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HomeMy WebLinkAboutDERR-2024-012508 24001739.001A/SLC24R174875 Page i of iv November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com CONTAMINATED SOIL REMOVAL REPORT BASTIAN DITCH SHALLOW FLOOD PLAIN SOILS OLYMPIA DEVELOPMENT UNINCORPORATED SALT LAKE COUNTY, UTAH KLEINFELDER PROJECT NO. 24001739.001A November 19, 2024 Copyright 2024 Kleinfelder All Rights Reserved ONLY THE CLIENT OR ITS DESIGNATED REPRESENTATIVES MAY USE THIS DOCUMENT AND ONLY FOR THE SPECIFIC PROJECT FOR WHICH THIS REPORT WAS PREPARED 24001739.001A/SLC24R174875 Page ii of iv November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com A Report Prepared for: Mr. Doug Young Executive Director SOJO118, LLC 6150 South Redwood Road, Suite 150 Taylorsville, UT 84123 CONTAMINATED SOIL REMOVAL REPORT BASTIAN DITCH SHALLOW FLOOD PLAIN SOILS OLYMPIA DEVELOPMENT UNINCORPORATED SALT LAKE COUNTY, UTAH KLEINFELDER PROJECT NO. 24001739.001A Prepared by: ________________________________ Matt Ellison, PG Project Professional ________________________________ Mike Gronseth, PG, PE, PMP Senior Project Manager KLEINFELDER 849 West Levoy Drive, Suite 200 Salt Lake City, Utah 84123 Phone: 801.261.3336 November 19, 2024 Kleinfelder Project No: 24001739.001A 24001739.001A/SLC24R174875 Page iii of iv November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com TABLE OF CONTENTS ___________________________________________________________________________________ Section Page 1 INTRODUCTION ..................................................................................................................... 1 1.1 BACKGROUND ..................................................................................................................... 1 1.2 SITE HISTORY AND DESCRIPTION ........................................................................................ 1 1.3 REGULATORY HISTORY AND CONTAMINANTS OF CONCERN ............................................. 2 1.4 REGULATORY ACTION LEVELS ............................................................................................. 3 1.5 PRIOR SITE INVESTIGATIONS .............................................................................................. 3 1.5.1 Phase II Environmental Site Assessment ............................................................... 3 1.6 PRIOR SITE REMEDIATION .................................................................................................. 4 1.6.1 Contaminated Soil Removal – Joshua Tree Parcel of Olympia Development ....... 4 2 SOIL REMOVAL ACTIVITIES ..................................................................................................... 7 2.1 PRE-FIELD ACTIVITIES .......................................................................................................... 7 2.2 SOIL REMOVAL ACTIVITIES .................................................................................................. 7 2.2.1 Soil Removal Activities ........................................................................................... 8 3 SAMPLING ACTIVITIES ............................................................................................................ 9 3.1 POST-REMOVAL CONFIRMATION SOIL SAMPLING ............................................................. 9 3.2 STOCKPILE SAMPLING ....................................................................................................... 10 4 SOIL ANALYTICAL RESULTS ................................................................................................... 11 4.1 POST-REMOVAL CONFIRMATION SOIL ANALYTICAL RESULTS ......................................... 11 4.2 STOCKPILE SOIL ANALYTICAL RESULTS ............................................................................. 12 5 DATA QUALITY OBJECTIVES AND QA/QC ............................................................................... 13 5.1 FIELD QUALITY ASSURANCE AND QUALITY CONTROL ...................................................... 13 5.2 DATA QUALITY OBJECTIVES .............................................................................................. 13 5.2.1 Precision ............................................................................................................... 14 5.2.2 Accuracy and Completeness ................................................................................ 15 5.2.3 Representativeness and Comparability ............................................................... 16 6 SUMMARY AND CONCLUSIONS ............................................................................................ 17 7 LIMITATIONS ....................................................................................................................... 19 8 REFERENCES ........................................................................................................................ 21 24001739.001A/SLC24R174875 Page iv of iv November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com TABLES 1 Confirmation Soil Sample Results 2 Stockpile Sample Results 3 Impacted Stockpile Sample Results 4 Summary of Quality Control Results FIGURES 1 Site Location Map 2 Areas of Environmental Concern 3 Extent and Depth of Shallow Soil Impact East of Bastian Ditch 4 Post-Removal Confirmation Sample Locations and Excavation Boundary 5 Stockpile Locations APPENDICES A Prior Investigation Data and Regulatory Approval Letters B Standard Operating Procedures C Laboratory Analytical Reports and Chain-of-Custody Documentation D Waste Manifests 24001739.001A/SLC24R174875 Page 1 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 1 INTRODUCTION ___________________________________________________________________________________ 1.1 BACKGROUND This report documents the metals-impacted soil removal activities performed on an approximately 40-acre portion of the greater 900-acre Olympia property (referred herein as the Bastian Ditch Shallow Flood Plain Soils, or Site). The Olympia property is part of Kennecott Operable Unit (OU) 5 and is located northeast of the intersection of Highway 111 and Butterfield Canyon Road in Salt Lake County, Utah. Portions of the Olympia property, including the shallow flood plain soils, have been impacted with lead and arsenic-containing sediment originating from mining areas northwest of the Site, which was carried to the Site via the Bastian Ditch. This removal action addressed metals-impacted soils within the shallow flood plain soils only, future reports will address the remaining areas of the Olympia property. The shallow flood plain soils and the greater Olympia boundaries are presented in Figure 1. Kleinfelder conducted this work on behalf of SOJO118, LLC. Kleinfelder began the soil removal activities in October 2023 and completed the field effort in October 2024. The soil removal was conducted in accordance with the approved Soil Management Plan (Kleinfelder, 2023b) and the Addendum No. 1 to the Final Soil Management Plan (Kleinfelder, 2023c). The DERR Soil Management Plan (SMP) and the SMP Addendum No. 1 approval letters are included in Appendix A. This report documents the soil removal activities conducted at the Site. 1.2 SITE HISTORY AND DESCRIPTION Mining-impacted water from Bingham Canyon was gravity fed through the Bastian Ditch from at least 1937 through approximately 1985. The Bastian Ditch is a feature of the Kennecott South Zone Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) Operable Unit 5 (OU5) Arco Tailings. Water was distributed through the Bastian Ditch from the Bingham Mining District to irrigate agricultural properties in South Jordan and Herriman. Due to this historical activity, tailings and/or mine sediments with elevated concentrations of lead and arsenic have been documented in the vicinity of several ditches and creeks including the Bastian Ditch, Butterfield Ditch, Butterfield Creek, 24001739.001A/SLC24R174875 Page 2 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com Copper Creek, and the Bingham Tunnel Transite Pipeline. The Bastian Ditch enters the Site from the north and flows to the south and east. Copper Creek crosses the northern portion of the Site, from west to east. Butterfield Creek and Butterfield Ditch cross the southern portion of the Site from west to east. The historical alignment of the Bastian Ditch extends approximately 3,300 feet across Olympia from north to south. Butterfield Creek (OU-3) crosses Olympia in two locations: its southwest corner and southeast corner, totaling approximately 1.2 miles of waterway. Butterfield Ditch (a sub-drainage of Butterfield Creek) crosses the central portion of Olympia. Copper Creek (OU-6) crosses the north edge of Olympia in two locations: its northwest corner and north-center, totaling approximately one mile of waterway. The Bingham Tunnel, consisting of an 8-inch and 10-inch pipeline, traverses the west-central portion of the Site, generally from north to south, totaling approximately 0.7 miles. The locations of historical waterways crossing the Olympia property are presented on Figure 2. The proposed future Site development will include residential land use. Site soils were removed in accordance with the established Unrestricted Land Use Standards. 1.3 REGULATORY HISTORY AND CONTAMINANTS OF CONCERN The Utah Department of Environmental Quality (UDEQ) Division of Environmental Response and Remediation (DERR) and the U.S. Environmental Protection Agency (EPA) Region 8 (the Agencies) have regulatory authority for contaminated soil management within the Kennecott South Zone operable units, including soils that have been impacted by Butterfield Creek (OU3), Bastian Ditch (OU5), and Copper Creek (OU6). A 2015 joint Technical Memorandum prepared by the Agencies established soil action levels for the Kennecott South Zone Operable Units based on land use. Cleanup standards for metals impacted soils associated with OU5 Bastian Ditch were established under this memorandum. Salt Lake County Contaminated Soils Ordinance, Title 9 Chapter 9.5 establishes a method for identifying and regulating impacted soils within Salt Lake County that are associated with the Kennecott OUs. 24001739.001A/SLC24R174875 Page 3 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com The contaminants of concern (COCs) are lead and arsenic in soil, deposited where the Bastian Ditch waterway and its tributaries crossed the Site. Kleinfelder understands that SOJO118 plans to develop the Site for mixed commercial, recreational, and residential development and intends to remediate the Site’s mining-impacted soil in compliance with Site Wide Unrestricted Land Use Standards of 50 milligrams per kilogram (mg/kg) arsenic and 500 mg/kg lead. 1.4 REGULATORY ACTION LEVELS A 2015 joint Technical Memorandum prepared by the DERR, and U.S. Environmental Protection Agency (USEPA) Region 8 (the Agencies) established soil cleanup action levels for the Kennecott North and South Zone Operable Units, including the following standards for the Bastian Ditch (OU5): •OU5 Agricultural Standards – 8,500 mg/kg lead and 100 mg/kg arsenic, •OU5 Industrial Standards – 4,414 mg/kg lead and 261 mg/kg arsenic, •OU5 Recreational Standards – 2,207 mg/kg lead and 283 mg/kg arsenic, •OU5 Unrestricted Standards – 500 mg/kg lead and 50 mg/kg arsenic 1.5 PRIOR SITE INVESTIGATIONS 1.5.1 Phase II Environmental Site Assessment In 2020 and 2021, Kleinfelder conducted a Phase II Environmental Site Assessment (ESA) of the 900-acre Olympia property to characterize the soils in areas associated with mining-impacted waterways. As part of that investigation Kleinfelder assessed the distribution of metals impacts in soil associated with the Bastian Ditch Shallow Flood Plain, east of the historical Bastian Ditch channel. The Bastian Ditch waterway appears to have lost its channelization on the southern portion of Olympia, which allowed metals-impacted water to flow across the ground surface in this area. During the Phase II Assessment, 90 test pit locations (ES-1 though ES-90) were assessed within the flood plain using a backhoe; and 173 soil samples were submitted for laboratory analysis of total lead and arsenic. The samples were collected in a grid pattern at approximate 300-foot spacings. Soil sample depths were selected based on XRF readings taken in 6-inch increments. The shallow soil exploration extended north to south and east to west until the apparent lateral extent of the shallow soil impacts were delineated. The flood plain test 24001739.001A/SLC24R174875 Page 4 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com pit locations are shown on Figure 3. A table summarizing the Phase II flood plain test pit soil analytical data is included in Appendix A. In general, flood plain sediments containing lead and arsenic at concentrations exceeding the Unrestricted Land Use Standards were limited primarily to the upper 6 inches of soil; but were observed up to 12 inches deep or more in some locations. Concentrations of arsenic reported in shallow flood plain soil samples ranged from 2.27 mg/kg to 52.2 mg/kg. Concentrations of lead reported in shallow flood plain soil samples ranged from 17.8 mg/kg to 1,350 mg/kg. Of the 90 test pit locations, vertical delineation was not achieved at four locations (ES-46, ES-55, ES-70, and ES-77). Vertical delineation was achieved at the remaining 86 locations. The proposed soil remediation methodology accommodates for the variability in depth of the soil impacts and includes field-screening the impacted soils during soil removal. Additional details regarding the methodologies and results of the Phase II ESA can be found in the Final Phase II Site Characterization - Portions of the 900-Acre Olympia Hills Property (Kleinfelder, 2023). 1.6 PRIOR SITE REMEDIATION 1.6.1 Contaminated Soil Removal – Joshua Tree Parcel of Olympia Development The Joshua Tree parcel is an approximately 15-acre parcel located in the northeastern area of the greater Olympia Development that contained impacted shallow flood plain soils. To remediate the metals impacted soils identified in the Phase II investigation, soil removal activities were initiated on the Joshua Tree parcel in October 2023 and were completed in February 2024. Kleinfelder personnel directed the field activities and Richins General Engineering (Richins) was contracted by SOJO118 to provide the excavation equipment and conduct the earthmoving. Excavation and soil sampling activities were conducted in accordance with the SMP, the SMP Addendum No. 1, and followed the standard operating procedures (SOPs) included in Appendix B. The metals-impacted soil was removed in six-inch to one-foot intervals to allow Kleinfelder to screen the in-situ soil with a hand-held x-ray fluorescence (XRF) meter. Readings were taken continuously from the post-removal surfaces, including both the floor and sidewalls of the excavation. XRF readings that indicated metals concentrations would likely exceed the Unrestricted Use Standards (i.e., metals 24001739.001A/SLC24R174875 Page 5 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com concentrations greater than 70% of the Unrestricted Land-Use Standards – 35 mg/kg arsenic and 350 mg/kg lead) were removed as “impacted.” The impacted soil excavation boundaries are shown on Figure 4. Approximately 35,000 cubic yards of soil were removed from the Joshua Tree Parcel and stockpiled in the recreational parcel. Upon removal of the impacted soils, post-removal confirmation soil samples were collected from the ground surface and sidewalls of the excavations and characterization samples were collected from the stockpiles. The post-removal composite ground surface confirmation samples were generally collected as rectangular composite samples over areas no greater than approximately 13,000 square feet, with up to 5 aliquots spaced at 50-foot intervals, and lateral samples spaced 10 to 50 feet. Ground surface aliquots were collected from approximately 0 to 6-inches below the excavation surface. For post-removal excavation sidewalls up to 100 feet in length, samples were collected with 5 aliquots evenly spaced along the sidewall. For sidewalls greater than 100 feet in length, the sidewall was split in half and two samples were collected with 5 evenly spaced aliquots per sample. Sidewall aliquots were collected from approximately 0 to 3 inches below the excavation surface. Stockpiles were sampled at a frequency of one composite sample (10 aliquots) per approximate 250 cubic yards of stockpiled soil. Each aliquot was collected at a random location across the soil stockpile at a depth of approximately 6-inches below the surface. A total of 126 excavation stockpile samples were submitted for laboratory analysis. The highest concentration of arsenic in confirmation samples was 24.5 mg/kg and the highest concentration of lead in confirmation samples was 377 mg/kg. Analytical results of samples collected from the Joshua Tree parcel excavated stockpiles indicate that 4.7 percent (4.7) of the stockpiles placed in the area designated as open space or parks had lead concentrations above the Unrestricted Land Use Standards, however, none of the stockpile samples had arsenic concentrations above the Unrestricted Land Use Standards. None of the stockpile samples had lead or arsenic concentrations that exceeded the Recreational Land Use Standards, therefore; no offsite disposal was required. 24001739.001A/SLC24R174875 Page 6 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com The results of this remedial action demonstrated that soils impacted with lead and arsenic at concentrations above the applicable land use standards have been removed from the Joshua Tree Parcel in compliance with the project SMP and the SMP Addendum No. 1. Additional details regarding the methodologies and results of the Joshua Tree soil removal can be found in the Contaminated Soil Removal Report, Bastian Ditch Shallow Flood Plain Soils, Joshua Tree Parcel, Olympia Development, Unincorporated Salt Lake County, Utah. (Kleinfelder, 2024). 24001739.001A/SLC24R174875 Page 7 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 2 SOIL REMOVAL ACTIVITIES ___________________________________________________________________________________ The shallow flood plain soil removal activities began in October 2023 and were completed in October 2024. Kleinfelder personnel directed the field activities and Richins General Engineering (Richins) was contracted by SOJO118 to provide the excavation equipment and conduct the earthmoving. Excavation and soil sampling activities were conducted in accordance with the SMP, the SMP Addendum No. 1, and following the standard operating procedures (SOPs) included in Appendix B. The remedial excavation and soil sampling methodologies are described below. 2.1 PRE-FIELD ACTIVITIES Prior to the start of field activities, the following tasks were completed: •Blue Stakes of Utah was notified prior to the removal operations to identify and mark the location of buried utilities. •Richins prepared the required plans and secured construction permits prior to beginning the field activities, including:2 o Land Disturbance permit from the City of Herriman, o Construction Stormwater Pollution Protection Plan (SWPPP), and o Fugitive Dust Control Plan. •Kleinfelder and Richins held a pre-construction kick-off and health and safety meeting. 2.2 SOIL REMOVAL ACTIVITIES Richins, under Kleinfelder’s direction, used a tracked excavator to excavate soils impacted with lead and arsenic at concentrations above the Site’s Unrestricted Land Use Standards. Water trucks were used to control dust during soil excavation, loading, and transportation on the dirt haul roads. The excavated soil was transported to an area within Olympia that is designated for open space and/or parks (recreational 24001739.001A/SLC24R174875 Page 8 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com area) in accordance with the approved SMP and the SMP Addendum No. 1. During the soil removal activities, clean overburden was identified in some locations via XRF screening. To reduce the costs associated with hauling and/or disposing of clean soil, Kleinfelder directed Richins to leave the “clean” soil in place. Tasks related to the removal action are described below. 2.2.1 Soil Removal Activities Soil excavation began in the southeast corner of the Joshua Tree parcel near test pit location ES-66 (Figure 3) in October 2023 and was expanded to the south, west, and northwest, until the impacted soil excavations were completed in October 2024. The metals-impacted soil was removed in six-inch to one-foot intervals to allow Kleinfelder to screen the in-situ soil with a hand-held x-ray fluorescence (XRF) meter. Readings were taken continuously from the post-removal surfaces, including both the floor and sidewalls of the excavation. XRF readings that indicated metals concentrations would likely exceed the Unrestricted Use Standards (i.e., metals concentrations greater than 70% of the Unrestricted Land-Use Standards – 35 mg/kg arsenic and 350 mg/kg lead) were removed as “impacted.” The impacted soil excavation boundaries are shown on Figure 4. Based on the prior Site characterization and XRF screening during removal, the soils in the Site’s northeastern corner and western boundary contained lead and arsenic concentrations below the Unrestricted Land Use Standards and were left in place, in accordance with the DERR-approved SMP and the SMP Addendum No. 1. Soils impacted with lead and arsenic at concentrations above 70 percent of the Unrestricted Land Use Standards were excavated generally to depths of 1 to 2 feet and excavation limits are shown in Figure 4. In total, approximately 90,000 cubic yards of soil were removed and placed in the recreational parcel. Upon removal of the impacted soils, post-removal confirmation soil samples were collected from the ground surface and sidewalls of the excavations and characterization samples were collected from the stockpiles as described in Section 3. 24001739.001A/SLC24R174875 Page 9 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 3 SAMPLING ACTIVITIES ___________________________________________________________________________________ 3.1 POST-REMOVAL CONFIRMATION SOIL SAMPLING Following excavation of the metals-impacted soils, Kleinfelder collected post-removal confirmation composite soil samples from the excavation ground surface and sidewalls to document the lead and arsenic concentrations remaining in Site soils. The post-removal confirmation samples were labeled with a prefix “CS” and included the date the sample was collected (ex: CS-1_111523). Sidewall confirmation samples were denoted by including a “SW” in the sample name (ex: CS-10-SW-1_022624). The samples were collected in accordance with the project SMP, the SMP Addendum No. 1, and sampling SOPs. The post-removal composite ground surface confirmation samples were generally collected as rectangular composite samples over areas no greater than approximately 13,000 square feet, with up to 5 aliquots spaced at 50-foot intervals, and lateral samples spaced 10 to 50 feet. Ground surface aliquots were collected from approximately 0 to 6-inches below the excavation surface. For post-removal excavation sidewalls up to 100 feet in length, samples were collected with 5 aliquots evenly spaced along the sidewall. For sidewalls greater than 100 feet in length, the sidewall was split in half and two samples were collected with 5 evenly spaced aliquots per sample. Sidewall aliquots were collected from approximately 0 to 3 inches below the excavation surface. Aliquot locations were recorded with a handheld GPS unit. All soil aliquots from a given sample were combined into one zip-lock sample bag. The material was homogenized in the bag by shaking and kneading the contents. A total of 224 post-removal ground and sidewall samples were collected from the shallow flood plain soil excavations including the 76 confirmation samples that were collected from within the Joshua Tree parcel. Confirmation sample locations can be found in Figure 4. Soil samples were submitted to Pace National Analytical Laboratory (Pace) for analysis of lead and arsenic by USEPA method SW846-6010. Chain-of-custody procedures were followed for the handling of the samples and the chain-of-custody forms are included with the laboratory analytical reports in Appendix C. The confirmation sample results are found in Table 1. 24001739.001A/SLC24R174875 Page 10 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 3.2 STOCKPILE SAMPLING Soils with lead and arsenic concentrations that exceeded 70% of the Unrestricted Use Standards (350 mg/kg lead and 35 mg/kg arsenic) were excavated and stockpiled in an area designated for recreational use within Olympia. Approximately 90,000 cubic yards of soils were removed and transported to this area. The stockpiles were characterized to assess their appropriate disposal location. Stockpiles were sampled at a frequency of one composite sample (10 aliquots) per approximate 250 cubic yards of stockpiled soil. Each aliquot was collected a random location across the soil stockpile at a depth of approximately 6-inches below the surface. The samples were collected in accordance with the project SMP, the SMP Addendum No. 1, and sampling SOPs. All aliquots from a given sample were combined into one zip-lock sample bag. The material was homogenized in the bag by shaking and kneading the contents. A total of 566 excavation stockpile samples, including 126 from the Joshua Tree parcel, were submitted for laboratory analysis. Stockpile locations can be found in Figure 5. The stockpile samples were labeled with the prefix “SP” followed by the stockpile number and date the sample was collected (ex: SP-1_10262023) and analyzed at Pace for total concentrations of lead and arsenic using USEPA Method SW846-6010. Chain-of-custody procedures were followed for the handling of the samples and the chain-of-custody forms are included with the laboratory analytical reports in Appendix C. The stockpile analytical results and stockpile disposal locations are presented in Table 2. 24001739.001A/SLC24R174875 Page 11 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 4 SOIL ANALYTICAL RESULTS ___________________________________________________________________________________ 4.1 POST-REMOVAL CONFIRMATION SOIL ANALYTICAL RESULTS The laboratory reports indicate lead and arsenic concentrations in all post-removal confirmation soil samples, except for several sidewall samples collected along the southern boundary of the Site, are below the Unrestricted Land Use Standards. The southern sidewall samples collected from sample grids 90-100, 102, 120-124, 129, and 134 all exceeded the Unrestricted Land Use Standards however, these samples were collected at the property boundary with Ivory Homes. It is Kleinfelder’s understanding that Ivory Homes has been notified of the exceedances through SOJO118. The analytical results are summarized in Table 1, along with sampling information including sample date, sample interval/depth, sample purpose, sample configuration, associated cleanup action level, and analytical results. The highest concentration of arsenic in confirmation samples was 38.9 mg/kg and came from sample CS-98-SW-1_053024. Aside from the southern sidewall samples, the highest concentration of lead in confirmation samples was 314 mg/kg and came from sample CS-113_061324. The laboratory analytical reports are included in Appendix C. Note, confirmation sample numbers in Table 1 do not start at “zero” because they were continued in order following the completion of sampling activities within the Joshua Tree parcel. Analytical results for confirmation samples collected from the Joshua Tree parcel can be found in the Contaminated Soil Removal Report, Bastian Ditch Shallow Flood Plain Soils, Joshua Tree Parcel, Olympia Development, Unincorporated Salt Lake County, Utah. (Kleinfelder, 2024). While making room for additional stockpiles, Richins inadvertently moved portions of stockpiles that had been identified as exceeding the Unrestricted Land Use Standards and combined those portions with other stockpiles that did not exceed the Unrestricted Land Use Standards. Once this error was identified, three additional samples (DOZER-01, -02, and -03) were collected from the stockpiles that did not exceed the Unrestricted Land Use Standards to confirm that the added soil did not change the stockpile characterization. All three samples remained below the Unrestricted Land Use Standard, therefore; no further action was required. 24001739.001A/SLC24R174875 Page 12 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 4.2 STOCKPILE SOIL ANALYTICAL RESULTS Analytical results of samples collected from the excavated shallow flood plain soil stockpiles, including those from the Joshua Tree parcel, indicate that a total of 58 stockpiles placed in the area designated as open space or parks had lead concentrations that were above the Unrestricted Land Use Standards. Three (3) of the stockpile samples had arsenic concentrations above the Unrestricted Land Use Standards. The stockpiles that exceeded the Unrestricted Land Use Standard for lead and/or arsenic were mixed with nearby stockpiles that did not exceed the Unrestricted Land Use Standards. After the impacted stockpiles were sufficiently mixed, they were resampled to demonstrate that the lead and/or arsenic concentrations had been reduced to levels below the Unrestricted Land Use Standards. Each stockpile that was mixed and resampled had final lead and arsenic concentrations that were below the Unrestricted Land Use Standards and were staged in the area designated for open space or parks for possible reuse. None of the stockpile samples had arsenic concentrations that exceeded the Recreational Land Use Standards. One stockpile sample, SP-129_030624, had a lead concentration of 2,760 mg/kg which exceeds the Recreational Land Use Standard, therefore; offsite disposal was required for this stockpile. The analytical results are summarized in Table 2, along with sampling information including sample date, sample interval/depth, sample purpose, sample configuration, associated cleanup action level, and analytical results. The highest concentration of arsenic in stockpile samples was 206 mg/kg and came from sample SP-274_0502224. The highest concentration of lead in stockpile samples was 2,760 mg/kg and came from sample SP-129_030624. The laboratory analytical reports are included in Appendix C. The stockpile with a lead concentration that exceeded the Recreational Land Use Standard was analyzed under the Toxicity Characteristic Leaching Procedure (TCLP) for lead and the laboratory reported non- detect TCLP values for both arsenic and lead. As such, the stockpile was able to be removed from Site and disposed of at the Trans-Jordan Landfill. Analytical results for the impacted stockpile can be found in Table 3 and the waste manifests have been requested from the subcontractor and will be provided as Appendix D when they are made available. 24001739.001A/SLC24R174875 Page 13 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 5 DATA QUALITY OBJECTIVES AND QA/QC ___________________________________________________________________________________ 5.1 FIELD QUALITY ASSURANCE AND QUALITY CONTROL Quality Assurance (QA) and quality control (QC) procedures associated with the shallow flood plain soil removal were implemented to produce data that are accurate, credible, and representative of conditions at the Site. Kleinfelder’s QA/QC procedures for this project included: • Careful record keeping and documentation, • Use of appropriate equipment and decontamination procedures, • Documentation of Chain-of-Custody, and • The samples were submitted to Pace, a Utah-certified laboratory that follows QA/QC procedures consistent with USEPA standards. Laboratory QA/QC samples included method blanks, matrix spikes, duplicates, and calibration check samples. QA statements for the lab samples are included with the laboratory reports in Appendix E. Quality control for the sampling program included the use of standardized sample collection and handling methods, documenting pertinent field information, and keeping chain-of-custody records as prescribed herein. Single-use, disposable sampling tools were used for sample collection, or non-disposable sampling equipment was decontaminated between each sample location. 5.2 DATA QUALITY OBJECTIVES The purpose of data quality assessment is to assure that data generated under the QA/QC program is reconciled, accurate, and consistent with program data quality objectives (DQOs). The quality of the data was assessed based on precision, accuracy, completeness, representativeness, and comparability. The collected samples were analyzed for total arsenic and lead. 24001739.001A/SLC24R174875 Page 14 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com A review of the laboratory analytical reports indicated all sample analyses were performed within holding times, the samples were analyzed following the correct methods, all instruments and calibration check requirements were met, and concentrations of either lead or arsenic were not reported in the method blanks above the laboratory detection limits. Based on our review of the analytical data and associated data quality assessment findings, we believe that the data may be used for the intended purpose of characterizing the Site soils and determining that the concentrations of lead and arsenic in soils remaining in place in the areas of impacted soil removal are below the designated land use standards. 5.2.1 Precision Precision is the degree to which a measurement is reproducible and is quantitatively measured by calculating the Relative Percent Difference (RPD) of two measurements. RPD is defined as: 𝑅𝑅𝑅𝑅𝑅𝑅=(𝐴𝐴1 − 𝐴𝐴2)�𝐴𝐴1 +𝐴𝐴2)2 �× 100 Where A1 = Analytical result from the original sample A2 = Analytical result from the duplicate Laboratory precision was assessed by calculating the RPD between the original sample and its field duplicate. Field duplicate soil samples were collected at a frequency of approximately 10% of the soil samples submitted to the analytical laboratory. The samples were split with one portion submitted as a standard analytical sample and one portion as a blind duplicate. The data quality objective for the split sample analyses is an RPD of 35% or less. Of the 108 duplicate analyses, 89 (or 82.4%) met the RPD goal of 35% or less, as presented in Table 4. Of the 54 arsenic analyses, 50 (or 92.6%) met the RPD goal of 35% or less. Out of the 54 lead analyses, 39 (or 72.2%) met the RPD goal of 35% or less. 24001739.001A/SLC24R174875 Page 15 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 5.2.2 Accuracy and Completeness Accuracy is a determination of how close the measurement is to the true value and was assessed by the laboratory as part of their QA/QC procedures by review of the percent recovery in the matrix spike (MS), matrix spike duplicate (MSD), and laboratory control sample (LCS) analyses, and compared to the laboratory’s control limits. Percent Recovery is defined as: % Recovery = [ 100 (measured value/ true value)] For this data set: •195 out of 195 (100%) of the percent recoveries for the LCS analyses were within the established control limits. •160 out of 195 (82.1%) of the percent recoveries for the MS analyses were within the established control limits. •167 out of 195 (85.6%) of the percent recoveries for the MSD analyses were within the established control limits. The majority of the laboratory QA/QC results for LCS, MS, and MSD analyses fell within the laboratory established control limits and zero samples were rejected following the QA/QC procedures, therefore; the data is considered accurate. Completeness was measured as the number of samples that were within the established control limits for all quality control parameters. With 588 soil samples collected, each analyzed for total lead and arsenic, there are 1,176 analytical results. Of the 1,176 analytical results, 1 total arsenic and 18 total lead analytical results were qualified, which represents 0.02% of the sample analyses performed. While 0.02% of the sample results were qualified, zero samples were rejected which indicates that the dataset is 100% complete and exceeds the DQO of 90% valid data. 24001739.001A/SLC24R174875 Page 16 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 5.2.3 Representativeness and Comparability Representativeness was assessed by verifying the samples were analyzed within their analytical method holding times and that method blanks do not report any contamination. A review of the laboratory analytical reports indicated the sample analyses were performed within holding times and the method blanks did not report concentrations of either lead or arsenic. Comparability was assessed by reviewing the units of measure reported in the analytical results compared to the units of measure established for the action levels and by using analytical methods that are comparable to other similar studies in the same area and under the same regulatory framework. The units of measure reported by the laboratory are the same units of measure for the designated land use standards and the analytical methods employed are consistent with similar studies conducted in the area. 24001739.001A/SLC24R174875 Page 17 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 6 SUMMARY AND CONCLUSIONS ___________________________________________________________________________________ Kleinfelder conducted metals-impacted soil remediation of the shallow flood plain soils within the greater Olympia property from October 2023 through October 2024. Metals-impacted soils were excavated and hauled to a recreational parcel within Olympia. Post-removal confirmation soil samples were collected within the excavated areas to document the concentrations of lead and arsenic remaining in the Site soils. Stockpile samples were collected to determine the appropriate method of disposal for the excavated soils. Based on the laboratory analytical results, all lead and arsenic concentrations reported by the laboratories in the post-removal confirmation soil samples, except for samples collected from the southern boundary of the Site, are below the Unrestricted Land Use Standards. The southern sidewall samples collected from sample grids 90-100, 102, 120-124, 129, and 134 all exceeded the Unrestricted Land Use Standards; however, these samples were collected along the property boundary with Ivory Homes. Ivory Homes has been notified of the exceedances. Analytical results of samples collected from the excavated shallow flood plain soil stockpiles, including those from the Joshua Tree parcel, indicate that a total of 58 stockpiles placed in the area designated as open space or parks had lead concentrations that were above the Unrestricted Land Use Standards. Three (3) of the stockpile samples had arsenic concentrations above the Unrestricted Land Use Standards. The stockpiles that exceeded the Unrestricted Land Use Standard for lead and/or arsenic were mixed with nearby stockpiles that did not exceed the Unrestricted Land Use Standards. After the impacted stockpiles were sufficiently mixed, they were resampled to demonstrate that the lead and/or arsenic concentrations had been reduced to levels below the Unrestricted Land Use Standards. Each stockpile that was mixed and resampled had final lead and arsenic concentrations that were below the Unrestricted Land Use Standards and were staged in the area designated for open space or parks for possible reuse. None of the stockpile samples had arsenic concentrations that exceeded the Recreational Land Use Standards. One (1) stockpile sample had a lead concentration that exceeded the Recreational Land Use Standard, but the laboratory reported non-detect TCLP values for both arsenic and lead. As such, the stockpile was disposed of at the Trans-Jordan Landfill and no soil that exceeds the 24001739.001A/SLC24R174875 Page 18 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com lead or arsenic Unrestricted Land Use Standards remains in the stockpile area. The planned use of the stockpile area is recreational; however, if this area is eventually developed for residential land use, the soils exceeding the unrestricted standards should be appropriately addressed. These results demonstrate that soils impacted with lead and arsenic at concentrations above the applicable land use standards identified during Site characterization activities have been removed from the Site in compliance with the project SMP and the SMP Addendum No. 1. On behalf of SOJO118, Kleinfelder requests a no further action/remedial closure finding from the Agencies regarding remediation of metals-impacted soils at the Site. 24001739.001A/SLC24R174875 Page 19 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 7 LIMITATIONS ___________________________________________________________________________________ This work was performed in a manner consistent with that level of care and skill ordinarily exercised by other members of Kleinfelder’s profession practicing in the same locality, under similar conditions and at the date the services are provided. Our conclusions, opinions and recommendations are based on a limited number of observations and data. It is possible that conditions could vary between or beyond the data evaluated. Kleinfelder makes no other representation, guarantee or warranty, express or implied, regarding the services, communication (oral or written), report, opinion, or services provided. This corrective action was limited to removing the metals-impacted soils identified on the Site as detailed in the SMP dated June 29, 2023 (Kleinfelder DCN: SLC22R151411R1_R3) and Addendum No. 1 to Final SMP dated October 12, 2023 (Kleinfelder DCN: SLC23L159279). Kleinfelder will assume no responsibility or liability whatsoever for any claim, loss of property value, damage, or injury which results from pre-existing metals-impacted soils and/or hazardous materials being encountered or present on the project site, or from the discovery of such materials outside those areas identified during or prior to this corrective action. Kleinfelder offers various levels of investigative and engineering services to suit the varying needs of different clients. It should be recognized that definition and evaluation of geologic and environmental conditions are a difficult and inexact science. Judgments leading to conclusions and recommendations are generally made with incomplete knowledge of the subsurface conditions present due to the limitations of data from field studies. Although risk can never be eliminated, more detailed and extensive studies yield more information, which may help understand and manage the level of risk. Since detailed study and analysis involves greater expense, our clients participate in determining levels of service that provide adequate information for their purposes at acceptable levels of risk. More extensive studies, including subsurface studies or field tests, should be performed to reduce uncertainties. 24001739.001A/SLC24R174875 Page 20 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com This report may be used only by the client and only for the purposes stated within a reasonable time from its issuance. Land use, site conditions (both on- and off-site), or other factors may change over time, and additional work may be required. Non-compliance with any of these requirements by the client or anyone else, unless specifically agreed to in advance by Kleinfelder in writing will release Kleinfelder from any liability resulting from the use of this report by any unauthorized party. 24001739.001A/SLC24R174875 Page 21 of 21 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com 8 REFERENCES ___________________________________________________________________________________ DERR, 2015, Technical Memorandum, Compilation of Soil and Groundwater Action Levels, Kennecott North and South Zones Administrative File. December 29, 2015. Kleinfelder, 2023; Phase II Site Characterization – Portions of the 900-Acre Olympia Hills Property Located in Herriman City and Un-Incorporated Salt Lake County, Utah. (Document No. SLC22R147484_R1), dated December 6, 2022, revised March 15, 2023. Kleinfelder, 2023b; Soil Management Plan, Bastian Ditch Shallow Flood Plain Soils, Olympia Hills Development, Unincorporated Salt Lake County, Utah. (Document No. SLC22R151411R1_R3), dated June 29, 2023. Kleinfelder, 2023c; Addendum No. 1 to Final Soil Management Plan, Bastian Ditch Shallow Flood Plain Soils, Olympia Development, Unincorporated Salt Lake County, Utah. (Document No. SLC23L159279), dated October 12, 2023. Kleinfelder, 2024; Contaminated Soil Removal Report, Bastian Ditch Shallow Flood Plain Soils, Joshua Tree Parcel, Olympia Development, Unincorporated Salt Lake County, Utah. (Document No. SLC24R165682_R1), dated April 10, 2024. Ta b l e s Sample ID Date Collected Sample Depth Sample Type / Purpose Sample Configuration Arsenic (mg/kg)Lead (mg/kg) CS-53-032024 3/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.9 92.7 CS-54_032124 3/21/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10 106 CS-55_032124 3/21/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12 174 CS-56_032124 3/21/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.2 111 CS-57_032224 3/22/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 18.5 150 CS-58_032224 3/22/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 16.4 128 CS-59_032724 3/27/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 14.8 42.3 CS-60_032724 3/27/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.79 47.1 DUP-6 3/27/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.7 42.5 CS-61_032724 3/27/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 14.5 87.3 CS-62_032824 3/28/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12.9 76.6 CS-63_032824 3/28/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 14 104 CS-64_040224 4/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13 94.8 CS-65_040224 4/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.3 67.6 CS-66_040224 4/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11 83.5 CS-67_040224 4/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.3 119 CS-68_040424 4/4/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.48 30.1 CS-69_040524 4/5/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 7.56 33.7 CS-70_040524 4/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.14 80.3 DUP-7_071224 4/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.57 102 CS-71_040524 4/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.11 74.9 CS-72_041724 4/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.22 74.2 CS-73_041724 4/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12.8 121 CS-74_041724 4/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.78 56 CS-75_041724 4/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.8 89.5 CS-76_042224 4/22/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 7.8 52.4 CS-77_042224 4/22/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.82 80.2 CS-78_042224 4/22/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 7.91 38.6 CS-79_042324 4/23/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.8 80.7 CS-80_042324 4/23/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 17.7 167 DUP-8 4/23/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 15.6 181 DOZER-01 4/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 14.7 225 DOZER-02 4/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 7.95 92.4 CS-81_042624 4/26/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.7 221 Table 1 Confirmation Soil Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah 24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 1 Page 1 of 5 November 19, 2024 Sample ID Date Collected Sample Depth Sample Type / Purpose Sample Configuration Arsenic (mg/kg)Lead (mg/kg) Table 1 Confirmation Soil Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah CS-82_042624 4/26/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.1 150 CS-83_042624 4/26/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.3 176 CS-84_050224 5/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.1 182 CS-85_050224 5/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.98 67.8 CS-86_050224 5/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12.3 138 CS-87_050224 5/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 16.1 242 CS-88_050824 5/8/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.43 70.5 CS-89_051424 5/14/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.6 77.2 CS-89-SW-1_051424 5/14/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 16.5 310 CS-90_051624 5/16/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.45 85.3 DUP-9 5/16/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 21 107 CS-90-SW-1_051624 5/16/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 17.5 503 CS-91_051624 5/16/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.9 136 CS-91-SW-1 0-1.2_051624 5/16/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 29 877 CS-91-SW-1 1.2-2.4_051624 5/16/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.3 79.8 CS-91-SW-2_051624 5/16/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 27.6 819 CS-92_051724 5/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12.6 183 CS-92-SW-1_051724 5/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 22.6 649 CS-93_051724 5/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.43 80.4 J3 J6 O1 CS-93-SW-1_051724 5/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 27.7 855 CS-94_052424 5/24/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 6.04 65 CS-94-SW-1_052324 5/23/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 24.1 733 CS-95_052324 5/23/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.67 131 CS-95-SW-1_052324 5/23/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 37.5 1320 CS-96_052424 5/24/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.6 142 CS-96-SW-1_052424 5/24/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 28.8 902 CS-97_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.35 85.7 CS-97-SW-1_052924 5/29/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 27.6 866 CS-98_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.85 118 J3 J6 CS-98-SW-1_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 38.9 1270 CS-99_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 4.68 78.1 CS-99-SW-1_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 29.3 900 CS-100_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 6.19 48.8 24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 1 Page 2 of 5 November 19, 2024 Sample ID Date Collected Sample Depth Sample Type / Purpose Sample Configuration Arsenic (mg/kg)Lead (mg/kg) Table 1 Confirmation Soil Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah DUP-10 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.7 55.6 CS-100-SW-1_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 24.8 824 CS-101_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.87 108 CS-101-SW-1_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.5 209 CS-102_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 4.49 42.6 CS-102-SW-1_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 26.8 570 CS-103_053024 5/30/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 14.7 126 DOZER-03 6/3/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 20.6 308 CS-104_061024 6/10/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.7 58.6 CS-105_061024 6/10/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.3 202 CS-106_061024 6/10/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.3 86.5 CS-107_061024 6/10/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.9 113 CS-108_061124 6/11/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.63 68.6 CS-109_061124 6/11/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12.2 135 CS-110_061124 6/11/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.5 95.7 DUP-11 6/11/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.8 122 CS-111_061224 6/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.9 144 CS-112_061224 6/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.9 127 CS-113_061324 6/13/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 16.1 314 CS-114_061424 6/14/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 7.49 201 CS-115_061424 6/14/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.17 163 CS-116_061424 6/14/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 4.54 39.7 CS-117_061424 6/14/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 4.04 44.9 CS-118_061424 6/14/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 5.44 125 CS-119_062024 6/20/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.8 124 CS-120_061824 6/18/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 16.9 259 CS-DUP-12 6/18/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12.6 176 CS-121_061824 6/18/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.69 118 CS-120-SW-1_061824 6/18/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 22.2 593 CS-121-SW-1_061824 6/18/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 24.4 658 CS-122_062824 6/28/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.1 72.9 CS-122-SW-1_070124 6/18/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 27.3 767 CS-123_062824 6/28/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12.2 164 CS-123-SW-1-0-1.5_070124 6/18/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 31.8 968 CS-123-SW-1-1.5-3_070124 6/18/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 16.9 310 CS-124_062824 6/28/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.6 108 24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 1 Page 3 of 5 November 19, 2024 Sample ID Date Collected Sample Depth Sample Type / Purpose Sample Configuration Arsenic (mg/kg)Lead (mg/kg) Table 1 Confirmation Soil Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah CS-124-SW-1_070124 6/28/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 30.2 947 CS-125_062824 6/28/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.2 177 CS-126_062824 6/28/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 14.4 219 J6 CS-127_062824 6/28/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.3 106 CS-128_062824 6/28/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.8 140 CS-129_070224 7/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.4 104 CS-129-SW-1_070224 7/2/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 35.3 1360 CS-131_062424 6/24/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 6.48 37.3 CS-130_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.8 168 CS-DUP-13 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.58 85.3 CS-132_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.27 83.2 CS-133_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.1 130 CS-134_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.32 54.5 CS-134-SW-1_071124 7/11/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 36.2 1240 CS-135_071124 7/11/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.6 119 CS-136_070824 7/8/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.75 114 CS-137_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.3 244 CS-138_070924 7/9/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.2 133 CS-139_071124 7/11/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 7.49 50.4 CS-140_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.51 J6 80.6 J6 CS-DUP-14 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.34 87.8 CS-141_071024 7/10/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.01 65.7 CS-142_071024 7/10/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.3 92 CS-143_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.85 113 CS-144_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.51 88.2 CS-145_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.9 94.8 CS-146_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12.1 78.7 CS-147_071224 7/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 16 174 CS-148_071724 7/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.9 144 CS-149_071724 7/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.7 46.3 CS-150_071724 7/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.6 82.3 CS-DUP-15 7/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 16.1 96.8 CS-151-101124 10/11/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12.7 166 24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 1 Page 4 of 5 November 19, 2024 Sample ID Date Collected Sample Depth Sample Type / Purpose Sample Configuration Arsenic (mg/kg)Lead (mg/kg) Table 1 Confirmation Soil Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah CS-152_071724 7/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 16.4 177 J6 CS-153_071924 7/19/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 13.2 108 CS-154_082124 8/21/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 7.55 40.5 CS-155_082124 8/21/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.2 87.1 CS-156_082124 8/21/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 11.6 82.2 CS-157_072424 7/24/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.2 26.9 CS-158_072524 7/25/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 14.8 113 CS-159_071724 7/17/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 17 179 CS-160_081224 8/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 6.77 37.9 CS-DUP-16 8/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 4.45 23.3 CS-161_081224 8/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12 47.1 CS-162_081224 8/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 6.59 22.8 CS-163_081224 8/12/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 6.33 30.3 CS-164_081324 8/13/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 7.48 36.3 CS-165_081324 8/13/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.85 42.6 CS-166_081324 8/13/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 7.75 89.2 CS-167_081424 8/14/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.74 47 CS-168_081624 8/16/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 16.9 233 CS-169_081625 8/16/2024 0-6 inches post removal ground surface 6 - point composite sample with subsamples spaced 50 feet apart 12.4 106 CS-170_081624 8/16/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 9.65 32.5 DUP-17_081624 8/16/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 8.48 31.8 CS-171_081924 8/19/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 10.1 50.2 CS-172_081924 8/19/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 12 57.2 CS-Stockpile-102124 10/21/2024 0-6 inches post removal ground surface 5 - point composite sample with subsamples spaced 50 feet apart 7.33 60.3 50 500 mg/kg = milligrams per kilogram O1 = The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. J = The identification of the analyte is acceptable; the reported value is an estimate. J6 = The sample matrix interfered with the ability to make any accurate determination; spike value is low (1) Soil Action Levels for the Kennecott North and South Zone CERCLA Operable Units were established by the EPA Region 8 and Utah DERR in a joint Technical Memorandum dated December 29, 2015. Unrestricted Land Use Standards1 J3 = The associated batch QC was outside the established quality control range for precision. 24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 1 Page 5 of 5 November 19, 2024 Sample ID Date Collected Sample Depth Sample Configuration Sample Type / Purpose Final Disposition of Stockpiled  Soil Arsenic  (mg/kg) Lead  (mg/kg) SP‐1_10262023 10/26/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 30.9 523 SP‐1_A_092724 9/27/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16 214 SP‐1_B_092724 9/27/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 21.8 364 SP‐2_11022023 11/2/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 25.4 476 SP‐3_11102023 11/10/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 23.6 461 SP‐4_11102023 11/10/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 22.9 475 SP‐5_11102023 11/10/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 21.7 433 SP‐6_11102023 11/10/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 25.1 434 SP‐7_11152023 11/15/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 36.2 635 SP‐7_A_100124 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.4 239 SP‐DUP‐40 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.9 271 SP‐7_B_100124 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.6 227 SP‐8_11152023 11/15/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 28.6 429 SP‐9_11162023 11/16/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 32.2 612 SP‐9_A_100124 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.6 187 SP‐9_B_100124 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.8 287 SP‐10_11162023 11/16/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 29.1 456 SP‐11_11162023 11/16/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 30.9 574 SP‐11_A_100124 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.7 218 SP‐12_11162023 11/16/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 28.3 456 SP‐13_11162023 11/16/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 37.3 780 SP_13_A_100124 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 19 304 SP‐13_B_100124 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.1 266 SP‐13_C_100124 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.9 256 SP‐14_11162023 11/16/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 25.2 581 SP‐14_A_100124 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.1 250 SP‐14_B_100124 10/1/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.5 291 SP‐15_11162023 11/16/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 19.2 345 SP‐16_11162023 11/16/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 23.5 434 SP‐17_120123 12/1/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 8.57 150 SP‐18_120123 12/1/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.7 308 SP‐19_120123 12/1/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 13.6 252 SP‐20_120123 12/1/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 11.3 216 SP‐21_120123 12/1/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.9 243 SP‐22_120123 12/1/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.2 231 SP‐22_120623 12/6/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.9 189 Table 2 Stockpile Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah  24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 2 Page 1 of 18 November 19, 2024 Sample ID Date Collected Sample Depth Sample Configuration Sample Type / Purpose Final Disposition of Stockpiled  Soil Arsenic  (mg/kg) Lead  (mg/kg) Table 2 Stockpile Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah SP‐23_120623 12/6/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 11.8 109 SP‐24_120623 12/6/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.4 188 SP‐25_120623 12/6/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.9 169 SP‐26_120623 12/6/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 21.9 294 SP‐27_120623 12/6/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.3 213 SP‐28_120623 12/6/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.6 111 SP‐29_120623 12/6/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.5 144 SP‐30_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.2 192 SP‐31_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.7 214 SP‐32_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.9 169 SP‐33_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.2 159 SP‐34_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20.1 165 SP‐35_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 22.0 270 SP‐36_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 19.3 162 SP‐37_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.1 150 SP‐38_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.8 106 SP‐39_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 23.5 272 SP‐40_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 22.0 264 SP‐41_121123 12/11/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.8 136 SP‐42_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 9.73 63.2 SP‐43_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 13.2 162 SP‐44_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.5 183 SP‐45_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.5 127 SP‐46_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 23.9 367 SP‐47_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20.2 269 SP‐48_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.9 140 SP‐49_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.8 126 SP‐50_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16 160 SP‐51_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 11.8 118 SP‐52_121923 12/19/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 11.2 175 SP‐53_122023 12/20/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 11.5 223 SP‐54_122023 12/20/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.4 174 SP‐55_122023 12/20/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.4 205 SP‐56_122023 12/20/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.6 228 SP‐57_122023 12/20/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20.1 304 SP‐58_122223 12/22/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 9.49 134 SP‐59_122223 12/22/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 9.47 133  24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 2 Page 2 of 18 November 19, 2024 Sample ID Date Collected Sample Depth Sample Configuration Sample Type / Purpose Final Disposition of Stockpiled  Soil Arsenic  (mg/kg) Lead  (mg/kg) Table 2 Stockpile Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah SP‐60_122223 12/22/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.7 240 SP‐61_122223 12/22/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 9.7 132 SP‐62_122223 12/22/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 8.9 117 SP‐63_122223 12/22/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 7.21 92.7 SP‐64_122623 12/26/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 8.07 102 SP‐65_122623 12/26/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.3 117 SP‐66_122623 12/26/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.9 223 SP‐67_122623 12/26/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 18.9 231 SP‐68_122623 12/26/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 7.61 80 SP‐69_122623 12/26/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 13 188 SP‐70_122623 12/26/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20.4 223 SP‐71_122623 12/26/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.4 164 SP‐72_122623 12/26/23 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.2 102 SP‐73_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 7.69 39 SP‐74_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 9.11 56.3 SP‐75_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 9.42 37.1 SP‐76_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 13.7 161 SP‐77_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 9.6 39.2 SP‐78_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 10.2 44.2 SP‐80_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 10.9 53 SP‐81_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.3 103 SP‐82_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.6 108 SP‐83_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 13.9 141 SP‐84_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 10.1 89 SP‐85_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.4 143 SP‐86_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20 176 SP‐87_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.8 89.5 SP‐88_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.2 126 SP‐89_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14 83.6 SP‐90_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 19.4 135 SP‐91_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20.2 116 SP‐92_010424 1/4/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 18.3 115 SP‐93_011924 1/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.8 90.2 SP‐94_011924 1/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.3 93.4 SP‐95_011924 1/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.7 283 SP‐79_011924 1/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12 29.1 SP‐96_011924 1/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 19.1 174  24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 2 Page 3 of 18 November 19, 2024 Sample ID Date Collected Sample Depth Sample Configuration Sample Type / Purpose Final Disposition of Stockpiled  Soil Arsenic  (mg/kg) Lead  (mg/kg) Table 2 Stockpile Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah SP‐97_011924 1/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 13.5 94.5 SP‐98_011924 1/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.6 170 SP‐99_012924 1/29/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 9.79 54.6 SP‐100_012924 1/29/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 10.7 95.7 SP‐101_012924 1/29/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 10.3 108 SP‐102_012924 1/29/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20.1 464 SP‐103_012924 1/29/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.5 281 SP‐104_012924 1/29/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.4 304 SP‐105_030624 3/6/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 11 81.4 SP‐106_030624 3/6/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 18.4 236 SP‐107_030624 3/6/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 19.4 297 SP‐108_030624 3/6/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20.5 305 SP‐109_030624 3/6/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.5 124 SP‐110_030624 3/6/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.9 248 SP‐111_030624 3/6/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.4 358 SP‐112_030624 3/6/24 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Date Collected Sample Depth Sample Configuration Sample Type / Purpose Final Disposition of Stockpiled  Soil Arsenic  (mg/kg) Lead  (mg/kg) Table 2 Stockpile Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah SP‐328_052924 5/29/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20.2 320 SP‐329_052924 5/29/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 19.2 454 SP‐330_052924 5/29/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 13.9 259 SP‐DUP‐20 5/29/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.9 300 SP‐331_053124 5/31/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 19.8 334 SP‐332_053124 5/31/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.7 253 SP‐333_053124 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10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12 131 SP‐401_071124 7/11/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 11.3 178 SP‐402_071124 7/11/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 9.35 81.1 SP‐403_071124 7/11/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.7 337 SP‐404_071124 7/11/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 10.8 115 SP‐405_071124 7/11/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.5 256 SP‐406_071124 7/11/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 7.88 90.2 SP‐407_071124 7/11/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 9.26 113 SP‐408_071124 7/11/24 6 inches 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10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.7 363 SP‐451_081924 8/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 10.2 235 SP‐452_081924 8/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 18.2 440 SP‐453_081924 8/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.3 255 SP‐454_081924 8/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20.4 496 SP‐455_081924 8/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 21.5 574 SP‐455‐A_090624 9/6/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.5 342 SP‐456_081924 8/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.8 268 SP‐457_081924 8/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 20.6 556 SP‐457‐A_090624 9/6/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.7 288 SP‐458_081924 8/19/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.3 271 SP‐459_082024 8/20/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.6 151 SP‐460_082024 8/20/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15 146 SP‐DUP‐33 8/20/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 13.8 126 SP‐461_082024 8/20/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.7 256 SP‐462_082024 8/20/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 12.7 146 SP‐463_082024 8/20/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.2 182 SP‐464_082024 8/20/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 17.9 375 SP‐465_082024 8/20/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15 252  24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 2 Page 17 of 18 November 19, 2024 Sample ID Date Collected Sample Depth Sample Configuration Sample Type / Purpose Final Disposition of Stockpiled  Soil Arsenic  (mg/kg) Lead  (mg/kg) Table 2 Stockpile Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah SP‐466_082124 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 11.9 129 SP‐467_082124 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 10.3 103 SP‐468_082124 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 8.82 103 SP‐469_082124 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 13.2 182 SP‐470_082124 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 14.5 183 SP‐DUP‐34 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 16.5 278 SP‐471_082124 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 10.2 138 SP‐472_082124 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 7.82 66.3 SP‐473_082124 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 11.4 121 SP‐474_082124 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 15.7 159 SP‐475_082124 8/21/24 6 inches 10 ‐ point composite sample Stockpile Characterization Olympia Recreational Parcel 13.3 178 Recreational Land Use Standards1 283 2,207 Unrestricted Land Use Standards1 50 500 J5 = The sample matrix interfered with the ability to make any accurate determination; spike value is high. V = The sample concentration is too high to evaluate accurate spike recoveries. mg/kg = milligrams per kilogram J3 = The associated batch QC was outside the established quality control range for precision. J6 = The sample matrix interfered with the ability to make any accurate determination; spike value is low O1 = The analyte failed the method required serial diluƟon test and/or subsequent post‐spike criteria. These failures indicate matrix interference. E = The analyte concentraƟon exceeds the upper limit of the calibraƟon range of the instrument established by the iniƟalcalibraƟon (ICAL). (1) Soil Action Levels for the Kennecott North and South Zone CERCLA Operable Units were established by the EPA Region 8 and Utah DERR in a joint Technical Memorandum dated  J = The identification of the analyte is acceptable; the reported value is an estimate.  24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 2 Page 18 of 18 November 19, 2024 Lat Long Arsenic Lead Arsenic Lead SP-129_030624 40.525708 -112.058744 81.5 2760 NA NA SP-129_081624 40.525708 -112.058744 NA NA < 0.100 < 0.100 Unrestricted Land Use Standards1 283 2,207 TCLP Standards 5 5 mg/kg = milligrams per kilogram NA = Not analyzed Coordinates Concentration (mg/kg) (1) Soil Action Levels for the Kennecott North and South Zone CERCLA Operable Units were established by the EPA Region 8 and Utah DERR in a joint Technical Memorandum dated December 29, 2015. TCLP (mg/l) Table 3 Impacted Stockpile Sample Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah Sample ID 24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 3 Page 1 of 1 November 19, 2024 Arsenic Lead CS-60_032724 9.79 47.1 DUP-6 13.7 42.5 Relative Percent Difference (%)33.29 10.27 CS-70_040524 9.1 80.3 DUP-7 8.57 102 Relative Percent Difference (%)6.44 23.81 CS-80_042324 17.7 167 DUP-8 15.6 181 Relative Percent Difference (%)12.61 8.05 CS-90_051624 9.45 85.3 DUP-9 21 107 Relative Percent Difference (%)75.86 22.57 CS-100_053024 6.19 48.8 DUP-10 10.7 55.6 Relative Percent Difference (%)53.40 13.03 CS-110_061124 10.5 95.7 DUP-11 10.8 122 Relative Percent Difference (%)2.82 24.16 CS-120_061824 16.9 259 DUP-12 12.6 176 Relative Percent Difference (%)29.15 38.16 CS-130_071224 11.8 168 DUP-13 9.58 85.3 Relative Percent Difference (%)20.77 65.30 CS-140_071224 8.51 80.6 DUP-14 9.34 87.8 Relative Percent Difference (%)9.30 8.55 CS-150_071724 13.6 82.3 DUP-15 16.1 96.8 Relative Percent Difference (%)16.84 16.19 CS-160_081224 6.77 37.9 DUP-16 4.45 23.3 Relative Percent Difference (%)41.35 47.71 CS-170_081624 9.65 32.5 DUP-17 8.48 31.8 Relative Percent Difference (%)12.91 2.18 Table 4 Summary of Quality Control Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah Concentrations (mg/L) Sample ID Confirmation Samples and Duplicates  24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 4 Page 1 of 5 November 19, 2024 Arsenic Lead Table 4 Summary of Quality Control Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah Concentrations (mg/L) Sample ID SP-140_031824 42 1030 DUP-1 32.4 583 Relative Percent Difference (%)25.81 55.42 SP-150_031924 22.5 372 DUP-2 22.7 308 Relative Percent Difference (%)0.88 18.82 SP-160-040324 14.4 259 DUP-3 14.7 221 Relative Percent Difference (%)2.06 15.83 SP-170-040324 14 183 DUP-4 18.7 370 Relative Percent Difference (%)28.75 67.63 SP-180-040924 9.53 80 DUP-5 11.4 120 Relative Percent Difference (%)17.87 40.00 SP-190_040924 13 146 DUP-6 9.99 86.6 Relative Percent Difference (%)26.19 51.07 SP-200_041024 18.8 252 DUP-7 17.7 251 Relative Percent Difference (%)6.03 0.40 SP-210_041624 15.6 216 DUP-8 13.6 211 Relative Percent Difference (%)13.70 2.34 SP-220_042424 19.2 269 DUP-9 17.2 249 Relative Percent Difference (%)10.99 7.72 SP-230_043024 9.76 62.2 DUP-10 10.9 116 Relative Percent Difference (%)11.04 60.38 SP-240_050124 21.2 522 DUP-11 22.1 542 Relative Percent Difference (%)4.16 3.76 SP-250_050124 12.6 180 DUP-12 12 78.8 Relative Percent Difference (%)4.88 78.21 Stockpile Samples and Duplicates  24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 4 Page 2 of 5 November 19, 2024 Arsenic Lead Table 4 Summary of Quality Control Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah Concentrations (mg/L) Sample ID SP-260_050124 9.82 168 DUP-13 10.5 133 Relative Percent Difference (%)6.69 23.26 SP-270_050224 22.5 372 DUP-14 22.7 308 Relative Percent Difference (%)0.88 18.82 SP-280_050924 17.4 430 DUP-15 16.6 394 Relative Percent Difference (%)4.71 8.74 SP-290_051524 14.7 269 DUP-16 11.7 239 Relative Percent Difference (%)22.73 11.81 SP-300_051724 14.8 290 DUP-17 11.1 668 Relative Percent Difference (%)28.57 78.91 SP-310_052224 12.7 422 DUP-18 13.6 183 Relative Percent Difference (%)6.84 79.01 SP-320_052424 12 221 DUP-19 10.5 200 Relative Percent Difference (%)13.33 9.98 SP-330_052924 13.9 259 DUP-20 14.9 300 Relative Percent Difference (%)6.94 14.67 SP-340_053124 18.7 464 DUP-21 16.5 366 Relative Percent Difference (%)12.50 23.61 SP-350_060324 20.1 587 DUP-22 18.5 574 Relative Percent Difference (%)8.29 2.24 SP-360_060724 19.6 473 DUP-23 15.8 424 Relative Percent Difference (%)21.47 10.93 SP-370_062024 18.5 255 DUP-24 20.5 341 Relative Percent Difference (%)10.26 28.86 Stockpile Samples and Duplicates  24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 4 Page 3 of 5 November 19, 2024 Arsenic Lead Table 4 Summary of Quality Control Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah Concentrations (mg/L) Sample ID SP-380_070224 22 659 DUP-25 21.9 722 Relative Percent Difference (%)0.46 9.12 SP-390_070324 19.2 396 DUP-26 17.5 380 Relative Percent Difference (%)9.26 4.12 SP-400_070924 15.3 183 DUP-27 12 131 Relative Percent Difference (%)24.18 33.12 SP-410_071224 9.52 83.4 DUP-28 12.7 122 Relative Percent Difference (%)28.62 37.59 SP-420_071924 13.4 331 DUP-29 20.5 549 Relative Percent Difference (%)41.89 49.55 SP-430_072524 14.3 219 DUP-30 14.5 200 Relative Percent Difference (%)1.39 9.07 SP-440_073124 9.24 186 DUP-31 7.01 113 Relative Percent Difference (%)27.45 48.83 SP-450_080524 12.3 290 DUP-32 15.7 363 Relative Percent Difference (%)24.29 22.36 SP-460_082024 15 146 DUP-33 13.8 126 Relative Percent Difference (%)8.33 14.71 SP-470_082124 14.5 183 DUP-34 16.5 278 Relative Percent Difference (%)12.90 41.21 SP-421-A_091024 18.2 348 DUP-35 17.5 355 Relative Percent Difference (%)3.92 1.99 SP-226B_091124 21.4 423 DUP-36 20.3 387 Relative Percent Difference (%)5.28 8.89 Stockpile Samples and Duplicates  24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 4 Page 4 of 5 November 19, 2024 Arsenic Lead Table 4 Summary of Quality Control Results Bastian Ditch Shallow Flood Plain Soil Olympia Development Herriman City, Utah Concentrations (mg/L) Sample ID SP-135_B_091324 19.1 335 DUP-37 15.9 265 Relative Percent Difference (%)18.29 23.33 SP-245_A_092024 13.7 242 DUP-38 15.9 304 Relative Percent Difference (%)14.86 22.71 SP-266_A_092524 14.2 177 DUP-39 13.1 183 Relative Percent Difference (%)8.06 3.33 SP-7_A_100124 15.4 239 DUP-40 16.9 271 Relative Percent Difference (%)9.29 12.55 SP-243_C_100824 17.2 296 DUP-41 17.8 306 Relative Percent Difference (%)3.43 3.32 SP-274_A_100824 22 264 DUP-42 27.4 294 Relative Percent Difference (%)21.86 10.75 Notes: mg/L = milligrams per liter DUP Bold = duplicate sample ‐ listed under the  = RPD exceeds the DQO of 35% Stockpile Samples and Duplicates  24001739.001A/SLC24R174875 © 2024 Kleinfelder Table 4 Page 5 of 5 November 19, 2024 Fi g u r e s SITE LOCATION MAP BASTIAN DITCH SHALLOW FLOOD PLAIN SOILOLYMPIA DEVELOPMENT HERRIMAN CITY, UTAH PROJECT: FILE NAME: FIGURE 1 DRAWN: CHECKED BY: DRAWN BY: FloodPlain_Fig1.pagxSA L T L A K E C I T Y , U T \\ a z r g i s s t o r p 0 3 \ G I S _ P r o j e c t s \ C l i e n t \ S O J O 1 1 8 \ 2 4 0 0 1 7 3 9 - J o s h u a T r e e \ O l y m p i a B a s t i a n D i t c h . a p r x PL O T T E D : 1 1 / 7 / 2 0 2 4 , K H a g a n 24001739 NOV 2024 M. ELLISON K. HAGAN The information included on this graphic representation has been compiled from a variety ofsources and is subject to change without notice. Kleinfelder makes no representations orwarranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use ofsuch information. This document is not intended for use as a land survey product nor is itdesigned or intended as a construction design document. The use or misuse of the informationcontained on this graphic representation is at the sole risk of the party using or misusing the information. Site Location APPROXIMATE OLYPMIA DEVELOPMENT BOUNDARY 0 2,000 4,000 Feet Basemap: USGS The National MapInset: National Geographic World Map map service via ESRI Locations are Approximate£ Explanation Approximate Excavation Area of Shallow Flood Plain Soils Approximate Olympia Development Boundary AREAS OF ENVIRONMENTAL CONCERN BASTIAN DITCH SHALLOW FLOOD PLAIN SOIL OLYMPIA DEVELOPMENT HERRIMAN CITY, UTAH FIGURE 2 PROJECT: DRAWN: DRAWN BY: CHECKED BY: FILE NAME: FloodPlain_Fig2.pagx 24001739 NOV 2024 K. HAGAN M. ELLISON SA L T L A K E C I T Y , U T \\ a z r g i s s t o r p 0 3 \ G I S _ P r o j e c t s \ C l i e n t \ S O J O 1 1 8 \ 2 4 0 0 1 7 3 9 - J o s h u a T r e e \ O l y m p i a B a s t i a n D i t c h . a p r x The information included on this graphic representation has beencompiled from a variety of sources and is subject to change withoutnotice. Kleinfelder makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to theuse of such information. This document is not intended for use as aland survey product nor is it designed or intended as a constructiondesign document. The use or misuse of the information contained on this graphic representation is at the sole risk of the party using ormisusing the information. ! ! ! ! ! !! ! HERRIMA N HIGHWAY 13055 SOU T H 64 0 0 W E S T Dansie Pond BACCHUS HIGHWAY Bu t t e r f i e l d D i t c h E a s t Residential Residential Residential Residential Residential Residential Residential Beehive Homes of Herriman (6352 W 13100 S) B a s t i a n D i t c h Butterfield Ditch B i n g h a m T u n n e l Coppe r C r e e k Butterfield Cr e e k B u t t e rfi eld Creek (Historical) 0 500 1,000 Feet£Locations are Approximate Note: Joshua Tree data can be found in the Contaminated Soil Removal Report, Bastian Ditch Shallow Flood Plain Soils, Joshua Tree Parcel, Olympia Development, Dated April 10, 2024. Kleinfelder document numberSLC24165682_R1. World Imagery: Salt Lake County, Maxar; Salt Lake County image date10/15/2021. Explanation Bastian Ditch Copper Creek Butterfield Creek Butterfield Creek (Historical) Butterfield Ditch Bingham Tunnel Dansie Pond Approximate Excavation Area of Shallow Flood Plain Soils Approximate Olympia Development Boundary EXTENT AND DEPTH OF SHALLOW SOIL IMPACTS EAST OF BASTIAN DITCH BASTIAN DITCH SHALLOW FLOOD PLAIN SOIL OLYMPIA DEVELOPMENT HERRIMAN CITY, UTAH FIGURE 3 SA L T L A K E C I T Y , U T \\ a z r g i s s t o r p 0 3 \ G I S _ P r o j e c t s \ C l i e n t \ S O J O 1 1 8 \ 2 4 0 0 1 7 3 9 - J o s h u a T r e e \ O l y m p i a B a s t i a n D i t c h . a p r x 24001739 NOV 2024 K. HAGAN M. ELLISON PROJECT: DRAWN: DRAWN BY: CHECKED BY: FILE NAME: FloodPlain_Fig3.pagx ! ! ! !A !A!A !A !A !A !A !A !A !A !A !A!A !A!A!A !A!A !A !A !A !A!A !A !A !A !A !A !A !A !A!A!A!A!A!A !A !A !A !A !A !A !A !A !A !A!A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A !A A A A A A A ABD-10-6 BD-10-35BD-10-30BD-10-28BD-10-16 BD-10-14BD-10-10 BD-9 BD-8 BD-7 BD-6 BD-5 BD-4 BD-3 BD-2 BD-1 BD-10 BD-10-19 BDE-6 BDE-5 BDE-4 BDE-3 BDE-2 BDE-1 BCE-3 BCE-5 BCE-2 BCE-4 BCE-6 BCE-1 BFD-9 BFD-7 BFD-4 BFD-3 BFD-2 BFD-1 BFD-5 CC-7 CC-8 CC-6 CC-5 CC-4 CC-3 CC-2 CC-1 ES-83 ES-82ES-81ES-80ES-79ES-78ES-77ES-76 ES-75ES-74ES-73ES-72ES-69 ES-68ES-67ES-66ES-65ES-64 ES-62ES-61 ES-60ES-59ES-58ES-57ES-56ES-54ES-53ES-52ES-51 ES-49ES-48ES-47ES-46 ES-71ES-70 ES-63 ES-55 ES-50 ES-9ES-8ES-7ES-6 ES-5ES-4ES-3ES-2ES-1 ES-45ES-44ES-43ES-40 ES-38ES-37ES-36ES-35ES-34ES-33ES-32 ES-31ES-30ES-29ES-25ES-24 ES-23ES-22ES-21ES-17ES-16ES-15 ES-14ES-13ES-12ES-11 ES-10 ES-42ES-41ES-39 ES-28 ES-27ES-26 ES-20ES-19ES-18 ES-90 ES-89 ES-88 ES-87 ES-86 ES-85 ES-84 Bu t t e f i e l d D i t c h E a s t Butterfield Ditch B a s t i a n D i t c h Copper Creek Butte r f i e l d C r e e k Basemap: ESRI World Imagery, Salt Lake County 10/15/2021. 0 250 500 Feet£Locations are Approximate Explanation !A Above the Recreational Standard (283 As / 2,207 Pb) !A Above the Unrestricted Land Use Standard but Below the Recreational Standard !A Below the Unrestricted Land Use Standard (50 As / 500 Pb) Copper Creek Bastian Ditch Butterfield Ditch Butterfield Creek A Lead detected at >500 mg/kg at 0-1 ft bgs Shallow impacted soils; Lead detected >500 mg/kg at the ground surface (0-0.5 ft bgs). Primarily <900 mg/kg lead. Approximate Olympia Development Boundary Note: Joshua Tree data can be found in the Contaminated Soil Removal Report, Bastian Ditch Shallow Flood Plain Soils, Joshua Tree Parcel, Olympia Development, Dated April 10, 2024. Kleinfelder document numberSLC24165682_R1. World Imagery: Salt Lake County, Maxar; Salt Lake County image date10/15/2021. POST-REMOVAL CONFIRMATION SAMPLE LOCATIONS AND EXCAVATION BOUNDARY BASTIAN DITCH SHALLOW FLOOD PLAIN SOIL OLYMPIA DEVELOPMENT HERRIMAN CITY, UTAH FIGURE 4 SA L T L A K E C I T Y , U T \\ a z r g i s s t o r p 0 3 \ G I S _ P r o j e c t s \ C l i e n t \ S O J O 1 1 8 \ 2 4 0 0 1 7 3 9 - J o s h u a T r e e \ O l y m p i a B a s t i a n D i t c h . a p r x 24001739 NOV 2024 K. HAGAN M. ELLISON PROJECT: DRAWN: DRAWN BY: CHECKED BY: FILE NAME: FloodPlain_Fig4.pagx 212019 421843 41 4046504548 4 5321 7 6 14 15 138 12 9 1617232224 52 11 49 25 10 44 39 33 26 37 34 38 35 31302827 47 51 29 36 32 8991100901021299913412412397122121120969592949398 143148149150 101151103147146152135 126 125127 84130142133128 82 8113283141115116117119118 137 67 748872656664 79114 80 75108 77113112 138139140 7873765870555657 68 71 69 5453107109 59 110 60 111144145 61 161105 62106 156 63 160 155 157 168 85 169167154162 170 171 158 86 163 172 153 87 164159 166 104 165 % % % %% 133 128 119 118137 114138 119-A 119-B 119-C 119-D119-E 0 100 200 Feet£Locations are Approximate Note: Joshua Tree data can be found in the Contaminated Soil Removal Report, Bastian Ditch Shallow Flood Plain Soils, Joshua Tree Parcel, Olympia Development, Dated April 10, 2024. Kleinfelder document numberSLC24165682_R1. World Imagery: Salt Lake County, Maxar, Microsoft; Salt Lake Countyimage date 10/15/2021. Explanation %Post-Removal Confirmation Sample Location Post-Removal Confirmation Sampling Grid Approximate Excavation Area of Shallow Flood Plain Soils Estimated Impacted Soil Area Joshua Tree Parcel Post-Removal Confirmation Sampling Grid Approximate Excavation Area of Joshua Tree Parcel Approximate Olympia Development Boundary STOCKPILE LOCATIONS BASTIAN DITCH SHALLOW FLOOD PLAIN SOIL OLYMPIA DEVELOPMENT HERRIMAN CITY, UTAH FIGURE 5 SA L T L A K E C I T Y , U T \\ a z r g i s s t o r p 0 3 \ G I S _ P r o j e c t s \ C l i e n t \ S O J O 1 1 8 \ 2 4 0 0 1 7 3 9 - J o s h u a T r e e \ O l y m p i a B a s t i a n D i t c h . a p r x 24001739 NOV 2024 K. HAGAN M. ELLISON PROJECT: DRAWN: DRAWN BY: CHECKED BY: FILE NAME: FloodPlain_Fig5.pagx 0 150 300 Feet_Locations are Approximate Note: Joshua Tree data can be found in the Contaminated Soil Removal Report, Bastian Ditch Shallow Flood Plain Soils, Joshua Tree Parcel, Olympia Development, Dated April 10, 2024. Kleinfelder document numberSLC24165682_R1. World Imagery: Salt Lake County, Maxar; Salt Lake County image date10/15/2021. Explanation Stockpiles SP-126 through SP-475 Stockpiles from Joshua Tree Parcel Approximate Excavation Area of Joshua Tree Parcel Approximate Excavation Area of Shallow Flood Plain Soils Approximate Olympia Development Boundary Ap p e n d i x A 24001739.001A/SLC24R174875 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com APPENDIX A PRIOR INVESTIGATION DATA AND REGULATORY APPROVAL LETTERS ___________________________________________________________________________________ •Phase II Flood Plain Soil Investigation Data Table and October 2022 EPA Letter Re: Soil Mixing •Soil Management Plan Approval Letter from UDERR. •Addendum No. 1 to Final Soil Management Plan Approval Letter from UDERR. ES-1A ES-1 6/18/2020 0 18.3 132 ES-1B ES-1 6/18/2020 0.5 8.47 57.8 ES-2A ES-2 6/18/2020 0 15.8 104 ES-2B ES-2 6/18/2020 0.5 10.7 50.2 ES-3A ES-3 6/18/2020 0 16.6 111 ES-3B ES-3 6/18/2020 0.5 9.56 52.1 ES-4A ES-4 6/18/2020 0 15.4 105 ES-4B ES-4 6/18/2020 0.5 9.94 50 ES-5A ES-5 6/18/2020 0 16.9 146 ES-5B ES-5 6/18/2020 0.5 12.4 62.9 ES-6A ES-6 6/18/2020 0 19.3 320 ES-6B ES-6 6/18/2020 0.5 8.28 34.4 ES-6C ES-6 6/18/2020 1 8.11 38.2 ES-7A ES-7 6/18/2020 0 16.6 217 ES-7B ES-7 6/18/2020 0.5 11.4 43.6 ES-8A ES-8 6/18/2020 0 17.6 281 ES-8B ES-8 6/18/2020 0.5 7.78 31.8 ES-8C ES-8 6/18/2020 1 6.49 24.9 ES-9A ES-9 6/18/2020 0 13.3 97.4 ES-9B ES-9 6/18/2020 0.5 7.82 20.8 ES-10A ES-10 6/18/2020 0 10.9 68.8 ES-10B ES-10 6/18/2020 0.5 7.11 17.8 ES-11A ES-11 6/18/2020 0 16.1 178 ES-11B ES-11 6/18/2020 0.5 16.4 126 ES-12A ES-12 6/18/2020 0 18.4 259 ES-12B ES-12 6/18/2020 1 9.32 51.2 ES-13A ES-13 6/18/2020 0 13.2 81.6 ES-13B ES-13 6/18/2020 0.5 10.2 27.3 ES-14A ES-14 6/18/2020 0 15 171 ES-14B ES-14 6/18/2020 0.5 13 27.3 ES-15A ES-15 6/18/2020 0 22.4 695 ES-15B ES-15 6/18/2020 0.5 11 51.1 ES-15C ES-15 6/18/2020 1 9.17 40 ES-16A ES-16 6/18/2020 0 23.5 704 ES-16B ES-16 6/18/2020 0.5 8.98 28.7 ES-16C ES-16 6/18/2020 1 10 26.3 ES-17A ES-17 6/18/2020 0 21.7 459 ES-17B ES-17 6/18/2020 0.5 19.1 384 ES-17C ES-17 6/18/2020 1 8.12 22 ES-18A ES-18 6/18/2020 0 17.1 376 ES-18B ES-18 6/18/2020 0.5 18.3 345 ES-19A ES-19 6/18/2020 0 14.4 141 ES-19B ES-19 6/18/2020 0.5 17.3 90.2 ES-20A ES-20 6/18/2020 0 26.6 319 ES-20B ES-20 6/18/2020 0.5 22.9 229 ES-21A ES-21 6/18/2020 0 39.9 576 ES-21B ES-21 6/18/2020 0.5 15.4 109 ES-21C ES-21 6/18/2020 1 6.63 20.1 ES-22A ES-22 6/18/2020 0 26.6 377 ES-22B ES-22 6/18/2020 0.5 11.7 51.1 ES-23A ES-23 6/18/2020 0 25.8 289 ES-23B ES-23 6/18/2020 0.5 9.05 34.2 ES-24B ES-24 6/18/2020 0.5 16.3 91.5 ES-25A ES-25 6/18/2020 0 17.1 142 ES-25B ES-25 6/18/2020 0.5 18.6 143 Table 3 Shallow Soil Characterization - Soil Analytical Results Olympia Hills Arsenic (mg/kg) Collection Date Depth (top of sample) Shallow Soil Characterization Samples Sample ID Lead (mg/kg)Exploration ID 20210351.001A/SLC22R147484 © 2022 Kleinfelder 5 December 6, 2022 www.kleinfelder.com ES-26B ES-26 6/18/2020 0.5 16.6 136 ES-27A ES-27 6/18/2020 0 16.8 199 ES-27B ES-27 6/18/2020 0.5 12.1 86.6 ES-28A ES-28 6/18/2020 0 39.9 699 ES-28B ES-28 6/18/2020 0.5 11.1 37.5 ES-28C ES-28 6/18/2020 1 9.74 33.3 ES-29A ES-29 6/18/2020 0 30.8 398 ES-29B ES-29 6/18/2020 0.5 30.3 318 ES-29C ES-29 6/18/2020 1 6.24 23.9 ES-30A ES-30 6/18/2020 0 37.2 819 ES-30B ES-30 6/18/2020 0.5 18.9 197 ES-30C ES-30 6/18/2020 1 9.29 76.3 ES-31A ES-31 6/18/2020 0 27.4 411 ES-31B ES-31 6/18/2020 0.5 18.9 203 ES-32A ES-32 6/18/2020 0 28 792 ES-32B ES-32 6/18/2020 0.5 19.1 339 ES-32C ES-32 6/18/2020 1 9.58 66.9 ES-32D ES-32 6/18/2020 1.5 8.41 53.9 ES-33A ES-33 6/18/2020 0 24.8 665 ES-33B ES-33 6/18/2020 0.5 21.2 407 ES-33C ES-33 6/18/2020 1 10.6 90.7 ES-33D ES-33 6/18/2020 1.5 7.06 33.3 ES-34A ES-34 6/18/2020 0 47.8 1,350 ES-34B ES-34 6/18/2020 0.5 31.9 832 ES-34C ES-34 6/18/2020 1 8.69 74.3 ES-34D ES-34 6/18/2020 1.5 8.16 29.2 ES-35A ES-35 6/18/2020 0 26.4 505 ES-35B ES-35 6/18/2020 0.5 9.41 70.6 ES-35C ES-35 6/18/2020 1 6.95 27.6 ES-35D ES-35 6/18/2020 1.5 10.9 35.3 ES-36A ES-36 6/18/2020 0 31.3 498 ES-36B ES-36 6/18/2020 0.5 28 361 ES-36C ES-36 6/18/2020 1 7.19 36.9 ES-36D ES-36 6/18/2020 1.5 6.54 33.8 ES-37A ES-37 6/18/2020 0 30.6 543 ES-37B ES-37 6/18/2020 0.5 32.4 499 ES-37C ES-37 6/18/2020 1 8.26 42.5 ES-38A ES-38 6/18/2020 0 16 168 ES-38B ES-38 6/18/2020 0.5 11.3 62.1 ES-39A ES-39 6/18/2020 0 21.5 539 ES-39B ES-39 6/18/2020 0.5 16 144 ES-39C ES-39 6/18/2020 1 9.42 37.1 ES-40A ES-40 6/18/2020 0 16.9 472 ES-40B ES-40 6/18/2020 0.5 8.64 82.4 ES-40C ES-40 6/18/2020 1 6.25 25.4 ES-41A ES-41 6/18/2020 0 15.1 262 ES-41B ES-41 6/18/2020 0.5 15.9 291 ES-41C ES-41 6/18/2020 1 13.5 37.9 ES-42A ES-42 6/18/2020 0 15.2 223 ES-42B ES-42 6/18/2020 0.5 12.9 126 ES-42C ES-42 6/18/2020 1 9.3 41.4 ES-42D ES-42 6/18/2020 1.5 8.51 38.2 ES-43A ES-43 6/18/2020 0 12.5 137 ES-43B ES-43 6/18/2020 0.5 8.43 33.3 ES-44A ES-44 6/18/2020 0 13.6 157 ES-44B ES-44 6/18/2020 0.5 8.84 37.5 ES-45A ES-45 6/18/2020 0 11.8 80.9 ES-45B ES-45 6/18/2020 0.5 11.9 36.5 ES-46A ES-46 7/22/2020 0 35.9 1260 ES-47A ES-47 7/22/2020 0 7.63 25.9 ES-48A ES-48 7/22/2020 0 14.6 237 ES-49A ES-49 7/22/2020 0 12.3 156 Lead (mg/kg) Arsenic (mg/kg) Table 3 (Continued….) Shallow Soil Characterization - Soil Analytical Results Olympia Hills Sample ID Exploration ID Collection Date Depth (top of sample) 20210351.001A/SLC22R147484 © 2022 Kleinfelder 6 December 6, 2022 www.kleinfelder.com ES-50A ES-50 7/22/2020 0 14.3 196 ES-51A ES-51 7/22/2020 0 21.7 571 ES-51B ES-51 7/22/2020 0.5 19.8 417 ES-52A ES-52 7/22/2020 0 17.5 320 ES-53A ES-53 7/22/2020 0 13.4 79.2 ES-54A ES-54 7/22/2020 0 13.1 77.2 ES-55A ES-55 7/22/2020 0 42.5 701 ES-55B ES-55 7/22/2020 0.5 41.8 657 ES-56A ES-56 7/22/2020 0 20 217 ES-57A ES-57 7/22/2020 0 31.5 387 ES-58A ES-58 7/22/2020 0 27.4 369 ES-59A ES-59 7/22/2020 0 14.2 150 ES-60A ES-60 7/22/2020 0 11.5 64.7 ES-61A ES-61 7/22/2020 0 18.4 372 ES-62A ES-62 7/22/2020 0 18.1 414 ES-63A ES-63 7/22/2020 0 52.2 1130 ES-64A ES-64 7/22/2020 0 30.1 535 ES-64B ES-64 7/22/2020 0.5 2.27 1100 ES-64C ES-64 7/22/2020 1 8.37 34.9 ES-65A ES-65 7/22/2020 0 25.7 637 ES-65B ES-65 7/22/2020 0.5 32.2 674 ES-65C ES-65 7/22/2020 1 8.81 97.5 ES-66A ES-66 7/22/2020 0 28.1 526 ES-66B ES-66 7/22/2020 0.5 26.5 435 ES-66C ES-66 7/22/2020 1 7.03 39.5 ES-67A ES-67 7/22/2020 0 15.4 184 ES-67B ES-67 7/22/2020 0.5 5.98 26.5 ES-67C ES-67 7/22/2020 1 7.74 31.9 ES-68A ES-68 7/22/2020 0 12.1 105 ES-69A ES-69 7/23/2020 0 18.7 341 ES-70A ES-70 7/23/2020 0 28.5 506 ES-71A ES-71 7/23/2020 0 16.2 246 ES-72A ES-72 7/23/2020 0 15.1 254 ES-73A ES-73 7/23/2020 0 15.7 262 ES-74A ES-74 7/23/2020 0 14.5 317 ES-74C ES-74 7/23/2020 1 10.4 71.8 ES-74D ES-74 7/23/2020 1.5 11.3 51.3 ES-75A ES-75 7/23/2020 0 11.1 89.8 ES-76A ES-76 7/23/2020 0 18.5 264 ES-77A ES-77 7/23/2020 0 23.8 585 ES-78A ES-78 7/23/2020 0 14.8 166 ES-79A ES-79 7/23/2020 0 14.5 187 ES-80A ES-80 7/23/2020 0 15.4 164 ES-81A ES-81 7/23/2020 0 12 67.6 ES-82A ES-82 7/23/2020 0 13 113 ES-83A ES-83 7/23/2020 0 11.4 104 ES-83B ES-83 7/23/2020 1 8.06 33.4 ES-84A ES-84 7/23/2020 0 16.5 332 ES-85A ES-85 7/23/2020 0 12.9 149 ES-86A ES-86 7/23/2020 0 13.6 125 ES-87A ES-87 7/23/2020 0 14.4 100 ES-88A ES-88 7/23/2020 0 11.5 56.6 ES-89A ES-89 7/23/2020 0 13.9 69.6 ES-90A ES-90 7/23/2020 0 21.8 257 50 500 283 2,207 Notes: mg/kg = milligrams per kilogram NA = not applicable Unrestricted Land Use Standards OU5 and OU6 Recreational Land Use Standards Table 3 (Continued….) Shallow Soil Characterization - Soil Analytical Results Olympia Hills Sample ID Analyte detected above the Salt Lake County Unrestricted Land Use Standards Analyte detected above the EPA Recreational Land Use Standards for OU-5, and OU-6 Exploration ID Collection Date Depth (top of sample) Arsenic (mg/kg) Lead (mg/kg) 20210351.001A/SLC22R147484 © 2022 Kleinfelder 7 December 6, 2022 www.kleinfelder.com 195 North 1950 West Mailing Address: P.O. Box 144840 Salt Lake City, UT 84114-4840 Telephone (801) 536-4100 ) 359-8853 (801) 536-4284 www.deq.utah.gov Printed on 100% recycled paper State of Utah SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor Department of Environmental Quality Kimberly D. Shelley Executive Director DIVISION OF ENVIRONMENTAL RESPONSE AND REMEDIATION Brent H. Everett Director ERRC-184-23 November 3, 2023 Mike Gronseth Senior Environmental Project Manager Kleinfelder 849 West Levoy Drive, Suite 200 Taylorsville, Utah 84123 RE: Addendum No. 1 to Final Soil Management Plan Bastian Ditch Shallow Flood Plain Soils Olympia Development, Unincorporated Salt Lake County, Utah Dear Mr. Gronseth: The Division of Environmental Response and Remediation (DERR) received the above referenced document, dated October 12, 2023. This letter presents an alternative procedure for addressing soils impacted with elevated concentrations of arsenic and/or lead at the Olympia Development located within the Kennecott Operable Unit 5. At the time the original Soil Management Plan (SMP) was prepared, the remediation plan proposed mixing shallow soils to reduce levels of lead and arsenic to concentrations below the Unrestricted Land Use Standard before placing the soil back into the excavation as fill material. Since the SMP was approved and site work began, the soils have increased in moisture content to the point where soil mixing will not be effective to meet remediation targets. Addendum No. 1 documents the following change to the originally approved SMP: The remediation plan for shallow soils will now include excavating the impacted soils and relocating these soils to parcels within the Olympia Development that are designated as open spaces or parks. Specifically, shallow soils within the Bastian Ditch floodplain with lead and/or arsenic concentrations greater than the Unrestricted Land Use Standards will be excavated from within the floodplain footprint and stockpiled on site for further testing. Page 2 The stockpiles will be sampled for laboratory analysis of total lead and arsenic concentrations to confirm compliance with the Recreational Land Use Standards. When laboratory analytical results indicate the stockpiled soils meet the Recreational Land Use Standards, the soils will be transported and spread on the ground surface within the areas designated as open spaces or parks. Approximately 25,000 cubic yards will be excavated, and characterization samples will be collected at a rate of one sample per 250 cubic yards. Each characterization sample will be composited from 10 aliquots. The post-removal ground surface will be field screened using an X-ray fluorescence analyzer and sampled to confirm removal of the impacted soil. Based on the review of the Addendum No.1 to Final Soil Management Plan Bastian Ditch Shallow Flood Plain Soils and the originally accepted SMP for the Bastian Ditch Shallow Flood Plain Soils, this addendum has been accepted by the DERR. Thank you for your submission to the DERR. If you have any questions, please contact me at (385) 391-8129. Sincerely, Mazie Cox, Project Manager Division of Environmental Response and Remediation MJC\lg ecc: Doug Young, SOJO118, LLC Corrine Hillard, Kleinfelder Hayley Shaffer, Salt Lake County Health Department Jessica Antezano, Salt Lake County Health Department Angela Dunn, MD, MPH, Executive Director, Salt Lake County Health Department 195 North 1950 West Mailing Address: P.O. Box 144840 Salt Lake City, UT 84114-4840 Telephone (801) 536-4100 ) 359-8853 (801) 536-4284 www.deq.utah.gov Printed on 100% recycled paper State of Utah SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor Department of Environmental Quality Kimberly D. Shelley Executive Director DIVISION OF ENVIRONMENTAL RESPONSE AND REMEDIATION Brent H. Everett Director ERRC-102-23 July 7, 2023 Mike Gronseth Senior Environmental Project Manager Kleinfelder 849 West Levoy Drive, Suite 200 Taylorsville, Utah 84123 Re: Soil Management Plan Bastian Ditch Shallow Flood Plain Soils Olympia Hills Development, Unincorporated Salt Lake County, Utah Dear Mr. Gronseth, The Division of Environmental Response and Remediation (DERR) received the document entitled Soil Management Plan Bastian Ditch Shallow Flood Plain Soils, dated June 29, 2023. The referenced document is a management plan for the shallow floodplain soils with elevated concentrations of lead and arsenic located on the Olympia Hills Development. Remediation will include soil grading and/or excavation and mechanical soil mixing. The goal of this project is the reduction of metals concentrations to below the Unrestricted Land Use Action Levels. The Olympia Hills Development is approximately 900 acres. The DERR understands that the Soil Management Plan Bastian Ditch Shallow Flood Plain Soils Project will address contamination on a portion of this land and that further management plans for separate areas of contaminated soils are to follow as development continues. The DERR has reviewed and agrees with the approach outlined in the Soil Management Plan for the Bastian Ditch Shallow Flood Plain Soils. Thank you for your submission to the DERR. If you have any questions, please contact me at (385) 391-8129. Sincerely, Mazie Cox, Project Manager Division of Environmental Response and Remediation Page 2 MJC\lg ecc: Corrine Hillard, Kleinfelder Hayley Shaffer, Salt Lake County Health Department Jessica Antezano, Salt Lake County Health Department Angela Dunn, MD, MPH, Executive Director, Salt Lake County Health Department Ap p e n d i x B 24001739.001A/SLC24R174875 Page B1 of B4 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com KLEINFELDER, INC. STANDARD OPERATING PROCEDURES EQUIPMENT DECONTAMINATION Decontamination procedures will be used to prevent cross-contamination of samples. Decontamination procedures will be established for each site based on the contaminants of concern to be sampled and the degree of hazard associated with the site. Decontamination procedures will be reviewed and approved by the Site Health and Safety Manager. The following procedure contains standard decontamination protocols, suitable for most sites. All non-disposable sampling equipment will be decontaminated prior to use and between samples as follows: •Remove Gross Contaminants – Equipment will be scrubbed using a water/detergent solution and stiff brush until visible contaminants are removed. The water will be changed as necessary, daily at a minimum. •Wash with Alconox soap or similar detergent – An Alconox wash will be prepared as indicated on the product labeling, typically mixing 1 to 1.5 tablespoons of Alconox per gallon of water. The water will be changed as necessary, daily at a minimum. •Water Rinse – Equipment will be rinsed with clear potable water. The water will be changed as necessary, daily at a minimum. •Deionized Water Rinse – Deionized water will be used as a final rinse for all equipment. The water may be poured or sprayed, or the equipment submerged. •Gloves – Sampling personnel will change into a new pair of chemical-resistant gloves between samples and discard the previous pair. The backhoe bucket will be decontaminated prior to use using a high-pressure washer. Decontamination water will be dispersed on the ground surface and allowed to infiltrate near the source. Between trench/sample locations, the backhoe bucket will be shaken and/or swept to remove loose dirt. SAMPLE COLLECTION Sample containers, preservation techniques and holding times will be consistent with EPA SW-846 guidelines. Soil samples to be analyzed for metals will be placed in plastic Ziplock bags. No preservation or sample cooling is necessary for lead and arsenic analysis and the holding time is 6 months. Sample intervals will be selected based on the project sampling plan. Soil samples will be collected using disposable plastic or decontaminated hand tools. These tools may include one or more of the following: •Disposable plastic spoon, trowel or cup •Stainless steel spoon, trowel or cup 24001739.001A/SLC24R174875 Page B2 of B4 Nivember 19, 2024 © 2024 Kleinfelder www.kleinfelder.com •Clean, disposable gloves (vinyl, latex, nitrile) Only disposable plastic or decontaminated stainless-steel tools will be used to sample the material. Reusable sampling tools will be decontaminated prior to use following the procedures described in the “Equipment Decontamination” SOP. Grab Samples A soil sample will be collected at the selected depths with a spoon, trowel, or chemical-resistant gloves. The material will be screened with the appropriate direct reading instrument, such as a PID or XRF, and the reading will be recorded on the log form or in the field notebook. The portion of the sample collected for chemical analysis will be transferred immediately into the appropriate sample container using decontaminated equipment, clean disposable spoons or equipment, or by hand wearing new disposable chemical-resistant gloves. Avoid gravels and rock fragments when filling soil sample containers. If the sample is to be analyzed for volatile organics, the container will be completely filled with soil to minimize headspace. The container will be labeled appropriately and immediately stored in an iced cooler to maintain a temperature of 4° Celsius (if cooling is required for the analytical method). Composite Soil Samples Composite samples will be prepared by placing equal amounts of soil in a stainless-steel bowl or clean plastic bag using a stainless-steel spoon or by hand wearing new chemical-resistant gloves. The composite sample will be comprised of a minimum of five aliquots. The sample will be homogenized with a stainless-steel spoon or gloved hand. The homogenized soil will be packaged in a laboratory- supplied sample container, labeled appropriately, and placed in an iced cooler to maintain a temperature of 4° Celsius, if appropriate for the analytical method. Enough soil will be collected for each sample to allow for additional laboratory analysis of lead and arsenic if necessary. The samples will be held at the laboratory for 30 days after analysis to accommodate possible additional analysis. Soil sample material will be homogenized prior to analysis. The sample will be placed in a new, re- sealable plastic bag. Large debris and rocks will be removed, and the sample will be homogenized by kneading the soil within the bag. Clay soils, if encountered, will be thoroughly mixed to the extent practicable. Sample Identification and Labeling To prevent misidentification of samples each sample container will be labeled with indelible ink. The following information will be recorded on the sample container: •Project name or number •Sample identification number •Sample depth •Date and time of collection Samples will be transported in laboratory-supplied coolers and stored on ice to maintain a temperature between 2 and 6 degree Centigrade, if sample cooling is required for the analytical method. 24001739.001A/SLC24R174875 Page B3 of B4 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com DOCUMENTATION AND SAMPLE HANDLING Field Records Field activities will be recorded on a Daily Field Report (DFR) form or in a field logbook by on-site personnel during all sampling activities. All notes/comments and data generated during the project will be recorded on the DFR or logbook. The general information recorded for each day’s sampling event includes: •Date •Name of overall sampling event and project number •Sampling personnel •Climatic conditions •Field equipment and subcontractor personnel •Daily operations and observations •Any deviation from the sampling protocol will be formally noted along with the names of visiting personnel and any unusual circumstances pertinent to the sampling effort. Sample Control Log For each sample collected, the following will be recorded in a sample control log or DFR: •Sample identification number •Location with measurements •Sample time •Sample type (grab, composite, etc.) •Field observations Map or diagram Boring and Trench Logs Subsurface conditions encountered will be described in the boring or trench log using the unified soil classification system. The logs will include the following, as applicable: •GPS Coordinate •Color/discoloration •Sample location/depth •Drawing of the trench dimensions and observations •Any other observations pertinent to the sampling effort Photographs Photographs may be taken of the trenches and other investigation features as deemed appropriate to document the field activities. A photograph log will be maintained on the DFR. The log will contain the following information: •Photograph identification number 24001739.001A/SLC24R174875 Page B4 of B4 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com •Identification of site •Date of photograph Chain of Custody Sample chain of custody will be maintained for all samples collected. A chain of custody record will be filled out and will accompany every set of samples in order to establish the documentation necessary to trace sample possession from the time of collection. Samples will remain in the possession of the sampler at all times, or in a locked facility until delivery to the analytical laboratory. Ap p e n d i x C 24001739.001A/SLC24R174875 November 19, 2024 © 2024 Kleinfelder www.kleinfelder.com APPENDIX C LABORATORY ANALYTICAL REPORTS AND CHAIN-OF-CUSTODY DOCUMENTATION CONTAMINATED SOIL REMOVAL REPORT BASTIAN DITCH SHALLOW FLOOD PLAIN SOILS OLYMPIA DEVELOPMENT UNINCORPORATED SALT LAKE COUNTY UTAH KLEINFELDER PROJECT NO. 24001739.001A November 15, 2024 Note: The Olympia Development shallow soil removal action is ongoing, and this Appendix only includes laboratory data from samples collected from the boundaries of the Site described herein. ANALYTICAL REPORT March 15, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1713436 Samples Received:03/08/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: March 15, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 1 of 53 March 15, 2024 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 1 of 53 TABLE OF CONTENTSTABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 4 Cn: Case Narrative 9 Sr: Sample Results 10 SP-105_030624 L1713436-01 10 SP-106_030624 L1713436-02 11 SP-107_030624 L1713436-03 12 SP-108_030624 L1713436-04 13 SP-109_030624 L1713436-05 14 SP-110_030624 L1713436-06 15 SP-111_030624 L1713436-07 16 SP-112_030624 L1713436-08 17 SP-113_030624 L1713436-09 18 SP-114_030624 L1713436-10 19 SP-115_030624 L1713436-11 20 SP-116_030624 L1713436-12 21 SP-117_030624 L1713436-13 22 SP-118_030624 L1713436-14 23 SP-119_030624 L1713436-15 24 SP-120_030624 L1713436-16 25 SP-121_030624 L1713436-17 26 SP-122_030624 L1713436-18 27 SP-123_030624 L1713436-19 28 SP-124_030624 L1713436-20 29 SP-125_030624 L1713436-21 30 SP-126_030624 L1713436-22 31 SP-127_030624 L1713436-23 32 SP-128_030624 L1713436-24 33 SP-129_030624 L1713436-25 34 SP-130_030624 L1713436-26 35 SP-131_030624 L1713436-27 36 SP-132_030624 L1713436-28 37 SP-133_030624 L1713436-29 38 SP-134_030624 L1713436-30 39 SP-135_030624 L1713436-31 40 Qc: Quality Control Summary 41 Total Solids by Method 2540 G-2011 41 Metals (ICP) by Method 6010B 45 Gl: Glossary of Terms 48 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 2 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 2 of 53 Al: Accreditations & Locations 49 Sc: Sample Chain of Custody 50 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 3 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 3 of 53 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-105_030624 L1713436-01 Solid Annie Matzke 03/06/24 10:35 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243860 1 03/12/24 10:41 03/12/24 10:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243281 1 03/10/24 07:21 03/10/24 17:57 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-106_030624 L1713436-02 Solid Annie Matzke 03/06/24 10:45 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243860 1 03/12/24 10:41 03/12/24 10:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243281 1 03/10/24 07:21 03/10/24 17:58 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-107_030624 L1713436-03 Solid Annie Matzke 03/06/24 10:59 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243860 1 03/12/24 10:41 03/12/24 10:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243281 1 03/10/24 07:21 03/10/24 18:00 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-108_030624 L1713436-04 Solid Annie Matzke 03/06/24 10:59 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243860 1 03/12/24 10:41 03/12/24 10:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243281 1 03/10/24 07:21 03/10/24 18:02 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-109_030624 L1713436-05 Solid Annie Matzke 03/06/24 11:13 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243860 1 03/12/24 10:41 03/12/24 10:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 20:44 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-110_030624 L1713436-06 Solid Annie Matzke 03/06/24 11:16 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243860 1 03/12/24 10:41 03/12/24 10:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 20:47 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-111_030624 L1713436-07 Solid Annie Matzke 03/06/24 11:18 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243860 1 03/12/24 10:41 03/12/24 10:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 20:50 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 4 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 4 of 53 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-112_030624 L1713436-08 Solid Annie Matzke 03/06/24 12:27 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243860 1 03/12/24 10:41 03/12/24 10:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 20:53 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-113_030624 L1713436-09 Solid Annie Matzke 03/06/24 12:26 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243860 1 03/12/24 10:41 03/12/24 10:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 20:55 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-114_030624 L1713436-10 Solid Annie Matzke 03/06/24 12:32 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243860 1 03/12/24 10:41 03/12/24 10:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 20:58 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-115_030624 L1713436-11 Solid Annie Matzke 03/06/24 12:39 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243861 1 03/12/24 10:32 03/12/24 10:38 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 21:01 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-116_030624 L1713436-12 Solid Annie Matzke 03/06/24 12:42 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243861 1 03/12/24 10:32 03/12/24 10:38 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 21:03 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-117_030624 L1713436-13 Solid Annie Matzke 03/06/24 12:44 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243861 1 03/12/24 10:32 03/12/24 10:38 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 21:06 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-118_030624 L1713436-14 Solid Annie Matzke 03/06/24 13:08 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243861 1 03/12/24 10:32 03/12/24 10:38 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 21:15 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 5 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 5 of 53 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-119_030624 L1713436-15 Solid Annie Matzke 03/06/24 13:09 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243861 1 03/12/24 10:32 03/12/24 10:38 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 21:17 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-120_030624 L1713436-16 Solid Annie Matzke 03/06/24 13:15 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243861 1 03/12/24 10:32 03/12/24 10:38 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 20:13 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-121_030624 L1713436-17 Solid Annie Matzke 03/06/24 13:22 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243861 1 03/12/24 10:32 03/12/24 10:38 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 21:20 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-122_030624 L1713436-18 Solid Annie Matzke 03/06/24 13:25 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243861 1 03/12/24 10:32 03/12/24 10:38 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 21:23 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-123_030624 L1713436-19 Solid Annie Matzke 03/06/24 13:22 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243861 1 03/12/24 10:32 03/12/24 10:38 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 21:26 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-124_030624 L1713436-20 Solid Annie Matzke 03/06/24 14:37 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243861 1 03/12/24 10:32 03/12/24 10:38 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243295 1 03/11/24 07:06 03/11/24 21:29 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-125_030624 L1713436-21 Solid Annie Matzke 03/06/24 14:42 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243862 1 03/12/24 11:37 03/12/24 11:47 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:18 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 6 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 6 of 53 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-126_030624 L1713436-22 Solid Annie Matzke 03/06/24 14:47 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243862 1 03/12/24 11:37 03/12/24 11:47 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:21 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-127_030624 L1713436-23 Solid Annie Matzke 03/06/24 14:50 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243862 1 03/12/24 11:37 03/12/24 11:47 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:24 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-128_030624 L1713436-24 Solid Annie Matzke 03/06/24 14:55 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243862 1 03/12/24 11:37 03/12/24 11:47 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:27 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-129_030624 L1713436-25 Solid Annie Matzke 03/06/24 14:55 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243862 1 03/12/24 11:37 03/12/24 11:47 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:29 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-130_030624 L1713436-26 Solid Annie Matzke 03/06/24 15:01 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243862 1 03/12/24 11:37 03/12/24 11:47 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:38 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-131_030624 L1713436-27 Solid Annie Matzke 03/06/24 15:00 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243862 1 03/12/24 11:37 03/12/24 11:47 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:41 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-132_030624 L1713436-28 Solid Annie Matzke 03/06/24 15:10 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243862 1 03/12/24 11:37 03/12/24 11:47 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:43 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 7 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 7 of 53 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-133_030624 L1713436-29 Solid Annie Matzke 03/06/24 15:10 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243862 1 03/12/24 11:37 03/12/24 11:47 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:46 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-134_030624 L1713436-30 Solid Annie Matzke 03/06/24 15:17 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243862 1 03/12/24 11:37 03/12/24 11:47 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:49 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-135_030624 L1713436-31 Solid Annie Matzke 03/06/24 15:17 03/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2243863 1 03/12/24 11:50 03/12/24 12:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2243299 1 03/10/24 07:23 03/10/24 17:52 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 8 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 8 of 53 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 9 of 53 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 9 of 53 SAMPLE RESULTS - 01 L1713436 SP-105_030624 Collected date/time: 03/06/24 10:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.2 1 03/12/2024 10:49 WG2243860 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.0 2.32 1 03/10/2024 17:57 WG2243281 Lead 81.4 0.580 1 03/10/2024 17:57 WG2243281 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 10 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 10 of 53 SAMPLE RESULTS - 02 L1713436 SP-106_030624 Collected date/time: 03/06/24 10:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.2 1 03/12/2024 10:49 WG2243860 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.4 2.32 1 03/10/2024 17:58 WG2243281 Lead 236 0.580 1 03/10/2024 17:58 WG2243281 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 11 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 11 of 53 SAMPLE RESULTS - 03 L1713436 SP-107_030624 Collected date/time: 03/06/24 10:59 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.1 1 03/12/2024 10:49 WG2243860 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 19.4 2.44 1 03/10/2024 18:00 WG2243281 Lead 297 0.609 1 03/10/2024 18:00 WG2243281 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 12 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 12 of 53 SAMPLE RESULTS - 04 L1713436 SP-108_030624 Collected date/time: 03/06/24 10:59 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.5 1 03/12/2024 10:49 WG2243860 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 20.5 2.40 1 03/10/2024 18:02 WG2243281 Lead 305 0.599 1 03/10/2024 18:02 WG2243281 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 13 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 13 of 53 SAMPLE RESULTS - 05 L1713436 SP-109_030624 Collected date/time: 03/06/24 11:13 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.2 1 03/12/2024 10:49 WG2243860 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 17.5 2.43 1 03/11/2024 20:44 WG2243295 Lead 124 0.608 1 03/11/2024 20:44 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 14 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 14 of 53 SAMPLE RESULTS - 06 L1713436 SP-110_030624 Collected date/time: 03/06/24 11:16 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.9 1 03/12/2024 10:49 WG2243860 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.9 2.33 1 03/11/2024 20:47 WG2243295 Lead 248 0.582 1 03/11/2024 20:47 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 15 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 15 of 53 SAMPLE RESULTS - 07 L1713436 SP-111_030624 Collected date/time: 03/06/24 11:18 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.1 1 03/12/2024 10:49 WG2243860 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.4 2.38 1 03/11/2024 20:50 WG2243295 Lead 358 0.594 1 03/11/2024 20:50 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 16 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 16 of 53 SAMPLE RESULTS - 08 L1713436 SP-112_030624 Collected date/time: 03/06/24 12:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.7 1 03/12/2024 10:49 WG2243860 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.4 2.39 1 03/11/2024 20:53 WG2243295 Lead 363 0.597 1 03/11/2024 20:53 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 17 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 17 of 53 SAMPLE RESULTS - 09 L1713436 SP-113_030624 Collected date/time: 03/06/24 12:26 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.9 1 03/12/2024 10:49 WG2243860 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.2 2.38 1 03/11/2024 20:55 WG2243295 Lead 403 0.596 1 03/11/2024 20:55 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 18 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 18 of 53 SAMPLE RESULTS - 10 L1713436 SP-114_030624 Collected date/time: 03/06/24 12:32 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.5 1 03/12/2024 10:49 WG2243860 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.47 2.21 1 03/11/2024 20:58 WG2243295 Lead 153 0.552 1 03/11/2024 20:58 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 19 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 19 of 53 SAMPLE RESULTS - 11 L1713436 SP-115_030624 Collected date/time: 03/06/24 12:39 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.4 1 03/12/2024 10:38 WG2243861 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.3 2.37 1 03/11/2024 21:01 WG2243295 Lead 98.1 0.592 1 03/11/2024 21:01 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 20 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 20 of 53 SAMPLE RESULTS - 12 L1713436 SP-116_030624 Collected date/time: 03/06/24 12:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.9 1 03/12/2024 10:38 WG2243861 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.2 2.33 1 03/11/2024 21:03 WG2243295 Lead 132 0.582 1 03/11/2024 21:03 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 21 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 21 of 53 SAMPLE RESULTS - 13 L1713436 SP-117_030624 Collected date/time: 03/06/24 12:44 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.9 1 03/12/2024 10:38 WG2243861 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.66 2.36 1 03/11/2024 21:06 WG2243295 Lead 103 0.589 1 03/11/2024 21:06 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 22 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 22 of 53 SAMPLE RESULTS - 14 L1713436 SP-118_030624 Collected date/time: 03/06/24 13:08 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.9 1 03/12/2024 10:38 WG2243861 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.5 2.36 1 03/11/2024 21:15 WG2243295 Lead 126 0.589 1 03/11/2024 21:15 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 23 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 23 of 53 SAMPLE RESULTS - 15 L1713436 SP-119_030624 Collected date/time: 03/06/24 13:09 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.0 1 03/12/2024 10:38 WG2243861 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 7.79 2.30 1 03/11/2024 21:17 WG2243295 Lead 42.0 0.575 1 03/11/2024 21:17 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 24 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 24 of 53 SAMPLE RESULTS - 16 L1713436 SP-120_030624 Collected date/time: 03/06/24 13:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.2 1 03/12/2024 10:38 WG2243861 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.46 2.27 1 03/11/2024 20:13 WG2243295 Lead 68.2 0.567 1 03/11/2024 20:13 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 25 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 25 of 53 SAMPLE RESULTS - 17 L1713436 SP-121_030624 Collected date/time: 03/06/24 13:22 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.7 1 03/12/2024 10:38 WG2243861 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.9 2.33 1 03/11/2024 21:20 WG2243295 Lead 123 0.583 1 03/11/2024 21:20 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 26 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 26 of 53 SAMPLE RESULTS - 18 L1713436 SP-122_030624 Collected date/time: 03/06/24 13:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.6 1 03/12/2024 10:38 WG2243861 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.1 2.42 1 03/11/2024 21:23 WG2243295 Lead 436 0.605 1 03/11/2024 21:23 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 27 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 27 of 53 SAMPLE RESULTS - 19 L1713436 SP-123_030624 Collected date/time: 03/06/24 13:22 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.7 1 03/12/2024 10:38 WG2243861 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.0 2.36 1 03/11/2024 21:26 WG2243295 Lead 171 0.590 1 03/11/2024 21:26 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 28 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 28 of 53 SAMPLE RESULTS - 20 L1713436 SP-124_030624 Collected date/time: 03/06/24 14:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.4 1 03/12/2024 10:38 WG2243861 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.6 2.37 1 03/11/2024 21:29 WG2243295 Lead 223 0.592 1 03/11/2024 21:29 WG2243295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 29 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 29 of 53 SAMPLE RESULTS - 21 L1713436 SP-125_030624 Collected date/time: 03/06/24 14:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.4 1 03/12/2024 11:47 WG2243862 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.7 2.40 1 03/10/2024 17:18 WG2243299 Lead 283 0.600 1 03/10/2024 17:18 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 30 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 30 of 53 SAMPLE RESULTS - 22 L1713436 SP-126_030624 Collected date/time: 03/06/24 14:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.3 1 03/12/2024 11:47 WG2243862 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 15.0 2.35 1 03/10/2024 17:21 WG2243299 Lead 106 0.586 1 03/10/2024 17:21 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 31 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 31 of 53 SAMPLE RESULTS - 23 L1713436 SP-127_030624 Collected date/time: 03/06/24 14:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.4 1 03/12/2024 11:47 WG2243862 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 22.8 2.40 1 03/10/2024 17:24 WG2243299 Lead 242 0.599 1 03/10/2024 17:24 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 32 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 32 of 53 SAMPLE RESULTS - 24 L1713436 SP-128_030624 Collected date/time: 03/06/24 14:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.8 1 03/12/2024 11:47 WG2243862 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 20.4 2.39 1 03/10/2024 17:27 WG2243299 Lead 306 0.597 1 03/10/2024 17:27 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 33 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 33 of 53 SAMPLE RESULTS - 25 L1713436 SP-129_030624 Collected date/time: 03/06/24 14:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.8 1 03/12/2024 11:47 WG2243862 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 81.5 2.41 1 03/10/2024 17:29 WG2243299 Lead 2760 0.604 1 03/10/2024 17:29 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 34 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 34 of 53 SAMPLE RESULTS - 26 L1713436 SP-130_030624 Collected date/time: 03/06/24 15:01 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.7 1 03/12/2024 11:47 WG2243862 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 21.7 2.39 1 03/10/2024 17:38 WG2243299 Lead 330 0.598 1 03/10/2024 17:38 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 35 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 35 of 53 SAMPLE RESULTS - 27 L1713436 SP-131_030624 Collected date/time: 03/06/24 15:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.3 1 03/12/2024 11:47 WG2243862 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.4 2.37 1 03/10/2024 17:41 WG2243299 Lead 232 0.593 1 03/10/2024 17:41 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 36 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 36 of 53 SAMPLE RESULTS - 28 L1713436 SP-132_030624 Collected date/time: 03/06/24 15:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.5 1 03/12/2024 11:47 WG2243862 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.8 2.34 1 03/10/2024 17:43 WG2243299 Lead 85.0 0.585 1 03/10/2024 17:43 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 37 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 37 of 53 SAMPLE RESULTS - 29 L1713436 SP-133_030624 Collected date/time: 03/06/24 15:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.6 1 03/12/2024 11:47 WG2243862 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.9 2.36 1 03/10/2024 17:46 WG2243299 Lead 167 0.591 1 03/10/2024 17:46 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 38 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 38 of 53 SAMPLE RESULTS - 30 L1713436 SP-134_030624 Collected date/time: 03/06/24 15:17 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.6 1 03/12/2024 11:47 WG2243862 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 32.3 2.21 1 03/10/2024 17:49 WG2243299 Lead 719 0.552 1 03/10/2024 17:49 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 39 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 39 of 53 SAMPLE RESULTS - 31 L1713436 SP-135_030624 Collected date/time: 03/06/24 15:17 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.2 1 03/12/2024 12:05 WG2243863 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 26.9 2.35 1 03/10/2024 17:52 WG2243299 Lead 607 0.587 1 03/10/2024 17:52 WG2243299 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 40 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 40 of 53 QUALITY CONTROL SUMMARYWG2243860 Total Solids by Method 2540 G-2011 L1713436-01,02,03,04,05,06,07,08,09,10 Method Blank (MB) (MB) R4044779-1 03/12/24 10:49 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1713436-05 Original Sample (OS) • Duplicate (DUP) (OS) L1713436-05 03/12/24 10:49 • (DUP) R4044779-3 03/12/24 10:49 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 82.2 82.9 1 0.878 10 Laboratory Control Sample (LCS) (LCS) R4044779-2 03/12/24 10:49 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 41 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 41 of 53 QUALITY CONTROL SUMMARYWG2243861 Total Solids by Method 2540 G-2011 L1713436-11,12,13,14,15,16,17,18,19,20 Method Blank (MB) (MB) R4044773-1 03/12/24 10:38 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00400 L1713436-15 Original Sample (OS) • Duplicate (DUP) (OS) L1713436-15 03/12/24 10:38 • (DUP) R4044773-3 03/12/24 10:38 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 87.0 85.3 1 1.98 10 Laboratory Control Sample (LCS) (LCS) R4044773-2 03/12/24 10:38 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 42 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 42 of 53 QUALITY CONTROL SUMMARYWG2243862 Total Solids by Method 2540 G-2011 L1713436-21,22,23,24,25,26,27,28,29,30 Method Blank (MB) (MB) R4044790-1 03/12/24 11:47 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1713436-25 Original Sample (OS) • Duplicate (DUP) (OS) L1713436-25 03/12/24 11:47 • (DUP) R4044790-3 03/12/24 11:47 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 82.8 83.0 1 0.177 10 Laboratory Control Sample (LCS) (LCS) R4044790-2 03/12/24 11:47 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 43 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 43 of 53 QUALITY CONTROL SUMMARYWG2243863 Total Solids by Method 2540 G-2011 L1713436-31 Method Blank (MB) (MB) R4044794-1 03/12/24 12:05 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1713468-06 Original Sample (OS) • Duplicate (DUP) (OS) L1713468-06 03/12/24 12:05 • (DUP) R4044794-3 03/12/24 12:05 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 90.7 91.1 1 0.408 10 Laboratory Control Sample (LCS) (LCS) R4044794-2 03/12/24 12:05 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 44 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 44 of 53 QUALITY CONTROL SUMMARYWG2243281 Metals (ICP) by Method 6010B L1713436-01,02,03,04 Method Blank (MB) (MB) R4043785-1 03/10/24 17:13 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4043785-2 03/10/24 17:15 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 89.0 89.0 80.0-120 Lead 100 91.6 91.6 80.0-120 L1713125-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1713125-01 03/10/24 17:17 • (MS) R4043785-5 03/10/24 17:22 • (MSD) R4043785-6 03/10/24 17:23 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 3.88 87.9 94.4 84.0 90.6 1 75.0-125 7.22 20 Lead 100 56.6 152 158 95.2 101 1 75.0-125 3.73 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 45 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 45 of 53 QUALITY CONTROL SUMMARYWG2243295 Metals (ICP) by Method 6010B L1713436-05,06,07,08,09,10,11,12,13,14,15,16,17,18,19,20 Method Blank (MB) (MB) R4044188-1 03/11/24 20:08 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4044188-2 03/11/24 20:10 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 96.2 96.2 80.0-120 Lead 100 91.9 91.9 80.0-120 L1713436-16 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1713436-16 03/11/24 20:13 • (MS) R4044188-5 03/11/24 20:21 • (MSD) R4044188-6 03/11/24 20:24 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 113 8.46 86.7 119 69.0 97.8 1 75.0-125 J6 J3 31.8 20 Lead 113 68.2 141 324 64.6 226 1 75.0-125 J6 J3 J5 78.5 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 46 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 46 of 53 QUALITY CONTROL SUMMARYWG2243299 Metals (ICP) by Method 6010B L1713436-21,22,23,24,25,26,27,28,29,30,31 Method Blank (MB) (MB) R4043780-1 03/10/24 16:31 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4043780-2 03/10/24 16:34 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 89.6 89.6 80.0-120 Lead 100 89.1 89.1 80.0-120 L1713373-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1713373-02 03/10/24 16:37 • (MS) R4043780-5 03/10/24 16:45 • (MSD) R4043780-6 03/10/24 16:47 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg %%%%% Arsenic 111 ND 111 109 99.4 98.1 1 75.0-125 1.34 20 Lead 111 4.66 119 116 102 99.8 1 75.0-125 2.50 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 47 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 47 of 53 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J3 The associated batch QC was outside the established quality control range for precision. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 48 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 48 of 53 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 09:48 49 of 53 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1713436 03/15/24 16:19 49 of 53 ANALYTICAL REPORT March 28, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1717694 Samples Received:03/22/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: March 28, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 1 of 39 March 28, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 1 of 39 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-136_031424 L1717694-01 7 SP-137_031424 L1717694-02 8 SP-138_031424 L1717694-03 9 SP-139_031424 L1717694-04 10 SP-140_031824 L1717694-05 11 SP-141_031824 L1717694-06 12 SP-142_031824 L1717694-07 13 SP-143_031824 L1717694-08 14 SP-144_031824 L1717694-09 15 SP-145_031824 L1717694-10 16 SP-146_031824 L1717694-11 17 SP-147_031824 L1717694-12 18 SP-148_031824 L1717694-13 19 SP-149_031924 L1717694-14 20 SP-150_031924 L1717694-15 21 SP-151_031924 L1717694-16 22 SP-152_031924 L1717694-17 23 SP-153_031924 L1717694-18 24 SP-DUP-1 L1717694-19 25 SP-DUP-2 L1717694-20 26 CS-53_032024 L1717694-21 27 Qc: Quality Control Summary 28 Total Solids by Method 2540 G-2011 28 Metals (ICP) by Method 6010B 31 Gl: Glossary of Terms 34 Al: Accreditations & Locations 35 Sc: Sample Chain of Custody 36 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 2 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 2 of 39 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-136_031424 L1717694-01 Solid Annie Matzke 03/14/24 09:38 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252447 1 03/23/24 16:38 03/23/24 16:55 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252908 1 03/26/24 05:48 03/26/24 15:50 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-137_031424 L1717694-02 Solid Annie Matzke 03/14/24 09:46 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252447 1 03/23/24 16:38 03/23/24 16:55 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252908 1 03/26/24 05:48 03/26/24 15:53 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-138_031424 L1717694-03 Solid Annie Matzke 03/14/24 09:52 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252447 1 03/23/24 16:38 03/23/24 16:55 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252908 1 03/26/24 05:48 03/26/24 15:56 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-139_031424 L1717694-04 Solid Annie Matzke 03/14/24 10:00 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252447 1 03/23/24 16:38 03/23/24 16:55 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 19:46 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-140_031824 L1717694-05 Solid Annie Matzke 03/18/24 13:02 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252447 1 03/23/24 16:38 03/23/24 16:55 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 19:49 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-141_031824 L1717694-06 Solid Annie Matzke 03/18/24 12:59 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252447 1 03/23/24 16:38 03/23/24 16:55 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 19:52 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-142_031824 L1717694-07 Solid Annie Matzke 03/18/24 12:56 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252448 1 03/23/24 15:27 03/23/24 15:41 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:00 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 3 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 3 of 39 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-143_031824 L1717694-08 Solid Annie Matzke 03/18/24 12:53 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252448 1 03/23/24 15:27 03/23/24 15:41 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:02 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-144_031824 L1717694-09 Solid Annie Matzke 03/18/24 12:50 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252448 1 03/23/24 15:27 03/23/24 15:41 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:05 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-145_031824 L1717694-10 Solid Annie Matzke 03/18/24 13:49 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252448 1 03/23/24 15:27 03/23/24 15:41 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:08 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-146_031824 L1717694-11 Solid Annie Matzke 03/18/24 13:43 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252448 1 03/23/24 15:27 03/23/24 15:41 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:10 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-147_031824 L1717694-12 Solid Annie Matzke 03/18/24 13:39 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252448 1 03/23/24 15:27 03/23/24 15:41 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:13 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-148_031824 L1717694-13 Solid Annie Matzke 03/18/24 13:36 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252448 1 03/23/24 15:27 03/23/24 15:41 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:16 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-149_031924 L1717694-14 Solid Annie Matzke 03/19/24 12:33 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252448 1 03/23/24 15:27 03/23/24 15:41 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:18 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 4 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 4 of 39 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-150_031924 L1717694-15 Solid Annie Matzke 03/19/24 12:37 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252448 1 03/23/24 15:27 03/23/24 15:41 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:21 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-151_031924 L1717694-16 Solid Annie Matzke 03/19/24 12:41 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252448 1 03/23/24 15:27 03/23/24 15:41 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252911 1 03/25/24 13:50 03/26/24 10:17 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-152_031924 L1717694-17 Solid Annie Matzke 03/19/24 12:50 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252449 1 03/23/24 15:06 03/23/24 15:20 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:24 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-153_031924 L1717694-18 Solid Annie Matzke 03/19/24 13:15 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252449 1 03/23/24 15:06 03/23/24 15:20 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:32 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-1 L1717694-19 Solid Annie Matzke 03/18/24 16:00 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252449 1 03/23/24 15:06 03/23/24 15:20 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:35 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-2 L1717694-20 Solid Annie Matzke 03/19/24 17:00 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252449 1 03/23/24 15:06 03/23/24 15:20 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:37 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-53_032024 L1717694-21 Solid Annie Matzke 03/20/24 13:30 03/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2252449 1 03/23/24 15:06 03/23/24 15:20 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2252906 1 03/26/24 22:33 03/27/24 20:40 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 5 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 5 of 39 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 6 of 39 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 6 of 39 SAMPLE RESULTS - 01 L1717694 SP-136_031424 Collected date/time: 03/14/24 09:38 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.7 1 03/23/2024 16:55 WG2252447 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 26.1 2.42 1 03/26/2024 15:50 WG2252908 Lead 463 0.605 1 03/26/2024 15:50 WG2252908 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 7 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 7 of 39 SAMPLE RESULTS - 02 L1717694 SP-137_031424 Collected date/time: 03/14/24 09:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 81.9 1 03/23/2024 16:55 WG2252447 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 21.2 2.44 1 03/26/2024 15:53 WG2252908 Lead 225 0.610 1 03/26/2024 15:53 WG2252908 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 8 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 8 of 39 SAMPLE RESULTS - 03 L1717694 SP-138_031424 Collected date/time: 03/14/24 09:52 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.2 1 03/23/2024 16:55 WG2252447 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 17.8 2.43 1 03/26/2024 15:56 WG2252908 Lead 186 0.609 1 03/26/2024 15:56 WG2252908 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 9 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 9 of 39 SAMPLE RESULTS - 04 L1717694 SP-139_031424 Collected date/time: 03/14/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.7 1 03/23/2024 16:55 WG2252447 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 21.9 2.39 1 03/27/2024 19:46 WG2252906 Lead 357 0.597 1 03/27/2024 19:46 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 10 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 10 of 39 SAMPLE RESULTS - 05 L1717694 SP-140_031824 Collected date/time: 03/18/24 13:02 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.7 1 03/23/2024 16:55 WG2252447 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 42.0 2.11 1 03/27/2024 19:49 WG2252906 Lead 1030 0.528 1 03/27/2024 19:49 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 11 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 11 of 39 SAMPLE RESULTS - 06 L1717694 SP-141_031824 Collected date/time: 03/18/24 12:59 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.3 1 03/23/2024 16:55 WG2252447 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 22.9 2.34 1 03/27/2024 19:52 WG2252906 Lead 418 0.586 1 03/27/2024 19:52 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 12 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 12 of 39 SAMPLE RESULTS - 07 L1717694 SP-142_031824 Collected date/time: 03/18/24 12:56 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.4 1 03/23/2024 15:41 WG2252448 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 19.1 2.43 1 03/27/2024 20:00 WG2252906 Lead 190 0.607 1 03/27/2024 20:00 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 13 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 13 of 39 SAMPLE RESULTS - 08 L1717694 SP-143_031824 Collected date/time: 03/18/24 12:53 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.1 1 03/23/2024 15:41 WG2252448 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 17.4 2.35 1 03/27/2024 20:02 WG2252906 Lead 303 0.587 1 03/27/2024 20:02 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 14 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 14 of 39 SAMPLE RESULTS - 09 L1717694 SP-144_031824 Collected date/time: 03/18/24 12:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.9 1 03/23/2024 15:41 WG2252448 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 28.6 2.41 1 03/27/2024 20:05 WG2252906 Lead 405 0.603 1 03/27/2024 20:05 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 15 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 15 of 39 SAMPLE RESULTS - 10 L1717694 SP-145_031824 Collected date/time: 03/18/24 13:49 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.6 1 03/23/2024 15:41 WG2252448 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.9 2.36 1 03/27/2024 20:08 WG2252906 Lead 153 0.591 1 03/27/2024 20:08 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 16 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 16 of 39 SAMPLE RESULTS - 11 L1717694 SP-146_031824 Collected date/time: 03/18/24 13:43 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.0 1 03/23/2024 15:41 WG2252448 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 25.9 2.38 1 03/27/2024 20:10 WG2252906 Lead 359 0.595 1 03/27/2024 20:10 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 17 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 17 of 39 SAMPLE RESULTS - 12 L1717694 SP-147_031824 Collected date/time: 03/18/24 13:39 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.6 1 03/23/2024 15:41 WG2252448 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 31.5 2.36 1 03/27/2024 20:13 WG2252906 Lead 617 0.591 1 03/27/2024 20:13 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 18 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 18 of 39 SAMPLE RESULTS - 13 L1717694 SP-148_031824 Collected date/time: 03/18/24 13:36 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.2 1 03/23/2024 15:41 WG2252448 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 29.7 2.40 1 03/27/2024 20:16 WG2252906 Lead 709 0.601 1 03/27/2024 20:16 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 19 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 19 of 39 SAMPLE RESULTS - 14 L1717694 SP-149_031924 Collected date/time: 03/19/24 12:33 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.8 1 03/23/2024 15:41 WG2252448 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.7 2.39 1 03/27/2024 20:18 WG2252906 Lead 225 0.597 1 03/27/2024 20:18 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 20 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 20 of 39 SAMPLE RESULTS - 15 L1717694 SP-150_031924 Collected date/time: 03/19/24 12:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.3 1 03/23/2024 15:41 WG2252448 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 22.5 2.40 1 03/27/2024 20:21 WG2252906 Lead 372 0.600 1 03/27/2024 20:21 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 21 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 21 of 39 SAMPLE RESULTS - 16 L1717694 SP-151_031924 Collected date/time: 03/19/24 12:41 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.6 1 03/23/2024 15:41 WG2252448 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.65 2.34 1 03/26/2024 10:17 WG2252911 Lead 118 J6 0.584 1 03/26/2024 10:17 WG2252911 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 22 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 22 of 39 SAMPLE RESULTS - 17 L1717694 SP-152_031924 Collected date/time: 03/19/24 12:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.3 1 03/23/2024 15:20 WG2252449 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.5 2.40 1 03/27/2024 20:24 WG2252906 Lead 90.0 0.600 1 03/27/2024 20:24 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 23 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 23 of 39 SAMPLE RESULTS - 18 L1717694 SP-153_031924 Collected date/time: 03/19/24 13:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.4 1 03/23/2024 15:20 WG2252449 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 31.4 2.40 1 03/27/2024 20:32 WG2252906 Lead 332 0.600 1 03/27/2024 20:32 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 24 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 24 of 39 SAMPLE RESULTS - 19 L1717694 SP-DUP-1 Collected date/time: 03/18/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.9 1 03/23/2024 15:20 WG2252449 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 32.4 2.28 1 03/27/2024 20:35 WG2252906 Lead 583 0.569 1 03/27/2024 20:35 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 25 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 25 of 39 SAMPLE RESULTS - 20 L1717694 SP-DUP-2 Collected date/time: 03/19/24 17:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.0 1 03/23/2024 15:20 WG2252449 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 22.7 2.38 1 03/27/2024 20:37 WG2252906 Lead 308 0.596 1 03/27/2024 20:37 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 26 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 26 of 39 SAMPLE RESULTS - 21 L1717694 CS-53_032024 Collected date/time: 03/20/24 13:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.6 1 03/23/2024 15:20 WG2252449 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.9 2.23 1 03/27/2024 20:40 WG2252906 Lead 92.7 0.558 1 03/27/2024 20:40 WG2252906 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 27 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 27 of 39 QUALITY CONTROL SUMMARYWG2252447 Total Solids by Method 2540 G-2011 L1717694-01,02,03,04,05,06 Method Blank (MB) (MB) R4049477-1 03/23/24 16:55 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00400 L1717694-06 Original Sample (OS) • Duplicate (DUP) (OS) L1717694-06 03/23/24 16:55 • (DUP) R4049477-3 03/23/24 16:55 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 85.3 84.5 1 0.918 10 Laboratory Control Sample (LCS) (LCS) R4049477-2 03/23/24 16:55 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 28 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 28 of 39 QUALITY CONTROL SUMMARYWG2252448 Total Solids by Method 2540 G-2011 L1717694-07,08,09,10,11,12,13,14,15,16 Method Blank (MB) (MB) R4049469-1 03/23/24 15:41 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1717694-16 Original Sample (OS) • Duplicate (DUP) (OS) L1717694-16 03/23/24 15:41 • (DUP) R4049469-3 03/23/24 15:41 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 85.6 84.7 1 0.993 10 Laboratory Control Sample (LCS) (LCS) R4049469-2 03/23/24 15:41 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 29 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 29 of 39 QUALITY CONTROL SUMMARYWG2252449 Total Solids by Method 2540 G-2011 L1717694-17,18,19,20,21 Method Blank (MB) (MB) R4049466-1 03/23/24 15:20 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1717746-03 Original Sample (OS) • Duplicate (DUP) (OS) L1717746-03 03/23/24 15:20 • (DUP) R4049466-3 03/23/24 15:20 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 82.1 82.4 1 0.294 10 Laboratory Control Sample (LCS) (LCS) R4049466-2 03/23/24 15:20 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 30 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 30 of 39 QUALITY CONTROL SUMMARYWG2252906 Metals (ICP) by Method 6010B L1717694-04,05,06,07,08,09,10,11,12,13,14,15,17,18,19,20,21 Method Blank (MB) (MB) R4050805-1 03/27/24 19:28 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4050805-2 03/27/24 19:30 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.9 93.9 80.0-120 Lead 100 94.2 94.2 80.0-120 L1718113-22 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1718113-22 03/27/24 19:33 • (MS) R4050805-5 03/27/24 19:41 • (MSD) R4050805-6 03/27/24 19:44 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 124 11.7 140 87.2 104 61.2 1 75.0-125 J3 J6 46.8 20 Lead 124 70.2 370 192 243 98.9 1 75.0-125 J5 J3 63.2 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 31 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 31 of 39 QUALITY CONTROL SUMMARYWG2252908 Metals (ICP) by Method 6010B L1717694-01,02,03 Method Blank (MB) (MB) R4050245-1 03/26/24 14:40 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4050245-2 03/26/24 14:42 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 88.0 88.0 80.0-120 Lead 100 86.4 86.4 80.0-120 L1718075-15 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1718075-15 03/26/24 16:09 • (MS) R4050245-9 03/26/24 16:18 • (MSD) R4050245-10 03/26/24 16:20 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 108 ND 99.8 104 92.8 96.3 20 75.0-125 3.73 20 L1718075-15 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1718075-15 03/26/24 14:45 • (MS) R4050245-5 03/26/24 14:53 • (MSD) R4050245-6 03/26/24 14:56 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Lead 108 13.2 113 120 92.5 98.9 1 75.0-125 5.93 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 32 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 32 of 39 QUALITY CONTROL SUMMARYWG2252911 Metals (ICP) by Method 6010B L1717694-16 Method Blank (MB) (MB) R4050075-1 03/26/24 10:14 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4050075-2 03/26/24 10:16 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 91.8 91.8 80.0-120 Lead 100 90.1 90.1 80.0-120 L1717694-16 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1717694-16 03/26/24 10:17 • (MS) R4050075-5 03/26/24 10:22 • (MSD) R4050075-6 03/26/24 10:24 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 117 9.65 109 107 85.2 83.4 1 75.0-125 1.85 20 Lead 117 118 181 196 54.2 67.0 1 75.0-125 J6 J6 7.90 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 33 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 33 of 39 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J3 The associated batch QC was outside the established quality control range for precision. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 34 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 34 of 39 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 08:42 35 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1717694 03/28/24 12:59 35 of 39 ANALYTICAL REPORT April 01, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1719956 Samples Received:03/29/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: April 01, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 1 of 13 April 02, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 1 of 13 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 CS-62-032824 L1719956-01 5 CS-63-032824 L1719956-02 6 Qc: Quality Control Summary 7 Total Solids by Method 2540 G-2011 7 Metals (ICP) by Method 6010B 9 Gl: Glossary of Terms 11 Al: Accreditations & Locations 12 Sc: Sample Chain of Custody 13 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 2 of 13 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 2 of 13 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-62-032824 L1719956-01 Solid 03/28/24 10:40 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257071 1 03/30/24 14:36 03/30/24 14:46 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2257174 1 03/31/24 22:49 04/01/24 08:35 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-63-032824 L1719956-02 Solid 03/28/24 11:45 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257072 1 03/30/24 16:47 03/30/24 16:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2257168 1 03/31/24 21:45 04/01/24 09:56 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 3 of 13 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 3 of 13 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 4 of 13 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 4 of 13 SAMPLE RESULTS - 01 L1719956 CS-62-032824 Collected date/time: 03/28/24 10:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.7 1 03/30/2024 14:46 WG2257071 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.9 2.25 1 04/01/2024 08:35 WG2257174 Lead 76.6 0.564 1 04/01/2024 08:35 WG2257174 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 5 of 13 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 5 of 13 SAMPLE RESULTS - 02 L1719956 CS-63-032824 Collected date/time: 03/28/24 11:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.7 1 03/30/2024 16:59 WG2257072 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.0 2.36 1 04/01/2024 09:56 WG2257168 Lead 104 0.590 1 04/01/2024 09:56 WG2257168 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 6 of 13 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 6 of 13 QUALITY CONTROL SUMMARYWG2257071 Total Solids by Method 2540 G-2011 L1719956-01 Method Blank (MB) (MB) R4052125-1 03/30/24 14:46 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1719946-03 Original Sample (OS) • Duplicate (DUP) (OS) L1719946-03 03/30/24 14:46 • (DUP) R4052125-3 03/30/24 14:46 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 78.1 79.2 1 1.30 10 Laboratory Control Sample (LCS) (LCS) R4052125-2 03/30/24 14:46 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 7 of 13 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 7 of 13 QUALITY CONTROL SUMMARYWG2257072 Total Solids by Method 2540 G-2011 L1719956-02 Method Blank (MB) (MB) R4052154-1 03/30/24 16:59 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1719964-02 Original Sample (OS) • Duplicate (DUP) (OS) L1719964-02 03/30/24 16:59 • (DUP) R4052154-3 03/30/24 16:59 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 93.7 93.9 1 0.160 10 Laboratory Control Sample (LCS) (LCS) R4052154-2 03/30/24 16:59 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 8 of 13 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 8 of 13 QUALITY CONTROL SUMMARYWG2257168 Metals (ICP) by Method 6010B L1719956-02 Method Blank (MB) (MB) R4052257-1 04/01/24 09:44 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4052257-2 04/01/24 09:46 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 100 100 80.0-120 Lead 100 101 101 80.0-120 L1720099-10 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1720099-10 04/01/24 09:47 • (MS) R4052257-5 04/01/24 09:52 • (MSD) R4052257-6 04/01/24 09:54 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 6.45 104 104 97.4 97.5 1 75.0-125 0.0290 20 Lead 100 8.90 102 102 92.9 92.7 1 75.0-125 0.178 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 9 of 13 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 9 of 13 QUALITY CONTROL SUMMARYWG2257174 Metals (ICP) by Method 6010B L1719956-01 Method Blank (MB) (MB) R4052221-1 04/01/24 08:29 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4052221-2 04/01/24 08:32 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 105 105 80.0-120 Lead 100 104 104 80.0-120 L1719956-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1719956-01 04/01/24 08:35 • (MS) R4052221-5 04/01/24 08:45 • (MSD) R4052221-6 04/01/24 08:49 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 113 12.9 128 127 102 101 1 75.0-125 0.450 20 Lead 113 76.6 190 174 100 86.4 1 75.0-125 8.56 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 10 of 13 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 10 of 13 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 11 of 13 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 11 of 13 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/01/24 14:52 12 of 13 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719956 04/02/24 11:25 12 of 13 ANALYTICAL REPORT April 01, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1719964 Samples Received:03/29/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: April 01, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 1 of 28 April 02, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 1 of 28 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 CS-54_032124 L1719964-01 6 CS-55_032124 L1719964-02 7 CS-56_032124 L1719964-03 8 SP-154_032124 L1719964-04 9 SP-155_032124 L1719964-05 10 SP-156_032124 L1719964-06 11 SP-157_032124 L1719964-07 12 SP-158_032124 L1719964-08 13 CS-57_032224 L1719964-09 14 CS-58_032224 L1719964-10 15 CS-59_032724 L1719964-11 16 CS-60_032724 L1719964-12 17 CS-61_032724 L1719964-13 18 DUP-6 L1719964-14 19 Qc: Quality Control Summary 20 Total Solids by Method 2540 G-2011 20 Metals (ICP) by Method 6010B 22 Gl: Glossary of Terms 25 Al: Accreditations & Locations 26 Sc: Sample Chain of Custody 27 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 2 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 2 of 28 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-54_032124 L1719964-01 Solid Annie Matzke 03/21/24 10:11 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257072 1 03/30/24 16:47 03/30/24 16:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2257151 1 03/31/24 21:42 04/01/24 09:18 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-55_032124 L1719964-02 Solid Annie Matzke 03/21/24 11:20 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257072 1 03/30/24 16:47 03/30/24 16:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2257151 1 03/31/24 21:42 04/01/24 09:19 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-56_032124 L1719964-03 Solid Annie Matzke 03/21/24 14:00 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257072 1 03/30/24 16:47 03/30/24 16:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2257151 1 03/31/24 21:42 04/01/24 09:21 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-154_032124 L1719964-04 Solid Annie Matzke 03/21/24 15:26 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257072 1 03/30/24 16:47 03/30/24 16:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2257151 1 03/31/24 21:42 04/01/24 09:23 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-155_032124 L1719964-05 Solid Annie Matzke 03/21/24 15:30 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257072 1 03/30/24 16:47 03/30/24 16:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2257151 1 03/31/24 21:42 04/01/24 08:37 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-156_032124 L1719964-06 Solid Annie Matzke 03/21/24 15:35 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257072 1 03/30/24 16:47 03/30/24 16:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2257151 1 03/31/24 21:42 04/01/24 08:39 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-157_032124 L1719964-07 Solid Annie Matzke 03/21/24 15:41 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257072 1 03/30/24 16:47 03/30/24 16:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2256673 1 03/29/24 15:23 03/30/24 16:29 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 3 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 3 of 28 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-158_032124 L1719964-08 Solid Annie Matzke 03/21/24 15:46 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257072 1 03/30/24 16:47 03/30/24 16:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2256673 1 03/29/24 15:23 03/30/24 15:53 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-57_032224 L1719964-09 Solid Annie Matzke 03/22/24 13:08 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257072 1 03/30/24 16:47 03/30/24 16:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2256673 1 03/29/24 15:23 03/30/24 16:31 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-58_032224 L1719964-10 Solid Annie Matzke 03/22/24 15:30 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257073 1 03/30/24 16:29 03/30/24 16:44 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2256673 1 03/29/24 15:23 03/30/24 16:33 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-59_032724 L1719964-11 Solid Annie Matzke 03/27/24 12:34 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257073 1 03/30/24 16:29 03/30/24 16:44 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2256673 1 03/29/24 15:23 03/30/24 16:34 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-60_032724 L1719964-12 Solid Annie Matzke 03/27/24 13:20 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257073 1 03/30/24 16:29 03/30/24 16:44 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2257174 1 03/31/24 22:49 04/01/24 09:27 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-61_032724 L1719964-13 Solid Annie Matzke 03/27/24 14:10 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257073 1 03/30/24 16:29 03/30/24 16:44 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2256673 1 03/29/24 15:23 03/30/24 16:36 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-6 L1719964-14 Solid Annie Matzke 03/27/24 16:00 03/29/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2257073 1 03/30/24 16:29 03/30/24 16:44 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2256673 1 03/29/24 15:23 03/30/24 16:38 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 4 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 4 of 28 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 5 of 28 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 5 of 28 SAMPLE RESULTS - 01 L1719964 CS-54_032124 Collected date/time: 03/21/24 10:11 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.3 1 03/30/2024 16:59 WG2257072 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.0 2.14 1 04/01/2024 09:18 WG2257151 Lead 106 0.536 1 04/01/2024 09:18 WG2257151 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 6 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 6 of 28 SAMPLE RESULTS - 02 L1719964 CS-55_032124 Collected date/time: 03/21/24 11:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.7 1 03/30/2024 16:59 WG2257072 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.0 2.13 1 04/01/2024 09:19 WG2257151 Lead 174 0.533 1 04/01/2024 09:19 WG2257151 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 7 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 7 of 28 SAMPLE RESULTS - 03 L1719964 CS-56_032124 Collected date/time: 03/21/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.6 1 03/30/2024 16:59 WG2257072 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.2 2.09 1 04/01/2024 09:21 WG2257151 Lead 111 0.523 1 04/01/2024 09:21 WG2257151 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 8 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 8 of 28 SAMPLE RESULTS - 04 L1719964 SP-154_032124 Collected date/time: 03/21/24 15:26 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.6 1 03/30/2024 16:59 WG2257072 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.3 2.18 1 04/01/2024 09:23 WG2257151 Lead 185 0.546 1 04/01/2024 09:23 WG2257151 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 9 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 9 of 28 SAMPLE RESULTS - 05 L1719964 SP-155_032124 Collected date/time: 03/21/24 15:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.3 1 03/30/2024 16:59 WG2257072 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.4 2.29 1 04/01/2024 08:37 WG2257151 Lead 295 0.573 1 04/01/2024 08:37 WG2257151 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 10 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 10 of 28 SAMPLE RESULTS - 06 L1719964 SP-156_032124 Collected date/time: 03/21/24 15:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.1 1 03/30/2024 16:59 WG2257072 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.7 2.32 1 04/01/2024 08:39 WG2257151 Lead 195 0.580 1 04/01/2024 08:39 WG2257151 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 11 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 11 of 28 SAMPLE RESULTS - 07 L1719964 SP-157_032124 Collected date/time: 03/21/24 15:41 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.5 1 03/30/2024 16:59 WG2257072 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.0 2.37 1 03/30/2024 16:29 WG2256673 Lead 204 0.592 1 03/30/2024 16:29 WG2256673 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 12 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 12 of 28 SAMPLE RESULTS - 08 L1719964 SP-158_032124 Collected date/time: 03/21/24 15:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.3 1 03/30/2024 16:59 WG2257072 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 24.0 2.32 1 03/30/2024 15:53 WG2256673 Lead 183 J3 J6 0.579 1 03/30/2024 15:53 WG2256673 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 13 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 13 of 28 SAMPLE RESULTS - 09 L1719964 CS-57_032224 Collected date/time: 03/22/24 13:08 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.0 1 03/30/2024 16:59 WG2257072 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.5 2.15 1 03/30/2024 16:31 WG2256673 Lead 150 0.537 1 03/30/2024 16:31 WG2256673 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 14 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 14 of 28 SAMPLE RESULTS - 10 L1719964 CS-58_032224 Collected date/time: 03/22/24 15:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.4 1 03/30/2024 16:44 WG2257073 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.4 2.19 1 03/30/2024 16:33 WG2256673 Lead 128 0.547 1 03/30/2024 16:33 WG2256673 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 15 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 15 of 28 SAMPLE RESULTS - 11 L1719964 CS-59_032724 Collected date/time: 03/27/24 12:34 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.4 1 03/30/2024 16:44 WG2257073 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.8 2.43 1 03/30/2024 16:34 WG2256673 Lead 42.3 0.607 1 03/30/2024 16:34 WG2256673 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 16 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 16 of 28 SAMPLE RESULTS - 12 L1719964 CS-60_032724 Collected date/time: 03/27/24 13:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.2 1 03/30/2024 16:44 WG2257073 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.79 2.40 1 04/01/2024 09:27 WG2257174 Lead 47.1 0.601 1 04/01/2024 09:27 WG2257174 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 17 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 17 of 28 SAMPLE RESULTS - 13 L1719964 CS-61_032724 Collected date/time: 03/27/24 14:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.6 1 03/30/2024 16:44 WG2257073 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.5 2.31 1 03/30/2024 16:36 WG2256673 Lead 87.3 0.577 1 03/30/2024 16:36 WG2256673 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 18 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 18 of 28 SAMPLE RESULTS - 14 L1719964 DUP-6 Collected date/time: 03/27/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.9 1 03/30/2024 16:44 WG2257073 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.7 2.41 1 03/30/2024 16:38 WG2256673 Lead 42.5 0.603 1 03/30/2024 16:38 WG2256673 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 19 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 19 of 28 QUALITY CONTROL SUMMARYWG2257072 Total Solids by Method 2540 G-2011 L1719964-01,02,03,04,05,06,07,08,09 Method Blank (MB) (MB) R4052154-1 03/30/24 16:59 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1719964-02 Original Sample (OS) • Duplicate (DUP) (OS) L1719964-02 03/30/24 16:59 • (DUP) R4052154-3 03/30/24 16:59 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 93.7 93.9 1 0.160 10 Laboratory Control Sample (LCS) (LCS) R4052154-2 03/30/24 16:59 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 20 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 20 of 28 QUALITY CONTROL SUMMARYWG2257073 Total Solids by Method 2540 G-2011 L1719964-10,11,12,13,14 Method Blank (MB) (MB) R4052153-1 03/30/24 16:44 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1719964-10 Original Sample (OS) • Duplicate (DUP) (OS) L1719964-10 03/30/24 16:44 • (DUP) R4052153-3 03/30/24 16:44 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 91.4 90.4 1 1.01 10 Laboratory Control Sample (LCS) (LCS) R4052153-2 03/30/24 16:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 21 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 21 of 28 QUALITY CONTROL SUMMARYWG2256673 Metals (ICP) by Method 6010B L1719964-07,08,09,10,11,13,14 Method Blank (MB) (MB) R4051914-1 03/30/24 15:49 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4051914-2 03/30/24 15:51 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 96.8 96.8 80.0-120 Lead 100 96.4 96.4 80.0-120 L1719964-08 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1719964-08 03/30/24 15:53 • (MS) R4051914-5 03/30/24 15:58 • (MSD) R4051914-6 03/30/24 15:59 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 116 24.0 117 118 80.7 81.3 1 75.0-125 0.626 20 Lead 116 183 219 279 31.4 82.8 1 75.0-125 J6 J3 23.9 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 22 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 22 of 28 QUALITY CONTROL SUMMARYWG2257151 Metals (ICP) by Method 6010B L1719964-01,02,03,04,05,06 Method Blank (MB) (MB) R4052256-1 04/01/24 08:48 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4052256-7 04/01/24 09:28 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 97.9 97.9 80.0-120 Lead 100 98.7 98.7 80.0-120 L1719843-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1719843-06 04/01/24 09:29 • (MS) R4052256-5 04/01/24 08:57 • (MSD) R4052256-6 04/01/24 08:58 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 ND 94.8 97.7 94.2 97.1 1 75.0-125 3.03 20 Lead 100 3.04 100 107 97.1 104 1 75.0-125 6.53 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 23 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 23 of 28 QUALITY CONTROL SUMMARYWG2257174 Metals (ICP) by Method 6010B L1719964-12 Method Blank (MB) (MB) R4052221-1 04/01/24 08:29 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4052221-2 04/01/24 08:32 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 105 105 80.0-120 Lead 100 104 104 80.0-120 L1719956-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1719956-01 04/01/24 08:35 • (MS) R4052221-5 04/01/24 08:45 • (MSD) R4052221-6 04/01/24 08:49 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 113 12.9 128 127 102 101 1 75.0-125 0.450 20 Lead 113 76.6 190 174 100 86.4 1 75.0-125 8.56 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 24 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 24 of 28 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J3 The associated batch QC was outside the established quality control range for precision. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 25 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 25 of 28 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/01/24 15:00 26 of 28 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1719964 04/02/24 11:27 26 of 28 ANALYTICAL REPORT April 07, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1721784 Samples Received:04/03/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: April 07, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 1 of 14 April 08, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 1 of 14 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 CS-64-040224 L1721784-01 5 CS-65-040224 L1721784-02 6 CS-66-040224 L1721784-03 7 CS-67-040224 L1721784-04 8 Qc: Quality Control Summary 9 Total Solids by Method 2540 G-2011 9 Metals (ICP) by Method 6010B 10 Gl: Glossary of Terms 11 Al: Accreditations & Locations 12 Sc: Sample Chain of Custody 13 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 2 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 2 of 14 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-64-040224 L1721784-01 Solid Annie Matzke 04/02/24 09:55 04/03/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2260114 1 04/04/24 11:08 04/04/24 11:25 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2260214 1 04/04/24 13:52 04/06/24 16:03 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-65-040224 L1721784-02 Solid Annie Matzke 04/02/24 09:55 04/03/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2260114 1 04/04/24 11:08 04/04/24 11:25 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2260214 1 04/04/24 13:52 04/06/24 16:05 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-66-040224 L1721784-03 Solid Annie Matzke 04/02/24 09:55 04/03/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2260114 1 04/04/24 11:08 04/04/24 11:25 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2260214 1 04/04/24 13:52 04/06/24 16:07 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-67-040224 L1721784-04 Solid Annie Matzke 04/02/24 09:55 04/03/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2260114 1 04/04/24 11:08 04/04/24 11:25 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2260214 1 04/04/24 13:52 04/06/24 16:08 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 3 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 3 of 14 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 4 of 14 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 4 of 14 SAMPLE RESULTS - 01 L1721784 CS-64-040224 Collected date/time: 04/02/24 09:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.1 1 04/04/2024 11:25 WG2260114 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.0 2.35 1 04/06/2024 16:03 WG2260214 Lead 94.8 0.588 1 04/06/2024 16:03 WG2260214 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 5 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 5 of 14 SAMPLE RESULTS - 02 L1721784 CS-65-040224 Collected date/time: 04/02/24 09:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.1 1 04/04/2024 11:25 WG2260114 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.3 2.35 1 04/06/2024 16:05 WG2260214 Lead 67.6 0.588 1 04/06/2024 16:05 WG2260214 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 6 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 6 of 14 SAMPLE RESULTS - 03 L1721784 CS-66-040224 Collected date/time: 04/02/24 09:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.0 1 04/04/2024 11:25 WG2260114 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.0 2.27 1 04/06/2024 16:07 WG2260214 Lead 83.5 0.568 1 04/06/2024 16:07 WG2260214 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 7 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 7 of 14 SAMPLE RESULTS - 04 L1721784 CS-67-040224 Collected date/time: 04/02/24 09:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.3 1 04/04/2024 11:25 WG2260114 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.3 2.34 1 04/06/2024 16:08 WG2260214 Lead 119 0.586 1 04/06/2024 16:08 WG2260214 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 8 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 8 of 14 QUALITY CONTROL SUMMARYWG2260114 Total Solids by Method 2540 G-2011 L1721784-01,02,03,04 Method Blank (MB) (MB) R4054195-1 04/04/24 11:25 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1721752-35 Original Sample (OS) • Duplicate (DUP) (OS) L1721752-35 04/04/24 11:25 • (DUP) R4054195-3 04/04/24 11:25 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 80.8 82.1 1 1.66 10 Laboratory Control Sample (LCS) (LCS) R4054195-2 04/04/24 11:25 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 9 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 9 of 14 QUALITY CONTROL SUMMARYWG2260214 Metals (ICP) by Method 6010B L1721784-01,02,03,04 Method Blank (MB) (MB) R4054766-1 04/06/24 15:22 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4054766-2 04/06/24 15:23 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 90.1 90.1 80.0-120 Lead 100 92.2 92.2 80.0-120 L1721437-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1721437-01 04/06/24 15:25 • (MS) R4054766-5 04/06/24 15:30 • (MSD) R4054766-6 04/06/24 15:32 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 110 9.29 108 99.0 89.9 81.7 1 75.0-125 8.71 20 Lead 110 6.37 106 101 90.8 86.5 1 75.0-125 4.60 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 10 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 10 of 14 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 11 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 11 of 14 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/07/24 21:34 12 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1721784 04/08/24 08:52 12 of 14 ANALYTICAL REPORT April 10, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1723205 Samples Received:04/06/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: April 10, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 1 of 37 April 10, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 1 of 37 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-159-040324 L1723205-01 7 SP-160-040324 L1723205-02 8 SP-161-040324 L1723205-03 9 SP-162-040324 L1723205-04 10 SP-163-040324 L1723205-05 11 SP-164-040324 L1723205-06 12 SP-165-040324 L1723205-07 13 SP-166-040324 L1723205-08 14 SP-167-040324 L1723205-09 15 SP-168-040324 L1723205-10 16 SP-169-040324 L1723205-11 17 SP-170-040324 L1723205-12 18 SP-171-040324 L1723205-13 19 SP-172-040324 L1723205-14 20 SP-173-040324 L1723205-15 21 SP-174-040324 L1723205-16 22 SP-175-040324 L1723205-17 23 SP-DUP-3 L1723205-18 24 SP-DUP-4 L1723205-19 25 CS-68-040424 L1723205-20 26 CS-69-040524 L1723205-21 27 Qc: Quality Control Summary 28 Total Solids by Method 2540 G-2011 28 Metals (ICP) by Method 6010B 31 Gl: Glossary of Terms 33 Al: Accreditations & Locations 34 Sc: Sample Chain of Custody 35 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 2 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 2 of 37 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-159-040324 L1723205-01 Solid Annie Matzke 04/03/24 12:39 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262391 1 04/09/24 15:03 04/09/24 15:10 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:08 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-160-040324 L1723205-02 Solid Annie Matzke 04/03/24 12:34 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262391 1 04/09/24 15:03 04/09/24 15:10 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262116 1 04/08/24 21:33 04/09/24 13:04 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-161-040324 L1723205-03 Solid Annie Matzke 04/03/24 12:28 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262391 1 04/09/24 15:03 04/09/24 15:10 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262116 1 04/08/24 21:33 04/09/24 13:05 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-162-040324 L1723205-04 Solid Annie Matzke 04/03/24 12:23 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262391 1 04/09/24 15:03 04/09/24 15:10 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262116 1 04/08/24 21:33 04/09/24 13:07 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-163-040324 L1723205-05 Solid Annie Matzke 04/03/24 13:01 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262394 1 04/09/24 13:34 04/09/24 13:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262116 1 04/08/24 21:33 04/09/24 13:12 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-164-040324 L1723205-06 Solid Annie Matzke 04/03/24 13:05 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262394 1 04/09/24 13:34 04/09/24 13:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262116 1 04/08/24 21:33 04/09/24 13:14 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-165-040324 L1723205-07 Solid Annie Matzke 04/03/24 13:11 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262394 1 04/09/24 13:34 04/09/24 13:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262116 1 04/08/24 21:33 04/09/24 13:15 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 3 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 3 of 37 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-166-040324 L1723205-08 Solid Annie Matzke 04/03/24 13:14 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262394 1 04/09/24 13:34 04/09/24 13:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262116 1 04/08/24 21:33 04/09/24 13:17 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-167-040324 L1723205-09 Solid Annie Matzke 04/03/24 13:18 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262394 1 04/09/24 13:34 04/09/24 13:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262116 1 04/08/24 21:33 04/09/24 13:19 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-168-040324 L1723205-10 Solid Annie Matzke 04/03/24 13:22 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262394 1 04/09/24 13:34 04/09/24 13:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262116 1 04/08/24 21:33 04/09/24 13:20 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-169-040324 L1723205-11 Solid Annie Matzke 04/03/24 14:56 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262394 1 04/09/24 13:34 04/09/24 13:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:10 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-170-040324 L1723205-12 Solid Annie Matzke 04/03/24 15:01 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262394 1 04/09/24 13:34 04/09/24 13:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:11 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-171-040324 L1723205-13 Solid Annie Matzke 04/03/24 15:09 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262395 1 04/09/24 15:11 04/09/24 15:18 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:13 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-172-040324 L1723205-14 Solid Annie Matzke 04/03/24 15:15 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262395 1 04/09/24 15:11 04/09/24 15:18 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:15 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 4 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 4 of 37 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-173-040324 L1723205-15 Solid Annie Matzke 04/03/24 15:20 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262395 1 04/09/24 15:11 04/09/24 15:18 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:20 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-174-040324 L1723205-16 Solid Annie Matzke 04/03/24 15:26 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262395 1 04/09/24 15:11 04/09/24 15:18 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 11:44 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-175-040324 L1723205-17 Solid Annie Matzke 04/03/24 15:30 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262395 1 04/09/24 15:11 04/09/24 15:18 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:21 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-3 L1723205-18 Solid Annie Matzke 04/03/24 16:30 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262395 1 04/09/24 15:11 04/09/24 15:18 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:23 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-4 L1723205-19 Solid Annie Matzke 04/03/24 16:37 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262395 1 04/09/24 15:11 04/09/24 15:18 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:24 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-68-040424 L1723205-20 Solid Annie Matzke 04/04/24 14:25 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262395 1 04/09/24 15:11 04/09/24 15:18 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:26 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-69-040524 L1723205-21 Solid Annie Matzke 04/05/24 12:38 04/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2262395 1 04/09/24 15:11 04/09/24 15:18 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2262118 1 04/08/24 14:33 04/09/24 12:28 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 5 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 5 of 37 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 6 of 37 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 6 of 37 SAMPLE RESULTS - 01 L1723205 SP-159-040324 Collected date/time: 04/03/24 12:39 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.8 1 04/09/2024 15:10 WG2262391 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 19.2 2.39 1 04/09/2024 12:08 WG2262118 Lead 420 0.596 1 04/09/2024 12:08 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 7 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 7 of 37 SAMPLE RESULTS - 02 L1723205 SP-160-040324 Collected date/time: 04/03/24 12:34 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.1 1 04/09/2024 15:10 WG2262391 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.4 2.38 1 04/09/2024 13:04 WG2262116 Lead 259 0.594 1 04/09/2024 13:04 WG2262116 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 8 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 8 of 37 SAMPLE RESULTS - 03 L1723205 SP-161-040324 Collected date/time: 04/03/24 12:28 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.9 1 04/09/2024 15:10 WG2262391 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.6 2.33 1 04/09/2024 13:05 WG2262116 Lead 198 0.582 1 04/09/2024 13:05 WG2262116 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 9 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 9 of 37 SAMPLE RESULTS - 04 L1723205 SP-162-040324 Collected date/time: 04/03/24 12:23 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.7 1 04/09/2024 15:10 WG2262391 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.9 2.39 1 04/09/2024 13:07 WG2262116 Lead 248 0.598 1 04/09/2024 13:07 WG2262116 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 10 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 10 of 37 SAMPLE RESULTS - 05 L1723205 SP-163-040324 Collected date/time: 04/03/24 13:01 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.7 1 04/09/2024 13:40 WG2262394 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.3 2.39 1 04/09/2024 13:12 WG2262116 Lead 298 0.598 1 04/09/2024 13:12 WG2262116 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 11 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 11 of 37 SAMPLE RESULTS - 06 L1723205 SP-164-040324 Collected date/time: 04/03/24 13:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.7 1 04/09/2024 13:40 WG2262394 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.9 2.39 1 04/09/2024 13:14 WG2262116 Lead 204 0.597 1 04/09/2024 13:14 WG2262116 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 12 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 12 of 37 SAMPLE RESULTS - 07 L1723205 SP-165-040324 Collected date/time: 04/03/24 13:11 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.5 1 04/09/2024 13:40 WG2262394 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.8 2.42 1 04/09/2024 13:15 WG2262116 Lead 275 0.606 1 04/09/2024 13:15 WG2262116 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 13 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 13 of 37 SAMPLE RESULTS - 08 L1723205 SP-166-040324 Collected date/time: 04/03/24 13:14 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.7 1 04/09/2024 13:40 WG2262394 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 20.3 2.39 1 04/09/2024 13:17 WG2262116 Lead 464 0.598 1 04/09/2024 13:17 WG2262116 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 14 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 14 of 37 SAMPLE RESULTS - 09 L1723205 SP-167-040324 Collected date/time: 04/03/24 13:18 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.0 1 04/09/2024 13:40 WG2262394 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.4 2.38 1 04/09/2024 13:19 WG2262116 Lead 342 0.595 1 04/09/2024 13:19 WG2262116 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 15 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 15 of 37 SAMPLE RESULTS - 10 L1723205 SP-168-040324 Collected date/time: 04/03/24 13:22 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.5 1 04/09/2024 13:40 WG2262394 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.5 2.39 1 04/09/2024 13:20 WG2262116 Lead 389 0.599 1 04/09/2024 13:20 WG2262116 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 16 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 16 of 37 SAMPLE RESULTS - 11 L1723205 SP-169-040324 Collected date/time: 04/03/24 14:56 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.9 1 04/09/2024 13:40 WG2262394 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.98 2.33 1 04/09/2024 12:10 WG2262118 Lead 63.0 0.582 1 04/09/2024 12:10 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 17 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 17 of 37 SAMPLE RESULTS - 12 L1723205 SP-170-040324 Collected date/time: 04/03/24 15:01 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.3 1 04/09/2024 13:40 WG2262394 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.0 2.29 1 04/09/2024 12:11 WG2262118 Lead 183 0.573 1 04/09/2024 12:11 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 18 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 18 of 37 SAMPLE RESULTS - 13 L1723205 SP-171-040324 Collected date/time: 04/03/24 15:09 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.1 1 04/09/2024 15:18 WG2262395 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.9 2.35 1 04/09/2024 12:13 WG2262118 Lead 185 0.588 1 04/09/2024 12:13 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 19 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 19 of 37 SAMPLE RESULTS - 14 L1723205 SP-172-040324 Collected date/time: 04/03/24 15:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.5 1 04/09/2024 15:18 WG2262395 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.1 2.34 1 04/09/2024 12:15 WG2262118 Lead 168 0.585 1 04/09/2024 12:15 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 20 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 20 of 37 SAMPLE RESULTS - 15 L1723205 SP-173-040324 Collected date/time: 04/03/24 15:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.6 1 04/09/2024 15:18 WG2262395 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.5 2.36 1 04/09/2024 12:20 WG2262118 Lead 131 0.591 1 04/09/2024 12:20 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 21 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 21 of 37 SAMPLE RESULTS - 16 L1723205 SP-174-040324 Collected date/time: 04/03/24 15:26 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.6 1 04/09/2024 15:18 WG2262395 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.9 2.39 1 04/09/2024 11:44 WG2262118 Lead 325 J3 J6 0.598 1 04/09/2024 11:44 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 22 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 22 of 37 SAMPLE RESULTS - 17 L1723205 SP-175-040324 Collected date/time: 04/03/24 15:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.7 1 04/09/2024 15:18 WG2262395 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.2 2.39 1 04/09/2024 12:21 WG2262118 Lead 144 0.597 1 04/09/2024 12:21 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 23 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 23 of 37 SAMPLE RESULTS - 18 L1723205 SP-DUP-3 Collected date/time: 04/03/24 16:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.9 1 04/09/2024 15:18 WG2262395 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.7 2.35 1 04/09/2024 12:23 WG2262118 Lead 221 0.589 1 04/09/2024 12:23 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 24 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 24 of 37 SAMPLE RESULTS - 19 L1723205 SP-DUP-4 Collected date/time: 04/03/24 16:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.2 1 04/09/2024 15:18 WG2262395 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.7 2.38 1 04/09/2024 12:24 WG2262118 Lead 370 0.594 1 04/09/2024 12:24 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 25 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 25 of 37 SAMPLE RESULTS - 20 L1723205 CS-68-040424 Collected date/time: 04/04/24 14:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.5 1 04/09/2024 15:18 WG2262395 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.48 2.16 1 04/09/2024 12:26 WG2262118 Lead 30.1 0.541 1 04/09/2024 12:26 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 26 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 26 of 37 SAMPLE RESULTS - 21 L1723205 CS-69-040524 Collected date/time: 04/05/24 12:38 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.3 1 04/09/2024 15:18 WG2262395 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 7.56 2.14 1 04/09/2024 12:28 WG2262118 Lead 33.7 0.536 1 04/09/2024 12:28 WG2262118 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 27 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 27 of 37 QUALITY CONTROL SUMMARYWG2262391 Total Solids by Method 2540 G-2011 L1723205-01,02,03,04 Method Blank (MB) (MB) R4055883-1 04/09/24 15:10 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1723189-12 Original Sample (OS) • Duplicate (DUP) (OS) L1723189-12 04/09/24 15:10 • (DUP) R4055883-3 04/09/24 15:10 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 89.8 94.7 1 5.38 10 Laboratory Control Sample (LCS) (LCS) R4055883-2 04/09/24 15:10 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 28 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 28 of 37 QUALITY CONTROL SUMMARYWG2262394 Total Solids by Method 2540 G-2011 L1723205-05,06,07,08,09,10,11,12 Method Blank (MB) (MB) R4055833-1 04/09/24 13:40 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1723205-08 Original Sample (OS) • Duplicate (DUP) (OS) L1723205-08 04/09/24 13:40 • (DUP) R4055833-3 04/09/24 13:40 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 83.7 83.5 1 0.247 10 Laboratory Control Sample (LCS) (LCS) R4055833-2 04/09/24 13:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 29 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 29 of 37 QUALITY CONTROL SUMMARYWG2262395 Total Solids by Method 2540 G-2011 L1723205-13,14,15,16,17,18,19,20,21 Method Blank (MB) (MB) R4055895-1 04/09/24 15:18 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1723205-18 Original Sample (OS) • Duplicate (DUP) (OS) L1723205-18 04/09/24 15:18 • (DUP) R4055895-3 04/09/24 15:18 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 84.9 85.3 1 0.452 10 Laboratory Control Sample (LCS) (LCS) R4055895-2 04/09/24 15:18 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 30 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 30 of 37 QUALITY CONTROL SUMMARYWG2262116 Metals (ICP) by Method 6010B L1723205-02,03,04,05,06,07,08,09,10 Method Blank (MB) (MB) R4055550-1 04/09/24 12:33 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4055550-2 04/09/24 12:34 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 94.0 94.0 80.0-120 Lead 100 93.5 93.5 80.0-120 L1723050-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1723050-03 04/09/24 12:36 • (MS) R4055550-5 04/09/24 12:41 • (MSD) R4055550-6 04/09/24 12:42 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 6.74 99.1 97.7 92.4 91.0 1 75.0-125 1.42 20 Lead 100 8.72 99.8 99.0 91.1 90.3 1 75.0-125 0.758 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 31 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 31 of 37 QUALITY CONTROL SUMMARYWG2262118 Metals (ICP) by Method 6010B L1723205-01,11,12,13,14,15,16,17,18,19,20,21 Method Blank (MB) (MB) R4055549-1 04/09/24 11:40 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4055549-2 04/09/24 11:42 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.3 93.3 80.0-120 Lead 100 93.3 93.3 80.0-120 L1723205-16 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1723205-16 04/09/24 11:44 • (MS) R4055549-5 04/09/24 11:48 • (MSD) R4055549-6 04/09/24 11:50 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 120 16.9 126 127 91.3 92.1 1 75.0-125 0.818 20 Lead 120 325 384 285 49.7 0.000 1 75.0-125 J6 J3 J6 29.6 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 32 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 32 of 37 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J3 The associated batch QC was outside the established quality control range for precision. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 33 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 33 of 37 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 11:52 34 of 37 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1723205 04/10/24 13:58 34 of 37 ANALYTICAL REPORT April 15, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1724740 Samples Received:04/11/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: April 15, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 1 of 32 April 16, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 1 of 32 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-188_040924 L1724740-01 7 SP-189_040924 L1724740-02 8 SP-190_040924 L1724740-03 9 SP-191_040924 L1724740-04 10 SP-192_040924 L1724740-05 11 SP-193_040924 L1724740-06 12 SP-194_040924 L1724740-07 13 SP-DUP-6 L1724740-08 14 SP-195_041024 L1724740-09 15 SP-196_041024 L1724740-10 16 SP-197_041024 L1724740-11 17 SP-198_041024 L1724740-12 18 SP-199_041024 L1724740-13 19 SP-200_041024 L1724740-14 20 SP-201_041024 L1724740-15 21 SP-202_041024 L1724740-16 22 SP-DUP-7 L1724740-17 23 Qc: Quality Control Summary 24 Total Solids by Method 2540 G-2011 24 Metals (ICP) by Method 6010B 27 Gl: Glossary of Terms 29 Al: Accreditations & Locations 30 Sc: Sample Chain of Custody 31 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 2 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 2 of 32 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-188_040924 L1724740-01 Solid Annie Matzke 04/09/24 15:55 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265541 1 04/12/24 08:18 04/12/24 08:25 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 19:23 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-189_040924 L1724740-02 Solid Annie Matzke 04/09/24 15:50 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265542 1 04/12/24 14:44 04/12/24 14:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 19:26 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-190_040924 L1724740-03 Solid Annie Matzke 04/09/24 15:46 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265542 1 04/12/24 14:44 04/12/24 14:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 19:29 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-191_040924 L1724740-04 Solid Annie Matzke 04/09/24 15:41 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265542 1 04/12/24 14:44 04/12/24 14:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 19:32 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-192_040924 L1724740-05 Solid Annie Matzke 04/09/24 15:37 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265542 1 04/12/24 14:44 04/12/24 14:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 19:41 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-193_040924 L1724740-06 Solid Annie Matzke 04/09/24 15:33 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265542 1 04/12/24 14:44 04/12/24 14:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 19:44 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-194_040924 L1724740-07 Solid Annie Matzke 04/09/24 15:30 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265542 1 04/12/24 14:44 04/12/24 14:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 19:46 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 3 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 3 of 32 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-DUP-6 L1724740-08 Solid Annie Matzke 04/09/24 16:00 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265542 1 04/12/24 14:44 04/12/24 14:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 19:50 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-195_041024 L1724740-09 Solid Annie Matzke 04/10/24 11:06 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265542 1 04/12/24 14:44 04/12/24 14:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 19:53 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-196_041024 L1724740-10 Solid Annie Matzke 04/10/24 11:12 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265542 1 04/12/24 14:44 04/12/24 14:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 19:56 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-197_041024 L1724740-11 Solid Annie Matzke 04/10/24 11:19 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265542 1 04/12/24 14:44 04/12/24 14:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266043 1 04/14/24 22:53 04/15/24 10:09 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-198_041024 L1724740-12 Solid Annie Matzke 04/10/24 11:28 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265543 1 04/12/24 14:30 04/12/24 14:42 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266043 1 04/14/24 22:53 04/15/24 10:11 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-199_041024 L1724740-13 Solid Annie Matzke 04/10/24 11:38 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265543 1 04/12/24 14:30 04/12/24 14:42 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266043 1 04/14/24 22:53 04/15/24 10:14 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-200_041024 L1724740-14 Solid Annie Matzke 04/10/24 11:42 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265543 1 04/12/24 14:30 04/12/24 14:42 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266043 1 04/14/24 22:53 04/15/24 10:17 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 4 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 4 of 32 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-201_041024 L1724740-15 Solid Annie Matzke 04/10/24 11:47 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265543 1 04/12/24 14:30 04/12/24 14:42 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266043 1 04/14/24 22:53 04/15/24 10:20 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-202_041024 L1724740-16 Solid Annie Matzke 04/10/24 11:52 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265543 1 04/12/24 14:30 04/12/24 14:42 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266040 1 04/14/24 08:57 04/14/24 18:36 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-7 L1724740-17 Solid Annie Matzke 04/10/24 12:00 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265543 1 04/12/24 14:30 04/12/24 14:42 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266043 1 04/14/24 22:53 04/15/24 10:23 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 5 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 5 of 32 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 6 of 32 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 6 of 32 SAMPLE RESULTS - 01 L1724740 SP-188_040924 Collected date/time: 04/09/24 15:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.4 1 04/12/2024 08:25 WG2265541 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.2 2.34 1 04/14/2024 19:23 WG2266040 Lead 132 0.585 1 04/14/2024 19:23 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 7 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 7 of 32 SAMPLE RESULTS - 02 L1724740 SP-189_040924 Collected date/time: 04/09/24 15:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.0 1 04/12/2024 14:54 WG2265542 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.99 2.27 1 04/14/2024 19:26 WG2266040 Lead 115 0.568 1 04/14/2024 19:26 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 8 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 8 of 32 SAMPLE RESULTS - 03 L1724740 SP-190_040924 Collected date/time: 04/09/24 15:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.2 1 04/12/2024 14:54 WG2265542 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.0 2.27 1 04/14/2024 19:29 WG2266040 Lead 146 0.567 1 04/14/2024 19:29 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 9 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 9 of 32 SAMPLE RESULTS - 04 L1724740 SP-191_040924 Collected date/time: 04/09/24 15:41 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.5 1 04/12/2024 14:54 WG2265542 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.0 2.31 1 04/14/2024 19:32 WG2266040 Lead 70.1 0.578 1 04/14/2024 19:32 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 10 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 10 of 32 SAMPLE RESULTS - 05 L1724740 SP-192_040924 Collected date/time: 04/09/24 15:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.8 1 04/12/2024 14:54 WG2265542 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.9 2.25 1 04/14/2024 19:41 WG2266040 Lead 92.8 0.563 1 04/14/2024 19:41 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 11 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 11 of 32 SAMPLE RESULTS - 06 L1724740 SP-193_040924 Collected date/time: 04/09/24 15:33 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.6 1 04/12/2024 14:54 WG2265542 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.2 2.21 1 04/14/2024 19:44 WG2266040 Lead 75.2 0.552 1 04/14/2024 19:44 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 12 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 12 of 32 SAMPLE RESULTS - 07 L1724740 SP-194_040924 Collected date/time: 04/09/24 15:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.5 1 04/12/2024 14:54 WG2265542 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.6 2.26 1 04/14/2024 19:46 WG2266040 Lead 97.7 0.565 1 04/14/2024 19:46 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 13 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 13 of 32 SAMPLE RESULTS - 08 L1724740 SP-DUP-6 Collected date/time: 04/09/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.8 1 04/12/2024 14:54 WG2265542 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.99 2.28 1 04/14/2024 19:50 WG2266040 Lead 86.6 0.569 1 04/14/2024 19:50 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 14 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 14 of 32 SAMPLE RESULTS - 09 L1724740 SP-195_041024 Collected date/time: 04/10/24 11:06 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.8 1 04/12/2024 14:54 WG2265542 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.0 2.33 1 04/14/2024 19:53 WG2266040 Lead 137 0.583 1 04/14/2024 19:53 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 15 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 15 of 32 SAMPLE RESULTS - 10 L1724740 SP-196_041024 Collected date/time: 04/10/24 11:12 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.2 1 04/12/2024 14:54 WG2265542 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 7.99 2.29 1 04/14/2024 19:56 WG2266040 Lead 52.8 0.573 1 04/14/2024 19:56 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 16 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 16 of 32 SAMPLE RESULTS - 11 L1724740 SP-197_041024 Collected date/time: 04/10/24 11:19 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.7 1 04/12/2024 14:54 WG2265542 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.1 2.28 1 04/15/2024 10:09 WG2266043 Lead 128 0.570 1 04/15/2024 10:09 WG2266043 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 17 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 17 of 32 SAMPLE RESULTS - 12 L1724740 SP-198_041024 Collected date/time: 04/10/24 11:28 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.4 1 04/12/2024 14:42 WG2265543 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.99 2.29 1 04/15/2024 10:11 WG2266043 Lead 101 0.572 1 04/15/2024 10:11 WG2266043 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 18 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 18 of 32 SAMPLE RESULTS - 13 L1724740 SP-199_041024 Collected date/time: 04/10/24 11:38 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.6 1 04/12/2024 14:42 WG2265543 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.3 2.34 1 04/15/2024 10:14 WG2266043 Lead 266 0.584 1 04/15/2024 10:14 WG2266043 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 19 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 19 of 32 SAMPLE RESULTS - 14 L1724740 SP-200_041024 Collected date/time: 04/10/24 11:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.4 1 04/12/2024 14:42 WG2265543 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.8 2.32 1 04/15/2024 10:17 WG2266043 Lead 252 0.579 1 04/15/2024 10:17 WG2266043 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 20 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 20 of 32 SAMPLE RESULTS - 15 L1724740 SP-201_041024 Collected date/time: 04/10/24 11:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.3 1 04/12/2024 14:42 WG2265543 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 17.1 2.24 1 04/15/2024 10:20 WG2266043 Lead 252 0.560 1 04/15/2024 10:20 WG2266043 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 21 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 21 of 32 SAMPLE RESULTS - 16 L1724740 SP-202_041024 Collected date/time: 04/10/24 11:52 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.0 1 04/12/2024 14:42 WG2265543 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.11 2.32 1 04/14/2024 18:36 WG2266040 Lead 84.1 J5 O1 0.581 1 04/14/2024 18:36 WG2266040 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 22 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 22 of 32 SAMPLE RESULTS - 17 L1724740 SP-DUP-7 Collected date/time: 04/10/24 12:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.7 1 04/12/2024 14:42 WG2265543 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 17.7 2.31 1 04/15/2024 10:23 WG2266043 Lead 251 0.577 1 04/15/2024 10:23 WG2266043 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 23 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 23 of 32 QUALITY CONTROL SUMMARYWG2265541 Total Solids by Method 2540 G-2011 L1724740-01 Method Blank (MB) (MB) R4057579-1 04/12/24 08:25 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1724708-08 Original Sample (OS) • Duplicate (DUP) (OS) L1724708-08 04/12/24 08:25 • (DUP) R4057579-3 04/12/24 08:25 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 83.9 84.0 1 0.126 10 Laboratory Control Sample (LCS) (LCS) R4057579-2 04/12/24 08:25 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 24 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 24 of 32 QUALITY CONTROL SUMMARYWG2265542 Total Solids by Method 2540 G-2011 L1724740-02,03,04,05,06,07,08,09,10,11 Method Blank (MB) (MB) R4057262-1 04/12/24 14:54 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1724740-04 Original Sample (OS) • Duplicate (DUP) (OS) L1724740-04 04/12/24 14:54 • (DUP) R4057262-3 04/12/24 14:54 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 86.5 88.2 1 1.98 10 Laboratory Control Sample (LCS) (LCS) R4057262-2 04/12/24 14:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 25 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 25 of 32 QUALITY CONTROL SUMMARYWG2265543 Total Solids by Method 2540 G-2011 L1724740-12,13,14,15,16,17 Method Blank (MB) (MB) R4057261-1 04/12/24 14:42 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1724740-14 Original Sample (OS) • Duplicate (DUP) (OS) L1724740-14 04/12/24 14:42 • (DUP) R4057261-3 04/12/24 14:42 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 86.4 86.7 1 0.352 10 Laboratory Control Sample (LCS) (LCS) R4057261-2 04/12/24 14:42 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 26 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 26 of 32 QUALITY CONTROL SUMMARYWG2266040 Metals (ICP) by Method 6010B L1724740-01,02,03,04,05,06,07,08,09,10,16 Method Blank (MB) (MB) R4057532-1 04/14/24 18:31 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4057532-2 04/14/24 18:33 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 96.9 96.9 80.0-120 Lead 100 97.0 97.0 80.0-120 L1724740-16 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1724740-16 04/14/24 18:36 • (MS) R4057532-5 04/14/24 18:45 • (MSD) R4057532-6 04/14/24 18:48 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 116 9.11 127 116 101 91.6 1 75.0-125 9.36 20 Lead 116 84.1 267 261 157 152 1 75.0-125 J5 J5 2.19 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 27 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 27 of 32 QUALITY CONTROL SUMMARYWG2266043 Metals (ICP) by Method 6010B L1724740-11,12,13,14,15,17 Method Blank (MB) (MB) R4057801-1 04/15/24 08:55 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4057801-2 04/15/24 08:58 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 88.5 88.5 80.0-120 Lead 100 87.0 87.0 80.0-120 L1724215-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1724215-02 04/15/24 09:01 • (MS) R4057801-5 04/15/24 09:10 • (MSD) R4057801-6 04/15/24 09:13 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 5.37 95.3 96.3 90.0 91.0 1 75.0-125 1.04 20 Lead 100 13.4 104 105 90.3 91.2 1 75.0-125 0.893 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 28 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 28 of 32 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. O1 The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 29 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 29 of 32 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/15/24 17:03 30 of 32 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724740 04/16/24 08:57 30 of 32 ANALYTICAL REPORT April 16, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1724742 Samples Received:04/11/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: April 16, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 1 of 25 April 17, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 1 of 25 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SP-176_040924 L1724742-01 6 SP-177_040924 L1724742-02 7 SP-178_040924 L1724742-03 8 SP-179_040924 L1724742-04 9 SP-180_040924 L1724742-05 10 SP-181_040924 L1724742-06 11 SP-182_040924 L1724742-07 12 SP-183_040924 L1724742-08 13 SP-184_040924 L1724742-09 14 SP-185_040924 L1724742-10 15 SP-186_040924 L1724742-11 16 SP-187_040924 L1724742-12 17 SP-DUP-5 L1724742-13 18 Qc: Quality Control Summary 19 Total Solids by Method 2540 G-2011 19 Metals (ICP) by Method 6010B 21 Gl: Glossary of Terms 22 Al: Accreditations & Locations 23 Sc: Sample Chain of Custody 24 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 2 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 2 of 25 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-176_040924 L1724742-01 Solid Annie Matzke 04/09/24 10:46 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265543 1 04/12/24 14:30 04/12/24 14:42 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:14 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-177_040924 L1724742-02 Solid Annie Matzke 04/09/24 11:22 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265543 1 04/12/24 14:30 04/12/24 14:42 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:17 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-178_040924 L1724742-03 Solid Annie Matzke 04/09/24 11:26 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265543 1 04/12/24 14:30 04/12/24 14:42 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:26 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-179_040924 L1724742-04 Solid Annie Matzke 04/09/24 11:33 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265543 1 04/12/24 14:30 04/12/24 14:42 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:29 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-180_040924 L1724742-05 Solid Annie Matzke 04/09/24 16:00 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265544 1 04/15/24 13:00 04/15/24 13:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:32 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-181_040924 L1724742-06 Solid Annie Matzke 04/09/24 11:43 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265544 1 04/15/24 13:00 04/15/24 13:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:35 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-182_040924 L1724742-07 Solid Annie Matzke 04/09/24 11:48 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265544 1 04/15/24 13:00 04/15/24 13:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:37 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 3 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 3 of 25 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-183_040924 L1724742-08 Solid Annie Matzke 04/09/24 12:43 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265544 1 04/15/24 13:00 04/15/24 13:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:40 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-184_040924 L1724742-09 Solid Annie Matzke 04/09/24 12:38 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265544 1 04/15/24 13:00 04/15/24 13:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:43 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-185_040924 L1724742-10 Solid Annie Matzke 04/09/24 13:18 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265544 1 04/15/24 13:00 04/15/24 13:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:46 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-186_040924 L1724742-11 Solid Annie Matzke 04/09/24 13:22 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265544 1 04/15/24 13:00 04/15/24 13:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:49 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-187_040924 L1724742-12 Solid Annie Matzke 04/09/24 13:29 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265544 1 04/15/24 13:00 04/15/24 13:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 11:52 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-5 L1724742-13 Solid Annie Matzke 04/09/24 14:00 04/11/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2265544 1 04/15/24 13:00 04/15/24 13:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2266050 1 04/14/24 22:50 04/15/24 12:00 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 4 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 4 of 25 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 5 of 25 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 5 of 25 SAMPLE RESULTS - 01 L1724742 SP-176_040924 Collected date/time: 04/09/24 10:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.2 1 04/12/2024 14:42 WG2265543 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.3 2.32 1 04/15/2024 11:14 WG2266050 Lead 117 0.580 1 04/15/2024 11:14 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 6 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 6 of 25 SAMPLE RESULTS - 02 L1724742 SP-177_040924 Collected date/time: 04/09/24 11:22 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.8 1 04/12/2024 14:42 WG2265543 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.4 2.33 1 04/15/2024 11:17 WG2266050 Lead 123 0.583 1 04/15/2024 11:17 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 7 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 7 of 25 SAMPLE RESULTS - 03 L1724742 SP-178_040924 Collected date/time: 04/09/24 11:26 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.0 1 04/12/2024 14:42 WG2265543 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 15.4 2.33 1 04/15/2024 11:26 WG2266050 Lead 262 0.582 1 04/15/2024 11:26 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 8 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 8 of 25 SAMPLE RESULTS - 04 L1724742 SP-179_040924 Collected date/time: 04/09/24 11:33 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.2 1 04/12/2024 14:42 WG2265543 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.8 2.32 1 04/15/2024 11:29 WG2266050 Lead 135 0.580 1 04/15/2024 11:29 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 9 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 9 of 25 SAMPLE RESULTS - 05 L1724742 SP-180_040924 Collected date/time: 04/09/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.0 1 04/15/2024 13:07 WG2265544 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.53 2.32 1 04/15/2024 11:32 WG2266050 Lead 80.0 0.581 1 04/15/2024 11:32 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 10 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 10 of 25 SAMPLE RESULTS - 06 L1724742 SP-181_040924 Collected date/time: 04/09/24 11:43 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.6 1 04/15/2024 13:07 WG2265544 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.95 2.34 1 04/15/2024 11:35 WG2266050 Lead 84.7 0.584 1 04/15/2024 11:35 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 11 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 11 of 25 SAMPLE RESULTS - 07 L1724742 SP-182_040924 Collected date/time: 04/09/24 11:48 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.1 1 04/15/2024 13:07 WG2265544 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.6 2.32 1 04/15/2024 11:37 WG2266050 Lead 126 0.581 1 04/15/2024 11:37 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 12 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 12 of 25 SAMPLE RESULTS - 08 L1724742 SP-183_040924 Collected date/time: 04/09/24 12:43 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.6 1 04/15/2024 13:07 WG2265544 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.2 2.34 1 04/15/2024 11:40 WG2266050 Lead 96.8 0.584 1 04/15/2024 11:40 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 13 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 13 of 25 SAMPLE RESULTS - 09 L1724742 SP-184_040924 Collected date/time: 04/09/24 12:38 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.4 1 04/15/2024 13:07 WG2265544 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 7.63 2.24 1 04/15/2024 11:43 WG2266050 Lead 35.5 0.559 1 04/15/2024 11:43 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 14 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 14 of 25 SAMPLE RESULTS - 10 L1724742 SP-185_040924 Collected date/time: 04/09/24 13:18 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.2 1 04/15/2024 13:07 WG2265544 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.2 2.35 1 04/15/2024 11:46 WG2266050 Lead 101 0.587 1 04/15/2024 11:46 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 15 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 15 of 25 SAMPLE RESULTS - 11 L1724742 SP-186_040924 Collected date/time: 04/09/24 13:22 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.3 1 04/15/2024 13:07 WG2265544 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.1 2.32 1 04/15/2024 11:49 WG2266050 Lead 114 0.579 1 04/15/2024 11:49 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 16 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 16 of 25 SAMPLE RESULTS - 12 L1724742 SP-187_040924 Collected date/time: 04/09/24 13:29 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.8 1 04/15/2024 13:07 WG2265544 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 15.7 2.28 1 04/15/2024 11:52 WG2266050 Lead 178 0.569 1 04/15/2024 11:52 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 17 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 17 of 25 SAMPLE RESULTS - 13 L1724742 SP-DUP-5 Collected date/time: 04/09/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.5 1 04/15/2024 13:07 WG2265544 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.4 2.34 1 04/15/2024 12:00 WG2266050 Lead 120 0.585 1 04/15/2024 12:00 WG2266050 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 18 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 18 of 25 QUALITY CONTROL SUMMARYWG2265543 Total Solids by Method 2540 G-2011 L1724742-01,02,03,04 Method Blank (MB) (MB) R4057261-1 04/12/24 14:42 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1724740-14 Original Sample (OS) • Duplicate (DUP) (OS) L1724740-14 04/12/24 14:42 • (DUP) R4057261-3 04/12/24 14:42 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 86.4 86.7 1 0.352 10 Laboratory Control Sample (LCS) (LCS) R4057261-2 04/12/24 14:42 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 19 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 19 of 25 QUALITY CONTROL SUMMARYWG2265544 Total Solids by Method 2540 G-2011 L1724742-05,06,07,08,09,10,11,12,13 Method Blank (MB) (MB) R4058095-1 04/15/24 13:07 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1724742-11 Original Sample (OS) • Duplicate (DUP) (OS) L1724742-11 04/15/24 13:07 • (DUP) R4058095-3 04/15/24 13:07 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 86.3 86.9 1 0.692 10 Laboratory Control Sample (LCS) (LCS) R4058095-2 04/15/24 13:07 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 20 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 20 of 25 QUALITY CONTROL SUMMARYWG2266050 Metals (ICP) by Method 6010B L1724742-01,02,03,04,05,06,07,08,09,10,11,12,13 Method Blank (MB) (MB) R4057802-1 04/15/24 10:51 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4057802-2 04/15/24 10:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.3 93.3 80.0-120 Lead 100 93.1 93.1 80.0-120 L1724774-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1724774-03 04/15/24 10:57 • (MS) R4057802-5 04/15/24 11:06 • (MSD) R4057802-6 04/15/24 11:08 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 121 5.16 115 114 90.4 89.2 1 75.0-125 1.25 20 Lead 121 14.7 126 126 91.7 91.3 1 75.0-125 0.370 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 21 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 21 of 25 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 22 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 22 of 25 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/16/24 12:27 23 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1724742 04/17/24 08:47 23 of 25 ANALYTICAL REPORT April 24, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1726172 Samples Received:04/16/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: April 24, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 08:54 1 of 11 April 24, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 17:11 1 of 11 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 SP-6_041124 L1726172-01 5 SP-2_041124 L1726172-02 6 Qc: Quality Control Summary 7 Total Solids by Method 2540 G-2011 7 Metals (ICP) by Method 6010B 8 Gl: Glossary of Terms 9 Al: Accreditations & Locations 10 Sc: Sample Chain of Custody 11 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 08:54 2 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 17:11 2 of 11 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-6_041124 L1726172-01 Solid Annie Matzke 04/11/24 11:28 04/16/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2268576 1 04/17/24 12:26 04/17/24 12:43 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2271908 1 04/23/24 12:08 04/23/24 22:27 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-2_041124 L1726172-02 Solid Annie Matzke 04/11/24 10:45 04/16/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2268576 1 04/17/24 12:26 04/17/24 12:43 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2271908 1 04/23/24 12:08 04/23/24 22:29 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 08:54 3 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 17:11 3 of 11 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 08:54 4 of 11 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 17:11 4 of 11 SAMPLE RESULTS - 01 L1726172 SP-6_041124 Collected date/time: 04/11/24 11:28 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 82.9 1 04/17/2024 12:43 WG2268576 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 32.3 2.41 1 04/23/2024 22:27 WG2271908 Lead 852 0.603 1 04/23/2024 22:27 WG2271908 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 08:54 5 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 17:11 5 of 11 SAMPLE RESULTS - 02 L1726172 SP-2_041124 Collected date/time: 04/11/24 10:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 83.6 1 04/17/2024 12:43 WG2268576 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 65.0 2.39 1 04/23/2024 22:29 WG2271908 Lead 1190 0.598 1 04/23/2024 22:29 WG2271908 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 08:54 6 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 17:11 6 of 11 QUALITY CONTROL SUMMARYWG2268576 Total Solids by Method 2540 G-2011 L1726172-01,02 Method Blank (MB) (MB) R4059081-1 04/17/24 12:43 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1726087-07 Original Sample (OS) • Duplicate (DUP) (OS) L1726087-07 04/17/24 12:43 • (DUP) R4059081-3 04/17/24 12:43 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 80.0 80.0 1 0.0175 10 Laboratory Control Sample (LCS) (LCS) R4059081-2 04/17/24 12:43 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 08:54 7 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 17:11 7 of 11 QUALITY CONTROL SUMMARYWG2271908 Metals (ICP) by Method 6010B L1726172-01,02 Method Blank (MB) (MB) R4061210-1 04/23/24 21:55 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4061210-2 04/23/24 21:56 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 92.2 92.2 80.0-120 Lead 100 90.5 90.5 80.0-120 L1725659-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1725659-03 04/23/24 21:58 • (MS) R4061210-5 04/23/24 22:03 • (MSD) R4061210-6 04/23/24 22:05 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 124 3.26 103 111 80.5 87.0 1 75.0-125 7.49 20 Lead 124 21.3 131 134 88.8 91.2 1 75.0-125 2.23 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 08:54 8 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 17:11 8 of 11 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 08:54 9 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 17:11 9 of 11 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 08:54 10 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726172 04/24/24 17:11 10 of 11 ANALYTICAL REPORT April 24, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1726178 Samples Received:04/16/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: April 24, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 1 of 12 April 24, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 1 of 12 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 CS-70_041224 L1726178-01 5 CS-71_041224 L1726178-02 6 DUP-7_071224 L1726178-03 7 Qc: Quality Control Summary 8 Total Solids by Method 2540 G-2011 8 Metals (ICP) by Method 6010B 9 Gl: Glossary of Terms 10 Al: Accreditations & Locations 11 Sc: Sample Chain of Custody 12 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 2 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 2 of 12 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-70_041224 L1726178-01 Solid Annie Matzke 04/12/24 12:45 04/16/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2268578 1 04/17/24 12:09 04/17/24 12:23 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2271908 1 04/23/24 12:08 04/23/24 22:36 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-71_041224 L1726178-02 Solid Annie Matzke 04/12/24 14:00 04/16/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2268578 1 04/17/24 12:09 04/17/24 12:23 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2271908 1 04/23/24 12:08 04/23/24 22:37 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-7_071224 L1726178-03 Solid Annie Matzke 04/12/24 15:00 04/16/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2268578 1 04/17/24 12:09 04/17/24 12:23 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2271908 1 04/23/24 12:08 04/23/24 22:39 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 3 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 3 of 12 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 4 of 12 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 4 of 12 SAMPLE RESULTS - 01 L1726178 CS-70_041224 Collected date/time: 04/12/24 12:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.0 1 04/17/2024 12:23 WG2268578 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.14 2.11 1 04/23/2024 22:36 WG2271908 Lead 80.3 0.526 1 04/23/2024 22:36 WG2271908 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 5 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 5 of 12 SAMPLE RESULTS - 02 L1726178 CS-71_041224 Collected date/time: 04/12/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.8 1 04/17/2024 12:23 WG2268578 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.11 2.07 1 04/23/2024 22:37 WG2271908 Lead 74.9 0.517 1 04/23/2024 22:37 WG2271908 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 6 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 6 of 12 SAMPLE RESULTS - 03 L1726178 DUP-7_071224 Collected date/time: 04/12/24 15:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.6 1 04/17/2024 12:23 WG2268578 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.57 2.09 1 04/23/2024 22:39 WG2271908 Lead 102 0.523 1 04/23/2024 22:39 WG2271908 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 7 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 7 of 12 QUALITY CONTROL SUMMARYWG2268578 Total Solids by Method 2540 G-2011 L1726178-01,02,03 Method Blank (MB) (MB) R4059076-1 04/17/24 12:23 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1726180-01 Original Sample (OS) • Duplicate (DUP) (OS) L1726180-01 04/17/24 12:23 • (DUP) R4059076-3 04/17/24 12:23 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 78.4 79.0 1 0.768 10 Laboratory Control Sample (LCS) (LCS) R4059076-2 04/17/24 12:23 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 8 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 8 of 12 QUALITY CONTROL SUMMARYWG2271908 Metals (ICP) by Method 6010B L1726178-01,02,03 Method Blank (MB) (MB) R4061210-1 04/23/24 21:55 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4061210-2 04/23/24 21:56 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 92.2 92.2 80.0-120 Lead 100 90.5 90.5 80.0-120 L1725659-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1725659-03 04/23/24 21:58 • (MS) R4061210-5 04/23/24 22:03 • (MSD) R4061210-6 04/23/24 22:05 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 124 3.26 103 111 80.5 87.0 1 75.0-125 7.49 20 Lead 124 21.3 131 134 88.8 91.2 1 75.0-125 2.23 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 9 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 9 of 12 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 10 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 10 of 12 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 08:54 11 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1726178 04/24/24 17:11 11 of 12 ANALYTICAL REPORT April 29, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1728021 Samples Received:04/20/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: April 29, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 1 of 35 April 30, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 1 of 35 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-207_041624 L1728021-01 7 SP-206_041624 L1728021-02 8 SP-210_041624 L1728021-03 9 SP-205_041624 L1728021-04 10 CS-73_041724 L1728021-05 11 CS-75_041724 L1728021-06 12 CS-72_041724 L1728021-07 13 CS-74_041724 L1728021-08 14 SP-DUP-8 L1728021-09 15 SP-204_041624 L1728021-10 16 SP-203_041624 L1728021-11 17 SP-208_041624 L1728021-12 18 SP-209_041624 L1728021-13 19 SP-216_041624 L1728021-14 20 SP-211_041824 L1728021-15 21 SP-215_041824 L1728021-16 22 SP-213_041824 L1728021-17 23 SP-214_041824 L1728021-18 24 SP-212_041824 L1728021-19 25 Qc: Quality Control Summary 26 Total Solids by Method 2540 G-2011 26 Metals (ICP) by Method 6010B 29 Gl: Glossary of Terms 32 Al: Accreditations & Locations 33 Sc: Sample Chain of Custody 34 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 2 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 2 of 35 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-207_041624 L1728021-01 Solid Annie Matzke 04/16/24 13:19 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273412 1 04/24/24 12:32 04/24/24 12:48 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2276391 1 04/29/24 08:54 04/29/24 18:48 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-206_041624 L1728021-02 Solid Annie Matzke 04/16/24 12:57 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273412 1 04/24/24 12:32 04/24/24 12:48 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2276391 1 04/29/24 08:54 04/29/24 18:50 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-210_041624 L1728021-03 Solid Annie Matzke 04/16/24 13:36 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273412 1 04/24/24 12:32 04/24/24 12:48 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2276391 1 04/29/24 08:54 04/29/24 18:52 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-205_041624 L1728021-04 Solid Annie Matzke 04/16/24 12:46 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273412 1 04/24/24 12:32 04/24/24 12:48 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2276391 1 04/29/24 08:54 04/29/24 18:53 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-73_041724 L1728021-05 Solid Annie Matzke 04/17/24 14:00 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273412 1 04/24/24 12:32 04/24/24 12:48 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:38 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-75_041724 L1728021-06 Solid Annie Matzke 04/17/24 16:00 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273412 1 04/24/24 12:32 04/24/24 12:48 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:40 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-72_041724 L1728021-07 Solid Annie Matzke 04/17/24 13:00 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273412 1 04/24/24 12:32 04/24/24 12:48 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:41 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 3 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 3 of 35 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-74_041724 L1728021-08 Solid Annie Matzke 04/17/24 15:00 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273412 1 04/24/24 12:32 04/24/24 12:48 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:46 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-8 L1728021-09 Solid Annie Matzke 04/16/24 13:45 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273431 1 04/25/24 09:52 04/25/24 10:05 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:48 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-204_041624 L1728021-10 Solid Annie Matzke 04/16/24 12:40 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273431 1 04/25/24 09:52 04/25/24 10:05 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:50 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-203_041624 L1728021-11 Solid Annie Matzke 04/16/24 12:34 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273431 1 04/25/24 09:52 04/25/24 10:05 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:51 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-208_041624 L1728021-12 Solid Annie Matzke 04/16/24 13:26 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273431 1 04/25/24 09:52 04/25/24 10:05 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:53 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-209_041624 L1728021-13 Solid Annie Matzke 04/16/24 13:33 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273431 1 04/25/24 09:52 04/25/24 10:05 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:55 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-216_041624 L1728021-14 Solid Annie Matzke 04/16/24 12:41 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273431 1 04/25/24 09:52 04/25/24 10:05 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:56 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 4 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 4 of 35 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-211_041824 L1728021-15 Solid Annie Matzke 04/18/24 12:22 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273431 1 04/25/24 09:52 04/25/24 10:05 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2276391 1 04/29/24 08:54 04/29/24 18:55 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-215_041824 L1728021-16 Solid Annie Matzke 04/18/24 12:38 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273431 1 04/25/24 09:52 04/25/24 10:05 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274195 1 04/26/24 07:32 04/26/24 18:18 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-213_041824 L1728021-17 Solid Annie Matzke 04/18/24 12:30 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273431 1 04/25/24 09:52 04/25/24 10:05 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274195 1 04/26/24 07:32 04/26/24 18:19 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-214_041824 L1728021-18 Solid Annie Matzke 04/18/24 12:35 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273431 1 04/25/24 09:52 04/25/24 10:05 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:58 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-212_041824 L1728021-19 Solid Annie Matzke 04/18/24 12:26 04/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2273433 1 04/25/24 11:11 04/25/24 11:22 JAV Mt. Juliet, TN Metals (ICP) by Method 6010B WG2274200 1 04/25/24 13:45 04/26/24 17:59 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 5 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 5 of 35 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 6 of 35 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 6 of 35 SAMPLE RESULTS - 01 L1728021 SP-207_041624 Collected date/time: 04/16/24 13:19 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.4 1 04/24/2024 12:48 WG2273412 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.8 2.24 1 04/29/2024 18:48 WG2276391 Lead 146 0.559 1 04/29/2024 18:48 WG2276391 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 7 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 7 of 35 SAMPLE RESULTS - 02 L1728021 SP-206_041624 Collected date/time: 04/16/24 12:57 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.4 1 04/24/2024 12:48 WG2273412 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.4 2.34 1 04/29/2024 18:50 WG2276391 Lead 113 0.585 1 04/29/2024 18:50 WG2276391 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 8 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 8 of 35 SAMPLE RESULTS - 03 L1728021 SP-210_041624 Collected date/time: 04/16/24 13:36 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.3 1 04/24/2024 12:48 WG2273412 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 15.6 2.21 1 04/29/2024 18:52 WG2276391 Lead 216 0.554 1 04/29/2024 18:52 WG2276391 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 9 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 9 of 35 SAMPLE RESULTS - 04 L1728021 SP-205_041624 Collected date/time: 04/16/24 12:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.7 1 04/24/2024 12:48 WG2273412 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.0 2.25 1 04/29/2024 18:53 WG2276391 Lead 196 0.564 1 04/29/2024 18:53 WG2276391 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 10 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 10 of 35 SAMPLE RESULTS - 05 L1728021 CS-73_041724 Collected date/time: 04/17/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.0 1 04/24/2024 12:48 WG2273412 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.8 2.22 1 04/26/2024 17:38 WG2274200 Lead 121 0.555 1 04/26/2024 17:38 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 11 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 11 of 35 SAMPLE RESULTS - 06 L1728021 CS-75_041724 Collected date/time: 04/17/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.1 1 04/24/2024 12:48 WG2273412 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.8 2.22 1 04/26/2024 17:40 WG2274200 Lead 89.5 0.555 1 04/26/2024 17:40 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 12 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 12 of 35 SAMPLE RESULTS - 07 L1728021 CS-72_041724 Collected date/time: 04/17/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.9 1 04/24/2024 12:48 WG2273412 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.22 2.18 1 04/26/2024 17:41 WG2274200 Lead 74.2 0.544 1 04/26/2024 17:41 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 13 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 13 of 35 SAMPLE RESULTS - 08 L1728021 CS-74_041724 Collected date/time: 04/17/24 15:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.2 1 04/24/2024 12:48 WG2273412 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.78 2.22 1 04/26/2024 17:46 WG2274200 Lead 56.0 0.554 1 04/26/2024 17:46 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 14 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 14 of 35 SAMPLE RESULTS - 09 L1728021 SP-DUP-8 Collected date/time: 04/16/24 13:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.5 1 04/25/2024 10:05 WG2273431 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.6 2.26 1 04/26/2024 17:48 WG2274200 Lead 211 0.565 1 04/26/2024 17:48 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 15 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 15 of 35 SAMPLE RESULTS - 10 L1728021 SP-204_041624 Collected date/time: 04/16/24 12:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.7 1 04/25/2024 10:05 WG2273431 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.0 2.28 1 04/26/2024 17:50 WG2274200 Lead 200 0.570 1 04/26/2024 17:50 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 16 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 16 of 35 SAMPLE RESULTS - 11 L1728021 SP-203_041624 Collected date/time: 04/16/24 12:34 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.0 1 04/25/2024 10:05 WG2273431 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.1 2.15 1 04/26/2024 17:51 WG2274200 Lead 118 0.538 1 04/26/2024 17:51 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 17 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 17 of 35 SAMPLE RESULTS - 12 L1728021 SP-208_041624 Collected date/time: 04/16/24 13:26 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.4 1 04/25/2024 10:05 WG2273431 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.6 2.26 1 04/26/2024 17:53 WG2274200 Lead 133 0.566 1 04/26/2024 17:53 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 18 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 18 of 35 SAMPLE RESULTS - 13 L1728021 SP-209_041624 Collected date/time: 04/16/24 13:33 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.3 1 04/25/2024 10:05 WG2273431 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.8 2.24 1 04/26/2024 17:55 WG2274200 Lead 196 0.560 1 04/26/2024 17:55 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 19 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 19 of 35 SAMPLE RESULTS - 14 L1728021 SP-216_041624 Collected date/time: 04/16/24 12:41 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.7 1 04/25/2024 10:05 WG2273431 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.2 2.28 1 04/26/2024 17:56 WG2274200 Lead 250 0.570 1 04/26/2024 17:56 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 20 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 20 of 35 SAMPLE RESULTS - 15 L1728021 SP-211_041824 Collected date/time: 04/18/24 12:22 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.8 1 04/25/2024 10:05 WG2273431 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.81 2.20 1 04/29/2024 18:55 WG2276391 Lead 48.0 0.550 1 04/29/2024 18:55 WG2276391 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 21 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 21 of 35 SAMPLE RESULTS - 16 L1728021 SP-215_041824 Collected date/time: 04/18/24 12:38 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.4 1 04/25/2024 10:05 WG2273431 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.4 2.21 1 04/26/2024 18:18 WG2274195 Lead 170 0.553 1 04/26/2024 18:18 WG2274195 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 22 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 22 of 35 SAMPLE RESULTS - 17 L1728021 SP-213_041824 Collected date/time: 04/18/24 12:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.7 1 04/25/2024 10:05 WG2273431 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.3 2.26 1 04/26/2024 18:19 WG2274195 Lead 64.0 0.564 1 04/26/2024 18:19 WG2274195 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 23 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 23 of 35 SAMPLE RESULTS - 18 L1728021 SP-214_041824 Collected date/time: 04/18/24 12:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.8 1 04/25/2024 10:05 WG2273431 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.3 2.30 1 04/26/2024 17:58 WG2274200 Lead 61.8 0.576 1 04/26/2024 17:58 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 24 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 24 of 35 SAMPLE RESULTS - 19 L1728021 SP-212_041824 Collected date/time: 04/18/24 12:26 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.6 1 04/25/2024 11:22 WG2273433 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.64 2.18 1 04/26/2024 17:59 WG2274200 Lead 53.4 0.546 1 04/26/2024 17:59 WG2274200 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 25 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 25 of 35 QUALITY CONTROL SUMMARYWG2273412 Total Solids by Method 2540 G-2011 L1728021-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R4061831-1 04/24/24 12:48 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1728021-03 Original Sample (OS) • Duplicate (DUP) (OS) L1728021-03 04/24/24 12:48 • (DUP) R4061831-3 04/24/24 12:48 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 90.3 89.0 1 1.43 10 Laboratory Control Sample (LCS) (LCS) R4061831-2 04/24/24 12:48 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 26 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 26 of 35 QUALITY CONTROL SUMMARYWG2273431 Total Solids by Method 2540 G-2011 L1728021-09,10,11,12,13,14,15,16,17,18 Method Blank (MB) (MB) R4062353-1 04/25/24 10:05 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1728021-13 Original Sample (OS) • Duplicate (DUP) (OS) L1728021-13 04/25/24 10:05 • (DUP) R4062353-3 04/25/24 10:05 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 89.3 87.9 1 1.60 10 Laboratory Control Sample (LCS) (LCS) R4062353-2 04/25/24 10:05 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 27 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 27 of 35 QUALITY CONTROL SUMMARYWG2273433 Total Solids by Method 2540 G-2011 L1728021-19 Method Blank (MB) (MB) R4062406-1 04/25/24 11:22 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1728030-17 Original Sample (OS) • Duplicate (DUP) (OS) L1728030-17 04/25/24 11:22 • (DUP) R4062406-3 04/25/24 11:22 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 73.0 72.4 1 0.786 10 Laboratory Control Sample (LCS) (LCS) R4062406-2 04/25/24 11:22 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 28 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 28 of 35 QUALITY CONTROL SUMMARYWG2274195 Metals (ICP) by Method 6010B L1728021-16,17 Method Blank (MB) (MB) R4062814-1 04/26/24 18:06 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4062814-2 04/26/24 18:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 89.2 89.2 80.0-120 Lead 100 90.6 90.6 80.0-120 L1728394-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1728394-07 04/26/24 18:09 • (MS) R4062814-5 04/26/24 18:14 • (MSD) R4062814-6 04/26/24 18:16 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 113 7.81 107 106 88.3 86.8 1 75.0-125 1.64 20 Lead 113 10.4 113 112 91.4 90.0 1 75.0-125 1.38 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 29 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 29 of 35 QUALITY CONTROL SUMMARYWG2274200 Metals (ICP) by Method 6010B L1728021-05,06,07,08,09,10,11,12,13,14,18,19 Method Blank (MB) (MB) R4062813-1 04/26/24 17:26 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4062813-2 04/26/24 17:28 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 107 107 80.0-120 Lead 100 110 110 80.0-120 L1728565-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1728565-01 04/26/24 17:30 • (MS) R4062813-5 04/26/24 17:35 • (MSD) R4062813-6 04/26/24 17:36 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 ND 74.8 73.5 74.8 73.5 1 75.0-125 J6 J6 1.78 20 Lead 100 26.3 113 112 87.2 85.9 1 75.0-125 1.12 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 30 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 30 of 35 QUALITY CONTROL SUMMARYWG2276391 Metals (ICP) by Method 6010B L1728021-01,02,03,04,15 Method Blank (MB) (MB) R4063589-1 04/29/24 18:26 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4063589-2 04/29/24 18:28 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 91.6 91.6 80.0-120 Lead 100 92.7 92.7 80.0-120 L1728008-16 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1728008-16 04/29/24 18:29 • (MS) R4063589-5 04/29/24 18:34 • (MSD) R4063589-6 04/29/24 18:36 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 127 6.23 114 113 84.9 84.0 1 75.0-125 1.05 20 Lead 127 12.2 123 124 87.1 88.1 1 75.0-125 1.03 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 31 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 31 of 35 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 32 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 32 of 35 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/29/24 22:19 33 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1728021 04/30/24 09:12 33 of 35 ANALYTICAL REPORT May 01, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1729502 Samples Received:04/25/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: May 01, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 1 of 33 May 01, 2024 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 1 of 33 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-217_041824 L1729502-01 7 SP-218_041824 L1729502-02 8 SP-219_041824 L1729502-03 9 CS-76_042224 L1729502-04 10 CS-77_042224 L1729502-05 11 CS-78_042224 L1729502-06 12 CS-79_042324 L1729502-07 13 CS-80_042324 L1729502-08 14 DUP-8 L1729502-09 15 SP-220_042424 L1729502-10 16 SP-221_042424 L1729502-11 17 SP-222_042424 L1729502-12 18 SP-223_042424 L1729502-13 19 SP-224_042424 L1729502-14 20 SP-225_042424 L1729502-15 21 SP-226_042424 L1729502-16 22 SP-227_042424 L1729502-17 23 SP-DUP-9 L1729502-18 24 Qc: Quality Control Summary 25 Total Solids by Method 2540 G-2011 25 Metals (ICP) by Method 6010B 28 Gl: Glossary of Terms 30 Al: Accreditations & Locations 31 Sc: Sample Chain of Custody 32 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 2 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 2 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-217_041824 L1729502-01 Solid Annie Matzke 04/18/24 15:04 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275611 1 04/29/24 09:24 04/29/24 09:30 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 22:57 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-218_041824 L1729502-02 Solid Annie Matzke 04/18/24 15:07 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275611 1 04/29/24 09:24 04/29/24 09:30 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:00 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-219_041824 L1729502-03 Solid Annie Matzke 04/18/24 15:11 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275611 1 04/29/24 09:24 04/29/24 09:30 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:04 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-76_042224 L1729502-04 Solid Annie Matzke 04/22/24 13:25 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275612 1 04/29/24 09:15 04/29/24 09:22 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:14 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-77_042224 L1729502-05 Solid Annie Matzke 04/22/24 14:57 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275612 1 04/29/24 09:15 04/29/24 09:22 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:18 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-78_042224 L1729502-06 Solid Annie Matzke 04/22/24 16:00 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275612 1 04/29/24 09:15 04/29/24 09:22 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:21 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-79_042324 L1729502-07 Solid Annie Matzke 04/23/24 10:00 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275612 1 04/29/24 09:15 04/29/24 09:22 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:25 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 3 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 3 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-80_042324 L1729502-08 Solid Annie Matzke 04/23/24 11:20 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275612 1 04/29/24 09:15 04/29/24 09:22 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:29 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-8 L1729502-09 Solid Annie Matzke 04/23/24 16:00 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275612 1 04/29/24 09:15 04/29/24 09:22 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:32 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-220_042424 L1729502-10 Solid Annie Matzke 04/24/24 12:00 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275612 1 04/29/24 09:15 04/29/24 09:22 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:36 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-221_042424 L1729502-11 Solid Annie Matzke 04/24/24 09:50 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275612 1 04/29/24 09:15 04/29/24 09:22 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:39 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-222_042424 L1729502-12 Solid Annie Matzke 04/24/24 10:00 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275612 1 04/29/24 09:15 04/29/24 09:22 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:43 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-223_042424 L1729502-13 Solid Annie Matzke 04/24/24 11:38 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275612 1 04/29/24 09:15 04/29/24 09:22 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:46 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-224_042424 L1729502-14 Solid Annie Matzke 04/24/24 11:42 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275613 1 04/29/24 09:07 04/29/24 09:13 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275742 1 04/30/24 22:53 05/01/24 08:31 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 4 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 4 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-225_042424 L1729502-15 Solid Annie Matzke 04/24/24 11:47 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275613 1 04/29/24 09:07 04/29/24 09:13 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/28/24 23:57 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-226_042424 L1729502-16 Solid Annie Matzke 04/24/24 11:51 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275613 1 04/29/24 09:07 04/29/24 09:13 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275738 1 04/28/24 08:36 04/29/24 00:01 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-227_042424 L1729502-17 Solid Annie Matzke 04/24/24 11:58 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275613 1 04/29/24 09:07 04/29/24 09:13 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275742 1 04/30/24 22:53 05/01/24 09:14 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-9 L1729502-18 Solid Annie Matzke 04/24/24 12:00 04/25/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2275613 1 04/29/24 09:07 04/29/24 09:13 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2275742 1 04/30/24 22:53 05/01/24 09:17 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 5 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 5 of 33 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 6 of 33 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 6 of 33 SAMPLE RESULTS - 01 L1729502 SP-217_041824 Collected date/time: 04/18/24 15:04 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.8 1 04/29/2024 09:30 WG2275611 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.8 2.28 1 04/28/2024 22:57 WG2275738 Lead 158 0.569 1 04/28/2024 22:57 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 7 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 7 of 33 SAMPLE RESULTS - 02 L1729502 SP-218_041824 Collected date/time: 04/18/24 15:07 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.0 1 04/29/2024 09:30 WG2275611 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 15.9 2.27 1 04/28/2024 23:00 WG2275738 Lead 243 0.568 1 04/28/2024 23:00 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 8 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 8 of 33 SAMPLE RESULTS - 03 L1729502 SP-219_041824 Collected date/time: 04/18/24 15:11 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.7 1 04/29/2024 09:30 WG2275611 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 21.2 2.28 1 04/28/2024 23:04 WG2275738 Lead 330 0.570 1 04/28/2024 23:04 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 9 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 9 of 33 SAMPLE RESULTS - 04 L1729502 CS-76_042224 Collected date/time: 04/22/24 13:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.9 1 04/29/2024 09:22 WG2275612 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 7.80 2.15 1 04/28/2024 23:14 WG2275738 Lead 52.4 0.538 1 04/28/2024 23:14 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 10 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 10 of 33 SAMPLE RESULTS - 05 L1729502 CS-77_042224 Collected date/time: 04/22/24 14:57 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.1 1 04/29/2024 09:22 WG2275612 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.82 2.17 1 04/28/2024 23:18 WG2275738 Lead 80.2 0.543 1 04/28/2024 23:18 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 11 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 11 of 33 SAMPLE RESULTS - 06 L1729502 CS-78_042224 Collected date/time: 04/22/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.1 1 04/29/2024 09:22 WG2275612 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 7.91 2.17 1 04/28/2024 23:21 WG2275738 Lead 38.6 0.543 1 04/28/2024 23:21 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 12 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 12 of 33 SAMPLE RESULTS - 07 L1729502 CS-79_042324 Collected date/time: 04/23/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.7 1 04/29/2024 09:22 WG2275612 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.8 2.13 1 04/28/2024 23:25 WG2275738 Lead 80.7 0.534 1 04/28/2024 23:25 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 13 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 13 of 33 SAMPLE RESULTS - 08 L1729502 CS-80_042324 Collected date/time: 04/23/24 11:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.3 1 04/29/2024 09:22 WG2275612 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 17.7 2.10 1 04/28/2024 23:29 WG2275738 Lead 167 0.525 1 04/28/2024 23:29 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 14 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 14 of 33 SAMPLE RESULTS - 09 L1729502 DUP-8 Collected date/time: 04/23/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.4 1 04/29/2024 09:22 WG2275612 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 15.6 2.10 1 04/28/2024 23:32 WG2275738 Lead 181 0.524 1 04/28/2024 23:32 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 15 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 15 of 33 SAMPLE RESULTS - 10 L1729502 SP-220_042424 Collected date/time: 04/24/24 12:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.4 1 04/29/2024 09:22 WG2275612 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 19.2 2.21 1 04/28/2024 23:36 WG2275738 Lead 269 0.553 1 04/28/2024 23:36 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 16 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 16 of 33 SAMPLE RESULTS - 11 L1729502 SP-221_042424 Collected date/time: 04/24/24 09:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.2 1 04/29/2024 09:22 WG2275612 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 22.4 2.24 1 04/28/2024 23:39 WG2275738 Lead 599 0.561 1 04/28/2024 23:39 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 17 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 17 of 33 SAMPLE RESULTS - 12 L1729502 SP-222_042424 Collected date/time: 04/24/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.5 1 04/29/2024 09:22 WG2275612 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 20.8 2.23 1 04/28/2024 23:43 WG2275738 Lead 507 0.558 1 04/28/2024 23:43 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 18 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 18 of 33 SAMPLE RESULTS - 13 L1729502 SP-223_042424 Collected date/time: 04/24/24 11:38 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.7 1 04/29/2024 09:22 WG2275612 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 21.0 2.23 1 04/28/2024 23:46 WG2275738 Lead 525 0.558 1 04/28/2024 23:46 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 19 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 19 of 33 SAMPLE RESULTS - 14 L1729502 SP-224_042424 Collected date/time: 04/24/24 11:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.9 1 04/29/2024 09:13 WG2275613 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 21.7 2.22 1 05/01/2024 08:31 WG2275742 Lead 605 O1 0.556 1 05/01/2024 08:31 WG2275742 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 20 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 20 of 33 SAMPLE RESULTS - 15 L1729502 SP-225_042424 Collected date/time: 04/24/24 11:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.4 1 04/29/2024 09:13 WG2275613 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 21.3 2.21 1 04/28/2024 23:57 WG2275738 Lead 533 0.553 1 04/28/2024 23:57 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 21 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 21 of 33 SAMPLE RESULTS - 16 L1729502 SP-226_042424 Collected date/time: 04/24/24 11:51 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.1 1 04/29/2024 09:13 WG2275613 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 25.6 2.22 1 04/29/2024 00:01 WG2275738 Lead 718 0.555 1 04/29/2024 00:01 WG2275738 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 22 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 22 of 33 SAMPLE RESULTS - 17 L1729502 SP-227_042424 Collected date/time: 04/24/24 11:58 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.4 1 04/29/2024 09:13 WG2275613 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 22.3 2.24 1 05/01/2024 09:14 WG2275742 Lead 482 0.559 1 05/01/2024 09:14 WG2275742 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 23 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 23 of 33 SAMPLE RESULTS - 18 L1729502 SP-DUP-9 Collected date/time: 04/24/24 12:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.3 1 04/29/2024 09:13 WG2275613 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 17.2 2.21 1 05/01/2024 09:17 WG2275742 Lead 249 0.554 1 05/01/2024 09:17 WG2275742 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 24 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 24 of 33 QUALITY CONTROL SUMMARYWG2275611 Total Solids by Method 2540 G-2011 L1729502-01,02,03 Method Blank (MB) (MB) R4063725-1 04/29/24 09:30 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1729500-12 Original Sample (OS) • Duplicate (DUP) (OS) L1729500-12 04/29/24 09:30 • (DUP) R4063725-3 04/29/24 09:30 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 73.3 73.9 1 0.890 10 Laboratory Control Sample (LCS) (LCS) R4063725-2 04/29/24 09:30 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 25 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 25 of 33 QUALITY CONTROL SUMMARYWG2275612 Total Solids by Method 2540 G-2011 L1729502-04,05,06,07,08,09,10,11,12,13 Method Blank (MB) (MB) R4063721-1 04/29/24 09:22 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1729502-04 Original Sample (OS) • Duplicate (DUP) (OS) L1729502-04 04/29/24 09:22 • (DUP) R4063721-3 04/29/24 09:22 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 92.9 92.6 1 0.359 10 Laboratory Control Sample (LCS) (LCS) R4063721-2 04/29/24 09:22 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 26 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 26 of 33 QUALITY CONTROL SUMMARYWG2275613 Total Solids by Method 2540 G-2011 L1729502-14,15,16,17,18 Method Blank (MB) (MB) R4063713-1 04/29/24 09:13 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1729502-14 Original Sample (OS) • Duplicate (DUP) (OS) L1729502-14 04/29/24 09:13 • (DUP) R4063713-3 04/29/24 09:13 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 89.9 90.1 1 0.161 10 Laboratory Control Sample (LCS) (LCS) R4063713-2 04/29/24 09:13 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 27 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 27 of 33 QUALITY CONTROL SUMMARYWG2275738 Metals (ICP) by Method 6010B L1729502-01,02,03,04,05,06,07,08,09,10,11,12,13,15,16 Method Blank (MB) (MB) R4063142-1 04/28/24 22:32 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4063142-2 04/28/24 22:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 84.6 84.6 80.0-120 Lead 100 90.3 90.3 80.0-120 L1729573-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1729573-05 04/28/24 22:39 • (MS) R4063142-5 04/28/24 22:50 • (MSD) R4063142-6 04/28/24 22:53 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg %%%%% Arsenic 120 4.42 107 96.7 85.0 76.8 1 75.0-125 9.65 20 Lead 120 16.6 122 112 87.7 79.7 1 75.0-125 8.18 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 28 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 28 of 33 QUALITY CONTROL SUMMARYWG2275742 Metals (ICP) by Method 6010B L1729502-14,17,18 Method Blank (MB) (MB) R4064438-1 05/01/24 08:26 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4064438-2 05/01/24 08:28 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 95.4 95.4 80.0-120 Lead 100 95.3 95.3 80.0-120 L1729502-14 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1729502-14 05/01/24 08:31 • (MS) R4064438-5 05/01/24 08:40 • (MSD) R4064438-6 05/01/24 08:42 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 111 21.7 119 124 87.5 92.2 1 75.0-125 4.35 20 Lead 111 605 733 712 115 96.3 1 75.0-125 2.96 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 29 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 29 of 33 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description O1 The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 30 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 30 of 33 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 13:59 31 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1729502 05/01/24 15:59 31 of 33 ANALYTICAL REPORT May 06, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1731851 Samples Received:05/02/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: May 06, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 13:11 1 of 11 May 06, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 16:34 1 of 11 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 DOZER-01 L1731851-01 5 DOZER-02 L1731851-02 6 Qc: Quality Control Summary 7 Total Solids by Method 2540 G-2011 7 Metals (ICP) by Method 6010B 8 Gl: Glossary of Terms 9 Al: Accreditations & Locations 10 Sc: Sample Chain of Custody 11 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 13:11 2 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 16:34 2 of 11 SAMPLE SUMMARY Collected by Collected date/time Received date/time DOZER-01 L1731851-01 Solid Annie Matzke 04/30/24 15:13 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279415 1 05/03/24 08:25 05/03/24 08:33 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 11:31 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time DOZER-02 L1731851-02 Solid Annie Matzke 04/30/24 14:30 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279415 1 05/03/24 08:25 05/03/24 08:33 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 11:34 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 13:11 3 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 16:34 3 of 11 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 13:11 4 of 11 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 16:34 4 of 11 SAMPLE RESULTS - 01 L1731851 DOZER-01 Collected date/time: 04/30/24 15:13 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.6 1 05/03/2024 08:33 WG2279415 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.7 2.23 1 05/04/2024 11:31 WG2279475 Lead 225 0.558 1 05/04/2024 11:31 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 13:11 5 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 16:34 5 of 11 SAMPLE RESULTS - 02 L1731851 DOZER-02 Collected date/time: 04/30/24 14:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.0 1 05/03/2024 08:33 WG2279415 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 7.95 2.30 1 05/04/2024 11:34 WG2279475 Lead 92.4 0.575 1 05/04/2024 11:34 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 13:11 6 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 16:34 6 of 11 QUALITY CONTROL SUMMARYWG2279415 Total Solids by Method 2540 G-2011 L1731851-01,02 Method Blank (MB) (MB) R4065755-1 05/03/24 08:33 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1731851-01 Original Sample (OS) • Duplicate (DUP) (OS) L1731851-01 05/03/24 08:33 • (DUP) R4065755-3 05/03/24 08:33 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 89.6 90.2 1 0.697 10 Laboratory Control Sample (LCS) (LCS) R4065755-2 05/03/24 08:33 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 13:11 7 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 16:34 7 of 11 QUALITY CONTROL SUMMARYWG2279475 Metals (ICP) by Method 6010B L1731851-01,02 Method Blank (MB) (MB) R4065816-1 05/04/24 11:12 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4065816-2 05/04/24 11:14 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 91.4 91.4 80.0-120 Lead 100 91.9 91.9 80.0-120 L1731854-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1731854-04 05/04/24 11:17 • (MS) R4065816-5 05/04/24 11:26 • (MSD) R4065816-6 05/04/24 11:28 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 117 10.3 116 110 90.7 85.5 1 75.0-125 5.28 20 Lead 117 137 290 203 131 56.9 1 75.0-125 J5 J3 J6 35.2 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 13:11 8 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 16:34 8 of 11 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J3 The associated batch QC was outside the established quality control range for precision. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 13:11 9 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 16:34 9 of 11 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 13:11 10 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731851 05/06/24 16:34 10 of 11 ANALYTICAL REPORT May 06, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1731854 Samples Received:05/02/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: May 06, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 1 of 39 May 06, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 1 of 39 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 7 Sr: Sample Results 8 SP-246_050124 L1731854-01 8 SP-247_050124 L1731854-02 9 SP-248_050124 L1731854-03 10 SP-249_050124 L1731854-04 11 SP-250_050124 L1731854-05 12 SP-251_050124 L1731854-06 13 SP-252_050124 L1731854-07 14 SP-253_050124 L1731854-08 15 SP-254_050124 L1731854-09 16 SP-255_050124 L1731854-10 17 SP-256_050124 L1731854-11 18 SP-257_050124 L1731854-12 19 SP-258_050124 L1731854-13 20 SP-259_050124 L1731854-14 21 SP-260_050124 L1731854-15 22 SP-261_050124 L1731854-16 23 SP-262_050124 L1731854-17 24 SP-263_050124 L1731854-18 25 SP-264_050124 L1731854-19 26 SP-265_050124 L1731854-20 27 SP-DUP-12 L1731854-21 28 SP-DUP-13 L1731854-22 29 Qc: Quality Control Summary 30 Total Solids by Method 2540 G-2011 30 Metals (ICP) by Method 6010B 33 Gl: Glossary of Terms 35 Al: Accreditations & Locations 36 Sc: Sample Chain of Custody 37 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 2 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 2 of 39 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-246_050124 L1731854-01 Solid Annie Matzke 05/01/24 10:10 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279415 1 05/03/24 08:25 05/03/24 08:33 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 11:37 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-247_050124 L1731854-02 Solid Annie Matzke 05/01/24 10:15 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279415 1 05/03/24 08:25 05/03/24 08:33 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 11:46 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-248_050124 L1731854-03 Solid Annie Matzke 05/01/24 10:22 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279415 1 05/03/24 08:25 05/03/24 08:33 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 11:49 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-249_050124 L1731854-04 Solid Annie Matzke 05/01/24 10:27 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279415 1 05/03/24 08:25 05/03/24 08:33 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 11:17 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-250_050124 L1731854-05 Solid Annie Matzke 05/01/24 10:33 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279415 1 05/03/24 08:25 05/03/24 08:33 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 11:52 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-251_050124 L1731854-06 Solid Annie Matzke 05/01/24 10:37 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279416 1 05/03/24 08:14 05/03/24 08:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 11:54 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-252_050124 L1731854-07 Solid Annie Matzke 05/01/24 11:33 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279416 1 05/03/24 08:14 05/03/24 08:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 11:57 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 3 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 3 of 39 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-253_050124 L1731854-08 Solid Annie Matzke 05/01/24 11:37 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279416 1 05/03/24 08:14 05/03/24 08:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 12:00 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-254_050124 L1731854-09 Solid Annie Matzke 05/01/24 11:42 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279416 1 05/03/24 08:14 05/03/24 08:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 12:03 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-255_050124 L1731854-10 Solid Annie Matzke 05/01/24 11:46 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279416 1 05/03/24 08:14 05/03/24 08:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 12:06 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-256_050124 L1731854-11 Solid Annie Matzke 05/01/24 12:23 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279416 1 05/03/24 08:14 05/03/24 08:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 12:09 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-257_050124 L1731854-12 Solid Annie Matzke 05/01/24 12:27 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279416 1 05/03/24 08:14 05/03/24 08:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 12:12 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-258_050124 L1731854-13 Solid Annie Matzke 05/01/24 12:32 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279416 1 05/03/24 08:14 05/03/24 08:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 12:20 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-259_050124 L1731854-14 Solid Annie Matzke 05/01/24 12:42 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279416 1 05/03/24 08:14 05/03/24 08:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 12:23 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 4 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 4 of 39 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-260_050124 L1731854-15 Solid Annie Matzke 05/01/24 12:44 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279416 1 05/03/24 08:14 05/03/24 08:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 12:26 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-261_050124 L1731854-16 Solid Annie Matzke 05/01/24 12:54 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279417 1 05/03/24 08:06 05/03/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279475 1 05/04/24 02:56 05/04/24 12:29 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-262_050124 L1731854-17 Solid Annie Matzke 05/01/24 12:57 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279417 1 05/03/24 08:06 05/03/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279472 1 05/04/24 02:55 05/04/24 13:26 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-263_050124 L1731854-18 Solid Annie Matzke 05/01/24 13:00 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279417 1 05/03/24 08:06 05/03/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279472 1 05/04/24 02:55 05/04/24 13:29 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-264_050124 L1731854-19 Solid Annie Matzke 05/01/24 13:03 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279417 1 05/03/24 08:06 05/03/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279472 1 05/04/24 02:55 05/04/24 13:37 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-265_050124 L1731854-20 Solid Annie Matzke 05/01/24 11:48 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279417 1 05/03/24 08:06 05/03/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279472 1 05/04/24 02:55 05/04/24 13:40 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-12 L1731854-21 Solid Annie Matzke 05/01/24 13:50 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279417 1 05/03/24 08:06 05/03/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279472 1 05/04/24 02:55 05/04/24 12:50 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 5 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 5 of 39 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-DUP-13 L1731854-22 Solid Annie Matzke 05/01/24 13:50 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279417 1 05/03/24 08:06 05/03/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279472 1 05/04/24 02:55 05/04/24 13:43 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 6 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 6 of 39 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 7 of 39 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 7 of 39 SAMPLE RESULTS - 01 L1731854 SP-246_050124 Collected date/time: 05/01/24 10:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.7 1 05/03/2024 08:33 WG2279415 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 15.0 2.36 1 05/04/2024 11:37 WG2279475 Lead 247 0.590 1 05/04/2024 11:37 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 8 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 8 of 39 SAMPLE RESULTS - 02 L1731854 SP-247_050124 Collected date/time: 05/01/24 10:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.3 1 05/03/2024 08:33 WG2279415 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 6.20 2.37 1 05/04/2024 11:46 WG2279475 Lead 56.0 0.593 1 05/04/2024 11:46 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 9 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 9 of 39 SAMPLE RESULTS - 03 L1731854 SP-248_050124 Collected date/time: 05/01/24 10:22 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.4 1 05/03/2024 08:33 WG2279415 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 7.15 2.29 1 05/04/2024 11:49 WG2279475 Lead 65.0 0.572 1 05/04/2024 11:49 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 10 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 10 of 39 SAMPLE RESULTS - 04 L1731854 SP-249_050124 Collected date/time: 05/01/24 10:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.8 1 05/03/2024 08:33 WG2279415 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.3 2.33 1 05/04/2024 11:17 WG2279475 Lead 137 J3 J5 J6 0.583 1 05/04/2024 11:17 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 11 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 11 of 39 SAMPLE RESULTS - 05 L1731854 SP-250_050124 Collected date/time: 05/01/24 10:33 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.3 1 05/03/2024 08:33 WG2279415 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.6 2.32 1 05/04/2024 11:52 WG2279475 Lead 180 0.579 1 05/04/2024 11:52 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 12 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 12 of 39 SAMPLE RESULTS - 06 L1731854 SP-251_050124 Collected date/time: 05/01/24 10:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.9 1 05/03/2024 08:24 WG2279416 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 17.4 2.33 1 05/04/2024 11:54 WG2279475 Lead 320 0.582 1 05/04/2024 11:54 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 13 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 13 of 39 SAMPLE RESULTS - 07 L1731854 SP-252_050124 Collected date/time: 05/01/24 11:33 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.0 1 05/03/2024 08:24 WG2279416 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.6 2.30 1 05/04/2024 11:57 WG2279475 Lead 378 0.575 1 05/04/2024 11:57 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 14 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 14 of 39 SAMPLE RESULTS - 08 L1731854 SP-253_050124 Collected date/time: 05/01/24 11:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.2 1 05/03/2024 08:24 WG2279416 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.3 2.35 1 05/04/2024 12:00 WG2279475 Lead 241 0.587 1 05/04/2024 12:00 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 15 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 15 of 39 SAMPLE RESULTS - 09 L1731854 SP-254_050124 Collected date/time: 05/01/24 11:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.1 1 05/03/2024 08:24 WG2279416 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.99 2.32 1 05/04/2024 12:03 WG2279475 Lead 74.0 0.580 1 05/04/2024 12:03 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 16 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 16 of 39 SAMPLE RESULTS - 10 L1731854 SP-255_050124 Collected date/time: 05/01/24 11:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.5 1 05/03/2024 08:24 WG2279416 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.3 2.37 1 05/04/2024 12:06 WG2279475 Lead 151 0.591 1 05/04/2024 12:06 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 17 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 17 of 39 SAMPLE RESULTS - 11 L1731854 SP-256_050124 Collected date/time: 05/01/24 12:23 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.7 1 05/03/2024 08:24 WG2279416 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 7.96 2.31 1 05/04/2024 12:09 WG2279475 Lead 130 0.577 1 05/04/2024 12:09 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 18 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 18 of 39 SAMPLE RESULTS - 12 L1731854 SP-257_050124 Collected date/time: 05/01/24 12:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.1 1 05/03/2024 08:24 WG2279416 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.43 2.32 1 05/04/2024 12:12 WG2279475 Lead 105 0.580 1 05/04/2024 12:12 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 19 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 19 of 39 SAMPLE RESULTS - 13 L1731854 SP-258_050124 Collected date/time: 05/01/24 12:32 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.1 1 05/03/2024 08:24 WG2279416 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.9 2.30 1 05/04/2024 12:20 WG2279475 Lead 229 0.574 1 05/04/2024 12:20 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 20 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 20 of 39 SAMPLE RESULTS - 14 L1731854 SP-259_050124 Collected date/time: 05/01/24 12:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.4 1 05/03/2024 08:24 WG2279416 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.3 2.34 1 05/04/2024 12:23 WG2279475 Lead 142 0.585 1 05/04/2024 12:23 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 21 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 21 of 39 SAMPLE RESULTS - 15 L1731854 SP-260_050124 Collected date/time: 05/01/24 12:44 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.6 1 05/03/2024 08:24 WG2279416 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.82 2.26 1 05/04/2024 12:26 WG2279475 Lead 168 0.564 1 05/04/2024 12:26 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 22 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 22 of 39 SAMPLE RESULTS - 16 L1731854 SP-261_050124 Collected date/time: 05/01/24 12:54 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.5 1 05/03/2024 08:12 WG2279417 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.0 2.31 1 05/04/2024 12:29 WG2279475 Lead 235 0.578 1 05/04/2024 12:29 WG2279475 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 23 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 23 of 39 SAMPLE RESULTS - 17 L1731854 SP-262_050124 Collected date/time: 05/01/24 12:57 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.5 1 05/03/2024 08:12 WG2279417 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.6 2.29 1 05/04/2024 13:26 WG2279472 Lead 221 0.571 1 05/04/2024 13:26 WG2279472 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 24 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 24 of 39 SAMPLE RESULTS - 18 L1731854 SP-263_050124 Collected date/time: 05/01/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.0 1 05/03/2024 08:12 WG2279417 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.2 2.30 1 05/04/2024 13:29 WG2279472 Lead 298 0.575 1 05/04/2024 13:29 WG2279472 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 25 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 25 of 39 SAMPLE RESULTS - 19 L1731854 SP-264_050124 Collected date/time: 05/01/24 13:03 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.7 1 05/03/2024 08:12 WG2279417 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 15.6 2.31 1 05/04/2024 13:37 WG2279472 Lead 320 0.577 1 05/04/2024 13:37 WG2279472 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 26 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 26 of 39 SAMPLE RESULTS - 20 L1731854 SP-265_050124 Collected date/time: 05/01/24 11:48 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.8 1 05/03/2024 08:12 WG2279417 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.4 2.28 1 05/04/2024 13:40 WG2279472 Lead 262 0.570 1 05/04/2024 13:40 WG2279472 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 27 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 27 of 39 SAMPLE RESULTS - 21 L1731854 SP-DUP-12 Collected date/time: 05/01/24 13:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.8 1 05/03/2024 08:12 WG2279417 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.0 2.25 1 05/04/2024 12:50 WG2279472 Lead 78.8 J5 0.563 1 05/04/2024 12:50 WG2279472 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 28 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 28 of 39 SAMPLE RESULTS - 22 L1731854 SP-DUP-13 Collected date/time: 05/01/24 13:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.2 1 05/03/2024 08:12 WG2279417 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.5 2.32 1 05/04/2024 13:43 WG2279472 Lead 133 0.580 1 05/04/2024 13:43 WG2279472 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 29 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 29 of 39 QUALITY CONTROL SUMMARYWG2279415 Total Solids by Method 2540 G-2011 L1731854-01,02,03,04,05 Method Blank (MB) (MB) R4065755-1 05/03/24 08:33 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1731851-01 Original Sample (OS) • Duplicate (DUP) (OS) L1731851-01 05/03/24 08:33 • (DUP) R4065755-3 05/03/24 08:33 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 89.6 90.2 1 0.697 10 Laboratory Control Sample (LCS) (LCS) R4065755-2 05/03/24 08:33 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 30 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 30 of 39 QUALITY CONTROL SUMMARYWG2279416 Total Solids by Method 2540 G-2011 L1731854-06,07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R4065754-1 05/03/24 08:24 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1731854-12 Original Sample (OS) • Duplicate (DUP) (OS) L1731854-12 05/03/24 08:24 • (DUP) R4065754-3 05/03/24 08:24 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 86.1 84.3 1 2.16 10 Laboratory Control Sample (LCS) (LCS) R4065754-2 05/03/24 08:24 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 31 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 31 of 39 QUALITY CONTROL SUMMARYWG2279417 Total Solids by Method 2540 G-2011 L1731854-16,17,18,19,20,21,22 Method Blank (MB) (MB) R4065753-1 05/03/24 08:12 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1731893-01 Original Sample (OS) • Duplicate (DUP) (OS) L1731893-01 05/03/24 08:12 • (DUP) R4065753-3 05/03/24 08:12 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 91.1 90.6 1 0.576 10 Laboratory Control Sample (LCS) (LCS) R4065753-2 05/03/24 08:12 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 49.9 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 32 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 32 of 39 QUALITY CONTROL SUMMARYWG2279472 Metals (ICP) by Method 6010B L1731854-17,18,19,20,21,22 Method Blank (MB) (MB) R4065817-1 05/04/24 12:44 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4065817-2 05/04/24 12:47 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 91.5 91.5 80.0-120 Lead 100 90.7 90.7 80.0-120 L1731854-21 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1731854-21 05/04/24 12:50 • (MS) R4065817-5 05/04/24 13:17 • (MSD) R4065817-6 05/04/24 13:20 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 113 12.0 106 102 83.8 79.8 1 75.0-125 4.35 20 Lead 113 78.8 323 326 217 219 1 75.0-125 J5 J5 0.890 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 33 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 33 of 39 QUALITY CONTROL SUMMARYWG2279475 Metals (ICP) by Method 6010B L1731854-01,02,03,04,05,06,07,08,09,10,11,12,13,14,15,16 Method Blank (MB) (MB) R4065816-1 05/04/24 11:12 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4065816-2 05/04/24 11:14 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 91.4 91.4 80.0-120 Lead 100 91.9 91.9 80.0-120 L1731854-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1731854-04 05/04/24 11:17 • (MS) R4065816-5 05/04/24 11:26 • (MSD) R4065816-6 05/04/24 11:28 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 117 10.3 116 110 90.7 85.5 1 75.0-125 5.28 20 Lead 117 137 290 203 131 56.9 1 75.0-125 J5 J3 J6 35.2 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 34 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 34 of 39 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J3 The associated batch QC was outside the established quality control range for precision. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 35 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 35 of 39 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 13:11 36 of 39 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731854 05/06/24 16:34 36 of 39 ANALYTICAL REPORT May 08, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1731858 Samples Received:05/02/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: May 08, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 1 of 29 May 08, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 1 of 29 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-230_043024 L1731858-01 7 SP-231_043024 L1731858-02 8 SP-232_043024 L1731858-03 9 SP-233_043024 L1731858-04 10 SP-234_043024 L1731858-05 11 SP-235_043024 L1731858-06 12 SP-236_043024 L1731858-07 13 SP-237_050124 L1731858-08 14 SP-238_050124 L1731858-09 15 SP-239_050124 L1731858-10 16 SP-240_050124 L1731858-11 17 SP-DUP-10 L1731858-12 18 SP-DUP-11 L1731858-13 19 SP-228_042524 L1731858-14 20 SP-229_042524 L1731858-15 21 Qc: Quality Control Summary 22 Total Solids by Method 2540 G-2011 22 Metals (ICP) by Method 6010B 25 Gl: Glossary of Terms 26 Al: Accreditations & Locations 27 Sc: Sample Chain of Custody 28 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 2 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 2 of 29 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-230_043024 L1731858-01 Solid Annie Matzke 04/30/24 12:15 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279420 1 05/03/24 15:23 05/03/24 15:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:05 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-231_043024 L1731858-02 Solid Annie Matzke 04/30/24 12:23 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279420 1 05/03/24 15:23 05/03/24 15:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:07 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-232_043024 L1731858-03 Solid Annie Matzke 04/30/24 12:27 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279421 1 05/03/24 12:34 05/03/24 12:47 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 20:56 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-233_043024 L1731858-04 Solid Annie Matzke 04/30/24 12:31 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279421 1 05/03/24 12:34 05/03/24 12:47 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:08 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-234_043024 L1731858-05 Solid Annie Matzke 04/30/24 12:37 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279421 1 05/03/24 12:34 05/03/24 12:47 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:14 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-235_043024 L1731858-06 Solid Annie Matzke 04/30/24 12:42 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279421 1 05/03/24 12:34 05/03/24 12:47 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:15 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-236_043024 L1731858-07 Solid Annie Matzke 04/30/24 12:52 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279421 1 05/03/24 12:34 05/03/24 12:47 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:17 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 3 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 3 of 29 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-237_050124 L1731858-08 Solid Annie Matzke 05/01/24 13:30 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279421 1 05/03/24 12:34 05/03/24 12:47 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:19 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-238_050124 L1731858-09 Solid Annie Matzke 05/01/24 13:31 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279421 1 05/03/24 12:34 05/03/24 12:47 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:21 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-239_050124 L1731858-10 Solid Annie Matzke 05/01/24 13:34 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279421 1 05/03/24 12:34 05/03/24 12:47 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:22 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-240_050124 L1731858-11 Solid Annie Matzke 05/01/24 13:37 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279421 1 05/03/24 12:34 05/03/24 12:47 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:24 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-10 L1731858-12 Solid Annie Matzke 04/30/24 12:20 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279421 1 05/03/24 12:34 05/03/24 12:47 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:26 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-11 L1731858-13 Solid Annie Matzke 05/01/24 13:45 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279422 1 05/03/24 10:30 05/03/24 10:46 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:28 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-228_042524 L1731858-14 Solid Annie Matzke 04/25/24 11:00 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279422 1 05/03/24 10:30 05/03/24 10:46 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:29 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 4 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 4 of 29 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-229_042524 L1731858-15 Solid Annie Matzke 04/25/24 11:08 05/02/24 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2279422 1 05/03/24 10:30 05/03/24 10:46 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2279465 1 05/07/24 07:25 05/07/24 21:35 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 5 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 5 of 29 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 6 of 29 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 6 of 29 SAMPLE RESULTS - 01 L1731858 SP-230_043024 Collected date/time: 04/30/24 12:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.7 1 05/03/2024 15:44 WG2279420 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.76 2.31 1 05/07/2024 21:05 WG2279465 Lead 62.2 0.577 1 05/07/2024 21:05 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 7 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 7 of 29 SAMPLE RESULTS - 02 L1731858 SP-231_043024 Collected date/time: 04/30/24 12:23 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.1 1 05/03/2024 15:44 WG2279420 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 14.4 2.32 1 05/07/2024 21:07 WG2279465 Lead 183 0.580 1 05/07/2024 21:07 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 8 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 8 of 29 SAMPLE RESULTS - 03 L1731858 SP-232_043024 Collected date/time: 04/30/24 12:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.3 1 05/03/2024 12:47 WG2279421 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.5 2.29 1 05/07/2024 20:56 WG2279465 Lead 177 J6 O1 0.573 1 05/07/2024 20:56 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 9 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 9 of 29 SAMPLE RESULTS - 04 L1731858 SP-233_043024 Collected date/time: 04/30/24 12:31 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.3 1 05/03/2024 12:47 WG2279421 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.8 2.26 1 05/07/2024 21:08 WG2279465 Lead 199 0.566 1 05/07/2024 21:08 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 10 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 10 of 29 SAMPLE RESULTS - 05 L1731858 SP-234_043024 Collected date/time: 04/30/24 12:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.5 1 05/03/2024 12:47 WG2279421 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.64 2.34 1 05/07/2024 21:14 WG2279465 Lead 81.4 0.585 1 05/07/2024 21:14 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 11 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 11 of 29 SAMPLE RESULTS - 06 L1731858 SP-235_043024 Collected date/time: 04/30/24 12:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.1 1 05/03/2024 12:47 WG2279421 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 20.9 2.30 1 05/07/2024 21:15 WG2279465 Lead 539 0.574 1 05/07/2024 21:15 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 12 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 12 of 29 SAMPLE RESULTS - 07 L1731858 SP-236_043024 Collected date/time: 04/30/24 12:52 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.5 1 05/03/2024 12:47 WG2279421 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 20.8 2.31 1 05/07/2024 21:17 WG2279465 Lead 453 0.578 1 05/07/2024 21:17 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 13 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 13 of 29 SAMPLE RESULTS - 08 L1731858 SP-237_050124 Collected date/time: 05/01/24 13:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.2 1 05/03/2024 12:47 WG2279421 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 18.3 2.24 1 05/07/2024 21:19 WG2279465 Lead 370 0.560 1 05/07/2024 21:19 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 14 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 14 of 29 SAMPLE RESULTS - 09 L1731858 SP-238_050124 Collected date/time: 05/01/24 13:31 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.8 1 05/03/2024 12:47 WG2279421 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 19.0 2.30 1 05/07/2024 21:21 WG2279465 Lead 436 0.576 1 05/07/2024 21:21 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 15 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 15 of 29 SAMPLE RESULTS - 10 L1731858 SP-239_050124 Collected date/time: 05/01/24 13:34 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.0 1 05/03/2024 12:47 WG2279421 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 21.5 2.30 1 05/07/2024 21:22 WG2279465 Lead 501 0.574 1 05/07/2024 21:22 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 16 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 16 of 29 SAMPLE RESULTS - 11 L1731858 SP-240_050124 Collected date/time: 05/01/24 13:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.2 1 05/03/2024 12:47 WG2279421 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 21.2 2.27 1 05/07/2024 21:24 WG2279465 Lead 522 0.567 1 05/07/2024 21:24 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 17 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 17 of 29 SAMPLE RESULTS - 12 L1731858 SP-DUP-10 Collected date/time: 04/30/24 12:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.3 1 05/03/2024 12:47 WG2279421 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.9 2.27 1 05/07/2024 21:26 WG2279465 Lead 116 0.566 1 05/07/2024 21:26 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 18 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 18 of 29 SAMPLE RESULTS - 13 L1731858 SP-DUP-11 Collected date/time: 05/01/24 13:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.5 1 05/03/2024 10:46 WG2279422 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 22.1 2.29 1 05/07/2024 21:28 WG2279465 Lead 542 0.572 1 05/07/2024 21:28 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 19 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 19 of 29 SAMPLE RESULTS - 14 L1731858 SP-228_042524 Collected date/time: 04/25/24 11:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.1 1 05/03/2024 10:46 WG2279422 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 20.2 2.25 1 05/07/2024 21:29 WG2279465 Lead 509 0.561 1 05/07/2024 21:29 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 20 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 20 of 29 SAMPLE RESULTS - 15 L1731858 SP-229_042524 Collected date/time: 04/25/24 11:08 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.4 1 05/03/2024 10:46 WG2279422 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.9 2.10 1 05/07/2024 21:35 WG2279465 Lead 178 0.524 1 05/07/2024 21:35 WG2279465 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 21 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 21 of 29 QUALITY CONTROL SUMMARYWG2279420 Total Solids by Method 2540 G-2011 L1731858-01,02 Method Blank (MB) (MB) R4065769-1 05/03/24 15:44 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1731815-11 Original Sample (OS) • Duplicate (DUP) (OS) L1731815-11 05/03/24 15:44 • (DUP) R4065769-3 05/03/24 15:44 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 71.9 71.0 1 1.21 10 Laboratory Control Sample (LCS) (LCS) R4065769-2 05/03/24 15:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 22 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 22 of 29 QUALITY CONTROL SUMMARYWG2279421 Total Solids by Method 2540 G-2011 L1731858-03,04,05,06,07,08,09,10,11,12 Method Blank (MB) (MB) R4065767-1 05/03/24 12:47 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1731858-12 Original Sample (OS) • Duplicate (DUP) (OS) L1731858-12 05/03/24 12:47 • (DUP) R4065767-3 05/03/24 12:47 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 88.3 86.9 1 1.57 10 Laboratory Control Sample (LCS) (LCS) R4065767-2 05/03/24 12:47 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 23 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 23 of 29 QUALITY CONTROL SUMMARYWG2279422 Total Solids by Method 2540 G-2011 L1731858-13,14,15 Method Blank (MB) (MB) R4065761-1 05/03/24 10:46 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1731867-05 Original Sample (OS) • Duplicate (DUP) (OS) L1731867-05 05/03/24 10:46 • (DUP) R4065761-3 05/03/24 10:46 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 76.3 76.5 1 0.203 10 Laboratory Control Sample (LCS) (LCS) R4065761-2 05/03/24 10:46 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 24 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 24 of 29 QUALITY CONTROL SUMMARYWG2279465 Metals (ICP) by Method 6010B L1731858-01,02,03,04,05,06,07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R4066934-1 05/07/24 20:53 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4066934-2 05/07/24 20:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 86.6 86.6 80.0-120 Lead 100 86.9 86.9 80.0-120 L1731858-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1731858-03 05/07/24 20:56 • (MS) R4066934-5 05/07/24 21:01 • (MSD) R4066934-6 05/07/24 21:03 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 115 11.5 116 105 91.6 81.4 1 75.0-125 10.6 20 Lead 115 177 273 258 83.9 70.6 1 75.0-125 J6 5.72 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 25 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 25 of 29 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. O1 The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 26 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 26 of 29 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:07 27 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1731858 05/08/24 09:23 27 of 29 ANALYTICAL REPORT May 20, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1736049 Samples Received:05/14/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: May 20, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 1 of 40 May 21, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 1 of 40 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 7 Sr: Sample Results 8 SP-241-050224 L1736049-01 8 SP-242-050224 L1736049-02 9 SP-243-050224 L1736049-03 10 SP-244-050224 L1736049-04 11 SP-245-050224 L1736049-05 12 SP-266-050224 L1736049-06 13 SP-267-050224 L1736049-07 14 SP-268-050224 L1736049-08 15 SP-269-050224 L1736049-09 16 SP-270-050224 L1736049-10 17 SP-271-050224 L1736049-11 18 SP-272-050224 L1736049-12 19 SP-273-050224 L1736049-13 20 SP-274-050224 L1736049-14 21 SP-DUP-14 L1736049-15 22 CS-81-042624 L1736049-16 23 CS-82-042624 L1736049-17 24 CS-83-042624 L1736049-18 25 CS-84-050224 L1736049-19 26 CS-85-050224 L1736049-20 27 CS-86-050224 L1736049-21 28 CS-87-050224 L1736049-22 29 Qc: Quality Control Summary 30 Total Solids by Method 2540 G-2011 30 Metals (ICP) by Method 6010B 33 Gl: Glossary of Terms 36 Al: Accreditations & Locations 37 Sc: Sample Chain of Custody 38 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 2 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 2 of 40 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-241-050224 L1736049-01 Solid Annie Matzke 05/02/24 12:28 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287341 1 05/16/24 07:47 05/16/24 07:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:13 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-242-050224 L1736049-02 Solid Annie Matzke 05/02/24 12:31 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287341 1 05/16/24 07:47 05/16/24 07:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:17 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-243-050224 L1736049-03 Solid Annie Matzke 05/02/24 12:35 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287341 1 05/16/24 07:47 05/16/24 07:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:20 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-244-050224 L1736049-04 Solid Annie Matzke 05/02/24 12:39 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287341 1 05/16/24 07:47 05/16/24 07:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:31 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-245-050224 L1736049-05 Solid Annie Matzke 05/02/24 12:42 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287341 1 05/16/24 07:47 05/16/24 07:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286914 1 05/19/24 09:30 05/19/24 22:45 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-266-050224 L1736049-06 Solid Annie Matzke 05/02/24 15:16 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287341 1 05/16/24 07:47 05/16/24 07:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286914 1 05/19/24 09:30 05/19/24 22:47 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-267-050224 L1736049-07 Solid Annie Matzke 05/02/24 15:20 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287341 1 05/16/24 07:47 05/16/24 07:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 21:57 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 3 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 3 of 40 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-268-050224 L1736049-08 Solid Annie Matzke 05/02/24 15:26 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287342 1 05/16/24 08:06 05/16/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:34 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-269-050224 L1736049-09 Solid Annie Matzke 05/02/24 15:30 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287342 1 05/16/24 08:06 05/16/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:38 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-270-050224 L1736049-10 Solid Annie Matzke 05/02/24 15:37 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287342 1 05/16/24 08:06 05/16/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:41 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-271-050224 L1736049-11 Solid Annie Matzke 05/02/24 15:40 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287342 1 05/16/24 08:06 05/16/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:45 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-272-050224 L1736049-12 Solid Annie Matzke 05/02/24 15:43 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287342 1 05/16/24 08:06 05/16/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286929 1 05/19/24 23:04 05/20/24 11:22 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-273-050224 L1736049-13 Solid Annie Matzke 05/02/24 15:46 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287342 1 05/16/24 08:06 05/16/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:48 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-274-050224 L1736049-14 Solid Annie Matzke 05/02/24 15:50 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287342 1 05/16/24 08:06 05/16/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:52 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 4 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 4 of 40 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-DUP-14 L1736049-15 Solid Annie Matzke 05/02/24 16:00 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287342 1 05/16/24 08:06 05/16/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:56 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-81-042624 L1736049-16 Solid Annie Matzke 04/26/24 09:30 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287342 1 05/16/24 08:06 05/16/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 22:59 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-82-042624 L1736049-17 Solid Annie Matzke 04/26/24 10:25 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287342 1 05/16/24 08:06 05/16/24 08:12 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286929 1 05/19/24 23:04 05/20/24 11:26 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-83-042624 L1736049-18 Solid Annie Matzke 04/26/24 11:05 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287343 1 05/16/24 08:15 05/16/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286929 1 05/19/24 23:04 05/20/24 11:29 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-84-050224 L1736049-19 Solid Annie Matzke 05/02/24 11:40 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287343 1 05/16/24 08:15 05/16/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286929 1 05/19/24 23:04 05/20/24 11:32 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-85-050224 L1736049-20 Solid Annie Matzke 05/02/24 12:30 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287343 1 05/16/24 08:15 05/16/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286929 1 05/19/24 23:04 05/20/24 11:36 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-86-050224 L1736049-21 Solid Annie Matzke 05/02/24 15:30 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287343 1 05/16/24 08:15 05/16/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286929 1 05/19/24 23:04 05/20/24 11:40 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 5 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 5 of 40 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-87-050224 L1736049-22 Solid Annie Matzke 05/02/24 16:10 05/14/24 13:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2287343 1 05/16/24 08:15 05/16/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2286932 1 05/19/24 08:25 05/19/24 23:03 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 6 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 6 of 40 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 7 of 40 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 7 of 40 SAMPLE RESULTS - 01 L1736049 SP-241-050224 Collected date/time: 05/02/24 12:28 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.0 1 05/16/2024 07:54 WG2287341 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 26.6 2.25 1 05/19/2024 22:13 WG2286932 Lead 642 0.562 1 05/19/2024 22:13 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 8 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 8 of 40 SAMPLE RESULTS - 02 L1736049 SP-242-050224 Collected date/time: 05/02/24 12:31 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.7 1 05/16/2024 07:54 WG2287341 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 26.5 2.28 1 05/19/2024 22:17 WG2286932 Lead 645 0.570 1 05/19/2024 22:17 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 9 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 9 of 40 SAMPLE RESULTS - 03 L1736049 SP-243-050224 Collected date/time: 05/02/24 12:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.5 1 05/16/2024 07:54 WG2287341 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 25.4 2.26 1 05/19/2024 22:20 WG2286932 Lead 580 0.565 1 05/19/2024 22:20 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 10 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 10 of 40 SAMPLE RESULTS - 04 L1736049 SP-244-050224 Collected date/time: 05/02/24 12:39 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.6 1 05/16/2024 07:54 WG2287341 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 26.4 2.26 1 05/19/2024 22:31 WG2286932 Lead 616 0.564 1 05/19/2024 22:31 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 11 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 11 of 40 SAMPLE RESULTS - 05 L1736049 SP-245-050224 Collected date/time: 05/02/24 12:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.6 1 05/16/2024 07:54 WG2287341 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 39.6 2.21 1 05/19/2024 22:45 WG2286914 Lead 773 0.552 1 05/19/2024 22:45 WG2286914 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 12 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 12 of 40 SAMPLE RESULTS - 06 L1736049 SP-266-050224 Collected date/time: 05/02/24 15:16 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.3 1 05/16/2024 07:54 WG2287341 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 22.5 2.24 1 05/19/2024 22:47 WG2286914 Lead 526 0.560 1 05/19/2024 22:47 WG2286914 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 13 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 13 of 40 SAMPLE RESULTS - 07 L1736049 SP-267-050224 Collected date/time: 05/02/24 15:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.0 1 05/16/2024 07:54 WG2287341 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 20.5 2.22 1 05/19/2024 21:57 WG2286932 Lead 388 J5 O1 0.555 1 05/19/2024 21:57 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 14 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 14 of 40 SAMPLE RESULTS - 08 L1736049 SP-268-050224 Collected date/time: 05/02/24 15:26 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.4 1 05/16/2024 08:12 WG2287342 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 33.8 2.24 1 05/19/2024 22:34 WG2286932 Lead 464 0.559 1 05/19/2024 22:34 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 15 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 15 of 40 SAMPLE RESULTS - 09 L1736049 SP-269-050224 Collected date/time: 05/02/24 15:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.8 1 05/16/2024 08:12 WG2287342 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 15.5 2.20 1 05/19/2024 22:38 WG2286932 Lead 221 0.551 1 05/19/2024 22:38 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 16 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 16 of 40 SAMPLE RESULTS - 10 L1736049 SP-270-050224 Collected date/time: 05/02/24 15:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.2 1 05/16/2024 08:12 WG2287342 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 19.5 2.27 1 05/19/2024 22:41 WG2286932 Lead 242 0.567 1 05/19/2024 22:41 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 17 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 17 of 40 SAMPLE RESULTS - 11 L1736049 SP-271-050224 Collected date/time: 05/02/24 15:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.8 1 05/16/2024 08:12 WG2287342 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 17.4 2.28 1 05/19/2024 22:45 WG2286932 Lead 247 0.570 1 05/19/2024 22:45 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 18 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 18 of 40 SAMPLE RESULTS - 12 L1736049 SP-272-050224 Collected date/time: 05/02/24 15:43 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.3 1 05/16/2024 08:12 WG2287342 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 60.0 2.17 1 05/20/2024 11:22 WG2286929 Lead 668 0.542 1 05/20/2024 11:22 WG2286929 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 19 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 19 of 40 SAMPLE RESULTS - 13 L1736049 SP-273-050224 Collected date/time: 05/02/24 15:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.8 1 05/16/2024 08:12 WG2287342 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 94.8 2.33 1 05/19/2024 22:48 WG2286932 Lead 1140 0.583 1 05/19/2024 22:48 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 20 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 20 of 40 SAMPLE RESULTS - 14 L1736049 SP-274-050224 Collected date/time: 05/02/24 15:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 79.1 1 05/16/2024 08:12 WG2287342 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 206 2.53 1 05/19/2024 22:52 WG2286932 Lead 2070 0.632 1 05/19/2024 22:52 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 21 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 21 of 40 SAMPLE RESULTS - 15 L1736049 SP-DUP-14 Collected date/time: 05/02/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.1 1 05/16/2024 08:12 WG2287342 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 26.0 2.27 1 05/19/2024 22:56 WG2286932 Lead 482 0.568 1 05/19/2024 22:56 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 22 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 22 of 40 SAMPLE RESULTS - 16 L1736049 CS-81-042624 Collected date/time: 04/26/24 09:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.6 1 05/16/2024 08:12 WG2287342 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.7 2.21 1 05/19/2024 22:59 WG2286932 Lead 221 0.552 1 05/19/2024 22:59 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 23 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 23 of 40 SAMPLE RESULTS - 17 L1736049 CS-82-042624 Collected date/time: 04/26/24 10:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.9 1 05/16/2024 08:12 WG2287342 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.1 2.20 1 05/20/2024 11:26 WG2286929 Lead 150 0.550 1 05/20/2024 11:26 WG2286929 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 24 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 24 of 40 SAMPLE RESULTS - 18 L1736049 CS-83-042624 Collected date/time: 04/26/24 11:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.4 1 05/16/2024 08:21 WG2287343 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.3 2.16 1 05/20/2024 11:29 WG2286929 Lead 176 0.541 1 05/20/2024 11:29 WG2286929 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 25 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 25 of 40 SAMPLE RESULTS - 19 L1736049 CS-84-050224 Collected date/time: 05/02/24 11:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.1 1 05/16/2024 08:21 WG2287343 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.1 2.10 1 05/20/2024 11:32 WG2286929 Lead 182 0.526 1 05/20/2024 11:32 WG2286929 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 26 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 26 of 40 SAMPLE RESULTS - 20 L1736049 CS-85-050224 Collected date/time: 05/02/24 12:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.8 1 05/16/2024 08:21 WG2287343 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 8.98 2.16 1 05/20/2024 11:36 WG2286929 Lead 67.8 0.539 1 05/20/2024 11:36 WG2286929 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 27 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 27 of 40 SAMPLE RESULTS - 21 L1736049 CS-86-050224 Collected date/time: 05/02/24 15:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.6 1 05/16/2024 08:21 WG2287343 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.3 2.26 1 05/20/2024 11:40 WG2286929 Lead 138 0.564 1 05/20/2024 11:40 WG2286929 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 28 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 28 of 40 SAMPLE RESULTS - 22 L1736049 CS-87-050224 Collected date/time: 05/02/24 16:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.2 1 05/16/2024 08:21 WG2287343 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.1 2.19 1 05/19/2024 23:03 WG2286932 Lead 242 0.548 1 05/19/2024 23:03 WG2286932 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 29 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 29 of 40 QUALITY CONTROL SUMMARYWG2287341 Total Solids by Method 2540 G-2011 L1736049-01,02,03,04,05,06,07 Method Blank (MB) (MB) R4070759-1 05/16/24 07:54 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1736049-02 Original Sample (OS) • Duplicate (DUP) (OS) L1736049-02 05/16/24 07:54 • (DUP) R4070759-3 05/16/24 07:54 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 87.7 87.5 1 0.176 10 Laboratory Control Sample (LCS) (LCS) R4070759-2 05/16/24 07:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 30 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 30 of 40 QUALITY CONTROL SUMMARYWG2287342 Total Solids by Method 2540 G-2011 L1736049-08,09,10,11,12,13,14,15,16,17 Method Blank (MB) (MB) R4070762-1 05/16/24 08:12 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1736049-12 Original Sample (OS) • Duplicate (DUP) (OS) L1736049-12 05/16/24 08:12 • (DUP) R4070762-3 05/16/24 08:12 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 92.3 92.0 1 0.369 10 Laboratory Control Sample (LCS) (LCS) R4070762-2 05/16/24 08:12 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 31 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 31 of 40 QUALITY CONTROL SUMMARYWG2287343 Total Solids by Method 2540 G-2011 L1736049-18,19,20,21,22 Method Blank (MB) (MB) R4070763-1 05/16/24 08:21 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1736049-22 Original Sample (OS) • Duplicate (DUP) (OS) L1736049-22 05/16/24 08:21 • (DUP) R4070763-3 05/16/24 08:21 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 91.2 89.8 1 1.54 10 Laboratory Control Sample (LCS) (LCS) R4070763-2 05/16/24 08:21 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 32 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 32 of 40 QUALITY CONTROL SUMMARYWG2286914 Metals (ICP) by Method 6010B L1736049-05,06 Method Blank (MB) (MB) R4071475-1 05/19/24 22:03 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4071475-2 05/19/24 22:05 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 89.6 89.6 80.0-120 Lead 100 89.3 89.3 80.0-120 L1736001-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1736001-01 05/19/24 22:07 • (MS) R4071475-5 05/19/24 22:12 • (MSD) R4071475-6 05/19/24 22:13 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 106 6.63 106 106 94.0 94.0 1 75.0-125 0.0470 20 Lead 106 15.9 115 117 93.6 95.3 1 75.0-125 1.53 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 33 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 33 of 40 QUALITY CONTROL SUMMARYWG2286929 Metals (ICP) by Method 6010B L1736049-12,17,18,19,20,21 Method Blank (MB) (MB) R4071738-1 05/20/24 09:44 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4071738-2 05/20/24 09:47 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.8 93.8 80.0-120 Lead 100 97.1 97.1 80.0-120 L1735596-31 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1735596-31 05/20/24 09:51 • (MS) R4071738-5 05/20/24 10:01 • (MSD) R4071738-6 05/20/24 10:04 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 3.60 103 100 99.8 96.5 1 75.0-125 3.22 20 Lead 100 13.4 112 109 98.1 95.3 1 75.0-125 2.56 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 34 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 34 of 40 QUALITY CONTROL SUMMARYWG2286932 Metals (ICP) by Method 6010B L1736049-01,02,03,04,07,08,09,10,11,13,14,15,16,22 Method Blank (MB) (MB) R4071482-1 05/19/24 21:50 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4071482-2 05/19/24 21:53 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 92.2 92.2 80.0-120 Lead 100 94.4 94.4 80.0-120 L1736049-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1736049-07 05/19/24 21:57 • (MS) R4071482-5 05/19/24 22:07 • (MSD) R4071482-6 05/19/24 22:10 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 111 20.5 132 124 100 93.6 1 75.0-125 5.59 20 Lead 111 388 538 522 135 121 1 75.0-125 J5 2.99 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 35 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 35 of 40 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. O1 The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 36 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 36 of 40 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/20/24 15:13 37 of 40 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1736049 05/21/24 09:50 37 of 40 ANALYTICAL REPORT May 27, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1738056 Samples Received:05/18/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: May 27, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 1 of 22 May 28, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 1 of 22 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 CS-88-050824 L1738056-01 6 CS-89-051424 L1738056-02 7 CS-89-SW-1-051424 L1738056-03 8 CS-90-051624 L1738056-04 9 CS-90-SW-1-051624 L1738056-05 10 CS-91-051624 L1738056-06 11 CS-91-SW-1-0-1.2-051624 L1738056-07 12 CS-91-SW-1-1.2-2.4-051624 L1738056-08 13 CS-91-SW-2-051624 L1738056-09 14 DUP-9 L1738056-10 15 Qc: Quality Control Summary 16 Total Solids by Method 2540 G-2011 16 Metals (ICP) by Method 6010B 18 Gl: Glossary of Terms 20 Al: Accreditations & Locations 21 Sc: Sample Chain of Custody 22 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 2 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 2 of 22 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-88-050824 L1738056-01 Solid Annie Matzke 05/08/24 08:00 05/18/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2289765 1 05/21/24 09:10 05/21/24 09:20 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2289350 1 05/23/24 23:10 05/24/24 12:43 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-89-051424 L1738056-02 Solid Annie Matzke 05/14/24 15:36 05/18/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2289765 1 05/21/24 09:10 05/21/24 09:20 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2289350 1 05/23/24 23:10 05/24/24 12:51 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-89-SW-1-051424 L1738056-03 Solid Annie Matzke 05/14/24 16:20 05/18/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2289766 1 05/21/24 09:00 05/21/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2289350 1 05/23/24 23:10 05/24/24 12:54 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-90-051624 L1738056-04 Solid Annie Matzke 05/16/24 09:35 05/18/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2289766 1 05/21/24 09:00 05/21/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2289351 1 05/24/24 18:54 05/26/24 20:02 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-90-SW-1-051624 L1738056-05 Solid Annie Matzke 05/16/24 10:00 05/18/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2289766 1 05/21/24 09:00 05/21/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2289351 1 05/24/24 18:54 05/26/24 20:04 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-91-051624 L1738056-06 Solid Annie Matzke 05/16/24 10:40 05/18/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2289766 1 05/21/24 09:00 05/21/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2289351 1 05/24/24 18:54 05/26/24 20:07 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-91-SW-1-0-1.2-051624 L1738056-07 Solid Annie Matzke 05/16/24 11:00 05/18/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2289766 1 05/21/24 09:00 05/21/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2289350 1 05/23/24 23:10 05/24/24 12:57 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 3 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 3 of 22 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-91-SW-1-1.2-2.4-051624 L1738056-08 Solid Annie Matzke 05/16/24 16:00 05/18/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2289766 1 05/21/24 09:00 05/21/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2289350 1 05/23/24 23:10 05/24/24 12:59 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-91-SW-2-051624 L1738056-09 Solid Annie Matzke 05/16/24 11:20 05/18/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2289766 1 05/21/24 09:00 05/21/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2289350 1 05/23/24 23:10 05/24/24 13:02 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-9 L1738056-10 Solid Annie Matzke 05/16/24 11:20 05/18/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2289766 1 05/21/24 09:00 05/21/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2289350 1 05/23/24 23:10 05/24/24 13:05 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 4 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 4 of 22 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 5 of 22 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 5 of 22 SAMPLE RESULTS - 01 L1738056 CS-88-050824 Collected date/time: 05/08/24 08:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.0 1 05/21/2024 09:20 WG2289765 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.43 2.38 1 05/24/2024 12:43 WG2289350 Lead 70.5 0.595 1 05/24/2024 12:43 WG2289350 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 6 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 6 of 22 SAMPLE RESULTS - 02 L1738056 CS-89-051424 Collected date/time: 05/14/24 15:36 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.2 1 05/21/2024 09:20 WG2289765 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 10.6 2.15 1 05/24/2024 12:51 WG2289350 Lead 77.2 0.536 1 05/24/2024 12:51 WG2289350 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 7 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 7 of 22 SAMPLE RESULTS - 03 L1738056 CS-89-SW-1-051424 Collected date/time: 05/14/24 16:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.7 1 05/21/2024 09:07 WG2289766 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 16.5 2.11 1 05/24/2024 12:54 WG2289350 Lead 310 0.528 1 05/24/2024 12:54 WG2289350 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 8 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 8 of 22 SAMPLE RESULTS - 04 L1738056 CS-90-051624 Collected date/time: 05/16/24 09:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.9 1 05/21/2024 09:07 WG2289766 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 9.45 2.09 1 05/26/2024 20:02 WG2289351 Lead 85.3 0.521 1 05/26/2024 20:02 WG2289351 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 9 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 9 of 22 SAMPLE RESULTS - 05 L1738056 CS-90-SW-1-051624 Collected date/time: 05/16/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.9 1 05/21/2024 09:07 WG2289766 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 17.5 2.11 1 05/26/2024 20:04 WG2289351 Lead 503 0.527 1 05/26/2024 20:04 WG2289351 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 10 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 10 of 22 SAMPLE RESULTS - 06 L1738056 CS-91-051624 Collected date/time: 05/16/24 10:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.1 1 05/21/2024 09:07 WG2289766 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 11.9 2.08 1 05/26/2024 20:07 WG2289351 Lead 136 0.520 1 05/26/2024 20:07 WG2289351 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 11 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 11 of 22 SAMPLE RESULTS - 07 L1738056 CS-91-SW-1-0-1.2-051624 Collected date/time: 05/16/24 11:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.4 1 05/21/2024 09:07 WG2289766 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 29.0 2.14 1 05/24/2024 12:57 WG2289350 Lead 877 0.535 1 05/24/2024 12:57 WG2289350 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 12 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 12 of 22 SAMPLE RESULTS - 08 L1738056 CS-91-SW-1-1.2-2.4-051624 Collected date/time: 05/16/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.9 1 05/21/2024 09:07 WG2289766 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 13.3 2.18 1 05/24/2024 12:59 WG2289350 Lead 79.8 0.544 1 05/24/2024 12:59 WG2289350 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 13 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 13 of 22 SAMPLE RESULTS - 09 L1738056 CS-91-SW-2-051624 Collected date/time: 05/16/24 11:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.0 1 05/21/2024 09:07 WG2289766 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 27.6 2.11 1 05/24/2024 13:02 WG2289350 Lead 819 0.527 1 05/24/2024 13:02 WG2289350 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 14 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 14 of 22 SAMPLE RESULTS - 10 L1738056 DUP-9 Collected date/time: 05/16/24 11:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.9 1 05/21/2024 09:07 WG2289766 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 21.0 2.09 1 05/24/2024 13:05 WG2289350 Lead 107 0.521 1 05/24/2024 13:05 WG2289350 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 15 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 15 of 22 QUALITY CONTROL SUMMARYWG2289765 Total Solids by Method 2540 G-2011 L1738056-01,02 Method Blank (MB) (MB) R4072501-1 05/21/24 09:20 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1737986-28 Original Sample (OS) • Duplicate (DUP) (OS) L1737986-28 05/21/24 09:20 • (DUP) R4072501-3 05/21/24 09:20 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 88.1 88.6 1 0.540 10 Laboratory Control Sample (LCS) (LCS) R4072501-2 05/21/24 09:20 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 16 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 16 of 22 QUALITY CONTROL SUMMARYWG2289766 Total Solids by Method 2540 G-2011 L1738056-03,04,05,06,07,08,09,10 Method Blank (MB) (MB) R4072276-1 05/21/24 09:07 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1738056-10 Original Sample (OS) • Duplicate (DUP) (OS) L1738056-10 05/21/24 09:07 • (DUP) R4072276-3 05/21/24 09:07 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 95.9 96.0 1 0.0727 10 Laboratory Control Sample (LCS) (LCS) R4072276-2 05/21/24 09:07 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 17 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 17 of 22 QUALITY CONTROL SUMMARYWG2289350 Metals (ICP) by Method 6010B L1738056-01,02,03,07,08,09,10 Method Blank (MB) (MB) R4073724-1 05/24/24 11:43 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4073724-2 05/24/24 11:46 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 97.5 97.5 80.0-120 Lead 100 96.1 96.1 80.0-120 L1737986-28 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1737986-28 05/24/24 11:48 • (MS) R4073724-5 05/24/24 11:57 • (MSD) R4073724-6 05/24/24 11:59 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 114 3.43 103 111 87.8 94.6 1 75.0-125 7.21 20 Lead 114 17.6 122 129 91.6 97.9 1 75.0-125 5.69 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 18 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 18 of 22 QUALITY CONTROL SUMMARYWG2289351 Metals (ICP) by Method 6010B L1738056-04,05,06 Method Blank (MB) (MB) R4074222-1 05/26/24 18:45 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4074222-2 05/26/24 18:47 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 99.6 99.6 80.0-120 Lead 100 101 101 80.0-120 L1737842-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1737842-04 05/26/24 18:50 • (MS) R4074222-5 05/26/24 18:58 • (MSD) R4074222-6 05/26/24 19:01 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 5.29 97.6 97.5 92.3 92.3 1 75.0-125 0.0938 20 Lead 100 14.8 109 111 94.4 95.7 1 75.0-125 1.20 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 19 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 19 of 22 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 20 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 20 of 22 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/27/24 10:16 21 of 22 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738056 05/28/24 10:50 21 of 22 ANALYTICAL REPORT June 07, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1738737 Samples Received:05/21/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 07, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 1 of 20 June 07, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 1 of 20 June 07, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 1 of 20 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 CS-92_051724 L1738737-01 6 CS-92_SW-1_051724 L1738737-02 7 CS-93_051724 L1738737-03 8 CS-93_SW-1_051724 L1738737-04 9 SP-298_051724 L1738737-05 10 SP-299_051724 L1738737-06 11 SP-300_051724 L1738737-07 12 SP-301_051724 L1738737-08 13 SP-DUP-17 L1738737-09 14 Qc: Quality Control Summary 15 Total Solids by Method 2540 G-2011 15 Metals (ICP) by Method 6010B 16 Gl: Glossary of Terms 18 Al: Accreditations & Locations 19 Sc: Sample Chain of Custody 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 2 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 2 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 2 of 20 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-92_051724 L1738737-01 Solid Annie Matzke 05/17/24 14:00 05/21/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2290920 1 05/22/24 10:56 05/22/24 11:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2291330 1 05/23/24 22:35 05/24/24 11:23 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-92_SW-1_051724 L1738737-02 Solid Annie Matzke 05/17/24 14:50 05/21/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2290920 1 05/22/24 10:56 05/22/24 11:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2291330 1 05/23/24 22:35 05/24/24 11:26 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-93_051724 L1738737-03 Solid Annie Matzke 05/17/24 15:30 05/21/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2290920 1 05/22/24 10:56 05/22/24 11:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2291329 1 05/29/24 05:30 05/29/24 14:59 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-93_SW-1_051724 L1738737-04 Solid Annie Matzke 05/17/24 16:00 05/21/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2290920 1 05/22/24 10:56 05/22/24 11:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2291330 1 05/23/24 22:35 05/24/24 11:29 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-298_051724 L1738737-05 Solid Annie Matzke 05/20/24 12:34 05/21/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2290920 1 05/22/24 10:56 05/22/24 11:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2291330 1 05/23/24 22:35 05/24/24 11:32 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-299_051724 L1738737-06 Solid Annie Matzke 05/20/24 13:24 05/21/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2290920 1 05/22/24 10:56 05/22/24 11:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2291329 1 05/29/24 05:30 05/29/24 15:43 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-300_051724 L1738737-07 Solid Annie Matzke 05/20/24 13:19 05/21/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2290920 1 05/22/24 10:56 05/22/24 11:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2291329 1 05/29/24 05:30 05/29/24 15:46 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 3 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 3 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 3 of 20 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-301_051724 L1738737-08 Solid Annie Matzke 05/20/24 13:30 05/21/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2290920 1 05/22/24 10:56 05/22/24 11:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2291329 1 05/29/24 05:30 05/29/24 15:50 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-17 L1738737-09 Solid Annie Matzke 05/20/24 13:45 05/21/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2290920 1 05/22/24 10:56 05/22/24 11:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2291329 1 05/29/24 05:30 05/29/24 15:53 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 4 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 4 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 4 of 20 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 5 of 20 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 5 of 20 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 5 of 20 SAMPLE RESULTS - 01 L1738737 CS-92_051724 Collected date/time: 05/17/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.7 1 05/22/2024 11:08 WG2290920 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.6 0.530 2.05 1 05/24/2024 11:23 WG2291330 Lead 183 0.213 0.512 1 05/24/2024 11:23 WG2291330 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 6 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 6 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 6 of 20 SAMPLE RESULTS - 02 L1738737 CS-92_SW-1_051724 Collected date/time: 05/17/24 14:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.4 1 05/22/2024 11:08 WG2290920 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 22.6 0.543 2.10 1 05/24/2024 11:26 WG2291330 Lead 649 0.218 0.524 1 05/24/2024 11:26 WG2291330 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 7 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 7 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 7 of 20 SAMPLE RESULTS - 03 L1738737 CS-93_051724 Collected date/time: 05/17/24 15:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.6 1 05/22/2024 11:08 WG2290920 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.43 0.531 2.05 1 05/29/2024 14:59 WG2291329 Lead 80.4 J3 J6 O1 0.213 0.512 1 05/29/2024 14:59 WG2291329 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 8 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 8 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 8 of 20 SAMPLE RESULTS - 04 L1738737 CS-93_SW-1_051724 Collected date/time: 05/17/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.4 1 05/22/2024 11:08 WG2290920 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 27.7 0.561 2.17 1 05/24/2024 11:29 WG2291330 Lead 855 0.225 0.541 1 05/24/2024 11:29 WG2291330 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 9 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 9 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 9 of 20 SAMPLE RESULTS - 05 L1738737 SP-298_051724 Collected date/time: 05/20/24 12:34 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.4 1 05/22/2024 11:08 WG2290920 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.2 0.579 2.24 1 05/24/2024 11:32 WG2291330 Lead 191 0.233 0.559 1 05/24/2024 11:32 WG2291330 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 10 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 10 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 10 of 20 SAMPLE RESULTS - 06 L1738737 SP-299_051724 Collected date/time: 05/20/24 13:24 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.8 1 05/22/2024 11:08 WG2290920 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.0 0.583 2.25 1 05/29/2024 15:43 WG2291329 Lead 112 0.234 0.563 1 05/29/2024 15:43 WG2291329 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 11 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 11 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 11 of 20 SAMPLE RESULTS - 07 L1738737 SP-300_051724 Collected date/time: 05/20/24 13:19 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.7 1 05/22/2024 11:08 WG2290920 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.8 0.584 2.25 1 05/29/2024 15:46 WG2291329 Lead 290 0.234 0.563 1 05/29/2024 15:46 WG2291329 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 12 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 12 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 12 of 20 SAMPLE RESULTS - 08 L1738737 SP-301_051724 Collected date/time: 05/20/24 13:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.4 1 05/22/2024 11:08 WG2290920 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.7 0.586 2.26 1 05/29/2024 15:50 WG2291329 Lead 123 0.235 0.565 1 05/29/2024 15:50 WG2291329 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 13 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 13 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 13 of 20 SAMPLE RESULTS - 09 L1738737 SP-DUP-17 Collected date/time: 05/20/24 13:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.0 1 05/22/2024 11:08 WG2290920 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.1 0.576 2.22 1 05/29/2024 15:53 WG2291329 Lead 668 0.231 0.556 1 05/29/2024 15:53 WG2291329 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 14 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 14 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 14 of 20 QUALITY CONTROL SUMMARYWG2290920 Total Solids by Method 2540 G-2011 L1738737-01,02,03,04,05,06,07,08,09 Method Blank (MB) (MB) R4073079-1 05/22/24 11:08 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1738737-06 Original Sample (OS) • Duplicate (DUP) (OS) L1738737-06 05/22/24 11:08 • (DUP) R4073079-3 05/22/24 11:08 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 88.8 90.2 1 1.59 10 Laboratory Control Sample (LCS) (LCS) R4073079-2 05/22/24 11:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 15 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 15 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 15 of 20 QUALITY CONTROL SUMMARYWG2291329 Metals (ICP) by Method 6010B L1738737-03,06,07,08,09 Method Blank (MB) (MB) R4075158-1 05/29/24 14:52 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4075158-2 05/29/24 14:55 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 88.9 88.9 80.0-120 Lead 100 88.8 88.8 80.0-120 L1738737-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1738737-03 05/29/24 14:59 • (MS) R4075158-5 05/29/24 15:09 • (MSD) R4075158-6 05/29/24 15:12 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 102 8.43 95.6 89.5 85.1 79.1 1 75.0-125 6.55 20 Lead 102 80.4 159 126 77.2 44.7 1 75.0-125 J3 J6 23.3 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 16 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 16 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 16 of 20 QUALITY CONTROL SUMMARYWG2291330 Metals (ICP) by Method 6010B L1738737-01,02,04,05 Method Blank (MB) (MB) R4073723-1 05/24/24 10:13 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4073723-2 05/24/24 10:16 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 103 103 80.0-120 Lead 100 102 102 80.0-120 L1738702-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1738702-04 05/24/24 10:18 • (MS) R4073723-5 05/24/24 10:26 • (MSD) R4073723-6 05/24/24 10:29 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 2.48 106 108 104 105 1 75.0-125 1.37 20 Lead 100 21.9 128 127 106 105 1 75.0-125 0.441 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 17 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 17 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 17 of 20 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J3 The associated batch QC was outside the established quality control range for precision. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. O1 The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 18 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 18 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 18 of 20 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:07 19 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 11:14 19 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738737 06/07/24 13:43 19 of 20 ANALYTICAL REPORT May 28, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1738820 Samples Received:05/22/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: May 28, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 14:09 1 of 11 May 28, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 15:34 1 of 11 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 SP-276-A-052124 L1738820-01 5 SP-276-B-052124 L1738820-02 6 Qc: Quality Control Summary 7 Total Solids by Method 2540 G-2011 7 Metals (ICP) by Method 6010B 8 Gl: Glossary of Terms 9 Al: Accreditations & Locations 10 Sc: Sample Chain of Custody 11 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 14:09 2 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 15:34 2 of 11 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-276-A-052124 L1738820-01 Solid Annie Matzke 05/21/24 11:32 05/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2291683 1 05/23/24 08:01 05/23/24 08:09 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2292705 1 05/28/24 08:20 05/28/24 11:56 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-276-B-052124 L1738820-02 Solid Annie Matzke 05/21/24 11:45 05/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2291683 1 05/23/24 08:01 05/23/24 08:09 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2292705 1 05/28/24 08:20 05/28/24 11:58 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 14:09 3 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 15:34 3 of 11 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 14:09 4 of 11 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 15:34 4 of 11 SAMPLE RESULTS - 01 L1738820 SP-276-A-052124 Collected date/time: 05/21/24 11:32 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.6 1 05/23/2024 08:09 WG2291683 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.4 2.28 1 05/28/2024 11:56 WG2292705 Lead 307 0.571 1 05/28/2024 11:56 WG2292705 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 14:09 5 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 15:34 5 of 11 SAMPLE RESULTS - 02 L1738820 SP-276-B-052124 Collected date/time: 05/21/24 11:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.0 1 05/23/2024 08:09 WG2291683 Metals (ICP) by Method 6010B Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Arsenic 12.7 2.27 1 05/28/2024 11:58 WG2292705 Lead 298 0.568 1 05/28/2024 11:58 WG2292705 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 14:09 6 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 15:34 6 of 11 QUALITY CONTROL SUMMARYWG2291683 Total Solids by Method 2540 G-2011 L1738820-01,02 Method Blank (MB) (MB) R4073531-1 05/23/24 08:09 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1738820-02 Original Sample (OS) • Duplicate (DUP) (OS) L1738820-02 05/23/24 08:09 • (DUP) R4073531-3 05/23/24 08:09 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 88.0 88.4 1 0.441 10 Laboratory Control Sample (LCS) (LCS) R4073531-2 05/23/24 08:09 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 14:09 7 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 15:34 7 of 11 QUALITY CONTROL SUMMARYWG2292705 Metals (ICP) by Method 6010B L1738820-01,02 Method Blank (MB) (MB) R4074526-1 05/28/24 11:37 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4074526-2 05/28/24 11:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 92.4 92.4 80.0-120 Lead 100 94.7 94.7 80.0-120 L1739513-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1739513-03 05/28/24 11:42 • (MS) R4074526-5 05/28/24 11:50 • (MSD) R4074526-6 05/28/24 11:53 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 102 ND 83.4 79.9 80.2 76.8 1 75.0-125 4.25 20 Lead 102 6.74 92.7 87.1 84.3 78.8 1 75.0-125 6.19 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 14:09 8 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 15:34 8 of 11 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 14:09 9 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 15:34 9 of 11 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 14:09 10 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1738820 05/28/24 15:34 10 of 11 ANALYTICAL REPORT June 03, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1740281 Samples Received:05/24/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 03, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 1 of 29 June 04, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 1 of 29 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-302_052124 L1740281-01 7 SP-303_052124 L1740281-02 8 SP-304_052224 L1740281-03 9 SP-305_052224 L1740281-04 10 SP-306_052224 L1740281-05 11 SP-307_052224 L1740281-06 12 SP-308_052224 L1740281-07 13 SP-309_052224 L1740281-08 14 SP-310_052224 L1740281-09 15 SP-311_052224 L1740281-10 16 SP-312_052224 L1740281-11 17 SP-313_052224 L1740281-12 18 SP-314_052224 L1740281-13 19 SP-315_052224 L1740281-14 20 SP-DUP-18 L1740281-15 21 Qc: Quality Control Summary 22 Total Solids by Method 2540 G-2011 22 Metals (ICP) by Method 6010B 25 Gl: Glossary of Terms 26 Al: Accreditations & Locations 27 Sc: Sample Chain of Custody 28 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 2 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 2 of 29 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-302_052124 L1740281-01 Solid Annie Matzke 05/21/24 15:15 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293550 1 05/27/24 09:15 05/27/24 09:22 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 20:51 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-303_052124 L1740281-02 Solid Annie Matzke 05/21/24 15:04 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293551 1 05/29/24 06:42 05/29/24 06:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 20:52 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-304_052224 L1740281-03 Solid Annie Matzke 05/22/24 11:06 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293551 1 05/29/24 06:42 05/29/24 06:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 20:54 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-305_052224 L1740281-04 Solid Annie Matzke 05/22/24 11:17 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293551 1 05/29/24 06:42 05/29/24 06:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 20:56 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-306_052224 L1740281-05 Solid Annie Matzke 05/22/24 11:47 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293551 1 05/29/24 06:42 05/29/24 06:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 20:32 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-307_052224 L1740281-06 Solid Annie Matzke 05/22/24 11:59 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293551 1 05/29/24 06:42 05/29/24 06:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 20:57 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-308_052224 L1740281-07 Solid Annie Matzke 05/22/24 12:41 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293551 1 05/29/24 06:42 05/29/24 06:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 20:59 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 3 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 3 of 29 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-309_052224 L1740281-08 Solid Annie Matzke 05/22/24 12:57 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293551 1 05/29/24 06:42 05/29/24 06:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 21:01 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-310_052224 L1740281-09 Solid Annie Matzke 05/22/24 13:21 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293551 1 05/29/24 06:42 05/29/24 06:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 21:02 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-311_052224 L1740281-10 Solid Annie Matzke 05/22/24 13:34 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293551 1 05/29/24 06:42 05/29/24 06:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 21:04 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-312_052224 L1740281-11 Solid Annie Matzke 05/22/24 15:10 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293551 1 05/29/24 06:42 05/29/24 06:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 21:09 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-313_052224 L1740281-12 Solid Annie Matzke 05/22/24 15:24 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293552 1 05/27/24 10:44 05/27/24 10:49 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 21:11 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-314_052224 L1740281-13 Solid Annie Matzke 05/22/24 15:46 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293552 1 05/27/24 10:44 05/27/24 10:49 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 21:12 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-315_052224 L1740281-14 Solid Annie Matzke 05/22/24 15:57 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293552 1 05/27/24 10:44 05/27/24 10:49 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 21:14 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 4 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 4 of 29 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-DUP-18 L1740281-15 Solid Annie Matzke 05/22/24 13:45 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2293552 1 05/27/24 10:44 05/27/24 10:49 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2293707 1 05/30/24 23:33 05/31/24 21:16 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 5 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 5 of 29 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 6 of 29 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 6 of 29 SAMPLE RESULTS - 01 L1740281 SP-302_052124 Collected date/time: 05/21/24 15:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.0 1 05/27/2024 09:22 WG2293550 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.8 0.589 2.27 1 05/31/2024 20:51 WG2293707 Lead 161 0.236 0.568 1 05/31/2024 20:51 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 7 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 7 of 29 SAMPLE RESULTS - 02 L1740281 SP-303_052124 Collected date/time: 05/21/24 15:04 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.9 1 05/29/2024 06:48 WG2293551 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.1 0.596 2.30 1 05/31/2024 20:52 WG2293707 Lead 201 0.239 0.575 1 05/31/2024 20:52 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 8 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 8 of 29 SAMPLE RESULTS - 03 L1740281 SP-304_052224 Collected date/time: 05/22/24 11:06 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.6 1 05/29/2024 06:48 WG2293551 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.0 0.578 2.23 1 05/31/2024 20:54 WG2293707 Lead 222 0.232 0.558 1 05/31/2024 20:54 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 9 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 9 of 29 SAMPLE RESULTS - 04 L1740281 SP-305_052224 Collected date/time: 05/22/24 11:17 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.7 1 05/29/2024 06:48 WG2293551 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.6 0.571 2.21 1 05/31/2024 20:56 WG2293707 Lead 243 0.229 0.552 1 05/31/2024 20:56 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 10 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 10 of 29 SAMPLE RESULTS - 05 L1740281 SP-306_052224 Collected date/time: 05/22/24 11:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.2 1 05/29/2024 06:48 WG2293551 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.9 0.580 2.24 1 05/31/2024 20:32 WG2293707 Lead 208 J3 J5 0.233 0.560 1 05/31/2024 20:32 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 11 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 11 of 29 SAMPLE RESULTS - 06 L1740281 SP-307_052224 Collected date/time: 05/22/24 11:59 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.6 1 05/29/2024 06:48 WG2293551 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.0 0.584 2.26 1 05/31/2024 20:57 WG2293707 Lead 229 0.235 0.564 1 05/31/2024 20:57 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 12 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 12 of 29 SAMPLE RESULTS - 07 L1740281 SP-308_052224 Collected date/time: 05/22/24 12:41 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.6 1 05/29/2024 06:48 WG2293551 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.9 0.566 2.18 1 05/31/2024 20:59 WG2293707 Lead 190 0.227 0.546 1 05/31/2024 20:59 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 13 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 13 of 29 SAMPLE RESULTS - 08 L1740281 SP-309_052224 Collected date/time: 05/22/24 12:57 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.4 1 05/29/2024 06:48 WG2293551 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.2 0.580 2.24 1 05/31/2024 21:01 WG2293707 Lead 143 0.233 0.560 1 05/31/2024 21:01 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 14 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 14 of 29 SAMPLE RESULTS - 09 L1740281 SP-310_052224 Collected date/time: 05/22/24 13:21 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.1 1 05/29/2024 06:48 WG2293551 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.7 0.588 2.27 1 05/31/2024 21:02 WG2293707 Lead 422 0.236 0.568 1 05/31/2024 21:02 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 15 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 15 of 29 SAMPLE RESULTS - 10 L1740281 SP-311_052224 Collected date/time: 05/22/24 13:34 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.2 1 05/29/2024 06:48 WG2293551 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.8 0.574 2.22 1 05/31/2024 21:04 WG2293707 Lead 216 0.231 0.554 1 05/31/2024 21:04 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 16 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 16 of 29 SAMPLE RESULTS - 11 L1740281 SP-312_052224 Collected date/time: 05/22/24 15:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.7 1 05/29/2024 06:48 WG2293551 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.7 0.571 2.21 1 05/31/2024 21:09 WG2293707 Lead 120 0.229 0.551 1 05/31/2024 21:09 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 17 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 17 of 29 SAMPLE RESULTS - 12 L1740281 SP-313_052224 Collected date/time: 05/22/24 15:24 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.6 1 05/27/2024 10:49 WG2293552 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.9 0.585 2.26 1 05/31/2024 21:11 WG2293707 Lead 213 0.235 0.565 1 05/31/2024 21:11 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 18 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 18 of 29 SAMPLE RESULTS - 13 L1740281 SP-314_052224 Collected date/time: 05/22/24 15:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.0 1 05/27/2024 10:49 WG2293552 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.4 0.575 2.22 1 05/31/2024 21:12 WG2293707 Lead 347 0.231 0.555 1 05/31/2024 21:12 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 19 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 19 of 29 SAMPLE RESULTS - 14 L1740281 SP-315_052224 Collected date/time: 05/22/24 15:57 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.7 1 05/27/2024 10:49 WG2293552 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.6 0.577 2.23 1 05/31/2024 21:14 WG2293707 Lead 301 0.232 0.557 1 05/31/2024 21:14 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 20 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 20 of 29 SAMPLE RESULTS - 15 L1740281 SP-DUP-18 Collected date/time: 05/22/24 13:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.3 1 05/27/2024 10:49 WG2293552 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.6 0.580 2.24 1 05/31/2024 21:16 WG2293707 Lead 183 0.233 0.560 1 05/31/2024 21:16 WG2293707 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 21 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 21 of 29 QUALITY CONTROL SUMMARYWG2293550 Total Solids by Method 2540 G-2011 L1740281-01 Method Blank (MB) (MB) R4074402-1 05/27/24 09:22 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1740272-05 Original Sample (OS) • Duplicate (DUP) (OS) L1740272-05 05/27/24 09:22 • (DUP) R4074402-3 05/27/24 09:22 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 82.4 81.6 1 0.912 10 Laboratory Control Sample (LCS) (LCS) R4074402-2 05/27/24 09:22 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 22 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 22 of 29 QUALITY CONTROL SUMMARYWG2293551 Total Solids by Method 2540 G-2011 L1740281-02,03,04,05,06,07,08,09,10,11 Method Blank (MB) (MB) R4074983-1 05/29/24 06:48 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1740281-05 Original Sample (OS) • Duplicate (DUP) (OS) L1740281-05 05/29/24 06:48 • (DUP) R4074983-3 05/29/24 06:48 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 89.2 89.8 1 0.604 10 Laboratory Control Sample (LCS) (LCS) R4074983-2 05/29/24 06:48 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 23 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 23 of 29 QUALITY CONTROL SUMMARYWG2293552 Total Solids by Method 2540 G-2011 L1740281-12,13,14,15 Method Blank (MB) (MB) R4074427-1 05/27/24 10:49 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1740281-15 Original Sample (OS) • Duplicate (DUP) (OS) L1740281-15 05/27/24 10:49 • (DUP) R4074427-3 05/27/24 10:49 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 89.3 90.2 1 0.996 10 Laboratory Control Sample (LCS) (LCS) R4074427-2 05/27/24 10:49 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 24 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 24 of 29 QUALITY CONTROL SUMMARYWG2293707 Metals (ICP) by Method 6010B L1740281-01,02,03,04,05,06,07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R4076050-1 05/31/24 20:29 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4076050-2 05/31/24 20:31 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 92.6 92.6 80.0-120 Lead 100 92.0 92.0 80.0-120 L1740281-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1740281-05 05/31/24 20:32 • (MS) R4076050-5 05/31/24 20:37 • (MSD) R4076050-6 05/31/24 20:39 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 112 14.9 126 129 99.0 101 1 75.0-125 2.11 20 Lead 112 208 309 423 90.9 192 1 75.0-125 J3 J5 31.0 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 25 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 25 of 29 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J3 The associated batch QC was outside the established quality control range for precision. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 26 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 26 of 29 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/03/24 18:04 27 of 29 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740281 06/04/24 10:11 27 of 29 ANALYTICAL REPORT June 03, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1740302 Samples Received:05/24/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 03, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 1 of 12 June 04, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 1 of 12 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 SP-316_052324 L1740302-01 5 SP-317_052324 L1740302-02 6 SP-318_052324 L1740302-03 7 Qc: Quality Control Summary 8 Total Solids by Method 2540 G-2011 8 Metals (ICP) by Method 6010B 9 Gl: Glossary of Terms 10 Al: Accreditations & Locations 11 Sc: Sample Chain of Custody 12 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 2 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 2 of 12 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-316_052324 L1740302-01 Solid Annie Matzke 05/23/24 10:22 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294611 1 05/29/24 08:28 05/29/24 08:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295468 1 06/02/24 22:26 06/03/24 08:43 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-317_052324 L1740302-02 Solid Annie Matzke 05/23/24 10:46 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294611 1 05/29/24 08:28 05/29/24 08:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295468 1 06/02/24 22:26 06/03/24 08:44 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-318_052324 L1740302-03 Solid Annie Matzke 05/23/24 11:15 05/24/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294611 1 05/29/24 08:28 05/29/24 08:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295468 1 06/02/24 22:26 06/03/24 08:46 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 3 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 3 of 12 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 4 of 12 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 4 of 12 SAMPLE RESULTS - 01 L1740302 SP-316_052324 Collected date/time: 05/23/24 10:22 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.8 1 05/29/2024 08:34 WG2294611 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.8 0.564 2.18 1 06/03/2024 08:43 WG2295468 Lead 179 0.227 0.545 1 06/03/2024 08:43 WG2295468 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 5 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 5 of 12 SAMPLE RESULTS - 02 L1740302 SP-317_052324 Collected date/time: 05/23/24 10:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.5 1 05/29/2024 08:34 WG2294611 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.0 0.585 2.26 1 06/03/2024 08:44 WG2295468 Lead 302 0.235 0.565 1 06/03/2024 08:44 WG2295468 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 6 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 6 of 12 SAMPLE RESULTS - 03 L1740302 SP-318_052324 Collected date/time: 05/23/24 11:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.5 1 05/29/2024 08:34 WG2294611 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.6 0.585 2.26 1 06/03/2024 08:46 WG2295468 Lead 171 0.235 0.565 1 06/03/2024 08:46 WG2295468 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 7 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 7 of 12 QUALITY CONTROL SUMMARYWG2294611 Total Solids by Method 2540 G-2011 L1740302-01,02,03 Method Blank (MB) (MB) R4074979-1 05/29/24 08:34 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1740300-02 Original Sample (OS) • Duplicate (DUP) (OS) L1740300-02 05/29/24 08:34 • (DUP) R4074979-3 05/29/24 08:34 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 98.7 91.2 1 7.96 10 Laboratory Control Sample (LCS) (LCS) R4074979-2 05/29/24 08:34 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 8 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 8 of 12 QUALITY CONTROL SUMMARYWG2295468 Metals (ICP) by Method 6010B L1740302-01,02,03 Method Blank (MB) (MB) R4076545-1 06/03/24 08:15 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4076545-2 06/03/24 08:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 98.8 98.8 80.0-120 Lead 100 98.1 98.1 80.0-120 L1740346-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1740346-02 06/03/24 08:18 • (MS) R4076545-5 06/03/24 08:23 • (MSD) R4076545-6 06/03/24 08:25 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 8.03 96.5 99.9 88.5 91.8 1 75.0-125 3.42 20 Lead 100 29.2 126 126 96.9 96.8 1 75.0-125 0.0594 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 9 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 9 of 12 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 10 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 10 of 12 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/03/24 16:26 11 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740302 06/04/24 10:11 11 of 12 ANALYTICAL REPORT June 04, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1740714 Samples Received:05/25/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 04, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 1 of 20 June 04, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 1 of 20 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 CS-94_052424 L1740714-01 6 CS-94_SW1_052324 L1740714-02 7 CS-95-052324 L1740714-03 8 CS-95-SW-1_052324 L1740714-04 9 CS-96_052424 L1740714-05 10 CS-96-SW-1_052424 L1740714-06 11 SP-319_052424 L1740714-07 12 SP-320_052424 L1740714-08 13 SP-321_052424 L1740714-09 14 SP-DUP-19 L1740714-10 15 Qc: Quality Control Summary 16 Total Solids by Method 2540 G-2011 16 Metals (ICP) by Method 6010B 17 Gl: Glossary of Terms 18 Al: Accreditations & Locations 19 Sc: Sample Chain of Custody 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 2 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 2 of 20 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-94_052424 L1740714-01 Solid Annie Matzke 05/24/24 14:36 05/25/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294104 1 05/29/24 09:50 05/29/24 10:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295476 1 06/03/24 23:10 06/04/24 11:11 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-94_SW1_052324 L1740714-02 Solid Annie Matzke 05/23/24 14:20 05/25/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294104 1 05/29/24 09:50 05/29/24 10:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295476 1 06/03/24 23:10 06/04/24 11:14 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-95-052324 L1740714-03 Solid Annie Matzke 05/23/24 15:00 05/25/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294104 1 05/29/24 09:50 05/29/24 10:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295476 1 06/03/24 23:10 06/04/24 11:17 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-95-SW-1_052324 L1740714-04 Solid Annie Matzke 05/23/24 15:50 05/25/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294104 1 05/29/24 09:50 05/29/24 10:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295476 1 06/03/24 23:10 06/04/24 11:20 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-96_052424 L1740714-05 Solid Annie Matzke 05/24/24 10:40 05/25/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294104 1 05/29/24 09:50 05/29/24 10:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295476 1 06/03/24 23:10 06/04/24 11:24 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-96-SW-1_052424 L1740714-06 Solid Annie Matzke 05/24/24 11:10 05/25/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294104 1 05/29/24 09:50 05/29/24 10:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295476 1 06/03/24 23:10 06/04/24 11:47 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-319_052424 L1740714-07 Solid Annie Matzke 05/24/24 13:09 05/25/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294104 1 05/29/24 09:50 05/29/24 10:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295476 1 06/03/24 23:10 06/04/24 10:22 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 3 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 3 of 20 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-320_052424 L1740714-08 Solid Annie Matzke 05/24/24 12:52 05/25/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294104 1 05/29/24 09:50 05/29/24 10:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295476 1 06/03/24 23:10 06/04/24 11:50 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-321_052424 L1740714-09 Solid Annie Matzke 05/24/24 14:10 05/25/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294104 1 05/29/24 09:50 05/29/24 10:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295476 1 06/03/24 23:10 06/04/24 11:53 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-19 L1740714-10 Solid Annie Matzke 05/24/24 14:00 05/25/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2294104 1 05/29/24 09:50 05/29/24 10:05 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2295476 1 06/03/24 23:10 06/04/24 11:56 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 4 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 4 of 20 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 5 of 20 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 5 of 20 SAMPLE RESULTS - 01 L1740714 CS-94_052424 Collected date/time: 05/24/24 14:36 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.7 1 05/29/2024 10:05 WG2294104 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 6.04 0.565 2.18 1 06/04/2024 11:11 WG2295476 Lead 65.0 0.227 0.545 1 06/04/2024 11:11 WG2295476 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 6 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 6 of 20 SAMPLE RESULTS - 02 L1740714 CS-94_SW1_052324 Collected date/time: 05/23/24 14:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.1 1 05/29/2024 10:05 WG2294104 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 24.1 0.575 2.22 1 06/04/2024 11:14 WG2295476 Lead 733 0.231 0.555 1 06/04/2024 11:14 WG2295476 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 7 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 7 of 20 SAMPLE RESULTS - 03 L1740714 CS-95-052324 Collected date/time: 05/23/24 15:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.0 1 05/29/2024 10:05 WG2294104 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.67 0.557 2.15 1 06/04/2024 11:17 WG2295476 Lead 131 0.224 0.538 1 06/04/2024 11:17 WG2295476 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 8 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 8 of 20 SAMPLE RESULTS - 04 L1740714 CS-95-SW-1_052324 Collected date/time: 05/23/24 15:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.3 1 05/29/2024 10:05 WG2294104 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 37.5 0.568 2.19 1 06/04/2024 11:20 WG2295476 Lead 1320 0.228 0.548 1 06/04/2024 11:20 WG2295476 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 9 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 9 of 20 SAMPLE RESULTS - 05 L1740714 CS-96_052424 Collected date/time: 05/24/24 10:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.6 1 05/29/2024 10:05 WG2294104 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.6 0.553 2.14 1 06/04/2024 11:24 WG2295476 Lead 142 0.222 0.534 1 06/04/2024 11:24 WG2295476 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 10 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 10 of 20 SAMPLE RESULTS - 06 L1740714 CS-96-SW-1_052424 Collected date/time: 05/24/24 11:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.4 1 05/29/2024 10:05 WG2294104 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 28.8 0.555 2.14 1 06/04/2024 11:47 WG2295476 Lead 902 0.223 0.535 1 06/04/2024 11:47 WG2295476 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 11 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 11 of 20 SAMPLE RESULTS - 07 L1740714 SP-319_052424 Collected date/time: 05/24/24 13:09 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.6 1 05/29/2024 10:05 WG2294104 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.9 0.547 2.11 1 06/04/2024 10:22 WG2295476 Lead 335 J6 0.220 0.528 1 06/04/2024 10:22 WG2295476 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 12 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 12 of 20 SAMPLE RESULTS - 08 L1740714 SP-320_052424 Collected date/time: 05/24/24 12:52 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.9 1 05/29/2024 10:05 WG2294104 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.0 0.540 2.09 1 06/04/2024 11:50 WG2295476 Lead 221 0.217 0.522 1 06/04/2024 11:50 WG2295476 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 13 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 13 of 20 SAMPLE RESULTS - 09 L1740714 SP-321_052424 Collected date/time: 05/24/24 14:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.6 1 05/29/2024 10:05 WG2294104 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.1 0.559 2.16 1 06/04/2024 11:53 WG2295476 Lead 246 0.225 0.540 1 06/04/2024 11:53 WG2295476 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 14 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 14 of 20 SAMPLE RESULTS - 10 L1740714 SP-DUP-19 Collected date/time: 05/24/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.9 1 05/29/2024 10:05 WG2294104 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.5 0.564 2.18 1 06/04/2024 11:56 WG2295476 Lead 200 0.226 0.544 1 06/04/2024 11:56 WG2295476 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 15 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 15 of 20 QUALITY CONTROL SUMMARYWG2294104 Total Solids by Method 2540 G-2011 L1740714-01,02,03,04,05,06,07,08,09,10 Method Blank (MB) (MB) R4075176-1 05/29/24 10:05 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1740714-04 Original Sample (OS) • Duplicate (DUP) (OS) L1740714-04 05/29/24 10:05 • (DUP) R4075176-3 05/29/24 10:05 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 91.3 90.9 1 0.399 10 Laboratory Control Sample (LCS) (LCS) R4075176-2 05/29/24 10:05 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 16 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 16 of 20 QUALITY CONTROL SUMMARYWG2295476 Metals (ICP) by Method 6010B L1740714-01,02,03,04,05,06,07,08,09,10 Method Blank (MB) (MB) R4076983-1 06/04/24 10:16 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead 0.239 J 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4076983-2 06/04/24 10:19 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 100 100 80.0-120 Lead 100 97.7 97.7 80.0-120 L1740714-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1740714-07 06/04/24 10:22 • (MS) R4076983-5 06/04/24 10:32 • (MSD) R4076983-6 06/04/24 10:35 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 106 14.9 115 112 94.5 92.1 1 75.0-125 2.29 20 Lead 106 335 404 420 64.9 80.2 1 75.0-125 J6 3.93 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 17 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 17 of 20 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 18 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 18 of 20 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 14:39 19 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1740714 06/04/24 16:21 19 of 20 ANALYTICAL REPORT June 06, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1741510 Samples Received:05/30/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 06, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 1 of 15 June 06, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 1 of 15 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 SP-322_052824 L1741510-01 5 SP-323_052824 L1741510-02 6 SP-324_052824 L1741510-03 7 SP-325_052824 L1741510-04 8 SP-326_052824 L1741510-05 9 Qc: Quality Control Summary 10 Total Solids by Method 2540 G-2011 10 Metals (ICP) by Method 6010B 11 Gl: Glossary of Terms 13 Al: Accreditations & Locations 14 Sc: Sample Chain of Custody 15 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 2 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 2 of 15 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-322_052824 L1741510-01 Solid AM/DS 05/28/24 12:21 05/30/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2296643 1 06/01/24 15:34 06/01/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2299624 1 06/06/24 10:33 06/06/24 13:41 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-323_052824 L1741510-02 Solid AM/DS 05/28/24 12:36 05/30/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2296643 1 06/01/24 15:34 06/01/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2297403 1 06/04/24 22:46 06/05/24 11:37 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-324_052824 L1741510-03 Solid AM/DS 05/28/24 12:49 05/30/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2296643 1 06/01/24 15:34 06/01/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2297403 1 06/04/24 22:46 06/05/24 11:40 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-325_052824 L1741510-04 Solid AM/DS 05/28/24 12:59 05/30/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2296643 1 06/01/24 15:34 06/01/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2297403 1 06/04/24 22:46 06/05/24 11:43 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-326_052824 L1741510-05 Solid AM/DS 05/28/24 13:28 05/30/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2296643 1 06/01/24 15:34 06/01/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2297403 1 06/04/24 22:46 06/05/24 11:46 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 3 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 3 of 15 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 4 of 15 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 4 of 15 SAMPLE RESULTS - 01 L1741510 SP-322_052824 Collected date/time: 05/28/24 12:21 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.0 1 06/01/2024 15:48 WG2296643 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.90 0.545 2.11 1 06/06/2024 13:41 WG2299624 Lead 232 0.219 0.526 1 06/06/2024 13:41 WG2299624 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 5 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 5 of 15 SAMPLE RESULTS - 02 L1741510 SP-323_052824 Collected date/time: 05/28/24 12:36 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.4 1 06/01/2024 15:48 WG2296643 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.8 0.549 2.12 1 06/05/2024 11:37 WG2297403 Lead 243 0.220 0.530 1 06/05/2024 11:37 WG2297403 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 6 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 6 of 15 SAMPLE RESULTS - 03 L1741510 SP-324_052824 Collected date/time: 05/28/24 12:49 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.4 1 06/01/2024 15:48 WG2296643 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.7 0.567 2.19 1 06/05/2024 11:40 WG2297403 Lead 184 0.228 0.547 1 06/05/2024 11:40 WG2297403 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 7 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 7 of 15 SAMPLE RESULTS - 04 L1741510 SP-325_052824 Collected date/time: 05/28/24 12:59 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.5 1 06/01/2024 15:48 WG2296643 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.0 0.572 2.21 1 06/05/2024 11:43 WG2297403 Lead 225 0.230 0.552 1 06/05/2024 11:43 WG2297403 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 8 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 8 of 15 SAMPLE RESULTS - 05 L1741510 SP-326_052824 Collected date/time: 05/28/24 13:28 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.8 1 06/01/2024 15:48 WG2296643 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.4 0.535 2.07 1 06/05/2024 11:46 WG2297403 Lead 352 0.215 0.517 1 06/05/2024 11:46 WG2297403 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 9 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 9 of 15 QUALITY CONTROL SUMMARYWG2296643 Total Solids by Method 2540 G-2011 L1741510-01,02,03,04,05 Method Blank (MB) (MB) R4076514-1 06/01/24 15:48 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1741491-05 Original Sample (OS) • Duplicate (DUP) (OS) L1741491-05 06/01/24 15:48 • (DUP) R4076514-3 06/01/24 15:48 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 74.6 74.3 1 0.447 10 Laboratory Control Sample (LCS) (LCS) R4076514-2 06/01/24 15:48 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 10 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 10 of 15 QUALITY CONTROL SUMMARYWG2297403 Metals (ICP) by Method 6010B L1741510-02,03,04,05 Method Blank (MB) (MB) R4077617-1 06/05/24 10:29 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4077617-2 06/05/24 10:32 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.0 93.0 80.0-120 Lead 100 93.6 93.6 80.0-120 L1740960-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1740960-01 06/05/24 10:35 • (MS) R4077617-5 06/05/24 10:42 • (MSD) R4077617-6 06/05/24 10:45 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 103 2.90 116 112 110 105 1 75.0-125 4.10 20 Lead 103 6.62 119 115 109 105 1 75.0-125 3.42 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 11 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 11 of 15 QUALITY CONTROL SUMMARYWG2299624 Metals (ICP) by Method 6010B L1741510-01 Method Blank (MB) (MB) R4078177-1 06/06/24 13:38 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4078177-2 06/06/24 13:39 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 87.4 87.4 80.0-120 Lead 100 87.0 87.0 80.0-120 L1741510-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1741510-01 06/06/24 13:41 • (MS) R4078177-5 06/06/24 13:46 • (MSD) R4078177-6 06/06/24 13:48 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 105 9.90 104 94.6 89.8 80.4 1 75.0-125 9.89 20 Lead 105 232 352 319 114 82.7 1 75.0-125 9.99 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 12 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 12 of 15 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 13 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 13 of 15 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 15:17 14 of 15 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1741510 06/06/24 17:06 14 of 15 ANALYTICAL REPORT June 17, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1744931 Samples Received:06/08/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 17, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 1 of 21 June 18, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 1 of 21 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SP-350_060324 L1744931-01 6 SP-351_060324 L1744931-02 7 SP-352_060324 L1744931-03 8 SP-353_060324 L1744931-04 9 SP-354_060324 L1744931-05 10 SP-355_060324 L1744931-06 11 SP-356_060324 L1744931-07 12 SP-357_060324 L1744931-08 13 SP-358_060324 L1744931-09 14 SP-DUP-22 L1744931-10 15 Qc: Quality Control Summary 16 Total Solids by Method 2540 G-2011 16 Metals (ICP) by Method 6010B 18 Gl: Glossary of Terms 19 Al: Accreditations & Locations 20 Sc: Sample Chain of Custody 21 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 2 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 2 of 21 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-350_060324 L1744931-01 Solid Annie Matzke 06/03/24 10:45 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302302 1 06/11/24 11:53 06/11/24 12:06 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 15:55 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-351_060324 L1744931-02 Solid Annie Matzke 06/03/24 10:08 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302302 1 06/11/24 11:53 06/11/24 12:06 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 15:57 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-352_060324 L1744931-03 Solid Annie Matzke 06/03/24 10:20 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302302 1 06/11/24 11:53 06/11/24 12:06 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 15:58 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-353_060324 L1744931-04 Solid Annie Matzke 06/03/24 10:20 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302304 1 06/11/24 11:03 06/11/24 11:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 16:00 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-354_060324 L1744931-05 Solid Annie Matzke 06/03/24 10:45 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302304 1 06/11/24 11:03 06/11/24 11:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 16:02 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-355_060324 L1744931-06 Solid Annie Matzke 06/03/24 10:31 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302304 1 06/11/24 11:03 06/11/24 11:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 16:03 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-356_060324 L1744931-07 Solid Annie Matzke 06/03/24 11:30 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302304 1 06/11/24 11:03 06/11/24 11:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 16:05 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 3 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 3 of 21 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-357_060324 L1744931-08 Solid Annie Matzke 06/03/24 11:47 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302304 1 06/11/24 11:03 06/11/24 11:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 16:07 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-358_060324 L1744931-09 Solid Annie Matzke 06/03/24 11:46 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302304 1 06/11/24 11:03 06/11/24 11:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 16:09 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-22 L1744931-10 Solid Annie Matzke 06/03/24 09:37 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302304 1 06/11/24 11:03 06/11/24 11:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 16:14 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 4 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 4 of 21 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 5 of 21 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 5 of 21 SAMPLE RESULTS - 01 L1744931 SP-350_060324 Collected date/time: 06/03/24 10:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.1 1 06/11/2024 12:06 WG2302302 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.1 0.563 2.17 1 06/17/2024 15:55 WG2303333 Lead 587 0.226 0.543 1 06/17/2024 15:55 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 6 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 6 of 21 SAMPLE RESULTS - 02 L1744931 SP-351_060324 Collected date/time: 06/03/24 10:08 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.6 1 06/11/2024 12:06 WG2302302 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.7 0.559 2.16 1 06/17/2024 15:57 WG2303333 Lead 350 0.225 0.540 1 06/17/2024 15:57 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 7 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 7 of 21 SAMPLE RESULTS - 03 L1744931 SP-352_060324 Collected date/time: 06/03/24 10:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.5 1 06/11/2024 12:06 WG2302302 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.3 0.560 2.16 1 06/17/2024 15:58 WG2303333 Lead 305 0.225 0.540 1 06/17/2024 15:58 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 8 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 8 of 21 SAMPLE RESULTS - 04 L1744931 SP-353_060324 Collected date/time: 06/03/24 10:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.8 1 06/11/2024 11:16 WG2302304 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.2 0.552 2.13 1 06/17/2024 16:00 WG2303333 Lead 499 0.222 0.533 1 06/17/2024 16:00 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 9 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 9 of 21 SAMPLE RESULTS - 05 L1744931 SP-354_060324 Collected date/time: 06/03/24 10:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.4 1 06/11/2024 11:16 WG2302304 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 22.3 0.543 2.10 1 06/17/2024 16:02 WG2303333 Lead 586 0.218 0.524 1 06/17/2024 16:02 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 10 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 10 of 21 SAMPLE RESULTS - 06 L1744931 SP-355_060324 Collected date/time: 06/03/24 10:31 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.4 1 06/11/2024 11:16 WG2302304 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.3 0.561 2.16 1 06/17/2024 16:03 WG2303333 Lead 401 0.225 0.541 1 06/17/2024 16:03 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 11 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 11 of 21 SAMPLE RESULTS - 07 L1744931 SP-356_060324 Collected date/time: 06/03/24 11:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.6 1 06/11/2024 11:16 WG2302304 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.1 0.542 2.09 1 06/17/2024 16:05 WG2303333 Lead 118 0.218 0.523 1 06/17/2024 16:05 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 12 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 12 of 21 SAMPLE RESULTS - 08 L1744931 SP-357_060324 Collected date/time: 06/03/24 11:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.2 1 06/11/2024 11:16 WG2302304 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.7 0.544 2.10 1 06/17/2024 16:07 WG2303333 Lead 177 0.218 0.525 1 06/17/2024 16:07 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 13 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 13 of 21 SAMPLE RESULTS - 09 L1744931 SP-358_060324 Collected date/time: 06/03/24 11:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.3 1 06/11/2024 11:16 WG2302304 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.1 0.532 2.06 1 06/17/2024 16:09 WG2303333 Lead 166 0.214 0.514 1 06/17/2024 16:09 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 14 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 14 of 21 SAMPLE RESULTS - 10 L1744931 SP-DUP-22 Collected date/time: 06/03/24 09:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.3 1 06/11/2024 11:16 WG2302304 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.5 0.561 2.17 1 06/17/2024 16:14 WG2303333 Lead 574 0.225 0.542 1 06/17/2024 16:14 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 15 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 15 of 21 QUALITY CONTROL SUMMARYWG2302302 Total Solids by Method 2540 G-2011 L1744931-01,02,03 Method Blank (MB) (MB) R4080464-1 06/11/24 12:06 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1744890-51 Original Sample (OS) • Duplicate (DUP) (OS) L1744890-51 06/11/24 12:06 • (DUP) R4080464-3 06/11/24 12:06 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 98.1 98.1 1 0.0457 10 Laboratory Control Sample (LCS) (LCS) R4080464-2 06/11/24 12:06 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 16 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 16 of 21 QUALITY CONTROL SUMMARYWG2302304 Total Solids by Method 2540 G-2011 L1744931-04,05,06,07,08,09,10 Method Blank (MB) (MB) R4080462-1 06/11/24 11:16 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1744931-04 Original Sample (OS) • Duplicate (DUP) (OS) L1744931-04 06/11/24 11:16 • (DUP) R4080462-3 06/11/24 11:16 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 93.8 92.3 1 1.62 10 Laboratory Control Sample (LCS) (LCS) R4080462-2 06/11/24 11:16 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 17 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 17 of 21 QUALITY CONTROL SUMMARYWG2303333 Metals (ICP) by Method 6010B L1744931-01,02,03,04,05,06,07,08,09,10 Method Blank (MB) (MB) R4082940-1 06/17/24 15:20 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4082940-2 06/17/24 15:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 101 101 80.0-120 Lead 100 101 101 80.0-120 L1744999-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1744999-02 06/17/24 15:36 • (MS) R4082940-5 06/17/24 15:41 • (MSD) R4082940-6 06/17/24 15:43 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 109 0.710 111 108 102 98.5 1 75.0-125 3.17 20 Lead 109 2.43 111 109 100 98.2 1 75.0-125 1.98 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 18 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 18 of 21 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 19 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 19 of 21 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/17/24 21:45 20 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744931 06/18/24 09:31 20 of 21 ANALYTICAL REPORT June 18, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1744933 Samples Received:06/08/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 18, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 1 of 24 June 19, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 1 of 24 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SP-359_060724 L1744933-01 6 SP-360_060724 L1744933-02 7 SP-DUP_23 L1744933-03 8 SP-361_060724 L1744933-04 9 SP-362_060724 L1744933-05 10 SP-363_060724 L1744933-06 11 SP-364_060724 L1744933-07 12 SP-365_060724 L1744933-08 13 SP-366_060724 L1744933-09 14 Qc: Quality Control Summary 15 Total Solids by Method 2540 G-2011 15 Metals (ICP) by Method 6010B 18 Gl: Glossary of Terms 22 Al: Accreditations & Locations 23 Sc: Sample Chain of Custody 24 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 2 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 2 of 24 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-359_060724 L1744933-01 Solid Annie Matzke 06/07/24 10:46 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302304 1 06/11/24 11:03 06/11/24 11:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303328 1 06/17/24 21:47 06/18/24 16:08 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-360_060724 L1744933-02 Solid Annie Matzke 06/07/24 11:09 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302304 1 06/11/24 11:03 06/11/24 11:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303328 1 06/17/24 21:47 06/18/24 16:09 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP_23 L1744933-03 Solid Annie Matzke 06/07/24 10:31 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302304 1 06/11/24 11:03 06/11/24 11:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303329 1 06/15/24 08:32 06/16/24 11:56 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-361_060724 L1744933-04 Solid Annie Matzke 06/07/24 11:16 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302667 1 06/11/24 12:04 06/11/24 12:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303329 1 06/15/24 08:32 06/16/24 11:57 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-362_060724 L1744933-05 Solid Annie Matzke 06/07/24 11:33 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302667 1 06/11/24 12:04 06/11/24 12:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303334 1 06/13/24 16:20 06/13/24 23:34 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-363_060724 L1744933-06 Solid Annie Matzke 06/07/24 11:47 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302667 1 06/11/24 12:04 06/11/24 12:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 16:15 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-364_060724 L1744933-07 Solid Annie Matzke 06/07/24 12:04 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302667 1 06/11/24 12:04 06/11/24 12:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303333 1 06/17/24 12:04 06/17/24 16:17 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 3 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 3 of 24 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-365_060724 L1744933-08 Solid Annie Matzke 06/07/24 12:29 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302671 1 06/11/24 12:36 06/11/24 12:44 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303329 1 06/15/24 08:32 06/16/24 11:59 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-366_060724 L1744933-09 Solid Annie Matzke 06/07/24 12:47 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302671 1 06/11/24 12:36 06/11/24 12:44 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303329 1 06/15/24 08:32 06/16/24 12:04 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 4 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 4 of 24 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 5 of 24 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 5 of 24 SAMPLE RESULTS - 01 L1744933 SP-359_060724 Collected date/time: 06/07/24 10:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.9 1 06/11/2024 11:16 WG2302304 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.3 0.564 2.18 1 06/18/2024 16:08 WG2303328 Lead 416 0.226 0.544 1 06/18/2024 16:08 WG2303328 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 6 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 6 of 24 SAMPLE RESULTS - 02 L1744933 SP-360_060724 Collected date/time: 06/07/24 11:09 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.1 1 06/11/2024 11:16 WG2302304 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.6 0.550 2.12 1 06/18/2024 16:09 WG2303328 Lead 473 0.221 0.531 1 06/18/2024 16:09 WG2303328 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 7 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 7 of 24 SAMPLE RESULTS - 03 L1744933 SP-DUP_23 Collected date/time: 06/07/24 10:31 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.2 1 06/11/2024 11:16 WG2302304 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.8 0.550 2.12 1 06/16/2024 11:56 WG2303329 Lead 424 0.221 0.531 1 06/16/2024 11:56 WG2303329 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 8 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 8 of 24 SAMPLE RESULTS - 04 L1744933 SP-361_060724 Collected date/time: 06/07/24 11:16 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.8 1 06/11/2024 12:12 WG2302667 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.1 0.547 2.11 1 06/16/2024 11:57 WG2303329 Lead 407 0.219 0.528 1 06/16/2024 11:57 WG2303329 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 9 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 9 of 24 SAMPLE RESULTS - 05 L1744933 SP-362_060724 Collected date/time: 06/07/24 11:33 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.1 1 06/11/2024 12:12 WG2302667 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.4 0.556 2.15 1 06/13/2024 23:34 WG2303334 Lead 329 J3 J6 O1 0.223 0.537 1 06/13/2024 23:34 WG2303334 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 10 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 10 of 24 SAMPLE RESULTS - 06 L1744933 SP-363_060724 Collected date/time: 06/07/24 11:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.0 1 06/11/2024 12:12 WG2302667 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.9 0.545 2.11 1 06/17/2024 16:15 WG2303333 Lead 470 0.219 0.526 1 06/17/2024 16:15 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 11 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 11 of 24 SAMPLE RESULTS - 07 L1744933 SP-364_060724 Collected date/time: 06/07/24 12:04 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.9 1 06/11/2024 12:12 WG2302667 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.6 0.546 2.11 1 06/17/2024 16:17 WG2303333 Lead 510 0.219 0.527 1 06/17/2024 16:17 WG2303333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 12 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 12 of 24 SAMPLE RESULTS - 08 L1744933 SP-365_060724 Collected date/time: 06/07/24 12:29 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.6 1 06/11/2024 12:44 WG2302671 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.6 0.547 2.11 1 06/16/2024 11:59 WG2303329 Lead 459 0.220 0.528 1 06/16/2024 11:59 WG2303329 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 13 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 13 of 24 SAMPLE RESULTS - 09 L1744933 SP-366_060724 Collected date/time: 06/07/24 12:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.8 1 06/11/2024 12:44 WG2302671 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.2 0.541 2.09 1 06/16/2024 12:04 WG2303329 Lead 397 0.217 0.522 1 06/16/2024 12:04 WG2303329 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 14 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 14 of 24 QUALITY CONTROL SUMMARYWG2302304 Total Solids by Method 2540 G-2011 L1744933-01,02,03 Method Blank (MB) (MB) R4080462-1 06/11/24 11:16 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1744931-04 Original Sample (OS) • Duplicate (DUP) (OS) L1744931-04 06/11/24 11:16 • (DUP) R4080462-3 06/11/24 11:16 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 93.8 92.3 1 1.62 10 Laboratory Control Sample (LCS) (LCS) R4080462-2 06/11/24 11:16 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 15 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 15 of 24 QUALITY CONTROL SUMMARYWG2302667 Total Solids by Method 2540 G-2011 L1744933-04,05,06,07 Method Blank (MB) (MB) R4080500-1 06/11/24 12:12 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1744812-02 Original Sample (OS) • Duplicate (DUP) (OS) L1744812-02 06/11/24 12:12 • (DUP) R4080500-3 06/11/24 12:12 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 83.7 86.7 1 3.53 10 Laboratory Control Sample (LCS) (LCS) R4080500-2 06/11/24 12:12 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 16 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 16 of 24 QUALITY CONTROL SUMMARYWG2302671 Total Solids by Method 2540 G-2011 L1744933-08,09 Method Blank (MB) (MB) R4080511-1 06/11/24 12:44 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1744933-08 Original Sample (OS) • Duplicate (DUP) (OS) L1744933-08 06/11/24 12:44 • (DUP) R4080511-3 06/11/24 12:44 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 94.6 94.5 1 0.181 10 Laboratory Control Sample (LCS) (LCS) R4080511-2 06/11/24 12:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.1 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 17 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 17 of 24 QUALITY CONTROL SUMMARYWG2303328 Metals (ICP) by Method 6010B L1744933-01,02 Method Blank (MB) (MB) R4083460-1 06/18/24 15:56 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4083460-2 06/18/24 15:58 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 101 101 80.0-120 Lead 100 99.0 99.0 80.0-120 L1744996-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1744996-04 06/18/24 15:59 • (MS) R4083460-5 06/18/24 16:04 • (MSD) R4083460-6 06/18/24 16:06 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 3.39 99.3 99.6 95.9 96.2 1 75.0-125 0.279 20 Lead 100 19.7 106 104 85.9 84.6 1 75.0-125 1.27 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 18 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 18 of 24 QUALITY CONTROL SUMMARYWG2303329 Metals (ICP) by Method 6010B L1744933-03,04,08,09 Method Blank (MB) (MB) R4082358-1 06/16/24 11:44 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4082358-2 06/16/24 11:45 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 101 101 80.0-120 Lead 100 98.5 98.5 80.0-120 L1745149-44 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1745149-44 06/16/24 11:47 • (MS) R4082358-5 06/16/24 11:52 • (MSD) R4082358-6 06/16/24 11:54 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 110 8.52 133 122 113 103 1 75.0-125 8.31 20 Lead 110 20000 54100 21100 31000 956 1 75.0-125 E V E J3 V 88.0 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 19 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 19 of 24 QUALITY CONTROL SUMMARYWG2303333 Metals (ICP) by Method 6010B L1744933-06,07 Method Blank (MB) (MB) R4082940-1 06/17/24 15:20 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4082940-2 06/17/24 15:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 101 101 80.0-120 Lead 100 101 101 80.0-120 L1744999-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1744999-02 06/17/24 15:36 • (MS) R4082940-5 06/17/24 15:41 • (MSD) R4082940-6 06/17/24 15:43 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 109 0.710 111 108 102 98.5 1 75.0-125 3.17 20 Lead 109 2.43 111 109 100 98.2 1 75.0-125 1.98 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 20 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 20 of 24 QUALITY CONTROL SUMMARYWG2303334 Metals (ICP) by Method 6010B L1744933-05 Method Blank (MB) (MB) R4081719-1 06/13/24 23:30 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4081719-2 06/13/24 23:32 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.9 93.9 80.0-120 Lead 100 91.4 91.4 80.0-120 L1744933-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1744933-05 06/13/24 23:34 • (MS) R4081719-5 06/13/24 23:39 • (MSD) R4081719-6 06/13/24 23:41 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 107 15.4 115 111 92.6 88.7 1 75.0-125 3.70 20 Lead 107 329 462 372 124 40.5 1 75.0-125 J3 J6 21.5 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 21 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 21 of 24 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description E The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL). J3 The associated batch QC was outside the established quality control range for precision. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. O1 The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. V The sample concentration is too high to evaluate accurate spike recoveries. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 22 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 22 of 24 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/18/24 22:05 23 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744933 06/19/24 09:54 23 of 24 ANALYTICAL REPORT June 16, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1744934 Samples Received:06/08/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 16, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/16/24 15:05 1 of 10 June 17, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/17/24 13:32 1 of 10 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 DOZER-3 L1744934-01 5 Qc: Quality Control Summary 6 Total Solids by Method 2540 G-2011 6 Metals (ICP) by Method 6010B 7 Gl: Glossary of Terms 8 Al: Accreditations & Locations 9 Sc: Sample Chain of Custody 10 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/16/24 15:05 2 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/17/24 13:32 2 of 10 SAMPLE SUMMARY Collected by Collected date/time Received date/time DOZER-3 L1744934-01 Solid Annie Matzke 06/03/24 11:34 06/08/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2302671 1 06/11/24 12:36 06/11/24 12:44 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2303329 1 06/15/24 08:32 06/16/24 12:06 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/16/24 15:05 3 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/17/24 13:32 3 of 10 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/16/24 15:05 4 of 10 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/17/24 13:32 4 of 10 SAMPLE RESULTS - 01 L1744934 DOZER-3 Collected date/time: 06/03/24 11:34 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.2 1 06/11/2024 12:44 WG2302671 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.6 0.544 2.10 1 06/16/2024 12:06 WG2303329 Lead 308 0.218 0.525 1 06/16/2024 12:06 WG2303329 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/16/24 15:05 5 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/17/24 13:32 5 of 10 QUALITY CONTROL SUMMARYWG2302671 Total Solids by Method 2540 G-2011 L1744934-01 Method Blank (MB) (MB) R4080511-1 06/11/24 12:44 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1744933-08 Original Sample (OS) • Duplicate (DUP) (OS) L1744933-08 06/11/24 12:44 • (DUP) R4080511-3 06/11/24 12:44 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 94.6 94.5 1 0.181 10 Laboratory Control Sample (LCS) (LCS) R4080511-2 06/11/24 12:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.1 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/16/24 15:05 6 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/17/24 13:32 6 of 10 QUALITY CONTROL SUMMARYWG2303329 Metals (ICP) by Method 6010B L1744934-01 Method Blank (MB) (MB) R4082358-1 06/16/24 11:44 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4082358-2 06/16/24 11:45 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 101 101 80.0-120 Lead 100 98.5 98.5 80.0-120 L1745149-44 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1745149-44 06/16/24 11:47 • (MS) R4082358-5 06/16/24 11:52 • (MSD) R4082358-6 06/16/24 11:54 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 110 8.52 133 122 113 103 1 75.0-125 8.31 20 Lead 110 20000 54100 21100 31000 956 1 75.0-125 E V E J3 V 88.0 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/16/24 15:05 7 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/17/24 13:32 7 of 10 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description E The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL). J3 The associated batch QC was outside the established quality control range for precision. V The sample concentration is too high to evaluate accurate spike recoveries. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/16/24 15:05 8 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/17/24 13:32 8 of 10 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/16/24 15:05 9 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1744934 06/17/24 13:32 9 of 10 ANALYTICAL REPORT June 21, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1746578 Samples Received:06/13/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 21, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 1 of 19 June 21, 2024 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 1 of 19 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 CS-104_061024 L1746578-01 6 CS-105_061024 L1746578-02 7 CS-106_061024 L1746578-03 8 CS-107_061124 L1746578-04 9 CS-108_061124 L1746578-05 10 CS-109_061124 L1746578-06 11 CS-110_061124 L1746578-07 12 DUP-11 L1746578-08 13 Qc: Quality Control Summary 14 Total Solids by Method 2540 G-2011 14 Metals (ICP) by Method 6010B 16 Gl: Glossary of Terms 17 Al: Accreditations & Locations 18 Sc: Sample Chain of Custody 19 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 2 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 2 of 19 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-104_061024 L1746578-01 Solid Annie Matzke 06/10/24 12:30 06/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2304973 1 06/14/24 11:08 06/14/24 11:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2305359 1 06/19/24 09:11 06/20/24 22:59 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-105_061024 L1746578-02 Solid Annie Matzke 06/10/24 13:45 06/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2304973 1 06/14/24 11:08 06/14/24 11:24 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2305359 1 06/19/24 09:11 06/20/24 23:00 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-106_061024 L1746578-03 Solid Annie Matzke 06/10/24 14:55 06/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2304974 1 06/14/24 10:52 06/14/24 11:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2305359 1 06/19/24 09:11 06/20/24 23:02 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-107_061124 L1746578-04 Solid Annie Matzke 06/11/24 10:00 06/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2304974 1 06/14/24 10:52 06/14/24 11:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2305359 1 06/19/24 09:11 06/20/24 23:04 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-108_061124 L1746578-05 Solid Annie Matzke 06/11/24 11:20 06/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2304974 1 06/14/24 10:52 06/14/24 11:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2305359 1 06/19/24 09:11 06/20/24 23:05 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-109_061124 L1746578-06 Solid Annie Matzke 06/11/24 12:45 06/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2304974 1 06/14/24 10:52 06/14/24 11:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2305359 1 06/19/24 09:11 06/20/24 23:07 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-110_061124 L1746578-07 Solid Annie Matzke 06/11/24 14:00 06/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2304974 1 06/14/24 10:52 06/14/24 11:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2305359 1 06/19/24 09:11 06/20/24 23:09 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 3 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 3 of 19 SAMPLE SUMMARY Collected by Collected date/time Received date/time DUP-11 L1746578-08 Solid Annie Matzke 06/11/24 16:00 06/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2304974 1 06/14/24 10:52 06/14/24 11:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2305359 1 06/19/24 09:11 06/20/24 23:14 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 4 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 4 of 19 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 5 of 19 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 5 of 19 SAMPLE RESULTS - 01 L1746578 CS-104_061024 Collected date/time: 06/10/24 12:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.9 1 06/14/2024 11:24 WG2304973 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.7 0.551 2.13 1 06/20/2024 22:59 WG2305359 Lead 58.6 0.221 0.532 1 06/20/2024 22:59 WG2305359 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 6 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 6 of 19 SAMPLE RESULTS - 02 L1746578 CS-105_061024 Collected date/time: 06/10/24 13:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.0 1 06/14/2024 11:24 WG2304973 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.3 0.534 2.06 1 06/20/2024 23:00 WG2305359 Lead 202 0.215 0.516 1 06/20/2024 23:00 WG2305359 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 7 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 7 of 19 SAMPLE RESULTS - 03 L1746578 CS-106_061024 Collected date/time: 06/10/24 14:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.1 1 06/14/2024 11:03 WG2304974 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.3 0.528 2.04 1 06/20/2024 23:02 WG2305359 Lead 86.5 0.212 0.510 1 06/20/2024 23:02 WG2305359 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 8 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 8 of 19 SAMPLE RESULTS - 04 L1746578 CS-107_061124 Collected date/time: 06/11/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.4 1 06/14/2024 11:03 WG2304974 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.9 0.532 2.05 1 06/20/2024 23:04 WG2305359 Lead 113 0.214 0.514 1 06/20/2024 23:04 WG2305359 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 9 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 9 of 19 SAMPLE RESULTS - 05 L1746578 CS-108_061124 Collected date/time: 06/11/24 11:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.0 1 06/14/2024 11:03 WG2304974 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.63 0.529 2.04 1 06/20/2024 23:05 WG2305359 Lead 68.6 0.212 0.510 1 06/20/2024 23:05 WG2305359 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 10 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 10 of 19 SAMPLE RESULTS - 06 L1746578 CS-109_061124 Collected date/time: 06/11/24 12:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.1 1 06/14/2024 11:03 WG2304974 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.2 0.528 2.04 1 06/20/2024 23:07 WG2305359 Lead 135 0.212 0.510 1 06/20/2024 23:07 WG2305359 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 11 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 11 of 19 SAMPLE RESULTS - 07 L1746578 CS-110_061124 Collected date/time: 06/11/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.1 1 06/14/2024 11:03 WG2304974 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.5 0.528 2.04 1 06/20/2024 23:09 WG2305359 Lead 95.7 0.212 0.509 1 06/20/2024 23:09 WG2305359 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 12 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 12 of 19 SAMPLE RESULTS - 08 L1746578 DUP-11 Collected date/time: 06/11/24 16:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.9 1 06/14/2024 11:03 WG2304974 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.8 0.524 2.02 1 06/20/2024 23:14 WG2305359 Lead 122 0.210 0.506 1 06/20/2024 23:14 WG2305359 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 13 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 13 of 19 QUALITY CONTROL SUMMARYWG2304973 Total Solids by Method 2540 G-2011 L1746578-01,02 Method Blank (MB) (MB) R4082086-1 06/14/24 11:24 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1746561-10 Original Sample (OS) • Duplicate (DUP) (OS) L1746561-10 06/14/24 11:24 • (DUP) R4082086-3 06/14/24 11:24 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 66.1 63.9 1 3.46 10 Laboratory Control Sample (LCS) (LCS) R4082086-2 06/14/24 11:24 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 14 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 14 of 19 QUALITY CONTROL SUMMARYWG2304974 Total Solids by Method 2540 G-2011 L1746578-03,04,05,06,07,08 Method Blank (MB) (MB) R4082084-1 06/14/24 11:03 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1746580-01 Original Sample (OS) • Duplicate (DUP) (OS) L1746580-01 06/14/24 11:03 • (DUP) R4082084-3 06/14/24 11:03 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 93.8 94.3 1 0.533 10 Laboratory Control Sample (LCS) (LCS) R4082084-2 06/14/24 11:03 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 15 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 15 of 19 QUALITY CONTROL SUMMARYWG2305359 Metals (ICP) by Method 6010B L1746578-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R4084639-1 06/20/24 22:33 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead 0.298 J 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4084639-2 06/20/24 22:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 101 101 80.0-120 Lead 100 101 101 80.0-120 L1746583-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1746583-04 06/20/24 22:37 • (MS) R4084639-5 06/20/24 22:42 • (MSD) R4084639-6 06/20/24 22:43 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 3.04 104 98.9 101 95.9 1 75.0-125 5.38 20 Lead 100 18.9 131 124 112 105 1 75.0-125 5.61 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 16 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 16 of 19 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 17 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 17 of 19 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 10:47 18 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1746578 06/21/24 11:21 18 of 19 ANALYTICAL REPORT June 22, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1747418 Samples Received:06/15/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 22, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 1 of 12 June 24, 2024 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 1 of 12 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 CS-111_061224 L1747418-01 5 CS-112_061224 L1747418-02 6 CS-113_061324 L1747418-03 7 Qc: Quality Control Summary 8 Total Solids by Method 2540 G-2011 8 Metals (ICP) by Method 6010B 9 Gl: Glossary of Terms 10 Al: Accreditations & Locations 11 Sc: Sample Chain of Custody 12 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 2 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 2 of 12 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-111_061224 L1747418-01 Solid Annie Matzke 06/12/24 11:30 06/15/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2307767 1 06/19/24 09:00 06/19/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2306157 1 06/20/24 17:27 06/21/24 20:20 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-112_061224 L1747418-02 Solid Annie Matzke 06/12/24 15:30 06/15/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2307767 1 06/19/24 09:00 06/19/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2306157 1 06/20/24 17:27 06/21/24 20:22 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-113_061324 L1747418-03 Solid Annie Matzke 06/13/24 08:55 06/15/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2307767 1 06/19/24 09:00 06/19/24 09:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2306157 1 06/20/24 17:27 06/21/24 20:23 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 3 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 3 of 12 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 4 of 12 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 4 of 12 SAMPLE RESULTS - 01 L1747418 CS-111_061224 Collected date/time: 06/12/24 11:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.4 1 06/19/2024 09:07 WG2307767 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.9 0.537 2.08 1 06/21/2024 20:20 WG2306157 Lead 144 0.216 0.519 1 06/21/2024 20:20 WG2306157 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 5 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 5 of 12 SAMPLE RESULTS - 02 L1747418 CS-112_061224 Collected date/time: 06/12/24 15:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.9 1 06/19/2024 09:07 WG2307767 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.9 0.535 2.06 1 06/21/2024 20:22 WG2306157 Lead 127 0.215 0.516 1 06/21/2024 20:22 WG2306157 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 6 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 6 of 12 SAMPLE RESULTS - 03 L1747418 CS-113_061324 Collected date/time: 06/13/24 08:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.1 1 06/19/2024 09:07 WG2307767 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.1 0.533 2.06 1 06/21/2024 20:23 WG2306157 Lead 314 0.214 0.515 1 06/21/2024 20:23 WG2306157 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 7 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 7 of 12 QUALITY CONTROL SUMMARYWG2307767 Total Solids by Method 2540 G-2011 L1747418-01,02,03 Method Blank (MB) (MB) R4083875-1 06/19/24 09:07 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00400 L1747418-01 Original Sample (OS) • Duplicate (DUP) (OS) L1747418-01 06/19/24 09:07 • (DUP) R4083875-3 06/19/24 09:07 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 96.4 96.4 1 0.0636 10 Laboratory Control Sample (LCS) (LCS) R4083875-2 06/19/24 09:07 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 8 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 8 of 12 QUALITY CONTROL SUMMARYWG2306157 Metals (ICP) by Method 6010B L1747418-01,02,03 Method Blank (MB) (MB) R4085108-1 06/21/24 19:35 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4085108-2 06/21/24 19:37 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 90.8 90.8 80.0-120 Lead 100 90.8 90.8 80.0-120 L1747115-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1747115-02 06/21/24 19:38 • (MS) R4085108-5 06/21/24 19:44 • (MSD) R4085108-6 06/21/24 19:45 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 216 3.93 194 201 88.0 91.0 1 75.0-125 3.26 20 Lead 216 37.8 235 246 91.2 96.1 1 75.0-125 4.43 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 9 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 9 of 12 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 10 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 10 of 12 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/22/24 17:07 11 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1747418 06/24/24 11:36 11 of 12 ANALYTICAL REPORT June 24, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1748042 Samples Received:06/19/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: June 24, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 1 of 18 June 24, 2024 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 1 of 18 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 CS-114_061424 L1748042-01 5 CS-115_061424 L1748042-02 6 CS-116_061424 L1748042-03 7 CS-117_061424 L1748042-04 8 CS-118_061424 L1748042-05 9 CS-367_061724 L1748042-06 10 CS-368_061724 L1748042-07 11 Qc: Quality Control Summary 12 Total Solids by Method 2540 G-2011 12 Metals (ICP) by Method 6010B 14 Gl: Glossary of Terms 16 Al: Accreditations & Locations 17 Sc: Sample Chain of Custody 18 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 2 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 2 of 18 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-114_061424 L1748042-01 Solid 06/14/24 08:45 06/19/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2308592 1 06/20/24 09:06 06/20/24 09:13 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2308278 1 06/19/24 22:42 06/22/24 02:09 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-115_061424 L1748042-02 Solid 06/14/24 09:35 06/19/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2308592 1 06/20/24 09:06 06/20/24 09:13 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2308278 1 06/19/24 22:42 06/22/24 02:19 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-116_061424 L1748042-03 Solid 06/14/24 10:30 06/19/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2308592 1 06/20/24 09:06 06/20/24 09:13 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2308278 1 06/19/24 22:42 06/22/24 02:23 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-117_061424 L1748042-04 Solid 06/14/24 11:30 06/19/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2308592 1 06/20/24 09:06 06/20/24 09:13 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2308278 1 06/19/24 22:42 06/22/24 02:26 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-118_061424 L1748042-05 Solid 06/14/24 13:55 06/19/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2308592 1 06/20/24 09:06 06/20/24 09:13 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2308278 1 06/19/24 22:42 06/22/24 02:29 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-367_061724 L1748042-06 Solid 06/17/24 12:11 06/19/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2308593 1 06/20/24 09:14 06/20/24 09:23 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2308278 1 06/19/24 22:42 06/22/24 02:32 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-368_061724 L1748042-07 Solid 06/17/24 12:20 06/19/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2308593 1 06/20/24 09:14 06/20/24 09:23 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2308278 1 06/19/24 22:42 06/22/24 02:36 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 3 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 3 of 18 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 4 of 18 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 4 of 18 SAMPLE RESULTS - 01 L1748042 CS-114_061424 Collected date/time: 06/14/24 08:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.2 1 06/20/2024 09:13 WG2308592 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.49 0.533 2.06 1 06/22/2024 02:09 WG2308278 Lead 201 0.214 0.514 1 06/22/2024 02:09 WG2308278 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 5 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 5 of 18 SAMPLE RESULTS - 02 L1748042 CS-115_061424 Collected date/time: 06/14/24 09:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.4 1 06/20/2024 09:13 WG2308592 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.17 0.532 2.05 1 06/22/2024 02:19 WG2308278 Lead 163 0.214 0.513 1 06/22/2024 02:19 WG2308278 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 6 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 6 of 18 SAMPLE RESULTS - 03 L1748042 CS-116_061424 Collected date/time: 06/14/24 10:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.9 1 06/20/2024 09:13 WG2308592 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 4.54 0.529 2.04 1 06/22/2024 02:23 WG2308278 Lead 39.7 0.213 0.511 1 06/22/2024 02:23 WG2308278 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 7 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 7 of 18 SAMPLE RESULTS - 04 L1748042 CS-117_061424 Collected date/time: 06/14/24 11:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.5 1 06/20/2024 09:13 WG2308592 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 4.04 0.531 2.05 1 06/22/2024 02:26 WG2308278 Lead 44.9 0.213 0.513 1 06/22/2024 02:26 WG2308278 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 8 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 8 of 18 SAMPLE RESULTS - 05 L1748042 CS-118_061424 Collected date/time: 06/14/24 13:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.8 1 06/20/2024 09:13 WG2308592 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 5.44 0.530 2.04 1 06/22/2024 02:29 WG2308278 Lead 125 0.213 0.511 1 06/22/2024 02:29 WG2308278 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 9 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 9 of 18 SAMPLE RESULTS - 06 L1748042 CS-367_061724 Collected date/time: 06/17/24 12:11 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.9 1 06/20/2024 09:23 WG2308593 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.6 0.540 2.08 1 06/22/2024 02:32 WG2308278 Lead 420 0.217 0.521 1 06/22/2024 02:32 WG2308278 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 10 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 10 of 18 SAMPLE RESULTS - 07 L1748042 CS-368_061724 Collected date/time: 06/17/24 12:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.6 1 06/20/2024 09:23 WG2308593 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.7 0.536 2.07 1 06/22/2024 02:36 WG2308278 Lead 509 0.215 0.517 1 06/22/2024 02:36 WG2308278 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 11 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 11 of 18 QUALITY CONTROL SUMMARYWG2308592 Total Solids by Method 2540 G-2011 L1748042-01,02,03,04,05 Method Blank (MB) (MB) R4084478-1 06/20/24 09:13 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1748048-01 Original Sample (OS) • Duplicate (DUP) (OS) L1748048-01 06/20/24 09:13 • (DUP) R4084478-3 06/20/24 09:13 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 94.7 94.8 1 0.0615 10 Laboratory Control Sample (LCS) (LCS) R4084478-2 06/20/24 09:13 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 12 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 12 of 18 QUALITY CONTROL SUMMARYWG2308593 Total Solids by Method 2540 G-2011 L1748042-06,07 Method Blank (MB) (MB) R4084479-1 06/20/24 09:23 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1748154-10 Original Sample (OS) • Duplicate (DUP) (OS) L1748154-10 06/20/24 09:23 • (DUP) R4084479-3 06/20/24 09:23 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 84.6 84.8 1 0.227 10 Laboratory Control Sample (LCS) (LCS) R4084479-2 06/20/24 09:23 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 13 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 13 of 18 QUALITY CONTROL SUMMARYWG2308278 Metals (ICP) by Method 6010B L1748042-01,02,03,04,05,06,07 Method Blank (MB) (MB) R4085179-1 06/22/24 01:00 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Method Blank (MB) (MB) R4085274-1 06/22/24 20:50 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Laboratory Control Sample (LCS) (LCS) R4085179-2 06/22/24 01:03 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 101 101 80.0-120 Lead 100 99.5 99.5 80.0-120 Laboratory Control Sample (LCS) (LCS) R4085274-2 06/22/24 20:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.9 93.9 80.0-120 L1747996-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1747996-01 06/22/24 01:07 • (MS) R4085179-5 06/22/24 01:16 • (MSD) R4085179-6 06/22/24 01:19 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 U 98.1 102 98.1 102 1 75.0-125 4.18 20 Lead 100 9.73 106 111 96.0 101 1 75.0-125 4.48 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 14 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 14 of 18 QUALITY CONTROL SUMMARYWG2308278 Metals (ICP) by Method 6010B L1748042-01,02,03,04,05,06,07 L1747996-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1747996-01 06/22/24 20:54 • (MS) R4085274-5 06/22/24 20:59 • (MSD) R4085274-6 06/22/24 21:01 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 3.72 98.4 103 94.7 99.2 1 75.0-125 4.48 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 15 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 15 of 18 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 16 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 16 of 18 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 10:54 17 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1748042 06/24/24 11:35 17 of 18 ANALYTICAL REPORT July 01, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1749812 Samples Received:06/22/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: July 01, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 1 of 27 July 01, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 1 of 27 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 CS-19_062024 L1749812-01 6 SP-369_062024 L1749812-02 7 SP-DUP-24 L1749812-03 8 SP-370_062024 L1749812-04 9 SP-371_062024 L1749812-05 10 SP-372_062024 L1749812-06 11 SP-373_062024 L1749812-07 12 SP-374_062024 L1749812-08 13 SP-375_062024 L1749812-09 14 CS-120_061824 L1749812-10 15 CS-DUP-12 L1749812-11 16 CS-121_061824 L1749812-12 17 CS-120-SW-1_061824 L1749812-13 18 CS-121-SW-1_061824 L1749812-14 19 Qc: Quality Control Summary 20 Total Solids by Method 2540 G-2011 20 Metals (ICP) by Method 6010B 22 Gl: Glossary of Terms 24 Al: Accreditations & Locations 25 Sc: Sample Chain of Custody 26 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 2 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 2 of 27 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-19_062024 L1749812-01 Solid Annie Matzke 06/20/24 10:25 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311726 1 06/25/24 16:48 06/25/24 16:57 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313436 1 06/28/24 17:39 06/29/24 17:06 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-369_062024 L1749812-02 Solid Annie Matzke 06/20/24 13:20 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311726 1 06/25/24 16:48 06/25/24 16:57 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313436 1 06/28/24 17:39 06/29/24 17:10 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-24 L1749812-03 Solid Annie Matzke 06/20/24 13:30 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311726 1 06/25/24 16:48 06/25/24 16:57 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313436 1 06/28/24 17:39 06/29/24 17:13 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-370_062024 L1749812-04 Solid Annie Matzke 06/20/24 13:40 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311726 1 06/25/24 16:48 06/25/24 16:57 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313436 1 06/28/24 17:39 06/29/24 17:16 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-371_062024 L1749812-05 Solid Annie Matzke 06/20/24 14:59 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311726 1 06/25/24 16:48 06/25/24 16:57 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313486 1 06/29/24 16:55 07/01/24 09:24 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-372_062024 L1749812-06 Solid Annie Matzke 06/20/24 14:47 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311726 1 06/25/24 16:48 06/25/24 16:57 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313486 1 06/29/24 16:55 07/01/24 09:27 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-373_062024 L1749812-07 Solid Annie Matzke 06/20/24 14:33 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311726 1 06/25/24 16:48 06/25/24 16:57 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313486 1 06/29/24 16:55 07/01/24 09:31 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 3 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 3 of 27 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-374_062024 L1749812-08 Solid Annie Matzke 06/20/24 14:20 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311726 1 06/25/24 16:48 06/25/24 16:57 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313486 1 06/29/24 16:55 07/01/24 09:41 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-375_062024 L1749812-09 Solid Annie Matzke 06/20/24 14:08 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311726 1 06/25/24 16:48 06/25/24 16:57 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313486 1 06/29/24 16:55 07/01/24 09:44 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-120_061824 L1749812-10 Solid Annie Matzke 06/18/24 12:00 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311726 1 06/25/24 16:48 06/25/24 16:57 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313486 1 06/29/24 16:55 07/01/24 09:47 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-DUP-12 L1749812-11 Solid Annie Matzke 06/18/24 11:30 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311729 1 06/25/24 16:34 06/25/24 16:46 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313486 1 06/29/24 16:55 07/01/24 09:50 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-121_061824 L1749812-12 Solid Annie Matzke 06/18/24 18:00 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311729 1 06/25/24 16:34 06/25/24 16:46 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313486 1 06/29/24 16:55 07/01/24 09:54 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-120-SW-1_061824 L1749812-13 Solid Annie Matzke 06/18/24 12:25 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311729 1 06/25/24 16:34 06/25/24 16:46 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313486 1 06/29/24 16:55 07/01/24 09:57 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-121-SW-1_061824 L1749812-14 Solid Annie Matzke 06/18/24 18:16 06/22/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2311729 1 06/25/24 16:34 06/25/24 16:46 MT Mt. Juliet, TN Metals (ICP) by Method 6010B WG2313486 1 06/29/24 16:55 07/01/24 10:00 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 4 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 4 of 27 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 5 of 27 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 5 of 27 SAMPLE RESULTS - 01 L1749812 CS-19_062024 Collected date/time: 06/20/24 10:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.1 1 06/25/2024 16:57 WG2311726 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.8 0.539 2.08 1 06/29/2024 17:06 WG2313436 Lead 124 0.216 0.520 1 06/29/2024 17:06 WG2313436 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 6 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 6 of 27 SAMPLE RESULTS - 02 L1749812 SP-369_062024 Collected date/time: 06/20/24 13:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.8 1 06/25/2024 16:57 WG2311726 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.8 0.546 2.11 1 06/29/2024 17:10 WG2313436 Lead 380 0.219 0.527 1 06/29/2024 17:10 WG2313436 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 7 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 7 of 27 SAMPLE RESULTS - 03 L1749812 SP-DUP-24 Collected date/time: 06/20/24 13:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.7 1 06/25/2024 16:57 WG2311726 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.5 0.547 2.11 1 06/29/2024 17:13 WG2313436 Lead 341 0.220 0.528 1 06/29/2024 17:13 WG2313436 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 8 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 8 of 27 SAMPLE RESULTS - 04 L1749812 SP-370_062024 Collected date/time: 06/20/24 13:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.6 1 06/25/2024 16:57 WG2311726 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.5 0.548 2.12 1 06/29/2024 17:16 WG2313436 Lead 255 0.220 0.529 1 06/29/2024 17:16 WG2313436 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 9 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 9 of 27 SAMPLE RESULTS - 05 L1749812 SP-371_062024 Collected date/time: 06/20/24 14:59 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.6 1 06/25/2024 16:57 WG2311726 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.5 0.572 2.21 1 07/01/2024 09:24 WG2313486 Lead 221 0.230 0.552 1 07/01/2024 09:24 WG2313486 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 10 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 10 of 27 SAMPLE RESULTS - 06 L1749812 SP-372_062024 Collected date/time: 06/20/24 14:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.1 1 06/25/2024 16:57 WG2311726 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.8 0.569 2.20 1 07/01/2024 09:27 WG2313486 Lead 189 0.228 0.549 1 07/01/2024 09:27 WG2313486 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 11 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 11 of 27 SAMPLE RESULTS - 07 L1749812 SP-373_062024 Collected date/time: 06/20/24 14:33 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.5 1 06/25/2024 16:57 WG2311726 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.8 0.566 2.19 1 07/01/2024 09:31 WG2313486 Lead 218 0.227 0.546 1 07/01/2024 09:31 WG2313486 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 12 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 12 of 27 SAMPLE RESULTS - 08 L1749812 SP-374_062024 Collected date/time: 06/20/24 14:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.2 1 06/25/2024 16:57 WG2311726 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.9 0.539 2.08 1 07/01/2024 09:41 WG2313486 Lead 348 0.216 0.520 1 07/01/2024 09:41 WG2313486 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 13 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 13 of 27 SAMPLE RESULTS - 09 L1749812 SP-375_062024 Collected date/time: 06/20/24 14:08 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.0 1 06/25/2024 16:57 WG2311726 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.5 0.545 2.10 1 07/01/2024 09:44 WG2313486 Lead 311 0.219 0.526 1 07/01/2024 09:44 WG2313486 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 14 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 14 of 27 SAMPLE RESULTS - 10 L1749812 CS-120_061824 Collected date/time: 06/18/24 12:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.3 1 06/25/2024 16:57 WG2311726 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.9 0.532 2.05 1 07/01/2024 09:47 WG2313486 Lead 259 0.214 0.514 1 07/01/2024 09:47 WG2313486 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 15 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 15 of 27 SAMPLE RESULTS - 11 L1749812 CS-DUP-12 Collected date/time: 06/18/24 11:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.2 1 06/25/2024 16:46 WG2311729 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.6 0.533 2.06 1 07/01/2024 09:50 WG2313486 Lead 176 0.214 0.514 1 07/01/2024 09:50 WG2313486 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 16 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 16 of 27 SAMPLE RESULTS - 12 L1749812 CS-121_061824 Collected date/time: 06/18/24 18:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.7 1 06/25/2024 16:46 WG2311729 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.69 0.536 2.07 1 07/01/2024 09:54 WG2313486 Lead 118 0.215 0.517 1 07/01/2024 09:54 WG2313486 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 17 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 17 of 27 SAMPLE RESULTS - 13 L1749812 CS-120-SW-1_061824 Collected date/time: 06/18/24 12:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.2 1 06/25/2024 16:46 WG2311729 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 22.2 0.539 2.08 1 07/01/2024 09:57 WG2313486 Lead 593 0.216 0.520 1 07/01/2024 09:57 WG2313486 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 18 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 18 of 27 SAMPLE RESULTS - 14 L1749812 CS-121-SW-1_061824 Collected date/time: 06/18/24 18:16 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.5 1 06/25/2024 16:46 WG2311729 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 24.4 0.537 2.07 1 07/01/2024 10:00 WG2313486 Lead 658 0.215 0.518 1 07/01/2024 10:00 WG2313486 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 19 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 19 of 27 QUALITY CONTROL SUMMARYWG2311726 Total Solids by Method 2540 G-2011 L1749812-01,02,03,04,05,06,07,08,09,10 Method Blank (MB) (MB) R4086723-1 06/25/24 16:57 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1749812-07 Original Sample (OS) • Duplicate (DUP) (OS) L1749812-07 06/25/24 16:57 • (DUP) R4086723-3 06/25/24 16:57 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 91.5 91.5 1 0.0176 10 Laboratory Control Sample (LCS) (LCS) R4086723-2 06/25/24 16:57 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 20 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 20 of 27 QUALITY CONTROL SUMMARYWG2311729 Total Solids by Method 2540 G-2011 L1749812-11,12,13,14 Method Blank (MB) (MB) R4086743-1 06/25/24 16:46 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1749812-13 Original Sample (OS) • Duplicate (DUP) (OS) L1749812-13 06/25/24 16:46 • (DUP) R4086743-3 06/25/24 16:46 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 96.2 96.5 1 0.321 10 Laboratory Control Sample (LCS) (LCS) R4086743-2 06/25/24 16:46 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 21 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 21 of 27 QUALITY CONTROL SUMMARYWG2313436 Metals (ICP) by Method 6010B L1749812-01,02,03,04 Method Blank (MB) (MB) R4088324-1 06/29/24 16:13 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4088324-2 06/29/24 16:16 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.2 93.2 80.0-120 Lead 100 95.9 95.9 80.0-120 L1749768-34 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1749768-34 06/29/24 16:20 • (MS) R4088324-5 06/29/24 16:30 • (MSD) R4088324-6 06/29/24 16:33 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 8.97 104 105 94.8 95.6 1 75.0-125 0.834 20 Lead 100 7.91 104 104 96.5 96.3 1 75.0-125 0.215 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 22 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 22 of 27 QUALITY CONTROL SUMMARYWG2313486 Metals (ICP) by Method 6010B L1749812-05,06,07,08,09,10,11,12,13,14 Method Blank (MB) (MB) R4088745-1 07/01/24 09:02 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4088745-2 07/01/24 09:05 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 100 100 80.0-120 Lead 100 101 101 80.0-120 L1750877-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1750877-03 07/01/24 09:08 • (MS) R4088745-5 07/01/24 09:18 • (MSD) R4088745-6 07/01/24 09:21 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 112 3.20 101 98.3 87.3 84.9 1 75.0-125 2.64 20 Lead 112 168 285 300 104 117 1 75.0-125 5.19 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 23 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 23 of 27 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 24 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 24 of 27 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:08 25 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1749812 07/01/24 16:54 25 of 27 ANALYTICAL REPORT July 11, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1753139 Samples Received:07/03/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: July 11, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 1 of 36 July 12, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 1 of 36 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-376_070224 L1753139-01 7 SP-377_070224 L1753139-02 8 SP-378_070224 L1753139-03 9 SP-379_070224 L1753139-04 10 SP-380_070224 L1753139-05 11 SP-DUP-25 L1753139-06 12 CS-122_062824 L1753139-07 13 CS-123_062824 L1753139-08 14 CS-124_062824 L1753139-09 15 CS-125_062824 L1753139-10 16 CS-126_062824 L1753139-11 17 CS-127_062824 L1753139-12 18 CS-128_062824 L1753139-13 19 CS-129_070224 L1753139-14 20 CS-131_062424 L1753139-15 21 CS-122-SW-1_070124 L1753139-16 22 CS-123-SW-1-0-1.5_070124 L1753139-17 23 CS-123-SW-1-1.5-3_070124 L1753139-18 24 CS-124-SW-1_070124 L1753139-19 25 CS-129-SW-1_070224 L1753139-20 26 Qc: Quality Control Summary 27 Total Solids by Method 2540 G-2011 27 Metals (ICP) by Method 6010B 30 Gl: Glossary of Terms 32 Al: Accreditations & Locations 33 Sc: Sample Chain of Custody 34 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 2 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 2 of 36 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-376_070224 L1753139-01 Solid AM/DS 07/02/24 10:37 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317691 1 07/05/24 14:47 07/05/24 15:04 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317460 1 07/05/24 08:39 07/06/24 11:09 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-377_070224 L1753139-02 Solid AM/DS 07/02/24 10:49 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317691 1 07/05/24 14:47 07/05/24 15:04 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317460 1 07/05/24 08:39 07/06/24 11:11 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-378_070224 L1753139-03 Solid AM/DS 07/02/24 11:02 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317691 1 07/05/24 14:47 07/05/24 15:04 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317460 1 07/05/24 08:39 07/06/24 11:13 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-379_070224 L1753139-04 Solid AM/DS 07/02/24 11:17 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317691 1 07/05/24 14:47 07/05/24 15:04 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317460 1 07/05/24 08:39 07/06/24 11:14 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-380_070224 L1753139-05 Solid AM/DS 07/02/24 11:28 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317691 1 07/05/24 14:47 07/05/24 15:04 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:41 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-25 L1753139-06 Solid AM/DS 07/02/24 11:38 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317691 1 07/05/24 14:47 07/05/24 15:04 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:42 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-122_062824 L1753139-07 Solid AM/DS 06/28/24 15:15 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317691 1 07/05/24 14:47 07/05/24 15:04 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317460 1 07/05/24 08:39 07/06/24 11:16 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 3 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 3 of 36 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-123_062824 L1753139-08 Solid AM/DS 06/28/24 15:00 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317692 1 07/05/24 14:30 07/05/24 14:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317460 1 07/05/24 08:39 07/06/24 11:18 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-124_062824 L1753139-09 Solid AM/DS 06/28/24 10:00 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317692 1 07/05/24 14:30 07/05/24 14:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317460 1 07/05/24 08:39 07/06/24 11:23 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-125_062824 L1753139-10 Solid AM/DS 06/28/24 10:30 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317692 1 07/05/24 14:30 07/05/24 14:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317460 1 07/05/24 08:39 07/06/24 11:24 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-126_062824 L1753139-11 Solid AM/DS 06/28/24 10:45 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317692 1 07/05/24 14:30 07/05/24 14:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317460 1 07/05/24 08:39 07/06/24 10:46 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-127_062824 L1753139-12 Solid AM/DS 06/28/24 12:00 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317692 1 07/05/24 14:30 07/05/24 14:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:44 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-128_062824 L1753139-13 Solid AM/DS 06/28/24 14:30 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317692 1 07/05/24 14:30 07/05/24 14:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:46 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-129_070224 L1753139-14 Solid AM/DS 07/02/24 10:30 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317692 1 07/05/24 14:30 07/05/24 14:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:47 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 4 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 4 of 36 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-131_062424 L1753139-15 Solid AM/DS 06/24/24 11:40 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317692 1 07/05/24 14:30 07/05/24 14:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:49 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-122-SW-1_070124 L1753139-16 Solid AM/DS 07/01/24 15:05 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317692 1 07/05/24 14:30 07/05/24 14:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:51 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-123-SW-1-0-1.5_070124 L1753139-17 Solid AM/DS 07/01/24 14:00 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317692 1 07/05/24 14:30 07/05/24 14:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:02 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-123-SW-1-1.5-3_070124 L1753139-18 Solid AM/DS 07/01/24 14:30 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317694 1 07/05/24 12:31 07/05/24 12:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:04 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-124-SW-1_070124 L1753139-19 Solid AM/DS 07/01/24 13:00 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317694 1 07/05/24 12:31 07/05/24 12:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:06 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-129-SW-1_070224 L1753139-20 Solid AM/DS 07/02/24 11:00 07/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2317694 1 07/05/24 12:31 07/05/24 12:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2317545 1 07/10/24 22:02 07/11/24 10:07 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 5 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 5 of 36 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 6 of 36 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 6 of 36 SAMPLE RESULTS - 01 L1753139 SP-376_070224 Collected date/time: 07/02/24 10:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.7 1 07/05/2024 15:04 WG2317691 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.8 0.536 2.07 1 07/06/2024 11:09 WG2317460 Lead 407 0.215 0.517 1 07/06/2024 11:09 WG2317460 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 7 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 7 of 36 SAMPLE RESULTS - 02 L1753139 SP-377_070224 Collected date/time: 07/02/24 10:49 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.4 1 07/05/2024 15:04 WG2317691 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.9 0.543 2.10 1 07/06/2024 11:11 WG2317460 Lead 194 0.218 0.524 1 07/06/2024 11:11 WG2317460 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 8 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 8 of 36 SAMPLE RESULTS - 03 L1753139 SP-378_070224 Collected date/time: 07/02/24 11:02 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.6 1 07/05/2024 15:04 WG2317691 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.5 0.542 2.09 1 07/06/2024 11:13 WG2317460 Lead 154 0.217 0.523 1 07/06/2024 11:13 WG2317460 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 9 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 9 of 36 SAMPLE RESULTS - 04 L1753139 SP-379_070224 Collected date/time: 07/02/24 11:17 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.4 1 07/05/2024 15:04 WG2317691 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 29.9 0.537 2.07 1 07/06/2024 11:14 WG2317460 Lead 993 0.216 0.518 1 07/06/2024 11:14 WG2317460 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 10 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 10 of 36 SAMPLE RESULTS - 05 L1753139 SP-380_070224 Collected date/time: 07/02/24 11:28 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.9 1 07/05/2024 15:04 WG2317691 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 22.0 0.534 2.06 1 07/11/2024 10:41 WG2317545 Lead 659 0.215 0.516 1 07/11/2024 10:41 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 11 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 11 of 36 SAMPLE RESULTS - 06 L1753139 SP-DUP-25 Collected date/time: 07/02/24 11:38 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.9 1 07/05/2024 15:04 WG2317691 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.9 0.535 2.06 1 07/11/2024 10:42 WG2317545 Lead 722 0.215 0.516 1 07/11/2024 10:42 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 12 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 12 of 36 SAMPLE RESULTS - 07 L1753139 CS-122_062824 Collected date/time: 06/28/24 15:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.0 1 07/05/2024 15:04 WG2317691 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.1 0.551 2.13 1 07/06/2024 11:16 WG2317460 Lead 72.9 0.221 0.532 1 07/06/2024 11:16 WG2317460 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 13 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 13 of 36 SAMPLE RESULTS - 08 L1753139 CS-123_062824 Collected date/time: 06/28/24 15:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.1 1 07/05/2024 14:44 WG2317692 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.2 0.534 2.06 1 07/06/2024 11:18 WG2317460 Lead 164 0.214 0.515 1 07/06/2024 11:18 WG2317460 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 14 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 14 of 36 SAMPLE RESULTS - 09 L1753139 CS-124_062824 Collected date/time: 06/28/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.8 1 07/05/2024 14:44 WG2317692 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.6 0.547 2.11 1 07/06/2024 11:23 WG2317460 Lead 108 0.220 0.528 1 07/06/2024 11:23 WG2317460 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 15 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 15 of 36 SAMPLE RESULTS - 10 L1753139 CS-125_062824 Collected date/time: 06/28/24 10:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.5 1 07/05/2024 14:44 WG2317692 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.2 0.526 2.03 1 07/06/2024 11:24 WG2317460 Lead 177 0.211 0.507 1 07/06/2024 11:24 WG2317460 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 16 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 16 of 36 SAMPLE RESULTS - 11 L1753139 CS-126_062824 Collected date/time: 06/28/24 10:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.3 1 07/05/2024 14:44 WG2317692 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.4 0.527 2.03 1 07/06/2024 10:46 WG2317460 Lead 219 J6 0.212 0.508 1 07/06/2024 10:46 WG2317460 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 17 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 17 of 36 SAMPLE RESULTS - 12 L1753139 CS-127_062824 Collected date/time: 06/28/24 12:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.3 1 07/05/2024 14:44 WG2317692 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.3 0.527 2.03 1 07/11/2024 10:44 WG2317545 Lead 106 0.212 0.509 1 07/11/2024 10:44 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 18 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 18 of 36 SAMPLE RESULTS - 13 L1753139 CS-128_062824 Collected date/time: 06/28/24 14:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.2 1 07/05/2024 14:44 WG2317692 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.8 0.527 2.04 1 07/11/2024 10:46 WG2317545 Lead 140 0.212 0.509 1 07/11/2024 10:46 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 19 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 19 of 36 SAMPLE RESULTS - 14 L1753139 CS-129_070224 Collected date/time: 07/02/24 10:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.2 1 07/05/2024 14:44 WG2317692 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.4 0.527 2.04 1 07/11/2024 10:47 WG2317545 Lead 104 0.212 0.509 1 07/11/2024 10:47 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 20 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 20 of 36 SAMPLE RESULTS - 15 L1753139 CS-131_062424 Collected date/time: 06/24/24 11:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.0 1 07/05/2024 14:44 WG2317692 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 6.48 0.575 2.22 1 07/11/2024 10:49 WG2317545 Lead 37.3 0.231 0.555 1 07/11/2024 10:49 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 21 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 21 of 36 SAMPLE RESULTS - 16 L1753139 CS-122-SW-1_070124 Collected date/time: 07/01/24 15:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.7 1 07/05/2024 14:44 WG2317692 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 27.3 0.536 2.07 1 07/11/2024 10:51 WG2317545 Lead 767 0.215 0.517 1 07/11/2024 10:51 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 22 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 22 of 36 SAMPLE RESULTS - 17 L1753139 CS-123-SW-1-0-1.5_070124 Collected date/time: 07/01/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.4 1 07/05/2024 14:44 WG2317692 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 31.8 0.537 2.07 1 07/11/2024 10:02 WG2317545 Lead 968 0.216 0.518 1 07/11/2024 10:02 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 23 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 23 of 36 SAMPLE RESULTS - 18 L1753139 CS-123-SW-1-1.5-3_070124 Collected date/time: 07/01/24 14:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.6 1 07/05/2024 12:44 WG2317694 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.9 0.548 2.11 1 07/11/2024 10:04 WG2317545 Lead 310 0.220 0.529 1 07/11/2024 10:04 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 24 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 24 of 36 SAMPLE RESULTS - 19 L1753139 CS-124-SW-1_070124 Collected date/time: 07/01/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.1 1 07/05/2024 12:44 WG2317694 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 30.2 0.534 2.06 1 07/11/2024 10:06 WG2317545 Lead 947 0.214 0.515 1 07/11/2024 10:06 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 25 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 25 of 36 SAMPLE RESULTS - 20 L1753139 CS-129-SW-1_070224 Collected date/time: 07/02/24 11:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.2 1 07/05/2024 12:44 WG2317694 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 35.3 0.533 2.06 1 07/11/2024 10:07 WG2317545 Lead 1360 0.214 0.514 1 07/11/2024 10:07 WG2317545 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 26 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 26 of 36 QUALITY CONTROL SUMMARYWG2317691 Total Solids by Method 2540 G-2011 L1753139-01,02,03,04,05,06,07 Method Blank (MB) (MB) R4090669-1 07/05/24 15:04 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1753052-05 Original Sample (OS) • Duplicate (DUP) (OS) L1753052-05 07/05/24 15:04 • (DUP) R4090669-3 07/05/24 15:04 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 85.0 85.9 1 1.05 10 Laboratory Control Sample (LCS) (LCS) R4090669-2 07/05/24 15:04 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 27 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 27 of 36 QUALITY CONTROL SUMMARYWG2317692 Total Solids by Method 2540 G-2011 L1753139-08,09,10,11,12,13,14,15,16,17 Method Blank (MB) (MB) R4090667-1 07/05/24 14:44 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1753139-11 Original Sample (OS) • Duplicate (DUP) (OS) L1753139-11 07/05/24 14:44 • (DUP) R4090667-3 07/05/24 14:44 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 98.3 98.2 1 0.146 10 Laboratory Control Sample (LCS) (LCS) R4090667-2 07/05/24 14:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 28 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 28 of 36 QUALITY CONTROL SUMMARYWG2317694 Total Solids by Method 2540 G-2011 L1753139-18,19,20 Method Blank (MB) (MB) R4090664-1 07/05/24 12:44 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1753167-02 Original Sample (OS) • Duplicate (DUP) (OS) L1753167-02 07/05/24 12:44 • (DUP) R4090664-3 07/05/24 12:44 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 85.2 85.9 1 0.854 10 Laboratory Control Sample (LCS) (LCS) R4090664-2 07/05/24 12:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 29 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 29 of 36 QUALITY CONTROL SUMMARYWG2317460 Metals (ICP) by Method 6010B L1753139-01,02,03,04,07,08,09,10,11 Method Blank (MB) (MB) R4090716-1 07/06/24 10:43 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4090716-2 07/06/24 10:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 104 104 80.0-120 Lead 100 103 103 80.0-120 L1753139-11 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1753139-11 07/06/24 10:46 • (MS) R4090716-5 07/06/24 10:51 • (MSD) R4090716-6 07/06/24 10:53 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 102 14.4 102 108 85.8 91.8 1 75.0-125 5.84 20 Lead 102 219 288 295 68.2 74.8 1 75.0-125 J6 J6 2.30 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 30 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 30 of 36 QUALITY CONTROL SUMMARYWG2317545 Metals (ICP) by Method 6010B L1753139-05,06,12,13,14,15,16,17,18,19,20 Method Blank (MB) (MB) R4092659-1 07/11/24 10:16 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4092659-2 07/11/24 10:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 96.5 96.5 80.0-120 Lead 100 97.4 97.4 80.0-120 L1752103-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1752103-02 07/11/24 10:19 • (MS) R4092659-5 07/11/24 10:24 • (MSD) R4092659-6 07/11/24 10:26 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 103 8.95 110 101 98.8 89.4 1 75.0-125 9.10 20 Lead 103 18.2 131 113 110 92.4 1 75.0-125 14.7 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 31 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 31 of 36 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 32 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 32 of 36 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/11/24 15:33 33 of 36 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753139 07/12/24 09:19 33 of 36 ANALYTICAL REPORT July 11, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1753879 Samples Received:07/06/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: July 11, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 1 of 30 July 12, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 1 of 30 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-381_070224 L1753879-01 7 SP-382_070224 L1753879-02 8 SP-383_070224 L1753879-03 9 SP-384_070224 L1753879-04 10 SP-385_070224 L1753879-05 11 SP-386_070224 L1753879-06 12 SP-387_070224 L1753879-07 13 SP-388_070224 L1753879-08 14 SP-389_070224 L1753879-09 15 SP-390_070224 L1753879-10 16 SP-DUP-26 L1753879-11 17 SP-391_070224 L1753879-12 18 SP-392_070224 L1753879-13 19 SP-393_070224 L1753879-14 20 SP-394_070224 L1753879-15 21 SP-395_070224 L1753879-16 22 Qc: Quality Control Summary 23 Total Solids by Method 2540 G-2011 23 Metals (ICP) by Method 6010B 25 Gl: Glossary of Terms 27 Al: Accreditations & Locations 28 Sc: Sample Chain of Custody 29 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 2 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 2 of 30 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-381_070224 L1753879-01 Solid AM/DS 07/02/24 15:45 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318834 1 07/08/24 15:46 07/08/24 15:51 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318701 1 07/10/24 14:46 07/11/24 11:12 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-382_070224 L1753879-02 Solid AM/DS 07/02/24 15:57 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318834 1 07/08/24 15:46 07/08/24 15:51 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318701 1 07/10/24 14:46 07/11/24 11:14 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-383_070224 L1753879-03 Solid AM/DS 07/02/24 16:07 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318834 1 07/08/24 15:46 07/08/24 15:51 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318701 1 07/10/24 14:46 07/11/24 11:16 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-384_070224 L1753879-04 Solid AM/DS 07/03/24 11:15 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318834 1 07/08/24 15:46 07/08/24 15:51 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 18:26 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-385_070224 L1753879-05 Solid AM/DS 07/03/24 11:31 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318834 1 07/08/24 15:46 07/08/24 15:51 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 18:45 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-386_070224 L1753879-06 Solid AM/DS 07/03/24 11:44 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318834 1 07/08/24 15:46 07/08/24 15:51 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 18:46 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-387_070224 L1753879-07 Solid AM/DS 07/03/24 11:56 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318834 1 07/08/24 15:46 07/08/24 15:51 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 18:48 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 3 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 3 of 30 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-388_070224 L1753879-08 Solid AM/DS 07/03/24 12:15 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318834 1 07/08/24 15:46 07/08/24 15:51 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 18:50 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-389_070224 L1753879-09 Solid AM/DS 07/03/24 12:32 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318835 1 07/08/24 16:47 07/08/24 16:52 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 18:52 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-390_070224 L1753879-10 Solid AM/DS 07/03/24 15:12 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318835 1 07/08/24 16:47 07/08/24 16:52 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 18:53 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-26 L1753879-11 Solid AM/DS 07/03/24 15:05 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318835 1 07/08/24 16:47 07/08/24 16:52 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 18:55 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-391_070224 L1753879-12 Solid AM/DS 07/03/24 15:27 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318835 1 07/08/24 16:47 07/08/24 16:52 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 18:57 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-392_070224 L1753879-13 Solid AM/DS 07/03/24 15:42 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318835 1 07/08/24 16:47 07/08/24 16:52 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 18:58 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-393_070224 L1753879-14 Solid AM/DS 07/03/24 15:59 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318835 1 07/08/24 16:47 07/08/24 16:52 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 19:04 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 4 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 4 of 30 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-394_070224 L1753879-15 Solid AM/DS 07/03/24 16:08 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318835 1 07/08/24 16:47 07/08/24 16:52 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 19:05 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-395_070224 L1753879-16 Solid AM/DS 07/03/24 16:27 07/06/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2318835 1 07/08/24 16:47 07/08/24 16:52 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2318709 1 07/09/24 08:57 07/09/24 19:07 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 5 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 5 of 30 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 6 of 30 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 6 of 30 SAMPLE RESULTS - 01 L1753879 SP-381_070224 Collected date/time: 07/02/24 15:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.9 1 07/08/2024 15:51 WG2318834 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.1 0.546 2.11 1 07/11/2024 11:12 WG2318701 Lead 193 0.219 0.527 1 07/11/2024 11:12 WG2318701 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 7 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 7 of 30 SAMPLE RESULTS - 02 L1753879 SP-382_070224 Collected date/time: 07/02/24 15:57 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.7 1 07/08/2024 15:51 WG2318834 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.7 0.547 2.11 1 07/11/2024 11:14 WG2318701 Lead 225 0.220 0.528 1 07/11/2024 11:14 WG2318701 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 8 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 8 of 30 SAMPLE RESULTS - 03 L1753879 SP-383_070224 Collected date/time: 07/02/24 16:07 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.9 1 07/08/2024 15:51 WG2318834 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.8 0.535 2.06 1 07/11/2024 11:16 WG2318701 Lead 463 0.215 0.516 1 07/11/2024 11:16 WG2318701 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 9 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 9 of 30 SAMPLE RESULTS - 04 L1753879 SP-384_070224 Collected date/time: 07/03/24 11:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.6 1 07/08/2024 15:51 WG2318834 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 23.5 0.536 2.07 1 07/09/2024 18:26 WG2318709 Lead 693 V 0.215 0.518 1 07/09/2024 18:26 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 10 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 10 of 30 SAMPLE RESULTS - 05 L1753879 SP-385_070224 Collected date/time: 07/03/24 11:31 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.6 1 07/08/2024 15:51 WG2318834 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 22.4 0.530 2.05 1 07/09/2024 18:45 WG2318709 Lead 579 0.213 0.512 1 07/09/2024 18:45 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 11 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 11 of 30 SAMPLE RESULTS - 06 L1753879 SP-386_070224 Collected date/time: 07/03/24 11:44 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.1 1 07/08/2024 15:51 WG2318834 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 26.6 0.534 2.06 1 07/09/2024 18:46 WG2318709 Lead 956 0.214 0.515 1 07/09/2024 18:46 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 12 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 12 of 30 SAMPLE RESULTS - 07 L1753879 SP-387_070224 Collected date/time: 07/03/24 11:56 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.6 1 07/08/2024 15:51 WG2318834 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 24.6 0.542 2.09 1 07/09/2024 18:48 WG2318709 Lead 897 0.218 0.523 1 07/09/2024 18:48 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 13 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 13 of 30 SAMPLE RESULTS - 08 L1753879 SP-388_070224 Collected date/time: 07/03/24 12:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.5 1 07/08/2024 15:51 WG2318834 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 22.1 0.537 2.07 1 07/09/2024 18:50 WG2318709 Lead 430 0.215 0.518 1 07/09/2024 18:50 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 14 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 14 of 30 SAMPLE RESULTS - 09 L1753879 SP-389_070224 Collected date/time: 07/03/24 12:32 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.8 1 07/08/2024 16:52 WG2318835 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 24.6 0.541 2.09 1 07/09/2024 18:52 WG2318709 Lead 950 0.217 0.522 1 07/09/2024 18:52 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 15 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 15 of 30 SAMPLE RESULTS - 10 L1753879 SP-390_070224 Collected date/time: 07/03/24 15:12 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.7 1 07/08/2024 16:52 WG2318835 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.2 0.536 2.07 1 07/09/2024 18:53 WG2318709 Lead 396 0.215 0.517 1 07/09/2024 18:53 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 16 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 16 of 30 SAMPLE RESULTS - 11 L1753879 SP-DUP-26 Collected date/time: 07/03/24 15:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.7 1 07/08/2024 16:52 WG2318835 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.5 0.536 2.07 1 07/09/2024 18:55 WG2318709 Lead 380 0.215 0.517 1 07/09/2024 18:55 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 17 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 17 of 30 SAMPLE RESULTS - 12 L1753879 SP-391_070224 Collected date/time: 07/03/24 15:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.9 1 07/08/2024 16:52 WG2318835 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.0 0.529 2.04 1 07/09/2024 18:57 WG2318709 Lead 450 0.212 0.511 1 07/09/2024 18:57 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 18 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 18 of 30 SAMPLE RESULTS - 13 L1753879 SP-392_070224 Collected date/time: 07/03/24 15:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.3 1 07/08/2024 16:52 WG2318835 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.7 0.527 2.03 1 07/09/2024 18:58 WG2318709 Lead 421 0.212 0.509 1 07/09/2024 18:58 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 19 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 19 of 30 SAMPLE RESULTS - 14 L1753879 SP-393_070224 Collected date/time: 07/03/24 15:59 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.4 1 07/08/2024 16:52 WG2318835 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.7 0.532 2.05 1 07/09/2024 19:04 WG2318709 Lead 512 0.214 0.513 1 07/09/2024 19:04 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 20 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 20 of 30 SAMPLE RESULTS - 15 L1753879 SP-394_070224 Collected date/time: 07/03/24 16:08 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.0 1 07/08/2024 16:52 WG2318835 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.3 0.529 2.04 1 07/09/2024 19:05 WG2318709 Lead 444 0.212 0.510 1 07/09/2024 19:05 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 21 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 21 of 30 SAMPLE RESULTS - 16 L1753879 SP-395_070224 Collected date/time: 07/03/24 16:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.3 1 07/08/2024 16:52 WG2318835 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.8 0.532 2.05 1 07/09/2024 19:07 WG2318709 Lead 488 0.214 0.514 1 07/09/2024 19:07 WG2318709 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 22 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 22 of 30 QUALITY CONTROL SUMMARYWG2318834 Total Solids by Method 2540 G-2011 L1753879-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R4091399-1 07/08/24 15:51 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1753879-05 Original Sample (OS) • Duplicate (DUP) (OS) L1753879-05 07/08/24 15:51 • (DUP) R4091399-3 07/08/24 15:51 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 97.6 97.6 1 0.0523 10 Laboratory Control Sample (LCS) (LCS) R4091399-2 07/08/24 15:51 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 23 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 23 of 30 QUALITY CONTROL SUMMARYWG2318835 Total Solids by Method 2540 G-2011 L1753879-09,10,11,12,13,14,15,16 Method Blank (MB) (MB) R4091436-1 07/08/24 16:52 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1753879-16 Original Sample (OS) • Duplicate (DUP) (OS) L1753879-16 07/08/24 16:52 • (DUP) R4091436-3 07/08/24 16:52 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 97.3 97.4 1 0.117 10 Laboratory Control Sample (LCS) (LCS) R4091436-2 07/08/24 16:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 24 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 24 of 30 QUALITY CONTROL SUMMARYWG2318701 Metals (ICP) by Method 6010B L1753879-01,02,03 Method Blank (MB) (MB) R4092599-1 07/11/24 10:32 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4092599-2 07/11/24 10:34 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 109 109 80.0-120 Lead 100 109 109 80.0-120 L1753884-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1753884-02 07/11/24 10:36 • (MS) R4092599-5 07/11/24 10:41 • (MSD) R4092599-6 07/11/24 10:42 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 117 8.46 120 120 95.1 95.0 1 75.0-125 0.133 20 Lead 117 165 331 291 142 108 1 75.0-125 J5 12.8 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 25 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 25 of 30 QUALITY CONTROL SUMMARYWG2318709 Metals (ICP) by Method 6010B L1753879-04,05,06,07,08,09,10,11,12,13,14,15,16 Method Blank (MB) (MB) R4091749-1 07/09/24 18:22 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4091749-2 07/09/24 18:24 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.0 93.0 80.0-120 Lead 100 92.2 92.2 80.0-120 L1753879-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1753879-04 07/09/24 18:26 • (MS) R4091749-5 07/09/24 18:31 • (MSD) R4091749-6 07/09/24 18:33 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 104 23.5 117 119 90.4 92.2 1 75.0-125 1.55 20 Lead 104 693 728 880 33.9 181 1 75.0-125 V V 19.0 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 26 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 26 of 30 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. V The sample concentration is too high to evaluate accurate spike recoveries. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 27 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 27 of 30 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/11/24 14:50 28 of 30 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1753879 07/12/24 09:20 28 of 30 ANALYTICAL REPORT August 06, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1756558 Samples Received:07/13/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: August 06, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 1 of 33 August 06, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 1 of 33 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 CS-130_071224 L1756558-01 7 CS-132_071224 L1756558-02 8 CS-133_071224 L1756558-03 9 CS-134_071224 L1756558-04 10 CS-135_071124 L1756558-05 11 CS-136_070824 L1756558-06 12 CS-137_071224 L1756558-07 13 CS-138_070924 L1756558-08 14 CS-139_071124 L1756558-09 15 CS-140_071224 L1756558-10 16 SP-406_071124 L1756558-11 17 SP-407_071124 L1756558-12 18 SP-408_071124 L1756558-13 19 SP-409_071224 L1756558-14 20 SP-410_071224 L1756558-15 21 SP-411_071224 L1756558-16 22 SP-DUP-27 L1756558-17 23 SP-DUP-28 L1756558-18 24 Qc: Quality Control Summary 25 Total Solids by Method 2540 G-2011 25 Metals (ICP) by Method 6010B 27 Gl: Glossary of Terms 30 Al: Accreditations & Locations 31 Sc: Sample Chain of Custody 32 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 2 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 2 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-130_071224 L1756558-01 Solid Annie Matzke 07/12/24 10:30 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324474 1 07/17/24 09:58 07/17/24 10:11 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324931 1 07/17/24 17:19 07/18/24 14:09 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-132_071224 L1756558-02 Solid Annie Matzke 07/12/24 10:45 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324474 1 07/17/24 09:58 07/17/24 10:11 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324931 1 07/17/24 17:19 07/18/24 14:12 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-133_071224 L1756558-03 Solid Annie Matzke 07/12/24 13:40 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324474 1 07/17/24 09:58 07/17/24 10:11 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324931 1 07/17/24 17:19 07/18/24 14:15 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-134_071224 L1756558-04 Solid Annie Matzke 07/12/24 11:00 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324474 1 07/17/24 09:58 07/17/24 10:11 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324931 1 07/17/24 17:19 07/18/24 14:23 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-135_071124 L1756558-05 Solid Annie Matzke 07/11/24 10:00 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324474 1 07/17/24 09:58 07/17/24 10:11 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324931 1 07/17/24 17:19 07/18/24 14:26 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-136_070824 L1756558-06 Solid Annie Matzke 07/08/24 14:30 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324474 1 07/17/24 09:58 07/17/24 10:11 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324931 1 07/17/24 17:19 07/18/24 14:29 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-137_071224 L1756558-07 Solid Annie Matzke 07/12/24 13:15 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324474 1 07/17/24 09:58 07/17/24 10:11 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324931 1 07/17/24 17:19 07/18/24 14:32 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 3 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 3 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-138_070924 L1756558-08 Solid Annie Matzke 07/09/24 09:11 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324474 1 07/17/24 09:58 07/17/24 10:11 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324931 1 07/17/24 17:19 07/18/24 14:35 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-139_071124 L1756558-09 Solid Annie Matzke 07/11/24 10:35 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324474 1 07/17/24 09:58 07/17/24 10:11 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324931 1 07/17/24 17:19 07/18/24 14:38 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-140_071224 L1756558-10 Solid Annie Matzke 07/12/24 12:45 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324474 1 07/17/24 09:58 07/17/24 10:11 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324918 1 07/18/24 08:51 07/19/24 17:23 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-406_071124 L1756558-11 Solid Annie Matzke 07/11/24 14:30 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324475 1 07/17/24 09:43 07/17/24 09:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324918 1 07/18/24 08:51 07/19/24 17:32 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-407_071124 L1756558-12 Solid Annie Matzke 07/11/24 14:42 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324475 1 07/17/24 09:43 07/17/24 09:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324918 1 07/18/24 08:51 07/19/24 17:33 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-408_071124 L1756558-13 Solid Annie Matzke 07/11/24 14:54 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324475 1 07/17/24 09:43 07/17/24 09:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324918 1 07/18/24 08:51 07/19/24 17:35 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-409_071224 L1756558-14 Solid Annie Matzke 07/12/24 11:57 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324475 1 07/17/24 09:43 07/17/24 09:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324918 1 07/18/24 08:51 07/19/24 17:40 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 4 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 4 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-410_071224 L1756558-15 Solid Annie Matzke 07/12/24 12:10 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324475 1 07/17/24 09:43 07/17/24 09:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324918 1 07/18/24 08:51 07/19/24 17:42 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-411_071224 L1756558-16 Solid Annie Matzke 07/12/24 12:22 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324475 1 07/17/24 09:43 07/17/24 09:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324918 1 07/18/24 08:51 07/19/24 17:44 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-27 L1756558-17 Solid Annie Matzke 07/09/24 14:52 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324475 1 07/17/24 09:43 07/17/24 09:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324918 1 07/18/24 08:51 07/19/24 17:45 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-28 L1756558-18 Solid Annie Matzke 07/12/24 12:15 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324475 1 07/17/24 09:43 07/17/24 09:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 15:49 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 5 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 5 of 33 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 6 of 33 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 6 of 33 SAMPLE RESULTS - 01 L1756558 CS-130_071224 Collected date/time: 07/12/24 10:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.9 1 07/17/2024 10:11 WG2324474 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.8 0.535 2.06 1 07/18/2024 14:09 WG2324931 Lead 168 0.215 0.516 1 07/18/2024 14:09 WG2324931 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 7 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 7 of 33 SAMPLE RESULTS - 02 L1756558 CS-132_071224 Collected date/time: 07/12/24 10:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.5 1 07/17/2024 10:11 WG2324474 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.27 0.526 2.03 1 07/18/2024 14:12 WG2324931 Lead 83.2 0.211 0.508 1 07/18/2024 14:12 WG2324931 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 8 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 8 of 33 SAMPLE RESULTS - 03 L1756558 CS-133_071224 Collected date/time: 07/12/24 13:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.5 1 07/17/2024 10:11 WG2324474 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.1 0.531 2.05 1 07/18/2024 14:15 WG2324931 Lead 130 0.213 0.513 1 07/18/2024 14:15 WG2324931 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 9 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 9 of 33 SAMPLE RESULTS - 04 L1756558 CS-134_071224 Collected date/time: 07/12/24 11:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.7 1 07/17/2024 10:11 WG2324474 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.32 0.530 2.05 1 07/18/2024 14:23 WG2324931 Lead 54.5 0.213 0.512 1 07/18/2024 14:23 WG2324931 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 10 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 10 of 33 SAMPLE RESULTS - 05 L1756558 CS-135_071124 Collected date/time: 07/11/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.2 1 07/17/2024 10:11 WG2324474 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.6 0.533 2.06 1 07/18/2024 14:26 WG2324931 Lead 119 0.214 0.515 1 07/18/2024 14:26 WG2324931 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 11 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 11 of 33 SAMPLE RESULTS - 06 L1756558 CS-136_070824 Collected date/time: 07/08/24 14:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.4 1 07/17/2024 10:11 WG2324474 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.75 0.527 2.03 1 07/18/2024 14:29 WG2324931 Lead 114 0.211 0.508 1 07/18/2024 14:29 WG2324931 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 12 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 12 of 33 SAMPLE RESULTS - 07 L1756558 CS-137_071224 Collected date/time: 07/12/24 13:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.9 1 07/17/2024 10:11 WG2324474 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.3 0.535 2.07 1 07/18/2024 14:32 WG2324931 Lead 244 0.215 0.516 1 07/18/2024 14:32 WG2324931 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 13 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 13 of 33 SAMPLE RESULTS - 08 L1756558 CS-138_070924 Collected date/time: 07/09/24 09:11 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.7 1 07/17/2024 10:11 WG2324474 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.2 0.530 2.05 1 07/18/2024 14:35 WG2324931 Lead 133 0.213 0.512 1 07/18/2024 14:35 WG2324931 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 14 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 14 of 33 SAMPLE RESULTS - 09 L1756558 CS-139_071124 Collected date/time: 07/11/24 10:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.6 1 07/17/2024 10:11 WG2324474 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.49 0.542 2.09 1 07/18/2024 14:38 WG2324931 Lead 50.4 0.218 0.523 1 07/18/2024 14:38 WG2324931 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 15 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 15 of 33 SAMPLE RESULTS - 10 L1756558 CS-140_071224 Collected date/time: 07/12/24 12:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.3 1 07/17/2024 10:11 WG2324474 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.51 J6 0.532 2.06 1 07/19/2024 17:23 WG2324918 Lead 80.6 J6 0.214 0.514 1 07/19/2024 17:23 WG2324918 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 16 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 16 of 33 SAMPLE RESULTS - 11 L1756558 SP-406_071124 Collected date/time: 07/11/24 14:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.7 1 07/17/2024 09:56 WG2324475 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.88 0.530 2.05 1 07/19/2024 17:32 WG2324918 Lead 90.2 0.213 0.512 1 07/19/2024 17:32 WG2324918 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 17 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 17 of 33 SAMPLE RESULTS - 12 L1756558 SP-407_071124 Collected date/time: 07/11/24 14:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.6 1 07/17/2024 09:56 WG2324475 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.26 0.531 2.05 1 07/19/2024 17:33 WG2324918 Lead 113 0.213 0.512 1 07/19/2024 17:33 WG2324918 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 18 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 18 of 33 SAMPLE RESULTS - 13 L1756558 SP-408_071124 Collected date/time: 07/11/24 14:54 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.2 1 07/17/2024 09:56 WG2324475 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.20 0.533 2.06 1 07/19/2024 17:35 WG2324918 Lead 136 0.214 0.515 1 07/19/2024 17:35 WG2324918 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 19 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 19 of 33 SAMPLE RESULTS - 14 L1756558 SP-409_071224 Collected date/time: 07/12/24 11:57 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.5 1 07/17/2024 09:56 WG2324475 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.5 0.531 2.05 1 07/19/2024 17:40 WG2324918 Lead 156 0.213 0.513 1 07/19/2024 17:40 WG2324918 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 20 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 20 of 33 SAMPLE RESULTS - 15 L1756558 SP-410_071224 Collected date/time: 07/12/24 12:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.5 1 07/17/2024 09:56 WG2324475 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.52 0.531 2.05 1 07/19/2024 17:42 WG2324918 Lead 83.4 0.213 0.513 1 07/19/2024 17:42 WG2324918 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 21 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 21 of 33 SAMPLE RESULTS - 16 L1756558 SP-411_071224 Collected date/time: 07/12/24 12:22 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.7 1 07/17/2024 09:56 WG2324475 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.1 0.536 2.07 1 07/19/2024 17:44 WG2324918 Lead 93.1 0.215 0.517 1 07/19/2024 17:44 WG2324918 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 22 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 22 of 33 SAMPLE RESULTS - 17 L1756558 SP-DUP-27 Collected date/time: 07/09/24 14:52 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.5 1 07/17/2024 09:56 WG2324475 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.0 0.537 2.07 1 07/19/2024 17:45 WG2324918 Lead 131 0.216 0.518 1 07/19/2024 17:45 WG2324918 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 23 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 23 of 33 SAMPLE RESULTS - 18 L1756558 SP-DUP-28 Collected date/time: 07/12/24 12:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.5 1 07/17/2024 09:56 WG2324475 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.7 0.531 2.05 1 07/19/2024 15:49 WG2324902 Lead 122 0.213 0.513 1 07/19/2024 15:49 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 24 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 24 of 33 QUALITY CONTROL SUMMARYWG2324474 Total Solids by Method 2540 G-2011 L1756558-01,02,03,04,05,06,07,08,09,10 Method Blank (MB) (MB) R4095247-1 07/17/24 10:11 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1756558-08 Original Sample (OS) • Duplicate (DUP) (OS) L1756558-08 07/17/24 10:11 • (DUP) R4095247-3 07/17/24 10:11 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 97.7 97.6 1 0.126 10 Laboratory Control Sample (LCS) (LCS) R4095247-2 07/17/24 10:11 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 25 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 25 of 33 QUALITY CONTROL SUMMARYWG2324475 Total Solids by Method 2540 G-2011 L1756558-11,12,13,14,15,16,17,18 Method Blank (MB) (MB) R4095241-1 07/17/24 09:56 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1756558-12 Original Sample (OS) • Duplicate (DUP) (OS) L1756558-12 07/17/24 09:56 • (DUP) R4095241-3 07/17/24 09:56 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 97.6 98.2 1 0.646 10 Laboratory Control Sample (LCS) (LCS) R4095241-2 07/17/24 09:56 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 26 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 26 of 33 QUALITY CONTROL SUMMARYWG2324902 Metals (ICP) by Method 6010B L1756558-18 Method Blank (MB) (MB) R4096327-1 07/19/24 15:37 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4096327-2 07/19/24 15:39 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 96.7 96.7 80.0-120 Lead 100 98.4 98.4 80.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 27 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 27 of 33 QUALITY CONTROL SUMMARYWG2324918 Metals (ICP) by Method 6010B L1756558-10,11,12,13,14,15,16,17 Method Blank (MB) (MB) R4096328-1 07/19/24 17:20 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4096328-2 07/19/24 17:21 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 94.9 94.9 80.0-120 Lead 100 96.1 96.1 80.0-120 L1756558-10 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1756558-10 07/19/24 17:23 • (MS) R4096328-5 07/19/24 17:28 • (MSD) R4096328-6 07/19/24 17:30 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 103 8.51 83.2 83.1 72.7 72.6 1 75.0-125 J6 J6 0.123 20 Lead 103 80.6 157 153 74.8 70.8 1 75.0-125 J6 J6 2.64 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 28 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 28 of 33 QUALITY CONTROL SUMMARYWG2324931 Metals (ICP) by Method 6010B L1756558-01,02,03,04,05,06,07,08,09 Method Blank (MB) (MB) R4095696-1 07/18/24 13:15 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4095696-2 07/18/24 13:18 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 90.6 90.6 80.0-120 Lead 100 89.9 89.9 80.0-120 L1756289-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1756289-01 07/18/24 13:20 • (MS) R4095696-5 07/18/24 13:29 • (MSD) R4095696-6 07/18/24 13:31 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg %%%%% Arsenic 133 13.7 124 117 82.8 77.6 1 75.0-125 5.81 20 Lead 133 13.6 129 121 86.5 81.1 1 75.0-125 5.74 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 29 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 29 of 33 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 30 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 30 of 33 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 14:49 31 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756558 08/06/24 15:57 31 of 33 ANALYTICAL REPORT August 06, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1756560 Samples Received:07/13/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: August 06, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 1 of 35 August 06, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 1 of 35 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-396_070924 L1756560-01 7 SP-397_070924 L1756560-02 8 SP-398_070924 L1756560-03 9 SP-399_070924 L1756560-04 10 SP-400_070924 L1756560-05 11 SP-401_071124 L1756560-06 12 SP-402_071124 L1756560-07 13 SP-403_071124 L1756560-08 14 SP-404_071124 L1756560-09 15 SP-405_071124 L1756560-10 16 CS-141_071024 L1756560-11 17 CS-142_071024 L1756560-12 18 CS-143_071224 L1756560-13 19 CS-144_071224 L1756560-14 20 CS-145_071224 L1756560-15 21 CS-146_071224 L1756560-16 22 CS-147_071224 L1756560-17 23 CS-134-SW-1_071124 L1756560-18 24 DUP-13 L1756560-19 25 DUP-14 L1756560-20 26 Qc: Quality Control Summary 27 Total Solids by Method 2540 G-2011 27 Metals (ICP) by Method 6010B 30 Gl: Glossary of Terms 32 Al: Accreditations & Locations 33 Sc: Sample Chain of Custody 34 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 2 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 2 of 35 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-396_070924 L1756560-01 Solid Annie Matzke 07/09/24 13:48 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324475 1 07/17/24 09:43 07/17/24 09:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 15:51 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-397_070924 L1756560-02 Solid Annie Matzke 07/09/24 14:00 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324475 1 07/17/24 09:43 07/17/24 09:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 15:52 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-398_070924 L1756560-03 Solid Annie Matzke 07/09/24 14:15 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324476 1 07/17/24 09:29 07/17/24 09:41 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 15:57 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-399_070924 L1756560-04 Solid Annie Matzke 07/09/24 14:24 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324476 1 07/17/24 09:29 07/17/24 09:41 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 15:59 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-400_070924 L1756560-05 Solid Annie Matzke 07/09/24 14:47 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324476 1 07/17/24 09:29 07/17/24 09:41 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 16:01 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-401_071124 L1756560-06 Solid Annie Matzke 07/11/24 12:20 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324476 1 07/17/24 09:29 07/17/24 09:41 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 16:03 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-402_071124 L1756560-07 Solid Annie Matzke 07/11/24 12:35 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324476 1 07/17/24 09:29 07/17/24 09:41 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 16:04 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 3 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 3 of 35 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-403_071124 L1756560-08 Solid Annie Matzke 07/11/24 12:50 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324476 1 07/17/24 09:29 07/17/24 09:41 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 16:06 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-404_071124 L1756560-09 Solid Annie Matzke 07/11/24 13:00 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324476 1 07/17/24 09:29 07/17/24 09:41 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 16:08 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-405_071124 L1756560-10 Solid Annie Matzke 07/11/24 14:12 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324476 1 07/17/24 09:29 07/17/24 09:41 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/19/24 18:49 JTM Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/20/24 13:28 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-141_071024 L1756560-11 Solid Annie Matzke 07/10/24 13:45 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324476 1 07/17/24 09:29 07/17/24 09:41 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 16:09 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-142_071024 L1756560-12 Solid Annie Matzke 07/10/24 14:15 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324476 1 07/17/24 09:29 07/17/24 09:41 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 16:11 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-143_071224 L1756560-13 Solid Annie Matzke 07/12/24 12:45 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324477 1 07/17/24 12:44 07/17/24 12:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 16:13 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-144_071224 L1756560-14 Solid Annie Matzke 07/12/24 12:00 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324477 1 07/17/24 12:44 07/17/24 12:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 16:18 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 4 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 4 of 35 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-145_071224 L1756560-15 Solid Annie Matzke 07/12/24 12:36 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324477 1 07/17/24 12:44 07/17/24 12:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/19/24 18:58 JTM Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/20/24 13:30 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-146_071224 L1756560-16 Solid Annie Matzke 07/12/24 11:35 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324477 1 07/17/24 12:44 07/17/24 12:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/19/24 19:01 JTM Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/20/24 13:31 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-147_071224 L1756560-17 Solid Annie Matzke 07/11/24 13:10 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324477 1 07/17/24 12:44 07/17/24 12:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/19/24 19:04 JTM Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/20/24 13:33 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-134-SW-1_071124 L1756560-18 Solid Annie Matzke 07/12/24 11:25 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324477 1 07/17/24 12:44 07/17/24 12:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/19/24 19:07 JTM Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/20/24 13:35 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-13 L1756560-19 Solid Annie Matzke 07/12/24 14:00 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324477 1 07/17/24 12:44 07/17/24 12:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324902 1 07/18/24 08:00 07/19/24 15:41 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-14 L1756560-20 Solid Annie Matzke 07/12/24 13:00 07/13/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2324477 1 07/17/24 12:44 07/17/24 12:56 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/19/24 19:10 JTM Mt. Juliet, TN Metals (ICP) by Method 6010B WG2324924 1 07/17/24 14:57 07/20/24 13:36 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 5 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 5 of 35 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 6 of 35 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 6 of 35 SAMPLE RESULTS - 01 L1756560 SP-396_070924 Collected date/time: 07/09/24 13:48 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.7 1 07/17/2024 09:56 WG2324475 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.5 0.547 2.11 1 07/19/2024 15:51 WG2324902 Lead 148 0.220 0.528 1 07/19/2024 15:51 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 7 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 7 of 35 SAMPLE RESULTS - 02 L1756560 SP-397_070924 Collected date/time: 07/09/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.2 1 07/17/2024 09:56 WG2324475 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.3 0.533 2.06 1 07/19/2024 15:52 WG2324902 Lead 136 0.214 0.515 1 07/19/2024 15:52 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 8 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 8 of 35 SAMPLE RESULTS - 03 L1756560 SP-398_070924 Collected date/time: 07/09/24 14:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.6 1 07/17/2024 09:41 WG2324476 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.8 0.531 2.05 1 07/19/2024 15:57 WG2324902 Lead 145 0.213 0.512 1 07/19/2024 15:57 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 9 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 9 of 35 SAMPLE RESULTS - 04 L1756560 SP-399_070924 Collected date/time: 07/09/24 14:24 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.4 1 07/17/2024 09:41 WG2324476 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.8 0.532 2.05 1 07/19/2024 15:59 WG2324902 Lead 136 0.214 0.513 1 07/19/2024 15:59 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 10 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 10 of 35 SAMPLE RESULTS - 05 L1756560 SP-400_070924 Collected date/time: 07/09/24 14:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.9 1 07/17/2024 09:41 WG2324476 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.3 0.540 2.08 1 07/19/2024 16:01 WG2324902 Lead 183 0.217 0.521 1 07/19/2024 16:01 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 11 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 11 of 35 SAMPLE RESULTS - 06 L1756560 SP-401_071124 Collected date/time: 07/11/24 12:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.6 1 07/17/2024 09:41 WG2324476 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.3 0.547 2.11 1 07/19/2024 16:03 WG2324902 Lead 178 0.220 0.528 1 07/19/2024 16:03 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 12 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 12 of 35 SAMPLE RESULTS - 07 L1756560 SP-402_071124 Collected date/time: 07/11/24 12:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.7 1 07/17/2024 09:41 WG2324476 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.35 0.547 2.11 1 07/19/2024 16:04 WG2324902 Lead 81.1 0.220 0.528 1 07/19/2024 16:04 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 13 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 13 of 35 SAMPLE RESULTS - 08 L1756560 SP-403_071124 Collected date/time: 07/11/24 12:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.4 1 07/17/2024 09:41 WG2324476 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.7 0.538 2.08 1 07/19/2024 16:06 WG2324902 Lead 337 0.216 0.519 1 07/19/2024 16:06 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 14 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 14 of 35 SAMPLE RESULTS - 09 L1756560 SP-404_071124 Collected date/time: 07/11/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.5 1 07/17/2024 09:41 WG2324476 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.8 0.542 2.09 1 07/19/2024 16:08 WG2324902 Lead 115 0.218 0.524 1 07/19/2024 16:08 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 15 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 15 of 35 SAMPLE RESULTS - 10 L1756560 SP-405_071124 Collected date/time: 07/11/24 14:12 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.9 1 07/17/2024 09:41 WG2324476 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.5 0.529 2.04 1 07/20/2024 13:28 WG2324924 Lead 256 0.213 0.511 1 07/19/2024 18:49 WG2324924 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 16 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 16 of 35 SAMPLE RESULTS - 11 L1756560 CS-141_071024 Collected date/time: 07/10/24 13:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 99.1 1 07/17/2024 09:41 WG2324476 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.01 0.523 2.02 1 07/19/2024 16:09 WG2324902 Lead 65.7 0.210 0.504 1 07/19/2024 16:09 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 17 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 17 of 35 SAMPLE RESULTS - 12 L1756560 CS-142_071024 Collected date/time: 07/10/24 14:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.8 1 07/17/2024 09:41 WG2324476 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.3 0.524 2.02 1 07/19/2024 16:11 WG2324902 Lead 92.0 0.210 0.506 1 07/19/2024 16:11 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 18 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 18 of 35 SAMPLE RESULTS - 13 L1756560 CS-143_071224 Collected date/time: 07/12/24 12:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.6 1 07/17/2024 12:56 WG2324477 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.85 0.525 2.03 1 07/19/2024 16:13 WG2324902 Lead 113 0.211 0.507 1 07/19/2024 16:13 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 19 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 19 of 35 SAMPLE RESULTS - 14 L1756560 CS-144_071224 Collected date/time: 07/12/24 12:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.4 1 07/17/2024 12:56 WG2324477 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.51 0.532 2.05 1 07/19/2024 16:18 WG2324902 Lead 88.2 0.214 0.514 1 07/19/2024 16:18 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 20 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 20 of 35 SAMPLE RESULTS - 15 L1756560 CS-145_071224 Collected date/time: 07/12/24 12:36 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.6 1 07/17/2024 12:56 WG2324477 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.9 0.531 2.05 1 07/20/2024 13:30 WG2324924 Lead 94.8 0.213 0.512 1 07/19/2024 18:58 WG2324924 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 21 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 21 of 35 SAMPLE RESULTS - 16 L1756560 CS-146_071224 Collected date/time: 07/12/24 11:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.9 1 07/17/2024 12:56 WG2324477 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.1 0.529 2.04 1 07/20/2024 13:31 WG2324924 Lead 78.7 0.212 0.511 1 07/19/2024 19:01 WG2324924 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 22 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 22 of 35 SAMPLE RESULTS - 17 L1756560 CS-147_071224 Collected date/time: 07/11/24 13:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.7 1 07/17/2024 12:56 WG2324477 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.0 0.525 2.03 1 07/20/2024 13:33 WG2324924 Lead 174 0.211 0.507 1 07/19/2024 19:04 WG2324924 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 23 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 23 of 35 SAMPLE RESULTS - 18 L1756560 CS-134-SW-1_071124 Collected date/time: 07/12/24 11:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.9 1 07/17/2024 12:56 WG2324477 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 36.2 0.529 2.04 1 07/20/2024 13:35 WG2324924 Lead 1240 0.212 0.511 1 07/19/2024 19:07 WG2324924 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 24 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 24 of 35 SAMPLE RESULTS - 19 L1756560 DUP-13 Collected date/time: 07/12/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.0 1 07/17/2024 12:56 WG2324477 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.58 0.534 2.06 1 07/19/2024 15:41 WG2324902 Lead 85.3 0.214 0.515 1 07/19/2024 15:41 WG2324902 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 25 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 25 of 35 SAMPLE RESULTS - 20 L1756560 DUP-14 Collected date/time: 07/12/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.8 1 07/17/2024 12:56 WG2324477 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.34 0.530 2.05 1 07/20/2024 13:36 WG2324924 Lead 87.8 0.213 0.512 1 07/19/2024 19:10 WG2324924 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 26 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 26 of 35 QUALITY CONTROL SUMMARYWG2324475 Total Solids by Method 2540 G-2011 L1756560-01,02 Method Blank (MB) (MB) R4095241-1 07/17/24 09:56 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1756558-12 Original Sample (OS) • Duplicate (DUP) (OS) L1756558-12 07/17/24 09:56 • (DUP) R4095241-3 07/17/24 09:56 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 97.6 98.2 1 0.646 10 Laboratory Control Sample (LCS) (LCS) R4095241-2 07/17/24 09:56 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 27 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 27 of 35 QUALITY CONTROL SUMMARYWG2324476 Total Solids by Method 2540 G-2011 L1756560-03,04,05,06,07,08,09,10,11,12 Method Blank (MB) (MB) R4095233-1 07/17/24 09:41 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1756560-10 Original Sample (OS) • Duplicate (DUP) (OS) L1756560-10 07/17/24 09:41 • (DUP) R4095233-3 07/17/24 09:41 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 97.9 98.7 1 0.792 10 Laboratory Control Sample (LCS) (LCS) R4095233-2 07/17/24 09:41 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.1 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 28 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 28 of 35 QUALITY CONTROL SUMMARYWG2324477 Total Solids by Method 2540 G-2011 L1756560-13,14,15,16,17,18,19,20 Method Blank (MB) (MB) R4095282-1 07/17/24 12:56 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1756560-20 Original Sample (OS) • Duplicate (DUP) (OS) L1756560-20 07/17/24 12:56 • (DUP) R4095282-3 07/17/24 12:56 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 97.8 97.4 1 0.386 10 Laboratory Control Sample (LCS) (LCS) R4095282-2 07/17/24 12:56 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.1 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 29 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 29 of 35 QUALITY CONTROL SUMMARYWG2324902 Metals (ICP) by Method 6010B L1756560-01,02,03,04,05,06,07,08,09,11,12,13,14,19 Method Blank (MB) (MB) R4096327-1 07/19/24 15:37 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4096327-2 07/19/24 15:39 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 96.7 96.7 80.0-120 Lead 100 98.4 98.4 80.0-120 L1756560-19 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1756560-19 07/19/24 15:41 • (MS) R4096327-5 07/19/24 15:46 • (MSD) R4096327-6 07/19/24 15:47 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 103 9.58 105 112 92.6 99.6 1 75.0-125 6.64 20 Lead 103 85.3 165 192 77.2 104 1 75.0-125 15.2 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 30 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 30 of 35 QUALITY CONTROL SUMMARYWG2324924 Metals (ICP) by Method 6010B L1756560-10,15,16,17,18,20 Method Blank (MB) (MB) R4096336-1 07/19/24 17:47 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Lead U 0.208 0.500 Method Blank (MB) (MB) R4096372-1 07/20/24 12:43 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Laboratory Control Sample (LCS) (LCS) R4096336-2 07/19/24 17:50 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Lead 100 98.2 98.2 80.0-120 Laboratory Control Sample (LCS) (LCS) R4096372-2 07/20/24 12:45 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 94.2 94.2 80.0-120 L1756769-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1756769-01 07/19/24 17:53 • (MS) R4096336-5 07/19/24 18:01 • (MSD) R4096336-6 07/19/24 18:03 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Lead 106 5.83 115 112 103 99.5 1 75.0-125 3.08 20 L1756769-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1756769-01 07/20/24 12:46 • (MS) R4096372-5 07/20/24 12:51 • (MSD) R4096372-6 07/20/24 12:53 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 106 1.53 104 99.8 96.0 92.3 1 75.0-125 3.88 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 31 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 31 of 35 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 32 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 32 of 35 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:16 33 of 35 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1756560 08/06/24 15:57 33 of 35 ANALYTICAL REPORT July 24, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1757572 Samples Received:07/17/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: July 24, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 1 of 20 July 24, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 1 of 20 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SP-412_071524 L1757572-01 6 SP-413_071524 L1757572-02 7 SP-414_071524 L1757572-03 8 SP-415_071524 L1757572-04 9 SP-416_071524 L1757572-05 10 SP-417_071524 L1757572-06 11 SP-418_071524 L1757572-07 12 SP-419_071524 L1757572-08 13 Qc: Quality Control Summary 14 Total Solids by Method 2540 G-2011 14 Metals (ICP) by Method 6010B 16 Gl: Glossary of Terms 18 Al: Accreditations & Locations 19 Sc: Sample Chain of Custody 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 2 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 2 of 20 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-412_071524 L1757572-01 Solid Daniel Salas 07/15/24 11:12 07/17/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2326112 1 07/19/24 07:31 07/19/24 07:39 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2326400 1 07/20/24 07:20 07/21/24 11:38 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-413_071524 L1757572-02 Solid Daniel Salas 07/15/24 11:27 07/17/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2326112 1 07/19/24 07:31 07/19/24 07:39 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2326400 1 07/20/24 07:20 07/21/24 11:40 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-414_071524 L1757572-03 Solid Daniel Salas 07/15/24 11:42 07/17/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2326113 1 07/19/24 08:16 07/19/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2326400 1 07/20/24 07:20 07/21/24 11:41 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-415_071524 L1757572-04 Solid Daniel Salas 07/15/24 11:57 07/17/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2326113 1 07/19/24 08:16 07/19/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2326400 1 07/20/24 07:20 07/21/24 11:46 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-416_071524 L1757572-05 Solid Daniel Salas 07/15/24 12:31 07/17/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2326113 1 07/19/24 08:16 07/19/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2326400 1 07/20/24 07:20 07/21/24 11:48 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-417_071524 L1757572-06 Solid Daniel Salas 07/15/24 12:49 07/17/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2326113 1 07/19/24 08:16 07/19/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2326400 1 07/20/24 07:20 07/21/24 11:50 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-418_071524 L1757572-07 Solid Daniel Salas 07/15/24 16:55 07/17/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2326113 1 07/19/24 08:16 07/19/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2326529 1 07/23/24 06:50 07/23/24 16:49 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 3 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 3 of 20 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-419_071524 L1757572-08 Solid Daniel Salas 07/15/24 17:10 07/17/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2326113 1 07/19/24 08:16 07/19/24 08:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2326529 1 07/23/24 06:50 07/23/24 16:50 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 4 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 4 of 20 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 5 of 20 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 5 of 20 SAMPLE RESULTS - 01 L1757572 SP-412_071524 Collected date/time: 07/15/24 11:12 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.4 1 07/19/2024 07:39 WG2326112 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.47 0.537 2.07 1 07/21/2024 11:38 WG2326400 Lead 88.6 0.216 0.519 1 07/21/2024 11:38 WG2326400 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 6 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 6 of 20 SAMPLE RESULTS - 02 L1757572 SP-413_071524 Collected date/time: 07/15/24 11:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.0 1 07/19/2024 07:39 WG2326112 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.09 0.534 2.06 1 07/21/2024 11:40 WG2326400 Lead 57.7 0.214 0.516 1 07/21/2024 11:40 WG2326400 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 7 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 7 of 20 SAMPLE RESULTS - 03 L1757572 SP-414_071524 Collected date/time: 07/15/24 11:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.2 1 07/19/2024 08:21 WG2326113 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 6.83 0.533 2.06 1 07/21/2024 11:41 WG2326400 Lead 73.1 0.214 0.514 1 07/21/2024 11:41 WG2326400 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 8 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 8 of 20 SAMPLE RESULTS - 04 L1757572 SP-415_071524 Collected date/time: 07/15/24 11:57 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.9 1 07/19/2024 08:21 WG2326113 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.92 0.535 2.06 1 07/21/2024 11:46 WG2326400 Lead 126 0.215 0.516 1 07/21/2024 11:46 WG2326400 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 9 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 9 of 20 SAMPLE RESULTS - 05 L1757572 SP-416_071524 Collected date/time: 07/15/24 12:31 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.0 1 07/19/2024 08:21 WG2326113 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.31 0.540 2.08 1 07/21/2024 11:48 WG2326400 Lead 94.9 0.217 0.521 1 07/21/2024 11:48 WG2326400 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 10 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 10 of 20 SAMPLE RESULTS - 06 L1757572 SP-417_071524 Collected date/time: 07/15/24 12:49 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.2 1 07/19/2024 08:21 WG2326113 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.39 0.539 2.08 1 07/21/2024 11:50 WG2326400 Lead 103 0.216 0.520 1 07/21/2024 11:50 WG2326400 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 11 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 11 of 20 SAMPLE RESULTS - 07 L1757572 SP-418_071524 Collected date/time: 07/15/24 16:55 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.0 1 07/19/2024 08:21 WG2326113 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.7 0.529 2.04 1 07/23/2024 16:49 WG2326529 Lead 211 0.212 0.510 1 07/23/2024 16:49 WG2326529 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 12 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 12 of 20 SAMPLE RESULTS - 08 L1757572 SP-419_071524 Collected date/time: 07/15/24 17:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.3 1 07/19/2024 08:21 WG2326113 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.0 0.527 2.04 1 07/23/2024 16:50 WG2326529 Lead 169 0.212 0.509 1 07/23/2024 16:50 WG2326529 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 13 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 13 of 20 QUALITY CONTROL SUMMARYWG2326112 Total Solids by Method 2540 G-2011 L1757572-01,02 Method Blank (MB) (MB) R4096256-1 07/19/24 07:39 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1757844-03 Original Sample (OS) • Duplicate (DUP) (OS) L1757844-03 07/19/24 07:39 • (DUP) R4096256-3 07/19/24 07:39 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 91.7 91.1 1 0.652 10 Laboratory Control Sample (LCS) (LCS) R4096256-2 07/19/24 07:39 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 14 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 14 of 20 QUALITY CONTROL SUMMARYWG2326113 Total Solids by Method 2540 G-2011 L1757572-03,04,05,06,07,08 Method Blank (MB) (MB) R4096264-1 07/19/24 08:21 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1757588-03 Original Sample (OS) • Duplicate (DUP) (OS) L1757588-03 07/19/24 08:21 • (DUP) R4096264-3 07/19/24 08:21 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 98.4 98.4 1 0.0287 10 Laboratory Control Sample (LCS) (LCS) R4096264-2 07/19/24 08:21 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 15 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 15 of 20 QUALITY CONTROL SUMMARYWG2326400 Metals (ICP) by Method 6010B L1757572-01,02,03,04,05,06 Method Blank (MB) (MB) R4096701-1 07/21/24 11:26 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4096701-2 07/21/24 11:28 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 83.5 83.5 80.0-120 Lead 100 82.6 82.6 80.0-120 L1757864-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1757864-03 07/21/24 11:30 • (MS) R4096701-5 07/21/24 11:35 • (MSD) R4096701-6 07/21/24 11:36 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg %%%%% Arsenic 101 U 71.2 76.3 70.8 75.9 1 75.0-125 J6 6.87 20 Lead 101 1.03 69.6 75.5 68.1 74.0 1 75.0-125 J6 J6 8.13 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 16 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 16 of 20 QUALITY CONTROL SUMMARYWG2326529 Metals (ICP) by Method 6010B L1757572-07,08 Method Blank (MB) (MB) R4097585-3 07/23/24 16:25 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic 0.628 J 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4097585-4 07/23/24 16:27 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 98.3 98.3 80.0-120 Lead 100 95.5 95.5 80.0-120 L1757615-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1757615-06 07/23/24 16:28 • (MS) R4097585-7 07/23/24 16:33 • (MSD) R4097585-8 07/23/24 16:35 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 129 U 112 112 86.7 86.9 1 75.0-125 0.172 20 Lead 129 11.2 125 126 88.0 89.1 1 75.0-125 1.11 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 17 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 17 of 20 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 18 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 18 of 20 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 08:44 19 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1757572 07/24/24 13:21 19 of 20 ANALYTICAL REPORT August 05, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1761829 Samples Received:07/30/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: August 05, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 1 of 33 August 05, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 1 of 33 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-278_A_071924 L1761829-01 7 SP-278_B_071924 L1761829-02 8 SP-285_A_071924 L1761829-03 9 SP-285_B_071924 L1761829-04 10 SP-285_C_071924 L1761829-05 11 SP-420_071924 L1761829-06 12 SP-DUP-29 L1761829-07 13 SP-421_071924 L1761829-08 14 SP-422_071924 L1761829-09 15 SP-423_072224 L1761829-10 16 SP-424_072224 L1761829-11 17 SP-425_072224 L1761829-12 18 SP-426_072224 L1761829-13 19 SP-427_072224 L1761829-14 20 SP-428_072224 L1761829-15 21 SP-429_072524 L1761829-16 22 SP-430_072524 L1761829-17 23 SP-DUP-30 L1761829-18 24 SP-431_072524 L1761829-19 25 Qc: Quality Control Summary 26 Total Solids by Method 2540 G-2011 26 Metals (ICP) by Method 6010B 28 Gl: Glossary of Terms 30 Al: Accreditations & Locations 31 Sc: Sample Chain of Custody 32 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 2 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 2 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-278_A_071924 L1761829-01 Solid AM/DS 07/19/24 10:30 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333503 1 07/31/24 13:21 07/31/24 13:31 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334447 1 08/01/24 17:57 08/03/24 17:09 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-278_B_071924 L1761829-02 Solid AM/DS 07/19/24 10:49 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333503 1 07/31/24 13:21 07/31/24 13:31 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334447 1 08/01/24 17:57 08/03/24 17:11 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-285_A_071924 L1761829-03 Solid AM/DS 07/19/24 11:09 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333503 1 07/31/24 13:21 07/31/24 13:31 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334450 1 08/01/24 17:46 08/04/24 07:43 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-285_B_071924 L1761829-04 Solid AM/DS 07/19/24 11:21 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333503 1 07/31/24 13:21 07/31/24 13:31 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334447 1 08/01/24 17:57 08/03/24 17:13 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-285_C_071924 L1761829-05 Solid AM/DS 07/19/24 11:34 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333503 1 07/31/24 13:21 07/31/24 13:31 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334447 1 08/01/24 17:57 08/03/24 17:15 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-420_071924 L1761829-06 Solid AM/DS 07/19/24 14:02 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333503 1 07/31/24 13:21 07/31/24 13:31 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334447 1 08/01/24 17:57 08/03/24 17:16 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-29 L1761829-07 Solid AM/DS 07/19/24 14:07 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333503 1 07/31/24 13:21 07/31/24 13:31 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334447 1 08/01/24 17:57 08/03/24 17:18 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 3 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 3 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-421_071924 L1761829-08 Solid AM/DS 07/19/24 14:23 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333503 1 07/31/24 13:21 07/31/24 13:31 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334447 1 08/01/24 17:57 08/03/24 17:23 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-422_071924 L1761829-09 Solid AM/DS 07/19/24 14:36 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333503 1 07/31/24 13:21 07/31/24 13:31 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334447 1 08/01/24 17:57 08/03/24 17:25 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-423_072224 L1761829-10 Solid AM/DS 07/22/24 13:18 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333503 1 07/31/24 13:21 07/31/24 13:31 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334447 1 08/01/24 17:57 08/03/24 17:26 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-424_072224 L1761829-11 Solid AM/DS 07/22/24 13:25 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333504 1 07/31/24 13:11 07/31/24 13:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334447 1 08/01/24 17:57 08/03/24 17:28 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-425_072224 L1761829-12 Solid AM/DS 07/22/24 13:35 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333504 1 07/31/24 13:11 07/31/24 13:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334450 1 08/01/24 17:46 08/04/24 07:51 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-426_072224 L1761829-13 Solid AM/DS 07/22/24 14:13 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333504 1 07/31/24 13:11 07/31/24 13:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334450 1 08/01/24 17:46 08/04/24 07:53 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-427_072224 L1761829-14 Solid AM/DS 07/22/24 14:20 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333504 1 07/31/24 13:11 07/31/24 13:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334450 1 08/01/24 17:46 08/04/24 07:55 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 4 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 4 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-428_072224 L1761829-15 Solid AM/DS 07/22/24 14:30 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333504 1 07/31/24 13:11 07/31/24 13:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334450 1 08/01/24 17:46 08/04/24 08:05 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-429_072524 L1761829-16 Solid AM/DS 07/25/24 09:54 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333504 1 07/31/24 13:11 07/31/24 13:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334450 1 08/01/24 17:46 08/04/24 08:06 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-430_072524 L1761829-17 Solid AM/DS 07/25/24 10:00 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333504 1 07/31/24 13:11 07/31/24 13:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334450 1 08/01/24 17:46 08/04/24 08:08 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-30 L1761829-18 Solid AM/DS 07/25/24 10:30 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333504 1 07/31/24 13:11 07/31/24 13:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334450 1 08/01/24 17:46 08/04/24 08:10 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-431_072524 L1761829-19 Solid AM/DS 07/25/24 10:12 07/30/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333504 1 07/31/24 13:11 07/31/24 13:21 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334450 1 08/01/24 17:46 08/04/24 08:11 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 5 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 5 of 33 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 6 of 33 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 6 of 33 SAMPLE RESULTS - 01 L1761829 SP-278_A_071924 Collected date/time: 07/19/24 10:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.9 1 07/31/2024 13:31 WG2333503 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.9 0.546 2.11 1 08/03/2024 17:09 WG2334447 Lead 415 0.219 0.527 1 08/03/2024 17:09 WG2334447 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 7 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 7 of 33 SAMPLE RESULTS - 02 L1761829 SP-278_B_071924 Collected date/time: 07/19/24 10:49 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.3 1 07/31/2024 13:31 WG2333503 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.2 0.549 2.12 1 08/03/2024 17:11 WG2334447 Lead 358 0.220 0.530 1 08/03/2024 17:11 WG2334447 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 8 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 8 of 33 SAMPLE RESULTS - 03 L1761829 SP-285_A_071924 Collected date/time: 07/19/24 11:09 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.0 1 07/31/2024 13:31 WG2333503 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.7 0.563 2.17 1 08/04/2024 07:43 WG2334450 Lead 461 V 0.226 0.544 1 08/04/2024 07:43 WG2334450 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 9 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 9 of 33 SAMPLE RESULTS - 04 L1761829 SP-285_B_071924 Collected date/time: 07/19/24 11:21 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.8 1 07/31/2024 13:31 WG2333503 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.0 0.558 2.16 1 08/03/2024 17:13 WG2334447 Lead 443 0.224 0.539 1 08/03/2024 17:13 WG2334447 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 10 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 10 of 33 SAMPLE RESULTS - 05 L1761829 SP-285_C_071924 Collected date/time: 07/19/24 11:34 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.1 1 07/31/2024 13:31 WG2333503 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.9 0.556 2.15 1 08/03/2024 17:15 WG2334447 Lead 509 0.223 0.537 1 08/03/2024 17:15 WG2334447 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 11 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 11 of 33 SAMPLE RESULTS - 06 L1761829 SP-420_071924 Collected date/time: 07/19/24 14:02 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.8 1 07/31/2024 13:31 WG2333503 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.4 0.558 2.16 1 08/03/2024 17:16 WG2334447 Lead 331 0.224 0.539 1 08/03/2024 17:16 WG2334447 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 12 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 12 of 33 SAMPLE RESULTS - 07 L1761829 SP-DUP-29 Collected date/time: 07/19/24 14:07 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.6 1 07/31/2024 13:31 WG2333503 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.5 0.553 2.14 1 08/03/2024 17:18 WG2334447 Lead 549 0.222 0.534 1 08/03/2024 17:18 WG2334447 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 13 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 13 of 33 SAMPLE RESULTS - 08 L1761829 SP-421_071924 Collected date/time: 07/19/24 14:23 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.4 1 07/31/2024 13:31 WG2333503 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 23.8 0.555 2.14 1 08/03/2024 17:23 WG2334447 Lead 608 0.223 0.535 1 08/03/2024 17:23 WG2334447 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 14 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 14 of 33 SAMPLE RESULTS - 09 L1761829 SP-422_071924 Collected date/time: 07/19/24 14:36 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.3 1 07/31/2024 13:31 WG2333503 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.3 0.555 2.14 1 08/03/2024 17:25 WG2334447 Lead 320 0.223 0.536 1 08/03/2024 17:25 WG2334447 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 15 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 15 of 33 SAMPLE RESULTS - 10 L1761829 SP-423_072224 Collected date/time: 07/22/24 13:18 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.9 1 07/31/2024 13:31 WG2333503 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.8 0.558 2.15 1 08/03/2024 17:26 WG2334447 Lead 205 0.224 0.538 1 08/03/2024 17:26 WG2334447 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 16 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 16 of 33 SAMPLE RESULTS - 11 L1761829 SP-424_072224 Collected date/time: 07/22/24 13:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.6 1 07/31/2024 13:21 WG2333504 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.7 0.560 2.16 1 08/03/2024 17:28 WG2334447 Lead 377 0.225 0.540 1 08/03/2024 17:28 WG2334447 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 17 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 17 of 33 SAMPLE RESULTS - 12 L1761829 SP-425_072224 Collected date/time: 07/22/24 13:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.7 1 07/31/2024 13:21 WG2333504 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.7 0.571 2.20 1 08/04/2024 07:51 WG2334450 Lead 262 0.229 0.551 1 08/04/2024 07:51 WG2334450 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 18 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 18 of 33 SAMPLE RESULTS - 13 L1761829 SP-426_072224 Collected date/time: 07/22/24 14:13 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.0 1 07/31/2024 13:21 WG2333504 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.3 0.545 2.11 1 08/04/2024 07:53 WG2334450 Lead 462 0.219 0.526 1 08/04/2024 07:53 WG2334450 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 19 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 19 of 33 SAMPLE RESULTS - 14 L1761829 SP-427_072224 Collected date/time: 07/22/24 14:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.9 1 07/31/2024 13:21 WG2333504 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.6 0.546 2.11 1 08/04/2024 07:55 WG2334450 Lead 330 0.219 0.527 1 08/04/2024 07:55 WG2334450 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 20 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 20 of 33 SAMPLE RESULTS - 15 L1761829 SP-428_072224 Collected date/time: 07/22/24 14:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.7 1 07/31/2024 13:21 WG2333504 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.1 0.577 2.23 1 08/04/2024 08:05 WG2334450 Lead 179 0.232 0.557 1 08/04/2024 08:05 WG2334450 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 21 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 21 of 33 SAMPLE RESULTS - 16 L1761829 SP-429_072524 Collected date/time: 07/25/24 09:54 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.8 1 07/31/2024 13:21 WG2333504 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.0 0.546 2.11 1 08/04/2024 08:06 WG2334450 Lead 267 0.219 0.527 1 08/04/2024 08:06 WG2334450 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 22 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 22 of 33 SAMPLE RESULTS - 17 L1761829 SP-430_072524 Collected date/time: 07/25/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.8 1 07/31/2024 13:21 WG2333504 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.3 0.546 2.11 1 08/04/2024 08:08 WG2334450 Lead 219 0.219 0.527 1 08/04/2024 08:08 WG2334450 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 23 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 23 of 33 SAMPLE RESULTS - 18 L1761829 SP-DUP-30 Collected date/time: 07/25/24 10:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.9 1 07/31/2024 13:21 WG2333504 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.5 0.546 2.11 1 08/04/2024 08:10 WG2334450 Lead 200 0.219 0.527 1 08/04/2024 08:10 WG2334450 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 24 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 24 of 33 SAMPLE RESULTS - 19 L1761829 SP-431_072524 Collected date/time: 07/25/24 10:12 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.8 1 07/31/2024 13:21 WG2333504 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.5 0.558 2.15 1 08/04/2024 08:11 WG2334450 Lead 245 0.224 0.539 1 08/04/2024 08:11 WG2334450 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 25 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 25 of 33 QUALITY CONTROL SUMMARYWG2333503 Total Solids by Method 2540 G-2011 L1761829-01,02,03,04,05,06,07,08,09,10 Method Blank (MB) (MB) R4101186-1 07/31/24 13:31 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1761829-04 Original Sample (OS) • Duplicate (DUP) (OS) L1761829-04 07/31/24 13:31 • (DUP) R4101186-3 07/31/24 13:31 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 92.8 92.8 1 0.0352 10 Laboratory Control Sample (LCS) (LCS) R4101186-2 07/31/24 13:31 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 26 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 26 of 33 QUALITY CONTROL SUMMARYWG2333504 Total Solids by Method 2540 G-2011 L1761829-11,12,13,14,15,16,17,18,19 Method Blank (MB) (MB) R4101185-1 07/31/24 13:21 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1761829-16 Original Sample (OS) • Duplicate (DUP) (OS) L1761829-16 07/31/24 13:21 • (DUP) R4101185-3 07/31/24 13:21 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 94.8 94.7 1 0.0687 10 Laboratory Control Sample (LCS) (LCS) R4101185-2 07/31/24 13:21 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 27 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 27 of 33 QUALITY CONTROL SUMMARYWG2334447 Metals (ICP) by Method 6010B L1761829-01,02,04,05,06,07,08,09,10,11 Method Blank (MB) (MB) R4102369-1 08/03/24 16:42 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4102369-2 08/03/24 16:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 98.6 98.6 80.0-120 Lead 100 102 102 80.0-120 L1761988-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1761988-03 08/03/24 16:46 • (MS) R4102369-5 08/03/24 16:51 • (MSD) R4102369-6 08/03/24 16:52 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 3.36 100 96.1 96.8 92.8 1 75.0-125 4.06 20 Lead 100 8.27 111 107 103 99.2 1 75.0-125 3.31 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 28 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 28 of 33 QUALITY CONTROL SUMMARYWG2334450 Metals (ICP) by Method 6010B L1761829-03,12,13,14,15,16,17,18,19 Method Blank (MB) (MB) R4102490-7 08/04/24 08:03 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4102490-2 08/04/24 07:41 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 101 101 80.0-120 Lead 100 101 101 80.0-120 L1761829-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1761829-03 08/04/24 07:43 • (MS) R4102490-5 08/04/24 07:48 • (MSD) R4102490-6 08/04/24 07:50 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 109 19.7 138 139 108 109 1 75.0-125 0.626 20 Lead 109 461 615 614 142 141 1 75.0-125 V V 0.0613 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 29 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 29 of 33 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description V The sample concentration is too high to evaluate accurate spike recoveries. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 30 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 30 of 33 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 09:29 31 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761829 08/05/24 15:50 31 of 33 ANALYTICAL REPORT August 05, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1761885 Samples Received:07/31/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: August 05, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 1 of 16 August 05, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 1 of 16 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 SP-432_072924 L1761885-01 5 SP-433_072924 L1761885-02 6 SP-434_072924 L1761885-03 7 SP-435_072924 L1761885-04 8 SP-436_072924 L1761885-05 9 SP-437_072924 L1761885-06 10 Qc: Quality Control Summary 11 Total Solids by Method 2540 G-2011 11 Metals (ICP) by Method 6010B 12 Gl: Glossary of Terms 14 Al: Accreditations & Locations 15 Sc: Sample Chain of Custody 16 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 2 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 2 of 16 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-432_072924 L1761885-01 Solid Annie Matzke 07/29/24 13:45 07/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333998 1 08/01/24 08:50 08/01/24 08:59 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334443 1 08/01/24 17:05 08/04/24 10:06 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-433_072924 L1761885-02 Solid Annie Matzke 07/29/24 14:00 07/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333998 1 08/01/24 08:50 08/01/24 08:59 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334443 1 08/01/24 17:05 08/04/24 10:07 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-434_072924 L1761885-03 Solid Annie Matzke 07/29/24 14:11 07/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333998 1 08/01/24 08:50 08/01/24 08:59 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334443 1 08/01/24 17:05 08/04/24 10:09 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-435_072924 L1761885-04 Solid Annie Matzke 07/29/24 14:26 07/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333998 1 08/01/24 08:50 08/01/24 08:59 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334443 1 08/01/24 17:05 08/04/24 10:11 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-436_072924 L1761885-05 Solid Annie Matzke 07/29/24 14:39 07/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333998 1 08/01/24 08:50 08/01/24 08:59 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334470 1 08/01/24 23:25 08/02/24 17:11 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-437_072924 L1761885-06 Solid Annie Matzke 07/29/24 14:50 07/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2333998 1 08/01/24 08:50 08/01/24 08:59 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2334470 1 08/01/24 23:25 08/02/24 17:13 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 3 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 3 of 16 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 4 of 16 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 4 of 16 SAMPLE RESULTS - 01 L1761885 SP-432_072924 Collected date/time: 07/29/24 13:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.8 1 08/01/2024 08:59 WG2333998 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.1 0.535 2.07 1 08/04/2024 10:06 WG2334443 Lead 290 0.215 0.516 1 08/04/2024 10:06 WG2334443 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 5 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 5 of 16 SAMPLE RESULTS - 02 L1761885 SP-433_072924 Collected date/time: 07/29/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.5 1 08/01/2024 08:59 WG2333998 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.3 0.542 2.09 1 08/04/2024 10:07 WG2334443 Lead 414 0.218 0.523 1 08/04/2024 10:07 WG2334443 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 6 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 6 of 16 SAMPLE RESULTS - 03 L1761885 SP-434_072924 Collected date/time: 07/29/24 14:11 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.5 1 08/01/2024 08:59 WG2333998 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.4 0.542 2.09 1 08/04/2024 10:09 WG2334443 Lead 398 0.218 0.524 1 08/04/2024 10:09 WG2334443 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 7 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 7 of 16 SAMPLE RESULTS - 04 L1761885 SP-435_072924 Collected date/time: 07/29/24 14:26 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.4 1 08/01/2024 08:59 WG2333998 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.9 0.555 2.14 1 08/04/2024 10:11 WG2334443 Lead 147 0.223 0.535 1 08/04/2024 10:11 WG2334443 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 8 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 8 of 16 SAMPLE RESULTS - 05 L1761885 SP-436_072924 Collected date/time: 07/29/24 14:39 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.0 1 08/01/2024 08:59 WG2333998 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 5.52 0.545 2.10 1 08/02/2024 17:11 WG2334470 Lead 52.4 0.219 0.526 1 08/02/2024 17:11 WG2334470 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 9 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 9 of 16 SAMPLE RESULTS - 06 L1761885 SP-437_072924 Collected date/time: 07/29/24 14:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.1 1 08/01/2024 08:59 WG2333998 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 6.94 0.545 2.10 1 08/02/2024 17:13 WG2334470 Lead 97.5 0.219 0.526 1 08/02/2024 17:13 WG2334470 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 10 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 10 of 16 QUALITY CONTROL SUMMARYWG2333998 Total Solids by Method 2540 G-2011 L1761885-01,02,03,04,05,06 Method Blank (MB) (MB) R4101730-1 08/01/24 08:59 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1761885-06 Original Sample (OS) • Duplicate (DUP) (OS) L1761885-06 08/01/24 08:59 • (DUP) R4101730-3 08/01/24 08:59 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 95.1 95.4 1 0.281 10 Laboratory Control Sample (LCS) (LCS) R4101730-2 08/01/24 08:59 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 11 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 11 of 16 QUALITY CONTROL SUMMARYWG2334443 Metals (ICP) by Method 6010B L1761885-01,02,03,04 Method Blank (MB) (MB) R4102494-1 08/04/24 10:17 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4102494-2 08/04/24 10:19 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 98.3 98.3 80.0-120 Lead 100 100 100 80.0-120 L1761567-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1761567-01 08/04/24 10:21 • (MS) R4102494-5 08/04/24 10:26 • (MSD) R4102494-6 08/04/24 10:27 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 103 2.68 95.8 98.3 90.2 92.6 1 75.0-125 2.54 20 Lead 103 2.81 101 105 95.0 98.7 1 75.0-125 3.80 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 12 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 12 of 16 QUALITY CONTROL SUMMARYWG2334470 Metals (ICP) by Method 6010B L1761885-05,06 Method Blank (MB) (MB) R4102263-1 08/02/24 15:50 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead 0.257 J 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4102263-2 08/02/24 15:51 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 100 100 80.0-120 Lead 100 104 104 80.0-120 L1761737-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1761737-02 08/02/24 15:54 • (MS) R4102263-5 08/02/24 15:59 • (MSD) R4102263-6 08/02/24 16:00 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 124 1.83 125 112 99.8 89.4 1 75.0-125 10.8 20 Lead 124 6.36 146 139 113 107 1 75.0-125 5.03 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 13 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 13 of 16 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 14 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 14 of 16 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 09:29 15 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1761885 08/05/24 15:50 15 of 16 ANALYTICAL REPORT August 07, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1762805 Samples Received:08/02/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: August 07, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 1 of 19 August 07, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 1 of 19 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SP-438_073124 L1762805-01 6 SP-439_073124 L1762805-02 7 SP-440_073124 L1762805-03 8 SP-441_073124 L1762805-04 9 SP-442_073124 L1762805-05 10 SP-443_073124 L1762805-06 11 SP-444_073124 L1762805-07 12 SP-445_073124 L1762805-08 13 SP-DUP-31 L1762805-09 14 Qc: Quality Control Summary 15 Total Solids by Method 2540 G-2011 15 Metals (ICP) by Method 6010B 16 Gl: Glossary of Terms 17 Al: Accreditations & Locations 18 Sc: Sample Chain of Custody 19 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 2 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 2 of 19 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-438_073124 L1762805-01 Solid Annie Matzke 07/31/24 11:48 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335124 1 08/03/24 10:55 08/03/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335685 1 08/06/24 08:56 08/07/24 00:18 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time SP-439_073124 L1762805-02 Solid Annie Matzke 07/31/24 11:56 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335124 1 08/03/24 10:55 08/03/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335685 1 08/06/24 08:56 08/07/24 00:01 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time SP-440_073124 L1762805-03 Solid Annie Matzke 07/31/24 12:08 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335124 1 08/03/24 10:55 08/03/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335685 1 08/06/24 08:56 08/07/24 00:20 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time SP-441_073124 L1762805-04 Solid Annie Matzke 07/31/24 12:15 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335124 1 08/03/24 10:55 08/03/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335685 1 08/06/24 08:56 08/07/24 00:21 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time SP-442_073124 L1762805-05 Solid Annie Matzke 07/31/24 14:08 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335124 1 08/03/24 10:55 08/03/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335685 1 08/06/24 08:56 08/07/24 00:23 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time SP-443_073124 L1762805-06 Solid Annie Matzke 07/31/24 14:15 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335124 1 08/03/24 10:55 08/03/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335685 1 08/06/24 08:56 08/07/24 00:25 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time SP-444_073124 L1762805-07 Solid Annie Matzke 07/31/24 14:25 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335124 1 08/03/24 10:55 08/03/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335685 1 08/06/24 08:56 08/07/24 00:26 MAP Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 3 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 3 of 19 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-445_073124 L1762805-08 Solid Annie Matzke 07/31/24 14:35 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335124 1 08/03/24 10:55 08/03/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335685 1 08/06/24 08:56 08/07/24 00:28 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-31 L1762805-09 Solid Annie Matzke 07/31/24 12:30 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335124 1 08/03/24 10:55 08/03/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335685 1 08/06/24 08:56 08/07/24 00:30 MAP Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 4 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 4 of 19 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 5 of 19 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 5 of 19 SAMPLE RESULTS - 01 L1762805 SP-438_073124 Collected date/time: 07/31/24 11:48 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.6 1 08/03/2024 11:26 WG2335124 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.4 0.566 2.18 1 08/07/2024 00:18 WG2335685 Lead 217 0.227 0.546 1 08/07/2024 00:18 WG2335685 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 6 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 6 of 19 SAMPLE RESULTS - 02 L1762805 SP-439_073124 Collected date/time: 07/31/24 11:56 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.6 1 08/03/2024 11:26 WG2335124 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.3 0.553 2.14 1 08/07/2024 00:01 WG2335685 Lead 407 J6 O1 0.222 0.534 1 08/07/2024 00:01 WG2335685 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 7 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 7 of 19 SAMPLE RESULTS - 03 L1762805 SP-440_073124 Collected date/time: 07/31/24 12:08 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.0 1 08/03/2024 11:26 WG2335124 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.24 0.563 2.17 1 08/07/2024 00:20 WG2335685 Lead 186 0.226 0.544 1 08/07/2024 00:20 WG2335685 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 8 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 8 of 19 SAMPLE RESULTS - 04 L1762805 SP-441_073124 Collected date/time: 07/31/24 12:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.5 1 08/03/2024 11:26 WG2335124 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.6 0.560 2.16 1 08/07/2024 00:21 WG2335685 Lead 172 0.225 0.541 1 08/07/2024 00:21 WG2335685 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 9 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 9 of 19 SAMPLE RESULTS - 05 L1762805 SP-442_073124 Collected date/time: 07/31/24 14:08 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.7 1 08/03/2024 11:26 WG2335124 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.14 0.565 2.18 1 08/07/2024 00:23 WG2335685 Lead 106 0.227 0.545 1 08/07/2024 00:23 WG2335685 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 10 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 10 of 19 SAMPLE RESULTS - 06 L1762805 SP-443_073124 Collected date/time: 07/31/24 14:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.6 1 08/03/2024 11:26 WG2335124 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.2 0.560 2.16 1 08/07/2024 00:25 WG2335685 Lead 228 0.225 0.540 1 08/07/2024 00:25 WG2335685 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 11 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 11 of 19 SAMPLE RESULTS - 07 L1762805 SP-444_073124 Collected date/time: 07/31/24 14:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.5 1 08/03/2024 11:26 WG2335124 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.0 0.566 2.19 1 08/07/2024 00:26 WG2335685 Lead 205 0.227 0.546 1 08/07/2024 00:26 WG2335685 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 12 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 12 of 19 SAMPLE RESULTS - 08 L1762805 SP-445_073124 Collected date/time: 07/31/24 14:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.0 1 08/03/2024 11:26 WG2335124 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.9 0.563 2.17 1 08/07/2024 00:28 WG2335685 Lead 216 0.226 0.543 1 08/07/2024 00:28 WG2335685 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 13 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 13 of 19 SAMPLE RESULTS - 09 L1762805 SP-DUP-31 Collected date/time: 07/31/24 12:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.5 1 08/03/2024 11:26 WG2335124 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.01 0.560 2.16 1 08/07/2024 00:30 WG2335685 Lead 113 0.225 0.540 1 08/07/2024 00:30 WG2335685 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 14 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 14 of 19 QUALITY CONTROL SUMMARYWG2335124 Total Solids by Method 2540 G-2011 L1762805-01,02,03,04,05,06,07,08,09 Method Blank (MB) (MB) R4102544-1 08/03/24 11:26 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1762805-07 Original Sample (OS) • Duplicate (DUP) (OS) L1762805-07 08/03/24 11:26 • (DUP) R4102544-3 08/03/24 11:26 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 91.5 91.6 1 0.0837 10 Laboratory Control Sample (LCS) (LCS) R4102544-2 08/03/24 11:26 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 15 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 15 of 19 QUALITY CONTROL SUMMARYWG2335685 Metals (ICP) by Method 6010B L1762805-01,02,03,04,05,06,07,08,09 Method Blank (MB) (MB) R4103534-1 08/06/24 23:58 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4103534-2 08/06/24 23:59 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.0 93.0 80.0-120 Lead 100 97.9 97.9 80.0-120 L1762805-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1762805-02 08/07/24 00:01 • (MS) R4103534-5 08/07/24 00:06 • (MSD) R4103534-6 08/07/24 00:08 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 107 17.3 119 115 95.3 91.7 1 75.0-125 3.28 20 Lead 107 407 487 494 74.8 81.4 1 75.0-125 J6 1.43 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 16 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 16 of 19 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. O1 The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 17 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 17 of 19 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 09:49 18 of 19 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762805 08/07/24 12:33 18 of 19 ANALYTICAL REPORT August 06, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1762808 Samples Received:08/02/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: August 06, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 1 of 21 August 06, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 1 of 21 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 CS-148_071724 L1762808-01 6 CS-149_071724 L1762808-02 7 CS-150_071724 L1762808-03 8 CS-152_071724 L1762808-05 9 CS-153_071924 L1762808-06 10 CS-157_072424 L1762808-07 11 CS-158_072524 L1762808-08 12 CS-159_071724 L1762808-09 13 DUP-15 L1762808-10 14 Qc: Quality Control Summary 15 Total Solids by Method 2540 G-2011 15 Metals (ICP) by Method 6010B 17 Gl: Glossary of Terms 18 Al: Accreditations & Locations 19 Sc: Sample Chain of Custody 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 2 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 2 of 21 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-148_071724 L1762808-01 Solid Annie Matzke 07/17/24 12:45 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335621 1 08/03/24 16:10 08/03/24 16:19 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335720 1 08/04/24 08:38 08/06/24 09:29 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-149_071724 L1762808-02 Solid Annie Matzke 07/17/24 14:20 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335621 1 08/03/24 16:10 08/03/24 16:19 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335720 1 08/04/24 08:38 08/06/24 09:30 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-150_071724 L1762808-03 Solid Annie Matzke 07/17/24 14:45 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335621 1 08/03/24 16:10 08/03/24 16:19 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335720 1 08/04/24 08:38 08/06/24 09:32 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-152_071724 L1762808-05 Solid Annie Matzke 07/17/24 12:05 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335621 1 08/03/24 16:10 08/03/24 16:19 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335720 1 08/04/24 08:38 08/06/24 09:21 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-153_071924 L1762808-06 Solid Annie Matzke 07/19/24 13:00 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335621 1 08/03/24 16:10 08/03/24 16:19 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335720 1 08/04/24 08:38 08/06/24 09:42 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-157_072424 L1762808-07 Solid Annie Matzke 07/24/24 11:40 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335621 1 08/03/24 16:10 08/03/24 16:19 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335720 1 08/04/24 08:38 08/06/24 09:44 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time CS-158_072524 L1762808-08 Solid Annie Matzke 07/25/24 13:00 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335622 1 08/03/24 15:52 08/03/24 16:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335720 1 08/04/24 08:38 08/06/24 09:45 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 3 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 3 of 21 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-159_071724 L1762808-09 Solid Annie Matzke 07/30/24 11:30 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335622 1 08/03/24 15:52 08/03/24 16:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335720 1 08/04/24 08:38 08/06/24 09:47 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-15 L1762808-10 Solid Annie Matzke 07/17/24 15:30 08/02/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2335622 1 08/03/24 15:52 08/03/24 16:07 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2335720 1 08/04/24 08:38 08/06/24 09:49 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 4 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 4 of 21 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 5 of 21 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 5 of 21 SAMPLE RESULTS - 01 L1762808 CS-148_071724 Collected date/time: 07/17/24 12:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.2 1 08/03/2024 16:19 WG2335621 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.9 0.533 2.06 1 08/06/2024 09:29 WG2335720 Lead 144 0.214 0.515 1 08/06/2024 09:29 WG2335720 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 6 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 6 of 21 SAMPLE RESULTS - 02 L1762808 CS-149_071724 Collected date/time: 07/17/24 14:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.3 1 08/03/2024 16:19 WG2335621 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.7 0.532 2.06 1 08/06/2024 09:30 WG2335720 Lead 46.3 0.214 0.514 1 08/06/2024 09:30 WG2335720 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 7 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 7 of 21 SAMPLE RESULTS - 03 L1762808 CS-150_071724 Collected date/time: 07/17/24 14:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.3 1 08/03/2024 16:19 WG2335621 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.6 0.538 2.08 1 08/06/2024 09:32 WG2335720 Lead 82.3 0.216 0.519 1 08/06/2024 09:32 WG2335720 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 8 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 8 of 21 SAMPLE RESULTS - 05 L1762808 CS-152_071724 Collected date/time: 07/17/24 12:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.3 1 08/03/2024 16:19 WG2335621 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.4 0.555 2.14 1 08/06/2024 09:21 WG2335720 Lead 177 J6 0.223 0.536 1 08/06/2024 09:21 WG2335720 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 9 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 9 of 21 SAMPLE RESULTS - 06 L1762808 CS-153_071924 Collected date/time: 07/19/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.6 1 08/03/2024 16:19 WG2335621 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.2 0.584 2.26 1 08/06/2024 09:42 WG2335720 Lead 108 0.235 0.564 1 08/06/2024 09:42 WG2335720 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 10 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 10 of 21 SAMPLE RESULTS - 07 L1762808 CS-157_072424 Collected date/time: 07/24/24 11:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.3 1 08/03/2024 16:19 WG2335621 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.2 0.555 2.14 1 08/06/2024 09:44 WG2335720 Lead 26.9 0.223 0.536 1 08/06/2024 09:44 WG2335720 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 11 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 11 of 21 SAMPLE RESULTS - 08 L1762808 CS-158_072524 Collected date/time: 07/25/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.8 1 08/03/2024 16:07 WG2335622 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.8 0.565 2.18 1 08/06/2024 09:45 WG2335720 Lead 113 0.227 0.545 1 08/06/2024 09:45 WG2335720 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 12 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 12 of 21 SAMPLE RESULTS - 09 L1762808 CS-159_071724 Collected date/time: 07/30/24 11:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.7 1 08/03/2024 16:07 WG2335622 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.0 0.553 2.13 1 08/06/2024 09:47 WG2335720 Lead 179 0.222 0.534 1 08/06/2024 09:47 WG2335720 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 13 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 13 of 21 SAMPLE RESULTS - 10 L1762808 DUP-15 Collected date/time: 07/17/24 15:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.4 1 08/03/2024 16:07 WG2335622 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.1 0.537 2.08 1 08/06/2024 09:49 WG2335720 Lead 96.8 0.216 0.519 1 08/06/2024 09:49 WG2335720 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 14 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 14 of 21 QUALITY CONTROL SUMMARYWG2335621 Total Solids by Method 2540 G-2011 L1762808-01,02,03,05,06,07 Method Blank (MB) (MB) R4102566-1 08/03/24 16:19 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1762808-05 Original Sample (OS) • Duplicate (DUP) (OS) L1762808-05 08/03/24 16:19 • (DUP) R4102566-3 08/03/24 16:19 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 93.3 93.8 1 0.540 10 Laboratory Control Sample (LCS) (LCS) R4102566-2 08/03/24 16:19 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 15 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 15 of 21 QUALITY CONTROL SUMMARYWG2335622 Total Solids by Method 2540 G-2011 L1762808-08,09,10 Method Blank (MB) (MB) R4102559-1 08/03/24 16:07 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1762812-05 Original Sample (OS) • Duplicate (DUP) (OS) L1762812-05 08/03/24 16:07 • (DUP) R4102559-3 08/03/24 16:07 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 92.1 91.9 1 0.168 10 Laboratory Control Sample (LCS) (LCS) R4102559-2 08/03/24 16:07 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 16 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 16 of 21 QUALITY CONTROL SUMMARYWG2335720 Metals (ICP) by Method 6010B L1762808-01,02,03,05,06,07,08,09,10 Method Blank (MB) (MB) R4103279-1 08/06/24 09:17 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4103279-2 08/06/24 09:19 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 97.9 97.9 80.0-120 Lead 100 97.5 97.5 80.0-120 L1762808-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1762808-05 08/06/24 09:21 • (MS) R4103279-5 08/06/24 09:26 • (MSD) R4103279-6 08/06/24 09:27 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 107 16.4 105 103 82.6 80.8 1 75.0-125 1.88 20 Lead 107 177 239 201 57.2 21.6 1 75.0-125 J6 J6 17.4 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 17 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 17 of 21 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 18 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 18 of 21 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:55 19 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1762808 08/06/24 15:58 19 of 21 ANALYTICAL REPORT August 09, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1764261 Samples Received:08/06/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: August 09, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 1 of 16 August 09, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 1 of 16 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 SP-446-080524 L1764261-01 5 SP-447-080524 L1764261-02 6 SP-448-080524 L1764261-03 7 SP-449-080524 L1764261-04 8 SP-450-080524 L1764261-05 9 SP-DUP-080524 L1764261-06 10 Qc: Quality Control Summary 11 Total Solids by Method 2540 G-2011 11 Metals (ICP) by Method 6010B 12 Gl: Glossary of Terms 14 Al: Accreditations & Locations 15 Sc: Sample Chain of Custody 16 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 2 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 2 of 16 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-446-080524 L1764261-01 Solid Annie Matzke 08/05/24 10:30 08/06/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2337728 1 08/07/24 11:22 08/07/24 11:35 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2337765 1 08/08/24 06:50 08/08/24 16:16 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-447-080524 L1764261-02 Solid Annie Matzke 08/05/24 10:40 08/06/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2337728 1 08/07/24 11:22 08/07/24 11:35 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2337765 1 08/08/24 06:50 08/08/24 16:18 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-448-080524 L1764261-03 Solid Annie Matzke 08/05/24 12:30 08/06/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2337728 1 08/07/24 11:22 08/07/24 11:35 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2337775 1 08/07/24 08:27 08/08/24 11:25 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time SP-449-080524 L1764261-04 Solid Annie Matzke 08/05/24 12:40 08/06/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2337728 1 08/07/24 11:22 08/07/24 11:35 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2337765 1 08/08/24 06:50 08/08/24 16:19 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-450-080524 L1764261-05 Solid Annie Matzke 08/05/24 12:50 08/06/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2337728 1 08/07/24 11:22 08/07/24 11:35 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2337765 1 08/08/24 06:50 08/08/24 16:21 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-080524 L1764261-06 Solid Annie Matzke 08/05/24 13:20 08/06/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2337728 1 08/07/24 11:22 08/07/24 11:35 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2337765 1 08/08/24 06:50 08/08/24 16:23 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 3 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 3 of 16 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 4 of 16 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 4 of 16 SAMPLE RESULTS - 01 L1764261 SP-446-080524 Collected date/time: 08/05/24 10:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.7 1 08/07/2024 11:35 WG2337728 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.0 0.559 2.16 1 08/08/2024 16:16 WG2337765 Lead 258 0.224 0.540 1 08/08/2024 16:16 WG2337765 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 5 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 5 of 16 SAMPLE RESULTS - 02 L1764261 SP-447-080524 Collected date/time: 08/05/24 10:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.5 1 08/07/2024 11:35 WG2337728 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.0 0.548 2.12 1 08/08/2024 16:18 WG2337765 Lead 184 0.220 0.529 1 08/08/2024 16:18 WG2337765 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 6 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 6 of 16 SAMPLE RESULTS - 03 L1764261 SP-448-080524 Collected date/time: 08/05/24 12:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.6 1 08/07/2024 11:35 WG2337728 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.70 0.542 2.09 1 08/08/2024 11:25 WG2337775 Lead 156 0.218 0.523 1 08/08/2024 11:25 WG2337775 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 7 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 7 of 16 SAMPLE RESULTS - 04 L1764261 SP-449-080524 Collected date/time: 08/05/24 12:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.1 1 08/07/2024 11:35 WG2337728 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.89 0.545 2.10 1 08/08/2024 16:19 WG2337765 Lead 225 0.219 0.526 1 08/08/2024 16:19 WG2337765 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 8 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 8 of 16 SAMPLE RESULTS - 05 L1764261 SP-450-080524 Collected date/time: 08/05/24 12:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.2 1 08/07/2024 11:35 WG2337728 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.3 0.544 2.10 1 08/08/2024 16:21 WG2337765 Lead 290 0.218 0.525 1 08/08/2024 16:21 WG2337765 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 9 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 9 of 16 SAMPLE RESULTS - 06 L1764261 SP-DUP-080524 Collected date/time: 08/05/24 13:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.3 1 08/07/2024 11:35 WG2337728 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.7 0.543 2.10 1 08/08/2024 16:23 WG2337765 Lead 363 0.218 0.524 1 08/08/2024 16:23 WG2337765 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 10 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 10 of 16 QUALITY CONTROL SUMMARYWG2337728 Total Solids by Method 2540 G-2011 L1764261-01,02,03,04,05,06 Method Blank (MB) (MB) R4104079-1 08/07/24 11:35 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1764077-01 Original Sample (OS) • Duplicate (DUP) (OS) L1764077-01 08/07/24 11:35 • (DUP) R4104079-3 08/07/24 11:35 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 85.5 83.3 1 2.64 10 Laboratory Control Sample (LCS) (LCS) R4104079-2 08/07/24 11:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 11 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 11 of 16 QUALITY CONTROL SUMMARYWG2337765 Metals (ICP) by Method 6010B L1764261-01,02,04,05,06 Method Blank (MB) (MB) R4104589-1 08/08/24 15:36 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4104589-2 08/08/24 15:38 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 96.8 96.8 80.0-120 Lead 100 100 100 80.0-120 L1763554-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1763554-01 08/08/24 15:40 • (MS) R4104589-5 08/08/24 15:45 • (MSD) R4104589-6 08/08/24 15:46 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 101 2.69 73.8 78.9 70.5 75.6 1 75.0-125 J6 6.65 20 Lead 101 23.8 97.7 103 73.3 78.7 1 75.0-125 J6 5.41 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 12 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 12 of 16 QUALITY CONTROL SUMMARYWG2337775 Metals (ICP) by Method 6010B L1764261-03 Method Blank (MB) (MB) R4104360-1 08/08/24 09:54 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4104360-2 08/08/24 09:57 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 107 107 80.0-120 Lead 100 108 108 80.0-120 L1763539-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1763539-01 08/08/24 10:00 • (MS) R4104360-5 08/08/24 10:08 • (MSD) R4104360-6 08/08/24 10:11 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 119 7.90 128 132 100 104 1 75.0-125 3.51 20 Lead 119 38.5 136 150 81.7 93.2 1 75.0-125 9.63 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 13 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 13 of 16 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 14 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 14 of 16 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 09:11 15 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1764261 08/09/24 14:34 15 of 16 ANALYTICAL REPORT August 17, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1767352 Samples Received:08/14/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: August 17, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 1 of 18 August 19, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 1 of 18 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 CS-160-081224 L1767352-01 6 CS-161-081224 L1767352-02 7 CS-162-081224 L1767352-03 8 CS-163-081224 L1767352-04 9 DUP-16 L1767352-05 10 CS-164-081324 L1767352-06 11 CS-165-081324 L1767352-07 12 CS-166-081324 L1767352-08 13 Qc: Quality Control Summary 14 Total Solids by Method 2540 G-2011 14 Metals (ICP) by Method 6010B 15 Gl: Glossary of Terms 16 Al: Accreditations & Locations 17 Sc: Sample Chain of Custody 18 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 2 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 2 of 18 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-160-081224 L1767352-01 Solid Annie Matzke 08/12/24 11:00 08/14/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2343350 1 08/15/24 09:31 08/15/24 09:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2343886 1 08/16/24 05:13 08/16/24 20:18 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time CS-161-081224 L1767352-02 Solid Annie Matzke 08/12/24 11:20 08/14/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2343350 1 08/15/24 09:31 08/15/24 09:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2343886 1 08/16/24 05:13 08/16/24 20:19 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time CS-162-081224 L1767352-03 Solid Annie Matzke 08/12/24 11:36 08/14/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2343350 1 08/15/24 09:31 08/15/24 09:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2343886 1 08/16/24 05:13 08/16/24 20:24 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time CS-163-081224 L1767352-04 Solid Annie Matzke 08/12/24 11:45 08/14/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2343350 1 08/15/24 09:31 08/15/24 09:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2343886 1 08/16/24 05:13 08/16/24 20:26 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-16 L1767352-05 Solid Annie Matzke 08/12/24 10:30 08/14/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2343350 1 08/15/24 09:31 08/15/24 09:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2343886 1 08/16/24 05:13 08/16/24 20:28 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time CS-164-081324 L1767352-06 Solid Annie Matzke 08/13/24 12:40 08/14/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2343350 1 08/15/24 09:31 08/15/24 09:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2343886 1 08/16/24 05:13 08/16/24 20:30 MAP Mt. Juliet, TN Collected by Collected date/time Received date/time CS-165-081324 L1767352-07 Solid Annie Matzke 08/13/24 13:00 08/14/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2343350 1 08/15/24 09:31 08/15/24 09:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2343886 1 08/16/24 05:13 08/16/24 20:31 MAP Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 3 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 3 of 18 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-166-081324 L1767352-08 Solid Annie Matzke 08/13/24 13:20 08/14/24 12:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2343350 1 08/15/24 09:31 08/15/24 09:44 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2343886 1 08/16/24 05:13 08/16/24 20:33 MAP Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 4 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 4 of 18 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 5 of 18 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 5 of 18 SAMPLE RESULTS - 01 L1767352 CS-160-081224 Collected date/time: 08/12/24 11:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.0 1 08/15/2024 09:44 WG2343350 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 6.77 0.551 2.13 1 08/16/2024 20:18 WG2343886 Lead 37.9 0.221 0.532 1 08/16/2024 20:18 WG2343886 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 6 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 6 of 18 SAMPLE RESULTS - 02 L1767352 CS-161-081224 Collected date/time: 08/12/24 11:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.4 1 08/15/2024 09:44 WG2343350 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.0 0.543 2.10 1 08/16/2024 20:19 WG2343886 Lead 47.1 0.218 0.524 1 08/16/2024 20:19 WG2343886 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 7 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 7 of 18 SAMPLE RESULTS - 03 L1767352 CS-162-081224 Collected date/time: 08/12/24 11:36 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.0 1 08/15/2024 09:44 WG2343350 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 6.59 0.557 2.15 1 08/16/2024 20:24 WG2343886 Lead 22.8 0.224 0.537 1 08/16/2024 20:24 WG2343886 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 8 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 8 of 18 SAMPLE RESULTS - 04 L1767352 CS-163-081224 Collected date/time: 08/12/24 11:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.7 1 08/15/2024 09:44 WG2343350 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 6.33 0.553 2.14 1 08/16/2024 20:26 WG2343886 Lead 30.3 0.222 0.534 1 08/16/2024 20:26 WG2343886 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 9 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 9 of 18 SAMPLE RESULTS - 05 L1767352 DUP-16 Collected date/time: 08/12/24 10:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.2 1 08/15/2024 09:44 WG2343350 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 4.45 0.550 2.12 1 08/16/2024 20:28 WG2343886 Lead 23.3 0.221 0.531 1 08/16/2024 20:28 WG2343886 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 10 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 10 of 18 SAMPLE RESULTS - 06 L1767352 CS-164-081324 Collected date/time: 08/13/24 12:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.8 1 08/15/2024 09:44 WG2343350 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.48 0.597 2.31 1 08/16/2024 20:30 WG2343886 Lead 36.3 0.240 0.576 1 08/16/2024 20:30 WG2343886 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 11 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 11 of 18 SAMPLE RESULTS - 07 L1767352 CS-165-081324 Collected date/time: 08/13/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.2 1 08/15/2024 09:44 WG2343350 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.85 0.608 2.35 1 08/16/2024 20:31 WG2343886 Lead 42.6 0.244 0.587 1 08/16/2024 20:31 WG2343886 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 12 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 12 of 18 SAMPLE RESULTS - 08 L1767352 CS-166-081324 Collected date/time: 08/13/24 13:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.1 1 08/15/2024 09:44 WG2343350 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.75 0.601 2.32 1 08/16/2024 20:33 WG2343886 Lead 89.2 0.241 0.580 1 08/16/2024 20:33 WG2343886 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 13 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 13 of 18 QUALITY CONTROL SUMMARYWG2343350 Total Solids by Method 2540 G-2011 L1767352-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R4107614-1 08/15/24 09:44 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1766715-40 Original Sample (OS) • Duplicate (DUP) (OS) L1766715-40 08/15/24 09:44 • (DUP) R4107614-3 08/15/24 09:44 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 90.9 85.9 1 5.69 10 Laboratory Control Sample (LCS) (LCS) R4107614-2 08/15/24 09:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 14 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 14 of 18 QUALITY CONTROL SUMMARYWG2343886 Metals (ICP) by Method 6010B L1767352-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R4108068-1 08/16/24 19:43 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4108068-2 08/16/24 19:45 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 97.0 97.0 80.0-120 Lead 100 97.1 97.1 80.0-120 L1767358-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1767358-02 08/16/24 19:46 • (MS) R4108068-5 08/16/24 19:52 • (MSD) R4108068-6 08/16/24 19:53 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 114 15.7 101 89.9 75.2 65.1 1 75.0-125 J6 12.0 20 Lead 114 408 401 371 0.000 0.000 1 75.0-125 J6 J6 7.58 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 15 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 15 of 18 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 16 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 16 of 18 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/17/24 17:07 17 of 18 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1767352 08/19/24 08:24 17 of 18 ANALYTICAL REPORT September 02, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1769453 Samples Received:08/20/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: September 02, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 1 of 16 September 03, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 1 of 16 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 CS-167_081424 L1769453-01 5 CS-168_081624 L1769453-02 6 CS-169_081624 L1769453-03 7 CS-170_081624 L1769453-04 8 DUP-17_081624 L1769453-05 9 SP-129_081624 L1769453-06 10 Qc: Quality Control Summary 11 Total Solids by Method 2540 G-2011 11 Metals (ICP) by Method 6010B 12 Gl: Glossary of Terms 14 Al: Accreditations & Locations 15 Sc: Sample Chain of Custody 16 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 2 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 2 of 16 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-167_081424 L1769453-01 Solid Annie Matzke 08/14/24 13:00 08/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2347482 1 08/22/24 09:01 08/22/24 09:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2348547 1 08/23/24 07:55 08/23/24 23:31 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-168_081624 L1769453-02 Solid Annie Matzke 08/16/24 10:00 08/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2347482 1 08/22/24 09:01 08/22/24 09:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2348547 1 08/23/24 07:55 08/23/24 23:32 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-169_081624 L1769453-03 Solid Annie Matzke 08/16/24 11:30 08/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2347482 1 08/22/24 09:01 08/22/24 09:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2348547 1 08/23/24 07:55 08/23/24 23:34 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time CS-170_081624 L1769453-04 Solid Annie Matzke 08/16/24 12:14 08/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2347482 1 08/22/24 09:01 08/22/24 09:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2348547 1 08/23/24 07:55 08/23/24 23:39 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-17_081624 L1769453-05 Solid Annie Matzke 08/16/24 13:00 08/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2347482 1 08/22/24 09:01 08/22/24 09:08 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2348547 1 08/23/24 07:55 08/23/24 23:41 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-129_081624 L1769453-06 Waste Annie Matzke 08/16/24 12:50 08/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Preparation by Method 1311 WG2348970 1 08/26/24 13:35 08/26/24 13:35 JWS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351445 1 09/02/24 01:21 09/02/24 07:40 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 3 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 3 of 16 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 4 of 16 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 4 of 16 SAMPLE RESULTS - 01 L1769453 CS-167_081424 Collected date/time: 08/14/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.0 1 08/22/2024 09:08 WG2347482 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.74 0.602 2.33 1 08/23/2024 23:31 WG2348547 Lead 47.0 0.242 0.581 1 08/23/2024 23:31 WG2348547 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 5 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 5 of 16 SAMPLE RESULTS - 02 L1769453 CS-168_081624 Collected date/time: 08/16/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.6 1 08/22/2024 09:08 WG2347482 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.9 0.591 2.28 1 08/23/2024 23:32 WG2348547 Lead 233 0.237 0.571 1 08/23/2024 23:32 WG2348547 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 6 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 6 of 16 SAMPLE RESULTS - 03 L1769453 CS-169_081624 Collected date/time: 08/16/24 11:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.0 1 08/22/2024 09:08 WG2347482 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.4 0.602 2.33 1 08/23/2024 23:34 WG2348547 Lead 106 0.242 0.581 1 08/23/2024 23:34 WG2348547 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 7 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 7 of 16 SAMPLE RESULTS - 04 L1769453 CS-170_081624 Collected date/time: 08/16/24 12:14 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.8 1 08/22/2024 09:08 WG2347482 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.65 0.611 2.36 1 08/23/2024 23:39 WG2348547 Lead 32.5 0.245 0.590 1 08/23/2024 23:39 WG2348547 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 8 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 8 of 16 SAMPLE RESULTS - 05 L1769453 DUP-17_081624 Collected date/time: 08/16/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.0 1 08/22/2024 09:08 WG2347482 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.48 0.609 2.35 1 08/23/2024 23:41 WG2348547 Lead 31.8 0.245 0.588 1 08/23/2024 23:41 WG2348547 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 9 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 9 of 16 SAMPLE RESULTS - 06 L1769453 SP-129_081624 Collected date/time: 08/16/24 12:50 Preparation by Method 1311 Result Qualifier Prep Batch Analyte date / time TCLP Extraction -8/26/2024 1:35:00 PM WG2348970 Initial pH 8.47 8/26/2024 1:35:00 PM WG2348970 Final pH 5.85 8/26/2024 1:35:00 PM WG2348970 Metals (ICP) by Method 6010B Result Qualifier RDL Limit Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Arsenic ND 0.100 5 1 09/02/2024 07:40 WG2351445 Lead ND 0.100 5 1 09/02/2024 07:40 WG2351445 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 10 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 10 of 16 QUALITY CONTROL SUMMARYWG2347482 Total Solids by Method 2540 G-2011 L1769453-01,02,03,04,05 Method Blank (MB) (MB) R4110364-1 08/22/24 09:08 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1769453-03 Original Sample (OS) • Duplicate (DUP) (OS) L1769453-03 08/22/24 09:08 • (DUP) R4110364-3 08/22/24 09:08 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 86.0 86.4 1 0.395 10 Laboratory Control Sample (LCS) (LCS) R4110364-2 08/22/24 09:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 11 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 11 of 16 QUALITY CONTROL SUMMARYWG2348547 Metals (ICP) by Method 6010B L1769453-01,02,03,04,05 Method Blank (MB) (MB) R4111154-1 08/23/24 22:57 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic 0.605 J 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4111154-2 08/23/24 22:59 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 95.8 95.8 80.0-120 Lead 100 93.0 93.0 80.0-120 L1769572-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1769572-05 08/23/24 23:01 • (MS) R4111154-5 08/23/24 23:06 • (MSD) R4111154-6 08/23/24 23:08 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 107 7.79 106 106 91.5 91.4 1 75.0-125 0.139 20 Lead 107 44.4 136 156 85.6 105 1 75.0-125 13.9 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 12 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 12 of 16 QUALITY CONTROL SUMMARYWG2351445 Metals (ICP) by Method 6010B L1769453-06 Method Blank (MB) (MB) R4114553-1 09/02/24 07:27 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic U 0.0333 0.100 Lead U 0.0333 0.100 Laboratory Control Sample (LCS) (LCS) R4114553-2 09/02/24 07:29 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic 10.0 10.1 101 80.0-120 Lead 10.0 10.2 102 80.0-120 L1769447-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1769447-01 09/02/24 07:30 • (MS) R4114553-4 09/02/24 07:34 • (MSD) R4114553-5 09/02/24 07:35 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic 10.0 ND 9.89 10.1 98.9 101 1 75.0-125 1.65 20 Lead 10.0 ND 10.1 10.1 101 101 1 75.0-125 0.457 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 13 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 13 of 16 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 14 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 14 of 16 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/02/24 20:35 15 of 16 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1769453 09/03/24 08:42 15 of 16 ANALYTICAL REPORT September 01, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1770402 Samples Received:08/22/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: September 01, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 1 of 56 September 03, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 1 of 56 TABLE OF CONTENTSTABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 4 Cn: Case Narrative 9 Sr: Sample Results 10 CS-154-082124 L1770402-01 10 CS-155-082124 L1770402-02 11 CS-156-082124 L1770402-03 12 CS-171-081924 L1770402-04 13 CS-172451-081924 L1770402-05 14 SP-451-081924 L1770402-06 15 SP-452-081924 L1770402-07 16 SP-453-081924 L1770402-08 17 SP-454-081924 L1770402-09 18 SP-455-081924 L1770402-10 19 SP-456-081924 L1770402-11 20 SP-457-081924 L1770402-12 21 SP-458-081924 L1770402-13 22 SP-459-082024 L1770402-14 23 SP-460-082024 L1770402-15 24 SP-461-082024 L1770402-16 25 SP-462-082024 L1770402-17 26 SP-463-082024 L1770402-18 27 SP-464-082024 L1770402-19 28 SP-465-082024 L1770402-20 29 SP-466-082124 L1770402-21 30 SP-467-082124 L1770402-22 31 SP-468-082124 L1770402-23 32 SP-469-082124 L1770402-24 33 SP-470-082124 L1770402-25 34 SP-471-082124 L1770402-26 35 SP-472-082124 L1770402-27 36 SP-473-082124 L1770402-28 37 SP-474-082124 L1770402-29 38 SP-475-082124 L1770402-30 39 SP-DUP-33 L1770402-31 40 SP-DUP-34 L1770402-32 41 Qc: Quality Control Summary 42 Total Solids by Method 2540 G-2011 42 Metals (ICP) by Method 6010B 46 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 2 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 2 of 56 Gl: Glossary of Terms 51 Al: Accreditations & Locations 52 Sc: Sample Chain of Custody 53 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 3 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 3 of 56 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-154-082124 L1770402-01 Solid Annie Matzke 08/21/24 13:30 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350326 1 08/27/24 05:59 08/27/24 06:04 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:10 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-155-082124 L1770402-02 Solid Annie Matzke 08/21/24 14:00 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350326 1 08/27/24 05:59 08/27/24 06:04 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:22 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-156-082124 L1770402-03 Solid Annie Matzke 08/21/24 13:45 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350326 1 08/27/24 05:59 08/27/24 06:04 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:27 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-171-081924 L1770402-04 Solid Annie Matzke 08/19/24 10:00 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350326 1 08/27/24 05:59 08/27/24 06:04 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:28 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time CS-172451-081924 L1770402-05 Solid Annie Matzke 08/19/24 11:05 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350326 1 08/27/24 05:59 08/27/24 06:04 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:30 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-451-081924 L1770402-06 Solid Annie Matzke 08/19/24 12:06 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350326 1 08/27/24 05:59 08/27/24 06:04 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351391 1 08/30/24 08:17 08/30/24 19:37 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-452-081924 L1770402-07 Solid Annie Matzke 08/19/24 12:12 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350326 1 08/27/24 05:59 08/27/24 06:04 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:32 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 4 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 4 of 56 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-453-081924 L1770402-08 Solid Annie Matzke 08/19/24 12:19 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350327 1 08/27/24 05:51 08/27/24 05:56 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:33 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-454-081924 L1770402-09 Solid Annie Matzke 08/19/24 12:26 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350327 1 08/27/24 05:51 08/27/24 05:56 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:35 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-455-081924 L1770402-10 Solid Annie Matzke 08/19/24 12:32 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350327 1 08/27/24 05:51 08/27/24 05:56 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:37 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-456-081924 L1770402-11 Solid Annie Matzke 08/19/24 13:27 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350327 1 08/27/24 05:51 08/27/24 05:56 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:39 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-457-081924 L1770402-12 Solid Annie Matzke 08/19/24 13:36 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350327 1 08/27/24 05:51 08/27/24 05:56 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:40 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-458-081924 L1770402-13 Solid Annie Matzke 08/19/24 13:46 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350327 1 08/27/24 05:51 08/27/24 05:56 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:42 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-459-082024 L1770402-14 Solid Annie Matzke 08/20/24 11:05 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350327 1 08/27/24 05:51 08/27/24 05:56 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:47 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 5 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 5 of 56 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-460-082024 L1770402-15 Solid Annie Matzke 08/20/24 11:15 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350327 1 08/27/24 05:51 08/27/24 05:56 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:49 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-461-082024 L1770402-16 Solid Annie Matzke 08/20/24 11:54 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350327 1 08/27/24 05:51 08/27/24 05:56 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351364 1 08/29/24 07:09 08/29/24 14:50 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-462-082024 L1770402-17 Solid Annie Matzke 08/20/24 12:01 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350327 1 08/27/24 05:51 08/27/24 05:56 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351414 1 08/27/24 22:18 08/28/24 11:32 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-463-082024 L1770402-18 Solid Annie Matzke 08/20/24 12:14 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350328 1 08/26/24 13:27 08/26/24 13:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351414 1 08/27/24 22:18 08/28/24 11:34 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-464-082024 L1770402-19 Solid Annie Matzke 08/20/24 13:20 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350328 1 08/26/24 13:27 08/26/24 13:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351351 1 08/28/24 07:42 08/28/24 20:24 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-465-082024 L1770402-20 Solid Annie Matzke 08/20/24 13:27 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350328 1 08/26/24 13:27 08/26/24 13:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351351 1 08/28/24 07:42 08/28/24 20:29 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-466-082124 L1770402-21 Solid Annie Matzke 08/21/24 10:37 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350328 1 08/26/24 13:27 08/26/24 13:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351414 1 08/27/24 22:18 08/28/24 11:36 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 6 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 6 of 56 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-467-082124 L1770402-22 Solid Annie Matzke 08/21/24 10:46 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350328 1 08/26/24 13:27 08/26/24 13:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351351 1 08/28/24 07:42 08/28/24 20:31 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-468-082124 L1770402-23 Solid Annie Matzke 08/21/24 10:54 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350328 1 08/26/24 13:27 08/26/24 13:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351351 1 08/28/24 07:42 08/28/24 20:33 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-469-082124 L1770402-24 Solid Annie Matzke 08/21/24 11:02 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350328 1 08/26/24 13:27 08/26/24 13:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351351 1 08/28/24 07:42 08/28/24 20:35 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-470-082124 L1770402-25 Solid Annie Matzke 08/21/24 11:38 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350328 1 08/26/24 13:27 08/26/24 13:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351414 1 08/27/24 22:18 08/28/24 11:37 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-471-082124 L1770402-26 Solid Annie Matzke 08/21/24 11:46 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350328 1 08/26/24 13:27 08/26/24 13:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351351 1 08/28/24 07:42 08/28/24 20:36 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-472-082124 L1770402-27 Solid Annie Matzke 08/21/24 11:56 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350328 1 08/26/24 13:27 08/26/24 13:34 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351351 1 08/28/24 07:42 08/28/24 20:38 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-473-082124 L1770402-28 Solid Annie Matzke 08/21/24 12:06 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350330 1 08/26/24 13:20 08/26/24 13:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351353 1 08/30/24 07:51 08/31/24 13:50 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 7 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 7 of 56 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-474-082124 L1770402-29 Solid Annie Matzke 08/21/24 12:40 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350330 1 08/26/24 13:20 08/26/24 13:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351353 1 08/30/24 07:51 08/31/24 13:51 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-475-082124 L1770402-30 Solid Annie Matzke 08/21/24 12:48 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350330 1 08/26/24 13:20 08/26/24 13:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351353 1 08/30/24 07:51 08/31/24 13:53 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-33 L1770402-31 Solid Annie Matzke 08/20/24 13:00 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350330 1 08/26/24 13:20 08/26/24 13:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351353 1 08/30/24 07:51 08/31/24 13:58 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-34 L1770402-32 Solid Annie Matzke 08/21/24 13:00 08/22/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2350330 1 08/26/24 13:20 08/26/24 13:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2351353 1 08/30/24 07:51 08/31/24 14:00 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 8 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 8 of 56 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 9 of 56 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 9 of 56 SAMPLE RESULTS - 01 L1770402 CS-154-082124 Collected date/time: 08/21/24 13:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.6 1 08/27/2024 06:04 WG2350326 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.55 0.591 2.28 1 08/29/2024 14:10 WG2351364 Lead 40.5 0.237 0.571 1 08/29/2024 14:10 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 10 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 10 of 56 SAMPLE RESULTS - 02 L1770402 CS-155-082124 Collected date/time: 08/21/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.9 1 08/27/2024 06:04 WG2350326 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.2 0.552 2.13 1 08/29/2024 14:22 WG2351364 Lead 87.1 0.221 0.532 1 08/29/2024 14:22 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 11 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 11 of 56 SAMPLE RESULTS - 03 L1770402 CS-156-082124 Collected date/time: 08/21/24 13:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.3 1 08/27/2024 06:04 WG2350326 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.6 0.543 2.10 1 08/29/2024 14:27 WG2351364 Lead 82.2 0.218 0.524 1 08/29/2024 14:27 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 12 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 12 of 56 SAMPLE RESULTS - 04 L1770402 CS-171-081924 Collected date/time: 08/19/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.2 1 08/27/2024 06:04 WG2350326 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.1 0.581 2.24 1 08/29/2024 14:28 WG2351364 Lead 50.2 0.233 0.561 1 08/29/2024 14:28 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 13 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 13 of 56 SAMPLE RESULTS - 05 L1770402 CS-172451-081924 Collected date/time: 08/19/24 11:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.7 1 08/27/2024 06:04 WG2350326 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.0 0.584 2.25 1 08/29/2024 14:30 WG2351364 Lead 57.2 0.234 0.564 1 08/29/2024 14:30 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 14 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 14 of 56 SAMPLE RESULTS - 06 L1770402 SP-451-081924 Collected date/time: 08/19/24 12:06 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.4 1 08/27/2024 06:04 WG2350326 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.2 0.561 2.16 1 08/30/2024 19:37 WG2351391 Lead 235 0.225 0.541 1 08/30/2024 19:37 WG2351391 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 15 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 15 of 56 SAMPLE RESULTS - 07 L1770402 SP-452-081924 Collected date/time: 08/19/24 12:12 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.9 1 08/27/2024 06:04 WG2350326 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.2 0.564 2.18 1 08/29/2024 14:32 WG2351364 Lead 440 0.226 0.544 1 08/29/2024 14:32 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 16 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 16 of 56 SAMPLE RESULTS - 08 L1770402 SP-453-081924 Collected date/time: 08/19/24 12:19 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.3 1 08/27/2024 05:56 WG2350327 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.3 0.561 2.17 1 08/29/2024 14:33 WG2351364 Lead 255 0.225 0.542 1 08/29/2024 14:33 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 17 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 17 of 56 SAMPLE RESULTS - 09 L1770402 SP-454-081924 Collected date/time: 08/19/24 12:26 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.3 1 08/27/2024 05:56 WG2350327 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.4 0.561 2.17 1 08/29/2024 14:35 WG2351364 Lead 496 0.225 0.542 1 08/29/2024 14:35 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 18 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 18 of 56 SAMPLE RESULTS - 10 L1770402 SP-455-081924 Collected date/time: 08/19/24 12:32 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.2 1 08/27/2024 05:56 WG2350327 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.5 0.556 2.15 1 08/29/2024 14:37 WG2351364 Lead 574 0.223 0.537 1 08/29/2024 14:37 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 19 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 19 of 56 SAMPLE RESULTS - 11 L1770402 SP-456-081924 Collected date/time: 08/19/24 13:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.8 1 08/27/2024 05:56 WG2350327 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.8 0.558 2.16 1 08/29/2024 14:39 WG2351364 Lead 268 0.224 0.539 1 08/29/2024 14:39 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 20 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 20 of 56 SAMPLE RESULTS - 12 L1770402 SP-457-081924 Collected date/time: 08/19/24 13:36 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.0 1 08/27/2024 05:56 WG2350327 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.6 0.557 2.15 1 08/29/2024 14:40 WG2351364 Lead 556 0.224 0.538 1 08/29/2024 14:40 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 21 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 21 of 56 SAMPLE RESULTS - 13 L1770402 SP-458-081924 Collected date/time: 08/19/24 13:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.0 1 08/27/2024 05:56 WG2350327 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.3 0.563 2.17 1 08/29/2024 14:42 WG2351364 Lead 271 0.226 0.543 1 08/29/2024 14:42 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 22 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 22 of 56 SAMPLE RESULTS - 14 L1770402 SP-459-082024 Collected date/time: 08/20/24 11:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.4 1 08/27/2024 05:56 WG2350327 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.6 0.573 2.21 1 08/29/2024 14:47 WG2351364 Lead 151 0.230 0.553 1 08/29/2024 14:47 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 23 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 23 of 56 SAMPLE RESULTS - 15 L1770402 SP-460-082024 Collected date/time: 08/20/24 11:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.1 1 08/27/2024 05:56 WG2350327 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.0 0.562 2.17 1 08/29/2024 14:49 WG2351364 Lead 146 0.226 0.543 1 08/29/2024 14:49 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 24 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 24 of 56 SAMPLE RESULTS - 16 L1770402 SP-461-082024 Collected date/time: 08/20/24 11:54 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.1 1 08/27/2024 05:56 WG2350327 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.7 0.550 2.13 1 08/29/2024 14:50 WG2351364 Lead 256 0.221 0.531 1 08/29/2024 14:50 WG2351364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 25 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 25 of 56 SAMPLE RESULTS - 17 L1770402 SP-462-082024 Collected date/time: 08/20/24 12:01 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.9 1 08/27/2024 05:56 WG2350327 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.7 0.564 2.18 1 08/28/2024 11:32 WG2351414 Lead 146 0.226 0.544 1 08/28/2024 11:32 WG2351414 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 26 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 26 of 56 SAMPLE RESULTS - 18 L1770402 SP-463-082024 Collected date/time: 08/20/24 12:14 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.9 1 08/26/2024 13:34 WG2350328 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.2 0.564 2.18 1 08/28/2024 11:34 WG2351414 Lead 182 0.226 0.544 1 08/28/2024 11:34 WG2351414 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 27 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 27 of 56 SAMPLE RESULTS - 19 L1770402 SP-464-082024 Collected date/time: 08/20/24 13:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.2 1 08/26/2024 13:34 WG2350328 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.9 0.568 2.19 1 08/28/2024 20:24 WG2351351 Lead 375 0.228 0.548 1 08/28/2024 20:24 WG2351351 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 28 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 28 of 56 SAMPLE RESULTS - 20 L1770402 SP-465-082024 Collected date/time: 08/20/24 13:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.7 1 08/26/2024 13:34 WG2350328 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.0 0.553 2.13 1 08/28/2024 20:29 WG2351351 Lead 252 0.222 0.533 1 08/28/2024 20:29 WG2351351 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 29 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 29 of 56 SAMPLE RESULTS - 21 L1770402 SP-466-082124 Collected date/time: 08/21/24 10:37 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.3 1 08/26/2024 13:34 WG2350328 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.9 0.567 2.19 1 08/28/2024 11:36 WG2351414 Lead 129 0.228 0.547 1 08/28/2024 11:36 WG2351414 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 30 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 30 of 56 SAMPLE RESULTS - 22 L1770402 SP-467-082124 Collected date/time: 08/21/24 10:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.0 1 08/26/2024 13:34 WG2350328 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.3 0.576 2.22 1 08/28/2024 20:31 WG2351351 Lead 103 0.231 0.556 1 08/28/2024 20:31 WG2351351 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 31 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 31 of 56 SAMPLE RESULTS - 23 L1770402 SP-468-082124 Collected date/time: 08/21/24 10:54 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.3 1 08/26/2024 13:34 WG2350328 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 8.82 0.573 2.21 1 08/28/2024 20:33 WG2351351 Lead 103 0.230 0.554 1 08/28/2024 20:33 WG2351351 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 32 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 32 of 56 SAMPLE RESULTS - 24 L1770402 SP-469-082124 Collected date/time: 08/21/24 11:02 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.6 1 08/26/2024 13:34 WG2350328 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.2 0.572 2.21 1 08/28/2024 20:35 WG2351351 Lead 182 0.230 0.552 1 08/28/2024 20:35 WG2351351 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 33 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 33 of 56 SAMPLE RESULTS - 25 L1770402 SP-470-082124 Collected date/time: 08/21/24 11:38 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.6 1 08/26/2024 13:34 WG2350328 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.5 0.559 2.16 1 08/28/2024 11:37 WG2351414 Lead 183 0.225 0.540 1 08/28/2024 11:37 WG2351414 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 34 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 34 of 56 SAMPLE RESULTS - 26 L1770402 SP-471-082124 Collected date/time: 08/21/24 11:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.1 1 08/26/2024 13:34 WG2350328 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 10.2 0.563 2.17 1 08/28/2024 20:36 WG2351351 Lead 138 0.226 0.543 1 08/28/2024 20:36 WG2351351 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 35 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 35 of 56 SAMPLE RESULTS - 27 L1770402 SP-472-082124 Collected date/time: 08/21/24 11:56 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.7 1 08/26/2024 13:34 WG2350328 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 7.82 0.571 2.21 1 08/28/2024 20:38 WG2351351 Lead 66.3 0.229 0.552 1 08/28/2024 20:38 WG2351351 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 36 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 36 of 56 SAMPLE RESULTS - 28 L1770402 SP-473-082124 Collected date/time: 08/21/24 12:06 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.6 1 08/26/2024 13:26 WG2350330 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.4 0.572 2.21 1 08/31/2024 13:50 WG2351353 Lead 121 0.230 0.552 1 08/31/2024 13:50 WG2351353 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 37 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 37 of 56 SAMPLE RESULTS - 29 L1770402 SP-474-082124 Collected date/time: 08/21/24 12:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.4 1 08/26/2024 13:26 WG2350330 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.7 0.549 2.12 1 08/31/2024 13:51 WG2351353 Lead 159 0.220 0.530 1 08/31/2024 13:51 WG2351353 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 38 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 38 of 56 SAMPLE RESULTS - 30 L1770402 SP-475-082124 Collected date/time: 08/21/24 12:48 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.1 1 08/26/2024 13:26 WG2350330 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.3 0.562 2.17 1 08/31/2024 13:53 WG2351353 Lead 178 0.226 0.543 1 08/31/2024 13:53 WG2351353 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 39 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 39 of 56 SAMPLE RESULTS - 31 L1770402 SP-DUP-33 Collected date/time: 08/20/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.8 1 08/26/2024 13:26 WG2350330 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.8 0.571 2.20 1 08/31/2024 13:58 WG2351353 Lead 126 0.229 0.551 1 08/31/2024 13:58 WG2351353 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 40 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 40 of 56 SAMPLE RESULTS - 32 L1770402 SP-DUP-34 Collected date/time: 08/21/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.4 1 08/26/2024 13:26 WG2350330 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.5 0.561 2.16 1 08/31/2024 14:00 WG2351353 Lead 278 0.225 0.541 1 08/31/2024 14:00 WG2351353 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 41 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 41 of 56 QUALITY CONTROL SUMMARYWG2350326 Total Solids by Method 2540 G-2011 L1770402-01,02,03,04,05,06,07 Method Blank (MB) (MB) R4112143-1 08/27/24 06:04 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1770402-01 Original Sample (OS) • Duplicate (DUP) (OS) L1770402-01 08/27/24 06:04 • (DUP) R4112143-3 08/27/24 06:04 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 87.6 87.5 1 0.137 10 Laboratory Control Sample (LCS) (LCS) R4112143-2 08/27/24 06:04 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 42 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 42 of 56 QUALITY CONTROL SUMMARYWG2350327 Total Solids by Method 2540 G-2011 L1770402-08,09,10,11,12,13,14,15,16,17 Method Blank (MB) (MB) R4112140-1 08/27/24 05:56 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1770402-11 Original Sample (OS) • Duplicate (DUP) (OS) L1770402-11 08/27/24 05:56 • (DUP) R4112140-3 08/27/24 05:56 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 92.8 92.5 1 0.286 10 Laboratory Control Sample (LCS) (LCS) R4112140-2 08/27/24 05:56 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 49.9 99.8 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 43 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 43 of 56 QUALITY CONTROL SUMMARYWG2350328 Total Solids by Method 2540 G-2011 L1770402-18,19,20,21,22,23,24,25,26,27 Method Blank (MB) (MB) R4111993-1 08/26/24 13:34 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1770402-21 Original Sample (OS) • Duplicate (DUP) (OS) L1770402-21 08/26/24 13:34 • (DUP) R4111993-3 08/26/24 13:34 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 91.3 91.5 1 0.155 10 Laboratory Control Sample (LCS) (LCS) R4111993-2 08/26/24 13:34 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 49.9 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 44 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 44 of 56 QUALITY CONTROL SUMMARYWG2350330 Total Solids by Method 2540 G-2011 L1770402-28,29,30,31,32 Method Blank (MB) (MB) R4111992-1 08/26/24 13:26 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1770402-31 Original Sample (OS) • Duplicate (DUP) (OS) L1770402-31 08/26/24 13:26 • (DUP) R4111992-3 08/26/24 13:26 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 90.8 90.6 1 0.215 10 Laboratory Control Sample (LCS) (LCS) R4111992-2 08/26/24 13:26 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 45 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 45 of 56 QUALITY CONTROL SUMMARYWG2351351 Metals (ICP) by Method 6010B L1770402-19,20,22,23,24,26,27 Method Blank (MB) (MB) R4113042-1 08/28/24 19:49 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4113042-2 08/28/24 19:51 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 100 100 80.0-120 Lead 100 99.4 99.4 80.0-120 L1770495-17 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1770495-17 08/28/24 19:53 • (MS) R4113042-5 08/28/24 19:58 • (MSD) R4113042-6 08/28/24 20:00 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 118 U 114 122 96.5 103 1 75.0-125 6.90 20 Lead 118 830 312 275 0.000 0.000 1 75.0-125 V V 12.4 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 46 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 46 of 56 QUALITY CONTROL SUMMARYWG2351353 Metals (ICP) by Method 6010B L1770402-28,29,30,31,32 Method Blank (MB) (MB) R4114353-1 08/31/24 13:38 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4114353-2 08/31/24 13:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 107 107 80.0-120 Lead 100 108 108 80.0-120 L1770503-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1770503-01 08/31/24 13:41 • (MS) R4114353-5 08/31/24 13:46 • (MSD) R4114353-6 08/31/24 13:48 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg %%%%% Arsenic 103 8.27 92.6 106 82.2 95.0 1 75.0-125 13.3 20 Lead 103 21.9 102 119 78.5 94.3 1 75.0-125 14.7 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 47 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 47 of 56 QUALITY CONTROL SUMMARYWG2351364 Metals (ICP) by Method 6010B L1770402-01,02,03,04,05,07,08,09,10,11,12,13,14,15,16 Method Blank (MB) (MB) R4113654-1 08/29/24 14:07 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead 0.220 J 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4113654-2 08/29/24 14:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 89.7 89.7 80.0-120 Lead 100 92.1 92.1 80.0-120 L1770402-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1770402-01 08/29/24 14:10 • (MS) R4113654-5 08/29/24 14:15 • (MSD) R4113654-6 08/29/24 14:17 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 114 7.55 120 115 98.7 93.9 1 75.0-125 4.68 20 Lead 114 40.5 158 153 103 99.0 1 75.0-125 2.62 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 48 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 48 of 56 QUALITY CONTROL SUMMARYWG2351391 Metals (ICP) by Method 6010B L1770402-06 Method Blank (MB) (MB) R4114268-1 08/30/24 18:50 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4114268-2 08/30/24 18:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 93.3 93.3 80.0-120 Lead 100 91.5 91.5 80.0-120 L1769843-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1769843-01 08/30/24 18:54 • (MS) R4114268-5 08/30/24 18:59 • (MSD) R4114268-6 08/30/24 19:01 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 115 8.14 85.5 97.4 67.0 77.3 1 75.0-125 J6 13.0 20 Lead 115 7.52 86.0 99.0 68.0 79.2 1 75.0-125 J6 14.0 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 49 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 49 of 56 QUALITY CONTROL SUMMARYWG2351414 Metals (ICP) by Method 6010B L1770402-17,18,21,25 Method Blank (MB) (MB) R4112813-1 08/28/24 10:52 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4112813-2 08/28/24 10:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 94.7 94.7 80.0-120 Lead 100 97.8 97.8 80.0-120 L1770495-41 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1770495-41 08/28/24 10:56 • (MS) R4112813-5 08/28/24 11:01 • (MSD) R4112813-6 08/28/24 11:02 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 120 0.699 126 111 105 92.2 1 75.0-125 13.0 20 Lead 120 10.2 142 125 110 96.1 1 75.0-125 12.4 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 50 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 50 of 56 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. V The sample concentration is too high to evaluate accurate spike recoveries. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 51 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 51 of 56 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/01/24 15:17 52 of 56 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1770402 09/03/24 08:42 52 of 56 ANALYTICAL REPORT September 11, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1773309 Samples Received:08/31/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: September 11, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 1 of 21 September 11, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 1 of 21 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SP-300-A_083024 L1773309-01 6 SP-368-A_083024 L1773309-02 7 SP-384-A_083024 L1773309-03 8 SP-385-A_083024 L1773309-04 9 SP-386-A_083024 L1773309-05 10 SP-387-A_083024 L1773309-06 11 SP-389-A_083024 L1773309-07 12 SP-389-B_083024 L1773309-08 13 SP-393-A_083024 L1773309-09 14 Qc: Quality Control Summary 15 Total Solids by Method 2540 G-2011 15 Metals (ICP) by Method 6010B 17 Gl: Glossary of Terms 19 Al: Accreditations & Locations 20 Sc: Sample Chain of Custody 21 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 2 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 2 of 21 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-300-A_083024 L1773309-01 Solid D. Salas 08/30/24 09:29 08/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2355315 1 09/03/24 16:04 09/03/24 16:09 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2356664 1 09/10/24 08:57 09/10/24 21:33 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-368-A_083024 L1773309-02 Solid D. Salas 08/30/24 11:23 08/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2355315 1 09/03/24 16:04 09/03/24 16:09 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2356672 1 09/10/24 17:11 09/11/24 02:31 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-384-A_083024 L1773309-03 Solid D. Salas 08/30/24 17:10 08/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2355316 1 09/04/24 11:14 09/04/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2356672 1 09/10/24 17:11 09/11/24 02:32 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-385-A_083024 L1773309-04 Solid D. Salas 08/30/24 16:25 08/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2355316 1 09/04/24 11:14 09/04/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2356672 1 09/10/24 17:11 09/11/24 02:34 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-386-A_083024 L1773309-05 Solid D. Salas 08/30/24 15:45 08/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2355316 1 09/04/24 11:14 09/04/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2356672 1 09/10/24 17:11 09/11/24 02:39 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-387-A_083024 L1773309-06 Solid D. Salas 08/30/24 14:30 08/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2355316 1 09/04/24 11:14 09/04/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2356672 1 09/10/24 17:11 09/11/24 02:41 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-389-A_083024 L1773309-07 Solid D. Salas 08/30/24 13:18 08/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2355316 1 09/04/24 11:14 09/04/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2356672 1 09/10/24 17:11 09/11/24 02:43 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 3 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 3 of 21 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-389-B_083024 L1773309-08 Solid D. Salas 08/30/24 13:41 08/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2355316 1 09/04/24 11:14 09/04/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2356672 1 09/10/24 17:11 09/11/24 02:45 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-393-A_083024 L1773309-09 Solid D. Salas 08/30/24 10:23 08/31/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2355316 1 09/04/24 11:14 09/04/24 11:26 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2356672 1 09/10/24 17:11 09/11/24 02:46 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 4 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 4 of 21 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 5 of 21 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 5 of 21 SAMPLE RESULTS - 01 L1773309 SP-300-A_083024 Collected date/time: 08/30/24 09:29 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.5 1 09/03/2024 16:09 WG2355315 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.0 0.554 2.14 1 09/10/2024 21:33 WG2356664 Lead 293 0.222 0.535 1 09/10/2024 21:33 WG2356664 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 6 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 6 of 21 SAMPLE RESULTS - 02 L1773309 SP-368-A_083024 Collected date/time: 08/30/24 11:23 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.2 1 09/03/2024 16:09 WG2355315 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.5 0.568 2.19 1 09/11/2024 02:31 WG2356672 Lead 361 0.228 0.548 1 09/11/2024 02:31 WG2356672 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 7 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 7 of 21 SAMPLE RESULTS - 03 L1773309 SP-384-A_083024 Collected date/time: 08/30/24 17:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.9 1 09/04/2024 11:26 WG2355316 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.8 0.558 2.15 1 09/11/2024 02:32 WG2356672 Lead 494 0.224 0.538 1 09/11/2024 02:32 WG2356672 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 8 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 8 of 21 SAMPLE RESULTS - 04 L1773309 SP-385-A_083024 Collected date/time: 08/30/24 16:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.3 1 09/04/2024 11:26 WG2355316 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.7 0.555 2.14 1 09/11/2024 02:34 WG2356672 Lead 293 0.223 0.536 1 09/11/2024 02:34 WG2356672 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 9 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 9 of 21 SAMPLE RESULTS - 05 L1773309 SP-386-A_083024 Collected date/time: 08/30/24 15:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.2 1 09/04/2024 11:26 WG2355316 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.3 0.556 2.15 1 09/11/2024 02:39 WG2356672 Lead 412 0.223 0.536 1 09/11/2024 02:39 WG2356672 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 10 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 10 of 21 SAMPLE RESULTS - 06 L1773309 SP-387-A_083024 Collected date/time: 08/30/24 14:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.6 1 09/04/2024 11:26 WG2355316 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.9 0.553 2.14 1 09/11/2024 02:41 WG2356672 Lead 308 0.222 0.534 1 09/11/2024 02:41 WG2356672 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 11 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 11 of 21 SAMPLE RESULTS - 07 L1773309 SP-389-A_083024 Collected date/time: 08/30/24 13:18 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.8 1 09/04/2024 11:26 WG2355316 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.6 0.558 2.16 1 09/11/2024 02:43 WG2356672 Lead 377 0.224 0.539 1 09/11/2024 02:43 WG2356672 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 12 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 12 of 21 SAMPLE RESULTS - 08 L1773309 SP-389-B_083024 Collected date/time: 08/30/24 13:41 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.1 1 09/04/2024 11:26 WG2355316 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.6 0.568 2.19 1 09/11/2024 02:45 WG2356672 Lead 365 0.228 0.549 1 09/11/2024 02:45 WG2356672 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 13 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 13 of 21 SAMPLE RESULTS - 09 L1773309 SP-393-A_083024 Collected date/time: 08/30/24 10:23 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.3 1 09/04/2024 11:26 WG2355316 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.8 0.567 2.19 1 09/11/2024 02:46 WG2356672 Lead 281 0.228 0.548 1 09/11/2024 02:46 WG2356672 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 14 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 14 of 21 QUALITY CONTROL SUMMARYWG2355315 Total Solids by Method 2540 G-2011 L1773309-01,02 Method Blank (MB) (MB) R4115114-1 09/03/24 16:09 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1771020-03 Original Sample (OS) • Duplicate (DUP) (OS) L1771020-03 09/03/24 16:09 • (DUP) R4115114-3 09/03/24 16:09 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 99.2 99.3 1 0.0852 10 Laboratory Control Sample (LCS) (LCS) R4115114-2 09/03/24 16:09 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 15 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 15 of 21 QUALITY CONTROL SUMMARYWG2355316 Total Solids by Method 2540 G-2011 L1773309-03,04,05,06,07,08,09 Method Blank (MB) (MB) R4115732-1 09/04/24 11:26 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1773480-06 Original Sample (OS) • Duplicate (DUP) (OS) L1773480-06 09/04/24 11:26 • (DUP) R4115732-3 09/04/24 11:26 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 95.9 96.1 1 0.163 10 Laboratory Control Sample (LCS) (LCS) R4115732-2 09/04/24 11:26 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 16 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 16 of 21 QUALITY CONTROL SUMMARYWG2356664 Metals (ICP) by Method 6010B L1773309-01 Method Blank (MB) (MB) R4118090-1 09/10/24 21:12 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4118090-2 09/10/24 21:14 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 89.9 89.9 80.0-120 Lead 100 89.3 89.3 80.0-120 L1773128-42 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1773128-42 09/10/24 21:15 • (MS) R4118090-5 09/10/24 21:21 • (MSD) R4118090-6 09/10/24 21:22 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 111 6.88 116 115 98.3 97.6 1 75.0-125 0.642 20 Lead 111 11.9 118 118 95.7 95.5 1 75.0-125 0.218 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 17 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 17 of 21 QUALITY CONTROL SUMMARYWG2356672 Metals (ICP) by Method 6010B L1773309-02,03,04,05,06,07,08,09 Method Blank (MB) (MB) R4118165-1 09/11/24 02:18 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4118165-2 09/11/24 02:20 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 94.8 94.8 80.0-120 Lead 100 94.9 94.9 80.0-120 L1773480-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1773480-06 09/11/24 02:22 • (MS) R4118165-5 09/11/24 02:27 • (MSD) R4118165-6 09/11/24 02:29 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 104 1.05 94.4 96.6 89.5 91.6 1 75.0-125 2.27 20 Lead 104 5.86 104 106 94.0 95.7 1 75.0-125 1.67 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 18 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 18 of 21 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 19 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 19 of 21 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 09:19 20 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1773309 09/11/24 14:33 20 of 21 ANALYTICAL REPORT September 14, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1775569 Samples Received:09/07/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: September 14, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 1 of 20 September 16, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 1 of 20 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SP-278-A_090624 L1775569-01 6 SP-278-B_090624 L1775569-02 7 SP-285-C-A_090624 L1775569-03 8 SP-285-C-B_090624 L1775569-04 9 SP-354-A_090624 L1775569-05 10 SP-420-A_090624 L1775569-06 11 SP-455-A_090624 L1775569-07 12 SP-457-A_090624 L1775569-08 13 Qc: Quality Control Summary 14 Total Solids by Method 2540 G-2011 14 Metals (ICP) by Method 6010B 16 Gl: Glossary of Terms 17 Al: Accreditations & Locations 18 Sc: Sample Chain of Custody 19 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 2 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 2 of 20 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-278-A_090624 L1775569-01 Solid D. Salas 09/06/24 12:03 09/07/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2358807 1 09/09/24 15:54 09/09/24 16:02 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2360219 1 09/13/24 18:09 09/14/24 10:22 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-278-B_090624 L1775569-02 Solid D. Salas 09/06/24 12:17 09/07/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2358807 1 09/09/24 15:54 09/09/24 16:02 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2360219 1 09/13/24 18:09 09/14/24 10:23 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-285-C-A_090624 L1775569-03 Solid D. Salas 09/05/24 16:05 09/07/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2358808 1 09/10/24 08:42 09/10/24 08:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2360219 1 09/13/24 18:09 09/14/24 10:25 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-285-C-B_090624 L1775569-04 Solid D. Salas 09/05/24 16:27 09/07/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2358808 1 09/10/24 08:42 09/10/24 08:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2360219 1 09/13/24 18:09 09/14/24 10:27 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-354-A_090624 L1775569-05 Solid D. Salas 09/05/24 14:35 09/07/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2358808 1 09/10/24 08:42 09/10/24 08:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2360219 1 09/13/24 18:09 09/14/24 10:28 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-420-A_090624 L1775569-06 Solid D. Salas 09/03/24 10:35 09/07/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2358808 1 09/10/24 08:42 09/10/24 08:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2360219 1 09/13/24 18:09 09/14/24 10:30 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-455-A_090624 L1775569-07 Solid D. Salas 09/06/24 10:46 09/07/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2358808 1 09/10/24 08:42 09/10/24 08:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2360219 1 09/13/24 18:09 09/14/24 10:32 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 3 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 3 of 20 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-457-A_090624 L1775569-08 Solid D. Salas 09/06/24 10:06 09/07/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2358808 1 09/10/24 08:42 09/10/24 08:49 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2360219 1 09/13/24 18:09 09/14/24 10:33 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 4 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 4 of 20 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 5 of 20 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 5 of 20 SAMPLE RESULTS - 01 L1775569 SP-278-A_090624 Collected date/time: 09/06/24 12:03 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.5 1 09/09/2024 16:02 WG2358807 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.8 0.573 2.21 1 09/14/2024 10:22 WG2360219 Lead 215 0.230 0.553 1 09/14/2024 10:22 WG2360219 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 6 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 6 of 20 SAMPLE RESULTS - 02 L1775569 SP-278-B_090624 Collected date/time: 09/06/24 12:17 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.1 1 09/09/2024 16:02 WG2358807 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.9 0.556 2.15 1 09/14/2024 10:23 WG2360219 Lead 364 0.223 0.537 1 09/14/2024 10:23 WG2360219 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 7 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 7 of 20 SAMPLE RESULTS - 03 L1775569 SP-285-C-A_090624 Collected date/time: 09/05/24 16:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.2 1 09/10/2024 08:49 WG2358808 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.4 0.568 2.19 1 09/14/2024 10:25 WG2360219 Lead 363 0.228 0.548 1 09/14/2024 10:25 WG2360219 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 8 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 8 of 20 SAMPLE RESULTS - 04 L1775569 SP-285-C-B_090624 Collected date/time: 09/05/24 16:27 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.6 1 09/10/2024 08:49 WG2358808 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.9 0.572 2.21 1 09/14/2024 10:27 WG2360219 Lead 483 0.230 0.552 1 09/14/2024 10:27 WG2360219 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 9 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 9 of 20 SAMPLE RESULTS - 05 L1775569 SP-354-A_090624 Collected date/time: 09/05/24 14:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.4 1 09/10/2024 08:49 WG2358808 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.6 0.555 2.14 1 09/14/2024 10:28 WG2360219 Lead 410 0.223 0.535 1 09/14/2024 10:28 WG2360219 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 10 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 10 of 20 SAMPLE RESULTS - 06 L1775569 SP-420-A_090624 Collected date/time: 09/03/24 10:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.2 1 09/10/2024 08:49 WG2358808 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.7 0.550 2.12 1 09/14/2024 10:30 WG2360219 Lead 312 0.221 0.531 1 09/14/2024 10:30 WG2360219 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 11 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 11 of 20 SAMPLE RESULTS - 07 L1775569 SP-455-A_090624 Collected date/time: 09/06/24 10:46 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.1 1 09/10/2024 08:49 WG2358808 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.5 0.550 2.12 1 09/14/2024 10:32 WG2360219 Lead 342 0.221 0.531 1 09/14/2024 10:32 WG2360219 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 12 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 12 of 20 SAMPLE RESULTS - 08 L1775569 SP-457-A_090624 Collected date/time: 09/06/24 10:06 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.0 1 09/10/2024 08:49 WG2358808 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.7 0.557 2.15 1 09/14/2024 10:33 WG2360219 Lead 288 0.224 0.538 1 09/14/2024 10:33 WG2360219 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 13 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 13 of 20 QUALITY CONTROL SUMMARYWG2358807 Total Solids by Method 2540 G-2011 L1775569-01,02 Method Blank (MB) (MB) R4117567-1 09/09/24 16:02 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1775567-01 Original Sample (OS) • Duplicate (DUP) (OS) L1775567-01 09/09/24 16:02 • (DUP) R4117567-3 09/09/24 16:02 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 79.2 77.0 1 2.85 10 Laboratory Control Sample (LCS) (LCS) R4117567-2 09/09/24 16:02 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 14 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 14 of 20 QUALITY CONTROL SUMMARYWG2358808 Total Solids by Method 2540 G-2011 L1775569-03,04,05,06,07,08 Method Blank (MB) (MB) R4117841-1 09/10/24 08:49 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1775569-05 Original Sample (OS) • Duplicate (DUP) (OS) L1775569-05 09/10/24 08:49 • (DUP) R4117841-3 09/10/24 08:49 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 93.4 92.4 1 1.09 10 Laboratory Control Sample (LCS) (LCS) R4117841-2 09/10/24 08:49 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 15 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 15 of 20 QUALITY CONTROL SUMMARYWG2360219 Metals (ICP) by Method 6010B L1775569-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R4119855-1 09/14/24 09:59 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4119855-2 09/14/24 10:00 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 102 102 80.0-120 Lead 100 98.7 98.7 80.0-120 L1775546-15 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1775546-15 09/14/24 10:02 • (MS) R4119855-5 09/14/24 10:07 • (MSD) R4119855-6 09/14/24 10:09 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 113 108 233 226 111 104 1 75.0-125 3.03 20 Lead 113 85.4 202 203 103 104 1 75.0-125 0.710 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 16 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 16 of 20 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 17 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 17 of 20 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/14/24 17:27 18 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1775569 09/16/24 08:30 18 of 20 ANALYTICAL REPORT October 02, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1777614 Samples Received:09/13/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: October 02, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 1 of 34 October 02, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 1 of 34 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-221-A_0981024 L1777614-01 7 SP-222-A_0981024 L1777614-02 8 SP-223-A_0981124 L1777614-03 9 SP-224-A_0981124 L1777614-04 10 SP-225-A_0981124 L1777614-05 11 SP-226-A_0981124 L1777614-06 12 SP-DUP-36 L1777614-07 13 SP--B_0981124 L1777614-08 14 SP-345-A_0980924 L1777614-09 15 SP-346-A_0980924 L1777614-10 16 SP-349-A_0980924 L1777614-11 17 SP-350-A_0980924 L1777614-12 18 SP-350-B_0980924 L1777614-13 19 SP-379-A_0981024 L1777614-14 20 SP-380-A_0981024 L1777614-15 21 SP-421-A_0981024 L1777614-16 22 SP-DUP-35 L1777614-17 23 SP-364-A_0980924 L1777614-18 24 Qc: Quality Control Summary 25 Total Solids by Method 2540 G-2011 25 Metals (ICP) by Method 6010B 29 Gl: Glossary of Terms 31 Al: Accreditations & Locations 32 Sc: Sample Chain of Custody 33 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 2 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 2 of 34 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-221-A_0981024 L1777614-01 Solid D. Salas 09/10/24 09:30 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364025 1 09/18/24 06:52 09/18/24 07:01 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:21 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-222-A_0981024 L1777614-02 Solid D. Salas 09/10/24 08:50 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364025 1 09/18/24 06:52 09/18/24 07:01 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:24 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-223-A_0981124 L1777614-03 Solid D. Salas 09/11/24 13:56 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364025 1 09/18/24 06:52 09/18/24 07:01 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:32 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-224-A_0981124 L1777614-04 Solid D. Salas 09/11/24 13:44 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364025 1 09/18/24 06:52 09/18/24 07:01 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:35 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-225-A_0981124 L1777614-05 Solid D. Salas 09/11/24 13:10 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364025 1 09/18/24 06:52 09/18/24 07:01 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:38 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-226-A_0981124 L1777614-06 Solid D. Salas 09/11/24 13:51 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364026 1 09/18/24 09:35 09/18/24 09:43 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:41 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-36 L1777614-07 Solid D. Salas 09/11/24 13:05 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364027 1 09/18/24 11:39 09/18/24 11:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:44 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 3 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 3 of 34 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP--B_0981124 L1777614-08 Solid D. Salas 09/11/24 13:00 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364027 1 09/18/24 11:39 09/18/24 11:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:47 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-345-A_0980924 L1777614-09 Solid D. Salas 09/09/24 14:45 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364027 1 09/18/24 11:39 09/18/24 11:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368748 1 10/02/24 08:17 10/02/24 11:55 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-346-A_0980924 L1777614-10 Solid D. Salas 09/09/24 15:10 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364027 1 09/18/24 11:39 09/18/24 11:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368748 1 10/02/24 08:17 10/02/24 11:45 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-349-A_0980924 L1777614-11 Solid D. Salas 09/09/24 15:40 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364027 1 09/18/24 11:39 09/18/24 11:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:49 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-350-A_0980924 L1777614-12 Solid D. Salas 09/09/24 10:20 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364027 1 09/18/24 11:39 09/18/24 11:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:52 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-350-B_0980924 L1777614-13 Solid D. Salas 09/09/24 10:35 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364027 1 09/18/24 11:39 09/18/24 11:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:55 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-379-A_0981024 L1777614-14 Solid D. Salas 09/10/24 13:35 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364027 1 09/18/24 11:39 09/18/24 11:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:58 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 4 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 4 of 34 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-380-A_0981024 L1777614-15 Solid D. Salas 09/10/24 13:10 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364027 1 09/18/24 11:39 09/18/24 11:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 19:06 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-421-A_0981024 L1777614-16 Solid D. Salas 09/10/24 10:30 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364027 1 09/18/24 11:39 09/18/24 11:54 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 19:09 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-35 L1777614-17 Solid D. Salas 09/10/24 10:35 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364028 1 09/18/24 07:25 09/18/24 07:30 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 19:12 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-364-A_0980924 L1777614-18 Solid D. Salas 09/09/24 13:30 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2364028 1 09/18/24 07:25 09/18/24 07:30 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2364755 1 09/22/24 09:15 09/23/24 18:04 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 5 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 5 of 34 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 6 of 34 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 6 of 34 SAMPLE RESULTS - 01 L1777614 SP-221-A_0981024 Collected date/time: 09/10/24 09:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.0 1 09/18/2024 07:01 WG2364025 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.1 0.557 2.15 1 09/23/2024 18:21 WG2364755 Lead 360 0.224 0.538 1 09/23/2024 18:21 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 7 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 7 of 34 SAMPLE RESULTS - 02 L1777614 SP-222-A_0981024 Collected date/time: 09/10/24 08:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.7 1 09/18/2024 07:01 WG2364025 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.4 0.571 2.21 1 09/23/2024 18:24 WG2364755 Lead 277 0.229 0.551 1 09/23/2024 18:24 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 8 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 8 of 34 SAMPLE RESULTS - 03 L1777614 SP-223-A_0981124 Collected date/time: 09/11/24 13:56 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.3 1 09/18/2024 07:01 WG2364025 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 23.4 0.561 2.17 1 09/23/2024 18:32 WG2364755 Lead 461 0.225 0.542 1 09/23/2024 18:32 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 9 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 9 of 34 SAMPLE RESULTS - 04 L1777614 SP-224-A_0981124 Collected date/time: 09/11/24 13:44 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.1 1 09/18/2024 07:01 WG2364025 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.2 0.562 2.17 1 09/23/2024 18:35 WG2364755 Lead 404 0.226 0.543 1 09/23/2024 18:35 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 10 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 10 of 34 SAMPLE RESULTS - 05 L1777614 SP-225-A_0981124 Collected date/time: 09/11/24 13:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.1 1 09/18/2024 07:01 WG2364025 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.5 0.556 2.15 1 09/23/2024 18:38 WG2364755 Lead 403 0.223 0.537 1 09/23/2024 18:38 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 11 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 11 of 34 SAMPLE RESULTS - 06 L1777614 SP-226-A_0981124 Collected date/time: 09/11/24 13:51 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.9 1 09/18/2024 09:43 WG2364026 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.1 0.552 2.13 1 09/23/2024 18:41 WG2364755 Lead 289 0.222 0.533 1 09/23/2024 18:41 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 12 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 12 of 34 SAMPLE RESULTS - 07 L1777614 SP-DUP-36 Collected date/time: 09/11/24 13:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.6 1 09/18/2024 11:54 WG2364027 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.3 0.559 2.16 1 09/23/2024 18:44 WG2364755 Lead 387 0.225 0.540 1 09/23/2024 18:44 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 13 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 13 of 34 SAMPLE RESULTS - 08 L1777614 SP--B_0981124 Collected date/time: 09/11/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.5 1 09/18/2024 11:54 WG2364027 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.4 0.560 2.16 1 09/23/2024 18:47 WG2364755 Lead 423 0.225 0.541 1 09/23/2024 18:47 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 14 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 14 of 34 SAMPLE RESULTS - 09 L1777614 SP-345-A_0980924 Collected date/time: 09/09/24 14:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.5 1 09/18/2024 11:54 WG2364027 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.6 0.548 2.12 1 10/02/2024 11:55 WG2368748 Lead 183 0.220 0.529 1 10/02/2024 11:55 WG2368748 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 15 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 15 of 34 SAMPLE RESULTS - 10 L1777614 SP-346-A_0980924 Collected date/time: 09/09/24 15:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.5 1 09/18/2024 11:54 WG2364027 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.0 0.548 2.12 1 10/02/2024 11:45 WG2368748 Lead 223 0.220 0.529 1 10/02/2024 11:45 WG2368748 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 16 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 16 of 34 SAMPLE RESULTS - 11 L1777614 SP-349-A_0980924 Collected date/time: 09/09/24 15:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.1 1 09/18/2024 11:54 WG2364027 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.9 0.544 2.10 1 09/23/2024 18:49 WG2364755 Lead 355 0.219 0.526 1 09/23/2024 18:49 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 17 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 17 of 34 SAMPLE RESULTS - 12 L1777614 SP-350-A_0980924 Collected date/time: 09/09/24 10:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.7 1 09/18/2024 11:54 WG2364027 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 22.9 0.547 2.11 1 09/23/2024 18:52 WG2364755 Lead 350 0.220 0.528 1 09/23/2024 18:52 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 18 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 18 of 34 SAMPLE RESULTS - 13 L1777614 SP-350-B_0980924 Collected date/time: 09/09/24 10:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 94.6 1 09/18/2024 11:54 WG2364027 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.0 0.548 2.11 1 09/23/2024 18:55 WG2364755 Lead 392 0.220 0.529 1 09/23/2024 18:55 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 19 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 19 of 34 SAMPLE RESULTS - 14 L1777614 SP-379-A_0981024 Collected date/time: 09/10/24 13:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.7 1 09/18/2024 11:54 WG2364027 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.7 0.553 2.14 1 09/23/2024 18:58 WG2364755 Lead 413 0.222 0.534 1 09/23/2024 18:58 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 20 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 20 of 34 SAMPLE RESULTS - 15 L1777614 SP-380-A_0981024 Collected date/time: 09/10/24 13:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.8 1 09/18/2024 11:54 WG2364027 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.2 0.558 2.16 1 09/23/2024 19:06 WG2364755 Lead 405 0.224 0.539 1 09/23/2024 19:06 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 21 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 21 of 34 SAMPLE RESULTS - 16 L1777614 SP-421-A_0981024 Collected date/time: 09/10/24 10:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.7 1 09/18/2024 11:54 WG2364027 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.2 0.553 2.13 1 09/23/2024 19:09 WG2364755 Lead 348 0.222 0.534 1 09/23/2024 19:09 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 22 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 22 of 34 SAMPLE RESULTS - 17 L1777614 SP-DUP-35 Collected date/time: 09/10/24 10:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.4 1 09/18/2024 07:30 WG2364028 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.5 0.554 2.14 1 09/23/2024 19:12 WG2364755 Lead 355 0.223 0.535 1 09/23/2024 19:12 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 23 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 23 of 34 SAMPLE RESULTS - 18 L1777614 SP-364-A_0980924 Collected date/time: 09/09/24 13:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.2 1 09/18/2024 07:30 WG2364028 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.7 0.568 2.19 1 09/23/2024 18:04 WG2364755 Lead 349 0.228 0.548 1 09/23/2024 18:04 WG2364755 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 24 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 24 of 34 QUALITY CONTROL SUMMARYWG2364025 Total Solids by Method 2540 G-2011 L1777614-01,02,03,04,05 Method Blank (MB) (MB) R4121531-1 09/18/24 07:01 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1777597-13 Original Sample (OS) • Duplicate (DUP) (OS) L1777597-13 09/18/24 07:01 • (DUP) R4121531-3 09/18/24 07:01 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 87.3 86.4 1 1.09 10 Laboratory Control Sample (LCS) (LCS) R4121531-2 09/18/24 07:01 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 25 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 25 of 34 QUALITY CONTROL SUMMARYWG2364026 Total Solids by Method 2540 G-2011 L1777614-06 Method Blank (MB) (MB) R4121548-1 09/18/24 09:43 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1777601-03 Original Sample (OS) • Duplicate (DUP) (OS) L1777601-03 09/18/24 09:43 • (DUP) R4121548-3 09/18/24 09:43 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 88.0 89.4 1 1.52 10 Laboratory Control Sample (LCS) (LCS) R4121548-2 09/18/24 09:43 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 26 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 26 of 34 QUALITY CONTROL SUMMARYWG2364027 Total Solids by Method 2540 G-2011 L1777614-07,08,09,10,11,12,13,14,15,16 Method Blank (MB) (MB) R4121558-1 09/18/24 11:54 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1777614-08 Original Sample (OS) • Duplicate (DUP) (OS) L1777614-08 09/18/24 11:54 • (DUP) R4121558-3 09/18/24 11:54 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 92.5 92.4 1 0.0949 10 Laboratory Control Sample (LCS) (LCS) R4121558-2 09/18/24 11:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 27 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 27 of 34 QUALITY CONTROL SUMMARYWG2364028 Total Solids by Method 2540 G-2011 L1777614-17,18 Method Blank (MB) (MB) R4121539-1 09/18/24 07:30 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1777614-18 Original Sample (OS) • Duplicate (DUP) (OS) L1777614-18 09/18/24 07:30 • (DUP) R4121539-3 09/18/24 07:30 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 91.2 91.7 1 0.532 10 Laboratory Control Sample (LCS) (LCS) R4121539-2 09/18/24 07:30 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 28 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 28 of 34 QUALITY CONTROL SUMMARYWG2364755 Metals (ICP) by Method 6010B L1777614-01,02,03,04,05,06,07,08,11,12,13,14,15,16,17,18 Method Blank (MB) (MB) R4123281-1 09/23/24 17:59 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4123281-2 09/23/24 18:01 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 96.0 96.0 80.0-120 Lead 100 94.0 94.0 80.0-120 L1777614-18 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1777614-18 09/23/24 18:04 • (MS) R4123281-5 09/23/24 18:12 • (MSD) R4123281-6 09/23/24 18:15 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 110 17.7 119 116 92.3 89.4 1 75.0-125 2.71 20 Lead 110 349 447 450 89.8 92.0 1 75.0-125 0.543 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 29 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 29 of 34 QUALITY CONTROL SUMMARYWG2368748 Metals (ICP) by Method 6010B L1777614-09,10 Method Blank (MB) (MB) R4127338-1 10/02/24 11:42 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4127338-2 10/02/24 11:43 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 95.8 95.8 80.0-120 Lead 100 95.2 95.2 80.0-120 L1777614-10 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1777614-10 10/02/24 11:45 • (MS) R4127338-5 10/02/24 11:50 • (MSD) R4127338-6 10/02/24 11:52 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 106 13.0 111 111 92.3 92.9 1 75.0-125 0.580 20 Lead 106 223 329 320 100 91.8 1 75.0-125 2.76 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 30 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 30 of 34 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 31 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 31 of 34 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:25 32 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1777614 10/02/24 14:32 32 of 34 ANALYTICAL REPORT September 27, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1778517 Samples Received:09/17/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: September 27, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 1 of 14 September 27, 2024 T. Alan Harvill Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 1 of 14 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 SP-135-A_091324 L1778517-01 5 SP-135-B_091324 L1778517-02 6 SP-DUP-37 L1778517-03 7 SP-135-C_091324 L1778517-04 8 Qc: Quality Control Summary 9 Total Solids by Method 2540 G-2011 9 Metals (ICP) by Method 6010B 11 Gl: Glossary of Terms 12 Al: Accreditations & Locations 13 Sc: Sample Chain of Custody 14 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 2 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 2 of 14 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-135-A_091324 L1778517-01 Solid AM/DS 09/13/24 11:09 09/17/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2365466 1 09/19/24 12:06 09/19/24 12:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2366418 1 09/26/24 06:22 09/27/24 08:52 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-135-B_091324 L1778517-02 Solid AM/DS 09/13/24 11:40 09/17/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2365466 1 09/19/24 12:06 09/19/24 12:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2366418 1 09/26/24 06:22 09/27/24 08:54 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-37 L1778517-03 Solid AM/DS 09/13/24 11:45 09/17/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2365466 1 09/19/24 12:06 09/19/24 12:16 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2366418 1 09/26/24 06:22 09/27/24 08:55 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-135-C_091324 L1778517-04 Solid AM/DS 09/13/24 12:11 09/17/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2365467 1 09/19/24 11:47 09/19/24 12:00 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2366418 1 09/26/24 06:22 09/27/24 09:00 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 3 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 3 of 14 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 4 of 14 T. Alan Harvill Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 4 of 14 SAMPLE RESULTS - 01 L1778517 SP-135-A_091324 Collected date/time: 09/13/24 11:09 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.1 1 09/19/2024 12:16 WG2365466 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.6 0.563 2.17 1 09/27/2024 08:52 WG2366418 Lead 243 0.226 0.543 1 09/27/2024 08:52 WG2366418 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 5 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 5 of 14 SAMPLE RESULTS - 02 L1778517 SP-135-B_091324 Collected date/time: 09/13/24 11:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.0 1 09/19/2024 12:16 WG2365466 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.1 0.557 2.15 1 09/27/2024 08:54 WG2366418 Lead 335 0.224 0.538 1 09/27/2024 08:54 WG2366418 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 6 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 6 of 14 SAMPLE RESULTS - 03 L1778517 SP-DUP-37 Collected date/time: 09/13/24 11:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.6 1 09/19/2024 12:16 WG2365466 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.9 0.565 2.18 1 09/27/2024 08:55 WG2366418 Lead 265 0.227 0.546 1 09/27/2024 08:55 WG2366418 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 7 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 7 of 14 SAMPLE RESULTS - 04 L1778517 SP-135-C_091324 Collected date/time: 09/13/24 12:11 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.5 1 09/19/2024 12:00 WG2365467 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.6 0.560 2.16 1 09/27/2024 09:00 WG2366418 Lead 315 0.225 0.541 1 09/27/2024 09:00 WG2366418 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 8 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 8 of 14 QUALITY CONTROL SUMMARYWG2365466 Total Solids by Method 2540 G-2011 L1778517-01,02,03 Method Blank (MB) (MB) R4122206-1 09/19/24 12:16 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00400 L1778516-11 Original Sample (OS) • Duplicate (DUP) (OS) L1778516-11 09/19/24 12:16 • (DUP) R4122206-3 09/19/24 12:16 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 95.7 96.1 1 0.481 10 Laboratory Control Sample (LCS) (LCS) R4122206-2 09/19/24 12:16 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 9 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 9 of 14 QUALITY CONTROL SUMMARYWG2365467 Total Solids by Method 2540 G-2011 L1778517-04 Method Blank (MB) (MB) R4122199-1 09/19/24 12:00 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1778568-04 Original Sample (OS) • Duplicate (DUP) (OS) L1778568-04 09/19/24 12:00 • (DUP) R4122199-3 09/19/24 12:00 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 85.3 86.6 1 1.51 10 Laboratory Control Sample (LCS) (LCS) R4122199-2 09/19/24 12:00 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 10 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 10 of 14 QUALITY CONTROL SUMMARYWG2366418 Metals (ICP) by Method 6010B L1778517-01,02,03,04 Method Blank (MB) (MB) R4125342-1 09/27/24 08:40 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead 0.222 J 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4125342-2 09/27/24 08:42 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 95.6 95.6 80.0-120 Lead 100 94.8 94.8 80.0-120 L1779099-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1779099-07 09/27/24 08:44 • (MS) R4125342-5 09/27/24 08:49 • (MSD) R4125342-6 09/27/24 08:50 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg %%%%% Arsenic 113 5.22 106 107 89.5 90.2 1 75.0-125 0.708 20 Lead 113 19.0 115 118 85.4 87.6 1 75.0-125 2.08 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 11 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 11 of 14 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 12 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 12 of 14 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 15:45 13 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1778517 09/27/24 16:53 13 of 14 ANALYTICAL REPORT September 28, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1780226 Samples Received:09/20/2024 Project Number:24001739 Description:Olympia Report To:Annie Matzke 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: September 28, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 1 of 21 September 30, 2024 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 1 of 21 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SP-235-A_091724 L1780226-01 6 SP-235-B_091724 L1780226-02 7 SP-239-A_091724 L1780226-03 8 SP-239-B_091724 L1780226-04 9 SP-241-A_091824 L1780226-05 10 SP-241-B_091824 L1780226-06 11 SP-242-A_091824 L1780226-07 12 SP-242-B_091824 L1780226-08 13 SP-147-A_091824 L1780226-09 14 Qc: Quality Control Summary 15 Total Solids by Method 2540 G-2011 15 Metals (ICP) by Method 6010B 17 Gl: Glossary of Terms 19 Al: Accreditations & Locations 20 Sc: Sample Chain of Custody 21 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 2 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 2 of 21 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-235-A_091724 L1780226-01 Solid Annie Matzke 09/17/24 09:43 09/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2368680 1 09/24/24 16:19 09/24/24 16:23 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368760 1 09/27/24 18:04 09/28/24 13:11 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-235-B_091724 L1780226-02 Solid Annie Matzke 09/17/24 09:51 09/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2368680 1 09/24/24 16:19 09/24/24 16:23 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368760 1 09/27/24 18:04 09/28/24 13:13 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-239-A_091724 L1780226-03 Solid Annie Matzke 09/17/24 11:00 09/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2368680 1 09/24/24 16:19 09/24/24 16:23 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368760 1 09/27/24 18:04 09/28/24 13:14 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-239-B_091724 L1780226-04 Solid Annie Matzke 09/17/24 11:20 09/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2368682 1 09/25/24 15:40 09/25/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368782 1 09/26/24 08:48 09/26/24 17:23 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-241-A_091824 L1780226-05 Solid Annie Matzke 09/18/24 11:15 09/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2368682 1 09/25/24 15:40 09/25/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368760 1 09/27/24 18:04 09/28/24 13:19 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-241-B_091824 L1780226-06 Solid Annie Matzke 09/18/24 11:38 09/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2368682 1 09/25/24 15:40 09/25/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368760 1 09/27/24 18:04 09/28/24 13:21 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-242-A_091824 L1780226-07 Solid Annie Matzke 09/18/24 12:30 09/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2368682 1 09/25/24 15:40 09/25/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368760 1 09/27/24 18:04 09/28/24 13:23 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 3 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 3 of 21 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-242-B_091824 L1780226-08 Solid Annie Matzke 09/18/24 12:47 09/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2368682 1 09/25/24 15:40 09/25/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368760 1 09/27/24 18:04 09/28/24 13:24 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-147-A_091824 L1780226-09 Solid Annie Matzke 09/18/24 15:07 09/20/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2368682 1 09/25/24 15:40 09/25/24 15:48 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2368782 1 09/26/24 08:48 09/26/24 16:56 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 4 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 4 of 21 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 5 of 21 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 5 of 21 SAMPLE RESULTS - 01 L1780226 SP-235-A_091724 Collected date/time: 09/17/24 09:43 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.9 1 09/24/2024 16:23 WG2368680 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.8 0.564 2.18 1 09/28/2024 13:11 WG2368760 Lead 209 0.226 0.544 1 09/28/2024 13:11 WG2368760 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 6 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 6 of 21 SAMPLE RESULTS - 02 L1780226 SP-235-B_091724 Collected date/time: 09/17/24 09:51 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.3 1 09/24/2024 16:23 WG2368680 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.5 0.561 2.17 1 09/28/2024 13:13 WG2368760 Lead 369 0.225 0.542 1 09/28/2024 13:13 WG2368760 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 7 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 7 of 21 SAMPLE RESULTS - 03 L1780226 SP-239-A_091724 Collected date/time: 09/17/24 11:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.8 1 09/24/2024 16:23 WG2368680 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.8 0.570 2.20 1 09/28/2024 13:14 WG2368760 Lead 227 0.229 0.550 1 09/28/2024 13:14 WG2368760 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 8 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 8 of 21 SAMPLE RESULTS - 04 L1780226 SP-239-B_091724 Collected date/time: 09/17/24 11:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.3 1 09/25/2024 15:48 WG2368682 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.6 0.567 2.19 1 09/26/2024 17:23 WG2368782 Lead 311 0.228 0.547 1 09/26/2024 17:23 WG2368782 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 9 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 9 of 21 SAMPLE RESULTS - 05 L1780226 SP-241-A_091824 Collected date/time: 09/18/24 11:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.3 1 09/25/2024 15:48 WG2368682 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.5 0.568 2.19 1 09/28/2024 13:19 WG2368760 Lead 179 0.228 0.548 1 09/28/2024 13:19 WG2368760 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 10 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 10 of 21 SAMPLE RESULTS - 06 L1780226 SP-241-B_091824 Collected date/time: 09/18/24 11:38 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.0 1 09/25/2024 15:48 WG2368682 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 11.8 0.563 2.17 1 09/28/2024 13:21 WG2368760 Lead 149 0.226 0.544 1 09/28/2024 13:21 WG2368760 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 11 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 11 of 21 SAMPLE RESULTS - 07 L1780226 SP-242-A_091824 Collected date/time: 09/18/24 12:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.2 1 09/25/2024 15:48 WG2368682 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.7 0.568 2.19 1 09/28/2024 13:23 WG2368760 Lead 309 0.228 0.548 1 09/28/2024 13:23 WG2368760 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 12 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 12 of 21 SAMPLE RESULTS - 08 L1780226 SP-242-B_091824 Collected date/time: 09/18/24 12:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.3 1 09/25/2024 15:48 WG2368682 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.0 0.567 2.19 1 09/28/2024 13:24 WG2368760 Lead 224 0.228 0.547 1 09/28/2024 13:24 WG2368760 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 13 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 13 of 21 SAMPLE RESULTS - 09 L1780226 SP-147-A_091824 Collected date/time: 09/18/24 15:07 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.0 1 09/25/2024 15:48 WG2368682 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 9.56 0.576 2.22 1 09/26/2024 16:56 WG2368782 Lead 122 J5 O1 0.231 0.556 1 09/26/2024 16:56 WG2368782 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 14 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 14 of 21 QUALITY CONTROL SUMMARYWG2368680 Total Solids by Method 2540 G-2011 L1780226-01,02,03 Method Blank (MB) (MB) R4123960-1 09/24/24 16:23 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00400 L1780098-05 Original Sample (OS) • Duplicate (DUP) (OS) L1780098-05 09/24/24 16:23 • (DUP) R4123960-3 09/24/24 16:23 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 87.0 86.9 1 0.135 10 Laboratory Control Sample (LCS) (LCS) R4123960-2 09/24/24 16:23 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 15 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 15 of 21 QUALITY CONTROL SUMMARYWG2368682 Total Solids by Method 2540 G-2011 L1780226-04,05,06,07,08,09 Method Blank (MB) (MB) R4124541-1 09/25/24 15:48 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1780226-09 Original Sample (OS) • Duplicate (DUP) (OS) L1780226-09 09/25/24 15:48 • (DUP) R4124541-3 09/25/24 15:48 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 90.0 93.4 1 3.72 10 Laboratory Control Sample (LCS) (LCS) R4124541-2 09/25/24 15:48 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 16 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 16 of 21 QUALITY CONTROL SUMMARYWG2368760 Metals (ICP) by Method 6010B L1780226-01,02,03,05,06,07,08 Method Blank (MB) (MB) R4125747-1 09/28/24 12:39 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead 0.213 J 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4125747-2 09/28/24 12:41 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 100 100 80.0-120 Lead 100 99.5 99.5 80.0-120 L1780161-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1780161-01 09/28/24 12:43 • (MS) R4125747-5 09/28/24 12:48 • (MSD) R4125747-6 09/28/24 12:49 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 107 5.25 109 111 97.0 99.5 1 75.0-125 2.43 20 Lead 107 17.7 112 123 88.1 99.1 1 75.0-125 9.99 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 17 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 17 of 21 QUALITY CONTROL SUMMARYWG2368782 Metals (ICP) by Method 6010B L1780226-04,09 Method Blank (MB) (MB) R4125062-1 09/26/24 16:53 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4125062-2 09/26/24 16:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 95.8 95.8 80.0-120 Lead 100 97.5 97.5 80.0-120 L1780226-09 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1780226-09 09/26/24 16:56 • (MS) R4125062-5 09/26/24 17:01 • (MSD) R4125062-6 09/26/24 17:03 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 111 9.56 114 111 93.6 91.1 1 75.0-125 2.52 20 Lead 111 122 271 292 134 153 1 75.0-125 J5 J5 7.49 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 18 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 18 of 21 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. O1 The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 19 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 19 of 21 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/28/24 16:15 20 of 21 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1780226 09/30/24 09:04 20 of 21 ANALYTICAL REPORT October 08, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1783157 Samples Received:09/28/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: October 08, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 1 of 33 October 08, 2024 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 1 of 33 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 SP-245_A_092024 L1783157-01 7 SP-245_B_092024 L1783157-02 8 SP-DUP-38 L1783157-03 9 SP-235_C_092324 L1783157-04 10 SP-244_A_092324 L1783157-05 11 SP-48_A_092524 L1783157-06 12 SP-266_A_092524 L1783157-07 13 SP-266_B_092524 L1783157-08 14 SP-DUP-39 L1783157-09 15 SP-140_A_092524 L1783157-10 16 SP-140_B_092524 L1783157-11 17 SP-327_A_092624 L1783157-12 18 SP-1_A_092724 L1783157-13 19 SP-1_B_092724 L1783157-14 20 SP-287_A_092724 L1783157-15 21 SP-288_A_092724 L1783157-16 22 SP-289_A_092724 L1783157-17 23 Qc: Quality Control Summary 24 Total Solids by Method 2540 G-2011 24 Metals (ICP) by Method 6010B 27 Gl: Glossary of Terms 29 Al: Accreditations & Locations 30 Sc: Sample Chain of Custody 31 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 2 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 2 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-245_A_092024 L1783157-01 Solid Annie Matzke 09/20/24 11:45 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374749 1 10/03/24 08:54 10/03/24 08:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 11:42 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-245_B_092024 L1783157-02 Solid Annie Matzke 09/20/24 12:00 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374749 1 10/03/24 08:54 10/03/24 08:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 11:43 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-38 L1783157-03 Solid Annie Matzke 09/20/24 12:30 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374749 1 10/03/24 08:54 10/03/24 08:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 11:45 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-235_C_092324 L1783157-04 Solid Annie Matzke 09/23/24 11:15 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374749 1 10/03/24 08:54 10/03/24 08:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 11:50 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-244_A_092324 L1783157-05 Solid Annie Matzke 09/23/24 14:00 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374749 1 10/03/24 08:54 10/03/24 08:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 11:51 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-48_A_092524 L1783157-06 Solid Annie Matzke 09/23/24 13:20 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374749 1 10/03/24 08:54 10/03/24 08:59 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 11:53 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-266_A_092524 L1783157-07 Solid Annie Matzke 09/25/24 09:20 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374750 1 10/03/24 09:04 10/03/24 09:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 11:55 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 3 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 3 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-266_B_092524 L1783157-08 Solid Annie Matzke 09/25/24 09:40 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374750 1 10/03/24 09:04 10/03/24 09:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 11:56 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-39 L1783157-09 Solid Annie Matzke 09/25/24 10:15 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374750 1 10/03/24 09:04 10/03/24 09:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 11:58 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-140_A_092524 L1783157-10 Solid Annie Matzke 09/25/24 15:00 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374750 1 10/03/24 09:04 10/03/24 09:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 12:00 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-140_B_092524 L1783157-11 Solid Annie Matzke 09/25/24 15:20 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374750 1 10/03/24 09:04 10/03/24 09:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 12:01 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-327_A_092624 L1783157-12 Solid Annie Matzke 09/26/24 11:00 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374750 1 10/03/24 09:04 10/03/24 09:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 11:33 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-1_A_092724 L1783157-13 Solid Annie Matzke 09/27/24 12:15 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374750 1 10/03/24 09:04 10/03/24 09:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375374 1 10/06/24 23:07 10/07/24 12:03 ZSA Mt. Juliet, TN Collected by Collected date/time Received date/time SP-1_B_092724 L1783157-14 Solid Annie Matzke 09/27/24 12:30 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374750 1 10/03/24 09:04 10/03/24 09:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375379 1 10/07/24 16:59 10/08/24 09:43 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 4 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 4 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-287_A_092724 L1783157-15 Solid Annie Matzke 09/27/24 13:15 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374750 1 10/03/24 09:04 10/03/24 09:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375379 1 10/07/24 16:59 10/08/24 09:45 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-288_A_092724 L1783157-16 Solid Annie Matzke 09/27/24 13:24 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374750 1 10/03/24 09:04 10/03/24 09:12 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375379 1 10/07/24 16:59 10/08/24 09:46 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-289_A_092724 L1783157-17 Solid Annie Matzke 09/27/24 13:40 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2374751 1 10/03/24 07:52 10/03/24 07:57 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2375379 1 10/07/24 16:59 10/08/24 09:48 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 5 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 5 of 33 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 6 of 33 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 6 of 33 SAMPLE RESULTS - 01 L1783157 SP-245_A_092024 Collected date/time: 09/20/24 11:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.0 1 10/03/2024 08:59 WG2374749 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.7 0.563 2.17 1 10/07/2024 11:42 WG2375374 Lead 242 0.226 0.544 1 10/07/2024 11:42 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 7 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 7 of 33 SAMPLE RESULTS - 02 L1783157 SP-245_B_092024 Collected date/time: 09/20/24 12:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.6 1 10/03/2024 08:59 WG2374749 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.2 0.559 2.16 1 10/07/2024 11:43 WG2375374 Lead 329 0.225 0.540 1 10/07/2024 11:43 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 8 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 8 of 33 SAMPLE RESULTS - 03 L1783157 SP-DUP-38 Collected date/time: 09/20/24 12:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.2 1 10/03/2024 08:59 WG2374749 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.9 0.562 2.17 1 10/07/2024 11:45 WG2375374 Lead 304 0.226 0.542 1 10/07/2024 11:45 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 9 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 9 of 33 SAMPLE RESULTS - 04 L1783157 SP-235_C_092324 Collected date/time: 09/23/24 11:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.8 1 10/03/2024 08:59 WG2374749 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.1 0.552 2.13 1 10/07/2024 11:50 WG2375374 Lead 260 0.222 0.533 1 10/07/2024 11:50 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 10 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 10 of 33 SAMPLE RESULTS - 05 L1783157 SP-244_A_092324 Collected date/time: 09/23/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.1 1 10/03/2024 08:59 WG2374749 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.7 0.556 2.15 1 10/07/2024 11:51 WG2375374 Lead 225 0.223 0.537 1 10/07/2024 11:51 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 11 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 11 of 33 SAMPLE RESULTS - 06 L1783157 SP-48_A_092524 Collected date/time: 09/23/24 13:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.0 1 10/03/2024 08:59 WG2374749 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.3 0.563 2.17 1 10/07/2024 11:53 WG2375374 Lead 146 0.226 0.543 1 10/07/2024 11:53 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 12 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 12 of 33 SAMPLE RESULTS - 07 L1783157 SP-266_A_092524 Collected date/time: 09/25/24 09:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.7 1 10/03/2024 09:12 WG2374750 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.2 0.565 2.18 1 10/07/2024 11:55 WG2375374 Lead 177 0.227 0.546 1 10/07/2024 11:55 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 13 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 13 of 33 SAMPLE RESULTS - 08 L1783157 SP-266_B_092524 Collected date/time: 09/25/24 09:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.4 1 10/03/2024 09:12 WG2374750 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.1 0.567 2.19 1 10/07/2024 11:56 WG2375374 Lead 218 0.228 0.547 1 10/07/2024 11:56 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 14 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 14 of 33 SAMPLE RESULTS - 09 L1783157 SP-DUP-39 Collected date/time: 09/25/24 10:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.2 1 10/03/2024 09:12 WG2374750 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.1 0.568 2.19 1 10/07/2024 11:58 WG2375374 Lead 183 0.228 0.548 1 10/07/2024 11:58 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 15 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 15 of 33 SAMPLE RESULTS - 10 L1783157 SP-140_A_092524 Collected date/time: 09/25/24 15:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.2 1 10/03/2024 09:12 WG2374750 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.5 0.568 2.19 1 10/07/2024 12:00 WG2375374 Lead 407 0.228 0.548 1 10/07/2024 12:00 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 16 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 16 of 33 SAMPLE RESULTS - 11 L1783157 SP-140_B_092524 Collected date/time: 09/25/24 15:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.3 1 10/03/2024 09:12 WG2374750 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 18.2 0.567 2.19 1 10/07/2024 12:01 WG2375374 Lead 371 0.228 0.547 1 10/07/2024 12:01 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 17 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 17 of 33 SAMPLE RESULTS - 12 L1783157 SP-327_A_092624 Collected date/time: 09/26/24 11:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.7 1 10/03/2024 09:12 WG2374750 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.2 0.571 2.20 1 10/07/2024 11:33 WG2375374 Lead 306 J5 0.229 0.551 1 10/07/2024 11:33 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 18 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 18 of 33 SAMPLE RESULTS - 13 L1783157 SP-1_A_092724 Collected date/time: 09/27/24 12:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.2 1 10/03/2024 09:12 WG2374750 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.0 0.562 2.17 1 10/07/2024 12:03 WG2375374 Lead 214 0.226 0.542 1 10/07/2024 12:03 WG2375374 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 19 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 19 of 33 SAMPLE RESULTS - 14 L1783157 SP-1_B_092724 Collected date/time: 09/27/24 12:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.5 1 10/03/2024 09:12 WG2374750 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.8 0.560 2.16 1 10/08/2024 09:43 WG2375379 Lead 364 0.225 0.541 1 10/08/2024 09:43 WG2375379 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 20 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 20 of 33 SAMPLE RESULTS - 15 L1783157 SP-287_A_092724 Collected date/time: 09/27/24 13:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.1 1 10/03/2024 09:12 WG2374750 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.1 0.569 2.20 1 10/08/2024 09:45 WG2375379 Lead 462 0.228 0.549 1 10/08/2024 09:45 WG2375379 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 21 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 21 of 33 SAMPLE RESULTS - 16 L1783157 SP-288_A_092724 Collected date/time: 09/27/24 13:24 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.2 1 10/03/2024 09:12 WG2374750 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.4 0.574 2.22 1 10/08/2024 09:46 WG2375379 Lead 386 0.231 0.554 1 10/08/2024 09:46 WG2375379 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 22 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 22 of 33 SAMPLE RESULTS - 17 L1783157 SP-289_A_092724 Collected date/time: 09/27/24 13:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.6 1 10/03/2024 07:57 WG2374751 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.9 0.554 2.14 1 10/08/2024 09:48 WG2375379 Lead 437 0.222 0.534 1 10/08/2024 09:48 WG2375379 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 23 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 23 of 33 QUALITY CONTROL SUMMARYWG2374749 Total Solids by Method 2540 G-2011 L1783157-01,02,03,04,05,06 Method Blank (MB) (MB) R4128009-1 10/03/24 08:59 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1783125-10 Original Sample (OS) • Duplicate (DUP) (OS) L1783125-10 10/03/24 08:59 • (DUP) R4128009-3 10/03/24 08:59 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 94.0 92.5 1 1.64 10 Laboratory Control Sample (LCS) (LCS) R4128009-2 10/03/24 08:59 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 24 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 24 of 33 QUALITY CONTROL SUMMARYWG2374750 Total Solids by Method 2540 G-2011 L1783157-07,08,09,10,11,12,13,14,15,16 Method Blank (MB) (MB) R4128016-1 10/03/24 09:12 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1783157-15 Original Sample (OS) • Duplicate (DUP) (OS) L1783157-15 10/03/24 09:12 • (DUP) R4128016-3 10/03/24 09:12 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 91.1 91.1 1 0.0819 10 Laboratory Control Sample (LCS) (LCS) R4128016-2 10/03/24 09:12 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 25 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 25 of 33 QUALITY CONTROL SUMMARYWG2374751 Total Solids by Method 2540 G-2011 L1783157-17 Method Blank (MB) (MB) R4127925-1 10/03/24 07:57 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1783176-02 Original Sample (OS) • Duplicate (DUP) (OS) L1783176-02 10/03/24 07:57 • (DUP) R4127925-3 10/03/24 07:57 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 92.5 92.8 1 0.290 10 Laboratory Control Sample (LCS) (LCS) R4127925-2 10/03/24 07:57 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 26 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 26 of 33 QUALITY CONTROL SUMMARYWG2375374 Metals (ICP) by Method 6010B L1783157-01,02,03,04,05,06,07,08,09,10,11,12,13 Method Blank (MB) (MB) R4129460-1 10/07/24 11:30 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4129460-2 10/07/24 11:32 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 95.7 95.7 80.0-120 Lead 100 91.9 91.9 80.0-120 L1783157-12 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1783157-12 10/07/24 11:33 • (MS) R4129460-5 10/07/24 11:38 • (MSD) R4129460-6 10/07/24 11:40 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 110 16.2 113 111 88.0 86.3 1 75.0-125 1.71 20 Lead 110 306 469 421 148 105 1 75.0-125 J5 10.7 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 27 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 27 of 33 QUALITY CONTROL SUMMARYWG2375379 Metals (ICP) by Method 6010B L1783157-14,15,16,17 Method Blank (MB) (MB) R4129890-1 10/08/24 08:59 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4129890-2 10/08/24 09:01 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 96.0 96.0 80.0-120 Lead 100 97.0 97.0 80.0-120 L1783144-30 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1783144-30 10/08/24 09:03 • (MS) R4129890-5 10/08/24 09:08 • (MSD) R4129890-6 10/08/24 09:09 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 2.78 96.5 96.9 93.7 94.1 1 75.0-125 0.351 20 Lead 100 25.4 121 123 96.0 98.0 1 75.0-125 1.64 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 28 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 28 of 33 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 29 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 29 of 33 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 14:05 30 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1783157 10/08/24 15:15 30 of 33 ANALYTICAL REPORT October 11, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1784979 Samples Received:10/03/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: October 11, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 1 of 24 October 11, 2024 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 1 of 24 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SP-7_A_100124 L1784979-01 6 SP-7_B_100124 L1784979-02 7 SP-13_A_100124 L1784979-03 8 SP-13_B_100124 L1784979-04 9 SP-13_C_100124 L1784979-05 10 SP-9_A_100124 L1784979-06 11 SP-9_B_100124 L1784979-07 12 SP-14_A_100124 L1784979-08 13 SP-14_B_100124 L1784979-09 14 SP-11_A_100124 L1784979-10 15 SP-DUP-40 L1784979-11 16 Qc: Quality Control Summary 17 Total Solids by Method 2540 G-2011 17 Metals (ICP) by Method 6010B 19 Gl: Glossary of Terms 21 Al: Accreditations & Locations 22 Sc: Sample Chain of Custody 23 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 2 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 2 of 24 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-7_A_100124 L1784979-01 Solid Annie Matzke 10/01/24 12:20 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377169 1 10/07/24 15:41 10/07/24 15:46 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376994 1 10/10/24 17:24 10/11/24 10:40 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-7_B_100124 L1784979-02 Solid Annie Matzke 10/01/24 12:35 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377169 1 10/07/24 15:41 10/07/24 15:46 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376994 1 10/10/24 17:24 10/11/24 10:45 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-13_A_100124 L1784979-03 Solid Annie Matzke 10/01/24 12:47 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377169 1 10/07/24 15:41 10/07/24 15:46 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376994 1 10/10/24 17:24 10/11/24 10:47 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-13_B_100124 L1784979-04 Solid Annie Matzke 10/01/24 13:00 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377169 1 10/07/24 15:41 10/07/24 15:46 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376994 1 10/10/24 17:24 10/11/24 10:49 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-13_C_100124 L1784979-05 Solid Annie Matzke 10/01/24 13:15 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377169 1 10/07/24 15:41 10/07/24 15:46 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376994 1 10/10/24 17:24 10/11/24 10:50 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-9_A_100124 L1784979-06 Solid Annie Matzke 10/01/24 13:33 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377169 1 10/07/24 15:41 10/07/24 15:46 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376994 1 10/10/24 17:24 10/11/24 10:52 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-9_B_100124 L1784979-07 Solid Annie Matzke 10/01/24 13:45 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377169 1 10/07/24 15:41 10/07/24 15:46 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376991 1 10/10/24 07:49 10/10/24 17:43 ZSA Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 3 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 3 of 24 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-14_A_100124 L1784979-08 Solid Annie Matzke 10/01/24 14:03 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377169 1 10/07/24 15:41 10/07/24 15:46 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376994 1 10/10/24 17:24 10/11/24 10:54 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-14_B_100124 L1784979-09 Solid Annie Matzke 10/01/24 14:17 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377170 1 10/07/24 15:31 10/07/24 15:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376994 1 10/10/24 17:24 10/11/24 10:55 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-11_A_100124 L1784979-10 Solid Annie Matzke 10/01/24 14:30 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377170 1 10/07/24 15:31 10/07/24 15:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376994 1 10/10/24 17:24 10/11/24 10:57 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-40 L1784979-11 Solid Annie Matzke 10/01/24 15:00 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2377170 1 10/07/24 15:31 10/07/24 15:40 CMB Mt. Juliet, TN Metals (ICP) by Method 6010B WG2376994 1 10/10/24 17:24 10/11/24 10:59 JTM Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 4 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 4 of 24 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 5 of 24 Darren Reeder Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 5 of 24 SAMPLE RESULTS - 01 L1784979 SP-7_A_100124 Collected date/time: 10/01/24 12:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.2 1 10/07/2024 15:46 WG2377169 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.4 0.574 2.22 1 10/11/2024 10:40 WG2376994 Lead 239 0.231 0.554 1 10/11/2024 10:40 WG2376994 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 6 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 6 of 24 SAMPLE RESULTS - 02 L1784979 SP-7_B_100124 Collected date/time: 10/01/24 12:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.9 1 10/07/2024 15:46 WG2377169 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.6 0.576 2.23 1 10/11/2024 10:45 WG2376994 Lead 227 0.231 0.556 1 10/11/2024 10:45 WG2376994 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 7 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 7 of 24 SAMPLE RESULTS - 03 L1784979 SP-13_A_100124 Collected date/time: 10/01/24 12:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.5 1 10/07/2024 15:46 WG2377169 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.0 0.560 2.16 1 10/11/2024 10:47 WG2376994 Lead 304 0.225 0.541 1 10/11/2024 10:47 WG2376994 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 8 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 8 of 24 SAMPLE RESULTS - 04 L1784979 SP-13_B_100124 Collected date/time: 10/01/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.1 1 10/07/2024 15:46 WG2377169 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.1 0.569 2.20 1 10/11/2024 10:49 WG2376994 Lead 266 0.228 0.549 1 10/11/2024 10:49 WG2376994 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 9 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 9 of 24 SAMPLE RESULTS - 05 L1784979 SP-13_C_100124 Collected date/time: 10/01/24 13:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.6 1 10/07/2024 15:46 WG2377169 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.9 0.572 2.21 1 10/11/2024 10:50 WG2376994 Lead 256 0.230 0.552 1 10/11/2024 10:50 WG2376994 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 10 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 10 of 24 SAMPLE RESULTS - 06 L1784979 SP-9_A_100124 Collected date/time: 10/01/24 13:33 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.8 1 10/07/2024 15:46 WG2377169 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.6 0.564 2.18 1 10/11/2024 10:52 WG2376994 Lead 187 0.227 0.545 1 10/11/2024 10:52 WG2376994 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 11 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 11 of 24 SAMPLE RESULTS - 07 L1784979 SP-9_B_100124 Collected date/time: 10/01/24 13:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.3 1 10/07/2024 15:46 WG2377169 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.8 0.567 2.19 1 10/10/2024 17:43 WG2376991 Lead 287 J6 0.228 0.548 1 10/10/2024 17:43 WG2376991 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 12 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 12 of 24 SAMPLE RESULTS - 08 L1784979 SP-14_A_100124 Collected date/time: 10/01/24 14:03 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.1 1 10/07/2024 15:46 WG2377169 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.1 0.569 2.20 1 10/11/2024 10:54 WG2376994 Lead 250 0.228 0.549 1 10/11/2024 10:54 WG2376994 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 13 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 13 of 24 SAMPLE RESULTS - 09 L1784979 SP-14_B_100124 Collected date/time: 10/01/24 14:17 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.9 1 10/07/2024 15:40 WG2377170 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.5 0.564 2.18 1 10/11/2024 10:55 WG2376994 Lead 291 0.226 0.544 1 10/11/2024 10:55 WG2376994 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 14 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 14 of 24 SAMPLE RESULTS - 10 L1784979 SP-11_A_100124 Collected date/time: 10/01/24 14:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.2 1 10/07/2024 15:40 WG2377170 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.7 0.574 2.22 1 10/11/2024 10:57 WG2376994 Lead 218 0.231 0.554 1 10/11/2024 10:57 WG2376994 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 15 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 15 of 24 SAMPLE RESULTS - 11 L1784979 SP-DUP-40 Collected date/time: 10/01/24 15:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.5 1 10/07/2024 15:40 WG2377170 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.9 0.572 2.21 1 10/11/2024 10:59 WG2376994 Lead 271 0.230 0.552 1 10/11/2024 10:59 WG2376994 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 16 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 16 of 24 QUALITY CONTROL SUMMARYWG2377169 Total Solids by Method 2540 G-2011 L1784979-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R4129724-1 10/07/24 15:46 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1784979-03 Original Sample (OS) • Duplicate (DUP) (OS) L1784979-03 10/07/24 15:46 • (DUP) R4129724-3 10/07/24 15:46 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 92.5 90.4 1 2.26 10 Laboratory Control Sample (LCS) (LCS) R4129724-2 10/07/24 15:46 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 17 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 17 of 24 QUALITY CONTROL SUMMARYWG2377170 Total Solids by Method 2540 G-2011 L1784979-09,10,11 Method Blank (MB) (MB) R4129722-1 10/07/24 15:40 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1784984-11 Original Sample (OS) • Duplicate (DUP) (OS) L1784984-11 10/07/24 15:40 • (DUP) R4129722-3 10/07/24 15:40 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 96.5 97.9 1 1.41 10 Laboratory Control Sample (LCS) (LCS) R4129722-2 10/07/24 15:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 18 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 18 of 24 QUALITY CONTROL SUMMARYWG2376991 Metals (ICP) by Method 6010B L1784979-07 Method Blank (MB) (MB) R4131248-1 10/10/24 17:39 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4131248-2 10/10/24 17:41 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 102 102 80.0-120 Lead 100 101 101 80.0-120 L1784979-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1784979-07 10/10/24 17:43 • (MS) R4131248-5 10/10/24 17:48 • (MSD) R4131248-6 10/10/24 17:50 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 110 16.8 107 112 82.5 86.5 1 75.0-125 4.02 20 Lead 110 287 346 392 54.5 96.4 1 75.0-125 J6 12.4 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 19 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 19 of 24 QUALITY CONTROL SUMMARYWG2376994 Metals (ICP) by Method 6010B L1784979-01,02,03,04,05,06,08,09,10,11 Method Blank (MB) (MB) R4131567-1 10/11/24 10:26 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4131567-2 10/11/24 10:27 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 103 103 80.0-120 Lead 100 97.2 97.2 80.0-120 L1785040-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1785040-01 10/11/24 10:29 • (MS) R4131567-5 10/11/24 10:34 • (MSD) R4131567-6 10/11/24 10:36 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 103 2.28 93.4 78.6 88.3 73.9 1 75.0-125 J6 17.2 20 Lead 103 3.07 91.3 76.9 85.5 71.6 1 75.0-125 J6 17.0 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 20 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 20 of 24 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 21 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 21 of 24 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 15:42 22 of 24 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1784979 10/11/24 16:31 22 of 24 ANALYTICAL REPORT October 16, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1785941 Samples Received:10/05/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: October 16, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 1 of 17 October 17, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 1 of 17 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 SP-134_A_100424 L1785941-01 5 SP-134_B_100424 L1785941-02 6 SP-228_A_100424 L1785941-03 7 SP-228_B_100424 L1785941-04 8 Qc: Quality Control Summary 9 Total Solids by Method 2540 G-2011 9 Metals (ICP) by Method 6010B 11 Gl: Glossary of Terms 13 Al: Accreditations & Locations 14 Sc: Sample Chain of Custody 15 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 2 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 2 of 17 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-134_A_100424 L1785941-01 Solid Annie Matzke 10/04/24 11:34 10/05/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2380153 1 10/11/24 10:11 10/11/24 10:29 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2380283 1 10/14/24 17:39 10/15/24 09:55 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-134_B_100424 L1785941-02 Solid Annie Matzke 10/04/24 11:42 10/05/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2380153 1 10/11/24 10:11 10/11/24 10:29 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2380283 1 10/14/24 17:39 10/15/24 09:56 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-228_A_100424 L1785941-03 Solid Annie Matzke 10/04/24 12:20 10/05/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2380153 1 10/11/24 10:11 10/11/24 10:29 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2380283 1 10/14/24 17:39 10/15/24 09:58 JTM Mt. Juliet, TN Collected by Collected date/time Received date/time SP-228_B_100424 L1785941-04 Solid Annie Matzke 10/04/24 12:40 10/05/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2380155 1 10/11/24 09:57 10/11/24 10:09 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2380288 1 10/15/24 17:45 10/16/24 10:57 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 3 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 3 of 17 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 4 of 17 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 4 of 17 SAMPLE RESULTS - 01 L1785941 SP-134_A_100424 Collected date/time: 10/04/24 11:34 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.1 1 10/11/2024 10:29 WG2380153 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.0 0.556 2.15 1 10/15/2024 09:55 WG2380283 Lead 321 0.223 0.537 1 10/15/2024 09:55 WG2380283 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 5 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 5 of 17 SAMPLE RESULTS - 02 L1785941 SP-134_B_100424 Collected date/time: 10/04/24 11:42 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.0 1 10/11/2024 10:29 WG2380153 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 16.5 0.557 2.15 1 10/15/2024 09:56 WG2380283 Lead 310 0.224 0.538 1 10/15/2024 09:56 WG2380283 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 6 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 6 of 17 SAMPLE RESULTS - 03 L1785941 SP-228_A_100424 Collected date/time: 10/04/24 12:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.4 1 10/11/2024 10:29 WG2380153 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.6 0.554 2.14 1 10/15/2024 09:58 WG2380283 Lead 246 0.223 0.535 1 10/15/2024 09:58 WG2380283 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 7 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 7 of 17 SAMPLE RESULTS - 04 L1785941 SP-228_B_100424 Collected date/time: 10/04/24 12:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.1 1 10/11/2024 10:09 WG2380155 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 14.4 0.568 2.19 1 10/16/2024 10:57 WG2380288 Lead 205 0.228 0.549 1 10/16/2024 10:57 WG2380288 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 8 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 8 of 17 QUALITY CONTROL SUMMARYWG2380153 Total Solids by Method 2540 G-2011 L1785941-01,02,03 Method Blank (MB) (MB) R4131812-1 10/11/24 10:29 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1785929-18 Original Sample (OS) • Duplicate (DUP) (OS) L1785929-18 10/11/24 10:29 • (DUP) R4131812-3 10/11/24 10:29 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 68.7 68.0 1 1.04 10 Laboratory Control Sample (LCS) (LCS) R4131812-2 10/11/24 10:29 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 9 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 9 of 17 QUALITY CONTROL SUMMARYWG2380155 Total Solids by Method 2540 G-2011 L1785941-04 Method Blank (MB) (MB) R4131810-1 10/11/24 10:09 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1785949-05 Original Sample (OS) • Duplicate (DUP) (OS) L1785949-05 10/11/24 10:09 • (DUP) R4131810-3 10/11/24 10:09 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 67.4 66.3 1 1.56 10 Laboratory Control Sample (LCS) (LCS) R4131810-2 10/11/24 10:09 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 10 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 10 of 17 QUALITY CONTROL SUMMARYWG2380283 Metals (ICP) by Method 6010B L1785941-01,02,03 Method Blank (MB) (MB) R4132857-1 10/15/24 09:35 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4132857-2 10/15/24 09:36 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 94.9 94.9 80.0-120 Lead 100 93.6 93.6 80.0-120 L1785974-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1785974-06 10/15/24 09:38 • (MS) R4132857-5 10/15/24 09:43 • (MSD) R4132857-6 10/15/24 09:45 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 6.32 94.3 96.5 88.0 90.2 1 75.0-125 2.31 20 Lead 100 21.2 120 114 98.7 92.5 1 75.0-125 5.34 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 11 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 11 of 17 QUALITY CONTROL SUMMARYWG2380288 Metals (ICP) by Method 6010B L1785941-04 Method Blank (MB) (MB) R4133414-1 10/16/24 10:38 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4133414-2 10/16/24 10:41 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 101 101 80.0-120 Lead 100 98.0 98.0 80.0-120 L1786019-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1786019-05 10/16/24 10:43 • (MS) R4133414-5 10/16/24 10:51 • (MSD) R4133414-6 10/16/24 10:54 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 100 2.38 93.9 99.0 91.6 96.6 1 75.0-125 5.21 20 Lead 100 6.71 99.6 104 92.9 97.5 1 75.0-125 4.51 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 12 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 12 of 17 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 13 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 13 of 17 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/16/24 14:09 14 of 17 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1785941 10/17/24 09:06 14 of 17 ANALYTICAL REPORT October 20, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1787617 Samples Received:10/10/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: October 20, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 1 of 27 October 21, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 1 of 27 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SP-240_A_100824 L1787617-01 6 SP-240_B_100824 L1787617-02 7 SP-243_A_100824 L1787617-03 8 SP-243_B_100824 L1787617-04 9 SP-243_C_100824 L1787617-05 10 SP-272_A_100824 L1787617-06 11 SP-272_B_100824 L1787617-07 12 SP-273_A_100824 L1787617-08 13 SP-273_B_100824 L1787617-09 14 SP-274_A_100824 L1787617-10 15 SP-274_B_100824 L1787617-11 16 SP-274_C_100824 L1787617-12 17 SP-DUP-41 L1787617-13 18 SP-DUP-42 L1787617-14 19 Qc: Quality Control Summary 20 Total Solids by Method 2540 G-2011 20 Metals (ICP) by Method 6010B 22 Gl: Glossary of Terms 24 Al: Accreditations & Locations 25 Sc: Sample Chain of Custody 26 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 2 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 2 of 27 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-240_A_100824 L1787617-01 Solid Annie Matzke 10/08/24 12:26 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381194 1 10/14/24 07:06 10/14/24 07:13 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381432 1 10/15/24 23:07 10/16/24 12:04 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-240_B_100824 L1787617-02 Solid Annie Matzke 10/08/24 12:35 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381194 1 10/14/24 07:06 10/14/24 07:13 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381432 1 10/15/24 23:07 10/16/24 12:06 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-243_A_100824 L1787617-03 Solid Annie Matzke 10/08/24 12:41 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381194 1 10/14/24 07:06 10/14/24 07:13 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:36 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-243_B_100824 L1787617-04 Solid Annie Matzke 10/08/24 12:47 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381194 1 10/14/24 07:06 10/14/24 07:13 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:37 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-243_C_100824 L1787617-05 Solid Annie Matzke 10/08/24 13:00 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381195 1 10/14/24 06:58 10/14/24 07:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:39 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-272_A_100824 L1787617-06 Solid Annie Matzke 10/08/24 14:00 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381195 1 10/14/24 06:58 10/14/24 07:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:44 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-272_B_100824 L1787617-07 Solid Annie Matzke 10/08/24 14:13 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381195 1 10/14/24 06:58 10/14/24 07:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:46 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 3 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 3 of 27 SAMPLE SUMMARY Collected by Collected date/time Received date/time SP-273_A_100824 L1787617-08 Solid Annie Matzke 10/08/24 14:20 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381195 1 10/14/24 06:58 10/14/24 07:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:47 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-273_B_100824 L1787617-09 Solid Annie Matzke 10/08/24 14:28 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381195 1 10/14/24 06:58 10/14/24 07:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:49 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-274_A_100824 L1787617-10 Solid Annie Matzke 10/08/24 14:40 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381195 1 10/14/24 06:58 10/14/24 07:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:51 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-274_B_100824 L1787617-11 Solid Annie Matzke 10/08/24 13:00 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381195 1 10/14/24 06:58 10/14/24 07:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:52 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-274_C_100824 L1787617-12 Solid Annie Matzke 10/08/24 13:15 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381195 1 10/14/24 06:58 10/14/24 07:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:54 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-41 L1787617-13 Solid Annie Matzke 10/08/24 13:15 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381195 1 10/14/24 06:58 10/14/24 07:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:56 DJS Mt. Juliet, TN Collected by Collected date/time Received date/time SP-DUP-42 L1787617-14 Solid Annie Matzke 10/08/24 13:30 10/10/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2381195 1 10/14/24 06:58 10/14/24 07:03 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2381404 1 10/18/24 19:57 10/19/24 17:27 DJS Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 4 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 4 of 27 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 5 of 27 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 5 of 27 SAMPLE RESULTS - 01 L1787617 SP-240_A_100824 Collected date/time: 10/08/24 12:26 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.2 1 10/14/2024 07:13 WG2381194 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 15.4 0.568 2.19 1 10/16/2024 12:04 WG2381432 Lead 210 0.228 0.548 1 10/16/2024 12:04 WG2381432 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 6 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 6 of 27 SAMPLE RESULTS - 02 L1787617 SP-240_B_100824 Collected date/time: 10/08/24 12:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.2 1 10/14/2024 07:13 WG2381194 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 19.2 0.568 2.19 1 10/16/2024 12:06 WG2381432 Lead 340 0.228 0.548 1 10/16/2024 12:06 WG2381432 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 7 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 7 of 27 SAMPLE RESULTS - 03 L1787617 SP-243_A_100824 Collected date/time: 10/08/24 12:41 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.5 1 10/14/2024 07:13 WG2381194 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 13.8 0.566 2.19 1 10/19/2024 17:36 WG2381404 Lead 239 0.227 0.547 1 10/19/2024 17:36 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 8 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 8 of 27 SAMPLE RESULTS - 04 L1787617 SP-243_B_100824 Collected date/time: 10/08/24 12:47 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.6 1 10/14/2024 07:13 WG2381194 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 23.8 0.560 2.16 1 10/19/2024 17:37 WG2381404 Lead 493 0.225 0.540 1 10/19/2024 17:37 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 9 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 9 of 27 SAMPLE RESULTS - 05 L1787617 SP-243_C_100824 Collected date/time: 10/08/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.8 1 10/14/2024 07:03 WG2381195 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.2 0.564 2.18 1 10/19/2024 17:39 WG2381404 Lead 296 0.227 0.545 1 10/19/2024 17:39 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 10 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 10 of 27 SAMPLE RESULTS - 06 L1787617 SP-272_A_100824 Collected date/time: 10/08/24 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.0 1 10/14/2024 07:03 WG2381195 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 33.3 0.575 2.22 1 10/19/2024 17:44 WG2381404 Lead 297 0.231 0.555 1 10/19/2024 17:44 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 11 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 11 of 27 SAMPLE RESULTS - 07 L1787617 SP-272_B_100824 Collected date/time: 10/08/24 14:13 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.4 1 10/14/2024 07:03 WG2381195 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 26.7 0.580 2.24 1 10/19/2024 17:46 WG2381404 Lead 374 0.233 0.560 1 10/19/2024 17:46 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 12 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 12 of 27 SAMPLE RESULTS - 08 L1787617 SP-273_A_100824 Collected date/time: 10/08/24 14:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.2 1 10/14/2024 07:03 WG2381195 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.6 0.574 2.22 1 10/19/2024 17:47 WG2381404 Lead 225 0.231 0.554 1 10/19/2024 17:47 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 13 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 13 of 27 SAMPLE RESULTS - 09 L1787617 SP-273_B_100824 Collected date/time: 10/08/24 14:28 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.2 1 10/14/2024 07:03 WG2381195 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 20.0 0.574 2.22 1 10/19/2024 17:49 WG2381404 Lead 261 0.231 0.555 1 10/19/2024 17:49 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 14 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 14 of 27 SAMPLE RESULTS - 10 L1787617 SP-274_A_100824 Collected date/time: 10/08/24 14:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.1 1 10/14/2024 07:03 WG2381195 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 22.0 0.569 2.20 1 10/19/2024 17:51 WG2381404 Lead 264 0.228 0.549 1 10/19/2024 17:51 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 15 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 15 of 27 SAMPLE RESULTS - 11 L1787617 SP-274_B_100824 Collected date/time: 10/08/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.0 1 10/14/2024 07:03 WG2381195 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 23.0 0.575 2.22 1 10/19/2024 17:52 WG2381404 Lead 299 0.231 0.555 1 10/19/2024 17:52 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 16 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 16 of 27 SAMPLE RESULTS - 12 L1787617 SP-274_C_100824 Collected date/time: 10/08/24 13:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.1 1 10/14/2024 07:03 WG2381195 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 21.5 0.575 2.22 1 10/19/2024 17:54 WG2381404 Lead 288 0.231 0.555 1 10/19/2024 17:54 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 17 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 17 of 27 SAMPLE RESULTS - 13 L1787617 SP-DUP-41 Collected date/time: 10/08/24 13:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.8 1 10/14/2024 07:03 WG2381195 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 17.8 0.564 2.18 1 10/19/2024 17:56 WG2381404 Lead 306 0.227 0.545 1 10/19/2024 17:56 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 18 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 18 of 27 SAMPLE RESULTS - 14 L1787617 SP-DUP-42 Collected date/time: 10/08/24 13:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.0 1 10/14/2024 07:03 WG2381195 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 27.4 J3 0.576 2.22 1 10/19/2024 17:27 WG2381404 Lead 294 J3 J5 0.231 0.556 1 10/19/2024 17:27 WG2381404 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 19 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 19 of 27 QUALITY CONTROL SUMMARYWG2381194 Total Solids by Method 2540 G-2011 L1787617-01,02,03,04 Method Blank (MB) (MB) R4132602-1 10/14/24 07:13 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1787610-03 Original Sample (OS) • Duplicate (DUP) (OS) L1787610-03 10/14/24 07:13 • (DUP) R4132602-3 10/14/24 07:13 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 85.1 86.9 1 2.10 10 Laboratory Control Sample (LCS) (LCS) R4132602-2 10/14/24 07:13 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 20 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 20 of 27 QUALITY CONTROL SUMMARYWG2381195 Total Solids by Method 2540 G-2011 L1787617-05,06,07,08,09,10,11,12,13,14 Method Blank (MB) (MB) R4132601-1 10/14/24 07:03 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1787617-11 Original Sample (OS) • Duplicate (DUP) (OS) L1787617-11 10/14/24 07:03 • (DUP) R4132601-3 10/14/24 07:03 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 90.0 90.1 1 0.0726 10 Laboratory Control Sample (LCS) (LCS) R4132601-2 10/14/24 07:03 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 21 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 21 of 27 QUALITY CONTROL SUMMARYWG2381404 Metals (ICP) by Method 6010B L1787617-03,04,05,06,07,08,09,10,11,12,13,14 Method Blank (MB) (MB) R4135050-1 10/19/24 17:24 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4135050-2 10/19/24 17:26 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 94.0 94.0 80.0-120 Lead 100 92.1 92.1 80.0-120 L1787617-14 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1787617-14 10/19/24 17:27 • (MS) R4135050-5 10/19/24 17:32 • (MSD) R4135050-6 10/19/24 17:34 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 111 27.4 151 120 111 82.9 1 75.0-125 J3 23.3 20 Lead 111 294 602 402 277 97.4 1 75.0-125 J5 J3 39.9 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 22 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 22 of 27 QUALITY CONTROL SUMMARYWG2381432 Metals (ICP) by Method 6010B L1787617-01,02 Method Blank (MB) (MB) R4133481-1 10/16/24 11:42 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4133481-2 10/16/24 11:44 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 98.1 98.1 80.0-120 Lead 100 97.2 97.2 80.0-120 L1787851-08 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1787851-08 10/16/24 11:46 • (MS) R4133481-5 10/16/24 11:51 • (MSD) R4133481-6 10/16/24 11:52 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 130 1.60 126 123 96.2 93.6 1 75.0-125 2.75 20 Lead 130 13.8 141 136 98.1 94.0 1 75.0-125 3.90 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 23 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 23 of 27 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J3 The associated batch QC was outside the established quality control range for precision. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 24 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 24 of 27 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/20/24 15:21 25 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1787617 10/21/24 08:02 25 of 27 ANALYTICAL REPORT October 21, 2024 GSC/Kleinfelder - SLC Sample Delivery Group:L1788562 Samples Received:10/12/2024 Project Number:24001739 Description:Olympia Report To:Mike Gronseth 849 W Levoy Dr, Ste 200 Salt Lake City, UT 84123 Entire Report Reviewed By: October 21, 2024 [Preliminary Report] Jason Romer Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 09:28 1 of 10 October 21, 2024 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 15:17 1 of 10 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 CS-ISI-101124 L1788562-01 5 Qc: Quality Control Summary 6 Total Solids by Method 2540 G-2011 6 Metals (ICP) by Method 6010B 7 Gl: Glossary of Terms 8 Al: Accreditations & Locations 9 Sc: Sample Chain of Custody 10 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 09:28 2 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 15:17 2 of 10 SAMPLE SUMMARY Collected by Collected date/time Received date/time CS-ISI-101124 L1788562-01 Solid Annie Matzke 10/11/24 09:30 10/12/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2383046 1 10/17/24 16:06 10/17/24 16:18 KDW Mt. Juliet, TN Metals (ICP) by Method 6010B WG2383522 1 10/20/24 08:45 10/20/24 17:10 MAP Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 09:28 3 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 15:17 3 of 10 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Jason Romer Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 09:28 4 of 10 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 15:17 4 of 10 SAMPLE RESULTS - 01 L1788562 CS-ISI-101124 Collected date/time: 10/11/24 09:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.7 1 10/17/2024 16:18 WG2383046 Metals (ICP) by Method 6010B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Arsenic 12.7 0.536 2.07 1 10/20/2024 17:10 WG2383522 Lead 166 0.215 0.517 1 10/20/2024 17:10 WG2383522 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 09:28 5 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 15:17 5 of 10 QUALITY CONTROL SUMMARYWG2383046 Total Solids by Method 2540 G-2011 L1788562-01 Method Blank (MB) (MB) R4134389-1 10/17/24 16:18 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1788563-03 Original Sample (OS) • Duplicate (DUP) (OS) L1788563-03 10/17/24 16:18 • (DUP) R4134389-3 10/17/24 16:18 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 86.5 84.1 1 2.82 10 Laboratory Control Sample (LCS) (LCS) R4134389-2 10/17/24 16:18 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 09:28 6 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 15:17 6 of 10 QUALITY CONTROL SUMMARYWG2383522 Metals (ICP) by Method 6010B L1788562-01 Method Blank (MB) (MB) R4135175-1 10/20/24 16:28 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Arsenic U 0.518 2.00 Lead U 0.208 0.500 Laboratory Control Sample (LCS) (LCS) R4135175-2 10/20/24 16:29 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Arsenic 100 92.9 92.9 80.0-120 Lead 100 94.4 94.4 80.0-120 L1788638-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1788638-02 10/20/24 16:31 • (MS) R4135175-5 10/20/24 16:36 • (MSD) R4135175-6 10/20/24 16:38 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Arsenic 110 2.74 93.4 94.7 82.6 83.8 1 75.0-125 1.33 20 Lead 110 28.0 137 137 98.9 99.5 1 75.0-125 0.553 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 09:28 7 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 15:17 7 of 10 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 09:28 8 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 15:17 8 of 10 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 09:28 9 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: GSC/Kleinfelder - SLC 24001739 L1788562 10/21/24 15:17 9 of 10