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DERR-2024-004961
Phase II Environmental Site Assessment Lelis Transmissions 845 South Main Street Salt Lake City, Salt Lake County, Utah Salt Lake Brownfields Coalition Assessments EPA Cooperative Agreement No. 95811800; ACRES ID 237101 November 14, 2022 Terracon Project No. 61217496 Task 3.3 Prepared for: Salt Lake County Salt Lake City, Utah Prepared by: Terracon Consultants, Inc Midvale, Utah Terracon Consultants, Inc. 6949 South High Tech Drive Midvale, Utah 84047 P [801] 545-8500 F [801] 545-8600 terracon.com November 14, 2022 Salt Lake County Economic Development 2001 South State Street, Suite S2-100 Salt Lake City, Utah 84114-4575 Attn: Ms. Kersten Swinyard P: 385-468-4869 E:kswinyard@slco.org Re:Phase II Environmental Site Assessment Lelis Transmissions 845 South Main Street, Salt Lake City, Utah EPA Cooperative Agreement No. 95811800 EPA ACRES Property ID 237101 Terracon Project No. 61217496 Task 3.3 Dear Ms. Swinyard: Terracon Consultants, Inc. (Terracon) is pleased to submit our report for Phase II Site Investigation activities completed at the above-referenced site. The report presents data from field activities that included the installation of soil borings converted to permanent monitoring wells for the collection of soil and groundwater samples. This investigation was approved by EPA under Cooperative Agreement #95811800 for Hazardous Substances commingled with Petroleum. The assessment was guided by a Sampling and Analysis Plan reviewed, amended, and approved by the EPA (May 3, 2022). Quality of data was guided by the EPA-approved Community-Wide Quality Assurance Project Plan Salt Lake Brownfields Coalition Assessments (Terracon, February 8, 2022). Terracon appreciates this opportunity to provide environmental support services to Salt Lake County. Should you have any questions or require additional information, please do not hesitate to contact our office. Sincerely, Terracon Consultants, Inc. Lauran Ortman Amy Austin Project Manager Authorized Project Reviewer TABLE OF CONTENTS Page 1.0 INTRODUCTION .................................................................................................. 1 1.1 Brownfields Setting ..............................................................................................1 1.2 Site Description and Background .........................................................................2 1.3 Standard of Care..................................................................................................3 1.4 Additional Scope Limitations ................................................................................3 1.5 Reliance ...............................................................................................................4 2.0 PHASE II SITE INVESTIGATION ........................................................................ 4 2.1 Scope ..................................................................................................................4 2.2 Sampling Process Design ....................................................................................4 2.3 Field Data Collection ............................................................................................5 2.4 Soil Sampling .......................................................................................................6 2.5 Groundwater Sampling ........................................................................................6 2.6 Well Construction .................................................................................................6 2.7 Field QA/QC Samples ..........................................................................................7 2.8 Equipment Decontamination ................................................................................8 3.0 LABORATORY ANALYTICAL METHODS.......................................................... 8 4.0 SUMMARY OF ANALYTICAL RESULTS............................................................ 8 4.1 Soil Data Analyses ...............................................................................................9 4.2 Groundwater Data Analyses ................................................................................9 5.0 DATA QUALITY ASSESSMENT ......................................................................... 9 5.1 Precision ............................................................................................................10 5.2 Bias and Accuracy .............................................................................................12 5.3 Representativeness ...........................................................................................14 5.4 Comparability .....................................................................................................15 5.5 Completeness ....................................................................................................16 5.6 Sensitivity...........................................................................................................16 6.0 DATA EVALUATION ......................................................................................... 18 6.1 Soil Sample Results ...........................................................................................18 6.2 Groundwater Sample Results ............................................................................18 7.0 CONCLUSIONS ................................................................................................. 19 8.0 REFERENCES ................................................................................................... 20 Table 1: Summary of Soil Borings Table 2: Analytical Method Summary APPENDICES Appendix A Exhibits Exhibit 1: Topographic Map Exhibit 2: Site Diagram Exhibit 3: Historical Soil and Groundwater Sampling Points Exhibit 4: 2020 Summary of Soil Sample Results Exhibit 5: 2020 Summary of Groundwater Sample Results Exhibit 6: 2019 Groundwater Gradient Map Exhibit 7: Monitoring Well Installation Map Exhibit 8: Summary of Soil Sample Results Exhibit 9: Summary of Groundwater Sample Results Exhibit 10: Groundwater Gradient Map, June 2022 Appendix B Soil Boring Logs Appendix C Data Summary Tables Table 1 Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Table 2 Petroleum Hydrocarbons and Volatile Organic Compounds in Groundwater Table 3.1 Duplicate Pair: Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Table 3.2 Duplicate Pair: Petroleum Hydrocarbons and Volatile Organic Compounds in Groundwater Appendix D Chain of Custody and Laboratory Data Sheets PHASE II ENVIRONMENTAL SITE ASSESSMENT Salt Lake Brownfields Assessment EPA Cooperative Agreement No. 95811800 Lelis Transmissions 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 November 14, 2022 1.0 INTRODUCTION Terracon Consultants, Inc. (Terracon) has completed a supplemental Phase II Environmental Site Assessment (Site Investigation) at the Lelis Transmissions site located at 845 South Main Street in Salt Lake City, Utah (Exhibit 1: Appendix A). This Phase II Site Investigation was completed with funding from the Salt Lake County Brownfields Assessment Grant following the approved Sampling and Analysis Plan, dated May 3, 2022. The site is identified in EPA’s online Assessment, Cleanup, and Redevelopment Exchange System (ACRES) as Property ID 237101. 1.1 Brownfields Setting Salt Lake County (the Grantee) is a recipient of an EPA community-wide assessment grant to inventory, characterize, assess, and conduct cleanup planning along with public outreach activities for eligible Brownfield sites located within County boundaries. As part of the Salt Lake County Brownfields Assessment Grant, EPA Cooperative Agreement No. 96835701, Terracon conducted an initial Phase I Environmental Site Assessment (ESA) on the site dated July 25, 2019 (Terracon 2019a). The Phase I ESA was compliant with Brownfields All Appropriate Inquiry and was performed in conformance with the scope and limitations of American Society for Testing and Materials (ASTM) Practice E1527-13. The purpose of the Phase I ESA was to identify any Recognized Environmental Conditions (RECs) in connection with the site. Terracon conducted an initial Phase II ESA in September 2019 (Terracon 2019b) to assess potential soil and groundwater impacts originating from the RECs reported in the Phase I ESA. Based on the impacts identified in the Phase II ESA, Terracon prepared a Remedial Alternatives Evaluation (July 20, 2020) to support redevelopment of the site by prospective developers by providing preliminary cleanup planning information. The Remedial Alternatives Evaluation identified the need for additional data pertaining to impacted soils and groundwater at the site. An additional Phase II ESA (November 18, 2020) was conducted that further characterized the on- site petroleum hydrocarbon impacts. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 2 This subsequent Phase II ESA was designed to address comments from the Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program (VCP) requesting further site characterization of potential off-site impacts and was guided by a Sampling and Analysis Plan (SAP) dated May 3, 2022 (Terracon 2022b) reviewed and approved by EPA and VCP. Quality of assessment data was guided by the SAP and EPA-approved Community-Wide Quality Assurance Project Plan Salt Lake Brownfields Coalition Assessments dated February 8, 2022 (Terracon, 2022a). 1.2 Site Description and Background The site is located at 845 South Main Street, Salt Lake City, Utah and is occupied by the Lelis Transmissions shop. The property operates as an auto repair facility. Commercial improvements at the site include an L-shaped 1-story building with mezzanine and approximately 7,400 square- foot automotive service/repair facility. The office/warehouse was used for storage of automotive parts and reference materials, the eastern part of the building is used for conducting automotive repair. The Lelis Transmissions site is identified as Salt Lake County Parcel ID 16-07-151-010 and in EPA’s online Assessment, Cleanup, and Redevelopment Exchange System (ACRES) as Number 237101. The 2019 Phase I ESA identified the following RECs in connection with the site: Long term use as auto repair:The facility has operated as an auto repair shop since the mid to late-1940s. The historic use of in-ground lifts, long-term chemical use associated with automotive repair, floor drains and sump, and an oil/water separator tied to a possible French drain were identified as a REC to the site. Historical USTs: According to a historical research, there was one former gasoline UST on the site. During a previous subsurface investigation conducted by Terracon for the property owner, contaminated groundwater and soil were encountered but believed to originate from an off-site source. The release from the off-site source that has impacted the site was identified as a REC. Former Nearby Dry-Cleaning Operations: The potential for historical releases from dry cleaning operations previously conducted in a facility located to the north, in a presumed up-gradient location, was considered a REC for the site. Based on the conclusions of the Phase I ESA and under the Brownfields contract, Terracon conducted a Phase II Environmental Site Assessment (September 2019). Sixteen investigation borings were installed for the collection of soil and groundwater samples near features of concern and four sub-slab soil gas sampling points were installed inside the building to allow for the collection of soil gas samples to assess the potential for vapor intrusion. Impacts to soil and groundwater exceeding regulatory screening levels were identified on the site. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 3 Based on the impacts identified in the Phase II ESA, Terracon prepared a Remedial Alternatives Evaluation (July 20, 2020) to support redevelopment of the site by prospective developers by providing preliminary cleanup planning information. The Remedial Alternatives Evaluation identified the need for additional data pertaining to soils and groundwater at the site. An additional site investigation was conducted to further characterized the petroleum hydrocarbon impacts reported at the site (Phase II Environmental Site Assessment, November 18, 2020).Exhibits 2 through 6 (Appendix A) from the 2019 and 2020 Phase II ESAs show the locations of key site features and sampling locations and convey pertinent information including sampling results. UDEQ reviewed the previous reports and data collected at the site and requested additional information pertaining to the extent of impacts in a letter dated November 17, 2021. This report documents the results of the implementation of the SAP designed to provide additional information to the UDEQ VCP. 1.3 Standard of Care Terracon’s services were performed in a manner consistent with generally accepted practices of the profession undertaken in similar studies in the same geographical area during the same time. Terracon makes no warranties, either express or implied, regarding the findings, conclusions, or recommendations. Please note that Terracon does not warrant the work of laboratories, regulatory agencies, or other third parties supplying information used in the preparation of the report. These Phase II services were performed in accordance with the scope of work agreed with you, our client, as reflected in our proposal and consistent with ASTM E1903-19,Standard Practice for Environmental Site Assessments: Phase II Environmental Site Assessment. 1.4 Additional Scope Limitations Findings, conclusions, and recommendations resulting from these services are based upon information derived from the on-site activities and other services performed under this scope of work; such information is subject to change over time. Certain indicators of the presence of hazardous substances, petroleum products, or other constituents may have been latent, inaccessible, unobservable, non-detectable, or not present during these services. We cannot represent that the site contains no hazardous substances, toxic materials, petroleum products, or other latent conditions beyond those identified during this Phase II investigation. Subsurface conditions may vary from those encountered at specific borings or wells or during other surveys, tests, assessments, investigations, or exploratory services. The data, interpretations, findings, and our recommendations are based solely upon data obtained at the time and within the scope of these services. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 4 1.5 Reliance This report has been prepared for the exclusive use of Salt Lake County. Any authorization for use or reliance by any other party (except a governmental entity having jurisdiction over the site) is prohibited without the express written authorization of Salt Lake County and Terracon. Reliance by authorized parties will be subject to the terms, conditions, and limitations stated in the underlying contract between Salt Lake County and Terracon. The limitation of liability defined in the terms and conditions is the aggregate limit of Terracon’s liability to all relying parties unless otherwise agreed in writing. 2.0 PHASE II SITE INVESTIGATION 2.1 Scope The proposed Phase II scope of work described in the SAP was intended to gather the data requested by the UDEQ VCP. These activities were conducted in accordance with a site-specific SAP that was prepared and approved by EPA and UDEQ for this site. The SAP established specific site objectives, sampling process design, details regarding site-specific sampling and analyses, and was used in conjunction with the EPA-approved QAPP. 2.2 Sampling Process Design The sampling strategy for soil and groundwater was designed to further evaluate impacts to soil and groundwater previously identified on the Lelis Transmission site and to assess potential impacts to soil and groundwater on adjacent properties (off-site). Seven soil boring locations, to be converted to permanent monitoring wells, were proposed to delineate on-site impacts and potential impacts off-site (Exhibit 7: Appendix A). Two of the seven proposed boring locations (MW-2 and MW-3) were inaccessible due to property access constraints. A total of five soil borings (MW-1, MW-4, MW-5, MW-6, and MW-7) were advanced using direct- push drilling equipment to allow for the collection of subsurface soil. The soil borings were advanced to a maximum depth of approximately 15 feet below grade surface (bgs). The five soil borings were then converted to permanent 2-inch flush mount monitoring wells to allow for the collection of groundwater. One soil sample was collected from each boring from the soil interval exhibiting signs of impacts, based on PID readings, and field observations. If no impacts were observed, one sample was collected from the capillary fringe. Following proper development and purging procedures, one groundwater sample was collected from each monitoring well. Samples were analyzed for total recoverable petroleum hydrocarbons (TRPH), volatile organic compounds (VOCs), total Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 5 petroleum hydrocarbons—gasoline range organics (TPH-GRO), and total petroleum hydrocarbons—diesel range organics. Tables C1 and C2 present the results of the soil and groundwater sampling. Table 1 below provides a summary description of the sample locations, sample types, sample naming convention, laboratory analyses, and sampling rationale. TABLE 1: SUMMARY OF SOIL BORINGS AND GROUNDWATER SAMPLING POINTS Sample Location Rationale Sample ID Sample Matrix Analytes MW-1 Area of historic NAPL MW-1 (8’)Soil TRPH, VOCs, TPH-GRO, TPH-DRO MW-1 Groundwater TRPH, VOCs, TPH-GRO, TPH-DRO MW-4 Off-site delineation of impacts MW-4 (9’)Soil TRPH, VOCs, TPH-GRO, TPH-DRO MW-4 Groundwater TRPH, VOCs, TPH-GRO, TPH-DRO MW-5 Off-site delineation of impacts MW-5 (0-1’)Soil TRPH, VOCs, TPH-GRO, TPH-DRO MW-5 Groundwater TRPH, VOCs, TPH-GRO, TPH-DRO MW-6 Off-site delineation of impacts MW-6 (7’)Soil TRPH, VOCs, TPH-GRO, TPH-DRO MW-6 Groundwater TRPH, VOCs, TPH-GRO, TPH-DRO MW-7 Off-site delineation of impacts MW-7 (8’)Soil TRPH, VOCs, TPH-GRO, TPH-DRO MW-7 Groundwater TRPH, VOCs, TPH-GRO, TPH-DRO NAPL (Non-aqueous phase liquid). TRPH (Total Recoverable Petroleum Hydrocarbons a.k.a. Oil & Grease). VOCs (Volatile Organic Compounds). TPH (Total Petroleum Hydrocarbon). GRO (Gasoline Range Organics). DRO (Diesel Range Organics). 2.3 Field Data Collection Following SAP approval, the public utility location service (Blue Stakes of Utah) was notified at least 48 hours prior to commencing drilling activities. A private utility location service was used to locate potential utilities and other subsurface obstacles in the immediate vicinity of each boring location. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 6 Terracon conducted the field investigation on June 6 and 7, 2022. The mechanized drilling services were performed by Utah-licensed well driller Direct Push Services; Terracon environmental personnel directed and supervised the drilling activities, logged the soil borings, and collected field samples. During advancement of the soil borings, soils were continuously cored in 5-foot intervals and observed to document subsurface soil types, color, relative moisture content, and sensory evidence of environmental impacts. The soil samples were field-screened using a portable photoionization detector (PID)—Mini Rae 3000 PID equipped with a 10.6 eV ultraviolet lamp to evaluate the potential presence of total volatile organic compounds (TVOCs). The unit measures TVOCs in sample headspace air relative to parts per million calibration gas equivalents in air and identified simply as “PPM” on soil boring logs. Native soils consisted of silts, silty clays, gravel, and sand lenses. Low to non-detect PID readings were identified in the field. Detailed lithological descriptions and PID readings are included on the soil boring logs provided in Appendix B. Groundwater was encountered between approximately 7 to 10 feet bgs during boring installation. Static groundwater levels measured between 7.5 to 9.2 feet bgs in the monitoring wells with a calculated gradient to the west and southwest. 2.4 Soil Sampling Soil samples were collected from each of the five direct-push borings following the procedures detailed in Standard Operating Procedure (SOP) 5, Geoprobe Sampling, which is provided in Appendix B of the EPA-approved QAPP. During advancement of the borings, soils were logged as detailed in SOP 1, Soil Sampling and Logging, provided in Appendix B of the EPA-approved QAPP. 2.5 Groundwater Sampling Groundwater samples were collected from each of the five (5) monitoring wells following SOP 12 Groundwater Monitoring Well Sampling provided in Appendix B of the QAPP. 2.6 Well Construction Monitoring wells were installed following SOP 10B Monitoring Well Design and Installation of the approved QAPP.The monitoring well construction details are provided in Appendix B and were constructed as follows: Borings were advanced to a total depth of approximately 15 feet below grade surface (bgs). Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 7 A 10 feet of 2-inch diameter, 0.010-inch machine slotted polyvinyl chloride (PVC) well screen was installed to screen a minimum of 2 feet above the observed water table with a threaded bottom cap. A 2-inch diameter, threaded, flush-joint PVC riser pipe was installed from the screened interval to 2 to 3-inches below the ground surface. Pre-sieved 20/40 grade silica sand was added for annular sand pack around the well screen from the bottom of the boring to approximately 2 feet above the top of the well screen. Approximately 3 feet of hydrated bentonite pellets were placed above the sand pack Cement/bentonite slurry was added to the surface and construction of a traffic-rated 8-inch diameter well monument was completed. The new monitoring wells were developed after installation and allowed to equilibrate for approximately 24 hours prior to groundwater sample collection. The top-of-casing of the monitoring wells was surveyed relative to an on-site datum point. The survey data and depth-to-water data was used to calculate the groundwater flow direction at the site. 2.7 Field QA/QC Samples Per the QAPP, field duplicate samples for soil and groundwater were collected at a minimum rate of 10 percent. A total of five soil samples and five groundwater samples were collected. For this investigation, one field duplicate soil and one field duplicate groundwater sample were collected, which represents a duplicate frequency of 20% per sample media. One duplicate sample was analyzed for each laboratory analytical method, which represents the following duplicate frequencies per analytical method. TPH-GRO, TPH-DRO, TRPH, and VOCs in soil:1 duplicate for 5 samples or 20% TPH-GRO, TPH-DRO, TRPH, and VOCs in groundwater: 1 duplicate for 5 samples or 20% The duplicates were given a fictitious identification so that the laboratory would be unaware of their duplicate status. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 8 The soil boring selected for duplicate soil sampling was MW-5 (0-1’); duplicate sample ID SOIL DUP 1. The groundwater duplicate sample was collected from monitoring well MW-5, duplicate sample ID WATER DUP. One (1) trip blank (laboratory supplied blank) was included in the shipment. 2.8 Equipment Decontamination Non-expendable sampling equipment was decontaminated at the beginning of the project and decontaminated between each sampling location. These items were hand-scrubbed in an Alconox and potable water solution and rinsed with potable water between sample locations. Drilling equipment was cleaned using a high-pressure washer prior to beginning the project and between boring locations. 3.0 LABORATORY ANALYTICAL METHODS All soil and groundwater samples (including field duplicates and trip blank) were placed in iced coolers. The samples were shipped in iced coolers under chain-of-custody protocols via overnight courier to Pace Analytical Laboratories in Mt. Juliet, Tennessee (a Utah-Certified laboratory). Samples were analyzed using the following methods: TABLE 2: ANALYTICAL METHOD SUMMARY Parameter Matrix (Solid/Liquid)Analytical Method No. of Samples1 TRPH Soil SW-846 9071B 6 TRPH Groundwater SW-846 1664A 6 TPH-DRO Soil SW-846 8015 6 TPH-DRO Groundwater SW-846 3511/8015 7 TPH-GRO Soil SW-846 8260B 6 TPH-GRO Groundwater SW-846 8260B 7 VOCs Soil SW-846 8260B 6 VOCs Groundwater SW-846 8260B 7 1Includes field duplicate sample and trip blank samples. 4.0 SUMMARY OF ANALYTICAL RESULTS The following sections summarize analytical results. A summary of the analytical results is provided in Tables C1 and C2 (Appendix C). Copies of the Pace analytical reports and sample chain-of-custody records are provided in Appendix D. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 9 Constituent concentrations in soil were compared to current EPA RSLs for residential and industrial use scenarios, and to Utah Department of Environmental Quality (UDEQ) Leaking Underground Storage Tank (LUST) Initial Screening Levels (ISLs) and Tier 1 Screening Levels. Constituent concentrations in groundwater were compared to EPA Maximum Contaminant Levels (MCLs), UDEQ-LUST ISLs and Tier 1 Screening Levels and Utah Ground Water Quality Protection Standards (UGWQS; UAC-R317-6-2.1). 4.1 Soil Data Analyses Petroleum Hydrocarbons: The soil sample collected from the on-site boring location MW-1 reported concentrations of TRPH, TPH-DRO, and TPH-GRO that exceeded the UDEQ ISLs. The concentrations reported did not exceed a Tier 1 Screening Level. Petroleum hydrocarbons were not reported at concentrations that exceeded a UDEQ Screening Level at any of the off-site boring locations.Exhibit 8 (Appendix A) displays a summary of the soil sample results exceeding a UDEQ Screening level. VOCs: No soil samples collected during this investigation exceeded a screening level for VOCs. 4.2 Groundwater Data Analyses Petroleum Hydrocarbons: The groundwater sample collected from the on-site monitoring well location MW-1 reported concentrations of TPH-DRO that exceeded the UDEQ ISLs.The groundwater samples collected off-site monitoring well locations MW-4, MW-5, and MW-6 also reported concentrations of TPH-DRO that exceeded the UDEQ ISLs. Petroleum hydrocarbons were not reported at concentrations that exceeded a UDEQ Screening Level at off-site monitoring well location MW-7. Exhibit 9 (Appendix A) displays a summary of the groundwater sample results exceeding a UDEQ Screening level. VOCs: The groundwater sample collected from the on-site monitoring well location MW-1 reported concentrations of 1,4-dichlorobenzene and naphthalene that exceed the EPA residential VISL and EPA commercial VISL, respectively. The groundwater sample collected off-site monitoring well location MW-6 reported concentrations of benzene that exceeded the EPA MCL, the UDEQ ISL, and commercial VISL. VOCs were not reported in any of the other off-site boring location samples at concentrations that exceeded a screening level. 5.0 DATA QUALITY ASSESSMENT All laboratory analytical data were subject to internal reduction and validation prior to external release of the data, as detailed in the laboratory’s Quality Assurance Manual. Following receipt of the laboratory analytical results by Terracon, the data were reviewed to evaluate compliance with Data Quality Indicators (DQIs) outlined in Sections D1, D2, and D3 of the QAPP. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 10 Documentation provided with the laboratory analytical results reports included case narratives; analytical data with minimum method detection limits (MDLs) and reported detection limits (RDLs) reporting limits listed for all analyses; surrogate recoveries for GC/MS analyses with laboratory control limits; chain-of-custody records; a quality control summary, including method blanks, matrix spike/matrix spike duplicates (MS/MSD) with control limits, laboratory control samples, and duplicates (LCS/LCSD) with control limits; and application of data qualifiers where warranted. Assessment of the DQIs for Precision, Bias and Accuracy, Representativeness, Comparability, Completeness, and Sensitivity are presented in the following subsections. 5.1 Precision Precision was evaluated on the basis of relative percent difference (RPD) as a measure of reproducibility between LCS/LCSD pairs and MS/MSD pairs (analytical precision) and between field samples and field duplicate samples (field precision). The RPD is calculated to evaluate precision using the following equation. RPD =𝑿𝟎−𝑿𝟎 ቀ𝑿𝟎+𝑿𝟎 𝟎ቁ 𝒙𝟎𝟎𝟎Where X1 and X2 are the reported concentrations of the samples being evaluated. 5.1.1 Analytical Precision A summary of the Quality Control assessment for analytical precision is presented below. Laboratory Set L1502586 (Soil and Groundwater Samples): The RPDs for a laboratory duplicate for TRPH (Batch WG1878860) was outside the laboratory’s control limits. As a result, a J3 flag was used to qualify this data. One of the affected samples (MW-1 (8’)) had a TRPH concentration slightly above the ISL. Additionally, the MS/MSD for this batch also had an accuracy issue (see below). It is possible that this analytical precision issue has an effect on the usability of this result. However, other petroleum hydrocarbons exceeded regulatory screening levels in this sample and did not have qualifiers, so it is assumed that this TRPH also exceeds this screening level. Although there may be an effect on this data, it is not anticipated this analytical precision issue will affect the conclusions of this report for the reasons listed above. The RPD for the LCSD for 1,1-dichloroethane and di-isopropyl ether was outside the laboratory’s control limits. A J3 flag was used to qualify this data. The affected analytes were not detected above the RDL in any of the samples analyzed, and the detection limits were orders of magnitude below regulatory screening levels. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 11 As a result, this analytical precision issue is not anticipated to affect the conclusions of this report. The laboratory did not use a field-collected samples from this investigation for the MS/MSD analyses. As a result, the laboratory precision for the MS/MSD cannot be fully evaluated. However, other DQIs (with exceptions listed in this section) are in control. Additionally, both soil and groundwater samples exceed regulatory screening levels and are considered to exceed these levels despite possible precision issues. As a result, this analytical precision issue is not anticipated to affect the conclusions of this report. Based on the results of the RPD analyses of the MS/MSD and LCS/LCSD pairs and the evaluation provided above,analytical precision is considered within control for Laboratory Set L1502586 (Soil and Groundwater Samples). 5.1.2 Field Precision A total of one soil and one groundwater duplicate pairs were collected and analyzed. A summary of the Quality Control assessment for field precision is presented below. Per the QAPP, analytical results for original samples and field duplicate pairs that are less than five times the laboratory’s Reported Detection Limit (RDL) in the analytical reports, were considered within control if the difference between the sample concentration and its duplicate was less than two times the RDL. When analytical results for the original sample and the field duplicate pairs are greater than five times the RDL, the duplicate pair was considered within control when the RPDs for the field duplicate pairs were within the QAPP’s control limits (50% for solid samples, 25% for groundwater samples). Laboratory Set L1502586 (Soil Samples): Petroleum Hydrocarbons in Soil (Table C3.1) The duplicate pair (MW-5 (0-1’))/Soil DUP 1 were considered to be in control for TPH-DRO, TPH-GRO, and TRPH as samples were either both < 5X RDL where their difference between the concentrations was less than 2 X RDL, or both were below the RDL (not detected). VOCs in Soil (Table C3.1) All VOCs are considered to be in control because both the original and duplicate were less than 5 X RDL where the difference between the original and duplicate were less than 2 X RDL. Both samples were below RDLs where the difference between their RDLs were less than 2 X RDL, or the original was less than 5 X RDL, but the duplicate was less than RDL and the difference between the sample results (using ½ RDL) was less than 2X RDL. The only exception was benzene where the Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 12 difference between the samples was slightly greater than 2 X RDL. However, these samples were orders of magnitude below any regulatory screening levels, and all other samples were also well below these screening levels. It is unlikely that benzene not being in control has an effect on the conclusions of this report. Based on the results of the evaluation provided above,field precision is considered within control for Laboratory Set L1502586 (Soil Samples). Laboratory Set L1502586 (Groundwater Samples): Petroleum Hydrocarbons in Groundwater (Table C3.2) TPH-DRO, TPH-GRO, and TRPH are considered in control for the duplicate pair MW-5/Water DUP as the calculated RPD for TPH-DRO (5.5%) is less than the QAPP control limit of 25%, and both TPH-GRO and TRPH were not detected above the RDL where the difference between their RDLs were less than 2 X RDL. VOCs in Soil (Table C3.2) All VOCs are considered to be within control for the groundwater duplicate pair MW-5/Water DUP as the analytes were not detected above their RDLs where the difference between their RDLs were less than 2 X RDL. Based on the results of the RPD analyses of the field duplicate sample pairs and the evaluation provided above,field precision is considered within control for Laboratory Set L1502586 (Groundwater Samples). 5.2 Bias and Accuracy Bias and Accuracy were evaluated through a review of the method blanks, trip blanks, percent recoveries for LCS/LCSD, and percent recoveries for MS/MSD summaries provided by the laboratory. Method blanks and trip blanks were considered within control (i.e.,accuracy) if the constituents analyzed were less than the analytical method reporting limits. LCS/LCSD and MS/MSD analyses were considered within control if the percent recoveries were within the laboratory’s established limits (i.e.,bias). A summary of the Quality Control assessment for Bias and Accuracy is presented below. Laboratory Set L1502586 (Soil and Groundwater Samples): o Accuracy-Method Blank: All analytes in the method blanks were less than the laboratory RDLs. Bromomethane was detected in the method blank for Batch WG1880627 in an estimated concentration below its RDL (J flag). However, it was not detected in any of the analytical samples. It is unlikely this will affect the usability of this data or the conclusions of this report. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 13 o Accuracy-Trip Blank: A trip blank was analyzed for TRPH-DRO, TPH-GRO, and VOCs. TPH-DRO was detected in the trip blank in an estimated concentration below its RDL (J Flag). However, the concentration was orders of magnitude below regulatory screening levels. It is unlikely this will affect the usability of this data or the conclusions of this report. o Surrogate Recoveries: The laboratory noted that the internal standard exhibited poor recovery due to sample matrix interference for 1,2,4-trimethylbenzene (Batch WG1879361) causing the analytical results to be biased high. A V3 value was assigned to this data. The affected soil sample had orders of magnitude below regulatory screening levels. This is not expected to affect the usability of the data or alter the conclusions of this report. The surrogate recovery limits were exceeded for 4-bromofluorobenzene (Batch WG1879858), and the values are outside lower control limits. A J2 value was assigned to this data. The affected soil sample had a few minor detections above RDLs but were well below regulatory screening levels. This is not expected to affect the usability of the data or alter the conclusions of this report. Bias-PLCS/LCSD Percent Recoveries:The LCS/LCSD for bromoform, chlorodibromomethane, and trans-1,3-dichloropropene (Batch WG1879398) was below the established quality control range for accuracy. Additionally, the LCSD for di-isopropyl ether (Batch WG1880627) was above the quality control range for accuracy. A J4 value was assigned to this data. None of the affected samples had detections of these analytes above their RDLs. As such, the percent recoveries for these analytes being outside of the laboratory’s control limits is not anticipated to affect the usability of the data. Bias-MS/MSD Percent Recoveries:The percent recovery for the MS for TRPH (Batch WG1879855) and the MS/MSD for TRPH (Batches WG1878860 and WG1880051) interfered with the ability to make any accurate determination, causing a low spike value. A J6 qualifier was applied to this data. All but one of the affected samples had TRPH concentrations well below regulatory screening levels. The other sample (MW-1(8’)) had a concentration slightly exceeding the ISL. However, this sample also had TPH-DRO and TPH-GRO above the ISL., so it is assumed that this TRPH also exceeds this screening level. Although this bias issue may have an effect on the quality of this data, it is not anticipated this issue will affect the conclusions of this report for the reasons listed above. The percent recovery for the MS for TPH-DRO (Batch WG1881169) interfered with the ability to make any accurate determination, causing a low spike value. A J6 qualifier was applied to this data. All but one of the affected samples had TPH- DRO concentrations well below regulatory screening levels. The other sample Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 14 (MW-1(8’)) had a concentration exceeding the ISL. However, this sample also had TRPH and TPH-GRO above the ISL., so it is assumed that this TPH-DRO concentration also exceeds this screening level. Additionally, the corresponding groundwater sample (MW-1) also exceeds the ISL and the other DQIs were considered in control. Although this bias issue may have an effect on this data, it is not anticipated this issue will affect the conclusions of this report for the reasons listed above. Bias and Accuracy are considered within control for Laboratory Set 1502586. 5.3 Representativeness Representativeness is a qualitative parameter most concerned with proper design and execution of the sampling program to produce data that accurately and precisely represent environmental conditions. Selection of analytical methods, sampling methods and locations representative of the media sampled were set forth in the SAP.Representativeness in the field was achieved by implementing the approved SAP and using appropriate sampling methods, sample containers, sample handling, and preservation methods.Representativeness in the laboratory was achieved by using the proper analytical procedures, meeting sample holding times, and analyzing and assessing laboratory QA/QC samples. Field Representativeness Terracon was not able to secure access to the east upgradient proposed boring location MW-2 and the north-adjoining property location MW-3. All other sampling was conducted in general accordance with the Sampling and Analysis Plan (SAP) and associated Standard Operating Procedures. Based on the deviation of the boring locations that occurred during the sampling event, this event was unable to determine the full extent of potential upgradient off-site groundwater impacts. Laboratory Representativeness Sample analyses followed the analytical methods listed in the SAP or equivalent EPA-approved variations of the listed methods. The laboratory noted that the pH for the TPH-DRO analyses for some of the samples were outside of the method requirement. The preservation of this sample was provided by the laboratory. The affected samples were above regulatory screening levels. However, other samples not affected by this issue also had TPH-DRO detected above Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 15 regulatory screening levels, so this issue is not expected to have an effect on the usability of the data. Sample analyses followed the analytical methods listed in the SAP or equivalent EPA- approved methods or variations of the listed methods. Sample analyses were performed within the specified holdings times for all the project samples. Representativeness is considered within control. 5.4 Comparability Comparability is a qualitative term expressing the confidence with which one data set can be compared to another. The comparability goal was achieved using standardized sampling procedures in accordance with the SAP and QAPP, use of standardized and approved laboratory analytical methods, and reporting the analytical results in appropriate and consistent units. Sampling was conducted in general accordance with the Sampling and Analysis Plan (SAP) and associated Standard Operating Procedures. Deviations from the SAP occurred during the sampling event and are discussed in Section 5.3. Sample analyses followed the analytical methods listed in the SAP or equivalent EPA- approved methods or variations of the listed methods. The units of measure reported by the laboratories were consistent with the units of measure used by the regulatory Screening Levels. The number of field duplicates specified in the approved SAP was 10% of the field samples. o TPH-GRO:One field duplicate for five soil samples or 20.0%, which exceeds the 10% goal. One field duplicate for five groundwater samples or 20.0%, which exceeds the 10% goal. o TPH-DRO: One field duplicate for five soil samples or 20.0%, which exceeds the 10% goal. One field duplicate for five groundwater samples or 20.0%, which exceeds the 10% goal. o TRPH: One field duplicate for five soil samples or 20.0%, which exceeds the 10% goal. One field duplicate for five groundwater samples or 20.0%, which exceeds the 10% goal. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 16 o VOCs: One field duplicate for five soil samples or 20.0%, which exceeds the 10% goal. One field duplicate for five groundwater samples or 20.0%, which exceeds the 10% goal. Comparability is considered within control. 5.5 Completeness Completeness is the ratio of valid measurements to the number of planned measurements, expressed as a percentage, and the completeness goal for the project is 90%. The sampling program is deemed to meet the DQIs for valid measurements. Minor exceptions exist as described above, but none are expected to affect the usability of the data or the conclusions of this report. The samples collected were submitted and analyzed by the laboratory according to the chain-of-custody. Additionally, the data collection followed the procedures and requirements as described in the approved QAPP and SAP. The data are considered usable as qualified. The analytical completeness for this sampling event was 100%. With acknowledgement of qualified results for the analytes listed above, the analytical data are acceptable for their intended use to evaluate constituent concentrations compared to applicable regulatory screening levels. 5.6 Sensitivity Sensitivity refers to the capability of a method or instrument to discriminate between measurement responses representing different Levels of the variable of interest. The sensitivity goal is for RDLs to be below comparative Screening Levels, which vary considerably by analyte and in value and applicability. Overall, the level of sensitivity was sufficient to allow the identification of soil and groundwater constituents above applicable regulatory Screening Levels. Laboratory Set L1502586 (Soil Samples): o TPH-GRO (Table C1):The RDLs were all less than the Utah ISLs and Utah Tier 1 Screening Levels for analytes reported as less than the RDL. o TPH-DRO (Table C1): The RDLs were all less than the Utah ISLs and Utah Tier 1 Screening Levels for analytes reported as less than the RDL. o TRPH (Table C1): The RDLs were all less than the Utah ISLs and Utah Tier 1 Screening Levels for analytes reported as less than the RDL. o VOCs (Table C1): The RDLs were all less than the Utah ISLs, Utah Tier 1 screening levels, and EPA residential RSLs, as applicable, for analytes reported as less than the RDL. The only exceptions to this were acrylonitrile, Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 17 bromodichloromethane, carbon tetrachloride, chloroform, 1,2-dibromo-3- chloropropane, 1,2-dibromoethane, 1,2-dichloroethane, naphthalene, 1,1,2,2- tetrachlorethane, 1,2,3-trichloropropane, and vinyl chloride that had RDLs that exceeded the EPA commercial and/or residential RSL in at least one sample. Most of these constituents were not reported in any of the samples above their RDLs or MDLs. In a few samples these analytes (e.g., benzene) were detected well below regulatory screening levels. As a result, this is not anticipated to affect the conclusions of this report. Laboratory Set L1262016 (Groundwater Samples): o TPH-GRO (Table C2):The RDLs were all less than the Utah ISLs and Utah Tier 1 Screening Levels for analytes reported as less than the RDL with the exception of MW-1 and MW-5/Water DUP. However, no other samples had detections of TPH-GRO above the RDL, and other petroleum hydrocarbons in groundwater were above regulatory screening levels. As a result, this is not anticipated to affect the conclusions of this report. o TPH-DRO (Table C2):The RDLs were all less than the Utah ISLs and Utah Tier 1 Screening Levels for analytes reported as less than the RDL. o TRPH (Table C2):The RDLs were all less than the Utah ISLs and Utah Tier 1 Screening Levels for analytes reported as less than the RDL. o VOCs (Table C2): The RDLs were all less than the Utah ISLs, Utah Tier 1 screening levels, EPA VISLs, and EPA residential RSLs, as applicable, for analytes reported as less than the RDL. The only exceptions to this were acrolein, acrylonitrile, benzene, bromodichloromethane, bromomethane, carbon tetrachloride, chloroform, 1,2-dibromo-3-chloropropane, 1,2-dibromoethane, dibromomethane, 1,4-dichlorobenzene, dichlorofluoromethane, 1,1- dichloroethane, 1,2-dichloroethane, 1,1-dichloroethene, 1,2-dichloropropane, ethylbenzene, hexachloro-1,3-butadiene, methylene chloride, naphthalene, 1,1,1,2-tetrachloroethane, 1,1,2,2-tetrachloroethane, tetrachloroethene, 1,1,2- trichloroethane, trichloroethene, 1,2,3-trichloropropane, and vinyl chloride, that had RDLs that exceeded their EPA MCLs. These constituents were typically not reported in any of the samples with rare exceptions and often only affected a subset of samples due to dilution. Only 1,4-dichlorobenzene and naphthalene exceeded a residential VISL but not any other regulatory screening level. As a result, this is not anticipated to affect the conclusions of this report. The DQIs for Comparability were achieved. As such,Comparability was deemed acceptable. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 18 6.0 DATA EVALUATION Following is an overview of the identified contaminants in soil and groundwater during the course of the current Phase II ESA. 6.1 Soil Sample Results Petroleum hydrocarbon concentrations exceeded the UDEQ ISLs on-site at boring location MW- 1 in the sample collected at approximately 8 feet bgs. This boring was placed down-gradient and in close proximity to a historical boring location that had reported measurable LNAPL in 2019. None of the off-site boring locations reported petroleum hydrocarbon concentrations exceeding a UDEQ Screening Level. No soil samples collected during this investigation exceeded a regulatory screening level for VOCs. Based the sampling results and on the low to non-detect PID readings observed at each of the off-site soil boring locations, the soil impacts do not appear to extend off the Lelis Transmission site in the down-gradient direction. Exhibit 5 (Appendix A) indicates the petroleum hydrocarbon exceedances over UDEQ Screening Levels from this investigation as well as previous investigations. 6.2 Groundwater Sample Results The groundwater samples collected from monitoring wells MW-1 (on-site) and MW-4, MW-5, and MW-6 (off-site) reported concentrations of TPH-DRO that exceeded the UDEQ ISLs. Monitoring wells MW-4 through MW-6 are all located downgradient relative to MW-1. Petroleum hydrocarbons were not reported at concentrations that exceeded a UDEQ Screening Level at off- site monitoring well MW-7, across Main Street. The groundwater sample collected from the on-site monitoring well location MW-1 reported concentrations of 1,4-dichlorobenzene and naphthalene that exceed the EPA residential VISL and EPA commercial VISL, respectively. The groundwater sample collected from off-site monitoring well location MW-6 reported concentrations of benzene that exceeded the EPA commercial VISL. No other VOCs were reported in any of the other off-site boring location samples at concentrations that exceeded a screening level. Based on the results of this investigation, it appears that groundwater exceeding the ISL has migrated off the Lelis Transmission site and onto adjoining properties. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 19 Exhibit 6 (Appendix A) indicates the petroleum hydrocarbon exceedances over UDEQ Screening Levels from this investigation as well as previous investigations. 7.0 CONCLUSIONS Based on the investigations conducted at the site, it appears a release of petroleum hydrocarbons has originated on the site. The on-site groundwater flow direction was determined to have a general northwest gradient in 2019. The groundwater flow direction observed in this current investigation was to the west-southwest. Given the high concentrations of TRPH reported in on-site soils inside the building and the presence of product observed in a boring adjacent to the drain in the parking lot, it is likely a release has occurred originating from the site. Terracon contacted listed property owners of the north-adjoining property and the east-adjoining property to request access to install borings and received no response. An historical release was reported on the south-adjoining property; however, a building adjoins the property boundary to the south and access to this site is limited. As Terracon was not able to install borings on adjoining properties, the extent of groundwater contamination exceeding UDEQ screening levels is not fully defined off-site. As access to upgradient properties was not granted, it was not determined whether there may be an upgradient source of petroleum hydrocarbons migrating onto the property. Removal or remediation of the source soils would remove the on-site source of petroleum hydrocarbons contributing to a groundwater plume. Due to exceedances of regulatory screening levels in both soil and groundwater at the site the extent of remedial action required to address impacted soil and groundwater will depend on what specific type of redevelopment is planned (i.e., residential apartments vs a parking lot) for the site. Phase II Environmental Site Assessment Lelis Transmissions ■ Salt Lake City, Utah Terracon Project 61217496 Task 3.3 ■November 14, 2022 Responsive ■Resourceful ■Reliable 20 8.0 REFERENCES Terracon Consultants, Inc. (Terracon) 2015 Limited Site Investigation Report, Lelis Transmissions, 845 South Main Street, Salt Lake City, Utah, Terracon Project No. AL157378, August 18, 2015. 2019 Phase I Environmental Site Assessment, Lelis Transmission, 845 Main Street, Salt Lake City, Salt Lake County,July 25, 2019. 2019 Sampling and Analyses Plan, Salt Lake County Brownfields Assessment, EPA Cooperative Agreement No. 96835701, Hazardous Materials and Petroleum Grant for Salt Lake County, Lelis Transmissions, 845 South Main Street, Salt Lake City, Salt Lake County, Utah, August 19, 2019. 2019 Phase II Site Assessment, Sampling and Analyses Plan, Salt Lake County Brownfields Assessment, EPA Cooperative Agreement No. 96835701: ACRES ID No. 237101, Hazardous Materials and Petroleum Grant for Salt Lake County, Lelis Transmissions, 845 South Main Street, Salt Lake City, Salt Lake County, Utah,September 24, 2019; Revised September 30, 2019. 2020 Community-Wide Quality Assurance Project Plan, Salt Lake Brownfields Coalition Assessments, EPA Cooperative Agreement No. 96896101, Salt Lake County, Salt Lake City, and Murray City, Utah,January 21, 2020. 2020 Remedial Alternatives Evaluation, Lelis Transmission, 845 Main Street, Salt Lake City, Salt Lake County,July 20, 2020. 2020 Sampling and Analyses Plan, Salt Lake County Brownfields Coalition Assessments, EPA Cooperative Agreement No. 96886101, Hazardous Materials and Petroleum Grant for Salt Lake County, Lelis Transmissions, 845 South Main Street, Salt Lake City, Salt Lake County, Utah, September 8, 2020. 2020 Phase II Site Assessment, Sampling and Analyses Plan, Salt Lake County Brownfields Assessment, EPA Cooperative Agreement No. 96835701: ACRES ID No. 237101, Hazardous Materials and Petroleum Grant for Salt Lake County, Lelis Transmissions, 845 South Main Street, Salt Lake City, Salt Lake County, Utah,November 18, 2020. U.S. Geological Survey Professional Paper 1270; Element Concentrations in Soils and Other Surficial Materials of the Conterminous United States 1984. APPENDIX A Exhibits TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY QUADRANGLES INCLUDE: SALT LAKE CITY NORTH, UT (1/1/1998), FORT DOUGLAS, UT (1/1/1998), SALT LAKE CITY SOUTH, UT (1/1/1999) and SUGAR HOUSE, UT (1/1/1998). TOPOGRAPHIC MAP LELIS TRANSMISSIONS 845 South Main Street Salt Lake City, UT6949 S High Tech Dr, Ste 100 Midvale, UT 84047-3707 61177082 DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES Project Manager: Drawn by: Checked by: Approved by: AT ABF ABF ABF Exhibits Sept 2019 Project No. File Name: Date: 1 Exhibit 1”=2,000’Scale: SUBJECT PROPERTY SITE DIAGRAM 6949 S High Tech Dr, Ste 100 Midvale, UT 84047-3707 61177082AERIAL PHOTOGRAPHY PROVIDED BY MICROSOFT BING MAPS LELIS TRANSMISSIONS 845 South Main Street Salt Lake City, UTDIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES Project Manager: Drawn by: Checked by: Approved by: AT ABF ABF ABF Exhibits Sept 2019 Scale: Project No. File Name: Date: AS SHOWN Exhibit Legend Drains Hoists Sump Oil-Water Separator APPROXIMATE SITE BOUNDARY Fo r m e r U S T B a s i n AS T Undocumented UST Removal (Adjoining Property) Sump Oil-Water Separator Parts Washing 5 6 @A @A @A @A @A @A @A MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 © 2022 Microsoft Corporation © 2022 Maxar ©CNES (2022) Distribution Airbus DS © 2022 TomTom PH. (801) 545-8500 terracon.com 6949 S High Tech Dr, Ste 100 Midvale, UT 84047 Exhibit61217496 Oct 2022 AST ABF Project No.: Date: Drawn By: Reviewed By: N : \ G I S \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I \ M a p s \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I . a p r x 0 50 10025 Feet © OpenStreetMap (and) contributors, CC-BY-SA New Groundwater Monitoring Well (2022) @A Newly Installed @A Not Installed Monitoring Well Installation Map Lelis Transmissions 845 South Main Street Salt Lake City, Utah DATA SOURCES: ESRI WMS - World Aerial Imagery, OpenStreetMap 7 ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED ED EDED ED ED ED ED ED ED ED EDEDED ED ED ED @A@A @A @A @A @A @A @A LT-B-2 LT-B-4 LT-B-6 LT-B-1 LT-B-3 LT-B-5 LT-B-7LT-B-11 LT-B-10 LT-B-9 LT-B-15 LT-B-14 LT-B-12LT-B-13 (Refusal) LT-B-16 LT-B-8 LT-B-17 LT-B-18 LT-B-19 LT-B-7A LT-B-2A LT-B-5A MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 © 2022 Microsoft Corporation © 2022 Maxar ©CNES (2022) Distribution Airbus DS © 2022 TomTom PH. (801) 545-8500 terracon.com 6949 S High Tech Dr, Ste 100 Midvale, UT 84047 Exhibit61197491 Oct 2022 AST ABF Project No.: Date: Drawn By: Reviewed By: N : \ G I S \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I \ M a p s \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I . a p r x 0 50 10025 Feet © OpenStreetMap (and) contributors, CC-BY-SA New Groundwater Monitoring Well (2022) @A New @A Not Installed ED Soil Borings - September 2019 ED Additional LSI Borings - September 2020 Soil Exceedances @A 2022 Soil Sampling Point > ISL ED 2020 Soil Sampling Point > ISL ED 2019 Soil Sampling Point > ISL ED 2019 Soil Sampling Point > Tier 1 Summary of Soil Sample Results Lelis Transmissions 845 South Main Street Salt Lake City, Utah DATA SOURCES: ESRI WMS - World Aerial Imagery, OpenStreetMap 8 @A @A @A @A @A @A @A @A@A @A @A @A@A @A @A @A @A @A @A @A @A @A @A @A LT-B-18 LT-B-14 LT-B-15 LT-B-16 LT-B-19 LT-B-3 LT-B-2A LT-B-5 LT-B-5A LT-B-7A LT-B-9 LT-B-7LT-B-11 LT-B-12 LT-B-17 LT-B-1 LT-B-10 MW-1 MW-5 MW-6 MW-4 MW-7 MW-2 MW-3 © 2022 Microsoft Corporation © 2022 Maxar ©CNES (2022) Distribution Airbus DS © 2022 TomTom PH. (801) 545-8500 terracon.com 6949 S High Tech Dr, Ste 100 Midvale, UT 84047 Exhibit61217496 Oct 2022 KCT ABF Project No.: Date: Drawn By: Reviewed By: N : \ G I S \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I \ M a p s \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I . a p r x 0 50 10025 Feet © OpenStreetMap (and) contributors, CC-BY-SA Summary of Groundwater Sample Results Lelis Transmissions 845 South Main Street Salt Lake City, UT NOTES: ISL = Utah Department of Environmental Quality Initial Screening Level Tier 1 = Utah Department of Environmental Quality Tier 1 Screening Level 9 Groundwater Analytical Results @A Point 2022 @A 2022 Sampling Point > ISL @A 2020 Sampling Point @A 2020 Sampling Point > Tier 1 @A 2019 Sampling Point @A 2019 Sampling Point > ISL @A 2019 Sampling Point > Tier 1 @A 2019 Sampling Point; Free Product, Not Sampled @A Well Not Installed N : \ G I S \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I \ M a p s \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I \ 6 1 1 7 7 0 8 2 _ L e l i s P h a s e I I L S I . a p r x Exhibit terracon.comPH. 801-545-8500 6949 S High Tech Dr Midvale, UT Reviewed By: Drawn By: Oct 2022 Date: 61217496 Project No.: Lelis Transmissions 845 South Main Street Salt Lake City, Utah Groundwater Gradient Map, June 2022 10 BBB AST DATA SOURCES: ESRI - Basemaps & Former UST Basin @A @A @A @A @A 9 2 f t 91.5 ft 90.5 f t 9 1 . 5 f t 91 f t MW-1 92.32 MW-4 91.46 MW-5 90.64 MW-6 90.25 MW-7 91.60 0 40 8020 Feet @A Groundwater Monitoring Well with Groundwater Elevation (ft), June 2022 Groundwater Contour (ft), June 2022 &Approximate Groundwater Flow Direction APPENDIX B Soil Boring Logs 0.2 0.5 1.5 4.0 7.0 8.5 9.0 15.0 GW: MW-1 SS: MW-1 (8') ASPHALT, black FILL - POORLY GRADED GRAVEL WITH SILT AND SAND (GP-GM), brown, dry, loose, Asphalt base fill material. SILTY CLAY (CL-ML), dark brown, dry, soft to medium stiff SILTY CLAY (CL-ML), with gravel, light gray, dry, medium stiff SILTY CLAY (CL-ML), dark brown, moist, medium stiff GRAVELLY LEAN CLAY (CL), with silt, brown, moist, medium stiff, Loose fine sandy lenses (SP) throughout 7.5 to 9.75'. SANDY GRAVEL (SM), well-graded fine gravel, dark brown, weak odor, moist, medium dense SILTY CLAY (CL-ML), greenish brown, wet, 10.5: Well graded gravel lens. Boring Terminated at 15 Feet 0.0 0.0 0.0 0.0 0.0 0.0 0.2 3.9 54.8 2.1 8.6 8.5 9.6 26.3 8.4 Well completed with 9" flush mount. Hydrated bentointe, 6"-4.5' 16/30 Silica Sand Pack, 4.5'-16.5' 2" Slotted (0.010) PVC Screen, 6.5'-16.5' LOCATION DEPTH The stratification lines represent the approximate transition between differing soil types and/or rock types; in-situ these transitions may be gradual or may occur at different depths than shown. GR A P H I C L O G See Exhibit 2 TH I S B O R I N G L O G I S N O T V A L I D I F S E P A R A T E D F R O M O R I G I N A L R E P O R T . E N V I R O N M E N T A L S M A R T L O G L E L I S L O G S . G P J T E R R A C O N _ D A T A T E M P L A T E . G D T 8 / 1 0 / 2 2 845 South Main Street Salt Lake City, Utah SITE: Page 1 of 1 Advancement Method: Direct Push Abandonment Method: 2" Monitoring well with flush mount Notes: Project No.: 61217496 Task 3.3 Drill Rig: Geoprobe Well Started: 06-06-2022 WELL LOG NO. MW-1 Salt Lake County Brownfields Driller: DPS Well Completed: 06-06-2022 Exhibit: See Appendices for description of laboratory procedures and additional data (if any). CLIENT: See Appendices for description of field procedures. See Appendices for explanation of symbols and abbreviations. PROJECT: Lelis Transmissions B-1 6949 S High Tech Dr Ste 100 Midvale, UT MATERIAL DESCRIPTION OV A / P I D (p p m ) DE P T H ( f t ) 5 10 15 WA T E R L E V E L OB S E R V A T I O N S SA M P L E T Y P E Well Completion: INSTALLATION DETAILS Groundwater encountered approximately Static Groundwater WATER LEVEL OBSERVATIONS 77 77 100 RE C O V E R Y ( % ) 0.2 0.5 5.5 10.0 10.2 13.0 14.0 15.0 GW: MW-4 SS: MW-4 (9') ASPHALT FILL - POORLY GRADED GRAVEL WITH SILT AND SAND (GP-GM), brown, dry, loose, Asphalt base fill material. SILT (ML), well graded, dark brown, dry, medium dense to dense LEAN CLAY WITH SILT (CL), with gravel, light gray, moist, stiff, 7.5': mottled, soft 8.5': Some gravel, light gray, stiff WELL GRADED SAND (SW), brown, wet, loose LEAN CLAY WITH SILT (CL), with gravel, light gray, wet, soft to medium stiff POORLY GRADED GRAVEL WITH SILT AND SAND (GM), light gray, wet, loose to medium dense, Medium coarse gravel LEAN CLAY WITH SILT (CL), well graded, brown, wet, medium dense Boring Terminated at 15 Feet 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.1 0.0 0.1 0.1 0.1 0.1 0.1 0.1 Well completed with 9" flush mount. Hydrated bentointe, 6"-4.5' 16/30 Silica Sand Pack, 4.5'-16.5' 2" Slotted (0.010) PVC Screen, 6.5'-16.5' LOCATION DEPTH The stratification lines represent the approximate transition between differing soil types and/or rock types; in-situ these transitions may be gradual or may occur at different depths than shown. GR A P H I C L O G See Exhibit 2 TH I S B O R I N G L O G I S N O T V A L I D I F S E P A R A T E D F R O M O R I G I N A L R E P O R T . E N V I R O N M E N T A L S M A R T L O G L E L I S L O G S . G P J T E R R A C O N _ D A T A T E M P L A T E . G D T 8 / 1 0 / 2 2 845 South Main Street Salt Lake City, Utah SITE: Page 1 of 1 Advancement Method: Direct Push Abandonment Method: 2" Monitoring well with flush mount Notes: Project No.: 61217496 Task 3.3 Drill Rig: Geoprobe Well Started: 06-06-2022 WELL LOG NO. MW-4 Salt Lake County Brownfields Driller: DPS Well Completed: 06-06-2022 Exhibit: See Appendices for description of laboratory procedures and additional data (if any). CLIENT: See Appendices for description of field procedures. See Appendices for explanation of symbols and abbreviations. PROJECT: Lelis Transmissions B-4 6949 S High Tech Dr Ste 100 Midvale, UT MATERIAL DESCRIPTION OV A / P I D (p p m ) DE P T H ( f t ) 5 10 15 WA T E R L E V E L OB S E R V A T I O N S SA M P L E T Y P E Well Completion: INSTALLATION DETAILS Groundwater encountered approximately Static Groundwater WATER LEVEL OBSERVATIONS 60 67 67 RE C O V E R Y ( % ) 2.0 8.0 8.5 9.0 11.5 12.5 13.0 15.0 SS: MW-5 (0-1') GW: MW-5 POORLY GRADED SAND WITH SILT AND GRAVEL (SP-SM), dark brown, most, loose to medium dense, Roots and organics top 4 inches. SILT (ML), well graded, dark brown to light gray after 3 feet., dry to moist, medium dense POORLY GRADED GRAVEL WITH SILT AND SAND (GP-GM), light brown, moist, loose SILTY CLAY (CL-ML), gray, moist, soft SILT (ML), light gray, moist to wet, stiff, traced loose dark brown sand and fine gravel lenses throughout SILT (ML), well graded, yellowish gray, wet, loose to medium dense WELL GRADED GRAVEL WITH SILT AND SAND (GW-GM), dark gray, wet, medium dense SILTY CLAY (CL-ML), with sandy lenses, greenish gray, wet, medium stiff Boring Terminated at 15 Feet 5.8 3.1 0.0 0.0 0.0 1.4 0.0 0.0 0.0 0.0 2.5 0 0 0 0 Well completed with 9" flush mount. Hydrated bentointe, 6"-4' 16/30 Silica Sand Pack, 4'-16.5' 2" Slotted (0.010) PVC Screen, 6.5'-16.5' LOCATION DEPTH The stratification lines represent the approximate transition between differing soil types and/or rock types; in-situ these transitions may be gradual or may occur at different depths than shown. GR A P H I C L O G See Exhibit 2 TH I S B O R I N G L O G I S N O T V A L I D I F S E P A R A T E D F R O M O R I G I N A L R E P O R T . E N V I R O N M E N T A L S M A R T L O G L E L I S L O G S . G P J T E R R A C O N _ D A T A T E M P L A T E . G D T 8 / 1 0 / 2 2 845 South Main Street Salt Lake City, Utah SITE: Page 1 of 1 Advancement Method: Direct Push Abandonment Method: 2" Monitoring well with flush mount Notes: Project No.: 61217496 Task 3.3 Drill Rig: Geoprobe Well Started: 06-06-2022 WELL LOG NO. MW-5 Salt Lake County Brownfields Driller: DPS Well Completed: 06-06-2022 Exhibit: See Appendices for description of laboratory procedures and additional data (if any). CLIENT: See Appendices for description of field procedures. See Appendices for explanation of symbols and abbreviations. PROJECT: Lelis Transmissions B-5 6949 S High Tech Dr Ste 100 Midvale, UT MATERIAL DESCRIPTION OV A / P I D (p p m ) DE P T H ( f t ) 5 10 15 WA T E R L E V E L OB S E R V A T I O N S SA M P L E T Y P E Well Completion: INSTALLATION DETAILS Groundwater encountered approximately Static Groundwater WATER LEVEL OBSERVATIONS 60 100 100 RE C O V E R Y ( % ) 0.2 0.5 10.5 10.7 15.0 SS: MW-6 (7') GW: MW-6 ASPHALT, Approximately 3 inches asphalt. FILL - POORLY GRADED GRAVEL WITH SILT AND SAND (GP-GM), brown, dry, loose, Asphalt base fill material. SILT (ML), well graded with trace light brown fine sand lenses, dark brown, dry, medium stiff, 3': trace fine sand lenses and moist 5.5': Sandy coarse gravel layer approximately 2" 8': Saturation encountered 8.5': 3" loose fine to medium loose gravel lens. POORLY GRADED GRAVEL WITH SILT AND SAND (GP-GM), fine to coarse gravel lens, dark brown, wet, loose SILTY CLAY (CL-ML), with thin light brown sandy lenses, greenish gray, wet, medium stiff to stiff, 14': 3" Well-graded loose fine gravel with sand lens. Boring Terminated at 15 Feet 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.7 2.3 2.2 13.8 3.2 1.5 Well completed with 9" flush mount. Hydrated bentointe, 6"-3.5' 16/30 Silica Sand Pack, 3.5'-15.5' 2" Slotted (0.010) PVC Screen, 5.5'-15.5' LOCATION DEPTH The stratification lines represent the approximate transition between differing soil types and/or rock types; in-situ these transitions may be gradual or may occur at different depths than shown. GR A P H I C L O G See Exhibit 2 TH I S B O R I N G L O G I S N O T V A L I D I F S E P A R A T E D F R O M O R I G I N A L R E P O R T . E N V I R O N M E N T A L S M A R T L O G L E L I S L O G S . G P J T E R R A C O N _ D A T A T E M P L A T E . G D T 8 / 1 0 / 2 2 845 South Main Street Salt Lake City, Utah SITE: Page 1 of 1 Advancement Method: Direct Push Abandonment Method: 2" Monitoring well with flush mount Notes: Project No.: 61217496 Task 3.3 Drill Rig: Geoprobe Well Started: 06-06-2022 WELL LOG NO. MW-6 Salt Lake County Brownfields Driller: DPS Well Completed: 06-06-2022 Exhibit: See Appendices for description of laboratory procedures and additional data (if any). CLIENT: See Appendices for description of field procedures. See Appendices for explanation of symbols and abbreviations. PROJECT: Lelis Transmissions B-6 6949 S High Tech Dr Ste 100 Midvale, UT MATERIAL DESCRIPTION OV A / P I D (p p m ) DE P T H ( f t ) 5 10 15 WA T E R L E V E L OB S E R V A T I O N S SA M P L E T Y P E Well Completion: INSTALLATION DETAILS Groundwater encountered approximately Static Groundwater WATER LEVEL OBSERVATIONS 73 100 100 RE C O V E R Y ( % ) 0.3 0.7 5.0 10.0 10.5 12.5 15.0 SS: MW-7 (8') GW: MW-7 ASPHALT, Approximately 3 inches asphalt. FILL - POORLY GRADED GRAVEL WITH SILT AND SAND (GP-GM), brown, dry, loose, Asphalt base fill material. SILT (ML), well-graded with fine sandy lenses, dark brown transitioning to light gray, dry to moist, medium dense SILTY CLAY (CL-ML), light brown, moist to wet, soft, 0.5 to 1' intervals of medium stiff very plastic clayey silt. 9': Saturation SILTY CLAY (CL-ML), light gray, wet, very soft SILTY CLAY WITH GRAVEL (CL-ML), light brown, wet, soft to medium stiff, Intervals of medium stiff silty clay with lenses of loose fine sand and gravel. SILTY CLAY (CL-ML), with thin light brown sandy lenses and fine loose gravel lenses, greenish gray, wet, medium stiff Boring Terminated at 15 Feet 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Well completed with 9" flush mount. Hydrated bentointe, 6"-2.5' 16/30 Silica Sand Pack, 2.5'-14.5' 2" Slotted (0.010) PVC Screen, 4.5'-14.5' LOCATION DEPTH The stratification lines represent the approximate transition between differing soil types and/or rock types; in-situ these transitions may be gradual or may occur at different depths than shown. GR A P H I C L O G See Exhibit 2 TH I S B O R I N G L O G I S N O T V A L I D I F S E P A R A T E D F R O M O R I G I N A L R E P O R T . E N V I R O N M E N T A L S M A R T L O G L E L I S L O G S . G P J T E R R A C O N _ D A T A T E M P L A T E . G D T 8 / 1 0 / 2 2 845 South Main Street Salt Lake City, Utah SITE: Page 1 of 1 Advancement Method: Direct Push Abandonment Method: 2" Monitoring well with flush mount Notes: Project No.: 61217496 Task 3.3 Drill Rig: Geoprobe Well Started: 06-06-2022 WELL LOG NO. MW-7 Salt Lake County Brownfields Driller: DPS Well Completed: 06-06-2022 Exhibit: See Appendices for description of laboratory procedures and additional data (if any). CLIENT: See Appendices for description of field procedures. See Appendices for explanation of symbols and abbreviations. PROJECT: Lelis Transmissions B-7 6949 S High Tech Dr Ste 100 Midvale, UT MATERIAL DESCRIPTION OV A / P I D (p p m ) DE P T H ( f t ) 5 10 15 WA T E R L E V E L OB S E R V A T I O N S SA M P L E T Y P E Well Completion: INSTALLATION DETAILS Groundwater encountered approximately Static Groundwater WATER LEVEL OBSERVATIONS 60 87 80 RE C O V E R Y ( % ) APPENDIX C Data Summary Tables Table C1 - Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 Result Q MDL RDL ResultQ MDL RDL ResultQ MDL RDL ResultQMDL RDL TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 766 9.76 50.8 <4.96 0.953 4.96 18.8 1.93 10 1.31 J 1.03 5.38 TPH-GRO 8006-61-9 8015D/GRO mg/kg NE NE 150 1500 240 J 141 385 <0.619 0.227 0.619 <0.626 0.229 0.626 <0.672 0.246 0.672 TRPH 9071B mg/kg NE NE 1000 10000 1060 41.9 127 60 J 40.9 124 86.5 J 41.3 125 52 J 44.4 134 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE <38.5 16 38.5 <0.0619 0.0256 0.0619 <0.0626 0.0259 0.0626 <0.0672 0.0278 0.0672 ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE <7.70 1.56 7.7 <0.0124 0.0025 0.0124 <0.0125 0.00253 0.0125 <0.0134 0.0027 0.0134 BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 <0.770 0.289 0.77 0.000995 J 0.000465 0.00124 0.00653 0.000469 0.00125 0.0206 0.0005 0.0013 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE <0.770 0.212 0.77 <0.00124 0.000341 0.00124 <0.00125 0.000344 0.00125 <0.00134 0.0004 0.0013 BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE <0.770 0.559 0.77 0.00161 0.000898 0.00124 0.000939 J 0.000908 0.00125 0.00167 0.001 0.0013 BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE <0.770 0.326 0.77 <0.00124 0.000525 0.00124 <0.00125 0.000531 0.00125 <0.00134 0.0006 0.0013 BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE <3.85 0.901 3.85 <0.00619 0.00145 0.00619 <0.00626 0.00146 0.00626 <0.00672 0.0016 0.0067 N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE 0.69 J 0.199 0.77 <0.00124 0.00032 0.00124 <0.00125 0.000323 0.00125 <0.00134 0.0003 0.0013 SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE 0.516 J 0.156 0.77 <0.00124 0.000249 0.00124 <0.00125 0.000252 0.00125 <0.00134 0.0003 0.0013 TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE <0.770 0.159 0.77 <0.00124 0.000255 0.00124 <0.00125 0.000258 0.00125 <0.00134 0.0003 0.0013 CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE <0.770 0.191 0.77 <0.00124 0.000307 0.00124 <0.00125 0.00031 0.00125 <0.00134 0.0003 0.0013 CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE <0.770 0.148 0.77 <0.00124 0.000238 0.00124 <0.00125 0.00024 0.00125 <0.00134 0.0003 0.0013 CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE <0.770 0.172 0.77 <0.00124 0.000278 0.00124 <0.00125 0.00028 0.00125 <0.00134 0.0003 0.0013 CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE <3.85 0.77 3.85 <0.00619 0.00124 0.00619 <0.00626 0.00125 0.00626 <0.00672 0.0013 0.0067 CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE <3.85 0.793 3.85 0.0118 0.00128 0.00619 0.009 0.00129 0.00626 0.0116 0.0014 0.0067 CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE <1.92 0.5 1.92 <0.00310 0.000805 0.0031 <0.00313 0.000814 0.00313 <0.00336 0.0009 0.0034 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE <0.770 0.174 0.77 <0.00124 0.000279 0.00124 <0.00125 0.000282 0.00125 <0.00134 0.0003 0.0013 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE <0.770 0.531 0.77 <0.00124 0.000856 0.00124 <0.00125 0.000865 0.00125 <0.00134 0.0009 0.0013 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE <3.85 1.46 3.85 <0.00619 0.00235 0.00619 <0.00626 0.00238 0.00626 <0.00672 0.0026 0.0067 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE <0.770 0.192 0.77 <0.00124 0.00031 0.00124 <0.00125 0.000313 0.00125 <0.00134 0.0003 0.0013 DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE <0.770 0.269 0.77 <0.00124 0.000434 0.00124 <0.00125 0.000438 0.00125 <0.00134 0.0005 0.0013 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE <0.770 0.328 0.77 <0.00124 0.000527 0.00124 <0.00125 0.000532 0.00125 <0.00134 0.0006 0.0013 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE <0.770 0.462 0.77 <0.00124 0.000743 0.00124 <0.00125 0.000751 0.00125 <0.00134 0.0008 0.0013 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE <0.770 0.639 0.77 <0.00124 0.00103 0.00124 <0.00125 0.00104 0.00125 <0.00134 0.0011 0.0013 DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE <3.85 0.22 3.85 <0.00619 0.000356 0.00619 <0.00626 0.000359 0.00626 <0.00672 0.0004 0.0067 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE <0.770 J3 0.206 0.77 <0.00124 0.000332 0.00124 <0.00125 0.000335 0.00125 <0.00134 0.0004 0.0013 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE <0.770 0.346 0.77 <0.00124 0.000558 0.00124 <0.00125 0.000563 0.00125 <0.00134 0.0006 0.0013 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE <0.770 0.274 0.77 <0.00124 0.00044 0.00124 <0.00125 0.000444 0.00125 <0.00134 0.0005 0.0013 CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE <0.770 0.366 0.77 <0.00124 0.000588 0.00124 <0.00125 0.000595 0.00125 <0.00134 0.0006 0.0013 TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE <0.770 0.385 0.77 <0.00124 0.000619 0.00124 <0.00125 0.000626 0.00125 <0.00134 0.0007 0.0013 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE <0.770 0.126 0.77 <0.00124 0.000203 0.00124 <0.00125 0.000205 0.00125 <0.00134 0.0002 0.0013 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE <0.770 0.289 0.77 <0.00124 0.000465 0.00124 <0.00125 0.000469 0.00125 <0.00134 0.0005 0.0013 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE <0.770 0.174 0.77 <0.00124 0.000279 0.00124 <0.00125 0.000282 0.00125 <0.00134 0.0003 0.0013 CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE <0.770 0.328 0.77 <0.00124 0.000527 0.00124 <0.00125 0.000532 0.00125 <0.00134 0.0006 0.0013 TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE <0.770 0.52 0.77 <0.00124 0.000836 0.00124 <0.00125 0.000845 0.00125 <0.00134 0.0009 0.0013 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE <0.770 0.289 0.77 <0.00124 0.000465 0.00124 <0.00125 0.000469 0.00125 <0.00134 0.0005 0.0013 DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE <0.770 J3 J4 0.171 0.77 <0.00124 0.000274 0.00124 <0.00125 0.000277 0.00125 <0.00134 0.0003 0.0013 ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 <0.770 0.231 0.77 <0.00124 0.000372 0.00124 0.0012 J 0.000376 0.00125 0.00484 0.0004 0.0013 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE <0.770 0.263 0.77 <0.00124 0.000424 0.00124 <0.00125 0.000428 0.00125 <0.00134 0.0005 0.0013 ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE <0.770 0.328 0.77 <0.00124 0.000527 0.00124 <0.00125 0.000532 0.00125 <0.00134 0.0006 0.0013 P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE <0.770 0.157 0.77 <0.00124 0.000253 0.00124 <0.00125 0.000255 0.00125 <0.00134 0.0003 0.0013 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE <7.70 3.6 7.7 <0.0124 0.0058 0.0124 <0.0125 0.00586 0.0125 0.00995 J 0.0063 0.0134 L1502586-01 MW-1 (8') 6/6/2022 Client Sample ID Date Collected Lab Sample ID 6/6/2022 6/6/2022 L1502586-04L1502586-02 L1502586-03 MW-5 (0-1') 6/6/2022 MW-6 (7')MW-4 (9') Page 1 of 4 Table C1 - Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 Result Q MDL RDL ResultQ MDL RDL ResultQ MDL RDL ResultQMDL RDL L1502586-01 MW-1 (8') 6/6/2022 Client Sample ID Date Collected Lab Sample ID 6/6/2022 6/6/2022 L1502586-04L1502586-02 L1502586-03 MW-5 (0-1') 6/6/2022 MW-6 (7')MW-4 (9') METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE <3.85 0.77 3.85 <0.00619 0.00124 0.00619 <0.00626 0.00125 0.00626 <0.00672 0.0013 0.0067 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE <7.70 0.731 7.7 <0.0124 0.00118 0.0124 <0.0125 0.00119 0.0125 <0.0134 0.0013 0.0134 METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 <0.770 0.269 0.77 <0.00124 0.000434 0.00124 <0.00125 0.000438 0.00125 <0.00134 0.0005 0.0013 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 <3.85 3.83 3.85 <0.00619 0.00617 0.00619 <0.00626 0.00623 0.00626 0.00863 0.0067 0.0067 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE 0.296 J 0.159 0.77 <0.00124 0.000255 0.00124 <0.00125 0.000258 0.00125 0.000655 J 0.0003 0.0013 STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE <0.770 0.172 0.77 <0.00124 0.000276 0.00124 <0.00125 0.000279 0.00125 <0.00134 0.0003 0.0013 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE <0.770 0.228 0.77 <0.00124 0.000367 0.00124 <0.00125 0.000371 0.00125 <0.00134 0.0004 0.0013 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE <0.770 0.179 0.77 <0.00124 0.000286 0.00124 <0.00125 0.000289 0.00125 <0.00134 0.0003 0.0013 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE <0.770 0.328 0.77 <0.00124 0.000528 0.00124 <0.00125 0.000533 0.00125 <0.00134 0.0006 0.0013 TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE <0.770 0.251 0.77 <0.00124 0.000403 0.00124 <0.00125 0.000407 0.00125 <0.00134 0.0004 0.0013 TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 <3.85 0.947 3.85 <0.00619 0.00152 0.00619 0.00687 0.00154 0.00626 0.0247 0.0017 0.0067 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE <0.770 0.236 0.77 <0.00124 0.000379 0.00124 <0.00125 0.000383 0.00125 <0.00134 0.0004 0.0013 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE <0.770 0.299 0.77 <0.00124 0.000481 0.00124 <0.00125 0.000486 0.00125 <0.00134 0.0005 0.0013 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE <0.770 0.285 0.77 <0.00124 0.000458 0.00124 <0.00125 0.000463 0.00125 <0.00134 0.0005 0.0013 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE <0.770 0.328 0.77 <0.00124 0.000527 0.00124 <0.00125 0.000532 0.00125 <0.00134 0.0006 0.0013 TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE <0.770 0.154 0.77 <0.00124 0.000248 0.00124 <0.00125 0.00025 0.00125 <0.00134 0.0003 0.0013 TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE <3.85 0.274 3.85 <0.00619 0.000441 0.00619 <0.00626 0.000446 0.00626 <0.00672 0.0005 0.0067 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE <1.92 0.188 1.92 <0.00310 0.000302 0.0031 <0.00313 0.000305 0.00313 <0.00336 0.0003 0.0034 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 0.694 J 0.163 0.77 <0.00124 0.000261 0.00124 0.000776 J 0.000264 0.00125 0.00195 0.0003 0.0013 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE <0.770 0.22 0.77 <0.00124 0.000356 0.00124 <0.00125 0.000359 0.00125 0.000781 J 0.0004 0.0013 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE <0.770 0.205 0.77 <0.00124 0.00033 0.00124 <0.00125 0.000333 0.00125 0.000611 J 0.0004 0.0013 VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE <0.770 0.174 0.77 <0.00124 0.00028 0.00124 <0.00125 0.000283 0.00125 <0.00134 0.0003 0.0013 XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 <2.31 0.385 2.31 0.000951 J 0.000619 0.00372 0.00277 J 0.000626 0.00376 0.0108 0.0007 0.004 Qualifiers (Q) J:The identification of the analyte is acceptable; the reported value is an estimate. J3:The associated batch QC was outside the established quality control range for precision. J4: The associated batch QC was outside the established quality control range for accuracy. NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized RDLs (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. Bold value exceeds Method Detection Limit (MDL). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). Page 2 of 4 Table C1 - Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TPH-GRO 8006-61-9 8015D/GRO mg/kg NE NE 150 1500 TRPH 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Client Sample ID Date Collected Lab Sample ID ResultQ MDL RDL Result Q MDL RDL 1.28 J 1.03 5.34 14.5 0.987 5.14 0.531 J 0.244 0.667 <0.642 0.235 0.642 <133 44.1 133 63.1 J 42.4 128 <0.0667 0.0276 0.0667 <0.0642 0.0266 0.0642 <0.0133 0.0027 0.0133 <0.0128 0.00259 0.0128 0.141 0.000501 0.00133 0.00316 0.000481 0.00128 <0.00133 0.000367 0.00133 <0.00128 0.000353 0.00128 0.00162 0.000968 0.00133 <0.00128 0.000931 0.00128 <0.00133 0.000566 0.00133 <0.00128 0.000544 0.00128 <0.00667 0.00156 0.00667 <0.00642 0.0015 0.00642 <0.00133 0.000344 0.00133 <0.00128 0.000331 0.00128 <0.00133 0.000268 0.00133 <0.00128 0.000258 0.00128 <0.00133 0.000275 0.00133 <0.00128 0.000265 0.00128 <0.00133 0.000331 0.00133 <0.00128 0.000318 0.00128 <0.00133 0.000256 0.00133 <0.00128 0.000247 0.00128 <0.00133 0.000299 0.00133 <0.00128 0.000288 0.00128 <0.00667 0.00133 0.00667 <0.00642 0.00128 0.00642 0.0103 0.00137 0.00667 0.00859 0.00132 0.00642 <0.00334 0.000868 0.00334 <0.00321 0.000835 0.00321 <0.00133 0.0003 0.00133 <0.00128 0.000289 0.00128 <0.00133 0.000922 0.00133 <0.00128 0.000887 0.00128 <0.00667 0.00254 0.00667 <0.00642 0.00244 0.00642 <0.00133 0.000334 0.00133 <0.00128 0.000321 0.00128 <0.00133 0.000467 0.00133 <0.00128 0.000449 0.00128 <0.00133 0.000567 0.00133 <0.00128 0.000546 0.00128 <0.00133 0.000801 0.00133 <0.00128 0.00077 0.00128 <0.00133 0.00111 0.00133 <0.00128 0.00107 0.00128 <0.00667 0.000383 0.00667 <0.00642 0.000369 0.00642 <0.00133 0.000358 0.00133 <0.00128 0.000344 0.00128 <0.00133 0.000601 0.00133 <0.00128 0.000578 0.00128 <0.00133 0.000474 0.00133 <0.00128 0.000456 0.00128 <0.00133 0.000634 0.00133 <0.00128 0.00061 0.00128 <0.00133 0.000667 0.00133 <0.00128 0.000642 0.00128 <0.00133 0.000219 0.00133 <0.00128 0.000211 0.00128 <0.00133 0.000501 0.00133 <0.00128 0.000481 0.00128 <0.00133 0.0003 0.00133 <0.00128 0.000289 0.00128 <0.00133 0.000567 0.00133 <0.00128 0.000546 0.00128 <0.00133 0.000901 0.00133 <0.00128 0.000867 0.00128 <0.00133 0.000501 0.00133 <0.00128 0.000481 0.00128 <0.00133 0.000295 0.00133 <0.00128 0.000284 0.00128 0.0146 0.0004 0.00133 0.000526 J 0.000385 0.00128 <0.00133 0.000457 0.00133 <0.00128 0.000439 0.00128 0.00101 J 0.000567 0.00133 <0.00128 0.000546 0.00128 <0.00133 0.000272 0.00133 <0.00128 0.000262 0.00128 <0.0133 0.00625 0.0133 <0.0128 0.00601 0.0128 L1502586-06 SOIL DUP 1 06/06/20226/6/2022 L1502586-05 MW-7 (8') Page 3 of 4 Table C1 - Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 Client Sample ID Date Collected Lab Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q) J:The identification of the analyte is acceptable; the reported value is an estimate. J3:The associated batch QC was outside the established quality control range for precision. J4: The associated batch QC was outside the established quality control range for accuracy. NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized RDLs (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. Bold value exceeds Method Detection Limit (MDL). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). ResultQ MDL RDL Result Q MDL RDL L1502586-06 SOIL DUP 1 06/06/20226/6/2022 L1502586-05 MW-7 (8') <0.00667 0.00133 0.00667 <0.00642 0.00128 0.00642 <0.0133 0.00127 0.0133 <0.0128 0.00122 0.0128 <0.00133 0.000467 0.00133 <0.00128 0.000449 0.00128 0.0454 0.00665 0.00667 <0.00642 0.00639 0.00642 0.00146 0.000275 0.00133 <0.00128 0.000265 0.00128 <0.00133 0.000298 0.00133 <0.00128 0.000286 0.00128 <0.00133 0.000395 0.00133 <0.00128 0.00038 0.00128 <0.00133 0.000308 0.00133 <0.00128 0.000297 0.00128 <0.00133 0.000569 0.00133 <0.00128 0.000547 0.00128 <0.00133 0.000434 0.00133 <0.00128 0.000417 0.00128 0.108 0.00164 0.00667 0.00297 J 0.00158 0.00642 <0.00133 0.000408 0.00133 <0.00128 0.000393 0.00128 <0.00133 0.000518 0.00133 <0.00128 0.000498 0.00128 <0.00133 0.000494 0.00133 <0.00128 0.000475 0.00128 <0.00133 0.000567 0.00133 <0.00128 0.000546 0.00128 <0.00133 0.000267 0.00133 <0.00128 0.000257 0.00128 <0.00667 0.000475 0.00667 <0.00642 0.000457 0.00642 <0.00334 0.000326 0.00334 <0.00321 0.000313 0.00321 0.00651 0.000282 0.00133 0.00033 J V3 0.000271 0.00128 0.00227 0.000383 0.00133 <0.00128 0.000369 0.00128 0.00244 0.000355 0.00133 <0.00128 0.000342 0.00128 <0.00133 0.000302 0.00133 <0.00128 0.00029 0.00128 0.0431 0.000667 0.004 0.00124 J 0.000642 0.00385 Page 4 of 4 Table C2 - Petroleum Hydrocarbons and Volatile Organic Compounds in Groundwater Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte CAS Method Units MCL VISL Residential VISL Commercial ISL Tier 1 UGWQS ResultQ MDL RDL ResultQ MDL RDL ResultQ MDL RDL TPH-DRO 68334-30-5 8015D mg/l NE NE NE 1 10 NE 7.76 0.0247 0.1 1.15 0.0247 0.1 1.68 0.0247 0.1 TPH-GRO 8006-61-9 3511/8015 mg/l NE NE NE 1 10 NE <10.0 2.16 10 <0.500 0.108 0.5 <2.50 0.54 2.5 TRPH 1664A mg/l NE NE NE 10 10 NE 1.89 J 0.806 5.56 <5.00 J6 0.725 5 <5.56 0.806 5.56 ACETONE 67-64-1 8260B mg/l NE 22500 94500 NE NE NE <1.00 0.226 1 <0.0500 0.0113 0.05 <0.250 0.0565 0.25 ACROLEIN 107-02-8 8260B mg/l NE 0.00418 0.0176 NE NE NE <1.00 0.0508 1 <0.0500 0.00254 0.05 <0.250 0.0127 0.25 ACRYLONITRILE 107-13-1 8260B mg/l NE 0.00732 0.032 NE NE NE <0.200 0.0134 0.2 <0.0100 0.000671 0.01 <0.0500 0.00336 0.05 BENZENE 71-43-2 8260B mg/l 0.005 0.00159 0.00693 0.01 0.3 0.005 <0.0200 0.00188 0.02 <0.00100 0.0000941 0.001 <0.00500 0.000471 0.005 BROMOBENZENE 108-86-1 8260B mg/l NE 0.62 2.6 NE NE NE <0.0200 0.00236 0.02 <0.00100 0.000118 0.001 <0.00500 0.00059 0.005 BROMODICHLOROMETHANE 75-27-4 8260B mg/l 0.08 0.000876 0.00382 NE NE NE <0.0200 0.00272 0.02 <0.00100 0.000136 0.001 <0.00500 0.00068 0.005 BROMOFORM 75-25-2 8260B mg/l 0.08 0.117 0.51 NE NE NE <0.0200 J4 0.00258 0.02 <0.00100 J4 0.000129 0.001 <0.00500 J4 0.000645 0.005 BROMOMETHANE 74-83-9 8260B mg/l NE 0.0174 0.073 NE NE NE <0.100 0.0121 0.1 <0.00500 0.000605 0.005 <0.0250 0.00303 0.025 N-BUTYLBENZENE 104-51-8 8260B mg/l NE NE NE NE NE NE <0.0200 0.00314 0.02 <0.00100 0.000157 0.001 <0.00500 0.000785 0.005 SEC-BUTYLBENZENE 135-98-8 8260B mg/l NE NE NE NE NE NE 0.00598 J 0.0025 0.02 <0.00100 0.000125 0.001 <0.00500 0.000625 0.005 TERT-BUTYLBENZENE 98-06-6 8260B mg/l NE NE NE NE NE NE <0.0200 0.00254 0.02 <0.00100 0.000127 0.001 <0.00500 0.000635 0.005 CARBON TETRACHLORIDE 56-23-5 8260B mg/l 0.005 0.000415 0.00181 NE NE 0.005 <0.0200 0.00256 0.02 <0.00100 0.000128 0.001 <0.00500 0.00064 0.005 CHLOROBENZENE 108-90-7 8260B mg/l 0.1 0.41 1.72 NE NE 0.1 0.0135 J 0.00232 0.02 <0.00100 0.000116 0.001 <0.00500 0.00058 0.005 CHLORODIBROMOMETHANE 124-48-1 8260B mg/l 0.08 NE NE NE NE NE <0.0200 J4 0.0028 0.02 <0.00100 J4 0.00014 0.001 <0.00500 J4 0.0007 0.005 CHLOROETHANE 75-00-3 8260B mg/l NE 23 96.5 NE NE NE <0.100 0.00384 0.1 <0.00500 0.000192 0.005 <0.0250 0.00096 0.025 CHLOROFORM 67-66-3 8260B mg/l 0.08 0.000814 0.00355 NE NE NE <0.100 0.00222 0.1 <0.00500 0.000111 0.005 <0.0250 0.000555 0.025 CHLOROMETHANE 74-87-3 8260B mg/l NE 0.26 1.09 NE NE NE <0.0500 0.0192 0.05 <0.00250 0.00096 0.0025 <0.0125 0.0048 0.0125 2-CHLOROTOLUENE 95-49-8 8260B mg/l NE NE NE NE NE NE <0.0200 0.00212 0.02 <0.00100 0.000106 0.001 <0.00500 0.00053 0.005 4-CHLOROTOLUENE 106-43-4 8260B mg/l NE NE NE NE NE NE <0.0200 0.00228 0.02 <0.00100 0.000114 0.001 <0.00500 0.00057 0.005 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/l 0.0002 0.0000281 0.00034 NE NE 0.0002 <0.100 0.00552 0.1 <0.00500 0.000276 0.005 <0.0250 0.00138 0.025 1,2-DIBROMOETHANE 106-93-4 8260B mg/l 0.00005 0.000176 0.000769 NE NE 0.00005 <0.0200 0.00252 0.02 <0.00100 0.000126 0.001 <0.00500 0.00063 0.005 DIBROMOMETHANE 74-95-3 8260B mg/l NE 0.124 0.521 NE NE NE <0.0200 0.00244 0.02 <0.00100 0.000122 0.001 <0.00500 0.00061 0.005 1,2-DICHLOROBENZENE 95-50-1 8260B mg/l 0.6 2.66 11.2 NE NE 0.6 0.0261 0.00214 0.02 <0.00100 0.000107 0.001 <0.00500 0.000535 0.005 1,3-DICHLOROBENZENE 541-73-1 8260B mg/l NE NE NE NE NE NE <0.0200 0.0022 0.02 <0.00100 0.00011 0.001 <0.00500 0.00055 0.005 1,4-DICHLOROBENZENE 106-46-7 8260B mg/l 0.075 0.00259 0.0113 NE NE 0.075 0.00512 J 0.0024 0.02 <0.00100 0.00012 0.001 <0.00500 0.0006 0.005 DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/l NE 0.00744 0.0312 NE NE NE <0.100 0.00748 0.1 <0.00500 0.000374 0.005 <0.0250 0.00187 0.025 1,1-DICHLOROETHANE 75-34-3 8260B mg/l NE 0.00764 0.0334 NE NE NE <0.0200 0.002 0.02 <0.00100 0.0001 0.001 <0.00500 0.0005 0.005 1,2-DICHLOROETHANE 107-06-2 8260B mg/l 0.005 0.00224 0.00978 NE NE 0.005 <0.0200 0.00164 0.02 <0.00100 0.0000819 0.001 <0.00500 0.000409 0.005 1,1-DICHLOROETHENE 75-35-4 8260B mg/l 0.007 0.195 0.821 NE NE 0.007 <0.0200 0.00376 0.02 <0.00100 0.000188 0.001 <0.00500 0.00094 0.005 CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/l 0.07 NE NE NE NE 0.07 0.00486 J 0.00252 0.02 <0.00100 0.000126 0.001 <0.00500 0.00063 0.005 TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/l 0.1 0.109 0.457 NE NE 0.1 <0.0200 0.00298 0.02 <0.00100 0.000149 0.001 <0.00500 0.000745 0.005 1,2-DICHLOROPROPANE 78-87-5 8260B mg/l 0.005 0.00658 0.0287 NE NE 0.005 <0.0200 0.00298 0.02 <0.00100 0.000149 0.001 <0.00500 0.000745 0.005 1,1-DICHLOROPROPENE 563-58-6 8260B mg/l NE NE NE NE NE NE <0.0200 0.00284 0.02 <0.00100 0.000142 0.001 <0.00500 0.00071 0.005 1,3-DICHLOROPROPANE 142-28-9 8260B mg/l NE NE NE NE NE NE <0.0200 0.0022 0.02 <0.00100 0.00011 0.001 <0.00500 0.00055 0.005 CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/l NE NE NE NE NE NE <0.0200 0.00222 0.02 <0.00100 0.000111 0.001 <0.00500 0.000555 0.005 TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/l NE NE NE NE NE NE <0.0200 J4 0.00236 0.02 <0.00100 J4 0.000118 0.001 <0.00500 J4 0.00059 0.005 2,2-DICHLOROPROPANE 594-20-7 8260B mg/l NE NE NE NE NE NE <0.0200 0.00322 0.02 <0.00100 0.000161 0.001 <0.00500 0.000805 0.005 DI-ISOPROPYL ETHER 108-20-3 8260B mg/l NE 6.97 29.3 NE NE NE <0.0200 0.0021 0.02 <0.00100 0.000105 0.001 <0.00500 0.000525 0.005 ETHYLBENZENE 100-41-4 8260B mg/l 0.7 0.00349 0.0152 0.7 4 0.7 <0.0200 0.00274 0.02 <0.00100 0.000137 0.001 <0.00500 0.000685 0.005 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/l NE 0.000303 0.00132 NE NE NE <0.0200 0.00674 0.02 <0.00100 0.000337 0.001 <0.00500 0.00169 0.005 ISOPROPYLBENZENE 98-82-8 8260B mg/l NE 0.887 3.73 NE NE NE 0.00369 J 0.0021 0.02 <0.00100 0.000105 0.001 <0.00500 0.000525 0.005 L1502586-08 L1502586-09 L1502586-10 Client Sample ID Lab Sample ID MW-1 MW-4 06/06/2022Date Collected 06/06/2022 06/06/2022 MW-5 Page 1 of 6 Table C2 - Petroleum Hydrocarbons and Volatile Organic Compounds in Groundwater Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte CAS Method Units MCL VISL Residential VISL Commercial ISL Tier 1 UGWQS ResultQ MDL RDL ResultQ MDL RDL ResultQ MDL RDL L1502586-08 L1502586-09 L1502586-10 Client Sample ID Lab Sample ID MW-1 MW-4 06/06/2022Date Collected 06/06/2022 06/06/2022 MW-5 P-ISOPROPYLTOLUENE 99-87-6 8260B mg/l NE NE NE NE NE NE <0.0200 0.0024 0.02 <0.00100 0.00012 0.001 <0.00500 0.0006 0.005 2-BUTANONE (MEK)78-93-3 8260B mg/l NE 2240 9410 NE NE NE <0.200 0.0238 0.2 <0.0100 0.00119 0.01 <0.0500 0.00595 0.05 METHYLENE CHLORIDE 75-09-2 8260B mg/l 0.005 0.763 9.23 NE NE 0.005 <0.100 0.0086 0.1 <0.00500 0.00043 0.005 <0.0250 0.00215 0.025 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/l NE 555 2330 NE NE NE <0.200 0.00956 0.2 <0.0100 0.000478 0.01 <0.0500 0.00239 0.05 METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/l NE 0.45 1.97 0.2 0.2 NE <0.0200 0.00202 0.02 <0.00100 0.000101 0.001 <0.00500 0.000505 0.005 NAPHTHALENE 91-20-3 8260B mg/l NE 0.00459 0.0201 0.7 0.7 NE 0.0784 J 0.02 0.1 <0.00500 0.001 0.005 <0.0250 0.005 0.025 N-PROPYLBENZENE 103-65-1 8260B mg/l NE 2.43 10.2 NE NE NE 0.0099 J 0.00199 0.02 <0.00100 0.0000993 0.001 <0.00500 0.000497 0.005 STYRENE 100-42-5 8260B mg/l 0.1 9.28 39 NE NE 0.1 <0.0200 0.00236 0.02 <0.00100 0.000118 0.001 <0.00500 0.00059 0.005 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/l NE 0.00371 0.0162 NE NE NE <0.0200 0.00294 0.02 <0.00100 0.000147 0.001 <0.00500 0.000735 0.005 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/l NE 0.00323 0.0141 NE NE NE <0.0200 0.00266 0.02 <0.00100 0.000133 0.001 <0.00500 0.000665 0.005 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/l NE 0.242 1.02 NE NE NE <0.0200 0.0036 0.02 <0.00100 0.00018 0.001 <0.00500 0.0009 0.005 TETRACHLOROETHENE 127-18-4 8260B mg/l 0.005 0.0149 0.0652 NE NE 0.005 <0.0200 0.006 0.02 <0.00100 0.0003 0.001 <0.00500 0.0015 0.005 TOLUENE 108-88-3 8260B mg/l 1 19.2 80.7 1 3 1 <0.0200 0.00556 0.02 <0.00100 0.000278 0.001 <0.00500 0.00139 0.005 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/l NE NE NE NE NE NE <0.0200 0.0046 0.02 <0.00100 0.00023 0.001 <0.00500 0.00115 0.005 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/l 0.07 0.0359 0.151 NE NE 0.07 <0.0200 0.00962 0.02 <0.00100 0.000481 0.001 <0.00500 0.00241 0.005 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/l 0.2 7.42 31.1 NE NE 0.2 <0.0200 0.00298 0.02 <0.00100 0.000149 0.001 <0.00500 0.000745 0.005 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/l 0.005 0.00521 0.0228 NE NE 0.005 <0.0200 0.00316 0.02 <0.00100 0.000158 0.001 <0.00500 0.00079 0.005 TRICHLOROETHENE 79-01-6 8260B mg/l 0.005 0.00119 0.00743 NE NE 0.005 <0.0200 0.0038 0.02 <0.00100 0.00019 0.001 <0.00500 0.00095 0.005 TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/l NE NE NE NE NE NE <0.100 0.0032 0.1 <0.00500 0.00016 0.005 <0.0250 0.0008 0.025 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/l NE 0.0223 0.0937 NE NE NE <0.0500 0.00474 0.05 <0.00250 0.000237 0.0025 <0.0125 0.00119 0.0125 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/l NE 0.248 1.04 NE NE NE 0.0621 0.00644 0.02 <0.00100 0.000322 0.001 <0.00500 0.00161 0.005 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/l NE 0.351 1.47 NE NE NE 0.0404 0.00208 0.02 <0.00100 0.000104 0.001 <0.00500 0.00052 0.005 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/l NE 0.175 0.733 NE NE NE 0.00996 J 0.00208 0.02 <0.00100 0.000104 0.001 <0.00500 0.00052 0.005 VINYL CHLORIDE 75-01-4 8260B mg/l 0.002 0.000147 0.00245 NE NE 0.002 <0.0200 0.00468 0.02 <0.00100 0.000234 0.001 <0.00500 0.00117 0.005 XYLENES, TOTAL 1330-20-7 8260B mg/l 10 0.385 1.62 10 10 10 0.0108 J 0.00348 0.06 <0.00300 0.000174 0.003 <0.0150 0.00087 0.015 2-CHLOROETHYL VINYL ETHER 111-75-8 8260B mg/l NE NE NE NE NE NE <1.00 0.0115 1 <0.0500 0.000575 0.05 <0.250 0.00288 0.25 NE:Not established.<:Less than Reported Detection Limit (RDL).mg/l: Milligrams per liter.NA: Not Analyzed. Bold value exceeds Method Detection Limit (MDL). Color shaded value exceeds screening level. Italized results -Reported Detection Limits (RDLs) exceed a screening level. Utah Department of Environmental Quality, Division of Environmental Response and Remediation Initial Screening Levels (ISL) and risk- based Tier 1 Screening Levels (Tier 1) for releases at leaking underground storage tank sites. UGWQS: Utah Ground Water Quality Standards Qualifiers:J: The identification of the analyte is acceptable; the reported value is an estimate.J4: The associated batch QC was outside the established quality control range for accuracy.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. MCL - U.S. Environmental Protection Agency's (EPA's) May 2022 Maximum Contaminant Levels (MCLs) for drinking water. VISL - EPA's May 2022 Target Groundwater Concentration Vapor Intrusion Screening Levels (VISLs) for groundwater at residential and commercial properties (Target Cancer Risk = 1E-06; Target Hazard Quotient =1). Page 2 of 6 Table C2 - Petroleum Hydrocarbons and Volatile Organic Compounds in Groundwater Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte CAS Method Units MCL VISL Residential VISL Commercial ISL Tier 1 UGWQS TPH-DRO 68334-30-5 8015D mg/l NE NE NE 1 10 NE TPH-GRO 8006-61-9 3511/8015 mg/l NE NE NE 1 10 NE TRPH 1664A mg/l NE NE NE 10 10 NE ACETONE 67-64-1 8260B mg/l NE 22500 94500 NE NE NE ACROLEIN 107-02-8 8260B mg/l NE 0.00418 0.0176 NE NE NE ACRYLONITRILE 107-13-1 8260B mg/l NE 0.00732 0.032 NE NE NE BENZENE 71-43-2 8260B mg/l 0.005 0.00159 0.00693 0.01 0.3 0.005 BROMOBENZENE 108-86-1 8260B mg/l NE 0.62 2.6 NE NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/l 0.08 0.000876 0.00382 NE NE NE BROMOFORM 75-25-2 8260B mg/l 0.08 0.117 0.51 NE NE NE BROMOMETHANE 74-83-9 8260B mg/l NE 0.0174 0.073 NE NE NE N-BUTYLBENZENE 104-51-8 8260B mg/l NE NE NE NE NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/l NE NE NE NE NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/l NE NE NE NE NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/l 0.005 0.000415 0.00181 NE NE 0.005 CHLOROBENZENE 108-90-7 8260B mg/l 0.1 0.41 1.72 NE NE 0.1 CHLORODIBROMOMETHANE 124-48-1 8260B mg/l 0.08 NE NE NE NE NE CHLOROETHANE 75-00-3 8260B mg/l NE 23 96.5 NE NE NE CHLOROFORM 67-66-3 8260B mg/l 0.08 0.000814 0.00355 NE NE NE CHLOROMETHANE 74-87-3 8260B mg/l NE 0.26 1.09 NE NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/l NE NE NE NE NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/l NE NE NE NE NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/l 0.0002 0.0000281 0.00034 NE NE 0.0002 1,2-DIBROMOETHANE 106-93-4 8260B mg/l 0.00005 0.000176 0.000769 NE NE 0.00005 DIBROMOMETHANE 74-95-3 8260B mg/l NE 0.124 0.521 NE NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/l 0.6 2.66 11.2 NE NE 0.6 1,3-DICHLOROBENZENE 541-73-1 8260B mg/l NE NE NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/l 0.075 0.00259 0.0113 NE NE 0.075 DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/l NE 0.00744 0.0312 NE NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/l NE 0.00764 0.0334 NE NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/l 0.005 0.00224 0.00978 NE NE 0.005 1,1-DICHLOROETHENE 75-35-4 8260B mg/l 0.007 0.195 0.821 NE NE 0.007 CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/l 0.07 NE NE NE NE 0.07 TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/l 0.1 0.109 0.457 NE NE 0.1 1,2-DICHLOROPROPANE 78-87-5 8260B mg/l 0.005 0.00658 0.0287 NE NE 0.005 1,1-DICHLOROPROPENE 563-58-6 8260B mg/l NE NE NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/l NE NE NE NE NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/l NE NE NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/l NE NE NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/l NE NE NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/l NE 6.97 29.3 NE NE NE ETHYLBENZENE 100-41-4 8260B mg/l 0.7 0.00349 0.0152 0.7 4 0.7 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/l NE 0.000303 0.00132 NE NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/l NE 0.887 3.73 NE NE NE Client Sample ID Lab Sample ID Date Collected ResultQ MDL RDL ResultQ MDL RDL 8.59 0.0247 0.1 0.144 0.0247 0.1 <0.500 0.108 0.5 <0.500 0.108 0.5 3.37 J 0.763 5.26 <5.56 0.806 5.56 <0.0500 0.0113 0.05 <0.0500 0.0113 0.05 <0.0500 0.00254 0.05 <0.0500 0.00254 0.05 <0.0100 0.000671 0.01 <0.0100 0.000671 0.01 0.0183 0.0000941 0.001 <0.00100 0.0000941 0.001 <0.00100 0.000118 0.001 <0.00100 0.000118 0.001 <0.00100 0.000136 0.001 <0.00100 0.000136 0.001 <0.00100 J4 0.000129 0.001 <0.00100 J4 0.000129 0.001 <0.00500 0.000605 0.005 <0.00500 0.000605 0.005 <0.00100 0.000157 0.001 <0.00100 0.000157 0.001 0.000193 J 0.000125 0.001 <0.00100 0.000125 0.001 0.000595 J 0.000127 0.001 <0.00100 0.000127 0.001 <0.00100 0.000128 0.001 <0.00100 0.000128 0.001 0.00321 0.000116 0.001 <0.00100 0.000116 0.001 <0.00100 J4 0.00014 0.001 <0.00100 J4 0.00014 0.001 <0.00500 0.000192 0.005 <0.00500 0.000192 0.005 <0.00500 0.000111 0.005 <0.00500 0.000111 0.005 <0.00250 0.00096 0.0025 <0.00250 0.00096 0.0025 <0.00100 0.000106 0.001 <0.00100 0.000106 0.001 <0.00100 0.000114 0.001 <0.00100 0.000114 0.001 <0.00500 0.000276 0.005 <0.00500 0.000276 0.005 <0.00100 0.000126 0.001 <0.00100 0.000126 0.001 <0.00100 0.000122 0.001 <0.00100 0.000122 0.001 0.00187 0.000107 0.001 <0.00100 0.000107 0.001 <0.00100 0.00011 0.001 <0.00100 0.00011 0.001 0.000377 J 0.00012 0.001 <0.00100 0.00012 0.001 <0.00500 0.000374 0.005 <0.00500 0.000374 0.005 <0.00100 0.0001 0.001 <0.00100 0.0001 0.001 <0.00100 0.0000819 0.001 <0.00100 0.0000819 0.001 <0.00100 0.000188 0.001 <0.00100 0.000188 0.001 0.000198 J 0.000126 0.001 <0.00100 0.000126 0.001 <0.00100 0.000149 0.001 <0.00100 0.000149 0.001 <0.00100 0.000149 0.001 <0.00100 0.000149 0.001 <0.00100 0.000142 0.001 <0.00100 0.000142 0.001 <0.00100 0.00011 0.001 <0.00100 0.00011 0.001 <0.00100 0.000111 0.001 <0.00100 0.000111 0.001 <0.00100 J4 0.000118 0.001 <0.00100 J4 0.000118 0.001 <0.00100 0.000161 0.001 <0.00100 0.000161 0.001 0.000155 J 0.000105 0.001 <0.00100 0.000105 0.001 <0.00100 0.000137 0.001 <0.00100 0.000137 0.001 <0.00100 0.000337 0.001 <0.00100 0.000337 0.001 0.000248 J 0.000105 0.001 <0.00100 0.000105 0.001 L1502586-12L1502586-11 06/06/2022 MW-7MW-6 06/06/2022 Page 3 of 6 Table C2 - Petroleum Hydrocarbons and Volatile Organic Compounds in Groundwater Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte CAS Method Units MCL VISL Residential VISL Commercial ISL Tier 1 UGWQS TPH-DRO 68334-30-5 8015D mg/l NE NE NE 1 10 NE Client Sample ID Lab Sample ID Date Collected P-ISOPROPYLTOLUENE 99-87-6 8260B mg/l NE NE NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/l NE 2240 9410 NE NE NE METHYLENE CHLORIDE 75-09-2 8260B mg/l 0.005 0.763 9.23 NE NE 0.005 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/l NE 555 2330 NE NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/l NE 0.45 1.97 0.2 0.2 NE NAPHTHALENE 91-20-3 8260B mg/l NE 0.00459 0.0201 0.7 0.7 NE N-PROPYLBENZENE 103-65-1 8260B mg/l NE 2.43 10.2 NE NE NE STYRENE 100-42-5 8260B mg/l 0.1 9.28 39 NE NE 0.1 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/l NE 0.00371 0.0162 NE NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/l NE 0.00323 0.0141 NE NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/l NE 0.242 1.02 NE NE NE TETRACHLOROETHENE 127-18-4 8260B mg/l 0.005 0.0149 0.0652 NE NE 0.005 TOLUENE 108-88-3 8260B mg/l 1 19.2 80.7 1 3 1 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/l NE NE NE NE NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/l 0.07 0.0359 0.151 NE NE 0.07 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/l 0.2 7.42 31.1 NE NE 0.2 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/l 0.005 0.00521 0.0228 NE NE 0.005 TRICHLOROETHENE 79-01-6 8260B mg/l 0.005 0.00119 0.00743 NE NE 0.005 TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/l NE NE NE NE NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/l NE 0.0223 0.0937 NE NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/l NE 0.248 1.04 NE NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/l NE 0.351 1.47 NE NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/l NE 0.175 0.733 NE NE NE VINYL CHLORIDE 75-01-4 8260B mg/l 0.002 0.000147 0.00245 NE NE 0.002 XYLENES, TOTAL 1330-20-7 8260B mg/l 10 0.385 1.62 10 10 10 2-CHLOROETHYL VINYL ETHER 111-75-8 8260B mg/l NE NE NE NE NE NE NE:Not established.<:Less than Reported Detection Limit (RDL).mg/l: Milligrams per liter.NA: Not Analyzed. Bold value exceeds Method Detection Limit (MDL). Color shaded value exceeds screening level. Italized results -Reported Detection Limits (RDLs) exceed a screening level. Utah Department of Environmental Quality, Division of Environmental Response and Remediation Initial Screening Levels (ISL) and risk- based Tier 1 Screening Levels (Tier 1) for releases at leaking underground storage tank sites. UGWQS: Utah Ground Water Quality Standards Qualifiers:J: The identification of the analyte is acceptable; the reported value is an estimate.J4: The associated batch QC was outside the established quality control range for accuracy.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. MCL - U.S. Environmental Protection Agency's (EPA's) May 2022 Maximum Contaminant Levels (MCLs) for drinking water. VISL - EPA's May 2022 Target Groundwater Concentration Vapor Intrusion Screening Levels (VISLs) for groundwater at residential and commercial properties (Target Cancer Risk = 1E-06; Target Hazard Quotient =1). ResultQ MDL RDL ResultQ MDL RDL L1502586-12L1502586-11 06/06/2022 MW-7MW-6 06/06/2022 <0.00100 0.00012 0.001 <0.00100 0.00012 0.001 <0.0100 0.00119 0.01 <0.0100 0.00119 0.01 <0.00500 0.00043 0.005 <0.00500 0.00043 0.005 <0.0100 0.000478 0.01 <0.0100 0.000478 0.01 <0.00100 0.000101 0.001 <0.00100 0.000101 0.001 <0.00500 0.001 0.005 <0.00500 0.001 0.005 0.000197 J 0.0000993 0.001 <0.00100 0.0000993 0.001 <0.00100 0.000118 0.001 <0.00100 0.000118 0.001 <0.00100 0.000147 0.001 <0.00100 0.000147 0.001 <0.00100 0.000133 0.001 <0.00100 0.000133 0.001 <0.00100 0.00018 0.001 <0.00100 0.00018 0.001 <0.00100 0.0003 0.001 <0.00100 0.0003 0.001 0.000301 J 0.000278 0.001 <0.00100 0.000278 0.001 <0.00100 0.00023 0.001 <0.00100 0.00023 0.001 <0.00100 0.000481 0.001 <0.00100 0.000481 0.001 <0.00100 0.000149 0.001 <0.00100 0.000149 0.001 <0.00100 0.000158 0.001 <0.00100 0.000158 0.001 <0.00100 0.00019 0.001 <0.00100 0.00019 0.001 <0.00500 0.00016 0.005 <0.00500 0.00016 0.005 <0.00250 0.000237 0.0025 <0.00250 0.000237 0.0025 <0.00100 0.000322 0.001 <0.00100 0.000322 0.001 <0.00100 0.000104 0.001 <0.00100 0.000104 0.001 <0.00100 0.000104 0.001 <0.00100 0.000104 0.001 <0.00100 0.000234 0.001 <0.00100 0.000234 0.001 <0.00300 0.000174 0.003 <0.00300 0.000174 0.003 <0.0500 0.000575 0.05 <0.0500 0.000575 0.05 Page 4 of 6 Table C2 - Petroleum Hydrocarbons and Volatile Organic Compounds in Groundwater Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte CAS Method Units MCL VISL Residential VISL Commercial ISL Tier 1 UGWQS TPH-DRO 68334-30-5 8015D mg/l NE NE NE 1 10 NE TPH-GRO 8006-61-9 3511/8015 mg/l NE NE NE 1 10 NE TRPH 1664A mg/l NE NE NE 10 10 NE ACETONE 67-64-1 8260B mg/l NE 22500 94500 NE NE NE ACROLEIN 107-02-8 8260B mg/l NE 0.00418 0.0176 NE NE NE ACRYLONITRILE 107-13-1 8260B mg/l NE 0.00732 0.032 NE NE NE BENZENE 71-43-2 8260B mg/l 0.005 0.00159 0.00693 0.01 0.3 0.005 BROMOBENZENE 108-86-1 8260B mg/l NE 0.62 2.6 NE NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/l 0.08 0.000876 0.00382 NE NE NE BROMOFORM 75-25-2 8260B mg/l 0.08 0.117 0.51 NE NE NE BROMOMETHANE 74-83-9 8260B mg/l NE 0.0174 0.073 NE NE NE N-BUTYLBENZENE 104-51-8 8260B mg/l NE NE NE NE NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/l NE NE NE NE NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/l NE NE NE NE NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/l 0.005 0.000415 0.00181 NE NE 0.005 CHLOROBENZENE 108-90-7 8260B mg/l 0.1 0.41 1.72 NE NE 0.1 CHLORODIBROMOMETHANE 124-48-1 8260B mg/l 0.08 NE NE NE NE NE CHLOROETHANE 75-00-3 8260B mg/l NE 23 96.5 NE NE NE CHLOROFORM 67-66-3 8260B mg/l 0.08 0.000814 0.00355 NE NE NE CHLOROMETHANE 74-87-3 8260B mg/l NE 0.26 1.09 NE NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/l NE NE NE NE NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/l NE NE NE NE NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/l 0.0002 0.0000281 0.00034 NE NE 0.0002 1,2-DIBROMOETHANE 106-93-4 8260B mg/l 0.00005 0.000176 0.000769 NE NE 0.00005 DIBROMOMETHANE 74-95-3 8260B mg/l NE 0.124 0.521 NE NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/l 0.6 2.66 11.2 NE NE 0.6 1,3-DICHLOROBENZENE 541-73-1 8260B mg/l NE NE NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/l 0.075 0.00259 0.0113 NE NE 0.075 DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/l NE 0.00744 0.0312 NE NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/l NE 0.00764 0.0334 NE NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/l 0.005 0.00224 0.00978 NE NE 0.005 1,1-DICHLOROETHENE 75-35-4 8260B mg/l 0.007 0.195 0.821 NE NE 0.007 CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/l 0.07 NE NE NE NE 0.07 TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/l 0.1 0.109 0.457 NE NE 0.1 1,2-DICHLOROPROPANE 78-87-5 8260B mg/l 0.005 0.00658 0.0287 NE NE 0.005 1,1-DICHLOROPROPENE 563-58-6 8260B mg/l NE NE NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/l NE NE NE NE NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/l NE NE NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/l NE NE NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/l NE NE NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/l NE 6.97 29.3 NE NE NE ETHYLBENZENE 100-41-4 8260B mg/l 0.7 0.00349 0.0152 0.7 4 0.7 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/l NE 0.000303 0.00132 NE NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/l NE 0.887 3.73 NE NE NE Client Sample ID Lab Sample ID Date Collected ResultQMDL RDL ResultQ MDL RDL 1.59 0.0247 0.1 0.0573 J 0.0247 0.1 <2.50 0.54 2.5 <0.500 0.108 0.5 <5.88 0.853 5.88 NA <0.250 0.0565 0.25 <0.0500 0.0113 0.05 <0.250 0.0127 0.25 <0.0500 0.00254 0.05 <0.0500 0.00336 0.05 <0.0100 0.000671 0.01 <0.00500 0.00047 0.005 <0.00100 0.0000941 0.001 <0.00500 0.00059 0.005 <0.00100 0.000118 0.001 <0.00500 0.00068 0.005 <0.00100 0.000136 0.001 <0.00500 J4 0.00065 0.005 <0.00100 J4 0.000129 0.001 <0.0250 0.00303 0.025 <0.00500 0.000605 0.005 <0.00500 0.00079 0.005 <0.00100 0.000157 0.001 <0.00500 0.00063 0.005 <0.00100 0.000125 0.001 <0.00500 0.00064 0.005 <0.00100 0.000127 0.001 <0.00500 0.00064 0.005 <0.00100 0.000128 0.001 <0.00500 0.00058 0.005 <0.00100 0.000116 0.001 <0.00500 J4 0.0007 0.005 <0.00100 J4 0.00014 0.001 <0.0250 0.00096 0.025 <0.00500 0.000192 0.005 <0.0250 0.00056 0.025 <0.00500 0.000111 0.005 <0.0125 0.0048 0.0125 <0.00250 0.00096 0.0025 <0.00500 0.00053 0.005 <0.00100 0.000106 0.001 <0.00500 0.00057 0.005 <0.00100 0.000114 0.001 <0.0250 0.00138 0.025 <0.00500 0.000276 0.005 <0.00500 0.00063 0.005 <0.00100 0.000126 0.001 <0.00500 0.00061 0.005 <0.00100 0.000122 0.001 <0.00500 0.00054 0.005 <0.00100 0.000107 0.001 <0.00500 0.00055 0.005 <0.00100 0.00011 0.001 <0.00500 0.0006 0.005 <0.00100 0.00012 0.001 <0.0250 0.00187 0.025 <0.00500 0.000374 0.005 <0.00500 0.0005 0.005 <0.00100 0.0001 0.001 <0.00500 0.00041 0.005 <0.00100 0.0000819 0.001 <0.00500 0.00094 0.005 <0.00100 0.000188 0.001 <0.00500 0.00063 0.005 <0.00100 0.000126 0.001 <0.00500 0.00075 0.005 <0.00100 0.000149 0.001 <0.00500 0.00075 0.005 <0.00100 0.000149 0.001 <0.00500 0.00071 0.005 <0.00100 0.000142 0.001 <0.00500 0.00055 0.005 <0.00100 0.00011 0.001 <0.00500 0.00056 0.005 <0.00100 0.000111 0.001 <0.00500 J4 0.00059 0.005 <0.00100 J4 0.000118 0.001 <0.00500 0.00081 0.005 <0.00100 0.000161 0.001 <0.00500 0.00053 0.005 <0.00100 0.000105 0.001 <0.00500 0.00069 0.005 <0.00100 0.000137 0.001 <0.00500 0.00169 0.005 <0.00100 0.000337 0.001 <0.00500 0.00053 0.005 <0.00100 0.000105 0.001 L1502586-07L1502586-14 TRIP BLANK 06/06/2022 WATER DUP 06/06/2022 Page 5 of 6 Table C2 - Petroleum Hydrocarbons and Volatile Organic Compounds in Groundwater Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte CAS Method Units MCL VISL Residential VISL Commercial ISL Tier 1 UGWQS TPH-DRO 68334-30-5 8015D mg/l NE NE NE 1 10 NE Client Sample ID Lab Sample ID Date Collected P-ISOPROPYLTOLUENE 99-87-6 8260B mg/l NE NE NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/l NE 2240 9410 NE NE NE METHYLENE CHLORIDE 75-09-2 8260B mg/l 0.005 0.763 9.23 NE NE 0.005 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/l NE 555 2330 NE NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/l NE 0.45 1.97 0.2 0.2 NE NAPHTHALENE 91-20-3 8260B mg/l NE 0.00459 0.0201 0.7 0.7 NE N-PROPYLBENZENE 103-65-1 8260B mg/l NE 2.43 10.2 NE NE NE STYRENE 100-42-5 8260B mg/l 0.1 9.28 39 NE NE 0.1 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/l NE 0.00371 0.0162 NE NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/l NE 0.00323 0.0141 NE NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/l NE 0.242 1.02 NE NE NE TETRACHLOROETHENE 127-18-4 8260B mg/l 0.005 0.0149 0.0652 NE NE 0.005 TOLUENE 108-88-3 8260B mg/l 1 19.2 80.7 1 3 1 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/l NE NE NE NE NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/l 0.07 0.0359 0.151 NE NE 0.07 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/l 0.2 7.42 31.1 NE NE 0.2 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/l 0.005 0.00521 0.0228 NE NE 0.005 TRICHLOROETHENE 79-01-6 8260B mg/l 0.005 0.00119 0.00743 NE NE 0.005 TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/l NE NE NE NE NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/l NE 0.0223 0.0937 NE NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/l NE 0.248 1.04 NE NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/l NE 0.351 1.47 NE NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/l NE 0.175 0.733 NE NE NE VINYL CHLORIDE 75-01-4 8260B mg/l 0.002 0.000147 0.00245 NE NE 0.002 XYLENES, TOTAL 1330-20-7 8260B mg/l 10 0.385 1.62 10 10 10 2-CHLOROETHYL VINYL ETHER 111-75-8 8260B mg/l NE NE NE NE NE NE NE:Not established.<:Less than Reported Detection Limit (RDL).mg/l: Milligrams per liter.NA: Not Analyzed. Bold value exceeds Method Detection Limit (MDL). Color shaded value exceeds screening level. Italized results -Reported Detection Limits (RDLs) exceed a screening level. Utah Department of Environmental Quality, Division of Environmental Response and Remediation Initial Screening Levels (ISL) and risk- based Tier 1 Screening Levels (Tier 1) for releases at leaking underground storage tank sites. UGWQS: Utah Ground Water Quality Standards Qualifiers:J: The identification of the analyte is acceptable; the reported value is an estimate.J4: The associated batch QC was outside the established quality control range for accuracy.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. MCL - U.S. Environmental Protection Agency's (EPA's) May 2022 Maximum Contaminant Levels (MCLs) for drinking water. VISL - EPA's May 2022 Target Groundwater Concentration Vapor Intrusion Screening Levels (VISLs) for groundwater at residential and commercial properties (Target Cancer Risk = 1E-06; Target Hazard Quotient =1). ResultQMDL RDL ResultQ MDL RDL L1502586-07L1502586-14 TRIP BLANK 06/06/2022 WATER DUP 06/06/2022 <0.00500 0.0006 0.005 <0.00100 0.00012 0.001 <0.0500 0.00595 0.05 <0.0100 0.00119 0.01 <0.0250 0.00215 0.025 <0.00500 0.00043 0.005 <0.0500 0.00239 0.05 <0.0100 0.000478 0.01 <0.00500 0.00051 0.005 <0.00100 0.000101 0.001 <0.0250 0.005 0.025 <0.00500 0.001 0.005 <0.00500 0.0005 0.005 <0.00100 0.0000993 0.001 <0.00500 0.00059 0.005 <0.00100 0.000118 0.001 <0.00500 0.00074 0.005 <0.00100 0.000147 0.001 <0.00500 0.00067 0.005 <0.00100 0.000133 0.001 <0.00500 0.0009 0.005 <0.00100 0.00018 0.001 <0.00500 0.0015 0.005 <0.00100 0.0003 0.001 <0.00500 0.00139 0.005 <0.00100 0.000278 0.001 <0.00500 0.00115 0.005 <0.00100 0.00023 0.001 <0.00500 0.00241 0.005 <0.00100 0.000481 0.001 <0.00500 0.00075 0.005 <0.00100 0.000149 0.001 <0.00500 0.00079 0.005 <0.00100 0.000158 0.001 <0.00500 0.00095 0.005 <0.00100 0.00019 0.001 <0.0250 0.0008 0.025 <0.00500 0.00016 0.005 <0.0125 0.00119 0.0125 <0.00250 0.000237 0.0025 <0.00500 0.00161 0.005 <0.00100 0.000322 0.001 <0.00500 0.00052 0.005 <0.00100 0.000104 0.001 <0.00500 0.00052 0.005 <0.00100 0.000104 0.001 <0.00500 0.00117 0.005 <0.00100 0.000234 0.001 <0.0150 0.00087 0.015 <0.00300 0.000174 0.003 <0.250 0.00288 0.25 <0.0500 0.000575 0.05 Page 6 of 6 Table C3.1 - Duplicate Pair - Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte Method Units Result Q High Limit High Limit Type Dilution Factor Result Q High Limit High Limit Type Dilution Factor Results 5 x RDL?RPD RPD Within +/- 50% for Soil? TPH-DRO 8015 mg/kg 18.8 10 RDL 2 14.5 5.14 RDL 1 No, Original and Duplicate results both < 5 x RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample results was less than 2 x RDL. TPH-GRO 8015D/GRO mg/kg ND 0.626 RDL 1 ND 0.642 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. TRPH 9071B mg/kg 86.5 J 125 RDL 1 63.1 J 128 RDL 1 No, Original and Duplicate results both < 5 x RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample results was less than 2 x RDL. ACETONE 8260B mg/kg ND 0.0626 RDL 1 ND 0.0642 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. ACRYLONITRILE 8260B mg/kg ND 0.0125 RDL 1 ND 0.0128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. BENZENE 8260B mg/kg 0.00653 0.00125 RDL 1 0.00316 0.00128 RDL 1 No, Original and Duplicate results both < 5 x RDL, RPD not calculated.Field Duplicate pair not within control because the difference between the Original and Duplicate sample results was greater than 2 x RDL. BROMOBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. BROMODICHLOROMETHANE 8260B mg/kg 0.000939 J 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original < 5X RDL, but Duplicate < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample results (using 1/2 RDL as conservative estimate for ND) was less than 2 x RDL. BROMOFORM 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. BROMOMETHANE 8260B mg/kg ND 0.00626 RDL 1 ND 0.00642 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. N-BUTYLBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. SEC-BUTYLBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. TERT-BUTYLBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. Original Sample Duplicate Sample Client Sample ID MW-5 (0-1')Soil DUP 1 Date Collected 6/6/2022 6/6/2022 Lab Sample ID L1502586-03 L1502586-06 Page 1 of 5 Table C3.1 - Duplicate Pair - Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 CARBON TETRACHLORIDE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. CHLOROBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. CHLORODIBROMOMETHANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. CHLOROETHANE 8260B mg/kg ND 0.00626 RDL 1 ND 0.00642 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. CHLOROFORM 8260B mg/kg 0.009 0.00626 RDL 1 0.00859 0.00642 RDL 1 No, Original and Duplicate results both < 5 x RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample results was less than 2 x RDL. CHLOROMETHANE 8260B mg/kg ND 0.00313 RDL 1 ND 0.00321 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 2-CHLOROTOLUENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 4-CHLOROTOLUENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,2-DIBROMO-3-CHLOROPROPANE 8260B mg/kg ND 0.00626 RDL 1 ND 0.00642 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,2-DIBROMOETHANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. DIBROMOMETHANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,2-DICHLOROBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,3-DICHLOROBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,4-DICHLOROBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. DICHLORODIFLUOROMETHANE 8260B mg/kg ND 0.00626 RDL 1 ND 0.00642 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,1-DICHLOROETHANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. Page 2 of 5 Table C3.1 - Duplicate Pair - Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 1,2-DICHLOROETHANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,1-DICHLOROETHENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. CIS-1,2-DICHLOROETHENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. TRANS-1,2-DICHLOROETHENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,2-DICHLOROPROPANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,1-DICHLOROPROPENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,3-DICHLOROPROPANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. CIS-1,3-DICHLOROPROPENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. TRANS-1,3-DICHLOROPROPENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 2,2-DICHLOROPROPANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. DI-ISOPROPYL ETHER 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. ETHYLBENZENE 8260B mg/kg 0.0012 J 0.00125 RDL 1 0.000526 J 0.00128 RDL 1 No, Original and Duplicate results both < 5 x RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample results was less than 2 x RDL. 78.1%Yes HEXACHLORO-1,3-BUTADIENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. ISOPROPYLBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. P-ISOPROPYLTOLUENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 2-BUTANONE (MEK)8260B mg/kg ND 0.0125 RDL 1 ND 0.0128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. Page 3 of 5 Table C3.1 - Duplicate Pair - Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 METHYLENE CHLORIDE 8260B mg/kg ND 0.00626 RDL 1 ND 0.00642 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 4-METHYL-2-PENTANONE (MIBK)8260B mg/kg ND 0.0125 RDL 1 ND 0.0128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. METHYL TERT-BUTYL ETHER 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. NAPHTHALENE 8260B mg/kg ND 0.00626 RDL 1 ND 0.00642 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. N-PROPYLBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. STYRENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,1,1,2-TETRACHLOROETHANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,1,2,2-TETRACHLOROETHANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,1,2-TRICHLOROTRIFLUOROETHANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. TETRACHLOROETHENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. TOLUENE 8260B mg/kg 0.00687 0.00626 RDL 1 0.00297 J 0.00642 RDL 1 No, Original and Duplicate results both < 5 x RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample results was less than 2 x RDL. 1,2,3-TRICHLOROBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,2,4-TRICHLOROBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. Page 4 of 5 Table C3.1 - Duplicate Pair - Petroleum Hydrocarbons and Volatile Organic Compounds in Soil Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 1,1,1-TRICHLOROETHANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,1,2-TRICHLOROETHANE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. TRICHLOROETHENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. TRICHLOROFLUOROMETHANE 8260B mg/kg ND 0.00626 RDL 1 ND 0.00642 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,2,3-TRICHLOROPROPANE 8260B mg/kg ND 0.00313 RDL 1 ND 0.00321 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,2,4-TRIMETHYLBENZENE 8260B mg/kg 0.000776 J 0.00125 RDL 1 0.00033 J V3 0.00128 RDL 1 No, Original and Duplicate results both < 5 x RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample results was less than 2 x RDL. 1,2,3-TRIMETHYLBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. 1,3,5-TRIMETHYLBENZENE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. VINYL CHLORIDE 8260B mg/kg ND 0.00125 RDL 1 ND 0.00128 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than 2 x RDL. XYLENES, TOTAL 8260B mg/kg 0.00277 J 0.00376 RDL 1 0.00124 J 0.00385 RDL 1 No, Original and Duplicate results both < 5 x RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample results was less than 2 x RDL. mg/kg:Milligrams per kilogram. RDL - Laboratory reported detection limit TPH-DRO - Total Petroleum Hydrocarbons, diesel range organics TPH-GRO - Total Petroleum Hydrocarbons, gasoline range organics TRPH - Total Recoverable Petroleum Hydrocarbons RPD - Relative Percent Difference was calculated when analyte concentrations are greater than or equal to five times the RDL. QA/QC RPD Goal is less than 50% for solid samples. For analytes reported at concentrations less than five times the RDL, the QA/QC Goal is the difference between the sample and its duplicate is less than two times the RDL for solid samples. Qualifiers (Q): J:The identification of the analyte is acceptable; the reported value is an estimate.V3:The internal standard exhibited poor recovery due to sample matrix interference. The anlaytical results will be biased high. Page 5 of 5 Table C3.2 - Duplicate Pair - Volatile Organic Compounds and Petroleum Hydrocarbons in Groundwater Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 Analyte Method Units Result Q High Limit High Limit Type Dilution Factor Result Q High Limit High Limit Type Dilution Factor Results 5 x RDL?RPD RPD Within +/- 25% for Groundwater? TPH-DRO 8015 mg/l 1.68 0.1 RDL 1 1.59 0.1 RDL 1 Yes, RPD calculated 5.5%YES TPH-GRO 8015D/GRO mg/l ND 2.5 RDL 5 ND 2.5 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. TRPH 9071B mg/l ND 5.56 RDL 1 ND 5.88 RDL 1 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. ACETONE 8260B mg/l ND 0.25 RDL 5 ND 0.25 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. ACRYLONITRILE 8260B mg/l ND 0.25 RDL 5 ND 0.25 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. BENZENE 8260B mg/l ND 0.05 RDL 5 ND 0.05 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. BROMOBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. BROMODICHLOROMETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. BROMOFORM 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. BROMOMETHANE 8260B mg/l ND J4 0.005 RDL 5 ND J4 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. N-BUTYLBENZENE 8260B mg/l ND 0.025 RDL 5 ND 0.025 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. SEC-BUTYLBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. TERT-BUTYLBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. CARBON TETRACHLORIDE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. CHLOROBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. CHLORODIBROMOMETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. CHLOROETHANE 8260B mg/l ND J4 0.005 RDL 5 ND J4 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. CHLOROFORM 8260B mg/l ND 0.025 RDL 5 ND 0.025 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. CHLOROMETHANE 8260B mg/l ND 0.025 RDL 5 ND 0.025 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. Original Sample Duplicate Sample Date Collected 6/7/2022 6/7/2022 Lab Sample ID L1502586-10 L1502586-14 Client Sample ID MW-5 Water DUP Page 1 of 4 Table C3.2 - Duplicate Pair - Volatile Organic Compounds and Petroleum Hydrocarbons in Groundwater Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 2-CHLOROTOLUENE 8260B mg/l ND 0.0125 RDL 5 ND 0.0125 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 4-CHLOROTOLUENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,2-DIBROMO-3-CHLOROPROPANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,2-DIBROMOETHANE 8260B mg/l ND 0.025 RDL 5 ND 0.025 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. DIBROMOMETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,2-DICHLOROBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,3-DICHLOROBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,4-DICHLOROBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. DICHLORODIFLUOROMETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,1-DICHLOROETHANE 8260B mg/l ND 0.025 RDL 5 ND 0.025 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,2-DICHLOROETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,1-DICHLOROETHENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. CIS-1,2-DICHLOROETHENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. TRANS-1,2-DICHLOROETHENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,2-DICHLOROPROPANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,1-DICHLOROPROPENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,3-DICHLOROPROPANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. CIS-1,3-DICHLOROPROPENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. TRANS-1,3-DICHLOROPROPENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 2,2-DICHLOROPROPANE 8260B mg/l ND J4 0.005 RDL 5 ND J4 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. DI-ISOPROPYL ETHER 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. ETHYLBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. HEXACHLORO-1,3-BUTADIENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. Page 2 of 4 Table C3.2 - Duplicate Pair - Volatile Organic Compounds and Petroleum Hydrocarbons in Groundwater Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 ISOPROPYLBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. P-ISOPROPYLTOLUENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 2-BUTANONE (MEK)8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. METHYLENE CHLORIDE 8260B mg/l ND 0.05 RDL 5 ND 0.05 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 4-METHYL-2-PENTANONE (MIBK)8260B mg/l ND 0.025 RDL 5 ND 0.025 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. METHYL TERT-BUTYL ETHER 8260B mg/l ND 0.05 RDL 5 ND 0.05 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. NAPHTHALENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. N-PROPYLBENZENE 8260B mg/l ND 0.025 RDL 5 ND 0.025 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. STYRENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,1,1,2-TETRACHLOROETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,1,2,2-TETRACHLOROETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,1,2-TRICHLOROTRIFLUOROETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. TETRACHLOROETHENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. TOLUENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,2,3-TRICHLOROBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,2,4-TRICHLOROBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,1,1-TRICHLOROETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,1,2-TRICHLOROETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. TRICHLOROETHENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. TRICHLOROFLUOROMETHANE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,2,3-TRICHLOROPROPANE 8260B mg/l ND 0.025 RDL 5 ND 0.025 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,2,4-TRIMETHYLBENZENE 8260B mg/l ND 0.0125 RDL 5 ND 0.0125 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 1,2,3-TRIMETHYLBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. Page 3 of 4 Table C3.2 - Duplicate Pair - Volatile Organic Compounds and Petroleum Hydrocarbons in Groundwater Lelis - 845 South Main Street, Salt Lake City, Utah Terracon Project No. 61217496 Task 3.3 1,3,5-TRIMETHYLBENZENE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. VINYL CHLORIDE 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. XYLENES, TOTAL 8260B mg/l ND 0.005 RDL 5 ND 0.005 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. ACROLEIN 8260B mg/l ND 0.015 RDL 5 ND 0.015 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. 2-CHLOROETHYL VINYL ETHER 8260B mg/l ND 0.25 RDL 5 ND 0.25 RDL 5 No, Original and Duplicate both < RDL, RPD not calculated.Field Duplicate pair within control because the difference between the Original and Duplicate sample RDLs was less than RDL. mg/l:Milligrams per liter. RDL - Laboratory reported detection limit. TPH-DRO - Total Petroleum Hydrocarbons, diesel range organics TPH-GRO - Total Petroleum Hydrocarbons, gasoline range organics TRPH - Total Recoverable Petroleum Hydrocarbons RPD - Relative Percent Difference was calculated when analyte concentrations are greater than or equal to five times the RDL. QA/QC RPD Goal is less than 25% for groundwater samples. For analytes reported at concentrations less than five times the RDL, the QA/QC Goal is the difference between the sample and its duplicate is less than the RDL for groundwater samples. Qualifiers (Q): J4:The associated batch QC was outside the established quality control range for accuracy. Page 4 of 4 APPENDIX D Chain of Custody and Laboratory Data Sheets ANALYTICAL REPORT November 14, 2022 Revised Report Terracon - Salt Lake City, UT Sample Delivery Group:L1502586 Samples Received:06/08/2022 Project Number:61217496 TASK 3.3 Description:Lelis Site Report To:Daniel Dean 6949 South High Tech Drive Midvale, UT 84047 Entire Report Reviewed By: November 14, 2022 [Preliminary Report] Chris Ward 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 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 1 of 64 November 14, 2022 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 1 of 64 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 7 MW-1 (8) L1502586-01 7 MW-4 (9) L1502586-02 9 MW-5 (0-1) L1502586-03 11 MW-6 (7) L1502586-04 13 MW-7 L1502586-05 15 SOIL DUP 1 L1502586-06 17 TRIP BLANK L1502586-07 19 MW-1 L1502586-08 21 MW-4 L1502586-09 23 MW-5 L1502586-10 25 MW-6 L1502586-11 27 MW-7 L1502586-12 29 WATER DUP L1502586-14 31 Qc: Quality Control Summary 33 Total Solids by Method 2540 G-2011 33 Wet Chemistry by Method 1664A 35 Wet Chemistry by Method 9071B 36 Volatile Organic Compounds (GC/MS) by Method 8260B 38 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 58 Semi-Volatile Organic Compounds (GC) by Method 8015 59 Gl: Glossary of Terms 60 Al: Accreditations & Locations 61 Sc: Sample Chain of Custody 62 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 2 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 2 of 64 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-1 (8) L1502586-01 Solid Steve Maliszeshi 06/06/22 14:30 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1877388 1 06/10/22 10:09 06/10/22 10:25 KDW Mt. Juliet, TN Wet Chemistry by Method 9071B WG1878860 1 06/13/22 15:22 06/15/22 01:24 IJC Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1880627 500 06/13/22 11:18 06/16/22 16:22 ADM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1881169 10 06/20/22 03:23 06/21/22 11:50 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time MW-4 (9) L1502586-02 Solid Steve Maliszeshi 06/06/22 13:15 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1877388 1 06/10/22 10:09 06/10/22 10:25 KDW Mt. Juliet, TN Wet Chemistry by Method 9071B WG1878860 1 06/13/22 15:22 06/15/22 01:24 IJC Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879858 1 06/13/22 11:18 06/15/22 15:42 ACG Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1881169 1 06/20/22 03:23 06/20/22 13:01 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time MW-5 (0-1) L1502586-03 Solid Steve Maliszeshi 06/06/22 10:50 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1877389 1 06/10/22 19:33 06/10/22 19:49 KDW Mt. Juliet, TN Wet Chemistry by Method 9071B WG1878860 1 06/13/22 15:22 06/15/22 01:24 IJC Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879858 1 06/13/22 11:18 06/15/22 16:03 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1880123 1 06/15/22 20:03 06/15/22 21:23 ACG Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1881169 2 06/20/22 03:23 06/20/22 14:37 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time MW-6 (7) L1502586-04 Solid Steve Maliszeshi 06/06/22 09:50 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1877389 1 06/10/22 19:33 06/10/22 19:49 KDW Mt. Juliet, TN Wet Chemistry by Method 9071B WG1880051 1 06/14/22 10:48 06/15/22 18:39 ABP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879361 1 06/13/22 11:18 06/14/22 19:03 ACG Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1881169 1 06/20/22 03:23 06/20/22 13:15 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time MW-7 L1502586-05 Solid Steve Maliszeshi 06/06/22 08:45 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1877389 1 06/10/22 19:33 06/10/22 19:49 KDW Mt. Juliet, TN Wet Chemistry by Method 9071B WG1880051 1 06/14/22 10:48 06/15/22 18:39 ABP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879361 1 06/13/22 11:18 06/14/22 19:25 ACG Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1881169 1 06/20/22 03:23 06/20/22 13:29 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time SOIL DUP 1 L1502586-06 Solid Steve Maliszeshi 06/06/22 00:00 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG1877389 1 06/10/22 19:33 06/10/22 19:49 KDW Mt. Juliet, TN Wet Chemistry by Method 9071B WG1880051 1 06/14/22 10:48 06/15/22 18:39 ABP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879361 1 06/13/22 11:18 06/14/22 19:46 ACG Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG1881169 1 06/20/22 03:23 06/20/22 14:10 JAS Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 3 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 3 of 64 SAMPLE SUMMARY Collected by Collected date/time Received date/time TRIP BLANK L1502586-07 GW Steve Maliszeshi 06/06/22 09:50 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B WG1879398 1 06/14/22 23:24 06/14/22 23:24 JAH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG1881165 1 06/19/22 15:20 06/20/22 16:08 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-1 L1502586-08 GW Steve Maliszeshi 06/06/22 09:35 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Wet Chemistry by Method 1664A WG1879855 1 06/14/22 09:41 06/15/22 16:16 ABP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879398 20 06/15/22 04:39 06/15/22 04:39 JAH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG1881165 1 06/19/22 15:20 06/20/22 16:34 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-4 L1502586-09 GW Steve Maliszeshi 06/06/22 09:15 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Wet Chemistry by Method 1664A WG1879855 1 06/14/22 09:41 06/15/22 16:16 ABP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879398 1 06/14/22 23:45 06/14/22 23:45 JAH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG1881165 1 06/19/22 15:20 06/20/22 17:00 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-5 L1502586-10 GW Steve Maliszeshi 06/06/22 09:02 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Wet Chemistry by Method 1664A WG1879855 1 06/14/22 09:41 06/15/22 16:16 ABP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879398 5 06/15/22 05:01 06/15/22 05:01 JAH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG1881165 1 06/19/22 15:20 06/20/22 17:27 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-6 L1502586-11 GW Steve Maliszeshi 06/06/22 08:45 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Wet Chemistry by Method 1664A WG1879855 1 06/14/22 09:41 06/15/22 16:16 ABP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879398 1 06/15/22 00:06 06/15/22 00:06 JAH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG1881165 1 06/19/22 15:20 06/20/22 17:53 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-7 L1502586-12 GW Steve Maliszeshi 06/06/22 00:00 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Wet Chemistry by Method 1664A WG1879855 1 06/14/22 09:41 06/15/22 16:16 ABP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879398 1 06/15/22 00:27 06/15/22 00:27 JAH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG1881165 1 06/19/22 15:20 06/21/22 12:35 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time WATER DUP L1502586-14 GW Steve Maliszeshi 06/06/22 00:00 06/08/22 13:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Wet Chemistry by Method 1664A WG1879855 1 06/14/22 09:41 06/15/22 16:16 ABP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG1879398 5 06/15/22 05:22 06/15/22 05:22 JAH Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG1881165 1 06/19/22 15:20 06/20/22 18:45 DMG Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 4 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 4 of 64 CASE NARRATIVE Unless qualified or notated within the narrative below, all sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times. 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] Chris Ward Project Manager Report Revision History Level II Report - Version 1: 06/22/22 11:49 Project Comments Rerun to correct project info Sample Delivery Group (SDG) Narrative pH outside of method requirement. Batch Method Lab Sample ID WG1881165 3511/8015 L1502586-08, 10, 14 Wet Chemistry by Method 1664A The sample matrix interfered with the ability to make any accurate determination; spike value is low. Batch Lab Sample ID Analytes WG1879855 (MS) R3803571-4, L1502586-09 TPH - Oil & Grease Wet Chemistry by Method 9071B The associated batch QC was outside the established quality control range for precision. Batch Lab Sample ID Analytes WG1878860 (DUP) R3803169-4 TPH - Oil & Grease RPD value not applicable for sample concentrations less than 5 times the reporting limit. Batch Lab Sample ID Analytes WG1880051 (DUP) R3803623-4 TPH - Oil & Grease The sample matrix interfered with the ability to make any accurate determination; spike value is low. Batch Lab Sample ID Analytes WG1878860 (MS) R3803169-5, (MSD) R3803169-6 TPH - Oil & Grease WG1880051 (MS) R3803623-5, (MSD) R3803623-6 TPH - Oil & Grease 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 5 of 64 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 5 of 64 CASE NARRATIVE Volatile Organic Compounds (GC/MS) by Method 8260B Surrogate recovery limits have been exceeded; values are outside lower control limits. Batch Analyte Lab Sample ID WG1879858 4-Bromofluorobenzene L1502586-02 The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. Batch Lab Sample ID Analytes WG1879361 L1502586-06 1,2,4-Trimethylbenzene The associated batch QC was below the established quality control range for accuracy. Batch Lab Sample ID Analytes WG1879398 (LCS) R3803268-1, (LCSD) R3803268-2, L1502586-07, 08, 09, 10, 11, 12, 14 Bromoform, Chlorodibromomethane and trans-1,3-Dichloropropene The associated batch QC was above the established quality control range for accuracy. Batch Lab Sample ID Analytes WG1880627 (LCSD) R3804919-5, L1502586-01 Di-isopropyl ether The associated batch QC was outside the established quality control range for precision. Batch Lab Sample ID Analytes WG1880627 (LCSD) R3804919-5, L1502586-01 1,1-Dichloroethane and Di-isopropyl ether Semi-Volatile Organic Compounds (GC) by Method 8015 The sample matrix interfered with the ability to make any accurate determination; spike value is low. Batch Lab Sample ID Analytes WG1881169 (MS) R3805357-3 TPH (GC/FID) High Fraction 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 6 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 6 of 64 SAMPLE RESULTS - 01 L1502586 MW-1 (8) Collected date/time: 06/06/22 14:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 78.8 1 06/10/2022 10:25 WG1877388 Wet Chemistry by Method 9071B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH - Oil & Grease 1060 41.9 127 1 06/15/2022 01:24 WG1878860 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction 240 J 141 385 500 06/16/2022 16:22 WG1880627 Benzene U 0.289 0.770 500 06/16/2022 16:22 WG1880627 1,2-Dichloroethane U 0.346 0.770 500 06/16/2022 16:22 WG1880627 1,2-Dibromoethane U 0.192 0.770 500 06/16/2022 16:22 WG1880627 Ethylbenzene U 0.231 0.770 500 06/16/2022 16:22 WG1880627 Methyl tert-butyl ether U 0.269 0.770 500 06/16/2022 16:22 WG1880627 Naphthalene U 3.83 3.85 500 06/16/2022 16:22 WG1880627 Toluene U 0.947 3.85 500 06/16/2022 16:22 WG1880627 Xylenes, Total U 0.385 2.31 500 06/16/2022 16:22 WG1880627 Acetone U 16.0 38.5 500 06/16/2022 16:22 WG1880627 Acrylonitrile U 1.56 7.70 500 06/16/2022 16:22 WG1880627 Bromobenzene U 0.212 0.770 500 06/16/2022 16:22 WG1880627 Bromodichloromethane U 0.559 0.770 500 06/16/2022 16:22 WG1880627 Bromoform U 0.326 0.770 500 06/16/2022 16:22 WG1880627 Bromomethane U 0.901 3.85 500 06/16/2022 16:22 WG1880627 n-Butylbenzene 0.690 J 0.199 0.770 500 06/16/2022 16:22 WG1880627 sec-Butylbenzene 0.516 J 0.156 0.770 500 06/16/2022 16:22 WG1880627 tert-Butylbenzene U 0.159 0.770 500 06/16/2022 16:22 WG1880627 Carbon tetrachloride U 0.191 0.770 500 06/16/2022 16:22 WG1880627 Chlorobenzene U 0.148 0.770 500 06/16/2022 16:22 WG1880627 Chlorodibromomethane U 0.172 0.770 500 06/16/2022 16:22 WG1880627 Chloroethane U 0.770 3.85 500 06/16/2022 16:22 WG1880627 Chloroform U 0.793 3.85 500 06/16/2022 16:22 WG1880627 Chloromethane U 0.500 1.92 500 06/16/2022 16:22 WG1880627 2-Chlorotoluene U 0.174 0.770 500 06/16/2022 16:22 WG1880627 4-Chlorotoluene U 0.531 0.770 500 06/16/2022 16:22 WG1880627 1,2-Dibromo-3-Chloropropane U 1.46 3.85 500 06/16/2022 16:22 WG1880627 Dibromomethane U 0.269 0.770 500 06/16/2022 16:22 WG1880627 1,2-Dichlorobenzene U 0.328 0.770 500 06/16/2022 16:22 WG1880627 1,3-Dichlorobenzene U 0.462 0.770 500 06/16/2022 16:22 WG1880627 1,4-Dichlorobenzene U 0.639 0.770 500 06/16/2022 16:22 WG1880627 Dichlorodifluoromethane U 0.220 3.85 500 06/16/2022 16:22 WG1880627 1,1-Dichloroethane U J3 0.206 0.770 500 06/16/2022 16:22 WG1880627 1,1-Dichloroethene U 0.274 0.770 500 06/16/2022 16:22 WG1880627 cis-1,2-Dichloroethene U 0.366 0.770 500 06/16/2022 16:22 WG1880627 trans-1,2-Dichloroethene U 0.385 0.770 500 06/16/2022 16:22 WG1880627 1,2-Dichloropropane U 0.126 0.770 500 06/16/2022 16:22 WG1880627 1,1-Dichloropropene U 0.289 0.770 500 06/16/2022 16:22 WG1880627 1,3-Dichloropropane U 0.174 0.770 500 06/16/2022 16:22 WG1880627 cis-1,3-Dichloropropene U 0.328 0.770 500 06/16/2022 16:22 WG1880627 trans-1,3-Dichloropropene U 0.520 0.770 500 06/16/2022 16:22 WG1880627 2,2-Dichloropropane U 0.289 0.770 500 06/16/2022 16:22 WG1880627 Di-isopropyl ether U J3 J4 0.171 0.770 500 06/16/2022 16:22 WG1880627 Hexachloro-1,3-butadiene U 0.263 0.770 500 06/16/2022 16:22 WG1880627 Isopropylbenzene U 0.328 0.770 500 06/16/2022 16:22 WG1880627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 7 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 7 of 64 SAMPLE RESULTS - 01 L1502586 MW-1 (8) Collected date/time: 06/06/22 14:30 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time p-Isopropyltoluene U 0.157 0.770 500 06/16/2022 16:22 WG1880627 2-Butanone (MEK)U 3.60 7.70 500 06/16/2022 16:22 WG1880627 Methylene Chloride U 0.770 3.85 500 06/16/2022 16:22 WG1880627 4-Methyl-2-pentanone (MIBK)U 0.731 7.70 500 06/16/2022 16:22 WG1880627 n-Propylbenzene 0.296 J 0.159 0.770 500 06/16/2022 16:22 WG1880627 Styrene U 0.172 0.770 500 06/16/2022 16:22 WG1880627 1,1,1,2-Tetrachloroethane U 0.228 0.770 500 06/16/2022 16:22 WG1880627 1,1,2,2-Tetrachloroethane U 0.179 0.770 500 06/16/2022 16:22 WG1880627 1,1,2-Trichlorotrifluoroethane U 0.328 0.770 500 06/16/2022 16:22 WG1880627 Tetrachloroethene U 0.251 0.770 500 06/16/2022 16:22 WG1880627 1,2,3-Trichlorobenzene U 0.236 0.770 500 06/16/2022 16:22 WG1880627 1,2,4-Trichlorobenzene U 0.299 0.770 500 06/16/2022 16:22 WG1880627 1,1,1-Trichloroethane U 0.285 0.770 500 06/16/2022 16:22 WG1880627 1,1,2-Trichloroethane U 0.328 0.770 500 06/16/2022 16:22 WG1880627 Trichloroethene U 0.154 0.770 500 06/16/2022 16:22 WG1880627 Trichlorofluoromethane U 0.274 3.85 500 06/16/2022 16:22 WG1880627 1,2,3-Trichloropropane U 0.188 1.92 500 06/16/2022 16:22 WG1880627 1,2,4-Trimethylbenzene 0.694 J 0.163 0.770 500 06/16/2022 16:22 WG1880627 1,2,3-Trimethylbenzene U 0.220 0.770 500 06/16/2022 16:22 WG1880627 1,3,5-Trimethylbenzene U 0.205 0.770 500 06/16/2022 16:22 WG1880627 Vinyl chloride U 0.174 0.770 500 06/16/2022 16:22 WG1880627 (S) Toluene-d8 103 75.0-131 06/16/2022 16:22 WG1880627 (S) 4-Bromofluorobenzene 106 67.0-138 06/16/2022 16:22 WG1880627 (S) 1,2-Dichloroethane-d4 102 70.0-130 06/16/2022 16:22 WG1880627 Sample Narrative: L1502586-01 WG1880627: Lowest possible dilution due to sample matrix. Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/FID) High Fraction 766 9.76 50.8 10 06/21/2022 11:50 WG1881169 (S) o-Terphenyl 42.2 18.0-148 06/21/2022 11:50 WG1881169 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 8 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 8 of 64 SAMPLE RESULTS - 02 L1502586 MW-4 (9) Collected date/time: 06/06/22 13:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 80.7 1 06/10/2022 10:25 WG1877388 Wet Chemistry by Method 9071B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH - Oil & Grease 60.0 J 40.9 124 1 06/15/2022 01:24 WG1878860 Sample Narrative: L1502586-02 WG1878860: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.227 0.619 1 06/15/2022 15:42 WG1879858 Benzene 0.000995 J 0.000465 0.00124 1 06/15/2022 15:42 WG1879858 1,2-Dichloroethane U 0.000558 0.00124 1 06/15/2022 15:42 WG1879858 1,2-Dibromoethane U 0.000310 0.00124 1 06/15/2022 15:42 WG1879858 Ethylbenzene U 0.000372 0.00124 1 06/15/2022 15:42 WG1879858 Methyl tert-butyl ether U 0.000434 0.00124 1 06/15/2022 15:42 WG1879858 Naphthalene U 0.00617 0.00619 1 06/15/2022 15:42 WG1879858 Toluene U 0.00152 0.00619 1 06/15/2022 15:42 WG1879858 Xylenes, Total 0.000951 J 0.000619 0.00372 1 06/15/2022 15:42 WG1879858 Acetone U 0.0256 0.0619 1 06/15/2022 15:42 WG1879858 Acrylonitrile U 0.00250 0.0124 1 06/15/2022 15:42 WG1879858 Bromobenzene U 0.000341 0.00124 1 06/15/2022 15:42 WG1879858 Bromodichloromethane 0.00161 0.000898 0.00124 1 06/15/2022 15:42 WG1879858 Bromoform U 0.000525 0.00124 1 06/15/2022 15:42 WG1879858 Bromomethane U 0.00145 0.00619 1 06/15/2022 15:42 WG1879858 n-Butylbenzene U 0.000320 0.00124 1 06/15/2022 15:42 WG1879858 sec-Butylbenzene U 0.000249 0.00124 1 06/15/2022 15:42 WG1879858 tert-Butylbenzene U 0.000255 0.00124 1 06/15/2022 15:42 WG1879858 Carbon tetrachloride U 0.000307 0.00124 1 06/15/2022 15:42 WG1879858 Chlorobenzene U 0.000238 0.00124 1 06/15/2022 15:42 WG1879858 Chlorodibromomethane U 0.000278 0.00124 1 06/15/2022 15:42 WG1879858 Chloroethane U 0.00124 0.00619 1 06/15/2022 15:42 WG1879858 Chloroform 0.0118 0.00128 0.00619 1 06/15/2022 15:42 WG1879858 Chloromethane U 0.000805 0.00310 1 06/15/2022 15:42 WG1879858 2-Chlorotoluene U 0.000279 0.00124 1 06/15/2022 15:42 WG1879858 4-Chlorotoluene U 0.000856 0.00124 1 06/15/2022 15:42 WG1879858 1,2-Dibromo-3-Chloropropane U 0.00235 0.00619 1 06/15/2022 15:42 WG1879858 Dibromomethane U 0.000434 0.00124 1 06/15/2022 15:42 WG1879858 1,2-Dichlorobenzene U 0.000527 0.00124 1 06/15/2022 15:42 WG1879858 1,3-Dichlorobenzene U 0.000743 0.00124 1 06/15/2022 15:42 WG1879858 1,4-Dichlorobenzene U 0.00103 0.00124 1 06/15/2022 15:42 WG1879858 Dichlorodifluoromethane U 0.000356 0.00619 1 06/15/2022 15:42 WG1879858 1,1-Dichloroethane U 0.000332 0.00124 1 06/15/2022 15:42 WG1879858 1,1-Dichloroethene U 0.000440 0.00124 1 06/15/2022 15:42 WG1879858 cis-1,2-Dichloroethene U 0.000588 0.00124 1 06/15/2022 15:42 WG1879858 trans-1,2-Dichloroethene U 0.000619 0.00124 1 06/15/2022 15:42 WG1879858 1,2-Dichloropropane U 0.000203 0.00124 1 06/15/2022 15:42 WG1879858 1,1-Dichloropropene U 0.000465 0.00124 1 06/15/2022 15:42 WG1879858 1,3-Dichloropropane U 0.000279 0.00124 1 06/15/2022 15:42 WG1879858 cis-1,3-Dichloropropene U 0.000527 0.00124 1 06/15/2022 15:42 WG1879858 trans-1,3-Dichloropropene U 0.000836 0.00124 1 06/15/2022 15:42 WG1879858 2,2-Dichloropropane U 0.000465 0.00124 1 06/15/2022 15:42 WG1879858 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 9 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 9 of 64 SAMPLE RESULTS - 02 L1502586 MW-4 (9) Collected date/time: 06/06/22 13:15 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Di-isopropyl ether U 0.000274 0.00124 1 06/15/2022 15:42 WG1879858 Hexachloro-1,3-butadiene U 0.000424 0.00124 1 06/15/2022 15:42 WG1879858 Isopropylbenzene U 0.000527 0.00124 1 06/15/2022 15:42 WG1879858 p-Isopropyltoluene U 0.000253 0.00124 1 06/15/2022 15:42 WG1879858 2-Butanone (MEK)U 0.00580 0.0124 1 06/15/2022 15:42 WG1879858 Methylene Chloride U 0.00124 0.00619 1 06/15/2022 15:42 WG1879858 4-Methyl-2-pentanone (MIBK)U 0.00118 0.0124 1 06/15/2022 15:42 WG1879858 n-Propylbenzene U 0.000255 0.00124 1 06/15/2022 15:42 WG1879858 Styrene U 0.000276 0.00124 1 06/15/2022 15:42 WG1879858 1,1,1,2-Tetrachloroethane U 0.000367 0.00124 1 06/15/2022 15:42 WG1879858 1,1,2,2-Tetrachloroethane U 0.000286 0.00124 1 06/15/2022 15:42 WG1879858 1,1,2-Trichlorotrifluoroethane U 0.000528 0.00124 1 06/15/2022 15:42 WG1879858 Tetrachloroethene U 0.000403 0.00124 1 06/15/2022 15:42 WG1879858 1,2,3-Trichlorobenzene U 0.000379 0.00124 1 06/15/2022 15:42 WG1879858 1,2,4-Trichlorobenzene U 0.000481 0.00124 1 06/15/2022 15:42 WG1879858 1,1,1-Trichloroethane U 0.000458 0.00124 1 06/15/2022 15:42 WG1879858 1,1,2-Trichloroethane U 0.000527 0.00124 1 06/15/2022 15:42 WG1879858 Trichloroethene U 0.000248 0.00124 1 06/15/2022 15:42 WG1879858 Trichlorofluoromethane U 0.000441 0.00619 1 06/15/2022 15:42 WG1879858 1,2,3-Trichloropropane U 0.000302 0.00310 1 06/15/2022 15:42 WG1879858 1,2,4-Trimethylbenzene U 0.000261 0.00124 1 06/15/2022 15:42 WG1879858 1,2,3-Trimethylbenzene U 0.000356 0.00124 1 06/15/2022 15:42 WG1879858 1,3,5-Trimethylbenzene U 0.000330 0.00124 1 06/15/2022 15:42 WG1879858 Vinyl chloride U 0.000280 0.00124 1 06/15/2022 15:42 WG1879858 (S) Toluene-d8 88.7 75.0-131 06/15/2022 15:42 WG1879858 (S) 4-Bromofluorobenzene 62.6 J2 67.0-138 06/15/2022 15:42 WG1879858 (S) 1,2-Dichloroethane-d4 105 70.0-130 06/15/2022 15:42 WG1879858 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/FID) High Fraction U 0.953 4.96 1 06/20/2022 13:01 WG1881169 (S) o-Terphenyl 44.6 18.0-148 06/20/2022 13:01 WG1881169 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 10 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 10 of 64 SAMPLE RESULTS - 03 L1502586 MW-5 (0-1) Collected date/time: 06/06/22 10:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 79.9 1 06/10/2022 19:49 WG1877389 Wet Chemistry by Method 9071B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH - Oil & Grease 86.5 J 41.3 125 1 06/15/2022 01:24 WG1878860 Sample Narrative: L1502586-03 WG1878860: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.229 0.626 1 06/15/2022 16:03 WG1879858 Benzene 0.00653 0.000469 0.00125 1 06/15/2022 16:03 WG1879858 1,2-Dichloroethane U 0.000563 0.00125 1 06/15/2022 16:03 WG1879858 1,2-Dibromoethane U 0.000313 0.00125 1 06/15/2022 16:03 WG1879858 Ethylbenzene 0.00120 J 0.000376 0.00125 1 06/15/2022 16:03 WG1879858 Methyl tert-butyl ether U 0.000438 0.00125 1 06/15/2022 16:03 WG1879858 Naphthalene U 0.00623 0.00626 1 06/15/2022 21:23 WG1880123 Toluene 0.00687 0.00154 0.00626 1 06/15/2022 16:03 WG1879858 Xylenes, Total 0.00277 J 0.000626 0.00376 1 06/15/2022 16:03 WG1879858 Acetone U 0.0259 0.0626 1 06/15/2022 16:03 WG1879858 Acrylonitrile U 0.00253 0.0125 1 06/15/2022 16:03 WG1879858 Bromobenzene U 0.000344 0.00125 1 06/15/2022 21:23 WG1880123 Bromodichloromethane 0.000939 J 0.000908 0.00125 1 06/15/2022 16:03 WG1879858 Bromoform U 0.000531 0.00125 1 06/15/2022 16:03 WG1879858 Bromomethane U 0.00146 0.00626 1 06/15/2022 16:03 WG1879858 n-Butylbenzene U 0.000323 0.00125 1 06/15/2022 21:23 WG1880123 sec-Butylbenzene U 0.000252 0.00125 1 06/15/2022 21:23 WG1880123 tert-Butylbenzene U 0.000258 0.00125 1 06/15/2022 21:23 WG1880123 Carbon tetrachloride U 0.000310 0.00125 1 06/15/2022 16:03 WG1879858 Chlorobenzene U 0.000240 0.00125 1 06/15/2022 16:03 WG1879858 Chlorodibromomethane U 0.000280 0.00125 1 06/15/2022 16:03 WG1879858 Chloroethane U 0.00125 0.00626 1 06/15/2022 16:03 WG1879858 Chloroform 0.00900 0.00129 0.00626 1 06/15/2022 16:03 WG1879858 Chloromethane U 0.000814 0.00313 1 06/15/2022 16:03 WG1879858 2-Chlorotoluene U 0.000282 0.00125 1 06/15/2022 21:23 WG1880123 4-Chlorotoluene U 0.000865 0.00125 1 06/15/2022 21:23 WG1880123 1,2-Dibromo-3-Chloropropane U 0.00238 0.00626 1 06/15/2022 21:23 WG1880123 Dibromomethane U 0.000438 0.00125 1 06/15/2022 16:03 WG1879858 1,2-Dichlorobenzene U 0.000532 0.00125 1 06/15/2022 21:23 WG1880123 1,3-Dichlorobenzene U 0.000751 0.00125 1 06/15/2022 21:23 WG1880123 1,4-Dichlorobenzene U 0.00104 0.00125 1 06/15/2022 21:23 WG1880123 Dichlorodifluoromethane U 0.000359 0.00626 1 06/15/2022 16:03 WG1879858 1,1-Dichloroethane U 0.000335 0.00125 1 06/15/2022 16:03 WG1879858 1,1-Dichloroethene U 0.000444 0.00125 1 06/15/2022 16:03 WG1879858 cis-1,2-Dichloroethene U 0.000595 0.00125 1 06/15/2022 16:03 WG1879858 trans-1,2-Dichloroethene U 0.000626 0.00125 1 06/15/2022 16:03 WG1879858 1,2-Dichloropropane U 0.000205 0.00125 1 06/15/2022 16:03 WG1879858 1,1-Dichloropropene U 0.000469 0.00125 1 06/15/2022 16:03 WG1879858 1,3-Dichloropropane U 0.000282 0.00125 1 06/15/2022 16:03 WG1879858 cis-1,3-Dichloropropene U 0.000532 0.00125 1 06/15/2022 16:03 WG1879858 trans-1,3-Dichloropropene U 0.000845 0.00125 1 06/15/2022 16:03 WG1879858 2,2-Dichloropropane U 0.000469 0.00125 1 06/15/2022 16:03 WG1879858 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 11 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 11 of 64 SAMPLE RESULTS - 03 L1502586 MW-5 (0-1) Collected date/time: 06/06/22 10:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Di-isopropyl ether U 0.000277 0.00125 1 06/15/2022 16:03 WG1879858 Hexachloro-1,3-butadiene U 0.000428 0.00125 1 06/15/2022 21:23 WG1880123 Isopropylbenzene U 0.000532 0.00125 1 06/15/2022 16:03 WG1879858 p-Isopropyltoluene U 0.000255 0.00125 1 06/15/2022 21:23 WG1880123 2-Butanone (MEK)U 0.00586 0.0125 1 06/15/2022 16:03 WG1879858 Methylene Chloride U 0.00125 0.00626 1 06/15/2022 16:03 WG1879858 4-Methyl-2-pentanone (MIBK)U 0.00119 0.0125 1 06/15/2022 16:03 WG1879858 n-Propylbenzene U 0.000258 0.00125 1 06/15/2022 21:23 WG1880123 Styrene U 0.000279 0.00125 1 06/15/2022 16:03 WG1879858 1,1,1,2-Tetrachloroethane U 0.000371 0.00125 1 06/15/2022 16:03 WG1879858 1,1,2,2-Tetrachloroethane U 0.000289 0.00125 1 06/15/2022 21:23 WG1880123 1,1,2-Trichlorotrifluoroethane U 0.000533 0.00125 1 06/15/2022 16:03 WG1879858 Tetrachloroethene U 0.000407 0.00125 1 06/15/2022 16:03 WG1879858 1,2,3-Trichlorobenzene U 0.000383 0.00125 1 06/15/2022 21:23 WG1880123 1,2,4-Trichlorobenzene U 0.000486 0.00125 1 06/15/2022 21:23 WG1880123 1,1,1-Trichloroethane U 0.000463 0.00125 1 06/15/2022 16:03 WG1879858 1,1,2-Trichloroethane U 0.000532 0.00125 1 06/15/2022 16:03 WG1879858 Trichloroethene U 0.000250 0.00125 1 06/15/2022 16:03 WG1879858 Trichlorofluoromethane U 0.000446 0.00626 1 06/15/2022 16:03 WG1879858 1,2,3-Trichloropropane U 0.000305 0.00313 1 06/15/2022 21:23 WG1880123 1,2,4-Trimethylbenzene 0.000776 J 0.000264 0.00125 1 06/15/2022 21:23 WG1880123 1,2,3-Trimethylbenzene U 0.000359 0.00125 1 06/15/2022 21:23 WG1880123 1,3,5-Trimethylbenzene U 0.000333 0.00125 1 06/15/2022 21:23 WG1880123 Vinyl chloride U 0.000283 0.00125 1 06/15/2022 16:03 WG1879858 (S) Toluene-d8 102 75.0-131 06/15/2022 16:03 WG1879858 (S) Toluene-d8 76.1 75.0-131 06/15/2022 21:23 WG1880123 (S) 4-Bromofluorobenzene 90.1 67.0-138 06/15/2022 16:03 WG1879858 (S) 4-Bromofluorobenzene 82.1 67.0-138 06/15/2022 21:23 WG1880123 (S) 1,2-Dichloroethane-d4 107 70.0-130 06/15/2022 16:03 WG1879858 (S) 1,2-Dichloroethane-d4 106 70.0-130 06/15/2022 21:23 WG1880123 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/FID) High Fraction 18.8 1.93 10.0 2 06/20/2022 14:37 WG1881169 (S) o-Terphenyl 57.3 18.0-148 06/20/2022 14:37 WG1881169 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 12 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 12 of 64 SAMPLE RESULTS - 04 L1502586 MW-6 (7) Collected date/time: 06/06/22 09:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 74.4 1 06/10/2022 19:49 WG1877389 Wet Chemistry by Method 9071B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH - Oil & Grease 52.0 J 44.4 134 1 06/15/2022 18:39 WG1880051 Sample Narrative: L1502586-04 WG1880051: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.246 0.672 1 06/14/2022 19:03 WG1879361 Benzene 0.0206 0.000504 0.00134 1 06/14/2022 19:03 WG1879361 1,2-Dichloroethane U 0.000605 0.00134 1 06/14/2022 19:03 WG1879361 1,2-Dibromoethane U 0.000336 0.00134 1 06/14/2022 19:03 WG1879361 Ethylbenzene 0.00484 0.000403 0.00134 1 06/14/2022 19:03 WG1879361 Methyl tert-butyl ether U 0.000471 0.00134 1 06/14/2022 19:03 WG1879361 Naphthalene 0.00863 0.00670 0.00672 1 06/14/2022 19:03 WG1879361 Toluene 0.0247 0.00165 0.00672 1 06/14/2022 19:03 WG1879361 Xylenes, Total 0.0108 0.000672 0.00403 1 06/14/2022 19:03 WG1879361 Acetone U 0.0278 0.0672 1 06/14/2022 19:03 WG1879361 Acrylonitrile U 0.00272 0.0134 1 06/14/2022 19:03 WG1879361 Bromobenzene U 0.000370 0.00134 1 06/14/2022 19:03 WG1879361 Bromodichloromethane 0.00167 0.000975 0.00134 1 06/14/2022 19:03 WG1879361 Bromoform U 0.000570 0.00134 1 06/14/2022 19:03 WG1879361 Bromomethane U 0.00157 0.00672 1 06/14/2022 19:03 WG1879361 n-Butylbenzene U 0.000347 0.00134 1 06/14/2022 19:03 WG1879361 sec-Butylbenzene U 0.000270 0.00134 1 06/14/2022 19:03 WG1879361 tert-Butylbenzene U 0.000277 0.00134 1 06/14/2022 19:03 WG1879361 Carbon tetrachloride U 0.000334 0.00134 1 06/14/2022 19:03 WG1879361 Chlorobenzene U 0.000258 0.00134 1 06/14/2022 19:03 WG1879361 Chlorodibromomethane U 0.000301 0.00134 1 06/14/2022 19:03 WG1879361 Chloroethane U 0.00134 0.00672 1 06/14/2022 19:03 WG1879361 Chloroform 0.0116 0.00139 0.00672 1 06/14/2022 19:03 WG1879361 Chloromethane U 0.000874 0.00336 1 06/14/2022 19:03 WG1879361 2-Chlorotoluene U 0.000303 0.00134 1 06/14/2022 19:03 WG1879361 4-Chlorotoluene U 0.000929 0.00134 1 06/14/2022 19:03 WG1879361 1,2-Dibromo-3-Chloropropane U 0.00256 0.00672 1 06/14/2022 19:03 WG1879361 Dibromomethane U 0.000471 0.00134 1 06/14/2022 19:03 WG1879361 1,2-Dichlorobenzene U 0.000572 0.00134 1 06/14/2022 19:03 WG1879361 1,3-Dichlorobenzene U 0.000807 0.00134 1 06/14/2022 19:03 WG1879361 1,4-Dichlorobenzene U 0.00112 0.00134 1 06/14/2022 19:03 WG1879361 Dichlorodifluoromethane U 0.000386 0.00672 1 06/14/2022 19:03 WG1879361 1,1-Dichloroethane U 0.000360 0.00134 1 06/14/2022 19:03 WG1879361 1,1-Dichloroethene U 0.000477 0.00134 1 06/14/2022 19:03 WG1879361 cis-1,2-Dichloroethene U 0.000639 0.00134 1 06/14/2022 19:03 WG1879361 trans-1,2-Dichloroethene U 0.000672 0.00134 1 06/14/2022 19:03 WG1879361 1,2-Dichloropropane U 0.000221 0.00134 1 06/14/2022 19:03 WG1879361 1,1-Dichloropropene U 0.000504 0.00134 1 06/14/2022 19:03 WG1879361 1,3-Dichloropropane U 0.000303 0.00134 1 06/14/2022 19:03 WG1879361 cis-1,3-Dichloropropene U 0.000572 0.00134 1 06/14/2022 19:03 WG1879361 trans-1,3-Dichloropropene U 0.000908 0.00134 1 06/14/2022 19:03 WG1879361 2,2-Dichloropropane U 0.000504 0.00134 1 06/14/2022 19:03 WG1879361 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 13 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 13 of 64 SAMPLE RESULTS - 04 L1502586 MW-6 (7) Collected date/time: 06/06/22 09:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Di-isopropyl ether U 0.000297 0.00134 1 06/14/2022 19:03 WG1879361 Hexachloro-1,3-butadiene U 0.000460 0.00134 1 06/14/2022 19:03 WG1879361 Isopropylbenzene U 0.000572 0.00134 1 06/14/2022 19:03 WG1879361 p-Isopropyltoluene U 0.000274 0.00134 1 06/14/2022 19:03 WG1879361 2-Butanone (MEK)0.00995 J 0.00629 0.0134 1 06/14/2022 19:03 WG1879361 Methylene Chloride U 0.00134 0.00672 1 06/14/2022 19:03 WG1879361 4-Methyl-2-pentanone (MIBK)U 0.00128 0.0134 1 06/14/2022 19:03 WG1879361 n-Propylbenzene 0.000655 J 0.000277 0.00134 1 06/14/2022 19:03 WG1879361 Styrene U 0.000300 0.00134 1 06/14/2022 19:03 WG1879361 1,1,1,2-Tetrachloroethane U 0.000398 0.00134 1 06/14/2022 19:03 WG1879361 1,1,2,2-Tetrachloroethane U 0.000311 0.00134 1 06/14/2022 19:03 WG1879361 1,1,2-Trichlorotrifluoroethane U 0.000573 0.00134 1 06/14/2022 19:03 WG1879361 Tetrachloroethene U 0.000437 0.00134 1 06/14/2022 19:03 WG1879361 1,2,3-Trichlorobenzene U 0.000412 0.00134 1 06/14/2022 19:03 WG1879361 1,2,4-Trichlorobenzene U 0.000522 0.00134 1 06/14/2022 19:03 WG1879361 1,1,1-Trichloroethane U 0.000498 0.00134 1 06/14/2022 19:03 WG1879361 1,1,2-Trichloroethane U 0.000572 0.00134 1 06/14/2022 19:03 WG1879361 Trichloroethene U 0.000269 0.00134 1 06/14/2022 19:03 WG1879361 Trichlorofluoromethane U 0.000479 0.00672 1 06/14/2022 19:03 WG1879361 1,2,3-Trichloropropane U 0.000328 0.00336 1 06/14/2022 19:03 WG1879361 1,2,4-Trimethylbenzene 0.00195 0.000284 0.00134 1 06/14/2022 19:03 WG1879361 1,2,3-Trimethylbenzene 0.000781 J 0.000386 0.00134 1 06/14/2022 19:03 WG1879361 1,3,5-Trimethylbenzene 0.000611 J 0.000358 0.00134 1 06/14/2022 19:03 WG1879361 Vinyl chloride U 0.000304 0.00134 1 06/14/2022 19:03 WG1879361 (S) Toluene-d8 91.6 75.0-131 06/14/2022 19:03 WG1879361 (S) 4-Bromofluorobenzene 99.8 67.0-138 06/14/2022 19:03 WG1879361 (S) 1,2-Dichloroethane-d4 104 70.0-130 06/14/2022 19:03 WG1879361 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/FID) High Fraction 1.31 J 1.03 5.38 1 06/20/2022 13:15 WG1881169 (S) o-Terphenyl 53.1 18.0-148 06/20/2022 13:15 WG1881169 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 14 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 14 of 64 SAMPLE RESULTS - 05 L1502586 MW-7 Collected date/time: 06/06/22 08:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 74.9 1 06/10/2022 19:49 WG1877389 Wet Chemistry by Method 9071B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH - Oil & Grease U 44.1 133 1 06/15/2022 18:39 WG1880051 Sample Narrative: L1502586-05 WG1880051: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction 0.531 J 0.244 0.667 1 06/14/2022 19:25 WG1879361 Benzene 0.141 0.000501 0.00133 1 06/14/2022 19:25 WG1879361 1,2-Dichloroethane U 0.000601 0.00133 1 06/14/2022 19:25 WG1879361 1,2-Dibromoethane U 0.000334 0.00133 1 06/14/2022 19:25 WG1879361 Ethylbenzene 0.0146 0.000400 0.00133 1 06/14/2022 19:25 WG1879361 Methyl tert-butyl ether U 0.000467 0.00133 1 06/14/2022 19:25 WG1879361 Naphthalene 0.0454 0.00665 0.00667 1 06/14/2022 19:25 WG1879361 Toluene 0.108 0.00164 0.00667 1 06/14/2022 19:25 WG1879361 Xylenes, Total 0.0431 0.000667 0.00400 1 06/14/2022 19:25 WG1879361 Acetone U 0.0276 0.0667 1 06/14/2022 19:25 WG1879361 Acrylonitrile U 0.00270 0.0133 1 06/14/2022 19:25 WG1879361 Bromobenzene U 0.000367 0.00133 1 06/14/2022 19:25 WG1879361 Bromodichloromethane 0.00162 0.000968 0.00133 1 06/14/2022 19:25 WG1879361 Bromoform U 0.000566 0.00133 1 06/14/2022 19:25 WG1879361 Bromomethane U 0.00156 0.00667 1 06/14/2022 19:25 WG1879361 n-Butylbenzene U 0.000344 0.00133 1 06/14/2022 19:25 WG1879361 sec-Butylbenzene U 0.000268 0.00133 1 06/14/2022 19:25 WG1879361 tert-Butylbenzene U 0.000275 0.00133 1 06/14/2022 19:25 WG1879361 Carbon tetrachloride U 0.000331 0.00133 1 06/14/2022 19:25 WG1879361 Chlorobenzene U 0.000256 0.00133 1 06/14/2022 19:25 WG1879361 Chlorodibromomethane U 0.000299 0.00133 1 06/14/2022 19:25 WG1879361 Chloroethane U 0.00133 0.00667 1 06/14/2022 19:25 WG1879361 Chloroform 0.0103 0.00137 0.00667 1 06/14/2022 19:25 WG1879361 Chloromethane U 0.000868 0.00334 1 06/14/2022 19:25 WG1879361 2-Chlorotoluene U 0.000300 0.00133 1 06/14/2022 19:25 WG1879361 4-Chlorotoluene U 0.000922 0.00133 1 06/14/2022 19:25 WG1879361 1,2-Dibromo-3-Chloropropane U 0.00254 0.00667 1 06/14/2022 19:25 WG1879361 Dibromomethane U 0.000467 0.00133 1 06/14/2022 19:25 WG1879361 1,2-Dichlorobenzene U 0.000567 0.00133 1 06/14/2022 19:25 WG1879361 1,3-Dichlorobenzene U 0.000801 0.00133 1 06/14/2022 19:25 WG1879361 1,4-Dichlorobenzene U 0.00111 0.00133 1 06/14/2022 19:25 WG1879361 Dichlorodifluoromethane U 0.000383 0.00667 1 06/14/2022 19:25 WG1879361 1,1-Dichloroethane U 0.000358 0.00133 1 06/14/2022 19:25 WG1879361 1,1-Dichloroethene U 0.000474 0.00133 1 06/14/2022 19:25 WG1879361 cis-1,2-Dichloroethene U 0.000634 0.00133 1 06/14/2022 19:25 WG1879361 trans-1,2-Dichloroethene U 0.000667 0.00133 1 06/14/2022 19:25 WG1879361 1,2-Dichloropropane U 0.000219 0.00133 1 06/14/2022 19:25 WG1879361 1,1-Dichloropropene U 0.000501 0.00133 1 06/14/2022 19:25 WG1879361 1,3-Dichloropropane U 0.000300 0.00133 1 06/14/2022 19:25 WG1879361 cis-1,3-Dichloropropene U 0.000567 0.00133 1 06/14/2022 19:25 WG1879361 trans-1,3-Dichloropropene U 0.000901 0.00133 1 06/14/2022 19:25 WG1879361 2,2-Dichloropropane U 0.000501 0.00133 1 06/14/2022 19:25 WG1879361 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 15 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 15 of 64 SAMPLE RESULTS - 05 L1502586 MW-7 Collected date/time: 06/06/22 08:45 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Di-isopropyl ether U 0.000295 0.00133 1 06/14/2022 19:25 WG1879361 Hexachloro-1,3-butadiene U 0.000457 0.00133 1 06/14/2022 19:25 WG1879361 Isopropylbenzene 0.00101 J 0.000567 0.00133 1 06/14/2022 19:25 WG1879361 p-Isopropyltoluene U 0.000272 0.00133 1 06/14/2022 19:25 WG1879361 2-Butanone (MEK)U 0.00625 0.0133 1 06/14/2022 19:25 WG1879361 Methylene Chloride U 0.00133 0.00667 1 06/14/2022 19:25 WG1879361 4-Methyl-2-pentanone (MIBK)U 0.00127 0.0133 1 06/14/2022 19:25 WG1879361 n-Propylbenzene 0.00146 0.000275 0.00133 1 06/14/2022 19:25 WG1879361 Styrene U 0.000298 0.00133 1 06/14/2022 19:25 WG1879361 1,1,1,2-Tetrachloroethane U 0.000395 0.00133 1 06/14/2022 19:25 WG1879361 1,1,2,2-Tetrachloroethane U 0.000308 0.00133 1 06/14/2022 19:25 WG1879361 1,1,2-Trichlorotrifluoroethane U 0.000569 0.00133 1 06/14/2022 19:25 WG1879361 Tetrachloroethene U 0.000434 0.00133 1 06/14/2022 19:25 WG1879361 1,2,3-Trichlorobenzene U 0.000408 0.00133 1 06/14/2022 19:25 WG1879361 1,2,4-Trichlorobenzene U 0.000518 0.00133 1 06/14/2022 19:25 WG1879361 1,1,1-Trichloroethane U 0.000494 0.00133 1 06/14/2022 19:25 WG1879361 1,1,2-Trichloroethane U 0.000567 0.00133 1 06/14/2022 19:25 WG1879361 Trichloroethene U 0.000267 0.00133 1 06/14/2022 19:25 WG1879361 Trichlorofluoromethane U 0.000475 0.00667 1 06/14/2022 19:25 WG1879361 1,2,3-Trichloropropane U 0.000326 0.00334 1 06/14/2022 19:25 WG1879361 1,2,4-Trimethylbenzene 0.00651 0.000282 0.00133 1 06/14/2022 19:25 WG1879361 1,2,3-Trimethylbenzene 0.00227 0.000383 0.00133 1 06/14/2022 19:25 WG1879361 1,3,5-Trimethylbenzene 0.00244 0.000355 0.00133 1 06/14/2022 19:25 WG1879361 Vinyl chloride U 0.000302 0.00133 1 06/14/2022 19:25 WG1879361 (S) Toluene-d8 92.3 75.0-131 06/14/2022 19:25 WG1879361 (S) 4-Bromofluorobenzene 101 67.0-138 06/14/2022 19:25 WG1879361 (S) 1,2-Dichloroethane-d4 100 70.0-130 06/14/2022 19:25 WG1879361 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/FID) High Fraction 1.28 J 1.03 5.34 1 06/20/2022 13:29 WG1881169 (S) o-Terphenyl 52.0 18.0-148 06/20/2022 13:29 WG1881169 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 16 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 16 of 64 SAMPLE RESULTS - 06 L1502586 SOIL DUP 1 Collected date/time: 06/06/22 00:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 77.9 1 06/10/2022 19:49 WG1877389 Wet Chemistry by Method 9071B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH - Oil & Grease 63.1 J 42.4 128 1 06/15/2022 18:39 WG1880051 Sample Narrative: L1502586-06 WG1880051: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.235 0.642 1 06/14/2022 19:46 WG1879361 Benzene 0.00316 0.000481 0.00128 1 06/14/2022 19:46 WG1879361 1,2-Dichloroethane U 0.000578 0.00128 1 06/14/2022 19:46 WG1879361 1,2-Dibromoethane U 0.000321 0.00128 1 06/14/2022 19:46 WG1879361 Ethylbenzene 0.000526 J 0.000385 0.00128 1 06/14/2022 19:46 WG1879361 Methyl tert-butyl ether U 0.000449 0.00128 1 06/14/2022 19:46 WG1879361 Naphthalene U 0.00639 0.00642 1 06/14/2022 19:46 WG1879361 Toluene 0.00297 J 0.00158 0.00642 1 06/14/2022 19:46 WG1879361 Xylenes, Total 0.00124 J 0.000642 0.00385 1 06/14/2022 19:46 WG1879361 Acetone U 0.0266 0.0642 1 06/14/2022 19:46 WG1879361 Acrylonitrile U 0.00259 0.0128 1 06/14/2022 19:46 WG1879361 Bromobenzene U 0.000353 0.00128 1 06/14/2022 19:46 WG1879361 Bromodichloromethane U 0.000931 0.00128 1 06/14/2022 19:46 WG1879361 Bromoform U 0.000544 0.00128 1 06/14/2022 19:46 WG1879361 Bromomethane U 0.00150 0.00642 1 06/14/2022 19:46 WG1879361 n-Butylbenzene U 0.000331 0.00128 1 06/14/2022 19:46 WG1879361 sec-Butylbenzene U 0.000258 0.00128 1 06/14/2022 19:46 WG1879361 tert-Butylbenzene U 0.000265 0.00128 1 06/14/2022 19:46 WG1879361 Carbon tetrachloride U 0.000318 0.00128 1 06/14/2022 19:46 WG1879361 Chlorobenzene U 0.000247 0.00128 1 06/14/2022 19:46 WG1879361 Chlorodibromomethane U 0.000288 0.00128 1 06/14/2022 19:46 WG1879361 Chloroethane U 0.00128 0.00642 1 06/14/2022 19:46 WG1879361 Chloroform 0.00859 0.00132 0.00642 1 06/14/2022 19:46 WG1879361 Chloromethane U 0.000835 0.00321 1 06/14/2022 19:46 WG1879361 2-Chlorotoluene U 0.000289 0.00128 1 06/14/2022 19:46 WG1879361 4-Chlorotoluene U 0.000887 0.00128 1 06/14/2022 19:46 WG1879361 1,2-Dibromo-3-Chloropropane U 0.00244 0.00642 1 06/14/2022 19:46 WG1879361 Dibromomethane U 0.000449 0.00128 1 06/14/2022 19:46 WG1879361 1,2-Dichlorobenzene U 0.000546 0.00128 1 06/14/2022 19:46 WG1879361 1,3-Dichlorobenzene U 0.000770 0.00128 1 06/14/2022 19:46 WG1879361 1,4-Dichlorobenzene U 0.00107 0.00128 1 06/14/2022 19:46 WG1879361 Dichlorodifluoromethane U 0.000369 0.00642 1 06/14/2022 19:46 WG1879361 1,1-Dichloroethane U 0.000344 0.00128 1 06/14/2022 19:46 WG1879361 1,1-Dichloroethene U 0.000456 0.00128 1 06/14/2022 19:46 WG1879361 cis-1,2-Dichloroethene U 0.000610 0.00128 1 06/14/2022 19:46 WG1879361 trans-1,2-Dichloroethene U 0.000642 0.00128 1 06/14/2022 19:46 WG1879361 1,2-Dichloropropane U 0.000211 0.00128 1 06/14/2022 19:46 WG1879361 1,1-Dichloropropene U 0.000481 0.00128 1 06/14/2022 19:46 WG1879361 1,3-Dichloropropane U 0.000289 0.00128 1 06/14/2022 19:46 WG1879361 cis-1,3-Dichloropropene U 0.000546 0.00128 1 06/14/2022 19:46 WG1879361 trans-1,3-Dichloropropene U 0.000867 0.00128 1 06/14/2022 19:46 WG1879361 2,2-Dichloropropane U 0.000481 0.00128 1 06/14/2022 19:46 WG1879361 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 17 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 17 of 64 SAMPLE RESULTS - 06 L1502586 SOIL DUP 1 Collected date/time: 06/06/22 00:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Di-isopropyl ether U 0.000284 0.00128 1 06/14/2022 19:46 WG1879361 Hexachloro-1,3-butadiene U 0.000439 0.00128 1 06/14/2022 19:46 WG1879361 Isopropylbenzene U 0.000546 0.00128 1 06/14/2022 19:46 WG1879361 p-Isopropyltoluene U 0.000262 0.00128 1 06/14/2022 19:46 WG1879361 2-Butanone (MEK)U 0.00601 0.0128 1 06/14/2022 19:46 WG1879361 Methylene Chloride U 0.00128 0.00642 1 06/14/2022 19:46 WG1879361 4-Methyl-2-pentanone (MIBK)U 0.00122 0.0128 1 06/14/2022 19:46 WG1879361 n-Propylbenzene U 0.000265 0.00128 1 06/14/2022 19:46 WG1879361 Styrene U 0.000286 0.00128 1 06/14/2022 19:46 WG1879361 1,1,1,2-Tetrachloroethane U 0.000380 0.00128 1 06/14/2022 19:46 WG1879361 1,1,2,2-Tetrachloroethane U 0.000297 0.00128 1 06/14/2022 19:46 WG1879361 1,1,2-Trichlorotrifluoroethane U 0.000547 0.00128 1 06/14/2022 19:46 WG1879361 Tetrachloroethene U 0.000417 0.00128 1 06/14/2022 19:46 WG1879361 1,2,3-Trichlorobenzene U 0.000393 0.00128 1 06/14/2022 19:46 WG1879361 1,2,4-Trichlorobenzene U 0.000498 0.00128 1 06/14/2022 19:46 WG1879361 1,1,1-Trichloroethane U 0.000475 0.00128 1 06/14/2022 19:46 WG1879361 1,1,2-Trichloroethane U 0.000546 0.00128 1 06/14/2022 19:46 WG1879361 Trichloroethene U 0.000257 0.00128 1 06/14/2022 19:46 WG1879361 Trichlorofluoromethane U 0.000457 0.00642 1 06/14/2022 19:46 WG1879361 1,2,3-Trichloropropane U 0.000313 0.00321 1 06/14/2022 19:46 WG1879361 1,2,4-Trimethylbenzene 0.000330 J V3 0.000271 0.00128 1 06/14/2022 19:46 WG1879361 1,2,3-Trimethylbenzene U 0.000369 0.00128 1 06/14/2022 19:46 WG1879361 1,3,5-Trimethylbenzene U 0.000342 0.00128 1 06/14/2022 19:46 WG1879361 Vinyl chloride U 0.000290 0.00128 1 06/14/2022 19:46 WG1879361 (S) Toluene-d8 92.0 75.0-131 06/14/2022 19:46 WG1879361 (S) 4-Bromofluorobenzene 81.9 67.0-138 06/14/2022 19:46 WG1879361 (S) 1,2-Dichloroethane-d4 107 70.0-130 06/14/2022 19:46 WG1879361 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/FID) High Fraction 14.5 0.987 5.14 1 06/20/2022 14:10 WG1881169 (S) o-Terphenyl 47.6 18.0-148 06/20/2022 14:10 WG1881169 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 18 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 18 of 64 SAMPLE RESULTS - 07 L1502586 TRIP BLANK Collected date/time: 06/06/22 09:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/MS) Low Fraction U 0.108 0.500 1 06/14/2022 23:24 WG1879398 Acetone U 0.0113 0.0500 1 06/14/2022 23:24 WG1879398 Acrolein U 0.00254 0.0500 1 06/14/2022 23:24 WG1879398 Acrylonitrile U 0.000671 0.0100 1 06/14/2022 23:24 WG1879398 Benzene U 0.0000941 0.00100 1 06/14/2022 23:24 WG1879398 Bromobenzene U 0.000118 0.00100 1 06/14/2022 23:24 WG1879398 Bromodichloromethane U 0.000136 0.00100 1 06/14/2022 23:24 WG1879398 Bromoform U J4 0.000129 0.00100 1 06/14/2022 23:24 WG1879398 Bromomethane U 0.000605 0.00500 1 06/14/2022 23:24 WG1879398 n-Butylbenzene U 0.000157 0.00100 1 06/14/2022 23:24 WG1879398 sec-Butylbenzene U 0.000125 0.00100 1 06/14/2022 23:24 WG1879398 tert-Butylbenzene U 0.000127 0.00100 1 06/14/2022 23:24 WG1879398 Carbon tetrachloride U 0.000128 0.00100 1 06/14/2022 23:24 WG1879398 Chlorobenzene U 0.000116 0.00100 1 06/14/2022 23:24 WG1879398 Chlorodibromomethane U J4 0.000140 0.00100 1 06/14/2022 23:24 WG1879398 Chloroethane U 0.000192 0.00500 1 06/14/2022 23:24 WG1879398 2-Chloroethyl vinyl ether U 0.000575 0.0500 1 06/14/2022 23:24 WG1879398 Chloroform U 0.000111 0.00500 1 06/14/2022 23:24 WG1879398 Chloromethane U 0.000960 0.00250 1 06/14/2022 23:24 WG1879398 2-Chlorotoluene U 0.000106 0.00100 1 06/14/2022 23:24 WG1879398 4-Chlorotoluene U 0.000114 0.00100 1 06/14/2022 23:24 WG1879398 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1 06/14/2022 23:24 WG1879398 1,2-Dibromoethane U 0.000126 0.00100 1 06/14/2022 23:24 WG1879398 Dibromomethane U 0.000122 0.00100 1 06/14/2022 23:24 WG1879398 1,2-Dichlorobenzene U 0.000107 0.00100 1 06/14/2022 23:24 WG1879398 1,3-Dichlorobenzene U 0.000110 0.00100 1 06/14/2022 23:24 WG1879398 1,4-Dichlorobenzene U 0.000120 0.00100 1 06/14/2022 23:24 WG1879398 Dichlorodifluoromethane U 0.000374 0.00500 1 06/14/2022 23:24 WG1879398 1,1-Dichloroethane U 0.000100 0.00100 1 06/14/2022 23:24 WG1879398 1,2-Dichloroethane U 0.0000819 0.00100 1 06/14/2022 23:24 WG1879398 1,1-Dichloroethene U 0.000188 0.00100 1 06/14/2022 23:24 WG1879398 cis-1,2-Dichloroethene U 0.000126 0.00100 1 06/14/2022 23:24 WG1879398 trans-1,2-Dichloroethene U 0.000149 0.00100 1 06/14/2022 23:24 WG1879398 1,2-Dichloropropane U 0.000149 0.00100 1 06/14/2022 23:24 WG1879398 1,1-Dichloropropene U 0.000142 0.00100 1 06/14/2022 23:24 WG1879398 1,3-Dichloropropane U 0.000110 0.00100 1 06/14/2022 23:24 WG1879398 cis-1,3-Dichloropropene U 0.000111 0.00100 1 06/14/2022 23:24 WG1879398 trans-1,3-Dichloropropene U J4 0.000118 0.00100 1 06/14/2022 23:24 WG1879398 2,2-Dichloropropane U 0.000161 0.00100 1 06/14/2022 23:24 WG1879398 Di-isopropyl ether U 0.000105 0.00100 1 06/14/2022 23:24 WG1879398 Ethylbenzene U 0.000137 0.00100 1 06/14/2022 23:24 WG1879398 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 06/14/2022 23:24 WG1879398 Isopropylbenzene U 0.000105 0.00100 1 06/14/2022 23:24 WG1879398 p-Isopropyltoluene U 0.000120 0.00100 1 06/14/2022 23:24 WG1879398 2-Butanone (MEK)U 0.00119 0.0100 1 06/14/2022 23:24 WG1879398 Methylene Chloride U 0.000430 0.00500 1 06/14/2022 23:24 WG1879398 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 1 06/14/2022 23:24 WG1879398 Methyl tert-butyl ether U 0.000101 0.00100 1 06/14/2022 23:24 WG1879398 Naphthalene U 0.00100 0.00500 1 06/14/2022 23:24 WG1879398 n-Propylbenzene U 0.0000993 0.00100 1 06/14/2022 23:24 WG1879398 Styrene U 0.000118 0.00100 1 06/14/2022 23:24 WG1879398 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1 06/14/2022 23:24 WG1879398 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1 06/14/2022 23:24 WG1879398 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 1 06/14/2022 23:24 WG1879398 Tetrachloroethene U 0.000300 0.00100 1 06/14/2022 23:24 WG1879398 Toluene U 0.000278 0.00100 1 06/14/2022 23:24 WG1879398 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 19 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 19 of 64 SAMPLE RESULTS - 07 L1502586 TRIP BLANK Collected date/time: 06/06/22 09:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time 1,2,3-Trichlorobenzene U 0.000230 0.00100 1 06/14/2022 23:24 WG1879398 1,2,4-Trichlorobenzene U 0.000481 0.00100 1 06/14/2022 23:24 WG1879398 1,1,1-Trichloroethane U 0.000149 0.00100 1 06/14/2022 23:24 WG1879398 1,1,2-Trichloroethane U 0.000158 0.00100 1 06/14/2022 23:24 WG1879398 Trichloroethene U 0.000190 0.00100 1 06/14/2022 23:24 WG1879398 Trichlorofluoromethane U 0.000160 0.00500 1 06/14/2022 23:24 WG1879398 1,2,3-Trichloropropane U 0.000237 0.00250 1 06/14/2022 23:24 WG1879398 1,2,4-Trimethylbenzene U 0.000322 0.00100 1 06/14/2022 23:24 WG1879398 1,2,3-Trimethylbenzene U 0.000104 0.00100 1 06/14/2022 23:24 WG1879398 1,3,5-Trimethylbenzene U 0.000104 0.00100 1 06/14/2022 23:24 WG1879398 Vinyl chloride U 0.000234 0.00100 1 06/14/2022 23:24 WG1879398 Xylenes, Total U 0.000174 0.00300 1 06/14/2022 23:24 WG1879398 (S) Toluene-d8 98.4 80.0-120 06/14/2022 23:24 WG1879398 (S) 4-Bromofluorobenzene 100 77.0-126 06/14/2022 23:24 WG1879398 (S) 1,2-Dichloroethane-d4 96.7 70.0-130 06/14/2022 23:24 WG1879398 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/FID) High Fraction 0.0573 J 0.0247 0.100 1 06/20/2022 16:08 WG1881165 (S) o-Terphenyl 99.5 31.0-160 06/20/2022 16:08 WG1881165 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 20 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 20 of 64 SAMPLE RESULTS - 08 L1502586 MW-1 Collected date/time: 06/06/22 09:35 Wet Chemistry by Method 1664A Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH - Oil & Grease 1.89 J 0.806 5.56 1 06/15/2022 16:16 WG1879855 Sample Narrative: L1502586-08 WG1879855: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/MS) Low Fraction U 2.16 10.0 20 06/15/2022 04:39 WG1879398 Acetone U 0.226 1.00 20 06/15/2022 04:39 WG1879398 Acrolein U 0.0508 1.00 20 06/15/2022 04:39 WG1879398 Acrylonitrile U 0.0134 0.200 20 06/15/2022 04:39 WG1879398 Benzene U 0.00188 0.0200 20 06/15/2022 04:39 WG1879398 Bromobenzene U 0.00236 0.0200 20 06/15/2022 04:39 WG1879398 Bromodichloromethane U 0.00272 0.0200 20 06/15/2022 04:39 WG1879398 Bromoform U J4 0.00258 0.0200 20 06/15/2022 04:39 WG1879398 Bromomethane U 0.0121 0.100 20 06/15/2022 04:39 WG1879398 n-Butylbenzene U 0.00314 0.0200 20 06/15/2022 04:39 WG1879398 sec-Butylbenzene 0.00598 J 0.00250 0.0200 20 06/15/2022 04:39 WG1879398 tert-Butylbenzene U 0.00254 0.0200 20 06/15/2022 04:39 WG1879398 Carbon tetrachloride U 0.00256 0.0200 20 06/15/2022 04:39 WG1879398 Chlorobenzene 0.0135 J 0.00232 0.0200 20 06/15/2022 04:39 WG1879398 Chlorodibromomethane U J4 0.00280 0.0200 20 06/15/2022 04:39 WG1879398 Chloroethane U 0.00384 0.100 20 06/15/2022 04:39 WG1879398 2-Chloroethyl vinyl ether U 0.0115 1.00 20 06/15/2022 04:39 WG1879398 Chloroform U 0.00222 0.100 20 06/15/2022 04:39 WG1879398 Chloromethane U 0.0192 0.0500 20 06/15/2022 04:39 WG1879398 2-Chlorotoluene U 0.00212 0.0200 20 06/15/2022 04:39 WG1879398 4-Chlorotoluene U 0.00228 0.0200 20 06/15/2022 04:39 WG1879398 1,2-Dibromo-3-Chloropropane U 0.00552 0.100 20 06/15/2022 04:39 WG1879398 1,2-Dibromoethane U 0.00252 0.0200 20 06/15/2022 04:39 WG1879398 Dibromomethane U 0.00244 0.0200 20 06/15/2022 04:39 WG1879398 1,2-Dichlorobenzene 0.0261 0.00214 0.0200 20 06/15/2022 04:39 WG1879398 1,3-Dichlorobenzene U 0.00220 0.0200 20 06/15/2022 04:39 WG1879398 1,4-Dichlorobenzene 0.00512 J 0.00240 0.0200 20 06/15/2022 04:39 WG1879398 Dichlorodifluoromethane U 0.00748 0.100 20 06/15/2022 04:39 WG1879398 1,1-Dichloroethane U 0.00200 0.0200 20 06/15/2022 04:39 WG1879398 1,2-Dichloroethane U 0.00164 0.0200 20 06/15/2022 04:39 WG1879398 1,1-Dichloroethene U 0.00376 0.0200 20 06/15/2022 04:39 WG1879398 cis-1,2-Dichloroethene 0.00486 J 0.00252 0.0200 20 06/15/2022 04:39 WG1879398 trans-1,2-Dichloroethene U 0.00298 0.0200 20 06/15/2022 04:39 WG1879398 1,2-Dichloropropane U 0.00298 0.0200 20 06/15/2022 04:39 WG1879398 1,1-Dichloropropene U 0.00284 0.0200 20 06/15/2022 04:39 WG1879398 1,3-Dichloropropane U 0.00220 0.0200 20 06/15/2022 04:39 WG1879398 cis-1,3-Dichloropropene U 0.00222 0.0200 20 06/15/2022 04:39 WG1879398 trans-1,3-Dichloropropene U J4 0.00236 0.0200 20 06/15/2022 04:39 WG1879398 2,2-Dichloropropane U 0.00322 0.0200 20 06/15/2022 04:39 WG1879398 Di-isopropyl ether U 0.00210 0.0200 20 06/15/2022 04:39 WG1879398 Ethylbenzene U 0.00274 0.0200 20 06/15/2022 04:39 WG1879398 Hexachloro-1,3-butadiene U 0.00674 0.0200 20 06/15/2022 04:39 WG1879398 Isopropylbenzene 0.00369 J 0.00210 0.0200 20 06/15/2022 04:39 WG1879398 p-Isopropyltoluene U 0.00240 0.0200 20 06/15/2022 04:39 WG1879398 2-Butanone (MEK)U 0.0238 0.200 20 06/15/2022 04:39 WG1879398 Methylene Chloride U 0.00860 0.100 20 06/15/2022 04:39 WG1879398 4-Methyl-2-pentanone (MIBK)U 0.00956 0.200 20 06/15/2022 04:39 WG1879398 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 21 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 21 of 64 SAMPLE RESULTS - 08 L1502586 MW-1 Collected date/time: 06/06/22 09:35 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Methyl tert-butyl ether U 0.00202 0.0200 20 06/15/2022 04:39 WG1879398 Naphthalene 0.0784 J 0.0200 0.100 20 06/15/2022 04:39 WG1879398 n-Propylbenzene 0.00990 J 0.00199 0.0200 20 06/15/2022 04:39 WG1879398 Styrene U 0.00236 0.0200 20 06/15/2022 04:39 WG1879398 1,1,1,2-Tetrachloroethane U 0.00294 0.0200 20 06/15/2022 04:39 WG1879398 1,1,2,2-Tetrachloroethane U 0.00266 0.0200 20 06/15/2022 04:39 WG1879398 1,1,2-Trichlorotrifluoroethane U 0.00360 0.0200 20 06/15/2022 04:39 WG1879398 Tetrachloroethene U 0.00600 0.0200 20 06/15/2022 04:39 WG1879398 Toluene U 0.00556 0.0200 20 06/15/2022 04:39 WG1879398 1,2,3-Trichlorobenzene U 0.00460 0.0200 20 06/15/2022 04:39 WG1879398 1,2,4-Trichlorobenzene U 0.00962 0.0200 20 06/15/2022 04:39 WG1879398 1,1,1-Trichloroethane U 0.00298 0.0200 20 06/15/2022 04:39 WG1879398 1,1,2-Trichloroethane U 0.00316 0.0200 20 06/15/2022 04:39 WG1879398 Trichloroethene U 0.00380 0.0200 20 06/15/2022 04:39 WG1879398 Trichlorofluoromethane U 0.00320 0.100 20 06/15/2022 04:39 WG1879398 1,2,3-Trichloropropane U 0.00474 0.0500 20 06/15/2022 04:39 WG1879398 1,2,4-Trimethylbenzene 0.0621 0.00644 0.0200 20 06/15/2022 04:39 WG1879398 1,2,3-Trimethylbenzene 0.0404 0.00208 0.0200 20 06/15/2022 04:39 WG1879398 1,3,5-Trimethylbenzene 0.00996 J 0.00208 0.0200 20 06/15/2022 04:39 WG1879398 Vinyl chloride U 0.00468 0.0200 20 06/15/2022 04:39 WG1879398 Xylenes, Total 0.0108 J 0.00348 0.0600 20 06/15/2022 04:39 WG1879398 (S) Toluene-d8 104 80.0-120 06/15/2022 04:39 WG1879398 (S) 4-Bromofluorobenzene 99.8 77.0-126 06/15/2022 04:39 WG1879398 (S) 1,2-Dichloroethane-d4 97.0 70.0-130 06/15/2022 04:39 WG1879398 Sample Narrative: L1502586-08 WG1879398: Lowest possible diluiton due to sample foaming. Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/FID) High Fraction 7.76 0.0247 0.100 1 06/20/2022 16:34 WG1881165 (S) o-Terphenyl 107 31.0-160 06/20/2022 16:34 WG1881165 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 22 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 22 of 64 SAMPLE RESULTS - 09 L1502586 MW-4 Collected date/time: 06/06/22 09:15 Wet Chemistry by Method 1664A Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH - Oil & Grease U J6 0.806 5.56 1 06/15/2022 16:16 WG1879855 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/MS) Low Fraction U 0.108 0.500 1 06/14/2022 23:45 WG1879398 Acetone U 0.0113 0.0500 1 06/14/2022 23:45 WG1879398 Acrolein U 0.00254 0.0500 1 06/14/2022 23:45 WG1879398 Acrylonitrile U 0.000671 0.0100 1 06/14/2022 23:45 WG1879398 Benzene U 0.0000941 0.00100 1 06/14/2022 23:45 WG1879398 Bromobenzene U 0.000118 0.00100 1 06/14/2022 23:45 WG1879398 Bromodichloromethane U 0.000136 0.00100 1 06/14/2022 23:45 WG1879398 Bromoform U J4 0.000129 0.00100 1 06/14/2022 23:45 WG1879398 Bromomethane U 0.000605 0.00500 1 06/14/2022 23:45 WG1879398 n-Butylbenzene U 0.000157 0.00100 1 06/14/2022 23:45 WG1879398 sec-Butylbenzene U 0.000125 0.00100 1 06/14/2022 23:45 WG1879398 tert-Butylbenzene U 0.000127 0.00100 1 06/14/2022 23:45 WG1879398 Carbon tetrachloride U 0.000128 0.00100 1 06/14/2022 23:45 WG1879398 Chlorobenzene U 0.000116 0.00100 1 06/14/2022 23:45 WG1879398 Chlorodibromomethane U J4 0.000140 0.00100 1 06/14/2022 23:45 WG1879398 Chloroethane U 0.000192 0.00500 1 06/14/2022 23:45 WG1879398 2-Chloroethyl vinyl ether U 0.000575 0.0500 1 06/14/2022 23:45 WG1879398 Chloroform U 0.000111 0.00500 1 06/14/2022 23:45 WG1879398 Chloromethane U 0.000960 0.00250 1 06/14/2022 23:45 WG1879398 2-Chlorotoluene U 0.000106 0.00100 1 06/14/2022 23:45 WG1879398 4-Chlorotoluene U 0.000114 0.00100 1 06/14/2022 23:45 WG1879398 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1 06/14/2022 23:45 WG1879398 1,2-Dibromoethane U 0.000126 0.00100 1 06/14/2022 23:45 WG1879398 Dibromomethane U 0.000122 0.00100 1 06/14/2022 23:45 WG1879398 1,2-Dichlorobenzene U 0.000107 0.00100 1 06/14/2022 23:45 WG1879398 1,3-Dichlorobenzene U 0.000110 0.00100 1 06/14/2022 23:45 WG1879398 1,4-Dichlorobenzene U 0.000120 0.00100 1 06/14/2022 23:45 WG1879398 Dichlorodifluoromethane U 0.000374 0.00500 1 06/14/2022 23:45 WG1879398 1,1-Dichloroethane U 0.000100 0.00100 1 06/14/2022 23:45 WG1879398 1,2-Dichloroethane U 0.0000819 0.00100 1 06/14/2022 23:45 WG1879398 1,1-Dichloroethene U 0.000188 0.00100 1 06/14/2022 23:45 WG1879398 cis-1,2-Dichloroethene U 0.000126 0.00100 1 06/14/2022 23:45 WG1879398 trans-1,2-Dichloroethene U 0.000149 0.00100 1 06/14/2022 23:45 WG1879398 1,2-Dichloropropane U 0.000149 0.00100 1 06/14/2022 23:45 WG1879398 1,1-Dichloropropene U 0.000142 0.00100 1 06/14/2022 23:45 WG1879398 1,3-Dichloropropane U 0.000110 0.00100 1 06/14/2022 23:45 WG1879398 cis-1,3-Dichloropropene U 0.000111 0.00100 1 06/14/2022 23:45 WG1879398 trans-1,3-Dichloropropene U J4 0.000118 0.00100 1 06/14/2022 23:45 WG1879398 2,2-Dichloropropane U 0.000161 0.00100 1 06/14/2022 23:45 WG1879398 Di-isopropyl ether U 0.000105 0.00100 1 06/14/2022 23:45 WG1879398 Ethylbenzene U 0.000137 0.00100 1 06/14/2022 23:45 WG1879398 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 06/14/2022 23:45 WG1879398 Isopropylbenzene U 0.000105 0.00100 1 06/14/2022 23:45 WG1879398 p-Isopropyltoluene U 0.000120 0.00100 1 06/14/2022 23:45 WG1879398 2-Butanone (MEK)U 0.00119 0.0100 1 06/14/2022 23:45 WG1879398 Methylene Chloride U 0.000430 0.00500 1 06/14/2022 23:45 WG1879398 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 1 06/14/2022 23:45 WG1879398 Methyl tert-butyl ether U 0.000101 0.00100 1 06/14/2022 23:45 WG1879398 Naphthalene U 0.00100 0.00500 1 06/14/2022 23:45 WG1879398 n-Propylbenzene U 0.0000993 0.00100 1 06/14/2022 23:45 WG1879398 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 23 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 23 of 64 SAMPLE RESULTS - 09 L1502586 MW-4 Collected date/time: 06/06/22 09:15 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Styrene U 0.000118 0.00100 1 06/14/2022 23:45 WG1879398 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1 06/14/2022 23:45 WG1879398 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1 06/14/2022 23:45 WG1879398 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 1 06/14/2022 23:45 WG1879398 Tetrachloroethene U 0.000300 0.00100 1 06/14/2022 23:45 WG1879398 Toluene U 0.000278 0.00100 1 06/14/2022 23:45 WG1879398 1,2,3-Trichlorobenzene U 0.000230 0.00100 1 06/14/2022 23:45 WG1879398 1,2,4-Trichlorobenzene U 0.000481 0.00100 1 06/14/2022 23:45 WG1879398 1,1,1-Trichloroethane U 0.000149 0.00100 1 06/14/2022 23:45 WG1879398 1,1,2-Trichloroethane U 0.000158 0.00100 1 06/14/2022 23:45 WG1879398 Trichloroethene U 0.000190 0.00100 1 06/14/2022 23:45 WG1879398 Trichlorofluoromethane U 0.000160 0.00500 1 06/14/2022 23:45 WG1879398 1,2,3-Trichloropropane U 0.000237 0.00250 1 06/14/2022 23:45 WG1879398 1,2,4-Trimethylbenzene U 0.000322 0.00100 1 06/14/2022 23:45 WG1879398 1,2,3-Trimethylbenzene U 0.000104 0.00100 1 06/14/2022 23:45 WG1879398 1,3,5-Trimethylbenzene U 0.000104 0.00100 1 06/14/2022 23:45 WG1879398 Vinyl chloride U 0.000234 0.00100 1 06/14/2022 23:45 WG1879398 Xylenes, Total U 0.000174 0.00300 1 06/14/2022 23:45 WG1879398 (S) Toluene-d8 101 80.0-120 06/14/2022 23:45 WG1879398 (S) 4-Bromofluorobenzene 102 77.0-126 06/14/2022 23:45 WG1879398 (S) 1,2-Dichloroethane-d4 95.8 70.0-130 06/14/2022 23:45 WG1879398 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/FID) High Fraction 1.15 0.0247 0.100 1 06/20/2022 17:00 WG1881165 (S) o-Terphenyl 85.3 31.0-160 06/20/2022 17:00 WG1881165 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 24 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 24 of 64 SAMPLE RESULTS - 10 L1502586 MW-5 Collected date/time: 06/06/22 09:02 Wet Chemistry by Method 1664A Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH - Oil & Grease U 0.806 5.56 1 06/15/2022 16:16 WG1879855 Sample Narrative: L1502586-10 WG1879855: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/MS) Low Fraction U 0.540 2.50 5 06/15/2022 05:01 WG1879398 Acetone U 0.0565 0.250 5 06/15/2022 05:01 WG1879398 Acrolein U 0.0127 0.250 5 06/15/2022 05:01 WG1879398 Acrylonitrile U 0.00336 0.0500 5 06/15/2022 05:01 WG1879398 Benzene U 0.000471 0.00500 5 06/15/2022 05:01 WG1879398 Bromobenzene U 0.000590 0.00500 5 06/15/2022 05:01 WG1879398 Bromodichloromethane U 0.000680 0.00500 5 06/15/2022 05:01 WG1879398 Bromoform U J4 0.000645 0.00500 5 06/15/2022 05:01 WG1879398 Bromomethane U 0.00303 0.0250 5 06/15/2022 05:01 WG1879398 n-Butylbenzene U 0.000785 0.00500 5 06/15/2022 05:01 WG1879398 sec-Butylbenzene U 0.000625 0.00500 5 06/15/2022 05:01 WG1879398 tert-Butylbenzene U 0.000635 0.00500 5 06/15/2022 05:01 WG1879398 Carbon tetrachloride U 0.000640 0.00500 5 06/15/2022 05:01 WG1879398 Chlorobenzene U 0.000580 0.00500 5 06/15/2022 05:01 WG1879398 Chlorodibromomethane U J4 0.000700 0.00500 5 06/15/2022 05:01 WG1879398 Chloroethane U 0.000960 0.0250 5 06/15/2022 05:01 WG1879398 2-Chloroethyl vinyl ether U 0.00288 0.250 5 06/15/2022 05:01 WG1879398 Chloroform U 0.000555 0.0250 5 06/15/2022 05:01 WG1879398 Chloromethane U 0.00480 0.0125 5 06/15/2022 05:01 WG1879398 2-Chlorotoluene U 0.000530 0.00500 5 06/15/2022 05:01 WG1879398 4-Chlorotoluene U 0.000570 0.00500 5 06/15/2022 05:01 WG1879398 1,2-Dibromo-3-Chloropropane U 0.00138 0.0250 5 06/15/2022 05:01 WG1879398 1,2-Dibromoethane U 0.000630 0.00500 5 06/15/2022 05:01 WG1879398 Dibromomethane U 0.000610 0.00500 5 06/15/2022 05:01 WG1879398 1,2-Dichlorobenzene U 0.000535 0.00500 5 06/15/2022 05:01 WG1879398 1,3-Dichlorobenzene U 0.000550 0.00500 5 06/15/2022 05:01 WG1879398 1,4-Dichlorobenzene U 0.000600 0.00500 5 06/15/2022 05:01 WG1879398 Dichlorodifluoromethane U 0.00187 0.0250 5 06/15/2022 05:01 WG1879398 1,1-Dichloroethane U 0.000500 0.00500 5 06/15/2022 05:01 WG1879398 1,2-Dichloroethane U 0.000409 0.00500 5 06/15/2022 05:01 WG1879398 1,1-Dichloroethene U 0.000940 0.00500 5 06/15/2022 05:01 WG1879398 cis-1,2-Dichloroethene U 0.000630 0.00500 5 06/15/2022 05:01 WG1879398 trans-1,2-Dichloroethene U 0.000745 0.00500 5 06/15/2022 05:01 WG1879398 1,2-Dichloropropane U 0.000745 0.00500 5 06/15/2022 05:01 WG1879398 1,1-Dichloropropene U 0.000710 0.00500 5 06/15/2022 05:01 WG1879398 1,3-Dichloropropane U 0.000550 0.00500 5 06/15/2022 05:01 WG1879398 cis-1,3-Dichloropropene U 0.000555 0.00500 5 06/15/2022 05:01 WG1879398 trans-1,3-Dichloropropene U J4 0.000590 0.00500 5 06/15/2022 05:01 WG1879398 2,2-Dichloropropane U 0.000805 0.00500 5 06/15/2022 05:01 WG1879398 Di-isopropyl ether U 0.000525 0.00500 5 06/15/2022 05:01 WG1879398 Ethylbenzene U 0.000685 0.00500 5 06/15/2022 05:01 WG1879398 Hexachloro-1,3-butadiene U 0.00169 0.00500 5 06/15/2022 05:01 WG1879398 Isopropylbenzene U 0.000525 0.00500 5 06/15/2022 05:01 WG1879398 p-Isopropyltoluene U 0.000600 0.00500 5 06/15/2022 05:01 WG1879398 2-Butanone (MEK)U 0.00595 0.0500 5 06/15/2022 05:01 WG1879398 Methylene Chloride U 0.00215 0.0250 5 06/15/2022 05:01 WG1879398 4-Methyl-2-pentanone (MIBK)U 0.00239 0.0500 5 06/15/2022 05:01 WG1879398 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 25 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 25 of 64 SAMPLE RESULTS - 10 L1502586 MW-5 Collected date/time: 06/06/22 09:02 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Methyl tert-butyl ether U 0.000505 0.00500 5 06/15/2022 05:01 WG1879398 Naphthalene U 0.00500 0.0250 5 06/15/2022 05:01 WG1879398 n-Propylbenzene U 0.000497 0.00500 5 06/15/2022 05:01 WG1879398 Styrene U 0.000590 0.00500 5 06/15/2022 05:01 WG1879398 1,1,1,2-Tetrachloroethane U 0.000735 0.00500 5 06/15/2022 05:01 WG1879398 1,1,2,2-Tetrachloroethane U 0.000665 0.00500 5 06/15/2022 05:01 WG1879398 1,1,2-Trichlorotrifluoroethane U 0.000900 0.00500 5 06/15/2022 05:01 WG1879398 Tetrachloroethene U 0.00150 0.00500 5 06/15/2022 05:01 WG1879398 Toluene U 0.00139 0.00500 5 06/15/2022 05:01 WG1879398 1,2,3-Trichlorobenzene U 0.00115 0.00500 5 06/15/2022 05:01 WG1879398 1,2,4-Trichlorobenzene U 0.00241 0.00500 5 06/15/2022 05:01 WG1879398 1,1,1-Trichloroethane U 0.000745 0.00500 5 06/15/2022 05:01 WG1879398 1,1,2-Trichloroethane U 0.000790 0.00500 5 06/15/2022 05:01 WG1879398 Trichloroethene U 0.000950 0.00500 5 06/15/2022 05:01 WG1879398 Trichlorofluoromethane U 0.000800 0.0250 5 06/15/2022 05:01 WG1879398 1,2,3-Trichloropropane U 0.00119 0.0125 5 06/15/2022 05:01 WG1879398 1,2,4-Trimethylbenzene U 0.00161 0.00500 5 06/15/2022 05:01 WG1879398 1,2,3-Trimethylbenzene U 0.000520 0.00500 5 06/15/2022 05:01 WG1879398 1,3,5-Trimethylbenzene U 0.000520 0.00500 5 06/15/2022 05:01 WG1879398 Vinyl chloride U 0.00117 0.00500 5 06/15/2022 05:01 WG1879398 Xylenes, Total U 0.000870 0.0150 5 06/15/2022 05:01 WG1879398 (S) Toluene-d8 101 80.0-120 06/15/2022 05:01 WG1879398 (S) 4-Bromofluorobenzene 101 77.0-126 06/15/2022 05:01 WG1879398 (S) 1,2-Dichloroethane-d4 93.2 70.0-130 06/15/2022 05:01 WG1879398 Sample Narrative: L1502586-10 WG1879398: Lowest possible diluiton due to sample foaming. Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/FID) High Fraction 1.68 0.0247 0.100 1 06/20/2022 17:27 WG1881165 (S) o-Terphenyl 108 31.0-160 06/20/2022 17:27 WG1881165 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 26 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 26 of 64 SAMPLE RESULTS - 11 L1502586 MW-6 Collected date/time: 06/06/22 08:45 Wet Chemistry by Method 1664A Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH - Oil & Grease 3.37 J 0.763 5.26 1 06/15/2022 16:16 WG1879855 Sample Narrative: L1502586-11 WG1879855: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/MS) Low Fraction U 0.108 0.500 1 06/15/2022 00:06 WG1879398 Acetone U 0.0113 0.0500 1 06/15/2022 00:06 WG1879398 Acrolein U 0.00254 0.0500 1 06/15/2022 00:06 WG1879398 Acrylonitrile U 0.000671 0.0100 1 06/15/2022 00:06 WG1879398 Benzene 0.0183 0.0000941 0.00100 1 06/15/2022 00:06 WG1879398 Bromobenzene U 0.000118 0.00100 1 06/15/2022 00:06 WG1879398 Bromodichloromethane U 0.000136 0.00100 1 06/15/2022 00:06 WG1879398 Bromoform U J4 0.000129 0.00100 1 06/15/2022 00:06 WG1879398 Bromomethane U 0.000605 0.00500 1 06/15/2022 00:06 WG1879398 n-Butylbenzene U 0.000157 0.00100 1 06/15/2022 00:06 WG1879398 sec-Butylbenzene 0.000193 J 0.000125 0.00100 1 06/15/2022 00:06 WG1879398 tert-Butylbenzene 0.000595 J 0.000127 0.00100 1 06/15/2022 00:06 WG1879398 Carbon tetrachloride U 0.000128 0.00100 1 06/15/2022 00:06 WG1879398 Chlorobenzene 0.00321 0.000116 0.00100 1 06/15/2022 00:06 WG1879398 Chlorodibromomethane U J4 0.000140 0.00100 1 06/15/2022 00:06 WG1879398 Chloroethane U 0.000192 0.00500 1 06/15/2022 00:06 WG1879398 2-Chloroethyl vinyl ether U 0.000575 0.0500 1 06/15/2022 00:06 WG1879398 Chloroform U 0.000111 0.00500 1 06/15/2022 00:06 WG1879398 Chloromethane U 0.000960 0.00250 1 06/15/2022 00:06 WG1879398 2-Chlorotoluene U 0.000106 0.00100 1 06/15/2022 00:06 WG1879398 4-Chlorotoluene U 0.000114 0.00100 1 06/15/2022 00:06 WG1879398 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1 06/15/2022 00:06 WG1879398 1,2-Dibromoethane U 0.000126 0.00100 1 06/15/2022 00:06 WG1879398 Dibromomethane U 0.000122 0.00100 1 06/15/2022 00:06 WG1879398 1,2-Dichlorobenzene 0.00187 0.000107 0.00100 1 06/15/2022 00:06 WG1879398 1,3-Dichlorobenzene U 0.000110 0.00100 1 06/15/2022 00:06 WG1879398 1,4-Dichlorobenzene 0.000377 J 0.000120 0.00100 1 06/15/2022 00:06 WG1879398 Dichlorodifluoromethane U 0.000374 0.00500 1 06/15/2022 00:06 WG1879398 1,1-Dichloroethane U 0.000100 0.00100 1 06/15/2022 00:06 WG1879398 1,2-Dichloroethane U 0.0000819 0.00100 1 06/15/2022 00:06 WG1879398 1,1-Dichloroethene U 0.000188 0.00100 1 06/15/2022 00:06 WG1879398 cis-1,2-Dichloroethene 0.000198 J 0.000126 0.00100 1 06/15/2022 00:06 WG1879398 trans-1,2-Dichloroethene U 0.000149 0.00100 1 06/15/2022 00:06 WG1879398 1,2-Dichloropropane U 0.000149 0.00100 1 06/15/2022 00:06 WG1879398 1,1-Dichloropropene U 0.000142 0.00100 1 06/15/2022 00:06 WG1879398 1,3-Dichloropropane U 0.000110 0.00100 1 06/15/2022 00:06 WG1879398 cis-1,3-Dichloropropene U 0.000111 0.00100 1 06/15/2022 00:06 WG1879398 trans-1,3-Dichloropropene U J4 0.000118 0.00100 1 06/15/2022 00:06 WG1879398 2,2-Dichloropropane U 0.000161 0.00100 1 06/15/2022 00:06 WG1879398 Di-isopropyl ether 0.000155 J 0.000105 0.00100 1 06/15/2022 00:06 WG1879398 Ethylbenzene U 0.000137 0.00100 1 06/15/2022 00:06 WG1879398 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 06/15/2022 00:06 WG1879398 Isopropylbenzene 0.000248 J 0.000105 0.00100 1 06/15/2022 00:06 WG1879398 p-Isopropyltoluene U 0.000120 0.00100 1 06/15/2022 00:06 WG1879398 2-Butanone (MEK)U 0.00119 0.0100 1 06/15/2022 00:06 WG1879398 Methylene Chloride U 0.000430 0.00500 1 06/15/2022 00:06 WG1879398 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 1 06/15/2022 00:06 WG1879398 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 27 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 27 of 64 SAMPLE RESULTS - 11 L1502586 MW-6 Collected date/time: 06/06/22 08:45 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Methyl tert-butyl ether U 0.000101 0.00100 1 06/15/2022 00:06 WG1879398 Naphthalene U 0.00100 0.00500 1 06/15/2022 00:06 WG1879398 n-Propylbenzene 0.000197 J 0.0000993 0.00100 1 06/15/2022 00:06 WG1879398 Styrene U 0.000118 0.00100 1 06/15/2022 00:06 WG1879398 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1 06/15/2022 00:06 WG1879398 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1 06/15/2022 00:06 WG1879398 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 1 06/15/2022 00:06 WG1879398 Tetrachloroethene U 0.000300 0.00100 1 06/15/2022 00:06 WG1879398 Toluene 0.000301 J 0.000278 0.00100 1 06/15/2022 00:06 WG1879398 1,2,3-Trichlorobenzene U 0.000230 0.00100 1 06/15/2022 00:06 WG1879398 1,2,4-Trichlorobenzene U 0.000481 0.00100 1 06/15/2022 00:06 WG1879398 1,1,1-Trichloroethane U 0.000149 0.00100 1 06/15/2022 00:06 WG1879398 1,1,2-Trichloroethane U 0.000158 0.00100 1 06/15/2022 00:06 WG1879398 Trichloroethene U 0.000190 0.00100 1 06/15/2022 00:06 WG1879398 Trichlorofluoromethane U 0.000160 0.00500 1 06/15/2022 00:06 WG1879398 1,2,3-Trichloropropane U 0.000237 0.00250 1 06/15/2022 00:06 WG1879398 1,2,4-Trimethylbenzene U 0.000322 0.00100 1 06/15/2022 00:06 WG1879398 1,2,3-Trimethylbenzene U 0.000104 0.00100 1 06/15/2022 00:06 WG1879398 1,3,5-Trimethylbenzene U 0.000104 0.00100 1 06/15/2022 00:06 WG1879398 Vinyl chloride U 0.000234 0.00100 1 06/15/2022 00:06 WG1879398 Xylenes, Total U 0.000174 0.00300 1 06/15/2022 00:06 WG1879398 (S) Toluene-d8 98.3 80.0-120 06/15/2022 00:06 WG1879398 (S) 4-Bromofluorobenzene 100 77.0-126 06/15/2022 00:06 WG1879398 (S) 1,2-Dichloroethane-d4 96.2 70.0-130 06/15/2022 00:06 WG1879398 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/FID) High Fraction 8.59 0.0247 0.100 1 06/20/2022 17:53 WG1881165 (S) o-Terphenyl 109 31.0-160 06/20/2022 17:53 WG1881165 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 28 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 28 of 64 SAMPLE RESULTS - 12 L1502586 MW-7 Collected date/time: 06/06/22 00:00 Wet Chemistry by Method 1664A Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH - Oil & Grease U 0.806 5.56 1 06/15/2022 16:16 WG1879855 Sample Narrative: L1502586-12 WG1879855: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/MS) Low Fraction U 0.108 0.500 1 06/15/2022 00:27 WG1879398 Acetone U 0.0113 0.0500 1 06/15/2022 00:27 WG1879398 Acrolein U 0.00254 0.0500 1 06/15/2022 00:27 WG1879398 Acrylonitrile U 0.000671 0.0100 1 06/15/2022 00:27 WG1879398 Benzene U 0.0000941 0.00100 1 06/15/2022 00:27 WG1879398 Bromobenzene U 0.000118 0.00100 1 06/15/2022 00:27 WG1879398 Bromodichloromethane U 0.000136 0.00100 1 06/15/2022 00:27 WG1879398 Bromoform U J4 0.000129 0.00100 1 06/15/2022 00:27 WG1879398 Bromomethane U 0.000605 0.00500 1 06/15/2022 00:27 WG1879398 n-Butylbenzene U 0.000157 0.00100 1 06/15/2022 00:27 WG1879398 sec-Butylbenzene U 0.000125 0.00100 1 06/15/2022 00:27 WG1879398 tert-Butylbenzene U 0.000127 0.00100 1 06/15/2022 00:27 WG1879398 Carbon tetrachloride U 0.000128 0.00100 1 06/15/2022 00:27 WG1879398 Chlorobenzene U 0.000116 0.00100 1 06/15/2022 00:27 WG1879398 Chlorodibromomethane U J4 0.000140 0.00100 1 06/15/2022 00:27 WG1879398 Chloroethane U 0.000192 0.00500 1 06/15/2022 00:27 WG1879398 2-Chloroethyl vinyl ether U 0.000575 0.0500 1 06/15/2022 00:27 WG1879398 Chloroform U 0.000111 0.00500 1 06/15/2022 00:27 WG1879398 Chloromethane U 0.000960 0.00250 1 06/15/2022 00:27 WG1879398 2-Chlorotoluene U 0.000106 0.00100 1 06/15/2022 00:27 WG1879398 4-Chlorotoluene U 0.000114 0.00100 1 06/15/2022 00:27 WG1879398 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1 06/15/2022 00:27 WG1879398 1,2-Dibromoethane U 0.000126 0.00100 1 06/15/2022 00:27 WG1879398 Dibromomethane U 0.000122 0.00100 1 06/15/2022 00:27 WG1879398 1,2-Dichlorobenzene U 0.000107 0.00100 1 06/15/2022 00:27 WG1879398 1,3-Dichlorobenzene U 0.000110 0.00100 1 06/15/2022 00:27 WG1879398 1,4-Dichlorobenzene U 0.000120 0.00100 1 06/15/2022 00:27 WG1879398 Dichlorodifluoromethane U 0.000374 0.00500 1 06/15/2022 00:27 WG1879398 1,1-Dichloroethane U 0.000100 0.00100 1 06/15/2022 00:27 WG1879398 1,2-Dichloroethane U 0.0000819 0.00100 1 06/15/2022 00:27 WG1879398 1,1-Dichloroethene U 0.000188 0.00100 1 06/15/2022 00:27 WG1879398 cis-1,2-Dichloroethene U 0.000126 0.00100 1 06/15/2022 00:27 WG1879398 trans-1,2-Dichloroethene U 0.000149 0.00100 1 06/15/2022 00:27 WG1879398 1,2-Dichloropropane U 0.000149 0.00100 1 06/15/2022 00:27 WG1879398 1,1-Dichloropropene U 0.000142 0.00100 1 06/15/2022 00:27 WG1879398 1,3-Dichloropropane U 0.000110 0.00100 1 06/15/2022 00:27 WG1879398 cis-1,3-Dichloropropene U 0.000111 0.00100 1 06/15/2022 00:27 WG1879398 trans-1,3-Dichloropropene U J4 0.000118 0.00100 1 06/15/2022 00:27 WG1879398 2,2-Dichloropropane U 0.000161 0.00100 1 06/15/2022 00:27 WG1879398 Di-isopropyl ether U 0.000105 0.00100 1 06/15/2022 00:27 WG1879398 Ethylbenzene U 0.000137 0.00100 1 06/15/2022 00:27 WG1879398 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 06/15/2022 00:27 WG1879398 Isopropylbenzene U 0.000105 0.00100 1 06/15/2022 00:27 WG1879398 p-Isopropyltoluene U 0.000120 0.00100 1 06/15/2022 00:27 WG1879398 2-Butanone (MEK)U 0.00119 0.0100 1 06/15/2022 00:27 WG1879398 Methylene Chloride U 0.000430 0.00500 1 06/15/2022 00:27 WG1879398 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 1 06/15/2022 00:27 WG1879398 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 29 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 29 of 64 SAMPLE RESULTS - 12 L1502586 MW-7 Collected date/time: 06/06/22 00:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Methyl tert-butyl ether U 0.000101 0.00100 1 06/15/2022 00:27 WG1879398 Naphthalene U 0.00100 0.00500 1 06/15/2022 00:27 WG1879398 n-Propylbenzene U 0.0000993 0.00100 1 06/15/2022 00:27 WG1879398 Styrene U 0.000118 0.00100 1 06/15/2022 00:27 WG1879398 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1 06/15/2022 00:27 WG1879398 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1 06/15/2022 00:27 WG1879398 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 1 06/15/2022 00:27 WG1879398 Tetrachloroethene U 0.000300 0.00100 1 06/15/2022 00:27 WG1879398 Toluene U 0.000278 0.00100 1 06/15/2022 00:27 WG1879398 1,2,3-Trichlorobenzene U 0.000230 0.00100 1 06/15/2022 00:27 WG1879398 1,2,4-Trichlorobenzene U 0.000481 0.00100 1 06/15/2022 00:27 WG1879398 1,1,1-Trichloroethane U 0.000149 0.00100 1 06/15/2022 00:27 WG1879398 1,1,2-Trichloroethane U 0.000158 0.00100 1 06/15/2022 00:27 WG1879398 Trichloroethene U 0.000190 0.00100 1 06/15/2022 00:27 WG1879398 Trichlorofluoromethane U 0.000160 0.00500 1 06/15/2022 00:27 WG1879398 1,2,3-Trichloropropane U 0.000237 0.00250 1 06/15/2022 00:27 WG1879398 1,2,4-Trimethylbenzene U 0.000322 0.00100 1 06/15/2022 00:27 WG1879398 1,2,3-Trimethylbenzene U 0.000104 0.00100 1 06/15/2022 00:27 WG1879398 1,3,5-Trimethylbenzene U 0.000104 0.00100 1 06/15/2022 00:27 WG1879398 Vinyl chloride U 0.000234 0.00100 1 06/15/2022 00:27 WG1879398 Xylenes, Total U 0.000174 0.00300 1 06/15/2022 00:27 WG1879398 (S) Toluene-d8 101 80.0-120 06/15/2022 00:27 WG1879398 (S) 4-Bromofluorobenzene 101 77.0-126 06/15/2022 00:27 WG1879398 (S) 1,2-Dichloroethane-d4 94.9 70.0-130 06/15/2022 00:27 WG1879398 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/FID) High Fraction 0.144 0.0247 0.100 1 06/21/2022 12:35 WG1881165 (S) o-Terphenyl 104 31.0-160 06/21/2022 12:35 WG1881165 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 30 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 30 of 64 SAMPLE RESULTS - 14 L1502586 WATER DUP Collected date/time: 06/06/22 00:00 Wet Chemistry by Method 1664A Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH - Oil & Grease U 0.853 5.88 1 06/15/2022 16:16 WG1879855 Sample Narrative: L1502586-14 WG1879855: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/MS) Low Fraction U 0.540 2.50 5 06/15/2022 05:22 WG1879398 Acetone U 0.0565 0.250 5 06/15/2022 05:22 WG1879398 Acrolein U 0.0127 0.250 5 06/15/2022 05:22 WG1879398 Acrylonitrile U 0.00336 0.0500 5 06/15/2022 05:22 WG1879398 Benzene U 0.000471 0.00500 5 06/15/2022 05:22 WG1879398 Bromobenzene U 0.000590 0.00500 5 06/15/2022 05:22 WG1879398 Bromodichloromethane U 0.000680 0.00500 5 06/15/2022 05:22 WG1879398 Bromoform U J4 0.000645 0.00500 5 06/15/2022 05:22 WG1879398 Bromomethane U 0.00303 0.0250 5 06/15/2022 05:22 WG1879398 n-Butylbenzene U 0.000785 0.00500 5 06/15/2022 05:22 WG1879398 sec-Butylbenzene U 0.000625 0.00500 5 06/15/2022 05:22 WG1879398 tert-Butylbenzene U 0.000635 0.00500 5 06/15/2022 05:22 WG1879398 Carbon tetrachloride U 0.000640 0.00500 5 06/15/2022 05:22 WG1879398 Chlorobenzene U 0.000580 0.00500 5 06/15/2022 05:22 WG1879398 Chlorodibromomethane U J4 0.000700 0.00500 5 06/15/2022 05:22 WG1879398 Chloroethane U 0.000960 0.0250 5 06/15/2022 05:22 WG1879398 2-Chloroethyl vinyl ether U 0.00288 0.250 5 06/15/2022 05:22 WG1879398 Chloroform U 0.000555 0.0250 5 06/15/2022 05:22 WG1879398 Chloromethane U 0.00480 0.0125 5 06/15/2022 05:22 WG1879398 2-Chlorotoluene U 0.000530 0.00500 5 06/15/2022 05:22 WG1879398 4-Chlorotoluene U 0.000570 0.00500 5 06/15/2022 05:22 WG1879398 1,2-Dibromo-3-Chloropropane U 0.00138 0.0250 5 06/15/2022 05:22 WG1879398 1,2-Dibromoethane U 0.000630 0.00500 5 06/15/2022 05:22 WG1879398 Dibromomethane U 0.000610 0.00500 5 06/15/2022 05:22 WG1879398 1,2-Dichlorobenzene U 0.000535 0.00500 5 06/15/2022 05:22 WG1879398 1,3-Dichlorobenzene U 0.000550 0.00500 5 06/15/2022 05:22 WG1879398 1,4-Dichlorobenzene U 0.000600 0.00500 5 06/15/2022 05:22 WG1879398 Dichlorodifluoromethane U 0.00187 0.0250 5 06/15/2022 05:22 WG1879398 1,1-Dichloroethane U 0.000500 0.00500 5 06/15/2022 05:22 WG1879398 1,2-Dichloroethane U 0.000409 0.00500 5 06/15/2022 05:22 WG1879398 1,1-Dichloroethene U 0.000940 0.00500 5 06/15/2022 05:22 WG1879398 cis-1,2-Dichloroethene U 0.000630 0.00500 5 06/15/2022 05:22 WG1879398 trans-1,2-Dichloroethene U 0.000745 0.00500 5 06/15/2022 05:22 WG1879398 1,2-Dichloropropane U 0.000745 0.00500 5 06/15/2022 05:22 WG1879398 1,1-Dichloropropene U 0.000710 0.00500 5 06/15/2022 05:22 WG1879398 1,3-Dichloropropane U 0.000550 0.00500 5 06/15/2022 05:22 WG1879398 cis-1,3-Dichloropropene U 0.000555 0.00500 5 06/15/2022 05:22 WG1879398 trans-1,3-Dichloropropene U J4 0.000590 0.00500 5 06/15/2022 05:22 WG1879398 2,2-Dichloropropane U 0.000805 0.00500 5 06/15/2022 05:22 WG1879398 Di-isopropyl ether U 0.000525 0.00500 5 06/15/2022 05:22 WG1879398 Ethylbenzene U 0.000685 0.00500 5 06/15/2022 05:22 WG1879398 Hexachloro-1,3-butadiene U 0.00169 0.00500 5 06/15/2022 05:22 WG1879398 Isopropylbenzene U 0.000525 0.00500 5 06/15/2022 05:22 WG1879398 p-Isopropyltoluene U 0.000600 0.00500 5 06/15/2022 05:22 WG1879398 2-Butanone (MEK)U 0.00595 0.0500 5 06/15/2022 05:22 WG1879398 Methylene Chloride U 0.00215 0.0250 5 06/15/2022 05:22 WG1879398 4-Methyl-2-pentanone (MIBK)U 0.00239 0.0500 5 06/15/2022 05:22 WG1879398 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 31 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 31 of 64 SAMPLE RESULTS - 14 L1502586 WATER DUP Collected date/time: 06/06/22 00:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Methyl tert-butyl ether U 0.000505 0.00500 5 06/15/2022 05:22 WG1879398 Naphthalene U 0.00500 0.0250 5 06/15/2022 05:22 WG1879398 n-Propylbenzene U 0.000497 0.00500 5 06/15/2022 05:22 WG1879398 Styrene U 0.000590 0.00500 5 06/15/2022 05:22 WG1879398 1,1,1,2-Tetrachloroethane U 0.000735 0.00500 5 06/15/2022 05:22 WG1879398 1,1,2,2-Tetrachloroethane U 0.000665 0.00500 5 06/15/2022 05:22 WG1879398 1,1,2-Trichlorotrifluoroethane U 0.000900 0.00500 5 06/15/2022 05:22 WG1879398 Tetrachloroethene U 0.00150 0.00500 5 06/15/2022 05:22 WG1879398 Toluene U 0.00139 0.00500 5 06/15/2022 05:22 WG1879398 1,2,3-Trichlorobenzene U 0.00115 0.00500 5 06/15/2022 05:22 WG1879398 1,2,4-Trichlorobenzene U 0.00241 0.00500 5 06/15/2022 05:22 WG1879398 1,1,1-Trichloroethane U 0.000745 0.00500 5 06/15/2022 05:22 WG1879398 1,1,2-Trichloroethane U 0.000790 0.00500 5 06/15/2022 05:22 WG1879398 Trichloroethene U 0.000950 0.00500 5 06/15/2022 05:22 WG1879398 Trichlorofluoromethane U 0.000800 0.0250 5 06/15/2022 05:22 WG1879398 1,2,3-Trichloropropane U 0.00119 0.0125 5 06/15/2022 05:22 WG1879398 1,2,4-Trimethylbenzene U 0.00161 0.00500 5 06/15/2022 05:22 WG1879398 1,2,3-Trimethylbenzene U 0.000520 0.00500 5 06/15/2022 05:22 WG1879398 1,3,5-Trimethylbenzene U 0.000520 0.00500 5 06/15/2022 05:22 WG1879398 Vinyl chloride U 0.00117 0.00500 5 06/15/2022 05:22 WG1879398 Xylenes, Total U 0.000870 0.0150 5 06/15/2022 05:22 WG1879398 (S) Toluene-d8 101 80.0-120 06/15/2022 05:22 WG1879398 (S) 4-Bromofluorobenzene 98.5 77.0-126 06/15/2022 05:22 WG1879398 (S) 1,2-Dichloroethane-d4 96.1 70.0-130 06/15/2022 05:22 WG1879398 Sample Narrative: L1502586-14 WG1879398: Lowest possible diluiton due to sample foaming. Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time TPH (GC/FID) High Fraction 1.59 0.0247 0.100 1 06/20/2022 18:45 WG1881165 (S) o-Terphenyl 102 31.0-160 06/20/2022 18:45 WG1881165 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 32 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 32 of 64 QUALITY CONTROL SUMMARYWG1877388 Total Solids by Method 2540 G-2011 L1502586-01,02 Method Blank (MB) (MB) R3802002-1 06/10/22 10:25 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1502515-01 Original Sample (OS) • Duplicate (DUP) (OS) L1502515-01 06/10/22 10:25 • (DUP) R3802002-3 06/10/22 10:25 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 75.3 75.8 1 0.726 10 Laboratory Control Sample (LCS) (LCS) R3802002-2 06/10/22 10:25 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 85.0-115 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 33 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 33 of 64 QUALITY CONTROL SUMMARYWG1877389 Total Solids by Method 2540 G-2011 L1502586-03,04,05,06 Method Blank (MB) (MB) R3802028-1 06/10/22 19:49 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1502755-01 Original Sample (OS) • Duplicate (DUP) (OS) L1502755-01 06/10/22 19:49 • (DUP) R3802028-3 06/10/22 19:49 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 83.1 77.2 1 7.40 10 Laboratory Control Sample (LCS) (LCS) R3802028-2 06/10/22 19:49 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 85.0-115 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 34 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 34 of 64 QUALITY CONTROL SUMMARYWG1879855 Wet Chemistry by Method 1664A L1502586-08,09,10,11,12,14 Method Blank (MB) (MB) R3803571-1 06/15/22 16:16 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l TPH - Oil & Grease U 0.725 5.00 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3803571-2 06/15/22 16:16 • (LCSD) R3803571-3 06/15/22 16:16 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% TPH - Oil & Grease 20.0 18.4 16.4 92.0 82.0 64.0-132 11.5 34 L1502586-09 Original Sample (OS) • Matrix Spike (MS) (OS) L1502586-09 06/15/22 16:16 • (MS) R3803571-4 06/15/22 16:16 Spike Amount Original Result MS Result MS Rec.Dilution Rec. Limits MS Qualifier Analyte mg/l mg/l mg/l %% TPH - Oil & Grease 40.0 U 13.9 34.7 1 64.0-132 J6 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 35 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 35 of 64 QUALITY CONTROL SUMMARYWG1878860 Wet Chemistry by Method 9071B L1502586-01,02,03 Method Blank (MB) (MB) R3803169-1 06/15/22 01:24 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH - Oil & Grease U 33.0 100 L1503143-04 Original Sample (OS) • Duplicate (DUP) (OS) L1503143-04 06/15/22 01:24 • (DUP) R3803169-4 06/15/22 01:24 Original Result (dry) DUP Result (dry)Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %% TPH - Oil & Grease 1110 805 1 32.0 J3 20 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3803169-2 06/15/22 01:24 • (LCSD) R3803169-3 06/15/22 01:24 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% TPH - Oil & Grease 2000 1670 1670 83.5 83.5 80.0-120 0.000 20 L1503143-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1503143-04 06/15/22 01:24 • (MS) R3803169-5 06/15/22 01:24 • (MSD) R3803169-6 06/15/22 01:24 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 %%%%% TPH - Oil & Grease 2000 1110 1740 1780 30.4 32.5 1 80.0-120 J6 J6 2.50 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 36 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 36 of 64 QUALITY CONTROL SUMMARYWG1880051 Wet Chemistry by Method 9071B L1502586-04,05,06 Method Blank (MB) (MB) R3803623-1 06/15/22 18:39 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH - Oil & Grease U 33.0 100 L1502707-01 Original Sample (OS) • Duplicate (DUP) (OS) L1502707-01 06/15/22 18:39 • (DUP) R3803623-4 06/15/22 18:39 Original Result (dry) DUP Result (dry)Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte mg/kg mg/kg %% TPH - Oil & Grease U 67.2 1 200 J P1 20 Sample Narrative: OS: Total Oil&Grease is non-detect. Extract was not processed through silica gel. Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3803623-2 06/15/22 18:39 • (LCSD) R3803623-3 06/15/22 18:39 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% TPH - Oil & Grease 2000 1700 1600 85.0 80.0 80.0-120 6.06 20 L1502707-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1502707-01 06/15/22 18:39 • (MS) R3803623-5 06/15/22 18:39 • (MSD) R3803623-6 06/15/22 18:39 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 %%%%% TPH - Oil & Grease 4570 U 3150 3500 68.8 76.6 1 80.0-120 J6 J6 10.7 20 Sample Narrative: OS: Total Oil&Grease is non-detect. Extract was not processed through silica gel. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 37 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 37 of 64 QUALITY CONTROL SUMMARYWG1879361 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-04,05,06 Method Blank (MB) (MB) R3803288-4 06/14/22 15:01 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH (GC/MS) Low Fraction U 0.183 0.500 Benzene U 0.000375 0.00100 1,2-Dichloroethane U 0.000450 0.00100 1,2-Dibromoethane U 0.000250 0.00100 Ethylbenzene U 0.000300 0.00100 Methyl tert-butyl ether U 0.000350 0.00100 Naphthalene U 0.00498 0.00500 Toluene U 0.00123 0.00500 Xylenes, Total U 0.000500 0.00300 Acetone U 0.0207 0.0500 Acrylonitrile U 0.00202 0.0100 Bromobenzene U 0.000275 0.00100 Bromodichloromethane U 0.000725 0.00100 Bromoform U 0.000424 0.00100 Bromomethane U 0.00117 0.00500 n-Butylbenzene U 0.000258 0.00100 sec-Butylbenzene U 0.000201 0.00100 tert-Butylbenzene U 0.000206 0.00100 Carbon tetrachloride U 0.000248 0.00100 Chlorobenzene U 0.000192 0.00100 Chlorodibromomethane U 0.000224 0.00100 Chloroethane U 0.00100 0.00500 Chloroform U 0.00103 0.00500 Chloromethane U 0.000650 0.00250 2-Chlorotoluene U 0.000225 0.00100 4-Chlorotoluene U 0.000691 0.00100 1,2-Dibromo-3-Chloropropane U 0.00190 0.00500 Dibromomethane U 0.000350 0.00100 1,2-Dichlorobenzene U 0.000425 0.00100 1,3-Dichlorobenzene U 0.000600 0.00100 1,4-Dichlorobenzene U 0.000830 0.00100 Dichlorodifluoromethane U 0.000287 0.00500 1,1-Dichloroethane U 0.000268 0.00100 1,1-Dichloroethene U 0.000355 0.00100 cis-1,2-Dichloroethene U 0.000475 0.00100 trans-1,2-Dichloroethene U 0.000500 0.00100 1,2-Dichloropropane U 0.000164 0.00100 1,1-Dichloropropene U 0.000375 0.00100 1,3-Dichloropropane U 0.000225 0.00100 cis-1,3-Dichloropropene U 0.000425 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 38 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 38 of 64 QUALITY CONTROL SUMMARYWG1879361 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-04,05,06 Method Blank (MB) (MB) R3803288-4 06/14/22 15:01 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg trans-1,3-Dichloropropene U 0.000675 0.00100 2,2-Dichloropropane U 0.000375 0.00100 Di-isopropyl ether U 0.000221 0.00100 Hexachloro-1,3-butadiene U 0.000342 0.00100 Isopropylbenzene U 0.000425 0.00100 p-Isopropyltoluene U 0.000204 0.00100 2-Butanone (MEK)U 0.00468 0.0100 Methylene Chloride U 0.00100 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000950 0.0100 n-Propylbenzene U 0.000206 0.00100 Styrene U 0.000223 0.00100 1,1,1,2-Tetrachloroethane U 0.000296 0.00100 1,1,2,2-Tetrachloroethane U 0.000231 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000426 0.00100 Tetrachloroethene U 0.000325 0.00100 1,2,3-Trichlorobenzene U 0.000306 0.00100 1,2,4-Trichlorobenzene U 0.000388 0.00100 1,1,1-Trichloroethane U 0.000370 0.00100 1,1,2-Trichloroethane U 0.000425 0.00100 Trichloroethene U 0.000200 0.00100 Trichlorofluoromethane U 0.000356 0.00500 1,2,3-Trichloropropane U 0.000244 0.00250 1,2,4-Trimethylbenzene U 0.000211 0.00100 1,2,3-Trimethylbenzene U 0.000287 0.00100 1,3,5-Trimethylbenzene U 0.000266 0.00100 Vinyl chloride U 0.000226 0.00100 (S) Toluene-d8 91.8 75.0-131 (S) 4-Bromofluorobenzene 98.1 67.0-138 (S) 1,2-Dichloroethane-d4 104 70.0-130 Laboratory Control Sample (LCS) (LCS) R3803288-1 06/14/22 13:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Benzene 0.0250 0.0222 88.8 70.0-123 1,2-Dichloroethane 0.0250 0.0251 100 65.0-131 1,2-Dibromoethane 0.0250 0.0239 95.6 74.0-128 Ethylbenzene 0.0250 0.0209 83.6 74.0-126 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 39 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 39 of 64 QUALITY CONTROL SUMMARYWG1879361 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-04,05,06 Laboratory Control Sample (LCS) (LCS) R3803288-1 06/14/22 13:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Methyl tert-butyl ether 0.0250 0.0261 104 66.0-132 Naphthalene 0.0250 0.0231 92.4 59.0-130 Toluene 0.0250 0.0200 80.0 75.0-121 Xylenes, Total 0.0750 0.0636 84.8 72.0-127 Acetone 0.125 0.129 103 10.0-160 Acrylonitrile 0.125 0.119 95.2 45.0-153 Bromobenzene 0.0250 0.0216 86.4 73.0-121 Bromodichloromethane 0.0250 0.0255 102 73.0-121 Bromoform 0.0250 0.0258 103 64.0-132 Bromomethane 0.0250 0.0271 108 56.0-147 n-Butylbenzene 0.0250 0.0216 86.4 68.0-135 sec-Butylbenzene 0.0250 0.0201 80.4 74.0-130 tert-Butylbenzene 0.0250 0.0204 81.6 75.0-127 Carbon tetrachloride 0.0250 0.0234 93.6 66.0-128 Chlorobenzene 0.0250 0.0215 86.0 76.0-128 Chlorodibromomethane 0.0250 0.0241 96.4 74.0-127 Chloroethane 0.0250 0.0244 97.6 61.0-134 Chloroform 0.0250 0.0241 96.4 72.0-123 Chloromethane 0.0250 0.0193 77.2 51.0-138 2-Chlorotoluene 0.0250 0.0215 86.0 75.0-124 4-Chlorotoluene 0.0250 0.0217 86.8 75.0-124 1,2-Dibromo-3-Chloropropane 0.0250 0.0231 92.4 59.0-130 Dibromomethane 0.0250 0.0250 100 75.0-122 1,2-Dichlorobenzene 0.0250 0.0229 91.6 76.0-124 1,3-Dichlorobenzene 0.0250 0.0224 89.6 76.0-125 1,4-Dichlorobenzene 0.0250 0.0226 90.4 77.0-121 Dichlorodifluoromethane 0.0250 0.0218 87.2 43.0-156 1,1-Dichloroethane 0.0250 0.0226 90.4 70.0-127 1,1-Dichloroethene 0.0250 0.0218 87.2 65.0-131 cis-1,2-Dichloroethene 0.0250 0.0238 95.2 73.0-125 trans-1,2-Dichloroethene 0.0250 0.0220 88.0 71.0-125 1,2-Dichloropropane 0.0250 0.0233 93.2 74.0-125 1,1-Dichloropropene 0.0250 0.0223 89.2 73.0-125 1,3-Dichloropropane 0.0250 0.0228 91.2 80.0-125 cis-1,3-Dichloropropene 0.0250 0.0250 100 76.0-127 trans-1,3-Dichloropropene 0.0250 0.0243 97.2 73.0-127 2,2-Dichloropropane 0.0250 0.0220 88.0 59.0-135 Di-isopropyl ether 0.0250 0.0230 92.0 60.0-136 Hexachloro-1,3-butadiene 0.0250 0.0204 81.6 57.0-150 Isopropylbenzene 0.0250 0.0215 86.0 72.0-127 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 40 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 40 of 64 QUALITY CONTROL SUMMARYWG1879361 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-04,05,06 Laboratory Control Sample (LCS) (LCS) R3803288-1 06/14/22 13:35 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% p-Isopropyltoluene 0.0250 0.0211 84.4 72.0-133 2-Butanone (MEK)0.125 0.113 90.4 30.0-160 Methylene Chloride 0.0250 0.0224 89.6 68.0-123 4-Methyl-2-pentanone (MIBK)0.125 0.112 89.6 56.0-143 n-Propylbenzene 0.0250 0.0205 82.0 74.0-126 Styrene 0.0250 0.0230 92.0 72.0-127 1,1,1,2-Tetrachloroethane 0.0250 0.0228 91.2 74.0-129 1,1,2,2-Tetrachloroethane 0.0250 0.0226 90.4 68.0-128 1,1,2-Trichlorotrifluoroethane 0.0250 0.0220 88.0 61.0-139 Tetrachloroethene 0.0250 0.0206 82.4 70.0-136 1,2,3-Trichlorobenzene 0.0250 0.0244 97.6 59.0-139 1,2,4-Trichlorobenzene 0.0250 0.0260 104 62.0-137 1,1,1-Trichloroethane 0.0250 0.0228 91.2 69.0-126 1,1,2-Trichloroethane 0.0250 0.0235 94.0 78.0-123 Trichloroethene 0.0250 0.0217 86.8 76.0-126 Trichlorofluoromethane 0.0250 0.0242 96.8 61.0-142 1,2,3-Trichloropropane 0.0250 0.0246 98.4 67.0-129 1,2,4-Trimethylbenzene 0.0250 0.0211 84.4 70.0-126 1,2,3-Trimethylbenzene 0.0250 0.0213 85.2 66.0-132 1,3,5-Trimethylbenzene 0.0250 0.0207 82.8 73.0-127 Vinyl chloride 0.0250 0.0224 89.6 63.0-134 (S) Toluene-d8 90.2 75.0-131 (S) 4-Bromofluorobenzene 101 67.0-138 (S) 1,2-Dichloroethane-d4 103 70.0-130 Laboratory Control Sample (LCS) (LCS) R3803288-2 06/14/22 13:57 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/MS) Low Fraction 5.00 4.30 86.0 52.0-154 (S) Toluene-d8 85.3 75.0-131 (S) 4-Bromofluorobenzene 103 67.0-138 (S) 1,2-Dichloroethane-d4 107 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 41 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 41 of 64 QUALITY CONTROL SUMMARYWG1879858 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-02,03 Method Blank (MB) (MB) R3803602-4 06/15/22 15:05 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH (GC/MS) Low Fraction U 0.183 0.500 Benzene U 0.000375 0.00100 1,2-Dichloroethane U 0.000450 0.00100 1,2-Dibromoethane U 0.000250 0.00100 Ethylbenzene U 0.000300 0.00100 Methyl tert-butyl ether U 0.000350 0.00100 Naphthalene U 0.00498 0.00500 Toluene U 0.00123 0.00500 Xylenes, Total U 0.000500 0.00300 Acetone U 0.0207 0.0500 Acrylonitrile U 0.00202 0.0100 Bromobenzene U 0.000275 0.00100 Bromodichloromethane U 0.000725 0.00100 Bromoform U 0.000424 0.00100 Bromomethane U 0.00117 0.00500 n-Butylbenzene U 0.000258 0.00100 sec-Butylbenzene U 0.000201 0.00100 tert-Butylbenzene U 0.000206 0.00100 Carbon tetrachloride U 0.000248 0.00100 Chlorobenzene U 0.000192 0.00100 Chlorodibromomethane U 0.000224 0.00100 Chloroethane U 0.00100 0.00500 Chloroform U 0.00103 0.00500 Chloromethane U 0.000650 0.00250 2-Chlorotoluene U 0.000225 0.00100 4-Chlorotoluene U 0.000691 0.00100 1,2-Dibromo-3-Chloropropane U 0.00190 0.00500 Dibromomethane U 0.000350 0.00100 1,2-Dichlorobenzene U 0.000425 0.00100 1,3-Dichlorobenzene U 0.000600 0.00100 1,4-Dichlorobenzene U 0.000830 0.00100 Dichlorodifluoromethane U 0.000287 0.00500 1,1-Dichloroethane U 0.000268 0.00100 1,1-Dichloroethene U 0.000355 0.00100 cis-1,2-Dichloroethene U 0.000475 0.00100 trans-1,2-Dichloroethene U 0.000500 0.00100 1,2-Dichloropropane U 0.000164 0.00100 1,1-Dichloropropene U 0.000375 0.00100 1,3-Dichloropropane U 0.000225 0.00100 cis-1,3-Dichloropropene U 0.000425 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 42 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 42 of 64 QUALITY CONTROL SUMMARYWG1879858 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-02,03 Method Blank (MB) (MB) R3803602-4 06/15/22 15:05 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg trans-1,3-Dichloropropene U 0.000675 0.00100 2,2-Dichloropropane U 0.000375 0.00100 Di-isopropyl ether U 0.000221 0.00100 Hexachloro-1,3-butadiene U 0.000342 0.00100 Isopropylbenzene U 0.000425 0.00100 p-Isopropyltoluene U 0.000204 0.00100 2-Butanone (MEK)U 0.00468 0.0100 Methylene Chloride U 0.00100 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000950 0.0100 n-Propylbenzene U 0.000206 0.00100 Styrene U 0.000223 0.00100 1,1,1,2-Tetrachloroethane U 0.000296 0.00100 1,1,2,2-Tetrachloroethane U 0.000231 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000426 0.00100 Tetrachloroethene U 0.000325 0.00100 1,2,3-Trichlorobenzene U 0.000306 0.00100 1,2,4-Trichlorobenzene U 0.000388 0.00100 1,1,1-Trichloroethane U 0.000370 0.00100 1,1,2-Trichloroethane U 0.000425 0.00100 Trichloroethene U 0.000200 0.00100 Trichlorofluoromethane U 0.000356 0.00500 1,2,3-Trichloropropane U 0.000244 0.00250 1,2,4-Trimethylbenzene U 0.000211 0.00100 1,2,3-Trimethylbenzene U 0.000287 0.00100 1,3,5-Trimethylbenzene U 0.000266 0.00100 Vinyl chloride U 0.000226 0.00100 (S) Toluene-d8 90.9 75.0-131 (S) 4-Bromofluorobenzene 98.1 67.0-138 (S) 1,2-Dichloroethane-d4 107 70.0-130 Laboratory Control Sample (LCS) (LCS) R3803602-1 06/15/22 13:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Benzene 0.0250 0.0261 104 70.0-123 1,2-Dichloroethane 0.0250 0.0280 112 65.0-131 1,2-Dibromoethane 0.0250 0.0269 108 74.0-128 Ethylbenzene 0.0250 0.0247 98.8 74.0-126 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 43 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 43 of 64 QUALITY CONTROL SUMMARYWG1879858 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-02,03 Laboratory Control Sample (LCS) (LCS) R3803602-1 06/15/22 13:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Methyl tert-butyl ether 0.0250 0.0286 114 66.0-132 Naphthalene 0.0250 0.0246 98.4 59.0-130 Toluene 0.0250 0.0237 94.8 75.0-121 Xylenes, Total 0.0750 0.0751 100 72.0-127 Acetone 0.125 0.148 118 10.0-160 Acrylonitrile 0.125 0.136 109 45.0-153 Bromobenzene 0.0250 0.0238 95.2 73.0-121 Bromodichloromethane 0.0250 0.0291 116 73.0-121 Bromoform 0.0250 0.0293 117 64.0-132 Bromomethane 0.0250 0.0305 122 56.0-147 n-Butylbenzene 0.0250 0.0253 101 68.0-135 sec-Butylbenzene 0.0250 0.0251 100 74.0-130 tert-Butylbenzene 0.0250 0.0251 100 75.0-127 Carbon tetrachloride 0.0250 0.0290 116 66.0-128 Chlorobenzene 0.0250 0.0250 100 76.0-128 Chlorodibromomethane 0.0250 0.0276 110 74.0-127 Chloroethane 0.0250 0.0276 110 61.0-134 Chloroform 0.0250 0.0283 113 72.0-123 Chloromethane 0.0250 0.0203 81.2 51.0-138 2-Chlorotoluene 0.0250 0.0250 100 75.0-124 4-Chlorotoluene 0.0250 0.0243 97.2 75.0-124 1,2-Dibromo-3-Chloropropane 0.0250 0.0268 107 59.0-130 Dibromomethane 0.0250 0.0289 116 75.0-122 1,2-Dichlorobenzene 0.0250 0.0247 98.8 76.0-124 1,3-Dichlorobenzene 0.0250 0.0243 97.2 76.0-125 1,4-Dichlorobenzene 0.0250 0.0243 97.2 77.0-121 Dichlorodifluoromethane 0.0250 0.0265 106 43.0-156 1,1-Dichloroethane 0.0250 0.0268 107 70.0-127 1,1-Dichloroethene 0.0250 0.0258 103 65.0-131 cis-1,2-Dichloroethene 0.0250 0.0275 110 73.0-125 trans-1,2-Dichloroethene 0.0250 0.0252 101 71.0-125 1,2-Dichloropropane 0.0250 0.0275 110 74.0-125 1,1-Dichloropropene 0.0250 0.0264 106 73.0-125 1,3-Dichloropropane 0.0250 0.0256 102 80.0-125 cis-1,3-Dichloropropene 0.0250 0.0283 113 76.0-127 trans-1,3-Dichloropropene 0.0250 0.0272 109 73.0-127 2,2-Dichloropropane 0.0250 0.0284 114 59.0-135 Di-isopropyl ether 0.0250 0.0261 104 60.0-136 Hexachloro-1,3-butadiene 0.0250 0.0255 102 57.0-150 Isopropylbenzene 0.0250 0.0261 104 72.0-127 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 44 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 44 of 64 QUALITY CONTROL SUMMARYWG1879858 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-02,03 Laboratory Control Sample (LCS) (LCS) R3803602-1 06/15/22 13:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% p-Isopropyltoluene 0.0250 0.0256 102 72.0-133 2-Butanone (MEK)0.125 0.128 102 30.0-160 Methylene Chloride 0.0250 0.0248 99.2 68.0-123 4-Methyl-2-pentanone (MIBK)0.125 0.126 101 56.0-143 n-Propylbenzene 0.0250 0.0245 98.0 74.0-126 Styrene 0.0250 0.0267 107 72.0-127 1,1,1,2-Tetrachloroethane 0.0250 0.0268 107 74.0-129 1,1,2,2-Tetrachloroethane 0.0250 0.0250 100 68.0-128 1,1,2-Trichlorotrifluoroethane 0.0250 0.0272 109 61.0-139 Tetrachloroethene 0.0250 0.0250 100 70.0-136 1,2,3-Trichlorobenzene 0.0250 0.0249 99.6 59.0-139 1,2,4-Trichlorobenzene 0.0250 0.0260 104 62.0-137 1,1,1-Trichloroethane 0.0250 0.0285 114 69.0-126 1,1,2-Trichloroethane 0.0250 0.0261 104 78.0-123 Trichloroethene 0.0250 0.0267 107 76.0-126 Trichlorofluoromethane 0.0250 0.0301 120 61.0-142 1,2,3-Trichloropropane 0.0250 0.0257 103 67.0-129 1,2,4-Trimethylbenzene 0.0250 0.0246 98.4 70.0-126 1,2,3-Trimethylbenzene 0.0250 0.0246 98.4 66.0-132 1,3,5-Trimethylbenzene 0.0250 0.0252 101 73.0-127 Vinyl chloride 0.0250 0.0249 99.6 63.0-134 (S) Toluene-d8 90.9 75.0-131 (S) 4-Bromofluorobenzene 102 67.0-138 (S) 1,2-Dichloroethane-d4 104 70.0-130 Laboratory Control Sample (LCS) (LCS) R3803602-2 06/15/22 13:39 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/MS) Low Fraction 5.00 4.89 97.8 52.0-154 (S) Toluene-d8 83.9 75.0-131 (S) 4-Bromofluorobenzene 101 67.0-138 (S) 1,2-Dichloroethane-d4 109 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 45 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 45 of 64 QUALITY CONTROL SUMMARYWG1880123 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-03 Method Blank (MB) (MB) R3803810-4 06/15/22 15:05 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Naphthalene U 0.00498 0.00500 Bromobenzene U 0.000275 0.00100 n-Butylbenzene U 0.000258 0.00100 sec-Butylbenzene U 0.000201 0.00100 tert-Butylbenzene U 0.000206 0.00100 2-Chlorotoluene U 0.000225 0.00100 4-Chlorotoluene U 0.000691 0.00100 1,2-Dibromo-3-Chloropropane U 0.00190 0.00500 1,2-Dichlorobenzene U 0.000425 0.00100 1,3-Dichlorobenzene U 0.000600 0.00100 1,4-Dichlorobenzene U 0.000830 0.00100 Hexachloro-1,3-butadiene U 0.000342 0.00100 p-Isopropyltoluene U 0.000204 0.00100 n-Propylbenzene U 0.000206 0.00100 1,1,2,2-Tetrachloroethane U 0.000231 0.00100 1,2,3-Trichlorobenzene U 0.000306 0.00100 1,2,4-Trichlorobenzene U 0.000388 0.00100 1,2,3-Trichloropropane U 0.000244 0.00250 1,2,4-Trimethylbenzene U 0.000211 0.00100 1,2,3-Trimethylbenzene U 0.000287 0.00100 1,3,5-Trimethylbenzene U 0.000266 0.00100 (S) Toluene-d8 90.9 75.0-131 (S) 4-Bromofluorobenzene 98.1 67.0-138 (S) 1,2-Dichloroethane-d4 107 70.0-130 Laboratory Control Sample (LCS) (LCS) R3803810-1 06/15/22 13:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Naphthalene 0.0250 0.0246 98.4 59.0-130 Bromobenzene 0.0250 0.0238 95.2 73.0-121 n-Butylbenzene 0.0250 0.0253 101 68.0-135 sec-Butylbenzene 0.0250 0.0251 100 74.0-130 tert-Butylbenzene 0.0250 0.0251 100 75.0-127 2-Chlorotoluene 0.0250 0.0250 100 75.0-124 4-Chlorotoluene 0.0250 0.0243 97.2 75.0-124 1,2-Dibromo-3-Chloropropane 0.0250 0.0268 107 59.0-130 1,2-Dichlorobenzene 0.0250 0.0247 98.8 76.0-124 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 46 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 46 of 64 QUALITY CONTROL SUMMARYWG1880123 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-03 Laboratory Control Sample (LCS) (LCS) R3803810-1 06/15/22 13:17 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% 1,3-Dichlorobenzene 0.0250 0.0243 97.2 76.0-125 1,4-Dichlorobenzene 0.0250 0.0243 97.2 77.0-121 Hexachloro-1,3-butadiene 0.0250 0.0255 102 57.0-150 p-Isopropyltoluene 0.0250 0.0256 102 72.0-133 n-Propylbenzene 0.0250 0.0245 98.0 74.0-126 1,1,2,2-Tetrachloroethane 0.0250 0.0250 100 68.0-128 1,2,3-Trichlorobenzene 0.0250 0.0249 99.6 59.0-139 1,2,4-Trichlorobenzene 0.0250 0.0260 104 62.0-137 1,2,3-Trichloropropane 0.0250 0.0257 103 67.0-129 1,2,4-Trimethylbenzene 0.0250 0.0246 98.4 70.0-126 1,2,3-Trimethylbenzene 0.0250 0.0246 98.4 66.0-132 1,3,5-Trimethylbenzene 0.0250 0.0252 101 73.0-127 (S) Toluene-d8 90.9 75.0-131 (S) 4-Bromofluorobenzene 102 67.0-138 (S) 1,2-Dichloroethane-d4 104 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 47 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 47 of 64 QUALITY CONTROL SUMMARYWG1880627 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-01 Method Blank (MB) (MB) R3804919-4 06/16/22 12:07 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH (GC/MS) Low Fraction U 0.183 0.500 Benzene U 0.000375 0.00100 1,2-Dichloroethane U 0.000450 0.00100 1,2-Dibromoethane U 0.000250 0.00100 Ethylbenzene U 0.000300 0.00100 Methyl tert-butyl ether U 0.000350 0.00100 Naphthalene U 0.00498 0.00500 Toluene U 0.00123 0.00500 Xylenes, Total U 0.000500 0.00300 Acetone U 0.0207 0.0500 Acrylonitrile U 0.00202 0.0100 Bromobenzene U 0.000275 0.00100 Bromodichloromethane U 0.000725 0.00100 Bromoform U 0.000424 0.00100 Bromomethane 0.00210 J 0.00117 0.00500 n-Butylbenzene U 0.000258 0.00100 sec-Butylbenzene U 0.000201 0.00100 tert-Butylbenzene U 0.000206 0.00100 Carbon tetrachloride U 0.000248 0.00100 Chlorobenzene U 0.000192 0.00100 Chlorodibromomethane U 0.000224 0.00100 Chloroethane U 0.00100 0.00500 Chloroform U 0.00103 0.00500 Chloromethane U 0.000650 0.00250 2-Chlorotoluene U 0.000225 0.00100 4-Chlorotoluene U 0.000691 0.00100 1,2-Dibromo-3-Chloropropane U 0.00190 0.00500 Dibromomethane U 0.000350 0.00100 1,2-Dichlorobenzene U 0.000425 0.00100 1,3-Dichlorobenzene U 0.000600 0.00100 1,4-Dichlorobenzene U 0.000830 0.00100 Dichlorodifluoromethane U 0.000287 0.00500 1,1-Dichloroethane U 0.000268 0.00100 1,1-Dichloroethene U 0.000355 0.00100 cis-1,2-Dichloroethene U 0.000475 0.00100 trans-1,2-Dichloroethene U 0.000500 0.00100 1,2-Dichloropropane U 0.000164 0.00100 1,1-Dichloropropene U 0.000375 0.00100 1,3-Dichloropropane U 0.000225 0.00100 cis-1,3-Dichloropropene U 0.000425 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 48 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 48 of 64 QUALITY CONTROL SUMMARYWG1880627 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-01 Method Blank (MB) (MB) R3804919-4 06/16/22 12:07 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg trans-1,3-Dichloropropene U 0.000675 0.00100 2,2-Dichloropropane U 0.000375 0.00100 Di-isopropyl ether U 0.000221 0.00100 Hexachloro-1,3-butadiene U 0.000342 0.00100 Isopropylbenzene U 0.000425 0.00100 p-Isopropyltoluene U 0.000204 0.00100 2-Butanone (MEK)U 0.00468 0.0100 Methylene Chloride U 0.00100 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000950 0.0100 n-Propylbenzene U 0.000206 0.00100 Styrene U 0.000223 0.00100 1,1,1,2-Tetrachloroethane U 0.000296 0.00100 1,1,2,2-Tetrachloroethane U 0.000231 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000426 0.00100 Tetrachloroethene U 0.000325 0.00100 1,2,3-Trichlorobenzene U 0.000306 0.00100 1,2,4-Trichlorobenzene U 0.000388 0.00100 1,1,1-Trichloroethane U 0.000370 0.00100 1,1,2-Trichloroethane U 0.000425 0.00100 Trichloroethene U 0.000200 0.00100 Trichlorofluoromethane U 0.000356 0.00500 1,2,3-Trichloropropane U 0.000244 0.00250 1,2,4-Trimethylbenzene U 0.000211 0.00100 1,2,3-Trimethylbenzene U 0.000287 0.00100 1,3,5-Trimethylbenzene U 0.000266 0.00100 Vinyl chloride U 0.000226 0.00100 (S) Toluene-d8 103 75.0-131 (S) 4-Bromofluorobenzene 105 67.0-138 (S) 1,2-Dichloroethane-d4 94.3 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3804919-1 06/16/22 10:30 • (LCSD) R3804919-5 06/16/22 14:44 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Benzene 0.0250 0.0238 0.0260 95.2 104 70.0-123 8.84 20 1,2-Dichloroethane 0.0250 0.0239 0.0254 95.6 102 65.0-131 6.09 20 1,2-Dibromoethane 0.0250 0.0243 0.0249 97.2 99.6 74.0-128 2.44 20 Ethylbenzene 0.0250 0.0237 0.0248 94.8 99.2 74.0-126 4.54 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 49 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 49 of 64 QUALITY CONTROL SUMMARYWG1880627 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-01 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3804919-1 06/16/22 10:30 • (LCSD) R3804919-5 06/16/22 14:44 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Methyl tert-butyl ether 0.0250 0.0293 0.0308 117 123 66.0-132 4.99 20 Naphthalene 0.0250 0.0234 0.0232 93.6 92.8 59.0-130 0.858 20 Toluene 0.0250 0.0245 0.0257 98.0 103 75.0-121 4.78 20 Xylenes, Total 0.0750 0.0720 0.0762 96.0 102 72.0-127 5.67 20 Acetone 0.125 0.144 0.150 115 120 10.0-160 4.08 31 Acrylonitrile 0.125 0.133 0.147 106 118 45.0-153 10.0 22 Bromobenzene 0.0250 0.0254 0.0261 102 104 73.0-121 2.72 20 Bromodichloromethane 0.0250 0.0236 0.0256 94.4 102 73.0-121 8.13 20 Bromoform 0.0250 0.0228 0.0230 91.2 92.0 64.0-132 0.873 20 Bromomethane 0.0250 0.0299 0.0350 120 140 56.0-147 15.7 20 n-Butylbenzene 0.0250 0.0263 0.0281 105 112 68.0-135 6.62 20 sec-Butylbenzene 0.0250 0.0260 0.0275 104 110 74.0-130 5.61 20 tert-Butylbenzene 0.0250 0.0255 0.0273 102 109 75.0-127 6.82 20 Carbon tetrachloride 0.0250 0.0204 0.0235 81.6 94.0 66.0-128 14.1 20 Chlorobenzene 0.0250 0.0236 0.0248 94.4 99.2 76.0-128 4.96 20 Chlorodibromomethane 0.0250 0.0226 0.0238 90.4 95.2 74.0-127 5.17 20 Chloroethane 0.0250 0.0210 0.0230 84.0 92.0 61.0-134 9.09 20 Chloroform 0.0250 0.0237 0.0261 94.8 104 72.0-123 9.64 20 Chloromethane 0.0250 0.0313 0.0335 125 134 51.0-138 6.79 20 2-Chlorotoluene 0.0250 0.0262 0.0273 105 109 75.0-124 4.11 20 4-Chlorotoluene 0.0250 0.0258 0.0272 103 109 75.0-124 5.28 20 1,2-Dibromo-3-Chloropropane 0.0250 0.0243 0.0242 97.2 96.8 59.0-130 0.412 20 Dibromomethane 0.0250 0.0227 0.0245 90.8 98.0 75.0-122 7.63 20 1,2-Dichlorobenzene 0.0250 0.0252 0.0258 101 103 76.0-124 2.35 20 1,3-Dichlorobenzene 0.0250 0.0252 0.0264 101 106 76.0-125 4.65 20 1,4-Dichlorobenzene 0.0250 0.0249 0.0263 99.6 105 77.0-121 5.47 20 Dichlorodifluoromethane 0.0250 0.0226 0.0257 90.4 103 43.0-156 12.8 20 1,1-Dichloroethane 0.0250 0.0252 0.0315 101 126 70.0-127 J3 22.2 20 1,1-Dichloroethene 0.0250 0.0250 0.0269 100 108 65.0-131 7.32 20 cis-1,2-Dichloroethene 0.0250 0.0240 0.0265 96.0 106 73.0-125 9.90 20 trans-1,2-Dichloroethene 0.0250 0.0264 0.0286 106 114 71.0-125 8.00 20 1,2-Dichloropropane 0.0250 0.0259 0.0278 104 111 74.0-125 7.08 20 1,1-Dichloropropene 0.0250 0.0233 0.0261 93.2 104 73.0-125 11.3 20 1,3-Dichloropropane 0.0250 0.0239 0.0248 95.6 99.2 80.0-125 3.70 20 cis-1,3-Dichloropropene 0.0250 0.0251 0.0270 100 108 76.0-127 7.29 20 trans-1,3-Dichloropropene 0.0250 0.0247 0.0255 98.8 102 73.0-127 3.19 20 2,2-Dichloropropane 0.0250 0.0239 0.0273 95.6 109 59.0-135 13.3 20 Di-isopropyl ether 0.0250 0.0281 0.0385 112 154 60.0-136 J3 J4 31.2 20 Hexachloro-1,3-butadiene 0.0250 0.0252 0.0263 101 105 57.0-150 4.27 20 Isopropylbenzene 0.0250 0.0241 0.0255 96.4 102 72.0-127 5.65 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 50 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 50 of 64 QUALITY CONTROL SUMMARYWG1880627 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-01 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3804919-1 06/16/22 10:30 • (LCSD) R3804919-5 06/16/22 14:44 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% p-Isopropyltoluene 0.0250 0.0254 0.0268 102 107 72.0-133 5.36 20 2-Butanone (MEK)0.125 0.132 0.138 106 110 30.0-160 4.44 24 Methylene Chloride 0.0250 0.0260 0.0287 104 115 68.0-123 9.87 20 4-Methyl-2-pentanone (MIBK)0.125 0.136 0.138 109 110 56.0-143 1.46 20 n-Propylbenzene 0.0250 0.0261 0.0276 104 110 74.0-126 5.59 20 Styrene 0.0250 0.0241 0.0255 96.4 102 72.0-127 5.65 20 1,1,1,2-Tetrachloroethane 0.0250 0.0234 0.0247 93.6 98.8 74.0-129 5.41 20 1,1,2,2-Tetrachloroethane 0.0250 0.0270 0.0270 108 108 68.0-128 0.000 20 1,1,2-Trichlorotrifluoroethane 0.0250 0.0244 0.0263 97.6 105 61.0-139 7.50 20 Tetrachloroethene 0.0250 0.0240 0.0255 96.0 102 70.0-136 6.06 20 1,2,3-Trichlorobenzene 0.0250 0.0238 0.0244 95.2 97.6 59.0-139 2.49 20 1,2,4-Trichlorobenzene 0.0250 0.0243 0.0252 97.2 101 62.0-137 3.64 20 1,1,1-Trichloroethane 0.0250 0.0230 0.0258 92.0 103 69.0-126 11.5 20 1,1,2-Trichloroethane 0.0250 0.0247 0.0252 98.8 101 78.0-123 2.00 20 Trichloroethene 0.0250 0.0229 0.0250 91.6 100 76.0-126 8.77 20 Trichlorofluoromethane 0.0250 0.0226 0.0248 90.4 99.2 61.0-142 9.28 20 1,2,3-Trichloropropane 0.0250 0.0251 0.0251 100 100 67.0-129 0.000 20 1,2,4-Trimethylbenzene 0.0250 0.0264 0.0274 106 110 70.0-126 3.72 20 1,2,3-Trimethylbenzene 0.0250 0.0252 0.0259 101 104 66.0-132 2.74 20 1,3,5-Trimethylbenzene 0.0250 0.0261 0.0273 104 109 73.0-127 4.49 20 Vinyl chloride 0.0250 0.0273 0.0300 109 120 63.0-134 9.42 20 (S) Toluene-d8 106 103 75.0-131 (S) 4-Bromofluorobenzene 97.3 98.5 67.0-138 (S) 1,2-Dichloroethane-d4 105 104 70.0-130 Laboratory Control Sample (LCS) (LCS) R3804919-2 06/16/22 10:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/MS) Low Fraction 5.00 4.13 82.6 52.0-154 (S) Toluene-d8 102 75.0-131 (S) 4-Bromofluorobenzene 105 67.0-138 (S) 1,2-Dichloroethane-d4 101 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 51 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 51 of 64 QUALITY CONTROL SUMMARYWG1880627 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-01 L1501053-26 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1501053-26 06/16/22 17:35 • (MS) R3804919-6 06/16/22 18:24 • (MSD) R3804919-7 06/16/22 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 %%%%% Benzene 180 U 170 161 94.4 89.6 500 10.0-149 5.22 37 1,2-Dichloroethane 180 U 181 170 101 94.4 500 10.0-148 6.56 35 1,2-Dibromoethane 180 U 181 167 101 92.8 500 10.0-148 8.26 34 Ethylbenzene 180 U 164 155 91.2 86.4 500 10.0-160 5.41 38 Methyl tert-butyl ether 180 U 230 217 128 121 500 11.0-147 5.79 35 Naphthalene 180 U 171 166 95.2 92.0 500 10.0-160 3.42 36 Toluene 180 79.0 246 239 92.9 88.9 500 10.0-156 2.97 38 Xylenes, Total 540 U 504 479 93.3 88.8 500 10.0-160 4.98 38 Acetone 900 U 1200 1120 133 125 500 10.0-160 6.46 40 Acrylonitrile 900 U 1060 993 118 110 500 10.0-160 6.45 40 Bromobenzene 180 U 174 163 96.8 90.4 500 10.0-156 6.84 38 Bromodichloromethane 180 U 174 167 96.8 92.8 500 10.0-143 4.22 37 Bromoform 180 U 168 160 93.6 88.8 500 10.0-146 5.26 36 Bromomethane 180 U 216 183 120 102 500 10.0-149 16.6 38 n-Butylbenzene 180 U 173 166 96.0 92.0 500 10.0-160 4.26 40 sec-Butylbenzene 180 U 173 164 96.0 91.2 500 10.0-159 5.13 39 tert-Butylbenzene 180 U 171 163 95.2 90.4 500 10.0-156 5.17 39 Carbon tetrachloride 180 U 144 134 79.9 74.6 500 10.0-145 6.83 37 Chlorobenzene 180 U 166 157 92.0 87.2 500 10.0-152 5.36 39 Chlorodibromomethane 180 U 168 155 93.6 86.4 500 10.0-146 8.00 37 Chloroethane 180 U 164 154 91.2 85.6 500 10.0-146 6.33 40 Chloroform 180 U 171 164 95.2 91.2 500 10.0-146 4.29 37 Chloromethane 180 U 216 215 120 119 500 10.0-159 0.669 37 2-Chlorotoluene 180 U 174 168 96.8 93.6 500 10.0-159 3.36 38 4-Chlorotoluene 180 U 173 164 96.0 91.2 500 10.0-155 5.13 39 1,2-Dibromo-3-Chloropropane 180 U 179 166 99.2 92.0 500 10.0-151 7.53 39 Dibromomethane 180 U 177 164 98.4 91.2 500 10.0-147 7.59 35 1,2-Dichlorobenzene 180 U 174 166 96.8 92.0 500 10.0-155 5.08 37 1,3-Dichlorobenzene 180 U 170 161 94.4 89.6 500 10.0-153 5.22 38 1,4-Dichlorobenzene 180 U 168 161 93.6 89.6 500 10.0-151 4.37 38 Dichlorodifluoromethane 180 U 167 154 92.8 85.6 500 10.0-160 8.07 35 1,1-Dichloroethane 180 U 184 177 102 98.4 500 10.0-147 3.98 37 1,1-Dichloroethene 180 U 174 166 96.8 92.0 500 10.0-155 5.08 37 cis-1,2-Dichloroethene 180 U 171 166 95.2 92.0 500 10.0-149 3.42 37 trans-1,2-Dichloroethene 180 U 189 180 105 100 500 10.0-150 4.69 37 1,2-Dichloropropane 180 U 193 180 107 100 500 10.0-148 6.95 37 1,1-Dichloropropene 180 U 166 155 92.0 86.4 500 10.0-153 6.28 35 1,3-Dichloropropane 180 U 180 167 100 92.8 500 10.0-154 7.47 35 cis-1,3-Dichloropropene 180 U 184 173 102 96.0 500 10.0-151 6.45 37 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 52 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 52 of 64 QUALITY CONTROL SUMMARYWG1880627 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-01 L1501053-26 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1501053-26 06/16/22 17:35 • (MS) R3804919-6 06/16/22 18:24 • (MSD) R3804919-7 06/16/22 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 %%%%% trans-1,3-Dichloropropene 180 U 181 170 101 94.4 500 10.0-148 6.56 37 2,2-Dichloropropane 180 U 168 161 93.6 89.6 500 10.0-138 4.37 36 Di-isopropyl ether 180 U 212 204 118 114 500 10.0-147 3.46 36 Hexachloro-1,3-butadiene 180 U 164 160 91.2 88.8 500 10.0-160 2.67 40 Isopropylbenzene 180 U 167 158 92.8 88.0 500 10.0-155 5.31 38 p-Isopropyltoluene 180 U 171 160 95.2 88.8 500 10.0-160 6.96 40 2-Butanone (MEK)900 U 1080 1010 120 112 500 10.0-160 6.63 40 Methylene Chloride 180 U 203 190 113 106 500 10.0-141 6.59 37 4-Methyl-2-pentanone (MIBK)900 U 1090 999 121 111 500 10.0-160 8.82 35 n-Propylbenzene 180 U 173 164 96.0 91.2 500 10.0-158 5.13 38 Styrene 180 U 174 161 96.8 89.6 500 10.0-160 7.73 40 1,1,1,2-Tetrachloroethane 180 U 167 154 92.8 85.6 500 10.0-149 8.07 39 1,1,2,2-Tetrachloroethane 180 U 197 183 110 102 500 10.0-160 7.58 35 1,1,2-Trichlorotrifluoroethane 180 U 171 163 95.2 90.4 500 10.0-160 5.17 36 Tetrachloroethene 180 U 161 151 89.6 84.0 500 10.0-156 6.45 39 1,2,3-Trichlorobenzene 180 U 171 164 95.2 91.2 500 10.0-160 4.29 40 1,2,4-Trichlorobenzene 180 U 163 155 90.4 86.4 500 10.0-160 4.52 40 1,1,1-Trichloroethane 180 U 166 155 92.0 86.4 500 10.0-144 6.28 35 1,1,2-Trichloroethane 180 U 181 171 101 95.2 500 10.0-160 5.71 35 Trichloroethene 180 U 160 154 88.8 85.6 500 10.0-156 3.67 38 Trichlorofluoromethane 180 U 164 157 91.2 87.2 500 10.0-160 4.48 40 1,2,3-Trichloropropane 180 U 186 170 103 94.4 500 10.0-156 8.91 35 1,2,4-Trimethylbenzene 180 U 176 164 97.6 91.2 500 10.0-160 6.78 36 1,2,3-Trimethylbenzene 180 U 173 163 96.0 90.4 500 10.0-160 6.01 36 1,3,5-Trimethylbenzene 180 U 174 164 96.8 91.2 500 10.0-160 5.96 38 Vinyl chloride 180 U 186 183 103 102 500 10.0-160 1.56 37 (S) Toluene-d8 105 104 75.0-131 (S) 4-Bromofluorobenzene 99.4 98.1 67.0-138 (S) 1,2-Dichloroethane-d4 108 107 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 53 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 53 of 64 QUALITY CONTROL SUMMARYWG1879398 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-07,08,09,10,11,12,14 Method Blank (MB) (MB) R3803268-4 06/14/22 20:15 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l TPH (GC/MS) Low Fraction U 0.108 0.500 Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 2-Chloroethyl vinyl ether U 0.000575 0.0500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 54 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 54 of 64 QUALITY CONTROL SUMMARYWG1879398 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-07,08,09,10,11,12,14 Method Blank (MB) (MB) R3803268-4 06/14/22 20:15 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 102 80.0-120 (S) 4-Bromofluorobenzene 98.8 77.0-126 (S) 1,2-Dichloroethane-d4 88.4 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3803268-1 06/14/22 17:48 • (LCSD) R3803268-2 06/14/22 18:09 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Acetone 0.0250 0.0193 0.0166 77.2 66.4 19.0-160 15.0 27 Acrolein 0.0250 0.0318 0.0303 127 121 10.0-160 4.83 26 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 55 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 55 of 64 QUALITY CONTROL SUMMARYWG1879398 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-07,08,09,10,11,12,14 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3803268-1 06/14/22 17:48 • (LCSD) R3803268-2 06/14/22 18:09 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Acrylonitrile 0.0250 0.0254 0.0243 102 97.2 55.0-149 4.43 20 Benzene 0.00500 0.00521 0.00500 104 100 70.0-123 4.11 20 Bromobenzene 0.00500 0.00517 0.00492 103 98.4 73.0-121 4.96 20 Bromodichloromethane 0.00500 0.00487 0.00473 97.4 94.6 75.0-120 2.92 20 Bromoform 0.00500 0.00328 0.00311 65.6 62.2 68.0-132 J4 J4 5.32 20 Bromomethane 0.00500 0.00585 0.00611 117 122 10.0-160 4.35 25 n-Butylbenzene 0.00500 0.00500 0.00440 100 88.0 73.0-125 12.8 20 sec-Butylbenzene 0.00500 0.00474 0.00475 94.8 95.0 75.0-125 0.211 20 tert-Butylbenzene 0.00500 0.00467 0.00452 93.4 90.4 76.0-124 3.26 20 Carbon tetrachloride 0.00500 0.00396 0.00393 79.2 78.6 68.0-126 0.760 20 Chlorobenzene 0.00500 0.00435 0.00438 87.0 87.6 80.0-121 0.687 20 Chlorodibromomethane 0.00500 0.00351 0.00347 70.2 69.4 77.0-125 J4 J4 1.15 20 Chloroethane 0.00500 0.00481 0.00472 96.2 94.4 47.0-150 1.89 20 2-Chloroethyl vinyl ether 0.0250 0.0232 0.0230 92.8 92.0 51.0-160 0.866 20 Chloroform 0.00500 0.00536 0.00505 107 101 73.0-120 5.96 20 Chloromethane 0.00500 0.00513 0.00512 103 102 41.0-142 0.195 20 2-Chlorotoluene 0.00500 0.00513 0.00497 103 99.4 76.0-123 3.17 20 4-Chlorotoluene 0.00500 0.00526 0.00482 105 96.4 75.0-122 8.73 20 1,2-Dibromo-3-Chloropropane 0.00500 0.00453 0.00398 90.6 79.6 58.0-134 12.9 20 1,2-Dibromoethane 0.00500 0.00424 0.00402 84.8 80.4 80.0-122 5.33 20 Dibromomethane 0.00500 0.00492 0.00497 98.4 99.4 80.0-120 1.01 20 1,2-Dichlorobenzene 0.00500 0.00448 0.00430 89.6 86.0 79.0-121 4.10 20 1,3-Dichlorobenzene 0.00500 0.00438 0.00451 87.6 90.2 79.0-120 2.92 20 1,4-Dichlorobenzene 0.00500 0.00470 0.00437 94.0 87.4 79.0-120 7.28 20 Dichlorodifluoromethane 0.00500 0.00482 0.00486 96.4 97.2 51.0-149 0.826 20 1,1-Dichloroethane 0.00500 0.00502 0.00482 100 96.4 70.0-126 4.07 20 1,2-Dichloroethane 0.00500 0.00500 0.00494 100 98.8 70.0-128 1.21 20 1,1-Dichloroethene 0.00500 0.00597 0.00583 119 117 71.0-124 2.37 20 cis-1,2-Dichloroethene 0.00500 0.00546 0.00524 109 105 73.0-120 4.11 20 trans-1,2-Dichloroethene 0.00500 0.00537 0.00531 107 106 73.0-120 1.12 20 1,2-Dichloropropane 0.00500 0.00490 0.00466 98.0 93.2 77.0-125 5.02 20 1,1-Dichloropropene 0.00500 0.00524 0.00517 105 103 74.0-126 1.34 20 1,3-Dichloropropane 0.00500 0.00459 0.00466 91.8 93.2 80.0-120 1.51 20 cis-1,3-Dichloropropene 0.00500 0.00468 0.00466 93.6 93.2 80.0-123 0.428 20 trans-1,3-Dichloropropene 0.00500 0.00382 0.00407 76.4 81.4 78.0-124 J4 6.34 20 2,2-Dichloropropane 0.00500 0.00523 0.00464 105 92.8 58.0-130 12.0 20 Di-isopropyl ether 0.00500 0.00490 0.00481 98.0 96.2 58.0-138 1.85 20 Ethylbenzene 0.00500 0.00435 0.00436 87.0 87.2 79.0-123 0.230 20 Hexachloro-1,3-butadiene 0.00500 0.00346 0.00301 69.2 60.2 54.0-138 13.9 20 Isopropylbenzene 0.00500 0.00435 0.00443 87.0 88.6 76.0-127 1.82 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 56 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 56 of 64 QUALITY CONTROL SUMMARYWG1879398 Volatile Organic Compounds (GC/MS) by Method 8260B L1502586-07,08,09,10,11,12,14 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3803268-1 06/14/22 17:48 • (LCSD) R3803268-2 06/14/22 18:09 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% p-Isopropyltoluene 0.00500 0.00465 0.00437 93.0 87.4 76.0-125 6.21 20 2-Butanone (MEK)0.0250 0.0238 0.0228 95.2 91.2 44.0-160 4.29 20 Methylene Chloride 0.00500 0.00543 0.00528 109 106 67.0-120 2.80 20 4-Methyl-2-pentanone (MIBK)0.0250 0.0226 0.0224 90.4 89.6 68.0-142 0.889 20 Methyl tert-butyl ether 0.00500 0.00554 0.00527 111 105 68.0-125 5.00 20 Naphthalene 0.00500 0.00394 0.00394 78.8 78.8 54.0-135 0.000 20 n-Propylbenzene 0.00500 0.00517 0.00489 103 97.8 77.0-124 5.57 20 Styrene 0.00500 0.00450 0.00454 90.0 90.8 73.0-130 0.885 20 1,1,1,2-Tetrachloroethane 0.00500 0.00430 0.00425 86.0 85.0 75.0-125 1.17 20 1,1,2,2-Tetrachloroethane 0.00500 0.00468 0.00478 93.6 95.6 65.0-130 2.11 20 1,1,2-Trichlorotrifluoroethane 0.00500 0.00508 0.00477 102 95.4 69.0-132 6.29 20 Tetrachloroethene 0.00500 0.00426 0.00439 85.2 87.8 72.0-132 3.01 20 Toluene 0.00500 0.00451 0.00459 90.2 91.8 79.0-120 1.76 20 1,2,3-Trichlorobenzene 0.00500 0.00360 0.00371 72.0 74.2 50.0-138 3.01 20 1,2,4-Trichlorobenzene 0.00500 0.00358 0.00332 71.6 66.4 57.0-137 7.54 20 1,1,1-Trichloroethane 0.00500 0.00508 0.00499 102 99.8 73.0-124 1.79 20 1,1,2-Trichloroethane 0.00500 0.00473 0.00459 94.6 91.8 80.0-120 3.00 20 Trichloroethene 0.00500 0.00487 0.00478 97.4 95.6 78.0-124 1.87 20 Trichlorofluoromethane 0.00500 0.00428 0.00439 85.6 87.8 59.0-147 2.54 20 1,2,3-Trichloropropane 0.00500 0.00471 0.00463 94.2 92.6 73.0-130 1.71 20 1,2,4-Trimethylbenzene 0.00500 0.00471 0.00460 94.2 92.0 76.0-121 2.36 20 1,2,3-Trimethylbenzene 0.00500 0.00487 0.00456 97.4 91.2 60.0-153 6.57 20 1,3,5-Trimethylbenzene 0.00500 0.00498 0.00482 99.6 96.4 76.0-122 3.27 20 Vinyl chloride 0.00500 0.00504 0.00524 101 105 67.0-131 3.89 20 Xylenes, Total 0.0150 0.0133 0.0130 88.7 86.7 79.0-123 2.28 20 (S) Toluene-d8 97.1 99.4 80.0-120 (S) 4-Bromofluorobenzene 101 103 77.0-126 (S) 1,2-Dichloroethane-d4 95.8 92.8 70.0-130 Laboratory Control Sample (LCS) (LCS) R3803268-3 06/14/22 18:31 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% TPH (GC/MS) Low Fraction 5.00 5.12 102 66.0-132 (S) Toluene-d8 105 80.0-120 (S) 4-Bromofluorobenzene 111 77.0-126 (S) 1,2-Dichloroethane-d4 93.8 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 57 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 57 of 64 QUALITY CONTROL SUMMARYWG1881165 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 L1502586-07,08,09,10,11,12,14 Method Blank (MB) (MB) R3805324-1 06/20/22 13:30 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l TPH (GC/FID) High Fraction U 0.0247 0.100 (S) o-Terphenyl 110 31.0-160 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3805324-2 06/20/22 13:56 • (LCSD) R3805324-3 06/20/22 14:22 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% TPH (GC/FID) High Fraction 1.50 1.45 1.60 96.7 107 50.0-150 9.84 20 (S) o-Terphenyl 103 117 31.0-160 L1502988-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1502988-03 06/20/22 20:05 • (MS) R3805324-4 06/20/22 20:31 • (MSD) R3805324-5 06/20/22 20:57 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 %%%%% TPH (GC/FID) High Fraction 1.43 0.0993 1.52 1.54 99.3 101 1 50.0-150 1.31 20 (S) o-Terphenyl 106 113 31.0-160 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 58 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 58 of 64 QUALITY CONTROL SUMMARYWG1881169 Semi-Volatile Organic Compounds (GC) by Method 8015 L1502586-01,02,03,04,05,06 Method Blank (MB) (MB) R3805357-1 06/20/22 13:01 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH (GC/FID) High Fraction U 0.769 4.00 (S) o-Terphenyl 71.5 18.0-148 Laboratory Control Sample (LCS) (LCS) R3805357-2 06/20/22 13:15 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/FID) High Fraction 50.0 30.4 60.8 50.0-150 (S) o-Terphenyl 48.6 18.0-148 L1502746-08 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1502746-08 06/20/22 16:27 • (MS) R3805357-3 06/20/22 16:40 • (MSD) R3805357-4 06/20/22 16:54 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 %%%%% TPH (GC/FID) High Fraction 58.4 U 28.2 29.5 48.3 50.3 1 50.0-150 J6 4.50 20 (S) o-Terphenyl 29.7 34.3 18.0-148 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 59 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 59 of 64 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. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. 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. J2 Surrogate recovery limits have been exceeded; values are outside lower control limits. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. P1 RPD value not applicable for sample concentrations less than 5 times the reporting limit. V3 The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 60 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 60 of 64 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 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:17 61 of 64 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Salt Lake City, UT 61217496 TASK 3.3 L1502586 11/14/22 12:22 61 of 64