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Home My WebLink AboutDERR-2024-012388 UTAH DEPARTMENT OF GOVERNMENT OPERATIONS STATE FUEL NETWORK CORRECTIVE ACTION PLAN IMPLEMENTATION REPORT UTAH STATE PRISON UINTAH MAXIMUM SECURITY GENERATOR FACILITY IDENTIFICATION NO. 40002081, RELEASE SITE OFU NOVEMBER 18, 2024 CORRECTIVE ACTION PLAN IMPLEMENTATION REPORT UTAH STATE PRISON UINTAH MAXIMUM SECURITY GENERATOR FACILITY IDENTIFICATION NO. 40002081, RELEASE SITE OFU UTAH DEPARTMENT OF GOVERNMENT OPERATIONS STATE FUEL NETWORK 447 West 13800 South Draper, Utah 84070 And UTAH DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF ENVIRONMENTAL RESPONSE AND REMEDIATION 195 North 1950 West Salt Lake City, Utah 84116 PROJECT NO.: 2381400504 DATE: NOVEMBER 11, 2024 WSP USA ENVIRONMENT & INFRASTRUCTURE INC. 10876 S. RIVER FRONT PARKWAY SUITE 250 SOUTH JORDAN, UTAH 84095 WSP.COM WSP USA Environment & Infrastructure Inc. 10876 S. River Front Parkway, Suite 250 South Jordan, Utah 84095 wsp.com November 18, 2024 Mr. Brett Gurney Utah Department of Government Operations Division of Fleet Operations, State of Utah Fuel Network 447 West 13800 South Draper, Utah 84020 Mr. Kevin Beery Utah Department of Environmental Quality Division of Environmental Response and Remediation 195 North 1950 West Salt Lake City, UT 84116 Dear Mr. Gurney and Mr. Beery: Subject: Corrective Action Plan Implementation Report Utah State Prison Uintah Maximum Security Generator 14400 South Pony Express Road, Draper, Utah Facility Identification No. 4002081, Release OFU WSP USA Environment & Infrastructure Inc. (WSP) is pleased to submit this corrective action plan (CAP) implementation report for the Utah State Prison Uintah Generator, located at 14400 South Pony Express Road, Draper, Utah (Site). The Site has Facility ID No. 4002081, Release Site OFU. This report summarizes the soil removal, transportation and disposal, soil sampling, and backfilling activities at the Site, in general accordance with the Utah Division of Environmental Response and Remediation approved workplan and budget OFU-05, dated August 1, 2024. Please contact Ehud Ardon at ehud.ardon@wsp.com if you have any questions or comments regarding this report. Yours sincerely, Ehud Ardon Project Manager Certified UST Consultant # CC-279 Lucas Kerner, PG Lead Consultant, Geologist Certified UST Consultant # CC-285 Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page ii S I G N A T U R E S PREPARED BY Lucas Kerner, PG Lead Consultant, Geologist Certified UST Consultant CC-285 APPROVED1 BY Ehud Ardon Project Manager Certified UST Consultant CC-279 WSP USA Environment & Infrastructure Inc. prepared this report solely for the use of the intended recipient, Utah Department of Government Operations State Fuel Network, and the Utah Division of Environmental Response and Remediation, in accordance with the professional services agreement. The intended recipient is solely responsible for the disclosure of any information contained in this report. The content and opinions contained in the present report are based on the observations and/or information available to WSP USA Environment & Infrastructure Inc. at the time of preparation. If a third party makes use of, relies on, or makes decisions in accordance with this report, said third party is solely responsible for such use, reliance, or decisions. WSP USA Environment & Infrastructure Inc. does not accept responsibility for damages, if any, suffered by any third party as a result of decisions made or actions taken by said third party based on this report. This limitations statement is considered an integral part of this report. The original of this digital file will be conserved by WSP USA Environment & Infrastructure Inc. for a period of not less than 10 years. As the digital file transmitted to the intended recipient is no longer under the control of WSP USA Environment & Infrastructure Inc., its integrity cannot be assured. As such, WSP USA Environment & Infrastructure Inc. does not guarantee any modifications made to this digital file subsequent to its transmission to the intended recipient. 1 Approval of this document is an administrative function indicating readiness for release and does not impart legal liability on to the Approver for any technical content contained herein. Technical accuracy and fit-for-purpose of this content is obtained through the review process. The Approver shall ensure the applicable review process has occurred prior to signing the document. Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page iii EXECUTIVE SUMMARY Corrective Action by soil removal and off-site disposal was conducted at the former Utah State Prison Uintah Generator facility (Site). A total of 1,345 cubic yards of diesel fuel contaminated soil were removed from the Site. Confirmation soil samples were collected from the bottom and from the side slopes of the excavation that was dug to approximately twenty-two feet below the pre-removal ground surface. Temporary soil staging piles were removed from the Site, and confirmation soil samples were also collected from the foot of these piles. Based on the confirmation soil samples analytical results, all contaminated soils were removed from the Site to the depth of the excavation (22 feet). Following the complete removal of soil and confirmation soil sampling, the excavation was backfilled and compacted to the pre-excavation surface elevation. The objective of the CAP with respect to the lateral and vertical extent of soil removal and disposal were met. Based on the results of the soil confirmation sampling, WSP recommends that the DERR grants the site No Further Action status. Project Name Project No. Our Ref. No. Client WSP Month year Page iv TABLE OF CONTENTS EXECUTIVE SUMMARY ....................................................... III 1 INTRODUCTION ............................................................ 1 1.1 Fuel Release and Contaminants of Concern ...... 1 1.2 Summary of Previous Investigations .................... 1 1.3 Remedy Selection ........................................................ 1 2 HEALTH AND SAFETY .............................................. 2 3 CORRECTIVE ACTION .............................................. 3 3.1 Pre-Excavation Activities ......................................... 3 3.1.1 Utility Locating, and Site Survey ....................................................................... 3 3.1.2 Investigation Derived Waste Characterization ....................................... 3 3.2 Soil Removal, Transportation, and Disposal...... 3 3.3 Soil confirmation Sampling Results .................... 4 3.4 Quality Assurance/Quality Control ....................... 5 3.5 Excavation Backfill and Compaction ................... 5 4 CONCLUSIONS AND RECOMMENDATIONS ............................................. 7 Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page v TABLES TABLE 1 FIELD SCREENING INFORMATION TABLE 2 SOIL ANALYTICAL RESULTS TABLE 3 SOIL ANALYTICAL TPH FRACTIONATION RESULTS FIGURES FIGURE 1 SITE MAP FIGURE 2 SITE INVESTIGATION MAP FIGURE 3 EXCAVATION PLAN FIGURE 4 EXCAVATION SOIL SAMPLE LOCATIONS MAP APPENDICES A GEOTECHNICAL MEMORANDUM B PHOTOGRAPHIC LOG C INVESTIGATION DERIVED WASTE CHARACTERIZATION RESULTS D WASTE MANIFESTS E LABORATORY ANALYTICAL REPORTS F PROCTOR MOISTURE DENSITY RELATIONSHIPS AND COMPACTION TEST RESULTS Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page vi ABBREVIATIONS AND ACRONYMS mg/kg milligrams per kilogram ppm parts per million amsl Above Mean Sea Level ASIR Additional Subsurface Investigation Report bgs Below Ground Surface BTEXN Benzene, Toluene, Ethylbenzene, Xylenes, and Naphthalene DERR Division of Environmental Response and Remediation DRO Diesel Range Organics EPA Environmental Protection Agency IDW Investigation Derived Waste IRL Intermountain Regional Landfill ISL Initial Screening Level PID Photoionization Detector QA/QC Quality Assurance/Quality Control SIR Subsurface Investigation Report TPH Total Petroleum Hydrocarbons UST Underground Storage Tank VOC Volatile Organic Compound Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page 1 1 INTRODUCTION The project location is at the former Utah State Prison Uintah Generator, located at 14400 South Pony Express Road, Draper, Utah (Site). The facility has Utah Department of Environmental Quality identification No. 40002081. On November 18, 2022, a release of petroleum from an underground storage tank (UST) system at the Site was reported to the Division of Environmental Response and Remediation (DERR) based on UST closure sampling results. The release was assigned Release Site OFU. A Site Map showing the Site location, and the former UST system is presented as Figure 1. 1.1 FUEL RELEASE AND CONTAMINANTS OF CONCERN One diesel fuel UST was closed by removal on October 5, 2022. The removed system included the UST and the below ground product piping that connected the UST to a backup generator system and boiler room. Total petroleum hydrocarbons (TPH) diesel range organics (DRO) was detected in one closure soil sample collected below the product piping at a depth of three feet below grade surface (bgs) at a location adjacent to the boiler room transition box, at concentration of 1,110 milligrams per kilogram (mg/kg), above the DERR Initial Screening Level (ISL) for TPH-DRO in soil of 500 mg/kg. Other contaminants of concern are benzene, toluene, ethylbenzene, total xylenes, and naphthalene (BTEXN), and gasoline range organics (TPH- GRO). 1.2 SUMMARY OF PREVIOUS INVESTIGATIONS Subsurface investigations were conducted at the Site between September and November, 2023. 20 soil borings were advanced to approximate depth of 45 feet below ground surface (bgs), and one temporary monitoring well was advanced to approximate depth of 100 bgs. Findings of the investigations were summarized in Subsurface Investigation Report (WSP, 2023) and Additional Subsurface Investigation Report (WSP, 2024). Soil boring locations and the approximate extent of TPH-DRO concentrations exceeding the ISL are shown on Figure 2. Based on the conclusions of the investigation reports, the extent of contaminants at the Site was summarized as follows: — Petroleum hydrocarbon contaminants at the Site existed in the Site soils and consist primarily of TPH- DRO. — TPH-DRO contaminants at concentration levels exceeding the DERR ISL were found in subsurface soil samples from soil borings SS-2, SS-3, SB-5, SB-10, SB-11, SB-12, and TMW-1 (Figure 2). — The approximate vertical extent of TPH-DRO contaminants exceeding the DERR ISL was approximately 45 feet below the ground surface (post demolition ground surface, approximately 4451 feet above mean sea level) — Groundwater was identified at approximately 78 ft bgs; none of the analytical parameters were detected above the laboratory method detection limit in groundwater sample collected at the Site. 1.3 REMEDY SELECTION As discussed with the DERR during a Corrective Action Plan (CAP) meeting and subsequent phone call, Soil excavation with off-site disposal (‘dig and haul’) has been selected as the corrective action to address the Site contamination. The corrective action was selected based on lateral extent of contamination, time to completion, and site accessibility. Based on information of future land use, it was agreed with the DERR that the scope of soil removal from the Site would be to a total depth of 22 feet bgs. Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page 2 2 HEALTH AND SAFETY Site-Specific Health and Safety Plan (HASP) was prepared by WSP; the HASP was reviewed and acknowledged by workers entering the project area. Tailgate safety meetings were conducted every morning prior to starting work. All Site workers potentially exposed to contaminated materials were trained according to 40 CFR 1910.120, by 40-hour Hazardous Waste Operations and Emergency Response (HAZWOPER). To ensure the proposed excavation safety, WSP Geotechnical Engineer conducted slope stability modeling and analysis. A Technical Memorandum summarizing the analysis is provided as Appendix A. Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page 3 3 CORRECTIVE ACTION Corrective action through ‘dig and haul’ was implemented as the remedy to address contamination exceeding the ISL. Site work was conducted between August 28, and October 9, 2024, in general accordance with the DERR approved CAP. Soil removal quantities exceeded the CAP estimate of 960 cubic yards; an approval for additional soil removal was granted by the DERR Project Manager. Corrective action activities are described in the following sections and included: — Site survey — Overburden soil excavation and stockpiling — Geo-technical soil samples for proctor and sieve analysis — Contaminated soil removal, transportation, and disposal — Confirmation soil sampling — Excavation backfilling and compaction A photo log showing the excavation progress and the final surface after backfilling was completed is included in Appendix B. 3.1 PRE-EXCAVATION ACTIVITIES 3.1.1 UTILITY LOCATING, AND SITE SURVEY Prior to excavation activities, Blue Stakes was contacted by WSP to have public utilities located and marked at the Site. On August 28, Anderson Engineering staked out the Site, delineating the area designated for removal and the outer extent of the excavation, as shown on the Site Excavation Plan (Figure 3). 3.1.2 INVESTIGATION DERIVED WASTE CHARACTERIZATION Waste profile of soil to be transported to the disposal facility was determined based on waste characterization sample collected from soil borings at the Site during the ASIR. The laboratory analytical report of the waste characterization sample is provided in Appendix C. 3.2 SOIL REMOVAL, TRANSPORTATION, AND DISPOSAL Excavation of soils began on September 3, 2024. A track-out pad was installed on the northwest end of the Site. Overburden soils were excavated and stockpiled for use as backfill, in general accordance with the CAP. Soil removal was conducted between September 5 and October 3, 2024. Removed soils were temporarily staged in stockpile (‘Pile 1’) adjacent to the excavation perimeter and loaded using a front loader into side- dump haul trucks to be disposed of at Intermountain Regional Landfill (IRL). Copies of the waste manifests are provided in Appendix D. Four drums containing IDW that have been staged at the Site from the ASIR were disposed of as part of the Corrective Action activities. Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page 4 Based on landfill acceptance records it was estimated that approximately 960 cubic yards2 soils had been removed from the site by September 10, 2024, equal to the total estimated removal quantity of the CAP. On September 11, 2024, the excavation area was surveyed to measure the extent and depth of the removal. It was estimated that approximately 360 cubic yards were still remaining for complete removal to the extent and depth that were approved in the CAP. Based on that information, the DERR has approved WSP request for budget amendment. Confirmation soil samples were collected throughout the excavation process from the side slopes of the excavation, the bottom of the excavation pit, and from the footprint of the temporary staging stockpiles. A photoionization detector (PID) was used to scan soil for VOCs. Soil samples PID results are summarized in Table 1. Confirmation soil samples were collected on September 12, 2024 from the southwest and southeast slopes of the excavation, at approximately 11 ft below the pre-excavation surface elevation. Confirmation samples were collected as three-point composite and submitted for TPH-DRO analysis. Samples for TPH-GRO and BTEXN were collected as grab samples from the center point of the composite sample. Sample locations are shown on Figure 4. Removal of the remaining soil at the deeper parts of the excavation was conducted by staging the excavator at a lower bench; soil removed from the excavation was temporarily staged to the north and northwest of the excavation (Pile 2 and 3, respectively), and load by a front loader to the haul trucks. On September 23, 2024, the removal area was surveyed again and marked to aid directing the final removal according to the depth and extent specified in the CAP. Soil removal from the excavation pit was concluded on September 25, 2024. Confirmation soil samples were collected from the northwest and northeast slopes of the excavation, at approximately 7 ft below the pre-excavation surface elevation, by the sampling procedures described above. Two confirmation soil samples were also collected from the bottom of the removal pit using the procedures described above. One bottom sample (PIT-W-Bottom) was also submitted for fractionation analysis in accordance with the CAP. Following the completion of soil removal, backfilling activities started on September 26, 2024, as described in Section 3.4 below. On October 2, 2024, after backfilling approximately 11 feet from the pit bottom, at the request of the DERR, a 12-ft deep trench was dug through the backfill (to the approximate depth of one foot below the backfill), and one grab sample was collected from the excavator bucket and submitted for laboratory analysis. The sample was assigned Sample ID PIT-BOTTOM-W-A. The purpose of the additional sample was to demonstrate concentration levels in a grab sample, in accordance with DERR practices. The footprint of each of the temporary staging stockpiles (Pile 1, Pile 2, and Pile 3) was cleaned up by removing approximately 6 inches of the pre-staging surface, followed by confirmation soil sampling as described above. After receiving the analytical results (Table 2), additional removal was conducted from the footprint of Pile 1 on October 3, 2024, followed by additional two confirmation samples (PILE1-BOTTOM-A, and PILE1-BOTTOM-B). 3.3 SOIL CONFIRMATION SAMPLING RESULTS Collected soil samples were placed directly into new, clean, sample containers provided by the analytical laboratory. Following collection, each sample was labeled with the sample identification number, WSP project number, and date and time of sample collection, and placed in an iced cooler and chilled to 2 A factor of 1.58 tons/cubic yards were used based on results of proctor and sieve analysis of samples collected from the excavation. Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page 5 approximately 4 degrees Celsius. Chain-of-custody forms were completed on-site to document delivery of the samples to the analytical laboratory. The samples were submitted for analysis of TPH-GRO and BTEXN by United State Environmental Protection Agency (US EPA) Method 8260, and for TPH-DRO by US EPA Method 8015. Samples submitted for TPH Fractionation were analyzed by Method NJDEP EPH3. Field quality control samples, including one field duplicate and four trip blank samples, were also submitted for analysis. Soil samples analytical results are summarized in Table 2 and Table 3. A copy of the laboratory analytical reports and chain-of-custody documentation are provided in Appendix E. Soil analytical results were compared to the Utah ISLs. Exceedances of the ISLs are highlighted in Table 2 and discussed below.  Confirmation soil samples collected from the slopes of the excavation (within the footprint of the overburden soil) were below the laboratory detection limits for all analytical parameters.  In confirmation samples collected at the bottom of the excavation pit, TPH-DRO was detected at concentrations ranging from 65.3 to 258 mg/kg, below the ISL of 500 mg/kg. TPH-GRO, ethylbenzene, naphthalene, toluene, and total xylenes were also detected at low concentrations, below their respective ISLs (Table 2).  TPH-DRO exceeded the ISL for soil of 500 mg/kg at concentration of 532 mg/kg in one confirmation sample collected from the footprint of Pile 1. There were no exceedances of any analytical parameter in confirmation samples collected after additional removal was conducted from the area of Pile 1 (Section 3.2 above), or from confirmation samples from the footprint of Pile 2 and Pile 3 (Table 2). 3.4 QUALITY ASSURANCE/QUALITY CONTROL Quality Assurance/Quality Control (QA/QC) measures for the September/October 2024 investigation included field and laboratory QA/QC procedures. Samples were collected and submitted for analysis in general accordance with soil and groundwater sampling and handling standard operating procedures (SOPs). All samples were delivered to the analytical laboratory under chain-of-custody documentation in the correct temperature and analyzed within the analytical method specified holding times. Field QC samples, including one field duplicate and three trip blanks, were collected and submitted for analysis. QC samples analytical results are included in Table 2. Based on the laboratory report, none of the data was rejected based on QA/QC parameters, and the data is considered valid for the intended use. 3.5 EXCAVATION BACKFILL AND COMPACTION Prior to backfilling activities, soil sample of backfill materials were analyzed for moisture-density relationship test (proctor) and sieve analysis by WSP materials lab; the results were provided to the excavation contractor. Excavation Backfilling and compaction were conducted from September 26 through October 9, 2024. Overburden soil that was stockpiled on-site was used for backfilling. Additional soils for backfilling were made available by the Draper Prison redevelopment project. Compaction testing was conducted by WSP technician throughout the backfilling at a frequency that was requested by the excavation contractor (minimum of two tests per day were conducted) to ensure minimum 90% compaction. Proctor tests and field compaction density tests, as measured with a nuclear density gauge, 3 The DERR has approved the analysis for fractionation by the New Jersy Department of Environmental Protection (NJDEP) analytical method for Extractable Petroleum Hydrocarbons (EPH). Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page 6 are presented in Appendix F. All field compaction density tests ranged from 92% to 97% compaction successfully meeting the minimum compaction goal of 90%. Corrective Action Plan Implementation Report Project No. 2381400504 Utah Department of Government Operations State Fuel Network WSP November 2024 Page 7 4 CONCLUSIONS AND RECOMMENDATIONS Soil removal and disposal were conducted in accordance with the approved CAP. Contaminated soils were removed to a depth of 22 feet below the pre-excavation surface elevation. A total of 1,345 cubic yards were removed and transported for off-site disposal. Contaminant concentrations in soil at the bottom of the excavation were below the ISL, as confirmed by confirmation soil samples. Based on the finding of the ASIR (WSP, 2024) it is possible that residual soil concentrations above the ISL remain at the Site at a depth greater than 22 feet bgs. Based on the results of the soil confirmation sampling and information of soil removal presented in this Report, WSP recommends that the DERR grants the site No Further Action status. APPENDIX TABLES Table 1: Field Screening Information Sample Date Sample Depth Interval (ft bgs)PID Value (ppm) 9/25/2024 PIT-E-BOTTOM 22' - 23'105 9/25/2024 PIT-W-BOTTOM 22' - 23'237 9/25/2024 PIT-NE-SLOPE 7' - 7.5'1 9/25/2024 PIT-NW-SLOPE 7' - 7.5'1 9/25/2024 PILE1-BOTTOM 0 - 0.5'11 9/25/2024 PILE2-BOTTOM 0 - 0.5'1 9/27/2024 PILE3-BOTTOM 0 - 0.5'0 10/2/2024 PIT-W-BOTTOM-A 23' - 24'472 10/3/2024 PILE1-BOTTOM-A 0 - 0.5'0 10/3/2024 PILE1-BOTTOM-B 0 - 0.5'0 Notes: PID - Photoionization Detector PID measurements were taken from the headspace of a bag. Utah State Prison - Uintah Maximum Security Generator Facility ID No. 4002081, Release OFU Corrective Action Plan Implementation Report Table 2: Soil Analytical Results Sample ID Lab Sample ID Sample Depth (feet) Sample Date Method 8015 8260B/OA1 8260B/OA1 8260B/OA1 8260B/OA1 8260B/OA1 8260B/OA1 Analyte TPH - DRO TPH - GRO BENZENE ETHYLBENZENE NAPHTHALENE TOLUENE XYLENES, TOTAL ISL 500 150 0.2 5.0 51 9.0 142 Sample ID Lab Sample ID Sample Date Sample Type Sample Depth (feet)Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg PIT-E-BOTTOM L1781848-01 9/25/2024 Composite 22.2-23 65.3 PIT-E-BOTTOM-C L1781848-08 9/25/2024 Grab 22.2-23 <9.15 <0.0188 0.0202 J <0.249 <0.0615 0.337 PIT-W-BOTTOM L1781848-02 9/25/2024 Composite 22.2-23 258 PIT-W-BOTTOM-C L1781848-09 9/25/2024 Grab 22.2-23 26.8 <0.0188 0.356 1.49 0.171 J 4.19 PIT-BOTTOM-W-A L1784776-01 10/2/2024 Grab 22.2-23 208 99.2 <0.189 0.502 1.89 <0.943 5.06 PIT-SW-SLOPE L1777354-03 9/12/2024 Composite 11.2-11.5 <4.60 PIT-SW-SLOPE-C L1777354-01 9/12/2024 Grab 11.2-11.5 <0.183 <0.000375 <0.000300 <0.00498 <0.00123 <0.000500 PIT-SE-SLOPE L1777354-04 9/12/2024 Composite 11.2-11.5 <4.33 PIT-SE-SLOPE-C L1777354-02 9/12/2024 Grab 11.2-11.5 <0.183 <0.000375 <0.000300 <0.00498 <0.00123 <0.000500 PIT-NE-SLOPE L1781848-03 9/25/2024 Composite 7.2-7.5 <4.39 PIT-NE-SLOPE-C L1781848-10 9/25/2024 Grab 7.2-7.5 <0.183 <0.000375 <0.000300 <0.00498 <0.00123 <0.000500 PIT-NW-SLOPE L1781848-04 9/25/2024 Composite 7.2-7.5 <4.41 PIT-NW-SLOPE-C L1781848-11 9/25/2024 Grab 7.2-7.5 <0.183 <0.000375 <0.000300 <0.00498 <0.00123 <0.000500 PILE1-BOTTOM L1781848-05 9/25/2024 Composite 0.2-0.5 532 PILE1-BOTTOM-C L1781848-12 9/25/2024 Grab 0.2-0.5 <0.183 <0.000375 <0.000300 <0.00498 <0.00123 <0.000500 PILE1-BOTTOM-A L1785581-01 10/3/2024 Grab 0.2-0.5 10.2 PILE1-BOTTOM-B L1785581-02 10/3/2024 Grab 0.2-0.5 <4.30 PILE2-BOTTOM L1781848-06 9/25/2024 Composite 0.2-0.5 <4.12 PILE2-BOTTOM-C L1781848-13 9/25/2024 Grab 0.2-0.5 <0.183 <0.000375 <0.000300 <0.00498 <0.00123 <0.000500 DUP-09252024 L1781848-07 9/25/2024 Composite 0.2-0.5 <4.13 DUP-09252024-C L1781848-14 9/25/2024 Grab 0.2-0.5 <0.183 <0.000375 <0.000300 <0.00498 <0.00123 <0.000500 PILE3-BOTTOM L1782949-01 9/27/2024 Composite 0.2-0.5 <4.18 PILE3-BOTTOM-C L1782949-02 9/27/2024 Grab 0.2-0.5 <0.183 0.000774 J <0.00300 <0.00498 <0.00123 0.000649 J TRIP BLANK L1781848-15 9/25/2024 N/A N/A <500 <1.00 <1.00 <5.00 <1.00 <3.00 Qualifiers: J - The identification of the analyte is acceptable; the reported value is an estimate. Notes: TPH - Total Petroluem Hydrocarbons DRO - Diesel Range Organics GRO - Gasoline Range Organics ISL - Utah Intial Screening Level mg/kg - milligrams per kilogram Bold - Denotes analyte concentration exceeded laboratory MDL Bold/Highlighted - Denotes analyte concentration exceeded ISL Non-detect results are reported less than the MDL; or, less than RDL if MDL was not reported MDL - Method Detection Limit RDL - Reported Detection Limit Utah State Prison - Uintah Maximum Security Generator Facility ID No. 4002081, Release OFU Corrective Action Plan Implementation Report Page 1 of 1 Table 3: Soil Analytical Fractionation Results Method Analyte Units Result Qual 8015 TPH - DRO mg/kg 258 NJDEP EPH C9-C12 Aliphatics mg/kg 71 NJDEP EPH C12-C16 Aliphatics mg/kg 192 NJDEP EPH C16-C21 Aliphatics mg/kg 171 NJDEP EPH C21-C40 Aliphatics mg/kg <25.4 NJDEP EPH C10-C12 Aromatics mg/kg 27.2 NJDEP EPH C12-C16 Aromatics mg/kg 78.9 NJDEP EPH C16-C21 Aromatics mg/kg 108 NJDEP EPH C21-C36 Aromatics mg/kg <25.4 NJDEP EPH Total EPH mg/kg 682 Notes: TPH - Total Petroluem Hydrocarbons DRO - Diesel Range Organics NJDEP - New Jersey Department of Environmental Protection EPH - Extractable Petroleum Hydrocarbons ISL - Utah Intial Screening Level mg/kg - milligrams per kilogram Bold - Denotes analyte concentrations exceeded laboratory MDL < denotes results are less than the RDL RDL - Reported Detection Limit Qual - Qualifier Sample Date 9/25/2024 Sample ID PIT-W-BOTTOM Lab Sample ID L1781848-01 Sample Depth (feet)22.2-23 Utah State Prison - Uintah Maximum Security Generator Facility ID No. 4002081, Release OFU Corrective Action Plan Implementation Report APPENDIX FIGURES !( Former Generator Former UST System Boiler Room W Bitter b r u s h L n . S P o n y E x p r e s s R d . S M i n u t e m a n D r . §¨¦15 SS-8 Pa t h : ( \ \ c o r p . p b w a n . n e t \ G L B - E & I \ U S \ U S X S J 1 0 0 - S L C 1 \ P r o j e c t F \ E n v i r o n m e n t a l \ P r o j e c t s \ 2 0 2 3 _ P r o j e c t s _ ( 0 5 0 1 - x x x x ) \ 2 3 8 1 4 0 0 5 0 4 S F N D r a p e r P r i s o n G e n e r a t o r \ 1 3 G I S \ _ d w g \ F i g u r e 1 - S i t e M a p . m x d ) 1 / 4 / 2 0 2 4 7 : 5 9 : 2 4 A M Vicinity Map Site Map Utah State Prison Uintah Maximum Security Generator 14400 South Pony Express Road, Draper, Utah Facility ID No. 4002081, Release Site OFU The map shown here has been created with all due and reasonable care and is strictly for use with WSP USA Project Number 23-814-00504. This map has not been certified by a licensed land surveyor, and any third party use of this map comes without warranties of any kind. WSP USA assumes no liability, direct or indirect, whatsoever for any such third party or unintended use. 23-814-00504 EA 1/4/2024 Job No. PM: Date: Scale: FIGURE1 Legend !(UST Closure Sample Former Product Piping 0 500250 Feet ± 1 in = 500 feet UST = Underground Storage Tank Site Location !. !. !. !. !. !. !. !. !. !. !. !. !. !. !. !. !. !. !. Boiler Room SS-1 SS-2 SS-3/TMW-1 SB-4 SB-5 SB-6 SB-7 SB-8 SB-9 SB-10 SB-11 SB-12 SB-13 SB-14 SB-15 SB-16 SB-17 SB-18 SB-19 Pa t h : ( \ \ c o r p . p b w a n . n e t \ G L B - E & I \ U S \ U S X S J 1 0 0 - S L C 1 \ P r o j e c t F \ E n v i r o n m e n t a l \ P r o j e c t s \ 2 0 2 3 _ P r o j e c t s _ ( 0 5 0 1 - x x x x ) \ 2 3 8 1 4 0 0 5 0 4 S F N D r a p e r P r i s o n G e n e r a t o r \ 1 3 G I S \ _ d w g \ F i g u r e 3 - T P H - D R O E x c e e d a n c e s i n S o i l . m x d ) 1 / 4 / 2 0 2 4 8 : 4 5 : 5 4 A M Vicinity Map Site Investigation Map Utah State Prison Uintah Maximum Security Generator 14400 South Pony Express Road, Draper, Utah Facility ID No. 4002081, Release Site OFU The map shown here has been created with all due and reasonable care and is strictly for use with WSP USA Project Number 23-814-00504. This map has not been certified by a licensed land surveyor, and any third party use of this map comes without warranties of any kind. WSP USA assumes no liability, direct or indirect, whatsoever for any such third party or unintended use. 23-814-00504 EA 11/4/2024 Job No. PM: Date: Scale: FIGURE 2 Legend !.Soil Boring Location Approximate extent of TPH-DRO >500 mg/kg in soils at 3-7 ft bgs Approximate extent of TPH-DRO >500 mg/kg in soils at 14-30 ft bgs Approximate extent of TPH-DRO >500 mg/kg in soils at 38-45 ft bgs 0 2010 Feet ± 1 in = 20 feet DERR = Division of Environmental Response and Remediation DRO = Diesel Range Organics TPH = Total Petroleum Hydrocarbons mg/kg = micrograms per kilogram ft bgs = feet below ground surface bold = denotes result exceeded DERR Initial Screening Level Sample Depth (ft bgs) TPH-DRO (mg/kg) 6.5-7 11500 16.5-17 8200 29.5-30 8780 SS-3 Sample Depth (ft bgs) TPH-DRO (mg/kg) 17.5-20 9250 44-45 <60 61-62 <55 75-76 <56 TMW-1 Sample Depth (ft bgs) TPH-DRO (mg/kg) 4-5 <59 16-17 <50 26-27 <66 44-45 5860 SB-5 Sample Depth (ft bgs) TPH-DRO (mg/kg) 4-5 <64 18.5-19.5 3140 23.5-25 3170 38-39 9320 SB-10 Sample Depth (ft bgs) TPH-DRO (mg/kg) 6.5-7 44400 14-15 9940 25.5-26.5 6370 43-44 <60 SB-12 Site Location Sample Depth (ft bgs) TPH-DRO (mg/kg) 3-4 <59 22.5-23.2 946 39.5-40 <50 SS-2 Sample Depth (ft bgs) TPH-DRO (mg/kg) 5-6 <66 17-18 <64 24-25 <60 42.5-43.5 3490 SB-11 !. !. !. !.!.!. !. !.!.!.!. !. !. !.!. !. !. !. !. Boiler Room 4,449 4,441 4,4 3 5 4,445 4 ,4 3 7 Pa t h : ( X : \ U S \ U S X S J 1 0 0 - S L C 1 \ P r o j e c t F \ E n v i r o n m e n t a l \ P r o j e c t s \ 2 0 2 3 _ P r o j e c t s _ ( 0 5 0 1 - 0 5 3 6 ) \ 2 3 8 1 4 0 0 5 0 4 S F N D r a p e r P r i s o n G e n e r a t o r \ 1 3 G I S \ _ d w g \ F i g u r e 1 - E x c a v a t i o n P l a n . m x d ) 6 / 1 2 / 2 0 2 4 1 : 2 1 : 4 0 P M Vicinity Map Excavation Plan Utah State Prison Uintah Maximum Security Generator 14400 South Pony Express Road, Draper, Utah Facility ID No. 4002081, Release Site OFU The map shown here has been created with all due and reasonable care and is strictly for use with WSP USA Project Number 23-814-00504. This map has not been certified by a licensed land surveyor, and any third party use of this map comes without warranties of any kind. WSP USA assumes no liability, direct or indirect, whatsoever for any such third party or unintended use. 23-814-00504 EA 6/12/2024 Job No. PM: Date: Scale: FIGURE 3 Legend !.Soil Boring Location Proposed Excavation Contour (ft AMSL) Bottom of Excavation (4,429 ft AMSL) (1,030 sq.ft.) Top of Excavation (4,451 ft AMSL) (12,870 sq.ft.) 0 6030 Feet ± 1 in = 60 feet DERR = Division of Environmental Response and Remediation DRO = Diesel Range Organics TPH = Total Petroleum Hydrocarbons mg/kg = micrograms per kilogram ft bgs = feet below ground surface bold = denotes result exceeded DERR Initial Screening Level sq.ft. = square feet AMSL = Above Mean Sea Level Sample Depth (ft bgs) TPH-DRO (mg/kg) 6.5-7 11500 16.5-17 8200 29.5-30 8780 SS-3 Sample Depth (ft bgs) TPH-DRO (mg/kg) 17.5-20 9250 44-45 <60 61-62 <55 75-76 <56 TMW-1 Sample Depth (ft bgs) TPH-DRO (mg/kg) 4-5 <59 16-17 <50 26-27 <66 44-45 5860 SB-5 Sample Depth (ft bgs) TPH-DRO (mg/kg) 4-5 <64 18.5-19.5 3140 23.5-25 3170 38-39 9320 SB-10 Sample Depth (ft bgs) TPH-DRO (mg/kg) 6.5-7 44400 14-15 9940 25.5-26.5 6370 43-44 <60 SB-12 Site Location Sample Depth (ft bgs) TPH-DRO (mg/kg) 3-4 <59 22.5-23.2 946 39.5-40 <50 SS-2 Sample Depth (ft bgs) TPH-DRO (mg/kg) 5-6 <66 17-18 <64 24-25 <60 42.5-43.5 3490 SB-11 !( !( !( !( !( !( !( !( !( !( !( !( ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! Boiler Room PILE1-BOTTOM-C PILE1-BOTTOM-A PILE1-BOTTOM-B PILE2-BOTTOM-C PILE3-BOTTOM-C PIT-NE-SLOPE-C PIT-NW-SLOPE-C PIT-SE-SLOPE-C PIT-SW-SLOPE-C PIT-BOTTOM-W-A PIT-W-BOTTOM-C PIT-E-BOTTOM-C PIT-SW- S L O P E PIT - S E - S L O P E PIT - N W - S L O P E PI L E 2 - B O T T O M P I T - W - B O T T O M PI L E 1 - B O T T O M PI L E 3 - B O T T O M PIT-E-B O T T O M PIT-N E - S L O P E Pile 2 Pile 1 Pile 3 Pa t h : ( X : \ U S \ U S X S J 1 0 0 - S L C 1 \ P r o j e c t F \ E n v i r o n m e n t a l \ P r o j e c t s \ 2 0 2 3 _ P r o j e c t s _ ( 0 5 0 1 - 0 5 3 6 ) \ 2 3 8 1 4 0 0 5 0 4 S F N D r a p e r P r i s o n G e n e r a t o r \ 1 3 G I S \ _ d w g \ F i g u r e 4 - E x c a v a t i o n S o i l S a m p l e L o c a t i o n s M a p . m x d ) 1 1 / 7 / 2 0 2 4 3 : 1 1 : 1 1 P M Vicinity Map Excavation Soil SampleLocations Map Utah State Prison Uintah Maximum Security Generator 14400 South Pony Express Road, Draper, Utah Facility ID No. 4002081, Release Site OFU The map shown here has been created with all due and reasonable care and is strictly for use with WSP USA Project Number 23-814-00504. This map has not been certified by a licensed land surveyor, and any third party use of this map comes without warranties of any kind. WSP USA assumes no liability, direct or indirect, whatsoever for any such third party or unintended use. 23-814-00504 EA 11/7/2024 Job No. PM: Date: Scale: FIGURE4 Legend !(Grab Sample Composite Sample Location Excavation Contour (2 ft interval) (ft AMSL) Bottom of Excavation (4,429 ft AMSL) (1,030 sq.ft.) Top of Excavation (4,451 ft AMSL) (12,870 sq.ft.) Temporary Staging Stockpile 0 3015 Feet ± 1 in = 30 feet sq.ft. = square feet AMSL = Above Mean Sea Level Site Location ! !! APPENDIX GEOTECHNICAL MEMORANDUM Technical Memorandum To: Ehud Ardon & Lucas Kerner, WSP USA Environment & Infrastructure Inc. From: D. Fadling and M. Larson / WSP USA Environment & Infrastructure Inc. Date: 29 August 2024 Subject: Slope Stability Analysis of Proposed Excavation at Former Utah State Prison Site Draper, Utah Project No. US-EI-2381400504 This technical memorandum prepared by WSP USA Environment & Infrastructure Inc. (WSP) to aid in the planned excavation at the former Utah State Prison in Draper, Utah. Project Description An excavation pit near the boiler room of the former Utah State Prison has been proposed to remove contaminated soils. The depth of the pit would be 22-feet, exceeding OSHA regulations by 2-feet and therefore a slope stability analysis was required to ensure site safety. The pit was modeled in Slide2 with a 1.5H:1V slope ratio and a 2H:1V slope ratio for comparison. A minimum Factor of Safety (FoS) of 1.3 is considered acceptable for temporary excavation slopes. A full description of modeling methods is available in Attachment A. Results All scenarios had a minimum FoS of 1.3 or greater, indicating that both slope ratios are within the accepted standards for temporary excavations. Full results are summarized in Table 1 and model figures are available in Attachment B. Table 1 Minimum FoS Values for Slope Models Model Number (Slope Ratio) Scenario Name Minimum FoS 1 (1.5H:1V) 22-B3 Base Materials 1.3 22-B4 Base Materials 1.3 22-B5 Base Materials 1.3 2 (2H:1V) 22-B3 Base Materials 1.7 22-B4 Base Materials 1.7 22-B5 Base Materials 1.7 Modeled failure surfaces along cohesionless materials are represented as infinite-slope failures at very shallow depths, akin to material sluffing. It is considered unlikely for these failures to occur during excavation, but if material does move it would most likely be shallow erosions not requiring support or remediation. Deeper failures are not expected. Materials in the field may differ from those modeled. If different subsurface conditions, including the presence of groundwater, are encountered, our office must be notified immediately to re-evaluate the slope stability. Please contact us if you have questions or need additional information. Sincerely, WSP USA Environment & Infrastructure, Inc. David K. Fadling, PE UT #349987-2202 McKenna Larson, EIT Senior Geotechnical Engineer Geological Engineer Attachment A: Modeling Methods Slope Stability Model Methods The following sections describe the modeling process of the proposed excavation pit at the former Utah State Prison. All work was conducted in the RocScience program Slide2. Slope Boundary The slope boundary was defined using contour intervals drawn by WSP in a June 2024 excavation plan (Attachment A-1). Two model master scenarios were created, one with a 1.5H:1V slope ratio and the other with a 2H:1V slope ratio, to compare potential failure surfaces. Spencer and Morgenstern-Price analytical methods with 50 slices, a 0.01 tolerance, and 75 maximum iterations were used when running the models. Material Boundaries Material boundaries were defined using borehole log data from borings drilled by RB&G Engineering Inc. (RB&G) in a 2022 geotechnical study of the former prison. Full borehole logs are included in Attachment A-2. While no borings were drilled directly in the proposed excavation area, it was assumed that subsurface conditions were laterally continuous enough to be used in modeling. Figure 1 displays the locations of the RB&G borings compared to the pit location. Boring 22-B3, located approximately 380-feet northwest of the excavation pit site, was the primary source in defining slope materials. The final elevation of boring 22-B3 was 4435.5-feet, 6.5-feet above the final elevation of the proposed pit, leaving a material gap at the slope base. Three scenarios were modeled to supplement the missing material information at depth, including (1) continuing the 22-B3 material to the slope base; (2) using material information from boring 22-B4; and (3) using material information from boring 22-B5. These boundaries were kept the same across the slope-ratio master scenarios. Figure 1 Excavation Pit and Borings used in Modeling Locations Material Properties Material properties were defined in the Slide2 program using the Mohr-Coulomb Failure Criterion. Corrected standard penetration, (N1)60, values reported in the 2022 boring logs were correlated with friction angle (φ) in degrees and dry unit weight (γ) in pounds per cubic foot (pcf) using methods described by the Washington State Department of Transportation (2015), California Department of Transportation (2014), and Sorensen & Okkels (2013). Torvane stress test results reported by RB&G were used to define cohesion by converting to pounds per square foot (psf). Samples with no torvane tests were left 0-pcf cohesion, which may not fully represent the materials in-situ. Values from soil sample test results falling within the same USCS classification on a single boring log were averaged to find the material values used in modeling. For example, four SPTs were conducted on samples labeled Silty Sand (SP-SM) on boring log 22-B3. All four corrected SPT results were used to find friction angle and dry unit weight individually and the resulting properties were averaged and reported. Subsurface materials from older borings in the vicinity of the excavation pit were compared to the 2022 borings, however standard penetration test (SPT) values were not used in model calculations due to a lack of information on older logs, including the ground elevation, exact locations, and data needed in calculating the corrected standard penetration values. Modeled materials are summarized in Table 1. Table 1 Material Properties Used in Slide2 Material Label in Model USCS1 Friction Angle2 (º) Dry Unit Weight3 (pcf) Cohesion (psf) 22-B3 Lean Clay w/ Sand CL 30 98 820 22-B3 Silty Sand w/ Clay Lenses SM 35 95 300 22-B3 Sand w / Silt SP-SM 39 107 0 22-B4 Silty Sand SM 41 115 0 22-B5 Lean Clay w/ Sand CL 37 91 752 Table Notes: 1. As defined by RB&G Engineering Inc. 2. Calculated using the SPT vs Drained Friction Angle established by WSDOT (2015). 3. Approximated from SPT vs Unit Weight graphs by California Department of Transportation (Caltrans) (2014). Groundwater Groundwater was not encountered in the borings nearest the excavation site and was therefore not included in slope models. The presence of groundwater would be the greatest factor in altering results. Slope Surfaces To avoid an infinite-slope issue in finding the model Factor of Safety (FoS), a circular grid of 20-x to 20-y intervals was used. The grid was automatically generated by the Slide2 program and is included in model figures. This method was used on each of the models. The cohesionless materials displayed very shallow soils as having the minimum factor of safety. This could be the result of a continued infinite-slope, or a sluffing of near-surface material. References California Department of Transportation (Caltrans). 2014. Geotechnical Manual. RB&G Engineering, Inc. 2022. Geotechnical Study for Demolition Point of the Mountain (Old Draper Prison Site), Draper Utah. Prepared for Utah State Division of Facilities Construction Management. Sorensen, K.K, & Okkels, N. 2013. Correlation Between Drained Shear Strength and Plasticity Index of Undisturbed Overconsolidated Clays. Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering. Washington State Department of Transportation (WSDOT). 2015. Geotechnical Design Manual. Publication M46-03.11. Attachment A-1: Excavation Plan !. !. !. !.!.!. !. !.!.!.!. !. !. !.!. !. !. !. !. Boiler Room 4,449 4,441 4,4 3 5 4,445 4 ,4 3 7 Pa t h : ( X : \ U S \ U S X S J 1 0 0 - S L C 1 \ P r o j e c t F \ E n v i r o n m e n t a l \ P r o j e c t s \ 2 0 2 3 _ P r o j e c t s _ ( 0 5 0 1 - 0 5 3 6 ) \ 2 3 8 1 4 0 0 5 0 4 S F N D r a p e r P r i s o n G e n e r a t o r \ 1 3 G I S \ _ d w g \ F i g u r e 1 - E x c a v a t i o n P l a n . m x d ) 6 / 1 2 / 2 0 2 4 1 : 2 1 : 4 0 P M Vicinity Map Excavation Plan Utah State Prison Uintah Maximum Security Generator 14400 South Pony Express Road, Draper, Utah Facility ID No. 4002081, Release Site OFU The map shown here has been created with all due and reasonable care and is strictly for use with WSP USA Project Number 23-814-00504. This map has not been certified by a licensed land surveyor, and any third party use of this map comes without warranties of any kind. WSP USA assumes no liability, direct or indirect, whatsoever for any such third party or unintended use. 23-814-00504 EA 6/12/2024 Job No. PM: Date: Scale: FIGURE 1 Legend !.Soil Boring Location Proposed Excavation Contour (ft AMSL) Bottom of Excavation (4,429 ft AMSL) (1,030 sq.ft.) Top of Excavation (4,451 ft AMSL) (12,870 sq.ft.) 0 6030 Feet ± 1 in = 60 feet DERR = Division of Environmental Response and Remediation DRO = Diesel Range Organics TPH = Total Petroleum Hydrocarbons mg/kg = micrograms per kilogram ft bgs = feet below ground surface bold = denotes result exceeded DERR Initial Screening Level sq.ft. = square feet AMSL = Above Mean Sea Level Sample Depth (ft bgs) TPH-DRO (mg/kg) 6.5-7 11500 16.5-17 8200 29.5-30 8780 SS-3 Sample Depth (ft bgs) TPH-DRO (mg/kg) 17.5-20 9250 44-45 <60 61-62 <55 75-76 <56 TMW-1 Sample Depth (ft bgs) TPH-DRO (mg/kg) 4-5 <59 16-17 <50 26-27 <66 44-45 5860 SB-5 Sample Depth (ft bgs) TPH-DRO (mg/kg) 4-5 <64 18.5-19.5 3140 23.5-25 3170 38-39 9320 SB-10 Sample Depth (ft bgs) TPH-DRO (mg/kg) 6.5-7 44400 14-15 9940 25.5-26.5 6370 43-44 <60 SB-12 Site Location Sample Depth (ft bgs) TPH-DRO (mg/kg) 3-4 <59 22.5-23.2 946 39.5-40 <50 SS-2 Sample Depth (ft bgs) TPH-DRO (mg/kg) 5-6 <66 17-18 <64 24-25 <60 42.5-43.5 3490 SB-11 Attachment A-2: RB&G Boring Logs 34 0 0 19 62 16 17 12 13 16 17 18 16 12 NP 10,18,15,(72) 4,8,9,(39) T 0.48 2,2,4,(14) T 0.34 Pushed 4,4,5,(17) T 0.15 7,11,13,(38) 9,13,18,(45) 9,12,15,(34) brown, sl. moist, very dense brown, sl. moist brown, sl. moist, firm to stiff dk. brown to green-brown, moist, firm brown, sl. moist green-brown, moist, med. dense brown, moist, dense brown, moist, dense brown to brown-white, moist, dense SILTY SAND W/GRAVEL LEAN CLAY W/SAND SANDY LEAN CLAY sand lenses & seams SILTY SAND clay lenses & seams SAND W/SILT BOTTOM OF HOLE SM SM CL CL CL SM SP-SM SP-SM SP-SM 21.2 15.0 81 38 DRILL HOLE LOG Ot h e r T e s t s 10/6/22 202201-026-1 Gradation Si l t / C l a y ( % ) Gr a v e l ( % ) Sa n d ( % ) USCS (AASHTO) BORING NO. 22-B3 DEPTH TO WATER - INITIAL:AFTER 24 HOURS: PROJECT: N.M. See Legend Sample Material Description 60 DATE COMPLETED: DFCM DAVIS DRILLING DRILLING METHOD: CLIENT: THE POINT LAT: 40.492555° N, LONG: 111.900987° W CME-75 / HOLLOW STEM AUGER DRY' Ty p e Li q u i d L i m i t Atter. Pl a s t . I n d e x Dr y D e n s i t y (p c f ) Mo i s t u r e Co n t e n t ( % ) Re c . ( i n ) Elev. (ft) Li t h o l o g y DRILLER: SHEET 1 OF 1 Depth (ft) LOCATION:10/6/22 PROJECT NUMBER: DATE STARTED: GROUND ELEVATION: LOGGED BY: Blow Count per 6" (N ) Value Torvane (tsf) Pocket Penetrometer (tsf) LEGEND: Thin-Walled Tube Sample C.S., J.B. ~4457' 4455 4450 4445 4440 4435 5 10 15 20 1 Torvane (tsf) Pocket Penetrometer (tsf) Split Spoon Sample2" OD Split Spoon (SPT) 2.5" OD Split Spoon 3" OD Split Spoon * 2,3,2,(6) T 0.45 PP 2.0 Pushed T 0.45 PP 2.0 With Liners OTHER TESTS UC = Unconfined Compression CT = Consolidation DS = Direct Shear UU = Unconsolidated, Undrained CU = Consolidated, Undrained Chem. = pH, Resistivity, Sulfate, Chloride Hyd. = Hydrometer DC = Dispersive Clay SS = Soluble Salts DH _ L O G _ V 8 - 2 0 1 4 - 1 T H E _ P O I N T _ D F C M . G P J U S E V A L . G D T 1 1 / 1 0 / 2 2 CT UC 1,509 psf 40 0 5 14 18 15 16 16 15 18 16 15 5,7,8,(33) T 0.35 5,5,6,(26) T 0.42 Pushed T 0.69 T 0.29 7,13,20,(68) 10,12,16,(54) 9,14,18,(58) 10,11,19,(51) 6,13,15,(44) brown, sl. moist, firm brown, moist, firm brown, sl. moist, firm to stiff brown, moist, firm brown, wet, very dense brown, wet, very dense brown, wet, very dense brown, wet, very dense brown-green, wet, dense LEAN CLAY organics LEAN CLAY silty sand lenses SAND W/SILT SILTY SAND BOTTOM OF HOLE CL CL CL CL SP-SM SM SM SM SM 31.889.3 95 DRILL HOLE LOG Ot h e r T e s t s 10/6/22 202201-026-1 Gradation Si l t / C l a y ( % ) Gr a v e l ( % ) Sa n d ( % ) USCS (AASHTO) BORING NO. 22-B4 DEPTH TO WATER - INITIAL:AFTER 24 HOURS: PROJECT: 8.5' 10/21/22 See Legend Sample Material Description 60 DATE COMPLETED: DFCM DAVIS DRILLING DRILLING METHOD: CLIENT: THE POINT LAT: 40.49323° N, LONG: 111.904159° W CME-75 / HOLLOW STEM AUGER N.M. Ty p e Li q u i d L i m i t Atter. Pl a s t . I n d e x Dr y D e n s i t y (p c f ) Mo i s t u r e Co n t e n t ( % ) Re c . ( i n ) Elev. (ft) Li t h o l o g y DRILLER: SHEET 1 OF 1 Depth (ft) LOCATION:10/6/22 PROJECT NUMBER: DATE STARTED: GROUND ELEVATION: LOGGED BY: Blow Count per 6" (N ) Value Torvane (tsf) Pocket Penetrometer (tsf) LEGEND: Thin-Walled Tube Sample C.S., J.B. ~4446' 4445 4440 4435 4430 4425 5 10 15 20 1 Torvane (tsf) Pocket Penetrometer (tsf) Split Spoon Sample2" OD Split Spoon (SPT) 2.5" OD Split Spoon 3" OD Split Spoon * 2,3,2,(6) T 0.45 PP 2.0 Pushed T 0.45 PP 2.0 With Liners OTHER TESTS UC = Unconfined Compression CT = Consolidation DS = Direct Shear UU = Unconsolidated, Undrained CU = Consolidated, Undrained Chem. = pH, Resistivity, Sulfate, Chloride Hyd. = Hydrometer DC = Dispersive Clay SS = Soluble Salts DH _ L O G _ V 8 - 2 0 1 4 - 1 T H E _ P O I N T _ D F C M . G P J U S E V A L . G D T 1 1 / 1 0 / 2 2 Chem. CT 40 28 0 0 12 26 17 12 18 12 18 18 18 18 11 9 9,5,4,(20) T 0.56 0,2,4,(14) T 0.38 1,2,2,(9) T 0.43 Pushed 1,1,2,(6) T 0.51 1,0,1,(2) T 0.44 1,1,2,(4) T 0.28 Pushed T 0.17 brown, sl. moist brown, sl. moist brown, sl. moist brown, sl. moist, stiff brown, moist, firm brown, very moist, firm brown-green, moist brown, moist green-brown, moist, stiff green-brown, very moist, firm green-brown, very moist green-brown, very moist, firm green-brown, very moist, soft GRAVEL W/SILT & SAND SILTY SAND W/GRAVEL SILTY SAND LEAN CLAY SILT W/SAND plastic, silty sand lenses LEAN CLAY SAND W/SILT LEAN CLAY sand lenses & seams LEAN CLAY silty sand lenses SANDY LEAN CLAY sand lenses LEAN CLAY LEAN CLAY W/SAND vertical sand seam through full length of sample BOTTOM OF HOLE GP-GM SM SM CL CL ML CL SP-SM CL CL CL CL CL 37.0 23.7102.0 88 74 DRILL HOLE LOG Ot h e r T e s t s 10/6/22 202201-026-1 Gradation Si l t / C l a y ( % ) Gr a v e l ( % ) Sa n d ( % ) USCS (AASHTO) BORING NO. 22-B5 DEPTH TO WATER - INITIAL:AFTER 24 HOURS: PROJECT: DRY'10/21/22 See Legend Sample Material Description 60 DATE COMPLETED: DFCM DAVIS DRILLING DRILLING METHOD: CLIENT: THE POINT LAT: 40.495200° N, LONG: 111.895861° W CME-75 / HOLLOW STEM AUGER N.M. Ty p e Li q u i d L i m i t Atter. Pl a s t . I n d e x Dr y D e n s i t y (p c f ) Mo i s t u r e Co n t e n t ( % ) Re c . ( i n ) Elev. (ft) Li t h o l o g y DRILLER: SHEET 1 OF 1 Depth (ft) LOCATION:10/6/22 PROJECT NUMBER: DATE STARTED: GROUND ELEVATION: LOGGED BY: Blow Count per 6" (N ) Value Torvane (tsf) Pocket Penetrometer (tsf) LEGEND: Thin-Walled Tube Sample C.S., J.B. ~4445' 4440 4435 4430 4425 5 10 15 20 1 Torvane (tsf) Pocket Penetrometer (tsf) Split Spoon Sample2" OD Split Spoon (SPT) 2.5" OD Split Spoon 3" OD Split Spoon * 2,3,2,(6) T 0.45 PP 2.0 Pushed T 0.45 PP 2.0 With Liners OTHER TESTS UC = Unconfined Compression CT = Consolidation DS = Direct Shear UU = Unconsolidated, Undrained CU = Consolidated, Undrained Chem. = pH, Resistivity, Sulfate, Chloride Hyd. = Hydrometer DC = Dispersive Clay SS = Soluble Salts DH _ L O G _ V 8 - 2 0 1 4 - 1 T H E _ P O I N T _ D F C M . G P J U S E V A L . G D T 1 1 / 1 0 / 2 2 Attachment B: Slope Stability Analysis Figures 1.3041.3041.3041.304 33.0 ft 22.0 ft Phi (°) Cohesion (psf) Strength Type Unit Weight (lbs/ft3) ColorMaterial Name 30820Mohr- Coulomb98 22-B3 Lean Clay w/ Sand 35300Mohr- Coulomb95 22-B3 Silty Sand w/ clay lenses 410Mohr- Coulomb11122-B3 Sand w/ silt Min FSMethod Name 1.304Spencer 1.304 GLE / Morgenstern- Price 1 1.5 Safety Factor 0.000 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000 4.250 4.500 4.750 5.000 5.250 5.500 5.750 6.000+ 60 50 40 30 20 10 0 -10 0 10 20 30 40 50 60 70 80 Scenario 22-B3 Base MaterialsGroup1.5H:1V Company WSP USA Inc.Drawn By M. Larson Drawing No.2024-08-28-001Date2024-08-28 Project US-EI-2381400504 Old Draper Prison Excavation Pit Design 1.3041.3041.3041.304 33.0 ft 22.0 ft Phi (°) Cohesion (psf) Strength Type Unit Weight (lbs/ft3) ColorMaterial Name 30820Mohr- Coulomb9822-B3 Lean Clay w/ Sand 35300Mohr- Coulomb95 22-B3 Silty Sand w/ clay lenses 410Mohr- Coulomb11122-B3 Sand w/ silt 410Mohr- Coulomb11522-B4 SM Min FSMethod Name 1.304Spencer 1.304GLE / Morgenstern-Price 1 1.5 Safety Factor 0.000 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000 4.250 4.500 4.750 5.000 5.250 5.500 5.750 6.000+ 60 50 40 30 20 10 0 -10 0 10 20 30 40 50 60 70 80 90 Scenario 22-B4 Base MaterialsGroup1.5H:1V Company WSP USA Inc.Drawn By M. Larson Drawing No.2024-08-28-002Date2024-08-28 Project US-EI-2381400504 Old Draper Prison Excavation Pit Design 1.3061.3061.3061.306 33.0 ft 22.0 ft Phi (°) Cohesion (psf) Strength Type Unit Weight (lbs/ft3) ColorMaterial Name 30820Mohr- Coulomb9822-B3 Lean Clay w/ Sand 35300Mohr- Coulomb9522-B3 Silty Sand w/ clay lenses 410Mohr- Coulomb11122-B3 Sand w/ silt 37752Mohr- Coulomb9122-B5 CL Min FSMethod Name 1.306Spencer 1.306GLE / Morgenstern- Price 1 1.5 Safety Factor 0.000 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000 4.250 4.500 4.750 5.000 5.250 5.500 5.750 6.000+ 60 50 40 30 20 10 0 -10 0 10 20 30 40 50 60 70 80 90 Scenario 22-B5 Base MaterialsGroup1.5H:1V Company WSP USA Inc.Drawn By M. Larson Drawing No.2024-08-28-003Date2024-08-28 Project US-EI-2381400504 Old Draper Prison Excavation Pit Design 1.7391.7391.7391.739 22.0 ft 44.0 ft Phi (°) Cohesion (psf) Strength Type Unit Weight (lbs/ft3) ColorMaterial Name 30820Mohr- Coulomb9822-B3 Lean Clay w/ Sand 35300Mohr- Coulomb9522-B3 Silty Sand w/ clay lenses 410Mohr- Coulomb11122-B3 Sand w/ silt Min FSMethod Name 1.739Spencer 1.739GLE / Morgenstern- Price 1 2 Safety Factor 0.000 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000 4.250 4.500 4.750 5.000 5.250 5.500 5.750 6.000+ 60 40 20 0 -10 0 10 20 30 40 50 60 70 80 90 100 Scenario 22-B3 Base MaterialsGroup2H:1V Company WSP USA Inc.Drawn By M. Larson Drawing No.2024-08-28-004Date2024-08-28 Project US-EI-2381400504 Old Draper Prison Excavation Pit Design 1.7391.7391.7391.739 44.0 ft 22.0 ft Phi (°) Cohesion (psf) Strength Type Unit Weight (lbs/ft3) ColorMaterial Name 30820Mohr- Coulomb9822-B3 Lean Clay w/ Sand 35300Mohr- Coulomb95 22-B3 Silty Sand w/ clay lenses 410Mohr- Coulomb11122-B3 Sand w/ silt 410Mohr- Coulomb11522-B4 SM Min FSMethod Name 1.739Spencer 1.739GLE / Morgenstern- Price 1 2 Safety Factor 0.000 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000 4.250 4.500 4.750 5.000 5.250 5.500 5.750 6.000+ 60 40 20 0 -10 0 10 20 30 40 50 60 70 80 90 100 Scenario 22-B4 Base MaterialsGroup2H:1V Company WSP USA Inc.Drawn By M. Larson Drawing No.2024-08-28-005Date2024-08-28 Project US-EI-2381400504 Old Draper Prison Excavation Pit Design 1.7411.7411.7411.741 44.0 ft 22.0 ft Phi (°) Cohesion (psf) Strength Type Unit Weight (lbs/ft3) ColorMaterial Name 30820Mohr- Coulomb9822-B3 Lean Clay w/ Sand 35300Mohr- Coulomb95 22-B3 Silty Sand w/ clay lenses 410Mohr- Coulomb11122-B3 Sand w/ silt 37752Mohr- Coulomb9122-B5 CL Min FSMethod Name 1.741Spencer 1.741GLE / Morgenstern- Price 1 2 Safety Factor 0.000 0.250 0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000 4.250 4.500 4.750 5.000 5.250 5.500 5.750 6.000+ 60 40 20 0 -10 0 10 20 30 40 50 60 70 80 90 100 Scenario 22-B5 Base MaterialsGroup2H:1V Company WSP USA Inc.Drawn By M. Larson Drawing No.2024-08-28-006Date2024-08-28 Project US-EI-2381400504 Old Draper Prison Excavation Pit Design APPENDIX PHOTOGRAPHIC LOG Page 1 WSP USA Photographic Record Client: State Fuel Network Project Number: US-EI-2381400504 Site Name: Utah State Prison Uintah Maximum Security Generator Site Location: Draper, UT Photographer: Rachel Ridge Date: 9/4/2024 Direction: South Comments: Photo of stockpiled overburden soil. Photographer: Rachel Ridge Date: 9/5/2024 Direction: Southwest Comments: Photo of four 55-gallon drums of Investigation Derived Waste (IDW) from previous boring event. On right, metal pipes that were encountered during excavation. Page 2 WSP USA Photographic Record Client: State Fuel Network Project Number: US-EI-2381400504 Site Name: Utah State Prison Uintah Maximum Security Generator Site Location: Draper, UT Photographer: Rachel Ridge Date: 9/5/2024 Direction: West Comments: Photo of excavation on Day 2. Note stockpile of contaminated soil to the N (right) of pit (Pile 1). Photographer: Rachel Ridge Date: 9/10/2024 Direction: West Comments: A picture of the pit near the end of Day 5. Approximately 850 cubic yards of soil had been removed. Page 3 WSP USA Photographic Record Client: State Fuel Network Project Number: US-EI-2381400504 Site Name: Utah State Prison Uintah Maximum Security Generator Site Location: Draper, UT Photographer: Rachel Ridge Date: 9/23/2024 Direction: South Comments: Image of the pit being excavated on Day 10. Approximately 1,146 cubic yards of soil had been removed. Photographer: Rachel Ridge Date: 9/25/2024 Direction: South Comments: Image of the south side of the pit on Day 12 of excavation; pink flags indicate inner circle. Some further excavation was completed on this day, and backfilling began the next day. Page 4 WSP USA Photographic Record Client: State Fuel Network Project Number: US-EI-2381400504 Site Name: Utah State Prison Uintah Maximum Security Generator Site Location: Draper, UT Photographer: Rachel Ridge Date: 10/2/2024 Direction: North Comments: 12-ft trench dug through 11-ft of backfill to collect sample for fractionation analysis. Photographer: Rachel Ridge Date: 10/2/2024 Direction: Southeast Comments: Sample of contaminated soil taken from the bottom of the pit in bucket. Page 5 WSP USA Photographic Record Client: State Fuel Network Project Number: US-EI-2381400504 Site Name: Utah State Prison Uintah Maximum Security Generator Site Location: Draper, UT Photographer: Rachel Ridge Date: 10/3/2024 Direction: West Comments: Image of pit being backfilled. Photographer: Rachel Ridge Date: 10/10/2024 Direction: West Comments: Image of backfilled pit. A total of 1,326 cubic yards were removed from the site and taken to the Intermountain Regional Landfill. APPENDIX INVESTIGATION DERIVED WASTE CHARACTERIZATION RESULTS Summary Table of IDW Profile Sample Analytical Results Method Analyte Units RSL/ISL Result Qual 8015 Flashpoint mg/kg ->200 9071B/1664B Oil & Grease mg/kg 1000 2,230 1311 Percent Pass mg/kg -<0.1 9040C/9045D pH mg/kg -8.6 6010D ARSENIC mg/kg 3 10.1 6010D BARIUM mg/kg 220000 246 6010D CADMIUM mg/kg 980 0.737 6010D CHROMIUM mg/kg 1,800,000^22.2 6010D LEAD mg/kg 800 37.0 7471A MERCURY mg/kg 46 0.032 6010D SELENIUM mg/kg 5800 <2.89 6010D SILVER mg/kg 5800 0.492 J 8260D 1,1,1-TRICHLOROETHANE mg/kg 36000 <0.32 8260D 1,1,2-TRICHLOROETHANE mg/kg 5 <0.32 8260D 1,1,2-TRICHLOROTRIFLUOROETHANE mg/kg 28000 <0.32 8260D 1,1-DICHLOROETHENE mg/kg 1000 <0.32 8260D 1,2-DICHLOROBENZENE mg/kg 9300 <0.32 8260D 1,2-DICHLOROETHANE mg/kg 2 <0.32 8260D 1,4-DICHLOROBENZENE mg/kg 11 <0.32 8260D 2-NITROPROPANE mg/kg NSL <3.22 J-Low L 8260D ACETONE mg/kg 670000 <3.22 8260D BENZENE mg/kg 5.1/0.2 <0.13 8260D CARBON DISULFIDE <0.64 8260D CARBON TETRACHLORIDE mg/kg 2.9 <0.32 8260D CHLOROBENZENE mg/kg 1300 <0.32 8260D CHLOROFORM mg/kg 1.4 <0.32 8260D CYCLOHEXANONE 130000 <3.22 J-Low L 8260D ETHYL ACETATE 2600 <0.64 8260D ETHYL ETHER 230000 <0.32 8260D ETHYLBENZENE mg/kg 25/5 4.37 8260D HEXACHLORO-1,3-BUTADIENE mg/kg 5.3 <0.32 8260D ISOBUTANOL 350000 <6.44 8260D METHYL ETHYL KETONE 190000 <0.64 8260D METHYL ISOBUTYL KETONE 140000 <1.61 8260D METHYLENE CHLORIDE mg/kg 1000 <0.64 8260D N-BUTYL ALCOHOL 120000 <16.1 8260D TETRACHLOROETHENE mg/kg 100 <0.32 8260D TOLUENE mg/kg 47000/9 0.66 8260D TRICHLOROETHENE mg/kg 6 <0.32 8260D TRICHLOROFLUOROMETHANE mg/kg 350000 <0.32 8260D VINYL CHLORIDE mg/kg 1.7 <0.13 8260D XYLENES, TOTAL mg/kg 2500/142 40.8 Notes: EPA - Environmental Protection Agency. RSL - Environmental Protection Agency Regional Screening Levels; Industrial Soil from November 2022. *ISL - Utah Initial Screening Level; November 2005 ^ - Using Chromium 3 Industrial Soil Screening Level. NSL - No Screening Level Bold concentration levels reported above reporting Limit Bold and highlighted concentration levels exceed the EPA RSL and/or ISL Qual - Qualifier. Non-detect results are reported less than the MDL Client Sample ID SB-12 (6-10) Date Collected 11/16/2023 Sample Depth 6-10 Feet Lab Sample ID 23K1524-01 j-Low L: Estimated low due to low recovery of LCS NA - Not Analyzed. Qualifiers: J: Detected but below the Reporting Limit; therefore, result is an estimated concentration Utah State Prison - Uinta Maximum Security Generator Facility ID No. 4002081, Release OFU Subsurface Investigation Report Page 1 of 1 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 WSP USA Environmental & Infrastructure Inc. Attn: Corey Buchanan 10876 South River Front Parkway Suite 250 South Jordan, UT 84095 Work Order: 23K1524 Project: Draper Prison Generator #2381400504 12/22/2023 Approved By: Reed Hendricks, Lab Director 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 16 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com WSP USA Environmental & Infrastructure Inc. Corey Buchanan 10876 South River Front Parkway Suite 250 South Jordan, UT 84095 PO#: Receipt: Date Reported: Project Name: C014105838 11/16/23 16:10 @ 3.2 °C 12/22/2023 Draper Prison Generator #2381400504 Sample ID: SB-12 (6-10) Lab ID: 23K1524-01Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 11/16/23 13:25 Preparation Date/Time Sampled By: Corey Buchanan Minimum Reporting Limit MethodResult Inorganic °F 11/22/2311/22/2380.0 EPA 1010MOD>200Flashpoint mg/kg dry 11/17/2311/17/23321EPA 1664BMod2230Oil & Grease (HEM) %11/21/2311/20/230.1 EPA 1311/1311NDPercent Pass pH Units 11/17/2311/17/230.1 EPA 9040C/9045D8.6pH %11/20/2311/17/230.1 CTF800077.7Total Solids Metals mg/kg dry 11/21/2311/18/237.23 EPA 6010D/3050B10.1Arsenic, Total mg/kg dry 11/21/2311/18/230.723 EPA 6010D/3050B246Barium, Total mg/kg dry 11/21/2311/18/230.723 EPA 6010D/3050B0.737Cadmium, Total mg/kg dry 11/21/2311/18/230.723 EPA 6010D/3050B22.2Chromium, Total mg/kg dry 11/21/2311/18/237.23 EPA 6010D/3050B37.0Lead, Total mg/kg dry 11/20/2311/20/230.027 EPA 7471A0.032Mercury, Total mg/kg dry 11/21/2311/18/232.89 EPA 6010D/3050BNDSelenium, Total mg/kg dry J11/21/2311/18/230.723 EPA 6010D/3050B0.492Silver, Total Volatile Organic Compounds mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BND1,1,1-Trichloroethane mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BND1,1,2-Trichloroethane mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BND1,1,2-Trichlorotrifluoroethane mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BND1,1-Dichloroethene mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BND1,2-Dichlorobenzene mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BND1,2-Dichloroethane mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BND1,4-Dichlorobenzene mg/kg dry J-LOW-L11/29/2311/29/233.22 EPA 8260D/5030BND2-Nitropropane mg/kg dry 11/29/2311/29/233.22 EPA 8260D/5030BNDAcetone mg/kg dry 11/29/2311/29/230.13 EPA 8260D/5030BNDBenzene mg/kg dry 11/29/2311/29/230.64 EPA 8260D/5030BNDCarbon Disulfide mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BNDCarbon Tetrachloride mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BNDChlorobenzene mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BNDChloroform mg/kg dry J-LOW-L11/29/2311/29/233.22 EPA 8260D/5030BNDCyclohexanone mg/kg dry 11/29/2311/29/230.64 EPA 8260D/5030BNDEthyl Acetate mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BNDEthyl Ether mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030B4.37Ethylbenzene mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BNDHexachlorobutadiene mg/kg dry 11/29/2311/29/236.44 EPA 8260D/5030BNDIsobutanol mg/kg dry 11/29/2311/29/230.64 EPA 8260D/5030BNDMethyl Ethyl Ketone mg/kg dry 11/29/2311/29/231.61 EPA 8260D/5030BNDMethyl Isobutyl Ketone Project Name: Draper Prison Generator #2381400504 CtF WO#: 23K1524 www.ChemtechFord.com Page 2 of 16Page 2 of 16 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com WSP USA Environmental & Infrastructure Inc. Corey Buchanan 10876 South River Front Parkway Suite 250 South Jordan, UT 84095 PO#: Receipt: Date Reported: Project Name: C014105838 11/16/23 16:10 @ 3.2 °C 12/22/2023 Draper Prison Generator #2381400504 Sample ID: SB-12 (6-10) (cont.) Lab ID: 23K1524-01Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 11/16/23 13:25 Preparation Date/Time Sampled By: Corey Buchanan Minimum Reporting Limit MethodResult Volatile Organic Compounds (cont.) mg/kg dry 11/29/2311/29/230.64 EPA 8260D/5030BNDMethylene Chloride mg/kg dry 11/29/2311/29/2316.1 EPA 8260D/5030BNDn-Butyl Alcohol mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BNDTetrachloroethene mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030B0.66Toluene mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BNDTrichloroethene mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030BNDTrichlorofluoromethane mg/kg dry 11/29/2311/29/230.13 EPA 8260D/5030BNDVinyl Chloride mg/kg dry 11/29/2311/29/230.32 EPA 8260D/5030B40.8Xylenes, total Project Name: Draper Prison Generator #2381400504 CtF WO#: 23K1524 www.ChemtechFord.com Page 3 of 16Page 3 of 16 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com WSP USA Environmental & Infrastructure Inc. Corey Buchanan 10876 South River Front Parkway Suite 250 South Jordan, UT 84095 PO#: Receipt: Date Reported: Project Name: C014105838 11/16/23 16:10 @ 3.2 °C 12/22/2023 Draper Prison Generator #2381400504 Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Flag Descriptions J = Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag). J-LOW-L = Estimated low due to low recovery of LCS Project Name: Draper Prison Generator #2381400504 CtF WO#: 23K1524 www.ChemtechFord.com Page 4 of 16Page 4 of 16 Page 5 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte Duplicate - EPA 1010MOD QC Sample ID: BXK1129-DUP1 QC Source Sample: 23K1524-01Batch: BXK1129 Date Prepared: 11/22/2023 Date Analyzed: 11/22/2023 Flashpoint 0.00 200 >200 >200 80.0 1.00 Z-01 - >200 Reference - EPA 1010MOD QC Sample ID: BXK1129-SRM1 Batch: BXK1129 Date Prepared: 11/22/2023 Date Analyzed: 11/22/2023 Flashpoint 102 96.06 - 103.7 130 127 80.0 1.00 QC Sample ID: BXK1129-SRM2 Batch: BXK1129 Date Prepared: 11/22/2023 Date Analyzed: 11/22/2023 Flashpoint 101 96.06 - 103.7 128 127 80.0 1.00 CtF WO#: 23K1524 www.ChemtechFord.com Page 6 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte Blank - EPA 1311 QC Sample ID: BXK1009-BLK1 Batch: BXK1009 Date Prepared: 11/20/2023 Date Analyzed: 11/21/2023 Percent Pass ND 0.1 1.00 QC Sample ID: BXK1009-BLK2 Batch: BXK1009 Date Prepared: 11/20/2023 Date Analyzed: 11/21/2023 Percent Pass ND 0.1 1.00 CtF WO#: 23K1524 www.ChemtechFord.com Page 7 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte Blank - EPA 1664BMod QC Sample ID: BXK0903-BLK1 Batch: BXK0903 Date Prepared: 11/17/2023 Date Analyzed: 11/17/2023 Oil & Grease (HEM)ND 250 1.00 LCS - EPA 1664BMod QC Sample ID: BXK0903-BS1 Batch: BXK0903 Date Prepared: 11/17/2023 Date Analyzed: 11/17/2023 Oil & Grease (HEM)97.8 78 - 114 1960 2000 250 1.00 LCS Dup - EPA 1664BMod QC Sample ID: BXK0903-BSD1 Batch: BXK0903 Date Prepared: 11/17/2023 Date Analyzed: 11/17/2023 Oil & Grease (HEM)97.5 0.256 78 - 114 18 1950 2000 250 1.00 CtF WO#: 23K1524 www.ChemtechFord.com Page 8 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte Blank - EPA 6010D QC Sample ID: BXK0882-BLK1 Batch: BXK0882 Date Prepared: 11/18/2023 Date Analyzed: 11/21/2023 Arsenic, Total ND 5.00 1.00 Barium, Total ND 0.500 1.00 Cadmium, Total ND 0.500 1.00 Chromium, Total 0.130 0.500 1.00 J - Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag). Lead, Total ND 5.00 1.00 Selenium, Total ND 2.00 1.00 Silver, Total 0.220 0.500 1.00 J - Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag). Matrix Spike - EPA 6010D QC Sample ID: BXK0882-MS1 QC Source Sample: XXXXXXX-XXBatch: BXK0882 Date Prepared: 11/18/2023 Date Analyzed: 11/21/2023 Arsenic, Total 101 75 - 125 156 ND 155 7.74 2.00 Barium, Total 110 75 - 125 38.1 16.9 19.4 0.774 2.00 Cadmium, Total 90.8 75 - 125 141 ND 155 0.774 2.00 Chromium, Total 101 75 - 125 161 5.26 155 0.774 2.00 Lead, Total 98.3 75 - 125 152 ND 155 7.74 2.00 Selenium, Total 94.5 75 - 125 146 ND 155 3.10 2.00 Silver, Total 109 75 - 125 9.18 0.742 7.74 0.774 2.00 Matrix Spike Dup - EPA 6010D QC Sample ID: BXK0882-MSD1 QC Source Sample: XXXXXXX-XXBatch: BXK0882 Date Prepared: 11/18/2023 Date Analyzed: 11/21/2023 Arsenic, Total 103 38.9 75 - 125 20 232 ND 226 11.3 2.00 RPD-01 - RPD between MS and MSD is outside established limits. Data is acceptable based on MS and MSD being within acceptable recovery limits. Barium, Total 154 44.9 75 - 125 20 60.2 16.9 28.2 1.13 2.00 QM-060 - Due to non-homogeneity of the sample matrix, the sample duplicate did not provide reliable results for accuracy and precision. Sample results for the QC batch were accepted based on LCS/LCSD percent recoveries and RPD values. Cadmium, Total 90.1 36.6 75 - 125 25 204 ND 226 1.13 2.00 RPD-01 - RPD between MS and MSD is outside established limits. Data is acceptable based on MS and MSD being within acceptable recovery limits. Chromium, Total 102 37.6 75 - 125 20 236 5.26 226 1.13 2.00 RPD-01 - RPD between MS and MSD is outside established limits. Data is acceptable based on MS and MSD being within acceptable recovery limits. Lead, Total 97.7 36.7 75 - 125 20 221 ND 226 11.3 2.00 RPD-01 - RPD between MS and MSD is outside established limits. Data is acceptable based on MS and MSD being within acceptable recovery limits. Selenium, Total 94.0 36.8 75 - 125 20 212 ND 226 4.52 2.00 RPD-01 - RPD between MS and MSD is outside established limits. Data is acceptable based on MS and MSD being within acceptable recovery limits. Silver, Total 113 38.1 75 - 125 20 13.5 0.742 11.3 1.13 2.00 RPD-01 - RPD between MS and MSD is outside established limits. Data is acceptable based on MS and MSD being within acceptable recovery limits. Reference - EPA 6010D QC Sample ID: BXK0882-SRM1 Batch: BXK0882 Date Prepared: 11/18/2023 Date Analyzed: 11/21/2023 Arsenic, Total 83.6 59.2 - 109.82 136 163 9.41 1.00 Barium, Total 97.8 74.29 - 123.8 312 319 0.941 1.00 Cadmium, Total 88.8 68.077 - 113.85 115 130 0.941 1.00 Chromium, Total 91.0 66.6 - 123.53 139 153 0.941 1.00 CtF WO#: 23K1524 www.ChemtechFord.com Page 9 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte Reference - EPA 6010D (cont.) QC Sample ID: BXK0882-SRM1 Batch: BXK0882 Date Prepared: 11/18/2023 Date Analyzed: 11/21/2023 Lead, Total 98.9 71.36 - 122.27 217 220 9.41 1.00 Selenium, Total 83.2 67.308 - 132.05 130 156 3.77 1.00 Silver, Total 101 67.9 - 123.04 83.5 82.9 0.941 1.00 CtF WO#: 23K1524 www.ChemtechFord.com Page 10 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte Blank - EPA 7471A QC Sample ID: BXK0959-BLK1 Batch: BXK0959 Date Prepared: 11/20/2023 Date Analyzed: 11/20/2023 Mercury, Total 0.003 0.030 1.00 J - Detected but below the Reporting Limit; therefore, result is an estimated concentration (CLP J-Flag). Matrix Spike - EPA 7471A QC Sample ID: BXK0959-MS1 QC Source Sample: XXXXXXX-XXBatch: BXK0959 Date Prepared: 11/20/2023 Date Analyzed: 11/20/2023 Mercury, Total 100 70 - 130 0.642 0.059 0.582 0.021 1.00 QC Sample ID: BXK0959-MS2 QC Source Sample: XXXXXXX-XXBatch: BXK0959 Date Prepared: 11/20/2023 Date Analyzed: 11/20/2023 Mercury, Total 121 70 - 130 0.669 0.072 0.493 0.018 1.00 Matrix Spike Dup - EPA 7471A QC Sample ID: BXK0959-MSD1 QC Source Sample: XXXXXXX-XXBatch: BXK0959 Date Prepared: 11/20/2023 Date Analyzed: 11/20/2023 Mercury, Total 97.6 11.8 70 - 130 20 0.723 0.059 0.680 0.024 1.00 QC Sample ID: BXK0959-MSD2 QC Source Sample: XXXXXXX-XXBatch: BXK0959 Date Prepared: 11/20/2023 Date Analyzed: 11/20/2023 Mercury, Total 99.8 10.9 70 - 130 20 0.746 0.072 0.675 0.024 1.00 Reference - EPA 7471A QC Sample ID: BXK0959-SRM1 Batch: BXK0959 Date Prepared: 11/20/2023 Date Analyzed: 11/20/2023 Mercury, Total 102 62.176 - 144.91 9.96 9.81 0.610 10.00 CtF WO#: 23K1524 www.ChemtechFord.com Page 11 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte Blank - EPA 8260D QC Sample ID: BXK1337-BLK1 Batch: BXK1337 Date Prepared: 11/29/2023 Date Analyzed: 11/29/2023 1,1,1-Trichloroethane ND 0.001 1.00 1,1,2-Trichloroethane ND 0.001 1.00 1,1,2-Trichlorotrifluoroethane ND 0.001 1.00 1,1-Dichloroethene ND 0.001 1.00 1,2-Dichlorobenzene ND 0.001 1.00 1,2-Dichloroethane ND 0.001 1.00 1,4-Dichlorobenzene ND 0.001 1.00 2-Nitropropane ND 0.01 1.00 Acetone ND 0.01 1.00 Benzene ND 0.0004 1.00 Carbon Disulfide ND 0.002 1.00 Carbon Tetrachloride ND 0.001 1.00 Chlorobenzene ND 0.001 1.00 Chloroform ND 0.001 1.00 Cyclohexanone ND 0.01 1.00 Ethyl Acetate ND 0.002 1.00 Ethyl Ether ND 0.001 1.00 Ethylbenzene ND 0.001 1.00 Hexachlorobutadiene ND 0.001 1.00 Isobutanol ND 0.02 1.00 Methyl Ethyl Ketone ND 0.002 1.00 Methyl Isobutyl Ketone ND 0.005 1.00 Methylene Chloride ND 0.002 1.00 n-Butyl Alcohol ND 0.05 1.00 Tetrachloroethene ND 0.001 1.00 Toluene ND 0.001 1.00 Trichloroethene ND 0.001 1.00 Trichlorofluoromethane ND 0.001 1.00 Vinyl Chloride ND 0.0004 1.00 Xylenes, total ND 0.001 1.00 LCS - EPA 8260D QC Sample ID: BXK1337-BS1 Batch: BXK1337 Date Prepared: 11/29/2023 Date Analyzed: 11/29/2023 1,1,1-Trichloroethane 84.7 70 - 130 0.008 0.0100 0.001 1.00 1,1,2-Trichloroethane 90.2 70 - 130 0.009 0.0100 0.001 1.00 1,1,2-Trichlorotrifluoroethane 77.9 70 - 130 0.008 0.0100 0.001 1.00 1,1-Dichloroethene 82.9 70 - 130 0.008 0.0100 0.001 1.00 1,2-Dichlorobenzene 93.3 70 - 130 0.009 0.0100 0.001 1.00 1,2-Dichloroethane 94.9 70 - 130 0.009 0.0100 0.001 1.00 1,4-Dichlorobenzene 91.9 70 - 130 0.009 0.0100 0.001 1.00 2-Nitropropane 48.5 70 - 130 0.01 0.0300 0.01 1.00 J-LOW-L - Estimated low due to low recovery of LCS Acetone 103 70 - 130 0.1 0.100 0.01 1.00 Benzene 88.8 70 - 130 0.009 0.0100 0.0004 1.00 Carbon Disulfide 93.0 70 - 130 0.009 0.0100 0.002 1.00 Carbon Tetrachloride 73.3 70 - 130 0.007 0.0100 0.001 1.00 Chlorobenzene 85.9 70 - 130 0.009 0.0100 0.001 1.00 Chloroform 98.1 70 - 130 0.01 0.0100 0.001 1.00 Cyclohexanone 22.5 70 - 130 0.02 0.100 0.01 1.00 J-LOW-L - Estimated low due to low recovery of LCS CtF WO#: 23K1524 www.ChemtechFord.com Page 12 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte LCS - EPA 8260D (cont.) QC Sample ID: BXK1337-BS1 Batch: BXK1337 Date Prepared: 11/29/2023 Date Analyzed: 11/29/2023 Ethyl Acetate 114 70 - 130 0.02 0.0200 0.002 1.00 Ethyl Ether 103 70 - 130 0.01 0.0100 0.001 1.00 Ethylbenzene 83.0 70 - 130 0.008 0.0100 0.001 1.00 Hexachlorobutadiene 72.7 70 - 130 0.007 0.0100 0.001 1.00 Isobutanol 86.9 70 - 130 0.2 0.200 0.02 1.00 Methyl Ethyl Ketone 132 70 - 130 0.01 0.0100 0.002 1.00 HB - Recovery for this parameter exceeded the upper acceptance limit. Associated sample(s) were all non-detect and therefore accepted and reported for this parameter. Methyl Isobutyl Ketone 99.2 70 - 130 0.01 0.0100 0.005 1.00 Methylene Chloride 96.7 70 - 130 0.01 0.0100 0.002 1.00 n-Butyl Alcohol 80.1 70 - 130 0.08 0.100 0.05 1.00 Tetrachloroethene 71.4 70 - 130 0.007 0.0100 0.001 1.00 Toluene 84.1 70 - 130 0.008 0.0100 0.001 1.00 Trichloroethene 78.6 70 - 130 0.008 0.0100 0.001 1.00 Trichlorofluoromethane 92.6 70 - 130 0.009 0.0100 0.001 1.00 Vinyl Chloride 96.3 70 - 130 0.01 0.0100 0.0004 1.00 Xylenes, total 84.1 70 - 130 0.03 0.0300 0.001 1.00 Matrix Spike - EPA 8260D QC Sample ID: BXK1337-MS1 QC Source Sample: 23K1524-01Batch: BXK1337 Date Prepared: 11/29/2023 Date Analyzed: 11/29/2023 1,1,1-Trichloroethane 85.0 70 - 130 3 ND 3.22 0.32 1.00 1,1,2-Trichloroethane 435 70 - 130 14 ND 3.22 0.32 1.00 QM-4X - The spike recovery was outside of QC acceptance limits for the MS and/or MSD due to analyte concentration at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. 1,1,2-Trichlorotrifluoroethane 68.0 70 - 130 2 ND 3.22 0.32 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. 1,1-Dichloroethene 83.1 70 - 130 3 ND 3.22 0.32 1.00 1,2-Dichlorobenzene 105 70 - 130 3 ND 3.22 0.32 1.00 1,2-Dichloroethane 96.8 70 - 130 3 ND 3.22 0.32 1.00 1,4-Dichlorobenzene 102 70 - 130 3 ND 3.22 0.32 1.00 2-Nitropropane 49.4 70 - 130 5 ND 9.66 3.22 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. Acetone 103 70 - 130 33 ND 32.2 3.22 1.00 Benzene 86.4 70 - 130 3 ND 3.22 0.13 1.00 Carbon Disulfide 86.7 70 - 130 3 ND 3.22 0.64 1.00 Carbon Tetrachloride 71.2 70 - 130 2 ND 3.22 0.32 1.00 Chlorobenzene 84.5 70 - 130 3 ND 3.22 0.32 1.00 Chloroform 99.8 70 - 130 3 ND 3.22 0.32 1.00 Cyclohexanone 165 70 - 130 53 ND 32.2 3.22 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. Ethyl Acetate 122 70 - 130 8 ND 6.44 0.64 1.00 Ethyl Ether 96.0 70 - 130 3 ND 3.22 0.32 1.00 Ethylbenzene 83.5 70 - 130 7 4 3.22 0.32 1.00 Hexachlorobutadiene 54.7 70 - 130 2 ND 3.22 0.32 1.00 RPD-MSOut - The RPD between MS and MSD is outside established control limits. CtF WO#: 23K1524 www.ChemtechFord.com Page 13 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte Matrix Spike - EPA 8260D (cont.) QC Sample ID: BXK1337-MS1 QC Source Sample: 23K1524-01Batch: BXK1337 Date Prepared: 11/29/2023 Date Analyzed: 11/29/2023 Isobutanol 67.4 70 - 130 43 ND 64.4 6.44 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. Methyl Ethyl Ketone 112 70 - 130 4 ND 3.22 0.64 1.00 Methyl Isobutyl Ketone 88.6 70 - 130 3 ND 3.22 1.61 1.00 Methylene Chloride 103 70 - 130 3 ND 3.22 0.64 1.00 n-Butyl Alcohol 51.9 70 - 130 17 ND 32.2 16.1 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. Tetrachloroethene 83.5 70 - 130 3 ND 3.22 0.32 1.00 Toluene 83.7 70 - 130 3 0.7 3.22 0.32 1.00 Trichloroethene 76.5 70 - 130 2 ND 3.22 0.32 1.00 Trichlorofluoromethane 96.0 70 - 130 3 ND 3.22 0.32 1.00 Vinyl Chloride 94.9 70 - 130 3 ND 3.22 0.13 1.00 Xylenes, total 92.0 70 - 130 50 41 9.66 0.32 1.00 QM-4X - The spike recovery was outside of QC acceptance limits for the MS and/or MSD due to analyte concentration at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. Matrix Spike Dup - EPA 8260D QC Sample ID: BXK1337-MSD1 QC Source Sample: 23K1524-01Batch: BXK1337 Date Prepared: 11/29/2023 Date Analyzed: 11/29/2023 1,1,1-Trichloroethane 82.8 2.62 70 - 130 20 3 ND 3.22 0.32 1.00 1,1,2-Trichloroethane 436 0.0919 70 - 130 20 14 ND 3.22 0.32 1.00 QM-4X - The spike recovery was outside of QC acceptance limits for the MS and/or MSD due to analyte concentration at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. 1,1,2-Trichlorotrifluoroethane 67.2 1.18 70 - 130 20 2 ND 3.22 0.32 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. 1,1-Dichloroethene 78.6 5.57 70 - 130 20 3 ND 3.22 0.32 1.00 1,2-Dichlorobenzene 91.4 14.0 70 - 130 20 3 ND 3.22 0.32 1.00 1,2-Dichloroethane 95.1 1.77 70 - 130 20 3 ND 3.22 0.32 1.00 1,4-Dichlorobenzene 90.3 12.1 70 - 130 20 3 ND 3.22 0.32 1.00 2-Nitropropane 43.4 13.0 70 - 130 20 4 ND 9.66 3.22 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. Acetone 102 0.137 70 - 130 20 33 ND 32.2 3.22 1.00 Benzene 83.7 3.17 70 - 130 20 3 ND 3.22 0.13 1.00 Carbon Disulfide 80.5 7.42 70 - 130 20 3 ND 3.22 0.64 1.00 Carbon Tetrachloride 69.0 3.14 70 - 130 20 2 ND 3.22 0.32 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. Chlorobenzene 81.2 3.98 70 - 130 20 3 ND 3.22 0.32 1.00 Chloroform 96.2 3.67 70 - 130 20 3 ND 3.22 0.32 1.00 Cyclohexanone 170 3.48 70 - 130 20 55 ND 32.2 3.22 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. CtF WO#: 23K1524 www.ChemtechFord.com Page 14 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte Matrix Spike Dup - EPA 8260D (cont.) QC Sample ID: BXK1337-MSD1 QC Source Sample: 23K1524-01Batch: BXK1337 Date Prepared: 11/29/2023 Date Analyzed: 11/29/2023 Ethyl Acetate 117 4.64 70 - 130 20 8 ND 6.44 0.64 1.00 Ethyl Ether 98.0 2.06 70 - 130 20 3 ND 3.22 0.32 1.00 Ethylbenzene 75.9 3.53 70 - 130 20 7 4 3.22 0.32 1.00 Hexachlorobutadiene 43.9 21.9 70 - 130 20 1 ND 3.22 0.32 1.00 RPD-MSOut - The RPD between MS and MSD is outside established control limits. Isobutanol 69.7 3.21 70 - 130 20 45 ND 64.4 6.44 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. Methyl Ethyl Ketone 121 7.48 70 - 130 20 4 ND 3.22 0.64 1.00 Methyl Isobutyl Ketone 96.2 8.23 70 - 130 20 3 ND 3.22 1.61 1.00 Methylene Chloride 97.0 5.61 70 - 130 20 3 ND 3.22 0.64 1.00 n-Butyl Alcohol 58.4 11.8 70 - 130 20 19 ND 32.2 16.1 1.00 QM-RPD - The recovery was outside acceptance limits for the MS and/or MSD. The RPD between the MS and MSD was acceptable and indicates the recovery is due to matrix interference. The batch was accepted based on the acceptable recovery of the LCS and the RPD. Tetrachloroethene 86.0 2.95 70 - 130 20 3 ND 3.22 0.32 1.00 Toluene 81.0 2.62 70 - 130 20 3 0.7 3.22 0.32 1.00 Trichloroethene 75.8 0.919 70 - 130 20 2 ND 3.22 0.32 1.00 Trichlorofluoromethane 89.9 6.56 70 - 130 20 3 ND 3.22 0.32 1.00 Vinyl Chloride 89.4 5.97 70 - 130 20 3 ND 3.22 0.13 1.00 Xylenes, total 61.6 6.09 70 - 130 20 47 41 9.66 0.32 1.00 QM-4X - The spike recovery was outside of QC acceptance limits for the MS and/or MSD due to analyte concentration at 4 times or greater the spike concentration. The QC batch was accepted based on LCS and/or LCSD recoveries within the acceptance limits. CtF WO#: 23K1524 www.ChemtechFord.com Page 15 of 16 QC Report for Work Order (WO) - 23K1524 % Rec RPD RPD Max MRL DFResultSpk ValueLimitsSource ConcAnalyte Duplicate - EPA 9040C/9045D QC Sample ID: BXK0924-DUP1 QC Source Sample: XXXXXXX-XXBatch: BXK0924 Date Prepared: 11/17/2023 Date Analyzed: 11/17/2023 pH 0.483 3 8.3 8.3 0.1 1.00 QC Sample ID: BXK0924-DUP2 QC Source Sample: XXXXXXX-XXBatch: BXK0924 Date Prepared: 11/17/2023 Date Analyzed: 11/17/2023 pH 2.50 3 8.3 8.5 0.1 1.00 CtF WO#: 23K1524 www.ChemtechFord.com Page 16 of 16 APPENDIX WASTE MANIFESTS APPENDIX LABORATORY ANALYTICAL REPORTS ANALYTICAL REPORT September 26, 2024 WSP (Formely Wood E&I)-UT Sample Delivery Group:L1777354 Samples Received:09/13/2024 Project Number:US-EI-2381400504 Description:Draper Dig & Haul Report To:Rachel Ridge 10876 South River Front Parkway South Jordan, UT 84095 Entire Report Reviewed By: September 26, 2024 [Preliminary Report] Daphne Richards Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 1 of 14 September 27, 2024 Jordan N Zito Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 1 of 14 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 PIT-SW-SLOPE-C L1777354-01 5 PIT-SE-SLOPE-C L1777354-02 6 PIT-SW-SLOPE L1777354-03 7 PIT-SE-SLOPE L1777354-04 8 Qc: Quality Control Summary 9 Total Solids by Method 2540 G-2011 9 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 10 Semi-Volatile Organic Compounds (GC) by Method 8015 11 Gl: Glossary of Terms 12 Al: Accreditations & Locations 13 Sc: Sample Chain of Custody 14 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 2 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 2 of 14 SAMPLE SUMMARY Collected by Collected date/time Received date/time PIT-SW-SLOPE-C L1777354-01 Solid Rachel Ridge 09/12/24 13:50 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2363820 1 09/12/24 13:50 09/17/24 15:38 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time PIT-SE-SLOPE-C L1777354-02 Solid Rachel Ridge 09/12/24 13:50 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2363820 1 09/12/24 13:50 09/17/24 15:58 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time PIT-SW-SLOPE L1777354-03 Solid Rachel Ridge 09/12/24 13:50 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2362512 1 09/17/24 11:57 09/17/24 12:17 CMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2369195 1 09/25/24 08:00 09/25/24 21:40 KKS Mt. Juliet, TN Collected by Collected date/time Received date/time PIT-SE-SLOPE L1777354-04 Solid Rachel Ridge 09/12/24 13:50 09/13/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2362512 1 09/17/24 11:57 09/17/24 12:17 CMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2369195 1 09/25/24 08:00 09/25/24 21:53 KKS 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 3 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 3 of 14 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Daphne Richards Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 4 of 14 Jordan N Zito Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 4 of 14 SAMPLE RESULTS - 01 L1777354 PIT-SW-SLOPE-C Collected date/time: 09/12/24 13:50 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.183 0.500 1 09/17/2024 15:38 WG2363820 Benzene U 0.000375 0.00100 1 09/17/2024 15:38 WG2363820 1,2-Dichloroethane U 0.000450 0.00100 1 09/17/2024 15:38 WG2363820 1,2-Dibromoethane U 0.000250 0.00100 1 09/17/2024 15:38 WG2363820 Ethylbenzene U 0.000300 0.00100 1 09/17/2024 15:38 WG2363820 Methyl tert-butyl ether U 0.000350 0.00100 1 09/17/2024 15:38 WG2363820 Naphthalene U 0.00498 0.00500 1 09/17/2024 15:38 WG2363820 Toluene U 0.00123 0.00500 1 09/17/2024 15:38 WG2363820 Xylenes, Total U 0.000500 0.00300 1 09/17/2024 15:38 WG2363820 (S) Toluene-d8 103 75.0-131 09/17/2024 15:38 WG2363820 (S) 4-Bromofluorobenzene 91.4 67.0-138 09/17/2024 15:38 WG2363820 (S) 1,2-Dichloroethane-d4 130 70.0-130 09/17/2024 15:38 WG2363820 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 5 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 5 of 14 SAMPLE RESULTS - 02 L1777354 PIT-SE-SLOPE-C Collected date/time: 09/12/24 13:50 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.183 0.500 1 09/17/2024 15:58 WG2363820 Benzene 0.000600 J 0.000375 0.00100 1 09/17/2024 15:58 WG2363820 1,2-Dichloroethane U 0.000450 0.00100 1 09/17/2024 15:58 WG2363820 1,2-Dibromoethane U 0.000250 0.00100 1 09/17/2024 15:58 WG2363820 Ethylbenzene U 0.000300 0.00100 1 09/17/2024 15:58 WG2363820 Methyl tert-butyl ether U 0.000350 0.00100 1 09/17/2024 15:58 WG2363820 Naphthalene U 0.00498 0.00500 1 09/17/2024 15:58 WG2363820 Toluene U 0.00123 0.00500 1 09/17/2024 15:58 WG2363820 Xylenes, Total U 0.000500 0.00300 1 09/17/2024 15:58 WG2363820 (S) Toluene-d8 102 75.0-131 09/17/2024 15:58 WG2363820 (S) 4-Bromofluorobenzene 88.9 67.0-138 09/17/2024 15:58 WG2363820 (S) 1,2-Dichloroethane-d4 126 70.0-130 09/17/2024 15:58 WG2363820 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 6 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 6 of 14 SAMPLE RESULTS - 03 L1777354 PIT-SW-SLOPE Collected date/time: 09/12/24 13:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 86.9 1 09/17/2024 12:17 WG2362512 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.60 1 09/25/2024 21:40 WG2369195 (S) o-Terphenyl 48.2 18.0-148 09/25/2024 21:40 WG2369195 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 7 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 7 of 14 SAMPLE RESULTS - 04 L1777354 PIT-SE-SLOPE Collected date/time: 09/12/24 13:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.5 1 09/17/2024 12:17 WG2362512 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.33 1 09/25/2024 21:53 WG2369195 (S) o-Terphenyl 55.5 18.0-148 09/25/2024 21:53 WG2369195 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 8 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 8 of 14 QUALITY CONTROL SUMMARYWG2362512 Total Solids by Method 2540 G-2011 L1777354-03,04 Method Blank (MB) (MB) R4121057-1 09/17/24 12:17 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1777353-06 Original Sample (OS) • Duplicate (DUP) (OS) L1777353-06 09/17/24 12:17 • (DUP) R4121057-3 09/17/24 12:17 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 82.3 80.6 1 2.14 10 Laboratory Control Sample (LCS) (LCS) R4121057-2 09/17/24 12:17 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 9 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 9 of 14 QUALITY CONTROL SUMMARYWG2363820 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 L1777354-01,02 Method Blank (MB) (MB) R4121266-4 09/17/24 10:17 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 (S) Toluene-d8 110 75.0-131 (S) 4-Bromofluorobenzene 88.7 67.0-138 (S) 1,2-Dichloroethane-d4 107 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4121266-1 09/17/24 08:37 • (LCSD) R4121266-2 09/17/24 08:57 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 0.0251 0.0272 100 109 70.0-123 8.03 20 1,2-Dichloroethane 0.0250 0.0276 0.0301 110 120 65.0-131 8.67 20 1,2-Dibromoethane 0.0250 0.0288 0.0299 115 120 74.0-128 3.75 20 Ethylbenzene 0.0250 0.0235 0.0254 94.0 102 74.0-126 7.77 20 Methyl tert-butyl ether 0.0250 0.0253 0.0264 101 106 66.0-132 4.26 20 Naphthalene 0.0250 0.0217 0.0218 86.8 87.2 59.0-130 0.460 20 Toluene 0.0250 0.0235 0.0249 94.0 99.6 75.0-121 5.79 20 Xylenes, Total 0.0750 0.0715 0.0774 95.3 103 72.0-127 7.92 20 (S) Toluene-d8 102 101 75.0-131 (S) 4-Bromofluorobenzene 85.1 87.9 67.0-138 (S) 1,2-Dichloroethane-d4 119 117 70.0-130 Laboratory Control Sample (LCS) (LCS) R4121266-3 09/17/24 09:37 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/MS) Low Fraction 5.00 5.13 103 52.0-154 (S) Toluene-d8 102 75.0-131 (S) 4-Bromofluorobenzene 94.8 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 10 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 10 of 14 QUALITY CONTROL SUMMARYWG2369195 Semi-Volatile Organic Compounds (GC) by Method 8015 L1777354-03,04 Method Blank (MB) (MB) R4124568-1 09/25/24 20:06 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 61.6 18.0-148 Laboratory Control Sample (LCS) (LCS) R4124568-2 09/25/24 20:19 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/FID) High Fraction 50.0 36.5 73.0 50.0-150 (S) o-Terphenyl 63.8 18.0-148 L1778523-08 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1778523-08 09/25/24 21:13 • (MS) R4124568-3 09/25/24 21:27 • (MSD) R4124568-4 09/25/24 21:40 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg %%%%% TPH (GC/FID) High Fraction 57.5 59.2 114 112 94.8 90.9 1 50.0-150 1.89 20 (S) o-Terphenyl 64.9 48.6 18.0-148 Sample Narrative: OS: Surrogate failure due to matrix interference 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 11 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 11 of 14 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (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. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 12 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 12 of 14 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/26/24 17:21 13 of 14 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1777354 09/27/24 08:14 13 of 14 ANALYTICAL REPORT October 03, 2024 WSP (Formely Wood E&I)-UT Sample Delivery Group:L1781848 Samples Received:09/26/2024 Project Number:US-EI-2381400504 Description:Draper Dig & Haul Report To:Rachel Ridge 10876 South River Front Parkway South Jordan, UT 84095 Entire Report Reviewed By: October 03, 2024 [Preliminary Report] Daphne Richards Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 1 of 33 October 03, 2024 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 1 of 33 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 PIT-E-BOTTOM L1781848-01 6 PIT-W-BOTTOM L1781848-02 7 PIT-NE-SLOPE L1781848-03 8 PIT-NW-SLOPE L1781848-04 9 PILE1-BOTTOM L1781848-05 10 PILE2-BOTTOM L1781848-06 11 DUP-09252024 L1781848-07 12 PIT-E-BOTTOM-C L1781848-08 13 PIT-W-BOTTOM-C L1781848-09 14 PIT-NE-SLOPE-C L1781848-10 15 PIT-NW-SLOPE-C L1781848-11 16 PILE1-BOTTOM-C L1781848-12 17 PILE2-BOTTOM-C L1781848-13 18 DUP-09252024-C L1781848-14 19 TRIP BLANK L1781848-15 20 Qc: Quality Control Summary 21 Total Solids by Method 2540 G-2011 21 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 22 Semi-Volatile Organic Compounds (GC) by Method 8015 25 TPH by Method NJDEP EPH 26 Gl: Glossary of Terms 28 Al: Accreditations & Locations 29 Sc: Sample Chain of Custody 30 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 2 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 2 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time PIT-E-BOTTOM L1781848-01 Solid Rachel Ridge 09/25/24 10:25 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2371010 1 09/27/24 09:37 09/27/24 09:45 KDW Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2371625 1 09/28/24 02:52 09/28/24 09:34 KKS Mt. Juliet, TN Collected by Collected date/time Received date/time PIT-W-BOTTOM L1781848-02 Solid Rachel Ridge 09/25/24 10:45 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2371010 1 09/27/24 09:37 09/27/24 09:45 KDW Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2371625 1 09/28/24 02:52 09/28/24 09:47 KKS Mt. Juliet, TN TPH by Method NJDEP EPH WG2372429 1 09/27/24 08:54 09/30/24 15:45 DMG Mt. Juliet, TN TPH by Method NJDEP EPH WG2372429 2 09/27/24 08:54 10/01/24 10:41 DMG Mt. Juliet, TN Collected by Collected date/time Received date/time PIT-NE-SLOPE L1781848-03 Solid Rachel Ridge 09/25/24 11:15 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2371010 1 09/27/24 09:37 09/27/24 09:45 KDW Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2371625 1 09/28/24 02:52 09/28/24 12:23 KKS Mt. Juliet, TN Collected by Collected date/time Received date/time PIT-NW-SLOPE L1781848-04 Solid Rachel Ridge 09/25/24 11:35 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2371010 1 09/27/24 09:37 09/27/24 09:45 KDW Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2371625 1 09/28/24 02:52 09/28/24 12:10 KKS Mt. Juliet, TN Collected by Collected date/time Received date/time PILE1-BOTTOM L1781848-05 Solid Rachel Ridge 09/25/24 12:05 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2371010 1 09/27/24 09:37 09/27/24 09:45 KDW Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2371625 20 09/28/24 02:52 09/28/24 15:33 KKS Mt. Juliet, TN Collected by Collected date/time Received date/time PILE2-BOTTOM L1781848-06 Solid Rachel Ridge 09/25/24 12:25 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2371010 1 09/27/24 09:37 09/27/24 09:45 KDW Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2371625 1 09/28/24 02:52 09/28/24 10:00 KKS Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-09252024 L1781848-07 Solid Rachel Ridge 09/25/24 13:25 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2371010 1 09/27/24 09:37 09/27/24 09:45 KDW Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2371625 1 09/28/24 02:52 09/28/24 10:13 KKS 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 3 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 3 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time PIT-E-BOTTOM-C L1781848-08 Solid Rachel Ridge 09/25/24 10:10 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2371167 50 09/25/24 10:10 09/29/24 18:01 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time PIT-W-BOTTOM-C L1781848-09 Solid Rachel Ridge 09/25/24 10:35 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2371167 50 09/25/24 10:35 09/29/24 18:21 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time PIT-NE-SLOPE-C L1781848-10 Solid Rachel Ridge 09/25/24 11:00 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2370779 1 09/25/24 11:00 09/30/24 08:51 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time PIT-NW-SLOPE-C L1781848-11 Solid Rachel Ridge 09/25/24 11:25 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2370779 1 09/25/24 11:25 09/30/24 09:11 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time PILE1-BOTTOM-C L1781848-12 Solid Rachel Ridge 09/25/24 11:45 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2370779 1 09/25/24 11:45 09/30/24 09:31 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time PILE2-BOTTOM-C L1781848-13 Solid Rachel Ridge 09/25/24 12:15 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2370779 1 09/25/24 12:15 09/30/24 09:51 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-09252024-C L1781848-14 Solid Rachel Ridge 09/25/24 13:20 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2370779 1 09/25/24 13:20 09/30/24 10:11 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time TRIP BLANK L1781848-15 GW Rachel Ridge 09/25/24 00:00 09/26/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2372868 1 09/30/24 21:52 09/30/24 21:52 DYW 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 4 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 4 of 33 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Daphne Richards Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 5 of 33 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 5 of 33 SAMPLE RESULTS - 01 L1781848 PIT-E-BOTTOM Collected date/time: 09/25/24 10:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 80.7 1 09/27/2024 09:45 WG2371010 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction 65.3 4.95 1 09/28/2024 09:34 WG2371625 (S) o-Terphenyl 19.1 18.0-148 09/28/2024 09:34 WG2371625 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 6 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 6 of 33 SAMPLE RESULTS - 02 L1781848 PIT-W-BOTTOM Collected date/time: 09/25/24 10:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 78.6 1 09/27/2024 09:45 WG2371010 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction 258 5.09 1 09/28/2024 09:47 WG2371625 (S) o-Terphenyl 31.2 18.0-148 09/28/2024 09:47 WG2371625 TPH by Method NJDEP EPH Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time C9-C12 Aliphatics 71.0 25.4 1 09/30/2024 15:45 WG2372429 C12-C16 Aliphatics 192 50.9 2 10/01/2024 10:41 WG2372429 C16-C21 Aliphatics 171 25.4 1 09/30/2024 15:45 WG2372429 C21-C40 Aliphatics ND 25.4 1 09/30/2024 15:45 WG2372429 C10 - C12 Aromatics 27.2 25.4 1 09/30/2024 15:45 WG2372429 C12-C16 Aromatics 78.9 25.4 1 09/30/2024 15:45 WG2372429 C16-C21 Aromatics 108 25.4 1 09/30/2024 15:45 WG2372429 C21-C36 Aromatics ND 25.4 1 09/30/2024 15:45 WG2372429 Total EPH 682 25.4 2 10/01/2024 10:41 WG2372429 (S) 1-Chloro-octadecane 69.4 40.0-140 10/01/2024 10:41 WG2372429 (S) 1-Chloro-octadecane 65.0 40.0-140 09/30/2024 15:45 WG2372429 (S) 2-Fluorobiphenyl 91.4 40.0-140 09/30/2024 15:45 WG2372429 (S) 2-Bromonaphthalene 84.8 40.0-140 09/30/2024 15:45 WG2372429 (S) o-Terphenyl 72.6 40.0-140 09/30/2024 15:45 WG2372429 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 7 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 7 of 33 SAMPLE RESULTS - 03 L1781848 PIT-NE-SLOPE Collected date/time: 09/25/24 11:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 91.1 1 09/27/2024 09:45 WG2371010 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.39 1 09/28/2024 12:23 WG2371625 (S) o-Terphenyl 41.2 18.0-148 09/28/2024 12:23 WG2371625 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 8 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 8 of 33 SAMPLE RESULTS - 04 L1781848 PIT-NW-SLOPE Collected date/time: 09/25/24 11:35 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.8 1 09/27/2024 09:45 WG2371010 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.41 1 09/28/2024 12:10 WG2371625 (S) o-Terphenyl 42.0 18.0-148 09/28/2024 12:10 WG2371625 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 9 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 9 of 33 SAMPLE RESULTS - 05 L1781848 PILE1-BOTTOM Collected date/time: 09/25/24 12:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 98.6 1 09/27/2024 09:45 WG2371010 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction 532 81.2 20 09/28/2024 15:33 WG2371625 (S) o-Terphenyl 0.000 J7 18.0-148 09/28/2024 15:33 WG2371625 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 10 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 10 of 33 SAMPLE RESULTS - 06 L1781848 PILE2-BOTTOM Collected date/time: 09/25/24 12:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.0 1 09/27/2024 09:45 WG2371010 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.12 1 09/28/2024 10:00 WG2371625 (S) o-Terphenyl 41.9 18.0-148 09/28/2024 10:00 WG2371625 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 11 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 11 of 33 SAMPLE RESULTS - 07 L1781848 DUP-09252024 Collected date/time: 09/25/24 13:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.9 1 09/27/2024 09:45 WG2371010 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.13 1 09/28/2024 10:13 WG2371625 (S) o-Terphenyl 52.7 18.0-148 09/28/2024 10:13 WG2371625 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 12 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 12 of 33 SAMPLE RESULTS - 08 L1781848 PIT-E-BOTTOM-C Collected date/time: 09/25/24 10:10 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 9.15 25.0 50 09/29/2024 18:01 WG2371167 Benzene U 0.0188 0.0500 50 09/29/2024 18:01 WG2371167 1,2-Dichloroethane U 0.0225 0.0500 50 09/29/2024 18:01 WG2371167 1,2-Dibromoethane U 0.0125 0.0500 50 09/29/2024 18:01 WG2371167 Ethylbenzene 0.0202 J 0.0150 0.0500 50 09/29/2024 18:01 WG2371167 Methyl tert-butyl ether U 0.0175 0.0500 50 09/29/2024 18:01 WG2371167 Naphthalene U 0.249 0.250 50 09/29/2024 18:01 WG2371167 Toluene U 0.0615 0.250 50 09/29/2024 18:01 WG2371167 Xylenes, Total 0.337 0.0250 0.150 50 09/29/2024 18:01 WG2371167 (S) Toluene-d8 101 75.0-131 09/29/2024 18:01 WG2371167 (S) 4-Bromofluorobenzene 88.6 67.0-138 09/29/2024 18:01 WG2371167 (S) 1,2-Dichloroethane-d4 89.9 70.0-130 09/29/2024 18:01 WG2371167 Sample Narrative: L1781848-08 WG2371167: Non-target compounds too high to run at a lower dilution. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 13 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 13 of 33 SAMPLE RESULTS - 09 L1781848 PIT-W-BOTTOM-C Collected date/time: 09/25/24 10:35 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction 26.8 9.15 25.0 50 09/29/2024 18:21 WG2371167 Benzene U 0.0188 0.0500 50 09/29/2024 18:21 WG2371167 1,2-Dichloroethane U 0.0225 0.0500 50 09/29/2024 18:21 WG2371167 1,2-Dibromoethane U 0.0125 0.0500 50 09/29/2024 18:21 WG2371167 Ethylbenzene 0.356 0.0150 0.0500 50 09/29/2024 18:21 WG2371167 Methyl tert-butyl ether U 0.0175 0.0500 50 09/29/2024 18:21 WG2371167 Naphthalene 1.49 0.249 0.250 50 09/29/2024 18:21 WG2371167 Toluene 0.171 J 0.0615 0.250 50 09/29/2024 18:21 WG2371167 Xylenes, Total 4.19 0.0250 0.150 50 09/29/2024 18:21 WG2371167 (S) Toluene-d8 93.6 75.0-131 09/29/2024 18:21 WG2371167 (S) 4-Bromofluorobenzene 94.0 67.0-138 09/29/2024 18:21 WG2371167 (S) 1,2-Dichloroethane-d4 90.3 70.0-130 09/29/2024 18:21 WG2371167 Sample Narrative: L1781848-09 WG2371167: Non-target compounds too high to run at a lower dilution. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 14 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 14 of 33 SAMPLE RESULTS - 10 L1781848 PIT-NE-SLOPE-C Collected date/time: 09/25/24 11:00 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.183 0.500 1 09/30/2024 08:51 WG2370779 Benzene U 0.000375 0.00100 1 09/30/2024 08:51 WG2370779 1,2-Dichloroethane U 0.000450 0.00100 1 09/30/2024 08:51 WG2370779 1,2-Dibromoethane U 0.000250 0.00100 1 09/30/2024 08:51 WG2370779 Ethylbenzene U 0.000300 0.00100 1 09/30/2024 08:51 WG2370779 Methyl tert-butyl ether U 0.000350 0.00100 1 09/30/2024 08:51 WG2370779 Naphthalene U 0.00498 0.00500 1 09/30/2024 08:51 WG2370779 Toluene U 0.00123 0.00500 1 09/30/2024 08:51 WG2370779 Xylenes, Total U 0.000500 0.00300 1 09/30/2024 08:51 WG2370779 (S) Toluene-d8 101 75.0-131 09/30/2024 08:51 WG2370779 (S) 4-Bromofluorobenzene 83.4 67.0-138 09/30/2024 08:51 WG2370779 (S) 1,2-Dichloroethane-d4 95.8 70.0-130 09/30/2024 08:51 WG2370779 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 15 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 15 of 33 SAMPLE RESULTS - 11 L1781848 PIT-NW-SLOPE-C Collected date/time: 09/25/24 11:25 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.183 0.500 1 09/30/2024 09:11 WG2370779 Benzene U 0.000375 0.00100 1 09/30/2024 09:11 WG2370779 1,2-Dichloroethane U 0.000450 0.00100 1 09/30/2024 09:11 WG2370779 1,2-Dibromoethane U 0.000250 0.00100 1 09/30/2024 09:11 WG2370779 Ethylbenzene U 0.000300 0.00100 1 09/30/2024 09:11 WG2370779 Methyl tert-butyl ether U 0.000350 0.00100 1 09/30/2024 09:11 WG2370779 Naphthalene U 0.00498 0.00500 1 09/30/2024 09:11 WG2370779 Toluene U 0.00123 0.00500 1 09/30/2024 09:11 WG2370779 Xylenes, Total U 0.000500 0.00300 1 09/30/2024 09:11 WG2370779 (S) Toluene-d8 97.4 75.0-131 09/30/2024 09:11 WG2370779 (S) 4-Bromofluorobenzene 82.8 67.0-138 09/30/2024 09:11 WG2370779 (S) 1,2-Dichloroethane-d4 103 70.0-130 09/30/2024 09:11 WG2370779 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 16 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 16 of 33 SAMPLE RESULTS - 12 L1781848 PILE1-BOTTOM-C Collected date/time: 09/25/24 11:45 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.183 0.500 1 09/30/2024 09:31 WG2370779 Benzene U 0.000375 0.00100 1 09/30/2024 09:31 WG2370779 1,2-Dichloroethane U 0.000450 0.00100 1 09/30/2024 09:31 WG2370779 1,2-Dibromoethane U 0.000250 0.00100 1 09/30/2024 09:31 WG2370779 Ethylbenzene U 0.000300 0.00100 1 09/30/2024 09:31 WG2370779 Methyl tert-butyl ether U 0.000350 0.00100 1 09/30/2024 09:31 WG2370779 Naphthalene U 0.00498 0.00500 1 09/30/2024 09:31 WG2370779 Toluene U 0.00123 0.00500 1 09/30/2024 09:31 WG2370779 Xylenes, Total U 0.000500 0.00300 1 09/30/2024 09:31 WG2370779 (S) Toluene-d8 98.3 75.0-131 09/30/2024 09:31 WG2370779 (S) 4-Bromofluorobenzene 85.0 67.0-138 09/30/2024 09:31 WG2370779 (S) 1,2-Dichloroethane-d4 103 70.0-130 09/30/2024 09:31 WG2370779 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 17 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 17 of 33 SAMPLE RESULTS - 13 L1781848 PILE2-BOTTOM-C Collected date/time: 09/25/24 12:15 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.183 0.500 1 09/30/2024 09:51 WG2370779 Benzene U 0.000375 0.00100 1 09/30/2024 09:51 WG2370779 1,2-Dichloroethane U 0.000450 0.00100 1 09/30/2024 09:51 WG2370779 1,2-Dibromoethane U 0.000250 0.00100 1 09/30/2024 09:51 WG2370779 Ethylbenzene U 0.000300 0.00100 1 09/30/2024 09:51 WG2370779 Methyl tert-butyl ether U 0.000350 0.00100 1 09/30/2024 09:51 WG2370779 Naphthalene U 0.00498 0.00500 1 09/30/2024 09:51 WG2370779 Toluene U 0.00123 0.00500 1 09/30/2024 09:51 WG2370779 Xylenes, Total U 0.000500 0.00300 1 09/30/2024 09:51 WG2370779 (S) Toluene-d8 95.0 75.0-131 09/30/2024 09:51 WG2370779 (S) 4-Bromofluorobenzene 82.4 67.0-138 09/30/2024 09:51 WG2370779 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/30/2024 09:51 WG2370779 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 18 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 18 of 33 SAMPLE RESULTS - 14 L1781848 DUP-09252024-C Collected date/time: 09/25/24 13:20 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.183 0.500 1 09/30/2024 10:11 WG2370779 Benzene U 0.000375 0.00100 1 09/30/2024 10:11 WG2370779 1,2-Dichloroethane U 0.000450 0.00100 1 09/30/2024 10:11 WG2370779 1,2-Dibromoethane U 0.000250 0.00100 1 09/30/2024 10:11 WG2370779 Ethylbenzene U 0.000300 0.00100 1 09/30/2024 10:11 WG2370779 Methyl tert-butyl ether U 0.000350 0.00100 1 09/30/2024 10:11 WG2370779 Naphthalene U 0.00498 0.00500 1 09/30/2024 10:11 WG2370779 Toluene U 0.00123 0.00500 1 09/30/2024 10:11 WG2370779 Xylenes, Total U 0.000500 0.00300 1 09/30/2024 10:11 WG2370779 (S) Toluene-d8 98.6 75.0-131 09/30/2024 10:11 WG2370779 (S) 4-Bromofluorobenzene 82.4 67.0-138 09/30/2024 10:11 WG2370779 (S) 1,2-Dichloroethane-d4 104 70.0-130 09/30/2024 10:11 WG2370779 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 19 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 19 of 33 SAMPLE RESULTS - 15 L1781848 TRIP BLANK Collected date/time: 09/25/24 00:00 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time TPH (GC/MS) Low Fraction ND 500 1 09/30/2024 21:52 WG2372868 Benzene ND 1.00 1 09/30/2024 21:52 WG2372868 Ethylbenzene ND 1.00 1 09/30/2024 21:52 WG2372868 Methyl tert-butyl ether ND 1.00 1 09/30/2024 21:52 WG2372868 Naphthalene ND 5.00 1 09/30/2024 21:52 WG2372868 Toluene ND 1.00 1 09/30/2024 21:52 WG2372868 Xylenes, Total ND 3.00 1 09/30/2024 21:52 WG2372868 (S) Toluene-d8 104 80.0-120 09/30/2024 21:52 WG2372868 (S) 4-Bromofluorobenzene 96.3 77.0-126 09/30/2024 21:52 WG2372868 (S) 1,2-Dichloroethane-d4 104 70.0-130 09/30/2024 21:52 WG2372868 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 20 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 20 of 33 QUALITY CONTROL SUMMARYWG2371010 Total Solids by Method 2540 G-2011 L1781848-01,02,03,04,05,06,07 Method Blank (MB) (MB) R4125646-1 09/27/24 09:45 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1780705-16 Original Sample (OS) • Duplicate (DUP) (OS) L1780705-16 09/27/24 09:45 • (DUP) R4125646-3 09/27/24 09:45 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 93.7 92.8 1 0.954 10 Laboratory Control Sample (LCS) (LCS) R4125646-2 09/27/24 09:45 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 21 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 21 of 33 QUALITY CONTROL SUMMARYWG2370779 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 L1781848-10,11,12,13,14 Method Blank (MB) (MB) R4126136-4 09/30/24 06:07 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 (S) Toluene-d8 100 75.0-131 (S) 4-Bromofluorobenzene 85.6 67.0-138 (S) 1,2-Dichloroethane-d4 89.6 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4126136-1 09/30/24 04:27 • (LCSD) R4126136-2 09/30/24 04:47 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 0.0248 0.0247 99.2 98.8 70.0-123 0.404 20 1,2-Dichloroethane 0.0250 0.0233 0.0237 93.2 94.8 65.0-131 1.70 20 1,2-Dibromoethane 0.0250 0.0232 0.0256 92.8 102 74.0-128 9.84 20 Ethylbenzene 0.0250 0.0245 0.0259 98.0 104 74.0-126 5.56 20 Methyl tert-butyl ether 0.0250 0.0254 0.0260 102 104 66.0-132 2.33 20 Naphthalene 0.0250 0.0296 0.0284 118 114 59.0-130 4.14 20 Toluene 0.0250 0.0235 0.0249 94.0 99.6 75.0-121 5.79 20 Xylenes, Total 0.0750 0.0756 0.0790 101 105 72.0-127 4.40 20 (S) Toluene-d8 90.0 94.9 75.0-131 (S) 4-Bromofluorobenzene 74.1 81.7 67.0-138 (S) 1,2-Dichloroethane-d4 95.1 97.4 70.0-130 Laboratory Control Sample (LCS) (LCS) R4126136-3 09/30/24 05:27 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/MS) Low Fraction 5.00 4.66 93.2 52.0-154 (S) Toluene-d8 91.3 75.0-131 (S) 4-Bromofluorobenzene 92.9 67.0-138 (S) 1,2-Dichloroethane-d4 95.9 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 22 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 22 of 33 QUALITY CONTROL SUMMARYWG2371167 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 L1781848-08,09 Method Blank (MB) (MB) R4126067-4 09/29/24 14:06 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH (GC/MS) Low Fraction U 4.58 12.5 Benzene U 0.00938 0.0250 1,2-Dichloroethane U 0.0113 0.0250 1,2-Dibromoethane U 0.00625 0.0250 Ethylbenzene U 0.00750 0.0250 Methyl tert-butyl ether U 0.00875 0.0250 Naphthalene U 0.125 0.125 Toluene U 0.0308 0.125 Xylenes, Total U 0.0125 0.0750 (S) Toluene-d8 96.9 75.0-131 (S) 4-Bromofluorobenzene 86.3 67.0-138 (S) 1,2-Dichloroethane-d4 85.3 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4126067-1 09/29/24 12:06 • (LCSD) R4126067-2 09/29/24 12:26 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 0.0265 0.0267 106 107 70.0-123 0.752 20 1,2-Dichloroethane 0.0250 0.0250 0.0253 100 101 65.0-131 1.19 20 1,2-Dibromoethane 0.0250 0.0244 0.0263 97.6 105 74.0-128 7.50 20 Ethylbenzene 0.0250 0.0252 0.0269 101 108 74.0-126 6.53 20 Methyl tert-butyl ether 0.0250 0.0272 0.0281 109 112 66.0-132 3.25 20 Naphthalene 0.0250 0.0269 0.0303 108 121 59.0-130 11.9 20 Toluene 0.0250 0.0242 0.0257 96.8 103 75.0-121 6.01 20 Xylenes, Total 0.0750 0.0770 0.0821 103 109 72.0-127 6.41 20 (S) Toluene-d8 89.4 93.8 75.0-131 (S) 4-Bromofluorobenzene 78.6 78.5 67.0-138 (S) 1,2-Dichloroethane-d4 101 103 70.0-130 Laboratory Control Sample (LCS) (LCS) R4126067-3 09/29/24 13:06 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/MS) Low Fraction 5.00 4.21 84.2 52.0-154 (S) Toluene-d8 92.8 75.0-131 (S) 4-Bromofluorobenzene 91.6 67.0-138 (S) 1,2-Dichloroethane-d4 94.6 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 23 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 23 of 33 QUALITY CONTROL SUMMARYWG2372868 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 L1781848-15 Method Blank (MB) (MB) R4126596-5 09/30/24 19:49 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l TPH (GC/MS) Low Fraction U 108 500 Benzene U 0.0941 1.00 Ethylbenzene U 0.137 1.00 Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 Toluene U 0.278 1.00 Xylenes, Total U 0.174 3.00 (S) Toluene-d8 105 80.0-120 (S) 4-Bromofluorobenzene 94.1 77.0-126 (S) 1,2-Dichloroethane-d4 105 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4126596-1 09/30/24 16:53 • (LCSD) R4126596-2 09/30/24 17:14 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Benzene 5.00 4.78 4.74 95.6 94.8 70.0-123 0.840 20 Ethylbenzene 5.00 4.81 4.79 96.2 95.8 79.0-123 0.417 20 Methyl tert-butyl ether 5.00 4.61 4.77 92.2 95.4 68.0-125 3.41 20 Naphthalene 5.00 3.20 3.70 64.0 74.0 54.0-135 14.5 20 Toluene 5.00 4.89 4.86 97.8 97.2 79.0-120 0.615 20 Xylenes, Total 15.0 14.0 14.1 93.3 94.0 79.0-123 0.712 20 (S) Toluene-d8 105 103 80.0-120 (S) 4-Bromofluorobenzene 96.6 95.2 77.0-126 (S) 1,2-Dichloroethane-d4 108 108 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 24 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 24 of 33 QUALITY CONTROL SUMMARYWG2371625 Semi-Volatile Organic Compounds (GC) by Method 8015 L1781848-01,02,03,04,05,06,07 Method Blank (MB) (MB) R4125776-1 09/28/24 09:08 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 68.2 18.0-148 Laboratory Control Sample (LCS) (LCS) R4125776-2 09/28/24 09:21 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/FID) High Fraction 50.0 35.9 71.8 50.0-150 (S) o-Terphenyl 60.1 18.0-148 L1781848-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1781848-03 09/28/24 12:23 • (MS) R4125776-3 09/28/24 12:36 • (MSD) R4125776-4 09/28/24 12:49 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% TPH (GC/FID) High Fraction 51.6 ND 36.5 35.8 63.7 62.3 1 50.0-150 1.82 20 (S) o-Terphenyl 62.3 51.3 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 25 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 25 of 33 QUALITY CONTROL SUMMARYWG2372429 TPH by Method NJDEP EPH L1781848-02 Method Blank (MB) (MB) R4126513-1 09/30/24 14:40 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg C9-C12 Aliphatics U 1.68 20.0 C12-C16 Aliphatics U 1.68 20.0 C16-C21 Aliphatics U 1.84 20.0 C21-C40 Aliphatics 2.01 J 1.84 20.0 (S) 1-Chloro-octadecane 63.2 40.0-140 Method Blank (MB) (MB) R4126513-1 09/30/24 14:40 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg C10 - C12 Aromatics U 2.12 20.0 C12-C16 Aromatics U 2.12 20.0 C16-C21 Aromatics U 2.12 20.0 C21-C36 Aromatics 2.21 J 2.12 20.0 (S) 2-Fluorobiphenyl 85.5 40.0-140 (S) 2-Bromonaphthalene 85.0 40.0-140 (S) o-Terphenyl 79.9 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4126513-2 09/30/24 15:02 • (LCSD) R4126513-3 09/30/24 15:23 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 %%%%% C9-C12 Aliphatics 20.0 9.28 9.27 46.4 46.4 40.0-140 0.108 50 C12-C16 Aliphatics 13.3 8.14 8.08 61.2 60.8 40.0-140 0.740 50 C16-C21 Aliphatics 20.0 12.9 12.7 64.5 63.5 40.0-140 1.56 50 C21-C40 Aliphatics 39.9 27.4 26.6 68.7 66.7 40.0-140 2.96 50 (S) 1-Chloro-octadecane 64.8 63.2 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4126513-2 09/30/24 15:02 • (LCSD) R4126513-3 09/30/24 15:23 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 %%%%% C10 - C12 Aromatics 6.65 4.78 4.57 71.9 68.7 40.0-140 4.49 50 C12-C16 Aromatics 20.0 14.3 13.8 71.5 69.0 40.0-140 3.56 50 C16-C21 Aromatics 33.3 25.7 24.8 77.2 74.5 40.0-140 3.56 50 C21-C36 Aromatics 53.2 38.8 37.6 72.9 70.7 40.0-140 3.14 50 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 26 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 26 of 33 QUALITY CONTROL SUMMARYWG2372429 TPH by Method NJDEP EPH L1781848-02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4126513-2 09/30/24 15:02 • (LCSD) R4126513-3 09/30/24 15:23 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 %%%%% (S) 2-Fluorobiphenyl 87.4 85.7 40.0-140 (S) 2-Bromonaphthalene 87.4 85.7 40.0-140 (S) o-Terphenyl 81.0 77.3 40.0-140 L1779642-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1779642-04 09/30/24 17:55 • (MS) R4126513-4 09/30/24 18:17 • (MSD) R4126513-5 09/30/24 18:38 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% C10 - C12 Aromatics 7.81 ND ND ND 69.8 81.2 3 40.0-140 11.7 50 C12-C16 Aromatics 23.4 ND ND ND 0.000 42.7 3 40.0-140 J6 25.3 50 C16-C21 Aromatics 39.0 280 196 270 0.000 0.000 3 40.0-140 V V 31.9 50 C21-C36 Aromatics 62.4 952 637 896 0.000 0.000 3 40.0-140 V E V 33.8 50 (S) 2-Fluorobiphenyl 100 104 40.0-140 (S) 2-Bromonaphthalene 97.0 98.8 40.0-140 (S) o-Terphenyl 82.2 88.3 40.0-140 Sample Narrative: OS: Dilution due to matrix impact during extract concentration procedure. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 27 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 27 of 33 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (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 E The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL). J The identification of the analyte is acceptable; the reported value is an estimate. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. J7 Surrogate recovery cannot be used for control limit evaluation due to dilution. V The sample concentration is too high to evaluate accurate spike recoveries. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 28 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 28 of 33 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:44 29 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1781848 10/03/24 11:55 29 of 33 ANALYTICAL REPORT October 02, 2024 WSP (Formely Wood E&I)-UT Sample Delivery Group:L1782949 Samples Received:09/28/2024 Project Number:US-EI-B81400504 Description:Draper Dig & Haul Report To:Rachel Ridge 10876 South River Front Parkway South Jordan, UT 84095 Entire Report Reviewed By: October 02, 2024 [Preliminary Report] Daphne Richards Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 1 of 12 October 03, 2024 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 1 of 12 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 PILE 3-BOTTOM-C L1782949-01 5 PILE 3-BOTTOM L1782949-02 6 Qc: Quality Control Summary 7 Total Solids by Method 2540 G-2011 7 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 8 Semi-Volatile Organic Compounds (GC) by Method 8015 9 Gl: Glossary of Terms 10 Al: Accreditations & Locations 11 Sc: Sample Chain of Custody 12 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 2 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 2 of 12 SAMPLE SUMMARY Collected by Collected date/time Received date/time PILE 3-BOTTOM-C L1782949-01 Solid Rachel Ridge 09/27/24 10:30 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2372724 1 09/27/24 10:30 09/30/24 22:32 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time PILE 3-BOTTOM L1782949-02 Solid Rachel Ridge 09/27/24 10:45 09/28/24 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2372755 1 10/01/24 08:03 10/01/24 08:14 CMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2373467 1 10/01/24 21:56 10/02/24 14:32 KDB 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: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 3 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 3 of 12 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Daphne Richards Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 4 of 12 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 4 of 12 SAMPLE RESULTS - 01 L1782949 PILE 3-BOTTOM-C Collected date/time: 09/27/24 10:30 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time TPH (GC/MS) Low Fraction U 0.183 0.500 1 09/30/2024 22:32 WG2372724 Benzene 0.000774 J 0.000375 0.00100 1 09/30/2024 22:32 WG2372724 1,2-Dichloroethane U 0.000450 0.00100 1 09/30/2024 22:32 WG2372724 1,2-Dibromoethane U 0.000250 0.00100 1 09/30/2024 22:32 WG2372724 Ethylbenzene U 0.000300 0.00100 1 09/30/2024 22:32 WG2372724 Methyl tert-butyl ether U 0.000350 0.00100 1 09/30/2024 22:32 WG2372724 Naphthalene U 0.00498 0.00500 1 09/30/2024 22:32 WG2372724 Toluene U 0.00123 0.00500 1 09/30/2024 22:32 WG2372724 Xylenes, Total 0.000649 J 0.000500 0.00300 1 09/30/2024 22:32 WG2372724 (S) Toluene-d8 94.6 75.0-131 09/30/2024 22:32 WG2372724 (S) 4-Bromofluorobenzene 82.9 67.0-138 09/30/2024 22:32 WG2372724 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/30/2024 22:32 WG2372724 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 5 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 5 of 12 SAMPLE RESULTS - 02 L1782949 PILE 3-BOTTOM Collected date/time: 09/27/24 10:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 95.6 1 10/01/2024 08:14 WG2372755 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.18 1 10/02/2024 14:32 WG2373467 (S) o-Terphenyl 88.5 18.0-148 10/02/2024 14:32 WG2373467 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 6 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 6 of 12 QUALITY CONTROL SUMMARYWG2372755 Total Solids by Method 2540 G-2011 L1782949-02 Method Blank (MB) (MB) R4126769-1 10/01/24 08:14 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1783290-04 Original Sample (OS) • Duplicate (DUP) (OS) L1783290-04 10/01/24 08:14 • (DUP) R4126769-3 10/01/24 08:14 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 84.8 85.0 1 0.151 10 Laboratory Control Sample (LCS) (LCS) R4126769-2 10/01/24 08:14 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 7 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 7 of 12 QUALITY CONTROL SUMMARYWG2372724 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 L1782949-01 Method Blank (MB) (MB) R4127450-4 09/30/24 17:12 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 (S) Toluene-d8 96.4 75.0-131 (S) 4-Bromofluorobenzene 87.9 67.0-138 (S) 1,2-Dichloroethane-d4 96.4 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4127450-1 09/30/24 15:31 • (LCSD) R4127450-2 09/30/24 15:51 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 0.0241 0.0246 96.4 98.4 70.0-123 2.05 20 1,2-Dichloroethane 0.0250 0.0233 0.0242 93.2 96.8 65.0-131 3.79 20 1,2-Dibromoethane 0.0250 0.0257 0.0253 103 101 74.0-128 1.57 20 Ethylbenzene 0.0250 0.0251 0.0261 100 104 74.0-126 3.91 20 Methyl tert-butyl ether 0.0250 0.0264 0.0268 106 107 66.0-132 1.50 20 Naphthalene 0.0250 0.0268 0.0265 107 106 59.0-130 1.13 20 Toluene 0.0250 0.0241 0.0243 96.4 97.2 75.0-121 0.826 20 Xylenes, Total 0.0750 0.0772 0.0784 103 105 72.0-127 1.54 20 (S) Toluene-d8 94.9 95.4 75.0-131 (S) 4-Bromofluorobenzene 81.1 82.5 67.0-138 (S) 1,2-Dichloroethane-d4 99.2 100 70.0-130 Laboratory Control Sample (LCS) (LCS) R4127450-3 09/30/24 16:31 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 92.1 75.0-131 (S) 4-Bromofluorobenzene 90.3 67.0-138 (S) 1,2-Dichloroethane-d4 99.2 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: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 8 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 8 of 12 QUALITY CONTROL SUMMARYWG2373467 Semi-Volatile Organic Compounds (GC) by Method 8015 L1782949-02 Method Blank (MB) (MB) R4127497-1 10/02/24 13:42 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH (GC/FID) High Fraction 1.49 J 0.769 4.00 (S) o-Terphenyl 102 18.0-148 Laboratory Control Sample (LCS) (LCS) R4127497-2 10/02/24 13:55 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/FID) High Fraction 50.0 48.5 97.0 50.0-150 (S) o-Terphenyl 40.4 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: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 9 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 9 of 12 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (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. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 10 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 10 of 12 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/02/24 20:00 11 of 12 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-B81400504 L1782949 10/03/24 09:14 11 of 12 ANALYTICAL REPORT October 15, 2024 WSP (Formely Wood E&I)-UT Sample Delivery Group:L1784776 Samples Received:10/03/2024 Project Number:US-EI-2381400504 Description:Draper Dig & Haul Report To:Rachel Ridge 10876 South River Front Parkway South Jordan, UT 84095 Entire Report Reviewed By: October 15, 2024 [Preliminary Report] Daphne Richards Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:08 1 of 11 October 15, 2024 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:09 1 of 11 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 PIT-BOTTOM-W-A L1784776-01 5 Qc: Quality Control Summary 6 Total Solids by Method 2540 G-2011 6 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 7 Semi-Volatile Organic Compounds (GC) by Method 8015 8 Gl: Glossary of Terms 9 Al: Accreditations & Locations 10 Sc: Sample Chain of Custody 11 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:08 2 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:09 2 of 11 SAMPLE SUMMARY Collected by Collected date/time Received date/time PIT-BOTTOM-W-A L1784776-01 Solid Rachel Ridge 10/02/24 07:45 10/03/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2375695 1 10/04/24 14:30 10/04/24 14:41 KDW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2377799 100 10/02/24 07:45 10/08/24 11:00 ADM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2380756 1 10/12/24 08:26 10/12/24 20:00 JDG 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:08 3 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:09 3 of 11 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Daphne Richards Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:08 4 of 11 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:09 4 of 11 SAMPLE RESULTS - 01 L1784776 PIT-BOTTOM-W-A Collected date/time: 10/02/24 07:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 77.8 1 10/04/2024 14:41 WG2375695 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/MS) Low Fraction 99.2 94.3 100 10/08/2024 11:00 WG2377799 Benzene ND 0.189 100 10/08/2024 11:00 WG2377799 1,2-Dichloroethane ND 0.189 100 10/08/2024 11:00 WG2377799 1,2-Dibromoethane ND 0.189 100 10/08/2024 11:00 WG2377799 Ethylbenzene 0.502 0.189 100 10/08/2024 11:00 WG2377799 Methyl tert-butyl ether ND 0.189 100 10/08/2024 11:00 WG2377799 Naphthalene 1.89 0.943 100 10/08/2024 11:00 WG2377799 Toluene ND 0.943 100 10/08/2024 11:00 WG2377799 Xylenes, Total 5.06 0.566 100 10/08/2024 11:00 WG2377799 (S) Toluene-d8 87.1 75.0-131 10/08/2024 11:00 WG2377799 (S) 4-Bromofluorobenzene 92.4 67.0-138 10/08/2024 11:00 WG2377799 (S) 1,2-Dichloroethane-d4 102 70.0-130 10/08/2024 11:00 WG2377799 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction 208 5.14 1 10/12/2024 20:00 WG2380756 (S) o-Terphenyl 0.000 J2 18.0-148 10/12/2024 20:00 WG2380756 Sample Narrative: L1784776-01 WG2380756: Surrogate failure due to matrix interference. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:08 5 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:09 5 of 11 QUALITY CONTROL SUMMARYWG2375695 Total Solids by Method 2540 G-2011 L1784776-01 Method Blank (MB) (MB) R4128794-1 10/04/24 14:41 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1784582-27 Original Sample (OS) • Duplicate (DUP) (OS) L1784582-27 10/04/24 14:41 • (DUP) R4128794-3 10/04/24 14:41 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 82.4 82.0 1 0.537 10 Laboratory Control Sample (LCS) (LCS) R4128794-2 10/04/24 14:41 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:08 6 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:09 6 of 11 QUALITY CONTROL SUMMARYWG2377799 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 L1784776-01 Method Blank (MB) (MB) R4131135-3 10/08/24 10:09 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH (GC/MS) Low Fraction U 4.58 12.5 Benzene U 0.00938 0.0250 1,2-Dichloroethane U 0.0113 0.0250 1,2-Dibromoethane U 0.00625 0.0250 Ethylbenzene U 0.00750 0.0250 Methyl tert-butyl ether U 0.00875 0.0250 Naphthalene U 0.125 0.125 Toluene U 0.0308 0.125 Xylenes, Total U 0.0125 0.0750 (S) Toluene-d8 106 75.0-131 (S) 4-Bromofluorobenzene 79.6 67.0-138 (S) 1,2-Dichloroethane-d4 100 70.0-130 Laboratory Control Sample (LCS) (LCS) R4131135-1 10/08/24 08:29 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Benzene 0.0250 0.0269 108 70.0-123 1,2-Dichloroethane 0.0250 0.0277 111 65.0-131 1,2-Dibromoethane 0.0250 0.0250 100 74.0-128 Ethylbenzene 0.0250 0.0280 112 74.0-126 Methyl tert-butyl ether 0.0250 0.0284 114 66.0-132 Naphthalene 0.0250 0.0277 111 59.0-130 Toluene 0.0250 0.0260 104 75.0-121 Xylenes, Total 0.0750 0.0857 114 72.0-127 (S) Toluene-d8 92.7 75.0-131 (S) 4-Bromofluorobenzene 81.1 67.0-138 (S) 1,2-Dichloroethane-d4 105 70.0-130 Laboratory Control Sample (LCS) (LCS) R4131135-2 10/08/24 09:09 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/MS) Low Fraction 5.00 4.26 85.2 52.0-154 (S) Toluene-d8 90.4 75.0-131 (S) 4-Bromofluorobenzene 92.5 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:08 7 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:09 7 of 11 QUALITY CONTROL SUMMARYWG2380756 Semi-Volatile Organic Compounds (GC) by Method 8015 L1784776-01 Method Blank (MB) (MB) R4132880-1 10/12/24 17:57 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 80.5 18.0-148 Laboratory Control Sample (LCS) (LCS) R4132880-2 10/12/24 18:10 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/FID) High Fraction 50.0 38.0 76.0 50.0-150 (S) o-Terphenyl 89.2 18.0-148 L1783749-11 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1783749-11 10/12/24 18:10 • (MS) R4132880-3 10/12/24 18:22 • (MSD) R4132880-4 10/12/24 18:34 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% TPH (GC/FID) High Fraction 49.2 ND 37.8 40.6 76.8 82.5 1 50.0-150 7.14 20 (S) o-Terphenyl 62.8 64.6 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:08 8 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:09 8 of 11 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (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 J2 Surrogate recovery limits have been exceeded; values are outside lower control limits. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:08 9 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:09 9 of 11 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:08 10 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1784776 10/15/24 17:09 10 of 11 ANALYTICAL REPORT October 23, 2024 WSP (Formely Wood E&I)-UT Sample Delivery Group:L1785581 Samples Received:10/04/2024 Project Number:US-EI-2381400504 Description:Draper Dig & Haul Report To:Rachel Ridge 10876 South River Front Parkway South Jordan, UT 84095 Entire Report Reviewed By: October 23, 2024 [Preliminary Report] Daphne Richards Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 mydata.pacelabs.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/23/24 16:10 1 of 11 October 24, 2024 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/24/24 09:59 1 of 11 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 PILE1-BOTTOM-A L1785581-01 5 PILE1-BOTTOM-B L1785581-02 6 Qc: Quality Control Summary 7 Total Solids by Method 2540 G-2011 7 Semi-Volatile Organic Compounds (GC) by Method 8015 8 Gl: Glossary of Terms 9 Al: Accreditations & Locations 10 Sc: Sample Chain of Custody 11 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/23/24 16:10 2 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/24/24 09:59 2 of 11 SAMPLE SUMMARY Collected by Collected date/time Received date/time PILE1-BOTTOM-A L1785581-01 Solid Rachel Ridge 10/03/24 08:40 10/04/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2378783 1 10/09/24 15:26 10/09/24 15:37 CMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2383235 1 10/17/24 06:07 10/19/24 11:15 JDG Mt. Juliet, TN Collected by Collected date/time Received date/time PILE1-BOTTOM-B L1785581-02 Solid Rachel Ridge 10/03/24 08:45 10/04/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2378783 1 10/09/24 15:26 10/09/24 15:37 CMB Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2383235 1 10/17/24 06:07 10/19/24 11:15 JDG 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/23/24 16:10 3 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/24/24 09:59 3 of 11 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Daphne Richards Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/23/24 16:10 4 of 11 Daphne Richards Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/24/24 09:59 4 of 11 SAMPLE RESULTS - 01 L1785581 PILE1-BOTTOM-A Collected date/time: 10/03/24 08:40 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 96.6 1 10/09/2024 15:37 WG2378783 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction 10.2 4.14 1 10/19/2024 11:15 WG2383235 (S) o-Terphenyl 80.7 18.0-148 10/19/2024 11:15 WG2383235 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/23/24 16:10 5 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/24/24 09:59 5 of 11 SAMPLE RESULTS - 02 L1785581 PILE1-BOTTOM-B Collected date/time: 10/03/24 08:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 93.0 1 10/09/2024 15:37 WG2378783 Semi-Volatile Organic Compounds (GC) by Method 8015 Result (dry) Qualifier RDL (dry) Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.30 1 10/19/2024 11:15 WG2383235 (S) o-Terphenyl 71.2 18.0-148 10/19/2024 11:15 WG2383235 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/23/24 16:10 6 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/24/24 09:59 6 of 11 QUALITY CONTROL SUMMARYWG2378783 Total Solids by Method 2540 G-2011 L1785581-01,02 Method Blank (MB) (MB) R4130848-1 10/09/24 15:37 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1785593-01 Original Sample (OS) • Duplicate (DUP) (OS) L1785593-01 10/09/24 15:37 • (DUP) R4130848-3 10/09/24 15:37 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 93.1 93.0 1 0.0605 10 Laboratory Control Sample (LCS) (LCS) R4130848-2 10/09/24 15:37 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/23/24 16:10 7 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/24/24 09:59 7 of 11 QUALITY CONTROL SUMMARYWG2383235 Semi-Volatile Organic Compounds (GC) by Method 8015 L1785581-01,02 Method Blank (MB) (MB) R4136395-1 10/19/24 09:24 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 93.4 18.0-148 Laboratory Control Sample (LCS) (LCS) R4136395-2 10/19/24 09:36 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/FID) High Fraction 50.0 44.5 89.0 50.0-150 (S) o-Terphenyl 84.8 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: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/23/24 16:10 8 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/24/24 09:59 8 of 11 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (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 The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/23/24 16:10 9 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/24/24 09:59 9 of 11 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/23/24 16:10 10 of 11 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: WSP (Formely Wood E&I)-UT US-EI-2381400504 L1785581 10/24/24 09:59 10 of 11 APPENDIX PROCTOR MOISTURE DENSITY RELATIONSHIPS AND COMPACTION TEST RESULTS Reviewed By:Cara Notestine Distribution:Ehud Ardon, Lucas Kerner, Cara Notestine, Rachel Ridge , Christopher Solesbee This report relates only to the items inspected/tested and shall not be reproduced, except in full, without prior written consent. WSP USA Environment & Infrastructure Inc. - 4884 S Commerce Drive Murray, UT 84107 phone: 801-870-9571 Report Date:September 10, 2024 Moisture / Density Relationship Client Project Name:WSP USA Name:(US2381400504) Draper Prison Task 3 Excavation Address: Millcreek, Utah 84738 Address: Draper, UT` Attention:Rachel Ridge Phase: Task: PO Number:Manager:Christopher Solesbee Sample Date: 9/4/2024 by Benjamin Bouwman Lab/Ref. #:1208 Source: Stockpile Sample #1 Description:Native/ dark brown silt w/ 1/15" agg Type of Specification:No project specification was provided. Sieve Analysis: (ASTM C117-17/C136-19) 200 Wash Procedure: A Specification Coarse Portion: Sieve Size Passing Min Max 1 1/2in.100% 1in.98% 3/4in.96% 1/2in.90% 3/8in.87% #4 75% Fine Portion: Sieve Size Passing Min Max #10 69% #16 65% #20 62% #40 51% #100 36% #200 24% Soil Classification (ASTM D2487-17)Moisture Density Relationship: (ASTM D1557-12) Method: C Preparation Method: Moist Rammer Type:Mechanical Specific Gravity: 2.7 Assumed Maximum Density (lbs/ft^3): 127.3 Optimum Moisture (%): 7.5 Remarks: page:1 of 1Report ID: Sieve, PI and Proctor Rev 0 2018/07/21 Reviewed By:Cara Notestine Distribution:Ehud Ardon, Lucas Kerner, Cara Notestine, Rachel Ridge , Christopher Solesbee This report relates only to the items inspected/tested and shall not be reproduced, except in full, without prior written consent. WSP USA Environment & Infrastructure Inc. - 4884 S Commerce Drive Murray, UT 84107 phone: 801-870-9571 Report Date:September 10, 2024 Moisture / Density Relationship Client Project Name:WSP USA Name:(US2381400504) Draper Prison Task 3 Excavation Address: Millcreek, Utah 84738 Address: Draper, UT` Attention:Rachel Ridge Phase: Task: PO Number:Manager:Christopher Solesbee Sample Date: 9/4/2024 by Benjamin Bouwman Lab/Ref. #:12309 Source: Stockpile Sample #2 Description:Native/ dark brown silt w/ 1-1.5" agg Type of Specification:No project specification was provided. Sieve Analysis: (ASTM C117-17/C136-19) 200 Wash Procedure: A Specification Coarse Portion: Sieve Size Passing Min Max 2in.100% 1 1/2in.99% 1in.97% 3/4in.96% 1/2in.89% 3/8in.87% #4 76% Fine Portion: Sieve Size Passing Min Max #10 69% #16 64% #20 61% #40 48% #100 36% #200 26% Soil Classification (ASTM D2487-17)Moisture Density Relationship: (ASTM D1557-12) Method: C Preparation Method: Moist Rammer Type:Mechanical Specific Gravity: 2.7 Assumed Maximum Density (lbs/ft^3): 128.7 Optimum Moisture (%): 7.7 Remarks: page:1 of 1Report ID: Sieve, PI and Proctor Rev 0 2018/07/21 Rev. 5/22/20 R-255 LAB NO.:PROJECT TEST NO.:PRICING: DATE TESTED: CORRELATION: T-99D *113.0 OPTIMUM H2O:*14.6 % 1 2 3 4 5 6 550 200 200 200 200 200 10345.7 10450.5 10486.2 10918.5 10827.4 10751.2 6457.8 6457.8 6457.8 6457.8 6457.8 6457.8 3887.9 3992.7 4028.4 4460.7 4369.6 4293.4 114.2 117.3 118.4 131.1 128.4 126.1 AD AE AF AG AH AI 844.9 949.4 934.5 1045.0 873.0 1168.0 807.9 897.4 872.1 961.2 805.4 1044.2 37.0 52.0 62.4 83.8 67.6 123.8 807.9 897.4 872.1 961.2 805.4 1044.2 402.6 405.6 407.3 399.9 401.7 408.9 405.3 491.8 464.8 561.3 403.7 635.3 9.1 10.6 13.4 14.9 16.7 19.5 104.7 106.1 104.3 114.0 110.0 105.6 113.0 113.0 14.6 14.6 2.0 100.0 2.60 162.2 REMARKS:A-4 242316 Dd = CORRECTED MAX DRY DENSITY (lbs/ft3) MCT = CORRECTED OPTIMUM H2O (%) CYLINDER WT. (g) WET SOIL WT. (g) WET DENSITY (lbs/ft3) CONTAINER NO. CONTAINER & WET SOIL WT. (g) CONTAINER & DRY SOIL WT. (g) H2O WT. (g) TYPE OF PROCTOR: PROJECT NAME: MOISTURE-DENSITY RELATIONSHIP GRAPH NO. MAX DRY DENSITY (lbs/ft3) OPTIMUM H2O (%) Df = PROCTOR MAX DRY DENSITY, FINE (lbs/ft3) MCf = PROCTOR OPTIMUM H2O, FINE (%) PC = PERCENT COARSE MATERIAL (%) CONTAINER & DRY SOIL WT. (g) CONTAINER WT. (g) DRY SOIL WT. (g) MOISTURE CONTENT (%) DRY DENSITY (lbs/ft3) TEST NO. WATER ADDED (mL) CYL. & WET SOIL WT (g) Pf = PERCENT FINE MATERIAL (%) k = MASS PER VOLUME (lbs/ft3) Les Seckletstewa & Adam Arriola Travis Bair TESTED BY: LAB MANAGER: MCC = COARSE OPTIMUM H2O (%) BULK SP. GR. PROJECT NO.: STATION OR LOCATION: DATE SAMPLED: MATERIAL TYPE: MAXIMUM DENSITY (lbs/ft3): The Point Redevelopment UT-CV-3355-22 04 060 12-Sep-24 Native 102.0 104.0 106.0 108.0 110.0 112.0 114.0 116.0 0.0 5.0 10.0 15.0 20.0 25.0 DR Y D E N S I T Y ( l b s / f t 3) MOISTURE CONTENT (%) MOISTURE-DENSITY GRAPH FIELD DENSITY TEST USING NUCLEAR DENSITY GAUGE (ASTM D6938-17) Moisture Density Curves Used Lab/Ref. # Maximum Density Optimum Moisture Test Type/ Method Description Source 12309 128.7 7.7 ASTM D1557-12/C Native/ dark brown silt w/ 1-1.5" agg Project: US2381400504 Standard Count Calibration Field Density:1614 1542 Moisture:517 524 Nuclear Density Gauge Make:Troxler Model #:3440 Serial #:17662 Test #Location Elevation Test Mode Probe Depth (in.) % Moisture Required Actual (-)(+) Wet Density (lbs/ft^3) Dry Density (lbs/ft^3) Maximum Density (lbs/ft^3) % Compaction Required Actual Min Max 01 N 40 29' 33" W 111 53' 58" 17' BTOF D 6 10.0 130.1 118.3 128.7 92 90 100 02 N 40 29' 33" W 111 53' 58" 18' BTOF D 6 8.2 134.8 124.6 128.7 97 90 100 BTSB=Below Top of Subbase, BTOF= Below Top of Fill, FSG = Finished Subgrade, FBC = Finished Base Course, BOP = Bottom of Pipe, BOB = Bottom of Base, BOF = Bottom of Footing, OGP = Original Ground Prep, TOA = TOP Of Asphalt, BG = Below Grade Test Mode = D for Direct Transmission and B for Backscatter Modes Reviewed By:Christopher Solesbee Distribution:Ehud Ardon, Lucas Kerner, Cara Notestine, Rachel Ridge , Christopher Solesbee This report relates only to the items inspected/tested and shall not be reproduced, except in full, without prior written consent. WSP USA Environment & Infrastructure Inc. - 4884 S Commerce Drive Murray, UT 84107 phone: 801-870-9571 Report Date:October 01, 2024 Field Density Soils Results Client Project Name:WSP USA Name:(US2381400504) Draper Prison Task 3 Excavation Address: Millcreek, Utah 84738 Address: Draper, UT` Attention:Rachel Ridge Phase: Task: PO Number:Manager:Christopher Solesbee Date Tested: 9/25/2024 by Abbas Taghinia Reference #:NS40441 General Description (Material/Location): Draper Prison Backfilling page: 1 of 1Report ID: Field Density Nuclear Test Result (Soils) Rev 0 2018/07/21 FIELD DENSITY TEST USING NUCLEAR DENSITY GAUGE (ASTM D6938-17) Moisture Density Curves Used Lab/Ref. # Maximum Density Optimum Moisture Test Type/ Method Description Source 12309 128.7 7.7 ASTM D1557-12/C Native/ dark brown silt w/ 1-1.5" agg Project: US2381400504 Standard Count Calibration Field Density:1614 1542 Moisture:517 524 Nuclear Density Gauge Make:Troxler Model #:3440 Serial #:17662 Test #Location Elevation Test Mode Probe Depth (in.) % Moisture Required Actual (-)(+) Wet Density (lbs/ft^3) Dry Density (lbs/ft^3) Maximum Density (lbs/ft^3) % Compaction Required Actual Min Max 01 N 40 29' 33" W 111 53' 58" 16' BTOF D 6 8.2 131.0 121.1 128.7 94 90 100 02 N 40 29' 33" W 111 53' 58" 15' BTOF D 6 11.4 139.5 125.2 128.7 97 90 100 BTSB=Below Top of Subbase, BTOF= Below Top of Fill, FSG = Finished Subgrade, FBC = Finished Base Course, BOP = Bottom of Pipe, BOB = Bottom of Base, BOF = Bottom of Footing, OGP = Original Ground Prep, TOA = TOP Of Asphalt, BG = Below Grade Test Mode = D for Direct Transmission and B for Backscatter Modes Reviewed By:Christopher Solesbee Distribution:Ehud Ardon, Lucas Kerner, Cara Notestine, Rachel Ridge , Christopher Solesbee This report relates only to the items inspected/tested and shall not be reproduced, except in full, without prior written consent. WSP USA Environment & Infrastructure Inc. - 4884 S Commerce Drive Murray, UT 84107 phone: 801-870-9571 Report Date:October 01, 2024 Field Density Soils Results Client Project Name:WSP USA Name:(US2381400504) Draper Prison Task 3 Excavation Address: Millcreek, Utah 84738 Address: Draper, UT` Attention:Rachel Ridge Phase: Task: PO Number:Manager:Christopher Solesbee Date Tested: 9/26/2024 by Abbas Taghinia Reference #:NS40550 General Description (Material/Location): Draper Prison Backfilling page: 1 of 1Report ID: Field Density Nuclear Test Result (Soils) Rev 0 2018/07/21 FIELD DENSITY TEST USING NUCLEAR DENSITY GAUGE (ASTM D6938-17) Moisture Density Curves Used Lab/Ref. # Maximum Density Optimum Moisture Test Type/ Method Description Source 12309 128.7 7.7 ASTM D1557-12/C Native/ dark brown silt w/ 1-1.5" agg Project: US2381400504 Standard Count Calibration Field Density:1614 1542 Moisture:517 524 Nuclear Density Gauge Make:Troxler Model #:3440 Serial #:17662 Test #Location Elevation Test Mode Probe Depth (in.) % Moisture Required Actual (-)(+) Wet Density (lbs/ft^3) Dry Density (lbs/ft^3) Maximum Density (lbs/ft^3) % Compaction Required Actual Min Max 01 40 29' 33" -111 53' 58" 12' BTOF D 8 12.9 133.9 118.6 128.7 92 90 100 02 40 29' 33" -111 53' 58" 11' BTOF D 8 13.2 135.3 119.5 128.7 93 90 100 03 40 29' 33" -111 53' 58" 10' BTOF D 8 10.8 135.0 121.8 128.7 95 90 100 04 40 29' 33" -111 53' 58" 9' BTOF D 8 14.2 135.3 118.5 128.7 92 90 100 05 40 29' 33" -111 53' 58" 8' BTOF D 8 13.5 136.0 119.8 128.7 93 90 100 BTSB=Below Top of Subbase, BTOF= Below Top of Fill, FSG = Finished Subgrade, FBC = Finished Base Course, BOP = Bottom of Pipe, BOB = Bottom of Base, BOF = Bottom of Footing, OGP = Original Ground Prep, TOA = TOP Of Asphalt, BG = Below Grade Test Mode = D for Direct Transmission and B for Backscatter Modes Reviewed By:Christopher Solesbee Distribution:Ehud Ardon, Lucas Kerner, Cara Notestine, Rachel Ridge , Christopher Solesbee This report relates only to the items inspected/tested and shall not be reproduced, except in full, without prior written consent. WSP USA Environment & Infrastructure Inc. - 4884 S Commerce Drive Murray, UT 84107 phone: 801-870-9571 Report Date:October 21, 2024 Field Density Soils Results Client Project Name:WSP USA Name:(US2381400504) Draper Prison Task 3 Excavation Address: Millcreek, Utah 84738 Address: Draper, UT` Attention:Rachel Ridge Phase: Task: PO Number:Manager:Christopher Solesbee Date Tested: 10/2/2024 by Abbas Taghinia Reference #:NS46275 General Description (Material/Location): Draper Prison Backfilling page: 1 of 1Report ID: Field Density Nuclear Test Result (Soils) Rev 0 2018/07/21 FIELD DENSITY TEST USING NUCLEAR DENSITY GAUGE (ASTM D6938-17) Moisture Density Curves Used Lab/Ref. # Maximum Density Optimum Moisture Test Type/ Method Description Source 12309 128.7 7.7 ASTM D1557-12/C Native/ dark brown silt w/ 1-1.5" agg Project: US2381400504 Standard Count Calibration Field Density:1614 1542 Moisture:517 524 Nuclear Density Gauge Make:Troxler Model #:3440 Serial #:17662 Test #Location Elevation Test Mode Probe Depth (in.) % Moisture Required Actual (-)(+) Wet Density (lbs/ft^3) Dry Density (lbs/ft^3) Maximum Density (lbs/ft^3) % Compaction Required Actual Min Max 01 40 29' 33" -111 53' 58" 7' BTOF D 6 12.8 134.0 118.8 128.7 92 90 100 02 40 29' 33" -111 53' 59" 6' BTOF D 6 12.5 134.6 119.6 128.7 93 90 100 03 40 29' 33" -111 53' 59" 6' BTOF D 6 12.0 134.8 120.4 128.7 94 90 100 BTSB=Below Top of Subbase, BTOF= Below Top of Fill, FSG = Finished Subgrade, FBC = Finished Base Course, BOP = Bottom of Pipe, BOB = Bottom of Base, BOF = Bottom of Footing, OGP = Original Ground Prep, TOA = TOP Of Asphalt, BG = Below Grade Test Mode = D for Direct Transmission and B for Backscatter Modes Reviewed By:Christopher Solesbee Distribution:Ehud Ardon, Lucas Kerner, Cara Notestine, Rachel Ridge , Christopher Solesbee This report relates only to the items inspected/tested and shall not be reproduced, except in full, without prior written consent. WSP USA Environment & Infrastructure Inc. - 4884 S Commerce Drive Murray, UT 84107 phone: 801-870-9571 Report Date:October 21, 2024 Field Density Soils Results Client Project Name:WSP USA Name:(US2381400504) Draper Prison Task 3 Excavation Address: Millcreek, Utah 84738 Address: Draper, UT` Attention:Rachel Ridge Phase: Task: PO Number:Manager:Christopher Solesbee Date Tested: 10/3/2024 by Abbas Taghinia Reference #:NS46355 General Description (Material/Location): Draper Prison Backfilling page: 1 of 1Report ID: Field Density Nuclear Test Result (Soils) Rev 0 2018/07/21 FIELD DENSITY TEST USING NUCLEAR DENSITY GAUGE (ASTM D6938-17) Moisture Density Curves Used Lab/Ref. # Maximum Density Optimum Moisture Test Type/ Method Description Source 12309 128.7 7.7 ASTM D1557-12/C Native/ dark brown silt w/ 1-1.5" agg Project: US2381400504 Standard Count Calibration Field Density:1614 1542 Moisture:517 524 Nuclear Density Gauge Make:Troxler Model #:3440 Serial #:17662 Test #Location Elevation Test Mode Probe Depth (in.) % Moisture Required Actual (-)(+) Wet Density (lbs/ft^3) Dry Density (lbs/ft^3) Maximum Density (lbs/ft^3) % Compaction Required Actual Min Max 01 40 29' 33" -111 53' 59" 5' BTOF D 6 10.5 138.6 125.4 128.7 97 90 100 02 40 29' 32" -111 53' 58" 5' BTOF D 6 13.5 138.9 122.4 128.7 95 90 100 03 40 29' 33' -111 53' 58" 5' BTOF D 6 11.3 136.3 122.5 128.7 95 90 100 BTSB=Below Top of Subbase, BTOF= Below Top of Fill, FSG = Finished Subgrade, FBC = Finished Base Course, BOP = Bottom of Pipe, BOB = Bottom of Base, BOF = Bottom of Footing, OGP = Original Ground Prep, TOA = TOP Of Asphalt, BG = Below Grade Test Mode = D for Direct Transmission and B for Backscatter Modes Reviewed By:Christopher Solesbee Distribution:Ehud Ardon, Lucas Kerner, Cara Notestine, Rachel Ridge , Christopher Solesbee This report relates only to the items inspected/tested and shall not be reproduced, except in full, without prior written consent. WSP USA Environment & Infrastructure Inc. - 4884 S Commerce Drive Murray, UT 84107 phone: 801-870-9571 Report Date:October 21, 2024 Field Density Soils Results Client Project Name:WSP USA Name:(US2381400504) Draper Prison Task 3 Excavation Address: Millcreek, Utah 84738 Address: Draper, UT` Attention:Rachel Ridge Phase: Task: PO Number:Manager:Christopher Solesbee Date Tested: 10/4/2024 by Abbas Taghinia Reference #:NS46354 General Description (Material/Location): Draper Prison Backfilling page: 1 of 1Report ID: Field Density Nuclear Test Result (Soils) Rev 0 2018/07/21 FIELD DENSITY TEST USING NUCLEAR DENSITY GAUGE (ASTM D6938-17) Moisture Density Curves Used Lab/Ref. # Maximum Density Optimum Moisture Test Type/ Method Description Source 12309 128.7 7.7 ASTM D1557-12/C Native/ dark brown silt w/ 1-1.5" agg Project: US2381400504 Standard Count Calibration Field Density:1614 1542 Moisture:517 524 Nuclear Density Gauge Make:Troxler Model #:3440 Serial #:17662 Test #Location Elevation Test Mode Probe Depth (in.) % Moisture Required Actual (-)(+) Wet Density (lbs/ft^3) Dry Density (lbs/ft^3) Maximum Density (lbs/ft^3) % Compaction Required Actual Min Max 01 N 40 29' 33" W 111 53' 58" 4' BTOF D 6 4.9 126.3 120.4 128.7 94 90 100 02 N 40 29' 33" W 111 53' 58" 3' BTOF D 6 6.8 127.3 119.6 128.7 93 90 100 BTSB=Below Top of Subbase, BTOF= Below Top of Fill, FSG = Finished Subgrade, FBC = Finished Base Course, BOP = Bottom of Pipe, BOB = Bottom of Base, BOF = Bottom of Footing, OGP = Original Ground Prep, TOA = TOP Of Asphalt, BG = Below Grade Test Mode = D for Direct Transmission and B for Backscatter Modes Reviewed By:Christopher Solesbee Distribution:Ehud Ardon, Lucas Kerner, Cara Notestine, Rachel Ridge , Christopher Solesbee This report relates only to the items inspected/tested and shall not be reproduced, except in full, without prior written consent. WSP USA Environment & Infrastructure Inc. - 4884 S Commerce Drive Murray, UT 84107 phone: 801-870-9571 Report Date:October 10, 2024 Field Density Soils Results Client Project Name:WSP USA Name:(US2381400504) Draper Prison Task 3 Excavation Address: Millcreek, Utah 84738 Address: Draper, UT` Attention:Rachel Ridge Phase: Task: PO Number:Manager:Christopher Solesbee Date Tested: 10/9/2024 by Abbas Taghinia Reference #:NS43869 General Description (Material/Location): Draper Prison Backfilling page: 1 of 1Report ID: Field Density Nuclear Test Result (Soils) Rev 0 2018/07/21 FIELD DENSITY TEST USING NUCLEAR DENSITY GAUGE (ASTM D6938-17) Moisture Density Curves Used Lab/Ref. # Maximum Density Optimum Moisture Test Type/ Method Description Source 12309 128.7 7.7 ASTM D1557-12/C Native/ dark brown silt w/ 1-1.5" agg Project: US2381400504 Standard Count Calibration Field Density:1614 1542 Moisture:517 524 Nuclear Density Gauge Make:Troxler Model #:3440 Serial #:17662 Test #Location Elevation Test Mode Probe Depth (in.) % Moisture Required Actual (-)(+) Wet Density (lbs/ft^3) Dry Density (lbs/ft^3) Maximum Density (lbs/ft^3) % Compaction Required Actual Min Max 01 N 40 29' 33" W 111 53' 58" TOF D 6 8.4 131.9 121.7 128.7 95 90 100 02 N 40 29' 33" W 111 53' 58" TOF D 6 7.9 132.0 122.3 128.7 95 90 100 BTSB=Below Top of Subbase, BTOF= Below Top of Fill, FSG = Finished Subgrade, FBC = Finished Base Course, BOP = Bottom of Pipe, BOB = Bottom of Base, BOF = Bottom of Footing, OGP = Original Ground Prep, TOA = TOP Of Asphalt, BG = Below Grade Test Mode = D for Direct Transmission and B for Backscatter Modes Reviewed By:Christopher Solesbee Distribution:Ehud Ardon, Lucas Kerner, Cara Notestine, Rachel Ridge , Christopher Solesbee This report relates only to the items inspected/tested and shall not be reproduced, except in full, without prior written consent. WSP USA Environment & Infrastructure Inc. - 4884 S Commerce Drive Murray, UT 84107 phone: 801-870-9571 Report Date:October 11, 2024 Field Density Soils Results Client Project Name:WSP USA Name:(US2381400504) Draper Prison Task 3 Excavation Address: Millcreek, Utah 84738 Address: Draper, UT` Attention:Rachel Ridge Phase: Task: PO Number:Manager:Christopher Solesbee Date Tested: 10/10/2024 by Abbas Taghinia Reference #:NS44303 General Description (Material/Location): Draper Prison Backfilling page: 1 of 1Report ID: Field Density Nuclear Test Result (Soils) Rev 0 2018/07/21