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HomeMy WebLinkAboutDERR-2025-003161Cover Page Remedial Action Plan Lonestar Properties LLC — Former Anderson Auto Wrecking Site, 2890 South State Street, Spanish Fork, Utah County, Utah Voluntary Cleanup Program Site #C127 April 22, 2025 | Terracon Project No. 61237032 Utah Department of Environmental Quality / Division of Environmental Response and Remediation Voluntary Cleanup Program (VCP) 6952 South High Tech Dr. Ste. B Midvale, Utah 84047 P (801) 545-8500 Terracon.com Facilities | Environmental | Geotechnical | Materials i Cover Letter April 22, 2025 Department of Environmental Quality Division of Environmental Response and Remediation P.O. Box 144840 Salt Lake City, Utah 84114-4840 Attn: Lincoln Grevengoed P: (801) 536-4100 E: lgrevengoed@utah.gov Re:Remedial Action Plan Lonestar Properties LLC — Former Anderson Auto Wrecking Site Voluntary Cleanup Program Site #C127 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Dear Mr. Grevengoed: Terracon Consultants, Inc. (Terracon) has developed this Remedial Action Plan (RAP) for submission to the Utah Department of Environmental Quality Division of Environmental Response and Remediation (DERR) Voluntary Cleanup Program (VCP) on of behalf Lonestar Properties LLC (client) to address redevelopment of the site. Please contact Andrew Turner at (385) 388-7028 if you have questions regarding this information. Sincerely, Terracon Consultants, Inc. Andrew S. Turner Amy Austin Senior Project Manager Authorized Project Reviewer Environmental Services ' P \ ' X V W L Q Facilities | Environmental | Geotechnical | Materials ii Table of Contents 1.0 INTRODUCTION ................................................................... 1 1.1 Site Description ..................................................................................... 1 1.2 Project Background ................................................................................ 1 1.3 Public Notice .......................................................................................... 1 2.0 ENVIRONMENTAL ASSESSMENT ............................................. 2 2.1 Previous Investigations ........................................................................... 2 2.2 Summary of Site Impacts ........................................................................ 2 2.3 Contaminants of Concern and Cleanup Levels ............................................ 3 2.4 Site Conceptual Model ............................................................................ 4 2.4.1 Sources and Affected Media ..................................................................... 4 2.4.2 Routes of Exposure and Receptors............................................................ 4 3.0 REMEDIAL ACTION PLAN OBJECTIVES .................................... 5 4.0 REMEDIAL APPROACH .......................................................... 6 4.1 Soil Excavation Procedures ...................................................................... 6 4.2 Vapor Intrusion Mitigation ....................................................................... 7 4.3 Evaluation and Sampling of Former Residential Structure ............................ 8 4.4 PFAS in Groundwater Sampling ................................................................ 8 5.0 QUALITY ASSURANCE/QUALITY CONTROL ............................... 8 6.0 CONSTRUCTION MANAGEMENT ............................................. 9 6.1 Site Access Control ................................................................................. 9 6.2 Haul Roads and Equipment Decontamination ............................................. 9 6.3 Special Training Requirements ................................................................. 9 6.4 Storm Water Control and Fugitive Emissions ............................................ 10 6.5 Construction Dewatering ....................................................................... 10 7.0 CONTINGENCY PLANS ........................................................ 10 7.1 Encapsulation of Soils ........................................................................... 10 7.2 Segregation / Characterization of Previously Unidentified Potentially Contaminated Soil .......................................................................................... 11 7.3 Landfill Debris ...................................................................................... 11 7.4 Unidentified Environmental Concerns ...................................................... 11 Facilities | Environmental | Geotechnical | Materials iii 8.0 POST REMEDIATION DOCUMENTATION AND REPORTING ........ 12 8.1 RAP Implementation Report ................................................................... 12 8.2 Environmental Covenant and Site Management Plan ................................. 12 9.0 PROJECT SCHEDULE ........................................................... 12 10.0 REFERENCES ..................................................................... 13 APPENDICES Appendix A Exhibits Exhibit 1: Topographic Site Overview Exhibit 2: Site Diagram with Redevelopment Plans Exhibit 3: Metals Exceedances in Soil Exhibit 4: Petroleum Hydrocarbon Exceedances in Soil Exhibit 5: VOC Exceedances in Soil Gas Exhibit 6: RAP Excavation and PFAS Sample Locations Exhibit 7: Site Conceptual Model Appendix B Public Notice Appendix C Analytical Data Tables Table 1: Metals in Soil (2024 Investigation) Table 2: VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Table 3: Metals in Soil (2022 Investigation) Table 4: VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Table 5: VOCs and Explosive Gases in Soil Gas (2022 Investigation) Appendix D DEQ DERR Letter, February 28, 2025 Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 1 1.0 Introduction 1.1 Site Description Site name Lonestar Properties LLC — Former Anderson Auto Wrecking DERR VCP Site #C127 Site location/address 2890 South State Street, Spanish Fork, Utah General site description The site is comprised of approximately 3.9 acres covering two parcels (27:010:0140 and 27:010:0139). The former residence at the site was recently removed and the entire site is vacant. Exhibit 1 (Appendix A) illustrates the approximate location of the site in relation to the surrounding area.Exhibit 2 is a site diagram indicating the approximate locations of the historical and recent sample locations and related features. Current redevelopment plans for the site are shown in Exhibit 2. The property was enrolled into the Voluntary Cleanup Program (VCP) to address the environmental impacts prior to redevelopment of the site. The VCP is implemented by the Utah Department of Environmental Quality (UDEQ) Division of Environmental Response and Remediation (DERR). The site has been issued VCP Site ID C127. 1.2 Project Background The site was formerly occupied by the Anderson Auto Wrecking facility, which historically operated as an automotive salvage yard from approximately 1977 to the mid-2010s. The Anderson Auto Wrecking facility formerly stored large numbers of old vehicles, trailers, tires, engines, scrap metal, and other vehicle parts. Storage sheds at the wrecking yard stored car batteries, gasoline cans, engine wastes, scrap metal, asphaltic tar, paint, as well as miscellaneous debris. A crushing station, used to crush cars and other metallic debris, was located on the southern portion of the yard behind a single-family home (now demolished). The site currently consists primarily of vacant land. Proposed development of the site includes residential townhomes (Exhibit 2). 1.3 Public Notice Public Notice is required prior to conducting remedial work at the site. The Public Notice will be published for two consecutive days in the local newspaper and mailed and/or hand- delivered to adjacent landowners and will provide 30 calendar days for public comments to be submitted. A copy of the Public Notice is provided in Appendix B. Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 2 2.0 Environmental Assessment 2.1 Previous Investigations Multiple investigations have been conducted at the site to identify and characterize the nature and extent of impacts relating to the historical operations conducted at the site. Terracon conducted a Phase I Environmental Site Assessment (ESA) on the site in 2022 (Terracon, 2022). The Phase I ESA included a portion of property to the west of this VCP project boundary. The purpose of the Phase I ESA was to identify any Recognized Environmental Conditions (RECs) in connection with the site. The Phase I ESA identified multiple Recognized Environmental Conditions (RECs) associated with current and historical uses of the site and adjoining properties. Environmental impacts associated with current and historical uses of the site have also been confirmed by several previous investigations (DERR 2021; IHI 2007a; IHI 2007b). A Phase II Site Investigation was conducted by Terracon in 2022 (Terracon, 2023a), which also included the portion of the property adjoining this VCP project site to the west. Multiple soil and groundwater borings and soil gas probes were installed at various portions of the site and adjoining property. Only environmental samples collected within the VCP site property boundary are referred to and displayed in this report (Appendix A, Exhibit 2). An additional Site Characterization event was conducted at the site by Terracon in June 2024 (Terracon, 2024b) to evaluate environmental impacts resulting from isolated surficial areas within the site where the recent assessments indicated possible shallow soil contamination that had not been fully defined. Two samples (SS-4 and SS-11) exceeded the ISL for TRPH. No sample exceeded the Tier 1 Screening Level. A Risk Evaluation was conducted as part of the 2024 Site Characterization event. Concentrations of all detected volatile organic compounds (VOCs) and metals in the shallow soil were entered into the EPA RSL Calculator. Neither the carcinogenic risk nor the non- carcinogenic Hazard Index were above the target excess cancer risk nor the target hazard risk for the Resident, Indoor Worker, or Construction Worker Scenario. 2.2 Summary of Site Impacts Previous investigations included the collection and laboratory analyses of soil, groundwater, and soil gas samples at the site. Native soils and non-native fill materials were analyzed for VOCs, Total Petroleum Hydrocarbons in the gasoline and diesel range (TPH-GRO and TPH- DRO), Total Recoverable Petroleum Hydrocarbons (TRPH), Resource Conservation and Recovery Act (RCRA) 8 Metals (arsenic, barium, cadmium, chromium, lead, mercury, nickel, and silver), hexavalent chromium, and polychlorinated biphenols (PCBs). Groundwater samples were analyzed for VOCs, TPH-GRO, TPH-DRO, TRPH, dissolved RCRA 8 Metals, and hexavalent chromium. Soil gas samples were analyzed for VOCs, methane, ethane, and ethene. Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 3 2.1.1 Soil Impacts Results for soil samples were compared to the EPA RSLs and UDEQ ISLs and Tier 1 Screening Levels. Limited areas of soil were reported to exceed a regulatory screening level for lead, hexavalent chromium, TPH-DRO, and TRPH. ■Non-native fill material sampled during the previous investigations reported TRPH exceeding the Utah Tier 1 Screening Level (10,000 mg/kg) and TPH-DRO concentrations exceeding the Utah ISL (500 mg/kg) in B-6. ■Shallow soil samples collected at SS-4 and SS-11 (soil stockpile) exceeded the Utah ISL for TRPH. ■Lead exceeded the Residential RSL (200 mg/kg) in B-12. Samples collected from native soil at 4 feet below ground surface (bgs) in B-12 exceeded the Utah ISL for TPH-DRO and TRPH. Staining was also noted from 8 to 10 feet bgs. ■Hexavalent chromium exceeded the Residential RSL (0.95 mg/kg) in B-15. Impacted soil was not widespread and limited to spot areas on the site.Exhibits 3 and 4 and Tables 1 through Table 4 show the concentrations and areas where metals and petroleum hydrocarbons exceeded a screening level. 2.1.2 Groundwater Impacts Groundwater sample results were compared to EPA MCLs where established or Tap Water Screening Levels if MCLs were not available. Significant impacts to groundwater originating from operations on the site were not identified. 2.1.3 Soil Gas Impacts Soil gas sample results were compared to EPA VISLs. The concentrations of benzene reported in soil gas samples exceeded the Residential VISL in SG-3, SG-4, and SG-9. Soil gas sampling locations and exceedances are shown on Exhibit 5 and Table 5. 2.3 Contaminants of Concern and Cleanup Levels The following contaminants of concern (COC) have been identified at the site based on their presence above EPA and UDEQ cleanup levels. The cleanup level for each COC is included in the table. Contaminant of concern Affected media Cleanup level Lead Soil 200 mg/kg1 Hexavalent chromium Soil 0.95 mg/kg1 Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 4 Contaminant of concern Affected media Cleanup level TPH-DRO Soil 500 mg/kg2 TRPH Soil 1,000 mg/kg2 Benzene Soil Gas NA3 1.EPA’s November 2024 Regional Screening Levels (RSLs) for residential soil using a Target Cancer Risk=1E-06 and a non-cancer Hazard Quotient of 1. 2.Utah DEQ Initial Screening Level for petroleum hydrocarbons in soil. 3.Cleanup Level Not Applicable. Soil gas will be addressed through the incorporation of a vapor mitigation system under residential structures. In a letter dated February 28, 2025, UDEQ DERR identified a possibility of potential per and polyfluorinated substances (PFAS) impacts in groundwater on the western boundary of the site due to a nearby historical unregulated landfill (Appendix D). Terracon will sample groundwater in this area and compare these results to their appropriate EPA MCLs, where they exist, for individual PFAS analytes (Exhibit 6). 2.4 Site Conceptual Model Using data obtained from the previous investigations discussed above, Terracon developed a Conceptual Site Model (CSM), to evaluate the site-specific risks associated with the COCs at the site based on the source(s) of contamination, the release mechanism(s), potential routes of exposure (ROE), representative concentrations of COCs, and receptors (i.e., property occupants and employees). A graphical representation of the CSM is presented as Exhibit 7 (Appendix A). Screening levels used for the evaluation are discussed above in Section 2.3. 2.4.1 Sources and Affected Media Sources of contamination are the impacted fill material, the native soil in one portion of the site (B-6), and soil gas. Contaminants in fill and native soil appear to be related to the historical use of the site as an auto wrecking facility. Soil gas impacts appear to be limited to benzene, which may be originating from an off-site source. 2.4.2 Routes of Exposure and Receptors The proposed future development will bring construction workers to the site as well as future residents and visitors. The following routes of exposure were evaluated to identify if complete pathways for construction workers, future residents, and future employees and clients exist at the site. Soil Routes of Exposure: Ingestion, inhalation of dust particulates, and dermal contact with soil are the routes of exposure that may exist. Construction workers could be exposed Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 5 during site preparations such as grubbing and grading and excavations for utilities. As long as areas of impacted fill and native soils remain on the site, this is considered a complete exposure pathway. As impacted fill and native soils are expected to be fully removed during this phase, future use of the site will not present an exposure pathway for either commercial users or residents. As such, exposure via soils and fill is not a complete exposure pathway in future use scenarios. Soil Vapor Routes of Exposure: Benzene has been detected in soil gas samples at the site at concentrations that exceed residential screening levels. Soil gas is a concern in enclosed spaces and as such, there is no exposure pathway for the construction worker. The RAP includes the use of vapor intrusion mitigation controls (vapor barrier) beneath occupied buildings. This engineering control will prevent a complete exposure pathway for future users of the site. 3.0 Remedial Action Plan Objectives Based on the results of the previous investigations, this RAP is intended to address the following issues at the site: ■petroleum hydrocarbon exceedances in shallow (fill) and deeper (native) soil in selected areas ■metals (lead and hexavalent chromium) exceedances in the shallow fill material in selected areas ■benzene exceedances over the VISL in soil gas in selected areas ■evaluation of soil under foundation of former residential structure ■possible PFAS impacts to groundwater along the western edge of the site originating from the west-adjoining property The remedial action plan designed for the site will consist of the following components: ■excavation, removal, proper disposal, and confirmation sampling of shallow fill material (1–3 feet bgs) in select areas where metals and petroleum hydrocarbon impacts were detected above screening levels in previous investigations ■excavation, removal, proper disposal, and confirmation sampling of native soil to a depth of approximately 10 feet bgs around boring B-12 where petroleum hydrocarbon impacts were detected above screening levels in a previous investigation ■vapor intrusion mitigation for all residential structures Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 6 ■observation and sampling of soil beneath the former residential structure ■sampling of groundwater along the western edge of the site adjacent to the historic landfill for evaluation of PFAS These combined components will ensure the safety of construction workers during development and prevent exposure to future residents from the existing impacts reported at the site as well as from potential hazards from surrounding properties that may impact the site in the future. 4.0 Remedial Approach The following sections detail the implementation of the remedial approach designed for the site. 4.1 Soil Excavation Procedures It is unknown whether the proposed development plan will require removal of all non-native fill material from beneath buildings, roadways, and parking lots. However, fill material and non-native soils exceeding a cleanup level will be excavated and transported to a properly permitted facility for disposal. Excavation and removal of impacted materials will be performed prior to development and transfer of any non-impacted fill off-site. 4.1.1 Soils Exceeding Cleanup Levels Five localized areas of soil were identified to exceed a regulatory screening level during site characterization investigations: B-6, B-12, B-15, SS-4, and SS-11 (stockpile), as shown on Exhibit 6. Initial excavation of each impacted area will extend approximately 3 to 5 feet to the north, south, east, and west of the initial sampling location and will be excavated to at least the fill/native soil interface (approximately 1 foot to 3 feet depth depending on the location). Excavated soil from each of the excavations will be stockpiled on visqueen adjacent to the excavation area. A table displaying the area of investigation, depth of anticipated excavation based on borehole logs and contaminants of concern is listed below. Area Excavation depth COCs B-6 3 feet bgs TPH-DRO, TRPH B-15 2 feet bgs Hexavalent Chromium SS-4 1 foot bgs TRPH SS-111 Stockpile TRPH B-12 10 feet bgs Lead (near surface), TPH-DRO, TRPH Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 7 1.The soil in stockpile SS-11 was used to backfill the basement of the residence after demolition. See Section 4.3. Confirmation samples will be collected in 5-point composites along each wall of the excavation at a rate not to exceed one sample per 50 linear feet. The floor of the excavation will be sampled at a rate of one 5-point composite sample not-to-exceed 2,500 square feet. If an extent of excavation sample reports a COC detected above a screening level, the excavation will proceed an additional 3 to 5 feet in the direction of the wall sample that failed and an additional 6-inches for the floor. This sampling and excavation process will be repeated until the extent of excavation wall and floor samples do not report a concentration of a COC that exceeds a screening level. 4.1.2 Confirmation Sampling Analytical Program Confirmation sampling will be conducted along the edges and floor of the individual excavations as described above. The sample analytes have been selected based on the COCs reported in the site characterization investigations. Confirmation sampling will include collection of Quality Control samples in accordance with the project Quality Assurance Project Plan (QAPP) submitted to the DEQ DERR on March 28, 2024 (Terracon, 2024a). 4.1.3 Off-Site Disposal of Soil Once excavation and removal of all soil exceeding a screening level has been completed, the site soils will be considered below actions levels. If any soils are to be transported off-site during development, the soil will be stockpiled and sampled prior to removal from the property. One 10-point composite sample will be collected from stockpiled fill at a rate not- to-exceed 10,000 cubic yards of material. Samples will be submitted to a laboratory for profile purposes and will be analyzed for lead, hexavalent chromium, TPH-DRO, TRPH, and any other analytes as required by the receiving facility. 4.2 Vapor Intrusion Mitigation Design of future site structures will include standard industry practices and controls for mitigation of potential vapor intrusion and will be based on site-specific soil gas data. This may include either building design (such as thickened concrete slabs) and/or a vapor barrier installed below the floor slabs. It is anticipated that the site will utilize a vapor barrier under each residential structure. The vapor barrier will be VOC rated, have a design that will specify minimum standards such as vapor barrier material, thickness, and sealing methods, and the plans will be stamped by a Utah-licensed Professional Engineer. It will be installed according to manufacturer’s specifications by a qualified contractor and installation will be observed by a knowledgeable third party to verify adherence to the design. Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 8 The final vapor mitigation measures used at the site and verification of installation by a qualified contractor will be documented in the RAP Implementation Report. 4.3 Evaluation and Sampling of Former Residential Structure A soil stockpile was previously located on the site to the west of the former residence. A sample (SS-11) collected from this stockpile reported a TRPH concentration exceeding the Utah ISL. It was reported that, during the demolition of the residence, the soil from the stockpile was used to backfill the basement during the demolition of the structure. Total depth of the excavation of the basement was 8 feet bgs. To evaluate soils used to backfill the basement after demolition of the residence, two soil borings will be drilled within the footprint of the area to a total depth of 10 feet bgs. Soil will be observed for any staining, odor, or potential impacts. A photo ionization detector (PID) will be utilized to further indicate petroleum hydrocarbon impacts. One soil sample will be collected from each boring for laboratory analysis based on field screening data (e.g., visual observations and photoionization detection [PID] readings) or professional judgement. If no significant impacts are observed, one composite soil sample will be collected from the entire profile of the soil boring (0 to 10 feet bgs). 4.4 PFAS in Groundwater Sampling One soil boring will be advanced to approximately 20 feet bgs utilizing direct push technology at the approximate location shown on Exhibit 6 to sample groundwater for PFAS. A groundwater sample will be collected from the open boring using a peristaltic pump through dedicated tubing lowered into the water column through the drill rig tooling such as a stainless steel screen. The groundwater sample will be shipped to Pace Analytical for analysis of PFAS using EPA Method 1633 per chain of custody protocol. No duplicate sample is proposed as this is a general baseline sample to determine whether PFAS is present. Results of the groundwater sampling will be presented in the RAP Implementation Report. 5.0 Quality Assurance/Quality Control Sampling will be conducted according to the Standard Operating Procedures (SOPs) provided in the QAPP. Quality control for the sampling program will include using standardized sample collection and handling methods, documenting pertinent field information, keeping chain-of-custody records, and collecting quality control samples (i.e., field duplicate samples and Agency split samples). For this sampling activity, field duplicate samples will be collected from the confirmation samples at a rate of 10 percent of the sample load. Agency split samples will be collected at the discretion of the VCP. Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 9 6.0 Construction Management 6.1 Site Access Control The General Contractor will be required to maintain strict access control to and from the site at all times during removal of impacted soil. The boundaries of the entire site are to be fenced and points of ingress and egress are to be designated and controlled. 6.2 Haul Roads and Equipment Decontamination The initial phase of construction will consist of excavating impacted materials and disposing of them off-site at an approved facility. During excavation of impacted material, the entrance and exit points of the property where equipment and dump trucks will enter and leave the property will be constructed with a temporary gravel base and/or rip rap. The exit point will have a rumble strip to help remove soil from the equipment and dump trucks. For construction equipment (dump trucks, front-end loaders, track hoes, etc.), visible soil and debris will be brushed from the equipment prior to leaving the site. Trucks hauling impacted soil and entering public roads will be tarped. For hand tools, visible soil and debris will be brushed from the tools prior to them leaving the site. Equipment or tool washing, using either water or a water and mild detergent mixture, may be permitted if wash water controls have been established that will inhibit run-off of wash water and/or sediment from the decontamination area. In the event soil track-out occurs, the streets will be swept using street cleaning equipment and/or hand tools. When possible, the area will be lightly wet before cleaning to reduce fugitive dust during sweeping activities. It is not anticipated that wash water controls will be required; however, if deemed necessary, the control measures will be developed and implemented in consultation with the DERR. Once excavation of impacted material is complete, all subsequent activities can be conducted following general construction standards. Best management practices for eliminating track-out, fugitive dust emissions, and stormwater runoff will be maintained. 6.3 Special Training Requirements Field personnel involved in the remediation activities will have up-to-date Occupational Safety and Health Administration (OSHA) 40-hour Hazardous Waste Operations and Emergency Response (HAZWOPER) training, including an up-to-date 8-hour refresher course as required by OSHA. This will typically include equipment operators involved in removing impacted fill and soil and Terracon staff directing excavation activities and collecting confirmation samples. Once impacted materials have been segregated and disposed of, the HAZWOPER training requirement will no longer be applicable. Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 10 All site workers that could come into contact with impacted materials will receive training about the specific hazards of the contaminants of concern and how to minimize exposures to those contaminants through the use of engineering controls, work practices, personal hygiene, and personal protective equipment. This information is intended to meet the requirements in the OSHA Hazard Communication Standard (29 CFR 1910.1200(h)(1) for training relative to new chemical hazards in their work area for which employees have not previously received training. All contractors on the site will be responsible for including the information in a site-specific health and safety plan and its implementation. 6.4 Storm Water Control and Fugitive Emissions The General Contractor will be required to prepare a Storm Water Pollution Prevention Plan (SWPPP) and a Fugitive Dust Control Plan (FDCP) as required by UDEQ, Department of Air Quality (DAQ) prior to initiating excavation activities. Implementation of the FDCP will be monitored by Terracon to ensure that appropriate dust suppression measures are implemented during impacted soil removal and there is no visible dust leaving the site. 6.5 Construction Dewatering Impacts to groundwater exceeding a screening level were not identified during site characterization. Construction dewatering may be required to facilitate site development. The General Contractor will obtain the necessary permits through UDEQ, Division of Water Quality (DWQ). If construction dewatering plans include an onsite containment pond, a construction plan will be submitted separately to DWQ for review and approval. All construction dewatering practices will be addressed in consultation with Lonestar, DERR, and DWQ prior to implementation. 7.0 Contingency Plans 7.1 Encapsulation of Soils It is the intent of the RAP that all impacted material be removed from the site. However, in the event that removal of all impacted material is not practicable, Lonestar and Terracon will work with DERR to determine if the material can be encapsulated on-site. This will be accomplished by placing the material beneath hard scaping (such as asphalt or concrete) or beneath at least 1.5 feet of clean fill, creating a repository. A geotextile or fabric marker barrier will be placed at the bottom of the repository and at the top of the impacted soil interval to delineate the boundaries. Repositories will be positioned such that the bottom of the impacted soil layer is above the seasonal high water level mark. The location and elevation of any repositories created at the site will be documented in the Site Management Plan. Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 11 7.2 Segregation / Characterization of Previously Unidentified Potentially Contaminated Soil If at any point during excavation of soils at the site, suspect soils are encountered that have not been previously characterized they will be segregated and evaluated. Soils exhibiting evidence of impacts by visual, olfactory evidence and/or field screening results above 10 parts per million (ppm), as determined by headspace analysis techniques using a PID, that was not previously identified will be excavated and stockpiled on impervious surface or polyethylene sheeting, covered with polyethylene sheeting at the end of each day, and characterized by laboratory analyses. Stockpiled suspect soil will be sampled at a frequency of one 5-point composite sample per 100 cubic yards of stockpiled soil. The soil may be analyzed for one or more of the following parameters to characterize the impact and use in disposal characterization: ■VOCs by EPA Method 8260 ■TPH-GRO, TPH-GRO, and/or TRPH by EPA Methods 8015, 8260B, or 9071B ■RCRA Metals by EPA Methods 6020 and 7471 ■Hexavalent chromium by EPA Method 7199 If impacted soils are encountered that report concentrations of contaminants above a cleanup level, samples may be collected at the extent of excavation to document concentrations of impacts remaining in soils. If significant soil impacts are identified on-site, Terracon and the DERR may revise the site’s sampling design to further delineate impacted areas. If impacted soils are to be left in-place, the location of the impacted interval will be surveyed and included in the final report to document the location. 7.3 Landfill Debris A historic landfill is located to the west of the site. Additionally, municipal landfill material may also be encountered during excavation and construction work. Landfill debris, if encountered, will be removed from the site. If required, to prevent odors emanating from the material prior to removal from the site, clean cover material will be placed over the debris on a temporary basis. 7.4 Unidentified Environmental Concerns In the event that unidentified environmental concerns are identified during excavation or other construction activities, work will stop in the area of the concern until Lonestar, Terracon, and regulatory agency personnel determine an appropriate course of action. Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 12 8.0 Post Remediation Documentation and Reporting 8.1 RAP Implementation Report A RAP Implementation Report will be generated to document the remedial activities conducted at the site. The report will document the location and results of all sampling conducted at the site, the extent of excavations, the location of any impacted materials remaining at the site, the final disposition of any impacted soils removed from the site, the PFAS sampling results, and the installation of the vapor barrier under the residential buildings. The report will include any deviations from the RAP. The report will also include a data quality discussion for confirmation samples collected during the RAP implementation and will provide documentation of off-site material disposition, such as weigh tickets for materials disposed of at the landfill. 8.2 Environmental Covenant and Site Management Plan Institutional Controls and Engineering Controls will be used to restrict access to soil, soil gas, and any impacted material that may remain on site. Lonestar will enter into an Environmental Covenant (EC) with the DERR that outlines the continuing obligations and activity and use limitations associated with any impacted material remaining at the site. The EC will reference a Site Management Plan (SMP) that will define any future site management requirements, which may include activity and use limitations and/or site inspection and reporting requirements. The Site Management Plan will include guidance for inspection and maintenance of the vapor barrier and details of any soil management needed. 9.0 Project Schedule Development of the site is anticipated to commence late Spring/Early Summer 2025. The initial phase will be removal of impacted material. Approximately 1 month has been set aside for this task. Grading and site preparations will begin after impacted material removal and are anticipated to take 1½ months. Construction of the residential townhomes is variable, but is expected to take 8–12 months. The final phase of construction is anticipated to be completed in approximately November 2026. Soil excavation and disposal activities will be documented in a report to be prepared within 60 days of completion of soil excavation activities. Documentation of vapor mitigation activities will also be included in this report or a separate report within 60 days of completion of building construction activities. Remedial Action Plan Lonestar — Former Anderson Auto | Spanish Fork, Utah April 22, 2025 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 13 10.0 References IHI Environmental (IHI). (2007, July 31). PHASE II SUBSURFACE INVESTIGATION REPORT, Anderson Auto Wrecking, 2890 South State Street, Springville, Utah. IHI Environmental (IHI). (2007, October 24). PHASE II SUPPLEMENTAL SUBSURFACE INVESTIGATION REPORT, Anderson Auto Wrecking, 2890 South State Street, Springville, Utah. Terracon. (2022, September 7). Phase I Environmental Site Assessment, Former Anderson Auto Wrecking, 2890 South State Street, Spanish Fork City, Utah County, Utah. Terracon. (2023, January 6). Phase II Environmental Site Assessment, Former Anderson Auto Wrecking, 2890 South State Street and 1215 North SR 51, Spanish Fork City, Utah County, Utah. Terracon. (2024, January 30, Revised 2024, March 28). Quality Assurance Project Plan, Lonestar Properties LLC — Former Anderson Auto Wrecking Site, 2890 South State Street, Spanish Fork, Utah County, Utah. Terracon. (2024, August 24, Revised 2024, December 18). Site Characterization, Lonestar Properties LLC — Former Anderson Auto Wrecking Site, 2890 South State Street, Spanish Fork, Utah. Utah Department of Environmental Quality, Division of Environmental Response and Remediation (DERR). (2021, November). SITE INSPECTION ANALYTICAL RESULTS REPORT, Anderson Auto Wrecking Company, Utah County, Utah, UTN000802773. Appendix A Exhibits G: \ 0 0 6 1 \ 6 1 2 2 7 1 8 6 _ A n d e r s o n A u t o \ 6 1 2 2 7 1 8 6 _ A n d e r s o n A u t o . a p r x Exhibit terracon.comPH. 801-545-8500 6952 S High Tech Dr, Ste B Midvale, UT Reviewed By: Drawn By: Apr 2025 Date: 61237032 Project No.: Former Anderson Auto Wrecking 2890 South State Street Spanish Fork, Utah Site Diagram with Redevelopment Plans 2 DD AST DATA SOURCES: ESRI - Basemaps @A @A @A @A @A @A @A @A @A @A @A B-3 B-4 B-5 B-6 B-7 B-8 B-9 B-12 B-13 B-14 B-15 SG-3 SG-4 SG-6 SG-9 SS-3 SS-5 SS-4 SS-6 SS-8 SS-9 SS-10 SS-11 SS-7 SS-1 SS-2 SS-12 SS-13 PFAS-1 0 80 16040 Feet ³ ³Proposed PFAS Sample Location Surface Soil Sample (2024) @A 2022 Soil Boring 2022 Vapor Point Historical Crusher Area Approximate Site Boundary G: \ 0 0 6 1 \ 6 1 2 2 7 1 8 6 _ A n d e r s o n A u t o \ 6 1 2 2 7 1 8 6 _ A n d e r s o n A u t o . a p r x Exhibit terracon.comPH. 801-545-8500 6952 S High Tech Dr, Ste B Midvale, UT Reviewed By: Drawn By: Apr 2025 Date: 61237032 Project No.: Former Anderson Auto Wrecking 2890 South State Street Spanish Fork, Utah Metals Exceedances in Soil 3 ABA AST @A @A @A @A @A @A @A @A @A @A @A B-3 B-4 B-5 B-6 B-7 B-8 B-9 B-12 B-13 B-14 B-15 SG-3 SG-4 SG-6 SG-9 SS-3 SS-5 SS-4 SS-6 SS-8 SS-9 SS-10 SS-11 SS-7 SS-1 SS-2 SS-12 SS-13 0 80 16040 Feet ³ ³Surface Soil Sample (2024) Previous Sample Location @A 2022 Soil Boring 2022 Vapor Point Historical Crusher Area Approximate Site Boundary Exceed ISL Tier 1 Metals Exceedances in Soil Residential RSL G: \ 0 0 6 1 \ 6 1 2 2 7 1 8 6 _ A n d e r s o n A u t o \ 6 1 2 2 7 1 8 6 _ A n d e r s o n A u t o . a p r x Exhibit terracon.comPH. 801-545-8500 6952 S High Tech Dr, Ste B Midvale, UT Reviewed By: Drawn By: Apr 2025 Date: 61237032 Project No.: Former Anderson Auto Wrecking 2890 South State Street Spanish Fork, Utah Petroleum Hydrocarbon Exceedances in Soil 4 ABA AST DATA SOURCES: ESRI - Basemaps @A @A @A @A @A @A @A @A @A @A @A B-3 B-4 B-5 B-6 B-7 B-8 B-9 B-12 B-13 B-14 B-15 SG-3 SG-4 SG-6 SG-9 SS-3 SS-5 SS-4 SS-6 SS-8 SS-9 SS-10 SS-11 SS-7 SS-1 SS-2 SS-12 SS-13 0 80 16040 Feet ³ ³Surface Soil Sample (2024) Previous Sample Location @A 2022 Soil Boring 2022 Vapor Point Historical Crusher Area Approximate Site Boundary Petroleum Hydrocarbon Exceedances in Soil ISL Tier 1 G: \ 0 0 6 1 \ 6 1 2 2 7 1 8 6 _ A n d e r s o n A u t o \ 6 1 2 2 7 1 8 6 _ A n d e r s o n A u t o . a p r x Exhibit terracon.comPH. 801-545-8500 6952 S High Tech Dr, Ste B Midvale, UT Reviewed By: Drawn By: Apr 2025 Date: 61237032 Project No.: Former Anderson Auto Wrecking 2890 South State Street Spanish Fork, Utah VOC Exceedances in Soil Gas 5 ABA AST @A @A @A @A @A @A @A @A @A @A @A B-3 B-4 B-5 B-6 B-7 B-8 B-9 B-12 B-13 B-14 B-15 SG-3 SG-4 SG-6 SG-9 SS-3 SS-5 SS-4 SS-6 SS-8 SS-9 SS-10 SS-11 SS-7 SS-1 SS-2 SS-12 SS-13 0 80 16040 Feet ³ ³Surface Soil Sample (2024) Previous Sample Location @A 2022 Soil Boring 2022 Vapor Point Approximate Site Boundary Historical Crusher Area VOC Exceedances in Soil Gas Residential VISL G: \ 0 0 6 1 \ 6 1 2 2 7 1 8 6 _ A n d e r s o n A u t o \ 6 1 2 2 7 1 8 6 _ A n d e r s o n A u t o . a p r x Exhibit terracon.comPH. 801-545-8500 6952 S High Tech Dr, Ste B Midvale, UT Reviewed By: Drawn By: Apr 2025 Date: 61237032 Project No.: Former Anderson Auto Wrecking 2890 South State Street Spanish Fork, Utah RAP Excavation and PFAS Sample Locations 6 DD AST DATA SOURCES: ESRI - Basemaps @A @A @A @A @A @A @A @A @A @A @A B-3 B-4 B-5 B-6 B-7 B-8 B-9 B-12 B-13 B-14 B-15 SG-3 SG-4 SG-6 SG-9 SS-3 SS-5 SS-4 SS-6 SS-8 SS-9 SS-10 SS-11 SS-7 SS-1 SS-2 SS-12 SS-13 PFAS-1 0 80 16040 Feet ³ ³Proposed PFAS Sample Location Proposed Excavation Area Surface Soil Sample (2024) @A 2022 Soil Boring 2022 Vapor Point Approximate Soil Stockpile Area Historical Crusher Area Approximate Site Boundary Fill and Native Soil: Lead (fill) Hexavalent Chromium (fill) TPH-DRO (fill and native) TRPH (fill and native) Soil Gas Groundwater: No contamination noted.Groundwater Soil Gas: Benzene Construction Worker Dermal Contact Ingestion Inhalation CONCEPTUAL SITE MODEL 6952 S High Tech Drive Midvale, Utah 84047 61237032 Employee Resident Current Use/Future Use Former Anderson Auto Wrecking 2890 South State Street Spanish Fork, Utah Project Manager: Drawn by: Checked by: Approved by: AST AA AA AST Exhibit 7 April 2025 Scale: Project No. File Name: Date: none 7 Exhibit RECEPTORS Complete pathway Incomplete pathway Soil Dermal Contact SOURCE INTERACTION Contamination Exposure Medium Exposure Route Ingestion Appendix B Analytical Data Tables Table 1 - Metals in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL ARSENIC 7440-38-2 6010B mg/kg 0.68 3 9.79 0.532 2.05 6.21 0.533 2.06 3.36 0.534 2.06 5.13 0.52 2.01 7.87 0.528 2.04 BARIUM 7440-39-3 6010B mg/kg 15,000 220,000 171 J6 O1 0.0875 0.513 148 0.0877 0.515 160 0.0878 0.515 67.7 0.0855 0.502 190 0.0868 0.509 CADMIUM 7440-43-9 6010B mg/kg 7.14 99.7 0.804 0.0484 0.513 0.635 0.0485 0.515 1.38 0.0485 0.515 0.343 J 0.0473 0.502 0.499 J 0.048 0.509 CHROMIUM 7440-47-3 6010B mg/kg NE NE 19.1 O1 0.137 1.03 36.2 0.137 1.03 23 0.137 1.03 15.8 0.133 1 21.1 0.135 1.02 HEXAVALENT CHROMIUM 18540-29-9 7199 mg/kg 0.95 20 <1.03 J6 0.262 1.03 <1.03 0.263 1.03 <1.03 0.263 1.03 <1.00 0.256 1 <1.02 0.26 1.02 LEAD 7439-92-1 6010B mg/kg 200 800 30.7 0.214 0.513 35.3 0.214 0.515 59 0.214 0.515 12.8 0.209 0.502 16.1 0.212 0.509 MERCURY 7439-97-6 7471A mg/kg 11 45.6 <0.0411 0.0185 0.0411 0.02 J 0.0185 0.0412 0.0312 J 0.0185 0.041 <0.0401 0.0181 0.0401 <0.0407 0.0183 0.0407 SELENIUM 7782-49-2 6010B mg/kg 390 5,800 <2.05 0.785 2.05 <2.06 0.787 2.06 <2.06 0.787 2.06 <2.01 0.767 2.01 <2.04 0.778 2.04 SILVER 7440-22-4 6010B mg/kg 390 5,800 <1.03 0.13 1.03 <1.03 0.131 1.03 <1.03 0.131 1.03 <1.00 0.127 1 <1.02 0.129 1.02 Qualifiers (Q): mg/kg:Milligrams per kilogram. <: Less than Reported Detection Limit (RDL). Bold value exceeds Method Detection Limit (MDL). NE - Not Established Color shaded value exceeds screening level. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. L1748255-02 Date Collected L1748255-01 6/18/2024 SS-1 SS-2 6/18/2024 J - The identification of the analyte is acceptable; the reported value is an estimate. Lab Sample ID Client Sample ID EPA RSL:Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (November 2024; TR=1E-06; THQ=1.0). B - The same analyte is found in the associated blank. J6 - The sample matrix interfered with the ability to make any accurate determination; spike value is low. O1 - The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. L1748255-03 L1748255-04 L1748255-05 6/18/2024 6/18/2024 6/18/2024 SS-3 SS-4 SS-5 Page 1 of 3 Table 1 - Metals in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ARSENIC 7440-38-2 6010B mg/kg 0.68 3 BARIUM 7440-39-3 6010B mg/kg 15,000 220,000 CADMIUM 7440-43-9 6010B mg/kg 7.14 99.7 CHROMIUM 7440-47-3 6010B mg/kg NE NE HEXAVALENT CHROMIUM 18540-29-9 7199 mg/kg 0.95 20 LEAD 7439-92-1 6010B mg/kg 200 800 MERCURY 7439-97-6 7471A mg/kg 11 45.6 SELENIUM 7782-49-2 6010B mg/kg 390 5,800 SILVER 7440-22-4 6010B mg/kg 390 5,800 Qualifiers (Q): mg/kg:Milligrams per kilogram. <: Less than Reported Detection Limit (RDL). Bold value exceeds Method Detection Limit (MDL). NE - Not Established Color shaded value exceeds screening level. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Date Collected J - The identification of the analyte is acceptable; the reported value is an estimate. Lab Sample ID Client Sample ID EPA RSL:Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (November 2024; TR=1E-06; THQ=1.0). B - The same analyte is found in the associated blank. J6 - The sample matrix interfered with the ability to make any accurate determination; spike value is low. O1 - The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 4.6 0.529 2.04 6.62 0.524 2.02 13.1 0.525 2.03 6.37 0.524 2.02 6.92 0.525 2.03 107 0.087 0.511 70.3 0.0862 0.506 114 0.0863 0.507 197 0.0861 0.505 191 0.0863 0.506 0.663 0.0481 0.511 0.458 J 0.0476 0.506 0.989 0.0477 0.507 1.84 0.0476 0.505 0.962 0.0477 0.506 15.4 0.136 1.02 14.7 0.135 1.01 17 0.135 1.01 30.2 0.134 1.01 26.9 0.135 1.01 <1.02 0.26 1.02 <1.01 J6 0.258 1.01 0.335 J 0.258 1.01 <1.01 0.258 1.01 <1.01 0.258 1.01 34.8 0.212 0.511 11 0.21 0.506 48 0.211 0.507 108 0.21 0.505 55.3 0.211 0.506 0.0243 J 0.0184 0.0409 <0.0405 0.0182 0.0405 <0.0405 0.0182 0.0405 0.0376 J 0.0182 0.0404 0.0207 J 0.0182 0.0405 <2.04 0.78 2.04 <2.02 0.773 2.02 <2.03 0.774 2.03 <2.02 0.772 2.02 <2.03 0.774 2.03 <1.02 0.13 1.02 <1.01 0.128 1.01 <1.01 0.129 1.01 <1.01 0.128 1.01 <1.01 0.129 1.01 L1748255-11 SS-11 6/18/2024 SS-7 6/18/2024 6/18/2024 L1748255-09 SS-9 6/18/2024 L1748255-07 L1748255-08 SS-8 L1748255-06 6/18/2024 SS-6 Page 2 of 3 Table 1 - Metals in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ARSENIC 7440-38-2 6010B mg/kg 0.68 3 BARIUM 7440-39-3 6010B mg/kg 15,000 220,000 CADMIUM 7440-43-9 6010B mg/kg 7.14 99.7 CHROMIUM 7440-47-3 6010B mg/kg NE NE HEXAVALENT CHROMIUM 18540-29-9 7199 mg/kg 0.95 20 LEAD 7439-92-1 6010B mg/kg 200 800 MERCURY 7439-97-6 7471A mg/kg 11 45.6 SELENIUM 7782-49-2 6010B mg/kg 390 5,800 SILVER 7440-22-4 6010B mg/kg 390 5,800 Qualifiers (Q): mg/kg:Milligrams per kilogram. <: Less than Reported Detection Limit (RDL). Bold value exceeds Method Detection Limit (MDL). NE - Not Established Color shaded value exceeds screening level. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Date Collected J - The identification of the analyte is acceptable; the reported value is an estimate. Lab Sample ID Client Sample ID EPA RSL:Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (November 2024; TR=1E-06; THQ=1.0). B - The same analyte is found in the associated blank. J6 - The sample matrix interfered with the ability to make any accurate determination; spike value is low. O1 - The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 3.94 0.522 2.01 4.49 0.546 2.11 7.67 0.527 2.04 3.87 0.521 2.01 185 0.0858 0.504 228 0.0899 0.527 200 0.0867 0.509 175 0.0857 0.503 1.57 0.0474 0.504 1.78 0.0497 0.527 0.415 B J 0.0479 0.509 1.27 0.0474 0.503 45.5 0.134 1.01 30.9 0.14 1.05 18.2 0.135 1.02 49.9 0.134 1.01 <1.01 0.257 1.01 <1.05 0.269 1.05 <1.02 0.259 1.02 <1.01 0.257 1.01 112 0.21 0.504 162 0.219 0.527 13.2 0.212 0.509 141 0.209 0.503 0.0346 J 0.0181 0.0403 0.0421 J 0.019 0.0422 <0.0407 0.0183 0.0407 0.0279 J 0.0181 0.0403 <2.01 0.77 2.01 <2.11 0.806 2.11 <2.04 0.777 2.04 1.03 J 0.769 2.01 <1.01 0.128 1.01 <1.05 0.134 1.05 <1.02 0.129 1.02 1.47 0.128 1.01 SS-50 6/18/2024 SS-120 6/18/2024 L1748255-12 L1748255-13 L1748255-14 L1748255-16 SS-12 6/18/2024 SS-13 6/18/2024 Page 3 of 3 Table 2 - VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 <0.513 0.188 0.513 <0.515 0.188 0.515 0.247 J 0.189 0.515 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 113 J3 J5 7.9 41.1 39 3.96 20.6 86.1 0.792 4.12 TRPH NE 9071B mg/kg NE NE 1000 10000 769 J3 J5 J6 33.9 103 689 34 103 246 34 103 ACETONE 67-64-1 8260B mg/kg 70000 1100000 NE NE 0.0346 J J3 J4 0.0213 0.0513 0.0514 J J4 0.0213 0.0515 0.108 0.0213 0.0515 ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE <0.0103 J3 0.00207 0.0103 <0.0103 0.00208 0.0103 <0.0103 0.00208 0.0103 BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 0.00173 J3 0.00039 0.001 0.00243 0.00039 0.001 0.00737 0.00039 0.001 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE <0.00103 J3 J6 0.00028 0.001 <0.00103 0.00028 0.001 <0.00103 0.00028 0.001 BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE <0.00103 J3 0.00074 0.001 <0.00103 0.00075 0.001 <0.00103 J4 0.00075 0.001 BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE <0.00103 J3 0.00044 0.001 <0.00103 0.00044 0.001 <0.00103 0.00044 0.001 BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE <0.00513 J3 J5 0.0012 0.0051 <0.00515 0.0012 0.0052 <0.00515 0.00121 0.0052 N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE <0.00103 J3 J6 0.00027 0.001 <0.00103 0.00027 0.001 <0.00103 0.00027 0.001 SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE <0.00103 J3 J6 0.00021 0.001 <0.00103 0.00021 0.001 <0.00103 0.00021 0.001 TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE <0.00103 J3 J6 0.00021 0.001 <0.00103 0.00021 0.001 <0.00103 0.00021 0.001 CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE <0.00103 J3 0.00026 0.001 <0.00103 0.00026 0.001 <0.00103 0.00026 0.001 CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE <0.00103 J3 J6 0.0002 0.001 <0.00103 0.0002 0.001 <0.00103 0.0002 0.001 CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE <0.00103 J3 0.00023 0.001 <0.00103 0.00023 0.001 <0.00103 0.00023 0.001 CHLOROETHANE 75-00-3 8260B mg/kg 5400 23000 NE NE <0.00513 J3 0.00103 0.0051 <0.00515 0.00103 0.0052 <0.00515 0.00103 0.0052 CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE <0.00513 J3 0.00106 0.0051 <0.00515 0.00106 0.0052 <0.00515 0.00106 0.0052 CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE <0.00257 J3 0.00067 0.0026 <0.00257 0.00067 0.0026 <0.00258 0.00067 0.0026 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE <0.00103 J3 J6 0.00023 0.001 <0.00103 0.00023 0.001 <0.00103 0.00023 0.001 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE <0.00103 J3 J6 0.00071 0.001 <0.00103 0.00071 0.001 <0.00103 0.00071 0.001 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE <0.00513 J3 0.00195 0.0051 <0.00515 0.00196 0.0052 <0.00515 0.00196 0.0052 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE <0.00103 J3 0.00026 0.001 <0.00103 0.00026 0.001 <0.00103 0.00026 0.001 DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE <0.00103 J3 0.00036 0.001 <0.00103 0.00036 0.001 <0.00103 J4 0.00036 0.001 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE <0.00103 J3 J6 0.00044 0.001 <0.00103 0.00044 0.001 <0.00103 0.00044 0.001 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE <0.00103 J3 J6 0.00062 0.001 <0.00103 0.00062 0.001 <0.00103 0.00062 0.001 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE <0.00103 J3 J6 0.00085 0.001 <0.00103 0.00086 0.001 <0.00103 0.00086 0.001 DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE <0.00513 J3 0.0003 0.0051 <0.00515 0.0003 0.0052 <0.00515 0.0003 0.0052 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE <0.00103 J3 0.00028 0.001 <0.00103 0.00028 0.001 <0.00103 0.00028 0.001 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE <0.00103 J3 0.00046 0.001 <0.00103 0.00046 0.001 <0.00103 0.00046 0.001 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE <0.00103 J3 0.00037 0.001 <0.00103 0.00037 0.001 <0.00103 0.00037 0.001 CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 63 370 NE NE <0.00103 J3 0.00049 0.001 <0.00103 0.00049 0.001 <0.00103 0.00049 0.001 TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE <0.00103 J3 0.00051 0.001 <0.00103 0.00052 0.001 <0.00103 0.00052 0.001 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE <0.00103 J3 0.00017 0.001 <0.00103 0.00017 0.001 <0.00103 0.00017 0.001 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE <0.00103 J3 0.00039 0.001 <0.00103 0.00039 0.001 <0.00103 0.00039 0.001 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE <0.00103 J3 0.00023 0.001 <0.00103 0.00023 0.001 <0.00103 0.00023 0.001 CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE <0.00103 J3 0.00044 0.001 <0.00103 0.00044 0.001 <0.00103 0.00044 0.001 TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE <0.00103 J3 0.00069 0.001 <0.00103 0.0007 0.001 <0.00103 0.0007 0.001 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE <0.00103 J3 0.00039 0.001 <0.00103 0.00039 0.001 <0.00103 0.00039 0.001 DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE <0.00103 J3 0.00023 0.001 <0.00103 0.00023 0.001 <0.00103 0.00023 0.001 ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 0.00082 J J3 0.00031 0.001 0.000912 J 0.00031 0.001 0.00282 0.00031 0.001 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE <0.00103 J3 J6 0.00035 0.001 <0.00103 0.00035 0.001 <0.00103 0.00035 0.001 ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE <0.00103 J3 J6 0.00044 0.001 <0.00103 0.00044 0.001 <0.00103 0.00044 0.001 P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE <0.00103 J3 J6 0.00021 0.001 <0.00103 0.00021 0.001 <0.00103 0.00021 0.001 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE 0.00536 J J3 0.00481 0.0103 0.00702 J 0.00482 0.0103 0.0195 0.00482 0.0103 L1748255-02 L1748255-03Lab Sample ID L1748255-01 Date Collected 6/18/2024 6/18/2024 6/18/2024 Client Sample ID SS-1 SS-2 SS-3 Page 1 of 10 Table 2 - VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL L1748255-02 L1748255-03Lab Sample ID L1748255-01 Date Collected 6/18/2024 6/18/2024 6/18/2024 Client Sample ID SS-1 SS-2 SS-3 METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 0.00136 B J J3 J4 0.00103 0.0051 0.00108 B J J4 0.00103 0.0052 0.00339 B J 0.00103 0.0052 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE 0.00143 J J3 0.00098 0.0103 0.00229 J 0.00098 0.0103 0.00369 J 0.00098 0.0103 METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 <0.00103 J3 0.00036 0.001 <0.00103 0.00036 0.001 <0.00103 0.00036 0.001 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 <0.00513 J3 J6 0.00511 0.0051 <0.00515 0.00513 0.0052 <0.00515 0.00513 0.0052 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE <0.00103 J3 J6 0.00021 0.001 <0.00103 0.00021 0.001 0.000418 J 0.00021 0.001 STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE <0.00103 J3 J6 0.00023 0.001 <0.00103 0.00023 0.001 <0.00103 0.00023 0.001 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE <0.00103 J3 0.0003 0.001 <0.00103 0.00031 0.001 <0.00103 0.00031 0.001 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE <0.00103 J3 0.00024 0.001 <0.00103 0.00024 0.001 <0.00103 0.00024 0.001 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE <0.00103 J3 0.00044 0.001 <0.00103 0.00044 0.001 <0.00103 0.00044 0.001 TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE <0.00103 J3 0.00033 0.001 <0.00103 0.00034 0.001 <0.00103 0.00034 0.001 TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 0.00209 J J3 0.00126 0.0051 0.00311 J 0.00127 0.0052 0.00778 0.00127 0.0052 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE <0.00103 J3 J6 0.00031 0.001 <0.00103 0.00032 0.001 <0.00103 0.00032 0.001 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE <0.00103 J3 J6 0.0004 0.001 <0.00103 0.0004 0.001 <0.00103 0.0004 0.001 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE <0.00103 J3 0.00038 0.001 <0.00103 0.00038 0.001 <0.00103 0.00038 0.001 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE <0.00103 J3 0.00044 0.001 <0.00103 0.00044 0.001 <0.00103 0.00044 0.001 TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE <0.00103 J3 0.00021 0.001 <0.00103 0.00021 0.001 <0.00103 0.00021 0.001 TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE <0.00513 J3 0.00037 0.0051 <0.00515 0.00037 0.0052 <0.00515 0.00037 0.0052 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE <0.00257 J3 0.00025 0.0026 <0.00257 0.00025 0.0026 <0.00258 0.00025 0.0026 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 0.00031 J J3 J6 0.00022 0.001 0.000322 J 0.00022 0.001 0.000786 J 0.00022 0.001 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE <0.00103 J3 J6 0.0003 0.001 <0.00103 0.0003 0.001 0.000353 J 0.0003 0.001 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE <0.00103 J3 J6 0.00027 0.001 <0.00103 0.00027 0.001 0.000284 J 0.00027 0.001 VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE <0.00103 J3 0.00023 0.001 <0.00103 0.00023 0.001 <0.00103 0.00023 0.001 XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 0.00085 J J3 J6 0.00051 0.0031 0.0011 J 0.00052 0.0031 0.00293 J 0.00052 0.0031 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. Bold value exceeds Method Detection Limit (MDL). EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2024; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J4: The associated batch QC was outside the established quality control range for accuracy J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. Page 2 of 10 Table 2 - VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 70000 1100000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 5400 23000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 63 370 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Lab Sample ID Date Collected Client Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL <0.502 0.184 0.502 <0.509 0.186 0.509 <0.633 0.232 0.633 179 J 38.6 201 32.3 J 7.83 40.7 29.5 3.93 20.4 9460 331 1000 90.7 J 33.6 102 531 33.7 102 0.148 J4 0.0208 0.0502 <0.0509 J4 0.0211 0.0509 0.0566 J J4 0.0262 0.0633 <0.0100 0.00203 0.01 <0.0102 0.00206 0.0102 <0.0127 0.00255 0.0127 0.00167 0.00038 0.001 0.00473 0.00038 0.001 0.00443 0.00048 0.0013 <0.00100 0.00028 0.001 <0.00102 0.00028 0.001 <0.00127 0.00035 0.0013 <0.00100 0.00073 0.001 <0.00102 0.00074 0.001 <0.00127 0.00092 0.0013 <0.00100 0.00043 0.001 <0.00102 0.00043 0.001 <0.00127 0.00054 0.0013 <0.00502 0.00117 0.005 <0.00509 0.00119 0.0051 <0.00633 0.00148 0.0063 <0.00100 0.00026 0.001 <0.00102 0.00026 0.001 <0.00127 0.00033 0.0013 <0.00100 0.0002 0.001 <0.00102 0.00021 0.001 <0.00127 0.00025 0.0013 <0.00100 0.00021 0.001 <0.00102 0.00021 0.001 <0.00127 0.00026 0.0013 <0.00100 0.00025 0.001 <0.00102 0.00025 0.001 <0.00127 0.00032 0.0013 <0.00100 0.00019 0.001 <0.00102 0.0002 0.001 <0.00127 0.00024 0.0013 <0.00100 0.00023 0.001 <0.00102 0.00023 0.001 <0.00127 0.00028 0.0013 <0.00502 0.001 0.005 <0.00509 0.00102 0.0051 <0.00633 0.00127 0.0063 <0.00502 0.00103 0.005 <0.00509 0.00105 0.0051 <0.00633 0.00131 0.0063 <0.00251 0.00065 0.0025 <0.00255 0.00066 0.0026 <0.00317 0.00082 0.0032 <0.00100 0.00023 0.001 <0.00102 0.00023 0.001 <0.00127 0.00029 0.0013 <0.00100 0.00069 0.001 <0.00102 0.0007 0.001 <0.00127 0.00088 0.0013 <0.00502 0.00191 0.005 <0.00509 0.00193 0.0051 <0.00633 0.00241 0.0063 <0.00100 0.00025 0.001 <0.00102 0.00026 0.001 <0.00127 0.00032 0.0013 <0.00100 0.00035 0.001 <0.00102 0.00036 0.001 <0.00127 0.00044 0.0013 <0.00100 0.00043 0.001 <0.00102 0.00043 0.001 <0.00127 0.00054 0.0013 <0.00100 0.0006 0.001 <0.00102 0.00061 0.001 <0.00127 0.00076 0.0013 <0.00100 0.00083 0.001 <0.00102 0.00085 0.001 <0.00127 0.00105 0.0013 <0.00502 0.00029 0.005 <0.00509 0.00029 0.0051 <0.00633 0.00036 0.0063 <0.00100 0.00027 0.001 <0.00102 0.00027 0.001 <0.00127 0.00034 0.0013 <0.00100 0.00045 0.001 <0.00102 0.00046 0.001 <0.00127 0.00057 0.0013 <0.00100 0.00036 0.001 <0.00102 0.00036 0.001 <0.00127 0.00045 0.0013 <0.00100 0.00048 0.001 <0.00102 0.00048 0.001 <0.00127 0.0006 0.0013 <0.00100 0.0005 0.001 <0.00102 0.00051 0.001 <0.00127 0.00063 0.0013 <0.00100 0.00017 0.001 <0.00102 0.00017 0.001 <0.00127 0.00021 0.0013 <0.00100 0.00038 0.001 <0.00102 0.00038 0.001 <0.00127 0.00048 0.0013 <0.00100 0.00023 0.001 <0.00102 0.00023 0.001 <0.00127 0.00029 0.0013 <0.00100 0.00043 0.001 <0.00102 0.00043 0.001 <0.00127 0.00054 0.0013 <0.00100 0.00068 0.001 <0.00102 0.00069 0.001 <0.00127 0.00086 0.0013 <0.00100 0.00038 0.001 <0.00102 0.00038 0.001 <0.00127 0.00048 0.0013 <0.00100 0.00022 0.001 <0.00102 0.00023 0.001 <0.00127 0.00028 0.0013 0.00068 J 0.0003 0.001 0.00303 0.00031 0.001 0.00172 0.00038 0.0013 <0.00100 0.00034 0.001 <0.00102 0.00035 0.001 <0.00127 0.00043 0.0013 <0.00100 0.00043 0.001 <0.00102 0.00043 0.001 <0.00127 0.00054 0.0013 <0.00100 0.00021 0.001 <0.00102 0.00021 0.001 <0.00127 0.00026 0.0013 0.0294 0.0047 0.01 0.00842 J 0.00477 0.0102 0.0112 J 0.00592 0.0127 L1748255-04 L1748255-06 SS-5 SS-6 L1748255-05 6/18/2024 6/18/2024 6/18/2024 SS-4 Page 3 of 10 Table 2 - VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Lab Sample ID Date Collected Client Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. Bold value exceeds Method Detection Limit (MDL). EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2024; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J4: The associated batch QC was outside the established quality control range for accuracy J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL L1748255-04 L1748255-06 SS-5 SS-6 L1748255-05 6/18/2024 6/18/2024 6/18/2024 SS-4 0.00202 B J J4 0.001 0.005 0.00203 B J J4 0.00102 0.0051 0.0017 B J J4 0.00127 0.0063 0.0037 J 0.00095 0.01 0.00144 J 0.00097 0.0102 0.00282 J 0.00121 0.0127 <0.00100 0.00035 0.001 <0.00102 0.00036 0.001 <0.00127 0.00044 0.0013 <0.00502 0.005 0.005 <0.00509 0.00507 0.0051 <0.00633 0.00631 0.0063 <0.00100 0.00021 0.001 0.000392 J 0.00021 0.001 <0.00127 0.00026 0.0013 <0.00100 0.00022 0.001 <0.00102 0.00023 0.001 <0.00127 0.00028 0.0013 <0.00100 0.0003 0.001 <0.00102 0.0003 0.001 <0.00127 0.00038 0.0013 <0.00100 0.00023 0.001 <0.00102 0.00024 0.001 <0.00127 0.00029 0.0013 <0.00100 0.00043 0.001 <0.00102 0.00043 0.001 <0.00127 0.00054 0.0013 <0.00100 0.00033 0.001 <0.00102 0.00033 0.001 <0.00127 0.00041 0.0013 0.00247 J 0.00123 0.005 0.00655 0.00125 0.0051 0.00496 J 0.00156 0.0063 <0.00100 0.00031 0.001 <0.00102 0.00031 0.001 <0.00127 0.00039 0.0013 <0.00100 0.00039 0.001 <0.00102 0.0004 0.001 <0.00127 0.00049 0.0013 <0.00100 0.00037 0.001 <0.00102 0.00038 0.001 <0.00127 0.00047 0.0013 <0.00100 0.00043 0.001 <0.00102 0.00043 0.001 <0.00127 0.00054 0.0013 <0.00100 0.0002 0.001 <0.00102 0.0002 0.001 <0.00127 0.00025 0.0013 <0.00502 0.00036 0.005 <0.00509 0.00036 0.0051 <0.00633 0.00045 0.0063 <0.00251 0.00025 0.0025 <0.00255 0.00025 0.0026 <0.00317 0.00031 0.0032 <0.00100 0.00021 0.001 0.000622 J 0.00022 0.001 0.00056 J 0.00027 0.0013 <0.00100 0.00029 0.001 <0.00102 0.00029 0.001 <0.00127 0.00036 0.0013 <0.00100 0.00027 0.001 <0.00102 0.00027 0.001 <0.00127 0.00034 0.0013 <0.00100 0.00023 0.001 <0.00102 0.00023 0.001 <0.00127 0.00029 0.0013 0.00092 J 0.0005 0.003 0.00223 J 0.00051 0.0031 0.00201 J 0.00063 0.0038 Page 4 of 10 Table 2 - VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 70000 1100000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 5400 23000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 63 370 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Lab Sample ID Date Collected Client Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL <0.506 0.185 0.506 <0.507 0.185 0.507 <0.505 0.185 0.505 22.9 3.89 20.2 24.2 3.9 20.3 59.6 3.89 20.2 362 33.4 101 748 33.4 101 368 33.4 101 0.0457 J J4 0.0209 0.0506 0.0616 J4 0.021 0.0507 0.101 J4 0.0209 0.0505 <0.0101 0.00204 0.0101 <0.0101 0.00205 0.0101 <0.0101 0.00204 0.0101 0.000725 J 0.00038 0.001 0.00201 0.00038 0.001 0.00226 0.000379 0.00101 <0.00101 0.00028 0.001 <0.00101 0.00028 0.001 <0.00101 0.000278 0.00101 <0.00101 0.00073 0.001 <0.00101 0.00074 0.001 <0.00101 0.000733 0.00101 <0.00101 0.00043 0.001 <0.00101 0.00043 0.001 <0.00101 0.000429 0.00101 <0.00506 0.00118 0.0051 <0.00507 0.00119 0.0051 <0.00505 0.00118 0.00505 <0.00101 0.00026 0.001 <0.00101 0.00026 0.001 <0.00101 0.000261 0.00101 <0.00101 0.0002 0.001 <0.00101 0.0002 0.001 <0.00101 0.000203 0.00101 <0.00101 0.00021 0.001 <0.00101 0.00021 0.001 <0.00101 0.000208 0.00101 <0.00101 0.00025 0.001 <0.00101 0.00025 0.001 <0.00101 0.000251 0.00101 <0.00101 0.00019 0.001 <0.00101 0.0002 0.001 <0.00101 0.000194 0.00101 <0.00101 0.00023 0.001 <0.00101 0.00023 0.001 <0.00101 0.000226 0.00101 <0.00506 0.00101 0.0051 <0.00507 0.00101 0.0051 <0.00505 0.00101 0.00505 <0.00506 0.00104 0.0051 <0.00507 0.00104 0.0051 <0.00505 0.00104 0.00505 <0.00253 0.00066 0.0025 <0.00253 0.00066 0.0025 <0.00253 0.000657 0.00253 <0.00101 0.00023 0.001 <0.00101 0.00023 0.001 <0.00101 0.000227 0.00101 <0.00101 0.0007 0.001 <0.00101 0.0007 0.001 <0.00101 0.000699 0.00101 <0.00506 0.00192 0.0051 <0.00507 0.00193 0.0051 <0.00505 0.00192 0.00505 <0.00101 0.00025 0.001 <0.00101 0.00025 0.001 <0.00101 0.000253 0.00101 <0.00101 0.00035 0.001 <0.00101 0.00036 0.001 <0.00101 0.000354 0.00101 <0.00101 0.00043 0.001 <0.00101 0.00043 0.001 <0.00101 0.00043 0.00101 <0.00101 0.00061 0.001 <0.00101 0.00061 0.001 <0.00101 0.000607 0.00101 <0.00101 0.00084 0.001 <0.00101 0.00084 0.001 <0.00101 0.000839 0.00101 <0.00506 0.00029 0.0051 <0.00507 0.00029 0.0051 <0.00505 0.00029 0.00505 <0.00101 0.00027 0.001 <0.00101 0.00027 0.001 <0.00101 0.000271 0.00101 <0.00101 0.00046 0.001 <0.00101 0.00046 0.001 <0.00101 0.000455 0.00101 <0.00101 0.00036 0.001 <0.00101 0.00036 0.001 <0.00101 0.000359 0.00101 <0.00101 0.00048 0.001 <0.00101 0.00048 0.001 <0.00101 0.00048 0.00101 <0.00101 0.00051 0.001 <0.00101 0.00051 0.001 <0.00101 0.000505 0.00101 <0.00101 0.00017 0.001 <0.00101 0.00017 0.001 <0.00101 0.000166 0.00101 <0.00101 0.00038 0.001 <0.00101 0.00038 0.001 <0.00101 0.000379 0.00101 <0.00101 0.00023 0.001 <0.00101 0.00023 0.001 <0.00101 0.000227 0.00101 <0.00101 0.00043 0.001 <0.00101 0.00043 0.001 <0.00101 0.00043 0.00101 <0.00101 0.00068 0.001 <0.00101 0.00068 0.001 <0.00101 0.000682 0.00101 <0.00101 0.00038 0.001 <0.00101 0.00038 0.001 <0.00101 0.000379 0.00101 <0.00101 0.00022 0.001 <0.00101 0.00022 0.001 <0.00101 0.000223 0.00101 0.000326 J 0.0003 0.001 0.00075 J 0.0003 0.001 0.00115 0.000303 0.00101 <0.00101 0.00035 0.001 <0.00101 0.00035 0.001 <0.00101 0.000346 0.00101 <0.00101 0.00043 0.001 <0.00101 0.00043 0.001 <0.00101 0.00043 0.00101 <0.00101 0.00021 0.001 <0.00101 0.00021 0.001 <0.00101 0.000206 0.00101 0.00789 J 0.00473 0.0101 0.0104 0.00474 0.0101 0.0164 0.00473 0.0101 L1748255-09L1748255-08 SS-8 L1748255-07 SS-7 6/18/2024 6/18/2024 6/18/2024 SS-9 Page 5 of 10 Table 2 - VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Lab Sample ID Date Collected Client Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. Bold value exceeds Method Detection Limit (MDL). EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2024; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J4: The associated batch QC was outside the established quality control range for accuracy J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL L1748255-09L1748255-08 SS-8 L1748255-07 SS-7 6/18/2024 6/18/2024 6/18/2024 SS-9 0.00149 B J J4 0.00101 0.0051 0.00174 B J J4 0.00101 0.0051 0.00152 B J J4 0.00101 0.00505 0.00275 J 0.00096 0.0101 0.00175 J 0.00096 0.0101 0.00367 J 0.00096 0.0101 <0.00101 0.00035 0.001 <0.00101 0.00036 0.001 <0.00101 0.000354 0.00101 <0.00506 0.00504 0.0051 <0.00507 0.00505 0.0051 <0.00505 0.00503 0.00505 <0.00101 0.00021 0.001 <0.00101 0.00021 0.001 <0.00101 0.000208 0.00101 <0.00101 0.00023 0.001 <0.00101 0.00023 0.001 <0.00101 0.000225 0.00101 <0.00101 0.0003 0.001 <0.00101 0.0003 0.001 <0.00101 0.000299 0.00101 <0.00101 0.00023 0.001 <0.00101 0.00023 0.001 <0.00101 0.000234 0.00101 <0.00101 0.00043 0.001 <0.00101 0.00043 0.001 <0.00101 0.000431 0.00101 <0.00101 0.00033 0.001 <0.00101 0.00033 0.001 <0.00101 0.000329 0.00101 <0.00506 0.00124 0.0051 0.00263 J 0.00125 0.0051 0.00321 J 0.00124 0.00505 <0.00101 0.00031 0.001 <0.00101 0.00031 0.001 <0.00101 0.000309 0.00101 <0.00101 0.00039 0.001 <0.00101 0.00039 0.001 <0.00101 0.000392 0.00101 <0.00101 0.00037 0.001 <0.00101 0.00038 0.001 <0.00101 0.000374 0.00101 <0.00101 0.00043 0.001 <0.00101 0.00043 0.001 <0.00101 0.00043 0.00101 <0.00101 0.0002 0.001 <0.00101 0.0002 0.001 <0.00101 0.000202 0.00101 <0.00506 0.00036 0.0051 <0.00507 0.00036 0.0051 <0.00505 0.00036 0.00505 <0.00253 0.00025 0.0025 <0.00253 0.00025 0.0025 <0.00253 0.000247 0.00253 <0.00101 0.00021 0.001 0.00031 J 0.00021 0.001 0.00045 J 0.000213 0.00101 <0.00101 0.00029 0.001 <0.00101 0.00029 0.001 <0.00101 0.00029 0.00101 <0.00101 0.00027 0.001 <0.00101 0.00027 0.001 <0.00101 0.000269 0.00101 <0.00101 0.00023 0.001 <0.00101 0.00023 0.001 <0.00101 0.000228 0.00101 0.000556 J 0.00051 0.003 0.00111 J 0.00051 0.003 0.00142 J 0.000505 0.00303 Page 6 of 10 Table 2 - VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 70000 1100000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 5400 23000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 63 370 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Lab Sample ID Date Collected Client Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL <0.506 0.185 0.506 <0.504 0.184 0.504 <0.527 0.193 0.527 35.8 3.9 20.3 21.3 0.775 4.03 108 0.811 4.22 1370 33.4 101 567 33.2 101 596 34.8 105 0.0887 J4 0.021 0.0506 0.113 J4 0.0209 0.0504 0.0462 J J4 0.0218 0.0527 <0.0101 0.00205 0.0101 <0.0101 0.00203 0.0101 <0.0105 0.00213 0.0105 0.00211 0.00038 0.00101 0.00162 0.000378 0.00101 0.00416 0.000396 0.00105 <0.00101 0.000279 0.00101 <0.00101 0.000277 0.00101 <0.00105 0.00029 0.00105 <0.00101 0.000734 0.00101 <0.00101 0.00073 0.00101 <0.00105 0.000765 0.00105 <0.00101 0.000429 0.00101 <0.00101 0.000427 0.00101 <0.00105 0.000447 0.00105 <0.00506 0.00119 0.00506 <0.00504 0.00118 0.00504 <0.00527 0.00123 0.00527 <0.00101 0.000261 0.00101 <0.00101 0.00026 0.00101 <0.00105 0.000272 0.00105 <0.00101 0.000204 0.00101 <0.00101 0.000202 0.00101 <0.00105 0.000212 0.00105 <0.00101 0.000209 0.00101 <0.00101 0.000208 0.00101 <0.00105 0.000217 0.00105 <0.00101 0.000251 0.00101 <0.00101 0.00025 0.00101 <0.00105 0.000262 0.00105 <0.00101 0.000194 0.00101 <0.00101 0.000193 0.00101 <0.00105 0.000203 0.00105 <0.00101 0.000227 0.00101 <0.00101 0.000226 0.00101 <0.00105 0.000236 0.00105 <0.00506 0.00101 0.00506 <0.00504 0.00101 0.00504 <0.00527 0.00105 0.00527 <0.00506 0.00104 0.00506 <0.00504 0.00104 0.00504 <0.00527 0.00109 0.00527 <0.00253 0.000658 0.00253 <0.00252 0.000655 0.00252 <0.00264 0.000686 0.00264 <0.00101 0.000228 0.00101 <0.00101 0.000227 0.00101 <0.00105 0.000237 0.00105 <0.00101 0.0007 0.00101 <0.00101 0.000696 0.00101 <0.00105 0.000729 0.00105 <0.00506 0.00192 0.00506 <0.00504 0.00191 0.00504 <0.00527 0.002 0.00527 <0.00101 0.000253 0.00101 <0.00101 0.000252 0.00101 <0.00105 0.000264 0.00105 <0.00101 0.000355 0.00101 <0.00101 0.000353 0.00101 <0.00105 0.000369 0.00105 <0.00101 0.00043 0.00101 <0.00101 0.000428 0.00101 <0.00105 0.000448 0.00105 <0.00101 0.000608 0.00101 <0.00101 0.000604 0.00101 <0.00105 0.000633 0.00105 <0.00101 0.000841 0.00101 <0.00101 0.000836 0.00101 <0.00105 0.000875 0.00105 <0.00506 0.000291 0.00506 <0.00504 0.000289 0.00504 <0.00527 0.000303 0.00527 <0.00101 0.000271 0.00101 <0.00101 0.00027 0.00101 <0.00105 0.000283 0.00105 <0.00101 0.000456 0.00101 <0.00101 0.000453 0.00101 <0.00105 0.000475 0.00105 <0.00101 0.00036 0.00101 <0.00101 0.000358 0.00101 <0.00105 0.000374 0.00105 <0.00101 0.000481 0.00101 <0.00101 0.000478 0.00101 <0.00105 0.000501 0.00105 <0.00101 0.000506 0.00101 <0.00101 0.000504 0.00101 <0.00105 0.000527 0.00105 <0.00101 0.000166 0.00101 <0.00101 0.000165 0.00101 <0.00105 0.000173 0.00105 <0.00101 0.00038 0.00101 <0.00101 0.000378 0.00101 <0.00105 0.000396 0.00105 <0.00101 0.000228 0.00101 <0.00101 0.000227 0.00101 <0.00105 0.000237 0.00105 <0.00101 0.00043 0.00101 <0.00101 0.000428 0.00101 <0.00105 0.000448 0.00105 <0.00101 0.000684 0.00101 <0.00101 0.00068 0.00101 <0.00105 0.000712 0.00105 <0.00101 0.00038 0.00101 <0.00101 0.000378 0.00101 <0.00105 0.000396 0.00105 <0.00101 0.000224 0.00101 <0.00101 0.000223 0.00101 <0.00105 0.000233 0.00105 0.000815 J 0.000304 0.00101 0.000651 J 0.000302 0.00101 0.00195 0.000316 0.00105 <0.00101 0.000346 0.00101 <0.00101 0.000345 0.00101 <0.00105 0.000361 0.00105 <0.00101 0.00043 0.00101 <0.00101 0.000428 0.00101 <0.00105 0.000448 0.00105 <0.00101 0.000207 0.00101 <0.00101 0.000205 0.00101 <0.00105 0.000215 0.00105 0.0107 0.00474 0.0101 0.0207 0.00471 0.0101 0.00592 J 0.00494 0.0105 SS-13 L1748255-11 L1748255-12 L1748255-13 6/18/2024 6/18/2024 6/18/2024 SS-11 SS-12 Page 7 of 10 Table 2 - VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Lab Sample ID Date Collected Client Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. Bold value exceeds Method Detection Limit (MDL). EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2024; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J4: The associated batch QC was outside the established quality control range for accuracy J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL SS-13 L1748255-11 L1748255-12 L1748255-13 6/18/2024 6/18/2024 6/18/2024 SS-11 SS-12 <0.00506 J4 0.00101 0.00506 0.00135 B J J4 0.00101 0.00504 0.0013 B J J4 0.00105 0.00527 0.00237 J 0.000962 0.0101 0.00354 J 0.000957 0.0101 0.00159 J 0.001 0.0105 <0.00101 0.000355 0.00101 <0.00101 0.000353 0.00101 <0.00105 0.000369 0.00105 <0.00506 0.00504 0.00506 <0.00504 0.00502 0.00504 <0.00527 0.00525 0.00527 <0.00101 0.000209 0.00101 <0.00101 0.000208 0.00101 0.000303 J 0.000217 0.00105 <0.00101 0.000226 0.00101 <0.00101 0.000225 0.00101 <0.00105 0.000235 0.00105 <0.00101 0.0003 0.00101 <0.00101 0.000298 0.00101 <0.00105 0.000312 0.00105 <0.00101 0.000234 0.00101 <0.00101 0.000233 0.00101 <0.00105 0.000244 0.00105 <0.00101 0.000432 0.00101 <0.00101 0.000429 0.00101 <0.00105 0.000449 0.00105 <0.00101 0.000329 0.00101 <0.00101 0.000327 0.00101 <0.00105 0.000343 0.00105 0.00272 J 0.00125 0.00506 0.002 J 0.00124 0.00504 0.00517 J 0.0013 0.00527 <0.00101 0.00031 0.00101 <0.00101 0.000308 0.00101 <0.00105 0.000323 0.00105 <0.00101 0.000393 0.00101 <0.00101 0.000391 0.00101 <0.00105 0.000409 0.00105 <0.00101 0.000375 0.00101 <0.00101 0.000373 0.00101 <0.00105 0.00039 0.00105 <0.00101 0.00043 0.00101 <0.00101 0.000428 0.00101 <0.00105 0.000448 0.00105 <0.00101 0.000203 0.00101 <0.00101 0.000201 0.00101 <0.00105 0.000211 0.00105 <0.00506 0.000361 0.00506 <0.00504 0.000359 0.00504 <0.00527 0.000375 0.00527 <0.00253 0.000247 0.00253 <0.00252 0.000246 0.00252 <0.00264 0.000257 0.00264 0.000231 J 0.000214 0.00101 <0.00101 0.000213 0.00101 0.000644 J 0.000223 0.00105 <0.00101 0.000291 0.00101 <0.00101 0.000289 0.00101 <0.00105 0.000303 0.00105 <0.00101 0.000269 0.00101 <0.00101 0.000268 0.00101 <0.00105 0.000281 0.00105 <0.00101 0.000229 0.00101 <0.00101 0.000228 0.00101 <0.00105 0.000238 0.00105 0.000919 J 0.000506 0.00304 0.000858 J 0.000504 0.00302 0.00194 J 0.000527 0.00316 Page 8 of 10 Table 2 - VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 70000 1100000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 5400 23000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 63 370 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Lab Sample ID Date Collected Client Sample ID Result Q MDL RDL Result Q MDL RDL <0.509 0.186 0.509 <0.503 0.184 0.503 18.9 J 3.92 20.4 38.4 3.87 20.1 656 33.6 102 281 33.2 101 0.0343 J J4 0.0211 0.0509 0.132 J4 0.0208 0.0503 <0.0102 0.00206 0.0102 <0.0101 0.00203 0.0101 0.00299 0.000382 0.00102 0.00392 0.000377 0.00101 <0.00102 0.00028 0.00102 <0.00101 0.000277 0.00101 <0.00102 0.000738 0.00102 <0.00101 0.00073 0.00101 <0.00102 0.000431 0.00102 <0.00101 0.000427 0.00101 <0.00509 0.00119 0.00509 <0.00503 0.00118 0.00503 <0.00102 0.000263 0.00102 <0.00101 0.00026 0.00101 <0.00102 0.000205 0.00102 <0.00101 0.000202 0.00101 <0.00102 0.00021 0.00102 <0.00101 0.000207 0.00101 <0.00102 0.000252 0.00102 <0.00101 0.00025 0.00101 <0.00102 0.000195 0.00102 <0.00101 0.000193 0.00101 <0.00102 0.000228 0.00102 <0.00101 0.000225 0.00101 <0.00509 0.00102 0.00509 <0.00503 0.00101 0.00503 <0.00509 0.00105 0.00509 <0.00503 0.00104 0.00503 <0.00254 0.000661 0.00254 <0.00252 0.000654 0.00252 <0.00102 0.000229 0.00102 <0.00101 0.000226 0.00101 <0.00102 0.000703 0.00102 <0.00101 0.000695 0.00101 <0.00509 0.00193 0.00509 <0.00503 0.00191 0.00503 <0.00102 0.000254 0.00102 <0.00101 0.000252 0.00101 <0.00102 0.000356 0.00102 <0.00101 0.000352 0.00101 <0.00102 0.000432 0.00102 <0.00101 0.000428 0.00101 <0.00102 0.000611 0.00102 <0.00101 0.000604 0.00101 <0.00102 0.000845 0.00102 <0.00101 0.000835 0.00101 <0.00509 0.000292 0.00509 <0.00503 0.000289 0.00503 <0.00102 0.000273 0.00102 <0.00101 0.00027 0.00101 <0.00102 0.000458 0.00102 <0.00101 0.000453 0.00101 <0.00102 0.000361 0.00102 <0.00101 0.000357 0.00101 <0.00102 0.000483 0.00102 <0.00101 0.000478 0.00101 <0.00102 0.000509 0.00102 <0.00101 0.000503 0.00101 <0.00102 0.000167 0.00102 <0.00101 0.000165 0.00101 <0.00102 0.000382 0.00102 <0.00101 0.000377 0.00101 <0.00102 0.000229 0.00102 <0.00101 0.000226 0.00101 <0.00102 0.000432 0.00102 <0.00101 0.000428 0.00101 <0.00102 0.000687 0.00102 <0.00101 0.000679 0.00101 <0.00102 0.000382 0.00102 <0.00101 0.000377 0.00101 <0.00102 0.000225 0.00102 <0.00101 0.000222 0.00101 0.0018 0.000305 0.00102 0.00137 0.000302 0.00101 <0.00102 0.000348 0.00102 <0.00101 0.000344 0.00101 <0.00102 0.000432 0.00102 <0.00101 0.000428 0.00101 <0.00102 0.000208 0.00102 <0.00101 0.000205 0.00101 0.00638 J 0.00476 0.0102 0.0266 0.00471 0.0101 6/18/2024 6/18/2024 SS-50 SS-120 L1748255-14 L1748255-16 Page 9 of 10 Table 2 - VOCs and Petroleum Hydrocarbons in Soil (2024 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Lab Sample ID Date Collected Client Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. Bold value exceeds Method Detection Limit (MDL). EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2024; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J4: The associated batch QC was outside the established quality control range for accuracy J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. Result Q MDL RDL Result Q MDL RDL 6/18/2024 6/18/2024 SS-50 SS-120 L1748255-14 L1748255-16 0.00133 B J J4 0.00102 0.00509 0.00188 B J J4 0.00101 0.00503 0.000967 J 0.000967 0.0102 0.00554 J 0.000956 0.0101 <0.00102 0.000356 0.00102 <0.00101 0.000352 0.00101 <0.00509 0.00507 0.00509 <0.00503 0.00501 0.00503 0.000263 J 0.00021 0.00102 <0.00101 0.000207 0.00101 <0.00102 0.000227 0.00102 <0.00101 0.000224 0.00101 <0.00102 0.000301 0.00102 <0.00101 0.000298 0.00101 <0.00102 0.000235 0.00102 <0.00101 0.000232 0.00101 <0.00102 0.000433 0.00102 <0.00101 0.000429 0.00101 <0.00102 0.000331 0.00102 <0.00101 0.000327 0.00101 0.00413 J 0.00125 0.00509 0.00461 J 0.00124 0.00503 <0.00102 0.000311 0.00102 <0.00101 0.000308 0.00101 <0.00102 0.000395 0.00102 <0.00101 0.00039 0.00101 <0.00102 0.000377 0.00102 <0.00101 0.000372 0.00101 <0.00102 0.000432 0.00102 <0.00101 0.000428 0.00101 <0.00102 0.000204 0.00102 <0.00101 0.000201 0.00101 <0.00509 0.000362 0.00509 <0.00503 0.000358 0.00503 <0.00254 0.000248 0.00254 <0.00252 0.000246 0.00252 0.000355 J 0.000215 0.00102 0.000478 J 0.000212 0.00101 <0.00102 0.000292 0.00102 <0.00101 0.000289 0.00101 <0.00102 0.000271 0.00102 <0.00101 0.000268 0.00101 <0.00102 0.00023 0.00102 <0.00101 0.000227 0.00101 0.00136 J 0.000509 0.00305 0.00154 J 0.000503 0.00302 Page 10 of 10 Table 3 - Metals in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork City, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL ARSENIC 7440-38-2 6010B mg/kg 0.7 3 2.84 0.673 2.6 6.75 0.588 2.27 2.99 0.639 2.47 5.27 0.578 2.23 BARIUM 7440-39-3 6010B mg/kg 15,000 220,000 184 0.111 0.649 247 0.0968 0.568 245 0.105 0.617 163 0.0951 0.558 CADMIUM 7440-43-9 6010B mg/kg 7.1 111 1.2 0.0612 0.649 0.426 J 0.0535 0.568 1.37 0.0581 0.617 0.525 J 0.0526 0.558 CHROMIUM 7440-47-3 6010B mg/kg NE NE 22.1 O1 0.173 1.3 15.5 0.151 1.14 27.5 0.164 1.23 19.2 0.148 1.12 HEXAVALENT CHROMIUM 18540-29-9 7199 mg/kg 0.95 20.0 <1.30 J6 0.331 1.3 <1.14 0.29 1.14 <1.23 0.315 1.23 <1.12 0.285 1.12 LEAD 7439-92-1 6010B mg/kg 200 800 54.9 0.27 0.649 6.28 0.236 0.568 102 0.257 0.617 8.11 0.232 0.558 MERCURY 7439-97-6 7471A mg/kg 11 46 0.0397 J 0.0234 0.0519 <0.0454 0.0204 0.0454 <0.0494 0.0222 0.0494 <0.0446 0.0201 0.0446 SELENIUM 7782-49-2 6010B mg/kg 390 5,800 <2.60 0.992 2.6 1.39 J 0.868 2.27 1.43 J 0.943 2.47 0.97 J 0.853 2.23 SILVER 7440-22-4 6010B mg/kg 390 5,800 <1.30 0.165 1.3 <1.14 0.144 1.14 <1.23 0.157 1.23 <1.12 0.142 1.12 Qualifiers (Q): mg/kg:Milligrams per kilogram. <: Less than Reported Detection Limit (RDL). Bold value exceeds Method Detection Limit (MDL). NE - Not Established Color shaded value exceeds screening level. EPA RSL:Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (November 2024; TR=1E-06; THQ=1.0). Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. 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.O1 - The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. 11/11/2022 11/10/2022 11/10/2022Date Collected 11/11/2022 B-3 @ SURFACE B-3 @ 4'B-4 @ SURFACE B-4 @ 3'Client Sample ID L1558026-06 L1558026-07 L1558026-08Lab Sample ID L1558026-05 Page 1 of 7 Table 3 - Metals in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork City, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ARSENIC 7440-38-2 6010B mg/kg 0.7 3 BARIUM 7440-39-3 6010B mg/kg 15,000 220,000 CADMIUM 7440-43-9 6010B mg/kg 7.1 111 CHROMIUM 7440-47-3 6010B mg/kg NE NE HEXAVALENT CHROMIUM 18540-29-9 7199 mg/kg 0.95 20.0 LEAD 7439-92-1 6010B mg/kg 200 800 MERCURY 7439-97-6 7471A mg/kg 11 46 SELENIUM 7782-49-2 6010B mg/kg 390 5,800 SILVER 7440-22-4 6010B mg/kg 390 5,800 Qualifiers (Q): mg/kg:Milligrams per kilogram. <: Less than Reported Detection Limit (RDL). Bold value exceeds Method Detection Limit (MDL). NE - Not Established Color shaded value exceeds screening level. EPA RSL:Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (November 2024; TR=1E-06; THQ=1.0). Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. 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.O1 - The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 4.36 0.664 2.56 4.55 0.668 2.58 3.11 0.537 2.07 3.74 0.656 2.53 252 0.109 0.641 249 0.11 0.645 38.6 0.0884 0.519 144 0.108 0.633 0.68 0.0604 0.641 0.795 0.0607 0.645 0.304 J 0.0489 0.519 0.522 J 0.0596 0.633 17.2 0.17 1.28 19.4 0.171 1.29 6.78 0.138 1.04 22.6 0.168 1.27 <1.28 0.327 1.28 <1.29 0.329 1.29 0.43 J 0.265 1.04 <1.27 0.323 1.27 31.3 0.267 0.641 26.3 0.268 0.645 9.05 0.216 0.519 10.2 0.263 0.633 <0.0513 0.0231 0.0513 <0.0516 0.0232 0.0516 <0.0415 0.0187 0.0415 <0.0506 0.0228 0.0506 <2.56 0.979 2.56 <2.58 0.985 2.58 1.54 J 0.793 2.07 <2.53 0.967 2.53 <1.28 0.163 1.28 <1.29 0.164 1.29 <1.04 0.132 1.04 <1.27 0.161 1.27 11/09/202211/10/2022 11/10/2022 11/09/2022 B-6 @ SURFACE B-6 @ 19'B-5 @ SURFACE B-5 @ 3' L1558026-12L1558026-09 L1558026-10 L1558026-11 Page 2 of 7 Table 3 - Metals in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork City, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ARSENIC 7440-38-2 6010B mg/kg 0.7 3 BARIUM 7440-39-3 6010B mg/kg 15,000 220,000 CADMIUM 7440-43-9 6010B mg/kg 7.1 111 CHROMIUM 7440-47-3 6010B mg/kg NE NE HEXAVALENT CHROMIUM 18540-29-9 7199 mg/kg 0.95 20.0 LEAD 7439-92-1 6010B mg/kg 200 800 MERCURY 7439-97-6 7471A mg/kg 11 46 SELENIUM 7782-49-2 6010B mg/kg 390 5,800 SILVER 7440-22-4 6010B mg/kg 390 5,800 Qualifiers (Q): mg/kg:Milligrams per kilogram. <: Less than Reported Detection Limit (RDL). Bold value exceeds Method Detection Limit (MDL). NE - Not Established Color shaded value exceeds screening level. EPA RSL:Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (November 2024; TR=1E-06; THQ=1.0). Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. 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.O1 - The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 2.95 0.645 2.49 13.8 0.629 2.43 2.35 J 0.649 2.51 2.31 J 0.663 2.56 409 0.106 0.623 243 0.103 0.607 243 0.107 0.626 265 0.109 0.64 0.669 0.0586 0.623 0.582 J 0.0572 0.607 0.684 0.059 0.626 0.544 J 0.0603 0.64 20.2 0.166 1.25 21.3 0.162 1.21 18.6 0.167 1.25 18.5 0.17 1.28 <1.25 0.318 1.25 <1.21 0.31 1.21 <1.25 0.32 1.25 <1.28 0.326 1.28 30.4 0.259 0.623 7.04 0.253 0.607 57.1 0.261 0.626 12.9 0.266 0.64 <0.0498 0.0224 0.0498 <0.0486 0.0219 0.0486 <0.0501 0.0226 0.0501 <0.0512 0.023 0.0512 1.29 J 0.951 2.49 <2.43 0.928 2.43 1.19 J 0.957 2.51 1.81 J 0.977 2.56 <1.25 0.158 1.25 <1.21 0.154 1.21 <1.25 0.159 1.25 <1.28 0.162 1.28 11/11/2022 11/11/2022 11/10/2022 11/10/2022 B-7 @ SURFACE B-7 @ 7'B-8 @ SURFACE B-8 @ 3' L1558026-13 L1558026-14 L1558026-15 L1558026-16 Page 3 of 7 Table 3 - Metals in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork City, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ARSENIC 7440-38-2 6010B mg/kg 0.7 3 BARIUM 7440-39-3 6010B mg/kg 15,000 220,000 CADMIUM 7440-43-9 6010B mg/kg 7.1 111 CHROMIUM 7440-47-3 6010B mg/kg NE NE HEXAVALENT CHROMIUM 18540-29-9 7199 mg/kg 0.95 20.0 LEAD 7439-92-1 6010B mg/kg 200 800 MERCURY 7439-97-6 7471A mg/kg 11 46 SELENIUM 7782-49-2 6010B mg/kg 390 5,800 SILVER 7440-22-4 6010B mg/kg 390 5,800 Qualifiers (Q): mg/kg:Milligrams per kilogram. <: Less than Reported Detection Limit (RDL). Bold value exceeds Method Detection Limit (MDL). NE - Not Established Color shaded value exceeds screening level. EPA RSL:Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (November 2024; TR=1E-06; THQ=1.0). Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. 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.O1 - The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 3.1 0.582 2.25 2.81 0.593 2.29 4.61 0.688 2.66 10.2 0.63 2.43 114 0.0958 0.562 95.1 0.0976 0.573 486 0.113 0.665 216 0.104 0.608 0.514 J 0.053 0.562 0.445 J 0.0539 0.573 5.35 0.0626 0.665 0.492 J 0.0572 0.608 16.1 0.15 1.12 13.5 0.152 1.15 55.2 0.177 1.33 21.7 0.162 1.22 0.356 J 0.287 1.12 0.472 J 0.292 1.15 <1.33 0.339 1.33 <1.22 0.31 1.22 15.2 0.234 0.562 13 0.238 0.573 542 0.276 0.665 10.9 0.253 0.608 <0.0450 0.0202 0.045 <0.0458 0.0206 0.0458 0.0959 0.0239 0.0532 <0.0486 0.0219 0.0486 <2.25 0.859 2.25 <2.29 0.875 2.29 <2.66 1.02 2.66 <2.43 0.929 2.43 <1.12 0.143 1.12 <1.15 0.145 1.15 8.55 0.169 1.33 <1.22 0.154 1.22 11/11/202211/09/2022 11/11/202211/09/2022 B-12 @ SURFACE B-12 @ 1'B-9 @ SURFACE B-9 @ 2' L1558026-41L1558026-18 L1558026-40L1558026-17 Page 4 of 7 Table 3 - Metals in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork City, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ARSENIC 7440-38-2 6010B mg/kg 0.7 3 BARIUM 7440-39-3 6010B mg/kg 15,000 220,000 CADMIUM 7440-43-9 6010B mg/kg 7.1 111 CHROMIUM 7440-47-3 6010B mg/kg NE NE HEXAVALENT CHROMIUM 18540-29-9 7199 mg/kg 0.95 20.0 LEAD 7439-92-1 6010B mg/kg 200 800 MERCURY 7439-97-6 7471A mg/kg 11 46 SELENIUM 7782-49-2 6010B mg/kg 390 5,800 SILVER 7440-22-4 6010B mg/kg 390 5,800 Qualifiers (Q): mg/kg:Milligrams per kilogram. <: Less than Reported Detection Limit (RDL). Bold value exceeds Method Detection Limit (MDL). NE - Not Established Color shaded value exceeds screening level. EPA RSL:Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (November 2024; TR=1E-06; THQ=1.0). Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. 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.O1 - The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 4.05 0.606 2.34 4.84 0.592 2.29 7.42 0.679 2.62 11.3 0.635 2.45 241 0.0997 0.585 233 0.0974 0.572 435 0.112 0.655 168 0.104 0.613 0.612 0.0551 0.585 0.463 J 0.0539 0.572 0.259 J 0.0617 0.655 0.496 J 0.0577 0.613 17.7 0.156 1.17 21.5 0.152 1.14 18.2 0.174 1.31 22.5 0.163 1.23 <1.17 0.298 1.17 <1.14 0.292 1.14 <1.31 0.334 1.31 <1.23 0.312 1.23 45 0.243 0.585 14.7 0.238 0.572 7.7 0.272 0.655 11 0.255 0.613 0.0351 J 0.0211 0.0468 <0.0457 0.0206 0.0457 <0.0524 0.0236 0.0524 <0.0490 0.0221 0.049 <2.34 0.894 2.34 <2.29 0.874 2.29 <2.62 1 2.62 <2.45 0.936 2.45 <1.17 0.149 1.17 <1.14 0.145 1.14 <1.31 0.166 1.31 <1.23 0.156 1.23 11/11/2022 11/11/2022 11/09/2022 11/09/2022 B-13 @ SURFACE B-13 @ 3'B-14 @ SURFACE B-14 @ 10' L1558026-42 L1558026-43 L1558026-44 L1558026-45 Page 5 of 7 Table 3 - Metals in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork City, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ARSENIC 7440-38-2 6010B mg/kg 0.7 3 BARIUM 7440-39-3 6010B mg/kg 15,000 220,000 CADMIUM 7440-43-9 6010B mg/kg 7.1 111 CHROMIUM 7440-47-3 6010B mg/kg NE NE HEXAVALENT CHROMIUM 18540-29-9 7199 mg/kg 0.95 20.0 LEAD 7439-92-1 6010B mg/kg 200 800 MERCURY 7439-97-6 7471A mg/kg 11 46 SELENIUM 7782-49-2 6010B mg/kg 390 5,800 SILVER 7440-22-4 6010B mg/kg 390 5,800 Qualifiers (Q): mg/kg:Milligrams per kilogram. <: Less than Reported Detection Limit (RDL). Bold value exceeds Method Detection Limit (MDL). NE - Not Established Color shaded value exceeds screening level. EPA RSL:Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (November 2024; TR=1E-06; THQ=1.0). Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. 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.O1 - The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 3.97 0.625 2.41 1.88 J 0.649 2.51 5.85 0.683 2.64 1.88 J 0.634 2.45 219 0.103 0.603 171 0.107 0.626 610 0.112 0.659 146 0.104 0.612 0.686 0.0568 0.603 0.505 J 0.059 0.626 0.154 J 0.0621 0.659 0.471 J 0.0577 0.612 122 0.16 1.21 24.8 0.167 1.25 14.9 0.175 1.32 19.3 0.163 1.22 1.52 0.308 1.21 <1.25 0.319 1.25 <1.32 0.336 1.32 <1.22 0.312 1.22 44.4 0.251 0.603 11.6 0.261 0.626 6.6 0.274 0.659 10.3 0.255 0.612 0.0232 J 0.0217 0.0482 <0.0501 0.0226 0.0501 <0.0527 0.0237 0.0527 <0.0490 0.022 0.049 <2.41 0.922 2.41 <2.51 0.957 2.51 <2.64 1.01 2.64 <2.45 0.935 2.45 0.265 J 0.153 1.21 <1.25 0.159 1.25 <1.32 0.167 1.32 <1.22 0.155 1.22 11/09/2022 11/09/2022 11/09/202211/09/2022 B-15 @ SURFACE B-15 @ 12'B-140 @ SURFACE B-140 @ 10' L1558026-47 L1558026-50 L1558026-51L1558026-46 Page 6 of 7 Table 3 - Metals in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork City, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ARSENIC 7440-38-2 6010B mg/kg 0.7 3 BARIUM 7440-39-3 6010B mg/kg 15,000 220,000 CADMIUM 7440-43-9 6010B mg/kg 7.1 111 CHROMIUM 7440-47-3 6010B mg/kg NE NE HEXAVALENT CHROMIUM 18540-29-9 7199 mg/kg 0.95 20.0 LEAD 7439-92-1 6010B mg/kg 200 800 MERCURY 7439-97-6 7471A mg/kg 11 46 SELENIUM 7782-49-2 6010B mg/kg 390 5,800 SILVER 7440-22-4 6010B mg/kg 390 5,800 Qualifiers (Q): mg/kg:Milligrams per kilogram. <: Less than Reported Detection Limit (RDL). Bold value exceeds Method Detection Limit (MDL). NE - Not Established Color shaded value exceeds screening level. EPA RSL:Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (November 2024; TR=1E-06; THQ=1.0). Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. 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.O1 - The analyte failed the method required serial dilution test and/or subsequent post-spike criteria. These failures indicate matrix interference. Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL 3.23 0.652 2.52 3.08 0.661 2.55 273 0.107 0.629 316 0.109 0.638 0.756 0.0593 0.629 0.399 J 0.0601 0.638 21 0.167 1.26 17.4 0.17 1.28 <1.26 0.321 1.26 <1.28 0.325 1.28 41.5 0.262 0.629 14.5 0.265 0.638 <0.0503 0.0227 0.0503 <0.0510 0.023 0.051 <2.52 0.962 2.52 <2.55 0.975 2.55 <1.26 0.16 1.26 <1.28 0.162 1.28 11/10/202211/10/2022 B-80 @ SURFACE B-80 @ 3' L1558026-53L1558026-52 Page 7 of 7 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 0.636 J J3 0.238 0.649 0.227 J 0.208 0.568 0.359 J 0.226 0.617 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 54 0.999 5.19 4.97 0.873 4.54 88 9.49 49.4 TRPH NE 9071B mg/kg NE NE 1000 10000 <130 P1 42.9 130 100 J 37.5 114 849 40.7 123 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE 0.142 J5 0.0269 0.0649 <0.0568 0.0235 0.0568 0.0764 0.0256 0.0617 ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE <0.0130 J3 J6 0.00262 0.013 <0.0114 0.00229 0.0114 <0.0123 0.00249 0.0123 BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 0.024 0.00049 0.0013 0.00262 0.00043 0.0011 0.0102 0.00046 0.0012 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE <0.00130 0.00036 0.0013 <0.00114 0.00031 0.0011 <0.00123 0.00034 0.0012 BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE <0.00130 0.00094 0.0013 <0.00114 0.00082 0.0011 <0.00123 0.0009 0.0012 BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE <0.00130 0.00055 0.0013 <0.00114 0.00048 0.0011 <0.00123 0.00052 0.0012 BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE <0.00649 0.00152 0.0065 <0.00568 0.00133 0.0057 <0.00617 0.00144 0.0062 N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE 0.000343 J V3 0.00034 0.0013 <0.00114 0.00029 0.0011 <0.00123 0.00032 0.0012 SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE <0.00130 0.00026 0.0013 <0.00114 0.00023 0.0011 <0.00123 0.00025 0.0012 TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE <0.00130 0.00027 0.0013 <0.00114 0.00023 0.0011 <0.00123 0.00025 0.0012 CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE <0.00130 J5 0.00032 0.0013 <0.00114 0.00028 0.0011 <0.00123 0.00031 0.0012 CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE <0.00130 0.00025 0.0013 <0.00114 0.00022 0.0011 <0.00123 0.00024 0.0012 CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE <0.00130 0.00029 0.0013 <0.00114 0.00025 0.0011 <0.00123 0.00028 0.0012 CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE <0.00649 0.0013 0.0065 <0.00568 0.00114 0.0057 <0.00617 0.00123 0.0062 CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE <0.00649 0.00134 0.0065 <0.00568 0.00117 0.0057 <0.00617 0.00127 0.0062 CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE <0.00325 0.00084 0.0033 <0.00284 0.00074 0.0028 <0.00309 0.0008 0.0031 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE <0.00130 0.00029 0.0013 <0.00114 0.00026 0.0011 <0.00123 0.00028 0.0012 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE <0.00130 0.0009 0.0013 <0.00114 0.00079 0.0011 <0.00123 0.00085 0.0012 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE <0.00649 J5 0.00247 0.0065 <0.00568 0.00216 0.0057 <0.00617 0.00235 0.0062 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE <0.00130 0.00033 0.0013 <0.00114 0.00028 0.0011 <0.00123 0.00031 0.0012 DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE <0.00130 0.00046 0.0013 <0.00114 0.0004 0.0011 <0.00123 0.00043 0.0012 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE <0.00130 0.00055 0.0013 <0.00114 0.00048 0.0011 <0.00123 0.00053 0.0012 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE <0.00130 0.00078 0.0013 <0.00114 0.00068 0.0011 <0.00123 0.00074 0.0012 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE <0.00130 0.00108 0.0013 <0.00114 0.00094 0.0011 <0.00123 0.00102 0.0012 DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE <0.00649 J5 0.00037 0.0065 <0.00568 0.00033 0.0057 <0.00617 0.00035 0.0062 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE <0.00130 J5 0.00035 0.0013 <0.00114 0.0003 0.0011 <0.00123 0.00033 0.0012 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE <0.00130 0.00058 0.0013 <0.00114 0.00051 0.0011 <0.00123 0.00056 0.0012 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE <0.00130 0.00046 0.0013 <0.00114 0.0004 0.0011 <0.00123 0.00044 0.0012 CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE <0.00130 0.00062 0.0013 <0.00114 0.00054 0.0011 <0.00123 0.00059 0.0012 TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE <0.00130 0.00065 0.0013 <0.00114 0.00057 0.0011 <0.00123 0.00062 0.0012 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE <0.00130 0.00021 0.0013 <0.00114 0.00019 0.0011 <0.00123 0.0002 0.0012 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE <0.00130 0.00049 0.0013 <0.00114 0.00043 0.0011 <0.00123 0.00046 0.0012 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE <0.00130 0.00029 0.0013 <0.00114 0.00026 0.0011 <0.00123 0.00028 0.0012 CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE <0.00130 0.00055 0.0013 <0.00114 0.00048 0.0011 <0.00123 0.00053 0.0012 TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE <0.00130 0.00088 0.0013 <0.00114 0.00077 0.0011 <0.00123 0.00083 0.0012 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE <0.00130 J5 0.00049 0.0013 <0.00114 0.00043 0.0011 <0.00123 0.00046 0.0012 DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE <0.00130 J5 0.00029 0.0013 <0.00114 0.00025 0.0011 <0.00123 0.00027 0.0012 ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 0.0121 V3 0.00039 0.0013 0.0025 0.00034 0.0011 0.00349 0.00037 0.0012 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE <0.00130 0.00044 0.0013 <0.00114 0.00039 0.0011 <0.00123 0.00042 0.0012 ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE 0.000747 J V3 0.00055 0.0013 <0.00114 0.00048 0.0011 <0.00123 0.00053 0.0012 P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE <0.00130 0.00027 0.0013 <0.00114 0.00023 0.0011 <0.00123 0.00025 0.0012 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE 0.0291 J5 0.00608 0.013 <0.0114 0.00531 0.0114 0.0199 0.00578 0.0123 11/11/2022 11/10/2022 B-3 @ 4'B-4 @ SURFACE Date Collected 11/11/2022 Client Sample ID B-3 @ SURFACE Lab Sample ID L1558026-05 L1558026-06 L1558026-07 Page 1 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 11/11/2022 11/10/2022 B-3 @ 4'B-4 @ SURFACE Date Collected 11/11/2022 Client Sample ID B-3 @ SURFACE Lab Sample ID L1558026-05 L1558026-06 L1558026-07 METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 0.00286 B J 0.0013 0.0065 0.0012 B J 0.00114 0.0057 0.00211 B J 0.00123 0.0062 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE <0.0130 J5 0.00123 0.013 <0.0114 0.00108 0.0114 0.00257 J 0.00117 0.0123 METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 <0.00130 J5 0.00046 0.0013 <0.00114 0.0004 0.0011 <0.00123 0.00043 0.0012 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 <0.00649 0.00647 0.0065 <0.00568 0.00566 0.0057 <0.00617 0.00615 0.0062 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE 0.00122 J V3 0.00027 0.0013 0.00038 J 0.00023 0.0011 0.000443 J 0.00025 0.0012 STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE <0.00130 0.00029 0.0013 <0.00114 0.00025 0.0011 <0.00123 0.00028 0.0012 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE <0.00130 0.00038 0.0013 <0.00114 0.00034 0.0011 <0.00123 0.00037 0.0012 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE <0.00130 0.0003 0.0013 <0.00114 0.00026 0.0011 <0.00123 0.00029 0.0012 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE <0.00130 J5 0.00055 0.0013 <0.00114 0.00048 0.0011 <0.00123 0.00053 0.0012 TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE <0.00130 J5 0.00042 0.0013 <0.00114 0.00037 0.0011 <0.00123 0.0004 0.0012 TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 0.0266 V3 0.0016 0.0065 0.00501 J 0.0014 0.0057 0.012 0.00152 0.0062 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE <0.00130 0.0004 0.0013 <0.00114 0.00035 0.0011 <0.00123 0.00038 0.0012 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE <0.00130 0.0005 0.0013 <0.00114 0.00044 0.0011 <0.00123 0.00048 0.0012 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE <0.00130 J5 0.00048 0.0013 <0.00114 0.00042 0.0011 <0.00123 0.00046 0.0012 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE <0.00130 0.00055 0.0013 <0.00114 0.00048 0.0011 <0.00123 0.00053 0.0012 TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE <0.00130 0.00026 0.0013 <0.00114 0.00023 0.0011 <0.00123 0.00025 0.0012 TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE <0.00649 0.00046 0.0065 <0.00568 0.0004 0.0057 <0.00617 0.00044 0.0062 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE <0.00325 0.00032 0.0033 <0.00284 0.00028 0.0028 <0.00309 0.0003 0.0031 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 0.00244 V3 0.00027 0.0013 0.00069 J 0.00024 0.0011 0.000989 J 0.00026 0.0012 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 0.000878 J V3 0.00037 0.0013 <0.00114 0.00033 0.0011 <0.00123 0.00035 0.0012 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE 0.000905 J V3 0.00035 0.0013 <0.00114 0.0003 0.0011 0.000416 J 0.00033 0.0012 VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE <0.00130 0.00029 0.0013 <0.00114 0.00026 0.0011 <0.00123 0.00028 0.0012 XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 0.0312 V3 0.00065 0.0039 0.00268 J 0.00057 0.0034 0.00451 0.00062 0.0037 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. P1: RPD value not applicable for sample concentrations less than 5 times the reporting limit. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites Bold value exceeds Method Detection Limit (MDL). Page 2 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 0.405 J 0.204 0.558 0.46 J 0.235 0.641 0.455 J 0.236 0.645 <4.46 0.858 4.46 4.57 J 0.985 5.13 8.43 0.992 5.16 43.9 J 36.8 112 151 42.3 128 <129 42.5 129 <0.0558 0.0231 0.0558 0.093 0.0265 0.0641 0.0673 0.0267 0.0645 <0.0112 0.00225 0.0112 <0.0128 0.00259 0.0128 <0.0129 0.0026 0.0129 0.0111 0.00042 0.0011 0.0146 0.000481 0.00128 0.0161 0.000484 0.00129 <0.00112 0.00031 0.0011 <0.00128 0.000352 0.00128 <0.00129 0.000355 0.00129 <0.00112 0.00081 0.0011 <0.00128 0.000929 0.00128 <0.00129 0.000935 0.00129 <0.00112 0.00047 0.0011 <0.00128 0.000543 0.00128 <0.00129 0.000547 0.00129 <0.00558 0.00131 0.0056 <0.00641 0.0015 0.00641 <0.00645 0.00151 0.00645 0.00048 J 0.00029 0.0011 <0.00128 0.000331 0.00128 <0.00129 0.000333 0.00129 <0.00112 0.00022 0.0011 <0.00128 0.000258 0.00128 <0.00129 0.000259 0.00129 <0.00112 0.00023 0.0011 <0.00128 0.000264 0.00128 <0.00129 0.000266 0.00129 <0.00112 0.00028 0.0011 <0.00128 0.000318 0.00128 <0.00129 0.00032 0.00129 <0.00112 0.00021 0.0011 <0.00128 0.000246 0.00128 <0.00129 0.000248 0.00129 <0.00112 0.00025 0.0011 <0.00128 0.000287 0.00128 <0.00129 0.000289 0.00129 <0.00558 0.00112 0.0056 <0.00641 0.00128 0.00641 <0.00645 0.00129 0.00645 <0.00558 0.00115 0.0056 <0.00641 0.00132 0.00641 <0.00645 0.00133 0.00645 <0.00279 0.00073 0.0028 <0.00320 0.000833 0.0032 <0.00322 0.000838 0.00322 <0.00112 0.00025 0.0011 <0.00128 0.000288 0.00128 <0.00129 0.00029 0.00129 <0.00112 0.00077 0.0011 <0.00128 0.000886 0.00128 <0.00129 0.000891 0.00129 <0.00558 0.00212 0.0056 <0.00641 0.00243 0.00641 <0.00645 0.00245 0.00645 <0.00112 0.00028 0.0011 <0.00128 0.00032 0.00128 <0.00129 0.000322 0.00129 <0.00112 0.00039 0.0011 <0.00128 0.000449 0.00128 <0.00129 0.000451 0.00129 <0.00112 0.00047 0.0011 <0.00128 0.000545 0.00128 <0.00129 0.000548 0.00129 <0.00112 0.00067 0.0011 <0.00128 0.000769 0.00128 <0.00129 0.000774 0.00129 <0.00112 0.00093 0.0011 <0.00128 0.00106 0.00128 <0.00129 0.00107 0.00129 <0.00558 0.00032 0.0056 <0.00641 0.000368 0.00641 <0.00645 0.00037 0.00645 <0.00112 0.0003 0.0011 <0.00128 0.000343 0.00128 <0.00129 0.000346 0.00129 <0.00112 0.0005 0.0011 <0.00128 0.000577 0.00128 <0.00129 0.00058 0.00129 <0.00112 0.0004 0.0011 <0.00128 0.000455 0.00128 <0.00129 0.000458 0.00129 <0.00112 0.00053 0.0011 <0.00128 0.000609 0.00128 <0.00129 0.000612 0.00129 <0.00112 0.00056 0.0011 <0.00128 0.000641 0.00128 <0.00129 0.000645 0.00129 <0.00112 0.00018 0.0011 <0.00128 0.00021 0.00128 <0.00129 0.000211 0.00129 <0.00112 0.00042 0.0011 <0.00128 0.000481 0.00128 <0.00129 0.000484 0.00129 <0.00112 0.00025 0.0011 <0.00128 0.000288 0.00128 <0.00129 0.00029 0.00129 <0.00112 0.00047 0.0011 <0.00128 0.000545 0.00128 <0.00129 0.000548 0.00129 <0.00112 0.00075 0.0011 <0.00128 0.000865 0.00128 <0.00129 0.00087 0.00129 <0.00112 0.00042 0.0011 <0.00128 0.000481 0.00128 <0.00129 0.000484 0.00129 <0.00112 0.00025 0.0011 <0.00128 0.000283 0.00128 <0.00129 0.000285 0.00129 0.00884 0.00034 0.0011 0.00443 0.000384 0.00128 0.00435 0.000387 0.00129 <0.00112 0.00038 0.0011 <0.00128 0.000438 0.00128 <0.00129 0.000441 0.00129 0.00055 J 0.00047 0.0011 <0.00128 0.000545 0.00128 <0.00129 0.000548 0.00129 <0.00112 0.00023 0.0011 <0.00128 0.000261 0.00128 <0.00129 0.000263 0.00129 <0.0112 0.00522 0.0112 0.026 0.006 0.0128 0.0201 0.00603 0.0129 11/10/2022 11/10/2022 11/10/2022 B-4 @ 3'B-5 @ SURFACE B-5 @ 3' L1558026-08 L1558026-09 L1558026-10 Page 3 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Date Collected Client Sample ID Lab Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. P1: RPD value not applicable for sample concentrations less than 5 times the reporting limit. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites Bold value exceeds Method Detection Limit (MDL). Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 11/10/2022 11/10/2022 11/10/2022 B-4 @ 3'B-5 @ SURFACE B-5 @ 3' L1558026-08 L1558026-09 L1558026-10 0.00167 B J 0.00112 0.0056 0.00277 B J 0.00128 0.00641 0.00271 B J 0.00129 0.00645 <0.0112 0.00106 0.0112 <0.0128 0.00122 0.0128 <0.0129 0.00122 0.0129 <0.00112 0.00039 0.0011 <0.00128 0.000449 0.00128 <0.00129 0.000451 0.00129 <0.00558 0.00556 0.0056 <0.00641 0.00638 0.00641 <0.00645 0.00642 0.00645 0.0011 J 0.00023 0.0011 0.00049 J 0.000264 0.00128 0.000552 J 0.000266 0.00129 <0.00112 0.00025 0.0011 <0.00128 0.000286 0.00128 <0.00129 0.000288 0.00129 <0.00112 0.00033 0.0011 <0.00128 0.000379 0.00128 <0.00129 0.000382 0.00129 <0.00112 0.00026 0.0011 <0.00128 0.000296 0.00128 <0.00129 0.000298 0.00129 <0.00112 0.00048 0.0011 <0.00128 0.000546 0.00128 <0.00129 0.000549 0.00129 <0.00112 0.00036 0.0011 <0.00128 0.000416 0.00128 <0.00129 0.000419 0.00129 0.0172 0.00137 0.0056 0.015 0.00158 0.00641 0.0161 0.00159 0.00645 <0.00112 0.00034 0.0011 <0.00128 0.000392 0.00128 <0.00129 0.000395 0.00129 <0.00112 0.00043 0.0011 <0.00128 0.000497 0.00128 <0.00129 0.0005 0.00129 <0.00112 0.00041 0.0011 <0.00128 0.000474 0.00128 <0.00129 0.000477 0.00129 <0.00112 0.00047 0.0011 <0.00128 0.000545 0.00128 <0.00129 0.000548 0.00129 <0.00112 0.00022 0.0011 <0.00128 0.000256 0.00128 <0.00129 0.000258 0.00129 <0.00558 0.0004 0.0056 <0.00641 0.000456 0.00641 <0.00645 0.000459 0.00645 <0.00279 0.00027 0.0028 <0.00320 0.000313 0.0032 <0.00322 0.000315 0.00322 0.00167 0.00024 0.0011 0.00086 J 0.00027 0.00128 0.00108 J 0.000272 0.00129 0.00047 J 0.00032 0.0011 <0.00128 0.000368 0.00128 0.000375 J 0.00037 0.00129 0.00067 J 0.0003 0.0011 0.0004 J 0.000341 0.00128 0.00052 J 0.000343 0.00129 <0.00112 0.00025 0.0011 <0.00128 0.00029 0.00128 <0.00129 0.000291 0.00129 0.00648 0.00056 0.0034 0.00492 0.000641 0.00384 0.00594 0.000645 0.00387 Page 4 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 0.257 J 0.19 0.519 0.489 J 0.232 0.633 0.254 J 0.228 0.623 555 J 399 2070 4.81 J 0.974 5.06 22.8 0.958 4.98 12500 34.2 104 <127 41.8 127 <125 41.1 125 0.0756 0.0215 0.0519 0.0619 J 0.0262 0.0633 <0.0623 0.0258 0.0623 <0.0104 0.0021 0.0104 <0.0127 0.00256 0.0127 <0.0125 0.00252 0.0125 0.0103 0.000389 0.00104 0.0102 0.000475 0.00127 0.00557 0.000467 0.00125 <0.00104 0.000285 0.00104 <0.00127 0.000348 0.00127 <0.00125 0.000342 0.00125 <0.00104 0.000752 0.00104 <0.00127 0.000918 0.00127 <0.00125 0.000903 0.00125 <0.00104 0.00044 0.00104 <0.00127 0.000537 0.00127 <0.00125 0.000528 0.00125 <0.00519 0.00121 0.00519 <0.00633 0.00148 0.00633 <0.00623 0.00146 0.00623 <0.00104 0.000268 0.00104 0.000544 J 0.000327 0.00127 <0.00125 0.000321 0.00125 0.00024 J V3 0.000209 0.00104 <0.00127 0.000254 0.00127 <0.00125 0.00025 0.00125 <0.00104 0.000214 0.00104 <0.00127 0.000261 0.00127 <0.00125 0.000256 0.00125 <0.00104 0.000257 0.00104 <0.00127 0.000314 0.00127 <0.00125 0.000309 0.00125 <0.00104 0.000199 0.00104 <0.00127 0.000243 0.00127 <0.00125 0.000239 0.00125 <0.00104 0.000232 0.00104 <0.00127 0.000284 0.00127 <0.00125 0.000279 0.00125 <0.00519 0.00104 0.00519 <0.00633 0.00127 0.00633 <0.00623 0.00125 0.00623 <0.00519 0.00107 0.00519 <0.00633 0.0013 0.00633 <0.00623 0.00128 0.00623 <0.00259 0.000674 0.00259 <0.00316 0.000823 0.00316 <0.00311 0.000809 0.00311 <0.00104 0.000233 0.00104 <0.00127 0.000285 0.00127 <0.00125 0.00028 0.00125 <0.00104 0.000717 0.00104 <0.00127 0.000875 0.00127 <0.00125 0.00086 0.00125 <0.00519 0.00197 0.00519 <0.00633 0.00241 0.00633 <0.00623 0.00237 0.00623 <0.00104 0.000259 0.00104 <0.00127 0.000316 0.00127 <0.00125 0.000311 0.00125 <0.00104 0.000363 0.00104 <0.00127 0.000443 0.00127 <0.00125 0.000436 0.00125 <0.00104 0.000441 0.00104 <0.00127 0.000538 0.00127 <0.00125 0.000529 0.00125 <0.00104 0.000622 0.00104 <0.00127 0.00076 0.00127 <0.00125 0.000747 0.00125 <0.00104 0.000861 0.00104 <0.00127 0.00105 0.00127 <0.00125 0.00103 0.00125 <0.00519 0.000298 0.00519 <0.00633 0.000363 0.00633 <0.00623 0.000357 0.00623 <0.00104 0.000278 0.00104 <0.00127 0.000339 0.00127 <0.00125 0.000334 0.00125 <0.00104 0.000467 0.00104 <0.00127 0.00057 0.00127 <0.00125 0.00056 0.00125 <0.00104 0.000368 0.00104 <0.00127 0.000449 0.00127 <0.00125 0.000442 0.00125 <0.00104 0.000493 0.00104 <0.00127 0.000601 0.00127 <0.00125 0.000591 0.00125 <0.00104 0.000519 0.00104 <0.00127 0.000633 0.00127 <0.00125 0.000623 0.00125 <0.00104 0.00017 0.00104 <0.00127 0.000208 0.00127 <0.00125 0.000204 0.00125 <0.00104 0.000389 0.00104 <0.00127 0.000475 0.00127 <0.00125 0.000467 0.00125 <0.00104 0.000233 0.00104 <0.00127 0.000285 0.00127 <0.00125 0.00028 0.00125 <0.00104 0.000441 0.00104 <0.00127 0.000538 0.00127 <0.00125 0.000529 0.00125 <0.00104 0.0007 0.00104 <0.00127 0.000855 0.00127 <0.00125 0.00084 0.00125 <0.00104 0.000389 0.00104 <0.00127 0.000475 0.00127 <0.00125 0.000467 0.00125 <0.00104 0.000229 0.00104 <0.00127 0.00028 0.00127 <0.00125 0.000275 0.00125 0.00513 0.000311 0.00104 0.00851 0.00038 0.00127 0.0027 0.000374 0.00125 <0.00104 0.000355 0.00104 <0.00127 0.000433 0.00127 <0.00125 0.000426 0.00125 <0.00104 0.000441 0.00104 0.00056 J 0.000538 0.00127 <0.00125 0.000529 0.00125 <0.00104 0.000212 0.00104 <0.00127 0.000258 0.00127 <0.00125 0.000254 0.00125 0.028 0.00485 0.0104 0.0133 0.00592 0.0127 <0.0125 0.00583 0.0125 11/09/2022 11/11/202211/09/2022 B-7 @ SURFACEB-6 @ SURFACE B-6 @ 19' L1558026-12 L1558026-13L1558026-11 Page 5 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Date Collected Client Sample ID Lab Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. P1: RPD value not applicable for sample concentrations less than 5 times the reporting limit. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites Bold value exceeds Method Detection Limit (MDL). Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 11/09/2022 11/11/202211/09/2022 B-7 @ SURFACEB-6 @ SURFACE B-6 @ 19' L1558026-12 L1558026-13L1558026-11 0.00165 B J 0.00104 0.00519 0.00157 B J 0.00127 0.00633 0.00128 B J 0.00125 0.00623 0.00252 J 0.000985 0.0104 0.00206 J 0.0012 0.0127 <0.0125 0.00118 0.0125 <0.00104 0.000363 0.00104 <0.00127 0.000443 0.00127 <0.00125 0.000436 0.00125 <0.00519 0.00517 0.00519 <0.00633 0.0063 0.00633 <0.00623 0.0062 0.00623 0.000742 J V3 0.000214 0.00104 0.00104 J 0.000261 0.00127 0.000371 J 0.000256 0.00125 <0.00104 0.000231 0.00104 <0.00127 0.000282 0.00127 <0.00125 0.000278 0.00125 <0.00104 0.000307 0.00104 <0.00127 0.000375 0.00127 <0.00125 0.000369 0.00125 <0.00104 0.00024 0.00104 <0.00127 0.000292 0.00127 <0.00125 0.000288 0.00125 <0.00104 0.000442 0.00104 <0.00127 0.000539 0.00127 <0.00125 0.00053 0.00125 0.000492 J 0.000337 0.00104 <0.00127 0.000411 0.00127 <0.00125 0.000405 0.00125 0.0209 0.00128 0.00519 0.017 0.00156 0.00633 0.00737 0.00153 0.00623 <0.00104 0.000317 0.00104 <0.00127 0.000387 0.00127 <0.00125 0.000381 0.00125 <0.00104 0.000402 0.00104 <0.00127 0.000491 0.00127 <0.00125 0.000483 0.00125 <0.00104 0.000384 0.00104 <0.00127 0.000468 0.00127 <0.00125 0.000461 0.00125 <0.00104 0.000441 0.00104 <0.00127 0.000538 0.00127 <0.00125 0.000529 0.00125 <0.00104 0.000207 0.00104 <0.00127 0.000253 0.00127 <0.00125 0.000249 0.00125 <0.00519 0.000369 0.00519 <0.00633 0.000451 0.00633 <0.00623 0.000443 0.00623 <0.00259 0.000253 0.00259 <0.00316 0.000309 0.00316 <0.00311 0.000304 0.00311 0.00317 V3 0.000219 0.00104 0.00195 0.000267 0.00127 0.000773 J 0.000263 0.00125 0.0014 V3 0.000298 0.00104 0.000689 J 0.000363 0.00127 <0.00125 0.000357 0.00125 0.00145 V3 0.000276 0.00104 0.000733 J 0.000337 0.00127 <0.00125 0.000331 0.00125 <0.00104 0.000234 0.00104 <0.00127 0.000286 0.00127 <0.00125 0.000281 0.00125 0.0142 0.000519 0.00311 0.00689 0.000633 0.0038 0.00324 J 0.000623 0.00374 Page 6 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 0.401 J 0.222 0.607 0.444 J 0.229 0.626 0.416 J 0.234 0.64 <4.86 0.934 4.86 7.07 0.964 5.01 4.46 J 0.984 5.12 <121 40.1 121 630 J3 J6 41.3 125 112 J 42.2 128 <0.0607 0.0251 0.0607 0.594 0.0259 0.0626 0.164 0.0265 0.064 <0.0121 0.00245 0.0121 <0.0125 0.00253 0.0125 <0.0128 0.00258 0.0128 0.00831 0.000456 0.00121 0.0187 0.00047 0.00125 0.017 0.00048 0.00128 <0.00121 0.000334 0.00121 <0.00125 0.000345 0.00125 <0.00128 0.000352 0.00128 <0.00121 0.000881 0.00121 <0.00125 0.000908 0.00125 <0.00128 0.000927 0.00128 <0.00121 0.000515 0.00121 <0.00125 0.000531 0.00125 <0.00128 0.000542 0.00128 <0.00607 0.00142 0.00607 <0.00626 0.00147 0.00626 <0.00640 0.0015 0.0064 0.000317 J 0.000313 0.00121 <0.00125 0.000323 0.00125 <0.00128 0.00033 0.00128 <0.00121 0.000244 0.00121 <0.00125 0.000252 0.00125 <0.00128 0.000257 0.00128 <0.00121 0.00025 0.00121 <0.00125 0.000258 0.00125 <0.00128 0.000264 0.00128 <0.00121 0.000301 0.00121 <0.00125 0.000311 0.00125 <0.00128 0.000317 0.00128 <0.00121 0.000233 0.00121 <0.00125 0.000241 0.00125 <0.00128 0.000246 0.00128 <0.00121 0.000272 0.00121 <0.00125 0.000281 0.00125 <0.00128 0.000287 0.00128 <0.00607 0.00121 0.00607 <0.00626 0.00125 0.00626 <0.00640 0.00128 0.0064 <0.00607 0.00125 0.00607 <0.00626 0.00129 0.00626 <0.00640 0.00132 0.0064 <0.00304 0.00079 0.00304 <0.00313 0.000814 0.00313 <0.00320 0.000832 0.0032 <0.00121 0.000273 0.00121 <0.00125 0.000282 0.00125 <0.00128 0.000288 0.00128 <0.00121 0.000839 0.00121 <0.00125 0.000866 0.00125 <0.00128 0.000884 0.00128 <0.00607 0.00231 0.00607 <0.00626 0.00238 0.00626 <0.00640 0.00243 0.0064 <0.00121 0.000304 0.00121 <0.00125 0.000313 0.00125 <0.00128 0.00032 0.00128 <0.00121 0.000425 0.00121 <0.00125 0.000439 0.00125 <0.00128 0.000448 0.00128 <0.00121 0.000516 0.00121 <0.00125 0.000533 0.00125 <0.00128 0.000544 0.00128 <0.00121 0.000729 0.00121 <0.00125 0.000752 0.00125 <0.00128 0.000768 0.00128 <0.00121 0.00101 0.00121 <0.00125 0.00104 0.00125 <0.00128 0.00106 0.00128 <0.00607 0.000349 0.00607 <0.00626 0.00036 0.00626 <0.00640 0.000367 0.0064 <0.00121 0.000326 0.00121 <0.00125 0.000336 0.00125 <0.00128 0.000343 0.00128 <0.00121 0.000547 0.00121 <0.00125 0.000564 0.00125 <0.00128 0.000576 0.00128 <0.00121 0.000431 0.00121 <0.00125 0.000445 0.00125 <0.00128 0.000454 0.00128 <0.00121 0.000577 0.00121 <0.00125 0.000595 0.00125 <0.00128 0.000608 0.00128 <0.00121 0.000607 0.00121 <0.00125 0.000626 0.00125 <0.00128 0.00064 0.00128 <0.00121 0.000199 0.00121 <0.00125 0.000205 0.00125 <0.00128 0.00021 0.00128 <0.00121 0.000456 0.00121 <0.00125 0.00047 0.00125 <0.00128 0.00048 0.00128 <0.00121 0.000273 0.00121 <0.00125 0.000282 0.00125 <0.00128 0.000288 0.00128 <0.00121 0.000516 0.00121 <0.00125 0.000533 0.00125 <0.00128 0.000544 0.00128 <0.00121 0.00082 0.00121 <0.00125 0.000846 0.00125 <0.00128 0.000864 0.00128 <0.00121 0.000456 0.00121 <0.00125 0.00047 0.00125 <0.00128 0.00048 0.00128 <0.00121 0.000268 0.00121 <0.00125 0.000277 0.00125 <0.00128 0.000283 0.00128 0.00675 0.000364 0.00121 0.00578 0.000376 0.00125 0.00481 0.000384 0.00128 <0.00121 0.000415 0.00121 <0.00125 0.000429 0.00125 <0.00128 0.000438 0.00128 <0.00121 0.000516 0.00121 <0.00125 0.000533 0.00125 <0.00128 0.000544 0.00128 <0.00121 0.000248 0.00121 <0.00125 0.000256 0.00125 <0.00128 0.000261 0.00128 <0.0121 0.00568 0.0121 0.0751 0.00586 0.0125 0.0345 0.00599 0.0128 11/11/2022 11/10/2022 11/10/2022 B-7 @ 7'B-8 @ SURFACE B-8 @ 3' L1558026-14 L1558026-15 L1558026-16 Page 7 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Date Collected Client Sample ID Lab Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. P1: RPD value not applicable for sample concentrations less than 5 times the reporting limit. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites Bold value exceeds Method Detection Limit (MDL). Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 11/11/2022 11/10/2022 11/10/2022 B-7 @ 7'B-8 @ SURFACE B-8 @ 3' L1558026-14 L1558026-15 L1558026-16 <0.00607 0.00121 0.00607 0.00187 B J 0.00125 0.00626 0.00188 B J 0.00128 0.0064 <0.0121 0.00115 0.0121 0.00395 J 0.00119 0.0125 0.00193 J 0.00122 0.0128 <0.00121 0.000425 0.00121 <0.00125 0.000439 0.00125 <0.00128 0.000448 0.00128 <0.00607 0.00605 0.00607 <0.00626 0.00624 0.00626 <0.00640 0.00637 0.0064 0.000921 J 0.00025 0.00121 0.000738 J 0.000258 0.00125 0.000659 J 0.000264 0.00128 <0.00121 0.000271 0.00121 <0.00125 0.000279 0.00125 <0.00128 0.000285 0.00128 <0.00121 0.00036 0.00121 <0.00125 0.000371 0.00125 <0.00128 0.000379 0.00128 <0.00121 0.000281 0.00121 <0.00125 0.000289 0.00125 <0.00128 0.000296 0.00128 <0.00121 0.000517 0.00121 <0.00125 0.000534 0.00125 <0.00128 0.000545 0.00128 <0.00121 0.000395 0.00121 <0.00125 0.000407 0.00125 <0.00128 0.000416 0.00128 0.0136 0.00149 0.00607 0.0219 0.00154 0.00626 0.0184 0.00157 0.0064 <0.00121 0.000372 0.00121 <0.00125 0.000383 0.00125 <0.00128 0.000391 0.00128 <0.00121 0.000471 0.00121 <0.00125 0.000486 0.00125 <0.00128 0.000496 0.00128 <0.00121 0.000449 0.00121 <0.00125 0.000464 0.00125 <0.00128 0.000473 0.00128 <0.00121 0.000516 0.00121 <0.00125 0.000533 0.00125 <0.00128 0.000544 0.00128 <0.00121 0.000243 0.00121 <0.00125 0.000251 0.00125 <0.00128 0.000256 0.00128 <0.00607 0.000432 0.00607 <0.00626 0.000446 0.00626 <0.00640 0.000455 0.0064 <0.00304 0.000296 0.00304 <0.00313 0.000306 0.00313 <0.00320 0.000312 0.0032 0.00168 0.000256 0.00121 0.00129 0.000264 0.00125 0.00112 J 0.00027 0.00128 0.000527 J 0.000349 0.00121 0.000527 J 0.00036 0.00125 0.000439 J 0.000367 0.00128 0.000673 J 0.000323 0.00121 0.000595 J 0.000333 0.00125 0.000496 J 0.00034 0.00128 <0.00121 0.000275 0.00121 <0.00125 0.000283 0.00125 <0.00128 0.000289 0.00128 0.00553 0.000607 0.00364 0.00804 0.000626 0.00376 0.00651 0.00064 0.00384 Page 8 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 0.283 J 0.206 0.562 0.362 J 0.21 0.573 0.32 J 0.243 0.665 4.4 J 0.865 4.5 4.58 J 0.881 4.58 894 V 20.5 106 318 37.1 112 88.2 J 37.8 115 1830 43.9 133 0.107 0.0233 0.0562 0.0617 0.0237 0.0573 0.152 0.0275 0.0665 <0.0112 0.00227 0.0112 <0.0115 0.00231 0.0115 <0.0133 0.00268 0.0133 0.00455 0.000422 0.00112 0.00569 0.00043 0.00115 0.0121 0.000498 0.00133 <0.00112 0.000309 0.00112 <0.00115 0.000315 0.00115 <0.00133 0.000366 0.00133 <0.00112 0.000815 0.00112 <0.00115 0.00083 0.00115 <0.00133 0.000964 0.00133 <0.00112 0.000477 0.00112 <0.00115 0.000486 0.00115 <0.00133 0.000564 0.00133 <0.00562 0.00132 0.00562 <0.00573 0.00134 0.00573 <0.00665 0.00156 0.00665 <0.00112 0.00029 0.00112 <0.00115 0.000296 0.00115 <0.00133 0.000343 0.00133 <0.00112 0.000226 0.00112 <0.00115 0.00023 0.00115 <0.00133 0.000267 0.00133 <0.00112 0.000232 0.00112 <0.00115 0.000236 0.00115 <0.00133 0.000274 0.00133 <0.00112 0.000279 0.00112 <0.00115 0.000284 0.00115 <0.00133 0.00033 0.00133 <0.00112 0.000216 0.00112 <0.00115 0.00022 0.00115 <0.00133 0.000255 0.00133 <0.00112 0.000252 0.00112 <0.00115 0.000257 0.00115 <0.00133 0.000298 0.00133 <0.00562 0.00112 0.00562 <0.00573 0.00115 0.00573 <0.00665 0.00133 0.00665 <0.00562 0.00116 0.00562 <0.00573 0.00118 0.00573 <0.00665 0.00137 0.00665 <0.00281 0.000731 0.00281 <0.00286 0.000745 0.00286 <0.00332 0.000864 0.00332 <0.00112 0.000253 0.00112 <0.00115 0.000258 0.00115 <0.00133 0.000299 0.00133 <0.00112 0.000777 0.00112 <0.00115 0.000791 0.00115 <0.00133 0.000918 0.00133 <0.00562 0.00214 0.00562 <0.00573 0.00218 0.00573 <0.00665 0.00253 0.00665 <0.00112 0.000281 0.00112 <0.00115 0.000286 0.00115 <0.00133 0.000332 0.00133 <0.00112 0.000394 0.00112 <0.00115 0.000401 0.00115 <0.00133 0.000465 0.00133 <0.00112 0.000478 0.00112 <0.00115 0.000487 0.00115 <0.00133 0.000565 0.00133 <0.00112 0.000675 0.00112 <0.00115 0.000687 0.00115 <0.00133 0.000797 0.00133 <0.00112 0.000933 0.00112 <0.00115 0.000951 0.00115 <0.00133 0.0011 0.00133 <0.00562 0.000323 0.00562 <0.00573 0.000329 0.00573 <0.00665 0.000381 0.00665 <0.00112 0.000301 0.00112 <0.00115 0.000307 0.00115 <0.00133 0.000356 0.00133 <0.00112 0.000506 0.00112 <0.00115 0.000515 0.00115 <0.00133 0.000598 0.00133 <0.00112 0.000399 0.00112 <0.00115 0.000407 0.00115 <0.00133 0.000472 0.00133 <0.00112 0.000534 0.00112 <0.00115 0.000544 0.00115 <0.00133 0.000631 0.00133 <0.00112 0.000562 0.00112 <0.00115 0.000573 0.00115 <0.00133 0.000665 0.00133 <0.00112 0.000184 0.00112 <0.00115 0.000188 0.00115 <0.00133 0.000218 0.00133 <0.00112 0.000422 0.00112 <0.00115 0.00043 0.00115 <0.00133 0.000498 0.00133 <0.00112 0.000253 0.00112 <0.00115 0.000258 0.00115 <0.00133 0.000299 0.00133 <0.00112 0.000478 0.00112 <0.00115 0.000487 0.00115 <0.00133 0.000565 0.00133 <0.00112 0.000759 0.00112 <0.00115 0.000773 0.00115 <0.00133 0.000897 0.00133 <0.00112 0.000422 0.00112 <0.00115 0.00043 0.00115 <0.00133 0.000498 0.00133 <0.00112 0.000249 0.00112 <0.00115 0.000253 0.00115 <0.00133 0.000294 0.00133 0.00245 0.000337 0.00112 0.0034 0.000344 0.00115 0.0036 0.000399 0.00133 <0.00112 0.000385 0.00112 <0.00115 0.000392 0.00115 <0.00133 0.000455 0.00133 <0.00112 0.000478 0.00112 <0.00115 0.000487 0.00115 <0.00133 0.000565 0.00133 <0.00112 0.000229 0.00112 <0.00115 0.000234 0.00115 <0.00133 0.000271 0.00133 0.0271 0.00526 0.0112 0.0162 0.00536 0.0115 0.0225 0.00622 0.0133 11/09/2022 B-9 @ SURFACE 11/09/2022 11/11/2022 B-9 @ 2'B-12 @ SURFACE L1558026-18 L1558026-40L1558026-17 Page 9 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Date Collected Client Sample ID Lab Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. P1: RPD value not applicable for sample concentrations less than 5 times the reporting limit. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites Bold value exceeds Method Detection Limit (MDL). Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 11/09/2022 B-9 @ SURFACE 11/09/2022 11/11/2022 B-9 @ 2'B-12 @ SURFACE L1558026-18 L1558026-40L1558026-17 0.00116 B J 0.00112 0.00562 0.0014 B J 0.00115 0.00573 0.00153 B J 0.00133 0.00665 0.00145 J 0.00107 0.0112 0.00186 J 0.00109 0.0115 0.0126 J 0.00126 0.0133 <0.00112 0.000394 0.00112 <0.00115 0.000401 0.00115 <0.00133 0.000465 0.00133 <0.00562 0.0056 0.00562 <0.00573 0.0057 0.00573 <0.00665 0.00662 0.00665 0.000362 J 0.000232 0.00112 0.000443 J 0.000236 0.00115 0.00061 J 0.000274 0.00133 <0.00112 0.000251 0.00112 <0.00115 0.000255 0.00115 <0.00133 0.000296 0.00133 <0.00112 0.000333 0.00112 <0.00115 0.000339 0.00115 <0.00133 0.000393 0.00133 <0.00112 0.00026 0.00112 <0.00115 0.000265 0.00115 <0.00133 0.000307 0.00133 <0.00112 0.000479 0.00112 <0.00115 0.000488 0.00115 <0.00133 0.000566 0.00133 <0.00112 0.000365 0.00112 <0.00115 0.000372 0.00115 <0.00133 0.000432 0.00133 0.00648 0.00138 0.00562 0.00929 0.00141 0.00573 0.0136 0.00163 0.00665 <0.00112 0.000344 0.00112 <0.00115 0.00035 0.00115 <0.00133 0.000407 0.00133 <0.00112 0.000436 0.00112 <0.00115 0.000444 0.00115 <0.00133 0.000516 0.00133 <0.00112 0.000416 0.00112 <0.00115 0.000424 0.00115 <0.00133 0.000492 0.00133 <0.00112 0.000478 0.00112 <0.00115 0.000487 0.00115 <0.00133 0.000565 0.00133 <0.00112 0.000225 0.00112 <0.00115 0.000229 0.00115 <0.00133 0.000266 0.00133 <0.00562 0.0004 0.00562 <0.00573 0.000408 0.00573 <0.00665 0.000473 0.00665 <0.00281 0.000274 0.00281 <0.00286 0.000279 0.00286 <0.00332 0.000324 0.00332 0.00134 0.000237 0.00112 0.00141 0.000242 0.00115 0.00237 0.00028 0.00133 0.000404 J 0.000323 0.00112 0.000407 J 0.000329 0.00115 0.00088 J 0.000381 0.00133 0.000569 J 0.000299 0.00112 0.000605 J 0.000305 0.00115 0.0012 J 0.000354 0.00133 <0.00112 0.000254 0.00112 <0.00115 0.000259 0.00115 <0.00133 0.0003 0.00133 0.00358 0.000562 0.00337 0.00425 0.000573 0.00344 0.0113 0.000665 0.00399 Page 10 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 13.9 0.222 0.608 0.406 J 0.214 0.585 0.345 J 0.209 0.572 1320 4.68 24.3 9.4 0.899 4.68 5.68 0.879 4.57 2230 40.1 122 116 J 38.6 117 87.3 J 37.7 114 0.194 0.0252 0.0608 0.0519 J 0.0242 0.0585 0.0493 J 0.0237 0.0572 <0.0122 0.00245 0.0122 <0.0117 0.00236 0.0117 <0.0114 0.00231 0.0114 0.0113 0.000456 0.00122 0.00897 0.000439 0.00117 0.0138 0.000429 0.00114 <0.00122 0.000334 0.00122 <0.00117 0.000322 0.00117 <0.00114 0.000314 0.00114 <0.00122 0.000881 0.00122 <0.00117 0.000848 0.00117 <0.00114 0.000829 0.00114 <0.00122 0.000515 0.00122 <0.00117 0.000496 0.00117 <0.00114 0.000485 0.00114 <0.00608 0.00142 0.00608 <0.00585 0.00137 0.00585 <0.00572 0.00134 0.00572 0.0916 0.000314 0.00122 <0.00117 0.000302 0.00117 <0.00114 0.000295 0.00114 0.0367 0.000244 0.00122 <0.00117 0.000235 0.00117 <0.00114 0.00023 0.00114 <0.00122 0.00025 0.00122 <0.00117 0.000241 0.00117 <0.00114 0.000236 0.00114 <0.00122 0.000301 0.00122 <0.00117 0.00029 0.00117 <0.00114 0.000284 0.00114 <0.00122 0.000233 0.00122 <0.00117 0.000225 0.00117 <0.00114 0.00022 0.00114 <0.00122 0.000272 0.00122 <0.00117 0.000262 0.00117 <0.00114 0.000256 0.00114 <0.00608 0.00122 0.00608 <0.00585 0.00117 0.00585 <0.00572 0.00114 0.00572 <0.00608 0.00125 0.00608 <0.00585 0.0012 0.00585 <0.00572 0.00118 0.00572 <0.00304 0.00079 0.00304 <0.00292 0.00076 0.00292 <0.00286 0.000743 0.00286 <0.00122 0.000273 0.00122 <0.00117 0.000263 0.00117 <0.00114 0.000257 0.00114 <0.00122 0.00084 0.00122 <0.00117 0.000808 0.00117 <0.00114 0.00079 0.00114 <0.00608 0.00231 0.00608 <0.00585 0.00222 0.00585 <0.00572 0.00217 0.00572 <0.00122 0.000304 0.00122 <0.00117 0.000292 0.00117 <0.00114 0.000286 0.00114 <0.00122 0.000425 0.00122 <0.00117 0.000409 0.00117 <0.00114 0.0004 0.00114 <0.00122 0.000517 0.00122 <0.00117 0.000497 0.00117 <0.00114 0.000486 0.00114 <0.00122 0.000729 0.00122 <0.00117 0.000702 0.00117 <0.00114 0.000686 0.00114 <0.00122 0.00101 0.00122 <0.00117 0.000971 0.00117 <0.00114 0.000949 0.00114 <0.00608 0.000349 0.00608 <0.00585 0.000336 0.00585 <0.00572 0.000328 0.00572 <0.00122 0.000326 0.00122 <0.00117 0.000313 0.00117 <0.00114 0.000306 0.00114 <0.00122 0.000547 0.00122 <0.00117 0.000526 0.00117 <0.00114 0.000515 0.00114 <0.00122 0.000431 0.00122 <0.00117 0.000415 0.00117 <0.00114 0.000406 0.00114 <0.00122 0.000577 0.00122 <0.00117 0.000556 0.00117 <0.00114 0.000543 0.00114 <0.00122 0.000608 0.00122 <0.00117 0.000585 0.00117 <0.00114 0.000572 0.00114 <0.00122 0.000199 0.00122 <0.00117 0.000192 0.00117 <0.00114 0.000188 0.00114 <0.00122 0.000456 0.00122 <0.00117 0.000439 0.00117 <0.00114 0.000429 0.00114 <0.00122 0.000273 0.00122 <0.00117 0.000263 0.00117 <0.00114 0.000257 0.00114 <0.00122 0.000517 0.00122 <0.00117 0.000497 0.00117 <0.00114 0.000486 0.00114 <0.00122 0.00082 0.00122 <0.00117 0.00079 0.00117 <0.00114 0.000772 0.00114 <0.00122 0.000456 0.00122 <0.00117 0.000439 0.00117 <0.00114 0.000429 0.00114 <0.00122 0.000269 0.00122 <0.00117 0.000259 0.00117 <0.00114 0.000253 0.00114 2.47 0.0217 0.0722 0.00474 0.000351 0.00117 0.00535 0.000343 0.00114 <0.00122 0.000416 0.00122 <0.00117 0.0004 0.00117 <0.00114 0.000391 0.00114 0.0664 0.000517 0.00122 <0.00117 0.000497 0.00117 <0.00114 0.000486 0.00114 0.00954 0.000248 0.00122 <0.00117 0.000239 0.00117 <0.00114 0.000233 0.00114 0.0723 0.00569 0.0122 0.0123 0.00547 0.0117 0.0183 0.00535 0.0114 11/11/2022 11/11/2022 11/11/2022 B-12 @ 4'B-13 @ SURFACE B-13 @ 3' L1558026-41 L1558026-42 L1558026-43 Page 11 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Date Collected Client Sample ID Lab Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. P1: RPD value not applicable for sample concentrations less than 5 times the reporting limit. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites Bold value exceeds Method Detection Limit (MDL). Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 11/11/2022 11/11/2022 11/11/2022 B-12 @ 4'B-13 @ SURFACE B-13 @ 3' L1558026-41 L1558026-42 L1558026-43 <0.00608 0.00122 0.00608 0.00122 B J 0.00117 0.00585 0.00124 B J 0.00114 0.00572 <0.0122 0.00115 0.0122 <0.0117 0.00111 0.0117 <0.0114 0.00109 0.0114 0.00715 0.000425 0.00122 <0.00117 0.000409 0.00117 <0.00114 0.0004 0.00114 1.86 0.359 0.362 <0.00585 0.00583 0.00585 <0.00572 0.0057 0.00572 1.9 0.0149 0.0722 0.00109 J V3 0.000241 0.00117 0.000796 J V3 0.000236 0.00114 <0.00122 0.000271 0.00122 <0.00117 0.000261 0.00117 <0.00114 0.000255 0.00114 <0.00122 0.00036 0.00122 <0.00117 0.000346 0.00117 <0.00114 0.000339 0.00114 <0.00122 0.000281 0.00122 <0.00117 0.00027 0.00117 <0.00114 0.000264 0.00114 <0.00122 0.000518 0.00122 <0.00117 0.000498 0.00117 <0.00114 0.000487 0.00114 <0.00122 0.000395 0.00122 <0.00117 0.00038 0.00117 <0.00114 0.000372 0.00114 0.00914 0.00149 0.00608 0.00974 0.00144 0.00585 0.0154 0.00141 0.00572 <0.00122 0.000372 0.00122 <0.00117 0.000358 0.00117 <0.00114 0.00035 0.00114 <0.00122 0.000472 0.00122 <0.00117 0.000454 0.00117 <0.00114 0.000444 0.00114 <0.00122 0.00045 0.00122 <0.00117 0.000433 0.00117 <0.00114 0.000423 0.00114 <0.00122 0.000517 0.00122 <0.00117 0.000497 0.00117 <0.00114 0.000486 0.00114 <0.00122 0.000243 0.00122 <0.00117 0.000234 0.00117 <0.00114 0.000229 0.00114 <0.00608 0.000433 0.00608 <0.00585 0.000416 0.00585 <0.00572 0.000407 0.00572 <0.00304 0.000297 0.00304 <0.00292 0.000285 0.00292 <0.00286 0.000279 0.00286 16.2 E 0.0153 0.0722 0.00366 V3 0.000247 0.00117 0.00368 0.000241 0.00114 3.62 0.0207 0.0722 0.00124 V3 0.000336 0.00117 0.000672 J V3 0.000328 0.00114 4.9 0.0192 0.0722 0.00143 V3 0.000311 0.00117 0.000724 J V3 0.000304 0.00114 <0.00122 0.000275 0.00122 <0.00117 0.000264 0.00117 <0.00114 0.000258 0.00114 13.1 0.0362 0.217 0.00907 0.000585 0.00351 0.00822 0.000572 0.00343 Page 12 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 0.252 J 0.24 0.655 0.964 V3 0.224 0.613 0.363 J 0.221 0.603 1.98 J 1.01 5.24 3.64 J 0.942 4.9 68.5 4.64 24.1 78.3 J 43.2 131 71.1 J 40.4 123 409 39.8 121 0.0393 J 0.0271 0.0655 0.0807 V3 0.0254 0.0613 0.0967 0.025 0.0603 <0.0131 0.00265 0.0131 <0.0123 0.00248 0.0123 <0.0121 0.00244 0.0121 0.00464 0.000491 0.00131 0.0274 V3 0.000459 0.00123 0.0177 0.000452 0.00121 <0.00131 0.00036 0.00131 <0.00123 0.000337 0.00123 <0.00121 0.000332 0.00121 <0.00131 0.00095 0.00131 <0.00123 0.000888 0.00123 <0.00121 0.000874 0.00121 <0.00131 0.000555 0.00131 <0.00123 0.00052 0.00123 <0.00121 0.000511 0.00121 <0.00655 0.00153 0.00655 <0.00613 0.00143 0.00613 <0.00603 0.00141 0.00603 <0.00131 0.000338 0.00131 0.000902 J V3 0.000316 0.00123 <0.00121 0.000311 0.00121 <0.00131 0.000263 0.00131 0.000458 J V3 0.000246 0.00123 <0.00121 0.000242 0.00121 <0.00131 0.00027 0.00131 <0.00123 0.000252 0.00123 <0.00121 0.000248 0.00121 <0.00131 0.000325 0.00131 <0.00123 0.000304 0.00123 <0.00121 0.000299 0.00121 <0.00131 0.000252 0.00131 <0.00123 0.000235 0.00123 <0.00121 0.000232 0.00121 <0.00131 0.000293 0.00131 <0.00123 0.000274 0.00123 <0.00121 0.00027 0.00121 <0.00655 0.00131 0.00655 <0.00613 0.00123 0.00613 <0.00603 0.00121 0.00603 <0.00655 0.00135 0.00655 <0.00613 0.00126 0.00613 <0.00603 0.00124 0.00603 <0.00328 0.000852 0.00328 <0.00306 0.000796 0.00306 <0.00302 0.000784 0.00302 <0.00131 0.000295 0.00131 <0.00123 0.000276 0.00123 <0.00121 0.000271 0.00121 <0.00131 0.000905 0.00131 <0.00123 0.000847 0.00123 <0.00121 0.000833 0.00121 <0.00655 0.00249 0.00655 <0.00613 0.00233 0.00613 <0.00603 0.00229 0.00603 <0.00131 0.000328 0.00131 <0.00123 0.000306 0.00123 <0.00121 0.000302 0.00121 <0.00131 0.000459 0.00131 <0.00123 0.000429 0.00123 <0.00121 0.000422 0.00121 <0.00131 0.000557 0.00131 <0.00123 0.000521 0.00123 <0.00121 0.000513 0.00121 <0.00131 0.000786 0.00131 <0.00123 0.000735 0.00123 <0.00121 0.000724 0.00121 <0.00131 0.00109 0.00131 <0.00123 0.00102 0.00123 <0.00121 0.001 0.00121 <0.00655 0.000376 0.00655 <0.00613 0.000352 0.00613 <0.00603 0.000346 0.00603 <0.00131 0.000351 0.00131 <0.00123 0.000328 0.00123 <0.00121 0.000323 0.00121 <0.00131 0.00059 0.00131 <0.00123 0.000551 0.00123 <0.00121 0.000543 0.00121 <0.00131 0.000465 0.00131 <0.00123 0.000435 0.00123 <0.00121 0.000428 0.00121 <0.00131 0.000622 0.00131 <0.00123 0.000582 0.00123 <0.00121 0.000573 0.00121 <0.00131 0.000655 0.00131 <0.00123 0.000613 0.00123 <0.00121 0.000603 0.00121 <0.00131 0.000215 0.00131 <0.00123 0.000201 0.00123 <0.00121 0.000198 0.00121 <0.00131 0.000491 0.00131 <0.00123 0.000459 0.00123 <0.00121 0.000452 0.00121 <0.00131 0.000295 0.00131 <0.00123 0.000276 0.00123 <0.00121 0.000271 0.00121 <0.00131 0.000557 0.00131 <0.00123 0.000521 0.00123 <0.00121 0.000513 0.00121 <0.00131 0.000884 0.00131 <0.00123 0.000827 0.00123 <0.00121 0.000814 0.00121 <0.00131 0.000491 0.00131 <0.00123 0.000459 0.00123 <0.00121 0.000452 0.00121 <0.00131 0.00029 0.00131 <0.00123 0.000271 0.00123 <0.00121 0.000267 0.00121 0.00305 0.000393 0.00131 0.0232 V3 0.000368 0.00123 0.00422 0.000362 0.00121 <0.00131 0.000448 0.00131 <0.00123 0.000419 0.00123 <0.00121 0.000413 0.00121 <0.00131 0.000557 0.00131 0.00134 V3 0.000521 0.00123 <0.00121 0.000513 0.00121 <0.00131 0.000267 0.00131 <0.00123 0.00025 0.00123 <0.00121 0.000246 0.00121 0.00893 J 0.00613 0.0131 <0.0123 0.00573 0.0123 0.0265 0.00564 0.0121 11/09/2022 11/09/2022 11/09/2022 B-14 @ SURFACE B-14 @ 10'B-15 @ SURFACE L1558026-44 L1558026-45 L1558026-46 Page 13 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Date Collected Client Sample ID Lab Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. P1: RPD value not applicable for sample concentrations less than 5 times the reporting limit. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites Bold value exceeds Method Detection Limit (MDL). Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 11/09/2022 11/09/2022 11/09/2022 B-14 @ SURFACE B-14 @ 10'B-15 @ SURFACE L1558026-44 L1558026-45 L1558026-46 0.00143 B J 0.00131 0.00655 0.00368B J V3 0.00123 0.00613 0.00236 B J 0.00121 0.00603 <0.0131 0.00124 0.0131 <0.0123 0.00116 0.0123 0.00151 J 0.00115 0.0121 <0.00131 0.000459 0.00131 <0.00123 0.000429 0.00123 <0.00121 0.000422 0.00121 <0.00655 0.00652 0.00655 <0.00613 0.0061 0.00613 <0.00603 0.00601 0.00603 0.000453 J 0.00027 0.00131 0.00252 V3 0.000252 0.00123 0.000499 J 0.000248 0.00121 <0.00131 0.000292 0.00131 <0.00123 0.000273 0.00123 <0.00121 0.000269 0.00121 <0.00131 0.000388 0.00131 <0.00123 0.000363 0.00123 <0.00121 0.000357 0.00121 <0.00131 0.000303 0.00131 <0.00123 0.000283 0.00123 <0.00121 0.000279 0.00121 <0.00131 0.000558 0.00131 <0.00123 0.000522 0.00123 <0.00121 0.000514 0.00121 <0.00131 0.000426 0.00131 <0.00123 0.000398 0.00123 <0.00121 0.000392 0.00121 0.00835 0.00161 0.00655 0.0483 V3 0.00151 0.00613 0.0206 0.00148 0.00603 <0.00131 0.000401 0.00131 <0.00123 0.000375 0.00123 <0.00121 0.000369 0.00121 <0.00131 0.000508 0.00131 <0.00123 0.000475 0.00123 <0.00121 0.000468 0.00121 <0.00131 0.000485 0.00131 <0.00123 0.000453 0.00123 <0.00121 0.000446 0.00121 <0.00131 0.000557 0.00131 <0.00123 0.000521 0.00123 <0.00121 0.000513 0.00121 <0.00131 0.000262 0.00131 <0.00123 0.000245 0.00123 <0.00121 0.000241 0.00121 <0.00655 0.000466 0.00655 <0.00613 0.000436 0.00613 <0.00603 0.000429 0.00603 <0.00328 0.00032 0.00328 <0.00306 0.000299 0.00306 <0.00302 0.000294 0.00302 0.000924 J 0.000276 0.00131 0.0043 V3 0.000259 0.00123 0.000896 J 0.000255 0.00121 <0.00131 0.000376 0.00131 0.00118 J V3 0.000352 0.00123 <0.00121 0.000346 0.00121 <0.00131 0.000348 0.00131 0.00164 V3 0.000326 0.00123 0.000449 J 0.000321 0.00121 <0.00131 0.000296 0.00131 <0.00123 0.000277 0.00123 <0.00121 0.000273 0.00121 0.00393 J 0.000655 0.00393 0.018 V3 0.000613 0.00368 0.00755 0.000603 0.00362 Page 14 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 1.14 V3 0.229 0.626 0.315 J 0.241 0.659 1.06 V3 0.226 0.618 1.65 J 0.963 5.01 <5.27 1.01 5.27 2.52 J 0.941 4.9 122 J 41.3 125 115 J 43.5 132 83.4 J 40.4 122 0.129 V3 0.0259 0.0626 0.0622 J 0.0273 0.0659 0.12 V3 0.0256 0.0618 <0.0125 0.00253 0.0125 <0.0132 0.00266 0.0132 <0.0124 0.0025 0.0124 0.033 V3 0.00047 0.00125 0.00798 0.000494 0.00132 0.0323 V3 0.000464 0.00124 <0.00125 0.000345 0.00125 <0.00132 0.000363 0.00132 <0.00124 0.00034 0.00124 <0.00125 0.000908 0.00125 <0.00132 0.000956 0.00132 <0.00124 0.000896 0.00124 <0.00125 0.000531 0.00125 <0.00132 0.000559 0.00132 <0.00124 0.000524 0.00124 <0.00626 0.00147 0.00626 <0.00659 0.00154 0.00659 <0.00618 0.00144 0.00618 0.000842 J V3 0.000323 0.00125 <0.00132 0.00034 0.00132 0.000886 J V3 0.000319 0.00124 0.000447 J V3 0.000252 0.00125 <0.00132 0.000265 0.00132 0.000521 J V3 0.000248 0.00124 <0.00125 0.000258 0.00125 <0.00132 0.000272 0.00132 <0.00124 0.000255 0.00124 <0.00125 0.000311 0.00125 <0.00132 0.000327 0.00132 <0.00124 0.000306 0.00124 <0.00125 0.000241 0.00125 <0.00132 0.000253 0.00132 <0.00124 0.000237 0.00124 <0.00125 0.000281 0.00125 <0.00132 0.000295 0.00132 <0.00124 0.000277 0.00124 <0.00626 0.00125 0.00626 <0.00659 0.00132 0.00659 <0.00618 0.00124 0.00618 <0.00626 0.00129 0.00626 <0.00659 0.00136 0.00659 <0.00618 0.00127 0.00618 <0.00313 0.000814 0.00313 <0.00330 0.000857 0.0033 <0.00310 0.000803 0.0031 <0.00125 0.000282 0.00125 <0.00132 0.000297 0.00132 <0.00124 0.000278 0.00124 <0.00125 0.000866 0.00125 <0.00132 0.000911 0.00132 <0.00124 0.000854 0.00124 <0.00626 0.00238 0.00626 <0.00659 0.00251 0.00659 <0.00618 0.00235 0.00618 <0.00125 0.000313 0.00125 <0.00132 0.00033 0.00132 <0.00124 0.00031 0.00124 <0.00125 0.000439 0.00125 <0.00132 0.000461 0.00132 <0.00124 0.000432 0.00124 <0.00125 0.000532 0.00125 <0.00132 0.00056 0.00132 <0.00124 0.000525 0.00124 <0.00125 0.000752 0.00125 <0.00132 0.000791 0.00132 <0.00124 0.000742 0.00124 <0.00125 0.00104 0.00125 <0.00132 0.00109 0.00132 <0.00124 0.00103 0.00124 <0.00626 0.00036 0.00626 <0.00659 0.000378 0.00659 <0.00618 0.000355 0.00618 <0.00125 0.000336 0.00125 <0.00132 0.000353 0.00132 <0.00124 0.000332 0.00124 <0.00125 0.000564 0.00125 <0.00132 0.000593 0.00132 <0.00124 0.000557 0.00124 <0.00125 0.000445 0.00125 <0.00132 0.000468 0.00132 <0.00124 0.000439 0.00124 <0.00125 0.000595 0.00125 <0.00132 0.000626 0.00132 <0.00124 0.000588 0.00124 <0.00125 0.000626 0.00125 <0.00132 0.000659 0.00132 <0.00124 0.000618 0.00124 <0.00125 0.000205 0.00125 <0.00132 0.000216 0.00132 <0.00124 0.000203 0.00124 <0.00125 0.00047 0.00125 <0.00132 0.000494 0.00132 <0.00124 0.000464 0.00124 <0.00125 0.000282 0.00125 <0.00132 0.000297 0.00132 <0.00124 0.000278 0.00124 <0.00125 0.000532 0.00125 <0.00132 0.00056 0.00132 <0.00124 0.000525 0.00124 <0.00125 0.000846 0.00125 <0.00132 0.00089 0.00132 <0.00124 0.000835 0.00124 <0.00125 0.00047 0.00125 <0.00132 0.000494 0.00132 <0.00124 0.000464 0.00124 <0.00125 0.000277 0.00125 <0.00132 0.000291 0.00132 <0.00124 0.000273 0.00124 0.0243 V3 0.000376 0.00125 0.00521 0.000396 0.00132 0.0259 V3 0.000371 0.00124 <0.00125 0.000428 0.00125 <0.00132 0.000451 0.00132 <0.00124 0.000422 0.00124 0.00137 V3 0.000532 0.00125 <0.00132 0.00056 0.00132 0.00148 V3 0.000525 0.00124 <0.00125 0.000256 0.00125 <0.00132 0.000269 0.00132 <0.00124 0.000252 0.00124 <0.0125 0.00586 0.0125 0.0128 J 0.00617 0.0132 <0.0124 0.00579 0.0124 11/09/2022 11/09/2022 11/09/2022 B-15 @ 12'B-140 @ SURFACE B-140 @ 10' L1558026-47 L1558026-50 L1558026-51 Page 15 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Date Collected Client Sample ID Lab Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. P1: RPD value not applicable for sample concentrations less than 5 times the reporting limit. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites Bold value exceeds Method Detection Limit (MDL). Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 11/09/2022 11/09/2022 11/09/2022 B-15 @ 12'B-140 @ SURFACE B-140 @ 10' L1558026-47 L1558026-50 L1558026-51 0.00456B J V3 0.00125 0.00626 0.00245 B J 0.00132 0.00659 0.00561 B J V3 0.00124 0.00618 0.0041 J V3 0.00119 0.0125 <0.0132 0.00125 0.0132 <0.0124 0.00117 0.0124 <0.00125 0.000439 0.00125 <0.00132 0.000461 0.00132 <0.00124 0.000432 0.00124 <0.00626 0.00624 0.00626 <0.00659 0.00657 0.00659 <0.00618 0.00616 0.00618 0.00258 V3 0.000258 0.00125 0.000694 J 0.000272 0.00132 0.00296 V3 0.000255 0.00124 <0.00125 0.000279 0.00125 <0.00132 0.000294 0.00132 <0.00124 0.000275 0.00124 <0.00125 0.000371 0.00125 <0.00132 0.00039 0.00132 <0.00124 0.000366 0.00124 <0.00125 0.000289 0.00125 <0.00132 0.000305 0.00132 <0.00124 0.000285 0.00124 <0.00125 0.000534 0.00125 <0.00132 0.000562 0.00132 <0.00124 0.000526 0.00124 <0.00125 0.000407 0.00125 <0.00132 0.000429 0.00132 <0.00124 0.000401 0.00124 0.052 V3 0.00154 0.00626 0.014 0.00162 0.00659 0.0529 V3 0.00152 0.00618 <0.00125 0.000383 0.00125 <0.00132 0.000403 0.00132 <0.00124 0.000378 0.00124 <0.00125 0.000486 0.00125 <0.00132 0.000512 0.00132 <0.00124 0.00048 0.00124 <0.00125 0.000464 0.00125 <0.00132 0.000488 0.00132 <0.00124 0.000458 0.00124 <0.00125 0.000532 0.00125 <0.00132 0.00056 0.00132 <0.00124 0.000525 0.00124 <0.00125 0.000251 0.00125 <0.00132 0.000264 0.00132 <0.00124 0.000247 0.00124 <0.00626 0.000446 0.00626 <0.00659 0.000469 0.00659 <0.00618 0.000441 0.00618 <0.00313 0.000306 0.00313 <0.00330 0.000322 0.0033 <0.00310 0.000301 0.0031 0.00418 V3 0.000264 0.00125 0.00129 J 0.000278 0.00132 0.00514 V3 0.000261 0.00124 0.00127 V3 0.00036 0.00125 0.000413 J 0.000378 0.00132 0.0014 V3 0.000355 0.00124 0.00164 V3 0.000333 0.00125 0.000517 J 0.000351 0.00132 0.00197 V3 0.000329 0.00124 <0.00125 0.000283 0.00125 <0.00132 0.000298 0.00132 <0.00124 0.000279 0.00124 0.0184 V3 0.000626 0.00376 0.00624 0.000659 0.00396 0.0234 V3 0.000618 0.00371 Page 16 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 TPH-DRO 68334-30-5 8015 mg/kg NE NE 500 5000 TRPH NE 9071B mg/kg NE NE 1000 10000 ACETONE 67-64-1 8260B mg/kg 61000 670000 NE NE ACRYLONITRILE 107-13-1 8260B mg/kg 0.25 1.1 NE NE BENZENE 71-43-2 8260B mg/kg 1.2 5.1 0.2 0.9 BROMOBENZENE 108-86-1 8260B mg/kg 290 1800 NE NE BROMODICHLOROMETHANE 75-27-4 8260B mg/kg 0.29 1.3 NE NE BROMOFORM 75-25-2 8260B mg/kg 19 86 NE NE BROMOMETHANE 74-83-9 8260B mg/kg 6.8 30 NE NE N-BUTYLBENZENE 104-51-8 8260B mg/kg 3900 58000 NE NE SEC-BUTYLBENZENE 135-98-8 8260B mg/kg 7800 120000 NE NE TERT-BUTYLBENZENE 98-06-6 8260B mg/kg 7800 120000 NE NE CARBON TETRACHLORIDE 56-23-5 8260B mg/kg 0.65 2.9 NE NE CHLOROBENZENE 108-90-7 8260B mg/kg 280 1300 NE NE CHLORODIBROMOMETHANE 124-48-1 8260B mg/kg 8.3 39 NE NE CHLOROETHANE 75-00-3 8260B mg/kg 14000 57000 NE NE CHLOROFORM 67-66-3 8260B mg/kg 0.32 1.4 NE NE CHLOROMETHANE 74-87-3 8260B mg/kg 110 460 NE NE 2-CHLOROTOLUENE 95-49-8 8260B mg/kg 1600 23000 NE NE 4-CHLOROTOLUENE 106-43-4 8260B mg/kg 1600 23000 NE NE 1,2-DIBROMO-3-CHLOROPROPANE 96-12-8 8260B mg/kg 0.0053 0.064 NE NE 1,2-DIBROMOETHANE 106-93-4 8260B mg/kg 0.036 0.16 NE NE DIBROMOMETHANE 74-95-3 8260B mg/kg 24 99 NE NE 1,2-DICHLOROBENZENE 95-50-1 8260B mg/kg 1800 9300 NE NE 1,3-DICHLOROBENZENE 541-73-1 8260B mg/kg NE NE NE NE 1,4-DICHLOROBENZENE 106-46-7 8260B mg/kg 2.6 11 NE NE DICHLORODIFLUOROMETHANE 75-71-8 8260B mg/kg 87 370 NE NE 1,1-DICHLOROETHANE 75-34-3 8260B mg/kg 3.6 16 NE NE 1,2-DICHLOROETHANE 107-06-2 8260B mg/kg 0.46 2 NE NE 1,1-DICHLOROETHENE 75-35-4 8260B mg/kg 230 1000 NE NE CIS-1,2-DICHLOROETHENE 156-59-2 8260B mg/kg 160 2300 NE NE TRANS-1,2-DICHLOROETHENE 156-60-5 8260B mg/kg 70 300 NE NE 1,2-DICHLOROPROPANE 78-87-5 8260B mg/kg 2.5 11 NE NE 1,1-DICHLOROPROPENE 563-58-6 8260B mg/kg NE NE NE NE 1,3-DICHLOROPROPANE 142-28-9 8260B mg/kg 1600 23000 NE NE CIS-1,3-DICHLOROPROPENE 10061-01-5 8260B mg/kg NE NE NE NE TRANS-1,3-DICHLOROPROPENE 10061-02-6 8260B mg/kg NE NE NE NE 2,2-DICHLOROPROPANE 594-20-7 8260B mg/kg NE NE NE NE DI-ISOPROPYL ETHER 108-20-3 8260B mg/kg 2200 9400 NE NE ETHYLBENZENE 100-41-4 8260B mg/kg 5.8 25 5 23 HEXACHLORO-1,3-BUTADIENE 87-68-3 8260B mg/kg 1.2 5.3 NE NE ISOPROPYLBENZENE 98-82-8 8260B mg/kg 1900 9900 NE NE P-ISOPROPYLTOLUENE 99-87-6 8260B mg/kg NE NE NE NE 2-BUTANONE (MEK)78-93-3 8260B mg/kg 27000 190000 NE NE Date Collected Client Sample ID Lab Sample ID Result Q MDL RDL Result Q MDL RDL 0.626 J V3 0.23 0.629 0.729 V3 0.234 0.638 14.5 0.968 5.03 2.13 J 0.981 5.1 790 41.5 126 124 J 42.1 128 0.59 V3 0.0261 0.0629 0.205 V3 0.0264 0.064 <0.0126 0.00254 0.0126 <0.0128 0.00258 0.013 0.0325 V3 0.000472 0.00126 0.038 V3 0.000479 0.001 <0.00126 0.000346 0.00126 <0.00128 0.000351 0.001 <0.00126 0.000913 0.00126 <0.00128 0.000925 0.001 <0.00126 0.000534 0.00126 <0.00128 0.000541 0.001 <0.00629 0.00147 0.00629 <0.00638 0.00149 0.006 0.000357 J V3 0.000325 0.00126 0.000343 J V3 0.000329 0.001 <0.00126 0.000253 0.00126 <0.00128 0.000257 0.001 <0.00126 0.000259 0.00126 <0.00128 0.000263 0.001 <0.00126 0.000312 0.00126 <0.00128 0.000316 0.001 <0.00126 0.000242 0.00126 <0.00128 0.000245 0.001 <0.00126 0.000282 0.00126 <0.00128 0.000286 0.001 <0.00629 0.00126 0.00629 <0.00638 0.00128 0.006 <0.00629 0.0013 0.00629 <0.00638 0.00131 0.006 <0.00315 0.000818 0.00315 <0.00319 0.000829 0.003 <0.00126 0.000283 0.00126 <0.00128 0.000287 0.001 <0.00126 0.00087 0.00126 <0.00128 0.000882 0.001 <0.00629 0.00239 0.00629 <0.00638 0.00242 0.006 <0.00126 0.000315 0.00126 <0.00128 0.000319 0.001 <0.00126 0.000441 0.00126 <0.00128 0.000447 0.001 <0.00126 0.000535 0.00126 <0.00128 0.000542 0.001 <0.00126 0.000755 0.00126 <0.00128 0.000766 0.001 <0.00126 0.00104 0.00126 <0.00128 0.00106 0.001 <0.00629 0.000361 0.00629 <0.00638 0.000366 0.006 <0.00126 0.000337 0.00126 <0.00128 0.000342 0.001 <0.00126 0.000566 0.00126 <0.00128 0.000574 0.001 <0.00126 0.000447 0.00126 <0.00128 0.000453 0.001 <0.00126 0.000598 0.00126 <0.00128 0.000606 0.001 <0.00126 0.000629 0.00126 <0.00128 0.000638 0.001 <0.00126 0.000206 0.00126 <0.00128 0.000209 0.001 <0.00126 0.000472 0.00126 <0.00128 0.000479 0.001 <0.00126 0.000283 0.00126 <0.00128 0.000287 0.001 <0.00126 0.000535 0.00126 <0.00128 0.000542 0.001 <0.00126 0.00085 0.00126 <0.00128 0.000861 0.001 <0.00126 0.000472 0.00126 <0.00128 0.000479 0.001 <0.00126 0.000278 0.00126 <0.00128 0.000282 0.001 0.0105 V3 0.000378 0.00126 0.0122 V3 0.000383 0.001 <0.00126 0.00043 0.00126 <0.00128 0.000436 0.001 0.00075 J V3 0.000535 0.00126 0.000879 J V3 0.000542 0.001 <0.00126 0.000257 0.00126 <0.00128 0.00026 0.001 0.13 V3 0.00589 0.0126 0.0479 V3 0.00597 0.013 11/10/202211/10/2022 B-80 @ 3'B-80 @ SURFACE L1558026-53L1558026-52 Page 17 of 18 Table 4 - VOCs and Petroleum Hydrocarbons in Soil (2022 Investigation) Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units RSL Residential RSL Industrial ISL Tier 1 TPH-GRO 8006-61-9 8260B mg/kg NE NE 150 1500 Date Collected Client Sample ID Lab Sample ID METHYLENE CHLORIDE 75-09-2 8260B mg/kg 57 1000 NE NE 4-METHYL-2-PENTANONE (MIBK)108-10-1 8260B mg/kg 33000 140000 NE NE METHYL TERT-BUTYL ETHER 1634-04-4 8260B mg/kg 47 210 0.3 0.3 NAPHTHALENE 91-20-3 8260B mg/kg 2 8.6 51 51 N-PROPYLBENZENE 103-65-1 8260B mg/kg 3800 24000 NE NE STYRENE 100-42-5 8260B mg/kg 6000 35000 NE NE 1,1,1,2-TETRACHLOROETHANE 630-20-6 8260B mg/kg 2 8.8 NE NE 1,1,2,2-TETRACHLOROETHANE 79-34-5 8260B mg/kg 0.6 2.7 NE NE 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 8260B mg/kg 6700 28000 NE NE TETRACHLOROETHENE 127-18-4 8260B mg/kg 24 100 NE NE TOLUENE 108-88-3 8260B mg/kg 4900 47000 9 25 1,2,3-TRICHLOROBENZENE 87-61-6 8260B mg/kg 63 930 NE NE 1,2,4-TRICHLOROBENZENE 120-82-1 8260B mg/kg 24 110 NE NE 1,1,1-TRICHLOROETHANE 71-55-6 8260B mg/kg 8100 36000 NE NE 1,1,2-TRICHLOROETHANE 79-00-5 8260B mg/kg 1.1 5 NE NE TRICHLOROETHENE 79-01-6 8260B mg/kg 0.94 6 NE NE TRICHLOROFLUOROMETHANE 75-69-4 8260B mg/kg 23000 350000 NE NE 1,2,3-TRICHLOROPROPANE 96-18-4 8260B mg/kg 0.0051 0.11 NE NE 1,2,4-TRIMETHYLBENZENE 95-63-6 8260B mg/kg 300 1800 NE NE 1,2,3-TRIMETHYLBENZENE 526-73-8 8260B mg/kg 340 2000 NE NE 1,3,5-TRIMETHYLBENZENE 108-67-8 8260B mg/kg 270 1500 NE NE VINYL CHLORIDE 75-01-4 8260B mg/kg 0.059 1.7 NE NE XYLENES, TOTAL 1330-20-7 8260B mg/kg 580 2500 142 142 Qualifiers (Q): NE:Not Established.<:Less than Reported Detection Limit (RDL). mg/kg:Milligrams per kilogram. Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Color shaded value exceeds screening level. B: The same analyte is found in the associated blank.J: The identification of the analyte is acceptable; the reported value is an estimate.J3: The associated batch QC was outside the established quality control range for precision.J5: The sample matrix interfered with the ability to make any accurate determination; spike value is high.J6: The sample matrix interfered with the ability to make any accurate determination; spike value is low. P1: RPD value not applicable for sample concentrations less than 5 times the reporting limit. V3: The internal standard exhibited poor recovery due to sample matrix interference. The analytical results will be biased high. BDL results will be unaffected. EPA RSL: Environmental Protection Agency Regional Screening Levels for soil at residential (Res.) and industrial (Ind.) properties (May 2022; TR=1E-06; THQ=1.0). Utah's Initial Screening Levels (ISLs) and risk-based Tier 1 Screening Levels (Tier 1) for petroleum releases at leaking underground storage tank sites Bold value exceeds Method Detection Limit (MDL). Result Q MDL RDL Result Q MDL RDL 11/10/202211/10/2022 B-80 @ 3'B-80 @ SURFACE L1558026-53L1558026-52 0.00579 B J V3 0.00126 0.00629 0.00577B J V3 0.00128 0.006 0.0073 J V3 0.0012 0.0126 0.00389 J V3 0.00121 0.013 <0.00126 0.000441 0.00126 <0.00128 0.000447 0.001 <0.00629 0.00627 0.00629 <0.00638 0.00636 0.006 0.0012 J V3 0.000259 0.00126 0.00144 V3 0.000263 0.001 <0.00126 0.000281 0.00126 <0.00128 0.000285 0.001 <0.00126 0.000373 0.00126 <0.00128 0.000378 0.001 <0.00126 0.000291 0.00126 <0.00128 0.000295 0.001 <0.00126 0.000536 0.00126 <0.00128 0.000544 0.001 <0.00126 0.000409 0.00126 <0.00128 0.000415 0.001 0.0427 V3 0.00155 0.00629 0.0463 V3 0.00157 0.006 <0.00126 0.000385 0.00126 <0.00128 0.00039 0.001 <0.00126 0.000488 0.00126 <0.00128 0.000495 0.001 <0.00126 0.000466 0.00126 <0.00128 0.000472 0.001 <0.00126 0.000535 0.00126 <0.00128 0.000542 0.001 <0.00126 0.000252 0.00126 <0.00128 0.000255 0.001 <0.00629 0.000448 0.00629 <0.00638 0.000454 0.006 <0.00315 0.000307 0.00315 <0.00319 0.000311 0.003 0.00247 V3 0.000266 0.00126 0.00221 V3 0.000269 0.001 0.000936 J V3 0.000361 0.00126 0.000758 J V3 0.000366 0.001 0.00106 J V3 0.000335 0.00126 0.000957 J V3 0.000339 0.001 <0.00126 0.000284 0.00126 <0.00128 0.000288 0.001 0.0157 V3 0.000629 0.00378 0.0162 V3 0.000638 0.004 Page 18 of 18 Table 5 - VOCs and Explosive Gases in Soil Gas Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units VISL Residential VISL Commercial 10% of OSHA LEL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL METHANE 74-82-8 8015M ppmv NE NE 5000 14.6 6.98 10.0 502 6.98 10.0 <10.0 6.98 10.0 <10.0 6.98 10.0 ETHANE 74-84-0 8015M ppmv NE NE 3000 <10.0 3.86 10.0 <10.0 3.86 10.0 <10.0 3.86 10.0 <10.0 3.86 10.0 ETHENE 74-85-1 8015M ppmv NE NE 2700 <10.0 3.61 10.0 <10.0 3.61 10.0 <10.0 3.61 10.0 <10.0 3.61 10.0 ACETONE 67-64-1 TO-15 µg/m3 1070000 4510000 NA 76 1.39 2.97 74.6 1.39 2.97 202 1.39 2.97 40.4 1.39 2.97 ALLYL CHLORIDE 107-05-1 TO-15 µg/m3 15.6 68.1 NA <0.626 0.357 0.626 <0.626 0.357 0.626 <0.626 0.357 0.626 <0.626 0.357 0.626 BENZENE 71-43-2 TO-15 µg/m3 12 52.4 NA 16.5 0.228 0.639 21.2 0.228 0.639 10 0.228 0.639 14.9 0.228 0.639 BENZYL CHLORIDE 100-44-7 TO-15 µg/m3 1.91 8.34 NA <1.04 0.311 1.04 <1.04 0.311 1.04 <1.04 0.311 1.04 <1.04 0.311 1.04 BROMODICHLOROMETHANE 75-27-4 TO-15 µg/m3 2.53 11 NA <1.34 0.471 1.34 <1.34 0.471 1.34 <1.34 0.471 1.34 <1.34 0.471 1.34 BROMOFORM 75-25-2 TO-15 µg/m3 85.1 372 NA <6.21 0.757 6.21 <6.21 0.757 6.21 <6.21 0.757 6.21 <6.21 0.757 6.21 BROMOMETHANE 74-83-9 TO-15 µg/m3 174 730 NA <0.776 0.381 0.776 <0.776 0.381 0.776 <0.776 0.381 0.776 <0.776 0.381 0.776 1,3-BUTADIENE 106-99-0 TO-15 µg/m3 3.12 13.6 NA <4.43 0.23 4.43 <4.43 0.23 4.43 <4.43 0.23 4.43 <4.43 0.23 4.43 CARBON DISULFIDE 75-15-0 TO-15 µg/m3 24300 102000 NA 2.99 0.317 0.622 57 0.317 0.622 20.4 0.317 0.622 1.52 0.317 0.622 CARBON TETRACHLORIDE 56-23-5 TO-15 µg/m3 15.6 68.1 NA <1.26 0.461 1.26 <1.26 0.461 1.26 <1.26 0.461 1.26 <1.26 0.461 1.26 CHLOROBENZENE 108-90-7 TO-15 µg/m3 1740 7300 NA <0.924 0.385 0.924 <0.924 0.385 0.924 <0.924 0.385 0.924 <0.924 0.385 0.924 CHLOROETHANE 75-00-3 TO-15 µg/m3 348000 1460000 NA <0.528 0.263 0.528 <0.528 0.263 0.528 <0.528 0.263 0.528 <0.528 0.263 0.528 CHLOROFORM 67-66-3 TO-15 µg/m3 4.07 17.8 NA <0.973 0.349 0.973 <0.973 0.349 0.973 <0.973 0.349 0.973 <0.973 0.349 0.973 CHLOROMETHANE 74-87-3 TO-15 µg/m3 3130 13100 NA <0.413 0.213 0.413 <0.413 0.213 0.413 <0.413 0.213 0.413 <0.413 0.213 0.413 2-CHLOROTOLUENE 95-49-8 TO-15 µg/m3 NE NE NA <1.03 0.427 1.03 <1.03 0.427 1.03 <1.03 0.427 1.03 <1.03 0.427 1.03 CYCLOHEXANE 110-82-7 TO-15 µg/m3 209000 876000 NA 0.778 0.259 0.689 337 5.2 13.8 14.5 0.259 0.689 0.971 0.259 0.689 CHLORODIBROMOMETHANE 124-48-1 TO-15 µg/m3 NE NE NA <1.70 0.618 1.7 <1.70 0.618 1.7 <1.70 0.618 1.7 <1.70 0.618 1.7 1,2-DIBROMOETHANE 106-93-4 TO-15 µg/m3 0.156 0.681 NA <1.54 0.554 1.54 <1.54 0.554 1.54 <1.54 0.554 1.54 <1.54 0.554 1.54 1,2-DICHLOROBENZENE 95-50-1 TO-15 µg/m3 6950 29200 NA <1.20 0.77 1.2 <1.20 0.77 1.2 <1.20 0.77 1.2 <1.20 0.77 1.2 1,3-DICHLOROBENZENE 541-73-1 TO-15 µg/m3 NE NE NA <1.20 1.09 1.2 <1.20 1.09 1.2 <1.20 1.09 1.2 <1.20 1.09 1.2 1,4-DICHLOROBENZENE 106-46-7 TO-15 µg/m3 8.51 37.2 NA <1.20 0.335 1.2 <1.20 0.335 1.2 <1.20 0.335 1.2 <1.20 0.335 1.2 1,2-DICHLOROETHANE 107-06-2 TO-15 µg/m3 3.6 15.7 NA <0.810 0.283 0.81 <0.810 0.283 0.81 <0.810 0.283 0.81 <0.810 0.283 0.81 1,1-DICHLOROETHANE 75-34-3 TO-15 µg/m3 58.5 256 NA <0.802 0.29 0.802 <0.802 0.29 0.802 <0.802 0.29 0.802 <0.802 0.29 0.802 1,1-DICHLOROETHENE 75-35-4 TO-15 µg/m3 6950 29200 NA <0.793 0.302 0.793 <0.793 0.302 0.793 <0.793 0.302 0.793 <0.793 0.302 0.793 CIS-1,2-DICHLOROETHENE 156-59-2 TO-15 µg/m3 NE NE NA <0.793 0.311 0.793 <0.793 0.311 0.793 <0.793 0.311 0.793 <0.793 0.311 0.793 TRANS-1,2-DICHLOROETHENE 156-60-5 TO-15 µg/m3 NE NE NA <0.793 0.267 0.793 <0.793 0.267 0.793 <0.793 0.267 0.793 <0.793 0.267 0.793 1,2-DICHLOROPROPANE 78-87-5 TO-15 µg/m3 25.3 110 NA <0.924 0.351 0.924 <0.924 0.351 0.924 <0.924 0.351 0.924 <0.924 0.351 0.924 CIS-1,3-DICHLOROPROPENE 10061-01-5 TO-15 µg/m3 NE NE NA <0.908 0.313 0.908 <0.908 0.313 0.908 <0.908 0.313 0.908 <0.908 0.313 0.908 TRANS-1,3-DICHLOROPROPENE 10061-02-6 TO-15 µg/m3 NE NE NA <0.908 0.331 0.908 <0.908 0.331 0.908 <0.908 0.331 0.908 <0.908 0.331 0.908 1,4-DIOXANE 123-91-1 TO-15 µg/m3 18.7 81.8 NA <0.721 0.3 0.721 <0.721 0.3 0.721 <0.721 0.3 0.721 <0.721 0.3 0.721 ETHANOL 64-17-5 TO-15 µg/m3 NE NE NA 71.6 0.5 2.36 10.1 0.5 2.36 89.7 0.5 2.36 17.2 0.5 2.36 ETHYLBENZENE 100-41-4 TO-15 µg/m3 37.4 164 NA 16.9 0.362 0.867 10.5 0.362 0.867 1.18 0.362 0.867 14.7 0.362 0.867 4-ETHYLTOLUENE 622-96-8 TO-15 µg/m3 NE NE NA 7.71 0.384 0.982 7.71 0.384 0.982 <0.982 0.384 0.982 8.05 0.384 0.982 TRICHLOROFLUOROMETHANE 75-69-4 TO-15 µg/m3 NE NE NA 1.35 0.46 1.12 <1.12 0.46 1.12 2.42 0.46 1.12 15.1 0.46 1.12 11/11/2022 SG-9 Date Collected 11/11/2022 11/11/2022 11/11/2022 L1557924-08 Client Sample ID SG-3 SG-4 SG-6 Lab Sample ID L1557924-03 L1557924-04 L1557924-05 Page 1 of 2 Table 5 - VOCs and Explosive Gases in Soil Gas Former Anderson Auto Wrecking - 2890 South State Street, Spanish Fork, Utah Terracon Project No. 61237032 Analyte CAS Method Units VISL Residential VISL Commercial 10% of OSHA LEL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL Result Q MDL RDL 11/11/2022 SG-9 Date Collected 11/11/2022 11/11/2022 11/11/2022 L1557924-08 Client Sample ID SG-3 SG-4 SG-6 Lab Sample ID L1557924-03 L1557924-04 L1557924-05 DICHLORODIFLUOROMETHANE 75-71-8 TO-15 µg/m3 3480 14600 NA 1.86 0.678 0.989 1.13 0.678 0.989 1.23 0.678 0.989 3.57 0.678 0.989 1,1,2-TRICHLOROTRIFLUOROETHANE 76-13-1 TO-15 µg/m3 174000 730000 NA <1.53 0.608 1.53 <1.53 0.608 1.53 <1.53 0.608 1.53 <1.53 0.608 1.53 1,2-DICHLOROTETRAFLUOROETHANE 76-14-2 TO-15 µg/m3 NE NE NA <1.40 0.622 1.4 <1.40 0.622 1.4 <1.40 0.622 1.4 <1.40 0.622 1.4 HEPTANE 142-82-5 TO-15 µg/m3 13900 58400 NA 13.9 0.425 0.818 263 0.425 0.818 21 0.425 0.818 9.33 0.425 0.818 HEXACHLORO-1,3-BUTADIENE 87-68-3 TO-15 µg/m3 4.25 18.6 NA <6.73 1.12 6.73 <6.73 1.12 6.73 <6.73 1.12 6.73 <6.73 1.12 6.73 N-HEXANE 110-54-3 TO-15 µg/m3 24300 102000 NA 4.34 0.726 2.22 293 0.726 2.22 46.9 0.726 2.22 3.07 0.726 2.22 ISOPROPYLBENZENE 98-82-8 TO-15 µg/m3 13900 58400 NA <0.983 0.382 0.983 3.96 0.382 0.983 <0.983 0.382 0.983 <0.983 0.382 0.983 METHYLENE CHLORIDE 75-09-2 TO-15 µg/m3 3380 40900 NA 1.52 B 0.34 0.694 <0.694 0.34 0.694 5.66 0.34 0.694 0.948 B 0.34 0.694 METHYL BUTYL KETONE 591-78-6 TO-15 µg/m3 1040 4380 NA <5.11 0.544 5.11 <5.11 0.544 5.11 <5.11 0.544 5.11 <5.11 0.544 5.11 2-BUTANONE (MEK)78-93-3 TO-15 µg/m3 174000 730000 NA 10.3 0.24 3.69 18 0.24 3.69 35.4 0.24 3.69 8.4 0.24 3.69 4-METHYL-2-PENTANONE (MIBK)108-10-1 TO-15 µg/m3 104000 438000 NA <5.12 0.313 5.12 <5.12 0.313 5.12 <5.12 0.313 5.12 <5.12 0.313 5.12 METHYL METHACRYLATE 80-62-6 TO-15 µg/m3 24300 102000 NA <0.819 0.359 0.819 <0.819 0.359 0.819 <0.819 0.359 0.819 <0.819 0.359 0.819 METHYL TERT-BUTYL ETHER 1634-04-4 TO-15 µg/m3 360 1570 NA <0.721 0.233 0.721 <0.721 0.233 0.721 <0.721 0.233 0.721 <0.721 0.233 0.721 NAPHTHALENE 91-20-3 TO-15 µg/m3 2.75 12 NA <3.30 1.83 3.3 <3.30 1.83 3.3 <3.30 1.83 3.3 <3.30 1.83 3.3 2-PROPANOL 67-63-0 TO-15 µg/m3 6950 29200 NA 4.89 0.649 3.07 <3.07 0.649 3.07 <3.07 0.649 3.07 5.09 0.649 3.07 PROPENE 115-07-1 TO-15 µg/m3 104000 438000 NA 5.46 0.16 2.15 441 3.2 43 <2.15 0.16 2.15 <2.15 0.16 2.15 STYRENE 100-42-5 TO-15 µg/m3 34800 146000 NA <0.851 0.335 0.851 <0.851 0.335 0.851 <0.851 0.335 0.851 <0.851 0.335 0.851 1,1,2,2-TETRACHLOROETHANE 79-34-5 TO-15 µg/m3 1.61 7.05 NA <1.37 0.511 1.37 <1.37 0.511 1.37 <1.37 0.511 1.37 <1.37 0.511 1.37 TETRACHLOROETHENE 127-18-4 TO-15 µg/m3 360 1570 NA 297 0.553 1.36 1.7 0.553 1.36 13.5 0.553 1.36 327 0.553 1.36 TETRAHYDROFURAN 109-99-9 TO-15 µg/m3 69500 292000 NA <0.590 0.216 0.59 <0.590 0.216 0.59 <0.590 0.216 0.59 <0.590 0.216 0.59 TOLUENE 108-88-3 TO-15 µg/m3 174000 730000 NA 77.2 0.328 1.88 137 0.328 1.88 13.8 0.328 1.88 75.7 0.328 1.88 1,2,4-TRICHLOROBENZENE 120-82-1 TO-15 µg/m3 69.5 292 NA <4.66 1.1 4.66 <4.66 1.1 4.66 <4.66 1.1 4.66 <4.66 1.1 4.66 1,1,1-TRICHLOROETHANE 71-55-6 TO-15 µg/m3 174000 730000 NA <1.09 0.4 1.09 <1.09 0.4 1.09 <1.09 0.4 1.09 <1.09 0.4 1.09 1,1,2-TRICHLOROETHANE 79-00-5 TO-15 µg/m3 5.85 25.6 NA <1.09 0.422 1.09 <1.09 0.422 1.09 <1.09 0.422 1.09 <1.09 0.422 1.09 TRICHLOROETHENE 79-01-6 TO-15 µg/m3 15.9 99.7 NA <1.07 0.364 1.07 <1.07 0.364 1.07 <1.07 0.364 1.07 <1.07 0.364 1.07 1,2,4-TRIMETHYLBENZENE 95-63-6 TO-15 µg/m3 2090 8760 NA 10.3 0.375 0.982 6.77 0.375 0.982 <0.982 0.375 0.982 9.03 0.375 0.982 1,3,5-TRIMETHYLBENZENE 108-67-8 TO-15 µg/m3 2090 8760 NA 6.77 0.382 0.982 7.26 0.382 0.982 <0.982 0.382 0.982 5.5 0.382 0.982 2,2,4-TRIMETHYLPENTANE 540-84-1 TO-15 µg/m3 NE NE NA 7.75 0.621 0.934 <0.934 0.621 0.934 3.92 0.621 0.934 4.91 0.621 0.934 VINYL CHLORIDE 75-01-4 TO-15 µg/m3 5.59 92.9 NA <0.511 0.243 0.511 <0.511 0.243 0.511 <0.511 0.243 0.511 <0.511 0.243 0.511 VINYL BROMIDE 593-60-2 TO-15 µg/m3 2.92 12.8 NA <0.875 0.373 0.875 <0.875 0.373 0.875 <0.875 0.373 0.875 <0.875 0.373 0.875 VINYL ACETATE 108-05-4 TO-15 µg/m3 6950 29200 NA <0.704 0.408 0.704 <0.704 0.408 0.704 <0.704 0.408 0.704 <0.704 0.408 0.704 XYLENES, TOTAL 1330-20-7 TO-15 µg/m3 3480 14600 NA 88.1 0.586 2.61 71.2 0.586 2.61 5.25 0.586 2.61 78.2 0.586 2.61 M&P-XYLENE 1330-20-7 TO-15 µg/m3 3480 14600 NA 69.4 0.585 1.73 46 0.585 1.73 4.01 0.585 1.73 62 0.585 1.73 O-XYLENE 95-47-6 TO-15 µg/m3 3480 14600 NA 18.6 0.359 0.867 25.3 0.359 0.867 1.24 0.359 0.867 16 0.359 0.867 B: The same analyte is found in the associated blank. OSHA LEL: Occupational Safety and Health Administration Lower Explosive Limit (LEL). Listed screening levels are 10% of actual LEL. NA: Not Applicable.NE:Not Established.<:Less than Reported Detection Limit (RDL).µg/m3:micrograms per cubinc meter.ppmv: parts per million volume Blue italicized non-detect results (e.g.,<0.0100 ) exceed one or more of the screening levels. Qualifiers (Q): EPA VISL: Environmental Protection Agency Target Sub-Slab and Near-source Soil Gas Concentration Bold value exceeds Method Detection Limit (MDL). Color shaded value exceeds screening level. Page 2 of 2 Appendix C Public Notice PUBLIC NOTICE PUBLIC COMMENT PERIOD June 30, 2025 to July 19, 2025 Excavation and Remediation Project Lonestar Properties LLC, Voluntary Cleanup Program Site #C127 2890 South State Street, Spanish Fork, Utah Sporadic releases of heavy metals (lead) and petroleum hydrocarbons were reported in soils and benzene in soil gas at the property located at 2890 South State Street, Spanish Fork, Utah (Exhibit 1). The new and current property owner intends to redevelop the site. The owner would like to remove and properly dispose of the impacted soils to allow for unrestricted development of the property. A Utah Department of Environmental Quality (UDEQ), Division of Environmental Response and Remediation (DERR) approved Remedial Action Plan was developed to address the removal of impacted soils and elevated concentrations of benzene in soil gas. Site Description The site was formerly occupied by the Anderson Auto Wrecking facility, which historically operated as an automotive salvage yard from approximately 1977 to the mid-2010s. The Anderson Auto Wrecking facility formerly stored large numbers of old vehicles, trailers, tires, engines, scrap-metal, and other vehicle parts. Based on recent assessment work conducted at the site, metals and petroleum hydrocarbon impacts above regulatory screening levels were detected in soil related to the historical auto wrecking operations. The site was enrolled into the Voluntary Cleanup Program (VCP) under the DERR (Site ID #C127). Excavation and disposal of impacted soil is proposed for the site. Cleanup Measures The proposed cleanup approach is to excavate and remove the metals and petroleum-impacted soils above the Residential Screening Levels or DERR Initial Screening Levels from multiple areas of the site. The soil will be excavated, stockpiled, and transported to a proper disposal facility. Confirmation sampling will be conducted to ensure the impacts have been removed. Elevated concentrations of benzene in soil gas will be addressed through the incorporation of a vapor mitigation system beneath residential structures. Schedule On-site cleanup activities are anticipated to begin in July 2025. Once started, soil excavation is expected to take approximately 2-4 weeks to complete. The vapor barrier will be installed under each residential structure during construction. For More Information A copy of the Remedial Action Plan prepared for this site is available at the DERR in Salt Lake City (address below; office hours 8:00 a.m. to 5:00 p.m., Monday through Friday). For additional information or to provide comment(s), please contact: Lincoln Grevengoed, Project Manager 801.536.4100 Division of Environmental Response and Remediation 195 North 1950 West, Salt Lake City, Utah 84116 Appendix D DEQ DERR Letter, February 28, 2025 February 28, 2025 Nikki Humphries Lonestar Properties, LLC. 2208 West 700 South Springville, Utah 84663 RE: Review Comments - Former Anderson Auto Wrecking VCP Site, 2890 S. State Street, Spanish Fork, Utah Ms. Humphries: The Division of Environmental Response and Remediation (DERR) has reviewed the following document as required by the provisions of the Voluntary Cleanup Program (VCP): • Site Characterization Report, dated December 31, 2024. Based on a review of the document, the DERR accepts the report under the VCP. However, the DERR has enclosed several comments in order to clarify various project matters, such as some recent work that was conducted without the DERR’s knowledge or involvement. These comments, where applicable, should be addressed as part of the Remedial Action Plan. Thank you for your participation in the VCP. If you have any questions, please contact me at (801) 536- 4100. Sincerely, Lincoln Grevengoed, Project Manager Division of Environmental Response and Remediation LG/ Enclosure: Technical Comments cc: Utah County Health Department DERR Review Comments – Former Anderson Auto Wrecking VCP: Site Characterization Report General Comments: 1. The risk assessment used both the duplicate and the original sample in several cases. For future reference, please note that only one of these two samples should be used to avoid biasing the data towards one location over another. In this instance, the DERR does not believe this methodology substantially impacts the conclusions of the assessment, but does want to make the Applicant aware of this matter for future work. 2. The risk assessment focused on the surface soils across the Site. Please note, that subsurface soils that exceed screening levels should also be addressed in the upcoming Remedial Action Plan (RAP). 3. Based on the DERR’s February 6, 2025 site visit and discussions with the Applicant’s onsite representative, the abandoned house has been demolished, the debris piles noted in the Materials Management Plan (MMP) were removed off site, and the soil piles were spread across the site before apparently being covered with road base. Under the Voluntary Cleanup Program (VCP), the DERR should have been notified before these activities took place so the DERR could be involved as needed and to avoid any uncertainty about the nature of the work that could impact the project under the VCP. 4. Please submit a separate letter outside the RAP discussing the activities and procedures implemented in General Comment #3. For example, please specify whether an environmental professional inspected/sampled the soil underneath the house’s foundation, as stipulated in the VCP Building Demolition Fact Sheet. This fact sheet was previously provided in past review comments sent to the Applicant. While a residence is generally not a major source of contamination, aerial photos show what appears to be potentially dark staining in this area possibly before the house was constructed. 5. Previous DERR comments and the MMP outlined various objectives for the disposal of debris left at the Site. Please state whether these were followed and provide any available documentation regarding the disposal of the debris piles, used oil, and unmarked containers, etc. 6. Based on the Site Characterization Report, the soil pile sampled in Summer 2024 was above the screening level for TRPH. Conversations with onsite personnel indicated that this and other piles have been spread over the surface and covered with road base. This creates uncertainty since contamination could have been spread over an area that was previously characterized. This uncertainty will need to be addressed in the RAP. Please propose a strategy to address this comment. 7. Please indicate if any of the previous activities in General Comment #3 disturbed areas with known contamination, such as the former car crushing location. This information is necessary to help better understand the impacts of the work that was conducted without the DERR’s involvement. A discussion of the work can be included with the letter requested in General Comment #4. 8. Recent changes to the EPA Regional Screening Level for hexavalent chromium have resulted in only one sample point being above the residential screening level. As this area will be addressed in the RAP, the DERR does not believe any further characterization is warranted and will anticipate that confirmation samples will be proposed in the RAP to ensure the nature and extent of the impacts have been addressed. 9. With respect to future remedial action, please see the following link to assist with the preparation of the future document: Remedial Action Plan Fact Sheet. Specific Comment: 1. Responses to Comments, General Comment #2: The text notes that PFAS sampling was not conducted due to a lack of landfill debris within the VCP Site and the Site is upgradient of the historic landfill. The DERR believes that PFAS sampling is warranted due to uncertainty over the exact boundaries of the unregulated landfill and the possibly that past activities represent an additional source. Please propose PFAS sampling from the western edge of the Site as part of the RAP activities.