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HomeMy WebLinkAboutDERR-2024-006607Facilities | Environmental | Geotechnical | Materials i Cover Page Site Characterization Work Plan Lonestar Properties LLC – Former Anderson Auto Wrecking Site, 2890 South State Street, Spanish Fork, Utah County, Utah Voluntary Cleanup Program Site #C127 Revised March 28, 2024 | Terracon Project No. 61237032 Prepared for: Utah Department of Environmental Quality/ Division Of Environmental Response and Remediation Voluntary Cleanup Program (VCP) Facilities | Environmental | Geotechnical | Materials ii Site Characterization Work Plan Approval Sheet (A1) Utah Department of Environmental Quality/Division of Environmental Response and Remediation Voluntary Cleanup Program (VCP) Lonestar Properties LLC – Former Anderson Auto Wrecking Site 2890 South State Street Spanish Fork, Utah County, Utah Revised March 28, 2024 Approved By Terracon Project Manager Date: Signature Daniel Dean Printed Name Terracon Authorized Project Reviewer Date: Signature Amy Austin Printed Name Terracon Project QA/QC Officer Date: Signature Andrew Turner Printed Name 03/28/2024 'P\'XVWLQ 03/28/2024 03/28/2024 Facilities | Environmental | Geotechnical | Materials iii Table Of Contents Site Characterization Work Plan Approval Sheet (A1) ......................................... ii Distribution List (A3) ................................................................................. v List of Acronyms and Abbreviations ............................................................. vi 1.0 Project Management (A) ..................................................................... 1 1.1 Project Task/Organization (A4)........................................................................... 1 1.2 Problem Definition/Background (A5) .................................................................... 1 1.3 Project/Task Description (A6) ............................................................................ 3 1.4 Quality Objectives and Criteria (A7) ..................................................................... 4 1.5 Specialized Training (A8).................................................................................. 7 1.6 Documentation and Records (A9) ....................................................................... 7 2.0 Data Generation/Acquisition (B)............................................................. 7 2.1 Sampling Process Design (B1) ........................................................................... 7 2.2 Sampling Methods (B2).................................................................................... 8 2.3 Sample Handling and Custody (B3) ..................................................................... 8 2.4 Analytical Methods (B4) ................................................................................... 8 2.5 Quality Control (B5) ........................................................................................ 8 2.6 Instrument/Equipment Testing, Inspection, and Maintenance (B6) ................................ 8 2.7 Instrument/Equipment Calibration and Frequency (B7) .............................................. 8 2.8 Inspection/Acceptance for Supplies and Consumables (B8) ........................................ 9 2.9 Use of Existing Data (Non-direct Measurements) (B9) ............................................... 9 2.10 Data Management (B10) .................................................................................. 9 3.0 Assessment And Oversight (C) ............................................................. 9 3.1 Assessments and Response Actions (C1) ............................................................. 9 3.2 Reports to Management (C2)............................................................................. 9 4.0 Data Validation And Usability (D) ........................................................... 9 4.1 Data Review, Verification, and Validation (D1) ........................................................ 9 4.2 Verification and Usability Methods (D2)................................................................. 9 5.0 References ................................................................................... 10 Facilities | Environmental | Geotechnical | Materials iv Appendices Appendix A: Exhibits Exhibit 1 Topographic Site Overview Exhibit 2 Proposed Surface Soil Sample Locations Appendix B: Tables Table 1A Screening Levels For Contaminants Of Concern—VOCs and Petroleum Hydrocarbons in Soil Table 1B Screening Levels For Contaminants Of Concern—Metals in Soil Table 1C Screening Levels for Contaminants of Concern—PCBs in Soil Table 2 Analytical Method Summary Table 3 Summary Of Sampling Locations Facilities | Environmental | Geotechnical | Materials v Distribution List (A3) Daniel Dean, PG Consultant Project Manager Terracon Consultants, Inc. 6952 South High Tech Drive, Suite B Midvale, UT 84047 (385) 377-5971 Daniel.Dean@terracon.com Andrew Turner, P.G. Consultant QA/QC Officer Terracon Consultants, Inc. 6952 South High Tech Drive, Suite B Midvale, UT 84047 (385) 388-7028 Andrew.Turner@terracon.com Lincoln Grevengoed Utah Department of Environmental Quality Division of Environmental Response and Remediation Project Manager 195 North 1950 West Salt Lake City, UT 84116 (801) 536-4100 lgrevengoed@utah.gov Joseph Earnest – VP of Real Estate Development Lone Star Builders, LLC 2208 West 700 South Springville, UT 84663 (801) 400-1944 joseph@lonestarbuilders.com Nikki Humphries – Real Estate Entitlements Lone Star Builders LLC 2208 West 700 South Springville, UT 84663 (801) 376-9149 nikki@lonestarbuilders.com Facilities | Environmental | Geotechnical | Materials vi List of Acronyms and Abbreviations APN Assessor Parcel Number bgs Below Ground Surface BTV background threshold value DERR Division of Environmental Response and Remediation DQI Data Quality Indicators DQO Data Quality Objectives EPC Exposure Point Concentration ESA Environmental Site Assessment GIS Geographic Information System MDL Method Detection Limit mg/kg milligrams per kilogram (or parts per million) NELAP National Environmental Laboratory Accreditation Program PCB polychlorinated biphenyl QA Quality Assurance QAPP Quality Assurance Project Plan QC Quality Control REC Recognized Environmental Condition RL Laboratory Reporting Limit a.k.a. practicable quantification limit RSL Regional Screening Level SCWP Site Characterization Workplan SOP Standard Operating Procedure UCL95 95% upper confidence limit UDEQ Utah Department of Environmental Quality US EPA United States Environmental Protection Agency UST Underground Storage Tank UTL 95% upper tolerance limit VOC Volatile Organic Compounds Site Characterization Work Plan Former Anderson Auto Wrecking Site | Spanish Fork, Utah Revised March 28, 2024 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 1 1.0 Project Management (A) 1.1 Project Task/Organization (A4) The Utah Division of Environmental Quality (UDEQ)/Division of Environmental Response and Remediation (DERR) Voluntary Cleanup Program (VCP) is the lead regulatory agency responsible for oversight of this Site Characterization Work Plan (SCWP) which will be implemented by Lonestar Properties LLC. Terracon will perform and coordinate site assessment activities that will be conducted at the site located at 2890 South State Street, Spanish Fork, Utah herein the “site”. Identification of key personnel involved in the UDEQ/DERR VCP project is provided in Section A4 of the Quality Assurance Project Plan (QAPP; Terracon 2023a). Pertinent areas of this SWCP as they relate to greater detail or reference in the approved QAPP, are indicated by QAPP designations in parentheses in section headers. 1.2 Problem Definition/Background (A5) Lonestar Properties LLC (Lonestar) is in the process of redeveloping the property located at 2890 South State Street, Spanish Fork, Utah. The site has been enrolled in the VCP and is referenced as “VCP Site #127”. Heavy metals and petroleum hydrocarbons have been documented at the site above applicable regulatory screening levels (IHI 2007a; IHI 2007b; DERR, 2021; Terracon 2023). Limited additional surface soil sampling is required to further define these impacts. This SCWP pertains to and sets forth the site assessment activities and field sampling locations designed to further evaluate the real or potential presence of a hazardous substance, pollutant, or contaminant at the site.Exhibit 1 (Appendix A) depicts a topographic overview of the site.Exhibit 2 (Appendix A) details the site layout and the proposed sampling locations. The SCWP provides a discussion of specific site objectives, site description, and details regarding site-specific field sampling. It is designed to be used in conjunction with the above-referenced QAPP. The QAPP describes data collection procedures, analytical testing, quality assurance/quality control (QA/QC) activities, and data evaluation processes to ensure that appropriate levels of data quality are obtained for field sampling, testing, and analytical activities. Project Background The site is comprised of approximately 3.9 acres of land currently owned by Lonestar Properties LLC. The site comprises two parcels consisting of the addresses, Utah County Assessor Parcel Numbers (APNs), and land uses listed below: Site Characterization Work Plan Former Anderson Auto Wrecking Site | Spanish Fork, Utah Revised March 28, 2024 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 2 Address Parcel Number Acres Use 2890 South State Street 27:010:0140 1.875 Vacant 1215 North SR 51 27:010:0139 2.024 Residence/Vacant 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. The site currently consists primarily of vacant land. Proposed development of the site includes residential apartments. Summary of Impacts Impacts in the property area have been characterized. The UDEQ/DERR VCP indicated there were some isolated areas with historical operations where the recent assessments indicated possible shallow soil contamination that has not been fully defined. These areas are as follows: Area bordered by recent soil borings B-3, B-4, B-7, B-12, and B-13 where scrap metal and vehicle storage and salvaging was present. This area may have shallow metals, petroleum hydrocarbon, and VOC impacts to the soil. Former crusher area near B-12. This area may have polychlorinated biphenyl (PCB) impacts to the soil. A soil stockpile of unknown composition present to the northwest of the former residence. This area may have shallow metals, petroleum hydrocarbon, and VOC impacts to the soil. Additional sampling of the soil in these areas is requested by the VCP to evaluate environmental risks to future users of the site. Regulatory Standards and Criteria The laboratory analytical results will be compared to regulatory guidance and standards compliant with Section A7.2 of the QAPP. Soil sample results will be compared to the following current regulatory guidance and standards: EPA Regional Screening Levels (RSL) guidance for Residential and Industrial use scenarios. Site Characterization Work Plan Former Anderson Auto Wrecking Site | Spanish Fork, Utah Revised March 28, 2024 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 3 UDEQ/DERR Initial Screening Levels (ISLs) for petroleum hydrocarbons in soil Tables 1A through 1C (Appendix B)itemize the screening levels to be used for comparisons for each media to support project decisions regarding cleanup planning for redevelopment. 1.3 Project/Task Description (A6) The proposed scope of work described in this SCWP is intended to gather the necessary data to evaluate the environmental impacts and risks to site users from contaminants in surface soil at the site. Planned redevelopment at the site includes residential use. Soil Sampling To assess soil impacts at the site resulting from metals, VOCs, petroleum hydrocarbons, and PCBs, it is proposed to collect shallow soil samples from 11 locations at the site.Exhibit 2 (Appendix A) shows the proposed locations of the soil samples. The soil samples will be collected from to surface to approximately six inches in depth in the areas shown on Exhibit 2. Project Schedule The tentative project schedule is provided in the table below. Actual dates may vary depending on subcontractor availability. Activity Planned Start Planned Completion Soil sampling Within 2 weeks following SCWP approval Within 5 days following start of sampling Laboratory analyses Within 1–2 days following sampling completion Within 10 days following start of laboratory analyses Report preparation Within 1 week following receipt of analytical results Within 4 weeks following receipt of analytical results UDEQ review of report Within 2 weeks of receipt of draft report Within 2 weeks of receipt of draft report Issue final report Within 1 week of receipt of UDEQ comments on draft report *No field work will be conducted until formal approval of the SCWP is received from the agency and documented. Field Work and Sample Collection Field sampling will include the collection of thirteen shallow soil samples in three areas of the site in order to further characterize areas with potential contamination indicated in previous investigations. Soil samples will be collected using single-use disposable sampling equipment and/or decontaminated hand-tools. Site Characterization Work Plan Former Anderson Auto Wrecking Site | Spanish Fork, Utah Revised March 28, 2024 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 4 Field duplicates will be collected at a rate of 10 percent. A trip blank (laboratory-supplied blank) will also be collected during this investigation. Field notes will be recorded during the field work. Soil samples will be field screened with a photoionization detection (PID) to detect potential volatile organic vapors.Exhibit 2 (Appendix A) depicts the approximate proposed soil sampling locations. Work will be conducted commensurate with the requirements set forth in the approved QAPP. Prior to mobilizing to the site to begin assessment activities, the property access agreement will be executed with the property owner. If deeper soil borings are required, the public utility location service (Blue Stakes of Utah) will be notified at least 48 hours prior to commencing any drilling activities, and a private utility location service will be used to locate potential utilities and/or other subsurface obstacles in the immediate vicinity of each proposed drilling location. The following is a list of the contaminants of concern being analyzed at each sample location: Soil Samples: Resource Conservation and Recovery Act (RCRA) 8 Metals and Hexavalent Chromium: Twelve shallow samples for RCRA 8 metals and hexavalent chromium (SS-1 through SS-9, SS-11 through SS-13) will be collected in the areas shown on Exhibit 2. VOCs:Twelve shallow samples for VOCs (SS-1 through SS-9, SS-11 through SS-13) will be collected in the areas shown on Exhibit 2. Petroleum Hydrocarbons:Twelve shallow samples for petroleum hydrocarbons (TPH- GRO, TPH-DRO, and TRPH; SS-1 through SS-9, SS-11 through SS-13) will be collected in the areas shown on Exhibit 2. PCBs: One shallow soil sample for PCBs will be collected in the former crusher area (SS- 10) as shown on Exhibit 2. 1.4 Quality Objectives and Criteria (A7) As discussed in the QAPP, Data Quality Objectives (DQOs) have been developed for sampling and analysis activities. DQOs identify the level of quality that the data must meet to provide a sound basis for decision-making activities during the project. DQOs—Soil Sampling State the Problem: A few isolated areas in the site have possible shallow soil contamination that was not fully characterized in previous investigations. Additional sampling of soil is required to evaluate environmental risks to future users of the site. Site Characterization Work Plan Former Anderson Auto Wrecking Site | Spanish Fork, Utah Revised March 28, 2024 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 5 Identify the decisions: Soil samples will be collected for laboratory analysis of RCRA 8 metals, hexavalent chromium, VOC, petroleum hydrocarbons, or PCBs. Analytical data will be compared to relevant screening levels to determine what actions may be needed to support cleanup planning for redevelopment. Identify inputs to the decision: Analytical results will be obtained from analysis of soil samples for applicable chemicals of concern as detailed in Section 2.0 Data Generation/ Acquisition (B) of this SCWP. Define boundary of project: The boundary of the study area is identified as approximately 3.9 acres of land in Spanish Fork, Utah. The site consists of two parcels (Section 1.2.1). The property location is currently accessible to pedestrian foot traffic and sampling equipment as necessary and shown on Exhibit 2 (Appendix A). Develop the decision rule: Data generated during this investigation will be compared to applicable screening levels including RSL guidance (Section 1.2.3). This evaluation will allow the development of remedial strategies, management plans, possible environmental restrictions, and protective covenants providing necessary decision tools to aide in the property’s redevelopment. Specify limits on decision errors: Sampling locations are biased towards locations where impacts are known or suspected. For this reason, the data are intended to represent a worst-case scenario for the site. Non-uniform impacts may introduce some level of uncertainty regarding the localized lateral extent of subsurface contamination if present. To reduce this uncertainty, the sampling design includes the collection of a sufficient number of samples to further define the overall extent of contamination in the areas identified during the previous investigations. Decision errors will also be controlled by laboratory MDLs that are lower than the corresponding screening levels for various media as detailed in Tables 1A through 1C (Appendix B) of this SCWP. For a small percentage of analytes, cases may arise where a screening level is below the lowest practically attainable MDL and a “non-detect” value is reported. In such cases, the relative degree of uncertainty will be stated with consideration of the presence or absence of other associated analytes within the same sample. For analytes where the laboratory MDL is close to the applicable screening level (e.g., EPA Residential RSL for hexavalent chromium), the laboratory will be instructed to provide the lowest achievable MDL. If requested by the laboratory, additional sample volume will be provided so that the laboratory can conduct the required analysis without the use of dilution factors. Site Characterization Work Plan Former Anderson Auto Wrecking Site | Spanish Fork, Utah Revised March 28, 2024 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 6 Optimize the design for obtaining data: The proposed sampling locations and analytical program have been selected to identify potential environmental impacts on the property originating from historical operations at the site. This information is necessary to support development of remedial action and cleanup plans. Performance/Measurement Criteria Performance and measurement criteria are detailed in Section A7 of the QAPP. Data quality indicators (DQIs) will be used to evaluate the performance and measurement criteria in terms of precision (analytical and/or total measurement error determination), accuracy, completeness, representativeness, and comparability. Concentrations of the parameters of interest are anticipated to range from levels below the method detection limits to concentrations that exceed the action levels. Comparative Screening Levels Analytical results will be evaluated for residential and commercial/industrial land use.Tables 1A through 1C (Appendix B) itemize the screening levels to be used for comparisons for each media to support project decisions regarding cleanup planning for redevelopment. For comparison of detected analytes that have multiple screening levels, the order of precedence of comparative screening levels will vary by media, contaminant type, and applicability. The detection limits for all media will be in accordance with the established analytical methods. The analytical methods for each contaminant type are summarized in Table 2 (Appendix B). Pace Analytical will perform the soil analyses. Risk Evaluation Exposure Point Concentrations (EPCs) for determining site risk levels will utilize 95% upper confidence limits (UCL95s) for surface soil calculated using EPA’s ProUCL software. ProUCL will be used to run outlier tests and outliers that exceeded a 5% significance level will be excluded from the UCL95 calculation dataset. For analytes where the laboratory is unable to consistently provide MDLs that are below the applicable screening level (e.g., EPA Residential RSL for hexavalent chromium), Kaplan-Meier non-parametric methods will be employed to utilize non-detect results in the UCL95 calculations. A target organ analysis will be conducted for exposure scenarios where the cumulative non-carcinogenic Hazard Index exceeds 1. All final carcinogenic and non-carcinogenic risk results will be reported as one significant figure per EPA guidelines. ProUCL will be used to develop a site-specific background threshold value (BTV) for arsenic. Arsenic data from unimpacted subsurface native soils collected under the Brownfields Phase II ESA (Terracon 2023b) will be used to calculate the site-specific BTV. The site-specific BTV will be based on a 95% upper tolerance limit (UTL). ProUCL will be used to run an outlier test and outliers that exceeded a 5% significance level will be excluded from the BTV calculation dataset. Site Characterization Work Plan Former Anderson Auto Wrecking Site | Spanish Fork, Utah Revised March 28, 2024 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 7 1.5 Specialized Training (A8) Details of training and certification requirements are provided in Section A8 of the QAPP. 1.6 Documentation and Records (A9) Details of documentation and recording procedures are provided in Section A9 of the QAPP. 2.0 Data Generation/Acquisition (B) 2.1 Sampling Process Design (B1) The sampling strategy for soil has been designed to further define the nature and extent of shallow soil impacts in specific areas of the site The exact location of each sample will be dictated by access, constraints, and safety. It has been assumed that sample locations will be accessible. In instances where locations are hindered by subsurface utilities or other obstacles not anticipated, relocation and Geographic Information System (GIS) documentation will be generated, the reason for re- location will be documented, and new GIS coordinates generated for the relocated boring. Soil samples will be analyzed for select regulated contaminants as shown on Table 3 (Appendix B). One shallow soil grab sample will be collected from twelve locations for analysis of RCRA 8 metals, hexavalent chromium, VOCs, and petroleum hydrocarbons. Additionally, one shallow soil sample will be collected in the former crusher area for PCB analysis. The exact location of each sample will be dictated by access constraints and safety. Such access constraints may include existing subsurface utilities, limited working space, former building foundations, and other obstacles associated with the site. Wherever possible, off-set locations will be biased such that they are placed in the presumed most impacted area of any feature of concern that is inaccessible. The proposed sampling locations are depicted on Exhibit 2 (Appendix A). Prior to mobilization, Terracon will generate GIS coordinates for locating soil sample locations in the field. A description of the proposed sample locations, sample types, sample naming convention, and laboratory analyses is presented in Table 3 (Appendix B). Field duplicates will be collected at rate of 10 percent. Site-specific conditions may require an adjustment to the field program and a deviation from this SCWP to accommodate site-specific needs. If an adjustment or deviation becomes necessary, the activities and reasoning will be documented and implemented. The UDEQ/DERR Project Manager will be notified if the adjustment is determined to be a Site Characterization Work Plan Former Anderson Auto Wrecking Site | Spanish Fork, Utah Revised March 28, 2024 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 8 significant one. Such adjustments (for example, major adjustments in sampling locations) may introduce some degree of variability, which will be reconciled with project information by evaluating whether contaminant levels may be underestimated or overestimated, and how this may affect eventual site management or cleanup approaches, if applicable. After sample collection is completed, each location will be properly abandoned by restoring the surface with native soil to match the surrounding area. Samples will be delivered to the analytical laboratory within holding times for all analytical methods to generate definitive analytical data, which are critical to this assessment. 2.2 Sampling Methods (B2) Soil Sampling Soil samples will be collected using single-use disposable sampling equipment and/or decontaminated hand-tools following the procedures detailed in Standard Operating Procedures (SOPs), which are provided in Appendix B of the UDEQ/DERR-approved QAPP. 2.3 Sample Handling and Custody (B3) Details of sample handling and custody requirements are provided in Section B3 of the QAPP. 2.4 Analytical Methods (B4) Details for analytical method requirements are provided in Section B4 of the QAPP. 2.5 Quality Control (B5) Details for quality control requirements are provided in Section B5 of the QAPP. 2.6 Instrument/Equipment Testing, Inspection, and Maintenance (B6) Requirements for instrument and equipment testing, inspection, and maintenance are provided in Section B6 of the QAPP. 2.7 Instrument/Equipment Calibration and Frequency (B7) Requirements for instrument and equipment calibration and frequency are provided in Section B7 of the QAPP. Site Characterization Work Plan Former Anderson Auto Wrecking Site | Spanish Fork, Utah Revised March 28, 2024 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 9 2.8 Inspection/Acceptance for Supplies and Consumables (B8) Details for inspection and acceptance for supplies and consumables are provided in Section B8 of the QAPP. 2.9 Use of Existing Data (Non-direct Measurements) (B9) Details for use of existing data are provided in Section B9 of the QAPP. Data collected within the VCP site boundary (Section 1.2.1 and Exhibit 2) under the 2023 Brownfields Phase II ESA (sample locations 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-5, SG-6, SG-9, SG-10; Terracon 2023b) will be considered definitive data. 2.10 Data Management (B10) Details for data management are provided in Section B10 of the QAPP. 3.0 Assessment And Oversight (C) 3.1 Assessments and Response Actions (C1) Details for assessment and response actions are provided in Section C1 of the QAPP. 3.2 Reports to Management (C2) Reporting requirements are provided in Section C2 of the QAPP. 4.0 Data Validation And Usability (D) 4.1 Data Review, Verification, and Validation (D1) The Terracon Project Manager will be responsible for data management on this project. Details for data review, verification, and validation requirements are provided in Sections D1, D2, and D3 in the QAPP. 4.2 Verification and Usability Methods (D2) Data collected during this project will be collected in accordance with this SCWP and the QAPP. Details for data verification, validation, and usability methods are provided in Sections D2 and D3 in the QAPP. Site Characterization Work Plan Former Anderson Auto Wrecking Site | Spanish Fork, Utah Revised March 28, 2024 | Terracon Project No. 61237032 Facilities | Environmental | Geotechnical | Materials 10 5.0 References IHI Environmental (IHI) 2007a. PHASE II SUBSURFACE INVESTIGATION REPORT, Anderson Auto Wrecking, 2890 South State Street, Springville, Utah. July 31, 2007. IHI Environmental (IHI) 2007b. PHASE II SUPPLEMENTAL SUBSURFACE INVESTIGATION REPORT, Anderson Auto Wrecking, 2890 South State Street, Springville, Utah.October 24, 2007. Utah Department of Environmental Quality, Division of Environmental Response and Remediation (DERR) 2021.SITE INSPECTION ANALYTICAL RESULTS REPORT, Anderson Auto Wrecking Company, Utah County, Utah, UTN000802773. November 2021. Terracon 2023a. Quality Assurance Project Plan, Lonestar Properties LLC – Former Anderson Auto Wrecking Site, 2890 South State Street, Spanish Fork, Utah County, Utah.January 30, 2024. Terracon 2023b. Phase II Environmental Site Assessment, Former Anderson Auto Wrecking, 2890 South State Street and 1215 North SR 51, Spanish Fork City, Utah County, Utah. January 6, 2023. Appendix A: Exhibits Appendix B: Tables Utah DEQ- DERR ISL (mg/kg)(mg/kg)(mg/kg)(mg/kg) 67-64-1 Acetone 61,000 670,000 --0.01 107-13-1 Acrylonitrile 0.25 1.1 --0.00179 71-43-2 Benzene 1.2 5.1 0.2 0.00027 108-86-1 Bromobenzene 290 1800 --0.000284 75-27-4 Bromodichloromethane 0.29 1.3 --0.000254 75-25-2 Bromoform 19 86 --0.000424 74-83-9 Bromomethane 6.8 30 --0.00134 104-51-8 n-Butylbenzene 3,900 58,000 --0.000258 135-98-8 sec-Butylbenzene 7,800 120,000 --0.000201 98-06-6 tert-Butylbenzene 7,800 120,000 --0.000206 56-23-5 Carbon tetrachloride 0.65 2.9 --0.000328 108-90-7 Chlorobenzene 280 1,300 --0.000212 124-48-1 Chlorodibromomethane 8.3 39 --0.000373 75-00-3 Chloroethane 14,000 57,000 --0.000946 67-66-3 Chloroform 0.32 1.4 --0.000229 74-87-3 Chloromethane 110 460 --0.000375 95-49-8 2-Chlorotoluene 1,600 23,000 --0.000301 106-43-4 4-Chlorotoluene 1,600 23,000 --0.00024 96-12-8 1,2-Dibromo-3-Chloropropane 0.0053 0.064 --0.00105 106-93-4 1,2-Dibromoethane 0.036 0.16 --0.000343 74-95-3 Dibromomethane 24 99 --0.000382 95-50-1 1,2-Dichlorobenzene 1,800 9,300 --0.000305 106-46-7 1,4-Dichlorobenzene 2.6 11 --0.000226 75-71-8 Dichlorodifluoromethane 87 370 --0.000713 75-34-3 1,1-Dichloroethane 3.6 16 --0.000199 107-06-2 1,2-Dichloroethane 0.46 2 --0.000265 75-35-4 1,1-Dichloroethene 230 1,000 --0.000303 156-59-2 cis-1,2-Dichloroethene 160 2,300 --0.000235 156-60-5 trans-1,2-Dichloroethene 70 300 --0.000264 78-87-5 1,2-Dichloropropane 2.5 11 --0.000358 142-28-9 1,3-Dichloropropane 1,600 23,000 --0.000279 108-20-3 Di-isopropyl ether 2,200 9,400 --0.000248 100-41-4 Ethylbenzene 5.8 25 5 0.000297 87-68-3 Hexachloro-1,3-butadiene 1.2 5.3 --0.000342 98-82-8 Isopropylbenzene (Cumene)1,900 9,900 --0.000243 78-93-3 2-Butanone (MEK)27,000 190,000 --0.00468 75-09-2 Methylene Chloride 57 1,000 --0.001 108-10-1 4-Methyl-2-pentanone (MIBK)3,300 14,000 --0.00188 1634-04-4 Methyl tert-butyl ether 47 210 0.3 0.000212 91-20-3 Naphthalene 3.8 17 51 0.001 103-65-1 n-Propylbenzene 3,800 24,000 --0.000206 100-42-5 Styrene 6,000 35,000 --0.000234 630-20-6 1,1,1,2-Tetrachloroethane 2 8.8 --0.000264 79-34-5 1,1,2,2-Tetrachloroethane 0.6 2.7 --0.000365 76-13-1 1,1,2-Trichlorotrifluoroethane 6,700 28,000 --0.000365 127-18-4 Tetrachloroethene 24 100 --0.000276 108-88-3 Toluene 4,900 47,000 9 0.000434 87-61-6 1,2,3-Trichlorobenzene 63 930 --0.000306 120-82-1 1,2,4-Trichlorobenzene 24 110 --0.000388 71-55-6 1,1,1-Trichloroethane 8,100 36,000 --0.000286 79-00-5 1,1,2-Trichloroethane 1.1 5 --0.000277 79-01-6 Trichloroethene 0.94 6 --0.000279 75-69-4 Trichlorofluoromethane 23,000 350,000 --0.000382 96-18-4 1,2,3-Trichloropropane 0.0051 0.11 --0.000741 95-63-6 1,2,4-Trimethylbenzene 300 1,800 --0.000211 526-73-8 1,2,3-Trimethylbenzene 340 2,000 --0.000287 108-67-8 1,3,5-Trimethylbenzene 270 1,500 --0.000266 75-01-4 Vinyl chloride 0.059 1.7 --0.000291 1330-20-7 Xylenes, Total 580 2,500 142 0.000698 NA TRPH ----1,000 33 NA TPH-GRO ----150 0.1 NA TPH-DRO ----500 0.769 CAS – Chemical Abstracts Service. NA - Not Applicable. MDL - Laboratory Method Detection Limit. -- Not Established. EPA RSL – EPA Regional Screening Level (November 20213. EPA MCL - EPA Maximum Contaminant Level (November 2023). DEQ-DERR - Utah Department of Environmental Quality-Division of Environmental Response. mg/kg – milligrams per kilogram, mg/L – milligrams per liter TRPH - Total Recoverable Petroleum Hydrocarbons TPH-GRO - Total Petroleum Hydrocarbons, Gasoline Range Organics TPH-DRO - Total Petroleum Hydrocarbons, Diesel Range Organics Soil TABLE 1A SCREENING LEVELS FOR CONTAMINANTS OF CONCERN - VOCs AND PETROLEUM HYDROCARBONS IN SOIL MDL (Soil)CAS#Parameter EPA RSL Soil Resident EPA RSL Soil Industrial MDL Soil (mg/kg)(mg/kg)(mg/kg) Arsenic 7440-38-2 0.68 3 0.65 Barium 7440-39-3 15000 220000 0.26 Cadmium 7440-43-9 71 980 0.07 Chromium (Total-Dissolved)1 7440-47-3 120,000 1,800,000 0.14 Chromium (Hexavalent)18540-29-9 0.3 63 0.268 Lead 7439-92-1 200 800 0.19 Mercury 7439-97-6 9.4 40 0.0028 Selenium 7782-49-2 390 5,800 0.74 Silver 7440-22-4 390 5,800 0.28 MDL - Method Detection Limit TABLE 1B SCREENING LEVELS FOR CONTAMINANTS OF CONCERN - METALS IN SOIL Analyte CAS No. EPA RSL Resident Soil EPA RSL Industrial Soil CAS – Chemical Abstracts Service. mg/kg – milligrams per kilogram. mg/L – milligrams per liter. EPA RSL - EPA Regional Screening Level (November 2023). NE - Not Established. 1) EPA RSLs are for Chromium III (insoluble salts). MDL Soil (mg/kg)(mg/kg)(mg/kg) PCB 1016 12674-11-2 4.11 27 0.011822 PCB 1221 11104-28-2 0.200 0.83 0.011822 PCB 1232 11141-16-5 0.172 0.72 0.011822 PCB 1242 53469-21-9 0.230 0.95 0.011822 PCB 1248 12672-29-6 0.227 0.94 0.007379 PCB 1254 11097-69-1 0.235 0.97 0.007379 PCB 1260 11096-82-5 0.240 1.0 0.007379 PCBs -- Polychlorinated Biphenyls CAS – Chemical Abstracts Service. mg/kg – milligrams per kilogram. mg/L – milligrams per liter. EPA RSL – EPA Regional Screening Level. TABLE 1C Analyte CAS No. EPA RSL Resident Soil EPA RSL Industrial Soil SCREENING LEVELS FOR CONTAMINANTS OF CONCERN - PCBs IN SOIL VOCs Soil SW-846 8260B 4 oz glass, none, 4°C 14 days 0.01 to 0.0004 mg/kg RCRA Metals Soil SW-846 6010B, 7471 4 oz glass, 4°C 180 days 0.0843 to 0.2 mg/kg Chromium (Hexavalent)Soil 3060A/7199 4 oz glass, 4°C 30 days 0.268 mg/kg TPH-GRO Soil 8260/GRO 4 oz glass, 4°C 14 days 0.0314 mg/l TPH-DRO Soil 8015D/DRO 4 oz glass, 4°C 14 days 0.769 mg/kg TRPH Soil 9071B 4 oz glass, 4°C 28 days 33.0 mg/kg PCBs Soil 8082 4 oz glass, 4°C 1 year 0.00738 to 0.01182 mg/kg TABLE 2 ANALYTICAL METHOD SUMMARY Matrix (Solid/Liquid/Soil Gas)Parameter Analytical Method Sample container/ preservative Holding Time Laboratory Method Detection Limit (MDL) Sample Location Rationale Sample ID Sample Matrix Analytes Western Portion of Site Delineate metals, VOC, and petroleum hydrocarbon impacts to surface soil from historical site activities. SS-1 through SS-9, SS-12, SS-13 Surface Soil TPH-GRO, TPH-DRO, TRPH, VOCs, RCRA 8 Metals, Hexavalent Chromium Former Crusher Area Delineate potential presence of PCBs from historic site activities. SS-10 Surface Soil PCBs Soil Stockpile Northwest of Residence Delineate metals, VOC, and petroleum hydrocarbon impacts. SS-11 Surface Soil TPH-GRO, TPH-DRO, TRPH, VOCs, RCRA 8 Metals, Hexavalent Chromium TPH - Total Petroluem Hydrocarbons. GRO - Gasoline Range Organics. DRO - Diesel Range Organics. RCRA 8 Metals - Arsenic, Barium, Cadmium, Chromium, Lead, Mercury, Selenium, Silver. TABLE 3 SUMMARY OF SAMPLING LOCATIONS TRPH - Total Recoverable Petroleum Hydrocarbons PCBs - Polychlorinated Biphenyls