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HomeMy WebLinkAboutMO-2750_3163_CA_MRP_20230808SUBSEQUENT MONITORING REPORT RUSHER'S TIRE SERVICE (INCIDENT NO. 3136) 403 NORTH MAIN STREET SALISBURY, ROWAN COUNTY, NORTH CAROLINA ESP Project No. 23-00200-053 Prepared For: North Carolina Department of Environmental Quality Division of Waste Management 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Prepared By: ESP Associates, Inc. P. O. Box 7030 Charlotte, North Carolina 28241 August 8, 2023 ESP Associates, Inc. P.O. Box 7030 • Charlotte, NC 28241 1.800.960.7317 • NC: 704.583.4949, fax 704.583.4950 • SC: 803.802.2440, fax 803.802.2515 www.espassociates.com August 8, 2023 Mr. Scott Ryals, PE, CEE North Carolina Department of Environmental Quality Division of Waste Management 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Email: scott.ryals@ncdenr.gov Reference: SUBSEQUENT MONITORING REPORT Rusher’s Tire Service (Incident #3136) 403 North Main Street Salisbury, Rowan County, North Carolina ESP Project No. 23-00200-053 Dear Mr. Ryals: ESP Associates, Inc. (ESP) is pleased to present this Subsequent Monitoring Report documenting activities performed at the subject site, Rusher’s Tire Service, in accordance with North Carolina Department of Environmental Quality (NCDEQ), Task Authorization No. 1, approved on May 18, 2023. The subject site is located at 403 North Main Street in Salisbury, North Carolina. We appreciate the opportunity to provide environmental services on this project. If you should have any questions, please do not hesitate to contact us at (704) 583-4949. Sincerely, ESP Associates, Inc. Matthew R. Craig Chrsitopher J. Ward, PG, RSM Project Manager Senior Geologist Attachment – Subsequent Monitoring Report TABLE OF CONTENTS Section Page SITE INFORMATION ..................................................................................................................... i EXECUTIVE SUMMARY ............................................................................................................. iii 1.0 INTRODUCTION ............................................................................................................... 1 1.1 SITE SETTING ........................................................................................................... 1 1.2 SITE GEOLOGY AND HYDROGEOLOGY ................................................................. 1 1.3 SURFACE WATER ..................................................................................................... 2 1.4 WATER SUPPLY WELLS ........................................................................................... 2 2.0 SITE HISTORY .................................................................................................................. 3 3.0 FIELD ACTIVITIES ........................................................................................................... 6 3.1 WATER LEVEL GAUGING ........................................................................................ 6 3.2 FREE PRODUCTION EVALUATION .......................................................................... 6 3.3 GROUNDWATER SAMPLING ................................................................................... 6 3.4 FIELD QUALITY CONTROL SAMPLING AND ANALYSIS ....................................... 7 4.0 GROUNDWATER ANALYTICAL RESULTS .................................................................... 8 5.0 CONCLUSIONS AND RECOMMENDATIONS ................................................................. 9 6.0 REFERENCES ................................................................................................................. 10 FIGURES Figure 1 USGS Topographic Site Location Map Figure 2 Site Map Figure 3 Groundwater Elevation Map Figure 4 Groundwater Results Map Figure 5 Benzene Isoconcentration Map TABLES Table 1 Monitoring Well Construction and Groundwater Elevation Data Table 2 Summary of Groundwater Analytical Results APPENDICES Appendix A Tables of Previous Groundwater Elevations and Analytical Results Appendix B Field Documentation and Site Photos Appendix C Laboratory Data Reports Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 i SITE INFORMATION Date of Report: August 8, 2023 NCDEQ Incident No: 3136 NCDEQ UST No: MO-2750 Site Name: Rusher’s Tire Service Site Location: 403 North Main Street Salisbury, Rowan County, North Carolina 28146 Latitude: N 35.255173 Longitude: W -81.043610 UST Owner/ Operator: N/A - NCDEQ State Lead Program Current Property Owner: Steve Livengood 1955 Sharonview Way Fort Mill, S.C. 29707 (704) 339-7702 Current Property Occupant: Sharonview Federal Credit Union (704) 509-1777 Consultant: ESP Associates, Inc. P.O. Box 7030 Charlotte, North Carolina 28241 (704) 583-4949 Laboratory: Pace Analytical Services, LLC NCDEQ No. 5342 9800 Kincey Avenue Huntersville, North Carolina 28028 (704) 875-9092 Release Information: Release Discovery Date: February 14, 1986 Estimate Quantity: Unknown Cause of Release: Unknown Source of Release: Three 3,000-gallon USTs Currently Active Tanks: None Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 ii I, Christopher J. Ward, a Professional Geologist for ESP Associates, Inc., do certify that the information contained in this report is correct and accurate to the best of my knowledge. ESP Associates, Inc. is licensed to practice both geology and engineering in North Carolina. ESP Associates, Inc.’ certification numbers are: Geology: C-556 / Engineering: F-1407 Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 iii EXECUTIVE SUMMARY This executive summary section provides an abbreviated reporting of our Site observations and findings. Refer to the main text and appendices for a complete reporting of our observations and findings. ESP Associates, Inc. (ESP) has completed a Subsequent Monitoring Report documenting assessment activity performed at the Rusher’s Tire Service site (Incident No. 3136). The site is an approximate 0.83-acre developed site (Tax Parcel No. 011420) located at 403 North Main Street in Salisbury, Rowan County, North Carolina. This report was completed to summarize the findings of assessment activities performed on June 1, 2023, in accordance with North Carolina Department of Environmental Quality (NCDEQ), Task Authorization No. 1, approved on May 18, 2023. The work was performed as part of the State Lead Contract #N70522-D between NCDEQ and ESP. This report was prepared in general accordance with the 15A NCAC 2L .0115 regulations and the NCDEQ Underground Storage Tank (UST) Section Guidelines for Assessment and Corrective Action for UST Releases, January 2021, under the supervision of Christopher J. Ward, North Carolina registered professional geologist (North Carolina License No. 1600). Field activities performed by ESP on June 1, 2023, included: • Gauging static water levels in existing site monitoring wells MW-8 and MW-9; and • Collecting groundwater samples from monitoring wells MW-8 and MW-9. Collected groundwater samples were analyzed for volatile organic compounds (VOCs) for comparison to both North Carolina Groundwater Quality Standards 15A NCAC 2L .0202 (2L Standards) and Gross Contaminant Levels (GCLs). Based on results of the above sampling activities, ESP concludes the following: • No water supply wells are located within 1,000 feet of the release; • The static water levels at the site ranged from 13.85 to 13.89 ft bTOC; • Based on historical data water level measurements, groundwater at the site is expected to flow generally to the southeast; • No free product was measured in MW-8 or MW-9; • Benzene was detected above its GCL of 5,000 µg/L in MW-8 (6,020 µg/L); • EDB was detected above its GCL of 50 µg/L in MW-8 (109 µg/L); • Multiple VOCs were detected above their respective 2L standards in groundwater samples collected from MW-8 and MW-9. These analytes included benzene, ethylbenzene, isopropylbenzene, naphthalene, n-propylbenzene, toluene, 1,2,4-trimethylbenzene, 1,3,5- trimethylbenzene, and xylenes; Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 iv • The field duplicate QC sample of MW-9 generally yielded comparable results as to the MW-9 sample analyses; • Benzene concentrations in MW-8 (6,020 µg/L) in June 2023 decreased from June 2021 (6,160 µg/L) and June 2020 (12,000 µg/L) events; • EDB concentrations in MW-8 (109 µg/L) in June 2023 decreased from June 2021 (146 µg/L) and June 2020 (300 µg/L) events; • Other detected VOCs in MW-8 increased in concentrations in June 2023 as compared to the June 2021 event; however, VOCs decreased in concentrations in June 2023 as compared to the June 2020 event; and • Constituent concentrations detected in MW-9 in the June 2023 sampling event have generally increased as compared to the June 2021 event while concentrations have mostly decreased as compared to the June 2020 event. Based on the above results, ESP offers the following recommendations: • Continued annual sampling of existing monitoring wells MW-8 and MW-9; • To address continued exceedances of standards in groundwater, it is recommended that various bioremediation technologies be evaluated to facilitate the degradation of VOCs in the subsurface. Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 1 INTRODUCTION 1.1 Site Setting The Rusher’s Tire Service site is an approximate 0.83-acre developed site (Tax Parcel No. 5760-18- 41-6915) located at 403 North Main Street in Salisbury, Rowan County, North Carolina (see Figures 1 and 2). The site includes an occupied approximate 36,400-sqft Sharonview Federal Credit Union building built in 2020 on the northern portion of the site and associated asphalt paved parking on the southern portion of the site. The site is bounded to the north by North Main Street, to the east by a commercial business, to the south by a retail strip center, and to the west by East Kerr Street. 1.2 Site Geology and Hydrogeology A consideration of surface and subsurface drainage and geology are of interest since they provide an indication of the direction that contamination, if present on-site or off-site, could be transported. The site is located within the Charlotte Belt of the Piedmont Physiographic Province. The Piedmont Physiographic Province generally consists of low to medium elevation, rounded hills, and long rolling northeast to southwest trending ridges with incised creeks and river channels. Rock at the site is described as metavolcanic rock. In-place chemical and physical weathering of parent rocks typically form residual soils in the Piedmont region. Weathering is facilitated by the presence of fractures, joints, and less resistant minerals in the rock. In areas not altered by erosion, alluvial deposition or the activities of man, the typical residual soil profile consists of clay-rich unconsolidated materials at the surface, transitioning to sandy silts and silty sands at depth. Typically, the boundary between soil and rock is not sharply defined. This transitional zone is termed “partially weathered rock” or saprolite. Information obtained from the Web Soil Survey for Rowan County depicts soils on the site as Urban land (Uf). In the Piedmont, groundwater generally occurs in pore spaces within soils and in the structural features present in the underlying rock (i.e., joints, fractures, and faults). Recharge to the water table is primarily by precipitation infiltrating the surficial soils and percolating downward under the influence of gravity to the water table. Typically, the water table is not a level surface, but a subdued reflection of the land surface. The depth to the water table is not consistent and is dependent upon several factors that include the amount of rainfall, permeability of the soil, the extent of fracturing in the underlying rock and the influences of groundwater pumping. The direction and movement of groundwater through soil is generally dependent on soil type, the presence of relict structures, and the textures of the underlying rock. Fractures, faults, folds, and foliation planes affect the migration of groundwater in rock. No major geologic features (faults, etc.) are present at or near the site. Groundwater typically flows in directions parallel to the ground surface and under the influence of gravity, migrates to discharge points such as surface water features, the toes of slopes or natural springs. Fluctuations in the depth of the water table can be Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 2 expected depending on variations in precipitation, surface water run-off and other factors. Normally, the highest levels of the water table occur in late winter and spring and the lowest levels occur in the late summer and fall. Based on historical water level elevation data, groundwater at the site is expected to flow generally to the southeast. 1.3 Surface Water An unnamed tributary to Henderson Branch is located approximately 1,420 feet north of the source area. This surface water body is considered upgradient and not at risk to constituent migration from the site (see Figure 1). 1.4 Water Supply Wells No water supply wells were identified within 1,000 feet of the source area. According to Terracon Consultants, Inc (Terracon) “Initial Monitoring Report”, they conducted a windshield survey on June 24, 2021 to identify possible water supply wells and municipal water meters in the vicinity of the site. No water supply wells were identified while municipal water was noted as being available to the site and surrounding properties. Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 3 2.0 SITE HISTORY The following description of historical site activities was obtained from a report titled “Initial Monitoring Report - Rusher’s Tire Service (Incident #3163)” dated July 9, 2021, by Terracon. Tabulated historic groundwater elevations, laboratory analytical results, and a well location map are provided in Appendix A for reference. The former on-site UST system comprised of three 3,000-gallon gasoline USTs that operated from the early 1950s to the mid-to-late 1980s. Former waste oil and heating oil USTs were also documented at the site. One prior release of petroleum product resulted in the installation of 2 monitoring wells and the replacement of the leaking UST in April of 1986. The gasoline USTs, associated piping, dispenser islands and approximately 37 cubic yards of petroleum impacted soil were removed from the site in March 2001. Five monitoring wells were installed between November 2001 and January 2002. The site was accepted into the NCDEQ State Lead Program in March of 2003. In June 2003, S&ME performed a Free Product Evaluation/Recovery Report that included a free product evaluation of all on-site monitoring wells. Approximately 0.45 feet of free product was measured in well MW-4 and a trace amount of free product was measured in well MW-1. Approximately 8 gallons of free product and contact water were removed from the wells via hand- bailing. No measurable free product was observed in the monitoring wells following the hand- bailing event. Between June and September 2003, free product gauging events were conducted by Geological Resources, Inc. (GRI) that indicated approximately 0.41 to 0.55 feet of free product in MW-4 and a sheen to 0.02 feet of free product in MW-1. Benzene was detected in MW-2 and naphthalene was detected in MW-3 above 2L standards in June 2003. A receptor survey was also completed in June 2003 that did not indicate any water supply wells within a 1,500-foot radius of the release. Between October and December 2003, GRI conducted a mobile multi-phase extraction (MMPE) event and groundwater sampling activities. During the MMPE event, approximately 727 gallons of vapor phase hydrocarbons were removed along with 7,468 gallons of petroleum contact groundwater. During the sampling event in December, free product was detected in monitoring well MW-1 at a thickness of 0.04 feet. Multiple petroleum constituents were detected above their respective 2L standards in monitoring wells MW-3, MW-4, and MW-6. In March 2004, GRI advanced nine soil borings in the vicinity of the former UST basin, product piping and dispenser island. Soil analytical results were below the regulatory action levels for both TPH-GRO and TPH-DRO in two of the samples and no constituents were detected in the other soil samples. It was determined that most of the affected soils had been removed during UST closure activities except for a minor amount of soil impact within the former tank basin that was not accessible due to proximity to local utilities. Between April 2004 and October 2005, groundwater monitoring activities were conducted by GRI and additional soil sampling was conducted in April 2004. Multiple petroleum constituents were Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 4 detected in wells MW-1, MW-4, and MW-6 above their respective GCLs and 2L standards. Soil samples collected in the vicinity of the remaining affected soils indicated concentrations below soil- to-water Maximum Soil Contaminant Concentrations (MSCCs) except for benzene, which was detected below the Industrial/Commercial MSCC. In October 2010, Progress Environmental Inc. (Progress) performed a Pre-Cap Monitoring event that included the installation of a four-inch monitoring well (MW-1R) to replace MW-1 and the sampling of the existing monitoring wells. Analytical results from wells MW-1R, MW-4 and MW- 6 indicated constituents above their respective GCLs and results from well MW-3 indicated constituents above their respective 2L standards. In September 2011, Progress oversaw the excavation of accessible impacted soil as well the abandonment of wells MW-1R, MW-4 and MW-6. Approximately 1,076 tons of impacted soil was removed from the vicinity of the former UST system. Confirmation samples indicated target compounds above their respective Soil-to-Groundwater MSCCs and aliphatics, aromatics, and benzene exceeding their Residential MSCCs. Prior to backfilling the excavation, Progress implemented in-situ chemical remediation by placing approximately 1,300 pounds of PermeOx Plus in the base of the excavation at the approximate depth of the saturated zone. In addition to the excavation of impacted soils, Progress removed one 550-gallon waste oil UST near the eastern corner of the former service garage/gasoline station. Approximately 401 gallons of residual liquids were removed from the UST along with approximately 71.80 tons of petroleum-impacted soils. Confirmation samples taken in the waste oil excavation indicated targeted compounds in excess of the Soil-to-Groundwater MSCCs and further soil assessment was recommended. In October 2011, Progress observed the installation of wells MW-1A, MW-4R, MW-6R, and MW- 7. In November, Progress returned and sampled the site monitoring wells. Benzene was detected in groundwater samples from monitoring wells MW-1A, MW-4R and MW-6R above its GCL and EDB and 1,2-dichloroethane were detected in MW-6R above their GCL. Additional target compounds were detected in multiple wells exceeding their respective 2L standards. No constituents were detected above their 2L standards in wells MW-5 and MW-7. In February 2013, Progress conducted a groundwater sampling event that included sample collection from all existing site monitoring wells. Benzene was detected above its GCL in wells MW-1A, MW- 4R, and MW-6R while EDB and 1,2-dichloroethane were detected in well MW-6R above their GCLs. Petroleum constituents were detected above their respective 2L standards in all site wells except for MW-5. Between December 2014 and August 2018, S&ME performed groundwater monitoring events that included sampling groundwater from all site wells and gauging for free product in well MW-1. O- Sox were installed in wells MW-1A, MW-3, MW-4R, and MW-6R in July 2017 to facilitate remediation and were removed in August 2018. In February 2019, S&ME abandoned all seven of the site monitoring wells (MW-1A, MW-2, MW- 3, MW-4R, MW-5, MW-6R, and MW-7) due to the redevelopment of the property as the current bank building. Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 5 In May 2019, Griffith Enterprises performed an Initial Site Assessment following the demolition of the former service station in May 2019. The assessment included the removal of two pedestal style hydraulic lifts, a concrete oil change pit and 30 feet of associated piping, and a bay drain and 80 feet of associate piping. Soils samples taken indicated soil constituents at concentrations below the Commercial/Industrial MSCCs. S&ME provided oversight for the removal of 490.96 tons of petroleum impacted soils in the vicinity of the former gasoline UST basin following the removal of the building and associated petroleum concerns. In August 2019, a 550-gallon waste oil UST was uncovered during grading activities of the area of the former service station. The UST along with approximately 60.2 tons of petroleum impacted soils were excavated and removed from the site. Confirmation samples indicated no detected constituents that exceeded the Residential MSCCs. In May 2020, two new monitoring wells (MW-8 and MW-9) were installed near former MW-1A and MW-6R locations. These wells were subsequently sampled in June 2020 with benzene, EDB, and 1,2-dichloroethane detected above GCLs along with various other constituents above 2L standards in MW-8 while benzene was detected above its GCL along with several other VOCs above their 2L standards in MW-9. In June 2020, groundwater from monitoring wells MW-8 and MW-9 were sampled with benzene, EDB, and 1,2-dichloroethane detected above GCLs along with various other constituents above 2L standards in MW-8 while benzene was detected above its GCL along with several other VOCs above their 2L standards in MW-9. In June 2021, Terracon samples MW-8 and MW-9. Benzene and EDB were detected above GCLs along with various other constituents above 2L standards in MW-8 while no analytes were detected above GCLs in MW-9. Several VOCs were detected above their 2L standards in MW-9. Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 6 3.0 FIELD ACTIVITIES Field activities performed by ESP on June 1, 2023, included: • Gauging static water levels in existing site monitoring wells MW-8 and MW-9; and • Collecting groundwater samples from monitoring wells MW-8 and MW-9. As provided in Appendix B, field logbook entries along with water level survey, groundwater sampling, and field instrument calibration forms were completed in the field to document site activities. Site photographs are also available in Appendix B. Details of field activities are provided below. 3.1 Water Level Gauging On June 1, 2023, prior to purging or collecting groundwater samples, depth to groundwater from the top of casing (TOC) within each monitoring well was measured and recorded using a decontaminated electronic water level meter. The water level measurements were collected by first removing covers and plunger caps from all site monitoring wells and allowing water within the wells to stabilize. The electronic water level meter probe was then lowered into the well and the depth to water measured relative to the well’s TOC. As noted on Table 1, static water level depths were measured at 13.89 feet below TOC (ft bTOC) in MW-8 and 13.85 ft bTOC in MW-9. The static water elevations from these two monitoring wells are depicted on Figure 3. 3.2 Free Product Evaluation During the June 1, 2023, gauging event, free product was not encountered in either monitoring wells MW-8 or MW-9. 3.3 Groundwater Sampling On June 1, 2023, groundwater samples were collected from monitoring wells MW-8 and MW-9. Groundwater samples were collected using dedicated and disposable polyvinyl chloride (PVC) bailers (1.5” x 3’) attached to braided nylon rope. Prior to groundwater sample collection, each well was purged using the bailer. During purging, water quality parameters including pH, conductivity, temperature, and turbidity were measured using calibrated field water quality instruments. Readings were taken at the start of purging and periodically until a minimum of three well volumes were removed from the well and water quality parameters stabilized. Following purging, a groundwater sample for laboratory analysis was collected from the well using the bailer. The water quality parameters were recorded on groundwater sampling forms along with time, water level depth, and cumulative volume of water purged (see groundwater sampling forms in Appendix B). Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 7 Groundwater samples were collected following Guidelines for Sampling by the Underground Storage Tank Section, Division of Waste Management, North Carolina Department of Environmental Quality (NCDEQ, 2022). Groundwater samples were placed in laboratory- prepared vials preserved with hydrochloric acid (HCl), labeled, and stored on ice in a cooler for subsequent delivery under standard chain-of-custody (COC) procedures to Pace Analytical (Pace), a North Carolina-certified laboratory, located in Huntersville, North Carolina, for analysis. The groundwater samples were analyzed for VOCs by EPA Method 6200B including methyl-tert-butyl ether (MTBE), ethylene dibromide (EDB), and isopropyl ether (IPE). 3.4 Field Quality Control Sampling and Analysis One field duplicate sample (designated Field Duplicate) was prepared by collecting an additional groundwater sample from MW-9. The sample was placed into laboratory-prepared vials preserved with HCl immediately following collection. The field duplicate was analyzed for VOCs to affirm the accuracy of analytical results. Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 8 4.0 GROUNDWATER ANALYTICAL RESULTS Results of the laboratory analysis of groundwater samples MW-8 and MW-9 are tabulated in Table 2. As noted in Table 2, the groundwater analytical results are compared to both 2L standards and GCLs (Gross Contaminant Levels). The Pace laboratory analytical report is provided in Appendix C. A summary of the analytical results is as follows: • Benzene was detected above its GCL of 5,000 µg/L in MW-8 (6,020 µg/L); • EDB was detected above its GCL of 50 µg/L in MW-8 (109 µg/L); • Multiple VOCs were detected above their respective 2L standards in groundwater samples collected from MW-8 and MW-9. These analytes included benzene, ethylbenzene, isopropylbenzene, naphthalene, n-propylbenzene, toluene, 1,2,4-trimethylbenzene, 1,3,5- trimethylbenzene, and xylenes; and • The field duplicate QC sample of MW-9 generally yielded comparable results as to the MW-9 sample analyses. Groundwater sampling results relative to each monitoring well location showing VOCs exceeding their GCL and/or 2L standards are depicted on Figure 4. Figure 5 depicts the approximate lateral extent of the dissolved benzene groundwater plume. Notable trends of groundwater laboratory analytical results from the June 2023 sample event as compared to previous June 2021 and June 2020 sampling events are summarized below: • Benzene concentrations in MW-8 (6,020 µg/L) decreased in June 2023 as compared to the June 2021 (6,160 µg/L) and June 2020 (12,000 µg/L) events; • EDB concentrations in MW-8 (109 µg/L) decreased in June 2023 as compared to the June 2021 (146 µg/L) and June 2020 (300 µg/L) events; • Other detected VOCs in MW-8 increased in concentrations in June 2023 as compared to the June 2021 event; however, VOCs decreased in concentrations in June 2023 as compared to the June 2020 event; and • Constituent concentrations detected in MW-9 in the June 2023 sampling event have generally increased as compared to the June 2021 event while concentrations have mostly decreased as compared to the June 2020 event. Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 9 5.0 CONCLUSIONS AND RECOMMENDATIONS Based on results of the above sampling activities, ESP concludes the following: • No water supply wells are located within 1,000 feet of the release; • The static water levels at the site ranged from 13.85 to 13.89 ft bTOC; • Based on historical data water level measurements, groundwater at the site is expected to flow generally to the southeast; • No free product was measured in MW-8 or MW-9; • Benzene was detected above its GCL of 5,000 µg/L in MW-8 (6,020 µg/L); • EDB was detected above its GCL of 50 µg/L in MW-8 (109 µg/L); • Multiple VOCs were detected above their respective 2L standards in groundwater samples collected from MW-8 and MW-9. These analytes included benzene, ethylbenzene, isopropylbenzene, naphthalene, n-propylbenzene, toluene, 1,2,4-trimethylbenzene, 1,3,5- trimethylbenzene, and xylenes; • The field duplicate QC sample of MW-9 generally yielded comparable results as to the MW-9 sample analyses; • Benzene concentrations in MW-8 (6,020 µg/L) in June 2023 decreased from June 2021 (6,160 µg/L) and June 2020 (12,000 µg/L) events; • EDB concentrations in MW-8 (109 µg/L) in June 2023 decreased from June 2021 (146 µg/L) and June 2020 (300 µg/L) events; • Other detected VOCs in MW-8 increased in concentrations in June 2023 as compared to the June 2021 event; however, VOCs decreased in concentrations in June 2023 as compared to the June 2020 event; and • Constituent concentrations detected in MW-9 in the June 2023 sampling event have generally increased as compared to the June 2021 event while concentrations have mostly decreased as compared to the June 2020 event. Based on the above results, ESP offers the following recommendations: • Continued annual sampling of existing monitoring wells MW-8 and MW-9; • To address continued exceedances of standards in groundwater, it is recommended that various bioremediation technologies be evaluated to facilitate the degradation of VOCs in the subsurface. Subsequent Monitoring Report ESP Project No. 23-00200-053 Rusher’s Tire Service (Incident #3136) August 8, 2023 10 6.0 REFERENCES Rowan County, North Carolina GIS website, https://gis.rowancountync.gov/gismaps/. 1985 Geologic Map of North Carolina, The North Carolina Geological Survey, Phillip M. Brown, 1985. Guideline for Sampling Underground Storage Tank Section, Division of Waste Management, North Carolina Division of Environmental Quality, March 7, 2022, Change 4. Terracon, July 9, 2021, Initial Monitoring Report: 403 North Main Street (Incident #3163), Salisbury, Rowan County, North Carolina. FIGURES 0 350 700Feet ESP Associates, Inc. P.O. Box 7030Charlotte, NC 28241 Phone 704.583.4949 www.espassociates.com SHEET TITLE PROJECT PROJECT NO. SCALE DRAWN BY CHECKED BY 23-00200-053 ET CWDATE07/07/23 FIGURE 1USGS TOPOGRAPHIC SITE LOCATION MAPµAs Shown SALISBURY, NORTH CAROLINA SITE BOUNDARY All locations are approximate. RUSHER'S TIRE SERVICE LEGEND: < < MW-8 MW-9 EAST KERR STREETNORTH MAIN STREETFORMER RUSHER'S TIRE SERVICE 0 20 40Feet ESP Associates, Inc. P.O. Box 7030Charlotte, NC 28241 Phone 704.583.4949 www.espassociates.com SHEET TITLE PROJECT PROJECT NO. SCALE DRAWN BY CHECKED BY 23-00200-053 ET CWDATE07/07/23 FIGURE 2SITE MAPµAs Shown SALISBURY, NORTH CAROLINA SITE BOUNDARY MONITORING WELL All locations are approximate. RUSHER'S TIRE SERVICE LEGEND: < < < MW-8 MW-9 EAST KERR STREETNORTH MAIN STREETFORMER RUSHER'S TIRE SERVICE (88.04-ft) (87.71-ft) 0 25 50Feet ESP Associates, Inc. P.O. Box 7030Charlotte, NC 28241 Phone 704.583.4949 www.espassociates.com SHEET TITLE PROJECT PROJECT NO. SCALE DRAWN BY CHECKED BY 23-00200-053 ET CWDATE07/07/23 FIGURE 3GROUNDWATER ELEVATION MAPµAs Shown SALISBURY, NORTH CAROLINA SITE BOUNDARYMONITORING WELLESTIMATED GROUNDWATER FLOW DIRECTION All locations are approximate. RUSHER'S TIRE SERVICE LEGEND: < NCDEQ Incident No. 3136Rusher's Tire Service 403 North Main Street Salisbury, North Carolina Groundwater elevationsmeasured on June 1, 2023 < < MW-8 MW-9 EAST KERR STREETNORTH MAIN STREET0 25 50Feet ESP Associates, Inc. P.O. Box 7030Charlotte, NC 28241 Phone 704.583.4949 www.espassociates.com SHEET TITLE PROJECT PROJECT NO. SCALE DRAWN BY CHECKED BY 23-00200-053 ET CWDATE07/07/23 FIGURE 4GROUNDWATER RESULTS MAPµAs Shown SALISBURY, NORTH CAROLINA SITE BOUNDARY MONITORING WELL All locations are approximate. RUSHER'S TIRE SERVICE LEGEND: < Yellow highlighted values are greater thanthe GCL. Only analytes above 2L Standards shown. < < MW-8 MW-9 EAST KERR STREETNORTH MAIN STREET0 25 50Feet ESP Associates, Inc. P.O. Box 7030Charlotte, NC 28241 Phone 704.583.4949 www.espassociates.com SHEET TITLE PROJECT PROJECT NO. SCALE DRAWN BY CHECKED BY 23-00200-053 ET CWDATE07/07/23 FIGURE 5BENZENE ISOCONCENTRATION MAPµAs Shown SALISBURY, NORTH CAROLINA SITE BOUNDARY MONITORING WELL APPROXIMATE CONCENTRATION CONTOUR All locations are approximate. RUSHER'S TIRE SERVICE LEGEND: < 6,020 791 Benzene Comparison Criteria: ug/L - micrograms per liter2L Standard - 1 ug/LGCL - 5,000 ug/L 1,000 ug/L Analytical Results Presented in Table 3.Table 2. 5,000 ug/L 1 ug/L TABLES Table 1 Monitoring Well Construction and Groundwater Elevation Data Rusher's Tire Service Salisbury, North Carolina NCDEQ Incident No. 3163 Well ID Date Intalled Screened Interval (ft BGS) a Bottom of Well (ft BGS) a Top of Casing Elevation (ft) a,b Date Water Level Measured Depth to Water from Top of Casing (ft) Groundwater Elevation (ft bTOC) 06/10/20 11.41 90.52 06/24/21 12.75 89.18 06/01/23 13.89 88.04 06/10/20 11.80 89.76 06/24/21 13.00 88.56 06/01/23 13.85 87.71 Notes: a Top of casing elevations, screened intervals, and bottom of well measurements are from previous consultants' monitoring reports. b Top of casing elevations are based off of an assumed benchmark elevation. BGS - below ground surface ft - feet ft bTOC - feet below TOC TOC - top of casing 25 23 101.93 101.56 MW-8 MW-9 5/12/2020 5/12/2020 10-25. 8-23. Table 2 Summary of Groundwater Analytical Results Rusher's Tire Service Salisbury, North Carolina NCDEQ Incident No. 3163 1 0.02 0.40 600 70 6 70 600 400 400 500 500 500 5,000 50 400 80,000 30,500 6,000 26,100 260,000 28,500 24,100 50,000 50,000 50,000 6/10/2020 12,000 300 540 3,100 130J 630 310 33,000 2,100 500 15,200 NR NR 6/24/2021 6,160 146 165 2,070 68.3 362 170 19,100 1,200 311 9,840 NR NR 6/01/2023 6,020 109 <80.5 2,570 78.3 J 476 212 25,300 1,470 357 13,070 8,800 4,270 6/10/2020 14,000 ND ND 3,300 120J 360 310 59,000 2,000 530 17,300 NR NR 6/24/2021 199 <34 <40.2 2,800 121 559 296 15,200 2,130 482 14,280 NR NR 6/01/2023 791 <68.0 <64.4 3,290 118 J 1,260 324 37,800 2,220 429 17,450 11,300 6,150 Field Duplicate (MW-9) 6/01/2023 586 <54.4 <64.4 2,800 95.5 J 415 247 31,400 2,040 400 15,480 10,000 5,480 Notes: Bold values indicate constituent concentrations were greater than the 2L Standard. Yellow highlighted values indicate constituent concentrations were greater than the GCL. Samples presented prior to the June 1, 2023 event were obtained from prevous consultants reports. <## - less than the method detection limit µg/L - micrograms per liter 2L Standard - North Carolina 02L standard for groundwater GCL - Gross Contaminant Level J - Estimated concentration above the method detection limit and below the reporting limit. NR - not reported ND - not detected MW-8 MW-9 1,3,5-TrimethylbenzeneXylene (Total)m&p-Xyleneo-Xylene2L Standard (µg/L) GCL (µg/L)Naphthalenen-PropylbenzeneToluene1,2,4-Trimethylbenzene1,2-Dibromoethane (EDB)1,2-DichloroethaneEthylbenzeneIsopropylbenzene (cumene)Sample ID Collection Date Benzene APPENDICES APPENDIX A APPENDIX B APPENDIX C #=CL# June 12, 2023 LIMS USE: FR - CHRIS WARD LIMS OBJECT ID: 92670271 92670271 Project: Pace Project No.: RE: Chris Ward ESP Associates 3475 Lakemont Boulevard Fort Mill, SC 29708 Rusher's Tire Service Dear Chris Ward: Enclosed are the analytical results for sample(s) received by the laboratory on June 02, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Bonnie Vang bonnie.vang@pacelabs.com Project Manager (704)875-9092 Enclosures cc:Account Payable, ESP Associates REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 24 #=CP# CERTIFICATIONS Pace Project No.: Project: 92670271 Rusher's Tire Service Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 24 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92670271 Rusher's Tire Service Lab ID Sample ID Matrix Date Collected Date Received 92670271001 MW-9 Water 06/01/23 16:14 06/02/23 09:13 92670271002 MW-8 Water 06/01/23 17:18 06/02/23 09:13 92670271003 Field Duplicate Water 06/02/23 09:13 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 24 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92670271 Rusher's Tire Service Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92670271001 MW-9 SM 6200B 63 PASI-CSAS 92670271002 MW-8 SM 6200B 63 PASI-CSAS 92670271003 Field Duplicate SM 6200B 63 PASI-CSAS PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 24 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92670271 Rusher's Tire Service Sample:MW-9 Lab ID:92670271001 Collected:06/01/23 16:14 Received:06/02/23 09:13 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene 791 ug/L 06/08/23 21:29 71-43-212586.2 250 Bromobenzene ND ug/L 06/08/23 21:29 108-86-112572.5 250 Bromochloromethane ND ug/L 06/08/23 21:29 74-97-5125117250 Bromodichloromethane ND ug/L 06/08/23 21:29 75-27-412576.8 250 Bromoform ND ug/L 06/08/23 21:29 75-25-212585.2 250 Bromomethane ND ug/L 06/08/23 21:29 74-83-91250415250 n-Butylbenzene ND ug/L 06/08/23 21:29 104-51-8125122250 sec-Butylbenzene ND ug/L 06/08/23 21:29 135-98-8125100250 tert-Butylbenzene ND ug/L 06/08/23 21:29 98-06-612580.8 250 Carbon tetrachloride ND ug/L 06/08/23 21:29 56-23-512583.2 250 Chlorobenzene ND ug/L 06/08/23 21:29 108-90-712571.0 250 Chloroethane ND ug/L 06/08/23 21:29 75-00-3250162250 Chloroform ND ug/L 06/08/23 21:29 67-66-3125108250 Chloromethane ND ug/L 06/08/23 21:29 74-87-3250135250 2-Chlorotoluene ND ug/L 06/08/23 21:29 95-49-812580.2 250 4-Chlorotoluene ND ug/L 06/08/23 21:29 106-43-412581.0 250 1,2-Dibromo-3-chloropropane ND ug/L 06/08/23 21:29 96-12-825085.0 250 Dibromochloromethane ND ug/L 06/08/23 21:29 124-48-112589.8 250 1,2-Dibromoethane (EDB)ND ug/L 06/08/23 21:29 106-93-412568.0 250 Dibromomethane ND ug/L 06/08/23 21:29 74-95-312598.5 250 1,2-Dichlorobenzene ND ug/L 06/08/23 21:29 95-50-112584.8 250 1,3-Dichlorobenzene ND ug/L 06/08/23 21:29 541-73-112585.0 250 1,4-Dichlorobenzene ND ug/L 06/08/23 21:29 106-46-712583.2 250 Dichlorodifluoromethane ND ug/L 06/08/23 21:29 75-71-8 IH12586.5 250 1,1-Dichloroethane ND ug/L 06/08/23 21:29 75-34-312591.8 250 1,2-Dichloroethane ND ug/L 06/08/23 21:29 107-06-212580.5 250 1,1-Dichloroethene ND ug/L 06/08/23 21:29 75-35-412587.0 250 cis-1,2-Dichloroethene ND ug/L 06/08/23 21:29 156-59-212596.0 250 trans-1,2-Dichloroethene ND ug/L 06/08/23 21:29 156-60-512599.0 250 1,2-Dichloropropane ND ug/L 06/08/23 21:29 78-87-512588.8 250 1,3-Dichloropropane ND ug/L 06/08/23 21:29 142-28-912571.0 250 2,2-Dichloropropane ND ug/L 06/08/23 21:29 594-20-712597.0 250 1,1-Dichloropropene ND ug/L 06/08/23 21:29 563-58-6125107250 cis-1,3-Dichloropropene ND ug/L 06/08/23 21:29 10061-01-512591.2 250 trans-1,3-Dichloropropene ND ug/L 06/08/23 21:29 10061-02-612590.8 250 Diisopropyl ether ND ug/L 06/08/23 21:29 108-20-312577.0 250 Ethylbenzene 3290 ug/L 06/08/23 21:29 100-41-412576.0 250 Hexachloro-1,3-butadiene ND ug/L 06/08/23 21:29 87-68-3500382250 Isopropylbenzene (Cumene)118J ug/L 06/08/23 21:29 98-82-812583.2 250 Methylene Chloride ND ug/L 06/08/23 21:29 75-09-2500488250 Methyl-tert-butyl ether ND ug/L 06/08/23 21:29 1634-04-4125106250 Naphthalene 1260 ug/L 06/08/23 21:29 91-20-3500161250 n-Propylbenzene 324 ug/L 06/08/23 21:29 103-65-112585.0 250 Styrene ND ug/L 06/08/23 21:29 100-42-512573.0 250 1,1,1,2-Tetrachloroethane ND ug/L 06/08/23 21:29 630-20-612577.8 250 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 24 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92670271 Rusher's Tire Service Sample:MW-9 Lab ID:92670271001 Collected:06/01/23 16:14 Received:06/02/23 09:13 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV 1,1,2,2-Tetrachloroethane ND ug/L 06/08/23 21:29 79-34-512556.2 250 Tetrachloroethene ND ug/L 06/08/23 21:29 127-18-412573.0 250 Toluene 37800 ug/L 06/08/23 21:29 108-88-312559.8 250 1,2,3-Trichlorobenzene ND ug/L 06/08/23 21:29 87-61-6500202250 1,2,4-Trichlorobenzene ND ug/L 06/08/23 21:29 120-82-1500160250 1,1,1-Trichloroethane ND ug/L 06/08/23 21:29 71-55-612583.0 250 1,1,2-Trichloroethane ND ug/L 06/08/23 21:29 79-00-512581.2 250 Trichloroethene ND ug/L 06/08/23 21:29 79-01-612595.8 250 Trichlorofluoromethane ND ug/L 06/08/23 21:29 75-69-425074.5 250 1,2,3-Trichloropropane ND ug/L 06/08/23 21:29 96-18-412565.2 250 1,2,4-Trimethylbenzene 2220 ug/L 06/08/23 21:29 95-63-6125124250 1,3,5-Trimethylbenzene 429 ug/L 06/08/23 21:29 108-67-812583.0 250 Vinyl chloride ND ug/L 06/08/23 21:29 75-01-425096.5 250 m&p-Xylene 11300 ug/L 06/08/23 21:29 179601-23-1250177250 o-Xylene 6150 ug/L 06/08/23 21:29 95-47-612584.5 250 Surrogates 1,2-Dichloroethane-d4 (S)111 %06/08/23 21:29 17060-07-070-130 250 4-Bromofluorobenzene (S)100 %06/08/23 21:29 460-00-470-130 250 Toluene-d8 (S)100 %06/08/23 21:29 2037-26-570-130 250 Sample:MW-8 Lab ID:92670271002 Collected:06/01/23 17:18 Received:06/02/23 09:13 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene 6020 ug/L 06/08/23 21:46 71-43-210069.0 200 Bromobenzene ND ug/L 06/08/23 21:46 108-86-110058.0 200 Bromochloromethane ND ug/L 06/08/23 21:46 74-97-510093.6 200 Bromodichloromethane ND ug/L 06/08/23 21:46 75-27-410061.4 200 Bromoform ND ug/L 06/08/23 21:46 75-25-210068.2 200 Bromomethane ND ug/L 06/08/23 21:46 74-83-91000332200 n-Butylbenzene ND ug/L 06/08/23 21:46 104-51-810098.0 200 sec-Butylbenzene ND ug/L 06/08/23 21:46 135-98-810080.0 200 tert-Butylbenzene ND ug/L 06/08/23 21:46 98-06-610064.6 200 Carbon tetrachloride ND ug/L 06/08/23 21:46 56-23-510066.6 200 Chlorobenzene ND ug/L 06/08/23 21:46 108-90-710056.8 200 Chloroethane ND ug/L 06/08/23 21:46 75-00-3200130200 Chloroform ND ug/L 06/08/23 21:46 67-66-310086.0 200 Chloromethane ND ug/L 06/08/23 21:46 74-87-3200108200 2-Chlorotoluene ND ug/L 06/08/23 21:46 95-49-810064.2 200 4-Chlorotoluene ND ug/L 06/08/23 21:46 106-43-410064.8 200 1,2-Dibromo-3-chloropropane ND ug/L 06/08/23 21:46 96-12-820068.0 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 24 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92670271 Rusher's Tire Service Sample:MW-8 Lab ID:92670271002 Collected:06/01/23 17:18 Received:06/02/23 09:13 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Dibromochloromethane ND ug/L 06/08/23 21:46 124-48-110071.8 200 1,2-Dibromoethane (EDB)109 ug/L 06/08/23 21:46 106-93-410054.4 200 Dibromomethane ND ug/L 06/08/23 21:46 74-95-310078.8 200 1,2-Dichlorobenzene ND ug/L 06/08/23 21:46 95-50-110067.8 200 1,3-Dichlorobenzene ND ug/L 06/08/23 21:46 541-73-110068.0 200 1,4-Dichlorobenzene ND ug/L 06/08/23 21:46 106-46-710066.6 200 Dichlorodifluoromethane ND ug/L 06/08/23 21:46 75-71-8 IH10069.2 200 1,1-Dichloroethane ND ug/L 06/08/23 21:46 75-34-310073.4 200 1,2-Dichloroethane ND ug/L 06/08/23 21:46 107-06-210064.4 200 1,1-Dichloroethene ND ug/L 06/08/23 21:46 75-35-410069.6 200 cis-1,2-Dichloroethene ND ug/L 06/08/23 21:46 156-59-210076.8 200 trans-1,2-Dichloroethene ND ug/L 06/08/23 21:46 156-60-510079.2 200 1,2-Dichloropropane ND ug/L 06/08/23 21:46 78-87-510071.0 200 1,3-Dichloropropane ND ug/L 06/08/23 21:46 142-28-910056.8 200 2,2-Dichloropropane ND ug/L 06/08/23 21:46 594-20-710077.6 200 1,1-Dichloropropene ND ug/L 06/08/23 21:46 563-58-610085.4 200 cis-1,3-Dichloropropene ND ug/L 06/08/23 21:46 10061-01-510073.0 200 trans-1,3-Dichloropropene ND ug/L 06/08/23 21:46 10061-02-610072.6 200 Diisopropyl ether ND ug/L 06/08/23 21:46 108-20-310061.6 200 Ethylbenzene 2570 ug/L 06/08/23 21:46 100-41-410060.8 200 Hexachloro-1,3-butadiene ND ug/L 06/08/23 21:46 87-68-3400306200 Isopropylbenzene (Cumene)78.3J ug/L 06/08/23 21:46 98-82-810066.6 200 Methylene Chloride ND ug/L 06/08/23 21:46 75-09-2400390200 Methyl-tert-butyl ether ND ug/L 06/08/23 21:46 1634-04-410084.4 200 Naphthalene 476 ug/L 06/08/23 21:46 91-20-3400129200 n-Propylbenzene 212 ug/L 06/08/23 21:46 103-65-110068.0 200 Styrene ND ug/L 06/08/23 21:46 100-42-510058.4 200 1,1,1,2-Tetrachloroethane ND ug/L 06/08/23 21:46 630-20-610062.2 200 1,1,2,2-Tetrachloroethane ND ug/L 06/08/23 21:46 79-34-510045.0 200 Tetrachloroethene ND ug/L 06/08/23 21:46 127-18-410058.4 200 Toluene 25300 ug/L 06/08/23 21:46 108-88-310047.8 200 1,2,3-Trichlorobenzene ND ug/L 06/08/23 21:46 87-61-6400161200 1,2,4-Trichlorobenzene ND ug/L 06/08/23 21:46 120-82-1400128200 1,1,1-Trichloroethane ND ug/L 06/08/23 21:46 71-55-610066.4 200 1,1,2-Trichloroethane ND ug/L 06/08/23 21:46 79-00-510065.0 200 Trichloroethene ND ug/L 06/08/23 21:46 79-01-610076.6 200 Trichlorofluoromethane ND ug/L 06/08/23 21:46 75-69-420059.6 200 1,2,3-Trichloropropane ND ug/L 06/08/23 21:46 96-18-410052.2 200 1,2,4-Trimethylbenzene 1470 ug/L 06/08/23 21:46 95-63-610099.0 200 1,3,5-Trimethylbenzene 357 ug/L 06/08/23 21:46 108-67-810066.4 200 Vinyl chloride ND ug/L 06/08/23 21:46 75-01-420077.2 200 m&p-Xylene 8800 ug/L 06/08/23 21:46 179601-23-1200142200 o-Xylene 4270 ug/L 06/08/23 21:46 95-47-610067.6 200 Surrogates 1,2-Dichloroethane-d4 (S)111 %06/08/23 21:46 17060-07-070-130 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 24 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92670271 Rusher's Tire Service Sample:MW-8 Lab ID:92670271002 Collected:06/01/23 17:18 Received:06/02/23 09:13 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Surrogates 4-Bromofluorobenzene (S)100 %06/08/23 21:46 460-00-470-130 200 Toluene-d8 (S)99 %06/08/23 21:46 2037-26-570-130 200 Sample:Field Duplicate Lab ID:92670271003 Collected:Received:06/02/23 09:13 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene 586 ug/L 06/09/23 22:13 71-43-210069.0 200 Bromobenzene ND ug/L 06/09/23 22:13 108-86-110058.0 200 Bromochloromethane ND ug/L 06/09/23 22:13 74-97-510093.6 200 Bromodichloromethane ND ug/L 06/09/23 22:13 75-27-410061.4 200 Bromoform ND ug/L 06/09/23 22:13 75-25-210068.2 200 Bromomethane ND ug/L 06/09/23 22:13 74-83-91000332200 n-Butylbenzene ND ug/L 06/09/23 22:13 104-51-810098.0 200 sec-Butylbenzene ND ug/L 06/09/23 22:13 135-98-810080.0 200 tert-Butylbenzene ND ug/L 06/09/23 22:13 98-06-610064.6 200 Carbon tetrachloride ND ug/L 06/09/23 22:13 56-23-510066.6 200 Chlorobenzene ND ug/L 06/09/23 22:13 108-90-710056.8 200 Chloroethane ND ug/L 06/09/23 22:13 75-00-3200130200 Chloroform ND ug/L 06/09/23 22:13 67-66-310086.0 200 Chloromethane ND ug/L 06/09/23 22:13 74-87-3200108200 2-Chlorotoluene ND ug/L 06/09/23 22:13 95-49-810064.2 200 4-Chlorotoluene ND ug/L 06/09/23 22:13 106-43-410064.8 200 1,2-Dibromo-3-chloropropane ND ug/L 06/09/23 22:13 96-12-820068.0 200 Dibromochloromethane ND ug/L 06/09/23 22:13 124-48-110071.8 200 1,2-Dibromoethane (EDB)ND ug/L 06/09/23 22:13 106-93-410054.4 200 Dibromomethane ND ug/L 06/09/23 22:13 74-95-310078.8 200 1,2-Dichlorobenzene ND ug/L 06/09/23 22:13 95-50-110067.8 200 1,3-Dichlorobenzene ND ug/L 06/09/23 22:13 541-73-110068.0 200 1,4-Dichlorobenzene ND ug/L 06/09/23 22:13 106-46-710066.6 200 Dichlorodifluoromethane ND ug/L 06/09/23 22:13 75-71-8 IH10069.2 200 1,1-Dichloroethane ND ug/L 06/09/23 22:13 75-34-310073.4 200 1,2-Dichloroethane ND ug/L 06/09/23 22:13 107-06-210064.4 200 1,1-Dichloroethene ND ug/L 06/09/23 22:13 75-35-410069.6 200 cis-1,2-Dichloroethene ND ug/L 06/09/23 22:13 156-59-210076.8 200 trans-1,2-Dichloroethene ND ug/L 06/09/23 22:13 156-60-510079.2 200 1,2-Dichloropropane ND ug/L 06/09/23 22:13 78-87-510071.0 200 1,3-Dichloropropane ND ug/L 06/09/23 22:13 142-28-910056.8 200 2,2-Dichloropropane ND ug/L 06/09/23 22:13 594-20-710077.6 200 1,1-Dichloropropene ND ug/L 06/09/23 22:13 563-58-610085.4 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 24 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92670271 Rusher's Tire Service Sample:Field Duplicate Lab ID:92670271003 Collected:Received:06/02/23 09:13 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV cis-1,3-Dichloropropene ND ug/L 06/09/23 22:13 10061-01-510073.0 200 trans-1,3-Dichloropropene ND ug/L 06/09/23 22:13 10061-02-610072.6 200 Diisopropyl ether ND ug/L 06/09/23 22:13 108-20-310061.6 200 Ethylbenzene 2800 ug/L 06/09/23 22:13 100-41-410060.8 200 Hexachloro-1,3-butadiene ND ug/L 06/09/23 22:13 87-68-3400306200 Isopropylbenzene (Cumene)95.5J ug/L 06/09/23 22:13 98-82-810066.6 200 Methylene Chloride ND ug/L 06/09/23 22:13 75-09-2400390200 Methyl-tert-butyl ether ND ug/L 06/09/23 22:13 1634-04-410084.4 200 Naphthalene 415 ug/L 06/09/23 22:13 91-20-3400129200 n-Propylbenzene 247 ug/L 06/09/23 22:13 103-65-110068.0 200 Styrene ND ug/L 06/09/23 22:13 100-42-510058.4 200 1,1,1,2-Tetrachloroethane ND ug/L 06/09/23 22:13 630-20-610062.2 200 1,1,2,2-Tetrachloroethane ND ug/L 06/09/23 22:13 79-34-510045.0 200 Tetrachloroethene ND ug/L 06/09/23 22:13 127-18-410058.4 200 Toluene 31400 ug/L 06/09/23 22:13 108-88-310047.8 200 1,2,3-Trichlorobenzene ND ug/L 06/09/23 22:13 87-61-6400161200 1,2,4-Trichlorobenzene ND ug/L 06/09/23 22:13 120-82-1400128200 1,1,1-Trichloroethane ND ug/L 06/09/23 22:13 71-55-610066.4 200 1,1,2-Trichloroethane ND ug/L 06/09/23 22:13 79-00-510065.0 200 Trichloroethene ND ug/L 06/09/23 22:13 79-01-610076.6 200 Trichlorofluoromethane ND ug/L 06/09/23 22:13 75-69-420059.6 200 1,2,3-Trichloropropane ND ug/L 06/09/23 22:13 96-18-410052.2 200 1,2,4-Trimethylbenzene 2040 ug/L 06/09/23 22:13 95-63-610099.0 200 1,3,5-Trimethylbenzene 400 ug/L 06/09/23 22:13 108-67-810066.4 200 Vinyl chloride ND ug/L 06/09/23 22:13 75-01-420077.2 200 m&p-Xylene 10000 ug/L 06/09/23 22:13 179601-23-1200142200 o-Xylene 5480 ug/L 06/09/23 22:13 95-47-610067.6 200 Surrogates 1,2-Dichloroethane-d4 (S)110 %06/09/23 22:13 17060-07-070-130 200 4-Bromofluorobenzene (S)97 %06/09/23 22:13 460-00-470-130 200 Toluene-d8 (S)100 %06/09/23 22:13 2037-26-570-130 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 24 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92670271 Rusher's Tire Service Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 778844 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92670271003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4039903 Associated Lab Samples:92670271003 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L ND 0.50 06/09/23 15:570.31 1,1,1-Trichloroethane ug/L ND 0.50 06/09/23 15:570.33 1,1,2,2-Tetrachloroethane ug/L ND 0.50 06/09/23 15:570.22 1,1,2-Trichloroethane ug/L ND 0.50 06/09/23 15:570.32 1,1-Dichloroethane ug/L ND 0.50 06/09/23 15:570.37 1,1-Dichloroethene ug/L ND 0.50 06/09/23 15:570.35 1,1-Dichloropropene ug/L ND 0.50 06/09/23 15:570.43 1,2,3-Trichlorobenzene ug/L ND 2.0 06/09/23 15:570.81 1,2,3-Trichloropropane ug/L ND 0.50 06/09/23 15:570.26 1,2,4-Trichlorobenzene ug/L ND 2.0 06/09/23 15:570.64 1,2,4-Trimethylbenzene ug/L ND 0.50 06/09/23 15:570.50 1,2-Dibromo-3-chloropropane ug/L ND 1.0 06/09/23 15:570.34 1,2-Dibromoethane (EDB)ug/L ND 0.50 06/09/23 15:570.27 1,2-Dichlorobenzene ug/L ND 0.50 06/09/23 15:570.34 1,2-Dichloroethane ug/L ND 0.50 06/09/23 15:570.32 1,2-Dichloropropane ug/L ND 0.50 06/09/23 15:570.36 1,3,5-Trimethylbenzene ug/L ND 0.50 06/09/23 15:570.33 1,3-Dichlorobenzene ug/L ND 0.50 06/09/23 15:570.34 1,3-Dichloropropane ug/L ND 0.50 06/09/23 15:570.28 1,4-Dichlorobenzene ug/L ND 0.50 06/09/23 15:570.33 2,2-Dichloropropane ug/L ND 0.50 06/09/23 15:570.39 2-Chlorotoluene ug/L ND 0.50 06/09/23 15:570.32 4-Chlorotoluene ug/L ND 0.50 06/09/23 15:570.32 Benzene ug/L ND 0.50 06/09/23 15:570.34 Bromobenzene ug/L ND 0.50 06/09/23 15:570.29 Bromochloromethane ug/L ND 0.50 06/09/23 15:570.47 Bromodichloromethane ug/L ND 0.50 06/09/23 15:570.31 Bromoform ug/L ND 0.50 06/09/23 15:570.34 Bromomethane ug/L ND 5.0 06/09/23 15:571.7 Carbon tetrachloride ug/L ND 0.50 06/09/23 15:570.33 Chlorobenzene ug/L ND 0.50 06/09/23 15:570.28 Chloroethane ug/L ND 1.0 06/09/23 15:570.65 Chloroform ug/L ND 0.50 06/09/23 15:570.43 Chloromethane ug/L ND 1.0 06/09/23 15:570.54 cis-1,2-Dichloroethene ug/L ND 0.50 06/09/23 15:570.38 cis-1,3-Dichloropropene ug/L ND 0.50 06/09/23 15:570.36 Dibromochloromethane ug/L ND 0.50 06/09/23 15:570.36 Dibromomethane ug/L ND 0.50 06/09/23 15:570.39 Dichlorodifluoromethane ug/L ND 0.50 IH06/09/23 15:570.35 Diisopropyl ether ug/L ND 0.50 06/09/23 15:570.31 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 24 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92670271 Rusher's Tire Service Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4039903 Associated Lab Samples:92670271003 Matrix:Water AnalyzedMDL Ethylbenzene ug/L ND 0.50 06/09/23 15:570.30 Hexachloro-1,3-butadiene ug/L ND 2.0 06/09/23 15:571.5 Isopropylbenzene (Cumene)ug/L ND 0.50 06/09/23 15:570.33 m&p-Xylene ug/L ND 1.0 06/09/23 15:570.71 Methyl-tert-butyl ether ug/L ND 0.50 06/09/23 15:570.42 Methylene Chloride ug/L ND 2.0 06/09/23 15:572.0 n-Butylbenzene ug/L ND 0.50 06/09/23 15:570.49 n-Propylbenzene ug/L ND 0.50 06/09/23 15:570.34 Naphthalene ug/L ND 2.0 06/09/23 15:570.64 o-Xylene ug/L ND 0.50 06/09/23 15:570.34 sec-Butylbenzene ug/L ND 0.50 06/09/23 15:570.40 Styrene ug/L ND 0.50 06/09/23 15:570.29 tert-Butylbenzene ug/L ND 0.50 06/09/23 15:570.32 Tetrachloroethene ug/L ND 0.50 06/09/23 15:570.29 Toluene ug/L ND 0.50 06/09/23 15:570.24 trans-1,2-Dichloroethene ug/L ND 0.50 06/09/23 15:570.40 trans-1,3-Dichloropropene ug/L ND 0.50 06/09/23 15:570.36 Trichloroethene ug/L ND 0.50 06/09/23 15:570.38 Trichlorofluoromethane ug/L ND 1.0 06/09/23 15:570.30 Vinyl chloride ug/L ND 1.0 06/09/23 15:570.39 1,2-Dichloroethane-d4 (S)%111 70-130 06/09/23 15:57 4-Bromofluorobenzene (S)%98 70-130 06/09/23 15:57 Toluene-d8 (S)%99 70-130 06/09/23 15:57 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4039904LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 20.820 104 60-140 1,1,1-Trichloroethane ug/L 20.320 101 60-140 1,1,2,2-Tetrachloroethane ug/L 22.420 112 60-140 1,1,2-Trichloroethane ug/L 22.320 111 60-140 1,1-Dichloroethane ug/L 22.120 110 60-140 1,1-Dichloroethene ug/L 21.020 105 60-140 1,1-Dichloropropene ug/L 21.520 108 60-140 1,2,3-Trichlorobenzene ug/L 21.020 105 60-140 1,2,3-Trichloropropane ug/L 22.420 112 60-140 1,2,4-Trichlorobenzene ug/L 20.820 104 60-140 1,2,4-Trimethylbenzene ug/L 22.320 112 60-140 1,2-Dibromo-3-chloropropane ug/L 20.820 104 60-140 1,2-Dibromoethane (EDB)ug/L 22.820 114 60-140 1,2-Dichlorobenzene ug/L 21.620 108 60-140 1,2-Dichloroethane ug/L 23.920 120 60-140 1,2-Dichloropropane ug/L 22.420 112 60-140 1,3,5-Trimethylbenzene ug/L 21.320 106 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 24 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92670271 Rusher's Tire Service Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4039904LABORATORY CONTROL SAMPLE: LCSSpike 1,3-Dichlorobenzene ug/L 21.320 107 60-140 1,3-Dichloropropane ug/L 22.020 110 60-140 1,4-Dichlorobenzene ug/L 20.220 101 60-140 2,2-Dichloropropane ug/L 20.720 103 60-140 2-Chlorotoluene ug/L 20.920 105 60-140 4-Chlorotoluene ug/L 21.820 109 60-140 Benzene ug/L 20.620 103 60-140 Bromobenzene ug/L 20.520 102 60-140 Bromochloromethane ug/L 21.820 109 60-140 Bromodichloromethane ug/L 21.120 105 60-140 Bromoform ug/L 19.220 96 60-140 Bromomethane ug/L 17.120 86 60-140 Carbon tetrachloride ug/L 18.620 93 60-140 Chlorobenzene ug/L 20.520 102 60-140 Chloroethane ug/L 19.420 97 60-140 Chloroform ug/L 21.820 109 60-140 Chloromethane ug/L 19.320 96 60-140 cis-1,2-Dichloroethene ug/L 22.520 112 60-140 cis-1,3-Dichloropropene ug/L 22.620 113 60-140 Dibromochloromethane ug/L 21.520 108 60-140 Dibromomethane ug/L 22.120 110 60-140 Dichlorodifluoromethane ug/L 16.6 IH208360-140 Diisopropyl ether ug/L 23.620 118 60-140 Ethylbenzene ug/L 20.220 101 60-140 Hexachloro-1,3-butadiene ug/L 18.220 91 60-140 Isopropylbenzene (Cumene)ug/L 20.520 102 60-140 m&p-Xylene ug/L 41.040 102 60-140 Methyl-tert-butyl ether ug/L 22.520 113 60-140 Methylene Chloride ug/L 22.620 113 60-140 n-Butylbenzene ug/L 21.220 106 60-140 n-Propylbenzene ug/L 20.220 101 60-140 Naphthalene ug/L 23.120 116 60-140 o-Xylene ug/L 21.020 105 60-140 sec-Butylbenzene ug/L 20.220 101 60-140 Styrene ug/L 22.620 113 60-140 tert-Butylbenzene ug/L 16.820 84 60-140 Tetrachloroethene ug/L 18.020 90 60-140 Toluene ug/L 19.720 99 60-140 trans-1,2-Dichloroethene ug/L 22.520 112 60-140 trans-1,3-Dichloropropene ug/L 22.520 113 60-140 Trichloroethene ug/L 19.420 97 60-140 Trichlorofluoromethane ug/L 17.220 86 60-140 Vinyl chloride ug/L 16.120 80 60-140 1,2-Dichloroethane-d4 (S)%112 70-130 4-Bromofluorobenzene (S)%102 70-130 Toluene-d8 (S)%100 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 24 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92670271 Rusher's Tire Service Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4043368MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92670243003 4043369 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 123 60-140118 4 3020ND24.6 23.6 1,1,1-Trichloroethane ug/L 20 139 60-140129 8 3020ND27.8 25.7 1,1,2,2-Tetrachloroethane ug/L 20 128 60-140119 7 3020ND25.5 23.8 1,1,2-Trichloroethane ug/L 20 126 60-140117 7 3020ND25.2 23.4 1,1-Dichloroethane ug/L 20 139 60-140130 6 3020ND27.7 26.0 1,1-Dichloroethene ug/L M12015460-140146 5 3020ND30.7 29.1 1,1-Dichloropropene ug/L M12014760-140141 4 3020ND29.3 28.3 1,2,3-Trichlorobenzene ug/L 20 113 60-140112 1 3020ND22.6 22.4 1,2,3-Trichloropropane ug/L 20 117 60-140111 6 3020ND23.4 22.2 1,2,4-Trichlorobenzene ug/L 20 113 60-140112 1 3020ND22.5 22.4 1,2,4-Trimethylbenzene ug/L 20 128 60-140125 2 3020ND25.6 25.0 1,2-Dibromo-3- chloropropane ug/L 20 111 60-140109 2 3020ND22.3 21.8 1,2-Dibromoethane (EDB)ug/L 20 129 60-140121 7 3020ND25.9 24.2 1,2-Dichlorobenzene ug/L 20 120 60-140117 2 3020ND24.0 23.5 1,2-Dichloroethane ug/L 20 139 60-140128 9 3020ND27.9 25.5 1,2-Dichloropropane ug/L 20 135 60-140126 7 3020ND27.0 25.3 1,3,5-Trimethylbenzene ug/L 20 124 60-140123 1 3020ND24.9 24.6 1,3-Dichlorobenzene ug/L 20 118 60-140116 1 3020ND23.5 23.2 1,3-Dichloropropane ug/L 20 126 60-140118 6 3020ND25.1 23.6 1,4-Dichlorobenzene ug/L 20 115 60-140113 2 3020ND23.0 22.6 2,2-Dichloropropane ug/L 20 132 60-140125 6 3020ND26.5 24.9 2-Chlorotoluene ug/L 20 123 60-140122 1 3020ND24.7 24.3 4-Chlorotoluene ug/L 20 125 60-140124 0 3020ND25.0 24.9 Benzene ug/L 20 130 60-140122 6 3020ND26.0 24.3 Bromobenzene ug/L 20 117 60-140114 3 3020ND23.4 22.8 Bromochloromethane ug/L 20 125 60-140117 7 3020ND25.1 23.5 Bromodichloromethane ug/L 20 124 60-140116 7 3020ND24.8 23.2 Bromoform ug/L 20 106 60-140101 5 3020ND21.3 20.2 Bromomethane ug/L 20 81 60-14091 12 3020ND16.1 18.3 Carbon tetrachloride ug/L 20 132 60-140127 4 3020ND26.3 25.3 Chlorobenzene ug/L 20 122 60-140118 3 3020ND24.4 23.6 Chloroethane ug/L 20 134 60-140126 6 3020ND26.8 25.2 Chloroform ug/L 20 133 60-140124 7 3020ND26.6 24.8 Chloromethane ug/L 20 124 60-140118 5 3020ND24.7 23.6 cis-1,2-Dichloroethene ug/L 20 140 60-140128 9 3020ND28.1 25.7 cis-1,3-Dichloropropene ug/L 20 126 60-140117 7 3020ND25.2 23.4 Dibromochloromethane ug/L 20 125 60-140117 7 3020ND25.1 23.3 Dibromomethane ug/L 20 124 60-140118 5 3020ND24.8 23.5 Dichlorodifluoromethane ug/L IH,M12015760-140153 3 3020ND31.4 30.6 Diisopropyl ether ug/L 20 139 60-140128 8 3020ND27.8 25.6 Ethylbenzene ug/L 20 123 60-140120 2 3020ND24.5 23.9 Hexachloro-1,3-butadiene ug/L 20 111 60-140114 3 3020ND22.1 22.8 Isopropylbenzene(Cumene)ug/L 20 127 60-140122 4 3020ND25.4 24.5 m&p-Xylene ug/L 40 125 60-140121 4 3040ND50.0 48.3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 24 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92670271 Rusher's Tire Service Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4043368MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92670243003 4043369 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Methyl-tert-butyl ether ug/L 20 126 60-140117 8 3020ND25.3 23.4 Methylene Chloride ug/L 20 135 60-140124 9 3020ND27.1 24.8 n-Butylbenzene ug/L 20 125 60-140128 3 3020ND24.9 25.6 n-Propylbenzene ug/L 20 122 60-140122 0 3020ND24.4 24.4 Naphthalene ug/L 20 121 60-140121 0 3020ND24.3 24.2 o-Xylene ug/L 20 122 60-140118 3 3020ND24.4 23.6 sec-Butylbenzene ug/L 20 123 60-140123 0 3020ND24.6 24.5 Styrene ug/L 20 129 60-140123 5 3020ND25.8 24.6 tert-Butylbenzene ug/L 20 101 60-14098 3 3020ND20.3 19.6 Tetrachloroethene ug/L 20 115 60-140112 2 3020ND23.0 22.4 Toluene ug/L 20 121 60-140114 5 3020ND24.1 22.8 trans-1,2-Dichloroethene ug/L M12014560-140138 5 3020ND29.1 27.7 trans-1,3-Dichloropropene ug/L 20 125 60-140117 7 3020ND25.1 23.3 Trichloroethene ug/L 20 124 60-140119 5 3020ND24.9 23.7 Trichlorofluoromethane ug/L 20 139 60-140136 2 3020ND27.8 27.2 Vinyl chloride ug/L 20 122 60-140116 5 3020ND24.3 23.2 1,2-Dichloroethane-d4 (S)%111 70-130109 4-Bromofluorobenzene (S)%103 70-130102 Toluene-d8 (S)%99 70-13098 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 24 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92670271 Rusher's Tire Service Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 779336 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92670271001, 92670271002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4042630 Associated Lab Samples:92670271001, 92670271002 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L ND 0.50 06/08/23 15:020.31 1,1,1-Trichloroethane ug/L ND 0.50 06/08/23 15:020.33 1,1,2,2-Tetrachloroethane ug/L ND 0.50 06/08/23 15:020.22 1,1,2-Trichloroethane ug/L ND 0.50 06/08/23 15:020.32 1,1-Dichloroethane ug/L ND 0.50 06/08/23 15:020.37 1,1-Dichloroethene ug/L ND 0.50 06/08/23 15:020.35 1,1-Dichloropropene ug/L ND 0.50 06/08/23 15:020.43 1,2,3-Trichlorobenzene ug/L ND 2.0 06/08/23 15:020.81 1,2,3-Trichloropropane ug/L ND 0.50 06/08/23 15:020.26 1,2,4-Trichlorobenzene ug/L ND 2.0 06/08/23 15:020.64 1,2,4-Trimethylbenzene ug/L ND 0.50 06/08/23 15:020.50 1,2-Dibromo-3-chloropropane ug/L ND 1.0 06/08/23 15:020.34 1,2-Dibromoethane (EDB)ug/L ND 0.50 06/08/23 15:020.27 1,2-Dichlorobenzene ug/L ND 0.50 06/08/23 15:020.34 1,2-Dichloroethane ug/L ND 0.50 06/08/23 15:020.32 1,2-Dichloropropane ug/L ND 0.50 06/08/23 15:020.36 1,3,5-Trimethylbenzene ug/L ND 0.50 06/08/23 15:020.33 1,3-Dichlorobenzene ug/L ND 0.50 06/08/23 15:020.34 1,3-Dichloropropane ug/L ND 0.50 06/08/23 15:020.28 1,4-Dichlorobenzene ug/L ND 0.50 06/08/23 15:020.33 2,2-Dichloropropane ug/L ND 0.50 06/08/23 15:020.39 2-Chlorotoluene ug/L ND 0.50 06/08/23 15:020.32 4-Chlorotoluene ug/L ND 0.50 06/08/23 15:020.32 Benzene ug/L ND 0.50 06/08/23 15:020.34 Bromobenzene ug/L ND 0.50 06/08/23 15:020.29 Bromochloromethane ug/L ND 0.50 06/08/23 15:020.47 Bromodichloromethane ug/L ND 0.50 06/08/23 15:020.31 Bromoform ug/L ND 0.50 06/08/23 15:020.34 Bromomethane ug/L ND 5.0 06/08/23 15:021.7 Carbon tetrachloride ug/L ND 0.50 06/08/23 15:020.33 Chlorobenzene ug/L ND 0.50 06/08/23 15:020.28 Chloroethane ug/L ND 1.0 06/08/23 15:020.65 Chloroform ug/L ND 0.50 06/08/23 15:020.43 Chloromethane ug/L ND 1.0 06/08/23 15:020.54 cis-1,2-Dichloroethene ug/L ND 0.50 06/08/23 15:020.38 cis-1,3-Dichloropropene ug/L ND 0.50 06/08/23 15:020.36 Dibromochloromethane ug/L ND 0.50 06/08/23 15:020.36 Dibromomethane ug/L ND 0.50 06/08/23 15:020.39 Dichlorodifluoromethane ug/L ND 0.50 IH06/08/23 15:020.35 Diisopropyl ether ug/L ND 0.50 06/08/23 15:020.31 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 24 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92670271 Rusher's Tire Service Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4042630 Associated Lab Samples:92670271001, 92670271002 Matrix:Water AnalyzedMDL Ethylbenzene ug/L ND 0.50 06/08/23 15:020.30 Hexachloro-1,3-butadiene ug/L ND 2.0 06/08/23 15:021.5 Isopropylbenzene (Cumene)ug/L ND 0.50 06/08/23 15:020.33 m&p-Xylene ug/L ND 1.0 06/08/23 15:020.71 Methyl-tert-butyl ether ug/L ND 0.50 06/08/23 15:020.42 Methylene Chloride ug/L ND 2.0 06/08/23 15:022.0 n-Butylbenzene ug/L ND 0.50 06/08/23 15:020.49 n-Propylbenzene ug/L ND 0.50 06/08/23 15:020.34 Naphthalene ug/L ND 2.0 06/08/23 15:020.64 o-Xylene ug/L ND 0.50 06/08/23 15:020.34 sec-Butylbenzene ug/L ND 0.50 06/08/23 15:020.40 Styrene ug/L ND 0.50 06/08/23 15:020.29 tert-Butylbenzene ug/L ND 0.50 06/08/23 15:020.32 Tetrachloroethene ug/L ND 0.50 06/08/23 15:020.29 Toluene ug/L ND 0.50 06/08/23 15:020.24 trans-1,2-Dichloroethene ug/L ND 0.50 06/08/23 15:020.40 trans-1,3-Dichloropropene ug/L ND 0.50 06/08/23 15:020.36 Trichloroethene ug/L ND 0.50 06/08/23 15:020.38 Trichlorofluoromethane ug/L ND 1.0 06/08/23 15:020.30 Vinyl chloride ug/L ND 1.0 06/08/23 15:020.39 1,2-Dichloroethane-d4 (S)%109 70-130 06/08/23 15:02 4-Bromofluorobenzene (S)%99 70-130 06/08/23 15:02 Toluene-d8 (S)%99 70-130 06/08/23 15:02 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4042631LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 17.020 85 60-140 1,1,1-Trichloroethane ug/L 17.720 89 60-140 1,1,2,2-Tetrachloroethane ug/L 17.620 88 60-140 1,1,2-Trichloroethane ug/L 17.820 89 60-140 1,1-Dichloroethane ug/L 18.120 90 60-140 1,1-Dichloroethene ug/L 19.220 96 60-140 1,1-Dichloropropene ug/L 19.220 96 60-140 1,2,3-Trichlorobenzene ug/L 19.320 97 60-140 1,2,3-Trichloropropane ug/L 17.720 88 60-140 1,2,4-Trichlorobenzene ug/L 18.920 94 60-140 1,2,4-Trimethylbenzene ug/L 18.820 94 60-140 1,2-Dibromo-3-chloropropane ug/L 17.020 85 60-140 1,2-Dibromoethane (EDB)ug/L 18.620 93 60-140 1,2-Dichlorobenzene ug/L 18.120 91 60-140 1,2-Dichloroethane ug/L 18.720 93 60-140 1,2-Dichloropropane ug/L 18.020 90 60-140 1,3,5-Trimethylbenzene ug/L 18.720 93 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 24 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92670271 Rusher's Tire Service Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4042631LABORATORY CONTROL SAMPLE: LCSSpike 1,3-Dichlorobenzene ug/L 17.820 89 60-140 1,3-Dichloropropane ug/L 17.720 88 60-140 1,4-Dichlorobenzene ug/L 17.720 88 60-140 2,2-Dichloropropane ug/L 18.220 91 60-140 2-Chlorotoluene ug/L 17.620 88 60-140 4-Chlorotoluene ug/L 18.420 92 60-140 Benzene ug/L 17.320 87 60-140 Bromobenzene ug/L 17.220 86 60-140 Bromochloromethane ug/L 17.620 88 60-140 Bromodichloromethane ug/L 16.920 84 60-140 Bromoform ug/L 15.020 75 60-140 Bromomethane ug/L 12.420 62 60-140 Carbon tetrachloride ug/L 17.020 85 60-140 Chlorobenzene ug/L 17.220 86 60-140 Chloroethane ug/L 17.520 88 60-140 Chloroform ug/L 17.220 86 60-140 Chloromethane ug/L 17.120 86 60-140 cis-1,2-Dichloroethene ug/L 18.520 92 60-140 cis-1,3-Dichloropropene ug/L 17.820 89 60-140 Dibromochloromethane ug/L 16.720 84 60-140 Dibromomethane ug/L 18.020 90 60-140 Dichlorodifluoromethane ug/L 23.3 IH2011760-140 Diisopropyl ether ug/L 18.320 91 60-140 Ethylbenzene ug/L 16.920 84 60-140 Hexachloro-1,3-butadiene ug/L 18.420 92 60-140 Isopropylbenzene (Cumene)ug/L 17.820 89 60-140 m&p-Xylene ug/L 34.840 87 60-140 Methyl-tert-butyl ether ug/L 17.920 89 60-140 Methylene Chloride ug/L 17.420 87 60-140 n-Butylbenzene ug/L 19.520 98 60-140 n-Propylbenzene ug/L 17.720 89 60-140 Naphthalene ug/L 20.820 104 60-140 o-Xylene ug/L 17.720 88 60-140 sec-Butylbenzene ug/L 18.420 92 60-140 Styrene ug/L 18.520 92 60-140 tert-Butylbenzene ug/L 14.820 74 60-140 Tetrachloroethene ug/L 16.020 80 60-140 Toluene ug/L 16.420 82 60-140 trans-1,2-Dichloroethene ug/L 19.020 95 60-140 trans-1,3-Dichloropropene ug/L 17.420 87 60-140 Trichloroethene ug/L 17.420 87 60-140 Trichlorofluoromethane ug/L 17.820 89 60-140 Vinyl chloride ug/L 16.020 80 60-140 1,2-Dichloroethane-d4 (S)%105 70-130 4-Bromofluorobenzene (S)%100 70-130 Toluene-d8 (S)%99 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 24 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92670271 Rusher's Tire Service Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4042632MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92670482001 4042633 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 131 60-140131 0 3020ND26.2 26.2 1,1,1-Trichloroethane ug/L M12014760-140145 1 3020ND29.4 28.9 1,1,2,2-Tetrachloroethane ug/L 20 133 60-140135 1 3020ND26.6 26.9 1,1,2-Trichloroethane ug/L 20 132 60-140131 0 3020ND26.3 26.2 1,1-Dichloroethane ug/L M12014860-140146 1 3020ND29.6 29.2 1,1-Dichloroethene ug/L M12016460-140160 2 3020ND32.8 32.0 1,1-Dichloropropene ug/L M12015760-140156 1 3020ND31.4 31.3 1,2,3-Trichlorobenzene ug/L 20 118 60-140123 4 3020ND23.5 24.5 1,2,3-Trichloropropane ug/L 20 131 60-140128 2 3020ND26.2 25.6 1,2,4-Trichlorobenzene ug/L 20 117 60-140121 4 3020ND23.3 24.2 1,2,4-Trimethylbenzene ug/L 20 136 60-140139 2 3020ND27.1 27.8 1,2-Dibromo-3- chloropropane ug/L 20 118 60-140123 4 3020ND23.7 24.6 1,2-Dibromoethane (EDB)ug/L 20 137 60-140138 1 3020ND27.3 27.7 1,2-Dichlorobenzene ug/L 20 126 60-140132 4 3020ND25.2 26.3 1,2-Dichloroethane ug/L M12014760-140145 1 3020ND29.4 28.9 1,2-Dichloropropane ug/L M12014460-140142 1 3020ND28.8 28.4 1,3,5-Trimethylbenzene ug/L 20 133 60-140136 3 3020ND26.5 27.2 1,3-Dichlorobenzene ug/L 20 127 60-140128 1 3020ND25.3 25.5 1,3-Dichloropropane ug/L 20 135 60-140134 0 3020ND26.9 26.8 1,4-Dichlorobenzene ug/L 20 122 60-140124 2 3020ND24.3 24.9 2,2-Dichloropropane ug/L 20 136 60-140134 1 3020ND27.2 26.9 2-Chlorotoluene ug/L 20 131 60-140134 2 3020ND26.3 26.9 4-Chlorotoluene ug/L 20 133 60-140136 2 3020ND26.7 27.1 Benzene ug/L 20 137 60-140137 0 3020ND27.3 27.3 Bromobenzene ug/L 20 124 60-140126 2 3020ND24.9 25.3 Bromochloromethane ug/L 20 133 60-140133 0 3020ND26.6 26.6 Bromodichloromethane ug/L 20 132 60-140130 2 3020ND26.4 26.0 Bromoform ug/L 20 112 60-140111 1 3020ND22.3 22.1 Bromomethane ug/L 20 117 60-140119 1 3020ND23.5 23.8 Carbon tetrachloride ug/L 20 138 60-140139 1 3020ND27.6 27.7 Chlorobenzene ug/L 20 128 60-140130 1 3020ND25.7 26.0 Chloroethane ug/L M12014560-140146 0 3020ND29.1 29.1 Chloroform ug/L 20 140 60-140137 2 3020ND28.0 27.4 Chloromethane ug/L 20 131 60-140138 5 3020ND26.2 27.6 cis-1,2-Dichloroethene ug/L M12014960-140148 1 3020ND29.8 29.5 cis-1,3-Dichloropropene ug/L 20 131 60-140129 2 3020ND26.2 25.8 Dibromochloromethane ug/L 20 132 60-140131 0 3020ND26.3 26.2 Dibromomethane ug/L 20 131 60-140130 1 3020ND26.1 25.9 Dichlorodifluoromethane ug/L IH,M12019660-140194 1 3020ND39.2 38.9 Diisopropyl ether ug/L M12014860-140146 1 3020ND29.5 29.2 Ethylbenzene ug/L 20 132 60-140132 0 3020ND26.5 26.5 Hexachloro-1,3-butadiene ug/L 20 122 60-140120 2 3020ND24.5 24.0 Isopropylbenzene(Cumene)ug/L 20 136 60-140136 1 3020ND27.1 27.3 m&p-Xylene ug/L 40 134 60-140133 1 3040ND53.6 53.1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 24 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92670271 Rusher's Tire Service Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4042632MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92670482001 4042633 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Methyl-tert-butyl ether ug/L 20 136 60-140134 1 3020ND27.3 26.9 Methylene Chloride ug/L 20 140 60-140140 1 3020ND28.1 27.9 n-Butylbenzene ug/L 20 138 60-140137 1 3020ND27.6 27.4 n-Propylbenzene ug/L 20 131 60-140133 2 3020ND26.2 26.7 Naphthalene ug/L 20 128 60-140139 9 3020ND25.5 27.8 o-Xylene ug/L 20 130 60-140133 2 3020ND26.1 26.6 sec-Butylbenzene ug/L 20 134 60-140136 2 3020ND26.7 27.1 Styrene ug/L 20 139 60-140138 1 3020ND27.8 27.6 tert-Butylbenzene ug/L 20 108 60-140111 2 3020ND21.7 22.2 Tetrachloroethene ug/L 20 123 60-140122 1 3020ND24.6 24.4 Toluene ug/L 20 128 60-140128 0 3020ND25.7 25.6 trans-1,2-Dichloroethene ug/L M12015460-140152 1 3020ND30.8 30.5 trans-1,3-Dichloropropene ug/L 20 132 60-140130 2 3020ND26.5 26.0 Trichloroethene ug/L 20 130 60-140131 0 3020ND26.0 26.2 Trichlorofluoromethane ug/L M12015260-140150 1 3020ND30.4 29.9 Vinyl chloride ug/L 20 132 60-140134 1 3020ND26.5 26.7 1,2-Dichloroethane-d4 (S)%113 70-130111 4-Bromofluorobenzene (S)%102 70-130102 Toluene-d8 (S)%99 70-13098 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 24 #=QL# QUALIFIERS Pace Project No.: Project: 92670271 Rusher's Tire Service DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS This analyte exceeded secondary source verification criteria high for the initial calibration. The reported results should be considered an estimated value.IH Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 24 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92670271 Rusher's Tire Service Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92670271001 779336MW-9 SM 6200B 92670271002 779336MW-8 SM 6200B 92670271003 778844Field Duplicate SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/12/2023 12:42 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 24 Page 22 of 24 Page 23 of 24 Page 24 of 24 ESP Corporate Office 3475 Lakemont Boulevard Fort Mill, SC 29708 803.802.2440 Mailing Address: P.O. 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