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HomeMy WebLinkAbout25046 Harrelson Ford Brownfields Assessment Report 20220322 Via Email March 22, 2022 NCDEQ – Division of Waste Management Brownfields Program 1646 Mail Service Center Raleigh, Noth Carolina 27699-1646 Attn: Mr. Bill Schmithorst Re: Brownfields Assessment Report Harrelson Ford Charlotte, North Carolina Brownfields Project No. 25046-21-060 H&H Project No. ACO-002 Dear Mr. Schmithorst: On behalf of TAC Harrelson Ford, LLC, enclosed please find a copy of the Brownfields Assessment Report documenting recent sampling activities completed at the Harrelson Ford Brownfields property located in Charlotte, Mecklenburg County. Should you have any questions or need additional information, please do not hesitate to contact us at (704) 586-0007. Sincerely, Hart & Hickman, PC Haley Martin, PG Ralph McGee, PG Senior Project Geologist Project Manager Enclosure cc: Mr. Tyson Reilly, The Ardent Companies (Via Email) Mr. Sam Lumpkin, McGuireWoods (Via Email) i https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc Brownfields Assessment Report Harrelson Ford 6500 South Boulevard Charlotte, North Carolina Brownfields Project No. 25046-21-060 H&H Job No. ACO-002 Table of Contents 1.0 Introduction .............................................................................................................................1  1.1 Previous Assessment Activities .............................................................................................1  1.2 Brownfields Activities ...........................................................................................................5  2.0 Brownfields Assessment Activities ........................................................................................6  3.0 Soil Assessment Activities .......................................................................................................7  3.1 Soil Sampling Activities ........................................................................................................7  3.2 Soil Sample Analytical Results .............................................................................................8  4.0 Soil Gas Assessment Activities ...............................................................................................9  4.1 Soil Gas Sampling Activities .................................................................................................9  4.2 Soil Gas Sampling Results ..................................................................................................12  4.3 Vapor Intrusion Risk Evaluation .........................................................................................13  5.0 Quality Assurance – Quality Control ..................................................................................15  6.0 Summary and Conclusions ..................................................................................................16  ii https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc List of Tables Table 1 Summary of Soil Analytical Data Table 2 Summary of Soil Gas Analytical Data List of Figures Figure 1 Site Location Map Figure 2 Site Map Figure 3 Sample Location Map List of Appendices Appendix A Soil Gas Field Forms and Soil Boring Logs Appendix B Laboratory Analytical Report Appendix C DEQ Risk Calculators 1 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc Brownfields Assessment Report Harrelson Ford 6500 South Boulevard Charlotte, North Carolina Brownfields Project No. 25046-21-060 H&H Job No. ACO-002 1.0 Introduction On behalf of TAC Harrelson Ford, LLC, Hart & Hickman, PC (H&H) has prepared this report to document Brownfields assessment activities recently completed at the Harrelson Ford Brownfields property (Brownfields Project No. 25046-21-060) located at 6500 South Boulevard in Charlotte, Mecklenburg County, North Carolina (Site). The Site consists of one parcel (Parcel Identification No. 17304204) that totals approximately 10.6 acres of land located in a mixed light industrial, commercial, and residential use area approximately five miles south of uptown Charlotte. A Site location map is provided as Figure 1. The northern portion of the Site is developed with an unoccupied approximate 2,000 square foot (sq ft) warehouse (Building 1), an approximate 9,300 sq ft service garage (Building 2), an unoccupied approximate 20,000 square foot (sq ft) vehicle showroom and service garage (Building 3), and one unoccupied approximate 14,000 sq ft service garage (Building 4). Remaining portions of the Site consist of paved access drives, parking areas, and equipment material staging areas. The Site and surrounding area are shown in Figure 2. Proposed redevelopment of the Brownfields property includes razing the existing Site buildings and leveling the Site for construction of a townhome development. This report has been prepared to document additional soil and soil gas assessment activities completed in the areas of Building 2 through Building 4 of the Harrelson Ford Brownfields Property. 1.1 Previous Assessment Activities March 2021 Phase I ESA In March 2021, H&H completed Phase I ESA activities and identified the following 2 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc environmental concerns in connection with the Site:  The Site has been utilized for automotive repair and maintenance operations since the early 1970s. Automotive repair operations likely used petroleum products and/or chlorinated solvents. The Site is also listed in the environmental databases as generator of hazardous wastes as early as 1989. There are no release incidents reported in the environmental databases associated with hazardous wastes or historical automotive repair and maintenance operations at the Site. However, H&H observed oil staining, degraded surfaces, unlabeled 55-gallon drums and 275-gallon plastic totes of unknown fluids, a wash bay with associated floor drains, and open waste oil pans/containers in multiple areas in and around the Site buildings during the Site reconnaissance. Based on the reported use of hazardous materials and observations at the time of Site reconnaissance activities, the potential for impact from an undocumented release or releases associated with over 40 years of on-Site auto repair operations was identified as an environmental concern.  During the Site reconnaissance, H&H observed evidence of four (4) potential underground storage tanks (USTs) within and adjacent to Building 3 (i.e., fill ports and/or vent piping). Aside from the UST removed in 1993 (discussed below), no other USTs are listed for the Site in the environmental databases. The potential for impact from an undocumented release associated with the potential USTs and the potential for additional unidentified USTs was identified as an environmental concern.  H&H observed approximately twenty out-of-use in-ground hydraulic lifts in the service garage of Building 3 and one out-of-use in-ground hydraulic lift in the service garage of Building 2. Details associated with the in-ground lifts (i.e., installation dates, service records, closure records, etc.) were not available at the time of the Phase I ESA. Based on the lack of reports documenting lift system closure, the potential for impact to the Site from an undocumented release from the hydraulic lift systems was identified as an environmental concern.  A trench drain and oil-water separator (OWS) system was installed during construction of 3 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc the southern Site building (Building 4) in the mid- to late-1990s. At the time of Site reconnaissance activities, standing fluids were observed within the trench drains located in the maintenance area of the Site building. Based on the age of the trench drain and OWS system and the observed conditions of the trench drain within the building, the potential for impacts to the Site associated with a release from the trench drain and OWS system was identified as an environmental concern. A Historical Recognized Environmental Condition (HREC) is generally defined as an environmental concern which involves a past release of hazardous substances or petroleum products that has been addressed to the satisfaction of the applicable regulatory authority and that is not subject to activity and/or use limitations. H&H identified the following HREC in connection with the Site:  Based upon review of available environmental reports, one 3,000-gallon motor oil UST was removed from the Site in February 1993. After removal of the UST, three soil samples were collected for laboratory analysis from the base of the UST basin. Two soil samples were submitted for laboratory analysis of oil and grease by EPA Method 9071 and halogenated solvents by EPA Method 8021 and one soil sample was submitted for metals by toxicity characteristic leachate procedure (TCLP). Soil sample laboratory analytical results indicated that oil and grease (up to 630 milligrams per kilogram {mg/kg}) was detected at concentrations above the North Carolina Department of Environmental Quality (DEQ) UST Section Action Level at the time of 250 mg/kg (Incident No. 13888). Halogenated solvents and metals were not detected in the soil samples at concentrations above the regulatory screening criteria. A Site Sensitivity Evaluation (SSE) was completed for the Site to evaluate potential risks associated with residual oil and grease concentrations in soil in the area of the former UST. Results of the SSE indicated that no water supply wells were identified within a 1,500 ft radius of the release incident. Based on results of the SSE, the DEQ UST Section issued a No Further Action (NFA) letter on August 6, 1996. Based on the closed 4 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc regulatory status of the incident without implementation of land or activity use restrictions, the release associated with the former 3,000-gallon motor oil UST represents a HREC in connection with the Site. 2021 Phase II ESA In August 2021, H&H performed Phase II ESA activities at the Site. Assessment activities included the advancement of eight (8) soil borings near areas of concern (i.e., drains, former and suspect USTs, and an OWS), three (3) background soil borings, and twenty-four (24) soil borings adjacent to former in-ground hydraulic lifts for a total of thirty-four (34) soil samples selected for laboratory analysis. Assessment activities also included groundwater sample collection from five (5) temporary monitoring wells. Additionally, fifteen (15) soil gas samples were collected within the footprint of proposed townhome buildings. Soil, groundwater, and soil gas sample locations from the 2021 Phase II ESA are depicted in Figure 3. Results of the soil assessment activities completed in the vicinity of the former in-ground hydraulic lifts identified total petroleum hydrocarbons as diesel range organics (TPH-DRO) concentrations above the DEQ UST Section Action Level of 100 mg/kg at six of the twenty-four lift systems. Hexavalent chromium was detected in samples collected near the former in-ground hydraulic lifts, trench drains associated with the OWS system, and former wash bay floor drain above the DEQ Inactive Hazardous Sites Branch (IHSB) Residential Preliminary Soil Remediation Goals (PSRGs) and background concentrations. No other compounds were detected at concentrations above the DEQ screening criteria in soil samples collected at the Site. Results of groundwater assessment activities completed in upgradient and downgradient portions of the Site and in areas of environmental concern did not identify compounds at concentrations above DEQ 2L Groundwater Quality Standards (2L Standards) or the DEQ Division of Waste Management (DWM) Vapor Intrusion Groundwater Screening Levels (GWSLs). Results of soil gas assessment activities completed within the footprint of the proposed townhome buildings identified several compounds at concentrations above the DEQ DWM Residential and/or Non-Residential Vapor Intrusion Soil Gas Screening Levels (SGSLs). The 5 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc compounds ethylbenzene was detected in sample SG-7, installed adjacent to Building 3 (Figure 3), at a concentration above the DWM Non-Residential Vapor Intrusion SGSL of 490 µg/m3. Laboratory analytical results for sample SG-7 also detected concentrations of 1,2,4- trimethylbenzene, 1,3,5-trimethybenzene, m&p-xylene, o-xylene, n-heptane, n-hexane, and tetrachloroethene (PCE) exceeding the DWM Residential Vapor Intrusion SGSLs. Risk calculator results using compound concentrations detected in the soil gas samples indicate that the worst-case calculated cumulative lifetime incremental carcinogenic risk (LICR) and hazard index (HI) values exceed the DEQ and EPA acceptable thresholds of 1 x 10-4 and 1.0, respectively. 1.2 Brownfields Activities To address environmental concerns associated with historical on-Site and off-Site operations, the Site was entered into the DEQ Brownfields Program and received eligibility in a letter dated October 29, 2021. The PD elected to participate in the Brownfields Program Redevelopment Now option. As part of this process, a kick-off meeting with PD, environmental counsel for the PD, DEQ Brownfields personnel, and H&H was held on January 13, 2022 to discuss prior Site history, proposed redevelopment plans, previous sampling data, and the proposed schedule for completing the Brownfields Agreement. The purpose of the Brownfields assessment activities described herein were completed to address DEQ Brownfields Program requests for additional assessment provided in an email dated January 24, 2022. DEQ Brownfields requests for additional assessment included collection of sub-slab soil gas samples within Building 2 through Building 4 where no samples were previously collected, and collection of an exterior soil gas sample north of Building 3 to further evaluate impacts in the area of Phase II ESA soil gas sample SG-7 (Figure 3). In addition, DEQ requested collection of a soil sample for laboratory analysis in the area of Phase II ESA soil gas sample location SG-7 to evaluate the potential for impacts in soil adjacent to Building 3. 6 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc 2.0 Brownfields Assessment Activities To address the DEQ Brownfields Program request for additional assessment, H&H prepared a Brownfields Assessment Work Plan (Work Plan) dated February 7, 2022. The DEQ Brownfields Program provided approval of the Work Plan in an email dated February 11, 2022. H&H completed the additional assessment activities at the Site on February 16 and 17, 2022. The assessment activities were conducted in general accordance with the DEQ Inactive Hazardous Sites Branch (IHSB) Guidelines for Assessment and Cleanup of Contaminated Sites (Guidelines) dated January 2020, the DEQ DWM Vapor Intrusion Guidance (VI Guidance) dated March 2018, most recent versions of the U.S. Environmental Protection Agency (EPA) Region IV Laboratory Services and Applied Science Division (LSASD) Field Branches Quality System and Technical Procedures guidance, and the DEQ-approved Work Plan. Prior to conducting the assessment field activities, H&H contacted North Carolina 811, the public utility locator, to mark subsurface utilities located on the Site. H&H also contracted with a private utility locator to screen proposed sample locations for subgrade utilities that may not have been marked by the public locator. Additionally, boring locations were hand cleared to approximately 5 ft bgs prior to use of mechanical drilling equipment to further screen the boring locations for the presence of subsurface utilities. A summary of the soil sample activities and results is provided in Section 3.0, and the soil gas sampling activities and results are described in Section 4.0. Quality control and quality assurance details are provided in Section 5.0, and summary and conclusions based on results of the assessment activities are provided in Section 6.0. 7 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc 3.0 Soil Assessment Activities 3.1 Soil Sampling Activities On February 17, 2022, H&H collected one soil sample (SB-9) to evaluate the potential for impacts from former auto repair operations on the northern side of Building 3 where impacts were identified in soil gas (SG-7) during previous Phase II sampling activities. The location of the soil boring is shown in Figure 3. The soil boring was advanced utilizing a decontaminated stainless-steel hand auger to approximately 5 ft bgs and a track-mounted direct push technology (DPT) drill rig to approximately 10 ft bgs. During boring advancement, continuous soil samples were collected from the center of the hand auger bucket or from acetate lined DPT macrocore sleeves. The soil samples were logged for lithological description and field screened for indication of potential impacts by observation for obvious staining, unusual odors, and the presence of volatile organic vapors using a calibrated photoionization detector (PID). Results of field screening did not indicate obvious evidence of potential impacts. Therefore, a soil sample was collected from the 6 to 7 ft bgs depth interval similar to the depth of previous Phase II ESA soil gas sample SG-7. A duplicate soil sample was also collected from the SB-9 soil boring from the 6 to 7 ft bgs depth interval. A boring log including lithologic descriptions and field screening results for the SB-9 soil boring are provided in Appendix A. The soil sample selected for laboratory analysis was placed in dedicated laboratory supplied sample containers, labeled with the sample identification, date, and requested analysis, and placed in a laboratory supplied cooler with ice. The sample was delivered to a Waypoint Analytical (Waypoint) under standard chain of custody protocols for laboratory analysis of semi- VOCs (SVOCs) by EPA Method 8270, Resource Conservation and Recovery Act (RCRA) metals by EPA Methods 6020/7471, and hexavalent chromium by EPA Method 7199. In addition, a sample from an undisturbed portion of soil was collected for volatile organic compounds (VOCs) by EPA Method 8260. 8 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc Following sampling activities, the soil boring was properly abandoned and the surface was repaired similar to pre-drilling conditions. In addition, the soil boring location was estimated using a hand-held global positioning system (GPS) unit. 3.2 Soil Sample Analytical Results Laboratory analytical results were compared to the DEQ IHSB Residential and Industrial/Commercial Preliminary Soil Remedial Goals (PSRGs) dated January 2022. In addition to the IHSB PSRGs, metals results were compared to published concentrations for naturally occurring metals in North Carolina soil as well as Site-specific background levels. A tabular summary of the soil sample laboratory analytical results for organic constituents is presented Table 1A, and a tabular summary of the soil sample laboratory analytical results for metals is provided in Table 1B. In addition to the SB-9 soil sample analytical results, laboratory analytical results for samples collected during previous Phase II ESA activities are also summarized in Table 1A and Table 1B. A copy of the SB-9 soil sample laboratory analytical report and chain of custody record is provided in Appendix B. Laboratory analytical results indicate that a low level of hexavalent chromium (0.91 mg/kg) was detected at a concentration above the DEQ IHSB Residential PSRG of 0.31 mg/kg and background concentrations in the SB-9 soil sample. No other compounds, including petroleum- related compounds or chlorinated solvents detected in SG-7 were detected at concentrations above the DEQ IHSB PSRGs. Results of soil sampling completed in the vicinity of the soil gas sample SG-7 indicate that there is not obvious evidence of a soil source adjacent to the northern side of Building 3. 9 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc 4.0 Soil Gas Assessment Activities To further evaluate the potential for structural vapor intrusion, H&H installed six (6) temporary sub-slab soil gas (SSV-1 through SSV-6) monitoring points within the footprints of existing Site buildings. In addition, one (1) exterior soil gas (SG-16) monitoring point was installed and sampled to further evaluate the potential for structural vapor intrusion into proposed townhome buildings in areas located northeast of Building 3. Please note, that soil gas monitoring point SSV-5 was proposed to be installed as a typical sub-slab soil gas monitoring point for collection of vapor just beneath the slab. However, due to perched water encountered beneath the western portion of the Building 3 slab, the monitoring point was installed into soil beneath the slab and is considered representative of soil gas conditions beneath the building. This deviation from the DEQ-approved Work Plan was discussed and approved by the Brownfield Program project manager on a call held on February 17, 2022. The approximate locations of the soil gas and sub-slab soil gas sampling point locations are shown in Figure 3. Details of the sampling activities and results are described below. 4.1 Soil Gas Sampling Activities Soil Gas Sample Point Installation Under the direction of H&H, Mid-South Environmental advanced two (2) soil borings for the installation of temporary soil gas monitoring points (SG-16 and SSV-5) to further evaluate the potential for structural vapor intrusion into proposed townhome buildings in areas located northeast of Building 3 and within the western portion of the existing Site Building 4. As noted above, sub-slab soil gas sampling point SSV-5 was installed in soil beneath Building 4 due to the presence of perched water just beneath the slab. The locations of the temporary soil gas sampling points are shown on Figure 3. The soil gas monitoring points were installed to a depth of 7 ft bgs and above the estimated depth of the water table capillary fringe. Each soil boring was advanced using DPT drilling methods however, SSV-5 was installed utilizing a concrete core drill until soil was encountered and then advanced using DPT drilling methods. Continuous soil samples were collected from the soil gas 10 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc monitoring point borings and logged for lithologic description, observed for obvious evidence of staining and unusual odors, and field screened for the presence of volatile organic compounds using a calibrated PID. Field screening results did not indicate obvious evidence of potential impacts in the soil gas monitoring point borings. Once at target depth, a six-inch stainless steel vapor implant screen attached to a length of Teflon® tubing was then placed at the base of the borehole. Annular space around the vapor implant screen was filled with filter sand to a depth of approximately 6-inches above the top of the vapor screen. The temporary monitoring points were completed by placing hydrated bentonite from the top of the filter sand to the ground surface. Soil gas sampling points were allowed to equilibrate after installation and prior to sample collection. Boring logs including lithologic descriptions, field screening results, and soil gas monitoring point construction details are provided in Appendix A. Sub-Slab Soil Gas Sample Point Installation H&H installed five (5) sub-slab soil gas sample points (SSV-1 through SSV-4, and SSV-6) within the existing Site buildings (Building 2, Building 3, and Building 4) and collected samples to further evaluate impacts associated with historical auto repair operations. The sub-slab soil gas sample locations are shown on Figure 3. The sub-slab soil gas sampling points were installed using a rotary hammer drill and 1½-inch diameter drill bit to advance a pilot hole into the concrete slab to a depth of approximately 1¾ inches below the slab surface. A drill guide was then placed within the pilot hole, and a 5/8-inch diameter drill bit was utilized to advance a boring through the concrete slab and approximately 5 to 6-inches into the underlying soil. Following concrete borehole advancement, loose concrete cuttings were removed from each boring using a bottlebrush. A Cox-Colvin Vapor PinTM (vapor pin) assembly (brass sampling point and silicone sleeve) was then seated in the borehole using an installation/extraction tool and dead blow hammer to form an air tight seal. Upon installation of the vapor pin assembly, dedicated Teflon® sample tubing was connected to the barbed end of the vapor pin. 11 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc Soil Gas and Sub-Slab Soil Gas Sampling Each soil gas and sub-slab soil gas sample was collected utilizing a 1-liter laboratory supplied batch certified stainless-steel Summa® canister connected to an air-flow regulator calibrated by the laboratory to collect the soil gas sample at a rate of approximately 100 milliliters per minute. Prior to sample collection, a “shut-in” test was conducted on the sampling train and helium leak checks were conducted at each sampling point. The purpose of the shut-in test and helium leak check is to ensure short circuiting with ambient air does not occur during sampling. A description of the shut-in test and helium leak testing procedures is provided below. The shut-in test was conducted by connecting the flow regulator with the vacuum gauge to the Summa® canister and sealing the flow regulator with the laboratory provided brass cap. Once the sampling train was “closed”, the sample valve on the Summa® canister was opened and the reading on the vacuum gauge was recorded. The Summa® canister sample valve was then closed and the vacuum gauge was observed to ensure there was no vacuum loss due to an unsealed connection in the sampling equipment train. If the vacuum reading remained the same, the shut- in test was considered successful. If vacuum loss occurred, connections in the sampling equipment train were adjusted/tightened, the brass cap was reseated, and the shut-in test was repeated until the vacuum reading remained stable. Each sample train passed the shut-in test. Following the shut-in test, the Summa® canister was connected to the sample point Teflon® sample tubing using a brass nut and ferrule assembly to create an air tight seal and the leak check was performed. The leak check was performed by constructing a shroud over the completed sample train at each sampling point and flooding the air with helium gas. Helium concentrations inside the shroud were measured using a calibrated helium gas detector and maintained at concentrations of approximately 15% to 17%. Once helium concentrations stabilized within the shroud, the sample tubing was purged outside of the shroud using a syringe and a three-way valve to collect purged soil gas into a Tedlar® bag. The purged soil gas was then analyzed using the helium gas detector to ensure that helium concentrations in the sampling train are less than 10% of the helium concentrations measure within the shroud. Each soil gas sampling point passed the helium check criteria. 12 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc Following a successful leak check, the soil gas samples were collected by opening the intake valve on the Summa®. Vacuum readings on the Summa® canister were recorded prior to and following the sampling period to ensure adequate sample volume was collected. A vacuum of approximately 5 inches of mercury or more was maintained within the canisters at the conclusion of the sampling event in accordance with DEQ DWM guidance. Following sample collection, the Summa® canisters were placed in laboratory supplied shipping containers, properly labeled, and shipped under standard chain-of-custody protocols to Waypoint for analysis of VOCs by EPA Method TO-15. Upon receipt of the samples, the laboratory recorded the final received vacuum pressure for each Summa® canister. After sample collection, the sample locations were estimated by measuring from known benchmarks within the building (e.g., doors, windows, exterior walls, etc.). The sample locations were properly abandoned and the surfaces were repaired similar to pre-drilling conditions. 4.2 Soil Gas Sampling Results A tabular summary of the soil gas sample analytical results is provided as Table 2. Laboratory analytical results for the soil gas samples were compared to the DEQ DWM Residential and Non-Residential Vapor Intrusion SGSLs dated January 2022. A copy of the laboratory analytical reports and chain of custody record is provided in Appendix B. Sub-slab soil gas sample laboratory analytical results identified the presence of PCE at a concentration above the DEQ DWM Residential Vapor Intrusion Soil Gas Screening Level (SGSL) of 280 µg/m3 in soil gas samples collected in Building 2 (523 micrograms per cubic meter {µg/m3}), Building 3 (range from 1,090 µg/m3 to 6,670 µg/m3), and Building 4 (647 µg/m3). Note that the PCE concentration detected in sub-slab soil gas sample SSV-2 collected within Building 3 also exceeds the Non-Residential SGSL of 3,500 µg/m3. In addition to PCE, results of sub-slab soil gas samples collected within Building 4 indicate that 13 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc TCE (26.9 µg/m3) and vinyl chloride (11,700 µg/m3) were detected at concentrations of the DEQ DWM Vapor Intrusion SGSLs. The non-chlorinated compounds benzene (up to 25.9 µg/m3), 1,3-butadiene (up to 22.1 µg/m3), chloroform (up to 12.1 µg/m3), ethylbenzene (up to 61.6 µg/m3), and naphthalene (up to 2.91 µg/m3) were also detected at concentrations above the DEQ DWM Residential Vapor Intrusion SGSLs in soil gas samples collected at the Site. Low concentrations of benzene (20.9 µg/m3) and naphthalene (2.91 µg/m3) were detected at concentrations above the Residential SGSL in exterior soil gas sample SG-16 collected north of previous soil gas sample SG-7. No other compounds including chlorinated solvents were detected in the SG-16 soil gas sample. No other constituents were detected at concentrations exceeding DEQ DWM Vapor Intrusion SGSLs in the soil gas samples collected at the Site. 4.3 Vapor Intrusion Risk Evaluation The DEQ DWM SGSLs are conservative and based upon a Target Cancer Risk (TCR) of 1 x 10-6 for potential carcinogenic effects and a Target Hazard Quotient (THQ) of 0.2 for potential non- carcinogenic effects. Vapor intrusion mitigation or additional assessment is not typically warranted if the calculated cumulative lifetime incremental carcinogenic risk (LICR) is 1 x 10-4 or less and the acceptable level for non-carcinogenic risk is a hazard index (HI) of 1.0 or less. H&H utilized the DEQ Risk Calculator (January 2022) assuming a residential land use scenario to further evaluate potential cumulative risks for the soil gas to indoor air vapor intrusion pathway for the proposed residential buildings. To model the potential for vapor intrusion under a hypothetical “worst-case” scenario, H&H conservatively calculated the cumulative risks using the highest concentration of any compound detected in any soil gas sample collected within Site Building 2, Building 3, Building 4, and in the exterior area of the proposed townhome buildings located north of Building 3. Risk calculator results are summarized in the table below. 14 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc Risk calculator results indicate that under a hypothetical worst-case scenario for the soil gas to indoor air vapor intrusion pathway for residential use, the cumulative LICR is less than the acceptable risk level of 1 x 10-4 for Building 2 and the exterior area north of Building 3. However, the cumulative risks exceed the acceptable levels using sample data from Building 3 and Building 4. H&H understands that a DEQ Brownfields Program approved vapor intrusion mitigation system designed by a North Carolina licensed Professional Engineer will be installed during construction of the proposed buildings. Copies of the completed risk calculators are provided in Appendix F. Evaluation Area Land Use Scenario Calculated Cumulative LICR Calculated Cumulative HI Exceedance of Acceptable Levels? Building 2 (interior) Residential 5.6 x 10-6 0.41 No Non-Residential 4.3 x 10-7 0.033 No Building 3 (interior) Residential 2.0 x 10-5 4.9 Yes Non-Residential 1.5 x 10-6 0.39 No Building 4 (interior) Residential 2.1 x 10-3 5.6 Yes Non-Residential 4.3 x 10-5 0.45 No North of Building 3 (exterior) Residential 3.3 x 10-6 0.084 No Non-Residential 2.5 x 10-7 0.0066 No 15 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc 5.0 Quality Assurance – Quality Control For quality assurance and quality control purposes (QA/QC), non-dedicated equipment and tools were decontaminated prior to use at each boring or sampling location or following exposure to soil. In addition, H&H collected duplicate soil and soil gas samples to evaluate the ability of the laboratory to reproduce sample results. Duplicate samples were submitted to the laboratory for the same analysis as the corresponding parent sample. The duplicate soil sample was collected directly into an individual laboratory supplied sample container using sampling methodologies described in Section 3.0. The duplicate soil gas sample was collected concurrently with the parent sample using a laboratory supplied T-fitting which allowed for collection of two soil gas samples from one soil gas sampling point simultaneously. The samples were analyzed for the same parameters as the parent samples, and the analytical results were compared with those of the parent sample. The analytical results of the parent sample and the duplicate sample were used to evaluate the cumulative precision of the analytical method, sample matrix, and sample collection techniques. Duplicate sample laboratory analytical results for each sample media are presented in the summary tables (Table 1A and Table 1B for soil, and Table 2 for soil gas). Review of the duplicate sample results in comparison to the parent sample results indicated that the duplicate samples had good analytical reproducibility. 16 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc 6.0 Summary and Conclusions In February 2022, H&H completed Brownfields assessment activities at the Harrelson Ford Brownfields property in Charlotte, Mecklenburg County. The assessment activities were completed to address DEQ Brownfields Program requests for the collection of soil, and sub-slab and exterior soil gas samples to further evaluate impacts associated with historical auto repair operations conducted at the Site and in the area of previous Phase II ESA sample location SG-7 where impacts were identified in soil gas north of Building 3. A brief summary of the Brownfields assessment activities is provided below. Soil Sampling One (1) soil sample was collected in the vicinity of the previously assessed soil gas sample SG-7, located north of Building 3. Laboratory analytical results indicated a low level of hexavalent chromium at a concentration above the DEQ IHSB Residential PSRGs and background metals but below the DEQ IHSB Commercial/Industrial PSRGs. No organic compounds with the exception of a trace level of acetone were detected at concentrations above the laboratory method detection limits. Soil Gas Sampling Soil gas sample laboratory analytical results identified multiple chlorinated solvents at concentrations exceeding the DEQ DWM Residential and Non-Residential Vapor Intrusion SGSLs at the Site. In addition, multiple non-chlorinated compounds were also detected at concentrations above the DEQ DWM Residential Vapor Intrusion SGSLs in soil gas samples collected at the Site. Soil gas sample SSV-2, collected from the western interior portion of Building 3, and soil gas sample SSV-5, collected from the interior western portion of Building 4, indicated the presence of PCE and vinyl chloride exceeding the DEQ Non-Residential Vapor Intrusion SGSLs. Chloroform, benzene, ethylbenzene, naphthalene, PCE, and TCE were detected above the Residential SGSLs in other soil gas samples. To further evaluate the potential vapor intrusion risks for the proposed Site buildings, H&H utilized the DEQ Risk Calculator (January 2022) using the highest compound concentrations 17 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ardent - aco/aco.002 - 6500 south boulevard/brownfields/assessment/report/25046 - brownfields assessment report_harrelson ford.doc detected in any soil gas sample within each building footprint to simulate a hypothetical “worst- case” scenario for residential use. The results of the risk calculations for the interior of Building 2 and the exterior area, north of Building 3, did not indicate cumulative risk exceeding the acceptable risk levels. However, the results of the risk calculations for the interior areas of Building 3 and Building 4 indicated cumulative carcinogenic LICR and HI values above the above the acceptable level of 1 x 10-4 and 1.0, respectively. In summary, chlorinated solvent and petroleum-related impacts are present in sub-slab and soil gas in Site buildings historically used for auto repair operations. Groundwater and exterior soil gas sample analytical results from 2021 Phase II ESA activities, and exterior soil gas sample laboratory analytical results did not identify chlorinated compounds at concentrations above the applicable screening levels in samples collected near the existing Site buildings and in areas downgradient of auto repair operations. Based on the chlorinated compound concentrations detected within the Site buildings, it appears there may be a release to soil beneath the existing buildings (i.e., soil source) that may need to be managed during proposed redevelopment (if identified). Additionally, the shallow soil beneath the Site buildings will be characterized and managed during grading activities and prior to being re-used on-Site as fill or transported to a DEQ-approved disposal facility. Management of soil beneath existing building slabs will also be incorporated into the Environmental Management Plan (EMP). Potential vapor intrusion into proposed residential buildings will be managed in accordance with the DEQ Brownfields Program approved Vapor Intrusion Mitigation Plan. Tables Table 1ASummary of Organic Constituent Soil Analytical DataHarrelson FordCharlotte, North CarolinaH&H Job No. ACO-002LocationSample IDHL-1 HL-2 HL-3 HL-4 HL-5 HL-6 HL-7 HL-8 HL-9 HL-10 HL-11 HL-12 HL-13 HL-14Depth (ft bgs)Sample DateUnitsTPH (8015C)DRO (C10-C28)<3.6 <3.8 <3.7 <4.14.1 J 4.5 J<3.94.9 J<3.81,3104.3 J<3.7 <3.710.2-- --100PCBs (8082A)ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL-- ----VOCs (8260D)AcetoneNA NA NA NA NA NA NA NA NA0.35NA NA NA NA14,000 210,000--2-Butanone (MEK)NA NA NA NA NA NA NA NA NA <0.031 NA NA NA NA5,500 40,000--n-ButylbenzeneNA NA NA NA NA NA NA NA NA0.12NA NA NA NA780 12,000--sec-ButylbenzeneNA NA NA NA NA NA NA NA NA <0.0028 NA NA NA NA1,600 23,000--ChloroformNA NA NA NA NA NA NA NA NA <0.0039 NA NA NA NA0.340 1.5--1,1-DichloroethaneNA NA NA NA NA NA NA NA NA0.0035 JNA NA NA NA3.8 17--cis-1,2-DichloretheneNA NA NA NA NA NA NA NA NA <0.0022 NA NA NA NA31 470--EthylbenzeneNA NA NA NA NA NA NA NA NA0.042NA NA NA NA627--Isopropylbenzene (Cumene)NA NA NA NA NA NA NA NA NA <0.0022 NA NA NA NA410 2,100--p-IsopropyltolueneNA NA NA NA NA NA NA NA NA <0.0031 NA NA NA NANE NE--Methylene ChlorideNA NA NA NA NA NA NA NA NA <0.017 NA NA NA NA58 650--Methyl-tert-butyl etherNA NA NA NA NA NA NA NA NA <0.0024 NA NA NA NA49 220--NaphthaleneNA NA NA NA NA NA NA NA NA0.052NA NA NA NA2.1 8.8--n-PropylbenzeneNA NA NA NA NA NA NA NA NA <0.0023 NA NA NA NA780.0 5,100.0--TetrachloroetheneNA NA NA NA NA NA NA NA NA0.14NA NA NA NA17 82--TolueneNA NA NA NA NA NA NA NA NA0.039NA NA NA NA990 9,700--TrichloroetheneNA NA NA NA NA NA NA NA NA0.012NA NA NA NA0.87 4--1,2,4-TrimethylbenzeneNA NA NA NA NA NA NA NA NA0.38NA NA NA NA63 430--1,3,5-TrimethylbenzeneNA NA NA NA NA NA NA NA NA0.17NA NA NA NA56 320--m&p-XyleneNA NA NA NA NA NA NA NA NA0.17NA NA NA NA120 140--o-XyleneNA NA NA NA NA NA NA NA NA0.084NA NA NA NA140 590--Xylene (Total)NA NA NA NA NA NA NA NA NA0.25NA NA NA NA120 530--SVOCs (8270E)Di-n-butylphthalateNA NA NA NA NA NA NA NA NA0.31 JNA NA NA NA1,300 16,000--bis(2-Ethylhexyl)phthalateNA NA NA NA NA NA NA NA NA <0.15 NA NA NA NA39 160--1-MethylnaphthaleneNA NA NA NA NA NA NA NA NA <0.13 NA NA NA NA18 73--2-MethylnaphthaleneNA NA NA NA NA NA NA NA NA <0.15 NA NA NA NA48 600--PhenanthreneNA NA NA NA NA NA NA NA NA <0.12 NA NA NA NANE NE--Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated January 2022. 2) DEQ Division of Waste Management Underground Storage Tank (UST) Section Action Level (December 2013).Samples were collected by H&H during Phase II Environmental Site Assessment activities in August 2021 and during Brownfields asssessment activities in February 2022.Hydraulic lift samples were submitted for VOCs, SVOCs, and metals analysis for only those samples with TPH-DRO at concentrations above the DEQ UST Section Action Limit. Laboratory analytical method shown in parentheses. Only those compounds detected in at least one sample are shown in the table above.Concentrations are reported in milligrams per kilogram (mg/kg). Concentrations are reported to the laboratory method detection limits (MDLs).Bold values indicate compound exceeds the Residential PSRG or UST Action Level. VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; TPH = total petroleum hydrocarbons; DRO = diesel range organics NA = not analyzed; -- = not applicable; NE = no established standard; BDL = below laboratory method detection limits; OWS = oil/water separatorJ = Compound was detected at a concentration above the laboratory method detection limits, but below the laboratory reporting limits resulting in a laboratory estimated concentration. Screening Criteria Former In-Ground Hydraulic Lifts8-108/3/2021mg/kgResidential PSRGs (1)Industrial/Commercial PSRGs (1)Action Level (2)https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Ardent ‐ ACO/ACO.002 ‐ 6500 South Boulevard/Brownfields/Assessment/tables/draft Data Tables (combined).xlsx3/17/2022Table 1A (Page 1 of 3)Hart & Hickman, PC Table 1ASummary of Organic Constituent Soil Analytical DataHarrelson FordCharlotte, North CarolinaH&H Job No. ACO-002LocationSample IDHL-15 HL-16 HL-17 HL-18 HL-19 HL-20 HL-21 HL-22 HL-24Depth (ft bgs)Sample Date8/4/2021UnitsTPH (8015C)DRO (C10-C28)<3.7 <3.72,780 338<4.1413<4.2107 874 896<4.7-- --100PCBs (8082A)ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL ALL BDL-- ----VOCs (8260D)AcetoneNA NA <0.035 <0.051 NA <0.057 NA <0.0440.18 0.20NA14,000 210,000--2-Butanone (MEK)NA NA <0.026 <0.038 NA <0.042 NA <0.0330.13 0.15NA5,500 40,000--n-ButylbenzeneNA NA0.49<0.0037 NA0.0056 JNA <0.0027 <0.0029 <0.0027 NA780 12,000--sec-ButylbenzeneNA NA0.32 0.0052 JNA <0.0039 NA <0.0030 <0.0027 <0.0025 NA1,600 23,000--ChloroformNA NA <0.0033 <0.0048 NA <0.0054 NA0.0056 J<0.0037 <0.0034 NA0.340 1.5--1,1-DichloroethaneNA NA <0.0023 <0.0033 NA <0.0036 NA <0.0028 <0.0025 <0.0023 NA3.8 17--cis-1,2-DichloretheneNA NA0.0077 0.046NA <0.0030 NA0.0081<0.0021 <0.0019 NA31 470--EthylbenzeneNA NA0.032<0.0037 NA0.036NA <0.0032 <0.0028 <0.0026 NA627--Isopropylbenzene (Cumene)NA NA0.063<0.0027 NA <0.0030 NA <0.0023 <0.0021 <0.0019 NA410 2,100--p-IsopropyltolueneNA NA0.60<0.0039 NA <0.0043 NA <0.0033 <0.0030 <0.0028 NANE NE--Methylene ChlorideNA NA <0.015 <0.022 NA <0.024 NA <0.019 <0.17 <0.015 NA58 650--Methyl-tert-butyl etherNA NA <0.0021 <0.0030 NA <0.0033 NA <0.0025 <0.0023 <0.0021 NA49 220--NaphthaleneNA NA0.11<0.0042 NA0.55NA0.015<0.00320.0055 JNA2.1 8.8--n-PropylbenzeneNA NA0.19<0.0028 NA <0.0031 NA <0.0024 <0.0022 <0.0020 NA780.0 5,100.0--TetrachloroetheneNA NA0.014<0.0025 NA0.93NA0.018 0.085 0.082NA17 82--TolueneNA NA0.012 0.0082NA0.026NA0.012 0.0050 J 0.0043 JNA990 9,700--TrichloroetheneNA NA <0.0014 <0.0020 NA0.041NA <0.0018 <0.0016 <0.0015 NA0.87 4--1,2,4-TrimethylbenzeneNA NA1.2<0.0022 NA0.73NA0.022 0.025 0.024NA63 430--1,3,5-TrimethylbenzeneNA NA0.51<0.0027 NA <0.0030 NA <0.00230.012<0.0019 NA56 320--m&p-XyleneNA NA <0.0038 <0.0054 NA0.14NA <0.00470.0062 J 0.0062 JNA120 140--o-XyleneNA NA0.014<0.0035 NA0.083NA0.0061 J 0.0032 J<0.0025 NA140 590--Xylene (Total)NA NA0.014<0.0045 NA0.22NA0.0061 J 0.0094 J 0.0062 JNA120 530--SVOCs (8270E)Di-n-butylphthalateNA NA0.35 J 0.33 JNA0.42 JNA <0.130.37 J<0.13 NA1,300 16,000--bis(2-Ethylhexyl)phthalateNA NA0.27 J<0.18 NA <0.19 NA <0.15 <0.15 <0.15 NA39 160--1-MethylnaphthaleneNA NA0.18 J<0.16 NA <0.17 NA <0.14 <0.13 <0.13 NA18 73--2-MethylnaphthaleneNA NA0.25 J<0.18 NA <0.19 NA <0.16 <0.15 <0.15 NA48 600--PhenanthreneNA NA0.14 J<0.15 NA <0.16 NA <0.13 <0.13 <0.12 NANE NE--Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated January 2022. 2) DEQ Division of Waste Management Underground Storage Tank (UST) Section Action Level (December 2013).Samples were collected by H&H during Phase II Environmental Site Assessment activities in August 2021 and during Brownfields asssessment activities in February 2022.Hydraulic lift samples were submitted for VOCs, SVOCs, and metals analysis for only those samples with TPH-DRO at concentrations above the DEQ UST Section Action Limit. Laboratory analytical method shown in parentheses. Only those compounds detected in at least one sample are shown in the table above.Concentrations are reported in milligrams per kilogram (mg/kg). Concentrations are reported to the laboratory method detection limits (MDLs).Bold values indicate compound exceeds the Residential PSRG or UST Action Level. VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; TPH = total petroleum hydrocarbons; DRO = diesel range organics NA = not analyzed; -- = not applicable; NE = no established standard; BDL = below laboratory method detection limits; OWS = oil/water separatorJ = Compound was detected at a concentration above the laboratory method detection limits, but below the laboratory reporting limits resulting in a laboratory estimated concentration. Action Level (2)Former In-Ground Hydraulic LiftsScreening Criteria 8-108/3/2021mg/kgHL-23 / SB-DUP-1Residential PSRGs (1)Industrial/Commercial PSRGs (1)https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Ardent ‐ ACO/ACO.002 ‐ 6500 South Boulevard/Brownfields/Assessment/tables/draft Data Tables (combined).xlsx3/17/2022Table 1A (Page 2 of 3)Hart & Hickman, PC Table 1ASummary of Organic Constituent Soil Analytical DataHarrelson FordCharlotte, North CarolinaH&H Job No. ACO-002LocationSuspect UST Floor Drain Former USTOWSSample IDSB-1 SB-2 SB-3 SB-5 SB-6 SB-7 SB-8Depth (ft bgs)8-10 2-4 8-10 2-4 2-4 2-4 8-10Sample Date8/2/2021 8/3/2021 8/2/2021 8/3/2021 8/2/2021 8/2/2021 8/2/2021 Range MeanUnitsTPH (8015C)DRO (C10-C28)NA NA NA NA NA NA NA NA NA NA NA-- -- -- --100PCBs (8082A)NA NA NA NA NA NA NA NA NA NA NA-- -- -- ----VOCs (8260D)Acetone<0.0342 <0.0400 <0.0367 <0.0353 <0.030 <0.02830.0793 J<0.0347 <0.0340.005 J 0.004 J14,000 210,000 -- ----2-Butanone (MEK)<0.026 <0.030 <0.027 <0.026 <0.022 <0.021 <0.032 <0.026 <0.025 <0.0008 <0.00085,500 40,000 -- ----n-Butylbenzene<0.0025 <0.0029 <0.0027 <0.0026 <0.0022 <0.0021 <0.0032 <0.0026 <0.0025 <0.0006 <0.0006780 12,000 -- ----sec-Butylbenzene<0.0023 <0.0027 <0.0025 <0.0024 <0.0021 <0.0019 <0.0030 <0.0024 <0.0023 <0.0007 <0.00071,600 23,000 -- ----Chloroform<0.0032 <0.0038 <0.0035 <0.0033 <0.0028 <0.0027 <0.0041 <0.0033 <0.0032 <0.001 <0.0010.340 1.5 -- ----1,1-Dichloroethane<0.0022 <0.0026 <0.0024 <0.0023 <0.0019 <0.0018 <0.0028 <0.0022 <0.0022 <0.001 <0.0013.8 17 -- ----cis-1,2-Dichlorethene<0.0008 <0.0021 <0.0020 <0.0019 <0.0016 <0.00150.0141<0.0018 <0.0018 <0.0010 <0.001031 470 -- ----Ethylbenzene<0.0025 <0.0029 <0.0027 <0.0026 <0.0022 <0.0021 <0.0031 <0.0025 <0.0025 <0.0007 <0.0007627------Isopropylbenzene (Cumene)<0.0018 <0.0021 <0.0019 <0.0019 <0.0016 <0.0015 <0.0023 <0.0018 <0.0018 <0.0006 <0.0006410 2,100 -- ----p-Isopropyltoluene<0.0026 <0.0031 <0.0028 <0.0027 <0.0023 <0.0022 <0.0033 <0.00270.0167<0.001 <0.001NE NE -- ----Methylene Chloride<0.0146 <0.0171 <0.0157 <0.0151 <0.0128 <0.01210.0748 0.0596 0.0596<0.001 <0.00158 650 -- ----Methyl-tert-butyl ether<0.002.0 <0.0023 <0.0021 <0.0021 <0.0017 <0.0016 <0.0025 <0.00200.0032 J<0.0008 <0.000849 220 -- ----Naphthalene<0.0028 <0.0033 <0.0030 <0.0029 <0.0025 <0.00230.0158<0.0028 <0.0028 <0.001 <0.0012.1 8.8 -- ----n-Propylbenzene<0.0019 <0.0022 <0.0020 <0.0020 <0.0017 <0.0016 <0.0024 <0.0019 <0.0019 <0.0007 <0.0007780.0 5,100.0 -- ----Tetrachloroethene<0.00170.0183<0.0018 <0.0017 <0.0015 <0.00140.114 0.473<0.0017 <0.001 <0.00117 82 -- ----Toluene<0.0015 <0.0018 <0.0016 <0.0016 <0.0013 <0.00130.0209<0.0015 <0.0015 <0.0008 <0.0008990 9,700 -- ----Trichloroethene<0.00140.0075<0.0015 <0.0014 <0.0012 <0.00110.0116 0.0058<0.0014 <0.001 <0.0010.87 4 -- ----1,2,4-Trimethylbenzene<0.0015 <0.0017 <0.0016 <0.0015 <0.0013 <0.00120.084.9<0.0015 <0.0014 <0.0006 <0.000663 430 -- ----1,3,5-Trimethylbenzene<0.0018 <0.0021 <0.0019 <0.0018 <0.0016 <0.00150.0494<0.0018 <0.0018 <0.0007 <0.000756 320 -- ----m&p-Xylene<0.0036 <0.0043 <0.0039 <0.0038 <0.0032 <0.00300.121<0.0037 <0.0036 <0.001 <0.001120 140 -- ----o-Xylene<0.0024 <0.0028 <0.0025 <0.0024 <0.0021 <0.0019 <0.0030 <0.0024 <0.0023 <0.0006 <0.0006140 590 -- ----Xylene (Total)<0.0015 <0.0035 <0.0039 <0.0031 <0.0027 <0.00250.121<0.0031 <0.0030 <0.0006 <0.0006120 530 -- ----SVOCs (8270E)Di-n-butylphthalate<0.14 <0.13 <0.14 <0.13 <0.13 <0.12 <0.13 <0.67 <0.13 <0.134 <0.1351,300 16,000-- ----bis(2-Ethylhexyl)phthalate<0.17 <0.15 <0.16 <0.15 <0.15 <0.14 <0.15 <0.78 <0.15 <0.150 <0.15139 160-- ----1-Methylnaphthalene<0.15 <0.14 <0.14 <0.14 <0.13 <0.13 <0.14 <0.70 <0.13 <0.132 <0.13418 73-- ----2-Methylnaphthalene<0.17 <0.15 <0.16 <0.15 <0.15 <0.15 <0.16 <0.80 <0.15 <0.125 <0.12648 600-- ----Phenanthrene<0.14 <0.13 <0.13 <0.13 <0.12 <0.12 <0.13 <0.65 <0.12 <0.260 <0.263NE NE-- ----Notes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated January 2022. 2) DEQ Division of Waste Management Underground Storage Tank (UST) Section Action Level (December 2013).Samples were collected by H&H during Phase II Environmental Site Assessment activities in August 2021 and during Brownfields asssessment activities in February 2022.Hydraulic lift samples were submitted for VOCs, SVOCs, and metals analysis for only those samples with TPH-DRO at concentrations above the DEQ UST Section Action Limit. Laboratory analytical method shown in parentheses. Only those compounds detected in at least one sample are shown in the table above.Concentrations are reported in milligrams per kilogram (mg/kg). Concentrations are reported to the laboratory method detection limits (MDLs).Bold values indicate compound exceeds the Residential PSRG or UST Action Level. VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; TPH = total petroleum hydrocarbons; DRO = diesel range organics NA = not analyzed; -- = not applicable; NE = no established standard; BDL = below laboratory method detection limits; OWS = oil/water separatorJ = Compound was detected at a concentration above the laboratory method detection limits, but below the laboratory reporting limits resulting in a laboratory estimated concentration. mg/kgSB-9 / SB-DUP6-72/17/2022SB-4 / SB-DUP-22-48/3/2021Northern Exterior Wall of Building 3Screening Criteria Residential PSRGs (1)Industrial/Commercial PSRGs (1)Background Metals (2)Action Level (2)Former Wash-Bay Floor Drains Trench Drain - Building 4https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Ardent ‐ ACO/ACO.002 ‐ 6500 South Boulevard/Brownfields/Assessment/tables/draft Data Tables (combined).xlsx3/17/2022Table 1A (Page 3 of 3)Hart & Hickman, PC Table 1BSummary of Metals Soil Analytical DataHarrelson FordCharlotte, North CarolinaH&H Job No. ACO-002LocationSample IDHL-1 HL-2 HL-3 HL-4 HL-5 HL-6 HL-7 HL-8 HL-9 HL-10 HL-11 HL-12 HL-13 HL-14Depth (ft bgs)Sample DateRange MeanUnitsMetals (6020B/7471B/7199)ArsenicNA NA NA NA NA NA NA NA NA0.836 JNA NA NA NA0.68 3.01.0 - 18 4.8BariumNA NA NA NA NA NA NA NA NA22.2NA NA NA NA3,100 47,00050-1,000 356CadmiumNA NA NA NA NA NA NA NA NA <0.0958 NA NA NA NA14 2001.0 - 10 4.3Chromium (Total)NA NA NA NA NA NA NA NA NA7.31NA NA NA NA -- --7.0 - 300 65Hexavalent ChromiumNA NA NA NA NA NA NA NA NA <0.286 NA NA NA NA0.31 6.5NS NSTrivalent ChromiumNA NA NA NA NA NA NA NA NA7.31NA NA NA NA23,000 350,000NS NSLeadNA NA NA NA NA NA NA NA NA4.61NA NA NA NA400 800ND - 50 16MercuryNA NA NA NA NA NA NA NA NA <0.0202 NA NA NA NA4.7 700.03 - 0.52 0.121SeleniumNA NA NA NA NA NA NA NA NA0.350 JNA NA NA NA78 1,200<0.1 - 0.8 0.42SilverNA NA NA NA NA NA NA NA NA <0.0969 NA NA NA NA78 1,200ND - 5.0 NSNotes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated January 2022. 2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Drugan and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern and Conterminous U.S. Soils. 3) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management Underground Storage Tank (UST) Section Action Level (December 2013).Samples were collected by H&H during Phase II Environmental Site Assessment activities in August 2021 and during Brownfields asssessment activities in February 2022.Hydraulic lift samples were submitted for VOCs, SVOCs, and metals analysis for only those samples with TPH-DRO at concentrations above the DEQ UST Section Action Limit. Laboratory analytical method shown in parentheses. Concentrations are reported in milligrams per kilogram (mg/kg). Concentrations are reported to the laboratory method detection limits (MDLs).Bold values indicate compound exceeds the Residential PSRG and background concentrations. NA = not analyzed; -- = not applicable; NS = not specified; ND = not detected; OWS = oil/water separator; UST - underground storage tankJ = Compound was detected at a concentration above the laboratory method detection limits, but below the laboratory reporting limits resulting in a laboratory estimated concentration. mg/kg8/3/20218-10Former In-Ground Hydraulic LiftsResidential PSRGs (1)Industrial/Commercial PSRGs (1)Background Metals (2)Screening Criteria https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Ardent ‐ ACO/ACO.002 ‐ 6500 South Boulevard/Brownfields/Assessment/tables/draft Data Tables (combined).xlsx3/17/2022Table 1B (Page 1 of 3)Hart & Hickman, PC Table 1BSummary of Metals Soil Analytical DataHarrelson FordCharlotte, North CarolinaH&H Job No. ACO-002LocationSample IDHL-15 HL-16 HL-17 HL-18 HL-19 HL-20 HL-21 HL-22 HL-24Depth (ft bgs)Sample Date8/4/2021 Range MeanUnitsMetals (6020B/7471B/7199)ArsenicNA NA1.42 2.77NA2.28NA1.89 0.621 J 1.02 JNA0.68 3.01.0 - 18 4.8BariumNA NA43.1 94.1NA84.0NA114 16.4 27.9NA3,100 47,00050-1,000 356CadmiumNA NA <0.0997 <0.107 NA0.146 JNA <0.111 <0.0966 <0.0969 NA14 2001.0 - 10 4.3Chromium (Total)NA NA15.5 40.8NA47.8NA34.3 27.1 19.2NA -- --7.0 - 300 65Hexavalent ChromiumNA NA <0.2970.487 JNA <0.366 NA <0.3320.603 J<0.289 NA0.31 6.5NS NSTrivalent ChromiumNA NA15.5 40.31NA47.8NA34.3 26.49 19.2NA23,000 350,000NS NSLeadNA NA8.98 7.09NA11.4NA7.66 9.10 7.53NA400 800ND - 50 16MercuryNA NA <0.0210 <0.0224 NA <0.0259 NA <0.0234 <0.02030.0420 JNA4.7 700.03 - 0.52 0.121SeleniumNA NA0.580 J 2.98 JNA1.02 JNA1.33 J<0.2030.668 JNA78 1,200<0.1 - 0.8 0.42SilverNA NA <0.101 <0.108 NA <0.124 NA <0.113 <0.0977 <0.0980 NA78 1,200ND - 5.0 NSNotes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated January 2022. 2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Drugan and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern and Conterminous U.S. Soils. 3) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management Underground Storage Tank (UST) Section Action Level (December 2013).Samples were collected by H&H during Phase II Environmental Site Assessment activities in August 2021 and during Brownfield sssessment activities in February 2022.Hydraulic lift samples were submitted for VOCs, SVOCs, and metals analysis for only those samples with TPH-DRO at concentrations above the DEQ UST Section Action Limit. Laboratory analytical method shown in parentheses. Concentrations are reported in milligrams per kilogram (mg/kg). Concentrations are reported to the laboratory method detection limits (MDLs).Bold values indicate compound exceeds the Residential PSRG and background concentrations. NA = not analyzed; -- = not applicable; NS = not specified; ND = not detected; OWS = oil/water separator; UST - underground storage tankJ = Compound was detected at a concentration above the laboratory method detection limits, but below the laboratory reporting limits resulting in a laboratory estimated concentration. mg/kgHL-23 / SB-DUP-1Residential PSRGs (1)Industrial/Commercial PSRGs (1)Background Metals (2)8-108/3/2021Screening Criteria Former In-Ground Hydraulic Liftshttps://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Ardent ‐ ACO/ACO.002 ‐ 6500 South Boulevard/Brownfields/Assessment/tables/draft Data Tables (combined).xlsx3/17/2022Table 1B (Page 2 of 3)Hart & Hickman, PC Table 1BSummary of Metals Soil Analytical DataHarrelson FordCharlotte, North CarolinaH&H Job No. ACO-002LocationSuspected USTFloor Drain Former USTOWSSample IDSB-1 SB-2 SB-3 SB-5 SB-6 SB-7 SB-8 BG-1 BG-2 BG-3Depth (ft bgs)8-10 2-4 8-10 2-4 2-4 2-4 8-10Sample Date8/2/2021 8/3/2021 8/2/2021 8/3/2021 8/2/2021 8/2/2021 8/2/2021Range MeanUnitsMetals by 6020B/7471B/7199Arsenic0.567 B,J 0.536 B,J 0.210 B,J 0.324 B,J 0.403 B,J,ML 0.454 B,J 0.541 B,J 0.456 B,J 0.932 B,J 1.86 1.75 0.910 B,J 0.813 B,J 0.750 B,J 0.68 3.01.0 - 18 4.8Barium301 55.2 11.8 10.1 10.8 5.82 149 142 38.0 19.4 18.4 81.6 123 59.7 3,100 47,00050-1,000 356Cadmium<0.122 <0.104 <0.103 <0.0990 <0.0997 <0.0975 <0.104 <0.102 <0.101 <0.0828 <0.0835 <0.09710.107 J<0.092214 2001.0 - 10 4.3Chromium (Total)28.6 17.5 2.45 J 9.44 19.3 14.8 14.7 16.9 12.9 70.1 75.3 21.2 11.5 0.989 J-- --7.0 - 300 65Hexavalent Chromium0.736 J 0.875 J<0.3070.865 J 1.34 1.35 0.715 J 0.882 J<0.3020.62 0.91<0.290 <0.282 <0.2750.31 6.5NS NSTrivalent Chromium27.86 16.63 2.45 J 8.58 17.96 13.15 13.99 16.02 12.9 69.5 74.4 21.2 11.5 0.989 J 23,000 350,000NS NSLead4.87 5.99 2.90 B 4.39 6.12 5.51 1.99 B,J 3.00 B 5.32 12.0 12.8 12.6 11.5 7.38 400 800ND - 50 16Mercury<0.0257 <0.0219 <0.0482 <0.0463 <0.0210 ML,R1 <0.0456 <0.0219 <0.02150.0260 J<0.0151 <0.01520.0226 J<0.0199 <0.01944.7 700.03 - 0.52 0.121Selenium0.305 J<0.219 <0.217 <0.208 <0.210 <0.205 <0.219 <0.2150.242 J<0.929 <0.9370.543 J 0.379 J 0.408 J 78 1,200<0.1 - 0.8 0.42Silver<0.123 <0.609 <0.104 <0.100 <0.101 <0.0986 <0.105 <0.103 <0.102 <0.0589 <0.0594 <0.0982 <0.0958 <0.093378 1,200ND - 5.0 NSNotes:1) North Carolina Department of Environmental Quality (DEQ) Inactive Hazardous Sites Branch (IHSB) Preliminary Soil Remediation Goals (PSRGs) dated January 2022. 2) Range and mean values of background metals for North Carolina soils taken from Elements in North American Soils by Drugan and Chekiri, 2005. Cd and Ag concentrations were taken from Southeastern and Conterminous U.S. Soils. 3) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management Underground Storage Tank (UST) Section Action Level (December 2013).Samples were collected by H&H during Phase II Environmental Site Assessment activities in August 2021 and during Brownfield sssessment activities in February 2022.Hydraulic lift samples were submitted for VOCs, SVOCs, and metals analysis for only those samples with TPH-DRO at concentrations above the DEQ UST Section Action Limit. Laboratory analytical method shown in parentheses. Concentrations are reported in milligrams per kilogram (mg/kg). Concentrations are reported to the laboratory method detection limits (MDLs).Bold values indicate compound exceeds the Residential PSRG and background concentrations. NA = not analyzed; -- = not applicable; NS = not specified; ND = not detected; OWS = oil/water separator; UST - underground storage tankJ = Compound was detected at a concentration above the laboratory method detection limits, but below the laboratory reporting limits resulting in a laboratory estimated concentration. mg/kgFormer Wash-Bay Floor Drains Trench Drain - Building 4 Background8/2/2021SB-4 / SB-DUP-2Northern Exterior Wall of Building 3Residential PSRGs (1)Industrial/Commercial PSRGs (1)Background Metals (2)2-40-28/3/2021SB-9 / SB-DUP6-72/17/2022Screening Criteria https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Ardent ‐ ACO/ACO.002 ‐ 6500 South Boulevard/Brownfields/Assessment/tables/draft Data Tables (combined).xlsx3/17/2022Table 1B (Page 3 of 3)Hart & Hickman, PC Table 2Summary of Soil Gas Analytical DataHarrelson FordCharlotte, North CarolinaH&H Job No. ACO-002Evaluation AreaSample IDSG-1 SG-2 SG-3 SG-4 SG-5 SG-6 SG-7 SG-8Sample DateSample TypeUnitsVOCs (TO-15)1,1,1−Trichloroethane<0.39 <0.38 <0.39 <0.47 <0.41 <0.59 <196 <0.4735,000 440,0001,1,2,2-Tetrachloroethane<0.78 <0.75 <0.78 <0.94 <0.81 <1.2 <391 <0.941.6 211,1,2-Trichlorotrifluoroethane0.64 J 0.91 J 1.3 J 1.1 J 11.9<0.91 <304 <0.7335,000 440,0001,1-Dichloroethane<0.35 <0.33 <0.35 <0.42 <0.36 <0.52 <173 <0.42587701,2,4-Trimethylbenzene0.97 J 10.5 1.6 J 1.6 J 2.9 3.62,1508.4 420 5,3001,3,5-Trimethylbenzene<0.613.0 0.78 J<0.730.89 J 2.1 J1,8105.0 420 5,3001,3-Butadiene<0.25 <0.24 <0.25 <0.30 <0.26 <0.38 <126 <0.303.1 411,3-Dichlorobenzene11.8 6.6 7.9 5.6 J 16.5 12.1<535 <1.3NE NE1,4-Dichlorobenzene<1.8 <1.8 <1.8 <2.2 <1.9 <2.8 <922 <2.28.5 1101,4-Dioxane NANANANANANANANA19 2502-Butanone (MEK)8.1 19.0 24.9 23.4 15.1 25.3<48964.0 35,000 440,0002-Hexanone<0.931.5 J<0.932.3 J 2.8 J 3.4 J<46517.2 210 2,6002-Propanol (Isopropanol)1.9 J<1.01.8 J<1.336.5 6.0 J<535 <1.31,400 18,0004-Ethyltoluene<0.994.6 J 3.2 J<1.2 <1.0 <1.51,390 J 1.8 J NE NE4-Methyl-2-pentanone (MIBK)3.5 J 3.0 J 2.4 J 2.5 J 3.4 J 4.1 J<3376.9 J 21,000 260,000Acetone37.5 26.6 51.3 34.6 89.5 133<1,900552 NE NEBenzene0.79 J 1.619.14.6 2.8 10.3<12019.412 160Bromodichloromethane<0.505.30.65 J 0.87 J 0.78 J<0.75 <249 <0.602.5 33Bromomethane<0.320.61 J<0.32 <0.38 <0.33 <0.47 <1580.48 J 35 440Carbon disulfide68.4 42.3 101 29.7 52.3 113<136217 4,900 61,000Carbon tetrachloride<0.59 <0.57 <0.59 <0.71 <0.61 <0.88 <294 <0.7116 200Chlorobenzene<0.33 <0.31 <0.33 <0.39 <0.34 <0.49 <163 <0.39350 4,400Chloroethane<0.470.93 J 1.8 0.58 J<0.49 <0.71 <235 <0.5628,000 350,000Chloroform1.4 J87.612019.2 35.6<0.58 <1920.92 J 4.1 53Chloromethane<0.18 <0.17 <0.183.7 0.73 J 2.0<89.5 <0.21630 7,900cis-1,2-Dichloroethene<0.41 <0.39 <0.41 <0.49 <0.43 <0.62 <205 <0.49NE NECyclohexane1.1 J 2.9 J 52.2 2.5 J 1.4 J 8.7 27,800 63.5 42,000 530,000Dibromochloromethane<1.1 <1.0 <1.1 <1.3 <1.1 <1.6 <541 <1.3NE NEDichlorodifluoromethane2.5 3.3 2.3 2.7 63.1 2.1 J<198 <0.47700 8,800Ethanol18.4 7.6 29.5 2.7 J 38.7 46.4<62266.8 NE NEEthyl acetate1.5 J<0.260.67 J<0.33 <0.29 <0.41 <1381.3 J 490 6,100Ethylbenzene<0.6512.6 4.3 3.2 5.8 2.2 J2,0904.3 37 490Methylene Chloride<1.2 <1.210.4 2.3 J<1.3 <1.9 <623 <1.53,400 53,000Methyl-tert-butyl ether<0.26 <0.25 <0.26 <0.32 <0.28 <0.40 <132651360 4,700Naphthalene<4.6 <4.4 <4.6 <5.5 <4.8 <6.9 <2,280 <5.52.8 36n-Heptane1.6 J 4.4 33.8<0.465.7 7.325,10027.4 2,800 35,000n-Hexane2.4 16.9 84.0 7.7 8.3 18.114,80074.1 4,900 61,000m&p-Xylene2.0 J 41.6 6.0 11.5 19.6 6.45,79015.4 700 8,800o-Xylene0.62 J 20.6 3.5 3.6 5.6 2.7 J4,5006.3 700 8,800Propylene7.3 46.9 787 47.7 21.9 275 1,070<0.3321,000 260,000Styrene<0.81 <0.781.4 J<0.97 <0.84 <1.2 <405 <0.977,000 88,000Tetrachloroethene33.1 23.7 1.7 20.5 2.6 2.1 J1,74016.3 280 3,500Tetrahydrofuran<0.38 <0.36 <0.38 <0.454.3<0.57 <189 <0.4514,000 180,000Toluene8.0 32.8 20.1 25.8 48.2 10.3 3,080 31.9 35,000 440,000trans-1,2-Dichloroethene<0.35 <0.34 <0.35 <0.42 <0.37 <0.53 <177 <0.42280 3,500Trichloroethene<0.41 <0.40 <0.410.58 J<0.43 <0.62 <206 <0.4914 180Trichlorofluoromethane1.3 J 1.2 J 0.96 J 1.2 J 2.5 J 1.6 J<2452.6 J NE NEVinyl chloride<0.18 <0.182.0<0.22 <0.19 <0.27 <91.2 <0.225.6 280Xylene (Total)NA NA NA NA NA NA NA NA 700 8,800Notes:1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Soil Gas Screening Levels (SGSLs) dated January 2022.Samples were collected by H&H during Phase II Environmental Site Assessment activities in August 2021 and during Brownfields assessment activities in February 2022.Concentrations are reported in micrograms per cubic meter (µg/m3).Laboratory analytical method is shown in parentheses.Compound concentrations are reported to the laboratory method detection limits (MDLs).Only compounds detected in at least one sample are shown in the table above.Bold values exceed the Residential SGSL.Underlined values exceed the Non-Residential SGSL.VOCs = volatile organic compounds; NE = not established; NA = not analyzed Note that due to dilution factor for sample SG-7, MDLs are above the DEQ DWM SGSLs for select compounds. J = Compound concentration was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.B = Compound was detected in the laboratory method blank.Screening Criteria Proposed Residential Building 8/5/2021Residential SGSLs (1)Non-Residential SGSLs (1)Exterior Soil Gasµg/m3µg/m3https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Ardent - ACO/ACO.002 - 6500 South Boulevard/Brownfields/Assessment/tables/draft Data Tables (combined).xlsxTable 2 (Page 1 of 3)Hart & Hickman, PC Table 2Summary of Soil Gas Analytical DataHarrelson FordCharlotte, North CarolinaH&H Job No. ACO-002Evaluation AreaSample IDSG-10 SG-11 SG-12 SG-13 SG-14 SG-15Sample DateSample TypeUnitsVOCs (TO-15)1,1,1−Trichloroethane<0.38 <0.38 <0.36 <0.38 <0.38 <0.45 <0.49 <0.3335,000 440,0001,1,2,2-Tetrachloroethane<0.75 <0.75 <0.72 <0.75 <0.771.7 J<0.99 <0.671.6 211,1,2-Trichlorotrifluoroethane0.70 J 0.66 J 0.74 J<0.58 <0.602.9 J<0.770.93 J 35,000 440,0001,1-Dichloroethane<0.33 <0.33 <0.32 <0.33 <0.340.46 J<0.44 <0.30587701,2,4-Trimethylbenzene1.7 J 1.6 J 0.74 J 1.1 J 10.7 12.0 12.8 7.3 420 5,3001,3,5-Trimethylbenzene0.65 J<0.59 <0.56 <0.594.8 5.4 3.0 2.2 420 5,3001,3-Butadiene<0.24 <0.24 <0.23 <0.24 <0.25 <0.29 <0.32 <0.223.1 411,3-Dichlorobenzene<1.0 <1.09.3<1.0 <1.013.4<1.42.7 J NE NE1,4-Dichlorobenzene<1.8 <1.8 <1.7 <1.8 <1.8 <2.1 <2.3 <1.68.5 1101,4-Dioxane NANANANANANANANA19 2502-Butanone (MEK)8.8 6.0 J 4.3 J 13.0 7.7 11.2 43.9 19.6 35,000 440,0002-Hexanone3.1 J 3.2 J 1.4 J 4.2 J<0.919.9 J<1.21.7 J 210 2,6002-Propanol (Isopropanol)3.5 J 5.6 10.1 4.6 J<1.031.7 158 94.6 1,400 18,0004-Ethyltoluene<0.95 <0.95 <0.92 <0.951.7 J 2.5 J 5.2 J 1.6 J NE NE4-Methyl-2-pentanone (MIBK)1.7 J 1.6 J 0.89 J 2.6 J 3.3 J 4.9 J 8.3 J 6.9 J 21,000 260,000Acetone36.9 33.1 23.3 102 354 66.6 285 103 NE NEBenzene2.6 2.5 0.6918.1 19.210.724.72.0 12 160Bromodichloromethane1.5 J 1.5 J3.8<0.48 <0.49 <0.57 <0.6381.82.5 33Bromomethane1.1 J 0.36 J<0.290.98 J 1.9<0.362.9 0.49 J 35 440Carbon disulfide31.6 31.9 7.6 196 6.4 39.8 211 9.8 4,900 61,000Carbon tetrachloride<0.57 <0.57 <0.54 <0.57 <0.58 <0.67 <0.74 <0.5016 200Chlorobenzene<0.31 <0.310.91 J<0.31 <0.32 <0.37 <0.410.93 J 350 4,400Chloroethane<0.45 <0.45 <0.43 <0.45 <0.46 <0.545.3 0.90 J 28,000 350,000Chloroform24.7 24.0 13.0 4.7<0.38 <0.4473.47164.1 53Chloromethane2.3<0.17 <0.17 <0.17 <0.183.9<0.23 <0.15630 7,900cis-1,2-Dichloroethene<0.39 <0.39 <0.38 <0.39 <0.40 <0.47 <0.52 <0.35NE NECyclohexane1.9 J 1.8 J 16.4 15.0 218 52.4 20.4 12.4 42,000 530,000Dibromochloromethane<1.0 <1.03.3 J<1.0 <1.1 <1.2 <1.431.8 NE NEDichlorodifluoromethane2.6 2.8 2.2<0.38 <0.392.8 2.0 J 2.3 700 8,800Ethanol10.2 8.0 J 118 10.2 13.0 82.6 760 421 NE NEEthyl acetate<0.26 <0.261.3 J<0.26 <0.2717.0 4.7 7.2 490 6,100Ethylbenzene2.9 2.8 0.80 J 1.3 J 1.6 J 28.9 36.4 5.5 37 490Methylene Chloride<1.2 <1.2 <1.2 <1.2 <1.23.8 J 13.3 22.1 3,400 53,000Methyl-tert-butyl ether<0.25 <0.25 <0.24 <0.25 <0.26 <0.30 <0.34 <0.23360 4,700Naphthalene<4.4 <4.4 <4.2 <4.45.8<5.26.0 J 8.62.8 36n-Heptane3.0 2.8 1.8 20.4 9.1 8.9 21.9 4.8 2,800 35,000n-Hexane6.7 5.9 3.1 J 34.8 4.3 16.3 28.4 6.1 4,900 61,000m&p-Xylene9.2 8.8 2.7 J 3.5 J 8.9 11.3 20.8 15.6 700 8,800o-Xylene3.1 3.0 0.94 J 1.5 J 9.3 5.5 31.4 6.4 700 8,800Propylene59.7 50.8<0.25 <0.26 <0.27 <0.31434 18.5 21,000 260,000Styrene<0.78 <0.78 <0.75 <0.78 <0.79 <0.92 <1.00.72 J 7,000 88,000Tetrachloroethene<0.59 <0.592.2<0.591.6 1.9 12.0 2.1 280 3,500Tetrahydrofuran<0.36 <0.36 <0.35 <0.36 <0.37 <0.43 <0.48 <0.3214,000 180,000Toluene17.2 16.5 11.8 6.7 6.3 50.6 59.4 197 35,000 440,000trans-1,2-Dichloroethene<0.34 <0.34 <0.33 <0.34 <0.35 <0.40 <0.45 <0.30280 3,500Trichloroethene<0.40 <0.40 <0.38 <0.40 <0.40 <0.471.0 J 0.79 J 14 180Trichlorofluoromethane1.5 J 1.5 J 1.5 J<0.47 <0.481.5 J 1.6 J 1.4 J NE NEVinyl chloride<0.18 <0.18 <0.17 <0.18 <0.18 <0.21 <0.23 <0.165.6 280Xylene (Total)NA NA NA NA NA NA NA NA 700 8,800Notes:1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Soil Gas Screening Levels (SGSLs) dated January 2022.Samples were collected by H&H during Phase II Environmental Site Assessment activities in August 2021 and during Brownfields assessment activities in February 2022.Concentrations are reported in micrograms per cubic meter (µg/m3).Laboratory analytical method is shown in parentheses.Compound concentrations are reported to the laboratory method detection limits (MDLs).Only compounds detected in at least one sample are shown in the table above.Bold values exceed the Residential SGSL.Underlined values exceed the Non-Residential SGSL.VOCs = volatile organic compounds; NE = not established; NA = not analyzed Note that due to dilution factor for sample SG-7, MDLs are above the DEQ DWM SGSLs for select compounds. J = Compound concentration was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.B = Compound was detected in the laboratory method blank.Screening Criteria Proposed Residential Building 8/5/2021Non-Residential SGSLs (1)Residential SGSLs (1)SG-9 / SG-DUPExterior Soil Gasµg/m3µg/m3https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Ardent - ACO/ACO.002 - 6500 South Boulevard/Brownfields/Assessment/tables/draft Data Tables (combined).xlsxTable 2 (Page 2 of 3)Hart & Hickman, PC Table 2Summary of Soil Gas Analytical DataHarrelson FordCharlotte, North CarolinaH&H Job No. ACO-002Evaluation AreaBuilding 2ExteriorSample IDSSV-1 SSV-3 SSV-4 SSV-5 SSV-6 SG-16Sample Date2/17/20222/17/2022 2/16/2022 2/17/2022Sample TypeSoil GasUnitsVOCs (TO-15)1,1,1−Trichloroethane<0.1441.86 J 1.84 J<0.144 <0.144 <2.88 <0.144 <0.14435,000 440,0001,1,2,2-Tetrachloroethane<0.104 <0.104 <0.104 <0.104 <0.104 <2.08 <0.104 <0.1042211,1,2-Trichlorotrifluoroethane<0.561 <0.561 <0.561 <0.561 <0.561 <11.2 <0.5611.12 J35,000 440,0001,1-Dichloroethane<0.101 <0.101 <0.101 <0.101 <0.101 <2.02 <0.101 <0.10158 7701,2,4-Trimethylbenzene2.81 1.22 J 1.33 J 4.42 1.68 J<2.202.91 5.67420 5,3001,3,5-Trimethylbenzene0.703 J<0.236 <0.2361.32 J 0.408 J<4.720.732 J 1.97 J420 5,3001,3-Butadiene<0.328 <0.328 <0.328 <0.328 <0.32822.1<0.328 <0.3283.1 411,3-Dichlorobenzene<0.174 <0.174 <0.174 <0.174 <0.174 <3.48 <0.174 <0.174NE NE1,4-Dichlorobenzene<0.186 <0.186 <0.186 <0.186 <0.186 <3.721.67 J<0.1868.5 1101,4-Dioxane 1.86 1.03 J 0.951 J 4.04<0.435 <8.69 <0.435 <0.43519 2502-Butanone (MEK)1.70 4.93 5.71 2.94 3.35 9.73 J 15.9 15.635,000 440,0002-Hexanone<0.2853.23 3.22 3.28 3.50<5.713.93<0.285210 2,6002-Propanol (Isopropanol)4.99 22.8 23.1 21.6 2.11 JB 7.67 J 61.2<0.1391,400 18,0004-Ethyltoluene0.555 J<0.128 <0.1280.777 J<0.12811.4 J 0.600 J 1.96 JNE NE4-Methyl-2-pentanone (MIBK)<0.1210.508 J<0.1211.18 J 1.01 J<2.424.48 3.5621,000 260,000Acetone30.1 38.9 42.6 33.5 33.1 24.4 J 398 72.5NE NEBenzene0.588 J 0.262 J 0.303 J 0.668 J 0.326 J35.90.393 J20.912 160Bromodichloromethane<0.150 <0.150 <0.150 <0.150 <0.150 <3.00 <0.150 <0.1502.5 33Bromomethane<0.115 <0.115 <0.115 <0.115 <0.115 <2.30 <0.115 <0.11535 440Carbon disulfide2.06 J 2.29 J 2.25 J 0.532 J 1.93 J 25.9 J 3.86 J 12.04,900 61,000Carbon tetrachloride<0.155 <0.155 <0.155 <0.155 <0.155 <3.10 <0.1551.26 J16 200Chlorobenzene<0.107 <0.107 <0.107 <0.107 <0.107 <2.14 <0.107 <0.107350 4400Chloroethane<0.164 <0.164 <0.164 <0.164 <0.16412.1 J<0.164 <0.16428,000 350,000Chloroform12.1<0.0864 <0.0864 <0.0864 <0.0864 <1.730.425 J<0.08644.1 53Chloromethane<0.0673 <0.0673 <0.0673 <0.0673 <0.0673 <1.34 <0.06730.977 J630 7,900cis-1,2-Dichloroethene<0.0955 <0.0955 <0.0955 <0.0955 <0.095513,500 1.13 J<0.0955NE NECyclohexane5.42<0.1614.69 6.91 6.81 72.0 8.80 21.142,000 530,000Dibromochloromethane<0.208 <0.208 <0.208 <0.208 <0.208 <4.16 <0.208 <0.208NE NEDichlorodifluoromethane2.77 2.79 2.75 2.72 2.76<2.682.62 3.1670 8,800EthanolNA NA NA NA NA NA NA NA NE NEEthyl acetate<0.136 <0.136 <0.136 <0.136 <0.136 <2.72 <0.136 <0.136490 6,100Ethylbenzene1.18 J 0.395 J 0.399 J 2.09 J 0.577 J61.60.903 J 15.837 490Methylene Chloride0.841 J 0.750 J 0.750 J 0.604 J 0.986 J<9.750.938 J 2.173,400 53,000Methyl-tert-butyl ether<0.0336 <0.0336 <0.0336 <0.0336 <0.0336252<0.0336 <0.0336360 4,700Naphthalene2.81<0.183 <0.1832.75 2.70<3.66 <0.1832.912.8 36n-Heptane0.750 J<0.143 <0.1430.533 J<0.14323.8 J 1.14 J 26.12,800 35,000n-Hexane0.779 J<0.0472 <0.04721.10 J<0.047250.3<0.047257.04,900 61,000m&p-Xylene4.45 J 1.55 J 1.48 J 12.7 2.19 J 227 3.55 J 55.0700 8,800o-Xylene1.97 J 0.734 J 0.677 J 12.6 1.15 J 74.6 1.61 J 15.2700 8,800Propylene<0.242 <0.242 <0.24221.0<0.242393<0.24215221,000 260,000Styrene0.596 J 0.430 J 0.405 J 0.741 J 0.575 J<2.480.835 J 1.58 J7,000 88,000Tetrachloroethene523 6,6706,4401,0903.37 J 32.2 J6472.44 J280 3,500Tetrahydrofuran<0.107 <0.1070.779 J<0.1070.457 J<2.14 <0.1071.5714,000 180,000Toluene5.18 2.03 1.82 J 4.02 2.72 224 7.22 25935,000 440,000trans-1,2-Dichloroethene<0.108 <0.108 <0.108 <0.108 <0.108132<0.108 <0.108280 3,500Trichloroethene<0.1991.54 J 1.50 J<0.199 <0.199 <3.9826.9<0.19914 180Trichlorofluoromethane1.65 J 1.12 J 1.11 J 1.32 J 1.43 J<2.601.33 J 2.57 JNE NEVinyl chloride<0.127 <0.127 <0.127 <0.127 <0.12711,700<0.127 <0.1275.6 280Xylene (Total) 6.42 J 2.28 J 2.16 J 25.3 3.34 J 302 5.16 J 70.2700 8,800Notes:1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Soil Gas Screening Levels (SGSLs) dated January 2022.Samples were collected by H&H during Phase II Environmental Site Assessment activities in August 2021 and during Brownfields assessment activities in February 2022.Concentrations are reported in micrograms per cubic meter (µg/m3).Laboratory analytical method is shown in parentheses.Compound concentrations are reported to the laboratory method detection limits (MDLs).Only compounds detected in at least one sample are shown in the table above.Bold values exceed the Residential SGSL.Underlined values exceed the Non-Residential SGSL.VOCs = volatile organic compounds; NE = not established; NA = not analyzed Note that due to dilution factor for sample SG-7, MDLs are above the DEQ DWM SGSLs for select compounds. J = Compound concentration was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.B = Compound was detected in the laboratory method blank.Sub-Slab Soil GasScreening Criteria Residential SGSLs (1)Non-Residential SGSLs (1)Building 3SSV-2/SSV-DUPµg/m32/16/2022Building 4https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Ardent - ACO/ACO.002 - 6500 South Boulevard/Brownfields/Assessment/tables/draft Data Tables (combined).xlsxTable 2 (Page 3 of 3)Hart & Hickman, PC Figures USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed May, 2020. SITE LOCATION MAP HARRELSON FORD6500 SOUTH BOULEVARDCHARLOTTE, NORTH CAROLINA DATE: 6-23-21 JOB NO: ACO-002 REVISION NO: 0 FIGURE. 1 2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology TITLE PROJECT 0 2,000 4,000 SCALE IN FEET Path: S:\AAA-Master Projects\Ardent - ACO\ACO.002 - 6500 South Boulevard\Figures\Figure-1.mxdN U.S.G.S. QUADRANGLE MAP CHARLOTTE EAST, NORTH CAROLINA 2013CHARLOTTE WEST, NORTH CAROLINA 2013 QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC) SITE REVISION NO. 0 JOB NO. ACO-002 DATE: 2-1-22 FIGURE NO. 2 HARRELSON FORD 6500 SOUTH BOULEVARD CHARLOTTE, NORTH CAROLINA SITE MAP LEGEND BROWNFIELDS PROPERTY BOUNDARY PARCEL BOUNDARY RAILROAD TRENCH DRAIN RECTANGULAR FLOOR DRAIN CIRCULAR FLOOR DRAIN WASTE OIL AST NEW OIL AST FORMER UST CONCRETE SECONDARY CONTAINMENT VENT PIPE OUT-OF-USE IN-GROUND HYDRAULIC LIFT OIL/WATER SEPARATOR 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology PARKING NOTES: 1.PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2021. 2.AERIAL IMAGERY OBTAINED FROM MECKLENBURG COUNTY GIS, 2021.OLD PINEVILLE ROADSOUTH BOULEVARDVICTORY CHRISTIAN CAMPUS (7000 OLD PINEVILLE ROAD) BANNER (6424 SOUTH BOULEVARD) ADAMS CAR SALES AND SERVICE (6501 & 6511 SOUTH BOULEVARD) FISHY FISH MARKET (6531 SOUTH BOULEVARD) AMERICAN AUTO SALES (6535 SOUTH BOULEVARD) LIFT AUTO AND SALES (6543 SOUTH BOULEVARD) SOUTH BOULEVARD CAR WASH CENTER (6547 SOUTH BOULEVARD) GOODWILL (6607 SOUTH BOULEVARD) LA PREFERIDA (6625 SOUTH BOULEVARD) PAVED PARKING (NO ASSIGNED ADDRESS) BUILDING #1 - VACANT WAREHOUSE BUILDING #2 - MULTI-TENANT AUTO REPAIR OFFICES/ STORAGE OFFICES BUILDING #4 - MAINTENANCE BAYS WITH ABOVEGROUND HYDRAULIC LIFTS BUILDING #3 - MAINTENANCE BAYS WITH OUT-OF-USE IN-GROUND HYDRAULIC LIFTS S:\AAA-Master Projects\Ardent - ACO\ACO.002 - 6500 South Boulevard\Brownfields\Assessment\Work Plan\Figures\Figures 20220201.dwg, FIG 2, 2/2/2022 12:22:03 PM, sperry BG-3 BG-2 BG-1 SB-6 SB-7 SB-3 SB-5 SB-4 SB-2 SG-5 SG-1 SG-6 SG-11 SG-12SG-7 SG-2 SG-3 SG-8 SG-13 SG-14 SG-4 SG-9 SG-10 SG-15 TMW-1 TMW-5 TMW-3/SB-8 TMW-4/SB-1 TMW-2 REVISION NO. 0 JOB NO. ACO-002 DATE: 2-1-22 FIGURE NO. 3 HARRELSON FORD 6500 SOUTH BOULEVARD CHARLOTTE, NORTH CAROLINA SAMPLE LOCATION MAP LEGEND BROWNFIELDS PROPERTY BOUNDARY PARCEL BOUNDARY EXISTING BUILDING LOCATION RAILROAD 2' ELEVATION CONTOURS (FT. MSL) TRENCH DRAIN RECTANGULAR FLOOR DRAIN CIRCULAR FLOOR DRAIN FORMER UST VENT PIPE OUT-OF-USE IN-GROUND HYDRAULIC LIFT OIL/WATER SEPARATOR PROPOSED TOWNHOME DEVELOPMENT FORMER MONITORING WELL LOCATION FORMER CO-LOCATED SOIL BORING AND TEMPORARY MONITORING WELL LOCATION FORMER SOIL BORING LOCATION FORMER BACKGROUND SOIL BORING LOCATION FORMER SOIL GAS SAMPLE LOCATION SOIL BORING LOCATION SOIL GAS SAMPLE LOCATION SUB-SLAB SAMPLE LOCATION 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology PARKING NOTES: 1.PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2021. 2.PRELIMINARY REDEVELOPMENT PLAN PREPARED BY LAND DESIGN. 3.ELEVATION CONTOURS OBTAINED FROM MECKLEBURG COUNTY LIDAR, 2017. 4.FORMER SOIL, GROUNDWATER, AND SOIL GAS SAMPLES COLLECTED BY H&H IN AUGUST 2021. 5.UST = UNDERGROUND STORAGE TANK FT. 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-2760sSG-161L1342 -2959822/17/22 101349 -1570 78 N/A N/A0.1L/min162201354 -5 NOTES: Borehole cleared to 5' bgs using a hand auger. generated using GroundLogs.online Client: Project: Address: ACO.002 BORING LOG Boring No. Page: SG-16 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/17/2022 2/17/2022 Mid-South Direct Push GeoProbe DT54 Loryn Smith Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 7.0 3.25 Direct Push DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 DP (0') Asphalt (0.5') Clayey SILT (MH); trace fine-medium sand, medium stiff, moist, light tan and red (4') Clayey SILT (MH); medium stiff, moist, red (6') Silty CLAY (CL); stiff, moist, red (6.5') Silty CLAY (CL); stiff, moist, gray brown and red (7') Boring terminated 0.9 0.9 0.5 1.5 0 5 10 15 Harrelson Ford 6500 South Boulevard, Charlotte, NC NOTES: Borehole cleared to 5' bgs using a hand auger. generated using GroundLogs.online BORING LOG Boring No. Page: SSV-5 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/17/2022 2/17/2022 Mid-South Direct Push GeoProbe DT54 Loryn Smith Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 5.5 3.25 Direct Push DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 DP (0') Concrete (0.5') Clayey SILT (MH); medium stiff, moist, tan and brown (2.5') Clayey SILT (MH); medium stiff, moist, gray and green (5') Silty CLAY (CL); stiff, moist, red and brown (5.5') Boring terminated 18.0 11.6 5.8 0 5 10 15 Client: Project: Address: ACO.002 Harrelson Ford 6500 South Boulevard, Charlotte, NC NOTES: Borehole cleared to 5' bgs using a hand auger generated using GroundLogs.online BORING LOG Boring No. Page: SB-9 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/17/2022 2/17/2022 Mid-South Direct Push GeoProbe DT54 Loryn Smith Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 10.0 3.25 Grab DEPTH (ft)LITHOLOGYWATER LEVELBORINGCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 GR GR 1.50 (0') Asphalt (0.5') Clayey SILT (MH); trace fine-medium sand, medium stiff, moist, tan, brown, and red (2.5') Clayey SILT (MH); trace fine-medium sand, medium stiff, moist, red (4.5') Clayey SILT (MH); stiff, moist, orange and red (5') Clayey SILT (MH); stiff, moist, light tan with orange mottling (6.5') Clayey SILT (MH); medium stiff, moist, dark brown, red, and orange (7') Sandy SILT (ML); soft, moist, orange, red, and tan (10') Boring terminated 1.4 1.1 1.6 1.6 1.3 2.0 1.8 2.0 2.3 1.9 SB-9 0 5 10 15 Client: Project: Address: ACO.002 Harrelson Ford 6500 South Boulevard, Charlotte, NC Appendix B Laboratory Analytical Report   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   3/1/2022 Hart & Hickman (Charlotte) Haley Martin 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 22-048-0004 Client Project Description: ACO-002 Dear Haley Martin: Waypoint Analytical, LLC (Charlotte) received sample(s) on 2/17/2022 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 56 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202237735State ProgramNorth Carolina 12/31/2022402State ProgramNorth Carolina 07/31/202299012State ProgramSouth Carolina 12/31/202199012State ProgramSouth Carolina Page 1 of 1 00016/22-048-0004 Page 2 of 56 Report Number: Sample Summary Table Client Project Description: 22-048-0004 ACO-002 Lab No Client Sample ID Matrix Date Collected Date Received Method Lab ID 02/17/2022 11:20Solids 94336 SB-9(6-7)02/17/2022 11:55 7199 02/17/2022 11:20Solids 94336 SB-9(6-7)02/17/2022 11:55 02/17/2022Solids 94337 SB-DUP 02/17/2022 11:55 7199 02/17/2022Solids 94337 SB-DUP 02/17/2022 11:55 : Eurofins Eaton Analytical, Inc. - PA Lab, Lancaster, PA Page 3 of 56 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-048-0004 Report Limit Project:ACO-002 V 94336SB-9(6-7) 1.86 02/21/2022 19:126020BArsenicmg/Kg - dry 0.172 19.4 02/21/2022 19:126020BBariummg/Kg - dry 1.76 70.1 02/21/2022 19:126020BChromiummg/Kg - dry 0.248 12.0 02/21/2022 19:126020BLeadmg/Kg - dry 0.183 J0.005 02/17/2022 16:068260DAcetonemg/Kg - dry 0.003 20.3 02/21/2022 15:35SW-DRYWT Moisture % V 94337SB-DUP 1.75 02/21/2022 18:086020BArsenicmg/Kg - dry 0.173 18.4 02/21/2022 18:086020BBariummg/Kg - dry 1.77 75.3 02/21/2022 18:086020BChromiummg/Kg - dry 0.250 12.8 02/21/2022 18:086020BLeadmg/Kg - dry 0.185 J0.004 02/17/2022 16:348260DAcetonemg/Kg - dry 0.003 21.0 02/21/2022 15:35SW-DRYWT Moisture % Page 4 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-9(6-7) 94336 Matrix: 2/17/2022 11:20 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 20.3 %Moisture 1 02/21/22 15:35 SW-DRYWTTJW 1.86 mg/Kg - dry 0.172 1.25Arsenic 10 02/21/22 19:12 6020BEDV 19.4 mg/Kg - dry 1.76 12.5Barium 10 02/21/22 19:12 6020BEDV <0.0828 mg/Kg - dry 0.0828 0.627Cadmium 10 02/21/22 19:12 6020BEDV 70.1 mg/Kg - dry 0.248 1.25Chromium 10 02/21/22 19:12 6020BEDV 12.0 mg/Kg - dry 0.183 1.25 Lead 10 02/21/22 19:12 6020BEDV <0.0151 mg/Kg - dry 0.0151 0.0376Mercury (Total)1 02/22/22 15:04 7471BEDV <0.929 mg/Kg - dry 0.929 2.51Selenium 10 02/22/22 13:59 6020BEDV <0.0589 mg/Kg - dry 0.0589 0.627Silver 10 02/21/22 19:12 6020BEDV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 5 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-9(6-7) 94336 Matrix: 2/17/2022 11:20 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 LOW 8260D Prep Batch(es):V15100 02/17/22 08:00 0.005 J mg/Kg - dry 0.003 0.025Acetone 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.025Acrolein 1 02/17/22 16:06 V15101TBL <0.0009 mg/Kg - dry 0.0009 0.025Acrylonitrile 1 02/17/22 16:06 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006Benzene 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006Bromobenzene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Bromochloromethane 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Bromodichloromethane 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Bromoform 1 02/17/22 16:06 V15101TBL <0.002 mg/Kg - dry 0.002 0.012 Bromomethane 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006n-Butylbenzene 1 02/17/22 16:06 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006sec-Butyl benzene 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006tert-Butyl benzene 1 02/17/22 16:06 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.006Carbon Disulfide 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Carbon Tetrachloride 1 02/17/22 16:06 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.006Chlorobenzene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006 Chlorodibromomethane 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.012Chloroethane 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Chloroform 1 02/17/22 16:06 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.012Chloromethane 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.0062-Chlorotoluene 1 02/17/22 16:06 V15101TBL <0.0005 mg/Kg - dry 0.0005 0.0064-Chlorotoluene 1 02/17/22 16:06 V15101TBL <0.0009 mg/Kg - dry 0.0009 0.006Di-Isopropyl Ether (DIPE)1 02/17/22 16:06 V15101TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 6 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-9(6-7) 94336 Matrix: 2/17/2022 11:20 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 LOW 8260D Prep Batch(es):V15100 02/17/22 08:00 <0.0006 mg/Kg - dry 0.0006 0.0121,2-Dibromo-3-Chloropropane 1 02/17/22 16:06 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.0061,2-Dibromoethane 1 02/17/22 16:06 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006Dibromomethane 1 02/17/22 16:06 V15101TBL <0.0004 mg/Kg - dry 0.0004 0.0061,2-Dichlorobenzene 1 02/17/22 16:06 V15101TBL <0.0005 mg/Kg - dry 0.0005 0.0061,3-Dichlorobenzene 1 02/17/22 16:06 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.0061,4-Dichlorobenzene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.012Dichlorodifluoromethane 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.0061,1-Dichloroethane 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006 1,2-Dichloroethane 1 02/17/22 16:06 V15101TBL <0.0009 mg/Kg - dry 0.0009 0.0061,1-Dichloroethene 1 02/17/22 16:06 V15101TBL <0.0010 mg/Kg - dry 0.0010 0.006cis-1,2-Dichloroethene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006trans-1,2-Dichloroethene 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.0061,2-Dichloropropane 1 02/17/22 16:06 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.0061,3-Dichloropropane 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.0062,2-Dichloropropane 1 02/17/22 16:06 V15101TBL <0.0010 mg/Kg - dry 0.0010 0.006 1,1-Dichloropropene 1 02/17/22 16:06 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006cis-1,3-Dichloropropene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006trans-1,3-Dichloropropene 1 02/17/22 16:06 V15101TBL <0.017 mg/Kg - dry 0.017 0.313Ethanol 1 02/17/22 16:06 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006Ethylbenzene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.062Ethyl Tertiary Butyl Ether (ETBE)1 02/17/22 16:06 V15101TBL <0.0010 mg/Kg - dry 0.0010 0.012Hexachlorobutadiene 1 02/17/22 16:06 V15101TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 7 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-9(6-7) 94336 Matrix: 2/17/2022 11:20 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 LOW 8260D Prep Batch(es):V15100 02/17/22 08:00 <0.0008 mg/Kg - dry 0.0008 0.012n-Hexane 1 02/17/22 16:06 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.0252-Hexanone 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006Isopropylbenzene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.0064-Isopropyl toluene 1 02/17/22 16:06 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.025Methyl Ethyl Ketone (MEK)1 02/17/22 16:06 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.006Methyl tert-butyl ether (MTBE)1 02/17/22 16:06 V15101TBL <0.018 mg/Kg - dry 0.018 0.0254-Methyl-2-Pentanone 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.012Methylene Chloride 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.012 Naphthalene 1 02/17/22 16:06 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006n-Propylbenzene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Styrene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.0061,1,1,2-Tetrachloroethane 1 02/17/22 16:06 V15101TBL <0.0004 mg/Kg - dry 0.0004 0.0061,1,2,2-Tetrachloroethane 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Tetrachloroethene 1 02/17/22 16:06 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.006Toluene 1 02/17/22 16:06 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.012 1,2,3-Trichlorobenzene 1 02/17/22 16:06 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.0121,2,4-Trichlorobenzene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.0061,1,1-Trichloroethane 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.0061,1,2-Trichloroethane 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Trichloroethene 1 02/17/22 16:06 V15101TBL <0.002 mg/Kg - dry 0.002 0.012Trichlorofluoromethane 1 02/17/22 16:06 V15101TBL <0.0009 mg/Kg - dry 0.0009 0.0061,2,3-Trichloropropane 1 02/17/22 16:06 V15101TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 8 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-9(6-7) 94336 Matrix: 2/17/2022 11:20 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 LOW 8260D Prep Batch(es):V15100 02/17/22 08:00 <0.0006 mg/Kg - dry 0.0006 0.0061,2,4-Trimethylbenzene 1 02/17/22 16:06 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.0061,3,5-Trimethylbenzene 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.012Vinyl Acetate 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.012Vinyl Chloride 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006o-Xylene 1 02/17/22 16:06 V15101TBL <0.001 mg/Kg - dry 0.001 0.012m,p-Xylene 1 02/17/22 16:06 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006Xylene (Total)1 02/17/22 16:06 V15101 Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%02/17/22 16:061 TBL V15101 Surrogate: Dibromofluoromethane 101 Limits: 84-123%02/17/22 16:061 TBL V15101 Surrogate: Toluene-d8 98.0 Limits: 76-129%02/17/22 16:061 TBL V15101 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V15151 02/21/22 08:35 <0.145 mg/Kg - dry 0.145 0.829Acenaphthene 1 02/21/22 19:22 V15214JMV <0.131 mg/Kg - dry 0.131 0.829Acenaphthylene 1 02/21/22 19:22 V15214JMV <0.190 mg/Kg - dry 0.190 0.829Aniline 1 02/21/22 19:22 V15214JMV <0.179 mg/Kg - dry 0.179 0.829Anthracene 1 02/21/22 19:22 V15214JMV <0.174 mg/Kg - dry 0.174 0.829 Benzo(a)anthracene 1 02/21/22 19:22 V15214JMV <0.184 mg/Kg - dry 0.184 0.829Benzo(a)pyrene 1 02/21/22 19:22 V15214JMV <0.183 mg/Kg - dry 0.183 0.829Benzo(b)fluoranthene 1 02/21/22 19:22 V15214JMV <0.170 mg/Kg - dry 0.170 0.829Benzo(g,h,i)perylene 1 02/21/22 19:22 V15214JMV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 9 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-9(6-7) 94336 Matrix: 2/17/2022 11:20 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V15151 02/21/22 08:35 <0.171 mg/Kg - dry 0.171 0.829Benzo(k)fluoranthene 1 02/21/22 19:22 V15214JMV <0.727 mg/Kg - dry 0.727 2.51Benzoic Acid 1 02/21/22 19:22 V15214JMV <0.131 mg/Kg - dry 0.131 0.829Benzyl alcohol 1 02/21/22 19:22 V15214JMV <0.148 mg/Kg - dry 0.148 0.829Bis(2-Chloroethoxy)methane 1 02/21/22 19:22 V15214JMV <0.134 mg/Kg - dry 0.134 0.829Bis(2-Chloroethyl)ether 1 02/21/22 19:22 V15214JMV <0.170 mg/Kg - dry 0.170 0.414Bis(2-Chloroisopropyl)ether 1 02/21/22 19:22 V15214JMV <0.150 mg/Kg - dry 0.150 0.829Bis(2-ethylhexyl)phthalate 1 02/21/22 19:22 V15214JMV <0.136 mg/Kg - dry 0.136 0.8294-Bromophenyl phenyl ether 1 02/21/22 19:22 V15214JMV <0.141 mg/Kg - dry 0.141 0.414 Butyl benzyl phthalate 1 02/21/22 19:22 V15214JMV <0.116 mg/Kg - dry 0.116 0.8294-Chloro-3-methylphenol 1 02/21/22 19:22 V15214JMV <0.140 mg/Kg - dry 0.140 0.4144-Chloroaniline 1 02/21/22 19:22 V15214JMV <0.145 mg/Kg - dry 0.145 0.8292-Chloronaphthalene 1 02/21/22 19:22 V15214JMV <0.123 mg/Kg - dry 0.123 0.8292-Chlorophenol 1 02/21/22 19:22 V15214JMV <0.158 mg/Kg - dry 0.158 1.254-Chlorophenyl phenyl ether 1 02/21/22 19:22 V15214JMV <0.178 mg/Kg - dry 0.178 0.829Chrysene 1 02/21/22 19:22 V15214JMV <0.288 mg/Kg - dry 0.288 0.829 Dibenz(a,h)anthracene 1 02/21/22 19:22 V15214JMV <0.149 mg/Kg - dry 0.149 0.829Dibenzofuran 1 02/21/22 19:22 V15214JMV <0.118 mg/Kg - dry 0.118 0.8291,2-Dichlorobenzene 1 02/21/22 19:22 V15214JMV <0.122 mg/Kg - dry 0.122 0.8291,3-Dichlorobenzene 1 02/21/22 19:22 V15214JMV <0.122 mg/Kg - dry 0.122 0.4141,4-Dichlorobenzene 1 02/21/22 19:22 V15214JMV <0.184 mg/Kg - dry 0.184 0.8293,3'-Dichlorobenzidine 1 02/21/22 19:22 V15214JMV <0.120 mg/Kg - dry 0.120 0.8292,4-Dichlorophenol 1 02/21/22 19:22 V15214JMV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 10 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-9(6-7) 94336 Matrix: 2/17/2022 11:20 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V15151 02/21/22 08:35 <0.225 mg/Kg - dry 0.225 0.829Diethyl phthalate 1 02/21/22 19:22 V15214JMV <0.218 mg/Kg - dry 0.218 0.829Dimethyl phthalate 1 02/21/22 19:22 V15214JMV <0.135 mg/Kg - dry 0.135 0.4142,4-Dimethylphenol 1 02/21/22 19:22 V15214JMV <0.134 mg/Kg - dry 0.134 0.829Di-n-butyl phthalate 1 02/21/22 19:22 V15214JMV <0.301 mg/Kg - dry 0.301 1.884,6-Dinitro-2-methylphenol 1 02/21/22 19:22 V15214JMV <0.652 mg/Kg - dry 0.652 1.882,4-Dinitrophenol 1 02/21/22 19:22 V15214JMV <0.121 mg/Kg - dry 0.121 0.8292,4-Dinitrotoluene 1 02/21/22 19:22 V15214JMV <0.135 mg/Kg - dry 0.135 0.8292,6-Dinitrotoluene 1 02/21/22 19:22 V15214JMV <0.179 mg/Kg - dry 0.179 0.414 Di-n-Octyl Phthalate 1 02/21/22 19:22 V15214JMV <0.154 mg/Kg - dry 0.154 0.829Fluoranthene 1 02/21/22 19:22 V15214JMV <0.160 mg/Kg - dry 0.160 0.829Fluorene 1 02/21/22 19:22 V15214JMV <0.132 mg/Kg - dry 0.132 0.829Hexachlorobenzene 1 02/21/22 19:22 V15214JMV <0.122 mg/Kg - dry 0.122 0.829Hexachlorobutadiene 1 02/21/22 19:22 V15214JMV <0.196 mg/Kg - dry 0.196 0.829Hexachlorocyclopentadiene 1 02/21/22 19:22 V15214JMV <0.099 mg/Kg - dry 0.099 0.829Hexachloroethane 1 02/21/22 19:22 V15214JMV <0.224 mg/Kg - dry 0.224 0.829 Indeno(1,2,3-cd)pyrene 1 02/21/22 19:22 V15214JMV <0.239 mg/Kg - dry 0.239 0.829Isophorone 1 02/21/22 19:22 V15214JMV <0.132 mg/Kg - dry 0.132 0.8291-Methylnaphthalene 1 02/21/22 19:22 V15214JMV <0.125 mg/Kg - dry 0.125 0.8292-Methylnaphthalene 1 02/21/22 19:22 V15214JMV <0.121 mg/Kg - dry 0.121 0.8292-Methylphenol 1 02/21/22 19:22 V15214JMV <0.106 mg/Kg - dry 0.106 0.8293&4 Methylphenol 1 02/21/22 19:22 V15214JMV <0.180 mg/Kg - dry 0.180 0.829Naphthalene 1 02/21/22 19:22 V15214JMV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 11 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-9(6-7) 94336 Matrix: 2/17/2022 11:20 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V15151 02/21/22 08:35 <0.121 mg/Kg - dry 0.121 0.8292-Nitroaniline 1 02/21/22 19:22 V15214JMV <0.150 mg/Kg - dry 0.150 0.8293-Nitroaniline 1 02/21/22 19:22 V15214JMV <0.117 mg/Kg - dry 0.117 0.4144-Nitroaniline 1 02/21/22 19:22 V15214JMV <0.145 mg/Kg - dry 0.145 0.414Nitrobenzene 1 02/21/22 19:22 V15214JMV <0.111 mg/Kg - dry 0.111 0.8292-Nitrophenol 1 02/21/22 19:22 V15214JMV <0.146 mg/Kg - dry 0.146 0.8294-Nitrophenol 1 02/21/22 19:22 V15214JMV <0.329 mg/Kg - dry 0.329 0.829N-Nitrosodimethylamine 1 02/21/22 19:22 V15214JMV <0.227 mg/Kg - dry 0.227 0.829N-Nitrosodiphenylamine 1 02/21/22 19:22 V15214JMV <0.148 mg/Kg - dry 0.148 0.829 N-Nitroso-di-n-propylamine 1 02/21/22 19:22 V15214JMV <0.435 mg/Kg - dry 0.435 1.25Pentachlorophenol 1 02/21/22 19:22 V15214JMV <0.260 mg/Kg - dry 0.260 0.829Phenanthrene 1 02/21/22 19:22 V15214JMV <0.140 mg/Kg - dry 0.140 0.829Phenol 1 02/21/22 19:22 V15214JMV <0.168 mg/Kg - dry 0.168 0.829Pyrene 1 02/21/22 19:22 V15214JMV <0.099 mg/Kg - dry 0.099 0.414Pyridine 1 02/21/22 19:22 V15214JMV <0.134 mg/Kg - dry 0.134 0.8291,2,4-Trichlorobenzene 1 02/21/22 19:22 V15214JMV <0.120 mg/Kg - dry 0.120 0.829 2,4,5-Trichlorophenol 1 02/21/22 19:22 V15214JMV <0.121 mg/Kg - dry 0.121 0.8292,4,6-Trichlorophenol 1 02/21/22 19:22 V15214JMV 8270ESurrogate: Phenol-d5 101 Limits: 34-121%02/21/22 19:221 JMV Surrogate: 2-Fluorobiphenyl 71.9 Limits: 44-115%02/21/22 19:221 JMV V15214 Surrogate: 2-Fluorophenol 91.3 Limits: 35-115%02/21/22 19:221 JMV V15214 Surrogate: Nitrobenzene-d5 67.1 Limits: 37-122%02/21/22 19:221 JMV V15214 Surrogate: 4-Terphenyl-d14 81.4 Limits: 54-127%02/21/22 19:221 JMV V15214 Surrogate: 2,4,6-Tribromophenol 78.4 Limits: 39-132%02/21/22 19:221 JMV V15214 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 12 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-DUP 94337 Matrix: 2/17/2022 0:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 21.0 %Moisture 1 02/21/22 15:35 SW-DRYWTTJW 1.75 mg/Kg - dry 0.173 1.27Arsenic 10 02/21/22 18:08 6020BEDV 18.4 mg/Kg - dry 1.77 12.7Barium 10 02/21/22 18:08 6020BEDV <0.0835 mg/Kg - dry 0.0835 0.633Cadmium 10 02/21/22 18:08 6020BEDV 75.3 mg/Kg - dry 0.250 1.27Chromium 10 02/21/22 18:08 6020BEDV 12.8 mg/Kg - dry 0.185 1.27 Lead 10 02/21/22 18:08 6020BEDV <0.0152 mg/Kg - dry 0.0152 0.0380Mercury (Total)1 02/22/22 15:20 7471BEDV <0.937 mg/Kg - dry 0.937 2.53Selenium 10 02/22/22 13:52 6020BEDV <0.0594 mg/Kg - dry 0.0594 0.633Silver 10 02/21/22 18:08 6020BEDV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 13 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-DUP 94337 Matrix: 2/17/2022 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 LOW 8260D Prep Batch(es):V15100 02/17/22 08:00 0.004 J mg/Kg - dry 0.003 0.025Acetone 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.025Acrolein 1 02/17/22 16:34 V15101TBL <0.0009 mg/Kg - dry 0.0009 0.025Acrylonitrile 1 02/17/22 16:34 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006Benzene 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006Bromobenzene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Bromochloromethane 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Bromodichloromethane 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Bromoform 1 02/17/22 16:34 V15101TBL <0.002 mg/Kg - dry 0.002 0.012 Bromomethane 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006n-Butylbenzene 1 02/17/22 16:34 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006sec-Butyl benzene 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006tert-Butyl benzene 1 02/17/22 16:34 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.006Carbon Disulfide 1 02/17/22 16:34 V15101TBL <0.002 mg/Kg - dry 0.002 0.006Carbon Tetrachloride 1 02/17/22 16:34 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.006Chlorobenzene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006 Chlorodibromomethane 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.012Chloroethane 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Chloroform 1 02/17/22 16:34 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.012Chloromethane 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.0062-Chlorotoluene 1 02/17/22 16:34 V15101TBL <0.0005 mg/Kg - dry 0.0005 0.0064-Chlorotoluene 1 02/17/22 16:34 V15101TBL <0.0009 mg/Kg - dry 0.0009 0.006Di-Isopropyl Ether (DIPE)1 02/17/22 16:34 V15101TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 14 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-DUP 94337 Matrix: 2/17/2022 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 LOW 8260D Prep Batch(es):V15100 02/17/22 08:00 <0.0006 mg/Kg - dry 0.0006 0.0121,2-Dibromo-3-Chloropropane 1 02/17/22 16:34 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.0061,2-Dibromoethane 1 02/17/22 16:34 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006Dibromomethane 1 02/17/22 16:34 V15101TBL <0.0004 mg/Kg - dry 0.0004 0.0061,2-Dichlorobenzene 1 02/17/22 16:34 V15101TBL <0.0005 mg/Kg - dry 0.0005 0.0061,3-Dichlorobenzene 1 02/17/22 16:34 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.0061,4-Dichlorobenzene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.012Dichlorodifluoromethane 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.0061,1-Dichloroethane 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006 1,2-Dichloroethane 1 02/17/22 16:34 V15101TBL <0.0009 mg/Kg - dry 0.0009 0.0061,1-Dichloroethene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006cis-1,2-Dichloroethene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006trans-1,2-Dichloroethene 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.0061,2-Dichloropropane 1 02/17/22 16:34 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.0061,3-Dichloropropane 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.0062,2-Dichloropropane 1 02/17/22 16:34 V15101TBL <0.0010 mg/Kg - dry 0.0010 0.006 1,1-Dichloropropene 1 02/17/22 16:34 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006cis-1,3-Dichloropropene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006trans-1,3-Dichloropropene 1 02/17/22 16:34 V15101TBL <0.017 mg/Kg - dry 0.017 0.316Ethanol 1 02/17/22 16:34 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006Ethylbenzene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.063Ethyl Tertiary Butyl Ether (ETBE)1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.012Hexachlorobutadiene 1 02/17/22 16:34 V15101TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 15 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-DUP 94337 Matrix: 2/17/2022 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 LOW 8260D Prep Batch(es):V15100 02/17/22 08:00 <0.0008 mg/Kg - dry 0.0008 0.012n-Hexane 1 02/17/22 16:34 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.0252-Hexanone 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006Isopropylbenzene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.0064-Isopropyl toluene 1 02/17/22 16:34 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.025Methyl Ethyl Ketone (MEK)1 02/17/22 16:34 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.006Methyl tert-butyl ether (MTBE)1 02/17/22 16:34 V15101TBL <0.018 mg/Kg - dry 0.018 0.0254-Methyl-2-Pentanone 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.012Methylene Chloride 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.012 Naphthalene 1 02/17/22 16:34 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.006n-Propylbenzene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Styrene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.0061,1,1,2-Tetrachloroethane 1 02/17/22 16:34 V15101TBL <0.0004 mg/Kg - dry 0.0004 0.0061,1,2,2-Tetrachloroethane 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Tetrachloroethene 1 02/17/22 16:34 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.006Toluene 1 02/17/22 16:34 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.012 1,2,3-Trichlorobenzene 1 02/17/22 16:34 V15101TBL <0.0008 mg/Kg - dry 0.0008 0.0121,2,4-Trichlorobenzene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.0061,1,1-Trichloroethane 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.0061,1,2-Trichloroethane 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.006Trichloroethene 1 02/17/22 16:34 V15101TBL <0.002 mg/Kg - dry 0.002 0.012Trichlorofluoromethane 1 02/17/22 16:34 V15101TBL <0.0009 mg/Kg - dry 0.0009 0.0061,2,3-Trichloropropane 1 02/17/22 16:34 V15101TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 16 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-DUP 94337 Matrix: 2/17/2022 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 LOW 8260D Prep Batch(es):V15100 02/17/22 08:00 <0.0006 mg/Kg - dry 0.0006 0.0061,2,4-Trimethylbenzene 1 02/17/22 16:34 V15101TBL <0.0007 mg/Kg - dry 0.0007 0.0061,3,5-Trimethylbenzene 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.012Vinyl Acetate 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.012Vinyl Chloride 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006o-Xylene 1 02/17/22 16:34 V15101TBL <0.001 mg/Kg - dry 0.001 0.012m,p-Xylene 1 02/17/22 16:34 V15101TBL <0.0006 mg/Kg - dry 0.0006 0.006Xylene (Total)1 02/17/22 16:34 V15101 Surrogate: 4-Bromofluorobenzene 99.5 Limits: 70-130%02/17/22 16:341 TBL V15101 Surrogate: Dibromofluoromethane 101 Limits: 84-123%02/17/22 16:341 TBL V15101 Surrogate: Toluene-d8 98.4 Limits: 76-129%02/17/22 16:341 TBL V15101 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V15151 02/21/22 08:35 <0.146 mg/Kg - dry 0.146 0.835Acenaphthene 1 02/21/22 19:44 V15214JMV <0.132 mg/Kg - dry 0.132 0.835Acenaphthylene 1 02/21/22 19:44 V15214JMV <0.192 mg/Kg - dry 0.192 0.835Aniline 1 02/21/22 19:44 V15214JMV <0.181 mg/Kg - dry 0.181 0.835Anthracene 1 02/21/22 19:44 V15214JMV <0.175 mg/Kg - dry 0.175 0.835 Benzo(a)anthracene 1 02/21/22 19:44 V15214JMV <0.186 mg/Kg - dry 0.186 0.835Benzo(a)pyrene 1 02/21/22 19:44 V15214JMV <0.184 mg/Kg - dry 0.184 0.835Benzo(b)fluoranthene 1 02/21/22 19:44 V15214JMV <0.172 mg/Kg - dry 0.172 0.835Benzo(g,h,i)perylene 1 02/21/22 19:44 V15214JMV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 17 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-DUP 94337 Matrix: 2/17/2022 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V15151 02/21/22 08:35 <0.173 mg/Kg - dry 0.173 0.835Benzo(k)fluoranthene 1 02/21/22 19:44 V15214JMV <0.734 mg/Kg - dry 0.734 2.53Benzoic Acid 1 02/21/22 19:44 V15214JMV <0.132 mg/Kg - dry 0.132 0.835Benzyl alcohol 1 02/21/22 19:44 V15214JMV <0.149 mg/Kg - dry 0.149 0.835Bis(2-Chloroethoxy)methane 1 02/21/22 19:44 V15214JMV <0.135 mg/Kg - dry 0.135 0.835Bis(2-Chloroethyl)ether 1 02/21/22 19:44 V15214JMV <0.172 mg/Kg - dry 0.172 0.417Bis(2-Chloroisopropyl)ether 1 02/21/22 19:44 V15214JMV <0.151 mg/Kg - dry 0.151 0.835Bis(2-ethylhexyl)phthalate 1 02/21/22 19:44 V15214JMV <0.137 mg/Kg - dry 0.137 0.8354-Bromophenyl phenyl ether 1 02/21/22 19:44 V15214JMV <0.143 mg/Kg - dry 0.143 0.417 Butyl benzyl phthalate 1 02/21/22 19:44 V15214JMV <0.116 mg/Kg - dry 0.116 0.8354-Chloro-3-methylphenol 1 02/21/22 19:44 V15214JMV <0.141 mg/Kg - dry 0.141 0.4174-Chloroaniline 1 02/21/22 19:44 V15214JMV <0.146 mg/Kg - dry 0.146 0.8352-Chloronaphthalene 1 02/21/22 19:44 V15214JMV <0.124 mg/Kg - dry 0.124 0.8352-Chlorophenol 1 02/21/22 19:44 V15214JMV <0.159 mg/Kg - dry 0.159 1.274-Chlorophenyl phenyl ether 1 02/21/22 19:44 V15214JMV <0.179 mg/Kg - dry 0.179 0.835Chrysene 1 02/21/22 19:44 V15214JMV <0.291 mg/Kg - dry 0.291 0.835 Dibenz(a,h)anthracene 1 02/21/22 19:44 V15214JMV <0.150 mg/Kg - dry 0.150 0.835Dibenzofuran 1 02/21/22 19:44 V15214JMV <0.119 mg/Kg - dry 0.119 0.8351,2-Dichlorobenzene 1 02/21/22 19:44 V15214JMV <0.123 mg/Kg - dry 0.123 0.8351,3-Dichlorobenzene 1 02/21/22 19:44 V15214JMV <0.123 mg/Kg - dry 0.123 0.4171,4-Dichlorobenzene 1 02/21/22 19:44 V15214JMV <0.186 mg/Kg - dry 0.186 0.8353,3'-Dichlorobenzidine 1 02/21/22 19:44 V15214JMV <0.121 mg/Kg - dry 0.121 0.8352,4-Dichlorophenol 1 02/21/22 19:44 V15214JMV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 18 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-DUP 94337 Matrix: 2/17/2022 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V15151 02/21/22 08:35 <0.227 mg/Kg - dry 0.227 0.835Diethyl phthalate 1 02/21/22 19:44 V15214JMV <0.220 mg/Kg - dry 0.220 0.835Dimethyl phthalate 1 02/21/22 19:44 V15214JMV <0.136 mg/Kg - dry 0.136 0.4172,4-Dimethylphenol 1 02/21/22 19:44 V15214JMV <0.135 mg/Kg - dry 0.135 0.835Di-n-butyl phthalate 1 02/21/22 19:44 V15214JMV <0.303 mg/Kg - dry 0.303 1.904,6-Dinitro-2-methylphenol 1 02/21/22 19:44 V15214JMV <0.658 mg/Kg - dry 0.658 1.902,4-Dinitrophenol 1 02/21/22 19:44 V15214JMV <0.122 mg/Kg - dry 0.122 0.8352,4-Dinitrotoluene 1 02/21/22 19:44 V15214JMV <0.136 mg/Kg - dry 0.136 0.8352,6-Dinitrotoluene 1 02/21/22 19:44 V15214JMV <0.181 mg/Kg - dry 0.181 0.417 Di-n-Octyl Phthalate 1 02/21/22 19:44 V15214JMV <0.155 mg/Kg - dry 0.155 0.835Fluoranthene 1 02/21/22 19:44 V15214JMV <0.162 mg/Kg - dry 0.162 0.835Fluorene 1 02/21/22 19:44 V15214JMV <0.134 mg/Kg - dry 0.134 0.835Hexachlorobenzene 1 02/21/22 19:44 V15214JMV <0.123 mg/Kg - dry 0.123 0.835Hexachlorobutadiene 1 02/21/22 19:44 V15214JMV <0.198 mg/Kg - dry 0.198 0.835Hexachlorocyclopentadiene 1 02/21/22 19:44 V15214JMV <0.100 mg/Kg - dry 0.100 0.835Hexachloroethane 1 02/21/22 19:44 V15214JMV <0.226 mg/Kg - dry 0.226 0.835 Indeno(1,2,3-cd)pyrene 1 02/21/22 19:44 V15214JMV <0.241 mg/Kg - dry 0.241 0.835Isophorone 1 02/21/22 19:44 V15214JMV <0.134 mg/Kg - dry 0.134 0.8351-Methylnaphthalene 1 02/21/22 19:44 V15214JMV <0.126 mg/Kg - dry 0.126 0.8352-Methylnaphthalene 1 02/21/22 19:44 V15214JMV <0.122 mg/Kg - dry 0.122 0.8352-Methylphenol 1 02/21/22 19:44 V15214JMV <0.107 mg/Kg - dry 0.107 0.8353&4 Methylphenol 1 02/21/22 19:44 V15214JMV <0.182 mg/Kg - dry 0.182 0.835Naphthalene 1 02/21/22 19:44 V15214JMV Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 19 of 56 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-048-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte Received : 02/17/2022 ACO-002 Report Date : 03/01/2022 Sample ID : Lab No : Sampled:SB-DUP 94337 Matrix: 2/17/2022 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V15151 02/21/22 08:35 <0.122 mg/Kg - dry 0.122 0.8352-Nitroaniline 1 02/21/22 19:44 V15214JMV <0.151 mg/Kg - dry 0.151 0.8353-Nitroaniline 1 02/21/22 19:44 V15214JMV <0.118 mg/Kg - dry 0.118 0.4174-Nitroaniline 1 02/21/22 19:44 V15214JMV <0.146 mg/Kg - dry 0.146 0.417Nitrobenzene 1 02/21/22 19:44 V15214JMV <0.112 mg/Kg - dry 0.112 0.8352-Nitrophenol 1 02/21/22 19:44 V15214JMV <0.148 mg/Kg - dry 0.148 0.8354-Nitrophenol 1 02/21/22 19:44 V15214JMV <0.332 mg/Kg - dry 0.332 0.835N-Nitrosodimethylamine 1 02/21/22 19:44 V15214JMV <0.229 mg/Kg - dry 0.229 0.835N-Nitrosodiphenylamine 1 02/21/22 19:44 V15214JMV <0.149 mg/Kg - dry 0.149 0.835 N-Nitroso-di-n-propylamine 1 02/21/22 19:44 V15214JMV <0.439 mg/Kg - dry 0.439 1.27Pentachlorophenol 1 02/21/22 19:44 V15214JMV <0.263 mg/Kg - dry 0.263 0.835Phenanthrene 1 02/21/22 19:44 V15214JMV <0.141 mg/Kg - dry 0.141 0.835Phenol 1 02/21/22 19:44 V15214JMV <0.169 mg/Kg - dry 0.169 0.835Pyrene 1 02/21/22 19:44 V15214JMV <0.100 mg/Kg - dry 0.100 0.417Pyridine 1 02/21/22 19:44 V15214JMV <0.135 mg/Kg - dry 0.135 0.8351,2,4-Trichlorobenzene 1 02/21/22 19:44 V15214JMV <0.121 mg/Kg - dry 0.121 0.835 2,4,5-Trichlorophenol 1 02/21/22 19:44 V15214JMV <0.122 mg/Kg - dry 0.122 0.8352,4,6-Trichlorophenol 1 02/21/22 19:44 V15214JMV 8270ESurrogate: Phenol-d5 73.6 Limits: 34-121%02/21/22 19:441 JMV Surrogate: 2-Fluorobiphenyl 76.6 Limits: 44-115%02/21/22 19:441 JMV V15214 Surrogate: 2-Fluorophenol 75.1 Limits: 35-115%02/21/22 19:441 JMV V15214 Surrogate: Nitrobenzene-d5 105 Limits: 37-122%02/21/22 19:441 JMV V15214 Surrogate: 4-Terphenyl-d14 80.8 Limits: 54-127%02/21/22 19:441 JMV V15214 Surrogate: 2,4,6-Tribromophenol 82.9 Limits: 39-132%02/21/22 19:441 JMV V15214 Qualifiers/ Definitions Estimated valueJDilution FactorDF Page 20 of 56 Page 21 of 56 Page 22 of 56 Page 23 of 56                                                                              Page 24 of 56                 Page 25 of 56                                  Page 26 of 56                                                             Page 27 of 56                                                                                                            Page 28 of 56                                                                                      Page 29 of 56                                                                                                                   Page 30 of 56                    Page 31 of 56                  Page 32 of 56                 Page 33 of 56 Page 34 of 56                              Page 35 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Metals Analyses 6020B V15206QC Analytical Batch(es): Analysis Method: Analysis Description: 3050B QC Prep:V15160 Associated Lab Samples: 94336, 94337 LRB-V15160 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits 02/21/22 17:551.000.137<0.137mg/KgArsenic 02/21/22 17:5510.01.40<1.40mg/KgBarium 02/21/22 17:550.5000.0660<0.0660mg/KgCadmium 02/21/22 17:551.000.198<0.198mg/KgChromium 02/21/22 17:551.000.146<0.146mg/KgLead 02/21/22 17:552.000.741<0.741mg/KgSelenium 02/21/22 17:550.5000.0470<0.0470mg/KgSilver LCS-V15160Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 92.011.512.5mg/KgArsenic 80-120 97.012.112.5mg/KgBarium 80-120 94.011.712.5mg/KgCadmium 80-120 93.011.612.5mg/KgChromium 80-120 94.011.812.5mg/KgLead 80-120 94.011.712.5mg/KgSelenium 80-120 90.04.495.00mg/KgSilver 80-120 V 94337-MS-V15160 V 94337-MSD-V15160Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 11.1 78.011.612.512.51.38mg/KgArsenic 82.0 75-125 4.4 20 28.8 11430.612.512.514.5mg/KgBarium 129*75-125 6.0 20 11.9 95.012.412.512.5<0.0660mg/KgCadmium 99.0 75-125 4.1 20 71.7 98.080.612.512.559.5mg/KgChromium 169*75-125 11.6 20 Page 1 of 19* QC Fail Date:03/01/2022 03:38 PM Page 36 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Metals Analyses 6020B V15206QC Analytical Batch(es): Analysis Method: Analysis Description: 3050B QC Prep:V15160 V 94337-MS-V15160 V 94337-MSD-V15160Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 22.0 95.023.012.512.510.1mg/KgLead 103 75-125 4.4 20 11.2 90.011.612.512.50.786mg/KgSelenium 93.0 75-125 3.5 20 4.54 91.04.725.005.00<0.0470mg/KgSilver 94.0 75-125 3.8 20 V 94337-PDS-V15160Post Digestion Spike Parameter Analyzed% Recovery PDS ResultUnits 02/21/22 18:2711014.6mg/KgArsenic 02/21/22 18:2710821.4mg/KgBarium 02/21/22 18:2711013.7mg/KgCadmium 02/21/22 18:2710443.9mg/KgChromium 02/21/22 18:2710618.7mg/KgLead 02/21/22 18:2711214.0mg/KgSelenium 02/21/22 18:2710913.6mg/KgSilver Page 2 of 19Date:03/01/2022 03:38 PM Page 37 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Solids Total Mercury Analysis - CVAA 7471B V15239QC Analytical Batch(es): Analysis Method: Analysis Description: 7471B (Prep) QC Prep:V15178 Associated Lab Samples: 94336, 94337 LRB-V15178 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits 02/22/22 14:570.03000.0120<0.0120mg/KgMercury (Total) LCS-V15178Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1060.4410.417mg/KgMercury (Total)80-120 V 94336-MS-V15178 V 94336-MSD-V15178Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 0.398 96.00.4300.4170.417<0.0120mg/KgMercury (Total)103 80-120 7.7 20 V 94336-PDS-V15178Post Digestion Spike Parameter Analyzed% Recovery PDS ResultUnits 02/22/22 15:1497.00.202mg/KgMercury (Total) Page 3 of 19Date:03/01/2022 03:38 PM Page 38 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V15101QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 LOW QC Prep:V15100 Associated Lab Samples: 94336, 94337 LRB-V15100 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/17/22 13:190.0200.002<0.002mg/KgAcetone 02/17/22 13:190.0200.001<0.001mg/KgAcrolein 02/17/22 13:190.0200.0008<0.0008mg/KgAcrylonitrile 02/17/22 13:190.0050.0006<0.0006mg/KgBenzene 02/17/22 13:190.0050.0005<0.0005mg/KgBromobenzene 02/17/22 13:190.0050.0008<0.0008mg/KgBromochloromethane 02/17/22 13:190.0050.001<0.001mg/KgBromodichloromethane 02/17/22 13:190.0050.001<0.001mg/KgBromoform 02/17/22 13:190.0100.001<0.001mg/KgBromomethane 02/17/22 13:190.0050.0005<0.0005mg/Kgn-Butylbenzene 02/17/22 13:190.0050.0006<0.0006mg/Kgsec-Butyl benzene 02/17/22 13:190.0050.0005<0.0005mg/Kgtert-Butyl benzene 02/17/22 13:190.0050.0006<0.0006mg/KgCarbon Disulfide 02/17/22 13:190.0050.001<0.001mg/KgCarbon Tetrachloride 02/17/22 13:190.0050.0007<0.0007mg/KgChlorobenzene 02/17/22 13:190.0050.0009<0.0009mg/KgChlorodibromomethane 02/17/22 13:190.0100.0009<0.0009mg/KgChloroethane 02/17/22 13:190.0050.001<0.001mg/KgChloroform 02/17/22 13:190.0100.0006<0.0006mg/KgChloromethane 02/17/22 13:190.0050.0005<0.0005mg/Kg2-Chlorotoluene 02/17/22 13:190.0050.0004<0.0004mg/Kg4-Chlorotoluene 02/17/22 13:190.0050.0007<0.0007mg/KgDi-Isopropyl Ether (DIPE) 02/17/22 13:190.0100.0004<0.0004mg/Kg1,2-Dibromo-3-Chloropropane 02/17/22 13:190.0050.0006<0.0006mg/Kg1,2-Dibromoethane 02/17/22 13:190.0050.0006<0.0006mg/KgDibromomethane 02/17/22 13:190.0050.0003<0.0003mg/Kg1,2-Dichlorobenzene 02/17/22 13:190.0050.0004<0.0004mg/Kg1,3-Dichlorobenzene Page 4 of 19Date:03/01/2022 03:38 PM Page 39 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V15101QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 LOW QC Prep:V15100 Associated Lab Samples: 94336, 94337 LRB-V15100 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/17/22 13:190.0050.0006<0.0006mg/Kg1,4-Dichlorobenzene 02/17/22 13:190.0100.001<0.001mg/KgDichlorodifluoromethane 02/17/22 13:190.0050.0008<0.0008mg/Kg1,1-Dichloroethane 02/17/22 13:190.0050.001<0.001mg/Kg1,2-Dichloroethane 02/17/22 13:190.0050.0007<0.0007mg/Kg1,1-Dichloroethene 02/17/22 13:190.0050.0008<0.0008mg/Kgcis-1,2-Dichloroethene 02/17/22 13:190.0050.001<0.001mg/Kgtrans-1,2-Dichloroethene 02/17/22 13:190.0050.0004<0.0004mg/Kg1,2-Dichloropropane 02/17/22 13:190.0050.0006<0.0006mg/Kg1,3-Dichloropropane 02/17/22 13:190.0050.001<0.001mg/Kg2,2-Dichloropropane 02/17/22 13:190.0050.0008<0.0008mg/Kg1,1-Dichloropropene 02/17/22 13:190.0050.0005<0.0005mg/Kgcis-1,3-Dichloropropene 02/17/22 13:190.0050.0008<0.0008mg/Kgtrans-1,3-Dichloropropene 02/17/22 13:190.2500.014<0.014mg/KgEthanol 02/17/22 13:190.0050.0006<0.0006mg/KgEthylbenzene 02/17/22 13:190.0500.0008<0.0008mg/KgEthyl Tertiary Butyl Ether (ETBE) 02/17/22 13:190.0100.0008<0.0008mg/KgHexachlorobutadiene 02/17/22 13:190.0100.0007<0.0007mg/Kgn-Hexane 02/17/22 13:190.0200.0006<0.0006mg/Kg2-Hexanone 02/17/22 13:190.0050.0005<0.0005mg/KgIsopropylbenzene 02/17/22 13:190.0050.001<0.001mg/Kg4-Isopropyl toluene 02/17/22 13:190.0200.0007<0.0007mg/KgMethyl Ethyl Ketone (MEK) 02/17/22 13:190.0050.0006<0.0006mg/KgMethyl tert-butyl ether (MTBE) 02/17/22 13:190.0200.015<0.015mg/Kg4-Methyl-2-Pentanone 02/17/22 13:190.0100.001<0.001mg/KgMethylene Chloride 02/17/22 13:190.0100.0010<0.0010mg/KgNaphthalene 02/17/22 13:190.0050.0005<0.0005mg/Kgn-Propylbenzene Page 5 of 19Date:03/01/2022 03:38 PM Page 40 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V15101QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 LOW QC Prep:V15100 Associated Lab Samples: 94336, 94337 LRB-V15100 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/17/22 13:190.0050.001<0.001mg/KgStyrene 02/17/22 13:190.0050.001<0.001mg/Kg1,1,1,2-Tetrachloroethane 02/17/22 13:190.0050.0003<0.0003mg/Kg1,1,2,2-Tetrachloroethane 02/17/22 13:190.0050.0009<0.0009mg/KgTetrachloroethene 02/17/22 13:190.0050.0007<0.0007mg/KgToluene 02/17/22 13:190.0100.0005<0.0005mg/Kg1,2,3-Trichlorobenzene 02/17/22 13:190.0100.0006<0.0006mg/Kg1,2,4-Trichlorobenzene 02/17/22 13:190.0050.001<0.001mg/Kg1,1,1-Trichloroethane 02/17/22 13:190.0050.0005<0.0005mg/Kg1,1,2-Trichloroethane 02/17/22 13:190.0050.0009<0.0009mg/KgTrichloroethene 02/17/22 13:190.0100.002<0.002mg/KgTrichlorofluoromethane 02/17/22 13:190.0050.0007<0.0007mg/Kg1,2,3-Trichloropropane 02/17/22 13:190.0050.0005<0.0005mg/Kg1,2,4-Trimethylbenzene 02/17/22 13:190.0050.0005<0.0005mg/Kg1,3,5-Trimethylbenzene 02/17/22 13:190.0100.0005<0.0005mg/KgVinyl Acetate 02/17/22 13:190.0100.0005<0.0005mg/KgVinyl Chloride 02/17/22 13:190.0050.0005<0.0005mg/Kgo-Xylene 02/17/22 13:190.0100.001<0.001mg/Kgm,p-Xylene 02/17/22 13:194-Bromofluorobenzene (S)101 70-130 02/17/22 13:19Dibromofluoromethane (S)99.2 84-123 02/17/22 13:19Toluene-d8 (S)99.0 76-129 LCS-V15100 LCSD-V15100Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.081 81.083.30.0830.100mg/KgAcetone 29-198 2.7 20 Page 6 of 19Date:03/01/2022 03:38 PM Page 41 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V15101QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 LOW QC Prep:V15100 LCS-V15100 LCSD-V15100Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.089 89.290.10.0900.100mg/KgAcrolein 70-130 1.0 20 0.090 90.991.00.0910.100mg/KgAcrylonitrile 65-134 0.1 20 0.045 90.294.20.0470.050mg/KgBenzene 74-127 4.3 20 0.044 89.691.80.0450.050mg/KgBromobenzene 73-125 2.4 20 0.047 94.495.00.0470.050mg/KgBromochloromethane 72-134 0.6 20 0.047 94.696.40.0480.050mg/KgBromodichloromethane 75-122 1.8 20 0.048 96.496.80.0480.050mg/KgBromoform 66-135 0.4 20 0.049 99.61050.0520.050mg/KgBromomethane 20-180 5.6 20 0.043 87.091.60.0450.050mg/Kgn-Butylbenzene 65-135 5.1 20 0.043 86.289.60.0440.050mg/Kgsec-Butyl benzene 66-131 3.8 20 0.042 85.088.80.0440.050mg/Kgtert-Butyl benzene 67-132 4.3 20 0.042 84.087.60.0430.050mg/KgCarbon Disulfide 61-129 4.1 20 0.037 74.680.40.0400.050mg/KgCarbon Tetrachloride 64-143 7.4 20 0.046 92.294.20.0470.050mg/KgChlorobenzene 74-118 2.1 20 0.047 95.896.40.0480.050mg/KgChlorodibromomethane 73-122 0.6 20 0.047 95.299.00.0490.050mg/KgChloroethane 33-149 3.9 20 0.046 92.895.80.0470.050mg/KgChloroform 73-127 3.1 20 0.042 85.093.80.0460.050mg/KgChloromethane 45-143 9.8 20 0.045 90.292.00.0460.050mg/Kg2-Chlorotoluene 67-124 1.9 20 0.044 89.291.60.0450.050mg/Kg4-Chlorotoluene 71-126 2.6 20 0.046 92.094.40.0470.050mg/KgDi-Isopropyl Ether (DIPE)59-159 2.5 20 0.045 91.491.40.0450.050mg/Kg1,2-Dibromo-3-Chloropropane 55-157 0.0 20 0.046 93.494.40.0470.050mg/Kg1,2-Dibromoethane 70-132 1.0 20 0.046 93.694.80.0470.050mg/KgDibromomethane 74-133 1.2 20 0.046 92.494.40.0470.050mg/Kg1,2-Dichlorobenzene 72-123 2.1 20 0.045 90.894.00.0470.050mg/Kg1,3-Dichlorobenzene 71-120 3.4 20 Page 7 of 19Date:03/01/2022 03:38 PM Page 42 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V15101QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 LOW QC Prep:V15100 LCS-V15100 LCSD-V15100Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.045 91.693.40.0460.050mg/Kg1,4-Dichlorobenzene 71-123 1.9 20 0.038 77.882.60.0410.050mg/KgDichlorodifluoromethane 26-146 5.9 20 0.045 91.094.20.0470.050mg/Kg1,1-Dichloroethane 74-127 3.4 20 0.045 91.492.60.0460.050mg/Kg1,2-Dichloroethane 68-128 1.3 20 0.042 84.688.60.0440.050mg/Kg1,1-Dichloroethene 67-149 4.6 20 0.045 91.895.00.0470.050mg/Kgcis-1,2-Dichloroethene 76-134 3.4 20 0.043 87.491.40.0450.050mg/Kgtrans-1,2-Dichloroethene 73-132 4.4 20 0.046 92.094.60.0470.050mg/Kg1,2-Dichloropropane 73-130 2.7 20 0.045 91.693.40.0460.050mg/Kg1,3-Dichloropropane 75-124 1.9 20 0.042 85.890.60.0450.050mg/Kg2,2-Dichloropropane 50-142 5.4 20 0.042 84.489.00.0440.050mg/Kg1,1-Dichloropropene 71-130 5.3 20 0.046 93.096.00.0480.050mg/Kgcis-1,3-Dichloropropene 71-125 3.1 20 0.047 94.095.80.0470.050mg/Kgtrans-1,3-Dichloropropene 68-123 1.8 20 1.17 93.693.61.171.25mg/KgEthanol 70-130 0.0 20 0.044 88.692.20.0460.050mg/KgEthylbenzene 74-128 3.9 20 0.078 78.683.40.0830.100mg/KgEthyl Tertiary Butyl Ether (ETBE)70-130 5.9 20 0.042 85.892.20.0460.050mg/KgHexachlorobutadiene 64-125 7.1 20 0.042 84.489.60.0440.050mg/Kgn-Hexane 70-130 5.9 20 0.043 86.088.20.0440.050mg/Kg2-Hexanone 61-157 2.5 20 0.043 86.290.00.0450.050mg/KgIsopropylbenzene 68-126 4.3 20 0.043 86.490.20.0450.050mg/Kg4-Isopropyl toluene 68-129 4.3 20 0.035 71.272.00.0360.050mg/KgMethyl Ethyl Ketone (MEK)63-149 1.1 20 0.041 83.686.00.0430.050mg/KgMethyl tert-butyl ether (MTBE)70-130 2.8 20 0.042 85.487.00.0430.050mg/Kg4-Methyl-2-Pentanone 57-162 1.8 20 0.045 90.893.00.0460.050mg/KgMethylene Chloride 74-129 2.3 20 0.045 91.694.60.0470.050mg/KgNaphthalene 57-157 3.2 20 Page 8 of 19Date:03/01/2022 03:38 PM Page 43 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V15101QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 LOW QC Prep:V15100 LCS-V15100 LCSD-V15100Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.043 86.489.20.0440.050mg/Kgn-Propylbenzene 67-130 3.1 20 0.048 97.61000.0500.050mg/KgStyrene 77-121 2.4 20 0.046 92.293.20.0460.050mg/Kg1,1,1,2-Tetrachloroethane 72-115 1.0 20 0.044 88.890.40.0450.050mg/Kg1,1,2,2-Tetrachloroethane 56-126 1.7 20 0.043 86.089.60.0440.050mg/KgTetrachloroethene 68-130 4.1 20 0.045 90.293.60.0460.050mg/KgToluene 71-129 3.6 20 0.046 92.896.80.0480.050mg/Kg1,2,3-Trichlorobenzene 68-130 4.2 20 0.046 93.697.60.0480.050mg/Kg1,2,4-Trichlorobenzene 66-125 4.1 20 0.043 86.690.60.0450.050mg/Kg1,1,1-Trichloroethane 67-131 4.5 20 0.046 93.494.80.0470.050mg/Kg1,1,2-Trichloroethane 70-133 1.4 20 0.044 89.694.20.0470.050mg/KgTrichloroethene 75-133 5.0 20 0.044 89.495.40.0470.050mg/KgTrichlorofluoromethane 44-146 6.4 20 0.044 88.689.40.0440.050mg/Kg1,2,3-Trichloropropane 60-137 0.8 20 0.044 89.092.40.0460.050mg/Kg1,2,4-Trimethylbenzene 69-129 3.7 20 0.044 88.291.40.0450.050mg/Kg1,3,5-Trimethylbenzene 69-128 3.5 20 0.047 94.692.80.0460.050mg/KgVinyl Acetate 60-140 1.9 20 0.042 84.689.20.0440.050mg/KgVinyl Chloride 48-147 5.2 20 0.045 91.294.20.0470.050mg/Kgo-Xylene 74-126 3.2 20 0.089 89.893.60.0930.100mg/Kgm,p-Xylene 75-124 4.1 20 98.098.44-Bromofluorobenzene (S)70-130 99.099.6Dibromofluoromethane (S)84-123 10099.2Toluene-d8 (S)76-129 Page 9 of 19Date:03/01/2022 03:38 PM Page 44 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V15214,V15323QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V15151 Associated Lab Samples: 94336, 94337 LRB-V15151 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/21/22 14:560.6600.116<0.116mg/KgAcenaphthene 02/21/22 14:560.6600.105<0.105mg/KgAcenaphthylene 02/21/22 14:560.6600.152<0.152mg/KgAniline 02/21/22 14:560.6600.143<0.143mg/KgAnthracene 02/21/22 14:560.6600.139<0.139mg/KgBenzo(a)anthracene 02/21/22 14:560.6600.147<0.147mg/KgBenzo(a)pyrene 02/21/22 14:560.6600.146<0.146mg/KgBenzo(b)fluoranthene 02/21/22 14:560.6600.136<0.136mg/KgBenzo(g,h,i)perylene 02/21/22 14:560.6600.137<0.137mg/KgBenzo(k)fluoranthene 02/21/22 14:562.000.580<0.580mg/KgBenzoic Acid 02/21/22 14:560.6600.105<0.105mg/KgBenzyl alcohol 02/21/22 14:560.6600.118<0.118mg/KgBis(2-Chloroethoxy)methane 02/21/22 14:560.6600.107<0.107mg/KgBis(2-Chloroethyl)ether 02/21/22 14:560.3300.136<0.136mg/KgBis(2-Chloroisopropyl)ether 02/21/22 14:560.6600.120<0.120mg/KgBis(2-ethylhexyl)phthalate 02/21/22 14:560.6600.109<0.109mg/Kg4-Bromophenyl phenyl ether 02/21/22 14:560.3300.113<0.113mg/KgButyl benzyl phthalate 02/21/22 14:560.6600.092<0.092mg/Kg4-Chloro-3-methylphenol 02/21/22 14:560.3300.112<0.112mg/Kg4-Chloroaniline 02/21/22 14:560.6600.116<0.116mg/Kg2-Chloronaphthalene 02/21/22 14:560.6600.098<0.098mg/Kg2-Chlorophenol 02/21/22 14:561.000.126<0.126mg/Kg4-Chlorophenyl phenyl ether 02/21/22 14:560.6600.142<0.142mg/KgChrysene 02/21/22 14:560.6600.230<0.230mg/KgDibenz(a,h)anthracene 02/21/22 14:560.6600.119<0.119mg/KgDibenzofuran 02/21/22 14:560.6600.094<0.094mg/Kg1,2-Dichlorobenzene 02/21/22 14:560.6600.097<0.097mg/Kg1,3-Dichlorobenzene Page 10 of 19Date:03/01/2022 03:38 PM Page 45 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V15214,V15323QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V15151 Associated Lab Samples: 94336, 94337 LRB-V15151 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/21/22 14:560.3300.097<0.097mg/Kg1,4-Dichlorobenzene 02/21/22 14:560.6600.147<0.147mg/Kg3,3'-Dichlorobenzidine 02/21/22 14:560.6600.095<0.095mg/Kg2,4-Dichlorophenol 02/21/22 14:560.6600.180<0.180mg/KgDiethyl phthalate 02/21/22 14:560.6600.174<0.174mg/KgDimethyl phthalate 02/21/22 14:560.3300.108<0.108mg/Kg2,4-Dimethylphenol 02/21/22 14:560.6600.107<0.107mg/KgDi-n-butyl phthalate 02/21/22 14:561.500.240<0.240mg/Kg4,6-Dinitro-2-methylphenol 02/21/22 14:561.500.520<0.520mg/Kg2,4-Dinitrophenol 02/21/22 14:560.6600.096<0.096mg/Kg2,4-Dinitrotoluene 02/21/22 14:560.6600.108<0.108mg/Kg2,6-Dinitrotoluene 02/21/22 14:560.3300.143<0.143mg/KgDi-n-Octyl Phthalate 02/21/22 14:560.6600.123<0.123mg/KgFluoranthene 02/21/22 14:560.6600.128<0.128mg/KgFluorene 02/21/22 14:560.6600.106<0.106mg/KgHexachlorobenzene 02/21/22 14:560.6600.097<0.097mg/KgHexachlorobutadiene 02/21/22 14:560.6600.157<0.157mg/KgHexachlorocyclopentadiene 02/21/22 14:560.6600.079<0.079mg/KgHexachloroethane 02/21/22 14:560.6600.179<0.179mg/KgIndeno(1,2,3-cd)pyrene 02/21/22 14:560.6600.191<0.191mg/KgIsophorone 02/21/22 14:560.6600.106<0.106mg/Kg1-Methylnaphthalene 02/21/22 14:560.6600.100<0.100mg/Kg2-Methylnaphthalene 02/21/22 14:560.6600.097<0.097mg/Kg2-Methylphenol 02/21/22 14:560.6600.084<0.084mg/Kg3&4 Methylphenol 02/21/22 14:560.6600.144<0.144mg/KgNaphthalene 02/21/22 14:560.6600.096<0.096mg/Kg2-Nitroaniline 02/21/22 14:560.6600.120<0.120mg/Kg3-Nitroaniline Page 11 of 19Date:03/01/2022 03:38 PM Page 46 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V15214,V15323QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V15151 Associated Lab Samples: 94336, 94337 LRB-V15151 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/21/22 14:560.3300.093<0.093mg/Kg4-Nitroaniline 02/21/22 14:560.3300.116<0.116mg/KgNitrobenzene 02/21/22 14:560.6600.088<0.088mg/Kg2-Nitrophenol 02/21/22 14:560.6600.117<0.117mg/Kg4-Nitrophenol 02/21/22 14:560.6600.263<0.263mg/KgN-Nitrosodimethylamine 02/21/22 14:560.6600.181<0.181mg/KgN-Nitrosodiphenylamine 02/21/22 14:560.6600.118<0.118mg/KgN-Nitroso-di-n-propylamine 02/21/22 14:561.000.347<0.347mg/KgPentachlorophenol 02/21/22 14:560.6600.208<0.208mg/KgPhenanthrene 02/21/22 14:560.6600.112<0.112mg/KgPhenol 02/21/22 14:560.6600.134<0.134mg/KgPyrene 02/21/22 14:560.3300.079<0.079mg/KgPyridine 02/21/22 14:560.6600.107<0.107mg/Kg1,2,4-Trichlorobenzene 02/21/22 14:560.6600.096<0.096mg/Kg2,4,5-Trichlorophenol 02/21/22 14:560.6600.096<0.096mg/Kg2,4,6-Trichlorophenol 02/21/22 14:562-Fluorobiphenyl (S)70.0 44-115 02/21/22 14:562-Fluorophenol (S)67.5 35-115 02/21/22 14:56Nitrobenzene-d5 (S)65.2 37-122 02/21/22 14:564-Terphenyl-d14 (S)79.6 54-127 02/21/22 14:562,4,6-Tribromophenol (S)71.4 39-132 02/21/22 14:56Phenol-d5 (S)68.1 34-121 LCS-V15151Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 79.01.321.67mg/KgAcenaphthene 40-123 82.01.371.67mg/KgAcenaphthylene 32-132 Page 12 of 19Date:03/01/2022 03:38 PM Page 47 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V15214,V15323QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V15151 LCS-V15151Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 88.61.481.67mg/KgAniline 12-197 82.01.371.67mg/KgAnthracene 47-123 79.01.321.67mg/KgBenzo(a)anthracene 49-126 96.41.611.67mg/KgBenzo(a)pyrene 45-129 85.01.421.67mg/KgBenzo(b)fluoranthene 45-132 78.41.311.67mg/KgBenzo(g,h,i)perylene 43-134 82.01.371.67mg/KgBenzo(k)fluoranthene 47-132 0.0*1.061.67mg/KgBenzoic Acid 10-83 74.81.251.67mg/KgBenzyl alcohol 29-122 82.61.381.67mg/KgBis(2-Chloroethoxy)methane 36-121 75.41.261.67mg/KgBis(2-Chloroethyl)ether 31-120 74.81.251.67mg/KgBis(2-Chloroisopropyl)ether 33-131 90.41.511.67mg/KgBis(2-ethylhexyl)phthalate 51-133 82.61.381.67mg/Kg4-Bromophenyl phenyl ether 46-124 89.81.501.67mg/KgButyl benzyl phthalate 48-132 78.41.311.67mg/Kg4-Chloro-3-methylphenol 45-122 63.41.061.67mg/Kg4-Chloroaniline 17-106 78.41.311.67mg/Kg2-Chloronaphthalene 41-114 80.21.341.67mg/Kg2-Chlorophenol 34-121 79.01.321.67mg/Kg4-Chlorophenyl phenyl ether 45-121 80.81.351.67mg/KgChrysene 50-124 69.41.161.67mg/KgDibenz(a,h)anthracene 45-134 79.01.321.67mg/KgDibenzofuran 44-120 65.81.101.67mg/Kg1,2-Dichlorobenzene 33-117 67.01.121.67mg/Kg1,3-Dichlorobenzene 30-115 63.41.061.67mg/Kg1,4-Dichlorobenzene 31-115 53.40.8921.67mg/Kg3,3'-Dichlorobenzidine 22-121 Page 13 of 19* QC Fail Date:03/01/2022 03:38 PM Page 48 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V15214,V15323QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V15151 LCS-V15151Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 76.01.271.67mg/Kg2,4-Dichlorophenol 40-122 79.61.331.67mg/KgDiethyl phthalate 50-124 78.41.311.67mg/KgDimethyl phthalate 48-124 82.01.371.67mg/Kg2,4-Dimethylphenol 30-127 87.41.461.67mg/KgDi-n-butyl phthalate 51-128 0.0*1.301.67mg/Kg4,6-Dinitro-2-methylphenol 29-132 0.0*1.291.67mg/Kg2,4-Dinitrophenol 27-129 85.61.431.67mg/Kg2,4-Dinitrotoluene 48-126 86.81.451.67mg/Kg2,6-Dinitrotoluene 46-124 89.81.501.67mg/KgDi-n-Octyl Phthalate 45-140 80.21.341.67mg/KgFluoranthene 50-127 79.61.331.67mg/KgFluorene 43-125 80.81.351.67mg/KgHexachlorobenzene 45-122 66.41.111.67mg/KgHexachlorobutadiene 32-123 61.01.021.67mg/KgHexachlorocyclopentadiene 32-117 71.21.191.67mg/KgHexachloroethane 28-117 78.41.311.67mg/KgIndeno(1,2,3-cd)pyrene 45-133 67.61.131.67mg/KgIsophorone 30-122 68.81.151.67mg/Kg1-Methylnaphthalene 40-119 68.81.151.67mg/Kg2-Methylnaphthalene 38-122 77.81.301.67mg/Kg2-Methylphenol 32-122 74.81.251.67mg/Kg3&4 Methylphenol 34-119 64.61.081.67mg/KgNaphthalene 35-123 83.81.401.67mg/Kg2-Nitroaniline 44-127 79.61.331.67mg/Kg3-Nitroaniline 33-119 77.21.291.67mg/Kg4-Nitroaniline 63-147 67.01.121.67mg/KgNitrobenzene 34-122 Page 14 of 19* QC Fail Date:03/01/2022 03:38 PM Page 49 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V15214,V15323QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V15151 LCS-V15151Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 69.41.161.67mg/Kg2-Nitrophenol 36-123 85.61.431.67mg/Kg4-Nitrophenol 30-132 41.20.6891.67mg/KgN-Nitrosodimethylamine 10-146 98.81.651.67mg/KgN-Nitrosodiphenylamine 38-127 80.21.341.67mg/KgN-Nitroso-di-n-propylamine 36-120 1051.761.67mg/KgPentachlorophenol 25-133 81.41.361.67mg/KgPhenanthrene 50-121 77.21.291.67mg/KgPhenol 34-121 85.01.421.67mg/KgPyrene 47-127 34.40.5751.67mg/KgPyridine 10-80 64.61.081.67mg/Kg1,2,4-Trichlorobenzene 34-118 80.81.351.67mg/Kg2,4,5-Trichlorophenol 41-124 83.21.391.67mg/Kg2,4,6-Trichlorophenol 39-126 69.42-Fluorobiphenyl (S)44-115 69.92-Fluorophenol (S)35-115 58.0Nitrobenzene-d5 (S)37-122 74.84-Terphenyl-d14 (S)54-127 73.52,4,6-Tribromophenol (S)39-132 67.2Phenol-d5 (S)34-121 V 94192-MS-V15151 V 94192-MSD-V15151Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 0.413 0.0*1.571.671.67<0.580mg/KgAcenaphthene 94.0 40-123 81.6*20 0.566 0.0*1.371.671.67<0.525mg/KgAcenaphthylene 82.0 32-132 69.9*20 0.616 0.0*0.5431.671.67<0.760mg/KgAniline 0.0*12-197 0.0 20 Page 15 of 19* QC Fail Date:03/01/2022 03:38 PM Page 50 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V15214,V15323QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V15151 V 94192-MS-V15151 V 94192-MSD-V15151Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 4.28 256*3.511.671.67<0.715mg/KgAnthracene 210*47-123 19.7 20 1.15 68.81.161.671.67<0.695mg/KgBenzo(a)anthracene 69.4 49-126 0.8 20 1.29 77.21.331.671.67<0.735mg/KgBenzo(a)pyrene 79.6 45-129 3.0 20 1.16 69.41.211.671.67<0.730mg/KgBenzo(b)fluoranthene 72.4 45-132 4.2 20 1.53 91.61.121.671.67<0.680mg/KgBenzo(g,h,i)perylene 67.0 43-134 30.9*20 1.08 64.61.111.671.67<0.685mg/KgBenzo(k)fluoranthene 66.4 47-132 2.7 20 0.784 0.0*1.121.671.67<2.90mg/KgBenzoic Acid 0.0*10-83 0.0 20 1.08 64.61.061.671.67<0.525mg/KgBenzyl alcohol 63.4 29-122 1.8 20 1.23 73.61.171.671.67<0.590mg/KgBis(2-Chloroethoxy)methane 70.0 36-121 5.0 20 1.10 65.81.071.671.67<0.535mg/KgBis(2-Chloroethyl)ether 64.0 31-120 2.7 20 0.729 43.60.6271.671.67<0.680mg/KgBis(2-Chloroisopropyl)ether 37.5 33-131 15.0 20 1.31 78.41.331.671.67<0.600mg/KgBis(2-ethylhexyl)phthalate 79.6 51-133 1.5 20 1.31 78.41.601.671.67<0.545mg/Kg4-Bromophenyl phenyl ether 95.8 46-124 19.9 20 1.09 65.21.281.671.67<0.565mg/KgButyl benzyl phthalate 76.6 48-132 16.0 20 2.13 128*1.331.671.67<0.462mg/Kg4-Chloro-3-methylphenol 79.6 45-122 46.2*20 0.908 54.30.9801.671.67<0.560mg/Kg4-Chloroaniline 58.6 17-106 7.6 20 <0.116 0.0*1.111.671.67<0.580mg/Kg2-Chloronaphthalene 66.4 41-114 50.8*20 0.826 49.40.8461.671.67<0.491mg/Kg2-Chlorophenol 50.6 34-121 2.3 20 1.14 68.21.071.671.67<0.630mg/Kg4-Chlorophenyl phenyl ether 64.0 45-121 6.3 20 1.15 68.81.101.671.67<0.710mg/KgChrysene 65.8 50-124 4.4 20 1.29 77.21.351.671.67<1.15mg/KgDibenz(a,h)anthracene 80.8 45-134 4.5 20 <0.119 0.0*<0.1191.671.67<0.595mg/KgDibenzofuran 0.0*44-120 0.0 20 0.945 56.50.9161.671.67<0.472mg/Kg1,2-Dichlorobenzene 54.8 33-117 3.1 20 0.918 54.90.8881.671.67<0.487mg/Kg1,3-Dichlorobenzene 53.1 30-115 3.3 20 0.936 56.00.9151.671.67<0.488mg/Kg1,4-Dichlorobenzene 54.7 31-115 2.2 20 0.291 0.0*0.2941.671.67<0.735mg/Kg3,3'-Dichlorobenzidine 0.0*22-121 0.0 20 Page 16 of 19* QC Fail Date:03/01/2022 03:38 PM Page 51 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V15214,V15323QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V15151 V 94192-MS-V15151 V 94192-MSD-V15151Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 1.12 67.01.061.671.67<0.479mg/Kg2,4-Dichlorophenol 63.4 40-122 5.5 20 <0.180 0.0*1.071.671.67<0.900mg/KgDiethyl phthalate 64.0 50-124 47.3*20 <0.174 0.0*0.9691.671.67<0.870mg/KgDimethyl phthalate 58.0 48-124 37.9*30 1.58 94.61.031.671.67<0.540mg/Kg2,4-Dimethylphenol 61.6 30-127 42.1*20 1.27 76.01.271.671.67<0.535mg/KgDi-n-butyl phthalate 76.0 51-128 0.0 20 0.661 0.0*0.6811.671.67<1.20mg/Kg4,6-Dinitro-2-methylphenol 0.0*29-132 0.0 20 <0.520 0.0*0.8031.671.67<2.60mg/Kg2,4-Dinitrophenol 0.0*27-129 0.0 20 0.638 0.0*1.411.671.67<0.483mg/Kg2,4-Dinitrotoluene 84.4 48-126 72.4*20 1.51 90.41.351.671.67<0.540mg/Kg2,6-Dinitrotoluene 80.8 46-124 11.1 20 1.79 1071.251.671.67<0.715mg/KgDi-n-Octyl Phthalate 74.8 45-140 35.5*20 1.56 93.41.441.671.67<0.615mg/KgFluoranthene 86.2 50-127 8.0 20 <0.128 0.0*2.111.671.672.54mg/KgFluorene -24*43-125 105*20 1.51 90.41.381.671.67<0.530mg/KgHexachlorobenzene 82.6 45-122 8.9 20 1.27 76.01.251.671.67<0.488mg/KgHexachlorobutadiene 74.8 32-123 1.5 20 0.708 42.30.7381.671.67<0.785mg/KgHexachlorocyclopentadiene 44.1 32-117 4.1 20 4.24 254*2.871.671.67<0.396mg/KgHexachloroethane 172*28-117 38.5*20 1.54 92.21.521.671.67<0.895mg/KgIndeno(1,2,3-cd)pyrene 91.0 45-133 1.3 20 1.95 1171.041.671.67<0.955mg/KgIsophorone 62.2 30-122 60.8*20 8.88 -170*5.761.671.6711.8mg/Kg1-Methylnaphthalene -360*40-119 42.6*20 13.2 -320*8.621.671.6718.8mg/Kg2-Methylnaphthalene -590*38-122 41.9*20 0.946 56.60.8651.671.67<0.485mg/Kg2-Methylphenol 51.7 32-122 8.9 20 0.840 50.20.6201.671.67<0.425mg/Kg3&4 Methylphenol 0.0*34-119 24.0*20 3.88 -59*3.071.671.674.87mg/KgNaphthalene -90*35-123 23.3*20 0.817 48.93.291.671.67<0.484mg/Kg2-Nitroaniline 197*44-127 120*20 0.826 49.40.7911.671.67<0.600mg/Kg3-Nitroaniline 47.3 33-119 4.3 20 0.097 0.0*1.531.671.67<0.467mg/Kg4-Nitroaniline 91.6 63-147 129*20 Page 17 of 19* QC Fail Date:03/01/2022 03:38 PM Page 52 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V15214,V15323QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V15151 V 94192-MS-V15151 V 94192-MSD-V15151Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 1.10 65.80.7151.671.67<0.580mg/KgNitrobenzene 42.8 34-122 42.4*20 1.85 1111.071.671.67<0.444mg/Kg2-Nitrophenol 64.0 32-123 53.4*20 0.720 43.11.381.671.67<0.585mg/Kg4-Nitrophenol 82.6 30-132 62.8*20 0.448 0.0*0.5231.671.67<1.32mg/KgN-Nitrosodimethylamine 0.0*10-146 0.0 30 5.65 338*4.731.671.67<0.905mg/KgN-Nitrosodiphenylamine 283*38-127 17.7 20 1.63 97.60.6341.671.67<0.590mg/KgN-Nitroso-di-n-propylamine 0.0*36-120 84.7*20 1.52 91.01.541.671.67<1.74mg/KgPentachlorophenol 92.2 25-133 1.3 20 4.11 -61*3.331.671.675.13mg/KgPhenanthrene -90*50-121 20.9*20 1.20 71.81.081.671.67<0.560mg/KgPhenol 64.6 34-121 10.5 20 1.79 1071.651.671.671.49mg/KgPyrene 9.5*47-127 8.1 20 0.175 0.0*0.2551.671.67<0.396mg/KgPyridine 0.0*10-80 0.0 20 1.00 59.81.031.671.67<0.535mg/Kg1,2,4-Trichlorobenzene 61.6 34-118 2.9 20 0.411 0.0*1.281.671.67<0.481mg/Kg2,4,5-Trichlorophenol 76.6 41-124 63.9*20 1.52 91.01.451.671.67<0.483mg/Kg2,4,6-Trichlorophenol 86.8 39-126 4.7 20 71.82-Fluorobiphenyl (S)70.0 44-115 61.52-Fluorophenol (S)62.7 35-115 104Nitrobenzene-d5 (S)73.0 37-122 60.44-Terphenyl-d14 (S)65.8 54-127 90.02,4,6-Tribromophenol (S)93.9 39-132 61.5Phenol-d5 (S)57.9 34-121 Page 18 of 19* QC Fail Date:03/01/2022 03:38 PM Page 53 of 56 Quality Control Data 22-048-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) ACO-002 Dry Weight Determination SW-DRYWT V15195QC Analytical Batch: Analysis Method: Analysis Description: V 94189-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 02/21/22 15:351.223.923.6%Moisture Page 19 of 19Date:03/01/2022 03:38 PM Page 54 of 56 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:22-048-0004 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT 15 3.2 Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs ü Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)ü High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angela D Overcash Date & Time:02/17/2022 12:16:17 Special precautions or instructions included? Comments: Page 55 of 56 Page 56 of 56   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   2/25/2022 Hart & Hickman (Charlotte) Haley Martin 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 22-049-0004 Client Project Description: Harrelson Ford ACO-002 Dear Haley Martin: Waypoint Analytical, LLC (Charlotte) received sample(s) on 2/18/2022 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as- received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 52 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202237735State ProgramNorth Carolina 12/31/2022402State ProgramNorth Carolina 07/31/202299012State ProgramSouth Carolina 12/31/202199012State ProgramSouth Carolina Page 1 of 1 00016/22-049-0004 Page 2 of 52 Report Number: Sample Summary Table Client Project Description: 22-049-0004 Harrelson Ford ACO-002 Lab No Client Sample ID Matrix Date Collected Date Received 02/16/2022 12:20Air 94422 SSV-2 02/18/2022 10:53 02/16/2022Air 94423 SSV-DUP 02/18/2022 10:53 02/16/2022 14:55Air 94424 SSV-6 02/18/2022 10:53 02/17/2022 14:27Air 94425 SSV-5 02/18/2022 10:53 02/17/2022 13:42Air 94426 SG-16 02/18/2022 10:53 02/16/2022 14:09Air 94427 SSV-4 02/18/2022 10:53 02/17/2022 13:04Air 94428 SSV-1 02/18/2022 10:53 02/16/2022 13:32Air 94429 SSV-3 02/18/2022 10:53 Page 3 of 52 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-049-0004 Report Limit Project:Harrelson Ford V 94422SSV-2 38.9 02/22/2022 23:10TO-15 Acetone µg/m3 0.202 J0.262 02/22/2022 23:10TO-15 Benzene µg/m3 0.0733 J2.29 02/22/2022 23:10TO-15 Carbon Disulfide µg/m3 0.0608 2.79 02/22/2022 23:10TO-15 Dichlorodifluoromethane µg/m3 0.134 J1.03 02/22/2022 23:10TO-15 1,4-Dioxane µg/m3 0.435 J0.395 02/22/2022 23:10TO-15 Ethylbenzene µg/m3 0.106 3.23 02/22/2022 23:10TO-15 2-Hexanone µg/m3 0.285 22.8 02/22/2022 23:10TO-15 Isopropyl Alchohol µg/m3 0.139 4.93 02/22/2022 23:10TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J0.508 02/22/2022 23:10TO-15 4-Methyl-2-Pentanone µg/m3 0.121 J0.750 02/22/2022 23:10TO-15 Methylene Chloride µg/m3 0.489 J0.430 02/22/2022 23:10TO-15 Styrene µg/m3 0.124 6670 02/22/2022 21:40TO-15 Tetrachloroethene µg/m3 9.07 2.03 02/22/2022 23:10TO-15 Toluene µg/m3 0.0901 J1.86 02/22/2022 23:10TO-15 1,1,1-Trichloroethane µg/m3 0.144 J1.54 02/22/2022 23:10TO-15 Trichloroethene µg/m3 0.199 J1.12 02/22/2022 23:10TO-15 Trichlorofluoromethane µg/m3 0.130 J1.22 02/22/2022 23:10TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.734 02/22/2022 23:10TO-15 o-Xylene µg/m3 0.157 J1.55 02/22/2022 23:10TO-15 m,p-Xylene µg/m3 0.217 J2.28 02/22/2022 23:10TO-15 Xylene (Total)µg/m3 0.157 V 94423SSV-DUP 42.6 02/23/2022 00:01TO-15 Acetone µg/m3 0.202 J0.303 02/23/2022 00:01TO-15 Benzene µg/m3 0.0733 J2.25 02/23/2022 00:01TO-15 Carbon Disulfide µg/m3 0.0608 4.69 02/23/2022 00:01TO-15 Cyclohexane µg/m3 0.161 2.75 02/23/2022 00:01TO-15 Dichlorodifluoromethane µg/m3 0.134 J0.951 02/23/2022 00:01TO-15 1,4-Dioxane µg/m3 0.435 J0.399 02/23/2022 00:01TO-15 Ethylbenzene µg/m3 0.106 3.22 02/23/2022 00:01TO-15 2-Hexanone µg/m3 0.285 23.1 02/23/2022 00:01TO-15 Isopropyl Alchohol µg/m3 0.139 5.71 02/23/2022 00:01TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J0.750 02/23/2022 00:01TO-15 Methylene Chloride µg/m3 0.489 J0.405 02/23/2022 00:01TO-15 Styrene µg/m3 0.124 6440 02/22/2022 22:18TO-15 Tetrachloroethene µg/m3 9.07 J0.779 02/23/2022 00:01TO-15 Tetrahydrofuran µg/m3 0.107 Page 4 of 52 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-049-0004 Report Limit Project:Harrelson Ford V 94423SSV-DUP J1.82 02/23/2022 00:01TO-15 Toluene µg/m3 0.0901 J1.84 02/23/2022 00:01TO-15 1,1,1-Trichloroethane µg/m3 0.144 J1.50 02/23/2022 00:01TO-15 Trichloroethene µg/m3 0.199 J1.11 02/23/2022 00:01TO-15 Trichlorofluoromethane µg/m3 0.130 J1.33 02/23/2022 00:01TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.677 02/23/2022 00:01TO-15 o-Xylene µg/m3 0.157 J1.48 02/23/2022 00:01TO-15 m,p-Xylene µg/m3 0.217 J2.16 02/23/2022 00:01TO-15 Xylene (Total)µg/m3 0.157 V 94424SSV-6 398 02/19/2022 07:22TO-15 Acetone µg/m3 4.04 J0.393 02/22/2022 16:52TO-15 Benzene µg/m3 0.0733 J3.86 02/22/2022 16:52TO-15 Carbon Disulfide µg/m3 0.0608 J0.425 02/22/2022 16:52TO-15 Chloroform µg/m3 0.0864 8.80 02/22/2022 16:52TO-15 Cyclohexane µg/m3 0.161 J1.67 02/22/2022 16:52TO-15 1,4-Dichlorobenzene µg/m3 0.186 2.62 02/22/2022 16:52TO-15 Dichlorodifluoromethane µg/m3 0.134 J1.13 02/22/2022 16:52TO-15 cis-1,2-Dichloroethene µg/m3 0.0955 J0.903 02/22/2022 16:52TO-15 Ethylbenzene µg/m3 0.106 J0.600 02/22/2022 16:52TO-15 4-Ethyltoluene µg/m3 0.128 J1.14 02/22/2022 16:52TO-15 Heptane µg/m3 0.143 3.93 02/22/2022 16:52TO-15 2-Hexanone µg/m3 0.285 61.2 02/22/2022 16:52TO-15 Isopropyl Alchohol µg/m3 0.139 15.9 02/22/2022 16:52TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 4.48 02/22/2022 16:52TO-15 4-Methyl-2-Pentanone µg/m3 0.121 J0.938 02/22/2022 16:52TO-15 Methylene Chloride µg/m3 0.489 J0.835 02/22/2022 16:52TO-15 Styrene µg/m3 0.124 647 02/19/2022 07:22TO-15 Tetrachloroethene µg/m3 3.62 7.22 02/22/2022 16:52TO-15 Toluene µg/m3 0.0901 26.9 02/22/2022 16:52TO-15 Trichloroethene µg/m3 0.199 J1.33 02/22/2022 16:52TO-15 Trichlorofluoromethane µg/m3 0.130 2.91 02/22/2022 16:52TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.732 02/22/2022 16:52TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 J1.61 02/22/2022 16:52TO-15 o-Xylene µg/m3 0.157 J3.55 02/22/2022 16:52TO-15 m,p-Xylene µg/m3 0.217 J5.16 02/22/2022 16:52TO-15 Xylene (Total)µg/m3 0.157 Page 5 of 52 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-049-0004 Report Limit Project:Harrelson Ford V 94425SSV-5 J24.4 02/19/2022 08:01TO-15 Acetone µg/m3 4.04 35.9 02/19/2022 08:01TO-15 Benzene µg/m3 1.46 22.1 02/19/2022 08:01TO-15 1,3-Butadiene µg/m3 6.53 J25.9 02/19/2022 08:01TO-15 Carbon Disulfide µg/m3 1.22 J12.1 02/19/2022 08:01TO-15 Chloroethane µg/m3 3.28 72.0 02/19/2022 08:01TO-15 Cyclohexane µg/m3 3.22 13500 02/22/2022 17:30TO-15 cis-1,2-Dichloroethene µg/m3 9.54 132 02/19/2022 08:01TO-15 trans-1,2-Dichloroethene µg/m3 2.16 61.6 02/19/2022 08:01TO-15 Ethylbenzene µg/m3 2.12 J11.4 02/19/2022 08:01TO-15 4-Ethyltoluene µg/m3 2.56 J23.8 02/19/2022 08:01TO-15 Heptane µg/m3 2.86 50.3 02/19/2022 08:01TO-15 n-Hexane µg/m3 0.943 J7.67 02/19/2022 08:01TO-15 Isopropyl Alchohol µg/m3 2.78 J9.73 02/19/2022 08:01TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48 252 02/19/2022 08:01TO-15 Methyl tert-butyl ether (MTBE)µg/m3 0.673 393 02/19/2022 08:01TO-15 Propene µg/m3 4.84 J32.2 02/19/2022 08:01TO-15 Tetrachloroethene µg/m3 3.62 224 02/19/2022 08:01TO-15 Toluene µg/m3 1.80 11700 02/22/2022 17:30TO-15 Vinyl Chloride µg/m3 12.7 74.6 02/19/2022 08:01TO-15 o-Xylene µg/m3 3.14 227 02/19/2022 08:01TO-15 m,p-Xylene µg/m3 4.34 302 02/19/2022 08:01TO-15 Xylene (Total)µg/m3 3.14 V 94426SG-16 72.5 02/22/2022 18:24TO-15 Acetone µg/m3 0.202 20.9 02/22/2022 18:24TO-15 Benzene µg/m3 0.0733 12.0 02/22/2022 18:24TO-15 Carbon Disulfide µg/m3 0.0608 J1.26 02/22/2022 18:24TO-15 Carbon Tetrachloride µg/m3 0.155 J0.977 02/22/2022 18:24TO-15 Chloromethane µg/m3 0.0673 21.1 02/22/2022 18:24TO-15 Cyclohexane µg/m3 0.161 3.16 02/22/2022 18:24TO-15 Dichlorodifluoromethane µg/m3 0.134 15.8 02/22/2022 18:24TO-15 Ethylbenzene µg/m3 0.106 J1.96 02/22/2022 18:24TO-15 4-Ethyltoluene µg/m3 0.128 J1.12 02/22/2022 18:24TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561 26.1 02/22/2022 18:24TO-15 Heptane µg/m3 0.143 57.0 02/22/2022 18:24TO-15 n-Hexane µg/m3 0.0472 15.6 02/22/2022 18:24TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 Page 6 of 52 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-049-0004 Report Limit Project:Harrelson Ford V 94426SG-16 3.56 02/22/2022 18:24TO-15 4-Methyl-2-Pentanone µg/m3 0.121 2.17 02/22/2022 18:24TO-15 Methylene Chloride µg/m3 0.489 2.91 02/22/2022 18:24TO-15 Naphthalene µg/m3 0.183 152 02/25/2022 11:39TO-15 Propene µg/m3 1.21 J1.58 02/22/2022 18:24TO-15 Styrene µg/m3 0.124 J2.44 02/22/2022 18:24TO-15 Tetrachloroethene µg/m3 0.181 1.57 02/22/2022 18:24TO-15 Tetrahydrofuran µg/m3 0.107 259 02/25/2022 11:39TO-15 Toluene µg/m3 0.450 J2.57 02/22/2022 18:24TO-15 Trichlorofluoromethane µg/m3 0.130 5.67 02/22/2022 18:24TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J1.97 02/22/2022 18:24TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 15.2 02/22/2022 18:24TO-15 o-Xylene µg/m3 0.157 55.0 02/22/2022 18:24TO-15 m,p-Xylene µg/m3 0.217 70.2 02/22/2022 18:24TO-15 Xylene (Total)µg/m3 0.157 V 94427SSV-4 33.1 02/22/2022 19:16TO-15 Acetone µg/m3 0.202 J0.326 02/22/2022 19:16TO-15 Benzene µg/m3 0.0733 J1.93 02/22/2022 19:16TO-15 Carbon Disulfide µg/m3 0.0608 6.81 02/22/2022 19:16TO-15 Cyclohexane µg/m3 0.161 2.76 02/22/2022 19:16TO-15 Dichlorodifluoromethane µg/m3 0.134 J0.577 02/22/2022 19:16TO-15 Ethylbenzene µg/m3 0.106 3.50 02/22/2022 19:16TO-15 2-Hexanone µg/m3 0.285 JB2.11 02/22/2022 19:16TO-15 Isopropyl Alchohol µg/m3 0.139 3.35 02/22/2022 19:16TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J1.01 02/22/2022 19:16TO-15 4-Methyl-2-Pentanone µg/m3 0.121 J0.986 02/22/2022 19:16TO-15 Methylene Chloride µg/m3 0.489 2.70 02/22/2022 19:16TO-15 Naphthalene µg/m3 0.183 J0.575 02/22/2022 19:16TO-15 Styrene µg/m3 0.124 J3.37 02/22/2022 19:16TO-15 Tetrachloroethene µg/m3 0.181 J0.457 02/22/2022 19:16TO-15 Tetrahydrofuran µg/m3 0.107 2.72 02/22/2022 19:16TO-15 Toluene µg/m3 0.0901 J1.43 02/22/2022 19:16TO-15 Trichlorofluoromethane µg/m3 0.130 J1.68 02/22/2022 19:16TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.408 02/22/2022 19:16TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 J1.15 02/22/2022 19:16TO-15 o-Xylene µg/m3 0.157 J2.19 02/22/2022 19:16TO-15 m,p-Xylene µg/m3 0.217 Page 7 of 52 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-049-0004 Report Limit Project:Harrelson Ford V 94427SSV-4 J3.34 02/22/2022 19:16TO-15 Xylene (Total)µg/m3 0.157 V 94428SSV-1 30.1 02/22/2022 20:10TO-15 Acetone µg/m3 0.202 J0.588 02/22/2022 20:10TO-15 Benzene µg/m3 0.0733 J2.06 02/22/2022 20:10TO-15 Carbon Disulfide µg/m3 0.0608 12.1 02/22/2022 20:10TO-15 Chloroform µg/m3 0.0864 5.42 02/22/2022 20:10TO-15 Cyclohexane µg/m3 0.161 2.77 02/22/2022 20:10TO-15 Dichlorodifluoromethane µg/m3 0.134 1.86 02/22/2022 20:10TO-15 1,4-Dioxane µg/m3 0.435 J1.18 02/22/2022 20:10TO-15 Ethylbenzene µg/m3 0.106 J0.555 02/22/2022 20:10TO-15 4-Ethyltoluene µg/m3 0.128 J0.750 02/22/2022 20:10TO-15 Heptane µg/m3 0.143 J0.779 02/22/2022 20:10TO-15 n-Hexane µg/m3 0.0472 4.99 02/22/2022 20:10TO-15 Isopropyl Alchohol µg/m3 0.139 1.70 02/22/2022 20:10TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J0.841 02/22/2022 20:10TO-15 Methylene Chloride µg/m3 0.489 2.81 02/22/2022 20:10TO-15 Naphthalene µg/m3 0.183 J0.596 02/22/2022 20:10TO-15 Styrene µg/m3 0.124 523 02/19/2022 10:44TO-15 Tetrachloroethene µg/m3 3.62 5.18 02/22/2022 20:10TO-15 Toluene µg/m3 0.0901 J1.65 02/22/2022 20:10TO-15 Trichlorofluoromethane µg/m3 0.130 2.81 02/22/2022 20:10TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.703 02/22/2022 20:10TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 J1.97 02/22/2022 20:10TO-15 o-Xylene µg/m3 0.157 J4.45 02/22/2022 20:10TO-15 m,p-Xylene µg/m3 0.217 J6.42 02/22/2022 20:10TO-15 Xylene (Total)µg/m3 0.157 V 94429SSV-3 33.5 02/22/2022 21:02TO-15 Acetone µg/m3 0.202 J0.668 02/22/2022 21:02TO-15 Benzene µg/m3 0.0733 J0.532 02/22/2022 21:02TO-15 Carbon Disulfide µg/m3 0.0608 6.91 02/22/2022 21:02TO-15 Cyclohexane µg/m3 0.161 2.72 02/22/2022 21:02TO-15 Dichlorodifluoromethane µg/m3 0.134 4.04 02/22/2022 21:02TO-15 1,4-Dioxane µg/m3 0.435 J2.09 02/22/2022 21:02TO-15 Ethylbenzene µg/m3 0.106 J0.777 02/22/2022 21:02TO-15 4-Ethyltoluene µg/m3 0.128 J0.533 02/22/2022 21:02TO-15 Heptane µg/m3 0.143 Page 8 of 52 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-049-0004 Report Limit Project:Harrelson Ford V 94429SSV-3 J1.10 02/22/2022 21:02TO-15 n-Hexane µg/m3 0.0472 3.28 02/22/2022 21:02TO-15 2-Hexanone µg/m3 0.285 21.6 02/22/2022 21:02TO-15 Isopropyl Alchohol µg/m3 0.139 2.94 02/22/2022 21:02TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J1.18 02/22/2022 21:02TO-15 4-Methyl-2-Pentanone µg/m3 0.121 J0.604 02/22/2022 21:02TO-15 Methylene Chloride µg/m3 0.489 2.75 02/22/2022 21:02TO-15 Naphthalene µg/m3 0.183 21.0 02/22/2022 21:02TO-15 Propene µg/m3 0.242 J0.741 02/22/2022 21:02TO-15 Styrene µg/m3 0.124 1090 02/19/2022 11:20TO-15 Tetrachloroethene µg/m3 3.62 4.02 02/22/2022 21:02TO-15 Toluene µg/m3 0.0901 J1.32 02/22/2022 21:02TO-15 Trichlorofluoromethane µg/m3 0.130 4.42 02/22/2022 21:02TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J1.32 02/22/2022 21:02TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 12.6 02/22/2022 21:02TO-15 o-Xylene µg/m3 0.157 12.7 02/22/2022 21:02TO-15 m,p-Xylene µg/m3 0.217 25.3 02/22/2022 21:02TO-15 Xylene (Total)µg/m3 0.157 Page 9 of 52   Client: Hart & Hickman (Charlotte) CASE NARRATIVE Project: Harrelson Ford Lab Report Number: 22-049-0004 Date: 2/25/2022 Volatile Organic Compounds in Air- GC/MS Method TO-15 Sample 94425 (SSV-5) QC Batch No: V15362/V15360 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Page 10 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-2 94422 Matrix: 2/16/2022 12:20 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 38.9 µg/m3 0.202 4.75Acetone 1 02/22/22 23:10 V15298ENM 0.262 J µg/m3 0.0733 1.60Benzene 1 02/22/22 23:10 V15298ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/22/22 23:10 V15298ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/22/22 23:10 V15298ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/22/22 23:10 V15298ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/22/22 23:10 V15298ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/22/22 23:10 V15298ENM 2.29 J µg/m3 0.0608 6.23Carbon Disulfide 1 02/22/22 23:10 V15298ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/22/22 23:10 V15298ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/22/22 23:10 V15298ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/22/22 23:10 V15298ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/22/22 23:10 V15298ENM <0.0864 µg/m3 0.0864 2.44Chloroform 1 02/22/22 23:10 V15298ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/22/22 23:10 V15298ENM <0.161 µg/m3 0.161 3.44Cyclohexane 1 02/22/22 23:10 V15298ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/22/22 23:10 V15298ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/22/22 23:10 V15298ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/22/22 23:10 V15298ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/22/22 23:10 V15298ENM 2.79 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/22/22 23:10 V15298ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/22/22 23:10 V15298ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/22/22 23:10 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 11 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-2 94422 Matrix: 2/16/2022 12:20 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/22/22 23:10 V15298ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/22/22 23:10 V15298ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/22/22 23:10 V15298ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/22/22 23:10 V15298ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/22/22 23:10 V15298ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/22/22 23:10 V15298ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/22/22 23:10 V15298ENM 1.03 J µg/m3 0.435 1.801,4-Dioxane 1 02/22/22 23:10 V15298ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/22/22 23:10 V15298ENM 0.395 J µg/m3 0.106 2.17Ethylbenzene 1 02/22/22 23:10 V15298ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 02/22/22 23:10 V15298ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/22/22 23:10 V15298ENM <0.143 µg/m3 0.143 2.05Heptane 1 02/22/22 23:10 V15298ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/22/22 23:10 V15298ENM <0.0472 µg/m3 0.0472 1.76n-Hexane 1 02/22/22 23:10 V15298ENM 3.23 µg/m3 0.285 2.05 2-Hexanone 1 02/22/22 23:10 V15298ENM 22.8 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/22/22 23:10 V15298ENM 4.93 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/22/22 23:10 V15298ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/22/22 23:10 V15298ENM 0.508 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/22/22 23:10 V15298ENM 0.750 J µg/m3 0.489 1.74Methylene Chloride 1 02/22/22 23:10 V15298ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 02/22/22 23:10 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 12 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-2 94422 Matrix: 2/16/2022 12:20 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 <0.242 µg/m3 0.242 0.861Propene 1 02/22/22 23:10 V15298ENM 0.430 J µg/m3 0.124 2.13Styrene 1 02/22/22 23:10 V15298ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/22/22 23:10 V15298ENM 6670 µg/m3 9.07 170Tetrachloroethene 50 02/22/22 21:40 V15298ENM <0.107 µg/m3 0.107 1.47Tetrahydrofuran 1 02/22/22 23:10 V15298ENM 2.03 µg/m3 0.0901 1.88Toluene 1 02/22/22 23:10 V15298ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/22/22 23:10 V15298ENM 1.86 J µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/22/22 23:10 V15298ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/22/22 23:10 V15298ENM 1.54 J µg/m3 0.199 2.15Trichloroethene 1 02/22/22 23:10 V15298ENM 1.12 J µg/m3 0.130 2.81Trichlorofluoromethane 1 02/22/22 23:10 V15298ENM 1.22 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/22/22 23:10 V15298ENM <0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/22/22 23:10 V15298ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/22/22 23:10 V15298ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/22/22 23:10 V15298ENM 0.734 J µg/m3 0.157 2.17 o-Xylene 1 02/22/22 23:10 V15298ENM 1.55 J µg/m3 0.217 5.65m,p-Xylene 1 02/22/22 23:10 V15298ENM 2.28 J µg/m3 0.157 2.17Xylene (Total)1 02/22/22 23:10 V15298 Surrogate: 4-Bromofluorobenzene 95.8 Limits: 70-130%02/22/22 23:101 ENM V15298 Surrogate: 4-Bromofluorobenzene 97.2 Limits: 70-130%02/22/22 21:4050 ENM V15298 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 13 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-DUP 94423 Matrix: 2/16/2022 0:00 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 42.6 µg/m3 0.202 4.75Acetone 1 02/23/22 00:01 V15298ENM 0.303 J µg/m3 0.0733 1.60Benzene 1 02/23/22 00:01 V15298ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/23/22 00:01 V15298ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/23/22 00:01 V15298ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/23/22 00:01 V15298ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/23/22 00:01 V15298ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/23/22 00:01 V15298ENM 2.25 J µg/m3 0.0608 6.23Carbon Disulfide 1 02/23/22 00:01 V15298ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/23/22 00:01 V15298ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/23/22 00:01 V15298ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/23/22 00:01 V15298ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/23/22 00:01 V15298ENM <0.0864 µg/m3 0.0864 2.44Chloroform 1 02/23/22 00:01 V15298ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/23/22 00:01 V15298ENM 4.69 µg/m3 0.161 3.44Cyclohexane 1 02/23/22 00:01 V15298ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/23/22 00:01 V15298ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/23/22 00:01 V15298ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/23/22 00:01 V15298ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/23/22 00:01 V15298ENM 2.75 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/23/22 00:01 V15298ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/23/22 00:01 V15298ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/23/22 00:01 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 14 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-DUP 94423 Matrix: 2/16/2022 0:00 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/23/22 00:01 V15298ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/23/22 00:01 V15298ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/23/22 00:01 V15298ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/23/22 00:01 V15298ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/23/22 00:01 V15298ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/23/22 00:01 V15298ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/23/22 00:01 V15298ENM 0.951 J µg/m3 0.435 1.801,4-Dioxane 1 02/23/22 00:01 V15298ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/23/22 00:01 V15298ENM 0.399 J µg/m3 0.106 2.17Ethylbenzene 1 02/23/22 00:01 V15298ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 02/23/22 00:01 V15298ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/23/22 00:01 V15298ENM <0.143 µg/m3 0.143 2.05Heptane 1 02/23/22 00:01 V15298ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/23/22 00:01 V15298ENM <0.0472 µg/m3 0.0472 1.76n-Hexane 1 02/23/22 00:01 V15298ENM 3.22 µg/m3 0.285 2.05 2-Hexanone 1 02/23/22 00:01 V15298ENM 23.1 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/23/22 00:01 V15298ENM 5.71 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/23/22 00:01 V15298ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/23/22 00:01 V15298ENM <0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/23/22 00:01 V15298ENM 0.750 J µg/m3 0.489 1.74Methylene Chloride 1 02/23/22 00:01 V15298ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 02/23/22 00:01 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 15 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-DUP 94423 Matrix: 2/16/2022 0:00 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 <0.242 µg/m3 0.242 0.861Propene 1 02/23/22 00:01 V15298ENM 0.405 J µg/m3 0.124 2.13Styrene 1 02/23/22 00:01 V15298ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/23/22 00:01 V15298ENM 6440 µg/m3 9.07 170Tetrachloroethene 50 02/22/22 22:18 V15298ENM 0.779 J µg/m3 0.107 1.47Tetrahydrofuran 1 02/23/22 00:01 V15298ENM 1.82 J µg/m3 0.0901 1.88Toluene 1 02/23/22 00:01 V15298ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/23/22 00:01 V15298ENM 1.84 J µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/23/22 00:01 V15298ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/23/22 00:01 V15298ENM 1.50 J µg/m3 0.199 2.15Trichloroethene 1 02/23/22 00:01 V15298ENM 1.11 J µg/m3 0.130 2.81Trichlorofluoromethane 1 02/23/22 00:01 V15298ENM 1.33 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/23/22 00:01 V15298ENM <0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/23/22 00:01 V15298ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/23/22 00:01 V15298ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/23/22 00:01 V15298ENM 0.677 J µg/m3 0.157 2.17 o-Xylene 1 02/23/22 00:01 V15298ENM 1.48 J µg/m3 0.217 5.65m,p-Xylene 1 02/23/22 00:01 V15298ENM 2.16 J µg/m3 0.157 2.17Xylene (Total)1 02/23/22 00:01 V15298 Surrogate: 4-Bromofluorobenzene 97.8 Limits: 70-130%02/23/22 00:011 ENM V15298 Surrogate: 4-Bromofluorobenzene 97.5 Limits: 70-130%02/22/22 22:1850 ENM V15298 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 16 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-6 94424 Matrix: 2/16/2022 14:55 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15360 02/17/22 09:00 398 µg/m3 4.04 95.0Acetone 20 02/19/22 07:22 V15362ENM 0.393 J µg/m3 0.0733 1.60Benzene 1 02/22/22 16:52 V15298ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/22/22 16:52 V15298ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/22/22 16:52 V15298ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/22/22 16:52 V15298ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/22/22 16:52 V15298ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/22/22 16:52 V15298ENM 3.86 J µg/m3 0.0608 6.23Carbon Disulfide 1 02/22/22 16:52 V15298ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/22/22 16:52 V15298ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/22/22 16:52 V15298ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/22/22 16:52 V15298ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/22/22 16:52 V15298ENM 0.425 J µg/m3 0.0864 2.44Chloroform 1 02/22/22 16:52 V15298ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/22/22 16:52 V15298ENM 8.80 µg/m3 0.161 3.44Cyclohexane 1 02/22/22 16:52 V15298ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/22/22 16:52 V15298ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/22/22 16:52 V15298ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/22/22 16:52 V15298ENM 1.67 J µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/22/22 16:52 V15298ENM 2.62 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/22/22 16:52 V15298ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/22/22 16:52 V15298ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/22/22 16:52 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 17 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-6 94424 Matrix: 2/16/2022 14:55 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15360 02/17/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/22/22 16:52 V15298ENM 1.13 J µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/22/22 16:52 V15298ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/22/22 16:52 V15298ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/22/22 16:52 V15298ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/22/22 16:52 V15298ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/22/22 16:52 V15298ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/22/22 16:52 V15298ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/22/22 16:52 V15298ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/22/22 16:52 V15298ENM 0.903 J µg/m3 0.106 2.17Ethylbenzene 1 02/22/22 16:52 V15298ENM 0.600 J µg/m3 0.128 2.464-Ethyltoluene 1 02/22/22 16:52 V15298ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/22/22 16:52 V15298ENM 1.14 J µg/m3 0.143 2.05Heptane 1 02/22/22 16:52 V15298ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/22/22 16:52 V15298ENM <0.0472 µg/m3 0.0472 1.76n-Hexane 1 02/22/22 16:52 V15298ENM 3.93 µg/m3 0.285 2.05 2-Hexanone 1 02/22/22 16:52 V15298ENM 61.2 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/22/22 16:52 V15298ENM 15.9 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/22/22 16:52 V15298ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/22/22 16:52 V15298ENM 4.48 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/22/22 16:52 V15298ENM 0.938 J µg/m3 0.489 1.74Methylene Chloride 1 02/22/22 16:52 V15298ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 02/22/22 16:52 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 18 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-6 94424 Matrix: 2/16/2022 14:55 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15360 02/17/22 09:00 <0.242 µg/m3 0.242 0.861Propene 1 02/22/22 16:52 V15298ENM 0.835 J µg/m3 0.124 2.13Styrene 1 02/22/22 16:52 V15298ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/22/22 16:52 V15298ENM 647 µg/m3 3.62 67.8Tetrachloroethene 20 02/19/22 07:22 V15362ENM <0.107 µg/m3 0.107 1.47Tetrahydrofuran 1 02/22/22 16:52 V15298ENM 7.22 µg/m3 0.0901 1.88Toluene 1 02/22/22 16:52 V15298ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/22/22 16:52 V15298ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/22/22 16:52 V15298ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/22/22 16:52 V15298ENM 26.9 µg/m3 0.199 2.15Trichloroethene 1 02/22/22 16:52 V15298ENM 1.33 J µg/m3 0.130 2.81Trichlorofluoromethane 1 02/22/22 16:52 V15298ENM 2.91 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/22/22 16:52 V15298ENM 0.732 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/22/22 16:52 V15298ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/22/22 16:52 V15298ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/22/22 16:52 V15298ENM 1.61 J µg/m3 0.157 2.17 o-Xylene 1 02/22/22 16:52 V15298ENM 3.55 J µg/m3 0.217 5.65m,p-Xylene 1 02/22/22 16:52 V15298ENM 5.16 J µg/m3 0.157 2.17Xylene (Total)1 02/22/22 16:52 V15298 Surrogate: 4-Bromofluorobenzene 89.7 Limits: 70-130%02/22/22 16:521 ENM V15298 Surrogate: 4-Bromofluorobenzene 93.6 Limits: 70-130%02/19/22 07:2220 ENM V15362 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 19 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-5 94425 Matrix: 2/17/2022 14:27 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15360 02/17/22 09:00 V15403 02/22/22 09:00 24.4 J µg/m3 4.04 95.0Acetone 20 02/19/22 08:01 V15362ENM 35.9 µg/m3 1.46 31.9Benzene 20 02/19/22 08:01 V15362ENM <2.94 µg/m3 2.94 207Benzyl Chloride 20 02/19/22 08:01 V15362ENM <3.00 µg/m3 3.00 67.0Bromodichloromethane 20 02/19/22 08:01 V15362ENM <3.05 µg/m3 3.05 103Bromoform 20 02/19/22 08:01 V15362ENM <2.30 µg/m3 2.30 38.8Bromomethane 20 02/19/22 08:01 V15362ENM 22.1 µg/m3 6.53 22.11,3-Butadiene 20 02/19/22 08:01 V15362ENM 25.9 J µg/m3 1.22 125Carbon Disulfide 20 02/19/22 08:01 V15362ENM <3.10 µg/m3 3.10 62.9 Carbon Tetrachloride 20 02/19/22 08:01 V15362ENM <2.14 µg/m3 2.14 46.0Chlorobenzene 20 02/19/22 08:01 V15362ENM <4.16 µg/m3 4.16 85.2Chlorodibromomethane 20 02/19/22 08:01 V15362ENM 12.1 J µg/m3 3.28 26.4Chloroethane 20 02/19/22 08:01 V15362ENM <1.73 µg/m3 1.73 48.8Chloroform 20 02/19/22 08:01 V15362ENM <1.34 µg/m3 1.34 20.6Chloromethane 20 02/19/22 08:01 V15362ENM 72.0 µg/m3 3.22 68.8Cyclohexane 20 02/19/22 08:01 V15362ENM <3.02 µg/m3 3.02 76.8 1,2-Dibromoethane 20 02/19/22 08:01 V15362ENM <1.92 µg/m3 1.92 60.11,2-Dichlorobenzene 20 02/19/22 08:01 V15362ENM <3.48 µg/m3 3.48 2411,3-Dichlorobenzene 20 02/19/22 08:01 V15362ENM <3.72 µg/m3 3.72 60.11,4-Dichlorobenzene 20 02/19/22 08:01 V15362ENM <2.68 µg/m3 2.68 49.4Dichlorodifluoromethane 20 02/19/22 08:01 V15362ENM <2.02 µg/m3 2.02 40.51,1-Dichloroethane 20 02/19/22 08:01 V15362ENM <2.58 µg/m3 2.58 40.51,2-Dichloroethane 20 02/19/22 08:01 V15362ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 20 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-5 94425 Matrix: 2/17/2022 14:27 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15360 02/17/22 09:00 V15403 02/22/22 09:00 <2.14 µg/m3 2.14 39.61,1-Dichloroethene 20 02/19/22 08:01 V15362ENM 13500 µg/m3 9.54 198cis-1,2-Dichloroethene 100 02/22/22 17:30 V15406ENM 132 µg/m3 2.16 39.6trans-1,2-Dichloroethene 20 02/19/22 08:01 V15362ENM <4.10 µg/m3 4.10 46.21,2-Dichloropropane 20 02/19/22 08:01 V15362ENM <12.4 µg/m3 12.4 69.91,2-Dichlorotetrafluoroethane 20 02/19/22 08:01 V15362ENM <3.56 µg/m3 3.56 45.4cis-1,3-Dichloropropene 20 02/19/22 08:01 V15362ENM <3.56 µg/m3 3.56 45.4trans-1,3-Dichloropropene 20 02/19/22 08:01 V15362ENM <8.69 µg/m3 8.69 36.01,4-Dioxane 20 02/19/22 08:01 V15362ENM <2.72 µg/m3 2.72 36.0 Ethyl Acetate 20 02/19/22 08:01 V15362ENM 61.6 µg/m3 2.12 43.4Ethylbenzene 20 02/19/22 08:01 V15362ENM 11.4 J µg/m3 2.56 49.24-Ethyltoluene 20 02/19/22 08:01 V15362ENM <11.2 µg/m3 11.2 76.61,1,2-Trichloro-1,2,2-trifluoroethane 20 02/19/22 08:01 V15362ENM 23.8 J µg/m3 2.86 41.0Heptane 20 02/19/22 08:01 V15362ENM <6.62 µg/m3 6.62 107Hexachlorobutadiene 20 02/19/22 08:01 V15362ENM 50.3 µg/m3 0.943 35.2n-Hexane 20 02/19/22 08:01 V15362ENM <5.71 µg/m3 5.71 41.0 2-Hexanone 20 02/19/22 08:01 V15362ENM 7.67 J µg/m3 2.78 98.3Isopropyl Alchohol 20 02/19/22 08:01 V15362ENM 9.73 J µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 02/19/22 08:01 V15362ENM 252 µg/m3 0.673 36.1Methyl tert-butyl ether (MTBE)20 02/19/22 08:01 V15362ENM <2.42 µg/m3 2.42 41.04-Methyl-2-Pentanone 20 02/19/22 08:01 V15362ENM <9.75 µg/m3 9.75 34.7Methylene Chloride 20 02/19/22 08:01 V15362ENM <3.66 µg/m3 3.66 52.4Naphthalene 20 02/19/22 08:01 V15362ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 21 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-5 94425 Matrix: 2/17/2022 14:27 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15360 02/17/22 09:00 V15403 02/22/22 09:00 393 µg/m3 4.84 17.2Propene 20 02/19/22 08:01 V15362ENM <2.48 µg/m3 2.48 42.6Styrene 20 02/19/22 08:01 V15362ENM <2.08 µg/m3 2.08 68.61,1,2,2-Tetrachloroethane 20 02/19/22 08:01 V15362ENM 32.2 J µg/m3 3.62 67.8Tetrachloroethene 20 02/19/22 08:01 V15362ENM <2.14 µg/m3 2.14 29.5Tetrahydrofuran 20 02/19/22 08:01 V15362ENM 224 µg/m3 1.80 37.7Toluene 20 02/19/22 08:01 V15362ENM <4.18 µg/m3 4.18 74.21,2,4-Trichlorobenzene 20 02/19/22 08:01 V15362ENM <2.88 µg/m3 2.88 54.61,1,1-Trichloroethane 20 02/19/22 08:01 V15362ENM <1.75 µg/m3 1.75 54.6 1,1,2-Trichloroethane 20 02/19/22 08:01 V15362ENM <3.98 µg/m3 3.98 43.0Trichloroethene 20 02/19/22 08:01 V15362ENM <2.60 µg/m3 2.60 56.2Trichlorofluoromethane 20 02/19/22 08:01 V15362ENM <2.20 µg/m3 2.20 49.21,2,4-Trimethylbenzene 20 02/19/22 08:01 V15362ENM <4.72 µg/m3 4.72 49.21,3,5-Trimethylbenzene 20 02/19/22 08:01 V15362ENM <4.48 µg/m3 4.48 35.2Vinyl Acetate 20 02/19/22 08:01 V15362ENM 11700 µg/m3 12.7 128Vinyl Chloride 100 02/22/22 17:30 V15406ENM 74.6 µg/m3 3.14 43.4 o-Xylene 20 02/19/22 08:01 V15362ENM 227 µg/m3 4.34 113m,p-Xylene 20 02/19/22 08:01 V15362ENM 302 µg/m3 3.14 43.4Xylene (Total)20 02/19/22 08:01 V15362 Surrogate: 4-Bromofluorobenzene 94.4 Limits: 70-130%02/22/22 17:30100 ENM V15406 Surrogate: 4-Bromofluorobenzene 90.8 Limits: 70-130%02/19/22 08:0120 ENM V15362 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 22 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SG-16 94426 Matrix: 2/17/2022 13:42 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15402 02/25/22 09:00 72.5 µg/m3 0.202 4.75Acetone 1 02/22/22 18:24 V15298ENM 20.9 µg/m3 0.0733 1.60Benzene 1 02/22/22 18:24 V15298ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/22/22 18:24 V15298ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/22/22 18:24 V15298ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/22/22 18:24 V15298ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/22/22 18:24 V15298ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/22/22 18:24 V15298ENM 12.0 µg/m3 0.0608 6.23Carbon Disulfide 1 02/22/22 18:24 V15298ENM 1.26 J µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/22/22 18:24 V15298ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/22/22 18:24 V15298ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/22/22 18:24 V15298ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/22/22 18:24 V15298ENM <0.0864 µg/m3 0.0864 2.44Chloroform 1 02/22/22 18:24 V15298ENM 0.977 J µg/m3 0.0673 1.03Chloromethane 1 02/22/22 18:24 V15298ENM 21.1 µg/m3 0.161 3.44Cyclohexane 1 02/22/22 18:24 V15298ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/22/22 18:24 V15298ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/22/22 18:24 V15298ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/22/22 18:24 V15298ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/22/22 18:24 V15298ENM 3.16 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/22/22 18:24 V15298ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/22/22 18:24 V15298ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/22/22 18:24 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 23 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SG-16 94426 Matrix: 2/17/2022 13:42 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15402 02/25/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/22/22 18:24 V15298ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/22/22 18:24 V15298ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/22/22 18:24 V15298ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/22/22 18:24 V15298ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/22/22 18:24 V15298ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/22/22 18:24 V15298ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/22/22 18:24 V15298ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/22/22 18:24 V15298ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/22/22 18:24 V15298ENM 15.8 µg/m3 0.106 2.17Ethylbenzene 1 02/22/22 18:24 V15298ENM 1.96 J µg/m3 0.128 2.464-Ethyltoluene 1 02/22/22 18:24 V15298ENM 1.12 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/22/22 18:24 V15298ENM 26.1 µg/m3 0.143 2.05Heptane 1 02/22/22 18:24 V15298ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/22/22 18:24 V15298ENM 57.0 µg/m3 0.0472 1.76n-Hexane 1 02/22/22 18:24 V15298ENM <0.285 µg/m3 0.285 2.05 2-Hexanone 1 02/22/22 18:24 V15298ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/22/22 18:24 V15298ENM 15.6 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/22/22 18:24 V15298ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/22/22 18:24 V15298ENM 3.56 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/22/22 18:24 V15298ENM 2.17 µg/m3 0.489 1.74Methylene Chloride 1 02/22/22 18:24 V15298ENM 2.91 µg/m3 0.183 2.62Naphthalene 1 02/22/22 18:24 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 24 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SG-16 94426 Matrix: 2/17/2022 13:42 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15402 02/25/22 09:00 152 µg/m3 1.21 4.30Propene 5 02/25/22 11:39 V15405ENM 1.58 J µg/m3 0.124 2.13Styrene 1 02/22/22 18:24 V15298ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/22/22 18:24 V15298ENM 2.44 J µg/m3 0.181 3.39Tetrachloroethene 1 02/22/22 18:24 V15298ENM 1.57 µg/m3 0.107 1.47Tetrahydrofuran 1 02/22/22 18:24 V15298ENM 259 µg/m3 0.450 9.42Toluene 5 02/25/22 11:39 V15405ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/22/22 18:24 V15298ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/22/22 18:24 V15298ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/22/22 18:24 V15298ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/22/22 18:24 V15298ENM 2.57 J µg/m3 0.130 2.81Trichlorofluoromethane 1 02/22/22 18:24 V15298ENM 5.67 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/22/22 18:24 V15298ENM 1.97 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/22/22 18:24 V15298ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/22/22 18:24 V15298ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/22/22 18:24 V15298ENM 15.2 µg/m3 0.157 2.17 o-Xylene 1 02/22/22 18:24 V15298ENM 55.0 µg/m3 0.217 5.65m,p-Xylene 1 02/22/22 18:24 V15298ENM 70.2 µg/m3 0.157 2.17Xylene (Total)1 02/22/22 18:24 V15298 Surrogate: 4-Bromofluorobenzene 91.1 Limits: 70-130%02/22/22 18:241 ENM V15298 Surrogate: 4-Bromofluorobenzene 92.7 Limits: 70-130%02/25/22 11:395 ENM V15405 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 25 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-4 94427 Matrix: 2/16/2022 14:09 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 33.1 µg/m3 0.202 4.75Acetone 1 02/22/22 19:16 V15298ENM 0.326 J µg/m3 0.0733 1.60Benzene 1 02/22/22 19:16 V15298ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/22/22 19:16 V15298ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/22/22 19:16 V15298ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/22/22 19:16 V15298ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/22/22 19:16 V15298ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/22/22 19:16 V15298ENM 1.93 J µg/m3 0.0608 6.23Carbon Disulfide 1 02/22/22 19:16 V15298ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/22/22 19:16 V15298ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/22/22 19:16 V15298ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/22/22 19:16 V15298ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/22/22 19:16 V15298ENM <0.0864 µg/m3 0.0864 2.44Chloroform 1 02/22/22 19:16 V15298ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/22/22 19:16 V15298ENM 6.81 µg/m3 0.161 3.44Cyclohexane 1 02/22/22 19:16 V15298ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/22/22 19:16 V15298ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/22/22 19:16 V15298ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/22/22 19:16 V15298ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/22/22 19:16 V15298ENM 2.76 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/22/22 19:16 V15298ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/22/22 19:16 V15298ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/22/22 19:16 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 26 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-4 94427 Matrix: 2/16/2022 14:09 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/22/22 19:16 V15298ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/22/22 19:16 V15298ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/22/22 19:16 V15298ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/22/22 19:16 V15298ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/22/22 19:16 V15298ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/22/22 19:16 V15298ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/22/22 19:16 V15298ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/22/22 19:16 V15298ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/22/22 19:16 V15298ENM 0.577 J µg/m3 0.106 2.17Ethylbenzene 1 02/22/22 19:16 V15298ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 02/22/22 19:16 V15298ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/22/22 19:16 V15298ENM <0.143 µg/m3 0.143 2.05Heptane 1 02/22/22 19:16 V15298ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/22/22 19:16 V15298ENM <0.0472 µg/m3 0.0472 1.76n-Hexane 1 02/22/22 19:16 V15298ENM 3.50 µg/m3 0.285 2.05 2-Hexanone 1 02/22/22 19:16 V15298ENM 2.11 JB µg/m3 0.139 4.92Isopropyl Alchohol 1 02/22/22 19:16 V15298ENM 3.35 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/22/22 19:16 V15298ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/22/22 19:16 V15298ENM 1.01 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/22/22 19:16 V15298ENM 0.986 J µg/m3 0.489 1.74Methylene Chloride 1 02/22/22 19:16 V15298ENM 2.70 µg/m3 0.183 2.62Naphthalene 1 02/22/22 19:16 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 27 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-4 94427 Matrix: 2/16/2022 14:09 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 <0.242 µg/m3 0.242 0.861Propene 1 02/22/22 19:16 V15298ENM 0.575 J µg/m3 0.124 2.13Styrene 1 02/22/22 19:16 V15298ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/22/22 19:16 V15298ENM 3.37 J µg/m3 0.181 3.39Tetrachloroethene 1 02/22/22 19:16 V15298ENM 0.457 J µg/m3 0.107 1.47Tetrahydrofuran 1 02/22/22 19:16 V15298ENM 2.72 µg/m3 0.0901 1.88Toluene 1 02/22/22 19:16 V15298ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/22/22 19:16 V15298ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/22/22 19:16 V15298ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/22/22 19:16 V15298ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/22/22 19:16 V15298ENM 1.43 J µg/m3 0.130 2.81Trichlorofluoromethane 1 02/22/22 19:16 V15298ENM 1.68 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/22/22 19:16 V15298ENM 0.408 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/22/22 19:16 V15298ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/22/22 19:16 V15298ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/22/22 19:16 V15298ENM 1.15 J µg/m3 0.157 2.17 o-Xylene 1 02/22/22 19:16 V15298ENM 2.19 J µg/m3 0.217 5.65m,p-Xylene 1 02/22/22 19:16 V15298ENM 3.34 J µg/m3 0.157 2.17Xylene (Total)1 02/22/22 19:16 V15298 Surrogate: 4-Bromofluorobenzene 95.8 Limits: 70-130%02/22/22 19:161 ENM V15298 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 28 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-1 94428 Matrix: 2/17/2022 13:04 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15360 02/17/22 09:00 30.1 µg/m3 0.202 4.75Acetone 1 02/22/22 20:10 V15298ENM 0.588 J µg/m3 0.0733 1.60Benzene 1 02/22/22 20:10 V15298ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/22/22 20:10 V15298ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/22/22 20:10 V15298ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/22/22 20:10 V15298ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/22/22 20:10 V15298ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/22/22 20:10 V15298ENM 2.06 J µg/m3 0.0608 6.23Carbon Disulfide 1 02/22/22 20:10 V15298ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/22/22 20:10 V15298ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/22/22 20:10 V15298ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/22/22 20:10 V15298ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/22/22 20:10 V15298ENM 12.1 µg/m3 0.0864 2.44Chloroform 1 02/22/22 20:10 V15298ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/22/22 20:10 V15298ENM 5.42 µg/m3 0.161 3.44Cyclohexane 1 02/22/22 20:10 V15298ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/22/22 20:10 V15298ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/22/22 20:10 V15298ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/22/22 20:10 V15298ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/22/22 20:10 V15298ENM 2.77 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/22/22 20:10 V15298ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/22/22 20:10 V15298ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/22/22 20:10 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 29 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-1 94428 Matrix: 2/17/2022 13:04 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15360 02/17/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/22/22 20:10 V15298ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/22/22 20:10 V15298ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/22/22 20:10 V15298ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/22/22 20:10 V15298ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/22/22 20:10 V15298ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/22/22 20:10 V15298ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/22/22 20:10 V15298ENM 1.86 µg/m3 0.435 1.801,4-Dioxane 1 02/22/22 20:10 V15298ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/22/22 20:10 V15298ENM 1.18 J µg/m3 0.106 2.17Ethylbenzene 1 02/22/22 20:10 V15298ENM 0.555 J µg/m3 0.128 2.464-Ethyltoluene 1 02/22/22 20:10 V15298ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/22/22 20:10 V15298ENM 0.750 J µg/m3 0.143 2.05Heptane 1 02/22/22 20:10 V15298ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/22/22 20:10 V15298ENM 0.779 J µg/m3 0.0472 1.76n-Hexane 1 02/22/22 20:10 V15298ENM <0.285 µg/m3 0.285 2.05 2-Hexanone 1 02/22/22 20:10 V15298ENM 4.99 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/22/22 20:10 V15298ENM 1.70 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/22/22 20:10 V15298ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/22/22 20:10 V15298ENM <0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/22/22 20:10 V15298ENM 0.841 J µg/m3 0.489 1.74Methylene Chloride 1 02/22/22 20:10 V15298ENM 2.81 µg/m3 0.183 2.62Naphthalene 1 02/22/22 20:10 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 30 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-1 94428 Matrix: 2/17/2022 13:04 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15360 02/17/22 09:00 <0.242 µg/m3 0.242 0.861Propene 1 02/22/22 20:10 V15298ENM 0.596 J µg/m3 0.124 2.13Styrene 1 02/22/22 20:10 V15298ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/22/22 20:10 V15298ENM 523 µg/m3 3.62 67.8Tetrachloroethene 20 02/19/22 10:44 V15362ENM <0.107 µg/m3 0.107 1.47Tetrahydrofuran 1 02/22/22 20:10 V15298ENM 5.18 µg/m3 0.0901 1.88Toluene 1 02/22/22 20:10 V15298ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/22/22 20:10 V15298ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/22/22 20:10 V15298ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/22/22 20:10 V15298ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/22/22 20:10 V15298ENM 1.65 J µg/m3 0.130 2.81Trichlorofluoromethane 1 02/22/22 20:10 V15298ENM 2.81 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/22/22 20:10 V15298ENM 0.703 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/22/22 20:10 V15298ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/22/22 20:10 V15298ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/22/22 20:10 V15298ENM 1.97 J µg/m3 0.157 2.17 o-Xylene 1 02/22/22 20:10 V15298ENM 4.45 J µg/m3 0.217 5.65m,p-Xylene 1 02/22/22 20:10 V15298ENM 6.42 J µg/m3 0.157 2.17Xylene (Total)1 02/22/22 20:10 V15298 Surrogate: 4-Bromofluorobenzene 94.7 Limits: 70-130%02/22/22 20:101 ENM V15298 Surrogate: 4-Bromofluorobenzene 93.9 Limits: 70-130%02/19/22 10:4420 ENM V15362 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 31 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-3 94429 Matrix: 2/16/2022 13:32 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15360 02/17/22 09:00 33.5 µg/m3 0.202 4.75Acetone 1 02/22/22 21:02 V15298ENM 0.668 J µg/m3 0.0733 1.60Benzene 1 02/22/22 21:02 V15298ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/22/22 21:02 V15298ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/22/22 21:02 V15298ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/22/22 21:02 V15298ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/22/22 21:02 V15298ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/22/22 21:02 V15298ENM 0.532 J µg/m3 0.0608 6.23Carbon Disulfide 1 02/22/22 21:02 V15298ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/22/22 21:02 V15298ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/22/22 21:02 V15298ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/22/22 21:02 V15298ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/22/22 21:02 V15298ENM <0.0864 µg/m3 0.0864 2.44Chloroform 1 02/22/22 21:02 V15298ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/22/22 21:02 V15298ENM 6.91 µg/m3 0.161 3.44Cyclohexane 1 02/22/22 21:02 V15298ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/22/22 21:02 V15298ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/22/22 21:02 V15298ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/22/22 21:02 V15298ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/22/22 21:02 V15298ENM 2.72 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/22/22 21:02 V15298ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/22/22 21:02 V15298ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/22/22 21:02 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 32 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-3 94429 Matrix: 2/16/2022 13:32 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15360 02/17/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/22/22 21:02 V15298ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/22/22 21:02 V15298ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/22/22 21:02 V15298ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/22/22 21:02 V15298ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/22/22 21:02 V15298ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/22/22 21:02 V15298ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/22/22 21:02 V15298ENM 4.04 µg/m3 0.435 1.801,4-Dioxane 1 02/22/22 21:02 V15298ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/22/22 21:02 V15298ENM 2.09 J µg/m3 0.106 2.17Ethylbenzene 1 02/22/22 21:02 V15298ENM 0.777 J µg/m3 0.128 2.464-Ethyltoluene 1 02/22/22 21:02 V15298ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/22/22 21:02 V15298ENM 0.533 J µg/m3 0.143 2.05Heptane 1 02/22/22 21:02 V15298ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/22/22 21:02 V15298ENM 1.10 J µg/m3 0.0472 1.76n-Hexane 1 02/22/22 21:02 V15298ENM 3.28 µg/m3 0.285 2.05 2-Hexanone 1 02/22/22 21:02 V15298ENM 21.6 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/22/22 21:02 V15298ENM 2.94 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/22/22 21:02 V15298ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/22/22 21:02 V15298ENM 1.18 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/22/22 21:02 V15298ENM 0.604 J µg/m3 0.489 1.74Methylene Chloride 1 02/22/22 21:02 V15298ENM 2.75 µg/m3 0.183 2.62Naphthalene 1 02/22/22 21:02 V15298ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 33 of 52 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-049-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Haley Martin Charlotte ACO-002 Received : 02/18/2022 Harrelson Ford Report Date : 02/25/2022 Sample ID : Lab No : Sampled:SSV-3 94429 Matrix: 2/16/2022 13:32 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V15292 02/22/22 09:00 V15360 02/17/22 09:00 21.0 µg/m3 0.242 0.861Propene 1 02/22/22 21:02 V15298ENM 0.741 J µg/m3 0.124 2.13Styrene 1 02/22/22 21:02 V15298ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/22/22 21:02 V15298ENM 1090 µg/m3 3.62 67.8Tetrachloroethene 20 02/19/22 11:20 V15362ENM <0.107 µg/m3 0.107 1.47Tetrahydrofuran 1 02/22/22 21:02 V15298ENM 4.02 µg/m3 0.0901 1.88Toluene 1 02/22/22 21:02 V15298ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/22/22 21:02 V15298ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/22/22 21:02 V15298ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/22/22 21:02 V15298ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/22/22 21:02 V15298ENM 1.32 J µg/m3 0.130 2.81Trichlorofluoromethane 1 02/22/22 21:02 V15298ENM 4.42 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/22/22 21:02 V15298ENM 1.32 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/22/22 21:02 V15298ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/22/22 21:02 V15298ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/22/22 21:02 V15298ENM 12.6 µg/m3 0.157 2.17 o-Xylene 1 02/22/22 21:02 V15298ENM 12.7 µg/m3 0.217 5.65m,p-Xylene 1 02/22/22 21:02 V15298ENM 25.3 µg/m3 0.157 2.17Xylene (Total)1 02/22/22 21:02 V15298 Surrogate: 4-Bromofluorobenzene 95.0 Limits: 70-130%02/22/22 21:021 ENM V15298 Surrogate: 4-Bromofluorobenzene 90.5 Limits: 70-130%02/19/22 11:2020 ENM V15362 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 34 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15298QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15292 Associated Lab Samples: 94422, 94423, 94424, 94426, 94427, 94428, 94429 LRB-V15292 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/22/22 12:434.750.2020.321µg/m3Acetone 02/22/22 12:431.600.0733<0.0733µg/m3Benzene 02/22/22 12:4310.40.148<0.148µg/m3Benzyl Chloride 02/22/22 12:433.350.150<0.150µg/m3Bromodichloromethane 02/22/22 12:435.170.153<0.153µg/m3Bromoform 02/22/22 12:431.940.115<0.115µg/m3Bromomethane 02/22/22 12:431.110.328<0.328µg/m31,3-Butadiene 02/22/22 12:436.230.0608<0.0608µg/m3Carbon Disulfide 02/22/22 12:433.150.155<0.155µg/m3Carbon Tetrachloride 02/22/22 12:432.300.107<0.107µg/m3Chlorobenzene 02/22/22 12:434.260.208<0.208µg/m3Chlorodibromomethane 02/22/22 12:431.320.164<0.164µg/m3Chloroethane 02/22/22 12:432.440.0864<0.0864µg/m3Chloroform 02/22/22 12:431.030.0673<0.0673µg/m3Chloromethane 02/22/22 12:433.440.161<0.161µg/m3Cyclohexane 02/22/22 12:433.840.151<0.151µg/m31,2-Dibromoethane 02/22/22 12:433.010.0963<0.0963µg/m31,2-Dichlorobenzene 02/22/22 12:4312.00.174<0.174µg/m31,3-Dichlorobenzene 02/22/22 12:433.010.186<0.186µg/m31,4-Dichlorobenzene 02/22/22 12:432.470.134<0.134µg/m3Dichlorodifluoromethane 02/22/22 12:432.020.101<0.101µg/m31,1-Dichloroethane 02/22/22 12:432.020.129<0.129µg/m31,2-Dichloroethane 02/22/22 12:431.980.107<0.107µg/m31,1-Dichloroethene 02/22/22 12:431.980.0955<0.0955µg/m3cis-1,2-Dichloroethene 02/22/22 12:431.980.108<0.108µg/m3trans-1,2-Dichloroethene 02/22/22 12:432.310.205<0.205µg/m31,2-Dichloropropane 02/22/22 12:433.500.623<0.623µg/m31,2-Dichlorotetrafluoroethane Page 1 of 12Date:02/25/2022 03:46 PM Page 35 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15298QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15292 Associated Lab Samples: 94422, 94423, 94424, 94426, 94427, 94428, 94429 LRB-V15292 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/22/22 12:432.270.178<0.178µg/m3cis-1,3-Dichloropropene 02/22/22 12:432.270.178<0.178µg/m3trans-1,3-Dichloropropene 02/22/22 12:431.800.435<0.435µg/m31,4-Dioxane 02/22/22 12:431.800.136<0.136µg/m3Ethyl Acetate 02/22/22 12:432.170.106<0.106µg/m3Ethylbenzene 02/22/22 12:432.460.128<0.128µg/m34-Ethyltoluene 02/22/22 12:433.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 02/22/22 12:432.050.143<0.143µg/m3Heptane 02/22/22 12:435.330.330<0.330µg/m3Hexachlorobutadiene 02/22/22 12:431.760.0472<0.0472µg/m3n-Hexane 02/22/22 12:432.050.285<0.285µg/m32-Hexanone 02/22/22 12:434.920.1390.339µg/m3Isopropyl Alchohol 02/22/22 12:431.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK) 02/22/22 12:431.800.0336<0.0336µg/m3Methyl tert-butyl ether (MTBE) 02/22/22 12:432.050.121<0.121µg/m34-Methyl-2-Pentanone 02/22/22 12:431.740.489<0.489µg/m3Methylene Chloride 02/22/22 12:432.620.183<0.183µg/m3Naphthalene 02/22/22 12:430.8610.242<0.242µg/m3Propene 02/22/22 12:432.130.124<0.124µg/m3Styrene 02/22/22 12:433.430.104<0.104µg/m31,1,2,2-Tetrachloroethane 02/22/22 12:433.390.181<0.181µg/m3Tetrachloroethene 02/22/22 12:431.470.107<0.107µg/m3Tetrahydrofuran 02/22/22 12:431.880.0901<0.0901µg/m3Toluene 02/22/22 12:433.710.209<0.209µg/m31,2,4-Trichlorobenzene 02/22/22 12:432.730.144<0.144µg/m31,1,1-Trichloroethane 02/22/22 12:432.730.0877<0.0877µg/m31,1,2-Trichloroethane 02/22/22 12:432.150.199<0.199µg/m3Trichloroethene Page 2 of 12Date:02/25/2022 03:46 PM Page 36 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15298QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15292 Associated Lab Samples: 94422, 94423, 94424, 94426, 94427, 94428, 94429 LRB-V15292 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/22/22 12:432.810.130<0.130µg/m3Trichlorofluoromethane 02/22/22 12:432.460.110<0.110µg/m31,2,4-Trimethylbenzene 02/22/22 12:432.460.236<0.236µg/m31,3,5-Trimethylbenzene 02/22/22 12:431.760.224<0.224µg/m3Vinyl Acetate 02/22/22 12:431.280.127<0.127µg/m3Vinyl Chloride 02/22/22 12:432.170.157<0.157µg/m3o-Xylene 02/22/22 12:435.650.217<0.217µg/m3m,p-Xylene 02/22/22 12:434-Bromofluorobenzene (S)97.7 70-130 LCS-V15292Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10112.011.9µg/m3Acetone 70-130 10416.616.0µg/m3Benzene 70-130 11229.025.9µg/m3Benzyl Chloride 70-130 10735.933.5µg/m3Bromodichloromethane 70-130 11157.251.7µg/m3Bromoform 70-130 10620.619.4µg/m3Bromomethane 70-130 10211.311.1µg/m31,3-Butadiene 70-130 11317.615.6µg/m3Carbon Disulfide 70-130 10432.831.5µg/m3Carbon Tetrachloride 70-130 11025.323.0µg/m3Chlorobenzene 70-130 11348.342.6µg/m3Chlorodibromomethane 70-130 10313.613.2µg/m3Chloroethane 70-130 10325.224.4µg/m3Chloroform 70-130 10711.010.3µg/m3Chloromethane 70-130 10017.217.2µg/m3Cyclohexane 70-130 Page 3 of 12Date:02/25/2022 03:46 PM Page 37 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15298QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15292 LCS-V15292Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 11343.238.4µg/m31,2-Dibromoethane 70-130 11233.730.1µg/m31,2-Dichlorobenzene 70-130 10932.730.1µg/m31,3-Dichlorobenzene 70-130 10732.130.1µg/m31,4-Dichlorobenzene 70-130 10325.524.7µg/m3Dichlorodifluoromethane 70-130 10922.020.2µg/m31,1-Dichloroethane 70-130 10220.720.2µg/m31,2-Dichloroethane 70-130 11122.019.8µg/m31,1-Dichloroethene 70-130 10921.619.8µg/m3cis-1,2-Dichloroethene 70-130 11121.919.8µg/m3trans-1,2-Dichloroethene 70-130 10524.223.1µg/m31,2-Dichloropropane 70-130 10335.935.0µg/m31,2-Dichlorotetrafluoroethane 70-130 11125.222.7µg/m3cis-1,3-Dichloropropene 70-130 11125.222.7µg/m3trans-1,3-Dichloropropene 70-130 11921.418.0µg/m31,4-Dioxane 70-130 11320.418.0µg/m3Ethyl Acetate 70-130 10823.521.7µg/m3Ethylbenzene 70-130 11428.024.6µg/m34-Ethyltoluene 70-130 10138.638.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130 10521.620.5µg/m3Heptane 70-130 11360.053.3µg/m3Hexachlorobutadiene 70-130 10518.417.6µg/m3n-Hexane 70-130 10722.020.5µg/m32-Hexanone 70-130 97.512.012.3µg/m3Isopropyl Alchohol 70-130 10615.714.8µg/m3Methyl Ethyl Ketone (MEK)70-130 99.417.918.0µg/m3Methyl tert-butyl ether (MTBE)70-130 11223.020.5µg/m34-Methyl-2-Pentanone 70-130 Page 4 of 12Date:02/25/2022 03:46 PM Page 38 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15298QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15292 LCS-V15292Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10017.417.4µg/m3Methylene Chloride 70-130 11129.226.2µg/m3Naphthalene 70-130 1008.648.61µg/m3Propene 70-130 11223.921.3µg/m3Styrene 70-130 11338.834.3µg/m31,1,2,2-Tetrachloroethane 70-130 10736.233.9µg/m3Tetrachloroethene 70-130 10515.414.7µg/m3Tetrahydrofuran 70-130 10620.018.8µg/m3Toluene 70-130 11341.937.1µg/m31,2,4-Trichlorobenzene 70-130 98.526.927.3µg/m31,1,1-Trichloroethane 70-130 11029.927.3µg/m31,1,2-Trichloroethane 70-130 95.125.626.9µg/m3Trichloroethene 70-130 10629.928.1µg/m3Trichlorofluoromethane 70-130 11728.824.6µg/m31,2,4-Trimethylbenzene 70-130 11628.624.6µg/m31,3,5-Trimethylbenzene 70-130 11019.317.6µg/m3Vinyl Acetate 70-130 10313.212.8µg/m3Vinyl Chloride 70-130 11023.821.7µg/m3o-Xylene 70-130 10947.443.4µg/m3m,p-Xylene 70-130 1014-Bromofluorobenzene (S)70-130 Page 5 of 12Date:02/25/2022 03:46 PM Page 39 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15362QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15360 Associated Lab Samples: 94424, 94425, 94428, 94429 LRB-V15360 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/18/22 23:414.750.2020.230µg/m3Acetone 02/18/22 23:411.600.0733<0.0733µg/m3Benzene 02/18/22 23:4110.40.148<0.148µg/m3Benzyl Chloride 02/18/22 23:413.350.150<0.150µg/m3Bromodichloromethane 02/18/22 23:415.170.153<0.153µg/m3Bromoform 02/18/22 23:411.940.115<0.115µg/m3Bromomethane 02/18/22 23:411.110.328<0.328µg/m31,3-Butadiene 02/18/22 23:416.230.06081.92µg/m3Carbon Disulfide 02/18/22 23:413.150.155<0.155µg/m3Carbon Tetrachloride 02/18/22 23:412.300.107<0.107µg/m3Chlorobenzene 02/18/22 23:414.260.208<0.208µg/m3Chlorodibromomethane 02/18/22 23:411.320.164<0.164µg/m3Chloroethane 02/18/22 23:412.440.0864<0.0864µg/m3Chloroform 02/18/22 23:411.030.0673<0.0673µg/m3Chloromethane 02/18/22 23:413.440.161<0.161µg/m3Cyclohexane 02/18/22 23:413.840.151<0.151µg/m31,2-Dibromoethane 02/18/22 23:413.010.0963<0.0963µg/m31,2-Dichlorobenzene 02/18/22 23:4112.00.174<0.174µg/m31,3-Dichlorobenzene 02/18/22 23:413.010.186<0.186µg/m31,4-Dichlorobenzene 02/18/22 23:412.470.134<0.134µg/m3Dichlorodifluoromethane 02/18/22 23:412.020.101<0.101µg/m31,1-Dichloroethane 02/18/22 23:412.020.129<0.129µg/m31,2-Dichloroethane 02/18/22 23:411.980.107<0.107µg/m31,1-Dichloroethene 02/18/22 23:411.980.108<0.108µg/m3trans-1,2-Dichloroethene 02/18/22 23:412.310.205<0.205µg/m31,2-Dichloropropane 02/18/22 23:413.500.623<0.623µg/m31,2-Dichlorotetrafluoroethane 02/18/22 23:412.270.178<0.178µg/m3cis-1,3-Dichloropropene Page 6 of 12Date:02/25/2022 03:46 PM Page 40 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15362QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15360 Associated Lab Samples: 94424, 94425, 94428, 94429 LRB-V15360 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/18/22 23:412.270.178<0.178µg/m3trans-1,3-Dichloropropene 02/18/22 23:411.800.435<0.435µg/m31,4-Dioxane 02/18/22 23:411.800.136<0.136µg/m3Ethyl Acetate 02/18/22 23:412.170.106<0.106µg/m3Ethylbenzene 02/18/22 23:412.460.128<0.128µg/m34-Ethyltoluene 02/18/22 23:413.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 02/18/22 23:412.050.143<0.143µg/m3Heptane 02/18/22 23:415.330.330<0.330µg/m3Hexachlorobutadiene 02/18/22 23:411.760.0472<0.0472µg/m3n-Hexane 02/18/22 23:412.050.285<0.285µg/m32-Hexanone 02/18/22 23:414.920.1390.300µg/m3Isopropyl Alchohol 02/18/22 23:411.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK) 02/18/22 23:411.800.0336<0.0336µg/m3Methyl tert-butyl ether (MTBE) 02/18/22 23:412.050.121<0.121µg/m34-Methyl-2-Pentanone 02/18/22 23:411.740.489<0.489µg/m3Methylene Chloride 02/18/22 23:412.620.183<0.183µg/m3Naphthalene 02/18/22 23:410.8610.242<0.242µg/m3Propene 02/18/22 23:412.130.124<0.124µg/m3Styrene 02/18/22 23:413.430.104<0.104µg/m31,1,2,2-Tetrachloroethane 02/18/22 23:413.390.181<0.181µg/m3Tetrachloroethene 02/18/22 23:411.470.107<0.107µg/m3Tetrahydrofuran 02/18/22 23:411.880.0901<0.0901µg/m3Toluene 02/18/22 23:413.710.209<0.209µg/m31,2,4-Trichlorobenzene 02/18/22 23:412.730.144<0.144µg/m31,1,1-Trichloroethane 02/18/22 23:412.730.0877<0.0877µg/m31,1,2-Trichloroethane 02/18/22 23:412.150.199<0.199µg/m3Trichloroethene 02/18/22 23:412.810.130<0.130µg/m3Trichlorofluoromethane Page 7 of 12Date:02/25/2022 03:46 PM Page 41 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15362QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15360 Associated Lab Samples: 94424, 94425, 94428, 94429 LRB-V15360 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/18/22 23:412.460.110<0.110µg/m31,2,4-Trimethylbenzene 02/18/22 23:412.460.236<0.236µg/m31,3,5-Trimethylbenzene 02/18/22 23:411.760.224<0.224µg/m3Vinyl Acetate 02/18/22 23:412.170.157<0.157µg/m3o-Xylene 02/18/22 23:415.650.217<0.217µg/m3m,p-Xylene 02/18/22 23:414-Bromofluorobenzene (S)96.6 70-130 LCS-V15360Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 94.111.211.9µg/m3Acetone 70-130 98.715.816.0µg/m3Benzene 70-130 10326.825.9µg/m3Benzyl Chloride 70-130 10033.633.5µg/m3Bromodichloromethane 70-130 10152.451.7µg/m3Bromoform 70-130 10119.619.4µg/m3Bromomethane 70-130 92.710.311.1µg/m31,3-Butadiene 70-130 10616.515.6µg/m3Carbon Disulfide 70-130 98.030.931.5µg/m3Carbon Tetrachloride 70-130 10223.523.0µg/m3Chlorobenzene 70-130 10444.242.6µg/m3Chlorodibromomethane 70-130 94.612.513.2µg/m3Chloroethane 70-130 98.724.124.4µg/m3Chloroform 70-130 10410.710.3µg/m3Chloromethane 70-130 94.716.317.2µg/m3Cyclohexane 70-130 10439.938.4µg/m31,2-Dibromoethane 70-130 10331.130.1µg/m31,2-Dichlorobenzene 70-130 Page 8 of 12Date:02/25/2022 03:46 PM Page 42 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15362QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15360 LCS-V15360Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10030.230.1µg/m31,3-Dichlorobenzene 70-130 97.329.330.1µg/m31,4-Dichlorobenzene 70-130 95.923.724.7µg/m3Dichlorodifluoromethane 70-130 10320.920.2µg/m31,1-Dichloroethane 70-130 95.519.320.2µg/m31,2-Dichloroethane 70-130 10520.719.8µg/m31,1-Dichloroethene 70-130 10520.819.8µg/m3trans-1,2-Dichloroethene 70-130 93.921.723.1µg/m31,2-Dichloropropane 70-130 98.234.435.0µg/m31,2-Dichlorotetrafluoroethane 70-130 10323.322.7µg/m3cis-1,3-Dichloropropene 70-130 10323.322.7µg/m3trans-1,3-Dichloropropene 70-130 10919.618.0µg/m31,4-Dioxane 70-130 10619.018.0µg/m3Ethyl Acetate 70-130 10021.721.7µg/m3Ethylbenzene 70-130 10525.824.6µg/m34-Ethyltoluene 70-130 96.336.938.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130 98.520.220.5µg/m3Heptane 70-130 10455.253.3µg/m3Hexachlorobutadiene 70-130 10117.817.6µg/m3n-Hexane 70-130 10120.720.5µg/m32-Hexanone 70-130 91.011.212.3µg/m3Isopropyl Alchohol 70-130 10315.314.8µg/m3Methyl Ethyl Ketone (MEK)70-130 97.217.518.0µg/m3Methyl tert-butyl ether (MTBE)70-130 10621.720.5µg/m34-Methyl-2-Pentanone 70-130 97.116.917.4µg/m3Methylene Chloride 70-130 10226.826.2µg/m3Naphthalene 70-130 92.37.958.61µg/m3Propene 70-130 Page 9 of 12Date:02/25/2022 03:46 PM Page 43 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15362QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15360 LCS-V15360Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10422.221.3µg/m3Styrene 70-130 10134.634.3µg/m31,1,2,2-Tetrachloroethane 70-130 10234.733.9µg/m3Tetrachloroethene 70-130 97.914.414.7µg/m3Tetrahydrofuran 70-130 10018.818.8µg/m3Toluene 70-130 11843.637.1µg/m31,2,4-Trichlorobenzene 70-130 94.525.827.3µg/m31,1,1-Trichloroethane 70-130 10027.427.3µg/m31,1,2-Trichloroethane 70-130 94.025.326.9µg/m3Trichloroethene 70-130 10128.328.1µg/m3Trichlorofluoromethane 70-130 10626.124.6µg/m31,2,4-Trimethylbenzene 70-130 10726.224.6µg/m31,3,5-Trimethylbenzene 70-130 11119.617.6µg/m3Vinyl Acetate 70-130 10222.221.7µg/m3o-Xylene 70-130 10043.543.4µg/m3m,p-Xylene 70-130 1014-Bromofluorobenzene (S)70-130 Page 10 of 12Date:02/25/2022 03:46 PM Page 44 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15405QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15402 Associated Lab Samples: 94426 LRB-V15402 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/25/22 10:400.8610.242<0.242µg/m3Propene 02/25/22 10:401.880.0901<0.0901µg/m3Toluene 02/25/22 10:404-Bromofluorobenzene (S)96.0 70-130 LCS-V15402Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1159.948.61µg/m3Propene 70-130 11321.218.8µg/m3Toluene 70-130 99.74-Bromofluorobenzene (S)70-130 Page 11 of 12Date:02/25/2022 03:46 PM Page 45 of 52 Quality Control Data 22-049-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) Harrelson Ford QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V15406QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V15403 Associated Lab Samples: 94425 LRB-V15403 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/22/22 12:431.980.0955<0.0955µg/m3cis-1,2-Dichloroethene 02/22/22 12:431.280.127<0.127µg/m3Vinyl Chloride 02/22/22 12:434-Bromofluorobenzene (S)97.7 70-130 LCS-V15403Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10921.619.8µg/m3cis-1,2-Dichloroethene 70-130 10313.212.8µg/m3Vinyl Chloride 70-130 1014-Bromofluorobenzene (S)70-130 Page 12 of 12Date:02/25/2022 03:46 PM Page 46 of 52 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:22-049-0004 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:N/A Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Sarah J. Locklear Date & Time:02/18/2022 11:12:42 Special precautions or instructions included? Comments: Page 47 of 52 Page 48 of 52 Page 49 of 52 Page 50 of 52 Page 51 of 52 Page 52 of 52 Appendix C DEQ Risk Calculator Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Prepared By:LES HHM Building 2 Soil Gas (SSV-1) North Carolina Department of Environmental Quality Risk Calculator Harrelson Ford 6500 South Boulevard, Charlotte, NC January 2022 November 2021 EPA RSL Table North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 2 Soil Gas (SSV-1) Note: Risk output will only be calculated for complete exposure pathways. Receptor Pathway Check box if pathway complete Soil Groundwater Use Soil Groundwater Use Construction Worker Soil Soil Surface Water Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Source Soil Source Groundwater Source Soil Source Groundwater Input Form 1A VAPOR INTRUSION PATHWAYS DIRECT CONTACT SOIL AND WATER PATHWAYS Resident Non-Residential Worker Recreator/Trespasser Resident Non-Residential Worker CONTAMINANT MIGRATION PATHWAYS Groundwater Surface Water North Carolina DEQ Risk Calculator Exposure Point ConcentrationsVersion Date: January 2022Basis: November 2021 EPA RSL TableSite ID: Exposure Unit ID: Building 2 Soil Gas (SSV-1)Description of Exposure Point Concentration Selection:Exposure Point Concentration (ug/m3)Notes: CAS Number ChemicalMinimum Concentration (Qualifier)Maximum Concentration (Qualifier)UnitsLocation of Maximum ConcentrationDetection FrequencyRange of Detection LimitsConcentration Used for ScreeningBackground ValueScreening Toxicity Value (Screening Level) (n/c)Potential ARAR/TBC ValuePotential ARAR/TBC SourceCOPC Flag (Y/N)Rationale for Selection or Deletion30.1 67-64-1 Acetoneug/m30.58871-43-2Benzeneug/m32.0675-15-0Carbon Disulfideug/m312.167-66-3Chloroformug/m35.42110-82-7Cyclohexaneug/m32.7775-71-8Dichlorodifluoromethaneug/m31.86123-91-1Dioxane, 1,4-ug/m31.18100-41-4Ethylbenzeneug/m30.75142-82-5Heptane, N-ug/m30.779110-54-3Hexane, N-ug/m34.9967-63-0Isopropanolug/m31.778-93-3Methyl Ethyl Ketone (2-Butanone)ug/m30.84175-09-2Methylene Chlorideug/m32.8191-20-3~Naphthaleneug/m30.596100-42-5Styreneug/m3523127-18-4Tetrachloroethyleneug/m35.18108-88-3Tolueneug/m31.6575-69-4Trichlorofluoromethaneug/m32.8195-63-6Trimethylbenzene, 1,2,4-ug/m30.703108-67-8Trimethylbenzene, 1,3,5-ug/m36.421330-20-7Xylenesug/m3Input Form 2DSoil Gas Exposure Point Concentration TableNote: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculationsNorth Carolina DEQ Risk Calculator Risk for Individual Pathways Output Form 1A Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 2 Soil Gas (SSV-1) Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil NC NC NC Groundwater Use*NC NC NC Soil NC NC NC Groundwater Use*NC NC NC Construction Worker Soil NC NC NC Soil NC NC NC Surface Water*NC NC NC Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 5.6E-06 4.1E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 4.3E-07 3.3E-02 NO Indoor Air NC NC NC Pathway Source Source Soil NC Source Groundwater NC Source Soil NC Source Groundwater NC 3. NM = Not Modeled 4. NC = Pathway not calculated DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser 2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based closure. Surface Water Exceedence of 2B at Receptor? Exceedence of 2B at Receptor? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker CONTAMINANT MIGRATION CALCULATORS Target Receptor Concentrations Exceeded? Groundwater Exceedence of 2L at Receptor? Exceedence of 2L at Receptor? 1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Notes: North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 2 Soil Gas (SSV-1) CAS #Chemical Name: Soil Gas Concentration (ug/m3) Calculated Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Target Indoor Air Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Calculated Non- Carcinogenic Hazard Quotient 67-64-1 Acetone 30.1 0.903 - - 71-43-2 Benzene 0.588 0.01764 3.6E-01 6.3E+00 4.9E-08 5.6E-04 75-15-0 Carbon Disulfide 2.06 0.0618 - 1.5E+02 8.5E-05 67-66-3 Chloroform 12.1 0.363 1.2E-01 2.0E+01 3.0E-06 3.6E-03 110-82-7 Cyclohexane 5.42 0.1626 - 1.3E+03 2.6E-05 75-71-8 Dichlorodifluoromethane 2.77 0.0831 - 2.1E+01 8.0E-04 123-91-1 Dioxane, 1,4- 1.86 0.0558 5.6E-01 6.3E+00 9.9E-08 1.8E-03 100-41-4 Ethylbenzene 1.18 0.0354 1.1E+00 2.1E+02 3.2E-08 3.4E-05 142-82-5 Heptane, N- 0.75 0.0225 - 8.3E+01 5.4E-05 110-54-3 Hexane, N- 0.779 0.02337 - 1.5E+02 3.2E-05 67-63-0 Isopropanol 4.99 0.1497 - 4.2E+01 7.2E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone) 1.7 0.051 - 1.0E+03 9.8E-06 75-09-2 Methylene Chloride 0.841 0.02523 1.0E+02 1.3E+02 2.5E-10 4.0E-05 91-20-3 ~Naphthalene 2.81 0.0843 8.3E-02 6.3E-01 1.0E-06 2.7E-02 100-42-5 Styrene 0.596 0.01788 - 2.1E+02 1.7E-05 127-18-4 Tetrachloroethylene 523 15.69 1.1E+01 8.3E+00 1.5E-06 3.8E-01 108-88-3 Toluene 5.18 0.1554 - 1.0E+03 3.0E-05 75-69-4 Trichlorofluoromethane 1.65 0.0495 - - 95-63-6 Trimethylbenzene, 1,2,4- 2.81 0.0843 - 1.3E+01 1.3E-03 108-67-8 Trimethylbenzene, 1,3,5- 0.703 0.02109 - 1.3E+01 3.4E-04 1330-20-7 Xylenes 6.42 0.1926 - 2.1E+01 1.8E-03 Cumulative: 5.6E-06 4.1E-01 All concentrations are in ug/m3 Output Form 3B Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 2 Soil Gas (SSV-1) CAS # Chemical Name: Soil Gas Concentration (ug/m3) Calculated Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Target Indoor Air Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Calculated Non- Carcinogenic Hazard Quotient 67-64-1 Acetone 30.1 0.301 - - 71-43-2 Benzene 0.588 0.00588 1.6E+00 2.6E+01 3.7E-09 4.5E-05 75-15-0 Carbon Disulfide 2.06 0.0206 - 6.1E+02 6.7E-06 67-66-3 Chloroform 12.1 0.121 5.3E-01 8.6E+01 2.3E-07 2.8E-04 110-82-7 Cyclohexane 5.42 0.0542 - 5.3E+03 2.1E-06 75-71-8 Dichlorodifluoromethane 2.77 0.0277 - 8.8E+01 6.3E-05 123-91-1 Dioxane, 1,4- 1.86 0.0186 2.5E+00 2.6E+01 7.6E-09 1.4E-04 100-41-4 Ethylbenzene 1.18 0.0118 4.9E+00 8.8E+02 2.4E-09 2.7E-06 142-82-5 Heptane, N- 0.75 0.0075 - 3.5E+02 4.3E-06 110-54-3 Hexane, N- 0.779 0.00779 - 6.1E+02 2.5E-06 67-63-0 Isopropanol 4.99 0.0499 - 1.8E+02 5.7E-05 78-93-3 Methyl Ethyl Ketone (2-Butanone) 1.7 0.017 - 4.4E+03 7.8E-07 75-09-2 Methylene Chloride 0.841 0.00841 1.2E+03 5.3E+02 6.9E-12 3.2E-06 91-20-3 ~Naphthalene 2.81 0.0281 3.6E-01 2.6E+00 7.8E-08 2.1E-03 100-42-5 Styrene 0.596 0.00596 - 8.8E+02 1.4E-06 127-18-4 Tetrachloroethylene 523 5.23 4.7E+01 3.5E+01 1.1E-07 3.0E-02 108-88-3 Toluene 5.18 0.0518 - 4.4E+03 2.4E-06 75-69-4 Trichlorofluoromethane 1.65 0.0165 - - 95-63-6 Trimethylbenzene, 1,2,4- 2.81 0.0281 - 5.3E+01 1.1E-04 108-67-8 Trimethylbenzene, 1,3,5- 0.703 0.00703 - 5.3E+01 2.7E-05 1330-20-7 Xylenes 6.42 0.0642 - 8.8E+01 1.5E-04 Cumulative: 4.3E-07 3.3E-02 All concentrations are in ug/m3 Output Form Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Prepared By:LES HHM Building 3 Soil Gas (SSV-2/SSV-DUP, SSV-3, and SSV-4) North Carolina Department of Environmental Quality Risk Calculator Harrelson Ford 6500 South Boulevard, Charlotte, NC January 2022 November 2021 EPA RSL Table North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 3 Soil Gas (SSV-2/SSV-DUP, SSV-3, and SSV-4) Note: Risk output will only be calculated for complete exposure pathways. Receptor Pathway Check box if pathway complete Soil Groundwater Use Soil Groundwater Use Construction Worker Soil Soil Surface Water Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Source Soil Source Groundwater Source Soil Source Groundwater Input Form 1A VAPOR INTRUSION PATHWAYS DIRECT CONTACT SOIL AND WATER PATHWAYS Resident Non-Residential Worker Recreator/Trespasser Resident Non-Residential Worker CONTAMINANT MIGRATION PATHWAYS Groundwater Surface Water North Carolina DEQ Risk Calculator Exposure Point ConcentrationsVersion Date: January 2022Basis: November 2021 EPA RSL TableSite ID: Exposure Unit ID: Building 3 Soil Gas (SSV-2/SSV-DUP, SSV-3, and SSV-4)Description of Exposure Point Concentration Selection:Exposure Point Concentration (ug/m3)Notes: CAS Number ChemicalMinimum Concentration (Qualifier)Maximum Concentration (Qualifier)UnitsLocation of Maximum ConcentrationDetection FrequencyRange of Detection LimitsConcentration Used for ScreeningBackground ValueScreening Toxicity Value (Screening Level) (n/c)Potential ARAR/TBC ValuePotential ARAR/TBC SourceCOPC Flag (Y/N)Rationale for Selection or Deletion42.6 67-64-1 Acetoneug/m30.66871-43-2Benzeneug/m32.2975-15-0Carbon Disulfideug/m36.91110-82-7Cyclohexaneug/m32.7975-71-8Dichlorodifluoromethaneug/m34.04123-91-1Dioxane, 1,4-ug/m32.09100-41-4Ethylbenzeneug/m30.779109-99-9~Tetrahydrofuranug/m30.533142-82-5Heptane, N-ug/m31.1110-54-3Hexane, N-ug/m33.5591-78-6Hexanone, 2-ug/m323.167-63-0Isopropanolug/m35.7178-93-3Methyl Ethyl Ketone (2-Butanone)ug/m31.18108-10-1Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m30.98675-09-2Methylene Chlorideug/m32.7591-20-3~Naphthaleneug/m321115-07-1Propyleneug/m30.741100-42-5Styreneug/m36670127-18-4Tetrachloroethyleneug/m34.02108-88-3Tolueneug/m31.8671-55-6Trichloroethane, 1,1,1-ug/m31.5479-01-6Trichloroethyleneug/m31.4375-69-4Trichlorofluoromethaneug/m34.4295-63-6Trimethylbenzene, 1,2,4-ug/m31.32108-67-8Trimethylbenzene, 1,3,5-ug/m325.31330-20-7Xylenesug/m3Input Form 2DSoil Gas Exposure Point Concentration TableNote: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculationsNorth Carolina DEQ Risk Calculator Risk for Individual Pathways Output Form 1A Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 3 Soil Gas (SSV-2/SSV-DUP, SSV-3, and SSV-4) Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil NC NC NC Groundwater Use*NC NC NC Soil NC NC NC Groundwater Use*NC NC NC Construction Worker Soil NC NC NC Soil NC NC NC Surface Water*NC NC NC Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 2.0E-05 4.9E+00 YES Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 1.5E-06 3.9E-01 NO Indoor Air NC NC NC Pathway Source Source Soil NC Source Groundwater NC Source Soil NC Source Groundwater NC 3. NM = Not Modeled 4. NC = Pathway not calculated DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser 2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based closure. Surface Water Exceedence of 2B at Receptor? Exceedence of 2B at Receptor? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker CONTAMINANT MIGRATION CALCULATORS Target Receptor Concentrations Exceeded? Groundwater Exceedence of 2L at Receptor? Exceedence of 2L at Receptor? 1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Notes: North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 3 Soil Gas (SSV-2/SSV-DUP, SSV-3, and SSV-4) CAS #Chemical Name: Soil Gas Concentration (ug/m3) Calculated Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Target Indoor Air Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Calculated Non- Carcinogenic Hazard Quotient 67-64-1 Acetone 42.6 1.278 - - 71-43-2 Benzene 0.668 0.02004 3.6E-01 6.3E+00 5.6E-08 6.4E-04 75-15-0 Carbon Disulfide 2.29 0.0687 - 1.5E+02 9.4E-05 110-82-7 Cyclohexane 6.91 0.2073 - 1.3E+03 3.3E-05 75-71-8 Dichlorodifluoromethane 2.79 0.0837 - 2.1E+01 8.0E-04 123-91-1 Dioxane, 1,4- 4.04 0.1212 5.6E-01 6.3E+00 2.2E-07 3.9E-03 100-41-4 Ethylbenzene 2.09 0.0627 1.1E+00 2.1E+02 5.6E-08 6.0E-05 109-99-9 ~Tetrahydrofuran 0.779 0.02337 - 4.2E+02 1.1E-05 142-82-5 Heptane, N- 0.533 0.01599 - 8.3E+01 3.8E-05 110-54-3 Hexane, N- 1.1 0.033 - 1.5E+02 4.5E-05 591-78-6 Hexanone, 2- 3.5 0.105 - 6.3E+00 3.4E-03 67-63-0 Isopropanol 23.1 0.693 - 4.2E+01 3.3E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone) 5.71 0.1713 - 1.0E+03 3.3E-05 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone) 1.18 0.0354 - 6.3E+02 1.1E-05 75-09-2 Methylene Chloride 0.986 0.02958 1.0E+02 1.3E+02 2.9E-10 4.7E-05 91-20-3 ~Naphthalene 2.75 0.0825 8.3E-02 6.3E-01 1.0E-06 2.6E-02 115-07-1 Propylene 21 0.63 - 6.3E+02 2.0E-04 100-42-5 Styrene 0.741 0.02223 - 2.1E+02 2.1E-05 127-18-4 Tetrachloroethylene 6670 200.1 1.1E+01 8.3E+00 1.9E-05 4.8E+00 108-88-3 Toluene 4.02 0.1206 - 1.0E+03 2.3E-05 71-55-6 Trichloroethane, 1,1,1- 1.86 0.0558 - 1.0E+03 1.1E-05 79-01-6 Trichloroethylene 1.54 0.0462 4.8E-01 4.2E-01 9.7E-08 2.2E-02 75-69-4 Trichlorofluoromethane 1.43 0.0429 - - 95-63-6 Trimethylbenzene, 1,2,4- 4.42 0.1326 - 1.3E+01 2.1E-03 108-67-8 Trimethylbenzene, 1,3,5- 1.32 0.0396 - 1.3E+01 6.3E-04 1330-20-7 Xylenes 25.3 0.759 - 2.1E+01 7.3E-03 Cumulative: 2.0E-05 4.9E+00 All concentrations are in ug/m3 Output Form 3B Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 3 Soil Gas (SSV-2/SSV-DUP, SSV-3, and SSV-4) CAS # Chemical Name: Soil Gas Concentration (ug/m3) Calculated Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Target Indoor Air Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Calculated Non- Carcinogenic Hazard Quotient 67-64-1 Acetone 42.6 0.426 - - 71-43-2 Benzene 0.668 0.00668 1.6E+00 2.6E+01 4.2E-09 5.1E-05 75-15-0 Carbon Disulfide 2.29 0.0229 - 6.1E+02 7.5E-06 110-82-7 Cyclohexane 6.91 0.0691 - 5.3E+03 2.6E-06 75-71-8 Dichlorodifluoromethane 2.79 0.0279 - 8.8E+01 6.4E-05 123-91-1 Dioxane, 1,4- 4.04 0.0404 2.5E+00 2.6E+01 1.6E-08 3.1E-04 100-41-4 Ethylbenzene 2.09 0.0209 4.9E+00 8.8E+02 4.3E-09 4.8E-06 109-99-9 ~Tetrahydrofuran 0.779 0.00779 - 1.8E+03 8.9E-07 142-82-5 Heptane, N- 0.533 0.00533 - 3.5E+02 3.0E-06 110-54-3 Hexane, N- 1.1 0.011 - 6.1E+02 3.6E-06 591-78-6 Hexanone, 2- 3.5 0.035 - 2.6E+01 2.7E-04 67-63-0 Isopropanol 23.1 0.231 - 1.8E+02 2.6E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone) 5.71 0.0571 - 4.4E+03 2.6E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone) 1.18 0.0118 - 2.6E+03 9.0E-07 75-09-2 Methylene Chloride 0.986 0.00986 1.2E+03 5.3E+02 8.0E-12 3.8E-06 91-20-3 ~Naphthalene 2.75 0.0275 3.6E-01 2.6E+00 7.6E-08 2.1E-03 115-07-1 Propylene 21 0.21 - 2.6E+03 1.6E-05 100-42-5 Styrene 0.741 0.00741 - 8.8E+02 1.7E-06 127-18-4 Tetrachloroethylene 6670 66.7 4.7E+01 3.5E+01 1.4E-06 3.8E-01 108-88-3 Toluene 4.02 0.0402 - 4.4E+03 1.8E-06 71-55-6 Trichloroethane, 1,1,1- 1.86 0.0186 - 4.4E+03 8.5E-07 79-01-6 Trichloroethylene 1.54 0.0154 3.0E+00 1.8E+00 5.1E-09 1.8E-03 75-69-4 Trichlorofluoromethane 1.43 0.0143 - - 95-63-6 Trimethylbenzene, 1,2,4- 4.42 0.0442 - 5.3E+01 1.7E-04 108-67-8 Trimethylbenzene, 1,3,5- 1.32 0.0132 - 5.3E+01 5.0E-05 1330-20-7 Xylenes 25.3 0.253 - 8.8E+01 5.8E-04 Cumulative: 1.5E-06 3.9E-01 All concentrations are in ug/m3 Output Form Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Prepared By:LES HHM Building 4 Soil Gas (SSV-5 and SSV-6 North Carolina Department of Environmental Quality Risk Calculator Harrelson Ford 6500 South Boulevard, Charlotte, NC January 2022 November 2021 EPA RSL Table North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 4 Soil Gas (SSV-5 and SSV-6 Note: Risk output will only be calculated for complete exposure pathways. Receptor Pathway Check box if pathway complete Soil Groundwater Use Soil Groundwater Use Construction Worker Soil Soil Surface Water Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Source Soil Source Groundwater Source Soil Source Groundwater Input Form 1A VAPOR INTRUSION PATHWAYS DIRECT CONTACT SOIL AND WATER PATHWAYS Resident Non-Residential Worker Recreator/Trespasser Resident Non-Residential Worker CONTAMINANT MIGRATION PATHWAYS Groundwater Surface Water North Carolina DEQ Risk Calculator Exposure Point ConcentrationsVersion Date: January 2022Basis: November 2021 EPA RSL TableSite ID: Exposure Unit ID: Building 4 Soil Gas (SSV-5 and SSV-6Description of Exposure Point Concentration Selection:Exposure Point Concentration (ug/m3)Notes: CAS Number ChemicalMinimum Concentration (Qualifier)Maximum Concentration (Qualifier)UnitsLocation of Maximum ConcentrationDetection FrequencyRange of Detection LimitsConcentration Used for ScreeningBackground ValueScreening Toxicity Value (Screening Level) (n/c)Potential ARAR/TBC ValuePotential ARAR/TBC SourceCOPC Flag (Y/N)Rationale for Selection or Deletion398 67-64-1 Acetoneug/m335.971-43-2Benzeneug/m322.1106-99-0Butadiene, 1,3-ug/m325.975-15-0Carbon Disulfideug/m30.42567-66-3Chloroformug/m372110-82-7Cyclohexaneug/m31.67106-46-7Dichlorobenzene, 1,4-ug/m32.6275-71-8Dichlorodifluoromethaneug/m313,500156-59-2Dichloroethylene, cis-1,2-ug/m3132156-60-5Dichloroethylene, trans-1,2-ug/m312.175-00-3Ethyl Chloride (Chloroethane)ug/m361.6100-41-4Ethylbenzeneug/m323.8142-82-5Heptane, N-ug/m350.3110-54-3Hexane, N-ug/m33.93591-78-6Hexanone, 2-ug/m361.267-63-0Isopropanolug/m315.978-93-3Methyl Ethyl Ketone (2-Butanone)ug/m34.48108-10-1Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m32521634-04-4Methyl tert-Butyl Ether (MTBE)ug/m30.93875-09-2Methylene Chlorideug/m3393115-07-1Propyleneug/m30.835100-42-5Styreneug/m3647127-18-4Tetrachloroethyleneug/m3224108-88-3Tolueneug/m326.979-01-6Trichloroethyleneug/m31.3375-69-4Trichlorofluoromethaneug/m32.9195-63-6Trimethylbenzene, 1,2,4-ug/m30.732108-67-8Trimethylbenzene, 1,3,5-ug/m31170075-01-4Vinyl Chlorideug/m33021330-20-7Xylenesug/m3Input Form 2DSoil Gas Exposure Point Concentration TableNote: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculationsNorth Carolina DEQ Risk Calculator Risk for Individual Pathways Output Form 1A Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 4 Soil Gas (SSV-5 and SSV-6 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil NC NC NC Groundwater Use*NC NC NC Soil NC NC NC Groundwater Use*NC NC NC Construction Worker Soil NC NC NC Soil NC NC NC Surface Water*NC NC NC Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 2.1E-03 5.6E+00 YES Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 4.3E-05 4.5E-01 NO Indoor Air NC NC NC Pathway Source Source Soil NC Source Groundwater NC Source Soil NC Source Groundwater NC 3. NM = Not Modeled 4. NC = Pathway not calculated DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser 2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based closure. Surface Water Exceedence of 2B at Receptor? Exceedence of 2B at Receptor? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker CONTAMINANT MIGRATION CALCULATORS Target Receptor Concentrations Exceeded? Groundwater Exceedence of 2L at Receptor? Exceedence of 2L at Receptor? 1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Notes: North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 4 Soil Gas (SSV-5 and SSV-6 CAS #Chemical Name: Soil Gas Concentration (ug/m3) Calculated Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Target Indoor Air Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Calculated Non- Carcinogenic Hazard Quotient 67-64-1 Acetone 398 11.94 - - 71-43-2 Benzene 35.9 1.077 3.6E-01 6.3E+00 3.0E-06 3.4E-02 106-99-0 Butadiene, 1,3- 22.1 0.663 9.4E-02 4.2E-01 7.1E-06 3.2E-01 75-15-0 Carbon Disulfide 25.9 0.777 - 1.5E+02 1.1E-03 67-66-3 Chloroform 0.425 0.01275 1.2E-01 2.0E+01 1.0E-07 1.2E-04 110-82-7 Cyclohexane 72 2.16 - 1.3E+03 3.5E-04 106-46-7 Dichlorobenzene, 1,4- 1.67 0.0501 2.6E-01 1.7E+02 2.0E-07 6.0E-05 75-71-8 Dichlorodifluoromethane 2.62 0.0786 - 2.1E+01 7.5E-04 156-59-2 Dichloroethylene, cis-1,2- 13500 405 - - 156-60-5 Dichloroethylene, trans-1,2- 132 3.96 - 8.3E+00 9.5E-02 75-00-3 Ethyl Chloride (Chloroethane) 12.1 0.363 - 8.3E+02 8.7E-05 100-41-4 Ethylbenzene 61.6 1.848 1.1E+00 2.1E+02 1.6E-06 1.8E-03 142-82-5 Heptane, N- 23.8 0.714 - 8.3E+01 1.7E-03 110-54-3 Hexane, N- 50.3 1.509 - 1.5E+02 2.1E-03 591-78-6 Hexanone, 2- 3.93 0.1179 - 6.3E+00 3.8E-03 67-63-0 Isopropanol 61.2 1.836 - 4.2E+01 8.8E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone) 15.9 0.477 - 1.0E+03 9.1E-05 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone) 4.48 0.1344 - 6.3E+02 4.3E-05 1634-04-4 Methyl tert-Butyl Ether (MTBE) 252 7.56 1.1E+01 6.3E+02 7.0E-07 2.4E-03 75-09-2 Methylene Chloride 0.938 0.02814 1.0E+02 1.3E+02 2.8E-10 4.5E-05 115-07-1 Propylene 393 11.79 - 6.3E+02 3.8E-03 100-42-5 Styrene 0.835 0.02505 - 2.1E+02 2.4E-05 127-18-4 Tetrachloroethylene 647 19.41 1.1E+01 8.3E+00 1.8E-06 4.7E-01 108-88-3 Toluene 224 6.72 - 1.0E+03 1.3E-03 79-01-6 Trichloroethylene 26.9 0.807 4.8E-01 4.2E-01 1.7E-06 3.9E-01 75-69-4 Trichlorofluoromethane 1.33 0.0399 - - 95-63-6 Trimethylbenzene, 1,2,4- 2.91 0.0873 - 1.3E+01 1.4E-03 108-67-8 Trimethylbenzene, 1,3,5- 0.732 0.02196 - 1.3E+01 3.5E-04 75-01-4 Vinyl Chloride 11700 351 1.7E-01 1.7E+01 2.1E-03 4.2E+00 1330-20-7 Xylenes 302 9.06 - 2.1E+01 8.7E-02 Cumulative:2.1E-03 5.6E+00 All concentrations are in ug/m3 Output Form 3B Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Building 4 Soil Gas (SSV-5 and SSV-6 CAS # Chemical Name: Soil Gas Concentration (ug/m3) Calculated Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Target Indoor Air Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Calculated Non- Carcinogenic Hazard Quotient 67-64-1 Acetone 398 3.98 - - 71-43-2 Benzene 35.9 0.359 1.6E+00 2.6E+01 2.3E-07 2.7E-03 106-99-0 Butadiene, 1,3- 22.1 0.221 4.1E-01 1.8E+00 5.4E-07 2.5E-02 75-15-0 Carbon Disulfide 25.9 0.259 - 6.1E+02 8.4E-05 67-66-3 Chloroform 0.425 0.00425 5.3E-01 8.6E+01 8.0E-09 9.9E-06 110-82-7 Cyclohexane 72 0.72 - 5.3E+03 2.7E-05 106-46-7 Dichlorobenzene, 1,4- 1.67 0.0167 1.1E+00 7.0E+02 1.5E-08 4.8E-06 75-71-8 Dichlorodifluoromethane 2.62 0.0262 - 8.8E+01 6.0E-05 156-59-2 Dichloroethylene, cis-1,2- 13500 135 - - 156-60-5 Dichloroethylene, trans-1,2- 132 1.32 - 3.5E+01 7.5E-03 75-00-3 Ethyl Chloride (Chloroethane) 12.1 0.121 - 3.5E+03 6.9E-06 100-41-4 Ethylbenzene 61.6 0.616 4.9E+00 8.8E+02 1.3E-07 1.4E-04 142-82-5 Heptane, N- 23.8 0.238 - 3.5E+02 1.4E-04 110-54-3 Hexane, N- 50.3 0.503 - 6.1E+02 1.6E-04 591-78-6 Hexanone, 2- 3.93 0.0393 - 2.6E+01 3.0E-04 67-63-0 Isopropanol 61.2 0.612 - 1.8E+02 7.0E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone) 15.9 0.159 - 4.4E+03 7.3E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone) 4.48 0.0448 - 2.6E+03 3.4E-06 1634-04-4 Methyl tert-Butyl Ether (MTBE) 252 2.52 4.7E+01 2.6E+03 5.3E-08 1.9E-04 75-09-2 Methylene Chloride 0.938 0.00938 1.2E+03 5.3E+02 7.6E-12 3.6E-06 115-07-1 Propylene 393 3.93 - 2.6E+03 3.0E-04 100-42-5 Styrene 0.835 0.00835 - 8.8E+02 1.9E-06 127-18-4 Tetrachloroethylene 647 6.47 4.7E+01 3.5E+01 1.4E-07 3.7E-02 108-88-3 Toluene 224 2.24 - 4.4E+03 1.0E-04 79-01-6 Trichloroethylene 26.9 0.269 3.0E+00 1.8E+00 9.0E-08 3.1E-02 75-69-4 Trichlorofluoromethane 1.33 0.0133 - - 95-63-6 Trimethylbenzene, 1,2,4- 2.91 0.0291 - 5.3E+01 1.1E-04 108-67-8 Trimethylbenzene, 1,3,5- 0.732 0.00732 - 5.3E+01 2.8E-05 75-01-4 Vinyl Chloride 11700 117 2.8E+00 7.0E+01 4.2E-05 3.3E-01 1330-20-7 Xylenes 302 3.02 - 8.8E+01 6.9E-03 Cumulative: 4.3E-05 4.5E-01 All concentrations are in ug/m3 Output Form Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Prepared By:LES HHM Exterior Soil Gas (SG-16) North Carolina Department of Environmental Quality Risk Calculator Harrelson Ford 6500 South Boulevard, Charlotte, NC January 2022 November 2021 EPA RSL Table North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Exterior Soil Gas (SG-16) Note: Risk output will only be calculated for complete exposure pathways. Receptor Pathway Check box if pathway complete Soil Groundwater Use Soil Groundwater Use Construction Worker Soil Soil Surface Water Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Source Soil Source Groundwater Source Soil Source Groundwater Input Form 1A VAPOR INTRUSION PATHWAYS DIRECT CONTACT SOIL AND WATER PATHWAYS Resident Non-Residential Worker Recreator/Trespasser Resident Non-Residential Worker CONTAMINANT MIGRATION PATHWAYS Groundwater Surface Water North Carolina DEQ Risk Calculator Exposure Point ConcentrationsVersion Date: January 2022Basis: November 2021 EPA RSL TableSite ID: Exposure Unit ID: Exterior Soil Gas (SG-16)Description of Exposure Point Concentration Selection:Exposure Point Concentration (ug/m3)Notes: CAS Number ChemicalMinimum Concentration (Qualifier)Maximum Concentration (Qualifier)UnitsLocation of Maximum ConcentrationDetection FrequencyRange of Detection LimitsConcentration Used for ScreeningBackground ValueScreening Toxicity Value (Screening Level) (n/c)Potential ARAR/TBC ValuePotential ARAR/TBC SourceCOPC Flag (Y/N)Rationale for Selection or Deletion72.5 67-64-1 Acetoneug/m320.9 71-43-2 Benzeneug/m312 75-15-0 Carbon Disulfideug/m31.26 56-23-5 Carbon Tetrachlorideug/m30.977 74-87-3 Chloromethaneug/m321.1 110-82-7 Cyclohexaneug/m33.16 75-71-8 Dichlorodifluoromethaneug/m315.8 100-41-4 Ethylbenzeneug/m31.57 109-99-9 ~Tetrahydrofuranug/m326.1 142-82-5 Heptane, N-ug/m357 110-54-3 Hexane, N-ug/m315.6 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m33.56 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)ug/m32.17 75-09-2 Methylene Chlorideug/m32.91 91-20-3 ~Naphthaleneug/m3152 115-07-1 Propyleneug/m31.58 100-42-5 Styreneug/m32.44 127-18-4 Tetrachloroethyleneug/m3259 108-88-3 Tolueneug/m31.12 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-ug/m32.57 75-69-4 Trichlorofluoromethaneug/m35.67 95-63-6 Trimethylbenzene, 1,2,4-ug/m31.97 108-67-8 Trimethylbenzene, 1,3,5-ug/m370.2 1330-20-7 Xylenesug/m3Input Form 2DSoil Gas Exposure Point Concentration TableNote: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals.If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculationsNorth Carolina DEQ Risk Calculator Risk for Individual Pathways Output Form 1A Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Exterior Soil Gas (SG-16) Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil NC NC NC Groundwater Use* NC NC NC Soil NC NC NC Groundwater Use* NC NC NC Construction Worker Soil NC NC NC Soil NC NC NC Surface Water* NC NC NC Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 3.3E-06 8.4E-02 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 2.5E-07 6.6E-03 NO Indoor Air NC NC NC Pathway Source Source Soil NC Source Groundwater NC Source Soil NC Source Groundwater NC 3. NM = Not Modeled 4. NC = Pathway not calculated DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser 2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based closure. Surface Water Exceedence of 2B at Receptor? Exceedence of 2B at Receptor? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker CONTAMINANT MIGRATION CALCULATORS Target Receptor Concentrations Exceeded? Groundwater Exceedence of 2L at Receptor? Exceedence of 2L at Receptor? 1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Notes: North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Exterior Soil Gas (SG-16) CAS # Chemical Name: Soil Gas Concentration (ug/m3) Calculated Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Target Indoor Air Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Calculated Non- Carcinogenic Hazard Quotient 67-64-1 Acetone 72.5 2.175 - - 71-43-2 Benzene 20.9 0.627 3.6E-01 6.3E+00 1.7E-06 2.0E-02 75-15-0 Carbon Disulfide 12 0.36 - 1.5E+02 4.9E-04 56-23-5 Carbon Tetrachloride 1.26 0.0378 4.7E-01 2.1E+01 8.1E-08 3.6E-04 74-87-3 Chloromethane 0.977 0.02931 - 1.9E+01 3.1E-04 110-82-7 Cyclohexane 21.1 0.633 - 1.3E+03 1.0E-04 75-71-8 Dichlorodifluoromethane 3.16 0.0948 - 2.1E+01 9.1E-04 100-41-4 Ethylbenzene 15.8 0.474 1.1E+00 2.1E+02 4.2E-07 4.5E-04 109-99-9 ~Tetrahydrofuran 1.57 0.0471 - 4.2E+02 2.3E-05 142-82-5 Heptane, N- 26.1 0.783 - 8.3E+01 1.9E-03 110-54-3 Hexane, N- 57 1.71 - 1.5E+02 2.3E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone) 15.6 0.468 - 1.0E+03 9.0E-05 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone) 3.56 0.1068 - 6.3E+02 3.4E-05 75-09-2 Methylene Chloride 2.17 0.0651 1.0E+02 1.3E+02 6.4E-10 1.0E-04 91-20-3 ~Naphthalene 2.91 0.0873 8.3E-02 6.3E-01 1.1E-06 2.8E-02 115-07-1 Propylene 152 4.56 - 6.3E+02 1.5E-03 100-42-5 Styrene 1.58 0.0474 - 2.1E+02 4.5E-05 127-18-4 Tetrachloroethylene 2.44 0.0732 1.1E+01 8.3E+00 6.8E-09 1.8E-03 108-88-3 Toluene 259 7.77 - 1.0E+03 1.5E-03 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2- 1.12 0.0336 - 1.0E+03 6.4E-06 75-69-4 Trichlorofluoromethane 2.57 0.0771 - - 95-63-6 Trimethylbenzene, 1,2,4- 5.67 0.1701 - 1.3E+01 2.7E-03 108-67-8 Trimethylbenzene, 1,3,5- 1.97 0.0591 - 1.3E+01 9.4E-04 1330-20-7 Xylenes 70.2 2.106 - 2.1E+01 2.0E-02 Cumulative: 3.3E-06 8.4E-02 All concentrations are in ug/m3 Output Form 3B Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: Exposure Unit ID: Exterior Soil Gas (SG-16) CAS # Chemical Name: Soil Gas Concentration (ug/m3) Calculated Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Target Indoor Air Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Calculated Non- Carcinogenic Hazard Quotient 67-64-1 Acetone 72.5 0.725 - - 71-43-2 Benzene 20.9 0.209 1.6E+00 2.6E+01 1.3E-07 1.6E-03 75-15-0 Carbon Disulfide 12 0.12 - 6.1E+02 3.9E-05 56-23-5 Carbon Tetrachloride 1.26 0.0126 2.0E+00 8.8E+01 6.2E-09 2.9E-05 74-87-3 Chloromethane 0.977 0.00977 - 7.9E+01 2.5E-05 110-82-7 Cyclohexane 21.1 0.211 - 5.3E+03 8.0E-06 75-71-8 Dichlorodifluoromethane 3.16 0.0316 - 8.8E+01 7.2E-05 100-41-4 Ethylbenzene 15.8 0.158 4.9E+00 8.8E+02 3.2E-08 3.6E-05 109-99-9 ~Tetrahydrofuran 1.57 0.0157 - 1.8E+03 1.8E-06 142-82-5 Heptane, N- 26.1 0.261 - 3.5E+02 1.5E-04 110-54-3 Hexane, N- 57 0.57 - 6.1E+02 1.9E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone) 15.6 0.156 - 4.4E+03 7.1E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone) 3.56 0.0356 - 2.6E+03 2.7E-06 75-09-2 Methylene Chloride 2.17 0.0217 1.2E+03 5.3E+02 1.8E-11 8.3E-06 91-20-3 ~Naphthalene 2.91 0.0291 3.6E-01 2.6E+00 8.1E-08 2.2E-03 115-07-1 Propylene 152 1.52 - 2.6E+03 1.2E-04 100-42-5 Styrene 1.58 0.0158 - 8.8E+02 3.6E-06 127-18-4 Tetrachloroethylene 2.44 0.0244 4.7E+01 3.5E+01 5.2E-10 1.4E-04 108-88-3 Toluene 259 2.59 - 4.4E+03 1.2E-04 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2- 1.12 0.0112 - 4.4E+03 5.1E-07 75-69-4 Trichlorofluoromethane 2.57 0.0257 - - 95-63-6 Trimethylbenzene, 1,2,4- 5.67 0.0567 - 5.3E+01 2.2E-04 108-67-8 Trimethylbenzene, 1,3,5- 1.97 0.0197 - 5.3E+01 7.5E-05 1330-20-7 Xylenes 70.2 0.702 - 8.8E+01 1.6E-03 Cumulative: 2.5E-07 6.6E-03 All concentrations are in ug/m3 Output Form Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator