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HomeMy WebLinkAbout22031 KTown Supplemental VI Assessment Report_20220224i https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/VI Assessment Report.docx Supplemental Vapor Intrusion Assessment Report K-Town Furniture Brownfields Property Oak Avenue and W. A Street Kannapolis, North Carolina Brownfields Project No. 22031-18-013) H&H Job No. LSG-001 Table of Contents 1.0 Introduction and Background ...............................................................................................1 2.0 Brownfields Assessment Activities ........................................................................................3 2.1 Geophysical Survey/Utility Locating ....................................................................................3 2.2 Soil Gas Assessment Methodology .......................................................................................3 2.3 Investigation Derived Waste .................................................................................................5 3.0 Exterior Soil Gas Assessment Results ...................................................................................6 4.0 Conclusions and Recommendations ......................................................................................8 List of Tables Table 1 Summary of Exterior Soil Gas Analytical Results Table 2 Summary of Calculated Cumulative Risks for Exterior Soil Gas List of Figures Figure 1 Site Location Map Figure 2 Site and Previous Sample Location Map Figure 3 Sample Location Map List of Appendices Appendix A Boring Logs Appendix B Field Sampling Forms Appendix C Laboratory Analytical Reports Appendix D DEQ Risk Calculator Forms 1 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/VI Assessment Report.docx Supplemental Vapor Intrusion Assessment Report K-Town Furniture Brownfields Property Oak Avenue and W. A Street Kannapolis, North Carolina Brownfields Project No. 22031-18-013 H&H Job No. LSG-001 1.0 Introduction and Background Hart & Hickman, PC (H&H) has prepared this Brownfields Supplemental Vapor Intrusion Assessment Report on behalf of Right Field Development, LLC (Prospective Developer) to document supplemental vapor intrusion assessment activities conducted at the K-Town Furniture Brownfields property (Brownfields Project No. 22031-18-013) located within the City of Kannapolis’s Baseball and Entertainment Venue in Kannapolis, Cabarrus County, North Carolina (Site). The Site is comprised of five contiguous parcels of land identified as Cabarrus County PIN numbers 56145072260000, 56146012190000, 56146001440000, 56146000050000, and 56135999030000 that total approximately 9.2 acres. Parcel 56145072260000 has been redeveloped by the City of Kannapolis with a minor league baseball stadium. The former buildings on Parcels 56146012190000, 56146001440000, 56146000050000, and 56135999030000 have been razed, and the land has been graded for future redevelopment activities. A Site location map is provided as Figure 1, and a Site Map is included as Figure 2. Right Field Development, LLC plans to acquire a portion of the Site (Parcels 56146001440000 and 56146012190000) for redevelopment of one mixed-use building (referred to as Stadium Lofts, VIDA 3, or Block 4 South) with commercial/retail space at ground level and high-density residential units above and a second mixed-use building (referred to as Block 4 North) with three levels of parking near ground level and mixed-use and high-density residential units above. On January 17, 2020, a Brownfields agreement between the North Carolina Department of Environmental Quality (DEQ) and the City of Kannapolis was recorded for the Site. Terms of the Brownfields agreement indicate that physical redevelopment of the Site should be completed in accordance with a DEQ-approved Environmental Management Plan (EMP). DEQ provided approval for the EMP dated August 8, 2018. In addition to the EMP, terms of the Brownfields 2 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/VI Assessment Report.docx agreement indicate that no enclosed building for residential use can be constructed on the Brownfields property until DEQ provides written notification that the building is protective of the building occupants from risks associated with vapor intrusion. This is typically accomplished through design and installation of a DEQ-approved vapor intrusion mitigation plan (VIMP) or by demonstrating to DEQ through vapor intrusion sampling that vapor barriers or mitigation systems are not warranted. To obtain updated vapor intrusion assessment information for the Site, H&H prepared a Supplemental Vapor Intrusion Assessment Work Plan and conducted additional vapor intrusion assessment activities within the footprints of the proposed mixed-use buildings in February 2022. The updated vapor intrusion assessment information will be utilized to determine if vapor mitigation measures will be necessary or to demonstrate to DEQ that vapor barriers or mitigation systems are not warranted. H&H conducted the assessment activities in general accordance with DEQ Brownfields Program requirements to further evaluate the potential for vapor intrusion to impact the proposed redevelopment project. The methods and results of the assessment activities are detailed in the following sections. 3 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/VI Assessment Report.docx 2.0 Brownfields Assessment Activities On February 3 and 4, 2022, H&H completed exterior soil gas assessment activities at the Site to further evaluate the vapor intrusion potential and determine if vapor mitigation measures are necessary during construction of two mixed-use buildings at the Site. The soil gas sample locations are depicted on Figure 3. 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 July 2021, the DEQ Division of Waste Management (DWM) Vapor Intrusion Guidance (VI Guidance) dated March 2018, and the most recent versions of the U.S. Environmental Protection Agency (EPA) Region IV Quality System and Technical Procedures for Laboratory Services and Applied Science Division (LSASD) guidance. 2.1 Geophysical Survey/Utility Locating Prior to conducting the assessment activities, H&H contacted North Carolina 811, the public utility locator, to mark subsurface utilities on the Site. H&H also contacted with Integrated Scanning Solutions (ISS), a private utility locator, to screen proposed sample locations for subgrade utilities and to confirm the public utility locator markings using electromagnetic and ground-penetrating radar methods. Boring locations were hand cleared using a decontaminated stainless steel hand auger to approximately 5 ft below ground surface (bgs) prior to use of mechanical drilling equipment to further screen the boring locations for the presence of subsurface utilities. 2.2 Soil Gas Assessment Methodology To evaluate the potential for vapor intrusion in proposed enclosed building areas, H&H contracted Innovative Environmental Technologies (IET), a North Carolina-licensed drilling contractor, to advance/install ten (10) temporary soil gas monitoring points (VMP-5 through VMP-14) within the footprints of the proposed buildings in the eastern portion of the Site on February 3, 2022. The soil gas monitoring points were installed using a decontaminated stainless steel hand auger and 4 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/VI Assessment Report.docx track-mounted direct push technology (DPT) rig. The exterior soil gas monitoring locations are depicted on Figure 3 and described below. • Five exterior soil gas samples (VMP-5 through VMP-6 and VMP-12 through VMP-14) were collected within the footprint of the proposed mixed-use building (Block 4 North) in the northeastern portion of the Site. • Five exterior soil gas (VMP-7 through VMP-11) were collected within the footprint of the proposed mixed-use building (Block 4 South) in the eastern portion of the Site. The exterior soil gas monitoring points were installed to depths ranging from approximately 12 to 15 ft bgs. During advancement of each borehole, soil recovered from the DPT sampler or hand auger was described for lithological purposes and was screened for the presence of odors, staining, and for organic vapors utilizing a calibrated photoionization detector (PID). No obvious evidence of soil gas impacts was identified during field screening. Due to the presence of dense saprolite and partially weathered rock, DPT refusal was encountered in borings VMP-8, VMP-9, and VMP- 13 at depths ranging from approximately 11.5 to 12 ft bgs. Boring logs including lithological descriptions and field screening results are provided in Appendix A. The soil gas monitoring points were constructed with a 6-inch long stainless steel screen point fitted with Teflon® tubing that extended to the surface. Once the screen point was set at the desired depth, filter sand was placed around the annular space of the sample point and extended to approximately six inches above the top of the screen. The sampling points were completed by placing hydrated bentonite from the top of the filter sand to the ground surface. A leak check was conducted at each sampling point by placing a shroud over each sampling point and canister, filling the shroud with helium gas, and using a field helium gas detector to verify that the shroud was saturated with helium gas. Then, the sample points were purged using a syringe and a three-way valve to collect purged vapor into a Tedlar® bag. The purged vapor was subsequently analyzed using the helium gas detector to ensure that helium concentrations were less than 10% of the helium concentrations in the shroud. 5 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/VI Assessment Report.docx Following a successful leak check, the soil gas samples were collected using 1-liter Summa® canisters. H&H collected soil gas samples from soil gas monitoring points VMP-5 through VMP- 10 on February 3, 2022, and VMP-11 through VMP-14 on February 4, 2022. The Summa® cannisters were connected to the screen point via Telfon® tubing. The Summa® cannisters were allowed to fill slowly (approximately 100 milliliters per minute) using an airflow regulator. Vacuum readings on the Summa® cannisters were recorded prior to and following the approximate 10-minute sampling period to ensure adequate sample volume was collected. Per laboratory standard operating procedures, a vacuum was maintained within the canisters at the conclusion of the sampling event. During sample collection, H&H collected measurements of ambient temperature and relative humidity during the sample collection period in the general areas of the soil gas samples. In addition, outside weather conditions were noted during the sampling period. Soil gas sampling field forms completed by H&H sampling personnel are provided in Appendix B. Following sample collection, the Summa® canisters were delivered under standard chain-of- custody protocols to Waypoint Analytical for analysis of volatile organic compounds (VOCs) by EPA Method TO-15. For quality control purposes, H&H collected a duplicate exterior soil gas sample (DUP-020322) from VMP-8 for laboratory analysis of VOCs by EPA Method TO-15. 2.3 Investigation Derived Waste Upon completion of the soil gas assessment activities, the temporary exterior soil gas monitoring points were properly abandoned using hydrated bentonite by IET. The ground surface was then patched to approximately match pre-drilling conditions. Soil cuttings generated during the soil gas assessment activities were spread on-Site. 6 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/VI Assessment Report.docx 3.0 Exterior Soil Gas Assessment Results Exterior soil gas analytical results were compared to the DEQ DWM Residential and Non- Residential Sub-Slab and Exterior Soil Gas Screening Levels (SGSLs) dated June 2021. A tabular summary of the exterior soil gas sample analytical results is provided as Table 1. The laboratory analytical reports and chain-of-custody records are provided in Appendix C. As is typically the case, exterior soil gas sample laboratory analytical results indicate that several VOCs were detected at concentrations above the laboratory method detection limits (MDLs) in each sample. A summary of VOC detections above the SGSLs is provided below. • Benzene (up to 34.8 µg/m3) was detected in soil gas samples VMP-8 and its duplicate DUP-020322 and VMP-9, VMP-10, VMP-11, and VMP-12 at concentrations exceeding the Residential SGSL of 12 µg/m3 but below the Non-Residential SGSL of 160 µg/m3. • 1,3-Butadiene (up to 42.0 µg/m3) was detected in soil gas samples VMP-5, VMP-6, VMP- 7, VMP-8 and its duplicate DUP-020322, VMP-9, VMP-10, VMP-11, and VMP-12 at concentrations above the Residential SGSL of 3.1 µg/m3. The 1,3-butadiene concentration in VMP-12 also slightly exceeds the Non-Residential SGSL of 41 µg/m3. • Chloroform (up to 175 µg/m3) was detected in soil gas samples VMP-6, VMP-7, VMP-8 and its duplicate DUP-020322, VMP-9, VMP-10, VMP-11, VMP-12, VMP-13, and VMP- 14 at concentrations exceeding the Residential SGSL of 4.1 µg/m3. The chloroform concentrations detected in VMP-10, VMP-11, VMP-13, and VMP-14 also exceed the Non- Residential SGSL of 53 µg/l. • Ethylbenzene (up to 47.6 µg/m3) was detected in soil gas samples VMP-9 and VMP-11 above the Residential SGSL of 37 µg/m3 but below the Non-Residential SGSL of 490 µg/m3. • Concentrations of naphthalene (up to 16.3 µg/m3) were detected above the Residential SGSL of 2.8 µg/m3 in soil gas samples VMP-5, VMP-6, VMP-7, VMP-8 and its duplicate DUP-020322, VMP-9, VMP-11, VMP-12, VMP-13, and VMP-14 but below the Non- Residential SGSL of 36 µg/m3. 7 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/VI Assessment Report.docx No other compounds were detected at concentrations above the Residential or Non-Residential SGSLs in exterior soil gas samples. Risk Calculations The DEQ DWM SGSLs are conservative and based upon a lifetime incremental cancer risk (LICR) of 1 x 10-6 for potential carcinogenic effects and a Hazard Quotient (HQ) of 0.2 for potential non- carcinogenic effects. The DEQ and EPA acceptable risk level for potential carcinogenic risks is a cumulative LICR of 1 x 10-4 or less, and the acceptable risk level for non-carcinogenic risks is a hazard index (HI) of 1.0 or less. The HI is the sum of HQs for each detected compound. H&H used the DEQ risk calculator (June 2021) assuming both residential and non-residential land use scenarios to further evaluate potential cumulative risks for the soil gas to indoor air vapor intrusion pathway. H&H calculated the cumulative risks associated with compound concentrations detected in each individual soil gas sample. For VMP-8, the cumulative risk was calculated using the highest concentration of each detected compound in the parent and duplicate samples. A tabular summary of the calculated cumulative risks for the exterior soil gas samples is provided as Table 2. Risk calculator results for a residential scenario indicate cumulative LICRs ranging from 5.9 x 10-6 to 5.5 x 10-5 and HI levels ranging from 0.14 to 0.78. Under a non-residential land use scenario, risk calculator results indicate LICRs ranging from 4.5 x 10-7 to 3.8 x 10-6 and HI values ranging from 0.011 to 0.062. The calculated health risks are below acceptable levels for both residential and non-residential land use scenarios; therefore, vapor intrusion does not appear to be a significant concern at the Site. Copies of the completed risk calculators are provided in Appendix D. 8 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/VI Assessment Report.docx 4.0 Conclusions and Recommendations H&H has completed supplemental vapor intrusion assessment activities at the K-Town Furniture Brownfields property (Brownfields Project No. 22031-18-013) located within the City of Kannapolis’s Baseball and Entertainment Venue in Kannapolis, Cabarrus County, North Carolina. The assessment activities were conducted in accordance with the Supplemental Vapor Intrusion Assessment Work Plan dated February 9, 2022. The supplemental vapor intrusion assessment activities included the collection of exterior soil gas samples for laboratory analysis to further evaluate the vapor intrusion potential and determine if vapor mitigation measures are necessary during construction of two mixed-use buildings at the Site. A brief summary of the supplemental vapor intrusion assessment activities is provided below. • Results of exterior soil gas assessment activities conducted within the footprints of the proposed mixed-use buildings identified benzene, 1,3-butadiene, chloroform, ethylbenzene, and naphthalene in one or more samples at concentrations that exceed the DEQ DWM Residential SGSLs. The concentrations of 1,3-butadiene in sample VMP-12 and chloroform in samples VMP-10, VMP-11, VMP-13, and VMP-14 also exceeds the Non-Residential SGSLs for these compounds. However, exterior soil gas to indoor air risk calculator results indicate that cumulative health risks do not exceed DEQ and EPA acceptable levels for residential or non-residential land use scenarios. Therefore, vapor intrusion does not appear to be a significant concern at the Site. Based upon the results of the supplemental vapor intrusion assessment activities completed at the Site, no vapor intrusion mitigation appears to be warranted based on the results of cumulative risk calculations using exterior soil gas data. H&H recommends that impacted media be managed in accordance with the DEQ-approved EMP. Table 1Summary of Exterior Soil Gas Analytical Results K-Town Furniture SiteKannapolis, North Carolina H&H Job No. LSG-001 Sample ID VMP-5 VMP-6 VMP-7 VMP-8 DUP-020322 VMP-9 VMP-10 VMP-11 VMP-12 VMP-13 VMP-14 Sample Depth (ft bgs)14.5-15 14.5-15 14.5-15 11.5-12 14.5-15 14.5-15 14.5-15 14.5-15 14.5-15 Date 2/3/2022 2/3/2022 2/3/2022 2/3/2022 2/3/2022 2/4/2022 2/4/2022 2/4/2022 2/4/2022 Location Units VOCs (TO-15) Acetone 50.4 85.8 65.8 83.9 80.1 106 75.4 61.6 70.4 25.4 33.2 220,000 2,700,000 Benzene 3.93 7.32 3.28 20.6 19.6 34.8 19.9 22.6 15.7 1.37 J 5.34 12 160 Bromodichloromethane <0.150 <0.150 <0.150 <0.150 <0.150 <0.150 <0.150 <0.150 <0.150 2.28 J 3.79 2.5 33 Bromomethane <0.115 <0.115 <0.115 <0.115 <0.115 1.63 J 3.82 <0.115 <0.115 <0.115 <0.115 35 440 1,3-Butadiene 9.19 21.8 9.16 34.5 31.8 39.1 21.0 7.35 42.0 1.78 2.72 3.1 41 Carbon Disulfide 1.46 JB <0.0608 2.98 JB <0.0608 7.63 B 7.67 B <0.0608 17.0 19.2 1.74 JB 3.73 JB 4,900 61,000 Carbon Tetrachloride <0.155 <0.155 1.04 J 0.616 J <0.155 0.755 J <0.155 <0.155 <0.155 <0.155 <0.155 16 200 Chloroform 3.65 43.9 8.38 22.7 21.3 5.23 96.7 175 8.96 62.3 64.6 4.1 53 Chloromethane <0.0673 <0.0673 <0.0673 <0.0673 <0.0673 <0.0673 <0.0673 <0.0673 <0.0673 0.357 J <0.0673 630 7,900 Cyclohexane 10.8 15.6 9.22 9.98 8.64 15.5 25.1 13.2 15.8 8.24 8.43 42,000 61,000 Dichlorodifluoromethane 3.85 <0.134 6.56 7.18 7.21 20.8 8.90 4.91 <0.134 3.61 4.12 700 8,800 Ethylbenzene 4.25 6.04 4.12 29.3 26.3 42.0 29.8 47.6 14.9 6.19 25.9 37 490 4-Ethyltoluene 1.64 J 3.07 1.53 J 8.06 7.69 6.38 6.52 13.4 3.85 2.06 J 7.16 NE NE Heptane 11.6 36.7 10.8 70.8 65.4 178 110 130 159 8.38 40.1 2,800 35,000 n-Hexane 3.09 13.9 4.56 22.9 22.0 27.4 25.6 19.2 40.4 2.09 2.44 4,900 61,000 2-Hexanone 5.22 7.61 4.39 13.8 13.3 <0.285 <0.285 <0.285 <0.285 <0.285 <0.285 210 2,600 Isopropyl Alchohol <0.139 <0.139 <0.139 6.17 <0.139 <0.139 <0.139 <0.139 <0.139 <0.139 <0.139 1,400 18,000 4-Methyl-2-Pentanone 5.56 5.55 4.03 11.0 10.9 5.90 7.34 3.36 2.28 0.643 J 1.38 J 21,000 260,000 Methylene Chloride 1.07 J <0.489 <0.489 6.90 9.74 2.82 <0.489 <0.489 <0.489 1.80 1.26 J 3,400 53,000 Methyl Ethyl Ketone (2-Butanone)9.71 17.5 14.1 15.3 14.7 18.2 17.0 7.57 16.0 6.42 19.8 35,000 440,000 Naphthalene 4.31 4.39 16.3 5.66 5.44 4.45 <0.183 4.60 4.36 4.48 4.82 2.8 36 Propene 38.7 178 86.0 92.6 86.7 124 229 42.7 755 12.7 13.9 21,000 260,000 Styrene 4.64 4.95 4.61 4.70 4.66 4.70 4.62 4.78 <0.124 4.46 4.98 7,000 88,000 Tetrachloroethylene (PCE)12.1 20.2 36.2 6.02 5.56 6.01 10.6 15.5 10.9 39.7 71.9 280 3,500 Tetrahydrofuran <0.107 <0.107 0.622 J 1.37 J 2.05 1.68 1.76 1.20 J <0.107 <0.107 1.61 14,000 180,000 Toluene 31.7 55.6 30.9 184 173 367 274 209 153 32.7 180 35,000 440,000 1,1,2-Trichloro-1,2,2-trifluoroethane <0.561 <0.561 <0.561 1.46 J 0.958 J 2.87 J 2.64 J 5.43 3.07 J 3.17 J 2.15 J 35,000 440,000 1,1,1-Trichloroethane 1.29 J 2.61 J 14.0 1.04 J 0.949 J <0.144 12.4 4.26 <0.144 1.60 J 2.47 J 35,000 440,000 Trichlorofluoromethane (Freon 11)279 2,250 1,970 148 138 289 367 768 436 479 195 NE NE 1,2,4-Trimethylbenzene 6.85 11.2 5.29 27.6 24.9 18.2 23.0 38.8 11.3 6.51 19.2 420 5,300 1,3,5-Trimethylbenzene 2.11 J 2.99 1.38 J 8.24 7.44 6.14 14.6 12.2 3.55 1.64 J 6.01 420 5,300 m&p-Xylene 14.0 18.4 13.4 96.7 89.0 133 96.1 160 47.6 20.1 86.1 700 8,800 o-Xylene 4.83 6.66 4.46 33.6 30.8 44.5 32.7 52.6 15.4 6.38 28.1 700 8,800 Notes 1) North Carolina Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) (June 2021) 2) North Carolina DEQ DWM Non-Residential Vapor Intrusion Screening Levels (June 2021) Bold indicates concentration exceeds Residential Sub-Slab and Soil-Gas Vapor Intrusion Screening Level (June 2021) Underline indicates concentration exceeds Non-Residential Soil-Gas Screening Level (June 2021) Soil gas concentrations reported in micrograms per cubic meter (µg/m3). Laboratory analytical method is shown in parentheses. Compound concentrations are reported to the laboratory method detection limit. Only compounds detected in at least one sample are shown in the table above. VOCs - volatile organic compounds; NE = not established; ft bgs = feet below ground surface J = detected concentration is above the laboratory method detection limit, but below the laboratory reporting limit, resulting in a laboratory estimated concentration. B = analyte detected in blank µg/m3 11-11.5 2/3/2022 Residential SGSLs (1) Non-Residential SGSLs (2)Block 4 North Block 4 South Block 4 North https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/Tables/Soil Gas Data Table2/22/2022 Table 1 (Page 1 of 1)Hart & Hickman, PC Table 2 Summary of Calculated Cumulative Risks for Exterior Soil Gas K-Town Furniture Site Kannapolis, North Carolina H&H Job No. LSG-001 Sample ID Sample Date Sample Location Cancer Risk Hazard Index Risk exceeded?Cancer Risk Hazard Index Risk exceeded? VMP-5 2/3/2022 Block 4 North 4.5E-07 0.017 No 5.9E-06 0.21 No VMP-6 2/3/2022 Block 4 North 1.5E-06 0.034 No 2.0E-05 0.42 No VMP-12 2/4/2022 Block 4 North 1.4E-06 0.058 No 1.9E-05 0.73 No VMP-13 2/4/2022 Block 4 North 1.4E-06 0.011 No 1.9E-05 0.14 No VMP-14 2/4/2022 Block 4 North 1.6E-06 0.019 No 2.1E-05 0.24 No VMP-7 2/3/2022 Block 4 South 8.8E-07 0.027 No 1.1E-05 0.34 No VMP-8/DUP-020322 2/3/2022 Block 4 South 1.6E-06 0.055 No 2.1E-05 0.69 No VMP-9 2/3/2022 Block 4 South 1.5E-06 0.062 No 2.0E-05 0.78 No VMP-10 2/3/2022 Block 4 South 2.5E-06 0.038 No 3.3E-05 0.48 No VMP-11 2/4/2022 Block 4 South 3.8E-06 0.030 No 5.5E-05 0.38 No Note Risk values for Feburary 2022 data generated by North Carolina Department of Environmental Quality (DEQ) Risk Calculator for Non-Resident Worker and Resident versions June 2021 Non-Residential Worker Soil Gas to Indoor Air Resident Soil Gas to Indoor Air File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Lansing Melbourne Group (LSG)/LSG-001 Kannapolis NC/2022 VI Assessment/Tables/Soil Gas Data Table Date:2/22/2022 Table 2 (Page 1 of 1) Hart & Hickman, PC 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 August, 2021. SITE LOCATION MAP K-TOWN FURNITUREBROWNFIELDS PROPERTY KANNAPOLIS, NORTH CAROLINA DATE: 2-9-22 JOB NO: LSG-001 REVISION NO: 0 FIGURE NO: 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 SITE Path: \\HHFS01\Redirectedfolders\sperry\My Documents\ArcGIS\PROJECTS\LSG-001\Figure-1.mxdN U.S.G.S. QUADRANGLE MAP CHINA GROVE, CONCORD, ENOCHVILLE AND KANNAPOLIS, NORTH CAROLINA 2019 QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC) SB-29 SB-32 SB-28 SB-31 SB-27 SB-30 TMW-5 TMW-7 SB-4/ TMW-2 SB-8/ TMW-4 SB-1/ TMW-1 SB-6/ TMW-3 TMW-6 B-4 SB-19 SB-20 SB-23 SB-24 SB-25SB-26 SB-3SB-5 SB-7 SB-9 SB-10 B-1 B-2 SB-11 B-5B-3 SB-2 SB-21 SB-22 SB-12 BASE 20181008 SB-21 SB-22 VMP-1 VMP-2 VMP-3 VMP-4 SB-15 SB-13 SB-17 SB-16 SB-14 SB-18 SB-18A SB-18R SB-13R SB-14R SB-15R SB-16R SB-17R FORMER GAS STATION (400 W. A STREET) FORMER AUTO REPAIR SHOPS (DEMOLISHED) (136-138 OAK AVENUE) FORMER WATER VAULT FORMER STAR CLEANERS (DEMOLISHED) (108 WEST AVENUE) FORMER PURITAN/ BOB'S LAUNDRY & DRY CLEANERS (DEMOLISHED) (311 WEST A STREET) W. A S T R E E T W. B S T R E E T OAK AVENUEWELLNESS WAY CHES T N U T A V E N U E LA U R E A T E W A Y BURIED TIMBER PILINGS FORMER WRENN'S CLEANERS (DEMOLISHED) (136 WEST AVENUE) REVISION NO. 0 JOB NO. LSG-001 DATE: 2-9-22 FIGURE NO. 2 K-TOWN FURNITURE BROWNFIELDS PROPERTY KANNAPOLIS, NORTH CAROLINA SITE AND PREVIOUS SAMPLE LOCATION MAP LEGEND BROWNFIELDS SITE PROPERTY BOUNDARY PARCEL BOUNDARY FORMER BUILDING OUTLINE TEMPORARY MONITORING WELL LOCATION (JANUARY 2018) TEMPORARY MONITORING WELL/ SOIL BORING LOCATION (JANUARY 2018) SOIL BORING LOCATION (JANUARY-MARCH 2018) SOIL BORING LOCATION (AUGUST 2018) SOIL VAPOR SAMPLE LOCATION (AUGUST 2018) APPROXIMATE AREA SUBJECT TO PREVIOUS BROWNFIELDS AGREEMENT FOR NC RESEARCH CAMPUS (INCLUDING WATER VAULT) 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology NOTES: 1.PARCEL BOUNDARY DATA OBTAINED FROM CABARRUS COUNTY GIS, 2022. AERIAL IMAGERY OBTAINED FROM GOOGLE EARTH PRO, 2021. 2.PREVIOUS SAMPLE LOCATIONS FROM H&H FIGURE NOS. 5 AND 6.S:\AAA-Master Projects\Lansing Melbourne Group (LSG)\LSG-001 Kannapolis NC\Figures\Site Map.dwg, FIG 2 Site and Sample Location, 2/9/2022 2:38:06 PM, sperry VMP-1 VMP-2 VMP-3 VMP-4 FORMER GAS STATION (400 W. A STREET) FORMER AUTO REPAIR SHOPS (DEMOLISHED) (136-138 OAK AVENUE) FORMER WATER VAULT FORMER STAR CLEANERS (DEMOLISHED) (108 WEST AVENUE) FORMER PURITAN/ BOB'S LAUNDRY & DRY CLEANERS (DEMOLISHED) (311 WEST A STREET) W. A S T R E E T W. B S T R E E T OAK AVENUEWELLNESS WAY CHES T N U T A V E N U E LA U R E A T E W A Y BURIED TIMBER PILINGS FORMER WRENN'S CLEANERS (DEMOLISHED) (136 WEST AVENUE) REVISION NO. 0 JOB NO. LSG-001 DATE: 2-18-22 FIGURE NO. 3 K-TOWN FURNITURE BROWNFIELDS PROPERTY KANNAPOLIS, NORTH CAROLINA SAMPLE LOCATION MAP LEGEND BROWNFIELDS SITE PROPERTY BOUNDARY PARCEL BOUNDARY FORMER BUILDING OUTLINE SOIL VAPOR SAMPLE LOCATION (AUGUST 2018) SOIL VAPOR SAMPLE LOCATION (FEBRUARY 2022) APPROXIMATE AREA SUBJECT TO PREVIOUS BROWNFIELDS AGREEMENT FOR NC RESEARCH CAMPUS (INCLUDING WATER VAULT) 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology NOTES: 1.PARCEL BOUNDARY DATA OBTAINED FROM CABARRUS COUNTY GIS, 2022. 2.PREVIOUS SAMPLE LOCATIONS FROM H&H FIGURE NO. 5. VMP-5 VMP-14 VMP-13 VMP-12 VMP-11 VMP-9 VMP-8 VMP-7 VMP-10 VMP-6 S:\AAA-Master Projects\Lansing Melbourne Group (LSG)\LSG-001 Kannapolis NC\Figures\Site Map.dwg, FIG 3 (2), 2/21/2022 7:17:22 AM, shaynes Appendix A Boring Logs NOTES: Hole precleared to 5.0' using hand auger. generated using GroundLogs.online Client: Project: Address: Lansing Melbourne Group LSG-001 Corner of West Ave. and LaureateWy., Kannapolis, NC WELL LOG Well No. Page: VMP-5 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/3/22 2/3/22 IET Direct Push AMS PowerProbe 9520 TR White Thomas Vaughan Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Top of Casing Elev. (ft): Location (X,Y): 15.0 3.25 Well Depth (ft): Well Diameter (in): Screen Slot (in): Riser Material: Screen Material: Seal Material(s): Filter Pack: 15.0 0.3 Other Stainless Steel Wire Wrap Bent. Pellets Sand Pack DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 (0') SILT (ML); some clay, medium stiff, moist, Orange-Brown (3') As Above: Gravel (6') Sandy SILT (ML); soft, moist, light brown (13.5') Silty SAND (SM); loose, moist, white and black, saprolite (15') Boring terminated 4.0 3.3 0.9 0.8 1.2 0.4 1.1 0.6 0.4 0 5 10 15 20 NOTES: Hole precleared using hand auger. generated using GroundLogs.online Client: Project: Address: Lansing Melbourne Group LSG-001 Corner of West Ave. and LaureateWy., Kannapolis, NC WELL LOG Well No. Page: VMP-6 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/3/22 2/3/22 IET Direct Push AMS PowerProbe 9520 TR White Thomas Vaughan Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Top of Casing Elev. (ft): Location (X,Y): 15.0 3.25 Well Depth (ft): Well Diameter (in): Screen Slot (in): Riser Material: Screen Material: Seal Material(s): Filter Pack: 15.0 0.3 Other Stainless Steel Wire Wrap Bent. Pellets Sand Pack DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 (0') SILT (ML); medium stiff, moist, orange-brown (7.5') Sandy SILT (ML); soft, moist, reddish-orange (14') Silty SAND (SM); loose, moist, yellowish-gray and white, saprolite (15') Boring terminated 7.7 4.0 0.6 0.5 0.4 0.6 1.2 0.8 0.5 0 5 10 15 20 NOTES: Hole precleared using hand auger. generated using GroundLogs.online Client: Project: Address: Lansing Melbourne Group LSG-001 Corner of West Ave. and LaureateWy., Kannapolis, NC WELL LOG Well No. Page: VMP-7 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/3/22 2/3/22 IET Direct Push AMS PowerProbe 9520 TR White Thomas Vaughan Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Top of Casing Elev. (ft): Location (X,Y): 15.0 3.25 Well Depth (ft): Well Diameter (in): Screen Slot (in): Riser Material: Screen Material: Seal Material(s): Filter Pack: 15.0 0.3 Other Stainless Steel Wire Wrap Bent. Pellets Sand Pack DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 (0') SILT (ML); medium stiff, moist, orange-brown (5.5') Silty SAND (SM); medium dense, moist, reddish-orange (12.5') (13') Silty SAND (SM); loose, moist, yellowish-gray and white, saprolite (15') Boring terminated 3.0 1.9 2.6 0.9 0.6 1.0 1.2 1.1 0.7 0 5 10 15 20 NOTES: Hole precleared using hand auger. generated using GroundLogs.online Client: Project: Address: Lansing Melbourne Group LSG-001 Corner of West Ave. and LaureateWy., Kannapolis, NC WELL LOG Well No. Page: VMP-8 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/3/22 2/3/22 IET Direct Push AMS PowerProbe 9520 TR White Thomas Vaughan Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Top of Casing Elev. (ft): Location (X,Y): 11.5 3.25 Well Depth (ft): Well Diameter (in): Screen Slot (in): Riser Material: Screen Material: Seal Material(s): Filter Pack: 11.5 0.3 Other Stainless Steel Wire Wrap Bent. Pellets Sand Pack DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 (0') (0') SILT (ML); medium stiff, moist, reddish-orange (4') Silty SAND (SM); medium dense, moist, yellowish-gray (7.5') Poorly graded SAND (SP); loose, moist, yellowish-gray and white and black, saprolite and PWR (11') As Above: As Above: Dense (11.5') Boring terminated, DPT Refusal 8.2 4.5 2.8 3.5 1.9 2.2 2.0 4.0 0 5 10 15 NOTES: Hole precleared using hand auger. generated using GroundLogs.online Client: Project: Address: Lansing Melbourne Group LSG-001 Corner of West Ave. and LaureateWy., Kannapolis, NC WELL LOG Well No. Page: VMP-9 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/3/22 2/3/22 IET Direct Push AMS PowerProbe 9520 TR White Thomas Vaughan Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Top of Casing Elev. (ft): Location (X,Y): 12.0 3.25 Well Depth (ft): Well Diameter (in): Screen Slot (in): Riser Material: Screen Material: Seal Material(s): Filter Pack: 12.0 0.3 Other Stainless Steel Wire Wrap Bent. Pellets Sand Pack DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 (0') (0') SILT (ML); medium stiff, moist, reddish-orange (3.5') Sandy lean CLAY (CL); medium plasticity, soft, moist, yellowish-gray (8') Silty SAND (SM); loose, moist, yellowish-gray and black and white (11.5') As Above: dense (12') Boring terminated 4.4 2.6 2.9 1.7 0.6 0.9 1.4 1.6 0 5 10 15 NOTES: Hole precleared using hand auger. generated using GroundLogs.online Client: Project: Address: Lansing Melbourne Group LSG-001 Corner of West Ave. and LaureateWy., Kannapolis, NC WELL LOG Well No. Page: VMP-10 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/3/22 2/3/22 IET Direct Push AMS PowerProbe 9520 TR White Thomas Vaughan Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Top of Casing Elev. (ft): Location (X,Y): 15.0 3.25 Well Depth (ft): Well Diameter (in): Screen Slot (in): Riser Material: Screen Material: Seal Material(s): Filter Pack: 15.0 0.3 Other Stainless Steel Wire Wrap Bent. Pellets Sand Pack DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 (0') (0') SILT (ML); medium stiff, moist, reddish-orange (5.5') Sandy SILT (ML); soft, moist, yellowish-gray (11') Silty SAND (SM); loose, moist, yellowish-gray with black and white, saprolite (15') Boring terminated 4.3 1.1 2.4 1.6 3.1 1.0 0.4 1.2 0.8 0 5 10 15 20 NOTES: Hole precleared using hand auger. generated using GroundLogs.online Client: Project: Address: Lansing Melbourne Group LSG-001 Corner of West Ave. and LaureateWy., Kannapolis, NC WELL LOG Well No. Page: VMP-11 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/3/22 2/3/22 IET Direct Push AMS PowerProbe 9520 TR White Thomas Vaughan Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Top of Casing Elev. (ft): Location (X,Y): 15.0 3.25 Well Depth (ft): Well Diameter (in): Screen Slot (in): Riser Material: Screen Material: Seal Material(s): Filter Pack: 15.0 0.3 Other Stainless Steel Wire Wrap Bent. Pellets Sand Pack DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 (0') SILT (ML); soft, moist, reddish-orange (6.5') Sandy SILT (ML); soft, moist, yellowish-gray (12') Silty SAND (SM); medium dense, moist, yellowish-gray, saprolite and PWR (15') Boring terminated 2.9 3.6 1.5 2.1 0.8 1.2 1.7 1.4 0.9 0 5 10 15 20 NOTES: Hole precleared using hand auger. generated using GroundLogs.online Client: Project: Address: Lansing Melbourne Group LSG-001 Corner of West Ave. and LaureateWy., Kannapolis, NC WELL LOG Well No. Page: VMP-12 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/3/22 2/3/22 IET Direct Push AMS PowerProbe 9520 TR White Thomas Vaughan Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Top of Casing Elev. (ft): Location (X,Y): 15.0 3.25 Well Depth (ft): Well Diameter (in): Screen Slot (in): Riser Material: Screen Material: Seal Material(s): Filter Pack: 15.0 0.3 Other Stainless Steel Wire Wrap Bent. Pellets Sand Pack DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 (0') SILT (ML); medium stiff, moist, reddish-orange (1.5') As Above: w gravel (4.5') Sandy lean CLAY (CL); medium plasticity, soft, moist, yellowish-brown (11') Silty SAND (SM); loose, moist, yellowish-gray, saprolite and PWR (15') Boring terminated 7.7 1.4 4.9 2.6 0.9 0.4 0.4 1.0 0.5 0 5 10 15 20 NOTES: Hole precleared using hand auger. generated using GroundLogs.online Client: Project: Address: Lansing Melbourne Group LSG-001 Corner of West Ave. and LaureateWy., Kannapolis, NC WELL LOG Well No. Page: VMP-13 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/3/22 2/3/22 IET Direct Push AMS PowerProbe 9520 TR White Thomas Vaughan Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Top of Casing Elev. (ft): Location (X,Y): 12.0 3.25 Well Depth (ft): Well Diameter (in): Screen Slot (in): Riser Material: Screen Material: Seal Material(s): Filter Pack: 12.0 0.3 Other Stainless Steel Wire Wrap Bent. Pellets Sand Pack DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 (0') SILT (ML); soft, moist, reddish-orange (1') As Above: gravel (4') Sandy lean CLAY (CL); medium plasticity, soft, moist, yellowish-brown (7.5') Silty SAND (SM); medium dense, moist, yellowish-gray, saprolite and PWR (12') Boring terminated, DPT Refusal 1.5 0.6 0.7 1.8 1.2 0.9 0.6 0.8 0 5 10 15 NOTES: Hole precleared using hand auger. generated using GroundLogs.online Client: Project: Address: Lansing Melbourne Group LSG-001 Corner of West Ave. and LaureateWy., Kannapolis, NC WELL LOG Well No. Page: VMP-14 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 2/3/22 2/3/22 IET Direct Push AMS PowerProbe 9520 TR White Thomas Vaughan Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Top of Casing Elev. (ft): Location (X,Y): 15.0 3.25 Well Depth (ft): Well Diameter (in): Screen Slot (in): Riser Material: Screen Material: Seal Material(s): Filter Pack: 15.0 0.3 Other Stainless Steel Wire Wrap Bent. Pellets Sand Pack DEPTH (ft)LITHOLOGYWATER LEVELWELLCOMPLETIONCOLLECT Sample TypeTimeBlow CountsRecovery (ft)SOIL/ROCK VISUAL DESCRIPTION MEASURE PID (ppm)Lab SampleDEPTH (ft)0 5 10 15 20 (0') Lean CLAY (CL); medium plasticity, soft, moist, reddish-orange (5') Sandy SILT (ML); soft, moist, yellowish-gray (10') Silty SAND (SM); medium dense, moist, yellowish-gray, saprolite and PWR (15') Boring terminated 3.6 4.1 1.2 2.7 1.5 1.1 2.3 1.1 0.5 0 5 10 15 20 Appendix B Field Sampling Forms Sub-Slab / Soil Gas Vapor QA/QC Field FormProject No.:____________________Depth of ScreenDate & TimeAmbient Temp.Purge Method9ROXPH3XUJHGHelium Conc.ShroudHelium Conc.PurgeLeak Test PassedYes / No SS, SGperm., temp.concrete, wood, asphalt, grass, soil, gravel etc.thicknessinches(if appl.)ft bgsmm/dd/yy 24-hour clockoFsyringe, peristaltic, etc.Liters VHHQRWHVIRUFDOF %% or ppm(indicate units below)Yes / No(see note)S:C:R:S:C:R:S:C:R:S:C:R:S= sample; C/R = canister/regulator; SS = sub-slab; SG = soil gas; perm = permanent; temp = temporary9ROXPH3XUJHG [SXUJHYROXPH  / D/ OHQJWKRIWXELQJSLSH IW D IRUGLDPHWHU /IW  IRUGLDPHWHU /IW Helium Leak TestCanister / RegulatorShut-in Test PassedGround SurfaceID NumbersSample / Canister / RegulatorTypeVapor Monitoring Point ConstructionGeneral Field Sketch of Sample LocationsSampler(s):___________________________________________________________Weather:___________________________________________________________Notes:___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ Note: Leak Test Requirements Per NC DEQ DWM Vapor Intrusion Guidance, leak test passes if helium concentration in purge air is less than 10% of helium concentration in shroud. S:\BBB Master Templates\Forms - Soil Gas\Sub-slab & Soil Gas QA_QC Field FormSub-Slab / Soil Gas Sampling Vapor QA/QC Field FormHart & Hickman, PCLSG-0012/3/2255.056.056.056.0Cloudy/Rain 50sVMP-559196.0Syringe13128VMP-6594713138VMP-7554713110VMP-8/DUP-0203226010/552214316SGSGSGSGTemp.Temp.Temp.Temp.SoilSoilSoilSoil6.06.06.015.015.015.011.512:122/3/2212:552/3/2214:162/3/2214:50SyringeSyringeSyringe3.03.03.03.028.822.431.521.51,900.01,520.00.00.0ppmTHV%ppm%ppm%ppm%YesNoYesNoYesNoYesNoYesNoYesNoYesNoYesNo Sub-Slab / Soil Gas Vapor QA/QC Field FormProject No.:____________________Depth of ScreenDate & TimeAmbient Temp.Purge Method9ROXPH3XUJHGHelium Conc.ShroudHelium Conc.PurgeLeak Test PassedYes / No SS, SGperm., temp.concrete, wood, asphalt, grass, soil, gravel etc.thicknessinches(if appl.)ft bgsmm/dd/yy 24-hour clockoFsyringe, peristaltic, etc.Liters VHHQRWHVIRUFDOF %% or ppm(indicate units below)Yes / No(see note)S:C:R:S:C:R:S:C:R:S:C:R:S= sample; C/R = canister/regulator; SS = sub-slab; SG = soil gas; perm = permanent; temp = temporary9ROXPH3XUJHG [SXUJHYROXPH  / D/ OHQJWKRIWXELQJSLSH IW D IRUGLDPHWHU /IW  IRUGLDPHWHU /IW Helium Leak TestCanister / RegulatorShut-in Test PassedGround SurfaceID NumbersSample / Canister / RegulatorTypeVapor Monitoring Point ConstructionGeneral Field Sketch of Sample LocationsSampler(s):___________________________________________________________Weather:___________________________________________________________Notes:___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ Note: Leak Test Requirements Per NC DEQ DWM Vapor Intrusion Guidance, leak test passes if helium concentration in purge air is less than 10% of helium concentration in shroud. S:\BBB Master Templates\Forms - Soil Gas\Sub-slab & Soil Gas QA_QC Field FormSub-Slab / Soil Gas Sampling Vapor QA/QC Field FormHart & Hickman, PCLSG-0012/3/2254.052.060.061.0Cloudy/Rain 50s-60sVMP-960016.0Syringe14329VMP-10598914295VMP-11593513125VMP-12590713119SGSGSGSGTemp.Temp.Temp.Temp.SoilSoilSoilSoil6.06.06.012.015.015.015.015:212/3/2216:102/4/2209:442/4/2210:15SyringeSyringeSyringe3.03.03.03.029.232.424.724.60.00.00.00.0ppmTHV%ppm%ppm%ppm%YesNoYesNoYesNoYesNoYesNoYesNoYesNoYesNo Sub-Slab / Soil Gas Vapor QA/QC Field FormProject No.:____________________Depth of ScreenDate & TimeAmbient Temp.Purge Method9ROXPH3XUJHGHelium Conc.ShroudHelium Conc.PurgeLeak Test PassedYes / No SS, SGperm., temp.concrete, wood, asphalt, grass, soil, gravel etc.thicknessinches(if appl.)ft bgsmm/dd/yy 24-hour clockoFsyringe, peristaltic, etc.Liters VHHQRWHVIRUFDOF %% or ppm(indicate units below)Yes / No(see note)S:C:R:S:C:R:S:C:R:S:C:R:S= sample; C/R = canister/regulator; SS = sub-slab; SG = soil gas; perm = permanent; temp = temporary9ROXPH3XUJHG [SXUJHYROXPH  / D/ OHQJWKRIWXELQJSLSH IW D IRUGLDPHWHU /IW  IRUGLDPHWHU /IW Helium Leak TestCanister / RegulatorShut-in Test PassedGround SurfaceID NumbersSample / Canister / RegulatorTypeVapor Monitoring Point ConstructionGeneral Field Sketch of Sample LocationsSampler(s):___________________________________________________________Weather:___________________________________________________________Notes:___________________________________________________________ ___________________________________________________________ ___________________________________________________________ ___________________________________________________________ Note: Leak Test Requirements Per NC DEQ DWM Vapor Intrusion Guidance, leak test passes if helium concentration in purge air is less than 10% of helium concentration in shroud. S:\BBB Master Templates\Forms - Soil Gas\Sub-slab & Soil Gas QA_QC Field FormSub-Slab / Soil Gas Sampling Vapor QA/QC Field FormHart & Hickman, PCLSG-0012/4/2261.061.0Cloudy Rain-50s-60sVMP-1357696.0Syringe14315VMP-14585814306SGSGTemp.Temp.SoilSoil6.012.015.010:502/4/2211:20Syringe3.03.030.724.50.00.0ppmTHV%ppm%ppm%ppm%YesNoYesNoYesNoYesNoYesNoYesNoYesNoYesNo Appendix C Laboratory Analytical Reports   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.   2/11/2022 Hart & Hickman (Charlotte) Shannon Cottrill 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 22-035-0036 Client Project Description: LSG-001 Dear Shannon Cottrill: Waypoint Analytical, LLC (Charlotte) received sample(s) on 2/4/2022 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 39 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 00016/22-035-0036 Page 2 of 39 Report Number: Sample Summary Table Client Project Description: 22-035-0036 LSG-001 Lab No Client Sample ID Matrix Date Collected Date Received 02/03/2022 15:01Air 93529 VMP-8 02/04/2022 14:30 02/03/2022Air 93530 DUP-020322 02/04/2022 14:30 02/03/2022 12:24Air 93531 VMP-5 02/04/2022 14:30 02/03/2022 14:25Air 93532 VMP-7 02/04/2022 14:30 02/03/2022 16:25Air 93533 VMP-10 02/04/2022 14:30 02/03/2022 13:06Air 93534 VMP-6 02/04/2022 14:30 02/03/2022 15:36Air 93535 VMP-9 02/04/2022 14:30 Page 3 of 39 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-035-0036 Report Limit Project:LSG-001 V 93529VMP-8 83.9 02/08/2022 23:26TO-15 Acetone µg/m3 0.202 20.6 02/08/2022 23:26TO-15 Benzene µg/m3 0.0733 34.5 02/08/2022 23:26TO-15 1,3-Butadiene µg/m3 0.328 J0.616 02/08/2022 23:26TO-15 Carbon Tetrachloride µg/m3 0.155 22.7 02/08/2022 23:26TO-15 Chloroform µg/m3 0.0864 9.98 02/08/2022 23:26TO-15 Cyclohexane µg/m3 0.161 7.18 02/08/2022 23:26TO-15 Dichlorodifluoromethane µg/m3 0.134 29.3 02/08/2022 23:26TO-15 Ethylbenzene µg/m3 0.106 8.06 02/08/2022 23:26TO-15 4-Ethyltoluene µg/m3 0.128 J1.46 02/08/2022 23:26TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561 70.8 02/08/2022 23:26TO-15 Heptane µg/m3 0.143 22.9 02/08/2022 23:26TO-15 n-Hexane µg/m3 0.0472 13.8 02/08/2022 23:26TO-15 2-Hexanone µg/m3 0.285 6.17 02/08/2022 23:26TO-15 Isopropyl Alchohol µg/m3 0.139 15.3 02/08/2022 23:26TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 11.0 02/08/2022 23:26TO-15 4-Methyl-2-Pentanone µg/m3 0.121 6.90 02/08/2022 23:26TO-15 Methylene Chloride µg/m3 0.489 5.66 02/08/2022 23:26TO-15 Naphthalene µg/m3 0.183 92.6 02/05/2022 05:05TO-15 Propene µg/m3 4.84 4.70 02/08/2022 23:26TO-15 Styrene µg/m3 0.124 6.02 02/08/2022 23:26TO-15 Tetrachloroethene µg/m3 0.181 J1.37 02/08/2022 23:26TO-15 Tetrahydrofuran µg/m3 0.107 184 02/05/2022 05:05TO-15 Toluene µg/m3 1.80 J1.04 02/08/2022 23:26TO-15 1,1,1-Trichloroethane µg/m3 0.144 148 02/08/2022 23:26TO-15 Trichlorofluoromethane µg/m3 0.130 27.6 02/08/2022 23:26TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 8.24 02/08/2022 23:26TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 33.6 02/08/2022 23:26TO-15 o-Xylene µg/m3 0.157 96.7 02/08/2022 23:26TO-15 m,p-Xylene µg/m3 0.217 130 02/08/2022 23:26TO-15 Xylene (Total)µg/m3 0.157 V 93530DUP-020322 80.1 02/09/2022 00:17TO-15 Acetone µg/m3 0.202 19.6 02/09/2022 00:17TO-15 Benzene µg/m3 0.0733 31.8 02/09/2022 00:17TO-15 1,3-Butadiene µg/m3 0.328 B7.63 02/09/2022 00:17TO-15 Carbon Disulfide µg/m3 0.0608 21.3 02/09/2022 00:17TO-15 Chloroform µg/m3 0.0864 Page 4 of 39 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-035-0036 Report Limit Project:LSG-001 V 93530DUP-020322 8.64 02/09/2022 00:17TO-15 Cyclohexane µg/m3 0.161 7.21 02/09/2022 00:17TO-15 Dichlorodifluoromethane µg/m3 0.134 26.3 02/09/2022 00:17TO-15 Ethylbenzene µg/m3 0.106 7.69 02/09/2022 00:17TO-15 4-Ethyltoluene µg/m3 0.128 J0.958 02/09/2022 00:17TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561 65.4 02/09/2022 00:17TO-15 Heptane µg/m3 0.143 22.0 02/09/2022 00:17TO-15 n-Hexane µg/m3 0.0472 13.3 02/09/2022 00:17TO-15 2-Hexanone µg/m3 0.285 14.7 02/09/2022 00:17TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 10.9 02/09/2022 00:17TO-15 4-Methyl-2-Pentanone µg/m3 0.121 9.74 02/09/2022 00:17TO-15 Methylene Chloride µg/m3 0.489 5.44 02/09/2022 00:17TO-15 Naphthalene µg/m3 0.183 86.7 02/05/2022 05:43TO-15 Propene µg/m3 4.84 4.66 02/09/2022 00:17TO-15 Styrene µg/m3 0.124 5.56 02/09/2022 00:17TO-15 Tetrachloroethene µg/m3 0.181 2.05 02/09/2022 00:17TO-15 Tetrahydrofuran µg/m3 0.107 173 02/05/2022 05:43TO-15 Toluene µg/m3 1.80 J0.949 02/09/2022 00:17TO-15 1,1,1-Trichloroethane µg/m3 0.144 138 02/09/2022 00:17TO-15 Trichlorofluoromethane µg/m3 0.130 24.9 02/09/2022 00:17TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 7.44 02/09/2022 00:17TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 30.8 02/09/2022 00:17TO-15 o-Xylene µg/m3 0.157 89.0 02/09/2022 00:17TO-15 m,p-Xylene µg/m3 0.217 120 02/09/2022 00:17TO-15 Xylene (Total)µg/m3 0.157 V 93531VMP-5 50.4 02/09/2022 01:09TO-15 Acetone µg/m3 0.202 3.93 02/09/2022 01:09TO-15 Benzene µg/m3 0.0733 9.19 02/09/2022 01:09TO-15 1,3-Butadiene µg/m3 0.328 JB1.46 02/09/2022 01:09TO-15 Carbon Disulfide µg/m3 0.0608 3.65 02/09/2022 01:09TO-15 Chloroform µg/m3 0.0864 10.8 02/09/2022 01:09TO-15 Cyclohexane µg/m3 0.161 3.85 02/09/2022 01:09TO-15 Dichlorodifluoromethane µg/m3 0.134 4.25 02/09/2022 01:09TO-15 Ethylbenzene µg/m3 0.106 J1.64 02/09/2022 01:09TO-15 4-Ethyltoluene µg/m3 0.128 11.6 02/09/2022 01:09TO-15 Heptane µg/m3 0.143 3.09 02/09/2022 01:09TO-15 n-Hexane µg/m3 0.0472 Page 5 of 39 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-035-0036 Report Limit Project:LSG-001 V 93531VMP-5 5.22 02/09/2022 01:09TO-15 2-Hexanone µg/m3 0.285 9.71 02/09/2022 01:09TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 5.56 02/09/2022 01:09TO-15 4-Methyl-2-Pentanone µg/m3 0.121 J1.07 02/09/2022 01:09TO-15 Methylene Chloride µg/m3 0.489 4.31 02/09/2022 01:09TO-15 Naphthalene µg/m3 0.183 38.7 02/09/2022 01:09TO-15 Propene µg/m3 0.242 4.64 02/09/2022 01:09TO-15 Styrene µg/m3 0.124 12.1 02/09/2022 01:09TO-15 Tetrachloroethene µg/m3 0.181 31.7 02/09/2022 01:09TO-15 Toluene µg/m3 0.0901 J1.29 02/09/2022 01:09TO-15 1,1,1-Trichloroethane µg/m3 0.144 279 02/09/2022 01:09TO-15 Trichlorofluoromethane µg/m3 0.130 6.85 02/09/2022 01:09TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J2.11 02/09/2022 01:09TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 4.83 02/09/2022 01:09TO-15 o-Xylene µg/m3 0.157 14.0 02/09/2022 01:09TO-15 m,p-Xylene µg/m3 0.217 18.8 02/09/2022 01:09TO-15 Xylene (Total)µg/m3 0.157 V 93532VMP-7 65.8 02/09/2022 02:03TO-15 Acetone µg/m3 0.202 3.28 02/09/2022 02:03TO-15 Benzene µg/m3 0.0733 9.16 02/09/2022 02:03TO-15 1,3-Butadiene µg/m3 0.328 JB2.98 02/09/2022 02:03TO-15 Carbon Disulfide µg/m3 0.0608 J1.04 02/09/2022 02:03TO-15 Carbon Tetrachloride µg/m3 0.155 8.38 02/09/2022 02:03TO-15 Chloroform µg/m3 0.0864 9.22 02/09/2022 02:03TO-15 Cyclohexane µg/m3 0.161 6.56 02/09/2022 02:03TO-15 Dichlorodifluoromethane µg/m3 0.134 4.12 02/09/2022 02:03TO-15 Ethylbenzene µg/m3 0.106 J1.53 02/09/2022 02:03TO-15 4-Ethyltoluene µg/m3 0.128 10.8 02/09/2022 02:03TO-15 Heptane µg/m3 0.143 4.56 02/09/2022 02:03TO-15 n-Hexane µg/m3 0.0472 4.39 02/09/2022 02:03TO-15 2-Hexanone µg/m3 0.285 14.1 02/09/2022 02:03TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 4.03 02/09/2022 02:03TO-15 4-Methyl-2-Pentanone µg/m3 0.121 16.3 02/09/2022 02:03TO-15 Naphthalene µg/m3 0.183 86.0 02/05/2022 07:00TO-15 Propene µg/m3 4.84 4.61 02/09/2022 02:03TO-15 Styrene µg/m3 0.124 36.2 02/09/2022 02:03TO-15 Tetrachloroethene µg/m3 0.181 Page 6 of 39 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-035-0036 Report Limit Project:LSG-001 V 93532VMP-7 J0.622 02/09/2022 02:03TO-15 Tetrahydrofuran µg/m3 0.107 30.9 02/09/2022 02:03TO-15 Toluene µg/m3 0.0901 14.0 02/09/2022 02:03TO-15 1,1,1-Trichloroethane µg/m3 0.144 1970 02/05/2022 07:00TO-15 Trichlorofluoromethane µg/m3 2.60 5.29 02/09/2022 02:03TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J1.38 02/09/2022 02:03TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 4.46 02/09/2022 02:03TO-15 o-Xylene µg/m3 0.157 13.4 02/09/2022 02:03TO-15 m,p-Xylene µg/m3 0.217 17.9 02/09/2022 02:03TO-15 Xylene (Total)µg/m3 0.157 V 93533VMP-10 75.4 02/09/2022 02:56TO-15 Acetone µg/m3 0.202 19.9 02/09/2022 02:56TO-15 Benzene µg/m3 0.0733 3.82 02/09/2022 02:56TO-15 Bromomethane µg/m3 0.115 21.0 02/09/2022 02:56TO-15 1,3-Butadiene µg/m3 0.328 96.7 02/09/2022 02:56TO-15 Chloroform µg/m3 0.0864 25.1 02/09/2022 02:56TO-15 Cyclohexane µg/m3 0.161 8.90 02/09/2022 02:56TO-15 Dichlorodifluoromethane µg/m3 0.134 29.8 02/09/2022 02:56TO-15 Ethylbenzene µg/m3 0.106 6.52 02/09/2022 02:56TO-15 4-Ethyltoluene µg/m3 0.128 J2.64 02/09/2022 02:56TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561 110 02/09/2022 02:56TO-15 Heptane µg/m3 0.143 25.6 02/09/2022 02:56TO-15 n-Hexane µg/m3 0.0472 17.0 02/09/2022 02:56TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 7.34 02/09/2022 02:56TO-15 4-Methyl-2-Pentanone µg/m3 0.121 229 02/05/2022 07:39TO-15 Propene µg/m3 4.84 4.62 02/09/2022 02:56TO-15 Styrene µg/m3 0.124 10.6 02/09/2022 02:56TO-15 Tetrachloroethene µg/m3 0.181 1.76 02/09/2022 02:56TO-15 Tetrahydrofuran µg/m3 0.107 274 02/05/2022 07:39TO-15 Toluene µg/m3 1.80 12.4 02/09/2022 02:56TO-15 1,1,1-Trichloroethane µg/m3 0.144 367 02/05/2022 07:39TO-15 Trichlorofluoromethane µg/m3 2.60 23.0 02/09/2022 02:56TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 14.6 02/09/2022 02:56TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 32.7 02/09/2022 02:56TO-15 o-Xylene µg/m3 0.157 96.1 02/09/2022 02:56TO-15 m,p-Xylene µg/m3 0.217 129 02/09/2022 02:56TO-15 Xylene (Total)µg/m3 0.157 Page 7 of 39 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-035-0036 Report Limit Project:LSG-001 V 93534VMP-6 85.8 02/09/2022 03:48TO-15 Acetone µg/m3 0.202 7.32 02/09/2022 03:48TO-15 Benzene µg/m3 0.0733 21.8 02/09/2022 03:48TO-15 1,3-Butadiene µg/m3 0.328 43.9 02/09/2022 03:48TO-15 Chloroform µg/m3 0.0864 15.6 02/09/2022 03:48TO-15 Cyclohexane µg/m3 0.161 6.04 02/09/2022 03:48TO-15 Ethylbenzene µg/m3 0.106 3.07 02/09/2022 03:48TO-15 4-Ethyltoluene µg/m3 0.128 36.7 02/09/2022 03:48TO-15 Heptane µg/m3 0.143 13.9 02/09/2022 03:48TO-15 n-Hexane µg/m3 0.0472 7.61 02/09/2022 03:48TO-15 2-Hexanone µg/m3 0.285 17.5 02/09/2022 03:48TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 5.55 02/09/2022 03:48TO-15 4-Methyl-2-Pentanone µg/m3 0.121 4.39 02/09/2022 03:48TO-15 Naphthalene µg/m3 0.183 178 02/05/2022 08:17TO-15 Propene µg/m3 4.84 4.95 02/09/2022 03:48TO-15 Styrene µg/m3 0.124 20.2 02/09/2022 03:48TO-15 Tetrachloroethene µg/m3 0.181 55.6 02/09/2022 03:48TO-15 Toluene µg/m3 0.0901 J2.61 02/09/2022 03:48TO-15 1,1,1-Trichloroethane µg/m3 0.144 2250 02/05/2022 08:17TO-15 Trichlorofluoromethane µg/m3 2.60 11.2 02/09/2022 03:48TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 2.99 02/09/2022 03:48TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 6.66 02/09/2022 03:48TO-15 o-Xylene µg/m3 0.157 18.4 02/09/2022 03:48TO-15 m,p-Xylene µg/m3 0.217 25.1 02/09/2022 03:48TO-15 Xylene (Total)µg/m3 0.157 V 93535VMP-9 106 02/09/2022 04:40TO-15 Acetone µg/m3 0.202 34.8 02/09/2022 04:40TO-15 Benzene µg/m3 0.0733 J1.63 02/09/2022 04:40TO-15 Bromomethane µg/m3 0.115 39.1 02/09/2022 04:40TO-15 1,3-Butadiene µg/m3 0.328 B7.67 02/09/2022 04:40TO-15 Carbon Disulfide µg/m3 0.0608 J0.755 02/09/2022 04:40TO-15 Carbon Tetrachloride µg/m3 0.155 5.23 02/09/2022 04:40TO-15 Chloroform µg/m3 0.0864 15.5 02/09/2022 04:40TO-15 Cyclohexane µg/m3 0.161 20.8 02/09/2022 04:40TO-15 Dichlorodifluoromethane µg/m3 0.134 42.0 02/09/2022 04:40TO-15 Ethylbenzene µg/m3 0.106 6.38 02/09/2022 04:40TO-15 4-Ethyltoluene µg/m3 0.128 Page 8 of 39 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-035-0036 Report Limit Project:LSG-001 V 93535VMP-9 J2.87 02/09/2022 04:40TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561 178 02/09/2022 04:40TO-15 Heptane µg/m3 0.143 27.4 02/09/2022 04:40TO-15 n-Hexane µg/m3 0.0472 18.2 02/09/2022 04:40TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 5.90 02/09/2022 04:40TO-15 4-Methyl-2-Pentanone µg/m3 0.121 2.82 02/09/2022 04:40TO-15 Methylene Chloride µg/m3 0.489 4.45 02/09/2022 04:40TO-15 Naphthalene µg/m3 0.183 124 02/05/2022 08:56TO-15 Propene µg/m3 4.84 4.70 02/09/2022 04:40TO-15 Styrene µg/m3 0.124 6.01 02/09/2022 04:40TO-15 Tetrachloroethene µg/m3 0.181 1.68 02/09/2022 04:40TO-15 Tetrahydrofuran µg/m3 0.107 367 02/05/2022 08:56TO-15 Toluene µg/m3 1.80 289 02/05/2022 08:56TO-15 Trichlorofluoromethane µg/m3 2.60 18.2 02/09/2022 04:40TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 6.14 02/09/2022 04:40TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 44.5 02/09/2022 04:40TO-15 o-Xylene µg/m3 0.157 133 02/09/2022 04:40TO-15 m,p-Xylene µg/m3 0.217 178 02/09/2022 04:40TO-15 Xylene (Total)µg/m3 0.157 Page 9 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-8 93529 Matrix: 2/3/2022 15:01 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 83.9 µg/m3 0.202 4.75Acetone 1 02/08/22 23:26 V14736ENM 20.6 µg/m3 0.0733 1.60Benzene 1 02/08/22 23:26 V14736ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/08/22 23:26 V14736ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/08/22 23:26 V14736ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/08/22 23:26 V14736ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/08/22 23:26 V14736ENM 34.5 µg/m3 0.328 1.111,3-Butadiene 1 02/08/22 23:26 V14736ENM <0.0608 µg/m3 0.0608 6.23Carbon Disulfide 1 02/08/22 23:26 V14736ENM 0.616 J µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/08/22 23:26 V14736ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/08/22 23:26 V14736ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/08/22 23:26 V14736ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/08/22 23:26 V14736ENM 22.7 µg/m3 0.0864 2.44Chloroform 1 02/08/22 23:26 V14736ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/08/22 23:26 V14736ENM 9.98 µg/m3 0.161 3.44Cyclohexane 1 02/08/22 23:26 V14736ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/08/22 23:26 V14736ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/08/22 23:26 V14736ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/08/22 23:26 V14736ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/08/22 23:26 V14736ENM 7.18 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/08/22 23:26 V14736ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/08/22 23:26 V14736ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/08/22 23:26 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 10 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-8 93529 Matrix: 2/3/2022 15:01 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/08/22 23:26 V14736ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/08/22 23:26 V14736ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/08/22 23:26 V14736ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/08/22 23:26 V14736ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/08/22 23:26 V14736ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/08/22 23:26 V14736ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/08/22 23:26 V14736ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/08/22 23:26 V14736ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/08/22 23:26 V14736ENM 29.3 µg/m3 0.106 2.17Ethylbenzene 1 02/08/22 23:26 V14736ENM 8.06 µg/m3 0.128 2.464-Ethyltoluene 1 02/08/22 23:26 V14736ENM 1.46 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/08/22 23:26 V14736ENM 70.8 µg/m3 0.143 2.05Heptane 1 02/08/22 23:26 V14736ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/08/22 23:26 V14736ENM 22.9 µg/m3 0.0472 1.76n-Hexane 1 02/08/22 23:26 V14736ENM 13.8 µg/m3 0.285 2.05 2-Hexanone 1 02/08/22 23:26 V14736ENM 6.17 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/08/22 23:26 V14736ENM 15.3 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/08/22 23:26 V14736ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/08/22 23:26 V14736ENM 11.0 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/08/22 23:26 V14736ENM 6.90 µg/m3 0.489 1.74Methylene Chloride 1 02/08/22 23:26 V14736ENM 5.66 µg/m3 0.183 2.62Naphthalene 1 02/08/22 23:26 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 11 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-8 93529 Matrix: 2/3/2022 15:01 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 92.6 µg/m3 4.84 17.2Propene 20 02/05/22 05:05 V14855ENM 4.70 µg/m3 0.124 2.13Styrene 1 02/08/22 23:26 V14736ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/08/22 23:26 V14736ENM 6.02 µg/m3 0.181 3.39Tetrachloroethene 1 02/08/22 23:26 V14736ENM 1.37 J µg/m3 0.107 1.47Tetrahydrofuran 1 02/08/22 23:26 V14736ENM 184 µg/m3 1.80 37.7Toluene 20 02/05/22 05:05 V14855ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/08/22 23:26 V14736ENM 1.04 J µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/08/22 23:26 V14736ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/08/22 23:26 V14736ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/08/22 23:26 V14736ENM 148 µg/m3 0.130 2.81Trichlorofluoromethane 1 02/08/22 23:26 V14736ENM 27.6 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/08/22 23:26 V14736ENM 8.24 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/08/22 23:26 V14736ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/08/22 23:26 V14736ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/08/22 23:26 V14736ENM 33.6 µg/m3 0.157 2.17 o-Xylene 1 02/08/22 23:26 V14736ENM 96.7 µg/m3 0.217 5.65m,p-Xylene 1 02/08/22 23:26 V14736ENM 130 µg/m3 0.157 2.17Xylene (Total)1 02/08/22 23:26 V14736 Surrogate: 4-Bromofluorobenzene 95.0 Limits: 70-130%02/08/22 23:261 ENM V14736 Surrogate: 4-Bromofluorobenzene 90.5 Limits: 70-130%02/05/22 05:0520 ENM V14855 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 12 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:DUP-020322 93530 Matrix: 2/3/2022 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 80.1 µg/m3 0.202 4.75Acetone 1 02/09/22 00:17 V14736ENM 19.6 µg/m3 0.0733 1.60Benzene 1 02/09/22 00:17 V14736ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/09/22 00:17 V14736ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/09/22 00:17 V14736ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/09/22 00:17 V14736ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/09/22 00:17 V14736ENM 31.8 µg/m3 0.328 1.111,3-Butadiene 1 02/09/22 00:17 V14736ENM 7.63 B µg/m3 0.0608 6.23Carbon Disulfide 1 02/09/22 00:17 V14736ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/09/22 00:17 V14736ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/09/22 00:17 V14736ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/09/22 00:17 V14736ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/09/22 00:17 V14736ENM 21.3 µg/m3 0.0864 2.44Chloroform 1 02/09/22 00:17 V14736ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/09/22 00:17 V14736ENM 8.64 µg/m3 0.161 3.44Cyclohexane 1 02/09/22 00:17 V14736ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/09/22 00:17 V14736ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/09/22 00:17 V14736ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/09/22 00:17 V14736ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/09/22 00:17 V14736ENM 7.21 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/09/22 00:17 V14736ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/09/22 00:17 V14736ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/09/22 00:17 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 13 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:DUP-020322 93530 Matrix: 2/3/2022 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/09/22 00:17 V14736ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/09/22 00:17 V14736ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/09/22 00:17 V14736ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/09/22 00:17 V14736ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/09/22 00:17 V14736ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/09/22 00:17 V14736ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/09/22 00:17 V14736ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/09/22 00:17 V14736ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/09/22 00:17 V14736ENM 26.3 µg/m3 0.106 2.17Ethylbenzene 1 02/09/22 00:17 V14736ENM 7.69 µg/m3 0.128 2.464-Ethyltoluene 1 02/09/22 00:17 V14736ENM 0.958 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/09/22 00:17 V14736ENM 65.4 µg/m3 0.143 2.05Heptane 1 02/09/22 00:17 V14736ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/09/22 00:17 V14736ENM 22.0 µg/m3 0.0472 1.76n-Hexane 1 02/09/22 00:17 V14736ENM 13.3 µg/m3 0.285 2.05 2-Hexanone 1 02/09/22 00:17 V14736ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/09/22 00:17 V14736ENM 14.7 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/09/22 00:17 V14736ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/09/22 00:17 V14736ENM 10.9 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/09/22 00:17 V14736ENM 9.74 µg/m3 0.489 1.74Methylene Chloride 1 02/09/22 00:17 V14736ENM 5.44 µg/m3 0.183 2.62Naphthalene 1 02/09/22 00:17 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 14 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:DUP-020322 93530 Matrix: 2/3/2022 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 86.7 µg/m3 4.84 17.2Propene 20 02/05/22 05:43 V14855ENM 4.66 µg/m3 0.124 2.13Styrene 1 02/09/22 00:17 V14736ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/09/22 00:17 V14736ENM 5.56 µg/m3 0.181 3.39Tetrachloroethene 1 02/09/22 00:17 V14736ENM 2.05 µg/m3 0.107 1.47Tetrahydrofuran 1 02/09/22 00:17 V14736ENM 173 µg/m3 1.80 37.7Toluene 20 02/05/22 05:43 V14855ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/09/22 00:17 V14736ENM 0.949 J µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/09/22 00:17 V14736ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/09/22 00:17 V14736ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/09/22 00:17 V14736ENM 138 µg/m3 0.130 2.81Trichlorofluoromethane 1 02/09/22 00:17 V14736ENM 24.9 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/09/22 00:17 V14736ENM 7.44 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/09/22 00:17 V14736ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/09/22 00:17 V14736ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/09/22 00:17 V14736ENM 30.8 µg/m3 0.157 2.17 o-Xylene 1 02/09/22 00:17 V14736ENM 89.0 µg/m3 0.217 5.65m,p-Xylene 1 02/09/22 00:17 V14736ENM 120 µg/m3 0.157 2.17Xylene (Total)1 02/09/22 00:17 V14736 Surrogate: 4-Bromofluorobenzene 92.2 Limits: 70-130%02/09/22 00:171 ENM V14736 Surrogate: 4-Bromofluorobenzene 93.6 Limits: 70-130%02/05/22 05:4320 ENM V14855 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 15 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-5 93531 Matrix: 2/3/2022 12:24 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):V14730 02/08/22 09:00 50.4 µg/m3 0.202 4.75Acetone 1 02/09/22 01:09 V14736ENM 3.93 µg/m3 0.0733 1.60Benzene 1 02/09/22 01:09 V14736ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/09/22 01:09 V14736ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/09/22 01:09 V14736ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/09/22 01:09 V14736ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/09/22 01:09 V14736ENM 9.19 µg/m3 0.328 1.111,3-Butadiene 1 02/09/22 01:09 V14736ENM 1.46 JB µg/m3 0.0608 6.23Carbon Disulfide 1 02/09/22 01:09 V14736ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/09/22 01:09 V14736ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/09/22 01:09 V14736ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/09/22 01:09 V14736ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/09/22 01:09 V14736ENM 3.65 µg/m3 0.0864 2.44Chloroform 1 02/09/22 01:09 V14736ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/09/22 01:09 V14736ENM 10.8 µg/m3 0.161 3.44Cyclohexane 1 02/09/22 01:09 V14736ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/09/22 01:09 V14736ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/09/22 01:09 V14736ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/09/22 01:09 V14736ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/09/22 01:09 V14736ENM 3.85 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/09/22 01:09 V14736ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/09/22 01:09 V14736ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/09/22 01:09 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 16 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-5 93531 Matrix: 2/3/2022 12:24 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):V14730 02/08/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/09/22 01:09 V14736ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/09/22 01:09 V14736ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/09/22 01:09 V14736ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/09/22 01:09 V14736ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/09/22 01:09 V14736ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/09/22 01:09 V14736ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/09/22 01:09 V14736ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/09/22 01:09 V14736ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/09/22 01:09 V14736ENM 4.25 µg/m3 0.106 2.17Ethylbenzene 1 02/09/22 01:09 V14736ENM 1.64 J µg/m3 0.128 2.464-Ethyltoluene 1 02/09/22 01:09 V14736ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/09/22 01:09 V14736ENM 11.6 µg/m3 0.143 2.05Heptane 1 02/09/22 01:09 V14736ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/09/22 01:09 V14736ENM 3.09 µg/m3 0.0472 1.76n-Hexane 1 02/09/22 01:09 V14736ENM 5.22 µg/m3 0.285 2.05 2-Hexanone 1 02/09/22 01:09 V14736ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/09/22 01:09 V14736ENM 9.71 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/09/22 01:09 V14736ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/09/22 01:09 V14736ENM 5.56 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/09/22 01:09 V14736ENM 1.07 J µg/m3 0.489 1.74Methylene Chloride 1 02/09/22 01:09 V14736ENM 4.31 µg/m3 0.183 2.62Naphthalene 1 02/09/22 01:09 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 17 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-5 93531 Matrix: 2/3/2022 12:24 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):V14730 02/08/22 09:00 38.7 µg/m3 0.242 0.861Propene 1 02/09/22 01:09 V14736ENM 4.64 µg/m3 0.124 2.13Styrene 1 02/09/22 01:09 V14736ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/09/22 01:09 V14736ENM 12.1 µg/m3 0.181 3.39Tetrachloroethene 1 02/09/22 01:09 V14736ENM <0.107 µg/m3 0.107 1.47Tetrahydrofuran 1 02/09/22 01:09 V14736ENM 31.7 µg/m3 0.0901 1.88Toluene 1 02/09/22 01:09 V14736ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/09/22 01:09 V14736ENM 1.29 J µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/09/22 01:09 V14736ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/09/22 01:09 V14736ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/09/22 01:09 V14736ENM 279 µg/m3 0.130 2.81Trichlorofluoromethane 1 02/09/22 01:09 V14736ENM 6.85 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/09/22 01:09 V14736ENM 2.11 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/09/22 01:09 V14736ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/09/22 01:09 V14736ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/09/22 01:09 V14736ENM 4.83 µg/m3 0.157 2.17 o-Xylene 1 02/09/22 01:09 V14736ENM 14.0 µg/m3 0.217 5.65m,p-Xylene 1 02/09/22 01:09 V14736ENM 18.8 µg/m3 0.157 2.17Xylene (Total)1 02/09/22 01:09 V14736 Surrogate: 4-Bromofluorobenzene 93.9 Limits: 70-130%02/09/22 01:091 ENM V14736 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 18 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-7 93532 Matrix: 2/3/2022 14:25 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 65.8 µg/m3 0.202 4.75Acetone 1 02/09/22 02:03 V14736ENM 3.28 µg/m3 0.0733 1.60Benzene 1 02/09/22 02:03 V14736ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/09/22 02:03 V14736ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/09/22 02:03 V14736ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/09/22 02:03 V14736ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/09/22 02:03 V14736ENM 9.16 µg/m3 0.328 1.111,3-Butadiene 1 02/09/22 02:03 V14736ENM 2.98 JB µg/m3 0.0608 6.23Carbon Disulfide 1 02/09/22 02:03 V14736ENM 1.04 J µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/09/22 02:03 V14736ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/09/22 02:03 V14736ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/09/22 02:03 V14736ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/09/22 02:03 V14736ENM 8.38 µg/m3 0.0864 2.44Chloroform 1 02/09/22 02:03 V14736ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/09/22 02:03 V14736ENM 9.22 µg/m3 0.161 3.44Cyclohexane 1 02/09/22 02:03 V14736ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/09/22 02:03 V14736ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/09/22 02:03 V14736ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/09/22 02:03 V14736ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/09/22 02:03 V14736ENM 6.56 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/09/22 02:03 V14736ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/09/22 02:03 V14736ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/09/22 02:03 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 19 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-7 93532 Matrix: 2/3/2022 14:25 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/09/22 02:03 V14736ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/09/22 02:03 V14736ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/09/22 02:03 V14736ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/09/22 02:03 V14736ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/09/22 02:03 V14736ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/09/22 02:03 V14736ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/09/22 02:03 V14736ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/09/22 02:03 V14736ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/09/22 02:03 V14736ENM 4.12 µg/m3 0.106 2.17Ethylbenzene 1 02/09/22 02:03 V14736ENM 1.53 J µg/m3 0.128 2.464-Ethyltoluene 1 02/09/22 02:03 V14736ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/09/22 02:03 V14736ENM 10.8 µg/m3 0.143 2.05Heptane 1 02/09/22 02:03 V14736ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/09/22 02:03 V14736ENM 4.56 µg/m3 0.0472 1.76n-Hexane 1 02/09/22 02:03 V14736ENM 4.39 µg/m3 0.285 2.05 2-Hexanone 1 02/09/22 02:03 V14736ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/09/22 02:03 V14736ENM 14.1 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/09/22 02:03 V14736ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/09/22 02:03 V14736ENM 4.03 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/09/22 02:03 V14736ENM <0.489 µg/m3 0.489 1.74Methylene Chloride 1 02/09/22 02:03 V14736ENM 16.3 µg/m3 0.183 2.62Naphthalene 1 02/09/22 02:03 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 20 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-7 93532 Matrix: 2/3/2022 14:25 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 86.0 µg/m3 4.84 17.2Propene 20 02/05/22 07:00 V14855ENM 4.61 µg/m3 0.124 2.13Styrene 1 02/09/22 02:03 V14736ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/09/22 02:03 V14736ENM 36.2 µg/m3 0.181 3.39Tetrachloroethene 1 02/09/22 02:03 V14736ENM 0.622 J µg/m3 0.107 1.47Tetrahydrofuran 1 02/09/22 02:03 V14736ENM 30.9 µg/m3 0.0901 1.88Toluene 1 02/09/22 02:03 V14736ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/09/22 02:03 V14736ENM 14.0 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/09/22 02:03 V14736ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/09/22 02:03 V14736ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/09/22 02:03 V14736ENM 1970 µg/m3 2.60 56.2Trichlorofluoromethane 20 02/05/22 07:00 V14855ENM 5.29 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/09/22 02:03 V14736ENM 1.38 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/09/22 02:03 V14736ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/09/22 02:03 V14736ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/09/22 02:03 V14736ENM 4.46 µg/m3 0.157 2.17 o-Xylene 1 02/09/22 02:03 V14736ENM 13.4 µg/m3 0.217 5.65m,p-Xylene 1 02/09/22 02:03 V14736ENM 17.9 µg/m3 0.157 2.17Xylene (Total)1 02/09/22 02:03 V14736 Surrogate: 4-Bromofluorobenzene 95.5 Limits: 70-130%02/09/22 02:031 ENM V14736 Surrogate: 4-Bromofluorobenzene 93.9 Limits: 70-130%02/05/22 07:0020 ENM V14855 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 21 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-10 93533 Matrix: 2/3/2022 16:25 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 75.4 µg/m3 0.202 4.75Acetone 1 02/09/22 02:56 V14736ENM 19.9 µg/m3 0.0733 1.60Benzene 1 02/09/22 02:56 V14736ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/09/22 02:56 V14736ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/09/22 02:56 V14736ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/09/22 02:56 V14736ENM 3.82 µg/m3 0.115 1.94Bromomethane 1 02/09/22 02:56 V14736ENM 21.0 µg/m3 0.328 1.111,3-Butadiene 1 02/09/22 02:56 V14736ENM <0.0608 µg/m3 0.0608 6.23Carbon Disulfide 1 02/09/22 02:56 V14736ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/09/22 02:56 V14736ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/09/22 02:56 V14736ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/09/22 02:56 V14736ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/09/22 02:56 V14736ENM 96.7 µg/m3 0.0864 2.44Chloroform 1 02/09/22 02:56 V14736ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/09/22 02:56 V14736ENM 25.1 µg/m3 0.161 3.44Cyclohexane 1 02/09/22 02:56 V14736ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/09/22 02:56 V14736ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/09/22 02:56 V14736ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/09/22 02:56 V14736ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/09/22 02:56 V14736ENM 8.90 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/09/22 02:56 V14736ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/09/22 02:56 V14736ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/09/22 02:56 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 22 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-10 93533 Matrix: 2/3/2022 16:25 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/09/22 02:56 V14736ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/09/22 02:56 V14736ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/09/22 02:56 V14736ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/09/22 02:56 V14736ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/09/22 02:56 V14736ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/09/22 02:56 V14736ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/09/22 02:56 V14736ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/09/22 02:56 V14736ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/09/22 02:56 V14736ENM 29.8 µg/m3 0.106 2.17Ethylbenzene 1 02/09/22 02:56 V14736ENM 6.52 µg/m3 0.128 2.464-Ethyltoluene 1 02/09/22 02:56 V14736ENM 2.64 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/09/22 02:56 V14736ENM 110 µg/m3 0.143 2.05Heptane 1 02/09/22 02:56 V14736ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/09/22 02:56 V14736ENM 25.6 µg/m3 0.0472 1.76n-Hexane 1 02/09/22 02:56 V14736ENM <0.285 µg/m3 0.285 2.05 2-Hexanone 1 02/09/22 02:56 V14736ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/09/22 02:56 V14736ENM 17.0 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/09/22 02:56 V14736ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/09/22 02:56 V14736ENM 7.34 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/09/22 02:56 V14736ENM <0.489 µg/m3 0.489 1.74Methylene Chloride 1 02/09/22 02:56 V14736ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 02/09/22 02:56 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 23 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-10 93533 Matrix: 2/3/2022 16:25 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 229 µg/m3 4.84 17.2Propene 20 02/05/22 07:39 V14855ENM 4.62 µg/m3 0.124 2.13Styrene 1 02/09/22 02:56 V14736ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/09/22 02:56 V14736ENM 10.6 µg/m3 0.181 3.39Tetrachloroethene 1 02/09/22 02:56 V14736ENM 1.76 µg/m3 0.107 1.47Tetrahydrofuran 1 02/09/22 02:56 V14736ENM 274 µg/m3 1.80 37.7Toluene 20 02/05/22 07:39 V14855ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/09/22 02:56 V14736ENM 12.4 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/09/22 02:56 V14736ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/09/22 02:56 V14736ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/09/22 02:56 V14736ENM 367 µg/m3 2.60 56.2Trichlorofluoromethane 20 02/05/22 07:39 V14855ENM 23.0 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/09/22 02:56 V14736ENM 14.6 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/09/22 02:56 V14736ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/09/22 02:56 V14736ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/09/22 02:56 V14736ENM 32.7 µg/m3 0.157 2.17 o-Xylene 1 02/09/22 02:56 V14736ENM 96.1 µg/m3 0.217 5.65m,p-Xylene 1 02/09/22 02:56 V14736ENM 129 µg/m3 0.157 2.17Xylene (Total)1 02/09/22 02:56 V14736 Surrogate: 4-Bromofluorobenzene 75.7 Limits: 70-130%02/09/22 02:561 ENM V14736 Surrogate: 4-Bromofluorobenzene 84.1 Limits: 70-130%02/05/22 07:3920 ENM V14855 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 24 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-6 93534 Matrix: 2/3/2022 13:06 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 85.8 µg/m3 0.202 4.75Acetone 1 02/09/22 03:48 V14736ENM 7.32 µg/m3 0.0733 1.60Benzene 1 02/09/22 03:48 V14736ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/09/22 03:48 V14736ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/09/22 03:48 V14736ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/09/22 03:48 V14736ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/09/22 03:48 V14736ENM 21.8 µg/m3 0.328 1.111,3-Butadiene 1 02/09/22 03:48 V14736ENM <0.0608 µg/m3 0.0608 6.23Carbon Disulfide 1 02/09/22 03:48 V14736ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/09/22 03:48 V14736ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/09/22 03:48 V14736ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/09/22 03:48 V14736ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/09/22 03:48 V14736ENM 43.9 µg/m3 0.0864 2.44Chloroform 1 02/09/22 03:48 V14736ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/09/22 03:48 V14736ENM 15.6 µg/m3 0.161 3.44Cyclohexane 1 02/09/22 03:48 V14736ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/09/22 03:48 V14736ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/09/22 03:48 V14736ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/09/22 03:48 V14736ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/09/22 03:48 V14736ENM <0.134 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/09/22 03:48 V14736ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/09/22 03:48 V14736ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/09/22 03:48 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 25 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-6 93534 Matrix: 2/3/2022 13:06 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/09/22 03:48 V14736ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/09/22 03:48 V14736ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/09/22 03:48 V14736ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/09/22 03:48 V14736ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/09/22 03:48 V14736ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/09/22 03:48 V14736ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/09/22 03:48 V14736ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/09/22 03:48 V14736ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/09/22 03:48 V14736ENM 6.04 µg/m3 0.106 2.17Ethylbenzene 1 02/09/22 03:48 V14736ENM 3.07 µg/m3 0.128 2.464-Ethyltoluene 1 02/09/22 03:48 V14736ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/09/22 03:48 V14736ENM 36.7 µg/m3 0.143 2.05Heptane 1 02/09/22 03:48 V14736ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/09/22 03:48 V14736ENM 13.9 µg/m3 0.0472 1.76n-Hexane 1 02/09/22 03:48 V14736ENM 7.61 µg/m3 0.285 2.05 2-Hexanone 1 02/09/22 03:48 V14736ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/09/22 03:48 V14736ENM 17.5 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/09/22 03:48 V14736ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/09/22 03:48 V14736ENM 5.55 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/09/22 03:48 V14736ENM <0.489 µg/m3 0.489 1.74Methylene Chloride 1 02/09/22 03:48 V14736ENM 4.39 µg/m3 0.183 2.62Naphthalene 1 02/09/22 03:48 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 26 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-6 93534 Matrix: 2/3/2022 13:06 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 178 µg/m3 4.84 17.2Propene 20 02/05/22 08:17 V14855ENM 4.95 µg/m3 0.124 2.13Styrene 1 02/09/22 03:48 V14736ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/09/22 03:48 V14736ENM 20.2 µg/m3 0.181 3.39Tetrachloroethene 1 02/09/22 03:48 V14736ENM <0.107 µg/m3 0.107 1.47Tetrahydrofuran 1 02/09/22 03:48 V14736ENM 55.6 µg/m3 0.0901 1.88Toluene 1 02/09/22 03:48 V14736ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/09/22 03:48 V14736ENM 2.61 J µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/09/22 03:48 V14736ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/09/22 03:48 V14736ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/09/22 03:48 V14736ENM 2250 µg/m3 2.60 56.2Trichlorofluoromethane 20 02/05/22 08:17 V14855ENM 11.2 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/09/22 03:48 V14736ENM 2.99 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/09/22 03:48 V14736ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/09/22 03:48 V14736ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/09/22 03:48 V14736ENM 6.66 µg/m3 0.157 2.17 o-Xylene 1 02/09/22 03:48 V14736ENM 18.4 µg/m3 0.217 5.65m,p-Xylene 1 02/09/22 03:48 V14736ENM 25.1 µg/m3 0.157 2.17Xylene (Total)1 02/09/22 03:48 V14736 Surrogate: 4-Bromofluorobenzene 96.1 Limits: 70-130%02/09/22 03:481 ENM V14736 Surrogate: 4-Bromofluorobenzene 95.5 Limits: 70-130%02/05/22 08:1720 ENM V14855 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 27 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-9 93535 Matrix: 2/3/2022 15:36 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 106 µg/m3 0.202 4.75Acetone 1 02/09/22 04:40 V14736ENM 34.8 µg/m3 0.0733 1.60Benzene 1 02/09/22 04:40 V14736ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/09/22 04:40 V14736ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/09/22 04:40 V14736ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/09/22 04:40 V14736ENM 1.63 J µg/m3 0.115 1.94Bromomethane 1 02/09/22 04:40 V14736ENM 39.1 µg/m3 0.328 1.111,3-Butadiene 1 02/09/22 04:40 V14736ENM 7.67 B µg/m3 0.0608 6.23Carbon Disulfide 1 02/09/22 04:40 V14736ENM 0.755 J µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/09/22 04:40 V14736ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/09/22 04:40 V14736ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/09/22 04:40 V14736ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/09/22 04:40 V14736ENM 5.23 µg/m3 0.0864 2.44Chloroform 1 02/09/22 04:40 V14736ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/09/22 04:40 V14736ENM 15.5 µg/m3 0.161 3.44Cyclohexane 1 02/09/22 04:40 V14736ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/09/22 04:40 V14736ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/09/22 04:40 V14736ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/09/22 04:40 V14736ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/09/22 04:40 V14736ENM 20.8 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/09/22 04:40 V14736ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/09/22 04:40 V14736ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/09/22 04:40 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 28 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-9 93535 Matrix: 2/3/2022 15:36 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/09/22 04:40 V14736ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/09/22 04:40 V14736ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/09/22 04:40 V14736ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/09/22 04:40 V14736ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/09/22 04:40 V14736ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/09/22 04:40 V14736ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/09/22 04:40 V14736ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/09/22 04:40 V14736ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/09/22 04:40 V14736ENM 42.0 µg/m3 0.106 2.17Ethylbenzene 1 02/09/22 04:40 V14736ENM 6.38 µg/m3 0.128 2.464-Ethyltoluene 1 02/09/22 04:40 V14736ENM 2.87 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/09/22 04:40 V14736ENM 178 µg/m3 0.143 2.05Heptane 1 02/09/22 04:40 V14736ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/09/22 04:40 V14736ENM 27.4 µg/m3 0.0472 1.76n-Hexane 1 02/09/22 04:40 V14736ENM <0.285 µg/m3 0.285 2.05 2-Hexanone 1 02/09/22 04:40 V14736ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/09/22 04:40 V14736ENM 18.2 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/09/22 04:40 V14736ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/09/22 04:40 V14736ENM 5.90 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/09/22 04:40 V14736ENM 2.82 µg/m3 0.489 1.74Methylene Chloride 1 02/09/22 04:40 V14736ENM 4.45 µg/m3 0.183 2.62Naphthalene 1 02/09/22 04:40 V14736ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 29 of 39 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0036 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-9 93535 Matrix: 2/3/2022 15:36 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):V14730 02/08/22 09:00 V14851 02/04/22 09:00 124 µg/m3 4.84 17.2Propene 20 02/05/22 08:56 V14855ENM 4.70 µg/m3 0.124 2.13Styrene 1 02/09/22 04:40 V14736ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/09/22 04:40 V14736ENM 6.01 µg/m3 0.181 3.39Tetrachloroethene 1 02/09/22 04:40 V14736ENM 1.68 µg/m3 0.107 1.47Tetrahydrofuran 1 02/09/22 04:40 V14736ENM 367 µg/m3 1.80 37.7Toluene 20 02/05/22 08:56 V14855ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/09/22 04:40 V14736ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/09/22 04:40 V14736ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/09/22 04:40 V14736ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/09/22 04:40 V14736ENM 289 µg/m3 2.60 56.2Trichlorofluoromethane 20 02/05/22 08:56 V14855ENM 18.2 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/09/22 04:40 V14736ENM 6.14 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/09/22 04:40 V14736ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/09/22 04:40 V14736ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/09/22 04:40 V14736ENM 44.5 µg/m3 0.157 2.17 o-Xylene 1 02/09/22 04:40 V14736ENM 133 µg/m3 0.217 5.65m,p-Xylene 1 02/09/22 04:40 V14736ENM 178 µg/m3 0.157 2.17Xylene (Total)1 02/09/22 04:40 V14736 Surrogate: 4-Bromofluorobenzene 94.7 Limits: 70-130%02/09/22 04:401 ENM V14736 Surrogate: 4-Bromofluorobenzene 91.6 Limits: 70-130%02/05/22 08:5620 ENM V14855 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 30 of 39 Quality Control Data 22-035-0036Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14736QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14730 Associated Lab Samples: 93529, 93530, 93531, 93532, 93533, 93534, 93535 LRB-V14730 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/08/22 11:274.750.2020.437µg/m3Acetone 02/08/22 11:271.600.0733<0.0733µg/m3Benzene 02/08/22 11:2710.40.148<0.148µg/m3Benzyl Chloride 02/08/22 11:273.350.150<0.150µg/m3Bromodichloromethane 02/08/22 11:275.170.153<0.153µg/m3Bromoform 02/08/22 11:271.940.115<0.115µg/m3Bromomethane 02/08/22 11:271.110.328<0.328µg/m31,3-Butadiene 02/08/22 11:276.230.06081.50µg/m3Carbon Disulfide 02/08/22 11:273.150.155<0.155µg/m3Carbon Tetrachloride 02/08/22 11:272.300.107<0.107µg/m3Chlorobenzene 02/08/22 11:274.260.208<0.208µg/m3Chlorodibromomethane 02/08/22 11:271.320.164<0.164µg/m3Chloroethane 02/08/22 11:272.440.0864<0.0864µg/m3Chloroform 02/08/22 11:271.030.0673<0.0673µg/m3Chloromethane 02/08/22 11:273.440.161<0.161µg/m3Cyclohexane 02/08/22 11:273.840.151<0.151µg/m31,2-Dibromoethane 02/08/22 11:273.010.0963<0.0963µg/m31,2-Dichlorobenzene 02/08/22 11:2712.00.174<0.174µg/m31,3-Dichlorobenzene 02/08/22 11:273.010.186<0.186µg/m31,4-Dichlorobenzene 02/08/22 11:272.470.134<0.134µg/m3Dichlorodifluoromethane 02/08/22 11:272.020.101<0.101µg/m31,1-Dichloroethane 02/08/22 11:272.020.129<0.129µg/m31,2-Dichloroethane 02/08/22 11:271.980.107<0.107µg/m31,1-Dichloroethene 02/08/22 11:271.980.0955<0.0955µg/m3cis-1,2-Dichloroethene 02/08/22 11:271.980.108<0.108µg/m3trans-1,2-Dichloroethene 02/08/22 11:272.310.205<0.205µg/m31,2-Dichloropropane 02/08/22 11:273.500.623<0.623µg/m31,2-Dichlorotetrafluoroethane Page 1 of 6Date:02/11/2022 12:31 PM Page 31 of 39 Quality Control Data 22-035-0036Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14736QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14730 Associated Lab Samples: 93529, 93530, 93531, 93532, 93533, 93534, 93535 LRB-V14730 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/08/22 11:272.270.178<0.178µg/m3cis-1,3-Dichloropropene 02/08/22 11:272.270.178<0.178µg/m3trans-1,3-Dichloropropene 02/08/22 11:271.800.435<0.435µg/m31,4-Dioxane 02/08/22 11:271.800.136<0.136µg/m3Ethyl Acetate 02/08/22 11:272.170.106<0.106µg/m3Ethylbenzene 02/08/22 11:272.460.128<0.128µg/m34-Ethyltoluene 02/08/22 11:273.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 02/08/22 11:272.050.143<0.143µg/m3Heptane 02/08/22 11:275.330.330<0.330µg/m3Hexachlorobutadiene 02/08/22 11:271.760.0472<0.0472µg/m3n-Hexane 02/08/22 11:272.050.285<0.285µg/m32-Hexanone 02/08/22 11:274.920.139<0.139µg/m3Isopropyl Alchohol 02/08/22 11:271.470.2240.268µg/m3Methyl Ethyl Ketone (MEK) 02/08/22 11:271.800.0336<0.0336µg/m3Methyl tert-butyl ether (MTBE) 02/08/22 11:272.050.121<0.121µg/m34-Methyl-2-Pentanone 02/08/22 11:271.740.489<0.489µg/m3Methylene Chloride 02/08/22 11:272.620.183<0.183µg/m3Naphthalene 02/08/22 11:270.8610.242<0.242µg/m3Propene 02/08/22 11:272.130.124<0.124µg/m3Styrene 02/08/22 11:273.430.104<0.104µg/m31,1,2,2-Tetrachloroethane 02/08/22 11:273.390.181<0.181µg/m3Tetrachloroethene 02/08/22 11:271.470.107<0.107µg/m3Tetrahydrofuran 02/08/22 11:271.880.0901<0.0901µg/m3Toluene 02/08/22 11:273.710.209<0.209µg/m31,2,4-Trichlorobenzene 02/08/22 11:272.730.144<0.144µg/m31,1,1-Trichloroethane 02/08/22 11:272.730.0877<0.0877µg/m31,1,2-Trichloroethane 02/08/22 11:272.150.199<0.199µg/m3Trichloroethene Page 2 of 6Date:02/11/2022 12:31 PM Page 32 of 39 Quality Control Data 22-035-0036Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14736QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14730 Associated Lab Samples: 93529, 93530, 93531, 93532, 93533, 93534, 93535 LRB-V14730 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/08/22 11:272.810.130<0.130µg/m3Trichlorofluoromethane 02/08/22 11:272.460.110<0.110µg/m31,2,4-Trimethylbenzene 02/08/22 11:272.460.236<0.236µg/m31,3,5-Trimethylbenzene 02/08/22 11:271.760.224<0.224µg/m3Vinyl Acetate 02/08/22 11:271.280.127<0.127µg/m3Vinyl Chloride 02/08/22 11:272.170.157<0.157µg/m3o-Xylene 02/08/22 11:275.650.217<0.217µg/m3m,p-Xylene 02/08/22 11:274-Bromofluorobenzene (S)98.0 70-130 LCS-V14730Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 88.210.511.9µg/m3Acetone 70-130 88.114.116.0µg/m3Benzene 70-130 93.424.225.9µg/m3Benzyl Chloride 70-130 90.130.233.5µg/m3Bromodichloromethane 70-130 95.149.251.7µg/m3Bromoform 70-130 96.918.819.4µg/m3Bromomethane 70-130 87.19.6711.1µg/m31,3-Butadiene 70-130 10115.715.6µg/m3Carbon Disulfide 70-130 87.627.631.5µg/m3Carbon Tetrachloride 70-130 93.421.523.0µg/m3Chlorobenzene 70-130 93.139.742.6µg/m3Chlorodibromomethane 70-130 93.912.413.2µg/m3Chloroethane 70-130 91.322.324.4µg/m3Chloroform 70-130 99.010.210.3µg/m3Chloromethane 70-130 86.614.917.2µg/m3Cyclohexane 70-130 Page 3 of 6Date:02/11/2022 12:31 PM Page 33 of 39 Quality Control Data 22-035-0036Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14736QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14730 LCS-V14730Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 95.836.838.4µg/m31,2-Dibromoethane 70-130 94.028.330.1µg/m31,2-Dichlorobenzene 70-130 89.727.030.1µg/m31,3-Dichlorobenzene 70-130 87.026.230.1µg/m31,4-Dichlorobenzene 70-130 90.222.324.7µg/m3Dichlorodifluoromethane 70-130 98.019.820.2µg/m31,1-Dichloroethane 70-130 89.618.120.2µg/m31,2-Dichloroethane 70-130 10320.319.8µg/m31,1-Dichloroethene 70-130 98.919.619.8µg/m3cis-1,2-Dichloroethene 70-130 10120.019.8µg/m3trans-1,2-Dichloroethene 70-130 87.420.223.1µg/m31,2-Dichloropropane 70-130 94.833.235.0µg/m31,2-Dichlorotetrafluoroethane 70-130 90.320.522.7µg/m3cis-1,3-Dichloropropene 70-130 90.320.522.7µg/m3trans-1,3-Dichloropropene 70-130 81.114.618.0µg/m31,4-Dioxane 70-130 95.017.118.0µg/m3Ethyl Acetate 70-130 93.020.221.7µg/m3Ethylbenzene 70-130 93.923.124.6µg/m34-Ethyltoluene 70-130 92.635.538.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130 88.718.220.5µg/m3Heptane 70-130 92.349.253.3µg/m3Hexachlorobutadiene 70-130 94.816.717.6µg/m3n-Hexane 70-130 99.520.420.5µg/m32-Hexanone 70-130 92.611.412.3µg/m3Isopropyl Alchohol 70-130 90.513.414.8µg/m3Methyl Ethyl Ketone (MEK)70-130 87.215.718.0µg/m3Methyl tert-butyl ether (MTBE)70-130 85.317.520.5µg/m34-Methyl-2-Pentanone 70-130 Page 4 of 6Date:02/11/2022 12:31 PM Page 34 of 39 Quality Control Data 22-035-0036Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14736QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14730 LCS-V14730Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 91.315.917.4µg/m3Methylene Chloride 70-130 93.124.426.2µg/m3Naphthalene 70-130 91.07.848.61µg/m3Propene 70-130 87.718.721.3µg/m3Styrene 70-130 97.633.534.3µg/m31,1,2,2-Tetrachloroethane 70-130 89.030.233.9µg/m3Tetrachloroethene 70-130 88.413.014.7µg/m3Tetrahydrofuran 70-130 88.216.618.8µg/m3Toluene 70-130 10137.537.1µg/m31,2,4-Trichlorobenzene 70-130 85.723.427.3µg/m31,1,1-Trichloroethane 70-130 93.025.427.3µg/m31,1,2-Trichloroethane 70-130 84.722.826.9µg/m3Trichloroethene 70-130 94.326.528.1µg/m3Trichlorofluoromethane 70-130 94.723.324.6µg/m31,2,4-Trimethylbenzene 70-130 97.123.924.6µg/m31,3,5-Trimethylbenzene 70-130 94.316.617.6µg/m3Vinyl Acetate 70-130 92.911.912.8µg/m3Vinyl Chloride 70-130 96.721.021.7µg/m3o-Xylene 70-130 94.741.143.4µg/m3m,p-Xylene 70-130 1014-Bromofluorobenzene (S)70-130 Page 5 of 6Date:02/11/2022 12:31 PM Page 35 of 39 Quality Control Data 22-035-0036Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14855QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14851 Associated Lab Samples: 93529, 93530, 93532, 93533, 93534, 93535 LRB-V14851 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/04/22 22:410.8610.242<0.242µg/m3Propene 02/04/22 22:411.880.0901<0.0901µg/m3Toluene 02/04/22 22:412.810.130<0.130µg/m3Trichlorofluoromethane 02/04/22 22:414-Bromofluorobenzene (S)98.0 70-130 LCS-V14851Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 78.36.758.61µg/m3Propene 70-130 82.415.518.8µg/m3Toluene 70-130 82.223.128.1µg/m3Trichlorofluoromethane 70-130 99.14-Bromofluorobenzene (S)70-130 Page 6 of 6Date:02/11/2022 12:31 PM Page 36 of 39 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:22-035-0036 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT-15 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 2 Signature:Zoe S. Vigilant Date & Time:02/04/2022 15:25:22 Special precautions or instructions included? Comments: Page 37 of 39 Page 38 of 39 Page 39 of 39   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.   2/11/2022 Hart & Hickman (Charlotte) Shannon Cottrill 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 22-035-0037 Client Project Description: LSG-001 Dear Shannon Cottrill: Waypoint Analytical, LLC (Charlotte) received sample(s) on 2/4/2022 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 27 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 00016/22-035-0037 Page 2 of 27 Report Number: Sample Summary Table Client Project Description: 22-035-0037 LSG-001 Lab No Client Sample ID Matrix Date Collected Date Received 02/04/2022 11:32Air 93536 VMP-14 02/04/2022 14:30 02/04/2022 10:59Air 93537 VMP-13 02/04/2022 14:30 02/04/2022 10:25Air 93538 VMP-12 02/04/2022 14:30 02/04/2022 09:44Air 93539 VMP-11 02/04/2022 14:30 Page 3 of 27 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-035-0037 Report Limit Project:LSG-001 V 93536VMP-14 33.2 02/09/2022 12:13TO-15 Acetone µg/m3 0.202 5.34 02/09/2022 12:13TO-15 Benzene µg/m3 0.0733 3.79 02/09/2022 12:13TO-15 Bromodichloromethane µg/m3 0.150 2.72 02/09/2022 12:13TO-15 1,3-Butadiene µg/m3 0.328 JB3.73 02/09/2022 12:13TO-15 Carbon Disulfide µg/m3 0.0608 64.6 02/09/2022 12:13TO-15 Chloroform µg/m3 0.0864 8.43 02/09/2022 12:13TO-15 Cyclohexane µg/m3 0.161 4.12 02/09/2022 12:13TO-15 Dichlorodifluoromethane µg/m3 0.134 25.9 02/09/2022 12:13TO-15 Ethylbenzene µg/m3 0.106 7.16 02/09/2022 12:13TO-15 4-Ethyltoluene µg/m3 0.128 J2.15 02/09/2022 12:13TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561 40.1 02/09/2022 12:13TO-15 Heptane µg/m3 0.143 2.44 02/09/2022 12:13TO-15 n-Hexane µg/m3 0.0472 19.8 02/09/2022 12:13TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J1.38 02/09/2022 12:13TO-15 4-Methyl-2-Pentanone µg/m3 0.121 J1.26 02/09/2022 12:13TO-15 Methylene Chloride µg/m3 0.489 4.82 02/09/2022 12:13TO-15 Naphthalene µg/m3 0.183 13.9 02/09/2022 12:13TO-15 Propene µg/m3 0.242 4.98 02/09/2022 12:13TO-15 Styrene µg/m3 0.124 71.9 02/09/2022 12:13TO-15 Tetrachloroethene µg/m3 0.181 1.61 02/09/2022 12:13TO-15 Tetrahydrofuran µg/m3 0.107 180 02/09/2022 12:13TO-15 Toluene µg/m3 0.0901 J2.47 02/09/2022 12:13TO-15 1,1,1-Trichloroethane µg/m3 0.144 195 02/09/2022 12:13TO-15 Trichlorofluoromethane µg/m3 0.130 19.2 02/09/2022 12:13TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 6.01 02/09/2022 12:13TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 28.1 02/09/2022 12:13TO-15 o-Xylene µg/m3 0.157 86.1 02/09/2022 12:13TO-15 m,p-Xylene µg/m3 0.217 114 02/09/2022 12:13TO-15 Xylene (Total)µg/m3 0.157 V 93537VMP-13 25.4 02/09/2022 13:05TO-15 Acetone µg/m3 0.202 J1.37 02/09/2022 13:05TO-15 Benzene µg/m3 0.0733 J2.28 02/09/2022 13:05TO-15 Bromodichloromethane µg/m3 0.150 1.78 02/09/2022 13:05TO-15 1,3-Butadiene µg/m3 0.328 JB1.74 02/09/2022 13:05TO-15 Carbon Disulfide µg/m3 0.0608 62.3 02/09/2022 13:05TO-15 Chloroform µg/m3 0.0864 Page 4 of 27 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-035-0037 Report Limit Project:LSG-001 V 93537VMP-13 J0.357 02/09/2022 13:05TO-15 Chloromethane µg/m3 0.0673 8.24 02/09/2022 13:05TO-15 Cyclohexane µg/m3 0.161 3.61 02/09/2022 13:05TO-15 Dichlorodifluoromethane µg/m3 0.134 6.19 02/09/2022 13:05TO-15 Ethylbenzene µg/m3 0.106 J2.06 02/09/2022 13:05TO-15 4-Ethyltoluene µg/m3 0.128 J3.17 02/09/2022 13:05TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561 8.38 02/09/2022 13:05TO-15 Heptane µg/m3 0.143 2.09 02/09/2022 13:05TO-15 n-Hexane µg/m3 0.0472 6.42 02/09/2022 13:05TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J0.643 02/09/2022 13:05TO-15 4-Methyl-2-Pentanone µg/m3 0.121 1.80 02/09/2022 13:05TO-15 Methylene Chloride µg/m3 0.489 4.48 02/09/2022 13:05TO-15 Naphthalene µg/m3 0.183 12.7 02/09/2022 13:05TO-15 Propene µg/m3 0.242 4.46 02/09/2022 13:05TO-15 Styrene µg/m3 0.124 39.7 02/09/2022 13:05TO-15 Tetrachloroethene µg/m3 0.181 32.7 02/09/2022 13:05TO-15 Toluene µg/m3 0.0901 J1.60 02/09/2022 13:05TO-15 1,1,1-Trichloroethane µg/m3 0.144 479 02/05/2022 10:13TO-15 Trichlorofluoromethane µg/m3 2.60 6.51 02/09/2022 13:05TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J1.64 02/09/2022 13:05TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 6.38 02/09/2022 13:05TO-15 o-Xylene µg/m3 0.157 20.1 02/09/2022 13:05TO-15 m,p-Xylene µg/m3 0.217 26.5 02/09/2022 13:05TO-15 Xylene (Total)µg/m3 0.157 V 93538VMP-12 70.4 02/09/2022 13:57TO-15 Acetone µg/m3 0.202 15.7 02/09/2022 13:57TO-15 Benzene µg/m3 0.0733 42.0 02/09/2022 13:57TO-15 1,3-Butadiene µg/m3 0.328 19.2 02/09/2022 13:57TO-15 Carbon Disulfide µg/m3 0.0608 8.96 02/09/2022 13:57TO-15 Chloroform µg/m3 0.0864 15.8 02/09/2022 13:57TO-15 Cyclohexane µg/m3 0.161 14.9 02/09/2022 13:57TO-15 Ethylbenzene µg/m3 0.106 3.85 02/09/2022 13:57TO-15 4-Ethyltoluene µg/m3 0.128 J3.07 02/09/2022 13:57TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561 159 02/09/2022 13:57TO-15 Heptane µg/m3 0.143 40.4 02/09/2022 13:57TO-15 n-Hexane µg/m3 0.0472 16.0 02/09/2022 13:57TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 Page 5 of 27 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-035-0037 Report Limit Project:LSG-001 V 93538VMP-12 2.28 02/09/2022 13:57TO-15 4-Methyl-2-Pentanone µg/m3 0.121 4.36 02/09/2022 13:57TO-15 Naphthalene µg/m3 0.183 755 02/05/2022 10:51TO-15 Propene µg/m3 4.84 10.9 02/09/2022 13:57TO-15 Tetrachloroethene µg/m3 0.181 153 02/09/2022 13:57TO-15 Toluene µg/m3 0.0901 436 02/05/2022 10:51TO-15 Trichlorofluoromethane µg/m3 2.60 11.3 02/09/2022 13:57TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 3.55 02/09/2022 13:57TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 15.4 02/09/2022 13:57TO-15 o-Xylene µg/m3 0.157 47.6 02/09/2022 13:57TO-15 m,p-Xylene µg/m3 0.217 63.0 02/09/2022 13:57TO-15 Xylene (Total)µg/m3 0.157 V 93539VMP-11 61.6 02/09/2022 14:49TO-15 Acetone µg/m3 0.202 22.6 02/09/2022 14:49TO-15 Benzene µg/m3 0.0733 7.35 02/09/2022 14:49TO-15 1,3-Butadiene µg/m3 0.328 17.0 02/09/2022 14:49TO-15 Carbon Disulfide µg/m3 0.0608 175 02/09/2022 14:49TO-15 Chloroform µg/m3 0.0864 13.2 02/09/2022 14:49TO-15 Cyclohexane µg/m3 0.161 4.91 02/09/2022 14:49TO-15 Dichlorodifluoromethane µg/m3 0.134 47.6 02/09/2022 14:49TO-15 Ethylbenzene µg/m3 0.106 13.4 02/09/2022 14:49TO-15 4-Ethyltoluene µg/m3 0.128 5.43 02/09/2022 14:49TO-15 1,1,2-Trichloro-1,2,2-trifluoroethane µg/m3 0.561 130 02/09/2022 14:49TO-15 Heptane µg/m3 0.143 19.2 02/09/2022 14:49TO-15 n-Hexane µg/m3 0.0472 7.57 02/09/2022 14:49TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 3.36 02/09/2022 14:49TO-15 4-Methyl-2-Pentanone µg/m3 0.121 4.60 02/09/2022 14:49TO-15 Naphthalene µg/m3 0.183 42.7 02/09/2022 14:49TO-15 Propene µg/m3 0.242 4.78 02/09/2022 14:49TO-15 Styrene µg/m3 0.124 15.5 02/09/2022 14:49TO-15 Tetrachloroethene µg/m3 0.181 J1.20 02/09/2022 14:49TO-15 Tetrahydrofuran µg/m3 0.107 209 02/05/2022 11:30TO-15 Toluene µg/m3 1.80 4.26 02/09/2022 14:49TO-15 1,1,1-Trichloroethane µg/m3 0.144 768 02/05/2022 11:30TO-15 Trichlorofluoromethane µg/m3 2.60 38.8 02/09/2022 14:49TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 12.2 02/09/2022 14:49TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 Page 6 of 27 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 22-035-0037 Report Limit Project:LSG-001 V 93539VMP-11 52.6 02/09/2022 14:49TO-15 o-Xylene µg/m3 0.157 160 02/09/2022 14:49TO-15 m,p-Xylene µg/m3 0.217 213 02/09/2022 14:49TO-15 Xylene (Total)µg/m3 0.157 Page 7 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-14 93536 Matrix: 2/4/2022 11:32 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):V14778 02/09/22 09:00 33.2 µg/m3 0.202 4.75Acetone 1 02/09/22 12:13 V14783ENM 5.34 µg/m3 0.0733 1.60Benzene 1 02/09/22 12:13 V14783ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/09/22 12:13 V14783ENM 3.79 µg/m3 0.150 3.35Bromodichloromethane 1 02/09/22 12:13 V14783ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/09/22 12:13 V14783ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/09/22 12:13 V14783ENM 2.72 µg/m3 0.328 1.111,3-Butadiene 1 02/09/22 12:13 V14783ENM 3.73 JB µg/m3 0.0608 6.23Carbon Disulfide 1 02/09/22 12:13 V14783ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/09/22 12:13 V14783ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/09/22 12:13 V14783ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/09/22 12:13 V14783ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/09/22 12:13 V14783ENM 64.6 µg/m3 0.0864 2.44Chloroform 1 02/09/22 12:13 V14783ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/09/22 12:13 V14783ENM 8.43 µg/m3 0.161 3.44Cyclohexane 1 02/09/22 12:13 V14783ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/09/22 12:13 V14783ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/09/22 12:13 V14783ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/09/22 12:13 V14783ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/09/22 12:13 V14783ENM 4.12 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/09/22 12:13 V14783ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/09/22 12:13 V14783ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/09/22 12:13 V14783ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 8 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-14 93536 Matrix: 2/4/2022 11:32 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):V14778 02/09/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/09/22 12:13 V14783ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/09/22 12:13 V14783ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/09/22 12:13 V14783ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/09/22 12:13 V14783ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/09/22 12:13 V14783ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/09/22 12:13 V14783ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/09/22 12:13 V14783ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/09/22 12:13 V14783ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/09/22 12:13 V14783ENM 25.9 µg/m3 0.106 2.17Ethylbenzene 1 02/09/22 12:13 V14783ENM 7.16 µg/m3 0.128 2.464-Ethyltoluene 1 02/09/22 12:13 V14783ENM 2.15 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/09/22 12:13 V14783ENM 40.1 µg/m3 0.143 2.05Heptane 1 02/09/22 12:13 V14783ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/09/22 12:13 V14783ENM 2.44 µg/m3 0.0472 1.76n-Hexane 1 02/09/22 12:13 V14783ENM <0.285 µg/m3 0.285 2.05 2-Hexanone 1 02/09/22 12:13 V14783ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/09/22 12:13 V14783ENM 19.8 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/09/22 12:13 V14783ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/09/22 12:13 V14783ENM 1.38 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/09/22 12:13 V14783ENM 1.26 J µg/m3 0.489 1.74Methylene Chloride 1 02/09/22 12:13 V14783ENM 4.82 µg/m3 0.183 2.62Naphthalene 1 02/09/22 12:13 V14783ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 9 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-14 93536 Matrix: 2/4/2022 11:32 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):V14778 02/09/22 09:00 13.9 µg/m3 0.242 0.861Propene 1 02/09/22 12:13 V14783ENM 4.98 µg/m3 0.124 2.13Styrene 1 02/09/22 12:13 V14783ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/09/22 12:13 V14783ENM 71.9 µg/m3 0.181 3.39Tetrachloroethene 1 02/09/22 12:13 V14783ENM 1.61 µg/m3 0.107 1.47Tetrahydrofuran 1 02/09/22 12:13 V14783ENM 180 µg/m3 0.0901 1.88Toluene 1 02/09/22 12:13 V14783ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/09/22 12:13 V14783ENM 2.47 J µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/09/22 12:13 V14783ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/09/22 12:13 V14783ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/09/22 12:13 V14783ENM 195 µg/m3 0.130 2.81Trichlorofluoromethane 1 02/09/22 12:13 V14783ENM 19.2 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/09/22 12:13 V14783ENM 6.01 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/09/22 12:13 V14783ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/09/22 12:13 V14783ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/09/22 12:13 V14783ENM 28.1 µg/m3 0.157 2.17 o-Xylene 1 02/09/22 12:13 V14783ENM 86.1 µg/m3 0.217 5.65m,p-Xylene 1 02/09/22 12:13 V14783ENM 114 µg/m3 0.157 2.17Xylene (Total)1 02/09/22 12:13 V14783 Surrogate: 4-Bromofluorobenzene 95.0 Limits: 70-130%02/09/22 12:131 ENM V14783 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 10 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-13 93537 Matrix: 2/4/2022 10:59 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):V14778 02/09/22 09:00 V14851 02/04/22 09:00 25.4 µg/m3 0.202 4.75Acetone 1 02/09/22 13:05 V14783ENM 1.37 J µg/m3 0.0733 1.60Benzene 1 02/09/22 13:05 V14783ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/09/22 13:05 V14783ENM 2.28 J µg/m3 0.150 3.35Bromodichloromethane 1 02/09/22 13:05 V14783ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/09/22 13:05 V14783ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/09/22 13:05 V14783ENM 1.78 µg/m3 0.328 1.111,3-Butadiene 1 02/09/22 13:05 V14783ENM 1.74 JB µg/m3 0.0608 6.23Carbon Disulfide 1 02/09/22 13:05 V14783ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/09/22 13:05 V14783ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/09/22 13:05 V14783ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/09/22 13:05 V14783ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/09/22 13:05 V14783ENM 62.3 µg/m3 0.0864 2.44Chloroform 1 02/09/22 13:05 V14783ENM 0.357 J µg/m3 0.0673 1.03Chloromethane 1 02/09/22 13:05 V14783ENM 8.24 µg/m3 0.161 3.44Cyclohexane 1 02/09/22 13:05 V14783ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/09/22 13:05 V14783ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/09/22 13:05 V14783ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/09/22 13:05 V14783ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/09/22 13:05 V14783ENM 3.61 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/09/22 13:05 V14783ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/09/22 13:05 V14783ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/09/22 13:05 V14783ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 11 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-13 93537 Matrix: 2/4/2022 10:59 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):V14778 02/09/22 09:00 V14851 02/04/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/09/22 13:05 V14783ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/09/22 13:05 V14783ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/09/22 13:05 V14783ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/09/22 13:05 V14783ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/09/22 13:05 V14783ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/09/22 13:05 V14783ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/09/22 13:05 V14783ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/09/22 13:05 V14783ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/09/22 13:05 V14783ENM 6.19 µg/m3 0.106 2.17Ethylbenzene 1 02/09/22 13:05 V14783ENM 2.06 J µg/m3 0.128 2.464-Ethyltoluene 1 02/09/22 13:05 V14783ENM 3.17 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/09/22 13:05 V14783ENM 8.38 µg/m3 0.143 2.05Heptane 1 02/09/22 13:05 V14783ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/09/22 13:05 V14783ENM 2.09 µg/m3 0.0472 1.76n-Hexane 1 02/09/22 13:05 V14783ENM <0.285 µg/m3 0.285 2.05 2-Hexanone 1 02/09/22 13:05 V14783ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/09/22 13:05 V14783ENM 6.42 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/09/22 13:05 V14783ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/09/22 13:05 V14783ENM 0.643 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/09/22 13:05 V14783ENM 1.80 µg/m3 0.489 1.74Methylene Chloride 1 02/09/22 13:05 V14783ENM 4.48 µg/m3 0.183 2.62Naphthalene 1 02/09/22 13:05 V14783ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 12 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-13 93537 Matrix: 2/4/2022 10:59 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):V14778 02/09/22 09:00 V14851 02/04/22 09:00 12.7 µg/m3 0.242 0.861Propene 1 02/09/22 13:05 V14783ENM 4.46 µg/m3 0.124 2.13Styrene 1 02/09/22 13:05 V14783ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/09/22 13:05 V14783ENM 39.7 µg/m3 0.181 3.39Tetrachloroethene 1 02/09/22 13:05 V14783ENM <0.107 µg/m3 0.107 1.47Tetrahydrofuran 1 02/09/22 13:05 V14783ENM 32.7 µg/m3 0.0901 1.88Toluene 1 02/09/22 13:05 V14783ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/09/22 13:05 V14783ENM 1.60 J µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/09/22 13:05 V14783ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/09/22 13:05 V14783ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/09/22 13:05 V14783ENM 479 µg/m3 2.60 56.2Trichlorofluoromethane 20 02/05/22 10:13 V14855ENM 6.51 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/09/22 13:05 V14783ENM 1.64 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/09/22 13:05 V14783ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/09/22 13:05 V14783ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/09/22 13:05 V14783ENM 6.38 µg/m3 0.157 2.17 o-Xylene 1 02/09/22 13:05 V14783ENM 20.1 µg/m3 0.217 5.65m,p-Xylene 1 02/09/22 13:05 V14783ENM 26.5 µg/m3 0.157 2.17Xylene (Total)1 02/09/22 13:05 V14783 Surrogate: 4-Bromofluorobenzene 96.9 Limits: 70-130%02/09/22 13:051 ENM V14783 Surrogate: 4-Bromofluorobenzene 95.0 Limits: 70-130%02/05/22 10:1320 ENM V14855 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 13 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-12 93538 Matrix: 2/4/2022 10:25 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):V14778 02/09/22 09:00 V14851 02/04/22 09:00 70.4 µg/m3 0.202 4.75Acetone 1 02/09/22 13:57 V14783ENM 15.7 µg/m3 0.0733 1.60Benzene 1 02/09/22 13:57 V14783ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/09/22 13:57 V14783ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/09/22 13:57 V14783ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/09/22 13:57 V14783ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/09/22 13:57 V14783ENM 42.0 µg/m3 0.328 1.111,3-Butadiene 1 02/09/22 13:57 V14783ENM 19.2 µg/m3 0.0608 6.23Carbon Disulfide 1 02/09/22 13:57 V14783ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/09/22 13:57 V14783ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/09/22 13:57 V14783ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/09/22 13:57 V14783ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/09/22 13:57 V14783ENM 8.96 µg/m3 0.0864 2.44Chloroform 1 02/09/22 13:57 V14783ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/09/22 13:57 V14783ENM 15.8 µg/m3 0.161 3.44Cyclohexane 1 02/09/22 13:57 V14783ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/09/22 13:57 V14783ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/09/22 13:57 V14783ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/09/22 13:57 V14783ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/09/22 13:57 V14783ENM <0.134 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/09/22 13:57 V14783ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/09/22 13:57 V14783ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/09/22 13:57 V14783ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 14 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-12 93538 Matrix: 2/4/2022 10:25 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):V14778 02/09/22 09:00 V14851 02/04/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/09/22 13:57 V14783ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/09/22 13:57 V14783ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/09/22 13:57 V14783ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/09/22 13:57 V14783ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/09/22 13:57 V14783ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/09/22 13:57 V14783ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/09/22 13:57 V14783ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/09/22 13:57 V14783ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/09/22 13:57 V14783ENM 14.9 µg/m3 0.106 2.17Ethylbenzene 1 02/09/22 13:57 V14783ENM 3.85 µg/m3 0.128 2.464-Ethyltoluene 1 02/09/22 13:57 V14783ENM 3.07 J µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/09/22 13:57 V14783ENM 159 µg/m3 0.143 2.05Heptane 1 02/09/22 13:57 V14783ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/09/22 13:57 V14783ENM 40.4 µg/m3 0.0472 1.76n-Hexane 1 02/09/22 13:57 V14783ENM <0.285 µg/m3 0.285 2.05 2-Hexanone 1 02/09/22 13:57 V14783ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/09/22 13:57 V14783ENM 16.0 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/09/22 13:57 V14783ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/09/22 13:57 V14783ENM 2.28 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/09/22 13:57 V14783ENM <0.489 µg/m3 0.489 1.74Methylene Chloride 1 02/09/22 13:57 V14783ENM 4.36 µg/m3 0.183 2.62Naphthalene 1 02/09/22 13:57 V14783ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 15 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-12 93538 Matrix: 2/4/2022 10:25 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):V14778 02/09/22 09:00 V14851 02/04/22 09:00 755 µg/m3 4.84 17.2Propene 20 02/05/22 10:51 V14855ENM <0.124 µg/m3 0.124 2.13Styrene 1 02/09/22 13:57 V14783ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/09/22 13:57 V14783ENM 10.9 µg/m3 0.181 3.39Tetrachloroethene 1 02/09/22 13:57 V14783ENM <0.107 µg/m3 0.107 1.47Tetrahydrofuran 1 02/09/22 13:57 V14783ENM 153 µg/m3 0.0901 1.88Toluene 1 02/09/22 13:57 V14783ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/09/22 13:57 V14783ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/09/22 13:57 V14783ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/09/22 13:57 V14783ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/09/22 13:57 V14783ENM 436 µg/m3 2.60 56.2Trichlorofluoromethane 20 02/05/22 10:51 V14855ENM 11.3 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/09/22 13:57 V14783ENM 3.55 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/09/22 13:57 V14783ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/09/22 13:57 V14783ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/09/22 13:57 V14783ENM 15.4 µg/m3 0.157 2.17 o-Xylene 1 02/09/22 13:57 V14783ENM 47.6 µg/m3 0.217 5.65m,p-Xylene 1 02/09/22 13:57 V14783ENM 63.0 µg/m3 0.157 2.17Xylene (Total)1 02/09/22 13:57 V14783 Surrogate: 4-Bromofluorobenzene 94.4 Limits: 70-130%02/09/22 13:571 ENM V14783 Surrogate: 4-Bromofluorobenzene 94.4 Limits: 70-130%02/05/22 10:5120 ENM V14855 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 16 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-11 93539 Matrix: 2/4/2022 9:44 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):V14778 02/09/22 09:00 V14851 02/04/22 09:00 61.6 µg/m3 0.202 4.75Acetone 1 02/09/22 14:49 V14783ENM 22.6 µg/m3 0.0733 1.60Benzene 1 02/09/22 14:49 V14783ENM <0.148 µg/m3 0.148 10.4Benzyl Chloride 1 02/09/22 14:49 V14783ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/09/22 14:49 V14783ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/09/22 14:49 V14783ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/09/22 14:49 V14783ENM 7.35 µg/m3 0.328 1.111,3-Butadiene 1 02/09/22 14:49 V14783ENM 17.0 µg/m3 0.0608 6.23Carbon Disulfide 1 02/09/22 14:49 V14783ENM <0.155 µg/m3 0.155 3.15 Carbon Tetrachloride 1 02/09/22 14:49 V14783ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/09/22 14:49 V14783ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/09/22 14:49 V14783ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/09/22 14:49 V14783ENM 175 µg/m3 0.0864 2.44Chloroform 1 02/09/22 14:49 V14783ENM <0.0673 µg/m3 0.0673 1.03Chloromethane 1 02/09/22 14:49 V14783ENM 13.2 µg/m3 0.161 3.44Cyclohexane 1 02/09/22 14:49 V14783ENM <0.151 µg/m3 0.151 3.84 1,2-Dibromoethane 1 02/09/22 14:49 V14783ENM <0.0963 µg/m3 0.0963 3.011,2-Dichlorobenzene 1 02/09/22 14:49 V14783ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/09/22 14:49 V14783ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/09/22 14:49 V14783ENM 4.91 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/09/22 14:49 V14783ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/09/22 14:49 V14783ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/09/22 14:49 V14783ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 17 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-11 93539 Matrix: 2/4/2022 9:44 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):V14778 02/09/22 09:00 V14851 02/04/22 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/09/22 14:49 V14783ENM <0.0955 µg/m3 0.0955 1.98cis-1,2-Dichloroethene 1 02/09/22 14:49 V14783ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/09/22 14:49 V14783ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/09/22 14:49 V14783ENM <0.623 µg/m3 0.623 3.501,2-Dichlorotetrafluoroethane 1 02/09/22 14:49 V14783ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/09/22 14:49 V14783ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/09/22 14:49 V14783ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/09/22 14:49 V14783ENM <0.136 µg/m3 0.136 1.80 Ethyl Acetate 1 02/09/22 14:49 V14783ENM 47.6 µg/m3 0.106 2.17Ethylbenzene 1 02/09/22 14:49 V14783ENM 13.4 µg/m3 0.128 2.464-Ethyltoluene 1 02/09/22 14:49 V14783ENM 5.43 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/09/22 14:49 V14783ENM 130 µg/m3 0.143 2.05Heptane 1 02/09/22 14:49 V14783ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/09/22 14:49 V14783ENM 19.2 µg/m3 0.0472 1.76n-Hexane 1 02/09/22 14:49 V14783ENM <0.285 µg/m3 0.285 2.05 2-Hexanone 1 02/09/22 14:49 V14783ENM <0.139 µg/m3 0.139 4.92Isopropyl Alchohol 1 02/09/22 14:49 V14783ENM 7.57 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/09/22 14:49 V14783ENM <0.0336 µg/m3 0.0336 1.80Methyl tert-butyl ether (MTBE)1 02/09/22 14:49 V14783ENM 3.36 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/09/22 14:49 V14783ENM <0.489 µg/m3 0.489 1.74Methylene Chloride 1 02/09/22 14:49 V14783ENM 4.60 µg/m3 0.183 2.62Naphthalene 1 02/09/22 14:49 V14783ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 18 of 27 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 22-035-0037 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 02/04/2022 LSG-001 Report Date : 02/11/2022 Sample ID : Lab No : Sampled:VMP-11 93539 Matrix: 2/4/2022 9:44 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):V14778 02/09/22 09:00 V14851 02/04/22 09:00 42.7 µg/m3 0.242 0.861Propene 1 02/09/22 14:49 V14783ENM 4.78 µg/m3 0.124 2.13Styrene 1 02/09/22 14:49 V14783ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/09/22 14:49 V14783ENM 15.5 µg/m3 0.181 3.39Tetrachloroethene 1 02/09/22 14:49 V14783ENM 1.20 J µg/m3 0.107 1.47Tetrahydrofuran 1 02/09/22 14:49 V14783ENM 209 µg/m3 1.80 37.7Toluene 20 02/05/22 11:30 V14855ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/09/22 14:49 V14783ENM 4.26 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/09/22 14:49 V14783ENM <0.0877 µg/m3 0.0877 2.73 1,1,2-Trichloroethane 1 02/09/22 14:49 V14783ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 02/09/22 14:49 V14783ENM 768 µg/m3 2.60 56.2Trichlorofluoromethane 20 02/05/22 11:30 V14855ENM 38.8 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/09/22 14:49 V14783ENM 12.2 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/09/22 14:49 V14783ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/09/22 14:49 V14783ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/09/22 14:49 V14783ENM 52.6 µg/m3 0.157 2.17 o-Xylene 1 02/09/22 14:49 V14783ENM 160 µg/m3 0.217 5.65m,p-Xylene 1 02/09/22 14:49 V14783ENM 213 µg/m3 0.157 2.17Xylene (Total)1 02/09/22 14:49 V14783 Surrogate: 4-Bromofluorobenzene 93.6 Limits: 70-130%02/09/22 14:491 ENM V14783 Surrogate: 4-Bromofluorobenzene 91.9 Limits: 70-130%02/05/22 11:3020 ENM V14855 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 19 of 27 Quality Control Data 22-035-0037Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14783QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14778 Associated Lab Samples: 93536, 93537, 93538, 93539 LRB-V14778 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/09/22 11:024.750.2020.561µg/m3Acetone 02/09/22 11:021.600.0733<0.0733µg/m3Benzene 02/09/22 11:0210.40.148<0.148µg/m3Benzyl Chloride 02/09/22 11:023.350.150<0.150µg/m3Bromodichloromethane 02/09/22 11:025.170.153<0.153µg/m3Bromoform 02/09/22 11:021.940.115<0.115µg/m3Bromomethane 02/09/22 11:021.110.328<0.328µg/m31,3-Butadiene 02/09/22 11:026.230.06081.36µg/m3Carbon Disulfide 02/09/22 11:023.150.155<0.155µg/m3Carbon Tetrachloride 02/09/22 11:022.300.107<0.107µg/m3Chlorobenzene 02/09/22 11:024.260.208<0.208µg/m3Chlorodibromomethane 02/09/22 11:021.320.164<0.164µg/m3Chloroethane 02/09/22 11:022.440.0864<0.0864µg/m3Chloroform 02/09/22 11:021.030.0673<0.0673µg/m3Chloromethane 02/09/22 11:023.440.161<0.161µg/m3Cyclohexane 02/09/22 11:023.840.151<0.151µg/m31,2-Dibromoethane 02/09/22 11:023.010.0963<0.0963µg/m31,2-Dichlorobenzene 02/09/22 11:0212.00.174<0.174µg/m31,3-Dichlorobenzene 02/09/22 11:023.010.186<0.186µg/m31,4-Dichlorobenzene 02/09/22 11:022.470.134<0.134µg/m3Dichlorodifluoromethane 02/09/22 11:022.020.101<0.101µg/m31,1-Dichloroethane 02/09/22 11:022.020.129<0.129µg/m31,2-Dichloroethane 02/09/22 11:021.980.107<0.107µg/m31,1-Dichloroethene 02/09/22 11:021.980.0955<0.0955µg/m3cis-1,2-Dichloroethene 02/09/22 11:021.980.108<0.108µg/m3trans-1,2-Dichloroethene 02/09/22 11:022.310.205<0.205µg/m31,2-Dichloropropane 02/09/22 11:023.500.623<0.623µg/m31,2-Dichlorotetrafluoroethane Page 1 of 6Date:02/11/2022 12:31 PM Page 20 of 27 Quality Control Data 22-035-0037Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14783QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14778 Associated Lab Samples: 93536, 93537, 93538, 93539 LRB-V14778 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/09/22 11:022.270.178<0.178µg/m3cis-1,3-Dichloropropene 02/09/22 11:022.270.178<0.178µg/m3trans-1,3-Dichloropropene 02/09/22 11:021.800.435<0.435µg/m31,4-Dioxane 02/09/22 11:021.800.136<0.136µg/m3Ethyl Acetate 02/09/22 11:022.170.106<0.106µg/m3Ethylbenzene 02/09/22 11:022.460.128<0.128µg/m34-Ethyltoluene 02/09/22 11:023.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 02/09/22 11:022.050.143<0.143µg/m3Heptane 02/09/22 11:025.330.330<0.330µg/m3Hexachlorobutadiene 02/09/22 11:021.760.0472<0.0472µg/m3n-Hexane 02/09/22 11:022.050.285<0.285µg/m32-Hexanone 02/09/22 11:024.920.139<0.139µg/m3Isopropyl Alchohol 02/09/22 11:021.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK) 02/09/22 11:021.800.0336<0.0336µg/m3Methyl tert-butyl ether (MTBE) 02/09/22 11:022.050.121<0.121µg/m34-Methyl-2-Pentanone 02/09/22 11:021.740.489<0.489µg/m3Methylene Chloride 02/09/22 11:022.620.183<0.183µg/m3Naphthalene 02/09/22 11:020.8610.242<0.242µg/m3Propene 02/09/22 11:022.130.124<0.124µg/m3Styrene 02/09/22 11:023.430.104<0.104µg/m31,1,2,2-Tetrachloroethane 02/09/22 11:023.390.181<0.181µg/m3Tetrachloroethene 02/09/22 11:021.470.107<0.107µg/m3Tetrahydrofuran 02/09/22 11:021.880.0901<0.0901µg/m3Toluene 02/09/22 11:023.710.209<0.209µg/m31,2,4-Trichlorobenzene 02/09/22 11:022.730.144<0.144µg/m31,1,1-Trichloroethane 02/09/22 11:022.730.0877<0.0877µg/m31,1,2-Trichloroethane 02/09/22 11:022.150.199<0.199µg/m3Trichloroethene Page 2 of 6Date:02/11/2022 12:31 PM Page 21 of 27 Quality Control Data 22-035-0037Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14783QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14778 Associated Lab Samples: 93536, 93537, 93538, 93539 LRB-V14778 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/09/22 11:022.810.130<0.130µg/m3Trichlorofluoromethane 02/09/22 11:022.460.110<0.110µg/m31,2,4-Trimethylbenzene 02/09/22 11:022.460.236<0.236µg/m31,3,5-Trimethylbenzene 02/09/22 11:021.760.224<0.224µg/m3Vinyl Acetate 02/09/22 11:021.280.127<0.127µg/m3Vinyl Chloride 02/09/22 11:022.170.157<0.157µg/m3o-Xylene 02/09/22 11:025.650.217<0.217µg/m3m,p-Xylene 02/09/22 11:024-Bromofluorobenzene (S)94.6 70-130 LCS-V14778Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 89.010.611.9µg/m3Acetone 70-130 95.615.316.0µg/m3Benzene 70-130 93.424.225.9µg/m3Benzyl Chloride 70-130 94.931.833.5µg/m3Bromodichloromethane 70-130 94.548.951.7µg/m3Bromoform 70-130 96.318.719.4µg/m3Bromomethane 70-130 90.910.111.1µg/m31,3-Butadiene 70-130 10115.815.6µg/m3Carbon Disulfide 70-130 93.629.531.5µg/m3Carbon Tetrachloride 70-130 94.721.823.0µg/m3Chlorobenzene 70-130 92.439.442.6µg/m3Chlorodibromomethane 70-130 94.612.513.2µg/m3Chloroethane 70-130 97.923.924.4µg/m3Chloroform 70-130 98.010.110.3µg/m3Chloromethane 70-130 95.916.517.2µg/m3Cyclohexane 70-130 Page 3 of 6Date:02/11/2022 12:31 PM Page 22 of 27 Quality Control Data 22-035-0037Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14783QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14778 LCS-V14778Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 92.735.638.4µg/m31,2-Dibromoethane 70-130 93.328.130.1µg/m31,2-Dichlorobenzene 70-130 87.326.330.1µg/m31,3-Dichlorobenzene 70-130 85.725.830.1µg/m31,4-Dichlorobenzene 70-130 93.123.024.7µg/m3Dichlorodifluoromethane 70-130 99.520.120.2µg/m31,1-Dichloroethane 70-130 95.519.320.2µg/m31,2-Dichloroethane 70-130 10220.219.8µg/m31,1-Dichloroethene 70-130 10420.519.8µg/m3cis-1,2-Dichloroethene 70-130 10520.819.8µg/m3trans-1,2-Dichloroethene 70-130 90.921.023.1µg/m31,2-Dichloropropane 70-130 94.833.235.0µg/m31,2-Dichlorotetrafluoroethane 70-130 98.622.422.7µg/m3cis-1,3-Dichloropropene 70-130 98.622.422.7µg/m3trans-1,3-Dichloropropene 70-130 88.315.918.0µg/m31,4-Dioxane 70-130 99.417.918.0µg/m3Ethyl Acetate 70-130 95.820.821.7µg/m3Ethylbenzene 70-130 96.723.824.6µg/m34-Ethyltoluene 70-130 97.137.238.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130 93.119.120.5µg/m3Heptane 70-130 91.348.753.3µg/m3Hexachlorobutadiene 70-130 97.717.217.6µg/m3n-Hexane 70-130 10020.620.5µg/m32-Hexanone 70-130 97.512.012.3µg/m3Isopropyl Alchohol 70-130 91.213.514.8µg/m3Methyl Ethyl Ketone (MEK)70-130 91.616.518.0µg/m3Methyl tert-butyl ether (MTBE)70-130 91.218.720.5µg/m34-Methyl-2-Pentanone 70-130 Page 4 of 6Date:02/11/2022 12:31 PM Page 23 of 27 Quality Control Data 22-035-0037Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14783QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14778 LCS-V14778Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 90.215.717.4µg/m3Methylene Chloride 70-130 92.724.326.2µg/m3Naphthalene 70-130 91.57.888.61µg/m3Propene 70-130 88.718.921.3µg/m3Styrene 70-130 99.134.034.3µg/m31,1,2,2-Tetrachloroethane 70-130 94.932.233.9µg/m3Tetrachloroethene 70-130 90.413.314.7µg/m3Tetrahydrofuran 70-130 96.218.118.8µg/m3Toluene 70-130 10137.337.1µg/m31,2,4-Trichlorobenzene 70-130 91.525.027.3µg/m31,1,1-Trichloroethane 70-130 93.725.627.3µg/m31,1,2-Trichloroethane 70-130 89.524.126.9µg/m3Trichloroethene 70-130 10028.128.1µg/m3Trichlorofluoromethane 70-130 94.323.224.6µg/m31,2,4-Trimethylbenzene 70-130 97.924.124.6µg/m31,3,5-Trimethylbenzene 70-130 10418.317.6µg/m3Vinyl Acetate 70-130 95.312.212.8µg/m3Vinyl Chloride 70-130 98.621.421.7µg/m3o-Xylene 70-130 96.541.943.4µg/m3m,p-Xylene 70-130 98.34-Bromofluorobenzene (S)70-130 Page 5 of 6Date:02/11/2022 12:31 PM Page 24 of 27 Quality Control Data 22-035-0037Report No: Project Description: Client ID:Hart & Hickman (Charlotte) LSG-001 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V14855QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V14851 Associated Lab Samples: 93537, 93538, 93539 LRB-V14851 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/04/22 22:410.8610.242<0.242µg/m3Propene 02/04/22 22:411.880.0901<0.0901µg/m3Toluene 02/04/22 22:412.810.130<0.130µg/m3Trichlorofluoromethane 02/04/22 22:414-Bromofluorobenzene (S)98.0 70-130 LCS-V14851Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 78.36.758.61µg/m3Propene 70-130 82.415.518.8µg/m3Toluene 70-130 82.223.128.1µg/m3Trichlorofluoromethane 70-130 99.14-Bromofluorobenzene (S)70-130 Page 6 of 6Date:02/11/2022 12:31 PM Page 25 of 27 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:22-035-0037 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT-15 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:Zoe S. Vigilant Date & Time:02/04/2022 15:31:07 Special precautions or instructions included? Comments: Page 26 of 27 Page 27 of 27 Appendix D DEQ Risk Calculator Forms DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-5 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 50.4 0.504 -2.7E+04 3.7E-06 71-43-2 Benzene 3.93 0.0393 1.6E+00 2.6E+01 2.5E-08 3.0E-04 106-99-0 Butadiene, 1,3-9.19 0.0919 4.1E-01 1.8E+00 2.2E-07 1.0E-02 75-15-0 Carbon Disulfide 1.46 0.0146 -6.1E+02 4.8E-06 67-66-3 Chloroform 3.65 0.0365 5.3E-01 8.6E+01 6.8E-08 8.5E-05 110-82-7 Cyclohexane 10.8 0.108 -5.3E+03 4.1E-06 75-71-8 Dichlorodifluoromethane 3.85 0.0385 -8.8E+01 8.8E-05 100-41-4 Ethylbenzene 4.25 0.0425 4.9E+00 8.8E+02 8.7E-09 9.7E-06 142-82-5 Heptane, N-11.6 0.116 -3.5E+02 6.6E-05 110-54-3 Hexane, N-3.09 0.0309 -6.1E+02 1.0E-05 591-78-6 Hexanone, 2-5.22 0.0522 -2.6E+01 4.0E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone)9.71 0.0971 -4.4E+03 4.4E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)5.56 0.0556 -2.6E+03 4.2E-06 75-09-2 Methylene Chloride 1.07 0.0107 1.2E+03 5.3E+02 8.7E-12 4.1E-06 91-20-3 ~Naphthalene 4.31 0.0431 3.6E-01 2.6E+00 1.2E-07 3.3E-03 115-07-1 Propylene 38.7 0.387 -2.6E+03 2.9E-05 100-42-5 Styrene 4.64 0.0464 -8.8E+02 1.1E-05 127-18-4 Tetrachloroethylene 12.1 0.121 4.7E+01 3.5E+01 2.6E-09 6.9E-04 108-88-3 Toluene 31.7 0.317 -4.4E+03 1.4E-05 71-55-6 Trichloroethane, 1,1,1-1.29 0.0129 -4.4E+03 5.9E-07 95-63-6 Trimethylbenzene, 1,2,4-6.85 0.0685 -5.3E+01 2.6E-04 108-67-8 Trimethylbenzene, 1,3,5-2.11 0.0211 -5.3E+01 8.0E-05 106-42-3 Xylene, P-14 0.14 -8.8E+01 3.2E-04 108-38-3 Xylene, m-14 0.14 -8.8E+01 3.2E-04 95-47-6 Xylene, o-4.83 0.0483 -8.8E+01 1.1E-04 Cumulative:4.5E-07 1.7E-02 All concentrations are in ug/m3 Output Form 3E 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 - Resident Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-5 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 50.4 1.512 -6.5E+03 4.7E-05 71-43-2 Benzene 3.93 0.1179 3.6E-01 6.3E+00 3.3E-07 3.8E-03 106-99-0 Butadiene, 1,3-9.19 0.2757 9.4E-02 4.2E-01 2.9E-06 1.3E-01 75-15-0 Carbon Disulfide 1.46 0.0438 -1.5E+02 6.0E-05 67-66-3 Chloroform 3.65 0.1095 1.2E-01 2.0E+01 9.0E-07 1.1E-03 110-82-7 Cyclohexane 10.8 0.324 -1.3E+03 5.2E-05 75-71-8 Dichlorodifluoromethane 3.85 0.1155 -2.1E+01 1.1E-03 100-41-4 Ethylbenzene 4.25 0.1275 1.1E+00 2.1E+02 1.1E-07 1.2E-04 142-82-5 Heptane, N-11.6 0.348 -8.3E+01 8.3E-04 110-54-3 Hexane, N-3.09 0.0927 -1.5E+02 1.3E-04 591-78-6 Hexanone, 2-5.22 0.1566 -6.3E+00 5.0E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone)9.71 0.2913 -1.0E+03 5.6E-05 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)5.56 0.1668 -6.3E+02 5.3E-05 75-09-2 Methylene Chloride 1.07 0.0321 1.0E+02 1.3E+02 3.2E-10 5.1E-05 91-20-3 ~Naphthalene 4.31 0.1293 8.3E-02 6.3E-01 1.6E-06 4.1E-02 115-07-1 Propylene 38.7 1.161 -6.3E+02 3.7E-04 100-42-5 Styrene 4.64 0.1392 -2.1E+02 1.3E-04 127-18-4 Tetrachloroethylene 12.1 0.363 1.1E+01 8.3E+00 3.4E-08 8.7E-03 108-88-3 Toluene 31.7 0.951 -1.0E+03 1.8E-04 71-55-6 Trichloroethane, 1,1,1-1.29 0.0387 -1.0E+03 7.4E-06 95-63-6 Trimethylbenzene, 1,2,4-6.85 0.2055 -1.3E+01 3.3E-03 108-67-8 Trimethylbenzene, 1,3,5-2.11 0.0633 -1.3E+01 1.0E-03 106-42-3 Xylene, P-14 0.42 -2.1E+01 4.0E-03 108-38-3 Xylene, m-14 0.42 -2.1E+01 4.0E-03 95-47-6 Xylene, o-4.83 0.1449 -2.1E+01 1.4E-03 Cumulative:5.9E-06 2.1E-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 Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-5 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 5.9E-06 2.1E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 4.5E-07 1.7E-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 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: DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-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 85.8 0.858 -2.7E+04 6.3E-06 71-43-2 Benzene 7.32 0.0732 1.6E+00 2.6E+01 4.7E-08 5.6E-04 106-99-0 Butadiene, 1,3-21.8 0.218 4.1E-01 1.8E+00 5.3E-07 2.5E-02 67-66-3 Chloroform 43.9 0.439 5.3E-01 8.6E+01 8.2E-07 1.0E-03 110-82-7 Cyclohexane 15.6 0.156 -5.3E+03 5.9E-06 100-41-4 Ethylbenzene 6.04 0.0604 4.9E+00 8.8E+02 1.2E-08 1.4E-05 142-82-5 Heptane, N-36.7 0.367 -3.5E+02 2.1E-04 110-54-3 Hexane, N-13.9 0.139 -6.1E+02 4.5E-05 591-78-6 Hexanone, 2-7.61 0.0761 -2.6E+01 5.8E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone)17.5 0.175 -4.4E+03 8.0E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)5.55 0.0555 -2.6E+03 4.2E-06 91-20-3 ~Naphthalene 4.39 0.0439 3.6E-01 2.6E+00 1.2E-07 3.3E-03 115-07-1 Propylene 178 1.78 -2.6E+03 1.4E-04 100-42-5 Styrene 4.95 0.0495 -8.8E+02 1.1E-05 127-18-4 Tetrachloroethylene 20.2 0.202 4.7E+01 3.5E+01 4.3E-09 1.2E-03 108-88-3 Toluene 55.6 0.556 -4.4E+03 2.5E-05 71-55-6 Trichloroethane, 1,1,1-2.61 0.0261 -4.4E+03 1.2E-06 95-63-6 Trimethylbenzene, 1,2,4-11.2 0.112 -5.3E+01 4.3E-04 108-67-8 Trimethylbenzene, 1,3,5-2.99 0.0299 -5.3E+01 1.1E-04 106-42-3 Xylene, P-18.4 0.184 -8.8E+01 4.2E-04 108-38-3 Xylene, m-18.4 0.184 -8.8E+01 4.2E-04 95-47-6 Xylene, o-6.66 0.0666 -8.8E+01 1.5E-04 Cumulative:1.5E-06 3.4E-02 All concentrations are in ug/m3 Output Form 3E 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 - Resident Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-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 85.8 2.574 -6.5E+03 8.0E-05 71-43-2 Benzene 7.32 0.2196 3.6E-01 6.3E+00 6.1E-07 7.0E-03 106-99-0 Butadiene, 1,3-21.8 0.654 9.4E-02 4.2E-01 7.0E-06 3.1E-01 67-66-3 Chloroform 43.9 1.317 1.2E-01 2.0E+01 1.1E-05 1.3E-02 110-82-7 Cyclohexane 15.6 0.468 -1.3E+03 7.5E-05 100-41-4 Ethylbenzene 6.04 0.1812 1.1E+00 2.1E+02 1.6E-07 1.7E-04 142-82-5 Heptane, N-36.7 1.101 -8.3E+01 2.6E-03 110-54-3 Hexane, N-13.9 0.417 -1.5E+02 5.7E-04 591-78-6 Hexanone, 2-7.61 0.2283 -6.3E+00 7.3E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone)17.5 0.525 -1.0E+03 1.0E-04 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)5.55 0.1665 -6.3E+02 5.3E-05 91-20-3 ~Naphthalene 4.39 0.1317 8.3E-02 6.3E-01 1.6E-06 4.2E-02 115-07-1 Propylene 178 5.34 -6.3E+02 1.7E-03 100-42-5 Styrene 4.95 0.1485 -2.1E+02 1.4E-04 127-18-4 Tetrachloroethylene 20.2 0.606 1.1E+01 8.3E+00 5.6E-08 1.5E-02 108-88-3 Toluene 55.6 1.668 -1.0E+03 3.2E-04 71-55-6 Trichloroethane, 1,1,1-2.61 0.0783 -1.0E+03 1.5E-05 95-63-6 Trimethylbenzene, 1,2,4-11.2 0.336 -1.3E+01 5.4E-03 108-67-8 Trimethylbenzene, 1,3,5-2.99 0.0897 -1.3E+01 1.4E-03 106-42-3 Xylene, P-18.4 0.552 -2.1E+01 5.3E-03 108-38-3 Xylene, m-18.4 0.552 -2.1E+01 5.3E-03 95-47-6 Xylene, o-6.66 0.1998 -2.1E+01 1.9E-03 Cumulative:2.0E-05 4.2E-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 Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-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 2.0E-05 4.2E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 1.5E-06 3.4E-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 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: DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-7 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 65.8 0.658 -2.7E+04 4.8E-06 71-43-2 Benzene 3.28 0.0328 1.6E+00 2.6E+01 2.1E-08 2.5E-04 106-99-0 Butadiene, 1,3-9.16 0.0916 4.1E-01 1.8E+00 2.2E-07 1.0E-02 75-15-0 Carbon Disulfide 2.98 0.0298 -6.1E+02 9.7E-06 56-23-5 Carbon Tetrachloride 1.04 0.0104 2.0E+00 8.8E+01 5.1E-09 2.4E-05 67-66-3 Chloroform 8.38 0.0838 5.3E-01 8.6E+01 1.6E-07 2.0E-04 110-82-7 Cyclohexane 9.22 0.0922 -5.3E+03 3.5E-06 75-71-8 Dichlorodifluoromethane 6.56 0.0656 -8.8E+01 1.5E-04 100-41-4 Ethylbenzene 4.12 0.0412 4.9E+00 8.8E+02 8.4E-09 9.4E-06 109-99-9 ~Tetrahydrofuran 0.622 0.00622 -1.8E+03 7.1E-07 142-82-5 Heptane, N-10.8 0.108 -3.5E+02 6.2E-05 110-54-3 Hexane, N-4.56 0.0456 -6.1E+02 1.5E-05 591-78-6 Hexanone, 2-4.39 0.0439 -2.6E+01 3.3E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone)14.1 0.141 -4.4E+03 6.4E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)4.03 0.0403 -2.6E+03 3.1E-06 91-20-3 ~Naphthalene 16.3 0.163 3.6E-01 2.6E+00 4.5E-07 1.2E-02 115-07-1 Propylene 86 0.86 -2.6E+03 6.5E-05 100-42-5 Styrene 4.61 0.0461 -8.8E+02 1.1E-05 127-18-4 Tetrachloroethylene 36.2 0.362 4.7E+01 3.5E+01 7.7E-09 2.1E-03 108-88-3 Toluene 30.9 0.309 -4.4E+03 1.4E-05 71-55-6 Trichloroethane, 1,1,1-14 0.14 -4.4E+03 6.4E-06 95-63-6 Trimethylbenzene, 1,2,4-5.29 0.0529 -5.3E+01 2.0E-04 108-67-8 Trimethylbenzene, 1,3,5-1.38 0.0138 -5.3E+01 5.3E-05 106-42-3 Xylene, P-13.4 0.134 -8.8E+01 3.1E-04 108-38-3 Xylene, m-13.4 0.134 -8.8E+01 3.1E-04 95-47-6 Xylene, o-4.46 0.0446 -8.8E+01 1.0E-04 Cumulative:8.8E-07 2.7E-02 All concentrations are in ug/m3 Output Form 3E 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 - Resident Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-7 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 65.8 1.974 -6.5E+03 6.1E-05 71-43-2 Benzene 3.28 0.0984 3.6E-01 6.3E+00 2.7E-07 3.1E-03 106-99-0 Butadiene, 1,3-9.16 0.2748 9.4E-02 4.2E-01 2.9E-06 1.3E-01 75-15-0 Carbon Disulfide 2.98 0.0894 -1.5E+02 1.2E-04 56-23-5 Carbon Tetrachloride 1.04 0.0312 4.7E-01 2.1E+01 6.7E-08 3.0E-04 67-66-3 Chloroform 8.38 0.2514 1.2E-01 2.0E+01 2.1E-06 2.5E-03 110-82-7 Cyclohexane 9.22 0.2766 -1.3E+03 4.4E-05 75-71-8 Dichlorodifluoromethane 6.56 0.1968 -2.1E+01 1.9E-03 100-41-4 Ethylbenzene 4.12 0.1236 1.1E+00 2.1E+02 1.1E-07 1.2E-04 109-99-9 ~Tetrahydrofuran 0.622 0.01866 -4.2E+02 8.9E-06 142-82-5 Heptane, N-10.8 0.324 -8.3E+01 7.8E-04 110-54-3 Hexane, N-4.56 0.1368 -1.5E+02 1.9E-04 591-78-6 Hexanone, 2-4.39 0.1317 -6.3E+00 4.2E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone)14.1 0.423 -1.0E+03 8.1E-05 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)4.03 0.1209 -6.3E+02 3.9E-05 91-20-3 ~Naphthalene 16.3 0.489 8.3E-02 6.3E-01 5.9E-06 1.6E-01 115-07-1 Propylene 86 2.58 -6.3E+02 8.2E-04 100-42-5 Styrene 4.61 0.1383 -2.1E+02 1.3E-04 127-18-4 Tetrachloroethylene 36.2 1.086 1.1E+01 8.3E+00 1.0E-07 2.6E-02 108-88-3 Toluene 30.9 0.927 -1.0E+03 1.8E-04 71-55-6 Trichloroethane, 1,1,1-14 0.42 -1.0E+03 8.1E-05 95-63-6 Trimethylbenzene, 1,2,4-5.29 0.1587 -1.3E+01 2.5E-03 108-67-8 Trimethylbenzene, 1,3,5-1.38 0.0414 -1.3E+01 6.6E-04 106-42-3 Xylene, P-13.4 0.402 -2.1E+01 3.9E-03 108-38-3 Xylene, m-13.4 0.402 -2.1E+01 3.9E-03 95-47-6 Xylene, o-4.46 0.1338 -2.1E+01 1.3E-03 Cumulative:1.1E-05 3.4E-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 Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-7 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 1.1E-05 3.4E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 8.8E-07 2.7E-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 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: DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-8 / DUP-020322 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 83.9 0.839 - 2.7E+04 6.2E-06 71-43-2 Benzene 20.6 0.206 1.6E+00 2.6E+01 1.3E-07 1.6E-03 106-99-0 Butadiene, 1,3- 34.5 0.345 4.1E-01 1.8E+00 8.4E-07 3.9E-02 56-23-5 Carbon Tetrachloride 0.616 0.00616 2.0E+00 8.8E+01 3.0E-09 1.4E-05 67-66-3 Chloroform 22.7 0.227 5.3E-01 8.6E+01 4.3E-07 5.3E-04 110-82-7 Cyclohexane 9.98 0.0998 - 5.3E+03 3.8E-06 75-71-8 Dichlorodifluoromethane 7.21 0.0721 - 8.8E+01 1.6E-04 100-41-4 Ethylbenzene 29.3 0.293 4.9E+00 8.8E+02 6.0E-08 6.7E-05 109-99-9 ~Tetrahydrofuran 2.05 0.0205 - 1.8E+03 2.3E-06 142-82-5 Heptane, N- 70.8 0.708 - 3.5E+02 4.0E-04 110-54-3 Hexane, N- 22.9 0.229 - 6.1E+02 7.5E-05 591-78-6 Hexanone, 2- 13.8 0.138 - 2.6E+01 1.1E-03 67-63-0 Isopropanol 6.17 0.0617 - 1.8E+02 7.0E-05 78-93-3 Methyl Ethyl Ketone (2-Butanone) 15.3 0.153 - 4.4E+03 7.0E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone) 11 0.11 - 2.6E+03 8.4E-06 75-09-2 Methylene Chloride 9.74 0.0974 1.2E+03 5.3E+02 7.9E-11 3.7E-05 91-20-3 ~Naphthalene 5.66 0.0566 3.6E-01 2.6E+00 1.6E-07 4.3E-03 115-07-1 Propylene 92.6 0.926 - 2.6E+03 7.0E-05 100-42-5 Styrene 4.7 0.047 - 8.8E+02 1.1E-05 127-18-4 Tetrachloroethylene 6.02 0.0602 4.7E+01 3.5E+01 1.3E-09 3.4E-04 108-88-3 Toluene 184 1.84 - 4.4E+03 8.4E-05 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2- 1.46 0.0146 - 4.4E+03 6.7E-07 71-55-6 Trichloroethane, 1,1,1- 1.04 0.0104 - 4.4E+03 4.7E-07 95-63-6 Trimethylbenzene, 1,2,4- 27.6 0.276 - 5.3E+01 1.1E-03 108-67-8 Trimethylbenzene, 1,3,5- 8.24 0.0824 - 5.3E+01 3.1E-04 106-42-3 Xylene, P- 96.7 0.967 - 8.8E+01 2.2E-03 108-38-3 Xylene, m- 96.7 0.967 - 8.8E+01 2.2E-03 95-47-6 Xylene, o- 33.6 0.336 - 8.8E+01 7.7E-04 Cumulative: 1.6E-06 5.5E-02 All concentrations are in ug/m3 Output Form 3E 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 - Resident Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-8 / DUP-020322 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 83.9 2.517 - 6.5E+03 7.8E-05 71-43-2 Benzene 20.6 0.618 3.6E-01 6.3E+00 1.7E-06 2.0E-02 106-99-0 Butadiene, 1,3- 34.5 1.035 9.4E-02 4.2E-01 1.1E-05 5.0E-01 56-23-5 Carbon Tetrachloride 0.616 0.01848 4.7E-01 2.1E+01 3.9E-08 1.8E-04 67-66-3 Chloroform 22.7 0.681 1.2E-01 2.0E+01 5.6E-06 6.7E-03 110-82-7 Cyclohexane 9.98 0.2994 - 1.3E+03 4.8E-05 75-71-8 Dichlorodifluoromethane 7.21 0.2163 - 2.1E+01 2.1E-03 100-41-4 Ethylbenzene 29.3 0.879 1.1E+00 2.1E+02 7.8E-07 8.4E-04 109-99-9 ~Tetrahydrofuran 2.05 0.0615 - 4.2E+02 2.9E-05 142-82-5 Heptane, N- 70.8 2.124 - 8.3E+01 5.1E-03 110-54-3 Hexane, N- 22.9 0.687 - 1.5E+02 9.4E-04 591-78-6 Hexanone, 2- 13.8 0.414 - 6.3E+00 1.3E-02 67-63-0 Isopropanol 6.17 0.1851 - 4.2E+01 8.9E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone) 15.3 0.459 - 1.0E+03 8.8E-05 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone) 11 0.33 - 6.3E+02 1.1E-04 75-09-2 Methylene Chloride 9.74 0.2922 1.0E+02 1.3E+02 2.9E-09 4.7E-04 91-20-3 ~Naphthalene 5.66 0.1698 8.3E-02 6.3E-01 2.1E-06 5.4E-02 115-07-1 Propylene 92.6 2.778 - 6.3E+02 8.9E-04 100-42-5 Styrene 4.7 0.141 - 2.1E+02 1.4E-04 127-18-4 Tetrachloroethylene 6.02 0.1806 1.1E+01 8.3E+00 1.7E-08 4.3E-03 108-88-3 Toluene 184 5.52 - 1.0E+03 1.1E-03 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2- 1.46 0.0438 - 1.0E+03 8.4E-06 71-55-6 Trichloroethane, 1,1,1- 1.04 0.0312 - 1.0E+03 6.0E-06 95-63-6 Trimethylbenzene, 1,2,4- 27.6 0.828 - 1.3E+01 1.3E-02 108-67-8 Trimethylbenzene, 1,3,5- 8.24 0.2472 - 1.3E+01 4.0E-03 106-42-3 Xylene, P- 96.7 2.901 - 2.1E+01 2.8E-02 108-38-3 Xylene, m- 96.7 2.901 - 2.1E+01 2.8E-02 95-47-6 Xylene, o- 33.6 1.008 - 2.1E+01 9.7E-03 Cumulative: 2.1E-05 6.9E-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 Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-8 / DUP-020322 Receptor Pathway Carcinogenic Risk Hazard Index Risk exceeded? Soil 0.0E+00 0.0E+00 NO Groundwater Use* NC NC NC Soil 0.0E+00 0.0E+00 NO 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 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 2.1E-05 6.9E-01 NO Indoor Air 0.0E+00 0.0E+00 NO Groundwater to Indoor Air 0.0E+00 0.0E+00 NO Soil Gas to Indoor Air 1.6E-06 5.5E-02 NO Indoor Air 0.0E+00 0.0E+00 NO Pathway Source Source Soil NM Source Groundwater NM Source Soil NM Source Groundwater NM 3. NM = Not Modeled 4. NC = Pathway not calculated 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: DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-9 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 106 1.06 -2.7E+04 7.8E-06 71-43-2 Benzene 34.8 0.348 1.6E+00 2.6E+01 2.2E-07 2.6E-03 74-83-9 Bromomethane 1.63 0.0163 -4.4E+00 7.4E-04 106-99-0 Butadiene, 1,3-39.1 0.391 4.1E-01 1.8E+00 9.6E-07 4.5E-02 75-15-0 Carbon Disulfide 7.67 0.0767 -6.1E+02 2.5E-05 56-23-5 Carbon Tetrachloride 0.755 0.00755 2.0E+00 8.8E+01 3.7E-09 1.7E-05 67-66-3 Chloroform 5.23 0.0523 5.3E-01 8.6E+01 9.8E-08 1.2E-04 110-82-7 Cyclohexane 15.5 0.155 -5.3E+03 5.9E-06 75-71-8 Dichlorodifluoromethane 20.8 0.208 -8.8E+01 4.7E-04 100-41-4 Ethylbenzene 42 0.42 4.9E+00 8.8E+02 8.6E-08 9.6E-05 109-99-9 ~Tetrahydrofuran 1.68 0.0168 -1.8E+03 1.9E-06 142-82-5 Heptane, N-178 1.78 -3.5E+02 1.0E-03 110-54-3 Hexane, N-27.4 0.274 -6.1E+02 8.9E-05 78-93-3 Methyl Ethyl Ketone (2-Butanone)18.2 0.182 -4.4E+03 8.3E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)5.9 0.059 -2.6E+03 4.5E-06 75-09-2 Methylene Chloride 2.82 0.0282 1.2E+03 5.3E+02 2.3E-11 1.1E-05 91-20-3 ~Naphthalene 4.45 0.0445 3.6E-01 2.6E+00 1.2E-07 3.4E-03 115-07-1 Propylene 124 1.24 -2.6E+03 9.4E-05 100-42-5 Styrene 4.7 0.047 -8.8E+02 1.1E-05 127-18-4 Tetrachloroethylene 6.01 0.0601 4.7E+01 3.5E+01 1.3E-09 3.4E-04 108-88-3 Toluene 367 3.67 -4.4E+03 1.7E-04 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-2.87 0.0287 -4.4E+03 1.3E-06 95-63-6 Trimethylbenzene, 1,2,4-18.2 0.182 -5.3E+01 6.9E-04 108-67-8 Trimethylbenzene, 1,3,5-6.14 0.0614 -5.3E+01 2.3E-04 106-42-3 Xylene, P-133 1.33 -8.8E+01 3.0E-03 108-38-3 Xylene, m-133 1.33 -8.8E+01 3.0E-03 95-47-6 Xylene, o-44.5 0.445 -8.8E+01 1.0E-03 Cumulative:1.5E-06 6.2E-02 All concentrations are in ug/m3 Output Form 3E 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 - Resident Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-9 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 106 3.18 -6.5E+03 9.8E-05 71-43-2 Benzene 34.8 1.044 3.6E-01 6.3E+00 2.9E-06 3.3E-02 74-83-9 Bromomethane 1.63 0.0489 -1.0E+00 9.4E-03 106-99-0 Butadiene, 1,3-39.1 1.173 9.4E-02 4.2E-01 1.3E-05 5.6E-01 75-15-0 Carbon Disulfide 7.67 0.2301 -1.5E+02 3.2E-04 56-23-5 Carbon Tetrachloride 0.755 0.02265 4.7E-01 2.1E+01 4.8E-08 2.2E-04 67-66-3 Chloroform 5.23 0.1569 1.2E-01 2.0E+01 1.3E-06 1.5E-03 110-82-7 Cyclohexane 15.5 0.465 -1.3E+03 7.4E-05 75-71-8 Dichlorodifluoromethane 20.8 0.624 -2.1E+01 6.0E-03 100-41-4 Ethylbenzene 42 1.26 1.1E+00 2.1E+02 1.1E-06 1.2E-03 109-99-9 ~Tetrahydrofuran 1.68 0.0504 -4.2E+02 2.4E-05 142-82-5 Heptane, N-178 5.34 -8.3E+01 1.3E-02 110-54-3 Hexane, N-27.4 0.822 -1.5E+02 1.1E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone)18.2 0.546 -1.0E+03 1.0E-04 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)5.9 0.177 -6.3E+02 5.7E-05 75-09-2 Methylene Chloride 2.82 0.0846 1.0E+02 1.3E+02 8.3E-10 1.4E-04 91-20-3 ~Naphthalene 4.45 0.1335 8.3E-02 6.3E-01 1.6E-06 4.3E-02 115-07-1 Propylene 124 3.72 -6.3E+02 1.2E-03 100-42-5 Styrene 4.7 0.141 -2.1E+02 1.4E-04 127-18-4 Tetrachloroethylene 6.01 0.1803 1.1E+01 8.3E+00 1.7E-08 4.3E-03 108-88-3 Toluene 367 11.01 -1.0E+03 2.1E-03 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-2.87 0.0861 -1.0E+03 1.7E-05 95-63-6 Trimethylbenzene, 1,2,4-18.2 0.546 -1.3E+01 8.7E-03 108-67-8 Trimethylbenzene, 1,3,5-6.14 0.1842 -1.3E+01 2.9E-03 106-42-3 Xylene, P-133 3.99 -2.1E+01 3.8E-02 108-38-3 Xylene, m-133 3.99 -2.1E+01 3.8E-02 95-47-6 Xylene, o-44.5 1.335 -2.1E+01 1.3E-02 Cumulative:2.0E-05 7.8E-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 Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-9 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 7.8E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 1.5E-06 6.2E-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 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: DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-10 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 75.4 0.754 -2.7E+04 5.6E-06 71-43-2 Benzene 19.9 0.199 1.6E+00 2.6E+01 1.3E-07 1.5E-03 74-83-9 Bromomethane 3.82 0.0382 -4.4E+00 1.7E-03 106-99-0 Butadiene, 1,3-21 0.21 4.1E-01 1.8E+00 5.1E-07 2.4E-02 67-66-3 Chloroform 96.7 0.967 5.3E-01 8.6E+01 1.8E-06 2.3E-03 110-82-7 Cyclohexane 25.1 0.251 -5.3E+03 9.6E-06 75-71-8 Dichlorodifluoromethane 8.9 0.089 -8.8E+01 2.0E-04 100-41-4 Ethylbenzene 29.8 0.298 4.9E+00 8.8E+02 6.1E-08 6.8E-05 109-99-9 ~Tetrahydrofuran 1.76 0.0176 -1.8E+03 2.0E-06 142-82-5 Heptane, N-110 1.1 -3.5E+02 6.3E-04 110-54-3 Hexane, N-25.6 0.256 -6.1E+02 8.3E-05 78-93-3 Methyl Ethyl Ketone (2-Butanone)17 0.17 -4.4E+03 7.8E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)7.34 0.0734 -2.6E+03 5.6E-06 115-07-1 Propylene 229 2.29 -2.6E+03 1.7E-04 100-42-5 Styrene 4.62 0.0462 -8.8E+02 1.1E-05 127-18-4 Tetrachloroethylene 10.6 0.106 4.7E+01 3.5E+01 2.2E-09 6.1E-04 108-88-3 Toluene 274 2.74 -4.4E+03 1.3E-04 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-2.64 0.0264 -4.4E+03 1.2E-06 71-55-6 Trichloroethane, 1,1,1-12.4 0.124 -4.4E+03 5.7E-06 95-63-6 Trimethylbenzene, 1,2,4-23 0.23 -5.3E+01 8.8E-04 108-67-8 Trimethylbenzene, 1,3,5-14.6 0.146 -5.3E+01 5.6E-04 106-42-3 Xylene, P-96.1 0.961 -8.8E+01 2.2E-03 108-38-3 Xylene, m-96.1 0.961 -8.8E+01 2.2E-03 95-47-6 Xylene, o-32.7 0.327 -8.8E+01 7.5E-04 Cumulative:2.5E-06 3.8E-02 All concentrations are in ug/m3 Output Form 3E 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 - Resident Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-10 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 75.4 2.262 -6.5E+03 7.0E-05 71-43-2 Benzene 19.9 0.597 3.6E-01 6.3E+00 1.7E-06 1.9E-02 74-83-9 Bromomethane 3.82 0.1146 -1.0E+00 2.2E-02 106-99-0 Butadiene, 1,3-21 0.63 9.4E-02 4.2E-01 6.7E-06 3.0E-01 67-66-3 Chloroform 96.7 2.901 1.2E-01 2.0E+01 2.4E-05 2.8E-02 110-82-7 Cyclohexane 25.1 0.753 -1.3E+03 1.2E-04 75-71-8 Dichlorodifluoromethane 8.9 0.267 -2.1E+01 2.6E-03 100-41-4 Ethylbenzene 29.8 0.894 1.1E+00 2.1E+02 8.0E-07 8.6E-04 109-99-9 ~Tetrahydrofuran 1.76 0.0528 -4.2E+02 2.5E-05 142-82-5 Heptane, N-110 3.3 -8.3E+01 7.9E-03 110-54-3 Hexane, N-25.6 0.768 -1.5E+02 1.1E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone)17 0.51 -1.0E+03 9.8E-05 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)7.34 0.2202 -6.3E+02 7.0E-05 115-07-1 Propylene 229 6.87 -6.3E+02 2.2E-03 100-42-5 Styrene 4.62 0.1386 -2.1E+02 1.3E-04 127-18-4 Tetrachloroethylene 10.6 0.318 1.1E+01 8.3E+00 2.9E-08 7.6E-03 108-88-3 Toluene 274 8.22 -1.0E+03 1.6E-03 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-2.64 0.0792 -1.0E+03 1.5E-05 71-55-6 Trichloroethane, 1,1,1-12.4 0.372 -1.0E+03 7.1E-05 95-63-6 Trimethylbenzene, 1,2,4-23 0.69 -1.3E+01 1.1E-02 108-67-8 Trimethylbenzene, 1,3,5-14.6 0.438 -1.3E+01 7.0E-03 106-42-3 Xylene, P-96.1 2.883 -2.1E+01 2.8E-02 108-38-3 Xylene, m-96.1 2.883 -2.1E+01 2.8E-02 95-47-6 Xylene, o-32.7 0.981 -2.1E+01 9.4E-03 Cumulative:3.3E-05 4.8E-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 Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-10 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-05 4.8E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 2.5E-06 3.8E-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 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: DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-11 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 61.6 0.616 -2.7E+04 4.5E-06 71-43-2 Benzene 22.6 0.226 1.6E+00 2.6E+01 1.4E-07 1.7E-03 106-99-0 Butadiene, 1,3-7.35 0.0735 4.1E-01 1.8E+00 1.8E-07 8.4E-03 75-15-0 Carbon Disulfide 17 0.17 -6.1E+02 5.5E-05 67-66-3 Chloroform 175 1.75 5.3E-01 8.6E+01 3.3E-06 4.1E-03 110-82-7 Cyclohexane 13.2 0.132 -5.3E+03 5.0E-06 75-71-8 Dichlorodifluoromethane 4.91 0.0491 -8.8E+01 1.1E-04 100-41-4 Ethylbenzene 47.6 0.476 4.9E+00 8.8E+02 9.7E-08 1.1E-04 109-99-9 ~Tetrahydrofuran 1.2 0.012 -1.8E+03 1.4E-06 142-82-5 Heptane, N-130 1.3 -3.5E+02 7.4E-04 110-54-3 Hexane, N-19.2 0.192 -6.1E+02 6.3E-05 78-93-3 Methyl Ethyl Ketone (2-Butanone)7.57 0.0757 -4.4E+03 3.5E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)3.36 0.0336 -2.6E+03 2.6E-06 91-20-3 ~Naphthalene 4.6 0.046 3.6E-01 2.6E+00 1.3E-07 3.5E-03 115-07-1 Propylene 42.7 0.427 -2.6E+03 3.2E-05 100-42-5 Styrene 4.78 0.0478 -8.8E+02 1.1E-05 127-18-4 Tetrachloroethylene 15.5 0.155 4.7E+01 3.5E+01 3.3E-09 8.8E-04 108-88-3 Toluene 209 2.09 -4.4E+03 9.5E-05 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-5.43 0.0543 -4.4E+03 2.5E-06 71-55-6 Trichloroethane, 1,1,1-4.26 0.0426 -4.4E+03 1.9E-06 95-63-6 Trimethylbenzene, 1,2,4-38.8 0.388 -5.3E+01 1.5E-03 108-67-8 Trimethylbenzene, 1,3,5-12.2 0.122 -5.3E+01 4.6E-04 106-42-3 Xylene, P-160 1.6 -8.8E+01 3.7E-03 108-38-3 Xylene, m-160 1.6 -8.8E+01 3.7E-03 95-47-6 Xylene, o-52.6 0.526 -8.8E+01 1.2E-03 Cumulative:3.8E-06 3.0E-02 All concentrations are in ug/m3 Output Form 3E 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 - Resident Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-11 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 61.6 1.848 -6.5E+03 5.7E-05 71-43-2 Benzene 22.6 0.678 3.6E-01 6.3E+00 1.9E-06 2.2E-02 106-99-0 Butadiene, 1,3-7.35 0.2205 9.4E-02 4.2E-01 2.4E-06 1.1E-01 75-15-0 Carbon Disulfide 17 0.51 -1.5E+02 7.0E-04 67-66-3 Chloroform 175 5.25 1.2E-01 2.0E+01 4.3E-05 5.1E-02 110-82-7 Cyclohexane 13.2 0.396 -1.3E+03 6.3E-05 75-71-8 Dichlorodifluoromethane 4.91 0.1473 -2.1E+01 1.4E-03 100-41-4 Ethylbenzene 47.6 1.428 1.1E+00 2.1E+02 1.3E-06 1.4E-03 109-99-9 ~Tetrahydrofuran 1.2 0.036 -4.2E+02 1.7E-05 142-82-5 Heptane, N-130 3.9 -8.3E+01 9.3E-03 110-54-3 Hexane, N-19.2 0.576 -1.5E+02 7.9E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone)7.57 0.2271 -1.0E+03 4.4E-05 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)3.36 0.1008 -6.3E+02 3.2E-05 91-20-3 ~Naphthalene 4.6 0.138 8.3E-02 6.3E-01 1.7E-06 4.4E-02 115-07-1 Propylene 42.7 1.281 -6.3E+02 4.1E-04 100-42-5 Styrene 4.78 0.1434 -2.1E+02 1.4E-04 127-18-4 Tetrachloroethylene 15.5 0.465 1.1E+01 8.3E+00 4.3E-08 1.1E-02 108-88-3 Toluene 209 6.27 -1.0E+03 1.2E-03 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-5.43 0.1629 -1.0E+03 3.1E-05 71-55-6 Trichloroethane, 1,1,1-4.26 0.1278 -1.0E+03 2.5E-05 95-63-6 Trimethylbenzene, 1,2,4-38.8 1.164 -1.3E+01 1.9E-02 108-67-8 Trimethylbenzene, 1,3,5-12.2 0.366 -1.3E+01 5.8E-03 106-42-3 Xylene, P-160 4.8 -2.1E+01 4.6E-02 108-38-3 Xylene, m-160 4.8 -2.1E+01 4.6E-02 95-47-6 Xylene, o-52.6 1.578 -2.1E+01 1.5E-02 Cumulative:5.0E-05 3.8E-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 Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-11 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 5.0E-05 3.8E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 3.8E-06 3.0E-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 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: DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-12 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 70.4 0.704 -2.7E+04 5.2E-06 71-43-2 Benzene 15.7 0.157 1.6E+00 2.6E+01 1.0E-07 1.2E-03 106-99-0 Butadiene, 1,3-42 0.42 4.1E-01 1.8E+00 1.0E-06 4.8E-02 75-15-0 Carbon Disulfide 19.2 0.192 -6.1E+02 6.3E-05 67-66-3 Chloroform 8.96 0.0896 5.3E-01 8.6E+01 1.7E-07 2.1E-04 110-82-7 Cyclohexane 15.8 0.158 -5.3E+03 6.0E-06 100-41-4 Ethylbenzene 14.9 0.149 4.9E+00 8.8E+02 3.0E-08 3.4E-05 142-82-5 Heptane, N-159 1.59 -3.5E+02 9.1E-04 110-54-3 Hexane, N-40.4 0.404 -6.1E+02 1.3E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone)16 0.16 -4.4E+03 7.3E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)2.28 0.0228 -2.6E+03 1.7E-06 91-20-3 ~Naphthalene 4.36 0.0436 3.6E-01 2.6E+00 1.2E-07 3.3E-03 115-07-1 Propylene 755 7.55 -2.6E+03 5.7E-04 127-18-4 Tetrachloroethylene 10.9 0.109 4.7E+01 3.5E+01 2.3E-09 6.2E-04 108-88-3 Toluene 153 1.53 -4.4E+03 7.0E-05 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-3.07 0.0307 -4.4E+03 1.4E-06 95-63-6 Trimethylbenzene, 1,2,4-11.3 0.113 -5.3E+01 4.3E-04 108-67-8 Trimethylbenzene, 1,3,5-3.55 0.0355 -5.3E+01 1.4E-04 106-42-3 Xylene, P-47.6 0.476 -8.8E+01 1.1E-03 108-38-3 Xylene, m-47.6 0.476 -8.8E+01 1.1E-03 95-47-6 Xylene, o-15.4 0.154 -8.8E+01 3.5E-04 Cumulative:1.4E-06 5.8E-02 All concentrations are in ug/m3 Output Form 3E 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 - Resident Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-12 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 70.4 2.112 -6.5E+03 6.5E-05 71-43-2 Benzene 15.7 0.471 3.6E-01 6.3E+00 1.3E-06 1.5E-02 106-99-0 Butadiene, 1,3-42 1.26 9.4E-02 4.2E-01 1.3E-05 6.0E-01 75-15-0 Carbon Disulfide 19.2 0.576 -1.5E+02 7.9E-04 67-66-3 Chloroform 8.96 0.2688 1.2E-01 2.0E+01 2.2E-06 2.6E-03 110-82-7 Cyclohexane 15.8 0.474 -1.3E+03 7.6E-05 100-41-4 Ethylbenzene 14.9 0.447 1.1E+00 2.1E+02 4.0E-07 4.3E-04 142-82-5 Heptane, N-159 4.77 -8.3E+01 1.1E-02 110-54-3 Hexane, N-40.4 1.212 -1.5E+02 1.7E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone)16 0.48 -1.0E+03 9.2E-05 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)2.28 0.0684 -6.3E+02 2.2E-05 91-20-3 ~Naphthalene 4.36 0.1308 8.3E-02 6.3E-01 1.6E-06 4.2E-02 115-07-1 Propylene 755 22.65 -6.3E+02 7.2E-03 127-18-4 Tetrachloroethylene 10.9 0.327 1.1E+01 8.3E+00 3.0E-08 7.8E-03 108-88-3 Toluene 153 4.59 -1.0E+03 8.8E-04 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-3.07 0.0921 -1.0E+03 1.8E-05 95-63-6 Trimethylbenzene, 1,2,4-11.3 0.339 -1.3E+01 5.4E-03 108-67-8 Trimethylbenzene, 1,3,5-3.55 0.1065 -1.3E+01 1.7E-03 106-42-3 Xylene, P-47.6 1.428 -2.1E+01 1.4E-02 108-38-3 Xylene, m-47.6 1.428 -2.1E+01 1.4E-02 95-47-6 Xylene, o-15.4 0.462 -2.1E+01 4.4E-03 Cumulative:1.9E-05 7.3E-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 Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-12 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 1.9E-05 7.3E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 1.4E-06 5.8E-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 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: DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-13 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 25.4 0.254 -2.7E+04 1.9E-06 71-43-2 Benzene 1.37 0.0137 1.6E+00 2.6E+01 8.7E-09 1.0E-04 75-27-4 Bromodichloromethane 2.28 0.0228 3.3E-01 -6.9E-08 106-99-0 Butadiene, 1,3-1.78 0.0178 4.1E-01 1.8E+00 4.4E-08 2.0E-03 75-15-0 Carbon Disulfide 1.74 0.0174 -6.1E+02 5.7E-06 67-66-3 Chloroform 62.3 0.623 5.3E-01 8.6E+01 1.2E-06 1.5E-03 74-87-3 Chloromethane 0.357 0.00357 -7.9E+01 9.1E-06 110-82-7 Cyclohexane 8.24 0.0824 -5.3E+03 3.1E-06 75-71-8 Dichlorodifluoromethane 3.61 0.0361 -8.8E+01 8.2E-05 100-41-4 Ethylbenzene 6.19 0.0619 4.9E+00 8.8E+02 1.3E-08 1.4E-05 142-82-5 Heptane, N-8.38 0.0838 -3.5E+02 4.8E-05 110-54-3 Hexane, N-2.09 0.0209 -6.1E+02 6.8E-06 78-93-3 Methyl Ethyl Ketone (2-Butanone)6.42 0.0642 -4.4E+03 2.9E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)0.643 0.00643 -2.6E+03 4.9E-07 75-09-2 Methylene Chloride 1.8 0.018 1.2E+03 5.3E+02 1.5E-11 6.8E-06 91-20-3 ~Naphthalene 4.48 0.0448 3.6E-01 2.6E+00 1.2E-07 3.4E-03 115-07-1 Propylene 12.7 0.127 -2.6E+03 9.7E-06 100-42-5 Styrene 4.46 0.0446 -8.8E+02 1.0E-05 127-18-4 Tetrachloroethylene 39.7 0.397 4.7E+01 3.5E+01 8.4E-09 2.3E-03 108-88-3 Toluene 32.7 0.327 -4.4E+03 1.5E-05 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-3.17 0.0317 -4.4E+03 1.4E-06 71-55-6 Trichloroethane, 1,1,1-1.6 0.016 -4.4E+03 7.3E-07 95-63-6 Trimethylbenzene, 1,2,4-6.51 0.0651 -5.3E+01 2.5E-04 108-67-8 Trimethylbenzene, 1,3,5-1.64 0.0164 -5.3E+01 6.2E-05 106-42-3 Xylene, P-20.1 0.201 -8.8E+01 4.6E-04 108-38-3 Xylene, m-20.1 0.201 -8.8E+01 4.6E-04 95-47-6 Xylene, o-6.38 0.0638 -8.8E+01 1.5E-04 Cumulative:1.4E-06 1.1E-02 All concentrations are in ug/m3 Output Form 3E 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 - Resident Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-13 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 25.4 0.762 -6.5E+03 2.4E-05 71-43-2 Benzene 1.37 0.0411 3.6E-01 6.3E+00 1.1E-07 1.3E-03 75-27-4 Bromodichloromethane 2.28 0.0684 7.6E-02 -9.0E-07 106-99-0 Butadiene, 1,3-1.78 0.0534 9.4E-02 4.2E-01 5.7E-07 2.6E-02 75-15-0 Carbon Disulfide 1.74 0.0522 -1.5E+02 7.2E-05 67-66-3 Chloroform 62.3 1.869 1.2E-01 2.0E+01 1.5E-05 1.8E-02 74-87-3 Chloromethane 0.357 0.01071 -1.9E+01 1.1E-04 110-82-7 Cyclohexane 8.24 0.2472 -1.3E+03 4.0E-05 75-71-8 Dichlorodifluoromethane 3.61 0.1083 -2.1E+01 1.0E-03 100-41-4 Ethylbenzene 6.19 0.1857 1.1E+00 2.1E+02 1.7E-07 1.8E-04 142-82-5 Heptane, N-8.38 0.2514 -8.3E+01 6.0E-04 110-54-3 Hexane, N-2.09 0.0627 -1.5E+02 8.6E-05 78-93-3 Methyl Ethyl Ketone (2-Butanone)6.42 0.1926 -1.0E+03 3.7E-05 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)0.643 0.01929 -6.3E+02 6.2E-06 75-09-2 Methylene Chloride 1.8 0.054 1.0E+02 1.3E+02 5.3E-10 8.6E-05 91-20-3 ~Naphthalene 4.48 0.1344 8.3E-02 6.3E-01 1.6E-06 4.3E-02 115-07-1 Propylene 12.7 0.381 -6.3E+02 1.2E-04 100-42-5 Styrene 4.46 0.1338 -2.1E+02 1.3E-04 127-18-4 Tetrachloroethylene 39.7 1.191 1.1E+01 8.3E+00 1.1E-07 2.9E-02 108-88-3 Toluene 32.7 0.981 -1.0E+03 1.9E-04 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-3.17 0.0951 -1.0E+03 1.8E-05 71-55-6 Trichloroethane, 1,1,1-1.6 0.048 -1.0E+03 9.2E-06 95-63-6 Trimethylbenzene, 1,2,4-6.51 0.1953 -1.3E+01 3.1E-03 108-67-8 Trimethylbenzene, 1,3,5-1.64 0.0492 -1.3E+01 7.9E-04 106-42-3 Xylene, P-20.1 0.603 -2.1E+01 5.8E-03 108-38-3 Xylene, m-20.1 0.603 -2.1E+01 5.8E-03 95-47-6 Xylene, o-6.38 0.1914 -2.1E+01 1.8E-03 Cumulative:1.9E-05 1.4E-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 Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-13 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 1.9E-05 1.4E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 1.4E-06 1.1E-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 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: DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-14 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 33.2 0.332 -2.7E+04 2.4E-06 71-43-2 Benzene 5.34 0.0534 1.6E+00 2.6E+01 3.4E-08 4.1E-04 75-27-4 Bromodichloromethane 3.79 0.0379 3.3E-01 -1.1E-07 106-99-0 Butadiene, 1,3-2.72 0.0272 4.1E-01 1.8E+00 6.7E-08 3.1E-03 75-15-0 Carbon Disulfide 3.73 0.0373 -6.1E+02 1.2E-05 67-66-3 Chloroform 64.6 0.646 5.3E-01 8.6E+01 1.2E-06 1.5E-03 110-82-7 Cyclohexane 8.43 0.0843 -5.3E+03 3.2E-06 75-71-8 Dichlorodifluoromethane 4.12 0.0412 -8.8E+01 9.4E-05 100-41-4 Ethylbenzene 25.9 0.259 4.9E+00 8.8E+02 5.3E-08 5.9E-05 109-99-9 ~Tetrahydrofuran 1.61 0.0161 -1.8E+03 1.8E-06 142-82-5 Heptane, N-40.1 0.401 -3.5E+02 2.3E-04 110-54-3 Hexane, N-2.44 0.0244 -6.1E+02 8.0E-06 78-93-3 Methyl Ethyl Ketone (2-Butanone)19.8 0.198 -4.4E+03 9.0E-06 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)1.38 0.0138 -2.6E+03 1.1E-06 75-09-2 Methylene Chloride 1.26 0.0126 1.2E+03 5.3E+02 1.0E-11 4.8E-06 91-20-3 ~Naphthalene 4.82 0.0482 3.6E-01 2.6E+00 1.3E-07 3.7E-03 115-07-1 Propylene 13.9 0.139 -2.6E+03 1.1E-05 100-42-5 Styrene 4.98 0.0498 -8.8E+02 1.1E-05 127-18-4 Tetrachloroethylene 71.9 0.719 4.7E+01 3.5E+01 1.5E-08 4.1E-03 108-88-3 Toluene 180 1.8 -4.4E+03 8.2E-05 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-2.15 0.0215 -4.4E+03 9.8E-07 71-55-6 Trichloroethane, 1,1,1-2.47 0.0247 -4.4E+03 1.1E-06 95-63-6 Trimethylbenzene, 1,2,4-19.2 0.192 -5.3E+01 7.3E-04 108-67-8 Trimethylbenzene, 1,3,5-6.01 0.0601 -5.3E+01 2.3E-04 106-42-3 Xylene, P-86.1 0.861 -8.8E+01 2.0E-03 108-38-3 Xylene, m-86.1 0.861 -8.8E+01 2.0E-03 95-47-6 Xylene, o-28.1 0.281 -8.8E+01 6.4E-04 Cumulative:1.6E-06 1.9E-02 All concentrations are in ug/m3 Output Form 3E 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 - Resident Soil Gas to Indoor Air Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-14 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 33.2 0.996 -6.5E+03 3.1E-05 71-43-2 Benzene 5.34 0.1602 3.6E-01 6.3E+00 4.5E-07 5.1E-03 75-27-4 Bromodichloromethane 3.79 0.1137 7.6E-02 -1.5E-06 106-99-0 Butadiene, 1,3-2.72 0.0816 9.4E-02 4.2E-01 8.7E-07 3.9E-02 75-15-0 Carbon Disulfide 3.73 0.1119 -1.5E+02 1.5E-04 67-66-3 Chloroform 64.6 1.938 1.2E-01 2.0E+01 1.6E-05 1.9E-02 110-82-7 Cyclohexane 8.43 0.2529 -1.3E+03 4.0E-05 75-71-8 Dichlorodifluoromethane 4.12 0.1236 -2.1E+01 1.2E-03 100-41-4 Ethylbenzene 25.9 0.777 1.1E+00 2.1E+02 6.9E-07 7.5E-04 109-99-9 ~Tetrahydrofuran 1.61 0.0483 -4.2E+02 2.3E-05 142-82-5 Heptane, N-40.1 1.203 -8.3E+01 2.9E-03 110-54-3 Hexane, N-2.44 0.0732 -1.5E+02 1.0E-04 78-93-3 Methyl Ethyl Ketone (2-Butanone)19.8 0.594 -1.0E+03 1.1E-04 108-10-1 Methyl Isobutyl Ketone (4-methyl-2-pentanone)1.38 0.0414 -6.3E+02 1.3E-05 75-09-2 Methylene Chloride 1.26 0.0378 1.0E+02 1.3E+02 3.7E-10 6.0E-05 91-20-3 ~Naphthalene 4.82 0.1446 8.3E-02 6.3E-01 1.8E-06 4.6E-02 115-07-1 Propylene 13.9 0.417 -6.3E+02 1.3E-04 100-42-5 Styrene 4.98 0.1494 -2.1E+02 1.4E-04 127-18-4 Tetrachloroethylene 71.9 2.157 1.1E+01 8.3E+00 2.0E-07 5.2E-02 108-88-3 Toluene 180 5.4 -1.0E+03 1.0E-03 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-2.15 0.0645 -1.0E+03 1.2E-05 71-55-6 Trichloroethane, 1,1,1-2.47 0.0741 -1.0E+03 1.4E-05 95-63-6 Trimethylbenzene, 1,2,4-19.2 0.576 -1.3E+01 9.2E-03 108-67-8 Trimethylbenzene, 1,3,5-6.01 0.1803 -1.3E+01 2.9E-03 106-42-3 Xylene, P-86.1 2.583 -2.1E+01 2.5E-02 108-38-3 Xylene, m-86.1 2.583 -2.1E+01 2.5E-02 95-47-6 Xylene, o-28.1 0.843 -2.1E+01 8.1E-03 Cumulative:2.1E-05 2.4E-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 Risk for Individual Pathways Output Form 1A Version Date: June 2021 Basis: May 2021 EPA RSL Table Site ID: LSG-001 Exposure Unit ID: VMP-14 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-05 2.4E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 1.6E-06 1.9E-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 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: DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator