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Home My WebLink About10061-OPR_VIMS Installation_Building 1013,1014, & 1015_Old Pineville Road Via Email June 30, 2022 NCDEQ – Division of Waste Management Brownfields Program 1646 Mail Service Center Raleigh, NC 27699-1646 Attn: Ms. Carolyn Minnich Re: Vapor Intrusion Mitigation System Installation Completion Report Old Pineville Road – Buildings 1013, 1014, and 1015 Charlotte, North Carolina Brownfields Project No. 10061-06-060 H&H Project No. NVR-010 Dear Carolyn: Please find enclosed the Vapor Intrusion Mitigation System (VIMS) Installation Completion Report prepared for Buildings 1013, 1014, and 1015 at the Old Pineville Road Brownfields property (Brownfields Project No. 10061-06-060) located in Charlotte, Mecklenburg County. Should you have any questions or need additional information, please do not hesitate to contact us at (704) 586-0007. Sincerely, Hart & Hickman, PC Alexis McKenzie, PE Project Engineer Enclosure cc: Mr. Brodie Scanlin, NVR, Inc. (Via Email) Mr. Jared Kimak, NVR, Inc. (Via Email) i https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx VIMS Installation Completion Report Old Pineville Road Old Pineville Road Townhomes – Buildings 1013, 1014, & 1015 Charlotte, North Carolina Brownfields Project No. 10061-06-060 H&H Job No. NVR-010 Table of Contents 1.0 Introduction ..............................................................................................................................1 2.0 VIMS Installation and Influence Testing ..............................................................................3 2.1 VIMS Installation ...................................................................................................................3 2.2 VIMS Influence Testing .........................................................................................................5 3.0 Sub-Slab Soil Gas Assessment Activities ...............................................................................7 3.1 Sub-Slab Soil Gas Sampling...................................................................................................7 3.2 Sub-Slab Soil Gas Sampling Results ......................................................................................8 4.0 Summary and Conclusions ...................................................................................................11 List of Tables Table 1 Summary of Sub-Slab Soil Gas Analytical Data – Building 1013 Table 2 Summary of Sub-Slab Soil Gas Analytical Data – Building 1014 Table 3 Summary of Sub-Slab Soil Gas Analytical Data – Building 1015 List of Figures Figure 1 Site Location Map Figure 2 Site Plan ii https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx List of Appendices Appendix A Historical Data Summary Tables and Sample Location Map Appendix B Product Specification Sheets Appendix C VIMS As-Built Drawings Appendix D VIMS Installation Photographs Appendix E Field Forms and Field Data Appendix F Laboratory Analytical Report Appendix G DEQ Risk Calculator Summary Pages 1 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx VIMS Installation Completion Report Old Pineville Road Old Pineville Road Townhomes – Buildings 1013, 1014, & 1015 Charlotte, North Carolina Brownfields Project No. 10061-06-060 H&H Job No. NVR-010 1.0 Introduction Hart & Hickman, PC (H&H) has prepared this report to document vapor intrusion mitigation system (VIMS) installation, influence testing, and post-construction sub-slab soil gas assessment activities completed at the Old Pineville Road Brownfields property (Brownfields Project No. 10061-06-060) located at 4928 Old Pineville Road and 649 Scholtz Road in Charlotte, Mecklenburg County, North Carolina (Site or subject Site). The redevelopment is known as Old Pineville Townhomes, and is being developed with for-sale residential townhomes by Ryan Homes, an NVR, Inc. (NVR) company. The Site development plan includes construction of fifteen (15) townhome complexes which includes one 3-unit townhome complex, one 4-unit townhome complex, five 7-unit townhome complexes, and eight 8-unit townhome complexes for a total of 106 individual residential townhome units. This report has been prepared for Old Pineville Road Townhomes Buildings 1013, 1014, and 1015 which each have seven units (Units A through G). Each of these buildings are located in the southwestern portion of the Site. A Site location map is provided as Figure 1, and a Site Map depicting the building numbers is provided as Figure 2. Assessment activities were completed at the Site in January 2007 to evaluate subsurface conditions for potential impacts associated with historical on-Site and nearby off-Site operations. Results of groundwater assessment activities indicated that there are not compounds present at concentrations that pose significant risks for structural vapor intrusion at the Site based on a residential use scenario. For ease of reference, the January 2007 data summary tables and a sample location map are included in Appendix A. A Brownfields Agreement between the North Carolina Department of Environmental Quality (DEQ) and John J. Huson was recorded for the Site on January 8, 2008. Land Use Restriction 2 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx No. 4 in the recorded Brownfields Agreement generally states that no residential construction or conversion of any structure to residential use may occur at the Brownfields property without written notification to DEQ and a VIMS has been installed to the satisfaction of a professional engineer licensed in North Carolina. In accordance with the DEQ Brownfields Program Minimum Requirements for Townhome Developments document, and to be in general compliance with the Brownfields Agreement, the prospective developer (PD) elected to install a passive VIMS during construction of each proposed townhome building. H&H prepared a Vapor Intrusion Mitigation Plan (VIMP) and revisions to the VIMP based on DEQ comments. The final VIMP dated January 18, 2021, was approved by DEQ in a letter dated February 15, 2021. The DEQ-approved VIMP includes installation of a passive VIMS in each of the townhome buildings and post-installation sub-slab soil gas sampling. This report documents installation of the VIMS for Buildings 1013, 1014, and 1015. Following installation of the VIMS in other Site townhome buildings and completion of post-construction sampling, additional installation completion reports will be submitted under separate cover. A discussion of VIMS installation activities is provided in Section 2.0, a summary of sub-slab soil gas assessment activities is provided in Section 3.0, and summary and conclusions based on the results of the VIMS installation and soil gas assessment activities are provided in Section 4.0. 3 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx 2.0 VIMS Installation and Influence Testing Buildings 1013, 1014 and 1015 each consist of seven (7) individually owned 3-story townhomes that contain a monolithic slab on-grade foundation and concrete footings below load bearing walls. Each building unit includes a stairwell, garage, and living spaces located on the ground floor of the structure. The ground floor footprint for each townhome unit totals approximately 640 square feet. 2.1 VIMS Installation The DEQ-approved VIMP included installation of Vaporblock® Plus 20 (VBP20) vapor barrier manufactured by Raven Industries (Raven) beneath the concrete slabs of the townhouse buildings. VBP20 is an ASTM-certified 20-mil, multi-layer, chemically resistant vapor barrier, designed to prevent the migration of volatile organic compounds. Technical specifications and installation instructions obtained from Raven for the VBP20 vapor barrier are provided in Appendix B. The vapor barrier was installed per manufacturer installation instructions (Appendix B). Briefly, VBP20 was installed by the construction contractor to cover the ground surface below the entire area of the buildings’ ground floor slabs. The exterior edges of the VBP20 were set under the concrete foundations and were run through the footings at the tenant separation walls. Seams within the building footprint have a minimum 12-inch overlap and were sealed with VaporSeal™ tape. Small puncture holes were sealed with VaporSeal™ tape, and larger holes around utility penetrations were repaired using a patch that overlaps the penetration and then were taped along the seams. The VIMP also included installation of a passive mitigation system beneath the ground-level slab of each building to reduce the potential for vapor intrusion into the townhome units by vapor extraction. Because these units contain ground floor garages adjacent to living spaces, the VIMS and sub-slab vapor extraction treatment was extended below the ground-level garages of the townhomes. Sub-slab vapor extraction in the three buildings is accomplished using soil gas collector mats manufactured by Radon Professional Discount Supply (Radon PDS) which was 4 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx used as an alternative sub-slab vapor collector pipe to the proposed sub-slab slotted PVC piping below the townhome units. The soil gas collector mat is a polystyrene plastic rectangular conduit with a geotextile fabric covering that is 1-inch thick and 12-inches wide specifically designed for collecting soil gas from below a building. The soil gas collector mat was connected to the vertical risers using Radon PDS manufactured riser connector fittings in accordance with the manufacturer installation instructions. Please note that DEQ did not approve this VIMP modification, however the modification was approved by the design engineer (a NC Professional Engineer) because the soil gas collector mat and accessories are an equivalent sub-slab soil gas collector conduit to the PVC piping proposed in the VIMP. In addition, the Radon PDS mat is an acceptable soil gas collector as indicated in the ANSI/AARST 2020 Reducing Radon in New Construction of 1 & 2 Family Dwellings and Townhouses document. The passive VIMS is also enhanced with an Empire turbine ventilator TV04SS (stainless steel) wind driven turbine or Empire Eveco EV04SS (stainless steel) wind siphon stationary ventilator that is designed to promote air exhaust from the conveyance piping. The turbine ventilators were installed on Building 1013 and the Eveco stationary ventilators were installed on Buildings 1014 and 1015. The Empire turbine ventilator and Eveco stationary ventilator were approved by the design engineer as both are similar to the Empire Syphon specified in the VIMP. Each townhome unit contains individual sub-slab collection systems, riser conveyance piping, and a wind-driven ventilator. Product specification sheets for the turbine ventilator fan, Eveco ventilator, and soil gas collector mat are included in Appendix B. To further enhance sub-slab vapor transmission and collection effectiveness, a uniform layer of high permeability stone (clean #57) was installed directly below the concrete slab to allow for air movement beneath the entirety of the slab. Sub-slab vapor collection soil gas mat was installed within the high permeability stone layer. The thickness of the high permeability stone around the mat extends a minimum of 2-inches above the piping and a minimum of 2-inches below the sub- slab piping (approximately 5-inches of gravel around a 1-inch thick collector mat). In areas without sub-slab piping, a minimum thickness of 4 inches of clean stone was installed. 5 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx In the event the system needs to be activated with electric fans, one vacuum monitoring point was installed in each townhome unit to measure the pressure differential between indoor air and the sub-slab, and for collection of sub-slab soil gas samples. The locations of the monitoring points are depicted in the as-built drawings provided in Appendix C. During installation of the VIMS in Buildings 1013, 1014, and 1015, H&H conducted inspections during various phases of construction to confirm the VIMS was installed in accordance with the VIMP. Inspections were completed during the following phases: • after installation of sub-slab horizontal collection system within the gravel base; • following placement and sealing of the vapor barrier and prior to pouring the concrete building slab; and • after installation of vertical exhaust riser pipe and rooftop ventilator installations. Based upon inspections completed during the VIMS installation activities, the VIMS was installed in general accordance with the DEQ-approved VIMP with the exception of the soil gas collector mat modification and substituted ventilator models as discussed above. VIMS details and specifications, and a VIMS as-built drawing which depicts the VIMS layout are included in Appendix C. A representative photographic log of the VIMS installation activities is provided in Appendix D. 2.2 VIMS Influence Testing On January 13, 2022, February 11, 2022 and March 18, 2022, H&H completed influence testing for Buildings 1013, 1014, and 1015, respectively. The influence testing was completed to evaluate system sub-slab communication and to confirm that adequate vacuum can be obtained should an active depressurization system be needed in the future. DEQ considers 4 Pascals (Pa), or 0.016- inches of water column (in-WC), differential pressure the minimum vacuum needed for an active depressurization system to effectively treat potential structural vapor intrusion. H&H connected standard electric radon-style RadonAway RP-265 fans to the vertical riser piping to model an active depressurization system. Differential pressure 6 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx measurements were collected at each vacuum monitoring point using a Dwyer series 475 Mark III Digital manometer (capable of measuring to 0.001 in-WC or 0.25 Pa) to establish baseline conditions prior to use of the electric fans. Following collection of baseline differential pressure measurements, the electric fans were turned on and differential pressure measurements were collected at each monitoring point over varied time intervals. Results of the influence tests are summarized in Table E-1 (Building 1013), Table E-2 (Building 1014), and Table E-3 (Building 1015) included in Appendix E. In every unit, the measured vacuum at the monitoring point was above the minimum 0.016-in-WC. The influence tests demonstrate adequate sub-slab system communication and that sufficient vacuum can easily be achieved below the slab of each unit. The locations of the permanent monitoring points (denoted by MP nomenclature) are shown on Sheet VM-2 (Appendix C). 7 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx 3.0 Sub-Slab Soil Gas Assessment Activities Following successful installation of the VIMS, H&H collected sub-slab soil gas samples for laboratory analysis from each building at the following locations: • Building 1013 – Samples SS-1013-A (Unit A), SS-1013-D (Unit D) and SS-1013-G (Unit G) • Building 1014 – Samples SS-1014-A (Unit A), SS-1014-D (Unit D), and SS-1014-G (Unit G) • Building 1015 – Samples SS-1015-A (Unit A), SS-1015-D (Unit D), SS-1015-G (Unit G). The sub-slab assessment activities were conducted in accordance with the DEQ-approved VIMP and DEQ Division of Waste Management (DWM) Vapor Intrusion Guidance (Guidance) dated March 2018. 3.1 Sub-Slab Soil Gas Sampling On May 5, 2021, H&H collected sub-slab soil gas samples from permanent monitoring points in Buildings 1013, 1014, and 1015. The sampling was performed following VIMS installation activities and approximately two weeks after installation of the rooftop ventilators. The sub-slab soil gas samples were collected from the permanent monitoring points corresponding to the units above and as shown on VM-2 (Appendix C). One duplicate sub-slab soil gas sample (SS-1015- DUP) was collected for quality assurance/quality control (QA/QC) purposes during the event concurrent with the SS-1015-G parent sample. The duplicate sample was collected utilizing a laboratory supplied stainless-steel sampling “T” which allows for the simultaneous collection of two sub-slab soil gas samples from a single location. To collect the sub-slab soil gas samples, Teflon sample tubing was secured to a 2-inch expandable well cap with a sampling port that was secured onto the 2-inch diameter PVC monitoring point. The tubing was connected to an airflow regulator and laboratory-supplied batch-certified 1-liter stainless steel Summa canister. The air flow regulator was preset by the laboratory to collect a soil gas sample at a flow rate no greater than approximately 200 milliliters per minute. 8 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx Prior to sample collection, H&H conducted a leak test at each monitoring point by placing a shroud around the monitoring point, expandable well cap, and sampling train including the Summa canister. The air within the shroud was flooded with helium gas and concentrations were measured with a calibrated helium detector. Helium concentrations within the shroud were maintained at approximately 15%. A GilAir vacuum pump was connected to the sample tubing outside of the shroud and used to purge a minimum of three volumes (monitoring point and sample train) of soil gas into a Tedlar® bag at each sampling point. The helium gas detector was used to measure helium concentrations within the Tedlar bag sample to confirm helium concentrations in the sample were less than 10% of that measured within the shroud. Results of the helium leak checks indicate that helium was not detected in the purge air which indicates short-circuiting at the monitoring points or within the sampling train were not present. Soil gas sampling field forms completed by sampling personnel are included in Appendix E. Following a successful leak check, the air flow regulators were opened to allow collection of the sub-slab soil gas samples. Vacuum in the Summa canisters was monitored during the sampling event to confirm adequate sample volume was collected at each monitoring point location. Upon completion of sample collection, the air flow regulator was closed to the Summa canister. The canisters were labeled with the sample identification, beginning and ending times and pressure measurements, and the requested analysis. The canisters were then placed in laboratory supplied shipping containers and delivered to Pace Analytical Laboratories (Pace) under standard chain of custody protocols for analysis of volatile organic compounds (VOCs) by EPA Method TO-15. 3.2 Sub-Slab Soil Gas Sampling Results The sub-slab soil gas sample analytical results are summarized in Table 1 (Building 1013), Table 2 (Building 1014), and Table 3 (Building 1015). The results were compared to the DEQ DWM Residential Vapor Intrusion Sub-Slab and Exterior Soil Gas Screening Levels (SGSLs) dated January 2022. The laboratory analytical report with chain of custody record is provided as Appendix F. 9 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx The sub-slab soil gas sample analytical results indicate that several compounds were detected in each sample above laboratory method detection limits. With the exception of benzene in Building 1013 and hexachloro-1,3-butadiene in Building 1015, no compounds were detected above the Residential SGSLs. Benzene was detected at a concentration of 50.2 micrograms per cubic meter (µg/m3) in SS-1013-G which exceeds the DEQ DWM Residential Vapor Intrusion SGSL of 12 µg/m3. In addition, hexachloro-1,3-butadiene was detected at an estimated (J-flag) concentration in SS-1015A (4.4 J µg/m3) and the parent and duplicate samples SS-1015-G/SS-1015-DUP (4.4 J/5.1 J µg/m3) above the DEQ DWM Residential Vapor Intrusion SGSL of 4.3 µg/m3. No other compounds were detected at concentrations above DEQ DWM Residential Vapor Intrusion SGSLs in Building 1013 or Building 1015 and no compounds were detected above the Residential SGSLs in any of the sub-slab soil gas samples from Building 1014. The DEQ DWM Vapor Intrusion SGSLs are very conservative and based on a target carcinogenic risk (TCR) for potential carcinogenic risks of 1 x 10-6 and a hazard quotient (HQ) of 0.2 for potential non-carcinogenic risks. The DEQ and EPA acceptable risk level for potential carcinogenic risks is a cumulative lifetime incremental cancer risk (LICR) of 1 x 10-4 or less and the acceptable level for non-carcinogenic risks is a cumulative hazard index (HI) of 1 or less. The HI is the sum of HQs for each target analyte. H&H utilized the DEQ Risk Calculator (January 2022) to confirm there are no potential vapor intrusion risks at unacceptable levels. H&H modeled a worst-case scenario by using the highest concentrations of any compound detected below each building under a residential use scenario to conservatively evaluate potential vapor intrusion risks. The calculated cumulative LICR and HI values are provided in Tables 1, 2, and 3, and copies of the completed DEQ Risk Calculators are provided in Appendix G. As shown in Tables 1, 2, and 3, results of the worst-case risk calculations indicate a calculated cumulative LICR of 4.9 x 10-6 and a HI value of 0.15 for Building 1013, a calculated cumulative LICR of 7.0 x 10-7 and a HI value of 0.16 for Building 1014, and a calculated cumulative LICR of 1.5 x 10-6 and a HI value of 0.12 for Building 1015. These risk calculator results confirm that 10 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx compound concentrations detected below the building slabs do not pose vapor intrusion risks at unacceptable levels within the townhome units at Buildings 1013, 1014, and 1015. 11 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx 4.0 Summary and Conclusions Construction of townhome Buildings 1013, 1014, and 1015 of the Old Pineville Townhomes development has been completed at the Old Pineville Road Brownfields property (Brownfields Project No. 10061-06-060) located at in Charlotte, North Carolina. The Old Pineville Townhomes project included construction of 15 total townhome buildings, which are documented in separate reports. During construction of the buildings, H&H conducted VIMS installation inspections to confirm the system was installed as designed and completed post-installation sub-slab soil gas sampling activities to evaluate efficacy of the system. The VIMS installation inspections and post- installation sampling activities were completed in general accordance with the DEQ-approved VIMP. The PD and/or HOA will be responsible for future maintenance of the VIMS to maintain system effectiveness. A brief summary of the VIMS installation and post-installation soil gas assessment activities is provided below. VIMS Installation VIMS installation has been completed for Buildings 1013, 1014, and 1015 and consists of a passive sub-slab depressurization system with vertical extraction piping to the roof and enhanced with ventilators installed above the building roofline. During installation of the VIMS, H&H personnel, under direction of a North Carolina licensed Professional Engineer, conducted inspections during each stage of installation. Results of the installation inspections indicate that the VIMS was successfully installed in general accordance with the DEQ-approved VIMP. Influence testing for the buildings confirmed efficient sub-slab VIMS communication and that adequate vacuum can be obtained should an active depressurization system be warranted in the future. 12 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/nvr, inc/nvr-010 opr/bldg completion reports/building 1013, 1014, 1015/report/10061-vims installation_building 1013,1014, & 1015_old pineville road.docx Sub-Slab Soil Gas Assessment Following installation of the VIMS and completion of interior construction activities, H&H collected sub-slab soil gas samples from Buildings 1013, 1014, and 1015 to evaluate potential vapor intrusion risks. Laboratory analytical results of the sub-slab soil gas samples indicate that benzene in Building 1013 and hexachloro-1,3-butadiene in Building 1015 were detected in at least one sample above the respective DEQ DWM Residential Vapor Intrusion SGSLs. No other compounds were detected above the Residential SGSLs. H&H utilized the DEQ Risk Calculator (January 2022) to calculate the cumulative carcinogenic and non-carcinogenic risks under a hypothetical worst-case residential-use scenario by utilizing the highest concentration of each compound detected in the buildings sub-slab soil gas samples. The hypothetical worst-case residential use risk calculator results indicate the calculated LICR and HI values for each building are well below DEQ and EPA acceptable levels. Based on the VIMS installation inspections, influence testing, and post-installation sub-slab soil gas sampling results, the VIMS is effectively mitigating potential vapor intrusion risks at the Site. The sub-slab soil gas to indoor air risk calculator results confirm that risks are below acceptable levels. In accordance with the DEQ-approved VIMP, two post-construction sub-slab soil gas sampling events will be completed on an annual basis. Table 1Summary of Sub-Slab Soil Gas Analytical DataOld Pineville RoadOld Pineville Townhomes - Building 1013Charlotte, North CarolinaBrownfields Project No. 10061-06-060H&H Job No. NVR-010Building NumberSample IDSS-1013-A SS-1013-D SS-1013-GDate5/5/2022 5/5/2022 5/5/2022UnitsVOCs (TO-15)Acetone 173 237 J 791NEBenzene 1.9 0.55 J50.2122-Butanone (MEK) 778 1,300 4,150 35,000Carbon Disulfide 3.4 8.0 2.2 4,900Chloroform 1.3<0.38 <0.384.1Chloromethane 2.6 0.69 J 1.8 630Cyclohexane 4.7 5.8 6.3 42,000cis-1,2-Dichloroethylene<0.43 <0.401.1 JNEDichlorodifluoromethane (Freon 12) 3.6 3.7 3.3 700Ethanol 14.8 10.8 10.3NEEthylbenzene 2.1 J 1.5 J 7.7 37Heptane<0.401.5 J 5.0 2,8004-Ethyltoluene 1.1 J<0.971.5 JNE2-Propanol (Isopropanol) 9.8 6.4 8.2 1,400Tetrachloroethylene 2.4<0.6049.1 280Tetrahydrofuran 543 598 1,660 14,000Toluene 5.3 2.3 J 150 35,000Trichloroethylene<0.43 <0.401.2 14Trichlorofluoromethane (Freon 11) 1.9 J<0.48 <0.48 NE1,1,2-Trichlorotriflouroethane 0.71 J 1.1 J<0.6035,0001,2,4-Trimethylbenzene 4.1 1.7 J 1.9 J 4201,3,5-Trimethylbenzene 2.0 J 1.2 J 1.5 J 420m&p-Xylene 4.8 3.3 J 31.9 700o-Xylene 1.6 J 0.96 J 4.2 700DEQ Cumulative Risk Calculator (2)Acceptable Risk LevelsLICR (residential use worst-case)<1 x 10-4Non-Carcinogenic HI (residential use worst-case)<1.0Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Residential Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated January 2022.2) NC DEQ DWM Cumulative Risk Calculator dated January 2022.Compound concentrations are reported in micrograms per cubic meter (μg/m3).Compound concentrations are reported to the laboratory method detection limits.Only those compounds detected in at least one sample are shown in the table above.Laboratory analytical method shown in parentheses.Bold indicates compound concentration exceeds Residential SGSLs.VOCs = Volatile Organic Compounds; NE = Not Established.LICR = Lifetime Incremental Cancer Risk; HI = Hazard Index.Cumulative LICR and HI calculated using the residential worst-case scenario for each building and compared to DEQ and EPA acceptable carcinogenic and non carcinogenic risk levels.J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.ResidentialSGSLs (1)µg/m3Building 10134.9 x 10-60.15https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-010 OPR/Bldg Completion Reports/Building 1013, 1014, 1015/Data Tables/Tables 1A,1B,1C - 1013 1014 1015 Data Tables6/30/2022Table 1 (Page 1 of 1)Hart & Hickman, PC Table 2Summary of Sub-Slab Soil Gas Analytical DataOld Pineville RoadOld Pineville Townhomes - Building 1014Charlotte, North CarolinaBrownfields Project No. 10061-06-060H&H Job No. NVR-010Building NumberSample IDSS-1014-A SS-1014-D SS-1014-GDate5/5/2022 5/5/2022 5/5/2022UnitsVOCs (TO-15)Acetone 592 986 177NEBenzene 1.2 2.6<0.23122-Butanone (MEK) 709 J 4,510 646 35,000Carbon Disulfide 1.6 11.1 24.2 4,900Chloromethane 2.5 2.9 1.5 630Cyclohexane 2.8 J 4.9 6.8 42,000cis-1,2-Dichloroethylene<0.4211.6<0.40 NEtrans-1,2-Dichloroethylene 1.8<0.33 <0.35280Dichlorodifluoromethane (Freon 12) 3.4 3.4 3.6 700Ethanol 14.6 26.9 13.5NEEthylbenzene 2.2 J 3.8 J 1.5 J 37Heptane 1.8<0.361.7 2,800Methylene chloride<1.31.5 J<1.23,4002-Propanol (Isopropanol) 18.7 12.9 28.7 1,400Styrene<0.831.6 J<0.797,000Tetrachloroethylene 0.83 J 16.8 0.70 J 280Tetrahydrofuran 602 1,850 241 14,000Toluene 7.8 9.9 3.4 J 35,000Trichloroethylene 4.1 5.3<0.40141,1,2-Trichlorotrifluoroethane 0.67 J 0.76 J 0.88 J 35,0001,2,4-Trimethylbenzene 2.0 J 5.3 1.5 J 4201,3,5-Trimethylbenzene 1.4 J 2.0<0.60420m&p-Xylene 6.2 7.8 3.1 J 700o-Xylene 2.0 2.7 1.0 J 700DEQ Cumulative Risk Calculator (2)Acceptable Risk LevelsLICR (residential use worst-case)<1 x 10-4Non-Carcinogenic HI (residential use worst-case)<1.0Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Residential Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated January 2022.2) NC DEQ DWM Cumulative Risk Calculator dated January 2022.Compound concentrations are reported in micrograms per cubic meter (μg/m3).Compound concentrations are reported to the laboratory method detection limits.Only those compounds detected in at least one sample are shown in the table above.Laboratory analytical method shown in parentheses.VOCs = Volatile Organic Compounds; NE = Not Established.LICR = Lifetime Incremental Cancer Risk; HI = Hazard Index.Cumulative LICR and HI calculated using the residential worst-case scenario for each building and compared to DEQ and EPA acceptable carcinogenic and non carcinogenic risk levels.J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.0.16Building 1014ResidentialSGSLs (1)µg/m37.0 x 10-7https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-010 OPR/Bldg Completion Reports/Building 1013, 1014, 1015/Data Tables/Tables 1A,1B,1C - 1013 1014 1015 Data Tables6/30/2022Table 2 (Page 1 of 1)Hart & Hickman, PC Table 3Summary of Sub-Slab Soil Gas Analytical DataOld Pineville RoadOld Pineville Townhomes - Building 1015Charlotte, North CarolinaBrownfields Project No. 10061-06-060H&H Job No. NVR-010Building NumberSample IDSS-1015-A SS-1015-DDate5/5/2022 5/5/2022UnitsVOCs (TO-15)Acetone 391 47.1 662 709NEBenzene 0.74 0.31 J<0.22 <0.22122-Butanone (MEK) 1,300 67.4 2,130 1,990 35,000Carbon Disulfide 4.7<0.281.0 J 4.6 4,900Chloromethane 1.2 1.0 0.81 1.3 630Cyclohexane 4.4 3.4 J 2.5 J 2.0 J 42,000Dichlorodifluoromethane (Freon 12) 2.4 2.8 2.8 2.7 700Ethanol 11.5 10.9 12.6 11.1NE4-Ethyltoluene 2.1 J<1.0 <0.90 <0.90 NEHexachloro-1,3-butadiene4.4 J<2.64.4 J 5.1 J4.32-Hexanone<0.952.7 J<0.84 <0.842102-Propanol (Isopropanol) 13.9 9.7 54.8 48.1 1,400Tetrachloroethylene 2.5<0.633.1 1.1 J 280Tetrahydrofuran 587 26.7 2,910 2,580 14,000Toluene 2.3 1.6 J 1.1 J 1.1 J 35,000Trichloroethylene 1.6 1.5 3.1 1.3 14Trichlorofluoromethane (Freon 11) 1.6 J 2.2 J 1.9 J 1.8 JNE1,1,2-Trichlorotrifluoroethane<0.620.63 J 0.73 J 0.69 J 35,0001,2,4-Trimethylbenzene 3.7<0.76 <0.67 <0.674201,3,5-Trimethylbenzene 2.3<0.62 <0.55 <0.55420m&p-Xylene 4.3<1.4 <1.22.5 J 700o-Xylene 2.1<0.58 <0.51 <0.51700DEQ Cumulative Risk Calculator (2)Acceptable Risk LevelsLICR (residential use worst-case)<1 x 10-4Non-Carcinogenic HI (residential use worst-case)<1.0Notes:1) NC Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Residential Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated January 2022 .2) NC DEQ DWM Cumulative Risk Calculator dated January 2022.Compound concentrations are reported in micrograms per cubic meter (μg/m3).Compound concentrations are reported to the laboratory method detection limits.Only those compounds detected in at least one sample are shown in the table above.Laboratory analytical method shown in parentheses.Bold indicates compound concentration exceeds Residential SGSLs.VOCs = Volatile Organic Compounds; NE = Not Established.LICR = Lifetime Incremental Cancer Risk; HI = Hazard Index.Cumulative LICR and HI calculated using the residential worst-case scenario for each building and compared to DEQ and EPA acceptable carcinogenic and non carcinogenic risk levels.J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration.ResidentialSGSLs (1)µg/m3Building 10151.5 x 10-60.12SS-1015-G / SS-1015-DUP5/5/2022https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-010 OPR/Bldg Completion Reports/Building 1013, 1014, 1015/Data Tables/Tables 1A,1B,1C - 1013 1014 1015 Data Tables6/30/2022Table 3 (Page 1 of 1)Hart & Hickman, PC SITE LOCATION MAP OLD PINEVILLE HOMES 4928 OLD PINEVILLE ROAD CHARLOTTE, NORTH CAROLINA DATE: JOB NO: REVISION NO: FIGURE NO: 6-18-2021 0 1NVR-010 0 2000 4000 APPROXIMATE SCALE IN FEET N U.S.G.S. QUADRANGLE MAP 7.5 MINUTE SERIES (TOPOGRAPHIC) 2923 S. Tryon Street, Suite 100 Charlotte, NC 28203 704.586.0007(p) 704.586.0373(f) CHARLOTTE WEST, NORTH CAROLINA 1996 SITE REVISION NO. 0 JOB NO. NVR-010 DATE: 6-21-21 FIGURE NO. 2 OLD PINEVILLE ROAD 4928 OLD PINEVILLE ROAD CHARLOTTE, NORTH CAROLINA SITE MAP 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology LEGEND SITE PROPERTY BOUNDARY PARCEL BOUNDARY PROPOSED BUILDING FOOTPRINT UNIT NUMBERF F F F F F F F F F F F F F H G E D C B A H G E D C B A H G E D C B A H G E D C B A H G E D C B A H G E D C B A H G E D C B A H G E D C B A A B C A B C D A B C D E G A B C D E G A B C D E G A B C D E G A B C D E G ANSTON DRI V E TODDWICK P L A C EBIRCHAM DRIVETHORNDALE LANESCHLOTZ RO A D OLD PINEVILLE ROADNOTES: 1.AERIAL IMAGERY OBTAINED FROM MECKLENBURG COUNTY GIS (2021). 2.DEVELOPMENT PLAN BASED ON SITE PLAN PROVIDED BY BOHLER ENGINEERING (STAMPED 12/24/19). BUILDING 1001 BUILDING 1002 BUILDING 1003 BUILDING 1007 BUILDING 1011 BUILDING 1006 BUILDING 1005 BUILDING 1004 BUILDING 1008 BUILDING 1009 BUILDING 1010 BUILDING 1015 BUILDING 1014 BUILDING 1013 BUILDING 1012 M:\AAA_DRAFTING\NVR\NVR-010-Old Pineville Road\Site Plan.dwg, FIG 2, 6/21/2021 11:19:59 AM, SVincent Appendix A Historical Data Summary Tables and Sample Location Maps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lements in North American Soils E\'UDJXQDQG&KHNLUL%DFNJURXQG&GDQG$JFRQFHQWUDWLRQVZHUHWDNHQIURP6RXWKHDVWHUQDQG&RQWHUPLQRXV86VRLOV6RLOFRQFHQWUDWLRQVDUHUHSRUWHGLQPLOOLJUDPVSHUNLORJUDPPJNJ&RPSRXQGFRQFHQWUDWLRQVDUHUHSRUWHGWRWKHODERUDWRU\PHWKRGGHWHFWLRQOLPLWV$VLGHIURPPHWDOVRQO\WKRVHFRPSRXQGVGHWHFWHGLQDWOHDVWRQHVDPSOHDUHVKRZQDERYH/DERUDWRU\DQDO\WLFDOPHWKRGVDUHVKRZQLQSDUHQWKHVHV92&V YRODWLOHRUJDQLFFRPSRXQGV692&V VHPLYRODWLOHRUJDQLFFRPSRXQGVIWEJV IHHWEHORZJURXQGVXUIDFH%5/ EHORZODERUDWRU\UHSRUWLQJOLPLW1( 1RW(VWDEOLVKHG1' 1RQ'HWHFW16 1RW6SHFLILHG1$ 1RW$QDO\]HG 1RW$SSOLFDEOH- FRPSRXQGZDVGHWHFWHGDERYHWKHODERUDWRU\PHWKRGGHWHFWLRQOLPLWEXWEHORZWKHODERUDWRU\UHSRUWLQJOLPLWUHVXOWLQJLQDQHVWLPDWHGFRQFHQWUDWLRQ6RLODQGVHGLPHQWVDPSOHVFROOHFWHGE\(&6GXULQJ3KDVH,,(6$DFWLYLWLHV6DPSOH,'6DPSOH/RFDWLRQ3KDVH,,(6$(&66WDLQ'UDLQDJH'LWFK'UDLQDJH'LWFK 6WDLQ%XLOGOLQJ5HVLGHQWLDO365*V;ϭͿ,QGXVWULDO&RPPHUFLDO365*V;ϭͿ6LWHVSHFLILF%DFNJURXQG0HWDOVLQ6RLO5HJLRQDO%DFNJURXQG0HWDOVLQ6RLO;ϮͿ%DFNJURXQG%XLOGLQJ'RZQJUDGLHQW8SJUDGLHQW6RXWKHUQ%RXQGDU\6HGLPHQWDW6FKROW]5RDG2XWIDOO^͗ͰͲDĂƐƚĞƌWƌŽũĞĐƚƐͰŽƵůĞǀĂƌĚZĞĂůƚǇƐƚĂƚĞĚǀŝƐŽƌƐ;KhͿͰKhͲϬϭϮϰϵϮϴKůĚWŝŶĞǀŝůůĞZĚͰDWͰϰϵϮϴKůĚWŝŶĞǀŝůůĞZŽĂĚDWĂƚĂdĂďůĞƐϭϭͬϲͬϮϬϭϵ7DEOH3DJHRIHart & Hickman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ȝ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͗ͰͲDĂƐƚĞƌWƌŽũĞĐƚƐͰŽƵůĞǀĂƌĚZĞĂůƚǇƐƚĂƚĞĚǀŝƐŽƌƐ;KhͿͰKhͲϬϭϮϰϵϮϴKůĚWŝŶĞǀŝůůĞZĚͰDWͰϰϵϮϴKůĚWŝŶĞǀŝůůĞZŽĂĚDWĂƚĂdĂďůĞƐϭϭͬϲͬϮϬϭϵ7DEOH3DJHRIHart & Hickman, PC REVISION NO. 0 JOB NO. NVR-010 DATE: 11-7-19 FIGURE NO. A-1 OLD PINEVILLE ROAD 4928 OLD PINEVILLE ROAD CHARLOTTE, NORTH CAROLINA SAMPLE LOCATION MAP LEGEND BROWNFIELDS PROPERTY BOUNDARY DRAINAGE DITCH LYNX LIGHT RAIL HISTORICAL SOIL BORING HISTORICAL TEMPORARY GROUNDWATER MONITORING WELL HISTORICAL SURFACE WATER SAMPLE LOCATION HISTORICAL SEDIMENT SAMPLE LOCATION SB-1 SB-2 BG SW-2 SW-1 TW-3 TW-4 TW-1 TW-2 SB-4 SB-3 SB-6 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 GeologyOLD PINEVILLE ROADSCHOLTZ RO A D NOTES: 1. HISTORICAL SOIL, GROUNDWATER, SEDIMENT, AND SURFACE WATER SAMPLES WERE COLLECTED BY ECS DURING PHASE II ESA ACTIVITES ON JANUARY 29-31, 2007. FORMER METAL WAREHOUSE OUTFALL S:\AAA-Master Projects\NVR, Inc\NVR-010 OPR\Figures\Site and Surround Map_R1.dwg, 9/2/2020 9:29:31 AM, amckenzie Appendix B Product Specifications PRODUCT PART # VaporBlock® Plus™ 20 ................................................................ VBP20 UNDER-SLAB VAPOR / GAS BARRIER Under-Slab Vapor/Gas Retarder © 2018 RAVEN INDUSTRIES INC. All rights reserved. VAPORBLOCK® PLUS™VBP20 PRODUCT DESCRIPTION VaporBlock® Plus™ is a seven-layer co-extruded barrier made using high quality virgin-grade polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission. VaporBlock® Plus™ 20 is more than 100 times less permeable than typical high-performance polyethylene vapor retarders against Methane, Radon, and other harmful VOCs. Tested and verified for unsurpassed protection against BTEX, HS, TCE, PCE, methane, radon, other toxic chemicals and odors. VaporBlock® Plus™ 20 multi-layer gas barrier is manufactured with the latest EVOH barrier technology to mitigate hazardous vapor intrusion from damaging indoor air quality, and the safety and health of building occupants. VBP20 is one of the most effective underslab gas barriers in the building industry today far exceeding ASTM E-1745 (Plastic Water Vapor Retarders Used in Contact with Soil or Granular Fill Under Concrete Slabs) Class A, B and C requirements. Available in a 20 (Class A) mil thicknesses designed to meet the most stringent requirements. VaporBlock® Plus™ 20 is produced within the strict guidelines of our ISO 9001 Certified Management System. PRODUCT USE VaporBlock® Plus™ 20 resists gas and moisture migration into the building envelop when properly installed to provide protection from toxic/harmful chemicals. It can be installed as part of a passive or active control system extending across the entire building including floors, walls and crawl spaces. When installed as a passive system it is recommended to also include a ventilated system with sump(s) that could be converted to an active control system with properly designed ventilation fans. VaporBlock® Plus™ 20 works to protect your flooring and other moisture-sensitive furnishings in the building’s interior from moisture and water vapor migration, greatly reducing condensation, mold and degradation. SIZE & PACKAGING VaporBlock® Plus™ 20 is available in 10’ x 150’ rolls to maximize coverage. All rolls are folded on heavy-duty cores for ease in handling and installation. Other custom sizes with factory welded seams are available based on minimum volume requirements. Installation instructions and ASTM E-1745 classifications accompany each roll. APPLICATIONS Radon Barrier Methane Barrier VOC Barrier Brownfields Barrier Vapor Intrusion Barrier Under-Slab Vapor Retarder Foundation Wall Vapor Retarder VaporBlock® Plus™ is a seven-layer co-extruded barrier made using high quality virgin-grade polyethylene and EVOH resins to provide unmatched impact strength as well as superior resistance to gas and moisture transmission. VaporBlock® Plus™ Placement All instructions on architectural or structural drawings should be reviewed and followed. Detailed installation instructions accompany each roll of VaporBlock® Plus™ and can also be located at www.ravenefd.com. ASTM E-1643 also provides general installation information for vapor retarders. VAPORBLOCK® PLUS™ 20 PROPERTIES TEST METHOD IMPERIAL METRIC AppeArAnce White/Gold Thickness, nominAl 20 mil 0.51 mm WeighT 102 lbs/MSF 498 g/m² clAssificATion ASTM E 1745 CLASS A, B & C ³ Tensile sTrengTh ASTM E 154Section 9(D-882)58 lbf 102 N impAcT resisTAnce ASTM D 1709 2600 g permeAnce (neW mATeriAl) ASTM E 154Section 7ASTM E 96Procedure B 0.0098 Perms grains/(ft²·hr·in·Hg) 0.0064 Perms g/(24hr·m²·mm Hg) permeAnce (AfTer condiTioning) (sAme meAsuremenT As Above permeAnce) ASTM E 154Section 8, E96Section 11, E96Section 12, E96Section 13, E96 0.00790.00790.00970.0113 0.00520.00520.00640.0074 WvTr ASTM E 96Procedure B 0.0040 grains/hr-ft²0.0028 gm/hr-m² benzene permeAnce See Note ⁶1.13 x 10-¹⁰ m²/sec or 3.62 x 10-¹³ m/s Toluene permeAnce See Note ⁶1.57 x 10-¹⁰ m²/sec or 1.46 x 10-¹³ m/s eThylbenzene permeAnce See Note ⁶1.23 x 10-¹⁰ m²/sec or 3.34 x 10-¹⁴ m/s m & p-Xylenes permeAnce See Note ⁶1.17 x 10-¹⁰ m²/sec or 3.81 x 10-¹⁴ m/s o-Xylene permeAnce See Note ⁶1.10 x 10-¹⁰ m²/sec or 3.43 x 10-¹⁴ m/s hydrogen sulfide See Note 9 1.92E-⁰⁹ m/s TrichloroeThylene (Tce) See Note ⁶7.66 x 10-¹¹ m²/sec or 1.05 x 10-¹⁴ m/s perchloroeThylene (pce)See Note ⁶7.22 x 10-¹¹ m²/sec or 1.04 x 10-¹⁴ m/s rAdon diffusion coeffiecienT K124/02/95 < 1.1 x 10-13 m2/s meThAne permeAnce ASTM D 1434 3.68E-¹² m/sGas Transmission Rate (GTR):0.32 mL/m²•day•atm mAXimum sTATic use TemperATure 180° F 82° C minimum sTATic use TemperATure - 70° F - 57° C UNDER-SLAB VAPOR / GAS BARRIER VAPORBLOCK® PLUS™VBP20 © 2018 RAVEN INDUSTRIES INC. All rights reserved. Scan QR Code to download current technical data sheets via the Raven website. Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.RavenEFD.com 061318 EFD 1125 RAVEN ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: +1 (605) 335-0174 • TF: +1 (800) 635-3456 efdsales@ravenind.comwww.ravenefd.com ³ Tests are an average of machine and transverse directions.5 Raven Industries performs seam testing at 20” per minute.6 Aqueous Phase Film Permeance. Permeation of Volatile Organic Compounds through EVOH Thin Film Membranes and Coextruded LLDPE/EVOH/ LLDPE Geomembranes, McWatters and Rowe, Journal of Geotechnical and Geoenvironmental Engineering© ASCE/ September 2015. (Permeation is the Permeation Coefficient adjusted to actual film thickness - calculated at 1 kg/m³.) The study used to determine PCE and TCE is titled: Evaluation of diffusion of PCE & TCE through high performance geomembranes by Di Battista and Rowe, Queens University 8 Feb 2018.9 The study used to determine diffusion coefficients is titled: Hydrogen Sulfide (H₂S) Transport through Simulated Interim Covers with Conventional and Co-Extruded Ethylene-Vinyl Alcohol (EVOH) Geomembranes. INSTALLATION GUIDELINES - With VaporSeal™ Tape VaporSeal™ 4” Tape VaporSeal™ 4” Tape Optional Butyl Seal 2-Sided Tape Gas Barrier Applications Elements of a moisture/gas-resistant floor system. General illustration only.(Note: This example shows multiple options for waterstop placement. VaporSeal™ 4” Tape VaporSeal™ 4” Tape Optional Butyl Seal 2-Sided Tape Gas Barrier Applications Fig. 2: VaporBlock® Plus™ Overlap Joint Sealing Methods Fig. 1: VaporBlock® Plus™ Overlapping Roll-out Method Please Note: Read these instructions thoroughly before installation to ensure proper use of VaporBlock® Plus™. ASTM E 1465, ASTM E 2121 and, ASTM E 1643 also provide valuable information regarding the installation of vapor / gas barriers. When installing this product, contractors shall conform to all applicable local, state and federal regulations and laws pertaining to residential and commercial building construction. • When VaporBlock® Plus™ gas barrier is used as part of an active control system for radon or other gas, a ventilation system will be required. • If designed as a passive system, it is recommended to install a ventilation system that could be converted to an active system if needed. Materials List:VaporBlock® Plus™ Vapor / Gas BarrierVaporSeal™* 4” Seaming TapeVaporSeal™* 12” Seaming/Repair TapeButyl Seal 2-Sided TapeVaporBoot Plus Pipe Boots 12/Box (recommended)VaporBoot Tape (optional)POUR-N-SEAL™ (optional)1” Foam Weather Stripping (optional)Mako® Screed Supports (optional) VAPORBLOCK® PLUS™ PLACEMENT 1.1. Level and tamp or roll granular base as specified. A base for a gas-reduction system may require a 4” to 6” gas permeable layer of clean coarse aggregate as specified by your architectural or structural drawings after installation of the recommended gas collection system. In this situation, a cushion layer consisting of a non-woven geotextile fabric placed directly under VaporBlock® Plus™ will help protect the barrier from damage due to possible sharp coarse aggregate. 1.2. Unroll VaporBlock® Plus™ running the longest dimension parallel with the direction of the pour and pull open all folds to full width. (Fig. 1) 1.3. Lap VaporBlock® Plus™ over the footings and seal with Raven Butyl Seal tape at the footing-wall connection. Prime concrete surfaces, when necessary, and assure they are dry and clean prior to applying Raven Butyl Seal Tape. Apply even and firm pressure with a rubber roller. Overlap joints a minimum of 6” and seal overlap with 4” VaporSeal™ Tape. When used as a gas barrier, overlap joints a minimum of 12” and seal in-between overlap with an optional 2-sided Raven Butyl Seal Tape. Then seal with 4” VaporSeal™ Tape centered on the overlap seam. (Fig. 2) Page 1 of 4 Top original diagram and figure #1 were reprinted with permission by the Portland Cement Association.Reference: Kanare, Howard M., Concrete Floors and Moisture, EB119, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, USA, 2008, 176 pages. 1.4. Seal around all plumbing, conduit, support columns or other penetrations that come through the VaporBlock® Plus™ membrane. 1.4a. Method 1: Pipes four inches or smaller can be sealed with Raven VaporBoot Plus preformed pipe boots. VaporBoot Plus preformed pipe boots are formed in steps for 1”, 2”, 3” and 4” PVC pipe or IPS size and are sold in units of 12 per box (Fig. 3 & 5). Pipe boots may also be fabricated from excess VaporBlock® Plus™ membrane (Fig. 4 & 6) and sealed with VaporBoot Tape or VaporSeal™ Tape (sold separately). 1.4b. Method 2: To fabricate pipe boots from VaporBlock® Plus™ excess material (see Fig. 4 & 6 for A-F): A) Cut a square large enough to overlap 12” in all directions. B) Mark where to cut opening on the center of the square and cut four to eight slices about 3/8” less than the diameter of the pipe. C) Force the square over the pipe leaving the tightly stretched cut area around the bottom of the pipe with approximately a 1/2” of the boot material running vertically up the pipe. (no more than a 1/2” of stretched boot material is recommended) D) Once boot is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in between the two layers. Secure boot down firmly over the membrane taking care not to have any large folds or creases. E) Use VaporBoot Tape or VaporSeal™ Tape to secure the boot to the pipe. VaporBoot Tape (option) – fold tape in half lengthwise, remove half of the release liner and wrap around the pipe allowing 1” extra for overlap sealing. Peel off the second half of the release liner and work the tape outward gradually forming a complete seal. VaporSeal™ Tape (option) - Tape completely around pipe overlapping the VaporBlock® Plus™ square to create a tight seal against the pipe. F) Complete the process by taping over the boot perimeter edge with VaporSeal™ Tape to create a monolithic membrane between the surface of the slab and gas/moisture sources below and at the slab perimeter. (Fig. 4 & 6) Preformed Pipe Boot Square Material Pipe Boot Fig. 3 SINGLE PENETRATION PIPE BOOT INSTALLATION Fig. 5 Fig. 6 1. Cut a square of VaporBlock® Plus™ barrier to extend at least 12” from the pipe in all directions. 2. Cut four to eight slices about 3/8” less than the diameter of the pipe. 5. Use Raven VaporBoot or VaporSeal™ Tape and overlap 1” at the seam. 4. Tape over the boot perimeter edge with VaporSeal™ Tape. 1. Cut out one of the preformed boot steps (1” to 4”). 2. Tape the underside boot perimeter with 2-sided Butyl Seal Tape. 3. Force the boot over pipe and press tape firmly in place. 4. Use VaporSeal™ Tape to secure boot to the pipe. 5. Tape around entire boot edge with VaporSeal™ Tape. VaporBoot Flexible Tapeor VaporSeal™ 4” TapeVaporSeal™ 4” Tape VaporBlock® Plus™Material VaporSeal™ 4” Tape Raven Butyl Seal2-Sided Tape Raven Butyl Seal2-Sided Tape VaporBoot PlusPreformed Boot 12”(minimum) 3. Force over pipe and tape the underside boot perimeter to existing barrier with 2-sided Butyl Seal Tape. Fig. 4 Page 2 of 4 Original figure #4 diagram is reprinted with permission by the Portland Cement Association.Reference: Kanare, Howard M., Concrete Floors and Moisture, EB119, Portland Cement Association, Skokie, Illinois, and National Ready Mixed Concrete Association, Silver Spring, Maryland, USA, 2008, 176 pages.Method 1 Method 2 VaporSeal™4” Tape VaporBoot PlusPerformed Boot Raven Butyl Seal 2-sided Tape Raven Butyl Seal 2-sided Tape 1.5. Sealing side-by-side multiple penetrations (option 1); A) Cut a patch large enough to overlap 12” in all directions (Fig. 7) of penetrations. B) Mark where to cut openings and cut four to eight slices about 3/8” less than the diameter of the penetration for each. C) Force patch material over penetration to achieve a tight fit and form a lip. D) Once patch is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in-between the two layers. (Fig. 8) E) After applying Raven Butyl Seal Tape between the patch and membrane, tape around each of the penetrations and the patch with VaporSeal™ 4” tape. (Fig. 9) For additional protection apply POUR-N-SEAL™ or an acceptable polyurethane elastomeric sealant around the penetrations. (Fig. 10) Fig. 7 Fig. 8 Fig. 9 Fig. 10 MULTIPLE PENETRATION PIPE BOOT INSTALLATION Fig. 6 Cut a patch large enough to overlap 12” in all directions and slide over penetrations (Make openings as tight as possible.) Once the overlay patch is positioned, seal the perimeter to the membrane by applying 2-sided Raven Butyl Seal Tape in-between the two layers. After applying Raven Butyl Seal Tapebetween the patch and membrane, tape around the perimeter of the penetration and the patch with VaporSeal™ 4” Tape. For additional protection apply POUR-N-SEAL™ or an acceptable polyurethane elastomeric sealant around the penetrations. VaporSeal™ 4” Tape VaporSeal™ 4” Tape Page 3 of 4 Option 1 Raven Butyl Seal 2-sided Tape 1.6. POUR-N-SEAL™ method of sealing side-by-side multiple penetrations (option 2); A) Install the vapor barrier as closely as possible to pipe penetrations to minimize the amount of POUR-N-SEAL™ necessary to seal around all penetrations. B) Once barrier is in place, remove soil or other particles with a dry cloth or a fine broom to allow for improved adhesion to the POUR-N-SEAL™ liquid. C) Create a dam around the penetration area approximately 2” away from the pipe or other vertical penetrations by removing the release liner from the back of a 1” weather stripping foam and adhere to the vapor barrier. Form a complete circle to contain the POUR-N-SEAL™ materials (Fig. 11). D) Once mixed, pour contents around the pipe penetrations. If needed, a brush or a flat wooden stick can be used to direct the sealant completely around penetrations creating a complete seal (Fig. 12-13). E) DO NOT leave excess POUR-N-SEAL™ in plastic container for longer than the time it takes to pour sealant. Fig. 12 Fig. 13 Fig. 11 Option 2 VAPORBLOCK® PLUS™ REPAIR INSTRUCTIONS 1.7. Proper installation requires all holes and openings are repaired prior to placing concrete. When patching small holes, simply cut a 12” long piece of 12” wide VaporSeal™ tape. Remove release liner and center over the opening. Apply pressure to create a seal (Fig. 14-15). 1.8. When installing VaporBlock® Plus™ around pipe penetrations, vertical columns, electrical ducts and other obstructions, you will find it necessary to cut it to the nearest outside edge. This cut can be easily sealed with 12” wide VaporSeal™ tape, by simply centering it over the cut, 6” on either side. Once the tape is placed correctly, apply pressure to assure a complete seal (Fig. 16). Reminder Note: All holes or penetrations through the membrane will need to be patched with 12” VaporSeal™ Tape. Fig. 14 Page 4 of 5 Fig. 15 2.1. When installing reinforcing steel and utilities, in addition to the placement of concrete, take precaution to protect VaporBlock® Plus™. Carelessness during installation can damage the most puncture–resistant membrane. Sheets of plywood cushioned with geotextile fabric temporarily placed on VaporBlock® Plus™ provide for additional protection in high traffic areas including concrete buggies. 2.2. Use only brick-type or chair-type reinforcing bar supports to protect VaporBlock® Plus™ from puncture. 2.3. Avoid driving stakes through VaporBlock® Plus™. If this cannot be avoided, each individual hole must be repaired per section 1.7. 2.4. To avoid penetrating VaporBlock® Plus™ when installing screed supports, utilize non-penetrating support, such as the Mako® Screed Support System (Fig. 17). Avoid driving stakes through VaporBlock® Plus™. If this cannot be avoided, each individual hole must be repaired per figures 14-15. 2.5. If a cushion or blotter layer is required in the design between VaporBlock® Plus™ and the slab, additional care should be given if sharp crushed rock is used. Washed rock will provide less chance of damage during placement. Care must be taken to protect blotter layer from precipitation before concrete is placed. VaporBlock® Plus™ Gas & Moisture Barrier can be identified on site as gold/white in color printed in black ink with following logo and classification listing (Fig. 18) Page 5 of 5 VaporBlock® Plus™ Gas & Moisture Barrier Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. RAVEN INDUSTRIES MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at wwww.RavenEFD.com ENGINEERED FILMSP.O. Box 5107 Sioux Falls, SD 57117-5107Ph: +1 (605) 335-0174 • TF: +1 (800) 635-3456 efdsales@ravenind.comwww.ravenefd.com 020316 EFD 1127 VAPORBLOCK® PLUS™ PROTECTION Fig. 16 Fig. 18 Fig. 17 * Patent Pending © Raven 2016. All Rights Reserved. SOIL GAS COLLECTOR MAT Installation Guide Radon Ready New Construction Time-saving, low-cost solution Easy Installation Reduce Liability! Used in all 50 states and Internationally Complian under multiple codes: AARST-ANSI, ASTM, IRC Appendix F, EPA, HUD, and more! Simple, modern solutions for soil gases: radon, vapor, and VOCs www.RadonMat.comPhotos, videos, & more @ MADE IN THE USA SOIL GAS COLLECTOR MAT FOR RADON READY NEW CONSTRUCTION According to the US EPA’s model stan-dards for radon control systesm in new building construction, a means for col-lecting soil gas should be installed be-neath the slab. More and more mitigators and buildiers are using PDS’ soil gas collector mat because its installation does not entail any special coordination with plumb-ers or other site contractors. Low pro-file mat saves time as it removes the need for trenching. Just lay radon mat down around the inside perimeter of the foundation, secure it with spikes or landscaping staples, and pour the con-crete. SGC mat is superior to other mat sys-tems because of its thickness and it has a geotextile fabric cloth surround-ing the entire mat material. This fea-ture eliminates the ened to lay a plas-tic barrier or sheet on top of the mat to protect the matrix. Using plastic sheeting can cause concrete cracking due to differential dewatering. The full fabric design greatly enhances both the installation as well as the quality of the concrete slab. When SGC mat is in-stalled below the slab, you’re providing an airspace that intercepts radon--and other soil gases and vapors--before it seeps into the building through the slab. SGC mat also works well as a soil gas collector beneath crawlspace bar-rier due to its low-profile. WHY & HOW IT WORKS The matting is a one inch high by twelve inch wide matrix enveloped in a geotextile filter fabric. 90% of the geomatrix is airspace, which means soil gas has room to move to the col-lection point. This creates incredible pressure field extension for post con-struction system activation. The mat can support concrete without com-pressing, yet is extremely lightweight and easy to handle. This system allows for radon to flow through teh filter fabric and into the airspace. The airspace does not clog because the filter fabric retains teh underlying gravel and soil. The natural airflow through the mat then channels the radon to the T riser to pipe connec-tion. From there, hazardous gas can be vented safely through the roof of the building. Another key element of a soil gas col-lection system is attaching the 4” riser to the mat, such that airflow is not restricted at this critical juncture. The soil gas T riser is unique as it has three ports, two redundant mat entries and one PVC connection to outside air. This unique fitting connects all three sides without special connections or fittings. common duct tape and caulk does the trick. 2 ADVANTAGES NO TRENCHINGNO BACKFILLNO VAPOR BARRIER* It’s called SOIL gas mat for a reason, Place directly on soil or substrate. Low-profile (1” thick) gas mat does not require trenching. SAFETY DATA & PRODUCT DATA SHEETS AVAILABLE @ www.RADONMAT.com 3 INSTALLATION INSTRUCTIONS 1. Begin work on the sub grade (soil or gravel) after the final preparation and before the concrete is poured. Start with T-Riser(s) and work out to ensure smooth mat placement. Position the T-Riser(s) in appropriate location(s) and nail down with a 12” steel nail (T Nail) through precut center hole. 2. Slide mat into flat openings on either end of T-riser with a portion of the fab- ric around the outside. Tape the fabric to the outside of the T-Riser with duct tape and staple mat to the ground with landscape staples to ensure soil contact remains during pour stage. 3. Mat is typically laid out in a rectangular loop in the largest area with branch- es or legs into smaller areas (FREE plan design at www.radonmat.com). There is no need to trench the mat. Roll out the SGC mat, smooth it onto the ground. To avoid wrinkles and buckling, work away from the risers, stapling to the ground as you go. The mat should be stapled every three to four feet, in addi- ton to corners, tee junctions & ends. 5. Corners are constructed by peeling back the filter fabric, cutting two ends of the matrix at 45 degree angles and butting (or overlapping: no more than 1/2”) the matrix together. Pull the filter fabric back and tape into place. Staple across the joint of the matrix and each leg of the corner. Use a minimum of four staples at each corner-- two across the joint and one on each leg. 6. The tees for branches and legs are constructed by slitting the fabric of the main loop at the location desired. Cut the fabric of the branch at the edges and expose two inces of the matrix. Cut off the exposed matrix and but the ma- trix of the branch (or overlap 1/2”)to the matrix of hte main loop. Pull the flter fabric of the branch back over the main loop and tape into place. Staple across joint of the matrix with two staples and one each on the branch and main loop. Use a minimum of four staples at each tee, two across the joint and one on each loop and branch. 4 7. All openings in the fabric at joints, tee’s, and ends of branches should be taped to keep out concrete. 8. Stub up a few feet of 4” schedule 40 PVC* from all T risers before pour (or cover T riser with duct tape). Seal with polyurethene caulk and screws. This ensures no concrete aggregate enters the riser during slab pour. Be sure to label “CAUTION RADON REDUCTION SYSTEM” on all pipe. *(6” PVC may be substituted--for large multifamily projects. Simply cut T riser 4” insert away to reveal 6” insert). 9. When the building is ready for the vent pipe to be installed above the slab, fit to pre-stubbed PVC with PVC straight connect. If PVC was not preset, cut duct tape from riser and insert 4” PVC pipe now. Seal with polyurethene caulk and secure with screws. Always label “CAUTION RADON REDUCTION SYSTEM” to avoid confusion on site and for the building occupants. note: The openings in the riser are laid out at 180 degrees to accomodate straight runs of mat. However, if the riser is to be placed in a corner, which is not uncommon, the front of the T can be cut and the SGC mat inserted into the new opening. The side of the T that is unused should be sealed with tape. This creates a 90 degree T which will allow corner placement for the riser. Mat should always enter the T riser from at least two directions and exhaust to pipe vertically. SAFETY DATA & PRODUCT DATA SHEETS AVAILABLE @ www.RADONMAT.com 5 MAKING CORNERS AND SPLICES The mat should be routed around the inside perimeter of the foundation. This will require occasional corner junctions. Furthermore, splices will have to be made to join two lengths of mat together. Corners and splices are very easy to make, and do not require any special fittings. Cut back the filter fabric to reveal the core material. In the case of a splice, merely overlap the core by at least one corrugation, replace the cloth, and tape it. Use two landscape staples to hold the splice in place. In the case of a corner, peel back geotextile fabric and slice the core of the two adjoining legs at 45 degree angles which mirror each other; overlap the edges by one corrugation; return grey geotextile fabric, tape and staple the corner together. 6 CONNECTING THE MAT TO THE T RISER A convenient T-riser with dual entry al- lows for either end of the loop of mat to be secured to the riser. Slide the mat into each end of the riser and tape the edge to prevent wet concrete from entering. Cap the riser to ensure no concrete enters. T Riser caps can be purchased in leui of duct tape. A pres- tub of PVC pipe can also serve the same purpose. See steps 8-9 of the previous 7 FLAT OUTLET SGC to PVC transition SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL SOIL GAS MAT SOIL GAS MAT PVC PIPE FOOTER/INTERMEDIATE WALL/ TRENCH Soil Gas Mat TOP VIEW GOING OVER FOOTER/WALL/TRENCH GRAVEL OR SOIL UNDER MAT Soil Gas MatSoil Gas Mat 4” sch. 40 PVC PIPE GRAVEL OR SOIL UNDER MAT TRENCHTRENCHTRENCH & FOOTER CROSSINGS IDEAL FOR LONG SPANS8 STEEL SLEEVE 24” (36”) x 1” x 12” SIDE VIEW GOING THRU FOOTER/ INTERMEDIATE WALL SOIL GAS MAT SOIL GAS MAT PVC PIPE FOOTER/INTERMEDIATE WALL/ TRENCH Soil Gas Mat TOP VIEW GOING OVER FOOTER/WALL/TRENCH GRAVEL OR SOIL UNDER MAT Soil Gas MatSoil Gas Mat GRAVEL OR SOIL UNDER MAT TRENCHTRENCHSTEEL SLEEVE available in 24” or 36” STEEL SLEEVE 1” thick IDEAL SHORT TRENCHES 9 POURING CONCRETE The filter fabric that comes sewn around the soil gas collector prevents the wet concrete from entering the mat and reducing its air collection capacity. The only precaution that needs to be taken is that the fabric is duct taped closed at seams of splices and corner to sufficiently keep the uncured concrete from en- tering. The mat also needs to be secured to the soil with landscape staples to prevent the concrete from lifting off the soil while it is being applied. Re-enforcing bars and wire can be laid on top of the mat. Note: the mat is strong enough (4,300 psf) to withstand concrete workers and their wheel barrows. 10 radon risk radon-induced lung cancer claims the lives of over 22,000 Americans each year FACT: Radon is found in all 50 US states. The US EPA action level is 4.0 pci/L or higher FACT: Homes without basements are still at risk FACT: Radon is the leading cause of lung cancer among “never smokers” FACT: Radon is a natural part of the Uranium 238 breakdown chain FACT: Breathing 6.2 pci/L is the equivalent radiation dosage of a chest x-ray every other day for your lungs FACT: Radon is colorless, odorless and invisible to the naked eye FACT: Radon testing is cheap and you can do it yourself get the facts @ www.RadonReality.com Anything and everything radon, VISIT US @ www.radonPDS.com about us Professional Discount Supply | Radon Family-owned and operated since 1996. Situated on Colorado’s front range, PDS focuses on generating radon awareness through one-on-one technical support and trouble-shooting. We’re always just a phone call away. 719-444-0646 1902 Aerotech Drive, Ste 110 Colorado Springs, CO 80916 Distribution opportunities available, Please call for availability in your market TURBINE VENTILATORS CONSTRUCTION SPECIFICATIONS “A” THROAT SIZE GUAGE NO. OF BRACES BRACE MATERIALCROWN GALV.BLADE GALV.THROAT GALV. 4 24 28 26 3 ALUMINUM 6 24 28 26 3 ALUMINUM 8 24 28 26 3 ALUMINUM 10 24 28 26 3 ALUMINUM 12 24 28 24 3 ALUMINUM 14 22 26 24 3 ALUMINUM 16 22 26 24 3 STEEL 18 22 26 24 4 STEEL 20 20 26 24 4 STEEL 24 20 26 22 4 STEEL DIMENSIONAL AND PERFORMACE DATA “A” THROAT SIZE “B” HEIGHT “C” OVERALL WIDTH EXHAUSTED CAPACITY* APPROX. SHIPPING WEIGHT 4 12 10 1/4 125 5 6 14 1/2 12 3/4 147 7 8 15 14 1/4 255 8 10 16 1/4 16 1/4 425 11 12 17 19 631 13 14 19 3/4 22 3/4 700 21 16 21 3/4 25 1/2 950 31 18 24 29 1200 38 20 25 1/4 31 5/8 1700 46 24 28 1/4 35 3/4 2350 58 *4 MPHWIND CFM Appendix C VIMS As-Built Drawings VIMS VAPOR LINER AND BASE COURSE (TYP)1 BASE COURSE - CLEAN #57 STONE MIN 4" THICK BENEATH VIMS VAPOR LINER VAPOR LINER (SEE SPECIFICATION #3) CONCRETE FLOOR SLAB SUBBASE NTSVM1 SECTION THROUGH TURNED DOWN SLAB AT DRIVEWAY4 NTSVM1 VAPOR LINER SEALED TO CONCRETE PER MANUFACTURER INSTRUCTIONS. GARAGE DRIVEWAY STUD WALL OR EXTERNAL WALL (NOT PRESENT IN ALL LOCATIONS) BASE COURSE (SEE SPECIFICATION #3) SUBBASE OLD PINEVILLE ROAD AND SHOLTZ ROADCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 10061-06-060OLD PINEVILLE TOWNHOMESRYAN HOMES, AN NVR, INC COMPANY 10710 SIKES PLACE SUITE 200 CHARLOTTE, NORTH CAROLINA 28277 VAPOR MITIGATION PLAN PREPARED BY 2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology H&H NO. NVR-010 VAPOR INTRUSION MITIGATION SYSTEM PLAN SECTION DETAILS JUNE 30, 2022 VM-1 COMPACTED FILL BELOW DRIVEWAY VAPOR LINER EXTENDS TO OUTSIDE OF FOOTER, WHERE POSSIBLE SECTION THROUGH SHALLOW THICKENED SLAB WITHIN GRAVEL NTSVM1 STUD WALL BASE COURSE (SEE SPECIFICATION #3) VAPOR LINER SEALED TO CONCRETE PER MANUFACTURER INSTRUCTIONS. SUBBASE 9 CONCRETE SLAB MAT MAY BE PRESENT WITHIN GRAVEL BELOW CONCRETE AS-BUILT DRAWING SECTION THROUGH TENANT SEPARATION FOOTER WITH PIPE NTSVM1 5 SECTION THROUGH EXTERIOR WALL NTSVM1 BRICK OR HOUSE SIDING EXTERNAL WALL (NOT PRESENT AT ALL LOCATIONS) STUD WALL BASE COURSE (SEE SPECIFICATION #3) VAPOR LINER SEALED TO CONCRETE PER MANUFACTURER INSTRUCTIONS. SUBBASE 3 BRICK OR HOUSE SIDING EXTERNAL WALL (NOT PRESENT AT ALL LOCATIONS) STUD WALL BASE COURSE (SEE SPECIFICATION #3) VAPOR LINER SEALED TO CONCRETE PER MANUFACTURER INSTRUCTIONS. SUBBASEVAPOR LINER BENEATH CONCRETE FOOTER SOIL GAS COLLECTOR MAP (IF PRESENT) VIMS SUB-SLAB VENT (TYP)2 SOIL GAS COLLECTOR MAT WITHIN BASE COURSE - MIN 4" THICKNESS WITH MIN 1-INCH BELOW (SEE SPECIFICATIONS #3 & #5) VAPOR BARRIER (SEE SPECIFICATION #3) SUBBASE NTS CONCRETE FLOOR SLAB VM1 VIMS AT VERTICAL RISER (OPTIONAL SUB-SLAB COLLECTION PIPE) NTS 6 VM1 BRICK OR HOUSE SIDING EXTERNAL WALL (NOT PRESENT AT ALL LOCATIONS) STUD WALL VAPOR LINER SEALED TO PIPE AND CONCRETE PER MANUFACTURER INSTRUCTIONS. 3" SCH 40 RISER DUCT PIPE (SEE SPECIFICATION #6) BASE COURSE SOIL GAS COLLECTOR MAT SUBBASE SOIL GAS COLLECTOR MAT CONNECTION SEALED TO 3" SCH 40 PVC RISER WITH POLYURETHANE SEALANT SOIL GAS COLLECTOR MAT CONNECTION BLOCK TO PVC (ONE 0.5" DIAMETER HOLE DRILLED IN BOTTOM FOR MOISTURE DRAINAGE) 7 NTSVM1 BRICK OR SIDING EXTERNAL WALL (NOT PRESENT AT ALL LOCATIONS) STUD WALL BASE COURSE (SEE SPECIFICATION #3) 2" SCH 40 PVC ELBOW 2" OPEN ENDED PIPE, PLACED AT A MINIMUM OF 3' FROM EXTERIOR TURN-DOWN SLABS 2" SOLID SCH 40 PVC LOCKABLE WEATHERPROOF ENCLOSURE ON OUTSIDE OF HOUSE WALL. REMOVABLE PIPE PLUG AT END OF 2" PIPE. PERMANENT VACUUM MEASURING POINT VAPOR LINER PLACED LONG BOTTOM OF FOOTER; IN SOME INSTANCES, VAPOR LINER EXTENDS PARTIALLY UP EXTERIOR OF FOOTING PROFESSIONAL APPROVAL / SEAL VIMS TURBINE VENTILATOR FAN & EXHAUST (TYP) NTS FLASHING ATTIC SPACE 4"X3" PVC REDUCER ROOFTOP 3" SCH 40 PVC RISER TURBINE VENTILATOR FAN (EMPIRE MODEL TV04SS) 3" PVC PIPING THROUGH ROOF 8A VM1 3" SCH 40 PVC RISER ELECTRICAL JUNCTION BOX FOR FUTURE VACUUM FAN IN ENCLOSED ATTIC (SEE SPECIFICATION #7) VIMS EVECO VENTILATOR EXHAUST (TYPICAL)8B NTSVM1 3" TO 4" HEAVY DUTY NO HUB COUPLING 4" EMPIRE EV04SS EVECO VENTILATOR RISER DUCT PIPETHROUGH ROOF FLASHING ROOFTOP S:\AAA-Master Projects\NVR, Inc\NVR-010 OPR\Bldg Completion Reports\Building 1013, 1014, 1015\Figures\OPR VMP AS Built Figures_VM-1_VM-1A.dwg, VM-1, 6/30/2022 2:58:20 PM, amckenzie VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS 1.THE AS-BUILT DRAWINGS ARE INTENDED TO DOCUMENT THE VIMS COMPONENT INSTALLATION ONLY AND IS NOT INTENDED TO DOCUMENT CONSTRUCTION OF STRUCTURAL COMPONENTS NOT RELATED TO THE VIMS. CONSTRUCTION CONTRACTORS VERIFIED CONSISTENCY OF VIMS DETAILS WITH APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, AND PLUMBING PLANS AND RESOLVED INCONSISTENCIES WITH THE DESIGN ENGINEER PRIOR TO VIMS INSTALLATION. 2.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS USED "LOW OR NO VOC" (INCLUDING NO PCE OR TCE) PRODUCTS AND MATERIALS, WHEN POSSIBLE. THE CONSTRUCTION CONTRACTOR AND SUB-CONTRACTORS PROVIDED SAFETY DATA SHEETS (SDS) TO THE ENGINEER FOR PRODUCTS AND MATERIALS USED DURING CONSTRUCTION. 3.VIMS VAPOR LINER IS VAPORBLOCK PLUS 20 VAPOR BARRIER MANUFACTURED BY RAVEN INDUSTRIES. THE VAPOR LINER WAS INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS LINER BELOW GROUND FLOOR SLABS. A BASE COURSE CONSISTING OF CLEAN #57 STONE (OR SIMILAR HIGH PERMEABILITY STONE APPROVED BY THE ENGINEER) WAS INSTALLED BENEATH THE VIMS VAPOR LINER. IN AREAS AROUND THE SOIL GAS COLLECTOR MAT, THE BASE COURSE LAYER WAS INSTALLED WITH A MINIMUM 1-INCH LAYER BELOW THE MAT AND A MINIMUM THICKNESS OF 4-INCHES ACROSS THE ENTIRE SLAB. ALL PENETRATIONS WERE SEALED ACCORDING TO VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS AS FOUND IN THE MANUFACTURER INSTALLATION GUIDELINES. SINCE VAPORBLOCK PLUS 20 WAS USED, SMALL PUNCTURE HOLES WERE SEALED WITH THE VAPORSEALTM TAPE OR BUTYL SEAL DOUBLE SIDED TAPE AND LARGER TEARS OR DAMAGE WERE REPAIRED USING A PATCH THAT OVERLAPS THE DAMAGED AREA AND THEN WAS TAPED ALONG THE SEAMS. 4.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS AVOIDED THE USE OF TEMPORARY FORM BOARDS THAT PENETRATE THE VAPOR LINER WHERE POSSIBLE. IF TEMPORARY FORM BOARDS WERE USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR LINER WERE LIMITED AND SMALL DIAMETER STAKES (I.E. SOLID METAL STAKES) WERE USED. AS FORM BOARDS WERE REMOVED, THE CONTRACTOR OR SUB-CONTRACTORS SEALED PENETRATIONS IN ACCORDANCE WITH VAPOR LINER MANUFACTURER INSTALLATION INSTRUCTIONS. 5.VIMS BELOW AND ABOVE GRADE PIPING WAS SLOPED A MINIMUM OF 18 UNIT VERTICAL IN 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN. SOLID SECTIONS OF HORIZONTAL COLLECTION PIPE WERE SUPPORTED TO PREVENT PIPE SAG OR LOW POINT AND MAINTAIN 1% SLOPE TOWARD SLOTTED SECTIONS TO DRAIN CONDENSATION. HORIZONTAL SUB-SLAB COLLECTION SYSTEM CONSISTS SOIL GAS COLLECTOR MAT WHICH IS APPROXIMATELY 1-INCH THICK BY 12-INCHES WIDE RECTANGULAR CONDUIT. 6.3” SCH 40 PVC RISER DUCT PIPING EXTENDS IN A VERTICAL ORIENTATION THROUGH THE BUILDING ROOF AND TERMINATES A MINIMUM OF 2 FT ABOVE THE BUILDING ROOF LINE. EMPIRE TURBINE VENTILATORS OR EVECO VENTILATORS WERE INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. A 4" X 3" PVC ADAPTOR COUPLING WAS INSTALLED AT THE DISCHARGE END OF THE 3" RISER DUCT PIPE AND THE VENTILATOR WAS SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION. EXHAUST DISCHARGE IS NOT LESS THAN 10 FT (IN ANY DIRECTION) FROM AIR INTAKE OPENINGS INCLUDE WINDOWS, DOORS, AND OTHER GRAVITY AIR INTAKE OPENINGS. 7.NOTE THAT DISCHARGE LOCATIONS ON THE ROOFTOP DEPICTED IN THE VAPOR MITIGATION PLAN MAY HAVE BEEN REPOSITIONED AS LONG AS THE NEW POSITION MEETS THE REQUIREMENTS PRESENTED ABOVE. AN ELECTRICAL JUNCTION BOX (120V, 60HZ AC REQUIRED) WAS INSTALLED NEAR THE FAN LOCATION FOR CONVERSION TO ELECTRIC FANS, IF REQUIRED. ALL WIRING AND ELECTRICAL WERE INSTALLED PER APPLICABLE BUILDING AND ELECTRICAL CODES. 8.ABOVE-SLAB ACCESSIBLE RISER DUCT PIPING WAS PERMANENTLY IDENTIFIED BY MEANS OF A LABEL AT A MINIMUM OF ONCE EVERY 10-LINEAR FT WITH "VAPOR MITIGATION - CONTACT HOA". THE RISER PIPE AT THE VENTILATOR WAS LABELED WITH "VAPOR MITIGATION SYSTEM - CONTACT HOA IF DAMAGED" IN AN ACCESSIBLE LOCATION IN THE ATTIC. 9.INSPECTIONS: INSPECTIONS OF EACH COMPONENT OF THE VIMS WERE CONDUCTED BY THE ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS COMPONENTS WERE INSTALLED PER THE APPROVED DESIGN. THE REQUIRED INSPECTIONS INCLUDED: (1) INSPECTION OF SUB-SLAB PIPING LAYOUT AND GRAVEL PLACEMENT PRIOR TO INSTALLING VAPOR LINER; (2) INSPECTION OF VAPOR LINER PRIOR TO POURING CONCRETE; (3) INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (4) INSPECTION OF FAN AND VENT PIPE CONNECTIONS. RYAN HOMES, AN NVR, INC COMPANY 10710 SIKES PLACE SUITE 200 CHARLOTTE, NORTH CAROLINA 28277 VAPOR MITIGATION PLAN PREPARED BY 2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology PROFESSIONAL APPROVAL / SEAL H&H NO. NVR-010 VAPOR INTRUSION MITIGATION SYSTEM PLAN SPECIFICATIONS JUNE 30, 2022 VM-1AOLD PINEVILLE ROAD AND SHOLTZ ROADCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 10061-06-060OLD PINEVILLE TOWNHOMESAS-BUILT DRAWING S:\AAA-Master Projects\NVR, Inc\NVR-010 OPR\Bldg Completion Reports\Building 1013, 1014, 1015\Figures\OPR VMP AS Built Figures_VM-1_VM-1A.dwg, VM-1A, 6/30/2022 2:58:53 PM, amckenzie MP-1013-A MP-1013-B MP-1013-C MP-1013-D MP-1013-E MP-1013-F MP-1013-G LEGEND EXTENT OF VAPOR BARRIER - SEE SPECIFICATION #3 ON SHEET VM-1A SOIL GAS COLLECTOR MAT VERTICAL RISER (3" SCH. 40 PVC) AND FAN (REFER TO DETAIL #8A FOR VENTILATOR FAN SET-UP) VACUUM MEASURING POINT THICKENED SLAB AT LOAD BEARING WALL SHALLOW THICKENED SLAB WITHIN GRAVEL LAYER NOTES: 1.ONE VACUUM MEASURING POINT WAS INSTALLED PER UNIT. IF THE UNIT IS AN END UNIT, THEN VACUUM MEASURING POINT WAS INSTALLED ON THE BACKSIDE OF THE UNIT. IF THE UNITS ARE INTERIOR UNITS, THEN THE VACUUM MEASURING POINT WAS INSTALLED ON THE FRONT SIDE OF THE UNIT. 2.GROUND FLOOR LEVEL OF EACH BUILDING SHOWN. REFER TO STRUCTURAL AND ARCHITECTURAL DRAWINGS FOR FINAL BUILDING LAYOUT. 3.REFER TO SPECIFICATIONS 1 THROUGH 9 AND SECTION DETAILS ON SHEETS VM-1 AND VM-1A. 4.EACH UNIT IS APPROXIMATELY 640 SQ FT (14 FT X 40 FT). RYAN HOMES, AN NVR, INC COMPANY 10710 SIKES PLACE SUITE 200 CHARLOTTE, NORTH CAROLINA 28277 VAPOR MITIGATION PLAN PREPARED BY 2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology PROFESSIONAL APPROVAL / SEAL H&H NO. NVR-010 VAPOR INTRUSION MITIGATION SYSTEM PLAN BUILDING 1013 JUNE 30, 2022 VM-2OLD PINEVILLE ROAD AND SHOLTZ ROADCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 10061-06-060OLD PINEVILLE TOWNHOMESAS-BUILT DRAWING 4 VM1 7 VM1 6/8A VM1 2 VM1 1 VM1 7 VM1 2 VM1 4 VM15 VM1 1 VM1 5 VM1 7 VM1 3 VM1 3 VM1 6/8A VM1 BIRCHAM DRIVEANSTON DRIVE UNIT G 3215 BIRCHAM DRIVE UNIT F 3213 BIRCHAM DRIVE UNIT E 3211 BIRCHAM DRIVE UNIT D 3209 BIRCHAM DRIVE UNIT C 3207 BIRCHAM DRIVE UNIT B 3205 BIRCHAM DRIVE UNIT A 3203 BIRCHAM DRIVE 6/8A VM1 7 VM1 9 VM1 S:\AAA-Master Projects\NVR, Inc\NVR-010 OPR\Bldg Completion Reports\Building 1013, 1014, 1015\Figures\OPR VMP AS-Built Figures_1013_1014_1015.dwg, BLDG-1013, 6/30/2022 3:00:36 PM, amckenzie MP-1014-G MP-1014-F MP-1014-E MP-1014-D MP-1014-C MP-1014-B MP-1014-A LEGEND EXTENT OF VAPOR BARRIER - SEE SPECIFICATION #3 ON SHEET VM-1A SOIL GAS COLLECTOR MAT VERTICAL RISER (3" SCH. 40 PVC) AND FAN (REFER TO DETAIL #8B FOR VENTILATOR FAN SET-UP) VACUUM MEASURING POINT THICKENED SLAB AT LOAD BEARING WALL SHALLOW THICKENED SLAB WITHIN GRAVEL LAYER NOTES: 1.ONE VACUUM MEASURING POINT WAS INSTALLED PER UNIT. IF THE UNIT IS AN END UNIT, THEN VACUUM MEASURING POINT WAS INSTALLED ON THE BACKSIDE OF THE UNIT. IF THE UNITS ARE INTERIOR UNITS, THEN THE VACUUM MEASURING POINT WAS INSTALLED ON THE FRONT SIDE OF THE UNIT. 2.GROUND FLOOR LEVEL OF EACH BUILDING SHOWN. REFER TO STRUCTURAL AND ARCHITECTURAL DRAWINGS FOR FINAL BUILDING LAYOUT. 3.REFER TO SPECIFICATIONS 1 THROUGH 9 AND SECTION DETAILS ON SHEETS VM-1 AND VM-1A. 4.EACH UNIT IS APPROXIMATELY 640 SQ FT (14 FT X 40 FT). RYAN HOMES, AN NVR, INC COMPANY 10710 SIKES PLACE SUITE 200 CHARLOTTE, NORTH CAROLINA 28277 VAPOR MITIGATION PLAN PREPARED BY 2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology PROFESSIONAL APPROVAL / SEAL H&H NO. NVR-010 VAPOR INTRUSION MITIGATION SYSTEM PLAN BUILDING 1014 JUNE 30, 2022 VM-3OLD PINEVILLE ROAD AND SHOLTZ ROADCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 10061-06-060OLD PINEVILLE TOWNHOMESAS-BUILT DRAWING 4 VM1 7 VM1 6/8B VM1 2 VM1 1 VM1 7 VM1 2 VM1 4 VM15 VM1 1 VM1 7 VM1 5 VM1 7 VM1 3 VM1 3 VM1 6/8B VM1 BIRCHAM DRIVETODDWICK PLACE UNIT A 3115 BIRCHAM DRIVE UNIT B 3113 BIRCHAM DRIVE UNIT C 3111 BIRCHAM DRIVE UNIT D 3109 BIRCHAM DRIVE UNIT E 3107 BIRCHAM DRIVE UNIT F 3105 BIRCHAM DRIVE UNIT G 3103 BIRCHAM DRIVE 6/8B VM1 6/8 VM1 7 VM1 9 VM1 S:\AAA-Master Projects\NVR, Inc\NVR-010 OPR\Bldg Completion Reports\Building 1013, 1014, 1015\Figures\OPR VMP AS-Built Figures_1013_1014_1015.dwg, BLDG-1014, 6/30/2022 3:01:05 PM, amckenzie MP-1015-A MP-1015-B MP-1015-C MP-1015-D MP-1015-E MP-1015-F MP-1015-G LEGEND EXTENT OF VAPOR BARRIER - SEE SPECIFICATION #3 ON SHEET VM-1A SOIL GAS COLLECTOR MAT VERTICAL RISER (3" SCH. 40 PVC) AND FAN (REFER TO DETAIL #8B FOR VENTILATOR FAN SET-UP) VACUUM MEASURING POINT THICKENED SLAB AT LOAD BEARING WALL SHALLOW THICKENED SLAB WITHIN GRAVEL LAYER NOTES: 1.ONE VACUUM MEASURING POINT WAS INSTALLED PER UNIT. IF THE UNIT IS AN END UNIT, THEN VACUUM MEASURING POINT WAS INSTALLED ON THE BACKSIDE OF THE UNIT. IF THE UNITS ARE INTERIOR UNITS, THEN THE VACUUM MEASURING POINT WAS INSTALLED ON THE FRONT SIDE OF THE UNIT. 2.GROUND FLOOR LEVEL OF EACH BUILDING SHOWN. REFER TO STRUCTURAL AND ARCHITECTURAL DRAWINGS FOR FINAL BUILDING LAYOUT. 3.REFER TO SPECIFICATIONS 1 THROUGH 9 AND SECTION DETAILS ON SHEETS VM-1 AND VM-1A. 4.EACH UNIT IS APPROXIMATELY 640 SQ FT (14 FT X 40 FT). RYAN HOMES, AN NVR, INC COMPANY 10710 SIKES PLACE SUITE 200 CHARLOTTE, NORTH CAROLINA 28277 VAPOR MITIGATION PLAN PREPARED BY 2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology PROFESSIONAL APPROVAL / SEAL H&H NO. NVR-010 VAPOR INTRUSION MITIGATION SYSTEM PLAN BUILDING 1015 JUNE 30, 2022 VM-4OLD PINEVILLE ROAD AND SHOLTZ ROADCHARLOTTE, NORTH CAROLINABROWNFIELDS PROJECT NO. 10061-06-060OLD PINEVILLE TOWNHOMESAS-BUILT DRAWING 4 VM1 7 VM1 6/8B VM1 2 VM1 1 VM1 7 VM1 2 VM1 4 VM15 VM1 1 VM1 5 VM1 7 VM1 3 VM1 3 VM1 6/8B VM1 BIRCHAM DRIVETODDWICK PLACE UNIT G 625 SCHLOTZ ROAD UNIT F 623 SCHLOTZ ROAD UNIT E 621 SCHLOTZ ROAD UNIT D 619 SCHLOTZ ROAD UNIT C 617 SCHLOTZ ROAD UNIT B 615 SCHLOTZ ROAD UNIT A 613 SCHLOTZ ROAD 6/8B VM1 7 VM1 9 VM1 S:\AAA-Master Projects\NVR, Inc\NVR-010 OPR\Bldg Completion Reports\Building 1013, 1014, 1015\Figures\OPR VMP AS-Built Figures_1013_1014_1015.dwg, BLDG-1015, 6/30/2022 3:01:37 PM, amckenzie Appendix D VIMS Installation Photographs Photograph No. 2: Representative photograph of vapor barrier installation.NVR-0102923 S. Tryon Street, Suite 100 Charlotte, NC 28203704.586.0007(p) 704.586.0373(f) Photograph No. 1: Representative photograph of the gravel base and sub-slab soil gas mats. OLD PINEVILLE ROAD TOWNHOMESOLD PINEVILLE ROADCHARLOTTE, NORTH CAROLINA Photograph No. 4: Representative photograph of turbine ventilators installed on the roof. 2923 S. Tryon Street, Suite 100 Charlotte, NC 28203704.586.0007(p) 704.586.0373(f) Photograph No. 3: Representative photograph of properly pitched and labeled PVC riser. OLD PINEVILLE ROAD TOWNHOMESOLD PINEVILLE ROADCHARLOTTE, NORTH CAROLINANVR-010 Photograph No. 5: Representative photograph of Eveco ventilators installed on the roof. 2923 S. Tryon Street, Suite 100 Charlotte, NC 28203704.586.0007(p) 704.586.0373(f) OLD PINEVILLE ROAD TOWNHOMESOLD PINEVILLE ROADCHARLOTTE, NORTH CAROLINANVR-010 Appendix E Field Forms and Field Data Table E-1 VIMS Pilot Test Old Pineville Road Old Pineville Townhomes - Building 1013 Charlotte, North Carolina Brownfields Project No. 11061-06-060 H&H Job No. NVR-010 Unit ID Date Elapsed Time Fan MP-1013-A Fan MP-1013-B Fan MP-1013-C Fan MP-1013-D Fan MP-1013-E Fan MP-1013-F Fan MP-1013-E 0 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1 -2.478 -1.881 -2.331 -0.255 -2.351 -0.529 -2.366 -0.192 -2.362 -0.943 -2.400 -0.532 -2.387 -0.818 10 -2.448 -1.866 -2.535 -0.851 -2.300 -0.523 -2.398 -0.439 -2.366 -0.946 -2.382 -1.196 -2.404 -0.805 Notes Elapsed time is reported in minutes. Vacuum measurements are reported in inches of water column (in-WC). Vacuum measurements were collected post-completion and pre-occupancy. MP = Monitoring Point Fan Utilized = RadonAway RP265 Fans A & B were operated simultaneously. Fans C & D were operated simultaneously. Fans E & F were operated simultaneously. Fan G was operated indiividually. Vacuum Monitoring Point Measurements D 1/13/2022 A B C 1/13/2022 1/13/2022 1/13/2022 E F G 1/13/2022 1/13/2022 1/13/2022 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-010 OPR/Bldg Completion Reports/Building 1013, 1014, 1015/Data Tables/Building 1013,1014 and 1015 Pilot Testing 6/22/2022 Table E-1 Hart & Hickman, PC Table E-2 VIMS Pilot Test Old Pineville Road Old Pineville Townhomes - Building 1014 Charlotte, North Carolina Brownfields Project No. 11061-06-060 H&H Job No. NVR-010 Unit ID Date Elapsed Time Fan MP-1014-A Fan MP-1014-B Fan MP-1014-C Fan MP-1014-D Fan MP-1014-E Fan MP-1014-F Fan MP-1014-G 0 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1 -2.513 -2.390 -2.347 -1.404 -2.399 -1.344 -2.428 -1.360 -2.377 -0.832 -2.328 -0.619 -2.348 -0.766 10 -2.565 -2.384 -2.372 -1.412 -2.385 -1.336 -2.353 -1.343 -2.324 -0.838 -2.425 -0.612 -2.392 -0.762 Notes Elapsed time is reported in minutes. Vacuum measurements are reported in inches of water column (in-WC). Vacuum measurements were collected post-completion and pre-occupancy. MP = Monitoring Point Fan Utilized=RadonAway RP265 Fans A & B were operated simultaneously. Fans C & D were operated simultaneously. Fans E & F were operated simultaneously. Fan G was operated indiividually. G 2/11/2022 Vacuum Monitoring Point Measurements D E F 2/11/2022 2/11/2022 2/11/2022 A B C 2/11/2022 2/11/2022 2/11/2022 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-010 OPR/Bldg Completion Reports/Building 1013, 1014, 1015/Data Tables/Building 1013,1014 and 1015 Pilot Testing 6/22/2022 Table E-2 Hart & Hickman, PC Table E-3 VIMS Pilot Test Old Pineville Road Old Pineville Townhomes - Building 1015 Charlotte, North Carolina Brownfields Project No. 11061-06-060 H&H Job No. NVR-010 Unit ID Date Elapsed Time Fan MP-1007-A Fan MP-1007-B Fan MP-1007-C Fan MP-1007-D Fan MP-1007-E Fan MP-1007-F Fan MP-1007-G 0 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 1 -2.342 -1.105 -2.343 -1.077 -2.301 -0.672 -2.371 -0.385 -2.274 -0.352 -2.370 -0.574 -2.416 -0.925 10 -2.339 -1.102 -2.362 -1.062 -2.255 -0.676 -2.309 -0.385 -2.268 -0.355 -2.364 -0.537 -2.282 -0.924 Notes Elapsed time is reported in minutes. Vacuum measurements are reported in inches of water column (in-WC). Vacuum measurements were collected post-completion and pre-occupancy. MP = Monitoring Point Fan Utilized=RadonAway RP265 Fans A & B were operated simultaneously. Fans C & D were operated simultaneously. Fans E & F were operated simultaneously. Fan G was operated indiividually. 4/18/2022 G 4/18/2022 Vacuum Monitoring Point Measurements D E F 4/18/2022 4/18/2022 4/18/2022 A B C 4/18/2022 4/18/2022 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-010 OPR/Bldg Completion Reports/Building 1013, 1014, 1015/Data Tables/Building 1013,1014 and 1015 Pilot Testing 6/22/2022 Table E-3 Hart & Hickman, PC NVR-010 SMS / DAK Cloudy 70O F SS-1013-A 1446 SS Perm Conc. NA Gravel NA Full 05/05/22 10:45 70 Pump 15L 15.0 0 Yes 1331 SS-1013-D 3756 SS Perm Conc. NA Gravel NA Full 70 Pump 15L 15.4 0 Yes 1287 SS-1013-G 3813 SS Perm Conc. NA Gravel NA Full 70 Pump 15L 15.3 0 Yes 3144 SS-1014-A 1395 SS Perm Conc. NA Gravel NA Full 70 Pump 15L 15.3 0 Yes1282 SS-1014-D 1429 SS Perm Conc. NA Gravel NA Full 70 Pump 15L 15.3 0 Yes 3202 SS-1014-G 3869 SS Perm Conc. NA Gravel NA Full 70 Pump 15L 15.0 0 Yes 2775 05/05/22 11:30 05/05/22 12:05 05/05/22 12:40 05/05/22 13:30 05/05/22 13:00 NVR-010 SMS/DAK Cloudy 70O F SS-1013-A 1.4L1446 05/05/22 10 140 ml/min 10:56 -18 70 73 NA 1331 11:03 -5 10:51 -26.5 NA SS-1013-D 1.4L 11:36 -29 3756 05/05/22 10 11:41 -16 70 73 NA NA 140 ml/min1287 11:47 -5 SS-1013-G 12:12 -301.4L3813 05/05/22 10 70 70 NA NA 3144 140 ml/min 12:17 -18 12:24 -5 SS-1014-A 12:54 -281.4L1395 05/05/22 10 13:00 -18 70 70 NA NA 1282 140 ml/min 13:07 -5 SS-1014-D 13:05 -301.4L1429 05/05/22 10 13:10 -21 70 70 NA NA 140 ml/min3202 13:20 -5 SS-1014-G 1.4L 13:34 -29 05/05/223769 10 13:40 -16 70 70 NA NA 2775 140 ml/min 13:46 -5 NVR-010 SMS / DAK Cloudy 70O F SS-1015-A 3944 SS Perm Conc. NA Gravel NA Full 05/05/22 13:55 75 Pump 15L 15.0 0 Yes 3099 SS-1015-D 2522 SS Perm Conc NA Gravel NA Full 75 Pump 15L 15.4 0 Yes 3193 SS-1015-G 2393 SS Perm Conc. NA Gravel NA Full 75 Pump 15L 15.3 0 Yes 0698 SS-1015-Dup 2623 SS Perm Conc. NA Gravel NA Full 75 Pump 15L 15.3 0 Yes0698 05/05/22 14:10 05/05/22 13:10 05/05/22 13:10 NVR-010 SMS / DAK Cloudy 70O F SS-1015-A 1.4L3944 05/05/22 10 140 ml/min 14:05 -16 75 60 NA 3099 14:10 -5 14:00 -30 NA SS-1015-D 1.4L 14:16 -29 2522 05/05/22 10 14:21 -19 75 60 NA NA 140 ml/min3193 14:26 -5 SS-1015-G 15:13 -301.4L2393 05/05/22 10 75 60 NA NA 0698 140 ml/min 15:18 -17 15:25 -5 SS-1015-Dup 15:13 -301.4L2623 05/05/22 10 15:18 -17 75 60 NA NA 0698 140 ml/min 15:25 -5 Appendix F Laboratory Analytical Report #=CL# June 01, 2022 LIMS USE: FR - ALEXIS MCKENZIE LIMS OBJECT ID: 92603519 92603519 Project: Pace Project No.: RE: Alexis McKenzie Hart & Hickman 2923 S Tryon Street Suite 100 Charlotte, NC 28203 NVR-010 Dear Alexis McKenzie: Enclosed are the analytical results for sample(s) received by the laboratory on May 09, 2022. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Minneapolis If you have any questions concerning this report, please feel free to contact me. Sincerely, Kevin Godwin kevin.godwin@pacelabs.com Project Manager 1(704)875-9092 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 40 #=CP# CERTIFICATIONS Pace Project No.: Project: 92603519 NVR-010 Pace Analytical Services, LLC - Minneapolis MN 1700 Elm Street SE, Minneapolis, MN 55414 1800 Elm Street SE, Minneapolis, MN 55414--Satellite Air Lab A2LA Certification #: 2926.01* Alabama Certification #: 40770 Alaska Contaminated Sites Certification #: 17-009* Alaska DW Certification #: MN00064 Arizona Certification #: AZ0014* Arkansas DW Certification #: MN00064 Arkansas WW Certification #: 88-0680 California Certification #: 2929 Colorado Certification #: MN00064 Connecticut Certification #: PH-0256 EPA Region 8 Tribal Water Systems+Wyoming DW Certification #: via MN 027-053-137 Florida Certification #: E87605* Georgia Certification #: 959 Hawaii Certification #: MN00064 Idaho Certification #: MN00064 Illinois Certification #: 200011 Indiana Certification #: C-MN-01 Iowa Certification #: 368 Kansas Certification #: E-10167 Kentucky DW Certification #: 90062 Kentucky WW Certification #: 90062 Louisiana DEQ Certification #: AI-03086* Louisiana DW Certification #: MN00064 Maine Certification #: MN00064* Maryland Certification #: 322 Michigan Certification #: 9909 Minnesota Certification #: 027-053-137* Minnesota Dept of Ag Approval: via MN 027-053-137 Minnesota Petrofund Registration #: 1240* Mississippi Certification #: MN00064 Missouri Certification #: 10100 Montana Certification #: CERT0092 Nebraska Certification #: NE-OS-18-06 Nevada Certification #: MN00064 New Hampshire Certification #: 2081* New Jersey Certification #: MN002 New York Certification #: 11647* North Carolina DW Certification #: 27700 North Carolina WW Certification #: 530 North Dakota Certification (A2LA) #: R-036 North Dakota Certification (MN) #: R-036 Ohio DW Certification #: 41244 Ohio VAP Certification (1700) #: CL101 Ohio VAP Certification (1800) #: CL110* Oklahoma Certification #: 9507* Oregon Primary Certification #: MN300001 Oregon Secondary Certification #: MN200001* Pennsylvania Certification #: 68-00563* Puerto Rico Certification #: MN00064 South Carolina Certification #:74003001 Tennessee Certification #: TN02818 Texas Certification #: T104704192* Utah Certification #: MN00064* Vermont Certification #: VT-027053137 Virginia Certification #: 460163* Washington Certification #: C486* West Virginia DEP Certification #: 382 West Virginia DW Certification #: 9952 C Wisconsin Certification #: 999407970 Wyoming UST Certification #: via A2LA 2926.01 USDA Permit #: P330-19-00208 *Please Note: Applicable air certifications are denoted with an asterisk (*). REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 40 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92603519 NVR-010 Lab ID Sample ID Matrix Date Collected Date Received 92603519001 SS-1013-A Air 05/05/22 11:03 05/09/22 06:40 92603519002 SS-1013-D Air 05/05/22 11:47 05/09/22 06:40 92603519003 SS-1013-G Air 05/05/22 12:24 05/09/22 06:40 92603519004 SS-1014-A Air 05/05/22 13:07 05/09/22 06:40 92603519005 SS-1014-D Air 05/05/22 13:20 05/09/22 06:40 92603519006 SS-1014-G Air 05/05/22 13:46 05/09/22 06:40 92603519007 SS-1015-A Air 05/05/22 14:10 05/09/22 06:40 92603519008 SS-1015-D Air 05/05/22 14:26 05/09/22 06:40 92603519009 SS-1015-G Air 05/05/22 15:25 05/09/22 06:40 92603519010 SS-1015-DUP Air 05/05/22 00:00 05/09/22 06:40 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 40 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92603519 NVR-010 Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92603519001 SS-1013-A TO-15 61 PASI-MMJL 92603519002 SS-1013-D TO-15 61 PASI-MMJL 92603519003 SS-1013-G TO-15 61 PASI-MMJL 92603519004 SS-1014-A TO-15 61 PASI-MMJL 92603519005 SS-1014-D TO-15 61 PASI-MMJL 92603519006 SS-1014-G TO-15 61 PASI-MMJL 92603519007 SS-1015-A TO-15 61 PASI-MAJA 92603519008 SS-1015-D TO-15 61 PASI-MAJA 92603519009 SS-1015-G TO-15 61 PASI-MAJA 92603519010 SS-1015-DUP TO-15 61 PASI-MAJA PASI-M = Pace Analytical Services - Minneapolis REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1013-A Lab ID:92603519001 Collected:05/05/22 11:03 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR Acetone 173 ug/m3 05/28/22 02:03 67-64-113.2 4.0 2.19 Benzene 1.9 ug/m3 05/28/22 02:03 71-43-20.71 0.25 2.19 Benzyl chloride ND ug/m3 05/28/22 02:03 100-44-75.8 1.9 2.19 Bromodichloromethane ND ug/m3 05/28/22 02:03 75-27-43.0 0.52 2.19 Bromoform ND ug/m3 05/28/22 02:03 75-25-211.5 3.5 2.19 Bromomethane ND ug/m3 05/28/22 02:03 74-83-91.7 0.33 2.19 1,3-Butadiene ND ug/m3 05/28/22 02:03 106-99-00.99 0.26 2.19 2-Butanone (MEK)778 ug/m3 05/31/22 16:06 78-93-313120.4 43.8 Carbon disulfide 3.4 ug/m3 05/28/22 02:03 75-15-01.4 0.28 2.19 Carbon tetrachloride ND ug/m3 05/28/22 02:03 56-23-52.8 0.61 2.19 Chlorobenzene ND ug/m3 05/28/22 02:03 108-90-72.0 0.34 2.19 Chloroethane ND ug/m3 05/28/22 02:03 75-00-31.2 0.49 2.19 Chloroform 1.3 ug/m3 05/28/22 02:03 67-66-31.1 0.40 2.19 Chloromethane 2.6 ug/m3 05/28/22 02:03 74-87-30.92 0.19 2.19 Cyclohexane 4.7 ug/m3 05/28/22 02:03 110-82-73.8 0.48 2.19 Dibromochloromethane ND ug/m3 05/28/22 02:03 124-48-13.8 1.1 2.19 1,2-Dibromoethane (EDB)ND ug/m3 05/28/22 02:03 106-93-41.7 0.66 2.19 1,2-Dichlorobenzene ND ug/m3 05/28/22 02:03 95-50-16.7 0.89 2.19 1,3-Dichlorobenzene ND ug/m3 05/28/22 02:03 541-73-16.7 1.1 2.19 1,4-Dichlorobenzene ND ug/m3 05/28/22 02:03 106-46-76.7 1.9 2.19 Dichlorodifluoromethane 3.6 ug/m3 05/28/22 02:03 75-71-82.2 0.41 2.19 1,1-Dichloroethane ND ug/m3 05/28/22 02:03 75-34-31.8 0.36 2.19 1,2-Dichloroethane ND ug/m3 05/28/22 02:03 107-06-21.8 0.42 2.19 1,1-Dichloroethene ND ug/m3 05/28/22 02:03 75-35-41.8 0.30 2.19 cis-1,2-Dichloroethene ND ug/m3 05/28/22 02:03 156-59-21.8 0.43 2.19 trans-1,2-Dichloroethene ND ug/m3 05/28/22 02:03 156-60-51.8 0.37 2.19 1,2-Dichloropropane ND ug/m3 05/28/22 02:03 78-87-52.1 0.59 2.19 cis-1,3-Dichloropropene ND ug/m3 05/28/22 02:03 10061-01-55.1 0.56 2.19 trans-1,3-Dichloropropene ND ug/m3 05/28/22 02:03 10061-02-65.1 1.2 2.19 Dichlorotetrafluoroethane ND ug/m3 05/28/22 02:03 76-14-23.1 0.44 2.19 Ethanol 14.8 ug/m3 05/28/22 02:03 64-17-54.2 1.3 2.19 Ethyl acetate ND ug/m3 05/28/22 02:03 141-78-61.6 0.29 2.19 Ethylbenzene 2.1J ug/m3 05/28/22 02:03 100-41-44.8 0.68 2.19 4-Ethyltoluene 1.1J ug/m3 05/28/22 02:03 622-96-85.5 1.0 2.19 n-Heptane ND ug/m3 05/28/22 02:03 142-82-51.8 0.40 2.19 Hexachloro-1,3-butadiene ND ug/m3 05/28/22 02:03 87-68-311.9 2.7 2.19 n-Hexane ND ug/m3 05/28/22 02:03 110-54-31.6 0.42 2.19 2-Hexanone ND ug/m3 05/28/22 02:03 591-78-69.1 0.97 2.19 Methylene Chloride ND ug/m3 05/28/22 02:03 75-09-27.7 1.3 2.19 4-Methyl-2-pentanone (MIBK)ND ug/m3 05/28/22 02:03 108-10-19.1 0.70 2.19 Methyl-tert-butyl ether ND ug/m3 05/28/22 02:03 1634-04-48.0 0.28 2.19 Naphthalene ND ug/m3 05/28/22 02:03 91-20-35.8 4.8 2.19 2-Propanol 9.8 ug/m3 05/28/22 02:03 67-63-05.5 1.1 2.19 Propylene ND ug/m3 05/28/22 02:03 115-07-11.9 0.28 2.19 Styrene ND ug/m3 05/28/22 02:03 100-42-51.9 0.84 2.19 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1013-A Lab ID:92603519001 Collected:05/05/22 11:03 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR 1,1,2,2-Tetrachloroethane ND ug/m3 05/28/22 02:03 79-34-53.1 0.81 2.19 Tetrachloroethene 2.4 ug/m3 05/28/22 02:03 127-18-41.5 0.64 2.19 Tetrahydrofuran 543 ug/m3 05/31/22 16:06 109-99-926.3 7.9 43.8 Toluene 5.3 ug/m3 05/28/22 02:03 108-88-34.2 0.53 2.19 1,2,4-Trichlorobenzene ND ug/m3 05/28/22 02:03 120-82-116.5 10.7 2.19 1,1,1-Trichloroethane ND ug/m3 05/28/22 02:03 71-55-62.4 0.41 2.19 1,1,2-Trichloroethane ND ug/m3 05/28/22 02:03 79-00-51.2 0.43 2.19 Trichloroethene ND ug/m3 05/28/22 02:03 79-01-61.2 0.43 2.19 Trichlorofluoromethane 1.9J ug/m3 05/28/22 02:03 75-69-42.5 0.51 2.19 1,1,2-Trichlorotrifluoroethane 0.71J ug/m3 05/28/22 02:03 76-13-13.4 0.63 2.19 1,2,4-Trimethylbenzene 4.1 ug/m3 05/28/22 02:03 95-63-62.2 0.78 2.19 1,3,5-Trimethylbenzene 2.0J ug/m3 05/28/22 02:03 108-67-82.2 0.64 2.19 Vinyl acetate ND ug/m3 05/28/22 02:03 108-05-41.6 0.46 2.19 Vinyl chloride ND ug/m3 05/28/22 02:03 75-01-41.1 0.19 2.19 m&p-Xylene 4.8 ug/m3 05/28/22 02:03 179601-23-13.9 1.4 2.19 o-Xylene 1.6J ug/m3 05/28/22 02:03 95-47-61.9 0.59 2.19 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1013-D Lab ID:92603519002 Collected:05/05/22 11:47 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR Acetone 237J ug/m3 05/31/22 16:38 67-64-1747224123.6 Benzene 0.55J ug/m3 05/28/22 02:39 71-43-20.67 0.23 2.06 Benzyl chloride ND ug/m3 05/28/22 02:39 100-44-75.4 1.8 2.06 Bromodichloromethane ND ug/m3 05/28/22 02:39 75-27-42.8 0.49 2.06 Bromoform ND ug/m3 05/28/22 02:39 75-25-210.8 3.3 2.06 Bromomethane ND ug/m3 05/28/22 02:39 74-83-91.6 0.31 2.06 1,3-Butadiene ND ug/m3 05/28/22 02:39 106-99-00.93 0.25 2.06 2-Butanone (MEK)1300 ug/m3 05/31/22 16:38 78-93-337157.5 123.6 Carbon disulfide 8.0 ug/m3 05/28/22 02:39 75-15-01.3 0.27 2.06 Carbon tetrachloride ND ug/m3 05/28/22 02:39 56-23-52.6 0.58 2.06 Chlorobenzene ND ug/m3 05/28/22 02:39 108-90-71.9 0.32 2.06 Chloroethane ND ug/m3 05/28/22 02:39 75-00-31.1 0.46 2.06 Chloroform ND ug/m3 05/28/22 02:39 67-66-31.0 0.38 2.06 Chloromethane 0.69J ug/m3 05/28/22 02:39 74-87-30.87 0.18 2.06 Cyclohexane 5.8 ug/m3 05/28/22 02:39 110-82-73.6 0.46 2.06 Dibromochloromethane ND ug/m3 05/28/22 02:39 124-48-13.6 1.1 2.06 1,2-Dibromoethane (EDB)ND ug/m3 05/28/22 02:39 106-93-41.6 0.62 2.06 1,2-Dichlorobenzene ND ug/m3 05/28/22 02:39 95-50-16.3 0.83 2.06 1,3-Dichlorobenzene ND ug/m3 05/28/22 02:39 541-73-16.3 1.0 2.06 1,4-Dichlorobenzene ND ug/m3 05/28/22 02:39 106-46-76.3 1.8 2.06 Dichlorodifluoromethane 3.7 ug/m3 05/28/22 02:39 75-71-82.1 0.39 2.06 1,1-Dichloroethane ND ug/m3 05/28/22 02:39 75-34-31.7 0.34 2.06 1,2-Dichloroethane ND ug/m3 05/28/22 02:39 107-06-21.7 0.40 2.06 1,1-Dichloroethene ND ug/m3 05/28/22 02:39 75-35-41.7 0.28 2.06 cis-1,2-Dichloroethene ND ug/m3 05/28/22 02:39 156-59-21.7 0.40 2.06 trans-1,2-Dichloroethene ND ug/m3 05/28/22 02:39 156-60-51.7 0.35 2.06 1,2-Dichloropropane ND ug/m3 05/28/22 02:39 78-87-51.9 0.55 2.06 cis-1,3-Dichloropropene ND ug/m3 05/28/22 02:39 10061-01-54.8 0.53 2.06 trans-1,3-Dichloropropene ND ug/m3 05/28/22 02:39 10061-02-64.8 1.1 2.06 Dichlorotetrafluoroethane ND ug/m3 05/28/22 02:39 76-14-22.9 0.42 2.06 Ethanol 10.8 ug/m3 05/28/22 02:39 64-17-54.0 1.2 2.06 Ethyl acetate ND ug/m3 05/28/22 02:39 141-78-61.5 0.27 2.06 Ethylbenzene 1.5J ug/m3 05/28/22 02:39 100-41-44.5 0.64 2.06 4-Ethyltoluene ND ug/m3 05/28/22 02:39 622-96-85.2 0.97 2.06 n-Heptane 1.5J ug/m3 05/28/22 02:39 142-82-51.7 0.37 2.06 Hexachloro-1,3-butadiene ND ug/m3 05/28/22 02:39 87-68-311.2 2.5 2.06 n-Hexane ND ug/m3 05/28/22 02:39 110-54-31.5 0.39 2.06 2-Hexanone ND ug/m3 05/28/22 02:39 591-78-68.6 0.91 2.06 Methylene Chloride ND ug/m3 05/28/22 02:39 75-09-27.3 1.2 2.06 4-Methyl-2-pentanone (MIBK)ND ug/m3 05/28/22 02:39 108-10-18.6 0.66 2.06 Methyl-tert-butyl ether ND ug/m3 05/28/22 02:39 1634-04-47.5 0.26 2.06 Naphthalene ND ug/m3 05/28/22 02:39 91-20-35.5 4.5 2.06 2-Propanol 6.4 ug/m3 05/28/22 02:39 67-63-05.2 1.0 2.06 Propylene ND ug/m3 05/28/22 02:39 115-07-11.8 0.27 2.06 Styrene ND ug/m3 05/28/22 02:39 100-42-51.8 0.79 2.06 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1013-D Lab ID:92603519002 Collected:05/05/22 11:47 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR 1,1,2,2-Tetrachloroethane ND ug/m3 05/28/22 02:39 79-34-52.9 0.77 2.06 Tetrachloroethene ND ug/m3 05/28/22 02:39 127-18-41.4 0.60 2.06 Tetrahydrofuran 598 ug/m3 05/31/22 16:38 109-99-974.2 22.2 123.6 Toluene 2.3J ug/m3 05/28/22 02:39 108-88-33.9 0.50 2.06 1,2,4-Trichlorobenzene ND ug/m3 05/28/22 02:39 120-82-115.5 10.1 2.06 1,1,1-Trichloroethane ND ug/m3 05/28/22 02:39 71-55-62.3 0.38 2.06 1,1,2-Trichloroethane ND ug/m3 05/28/22 02:39 79-00-51.1 0.41 2.06 Trichloroethene ND ug/m3 05/28/22 02:39 79-01-61.1 0.40 2.06 Trichlorofluoromethane ND ug/m3 05/28/22 02:39 75-69-42.3 0.48 2.06 1,1,2-Trichlorotrifluoroethane 1.1J ug/m3 05/28/22 02:39 76-13-13.2 0.60 2.06 1,2,4-Trimethylbenzene 1.7J ug/m3 05/28/22 02:39 95-63-62.1 0.73 2.06 1,3,5-Trimethylbenzene 1.2J ug/m3 05/28/22 02:39 108-67-82.1 0.60 2.06 Vinyl acetate ND ug/m3 05/28/22 02:39 108-05-41.5 0.43 2.06 Vinyl chloride ND ug/m3 05/28/22 02:39 75-01-41.1 0.18 2.06 m&p-Xylene 3.3J ug/m3 05/28/22 02:39 179601-23-13.6 1.3 2.06 o-Xylene 0.96J ug/m3 05/28/22 02:39 95-47-61.8 0.56 2.06 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1013-G Lab ID:92603519003 Collected:05/05/22 12:24 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR Acetone 791 ug/m3 05/28/22 03:16 67-64-1 E12.4 3.7 2.06 Benzene 50.2 ug/m3 05/28/22 03:16 71-43-20.67 0.23 2.06 Benzyl chloride ND ug/m3 05/28/22 03:16 100-44-75.4 1.8 2.06 Bromodichloromethane ND ug/m3 05/28/22 03:16 75-27-42.8 0.49 2.06 Bromoform ND ug/m3 05/28/22 03:16 75-25-210.8 3.3 2.06 Bromomethane ND ug/m3 05/28/22 03:16 74-83-91.6 0.31 2.06 1,3-Butadiene ND ug/m3 05/28/22 03:16 106-99-00.93 0.25 2.06 2-Butanone (MEK)4150 ug/m3 05/31/22 17:42 78-93-32970460988.8 Carbon disulfide 2.2 ug/m3 05/28/22 03:16 75-15-01.3 0.27 2.06 Carbon tetrachloride ND ug/m3 05/28/22 03:16 56-23-52.6 0.58 2.06 Chlorobenzene ND ug/m3 05/28/22 03:16 108-90-71.9 0.32 2.06 Chloroethane ND ug/m3 05/28/22 03:16 75-00-31.1 0.46 2.06 Chloroform ND ug/m3 05/28/22 03:16 67-66-31.0 0.38 2.06 Chloromethane 1.8 ug/m3 05/28/22 03:16 74-87-30.87 0.18 2.06 Cyclohexane 6.3 ug/m3 05/28/22 03:16 110-82-73.6 0.46 2.06 Dibromochloromethane ND ug/m3 05/28/22 03:16 124-48-13.6 1.1 2.06 1,2-Dibromoethane (EDB)ND ug/m3 05/28/22 03:16 106-93-41.6 0.62 2.06 1,2-Dichlorobenzene ND ug/m3 05/28/22 03:16 95-50-16.3 0.83 2.06 1,3-Dichlorobenzene ND ug/m3 05/28/22 03:16 541-73-16.3 1.0 2.06 1,4-Dichlorobenzene ND ug/m3 05/28/22 03:16 106-46-76.3 1.8 2.06 Dichlorodifluoromethane 3.3 ug/m3 05/28/22 03:16 75-71-82.1 0.39 2.06 1,1-Dichloroethane ND ug/m3 05/28/22 03:16 75-34-31.7 0.34 2.06 1,2-Dichloroethane ND ug/m3 05/28/22 03:16 107-06-21.7 0.40 2.06 1,1-Dichloroethene ND ug/m3 05/28/22 03:16 75-35-41.7 0.28 2.06 cis-1,2-Dichloroethene 1.1J ug/m3 05/28/22 03:16 156-59-21.7 0.40 2.06 trans-1,2-Dichloroethene ND ug/m3 05/28/22 03:16 156-60-51.7 0.35 2.06 1,2-Dichloropropane ND ug/m3 05/28/22 03:16 78-87-51.9 0.55 2.06 cis-1,3-Dichloropropene ND ug/m3 05/28/22 03:16 10061-01-54.8 0.53 2.06 trans-1,3-Dichloropropene ND ug/m3 05/28/22 03:16 10061-02-64.8 1.1 2.06 Dichlorotetrafluoroethane ND ug/m3 05/28/22 03:16 76-14-22.9 0.42 2.06 Ethanol 10.3 ug/m3 05/28/22 03:16 64-17-54.0 1.2 2.06 Ethyl acetate ND ug/m3 05/28/22 03:16 141-78-61.5 0.27 2.06 Ethylbenzene 7.7 ug/m3 05/28/22 03:16 100-41-44.5 0.64 2.06 4-Ethyltoluene 1.5J ug/m3 05/28/22 03:16 622-96-85.2 0.97 2.06 n-Heptane 5.0 ug/m3 05/28/22 03:16 142-82-51.7 0.37 2.06 Hexachloro-1,3-butadiene ND ug/m3 05/28/22 03:16 87-68-311.2 2.5 2.06 n-Hexane ND ug/m3 05/28/22 03:16 110-54-31.5 0.39 2.06 2-Hexanone ND ug/m3 05/28/22 03:16 591-78-68.6 0.91 2.06 Methylene Chloride ND ug/m3 05/28/22 03:16 75-09-27.3 1.2 2.06 4-Methyl-2-pentanone (MIBK)ND ug/m3 05/28/22 03:16 108-10-18.6 0.66 2.06 Methyl-tert-butyl ether ND ug/m3 05/28/22 03:16 1634-04-47.5 0.26 2.06 Naphthalene ND ug/m3 05/28/22 03:16 91-20-35.5 4.5 2.06 2-Propanol 8.2 ug/m3 05/28/22 03:16 67-63-05.2 1.0 2.06 Propylene ND ug/m3 05/28/22 03:16 115-07-11.8 0.27 2.06 Styrene ND ug/m3 05/28/22 03:16 100-42-51.8 0.79 2.06 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1013-G Lab ID:92603519003 Collected:05/05/22 12:24 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR 1,1,2,2-Tetrachloroethane ND ug/m3 05/28/22 03:16 79-34-52.9 0.77 2.06 Tetrachloroethene 49.1 ug/m3 05/28/22 03:16 127-18-41.4 0.60 2.06 Tetrahydrofuran 1660 ug/m3 05/31/22 17:42 109-99-9593178988.8 Toluene 150 ug/m3 05/28/22 03:16 108-88-33.9 0.50 2.06 1,2,4-Trichlorobenzene ND ug/m3 05/28/22 03:16 120-82-115.5 10.1 2.06 1,1,1-Trichloroethane ND ug/m3 05/28/22 03:16 71-55-62.3 0.38 2.06 1,1,2-Trichloroethane ND ug/m3 05/28/22 03:16 79-00-51.1 0.41 2.06 Trichloroethene 1.2 ug/m3 05/28/22 03:16 79-01-61.1 0.40 2.06 Trichlorofluoromethane ND ug/m3 05/28/22 03:16 75-69-42.3 0.48 2.06 1,1,2-Trichlorotrifluoroethane ND ug/m3 05/28/22 03:16 76-13-13.2 0.60 2.06 1,2,4-Trimethylbenzene 1.9J ug/m3 05/28/22 03:16 95-63-62.1 0.73 2.06 1,3,5-Trimethylbenzene 1.5J ug/m3 05/28/22 03:16 108-67-82.1 0.60 2.06 Vinyl acetate ND ug/m3 05/28/22 03:16 108-05-41.5 0.43 2.06 Vinyl chloride ND ug/m3 05/28/22 03:16 75-01-41.1 0.18 2.06 m&p-Xylene 31.9 ug/m3 05/28/22 03:16 179601-23-13.6 1.3 2.06 o-Xylene 4.2 ug/m3 05/28/22 03:16 95-47-61.8 0.56 2.06 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1014-A Lab ID:92603519004 Collected:05/05/22 13:07 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR Acetone 592 ug/m3 05/28/22 03:52 67-64-1 E13.0 3.9 2.15 Benzene 1.2 ug/m3 05/28/22 03:52 71-43-20.70 0.25 2.15 Benzyl chloride ND ug/m3 05/28/22 03:52 100-44-75.7 1.9 2.15 Bromodichloromethane ND ug/m3 05/28/22 03:52 75-27-42.9 0.51 2.15 Bromoform ND ug/m3 05/28/22 03:52 75-25-211.3 3.5 2.15 Bromomethane ND ug/m3 05/28/22 03:52 74-83-91.7 0.32 2.15 1,3-Butadiene ND ug/m3 05/28/22 03:52 106-99-00.97 0.26 2.15 2-Butanone (MEK)709J ug/m3 05/31/22 17:10 78-93-31550240516 Carbon disulfide 1.6 ug/m3 05/28/22 03:52 75-15-01.4 0.28 2.15 Carbon tetrachloride ND ug/m3 05/28/22 03:52 56-23-52.8 0.60 2.15 Chlorobenzene ND ug/m3 05/28/22 03:52 108-90-72.0 0.33 2.15 Chloroethane ND ug/m3 05/28/22 03:52 75-00-31.2 0.48 2.15 Chloroform ND ug/m3 05/28/22 03:52 67-66-31.1 0.39 2.15 Chloromethane 2.5 ug/m3 05/28/22 03:52 74-87-30.90 0.18 2.15 Cyclohexane 2.8J ug/m3 05/28/22 03:52 110-82-73.8 0.48 2.15 Dibromochloromethane ND ug/m3 05/28/22 03:52 124-48-13.7 1.1 2.15 1,2-Dibromoethane (EDB)ND ug/m3 05/28/22 03:52 106-93-41.7 0.64 2.15 1,2-Dichlorobenzene ND ug/m3 05/28/22 03:52 95-50-16.6 0.87 2.15 1,3-Dichlorobenzene ND ug/m3 05/28/22 03:52 541-73-16.6 1.1 2.15 1,4-Dichlorobenzene ND ug/m3 05/28/22 03:52 106-46-76.6 1.9 2.15 Dichlorodifluoromethane 3.4 ug/m3 05/28/22 03:52 75-71-82.2 0.40 2.15 1,1-Dichloroethane ND ug/m3 05/28/22 03:52 75-34-31.8 0.35 2.15 1,2-Dichloroethane ND ug/m3 05/28/22 03:52 107-06-21.8 0.42 2.15 1,1-Dichloroethene ND ug/m3 05/28/22 03:52 75-35-41.7 0.30 2.15 cis-1,2-Dichloroethene ND ug/m3 05/28/22 03:52 156-59-21.7 0.42 2.15 trans-1,2-Dichloroethene 1.8 ug/m3 05/28/22 03:52 156-60-51.7 0.36 2.15 1,2-Dichloropropane ND ug/m3 05/28/22 03:52 78-87-52.0 0.58 2.15 cis-1,3-Dichloropropene ND ug/m3 05/28/22 03:52 10061-01-55.0 0.55 2.15 trans-1,3-Dichloropropene ND ug/m3 05/28/22 03:52 10061-02-65.0 1.2 2.15 Dichlorotetrafluoroethane ND ug/m3 05/28/22 03:52 76-14-23.1 0.43 2.15 Ethanol 14.6 ug/m3 05/28/22 03:52 64-17-54.1 1.3 2.15 Ethyl acetate ND ug/m3 05/28/22 03:52 141-78-61.6 0.28 2.15 Ethylbenzene 2.2J ug/m3 05/28/22 03:52 100-41-44.7 0.66 2.15 4-Ethyltoluene ND ug/m3 05/28/22 03:52 622-96-85.4 1.0 2.15 n-Heptane 1.8 ug/m3 05/28/22 03:52 142-82-51.8 0.39 2.15 Hexachloro-1,3-butadiene ND ug/m3 05/28/22 03:52 87-68-311.7 2.6 2.15 n-Hexane ND ug/m3 05/28/22 03:52 110-54-31.5 0.41 2.15 2-Hexanone ND ug/m3 05/28/22 03:52 591-78-68.9 0.95 2.15 Methylene Chloride ND ug/m3 05/28/22 03:52 75-09-27.6 1.3 2.15 4-Methyl-2-pentanone (MIBK)ND ug/m3 05/28/22 03:52 108-10-18.9 0.69 2.15 Methyl-tert-butyl ether ND ug/m3 05/28/22 03:52 1634-04-47.9 0.27 2.15 Naphthalene ND ug/m3 05/28/22 03:52 91-20-35.7 4.7 2.15 2-Propanol 18.7 ug/m3 05/28/22 03:52 67-63-05.4 1.1 2.15 Propylene ND ug/m3 05/28/22 03:52 115-07-11.9 0.28 2.15 Styrene ND ug/m3 05/28/22 03:52 100-42-51.9 0.83 2.15 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1014-A Lab ID:92603519004 Collected:05/05/22 13:07 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR 1,1,2,2-Tetrachloroethane ND ug/m3 05/28/22 03:52 79-34-53.0 0.80 2.15 Tetrachloroethene 0.83J ug/m3 05/28/22 03:52 127-18-41.5 0.63 2.15 Tetrahydrofuran 602 ug/m3 05/31/22 17:10 109-99-931092.9 516 Toluene 7.8 ug/m3 05/28/22 03:52 108-88-34.1 0.52 2.15 1,2,4-Trichlorobenzene ND ug/m3 05/28/22 03:52 120-82-116.2 10.5 2.15 1,1,1-Trichloroethane ND ug/m3 05/28/22 03:52 71-55-62.4 0.40 2.15 1,1,2-Trichloroethane ND ug/m3 05/28/22 03:52 79-00-51.2 0.42 2.15 Trichloroethene 4.1 ug/m3 05/28/22 03:52 79-01-61.2 0.42 2.15 Trichlorofluoromethane ND ug/m3 05/28/22 03:52 75-69-42.5 0.50 2.15 1,1,2-Trichlorotrifluoroethane 0.67J ug/m3 05/28/22 03:52 76-13-13.4 0.62 2.15 1,2,4-Trimethylbenzene 2.0J ug/m3 05/28/22 03:52 95-63-62.1 0.76 2.15 1,3,5-Trimethylbenzene 1.4J ug/m3 05/28/22 03:52 108-67-82.1 0.62 2.15 Vinyl acetate ND ug/m3 05/28/22 03:52 108-05-41.5 0.45 2.15 Vinyl chloride ND ug/m3 05/28/22 03:52 75-01-41.1 0.19 2.15 m&p-Xylene 6.2 ug/m3 05/28/22 03:52 179601-23-13.8 1.4 2.15 o-Xylene 2.0 ug/m3 05/28/22 03:52 95-47-61.9 0.58 2.15 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1014-D Lab ID:92603519005 Collected:05/05/22 13:20 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR Acetone 986 ug/m3 05/28/22 04:29 67-64-1 E12.0 3.6 1.98 Benzene 2.6 ug/m3 05/28/22 04:29 71-43-20.64 0.23 1.98 Benzyl chloride ND ug/m3 05/28/22 04:29 100-44-75.2 1.8 1.98 Bromodichloromethane ND ug/m3 05/28/22 04:29 75-27-42.7 0.47 1.98 Bromoform ND ug/m3 05/28/22 04:29 75-25-210.4 3.2 1.98 Bromomethane ND ug/m3 05/28/22 04:29 74-83-91.6 0.30 1.98 1,3-Butadiene ND ug/m3 05/28/22 04:29 106-99-00.89 0.24 1.98 2-Butanone (MEK)4510 ug/m3 05/31/22 18:13 78-93-32850442950.4 Carbon disulfide 11.1 ug/m3 05/28/22 04:29 75-15-01.3 0.26 1.98 Carbon tetrachloride ND ug/m3 05/28/22 04:29 56-23-52.5 0.55 1.98 Chlorobenzene ND ug/m3 05/28/22 04:29 108-90-71.9 0.31 1.98 Chloroethane ND ug/m3 05/28/22 04:29 75-00-31.1 0.44 1.98 Chloroform ND ug/m3 05/28/22 04:29 67-66-30.98 0.36 1.98 Chloromethane 2.9 ug/m3 05/28/22 04:29 74-87-30.83 0.17 1.98 Cyclohexane 4.9 ug/m3 05/28/22 04:29 110-82-73.5 0.44 1.98 Dibromochloromethane ND ug/m3 05/28/22 04:29 124-48-13.4 1.0 1.98 1,2-Dibromoethane (EDB)ND ug/m3 05/28/22 04:29 106-93-41.5 0.59 1.98 1,2-Dichlorobenzene ND ug/m3 05/28/22 04:29 95-50-16.1 0.80 1.98 1,3-Dichlorobenzene ND ug/m3 05/28/22 04:29 541-73-16.1 1.0 1.98 1,4-Dichlorobenzene 2.3J ug/m3 05/28/22 04:29 106-46-76.1 1.7 1.98 Dichlorodifluoromethane 3.4 ug/m3 05/28/22 04:29 75-71-82.0 0.37 1.98 1,1-Dichloroethane ND ug/m3 05/28/22 04:29 75-34-31.6 0.33 1.98 1,2-Dichloroethane ND ug/m3 05/28/22 04:29 107-06-21.6 0.38 1.98 1,1-Dichloroethene ND ug/m3 05/28/22 04:29 75-35-41.6 0.27 1.98 cis-1,2-Dichloroethene 11.6 ug/m3 05/28/22 04:29 156-59-21.6 0.39 1.98 trans-1,2-Dichloroethene ND ug/m3 05/28/22 04:29 156-60-51.6 0.33 1.98 1,2-Dichloropropane ND ug/m3 05/28/22 04:29 78-87-51.9 0.53 1.98 cis-1,3-Dichloropropene ND ug/m3 05/28/22 04:29 10061-01-54.6 0.50 1.98 trans-1,3-Dichloropropene ND ug/m3 05/28/22 04:29 10061-02-64.6 1.1 1.98 Dichlorotetrafluoroethane ND ug/m3 05/28/22 04:29 76-14-22.8 0.40 1.98 Ethanol 26.9 ug/m3 05/28/22 04:29 64-17-53.8 1.2 1.98 Ethyl acetate ND ug/m3 05/28/22 04:29 141-78-61.5 0.26 1.98 Ethylbenzene 3.8J ug/m3 05/28/22 04:29 100-41-44.4 0.61 1.98 4-Ethyltoluene 2.0J ug/m3 05/28/22 04:29 622-96-85.0 0.93 1.98 n-Heptane ND ug/m3 05/28/22 04:29 142-82-51.6 0.36 1.98 Hexachloro-1,3-butadiene ND ug/m3 05/28/22 04:29 87-68-310.7 2.4 1.98 n-Hexane ND ug/m3 05/28/22 04:29 110-54-31.4 0.38 1.98 2-Hexanone ND ug/m3 05/28/22 04:29 591-78-68.2 0.88 1.98 Methylene Chloride 1.5J ug/m3 05/28/22 04:29 75-09-27.0 1.2 1.98 4-Methyl-2-pentanone (MIBK)ND ug/m3 05/28/22 04:29 108-10-18.2 0.64 1.98 Methyl-tert-butyl ether ND ug/m3 05/28/22 04:29 1634-04-47.2 0.25 1.98 Naphthalene ND ug/m3 05/28/22 04:29 91-20-35.3 4.3 1.98 2-Propanol 12.9 ug/m3 05/28/22 04:29 67-63-05.0 1.0 1.98 Propylene ND ug/m3 05/28/22 04:29 115-07-11.7 0.26 1.98 Styrene 1.6J ug/m3 05/28/22 04:29 100-42-51.7 0.76 1.98 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1014-D Lab ID:92603519005 Collected:05/05/22 13:20 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR 1,1,2,2-Tetrachloroethane ND ug/m3 05/28/22 04:29 79-34-52.8 0.74 1.98 Tetrachloroethene 16.8 ug/m3 05/28/22 04:29 127-18-41.4 0.58 1.98 Tetrahydrofuran 1850 ug/m3 05/31/22 18:13 109-99-9570171950.4 Toluene 9.9 ug/m3 05/28/22 04:29 108-88-33.8 0.48 1.98 1,2,4-Trichlorobenzene ND ug/m3 05/28/22 04:29 120-82-114.9 9.7 1.98 1,1,1-Trichloroethane ND ug/m3 05/28/22 04:29 71-55-62.2 0.37 1.98 1,1,2-Trichloroethane ND ug/m3 05/28/22 04:29 79-00-51.1 0.39 1.98 Trichloroethene 5.3 ug/m3 05/28/22 04:29 79-01-61.1 0.39 1.98 Trichlorofluoromethane ND ug/m3 05/28/22 04:29 75-69-42.3 0.46 1.98 1,1,2-Trichlorotrifluoroethane 0.76J ug/m3 05/28/22 04:29 76-13-13.1 0.57 1.98 1,2,4-Trimethylbenzene 5.3 ug/m3 05/28/22 04:29 95-63-62.0 0.70 1.98 1,3,5-Trimethylbenzene 2.0 ug/m3 05/28/22 04:29 108-67-82.0 0.57 1.98 Vinyl acetate ND ug/m3 05/28/22 04:29 108-05-41.4 0.41 1.98 Vinyl chloride ND ug/m3 05/28/22 04:29 75-01-41.0 0.17 1.98 m&p-Xylene 7.8 ug/m3 05/28/22 04:29 179601-23-13.5 1.3 1.98 o-Xylene 2.7 ug/m3 05/28/22 04:29 95-47-61.7 0.54 1.98 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1014-G Lab ID:92603519006 Collected:05/05/22 13:46 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR Acetone 177 ug/m3 05/28/22 05:05 67-64-112.4 3.7 2.06 Benzene ND ug/m3 05/28/22 05:05 71-43-20.67 0.23 2.06 Benzyl chloride ND ug/m3 05/28/22 05:05 100-44-75.4 1.8 2.06 Bromodichloromethane ND ug/m3 05/28/22 05:05 75-27-42.8 0.49 2.06 Bromoform ND ug/m3 05/28/22 05:05 75-25-210.8 3.3 2.06 Bromomethane ND ug/m3 05/28/22 05:05 74-83-91.6 0.31 2.06 1,3-Butadiene ND ug/m3 05/28/22 05:05 106-99-00.93 0.25 2.06 2-Butanone (MEK)646 ug/m3 05/31/22 15:34 78-93-312419.2 41.2 Carbon disulfide 24.2 ug/m3 05/28/22 05:05 75-15-01.3 0.27 2.06 Carbon tetrachloride ND ug/m3 05/28/22 05:05 56-23-52.6 0.58 2.06 Chlorobenzene ND ug/m3 05/28/22 05:05 108-90-71.9 0.32 2.06 Chloroethane ND ug/m3 05/28/22 05:05 75-00-31.1 0.46 2.06 Chloroform ND ug/m3 05/28/22 05:05 67-66-31.0 0.38 2.06 Chloromethane 1.5 ug/m3 05/28/22 05:05 74-87-30.87 0.18 2.06 Cyclohexane 6.8 ug/m3 05/28/22 05:05 110-82-73.6 0.46 2.06 Dibromochloromethane ND ug/m3 05/28/22 05:05 124-48-13.6 1.1 2.06 1,2-Dibromoethane (EDB)ND ug/m3 05/28/22 05:05 106-93-41.6 0.62 2.06 1,2-Dichlorobenzene ND ug/m3 05/28/22 05:05 95-50-16.3 0.83 2.06 1,3-Dichlorobenzene ND ug/m3 05/28/22 05:05 541-73-16.3 1.0 2.06 1,4-Dichlorobenzene ND ug/m3 05/28/22 05:05 106-46-76.3 1.8 2.06 Dichlorodifluoromethane 3.6 ug/m3 05/28/22 05:05 75-71-82.1 0.39 2.06 1,1-Dichloroethane ND ug/m3 05/28/22 05:05 75-34-31.7 0.34 2.06 1,2-Dichloroethane ND ug/m3 05/28/22 05:05 107-06-21.7 0.40 2.06 1,1-Dichloroethene ND ug/m3 05/28/22 05:05 75-35-41.7 0.28 2.06 cis-1,2-Dichloroethene ND ug/m3 05/28/22 05:05 156-59-21.7 0.40 2.06 trans-1,2-Dichloroethene ND ug/m3 05/28/22 05:05 156-60-51.7 0.35 2.06 1,2-Dichloropropane ND ug/m3 05/28/22 05:05 78-87-51.9 0.55 2.06 cis-1,3-Dichloropropene ND ug/m3 05/28/22 05:05 10061-01-54.8 0.53 2.06 trans-1,3-Dichloropropene ND ug/m3 05/28/22 05:05 10061-02-64.8 1.1 2.06 Dichlorotetrafluoroethane ND ug/m3 05/28/22 05:05 76-14-22.9 0.42 2.06 Ethanol 13.5 ug/m3 05/28/22 05:05 64-17-54.0 1.2 2.06 Ethyl acetate ND ug/m3 05/28/22 05:05 141-78-61.5 0.27 2.06 Ethylbenzene 1.5J ug/m3 05/28/22 05:05 100-41-44.5 0.64 2.06 4-Ethyltoluene ND ug/m3 05/28/22 05:05 622-96-85.2 0.97 2.06 n-Heptane 1.7 ug/m3 05/28/22 05:05 142-82-51.7 0.37 2.06 Hexachloro-1,3-butadiene ND ug/m3 05/28/22 05:05 87-68-311.2 2.5 2.06 n-Hexane ND ug/m3 05/28/22 05:05 110-54-31.5 0.39 2.06 2-Hexanone ND ug/m3 05/28/22 05:05 591-78-68.6 0.91 2.06 Methylene Chloride ND ug/m3 05/28/22 05:05 75-09-27.3 1.2 2.06 4-Methyl-2-pentanone (MIBK)ND ug/m3 05/28/22 05:05 108-10-18.6 0.66 2.06 Methyl-tert-butyl ether ND ug/m3 05/28/22 05:05 1634-04-47.5 0.26 2.06 Naphthalene ND ug/m3 05/28/22 05:05 91-20-35.5 4.5 2.06 2-Propanol 28.7 ug/m3 05/28/22 05:05 67-63-05.2 1.0 2.06 Propylene ND ug/m3 05/28/22 05:05 115-07-11.8 0.27 2.06 Styrene ND ug/m3 05/28/22 05:05 100-42-51.8 0.79 2.06 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1014-G Lab ID:92603519006 Collected:05/05/22 13:46 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR 1,1,2,2-Tetrachloroethane ND ug/m3 05/28/22 05:05 79-34-52.9 0.77 2.06 Tetrachloroethene 0.70J ug/m3 05/28/22 05:05 127-18-41.4 0.60 2.06 Tetrahydrofuran 241 ug/m3 05/31/22 15:34 109-99-924.7 7.4 41.2 Toluene 3.4J ug/m3 05/28/22 05:05 108-88-33.9 0.50 2.06 1,2,4-Trichlorobenzene ND ug/m3 05/28/22 05:05 120-82-115.5 10.1 2.06 1,1,1-Trichloroethane ND ug/m3 05/28/22 05:05 71-55-62.3 0.38 2.06 1,1,2-Trichloroethane ND ug/m3 05/28/22 05:05 79-00-51.1 0.41 2.06 Trichloroethene ND ug/m3 05/28/22 05:05 79-01-61.1 0.40 2.06 Trichlorofluoromethane ND ug/m3 05/28/22 05:05 75-69-42.3 0.48 2.06 1,1,2-Trichlorotrifluoroethane 0.88J ug/m3 05/28/22 05:05 76-13-13.2 0.60 2.06 1,2,4-Trimethylbenzene 1.5J ug/m3 05/28/22 05:05 95-63-62.1 0.73 2.06 1,3,5-Trimethylbenzene ND ug/m3 05/28/22 05:05 108-67-82.1 0.60 2.06 Vinyl acetate ND ug/m3 05/28/22 05:05 108-05-41.5 0.43 2.06 Vinyl chloride ND ug/m3 05/28/22 05:05 75-01-41.1 0.18 2.06 m&p-Xylene 3.1J ug/m3 05/28/22 05:05 179601-23-13.6 1.3 2.06 o-Xylene 1.0J ug/m3 05/28/22 05:05 95-47-61.8 0.56 2.06 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1015-A Lab ID:92603519007 Collected:05/05/22 14:10 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR Acetone 391 ug/m3 05/28/22 21:38 67-64-113.0 3.9 2.15 Benzene 0.74 ug/m3 05/28/22 21:38 71-43-20.70 0.25 2.15 Benzyl chloride ND ug/m3 05/28/22 21:38 100-44-75.7 1.9 2.15 Bromodichloromethane ND ug/m3 05/28/22 21:38 75-27-42.9 0.51 2.15 Bromoform ND ug/m3 05/28/22 21:38 75-25-211.3 3.5 2.15 Bromomethane ND ug/m3 05/28/22 21:38 74-83-91.7 0.32 2.15 1,3-Butadiene ND ug/m3 05/28/22 21:38 106-99-00.97 0.26 2.15 2-Butanone (MEK)1300 ug/m3 05/30/22 11:57 78-93-319430.0 64.5 Carbon disulfide 4.7 ug/m3 05/28/22 21:38 75-15-01.4 0.28 2.15 Carbon tetrachloride ND ug/m3 05/28/22 21:38 56-23-52.8 0.60 2.15 Chlorobenzene ND ug/m3 05/28/22 21:38 108-90-72.0 0.33 2.15 Chloroethane ND ug/m3 05/28/22 21:38 75-00-31.2 0.48 2.15 Chloroform ND ug/m3 05/28/22 21:38 67-66-31.1 0.39 2.15 Chloromethane 1.2 ug/m3 05/28/22 21:38 74-87-30.90 0.18 2.15 Cyclohexane 4.4 ug/m3 05/28/22 21:38 110-82-73.8 0.48 2.15 Dibromochloromethane ND ug/m3 05/28/22 21:38 124-48-13.7 1.1 2.15 1,2-Dibromoethane (EDB)ND ug/m3 05/28/22 21:38 106-93-43.4 0.64 2.15 1,2-Dichlorobenzene ND ug/m3 05/28/22 21:38 95-50-16.6 0.87 2.15 1,3-Dichlorobenzene ND ug/m3 05/28/22 21:38 541-73-16.6 1.1 2.15 1,4-Dichlorobenzene ND ug/m3 05/28/22 21:38 106-46-76.6 1.9 2.15 Dichlorodifluoromethane 2.4 ug/m3 05/28/22 21:38 75-71-82.2 0.40 2.15 1,1-Dichloroethane ND ug/m3 05/28/22 21:38 75-34-31.8 0.35 2.15 1,2-Dichloroethane ND ug/m3 05/28/22 21:38 107-06-21.8 0.42 2.15 1,1-Dichloroethene ND ug/m3 05/28/22 21:38 75-35-41.7 0.30 2.15 cis-1,2-Dichloroethene ND ug/m3 05/28/22 21:38 156-59-21.7 0.42 2.15 trans-1,2-Dichloroethene ND ug/m3 05/28/22 21:38 156-60-51.7 0.36 2.15 1,2-Dichloropropane ND ug/m3 05/28/22 21:38 78-87-52.0 0.58 2.15 cis-1,3-Dichloropropene ND ug/m3 05/28/22 21:38 10061-01-55.0 0.55 2.15 trans-1,3-Dichloropropene ND ug/m3 05/28/22 21:38 10061-02-65.0 1.2 2.15 Dichlorotetrafluoroethane ND ug/m3 05/28/22 21:38 76-14-23.1 0.43 2.15 Ethanol 11.5 ug/m3 05/28/22 21:38 64-17-54.1 1.3 2.15 Ethyl acetate ND ug/m3 05/28/22 21:38 141-78-61.6 0.28 2.15 Ethylbenzene ND ug/m3 05/28/22 21:38 100-41-41.9 0.66 2.15 4-Ethyltoluene 2.1J ug/m3 05/28/22 21:38 622-96-85.4 1.0 2.15 n-Heptane ND ug/m3 05/28/22 21:38 142-82-51.8 0.39 2.15 Hexachloro-1,3-butadiene 4.4J ug/m3 05/28/22 21:38 87-68-311.7 2.6 2.15 n-Hexane ND ug/m3 05/28/22 21:38 110-54-31.5 0.41 2.15 2-Hexanone ND ug/m3 05/28/22 21:38 591-78-68.9 0.95 2.15 Methylene Chloride ND ug/m3 05/28/22 21:38 75-09-27.6 1.3 2.15 4-Methyl-2-pentanone (MIBK)ND ug/m3 05/28/22 21:38 108-10-18.9 0.69 2.15 Methyl-tert-butyl ether ND ug/m3 05/28/22 21:38 1634-04-47.9 0.27 2.15 Naphthalene ND ug/m3 05/28/22 21:38 91-20-35.7 4.7 2.15 2-Propanol 13.9 ug/m3 05/28/22 21:38 67-63-05.4 1.1 2.15 Propylene ND ug/m3 05/28/22 21:38 115-07-11.9 0.28 2.15 Styrene ND ug/m3 05/28/22 21:38 100-42-54.7 0.83 2.15 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1015-A Lab ID:92603519007 Collected:05/05/22 14:10 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR 1,1,2,2-Tetrachloroethane ND ug/m3 05/28/22 21:38 79-34-53.0 0.80 2.15 Tetrachloroethene 2.5 ug/m3 05/28/22 21:38 127-18-41.5 0.63 2.15 Tetrahydrofuran 587 ug/m3 05/30/22 11:57 109-99-938.7 11.6 64.5 Toluene 2.3 ug/m3 05/28/22 21:38 108-88-31.6 0.52 2.15 1,2,4-Trichlorobenzene ND ug/m3 05/28/22 21:38 120-82-116.2 10.5 2.15 1,1,1-Trichloroethane ND ug/m3 05/28/22 21:38 71-55-62.4 0.40 2.15 1,1,2-Trichloroethane ND ug/m3 05/28/22 21:38 79-00-52.4 0.42 2.15 Trichloroethene 1.6 ug/m3 05/28/22 21:38 79-01-61.2 0.42 2.15 Trichlorofluoromethane 1.6J ug/m3 05/28/22 21:38 75-69-42.5 0.50 2.15 1,1,2-Trichlorotrifluoroethane ND ug/m3 05/28/22 21:38 76-13-13.4 0.62 2.15 1,2,4-Trimethylbenzene 3.7 ug/m3 05/28/22 21:38 95-63-62.1 0.76 2.15 1,3,5-Trimethylbenzene 2.3 ug/m3 05/28/22 21:38 108-67-82.1 0.62 2.15 Vinyl acetate ND ug/m3 05/28/22 21:38 108-05-41.5 0.45 2.15 Vinyl chloride ND ug/m3 05/28/22 21:38 75-01-40.56 0.19 2.15 m&p-Xylene 4.3 ug/m3 05/28/22 21:38 179601-23-13.8 1.4 2.15 o-Xylene 2.1 ug/m3 05/28/22 21:38 95-47-61.9 0.58 2.15 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1015-D Lab ID:92603519008 Collected:05/05/22 14:26 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR Acetone 47.1 ug/m3 05/28/22 21:04 67-64-113.0 3.9 2.15 Benzene 0.31J ug/m3 05/28/22 21:04 71-43-20.70 0.25 2.15 Benzyl chloride ND ug/m3 05/28/22 21:04 100-44-75.7 1.9 2.15 Bromodichloromethane ND ug/m3 05/28/22 21:04 75-27-42.9 0.51 2.15 Bromoform ND ug/m3 05/28/22 21:04 75-25-211.3 3.5 2.15 Bromomethane ND ug/m3 05/28/22 21:04 74-83-91.7 0.32 2.15 1,3-Butadiene ND ug/m3 05/28/22 21:04 106-99-00.97 0.26 2.15 2-Butanone (MEK)67.4 ug/m3 05/28/22 21:04 78-93-36.4 1.0 2.15 Carbon disulfide ND ug/m3 05/28/22 21:04 75-15-01.4 0.28 2.15 Carbon tetrachloride ND ug/m3 05/28/22 21:04 56-23-52.8 0.60 2.15 Chlorobenzene ND ug/m3 05/28/22 21:04 108-90-72.0 0.33 2.15 Chloroethane ND ug/m3 05/28/22 21:04 75-00-31.2 0.48 2.15 Chloroform ND ug/m3 05/28/22 21:04 67-66-31.1 0.39 2.15 Chloromethane 1.0 ug/m3 05/28/22 21:04 74-87-30.90 0.18 2.15 Cyclohexane 3.4J ug/m3 05/28/22 21:04 110-82-73.8 0.48 2.15 Dibromochloromethane ND ug/m3 05/28/22 21:04 124-48-13.7 1.1 2.15 1,2-Dibromoethane (EDB)ND ug/m3 05/28/22 21:04 106-93-43.4 0.64 2.15 1,2-Dichlorobenzene ND ug/m3 05/28/22 21:04 95-50-16.6 0.87 2.15 1,3-Dichlorobenzene ND ug/m3 05/28/22 21:04 541-73-16.6 1.1 2.15 1,4-Dichlorobenzene ND ug/m3 05/28/22 21:04 106-46-76.6 1.9 2.15 Dichlorodifluoromethane 2.8 ug/m3 05/28/22 21:04 75-71-82.2 0.40 2.15 1,1-Dichloroethane ND ug/m3 05/28/22 21:04 75-34-31.8 0.35 2.15 1,2-Dichloroethane ND ug/m3 05/28/22 21:04 107-06-21.8 0.42 2.15 1,1-Dichloroethene ND ug/m3 05/28/22 21:04 75-35-41.7 0.30 2.15 cis-1,2-Dichloroethene ND ug/m3 05/28/22 21:04 156-59-21.7 0.42 2.15 trans-1,2-Dichloroethene ND ug/m3 05/28/22 21:04 156-60-51.7 0.36 2.15 1,2-Dichloropropane ND ug/m3 05/28/22 21:04 78-87-52.0 0.58 2.15 cis-1,3-Dichloropropene ND ug/m3 05/28/22 21:04 10061-01-55.0 0.55 2.15 trans-1,3-Dichloropropene ND ug/m3 05/28/22 21:04 10061-02-65.0 1.2 2.15 Dichlorotetrafluoroethane ND ug/m3 05/28/22 21:04 76-14-23.1 0.43 2.15 Ethanol 10.9 ug/m3 05/28/22 21:04 64-17-54.1 1.3 2.15 Ethyl acetate ND ug/m3 05/28/22 21:04 141-78-61.6 0.28 2.15 Ethylbenzene ND ug/m3 05/28/22 21:04 100-41-41.9 0.66 2.15 4-Ethyltoluene ND ug/m3 05/28/22 21:04 622-96-85.4 1.0 2.15 n-Heptane ND ug/m3 05/28/22 21:04 142-82-51.8 0.39 2.15 Hexachloro-1,3-butadiene ND ug/m3 05/28/22 21:04 87-68-311.7 2.6 2.15 n-Hexane ND ug/m3 05/28/22 21:04 110-54-31.5 0.41 2.15 2-Hexanone 2.7J ug/m3 05/28/22 21:04 591-78-68.9 0.95 2.15 Methylene Chloride ND ug/m3 05/28/22 21:04 75-09-27.6 1.3 2.15 4-Methyl-2-pentanone (MIBK)ND ug/m3 05/28/22 21:04 108-10-18.9 0.69 2.15 Methyl-tert-butyl ether ND ug/m3 05/28/22 21:04 1634-04-47.9 0.27 2.15 Naphthalene ND ug/m3 05/28/22 21:04 91-20-35.7 4.7 2.15 2-Propanol 9.7 ug/m3 05/28/22 21:04 67-63-05.4 1.1 2.15 Propylene ND ug/m3 05/28/22 21:04 115-07-11.9 0.28 2.15 Styrene ND ug/m3 05/28/22 21:04 100-42-54.7 0.83 2.15 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1015-D Lab ID:92603519008 Collected:05/05/22 14:26 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR 1,1,2,2-Tetrachloroethane ND ug/m3 05/28/22 21:04 79-34-53.0 0.80 2.15 Tetrachloroethene ND ug/m3 05/28/22 21:04 127-18-41.5 0.63 2.15 Tetrahydrofuran 26.7 ug/m3 05/28/22 21:04 109-99-91.3 0.39 2.15 Toluene 1.6J ug/m3 05/28/22 21:04 108-88-31.6 0.52 2.15 1,2,4-Trichlorobenzene ND ug/m3 05/28/22 21:04 120-82-116.2 10.5 2.15 1,1,1-Trichloroethane ND ug/m3 05/28/22 21:04 71-55-62.4 0.40 2.15 1,1,2-Trichloroethane ND ug/m3 05/28/22 21:04 79-00-52.4 0.42 2.15 Trichloroethene 1.5 ug/m3 05/28/22 21:04 79-01-61.2 0.42 2.15 Trichlorofluoromethane 2.2J ug/m3 05/28/22 21:04 75-69-42.5 0.50 2.15 1,1,2-Trichlorotrifluoroethane 0.63J ug/m3 05/28/22 21:04 76-13-13.4 0.62 2.15 1,2,4-Trimethylbenzene ND ug/m3 05/28/22 21:04 95-63-62.1 0.76 2.15 1,3,5-Trimethylbenzene ND ug/m3 05/28/22 21:04 108-67-82.1 0.62 2.15 Vinyl acetate ND ug/m3 05/28/22 21:04 108-05-41.5 0.45 2.15 Vinyl chloride ND ug/m3 05/28/22 21:04 75-01-40.56 0.19 2.15 m&p-Xylene ND ug/m3 05/28/22 21:04 179601-23-13.8 1.4 2.15 o-Xylene ND ug/m3 05/28/22 21:04 95-47-61.9 0.58 2.15 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1015-G Lab ID:92603519009 Collected:05/05/22 15:25 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR Acetone 662 ug/m3 05/28/22 22:12 67-64-111.5 3.4 1.9 Benzene ND ug/m3 05/28/22 22:12 71-43-20.62 0.22 1.9 Benzyl chloride ND ug/m3 05/28/22 22:12 100-44-75.0 1.7 1.9 Bromodichloromethane ND ug/m3 05/28/22 22:12 75-27-42.6 0.45 1.9 Bromoform ND ug/m3 05/28/22 22:12 75-25-2103.1 1.9 Bromomethane ND ug/m3 05/28/22 22:12 74-83-91.5 0.28 1.9 1,3-Butadiene ND ug/m3 05/28/22 22:12 106-99-00.86 0.23 1.9 2-Butanone (MEK)2130 ug/m3 05/30/22 12:29 78-93-334253.0 114 Carbon disulfide 1.0J ug/m3 05/28/22 22:12 75-15-01.2 0.25 1.9 Carbon tetrachloride ND ug/m3 05/28/22 22:12 56-23-52.4 0.53 1.9 Chlorobenzene ND ug/m3 05/28/22 22:12 108-90-71.8 0.29 1.9 Chloroethane ND ug/m3 05/28/22 22:12 75-00-31.0 0.43 1.9 Chloroform ND ug/m3 05/28/22 22:12 67-66-30.94 0.35 1.9 Chloromethane 0.81 ug/m3 05/28/22 22:12 74-87-30.80 0.16 1.9 Cyclohexane 2.5J ug/m3 05/28/22 22:12 110-82-73.3 0.42 1.9 Dibromochloromethane ND ug/m3 05/28/22 22:12 124-48-13.3 0.98 1.9 1,2-Dibromoethane (EDB)ND ug/m3 05/28/22 22:12 106-93-43.0 0.57 1.9 1,2-Dichlorobenzene ND ug/m3 05/28/22 22:12 95-50-15.8 0.77 1.9 1,3-Dichlorobenzene ND ug/m3 05/28/22 22:12 541-73-15.8 0.97 1.9 1,4-Dichlorobenzene ND ug/m3 05/28/22 22:12 106-46-75.8 1.7 1.9 Dichlorodifluoromethane 2.8 ug/m3 05/28/22 22:12 75-71-81.9 0.36 1.9 1,1-Dichloroethane ND ug/m3 05/28/22 22:12 75-34-31.6 0.31 1.9 1,2-Dichloroethane ND ug/m3 05/28/22 22:12 107-06-21.6 0.37 1.9 1,1-Dichloroethene ND ug/m3 05/28/22 22:12 75-35-41.5 0.26 1.9 cis-1,2-Dichloroethene ND ug/m3 05/28/22 22:12 156-59-21.5 0.37 1.9 trans-1,2-Dichloroethene ND ug/m3 05/28/22 22:12 156-60-51.5 0.32 1.9 1,2-Dichloropropane ND ug/m3 05/28/22 22:12 78-87-51.8 0.51 1.9 cis-1,3-Dichloropropene ND ug/m3 05/28/22 22:12 10061-01-54.4 0.48 1.9 trans-1,3-Dichloropropene ND ug/m3 05/28/22 22:12 10061-02-64.4 1.0 1.9 Dichlorotetrafluoroethane ND ug/m3 05/28/22 22:12 76-14-22.7 0.38 1.9 Ethanol 12.6 ug/m3 05/28/22 22:12 64-17-53.6 1.1 1.9 Ethyl acetate ND ug/m3 05/28/22 22:12 141-78-61.4 0.25 1.9 Ethylbenzene ND ug/m3 05/28/22 22:12 100-41-41.7 0.59 1.9 4-Ethyltoluene ND ug/m3 05/28/22 22:12 622-96-84.8 0.90 1.9 n-Heptane ND ug/m3 05/28/22 22:12 142-82-51.6 0.34 1.9 Hexachloro-1,3-butadiene 4.4J ug/m3 05/28/22 22:12 87-68-310.3 2.3 1.9 n-Hexane ND ug/m3 05/28/22 22:12 110-54-31.4 0.36 1.9 2-Hexanone ND ug/m3 05/28/22 22:12 591-78-67.9 0.84 1.9 Methylene Chloride ND ug/m3 05/28/22 22:12 75-09-26.7 1.1 1.9 4-Methyl-2-pentanone (MIBK)ND ug/m3 05/28/22 22:12 108-10-17.9 0.61 1.9 Methyl-tert-butyl ether ND ug/m3 05/28/22 22:12 1634-04-47.0 0.24 1.9 Naphthalene ND ug/m3 05/28/22 22:12 91-20-35.1 4.1 1.9 2-Propanol 54.8 ug/m3 05/28/22 22:12 67-63-04.8 0.97 1.9 Propylene ND ug/m3 05/28/22 22:12 115-07-11.7 0.25 1.9 Styrene ND ug/m3 05/28/22 22:12 100-42-54.1 0.73 1.9 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1015-G Lab ID:92603519009 Collected:05/05/22 15:25 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR 1,1,2,2-Tetrachloroethane ND ug/m3 05/28/22 22:12 79-34-52.7 0.71 1.9 Tetrachloroethene 3.1 ug/m3 05/28/22 22:12 127-18-41.3 0.55 1.9 Tetrahydrofuran 2910 ug/m3 05/30/22 12:29 109-99-968.4 20.5 114 Toluene 1.1J ug/m3 05/28/22 22:12 108-88-31.5 0.46 1.9 1,2,4-Trichlorobenzene ND ug/m3 05/28/22 22:12 120-82-114.3 9.3 1.9 1,1,1-Trichloroethane ND ug/m3 05/28/22 22:12 71-55-62.1 0.35 1.9 1,1,2-Trichloroethane ND ug/m3 05/28/22 22:12 79-00-52.1 0.37 1.9 Trichloroethene 3.1 ug/m3 05/28/22 22:12 79-01-61.0 0.37 1.9 Trichlorofluoromethane 1.9J ug/m3 05/28/22 22:12 75-69-42.2 0.44 1.9 1,1,2-Trichlorotrifluoroethane 0.73J ug/m3 05/28/22 22:12 76-13-13.0 0.55 1.9 1,2,4-Trimethylbenzene ND ug/m3 05/28/22 22:12 95-63-61.9 0.67 1.9 1,3,5-Trimethylbenzene ND ug/m3 05/28/22 22:12 108-67-81.9 0.55 1.9 Vinyl acetate ND ug/m3 05/28/22 22:12 108-05-41.4 0.40 1.9 Vinyl chloride ND ug/m3 05/28/22 22:12 75-01-40.49 0.16 1.9 m&p-Xylene ND ug/m3 05/28/22 22:12 179601-23-13.4 1.2 1.9 o-Xylene ND ug/m3 05/28/22 22:12 95-47-61.7 0.51 1.9 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1015-DUP Lab ID:92603519010 Collected:05/05/22 00:00 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR Acetone 709 ug/m3 05/28/22 22:46 67-64-111.5 3.4 1.9 Benzene ND ug/m3 05/28/22 22:46 71-43-20.62 0.22 1.9 Benzyl chloride ND ug/m3 05/28/22 22:46 100-44-75.0 1.7 1.9 Bromodichloromethane ND ug/m3 05/28/22 22:46 75-27-42.6 0.45 1.9 Bromoform ND ug/m3 05/28/22 22:46 75-25-2103.1 1.9 Bromomethane ND ug/m3 05/28/22 22:46 74-83-91.5 0.28 1.9 1,3-Butadiene ND ug/m3 05/28/22 22:46 106-99-00.86 0.23 1.9 2-Butanone (MEK)1990 ug/m3 05/30/22 13:00 78-93-334253.0 114 Carbon disulfide 4.6 ug/m3 05/28/22 22:46 75-15-01.2 0.25 1.9 Carbon tetrachloride ND ug/m3 05/28/22 22:46 56-23-52.4 0.53 1.9 Chlorobenzene ND ug/m3 05/28/22 22:46 108-90-71.8 0.29 1.9 Chloroethane ND ug/m3 05/28/22 22:46 75-00-31.0 0.43 1.9 Chloroform ND ug/m3 05/28/22 22:46 67-66-30.94 0.35 1.9 Chloromethane 1.3 ug/m3 05/28/22 22:46 74-87-30.80 0.16 1.9 Cyclohexane 2.0J ug/m3 05/28/22 22:46 110-82-73.3 0.42 1.9 Dibromochloromethane ND ug/m3 05/28/22 22:46 124-48-13.3 0.98 1.9 1,2-Dibromoethane (EDB)ND ug/m3 05/28/22 22:46 106-93-43.0 0.57 1.9 1,2-Dichlorobenzene ND ug/m3 05/28/22 22:46 95-50-15.8 0.77 1.9 1,3-Dichlorobenzene ND ug/m3 05/28/22 22:46 541-73-15.8 0.97 1.9 1,4-Dichlorobenzene ND ug/m3 05/28/22 22:46 106-46-75.8 1.7 1.9 Dichlorodifluoromethane 2.7 ug/m3 05/28/22 22:46 75-71-81.9 0.36 1.9 1,1-Dichloroethane ND ug/m3 05/28/22 22:46 75-34-31.6 0.31 1.9 1,2-Dichloroethane ND ug/m3 05/28/22 22:46 107-06-21.6 0.37 1.9 1,1-Dichloroethene ND ug/m3 05/28/22 22:46 75-35-41.5 0.26 1.9 cis-1,2-Dichloroethene ND ug/m3 05/28/22 22:46 156-59-21.5 0.37 1.9 trans-1,2-Dichloroethene ND ug/m3 05/28/22 22:46 156-60-51.5 0.32 1.9 1,2-Dichloropropane ND ug/m3 05/28/22 22:46 78-87-51.8 0.51 1.9 cis-1,3-Dichloropropene ND ug/m3 05/28/22 22:46 10061-01-54.4 0.48 1.9 trans-1,3-Dichloropropene ND ug/m3 05/28/22 22:46 10061-02-64.4 1.0 1.9 Dichlorotetrafluoroethane ND ug/m3 05/28/22 22:46 76-14-22.7 0.38 1.9 Ethanol 11.1 ug/m3 05/28/22 22:46 64-17-53.6 1.1 1.9 Ethyl acetate ND ug/m3 05/28/22 22:46 141-78-61.4 0.25 1.9 Ethylbenzene ND ug/m3 05/28/22 22:46 100-41-41.7 0.59 1.9 4-Ethyltoluene ND ug/m3 05/28/22 22:46 622-96-84.8 0.90 1.9 n-Heptane ND ug/m3 05/28/22 22:46 142-82-51.6 0.34 1.9 Hexachloro-1,3-butadiene 5.1J ug/m3 05/28/22 22:46 87-68-310.3 2.3 1.9 n-Hexane ND ug/m3 05/28/22 22:46 110-54-31.4 0.36 1.9 2-Hexanone ND ug/m3 05/28/22 22:46 591-78-67.9 0.84 1.9 Methylene Chloride ND ug/m3 05/28/22 22:46 75-09-26.7 1.1 1.9 4-Methyl-2-pentanone (MIBK)ND ug/m3 05/28/22 22:46 108-10-17.9 0.61 1.9 Methyl-tert-butyl ether ND ug/m3 05/28/22 22:46 1634-04-47.0 0.24 1.9 Naphthalene ND ug/m3 05/28/22 22:46 91-20-35.1 4.1 1.9 2-Propanol 48.1 ug/m3 05/28/22 22:46 67-63-04.8 0.97 1.9 Propylene ND ug/m3 05/28/22 22:46 115-07-11.7 0.25 1.9 Styrene ND ug/m3 05/28/22 22:46 100-42-54.1 0.73 1.9 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 40 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92603519 NVR-010 Sample:SS-1015-DUP Lab ID:92603519010 Collected:05/05/22 00:00 Received:05/09/22 06:40 Matrix:Air Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: TO-15 Pace Analytical Services - Minneapolis TO15 MSV AIR 1,1,2,2-Tetrachloroethane ND ug/m3 05/28/22 22:46 79-34-52.7 0.71 1.9 Tetrachloroethene 1.1J ug/m3 05/28/22 22:46 127-18-41.3 0.55 1.9 Tetrahydrofuran 2580 ug/m3 05/30/22 13:00 109-99-968.4 20.5 114 Toluene 1.1J ug/m3 05/28/22 22:46 108-88-31.5 0.46 1.9 1,2,4-Trichlorobenzene ND ug/m3 05/28/22 22:46 120-82-114.3 9.3 1.9 1,1,1-Trichloroethane ND ug/m3 05/28/22 22:46 71-55-62.1 0.35 1.9 1,1,2-Trichloroethane ND ug/m3 05/28/22 22:46 79-00-52.1 0.37 1.9 Trichloroethene 1.3 ug/m3 05/28/22 22:46 79-01-61.0 0.37 1.9 Trichlorofluoromethane 1.8J ug/m3 05/28/22 22:46 75-69-42.2 0.44 1.9 1,1,2-Trichlorotrifluoroethane 0.69J ug/m3 05/28/22 22:46 76-13-13.0 0.55 1.9 1,2,4-Trimethylbenzene ND ug/m3 05/28/22 22:46 95-63-61.9 0.67 1.9 1,3,5-Trimethylbenzene ND ug/m3 05/28/22 22:46 108-67-81.9 0.55 1.9 Vinyl acetate ND ug/m3 05/28/22 22:46 108-05-41.4 0.40 1.9 Vinyl chloride ND ug/m3 05/28/22 22:46 75-01-40.49 0.16 1.9 m&p-Xylene 2.5J ug/m3 05/28/22 22:46 179601-23-13.4 1.2 1.9 o-Xylene ND ug/m3 05/28/22 22:46 95-47-61.7 0.51 1.9 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 818148 TO-15 TO-15 TO15 MSV AIR Low Level Laboratory:Pace Analytical Services - Minneapolis Associated Lab Samples:92603519001, 92603519002, 92603519003, 92603519004, 92603519005, 92603519006 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4335912 Associated Lab Samples:92603519001, 92603519002, 92603519003, 92603519004, 92603519005, 92603519006 Matrix:Air AnalyzedMDL 1,1,1-Trichloroethane ug/m3 ND 1.1 05/27/22 08:470.19 1,1,2,2-Tetrachloroethane ug/m3 ND 1.4 05/27/22 08:470.37 1,1,2-Trichloroethane ug/m3 ND 0.56 05/27/22 08:470.20 1,1,2-Trichlorotrifluoroethane ug/m3 ND 1.6 05/27/22 08:470.29 1,1-Dichloroethane ug/m3 ND 0.82 05/27/22 08:470.16 1,1-Dichloroethene ug/m3 ND 0.81 05/27/22 08:470.14 1,2,4-Trichlorobenzene ug/m3 ND 7.5 05/27/22 08:474.9 1,2,4-Trimethylbenzene ug/m3 ND 1.0 05/27/22 08:470.35 1,2-Dibromoethane (EDB)ug/m3 ND 0.78 05/27/22 08:470.30 1,2-Dichlorobenzene ug/m3 ND 3.1 05/27/22 08:470.40 1,2-Dichloroethane ug/m3 ND 0.82 05/27/22 08:470.19 1,2-Dichloropropane ug/m3 ND 0.94 05/27/22 08:470.27 1,3,5-Trimethylbenzene ug/m3 ND 1.0 05/27/22 08:470.29 1,3-Butadiene ug/m3 ND 0.45 05/27/22 08:470.12 1,3-Dichlorobenzene ug/m3 ND 3.1 05/27/22 08:470.51 1,4-Dichlorobenzene ug/m3 ND 3.1 05/27/22 08:470.88 2-Butanone (MEK)ug/m3 ND 3.0 05/27/22 08:470.46 2-Hexanone ug/m3 ND 4.2 05/27/22 08:470.44 2-Propanol ug/m3 ND 2.5 05/27/22 08:470.51 4-Ethyltoluene ug/m3 ND 2.5 05/27/22 08:470.47 4-Methyl-2-pentanone (MIBK)ug/m3 ND 4.2 05/27/22 08:470.32 Acetone ug/m3 ND 6.0 05/27/22 08:471.8 Benzene ug/m3 ND 0.32 05/27/22 08:470.11 Benzyl chloride ug/m3 ND 2.6 05/27/22 08:470.89 Bromodichloromethane ug/m3 ND 1.4 05/27/22 08:470.24 Bromoform ug/m3 ND 5.2 05/27/22 08:471.6 Bromomethane ug/m3 ND 0.79 05/27/22 08:470.15 Carbon disulfide ug/m3 ND 0.63 05/27/22 08:470.13 Carbon tetrachloride ug/m3 ND 1.3 05/27/22 08:470.28 Chlorobenzene ug/m3 ND 0.94 05/27/22 08:470.16 Chloroethane ug/m3 ND 0.54 05/27/22 08:470.22 Chloroform ug/m3 ND 0.50 05/27/22 08:470.18 Chloromethane ug/m3 ND 0.42 05/27/22 08:470.085 cis-1,2-Dichloroethene ug/m3 ND 0.81 05/27/22 08:470.20 cis-1,3-Dichloropropene ug/m3 ND 2.3 05/27/22 08:470.26 Cyclohexane ug/m3 ND 1.8 05/27/22 08:470.22 Dibromochloromethane ug/m3 ND 1.7 05/27/22 08:470.52 Dichlorodifluoromethane ug/m3 ND 1.0 05/27/22 08:470.19 Dichlorotetrafluoroethane ug/m3 ND 1.4 05/27/22 08:470.20 Ethanol ug/m3 ND 1.9 05/27/22 08:470.59 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 25 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4335912 Associated Lab Samples:92603519001, 92603519002, 92603519003, 92603519004, 92603519005, 92603519006 Matrix:Air AnalyzedMDL Ethyl acetate ug/m3 ND 0.73 05/27/22 08:470.13 Ethylbenzene ug/m3 ND 2.2 MN05/27/22 08:470.31 Hexachloro-1,3-butadiene ug/m3 ND 5.4 05/27/22 08:471.2 m&p-Xylene ug/m3 ND 1.8 05/27/22 08:470.64 Methyl-tert-butyl ether ug/m3 ND 3.7 05/27/22 08:470.13 Methylene Chloride ug/m3 ND 3.5 05/27/22 08:470.59 n-Heptane ug/m3 ND 0.83 05/27/22 08:470.18 n-Hexane ug/m3 ND 0.72 05/27/22 08:470.19 Naphthalene ug/m3 ND 2.7 05/27/22 08:472.2 o-Xylene ug/m3 ND 0.88 05/27/22 08:470.27 Propylene ug/m3 ND 0.88 05/27/22 08:470.13 Styrene ug/m3 ND 0.87 05/27/22 08:470.38 Tetrachloroethene ug/m3 ND 0.69 05/27/22 08:470.29 Tetrahydrofuran ug/m3 ND 0.60 MN05/27/22 08:470.18 Toluene ug/m3 ND 1.9 MN05/27/22 08:470.24 trans-1,2-Dichloroethene ug/m3 ND 0.81 05/27/22 08:470.17 trans-1,3-Dichloropropene ug/m3 ND 2.3 05/27/22 08:470.54 Trichloroethene ug/m3 ND 0.55 05/27/22 08:470.20 Trichlorofluoromethane ug/m3 ND 1.1 05/27/22 08:470.23 Vinyl acetate ug/m3 ND 0.72 05/27/22 08:470.21 Vinyl chloride ug/m3 ND 0.52 MN05/27/22 08:470.087 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4335913LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1-Trichloroethane ug/m3 61.159.3 103 70-130 1,1,2,2-Tetrachloroethane ug/m3 87.475.4 116 70-132 1,1,2-Trichloroethane ug/m3 71.759.6 120 70-131 1,1,2-Trichlorotrifluoroethane ug/m3 79.383.6 95 70-130 1,1-Dichloroethane ug/m3 44.743.9 102 70-130 1,1-Dichloroethene ug/m3 41.643.5 96 70-130 1,2,4-Trichlorobenzene ug/m3 200177 113 70-130 1,2,4-Trimethylbenzene ug/m3 61.754 114 70-137 1,2-Dibromoethane (EDB)ug/m3 10482.5 126 70-137 1,2-Dichlorobenzene ug/m3 76.066.2 115 70-131 1,2-Dichloroethane ug/m3 49.244.4 111 70-134 1,2-Dichloropropane ug/m3 58.750.6 116 70-130 1,3,5-Trimethylbenzene ug/m3 61.453.7 114 70-131 1,3-Butadiene ug/m3 23.824.2 99 70-139 1,3-Dichlorobenzene ug/m3 75.066.3 113 70-134 1,4-Dichlorobenzene ug/m3 74.366.3 112 70-131 2-Butanone (MEK)ug/m3 38.032.3 118 70-133 2-Hexanone ug/m3 49.944.8 112 70-136 2-Propanol ug/m3 142149 95 65-133 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 26 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4335913LABORATORY CONTROL SAMPLE: LCSSpike 4-Ethyltoluene ug/m3 63.353.7 118 70-130 4-Methyl-2-pentanone (MIBK)ug/m3 53.244.9 118 70-130 Acetone ug/m3 137128 107 60-134 Benzene ug/m3 44.234.8 127 70-130 Benzyl chloride ug/m3 61.557.6 107 70-130 Bromodichloromethane ug/m3 79.773.1 109 70-130 Bromoform ug/m3 131114 115 70-138 Bromomethane ug/m3 40.242.5 95 68-131 Carbon disulfide ug/m3 36.234.4 105 70-130 Carbon tetrachloride ug/m3 73.869.4 106 70-132 Chlorobenzene ug/m3 57.050.2 114 70-130 Chloroethane ug/m3 28.028.8 97 70-134 Chloroform ug/m3 52.652.4 100 70-130 Chloromethane ug/m3 20.422.6 91 68-131 cis-1,2-Dichloroethene ug/m3 55.443.4 128 70-136 cis-1,3-Dichloropropene ug/m3 55.149.4 112 70-130 Cyclohexane ug/m3 43.937.4 117 70-131 Dibromochloromethane ug/m3 11093.2 118 70-134 Dichlorodifluoromethane ug/m3 50.754.6 93 70-130 Dichlorotetrafluoroethane ug/m3 83.171.2 117 70-130 Ethanol ug/m3 116124 94 55-145 Ethyl acetate ug/m3 44.038.9 113 70-135 Ethylbenzene ug/m3 54.647.8 114 70-133 Hexachloro-1,3-butadiene ug/m3 157133 118 70-132 m&p-Xylene ug/m3 10795.4 112 70-134 Methyl-tert-butyl ether ug/m3 47.339.6 120 70-131 Methylene Chloride ug/m3 185190 97 65-132 n-Heptane ug/m3 50.044.6 112 70-130 n-Hexane ug/m3 43.138 113 70-132 Naphthalene ug/m3 74.165.2 114 70-130 o-Xylene ug/m3 53.647.6 113 70-134 Propylene ug/m3 21.818.9 116 69-133 Styrene ug/m3 52.447 112 70-135 Tetrachloroethene ug/m3 84.473.4 115 70-134 Tetrahydrofuran ug/m3 36.332.1 113 70-140 Toluene ug/m3 47.841.6 115 70-136 trans-1,2-Dichloroethene ug/m3 50.043.6 115 70-134 trans-1,3-Dichloropropene ug/m3 57.250.5 113 70-131 Trichloroethene ug/m3 73.858.4 126 70-134 Trichlorofluoromethane ug/m3 73.762 119 63-130 Vinyl acetate ug/m3 54.246.4 117 70-139 Vinyl chloride ug/m3 32.028 114 70-132 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 27 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Dup Result Max RPD QualifiersRPDResult 10608514004 4337940SAMPLE DUPLICATE: 1,1,1-Trichloroethane ug/m3 ND 25ND 1,1,2,2-Tetrachloroethane ug/m3 ND 25ND 1,1,2-Trichloroethane ug/m3 ND 25ND 1,1,2-Trichlorotrifluoroethane ug/m3 ND 25ND 1,1-Dichloroethane ug/m3 ND 25ND 1,1-Dichloroethene ug/m3 ND 25ND 1,2,4-Trichlorobenzene ug/m3 ND 25ND 1,2,4-Trimethylbenzene ug/m3 ND 25ND 1,2-Dibromoethane (EDB)ug/m3 ND 25ND 1,2-Dichlorobenzene ug/m3 ND 25ND 1,2-Dichloroethane ug/m3 ND 25ND 1,2-Dichloropropane ug/m3 ND 25ND 1,3,5-Trimethylbenzene ug/m3 ND 25ND 1,3-Butadiene ug/m3 ND 25ND 1,3-Dichlorobenzene ug/m3 ND 25ND 1,4-Dichlorobenzene ug/m3 ND 25ND 2-Butanone (MEK)ug/m3 7.0J 25ND 2-Hexanone ug/m3 ND 25ND 2-Propanol ug/m3 38.7 2 2537.9 4-Ethyltoluene ug/m3 ND 25ND 4-Methyl-2-pentanone (MIBK)ug/m3 ND 25ND Acetone ug/m3 43.2J 25ND Benzene ug/m3 ND 25ND Benzyl chloride ug/m3 ND 25ND Bromodichloromethane ug/m3 ND 25ND Bromoform ug/m3 ND 25ND Bromomethane ug/m3 ND 25ND Carbon disulfide ug/m3 ND 25ND Carbon tetrachloride ug/m3 ND 25ND Chlorobenzene ug/m3 ND 25ND Chloroethane ug/m3 ND 25ND Chloroform ug/m3 ND 25ND Chloromethane ug/m3 ND 25ND cis-1,2-Dichloroethene ug/m3 ND 25ND cis-1,3-Dichloropropene ug/m3 ND 25ND Cyclohexane ug/m3 4.1J 25ND Dibromochloromethane ug/m3 ND 25ND Dichlorodifluoromethane ug/m3 1270 4 251210 Dichlorotetrafluoroethane ug/m3 ND 25ND Ethanol ug/m3 220 2 25216 Ethyl acetate ug/m3 ND 25ND Ethylbenzene ug/m3 ND 25ND Hexachloro-1,3-butadiene ug/m3 ND 25ND m&p-Xylene ug/m3 ND 25ND Methyl-tert-butyl ether ug/m3 ND 25ND Methylene Chloride ug/m3 ND 25ND n-Heptane ug/m3 ND 25ND REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 28 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Dup Result Max RPD QualifiersRPDResult 10608514004 4337940SAMPLE DUPLICATE: n-Hexane ug/m3 7.7 2 257.9 Naphthalene ug/m3 ND 25ND o-Xylene ug/m3 ND 25ND Propylene ug/m3 ND 25ND Styrene ug/m3 ND 25ND Tetrachloroethene ug/m3 511 0 25509 Tetrahydrofuran ug/m3 ND 25ND Toluene ug/m3 5.3J 25ND trans-1,2-Dichloroethene ug/m3 ND 25ND trans-1,3-Dichloropropene ug/m3 ND 25ND Trichloroethene ug/m3 ND 25ND Trichlorofluoromethane ug/m3 4.3J 25ND Vinyl acetate ug/m3 ND 25ND Vinyl chloride ug/m3 ND 25ND REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 29 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 818272 TO-15 TO-15 TO15 MSV AIR Low Level Laboratory:Pace Analytical Services - Minneapolis Associated Lab Samples:92603519007, 92603519008, 92603519009, 92603519010 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4336942 Associated Lab Samples:92603519007, 92603519008, 92603519009, 92603519010 Matrix:Air AnalyzedMDL 1,1,1-Trichloroethane ug/m3 ND 1.1 05/28/22 10:190.19 1,1,2,2-Tetrachloroethane ug/m3 ND 1.4 05/28/22 10:190.37 1,1,2-Trichloroethane ug/m3 ND 1.1 MN05/28/22 10:190.20 1,1,2-Trichlorotrifluoroethane ug/m3 ND 1.6 05/28/22 10:190.29 1,1-Dichloroethane ug/m3 ND 0.82 05/28/22 10:190.16 1,1-Dichloroethene ug/m3 ND 0.81 05/28/22 10:190.14 1,2,4-Trichlorobenzene ug/m3 ND 7.5 05/28/22 10:194.9 1,2,4-Trimethylbenzene ug/m3 ND 1.0 05/28/22 10:190.35 1,2-Dibromoethane (EDB)ug/m3 ND 1.6 MN05/28/22 10:190.30 1,2-Dichlorobenzene ug/m3 ND 3.1 05/28/22 10:190.40 1,2-Dichloroethane ug/m3 ND 0.82 05/28/22 10:190.19 1,2-Dichloropropane ug/m3 ND 0.94 05/28/22 10:190.27 1,3,5-Trimethylbenzene ug/m3 ND 1.0 05/28/22 10:190.29 1,3-Butadiene ug/m3 ND 0.45 05/28/22 10:190.12 1,3-Dichlorobenzene ug/m3 ND 3.1 05/28/22 10:190.51 1,4-Dichlorobenzene ug/m3 ND 3.1 05/28/22 10:190.88 2-Butanone (MEK)ug/m3 ND 3.0 05/28/22 10:190.46 2-Hexanone ug/m3 ND 4.2 05/28/22 10:190.44 2-Propanol ug/m3 ND 2.5 05/28/22 10:190.51 4-Ethyltoluene ug/m3 ND 2.5 05/28/22 10:190.47 4-Methyl-2-pentanone (MIBK)ug/m3 ND 4.2 05/28/22 10:190.32 Acetone ug/m3 ND 6.0 05/28/22 10:191.8 Benzene ug/m3 ND 0.32 05/28/22 10:190.11 Benzyl chloride ug/m3 ND 2.6 05/28/22 10:190.89 Bromodichloromethane ug/m3 ND 1.4 05/28/22 10:190.24 Bromoform ug/m3 ND 5.2 05/28/22 10:191.6 Bromomethane ug/m3 ND 0.79 05/28/22 10:190.15 Carbon disulfide ug/m3 ND 0.63 05/28/22 10:190.13 Carbon tetrachloride ug/m3 ND 1.3 05/28/22 10:190.28 Chlorobenzene ug/m3 ND 0.94 05/28/22 10:190.16 Chloroethane ug/m3 ND 0.54 05/28/22 10:190.22 Chloroform ug/m3 ND 0.50 05/28/22 10:190.18 Chloromethane ug/m3 ND 0.42 05/28/22 10:190.085 cis-1,2-Dichloroethene ug/m3 ND 0.81 05/28/22 10:190.20 cis-1,3-Dichloropropene ug/m3 ND 2.3 05/28/22 10:190.26 Cyclohexane ug/m3 ND 1.8 05/28/22 10:190.22 Dibromochloromethane ug/m3 ND 1.7 05/28/22 10:190.52 Dichlorodifluoromethane ug/m3 ND 1.0 05/28/22 10:190.19 Dichlorotetrafluoroethane ug/m3 ND 1.4 05/28/22 10:190.20 Ethanol ug/m3 ND 1.9 05/28/22 10:190.59 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 30 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4336942 Associated Lab Samples:92603519007, 92603519008, 92603519009, 92603519010 Matrix:Air AnalyzedMDL Ethyl acetate ug/m3 ND 0.73 05/28/22 10:190.13 Ethylbenzene ug/m3 ND 0.88 05/28/22 10:190.31 Hexachloro-1,3-butadiene ug/m3 1.6J 5.4 05/28/22 10:191.2 m&p-Xylene ug/m3 ND 1.8 05/28/22 10:190.64 Methyl-tert-butyl ether ug/m3 ND 3.7 05/28/22 10:190.13 Methylene Chloride ug/m3 ND 3.5 05/28/22 10:190.59 n-Heptane ug/m3 ND 0.83 05/28/22 10:190.18 n-Hexane ug/m3 ND 0.72 05/28/22 10:190.19 Naphthalene ug/m3 ND 2.7 05/28/22 10:192.2 o-Xylene ug/m3 ND 0.88 05/28/22 10:190.27 Propylene ug/m3 ND 0.88 05/28/22 10:190.13 Styrene ug/m3 ND 2.2 MN05/28/22 10:190.38 Tetrachloroethene ug/m3 ND 0.69 05/28/22 10:190.29 Tetrahydrofuran ug/m3 ND 0.60 05/28/22 10:190.18 Toluene ug/m3 ND 0.77 05/28/22 10:190.24 trans-1,2-Dichloroethene ug/m3 ND 0.81 05/28/22 10:190.17 trans-1,3-Dichloropropene ug/m3 ND 2.3 05/28/22 10:190.54 Trichloroethene ug/m3 ND 0.55 05/28/22 10:190.20 Trichlorofluoromethane ug/m3 ND 1.1 05/28/22 10:190.23 Vinyl acetate ug/m3 ND 0.72 05/28/22 10:190.21 Vinyl chloride ug/m3 ND 0.26 05/28/22 10:190.087 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4336943LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1-Trichloroethane ug/m3 65.259.3 110 70-130 1,1,2,2-Tetrachloroethane ug/m3 96.675.4 128 70-132 1,1,2-Trichloroethane ug/m3 60.859.6 102 70-131 1,1,2-Trichlorotrifluoroethane ug/m3 83.483.6 100 70-130 1,1-Dichloroethane ug/m3 47.943.9 109 70-130 1,1-Dichloroethene ug/m3 45.243.5 104 70-130 1,2,4-Trichlorobenzene ug/m3 154177 87 70-130 1,2,4-Trimethylbenzene ug/m3 53.554 99 70-137 1,2-Dibromoethane (EDB)ug/m3 84.982.5 103 70-137 1,2-Dichlorobenzene ug/m3 64.466.2 97 70-131 1,2-Dichloroethane ug/m3 50.244.4 113 70-134 1,2-Dichloropropane ug/m3 62.250.6 123 70-130 1,3,5-Trimethylbenzene ug/m3 53.953.7 100 70-131 1,3-Butadiene ug/m3 28.624.2 119 70-139 1,3-Dichlorobenzene ug/m3 63.766.3 96 70-134 1,4-Dichlorobenzene ug/m3 64.166.3 97 70-131 2-Butanone (MEK)ug/m3 32.632.3 101 70-133 2-Hexanone ug/m3 45.344.8 101 70-136 2-Propanol ug/m3 153149 103 65-133 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 31 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4336943LABORATORY CONTROL SAMPLE: LCSSpike 4-Ethyltoluene ug/m3 53.553.7 100 70-130 4-Methyl-2-pentanone (MIBK)ug/m3 45.244.9 101 70-130 Acetone ug/m3 123128 97 60-134 Benzene ug/m3 42.234.8 121 70-130 Benzyl chloride ug/m3 54.757.6 95 70-130 Bromodichloromethane ug/m3 88.373.1 121 70-130 Bromoform ug/m3 110114 96 70-138 Bromomethane ug/m3 44.942.5 106 68-131 Carbon disulfide ug/m3 38.134.4 111 70-130 Carbon tetrachloride ug/m3 77.069.4 111 70-132 Chlorobenzene ug/m3 60.650.2 121 70-130 Chloroethane ug/m3 33.128.8 115 70-134 Chloroform ug/m3 58.052.4 111 70-130 Chloromethane ug/m3 25.222.6 112 68-131 cis-1,2-Dichloroethene ug/m3 50.843.4 117 70-136 cis-1,3-Dichloropropene ug/m3 51.749.4 105 70-130 Cyclohexane ug/m3 45.537.4 122 70-131 Dibromochloromethane ug/m3 10893.2 116 70-134 Dichlorodifluoromethane ug/m3 60.154.6 110 70-130 Dichlorotetrafluoroethane ug/m3 80.071.2 112 70-130 Ethanol ug/m3 140124 113 55-145 Ethyl acetate ug/m3 43.738.9 112 70-135 Ethylbenzene ug/m3 49.647.8 104 70-133 Hexachloro-1,3-butadiene ug/m3 113133 85 70-132 m&p-Xylene ug/m3 10195.4 106 70-134 Methyl-tert-butyl ether ug/m3 43.539.6 110 70-131 Methylene Chloride ug/m3 194190 102 65-132 n-Heptane ug/m3 52.544.6 118 70-130 n-Hexane ug/m3 44.238 116 70-132 Naphthalene ug/m3 57.065.2 87 70-130 o-Xylene ug/m3 49.047.6 103 70-134 Propylene ug/m3 24.218.9 128 69-133 Styrene ug/m3 47.247 100 70-135 Tetrachloroethene ug/m3 91.873.4 125 70-134 Tetrahydrofuran ug/m3 37.732.1 118 70-140 Toluene ug/m3 52.341.6 126 70-136 trans-1,2-Dichloroethene ug/m3 49.943.6 115 70-134 trans-1,3-Dichloropropene ug/m3 52.050.5 103 70-131 Trichloroethene ug/m3 58.958.4 101 70-134 Trichlorofluoromethane ug/m3 56.762 91 63-130 Vinyl acetate ug/m3 52.546.4 113 70-139 Vinyl chloride ug/m3 29.328 105 70-132 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 32 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Dup Result Max RPD QualifiersRPDResult 10609580015 4337586SAMPLE DUPLICATE: 1,1,1-Trichloroethane ug/m3 ND 25<1.9 1,1,2,2-Tetrachloroethane ug/m3 ND 25<2.4 1,1,2-Trichloroethane ug/m3 ND 25<1.9 1,1,2-Trichlorotrifluoroethane ug/m3 0.52J 250.62J 1,1-Dichloroethane ug/m3 ND 25<1.4 1,1-Dichloroethene ug/m3 ND 25<1.4 1,2,4-Trichlorobenzene ug/m3 ND 25<12.9 1,2,4-Trimethylbenzene ug/m3 1.1J 251.1J 1,2-Dibromoethane (EDB)ug/m3 ND 25<2.7 1,2-Dichlorobenzene ug/m3 ND 25<5.2 1,2-Dichloroethane ug/m3 ND 25<1.4 1,2-Dichloropropane ug/m3 ND 25<1.6 1,3,5-Trimethylbenzene ug/m3 ND 25<1.7 1,3-Butadiene ug/m3 ND 25<0.77 1,3-Dichlorobenzene ug/m3 ND 25<5.2 1,4-Dichlorobenzene ug/m3 ND 25<5.2 2-Butanone (MEK)ug/m3 2.5J 252.5J 2-Hexanone ug/m3 ND 25<7.1 2-Propanol ug/m3 7.5 3 257.7 4-Ethyltoluene ug/m3 ND 25<4.3 4-Methyl-2-pentanone (MIBK)ug/m3 ND 25<7.1 Acetone ug/m3 19.3 2 2518.9 Benzene ug/m3 ND 25<0.56 Benzyl chloride ug/m3 ND 25<4.5 Bromodichloromethane ug/m3 ND 25<2.3 Bromoform ug/m3 ND 25<9.0 Bromomethane ug/m3 ND 25<1.3 Carbon disulfide ug/m3 ND 25<1.1 Carbon tetrachloride ug/m3 ND 25<2.2 Chlorobenzene ug/m3 ND 25<1.6 Chloroethane ug/m3 ND 25<0.92 Chloroform ug/m3 ND 25<0.85 Chloromethane ug/m3 0.92 1 250.93 cis-1,2-Dichloroethene ug/m3 ND 25<1.4 cis-1,3-Dichloropropene ug/m3 ND 25<4.0 Cyclohexane ug/m3 ND 25<3.0 Dibromochloromethane ug/m3 ND 25<3.0 Dichlorodifluoromethane ug/m3 5.1 4 255.3 Dichlorotetrafluoroethane ug/m3 ND 25<2.4 Ethanol ug/m3 10.0 0 2510 Ethyl acetate ug/m3 ND 25<1.3 Ethylbenzene ug/m3 ND 25<1.5 Hexachloro-1,3-butadiene ug/m3 ND 25<9.3 m&p-Xylene ug/m3 3.0J 253.0J Methyl-tert-butyl ether ug/m3 ND 25<6.3 Methylene Chloride ug/m3 ND 25<6.0 n-Heptane ug/m3 ND 25<1.4 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 33 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Dup Result Max RPD QualifiersRPDResult 10609580015 4337586SAMPLE DUPLICATE: n-Hexane ug/m3 ND 25<1.2 Naphthalene ug/m3 ND 25<4.5 o-Xylene ug/m3 ND 25<1.5 Propylene ug/m3 ND 25<1.5 Styrene ug/m3 ND 25<3.7 Tetrachloroethene ug/m3 33.3 0 2533.2 Tetrahydrofuran ug/m3 1.1 17 251.4 Toluene ug/m3 1.2J 251.1J trans-1,2-Dichloroethene ug/m3 ND 25<1.4 trans-1,3-Dichloropropene ug/m3 ND 25<4.0 Trichloroethene ug/m3 1.2 8 251.1 Trichlorofluoromethane ug/m3 1.8J 251.8J Vinyl acetate ug/m3 ND 25<1.2 Vinyl chloride ug/m3 ND 25<0.44 Parameter Units Dup Result Max RPD QualifiersRPDResult 10609580017 4337587SAMPLE DUPLICATE: 1,1,1-Trichloroethane ug/m3 ND 25<2.1 1,1,2,2-Tetrachloroethane ug/m3 ND 25<2.6 1,1,2-Trichloroethane ug/m3 ND 25<2.1 1,1,2-Trichlorotrifluoroethane ug/m3 ND 250.57J 1,1-Dichloroethane ug/m3 ND 25<1.5 1,1-Dichloroethene ug/m3 ND 25<1.5 1,2,4-Trichlorobenzene ug/m3 ND 25<14.1 1,2,4-Trimethylbenzene ug/m3 1.2J 251.2J 1,2-Dibromoethane (EDB)ug/m3 ND 25<2.9 1,2-Dichlorobenzene ug/m3 ND 25<5.7 1,2-Dichloroethane ug/m3 ND 25<1.5 1,2-Dichloropropane ug/m3 ND 25<1.8 1,3,5-Trimethylbenzene ug/m3 ND 25<1.9 1,3-Butadiene ug/m3 ND 25<0.84 1,3-Dichlorobenzene ug/m3 ND 25<5.7 1,4-Dichlorobenzene ug/m3 ND 25<5.7 2-Butanone (MEK)ug/m3 3.1J 252.7J 2-Hexanone ug/m3 ND 25<7.8 2-Propanol ug/m3 6.8 1 256.7 4-Ethyltoluene ug/m3 ND 25<4.7 4-Methyl-2-pentanone (MIBK)ug/m3 ND 25<7.8 Acetone ug/m3 14.6 7 2513.7 Benzene ug/m3 ND 25<0.61 Benzyl chloride ug/m3 ND 25<4.9 Bromodichloromethane ug/m3 ND 25<2.5 Bromoform ug/m3 ND 25<9.8 Bromomethane ug/m3 ND 25<1.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 34 of 40 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92603519 NVR-010 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Dup Result Max RPD QualifiersRPDResult 10609580017 4337587SAMPLE DUPLICATE: Carbon disulfide ug/m3 ND 25<1.2 Carbon tetrachloride ug/m3 ND 25<2.4 Chlorobenzene ug/m3 ND 25<1.8 Chloroethane ug/m3 ND 25<1.0 Chloroform ug/m3 ND 25<0.93 Chloromethane ug/m3 0.85 5 250.80 cis-1,2-Dichloroethene ug/m3 ND 25<1.5 cis-1,3-Dichloropropene ug/m3 ND 25<4.3 Cyclohexane ug/m3 ND 25<3.3 Dibromochloromethane ug/m3 ND 25<3.2 Dichlorodifluoromethane ug/m3 5.2 3 255.1 Dichlorotetrafluoroethane ug/m3 ND 25<2.7 Ethanol ug/m3 9.6 0 259.6 Ethyl acetate ug/m3 ND 25<1.4 Ethylbenzene ug/m3 ND 251.3J Hexachloro-1,3-butadiene ug/m3 ND 25<10.1 m&p-Xylene ug/m3 3.0J 253.2J Methyl-tert-butyl ether ug/m3 ND 25<6.8 Methylene Chloride ug/m3 ND 25<6.6 n-Heptane ug/m3 ND 25<1.6 n-Hexane ug/m3 ND 25<1.3 Naphthalene ug/m3 ND 25<5.0 o-Xylene ug/m3 ND 25<1.7 Propylene ug/m3 ND 25<1.6 Styrene ug/m3 ND 25<4.0 Tetrachloroethene ug/m3 30.4 3 2529.4 Tetrahydrofuran ug/m3 1.0J 251.1J Toluene ug/m3 1.2J 251.2J trans-1,2-Dichloroethene ug/m3 ND 25<1.5 trans-1,3-Dichloropropene ug/m3 ND 25<4.3 Trichloroethene ug/m3 1.2 6 251.2 Trichlorofluoromethane ug/m3 1.8J 251.6J Vinyl acetate ug/m3 ND 25<1.3 Vinyl chloride ug/m3 ND 25<0.49 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 35 of 40 #=QL# QUALIFIERS Pace Project No.: Project: 92603519 NVR-010 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Analyte concentration exceeded the calibration range. The reported result is estimated.E The reporting limit has been raised in accordance with Minnesota Statutes 4740.2100 Subpart 8. C, D. Reporting Limit Evaluation Rule.MN REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 36 of 40 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92603519 NVR-010 Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92603519001 818148SS-1013-A TO-15 92603519002 818148SS-1013-D TO-15 92603519003 818148SS-1013-G TO-15 92603519004 818148SS-1014-A TO-15 92603519005 818148SS-1014-D TO-15 92603519006 818148SS-1014-G TO-15 92603519007 818272SS-1015-A TO-15 92603519008 818272SS-1015-D TO-15 92603519009 818272SS-1015-G TO-15 92603519010 818272SS-1015-DUP TO-15 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 06/01/2022 10:01 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 37 of 40 Page 38 of 40 Page 39 of 40 05/11/22 Page 40 of 40 Appendix G DEQ Risk Calculator Summary Pages Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: 6/16/2022 Prepared By:Hart & Hickman Building 1013 - Worst Case North Carolina Department of Environmental Quality Risk Calculator Old Pineville Road 4928 Old Pineville Road & 649 Scholtz Road, Charlotte, NC DEQ DWM Brownfields 11061-06-060 January 2022 November 2021 EPA RSL Table North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1013 - Worst Case Note: Risk output will only be calculated for complete exposure pathways. Receptor Pathway Check box if pathway complete Soil Groundwater Use Soil Groundwater Use Construction Worker Soil Soil Surface Water Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Source Soil Source Groundwater Source Soil Source Groundwater Input Form 1A VAPOR INTRUSION PATHWAYS DIRECT CONTACT SOIL AND WATER PATHWAYS Resident Non-Residential Worker Recreator/Trespasser Resident Non-Residential Worker CONTAMINANT MIGRATION PATHWAYS Groundwater Surface Water North Carolina DEQ Risk Calculator Exposure Point Concentrations Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1013 - Worst Case Description of Exposure Point Concentration Selection: Exposure Point Concentration (ug/m3) Notes:CAS Number Chemical Minimum Concentration (Qualifier) Maximum Concentration (Qualifier) Units Location of Maximum Concentration Detection Frequency Range of Detection Limits Concentration Used for Screening Background Value Screening Toxicity Value (Screening Level) (n/c) Potential ARAR/TBC Value Potential ARAR/TBC Source COPC Flag (Y/N) Rationale for Selection or Deletion 791 67-64-1 Acetone ug/m3 50.2 71-43-2 Benzene ug/m3 8 75-15-0 Carbon Disulfide ug/m3 1.3 67-66-3 Chloroform ug/m3 2.6 74-87-3 Chloromethane ug/m3 6.3 110-82-7 Cyclohexane ug/m3 3.7 75-71-8 Dichlorodifluoromethane ug/m3 1.1 156-59-2 Dichloroethylene, cis-1,2-ug/m3 7.7 100-41-4 Ethylbenzene ug/m3 598 109-99-9 ~Tetrahydrofuran ug/m3 5 142-82-5 Heptane, N-ug/m3 9.8 67-63-0 Isopropanol ug/m3 4150 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3 49.1 127-18-4 Tetrachloroethylene ug/m3 150 108-88-3 Toluene ug/m3 1.1 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-ug/m3 1.2 79-01-6 Trichloroethylene ug/m3 1.9 75-69-4 Trichlorofluoromethane ug/m3 4.1 95-63-6 Trimethylbenzene, 1,2,4-ug/m3 2 108-67-8 Trimethylbenzene, 1,3,5-ug/m3 31.9 108-38-3 Xylene, m-ug/m3 4.2 95-47-6 Xylene, o-ug/m3 Input Form 2D Soil Gas Exposure Point Concentration Table Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculations North Carolina DEQ Risk Calculator Risk for Individual Pathways Output Form 1A Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1013 - Worst Case 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 4.9E-06 1.5E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air NC NC NC Indoor Air NC NC NC Pathway Source Source Soil NC Source Groundwater NC Source Soil NC Source Groundwater NC 3. NM = Not Modeled 4. NC = Pathway not calculated DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser 2. * = If concentrations in groundwater exceed the NC 2L Standards or IMAC, or concentrations in surface water exceed the NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based closure. Surface Water Exceedence of 2B at Receptor? Exceedence of 2B at Receptor? VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker CONTAMINANT MIGRATION CALCULATORS Target Receptor Concentrations Exceeded? Groundwater Exceedence of 2L at Receptor? Exceedence of 2L at Receptor? 1. If lead concentrations were entered in the exposure point concentration tables, see the individual calculator sheets for lead concentrations in comparison to screening levels. Note that lead is not included in cumulative risk calculations. Notes: North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1013 - Worst Case 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 791 23.73 -- 71-43-2 Benzene 50.2 1.506 3.6E-01 6.3E+00 4.2E-06 4.8E-02 75-15-0 Carbon Disulfide 8 0.24 -1.5E+02 3.3E-04 67-66-3 Chloroform 1.3 0.039 1.2E-01 2.0E+01 3.2E-07 3.8E-04 74-87-3 Chloromethane 2.6 0.078 -1.9E+01 8.3E-04 110-82-7 Cyclohexane 6.3 0.189 -1.3E+03 3.0E-05 75-71-8 Dichlorodifluoromethane 3.7 0.111 -2.1E+01 1.1E-03 156-59-2 Dichloroethylene, cis-1,2-1.1 0.033 -- 100-41-4 Ethylbenzene 7.7 0.231 1.1E+00 2.1E+02 2.1E-07 2.2E-04 109-99-9 ~Tetrahydrofuran 598 17.94 -4.2E+02 8.6E-03 142-82-5 Heptane, N-5 0.15 -8.3E+01 3.6E-04 67-63-0 Isopropanol 9.8 0.294 -4.2E+01 1.4E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone)4150 124.5 -1.0E+03 2.4E-02 127-18-4 Tetrachloroethylene 49.1 1.473 1.1E+01 8.3E+00 1.4E-07 3.5E-02 108-88-3 Toluene 150 4.5 - 1.0E+03 8.6E-04 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-1.1 0.033 -1.0E+03 6.3E-06 79-01-6 Trichloroethylene 1.2 0.036 4.8E-01 4.2E-01 7.5E-08 1.7E-02 75-69-4 Trichlorofluoromethane 1.9 0.057 -- 95-63-6 Trimethylbenzene, 1,2,4-4.1 0.123 -1.3E+01 2.0E-03 108-67-8 Trimethylbenzene, 1,3,5-2 0.06 -1.3E+01 9.6E-04 108-38-3 Xylene, m-31.9 0.957 -2.1E+01 9.2E-03 95-47-6 Xylene, o-4.2 0.126 -2.1E+01 1.2E-03 Cumulative: 4.9E-06 1.5E-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 Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Building 1014 - Worst Case North Carolina Department of Environmental Quality Risk Calculator Old Pineville Road 4928 Old Pineville Road & 649 Scholtz Road, Charlotte, NC DEQ DWM Brownfields 11061-06-060 January 2022 November 2021 EPA RSL Table 6/16/2022 Prepared By:Hart & Hickman North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1014 - Worst Case Note: Risk output will only be calculated for complete exposure pathways. Receptor Pathway Check box if pathway complete Soil Groundwater Use Soil Groundwater Use Construction Worker Soil Soil Surface Water Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Source Soil Source Groundwater Source Soil Source Groundwater Resident Non-Residential Worker CONTAMINANT MIGRATION PATHWAYS Groundwater Surface Water Input Form 1A VAPOR INTRUSION PATHWAYS DIRECT CONTACT SOIL AND WATER PATHWAYS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator Exposure Point Concentrations Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1014 - Worst Case Description of Exposure Point Concentration Selection: Exposure Point Concentration (ug/m3) Notes:CAS Number Chemical Minimum Concentration (Qualifier) Maximum Concentration (Qualifier) Units Location of Maximum Concentration Detection Frequency Range of Detection Limits Concentration Used for Screening Background Value Screening Toxicity Value (Screening Level) (n/c) Potential ARAR/TBC Value Potential ARAR/TBC Source COPC Flag (Y/N) Rationale for Selection or Deletion 986 67-64-1 Acetone ug/m3 2.6 71-43-2 Benzene ug/m3 24.2 75-15-0 Carbon Disulfide ug/m3 2.9 74-87-3 Chloromethane ug/m3 6.8 110-82-7 Cyclohexane ug/m3 3.6 75-71-8 Dichlorodifluoromethane ug/m3 11.6 156-59-2 Dichloroethylene, cis-1,2-ug/m3 1.8 156-60-5 Dichloroethylene, trans-1,2-ug/m3 3.8 100-41-4 Ethylbenzene ug/m3 1850 109-99-9 ~Tetrahydrofuran ug/m3 1.8 142-82-5 Heptane, N-ug/m3 28.7 67-63-0 Isopropanol ug/m3 4510 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3 1.5 75-09-2 Methylene Chloride ug/m3 1.6 100-42-5 Styrene ug/m3 16.8 127-18-4 Tetrachloroethylene ug/m3 9.9 108-88-3 Toluene ug/m3 0.88 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-ug/m3 5.3 79-01-6 Trichloroethylene ug/m3 5.3 95-63-6 Trimethylbenzene, 1,2,4-ug/m3 2 108-67-8 Trimethylbenzene, 1,3,5-ug/m3 7.8 108-38-3 Xylene, m-ug/m3 2.7 95-47-6 Xylene, o-ug/m3 Input Form 2D Soil Gas Exposure Point Concentration Table Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculations North Carolina DEQ Risk Calculator Risk for Individual Pathways Output Form 1A Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1014 - Worst Case 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 7.0E-07 1.6E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air NC NC NC 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 - Resident Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1014 - Worst Case 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 986 29.58 -- 71-43-2 Benzene 2.6 0.078 3.6E-01 6.3E+00 2.2E-07 2.5E-03 75-15-0 Carbon Disulfide 24.2 0.726 -1.5E+02 9.9E-04 74-87-3 Chloromethane 2.9 0.087 -1.9E+01 9.3E-04 110-82-7 Cyclohexane 6.8 0.204 -1.3E+03 3.3E-05 75-71-8 Dichlorodifluoromethane 3.6 0.108 -2.1E+01 1.0E-03 156-59-2 Dichloroethylene, cis-1,2-11.6 0.348 -- 156-60-5 Dichloroethylene, trans-1,2-1.8 0.054 -8.3E+00 1.3E-03 100-41-4 Ethylbenzene 3.8 0.114 1.1E+00 2.1E+02 1.0E-07 1.1E-04 109-99-9 ~Tetrahydrofuran 1850 55.5 -4.2E+02 2.7E-02 142-82-5 Heptane, N-1.8 0.054 -8.3E+01 1.3E-04 67-63-0 Isopropanol 28.7 0.861 -4.2E+01 4.1E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone)4510 135.3 -1.0E+03 2.6E-02 75-09-2 Methylene Chloride 1.5 0.045 1.0E+02 1.3E+02 4.4E-10 7.2E-05 100-42-5 Styrene 1.6 0.048 -2.1E+02 4.6E-05 127-18-4 Tetrachloroethylene 16.8 0.504 1.1E+01 8.3E+00 4.7E-08 1.2E-02 108-88-3 Toluene 9.9 0.297 - 1.0E+03 5.7E-05 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-0.88 0.0264 -1.0E+03 5.1E-06 79-01-6 Trichloroethylene 5.3 0.159 4.8E-01 4.2E-01 3.3E-07 7.6E-02 95-63-6 Trimethylbenzene, 1,2,4-5.3 0.159 -1.3E+01 2.5E-03 108-67-8 Trimethylbenzene, 1,3,5-2 0.06 -1.3E+01 9.6E-04 108-38-3 Xylene, m-7.8 0.234 -2.1E+01 2.2E-03 95-47-6 Xylene, o-2.7 0.081 -2.1E+01 7.8E-04 Cumulative: 7.0E-07 1.6E-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 Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Building 1015 - Worst Case North Carolina Department of Environmental Quality Risk Calculator Old Pineville Road 4928 Old Pineville Road & 649 Scholtz Road, Charlotte, NC DEQ DWM Brownfields 11061-06-060 January 2022 November 2021 EPA RSL Table 6/16/2022 Prepared By:Hart & Hickman North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1015 - Worst Case Note: Risk output will only be calculated for complete exposure pathways. Receptor Pathway Check box if pathway complete Soil Groundwater Use Soil Groundwater Use Construction Worker Soil Soil Surface Water Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Groundwater to Indoor Air Soil Gas to Indoor Air Indoor Air Source Soil Source Groundwater Source Soil Source Groundwater Resident Non-Residential Worker CONTAMINANT MIGRATION PATHWAYS Groundwater Surface Water Input Form 1A VAPOR INTRUSION PATHWAYS DIRECT CONTACT SOIL AND WATER PATHWAYS Resident Non-Residential Worker Recreator/Trespasser North Carolina DEQ Risk Calculator Exposure Point Concentrations Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1015 - Worst Case Description of Exposure Point Concentration Selection: Exposure Point Concentration (ug/m3) Notes:CAS Number Chemical Minimum Concentration (Qualifier) Maximum Concentration (Qualifier) Units Location of Maximum Concentration Detection Frequency Range of Detection Limits Concentration Used for Screening Background Value Screening Toxicity Value (Screening Level) (n/c) Potential ARAR/TBC Value Potential ARAR/TBC Source COPC Flag (Y/N) Rationale for Selection or Deletion 709 67-64-1 Acetone ug/m3 0.74 71-43-2 Benzene ug/m3 4.7 75-15-0 Carbon Disulfide ug/m3 1.3 74-87-3 Chloromethane ug/m3 4.4 110-82-7 Cyclohexane ug/m3 2.8 75-71-8 Dichlorodifluoromethane ug/m3 2910 109-99-9 ~Tetrahydrofuran ug/m3 1.8 142-82-5 Heptane, N-ug/m3 5.1 87-68-3 Hexachlorobutadiene ug/m3 2.7 591-78-6 Hexanone, 2-ug/m3 54.8 67-63-0 Isopropanol ug/m3 2130 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3 3.1 127-18-4 Tetrachloroethylene ug/m3 2.3 108-88-3 Toluene ug/m3 0.73 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-ug/m3 3.1 79-01-6 Trichloroethylene ug/m3 2.2 75-69-4 Trichlorofluoromethane ug/m3 3.7 95-63-6 Trimethylbenzene, 1,2,4-ug/m3 2.3 108-67-8 Trimethylbenzene, 1,3,5-ug/m3 4.3 108-38-3 Xylene, m-ug/m3 2.1 95-47-6 Xylene, o-ug/m3 Input Form 2D Soil Gas Exposure Point Concentration Table Note: Chemicals highlighted in orange are non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. If the chemical list is changed from a prior calculator run, remember to select "See All Chemicals" on the data output sheet or newly added chemicals will not be included in risk calculations North Carolina DEQ Risk Calculator Risk for Individual Pathways Output Form 1A Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1015 - Worst Case 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 1.5E-06 1.2E-01 NO Indoor Air NC NC NC Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air NC NC NC 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 - Resident Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: 11061-06-060 Exposure Unit ID: Building 1015 - Worst Case 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 709 21.27 -- 71-43-2 Benzene 0.74 0.0222 3.6E-01 6.3E+00 6.2E-08 7.1E-04 75-15-0 Carbon Disulfide 4.7 0.141 -1.5E+02 1.9E-04 74-87-3 Chloromethane 1.3 0.039 -1.9E+01 4.2E-04 110-82-7 Cyclohexane 4.4 0.132 -1.3E+03 2.1E-05 75-71-8 Dichlorodifluoromethane 2.8 0.084 -2.1E+01 8.1E-04 109-99-9 ~Tetrahydrofuran 2910 87.3 -4.2E+02 4.2E-02 142-82-5 Heptane, N-1.8 0.054 -8.3E+01 1.3E-04 87-68-3 Hexachlorobutadiene 5.1 0.153 1.3E-01 -1.2E-06 591-78-6 Hexanone, 2-2.7 0.081 -6.3E+00 2.6E-03 67-63-0 Isopropanol 54.8 1.644 -4.2E+01 7.9E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone)2130 63.9 -1.0E+03 1.2E-02 127-18-4 Tetrachloroethylene 3.1 0.093 1.1E+01 8.3E+00 8.6E-09 2.2E-03 108-88-3 Toluene 2.3 0.069 - 1.0E+03 1.3E-05 76-13-1 Trichloro-1,2,2-trifluoroethane, 1,1,2-0.73 0.0219 -1.0E+03 4.2E-06 79-01-6 Trichloroethylene 3.1 0.093 4.8E-01 4.2E-01 1.9E-07 4.5E-02 75-69-4 Trichlorofluoromethane 2.2 0.066 -- 95-63-6 Trimethylbenzene, 1,2,4-3.7 0.111 -1.3E+01 1.8E-03 108-67-8 Trimethylbenzene, 1,3,5-2.3 0.069 -1.3E+01 1.1E-03 108-38-3 Xylene, m-4.3 0.129 -2.1E+01 1.2E-03 95-47-6 Xylene, o-2.1 0.063 -2.1E+01 6.0E-04 Cumulative: 1.5E-06 1.2E-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