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HomeMy WebLinkAbout11037_Double-Oaks_Northerly_Building 1012 Addl Sampling Report_rev DOUBLE OAKS BROWNFIELDS PROPERTY NORTHERLY TOWNHOMES 1986 Newland Avenue Charlotte, North Carolina Brownfields Project ID No. 11037-07-060 VIMS ADDITIONAL SAMPLING REPORT BUILDING 1012 H&H JOB NO. NVR-019 JUNE 11, 2024 2923 S Tryon Street, Suite 100 Charlotte, NC 28203 704 586 0007 harthickman.com Raleigh, NC 27607 919 847 4241 #C-1269 Engineering / #C-245 Geology i S:\AAA-Master Projects\NVR, Inc\NVR-019 - Atando Ave\VIMS Install Reports\Building 1012\2024-Add Sampling Report\Report\Double-Oaks_Northerly_Building 1012 Addl Sampling Report.docx VIMS Additional Sampling Report Building 1012 Double Oaks - Northerly Townhomes Charlotte, North Carolina Brownfields Project No. 11037-07-060 H&H Job No. NVR-019 Table of Contents 1.0 Introduction ..............................................................................................................................1 2.0 Sub-Slab Soil Gas Assessment Activities ...............................................................................4 2.1 Sub-Slab Soil Gas Sampling...................................................................................................4 2.2 Sub-Slab Soil Gas Sampling Results ......................................................................................5 2.3 Vapor Intrusion Evaluation ....................................................................................................7 3.0 Summary and Conclusions .....................................................................................................9 List of Tables Table 1 Summary of Sub-Slab Soil Gas Analytical Data List of Figures Figure 1 Site Location Map Figure 2 Site Plan List of Appendices Appendix A VIMS As-Built Drawings Appendix B Field Forms and Field Data Appendix C Laboratory Analytical Report Appendix D PVC Primer and PVC Glue Material Safety Data Sheets Appendix E DEQ Risk Calculator Summary Pages 1 S:\AAA-Master Projects\NVR, Inc\NVR-019 - Atando Ave\VIMS Install Reports\Building 1012\2024-Add Sampling Report\Report\Double-Oaks_Northerly_Building 1012 Addl Sampling Report.docx VIMS Additional Sampling Report Building 1012 Double Oaks - Northerly Townhomes Charlotte, North Carolina Brownfields Project No. 11037-07-060 H&H Job No. NVR-019 1.0 Introduction Hart & Hickman, PC (H&H) has prepared this report to document additional sub-slab soil gas sampling activities completed for Building 1012 at the Northerly Townhomes development at the Double Oaks North Carolina Department of Environmental Quality (DEQ) Brownfields Property (Brownfields Project No. 11037-07-060). The property is located at 1386 Newland Avenue in Charlotte, Mecklenburg County, North Carolina (Site or subject Site). The Site consists of two parcels of land (Parcel ID Nos.: 07707902 and 07707903) that total approximately 5.37 acres. The larger parcel (Parcel No. 07707902) is approximately 5.26 acres in size and is part of a larger Brownfields property (referred to as the Double Oaks Brownfields property), which is comprised of multiple parcels of contiguous and noncontiguous parcels of land that total approximately 56 acres. The smaller parcel (Parcel No. 07707903) is approximately 0.11-acre and is not part of the Double Oaks Brownfields property. The Northerly Townhomes (also known as the Atando Northerly) development plan includes construction of 17 buildings consisting of 96 for-sale townhome units by Ryan Homes, an NVR, Inc. (NVR) company. The buildings include one 4-unit townhome building, eight 5-unit townhome buildings, five 6-unit townhome buildings, and three 7-unit townhome buildings. This report has been prepared for Atando Townhomes Building 1012 which includes a total of six townhome units (Units 63 through 68) constructed in the south-eastern portion of the Site. The units are also identified with a letter designation (Units A through F) in the as-builts drawings and sample identifications. A Site location map is provided as Figure 1, and a Site Plan that identifies Building 1012 is shown in Figure 2. A table listing the unit numbers, associated unit letter identifications, monitoring point identifications (see Section 2.0), and unit addresses for Building 1012 is included below. 2 S:\AAA-Master Projects\NVR, Inc\NVR-019 - Atando Ave\VIMS Install Reports\Building 1012\2024-Add Sampling Report\Report\Double-Oaks_Northerly_Building 1012 Addl Sampling Report.docx Building 1012 H&H previously completed soil and soil gas sampling assessment activities for the Site in December 2021, January 2022, and April 2023 to evaluate subsurface conditions for potential impacts. Results of previous exterior soil gas assessment activities completed at the Site identified chloroform, naphthalene, and bromodichloromethane in soil gas samples at concentrations above their respective DEQ Division of Waste Management (DWM) Residential Soil Gas Screening Levels (SGSLs). Further, the chlorinated solvents trichloroethylene (TCE) and tetrachloroethylene (PCE) were detected in one location, VSP-5, in the northeast portion of the property at concentrations above the laboratory method detection limits but below their respective Residential SGSLs. PCE was also detected at low levels below its Residential SGSL in several other samples. An Environmental Management Plan (EMP), dated May 17, 2022, describing Site assessment activities conducted prior to May 2022 and was submitted to and approved by DEQ. A Brownfields Agreement between Double Oaks Development, LLC and DEQ was recorded for the Site on October 27, 2010, with an amendment to the Brownfields Agreement recorded on December 15, 2016. Double Oaks Development has since sold a portion of the property to NVR where the Site is located. Based on the Site information presented above and in accordance with the requirements of the DEQ-approved EMP, plus additional discussions with DEQ, a VIMS will be installed at Buildings 1002, 1004, and 1005 at the Site by NVR during construction of the buildings, and a VIMS has been installed in Building 1012. In addition to the passive VIMS in these buildings, the developer (NVR) will also install or has already installed a vapor barrier below the slab of the 13 remaining buildings (1001, 1003, 1006 through 1011, and 1013 through 1017) at the Site as a precautionary measure. H&H prepared the Vapor Intrusion Mitigation Plan 3 S:\AAA-Master Projects\NVR, Inc\NVR-019 - Atando Ave\VIMS Install Reports\Building 1012\2024-Add Sampling Report\Report\Double-Oaks_Northerly_Building 1012 Addl Sampling Report.docx (VIMP) and revisions to the VIMP based on DEQ comments describing the VIMS design for these buildings. The VIMP – Revision 2 dated June 13, 2023, was approved by DEQ in a letter dated June 30, 2023. Building 1012 consists of six individually owned three-story townhomes. Each unit includes a stairwell, garage, and living spaces located on the ground floor of the structure. The ground floor for each townhome unit is approximately 640 square feet. The second and third floors of each unit contain living spaces. Each of the units contains a flat roof with an attic space (i.e. roof heel) that is approximately 3-feet thick between the ceiling of the top floor and the roof. The VIMS installed within Building 1012 is a passive sub-slab depressurization system comprised of sub-slab vent piping set within a stone base below the ground floor slabs, riser pipes that extend from the slab to the building’s roof, and ventilators installed on the rooftop to promote air exhaust from the risers. The installation of the passive VIMS in Building 1012 was described in the H&H VIMS Installation Completion Report – Atando Townhomes Building 1012, dated October 21, 2023 (VIMS Installation Report). DEQ subsequently issued the Conditional Compliance Review Building 1012 letter dated October 31, 2023 with the condition to perform an additional sub-slab soil gas (sub-slab vapor) sampling event at Units B and D in Building 1012 due to elevated concentrations of several compounds generally associated with off-gassing from building materials (see Section 2.0). The additional sampling requested by DEQ was conducted in November 2023. However, the November 2023 results indicated elevated concentrations of similar compounds compared to the original sampling event. Therefore, upon further discussion with DEQ, Units B and D were subsequently sampled again in April 2024. The sub-slab soil gas sampling from November 2023 and April 2024 are described in this report. In addition, data associated with the original sampling event (September 2023) is included for reference. Additional details regarding the VIMS installation are included in the VIMS Installation Report, and VIMS as-built drawings are also included in Appendix A for ease of reference. 4 S:\AAA-Master Projects\NVR, Inc\NVR-019 - Atando Ave\VIMS Install Reports\Building 1012\2024-Add Sampling Report\Report\Double-Oaks_Northerly_Building 1012 Addl Sampling Report.docx 2.0 Sub-Slab Soil Gas Assessment Activities The sub-slab soil gas 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. 2.1 Sub-Slab Soil Gas Sampling On September 6, 2023 and as documented in the VIMS Installation Report, H&H collected three sub-slab soil gas samples from permanent monitoring points in Building 1012 prior to occupancy of the building as part of the VIMS efficacy testing. The sampling was performed following VIMS installation activities and approximately two weeks after installation of the stationary ventilators. The sub-slab soil gas samples were collected from permanent monitoring point locations MP- 1012-B (sample ID SS-1012-B), MP-1012-D (sample ID SS-1012-D), and MP-1012-F (sample ID SS-1012-F) as shown on Drawing VM-2 (Appendix A). One duplicate sub-slab soil gas sample (SS-1012-DUP) was collected for quality assurance/quality control (QA/QC) purposes during the event from the SS-1012-F parent location. 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. Based on the conditional compliance review letter (Section 1.0) and subsequent discussions with DEQ, additional sub-slab soil gas sampling occurred on November 13, 2023 and again on April 30, 2024. The sub-slab soil gas samples were collected from permanent monitoring point locations MP-1012-B (sample IDs: SSV-1012B and SS-1012-B) and MP-1012-D (sample IDs: SSV-1012D and SS-1012-D), during the November 2023 and April 2024 sampling events, respectively. One duplicate sub-slab soil gas sample (SS-1012-DUP) was collected for quality assurance/quality control (QA/QC) purposes from the SS-1012-B parent location during the November 2023 and April 2024 sampling events. To collect the sub-slab soil gas samples, Teflon sample tubing was attached 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 5 S:\AAA-Master Projects\NVR, Inc\NVR-019 - Atando Ave\VIMS Install Reports\Building 1012\2024-Add Sampling Report\Report\Double-Oaks_Northerly_Building 1012 Addl Sampling Report.docx stainless steel Summa canister. The air flow regulator was preset by the laboratory to collect a soil gas sample at a flow rate of approximately 100 milliliters per minute. 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 10 to 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 above the threshold which indicates unacceptable short-circuiting at the monitoring points or within the sampling train were not present. Soil gas sampling field forms completed by sampling personnel in November 2023 and April 2024 are included in Appendix B. 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, pressure measurements, and the requested analysis. The canisters were then placed in laboratory supplied shipping containers and delivered to Waypoint Analytical (Waypoint) under standard chain of custody protocols for analysis of volatile organic compounds (VOCs) by Environmental Protection Agency (EPA) Method TO-15. 2.2 Sub-Slab Soil Gas Sampling Results The sub-slab soil gas sample analytical results are summarized in Table 1. The results were compared to the DEQ DWM Residential Vapor Intrusion SGSLs dated July 2023 for the samples 6 S:\AAA-Master Projects\NVR, Inc\NVR-019 - Atando Ave\VIMS Install Reports\Building 1012\2024-Add Sampling Report\Report\Double-Oaks_Northerly_Building 1012 Addl Sampling Report.docx collected in 2023. The 2024 sample results were compared to the DEQ DWM Residential Vapor Intrusion SGSLs dated February 2024. The laboratory analytical reports for the November 2023 and April 2024 sampling events with chain of custody records are provided in Appendix C. The September 2023 analytical data was previously described in the VIMS Installation Report, but for ease of reference, a summary of the September 2023 analytical results is included below and in Table 1. For both the November 2023 and April 2024 sampling results, the laboratory results indicated comparable compounds detected and comparable concentrations between the parent and duplicate samples, thereby indicating good laboratory reproducibility for the results. September 2023 Sample Results The September 2023 sub-slab soil gas sample analytical results indicate that multiple compounds were detected in each sample above the laboratory method detection limit (MDL), but below their respective Residential SGSL. The chlorinated solvents TCE and PCE were not detected above the laboratory MDLs in the samples collected in September 2023. Acetone, 2-butanone (methyl ethyl ketone [MEK]), and tetrahydrofuran were detected at concentrations that were orders of magnitude above the other compounds detected in each sample. Acetone and 2-butanone were each detected at concentrations below the Residential SGSLs. Tetrahydrofuran was detected above the Residential SGSL of 14,000 μg/m3 at a concentration of 35,200 μg/m3 in sample SS-1012-B. As stated earlier, due to the elevated concentrations of these compounds and associated elevated laboratory MDLs for other compounds, DEQ requested additional sampling for Units B and D after review of the VIMS Installation Report. Note, DEQ did not request additional sampling for Unit F in Building 1012 which contained lower concentrations of the abovementioned compounds. November 2023 Sample Results The November 2023 sub-slab soil gas sample analytical results indicate that tetrahydrofuran was the only compound that exceeded its Residential SGSL in any of the samples. The concentrations of tetrahydrofuran in the samples ranged from 50,000 E μg/m3 to 113,000 E μg/m3, which exceeded the Residential SGSL of 14,000 μg/m3. This concentration contained the laboratory “E” qualifier, which indicates the concentration exceeded the calibration range of the laboratory instrument. 7 S:\AAA-Master Projects\NVR, Inc\NVR-019 - Atando Ave\VIMS Install Reports\Building 1012\2024-Add Sampling Report\Report\Double-Oaks_Northerly_Building 1012 Addl Sampling Report.docx Multiple other compounds during the November 2023 sample event were detected in each sample above the laboratory MDL, but below their respective Residential SGSL. Acetone, MEK, and isopropanol were detected at concentrations higher than concentrations detected during the September 2023 event. The chlorinated solvents TCE and PCE were not detected above the laboratory MDLs in the samples collected in November 2023. April 2024 Sample Results The April 2024 sub-slab soil gas sample analytical results indicated that no compounds exceeded Residential SGSLs, including the compound tetrahydrofuran where the concentration decreased by approximately two orders of magnitude as compared to the November 2023 sampling results. The chlorinated solvent PCE was detected at estimated low concentrations ranging from 1.02 J μg/m3 to 1.26 J μg/m3, which are orders of magnitude below the Residential SGSL of 280 μg/m3. The chlorinated compound TCE was not detected above the laboratory MDLs in the samples collected in April 2024. 2.3 Vapor Intrusion Evaluation The elevated compounds during the September 2023 and November 2023 sampling events were generally comprised of acetone, MEK, and tetrahydrofuran. Acetone and MEK are two of the main components in PVC primer, and tetrahydrofuran is one of the main components in PVC glue. PVC primer and glue are common construction materials used throughout construction of the townhome units, including on the sub-slab plumbing pipes. Therefore, these compound detections are attributable to VOC off-gassing from the building materials. As expected, the concentrations of these compounds significantly decreased during the April 2024 event as the VOCs from building materials off-gassed overtime. Material safety data sheets for PVC glue and primer used during construction are included as Appendix D. 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 8 S:\AAA-Master Projects\NVR, Inc\NVR-019 - Atando Ave\VIMS Install Reports\Building 1012\2024-Add Sampling Report\Report\Double-Oaks_Northerly_Building 1012 Addl Sampling Report.docx 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 (dated July 2023 and February 2024) 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 during each event below Building 1012 in a residential use scenario to conservatively evaluate potential vapor intrusion risks. The calculated cumulative LICR and HI values are provided in Table 1, and a copy of the completed DEQ Risk Calculator for the November 2023 and April 2024 sampling events is provided in Appendix E. As shown in Table 1, results of the worst-case risk calculations indicated a calculated cumulative LICR of 5.5 x 10-8 and a HI value of 0.59 during the September 2023 sample event, which indicated acceptable risk levels for residential use. The additional sampling event conducted in November 2023 indicated a calculated cumulative LICR of 2.9 x 10-5 and a HI value of 3.8, which indicates an acceptable LICR, but an HI over the acceptable risk level. The second additional sampling event conducted in April 2024 indicated a calculated cumulative LICR of 3.6 x 10-7 and a HI value of 0.045. The calculated cumulative residential use LICR and HI values during this most recent sampling event are well within the DEQ and EPA acceptable levels. These risk calculator results confirm that compound concentrations detected below the slab do not pose vapor intrusion risks at unacceptable levels within the townhome units at Building 1012, and the data provides additional evidence that the previous elevated concentrations detected at Units B and D were attributable to VOC off-gassing from building materials and these concentrations have decreased overtime. 9 S:\AAA-Master Projects\NVR, Inc\NVR-019 - Atando Ave\VIMS Install Reports\Building 1012\2024-Add Sampling Report\Report\Double-Oaks_Northerly_Building 1012 Addl Sampling Report.docx 3.0 Summary and Conclusions Construction of Building 1012 of the Northerly Townhomes development has been completed at the Double Oaks Brownfields property (Brownfields Project No. 11037-07-060) located in Charlotte, North Carolina. Installation of the VIMS was reported under separate cover with the original sub-slab soil gas sampling event conducted in September 2023. Based on DEQ comments and conditional compliance approval letter, additional sub-slab soil gas sampling events for Units B and D were conducted in November 2023 and April 2024. The September 2023 and November 2023 sub-slab soil gas sampling events indicated there were elevated concentrations of several compounds, including MEK and tetrahydrofuran, associated with VOC off-gassing from building materials that contributed to elevated laboratory MDLs for other compounds. In addition, the risk calculations for the November 2023 sampling event indicated the hazard index exceeded the acceptable residential risk level. However, the April 2024 sub-slab soil gas sampling event indicated the concentrations below the slabs of Units B and D had decreased with the April 2024 risk calculations indicating acceptable risk levels under a residential use scenario. These risk calculator results confirm that compound concentrations detected below the slab do not pose vapor intrusion risks at unacceptable levels within the townhome units at Building 1012, and the data provides additional evidence that the previous elevated concentrations detected at Units B and D were attributable to VOC off-gassing from building materials. Based on the analytical data, and the presence of the VIMS as detailed in the VIMS Installation Report, no further sub-slab soil gas analytical sampling is recommended for Building 1012. Further, the additional sampling described herein was conducted to comply with the condition listed in the Conditional Compliance Review Building 1012 letter from DEQ dated October 31, 2023. Copyright:© 2013 National Geographic Society, i-cubed SITE LOCATION MAP ATANDO - DOUBLE OAKS PROPERTY 1302 & 1340 NEWLAND AVENUE CHARLOTTE, NORTH CAROLINA DATE: 11-16-21 JOB NO: BWR-013 REVISION NO: 0 FIGURE NO: 1 2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology TITLE PROJECT 0 2,000 4,000 SCALE IN FEET SITE Pa t h : S : \ A A A - M a s t e r P r o j e c t s \ C h a r l o t t e M e c k l e n b u r g H o u s i n g P a r t n e r s h i p - C H P \ C H P - 0 3 9 D o u b l e O a k s S o i l P i l e \ F i g u r e s \ F i g u r e - 1 . m x d N U.S.G.S. QUADRANGLE MAP DERITA, NORTH CAROLINA 2013CHARLOTTE EAST, NORTH CAROLINA 2013 QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC) LEGEND SITE PROPERTY BOUNDARY PARCEL BOUNDARY SURFACE WATER FEATURE PROPOSED BUILDING FOOTPRINT ST A T E S V I L L E A V E N U E NEW L A N D R O A D SAM U E L S T R E E T HOLLAND AVENUE SAM U E L S T R E E T NOTES: 1.AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS (2020). 2.DEVELOPMENT PLAN OBTAINED FROM NVR, INC. DEVELOPMENT LAYOUT IS APPROXIMATE. BLDG 1 0 0 8 BLD G 1 0 0 7 BLD G 1 0 0 6 BLD G 1 0 0 1 BLD G 1 0 0 2 BLD G 1 0 0 3 BLDG 1 0 0 4 BLDG 1 0 0 5 BLDG 1 0 1 1 BLDG 1 0 1 0 BLDG 1 0 0 9 BLDG 1 0 1 2 BLDG 1 0 1 3 BL D G 1 0 1 4 BL D G 1 0 1 5 BL D G 1 0 1 6 BL D G 1 0 1 7 REVISION NO. 0 JOB NO. NVR-019 DATE: 6-12-23 FIGURE NO. 2 ATANDO-DOUBLE OAKS PROPERTY NEWLAND 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 A B C D E A B C D A B C D E F A B C D E F A B CD E A B C D E F G A B C D E F G A B C D E F G ABCDE ABCDE ABCDE ABCDEF ABCDEF A B C D E F A B C D E A B C D E A B C D E S:\ A A A - M a s t e r P r o j e c t s \ N V R , I n c \ N V R - 0 1 9 - A t a n d o A v e \ V I M P \ S i t e M a p _ 2 0 2 3 . 0 2 . 1 4 . d w g Table 1 Summary of Sub-Slab Soil Gas Analytical Data Atando Townhomes - Building 1012 Charlotte, North Carolina Brownfields Project No. 11037-07-060 H&H Job No. NVR-019 Building Number Sample ID SS-1012-B SS-1012-D SSV-1012-D SS-1012-D Sample Date Units µg/m3 VOCs (TO-15) Acetone 20,400 9,270 2,690 2,750 39,100 E 38,400 E 33,600 E 627 626 832 NE Benzene <1.46 <1.46 <0.366 <0.366 <1.46 <1.46 <1.46 0.277 J 0.469 J 0.456 J 12 Carbon Disulfide <1.22 <1.22 2.16 J 6.29 J <1.22 <1.22 6.04 J 0.249 J,B 0.713 J,B 0.697 J,B 4,900 Chloroform <1.73 <1.73 <0.431 <0.431 <1.73 <1.73 <1.73 1.24 J 1.20 J 0.912 J 4.1 Chloromethane <1.34 <1.34 <0.336 <0.336 <1.34 <1.34 13.1 J <0.067 0.526 J 0.408 J 630 Cyclohexane <3.22 <3.22 <0.804 10.5 J <3.22 <3.22 <3.22 1.91 J <0.161 <0.161 42,000 Dichlorodifluoromethane (Freon 12)<2.68 <2.68 <0.672 3.44 J <2.68 <2.68 <2.68 2.35 J 2.42 J 2.37 J 700 Ethyl Acetate <2.72 <2.72 <0.680 <0.680 <2.72 <2.72 <2.72 <0.136 <0.136 1.84 490 Ethylbenzene <2.12 <2.12 <0.532 2.02 J <2.12 <2.12 <2.12 0.395 J 0.425 J 0.577 J 37 4-Ethyltoluene <2.56 <2.56 2.38 J <0.640 <2.56 <2.56 <2.56 <0.128 <0.128 0.403 J NE Isopropanol 51.9 J 19.2 J 6.72 J 5.94 J 90.9 J 89.4 J 101 1.77 J,B 4.63 J,B 21.8 1,400 2-Butanone (MEK)857 1,160 2,550 2,670 7,710 7,270 1,870 176 177 231 35,000 Methylene Chloride <9.75 <9.75 <2.44 4.97 J <9.75 <9.75 <9.75 <0.488 0.778 J 0.531 J 3,400 Styrene <2.48 <2.48 <0.617 <0.617 <2.48 <2.48 <2.48 <0.124 <0.124 0.353 J 7,000 Tetrachloroethylene <3.62 <3.62 <0.907 <0.907 <3.62 <3.62 <3.62 1.04 J 1.02 J 1.26 J 280 Tetrahydrofuran 35,200 E 13,700 6,550 6,800 51,600 E 50,000 E 113,000 E 1,230 1,230 2,410 14,000 Toluene 17.3 J 29.7 J 76.6 76.4 <1.80 <1.80 184 2.49 2.72 2.50 35,000 Trichloroethylene <3.98 <3.98 <0.990 <0.990 <3.98 <3.98 <3.98 <0.199 <0.199 <0.199 14 Trichlorofluoromethane (Freon 11)12.4 J 11.1 J 3.68 J 4.04 J <2.60 <2.60 <2.60 1.75 J 1.88 J 1.80 J NE 1,2,4-Trimethylbenzene <2.20 66.1 7.69 J 4.55 J <2.20 <2.20 <2.20 1.04 J 1.07 J 1.66 J 420 1,3,5-Trimethylbenzene <4.72 <4.72 2.19 J <1.18 <4.72 <4.72 <4.72 0.403 J <0.236 0.565 J 420 o-Xylene <3.14 9.90 J 3.37 J 2.95 J <3.14 <3.14 <3.14 0.981 J 0.976 J 1.35 J 700 m&p-Xylene <4.34 26.4 J 8.05 J 7.82 J 7.99 J <4.34 7.82 J 1.77 J 1.83 J 2.47 J 700 Xylene (Total)<3.14 36.3 J 11.4 J 10.8 J 7.99 J <3.14 7.82 J 2.75 J 2.81 J 3.82 J 700 DEQ Risk Calculator (2)Acceptable Risk Levels Cumulative LICR Cumulative HI <1.0 Sub-Slab and Exterior Soil Gas (SGSLs) dated February 2024. Bold value indicates an exceedance of the Residential SGSL. in a laboratory estimated concentration. 3.8 Worst Case Residential - Soil Gas to Indoor Air Worst Case Residential - Soil Gas to Indoor Air Worst Case Residential - Soil Gas to Indoor Air Building 1012 Residential SGSLs(1) 9/6/2023 11/13/2023 4/30/2024 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NVR, Inc/NVR-019 - Atando Ave/VIMS Install Reports/Building 1012/2024-04 Sub Slab Resample/Table 1 - Bldg 1012 Data Summary 04.30.24 Update Hart & Hickman, PC Appendix A VIMS As-Built Drawings MP-1012-E MP-1012-F MP-1012-A MP-1012-D MP-1012-C MP-1012-B 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 VAPOR INTRUSION MITIGATION SYSTEM PLAN VM-1 H&H NO. NVR.019 AS-BUILT DRAWING BUILDING 1012 OCTOBER 21, 2023 LEGEND EXTENT OF VAPOR BARRIER (SEE SPECIFICATION #4 ON SHEET VM-A) SOIL GAS COLLECTOR MAT (SEE SPECIFICATION #4) 3" SCH 40 PVC VERTICAL RISER - GROUND FLOOR LOCATION 3" SCH 40 PVC VERTICAL RISER - ROOF DISCHARGE LOCATION 2" SCH 40 PVC VACUUM MONITORING POINT WITH OPEN END THICKENED SLAB AT LOAD BEARING WALL NE W L A N D A V E N U E C H A R L O T T E , N O R T H C A R O L I N A DO U B L E O A K S B R O W N F I E L D S P R O P E R T Y BR O W N F I E L D S P R O J E C T N U M B E R 1 1 0 3 7 - 0 7 0 - 6 0 AT A N D O T O W N H O M E S NOTES: 1.ONE VACUUM MONITORING POINT WAS INSTALLED PER UNIT. IF THE UNIT IS AN END UNIT, THEN VACUUM MONITORING POINT WAS INSTALLED ON THE BACKSIDE OF THE UNIT. IF THE UNITS ARE INTERIOR UNITS, THEN THE VACUUM MONITORING POINT WAS INSTALLED ON THE FRONT SIDE OF THE UNIT. 2.INTAKE OF MONITORING POINT WAS POSITIONED A MINIMUM OF 3-FT FROM ANY EXTERIOR TURNED DOWN SLAB. 3.REFER TO SPECIFICATIONS AND SECTION DETAILS ON SHEETS VM-A AND VM-B. 4.EACH UNIT IS APPROXIMATELY 640 SQ FT (16 FT X 40 FT). UNIT 63 (F) 3114 COQUINA LANE UNIT 64 (E) 3118 COQUINA LANE UNIT 65 (D) 3122 COQUINA LANE UNIT 66 (C) 3126 COQUINA LANE UNIT 67 (B) 3130 COQUINA LANE UNIT 68 (A) 3134 COQUINA LANE COQUINA LANE 5 VM-B 6 VM-B 9 VM-B 4 VM-B 3 VM-B 7 VM-B 8 VM-B 2 VM-B 4 VM-B 3 VM-B 5 VM-B 6 VM-B 7 VM-B 8 VM-B 2 VM-B 4 VM-B 3 VM-B 8 VM-B 5 VM-B 6 VM-B 3 VM-B 7 VM-B 9 VM-B 9 VM-B 2 VM-B 4 VM-B 10 VM-B 10 VM-B 10 VM-B 10/21/23 S: \ A A A - M a s t e r P r o j e c t s \ N V R , I n c \ N V R - 0 1 9 - A t a n d o A v e \ V I M S I n s t a l l R e p o r t s \ B u i l d i n g 1 0 1 2 \ 3 - F i g u r e s \ N V R . 0 1 9 _ V I M S A s - B u i l t s . d w g , V M - 1 , S V i n c e n t 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 VAPOR INTRUSION MITIGATION SYSTEM PLAN VM-A NE W L A N D A V E N U E C H A R L O T T E , N O R T H C A R O L I N A DO U B L E O A K S B R O W N F I E L D S P R O P E R T Y BR O W N F I E L D S P R O J E C T N U M B E R 1 1 0 3 7 - 0 7 0 - 6 0 AT A N D O T O W N H O M E S H&H NO. NVR.019 AS-BUILT SPECIFICATIONS BUILDING 1012 PROFESSIONAL APPROVAL / SEAL OCTOBER 21, 2023 VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS 1.THE AS-BUILT DRAWINGS ARE INTENDED TO DOCUMENT THE VIMS COMPONENT INSTALLATION ONLY AND ARE 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.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 INSPECTIONS INCLUDED: (1) INSPECTION OF SUB-SLAB PIPING LAYOUT AND GRAVEL PLACEMENT PRIOR TO INSTALLING VAPOR BARRIER (LINER); (2) INSPECTION OF VAPOR BARRIER PRIOR TO POURING CONCRETE; (3) INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (4) INSPECTION OF FAN AND VENT PIPE CONNECTIONS. 3.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS WERE INSTRUCTED TO USE "LOW OR NO VOC" (INCLUDING NO PCE OR TCE) PRODUCTS AND MATERIALS, WHEN POSSIBLE. THE CONSTRUCTION CONTRACTOR AND SUB-CONTRACTORS PROVIDED SELECT SAFETY DATA SHEETS (SDS) TO THE ENGINEER FOR PRODUCTS AND MATERIALS USED DURING CONSTRUCTION. 4.VIMS VAPOR BARRIER IS VAPORBLOCK PLUS 20 VAPOR BARRIER MANUFACTURED BY VIAFLEX,INC. THE VAPOR BARRIER WAS INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS BARRIER BELOW GROUND FLOOR SLABS AND FOOTERS. A BASE COURSE CONSISTING OF CLEAN #57 STONE WAS INSTALLED BENEATH THE VIMS VAPOR BARRIER. IN AREAS AROUND THE SOIL GAS COLLECTOR MAT, THE BASE COURSE LAYER WAS INSTALLED WITH A MINIMUM 2-INCH LAYER BELOW THE MAT AND A MINIMUM THICKNESS OF 4-INCHES ACROSS THE ENTIRE SLAB. PENETRATIONS WERE SEALED IN GENERAL ACCORDANCE TO VAPOR BARRIER MANUFACTURER INSTALLATION INSTRUCTIONS AS FOUND IN THE MANUFACTURER INSTALLATION GUIDELINES. SMALL PUNCTURE HOLES WERE SEALED WITH THE VAPORSEALTM TAPE AND LARGER TEARS OR DAMAGE WERE REPAIRED USING A PATCH THAT OVERLAPPED THE DAMAGED AREA AND THEN WAS TAPED ALONG THE SEAMS. 5.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS WERE INSTRUCTED TO AVOID THE USE OF TEMPORARY FORM BOARDS THAT PENETRATE THE VAPOR BARRIER WHERE POSSIBLE. IF TEMPORARY FORM BOARDS WERE USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR BARRIER 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 BARRIER MANUFACTURER INSTALLATION INSTRUCTIONS. 6.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. 7.3” SCH 40 PVC RISER DUCT PIPING EXTENDS IN A VERTICAL ORIENTATION THROUGH THE BUILDING ROOF AND TERMINATES A MINIMUM OF 1 FT ABOVE THE BUILDING ROOF LINE. ACTIVE VENTILATION PRODUCTS AURA AV-3-PVC ALUMINUM VENTILATORS WERE INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE. 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. AN ELECTRICAL JUNCTION BOX (120VAC) WAS INSTALLED NEAR THE RISER WITHIN THE ATTICE SPACE FOR CONVERSION TO ELECTRIC FANS, IF REQUIRED. 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 MAINTENANCE". THE RISER PIPE AT THE VENTILATOR WAS LABELED WITH "VAPOR MITIGATION SYSTEM - CONTACT HOA IF DAMAGED" IN AN ACCESSIBLE LOCATION IN THE ATTIC. 10/21/23 S: \ A A A - M a s t e r P r o j e c t s \ N V R , I n c \ N V R - 0 1 9 - A t a n d o A v e \ V I M S I n s t a l l R e p o r t s \ B u i l d i n g 1 0 1 2 \ 3 - F i g u r e s \ N V R . 0 1 9 _ V I M S A s - B u i l t s . d w g , V M - A , S V i n c e n t VIMS VAPOR BARRIER AND BASE COURSE1 NTSVM-B BASE COURSE - CLEAN # 57 STONE (WASHED WITH NO FINES), MIN 4" THICK BENEATH VIMS VAPOR BARRIER (SEE SPECIFICATION #4) VAPOR BARRIER (SEE SPECIFICATION #4)CONCRETE FLOOR SLAB SUB-BASE CONCRETE FLOOR SLAB VIMS SUB-SLAB SLOTTED COLLECTION PIPE2 NTSVM-B SUB-BASE SOIL GAS COLLECTOR MAT SET WITHIN MIN 4" BASE COURSE (SEE SPECIFICATION #4) SECTION THROUGH EXTERIOR WALL3 NTSVM-B VAPOR BARRIER SEALED TO CONCRETE PER MANUFACTURER INSTRUCTIONS SUB-BASEIF EXTERIOR GRADE IS HIGHER THAN THE SLAB ELEVATION, VAPOR BARRIER WAS WRAPPED UP THE SIDE OF THE FOOTER EXTERIOR GRADE (VARIES) FULLY GROUTED CMU BLOCK WALL STUD WALL BRICK OR HOUSE SIDING EXTERNAL WALL (NOT PRESENT AT ALL LOCATIONS) BASE COURSE VAPOR BARRIER FOOTER SECTION THROUGH TURNED DOWN SLAB AT DRIVEWAY4 NTSVM-B COMPACTED FILL BELOW DRIVEWAY DRIVEWAY STUD WALL OR EXTERNAL WALL (NOT PRESENT IN ALL LOCATIONS) GARAGE SUB-BASE BASE COURSE VAPOR BARRIER SEALED TO CONCRETE PER MANUFACTURER INSTRUCTIONSEXTEND VAPOR BARRIER TO OUTSIDE OF FOOTER SECTION THROUGH TENANT SEPARATION BLOCK WALL5 NTSVM-B VAPOR BARRIER SEALED TO CONCRETE PER MANUFACTURER INSTRUCTIONS SUB-BASE BASE COURSE FOOTER VAPOR BARRIER BENEATH CONCRETE BLOCK FOUNDATION FULLY GROUTED CMU BLOCK WALL, WHERE PRESENT SINGLE OR DOUBLE STUD SEPARATION WALL CONCRETE FLOOR SLAB BASE COURSE SUB-BASE VIMS PIPING THROUGH THICKENED SLAB NTS 6 VM-B SOLID 3" SCH 40 PVC VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS PIPE SUPPORT TO PREVENT LOW POINT IN SOLID PIPE. MAINTAINED 1% SLOPE TOWARD SLOTTED SECTION OF PIPE VAPOR BARRIER VAPOR BARRIER BENEATH FOOTER WALL (VARIES) SOIL GAS COLLECTOR MAT MANUFACTURER SPECIFIED FITTING TO 3" SCH 40 PVC SOIL GAS COLLECTOR MAT WAS NOT INSTALLED THROUGH CONCRETE FOOTERS OR THICKENED SLABS VIMS PIPING THROUGH SLAB STEPS NTS 7 VM-B SUB-BASE MINIMUM 1% SLOPE TOWARD SLOTTED SECTIONS BASE COURSE 3" SCH 40 PVC 45-DEGREE ELBOW VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS SOLID 3" SCH 40 PVC WALL (VARIES) VAPOR BARRIER SLOPE MANUFACTURER SPECIFIED FITTING TO 3" SCH 40 PVC SOIL GAS COLLECTOR MAT VIMS AT VERTICAL RISER NTS 8 VM-B BRICK OR HOUSE SIDING EXTERNAL WALL (NOT PRESENT AT ALL LOCATIONS) STUD WALL VAPOR BARRIER SEALED TO PIPE AND CONCRETE PER MANUFACTURER INSTRUCTIONS. 3" SCH 40 PVC RISER DUCT PIPE (SEE SPECIFICATION #6 & #7) 4" TO 3" PVC REDUCER 4" SCH 40 PVC RISER DUCT PIPE BASE COURSE SOIL GAS COLLECTOR MAT SUB-BASE SOIL GAS COLLECTOR MAT CONNECTION SEALED TO 4" 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) VAPOR BARRIER TERMINATED AT SOIL GRADE MECH. CLOSET VAPOR BARRIER EXTERIOR PERMANENT VACUUM MONITORING POINT9 NTSVM-B SLOPE WALL (VARIES)LOCKABLE WEATHERPROOF ENCLOSURE PROVIDED ON OUTSIDE OF BUILDING WALL. LABEL AT BOX WITH "VAPOR MITIGATION SYSTEM". PLACE REMOVABLE PIPE PLUG AT END OF 2" PIPE. VAPOR BARRIER SEALED TO CONCRETE PER MANUFACTURER INSTRUCTIONS 2" SCH 40 PVC 90 DEGREE ELBOW 2" SOLID SCH 40 PVC PIPE FINAL GRADE (VARIES)BASE COURSE 2" OPEN-ENDED PIPE, PLACED A MINIMUM OF 3' FROM EXTERIOR TURN-DOWN SLABS VAPOR BARRIER VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS VIMS EXHAUST AT ROOFTOP WITH HORIZONTAL OFFSET NTS FROM RISER (SEE DETAIL 8) ROOFTOP PIPE SUPPORTS 10 VM-B ATTIC HATCH/OPENING SOLID 3" SCH 40 PVC, LENGTH VARIES ELECTRICAL JUNCTION BOX FOR POTENTIAL FUTURE VACUUM FAN (SEE TO SPECIFICATION #7) DISCHARGE TERMINATES MINIMUM 1' ABOVE ROOF AND 10-FT FROM OPERABLE OPENING INTO BUILDING.WATERPROOF FLASHING STATIONARY VENTILATOR (SEE SPECIFICATION #7) SLOPE MIN 1% SLOPE TOWARD EXTRACTION POINT 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 H&H NO. NVR.019 VAPOR INTRUSION MITIGATION SYSTEM PLAN VM-B AS-BUILT DETAILS BUILDING 1012 PROFESSIONAL APPROVAL / SEAL OCTOBER 21, 2023 NE W L A N D A V E N U E C H A R L O T T E , N O R T H C A R O L I N A DO U B L E O A K S B R O W N F I E L D S P R O P E R T Y BR O W N F I E L D S P R O J E C T N U M B E R 1 1 0 3 7 - 0 7 0 - 6 0 AT A N D O T O W N H O M E S 10/21/23 S: \ A A A - M a s t e r P r o j e c t s \ N V R , I n c \ N V R - 0 1 9 - A t a n d o A v e \ V I M S I n s t a l l R e p o r t s \ B u i l d i n g 1 0 1 2 \ 3 - F i g u r e s \ N V R . 0 1 9 _ V I M S A s - B u i l t s . d w g , V M - B , S V i n c e n t Appendix B Field Forms and Field Data &Žƌŵ^sͲϭ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͗ ͗ Z͗ ^͗ ͗ Z͗ ^͗ ͗ Z͗ ^͗ ͗ Z͗ ^͗ ͗ Z͗ ^͗ ͗ Z͗ 6 VDPSOH,'& FDQLVWHU,'5 UHJXODWRU,'66 VXEVODE6* VRLOJDV3HUP SHUPDQHQW7HPS WHPSRUDU\ 9ROXPH3XUJHG [SXUJHYROXPHV  / D /DVWXSGDWHG +J LQFKHVRIPHUFXU\SSP SDUWVSHUPLOOLRQ 1RWHVBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB 6DPSOH,'7\SH 9DSRU0RQLWRULQJ3RLQW&RQVWUXFWLRQ +HOLXP/HDN7HVW EŽƚĞ͗>ĞĂŬdĞƐƚZĞƋƵŝƌĞŵĞŶƚƐ WĞƌEYtDsĂƉŽƌ/ŶƚƌƵƐŝŽŶ'ƵŝĚĂŶĐĞ͕ůĞĂŬƚĞƐƚƉĂƐƐĞƐŝĨŚĞůŝƵŵ ĐŽŶĐĞŶƚƌĂƚŝŽŶŝŶƉƵƌŐĞĂŝƌŝƐůĞƐƐƚŚĂŶϭϬйŽĨŚĞůŝƵŵĐŽŶĐĞŶƚƌĂƚŝŽŶŝŶ ƐŚƌŽƵĚ͘ / OHQJWKRIWXELQJSLSH IW D IRUGLDPHWHU /IW D IRUGLDPHWHU /IW ^͗ͰDĂƐƚĞƌdĞŵƉůĂƚĞƐͰ&ŽƌŵƐͲϮϬϮϮ&ŽƌŵƐͰsĂƉŽƌ^ĂŵƉůŝŶŐ&ŽƌŵƐͺsϲ͘Ϯ͘ƉĚĨ ^ƵďͲ^ůĂďͬ^Žŝů'ĂƐ^ĂŵƉůŝŶŐsĂƉŽƌ/ŶƐƚĂůůĂƚŝŽŶ&ŝĞůĚ&Žƌŵ ,ĂƌƚΘ,ŝĐŬŵĂŶ͕W NVR.019 JAB 60s, Clear SSV-1012-B/Dup 5493/5947 SS Perm Conc 6 Gravel -Full 11/13/23 17:00 62 Syringe 5 15.6 0 Yes 16211 SSV-1012-D 11356 SS Perm Conc 6 Gravel -Full 11/13/23 17:23 60 Syringe 5 12.9 0 Yes 13112 &Žƌŵ^sͲϮ 6XE6ODE6RLO*DV9DSRU6DPSOLQJ)LHOG)RUP 3URMHFW1RBBBBBBBBBBBBBBBBBBB 6DPSOHUBBBBBBBBBBBBBBBBBBBBBB :HDWKHUBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB 'DWH 3URSRVHG 6DPSOLQJ 'XUDWLRQ 7LPH&DQLVWHU 3UHVVXUH 2XWGRRU 7HPSHUDWXUH 2XWGRRU +XPLGLW\ ,QGRRU 7HPSHUDWXUH ,QGRRU +XPLGLW\ PPGG\\ 0LQXWHV KU +J R)R) ^͗%HJLQQLQJ ͗0LGGOH Z͗(QG ^͗%HJLQQLQJ ͗0LGGOH Z͗(QG ^͗%HJLQQLQJ ͗0LGGOH Z͗(QG ^͗%HJLQQLQJ ͗0LGGOH Z͗(QG ^͗%HJLQQLQJ ͗0LGGOH Z͗(QG ^͗%HJLQQLQJ ͗0LGGOH Z͗(QG 6 VDPSOH,'& FDQLVWHU,'5 UHJXODWRU,'66 VXEVODE6* VRLOJDV3HUP SHUPDQHQW7HPS WHPSRUDU\/DVWXSGDWHG +J LQFKHVRIPHUFXU\ 1RWHVBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB ^ŝnjĞ͗ &ůŽǁZĂƚĞ͗ ^ŝnjĞ͗ &ůŽǁZĂƚĞ͗ 6DPSOH,' ^ŝnjĞ͗ &ůŽǁZĂƚĞ͗ ^ŝnjĞ͗ &ůŽǁZĂƚĞ͗ ^ŝnjĞ͗ &ůŽǁZĂƚĞ͗ ^ŝnjĞ͗ &ůŽǁZĂƚĞ͗ 6DPSOLQJ,QIRUPDWLRQ ,QGRRU3DUDPHWHUV2XWGRRU3DUDPHWHUV 6DPSOLQJ 3HULRG EŽƚĞ͗ WĞƌEYtDsĂƉŽƌ/ŶƚƌƵƐŝŽŶ'ƵŝĚĂŶĐĞ͕ ƐŚƵƚͲŝŶƚĞƐƚĂŶĚŚĞůŝƵŵůĞĂŬĐŚĞĐŬŵƵƐƚďĞ ƉĂƐƐĞĚďĞĨŽƌĞƐĂŵƉůŝŶŐ͘ ^͗ͰDĂƐƚĞƌdĞŵƉůĂƚĞƐͰ&ŽƌŵƐͲϮϬϮϮ&ŽƌŵƐͰsĂƉŽƌ^ĂŵƉůŝŶŐ&ŽƌŵƐͺsϲ͘Ϯ͘ƉĚĨ ^ƵďͲ^ůĂďͬ^Žŝů'ĂƐ^ĂŵƉůŝŶŐsĂƉŽƌ^ĂŵƉůŝŶŐ&ŝĞůĚ&Žƌŵ ,ĂƌƚΘ,ŝĐŬŵĂŶ͕W NVR.019 JAB 60s, Clear SSV-1012-B/Dup 1.4L5493/5947 11/13/23 10 210 ml/min 17:09 -18 62 43 - 16211 17:15 -5 17:04 -30 - SSV-1012-D 1.4L 17:24 -29 11356 11/13/23 10 17:39 -17 60 48 - - 105 ml/min13112 17:35 -5 Appendix C Laboratory Analytical Reports   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   11/21/2023 Hart & Hickman (Charlotte) Josh Billiot 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 23-318-0001 Client Project Description: NVR-019-004-D Dear Josh Billiot: Waypoint Analytical, LLC (Charlotte) received sample(s) on 11/14/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 22 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202437735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202499012State ProgramSouth Carolina 12/31/202399012State ProgramSouth Carolina Page 1 of 1 00016/23-318-0001 Page 2 of 22 Report Number: Sample Summary Table Client Project Description: 23-318-0001 NVR-019-004-D Lab No Client Sample ID Matrix Date Collected Date Received 11/13/2023 17:04Air 89088 SSV-1012-B 11/14/2023 09:55 11/13/2023Air 89089 SSV-1012-DUP 11/14/2023 09:55 11/13/2023 17:24Air 89090 SSV-1012-D 11/14/2023 09:55 Page 3 of 22 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-318-0001 Report Limit Project:NVR-019-004-D V 89088SSV-1012-B E3910011/18/2023 22:24TO-15 Acetone µg/m3 40.4 J90.9 11/18/2023 02:10TO-15 Isopropyl Alcohol µg/m3 2.78 7710 11/18/2023 22:24TO-15 Methyl Ethyl Ketone (MEK)µg/m3 44.8 E5160011/18/2023 22:24TO-15 Tetrahydrofuran µg/m3 21.4 111 11/18/2023 02:10TO-15 1,2,4-Trichlorobenzene µg/m3 4.18 J7.99 11/18/2023 02:10TO-15 m,p-Xylene µg/m3 4.34 J7.99 11/18/2023 02:10TO-15 Xylene (Total)µg/m3 3.14 V 89089SSV-1012-DUP E3840011/18/2023 23:01TO-15 Acetone µg/m3 40.4 J89.4 11/18/2023 02:47TO-15 Isopropyl Alcohol µg/m3 2.78 7270 11/18/2023 23:01TO-15 Methyl Ethyl Ketone (MEK)µg/m3 44.8 E5000011/18/2023 23:01TO-15 Tetrahydrofuran µg/m3 21.4 85.6 11/18/2023 02:47TO-15 1,2,4-Trichlorobenzene µg/m3 4.18 V 89090SSV-1012-D E3360011/18/2023 23:37TO-15 Acetone µg/m3 40.4 J6.04 11/18/2023 03:23TO-15 Carbon Disulfide µg/m3 1.22 J13.1 11/18/2023 03:23TO-15 Chloromethane µg/m3 1.34 101 11/18/2023 03:23TO-15 Isopropyl Alcohol µg/m3 2.78 1870 11/18/2023 03:23TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48 E11300011/18/2023 23:37TO-15 Tetrahydrofuran µg/m3 21.4 184 11/18/2023 03:23TO-15 Toluene µg/m3 1.80 J27.8 11/18/2023 03:23TO-15 1,2,4-Trichlorobenzene µg/m3 4.18 J7.82 11/18/2023 03:23TO-15 m,p-Xylene µg/m3 4.34 J7.82 11/18/2023 03:23TO-15 Xylene (Total)µg/m3 3.14 Page 4 of 22   Client: Hart & Hickman (Charlotte) CASE NARRATIVE Project: NVR-019-004-D Lab Report Number: 23-318-0001 Date: 11/20/2023 Volatile Organic Compounds in Air- GC/MS Method TO-15 Sample 89088 (SSV-1012-B) QC Batch No: V40387/V40380 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Sample 89089 (SSV-1012-DUP) QC Batch No: V40387/V40380 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Sample 89090 (SSV-1012-D) QC Batch No: V40387/V40380 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Page 5 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-318-0001 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Josh Billiot Charlotte Received : 11/14/2023 NVR-019-004-D Report Date : 11/21/2023 Sample ID : Lab No : Sampled:SSV-1012-B 89088 Matrix: 11/13/2023 17:04 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V40380 11/17/23 09:00 V40402 11/18/23 09:00 39100 E µg/m3 40.4 950Acetone 200 11/18/23 22:24 V40403ENM <1.46 µg/m3 1.46 31.9Benzene 20 11/18/23 02:10 V40387ENM <2.94 µg/m3 2.94 207Benzyl Chloride 20 11/18/23 02:10 V40387ENM <3.00 µg/m3 3.00 67.0Bromodichloromethane 20 11/18/23 02:10 V40387ENM <3.05 µg/m3 3.05 103Bromoform 20 11/18/23 02:10 V40387ENM <2.30 µg/m3 2.30 38.8Bromomethane 20 11/18/23 02:10 V40387ENM <6.53 µg/m3 6.53 22.11,3-Butadiene 20 11/18/23 02:10 V40387ENM <1.22 µg/m3 1.22 125Carbon Disulfide 20 11/18/23 02:10 V40387ENM <3.10 µg/m3 3.10 62.9Carbon Tetrachloride 20 11/18/23 02:10 V40387ENM <2.14 µg/m3 2.14 46.0Chlorobenzene 20 11/18/23 02:10 V40387ENM <4.16 µg/m3 4.16 85.2Chlorodibromomethane 20 11/18/23 02:10 V40387ENM <3.28 µg/m3 3.28 26.4Chloroethane 20 11/18/23 02:10 V40387ENM <1.73 µg/m3 1.73 48.8Chloroform 20 11/18/23 02:10 V40387ENM <1.34 µg/m3 1.34 20.6Chloromethane 20 11/18/23 02:10 V40387ENM <3.22 µg/m3 3.22 68.8Cyclohexane 20 11/18/23 02:10 V40387ENM <3.02 µg/m3 3.02 76.81,2-Dibromoethane 20 11/18/23 02:10 V40387ENM <1.92 µg/m3 1.92 60.11,2-Dichlorobenzene 20 11/18/23 02:10 V40387ENM <3.48 µg/m3 3.48 2411,3-Dichlorobenzene 20 11/18/23 02:10 V40387ENM <3.72 µg/m3 3.72 60.11,4-Dichlorobenzene 20 11/18/23 02:10 V40387ENM <2.68 µg/m3 2.68 49.4Dichlorodifluoromethane 20 11/18/23 02:10 V40387ENM <2.02 µg/m3 2.02 40.51,1-Dichloroethane 20 11/18/23 02:10 V40387ENM <2.58 µg/m3 2.58 40.51,2-Dichloroethane 20 11/18/23 02:10 V40387ENM Qualifiers/ Definitions Result above calibration rangeEDilution FactorDF Method Quantitation LimitMQLEstimated valueJ Page 6 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-318-0001 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Josh Billiot Charlotte Received : 11/14/2023 NVR-019-004-D Report Date : 11/21/2023 Sample ID : Lab No : Sampled:SSV-1012-B 89088 Matrix: 11/13/2023 17:04 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V40380 11/17/23 09:00 V40402 11/18/23 09:00 <2.14 µg/m3 2.14 39.61,1-Dichloroethene 20 11/18/23 02:10 V40387ENM <1.91 µg/m3 1.91 39.6cis-1,2-Dichloroethene 20 11/18/23 02:10 V40387ENM <2.16 µg/m3 2.16 39.6trans-1,2-Dichloroethene 20 11/18/23 02:10 V40387ENM <4.10 µg/m3 4.10 46.21,2-Dichloropropane 20 11/18/23 02:10 V40387ENM <12.4 µg/m3 12.4 69.91,2-Dichlorotetrafluoroethane 20 11/18/23 02:10 V40387ENM <3.56 µg/m3 3.56 45.4cis-1,3-Dichloropropene 20 11/18/23 02:10 V40387ENM <3.56 µg/m3 3.56 45.4trans-1,3-Dichloropropene 20 11/18/23 02:10 V40387ENM <8.69 µg/m3 8.69 36.01,4-Dioxane 20 11/18/23 02:10 V40387ENM <2.72 µg/m3 2.72 36.0Ethyl Acetate 20 11/18/23 02:10 V40387ENM <2.12 µg/m3 2.12 43.4Ethylbenzene 20 11/18/23 02:10 V40387ENM <2.56 µg/m3 2.56 49.24-Ethyltoluene 20 11/18/23 02:10 V40387ENM <11.2 µg/m3 11.2 76.61,1,2-Trichloro-1,2,2-trifluoroethane 20 11/18/23 02:10 V40387ENM <2.86 µg/m3 2.86 41.0Heptane 20 11/18/23 02:10 V40387ENM <6.62 µg/m3 6.62 107Hexachlorobutadiene 20 11/18/23 02:10 V40387ENM <0.942 µg/m3 0.942 35.2n-Hexane 20 11/18/23 02:10 V40387ENM <5.71 µg/m3 5.71 41.02-Hexanone 20 11/18/23 02:10 V40387ENM 90.9 J µg/m3 2.78 98.3Isopropyl Alcohol 20 11/18/23 02:10 V40387ENM 7710 µg/m3 44.8 295Methyl Ethyl Ketone (MEK)200 11/18/23 22:24 V40403ENM <0.672 µg/m3 0.672 36.1Methyl tert-butyl ether (MTBE)20 11/18/23 02:10 V40387ENM <2.42 µg/m3 2.42 41.04-Methyl-2-Pentanone 20 11/18/23 02:10 V40387ENM <9.75 µg/m3 9.75 34.7Methylene Chloride 20 11/18/23 02:10 V40387ENM <3.66 µg/m3 3.66 52.4Naphthalene 20 11/18/23 02:10 V40387ENM Qualifiers/ Definitions Result above calibration rangeEDilution FactorDF Method Quantitation LimitMQLEstimated valueJ Page 7 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-318-0001 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Josh Billiot Charlotte Received : 11/14/2023 NVR-019-004-D Report Date : 11/21/2023 Sample ID : Lab No : Sampled:SSV-1012-B 89088 Matrix: 11/13/2023 17:04 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V40380 11/17/23 09:00 V40402 11/18/23 09:00 <4.84 µg/m3 4.84 17.2Propene 20 11/18/23 02:10 V40387ENM <2.48 µg/m3 2.48 42.6Styrene 20 11/18/23 02:10 V40387ENM <2.08 µg/m3 2.08 68.61,1,2,2-Tetrachloroethane 20 11/18/23 02:10 V40387ENM <3.62 µg/m3 3.62 67.8Tetrachloroethene 20 11/18/23 02:10 V40387ENM 51600 E µg/m3 21.4 295Tetrahydrofuran 200 11/18/23 22:24 V40403ENM <1.80 µg/m3 1.80 37.7Toluene 20 11/18/23 02:10 V40387ENM 111 µg/m3 4.18 74.21,2,4-Trichlorobenzene 20 11/18/23 02:10 V40387ENM <2.88 µg/m3 2.88 54.61,1,1-Trichloroethane 20 11/18/23 02:10 V40387ENM <1.75 µg/m3 1.75 54.61,1,2-Trichloroethane 20 11/18/23 02:10 V40387ENM <3.98 µg/m3 3.98 43.0Trichloroethene 20 11/18/23 02:10 V40387ENM <2.60 µg/m3 2.60 56.2Trichlorofluoromethane 20 11/18/23 02:10 V40387ENM <2.20 µg/m3 2.20 49.21,2,4-Trimethylbenzene 20 11/18/23 02:10 V40387ENM <4.72 µg/m3 4.72 49.21,3,5-Trimethylbenzene 20 11/18/23 02:10 V40387ENM <4.48 µg/m3 4.48 35.2Vinyl Acetate 20 11/18/23 02:10 V40387ENM <2.54 µg/m3 2.54 25.6Vinyl Chloride 20 11/18/23 02:10 V40387ENM <3.14 µg/m3 3.14 43.4o-Xylene 20 11/18/23 02:10 V40387ENM 7.99 J µg/m3 4.34 113m,p-Xylene 20 11/18/23 02:10 V40387ENM 7.99 J µg/m3 3.14 43.4Xylene (Total)20 11/18/23 02:10 V40387 Surrogate: 4-Bromofluorobenzene 125 Limits: 70-130%11/18/23 02:1020 ENM V40387 Surrogate: 4-Bromofluorobenzene 97.8 Limits: 70-130%11/18/23 22:24200 ENM V40403 Qualifiers/ Definitions Result above calibration rangeEDilution FactorDF Method Quantitation LimitMQLEstimated valueJ Page 8 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-318-0001 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Josh Billiot Charlotte Received : 11/14/2023 NVR-019-004-D Report Date : 11/21/2023 Sample ID : Lab No : Sampled:SSV-1012-DUP 89089 Matrix: 11/13/2023 0:00 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V40380 11/17/23 09:00 V40402 11/18/23 09:00 38400 E µg/m3 40.4 950Acetone 200 11/18/23 23:01 V40403ENM <1.46 µg/m3 1.46 31.9Benzene 20 11/18/23 02:47 V40387ENM <2.94 µg/m3 2.94 207Benzyl Chloride 20 11/18/23 02:47 V40387ENM <3.00 µg/m3 3.00 67.0Bromodichloromethane 20 11/18/23 02:47 V40387ENM <3.05 µg/m3 3.05 103Bromoform 20 11/18/23 02:47 V40387ENM <2.30 µg/m3 2.30 38.8Bromomethane 20 11/18/23 02:47 V40387ENM <6.53 µg/m3 6.53 22.11,3-Butadiene 20 11/18/23 02:47 V40387ENM <1.22 µg/m3 1.22 125Carbon Disulfide 20 11/18/23 02:47 V40387ENM <3.10 µg/m3 3.10 62.9Carbon Tetrachloride 20 11/18/23 02:47 V40387ENM <2.14 µg/m3 2.14 46.0Chlorobenzene 20 11/18/23 02:47 V40387ENM <4.16 µg/m3 4.16 85.2Chlorodibromomethane 20 11/18/23 02:47 V40387ENM <3.28 µg/m3 3.28 26.4Chloroethane 20 11/18/23 02:47 V40387ENM <1.73 µg/m3 1.73 48.8Chloroform 20 11/18/23 02:47 V40387ENM <1.34 µg/m3 1.34 20.6Chloromethane 20 11/18/23 02:47 V40387ENM <3.22 µg/m3 3.22 68.8Cyclohexane 20 11/18/23 02:47 V40387ENM <3.02 µg/m3 3.02 76.81,2-Dibromoethane 20 11/18/23 02:47 V40387ENM <1.92 µg/m3 1.92 60.11,2-Dichlorobenzene 20 11/18/23 02:47 V40387ENM <3.48 µg/m3 3.48 2411,3-Dichlorobenzene 20 11/18/23 02:47 V40387ENM <3.72 µg/m3 3.72 60.11,4-Dichlorobenzene 20 11/18/23 02:47 V40387ENM <2.68 µg/m3 2.68 49.4Dichlorodifluoromethane 20 11/18/23 02:47 V40387ENM <2.02 µg/m3 2.02 40.51,1-Dichloroethane 20 11/18/23 02:47 V40387ENM <2.58 µg/m3 2.58 40.51,2-Dichloroethane 20 11/18/23 02:47 V40387ENM Qualifiers/ Definitions Result above calibration rangeEDilution FactorDF Method Quantitation LimitMQLEstimated valueJ Page 9 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-318-0001 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Josh Billiot Charlotte Received : 11/14/2023 NVR-019-004-D Report Date : 11/21/2023 Sample ID : Lab No : Sampled:SSV-1012-DUP 89089 Matrix: 11/13/2023 0:00 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V40380 11/17/23 09:00 V40402 11/18/23 09:00 <2.14 µg/m3 2.14 39.61,1-Dichloroethene 20 11/18/23 02:47 V40387ENM <1.91 µg/m3 1.91 39.6cis-1,2-Dichloroethene 20 11/18/23 02:47 V40387ENM <2.16 µg/m3 2.16 39.6trans-1,2-Dichloroethene 20 11/18/23 02:47 V40387ENM <4.10 µg/m3 4.10 46.21,2-Dichloropropane 20 11/18/23 02:47 V40387ENM <12.4 µg/m3 12.4 69.91,2-Dichlorotetrafluoroethane 20 11/18/23 02:47 V40387ENM <3.56 µg/m3 3.56 45.4cis-1,3-Dichloropropene 20 11/18/23 02:47 V40387ENM <3.56 µg/m3 3.56 45.4trans-1,3-Dichloropropene 20 11/18/23 02:47 V40387ENM <8.69 µg/m3 8.69 36.01,4-Dioxane 20 11/18/23 02:47 V40387ENM <2.72 µg/m3 2.72 36.0Ethyl Acetate 20 11/18/23 02:47 V40387ENM <2.12 µg/m3 2.12 43.4Ethylbenzene 20 11/18/23 02:47 V40387ENM <2.56 µg/m3 2.56 49.24-Ethyltoluene 20 11/18/23 02:47 V40387ENM <11.2 µg/m3 11.2 76.61,1,2-Trichloro-1,2,2-trifluoroethane 20 11/18/23 02:47 V40387ENM <2.86 µg/m3 2.86 41.0Heptane 20 11/18/23 02:47 V40387ENM <6.62 µg/m3 6.62 107Hexachlorobutadiene 20 11/18/23 02:47 V40387ENM <0.942 µg/m3 0.942 35.2n-Hexane 20 11/18/23 02:47 V40387ENM <5.71 µg/m3 5.71 41.02-Hexanone 20 11/18/23 02:47 V40387ENM 89.4 J µg/m3 2.78 98.3Isopropyl Alcohol 20 11/18/23 02:47 V40387ENM 7270 µg/m3 44.8 295Methyl Ethyl Ketone (MEK)200 11/18/23 23:01 V40403ENM <0.672 µg/m3 0.672 36.1Methyl tert-butyl ether (MTBE)20 11/18/23 02:47 V40387ENM <2.42 µg/m3 2.42 41.04-Methyl-2-Pentanone 20 11/18/23 02:47 V40387ENM <9.75 µg/m3 9.75 34.7Methylene Chloride 20 11/18/23 02:47 V40387ENM <3.66 µg/m3 3.66 52.4Naphthalene 20 11/18/23 02:47 V40387ENM Qualifiers/ Definitions Result above calibration rangeEDilution FactorDF Method Quantitation LimitMQLEstimated valueJ Page 10 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-318-0001 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Josh Billiot Charlotte Received : 11/14/2023 NVR-019-004-D Report Date : 11/21/2023 Sample ID : Lab No : Sampled:SSV-1012-DUP 89089 Matrix: 11/13/2023 0:00 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V40380 11/17/23 09:00 V40402 11/18/23 09:00 <4.84 µg/m3 4.84 17.2Propene 20 11/18/23 02:47 V40387ENM <2.48 µg/m3 2.48 42.6Styrene 20 11/18/23 02:47 V40387ENM <2.08 µg/m3 2.08 68.61,1,2,2-Tetrachloroethane 20 11/18/23 02:47 V40387ENM <3.62 µg/m3 3.62 67.8Tetrachloroethene 20 11/18/23 02:47 V40387ENM 50000 E µg/m3 21.4 295Tetrahydrofuran 200 11/18/23 23:01 V40403ENM <1.80 µg/m3 1.80 37.7Toluene 20 11/18/23 02:47 V40387ENM 85.6 µg/m3 4.18 74.21,2,4-Trichlorobenzene 20 11/18/23 02:47 V40387ENM <2.88 µg/m3 2.88 54.61,1,1-Trichloroethane 20 11/18/23 02:47 V40387ENM <1.75 µg/m3 1.75 54.61,1,2-Trichloroethane 20 11/18/23 02:47 V40387ENM <3.98 µg/m3 3.98 43.0Trichloroethene 20 11/18/23 02:47 V40387ENM <2.60 µg/m3 2.60 56.2Trichlorofluoromethane 20 11/18/23 02:47 V40387ENM <2.20 µg/m3 2.20 49.21,2,4-Trimethylbenzene 20 11/18/23 02:47 V40387ENM <4.72 µg/m3 4.72 49.21,3,5-Trimethylbenzene 20 11/18/23 02:47 V40387ENM <4.48 µg/m3 4.48 35.2Vinyl Acetate 20 11/18/23 02:47 V40387ENM <2.54 µg/m3 2.54 25.6Vinyl Chloride 20 11/18/23 02:47 V40387ENM <3.14 µg/m3 3.14 43.4o-Xylene 20 11/18/23 02:47 V40387ENM <4.34 µg/m3 4.34 113m,p-Xylene 20 11/18/23 02:47 V40387ENM <3.14 µg/m3 3.14 43.4Xylene (Total)20 11/18/23 02:47 V40387 Surrogate: 4-Bromofluorobenzene 92.5 Limits: 70-130%11/18/23 02:4720 ENM V40387 Surrogate: 4-Bromofluorobenzene 98.6 Limits: 70-130%11/18/23 23:01200 ENM V40403 Qualifiers/ Definitions Result above calibration rangeEDilution FactorDF Method Quantitation LimitMQLEstimated valueJ Page 11 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-318-0001 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Josh Billiot Charlotte Received : 11/14/2023 NVR-019-004-D Report Date : 11/21/2023 Sample ID : Lab No : Sampled:SSV-1012-D 89090 Matrix: 11/13/2023 17:24 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V40380 11/17/23 09:00 V40402 11/18/23 09:00 33600 E µg/m3 40.4 950Acetone 200 11/18/23 23:37 V40403ENM <1.46 µg/m3 1.46 31.9Benzene 20 11/18/23 03:23 V40387ENM <2.94 µg/m3 2.94 207Benzyl Chloride 20 11/18/23 03:23 V40387ENM <3.00 µg/m3 3.00 67.0Bromodichloromethane 20 11/18/23 03:23 V40387ENM <3.05 µg/m3 3.05 103Bromoform 20 11/18/23 03:23 V40387ENM <2.30 µg/m3 2.30 38.8Bromomethane 20 11/18/23 03:23 V40387ENM <6.53 µg/m3 6.53 22.11,3-Butadiene 20 11/18/23 03:23 V40387ENM 6.04 J µg/m3 1.22 125Carbon Disulfide 20 11/18/23 03:23 V40387ENM <3.10 µg/m3 3.10 62.9Carbon Tetrachloride 20 11/18/23 03:23 V40387ENM <2.14 µg/m3 2.14 46.0Chlorobenzene 20 11/18/23 03:23 V40387ENM <4.16 µg/m3 4.16 85.2Chlorodibromomethane 20 11/18/23 03:23 V40387ENM <3.28 µg/m3 3.28 26.4Chloroethane 20 11/18/23 03:23 V40387ENM <1.73 µg/m3 1.73 48.8Chloroform 20 11/18/23 03:23 V40387ENM 13.1 J µg/m3 1.34 20.6Chloromethane 20 11/18/23 03:23 V40387ENM <3.22 µg/m3 3.22 68.8Cyclohexane 20 11/18/23 03:23 V40387ENM <3.02 µg/m3 3.02 76.81,2-Dibromoethane 20 11/18/23 03:23 V40387ENM <1.92 µg/m3 1.92 60.11,2-Dichlorobenzene 20 11/18/23 03:23 V40387ENM <3.48 µg/m3 3.48 2411,3-Dichlorobenzene 20 11/18/23 03:23 V40387ENM <3.72 µg/m3 3.72 60.11,4-Dichlorobenzene 20 11/18/23 03:23 V40387ENM <2.68 µg/m3 2.68 49.4Dichlorodifluoromethane 20 11/18/23 03:23 V40387ENM <2.02 µg/m3 2.02 40.51,1-Dichloroethane 20 11/18/23 03:23 V40387ENM <2.58 µg/m3 2.58 40.51,2-Dichloroethane 20 11/18/23 03:23 V40387ENM Qualifiers/ Definitions Result above calibration rangeEDilution FactorDF Method Quantitation LimitMQLEstimated valueJ Page 12 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-318-0001 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Josh Billiot Charlotte Received : 11/14/2023 NVR-019-004-D Report Date : 11/21/2023 Sample ID : Lab No : Sampled:SSV-1012-D 89090 Matrix: 11/13/2023 17:24 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V40380 11/17/23 09:00 V40402 11/18/23 09:00 <2.14 µg/m3 2.14 39.61,1-Dichloroethene 20 11/18/23 03:23 V40387ENM <1.91 µg/m3 1.91 39.6cis-1,2-Dichloroethene 20 11/18/23 03:23 V40387ENM <2.16 µg/m3 2.16 39.6trans-1,2-Dichloroethene 20 11/18/23 03:23 V40387ENM <4.10 µg/m3 4.10 46.21,2-Dichloropropane 20 11/18/23 03:23 V40387ENM <12.4 µg/m3 12.4 69.91,2-Dichlorotetrafluoroethane 20 11/18/23 03:23 V40387ENM <3.56 µg/m3 3.56 45.4cis-1,3-Dichloropropene 20 11/18/23 03:23 V40387ENM <3.56 µg/m3 3.56 45.4trans-1,3-Dichloropropene 20 11/18/23 03:23 V40387ENM <8.69 µg/m3 8.69 36.01,4-Dioxane 20 11/18/23 03:23 V40387ENM <2.72 µg/m3 2.72 36.0Ethyl Acetate 20 11/18/23 03:23 V40387ENM <2.12 µg/m3 2.12 43.4Ethylbenzene 20 11/18/23 03:23 V40387ENM <2.56 µg/m3 2.56 49.24-Ethyltoluene 20 11/18/23 03:23 V40387ENM <11.2 µg/m3 11.2 76.61,1,2-Trichloro-1,2,2-trifluoroethane 20 11/18/23 03:23 V40387ENM <2.86 µg/m3 2.86 41.0Heptane 20 11/18/23 03:23 V40387ENM <6.62 µg/m3 6.62 107Hexachlorobutadiene 20 11/18/23 03:23 V40387ENM <0.942 µg/m3 0.942 35.2n-Hexane 20 11/18/23 03:23 V40387ENM <5.71 µg/m3 5.71 41.02-Hexanone 20 11/18/23 03:23 V40387ENM 101 µg/m3 2.78 98.3Isopropyl Alcohol 20 11/18/23 03:23 V40387ENM 1870 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 11/18/23 03:23 V40387ENM <0.672 µg/m3 0.672 36.1Methyl tert-butyl ether (MTBE)20 11/18/23 03:23 V40387ENM <2.42 µg/m3 2.42 41.04-Methyl-2-Pentanone 20 11/18/23 03:23 V40387ENM <9.75 µg/m3 9.75 34.7Methylene Chloride 20 11/18/23 03:23 V40387ENM <3.66 µg/m3 3.66 52.4Naphthalene 20 11/18/23 03:23 V40387ENM Qualifiers/ Definitions Result above calibration rangeEDilution FactorDF Method Quantitation LimitMQLEstimated valueJ Page 13 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-318-0001 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Josh Billiot Charlotte Received : 11/14/2023 NVR-019-004-D Report Date : 11/21/2023 Sample ID : Lab No : Sampled:SSV-1012-D 89090 Matrix: 11/13/2023 17:24 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V40380 11/17/23 09:00 V40402 11/18/23 09:00 <4.84 µg/m3 4.84 17.2Propene 20 11/18/23 03:23 V40387ENM <2.48 µg/m3 2.48 42.6Styrene 20 11/18/23 03:23 V40387ENM <2.08 µg/m3 2.08 68.61,1,2,2-Tetrachloroethane 20 11/18/23 03:23 V40387ENM <3.62 µg/m3 3.62 67.8Tetrachloroethene 20 11/18/23 03:23 V40387ENM 113000 E µg/m3 21.4 295Tetrahydrofuran 200 11/18/23 23:37 V40403ENM 184 µg/m3 1.80 37.7Toluene 20 11/18/23 03:23 V40387ENM 27.8 J µg/m3 4.18 74.21,2,4-Trichlorobenzene 20 11/18/23 03:23 V40387ENM <2.88 µg/m3 2.88 54.61,1,1-Trichloroethane 20 11/18/23 03:23 V40387ENM <1.75 µg/m3 1.75 54.61,1,2-Trichloroethane 20 11/18/23 03:23 V40387ENM <3.98 µg/m3 3.98 43.0Trichloroethene 20 11/18/23 03:23 V40387ENM <2.60 µg/m3 2.60 56.2Trichlorofluoromethane 20 11/18/23 03:23 V40387ENM <2.20 µg/m3 2.20 49.21,2,4-Trimethylbenzene 20 11/18/23 03:23 V40387ENM <4.72 µg/m3 4.72 49.21,3,5-Trimethylbenzene 20 11/18/23 03:23 V40387ENM <4.48 µg/m3 4.48 35.2Vinyl Acetate 20 11/18/23 03:23 V40387ENM <2.54 µg/m3 2.54 25.6Vinyl Chloride 20 11/18/23 03:23 V40387ENM <3.14 µg/m3 3.14 43.4o-Xylene 20 11/18/23 03:23 V40387ENM 7.82 J µg/m3 4.34 113m,p-Xylene 20 11/18/23 03:23 V40387ENM 7.82 J µg/m3 3.14 43.4Xylene (Total)20 11/18/23 03:23 V40387 Surrogate: 4-Bromofluorobenzene 87.4 Limits: 70-130%11/18/23 03:2320 ENM V40387 Surrogate: 4-Bromofluorobenzene 114 Limits: 70-130%11/18/23 23:37200 ENM V40403 Qualifiers/ Definitions Result above calibration rangeEDilution FactorDF Method Quantitation LimitMQLEstimated valueJ Page 14 of 22 Quality Control Data 23-318-0001Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V40387QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V40380 Associated Lab Samples: 89088, 89089, 89090 LRB-V40380 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 11/17/23 10:201.600.073<0.073µg/m3Benzene 11/17/23 10:2010.40.147<0.147µg/m3Benzyl Chloride 11/17/23 10:203.350.150<0.150µg/m3Bromodichloromethane 11/17/23 10:205.170.153<0.153µg/m3Bromoform 11/17/23 10:201.940.115<0.115µg/m3Bromomethane 11/17/23 10:201.110.328<0.328µg/m31,3-Butadiene 11/17/23 10:206.230.060<0.060µg/m3Carbon Disulfide 11/17/23 10:203.150.155<0.155µg/m3Carbon Tetrachloride 11/17/23 10:202.300.107<0.107µg/m3Chlorobenzene 11/17/23 10:204.260.208<0.208µg/m3Chlorodibromomethane 11/17/23 10:201.320.164<0.164µg/m3Chloroethane 11/17/23 10:202.440.086<0.086µg/m3Chloroform 11/17/23 10:201.030.067<0.067µg/m3Chloromethane 11/17/23 10:203.440.161<0.161µg/m3Cyclohexane 11/17/23 10:203.840.151<0.151µg/m31,2-Dibromoethane 11/17/23 10:203.010.096<0.096µg/m31,2-Dichlorobenzene 11/17/23 10:2012.00.174<0.174µg/m31,3-Dichlorobenzene 11/17/23 10:203.010.186<0.186µg/m31,4-Dichlorobenzene 11/17/23 10:202.470.134<0.134µg/m3Dichlorodifluoromethane 11/17/23 10:202.020.101<0.101µg/m31,1-Dichloroethane 11/17/23 10:202.020.129<0.129µg/m31,2-Dichloroethane 11/17/23 10:201.980.107<0.107µg/m31,1-Dichloroethene 11/17/23 10:201.980.095<0.095µg/m3cis-1,2-Dichloroethene 11/17/23 10:201.980.108<0.108µg/m3trans-1,2-Dichloroethene 11/17/23 10:202.310.205<0.205µg/m31,2-Dichloropropane 11/17/23 10:203.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane 11/17/23 10:202.270.178<0.178µg/m3cis-1,3-Dichloropropene Page 1 of 6Date:11/21/2023 04:03 PM Page 15 of 22 Quality Control Data 23-318-0001Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V40387QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V40380 Associated Lab Samples: 89088, 89089, 89090 LRB-V40380 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 11/17/23 10:202.270.178<0.178µg/m3trans-1,3-Dichloropropene 11/17/23 10:201.800.435<0.435µg/m31,4-Dioxane 11/17/23 10:201.800.136<0.136µg/m3Ethyl Acetate 11/17/23 10:202.170.106<0.106µg/m3Ethylbenzene 11/17/23 10:202.460.128<0.128µg/m34-Ethyltoluene 11/17/23 10:203.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 11/17/23 10:202.050.143<0.143µg/m3Heptane 11/17/23 10:205.330.330<0.330µg/m3Hexachlorobutadiene 11/17/23 10:201.760.047<0.047µg/m3n-Hexane 11/17/23 10:202.050.285<0.285µg/m32-Hexanone 11/17/23 10:204.920.1392.29µg/m3Isopropyl Alcohol 11/17/23 10:201.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK) 11/17/23 10:201.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE) 11/17/23 10:202.050.121<0.121µg/m34-Methyl-2-Pentanone 11/17/23 10:201.740.488<0.488µg/m3Methylene Chloride 11/17/23 10:202.620.183<0.183µg/m3Naphthalene 11/17/23 10:200.8600.242<0.242µg/m3Propene 11/17/23 10:202.130.124<0.124µg/m3Styrene 11/17/23 10:203.430.104<0.104µg/m31,1,2,2-Tetrachloroethane 11/17/23 10:203.390.181<0.181µg/m3Tetrachloroethene 11/17/23 10:201.880.090<0.090µg/m3Toluene 11/17/23 10:203.710.209<0.209µg/m31,2,4-Trichlorobenzene 11/17/23 10:202.730.144<0.144µg/m31,1,1-Trichloroethane 11/17/23 10:202.730.087<0.087µg/m31,1,2-Trichloroethane 11/17/23 10:202.150.199<0.199µg/m3Trichloroethene 11/17/23 10:202.810.130<0.130µg/m3Trichlorofluoromethane 11/17/23 10:202.460.110<0.110µg/m31,2,4-Trimethylbenzene Page 2 of 6Date:11/21/2023 04:03 PM Page 16 of 22 Quality Control Data 23-318-0001Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V40387QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V40380 Associated Lab Samples: 89088, 89089, 89090 LRB-V40380 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 11/17/23 10:202.460.236<0.236µg/m31,3,5-Trimethylbenzene 11/17/23 10:201.760.224<0.224µg/m3Vinyl Acetate 11/17/23 10:201.280.127<0.127µg/m3Vinyl Chloride 11/17/23 10:202.170.157<0.157µg/m3o-Xylene 11/17/23 10:205.650.217<0.217µg/m3m,p-Xylene 11/17/23 10:204-Bromofluorobenzene (S)95.5 70-130 LCS-V40380Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10116.116.0µg/m3Benzene 70-130 11329.225.9µg/m3Benzyl Chloride 70-130 99.433.333.5µg/m3Bromodichloromethane 70-130 99.251.351.7µg/m3Bromoform 70-130 10821.019.4µg/m3Bromomethane 70-130 10311.411.1µg/m31,3-Butadiene 70-130 11217.515.6µg/m3Carbon Disulfide 70-130 98.431.031.5µg/m3Carbon Tetrachloride 70-130 10123.223.0µg/m3Chlorobenzene 70-130 10142.942.6µg/m3Chlorodibromomethane 70-130 10614.013.2µg/m3Chloroethane 70-130 10225.024.4µg/m3Chloroform 70-130 10811.110.3µg/m3Chloromethane 70-130 10117.317.2µg/m3Cyclohexane 70-130 10239.238.4µg/m31,2-Dibromoethane 70-130 10932.930.1µg/m31,2-Dichlorobenzene 70-130 11033.130.1µg/m31,3-Dichlorobenzene 70-130 Page 3 of 6Date:11/21/2023 04:03 PM Page 17 of 22 Quality Control Data 23-318-0001Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V40387QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V40380 LCS-V40380Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 11133.330.1µg/m31,4-Dichlorobenzene 70-130 10726.424.7µg/m3Dichlorodifluoromethane 70-130 10922.020.2µg/m31,1-Dichloroethane 70-130 10120.520.2µg/m31,2-Dichloroethane 70-130 11021.719.8µg/m31,1-Dichloroethene 70-130 10921.619.8µg/m3cis-1,2-Dichloroethene 70-130 10821.419.8µg/m3trans-1,2-Dichloroethene 70-130 99.523.023.1µg/m31,2-Dichloropropane 70-130 10938.035.0µg/m31,2-Dichlorotetrafluoroethane 70-130 10123.022.7µg/m3cis-1,3-Dichloropropene 70-130 10022.822.7µg/m3trans-1,3-Dichloropropene 70-130 95.017.118.0µg/m31,4-Dioxane 70-130 10118.218.0µg/m3Ethyl Acetate 70-130 93.020.221.7µg/m3Ethylbenzene 70-130 10525.924.6µg/m34-Ethyltoluene 70-130 10841.238.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130 97.520.020.5µg/m3Heptane 70-130 90.948.553.3µg/m3Hexachlorobutadiene 70-130 10418.317.6µg/m3n-Hexane 70-130 96.519.820.5µg/m32-Hexanone 70-130 10312.712.3µg/m3Isopropyl Alcohol 70-130 10014.814.8µg/m3Methyl Ethyl Ketone (MEK)70-130 10719.218.0µg/m3Methyl tert-butyl ether (MTBE)70-130 94.619.420.5µg/m34-Methyl-2-Pentanone 70-130 10618.417.4µg/m3Methylene Chloride 70-130 11129.126.2µg/m3Naphthalene 70-130 99.18.548.61µg/m3Propene 70-130 Page 4 of 6Date:11/21/2023 04:03 PM Page 18 of 22 Quality Control Data 23-318-0001Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V40387QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V40380 LCS-V40380Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10422.121.3µg/m3Styrene 70-130 10536.134.3µg/m31,1,2,2-Tetrachloroethane 70-130 97.633.133.9µg/m3Tetrachloroethene 70-130 98.418.518.8µg/m3Toluene 70-130 10739.837.1µg/m31,2,4-Trichlorobenzene 70-130 99.227.127.3µg/m31,1,1-Trichloroethane 70-130 10328.227.3µg/m31,1,2-Trichloroethane 70-130 97.026.126.9µg/m3Trichloroethene 70-130 10830.328.1µg/m3Trichlorofluoromethane 70-130 10926.824.6µg/m31,2,4-Trimethylbenzene 70-130 10726.424.6µg/m31,3,5-Trimethylbenzene 70-130 10919.117.6µg/m3Vinyl Acetate 70-130 10613.612.8µg/m3Vinyl Chloride 70-130 10322.321.7µg/m3o-Xylene 70-130 10244.143.4µg/m3m,p-Xylene 70-130 1014-Bromofluorobenzene (S)70-130 Page 5 of 6Date:11/21/2023 04:03 PM Page 19 of 22 Quality Control Data 23-318-0001Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V40403QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V40402 Associated Lab Samples: 89088, 89089, 89090 LRB-V40402 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 11/18/23 14:484.750.202<0.202µg/m3Acetone 11/18/23 14:481.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK) 11/18/23 14:481.470.107<0.107µg/m3Tetrahydrofuran 11/18/23 14:484-Bromofluorobenzene (S)96.0 70-130 LCS-V40402Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10812.811.9µg/m3Acetone 70-130 10315.214.8µg/m3Methyl Ethyl Ketone (MEK)70-130 10114.914.7µg/m3Tetrahydrofuran 70-130 1014-Bromofluorobenzene (S)70-130 Page 6 of 6Date:11/21/2023 04:03 PM Page 20 of 22 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-318-0001 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:N/A Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:11/14/2023 09:58:23 Special precautions or instructions included? Comments: Page 21 of 22 Page 22 of 22   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   5/14/2024 Hart & Hickman (Charlotte) Trinh Desa 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 24-121-0011 Client Project Description: NVR-019-004-D Dear Trinh Desa: Waypoint Analytical, LLC (Charlotte) received sample(s) on 4/30/2024 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 23 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202437735State ProgramNorth Carolina 12/31/2024402State ProgramNorth Carolina 07/31/202499012State ProgramSouth Carolina 12/31/202499012State ProgramSouth Carolina Page 1 of 1 00016/24-121-0011 Page 2 of 23 Report Number: Sample Summary Table Client Project Description: 24-121-0011 NVR-019-004-D Lab No Client Sample ID Matrix Date Collected Date Received 04/30/2024 13:20Air 92297 SS-1012-B 04/30/2024 14:24 04/30/2024Air 92298 SS-1012-DUP 04/30/2024 14:24 04/30/2024 13:48Air 92299 SS-1012-D 04/30/2024 14:24 Page 3 of 23 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 24-121-0011 Report Limit Project:NVR-019-004-D V 92297SS-1012-B 627 05/10/2024 22:31TO-15 Acetone µg/m3 4.04 J0.277 05/11/2024 20:59TO-15 Benzene µg/m3 0.073 JB0.249 05/11/2024 20:59TO-15 Carbon Disulfide µg/m3 0.060 J1.24 05/11/2024 20:59TO-15 Chloroform µg/m3 0.086 J1.91 05/11/2024 20:59TO-15 Cyclohexane µg/m3 0.161 J2.35 05/11/2024 20:59TO-15 Dichlorodifluoromethane µg/m3 0.134 J0.395 05/11/2024 20:59TO-15 Ethylbenzene µg/m3 0.106 JB1.77 05/11/2024 20:59TO-15 Isopropyl Alcohol µg/m3 0.139 176 05/10/2024 22:31TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48 J1.04 05/11/2024 20:59TO-15 Tetrachloroethene µg/m3 0.181 1230 05/10/2024 22:31TO-15 Tetrahydrofuran µg/m3 2.14 2.49 05/11/2024 20:59TO-15 Toluene µg/m3 0.090 J1.75 05/11/2024 20:59TO-15 Trichlorofluoromethane µg/m3 0.130 J1.04 05/11/2024 20:59TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.403 05/11/2024 20:59TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 J0.981 05/11/2024 20:59TO-15 o-Xylene µg/m3 0.157 J1.77 05/11/2024 20:59TO-15 m,p-Xylene µg/m3 0.217 J2.75 05/11/2024 20:59TO-15 Xylene (Total)µg/m3 0.157 V 92298SS-1012-DUP 626 05/10/2024 23:08TO-15 Acetone µg/m3 4.04 J0.469 05/11/2024 21:53TO-15 Benzene µg/m3 0.073 JB0.713 05/11/2024 21:53TO-15 Carbon Disulfide µg/m3 0.060 J1.20 05/11/2024 21:53TO-15 Chloroform µg/m3 0.086 J0.526 05/11/2024 21:53TO-15 Chloromethane µg/m3 0.067 J2.42 05/11/2024 21:53TO-15 Dichlorodifluoromethane µg/m3 0.134 J0.425 05/11/2024 21:53TO-15 Ethylbenzene µg/m3 0.106 JB4.63 05/11/2024 21:53TO-15 Isopropyl Alcohol µg/m3 0.139 177 05/10/2024 23:08TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48 J0.778 05/11/2024 21:53TO-15 Methylene Chloride µg/m3 0.488 J1.02 05/11/2024 21:53TO-15 Tetrachloroethene µg/m3 0.181 1230 05/10/2024 23:08TO-15 Tetrahydrofuran µg/m3 2.14 2.72 05/11/2024 21:53TO-15 Toluene µg/m3 0.090 J1.88 05/11/2024 21:53TO-15 Trichlorofluoromethane µg/m3 0.130 J1.07 05/11/2024 21:53TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.976 05/11/2024 21:53TO-15 o-Xylene µg/m3 0.157 J1.83 05/11/2024 21:53TO-15 m,p-Xylene µg/m3 0.217 Page 4 of 23 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 24-121-0011 Report Limit Project:NVR-019-004-D V 92298SS-1012-DUP J2.81 05/11/2024 21:53TO-15 Xylene (Total)µg/m3 0.157 V 92299SS-1012-D 832 05/10/2024 23:45TO-15 Acetone µg/m3 4.04 J0.456 05/11/2024 22:46TO-15 Benzene µg/m3 0.073 JB0.697 05/11/2024 22:46TO-15 Carbon Disulfide µg/m3 0.060 J0.912 05/11/2024 22:46TO-15 Chloroform µg/m3 0.086 J0.408 05/11/2024 22:46TO-15 Chloromethane µg/m3 0.067 J2.37 05/11/2024 22:46TO-15 Dichlorodifluoromethane µg/m3 0.134 1.84 05/11/2024 22:46TO-15 Ethyl Acetate µg/m3 0.136 J0.577 05/11/2024 22:46TO-15 Ethylbenzene µg/m3 0.106 J0.403 05/11/2024 22:46TO-15 4-Ethyltoluene µg/m3 0.128 21.8 05/11/2024 22:46TO-15 Isopropyl Alcohol µg/m3 0.139 231 05/10/2024 23:45TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48 J0.531 05/11/2024 22:46TO-15 Methylene Chloride µg/m3 0.488 J0.353 05/11/2024 22:46TO-15 Styrene µg/m3 0.124 J1.26 05/11/2024 22:46TO-15 Tetrachloroethene µg/m3 0.181 2410 05/10/2024 23:45TO-15 Tetrahydrofuran µg/m3 2.14 2.50 05/11/2024 22:46TO-15 Toluene µg/m3 0.090 J1.80 05/11/2024 22:46TO-15 Trichlorofluoromethane µg/m3 0.130 J1.66 05/11/2024 22:46TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.565 05/11/2024 22:46TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 J1.35 05/11/2024 22:46TO-15 o-Xylene µg/m3 0.157 J2.47 05/11/2024 22:46TO-15 m,p-Xylene µg/m3 0.217 J3.82 05/11/2024 22:46TO-15 Xylene (Total)µg/m3 0.157 Page 5 of 23   Client: Hart & Hickman (Charlotte) CASE NARRATIVE Project: NVR-019-004-D Lab Report Number: 24-121-0011 Date: 5/14/2024 Volatile Organic Compounds in Air- GC/MS Method TO-15 Analyte: Carbon Disulfide QC Batch No: V47235/V47233 Target analyte(s) was identified in the method blank associated with this project, below the Method Quantitation Limit. Per laboratory protocol any associated affected sample result is flagged "B" to indicate that it was detected in the method blank. Analyte: Isopropyl alcohol QC Batch No: V47235/V47233 Target analyte(s) was identified in the method blank associated with this project, below the Method Quantitation Limit. Per laboratory protocol any associated affected sample result is flagged "B" to indicate that it was detected in the method blank. Page 6 of 23 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-121-0011 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Trinh Desa Charlotte Received : 04/30/2024 NVR-019-004-D Report Date : 05/14/2024 Sample ID : Lab No : Sampled:SS-1012-B 92297 Matrix: 4/30/2024 13:20 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V47233 05/11/24 12:54 V47245 05/10/24 09:00 627 µg/m3 4.04 95.0Acetone 20 05/10/24 22:31 V47252ENM 0.277 J µg/m3 0.073 1.60Benzene 1 05/11/24 20:59 V47235ENM <0.147 µg/m3 0.147 10.4Benzyl Chloride 1 05/11/24 20:59 V47235ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 05/11/24 20:59 V47235ENM <0.153 µg/m3 0.153 5.17Bromoform 1 05/11/24 20:59 V47235ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 05/11/24 20:59 V47235ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 05/11/24 20:59 V47235ENM 0.249 JB µg/m3 0.060 6.23Carbon Disulfide 1 05/11/24 20:59 V47235ENM <0.155 µg/m3 0.155 3.15Carbon Tetrachloride 1 05/11/24 20:59 V47235ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 05/11/24 20:59 V47235ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 05/11/24 20:59 V47235ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 05/11/24 20:59 V47235ENM 1.24 J µg/m3 0.086 2.44Chloroform 1 05/11/24 20:59 V47235ENM <0.067 µg/m3 0.067 1.03Chloromethane 1 05/11/24 20:59 V47235ENM 1.91 J µg/m3 0.161 3.44Cyclohexane 1 05/11/24 20:59 V47235ENM <0.151 µg/m3 0.151 3.841,2-Dibromoethane 1 05/11/24 20:59 V47235ENM <0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 05/11/24 20:59 V47235ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 05/11/24 20:59 V47235ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 05/11/24 20:59 V47235ENM 2.35 J µg/m3 0.134 2.47Dichlorodifluoromethane 1 05/11/24 20:59 V47235ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 05/11/24 20:59 V47235ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 05/11/24 20:59 V47235ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 7 of 23 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-121-0011 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Trinh Desa Charlotte Received : 04/30/2024 NVR-019-004-D Report Date : 05/14/2024 Sample ID : Lab No : Sampled:SS-1012-B 92297 Matrix: 4/30/2024 13:20 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V47233 05/11/24 12:54 V47245 05/10/24 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 05/11/24 20:59 V47235ENM <0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 05/11/24 20:59 V47235ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 05/11/24 20:59 V47235ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 05/11/24 20:59 V47235ENM <0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 05/11/24 20:59 V47235ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 05/11/24 20:59 V47235ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 05/11/24 20:59 V47235ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 05/11/24 20:59 V47235ENM <0.136 µg/m3 0.136 1.80Ethyl Acetate 1 05/11/24 20:59 V47235ENM 0.395 J µg/m3 0.106 2.17Ethylbenzene 1 05/11/24 20:59 V47235ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 05/11/24 20:59 V47235ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 05/11/24 20:59 V47235ENM <0.143 µg/m3 0.143 2.05Heptane 1 05/11/24 20:59 V47235ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 05/11/24 20:59 V47235ENM <0.047 µg/m3 0.047 1.76n-Hexane 1 05/11/24 20:59 V47235ENM <0.285 µg/m3 0.285 2.052-Hexanone 1 05/11/24 20:59 V47235ENM 1.77 JB µg/m3 0.139 4.92Isopropyl Alcohol 1 05/11/24 20:59 V47235ENM 176 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 05/10/24 22:31 V47252ENM <0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 05/11/24 20:59 V47235ENM <0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 05/11/24 20:59 V47235ENM <0.488 µg/m3 0.488 1.74Methylene Chloride 1 05/11/24 20:59 V47235ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 05/11/24 20:59 V47235ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 8 of 23 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-121-0011 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Trinh Desa Charlotte Received : 04/30/2024 NVR-019-004-D Report Date : 05/14/2024 Sample ID : Lab No : Sampled:SS-1012-B 92297 Matrix: 4/30/2024 13:20 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V47233 05/11/24 12:54 V47245 05/10/24 09:00 <0.242 µg/m3 0.242 0.860Propene 1 05/11/24 20:59 V47235ENM <0.124 µg/m3 0.124 2.13Styrene 1 05/11/24 20:59 V47235ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 05/11/24 20:59 V47235ENM 1.04 J µg/m3 0.181 3.39Tetrachloroethene 1 05/11/24 20:59 V47235ENM 1230 µg/m3 2.14 29.5Tetrahydrofuran 20 05/10/24 22:31 V47252ENM 2.49 µg/m3 0.090 1.88Toluene 1 05/11/24 20:59 V47235ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 05/11/24 20:59 V47235ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 05/11/24 20:59 V47235ENM <0.087 µg/m3 0.087 2.731,1,2-Trichloroethane 1 05/11/24 20:59 V47235ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 05/11/24 20:59 V47235ENM 1.75 J µg/m3 0.130 2.81Trichlorofluoromethane 1 05/11/24 20:59 V47235ENM 1.04 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 05/11/24 20:59 V47235ENM 0.403 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 05/11/24 20:59 V47235ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 05/11/24 20:59 V47235ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 05/11/24 20:59 V47235ENM 0.981 J µg/m3 0.157 2.17o-Xylene 1 05/11/24 20:59 V47235ENM 1.77 J µg/m3 0.217 5.65m,p-Xylene 1 05/11/24 20:59 V47235ENM 2.75 J µg/m3 0.157 2.17Xylene (Total)1 05/11/24 20:59 V47235 Surrogate: 4-Bromofluorobenzene 103 Limits: 70-130%05/11/24 20:591 ENM V47235 Surrogate: 4-Bromofluorobenzene 98.6 Limits: 70-130%05/10/24 22:3120 ENM V47252 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 9 of 23 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-121-0011 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Trinh Desa Charlotte Received : 04/30/2024 NVR-019-004-D Report Date : 05/14/2024 Sample ID : Lab No : Sampled:SS-1012-DUP 92298 Matrix: 4/30/2024 0:00 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V47233 05/11/24 12:54 V47245 05/10/24 09:00 626 µg/m3 4.04 95.0Acetone 20 05/10/24 23:08 V47252ENM 0.469 J µg/m3 0.073 1.60Benzene 1 05/11/24 21:53 V47235ENM <0.147 µg/m3 0.147 10.4Benzyl Chloride 1 05/11/24 21:53 V47235ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 05/11/24 21:53 V47235ENM <0.153 µg/m3 0.153 5.17Bromoform 1 05/11/24 21:53 V47235ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 05/11/24 21:53 V47235ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 05/11/24 21:53 V47235ENM 0.713 JB µg/m3 0.060 6.23Carbon Disulfide 1 05/11/24 21:53 V47235ENM <0.155 µg/m3 0.155 3.15Carbon Tetrachloride 1 05/11/24 21:53 V47235ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 05/11/24 21:53 V47235ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 05/11/24 21:53 V47235ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 05/11/24 21:53 V47235ENM 1.20 J µg/m3 0.086 2.44Chloroform 1 05/11/24 21:53 V47235ENM 0.526 J µg/m3 0.067 1.03Chloromethane 1 05/11/24 21:53 V47235ENM <0.161 µg/m3 0.161 3.44Cyclohexane 1 05/11/24 21:53 V47235ENM <0.151 µg/m3 0.151 3.841,2-Dibromoethane 1 05/11/24 21:53 V47235ENM <0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 05/11/24 21:53 V47235ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 05/11/24 21:53 V47235ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 05/11/24 21:53 V47235ENM 2.42 J µg/m3 0.134 2.47Dichlorodifluoromethane 1 05/11/24 21:53 V47235ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 05/11/24 21:53 V47235ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 05/11/24 21:53 V47235ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 10 of 23 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-121-0011 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Trinh Desa Charlotte Received : 04/30/2024 NVR-019-004-D Report Date : 05/14/2024 Sample ID : Lab No : Sampled:SS-1012-DUP 92298 Matrix: 4/30/2024 0:00 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V47233 05/11/24 12:54 V47245 05/10/24 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 05/11/24 21:53 V47235ENM <0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 05/11/24 21:53 V47235ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 05/11/24 21:53 V47235ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 05/11/24 21:53 V47235ENM <0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 05/11/24 21:53 V47235ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 05/11/24 21:53 V47235ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 05/11/24 21:53 V47235ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 05/11/24 21:53 V47235ENM <0.136 µg/m3 0.136 1.80Ethyl Acetate 1 05/11/24 21:53 V47235ENM 0.425 J µg/m3 0.106 2.17Ethylbenzene 1 05/11/24 21:53 V47235ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 05/11/24 21:53 V47235ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 05/11/24 21:53 V47235ENM <0.143 µg/m3 0.143 2.05Heptane 1 05/11/24 21:53 V47235ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 05/11/24 21:53 V47235ENM <0.047 µg/m3 0.047 1.76n-Hexane 1 05/11/24 21:53 V47235ENM <0.285 µg/m3 0.285 2.052-Hexanone 1 05/11/24 21:53 V47235ENM 4.63 JB µg/m3 0.139 4.92Isopropyl Alcohol 1 05/11/24 21:53 V47235ENM 177 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 05/10/24 23:08 V47252ENM <0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 05/11/24 21:53 V47235ENM <0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 05/11/24 21:53 V47235ENM 0.778 J µg/m3 0.488 1.74Methylene Chloride 1 05/11/24 21:53 V47235ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 05/11/24 21:53 V47235ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 11 of 23 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-121-0011 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Trinh Desa Charlotte Received : 04/30/2024 NVR-019-004-D Report Date : 05/14/2024 Sample ID : Lab No : Sampled:SS-1012-DUP 92298 Matrix: 4/30/2024 0:00 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V47233 05/11/24 12:54 V47245 05/10/24 09:00 <0.242 µg/m3 0.242 0.860Propene 1 05/11/24 21:53 V47235ENM <0.124 µg/m3 0.124 2.13Styrene 1 05/11/24 21:53 V47235ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 05/11/24 21:53 V47235ENM 1.02 J µg/m3 0.181 3.39Tetrachloroethene 1 05/11/24 21:53 V47235ENM 1230 µg/m3 2.14 29.5Tetrahydrofuran 20 05/10/24 23:08 V47252ENM 2.72 µg/m3 0.090 1.88Toluene 1 05/11/24 21:53 V47235ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 05/11/24 21:53 V47235ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 05/11/24 21:53 V47235ENM <0.087 µg/m3 0.087 2.731,1,2-Trichloroethane 1 05/11/24 21:53 V47235ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 05/11/24 21:53 V47235ENM 1.88 J µg/m3 0.130 2.81Trichlorofluoromethane 1 05/11/24 21:53 V47235ENM 1.07 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 05/11/24 21:53 V47235ENM <0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 05/11/24 21:53 V47235ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 05/11/24 21:53 V47235ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 05/11/24 21:53 V47235ENM 0.976 J µg/m3 0.157 2.17o-Xylene 1 05/11/24 21:53 V47235ENM 1.83 J µg/m3 0.217 5.65m,p-Xylene 1 05/11/24 21:53 V47235ENM 2.81 J µg/m3 0.157 2.17Xylene (Total)1 05/11/24 21:53 V47235 Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%05/11/24 21:531 ENM V47235 Surrogate: 4-Bromofluorobenzene 106 Limits: 70-130%05/10/24 23:0820 ENM V47252 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 12 of 23 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-121-0011 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Trinh Desa Charlotte Received : 04/30/2024 NVR-019-004-D Report Date : 05/14/2024 Sample ID : Lab No : Sampled:SS-1012-D 92299 Matrix: 4/30/2024 13:48 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V47233 05/11/24 12:54 V47245 05/10/24 09:00 832 µg/m3 4.04 95.0Acetone 20 05/10/24 23:45 V47252ENM 0.456 J µg/m3 0.073 1.60Benzene 1 05/11/24 22:46 V47235ENM <0.147 µg/m3 0.147 10.4Benzyl Chloride 1 05/11/24 22:46 V47235ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 05/11/24 22:46 V47235ENM <0.153 µg/m3 0.153 5.17Bromoform 1 05/11/24 22:46 V47235ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 05/11/24 22:46 V47235ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 05/11/24 22:46 V47235ENM 0.697 JB µg/m3 0.060 6.23Carbon Disulfide 1 05/11/24 22:46 V47235ENM <0.155 µg/m3 0.155 3.15Carbon Tetrachloride 1 05/11/24 22:46 V47235ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 05/11/24 22:46 V47235ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 05/11/24 22:46 V47235ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 05/11/24 22:46 V47235ENM 0.912 J µg/m3 0.086 2.44Chloroform 1 05/11/24 22:46 V47235ENM 0.408 J µg/m3 0.067 1.03Chloromethane 1 05/11/24 22:46 V47235ENM <0.161 µg/m3 0.161 3.44Cyclohexane 1 05/11/24 22:46 V47235ENM <0.151 µg/m3 0.151 3.841,2-Dibromoethane 1 05/11/24 22:46 V47235ENM <0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 05/11/24 22:46 V47235ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 05/11/24 22:46 V47235ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 05/11/24 22:46 V47235ENM 2.37 J µg/m3 0.134 2.47Dichlorodifluoromethane 1 05/11/24 22:46 V47235ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 05/11/24 22:46 V47235ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 05/11/24 22:46 V47235ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 13 of 23 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-121-0011 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Trinh Desa Charlotte Received : 04/30/2024 NVR-019-004-D Report Date : 05/14/2024 Sample ID : Lab No : Sampled:SS-1012-D 92299 Matrix: 4/30/2024 13:48 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V47233 05/11/24 12:54 V47245 05/10/24 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 05/11/24 22:46 V47235ENM <0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 05/11/24 22:46 V47235ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 05/11/24 22:46 V47235ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 05/11/24 22:46 V47235ENM <0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 05/11/24 22:46 V47235ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 05/11/24 22:46 V47235ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 05/11/24 22:46 V47235ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 05/11/24 22:46 V47235ENM 1.84 µg/m3 0.136 1.80Ethyl Acetate 1 05/11/24 22:46 V47235ENM 0.577 J µg/m3 0.106 2.17Ethylbenzene 1 05/11/24 22:46 V47235ENM 0.403 J µg/m3 0.128 2.464-Ethyltoluene 1 05/11/24 22:46 V47235ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 05/11/24 22:46 V47235ENM <0.143 µg/m3 0.143 2.05Heptane 1 05/11/24 22:46 V47235ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 05/11/24 22:46 V47235ENM <0.047 µg/m3 0.047 1.76n-Hexane 1 05/11/24 22:46 V47235ENM <0.285 µg/m3 0.285 2.052-Hexanone 1 05/11/24 22:46 V47235ENM 21.8 µg/m3 0.139 4.92Isopropyl Alcohol 1 05/11/24 22:46 V47235ENM 231 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 05/10/24 23:45 V47252ENM <0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 05/11/24 22:46 V47235ENM <0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 05/11/24 22:46 V47235ENM 0.531 J µg/m3 0.488 1.74Methylene Chloride 1 05/11/24 22:46 V47235ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 05/11/24 22:46 V47235ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 14 of 23 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-121-0011 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Trinh Desa Charlotte Received : 04/30/2024 NVR-019-004-D Report Date : 05/14/2024 Sample ID : Lab No : Sampled:SS-1012-D 92299 Matrix: 4/30/2024 13:48 Air Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF TO-15 Prep TO-15 Prep Batch(es):V47233 05/11/24 12:54 V47245 05/10/24 09:00 <0.242 µg/m3 0.242 0.860Propene 1 05/11/24 22:46 V47235ENM 0.353 J µg/m3 0.124 2.13Styrene 1 05/11/24 22:46 V47235ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 05/11/24 22:46 V47235ENM 1.26 J µg/m3 0.181 3.39Tetrachloroethene 1 05/11/24 22:46 V47235ENM 2410 µg/m3 2.14 29.5Tetrahydrofuran 20 05/10/24 23:45 V47252ENM 2.50 µg/m3 0.090 1.88Toluene 1 05/11/24 22:46 V47235ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 05/11/24 22:46 V47235ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 05/11/24 22:46 V47235ENM <0.087 µg/m3 0.087 2.731,1,2-Trichloroethane 1 05/11/24 22:46 V47235ENM <0.199 µg/m3 0.199 2.15Trichloroethene 1 05/11/24 22:46 V47235ENM 1.80 J µg/m3 0.130 2.81Trichlorofluoromethane 1 05/11/24 22:46 V47235ENM 1.66 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 05/11/24 22:46 V47235ENM 0.565 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 05/11/24 22:46 V47235ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 05/11/24 22:46 V47235ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 05/11/24 22:46 V47235ENM 1.35 J µg/m3 0.157 2.17o-Xylene 1 05/11/24 22:46 V47235ENM 2.47 J µg/m3 0.217 5.65m,p-Xylene 1 05/11/24 22:46 V47235ENM 3.82 J µg/m3 0.157 2.17Xylene (Total)1 05/11/24 22:46 V47235 Surrogate: 4-Bromofluorobenzene 106 Limits: 70-130%05/11/24 22:461 ENM V47235 Surrogate: 4-Bromofluorobenzene 98.3 Limits: 70-130%05/10/24 23:4520 ENM V47252 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 15 of 23 Quality Control Data 24-121-0011Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V47235QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V47233 Associated Lab Samples: 92297, 92298, 92299 LRB-V47233 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/11/24 14:201.600.073<0.073µg/m3Benzene 05/11/24 14:2010.40.147<0.147µg/m3Benzyl Chloride 05/11/24 14:203.350.150<0.150µg/m3Bromodichloromethane 05/11/24 14:205.170.153<0.153µg/m3Bromoform 05/11/24 14:201.940.115<0.115µg/m3Bromomethane 05/11/24 14:201.110.328<0.328µg/m31,3-Butadiene 05/11/24 14:206.230.0600.439µg/m3Carbon Disulfide 05/11/24 14:203.150.155<0.155µg/m3Carbon Tetrachloride 05/11/24 14:202.300.107<0.107µg/m3Chlorobenzene 05/11/24 14:204.260.208<0.208µg/m3Chlorodibromomethane 05/11/24 14:201.320.164<0.164µg/m3Chloroethane 05/11/24 14:202.440.086<0.086µg/m3Chloroform 05/11/24 14:201.030.067<0.067µg/m3Chloromethane 05/11/24 14:203.440.161<0.161µg/m3Cyclohexane 05/11/24 14:203.840.151<0.151µg/m31,2-Dibromoethane 05/11/24 14:203.010.096<0.096µg/m31,2-Dichlorobenzene 05/11/24 14:2012.00.174<0.174µg/m31,3-Dichlorobenzene 05/11/24 14:203.010.186<0.186µg/m31,4-Dichlorobenzene 05/11/24 14:202.470.134<0.134µg/m3Dichlorodifluoromethane 05/11/24 14:202.020.101<0.101µg/m31,1-Dichloroethane 05/11/24 14:202.020.129<0.129µg/m31,2-Dichloroethane 05/11/24 14:201.980.107<0.107µg/m31,1-Dichloroethene 05/11/24 14:201.980.095<0.095µg/m3cis-1,2-Dichloroethene 05/11/24 14:201.980.108<0.108µg/m3trans-1,2-Dichloroethene 05/11/24 14:202.310.205<0.205µg/m31,2-Dichloropropane 05/11/24 14:203.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane 05/11/24 14:202.270.178<0.178µg/m3cis-1,3-Dichloropropene Page 1 of 6Date:05/14/2024 05:41 PM Page 16 of 23 Quality Control Data 24-121-0011Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V47235QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V47233 Associated Lab Samples: 92297, 92298, 92299 LRB-V47233 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/11/24 14:202.270.178<0.178µg/m3trans-1,3-Dichloropropene 05/11/24 14:201.800.435<0.435µg/m31,4-Dioxane 05/11/24 14:201.800.136<0.136µg/m3Ethyl Acetate 05/11/24 14:202.170.106<0.106µg/m3Ethylbenzene 05/11/24 14:202.460.128<0.128µg/m34-Ethyltoluene 05/11/24 14:203.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 05/11/24 14:202.050.143<0.143µg/m3Heptane 05/11/24 14:205.330.330<0.330µg/m3Hexachlorobutadiene 05/11/24 14:201.760.047<0.047µg/m3n-Hexane 05/11/24 14:202.050.285<0.285µg/m32-Hexanone 05/11/24 14:204.920.1390.496µg/m3Isopropyl Alcohol 05/11/24 14:201.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE) 05/11/24 14:202.050.121<0.121µg/m34-Methyl-2-Pentanone 05/11/24 14:201.740.488<0.488µg/m3Methylene Chloride 05/11/24 14:202.620.183<0.183µg/m3Naphthalene 05/11/24 14:200.8600.242<0.242µg/m3Propene 05/11/24 14:202.130.124<0.124µg/m3Styrene 05/11/24 14:203.430.104<0.104µg/m31,1,2,2-Tetrachloroethane 05/11/24 14:203.390.181<0.181µg/m3Tetrachloroethene 05/11/24 14:201.880.090<0.090µg/m3Toluene 05/11/24 14:203.710.209<0.209µg/m31,2,4-Trichlorobenzene 05/11/24 14:202.730.144<0.144µg/m31,1,1-Trichloroethane 05/11/24 14:202.730.087<0.087µg/m31,1,2-Trichloroethane 05/11/24 14:202.150.199<0.199µg/m3Trichloroethene 05/11/24 14:202.810.130<0.130µg/m3Trichlorofluoromethane 05/11/24 14:202.460.110<0.110µg/m31,2,4-Trimethylbenzene 05/11/24 14:202.460.236<0.236µg/m31,3,5-Trimethylbenzene Page 2 of 6Date:05/14/2024 05:41 PM Page 17 of 23 Quality Control Data 24-121-0011Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V47235QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V47233 Associated Lab Samples: 92297, 92298, 92299 LRB-V47233 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/11/24 14:201.760.224<0.224µg/m3Vinyl Acetate 05/11/24 14:201.280.127<0.127µg/m3Vinyl Chloride 05/11/24 14:202.170.157<0.157µg/m3o-Xylene 05/11/24 14:205.650.217<0.217µg/m3m,p-Xylene 05/11/24 14:204-Bromofluorobenzene (S)93.8 70-130 LCS-V47233Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10416.716.0µg/m3Benzene 70-130 10527.325.9µg/m3Benzyl Chloride 70-130 10334.533.5µg/m3Bromodichloromethane 70-130 10152.451.7µg/m3Bromoform 70-130 98.919.219.4µg/m3Bromomethane 70-130 99.011.011.1µg/m31,3-Butadiene 70-130 10616.615.6µg/m3Carbon Disulfide 70-130 10533.131.5µg/m3Carbon Tetrachloride 70-130 10524.123.0µg/m3Chlorobenzene 70-130 10444.542.6µg/m3Chlorodibromomethane 70-130 96.212.713.2µg/m3Chloroethane 70-130 10525.524.4µg/m3Chloroform 70-130 10310.610.3µg/m3Chloromethane 70-130 99.417.117.2µg/m3Cyclohexane 70-130 10740.938.4µg/m31,2-Dibromoethane 70-130 10531.630.1µg/m31,2-Dichlorobenzene 70-130 10531.530.1µg/m31,3-Dichlorobenzene 70-130 10531.730.1µg/m31,4-Dichlorobenzene 70-130 Page 3 of 6Date:05/14/2024 05:41 PM Page 18 of 23 Quality Control Data 24-121-0011Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V47235QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V47233 LCS-V47233Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 97.124.024.7µg/m3Dichlorodifluoromethane 70-130 10721.720.2µg/m31,1-Dichloroethane 70-130 10220.620.2µg/m31,2-Dichloroethane 70-130 10721.119.8µg/m31,1-Dichloroethene 70-130 10921.619.8µg/m3cis-1,2-Dichloroethene 70-130 11021.719.8µg/m3trans-1,2-Dichloroethene 70-130 10123.323.1µg/m31,2-Dichloropropane 70-130 97.134.035.0µg/m31,2-Dichlorotetrafluoroethane 70-130 10824.622.7µg/m3cis-1,3-Dichloropropene 70-130 10624.122.7µg/m3trans-1,3-Dichloropropene 70-130 10318.518.0µg/m31,4-Dioxane 70-130 10418.818.0µg/m3Ethyl Acetate 70-130 10723.321.7µg/m3Ethylbenzene 70-130 10024.724.6µg/m34-Ethyltoluene 70-130 10640.738.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130 11022.620.5µg/m3Heptane 70-130 10857.453.3µg/m3Hexachlorobutadiene 70-130 10919.117.6µg/m3n-Hexane 70-130 10722.020.5µg/m32-Hexanone 70-130 10613.012.3µg/m3Isopropyl Alcohol 70-130 10919.618.0µg/m3Methyl tert-butyl ether (MTBE)70-130 10722.020.5µg/m34-Methyl-2-Pentanone 70-130 96.516.817.4µg/m3Methylene Chloride 70-130 11129.026.2µg/m3Naphthalene 70-130 97.68.418.61µg/m3Propene 70-130 10221.721.3µg/m3Styrene 70-130 10235.134.3µg/m31,1,2,2-Tetrachloroethane 70-130 Page 4 of 6Date:05/14/2024 05:41 PM Page 19 of 23 Quality Control Data 24-121-0011Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V47235QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V47233 LCS-V47233Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10234.533.9µg/m3Tetrachloroethene 70-130 10720.218.8µg/m3Toluene 70-130 11341.937.1µg/m31,2,4-Trichlorobenzene 70-130 10328.027.3µg/m31,1,1-Trichloroethane 70-130 10428.427.3µg/m31,1,2-Trichloroethane 70-130 10327.726.9µg/m3Trichloroethene 70-130 10730.028.1µg/m3Trichlorofluoromethane 70-130 10425.724.6µg/m31,2,4-Trimethylbenzene 70-130 10024.724.6µg/m31,3,5-Trimethylbenzene 70-130 11119.517.6µg/m3Vinyl Acetate 70-130 95.312.212.8µg/m3Vinyl Chloride 70-130 10723.221.7µg/m3o-Xylene 70-130 10947.443.4µg/m3m,p-Xylene 70-130 96.64-Bromofluorobenzene (S)70-130 Page 5 of 6Date:05/14/2024 05:41 PM Page 20 of 23 Quality Control Data 24-121-0011Report No: Project Description: Client ID:Hart & Hickman (Charlotte) NVR-019-004-D QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS TO-15 V47252QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V47245 Associated Lab Samples: 92297, 92298, 92299 LRB-V47245 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/10/24 13:364.750.2020.648µg/m3Acetone 05/10/24 13:361.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK) 05/10/24 13:361.470.1070.359µg/m3Tetrahydrofuran 05/10/24 13:364-Bromofluorobenzene (S)97.7 70-130 LCS-V47245Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10212.111.9µg/m3Acetone 70-130 99.314.714.8µg/m3Methyl Ethyl Ketone (MEK)70-130 10114.814.7µg/m3Tetrahydrofuran 70-130 93.54-Bromofluorobenzene (S)70-130 Page 6 of 6Date:05/14/2024 05:41 PM Page 21 of 23 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:24-121-0011 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:N/A Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:04/30/2024 14:32:02 Special precautions or instructions included? Comments: Page 22 of 23 Page 23 of 23 Appendix D PVC Primer and PVC Glue Material Safety Data Sheets SAFETY DATA SHEET 1. Identification Oatey Purple Primer- NSF Listed for PVC and CPVCProduct identifier Other means of identification 1402CSDS number Part Numbers: 30755(TV), 30756(TV), 30757(TV), 30758, 30759, 30927, 31480, 31481, 31482, 31483Synonyms Joining PVC PipesRecommended use None known.Recommended restrictions Manufacturer/Importer/Supplier/Distributor information Company Name Oatey Co. Address 4700 West 160th St. Cleveland, OH 44135 Telephone 216-267-7100 E-mail info@oatey.com Transport Emergency Chemtrec 1-800-424-9300 (Outside the US 1-703-527-3887) Emergency First Aid 1-877-740-5015 Contact person MSDS Coordinator 2. Hazard(s) identification Category 2Flammable liquidsPhysical hazards Category 1Physical hazards not otherwise classified Category 4Acute toxicity, oralHealth hazards Category 2Skin corrosion/irritation Category 2ASerious eye damage/eye irritation Category 3 respiratory tract irritationSpecific target organ toxicity, single exposure Category 3 narcotic effectsSpecific target organ toxicity, single exposure Category 1Aspiration hazard Category 1Health hazards not otherwise classified Not classified.Environmental hazards Label elements Signal word Danger Hazard statement Highly flammable liquid and vapor. Harmful if swallowed. May be fatal if swallowed and enters airways. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. May cause drowsiness or dizziness. Precautionary statement Prevention Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. Keep container tightly closed. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting/equipment. Use non-sparking tools. Take action to prevent static discharges. Avoid breathing mist or vapor. Wash thoroughly after handling. Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada 926733 Version #: 01 Revision date: - Issue date: 21-December-2015 1 / 9 Response IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth. Do NOT induce vomiting. Take off contaminated clothing and wash it before reuse. In case of fire: Use appropriate media to extinguish. Storage Keep cool. Store in a well-ventilated place. Keep container tightly closed. Store locked up. Disposal Dispose of contents/container in accordance with local/regional/national/international regulations. Other hazards Frequent or prolonged contact may defat and dry the skin, leading to discomfort and dermatitis. May form explosive peroxides. Supplemental information Not applicable. 3. Composition/information on ingredients Mixtures 67-64-1 25-40Acetone CAS number %Chemical name 108-94-1 25-40Cyclohexanone 78-93-3 15-30Methyl ethyl ketone All concentrations are in percent by weight unless ingredient is a gas. Gas concentrations are in percent by volume. 4. First-aid measures Remove victim to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician if you feel unwell. Inhalation Take off immediately all contaminated clothing. Wash with plenty of soap and water. If skin irritation occurs: Get medical advice/attention. Skin contact Immediately flush eyes with plenty of water for at least 15 minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention. Eye contact Call a physician or poison control center immediately. Do not induce vomiting. If vomiting occurs, keep head low so that stomach content doesn't get into the lungs. Aspiration may cause pulmonary edema and pneumonitis. Ingestion Irritation of nose and throat. Aspiration may cause pulmonary edema and pneumonitis. Severe eye irritation. Symptoms may include stinging, tearing, redness, swelling, and blurred vision. May cause respiratory irritation. Vapors have a narcotic effect and may cause headache, fatigue, dizziness and nausea. Skin irritation. May cause redness and pain. Most important symptoms/effects, acute and delayed Provide general supportive measures and treat symptomatically. Thermal burns: Flush with water immediately. While flushing, remove clothes which do not adhere to affected area. Call an ambulance. Continue flushing during transport to hospital. In case of shortness of breath, give oxygen. Keep victim warm. Keep victim under observation. Symptoms may be delayed. Indication of immediate medical attention and special treatment needed Take off all contaminated clothing immediately. IF exposed or concerned: Get medical advice/attention. Ensure that medical personnel are aware of the material(s) involved, and take precautions to protect themselves. Wash contaminated clothing before reuse. General information 5. Fire-fighting measures Alcohol resistant foam. Water fog. Dry chemical powder. Carbon dioxide (CO2).Suitable extinguishing media Do not use water jet as an extinguisher, as this will spread the fire.Unsuitable extinguishing media Vapors may form explosive mixtures with air. Vapors may travel considerable distance to a source of ignition and flash back. During fire, gases hazardous to health may be formed. Specific hazards arising from the chemical Self-contained breathing apparatus and full protective clothing must be worn in case of fire.Special protective equipment and precautions for firefighters In case of fire and/or explosion do not breathe fumes. Move containers from fire area if you can do so without risk. Fire fighting equipment/instructions Use standard firefighting procedures and consider the hazards of other involved materials. Cool containers exposed to flames with water until well after the fire is out.Specific methods Highly flammable liquid and vapor. This product contains tetrahydrofuran that may form explosive organic peroxide when exposed to air or light or with age. General fire hazards Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada 926733 Version #: 01 Revision date: - Issue date: 21-December-2015 2 / 9 6. Accidental release measures Keep unnecessary personnel away. Keep people away from and upwind of spill/leak. Keep out of low areas. Eliminate all ignition sources (no smoking, flares, sparks, or flames in immediate area). Wear appropriate protective equipment and clothing during clean-up. Avoid inhalation of vapors or mists. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Ventilate closed spaces before entering them. Local authorities should be advised if significant spillages cannot be contained. For personal protection, see section 8 of the SDS. Personal precautions, protective equipment and emergency procedures Eliminate all ignition sources (no smoking, flares, sparks, or flames in immediate area). Take precautionary measures against static discharge. Use only non-sparking tools. Keep combustibles (wood, paper, oil, etc.) away from spilled material. Large Spills: Stop the flow of material, if this is without risk. Dike the spilled material, where this is possible. Cover with plastic sheet to prevent spreading. Use a non-combustible material like vermiculite, sand or earth to soak up the product and place into a container for later disposal. Use water spray to reduce vapors or divert vapor cloud drift. Following product recovery, flush area with water. Small Spills: Wipe up with absorbent material (e.g. cloth, fleece). Clean surface thoroughly to remove residual contamination. Never return spills to original containers for re-use. This product is miscible in water. For waste disposal, see section 13 of the SDS. Methods and materials for containment and cleaning up Avoid discharge into drains, water courses or onto the ground.Environmental precautions 7. Handling and storage Vapors may form explosive mixtures with air. Do not handle, store or open near an open flame, sources of heat or sources of ignition. Protect material from direct sunlight. Take precautionary measures against static discharges. All equipment used when handling the product must be grounded. Use non-sparking tools and explosion-proof equipment. Do not taste or swallow. Avoid breathing mist or vapor. Avoid contact with skin. Avoid contact with eyes. Avoid prolonged exposure. Avoid contact with clothing. Provide adequate ventilation. Wear appropriate personal protective equipment. Observe good industrial hygiene practices. When using, do not eat, drink or smoke. Wash hands thoroughly after handling. Precautions for safe handling Store locked up. Keep away from heat, sparks and open flame. Prevent electrostatic charge build-up by using common bonding and grounding techniques. Store in original tightly closed container. Store in a cool, dry place out of direct sunlight. Store in a well-ventilated place. Store away from incompatible materials (see Section 10 of the SDS). Keep in an area equipped with sprinklers. Conditions for safe storage, including any incompatibilities 8. Exposure controls/personal protection Occupational exposure limits US. ACGIH Threshold Limit Values ValueTypeComponents STEL 500 ppmAcetone (CAS 67-64-1) TWA 250 ppm STEL 50 ppmCyclohexanone (CAS 108-94-1) TWA 20 ppm STEL 300 ppmMethyl ethyl ketone (CAS 78-93-3) TWA 200 ppm Canada. Alberta OELs (Occupational Health & Safety Code, Schedule 1, Table 2) ValueTypeComponents STEL 1800 mg/m3Acetone (CAS 67-64-1) 750 ppm TWA 1200 mg/m3 500 ppm STEL 200 mg/m3Cyclohexanone (CAS 108-94-1) 50 ppm TWA 80 mg/m3 20 ppm Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada 926733 Version #: 01 Revision date: - Issue date: 21-December-2015 3 / 9 Canada. Alberta OELs (Occupational Health & Safety Code, Schedule 1, Table 2) ValueTypeComponents STEL 885 mg/m3Methyl ethyl ketone (CAS 78-93-3) 300 ppm TWA 590 mg/m3 200 ppm Canada. British Columbia OELs. (Occupational Exposure Limits for Chemical Substances, Occupational Health and Safety Regulation 296/97, as amended) ValueTypeComponents STEL 500 ppmAcetone (CAS 67-64-1) TWA 250 ppm STEL 50 ppmCyclohexanone (CAS 108-94-1) TWA 20 ppm STEL 100 ppmMethyl ethyl ketone (CAS 78-93-3) TWA 50 ppm Canada. Manitoba OELs (Reg. 217/2006, The Workplace Safety And Health Act) ValueTypeComponents STEL 500 ppmAcetone (CAS 67-64-1) TWA 250 ppm STEL 50 ppmCyclohexanone (CAS 108-94-1) TWA 20 ppm STEL 300 ppmMethyl ethyl ketone (CAS 78-93-3) TWA 200 ppm Canada. Ontario OELs. (Control of Exposure to Biological or Chemical Agents) ValueTypeComponents STEL 750 ppmAcetone (CAS 67-64-1) TWA 500 ppm STEL 50 ppmCyclohexanone (CAS 108-94-1) TWA 20 ppm STEL 300 ppmMethyl ethyl ketone (CAS 78-93-3) TWA 200 ppm Canada. Quebec OELs. (Ministry of Labor - Regulation Respecting the Quality of the Work Environment) ValueTypeComponents STEL 2380 mg/m3Acetone (CAS 67-64-1) 1000 ppm TWA 1190 mg/m3 500 ppm TWA 100 mg/m3Cyclohexanone (CAS 108-94-1) 25 ppm STEL 300 mg/m3Methyl ethyl ketone (CAS 78-93-3) 100 ppm TWA 150 mg/m3 50 ppm Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada 926733 Version #: 01 Revision date: - Issue date: 21-December-2015 4 / 9 Biological limit values ACGIH Biological Exposure Indices Value Sampling TimeDeterminant SpecimenComponents 25 mg/l Acetone Urine *Acetone (CAS 67-64-1) 80 mg/l 1,2-Cyclohexan ediol,with hydrolysis Urine *Cyclohexanone (CAS 108-94-1) 8 mg/l Cyclohexanol, with hydrolysis Urine * 2 mg/l MEK Urine *Methyl ethyl ketone (CAS 78-93-3) * - For sampling details, please see the source document. Exposure guidelines Canada - Alberta OELs: Skin designation Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin. Canada - British Columbia OELs: Skin designation Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin. Canada - Manitoba OELs: Skin designation Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin. Canada - Ontario OELs: Skin designation Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin. Canada - Quebec OELs: Skin designation Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin. Canada - Saskatchewan OELs: Skin designation Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin. US ACGIH Threshold Limit Values: Skin designation Cyclohexanone (CAS 108-94-1) Can be absorbed through the skin. Explosion-proof general and local exhaust ventilation. Good general ventilation (typically 10 air changes per hour) should be used. Ventilation rates should be matched to conditions. If applicable, use process enclosures, local exhaust ventilation, or other engineering controls to maintain airborne levels below recommended exposure limits. If exposure limits have not been established, maintain airborne levels to an acceptable level. Eye wash facilities and emergency shower must be available when handling this product. Appropriate engineering controls Individual protection measures, such as personal protective equipment Wear safety glasses with side shields (or goggles).Eye/face protection Skin protection Wear appropriate chemical resistant gloves.Hand protection Wear appropriate chemical resistant clothing.Other If engineering controls do not maintain airborne concentrations below recommended exposure limits (where applicable) or to an acceptable level (in countries where exposure limits have not been established), an approved respirator must be worn. Respiratory protection Wear appropriate thermal protective clothing, when necessary.Thermal hazards When using, do not eat, drink or smoke. Always observe good personal hygiene measures, such as washing after handling the material and before eating, drinking, and/or smoking. Routinely wash work clothing and protective equipment to remove contaminants. General hygiene considerations 9. Physical and chemical properties Appearance Liquid.Physical state Translucent liquid.Form PurpleColor Solvent.Odor Odor threshold Not available. pH Not available. Melting point/freezing point Not available. Initial boiling point and boiling range 151 °F (66.11 °C) Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada 926733 Version #: 01 Revision date: - Issue date: 21-December-2015 5 / 9 Flash point 14.0 - 23.0 °F (-10.0 - -5.0 °C) Evaporation rate 5.5 - 8 Not available.Flammability (solid, gas) Upper/lower flammability or explosive limits Flammability limit - lower (%) 1.8 Flammability limit - upper (%) 11.8 Explosive limit - lower (%)Not available. Explosive limit - upper (%)Not available. Vapor pressure 145 mm Hg @ 20 C Vapor density 2.5 Relative density 0.84 +/- 0.02 @20°C Solubility(ies) Solubility (water)Negligible Partition coefficient (n-octanol/water) Not available. Auto-ignition temperature Not available. Decomposition temperature Not available. Viscosity Not available. Other information Bulk density 7 lb/gal VOC (Weight %)505 g/l SQACMD Method 24 10. Stability and reactivity The product is stable and non-reactive under normal conditions of use, storage and transport.Reactivity Material is stable under normal conditions.Chemical stability No dangerous reaction known under conditions of normal use.Possibility of hazardous reactions Avoid heat, sparks, open flames and other ignition sources. Avoid temperatures exceeding the flash point. Contact with incompatible materials. Conditions to avoid Acids. Strong oxidizing agents. Ammonia. Amines. Isocyanates. Caustics.Incompatible materials No hazardous decomposition products are known.Hazardous decomposition products 11. Toxicological information Information on likely routes of exposure Inhalation May be fatal if swallowed and enters airways. May cause irritation to the respiratory system. Vapors have a narcotic effect and may cause headache, fatigue, dizziness and nausea. Prolonged inhalation may be harmful. Skin contact Causes skin irritation. Eye contac Causes serious eye irritation. Ingestion May be fatal if swallowed and enters airways. Harmful if swallowed. Symptoms related to the physical, chemical and toxicological characteristics Irritation of nose and throat. Aspiration may cause pulmonary edema and pneumonitis. Severe eye irritation. Symptoms may include stinging, tearing, redness, swelling, and blurred vision. Skin irritation. May cause redness and pain. Symptoms of overexposure may be headache, dizziness, tiredness, nausea and vomitin . Information on toxicological effects Acute toxicit May be fatal if swallowed and enters airways. Narcotic effects. May cause respiratory irritation. Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada 926733 Version #: 01 Revision date: - Issue date: 21-December-2015 6 / 9 Test ResultsComponents Species Acetone (CAS 67-64-1) LD50 Rabbit Dermal Acute 20 ml/kg LC50 Rat Inhalation 50 mg/l, 8 Hours LD50 Rat Oral 5800 mg/kg Cyclohexanone (CAS 108-94-1) LD50 Rabbit Dermal Acute 948 mg/kg LC50 Rat Inhalation 8000 ppm, 4 hours LD50 Rat Oral 800 mg/kg * Estimates for product may be based on additional component data not shown. Causes skin irritation.Skin corrosion/irritation Causes serious eye irritation.Serious eye damage/eye irritation Respiratory or skin sensitization Respiratory sensitization Not available. This product is not expected to cause skin sensitization.Skin sensitization No data available to indicate product or any components present at greater than 0.1% are mutagenic or genotoxic. Germ cell mutagenicity Carcinogenicity In 2012 USEPA Integrated Risk Information System (IRIS) reviewed a two species inhalation lifetime study on THF conducted by NTP (1998). Male rats developed renal tumors and female mice developed liver tumors while neither the female rats nor the male mice showed similar results. Because the carcinogenic mechanisms could not be identified clearly in either species for either tumor, the EPA determined that the male rat and female mouse findings are relevant to the assessment of carcinogenic potential in humans. Therefore, the IRIS review concludes that these data in aggregate indicate that there is "suggestive evidence of carcinogenic potential" following exposure to THF by all routes of exposure. ACGIH Carcinogens Acetone (CAS 67-64-1) A4 Not classifiable as a human carcinogen. Cyclohexanone (CAS 108-94-1) A3 Confirmed animal carcinogen with unknown relevance to humans. Canada - Manitoba OELs: carcinogenicity ACETONE (CAS 67-64-1) Not classifiable as a human carcinogen. CYCLOHEXANONE (CAS 108-94-1) Confirmed animal carcinogen with unknown relevance to humans. IARC Monographs. Overall Evaluation of Carcinogenicity Cyclohexanone (CAS 108-94-1) 3 Not classifiable as to carcinogenicity to humans. This product is not expected to cause reproductive or developmental effects.Reproductive toxicity Specific target organ toxicity - single exposure Narcotic effects. Respiratory tract irritation. Specific target organ toxicity - repeated exposure Not classified. Aspiration hazard May be fatal if swallowed and enters airways. Chronic effects Prolonged inhalation may be harmful. 12. Ecological information The product is not classified as environmentally hazardous. However, this does not exclude the possibility that large or frequent spills can have a harmful or damaging effect on the environment. Ecotoxicity Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada 926733 Version #: 01 Revision date: - Issue date: 21-December-2015 7 / 9 Components Test ResultsSpecies Acetone (CAS 67-64-1) Aquatic LC50Fish > 100 mg/l, 96 hoursFathead minnow (Pimephales promelas) * Estimates for product may be based on additional component data not shown. Cyclohexanone (CAS 108-94-1) Aquatic LC50Fish 481 - 578 mg/l, 96 hoursFathead minnow (Pimephales promelas) No data is available on the degradability of this product.Persistence and degradability No data available.Bioaccumulative potential Partition coefficient n-octanol / water (log Kow) Acetone (CAS 67-64-1) -0.24 Cyclohexanone (CAS 108-94-1) 0.81 Methyl ethyl ketone (CAS 78-93-3) 0.29 No data available.Mobility in soil Other adverse effects No other adverse environmental effects (e.g. ozone depletion, photochemical ozone creation potential, endocrine disruption, global warming potential) are expected from this component. 13. Disposal considerations Collect and reclaim or dispose in sealed containers at licensed waste disposal site. This material and its container must be disposed of as hazardous waste. Do not allow this material to drain into sewers/water supplies. Do not contaminate ponds, waterways or ditches with chemical or used container. Dispose of contents/container in accordance with local/regional/national/international regulations. Disposal instructions Dispose in accordance with all applicable regulations.Local disposal regulations The waste code should be assigned in discussion between the user, the producer and the waste disposal company. Hazardous waste code Dispose of in accordance with local regulations. Empty containers or liners may retain some product residues. This material and its container must be disposed of in a safe manner (see: Disposal instructions). Waste from residues / unused products Since emptied containers may retain product residue, follow label warnings even after container is emptied. Empty containers should be taken to an approved waste handling site for recycling or disposal. Contaminated packaging 14. Transport information TDG UN1993UN number FLAMMABLE LIQUID, N.O.S. (Methyl ethyl ketone, Acetone)UN proper shipping name 3Class Transport hazard class(es) -Subsidiary risk IIPacking group DEnvironmental hazards Read safety instructions, SDS and emergency procedures before handling.Special precautions for user IATA UN1993UN number Flammable liquid, n.o.s. (Methyl ethyl ketone, Acetone)UN proper shipping name 3Class Transport hazard class(es) -Subsidiary risk IIPacking group No.Environmental hazards 3HERG Code Read safety instructions, SDS and emergency procedures before handling.Special precautions for user IMDG UN1993UN number FLAMMABLE LIQUID, N.O.S. (Methyl ethyl ketone, Acetone)UN proper shipping name Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada 926733 Version #: 01 Revision date: - Issue date: 21-December-2015 8 / 9 3Class Transport hazard class(es) -Subsidiary risk IIPacking group No.Marine pollutant Environmental hazards F-E, S-EEmS Read safety instructions, SDS and emergency procedures before handling.Special precautions for user Not available.Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code 15. Regulatory information This product has been classified in accordance with the hazard criteria of the HPR and the SDS contains all the information required by the HPR. Canadian regulations Controlled Drugs and Substances Act Not regulated. Export Control List (CEPA 1999, Schedule 3) Not listed. Greenhouse Gases Not listed. Precursor Control Regulations Acetone (CAS 67-64-1) Class B Methyl ethyl ketone (CAS 78-93-3) Class B International regulations Stockholm Convention Not applicable. Rotterdam Convention Not applicable. Kyoto protocol Not applicable. Montreal Protocol Not applicable. Basel Convention Not applicable. International Inventories Country(s) or region Inventory name On inventory (yes/no)* Domestic Substances List (DSL) YesCanada Non-Domestic Substances List (NDSL) NoCanada *A "Yes" indicates this product complies with the inventory requirements administered by the governing country(s). "No" indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governing country(s). Toxic Substances Control Act (TSCA) Inventory YesUnited States & Puerto Rico 16. Other Information 21-December-2015Issue date -Revision date Version #01 Oatey Co. cannot anticipate all conditions under which this information and its product, or the products of other manufacturers in combination with its product, may be used. It is the user’s responsibility to ensure safe conditions for handling, storage and disposal of the product, and to assume liability for loss, injury, damage or expense due to improper use. The information in the sheet was written based on the best knowledge and experience currently available. Disclaimer Oatey Purple Primer- NSF Listed for PVC and CPVC SDS Canada 926733 Version #: 01 Revision date: - Issue date: 21-December-2015 9 / 9 SAFETY DATA SHEET 1. Identification PVC Regular Clear CementProduct identifier Other means of identification 1100EProduct code Part Numbers: 31012, 31013, 31014, 31015, 31016, 31958, 31959, 31960, 31961Synonyms Joining PVC PipesRecommended use None known.Recommended restrictions Manufacturer/Importer/Supplier/Distributor information Company Name Oatey Co. Address 4700 West 160th St. Cleveland, OH 44135 Telephone 216-267-7100 E-mail info@oatey.com Transport Emergency Chemtrec 1-800-424-9300 (Outside the US 1-703-527-3887) Emergency First Aid 1-877-740-5015 Contact person MSDS Coordinator 2. Hazard(s) identification Category 2Flammable liquidsPhysical hazards Category 4Acute toxicity, oralHealth hazards Category 2Skin corrosion/irritation Category 2ASerious eye damage/eye irritation Category 3 respiratory tract irritationSpecific target organ toxicity, single exposure Category 3 narcotic effectsSpecific target organ toxicity, single exposure Category 1Aspiration hazard Not classified.OSHA defined hazards Label elements Signal word Danger Hazard statement Highly flammable liquid and vapor. Harmful if swallowed. May be fatal if swallowed and enters airways. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. May cause drowsiness or dizziness. Precautionary statement Prevention Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Keep container tightly closed. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting equipment. Use only non-sparking tools. Take precautionary measures against static discharge. Avoid breathing mist or vapor. Wash thoroughly after handling. Do not eat, drink or smoke when using this product. Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. Response If swallowed: Immediately call a poison center/doctor. If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. If inhaled: Remove person to fresh air and keep comfortable for breathing. If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a poison center/doctor if you feel unwell. Rinse mouth. Do NOT induce vomiting. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Get medical advice/attention. Take off contaminated clothing and wash before reuse. In case of fire: Use appropriate media to extinguish. SDS USPVC Regular Clear Cement 927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 1 / 10 Storage Store in a well-ventilated place. Keep container tightly closed. Keep cool. Store locked up. Disposal Dispose of contents/container in accordance with local/regional/national/international regulations. Hazard(s) not otherwise classified (HNOC) Frequent or prolonged contact may defat and dry the skin, leading to discomfort and dermatitis. May form explosive peroxides. Contains a chemical classified by the US EPA as a suspected possible carcinogen. Supplemental information Not applicable. 3. Composition/information on ingredients Mixtures 78-93-3 25-40Methyl ethyl ketone CAS number %Chemical name 108-94-1 10-25Cyclohexanone 109-99-9 10-25Furan, Tetrahydro- 67-64-1 5-15Acetone 9002-86-2 5-15Polyvinyl chloride *Designates that a specific chemical identity and/or percentage of composition has been withheld as a trade secret. 4. First-aid measures Remove victim to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician if you feel unwell.Inhalation Take off immediately all contaminated clothing. Wash with plenty of soap and water. If skin irritation occurs: Get medical advice/attention. Skin contact Immediately flush eyes with plenty of water for at least 15 minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention.Eye contact Call a physician or poison control center immediately. Do not induce vomiting. If vomiting occurs, keep head low so that stomach content doesn't get into the lungs. Aspiration may cause pulmonary edema and pneumonitis. Ingestion Irritation of nose and throat. Aspiration may cause pulmonary edema and pneumonitis. Severe eye irritation. Symptoms may include stinging, tearing, redness, swelling, and blurred vision. May cause respiratory irritation. Vapors have a narcotic effect and may cause headache, fatigue, dizziness and nausea. Skin irritation. May cause redness and pain. Most important symptoms/effects, acute and delayed Provide general supportive measures and treat symptomatically. Thermal burns: Flush with water immediately. While flushing, remove clothes which do not adhere to affected area. Call an ambulance. Continue flushing during transport to hospital. In case of shortness of breath, give oxygen. Keep victim warm. Keep victim under observation. Symptoms may be delayed. Indication of immediate medical attention and special treatment needed Take off all contaminated clothing immediately. Ensure that medical personnel are aware of the material(s) involved, and take precautions to protect themselves. Wash contaminated clothing before reuse. General information 5. Fire-fighting measures Alcohol resistant foam. Water fog. Dry chemical powder. Carbon dioxide (CO2).Suitable extinguishing media Do not use water jet as an extinguisher, as this will spread the fire.Unsuitable extinguishing media Vapors may form explosive mixtures with air. Vapors may travel considerable distance to a source of ignition and flash back. During fire, gases hazardous to health may be formed. Specific hazards arising from the chemical Self-contained breathing apparatus and full protective clothing must be worn in case of fire.Special protective equipment and precautions for firefighters In case of fire and/or explosion do not breathe fumes. Move containers from fire area if you can do so without risk. Fire fighting equipment/instructions Use standard firefighting procedures and consider the hazards of other involved materials.Specific methods Highly flammable liquid and vapor. This product contains tetrahydrofuran that may form explosive organic peroxide when exposed to air or light or with age.General fire hazards SDS USPVC Regular Clear Cement 927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 2 / 10 6. Accidental release measures Keep unnecessary personnel away. Keep people away from and upwind of spill/leak. Keep out of low areas. Eliminate all ignition sources (no smoking, flares, sparks, or flames in immediate area). Wear appropriate protective equipment and clothing during clean-up. Avoid breathing mist or vapor. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Ventilate closed spaces before entering them. Local authorities should be advised if significant spillages cannot be contained. For personal protection, see section 8 of the SDS. Personal precautions, protective equipment and emergency procedures Eliminate all ignition sources (no smoking, flares, sparks, or flames in immediate area). Take precautionary measures against static discharge. Use only non-sparking tools. Keep combustibles (wood, paper, oil, etc.) away from spilled material. This product is miscible in water. Large Spills: Stop the flow of material, if this is without risk. Use water spray to reduce vapors or divert vapor cloud drift. Dike the spilled material, where this is possible. Cover with plastic sheet to prevent spreading. Use a non-combustible material like vermiculite, sand or earth to soak up the product and place into a container for later disposal. Prevent entry into waterways, sewer, basements or confined areas. Following product recovery, flush area with water. Small Spills: Absorb with earth, sand or other non-combustible material and transfer to containers for later disposal. Wipe up with absorbent material (e.g. cloth, fleece). Clean surface thoroughly to remove residual contamination. Never return spills to original containers for re-use. For waste disposal, see section 13 of the SDS. Methods and materials for containment and cleaning up Avoid discharge into drains, water courses or onto the ground.Environmental precautions 7. Handling and storage Vapors may form explosive mixtures with air. Do not handle, store or open near an open flame, sources of heat or sources of ignition. Protect material from direct sunlight. Explosion-proof general and local exhaust ventilation. Take precautionary measures against static discharges. All equipment used when handling the product must be grounded. Use non-sparking tools and explosion-proof equipment. Avoid breathing mist or vapor. Avoid contact with eyes, skin, and clothing. Avoid prolonged exposure. Do not taste or swallow. When using, do not eat, drink or smoke. Wear appropriate personal protective equipment. Wash hands thoroughly after handling. Observe good industrial hygiene practices. Precautions for safe handling Store locked up. Keep away from heat, sparks and open flame. Prevent electrostatic charge build-up by using common bonding and grounding techniques. Store in a cool, dry place out of direct sunlight. Store in original tightly closed container. Store in a well-ventilated place. Store away from incompatible materials (see Section 10 of the SDS). Conditions for safe storage, including any incompatibilities 8. Exposure controls/personal protection Occupational exposure limits US. OSHA Specifically Regulated Substances (29 CFR 1910.1001-1050) ValueTypeComponents STEL 5 ppmPolyvinyl chloride (CAS 9002-86-2) TWA 1 ppm US. OSHA Table Z-1 Limits for Air Contaminants (29 CFR 1910.1000) ValueType FormComponents PEL 2400 mg/m3Acetone (CAS 67-64-1) 1000 ppm PEL 200 mg/m3Cyclohexanone (CAS 108-94-1) 50 ppm PEL 590 mg/m3Furan, Tetrahydro- (CAS 109-99-9) 200 ppm PEL 590 mg/m3Methyl ethyl ketone (CAS 78-93-3) 200 ppm PEL 5 mg/m3 Respirable fraction.Polyvinyl chloride (CAS 9002-86-2) 15 mg/m3 Total dust. PVC Regular Clear Cement SDS US 927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 3 / 10 US. ACGIH Threshold Limit Values ValueType FormComponents STEL 750 ppmAcetone (CAS 67-64-1) TWA 500 ppm STEL 50 ppmCyclohexanone (CAS 108-94-1) TWA 20 ppm STEL 100 ppmFuran, Tetrahydro- (CAS 109-99-9) TWA 50 ppm STEL 300 ppmMethyl ethyl ketone (CAS 78-93-3) TWA 200 ppm TWA 1 mg/m3 Respirable fraction.Polyvinyl chloride (CAS 9002-86-2) US. NIOSH: Pocket Guide to Chemical Hazards ValueTypeComponents TWA 590 mg/m3Acetone (CAS 67-64-1) 250 ppm TWA 100 mg/m3Cyclohexanone (CAS 108-94-1) 25 ppm STEL 735 mg/m3Furan, Tetrahydro- (CAS 109-99-9) 250 ppm TWA 590 mg/m3 200 ppm STEL 885 mg/m3Methyl ethyl ketone (CAS 78-93-3) 300 ppm TWA 590 mg/m3 200 ppm Biological limit values ACGIH Biological Exposure Indices Value Sampling TimeDeterminant SpecimenComponents 50 mg/l Acetone Urine *Acetone (CAS 67-64-1) 80 mg/l 1,2-Cyclohexanediol,with hydrolysis Urine *Cyclohexanone (CAS 108-94-1) 8 mg/l Cyclohexanol, with hydrolysis Urine * 2 mg/l Tetrahydrofura n Urine *Furan, Tetrahydro- (CAS 109-99-9) 2 mg/l MEK Urine *Methyl ethyl ketone (CAS 78-93-3) * - For sampling details, please see the source document. Exposure guidelines US - California OELs: Skin designation Cyclohexanone (CAS 108-94-1)Can be absorbed through the skin. US - Minnesota Haz Subs: Skin designation applies Cyclohexanone (CAS 108-94-1)Skin designation applies. US - Tennessee OELs: Skin designation Cyclohexanone (CAS 108-94-1)Can be absorbed through the skin. US ACGIH Threshold Limit Values: Skin designation Cyclohexanone (CAS 108-94-1)Can be absorbed through the skin. Furan, Tetrahydro- (CAS 109-99-9)Can be absorbed through the skin. US. NIOSH: Pocket Guide to Chemical Hazards Cyclohexanone (CAS 108-94-1)Can be absorbed through the skin. SDS USPVC Regular Clear Cement 927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 4 / 10 Explosion-proof general and local exhaust ventilation. Good general ventilation (typically 10 air changes per hour) should be used. Ventilation rates should be matched to conditions. If applicable, use process enclosures, local exhaust ventilation, or other engineering controls to maintain airborne levels below recommended exposure limits. If exposure limits have not been established, maintain airborne levels to an acceptable level. Eye wash facilities and emergency shower must be available when handling this product. Appropriate engineering controls Individual protection measures, such as personal protective equipment Face shield is recommended. Wear safety glasses with side shields (or goggles).Eye/face protection Skin protection Wear appropriate chemical resistant gloves.Hand protection Wear appropriate chemical resistant clothing.Other If engineering controls do not maintain airborne concentrations below recommended exposure limits (where applicable) or to an acceptable level (in countries where exposure limits have not been established), an approved respirator must be worn. Respiratory protection Wear appropriate thermal protective clothing, when necessary.Thermal hazards When using, do not eat, drink or smoke. Always observe good personal hygiene measures, such as washing after handling the material and before eating, drinking, and/or smoking. Routinely wash work clothing and protective equipment to remove contaminants. General hygiene considerations 9. Physical and chemical properties Appearance Liquid.Physical state Translucent liquid.Form Clear.Color Solvent.Odor Odor threshold Not available. pH Not available. Melting point/freezing point Not available. Initial boiling point and boiling range 151 °F (66.11 °C) Flash point -4.0 °F (-20.0 °C) Evaporation rate 5.5 - 8 Not available.Flammability (solid, gas) Upper/lower flammability or explosive limits Flammability limit - lower (%) 1.8 Flammability limit - upper (%) 11.8 Explosive limit - lower (%)Not available. Explosive limit - upper (%)Not available. Vapor pressure 145 mm Hg @ 20 C Vapor density 2.5 Relative density 0.9 +/- 0.02 Solubility(ies) Solubility (water)Negligible Partition coefficient (n-octanol/water) Not available. Auto-ignition temperature Not available. Decomposition temperature Not available. Viscosity 80 - 500 cP Other information VOC (Weight %)<510 g/l SCAQMD 1168/M316A 10. Stability and reactivity The product is stable and non-reactive under normal conditions of use, storage and transport.Reactivity SDS USPVC Regular Clear Cement 927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 5 / 10 Material is stable under normal conditions.Chemical stability No dangerous reaction known under conditions of normal use.Possibility of hazardous reactions Avoid heat, sparks, open flames and other ignition sources. Avoid temperatures exceeding the flash point. Contact with incompatible materials.Conditions to avoid Acids. Strong oxidizing agents. Ammonia. Amines. Isocyanates. Caustics.Incompatible materials No hazardous decomposition products are known.Hazardous decomposition products 11. Toxicological information Information on likely routes of exposure Inhalation May be fatal if swallowed and enters airways. Headache. Nausea, vomiting. May cause irritation to the respiratory system. Vapors have a narcotic effect and may cause headache, fatigue, dizziness and nausea. Prolonged inhalation may be harmful. Skin contact Causes skin irritation. Eye contac Causes serious eye irritation. Ingestion May be fatal if swallowed and enters airways. Harmful if swallowed. Harmful if swallowed. Droplets of the product aspirated into the lungs through ingestion or vomiting may cause a serious chemical pneumonia. Symptoms related to the physical, chemical and toxicological characteristics Irritation of nose and throat. Aspiration may cause pulmonary edema and pneumonitis. Severe eye irritation. Symptoms may include stinging, tearing, redness, swelling, and blurred vision. May cause respiratory irritation. Skin irritation. May cause redness and pain. Symptoms of overex osure ma be headache, dizziness, tiredness, nausea and vomitin . Information on toxicological effects Acute toxicit May be fatal if swallowed and enters airways. Narcotic effects. May cause respiratory irritation. Test ResultsComponentsSpecies Acetone (CAS 67-64-1) LD50 Rabbit Dermal Acute 20 ml/kg LC50 Rat Inhalation 50 mg/l, 8 Hours LD50 Rat Oral 5800 mg/kg Cyclohexanone (CAS 108-94-1) LD50 Rabbit Dermal Acute 948 mg/kg LC50 Rat Inhalation 8000 ppm, 4 hours LD50 Rat Oral 1540 mg/kg * Estimates for product may be based on additional component data not shown. Causes skin irritation.Skin corrosion/irritation Causes serious eye irritation.Serious eye damage/eye irritation Respiratory or skin sensitization Respiratory sensitization Not available. This product is not expected to cause skin sensitization.Skin sensitization No data available to indicate product or any components present at greater than 0.1% are mutagenic or genotoxic.Germ cell mutagenicity SDS USPVC Regular Clear Cement 927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 6 / 10 Carcinogenicity In 2012 USEPA Integrated Risk Information System (IRIS) reviewed a two species inhalation lifetime study on THF conducted by NTP (1998). Male rats developed renal tumors and female mice developed liver tumors while neither the female rats nor the male mice showed similar results. Because the carcinogenic mechanisms could not be identified clearly in either species for either tumor, the EPA determined that the male rat and female mouse findings are relevant to the assessment of carcinogenic potential in humans. Therefore, the IRIS review concludes that these data in aggregate indicate that there is "suggestive evidence of carcinogenic potential" following exposure to THF by all routes of exposure. IARC Monographs. Overall Evaluation of Carcinogenicity Cyclohexanone (CAS 108-94-1) 3 Not classifiable as to carcinogenicity to humans. Polyvinyl chloride (CAS 9002-86-2) 3 Not classifiable as to carcinogenicity to humans. OSHA Specifically Regulated Substances (29 CFR 1910.1001-1050) Polyvinyl chloride (CAS 9002-86-2) Cancer This product is not expected to cause reproductive or developmental effects.Reproductive toxicity Specific target organ toxicity - single exposure Narcotic effects. May cause drowsiness and dizziness. Respiratory tract irritation. Specific target organ toxicity - repeated exposure Not classified. Aspiration hazard May be fatal if swallowed and enters airways. Chronic effects Prolonged inhalation may be harmful. 12. Ecological information The product is not classified as environmentally hazardous. However, this does not exclude the possibility that large or frequent spills can have a harmful or damaging effect on the environment. Ecotoxicity Components Test ResultsSpecies Acetone (CAS 67-64-1) Aquatic LC50Fish > 100 mg/l, 96 hoursFathead minnow (Pimephales promelas) * Estimates for product may be based on additional component data not shown. Cyclohexanone (CAS 108-94-1) Aquatic LC50Fish 481 - 578 mg/l, 96 hoursFathead minnow (Pimephales promelas) No data is available on the degradability of this product.Persistence and degradability No data available.Bioaccumulative potential Partition coefficient n-octanol / water (log Kow) Acetone (CAS 67-64-1)-0.24 Cyclohexanone (CAS 108-94-1)0.81 Furan, Tetrahydro- (CAS 109-99-9)0.46 Methyl ethyl ketone (CAS 78-93-3)0.29 No data available.Mobility in soil Other adverse effects No other adverse environmental effects (e.g. ozone depletion, photochemical ozone creation potential, endocrine disruption, global warming potential) are expected from this component. 13. Disposal considerations Collect and reclaim or dispose in sealed containers at licensed waste disposal site. This material and its container must be disposed of as hazardous waste. Do not allow this material to drain into sewers/water supplies. Do not contaminate ponds, waterways or ditches with chemical or used container. Dispose of contents/container in accordance with local/regional/national/international regulations. Disposal instructions Dispose in accordance with all applicable regulations.Local disposal regulations The waste code should be assigned in discussion between the user, the producer and the waste disposal company. Hazardous waste code Dispose of in accordance with local regulations. Empty containers or liners may retain some product residues. This material and its container must be disposed of in a safe manner (see: Disposal instructions). Waste from residues / unused products Empty containers should be taken to an approved waste handling site for recycling or disposal. Since emptied containers may retain product residue, follow label warnings even after container is emptied. Contaminated packaging SDS USPVC Regular Clear Cement 927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 7 / 10 14. Transport information DOT UN1133UN number AdhesivesUN proper shipping name 3Class Transport hazard class(es) -Subsidiary risk 3Label(s) IIPacking group Read safety instructions, SDS and emergency procedures before handling.Special precautions for user T11, TP1, TP8, TP27Special provisions Packaging exceptions Packaging non bulk 150 201 243Packaging bulk IATA UN1133UN number AdhesivesUN proper shipping name 3Class Transport hazard class(es) -Subsidiary risk IIPacking group No.Environmental hazards 3LERG Code Read safety instructions, SDS and emergency procedures before handling.Special precautions for user IMDG UN number UN1133 ADHESIVESUN proper shipping name 3Class Transport hazard class(es) -Subsidiary risk IIPacking group Environmental hazards Marine pollutant No. EmS F-E, S-D Special precautions for user Read safety instructions, SDS and emergency procedures before handling. Not available.Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code 15. Regulatory information This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Standard, 29 CFR 1910.1200. All components are on the U.S. EPA TSCA Inventory List. US federal regulations TSCA Section 12(b) Export Notification (40 CFR 707, Subpt. D) Not regulated. OSHA Specifically Regulated Substances (29 CFR 1910.1001-1050) Polyvinyl chloride (CAS 9002-86-2)Cancer Central nervous system Liver Blood Flammability CERCLA Hazardous Substance List (40 CFR 302.4) Acetone (CAS 67-64-1)LISTED Cyclohexanone (CAS 108-94-1)LISTED Furan, Tetrahydro- (CAS 109-99-9)LISTED Methyl ethyl ketone (CAS 78-93-3)LISTED SDS USPVC Regular Clear Cement 927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 8 / 10 Superfund Amendments and Reauthorization Act of 1986 (SARA) Immediate Hazard - Yes Delayed Hazard - No Fire Hazard - Yes Pressure Hazard - No Reactivity Hazard - No Hazard categories SARA 302 Extremely hazardous substance Not listed. NoSARA 311/312 Hazardous chemical SARA 313 (TRI reporting) Not regulated. Other federal regulations Clean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPs) List Not regulated. Clean Air Act (CAA) Section 112(r) Accidental Release Prevention (40 CFR 68.130) Not regulated. Not regulated.Safe Drinking Water Act (SDWA) Drug Enforcement Administration (DEA). List 2, Essential Chemicals (21 CFR 1310.02(b) and 1310.04(f)(2) and Chemical Code Number Acetone (CAS 67-64-1)6532 Methyl ethyl ketone (CAS 78-93-3)6714 Drug Enforcement Administration (DEA). List 1 & 2 Exempt Chemical Mixtures (21 CFR 1310.12(c)) Acetone (CAS 67-64-1)35 %WV Methyl ethyl ketone (CAS 78-93-3)35 %WV DEA Exempt Chemical Mixtures Code Number Acetone (CAS 67-64-1)6532 Methyl ethyl ketone (CAS 78-93-3)6714 US state regulations US. Massachusetts RTK - Substance List Acetone (CAS 67-64-1) Cyclohexanone (CAS 108-94-1) Furan, Tetrahydro- (CAS 109-99-9) Methyl ethyl ketone (CAS 78-93-3) US. New Jersey Worker and Community Right-to-Know Act Acetone (CAS 67-64-1) Cyclohexanone (CAS 108-94-1) Furan, Tetrahydro- (CAS 109-99-9) Methyl ethyl ketone (CAS 78-93-3) Polyvinyl chloride (CAS 9002-86-2) US. Pennsylvania Worker and Community Right-to-Know Law Acetone (CAS 67-64-1) Cyclohexanone (CAS 108-94-1) Furan, Tetrahydro- (CAS 109-99-9) Methyl ethyl ketone (CAS 78-93-3) US. Rhode Island RTK Acetone (CAS 67-64-1) Cyclohexanone (CAS 108-94-1) Furan, Tetrahydro- (CAS 109-99-9) Methyl ethyl ketone (CAS 78-93-3) US. California Proposition 65 California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65): This material is not known to contain any chemicals currently listed as carcinogens or reproductive toxins. International Inventories Country(s) or region Inventory name On inventory (yes/no)* Domestic Substances List (DSL)YesCanada SDS USPVC Regular Clear Cement 927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 9 / 10 Country(s) or region Inventory name On inventory (yes/no)* *A "Yes" indicates this product complies with the inventory requirements administered by the governing country(s). "No" indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governing country(s). Toxic Substances Control Act (TSCA) Inventory NoUnited States & Puerto Rico 16. Other information, including date of preparation or last revision 05-27-2015Issue date -Revision date Version #01 Health: 2 Flammability: 3 Physical hazard: 0 HMIS® ratings NFPA ratings 02 3 The information in the sheet was written based on the best knowledge and experience currently available. Oatey Co. cannot anticipate all conditions under which this information and its product, or the products of other manufacturers in combination with its product, may be used. It is the user’s responsibility to ensure safe conditions for handling, storage and disposal of the product, and to assume liability for loss, injury, damage or expense due to improper use. Disclaimer SDS USPVC Regular Clear Cement 927170 Version #: 01 Revision date: 11-22-2017 Issue date: 05-27-2015 10 / 10 Appendix E DEQ Risk Calculator Summary Pages Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Building 1012 Worst Case Residential Scenario (Nov. 2023 Data) North Carolina Department of Environmental Quality Risk Calculator Atando Avenue 1386 Newland Road Charlotte, NC DEQ DWM Brownfields Brownfields Project No. 11037-07-060 July 2023 May 2023 EPA RSL Table Prepared By:Hart & Hickman, PC Hart & Hickman, PC North Carolina DEQ Risk Calculator Table of Contents Version Date: July 2023 Basis: May 2023 EPA RSL Table Site ID: Brownfields Project No. 11037-07-060 Exposure Unit ID: Building 1012 Worst Case Residential Scenario (Nov. 2023 Data) Form No. Input Form 1A Complete Exposure Pathways Input Form 1B Exposure Factors and Target Risks Input Form 1C Contaminant Migration Parameters Input Form 1D Sample Statistics Input Form 2A Soil Exposure Point Concentration Table Input Form 2B Groundwater Exposure Point Concentration Table Input Form 2C Surface Water Exposure Point Concentration Table Input Form 2D Soil Gas Exposure Point Concentration Table Input Form 2E Indoor Air Exposure Point Concentration Table Output Form 1A Risk for Individual Pathways Output Form 1B Sitewide Risk Output Form 2A Resident Soil Output Form 2B Resident Groundwater Use Output Form 2C Non-Residential Worker Soil Output Form 2D Non-Residential Worker Groundwater Use Output Form 2E Construction Worker Soil Output Form 2F Recreator/Trespasser Soil Output Form 2G Recreator/Trespasser Surface Water Output Form 3A Resident Groundwater to Indoor Air Output Form 3B Resident Soil Gas to Indoor Air Output Form 3C Resident Indoor Air Output Form 3D Non-Residential Worker Groundwater to Indoor Air Output Form 3E Non-Residential Worker Soil Gas to Indoor Air Output Form 3F Non-Residential Worker Indoor Air Output Form 4A Soil to Groundwater - Forward Mode Output Form 4B Groundwater to Groundwater - Forward Mode Output Form 4C Soil to Surface Water - Forward Mode Output Form 4D Groundwater to Surface Water - Forward Mode Output Form 4E Soil to Groundwater - Backward Mode Output Form 4F Groundwater to Groundwater - Backward Mode Output Form 4G Soil to Surface Water - Backward Mode Output Form 4H Groundwater to Surface Water - Backward Mode Output Section 4 - Contaminant Migration Worksheets Output Section 3 - Vapor Intrusion Calculators TOC Description DATA INPUT SHEETS Check box if included Input Section 1 - Exposure Pathways & Parameters Input Section 2 - Exposure Point Concentrations DATA OUTPUT SHEETS Output Section 1 - Summary Output for All Calculators Output Section 2 - Direct Contact Soil and Groundwater Calculators North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: July 2023 Basis: May 2023 EPA RSL Table Site ID: Brownfields Project No. 11037-07-060 Exposure Unit ID: Building 1012 Worst Case Residential Scenario (Nov. 2023 Data) 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: July 2023 Basis: May 2023 EPA RSL Table Site ID: Brownfields Project No. 11037-07-060 Exposure Unit ID: Building 1012 Worst Case Residential Scenario (Nov. 2023 Data) 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 39,100 E, SSV-1012-B 67-64-1 Acetone ug/m3 2.94 MDL, SSV-1012-B/DUP/D 100-44-7 Benzyl Chloride ug/m3 3 MDL, SSV-1012-B/DUP/D 75-27-4 Bromodichloromethane ug/m3 6.53 MDL, SSV-1012-B/DUP/D 106-99-0 Butadiene, 1,3-ug/m3 6.04 J, SSV-1012-D 75-15-0 Carbon Disulfide ug/m3 13.1 J, SSV-1012-D 74-87-3 Chloromethane ug/m3 3.02 MDL, SSV-1012-B/DUP/D 106-93-4 Dibromoethane, 1,2-ug/m3 113,000 E, SSV-1012-D 109-99-9 ~Tetrahydrofuran ug/m3 6.62 MDL, SSV-1012-B/DUP/D 87-68-3 Hexachlorobutadiene ug/m3 101 SSV-1012-D 67-63-0 Isopropanol ug/m3 7,710 SS-1012-B 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3 3.66 MDL, SSV-1012-B/DUP/D 91-20-3 ~Naphthalene ug/m3 2.08 MDL, SSV-1012-B/DUP/D 79-34-5 Tetrachloroethane, 1,1,2,2-ug/m3 184 SSV-1012-D 108-88-3 Toluene ug/m3 111 SSV-1012-B 120-82-1 Trichlorobenzene, 1,2,4-ug/m3 1.75 MDL, SSV-1012-B/DUP/D 79-00-5 Trichloroethane, 1,1,2-ug/m3 7.99 J, SS-1012-B 108-38-3 Xylene, m-ug/m3 7.99 J, SS-1012-B 1330-20-7 Xylenes 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: July 2023 Basis: May 2023 EPA RSL Table Site ID: Brownfields Project No. 11037-07-060 Exposure Unit ID: Building 1012 Worst Case Residential Scenario (Nov. 2023 Data) Receptor Pathway Carcinogenic Ris 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 Ris Hazard Index Risk exceeded? Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 2.9E-05 3.8E+00 YES 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 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: 3. NM = Not modeled, user did not check this pathway as complete. 4. NC = Pathway not calculated, required contaminant migration parameters were not entered. 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? North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Resident Soil Gas to Indoor Air Version Date: July 2023 Basis: May 2023 EPA RSL Table Site ID: Brownfields Project No. 11037-07-060 Exposure Unit ID: Building 1012 Worst Case Residential Scenario (Nov. 2023 Data) 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 39100 1173 - - 100-44-7 Benzyl Chloride 2.94 0.0882 5.7E-02 2.1E-01 1.5E-06 8.5E-02 75-27-4 Bromodichloromethane 3 0.09 7.6E-02 -1.2E-06 106-99-0 Butadiene, 1,3- 6.53 0.1959 9.4E-02 4.2E-01 2.1E-06 9.4E-02 75-15-0 Carbon Disulfide 6.04 0.1812 - 1.5E+02 2.5E-04 74-87-3 Chloromethane 13.1 0.393 - 1.9E+01 4.2E-03 106-93-4 Dibromoethane, 1,2- 3.02 0.0906 4.7E-03 1.9E+00 1.9E-05 9.7E-03 109-99-9 ~Tetrahydrofuran 113000 3390 - 4.2E+02 1.6E+00 87-68-3 Hexachlorobutadiene 6.62 0.1986 1.3E-01 -1.6E-06 67-63-0 Isopropanol 101 3.03 - 4.2E+01 1.5E-02 78-93-3 Methyl Ethyl Ketone (2-Butanone) 7710 231.3 - 1.0E+03 4.4E-02 91-20-3 ~Naphthalene 3.66 0.1098 8.3E-02 6.3E-01 1.3E-06 3.5E-02 79-34-5 Tetrachloroethane, 1,1,2,2- 2.08 0.0624 4.8E-02 -1.3E-06 108-88-3 Toluene 184 5.52 - 1.0E+03 1.1E-03 120-82-1 Trichlorobenzene, 1,2,4- 111 3.33 - 4.2E-01 1.6E+00 79-00-5 Trichloroethane, 1,1,2- 1.75 0.0525 1.8E-01 4.2E-02 3.0E-07 2.5E-01 108-38-3 Xylene, m- 7.99 0.2397 - 2.1E+01 2.3E-03 1330-20-7 Xylenes 7.99 0.2397 - 2.1E+01 2.3E-03 Cumulative: 2.9E-05 3.8E+00 All concentrations are in ug/m3 Output Form 3B Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Prepared By:Hart & Hickman, PC Hart & Hickman, PC Building 1012 Worst Case Residential Scenario (April 2024 Data) North Carolina Department of Environmental Quality Risk Calculator Atando - Double Oaks 1386 Newland Road, Charlotte, NC Brownfields Redevelopment Section 11037-07-060 February 2024 November 2023 EPA RSL Table North Carolina DEQ Risk Calculator Table of Contents Version Date: February 2024 Basis: November 2023 EPA RSL Table Site ID: 11037-07-060 Exposure Unit ID: Building 1012 Worst Case Residential Scenario (April 2024 Data) Form No. Input Form 1A Complete Exposure Pathways Input Form 1B Exposure Factors and Target Risks Input Form 1C Contaminant Migration Parameters Input Form 1D Sample Statistics Input Form 2A Soil Exposure Point Concentration Table Input Form 2B Groundwater Exposure Point Concentration Table Input Form 2C Surface Water Exposure Point Concentration Table Input Form 2D Soil Gas Exposure Point Concentration Table Input Form 2E Indoor Air Exposure Point Concentration Table Output Form 1A Risk for Individual Pathways Output Form 1B Sitewide Risk Output Form 2A Resident Soil Output Form 2B Resident Groundwater Use Output Form 2C Non-Residential Worker Soil Output Form 2D Non-Residential Worker Groundwater Use Output Form 2E Construction Worker Soil Output Form 2F Recreator/Trespasser Soil Output Form 2G Recreator/Trespasser Surface Water Output Form 3A Resident Groundwater to Indoor Air Output Form 3B Resident Soil Gas to Indoor Air Output Form 3C Resident Indoor Air Output Form 3D Non-Residential Worker Groundwater to Indoor Air Output Form 3E Non-Residential Worker Soil Gas to Indoor Air Output Form 3F Non-Residential Worker Indoor Air Output Form 4A Soil to Groundwater - Forward Mode Output Form 4B Groundwater to Groundwater - Forward Mode Output Form 4C Soil to Surface Water - Forward Mode Output Form 4D Groundwater to Surface Water - Forward Mode Output Form 4E Soil to Groundwater - Backward Mode Output Form 4F Groundwater to Groundwater - Backward Mode Output Form 4G Soil to Surface Water - Backward Mode Output Form 4H Groundwater to Surface Water - Backward Mode Output Section 4 - Contaminant Migration Worksheets Output Section 3 - Vapor Intrusion Calculators TOC Description DATA INPUT SHEETS Check box if included Input Section 1 - Exposure Pathways & Parameters Input Section 2 - Exposure Point Concentrations DATA OUTPUT SHEETS Output Section 1 - Summary Output for All Calculators Output Section 2 - Direct Contact Soil and Groundwater Calculators North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: February 2024 Basis: November 2023 EPA RSL Table Site ID: 11037-07-060 Exposure Unit ID: Building 1012 Worst Case Residential Scenario (April 2024 Data 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: February 2024 Basis: November 2023 EPA RSL Table Site ID: 11037-07-060 Exposure Unit ID: Building 1012 Worst Case Residential Scenario (April 2024 Data) 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 832 SS-1012-D 67-64-1 Acetone ug/m3 0.469 J, SS-1012-DUP 71-43-2 Benzene ug/m3 0.713 J,B, SS-1012-DUP 75-15-0 Carbon Disulfide ug/m3 1.24 J, SS-1012-B 67-66-3 Chloroform ug/m3 0.526 J, SS-1012-DUP 74-87-3 Chloromethane ug/m3 1.91 J, SS-1012-B 110-82-7 Cyclohexane ug/m3 2.42 J, SS-1012-DUP 75-71-8 Dichlorodifluoromethane ug/m3 1.84 SS-1012-D 141-78-6 Ethyl Acetate ug/m3 0.577 J, SS-1012-DUP 100-41-4 Ethylbenzene ug/m3 2410 SS-1012-D 109-99-9 ~Tetrahydrofuran ug/m3 21.8 SS-1012-D 67-63-0 Isopropanol ug/m3 231 SS-1012-D 78-93-3 Methyl Ethyl Ketone (2-Butanone)ug/m3 0.778 J, SS-1012-DUP 75-09-2 Methylene Chloride ug/m3 0.353 J, SS-1012-DUP 100-42-5 Styrene ug/m3 1.26 J, SS-1012-D 127-18-4 Tetrachloroethylene ug/m3 2.72 SS-1012-DUP 108-88-3 Toluene ug/m3 1.88 J, SS-1012-DUP 75-69-4 Trichlorofluoromethane ug/m3 1.66 J, SS-1012-D 95-63-6 Trimethylbenzene, 1,2,4-ug/m3 0.565 J, SS-1012-D 108-67-8 Trimethylbenzene, 1,3,5-ug/m3 2.47 J, SS-1012-D 108-38-3 Xylene, m-ug/m3 1.35 J, SS-1012-D 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: February 2024 Basis: November 2023 EPA RSL Table Site ID: 11037-07-060 Exposure Unit ID: Building 1012 Worst Case Residential Scenario (April 2024 Data) Receptor Pathway Carcinogenic Ris 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 Ris Hazard Index Risk exceeded? Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 3.6E-07 4.5E-02 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, user did not check this pathway as complete. 4. NC = Pathway not calculated, required contaminant migration parameters were not entered. 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: February 2024 Basis: November 2023 EPA RSL Table Site ID: 11037-07-060 Exposure Unit ID: Building 1012 Worst Case Residential Scenario (April 2024 Data) 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 832 24.96 - - 71-43-2 Benzene 0.469 0.01407 3.6E-01 6.3E+00 3.9E-08 4.5E-04 75-15-0 Carbon Disulfide 0.713 0.02139 - 1.5E+02 2.9E-05 67-66-3 Chloroform 1.24 0.0372 1.2E-01 2.0E+01 3.0E-07 3.6E-04 74-87-3 Chloromethane 0.526 0.01578 - 1.9E+01 1.7E-04 110-82-7 Cyclohexane 1.91 0.0573 - 1.3E+03 9.2E-06 75-71-8 Dichlorodifluoromethane 2.42 0.0726 - 2.1E+01 7.0E-04 141-78-6 Ethyl Acetate 1.84 0.0552 - 1.5E+01 7.6E-04 100-41-4 Ethylbenzene 0.577 0.01731 1.1E+00 2.1E+02 1.5E-08 1.7E-05 109-99-9 ~Tetrahydrofuran 2410 72.3 - 4.2E+02 3.5E-02 67-63-0 Isopropanol 21.8 0.654 - 4.2E+01 3.1E-03 78-93-3 Methyl Ethyl Ketone (2-Butanone) 231 6.93 - 1.0E+03 1.3E-03 75-09-2 Methylene Chloride 0.778 0.02334 1.0E+02 1.3E+02 2.3E-10 3.7E-05 100-42-5 Styrene 0.353 0.01059 - 2.1E+02 1.0E-05 127-18-4 Tetrachloroethylene 1.26 0.0378 1.1E+01 8.3E+00 3.5E-09 9.1E-04 108-88-3 Toluene 2.72 0.0816 - 1.0E+03 1.6E-05 75-69-4 Trichlorofluoromethane 1.88 0.0564 - - 95-63-6 Trimethylbenzene, 1,2,4- 1.66 0.0498 - 1.3E+01 8.0E-04 108-67-8 Trimethylbenzene, 1,3,5- 0.565 0.01695 - 1.3E+01 2.7E-04 108-38-3 Xylene, m- 2.47 0.0741 - 2.1E+01 7.1E-04 95-47-6 Xylene, o- 1.35 0.0405 - 2.1E+01 3.9E-04 Cumulative: 3.6E-07 4.5E-02 All concentrations are in ug/m3 Output Form 3B Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator