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Home My WebLink About25037_National Welders Supply Building B VIMS Install Report_20240402 #C-1269 Engineering #C-245 Geology VIMS Installation Completion Report The Perch – Building B National Welders Supply Gesco Street and State Street Charlotte, North Carolina Brownfields Project No. 25035-21-060 April 2, 2024 H&H Job No. RMR-013 i https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx VIMS Installation Completion Report The Perch – Building B Charlotte, North Carolina Brownfields Project No. 25035-21-060 H&H Job No. RMR-013 Table of Contents 1.0 Introduction .............................................................................................................................1 2.0 VIMS Installation and Influence Testing Activities ............................................................4 2.1 VIMS Installation..................................................................................................................4 2.2 VIMS Influence Testing .......................................................................................................6 3.0 Pre-Occupancy VIMS Effectiveness Sampling ....................................................................8 3.1 Sub-Slab Soil Vapor Sampling .............................................................................................8 3.2 Indoor Air Sampling ...........................................................................................................11 4.0 Summary and Conclusions ..................................................................................................14 List of Tables Table 1 Summary of Sub-Slab Soil Vapor Analytical Results Table 2 Summary of Indoor Air Analytical Results List of Figures Figure 1 Site Location Map Figure 2 Site Map ii https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx List of Appendices Appendix A Historical Summary Tables and Figures Appendix B VIMS As-Built Drawings (VM-1, VM-1A, VM-1B, VM-2, and VM-3) Appendix C VIMS Product Specifications Appendix D Installation Inspection Photographs and Inspection Log Appendix E Field Forms Appendix F Laboratory Analytical Reports Appendix G DEQ Risk Calculators 1 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx VIMS Installation Completion Report The Perch – Building B Charlotte, North Carolina Brownfields Project No. 25035-21-060 H&H Job No. RMR-013 1.0 Introduction On behalf of RRPVI Gesco Charlotte LP (the Prospective Developer or PD), Hart & Hickman, PC (H&H) has prepared this report to document vapor intrusion mitigation system (VIMS) installation inspections, VIMS influence testing, and VIMS efficacy sampling activities completed for Building B at the Perch Apartments, a multi-family apartment development at the National Welders Supply Brownfields Property (Brownfields Project No. 25035-21-060) located at Gesco Street and State Street in Charlotte, Mecklenburg County, North Carolina (Site). A Site location map is included as Figure 1, and the Site and surrounding area are shown in Figure 2. Redevelopment of the Site is in progress and includes two multi-story high-density apartment buildings (Building A and Building B) with associated amenity areas, access drives, and surface parking lots. This report documents the VIMS installation for Building B only. A report documenting VIMS installation activities for Building A will be submitted under separate cover. The foundation of the buildings consists of thickened footers supported by sub-grade piles and pile caps. Structural footers are located below load-bearing walls located on the ground floor and thickened slabs are at other non-bearing locations including interior ramps. Building A includes two areas identified as Building A (left) and Building A (right) which are located on the portion of the Site to the west of the Gesco Street and State Street intersection. Building B is located to the east of Gesco Street, at the northeast corner of Gesco Street and State Street. The approximate square footage of the slab on grade components of each building is provided below:  The slab-on-grade footprint for Building A is approximately 28,600 square feet (sq ft).  The slab-on-grade footprint for Building B is approximately 10,300 sq ft. 2 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx The VIMS installation activities were conducted to address potential environmental concerns associated with historical on-Site and nearby off-Site operations that were identified during previous assessment activities. To address potential environmental concerns, the Site was entered into the North Carolina Department of Environmental Quality (DEQ) Brownfields Redevelopment Section and received eligibility in a letter dated October 18, 2021, and an amended eligibility letter on July 28, 2022, following adding land to the originally proposed Brownfields property. Previous Site assessment activities included soil, groundwater, and soil gas sampling activities, and identified the presence of petroleum-related compounds and chlorinated solvents at concentrations above applicable screening levels at the Site. In particular, trichloroethylene (TCE) was identified in soil and soil gas in the area of the former National Welders Supply facility located near the northern Site boundary along State Street, west of Gesco Street. Summary tables and figures depicting previous sample locations are included in Appendix A. To address the TCE soil source area identified at the Site, H&H prepared a Soil Excavation Work Plan, dated August 11, 2022, which was approved by DEQ Brownfields to remove the TCE soil source during redevelopment activities and replace the impacted soil with clean fill. The soil excavation activities were completed between October 24 and November 9, 2022, and were documented in the Soil Excavation Report, dated June 7, 2023. Post-excavation soil samples indicated that TCE-impacted soil was adequately removed to unrestricted use levels protective of human health, and post-excavation soil gas samples indicated approximately 99% reductions in TCE soil gas concentrations. Based on the results of previous assessment activities completed at the Site and the removal of the TCE source, it was determined that potential structural vapor intrusion at the Site could be mitigated through the installation of a VIMS during the construction of the multi-family apartment buildings. A Vapor Intrusion Mitigation Plan (VIMP), dated December 7, 2022, was prepared for the Site and was approved by DEQ in a letter dated December 9, 2022. The VIMP includes the installation of an active mitigation system for Building A (left), which is near the former TCE soil source, and passive mitigation systems for Building A (right) and Building B. 3 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx This report documents installation and associated testing of the VIMS for Building B of the multi- family apartment complex. A discussion of VIMS installation and influence testing activities is provided in Section 2.0; a summary of VIMS effectiveness sampling activities is provided in Section 3.0, and a summary and conclusions based on the results of the VIMS installation and effectiveness testing are provided in Section 4.0. 4 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx 2.0 VIMS Installation and Influence Testing Activities The Site redevelopment plan includes two multi-family residential apartment buildings, and this report only documents the VIMS install for Building B. Sub-slab venting systems were installed below the slab-on-grade portion of Building B and include a permeable gravel layer, sub-slab vapor collection piping, vapor barrier, vertical riser piping, and passive turbine ventilators. The as- built system specifications and details (VM-1, VM-1A, VM-1B, and VM-2) and as-built drawings depicting the layout of the VIMS (VM-3) are provided in Appendix B. Product specifications for the VIMS components are included in Appendix C, and installation photographs and the VIMS inspection log are included in Appendix D. As noted above, the VIMS installation and efficacy testing for Building A, as outlined on VM-3, have not been completed and the VIMS installation for these areas will be documented under a separate cover and submitted to DEQ prior to occupancy. 2.1 VIMS Installation During installation of the VIMS, H&H conducted inspections during various phases of construction to confirm the VIMS was installed in general accordance with the DEQ-approved VIMP. Inspections were completed during the following phases of installation: (1) Inspection of the base course gravel layer, sub-slab piping layout, and monitoring points prior to installation of the vapor barrier; (2) Inspection of the vapor barrier prior to pouring concrete; (3) Inspection of above-grade vertical riser piping; and (4) Inspection of ventilators and riser pipe connections. Based on observations made during the VIMS inspections and photographs of the installation activities, the VIMS was installed in general accordance with the DEQ-approved VIMP with some field modifications, as discussed below. The inspections were performed by, or under the direction of, a NC licensed engineer, and the field modifications were approved by the engineer. A brief summary of the main VIMS components and modifications to the VIMP are provided in the following paragraphs. 5 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx Passive sub-slab vapor extraction is achieved through an interconnected system of 3-inch Schedule (SCH) 40 PVC vapor collection/conveyance piping installed in a minimum 4-inch permeable gravel layer beneath the building. The permeable gravel layer (clean #57 stone) was installed beneath the entirety of the building to enhance sub-slab vapor transmission and allow for air movement beneath the slab. The sub-slab vapor collection piping is connected to riser piping which extends vertically through the building and discharges vapors through exhaust stacks installed above the building roof. The piping layout was modified to include additional extraction points and risers installed within the gravel layer in each stairwell (E-B1 in Stair B1 and E-B2 in Stair B2, see drawings Appendix B) to facilitate sub-slab venting of these areas. The stairwell risers were constructed with 4-inch SCH 40 PVC and 4-inch SCH 40 galvanized steel piping. Empire Model TV04SS (stainless steel) turbine ventilators were installed on the discharge end of the riser piping on the roof. Vaporblock® Plus 20 (VBP20), a vapor barrier (liner) manufactured by Viaflex Industries (Viaflex), previously known as Raven Industries, was installed above the gravel layer and beneath the concrete slab of the building. VBP20 is an ASTM-certified 20-mil, multi-layer, chemically- resistant vapor barrier, designed to prevent structural vapor intrusion of volatile organic compounds (VOCs). The vapor barrier was installed by the construction contractor to cover the slab-on-grade footprint of Building B. The exterior edges of the VBP20 were laid underneath the footings and attached and sealed to existing concrete utilizing VaporSeal™ tape and Butyl Seal double-sided tape. Seams within the building footprint have a minimum 12-inch overlap and were sealed with VaporSeal™ tape. Monitoring points were installed during construction to allow for influence testing and collection of sub-slab vapor samples. The monitoring points are constructed with 2-inch diameter SCH 40 PVC piping. The monitoring point as-built details are included on Sheet VM-1A and the locations of the monitoring points are shown on Sheets VM-3 (Appendix B). In addition to sub-slab venting, trench dams were installed as a supplemental measure to reduce potential vapor intrusion pathways. Trench dams were installed around utilities that run from the 6 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx main line outside the building footprint into the building sub-slab. Specifications for the trench dams are included on sheets VM-1A and VM-2 (Appendix B). During construction, the concrete slab was poured in both stairwells prior to inspection of the sub- slab piping and vapor barrier. The contractors removed a 3-foot by 3-foot section of the slab in each stairwell to allow H&H to confirm the presence of the gravel layer and the vapor barrier. Based on this inspection and documentation provided by the concrete contractor (see letter in Appendix D), the gravel layer and vapor barrier were installed within each stairwell. In lieu of sub- slab piping, separate extraction points and risers were installed to facilitate sub-slab venting in each stairwell. 2.2 VIMS Influence Testing Influence testing was performed to evaluate the vacuum communication beneath Building B and to document that sufficient sub-slab depressurization can be achieved should electric fans be needed in the future. H&H completed influence testing on January 18, 2024, and February 1, 2024. The January influence test was performed prior to installation of the extraction points and risers in the stairwells, and the February test was conducted after installation of the stairwell risers. DEQ considers 4 Pascals (Pa) or 0.016 inches water column (in-WC) differential pressure to be the minimum vacuum needed for an active depressurization system to effectively treat potential structural vapor intrusion. The influence testing was completed using AMG Eagle Extreme fans to model an active depressurization system. Differential pressure measurements were collected at each vacuum monitoring point using a Dwyer series 475 Mark III digital manometer (capable of measuring to 0.001 in-WC or 0.25 Pa) to establish baseline conditions prior to operation of the Eagle Extreme fans. Following collection of baseline differential pressure measurements, the electric fans were turned on and differential pressure measurements were collected at each monitoring point. Results of the January and February 2024 influence tests indicated final vacuum measurements ranging from 0.042 in-WC to 0.615 in-WC (10 Pa to 153 Pa) in each of the monitoring points. These results indicate adequate connectivity between the risers and the sub-slab annular space. 7 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx The results also demonstrate that adequate sub-slab communication with vacuum influence greater than 0.016 in-WC (4 Pa) is achievable throughout Building B should active sub-slab depressurization be warranted in the future. The locations of the monitoring points are shown on Sheet VM-3 (Appendix B), and the pilot test results are included as Appendix E-1. 8 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx 3.0 Pre-Occupancy VIMS Effectiveness Sampling Following installation of the VIMS, completion of successful influence testing, and general enclosure of the building envelope, H&H collected sub-slab soil vapor and indoor air samples for laboratory analysis in accordance with the DEQ-approved VIMP. Three (3) sub-slab soil gas samples were collected from select monitoring points in Building B, and two (2) indoor air samples were collected concurrent with the sub-slab soil gas samples. The sub-slab soil gas and indoor air assessment activities were conducted in general accordance with the DEQ-approved VIMP and the DEQ Division of Waste Management (DWM) Vapor Intrusion Guidance (Guidance) dated March 2018. Details of the sub-slab soil gas and indoor air sampling activities and results are provided in the following sections. 3.1 Sub-Slab Soil Vapor Sampling Sub-Slab Soil Vapor Sampling Methodology On February 16, 2024, sub-slab soil vapor samples were collected from monitoring points MP-14, MP-16, and MP-17. In addition, one duplicate sub-slab soil vapor sample (MP-DUP) was collected for quality assurance/quality control (QA/QC) purposes. The duplicate was collected from parent sample location MP-17 using a laboratory-supplied stainless-steel sampling “T” which allows for the simultaneous collection of two sub-slab soil vapor samples from a single monitoring point. The sub-slab soil vapor sample locations are shown on VM-3 in Appendix B. To collect the sub-slab soil vapor samples, Teflon sample tubing was secured to a 2-inch expandable well cap with a sampling port that was secured on each 2-inch diameter PVC monitoring point. The tubing was connected to a laboratory-supplied airflow regulator and batch-certified 1-liter stainless steel Summa canister using a nut and ferrule assembly to create an air-tight seal. The air flow regulator was preset by the laboratory to collect a sub-slab soil vapor sample at a flow rate no greater than approximately 100 milliliters per minute. 9 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx Prior to sample collection, H&H conducted a leak test at each monitoring point by placing a shroud around the monitoring point and sampling train including the Summa canister. The air within the shroud was flooded with helium and concentrations were measured with a calibrated helium detector. Helium concentrations within the shroud were maintained between approximately 10% and 12%. A GilAir vacuum pump was connected to the sample tubing outside of the shroud and used to purge a minimum of three volumes into a Tedlar® bag at each sampling point. The helium 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 short-circuiting at the monitoring points or within the sampling train was not present. Sub-slab soil vapor sample field forms completed by sampling personnel are included in Appendix E. Following a successful leak check, the air flow regulators were opened to allow collection of the sub-slab soil vapor samples. Vacuum in the Summa canisters was monitored during the sampling event to confirm adequate sample volume was collected at each monitoring point. 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 VOCs by EPA Method TO-15. Sub-Slab Soil Vapor Sampling Results The sub-slab soil vapor sample analytical results are summarized in Table 1 and are compared to the DEQ Residential Vapor Intrusion Sub-slab and Exterior Soil Gas Screening Levels (SGSLs) dated February 2024. The laboratory analytical report and the chain of custody record are provided in Appendix F. Laboratory analytical results for Building B indicate the presence of several compounds at concentrations above laboratory method detection limits (MDLs) in the sub-slab soil vapor samples. Only one compound, tetrahydrofuran (29,000 µg/m3), was detected at a concentration above the DEQ Residential SGSLs at one sample location (MP-14). Tetrahydrofuran is a 10 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx compound typically found in PVC primer and glue, and the detection is attributable to recent repairs to the monitoring point and the nearby riser E-B1. No other compounds were detected at concentrations above the Residential SGSLs. In addition, TCE was not detected in the sub-slab soil vapor samples at concentrations above laboratory MDLs. Sub-Slab Soil Vapor Risk Evaluation The DEQ Vapor Intrusion SGSLs are conservative and based on a target carcinogenic risk (TCR) 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 carcinogenic risk (LICR) of 1 x 10-4 or less, and the acceptable level for non-carcinogenic risks is a cumulative hazard index (HI) of 1.0 or less. The HI is the sum of hazard quotients (HQs) for each target analyte detected in a sample. To further evaluate sub-slab soil vapor concentrations, H&H utilized the DEQ Risk Calculator (February 2024) to calculate cumulative potential vapor intrusion risks for each building. H&H modeled a worst-case scenario for Building B by using the highest concentrations of any compound detected below the slab of each building. Based on the planned uses of the building, H&H calculated risks for a residential use scenario. The calculated cumulative LICR and HI values are provided in Table 1, and copies of the completed DEQ Risk Calculators are provided in Appendix G. As shown in Table 1, the results of the worst-case risk calculation for Building B indicate a calculated cumulative LICR of 3.7 x 10-7 and a HI value of 0.48 for a residential use scenario. Note that tetrahydrofuran (from recent use of PVC primer/glue at the Site) contributes 0.42 to the HI calculation. The calculated cumulative LICR and HI values are within the acceptable levels established by the DEQ and EPA. Thus, the sub-slab soil vapor analytical results and risk calculations indicate that the VIMS is effectively minimizing the sub-slab accumulation of compounds for Building B. The detected sub-slab soil vapor concentrations do not pose an unacceptable vapor intrusion risk to the building occupants. 11 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx 3.2 Indoor Air Sampling Indoor Air Sampling Methodology From February 15 to 16, 2024, H&H collected two indoor air samples from the living space on the ground floor of Building B after the building was enclosed (all exterior doors and windows installed) and the VIMS was installed. Prior to collecting indoor air samples, H&H completed a survey within Building B to identify potential above-slab sources of VOCs. Due to the construction sequence, the heating, ventilation, and air conditioning (HVAC) system was not operational at the time of indoor air sampling; thus, there was minimal air exchange within the building. Finishing activities, such as interior and exterior painting, for Building B were ongoing; however, no activities were conducted within the units sampled immediately prior to the sampling event. H&H observed moderate vehicular use on Gesco Street and State Street and the use of heavy equipment for construction-related purposes on-Site. Copies of the indoor air building survey form and the sampling forms completed by H&H sampling personnel during the indoor air sampling event are included in Appendix E The indoor air samples were collected in general accordance with the DEQ DWM VI Guidance, using a laboratory-supplied individually-certified 6-liter Summa canister over a 24-hour period, and the samples were analyzed for a select list of VOCs by EPA Method TO-15. The select list of VOCs included compounds previously detected within Site media. For QA/QC purposes, one duplicate indoor air sample was collected with a laboratory-supplied stainless-steel sample “T” fitting, and one background ambient air sample was also collected to establish background levels of compounds in outdoor air. The location of the outdoor background air sample was determined on the day of the sampling based upon the prevailing wind direction, and the background sample was collected within approximately 15 feet of Building B. The indoor air intake for the Summa canisters was set at a height consistent with the typical breathing zone (3 to 5 ft above grade). The approximate location of the pre-occupancy indoor air samples and the background air sample are depicted on the as-built drawing, VM-3 (Appendix B). Periodic checks were conducted by H&H to monitor the pressure within the Summa canisters to confirm adequate sample volume was collected. During the sampling activities, indoor/outdoor air 12 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx pressure differential was measured several times, including the start and end of the 24-hour sampling period using a manometer sensitive to 0.001 inches of water. In addition, exterior wind speed, exterior wind direction, and indoor/outdoor temperature and humidity were recorded near the start and end of the sampling period. H&H also completed a DEQ Indoor Air Building Survey and Sampling Form (Appendix C of the DWM VI Guidance) to record sample information and building conditions at the time of sampling. The canisters were labeled with the sample identification, beginning and ending times and pressure measurements, and the requested analysis. The canisters were then placed in laboratory-supplied shipping containers and delivered to Waypoint, under standard chain of custody protocols for analysis. As indicated in the laboratory reports, J-flag estimated concentrations were reported by the laboratory. The completed field forms are included Appendix E. Indoor Air Sampling Results The indoor air sample analytical results are summarized in Table 2 and are compared to the DEQ DWM Residential Indoor Air Screening Levels (IASLs) dated February 2024. The laboratory analytical report and chain of custody record are provided in Appendix F. A brief summary of the results is provided below. Analytical results for the indoor air samples collected from Building B indicate that VOCs were detected in each sample at concentrations above laboratory MDLs. Benzene (up to 2.05 µg/m3) was detected at concentrations above the Residential SGSL of 0.36 µg/m3 in each sample. Ethylbenzene (up to 1.67 J µg/m3) was detected at concentrations above the Residential SGSL of 1.1 µg/m3 in each sample. Note that the “J-flag” designation is used by the laboratory to indicate the compound detection was above MDLs but below laboratory reporting limits; therefore, the reported value is an estimated concentration. Review of the indoor air sample analytical results indicates that benzene and ethylbenzene concentrations are generally homogenous within the building and are also present at similar concentrations in the background air sample. Comparison of the sub-slab soil vapor and indoor air data for benzene and ethylbenzene indicates lower concentrations in the sub-slab soil vapor samples compared to indoor air. Benzene and ethylbenzene are commonly found in construction 13 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx materials. As such, the detections in the indoor air samples are likely attributable to above-slab sources. No other compounds were detected above Residential SGSLs. TCE was not detected above the laboratory MDLs in the indoor air samples collected from Building B. Indoor Air Risk Evaluation The DEQ Vapor Intrusion IASLs are conservative and based on a TCR for potential carcinogenic risks of 1 x 10-6 and a HQ of 0.2 for potential non-carcinogenic risks and only apply to indoor air contaminants from structural vapor intrusion. The DEQ and EPA acceptable risk level for potential carcinogenic risks is a cumulative LICR of 1 x 10-4 or less and the acceptable level for non- carcinogenic risks is a HI of 1.0 or less. H&H utilized the DEQ Risk Calculator (February 2024) to evaluate cumulative risks associated with the detected indoor air concentrations. Risk calculations were completed for a residential use scenario, based on the planned use of Building B. A conservative, worst-case scenario was evaluated using the highest concentration of any compound detected within any Building B indoor air sample. The calculated cumulative LICR and HI values are discussed below and are summarized in Table 2. The calculated risks for a hypothetical worst-case residential scenario for Building B indicate the cumulative LICR is 7.3 x 10-6 and the HI is 0.43. Risk calculator results indicate that under a hypothetical worst-case scenario for residential use for Building B, the cumulative LICR is less than 1 x 10-4 and the cumulative HI is less than 1.0. Copies of the completed risk calculators are provided in Appendix G. Post-occupancy sampling will be conducted in accordance with the DEQ-approved VIMP to confirm indoor air concentrations remain acceptable. 14 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx 4.0 Summary and Conclusions Installation of the VIMS has been completed for Building B at the Perch Apartments constructed on a portion of the National Welders Supply Brownfields property located in Charlotte, North Carolina. Results of installation inspections, influence testing, and effectiveness sampling activities indicate that the Building B VIMS has been successfully installed in general accordance with the DEQ-approved VIMP. During construction of the Site building, H&H conducted VIMS installation inspections to confirm the system was installed as designed and completed post-installation VIMS testing activities to evaluate the efficacy of the VIMS. A brief summary of the VIMS installation and post-installation efficacy assessment activities is provided below. VIMS Installation and Influence Testing VIMS installation has been completed for Building B and consists of a passive sub-slab depressurization system with vertical extraction piping to the roof connected to wind-driven turbine ventilators. During installation of the VIMS, H&H personnel, under the direction of a North Carolina licensed Professional Engineer, conducted inspections during each stage of installation. Results of the installation inspections indicate that the VIMS was successfully installed in general accordance with the DEQ-approved VIMP. Following installation of the VIMS sub-slab piping network, H&H completed vacuum influence testing to evaluate vacuum communication beneath the slab. Final vacuum measurements collected during the influence testing activities indicate that vacuum communication beneath the slab-on- grade portions of the building was achieved with acceptable differential pressure readings. VIMS Efficacy Testing Sub-slab soil vapor assessment activities included the collection of three sub-slab soil vapor samples for laboratory analysis within the building to evaluate the effectiveness of the VIMS. Laboratory analytical results of the sub-slab soil vapor samples indicate tetrahydrofuran was detected at a concentration above the Residential SGSL at one sub-slab soil vapor sample location, 15 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx and no other compounds were detected at concentrations above the Residential Vapor Intrusion SGSLs. Tetrahydrofuran is a compound typically found in PVC primer and glue, and the detection is attributable to recent repairs to the monitoring point and the nearby riser E-B1. TCE was not detected at concentrations above the laboratory MDL in the sub-slab vapor samples. Results of the hypothetical worst-case risk calculations using the sub-slab soil vapor sample analytical results indicate acceptable cumulative risk levels for a residential-use scenario. Based on the sub-slab soil vapor data and the DEQ Risk Calculator results, the detected sub-slab soil vapor concentrations at the Site do not pose an unacceptable vapor intrusion risk. Two indoor air samples were collected from Building B to further evaluate the effectiveness of the VIMS. Laboratory analytical results of the indoor air samples indicate benzene and ethylbenzene were detected at concentrations above the DEQ Residential Vapor Intrusion IASLs at both sample locations. Benzene and ethylbenzene are commonly found in construction materials and dissipate after installation. No other compounds were detected at concentrations above the Residential IASLs. TCE was not detected at concentrations above the laboratory MDL in the Building B indoor air samples. Results of the hypothetical worst-case risk calculations using the indoor air sample laboratory analytical results indicate acceptable risk levels for a residential-use scenario. Based on the indoor air data and the DEQ Risk Calculator results, the detected indoor air concentrations at the Site do not pose an unacceptable risk. Summary Based on results of the VIMS installation inspections, influence testing, and post-installation sub- slab soil vapor and indoor air sample results, the VIMS is effectively mitigating potential vapor intrusion risks within Building B. In accordance with the DEQ-approved VIMP, a post-occupancy sub-slab soil vapor and indoor air sampling event will be completed approximately six months following the pre-occupancy sampling event. If the first post-occupancy indoor air sampling results indicate consistent or decreasing concentrations within acceptable risk levels, a request to terminate indoor air sampling will be submitted for DEQ approval. A minimum of two semi- annual post-construction sub-slab sampling events will be completed. A request to modify or terminate sub-slab sampling will be submitted to DEQ after the second post-occupancy sub-slab sampling event, if results indicate acceptable risk levels. 16 https://harthick.sharepoint.com/sites/masterfiles-1/shared documents/aaa-master projects/ram realty - rmr/rmr-013 gesco street/vims install reports/bld. b/final to deq/25037 - building b vims install report_national welders supply.docx Engineer’s Certification According to the DWM Vapor Intrusion Guidance: “Risk-based screening is used to identify sites or buildings likely to pose a health concern, to identify buildings that may warrant immediate action, to help focus site-specific investigation activities or to provide support for building mitigation and other risk management options including remediation.” In addition, the DEQ- approved VIMP was prepared to satisfy the standard vapor intrusion mitigation provisions included in the Brownfields Agreement. Per the North Carolina Brownfields Property Reuse Act 130A-310.32, a prospective developer, with the assistance of H&H for this project, is to provide DEQ with “information necessary to demonstrate that as a result of the implementation of the brownfields agreement, the brownfields property will be suitable for the uses specified in the agreement while fully protecting public health and the environment instead of being remediated to unrestricted use standards.” It is in the context of these risk-based concepts that the H&H professional engineer makes the following statement: The VIMS detailed herein was designed to mitigate intrusion of subsurface vapors into the subject buildings from known Brownfields property contaminants in a manner that is in accordance with the most recent and applicable guidelines including, but not limited to, DWM VI Guidance, Interstate Technology & Regulatory Council (ITRC) guidance, and American National Standards Institute (ANSI)/American Association of Radon Scientists and Technologists (AARST) standards. The sealing professional engineer below is satisfied that the design and its installation are fully protective of public health from known Brownfields property contaminants. Table 1 Summary of Sub-Slab Soil Vapor Analytical Results National Welders Supply Gesco Street and State Street Charlotte, North Carolina H&H Job No. RMR-013 Sample Location Screening Criteria Sample ID MP-14 MP-16 Sample Date 2/16/2024 2/16/2024 Units VOCs (TO-15) Acetone 17,800 E 354 118 152 NE Benzene <1.46 <0.733 1.09 J 1.14 J 12 Carbon Disulfide <1.22 <0.608 0.666 J, B 0.572 J, B 4,900 Dichlorodifluoromethane <2.68 4.10 J 2.45 J 2.61 700 Ethyl Acetate <2.72 <1.36 7.91 7.90 490 Ethylbenzene <2.12 <1.06 1.30 J 1.37 J 37 Heptane <2.86 <1.43 1.45 J 1.52 J 2,800 n-Hexane <0.942 <0.471 1.63 J 1.70 J 4,900 Isopropyl Alchohol 26.3 J 50.6 5.31 5.66 1,400 Methyl Ethyl Ketone (MEK)585 5,580 287 264 35,000 4-Methyl-2-Pentanone <2.42 <1.21 0.311 J 0.376 J 21,000 Methylene Chloride <9.75 5.35 J 3.04 2.84 3,400 Naphthalene <3.66 <1.83 <0.183 0.613 J 2.8 Styrene <2.48 <1.24 1.19 J 1.21 J 7,000 Tetrachloroethene <3.62 <1.81 4.56 3.90 280 Tetrahydrofuran 29,200 E 20.0 26.1 26.8 14,000 Toluene 7.01 J <0.899 5.37 5.51 35,000 Trichloroethene <3.98 <0.199 <0.199 <0.199 14 Trichlorofluoromethane <2.60 <1.30 1.54 J 1.65 J NE 1,2,4-Trimethylbenzene <2.20 <1.10 1.00 J 1.15 J 420 1,3,5-Trimethylbenzene <4.72 <2.36 <0.236 0.393 J 420 o-Xylene <3.14 <1.57 1.50 J 1.70 J 700 m,p-Xylene <4.34 3.73 J 3.95 J 4.35 J 700 Xylene (Total)<3.14 3.73 J 5.45 J 6.05 J 700 DEQ Risk Calculator(2)Accetable Risk Levels LICR (Residential)<1.0 x 10-4 Non-Carcinogenic HI (Residential)<1.0 Notes: 1) North Carolina Department of Environmental Quality (DEQ) Vapor Intrusion Sub-Slab & Exterior Soil Gas Screening Levels (SGSLs) dated February 2024. 2) DEQ Cumulative Risk Calculator dated February 2024. Concentrations are reported in micrograms per cubic meter (µg/m3). Compound concentrations are reported to the laboratory method detection limits. Laboratory analytical method is shown in parentheses. Only compounds detected in at least one sample are shown in the above table. Bold values indicate an exceedance of DEQ Residential SGSL. LICR = Lifetime Incremental Cancer Risk; HI = Hazard Index VOCs = volatile organic compounds; NE = not established J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. E = Result above calibration range. B = Compound was detected in associated laboratory blank. 3.7 x 10-7 0.48 Worst-Case Scenario Building B MP-17 / MP-DUP 2/16/2024 Residential SGSLs (1) µg/m3 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Ram Realty - RMR/RMR-013 Gesco Street/VIMS Install Reports/Bld. B/Tables/Data Tables 3/26/2024 Table 1 (Page 1 of 1) Hart & Hickman, PC Table 2 Summary of Indoor Air Analytical Results National Welders Supply Gesco Street and State Street Charlotte, North Carolina H&H Job No. RMR-013 Sample Location Screening Criteria Sample ID IAS-B1 BKG-B Sample Date 2/15/2024 2/15/2024 Units VOCs (TO-15) Acetone 145 133 130 14.5 NE Benzene 2.05 1.38 J 1.33 J 0.840 J 0.36 Carbon Disulfide 1.06 J, B 0.245 J, B <0.060 <0.060 150 Chloromethane 0.984 J 0.720 J 0.797 J 0.834 J 19 Dichlorodifluoromethane 2.49 2.36 J 2.41 J 2.40 J 21 Ethanol 25.8 19.4 20.2 7.04 B NE Ethyl Acetate 4.75 3.74 4.13 0.529 J 15 Ethylbenzene 1.67 J 1.40 J 1.41 J 0.890 J 1.1 Heptane 1.43 J 1.44 J 1.43 J 0.418 J 83 n-Hexane 1.27 J 1.60 J 1.74 J 0.525 J 150 2-Hexanone 0.954 J 0.933 J <0.285 <0.285 6.3 Isopropyl Alchohol 11.2 9.06 9.64 2.07 J, B 42 Methyl Ethyl Ketone (MEK)17.0 53.1 54.2 3.31 1,000 4-Methyl-2-Pentanone 0.380 J 0.352 J 0.307 J <0.121 630 Methylene Chloride 1.57 J 2.01 1.78 1.06 J 100 Styrene 2.42 2.38 2.51 <0.124 210 Tetrachloroethene 0.590 J 0.800 J 0.698 J <0.181 8.3 Tetrahydrofuran 72.5 57.5 57.9 1.72 420 Toluene 7.40 13.0 12.5 1.77 J, B 1,000 Trichloroethene <0.199 <0.199 <0.199 <0.199 0.42 Trichlorofluoromethane 1.46 J 1.39 J 1.44 J 1.37 J NE 1,2,4-Trimethylbenzene 1.65 J 1.42 J 1.49 J <0.110 13 1,3,5-Trimethylbenzene 0.643 J 0.506 J 0.530 J <0.236 13 o-Xylene 1.82 J 1.59 J 1.64 J 1.17 J 21 m,p-Xylene 4.74 J 4.00 J 4.16 J 3.32 J 21 Xylene (Total)6.56 J 5.59 J 5.80 J 4.49 J 21 DEQ Risk Calculator(2)Accetable Risk Levels LICR (Residential)<1.0 x 10-4 Non-Carcinogenic HI (Residential)<1.0 Notes: 1) North Carolina Department of Environmental Quality (DEQ) Vapor Intrusion Indoor Air Screening Levels (IASLs) dated February 2024. 2) DEQ Cumulative Risk Calculator dated February 2024. 3) Cumulative LICR and HI results are compared to DEQ and EPA acceptable risks levels for carcinogenic and non-carcinogenic risks. Concentrations are reported in micrograms per cubic meter (µg/m3). Compound concentrations are reported to the laboratory method detection limits. Laboratory analytical method is shown in parentheses. Only compounds detected in at least one sample are shown in the above table. Bold values indicate an exceedance of DEQ Residential IASL. LICR = Lifetime Incremental Cancer Risk; HI = Hazard Index VOCs = volatile organic compounds; NE = not established J = Compound was detected above the laboratory method detection limit, but below the laboratory reporting limit resulting in a laboratory estimated concentration. B = Compound was detected in associated laboratory blank. 7.3 x 10-6 0.43 Worst-Case Scenario µg/m3 Residential IASLs (1) Building B IAS-B2 / IAS-DUP 2/15/2024 https://harthick.sharepoint.com/sites/MasterFiles‐1/Shared Documents/AAA‐Master Projects/Ram Realty ‐ RMR/RMR‐013 Gesco Street/VIMS Install Reports/Bld. B/Tables/Data Tables 3/26/2024 Table 2 (Page 1 of 1) Hart & Hickman, PC SITE LOCATION MAP NATIONAL WELDERS SUPPLY GESCO STREET AND STATE STREET CHARLOTTE, NORTH CAROLINA DATE: 1-22-24 JOB NO: RMR-013 REVISION NO: 0 FIGURE NO. 1 2923 South Tryon Street - Suite 100 Charlotte, North Carolina 28203 704-586-0007 (p) 704-586-0373 (f) License # C-1269 / # C-245 Geology TITLE PROJECT 0 2,000 4,000 SCALE IN FEET Pa t h : S : \ A A A - M a s t e r P r o j e c t s \ R a m R e a l t y - R M R \ R M R - 0 1 3 G e s c o S t r ee t \ R e d e v e l o p m e n t R e p o r t \ 2 0 2 4 \ F i g u r e s \ R M R . 0 1 3 _ F i g u r e 1 . a p r x N U.S.G.S. QUADRANGLE MAP CHARLOTTE EAST, NORTH CAROLINA 2022 DERITA, NORTH CAROLINA 2022 QUADRANGLE 7.5 MINUTE SERIES (TOPOGRAPHIC) SITE US E R : D R A B U R N REVISION NO. 0 JOB NO. RMR-013 DATE: 1-22-24 FIGURE NO. 2 NATIONAL WELDERS SUPPLY GESCO STREET AND STATE STREET CHARLOTTE, NORTH CAROLINA SITE MAP LEGEND BROWNFIELDS PROPERTY BOUNDARY PARCEL BOUNDARY SURFACE WATER FEATURE FORMER RAILROAD 2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology SOUTHERN CONCRETE MATERIALS (715 STATE STREET) FORSHAW (650 STATE STREET) MULTI-TENANT COMMERCIAL BUILDING (800 GESCO STREET) ST E W A R T C R E E K SEVERSVILLE PARK (830 S. BRUNS AVENUE) NOTES: 1. AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2023 DUKE ENERGY RIGHT-OF-WAY GE S C O S T R E E T STATE STREET PIPED STORMWATER DRAINAGE S: \ A A A - M a s t e r P r o j e c t s \ R a m R e a l t y - R M R \ R M R - 0 1 3 G e s c o S t r e e t \ R e d e v e l o p m e n t R e p o r t \ 2 0 2 4 \ F i g u r e s \ R M R . 0 1 3 _ S I T E _ 2 0 2 4 0 1 2 2 . d w g , F I G 2 , 1 / 2 2 / 2 0 2 4 1 2 : 0 3 : 2 2 P M , d r a b u r n Appendix A Historical Summary Tables Figures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/$%25$725<(67,0$7('&21&(175$7,21 5('(9(/230(173/$129(5/$,')5206,7(3/$1 3529,'('%<%%0$5&+,7(&785( %2/' &203281'(;&(('6/67$1'$5'6 81'(5/,1( &203281'(;&(('65(6,'(17,$/ 9$325,17586,21*5281':$7(56&5((1,1* /(9(/6*:6/V ,7$/,&6 &203281'(;&(('61215(6,'(17,$/ *:6/ '8.((1(5*< 5,*+72):$< *( 6 & 2 6 7 5 ( ( 7 67$7(675((7 3,3('67250:$7(5 '5$,1$*( 70:*:'83 70: 70: 70: 70: 70: 70: 70:*:'83 7: '37 70:*:'83 &+/252)250 &203281'&21&(175$7,21 ρJ/ 6$03/(,' 70: &$5%217(75$&+/25,'( &+/252)250 - 7&( '37 727$/&&$520$7,&6 70: ',&+/2523523$1( 70: &$5%217(75$&+/25,'( &+520,80 &+/252)250 ',&+/2523523$1( /($' 7&( 70:*:'83 &$5%217(75$&+/25,'( &+/252)250 7&( 70: &$5%217(75$&+/25,'( &+/252)250 ',&+/2523523$1( 3&( 70: ',&+/2523523$1( S:\ A A A - M a s t e r P r o j e c t s \ R a m R e a l t y - R M R \ R M R - 0 1 3 G e s c o S t r e e t \ E M P\ E M P F i g u r e s . d w g , g w , 6 / 1 6 / 2 0 2 2 9 : 4 4 : 4 4 A M , a m c k e n z i e 67 ( : $ 5 7 & 5 ( ( . *( 6 & 2 6 7 5 ( ( 7 67$7(675((7 $&&(6652$' 5(6,'(17,$/%5,'*($%29( $&&(66 5 2 $ '322/ 6* %(1=(1( 7&( 5(9,6,2112 -2%12505 '$7( ),*85(12 1$7,21$/:(/'(566833/< *(6&2675((7 67$7(675((7 &+$5/277(1257+&$52/,1$ 62,/*$66$03/(/2&$7,210$3 /(*(1' %52:1),(/'63523(57<%281'$5< 3$5&(/%281'$5< 685)$&(:$7(5)($785( )250(55$,/52$' )250(5867 352326('%8,/',1*)22735,17 62,/*$6021,725,1*32,17/2&$7,21 2923 South Tryon Street-Suite 100Charlotte, North Carolina 28203704-586-0007(p) 704-586-0373(f)License # C-1269 / #C-245 Geology 6287+(51&21&5(7( 0$7(5,$/6 67$7(675((7 )256+$: 67$7(675((7 9$&$17,1'8675,$/%8,/',1* 81'(55(129$7,21 )250(53/</(53$3(5672&.&2 *(6&2675((7 67 ( : $ 5 7 & 5 ( ( . 6(9(569,//(3$5. 6%5816$9(18( 127(6 3$5&(/'$7$2%7$,1(')5200(&./(1%85*&2817< *,6 867 81'(5*5281'6725$*(7$1. 7&( 75,&+/252(7+(1( %'/ %(/2:/$%25$725<0(7+2''(7(&7,21/,0,76ρJP 0,&52*5$063(5&8%,&0(7(5 - /$%25$725<(67,0$7('&21&(175$7,21 5('(9(/230(173/$129(5/$,')5206,7(3/$1 3529,'('%<%%0$5&+,7(&785( %2/' &203281'(;&(('65(6,'(17,$/9$325 ,17586,2168%6/$%$1'(;7(5,2562,/*$6 6&5((1,1*/(9(/66*6/V 81'(5/,1( &203281'(;&(('61215(6,'(17,$/ 6*6/ '8.((1(5*< 5,*+72):$< *( 6 & 2 6 7 5 ( ( 7 67$7(675((7 3,3('67250:$7(5 '5$,1$*( 6* 6* 6* 6* 6* 6*'83 6*6* 6* 6*6* 6* &203281'&21&(175$7,21 ρJP 6$03/(,' 6* %(1=(1( &+/252)250 ',&+/252(7+$1(- ',&+/252(7+</(1( (7+</%(1=(1( 7&( 0 3;</(1( 6* %(1=(1( %87$',(1(%'/ &$5%217(75$&+/25,'(-%'/ &+/252)250 ',&+/252%(1=(1(-%'/ ',&+/252(7+$1( ',&+/252(7+$1(-%'/ ',&+/252(7+</(1( 75$16',&+/252(7+(1( (7+</%(1=(1( - +(;$&+/252%87$',(1(-%'/ 1$3+7+$/(1(-%'/ 7&( 9,1</&+/25,'( 6*6*'83 %(1=(1( (7+</$&(7$7( (7+</%(1=(1( 7&( 6* %(1=(1( 6* %(1=(1( (7+</%(1=(1( 6* %(1=(1( 6* %(1=(1( 9,1</&+/25,'( 6* %(1=(1( 7&( S:\ A A A - M a s t e r P r o j e c t s \ R a m R e a l t y - R M R \ R M R - 0 1 3 G e s c o S t r e e t \ E M P\ E M P F i g u r e s . d w g , s g , 6 / 1 6 / 2 0 2 2 9 : 4 5 : 0 7 A M , a m c k e n z i e Appendix B VIMS As-Built Drawings (VM-1, VM-2, VM-3, & VM-4) VIMS VAPOR BARRIER AND BASE COURSE (TYP)1 VAPOR BARRIER (SEE SPECIFICATION #2) CONCRETE FLOOR SLAB SUB-BASE NTSVM-1 BASE COURSE - CLEAN # 57 STONE (WASHED WITH NO FINES), MIN 5" THICK BENEATH VIMS VAPOR BARRIER (SEE SPECIFICATION #2) 3" SCH 40 THREADED FLUSH JOINT SLOTTED PVC PIPE SET WITHIN MIN 5" BASE COURSE (SEE SPECIFICATION #3) VAPOR BARRIER (SEE SPECIFICATION #2) SUB-BASE CONCRETE FLOOR SLAB SLOTTED COLLECTION PIPE (TYPICAL)2 NTSVM-1 T.O.C. CONCRETE FLOOR SLAB BASE COURSE SUB-BASE VIMS PIPING THROUGH INTERIOR GRADE BEAM WITH RISER DUCT PIPING (TYP) NTS 6 VM-1 SOLID 3" SCH 40 PVC VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS VAPOR BARRIER SOLID TO SLOTTED 3" SCH 40 PVC PIPE TRANSITION (SLIP COUPLING OR THREADED JOINT) 3" SCH 40 PVC RISER DUCT PIPE (SEE SPECIFICATION #4, #5 & #6)3" SCH 40 PVC TEE PIPE SLEEVE (SEE SPECIFICATION #12) WALL (VARIES) BASE COURSE SUB-BASE VIMS PIPING THROUGH INTERIOR GRADE BEAM (TYP) NTS 3 VM-1 SOLID 3" SCH 40 PVC VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS VAPOR BARRIER SOLID TO SLOTTED 3" SCH 40 PVC PIPE TRANSITION (SLIP COUPLING OR THREADED JOINT) WALL (VARIES) PIPE SLEEVE (SEE SPECIFICATION #12) VIMS PIPING THROUGH SLAB STEP (TYP) NTS 4 VM-1 SUB-BASE VAPOR BARRIER BASE COURSE SOLID TO SLOTTED 3" SCH 40 PVC PIPE TRANSITION (SLIP COUPLING OR THREADED JOINT) 3" SCH 40 PVC 45-DEGREE ELBOW VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS SOLID 3" SCH 40 PVCPIPE SLEEVE (SEE SPECIFICATION #12) WALL (VARIES) VIMS AT SLAB THICKENING WITH PIPE (TYP) NTS 5 VM-1 BASE COURSE WALL (VARIES) SUBBASE VAPOR BARRIER 3" SCH 40 PVC 45-DEGREE ELBOW 3" SCH 40 SLOTTED PVC PIPE VIMS AT SLAB STEP WITH RISER DUCT PIPING (TYP) NTS 7 VM-1 SUB-BASE CONCRETE FLOOR SLAB VAPOR BARRIER SOLID 3" SCH 40 PVC BASE COURSE WALL (VARIES) SOLID TO SLOTTED 3" SCH 40 PVC PIPE TRANSITION (SLIP COUPLING OR THREADED JOINT) VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS 3" SCH 40 PVC 90-DEGREE ELBOW 3" SCH 40 PVC 90-DEGREE TEE PIPE SLEEVE (SEE SPECIFICATION #12) VIMS AT VERTICAL RISERS WITH 90 DEGREE ELBOW (TYP) NTS 8 VM-1 BASE COURSE SUB-BASE 3" SCH 40 PVC RISER DUCT PIPE (SEE SPECIFICATION #4, #5 & #6)WALL (VARIES) SLOTTED 3" SCH 40 PVC VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS VAPOR BARRIER UPPER FLOOR OCCUPIED SPACE LOWER FLOOR OCCUPIED SPACE VIMS AT RETAINING WALL ADJACENT TO OCCUPIED SPACE (TYP) NTS 9 VM-1 SUB-BASE BASE COURSE VAPOR BARRIER VAPOR BARRIER SEALED TO OUTSIDE OF CONCRETE AND WATERPROOFING MEMBRANE (WHERE PRESENT) PER MANUFACTURER INSTRUCTIONS (SEE DETAIL 11/VM-1) WATERPROOFING AND RIGID INSULATION (IF PRESENT - REFER TO ARCH. PLANS) DRAIN WALL (VARIES) CONCRETE FLOOR SLAB 11 VM-1 SOIL SUB-BASE VAPOR BARRIER DRAINAGE MAT (IF PRESENT) CONCRETE NTS VIMS AT SUB-GRADE VERTICAL WALL - WATERPROOFING DETAIL (TYP) WATERPROOFING MEMBRANE (IF PRESENT - REFER TO ARCH. PLANS) (SEE SPECIFICATION #13) VIMS BELOW ELEVATOR PIT NTS 10 SUMP PIT VM-1 ELEVATOR PIT BASE COURSE SEE DETAIL 11/VM-1 WATERPROOFING MEMBRANE (IF PRESENT - REFER TO ARCH. PLANS) (SEE SPECIFICATION #13) VAPOR BARRIER SEALED TO OUTSIDE OF CONCRETE AND WATERPROOFING MEMBRANE, IF PRESENT, PER MANUFACTURER INSTRUCTIONS (SEE DETAIL 11/VM-1) CONTINUOUS VAPOR BARRIER SEALED PER MANUFACTURER INSTRUCTIONS H&H NO. RMR-013 VAPOR MITIGATION PLAN PREPARED BY: 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology VAPOR INTRUSION MITIGATION SYSTEM CROSS-SECTION DETAILS DEVELOPER: RAM REALTY ADVISORS 4801 PGA BLVD. PALM BEACH GARDENS, FL VM-1 PROFESSIONAL APPROVAL TH E P E R C H A P A R T M E N T S GE S C O S T R E E T & S T A T E S T R E E T CH A R L O T T E , N O R T H C A R O L I N A BR O W N F I E L D S P R O J E C T N O . 2 5 0 3 5 - 2 1 - 0 6 0 DATE: 4-2-24 REVISION 2 S: \ A A A - M a s t e r P r o j e c t s \ R a m R e a l t y - R M R \ R M R - 0 1 3 G e s c o S t r e e t \ V I M S I n s t a l l R e p o r t s \ B l d . B \ A s - B u i l t s \ V I M S D e s i g n _ R e v 2 _ J a n 2 0 2 4 _ a s - b u i l t . d w g , 4 / 2 / 2 0 2 4 1 1 : 4 5 : 5 3 A M , D W G T o P D F . p c 3 WALL (VARIES) BASE COURSE SUB-BASE VAPOR BARRIER AT SLAB EDGE (TYP)12 NTSVM-1A VAPOR BARRIERFINAL GRADE (VARIES) VAPOR BARRIER TERMINATED AT SOIL GRADE, WHERE APPLICABLE OPEN-AIR EXTERIOR ENCLOSED INTERIOR FINISHED FLOOR SLAB 2" SCH 40 PVC SET WITHIN GRAVEL LAYER 2" DRAIN EXPANSION TEST PLUG VIMS MONITORING POINT - TYPICAL DETAIL VIEW NTS 13 VM-1A VAPOR BARRIER PENETRATION SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS 2" SCH 40 PVC 90 DEGREE ELBOW FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURN INDUSTRIES MODEL #CO2450-PV4 (OR ENGINEER APPROVED EQUIVALENT) FLUSH WITH FINISHED FLOOR BASE COURSE 4" x 2" FLUSH REDUCER BUSHING PVC TERMINATION SCREEN (SEE SPECIFICATION #7) VIMS MONITORING POINT AT WALL CONNECTION (IF WARRANTED) NTS 16 VM-1A BASE COURSE VAPOR BARRIER SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS WALL (VARIES) POSITION TOP OF 2" PIPE MINIMUM 10" FROM TOP OF ACCESS PANEL DOOR 2" SCH 40 PVC 90 DEGREE ELBOW PIPE SLEEVE VAPOR BARRIER 12" X 12" WALL ACCESS PANEL PROVIDE PIPE SUPPORT TO PREVENT LOW POINT IN SOLID SECTION OF PIPE. MAINTAIN MINIMUM 1% SLOPE TOWARD OPEN-END OF PIPE. (SEE SPECIFICATION #3) 2" DRAIN EXPANSION TEST PLUG PVC TERMINATION SCREEN POSITION AT CENTER OF WALL OR ALLOW FOR AT LEAST 1/2" DISTANCE AROUND ALL SIDES OF PIPE 2" SOLID SCH 40 PVC PIPE BASE COURSE FLOOR CLEANOUT, ADJUSTABLE, 4" DIA ZURN INDUSTRIES MODEL #CO2450-PV4 (OR ENGINEER APPROVED EQUIVALENT) SEE DETAIL 13/VM-1A FLUSH WITH FINISHED FLOOR 2" SOLID SCH 40 PVC 14 VIMS MONITORING POINT THROUGH THICKENED SLAB WITH EXTENDED INTAKE PIPE PIPE SLEEVE NTSVM-1A 2" SCH 40 PVC 90-DEGREE ELBOWVAPOR BARRIER PENETRATION SEALED TO PIPE PER MANUFACTURER INSTRUCTIONS WALL (VARIES) VIMS TURBINE VENTILATOR FAN & EXHAUST17 NTS TURBINE VENTILATOR FAN (EMPIRE MODEL TV04SS OR ENGINEER APPROVED EQUIVALENT) ELECTRICAL JUNCTION BOX FOR POTENTIAL FUTURE VACUUM FAN (REFER TO SPECIFICATION #5) 4" X 3" PVC COUPLING RISER DUCT PIPE THROUGH ROOF FLASHING ROOFTOP VM-1A ELECTRIC FAN (RADONAWAY RP-145C OR APPROVED EQUIVALENT) FAN LABEL (SEE SPECIFICATION #6) ELECTRIC OUTLET (120V AC) - SEE SPECIFICATION #5 RADONAWAY CHECKPOINT IIAR MITIGATION SYSTEM ALARM; SEE SPECIFICATION #5 3" SCH 40 PVC RISER (SEE DETAILS 6, 7 & 8/VM-1) CEILING TRUSSES WATERPROOF FLASHING 4" SCH 40 VARMINT SCREEN / PIPE GUARD (RADONAWAY PART #76041-2, OR SIMILAR) ROOFTOP VIMS ELECTRIC FAN AND RISER ON ROOFTOP NTS 18 VM-1A RUBBER NO-HUB 4"X3" REDUCER 4" RUBBER NO-HUB COUPLING SOLID 4" SCH 40 PVC INSTALL PIPE SUPPORT PER NC BUILDING CODE WATERTIGHT/SEALED CONDUIT THROUGH ROOF FOR REMOTE ALARM INDICATOR WIRE RADONAWAY LOW-VOLTAGE WIRE TO REMOTE ALARM INDICATOR RADONAWAY CHECKPOINT IIAR REMOTE ALARM INDICATOR MOUNTED ON FIFTH FLOOR (LEVEL 5) CORRIDOR WALL WITH LABEL (SEE SPECIFICATION #5.3). EXTERIOR PERMANENT VACUUM MEASURING POINT (TYP)15 NTSVM-1A WALL (VARIES)LOCKABLE WEATHERPROOF ENCLOSURE ON OUTSIDE OF BUILDING WALL (OR SIMILAR). LABEL AFFIXED AT BOX WITH "VAPOR MITIGATION SYSTEM". REMOVABLE PIPE PLUG PLACED AT END OF 2" PIPE. VAPOR BARRIER SEALED TO CONCRETE PER MANUFACTURERS INSTRUCTIONS 2" SCH 40 PVC 90 DEGREE ELBOW 2" SOLID SCH 40 PVC PIPE EXTERIOR GRADE (VARIES)BASE COURSE 2" OPEN ENDED PIPE, PLACED AT A MINIMUM OF 5' FROM EXTERIOR TURN-DOWN SLABS (SEE SPECIFICATION #7) VAPOR BARRIER VAPOR BARRIER SEALED TO PIPE PER MANUFACTURERS INSTRUCTIONS (TYP) TRENCH BACKFILL AT BURIED UTILITY CONNECTION NTSVM-1A 19 CONCRETE FLOOR SLAB VAPOR BARRIER SEALED TO CONCRETE PER MANUFACTURERS INSTRUCTIONS VAPOR BARRIER BASE COURSE SUB-BASE EXTERIOR GRADE (VARIES) EXTERIOR WALL (NOT PRESENT IN ALL LOCATIONS) TRENCH DAM (SEE SPECIFICATION #14) CONDUIT/UTILITY PIPINGTYPICAL TRENCH BACKFILL WALL (VARIES) BASE COURSE SUB-BASE VAPOR BARRIER AT SLAB EDGE - POOL EQUIPMENT ROOM (TYP)12A NTSVM-1A VAPOR BARRIERFINAL GRADE (VARIES) OPEN-AIR EXTERIOR ENCLOSED INTERIOR H&H NO. RMR-013 VAPOR MITIGATION PLAN PREPARED BY: 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology VAPOR INTRUSION MITIGATION SYSTEM CROSS-SECTION DETAILS DEVELOPER: RAM REALTY ADVISORS 4801 PGA BLVD. PALM BEACH GARDENS, FL VM-1A PROFESSIONAL APPROVAL TH E P E R C H A P A R T M E N T S GE S C O S T R E E T & S T A T E S T R E E T CH A R L O T T E , N O R T H C A R O L I N A BR O W N F I E L D S P R O J E C T N O . 2 5 0 3 5 - 2 1 - 0 6 0 DATE: 4-2-24 REVISION 2 S: \ A A A - M a s t e r P r o j e c t s \ R a m R e a l t y - R M R \ R M R - 0 1 3 G e s c o S t r e e t \ V I M S I n s t a l l R e p o r t s \ B l d . B \ A s - B u i l t s \ V I M S D e s i g n _ R e v 2 _ J a n 2 0 2 4 _ a s - b u i l t . d w g , 4 / 2 / 2 0 2 4 1 1 : 4 9 : 1 2 A M , D W G T o P D F . p c 3 VIMS STAIRWELL RISER AT STEM WALL CONDITION NTS 20 VM-1B 4" DIA CORROSION RESISTANT METAL RISER PIPE PIPE OPENING SET A MINIMUM 3" ABOVE BASE OF GRAVEL LAYER. SOIL REMOVED AND GRAVEL ADDED BELOW PIPE AS NECESSARY. SUB-BASE PIPE PENETRATION SEALED WITH VIAFLEX VBP-20 VAPOR BARRIER OR APPROVED SEALANTS, SUCH AS VIAFLEX POUR N' SEAL OR CONDRI, PRIOR TO PATCHING CONCRETE SCH 40 PVC PIPE THROUGH CONCRETE WITH OPEN END SET WITHIN SUB-SLAB GRAVEL (#57 STONE) LAYER 4" HEAVY-DUTY RUBBER COUPLING (E.G. FERNCO HD-44) FOR PVC TO METAL TRANSITION, OR SIMILAR FITTINGS FOR DWV APPLICATION EXISTING 20-MIL VAPOR BARRIER TEMPORARY MONITORING POINT (38" OR 12" DIA) HOLE DRILLED THROUGH CONCRETE SLAB. AFTER TESTING, ABANDONED WITH VIAFLEX APPROVED SEALANT AT GRAVEL AND FINISHED CONCRETE WITH A SELF-LEVELING POLYURETHANE. SEE SHEET VM-3 FOR LOCATION PIPE SECURED TO EXISTING WALL WITH PIPE HANGARS EXISTING MINIMUM 4" OF CLEAN #57 STONE (GRAVEL) LAYER PVC PIPE SLEEVE, OR OTHER APPROVED MATERIAL, IN ACCORDANCE WITH STRUCTURAL PLANS. SEE DETAIL 17/VM-1A (VIMS TURBINE EXHAUST) STAIRWELL 3" M I N 3" M I N VIMS STAIRWELL RISER AT SLAB TURNDOWN OR FOOTING CONDITION NTS 21 VM-1B 4" DIA CORROSION RESISTANT METAL RISER PIPE PIPE OPENING SET A MINIMUM 3" ABOVE BASE OF GRAVEL LAYER. SOIL REMOVED AND GRAVEL ADDED BELOW PIPE AS NECESSARY. SUB-BASE SOILS PIPE PENETRATION SEALED WITH VIAFLEX VBP-20 VAPOR BARRIER OR APPROVED SEALANTS, SUCH AS VIAFLEX POUR N' SEAL OR CONDRI, PRIOR TO PATCHING CONCRETE SCH 40 PVC PIPE THROUGH CONCRETE WITH OPEN END SET WITHIN SUB-SLAB GRAVEL (#57 STONE) LAYER. SLOPE HORIZONTAL SECTION TOWARD GRAVEL FOR WATER DRAINAGE 4" HEAVY-DUTY RUBBER COUPLING (E.G. FERNCO HD-44) FOR PVC TO METAL TRANSITION, OR SIMILAR FITTINGS FOR DWV APPLICATION EXISTING 20-MIL VAPOR BARRIER PIPE SECURED TO EXISTING WALL WITH PIPE HANGARS EXISTING MINIMUM 4" OF CLEAN #57 STONE (GRAVEL) LAYER PVC PIPE SLEEVE, OR OTHER APPROVED MATERIAL, IN ACCORDANCE WITH STRUCTURAL PLANS. SEE DETAIL 17/VM-1A (VIMS TURBINE EXHAUST) STAIRWELL TEMPORARY MONITORING POINT (38" OR 12" DIA) HOLE DRILLED THROUGH CONCRETE SLAB. AFTER TESTING, ABANDONED WITH VIAFLEX APPROVED SEALANT AT GRAVEL AND FINISHED CONCRETE WITH A SELF-LEVELING POLYURETHANE. SEE SHEET VM-3 FOR LOCATION H&H NO. RMR-013 VAPOR MITIGATION PLAN PREPARED BY: 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology VAPOR INTRUSION MITIGATION SYSTEM CROSS-SECTION DETAILS DEVELOPER: RAM REALTY ADVISORS 4801 PGA BLVD. PALM BEACH GARDENS, FL VM-1B PROFESSIONAL APPROVAL TH E P E R C H A P A R T M E N T S GE S C O S T R E E T & S T A T E S T R E E T CH A R L O T T E , N O R T H C A R O L I N A BR O W N I E P R O J E C T N O . 2 5 0 3 5 - 2 1 - 0 6 0 DATE: 4-2-24 REVISION 2 S: \ A A A - M a s t e r P r o j e c t s \ R a m R e a l t y - R M R \ R M R - 0 1 3 G e s c o S t r e e t \ V I M S I n s t a l l R e p o r t s \ B l d . B \ A s - B u i l t s \ V I M S D e s i g n _ R e v 2 _ J a n 2 0 2 4 _ a s - b u i l t . d w g , 4 / 2 / 2 0 2 4 1 1 : 4 9 : 4 4 A M , D W G T o P D F . p c 3 H&H NO. RMR-013 VAPOR MITIGATION PLAN PREPARED BY: 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology VAPOR INTRUSION MITIGATION SYSTEM SPECIFICATIONS DEVELOPER: RAM REALTY ADVISORS 4801 PGA BLVD. PALM BEACH GARDENS, FL VM-2 PROFESSIONAL APPROVAL TH E P E R C H A P A R T M E N T S GE S C O S T R E E T & S T A T E S T R E E T CH A R L O T T E , N O R T H C A R O L I N A BR O W N F I E L D S P R O J E C T N O . 2 5 0 3 5 - 2 1 - 0 6 0 VAPOR INTRUSION MITIGATION SYSTEM (VIMS) SPECIFICATIONS 1.THIS VAPOR MITIGATION PLAN WAS INTENDED TO BE USED FOR DIRECTION OF VIMS COMPONENT INSTALLATION ONLY AND WAS NOT INTENDED TO GUIDE CONSTRUCTION OF BUILDING STRUCTURAL COMPONENTS. CONSTRUCTION CONTRACTOR WAS RESPONSIBLE FOR VERIFYING CONSISTENCY OF VIMS DETAILS WITH APPLICABLE STRUCTURAL, ARCHITECTURAL, MECHANICAL, & PLUMBING PLANS AND RESOLVE ANY INCONSISTENCIES PRIOR TO VIMS INSTALLATION. 2.VIMS VAPOR BARRIER (LINER) IS VAPORBLOCK PLUS 20 (VBP20) 20-MIL VAPOR BARRIER MANUFACTURED BY VIAFLEX, INC. (FORMER KNOWN AS RAVEN INDUSTRIES). THE VAPOR BARRIER WAS INSTALLED AS SPECIFIED HEREIN AND PER MANUFACTURER INSTALLATION INSTRUCTIONS TO CREATE A CONTINUOUS BARRIER BELOW MITIGATED AREAS, AND ALONG RETAINING WALLS AND SLAB-ON-GRADE FOLDS WITHIN THE EXTENT OF VAPOR BARRIER BOUNDARY. A MINIMUM 5-INCH THICK BASE COURSE CONSISTING OF CLEAN #57 STONE (WASHED WITH NO FINES) WAS INSTALLED BENEATH THE VIMS VAPOR BARRIER. 2.1.THE VAPOR BARRIER WAS PROPERLY SEALED IN ACCORDANCE WITH THE MANUFACTURER INSTALLATION INSTRUCTIONS AS SPECIFIED IN THESE DRAWINGS TO FOOTERS, SLAB STEPS, RETAINING WALLS, PENETRATIONS (SUCH AS PIPE PENETRATIONS), OR OTHER BUILDING COMPONENTS WITHIN THE VIMS EXTENTS. VAPOR BARRIER WAS INSTALLED UNDER CMU WALLS WHICH SUPPORT OCCUPIED ENCLOSED SPACES. 2.2.VAPOR BARRIER WAS INSTALLED UNDER SLABS, ON WALLS, AND ALONG OTHER STRUCTURAL COMPONENTS WHICH CAME IN CONTACT WITH BOTH AN OCCUPIABLE ENCLOSED SPACE AND SOIL. THE GENERAL CONTRACTOR VERIFIED ALL REQUIRED LOCATIONS FOR VAPOR BARRIER ALONG VERTICAL WALLS PRIOR TO CONSTRUCTION. 2.3.VAPOR BARRIER WAS INSTALLED BELOW CONCRETE BOX-OUTS, INCLUDING BUT NOT LIMITED TO SHOWER/BATH TUB DRAINS. 2.4.VAPOR BARRIER WAS EXTENDED ALONG FOOTING EXTERIOR, IF POSSIBLE, AT LOCATIONS WHERE EXTERIOR GRADE WAS HIGHER THAN INTERIOR GRADE. 2.5.IN AREAS WITH EXPANSION BOARDS (E.G. ALONG COLUMNS), THE VAPOR BARRIER WAS SEALED DIRECTLY TO THE CONCRETE WITH THE EXPANSION BOARD INSTALLED OVER THE VAPOR BARRIER. 3.SUB-SLAB SLOTTED VAPOR COLLECTION PIPE IS SOCKET-WELD 3" SCH 40 PVC PIPE WITH 0.020" TO 0.060" SLOT WIDTH AND 1/8" SLOT SPACING. A PVC TERMINATION SCREEN (WALRICH CORPORATION #2202052, OR SIMILAR) WAS INSTALLED ON THE END OF PIPE. 3.1.SLOTTED COLLECTION PIPING WAS SET WITHIN THE MINIMUM 5” BASE COURSE LAYER, WITH APPROXIMATELY 1” OF BASE COURSE MATERIAL BELOW THE PIPING. 4.3" SCH 40 PVC OR 4" SCH 40 GALVANIZED STEEL RISER DUCT PIPING WAS INSTALLED TO CONNECT EACH SLAB PENETRATION LOCATION TO A ROOFTOP EXHAUST DISCHARGE POINT WITH STATIONARY VENTILATOR. ABOVE-SLAB RISER DUCT PIPE THAT RUNS BETWEEN THE SLAB PENETRATION AND THE ROOFTOP EXHAUST DISCHARGE WAS INSTALLED PER APPLICABLE BUILDING CODE AND AS SPECIFIED IN THE CONSTRUCTION DOCUMENTS AND DRAWINGS. 4.1.PVC VERTICAL RISER PIPING WAS CONNECTED USING PVC PRIMER AND GLUE. 4.2.STEEL VERTICAL RISER PIPING WAS CONNECTED USING AIR-TIGHT FITTINGS. 4.3.VERTICAL RISER PIPING WAS INSTALLED PER NORTH CAROLINA STATE PLUMBING CODE. 4.4.VIMS BELOW AND ABOVE GRADE SOLID PIPING IS NOT TRAPPED AND IS SLOPED A MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN. BENDS, TURNS, AND ELBOWS IN VERTICAL RISER PIPES WERE MINIMIZED FROM THE SLAB TO THE ROOFTOP. 5.THE RISER DUCT PIPING EXTENDS IN A VERTICAL ORIENTATION THROUGH THE BUILDING ROOF AND TERMINATES A MINIMUM OF 2 FT ABOVE THE BUILDING ROOF LINE. EMPIRE MODEL TV04SS VENTILATOR WAS INSTALLED ON THE EXHAUST DISCHARGE END OF EACH RISER DUCT PIPE IN BUILDING B. THE RISER DUCT PIPE AND THE VENTILATOR ARE SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION. A 4" X 3" PVC ADAPTOR COUPLING WAS INSTALLED AT THE DISCHARGE END OF THE 3" RISER DUCT PIPE AND THE VENTILATOR WAS SECURED TO THE PVC RISER IN A VERTICAL ORIENTATION. 5.1.EXHAUST DISCHARGE LOCATIONS ARE A MINIMUM OF 10 FT FROM ANY OPERABLE OPENING OR AIR INTAKE INTO THE BUILDING. 5.2.AN ELECTRICAL JUNCTION BOX (120VAC) FOR OUTDOOR USE WAS INSTALLED NEAR THE PIPE DISCHARGE LOCATION ON THE ROOFTOP FOR POTENTIAL FUTURE CONVERSION TO ELECTRIC FANS, IF REQUIRED IN BUILDING B. ALL WIRING AND ELECTRICAL WAS INSTALLED PER APPLICABLE BUILDING AND ELECTRICAL CODES. 6.ABOVE-SLAB ACCESSIBLE RISER DUCT PIPING WAS PERMANENTLY IDENTIFIED BY MEANS OF A TAG OR STENCIL AT A MINIMUM OF ONCE EVERY 10-LINEAR FT WITH "VAPOR MITIGATION: CONTACT MAINTENANCE". LABELS ARE ALSO FIXED TO THE VENTILATORS IN AN ACCESSIBLE LOCATION ON THE ROOFTOP. 7.MONITORING POINTS CONSIST OF 2-INCH DIAMETER SCH 40 PVC PIPE WITH A 90-DEGREE ELBOW TO FORM AN “L” SHAPE. A MINIMUM OF 6” SECTION OF PIPE AND MAXIMUM 6 FT SECTION OF PIPE WAS SET WITHIN THE BASE COURSE LAYER WITH AN OPEN ENDED PIPE OR PIPE PROTECTION SCREEN AT THE TERMINATION. THE PIPE TERMINATION WAS ENCASED WITHIN THE BASE COURSE LAYER. 7.1.THE HORIZONTAL PIPING WAS SLOPED A MINIMUM OF 1/8 UNIT VERTICAL BY 12 UNITS HORIZONTAL (1% SLOPE) TO GRAVITY DRAIN TOWARDS THE PIPE TERMINATION AND PREVENT MOISTURE FROM COLLECTING AT THE 90-DEGREE ELBOW. 7.2.THE MONITORING POINT INTAKE WAS PLACED A MINIMUM OF 5-FT FROM EXTERIOR FOOTERS. 7.3.MONITORING POINTS LOCATED IN STAIRWELLS WERE INSTALLED BELOW STAIRWELL LANDINGS TO PROVIDE SUITABLE ACCESS TO THE POINT. 7.4.THE END OF THE PIPE CONTAINS A PVC TERMINATION SCREEN, WHICH HAVE A MINIMUM OF THREE 5 8" DIA HOLES DRILLED INTO A SOLID CAP. AN OPEN PIPE WAS USED FOR MONITORING POINTS LOCATED IN STAIRWELLS. 7.5.A 4-INCH DIAMETER ADJUSTABLE FLOOR CLEAN-OUT (ZURN INDUSTRIES MODEL #CO2450-PV4, OR EQUIVALENT) WAS INSTALLED AND SET FLUSH WITH THE FINISHED CONCRETE SURFACE, OR THE MONITORING POINT WAS PLACED BEHIND A WALL ACCESS PANEL PER THE DETAILS. 8.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS WERE INSTRUCTED TO USE "LOW OR NO VOC" PRODUCTS AND MATERIALS, WHEN POSSIBLE, AND WERE INSTRUCTED NOT TO USE PRODUCTS CONTAINING THE COMPOUNDS TETRACHLOROETHENE (PCE) OR TRICHLOROETHENE (TCE). THE CONSTRUCTION CONTRACTOR AND SUB-CONTRACTORS PROVIDED SAFETY DATA SHEETS (SDS) TO THE ENGINEER FOR THE PRODUCTS AND MATERIALS USED FOR CONSTRUCTION OF THE VIMS. 9.IN INSTANCES WHERE A THICKENED FOOTING OR RETAINING WALL WAS NOT SPECIFIED AT THE EXTENT OF VAPOR BARRIER, A THICKENED SLAB OR FOOTER WAS INSTALLED BY THE CONTRACTOR THAT INCLUDED A SOIL SUBBASE TO CREATE A CUT-OFF FOOTER AT THE EXTENT OF VAPOR BARRIER. THE ADDITIONAL THICKENED SLAB OR FOOTER DID NOT ALLOW FOR CONTINUOUS GRAVEL BETWEEN THE VIMS EXTENTS AND EXTERIOR NON-MITIGATED AREAS. 10.CONSTRUCTION CONTRACTORS AND SUB-CONTRACTORS AVOIDED THE USE OF TEMPORARY FORM BOARDS THAT PENETRATED THE VAPOR BARRIER WHERE POSSIBLE. IF TEMPORARY FORM BOARDS WERE USED, THE SIZE AND NUMBER OF PENETRATIONS THROUGH THE VAPOR BARRIER WAS LIMITED AND SMALL DIAMETER SOLID STAKES (I.E. METAL STAKES) WERE USED. IN ALL CASES, AS FORM BOARDS WERE REMOVED, THE CONTRACTOR OR SUB-CONTRACTORS RESEALED ALL PENETRATIONS IN ACCORDANCE WITH VAPOR BARRIER MANUFACTURER INSTALLATION INSTRUCTIONS. 10.1.HOLLOW FORMS OR CONDUITS THAT CONNECT THE SUB-SLAB ANNULAR SPACE TO ENCLOSED ABOVE SLAB SPACES WERE NOT PERMITTED. 10.2.AREAS OF UTILITY BANKS (e.g. LOCATION OF THREE OR MORE ADJACENT UTILITIES THROUGH THE SLAB) WERE SEALED TO CREATE AN AIR-TIGHT BARRIER AROUND THE UTILITY CONDUITS USING RAVEN POUR N' SEAL OR STEGO-INDUSTRIES MASTIC PRIOR TO THE SLAB POUR. OTHER SEALANT METHODS IF USED WERE APPROVED BY THE DESIGN ENGINEER PRIOR TO APPLICATION. 11.INSPECTIONS: INSPECTIONS OF EACH COMPONENT OF THE VIMS WERE CONDUCTED BY THE DESIGN ENGINEER, OR ENGINEER'S DESIGNEE, TO CONFIRM VIMS COMPONENTS WERE INSTALLED PER THE APPROVED DESIGN. THE REQUIRED INSPECTION COMPONENTS INCLUDED: (1) INSPECTION OF SUB-SLAB PIPING LAYOUT, (2) GRAVEL PLACEMENT, AND (3) MONITORING POINT PLACEMENT PRIOR TO INSTALLING VAPOR BARRIER; (4) INSPECTION OF VAPOR BARRIER PRIOR TO POURING CONCRETE; (5) INSPECTION OF ABOVE-GRADE PIPING LAYOUT; AND (6) INSPECTION OF VENTILATOR AND RISER DUCT PIPE CONNECTIONS. 12.PIPE SLEEVES, IF USED, WERE PROPERLY SEALED TO PREVENT A PREFERENTIAL AIR PATHWAY FROM BELOW THE SLAB INTO THE BUILDING. 13.WATERPROOFING INCLUDING MEMBRANES AND DRAINAGE MATS WERE INSTALLED IN ACCORDANCE WITH THE ARCHITECTURAL AND STRUCTURAL PLANS. WHERE WATERPROOFING WAS PRESENT, THE VAPOR BARRIER WAS INSTALLED BETWEEN WATERPROOFING AND ANY DRAINAGE FEATURES INCLUDING DRAINAGE MATS. THE INSTALLER WAS RESPONSIBLE FOR CONFIRMING THAT THE WATERPROOFING PRODUCTS AND SEALANTS USED DURING CONSTRUCTION WERE COMPATIBLE WITH THE SPECIFIED VAPOR BARRIER. 14.TO CONTROL HORIZONTAL GAS MIGRATION THROUGH UTILITY TRENCHES WITH TRANSMISSIVE BACKFILL (e.g. SAND, STONE, SCREENINGS), TRENCH DAMS WERE INSTALLED ALONG UTILITY TRENCHES RUNNING BELOW THE BUILDING FOOTPRINT THAT ORIGINATED FROM OUTSIDE THE BUILDING FOOTPRINT. THE TRENCH DAMS WERE INSTALLED ADJACENT TO THE EXTERIOR PERIMETER OF THE BUILDING FOUNDATION. TRENCH DAMS WERE INSTALLED USING AN IMPERVIOUS FILL OF LEAN CONCRETE, A BENTONITE CEMENT SLURRY, SOIL AND CEMENT MIX, FLOWABLE FILL, OR SIMILAR, AND WERE INSTALLED WITH A MINIMUM LENGTH OF 3 FEET AND EXTENDED A MINIMUM OF 6 INCHES ABOVE THE TOP OF THE TRENCH BACKFILL ALONG THE EXTERIOR OF THE BUILDING. FOR TRENCH DAMS WHERE SILTY/CLAYEY SOILS WERE USED, THEY WERE INSTALLED WITH A MINIMUM LENGTH OF 5 FEET AND COMPACTED USING STANDARD COMPACTION METHODS. DATE: 4-2-24 REVISION 2 S: \ A A A - M a s t e r P r o j e c t s \ R a m R e a l t y - R M R \ R M R - 0 1 3 G e s c o S t r e e t \ V I M S I n s t a l l R e p o r t s \ B l d . B \ A s - B u i l t s \ V I M S D e s i g n _ R e v 2 _ J a n 2 0 2 4 _ a s - b u i l t . d w g , 4 / 2 / 2 0 2 4 1 1 : 5 0 : 1 7 A M , D W G T o P D F . p c 3 UP UP UP DN UP DN DN UP UP UP DN DN DNDN DN DN DN DN DN DN DN DN DN DN 48"30" 65 0 ' MODEL UNIT BUILDING A BUILDING B LO A D I N G Z O N E 651' 650' 652' - 0" 653' - 0" 653' 652' - 0" 7. 8 9 % 652' - 0" 651' 652' 652' 651' BR E E Z E W A Y 646'' TRASH/RECYCLING FOR LEVEL 1 MECH 652' - 0" STAIR A3 TRASH STAIR A2 ELEV. A2 MAINT. STAIR A4 STAIR B2 ELEV. B1 MECH ELEC 652' CLUBROOM WOMEN'S RR MEN'S RR MAIL LEASING ASST MGR OFFICE MGR OFFICE WORKROOM COWORK PACKAGE ROOM 650' FIRE BARRIER STAIR A1 MECH. MAINTENANCE PET SPA GROUP FITNESS FITNESS CYCLE STAIR B1 EL E C . ME C H . ELEC. ELEC. PO O L EQ U I P M E N T CHEM. STOR.658' 651'' UNIT S2 UNIT A3 UNIT A3 UNIT S2 UNIT S2 UNIT S2 UNIT B2 UNIT A3 UNIT B3UNIT B2UNIT A3 UNIT S2 UNIT A3 653' - 0" 652' - 0" 653' - 0" 653' - 0" 652' - 0" 653' - 0" UNIT A3 UNIT A3UNIT S2 8.00% 6. 7 4 % UNIT B5 RISER 646' - 0" 659' - 0" RISER 651' - 0" 651' 661' UNIT A3.A TYPE A UNIT S2.A TYPE A ELEV. A1 LOBBY ELEV. A1 8.33% UNIT B4 156 UNIT B1 159 UNIT A2 160 UNIT A1 ALT 1 150 UNIT A1 151 UNIT S2 155 UNIT S2 153 UNIT S2 152 UNIT B2 158 UNIT S2 154 UNIT C1 ALT 1 157 652' - 0" 659' - 0" 653' - 0" 652' - 0"653' - 0" 653' - 0" 652' - 0" 652' - 0" 650' - 0" IDF UNIT A3 ALT 4 UNIT A3 ALT 3 STOR. ELEC. CORRIDORCORRIDOR UNIT B2 MP-1 MP-2 MP-4 MP-3 MP-5 MP-6 MP-7 MP-8 MP-9 MP-11 MP-10 MP-12 MP-13 MP-14 MP-15 MP-16 E-1 E-4 E-5 E-6 E-3 E-2 E-9 E-7 E-8 E-10 E-14 E-13 E-11 E-12 TMP-3 MP-17 TMP-1 TMP-2 E-B2 E-B1 H&H NO. RMR-013 VAPOR MITIGATION PLAN PREPARED BY: 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology VAPOR INTRUSION MITIGATION SYSTEM PLAN VIEW LAYOUTS LEVEL 1 DEVELOPER: RAM REALTY ADVISORS 4801 PGA BLVD. PALM BEACH GARDENS, FL VM-3 PROFESSIONAL APPROVAL TH E P E R C H A P A R T M E N T S GE S C O S T R E E T & S T A T E S T R E E T CH A R L O T T E , N O R T H C A R O L I N A BR O W N F I E L D S P R O J E C T N O . 2 5 0 3 5 - 2 1 - 0 6 0 LEGEND OUTDOOR OR OPEN AIR SPACE EXTENT OF VAPOR LINER HORIZONTAL COLLECTION PIPING 3" DIA SCH 40 SOLID PVC VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER 2" DIA SOLID PVC PRESSURE MONITORING POINT WITH FLUSH-MOUNTED COVER (POSITION INTAKE MINIMUM 5-FT FROM EXTERIOR FOOTING) APPROXIMATE LOCATION FOR VACUUM ALARM REMOTE SENSOR IN HALLWAY ON FIFTH FLOOR (SEE SPECIFICATION #5.3). PROPOSED INDOOR AIR SAMPLE LOCATION INDOOR AIR SAMPLE LOCATION 4" DIA SCH 40 SOLID GALVANIZED STEEL VERTICAL RISER WITH EXHAUST IDENTIFICATION NUMBER TEMPORARY MONITORING POINT LOCATION (1" DIAMETER HOLE DRILLED THROUGH CONCRETE, ABANDONED AFTER TESTING) BUILDINGS NOT INCLUDED IN REPORT, WILL BE SUBMITTED UNDER SEPARATE COVER MP-1 E-3 6/15 VM-1/1A 2 VM-1 13 VM-1A 6/18 VM-1/1A 14/16 VM-1A 12 VM-1A 1 VM-1 3 VM-1 14/16 VM-1A 5 VM-1 14 VM-1A 4 VM-1 2 VM-1 6/18 VM-1/1A 1 VM-1 13 VM-1A 12 VM-1A 12A VM-1A 12 VM-1A 13 VM-1A 14/16 VM-1A 7/17 VM-1/1A 4 VM-1 14/16 VM-1A 6/17 VM-1/1A 13 VM-1A 2 VM-1 1 VM-1 12 VM-1A 7/17 VM-1/1A 1 VM-1 2 VM-1 14/16 VM-1A 9 VM-1 6/17 VM-1/1A 8 VM-1 PROPOSED SUB-SLAB SAMPLE LOCATION PROPOSED SUB-SLAB SAMPLE LOCATION PROPOSED SUB-SLAB SAMPLE LOCATION PROPOSED SUB-SLAB SAMPLE LOCATION PROPOSED SUB-SLAB SAMPLE LOCATION PROPOSED SUB-SLAB SAMPLE LOCATION SUB-SLAB SAMPLE LOCATION SUB-SLAB SAMPLE LOCATION PROPOSED SUB-SLAB SAMPLE LOCATION PROPOSED SUB-SLAB SAMPLE LOCATION PROPOSED SUB-SLAB SAMPLE LOCATION PROPOSED SUB-SLAB SAMPLE LOCATION SUB-SLAB SAMPLE LOCATION 11 VM-1 11 VM-1 10 VM-1 15 VM-1A TEMPORARY MONITORING POINT (TMP-B1) TEMPORARY MONITORING POINT (TMP-B2) DATE: 4-2-24 REVISION 2 20/21 VM-1B 20/21 VM-1B S: \ A A A - M a s t e r P r o j e c t s \ R a m R e a l t y - R M R \ R M R - 0 1 3 G e s c o S t r e e t \ V I M S I n s t a l l R e p o r t s \ B l d . B \ A s - B u i l t s \ V I M S D e s i g n _ R e v 2 _ J a n 2 0 2 4 _ a s - b u i l t . d w g , 4 / 2 / 2 0 2 4 1 1 : 5 0 : 5 2 A M , D W G T o P D F . p c 3 Appendix C VIMS Product Specifications !"#$%&'(()'))*+'&"'%),-./01, .. ,01,0. , 234567589 :;<=>?;<@AB=;>;>;BCD<E<;FGHBIH;>BAHBJ=K:;;BLA>G?AHBG<=>KMNNOPONQMRSTUVWXYZXXR[\O]^_]`Q^Ma[b cd;BBDFIH<DD>IHA>eD?Ae<=HABDF?<;@BCDd=KCBDIBHdAIIfg2B;BCDCDAh=DIB5iDHA>Id;BE=ED?<;@jklmBC<;GKCjnmF=A@DBD<A>FGEB;lopdD>KBCI5cd;`ars^rON`NO`t`^u`vuOs^Qw`t`N^OQxMP]Ma_yzI=edD|FDED>F=>K;>Id;BI=qD|IEAH=>KA>F>G@eId;BI53<;}H;>I=IBI;?Id;BI|>;<@Add~IEAHDFAhAdI|HGBED<ED>F=HGdA<B;BCDA=I;?BCDE=EDA>?<;@;>DD>F;?BCDE=EDB;BCD;BCD<5L;IBE=EDGEB;B};<;}I@;<DBCA>BCDIBABDFF=A@DBD<;s^QwMzQ[^ya^_]`aQ[QNz]QzN`usO` Oa^aybS]NOOa]`avOPzNa^[wOrs^Qw‚z[wZQwNO`rOrMN[u^\ƒM^a]MatOaQ^Ma`u_QQ^ay[b„…†‡ˆ‰Š‡‹Œ „…†‡ˆ‰Š‡ Œ „Ž ‘ „•–—–˜™š#$››•–—–˜™š#$››•–—–˜™š#$››•–—–j9 mjj {{j59jšj5žžoj58ool59Ÿš95šooœ5šoo{ž5žlšn5žlšjo5Ÿšojl5Ÿšo {{{{{{{{š5šž9{{{{5nœoj5ošoj59jšj5žžoj58ool59Ÿš95šooœ5šoo{ž5žlšn5žlš{{5jœŸ5jšœ5jŸ85j8j5loo5ljn59oo599Ÿ{5œ9l5šoo{{{{5j995jœo5jœš5jšœ5ljž5l9Ÿ{5lno59ll59žš5œož {{{{{{{{59lŸ{{{{{{{{{{{œ5šooš5šž9{{{{ !"+,-$ 3 467/86190:23.;60<=>9?8;9=?946050<50A9?4546GIJKLMNOPLGQJRSTUDEVNKKDWXdaea`f[eg]_h[`[eZ]Z[_i_]j_kj[deahl]mnaa`o_bpd_\`pe]bmq (uv&wywxz#(uv&wywxz#X++Q X+G+ X+GI X+G{X+I+ X+I{ X+IQ X+*+X+|+3::33}}~~~3::33}}~~~ €€3:3:}3}3:::: ::::3~3~}}}}~:~::€:€ ~: ~:333333:3€3€}}}}€~3€~3:::}}}}~~}}}}}~ 3~ 3:: 3 3 3 ~3 ~}3~}3 ~ ~:3:3:3~~:}:}:3:3: : : :~3 ,-./012 FGHHIJ/K/-0L/0/M6./.2J/J-OPJOPQJ6LKJOJ-0O./ L/6PL/-/-./J-6 KJ./-N6P/.JN 66/-O6PU//J/J6-/6O-.NJ6/6-NJJ-JN/6P-V6JN// /N/2/ JPJOP0 /WN-/ L/6PL/-/K /6./X/6P-/Y5.-Y-.6P/PNWSZ[/6/.-.W- /. 6/6J-OJ-6[R\YT1Y[ZRYZRY/Y.-Y6P/6MJP/NJ-..N6J0L/O2J/JN-W6/./6/6RST2J/6/P-OL6NJ6JO6/P].-6J-WN.NOJ-OJ-.JQJ6LY-.6P/W/6L6PW2J.J-O -6J-/W6P/N6/-./2O2J/J-6P/2J.J-OJ-.6L6.L//.J-O^1[XR0V_`ab6Jc6/ 5/6./Z-66UJ6P1J4-dJ,-./Z-/6/12eY-.Z/QJ/N/-6^KJ2/J-bZ^eNJ/./JO-/.6N//66P/N66J-O/-6/QJ/N/-6J ./.UJ6PJ-6P/6J6OJ./J-/f1SgVZ/6JWJ/.X-O/N/-61L6/NGF/J6O-.NJ6/NJO6J-/2J.J-O/-K/ UP/- /LJ-6/.6 KJ./J-WN6MJ3PNWP/NJf6-2/J-6/. JK/6JK/-6L6/N/M6/-.J-O6P/J.J-OJ-.J-OWYU-.U /cP/-. JK/L6/NJ6J/NN/-./.6J-./6/.L6/NUJ6PN be6P6.2/-K/6/.6--6L6/NUJ6P /L./JO-/.K/-6J6J-W-U6 6/6LWJ-O-.J6/0/-J6JK/W-JPJ-OJ-6P/2J.J-OhJ-6/JJ6/-.U6/K NJO6J-YO/6L/.J-O6J-YN.-../O.6J-k lHIlJKJ2/J-VhMVah6J]/K/O/^/W./.-P/KL0.6L//J-P-.J-O-.J-66J-S6P/6NJ]/6LU/././N/KJ2/2/.-NJ-JNN/QJ/N/-6f-66J-J-66J--.^1[XR0V_`a6J-N -L/P …H HIG5.-J/X/6P-/J/SZJ/U-WJ/.J/ f-6J,-./012d-.6J-c ! "#$%&'()&*+,-)./0-)$*121345 ! !6!"7 6 !!!"6""589:;<=>66" ?@ABCDEBFG AEIJKLMRQTRUQRVPW SUNQOSXY UQ[_`]abc]hh jkf_[l mn n"o;;nmb:8r =stbf`[dfj_589:;w=o xy5885z{xl]d^]_qde 589:;o=8s}7ttm~ot6 ;nm]hfhd[_`]589:7;wns m<nn_`]_]pk[d]^f[l 589:;o=8w589:s< n"nnstb}6u‚‚‚ ~n"nn<=b}m=‚u‚_`][vd]^`j_ƒfdfj_f_q ][h„^]k]_d[h[…j†]\]^k][_`] 589:;o=8tzs<8;;zs<8;mzs<8;>zs<n"nnwsn"nnwsn"nnswn"n;;>n"nnomn"nnomn"nn<=n"nnw=589:s< n"nn=nb6u n"nnmtb]]^k][_`]8ˆ;";>;n‰Š‹Œ Ž ‘’“”•–;n—|b]]^k][_`]8ˆ;"ow;n‰Š‹Œ Ž ‘’˜”™•;n—|b_‡]_]\]^k][_`]8ˆ;"m>;n‰Š‹Œ Ž ‘’“”“™;n‰›bšl]_]h\]^k][_`]8ˆ;";w;n‰Š‹Œ Ž ‘’“”Ÿ˜;n‰›b_]]^k][_`]8ˆ;";n;n‰Š‹Œ Ž ‘’“”™“;n‰›bq]_„lvfƒ]8s ;"smŠ b^j]dešl]_]€d`] 8ˆw"<<;n——ub;"no;n‰›bj^j]dešl]_]€\`] 8ˆw"mm;n——ub;"n=;n‰›bfvv„hfj_`j]vvf]`f]_d¡;m=bnmbso ¢;";;n;>mb_]]^k][_`]589:7;=>=>"<t—ubc9£}c9£~¤n">mybu¥¥„k d[df`„h]d]k\]^[d„^];tn¦r tm¦xkd[df`„h]d]k\]^[d„^]wn¦r ow¦x6"¯ 6mn° "r"6x 9r:x yy7b byy7cz:a£!z² 6cc³58xb8mn;o"}x66´ 6 ; b|"~9 x9x¤ 666 6x{9x 67£!zµ ¶trmn;t" 66 66¤ 8 6} ¸8~9 8 ¯x!xx } ~c"Ê&41ËÌ&4Í1Î1/4&Ï&.'+3&Ð)1ÑÒ1Ó.3)1//&4Í1'ÐÔ/1/4$41ÑÓ4Í1/1$'14Õ%Ô*$)%'&%1'4ÕÖ$).1/$3Ñ$'1Ô3413Ñ1Ñ$/Ò.3&4$//%1*ÔÏÔ*$4Ô&3)Ô2Ô4/×ØÍ12Ô*$)'1/Ô/4$3*1Ó&Ñ&'4'$3/2Ô//Ô&3Ó)&3Ò1ÖÔ4Õ$/Ð1))$/&4Í1'%1'Ï&'2$3*1*'Ô41'Ô$Ô/3&4ÔÒÔÖ13$3Ñ$*4.$)41/4Ô3Ò2./4Î1%1'Ï&'21ÑÏ&'$%%)Ô*$ÎÔ)Ô4ÕÔ3/%1*ÔÏÔ*$%%)Ô*$4Ô&3/$3ÑÙ&'*&3ÑÔ4Ô&3/×#ÚÛÜÝÞßàÛäÛååÛÊÌÚÞâÛâÌãÌæÞÜÚÌÊÞââÜãåÛâ-ÞØÚÜÚØçâÞãåàÞåØæÛÊÌÛ(ÚÝÚÌèãÜ-åãéçØÌâåÞÜÞååÞéÌãÓ3&Ò.$/$4Ô/Ï$*4&'Õ'1/.)4/Ï'&2'1)Ô$3*1.%&3*&34$Ô31ÑÔ3Ï&'2$4Ô&3&''1*&2213Ñ$4Ô&3/$3ÑÑÔ/*)$Ô2/$)))Ô$ÎÔ)Ô4ÕÏ&''1/.)4Ô3Ò ð·ÙììÖÔ$Ï)1ê×*&2ÐÐÐ×ÖÔ$Ï)1ê×*&2 ACCESSORIES SEAMING TAPES & OTHER ACCESSORIES FOR PLASTIC SHEETING Butyl Seal Tape (TP2BR / TP6BR) Butyl Seal is a double-sided reinforced aggressive black butyl rubber tape used to join panels of polyethylene and polypropylene together by overlapping the edges and applying Butyl Seal in between. It is also used to adhere to concrete walls and footings when properly prepared. Butyl Seal is non-hardening and flexible. Available in 2” x 50’ and 6” x 50’ rolls. R25B Tape (R25B) R25B Tape is a single-sided aggressive synthetic elastomeric adhesive that bonds instantly to properly prepared polyethylene and polypropylene. The black polymer backing and adhesive is specially formulated to provide years of performance even in direct sunlight. A poly release liner provides for ease of installation. Available in 4” x 100’ roll. ACCESSORY TAPES AND EPOXY VaporBond™ Tape (TVB4) VaporBond™ Tape is a white single-sided tape that combines a heavy-duty, weather-resistant polyethylene backing with an aggressive rubber adhesive. VaporBond™ Tape offers excellent seaming capabilities for our materials with an “Easy Tear” feature to reduce installation time. TVB4 has a WVTR of 0.18 perms per ASTM D3833. Typical applications include vapor retarders, covers and liners. Available in 4” x 210’ roll. VaporSeal™ Tape (TVSP4/TVSP12) VaporSeal™ Tape is a patent pending single-sided 7-layer gas barrier tape with a release liner for ease of installation. The backing contains a layer of highly impermeable EVOH designed to block migration of radon, methane, and VOC’s. An aggressive acrylic adhesive provides outstanding adhesion to polyethylene over a wide temperature range. Typical uses include joining, repairing and sealing gas/moisture barriers. Available in 4” x 160’ and 12” x 50’ rolls. VaporBoot™ Tape (TBOOT) VaporBoot™ Tape is a single-sided elastomeric butyl tape used to complete pipe boot installations (sealing the boot to the pipe). The 100% stretchable butyl adhesive features excellent adhesion values and 3-D stretching that can be easily molded to multiple surfaces without any creases and folds. Available in 2” x 16.4’ roll. ADDITIONAL ACCESSORIES VaporBoot™ System (VBOOT) The VaporBoot™ System is designed to assist in securing pipe and other penetrations that run vertically through the vapor retarder material. The VaporBoot™ System offers a quick solution and is delivered to the jobsite in a complete package. VaporBoots are produced from high performance VaporBlock® material. Package Contents: 25 - VaporBoots (18” x 18”, w/precut center marker) 1 Roll VaporBoot (TBOOT)Tape 2‘x16.4‘1 roll of Vapor Bond Tape (TVB4) 4‘x210 VaporBoot™ Plus Preformed Pipe Boots (VBPBT) VaporBoot™ Plus Preformed Pipe Boots are produced from heavy 40 mil co-extruded polyethylene and barrier resins for excellent strength and durability. The preformed boots are stepped to fit 1” to 4” wide pipe penetrations. VaporBoot™ Plus Preformed Pipe Boots are available in quantities of 12 per box. From tie-d own fasteners to field seaming tape, Viaflex has the accessories you need to maximize your film’s versatility and minimize installation time on the job. POUR-N-SEAL™ (PNS1G) POUR-N-SEAL™ is a gray two part epoxy used to seal around multi-pipe penetrations in areas where pipe boots are not practical, when installing underslab barriers. The POUR-N-SEAL™ system installation guide references a 1” x 25 lineal feet adhesive-backed foam to form a dam around multi-pipe penetrations to contain POUR-N-SEAL™ during the setting process. The 1” x 25 ft. adhesive-backed foam is sold seperately as FOAM25. © 2022 VIAFLEX, INC. All rights reserved. ACCESSORIES Tie-Down Buttons (BUTI) & Tarp Grabbers (BUTEZ) Tie-Down Buttons and Tarp Grabbers help keep plastic sheeting securely in place. Tie-Down Buttons are designed to eliminate traditional grommets in plastic sheeting up to 10 mil thick and are reusable plastic fittings that are easy to install in any position. Tarp Grabbers are up to 4 times stronger than a brass grommet and are typically used in heavier plastic sheeting from 10 mil to 30 mil thick. Great for equipment covers, large storage covers and truck tarps. ADDITIONAL ACCESSORIES (CONTINUED) Dura♦Skrim® Reinforced Sandbags Dura♦Skrim® reinforced sandbags are used to secure large covers and liners to prevent wind damage. Sandbags are produced with strong Dura♦Skrim® 8 & 12 mil reinforced polyethylene. These 15” wide x 24” long bags are designed to hold 35 lbs. Sandbags are also available in other VIAFLEX reinforced materials with minimum order requirements. 11.8” Cable Ties are also available. Dura-Clip™ (CLIP11) VIAFLEX Welding Rod These full size clips are 11” long and fit most commercial scaffolding. Dura-Clip™ will securely fasten your poly sheeting to scaffolding, reducing wind whip and increasing the life of your enclosure. The Dura-Clip™ is normally placed about every 3’ onto the enclosure. VIAFLEX Welding Rod is used for field seaming, repairs and detail work, such as installing pipe boots. Packaged in 25 lb spools, it is available in 4mm and 5mm sizes to fit most brands of extrusion guns. VIAFLEX Welding Rod is made from a thermally UV stabilized LLDPE resin and is available in both black and white to correspond with the color of geomembranes being utilized. SEAMING TAPES & OTHER ACCESSORIES FOR PLASTIC SHEETING TAPE ACCESSORY PROPERTIES PROPERTIES VaporBond Tape(TVB4)VaporSeal Tape(TVSP4 / TVSP12)VaporBoot Tape(TBOOT)R25B Tape(R25B)Butyl Seal Tape(TP2BR / TP6BR) Backing 6.7 mil Polyethylene 7 mil EVOH/LLDPE 30 mil EPDM 8 mil Multi-Polymer N/A Adhesive 3.3 mil Rubber Based Pressure-Sensitive 2 mil Acrylic Adhesive Pressure-Sensitive 20 milButyl Rubber 17 milSynthetic Elastomeric 40 milButyl Rubber Color White Silver Black Black Black Type Single Sided Single Sided Single Sided Single Sided Double Sided Size 4” x 210’4” x 160’ / 12” x 50’2” x 16.4’4” x 100’2” x 50’ / 6” x 50’ Rolls per Case 12 12 / 4 64 6 16 / 4 Weight per Case 45 lbs 50 lbs / 18 lbs 45 lbs 33 lbs 47 lbs / 20 lbs Adhesion Values 35 oz. / in. (to steel)80 oz. / in. (to steel)145 oz. / in. (to steel)144 oz. / in. (to steel)88 oz. / in. (to steel) Perms 0.081 g/(24h*100 in²)0.014 g/(24h*100 in²)N/A <0.005 g/(24h*100 in²)0.82 g/(24h*100 in²) Service Temp.-40° F to +180° F -40° F to +190° F +14° F to +122° F +20° F to +180° F 0° F to +170° F Min.Application Temp.50° F 50° F 14° F 35° F 35° F Ideal StorageTemp. / Humidity 70° F w/ 40-50 %60°-80° F w/ 40-60 %70° F w/ 70 %70° F w/ 40-50 %70° F w/ 40-50 % Note: To the best of our knowledge, unless otherwise stated, these are typical property values and are intended as guides only, not as specification limits. Chemical resistance, odor transmission, longevity as well as other performance criteria is not implied or given and actual testing must be performed for applicability in specific applications and/or conditions. VIAFLEX MAKES NO WARRANTIES AS TO THE FITNESS FOR A SPECIFIC USE OR MERCHANTABILITY OF PRODUCTS REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations and disclaims all liability for resulting loss or damage. Limited Warranty available at www.viaflex.com 27-0016 05/23 sales@viaflex.com www.viaflex.comScan QR Code to download technical data sheets. VIAFLEX, INC.821 W Algonquin Street Sioux Falls, SD 57104 Ph: +1 (605) 335-0174 • TF: +1 (800) 635-3456© 2022 VIAFLEX, INC. All rights reserved. Viaflex, Inc.821 W Algonquin Street Sioux Falls, SD 57104Ph: +1 (605) 335-0174 • TF: +1 (800) 635-3456 sales@viaflex.com www.viaflex.com 012116 EFD 1319 HIGH-STRENGTH EPOXY BONDING ADHESIVE POUR-N-SEAL™ PRODUCT NAMEPOUR-N-SEAL™ (P/N: PNS1G) MANUFACTURERViaflex, Inc.821 W. Algonquin StreetSioux Falls, SD 57104 PRODUCT DESCRIPTIONPOUR-N-SEAL™ is a gray two-part medium viscosity high strength epoxy used to seal around multiple pipe penetrations in tight areas where pipe boots are not practical, when installing VaporBlock® moisture and gas barriers. TECHNICAL DATAApplicable Standards:• ASTM (American Society for Testingand Materials)• ASTM C881 Standar��Epoxy-Resin-Base Bonding Systems forConcrete• ASTM D695 Standard Test Method forCompressive Properties of Rigid Plastics• ASTM D638 Standard Test Method forTensile Properties of Plastics• ASTM C882 Standard Test method forBond Strength of Epoxy-Resin SystemsUsed with Concrete by Slant Shear• ASTM Standard Test Method for��emperature of Plastics Under Flexural Load in the Edgewise Position• ASTM D570 Standard Test Method forWater Absorption of Plastics MATERIAL PREPARATIONStore material overnight to precondition at a temperature between 70° F to 80° F prior to use. INSTALLATION1. POUR-N-SEAL™ is used to sealmoisture and gas barriers to multiple pipepenetrations in situations where pipe bootsare not able to be installed due to the tightconcentration of the pipe penetrations.2. Install the vapor/gas barrier as close aspossible to the penetrations by making asmall opening. Effort should be given tominimize large gaps in the barrier next tothe penetrations, this will also reduce theamount of POUR-N-SEAL™ necessary tocomplete an acceptable seal.3. To help concentrate the sealant aroundthe pipe penetration, a dam can be formedaround the pipe grouping with an adhesivebacked weather stripping foam. One galloncovers 80 sq. ft. at a thickness of 20 mils. 4.Only mix the amount of material that can be used within the pot life of the epoxy, approximately 36 minutes at 73° F. Premix each component prior to combining. Pour “A” and “B” components together and thoroughly mix using a low speed drill with a mixing paddle. Scrape the sides and bottom to assure a consistent blend.5.Once mixed, pour contents around the pipe penetrations, if needed a brush or flat wooden stick can be used to direct the sealant completely around all penetrations and overlap the moisture/gas barrier to form a continuous seal. Avoid Contact with skin (see SDS for complete safety precautions). Immediately dispose of any remaining mixed POUR-N-SEAL™ epoxy left in the container to avoid excessive heat buildup.6.Depending upon the temperature. POUR-N-SEAL should be tack free in approximately 5 hours. STORAGE/SHELF LIFEStore in dry environment between 40º F and 80º F (4º C-27º C). Do not allow product to freeze. Shelf Life: 12 months from date of manufacture in unopened containers properly stored. Protect from moisture. AVAILABILITYPlease call your local construction supply distributor for availability of POUR-N-SEAL™ or call our toll free number at 800-635-3456. SAFETYPOUR-N-SEAL™ “B” component contains amines and may cause severe burns upon skin contact for any length of time. Use OSHA-approved personal protective equipment (PPE), including safety glasses, gloves and ��space equipment/ TEST DATA Compressive Strength ASTM D-695 11,070 Compressive Modulus of Elasticity ASTM D-695 370,000 Tensile Strength ASTM D-638 3,480 Tensile Modulus of Elasticity ASTM D-638 429,000 Tensile Elongation ASTM D-638 1.2 % Bond Strength (dry cure) - 2 day ASTM C-882 3,390 Bond Strength (dry cure) - 14 day ASTM C-882 3,600 Shore Hardness D scale 86 D ��ASTM D-648 120° F (49° C) Water Absorption ASTM D-570 < 1 % procedures if applicable. Avoid skin contact; do not ingest. See SDS for complete safety precautions. For professional use only. WARRANTYViaflex warrants its products to be free from manufacturing defects and that products meet the published characteristics when tested in accordance with ASTM standards. No other warranties by Viaflex are expressed or implied, including no warranty of merchantability or fitness for a particular purpose. Viaflex will not be liable for damages of any sort resulting from any claimed breach of warranty. Viaflex's liability under this warranty is limited to replacement of material or refund of sales price of the material. There are no warranties on any product that has exceeded the “shelf life” or “expiration date” printed on the package label. 27-0202 02/23 TURBINE VENTILATORS CONSTRUCTION SPECIFICATIONS “A” THROAT SIZE GUAGE NO. OF BRACES BRACE MATERIALCROWN GALV.BLADE GALV.THROAT GALV. 4 24 28 26 3 ALUMINUM 6 24 28 26 3 ALUMINUM 8 24 28 26 3 ALUMINUM 10 24 28 26 3 ALUMINUM 12 24 28 24 3 ALUMINUM 14 22 26 24 3 ALUMINUM 16 22 26 24 3 STEEL 18 22 26 24 4 STEEL 20 20 26 24 4 STEEL 24 20 26 22 4 STEEL DIMENSIONAL AND PERFORMACE DATA “A” THROAT SIZE “B” HEIGHT “C” OVERALL WIDTH EXHAUSTED CAPACITY* APPROX. SHIPPING WEIGHT 4 12 10 1/4 125 5 6 14 1/2 12 3/4 147 7 8 15 14 1/4 255 8 10 16 1/4 16 1/4 425 11 12 17 19 631 13 14 19 3/4 22 3/4 700 21 16 21 3/4 25 1/2 950 31 18 24 29 1200 38 20 25 1/4 31 5/8 1700 46 24 28 1/4 35 3/4 2350 58 *4 MPH WIND CFM Dimensional Data (inches and [ mm ]) are Subject to Manufacturing Tolerances and Change Without Notice SPECIFICATION SHEET TAG _______ * Regularly furnished unless otherwise specified. Zurn Industries, LLC | Light Commercial Plumbing Products 1801 Pittsburgh Avenue, Erie, PA U.S.A. 16502 · Ph. 855-663-9876, Fax 814-454-7929 In Canada | Zurn Industries Limited 3544 Nashua Drive, Mississauga, Ontario L4V 1L2 · Ph. 905-405-8272, Fax 905-405-1292 www.zurn.com Rev. C Date:12/13/17 C.N. No.139307 Prod. | Dwg. No.CO2450 CO-2450 ADJUSTABLE FLOOR CLEANOUT Typical Installation 'A' Connections 'B' CO‐2450‐PV2 2 [51] PVC Hub 1‐3/4 [44] CO‐2450‐PV3 3 [76] PVC Hub 3 [76] CO‐2450‐PV4 4 [102] PVC Hub 3‐7/16 [87] CO‐2450‐AB2 2 [51] ABS Hub 1‐3/4 [44] CO‐2450‐AB3 3 [76] ABS Hub 3 [76] CO‐2450‐AB4 4 [102] ABS Hub 3‐7/16 [87] Product Dimensions in In [mm]Engineering Specification: Zurn CO-2450 Adjustable Floor Cleanout, recommended for foot traffic and light-duty applications. This cleanout is furnished with a PVC or ABS body, with an adjustable nickel cover and an ABS taper thread plug. OPTIONS (Check/specify appropriate options) PRODUCT ____ CO-2450-PV2 ____ CO-2450-PV3 ____ CO-2450-PV4 ____ CO-2450-AB2 ____ CO-2450-AB3 ____ CO-2450-AB4 SUFFIXES ____-CM Carpet Marker ____-VP Vandal Proof Applies to PV3, PV4 AB3 and AB4 Appendix D Installation Inspection Photographs and Inspection Log Photograph 2: General view of installed gravel and sub-slab piping at the riser room of Building B. 2923 S. Tryon Street, Suite 100 Charlotte, NC 28203 704.586.0007(p) 704.586.0373(f) Photograph 1: General view of installed gravel and sub-slab piping at Building B. THE PERCH – BUILDING B CHARLOTTE, NORTH CAROLINA BROWNFIELDS PROJECT NO. 25035-21-060RM R - 0 1 3 Photographs 3a & 3b: General views of installed vapor barrier (Vaporblock Plus 20) at Building B. 2923 S. Tryon Street, Suite 100 Charlotte, NC 28203 704.586.0007(p) 704.586.0373(f) THE PERCH – BUILDING B CHARLOTTE, NORTH CAROLINA BROWNFIELDS PROJECT NO. 25035-21-060RM R - 0 1 3 Photographs 4a, 4b, & 4c: General view of installed vertical risers at with proper pitch and labeling. 2923 S. Tryon Street, Suite 100 Charlotte, NC 28203 704.586.0007(p) 704.586.0373(f) THE PERCH – BUILDING B CHARLOTTE, NORTH CAROLINA BROWNFIELDS PROJECT NO. 25035-21-060RM R - 0 1 3 Photographs 5a, 5b, & 5c: Representative views of exhaust pipes and wind-driven turbine ventilators installed on roof with proper labeling, ventilators circled in red. 2923 S. Tryon Street, Suite 100 Charlotte, NC 28203 704.586.0007(p) 704.586.0373(f)RM R - 0 1 3 THE PERCH – BUILDING B CHARLOTTE, NORTH CAROLINA BROWNFIELDS PROJECT NO. 25035-21-060 Photographs 6a & 6b: Representative views of trench dams installed along Building B. 2923 S. Tryon Street, Suite 100 Charlotte, NC 28203 704.586.0007(p) 704.586.0373(f)RM R - 0 1 3 THE PERCH – BUILDING B CHARLOTTE, NORTH CAROLINA BROWNFIELDS PROJECT NO. 25035-21-060 Category Example Criteria Proper base layer (i.e., gravel, aerated flooring) and thickness Proper placement, type, and pitch of VIMS vent piping Proper placement, type, and pitch of monitoring points Correct vapor barrier type Proper vapor barrier overlap and seals around penetrations per manufacturer instructions Proper vapor barrier installation along vertical walls (e.g. retaining walls, elevators, etc.) Good condition of vapor barrier Riser pipe material and fitting connections Proper pitch towards sub-slab (gravity drain) Appropriate VIMS labels Correct fan/ventilator Fan/ventilator operation Proper fittings and protection (varmint screens, electrical covers, etc.) Appropriate VIMS labels Proper distance from roof intakes and parapets Pilot test completed Monitoring points finished and accessible Utility Trench Dams Trench dams installed per VIMP details and specifications SMS Vapor Intrusion Mitigation System - Inspection Checklist Building/Area ID: Building B Start Date and End Date: February 2023 - March 2024 H&H Construction Manager: Shannon Switch Proper Installation (Initial below) Site Name and H&H Project #: National Welders Supply, RMR-013 DEQ Brownfields ID: 25035-21-060 Sub-Slab Vapor Barrier Vent Riser Piping SMS SMS SMS SMS SMS SMS Pilot Test / Checkout SMS SMS SMS SMS SMS SMS SMS Fan/Ventilator SMS SMS SMS SMS https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Ram Realty - RMR/RMR-013 Gesco Street/VIMS Install Reports/Bld. B/VIMS Inspection Checklist\Template Appendix E Field Forms Appendix E-1 Summary of Influence Testing Data National Welders Supply Charlotte, North Carolina H&H Project No. RMR-013 Baseline Initial Follow-up AMG Eagle Extreme Roof E-11 0.000 -3.002 -3.042 AMG Eagle Extreme Roof E-12 0.000 -2.543 -2.512 AMG Eagle Extreme Roof E-13 0.000 -2.720 -2.743 AMG Eagle Extreme Roof E-14 0.000 -3.625 -3.637 -- -- MP-14 0.000 0.000 0.000 -- -- MP-15 0.000 -0.080 -0.085 -- -- MP-16 0.000 -0.042 -0.046 -- -- MP-17 0.000 -0.175 -0.180 -- -- TMP-3 0.000 0.000 0.000 Extraction Point AMG Eagle Extreme Floor 1 E-B1 0.000 -3.555 -3.560 Monitoring Point ----MP-14 0.000 -0.266 -0.269 Temporary MP ---- Temp-B1 0.000 -0.245 -0.247 Extraction Point AMG Eagle Extreme Floor 1 E-B2 0.000 -3.785 -3.746 Monitoring Point ----TMP-3 0.000 -0.612 -0.615 Temporary MP ---- Temp-B2 0.000 -0.588 -0.600 2/1/2024 Building B Stair B1 Building B Stair B2 Building B Vacuum Measurements (in-WC) 1/18/2024 Extraction Point Monitoring Point Date Point Type Fan Type Point IDArea Tested Fan Location https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Ram Realty - RMR/RMR-013 Gesco Street/VIMS Install Reports/Bld. B/Pilot Test Appendix E-1 (Page 1 of 1) Hart & Hickman, PC Form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ote: Leak Test Requirements Per NC DEQ DWM Vapor Intrusion Guidance, leak test passes if helium concentration in purge air is less than 10% of helium concentration in shroud. / OHQJWKRIWXELQJSLSHIW D IRUGLDPHWHU/IW D IRUGLDPHWHU/IW C:\Users\mvawter\Dropbox\yOther\Form Edits\IAQ-SSV\Vapor Sampling Forms_V6.0 Sub-Slab / Soil Gas Sampling Vapor Installation Field Form ,ĂƌƚΘ,ŝĐŬŵĂŶ͕W RMR-013 DJH 40s-60s, overcast MP-16 11365 SS Perm.Concrete 4 Gravel NA Full 2/16/24 1008 52 Pump 15 12.1 0 ppm Yes 17602 MP-17/MP-DUP 11367/15805 SS Perm.Concrete 4 Gravel NA Full 2/16/24 1054 52 Pump 15 10.5 0 ppm Yes 13124 MP-14 11355 SS Perm.Concrete 4 Gravel NA Full 2/16/24 1138 52 Pump 15 11.1 0 ppm Yes 14312 NA = not a licable Form SV-2 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) S:%HJLQQLQJ C:0LGGOH R: (QG S:%HJLQQLQJ C:0LGGOH R: (QG S:%HJLQQLQJ C:0LGGOH R: (QG S:%HJLQQLQJ C:0LGGOH R: (QG S:%HJLQQLQJ C:0LGGOH R: (QG S:%HJLQQLQJ C:0LGGOH R: (QG 6 VDPSOH,'& FDQLVWHU,'5 UHJXODWRU,'66 VXEVODE6* VRLOJDV3HUP SHUPDQHQW7HPS WHPSRUDU\/DVWXSGDWHG +J LQFKHVRIPHUFXU\ 1RWHVBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB Size: Flow Rate: Size: Flow Rate: 6DPSOH,' Size: Flow Rate: Size: Flow Rate: Size: Flow Rate: Size: Flow Rate: 6DPSOLQJ,QIRUPDWLRQ ,QGRRU3DUDPHWHUV2XWGRRU3DUDPHWHUV 6DPSOLQJ 3HULRG Note: Per NC DEQ DWM Vapor Intrusion Guidance, shut-in test and helium leak check must be passed before sampling. C:\Users\mvawter\Dropbox\yOther\Form Edits\IAQ-SSV\Vapor Sampling Forms_V6.0 Sub-Slab / Soil Gas Sampling Vapor Sampling Field Form ,ĂƌƚΘ,ŝĐŬŵĂŶ͕W RMR-013 DJH 40s-60s, overcast MP-16 1.4 L11365 2/16/24 10 100 mL/min 1021 -20 52 60 54 17602 1028 -5 1016 -29 52 MP-17/MP-DUP 1.4 L 1102 -29.5 11367/15805 2/16/24 10 1107 -19 54 57 52 57 100 mL/min13124 1113 -5 MP-14 1146 -311.4 L11355 2/16/24 10 56 54 52 58 14312 100 mL/min 1151 -21 1158 -6 INDOOR AIR BUILDING SURVEY and SAMPLING FORM Site Name: ____________________________________ Preparer’s name: ________________________________ Preparer’s affiliation: ____________________________ 6LWH,'#: ______________________ Date: __________________________ Phone #: _______________________ Part I - Occupants Building Address: ____________________________________________________________________ Property Contact: _______________________________ Owner / Renter / other: ______________ Contact’s Phone: home ( )__________ work ( )______________ cell ( )____________ # of Building occupants: Children under age 13 _____ Children age 13-18 ______ Adults _____ Part II – Building Characteristics Building type: Describe building: ________________________________________ Year constructed: _________ Sensitive population:2WKHU(specify): _______________ Number of floors below grade: ______ Number of floors at or above grade: ______ Depth of basement below grade surface: ______ ft. Basement size: _______ ft2 Basement floor construction: Foundation walls: Basement sump present?<HV1RSumppump?<HV1R Rther (specify): ________________ other(specify)_______________B Water in sump?<HV1R Type of heating system (cKHFN all that apply): hot air circulation hot air radiation wood steam radiation heat pump hot water radiation kerosene heater electric baseboard other (specify): ________________________ Type of ventilation system (cKHFN all that apply): bathroom ventilation fans outside air intake central air conditioning mechanical fans individual air conditioning units kitchen range hood fan other (specify): _________________ Type of fuel utilized (cKHFN all that apply): Natural gas electric fuel oil wood coal solar kerosene Are the basement walls or floor sealed with waterproof paint or epoxy coatings? <HV1R The Perch Apartments RMR-013 Derek Haskell 2/15/24 Hart & Hickman (704) 586-0007 Gesco Street & State Street, Charlotte, NC Lee Aultman (Concorde Construction)Ram Realty 414 507-5426 Apartment building under construction 2024 0 5 Multi-Family Residentia one Concrete Cinder Blocks other (specify) _____________ Is there a whole house fan?<HV1R Septic system? <HV<HV%XWQRWXVHG1R Irrigation/private well? <HV<HV%XWQRWXVHG1R Type of ground cover outside of building:BBBBBBBBBBBBBBBBBBBBB Existing subsurface depressurization (radon) system in place?<HV1R 7\SHBBBBBBBBBBBB Sub-slab vapor/moisture barrier in place? <HV1R Type of barrier: ____________________________BBBBBBBBBBBBBBB Part III - Outside Contaminant Sources Other stationary sources nearby (gas stations, emission stacks, etc.): _____________________________ Heavy vehicular traffic nearby (or other mobile sources): ______________________________________ Part IV – Indoor Contaminant Sources Identify all potential indoor sources found in the building (including attached garages), the location of the source (floor and room), and whether the item was removed from the building 48 hours prior to indoor air sampling event. Any ventilation implemented after removal of the items should be completed at least 24 hours prior to the commencement of the indoor air sampling event. Potential Sources Location(s)Removed (Yes / No / NA) Gasoline storage cans Gas-powered equipment Kerosene storage cans Paints / thinners / strippers Cleaning solvents Oven cleaners Carpet / upholstery cleaners Other house cleaning products Moth balls Polishes / waxes Insecticides Furniture / floor polish Nail polish / polish remover Hairspray Cologne / perfume Air fresheners Fuel tank (inside building) Wood stove or fireplace New furniture / upholstery New carpeting / flooring Hobbies - glues, paints, etc. Soil and Concret N/A State and Gesco Street N/A N/A N/A In rooms where IAS-B1 and B2 were sampled Yes N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Asphalt VBP20 b ViaFlex Part V – Miscellaneous Items Do any occupants of the building smoke?<HV1RHow often? ______________ Last time someone smoked in the building? ____________ hours days ago Does the building have an attached garage directly connected to living space?<HV1R If so, is a car usually parked in the garage?<HV1R Are gas-powered equipment or cans of gasoline/fuels stored in the garage?<HV1R Do the occupants of the building have their clothes dry cleaned? <HV 1R If yes, how often?:HHNO\0RQWKO\7LPHVSHU\HDU Do any of the occupants use solvents in work?<HV1R If yes, what types of solvents are used? _______________________________________ If yes, are their clothes washed at work?<HV1R +DYHDQ\SHVWLFLGHVKHUELFLGHVEHHQDSSOLHGDURXQGWKHEXLOGLQJRULQWKH\DUG"<HV1R If so, when and which chemicals? _________________________________________________ Has there ever been a fire in the building?<HV1R If yes, when? _____________ Has painting or staining been done in the building in the last 6 months?Yes No If yes, when __________________ and where? ____________________________ Part VI – Sampling Information Sample Technician: ____________________________ Phone number:) _______ - __________ Sample SourceFKHFNDOOWKDWDSSO\ ,QGRRU$LU&UDZOVSDFH$LU6XE6ODE1HDU6ODE6RLO*DV([WHULRU6RLO*DV Sampler TypeFKHFNDOOWKDWDSSO\ 7HGODU%DJ6RUEHQW6WDLQOHVV6WHHO&DQLVWHUOther (specify): _________________ Analytical Method:BBBBBBBBBBBBBBBBB2ther: _____________ Cert. Laboratory:BBBBBBBBBBBBB Sample locations (floor, room):BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB Field ID # _____ - ________________________Field ID # _____B-__________________________ Field ID #BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB)LHOG,'BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB Were “Instructions for Occupants” followed? ,IQRWGHVFULEHPRGLILFDWLRQVBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB on-going Other units not related to IA sampling Derek Haskell 1107887413 Waypoint Analytical IAS B IAS 1st Floor B1 BKG B2 TO-15 Provide Drawing of Sample Location(s) in Building Part VII - Meteorological Conditions Was there significant precipitation within 12 hours prior to (or during) the sampling event?Yes No Describe the general weather conditions: _________________________________________________ _____________________________________________________________________________________ Part VIII – General Observations Provide any information that may be pertinent to the sampling event and may assist in the data interpretation process (e.g., observed that drycleaner operated with door or windows propped open for ventilation). (Adapted from the NJDEP Vapor Intrusion Guidance, October 2005) 40-60s F, low humidity, sunny When performing the midpoint check, both doorways to B1 and B2 were open. H&H closed doors and added more tape so workers were not inclined to go in. Form IAS-1 ,QGRRU$LU6DPSOLQJ)LHOG)RUP 3URMHFW1RBBBBBBBBBBBBBBBBBBB 6DPSOHUBBBBBBBBBBBBBBBBBBBBBB :HDWKHUBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB 'DWH 3URSRVHG 6DPSOLQJ 'XUDWLRQ 7LPH&DQLVWHU 3UHVVXUH 'LIIHUHQWLDO 3UHVVXUH 2XWGRRU 7HPSHUDWXUH 2XWGRRU +XPLGLW\ ,QGRRU 7HPSHUDWXUH ,QGRRU +XPLGLW\ PPGG\\ +RXUV KU +J +2 R)R) S:%HJLQQLQJ C:0LGGOH R: (QG S:%HJLQQLQJ C:0LGGOH R: (QG S:%HJLQQLQJ C:0LGGOH R: (QG S:%HJLQQLQJ C:0LGGOH R: (QG S:%HJLQQLQJ C:0LGGOH R: (QG S:%HJLQQLQJ C:0LGGOH R: (QG 6 VDPSOH,'& FDQLVWHU,'5 UHJXODWRU,' 1RWHQHJDWLYHGLIIHUHQWLDOSUHVVXUHLQGLFDWHVWKDWLQGRRUSUHVVXUHZDVORZHUWKDQSUHVVXUHRXWGRRUV/DVWXSGDWHG +J LQFKHVRIPHUFXU\+2 LQFKHVRIZDWHUFROXPQ 7LPH(671RWHVBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB 3UHFLSLWDWLRQLQFKHVBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB %DURPHWULF3UHVVXUH+JBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB :LQG'LUHFWLRQBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB :LQG6SHHGPSKBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB Size: Flow Rate: Size: Flow Rate: Size: Flow Rate: Size: Flow Rate: ,QGRRU3DUDPHWHUV 6DPSOLQJ 3HULRG 6DPSOLQJ,QIRUPDWLRQ 2XWGRRU3DUDPHWHUV 6DPSOH,' Size: Flow Rate: Size: Flow Rate: C:\Users\mvawter\Dropbox\yOther\Form Edits\IAQ-SSV\Vapor Sampling Forms_V6.0 Indoor Air Sampling Field Form ,ĂƌƚΘ,ŝĐŬŵĂŶ͕W RMR-013 DJH 40-60s F, low humidity, sunny IAS-B2/IAS-DUP 0918 -29 0.000 46 69 54 406 L42646/36114 2/15/24 24 1607 -23 0.000 65 36 70 25 17263 0.25 L/hr 0935 -6 0.000 48 66 54 50 IAS-B1 0928 -29 0.000 46 69 59 546 L36113 2/15/24 24 1614 -22 0.000 65 36 70 25 16203 0.25 L/hr 0902 -4.5 0.000 48 66 54 50 BKG-B 0948 -30 0.000 46 69 NA NA6 L46854 2/15/24 24 1604 -23 0.000 65 36 NA NA 13111 0.25 L/hr 0900 -4 0.000 48 66 NA NA 0900 1600 0900 NA = not applicable 0.000 0.000 0.000 30.23 30.03 30.07 SW SW NE 4 14 6 Appendix F Laboratory Analytical Report Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis. 3/4/2024 Hart & Hickman (Charlotte) Juliana Lima 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 24-047-0029 Client Project Description: RMR-013-004 Dear Juliana Lima: Waypoint Analytical, LLC (Charlotte) received sample(s) on 2/16/2024 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 58 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 12/31/202399012State ProgramSouth Carolina Page 1 of 1 00016/24-047-0029 Page 2 of 58 Report Number: Sample Summary Table Client Project Description: 24-047-0029 RMR-013-004 Lab No Client Sample ID Matrix Date Collected Date Received 02/16/2024Air 97159 MP-DUP 02/16/2024 14:02 02/16/2024 11:02Air 97160 MP-17 02/16/2024 14:02 02/16/2024 10:16Air 97161 MP-16 02/16/2024 14:02 02/16/2024 11:46Air 97162 MP-14 02/16/2024 14:02 02/15/2024 09:18Air 97163 IAS-B2 02/16/2024 14:02 02/15/2024Air 97164 IAS-DUP 02/16/2024 14:02 02/15/2024 09:28Air 97165 IAS-B1 02/16/2024 14:02 02/15/2024 09:48Air 97166 BKG-B 02/16/2024 14:02 Page 3 of 58 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 24-047-0029 Report Limit Project:RMR-013-004 V 97159MP-DUP 152 02/19/2024 21:26TO-15 Acetone µg/m3 4.04 J1.14 02/20/2024 15:48TO-15 Benzene µg/m3 0.073 JB0.572 02/20/2024 15:48TO-15 Carbon Disulfide µg/m3 0.060 2.61 02/20/2024 15:48TO-15 Dichlorodifluoromethane µg/m3 0.134 7.90 02/20/2024 15:48TO-15 Ethyl Acetate µg/m3 0.136 J1.37 02/20/2024 15:48TO-15 Ethylbenzene µg/m3 0.106 J1.52 02/20/2024 15:48TO-15 Heptane µg/m3 0.143 J1.70 02/20/2024 15:48TO-15 n-Hexane µg/m3 0.047 5.66 02/20/2024 15:48TO-15 Isopropyl Alcohol µg/m3 0.139 264 02/19/2024 21:26TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48 J0.376 02/20/2024 15:48TO-15 4-Methyl-2-Pentanone µg/m3 0.121 2.84 02/20/2024 15:48TO-15 Methylene Chloride µg/m3 0.488 J0.613 02/20/2024 15:48TO-15 Naphthalene µg/m3 0.183 J1.21 02/20/2024 15:48TO-15 Styrene µg/m3 0.124 3.90 02/20/2024 15:48TO-15 Tetrachloroethene µg/m3 0.181 26.8 02/20/2024 15:48TO-15 Tetrahydrofuran µg/m3 0.107 5.51 02/20/2024 15:48TO-15 Toluene µg/m3 0.090 J1.65 02/20/2024 15:48TO-15 Trichlorofluoromethane µg/m3 0.130 J1.15 02/20/2024 15:48TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.393 02/20/2024 15:48TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 J1.70 02/20/2024 15:48TO-15 o-Xylene µg/m3 0.157 J4.35 02/20/2024 15:48TO-15 m,p-Xylene µg/m3 0.217 J6.05 02/20/2024 15:48TO-15 Xylene (Total)µg/m3 0.157 V 97160MP-17 118 02/20/2024 16:50TO-15 Acetone µg/m3 0.202 J1.09 02/20/2024 16:50TO-15 Benzene µg/m3 0.073 JB0.666 02/20/2024 16:50TO-15 Carbon Disulfide µg/m3 0.060 J2.45 02/20/2024 16:50TO-15 Dichlorodifluoromethane µg/m3 0.134 7.91 02/20/2024 16:50TO-15 Ethyl Acetate µg/m3 0.136 J1.30 02/20/2024 16:50TO-15 Ethylbenzene µg/m3 0.106 J1.45 02/20/2024 16:50TO-15 Heptane µg/m3 0.143 J1.63 02/20/2024 16:50TO-15 n-Hexane µg/m3 0.047 5.31 02/20/2024 16:50TO-15 Isopropyl Alcohol µg/m3 0.139 287 02/19/2024 22:11TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48 J0.311 02/20/2024 16:50TO-15 4-Methyl-2-Pentanone µg/m3 0.121 3.04 02/20/2024 16:50TO-15 Methylene Chloride µg/m3 0.488 Page 4 of 58 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 24-047-0029 Report Limit Project:RMR-013-004 V 97160MP-17 J1.19 02/20/2024 16:50TO-15 Styrene µg/m3 0.124 4.56 02/20/2024 16:50TO-15 Tetrachloroethene µg/m3 0.181 26.1 02/20/2024 16:50TO-15 Tetrahydrofuran µg/m3 0.107 5.37 02/20/2024 16:50TO-15 Toluene µg/m3 0.090 J1.54 02/20/2024 16:50TO-15 Trichlorofluoromethane µg/m3 0.130 J1.00 02/20/2024 16:50TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J1.50 02/20/2024 16:50TO-15 o-Xylene µg/m3 0.157 J3.95 02/20/2024 16:50TO-15 m,p-Xylene µg/m3 0.217 J5.45 02/20/2024 16:50TO-15 Xylene (Total)µg/m3 0.157 V 97161MP-16 354 02/22/2024 21:36TO-15 Acetone µg/m3 2.02 J4.10 02/22/2024 21:36TO-15 Dichlorodifluoromethane µg/m3 1.34 50.6 02/22/2024 21:36TO-15 Isopropyl Alcohol µg/m3 1.39 5580 02/20/2024 17:38TO-15 Methyl Ethyl Ketone (MEK)µg/m3 11.2 J5.35 02/22/2024 21:36TO-15 Methylene Chloride µg/m3 4.89 20.0 02/22/2024 21:36TO-15 Tetrahydrofuran µg/m3 1.07 J3.73 02/22/2024 21:36TO-15 m,p-Xylene µg/m3 2.17 J3.73 02/22/2024 21:36TO-15 Xylene (Total)µg/m3 1.57 V 97162MP-14 E1780002/20/2024 18:26TO-15 Acetone µg/m3 30.3 J26.3 02/19/2024 23:41TO-15 Isopropyl Alcohol µg/m3 2.78 585 02/19/2024 23:41TO-15 Methyl Ethyl Ketone (MEK)µg/m3 4.48 E2920002/20/2024 18:26TO-15 Tetrahydrofuran µg/m3 16.0 J7.01 02/19/2024 23:41TO-15 Toluene µg/m3 1.80 V 97163IAS-B2 133 02/22/2024 22:13TO-15 Acetone µg/m3 2.02 J1.38 02/20/2024 19:28TO-15 Benzene µg/m3 0.073 JB0.245 02/20/2024 19:28TO-15 Carbon Disulfide µg/m3 0.060 J0.720 02/20/2024 19:28TO-15 Chloromethane µg/m3 0.067 J2.36 02/20/2024 19:28TO-15 Dichlorodifluoromethane µg/m3 0.134 19.4 02/20/2024 19:28TO-15 Ethanol µg/m3 0.169 3.74 02/20/2024 19:28TO-15 Ethyl Acetate µg/m3 0.136 J1.40 02/20/2024 19:28TO-15 Ethylbenzene µg/m3 0.106 J1.44 02/20/2024 19:28TO-15 Heptane µg/m3 0.143 J1.60 02/20/2024 19:28TO-15 n-Hexane µg/m3 0.047 Page 5 of 58 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 24-047-0029 Report Limit Project:RMR-013-004 V 97163IAS-B2 J0.933 02/20/2024 19:28TO-15 2-Hexanone µg/m3 0.285 9.06 02/20/2024 19:28TO-15 Isopropyl Alcohol µg/m3 0.139 53.1 02/20/2024 19:28TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J0.352 02/20/2024 19:28TO-15 4-Methyl-2-Pentanone µg/m3 0.121 2.01 02/20/2024 19:28TO-15 Methylene Chloride µg/m3 0.488 2.38 02/20/2024 19:28TO-15 Styrene µg/m3 0.124 J0.800 02/20/2024 19:28TO-15 Tetrachloroethene µg/m3 0.181 57.5 02/20/2024 19:28TO-15 Tetrahydrofuran µg/m3 0.107 13.0 02/20/2024 19:28TO-15 Toluene µg/m3 0.090 J1.39 02/20/2024 19:28TO-15 Trichlorofluoromethane µg/m3 0.130 J1.42 02/20/2024 19:28TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.506 02/20/2024 19:28TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 J1.59 02/20/2024 19:28TO-15 o-Xylene µg/m3 0.157 J4.00 02/20/2024 19:28TO-15 m,p-Xylene µg/m3 0.217 J5.59 02/20/2024 19:28TO-15 Xylene (Total)µg/m3 0.157 V 97164IAS-DUP 130 02/22/2024 22:50TO-15 Acetone µg/m3 2.02 J1.33 02/20/2024 20:29TO-15 Benzene µg/m3 0.073 J0.797 02/20/2024 20:29TO-15 Chloromethane µg/m3 0.067 J2.41 02/20/2024 20:29TO-15 Dichlorodifluoromethane µg/m3 0.134 20.2 02/20/2024 20:29TO-15 Ethanol µg/m3 0.169 4.13 02/20/2024 20:29TO-15 Ethyl Acetate µg/m3 0.136 J1.41 02/20/2024 20:29TO-15 Ethylbenzene µg/m3 0.106 J1.43 02/20/2024 20:29TO-15 Heptane µg/m3 0.143 J1.74 02/20/2024 20:29TO-15 n-Hexane µg/m3 0.047 9.64 02/20/2024 20:29TO-15 Isopropyl Alcohol µg/m3 0.139 54.2 02/20/2024 20:29TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J0.307 02/20/2024 20:29TO-15 4-Methyl-2-Pentanone µg/m3 0.121 1.78 02/20/2024 20:29TO-15 Methylene Chloride µg/m3 0.488 2.51 02/20/2024 20:29TO-15 Styrene µg/m3 0.124 J0.698 02/20/2024 20:29TO-15 Tetrachloroethene µg/m3 0.181 57.9 02/20/2024 20:29TO-15 Tetrahydrofuran µg/m3 0.107 12.5 02/20/2024 20:29TO-15 Toluene µg/m3 0.090 J1.44 02/20/2024 20:29TO-15 Trichlorofluoromethane µg/m3 0.130 J1.49 02/20/2024 20:29TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.530 02/20/2024 20:29TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 Page 6 of 58 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 24-047-0029 Report Limit Project:RMR-013-004 V 97164IAS-DUP J1.64 02/20/2024 20:29TO-15 o-Xylene µg/m3 0.157 J4.16 02/20/2024 20:29TO-15 m,p-Xylene µg/m3 0.217 J5.80 02/20/2024 20:29TO-15 Xylene (Total)µg/m3 0.157 V 97165IAS-B1 145 02/22/2024 23:26TO-15 Acetone µg/m3 2.02 2.05 02/20/2024 21:29TO-15 Benzene µg/m3 0.073 JB1.06 02/20/2024 21:29TO-15 Carbon Disulfide µg/m3 0.060 J0.984 02/20/2024 21:29TO-15 Chloromethane µg/m3 0.067 2.49 02/20/2024 21:29TO-15 Dichlorodifluoromethane µg/m3 0.134 25.8 02/20/2024 21:29TO-15 Ethanol µg/m3 0.169 4.75 02/20/2024 21:29TO-15 Ethyl Acetate µg/m3 0.136 J1.67 02/20/2024 21:29TO-15 Ethylbenzene µg/m3 0.106 J1.43 02/20/2024 21:29TO-15 Heptane µg/m3 0.143 J1.27 02/20/2024 21:29TO-15 n-Hexane µg/m3 0.047 J0.954 02/20/2024 21:29TO-15 2-Hexanone µg/m3 0.285 11.2 02/20/2024 21:29TO-15 Isopropyl Alcohol µg/m3 0.139 17.0 02/20/2024 21:29TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J0.380 02/20/2024 21:29TO-15 4-Methyl-2-Pentanone µg/m3 0.121 J1.57 02/20/2024 21:29TO-15 Methylene Chloride µg/m3 0.488 2.42 02/20/2024 21:29TO-15 Styrene µg/m3 0.124 J0.590 02/20/2024 21:29TO-15 Tetrachloroethene µg/m3 0.181 72.5 02/20/2024 21:29TO-15 Tetrahydrofuran µg/m3 0.107 7.40 02/20/2024 21:29TO-15 Toluene µg/m3 0.090 J1.46 02/20/2024 21:29TO-15 Trichlorofluoromethane µg/m3 0.130 J1.65 02/20/2024 21:29TO-15 1,2,4-Trimethylbenzene µg/m3 0.110 J0.643 02/20/2024 21:29TO-15 1,3,5-Trimethylbenzene µg/m3 0.236 J1.82 02/20/2024 21:29TO-15 o-Xylene µg/m3 0.157 J4.74 02/20/2024 21:29TO-15 m,p-Xylene µg/m3 0.217 J6.56 02/20/2024 21:29TO-15 Xylene (Total)µg/m3 0.157 V 97166BKG-B 14.5 02/20/2024 22:30TO-15 Acetone µg/m3 0.202 J0.840 02/20/2024 22:30TO-15 Benzene µg/m3 0.073 J0.834 02/20/2024 22:30TO-15 Chloromethane µg/m3 0.067 J2.40 02/20/2024 22:30TO-15 Dichlorodifluoromethane µg/m3 0.134 B7.04 02/20/2024 22:30TO-15 Ethanol µg/m3 0.169 J0.529 02/20/2024 22:30TO-15 Ethyl Acetate µg/m3 0.136 Page 7 of 58 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 24-047-0029 Report Limit Project:RMR-013-004 V 97166BKG-B J0.890 02/20/2024 22:30TO-15 Ethylbenzene µg/m3 0.106 J0.418 02/20/2024 22:30TO-15 Heptane µg/m3 0.143 J0.525 02/20/2024 22:30TO-15 n-Hexane µg/m3 0.047 JB2.07 02/20/2024 22:30TO-15 Isopropyl Alcohol µg/m3 0.139 3.31 02/20/2024 22:30TO-15 Methyl Ethyl Ketone (MEK)µg/m3 0.224 J1.06 02/20/2024 22:30TO-15 Methylene Chloride µg/m3 0.488 1.72 02/20/2024 22:30TO-15 Tetrahydrofuran µg/m3 0.107 JB1.77 02/20/2024 22:30TO-15 Toluene µg/m3 0.090 J1.37 02/20/2024 22:30TO-15 Trichlorofluoromethane µg/m3 0.130 J1.17 02/20/2024 22:30TO-15 o-Xylene µg/m3 0.157 J3.32 02/20/2024 22:30TO-15 m,p-Xylene µg/m3 0.217 J4.49 02/20/2024 22:30TO-15 Xylene (Total)µg/m3 0.157 Page 8 of 58 Client: Hart & Hickman (Charlotte) CASE NARRATIVE Project: RMR-013-004 Lab Report Number: 24-047-0029 Date: 3/4/2024 Report Comments Revised Report: Revision 1 2-Hexanone was added to IA samples. Volatile Organic Compounds in Air- GC/MS Method TO-15 Sample 97162 (MP-14) QC Batch No: V43846/V43844 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Sample 97161 (MP-16) QC Batch No: V43981/V43976 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Page 9 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-DUP 97159 Matrix: 2/16/2024 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):02/20/24 09:00 V43931 02/19/24 09:00 152 µg/m3 4.04 95.0Acetone 20 02/19/24 21:26 V43934ENM 1.14 J µg/m3 0.073 1.60Benzene 1 02/20/24 15:48 V43894ENM <0.147 µg/m3 0.147 10.4Benzyl Chloride 1 02/20/24 15:48 V43894ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/20/24 15:48 V43894ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/20/24 15:48 V43894ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/20/24 15:48 V43894ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/20/24 15:48 V43894ENM 0.572 JB µg/m3 0.060 6.23Carbon Disulfide 1 02/20/24 15:48 V43894ENM <0.155 µg/m3 0.155 3.15Carbon Tetrachloride 1 02/20/24 15:48 V43894ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/20/24 15:48 V43894ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/20/24 15:48 V43894ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/20/24 15:48 V43894ENM <0.086 µg/m3 0.086 2.44Chloroform 1 02/20/24 15:48 V43894ENM <0.067 µg/m3 0.067 1.03Chloromethane 1 02/20/24 15:48 V43894ENM <0.161 µg/m3 0.161 3.44Cyclohexane 1 02/20/24 15:48 V43894ENM <0.151 µg/m3 0.151 3.841,2-Dibromoethane 1 02/20/24 15:48 V43894ENM <0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 02/20/24 15:48 V43894ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/20/24 15:48 V43894ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/20/24 15:48 V43894ENM 2.61 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/20/24 15:48 V43894ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/20/24 15:48 V43894ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/20/24 15:48 V43894ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 10 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-DUP 97159 Matrix: 2/16/2024 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):02/20/24 09:00 V43931 02/19/24 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/20/24 15:48 V43894ENM <0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 02/20/24 15:48 V43894ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/20/24 15:48 V43894ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/20/24 15:48 V43894ENM <0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 02/20/24 15:48 V43894ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/20/24 15:48 V43894ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/20/24 15:48 V43894ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/20/24 15:48 V43894ENM 7.90 µg/m3 0.136 1.80Ethyl Acetate 1 02/20/24 15:48 V43894ENM 1.37 J µg/m3 0.106 2.17Ethylbenzene 1 02/20/24 15:48 V43894ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 02/20/24 15:48 V43894ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/20/24 15:48 V43894ENM 1.52 J µg/m3 0.143 2.05Heptane 1 02/20/24 15:48 V43894ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/20/24 15:48 V43894ENM 1.70 J µg/m3 0.047 1.76n-Hexane 1 02/20/24 15:48 V43894ENM <0.285 µg/m3 0.285 2.052-Hexanone 1 02/20/24 15:48 V43894ENM 5.66 µg/m3 0.139 4.92Isopropyl Alcohol 1 02/20/24 15:48 V43894ENM 264 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 02/19/24 21:26 V43934ENM <0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 02/20/24 15:48 V43894ENM 0.376 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/20/24 15:48 V43894ENM 2.84 µg/m3 0.488 1.74Methylene Chloride 1 02/20/24 15:48 V43894ENM 0.613 J µg/m3 0.183 2.62Naphthalene 1 02/20/24 15:48 V43894ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 11 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-DUP 97159 Matrix: 2/16/2024 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):02/20/24 09:00 V43931 02/19/24 09:00 <0.242 µg/m3 0.242 0.860Propene 1 02/20/24 15:48 V43894ENM 1.21 J µg/m3 0.124 2.13Styrene 1 02/20/24 15:48 V43894ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/20/24 15:48 V43894ENM 3.90 µg/m3 0.181 3.39 1 02/20/24 15:48 V43894ENM 26.8 µg/m3 0.107 1.47 1 02/20/24 15:48 V43894ENM 5.51 µg/m3 0.090 1.88 1 02/20/24 15:48 V43894ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/20/24 15:48 V43894ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/20/24 15:48 V43894ENM <0.087 µg/m3 0.087 2.731,1,2-Trichloroethane 1 02/20/24 15:48 V43894ENM <0.199 µg/m3 0.199 2.15 1 02/20/24 15:48 V43894ENM 1.65 J µg/m3 0.130 2.81 1 02/20/24 15:48 V43894ENM 1.15 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/20/24 15:48 V43894ENM 0.393 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/20/24 15:48 V43894ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/20/24 15:48 V43894ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/20/24 15:48 V43894ENM 1.70 J µg/m3 0.157 2.17o-Xylene 1 02/20/24 15:48 V43894ENM 4.35 J µg/m3 0.217 5.65m,p-Xylene 1 02/20/24 15:48 V43894ENM 6.05 J µg/m3 0.157 2.17Xylene (Total)1 02/20/24 15:48 V43894 Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 12 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-17 97160 Matrix: 2/16/2024 11:02 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):02/20/24 09:00 V43931 02/19/24 09:00 118 µg/m3 0.202 4.75Acetone 1 02/20/24 16:50 V43894ENM 1.09 J µg/m3 0.073 1.60Benzene 1 02/20/24 16:50 V43894ENM <0.147 µg/m3 0.147 10.4Benzyl Chloride 1 02/20/24 16:50 V43894ENM <0.150 µg/m3 0.150 3.35Bromodichloromethane 1 02/20/24 16:50 V43894ENM <0.153 µg/m3 0.153 5.17Bromoform 1 02/20/24 16:50 V43894ENM <0.115 µg/m3 0.115 1.94Bromomethane 1 02/20/24 16:50 V43894ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/20/24 16:50 V43894ENM 0.666 JB µg/m3 0.060 6.23Carbon Disulfide 1 02/20/24 16:50 V43894ENM <0.155 µg/m3 0.155 3.15Carbon Tetrachloride 1 02/20/24 16:50 V43894ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/20/24 16:50 V43894ENM <0.208 µg/m3 0.208 4.26Chlorodibromomethane 1 02/20/24 16:50 V43894ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/20/24 16:50 V43894ENM <0.086 µg/m3 0.086 2.44Chloroform 1 02/20/24 16:50 V43894ENM <0.067 µg/m3 0.067 1.03Chloromethane 1 02/20/24 16:50 V43894ENM <0.161 µg/m3 0.161 3.44Cyclohexane 1 02/20/24 16:50 V43894ENM <0.151 µg/m3 0.151 3.841,2-Dibromoethane 1 02/20/24 16:50 V43894ENM <0.096 µg/m3 0.096 3.011,2-Dichlorobenzene 1 02/20/24 16:50 V43894ENM <0.174 µg/m3 0.174 12.01,3-Dichlorobenzene 1 02/20/24 16:50 V43894ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/20/24 16:50 V43894ENM 2.45 J µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/20/24 16:50 V43894ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/20/24 16:50 V43894ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/20/24 16:50 V43894ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 13 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-17 97160 Matrix: 2/16/2024 11:02 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):02/20/24 09:00 V43931 02/19/24 09:00 <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/20/24 16:50 V43894ENM <0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 02/20/24 16:50 V43894ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/20/24 16:50 V43894ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/20/24 16:50 V43894ENM <0.622 µg/m3 0.622 3.501,2-Dichlorotetrafluoroethane 1 02/20/24 16:50 V43894ENM <0.178 µg/m3 0.178 2.27cis-1,3-Dichloropropene 1 02/20/24 16:50 V43894ENM <0.178 µg/m3 0.178 2.27trans-1,3-Dichloropropene 1 02/20/24 16:50 V43894ENM <0.435 µg/m3 0.435 1.801,4-Dioxane 1 02/20/24 16:50 V43894ENM 7.91 µg/m3 0.136 1.80Ethyl Acetate 1 02/20/24 16:50 V43894ENM 1.30 J µg/m3 0.106 2.17Ethylbenzene 1 02/20/24 16:50 V43894ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 02/20/24 16:50 V43894ENM <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/20/24 16:50 V43894ENM 1.45 J µg/m3 0.143 2.05Heptane 1 02/20/24 16:50 V43894ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/20/24 16:50 V43894ENM 1.63 J µg/m3 0.047 1.76n-Hexane 1 02/20/24 16:50 V43894ENM <0.285 µg/m3 0.285 2.052-Hexanone 1 02/20/24 16:50 V43894ENM 5.31 µg/m3 0.139 4.92Isopropyl Alcohol 1 02/20/24 16:50 V43894ENM 287 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 02/19/24 22:11 V43934ENM <0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 02/20/24 16:50 V43894ENM 0.311 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/20/24 16:50 V43894ENM 3.04 µg/m3 0.488 1.74Methylene Chloride 1 02/20/24 16:50 V43894ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 02/20/24 16:50 V43894ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 14 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-17 97160 Matrix: 2/16/2024 11:02 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):02/20/24 09:00 V43931 02/19/24 09:00 <0.242 µg/m3 0.242 0.860Propene 1 02/20/24 16:50 V43894ENM 1.19 J µg/m3 0.124 2.13Styrene 1 02/20/24 16:50 V43894ENM <0.104 µg/m3 0.104 3.431,1,2,2-Tetrachloroethane 1 02/20/24 16:50 V43894ENM 4.56 µg/m3 0.181 3.39 1 02/20/24 16:50 V43894ENM 26.1 µg/m3 0.107 1.47 1 02/20/24 16:50 V43894ENM 5.37 µg/m3 0.090 1.88 1 02/20/24 16:50 V43894ENM <0.209 µg/m3 0.209 3.711,2,4-Trichlorobenzene 1 02/20/24 16:50 V43894ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/20/24 16:50 V43894ENM <0.087 µg/m3 0.087 2.731,1,2-Trichloroethane 1 02/20/24 16:50 V43894ENM <0.199 µg/m3 0.199 2.15 1 02/20/24 16:50 V43894ENM 1.54 J µg/m3 0.130 2.81 1 02/20/24 16:50 V43894ENM 1.00 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/20/24 16:50 V43894ENM <0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/20/24 16:50 V43894ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/20/24 16:50 V43894ENM <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/20/24 16:50 V43894ENM 1.50 J µg/m3 0.157 2.17o-Xylene 1 02/20/24 16:50 V43894ENM 3.95 J µg/m3 0.217 5.65m,p-Xylene 1 02/20/24 16:50 V43894ENM 5.45 J µg/m3 0.157 2.17Xylene (Total)1 02/20/24 16:50 V43894 Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 15 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-16 97161 Matrix: 2/16/2024 10:16 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):02/22/24 09:00 V44025 02/20/24 09:00 354 µg/m3 2.02 47.5Acetone 10 02/22/24 21:36 V43981ENM <0.733 µg/m3 0.733 16.0Benzene 10 02/22/24 21:36 V43981ENM <1.48 µg/m3 1.48 104Benzyl Chloride 10 02/22/24 21:36 V43981ENM <1.50 µg/m3 1.50 33.5Bromodichloromethane 10 02/22/24 21:36 V43981ENM <1.53 µg/m3 1.53 51.7Bromoform 10 02/22/24 21:36 V43981ENM <1.15 µg/m3 1.15 19.4Bromomethane 10 02/22/24 21:36 V43981ENM <3.28 µg/m3 3.28 11.11,3-Butadiene 10 02/22/24 21:36 V43981ENM <0.608 µg/m3 0.608 62.3Carbon Disulfide 10 02/22/24 21:36 V43981ENM <1.55 µg/m3 1.55 31.5Carbon Tetrachloride 10 02/22/24 21:36 V43981ENM <1.07 µg/m3 1.07 23.0Chlorobenzene 10 02/22/24 21:36 V43981ENM <2.08 µg/m3 2.08 42.6Chlorodibromomethane 10 02/22/24 21:36 V43981ENM <1.64 µg/m3 1.64 13.2Chloroethane 10 02/22/24 21:36 V43981ENM <0.863 µg/m3 0.863 24.4Chloroform 10 02/22/24 21:36 V43981ENM <0.671 µg/m3 0.671 10.3Chloromethane 10 02/22/24 21:36 V43981ENM <1.61 µg/m3 1.61 34.4Cyclohexane 10 02/22/24 21:36 V43981ENM <1.51 µg/m3 1.51 38.41,2-Dibromoethane 10 02/22/24 21:36 V43981ENM <0.963 µg/m3 0.963 30.11,2-Dichlorobenzene 10 02/22/24 21:36 V43981ENM <1.73 µg/m3 1.73 1201,3-Dichlorobenzene 10 02/22/24 21:36 V43981ENM <1.86 µg/m3 1.86 30.11,4-Dichlorobenzene 10 02/22/24 21:36 V43981ENM 4.10 J µg/m3 1.34 24.7Dichlorodifluoromethane 10 02/22/24 21:36 V43981ENM <1.01 µg/m3 1.01 20.21,1-Dichloroethane 10 02/22/24 21:36 V43981ENM <1.29 µg/m3 1.29 20.21,2-Dichloroethane 10 02/22/24 21:36 V43981ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 16 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-16 97161 Matrix: 2/16/2024 10:16 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):02/22/24 09:00 V44025 02/20/24 09:00 <1.07 µg/m3 1.07 19.81,1-Dichloroethene 10 02/22/24 21:36 V43981ENM <0.953 µg/m3 0.953 19.8cis-1,2-Dichloroethene 10 02/22/24 21:36 V43981ENM <1.08 µg/m3 1.08 19.8trans-1,2-Dichloroethene 10 02/22/24 21:36 V43981ENM <2.05 µg/m3 2.05 23.11,2-Dichloropropane 10 02/22/24 21:36 V43981ENM <6.23 µg/m3 6.23 35.01,2-Dichlorotetrafluoroethane 10 02/22/24 21:36 V43981ENM <1.78 µg/m3 1.78 22.7cis-1,3-Dichloropropene 10 02/22/24 21:36 V43981ENM <1.78 µg/m3 1.78 22.7trans-1,3-Dichloropropene 10 02/22/24 21:36 V43981ENM <4.35 µg/m3 4.35 18.01,4-Dioxane 10 02/22/24 21:36 V43981ENM <1.36 µg/m3 1.36 18.0Ethyl Acetate 10 02/22/24 21:36 V43981ENM <1.06 µg/m3 1.06 21.7Ethylbenzene 10 02/22/24 21:36 V43981ENM <1.28 µg/m3 1.28 24.64-Ethyltoluene 10 02/22/24 21:36 V43981ENM <5.61 µg/m3 5.61 38.31,1,2-Trichloro-1,2,2-trifluoroethane 10 02/22/24 21:36 V43981ENM <1.43 µg/m3 1.43 20.5Heptane 10 02/22/24 21:36 V43981ENM <3.30 µg/m3 3.30 53.3Hexachlorobutadiene 10 02/22/24 21:36 V43981ENM <0.471 µg/m3 0.471 17.6n-Hexane 10 02/22/24 21:36 V43981ENM <2.85 µg/m3 2.85 20.52-Hexanone 10 02/22/24 21:36 V43981ENM 50.6 µg/m3 1.39 49.2Isopropyl Alcohol 10 02/22/24 21:36 V43981ENM 5580 µg/m3 11.2 73.7Methyl Ethyl Ketone (MEK)50 02/20/24 17:38 V44027ENM <0.335 µg/m3 0.335 18.0Methyl tert-butyl ether (MTBE)10 02/22/24 21:36 V43981ENM <1.21 µg/m3 1.21 20.54-Methyl-2-Pentanone 10 02/22/24 21:36 V43981ENM 5.35 J µg/m3 4.89 17.4Methylene Chloride 10 02/22/24 21:36 V43981ENM <1.83 µg/m3 1.83 26.2Naphthalene 10 02/22/24 21:36 V43981ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 17 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-16 97161 Matrix: 2/16/2024 10:16 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):02/22/24 09:00 V44025 02/20/24 09:00 <2.42 µg/m3 2.42 8.61Propene 10 02/22/24 21:36 V43981ENM <1.24 µg/m3 1.24 21.3Styrene 10 02/22/24 21:36 V43981ENM <1.04 µg/m3 1.04 34.31,1,2,2-Tetrachloroethane 10 02/22/24 21:36 V43981ENM <1.81 µg/m3 1.81 33.9 10 02/22/24 21:36 V43981ENM 20.0 µg/m3 1.07 14.7 10 02/22/24 21:36 V43981ENM <0.899 µg/m3 0.899 18.8 10 02/22/24 21:36 V43981ENM <2.09 µg/m3 2.09 37.11,2,4-Trichlorobenzene 10 02/22/24 21:36 V43981ENM <1.44 µg/m3 1.44 27.31,1,1-Trichloroethane 10 02/22/24 21:36 V43981ENM <0.876 µg/m3 0.876 27.31,1,2-Trichloroethane 10 02/22/24 21:36 V43981ENM <1.99 µg/m3 1.99 21.5 10 02/22/24 21:36 V43981ENM <1.30 µg/m3 1.30 28.1 10 02/22/24 21:36 V43981ENM <1.10 µg/m3 1.10 24.61,2,4-Trimethylbenzene 10 02/22/24 21:36 V43981ENM <2.36 µg/m3 2.36 24.61,3,5-Trimethylbenzene 10 02/22/24 21:36 V43981ENM <2.24 µg/m3 2.24 17.6Vinyl Acetate 10 02/22/24 21:36 V43981ENM <1.27 µg/m3 1.27 12.8Vinyl Chloride 10 02/22/24 21:36 V43981ENM <1.57 µg/m3 1.57 21.7o-Xylene 10 02/22/24 21:36 V43981ENM 3.73 J µg/m3 2.17 56.5m,p-Xylene 10 02/22/24 21:36 V43981ENM 3.73 J µg/m3 1.57 21.7Xylene (Total)10 02/22/24 21:36 V43981 Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 18 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-14 97162 Matrix: 2/16/2024 11:46 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):02/19/24 09:00 V43892 02/20/24 09:00 17800 E µg/m3 30.3 713Acetone 150 02/20/24 18:26 V43894ENM <1.46 µg/m3 1.46 31.9Benzene 20 02/19/24 23:41 V43846ENM <2.94 µg/m3 2.94 207Benzyl Chloride 20 02/19/24 23:41 V43846ENM <3.00 µg/m3 3.00 67.0Bromodichloromethane 20 02/19/24 23:41 V43846ENM <3.05 µg/m3 3.05 103Bromoform 20 02/19/24 23:41 V43846ENM <2.30 µg/m3 2.30 38.8Bromomethane 20 02/19/24 23:41 V43846ENM <6.53 µg/m3 6.53 22.11,3-Butadiene 20 02/19/24 23:41 V43846ENM <1.22 µg/m3 1.22 125Carbon Disulfide 20 02/19/24 23:41 V43846ENM <3.10 µg/m3 3.10 62.9Carbon Tetrachloride 20 02/19/24 23:41 V43846ENM <2.14 µg/m3 2.14 46.0Chlorobenzene 20 02/19/24 23:41 V43846ENM <4.16 µg/m3 4.16 85.2Chlorodibromomethane 20 02/19/24 23:41 V43846ENM <3.28 µg/m3 3.28 26.4Chloroethane 20 02/19/24 23:41 V43846ENM <1.73 µg/m3 1.73 48.8Chloroform 20 02/19/24 23:41 V43846ENM <1.34 µg/m3 1.34 20.6Chloromethane 20 02/19/24 23:41 V43846ENM <3.22 µg/m3 3.22 68.8Cyclohexane 20 02/19/24 23:41 V43846ENM <3.02 µg/m3 3.02 76.81,2-Dibromoethane 20 02/19/24 23:41 V43846ENM <1.92 µg/m3 1.92 60.11,2-Dichlorobenzene 20 02/19/24 23:41 V43846ENM <3.48 µg/m3 3.48 2411,3-Dichlorobenzene 20 02/19/24 23:41 V43846ENM <3.72 µg/m3 3.72 60.11,4-Dichlorobenzene 20 02/19/24 23:41 V43846ENM <2.68 µg/m3 2.68 49.4Dichlorodifluoromethane 20 02/19/24 23:41 V43846ENM <2.02 µg/m3 2.02 40.51,1-Dichloroethane 20 02/19/24 23:41 V43846ENM <2.58 µg/m3 2.58 40.51,2-Dichloroethane 20 02/19/24 23:41 V43846ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 19 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-14 97162 Matrix: 2/16/2024 11:46 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):02/19/24 09:00 V43892 02/20/24 09:00 <2.14 µg/m3 2.14 39.61,1-Dichloroethene 20 02/19/24 23:41 V43846ENM <1.91 µg/m3 1.91 39.6cis-1,2-Dichloroethene 20 02/19/24 23:41 V43846ENM <2.16 µg/m3 2.16 39.6trans-1,2-Dichloroethene 20 02/19/24 23:41 V43846ENM <4.10 µg/m3 4.10 46.21,2-Dichloropropane 20 02/19/24 23:41 V43846ENM <12.4 µg/m3 12.4 69.91,2-Dichlorotetrafluoroethane 20 02/19/24 23:41 V43846ENM <3.56 µg/m3 3.56 45.4cis-1,3-Dichloropropene 20 02/19/24 23:41 V43846ENM <3.56 µg/m3 3.56 45.4trans-1,3-Dichloropropene 20 02/19/24 23:41 V43846ENM <8.69 µg/m3 8.69 36.01,4-Dioxane 20 02/19/24 23:41 V43846ENM <2.72 µg/m3 2.72 36.0Ethyl Acetate 20 02/19/24 23:41 V43846ENM <2.12 µg/m3 2.12 43.4Ethylbenzene 20 02/19/24 23:41 V43846ENM <2.56 µg/m3 2.56 49.24-Ethyltoluene 20 02/19/24 23:41 V43846ENM <11.2 µg/m3 11.2 76.61,1,2-Trichloro-1,2,2-trifluoroethane 20 02/19/24 23:41 V43846ENM <2.86 µg/m3 2.86 41.0Heptane 20 02/19/24 23:41 V43846ENM <6.62 µg/m3 6.62 107Hexachlorobutadiene 20 02/19/24 23:41 V43846ENM <0.942 µg/m3 0.942 35.2n-Hexane 20 02/19/24 23:41 V43846ENM <5.71 µg/m3 5.71 41.02-Hexanone 20 02/19/24 23:41 V43846ENM 26.3 J µg/m3 2.78 98.3Isopropyl Alcohol 20 02/19/24 23:41 V43846ENM 585 µg/m3 4.48 29.5Methyl Ethyl Ketone (MEK)20 02/19/24 23:41 V43846ENM <0.672 µg/m3 0.672 36.1Methyl tert-butyl ether (MTBE)20 02/19/24 23:41 V43846ENM <2.42 µg/m3 2.42 41.04-Methyl-2-Pentanone 20 02/19/24 23:41 V43846ENM <9.75 µg/m3 9.75 34.7Methylene Chloride 20 02/19/24 23:41 V43846ENM <3.66 µg/m3 3.66 52.4Naphthalene 20 02/19/24 23:41 V43846ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 20 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:MP-14 97162 Matrix: 2/16/2024 11:46 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):02/19/24 09:00 V43892 02/20/24 09:00 <4.84 µg/m3 4.84 17.2Propene 20 02/19/24 23:41 V43846ENM <2.48 µg/m3 2.48 42.6Styrene 20 02/19/24 23:41 V43846ENM <2.08 µg/m3 2.08 68.61,1,2,2-Tetrachloroethane 20 02/19/24 23:41 V43846ENM <3.62 µg/m3 3.62 67.8 20 02/19/24 23:41 V43846ENM 29200 E µg/m3 16.0 221 150 02/20/24 18:26 V43894ENM 7.01 J µg/m3 1.80 37.7 20 02/19/24 23:41 V43846ENM <4.18 µg/m3 4.18 74.21,2,4-Trichlorobenzene 20 02/19/24 23:41 V43846ENM <2.88 µg/m3 2.88 54.61,1,1-Trichloroethane 20 02/19/24 23:41 V43846ENM <1.75 µg/m3 1.75 54.61,1,2-Trichloroethane 20 02/19/24 23:41 V43846ENM <3.98 µg/m3 3.98 43.0 20 02/19/24 23:41 V43846ENM <2.60 µg/m3 2.60 56.2 20 02/19/24 23:41 V43846ENM <2.20 µg/m3 2.20 49.21,2,4-Trimethylbenzene 20 02/19/24 23:41 V43846ENM <4.72 µg/m3 4.72 49.21,3,5-Trimethylbenzene 20 02/19/24 23:41 V43846ENM <4.48 µg/m3 4.48 35.2Vinyl Acetate 20 02/19/24 23:41 V43846ENM <2.54 µg/m3 2.54 25.6Vinyl Chloride 20 02/19/24 23:41 V43846ENM <3.14 µg/m3 3.14 43.4o-Xylene 20 02/19/24 23:41 V43846ENM <4.34 µg/m3 4.34 113m,p-Xylene 20 02/19/24 23:41 V43846ENM <3.14 µg/m3 3.14 43.4Xylene (Total)20 02/19/24 23:41 V43846 Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 21 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:IAS-B2 97163 Matrix: 2/15/2024 9:18 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):02/20/24 09:00 V44262 02/22/24 09:00 133 µg/m3 2.02 47.5Acetone 10 02/22/24 22:13 V44263ENM 1.38 J µg/m3 0.073 1.60Benzene 1 02/20/24 19:28 V44246ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/20/24 19:28 V44246ENM 0.245 JB µg/m3 0.060 6.23Carbon Disulfide 1 02/20/24 19:28 V44246ENM <0.155 µg/m3 0.155 3.15Carbon Tetrachloride 1 02/20/24 19:28 V44246ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/20/24 19:28 V44246ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/20/24 19:28 V44246ENM <0.086 µg/m3 0.086 2.44Chloroform 1 02/20/24 19:28 V44246ENM 0.720 J µg/m3 0.067 1.03Chloromethane 1 02/20/24 19:28 V44246ENM <0.161 µg/m3 0.161 3.44Cyclohexane 1 02/20/24 19:28 V44246ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/20/24 19:28 V44246ENM 2.36 J µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/20/24 19:28 V44246ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/20/24 19:28 V44246ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/20/24 19:28 V44246ENM <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/20/24 19:28 V44246ENM <0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 02/20/24 19:28 V44246ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/20/24 19:28 V44246ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/20/24 19:28 V44246ENM 19.4 µg/m3 0.169 5.00Ethanol 1 02/20/24 19:28 V44246ENM 3.74 µg/m3 0.136 1.80Ethyl Acetate 1 02/20/24 19:28 V44246ENM 1.40 J µg/m3 0.106 2.17Ethylbenzene 1 02/20/24 19:28 V44246ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 02/20/24 19:28 V44246ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 22 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:IAS-B2 97163 Matrix: 2/15/2024 9:18 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):02/20/24 09:00 V44262 02/22/24 09:00 <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/20/24 19:28 V44246ENM 1.44 J µg/m3 0.143 2.05Heptane 1 02/20/24 19:28 V44246ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/20/24 19:28 V44246ENM 1.60 J µg/m3 0.047 1.76n-Hexane 1 02/20/24 19:28 V44246ENM 0.933 J µg/m3 0.285 2.052-Hexanone 1 02/20/24 19:28 V44362ENM 9.06 µg/m3 0.139 4.92Isopropyl Alcohol 1 02/20/24 19:28 V44246ENM 53.1 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/20/24 19:28 V44246ENM <0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 02/20/24 19:28 V44246ENM 0.352 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/20/24 19:28 V44246ENM 2.01 µg/m3 0.488 1.74Methylene Chloride 1 02/20/24 19:28 V44246ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 02/20/24 19:28 V44246ENM <0.242 µg/m3 0.242 0.860Propene 1 02/20/24 19:28 V44246ENM 2.38 µg/m3 0.124 2.13Styrene 1 02/20/24 19:28 V44246ENM 0.800 J µg/m3 0.181 3.39 1 02/20/24 19:28 V44246ENM 57.5 µg/m3 0.107 1.47 1 02/20/24 19:28 V44246ENM 13.0 µg/m3 0.090 1.88 1 02/20/24 19:28 V44246ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/20/24 19:28 V44246ENM <0.199 µg/m3 0.199 2.15 1 02/20/24 19:28 V44246ENM 1.39 J µg/m3 0.130 2.81 1 02/20/24 19:28 V44246ENM 1.42 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/20/24 19:28 V44246ENM 0.506 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/20/24 19:28 V44246ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/20/24 19:28 V44246ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 23 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:IAS-B2 97163 Matrix: 2/15/2024 9:18 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):02/20/24 09:00 V44262 02/22/24 09:00 <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/20/24 19:28 V44246ENM 1.59 J µg/m3 0.157 2.17o-Xylene 1 02/20/24 19:28 V44246ENM 4.00 J µg/m3 0.217 5.65m,p-Xylene 1 02/20/24 19:28 V44246ENM 5.59 J µg/m3 0.157 2.17Xylene (Total)1 02/20/24 19:28 V44246 Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 24 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:IAS-DUP 97164 Matrix: 2/15/2024 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):02/20/24 09:00 V44262 02/22/24 09:00 130 µg/m3 2.02 47.5Acetone 10 02/22/24 22:50 V44263ENM 1.33 J µg/m3 0.073 1.60Benzene 1 02/20/24 20:29 V44246ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/20/24 20:29 V44246ENM <0.060 µg/m3 0.060 6.23Carbon Disulfide 1 02/20/24 20:29 V44246ENM <0.155 µg/m3 0.155 3.15Carbon Tetrachloride 1 02/20/24 20:29 V44246ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/20/24 20:29 V44246ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/20/24 20:29 V44246ENM <0.086 µg/m3 0.086 2.44Chloroform 1 02/20/24 20:29 V44246ENM 0.797 J µg/m3 0.067 1.03Chloromethane 1 02/20/24 20:29 V44246ENM <0.161 µg/m3 0.161 3.44Cyclohexane 1 02/20/24 20:29 V44246ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/20/24 20:29 V44246ENM 2.41 J µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/20/24 20:29 V44246ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/20/24 20:29 V44246ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/20/24 20:29 V44246ENM <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/20/24 20:29 V44246ENM <0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 02/20/24 20:29 V44246ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/20/24 20:29 V44246ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/20/24 20:29 V44246ENM 20.2 µg/m3 0.169 5.00Ethanol 1 02/20/24 20:29 V44246ENM 4.13 µg/m3 0.136 1.80Ethyl Acetate 1 02/20/24 20:29 V44246ENM 1.41 J µg/m3 0.106 2.17Ethylbenzene 1 02/20/24 20:29 V44246ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 02/20/24 20:29 V44246ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 25 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:IAS-DUP 97164 Matrix: 2/15/2024 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):02/20/24 09:00 V44262 02/22/24 09:00 <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/20/24 20:29 V44246ENM 1.43 J µg/m3 0.143 2.05Heptane 1 02/20/24 20:29 V44246ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/20/24 20:29 V44246ENM 1.74 J µg/m3 0.047 1.76n-Hexane 1 02/20/24 20:29 V44246ENM <0.285 µg/m3 0.285 2.052-Hexanone 1 02/20/24 20:29 V44362ENM 9.64 µg/m3 0.139 4.92Isopropyl Alcohol 1 02/20/24 20:29 V44246ENM 54.2 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/20/24 20:29 V44246ENM <0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 02/20/24 20:29 V44246ENM 0.307 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/20/24 20:29 V44246ENM 1.78 µg/m3 0.488 1.74Methylene Chloride 1 02/20/24 20:29 V44246ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 02/20/24 20:29 V44246ENM <0.242 µg/m3 0.242 0.860Propene 1 02/20/24 20:29 V44246ENM 2.51 µg/m3 0.124 2.13Styrene 1 02/20/24 20:29 V44246ENM 0.698 J µg/m3 0.181 3.39 1 02/20/24 20:29 V44246ENM 57.9 µg/m3 0.107 1.47 1 02/20/24 20:29 V44246ENM 12.5 µg/m3 0.090 1.88 1 02/20/24 20:29 V44246ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/20/24 20:29 V44246ENM <0.199 µg/m3 0.199 2.15 1 02/20/24 20:29 V44246ENM 1.44 J µg/m3 0.130 2.81 1 02/20/24 20:29 V44246ENM 1.49 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/20/24 20:29 V44246ENM 0.530 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/20/24 20:29 V44246ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/20/24 20:29 V44246ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 26 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:IAS-DUP 97164 Matrix: 2/15/2024 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):02/20/24 09:00 V44262 02/22/24 09:00 <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/20/24 20:29 V44246ENM 1.64 J µg/m3 0.157 2.17o-Xylene 1 02/20/24 20:29 V44246ENM 4.16 J µg/m3 0.217 5.65m,p-Xylene 1 02/20/24 20:29 V44246ENM 5.80 J µg/m3 0.157 2.17Xylene (Total)1 02/20/24 20:29 V44246 Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 27 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:IAS-B1 97165 Matrix: 2/15/2024 9:28 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):02/20/24 09:00 V44262 02/22/24 09:00 145 µg/m3 2.02 47.5Acetone 10 02/22/24 23:26 V44263ENM 2.05 µg/m3 0.073 1.60Benzene 1 02/20/24 21:29 V44246ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/20/24 21:29 V44246ENM 1.06 JB µg/m3 0.060 6.23Carbon Disulfide 1 02/20/24 21:29 V44246ENM <0.155 µg/m3 0.155 3.15Carbon Tetrachloride 1 02/20/24 21:29 V44246ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/20/24 21:29 V44246ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/20/24 21:29 V44246ENM <0.086 µg/m3 0.086 2.44Chloroform 1 02/20/24 21:29 V44246ENM 0.984 J µg/m3 0.067 1.03Chloromethane 1 02/20/24 21:29 V44246ENM <0.161 µg/m3 0.161 3.44Cyclohexane 1 02/20/24 21:29 V44246ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/20/24 21:29 V44246ENM 2.49 µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/20/24 21:29 V44246ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/20/24 21:29 V44246ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/20/24 21:29 V44246ENM <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/20/24 21:29 V44246ENM <0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 02/20/24 21:29 V44246ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/20/24 21:29 V44246ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/20/24 21:29 V44246ENM 25.8 µg/m3 0.169 5.00Ethanol 1 02/20/24 21:29 V44246ENM 4.75 µg/m3 0.136 1.80Ethyl Acetate 1 02/20/24 21:29 V44246ENM 1.67 J µg/m3 0.106 2.17Ethylbenzene 1 02/20/24 21:29 V44246ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 02/20/24 21:29 V44246ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 28 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:IAS-B1 97165 Matrix: 2/15/2024 9:28 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):02/20/24 09:00 V44262 02/22/24 09:00 <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/20/24 21:29 V44246ENM 1.43 J µg/m3 0.143 2.05Heptane 1 02/20/24 21:29 V44246ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/20/24 21:29 V44246ENM 1.27 J µg/m3 0.047 1.76n-Hexane 1 02/20/24 21:29 V44246ENM 0.954 J µg/m3 0.285 2.052-Hexanone 1 02/20/24 21:29 V44362ENM 11.2 µg/m3 0.139 4.92Isopropyl Alcohol 1 02/20/24 21:29 V44246ENM 17.0 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/20/24 21:29 V44246ENM <0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 02/20/24 21:29 V44246ENM 0.380 J µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/20/24 21:29 V44246ENM 1.57 J µg/m3 0.488 1.74Methylene Chloride 1 02/20/24 21:29 V44246ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 02/20/24 21:29 V44246ENM <0.242 µg/m3 0.242 0.860Propene 1 02/20/24 21:29 V44246ENM 2.42 µg/m3 0.124 2.13Styrene 1 02/20/24 21:29 V44246ENM 0.590 J µg/m3 0.181 3.39 1 02/20/24 21:29 V44246ENM 72.5 µg/m3 0.107 1.47 1 02/20/24 21:29 V44246ENM 7.40 µg/m3 0.090 1.88 1 02/20/24 21:29 V44246ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/20/24 21:29 V44246ENM <0.199 µg/m3 0.199 2.15 1 02/20/24 21:29 V44246ENM 1.46 J µg/m3 0.130 2.81 1 02/20/24 21:29 V44246ENM 1.65 J µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/20/24 21:29 V44246ENM 0.643 J µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/20/24 21:29 V44246ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/20/24 21:29 V44246ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 29 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:IAS-B1 97165 Matrix: 2/15/2024 9:28 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):02/20/24 09:00 V44262 02/22/24 09:00 <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/20/24 21:29 V44246ENM 1.82 J µg/m3 0.157 2.17o-Xylene 1 02/20/24 21:29 V44246ENM 4.74 J µg/m3 0.217 5.65m,p-Xylene 1 02/20/24 21:29 V44246ENM 6.56 J µg/m3 0.157 2.17Xylene (Total)1 02/20/24 21:29 V44246 Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 30 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:BKG-B 97166 Matrix: 2/15/2024 9:48 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):02/20/24 09:00 14.5 µg/m3 0.202 4.75Acetone 1 02/20/24 22:30 V44246ENM 0.840 J µg/m3 0.073 1.60Benzene 1 02/20/24 22:30 V44246ENM <0.328 µg/m3 0.328 1.111,3-Butadiene 1 02/20/24 22:30 V44246ENM <0.060 µg/m3 0.060 6.23Carbon Disulfide 1 02/20/24 22:30 V44246ENM <0.155 µg/m3 0.155 3.15Carbon Tetrachloride 1 02/20/24 22:30 V44246ENM <0.107 µg/m3 0.107 2.30Chlorobenzene 1 02/20/24 22:30 V44246ENM <0.164 µg/m3 0.164 1.32Chloroethane 1 02/20/24 22:30 V44246ENM <0.086 µg/m3 0.086 2.44Chloroform 1 02/20/24 22:30 V44246ENM 0.834 J µg/m3 0.067 1.03Chloromethane 1 02/20/24 22:30 V44246ENM <0.161 µg/m3 0.161 3.44Cyclohexane 1 02/20/24 22:30 V44246ENM <0.186 µg/m3 0.186 3.011,4-Dichlorobenzene 1 02/20/24 22:30 V44246ENM 2.40 J µg/m3 0.134 2.47Dichlorodifluoromethane 1 02/20/24 22:30 V44246ENM <0.101 µg/m3 0.101 2.021,1-Dichloroethane 1 02/20/24 22:30 V44246ENM <0.129 µg/m3 0.129 2.021,2-Dichloroethane 1 02/20/24 22:30 V44246ENM <0.107 µg/m3 0.107 1.981,1-Dichloroethene 1 02/20/24 22:30 V44246ENM <0.095 µg/m3 0.095 1.98cis-1,2-Dichloroethene 1 02/20/24 22:30 V44246ENM <0.108 µg/m3 0.108 1.98trans-1,2-Dichloroethene 1 02/20/24 22:30 V44246ENM <0.205 µg/m3 0.205 2.311,2-Dichloropropane 1 02/20/24 22:30 V44246ENM 7.04 B µg/m3 0.169 5.00Ethanol 1 02/20/24 22:30 V44246ENM 0.529 J µg/m3 0.136 1.80Ethyl Acetate 1 02/20/24 22:30 V44246ENM 0.890 J µg/m3 0.106 2.17Ethylbenzene 1 02/20/24 22:30 V44246ENM <0.128 µg/m3 0.128 2.464-Ethyltoluene 1 02/20/24 22:30 V44246ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 31 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:BKG-B 97166 Matrix: 2/15/2024 9:48 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):02/20/24 09:00 <0.561 µg/m3 0.561 3.831,1,2-Trichloro-1,2,2-trifluoroethane 1 02/20/24 22:30 V44246ENM 0.418 J µg/m3 0.143 2.05Heptane 1 02/20/24 22:30 V44246ENM <0.330 µg/m3 0.330 5.33Hexachlorobutadiene 1 02/20/24 22:30 V44246ENM 0.525 J µg/m3 0.047 1.76n-Hexane 1 02/20/24 22:30 V44246ENM <0.285 µg/m3 0.285 2.052-Hexanone 1 02/20/24 22:30 V44362ENM 2.07 JB µg/m3 0.139 4.92Isopropyl Alcohol 1 02/20/24 22:30 V44246ENM 3.31 µg/m3 0.224 1.47Methyl Ethyl Ketone (MEK)1 02/20/24 22:30 V44246ENM <0.033 µg/m3 0.033 1.80Methyl tert-butyl ether (MTBE)1 02/20/24 22:30 V44246ENM <0.121 µg/m3 0.121 2.054-Methyl-2-Pentanone 1 02/20/24 22:30 V44246ENM 1.06 J µg/m3 0.488 1.74Methylene Chloride 1 02/20/24 22:30 V44246ENM <0.183 µg/m3 0.183 2.62Naphthalene 1 02/20/24 22:30 V44246ENM <0.242 µg/m3 0.242 0.860Propene 1 02/20/24 22:30 V44246ENM <0.124 µg/m3 0.124 2.13Styrene 1 02/20/24 22:30 V44246ENM <0.181 µg/m3 0.181 3.39 1 02/20/24 22:30 V44246ENM 1.72 µg/m3 0.107 1.47 1 02/20/24 22:30 V44246ENM 1.77 JB µg/m3 0.090 1.88 1 02/20/24 22:30 V44246ENM <0.144 µg/m3 0.144 2.731,1,1-Trichloroethane 1 02/20/24 22:30 V44246ENM <0.199 µg/m3 0.199 2.15 1 02/20/24 22:30 V44246ENM 1.37 J µg/m3 0.130 2.81 1 02/20/24 22:30 V44246ENM <0.110 µg/m3 0.110 2.461,2,4-Trimethylbenzene 1 02/20/24 22:30 V44246ENM <0.236 µg/m3 0.236 2.461,3,5-Trimethylbenzene 1 02/20/24 22:30 V44246ENM <0.224 µg/m3 0.224 1.76Vinyl Acetate 1 02/20/24 22:30 V44246ENM Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Method Quantitation LimitMQL Page 32 of 58 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 24-047-0029 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Juliana Lima Charlotte Received : 02/16/2024 RMR-013-004 Report Date : 03/04/2024 Sample ID : Lab No : Sampled:BKG-B 97166 Matrix: 2/15/2024 9:48 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):02/20/24 09:00 <0.127 µg/m3 0.127 1.28Vinyl Chloride 1 02/20/24 22:30 V44246ENM 1.17 J µg/m3 0.157 2.17o-Xylene 1 02/20/24 22:30 V44246ENM 3.32 J µg/m3 0.217 5.65m,p-Xylene 1 02/20/24 22:30 V44246ENM 4.49 J µg/m3 0.157 2.17Xylene (Total)1 02/20/24 22:30 V44246 Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Surrogate: 4-Bromofluorobenzene Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Estimated valueJResult above calibration rangeE Page 33 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43846QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43844 Associated Lab Samples: 97162 LRB-V43844 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/19/24 11:321.600.073<0.073µg/m3Benzene 02/19/24 11:3210.40.147<0.147µg/m3Benzyl Chloride 02/19/24 11:323.350.150<0.150µg/m3Bromodichloromethane 02/19/24 11:325.170.153<0.153µg/m3Bromoform 02/19/24 11:321.940.115<0.115µg/m3Bromomethane 02/19/24 11:321.110.328<0.328µg/m31,3-Butadiene 02/19/24 11:326.230.060<0.060µg/m3Carbon Disulfide 02/19/24 11:323.150.155<0.155µg/m3Carbon Tetrachloride 02/19/24 11:322.300.107<0.107µg/m3Chlorobenzene 02/19/24 11:324.260.208<0.208µg/m3Chlorodibromomethane 02/19/24 11:321.320.164<0.164µg/m3Chloroethane 02/19/24 11:322.440.086<0.086µg/m3Chloroform 02/19/24 11:321.030.067<0.067µg/m3Chloromethane 02/19/24 11:323.440.161<0.161µg/m3Cyclohexane 02/19/24 11:323.840.151<0.151µg/m31,2-Dibromoethane 02/19/24 11:323.010.096<0.096µg/m31,2-Dichlorobenzene 02/19/24 11:3212.00.174<0.174µg/m31,3-Dichlorobenzene 02/19/24 11:323.010.186<0.186µg/m31,4-Dichlorobenzene 02/19/24 11:322.470.134<0.134µg/m3Dichlorodifluoromethane 02/19/24 11:322.020.101<0.101µg/m31,1-Dichloroethane 02/19/24 11:322.020.129<0.129µg/m31,2-Dichloroethane 02/19/24 11:321.980.107<0.107µg/m31,1-Dichloroethene 02/19/24 11:321.980.095<0.095µg/m3cis-1,2-Dichloroethene 02/19/24 11:321.980.108<0.108µg/m3trans-1,2-Dichloroethene 02/19/24 11:322.310.205<0.205µg/m31,2-Dichloropropane 02/19/24 11:323.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane 02/19/24 11:322.270.178<0.178µg/m3cis-1,3-Dichloropropene Page 1 of 22Date:03/04/2024 01:05 PM Page 34 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43846QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43844 Associated Lab Samples: 97162 LRB-V43844 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/19/24 11:322.270.178<0.178µg/m3trans-1,3-Dichloropropene 02/19/24 11:321.800.435<0.435µg/m31,4-Dioxane 02/19/24 11:321.800.136<0.136µg/m3Ethyl Acetate 02/19/24 11:322.170.106<0.106µg/m3Ethylbenzene 02/19/24 11:322.460.128<0.128µg/m34-Ethyltoluene 02/19/24 11:323.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 02/19/24 11:322.050.143<0.143µg/m3Heptane 02/19/24 11:325.330.330<0.330µg/m3Hexachlorobutadiene 02/19/24 11:321.760.047<0.047µg/m3n-Hexane 02/19/24 11:322.050.285<0.285µg/m32-Hexanone 02/19/24 11:324.920.1390.454µg/m3Isopropyl Alcohol 02/19/24 11:321.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK) 02/19/24 11:321.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE) 02/19/24 11:322.050.121<0.121µg/m34-Methyl-2-Pentanone 02/19/24 11:321.740.488<0.488µg/m3Methylene Chloride 02/19/24 11:322.620.183<0.183µg/m3Naphthalene 02/19/24 11:320.8600.242<0.242µg/m3Propene 02/19/24 11:322.130.124<0.124µg/m3Styrene 02/19/24 11:323.430.104<0.104µg/m31,1,2,2-Tetrachloroethane 02/19/24 11:323.390.181<0.181µg/m3 02/19/24 11:321.880.090<0.090µg/m3 02/19/24 11:323.710.209<0.209µg/m31,2,4-Trichlorobenzene 02/19/24 11:322.730.144<0.144µg/m31,1,1-Trichloroethane 02/19/24 11:322.730.087<0.087µg/m31,1,2-Trichloroethane 02/19/24 11:322.150.199<0.199µg/m3 02/19/24 11:322.810.130<0.130µg/m3 02/19/24 11:322.460.110<0.110µg/m31,2,4-Trimethylbenzene Page 2 of 22Date:03/04/2024 01:05 PM Page 35 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43846QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43844 Associated Lab Samples: 97162 LRB-V43844 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/19/24 11:322.460.236<0.236µg/m31,3,5-Trimethylbenzene 02/19/24 11:321.760.224<0.224µg/m3Vinyl Acetate 02/19/24 11:321.280.127<0.127µg/m3Vinyl Chloride 02/19/24 11:322.170.157<0.157µg/m3o-Xylene 02/19/24 11:325.650.217<0.217µg/m3m,p-Xylene 02/19/24 11:324-Bromofluorobenzene (S)92.7 70-130 LCS-V43844Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10416.616.0µg/m3Benzene 70-130 11730.425.9µg/m3Benzyl Chloride 70-130 10435.033.5µg/m3Bromodichloromethane 70-130 11559.551.7µg/m3Bromoform 70-130 11522.419.4µg/m3Bromomethane 70-130 11012.211.1µg/m31,3-Butadiene 70-130 11718.215.6µg/m3Carbon Disulfide 70-130 10332.331.5µg/m3Carbon Tetrachloride 70-130 11325.923.0µg/m3Chlorobenzene 70-130 11448.442.6µg/m3Chlorodibromomethane 70-130 11615.313.2µg/m3Chloroethane 70-130 10525.624.4µg/m3Chloroform 70-130 11812.210.3µg/m3Chloromethane 70-130 10618.217.2µg/m3Cyclohexane 70-130 11142.638.4µg/m31,2-Dibromoethane 70-130 12036.230.1µg/m31,2-Dichlorobenzene 70-130 12236.830.1µg/m31,3-Dichlorobenzene 70-130 Page 3 of 22Date:03/04/2024 01:05 PM Page 36 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43846QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43844 LCS-V43844Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 12136.330.1µg/m31,4-Dichlorobenzene 70-130 10926.924.7µg/m3Dichlorodifluoromethane 70-130 11523.220.2µg/m31,1-Dichloroethane 70-130 10320.920.2µg/m31,2-Dichloroethane 70-130 11522.719.8µg/m31,1-Dichloroethene 70-130 11222.219.8µg/m3cis-1,2-Dichloroethene 70-130 11422.619.8µg/m3trans-1,2-Dichloroethene 70-130 10524.323.1µg/m31,2-Dichloropropane 70-130 11339.535.0µg/m31,2-Dichlorotetrafluoroethane 70-130 10223.222.7µg/m3cis-1,3-Dichloropropene 70-130 99.122.522.7µg/m3trans-1,3-Dichloropropene 70-130 99.417.918.0µg/m31,4-Dioxane 70-130 11420.518.0µg/m3Ethyl Acetate 70-130 11224.321.7µg/m3Ethylbenzene 70-130 11728.924.6µg/m34-Ethyltoluene 70-130 12045.838.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130 10822.220.5µg/m3Heptane 70-130 11360.153.3µg/m3Hexachlorobutadiene 70-130 11219.717.6µg/m3n-Hexane 70-130 10922.420.5µg/m32-Hexanone 70-130 11113.712.3µg/m3Isopropyl Alcohol 70-130 10816.014.8µg/m3Methyl Ethyl Ketone (MEK)70-130 10518.918.0µg/m3Methyl tert-butyl ether (MTBE)70-130 10221.020.5µg/m34-Methyl-2-Pentanone 70-130 11419.917.4µg/m3Methylene Chloride 70-130 12933.926.2µg/m3Naphthalene 70-130 1099.378.61µg/m3Propene 70-130 Page 4 of 22Date:03/04/2024 01:05 PM Page 37 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43846QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43844 LCS-V43844Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 12326.221.3µg/m3Styrene 70-130 11840.434.3µg/m31,1,2,2-Tetrachloroethane 70-130 10435.433.9µg/m3 70-130 10219.218.8µg/m3 70-130 12245.137.1µg/m31,2,4-Trichlorobenzene 70-130 10127.627.3µg/m31,1,1-Trichloroethane 70-130 11330.927.3µg/m31,1,2-Trichloroethane 70-130 10728.926.9µg/m3 70-130 11933.428.1µg/m3 70-130 11929.324.6µg/m31,2,4-Trimethylbenzene 70-130 12129.824.6µg/m31,3,5-Trimethylbenzene 70-130 10618.717.6µg/m3Vinyl Acetate 70-130 11314.412.8µg/m3Vinyl Chloride 70-130 11825.521.7µg/m3o-Xylene 70-130 11449.643.4µg/m3m,p-Xylene 70-130 1074-Bromofluorobenzene (S)70-130 Page 5 of 22Date:03/04/2024 01:05 PM Page 38 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43894QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43892 Associated Lab Samples: 97159, 97160, 97162 LRB-V43892 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/20/24 11:204.750.2020.237µg/m3Acetone 02/20/24 11:201.600.073<0.073µg/m3Benzene 02/20/24 11:2010.40.147<0.147µg/m3Benzyl Chloride 02/20/24 11:203.350.150<0.150µg/m3Bromodichloromethane 02/20/24 11:205.170.153<0.153µg/m3Bromoform 02/20/24 11:201.940.115<0.115µg/m3Bromomethane 02/20/24 11:201.110.328<0.328µg/m31,3-Butadiene 02/20/24 11:206.230.0601.87µg/m3Carbon Disulfide 02/20/24 11:203.150.155<0.155µg/m3Carbon Tetrachloride 02/20/24 11:202.300.107<0.107µg/m3Chlorobenzene 02/20/24 11:204.260.208<0.208µg/m3Chlorodibromomethane 02/20/24 11:201.320.164<0.164µg/m3Chloroethane 02/20/24 11:202.440.086<0.086µg/m3Chloroform 02/20/24 11:201.030.067<0.067µg/m3Chloromethane 02/20/24 11:203.440.161<0.161µg/m3Cyclohexane 02/20/24 11:203.840.151<0.151µg/m31,2-Dibromoethane 02/20/24 11:203.010.096<0.096µg/m31,2-Dichlorobenzene 02/20/24 11:2012.00.174<0.174µg/m31,3-Dichlorobenzene 02/20/24 11:203.010.186<0.186µg/m31,4-Dichlorobenzene 02/20/24 11:202.470.134<0.134µg/m3Dichlorodifluoromethane 02/20/24 11:202.020.101<0.101µg/m31,1-Dichloroethane 02/20/24 11:202.020.129<0.129µg/m31,2-Dichloroethane 02/20/24 11:201.980.107<0.107µg/m31,1-Dichloroethene 02/20/24 11:201.980.095<0.095µg/m3cis-1,2-Dichloroethene 02/20/24 11:201.980.108<0.108µg/m3trans-1,2-Dichloroethene 02/20/24 11:202.310.205<0.205µg/m31,2-Dichloropropane 02/20/24 11:203.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane Page 6 of 22Date:03/04/2024 01:05 PM Page 39 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43894QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43892 Associated Lab Samples: 97159, 97160, 97162 LRB-V43892 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/20/24 11:202.270.178<0.178µg/m3cis-1,3-Dichloropropene 02/20/24 11:202.270.178<0.178µg/m3trans-1,3-Dichloropropene 02/20/24 11:201.800.435<0.435µg/m31,4-Dioxane 02/20/24 11:201.800.136<0.136µg/m3Ethyl Acetate 02/20/24 11:202.170.106<0.106µg/m3Ethylbenzene 02/20/24 11:202.460.128<0.128µg/m34-Ethyltoluene 02/20/24 11:203.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 02/20/24 11:202.050.143<0.143µg/m3Heptane 02/20/24 11:205.330.330<0.330µg/m3Hexachlorobutadiene 02/20/24 11:201.760.047<0.047µg/m3n-Hexane 02/20/24 11:202.050.285<0.285µg/m32-Hexanone 02/20/24 11:204.920.1390.476µg/m3Isopropyl Alcohol 02/20/24 11:201.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE) 02/20/24 11:202.050.121<0.121µg/m34-Methyl-2-Pentanone 02/20/24 11:201.740.488<0.488µg/m3Methylene Chloride 02/20/24 11:202.620.183<0.183µg/m3Naphthalene 02/20/24 11:200.8600.242<0.242µg/m3Propene 02/20/24 11:202.130.124<0.124µg/m3Styrene 02/20/24 11:203.430.104<0.104µg/m31,1,2,2-Tetrachloroethane 02/20/24 11:203.390.181<0.181µg/m3 02/20/24 11:201.470.107<0.107µg/m3 02/20/24 11:201.880.0900.512µg/m3 02/20/24 11:203.710.209<0.209µg/m31,2,4-Trichlorobenzene 02/20/24 11:202.730.144<0.144µg/m31,1,1-Trichloroethane 02/20/24 11:202.730.087<0.087µg/m31,1,2-Trichloroethane 02/20/24 11:202.150.199<0.199µg/m3 02/20/24 11:202.810.130<0.130µg/m3 Page 7 of 22Date:03/04/2024 01:05 PM Page 40 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43894QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43892 Associated Lab Samples: 97159, 97160, 97162 LRB-V43892 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/20/24 11:202.460.110<0.110µg/m31,2,4-Trimethylbenzene 02/20/24 11:202.460.236<0.236µg/m31,3,5-Trimethylbenzene 02/20/24 11:201.760.224<0.224µg/m3Vinyl Acetate 02/20/24 11:201.280.127<0.127µg/m3Vinyl Chloride 02/20/24 11:202.170.157<0.157µg/m3o-Xylene 02/20/24 11:205.650.217<0.217µg/m3m,p-Xylene 02/20/24 11:204-Bromofluorobenzene (S)95.2 70-130 LCS-V43892Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 97.411.611.9µg/m3Acetone 70-130 10717.116.0µg/m3Benzene 70-130 11930.825.9µg/m3Benzyl Chloride 70-130 95.532.033.5µg/m3Bromodichloromethane 70-130 11459.051.7µg/m3Bromoform 70-130 10119.519.4µg/m3Bromomethane 70-130 95.410.611.1µg/m31,3-Butadiene 70-130 10416.315.6µg/m3Carbon Disulfide 70-130 10533.231.5µg/m3Carbon Tetrachloride 70-130 11326.023.0µg/m3Chlorobenzene 70-130 11448.642.6µg/m3Chlorodibromomethane 70-130 98.413.013.2µg/m3Chloroethane 70-130 11026.824.4µg/m3Chloroform 70-130 10410.710.3µg/m3Chloromethane 70-130 10518.117.2µg/m3Cyclohexane 70-130 11343.238.4µg/m31,2-Dibromoethane 70-130 Page 8 of 22Date:03/04/2024 01:05 PM Page 41 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43894QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43892 LCS-V43892Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 12236.630.1µg/m31,2-Dichlorobenzene 70-130 12437.330.1µg/m31,3-Dichlorobenzene 70-130 12336.930.1µg/m31,4-Dichlorobenzene 70-130 98.724.424.7µg/m3Dichlorodifluoromethane 70-130 10120.520.2µg/m31,1-Dichloroethane 70-130 10521.320.2µg/m31,2-Dichloroethane 70-130 10120.019.8µg/m31,1-Dichloroethene 70-130 11322.319.8µg/m3cis-1,2-Dichloroethene 70-130 10320.319.8µg/m3trans-1,2-Dichloroethene 70-130 96.522.323.1µg/m31,2-Dichloropropane 70-130 99.434.835.0µg/m31,2-Dichlorotetrafluoroethane 70-130 94.221.422.7µg/m3cis-1,3-Dichloropropene 70-130 92.521.022.7µg/m3trans-1,3-Dichloropropene 70-130 92.716.718.0µg/m31,4-Dioxane 70-130 10819.418.0µg/m3Ethyl Acetate 70-130 11224.421.7µg/m3Ethylbenzene 70-130 11829.124.6µg/m34-Ethyltoluene 70-130 10138.838.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130 97.520.020.5µg/m3Heptane 70-130 11360.153.3µg/m3Hexachlorobutadiene 70-130 11119.617.6µg/m3n-Hexane 70-130 11022.620.5µg/m32-Hexanone 70-130 93.411.512.3µg/m3Isopropyl Alcohol 70-130 95.517.218.0µg/m3Methyl tert-butyl ether (MTBE)70-130 93.619.220.5µg/m34-Methyl-2-Pentanone 70-130 96.516.817.4µg/m3Methylene Chloride 70-130 12933.726.2µg/m3Naphthalene 70-130 Page 9 of 22Date:03/04/2024 01:05 PM Page 42 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43894QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43892 LCS-V43892Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 96.68.328.61µg/m3Propene 70-130 10823.021.3µg/m3Styrene 70-130 11338.834.3µg/m31,1,2,2-Tetrachloroethane 70-130 96.732.833.9µg/m3 70-130 10515.414.7µg/m3 70-130 94.117.718.8µg/m3 70-130 12345.637.1µg/m31,2,4-Trichlorobenzene 70-130 10628.927.3µg/m31,1,1-Trichloroethane 70-130 11431.027.3µg/m31,1,2-Trichloroethane 70-130 99.226.726.9µg/m3 70-130 99.628.028.1µg/m3 70-130 12230.024.6µg/m31,2,4-Trimethylbenzene 70-130 12129.824.6µg/m31,3,5-Trimethylbenzene 70-130 97.717.217.6µg/m3Vinyl Acetate 70-130 10012.812.8µg/m3Vinyl Chloride 70-130 11324.521.7µg/m3o-Xylene 70-130 11550.043.4µg/m3m,p-Xylene 70-130 1034-Bromofluorobenzene (S)70-130 Page 10 of 22Date:03/04/2024 01:05 PM Page 43 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43934QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43931 Associated Lab Samples: 97159, 97160 LRB-V43931 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/19/24 11:324.750.202<0.202µg/m3Acetone 02/19/24 11:321.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK) 02/19/24 11:324-Bromofluorobenzene (S)92.7 70-130 LCS-V43931Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 11814.111.9µg/m3Acetone 70-130 10816.014.8µg/m3Methyl Ethyl Ketone (MEK)70-130 1074-Bromofluorobenzene (S)70-130 Page 11 of 22Date:03/04/2024 01:05 PM Page 44 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43981QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43976 Associated Lab Samples: 97161 LRB-V43976 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/22/24 20:594.750.2021.02µg/m3Acetone 02/22/24 20:591.600.073<0.073µg/m3Benzene 02/22/24 20:5910.40.147<0.147µg/m3Benzyl Chloride 02/22/24 20:593.350.150<0.150µg/m3Bromodichloromethane 02/22/24 20:595.170.153<0.153µg/m3Bromoform 02/22/24 20:591.940.115<0.115µg/m3Bromomethane 02/22/24 20:591.110.328<0.328µg/m31,3-Butadiene 02/22/24 20:596.230.060<0.060µg/m3Carbon Disulfide 02/22/24 20:593.150.155<0.155µg/m3Carbon Tetrachloride 02/22/24 20:592.300.107<0.107µg/m3Chlorobenzene 02/22/24 20:594.260.208<0.208µg/m3Chlorodibromomethane 02/22/24 20:591.320.164<0.164µg/m3Chloroethane 02/22/24 20:592.440.086<0.086µg/m3Chloroform 02/22/24 20:591.030.067<0.067µg/m3Chloromethane 02/22/24 20:593.440.161<0.161µg/m3Cyclohexane 02/22/24 20:593.840.151<0.151µg/m31,2-Dibromoethane 02/22/24 20:593.010.096<0.096µg/m31,2-Dichlorobenzene 02/22/24 20:5912.00.174<0.174µg/m31,3-Dichlorobenzene 02/22/24 20:593.010.186<0.186µg/m31,4-Dichlorobenzene 02/22/24 20:592.470.134<0.134µg/m3Dichlorodifluoromethane 02/22/24 20:592.020.101<0.101µg/m31,1-Dichloroethane 02/22/24 20:592.020.129<0.129µg/m31,2-Dichloroethane 02/22/24 20:591.980.107<0.107µg/m31,1-Dichloroethene 02/22/24 20:591.980.095<0.095µg/m3cis-1,2-Dichloroethene 02/22/24 20:591.980.108<0.108µg/m3trans-1,2-Dichloroethene 02/22/24 20:592.310.205<0.205µg/m31,2-Dichloropropane 02/22/24 20:593.500.622<0.622µg/m31,2-Dichlorotetrafluoroethane Page 12 of 22Date:03/04/2024 01:05 PM Page 45 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43981QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43976 Associated Lab Samples: 97161 LRB-V43976 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/22/24 20:592.270.178<0.178µg/m3cis-1,3-Dichloropropene 02/22/24 20:592.270.178<0.178µg/m3trans-1,3-Dichloropropene 02/22/24 20:591.800.435<0.435µg/m31,4-Dioxane 02/22/24 20:591.800.136<0.136µg/m3Ethyl Acetate 02/22/24 20:592.170.106<0.106µg/m3Ethylbenzene 02/22/24 20:592.460.128<0.128µg/m34-Ethyltoluene 02/22/24 20:593.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 02/22/24 20:592.050.143<0.143µg/m3Heptane 02/22/24 20:595.330.330<0.330µg/m3Hexachlorobutadiene 02/22/24 20:591.760.047<0.047µg/m3n-Hexane 02/22/24 20:592.050.285<0.285µg/m32-Hexanone 02/22/24 20:594.920.1391.69µg/m3Isopropyl Alcohol 02/22/24 20:591.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE) 02/22/24 20:592.050.121<0.121µg/m34-Methyl-2-Pentanone 02/22/24 20:591.740.488<0.488µg/m3Methylene Chloride 02/22/24 20:592.620.183<0.183µg/m3Naphthalene 02/22/24 20:590.8600.242<0.242µg/m3Propene 02/22/24 20:592.130.124<0.124µg/m3Styrene 02/22/24 20:593.430.104<0.104µg/m31,1,2,2-Tetrachloroethane 02/22/24 20:593.390.181<0.181µg/m3 02/22/24 20:591.470.107<0.107µg/m3 02/22/24 20:591.880.090<0.090µg/m3 02/22/24 20:593.710.209<0.209µg/m31,2,4-Trichlorobenzene 02/22/24 20:592.730.144<0.144µg/m31,1,1-Trichloroethane 02/22/24 20:592.730.087<0.087µg/m31,1,2-Trichloroethane 02/22/24 20:592.150.199<0.199µg/m3 02/22/24 20:592.810.130<0.130µg/m3 Page 13 of 22Date:03/04/2024 01:05 PM Page 46 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43981QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43976 Associated Lab Samples: 97161 LRB-V43976 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/22/24 20:592.460.110<0.110µg/m31,2,4-Trimethylbenzene 02/22/24 20:592.460.236<0.236µg/m31,3,5-Trimethylbenzene 02/22/24 20:591.760.224<0.224µg/m3Vinyl Acetate 02/22/24 20:591.280.127<0.127µg/m3Vinyl Chloride 02/22/24 20:592.170.157<0.157µg/m3o-Xylene 02/22/24 20:595.650.217<0.217µg/m3m,p-Xylene 02/22/24 20:594-Bromofluorobenzene (S)94.1 70-130 LCS-V43976Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 85.710.211.9µg/m3Acetone 70-130 79.312.716.0µg/m3Benzene 70-130 86.822.525.9µg/m3Benzyl Chloride 70-130 80.026.833.5µg/m3Bromodichloromethane 70-130 83.543.251.7µg/m3Bromoform 70-130 86.516.819.4µg/m3Bromomethane 70-130 85.19.4511.1µg/m31,3-Butadiene 70-130 85.813.415.6µg/m3Carbon Disulfide 70-130 80.625.431.5µg/m3Carbon Tetrachloride 70-130 83.919.323.0µg/m3Chlorobenzene 70-130 83.035.442.6µg/m3Chlorodibromomethane 70-130 84.811.213.2µg/m3Chloroethane 70-130 81.920.024.4µg/m3Chloroform 70-130 89.89.2510.3µg/m3Chloromethane 70-130 80.813.917.2µg/m3Cyclohexane 70-130 84.132.338.4µg/m31,2-Dibromoethane 70-130 Page 14 of 22Date:03/04/2024 01:05 PM Page 47 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43981QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43976 LCS-V43976Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 88.726.730.1µg/m31,2-Dichlorobenzene 70-130 86.326.030.1µg/m31,3-Dichlorobenzene 70-130 88.026.530.1µg/m31,4-Dichlorobenzene 70-130 86.621.424.7µg/m3Dichlorodifluoromethane 70-130 89.618.120.2µg/m31,1-Dichloroethane 70-130 81.616.520.2µg/m31,2-Dichloroethane 70-130 87.817.419.8µg/m31,1-Dichloroethene 70-130 87.317.319.8µg/m3cis-1,2-Dichloroethene 70-130 89.317.719.8µg/m3trans-1,2-Dichloroethene 70-130 79.218.323.1µg/m31,2-Dichloropropane 70-130 88.531.035.0µg/m31,2-Dichlorotetrafluoroethane 70-130 79.218.022.7µg/m3cis-1,3-Dichloropropene 70-130 78.817.922.7µg/m3trans-1,3-Dichloropropene 70-130 75.513.618.0µg/m31,4-Dioxane 70-130 83.315.018.0µg/m3Ethyl Acetate 70-130 83.818.221.7µg/m3Ethylbenzene 70-130 85.321.024.6µg/m34-Ethyltoluene 70-130 86.433.138.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130 81.416.720.5µg/m3Heptane 70-130 82.544.053.3µg/m3Hexachlorobutadiene 70-130 85.215.017.6µg/m3n-Hexane 70-130 80.416.520.5µg/m32-Hexanone 70-130 89.411.012.3µg/m3Isopropyl Alcohol 70-130 87.215.718.0µg/m3Methyl tert-butyl ether (MTBE)70-130 78.516.120.5µg/m34-Methyl-2-Pentanone 70-130 79.813.917.4µg/m3Methylene Chloride 70-130 86.622.726.2µg/m3Naphthalene 70-130 Page 15 of 22Date:03/04/2024 01:05 PM Page 48 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V43981QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V43976 LCS-V43976Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 81.87.058.61µg/m3Propene 70-130 84.017.921.3µg/m3Styrene 70-130 82.528.334.3µg/m31,1,2,2-Tetrachloroethane 70-130 80.527.333.9µg/m3 70-130 81.612.014.7µg/m3 70-130 79.214.918.8µg/m3 70-130 85.931.937.1µg/m31,2,4-Trichlorobenzene 70-130 80.922.127.3µg/m31,1,1-Trichloroethane 70-130 81.622.327.3µg/m31,1,2-Trichloroethane 70-130 80.621.726.9µg/m3 70-130 87.924.728.1µg/m3 70-130 88.621.824.6µg/m31,2,4-Trimethylbenzene 70-130 87.821.624.6µg/m31,3,5-Trimethylbenzene 70-130 90.315.917.6µg/m3Vinyl Acetate 70-130 85.911.012.8µg/m3Vinyl Chloride 70-130 84.318.321.7µg/m3o-Xylene 70-130 85.237.043.4µg/m3m,p-Xylene 70-130 1014-Bromofluorobenzene (S)70-130 Page 16 of 22Date:03/04/2024 01:05 PM Page 49 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V44027QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V44025 Associated Lab Samples: 97161 LRB-V44025 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/20/24 11:201.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK) 02/20/24 11:204-Bromofluorobenzene (S)95.2 70-130 LCS-V44025Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 98.614.614.8µg/m3Methyl Ethyl Ketone (MEK)70-130 1034-Bromofluorobenzene (S)70-130 Page 17 of 22Date:03/04/2024 01:05 PM Page 50 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V44246,V44362QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V44236 Associated Lab Samples: 97163, 97164, 97165, 97166 LRB-V44236 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/20/24 11:204.750.2020.237µg/m3Acetone 02/20/24 11:201.600.073<0.073µg/m3Benzene 02/20/24 11:201.110.328<0.328µg/m31,3-Butadiene 02/20/24 11:206.230.0601.87µg/m3Carbon Disulfide 02/20/24 11:203.150.155<0.155µg/m3Carbon Tetrachloride 02/20/24 11:202.300.107<0.107µg/m3Chlorobenzene 02/20/24 11:201.320.164<0.164µg/m3Chloroethane 02/20/24 11:202.440.086<0.086µg/m3Chloroform 02/20/24 11:201.030.067<0.067µg/m3Chloromethane 02/20/24 11:203.440.161<0.161µg/m3Cyclohexane 02/20/24 11:203.010.186<0.186µg/m31,4-Dichlorobenzene 02/20/24 11:202.470.134<0.134µg/m3Dichlorodifluoromethane 02/20/24 11:202.020.101<0.101µg/m31,1-Dichloroethane 02/20/24 11:202.020.129<0.129µg/m31,2-Dichloroethane 02/20/24 11:201.980.107<0.107µg/m31,1-Dichloroethene 02/20/24 11:201.980.095<0.095µg/m3cis-1,2-Dichloroethene 02/20/24 11:201.980.108<0.108µg/m3trans-1,2-Dichloroethene 02/20/24 11:202.310.205<0.205µg/m31,2-Dichloropropane 02/20/24 11:205.000.1690.938µg/m3Ethanol 02/20/24 11:201.800.136<0.136µg/m3Ethyl Acetate 02/20/24 11:202.170.106<0.106µg/m3Ethylbenzene 02/20/24 11:202.460.128<0.128µg/m34-Ethyltoluene 02/20/24 11:203.830.561<0.561µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 02/20/24 11:202.050.143<0.143µg/m3Heptane 02/20/24 11:205.330.330<0.330µg/m3Hexachlorobutadiene 02/20/24 11:201.760.047<0.047µg/m3n-Hexane 02/20/24 11:202.050.285<0.285µg/m32-Hexanone Page 18 of 22Date:03/04/2024 01:05 PM Page 51 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V44246,V44362QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V44236 Associated Lab Samples: 97163, 97164, 97165, 97166 LRB-V44236 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/20/24 11:204.920.1390.476µg/m3Isopropyl Alcohol 02/20/24 11:201.470.224<0.224µg/m3Methyl Ethyl Ketone (MEK) 02/20/24 11:201.800.033<0.033µg/m3Methyl tert-butyl ether (MTBE) 02/20/24 11:202.050.121<0.121µg/m34-Methyl-2-Pentanone 02/20/24 11:201.740.488<0.488µg/m3Methylene Chloride 02/20/24 11:202.620.183<0.183µg/m3Naphthalene 02/20/24 11:200.8600.242<0.242µg/m3Propene 02/20/24 11:202.130.124<0.124µg/m3Styrene 02/20/24 11:203.390.181<0.181µg/m3 02/20/24 11:201.470.107<0.107µg/m3 02/20/24 11:201.880.0900.512µg/m3 02/20/24 11:202.730.144<0.144µg/m31,1,1-Trichloroethane 02/20/24 11:202.150.199<0.199µg/m3 02/20/24 11:202.810.130<0.130µg/m3 02/20/24 11:202.460.110<0.110µg/m31,2,4-Trimethylbenzene 02/20/24 11:202.460.236<0.236µg/m31,3,5-Trimethylbenzene 02/20/24 11:201.760.224<0.224µg/m3Vinyl Acetate 02/20/24 11:201.280.127<0.127µg/m3Vinyl Chloride 02/20/24 11:202.170.157<0.157µg/m3o-Xylene 02/20/24 11:205.650.217<0.217µg/m3m,p-Xylene 02/20/24 11:204-Bromofluorobenzene (S)95.2 70-130 LCS-V44236Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 97.411.611.9µg/m3Acetone 70-130 10717.116.0µg/m3Benzene 70-130 Page 19 of 22Date:03/04/2024 01:05 PM Page 52 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V44246,V44362QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V44236 LCS-V44236Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 95.410.611.1µg/m31,3-Butadiene 70-130 10416.315.6µg/m3Carbon Disulfide 70-130 10533.231.5µg/m3Carbon Tetrachloride 70-130 11326.023.0µg/m3Chlorobenzene 70-130 98.413.013.2µg/m3Chloroethane 70-130 11026.824.4µg/m3Chloroform 70-130 10410.710.3µg/m3Chloromethane 70-130 10518.117.2µg/m3Cyclohexane 70-130 12336.930.1µg/m31,4-Dichlorobenzene 70-130 98.724.424.7µg/m3Dichlorodifluoromethane 70-130 10120.520.2µg/m31,1-Dichloroethane 70-130 10521.320.2µg/m31,2-Dichloroethane 70-130 10120.019.8µg/m31,1-Dichloroethene 70-130 11322.319.8µg/m3cis-1,2-Dichloroethene 70-130 10320.319.8µg/m3trans-1,2-Dichloroethene 70-130 96.522.323.1µg/m31,2-Dichloropropane 70-130 97.89.229.42µg/m3Ethanol 70-130 10819.418.0µg/m3Ethyl Acetate 70-130 11224.421.7µg/m3Ethylbenzene 70-130 11829.124.6µg/m34-Ethyltoluene 70-130 10138.838.3µg/m31,1,2-Trichloro-1,2,2-trifluoroethane 70-130 97.520.020.5µg/m3Heptane 70-130 11360.153.3µg/m3Hexachlorobutadiene 70-130 11119.617.6µg/m3n-Hexane 70-130 11022.620.5µg/m32-Hexanone 70-130 93.411.512.3µg/m3Isopropyl Alcohol 70-130 98.614.614.8µg/m3Methyl Ethyl Ketone (MEK)70-130 Page 20 of 22Date:03/04/2024 01:05 PM Page 53 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V44246,V44362QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V44236 LCS-V44236Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 95.517.218.0µg/m3Methyl tert-butyl ether (MTBE)70-130 93.619.220.5µg/m34-Methyl-2-Pentanone 70-130 96.516.817.4µg/m3Methylene Chloride 70-130 12933.726.2µg/m3Naphthalene 70-130 96.68.328.61µg/m3Propene 70-130 10823.021.3µg/m3Styrene 70-130 96.732.833.9µg/m3 70-130 10515.414.7µg/m3 70-130 94.117.718.8µg/m3 70-130 10628.927.3µg/m31,1,1-Trichloroethane 70-130 99.226.726.9µg/m3 70-130 99.628.028.1µg/m3 70-130 12230.024.6µg/m31,2,4-Trimethylbenzene 70-130 12129.824.6µg/m31,3,5-Trimethylbenzene 70-130 97.717.217.6µg/m3Vinyl Acetate 70-130 10012.812.8µg/m3Vinyl Chloride 70-130 11324.521.7µg/m3o-Xylene 70-130 11550.043.4µg/m3m,p-Xylene 70-130 1034-Bromofluorobenzene (S)70-130 Page 21 of 22Date:03/04/2024 01:05 PM Page 54 of 58 Quality Control Data 24-047-0029Report No: Project Description: Client ID:Hart & Hickman (Charlotte) RMR-013-004 QC Prep Batch Method: Volatile Organic Compounds in Air- GC/MS V44263QC Analytical Batch(es): Analysis Method: Analysis Description: TO-15 Prep QC Prep:V44262 Associated Lab Samples: 97163, 97164, 97165 LRB-V44262 Matrix: AIRLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/22/24 20:594.750.2021.02µg/m3Acetone 02/22/24 20:594-Bromofluorobenzene (S)94.1 70-130 LCS-V44262Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 85.710.211.9µg/m3Acetone 70-130 1014-Bromofluorobenzene (S)70-130 Page 22 of 22Date:03/04/2024 01:05 PM Page 55 of 58 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:24-047-0029 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:02/16/2024 14:33:18 Special precautions or instructions included? Comments: Page 56 of 58 Page 57 of 58 Page 58 of 58 Appendix G DEQ Risk Calculators 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 Hypothetical Worst Case Scenario - Building B National Welders Supply Gesco Street and State Street, Charlotte, NC Brownfields Redevelopment Section 25035-21-060 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: 25035-21-060 Exposure Unit ID: Hypothetical Worst Case Scenario - Building B 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 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 Output Section 4 - Contaminant Migration Worksheets Output Section 3 - Vapor Intrusion Calculators TOC Description North Carolina DEQ Risk Calculator Complete Exposure Pathways Version Date: February 2024 Basis: November 2023 EPA RSL Table Site ID: 25035-21-060 Exposure Unit ID: Hypothetical Worst Case Scenario - Building B 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: 25035-21-060 Exposure Unit ID: Hypothetical Worst Case Scenario - Building B 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 17800 1.14 0.666 4.1 7.91 1.37 29200 1.52 1.7 50.6 5580 0.376 5.35 0.613 1.21 4.56 7.01 1.65 1.15 0.393 4.35 1.7 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 Exposure Point Concentrations Version Date: February 2024 Basis: November 2023 EPA RSL Table Site ID: 25035-21-060 Exposure Unit ID: Hypothetical Worst Case Scenario - Building B 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 145 2.05 1.06 0.984 2.49 4.75 1.67 72.5 1.44 1.74 0.954 11.2 54.2 0.38 2.01 2.51 0.8 13 1.46 1.65 0.643 4.74 1.82 Input Form 2E Indoor Air Exposure Point Concentration Table 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: 25035-21-060 Exposure Unit ID: Hypothetical Worst Case Scenario - Building B Receptor Pathway 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 Hazard Index Risk exceeded? Groundwater to Indoor Air NC NC NC Soil Gas to Indoor Air 3.7E-07 4.8E-01 NO Indoor Air 7.3E-06 4.3E-01 NO 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 DIRECT CONTACT SOIL AND WATER CALCULATORS Resident Non-Residential Worker Recreator/Trespasser NC 2B Standards, appropriate remediation and/or institutional control measures will be necessary to be eligible for a risk-based Surface Water VAPOR INTRUSION CALCULATORS Resident Non-Residential Worker CONTAMINANT MIGRATION CALCULATORS Target Receptor Concentrations Exceeded? Groundwater 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. 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: 25035-21-060 Exposure Unit ID: Hypothetical Worst Case Scenario - Building B CAS #Chemical Name: Soil Gas Concentration (ug/m3) Calculated Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Non- Carcinogenic Hazard Quotient 67-64-1 71-43-2 75-15-0 75-71-8 141-78-6 100-41-4 109-99-9 4.2E-01 142-82-5 110-54-3 67-63-0 78-93-3 108-10-1 75-09-2 91-20-3 100-42-5 127-18-4 108-88-3 75-69-4 95-63-6 108-67-8 108-38-3 95-47-6 Cumulative:3.7E-07 4.8E-01 Output Form 3B North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Resident Indoor Air Version Date: February 2024 Basis: November 2023 EPA RSL Table Site ID: 25035-21-060 Exposure Unit ID: Hypothetical Worst Case Scenario - Building B CAS #Chemical Name: Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Risk Non- Hazard 67-64-1 71-43-2 5.7E-06 6.6E-02 75-15-0 74-87-3 75-71-8 141-78-6 100-41-4 1.5E-06 1.6E-03 109-99-9 142-82-5 110-54-3 591-78-6 67-63-0 78-93-3 108-10-1 75-09-2 100-42-5 127-18-4 108-88-3 75-69-4 95-63-6 108-67-8 108-38-3 95-47-6 Cumulative:7.3E-06 4.3E-01 Output Form 3C ** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate carcinogenic risk or hazard quotient. Lead concentrations are compared to the National Ambient Air Quality Standard of 0.15 μg/m3. indoor air concentrations are entered and indoor air screening levels have been established, but it should be noted that detections of these chemicals are likely not associated with vapor intrusion. North Carolina DEQ Risk Calculator