Loading...
HomeMy WebLinkAboutWS-3254_9547_CA_MRP_20221027ANNUAL MONITORING REPORT Jerry’s Place (Incident # 9547) 983 US Highway 21 State Road, Surry County, North Carolina October 27, 2022 Terracon Project No. 75207118 Prepared for: North Carolina Department of Environmental Quality Division of Waste Management Raleigh, North Carolina Prepared by: Terracon Consultants, Inc. Greensboro, North Carolina Terracon Consultants, Inc. 7327-G West Friendly Avenue Greensboro, NC 27410 P 336-854-8135 F 336-365-7020 terracon.com October 27, 2022 Mr. Herbert Berger, P.G. North Carolina Department of Environmental Quality Division of Waste Management 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Email: Herbert.Berger@ncdenr.gov Re: Annual Monitoring Report Jerry’s Place 983 US Highway 21 State Road, Surry County, North Carolina UST Incident Number: 9547 Terracon Project No. 75207118 Dear Mr. Berger: Terracon Consultants, Inc. (Terracon) is pleased to submit this Annual Monitoring Report for the above referenced property. This report has been prepared in general accordance with North Carolina Department of Environmental Quality (NCDEQ), UST Section Corrective Action Guidelines, dated January 19, 2021 and Task Authorization No. TA-03, approved on August 24, 2022. If you have any questions regarding this report or the assessment activities, please contact us at 336-854-8135. Sincerely, Terracon Consultants, Inc. Laura R. Elliott, P.G. Edmund Woloszyn, Jr. R.E.M. Senior Geologist Department Manager II Environmental Services Jared Rose, P.G. Senior Staff Geologist Enclosures Annual Monitoring Report Jerry’s Place - Incident No. 9547 ■ State Road, NC October 27, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable 1 Table of Contents A. SITE INFORMATION ............................................................................................ 2 B. EXECUTIVE SUMMARY ...................................................................................... 3 C. SITE HISTORY AND CHARACTERIZATION ....................................................... 4 C.1 Site Setting ................................................................................................................................ 4 C.2 Release Summary ..................................................................................................................... 4 C.3 Previous Investigations ........................................................................................................... 4 C.4 Water Supply Wells .................................................................................................................. 5 C.5 Surface Water ........................................................................................................................... 5 D. ASSESSMENT INFORMATION ........................................................................... 5 D.1 Site Geology and Hydrology ................................................................................................... 5 D.2 Sampling Activities .................................................................................................................. 6 D.3 LNAPL Evaluation .................................................................................................................... 7 D.4 Groundwater Sampling Activities ........................................................................................... 7 D.5 Analytical Results ..................................................................................................................... 7 E. CONCLUSIONS AND RECOMMENDATIONS ..................................................... 8 H. REFERENCES ...................................................................................................... 9 EXHIBITS Exhibit 1: Topographic Map Exhibit 2: Site Diagram Exhibit 3: Water Supply Well Location Map Exhibit 4: Groundwater Contour Map (August 2022) Exhibit 5: Groundwater Analytical Results (August 2022) TABLES Table 1: Water Supply Well Information Table 2: Monitoring Well Construction Details and Groundwater Elevation Data Table 3: Summary of Groundwater Analytical Results APPENDICES Appendix A: Field Notes and Photographs Appendix B: Laboratory Analytical Results and Chain of Custody Form Annual Monitoring Report Jerry’s Place - Incident No. 9547 ■ State Road, NC October 27, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable 2 ANNUAL MONITORING REPORT A. SITE INFORMATION Date of Report: October 27, 2022 NCDEQ Incident No: 9547 UST #: WS-3254 Site Name: Jerry’s Place Site Location: 983 US Highway 21 State Road, Surry County, North Carolina Latitude: N: 36°18’52” Longitude: W: 80°51’38” UST Owner/Operator: Jerry’s Place Current Property Owner: Matthew Kennedy and Michael Maher 983 US Highway 21 State Road, Surry County, North Carolina Consultant: Terracon Consultants, Inc. (Contact: Laura Elliott) 7327-G West Friendly Avenue Greensboro, North Carolina 27410 (336) 854-8135 Laboratory: Pace Analytical National (NCDEQ No. 375) 12065 Lebanon Road Mt. Juliet, Tennessee 37122 (800) 767-5859 Release Information: Release Date: 1992 Estimated Quantity: Unknown Cause of Release: Underground Storage Tank (UST) System, Former USTs: four 4,000-gallon gasoline USTs Currently Active Tanks: None Annual Monitoring Report Jerry’s Place - Incident No. 9547 ■ State Road, NC October 27, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable 3 I, Laura R. Elliott, P.G., a Licensed Geologist for Terracon Consultants, Inc., do certify that the information contained in this report is correct and accurate to the best of my knowledge. Laura R. Elliott, P.G. NC License No. 2271 Terracon Consultants, Inc. is licensed to practice geology and engineering in North Carolina. The certification numbers of the corporation are C-367 and F-0869, respectively. B. EXECUTIVE SUMMARY Jerry’s Place, the subject property located at 983 US Highway 21, is situated on a 1.58-acre parcel (Surry County Parcel No. 495301186476) in State Road, North Carolina. The facility reportedly operated four 4,000-gallon gasoline underground storage tanks (USTs) which were removed from the site in 1992. At the direction of the NCDEQ, Terracon mobilized to the site on August 25, 2022, to collect groundwater samples from eight monitoring wells (MW-2/RW-2, MW-3/RW-3, MW-4/RW-4, MW-5, RW-5, MW-6, MW-7, and MW-8) for analysis by EPA Method 6200. Based on information obtained during the completion of these assessment activities, Terracon provides the following findings and conclusions:  Several petroleum constituents were detected at concentrations exceeding the 2L Standards but below the GCLs in groundwater samples from wells MW-2/RW-2 and MW-3/RW-3 and RW-5.  No target compounds were detected above laboratory detection limits in samples collected from monitoring wells MW-4/RW-4, MW-5, or MW-6.  There was insufficient groundwater present in monitoring wells MW-7 or MW-8 to collect groundwater samples during this event.  Measurable thicknesses of LNAPL were not observed in the monitoring wells gauged.  Groundwater flow was estimated, based on groundwater elevation data, to be toward the northeast, east, and southeast. Annual Monitoring Report Jerry’s Place - Incident No. 9547 ■ State Road, NC October 27, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable 4 Based on the data presented in this Annual Monitoring Report, Terracon recommends the following activities be completed at the site:  Based on the results of this sampling event and the previous report’s biodegradation model, the incident may be closed with a Notice of Residual Petroleum (NORP) and a groundwater use restriction. C. SITE HISTORY AND CHARACTERIZATION This Monitoring Report was prepared in response to a request by Mr. Herbert Berger, P.G., Incident Manager with the NCDEQ Division of Waste Management, Trust Fund Branch. The report was prepared in general accordance with 15A NCAC 2L .0115 regulations and the NCDEQ UST Section Corrective Action Guidelines dated January 19, 2021, under the supervision of Ms. Laura Elliott, a North Carolina licensed geologist (North Carolina License No. 2271). The purpose of this Monitoring Report is to present the current status of the groundwater quality at the Jerry’s Place site located at 983 US Highway 21 in State Road, Surry County, North Carolina (Exhibit 1). Terracon completed this report to summarize the findings of groundwater sampling activities performed on August 25, 2022. C.1 Site Setting Jerry’s Place, the subject property located at 983 US Highway 21, is situated on a 1.58-acre parcel (Surry County Parcel No. 495301186476) in State Road, North Carolina (Exhibit 1). The facility reportedly operated four 4,000-gallon gasoline USTs which were removed from the site in 1992. The site is currently occupied by commercial businesses (Exhibit 2). C.2 Release Summary According to prior reports, four 4,000-gallon gasoline USTs were removed from the site in 1992. During closure activities, LNAPL was observed flowing into a test pit that was excavated to a depth of approximately 19 feet below ground surface (bgs). Approximately 1,029 tons of petroleum contaminated soil was subsequently excavated during the UST closure activities. C.3 Previous Investigations According to information included in the incident folder, four 4,000-gallon gasoline USTs were removed from the site in 1992. Eight monitoring wells (MW-1 through MW-8) and two recovery wells (RW-5 and RW-6) were installed between 1993 and 1994. On-site monitoring wells were sampled in 1993, 2009, 2010, 2011, 2014, 2015, 2018, and 2019. The contaminant concentrations appear to have been decreasing since 1993. A previous consultant conducted a free product/vapor recovery event on July 29, 1996. A mobile multiphase extraction (MMPE) event was later conducted in 2001. According to a Groundwater Monitoring Report completed by a previous consultant and Annual Monitoring Report Jerry’s Place - Incident No. 9547 ■ State Road, NC October 27, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable 5 dated January 7, 2020, methyl tert-butyl ether (MTBE) has been detected in the on-site water supply well (WSW-5) since 2009 at a concentration below its 2L Standard. In June 2022, Terracon conducted slug testing and groundwater modeling along with groundwater sampling to assess the likelihood of downgradient water supply wells being affected by the migration of petroleum compounds from the subject site. The model determined that the wells were unlikely to be affected by petroleum-contaminated groundwater on the subject site. C.4 Water Supply Wells According to a Groundwater Monitoring Report prepared by Engineering Consulting Services (ECS) and dated September 16, 2014, sixteen water supply wells were identified within 1,000 feet of the site. A copy of the ECS water supply well location map is presented as Exhibit 3, and Table 1 presents information on the water supply wells located within approximately 500 feet of the site. Water supply well WSW-5 is located on the site, approximately 90 feet southwest and cross- gradient from the source area. Groundwater samples from well WSW-5 have not contained detected concentrations of petroleum constituents since 2018. Well WSW-6 is located approximately 350 feet north and upgradient of the source area of the release and has not contained concentrations of petroleum constituents above the analytical method reporting limits since at least 2009. Wells WSW-3 and WSW-4 are located approximately 550 to 600 feet southwest and cross-gradient relative to the source area of the release. The wells previously contained detected concentrations of petroleum products including MTBE; however, petroleum constituents have not been reported in water samples collected from the water supply wells since at least 2009. Municipal water is not available to the site and surrounding properties. C.5 Surface Water Based on review of the USGS Topographic Map, the closest body of water is intermittent Camp Creek (Grass Creek, Stream Index 12-62-14, in the Yadkin Pee-Dee River Basin) located approximately 225 feet east of the site. Surface water intakes are not known to be located within 1,500 feet of the source area of the release. Nearby surface water bodies are shown on Exhibit 1. D. ASSESSMENT INFORMATION D.1 Site Geology and Hydrology The following resources were reviewed to evaluate site-specific geological and hydrogeological characteristics. Elkin N Quadrangle, North Carolina, USGS 7.5-minute series topographic map, dated 2000 (Exhibit 1). Geologic Map of North Carolina, dated 1985. Annual Monitoring Report Jerry’s Place - Incident No. 9547 ■ State Road, NC October 27, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable 6 Soil Survey of Surry County, North Carolina, US Department of Agriculture, Natural Resources Conservation Service, Web Soil Survey via the Internet, http://websoilsurvey.nrcs.usda.gov/app/. The site is located within the Alligator Back Formation of the Blue Ridge Belt in the Piedmont Physiographic Province. The Piedmont Physiographic Province generally consists of low to medium elevation, rounded hills and long rolling northeast to southwest trending ridges with incised creeks and river channels. Rocks in the site vicinity consist of mica schist and phyllite. In-place chemical and physical weathering of parent rocks typically forms residual soils in the Piedmont region. Weathering is facilitated by the presence of fractures, joints, and less resistant minerals in the rock. In areas not altered by erosion, alluvial deposition or the activities of man, the typical residual soil profile consists of clay-rich unconsolidated materials at the surface, transitioning to sandy silts and silty sands at depth. Typically, the boundary between soil and bedrock is not sharply defined. This transitional zone is termed “partially weathered rock”. Information obtained from the Surry County Soil Survey depicts soils on the site as Fairview sandy clay loam (FeC2). The FeC2 is found on 8 to 15 percent slopes and consists of sandy clay loams that originated from weathered schists and other micaceous metamorphic rock. In the Piedmont, groundwater generally occurs in pore spaces within soils and in the structural features present in the underlying rock (i.e. joints, fractures, and faults). Recharge to the water table is primarily by precipitation infiltrating the surficial soils and percolating downward under the influence of gravity to the water table. Typically, the water table is not a level surface, but a subdued reflection of the land surface. The depth to the water table is not consistent and is dependent upon several factors that include the amount of rainfall, permeability of the soil, the extent of fracturing in the underlying rock and the influences of groundwater pumping. Groundwater typically flows in directions sub-parallel to the ground surface and under the influence of gravity to discharge points such as surface water features and the toes of slopes or natural springs. Fluctuations in the depth of the water table can be expected depending on variations in precipitation, surface water run-off and other factors not evident at the time of our subsurface exploration. Normally, the highest levels of the water table occur in late winter and spring and the lowest levels occur in the late summer and fall. Based on groundwater elevation measurements taken in June 2022, groundwater is estimated to flow radially from the site toward the northeast, east, and southeast on site. D.2 Sampling Activities Terracon mobilized to the site on August 25, 2022, to collect groundwater samples from the site monitoring wells, which included MW-2/RW-2, MW-3/RW-3, MW-4/RW-4, MW-5, RW-5, MW-6, MW-7, and MW-8. However, there was an insufficient volume of groundwater present in monitoring wells MW-7 or MW-8 from which to collect a sample. The approximate locations of the wells are depicted on Exhibit 2 and copies of Terracon’s field notes are included in Appendix A. Annual Monitoring Report Jerry’s Place - Incident No. 9547 ■ State Road, NC October 27, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable 7 D.3 LNAPL Evaluation Measurable thicknesses of LNAPL were not encountered in the monitoring wells during this assessment. D.4 Groundwater Sampling Activities Prior to sample collection, Terracon gauged the groundwater elevations in the monitoring wells using a decontaminated electronic water level meter. The approximate locations of the wells are shown on Exhibit 2, and monitoring well construction details and groundwater elevation measurements are provided in Table 2. Groundwater flow was estimated, based on groundwater elevation data, to be directed radially from the site to the northeast, east, and southeast. This is consistent with recent data. Groundwater elevations and groundwater elevation contours are depicted on Exhibit 4. The monitoring wells were purged with a submersible pump using low flow sampling techniques (i.e., <200 milliliters per minute) prior to sampling. The following parameters were periodically measured during purging: pH, temperature, oxidation reduction potential (ORP), dissolved oxygen (DO), and conductivity. Purging was considered complete once the field parameters stabilized. Monitoring wells MW-7 and MW-8 did not have adequate volume present to purge the wells. The groundwater samples were then collected into laboratory-supplied glassware, labeled, and stored in an ice-packed cooler. The samples, along with chain-of-custody documentation, were delivered to Pace National in Mt. Juliet, Tennessee under a standard turnaround time for analysis of volatile organic compounds (VOCs) by EPA Method 6200B including xylenes, MTBE, EDB, and di-isopropyl ether (IPE). Copies of field notes including groundwater parameters are provided in Appendix B. D.5 Analytical Results Based on the laboratory analytical report, several petroleum constituents were identified at concentrations exceeding the established 2L Standards in groundwater samples collected from monitoring wells MW-2/RW-2, MW-3/RW-3 and RW-5 during this sampling event.  Benzene [1,740 µg/L], ethylbenzene [2,130 µg/L], isopropylbenzene [98.7 µg/L], naphthalene [429 µg/L], n-propylbenzene [163 µg/L], toluene [1,700 µg/L], 1,2,4- trimethylbenzene [1,940 µg/L], and total xylenes [7,330 µg/L] were reported by the laboratory in the groundwater sample collected from monitoring well MW-2/RW-2 at concentrations exceeding the 2L Standards but below the GCLs.  Benzene [14.8 µg/L], naphthalene [191 µg/L], n-propylbenzene [187 µg/L], and 1,2,4-trimethylbenzene [285 µg/L] were reported by the laboratory in the groundwater sample collected from monitoring well MW-3/RW-3 at concentrations exceeding the 2L Standards but below the GCLs. Annual Monitoring Report Jerry’s Place - Incident No. 9547 ■ State Road, NC October 27, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable 8  Naphthalene [36.8 µg/L] was reported in the groundwater sample collected from monitoring well RW-5 at concentrations exceeding the 2L Standard but below the GCL.  Multiple petroleum constituents were also reported in groundwater samples collected from wells MW-2/RW-2, MW-3/RW-3, and RW-5 at concentrations exceeding the laboratory detection limits but below the 2L Standards.  No petroleum constituents were reported above laboratory method’s detection limits in groundwater samples collected from monitoring wells MW-4/RW-4, MW-5, or MW- 6. Summaries of the groundwater analytical results are included on Table 2 and Exhibit 5. The historical groundwater analytical results summaries are in Table 4. A copy of the laboratory analytical report is provided in Appendix B. E. CONCLUSIONS AND RECOMMENDATIONS Based on information obtained during the completion of these assessment activities, Terracon provides the following findings and conclusions:  Petroleum constituents were detected at concentrations exceeding the 2L Standards but below the GCLs in groundwater samples from wells MW-2/RW-2, MW-3/RW-3, and RW-5.  Multiple petroleum constituents were also detected in groundwater samples from wells MW-2/RW-2, MW-3/RW-3, and RW-5 at concentrations exceeding the laboratory detection limits but below the 2L Standards.  No target compounds were detected above laboratory detection limits in samples collected from monitoring wells MW-4/RW-4, MW-5, or MW-6.  Monitoring wells MW-7 and MW-8 were not able to be sampled, as there was not enough groundwater volume in the wells at the time of sampling.  Measurable thicknesses of LNAPL were not observed in the monitoring wells gauged.  Groundwater flow was estimated, based on groundwater elevation data, to be toward the northeast, east, and southeast. Based on the data presented in this Annual Monitoring Report, Terracon recommends the following activities be completed at the site:  Based on the results of this sampling event and the previous report’s biodegradation model, the incident may be closed with a Notice of Residual Petroleum (NORP) and a groundwater use restriction. Annual Monitoring Report Jerry’s Place - Incident No. 9547 ■ State Road, NC October 27, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable 9 H. REFERENCES The following sources were utilized in developing this report: Terracon, Inc., 2022. Annual Monitoring Report, Terracon, dated July 29, 2022. ECS, Ltd., 2020. Groundwater Monitoring Report, ECS, dated January 7, 2020. ECS, Ltd., 2015. Groundwater Monitoring Report, ECS, dated October 14, 2015. ECS, Ltd., 2014. Groundwater Monitoring Report, ECS, dated September 16, 2014. S&ME, Inc., 2011. Water Supply Well Sampling Report, S&ME, Inc., dated June 13, 2011. Terraine, Inc., 2005. Groundwater Monitoring Report, Terraine, Inc., dated November 28, 2005. Aggressive Fluid/Vapor Recovery Evaluation, November 22, 1996. Bain, Palmer & Associates, Inc., 1993. Site Assessment Jerry’s Convenience Store, Bain, Palmer & Associates, Inc., dated June 30, 1993. EXHIBITS TOPOGRAPHIC MAP Jerry’s Place (Incident No. 9547) 983 US Highway 21 State Road, Surry County, NC TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY QUADRANGLES INCLUDE: THURMOND, NC (1/1/1971) and ELKIN NORTH, NC (1/1/2000). 7327 W Friendly Ave Ste G Greensboro, NC 27410-6253 75207118 Project Manager: Drawn by: Checked by: Approved by: JWR EW EW 1”=2,000’ May 2021 Project No. Scale: File Name: Date: 1 Exhibit MIM APPROXIMATE SITE BOUNDARY Jerrys Place @A @A @A @A @A @A @A@A ED "ÑÎ "ÑÎ Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 0 30 60Feet Legend "ÑÎ Former Monitoring Well ED Water Supply Well @A Monitoring Well Site Boundary Parcel Boundary File Path: Date: Project No. Scale: LRE JWR EW EW 2 PM: Drawn By: Checked By: Approved By:7327-G West Friendly Avenue Greensboro, NC 27410 Phone: (336) 854-28135 Fax: (336) 365-7020 75207118 EXHIBITNO.SITE DIAGRAM 10/5/2022 Jerry's Place (Incident No. 9547)983 US Highway 21State Road, Surry County, NC WSW-5 MW-7 MW-3/RW-3(PAVED OVER)RW-6 RW-5 U.S. HI GHWAY 21MW-2/RW-2 MW-6 MW-1(DESTROYED) MW-8 MW-4/RW-4 MW-5 1 inch = 60 ft. WATER SUPPLY WELL LOCATION MAP Jerry’s Place (Incident No. 9547) 983 US Highway 21 State Road, Surry County, NC MIM EW EW Scale: 3 ExhibitProject Manager: Drawn by: Checked by: Approved by: Project No. File Name: Date: MIM Site boundary 7327-G West Friendly Avenue Greensboro, NC 75207118 Jerry’s Place May 2021 1” = 500’ Water Supply Well Source: Groundwater Monitoring Report, ECS, 2014 @A @A @A @A @A @A @A @A ED "ÑÎ "ÑÎ 0 30 60Feet Legend "ÑÎ Former Monitoring Well ED Water Supply Well @A Monitoring Well Groundwater Elevation Contour Groundwater Flow Direction Site Boundary Parcel Boundary File Path: Date: Project No. Scale: LRE JWR EW EW 4 PM: Drawn By: Checked By: Approved By:7327-G West Friendly Avenue Greensboro, NC 27410 Phone: (336) 854-28135 Fax: (336) 365-7020 75207118 EXHIBITNO.GROUNDWATER CONTOUR MAP (AUGUST 2022) 10/25/2022 Jerry's Place (Incident No. 9547)983 US Highway 21State Road, Surry County, NC WSW-5 MW-7 MW-3/RW-3 RW-6(PAVED OVER) RW-5 U.S . H IGHWAY 21 MW-2/RW-2 MW-6 MW-1(DESTROYED) MW-8 MW-4/RW-4 MW-5 1 inch = 60 ft. (74.67) (78.60) (81.35) (74.45) (73.61) (72.25) (79.13) (77.06) 74.00 76.0075.0073.00 7 8 . 0 0 7 7 . 0 0 79. 0 0 80.00 81.00 @A @A @A @A @A @A @A@A ED "ÑÎ "ÑÎ Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 0 30 60Feet Legend "ÑÎ Former Monitoring Well ED Water Supply Well @A Monitoring Well Site Boundary Parcel Boundary File Path: Date: Project No. Scale: LRE JWR EW EW 5 PM: Drawn By: Checked By: Approved By:7327-G West Friendly Avenue Greensboro, NC 27410 Phone: (336) 854-28135 Fax: (336) 365-7020 75207118 EXHIBITNO.GROUNDWATER ANALYTICAL RESULTS (AUGUST 2022) 10/25/2022 Jerry's Place (Incident No. 9547)983 US Highway 21State Road, Surry County, NC WSW-5Not Sampled MW-7 MW-3/RW-3 (PAVED OVER)RW-6 RW-5 U.S. HI GHWAY 21MW-2/RW-2 MW-6 MW-1(DESTROYED) MW-8 MW-4/RW-4 MW-5 1 inch = 60 ft. MW-2VOCs by 6200Benzene = 1,740 µg/LEthylbenzene = 2,130 µg/LIsopropylbenzene = 98.7 µg/LNaphthalene = 429 µg/Ln-Propylbenzene = 163 µg/LToluene = 1,700 µg/L1,2,4-Trimethylbenzene = 1,940 µg/L1,3,5-Trimethylbenzene = 382 µg/LXylenes (Total) = 7,330 µg/L MW-3/RW-3VOCs by 6200Benzene = 14.8 µg/Lsec-Butylbenzene = 13.8 µg/LEthylbenzene = 106 µg/LIsopropylbenzene = 60.6 µg/Lp-Isopropyltoluene = 15.7 µg/LNaphthalene = 191 µg/Ln-Propylbenzene = 187 µg/LToluene = 1.60 µg/L1,2,4-Trimethylbenzene = 285 µg/L1,3,5-Trimethylbenzene = 108 µg/LXylenes (Total) = 86.5 µg/L RW-5VOCs by 6200sec-Butylbenzene = 2.10 µg/LEthylbenzene = 15.7 µg/LIsopropylbenzene = 14.1 µg/Lp-Isopropylbenzene = 2.77 µg/LNaphthalene = 36.8 µg/Ln-Propylbenzene = 19.0 µg/L1,2,4-Trimethylbenzene = 43.1 µg/L1.3.5-Trimethylbenzene = 3.56 µg/LTotal Xylenes = 24.9 µg/L MW-4/RW-4VOCs by 6200All Analytes Below Detection Limits MW-5VOCs by 6200All Analytes Below Detection Limits MW-7Not Sampled (Dry) MW-8Not Sampled (Dry) MW-6VOCs by 6200All Analytes Below Detection Limits TABLES TABLE 1 Water Supply Well Information Jerry’s Place State Road, Surry County, North Carolina Terracon Project No. 75207118 NCDEQ Incident No. 9547 May 17, 2021 Note: Table generated from Groundwater Monitoring Report, ECS, dated September 16, 2014 TABLE 2Monitoring Well Construction Details and Groundwater Elevation DataJerry's PlaceState Road, Surry County, North CarolinaTerracon Project No. 75207118NCDEQ Incident No. 9547Well IDScreened Interval (ft. TOC)Total Well Depth (ft. BTOC)Top of Casing ElevationDate Water Level MeasuredDepth to Water (ft. BTOC)Groundwater ElevationComments6/16/2022 19.20 82.258/25/2022 20.10 81.356/16/2022 18.35 79.648/25/2022 19.39 78.606/16/2022 20.44 75.508/25/2022 21.27 74.676/16/2022 5.47 75.108/25/2022 6.12 74.456/16/2022 20.04 77.958/25/2022 20.93 77.066/16/2022 20.35 79.288/25/2022 20.50 79.136/16/2022 24.40 72.808/25/2022 24.95 72.256/16/2022 24.50 74.018/25/2022 24.90 73.61Notes:ft = feet TOC = Top of CasingbTOC = below TOC2-inch diameter Type II well 2-inch diameter Type II well 2-inch diameter Type II well MW-8MW-7MW-6RW-5MW-54-inch diameter Type II well 4-inch diameter Type II well 4-inch diameter Type II well 2-inch diameter Type II well; Stick-up completion4-inch diameter Type II well 2525271515-2515-2515-25Unknown15-25101.453012-32MW-2/RW-298.5197.2099.6397.9980.5725MW-4/RW-4 2-12 30 95.9497.993010-30MW-3/RW-3 TABLE 3 Summary of Groundwater Analytical Results Jerry's Place 983 US Highway 21 State Road, Surry County, North Carolina NCDEQ Incident No. 9547 Terracon Project No. 75207118 Monitoring Well I.D. Date Collected 4/29/2021 510 <20.0 <20.0 4.21 590 47.3 <20.0 10.6 2.09 194 97.8 23.3 455 639 206 1716 6/16/2022 234 <20.0 <20.0 <20.0 379 49.8 <20.0 <200 <20.0 184 144 <20.0 42.7 650 295 752 8/25/2022 1740 <50.0 <50.0 <50.0 2130 98.7 <50.0 <500 <50.0 429 163 <50.0 1700 1940 382 7330 4/29/2021 <10.0 12.6 12.2 <10.0 99.4 59.4 <10.0 <10.0 <10.0 207 130 <10.0 <10.0 478 134 233 6/16/2022 14.8 13.4 15.9 <10.0 86.4 59.1 <10.0 <100 <10.0 179 157 <10.0 <10.0 384 130 143.5 8/25/2022 14.8 <1.00 13.8 <1.00 106 60.6 15.7 <10.0 <1.00 191 187 <1.00 1.60 285 108 86.5 4/29/2021 <1.0 <1.0 <1.0 <1.0 <1.0 1.41 <1.0 <10.0 <1.0 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 6/16/2022 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <2.00 8/25/2022 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <10.0 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <2.00 4/29/2021 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10.0 <1.0 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 6/16/2022 <1.00 <1.00 <1.00 <1.00 1.26 1.27 <1.00 <1.00 <1.00 <5.00 3.03 <1.00 <1.00 1.89 <1.00 <2.00 8/25/2022 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <10.0 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <2.00 4/29/2021 <5.0 <5.0 <5.0 <5.0 42 13.30 <5.0 <50.0 <5.0 58.5 21.30 <5.0 <5.0 131 17.4 108.2 6/16/2022 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <2.00 8/25/2022 <1.00 <1.00 2.10 <1.00 15.7 14.1 2.77 <10.0 <1.00 36.8 19.0 <1.00 <1.00 43.1 3.56 24.9 6/16/2022 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <2.00 8/25/2022 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <10.0 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <2.00 MW-7 6/16/2022 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <2.00 MW-8 6/16/2022 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <2.00 WSW-5 4/29/2021 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10.0 <1.0 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 FB-1 4/29/2021 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <10.0 <1.0 <5.0 <1.0 <1.0 <1.0 <1.0 <1.0 <2.0 1 70 70 70 600 70 25 100 20 6 70 70 600 400 400 500 5000 6900 8500 70000 84500 25000 11700 100000 20000 6000 30000 70000 260000 28500 25000 85500 Notes:All measurements in micrograms per liter (μ/L)Bold indicated detection above Laboratory Reported Detection Limit NE = Not Established indicates concentrations exceeding 2L J = Detected below laboratory reporting limit indicates concentrations exceeding GCL NR = Not Reported Groundwater standards pursuant to NCDEQ, UST Section [Guidelines for Assessment and Corrective Action] FB= Field Blank dated January 19, 2021 Gross Contamination Levels for Groundwater (GCL)NaphthaleneNorth Carolina Groundwater Quality Standards (2L Standards)4-Methyl-2-PentanoneMethyl Tert-Butyl etherMW-6 MW-5 MW-3/RW-3 MW-4/RW-4 RW-5 MW-2/RW-2 Analytical Method Contaminant of Concern →Di-isopropyl etherEthylbenzeneIsopropylbenzeneN-ButylbenzeneSec-ButylbenzeneBenzeneVOCs by Method 6200B 1,2,4-TrimethylbenzeneTolueneStyrenen-PropylbenzeneXylenes (Total)1,3,5-Trimethylbenzenep-Isopropyltoluene1 of 1 APPENDIX A FIELD NOTES AND PHOTOGRAPHS NCDEQ 2020-2023-Jerrys Place ■ Incident # 9547 State Road, NC Date Pictures Taken: June 16, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable Photo 1 Overview of site, facing WNW. Photo 2 Monitoring well MW-5 stick up well in background. Storm drain access in foreground. Photo 3 Monitoring well MW-5 stick up well. Photo 4 Monitoring well MW-4/RW-4. Photo 5 Monitoring well MW-3/RW-3. Photo 6 Monitoring well MW-2/RW-2. NCDEQ 2020-2023-Jerrys Place ■ Incident # 9547 State Road, NC Date Pictures Taken: June 16, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable Photo 7 Monitoring well MW-6. Photo 8 Recovery well RW-5. Photo 9 Monitoring well MW-8. Photo 10 Monitoring well MW-7. Photo 11 View from site toward cemetery to the east. Photo 12 View from site toward cemetery to the east. NCDEQ 2020-2023-Jerrys Place ■ Incident # 9547 State Road, NC Date Pictures Taken: June 16, 2022 ■ Terracon Project No. 75207118 Responsive ■ Resourceful ■ Reliable Photo 13 View from site toward the north. Photo 14 View from site toward the south. Photo 15 View from site toward the west. APPENDIX B LABORATORY ANALYTICAL RESULTS AND CHAIN-OF-CUSTODY FORMS ANALYTICAL REPORT September 07, 2022 Terracon - Greensboro, NC Sample Delivery Group:L1530266 Samples Received:08/27/2022 Project Number:7520711B Description:Jerry's Place Report To:Jared Rose 7327-G, West Friendly Ave Greensboro, NC 27410 Entire Report Reviewed By: September 07, 2022 [Preliminary Report] Heather J Wagner Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 1 of 27 September 08, 2022 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 1 of 27 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 MW-2/RW-2 L1530266-01 5 RW-5 L1530266-02 7 MW4/RW-4 L1530266-03 9 MW3/RW-3 L1530266-04 11 MW-6 L1530266-05 13 MW-5 L1530266-06 15 Qc: Quality Control Summary 17 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 17 Gl: Glossary of Terms 25 Al: Accreditations & Locations 26 Sc: Sample Chain of Custody 27 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 2 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 2 of 27 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-2/RW-2 L1530266-01 GW Jared Rose 08/25/22 12:05 08/27/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1921999 50 09/06/22 18:31 09/06/22 18:31 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time RW-5 L1530266-02 GW Jared Rose 08/25/22 12:40 08/27/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1919995 1 09/01/22 16:26 09/01/22 16:26 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1921999 1 09/06/22 17:31 09/06/22 17:31 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW4/RW-4 L1530266-03 GW Jared Rose 08/25/22 13:45 08/27/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1919995 1 09/01/22 16:47 09/01/22 16:47 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW3/RW-3 L1530266-04 GW Jared Rose 08/25/22 15:00 08/27/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1919995 1 09/01/22 17:07 09/01/22 17:07 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1921999 10 09/06/22 18:51 09/06/22 18:51 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-6 L1530266-05 GW Jared Rose 08/25/22 15:20 08/27/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1919995 1 09/01/22 17:27 09/01/22 17:27 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1921999 1 09/06/22 17:51 09/06/22 17:51 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-5 L1530266-06 GW Jared Rose 08/25/22 16:15 08/27/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1919995 1 09/01/22 17:47 09/01/22 17:47 JAH Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 3 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 3 of 27 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Heather J Wagner Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 4 of 27 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 4 of 27 SAMPLE RESULTS - 01 L1530266 MW-2/RW-2 Collected date/time: 08/25/22 12:05 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Acetone ND 2500 50 09/06/2022 18:31 WG1921999 Acrolein ND 2500 50 09/06/2022 18:31 WG1921999 Acrylonitrile ND 500 50 09/06/2022 18:31 WG1921999 Benzene 1740 50.0 50 09/06/2022 18:31 WG1921999 Bromobenzene ND 50.0 50 09/06/2022 18:31 WG1921999 Bromodichloromethane ND 50.0 50 09/06/2022 18:31 WG1921999 Bromoform ND 50.0 50 09/06/2022 18:31 WG1921999 Bromomethane ND 250 50 09/06/2022 18:31 WG1921999 n-Butylbenzene ND 50.0 50 09/06/2022 18:31 WG1921999 sec-Butylbenzene ND 50.0 50 09/06/2022 18:31 WG1921999 tert-Butylbenzene ND 50.0 50 09/06/2022 18:31 WG1921999 Carbon tetrachloride ND 50.0 50 09/06/2022 18:31 WG1921999 Chlorobenzene ND 50.0 50 09/06/2022 18:31 WG1921999 Chlorodibromomethane ND 50.0 50 09/06/2022 18:31 WG1921999 Chloroethane ND 250 50 09/06/2022 18:31 WG1921999 Chloroform ND 250 50 09/06/2022 18:31 WG1921999 Chloromethane ND 125 50 09/06/2022 18:31 WG1921999 2-Chlorotoluene ND 50.0 50 09/06/2022 18:31 WG1921999 4-Chlorotoluene ND 50.0 50 09/06/2022 18:31 WG1921999 1,2-Dibromo-3-Chloropropane ND 250 50 09/06/2022 18:31 WG1921999 1,2-Dibromoethane ND 50.0 50 09/06/2022 18:31 WG1921999 Dibromomethane ND 50.0 50 09/06/2022 18:31 WG1921999 1,2-Dichlorobenzene ND 50.0 50 09/06/2022 18:31 WG1921999 1,3-Dichlorobenzene ND 50.0 50 09/06/2022 18:31 WG1921999 1,4-Dichlorobenzene ND 50.0 50 09/06/2022 18:31 WG1921999 Dichlorodifluoromethane ND 250 50 09/06/2022 18:31 WG1921999 1,1-Dichloroethane ND 50.0 50 09/06/2022 18:31 WG1921999 1,2-Dichloroethane ND 50.0 50 09/06/2022 18:31 WG1921999 1,1-Dichloroethene ND 50.0 50 09/06/2022 18:31 WG1921999 cis-1,2-Dichloroethene ND 50.0 50 09/06/2022 18:31 WG1921999 trans-1,2-Dichloroethene ND 50.0 50 09/06/2022 18:31 WG1921999 1,2-Dichloropropane ND 50.0 50 09/06/2022 18:31 WG1921999 1,1-Dichloropropene ND 50.0 50 09/06/2022 18:31 WG1921999 1,3-Dichloropropane ND 50.0 50 09/06/2022 18:31 WG1921999 2,2-Dichloropropane ND 50.0 50 09/06/2022 18:31 WG1921999 Di-isopropyl ether ND 50.0 50 09/06/2022 18:31 WG1921999 Ethylbenzene 2130 50.0 50 09/06/2022 18:31 WG1921999 Hexachloro-1,3-butadiene ND 50.0 50 09/06/2022 18:31 WG1921999 Isopropylbenzene 98.7 50.0 50 09/06/2022 18:31 WG1921999 p-Isopropyltoluene ND 50.0 50 09/06/2022 18:31 WG1921999 2-Butanone (MEK)ND 500 50 09/06/2022 18:31 WG1921999 Methylene Chloride ND 250 50 09/06/2022 18:31 WG1921999 4-Methyl-2-pentanone (MIBK)ND 500 50 09/06/2022 18:31 WG1921999 Methyl tert-butyl ether ND 50.0 50 09/06/2022 18:31 WG1921999 Naphthalene 429 250 50 09/06/2022 18:31 WG1921999 n-Propylbenzene 163 50.0 50 09/06/2022 18:31 WG1921999 Styrene ND 50.0 50 09/06/2022 18:31 WG1921999 1,1,1,2-Tetrachloroethane ND 50.0 50 09/06/2022 18:31 WG1921999 1,1,2,2-Tetrachloroethane ND 50.0 50 09/06/2022 18:31 WG1921999 Tetrachloroethene ND 50.0 50 09/06/2022 18:31 WG1921999 Toluene 1700 50.0 50 09/06/2022 18:31 WG1921999 1,2,3-Trichlorobenzene ND 50.0 50 09/06/2022 18:31 WG1921999 1,2,4-Trichlorobenzene ND 50.0 50 09/06/2022 18:31 WG1921999 1,1,1-Trichloroethane ND 50.0 50 09/06/2022 18:31 WG1921999 1,1,2-Trichloroethane ND 50.0 50 09/06/2022 18:31 WG1921999 Trichloroethene ND 50.0 50 09/06/2022 18:31 WG1921999 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 5 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 5 of 27 SAMPLE RESULTS - 01 L1530266 MW-2/RW-2 Collected date/time: 08/25/22 12:05 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Trichlorofluoromethane ND 250 50 09/06/2022 18:31 WG1921999 1,2,3-Trichloropropane ND 125 50 09/06/2022 18:31 WG1921999 1,2,4-Trimethylbenzene 1940 50.0 50 09/06/2022 18:31 WG1921999 1,3,5-Trimethylbenzene 382 50.0 50 09/06/2022 18:31 WG1921999 Vinyl chloride ND 50.0 50 09/06/2022 18:31 WG1921999 o-Xylene 2810 50.0 50 09/06/2022 18:31 WG1921999 m&p-Xylenes 4520 100 50 09/06/2022 18:31 WG1921999 (S) Toluene-d8 104 80.0-120 09/06/2022 18:31 WG1921999 (S) 4-Bromofluorobenzene 96.8 77.0-126 09/06/2022 18:31 WG1921999 (S) 1,2-Dichloroethane-d4 99.6 70.0-130 09/06/2022 18:31 WG1921999 Sample Narrative: L1530266-01 WG1921999: Target compounds too high to run at a lower dilution. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 6 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 6 of 27 SAMPLE RESULTS - 02 L1530266 RW-5 Collected date/time: 08/25/22 12:40 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Acetone ND 50.0 1 09/01/2022 16:26 WG1919995 Acrolein ND 50.0 1 09/01/2022 16:26 WG1919995 Acrylonitrile ND 10.0 1 09/01/2022 16:26 WG1919995 Benzene ND 1.00 1 09/01/2022 16:26 WG1919995 Bromobenzene ND 1.00 1 09/01/2022 16:26 WG1919995 Bromodichloromethane ND 1.00 1 09/01/2022 16:26 WG1919995 Bromoform ND 1.00 1 09/01/2022 16:26 WG1919995 Bromomethane ND 5.00 1 09/01/2022 16:26 WG1919995 n-Butylbenzene ND 1.00 1 09/01/2022 16:26 WG1919995 sec-Butylbenzene 2.10 1.00 1 09/06/2022 17:31 WG1921999 tert-Butylbenzene ND 1.00 1 09/01/2022 16:26 WG1919995 Carbon tetrachloride ND 1.00 1 09/01/2022 16:26 WG1919995 Chlorobenzene ND 1.00 1 09/01/2022 16:26 WG1919995 Chlorodibromomethane ND 1.00 1 09/01/2022 16:26 WG1919995 Chloroethane ND 5.00 1 09/01/2022 16:26 WG1919995 Chloroform ND 5.00 1 09/01/2022 16:26 WG1919995 Chloromethane ND 2.50 1 09/01/2022 16:26 WG1919995 2-Chlorotoluene ND 1.00 1 09/01/2022 16:26 WG1919995 4-Chlorotoluene ND 1.00 1 09/01/2022 16:26 WG1919995 1,2-Dibromo-3-Chloropropane ND 5.00 1 09/01/2022 16:26 WG1919995 1,2-Dibromoethane ND 1.00 1 09/01/2022 16:26 WG1919995 Dibromomethane ND 1.00 1 09/01/2022 16:26 WG1919995 1,2-Dichlorobenzene ND 1.00 1 09/01/2022 16:26 WG1919995 1,3-Dichlorobenzene ND 1.00 1 09/01/2022 16:26 WG1919995 1,4-Dichlorobenzene ND 1.00 1 09/01/2022 16:26 WG1919995 Dichlorodifluoromethane ND 5.00 1 09/01/2022 16:26 WG1919995 1,1-Dichloroethane ND 1.00 1 09/01/2022 16:26 WG1919995 1,2-Dichloroethane ND 1.00 1 09/01/2022 16:26 WG1919995 1,1-Dichloroethene ND 1.00 1 09/01/2022 16:26 WG1919995 cis-1,2-Dichloroethene ND 1.00 1 09/01/2022 16:26 WG1919995 trans-1,2-Dichloroethene ND 1.00 1 09/01/2022 16:26 WG1919995 1,2-Dichloropropane ND J4 1.00 1 09/01/2022 16:26 WG1919995 1,1-Dichloropropene ND 1.00 1 09/01/2022 16:26 WG1919995 1,3-Dichloropropane ND 1.00 1 09/01/2022 16:26 WG1919995 2,2-Dichloropropane ND 1.00 1 09/01/2022 16:26 WG1919995 Di-isopropyl ether ND 1.00 1 09/01/2022 16:26 WG1919995 Ethylbenzene 15.7 1.00 1 09/06/2022 17:31 WG1921999 Hexachloro-1,3-butadiene ND 1.00 1 09/01/2022 16:26 WG1919995 Isopropylbenzene 14.1 1.00 1 09/06/2022 17:31 WG1921999 p-Isopropyltoluene 2.77 1.00 1 09/06/2022 17:31 WG1921999 2-Butanone (MEK)ND 10.0 1 09/01/2022 16:26 WG1919995 Methylene Chloride ND 5.00 1 09/01/2022 16:26 WG1919995 4-Methyl-2-pentanone (MIBK)ND 10.0 1 09/01/2022 16:26 WG1919995 Methyl tert-butyl ether ND 1.00 1 09/01/2022 16:26 WG1919995 Naphthalene 36.8 5.00 1 09/06/2022 17:31 WG1921999 n-Propylbenzene 19.0 1.00 1 09/06/2022 17:31 WG1921999 Styrene ND 1.00 1 09/01/2022 16:26 WG1919995 1,1,1,2-Tetrachloroethane ND 1.00 1 09/01/2022 16:26 WG1919995 1,1,2,2-Tetrachloroethane ND 1.00 1 09/01/2022 16:26 WG1919995 Tetrachloroethene ND 1.00 1 09/01/2022 16:26 WG1919995 Toluene ND 1.00 1 09/06/2022 17:31 WG1921999 1,2,3-Trichlorobenzene ND 1.00 1 09/01/2022 16:26 WG1919995 1,2,4-Trichlorobenzene ND 1.00 1 09/01/2022 16:26 WG1919995 1,1,1-Trichloroethane ND 1.00 1 09/01/2022 16:26 WG1919995 1,1,2-Trichloroethane ND 1.00 1 09/01/2022 16:26 WG1919995 Trichloroethene ND 1.00 1 09/01/2022 16:26 WG1919995 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 7 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 7 of 27 SAMPLE RESULTS - 02 L1530266 RW-5 Collected date/time: 08/25/22 12:40 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Trichlorofluoromethane ND 5.00 1 09/01/2022 16:26 WG1919995 1,2,3-Trichloropropane ND 2.50 1 09/01/2022 16:26 WG1919995 1,2,4-Trimethylbenzene 43.1 1.00 1 09/06/2022 17:31 WG1921999 1,3,5-Trimethylbenzene 3.56 1.00 1 09/06/2022 17:31 WG1921999 Vinyl chloride ND 1.00 1 09/01/2022 16:26 WG1919995 o-Xylene 8.00 1.00 1 09/06/2022 17:31 WG1921999 m&p-Xylenes 16.9 2.00 1 09/06/2022 17:31 WG1921999 (S) Toluene-d8 99.9 80.0-120 09/01/2022 16:26 WG1919995 (S) Toluene-d8 102 80.0-120 09/06/2022 17:31 WG1921999 (S) 4-Bromofluorobenzene 101 77.0-126 09/01/2022 16:26 WG1919995 (S) 4-Bromofluorobenzene 106 77.0-126 09/06/2022 17:31 WG1921999 (S) 1,2-Dichloroethane-d4 101 70.0-130 09/01/2022 16:26 WG1919995 (S) 1,2-Dichloroethane-d4 116 70.0-130 09/06/2022 17:31 WG1921999 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 8 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 8 of 27 SAMPLE RESULTS - 03 L1530266 MW4/RW-4 Collected date/time: 08/25/22 13:45 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Acetone ND 50.0 1 09/01/2022 16:47 WG1919995 Acrolein ND 50.0 1 09/01/2022 16:47 WG1919995 Acrylonitrile ND 10.0 1 09/01/2022 16:47 WG1919995 Benzene ND 1.00 1 09/01/2022 16:47 WG1919995 Bromobenzene ND 1.00 1 09/01/2022 16:47 WG1919995 Bromodichloromethane ND 1.00 1 09/01/2022 16:47 WG1919995 Bromoform ND 1.00 1 09/01/2022 16:47 WG1919995 Bromomethane ND 5.00 1 09/01/2022 16:47 WG1919995 n-Butylbenzene ND 1.00 1 09/01/2022 16:47 WG1919995 sec-Butylbenzene ND 1.00 1 09/01/2022 16:47 WG1919995 tert-Butylbenzene ND 1.00 1 09/01/2022 16:47 WG1919995 Carbon tetrachloride ND 1.00 1 09/01/2022 16:47 WG1919995 Chlorobenzene ND 1.00 1 09/01/2022 16:47 WG1919995 Chlorodibromomethane ND 1.00 1 09/01/2022 16:47 WG1919995 Chloroethane ND 5.00 1 09/01/2022 16:47 WG1919995 Chloroform ND 5.00 1 09/01/2022 16:47 WG1919995 Chloromethane ND 2.50 1 09/01/2022 16:47 WG1919995 2-Chlorotoluene ND 1.00 1 09/01/2022 16:47 WG1919995 4-Chlorotoluene ND 1.00 1 09/01/2022 16:47 WG1919995 1,2-Dibromo-3-Chloropropane ND 5.00 1 09/01/2022 16:47 WG1919995 1,2-Dibromoethane ND 1.00 1 09/01/2022 16:47 WG1919995 Dibromomethane ND 1.00 1 09/01/2022 16:47 WG1919995 1,2-Dichlorobenzene ND 1.00 1 09/01/2022 16:47 WG1919995 1,3-Dichlorobenzene ND 1.00 1 09/01/2022 16:47 WG1919995 1,4-Dichlorobenzene ND 1.00 1 09/01/2022 16:47 WG1919995 Dichlorodifluoromethane ND 5.00 1 09/01/2022 16:47 WG1919995 1,1-Dichloroethane ND 1.00 1 09/01/2022 16:47 WG1919995 1,2-Dichloroethane ND 1.00 1 09/01/2022 16:47 WG1919995 1,1-Dichloroethene ND 1.00 1 09/01/2022 16:47 WG1919995 cis-1,2-Dichloroethene ND 1.00 1 09/01/2022 16:47 WG1919995 trans-1,2-Dichloroethene ND 1.00 1 09/01/2022 16:47 WG1919995 1,2-Dichloropropane ND J4 1.00 1 09/01/2022 16:47 WG1919995 1,1-Dichloropropene ND 1.00 1 09/01/2022 16:47 WG1919995 1,3-Dichloropropane ND 1.00 1 09/01/2022 16:47 WG1919995 2,2-Dichloropropane ND 1.00 1 09/01/2022 16:47 WG1919995 Di-isopropyl ether ND 1.00 1 09/01/2022 16:47 WG1919995 Ethylbenzene ND 1.00 1 09/01/2022 16:47 WG1919995 Hexachloro-1,3-butadiene ND 1.00 1 09/01/2022 16:47 WG1919995 Isopropylbenzene ND 1.00 1 09/01/2022 16:47 WG1919995 p-Isopropyltoluene ND 1.00 1 09/01/2022 16:47 WG1919995 2-Butanone (MEK)ND 10.0 1 09/01/2022 16:47 WG1919995 Methylene Chloride ND 5.00 1 09/01/2022 16:47 WG1919995 4-Methyl-2-pentanone (MIBK)ND 10.0 1 09/01/2022 16:47 WG1919995 Methyl tert-butyl ether ND 1.00 1 09/01/2022 16:47 WG1919995 Naphthalene ND 5.00 1 09/01/2022 16:47 WG1919995 n-Propylbenzene ND 1.00 1 09/01/2022 16:47 WG1919995 Styrene ND 1.00 1 09/01/2022 16:47 WG1919995 1,1,1,2-Tetrachloroethane ND 1.00 1 09/01/2022 16:47 WG1919995 1,1,2,2-Tetrachloroethane ND 1.00 1 09/01/2022 16:47 WG1919995 Tetrachloroethene ND 1.00 1 09/01/2022 16:47 WG1919995 Toluene ND 1.00 1 09/01/2022 16:47 WG1919995 1,2,3-Trichlorobenzene ND 1.00 1 09/01/2022 16:47 WG1919995 1,2,4-Trichlorobenzene ND 1.00 1 09/01/2022 16:47 WG1919995 1,1,1-Trichloroethane ND 1.00 1 09/01/2022 16:47 WG1919995 1,1,2-Trichloroethane ND 1.00 1 09/01/2022 16:47 WG1919995 Trichloroethene ND 1.00 1 09/01/2022 16:47 WG1919995 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 9 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 9 of 27 SAMPLE RESULTS - 03 L1530266 MW4/RW-4 Collected date/time: 08/25/22 13:45 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Trichlorofluoromethane ND 5.00 1 09/01/2022 16:47 WG1919995 1,2,3-Trichloropropane ND 2.50 1 09/01/2022 16:47 WG1919995 1,2,4-Trimethylbenzene ND 1.00 1 09/01/2022 16:47 WG1919995 1,3,5-Trimethylbenzene ND 1.00 1 09/01/2022 16:47 WG1919995 Vinyl chloride ND 1.00 1 09/01/2022 16:47 WG1919995 o-Xylene ND 1.00 1 09/01/2022 16:47 WG1919995 m&p-Xylenes ND 2.00 1 09/01/2022 16:47 WG1919995 (S) Toluene-d8 108 80.0-120 09/01/2022 16:47 WG1919995 (S) 4-Bromofluorobenzene 104 77.0-126 09/01/2022 16:47 WG1919995 (S) 1,2-Dichloroethane-d4 95.4 70.0-130 09/01/2022 16:47 WG1919995 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 10 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 10 of 27 SAMPLE RESULTS - 04 L1530266 MW3/RW-3 Collected date/time: 08/25/22 15:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Acetone ND 50.0 1 09/01/2022 17:07 WG1919995 Acrolein ND 50.0 1 09/01/2022 17:07 WG1919995 Acrylonitrile ND 10.0 1 09/01/2022 17:07 WG1919995 Benzene 14.8 1.00 1 09/01/2022 17:07 WG1919995 Bromobenzene ND 1.00 1 09/01/2022 17:07 WG1919995 Bromodichloromethane ND 1.00 1 09/01/2022 17:07 WG1919995 Bromoform ND 1.00 1 09/01/2022 17:07 WG1919995 Bromomethane ND 5.00 1 09/01/2022 17:07 WG1919995 n-Butylbenzene ND 1.00 1 09/01/2022 17:07 WG1919995 sec-Butylbenzene 13.8 1.00 1 09/01/2022 17:07 WG1919995 tert-Butylbenzene ND 1.00 1 09/01/2022 17:07 WG1919995 Carbon tetrachloride ND 1.00 1 09/01/2022 17:07 WG1919995 Chlorobenzene ND 1.00 1 09/01/2022 17:07 WG1919995 Chlorodibromomethane ND 1.00 1 09/01/2022 17:07 WG1919995 Chloroethane ND 5.00 1 09/01/2022 17:07 WG1919995 Chloroform ND 5.00 1 09/01/2022 17:07 WG1919995 Chloromethane ND 2.50 1 09/01/2022 17:07 WG1919995 2-Chlorotoluene ND 1.00 1 09/01/2022 17:07 WG1919995 4-Chlorotoluene ND 1.00 1 09/01/2022 17:07 WG1919995 1,2-Dibromo-3-Chloropropane ND 5.00 1 09/01/2022 17:07 WG1919995 1,2-Dibromoethane ND 1.00 1 09/01/2022 17:07 WG1919995 Dibromomethane ND 1.00 1 09/01/2022 17:07 WG1919995 1,2-Dichlorobenzene ND 1.00 1 09/01/2022 17:07 WG1919995 1,3-Dichlorobenzene ND 1.00 1 09/01/2022 17:07 WG1919995 1,4-Dichlorobenzene ND 1.00 1 09/01/2022 17:07 WG1919995 Dichlorodifluoromethane ND 5.00 1 09/01/2022 17:07 WG1919995 1,1-Dichloroethane ND 1.00 1 09/01/2022 17:07 WG1919995 1,2-Dichloroethane ND 1.00 1 09/01/2022 17:07 WG1919995 1,1-Dichloroethene ND 1.00 1 09/01/2022 17:07 WG1919995 cis-1,2-Dichloroethene ND 1.00 1 09/01/2022 17:07 WG1919995 trans-1,2-Dichloroethene ND 1.00 1 09/01/2022 17:07 WG1919995 1,2-Dichloropropane ND J4 1.00 1 09/01/2022 17:07 WG1919995 1,1-Dichloropropene ND 1.00 1 09/01/2022 17:07 WG1919995 1,3-Dichloropropane ND 1.00 1 09/01/2022 17:07 WG1919995 2,2-Dichloropropane ND 1.00 1 09/01/2022 17:07 WG1919995 Di-isopropyl ether ND 1.00 1 09/01/2022 17:07 WG1919995 Ethylbenzene 106 1.00 1 09/01/2022 17:07 WG1919995 Hexachloro-1,3-butadiene ND 1.00 1 09/01/2022 17:07 WG1919995 Isopropylbenzene 60.6 1.00 1 09/01/2022 17:07 WG1919995 p-Isopropyltoluene 15.7 1.00 1 09/01/2022 17:07 WG1919995 2-Butanone (MEK)ND 10.0 1 09/01/2022 17:07 WG1919995 Methylene Chloride ND 5.00 1 09/01/2022 17:07 WG1919995 4-Methyl-2-pentanone (MIBK)ND 10.0 1 09/01/2022 17:07 WG1919995 Methyl tert-butyl ether ND 1.00 1 09/01/2022 17:07 WG1919995 Naphthalene 191 5.00 1 09/01/2022 17:07 WG1919995 n-Propylbenzene 187 1.00 1 09/01/2022 17:07 WG1919995 Styrene ND 1.00 1 09/01/2022 17:07 WG1919995 1,1,1,2-Tetrachloroethane ND 1.00 1 09/01/2022 17:07 WG1919995 1,1,2,2-Tetrachloroethane ND 1.00 1 09/01/2022 17:07 WG1919995 Tetrachloroethene ND 1.00 1 09/01/2022 17:07 WG1919995 Toluene 1.60 1.00 1 09/01/2022 17:07 WG1919995 1,2,3-Trichlorobenzene ND 1.00 1 09/01/2022 17:07 WG1919995 1,2,4-Trichlorobenzene ND 1.00 1 09/01/2022 17:07 WG1919995 1,1,1-Trichloroethane ND 1.00 1 09/01/2022 17:07 WG1919995 1,1,2-Trichloroethane ND 1.00 1 09/01/2022 17:07 WG1919995 Trichloroethene ND 1.00 1 09/01/2022 17:07 WG1919995 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 11 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 11 of 27 SAMPLE RESULTS - 04 L1530266 MW3/RW-3 Collected date/time: 08/25/22 15:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Trichlorofluoromethane ND 5.00 1 09/01/2022 17:07 WG1919995 1,2,3-Trichloropropane ND 2.50 1 09/01/2022 17:07 WG1919995 1,2,4-Trimethylbenzene 285 10.0 10 09/06/2022 18:51 WG1921999 1,3,5-Trimethylbenzene 108 1.00 1 09/01/2022 17:07 WG1919995 Vinyl chloride ND 1.00 1 09/01/2022 17:07 WG1919995 o-Xylene 23.8 1.00 1 09/01/2022 17:07 WG1919995 m&p-Xylenes 62.7 2.00 1 09/01/2022 17:07 WG1919995 (S) Toluene-d8 97.2 80.0-120 09/01/2022 17:07 WG1919995 (S) Toluene-d8 105 80.0-120 09/06/2022 18:51 WG1921999 (S) 4-Bromofluorobenzene 98.8 77.0-126 09/01/2022 17:07 WG1919995 (S) 4-Bromofluorobenzene 102 77.0-126 09/06/2022 18:51 WG1921999 (S) 1,2-Dichloroethane-d4 106 70.0-130 09/01/2022 17:07 WG1919995 (S) 1,2-Dichloroethane-d4 100 70.0-130 09/06/2022 18:51 WG1921999 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 12 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 12 of 27 SAMPLE RESULTS - 05 L1530266 MW-6 Collected date/time: 08/25/22 15:20 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Acetone ND 50.0 1 09/01/2022 17:27 WG1919995 Acrolein ND 50.0 1 09/01/2022 17:27 WG1919995 Acrylonitrile ND 10.0 1 09/01/2022 17:27 WG1919995 Benzene ND 1.00 1 09/01/2022 17:27 WG1919995 Bromobenzene ND 1.00 1 09/01/2022 17:27 WG1919995 Bromodichloromethane ND 1.00 1 09/01/2022 17:27 WG1919995 Bromoform ND 1.00 1 09/01/2022 17:27 WG1919995 Bromomethane ND 5.00 1 09/01/2022 17:27 WG1919995 n-Butylbenzene ND 1.00 1 09/01/2022 17:27 WG1919995 sec-Butylbenzene ND 1.00 1 09/01/2022 17:27 WG1919995 tert-Butylbenzene ND 1.00 1 09/01/2022 17:27 WG1919995 Carbon tetrachloride ND 1.00 1 09/01/2022 17:27 WG1919995 Chlorobenzene ND 1.00 1 09/01/2022 17:27 WG1919995 Chlorodibromomethane ND 1.00 1 09/01/2022 17:27 WG1919995 Chloroethane ND 5.00 1 09/01/2022 17:27 WG1919995 Chloroform ND 5.00 1 09/01/2022 17:27 WG1919995 Chloromethane ND 2.50 1 09/01/2022 17:27 WG1919995 2-Chlorotoluene ND 1.00 1 09/01/2022 17:27 WG1919995 4-Chlorotoluene ND 1.00 1 09/01/2022 17:27 WG1919995 1,2-Dibromo-3-Chloropropane ND 5.00 1 09/01/2022 17:27 WG1919995 1,2-Dibromoethane ND 1.00 1 09/01/2022 17:27 WG1919995 Dibromomethane ND 1.00 1 09/01/2022 17:27 WG1919995 1,2-Dichlorobenzene ND 1.00 1 09/01/2022 17:27 WG1919995 1,3-Dichlorobenzene ND 1.00 1 09/01/2022 17:27 WG1919995 1,4-Dichlorobenzene ND 1.00 1 09/01/2022 17:27 WG1919995 Dichlorodifluoromethane ND 5.00 1 09/01/2022 17:27 WG1919995 1,1-Dichloroethane ND 1.00 1 09/01/2022 17:27 WG1919995 1,2-Dichloroethane ND 1.00 1 09/01/2022 17:27 WG1919995 1,1-Dichloroethene ND 1.00 1 09/01/2022 17:27 WG1919995 cis-1,2-Dichloroethene ND 1.00 1 09/01/2022 17:27 WG1919995 trans-1,2-Dichloroethene ND 1.00 1 09/01/2022 17:27 WG1919995 1,2-Dichloropropane ND J4 1.00 1 09/01/2022 17:27 WG1919995 1,1-Dichloropropene ND 1.00 1 09/01/2022 17:27 WG1919995 1,3-Dichloropropane ND 1.00 1 09/01/2022 17:27 WG1919995 2,2-Dichloropropane ND 1.00 1 09/01/2022 17:27 WG1919995 Di-isopropyl ether ND 1.00 1 09/01/2022 17:27 WG1919995 Ethylbenzene ND 1.00 1 09/01/2022 17:27 WG1919995 Hexachloro-1,3-butadiene ND 1.00 1 09/01/2022 17:27 WG1919995 Isopropylbenzene ND 1.00 1 09/01/2022 17:27 WG1919995 p-Isopropyltoluene ND 1.00 1 09/01/2022 17:27 WG1919995 2-Butanone (MEK)ND 10.0 1 09/01/2022 17:27 WG1919995 Methylene Chloride ND 5.00 1 09/01/2022 17:27 WG1919995 4-Methyl-2-pentanone (MIBK)ND 10.0 1 09/01/2022 17:27 WG1919995 Methyl tert-butyl ether ND 1.00 1 09/01/2022 17:27 WG1919995 Naphthalene ND 5.00 1 09/06/2022 17:51 WG1921999 n-Propylbenzene ND 1.00 1 09/01/2022 17:27 WG1919995 Styrene ND 1.00 1 09/01/2022 17:27 WG1919995 1,1,1,2-Tetrachloroethane ND 1.00 1 09/01/2022 17:27 WG1919995 1,1,2,2-Tetrachloroethane ND 1.00 1 09/01/2022 17:27 WG1919995 Tetrachloroethene ND 1.00 1 09/01/2022 17:27 WG1919995 Toluene ND 1.00 1 09/01/2022 17:27 WG1919995 1,2,3-Trichlorobenzene ND 1.00 1 09/01/2022 17:27 WG1919995 1,2,4-Trichlorobenzene ND 1.00 1 09/01/2022 17:27 WG1919995 1,1,1-Trichloroethane ND 1.00 1 09/01/2022 17:27 WG1919995 1,1,2-Trichloroethane ND 1.00 1 09/01/2022 17:27 WG1919995 Trichloroethene ND 1.00 1 09/01/2022 17:27 WG1919995 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 13 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 13 of 27 SAMPLE RESULTS - 05 L1530266 MW-6 Collected date/time: 08/25/22 15:20 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Trichlorofluoromethane ND 5.00 1 09/01/2022 17:27 WG1919995 1,2,3-Trichloropropane ND 2.50 1 09/01/2022 17:27 WG1919995 1,2,4-Trimethylbenzene ND 1.00 1 09/01/2022 17:27 WG1919995 1,3,5-Trimethylbenzene ND 1.00 1 09/01/2022 17:27 WG1919995 Vinyl chloride ND 1.00 1 09/01/2022 17:27 WG1919995 o-Xylene ND 1.00 1 09/01/2022 17:27 WG1919995 m&p-Xylenes ND 2.00 1 09/01/2022 17:27 WG1919995 (S) Toluene-d8 106 80.0-120 09/01/2022 17:27 WG1919995 (S) Toluene-d8 110 80.0-120 09/06/2022 17:51 WG1921999 (S) 4-Bromofluorobenzene 104 77.0-126 09/01/2022 17:27 WG1919995 (S) 4-Bromofluorobenzene 107 77.0-126 09/06/2022 17:51 WG1921999 (S) 1,2-Dichloroethane-d4 98.6 70.0-130 09/01/2022 17:27 WG1919995 (S) 1,2-Dichloroethane-d4 104 70.0-130 09/06/2022 17:51 WG1921999 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 14 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 14 of 27 SAMPLE RESULTS - 06 L1530266 MW-5 Collected date/time: 08/25/22 16:15 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Acetone ND 50.0 1 09/01/2022 17:47 WG1919995 Acrolein ND 50.0 1 09/01/2022 17:47 WG1919995 Acrylonitrile ND 10.0 1 09/01/2022 17:47 WG1919995 Benzene ND 1.00 1 09/01/2022 17:47 WG1919995 Bromobenzene ND 1.00 1 09/01/2022 17:47 WG1919995 Bromodichloromethane ND 1.00 1 09/01/2022 17:47 WG1919995 Bromoform ND 1.00 1 09/01/2022 17:47 WG1919995 Bromomethane ND 5.00 1 09/01/2022 17:47 WG1919995 n-Butylbenzene ND 1.00 1 09/01/2022 17:47 WG1919995 sec-Butylbenzene ND 1.00 1 09/01/2022 17:47 WG1919995 tert-Butylbenzene ND 1.00 1 09/01/2022 17:47 WG1919995 Carbon tetrachloride ND 1.00 1 09/01/2022 17:47 WG1919995 Chlorobenzene ND 1.00 1 09/01/2022 17:47 WG1919995 Chlorodibromomethane ND 1.00 1 09/01/2022 17:47 WG1919995 Chloroethane ND 5.00 1 09/01/2022 17:47 WG1919995 Chloroform ND 5.00 1 09/01/2022 17:47 WG1919995 Chloromethane ND 2.50 1 09/01/2022 17:47 WG1919995 2-Chlorotoluene ND 1.00 1 09/01/2022 17:47 WG1919995 4-Chlorotoluene ND 1.00 1 09/01/2022 17:47 WG1919995 1,2-Dibromo-3-Chloropropane ND 5.00 1 09/01/2022 17:47 WG1919995 1,2-Dibromoethane ND 1.00 1 09/01/2022 17:47 WG1919995 Dibromomethane ND 1.00 1 09/01/2022 17:47 WG1919995 1,2-Dichlorobenzene ND 1.00 1 09/01/2022 17:47 WG1919995 1,3-Dichlorobenzene ND 1.00 1 09/01/2022 17:47 WG1919995 1,4-Dichlorobenzene ND 1.00 1 09/01/2022 17:47 WG1919995 Dichlorodifluoromethane ND 5.00 1 09/01/2022 17:47 WG1919995 1,1-Dichloroethane ND 1.00 1 09/01/2022 17:47 WG1919995 1,2-Dichloroethane ND 1.00 1 09/01/2022 17:47 WG1919995 1,1-Dichloroethene ND 1.00 1 09/01/2022 17:47 WG1919995 cis-1,2-Dichloroethene ND 1.00 1 09/01/2022 17:47 WG1919995 trans-1,2-Dichloroethene ND 1.00 1 09/01/2022 17:47 WG1919995 1,2-Dichloropropane ND J4 1.00 1 09/01/2022 17:47 WG1919995 1,1-Dichloropropene ND 1.00 1 09/01/2022 17:47 WG1919995 1,3-Dichloropropane ND 1.00 1 09/01/2022 17:47 WG1919995 2,2-Dichloropropane ND 1.00 1 09/01/2022 17:47 WG1919995 Di-isopropyl ether ND 1.00 1 09/01/2022 17:47 WG1919995 Ethylbenzene ND 1.00 1 09/01/2022 17:47 WG1919995 Hexachloro-1,3-butadiene ND 1.00 1 09/01/2022 17:47 WG1919995 Isopropylbenzene ND 1.00 1 09/01/2022 17:47 WG1919995 p-Isopropyltoluene ND 1.00 1 09/01/2022 17:47 WG1919995 2-Butanone (MEK)ND 10.0 1 09/01/2022 17:47 WG1919995 Methylene Chloride ND 5.00 1 09/01/2022 17:47 WG1919995 4-Methyl-2-pentanone (MIBK)ND 10.0 1 09/01/2022 17:47 WG1919995 Methyl tert-butyl ether ND 1.00 1 09/01/2022 17:47 WG1919995 Naphthalene ND 5.00 1 09/01/2022 17:47 WG1919995 n-Propylbenzene ND 1.00 1 09/01/2022 17:47 WG1919995 Styrene ND 1.00 1 09/01/2022 17:47 WG1919995 1,1,1,2-Tetrachloroethane ND 1.00 1 09/01/2022 17:47 WG1919995 1,1,2,2-Tetrachloroethane ND 1.00 1 09/01/2022 17:47 WG1919995 Tetrachloroethene ND 1.00 1 09/01/2022 17:47 WG1919995 Toluene ND 1.00 1 09/01/2022 17:47 WG1919995 1,2,3-Trichlorobenzene ND 1.00 1 09/01/2022 17:47 WG1919995 1,2,4-Trichlorobenzene ND 1.00 1 09/01/2022 17:47 WG1919995 1,1,1-Trichloroethane ND 1.00 1 09/01/2022 17:47 WG1919995 1,1,2-Trichloroethane ND 1.00 1 09/01/2022 17:47 WG1919995 Trichloroethene ND 1.00 1 09/01/2022 17:47 WG1919995 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 15 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 15 of 27 SAMPLE RESULTS - 06 L1530266 MW-5 Collected date/time: 08/25/22 16:15 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Trichlorofluoromethane ND 5.00 1 09/01/2022 17:47 WG1919995 1,2,3-Trichloropropane ND 2.50 1 09/01/2022 17:47 WG1919995 1,2,4-Trimethylbenzene ND 1.00 1 09/01/2022 17:47 WG1919995 1,3,5-Trimethylbenzene ND 1.00 1 09/01/2022 17:47 WG1919995 Vinyl chloride ND 1.00 1 09/01/2022 17:47 WG1919995 o-Xylene ND 1.00 1 09/01/2022 17:47 WG1919995 m&p-Xylenes ND 2.00 1 09/01/2022 17:47 WG1919995 (S) Toluene-d8 108 80.0-120 09/01/2022 17:47 WG1919995 (S) 4-Bromofluorobenzene 103 77.0-126 09/01/2022 17:47 WG1919995 (S) 1,2-Dichloroethane-d4 95.9 70.0-130 09/01/2022 17:47 WG1919995 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 16 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 16 of 27 QUALITY CONTROL SUMMARYWG1919995 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1530266-02,03,04,05,06 Method Blank (MB) (MB) R3834051-2 09/01/22 09:05 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acetone U 11.3 50.0 Acrolein U 2.54 50.0 Acrylonitrile U 0.671 10.0 Benzene U 0.0941 1.00 Bromobenzene U 0.118 1.00 Bromodichloromethane U 0.136 1.00 Bromoform U 0.129 1.00 Bromomethane U 0.605 5.00 n-Butylbenzene U 0.157 1.00 sec-Butylbenzene U 0.125 1.00 tert-Butylbenzene U 0.127 1.00 Carbon tetrachloride U 0.128 1.00 Chlorobenzene U 0.116 1.00 Chlorodibromomethane U 0.140 1.00 Chloroethane U 0.192 5.00 Chloroform U 0.111 5.00 Chloromethane U 0.960 2.50 2-Chlorotoluene U 0.106 1.00 4-Chlorotoluene U 0.114 1.00 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1,2-Dibromoethane U 0.126 1.00 Dibromomethane U 0.122 1.00 1,2-Dichlorobenzene U 0.107 1.00 1,3-Dichlorobenzene U 0.110 1.00 1,4-Dichlorobenzene U 0.120 1.00 Dichlorodifluoromethane U 0.374 5.00 1,1-Dichloroethane U 0.100 1.00 1,2-Dichloroethane U 0.0819 1.00 1,1-Dichloroethene U 0.188 1.00 cis-1,2-Dichloroethene U 0.126 1.00 trans-1,2-Dichloroethene U 0.149 1.00 1,2-Dichloropropane U 0.149 1.00 1,1-Dichloropropene U 0.142 1.00 1,3-Dichloropropane U 0.110 1.00 2,2-Dichloropropane U 0.161 1.00 Di-isopropyl ether U 0.105 1.00 Ethylbenzene U 0.137 1.00 Hexachloro-1,3-butadiene U 0.337 1.00 Isopropylbenzene U 0.105 1.00 p-Isopropyltoluene U 0.120 1.00 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 17 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 17 of 27 QUALITY CONTROL SUMMARYWG1919995 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1530266-02,03,04,05,06 Method Blank (MB) (MB) R3834051-2 09/01/22 09:05 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l 2-Butanone (MEK)U 1.19 10.0 Methylene Chloride U 0.430 5.00 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 n-Propylbenzene U 0.0993 1.00 Styrene U 0.118 1.00 1,1,1,2-Tetrachloroethane U 0.147 1.00 1,1,2,2-Tetrachloroethane U 0.133 1.00 Tetrachloroethene U 0.300 1.00 Toluene U 0.278 1.00 1,2,3-Trichlorobenzene U 0.230 1.00 1,2,4-Trichlorobenzene U 0.481 1.00 1,1,1-Trichloroethane U 0.149 1.00 1,1,2-Trichloroethane U 0.158 1.00 Trichloroethene U 0.190 1.00 Trichlorofluoromethane U 0.160 5.00 1,2,3-Trichloropropane U 0.237 2.50 1,2,4-Trimethylbenzene U 0.322 1.00 1,3,5-Trimethylbenzene U 0.104 1.00 Vinyl chloride U 0.234 1.00 o-Xylene U 0.174 1.00 m&p-Xylenes U 0.430 2.00 (S) Toluene-d8 106 80.0-120 (S) 4-Bromofluorobenzene 104 77.0-126 (S) 1,2-Dichloroethane-d4 98.8 70.0-130 Laboratory Control Sample (LCS) (LCS) R3834051-1 09/01/22 08:23 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Acetone 25.0 24.6 98.4 19.0-160 Acrolein 25.0 20.9 83.6 10.0-160 Acrylonitrile 25.0 22.4 89.6 55.0-149 Benzene 5.00 4.25 85.0 70.0-123 Bromobenzene 5.00 4.50 90.0 73.0-121 Bromodichloromethane 5.00 4.40 88.0 75.0-120 Bromoform 5.00 4.43 88.6 68.0-132 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 18 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 18 of 27 QUALITY CONTROL SUMMARYWG1919995 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1530266-02,03,04,05,06 Laboratory Control Sample (LCS) (LCS) R3834051-1 09/01/22 08:23 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Bromomethane 5.00 4.54 90.8 10.0-160 n-Butylbenzene 5.00 3.99 79.8 73.0-125 sec-Butylbenzene 5.00 4.08 81.6 75.0-125 tert-Butylbenzene 5.00 4.27 85.4 76.0-124 Carbon tetrachloride 5.00 4.58 91.6 68.0-126 Chlorobenzene 5.00 4.68 93.6 80.0-121 Chlorodibromomethane 5.00 4.56 91.2 77.0-125 Chloroethane 5.00 3.75 75.0 47.0-150 Chloroform 5.00 4.66 93.2 73.0-120 Chloromethane 5.00 4.67 93.4 41.0-142 2-Chlorotoluene 5.00 4.29 85.8 76.0-123 4-Chlorotoluene 5.00 4.42 88.4 75.0-122 1,2-Dibromo-3-Chloropropane 5.00 4.01 80.2 58.0-134 1,2-Dibromoethane 5.00 4.26 85.2 80.0-122 Dibromomethane 5.00 4.73 94.6 80.0-120 1,2-Dichlorobenzene 5.00 4.38 87.6 79.0-121 1,3-Dichlorobenzene 5.00 4.35 87.0 79.0-120 1,4-Dichlorobenzene 5.00 4.50 90.0 79.0-120 Dichlorodifluoromethane 5.00 4.05 81.0 51.0-149 1,1-Dichloroethane 5.00 4.46 89.2 70.0-126 1,2-Dichloroethane 5.00 4.05 81.0 70.0-128 1,1-Dichloroethene 5.00 4.42 88.4 71.0-124 cis-1,2-Dichloroethene 5.00 4.61 92.2 73.0-120 trans-1,2-Dichloroethene 5.00 4.53 90.6 73.0-120 1,2-Dichloropropane 5.00 3.80 76.0 77.0-125 J4 1,1-Dichloropropene 5.00 4.60 92.0 74.0-126 1,3-Dichloropropane 5.00 4.61 92.2 80.0-120 2,2-Dichloropropane 5.00 4.36 87.2 58.0-130 Di-isopropyl ether 5.00 4.67 93.4 58.0-138 Ethylbenzene 5.00 4.52 90.4 79.0-123 Hexachloro-1,3-butadiene 5.00 4.05 81.0 54.0-138 Isopropylbenzene 5.00 4.44 88.8 76.0-127 p-Isopropyltoluene 5.00 4.35 87.0 76.0-125 2-Butanone (MEK)25.0 22.6 90.4 44.0-160 Methylene Chloride 5.00 4.30 86.0 67.0-120 4-Methyl-2-pentanone (MIBK)25.0 24.2 96.8 68.0-142 Methyl tert-butyl ether 5.00 4.52 90.4 68.0-125 Naphthalene 5.00 3.87 77.4 54.0-135 n-Propylbenzene 5.00 4.30 86.0 77.0-124 Styrene 5.00 4.23 84.6 73.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 19 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 19 of 27 QUALITY CONTROL SUMMARYWG1919995 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1530266-02,03,04,05,06 Laboratory Control Sample (LCS) (LCS) R3834051-1 09/01/22 08:23 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% 1,1,1,2-Tetrachloroethane 5.00 4.62 92.4 75.0-125 1,1,2,2-Tetrachloroethane 5.00 4.10 82.0 65.0-130 Tetrachloroethene 5.00 5.33 107 72.0-132 Toluene 5.00 4.54 90.8 79.0-120 1,2,3-Trichlorobenzene 5.00 4.26 85.2 50.0-138 1,2,4-Trichlorobenzene 5.00 4.08 81.6 57.0-137 1,1,1-Trichloroethane 5.00 4.75 95.0 73.0-124 1,1,2-Trichloroethane 5.00 4.64 92.8 80.0-120 Trichloroethene 5.00 4.58 91.6 78.0-124 Trichlorofluoromethane 5.00 4.63 92.6 59.0-147 1,2,3-Trichloropropane 5.00 4.40 88.0 73.0-130 1,2,4-Trimethylbenzene 5.00 4.31 86.2 76.0-121 1,3,5-Trimethylbenzene 5.00 4.24 84.8 76.0-122 Vinyl chloride 5.00 3.83 76.6 67.0-131 o-Xylene 5.00 4.38 87.6 80.0-122 m&p-Xylenes 10.0 8.90 89.0 80.0-122 (S) Toluene-d8 107 80.0-120 (S) 4-Bromofluorobenzene 103 77.0-126 (S) 1,2-Dichloroethane-d4 98.2 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 20 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 20 of 27 QUALITY CONTROL SUMMARYWG1921999 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1530266-01,02,04,05 Method Blank (MB) (MB) R3834617-3 09/06/22 12:02 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acetone U 11.3 50.0 Acrolein U 2.54 50.0 Acrylonitrile U 0.671 10.0 Benzene U 0.0941 1.00 Bromobenzene U 0.118 1.00 Bromodichloromethane U 0.136 1.00 Bromoform U 0.129 1.00 Bromomethane U 0.605 5.00 n-Butylbenzene U 0.157 1.00 sec-Butylbenzene U 0.125 1.00 tert-Butylbenzene U 0.127 1.00 Carbon tetrachloride U 0.128 1.00 Chlorobenzene U 0.116 1.00 Chlorodibromomethane U 0.140 1.00 Chloroethane U 0.192 5.00 Chloroform U 0.111 5.00 Chloromethane U 0.960 2.50 2-Chlorotoluene U 0.106 1.00 4-Chlorotoluene U 0.114 1.00 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1,2-Dibromoethane U 0.126 1.00 Dibromomethane U 0.122 1.00 1,2-Dichlorobenzene U 0.107 1.00 1,3-Dichlorobenzene U 0.110 1.00 1,4-Dichlorobenzene U 0.120 1.00 Dichlorodifluoromethane U 0.374 5.00 1,1-Dichloroethane U 0.100 1.00 1,2-Dichloroethane U 0.0819 1.00 1,1-Dichloroethene U 0.188 1.00 cis-1,2-Dichloroethene U 0.126 1.00 trans-1,2-Dichloroethene U 0.149 1.00 1,2-Dichloropropane U 0.149 1.00 1,1-Dichloropropene U 0.142 1.00 1,3-Dichloropropane U 0.110 1.00 2,2-Dichloropropane U 0.161 1.00 Di-isopropyl ether U 0.105 1.00 Ethylbenzene U 0.137 1.00 Hexachloro-1,3-butadiene U 0.337 1.00 Isopropylbenzene U 0.105 1.00 p-Isopropyltoluene U 0.120 1.00 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 21 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 21 of 27 QUALITY CONTROL SUMMARYWG1921999 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1530266-01,02,04,05 Method Blank (MB) (MB) R3834617-3 09/06/22 12:02 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l 2-Butanone (MEK)U 1.19 10.0 Methylene Chloride U 0.430 5.00 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 n-Propylbenzene U 0.0993 1.00 Styrene U 0.118 1.00 1,1,1,2-Tetrachloroethane U 0.147 1.00 1,1,2,2-Tetrachloroethane U 0.133 1.00 Tetrachloroethene U 0.300 1.00 Toluene U 0.278 1.00 1,2,3-Trichlorobenzene U 0.230 1.00 1,2,4-Trichlorobenzene U 0.481 1.00 1,1,1-Trichloroethane U 0.149 1.00 1,1,2-Trichloroethane U 0.158 1.00 Trichloroethene U 0.190 1.00 Trichlorofluoromethane U 0.160 5.00 1,2,3-Trichloropropane U 0.237 2.50 1,2,4-Trimethylbenzene U 0.322 1.00 1,3,5-Trimethylbenzene U 0.104 1.00 Vinyl chloride U 0.234 1.00 o-Xylene U 0.174 1.00 m&p-Xylenes U 0.430 2.00 (S) Toluene-d8 103 80.0-120 (S) 4-Bromofluorobenzene 101 77.0-126 (S) 1,2-Dichloroethane-d4 109 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3834617-1 09/06/22 11:02 • (LCSD) R3834617-2 09/06/22 11:22 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Acetone 25.0 28.3 28.4 113 114 19.0-160 0.353 27 Acrolein 25.0 27.6 23.5 110 94.0 10.0-160 16.0 26 Acrylonitrile 25.0 22.5 23.9 90.0 95.6 55.0-149 6.03 20 Benzene 5.00 4.70 4.72 94.0 94.4 70.0-123 0.425 20 Bromobenzene 5.00 4.37 3.95 87.4 79.0 73.0-121 10.1 20 Bromodichloromethane 5.00 5.31 5.65 106 113 75.0-120 6.20 20 Bromoform 5.00 5.18 5.03 104 101 68.0-132 2.94 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 22 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 22 of 27 QUALITY CONTROL SUMMARYWG1921999 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1530266-01,02,04,05 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3834617-1 09/06/22 11:02 • (LCSD) R3834617-2 09/06/22 11:22 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Bromomethane 5.00 5.68 6.31 114 126 10.0-160 10.5 25 n-Butylbenzene 5.00 4.65 4.89 93.0 97.8 73.0-125 5.03 20 sec-Butylbenzene 5.00 4.48 4.51 89.6 90.2 75.0-125 0.667 20 tert-Butylbenzene 5.00 4.46 4.48 89.2 89.6 76.0-124 0.447 20 Carbon tetrachloride 5.00 5.65 5.95 113 119 68.0-126 5.17 20 Chlorobenzene 5.00 4.92 5.10 98.4 102 80.0-121 3.59 20 Chlorodibromomethane 5.00 5.26 5.18 105 104 77.0-125 1.53 20 Chloroethane 5.00 4.84 5.74 96.8 115 47.0-150 17.0 20 Chloroform 5.00 5.03 5.36 101 107 73.0-120 6.35 20 Chloromethane 5.00 5.21 5.35 104 107 41.0-142 2.65 20 2-Chlorotoluene 5.00 4.43 4.25 88.6 85.0 76.0-123 4.15 20 4-Chlorotoluene 5.00 4.64 4.59 92.8 91.8 75.0-122 1.08 20 1,2-Dibromo-3-Chloropropane 5.00 4.49 4.53 89.8 90.6 58.0-134 0.887 20 1,2-Dibromoethane 5.00 4.65 4.63 93.0 92.6 80.0-122 0.431 20 Dibromomethane 5.00 5.30 5.54 106 111 80.0-120 4.43 20 1,2-Dichlorobenzene 5.00 4.53 4.89 90.6 97.8 79.0-121 7.64 20 1,3-Dichlorobenzene 5.00 4.74 4.70 94.8 94.0 79.0-120 0.847 20 1,4-Dichlorobenzene 5.00 4.47 5.14 89.4 103 79.0-120 13.9 20 Dichlorodifluoromethane 5.00 5.20 5.46 104 109 51.0-149 4.88 20 1,1-Dichloroethane 5.00 4.85 5.19 97.0 104 70.0-126 6.77 20 1,2-Dichloroethane 5.00 4.89 5.15 97.8 103 70.0-128 5.18 20 1,1-Dichloroethene 5.00 4.81 5.15 96.2 103 71.0-124 6.83 20 cis-1,2-Dichloroethene 5.00 4.94 5.02 98.8 100 73.0-120 1.61 20 trans-1,2-Dichloroethene 5.00 5.12 5.42 102 108 73.0-120 5.69 20 1,2-Dichloropropane 5.00 4.60 4.69 92.0 93.8 77.0-125 1.94 20 1,1-Dichloropropene 5.00 5.06 5.24 101 105 74.0-126 3.50 20 1,3-Dichloropropane 5.00 5.01 4.97 100 99.4 80.0-120 0.802 20 2,2-Dichloropropane 5.00 5.54 5.79 111 116 58.0-130 4.41 20 Di-isopropyl ether 5.00 5.18 5.15 104 103 58.0-138 0.581 20 Ethylbenzene 5.00 4.72 4.80 94.4 96.0 79.0-123 1.68 20 Hexachloro-1,3-butadiene 5.00 4.61 4.48 92.2 89.6 54.0-138 2.86 20 Isopropylbenzene 5.00 4.64 4.60 92.8 92.0 76.0-127 0.866 20 p-Isopropyltoluene 5.00 4.60 4.47 92.0 89.4 76.0-125 2.87 20 2-Butanone (MEK)25.0 26.2 27.4 105 110 44.0-160 4.48 20 Methylene Chloride 5.00 4.78 4.95 95.6 99.0 67.0-120 3.49 20 4-Methyl-2-pentanone (MIBK)25.0 28.0 27.1 112 108 68.0-142 3.27 20 Methyl tert-butyl ether 5.00 5.15 5.38 103 108 68.0-125 4.37 20 Naphthalene 5.00 4.01 4.22 80.2 84.4 54.0-135 5.10 20 n-Propylbenzene 5.00 4.37 3.99 87.4 79.8 77.0-124 9.09 20 Styrene 5.00 4.16 4.27 83.2 85.4 73.0-130 2.61 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 23 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 23 of 27 QUALITY CONTROL SUMMARYWG1921999 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1530266-01,02,04,05 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3834617-1 09/06/22 11:02 • (LCSD) R3834617-2 09/06/22 11:22 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% 1,1,1,2-Tetrachloroethane 5.00 5.03 5.21 101 104 75.0-125 3.52 20 1,1,2,2-Tetrachloroethane 5.00 4.62 4.33 92.4 86.6 65.0-130 6.48 20 Tetrachloroethene 5.00 5.39 5.51 108 110 72.0-132 2.20 20 Toluene 5.00 4.82 5.05 96.4 101 79.0-120 4.66 20 1,2,3-Trichlorobenzene 5.00 4.58 4.78 91.6 95.6 50.0-138 4.27 20 1,2,4-Trichlorobenzene 5.00 4.75 4.60 95.0 92.0 57.0-137 3.21 20 1,1,1-Trichloroethane 5.00 5.57 5.67 111 113 73.0-124 1.78 20 1,1,2-Trichloroethane 5.00 4.94 4.63 98.8 92.6 80.0-120 6.48 20 Trichloroethene 5.00 4.88 5.10 97.6 102 78.0-124 4.41 20 Trichlorofluoromethane 5.00 5.70 6.17 114 123 59.0-147 7.92 20 1,2,3-Trichloropropane 5.00 4.15 4.20 83.0 84.0 73.0-130 1.20 20 1,2,4-Trimethylbenzene 5.00 4.16 4.48 83.2 89.6 76.0-121 7.41 20 1,3,5-Trimethylbenzene 5.00 4.31 4.23 86.2 84.6 76.0-122 1.87 20 Vinyl chloride 5.00 4.97 5.86 99.4 117 67.0-131 16.4 20 o-Xylene 5.00 4.61 4.59 92.2 91.8 80.0-122 0.435 20 m&p-Xylenes 10.0 9.45 9.23 94.5 92.3 80.0-122 2.36 20 (S) Toluene-d8 104 101 80.0-120 (S) 4-Bromofluorobenzene 107 101 77.0-126 (S) 1,2-Dichloroethane-d4 108 112 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 24 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 24 of 27 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J4 The associated batch QC was outside the established quality control range for accuracy. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 25 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 25 of 27 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/07/22 15:31 26 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Terracon - Greensboro, NC 7520711B L1530266 09/08/22 09:12 26 of 27