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HomeMy WebLinkAboutWS-3254_9547_CA_MRP_20180601 GROUNDWATER MONITORING REPORT JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NORTH CAROLINA NCDEQ INCIDENT NUMBER: 9547 NCDEQ CONTRACT NUMBER: N17006 ECS PROJECT 49-6166 PREPARED FOR: NCDEQ, UST SECTION RALEIGH, NORTH CAROLINA June 1, 2018 June 1, 2018 Mr. Herbert Berger NCDEQ, Division of Waste Management, UST Section 1637 Mail Service Center Raleigh, North Carolina 27699-1637 Reference: Groundwater Monitoring Report Task Authorization Request No. 1 – Jerry’s Place 983 Highway 21 State Road, Surry County, North Carolina NCDEQ Incident No.: 9547 NCDEQ Contract No. 17006 ECS Project 49-6166 Dear Mr. Berger: As authorized by your acceptance of ECS Southeast, LLP’s (ECS) Task Authorization Request No. 1 dated February 5, 2018, ECS has prepared a Groundwater Monitoring Report for the above referenced site. This report includes a description of the work performed, the results obtained, and our conclusions and recommendations. ECS appreciates the opportunity to provide our environmental consulting services to you on this project. If you have any questions concerning this report or this project, please contact us at (336) 856-7150. Sincerely, ECS SOUTHEAST, LLP Ashley Barham Assistant Staff Project Manager John S. Lair, P.G. Principal Geologist Groundwater Monitoring Report Task Authorization Request No. 1 – Jerry’s Place 983 Highway 21 State Road, Surry County, North Carolina NCDEQ Incident No.: 9547 NCDEQ Contract No. N17006 ECS Project 49-6166 June 1, 2018 SITE INFORMATION Site Name: Jerry’s Place Site Address: 983 Highway 21 State Road, North Carolina 28676 Facility ID Number: 0-008572 NCDEQ Incident Number: 9547 Site Risk Ranking: High (Assigned) Land Use Category: Residential (Assigned) Latitude/Longitude: 36.3259656 N / 80.867567 W Responsible Party: Jerry Harris 163 Royall Road Thurmond, North Carolina 28683 Current Property Owner: Ted and Jamie Roberts 1300 N. Bridge St. Ste. 100 Elkin, North Carolina 28621 Primary Contact: Mr. Herbert Berger NCDEQ, Division of Waste Management, UST Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Primary Consultant: ECS Southeast, LLP 4811 Koger Boulevard Greensboro, North Carolina 27407 (336) 856-7150 Laboratory: Prism Laboratories, Inc. 449 Springbrook Road Charlotte, North Carolina 28224 704-529-6364 Laboratory Certification No. 402 Groundwater Monitoring Report Task Authorization Request No. 1 – Jerry’s Place 983 Highway 21 State Road, Surry County, North Carolina NCDEQ Incident No.: 9547 NCDEQ Contract No. N17006 ECS Project 49-6166 June 1, 2018 TABLE OF CONTENTS 1.0 PROJECT INFORMATION ................................................................................................... 5 2.0 GROUNDWATER ASSESSMENT ........................................................................................ 5 3.0 RESULTS ............................................................................................................................. 6 4.0 CONCLUSIONS AND RECOMMENDATIONS ...................................................................... 7 FIGURES Figure 1 Site Location Map Figure 2 Aerial Site Map Figure 3 Monitoring Well Location Map Figure 4 Water Supply Well Location Map Figure 5 Groundwater Elevation Map Figure 6 Benzene Isoconcentration Map Figure 7 Toluene Isoconcentration Map Figure 8 Ethylbenzene Isoconcentration Map Figure 9 Total Xylenes Isoconcentration Map Figure 10 Naphthalene Isoconcentration Map TABLES Table 1 Monitoring Well Information and Groundwater Elevation Data Table 2 Summary of Monitoring Well Groundwater Analytical Results Table 3 Summary of Water Supply Well Groundwater Analytical Results Table 4 Geochemical Measurements APPENDIX Appendix A Laboratory Data Sheets and Chain of Custody Record Appendix B Field Data Sheets Appendix C Photo Log Groundwater Monitoring Report Task Authorization Request No. 1 – Jerry’s Place 983 Highway 21 State Road, Surry County, North Carolina NCDEQ Incident No.: 9547 NCDEQ Contract No. N17006 ECS Project 49-6166 June 1, 2018 1.0 PROJECT INFORMATION The subject site is Jerry’s Place located at 983 Highway 21 in State Road, Surry County, North Carolina (Figure 1 and Figure 2). Based on information provided to ECS, four 4,000-gallon gasoline underground storage tanks (USTs) were removed from the site in October 1992. During closure activities, free product was observed flowing into a test pit that was excavated to a depth of approximately 19 feet below the ground surface (bgs). Petroleum hydrocarbons were detected in soil samples collected from the UST basin and dispenser areas. The closure was concluded by soil excavation and remediation of approximately 1,029 tons of soil. Between 1993 and 1994, eight monitoring wells (MW-1 through MW-8) and two recovery wells (RW-5 and RW-6) were installed at the site. Monitoring well MW-1 is presumed destroyed and recovery well RW-6 is presumed paved over based on a 2008 report. An aggressive fluid vapor recovery (AFVR) event was conducted in 1996 and a mobile multi-phase extraction (MMPE) event was conducted in 2001. Free product was not observed following the MMPE event until 2008 when 0.05 feet of free product was measured in monitoring well MW-2. Groundwater samples were collected from various monitoring wells on the site in 1993, 2009, 2010, 2011, 2014, and most recently by ECS in 2015. The contaminant concentrations in the impacted monitoring wells have generally decreased since the 1993 sampling event. Sixteen water-supply wells have been identified within 1,000 feet of the site. Methyl-tert-butyl-ether (MTBE) has been detected in one water supply well (WSW-5) since 2009; however, the concentrations have been below the North Carolina 2L Groundwater Quality Standard (NC2LGWQS). Municipal water is not available to the site or surrounding properties. The nearest surface water body is a stream located approximately 230 feet east of the source area. The estimated quantity of the release is unknown. 2.0 GROUNDWATER ASSESSMENT 2.1 Monitoring Well Sampling On February 20, 2018, ECS personnel collected a field blank and groundwater samples from four monitoring and recovery wells (MW-2/RW-2, MW-3/RW-3, MW-4/RW-4, and MW-5). The locations of the wells are shown on Figure 3. After sampling was completed, an O-Sox device was installed in monitoring wells MW-2/RW-2 and MW-3/RW-3. Prior to sampling, ECS collected a field blank by pouring DI water over the water level meter prove and into the appropriate laboratory prepared sampled containers. Prior to sampling, the monitoring wells were purged using a new disposable polyethylene bailer and new length of nylon cord. The monitoring wells were developed/purged by evacuating a minimum of three well volumes using the bailer and cord. The monitoring wells were developed/purged to remove sand, silt and other fine sediments and to promote communication between the surrounding formation and the sand pack surrounding the well’s screened interval. After purging was completed, the sampler wearing a new pair of disposable nitrile gloves for each sampling point poured the groundwater sample from the bailer into laboratory prepared containers. Each container was labeled and placed in a cooler containing ice to maintain the samples at approximately 4 Celsius. The sample containers were then submitted to Prism Laboratories, Inc. (Prism) in Groundwater Monitoring Report Task Authorization Request No. 1 – Jerry’s Place 983 Highway 21 State Road, Surry County, North Carolina NCDEQ Incident No.: 9547 NCDEQ Contract No. N17006 ECS Project 49-6166 June 1, 2018 Charlotte, North Carolina to be analyzed for volatile organic compounds (VOCs) using Standard Method 6200B. A Chain of Custody Record was maintained and is included in the Appendix A. 2.2 Water Supply Well Sampling On February 20, 2018, ECS collected a sample from one water-supply well (WSW-5) located in the vicinity of the site. The location of the well is shown on Figure 4. Prior to sampling, the water supply well and household plumbing were purged by allowing the water to run for approximately 20 minutes. After purging was completed, the sampler wearing a new pair of disposable nitrile gloves, poured the water sample into laboratory prepared containers. Each container was labeled and placed in a cooler containing ice to maintain the samples at approximately 4 Celsius. The sample containers were then submitted to Prism to be analyzed for VOCs using Standard Method 6200B. 2.3 Groundwater Chemistry Prior to collecting the groundwater samples, geochemical parameters (temperature, pH, dissolved oxygen, and conductivity) were measured using a YSI Model 560 meter. The turbidity was observed during the sampling and recorded on the Groundwater Sampling Data Sheets (Appendix B). 2.4 Groundwater Flow Direction On February 20, 2018, ECS measured the static water level (SWL) in four monitoring and recovery wells using a decontaminated electronic water level meter. The static water levels and top of casing elevations were used to calculate groundwater flow direction. The static water level measurements can be found on Table 1. 3.0 RESULTS 3.1 Groundwater Flow Direction Groundwater at the site is flowing to the southeast under a gradient of 0.016ft/ft as determined between MW-2/RW-2 and MW-4 (Figure 5). 3.2 Monitoring Well Sampling Results Laboratory analysis of groundwater samples collected from monitoring wells MW-2/RW-2 and MW-3/RW-3 detected multiple targeted compounds that exceed their respective NC2LGWQS; however, the concentrations did not exceed their respective GCLs. Laboratory analysis of the groundwater sample collected from monitoring well MW-4/RW-4 detected benzene above its NC2LGWQS, but below its GCL. Laboratory analysis of the groundwater sample collected from monitoring well MW-5 and the field blank did not detect targeted compounds above their laboratory detection limits. No free product was observed in the site monitoring wells. A summary of the current and historical groundwater analytical results is included in Table 2. The laboratory data sheets are included in the Appendix B. Groundwater Monitoring Report Task Authorization Request No. 1 – Jerry’s Place 983 Highway 21 State Road, Surry County, North Carolina NCDEQ Incident No.: 9547 NCDEQ Contract No. N17006 ECS Project 49-6166 June 1, 2018 3.3 Water Supply Well Sampling Results Laboratory analysis of groundwater sample WSW-5 detected MTBE at a concentration of 1.2 parts per billion (ppb); however, the concentration does not exceed its NC2LGWQS of 20 ppb. Upon receipt of the laboratory data, the groundwater sample results were forwarded to the NCDEQ for their review and evaluation. A summary of the current and historical groundwater analytical results are included in Table 3. 3.4 Groundwater Chemistry Based on the geochemical data, the average groundwater temperature was 17.5° C and the average conductivity was 0.138mS/cm. The pH ranged from a low of 5.65 to 7.67 and the dissolved oxygen (DO) ranged from 4.27 mg/l to 5.87 mg/l. The geochemical measurements are shown on Table 4. 4.0 CONCLUSIONS AND RECOMMENDATIONS Based on the results of this groundwater sampling event, ECS concludes that the concentrations of petroleum-related hydrocarbons have decreased in the monitoring wells and water supply well since the last sampling event. An O-Sox device was installed in monitoring wells MW-2/RW-2 and MW-3/RW-3. ECS recommends resampling monitoring wells MW-2/RW-2, MW-3/RW-3, MW-4/RW-4, and MW-5 and water supply well WSW-5 in six months. ECS also recommends abandoning monitoring wells MW-6, MW-7 and MW-8 as they have either been dry or clean since sampling began in 1994. ECS recommends a copy of this report be provided to the property owner. FIGURES SOURCE: USGS TOPOGRAPHIC MAP ELKIN NORTH, NC QUADRANGLE DATED 1971, REVISED 1994 FIGURE 1 SITE LOCATION MAP JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NC INCIDENT #9547 ECS PROJECT NO. 49-6166 SITE APPROXIMATE SITE BOUNDARY SCALE (IN FEET) 2,000 1,000 0 2,000 SOURCE: SURRY COUNTY GIS AERIAL PHOTOGRAPH, DATED 2013 FIGURE 2 AERIAL SITE MAP JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NC INCIDENT #9547 ECS PROJECT NO. 49-6166 APPROXIMATE SITE BOUNDARY LEGEND 1. News Topic 2. Office Building with The Floyd Group, Edward Jones Investments, and a hair salon 3. Cross Roads Shopping Center 4. The House of Lora 5. WW Auto Works 6. BudBuilt.com 7. Bonnie Mist Car Wash 8. Office Building with Neal York Life Insurance Company and TLC Jewelers 9. McDonald’s 10. Piedmont Cleaners Current/Former Drycleaner Former Phillips 66 Service Station  1  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15        SCALE (IN FEET) 100 50 0 100 SOURCE: S&ME MONITORING REPORT, DATED 2010 FIGURE 3 MONITORING WELL LOCATION MAP JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NC INCIDENT #9547 ECS PROJECT NO. 49-6166 APPROXIMATE SITE BOUNDARY LEGEND 1. News Topic 2. Office Building with The Floyd Group, Edward Jones Investments, and a hair salon 3. Cross Roads Shopping Center 4. The House of Lora 5. WW Auto Works 6. BudBuilt.com 7. Bonnie Mist Car Wash 8. Office Building with Neal York Life Insurance Company and TLC Jewelers 9. McDonald’s 10. Piedmont Cleaners Current/Former Drycleaner Former Phillips 66 Service Station  1  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15        SCALE (IN FEET) 100 50 0 100 EXISTING BUILDING SOURCE: SURRY COUNTY GIS AERIAL PHOTOGRAPH, DATED 2013 FIGURE 4 WATER SUPPLY WELL LOCATION MAP JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NC INCIDENT #9547 ECS PROJECT NO. 49-6166 APPROXIMATE SITE BOUNDARY LEGEND 1. News Topic 2. Office Building with The Floyd Group, Edward Jones Investments, and a hair salon 3. Cross Roads Shopping Center 4. The House of Lora 5. WW Auto Works 6. BudBuilt.com 7. Bonnie Mist Car Wash 8. Office Building with Neal York Life Insurance Company and TLC Jewelers 9. McDonald’s 10. Piedmont Cleaners Current/Former Drycleaner Former Phillips 66 Service Station  1  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15        500’ 1000’’ 1500’ WSW-16 WSW-15 WSW-14 WSW-13 WSW-1 WSW-3 WSW-6 WSW-5 WSW-12 WSW-4 WSW-11 WSW-10 WSW-9 WSW-2 WSW-8 WSW-7 SCALE (IN FEET) 500 250 0 500 SOURCE: S&ME MONITORING REPORT DATED 2010 FIGURE 5 GROUNDWATER ELEVATION MAP JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NC INCIDENT #9547 ECS PROJECT NO. 49-6166 APPROXIMATE SITE BOUNDARY  1  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15        SCALE (IN FEET) 100 50 0 100 (74.99) (73.84) (72.69) (74.11) NM NM NM NM NM 74 73 EXISTING BUILDING SOURCE: S&ME MONITORING REPORT DATED 2010 FIGURE 6 ISOCONCENTRATION MAP OF BENZENE JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NC INCIDENT #9547 ECS PROJECT NO. 49-6166 APPROXIMATE SITE BOUNDARY  1  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15        SCALE (IN FEET) 100 50 0 100 1,300 <0.5 6.4 54 NS NS NS NS NS BQL 50 1,000 EXISTING BUILDING SOURCE: S&ME MONITORING REPORT DATED 2010 FIGURE 7 ISOCONCENTRATION MAP OF TOLUENE JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NC INCIDENT #9547 ECS PROJECT NO. 49-6166 APPROXIMATE SITE BOUNDARY LEGEND 1. News Topic 2. Office Building with The Floyd Group, Edward Jones Investments, and a hair salon 3. Cross Roads Shopping Center 4. The House of Lora 5. WW Auto Works 6. BudBuilt.com 7. Bonnie Mist Car Wash 8. Office Building with Neal York Life Insurance Company and TLC Jewelers 9. McDonald’s 10. Piedmont Cleaners Current/Former Drycleaner Former Phillips 66 Service Station  1  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15        SCALE (IN FEET) 100 50 0 100 150 <0.5 <0.5 4.3 NS NS NS NS NS <0.5 100 EXISTING BUILDING SOURCE: S&ME MONITORING REPORT DATED 2010 FIGURE 8 ISOCONCENTRATION MAP OF ETHYLBENZENE JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NC INCIDENT #9547 ECS PROJECT NO. 49-6166 APPROXIMATE SITE BOUNDARY LEGEND 1. News Topic 2. Office Building with The Floyd Group, Edward Jones Investments, and a hair salon 3. Cross Roads Shopping Center 4. The House of Lora 5. WW Auto Works 6. BudBuilt.com 7. Bonnie Mist Car Wash 8. Office Building with Neal York Life Insurance Company and TLC Jewelers 9. McDonald’s 10. Piedmont Cleaners Current/Former Drycleaner Former Phillips 66 Service Station  1  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15        SCALE (IN FEET) 100 50 0 100 750 <0.5 <0.5 110 NS NS NS NS NS <0.5 500 EXISTING BUILDING SOURCE: S&ME MONITORING REPORT DATED 2010 FIGURE 9 ISOCONCENTRATION MAP OF TOTAL XYLENES JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NC INCIDENT #9547 ECS PROJECT NO. 49-6166 APPROXIMATE SITE BOUNDARY LEGEND 1. News Topic 2. Office Building with The Floyd Group, Edward Jones Investments, and a hair salon 3. Cross Roads Shopping Center 4. The House of Lora 5. WW Auto Works 6. BudBuilt.com 7. Bonnie Mist Car Wash 8. Office Building with Neal York Life Insurance Company and TLC Jewelers 9. McDonald’s 10. Piedmont Cleaners Current/Former Drycleaner Former Phillips 66 Service Station  1  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15        SCALE (IN FEET) 100 50 0 100 (1,200) (<0.5) (<0.5) (290) NS NS NS NS NS <0.5 1,000 EXISTING BUILDING SOURCE: S&ME MONITORING REPORT DATED 2010 FIGURE 10 ISOCONCENTRATION MAP OF NAPTHALENE JERRY’S PLACE 983 HIGHWAY 21 STATE ROAD, SURRY COUNTY, NC INCIDENT #9547 ECS PROJECT NO. 49-6166 APPROXIMATE SITE BOUNDARY LEGEND 1. News Topic 2. Office Building with The Floyd Group, Edward Jones Investments, and a hair salon 3. Cross Roads Shopping Center 4. The House of Lora 5. WW Auto Works 6. BudBuilt.com 7. Bonnie Mist Car Wash 8. Office Building with Neal York Life Insurance Company and TLC Jewelers 9. McDonald’s 10. Piedmont Cleaners Current/Former Drycleaner Former Phillips 66 Service Station  1  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15        SCALE (IN FEET) 100 50 0 100 (230) <0.5 (4.5) (160) NS NS NS NS NS <0.5 150 200 EXISTING BUILDING TABLES Jerry's PlaceState Road, Surry County, North CarolinaNCDEQ Incident # 9547 ECS Project 49-6166 TABLE 1: MONITORING WELL INFORMATION AND GROUNDWATER ELEVATION DATA WELL ID #DATE WATER LEVEL MEASURED WELL CASING DIAMETER (in) SCREEN INTERVAL TOP OF CASING ELEVATION* (ft.) DEPTH TO WATER FROM TOP OF CASING (ft.) GROUNDWATER ELEVATION** (ft.) 5/24/1993 16.20 85.25 1/31/1994 21.51 79.94 3/15/1994 19.77 81.68 5/24/1993 13.30 84.69 1/31/1994 17.92(P) 18.70(W)79.95** 3/15/1994 16.28(P) 16.97(W)81.61** 10/7/2009 19.97 78.024/22/2010 15.31 82.689/13/2011 22.04 75.95 6/27/2014 17.36 80.63 9/22/2015 22.28 75.71 2/20/2018 23.00 74.99 5/24/1993 12.80 84.06 1/31/1994 17.35 79.51 3/15/1994 15.68 81.18 10/7/2009 19.14 77.72 4/22/2010 14.70 82.16 9/13/2011 21.51 75.359/22/2015 21.31 75.552/20/2018 22.75 74.11 5/24/1993 15.95 79.99 1/31/1994 19.88 76.063/15/1994 18.71 77.23 10/7/2009 20.99 74.95 4/22/2010 17.41 78.53 9/13/2011 22.64 73.36/27/2014 18.55 77.399/22/2015 22.35 73.592/20/2018 23.25 72.69 5/24/1993 1.98 78.591/31/1994 4.99 75.583/15/1994 4.14 76.4310/7/2009 5.88 74.69 4/22/2010 3.38 77.19 9/13/2011 7.51 73.06 6/27/2014 4.30 76.27 9/22/2015 7.61 72.962/20/2018 6.73 73.84 1/31/1994 19.25 80.38 3/15/1994 17.36 82.27 10/7/2009 21.22 78.41 4/22/2010 16.19 83.44 9/13/2011 23.36 76.276/27/2014 18.40 81.23 1/31/1994 24.10 73.1 3/15/1994 22.81 74.39 10/7/2009 24.43 72.774/22/2010 21.83 75.379/13/2011 DRY <72.059/28/2011 DRY <72.05 6/27/2014 23.40 73.8 1/31/1994 23.96 74.553/15/1994 22.42 76.0910/7/2009 24.38 74.13 4/22/2010 21.10 77.41 9/13/2011 DRY <73.46 9/28/2011 DRY <73.466/27/2014 22.98 75.53 NOTES: * Reference point for Elevation Measurements: Previous benchmark Assumed Elevation: 100.00 ft. ** If free product is present, groundwater elevation is calculated by : [Top of Casing Elevation - DW] + [FP thickness x 0.8581] ft BGS: feet below ground surfaceft. AGS: ft above ground surfaceND: Free product not detected(P)- Free Product (W)- Water MW-7 MW-2/RW-2 MW-3/RW-3 MW-4/RW-4 MW-5 MW-1 2 2 4 4 4 2 2 MW-8 MW-6 9 - 154 98.51 15.5 - 25.5 15.5 - 25.5 15.5 - 25.5 2 - 12 10 - 30 12 - 32 15.5 - 25.5 101.45 97.2 99.63 80.57 95.94 96.86 97.99 Jerry's Place State Road, Surry County, North CarolinaNCDEQ Incident # 9547 ECS Project 49-6166 TABLE 2: SUMMARY OF GROUNDWATER ANALYTICAL RESULTS Sample Identification MW-1Sample Date 5/24/1993 5/23/1993 10/7/2009 4/22/2010 9/13/2011 6/27/2014 9/22/2015 2/20/2018 5/24/1993 10/7/2009 4/22/2010 9/13/2011 6/27/2014 9/22/2015 2/20/2018 1/31/1994 10/7/2009 4/22/2010 9/13/2011 6/27/2014 1/31/1994 10/7/2009 4/22/2010 9/13/2011 6/27/2014 Acetone NA NA 2,400 1,700 230J <25 <25 <25 NA 600 130 <60 <25 <25 <25 NA <0.5 <0.5 <1.5 <25 NA DRY <0.5 DRY <25 6,000 6,000,000 Benzene 5 14,000 2,400 1,700 2,300 1,830 1,410 1,300 9,200 600 130 180 93.8 79.1 54 <1 <0.5 <0.5 <.054 <0.5 <1 DRY <0.5 DRY <0.5 1 5,000n-Butylbenzene NA NA 26 63 23 21 <0.5 20 NA 50 76 44 23.3 <0.5 28 NA <1 <1 <.059 <0.5 NA DRY <1 DRY <0.5 70 6,900 tert-Butylbenzene NA NA <5 <20 <1.4 <0.5 <0.5 <0.5 NA <5 <20 <4.3 <5 <0.5 <0.5 NA <0.5 <0.5 <.11 <5 NA DRY <0.5 DRY <5 70 15,000Toluene<1 54,000 800 1,400 4,000 6,390 1,120 150 26,000 1,500 750 210 80.2 23.5 4.3 <1 <0.5 <0.5 <0.057 <5 <1 DRY <0.5 DRY <5 600 260,000 Isopropyl ether NA NA 70 78 56 16 20.6 19.0 NA 16 <20 <1.7 <20 <0.5 <0.5 NA <0.5 <0.5 <.41 <0.5 NA DRY <0.5 DRY <0.5 70 70,000n-Propylbenzene NA NA ND ND 180 224 <0.5 150 NA ND ND 250 185 174 140 NA ND ND <0.059 <0.5 NA DRY ND DRY <0.5 70 30,000 Ethylbenzene <1 2000 960 1,200 1,300 1,530 1,270 750 1,100 910 840 730 381 234 110 <1 <0.5 <0.5 <0.054 <1 <1 DRY <0.5 DRY <1 600 84,500Isopropyl benzene NA NA 95 100 91 80 100 110 NA 120 130 100 84.9 78.7 68 NA <0.5 <0.5 <0.034 <0.5 NA DRY <0.5 DRY <0.5 70 25,000 Methyl Tert Butyl Ether 41 25,000 380 260 220 <0.5 74 51 17,000 79 56 <2.2 <0.5 <0.5 <0.5 <1 <0.5 <0.5 <0.056 <0.5 <1 DRY <0.5 DRY <0.5 20 20,000NaphthaleneNANA590600560761403230NA570660490448175160NA<2 <1 <.0094 <0.5 NA DRY <1 DRY <0.5 6 6,000 Methyl ethyl ketone NA NA 130 170 <33 <25 <0.5 <0.5 NA 270 300 <33 <25 <0.5 <0.5 NA <0.5 <0.5 <0.83 <0.5 NA DRY <0.5 DRY <0.5 4,000 4,000,0002-Hexanone NA NA NA <5 100 <5 <0.5 8.4 J NA NA <4.5 32J <5 <0.5 <0.5 NA NA <.11 <0.11 <5 NA DRY <0.11 DRY <5 280 280,000 p-Isopropyltoluene NA NA 13 40 <2.4 28.8 <0.5 <0.5 NA 21 45 <2.4 22.1 <0.5 <0.5 NA <0.5 <0.5 <0.059 <0.5 NA DRY <0.5 DRY <0.5 25 11,700sec-Butylbenzene NA NA 17 44 20 <0.5 <0.5 14 NA 29 52 34 15.9 17.8 19 NA <0.5 <0.5 <0.054 <0.5 NA DRY <0.5 DRY <0.5 70 8,500 Xylenes (total)<1 17,000 1,230 3,800 5,500 7,320 4,750 1,200 7,900 5,600 6,700 3,900 2,060 1,010 290 <1 <1 <1 <0.11 <0.5 <1 DRY <1 DRY <0.5 500 85,5001,2,4-Trimethylbenzene NA NA 350 1,300 1,500 2,300 2,010 590 NA 2,300 2,900 2,000 1,350 1,160 580 NA <0.5 <0.5 <0.038 <0.5 NA DRY <0.5 DRY <0.5 400 28,500 1,3,5-Trimethylbenzene NA NA 100 420 460 600 599 230 NA 620 840 570 393 333 170 NA <0.5 <0.5 <0.038 <0.5 NA DRY <0.5 DRY <0.5 400 25,500 Sample IdentificationSample Date 5/24/1993 10/7/2009 4/22/2010 9/13/2011 6/27/2014 9/22/2015 2/20/2018 5/24/1993 10/7/2009 4/22/2010 9/13/2011 6/27/2014 9/22/2015 2/20/2018 3/16/1994 10/7/2009 4/22/2010 9/13/2011 6/27/2014 10/7/2009 4/22/2010 9/13/2011 6/27/2014 Acetone NA NA NA <15 <25 <25 <25 NA 11 <0.5 <1.5 <25 <25 <25 NA DRY <0.5 DRY <25 300 470 <.59 <25 6,000 6,000,000 Benzene 540 430 250 190 7.55 14.4 6.4 4 11 <0.5 <0.054 <0.5 <0.5 <0.5 2 DRY <0.5 DRY <0.5 300 470 110 <0.5 1 5,000n-Butylbenzene NA 19 8.5 12 0.63 <0.5 1.1 NA 1.4 <1 <0.059 <0.5 <0.5 <0.5 NA DRY <1 DRY <0.5 14 14 6.4 <0.5 70 6,900 tert-Butylbenzene NA 0.91 0.83 <1.1 <5 <0.5 <0.5 NA <0.5 <0.5 <.11 <5 <5 <0.5 NA DRY <0.5 DRY <5 <0.5 <5 <1.1 <5 70 15,000Toluene923.8 2.4 <0.57 <5 <0.5 <0.5 19 <0.5 <0.5 <0.057 <5 <5 <0.5 6 DRY <0.5 DRY <5 580 330 300 477 600 260,000 Isopropyl ether NA 9.2 6.8 <0.42 0.85 1.1 0.66 NA <0.5 <0.5 <0.41 <0.5 <0.5 <0.5 NA DRY <0.5 DRY <0.5 6.2 20 <.42 <0.5 70 70,000n-Propylbenzene NA ND ND 20 2.42 1.4 1.4 NA ND ND <0.059 <0.5 <0.5 <0.5 NA DRY ND DRY <0.5 ND ND 160 103 70 30,000 Ethylbenzene <1 5.3 1.5 <5 <1 <0.5 <0.5 2 2.3 <0.5 <0.054 <1 <1 <0.5 2 DRY <0.5 DRY <1 1100 550 12000 468 600 84,500Isopropyl benzene NA 110 50 93 15.5 23.1 15 NA 2.9 <0.5 <0.034 <0.5 <0.5 <0.5 NA DRY <0.5 DRY <0.5 85 51 83 35.5 70 25,000 Methyl Tert Butyl Ether 380 62 59 42 7.14 8.9 4.5 48 3.8 0.92 <0.056 <0.5 0.75 0.75 1 DRY <0.5 DRY <0.5 34 68 15 <0.5 20 20,000NaphthaleneNA5201402105.43 13.5 4.5 NA 6.8 <1 <0.094 <0.5 <0.5 <0.5 NA DRY <1 DRY <0.5 560 150 380 238 6 6,000 Methyl ethyl ketone NA 34 14 <8.3 <25 <0.5 <0.5 NA 0.66 <0.5 <.83 <0.5 <0.5 <0.5 NA DRY <0.5 DRY <0.5 170 57 <8.3 <0.5 4,000 4,000,0002-Hexanone NA NA <0.11 <1.1 <5 <0.5 <0.5 NA NA <1.1 <.11 <5 <5 <0.5 NA DRY <.11 DRY <5 <5 <5 7.8J <5 280 280,000 p-Isopropyltoluene NA 4.1 2.3 <5.9 <2.5 <0.5 <0.5 NA 0.98 <0.5 <0.059 <0.5 <0.5 <0.5 NA DRY <0.5 DRY <0.5 6.3 9.8 <.59 <0.5 25 11,700sec-Butylbenzene NA 12 6.5 11 2.3 3.8 3.5 NA 1.1 <0.5 <0.054 <0.5 <0.5 <0.5 NA DRY <0.5 DRY <0.5 9.9 11 9.6 <0.5 70 8,500 Xylenes (total)450 15.4 11 10.7J <5 <1 <1 23 6.6 <1 <0.11 <0.5 <0.5 <0.5 6 DRY <1 DRY <0.5 3,300 950 2,700 1,290 500 85,5001,2,4-Trimethylbenzene NA 12 7.6 <.38 0.8 <0.5 <0.5 NA 5.5 <0.5 <0.038 <0.5 <0.5 <0.5 NA DRY <0.5 DRY <0.5 1,100 280 1,100 794 400 28,500 1,3,5-Trimethylbenzene NA 3.6 1.6 <.38 <0.5 <0.5 <0.5 NA 0.98 <0.5 <0.038 <0.5 <0.5 <0.5 NA DRY <0.5 DRY <0.5 300 84 260 164 400 25,500Notes:Results are in ug/L or parts per billion (ppb)NC2LGWQS = North Carolina 2L Groundwater Quality Standard NA = Not Analyzed for This CompoundGCL = Gross Contamination Level J-Value = Estimated value between laboratory reporting limit and method detection limit NA-FP= Not sampled; Free Product Value exceeds NC2LGWQS = BOLDNA = Not Sampled Value exceeds GCL = BOLD NC2LGWQS MW-6 GCLMW-2/RW-2 MW-3/RW-3 MW-4/RW-4 MW-5 MW-8 MW-7 NC2LGWQS GCLRW-5 Jerry's Place State Road, Surry County, North Carolina NCDEQ Incident # 9547 ECS Project 49-6166 TABLE 3: SUMMARY OF WATER SUPPLY WELL ANALYTICAL RESULTS Sample Identification Sample Date 10/7/2009 4/22/2010 10/25/2010 5/9/2011 9/13/2011 6/27/2014 10/7/2009 4/22/2010 10/25/2010 5/9/2011 9/13/2011 6/27/2014 10/7/2009 4/22/2010 10/25/2010 5/9/2011 9/13/2011 6/27/2014 Acetone NS <10 NS NS NS NS NS <10 <10 <10 <1.5 <25 NS <10 <10 <10 <1.5 <25 6,000 6,000,000 Benzene NS <0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <.054 <0.5 NS <0.5 <0.5 <0.5 <.054 <0.5 1 5,000n-Butylbenzene NS <1 NS NS NS NS NS <1 <1 <1 <.059 <0.5 NS <1 <1 <1 <.059 <0.5 70 6,900 tert-Butylbenzene NS <0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <.11 <5 NS <0.5 <0.5 <0.5 <.11 <5 70 15,000TolueneNS<0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <0.057 <5 NS <0.5 <0.5 <0.5 <0.057 <5 600 260,000 Isopropyl ether NS <0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <.41 <0.5 NS <0.5 <0.5 <0.5 <.41 <0.5 70 70,000 n-Propylbenzene NS NA NS NS NS NS NS NA NA NA <.059 <0.5 NS NA NA NA <.059 <0.5 70 30,000 Ethylbenzene NS <0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <.054 <1 NS <0.5 <0.5 <0.5 <.054 <1 600 84,500 Isopropyl benzene NS <0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <.034 <0.5 NS <0.5 <0.5 <0.5 <.034 <0.5 70 25,000Methyl Tert Butyl Ether NS <0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <.056 <0.5 NS <0.5 <0.5 <0.5 <.056 <0.5 20 20,000 Naphthalene NS <1 NS NS NS NS NS <1 <1 <1 <.094 <0.5 NS <1 <1 <1 <.094 <0.5 6 6,000Methyl ethyl ketone NS <5 NS NS NS NS NS <5 <5 <5 <.83 <0.5 NS <5 <5 <5 <.83 <0.5 4,000 4,000,000 2-Hexanone NS <5 NS NS NS NS NS <5 <5 <5 <.11 <5 NS <5 NA NA <.11 <5 280 280,000 p-Isopropyltoluene NS <0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <.059 <0.5 NS <0.5 <0.5 <0.5 <.059 <0.5 25 11,700 sec-Butylbenzene NS <0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <.054 <0.5 NS <0.5 <0.5 <0.5 <.054 <0.5 70 8,500 Xylenes (total)NS <1 NS NS NS NS NS <1 <1 <1 <.11 <0.5 NS <1 <1 <1 <.11 <0.5 500 85,500 1,2,4-Trimethylbenzene NS <0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <.038 <0.5 NS <0.5 <0.5 <0.5 <.038 <0.5 400 28,500 1,3,5-Trimethylbenzene NS <0.5 NS NS NS NS NS <0.5 <0.5 <0.5 <.038 <0.5 NS <0.5 <0.5 <0.5 <.038 <0.5 400 25,500 Sample Identification Sample Date 10/7/2009 4/22/2010 10/25/2010 5/9/2011 9/13/2011 6/27/2014 10/7/2009 4/22/2010 10/25/2010 5/9/2011 6/27/2014 9/22/2015 2/20/2018 10/7/2009 4/22/2010 10/25/2010 5/9/2011 9/13/2011 6/27/2014AcetoneNS<10 <10 <10 <1.5 <25 <10 <10 210 <10 <10 <25 <25 NS <10 NS NS NS NS 6,000 6,000,000 Benzene NS <0.5 <0.5 <0.5 <.054 <0.5 2.5 <0.5 <0.5 0.58 <0.5 <0.5 <0.5 NS <0.5 NS NS NS NS 1 5,000 n-Butylbenzene NS <1 <1 <1 <.059 <0.5 1.4 <1 <1 <1 <1 <0.5 <0.5 NS <1 NS NS NS NS 70 6,900 tert-Butylbenzene NS <0.5 <0.5 <0.5 <.11 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 NS NS NS NS 70 15,000 Toluene NS <0.5 <0.5 <0.5 <0.057 <5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 NS NS NS NS 600 260,000 Isopropyl ether NS <0.5 <0.5 <0.5 <.41 <0.5 0.6 <0.5 0.84 0.53 <0.5 <0.5 <0.5 NS <0.5 NS NS NS NS 70 70,000 n-Propylbenzene NS NA NA NA <.059 <0.5 NA NA NA NA NA <0.5 <0.5 NS NS NS NS NS NS 70 30,000EthylbenzeneNS<0.5 <0.5 <0.5 <.054 <1 1.2 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 NS NS NS NS 600 84,500 Isopropyl benzene NS <0.5 <0.5 <0.5 <.034 <0.5 0.66 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 NS NS NS NS 70 25,000Methyl Tert Butyl Ether NS <0.5 <0.5 <0.5 <.056 <0.5 5 2.9 11 7.4 1.73 2.6 1.2 NS <0.5 NS NS NS NS 20 20,000 Naphthalene NS <1 <1 <1 <.094 <0.5 5 <1 <1 <1 <1 <0.5 <0.5 NS <1 NS NS NS NS 6 6,000 Methyl ethyl ketone NS <5 <5 <5 <.83 <0.5 <5 <5 220 <5 <5 <0.5 <0.5 NS <5 NS NS NS NS 4,000 4,000,000 2-Hexanone NS <5 NA NA <.11 <5 NA <.11 <.11 <.11 <5 <0.5 <0.5 NS <5 NS NS NS NS 280 280,000 p-Isopropyltoluene NS <0.5 <0.5 <0.5 <.059 <0.5 1 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 NS NS NS NS 25 11,700 sec-Butylbenzene NS <0.5 <0.5 <0.5 <.054 <0.5 1 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 NS NS NS NS 70 8,500 Xylenes (total)NS <1 <1 <1 <.11 <0.5 15.5 <1 <1 <1 <1 <1 <1 NS <1 NS NS NS NS 500 85,5001,2,4-Trimethylbenzene NS <0.5 <0.5 <0.5 <.038 <0.5 14 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 NS NS NS NS 400 28,500 1,3,5-Trimethylbenzene NS <0.5 <0.5 <0.5 <.038 <0.5 2.4 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NS <0.5 NS NS NS NS 400 25,500 Notes:Results are in ug/L or parts per billion (ppb)NC2LGWQS = North Carolina 2L Groundwater Quality Standard NA = Not Analyzed for This Compound GCL = Gross Contaminant Level µg/l = micrograms per liter = ppb (parts per billion) NS-FP= Not sampled; Free Product J-Value = Estimated value between laboratory reporting limit and method detection limit BQL-Below Quanitation limit Value exceeds NC2LGWQS = BOLDNS = Not Sampled Value exceeds GCL = BOLD NC2LGWQS NC2LGWQSWSW-2 WSW-4 GCLWSW-3 WSW-6 WSW-5 WSW-13 GCL Jerry's Place State Road, Surry County, North Carolina NCDEQ Incident # 9547 ECS Project 49-6166 SAMPLE ID MW-2 MW-3 MW-4 MW-5 pH 5.65 5.71 6.13 7.67 Temperature (oC)17.27 17.18 17.21 18.34 Conductivity (mS/cm)0.209 0.174 0.079 0.091 Dissolved O2 (mg/l)5.87 4.29 4.32 4.27 Turbidity (Observed)NT ST VT NT NOTES: TOC = top of casing NT= Not Turbid mS/cm = milliseimens per centimVT= Very Turbid mV = millivolts ST= Slightly Turbid °C = degress Celsius NA= Not Analyzed (meter failure) TABLE 4: GEOCHEMICAL MEASUREMENTS Date Sampled 2/20/2018 APPENDIX A APPENDIX B APPENDIX C Jerry’s Place NCDEQ Incident #9547 State Road, Surry County, North Carolina ECS Project No. 49:6166 ECS Southeast, LLP Page 1 Photo 1: View of active automotive repair and painting facility onsite. Photo 2: View of four inch monitoring well and vault (MW-4). Jerry’s Place NCDEQ Incident #9547 State Road, Surry County, North Carolina ECS Project No. 49:6166 ECS Southeast, LLP Page 2 Photo 3: View of MW-2, MW-3 locations, looking north. Photo 4: View of car dealership onsite.