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HomeMy WebLinkAboutMO-6441_24412_CA_MRP_20231101GROUNDWATER SAMPLING REPORT Hot Spot #6006 5710 South Main Street Salisbury, NC Rowan County Incident#: 24412 Facility ID #:24412 PREPARED FOR: RL JORDAN OIL COMPANY OF NC PO BOX 2527 SPARTANBURG, SOUTH CAROLINA PREPARED BY: Jason A. Terry, P.G. President Registered, NC #1746 November 2023 Semi-Annual Sampling Report i 11/1/2023 Groundwater Sampling Report A. Site Information 1. Site Identification Date of Report: November 1, 2023 Site Risk: H685D Facility I.D.: 24412 UST Incident Number (if known): 24412 Site Name: Former Hot Spot #6006 Site Street Address: 5710 South Main Street City/Town: Salisbury, North Carolina Zip Code:28147 County: Rowan Description of Geographical Data Point (e.g., diesel fill port): Dispensers (#5/#6) Location Method (GPS, topographical map, other): Google Earth Latitude (decimal degrees): 35.604115 N Longitude (decimal degrees): 80.541342 W 2. Information about Contacts Associated with the Leaking UST System  UST Owner: R.L. Jordan Oil Company Email: tknox@rljoc.com Address: PO Box 2527, Spartanburg, SC 29304 Tel.: 864-585-2784 UST Operator: R.L. Jordan Oil Company Email: tknox@rljoc.com Address: PO Box 2527, Spartanburg, SC 29304 Tel.: 864-585-2784 Property Owner: RLJOC Holdings Co., LLC Email: csuttles@rljoc.com Address: PO Box 2527, Spartanburg, SC 29304 Tel.: 864-585-2784 Property Occupant: Independent Gasoline Station Email: Unknown Address: 5710 South Main Street, Salisbury, NC 28147 Tel: 828-837-6839 Consultant/Contractor: Terry Environmental Services of NC Email: jterry@terryenvironmental.com Address: PO Box 25, Summerville, SC 29484 Tel: 843-873-8200 Analytical Laboratory: Pace Analytical Services, LLC Address: 106 Vantage Point Dr West Columbia, SC 29172 Tel: 803-791-9700 3. Information about Release  Date Discovered: May 6, 2002 Estimated Quantity of Release: Unknown Cause of Release: Unknown Source of Release (Dispenser/Piping/UST): Unknown Sizes and contents of UST system(s) from which the release occurred: Former USTs Removed Semi-Annual Sampling Report ii 11/1/2023 Executive Summary 1) The former Hot Spot #6006 site is a rebranded, active, retail gasoline station and convenience store near Salisbury, North Carolina. The site is surrounded by a mixture of residential and commercial properties. A site map is included as Figure 2, Section J. An AS/SVE system at the site had to be taken offline as it had “outlived” the manufacture’s intended lifespan. In prior correspondence the RP has requested that the antiquated AS/SVE infrastructure be removed from the site and NCDEQ representatives concurred. The demobilization of the former remediation system is completed. 2) Pursuant to the current Task Authorization only a select grouping of monitoring wells associated with the subject site were included in the sampling protocol during this scope of work. Samples were collected on October 5, 2023. 3) No free product has been detected at the subject site in 17 years. 4) MW-18 remains damaged and obstructed below grade due horizontal boring for new utilities in the area. 5) DMW-2R was sampled in lieu of DMW-2A. 6) Comparison of the current sampling event to prior analytical data for the site suggests that overall contaminant trends appear stable spatially and in mass. 7) Sampling for Natural Attenuation parameters was suspended as no definitive indication supporting natural attenuation was observed from evaluating the data. Current and historical field measurements for dissolved oxygen indicate that aerobic degradation may be occurring along the perimeter of the contaminant plume. 8) The overall reduction of the plume’s mass is most likely due to the removal of residual LNAPL from the unsaturated and smear zones. The Soil Vapor Extraction (SVE) system at the subject site operated on a near continuous basis for an extended amount of time and appears to have been successful in stripping petroleum constituents from the vadose zone in the former source area(s). 9) Though there are potential receptors in somewhat close proximity to the plume, none are deemed to be in imminent risk given the site-specific data. Semi-Annual Sampling Report iii 11/1/2023 C. Table of Contents SECTION DESCRIPTION PAGE A SITE INFORMATION i B EXECUTIVE SUMMARY ii C TABLE OF CONTENTS iii D SITE HISTORY AND CHARACTERIZATION 1 E PRESENTATION OF CURRENT SITE ASSESSMENT INFORMATION/COMPARISON TO HISTORICAL ASSESSMENT INFORMATION 1 F FREE PRODUCT REMOVAL 2 G MONITORED ATURAL ATTENTUATION 2 H CONCLUSIONS 2 I STATEMENTS AND CERTIFICATION 3 J FIGURES 4 K TABLES 5 LIST OF FIGURES DESCRIPTION FIGURE SITE LOCATION MAP (USGS) 1 SITE BASE MAP 2 GEOLOGIC CROSS SECTIONS MAP 3 GROUNDWATER ELEVATIONS MAP 4 GROUNDWATER A D SURFACE WATER ANALYTICAL MAP 5 ISOCONCENTRATION CONTOUR MAP (BENZENE) 6A ISOCONCENTRATION CONTOUR MAP (TOLUENE) 6B ISOCONCENTRATION CO TOUR MAP (ETHYLBENZENE) 6C ISOCONCENTRATION CONTOUR MAP (XYLENES, TOTAL) 6D ISOCONCENTRATION CONTOUR MAP (METHYL TERTIARY BUTYL ETHER) 6E ISOCONCENTRATION CO TOUR MAP (APHTHALENE) 6F FREE PRODUCT MAP 7 1,500 FOOT RADIUS RECEPTOR MAP 8 LIST OF TABLES DESCRIPTION TABLE SITE HISTORY-UST SYSTEM AND OTHER RELEASE INFORMATION B-1 SITE HISTORY-UST OWNER/OPERATER AND OTHER RESPONSIBLE PARTY INFORMATION B-2 SUMMARY OF SOIL SAMPLING RESULTS B-3 SUMMARY OF GROUNDWATER AND SURFACE WATER SAMPLING RESULTS B-4 ATURAL ATTENUATION ANALYTICAL RESULTS B-4A PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION B-5 PROPERTY OWNERS/OCCUPANTS B-6 MONITORING AND REMEDIATION WELL CONSTRUCTION INFORMATION B-7 FREE PRODUCT RECOVERY I FORMATION B-8A CUMULATIVE VOLUME OF FREE PRODUCT RECOVERED FROM SITE B-8B CURRENT AND HISTORICAL GROU DWATER ELEVATIONS AND FREE PRODUCT THICKNESS B-9 SUMMARY OF SOIL GAS AND/OR VAPOR SAMPLING RESULTS B-11 INITIAL, HISTORIC, AND CURRENT CONTAMINANT MASS ESTIMATES AND CALCULATED MASS REMOVAL RATES, TABULATED TO DEPICT THE RATE OF REMOVAL OVER TIME WITH GRAPHS B-12 Semi-Annual Sampling Report iv 11/1/2023 LIST OF APPENDICES DESCRIPTION APPENDIX GEOLOGIC BORING LOGS A COPIES OF NORR, NOV, ETC. B NATURAL ATTENUATION PARAMETERS C REMEDIAL SYSTEM PERFORMANCE TABLES AND GRAPHS D CONTAMINANT MASS VS. TIME GRAPHS E COMPILATION OF COSTS FOR PERFORMANCE OF REMEDIAL PLAN F CHRONOLOGY OF REMEDIATION ACTIVITIES G PROPOSED REMEDIATION SCHEDULE H LABORATORY ANALYTICAL REPORTS, COC, FIELD DATA SHEETS I GROUNDWATER MODELING AND/OR OTHER CALCULATIONS J Semi-Annual Sampling Report 1 11/1/2023 D. Site History and Characterization The Former Hot Spot #6006 site is located at 5710 South Main Street, Salisbury, North Carolina (Figure 1, Section J). The site is a rebranded, active retail gasoline station and convenience store. The site is bordered by Main Street to the west, commercial properties to the north and south, and the North Carolina Rail Commission tracks to the east. A site map is included as Figure 2, Section J. Site-specific stratigraphy generally consists of silty clays. Bedrock was not encountered during the drilling activities. Based on groundwater measurements taken relative to top of casing (TOC), depth to groundwater on site varies little and the site appears to straddle a topographic high (Table B-9, Section K). The Groundwater Contour Map (Figure 4, Section J) indicates that groundwater flow at the subject site is generally to the east. An Air Sparge (AS) and Soil Vapor Extraction (SVE) system was installed between May and June 2007 and the SVE system was operated briefly between July 16 and July 31, 2007, by the previous environmental consultant. On July 30, 2015, during a scheduled O&M visit, the power pole onsite was leaning severely and was deemed to be a safety hazard. Technicians from Duke Energy shut off power to the leaning pole as a safety precaution. On November 18 and 19, 2015, during a scheduled sampling event, the power pole had completely failed and was lying on the ground. Technicians from Duke Energy dismantled the power lines and took possession of the power meter. The use of an SVE/AS system was discontinued at this time. The closest receptor is the decommissioned water supply well, SW-1, located at the site. The closest operational water supply well, down gradient SW-28, is approximately 850 ft away to the south-southeast. Municipal water is available in this area. The contaminant plume is showing signs of reduction in terms of mass and appears to have stabilized spatially. E. Current Site Assessment and Groundwater Sampling Event On October 5, 2023, prior to the sampling event, the select grouping of monitoring wells listed on the Task Authorization #45 were gauged with an oil/water interface probe to determine depth to groundwater measurements and the presence or absence of free product. As previously reported, MW-18 remains damaged below grade by horizontal boring for new utilities in the area. The well is obstructed at approximately 7 feet below ground surface. Based on correspondence with NCDEQ in June 2022, DMW-2R was sampled in lieu DMW-2A. No product was detected in the wells. All wells were purged 3-casing volumes prior to sample collection. Samples were collected using a bailer. Groundwater Sampling Logs are provided in Appendix I. Groundwater table elevations have decreased by an average of seven feet in comparison to the measurements taken in May 2023. Once collected, samples were immediately placed on ice in a cooler. Groundwater samples were submitted for laboratory analyses according to TA #45 guidelines. Sample collection time, date, and method of analysis information is provided in the Groundwater Analytical Data and respective Chain of Custody in Appendix I. A summary of the detected compounds from the groundwater analytical report is provided as Table B-4 in Section K. In wells where higher levels of contaminants were present, the contaminant levels remained relatively stable from the previous analyses. A Groundwater Analytical Map is provided as Figure 5 in Section J. Groundwater Analytical Data and Chain of Custody form are provided in Appendix I. The highest overall level of groundwater contamination is present in MW-14 which is assumed to be near a source area. Semi-Annual Sampling Report 2 11/1/2023 The site is located in Salisbury which is located near the transition between the Western and Central Piedmont Provinces of North Carolina which is also known as the Kings Mountain Sheer Zone. The regional geology of the western piedmont is comprised of the Inner Piedmont block, the Smith River allochthon, and the Sauratwon Mountain window. The Inner Piedmont block encompasses the Inner Piedmont belt and the Chauga belt and consists of a composite stack of thrust sheets containing a variety of gneisses, schists, amphibolites, sparse ultramafic bodies, and intrusive granitoids. The central piedmont in North Carolina includes the Carolina Slate Belt, the Charlotte Belt, the Kings Mountain Belt, and the Milton Belt. The site is located in the Charlotte Belt which is predominantly plutonic with compositions ranging from granite to gabbro. Intrusive rocks comprise most of the belt in the type area which is the segment around Charlotte. The Clover Pluton is included in the type section and is identified as a coarse-grained granite. The structure of the Charlotte Belt is difficult to determine due to the abundance of post-deformational plutons. (Geology of the Carolinas, Horton & Zullo, 1991) In the Blue Ridge and Piedmont, the clayey, weathered-bedrock mantle accepts and yields water slowly but stores most of the two provinces’ groundwater. Shallow, bored wells commonly pump water from the contact zone between the weathered mantle and the bedrock, yielding about 5 gpm (gallons per minute), and are the most vulnerable to drought. Wells drilled into the bedrock obtain water from fractures connected to the weathered- bedrock mantle average about 300 feet in depth, and commonly yield about 20 gpm. (South Carolina State Water Assessment, Second Edition Wachob, Park, & Newcome, 2009) F. Free Product Removal Free product was not detected in any of the monitoring wells during this scope of work and has not been detected at the subject site since 2006. Sampling Logs are provided in Appendix I. Current and Historical Groundwater Elevations are provided in Table B-9, Section K. G. Monitored Natural Attenuation Sampling for Natural Attenuation parameters was suspended as no discernable trends were recognized while evaluating the data sets. Current and historical field measurements for dissolved oxygen indicate that aerobic conditions are present site wide. At present, given site specific data, monitored natural attenuation should be considered as a viable remediation technique. H. Conclusions Compared to the previous sampling event in the Spring of 2023 water table elevations have decreased by an average of seven feet. Historically, the surficial aquifer fluctuates seasonally and the site straddles a topographic high. The contaminant plume appears to have stabilized in mass. This stabilization may be attributed to the removal of residual LNAPL from the vadose zone and hence eliminating the source of the dissolved phase. It is also inferred that aerobic microbial activity is aiding in the reduction of the contaminants at the subject site. This is evidenced by dissolved oxygen levels that are decreased in wells where contamination is present (MW-14) when compared to background levels in clean wells (MW-17). Though there are potential receptors in somewhat close proximity to the plume, none are deemed to be in imminent risk given the site-specific data. Trends in the analytical data indicate that Monitored Natural Attenuation may be an acceptable remediation technique now that the plume is further defined and shows signs of a decreasing mass. Continued semi-annual sampling is recommended. Semi-Annual Sampling Report 3 11/1/2023 I. Statements and Certification 1 Enter the date the monitoring report was due November 2023. Will this report be submitted after the established due date? YES NO X 2 Was an required information from the above template missin from this report? YES NO X IF the answer to question #1 or# 2 is “YES”, please provide additional information in this cell to explain what was missing and why. 3 If applicable, will an o the proposed attenuation milestones under the schedule approved in the Corrective Action Plan not be met? (within a reasonable margin of error) YES NO X IF the answer to question #3 is “NO”, skip to the certification under #8 below. IF the answer to question #3 is “YES”, please generally describe in this cell the possible reason(s) and outline proposed remedies. (This should be described in more detail in the report text above.) 4 Does an known or suspected source zone soil contamination or free product remain outside of the assessed area that could be inhibiting natural attenuation? YES NO X 5 Has there been an unexpected increase in contaminant mass sufficient to su est a potential new release from a separate onsite or offsite source? YES NO X IF the answer to either question #4 or #5 is “YES”, generally describe in this cell any actions recommended to further assess or clean up this known or suspected source. (This should be described in more detail in the report text above.) 6 Certification: I, Jason A. Terry, a Professional Geologist for Terry Environmental Services of NC, do certify that the information contained in this report is correct and accurate to the best of my knowledge. Terry Environmental Services of NC is licensed to practice Geology in North Carolina. The certification number of the company or corporation is C-455. Semi-Annual Sampling Report 4 11/1/2023 J. Figures 1. Topographic Map Figure 1 Site Location (USGS) 2. Site Base Map Figure 2 Site Map 3. Geologic Cross-Sections Map N/A 4. Groundwater Elevations Map Figure 4 Groundwater Elevations Map 5. Groundwater and Surface Water Analytical Results Map Figure 5 Groundwater Analytical Map 6. Individual Groundwater Contaminant Isoconcentration Contour Maps N/A 7. Free Product Map N/A 8. Potential Receptor Map Figure 8 1,500 Foot Radius Receptor Map TERRY Project No. SCALE: SIZE DWG NO. DATE: REV PO Box 25 Summerville, South Carolina 29484 (800) 325-0605 (843)-873-8200 fax: (843)-873-8765 FIGURE 1 SITE LOCATION (USGS) NOT TO SCALE November 2023 2230.26B Figure 1 Site Location HOT SPOT #6006 5710 SOUTH MAIN STREET SALISBURY, NORTH CAROLINA MW-5 CONC.BASE MW-2 MW-8R MW-1 DMW-4R MW-7 MW-9 DMW-2R MW-3R DMW-2A MW-4 MW-11 MW-10 MW-12R SOUTH MAIN STREET (U.S. HIGHWAY 29) ASPHALT GRAVEL GRASS GRASS ASPHALT CUR R E N T REMEDIATION COMPOUND VE-1 VE-2VE-4 VE-3 VE-6 VE-5 AS-6 AS-7 AS-3 AS-1 AS-4 /AS-5 DMW-1/AS-2 (ABANDONED) 1" = 30 ft. CANOPY RESIDENTIALRESIDENTIAL PP PP PP PP MW-14 MW-13 DESTROYED MW-15 MW-16 MI D W A Y D R I V E MW-18MW-17 FORMER LOCATION OF TERRY PROJECT # SCALE DATE NC DENR INCIDENT # FIGURE 2 SITE MAP HOT SPOT #6006 5710 South Main Street Salisbury, NC 2230.26 1" = 30' 24412 LEGEND & ABBREVIATIONS: = MONITORING WELL (MW) = DEEP MONITORING WELL (DMW) = SOIL VAPOR EXTRACTION WELL (VE) = AIR SPARGE WELL (AS) = APPROXIMATE PIPING/TRENCHING LOCATIONS NOTE: SITE MAP IS BASED ON TRENCHING AND PIPING LAYOUT MAP PROVIDED BY S&ME NOTE: AS/SVE HAS EXCEEDED LIFE SPAN & IS NOT IN SERVICE November 2023 MW-5 CONC.BASE MW-2 MW-8R MW-1 DMW-4R MW-7 MW-9 DMW-2R MW-3R DMW-2A MW-4 MW-11 MW-10 MW-12R SOUTH MAIN STREET (U.S. HIGHWAY 29) ASPHALT GRAVEL GRASS GRASS ASPHALT CUR R E N T REMEDIATION COMPOUND VE-1 VE-2VE-4 VE-3 VE-6 VE-5 AS-6 AS-7 AS-3 AS-1 AS-4 /AS-5 DMW-1/AS-2 (ABANDONED) 1" = 30 ft. CANOPY RESIDENTIALRESIDENTIAL PP PP PP PP MW-14 MW-13 DESTROYED MW-15 MW-16 MI D W A Y D R I V E MW-18MW-17 FORMER LOCATION OF TERRY PROJECT # SCALE DATE NC DENR INCIDENT # FIGURE 2A SITE MAP HOT SPOT #6006 5710 South Main Street Salisbury, NC October 2023 2230.26 1" = 30' 24412 LEGEND & ABBREVIATIONS: = MONITORING WELL (MW) (DMW) = SOIL VAPOR EXTRACTION WELL (VE) = AIR SPARGE WELL (AS) = APPROXIMATE PIPING/TRENCHINGLOCATIONS NOTE: SITE MAP IS BASED ON TRENCHING AND PIPING LAYOUT MAP PROVIDED BY S&ME = MONITORING WELL SAMPLED (APRIL 2022) CANOPY HOT SPOT #6006UST BAS I N EXISTING CONCRETE SLAB EXISTING METAL SHED GRAPHIC SCALE 030 30 60 9015 MW-5 CONC.BASE MW-2 MW-8R MW-1 DMW-4R MW-7 MW-9 DMW-2R MW-3R DMW-2A MW-4 MW-11 MW-10 MW-12R SOUTH MAIN STREET (U.S. HIGHWAY 29) ASPHALT GRAVEL GRASS GRASS ASPHALT CUR R E N T REMEDIATION COMPOUND VE-1 VE-2VE-4 VE-3 VE-6 VE-5 AS-6 AS-7 AS-3 AS-1 AS-4 /AS-5 DMW-1/AS-2 (ABANDONED) 1" = 30 ft. CANOPY RESIDENTIALRESIDENTIAL PP PP PP PP MW-14 MW-13 DESTROYED MW-15 MW-16 MI D W A Y D R I V E MW-18MW-17 FORMER LOCATION OF OBSTRUCTED NM NM NM NM NM 73.75 74.50 75.25 75.31 73.45 74.76 72.37 75.12 75.60 75.66 75.76 75.43 TERRY PROJECT # SCALE DATE NC DENR INCIDENT # HOT SPOT #6006 5710 South Main Street Salisbury, NC November 2023 2230.26 1" = 30' 24412 LEGEND & ABBREVIATIONS: = MONITORING WELL (MW) = DEEP MONITORING WELL (DMW) = SOIL VAPOR EXTRACTION WELL (VE) = AIR SPARGE WELL (AS) = APPROXIMATE PIPING/TRENCHING LOCATIONS NOTE: SITE MAP IS BASED ON TRENCHING AND PIPING LAYOUT MAP PROVIDED BY S&ME FIGURE 4 GROUNDWATER ELEVATIONS MAP 74.50 75.31 GROUNDWATER ELEVATION GROUNDWATER CONTOUR (RELATIVE TO ASSUMED DATUM) GROUNDWATER FLOW DIRECTION MEASUREMENTS COLLECTED ON OCTOBER 5, 2023 NM= NOT MEASURED CANOPY HOT SPOT #6006UST BAS I N EXISTING CONCRETE SLAB EXISTING METAL SHED GRAPHIC SCALE 030 30 60 9015 MW-5 CONC.BASE MW-2 MW-8R MW-1 DMW-4R MW-7 MW-9 DMW-2R MW-3R DMW-2A MW-4 MW-11 MW-10 MW-12R SOUTH MAIN STREET (U.S. HIGHWAY 29) ASPHALT GRAVEL GRASS ASPHALT CUR R E N T VE-1 VE-2 VE-4 VE-3 VE-6 VE-5 AS-6 AS-7 AS-3 AS-1 AS-4 /AS-5 DMW-1 (ABANDONED) 1" = 30 ft. CANOPY RESIDENTIAL PP PP PP PP MW-14 MW-13 DESTROYED MW-15 MW-16 MI D W A Y D R I V E MW-18MW-17 MW-16 B 122 T 49.6 E 698 X 1,450 N 545 MTBE 111 EDB <5.0 IPE 2.4J MW-13 B 221 T 1,800 E 2,560 X 12,800 N 1,170 MTBE 406 EDB <50.0 IPE <50.0 MW-15 B 97.0 T 126 E 1,040 X 2,810 N 751 MTBE 360 EDB <10.0 IPE 3.1J MW-14 B 2,260 T 35,400 E 3,640 X 20,000 N 898 MTBE 5,060 EDB <200 IPE 57.6J MW-2 B 612 T 36.1J E 120 X 2,650 N 540 MTBE 7,210 EDB <50.0 IPE 68.2 DMW-4R B 5.6 T 0.45J E <1.0 X 0.75J N 0.29J MTBE 3.6 EDB <1.0 IPE 0.17J MW-8R B 1.9J T 63.9 E 826 X 2,340 N 441 MTBE <10.0 EDB <10.0 IPE <10.0 GRASSMW-9 B 1.9J T 2.8J E 478 X 53.3 N 586 MTBE 1,790 EDB <12.5 IPE 3.2J DMW-1 B 2.7J T <25.0 E <25.0 X <50.0 N <50.0 MTBE 4,100 EDB <25.0 IPE 233 MW-3R B 110 T <25 E 16.4J X 10.3J N 51.4 MTBE 4,410 EDB <25.0 IPE 17.9J NS NS NS NS NS NS ND OBSTRUCTED REMEDIATION COMPOUND FORMER LOCATION OF DMW-2R B 0.10J T <1.0 E <1.0 X <2.0 N <2.0 MTBE 0.45J EDB <1.0 IPE <1.0 TERRY PROJECT # SCALE DATE NC DENR INCIDENT # HOT SPOT #6006 5710 South Main Street Salisbury, NC November 2023 2230.26 1" = 30' 24412 LEGEND & ABBREVIATIONS: = MONITORING WELL (MW) = DEEP MONITORING WELL (DMW) = SOIL VAPOR EXTRACTION WELL (VE) = AIR SPARGE WELL (AS) = APPROXIMATE PIPING/TRENCHING NOTE: SITE MAP IS BASED ON TRENCHING AND PIPING LAYOUT MAP PROVIDED BY S&ME FIGURE 5 GROUNDWATER ANALYTICAL MAP B = BENZENE T = TOLUENE E = ETHYLBENZENE X = XYLENES N = NAPHTHALENE MTBE = METHYL TERTIARY BUTYL ETHER INDICATES CONTAMINANTS ABOVE EDB = 1,2-DIBROMOETHANE IPE = DIISOPROPYL ETHER GROUNDWATER SAMPLES COLLECTED ON OCTOBER 5, 2023 ALL UNITS ARE UG/L RED 2L STANDARD NS = NOT SAMPLED ND= BELOW DETECTION LIMITS WSW = WATER SUPPLY WELL CNF= COULD NOT FIND-WELL NOT LOCATED 76 75 28 27 1 2 4 6 5 3 8 9 7 69 68 67 66 65 70 71 72 74 73 63 64 24 35 25 23 22 51 52 21 20 5450 19 46 47 41 18 53 17 14 15 16 56 55 29 90 87 88 89 39 31 91 44 42 45 49 82 86 84 48 38 30 83 85 81 40 37 36 80 43 33 11 34 13 12 10 32 62 61 60 5958 5778 79 77 26DEVELOPED LAND DEVELOPED LAND DEVELOPED LAND WOODEDAREA SITE WEBB R O A D ROSE M A N R O A D MIDWA Y D R I V E EAST O V E R D R I V E SO U T H M A I N S T R E E T BER T I E A V E N U E SW I N K A V E N U E ( IN FEET ) GRAPHIC SCALE 0250 250 500125 500' 1,000' 1,500' TERRY PROJECT # SCALE DATE NC DENR INCIDENT # FIGURE 8 1,500 FOOT RADIUS MAP HOT SPOT #6006 5710 South Main Street Salisbury, NC 2230.26 As Shown 24412 LEGEND & ABBREVIATIONS: = RADI FROM FORMER UST 500, = WATER SUPPLY WELL LOCATIONS 1000 AND 1500 FEET. 22 NOTE: MAP CREATED BASED ON S&ME WATER SUPPLY WELL MAP. November 2023 Semi-Annual Sampling Report 5 11/1/2023 K. Tables 1. Site History Table B-1 Site History – UST System and Other Release Information – N/A Table B-2 Site History – UST Owner/Operator and Other Responsible Party Information – N/A 2. Public and Private Water Supply Well and Other Receptor Information Table B-5 Public and Private Water Supply Well and Other Receptor Information Table B-6 Property Owners/Occupants – N/A 3. Summary of Soil Sampling Results Table B-3 Summary of Soil Sampling – N/A 4. Summary of Groundwater and Surface Water Sampling Results Table B-4 Summary of Groundwater Sampling Results Table B-4A Natural Attenuation Analytical Results – N/A 5. Summary of Soil Gas and/or Vapor Sampling Results Table B-11 Summary of Soil Gas and/or Vapor Sampling Results – N/A 6. Initial (i.e., CSA), historic and current contaminant mass estimates and calculated mass removal rates, tabulated to depict the rate of removal over time, with graphs per Appendix E Table B-12 Initial, historical, and current contaminant mass estimates, etc. – N/A 7. Monitoring and Remediation Well Construction Information Table B-7 Monitoring Well Construction Information – N/A 8. Free Product Recovery Information Table B-8A Free Product Recovery Information – N/A 9. Cumulative Volume of Free Product Recovered from Site Table B-8B Cumulative Volume of Free Product Recovered from Site – N/A 10. Current and Historical Groundwater Elevations and Free Product Thickness Table B-9 Current and Historical Groundwater Elevations and Free Product Thickness Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l 10/24/2002 11,000 35,000 3,300 12,000 330 ND 2.4 ND 11/18/2002 NS NS NS NS NS NS NS NS 4/14/2003 4,000 20,000 2,000 13,000 500 ND 0.51 ND 3/22/2006 60 2,100 1,100 4,600 260 37 <3.0 <4 2/28/2008 10,000 810 130 1,800 220 21,000 <1.0 440 5/29/2008 <1.0 6.2 11 210 13 <2.0 <1.0 <10 8/26/2008 22 400 380 5,100 230 6.1 <1.0 <10 11/26/2008 18 510 440 5,800 230 4.9 <1.0 <10 2/26/2009 <1.0 36 110 980 52 <2.0 <1.0 <10 7/7/2009 <1.0 8.1 14 290 10 2.6 <1.0 <10 12/16/2009 <1.0 15 46 350 19 <2.0 <1.0 <10 6/15/2010 15 76 190 1,640 55 110 <1.0 <10 12/16/2010 8.4 200 160 2,400 40 170 <5.0 <10 6/14/2011 19.4J 508 610 5,900 277 68.4 <20 <200 12/15/2011 0.276J 6.69 7.94 96.3 1.06J 107 <1 1.17J 6/14/2012 <0.50 4.5 12 480 15 38 <1.0 <5.0 12/13/2012 80.9 700 632 8,730 492 193 <25.0 12.1J 6/18/2013 <1.0 1.6 5.5 165 8.1 5.4 <1.0 <1.0 12/31/2013 <1.00 <1.00 <1.00 0.682J <2.00 <2.00 <1.00 <10.0 6/26/2014 <1.0 <1.0 2.9 42 1.8 0.41J <1.0 <1.0 12/30/2014 <10.0 <10.0 19.2 696 51.8 <10.0 <10.0 <10.0 5/13/2015 <1.0 <1.0 <1.0 5.0 <1.0 <1.0 <1.0 <1.0 11/18/2015 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 4/12/2016 6/14/2016 0.28J <1.0 <1.0 <1.0 0.38BJ <1.0 <1.0 <1.0 11/29/2016 5/11/2017 11/29/2017 0.54J 0.59J 10 370 44 <1.0 <1.0 <1.0 6/12/2018 <1.0 <1.0 <1.0 <1.0 0.43J 0.74J <1.0 <1.0 1/16/2019 4/22/2019 12/18/2019 5/20/2020 3/23/2021 9/29/2021 4/14/2022 10/17/2022 5/3/2023 10/5/2023 Not Sampled Not Sampled Not Sampled Not Sampled NC DENR INCIDENT # 24412 MW-1 Not Sampled Not Sampled TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 10/24/2002 NS NS NS NS NS NS NS NS 11/18/2002 4 3.5 2.1 17 ND ND ND ND 4/14/2003 3.3 7.1 ND 1.2 ND ND ND ND 3/22/2006 29 <0.17 0.52 46 13 <0.40 <0.30 <0.40 2/28/2008 440 14 8.2 90 36 43 <1.0 <10 5/29/2008 660 8.2 6.7 540 120 100 <1.0 12 8/26/2008 1,300 17 32.0 990 180 180 <1.0 18 11/26/2008 1,900 19 28.0 1,400 150 350 <1.0 34 2/27/2009 2,700 24 20 2,400 310 720 <1.0 44 7/8/2009 2,900 24 12 1,300 150 1,300 <1.0 33 12/16/2009 2,900 14 11 770 150 2,100 <1.0 78 6/15/2010 3,800 130 55 1,750 130 2,200 <1.0 82 12/16/2010 5,100 110 180 1,600 260 4,700 <250 <500 6/14/2011 4,710 114 113 1,092 244 5,960 <50 153J 12/15/2011 3,410 <100 102 531J 115J 5,930 <100 149J 6/14/2012 2,900 5.5J 34 270 120 8,800 <10 150 12/13/2012 3,230 <100 91.0J 657J 184J 6,000 <100 114J 6/18/2013 1,820 14.5 37.2 670 198 35,900 <1.0 914 12/31/2013 5,220 <200 105J 644J <400 10,500 <200 <2,000 6/26/2014 5,100 49J 110 2,200 330 13,000 <50 180 12/30/2014 4,720 66.5 147 4,290 501 10,000 <20.0 121 5/13/2015 3,600 56 120 3,700 340 8,800 <50 100 11/19/2015 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 4/12/2016 1,070 <50.0 <50.0 1,520 153 6,490 <50.0 71.2 6/14/2016 2,400 64J 74J 4,500 330B 9,100 <100 88J 11/30/2016 31 <5.0 2.5J 54 7.2 450 <5.0 3.8J 5/12/2017 3,700 100 220 7,100 590 15,000 <100 140 11/30/2017 2,800 79J 210 4,200 480 14,000 <100 120 6/12/2018 2,200 790 410 4,400 320 14,000 <200 130J 1/16/2019 2,000 <200 220 3,400 800 16,000 <200 <200 4/23/2019 2,000 <100 190 2,900 530 16,000 <100 140 12/19/2019 1,900 76J 250 5,800 710 14,000 <100 120 5/20/2020 2,000 170 330 4,200 660 16,000 <50 120 3/23/2021 890 66 170 4,500 550 12,000 <5.0 92 9/29/2021 850 89J 190 4,300 530 11,000 <100 74J 4/14/2022 780 49 140 4,000 620 9,800 <10 86 10/17/2022 841 <50.0 141 1,270 689 9,950 <50.0 92.5 5/3/2023 742 <50.0 67.2 2,130 514 9,040 <50.0 76.0 10/5/2023 612 36.1J 120 2,650 540 7,210 <50.0 68.2 MW-2 Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 10/24/2002 NS NS NS NS NS NS NS NS 11/18/2002 4,000 18,000 2,400 11,000 230 ND 6.9 ND 4/14/2003 5,000 20,000 2,000 10,000 400 ND 13 ND 6/29/2006 2/28/2008 540 8,500 1,200 17,000 1,000 4,200 <1.0 16 5/29/2008 8/26/2008 210 3,700 2,000 20,000 590 850 <1.0 <10 11/26/2008 160 2,900 2,200 19,000 690 260 <50 <500 2/26/2009 77 270 230 2,600 150 190 <1.0 <10 7/7/2009 280 270 46 800 20 640 <1.0 <10 12/16/2009 52 140 34 590 50 410 <1.0 <10 6/15/2010 280 280 77 3,400 110 120,000 <1.0 <10 12/16/2010 6/14/2011 <2,000 <2,000 <2,000 <20,000 <4,000 208,000 <2,000 <20,000 9/16/2011 <2,000 <2,000 <2,000 <20,000 <4,000 211,000 <2,000 <20,000 12/15/2011 <1,000 <1,000 <1,000 <10,000 <2,000 124,000 <1,000 <10,000 6/14/2012 <5.0 <10 <10 94 27J 23,000 <10 <50 12/13/2012 <1,000 <2,000 <2,000 <30,000 <10,000 101,000 <2,000 <10,000 6/18/2013 1.4 <1.0 <1.0 16.0 10.7 4,340 <1.0 <1.0 12/31/2013 <1.00 <1.00 <1.00 0.300J <2.00 81.5 <1.00 <10.0 6/26/2014 <200 <200 <200 160J 80J 4,700 <200 <200 12/29/2014 <10.0 <10.0 <10.0 67.8 99.9 5,110 <10.0 <10.0 5/13/2015 <5.0 <5.0 <5.0 1.9J 9.7 430 <5.0 <5.0 11/19/2015 <1.0 <1.0 <1.0 <1.0 <1.0 21 <1.0 <1.0 4/12/2016 6/14/2016 0.60J <1.0 <1.0 0.39J 1.5B 22 <1.0 <1.0 11/29/2016 5/11/2017 11/29/2017 <5.0 <5.0 <5.0 <5.0 28 660 <5.0 <5.0 6/11/2018 0.48J <1.0 <1.0 <1.0 <1.0 130 <1.0 <1.0 1/17/2019 <20 <20 <20 <20 <20 1,900 <20 <20 4/22/2019 2.4J <5.0 <5.0 6.3 5.8 770 <5.0 <5.0 12/18/2019 0.58J <1.0 <1.0 <1.0 0.63J 150 <1.0 0.66J 5/20/2020 5.6 0.41J 0.46J 7.6 3.8 1,200 <1.0 1.4 3/23/2021 2.2J <5.0 <5.0 11 3.5J 400 <5.0 <5.0 9/29/2021 360 24 58 660 210 37,000H <5.0 36 4/14/2022 54 1.9 3.8 70 38 5,800 <1.0 11 10/17/2022 171 <100 <100 226 235 10,900 <100 <100 5/3/2023 0.84J <1.0 <1.0 <2.0 <2.0 3.0 <1.0 6.3 10/5/2023 110 <25 16.4J 10.3J 51.4 4,410 <25 17.9J Well Not Located to Sample MW-3 Not Sampled Not Sampled; Free Product 0.01 feet MW-3R Not Sampled Not Sampled Dry Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 10/24/2002 NS NS NS NS NS NS NS NS 11/18/2002 5.7 6.1 86 400 19 ND ND ND 4/14/2003 ND 10 100 800 ND ND ND ND 6/29/2006 2/28/2008 140 47,000 2,000 15,000 420 <2.0 <1.0 <10 5/29/2008 160 16,000 1,400 12,000 1,300 330 <1.0 <10 8/26/2008 250 29,000 2,200 18,000 500 2,400 <1.0 20 11/26/2008 660 24,000 2,700 20,000 <1,000 1,900 <500 <5,000 2/26/2009 980 21,000 2,400 20,000 <1,000 1,000 <500 <5,000 7/7/2009 410 7,700 2,700 20,000 580 380 <100 <1,000 12/16/2009 630 6,900 1,900 23,000 620 420 <100 <1,000 6/15/2010 310 700 560 16,100 570 240 <100 <1,000 12/16/2010 140 75 49 4,200 58 210 <5.0 <10 6/14/2011 41.3J <50 <50 453J <100 4,680 <50 28.2J 12/15/2011 11.7J <20 <20 <200 <40 2,440 <20 13.0J 6/14/2012 <5.0 <10 <10 14J <50 9,000 <10 21J 12/13/2012 14.2 10.5J <20.0 <300 <100 1,460 14.2J <100 6/18/2013 1.2 <1.0 <1.0 15.8 2.0 6,940 <1.0 <1.0 12/31/2013 <25.0 <25.0 <25.0 16.3J <50.0 4,300 <25.0 <250 6/26/2014 <100 <100 <100 <100 310B 860 <100 <100 12/29/2014 12.9 6.2 <5.0 11.0 <10.0 534 <5.0 <5.0 5/13/2015 <5.0 <5.0 <5.0 3.9J <5.0 350 <5.0 <5.0 11/18/2015 0.21J <1.0 <1.0 8.8 5.7B 120 <1.0 <1.0 4/12/2016 6/14/2016 <1.0 <1.0 <1.0 2.2 1.0B 39 <1.0 <1.0 11/29/2016 <5.0 <5.0 <5.0 <5.0 <5.0 3.1J <5.0 <5.0 5/11/2017 11/29/2017 0.61J <1.0 <1.0 1.9 2.3 8.8 <1.0 <1.0 6/11/2018 <1.0 <1.0 <1.0 0.56J 0.83J 14 <1.0 <1.0 1/16/2019 4/22/2019 12/18/2019 5/20/2020 3/23/2021 9/29/2021 4/14/2022 10/17/2022 5/3/2023 10/5/2023 Well Not Located to Sample Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled MW-4 Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 10/24/2002 NS NS NS NS NS NS NS NS 11/18/2002 NS NS NS NS NS NS NS NS 4/14/2003 1.7 2.3 <1.7 2.2 ND ND ND ND 3/22/2006 16 2.1 1.1 4.0 2 <0.40 NS <0.40 3/14/2008 2.9 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 5/29/2008 4.1 8.4 1.5 8.7 8.1 <2.0 <1.0 <10 8/26/2008 5.9 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 11/26/2008 2.7 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 2/27/2009 10 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 7/8/2009 <1.0 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 12/16/2009 2.9 4.2 <1.0 <10 <2.0 <2.0 <1.0 <10 6/15/2010 1.4 <1.0 <1.0 <10 <2.0 <2.0 <1.0 <10 12/16/2010 9.6 <1.0 3.4 12 <5.0 <1.0 <5.0 <10 6/14/2011 4.56 <1 0.474J 7.46J <2 <2 <1 <10 12/15/2011 <1 <1 <1 1.04J <2 <2 <1 <10 6/14/2012 1.6 <1.0 <1.0 2.9J <5.0 <5.0 <1.0 <5.0 12/13/2012 1.27 <1.00 <1.00 1.39J <5.00 <5.00 <1.00 <5.00 6/18/2013 2.4 <1.0 <1.0 <2.0 <2.0 1.6 <1.0 <1.0 12/31/2013 NS NS NS NS NS NS NS NS 6/26/2014 0.63J <1.0 <1.0 <1.0 3.1B <1.0 <1.0 <1.0 12/30/2014 <1.0 <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.0 5/13/2015 0.35J <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 11/19/2015 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 4/12/2016 6/14/2016 <1.0 <1.0 <1.0 <1.0 0.35BJ <1.0 <1.0 <1.0 11/29/2016 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 5/11/2017 11/29/2017 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 6/12/2018 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1/16/2019 4/22/2019 12/18/2019 5/20/2020 3/23/2021 9/29/2021 4/14/2022 10/17/2022 5/3/2023 10/5/2023 10/24/2002 NS NS NS NS NS NS NS NS 11/18/2002 NS NS NS NS NS NS NS NS 4/14/2003 800 10,000 2,000 9,000 400 ND ND ND 8/11/2004 Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Well Destroyed Not Sampled MW-5 MW-6 Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 10/24/2002 NS NS NS NS NS NS NS NS 11/18/2002 NS NS NS NS NS NS NS NS 4/14/2003 10,000 20,000 2,000 11,000 500 ND 0.47 ND 8/8/2006 10/24/2002 NS NS NS NS NS NS NS NS 11/18/2002 NS NS NS NS NS NS NS NS 4/14/2003 8,000 40,000 2,000 12,000 500 ND ND ND 6/29/2006 17,000 26,000 2,900 12,800 680 610 <50 160 2/28/2008 19,000 60,000 4,200 20,000 950 920 <1.0 110 5/29/2008 8,800 30,000 2,900 15,000 340 850 <1.0 82 8/26/2008 14,000 48,000 3,000 16,000 <2.0 800 3.7 97 11/26/2008 11,000 45,000 3,500 16,000 <1,000 <1,000 <500 <5,000 2/27/2009 9,200 38,000 3,500 17,000 670 260 <100 <1,000 7/7/2009 4,600 28,000 2,100 11,000 570 <200 <100 <1,000 12/16/2009 3,100 32,000 2,400 12,300 <1,000 <1,000 <500 <5,000 6/15/2010 750 20,000 2,200 11,300 2,100 <1,000 <500 <5,000 12/16/2010 440 27,000 4,200 22,000 810 160 <250 <500 6/14/2011 303 17,800 1,920 12,530 846 165J <200 <2,000 12/15/2011 213 16,500 2,260 15,470 756 225 <100 <1,000 6/14/2012 210 8,500 2,000 14,000 760 180J <100 <500 12/13/2012 193 13,300 1,860 13,600 662J 368J <200 <1,000 6/18/2013 270 2,310 628 3,160 1,170 180 <1.0 4.1 12/31/2013 412 20,600 2,490 16,450 <500 220J <250 <2,500 6/26/2014 92 6,300 1,600 10,000 540 75 <50 <50 12/30/2014 124 4,230 1,190 7,540 622 40.5 <20.0 <20.0 5/13/2015 78 2,500 580 4,500 280 30 <20 <20 11/19/2015 230 12,000 2,200 15,000 630 49J <100 <100 4/12/2016 6/14/2016 5.5 33 66 810 64B 1.5J <5.0 <5.0 11/29/2016 29J 3,300 2,400 15,000 790 <50 <50 <50 5/11/2017 39J 2,400 1,100 5,700 360 <50 <50 <50 11/30/2017 31J 2,400 3,100 18,000 880 <50 <50 <50 6/12/2018 <100 2,500 2,700 16,000 590 <100 <100 <100 1/16/2019 <100 490 1,900 12,000 680B <100 <100 <100 4/22/2019 <50 290 1,300 8,100 580 <50 <50 <50 12/18/2019 <100 1,500 2,100 11,000 710 <100 <100 <100 5/21/2020 <100 470 2,000 13,000 630 <100 <100 <100 3/23/2021 <50 240 930 3,600 470 <50 <50 <50 9/29/2021 <20 62 1,000 3,600 470 <20 <20 <20 4/14/2022 <20 570 1,500 6,000 620 <20 <20 <20 10/17/2022 <10.0 82.9 1,150 3,160 534 <10.0 <10.0 <1.0 5/3/2023 <10.0 372 832 3,130 416 <10.0 <10.0 <10.0 10/5/2023 1.9J 63.9 826 2,340 441 <10.0 <10.0 <10.0 MW-8 Well Abandoned Due to Damage Below Grade MW-7 MW-8R Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 8/13/2003 5,400 23,000 1,800 10,500 340 ND 29 ND 6/29/2006 2/28/2008 1,600 7,900 520 14,000 1,500 170,000 <1.0 130 5/29/2008 2,600 18,000 2,600 22,000 1,500 63,000 <1.0 73 8/26/2008 15 240 130 2,000 190 94 <1.0 <10 11/26/2008 480 6,200 1,600 10,000 910 9,900 <10 <100 2/26/2009 250 250 65 860 110 5,600 <1.0 11 7/8/2009 2,100 4,800 230 3,200 520 20,000 <100 <1,000 12/16/2009 600 1,400 <500 <5,000 <1,000 8,400 <500 <5,000 6/15/2010 1.4 9.6 <1.0 18.3 <2.0 9.0 <1.0 <10 12/16/2010 6/14/2011 <5 69.5 <5 202.1 16.7 <10 <5 <50 12/15/2011 2.28J 6.92 9.06 96.2 14.8 476 <5 1.66J 6/14/2012 11 <10 5.1J 65 13J 7,400 <10 18J 12/13/2012 <50.0 <100 <100 172J <500 7,910 <100 <500 6/18/2013 19.6 12.3 28.2 229 38.0 7,740 <1.0 22.6 12/31/2013 <100 <100 <100 <1,000 <200 15,000 <100 <1,000 6/26/2014 0.68J 0.40J 2.5 11 10 160 <1.0 <1.0 12/29/2014 41.7 37.2 94.7 502 105 20,200 <10.0 29.2 5/13/2015 0.61J 4.2 0.93J 8.0 1.7 3.3 <1.0 <1.0 11/18/2015 0.78J 1.5 1.2 10 2.8 92 <1.0 <1.0 4/12/2016 6/14/2016 <100 <100 <100 <100 37BJ 9,800 <100 <100 11/29/2016 <200 <200 120J 580 150J 26,000 <200 <200 5/11/2017 <500 <500 <500 820 <500 27,000 <500 <500 11/29/2017 <200 <200 89J 680 100J 25,000 <200 <200 6/11/2018 <200 <200 <200 240 <200 17,000 <200 <200 1/16/2019 <200 81J 350 2,700 310B 15,000 <200 <200 4/22/2019 <100 <100 340 2,100 250 11,000 <100 <100 12/18/2019 <50 <50 650 4,500 500 9,700 <50 <50 5/20/2020 <20 71 640 3,400 440 8,000 <20 <20 3/23/2021 <100 <100 260 2,800 380 7,700 <100 <100 9/29/2021 <20 <20 970 1,200 620 3,300S <20 <20 4/14/2022 2.4J <5.0 400 51 440S 6,500 <5.0 7.8 10/17/2022 <12.5 <12.5 365 28.2 457 2,360 <12.5 4.2J 5/3/2023 <40.0 <40.0 231 411 523 5,120 <40.0 <40.0 10/5/2023 1.9J 2.8J 478 53.3 586 1,790 <12.5 3.2J Not Sampled MW-9 Dry Not Sampled; Free Product 1.3 feet Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 8/13/2003 ND ND ND ND ND ND ND ND 3/22/2006 7.1 14 3 42 2 4 <0.30 <0.40 2/28/2008 <1.0 1.5 <1.0 <5.0 <2.0 <2.0 <1.0 <10 5/29/2008 <1.0 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 8/26/2008 <1.0 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 11/26/2008 <1.0 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 2/27/2009 <1.0 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 7/8/2009 <1.0 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 12/16/2009 <1.0 <1.0 <1.0 <10 <2.0 <2.0 <1.0 <10 6/15/2010 <1.0 <1.0 <1.0 <10 <2.0 280 <1.0 <10 12/16/2010 6/14/2011 <1 <1 <1 <10 <2 83.8 <1 <10 12/15/2011 <1 <1 <1 <10 <2 43.7 <1 <10 6/14/2012 <0.50 <1.0 <1.0 <3.0 <5.0 22 <1.0 <5.0 12/13/2012 <0.500 <1.00 <1.00 <15.0 <5.00 2.77J <1.00 <5.00 6/18/2013 <1.0 <1.0 <1.0 <2.0 2.2 5.3 <1.0 <1.0 12/31/2013 <1.00 <1.00 <1.00 <10.0 <2.00 1.00J <1.00 <10.0 6/26/2014 <1.0 <1.0 <1.0 <1.0 <1.0 10 <1.0 <1.0 12/29/2014 Destroyed Dry MW-10 Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 8/13/2003 ND ND ND ND ND ND ND ND 3/22/2006 <1.3 <0.17 7 6 4 <0.40 <0.30 <0.40 2/28/2008 5/29/2008 5.1 35 140 350 75 <2.0 <1.0 <10 8/26/2008 29 180 760 2,900 260 <2.0 <1.0 <10 11/26/2008 17 80 590 1,900 190 <2.0 <1.0 <10 2/27/2009 5.2 11 81 130 30 <2.0 <1.0 <10 7/8/2009 11 36 160 550 59 <2.0 <1.0 <10 12/16/2009 16 16 120 350 55 2.9 <1.0 <10 6/15/2010 <1.0 <1.0 <1.0 <10 <2.0 7.0 <1.0 <10 12/16/2010 75 130 750 2,900 150 100 <5.0 <10 6/14/2011 59.2 74.9 575 1,207 102 134 <10 <100 12/15/2011 10.4 2.23 96.8 88.3 7.61 134 <1 2.48J 6/14/2012 <0.50 <1.0 <1.0 <3.0 <5.0 470 <1.0 2.9J 12/13/2012 14.4 <5.00 <5.00 7.81J <25.0 496 <5.00 5.12J 6/18/2013 <1.0 <1.0 <1.0 <2.0 <2.0 392 <1.0 2.8 12/31/2013 <2.00 <2.00 <2.00 <20.0 <4.00 288 <2.00 1.43J 6/26/2014 1.6J 3.3J 24 110 25 730 <5.0 <5.0 12/29/2014 <1.0 <1.0 1.2 8.2 3.3 143 <1.0 <1.0 5/13/2015 <1.0 <1.0 0.40J 4.2 0.58J 7.3 <1.0 <1.0 11/18/2015 <1.0 <1.0 <1.0 0.48J 0.24J 0.88J <1.0 <1.0 4/12/2016 6/14/2016 <1.0 <1.0 <1.0 0.52J 0.46BJ <1.0 <1.0 <1.0 11/29/2016 5/11/2017 11/29/2017 <1.0 <1.0 2.9 3.3 3.0 <1.0 <1.0 <1.0 6/11/2018 <1.0 <1.0 0.62J 1.2 0.54J <1.0 <1.0 <1.0 1/16/2019 4/22/2019 12/18/2019 5/20/2020 3/23/2021 9/29/2021 4/14/2022 10/17/2022 5/3/2023 10/5/2023 Not Sampled Not Sampled Not Sampled Not Sampled Well Not Located to Sample Not Sampled Not Sampled Not Sampled MW-11 Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA MW-12 8/13/2003 1,500 13,000 3,300 16,500 400 ND ND ND 3/22/2006 3,200 4,500 890 5,200 340 1,200 <6.0 39 2/28/2008 400 150 160 1,000 66 400 <1.0 <10 5/29/2008 230 32 61 330 56 180 <1.0 <10 8/26/2008 1,300 150 240 1,800 230 420 <1.0 12 11/26/2008 420 40 130 550 140 120 <1.0 <10 2/27/2009 40 3.1 8.2 130 32 33 <1.0 <10 7/8/2009 12 1.0 1.5 57 9.2 15 <1.0 <10 12/16/2009 18 1.0 1.2 104 22 24 <1.0 <10 6/15/2010 1.2 <1.0 <1.0 34 7.7 130 <1.0 <10 12/16/2010 20 13 21 1,300 130 96 <5.0 <10 6/14/2011 <10 <10 6.35J 255 53.8 29.7 <10 <100 12/15/2011 <1 <1 <1 <10 <2 4.32 <1 <10 6/14/2012 <0.50 <1.0 <1.0 <3.0 <5.0 4.7J <1.0 <5.0 12/13/2012 <0.500 <1.00 <1.00 <15.0 <5.00 5.44 <1.00 <5.00 6/18/2013 <1.0 <1.0 <1.0 <2.0 <2.0 1.5 <1.0 <1.0 12/31/2013 <1.00 <1.00 <1.00 <10.0 <2.00 0.652J <1.00 <10.0 6/26/2014 <1.0 <1.0 <1.0 <1.0 <1.0 0.55J <1.0 <1.0 12/29/2014 <1.0 <1.0 <1.0 <2.0 <2.0 1.1 <1.0 <1.0 5/13/2015 <1.0 <1.0 <1.0 <1.0 <1.0 0.51J <1.0 <1.0 11/18/2015 0.52J <1.0 <1.0 0.90J 0.36BJ 0.40J <1.0 <1.0 4/12/2016 6/14/2016 2.9 0.33J <1.0 2.2 <1.0 <1.0 <1.0 <1.0 11/29/2016 4.1J <5.0 <5.0 4.6J <5.0 <5.0 <5.0 <5.0 5/11/2017 11/29/2017 19 <1.0 <1.0 5.3 0.55J <1.0 <1.0 <1.0 6/11/2018 15 <1.0 <1.0 3.1 <1.0 <1.0 <1.0 <1.0 1/16/2019 4/22/2019 12/18/2019 5/20/2020 3/23/2021 9/29/2021 4/14/2022 10/17/2022 5/3/2023 10/5/2023 Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled MW-12R Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 5/13/2015 740 16,000 2,400 23,000 1,000 7,900 <200 <200 11/19/2015 1,100 17,000 2,600 20,000 880 11,000 <50 86 4/12/2016 6/14/2016 730 16,000 2,600 23,000 1,100B 5,000 <100 <100 11/30/2016 990 19,000 3,000 23,000 1,000 2,800 <100 <100 5/11/2017 770 15,000 2,500 21,000 1,100 2,900 <100 <100 11/30/2017 910 13,000 2,800 18,000 1,000 1,400 <100 <100 6/12/2018 630 11,000 1,900 15,000 700 1,300 <100 <100 1/16/2019 400 10,000 2,200 19,000 1,100B 780 <200 <200 4/23/2019 330 8,700 2,000 20,000 1,100 890 <100 <100 12/19/2019 430 9,700 2,700 21,000 1,100 390 <50 <50 5/20/2020 270 7,500 2,600 22,000 1,100 120J <200 <200 3/23/2021 180 2,700 1,600 17,000 1,100B 330 <100 <100 9/29/2021 210 3,400 2,700 17,000 910 230 <100 <100 4/14/2022 190 2,200 2,500 18,000 1,100 530 <50 <50 10/17/2022 191 910 2,420 11,400 1,060 112 <50.0 <50.0 5/3/2023 189 1,980 1,890 16,300 1,050 1,160 <50.0 <50.0 10/5/2023 221 1,800 2,560 12,800 1,170 406 <50.0 <50.0 5/13/2015 3,200 34,000 3,800 26,000 1,000 22,000 <500 <500 11/19/2015 4,900 36,000 3,300 19,000 740 28,000 <200 210 4/12/2016 6/14/2016 2,300 25,000 3,200 23,000 950B 15,000 <200 95J 11/30/2016 5,200 44,000 4,400 24,000 910 24,000 <200 150J 5/12/2017 4,500 40,000 4,100 24,000 880 22,000 <500 <500 11/30/2017 4,500 45,000 4,200 22,000 930 20,000 <200 <200 6/12/2018 3,400 34,000 3,000 17,000 700 19,000 <500 <500 1/16/2019 2,900 32,000 3,800 23,000 890B 15,000 <500 <500 4/23/2019 2,700 32,000 3,800 25,000 1,000 14,000 <200 <200 12/19/2019 3,400 38,000 4,000 23,000 900 14,000 <500 <500 5/20/2020 2,200 29,000 3,600 22,000 1,800 8,700 1.5 80 3/23/2021 2,200 26,000 3,600 24,000 930B 7,100 <200 <200 9/29/2021 2,600 37,000 4,000 23,000 780 8,600 <200 <200 4/14/2022 2,300 36,000 4,400 26,000 930 8,300 <200 <200 10/17/2022 2,200 31,300 4,050 21,700 900 5,940 <50.0 74.6 5/3/2023 1,720 16,200 3,230 19,300 1,090 6,090 <125 55.0J 10/5/2023 2,260 35,400 3,640 20,000 898 5,060 <200 57.6J MW-13 MW-14 Not Sampled Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 4/12/2016 623 13,200 2,320 14,600 836 2,190 <100 <100 6/14/2016 62 1,300 350 4,700 270B 180 <20 <20 11/29/2016 550 16,000 3,100 20,000 900 2,100 <100 <100 5/12/2017 160 4,500 1,000 10,000 710 580 <100 <100 11/30/2017 310 14,000 3,000 21,000 990 790 <50 <50 6/12/2018 190 5,200 1,400 8,700 410 510 <100 <100 1/16/2019 100 2,300 1,000 8,000 410 370 <50 <50 4/22/2019 7.8 35 46 210 40 25 <1.0 <1.0 12/18/2019 62 500 850 3,400 460 210 <20 <20 5/20/2020 190 3,500 1,900 12,000 650 1,000 <50 <50 3/23/2021 24 18 96 250 81 150 <1.0 1.1 9/29/2021 110 460 1,000 4,300 510 740 <20 <20 4/14/2022 77 13 840 2,000 600 510 <10 <10 10/17/2022 162 227 1,390 3,450 640 914 <10.0 <10.0 5/3/2023 37.7 2.6J 276 425 222 137 <4.0 <4.0 10/5/2023 97.0 126 1,040 2,810 751 360 <10.0 3.1J 4/12/2016 2,530 15,800 1,510 12,400 737 780 <100 <100 6/14/2016 660 5,700 560 6,500 320B 180 <50 <50 11/30/2016 2,500 25,000 2,500 20,000 880 850 <200 <200 5/11/2017 1,600 16,000 1,600 14,000 730 530 <200 <200 11/30/2017 1,900 22,000 2,100 17,000 830 640 <100 <100 6/12/2018 1,100 13,000 1,200 9,800 460 530 <200 <200 1/16/2019 760 13,000 1,600 13,000 710B 470 <200 <200 4/22/2019 120 1,000 250 2,300 180 91 <20 <20 12/19/2019 530 450 690 3,900 480 300 <20 <20 5/20/2020 550 13,000 1,700 13,000 650 410 <100 <100 3/23/2021 270 1,900 630 3,400 400 300 <20 <20 9/29/2021 420 3,700 1,600 8,600H 690 460 <20 <20 4/14/2022 330 440 1,600 4,400 730 380 <10 7.3J 10/17/2022 157 17.7 897 1,150 647 251 <5.0 <5.0 5/3/2023 108 3.0J 327 376 241 89.6 <5.0 1.8J 10/5/2023 122 49.6 698 1,450 545 111 <5.0 2.4J 5/12/2017 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 11/29/2017 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 6/12/2018 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1/16/2019 4/22/2019 12/18/2019 5/20/2020 <1.0 <1.0 1.4 <1.0 1.1 <1.0 <1.0 <1.0 3/23/2021 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 9/29/2021 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 4/14/2022 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 10/17/2022 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 <1.0 5/3/2023 <1.0 <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.0 10/5/2023 <1.0 <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.0 MW-16 MW-17 MW-15 Not Sampled Not Sampled Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 5/12/2017 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 11/29/2017 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 6/12/2018 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 1/16/2019 4/22/2019 12/18/2019 5/20/2020 <1.0 <1.0 6.5 <1.0 <1.0 <1.0 <1.0 <1.0 3/23/2021 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 9/29/2021 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 4/14/2022 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 10/17/2022 10/24/2002 NS NS NS NS NS NS NS NS 11/18/2002 90 8.7 7.7 28 ND ND ND ND 4/14/2003 10,000 100 800 3,000 200 ND 3.7 400 3/22/2006 14,000 1,800 1,400 6,000 290 730 <30 460 2/28/2008 45 1,700 1,700 9,100 490 <2.0 <1.0 <10 5/29/2008 63 8.7 2.6 39 15 550 <1.0 130 8/26/2008 150 11 7.1 33 9.6 980 <1.0 220 11/26/2008 100 3.7 2.7 12 5.3 1,000 <1.0 290 2/26/2009 12 1.2 <1.0 6 <2.0 580 <1.0 87 7/7/2009 8.8 2.1 <1.0 <5.0 <2.0 1,100 <1.0 200 12/16/2009 11 <1.0 <1.0 2.5 <2.0 1,600 <1.0 390 6/15/2010 12/16/2010 <1.0 <1.0 <1.0 <3.0 <5.0 6.0 <5.0 <10 6/14/2011 1.78 <1 <1 <10 <2 30.1 <1 <10 12/15/2011 2.22 <1 <1 <10 <2 12.8 <1 5.13J 6/14/2012 7.3 0.63J 0.57J 1.2J <5.0 19 <1.0 5.3 12/13/2012 2.79 <5.00 <5.00 <75.0 <25.0 51.8 <5.00 4.94J 6/18/2013 <1.0 <1.0 <1.0 <2.0 <2.0 61.4 <1.0 5.1 12/31/2013 NS NS NS NS NS NS NS NS 6/26/2014 NS NS NS NS NS NS NS NS 12/30/2014 NS NS NS NS NS NS NS NS 5/13/2015 NS NS NS NS NS NS NS NS 11/18/2015 2.8J <5.0 <5.0 <5.0 <5.0 930 <5.0 56 4/12/2016 6/13/2016 <10 <10 <10 3.6J 5.1BJ 980 <10 76 11/29/2016 <10 <10 <10 <10 <10 1,300 <10 89 5/11/2017 <20 <20 <20 <20 <20 1,200 <20 84 11/29/2017 <20 <20 <20 <20 <20 1,700 <20 110 6/12/2018 <20 <20 <20 <20 <20 1,500 <20 100 1/17/2019 <50 <50 <50 <50 <50 2,500 <50 160 4/22/2019 <50 <50 <50 <50 <50 2,300 <50 150 12/18/2019 <20 <20 <20 <20 <20 2,400 <20 160 5/21/2020 1.2 5.0 0.88J 4.7 0.76J 2,300 <1.0 160 3/23/2021 <50 <50 <50 <50 30J 2,300 <50 160 9/29/2021 1.7 <1.0 <1.0 0.46J <1.0 2,400H <1.0 160 4/14/2022 2.2 <1.0 <1.0 <1.0 <1.0 3,700 <1.0 220 10/17/2022 <25.0 <25.0 <25.0 <50.0 <50.0 4,210 <25.0 229 5/3/2023 <25.0 <25.0 <25.0 <50.0 58.0 4,580 <25.0 265 10/5/2023 2.7J <25.0 <25.0 <50.0 <50.0 4,100 <25.0 233 Damaged/Obstructed Below Grade Not Sampled Not Sampled - Could Not Open Well DMW-1 MW-18 Not Sampled Not Sampled Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 10/24/2002 NS NS NS NS NS NS NS NS 11/18/2002 NS NS NS NS NS NS NS NS 4/14/2003 3,000 60 ND 2,000 300 80 0.20 50 6/29/2006 <1.0 <5.0 <1.0 <3.0 <5.0 <1.0 <1.0 <1.0 2/28/2008 240 12 12 71 23 140 <1.0 <10 5/29/2008 3,000 11 3.0 30 100 3,000 <1.0 120 8/26/2008 2,000 3.5 2.0 16 57 2,300 <1.0 91 11/26/2008 780 <50 <50 <250 <100 1,300 <50 <500 2/26/2009 520 <1.0 <1.0 5.6 10 930 <1.0 28 7/7/2009 140 1.6 <1.0 <5.0 <2.0 550 <1.0 12 12/16/2009 66 <1.0 <1.0 1.1 9.0 600 <1.0 33 6/15/2010 12/16/2010 1.2 <1.0 <1.0 <3.0 <5.0 160 <5.0 <10 6/14/2011 4.17 <1 <1 6.86J <2 81.1 <1 3.57J 12/15/2011 <1 <1 <1 <10 <2 3.29 <1 <10 6/14/2012 <0.50 <1.0 <1.0 <3.0 <5.0 0.77J <1.0 <5.0 12/13/2012 <0.500 <1.00 <1.00 <15.0 <5.00 1.82J <1.00 <5.00 6/18/2013 1.1 <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.0 12/31/2013 NS NS NS NS NS NS NS NS 6/26/2014 0.25J <1.0 <1.0 <1.0 <1.0 0.91J <1.0 <1.0 12/30/2014 <1.0 <1.0 <1.0 <2.0 <2.0 1.4 <1.0 <1.0 5/13/2015 11/19/2015 2.0 <1.0 <1.0 <1.0 0.26J 5.9 <1.0 0.26J 4/12/2016 6/13/2016 <1.0 <1.0 <1.0 <1.0 0.37BJ <1.0 <1.0 <1.0 11/29/2016 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 5/11/2017 11/29/2017 <1.0 <1.0 <1.0 <1.0 <1.0 0.52J <1.0 <1.0 6/11/2018 <1.0 <1.0 <1.0 0.87J <1.0 2.9 <1.0 <1.0 1/16/2019 4/22/2019 12/18/2019 5/20/2020 3/23/2021 9/29/2021 4/14/2022 10/17/2022 <1.0 <1.0 <1.0 <2.0 <1.0 <1.0 <1.0 <1.0 5/3/2023 <1.0 <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.0 10/5/2023 0.10J <1.0 <1.0 <2.0 <2.0 0.45J <1.0 <1.0 Not Sampled Could Not Sample Not Sampled - Could Not Open Well Not Sampled DMW-2 DMW-2R Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 6/29/2006 290 <5.0 <1.0 13 32 54 <1.0 <1.0 2/28/2008 11,000 730 120 1,700 270 17,000 <1.0 460 5/29/2008 190 5.2 1.2 11 15 98 <1.0 <10 8/26/2008 180 10 1.8 25 6.9 120 <1.0 <10 11/26/2008 160 1.3 <1.0 <5.0 3.2 93 <1.0 11 2/26/2009 94 <1.0 <1.0 <5.0 <2.0 77 <1.0 <10 7/7/2009 180 <1.0 <1.0 <5.0 4.3 110 <1.0 <10 12/16/2009 220 8.7 <1.0 2.3 7.1 120 <1.0 <10 6/15/2010 230 5.1 <1.0 3.1 9.6 140 <1.0 <10 12/16/2010 200 3.5 <1.0 4.5 6.9 150 <5.0 <10 6/14/2011 216 <5 <5 19.3J 22.1 176 <5 10.7J 12/15/2011 277 <2 <2 <20 15.6 151 <2 17.8J 6/14/2012 250 <10 <10 <30 9.8J 210 <10 12J 12/13/2012 140 <1.00 <1.00 <15.0 5.60 174 <1.00 9.54 6/18/2013 214 <1.0 <1.0 <2.0 6.5 195 <1.0 12.6 12/31/2013 193 <2.00 <2.00 2.31J 14.4 179 <2.00 9.57J 6/26/2014 190 0.36J <1.0 1.9 5.4 190 <1.0 12 12/29/2014 180 <1.0 <1.0 <2.0 5.6 146 <1.0 9.4 5/13/2015 75 <1.0 <1.0 0.78J 3.3 140 <1.0 6.7 11/19/2015 190 0.24J <1.0 1.8 5.1 170 <1.0 9.6 4/12/2016 6/13/2016 190 <1.0 <1.0 1.7 4.4B 120 <1.0 8.5 11/29/2016 5/11/2017 11/29/2017 100 <1.0 <1.0 1.1 4.3 120 <1.0 7.2 6/11/2018 130 <1.0 <1.0 2.4 4.0 110 <1.0 6.6 1/17/2019 170 <1.0 <1.0 1.9 4.0B 89 <1.0 5.4 4/22/2019 36 <1.0 <1.0 0.48J 1.7 86 <1.0 5.3 12/18/2019 190 <1.0 <1.0 1.6 5.6 93 <1.0 5.9 5/20/2020 3/23/2021 9/29/2021 4/14/2022 8/13/2003 3,600 ND ND 320 87 370 ND ND 8/11/2004 DMW-4 8/13/2003 17,000 5,100 ND 4,000 250 27,000 1.1 ND Not Sampled DMW-3 DMW-2A Could Not Find Could Not Find Not Sampled Could Not Find Could Not Find Well Destroyed Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 6/29/2006 5,900 170 7 330 220 4 <1.0 <1.0 2/28/2008 10,000 850 110 1,900 250 16,000 <1.0 460 5/29/2008 3,800 19 41 110 73 15,000 <1.0 510 8/26/2008 4,300 280 48 630 190 22,000 <1.0 720 11/26/2008 1,100 <500 <500 <2,500 <1,000 10,000 <500 <5,000 2/26/2009 180 1.1 3 5 2.9 6,000 <1.0 190 7/7/2009 <100 <100 <100 <500 <200 9,200 <100 <1,000 12/16/2009 25 <1.0 <1.0 <10 <2.0 3,700 <1.0 <10 6/15/2010 81 2.1 <1.0 4.3 4.1 3,700 <1.0 110 12/16/2010 16 <1.0 <1.0 <3.0 <5.0 580 <5.0 20 6/14/2011 17.6J <50 <50 167J <100 4,710 <50 148J 12/15/2011 30.6J <100 <100 <1,000 <200 6,970 <100 609J 6/14/2012 3.1 <1.0 <1.0 <3.0 <5.0 1,200 <1.0 39 12/13/2012 <25.0 <50.0 <50.0 <750 <250 4,350 <50.0 125J 6/18/2013 5.5 <1.0 <1.0 <2.0 <2.0 3,330 <1.0 121 12/31/2013 1.69J <2.00 <2.00 <20.0 <4.00 300 <2.00 7.83J 6/26/2014 6.9J <10 <10 <10 <10 3,100 <10 76 12/30/2014 <20.0 <20.0 <20.0 <40.0 <40.0 4,530 <20.0 113 5/13/2015 <50 <50 <50 <50 <50 6,100 <50 140 11/18/2015 5.4 <5.0 <5.0 <5.0 <5.0 2,100 <5.0 54 4/12/2016 6/13/2016 <100 <100 <100 <100 43BJ 12,000 <100 260 11/29/2016 <50 <50 <50 <50 <50 5,400 <50 120 5/11/2017 <100 <100 <100 <100 <100 6,200 <100 130 11/29/2017 2.8 <1.0 <1.0 0.44J <1.0 48 <1.0 1.0 6/12/2018 <200 <200 <200 <200 <200 16,000 <200 230 1/17/2019 <5.0 <5.0 <5.0 <5.0 <5.0 620 <5.0 7.7 4/23/2019 <200 <200 <200 <200 <200 16,000 <200 200 12/19/2019 <20 <20 <20 <20 <20 3,000 <20 43 5/21/2020 1.9 3.8 0.79J 4.8 0.60J 2,900 <1.0 37 3/23/2021 14J <20 <20 <200 140BJ 14,000 <20 180 9/29/2021 3.3 <1.0 <1.0 1.3 <1.0 13,000H <1.0 150 4/14/2022 <1.0 <1.0 <1.0 <1.0 <1.0 7,900 <1.0 110 10/17/2022 <40.0 <40.0 <40.0 <80.0 <80.0 5,000 <40.0 69.3 5/3/2023 1.9 <1.0 <1.0 <2.0 <2.0 1.5 <1.0 <1.0 10/5/2023 5.6 0.45J <1.0 0.75J 0.29J 3.6 <1.0 0.17J DMW-4R Not Sampled Analytical Method(s) EPA Method 601/602 or 8260B EPA Method 601/602 or 8260B Contaminant of Concern Benzene Toluene Ethylbenzene Total Xylenes Naphthalene MTBE 1,2- Dibromoethane (EDB) Isopropyl Ether (IPE) 15A NCAC 2L.0202 Standard 1 600 600 500 6 20 0.02 70 15A NCAC 2L.0115 Gross Contaminant Level 5,000 260,000 84,500 85,500 6,000 20,000 50 70,000 Well ID Date Collected ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l NC DENR INCIDENT # 24412 TABLE B-4 SUMMARY OF GROUNDWATER SAMPLING RESULTS HOT SPOT #6006 SALISBURY, NORTH CAROLINA 12/21/2005 <1.3 <5.0 <1.0 <3.0 <5.0 <1.0 <1.0 <1.0 2/28/2008 3/14/2008 <1.0 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 5/29/2008 4.2 4.5 1.5 8.2 9.2 <2.0 <1.0 <10 8/26/2008 <1.0 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 11/26/2008 <1.0 <1.0 <1.0 <5.0 <2.0 <2.0 <1.0 <10 2/26/2009 n/a n/a n/a n/a n/a n/a n/a n/a 7/7/2009 n/a n/a n/a n/a n/a n/a n/a n/a *12/16/2009 <1.0 <1.0 <1.0 <10 <2.0 <2.0 <1.0 <10 6/15/2010 SW-19 12/21/2005 <1.3 <5.0 <1.0 <3.0 <5.0 <1.0 <1.0 <1.0 6/15/2010 <1.0 <1.0 <1.0 <10 <2.0 <2.0 <1.0 <10 12/16/2010 SW-21 6/15/2010 SW-22 6/15/2010 SW-23 6/15/2010 SW-27 6/15/2010 WSW-3 5/21/2020 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 WSW-20 5/21/2020 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 WSW-50 5/21/2020 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 WSW-51 5/21/2020 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 WSW-52 5/21/2020 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Notes: 1. ug/l = Micrograms per liter. 2. ND = Not detected at or above the method detection limit specified in the laboratory report. 3. Gross Contaminant Level as presented in the NCDENR 'Guidelines for Assessment and Corrective Action" dated July 15, 2008; effective December 1, 2008; and revised January 2010. 4. n/a = No sample could be collected from the well. 5. J = Estimated concentration below reporting limit. 6. B = Detected in method blank. 9. MTBE = Methyl-tert-butyl ether 10. S = MS/MSD failure * On December 16, 2009 the sample collected from water supply well SW-2 was mislabeled on the chain of custody and identified as WSW-1. SW = Surface Water WSW = Water Supply Well SW-20 Not Sampled Well no longer in service; no power to sample Well no longer in service; no power to sample 8. NS = Not sampled. SW-2 Well no longer in service; no power to sample Well no longer in service; no power to sample 7. All pre-2008 data was collected by others. SW-1 Well no longer in service; no power to sample Well no longer in service; no power to sample Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments SW-1 RL Jordan Oil Company P.O. Box 2527 Spartanburg, SC 29304 Hot Spot #6006 5710 South Main Street Salisbury, NC 28147 Not in use UNK PM UNK UNK ~110 The supply well is no longer in service. The well is located on-site approx. 110 feet from the source area. RL Jordan Oil: (864) 585- 2784 SW-2 Mr. Mike Reid 1309 N. Main Street China Grove, NC 28023 Main Stream Pets 5675 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Pet supply store. Well out of service. The well is located approx. 200 feet from the site. Mr. Mike Reid: (704) 202-5006 SW-3 Mrs. Ruby B. Jones 6655 Meadow Lane Salisbury, NC 28144 Mr. James Strictland 5670 South Main Street Salisbury, NC 28147 Mr. Wesley K. Safrit, Sr. 5690 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well is located inside pump house at the Jones residence. The well supplies potable water to two other residences. The well is located approx. 350 feet from this site. Mrs. Ruby Jones: (704) 851- 0324 Mr. James Strictland: (704) 855-2711 SW-4 Mr. Daryl R. Allen 308 Travis Lane Salisbury, NC 28144 Unique Arcade 5635 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a commercial property. The well is located approx. 480 feet from the site. Mr. Daryl Allen: (704) 633- 5410 SW-5 Mrs. Velva E. Fisher 5960 South Main Street Salisbury, NC 28147 Mrs. Velva E. Fisher 5960 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-6 Mr. Lawson C. Trexler 5570 South Main Street Salisbury, NC 28147 Mr. Lawson C. Trexler 5570 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-7 Mr. Nasby Mills 335 Swink Avenue Salisbury, NC 28147 Mr. Nasby Mills 335 Swink Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA Page 1 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-8 Mr .Harry T. Ferguson 210 Midway Drive Salisbury, NC 28144 Mr. Harry T. Ferguson 210 Midway Drive Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-9 Mrs. Metta C. Allmon 5630 Bertie Avenue Salisbury, NC 28144 Mrs. Metta C. Allmon 5630 Bertie Avenue Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-10 Mr. Steven D. Christy 3525 Millbridge Road China Grove, NC 28023 Swink Avenue Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Parcel #480 012 SW-11 Mr. Ludie N. Eller 155 Swink Avenue Salisbury, NC 28144 Mr. Ludie N. Eller 155 Swink Avenue Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-12 Ms. Catherine R. Powell 5750 Bertie Avenue Salisbury, NC 28147 Ms. Catherine R. Powell 5750 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-13 Mrs. Bertie Mason 5770 Bertie Avenue Salisbury, NC 28147 Mrs. Bertie Mason 5770 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-14 Mrs. Willouise C. Barnes 121 Eastover Drive Salisbury, NC 28147 Mrs. Willouise C. Barnes 121 Eastover Drive Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-15 Ms. Peggy B. Barnes 111 Eastover Drive Salisbury, NC 28147 Ms. Peggy B. Barnes 111 Eastover Drive Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Page 2 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-16 Ms. Jean L. Ray 5620 South Main Street Salisbury, NC 28147 Ms. Jean L. Ray 5620 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-17 Mr. Richard L. Cress 600 W. Ridge Avenue Landis, NC 28088 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-18 Mr. Raleigh B. Stancil 1673 Forest Ridge Drive Stanley, NC 28164 South Main Street Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-19 Mr. Harry K. Smith 1735 Mt. Hope Church Rd. Salisbury, NC 28146 Midway Drive Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Well out of service. Mr. Harry K. Smith: (704) 857-7174 SW-20 Mr. Rodney D. Power 115 Burr Lane Salisbury, NC 28146 108 Midway Drive Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Well located within 500 feet of the site. SW-21 Mrs. Mary Small 5730 South Main Street Salisbury, NC 28144 Mrs. Mary Small 5730 South Main Street Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK The supply well is no longer in service. Well located within 500 feet of the site. SW-22 Mr. David Clark 530 Henderson Street Salisbury, NC 28144 5750 South Main Street Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK The supply well could not be located. Well located wtihin 500 feet of the site. SW-23 Rowan County 130 West Innes Street Salisbury, NC 28144 5770 South Main Street Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK The supply well could not be located. Well located wtihin 500 feet of the site. Page 3 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-24 Rowan County 130 West Innes Street Salisbury, NC 28144 South Main Street Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-25 Mr. Mark A. Liddle 5735 Bertie Avenue Salisbury, NC 28147 Mr. Mark A. Liddle 5735 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-26 Mr. Lawson C. Trexler 5570 South Main Street Salisbury, NC 28147 Mr. Lawson C. Trexler 5570 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-27 Mrs. Linda H. Embler 3704 Northshore Drive High Point, NC 27265 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK The supply well is no longer in service. SW-28 Mr. George W. Bradshaw 1817 Webb Road Salisbury, NC 28144 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-29 Ms. Terry L. Sawyer 180 Eastover Drive Salisbury, NC 28147 Ms. Terry L. Sawyer 180 Eastover Drive Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-30 Mr. Thomas L. Burchette 245 Midway Drive Salisbury, NC 28144 Mr. Thomas L. Burchette 245 Midway Drive Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-31 Mr. Lawson C. Trexler 5570 South Main Street Salisbury, NC 28147 Swink Avenue Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Page 4 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-32 Mr. Jimmy F. Stein 5730 Bertie Avenue Salisbury, NC 28147 Mr. Jimmy F. Stein 5730 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-33 Mr. Billy D. Martin 5650 Bertie Avenue Salisbury, NC 28147 Mr. Billy D. Martin 5650 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-34 Mrs. Norma D. Faggart 517 Fairway Ridge Road Salisbury, NC 28146 Bertie Avenue Salisbury, NC 28146 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-35 Mr. Robert L. Bare 407 West Hoke Street Landis, NC 28088 Bertie Avenue Salisbury, NC 28146 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-36 Mr. Jeffrey R. Wiemelt 160 Swink Avenue Salisbury, NC 28147 Mr. Jeffrey R. Wiemelt 160 Swink Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-37 Mr. John S. Alex 150 Swink Avenue Salisbury, NC 28147 Mr. John S. Alex 150 Swink Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-38 Mr. David P. Davis 240 Swink Avenue Salisbury, NC 28147 Mr. David P. Davis 240 Swink Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-39 Mr. Herbert A. Burris 360 Swink Avenue Salisbury, NC 28147 Mr. Herbert A. Burris 360 Swink Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Page 5 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-40 Mr. Raymond M. Allmon 320 Roseman Road Salisbury, NC 28147 Mr. Raymond M. Allmon 320 Roseman Road Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-41 Mrs. Glendora M. Smith 5475 Bertie Avenue Salisbury, NC 28147 Mrs. Glendora M. Smith 5475 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-42 Mr. Donald R. Harrington 5555 Bertie Avenue Salisbury, NC 28147 Mr. Donald R. Harrington 5555 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-43 Mr. Thomas L. Burchette 245 Midway Drive Salisbury, NC 28144 Swink Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-44 Mr. Carl Bare 5550 Bertie Avenue Salisbury, NC 28147 Mr. Carl Bare 5550 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-45 Mr. Nasby J. Mills 335 Swink Avenue Salisbury, NC 28147 Mr. Nasby J. Mills 335 Swink Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-46 Mr. Donald R. Harrington 5555 Bertie Avenue Salisbury, NC 28147 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-47 Mr. Kenneth M. Eller 5525 Bertie Avenue Salisbury, NC 28147 Mr. Kenneth M. Eller 5525 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Page 6 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-48 Mr. David P. Davis 240 Swink Avenue Salisbury, NC 28147 Swink Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-49 Mrs. Deborah D. Foy 604 24th Avenue South Myrtle Beach, SC 29582 Swink Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-50 Mr. Edward A. Crotchfelt 5635 Bertie Avenue Salisbury, NC 28147 Mr. Edward A. Crotchfelt 5635 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-51 Mr. Rodney C. Whitaker 5675 Bertie Avenue Salisbury, NC 28147 Mr. Rodney C. Whitaker 5675 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-52 Mr. Mark A. Hunter 5655 Bertie Avenue Salisbury, NC 28147 Mr. Mark A. Hunter 5655 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-53 Mrs. Tricia A. Sink P. O. Box 141 Granite Quarry, NC 28072 South Main Street Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Well located within 500 feet of the site. SW-54 Mr. Rodney D. Power 110 Midway Drive Salisbury, NC 28146 Mr. Rodney D. Power 110 Midway Drive Salisbury, NC 28146 Drinking UNK PA UNK UNK UNK Well out of service. SW-55 Mr. William L. Spree 160 Eastover Drive Salisbury, NC 28147 Mr. William L. Spree 160 Eastover Drive Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Page 7 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-56 Mrs. Edith M. Whisnant 140 Eastover Drive Salisbury, NC 28147 Mrs. Edith M. Whisnant 140 Eastover Drive Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-57 Mr. Weldren D. Shuping 325 Roseman Road Salisbury, NC 28144 Mr. Weldren D. Shuping 325 Roseman Road Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-58 Ms. Lola File 235 Roseman Road Salisbury, NC 28147 Ms. Lola File 235 Roseman Road Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-59 Mr. Charles A. Fisher 225 Roseman Road Salisbury, NC 28147 Roseman Road Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-60 Mr. Charles A. Fisher 225 Roseman Road Salisbury, NC 28147 Mr. Charles A. Fisher 225 Roseman Road Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-61 Mr. Thomas K. Sheppard 498 Debra Circle Concord, NC 28025 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-62 Mr. Thomas K. Sheppard 498 Debra Circle Concord, NC 28025 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-63 Mr. William E. Carter 125 Roseman Road Salisbury, NC 28147 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Page 8 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-64 Mr. William E. Carter 125 Roseman Road Salisbury, NC 28147 Mr. William E. Carter 125 Roseman Road Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-65 Mr. Harry R. Langston 5810 South Main Street Salisbury, NC 28147 Mr. Harry R. Langston 5810 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-66 Mr. Michael L. Grissom 5830 South Main Street Salisbury, NC 28147 Mr. Michael L. Grissom 5830 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-67 Mr. Benny R. Hillard 5850 South Main Street Salisbury, NC 28147 Mr. Benny R. Hillard 5850 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-68 Mr. Benny R. Hillard 5850 South Main Street Salisbury, NC 28147 Mr. Benny R. Hillard 5850 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-69 Mr. Michael A. Cortez 5910 South Main Street Salisbury, NC 28147 Mr. Michael A. Cortez 5910 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-70 Mr. Hector G. Mora 5975 Bertie Avenue Salisbury, NC 28147 Mr. Hector G. Mora 5975 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-71 Ms. Carroll E. Brown 5860 South Main Street Salisbury, NC 28147 Ms. Carroll E. Brown 5860 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Page 9 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-72 Mr. Lee R. Redwine, Jr. 5865 Bertie Avenue Salisbury, NC 28147 Mr. Lee R. Redwine, Jr. 5865 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-73 Mrs. Nancy E. Potts 5835 Bertie Avenue Salisbury, NC 28147 Mrs. Nancy E. Potts 5835 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-74 Mrs. Heather L. Markle 5855 Bertie Avenue Salisbury, NC 28147 Mrs. Heather L. Markle 5855 Bertie Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-75 Mr. Charles W. Weddle 645 Mt. Hope Church Rd. Salisbury, NC 28146 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-76 Mr. Stanley W. Pinkston 5845 South Main Street Salisbury, NC 28147 Mr. Stanley W. Pinkston 5845 South Main Street Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-77 Mr. Weldren D. Shuping 325 Roseman Road Salisbury, NC 28144 Roseman Road Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-78 Mr. Robert D. Stone 5815 Meadow Lane Salisbury, NC 28147 Mr. Robert D. Stone 5815 Meadow Lane Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-79 Mrs. Janet R. Shuffler 5825 Meadow Lane Salisbury, NC 28147 Mrs. Janet R. Shuffler 5825 Meadow Lane Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Page 10 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-80 Mrs. Mary Bare 340 Roseman Road Salisbury, NC 28144 Mrs. Mary Bare 340 Roseman Road Salisbury, NC 28144 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-81 Mr. Walter L. Castor 450 Roseman Road Salisbury, NC 28147 Mr. Walter L. Castor 450 Roseman Road Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-82 Mr. Jerry Drake 456 Roseman Road Salisbury, NC 28147 Mr. Jerry Drake 456 Roseman Road Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-83 Mr. James C. Beck 104 St. Pauls Church Rd. Salisbury, NC 28146 Mr. James C. Beck 104 St. Pauls Church Rd. Salisbury, NC 28146 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-84 Mr. James C. Beck 104 St. Pauls Church Rd. Salisbury, NC 28146 St. Pauls Church Rd. Salisbury, NC 28146 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-85 Mr. James C. Beck 104 St. Pauls Church Rd. Salisbury, NC 28146 St. Pauls Church Rd. Salisbury, NC 28146 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-86 Mr. Earl E. Bridges III 1507 Old London Way Apex, NC 27502 Roseman Road Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-87 Ms. Theonia A. Richardson 1416 Hidden Circle Salisbury, NC 28147 Ms. Theonia A. Richardson 1416 Hidden Circle Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. Page 11 of 12 Well ID Property Owner and Address Supply Well Address Well Use Well Depth (feet) Type of Well Well Casing Depth (feet) Well Screen Interval (feet) Distance from Source Area of Release (feet) Comments NCDENR INCIDENT #24412 TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION HOT SPOT #6006 SALISBURY, NORTH CAROLINA SW-88 Mr. Kenneth D. Cress 1430 Hidden Circle Salisbury, NC 28147 Mr. Kenneth D. Cress 1430 Hidden Circle Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-89 Mr. Daniel R. Norman 1015 Hidden Circle Salisbury, NC 28147 Mr. Daniel R. Norman 1015 Hidden Circle Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-90 Mr. John A. Troutman 1396 Hidden Circle Salisbury, NC 28147 Mr. John A. Troutman 1396 Hidden Circle Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to a residential property. SW-91 Mr. George L. Belk 275 Mt. Moriah Church Rd. China Grove, NC 28023 Swink Avenue Salisbury, NC 28147 Drinking UNK PA UNK UNK UNK Supply well provides potable water to five residential properties. NOTES/KEY: See Figure 3 for supply well locations. UNK = Unknown PA = Potable and Active PN = Potable, Not in use, Not on Municipal Water PM = Potable, Not in use, on Municipal Water Page 12 of 12 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation 10/24/2002 26.00 -- -- 68.16 11/18/2002 24.60 -- -- 69.56 4/14/2003 19.43 -- -- 74.73 8/13/2003 17.41 -- -- 76.75 3/22/2006 15.49 -- -- 78.67 7/20/2006 17.13 -- -- 77.03 2/28/2008 22.14 -- -- 72.02 5/29/2008 16.24 -- -- 77.92 8/26/2008 20.39 -- -- 73.77 11/26/2008 18.74 -- -- 75.42 2/26/2009 16.16 -- -- 78.00 7/7/2009 13.25 -- -- 80.91 12/16/2009 12.35 -- -- 81.81 6/15/2010 13.54 -- -- 80.62 12/16/2010 22.43 -- -- 71.73 6/14/2011 18.81 -- -- 75.35 12/15/2011 16.71 -- -- 77.45 6/14/2012 14.92 -- -- 79.24 12/13/2012 23.48 -- -- 70.68 6/18/2013 13.44 -- -- 80.72 12/31/2013 12.30 -- -- 81.86 6/26/2014 9.86 -- -- 84.30 12/30/2014 16.53 -- -- 77.63 5/13/2015 12.75 -- -- 81.41 11/18/2015 11.73 -- -- 82.43 4/12/2016 NM -- -- NM 6/14/2016 12.26 -- -- 81.90 11/29/2016 NM -- -- NM 5/11/2017 NM -- -- NM 11/29/2017 18.23 -- -- 75.93 6/12/2018 13.65 -- -- 80.51 1/16/2019 NM -- -- NM 4/22/2019 NM -- -- NM 12/18/2019 NM -- -- NM 5/20/2020 NM -- -- NM 3/23/2021 NM -- -- NM 9/29/2021 NM -- -- NM 4/14/2022 NM -- -- NM 10/17/2022 NM -- -- NM 5/3/2023 NM -- -- NM 10/5/2023 NM -- -- NM TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 MW-1 20 to 35 94.1610/24/2002 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 11/18/2002 25.03 -- -- 69.78 4/14/2003 17.46 -- -- 77.35 8/13/2003 16.90 -- -- 77.91 3/22/2006 16.44 -- -- 78.37 7/20/2006 18.92 -- -- 75.89 2/28/2008 21.39 -- -- 73.42 5/29/2008 17.88 -- -- 76.93 8/26/2008 21.90 -- -- 72.91 11/26/2008 20.34 -- -- 74.47 2/27/2009 17.24 -- -- 77.57 7/8/2009 14.32 -- -- 80.49 12/16/2009 13.01 -- -- 81.80 6/15/2010 13.89 -- -- 80.92 12/16/2010 21.30 -- -- 73.51 6/14/2011 18.69 -- -- 76.12 12/15/2011 18.65 -- -- 76.16 6/14/2012 16.25 -- -- 78.56 12/13/2012 23.43 -- -- 71.38 6/18/2013 15.05 -- -- 79.76 12/31/2013 14.66 -- -- 80.15 6/26/2014 10.63 -- -- 84.18 12/30/2014 17.61 -- -- 77.20 5/13/2015 13.65 -- -- 81.16 11/19/2015 13.58 -- -- 81.23 4/12/2016 11.40 -- -- 83.41 6/14/2016 12.75 -- -- 82.06 11/30/2016 20.85 -- -- 73.96 5/12/2017 15.10 -- -- 79.71 11/30/2017 19.16 -- -- 75.65 6/12/2018 14.34 -- -- 80.47 1/16/2019 5.82 -- -- 88.99 4/23/2019 8.36 -- -- 86.45 12/19/2019 15.47 -- -- 79.34 5/20/2020 9.48 -- -- 85.33 3/23/2021 8.85 -- -- 85.96 9/29/2021 19.11 -- -- 75.70 4/14/2022 17.51 -- -- 77.30 10/17/2022 19.86 -- -- 74.95 5/3/2023 12.52 -- -- 82.29 10/5/2023 19.50 -- -- 75.31 20 to 35 94.81MW-2 11/13/2002 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 11/18/2002 24.12 -- -- 69.50 4/14/2003 18.44 -- -- 75.18 8/13/2003 18.02 -- -- 75.60 7/20/2006 18.34 18.33 0.01 75.25 2/28/2008 21.20 -- -- 72.39 8/26/2008 20.78 -- -- 72.81 11/26/2008 18.84 -- -- 74.75 2/26/2009 16.02 -- -- 77.57 7/7/2009 13.88 -- -- 79.71 12/16/2009 10.86 -- -- 82.73 6/15/2010 15.66 -- -- 77.93 12/16/2010 6/14/2011 20.11 -- -- 73.48 9/16/2011 22.95 -- -- 70.64 12/15/2011 19.94 -- -- 73.65 6/14/2012 15.42 -- -- 78.17 12/13/2012 23.88 -- -- 69.71 6/18/2013 13.60 -- -- 79.99 12/31/2013 11.44 -- -- 82.15 6/26/2014 11.42 -- -- 82.17 12/29/2014 16.75 -- -- 76.84 5/13/2015 13.49 -- -- 80.10 11/19/2015 12.00 -- -- 81.59 4/12/2016 NM -- -- NM 6/14/2016 13.13 -- -- 80.46 11/29/2016 NM -- -- NM 5/11/2017 NM -- -- NM 11/29/2017 18.60 -- -- 74.99 6/11/2018 14.05 -- -- 79.54 1/17/2019 7.35 -- -- 86.24 4/22/2019 9.28 -- -- 84.31 12/18/2019 13.43 -- -- 80.16 5/20/2020 9.23 -- -- 84.36 3/23/2021 9.24 -- -- 84.35 9/29/2021 19.20 -- -- 74.39 4/14/2022 15.94 -- -- 77.65 10/17/2022 19.70 -- -- 73.89 5/3/2023 12.40 -- -- 81.19 10/5/2023 20.14 -- -- 73.45 DRY 11/13/2002 MW-3R 3/20/2006 15 to 30 93.59 20 to 35 Could not find Well (gravel) MW-3 93.62 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 11/18/2002 23.64 -- -- 69.48 4/14/2003 18.57 -- -- 74.55 8/13/2003 17.85 -- -- 75.27 2/28/2008 20.22 -- -- 72.90 5/29/2008 16.68 -- -- 76.44 8/26/2008 20.73 -- -- 72.39 11/26/2008 18.54 -- -- 74.58 2/26/2009 16.04 -- -- 77.08 7/7/2009 13.66 -- -- 79.46 12/16/2009 10.95 -- -- 82.17 6/15/2010 15.37 -- -- 77.75 12/16/2010 24.67 -- -- 68.45 6/14/2011 20.10 -- -- 73.02 12/15/2011 19.46 -- -- 73.66 6/14/2012 14.44 -- -- 78.68 12/13/2012 23.53 -- -- 69.59 6/18/2013 13.53 -- -- 79.59 12/31/2013 11.42 -- -- 81.70 6/26/2014 11.05 -- -- 82.07 12/29/2014 16.36 -- -- 76.76 5/13/2015 13.34 -- -- 79.78 11/18/2015 12.11 -- -- 81.01 4/12/2016 NM -- -- NM 6/14/2016 12.66 -- -- 80.46 11/29/2016 20.20 -- -- 72.92 5/11/2017 NM -- -- NM 11/29/2017 18.45 -- -- 74.67 6/11/2018 13.74 -- -- 79.38 1/16/2019 NM -- -- NM 4/22/2019 NM -- -- NM 12/18/2019 NM -- -- NM 5/20/2020 NM -- -- NM 3/23/2021 NM -- -- NM 9/29/2021 NM -- -- NM 4/14/2022 NM -- -- NM 10/17/2022 NM -- -- NM 5/3/2023 NM -- -- NM 10/5/2023 NM -- -- NM MW-4 20 to 3511/13/2002 93.12 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 4/14/2003 18.57 -- -- 76.77 8/13/2003 16.41 -- -- 78.93 3/22/2006 17.40 -- -- 77.94 7/20/2006 19.17 -- -- 76.17 2/28/2008 NM -- -- NM 5/29/2008 18.10 -- -- 77.24 8/26/2008 20.66 -- -- 74.68 11/26/2008 19.81 -- -- 75.53 2/27/2009 17.85 -- -- 77.49 7/8/2009 NM -- -- NM 12/16/2009 NM -- -- NM 6/15/2010 13.38 -- -- 81.96 12/16/2010 21.18 -- -- 74.16 6/14/2011 18.46 -- -- 76.88 12/15/2011 19.10 -- -- 76.24 6/14/2012 16.36 -- -- 78.98 12/13/2012 23.69 -- -- 71.65 6/18/2013 15.90 -- -- 79.44 12/31/2013 15.53 -- -- 79.81 6/26/2014 9.92 -- -- 85.42 12/30/2014 17.37 -- -- 77.97 5/13/2015 13.89 -- -- 81.45 11/19/2015 14.28 -- -- 81.06 4/12/2016 NM -- -- NM 6/14/2016 12.67 -- -- 82.67 11/29/2016 21.16 -- -- 74.18 5/11/2017 NM -- -- NM 11/29/2017 19.56 -- -- 75.78 6/12/2018 14.36 -- -- 80.98 1/16/2019 NM -- -- NM 4/22/2019 NM -- -- NM 12/18/2019 NM -- -- NM 5/20/2020 NM -- -- NM 3/23/2021 NM -- -- NM 9/29/2021 NM -- -- NM 4/14/2022 NM -- -- NM 10/17/2022 NM -- -- NM 5/3/2023 NM -- -- NM 10/5/2023 NM -- -- NM 4/14/2003 18.66 -- -- 75.42 8/13/2003 18.53 -- -- 75.55 4/14/2003 17.44 -- -- 77.19 8/13/2003 17.06 -- -- 77.57 3/22/2006 16.23 -- -- 78.40 7/20/2006 12.40 -- -- 82.23 4/14/2003 17.66 -- -- 77.00 8/13/2003 17.16 -- -- 77.50 94.63 94.66 Well Destroyed 1/30/2003 20 to 35 MW-6 1/30/2003 MW-8 MW-7 20 to 35 20 to 352/28/2003 94.08 1/29/2003 95.34 Well Abandoned 08/2006 MW-5 20 to 35 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 7/20/2006 18.24 -- -- 76.33 2/28/2008 20.66 -- -- 73.91 5/29/2008 17.42 -- -- 77.15 8/26/2008 20.59 -- -- 73.98 11/26/2008 19.25 -- -- 75.32 2/27/2009 17.00 -- -- 77.57 7/7/2009 13.91 -- -- 80.66 12/16/2009 12.22 -- -- 82.35 6/15/2010 13.83 -- -- 80.74 12/16/2010 21.49 -- -- 73.08 6/14/2011 18.87 -- -- 75.70 12/15/2011 17.81 -- -- 76.76 6/14/2012 15.83 -- -- 78.74 12/13/2012 23.63 -- -- 70.94 6/18/2013 14.42 -- -- 80.15 12/31/2013 13.77 -- -- 80.80 6/26/2014 10.29 -- -- 84.28 12/30/2014 17.00 -- -- 77.57 5/13/2015 13.26 -- -- 81.31 11/19/2015 12.66 -- -- 81.91 4/12/2016 NM -- -- NM 6/14/2016 12.68 -- -- 81.89 11/29/2016 20.82 -- -- 73.75 5/11/2017 14.40 -- -- 80.17 11/30/2017 18.94 -- -- 75.63 6/12/2018 14.10 -- -- 80.47 1/16/2019 5.68 -- -- 88.89 4/22/2019 8.03 -- -- 86.54 12/18/2019 14.44 -- -- 80.13 5/21/2020 7.61 -- -- 86.96 3/23/2021 8.16 -- -- 86.41 9/29/2021 19.25 -- -- 75.32 4/14/2022 16.33 -- -- 78.24 10/17/2022 20.07 -- -- 74.50 5/3/2023 12.25 -- -- 82.32 10/5/2023 19.81 -- -- 74.76 4/10/2006 10 to 25MW-8R 94.57 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 8/13/2003 16.73 -- -- 76.12 3/22/2006 15.65 15.20 0.45 77.20 7/20/2006 18.58 17.28 1.30 74.27 2/28/2008 21.89 -- -- 70.96 5/29/2008 16.62 -- -- 76.23 8/26/2008 18.37 -- -- 74.48 11/26/2008 19.02 -- -- 73.83 2/26/2009 16.07 -- -- 76.78 7/8/2009 14.48 -- -- 78.37 12/16/2009 10.78 -- -- 82.07 6/15/2010 15.90 -- -- 76.95 12/16/2010 6/14/2011 18.95 -- -- 73.90 12/15/2011 17.52 -- -- 75.33 6/14/2012 14.66 -- -- 78.19 12/13/2012 23.25 -- -- 69.60 6/18/2013 13.66 -- -- 79.19 12/31/2013 11.32 -- -- 81.53 6/26/2014 11.81 -- -- 81.04 12/29/2014 16.77 -- -- 76.08 5/13/2015 13.56 -- -- 79.29 11/18/2015 12.56 -- -- 80.29 4/12/2016 NM -- -- NM 6/14/2016 10.26 -- -- 82.59 11/29/2016 20.89 -- -- 71.96 5/11/2017 13.72 -- -- 79.13 11/29/2017 18.67 -- -- 74.18 6/11/2018 14.16 -- -- 78.69 1/16/2019 8.17 -- -- 84.68 4/22/2019 9.25 -- -- 83.60 12/18/2019 13.90 -- -- 78.95 5/20/2020 10.70 -- -- 82.15 3/23/2021 9.44 -- -- 83.41 9/29/2021 19.45 -- -- 73.40 4/14/2022 14.72 -- -- 78.13 10/17/2022 20.10 -- -- 72.75 5/3/2023 12.20 -- -- 80.65 10/5/2023 20.48 -- -- 72.37 8/13/2003 20 to 35 DRY 92.85MW-9 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 8/13/2003 17.83 -- -- 74.35 3/22/2006 14.59 -- -- 77.59 7/20/2006 19.99 -- -- 72.19 2/28/2008 19.90 -- -- 72.28 5/29/2008 16.48 -- -- 75.70 8/26/2008 18.75 -- -- 73.43 11/26/2008 18.18 -- -- 74.00 2/27/2009 15.65 -- -- 76.53 7/8/2009 15.25 -- -- 76.93 12/16/2009 10.67 -- -- 81.51 6/15/2010 14.91 -- -- 77.27 12/16/2010 6/14/2011 19.58 -- -- 72.60 12/15/2011 17.62 -- -- 74.56 6/14/2012 13.49 -- -- 78.69 12/13/2012 22.54 -- -- 69.64 6/18/2013 14.02 -- -- 78.16 12/31/2013 8.91 -- -- 83.27 6/26/2014 13.04 -- -- 79.14 12/29/2014 8/13/2003 19.26 -- -- 73.63 3/22/2006 14.69 -- -- 78.20 7/20/2006 18.22 -- -- 74.67 5/29/2008 15.94 -- -- 76.95 8/26/2008 20.60 -- -- 72.29 11/26/2008 17.58 -- -- 75.31 2/27/2009 14.86 -- -- 78.03 7/8/2009 13.85 -- -- 79.04 12/16/2009 10.85 -- -- 82.04 6/15/2010 15.75 -- -- 77.14 12/16/2010 21.07 -- -- 71.82 6/14/2011 18.99 -- -- 73.90 12/15/2011 17.86 -- -- 75.03 6/14/2012 13.92 -- -- 78.97 12/13/2012 22.73 -- -- 70.16 6/18/2013 12.88 -- -- 80.01 12/31/2013 9.68 -- -- 83.21 6/26/2014 10.02 -- -- 82.87 12/29/2014 15.25 -- -- 77.64 5/13/2015 11.72 -- -- 81.17 11/18/2015 10.92 -- -- 81.97 4/12/2016 NM -- -- NM 6/14/2016 12.62 -- -- 80.27 11/29/2016 NM -- -- NM 5/11/2017 NM -- -- NM 11/29/2017 17.75 -- -- 75.14 6/11/2018 13.30 -- -- 79.59 1/16/2019 NM -- -- NM 4/22/2019 NM -- -- NM 12/18/2019 NM -- -- NM 5/20/2020 NM -- -- NM 3/23/2021 NM -- -- NM 9/29/2021 NM -- -- NM 4/14/2022 NM -- -- NM 10/17/2022 NM -- -- NM 5/3/2023 NM -- -- NM 10/5/2023 NM -- -- NM MW-11 8 to 23MW-10 6/6/2003 Could not find Well 92.18 6/6/2003 20 to 35 92.89 DRY DESTROYED Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS MW-12 6/9/2003 20 to 35 - 3/22/2006 15.72 -- -- - 7/20/2006 18.81 -- -- 75.46 2/28/2008 20.70 -- -- 73.57 5/29/2008 17.10 -- -- 77.17 8/26/2008 20.24 -- -- 74.03 11/26/2008 18.47 -- -- 75.80 2/27/2009 16.07 -- -- 78.20 7/8/2009 13.49 -- -- 80.78 12/16/2009 10.97 -- -- 83.30 6/15/2010 14.14 -- -- 80.13 12/16/2010 20.59 -- -- 73.68 6/14/2011 19.69 -- -- 74.58 12/15/2011 16.71 -- -- 77.56 6/14/2012 14.25 -- -- 80.02 12/13/2012 23.35 -- -- 70.92 6/18/2013 13.64 -- -- 80.63 12/31/2013 12.04 -- -- 82.23 6/26/2014 10.55 -- -- 83.72 12/29/2014 16.34 -- -- 77.93 5/13/2015 13.05 -- -- 81.22 11/18/2015 12.12 -- -- 82.15 4/12/2016 NM -- -- NM 6/14/2016 12.61 -- -- 81.66 11/29/2016 20.25 -- -- 74.02 5/11/2017 NM -- -- NM 11/29/2017 18.51 -- -- 75.76 6/11/2018 13.74 -- -- 80.53 1/16/2019 NM -- -- NM 4/22/2019 NM -- -- NM 12/18/2019 NM -- -- NM 5/20/2020 NM -- -- NM 3/23/2021 NM -- -- NM 9/29/2021 NM -- -- NM 4/14/2022 NM -- -- NM 10/17/2022 NM -- -- NM 5/3/2023 NM -- -- NM 10/5/2023 NM -- -- NM 5/13/2015 13.12 -- -- - 11/19/2015 13.02 -- -- - 4/12/2016 NM -- -- NM 6/14/2016 12.34 -- -- 82.08 11/30/2016 20.39 -- -- 74.03 5/11/2017 14.33 -- -- 80.09 11/30/2017 18.64 -- -- 75.78 6/12/2018 13.54 -- -- 80.88 1/16/2019 5.35 -- -- 89.07 4/23/2019 7.79 -- -- 86.63 12/19/2019 14.83 -- -- 79.59 5/20/2020 8.41 -- -- 86.01 3/23/2021 8.54 -- -- 85.88 9/29/2021 18.90 -- -- 75.52 4/14/2022 16.20 -- -- 78.22 10/17/2022 19.67 -- -- 74.75 5/3/2023 12.62 -- -- 81.80 10/5/2023 19.30 -- -- 75.12 94.2715 to 30 94.42 3/17/2006MW-12R MW-13 10/30/2014 15 to 30 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 5/13/2015 14.48 -- -- - 11/19/2015 14.11 -- -- - 4/12/2016 NM -- -- NM 6/14/2016 12.76 -- -- 82.32 11/30/2016 20.93 -- -- 74.15 5/12/2017 14.34 -- -- 80.74 11/30/2017 19.29 -- -- 75.79 6/12/2018 14.58 -- -- 80.50 1/16/2019 6.63 -- -- 88.45 4/23/2019 8.72 -- -- 86.36 12/19/2019 16.00 -- -- 79.08 5/20/2020 10.02 -- -- 85.06 3/23/2021 9.52 -- -- 85.56 9/29/2021 19.33 -- -- 75.75 4/14/2022 16.96 -- -- 78.12 10/17/2022 20.15 -- -- 74.93 5/3/2023 12.89 -- -- 82.19 10/5/2023 19.48 -- -- 75.60 4/12/2016 12.12 -- -- 83.62 6/14/2016 13.55 -- -- 82.19 11/29/2016 21.58 -- -- 74.16 5/12/2017 16.10 -- -- 79.64 11/30/2017 19.96 -- -- 75.78 6/12/2018 15.16 -- -- 80.58 1/16/2019 6.53 -- -- 89.21 4/22/2019 9.06 -- -- 86.68 12/18/2019 16.83 -- -- 78.91 5/20/2020 10.91 -- -- 84.83 3/23/2021 9.46 -- -- 86.28 9/29/2021 19.95 -- -- 75.79 4/14/2022 17.63 -- -- 78.11 10/17/2022 20.86 -- -- 74.88 5/3/2023 13.49 -- -- 82.25 10/5/2023 20.08 -- -- 75.66 4/12/2016 11.52 -- -- 83.46 6/14/2016 12.36 -- -- 82.62 11/30/2016 20.80 -- -- 74.18 5/11/2017 15.20 -- -- 79.78 11/30/2017 19.19 -- -- 75.79 6/12/2018 14.42 -- -- 80.56 1/16/2019 7.01 -- -- 87.97 4/22/2019 8.25 -- -- 86.73 12/19/2019 15.97 -- -- 79.01 5/20/2020 9.42 -- -- 85.56 3/23/2021 9.78 -- -- 85.20 9/29/2021 19.19 -- -- 75.79 4/14/2022 16.82 -- -- 78.16 10/17/2022 19.94 -- -- 75.04 5/3/2023 12.82 -- -- 82.16 10/5/2023 19.22 -- -- 75.76 5/12/2017 16.21 -- -- 79.23 11/29/2017 20.21 -- -- 75.23 6/12/2018 15.43 -- -- 80.01 1/16/2019 NM -- -- NM 4/22/2019 NM -- -- NM 12/18/2019 NM -- -- NM 5/20/2020 9.77 -- -- 85.67 3/23/2021 9.18 -- -- 86.26 9/29/2021 20.08 -- -- 75.36 4/14/2022 17.43 -- -- 78.01 10/17/2022 20.89 -- -- 74.55 5/3/2023 12.85 -- -- 82.59 10/5/2023 20.01 -- -- 75.43 94.984/11/2016 10 to 25MW-16 MW-14 10/30/2014 15 to 30 95.08 MW-15 10 to 25 95.744/11/2016 MW-17 10 to 30 95.445/11/2017 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 5/12/2017 17.45 -- -- 78.29 11/29/2017 21.23 -- -- 74.51 6/12/2018 16.47 -- -- 79.27 1/16/2019 NM -- -- NM 4/22/2019 NM -- -- NM 12/18/2019 NM -- -- NM 5/20/2020 11.54 -- -- 84.20 3/23/2021 9.82 -- -- 85.92 9/29/2021 21.03 -- -- 74.71 4/14/2022 18.40 -- -- 77.34 10/17/2022 5/3/2023 10/5/2023 11/17/2002 23.90 -- -- 69.64 4/14/2003 11.33 -- -- 82.21 8/13/2003 11.21 -- -- 82.33 3/22/2006 15.88 -- -- 77.66 7/20/2006 20.24 -- -- 73.30 2/28/2008 21.38 -- -- 72.16 5/29/2008 18.39 -- -- 75.15 8/26/2008 22.96 -- -- 70.58 11/26/2008 20.15 -- -- 73.39 2/26/2009 17.30 -- -- 76.24 7/7/2009 15.72 -- -- 77.82 12/16/2009 NM -- -- NM 6/15/2010 NM -- -- NM 12/16/2010 46.50 -- -- 47.04 6/14/2011 20.65 -- -- 72.89 12/15/2011 22.16 -- -- 71.38 6/14/2012 16.48 -- -- 77.06 12/13/2012 25.02 -- -- 68.52 6/18/2013 15.33 -- -- 78.21 12/31/2013 NM -- -- NM 6/26/2014 NM -- -- NM 12/29/2014 NM -- -- NM 5/13/2015 NM -- -- NM 11/18/2015 13.73 -- -- 79.81 4/12/2016 NM -- -- NM 6/13/2016 14.38 -- -- 79.16 11/29/2016 22.90 -- -- 70.64 5/11/2017 15.30 -- -- 78.24 11/29/2017 19.94 -- -- 73.60 6/12/2018 15.85 -- -- 77.69 1/17/2019 8.54 -- -- 85.00 4/22/019 10.31 -- -- 83.23 12/18/2019 15.52 -- -- 78.02 5/21/2020 10.10 -- -- 83.44 3/23/2021 10.25 -- -- 83.29 9/29/2021 20.56 -- -- 72.98 4/14/2022 17.11 -- -- 76.43 10/17/2022 20.95 -- -- 72.59 5/3/2023 13.61 -- -- 79.93 10/5/2023 21.35 -- -- 72.19 4/14/2003 19.90 -- -- 73.74 8/13/2003 19.78 -- -- 73.86 Obstructed 2/6/2003 80 to 90 93.64 93.5411/14/2002 55 to 60DMW-1 95.74 Obstructed Damaged/Obstructed Below Grade DMW-2 MW-18 5/11/2017 10 to 30 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 7/20/2006 20.24 -- -- 73.13 2/28/2008 28.00 -- -- 65.37 5/29/2008 30.58 -- -- 62.79 8/26/2008 23.34 -- -- 70.03 11/26/2008 19.34 -- -- 74.03 2/26/2009 16.64 -- -- 76.73 7/7/2009 14.48 -- -- 78.89 12/16/2009 NM -- -- NM 6/15/2010 NM -- -- NM 12/16/2010 22.75 -- -- 70.62 6/14/2011 25.13 -- -- 68.24 12/15/2011 102.84 -- -- -- 6/14/2012 107.60 -- -- -- 12/13/2012 22.99 -- -- 70.38 6/18/2013 14.67 -- -- 78.70 12/31/2013 NM -- -- NM 6/26/2014 12.46 -- -- 80.91 12/30/2014 17.29 -- -- 76.08 5/13/2015 11/19/2015 0.00 -- -- 0.00 4/12/2016 NM -- -- NM 6/13/2016 13.79 -- -- 79.58 11/29/2016 21.20 -- -- 72.17 5/11/2017 NM -- -- NM 11/29/2017 19.33 -- -- 74.04 6/11/2018 14.95 -- -- 78.42 1/16/2019 NM -- -- NM 4/22/2019 NM -- -- NM 12/18/2019 NM -- -- NM 5/20/2020 NM -- -- NM 3/23/2021 NM -- -- NM 9/29/2021 NM -- -- NM 4/14/2022 NM -- -- NM 10/17/2022 20.31 -- -- 73.06 5/3/2023 12.98 -- -- 80.39 10/5/2023 20.14 -- -- 73.23 DMW-2R Could Not Sample93.374/6/2006 115 to 120 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 7/20/2006 20.87 -- -- 72.84 2/28/2008 27.30 -- -- 66.41 5/29/2008 18.25 -- -- 75.46 8/26/2008 25.37 -- -- 68.34 11/26/2008 25.53 -- -- 68.18 2/26/2009 17.65 -- -- 76.06 7/7/2009 14.05 -- -- 79.66 12/16/2009 11.47 -- -- 82.24 6/15/2010 15.27 -- -- 78.44 12/16/2010 25.50 -- -- 68.21 6/14/2011 20.18 -- -- 73.53 12/15/2011 22.41 -- -- 71.30 6/14/2012 16.03 -- -- 77.68 12/13/2012 24.30 -- -- 69.41 6/18/2013 15.21 -- -- 78.50 12/31/2013 12.53 -- -- 81.18 6/26/2014 12.58 -- -- 81.13 12/29/2014 18.00 -- -- 75.71 5/13/2015 14.35 -- -- 79.36 11/19/2015 13.17 -- -- 80.54 4/12/2016 NM -- -- NM 6/13/2016 13.60 -- -- 80.11 11/30/2016 NM -- -- NM 5/11/2017 NM -- -- NM 11/29/2017 18.73 -- -- 74.98 6/11/2018 15.10 -- -- 78.61 1/17/2019 8.43 -- -- 85.28 4/22/2019 10.29 -- -- 83.42 12/18/2019 15.33 -- -- 78.38 5/20/2020 3/23/2021 9/29/2021 4/14/2022 8/13/2003 18.06 -- -- 75.52 DMW-4 6/20/2003 115 to 120 94.62 8/13/2003 18.46 -- -- 76.16 DMW-2A 6/17/2006 93.71 DMW-3 93.58 Could Not Find Could Not Find Could Not Find Well Destroyed6/20/2003 115 to 120 Could Not Find 155 to 160 Well ID Date Well Installed Screened Interval (ft) ** TOC Elevation (ft)* Date Well Gauged Depth to Water (ft)** Depth to Product (ft)** Product Thickness Water Table Elevation TABLE B-9 AND FREE PRODUCT THICKNESS HOT SPOT #6006 SALISBURY, NORTH CAROLINA NC DENR INCIDENT # 24412 CURRENT AND HISTORICAL GROUNDWATER ELEVATIONS 7/20/2006 19.83 -- -- 74.52 2/28/2008 24.63 -- -- 69.72 5/29/2008 19.05 -- -- 75.30 8/26/2008 23.34 -- -- 71.28 11/26/2008 20.44 -- -- 73.91 2/26/2009 17.78 -- -- 76.57 7/7/2009 15.98 -- -- 78.64 12/16/2009 14.83 -- -- 79.52 6/15/2010 16.08 -- -- 78.54 12/16/2010 29.90 -- -- 64.45 6/14/2011 20.86 -- -- 73.49 12/15/2011 25.27 -- -- 69.08 6/14/2012 18.25 -- -- 76.10 12/13/2012 25.19 -- -- 69.43 6/18/2013 15.85 -- -- 78.77 12/31/2013 12.44 -- -- 82.18 6/26/2014 13.34 -- -- 81.28 12/30/2014 18.37 -- -- 76.25 5/13/2015 15.06 -- -- 79.56 11/18/2015 14.16 -- -- 80.46 4/12/2016 NM -- -- NM 6/13/2016 13.85 -- -- 80.77 11/29/2016 23.35 -- -- 71.27 5/11/2017 14.56 -- -- 80.06 11/29/2017 19.17 -- -- 75.45 6/12/2018 16.26 -- -- 78.36 1/17/2019 8.95 -- -- 85.67 4/23/2019 10.82 -- -- 83.80 12/19/2019 15.98 -- -- 78.64 5/21/2020 10.00 -- -- 84.62 3/23/2021 10.63 -- -- 83.99 9/29/2021 20.96 -- -- 73.66 4/14/2022 17.51 -- -- 77.11 10/17/2022 21.34 -- -- 73.28 5/3/2023 14.09 -- -- 80.53 10/5/2023 21.62 -- -- 72.73 -- = None measured NM = Not measured All data pre-2008 was collected by others. DMW-4R 6/19/2006 115 to 120 ** = Relative to (TOC) top of casing. * = Elevations relative to site benchmark elevation of 100 feet. 94.35 Semi-Annual Sampling Report 6 11/1/2023 APPENDIX A Geologic Boring Logs (Not Applicable) Semi-Annual Sampling Report 7 11/1/2023 APPENDIX B Copies of NORR, NOV, Etc. Semi-Annual Sampling Report 8 11/1/2023 APPENDIX C Natural Attenuation Parameters (Not Applicable) Semi-Annual Sampling Report 9 11/1/2023 APPENDIX D Remedial System Performance Tables and Graphs (Not Applicable) Semi-Annual Sampling Report 10 11/1/2023 APPENDIX E Contaminant Mass vs. Time Graphs and Contaminant Concentration vs. Time Graphs For Contaminants >2L standards (Not Applicable) Semi-Annual Sampling Report 11 11/1/2023 APPENDIX F Compilation of Costs for Performance of Remedial Plan (Not Applicable) Semi-Annual Sampling Report 12 11/1/2023 APPENDIX G Chronology of Remediation Activities (Not Applicable) Semi-Annual Sampling Report 13 11/1/2023 APPENDIX H Proposed Remediation Schedule (Not Applicable) Semi-Annual Sampling Report 14 11/1/2023 APPENDIX I Laboratory Analytical Reports, COC, Field Data Sheets #=CL# October 17, 2023 LIMS USE: FR - KELLY CONE LIMS OBJECT ID: 92692083 92692083 Project: Pace Project No.: RE: Kelly Cone Terry Environmental Services, Inc. P.O. Box 25 Summerville, SC 29484 HOT SPOT #6006 Dear Kelly Cone: Enclosed are the analytical results for sample(s) received by the laboratory on October 05, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Sara Poulson sara.poulson@pacelabs.com Project Manager 704-977-0964 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 32 #=CP# CERTIFICATIONS Pace Project No.: Project: 92692083 HOT SPOT #6006 Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 32 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92692083 HOT SPOT #6006 Lab ID Sample ID Matrix Date Collected Date Received 92692083001 MW-17 Water 10/05/23 09:30 10/05/23 15:40 92692083002 MW-3R Water 10/05/23 09:56 10/05/23 15:40 92692083003 DMW-2R Water 10/05/23 10:33 10/05/23 15:40 92692083004 MW-15 Water 10/05/23 11:43 10/05/23 15:40 92692083005 DMW-4R Water 10/05/23 11:50 10/05/23 15:40 92692083006 MW-16 Water 10/05/23 12:14 10/05/23 15:40 92692083007 MW-9 Water 10/05/23 12:30 10/05/23 15:40 92692083008 MW-8R Water 10/05/23 12:46 10/05/23 15:40 92692083009 MW-2 Water 10/05/23 13:06 10/05/23 15:40 92692083010 MW-13 Water 10/05/23 13:26 10/05/23 15:40 92692083011 MW-14 Water 10/05/23 13:49 10/05/23 15:40 92692083012 DMW-1 Water 10/05/23 14:21 10/05/23 15:40 92692083013 TRIP BLANK Water 10/05/23 00:00 10/05/23 15:40 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 32 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92692083 HOT SPOT #6006 Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92692083001 MW-17 SM 6200B 42 PASI-CJJK 92692083002 MW-3R SM 6200B 42 PASI-CJJK 92692083003 DMW-2R SM 6200B 42 PASI-CJJK 92692083004 MW-15 SM 6200B 42 PASI-CJJK 92692083005 DMW-4R SM 6200B 42 PASI-CJJK 92692083006 MW-16 SM 6200B 42 PASI-CJJK 92692083007 MW-9 SM 6200B 42 PASI-CJJK 92692083008 MW-8R SM 6200B 42 PASI-CJJK 92692083009 MW-2 SM 6200B 42 PASI-CJJK 92692083010 MW-13 SM 6200B 42 PASI-CJJK 92692083011 MW-14 SM 6200B 42 PASI-CJJK 92692083012 DMW-1 SM 6200B 42 PASI-CJJK 92692083013 TRIP BLANK SM 6200B 42 PASI-CJJK PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:MW-17 Lab ID:92692083001 Collected:10/05/23 09:30 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene ND ug/L 10/12/23 05:20 71-43-21.0 0.079 1 Bromodichloromethane ND ug/L 10/12/23 05:20 75-27-41.0 0.17 1 Bromoform ND ug/L 10/12/23 05:20 75-25-21.0 0.20 1 Bromomethane ND ug/L 10/12/23 05:20 74-83-95.0 0.22 1 Carbon tetrachloride ND ug/L 10/12/23 05:20 56-23-51.0 0.17 1 Chlorobenzene ND ug/L 10/12/23 05:20 108-90-71.0 0.085 1 Chloroethane ND ug/L 10/12/23 05:20 75-00-31.0 0.17 1 Chloroform ND ug/L 10/12/23 05:20 67-66-31.0 0.069 1 Chloromethane ND ug/L 10/12/23 05:20 74-87-31.0 0.18 1 Dibromochloromethane ND ug/L 10/12/23 05:20 124-48-11.0 0.15 1 1,2-Dibromoethane (EDB)ND ug/L 10/12/23 05:20 106-93-41.0 0.15 1 1,2-Dichlorobenzene ND ug/L 10/12/23 05:20 95-50-11.0 0.094 1 1,3-Dichlorobenzene ND ug/L 10/12/23 05:20 541-73-11.0 0.098 1 1,4-Dichlorobenzene ND ug/L 10/12/23 05:20 106-46-71.0 0.090 1 Dichlorodifluoromethane ND ug/L 10/12/23 05:20 75-71-81.0 0.12 1 1,1-Dichloroethane ND ug/L 10/12/23 05:20 75-34-31.0 0.056 1 1,2-Dichloroethane ND ug/L 10/12/23 05:20 107-06-21.0 0.11 1 1,1-Dichloroethene ND ug/L 10/12/23 05:20 75-35-41.0 0.079 1 cis-1,2-Dichloroethene ND ug/L 10/12/23 05:20 156-59-21.0 0.11 1 trans-1,2-Dichloroethene ND ug/L 10/12/23 05:20 156-60-51.0 0.10 1 1,2-Dichloropropane ND ug/L 10/12/23 05:20 78-87-51.0 0.14 1 cis-1,3-Dichloropropene ND ug/L 10/12/23 05:20 10061-01-51.0 0.090 1 trans-1,3-Dichloropropene ND ug/L 10/12/23 05:20 10061-02-61.0 0.13 1 Diisopropyl ether ND ug/L 10/12/23 05:20 108-20-31.0 0.072 1 Ethylbenzene ND ug/L 10/12/23 05:20 100-41-41.0 0.081 1 Methylene Chloride ND ug/L 10/12/23 05:20 75-09-22.0 1.9 1 Methyl-tert-butyl ether ND ug/L 10/12/23 05:20 1634-04-41.0 0.053 1 Naphthalene ND ug/L 10/12/23 05:20 91-20-32.0 0.10 1 1,1,2,2-Tetrachloroethane ND ug/L 10/12/23 05:20 79-34-51.0 0.074 1 Tetrachloroethene ND ug/L 10/12/23 05:20 127-18-41.0 0.086 1 Toluene ND ug/L 10/12/23 05:20 108-88-31.0 0.090 1 1,1,1-Trichloroethane ND ug/L 10/12/23 05:20 71-55-61.0 0.11 1 1,1,2-Trichloroethane ND ug/L 10/12/23 05:20 79-00-51.0 0.096 1 Trichloroethene ND ug/L 10/12/23 05:20 79-01-61.0 0.17 1 Trichlorofluoromethane ND ug/L 10/12/23 05:20 75-69-41.0 0.14 1 Vinyl chloride ND ug/L 10/12/23 05:20 75-01-41.0 0.15 1 Xylene (Total)ND ug/L 10/12/23 05:20 1330-20-72.0 0.094 1 m&p-Xylene ND ug/L 10/12/23 05:20 179601-23-12.0 0.094 1 o-Xylene ND ug/L 10/12/23 05:20 95-47-61.0 0.14 1 Surrogates 4-Bromofluorobenzene (S)95 %10/12/23 05:20 460-00-470-130 1 1,2-Dichloroethane-d4 (S)94 %10/12/23 05:20 17060-07-070-130 1 Toluene-d8 (S)101 %10/12/23 05:20 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:MW-3R Lab ID:92692083002 Collected:10/05/23 09:56 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 110 ug/L 10/15/23 20:04 71-43-225.0 2.0 25 Bromodichloromethane ND ug/L 10/15/23 20:04 75-27-425.0 4.2 25 Bromoform ND ug/L 10/15/23 20:04 75-25-225.0 4.9 25 Bromomethane ND ug/L 10/15/23 20:04 74-83-91255.6 25 Carbon tetrachloride ND ug/L 10/15/23 20:04 56-23-525.0 4.2 25 Chlorobenzene ND ug/L 10/15/23 20:04 108-90-725.0 2.1 25 Chloroethane ND ug/L 10/15/23 20:04 75-00-325.0 4.3 25 Chloroform ND ug/L 10/15/23 20:04 67-66-325.0 1.7 25 Chloromethane ND ug/L 10/15/23 20:04 74-87-325.0 4.4 25 Dibromochloromethane ND ug/L 10/15/23 20:04 124-48-125.0 3.7 25 1,2-Dibromoethane (EDB)ND ug/L 10/15/23 20:04 106-93-425.0 3.7 25 1,2-Dichlorobenzene ND ug/L 10/15/23 20:04 95-50-125.0 2.4 25 1,3-Dichlorobenzene ND ug/L 10/15/23 20:04 541-73-125.0 2.4 25 1,4-Dichlorobenzene ND ug/L 10/15/23 20:04 106-46-725.0 2.2 25 Dichlorodifluoromethane ND ug/L 10/15/23 20:04 75-71-825.0 3.1 25 1,1-Dichloroethane ND ug/L 10/15/23 20:04 75-34-325.0 1.4 25 1,2-Dichloroethane 5.6J ug/L 10/15/23 20:04 107-06-225.0 2.6 25 1,1-Dichloroethene ND ug/L 10/15/23 20:04 75-35-425.0 2.0 25 cis-1,2-Dichloroethene ND ug/L 10/15/23 20:04 156-59-225.0 2.8 25 trans-1,2-Dichloroethene ND ug/L 10/15/23 20:04 156-60-525.0 2.5 25 1,2-Dichloropropane ND ug/L 10/15/23 20:04 78-87-525.0 3.4 25 cis-1,3-Dichloropropene ND ug/L 10/15/23 20:04 10061-01-525.0 2.2 25 trans-1,3-Dichloropropene ND ug/L 10/15/23 20:04 10061-02-625.0 3.3 25 Diisopropyl ether 17.9J ug/L 10/15/23 20:04 108-20-325.0 1.8 25 Ethylbenzene 16.4J ug/L 10/15/23 20:04 100-41-425.0 2.0 25 Methylene Chloride ND ug/L 10/15/23 20:04 75-09-250.0 47.2 25 Methyl-tert-butyl ether 4410 ug/L 10/15/23 20:04 1634-04-425.0 1.3 25 Naphthalene 51.4 ug/L 10/15/23 20:04 91-20-350.0 2.5 25 1,1,2,2-Tetrachloroethane ND ug/L 10/15/23 20:04 79-34-525.0 1.8 25 Tetrachloroethene ND ug/L 10/15/23 20:04 127-18-425.0 2.1 25 Toluene ND ug/L 10/15/23 20:04 108-88-325.0 2.2 25 1,1,1-Trichloroethane ND ug/L 10/15/23 20:04 71-55-625.0 2.7 25 1,1,2-Trichloroethane ND ug/L 10/15/23 20:04 79-00-525.0 2.4 25 Trichloroethene ND ug/L 10/15/23 20:04 79-01-625.0 4.3 25 Trichlorofluoromethane ND ug/L 10/15/23 20:04 75-69-425.0 3.6 25 Vinyl chloride ND ug/L 10/15/23 20:04 75-01-425.0 3.7 25 Xylene (Total)10.3J ug/L 10/15/23 20:04 1330-20-750.0 2.3 25 m&p-Xylene 2.4J ug/L 10/15/23 20:04 179601-23-150.0 2.3 25 o-Xylene 7.9J ug/L 10/15/23 20:04 95-47-625.0 3.6 25 Surrogates 4-Bromofluorobenzene (S)97 %10/15/23 20:04 460-00-470-130 25 1,2-Dichloroethane-d4 (S)101 %10/15/23 20:04 17060-07-070-130 25 Toluene-d8 (S)104 %10/15/23 20:04 2037-26-570-130 25 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:DMW-2R Lab ID:92692083003 Collected:10/05/23 10:33 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 0.10J ug/L 10/15/23 19:28 71-43-21.0 0.079 1 Bromodichloromethane ND ug/L 10/15/23 19:28 75-27-41.0 0.17 1 Bromoform ND ug/L 10/15/23 19:28 75-25-21.0 0.20 1 Bromomethane ND ug/L 10/15/23 19:28 74-83-95.0 0.22 1 Carbon tetrachloride ND ug/L 10/15/23 19:28 56-23-51.0 0.17 1 Chlorobenzene ND ug/L 10/15/23 19:28 108-90-71.0 0.085 1 Chloroethane ND ug/L 10/15/23 19:28 75-00-31.0 0.17 1 Chloroform ND ug/L 10/15/23 19:28 67-66-31.0 0.069 1 Chloromethane ND ug/L 10/15/23 19:28 74-87-31.0 0.18 1 Dibromochloromethane ND ug/L 10/15/23 19:28 124-48-11.0 0.15 1 1,2-Dibromoethane (EDB)ND ug/L 10/15/23 19:28 106-93-41.0 0.15 1 1,2-Dichlorobenzene ND ug/L 10/15/23 19:28 95-50-11.0 0.094 1 1,3-Dichlorobenzene ND ug/L 10/15/23 19:28 541-73-11.0 0.098 1 1,4-Dichlorobenzene ND ug/L 10/15/23 19:28 106-46-71.0 0.090 1 Dichlorodifluoromethane ND ug/L 10/15/23 19:28 75-71-81.0 0.12 1 1,1-Dichloroethane ND ug/L 10/15/23 19:28 75-34-31.0 0.056 1 1,2-Dichloroethane ND ug/L 10/15/23 19:28 107-06-21.0 0.11 1 1,1-Dichloroethene ND ug/L 10/15/23 19:28 75-35-41.0 0.079 1 cis-1,2-Dichloroethene ND ug/L 10/15/23 19:28 156-59-21.0 0.11 1 trans-1,2-Dichloroethene ND ug/L 10/15/23 19:28 156-60-51.0 0.10 1 1,2-Dichloropropane ND ug/L 10/15/23 19:28 78-87-51.0 0.14 1 cis-1,3-Dichloropropene ND ug/L 10/15/23 19:28 10061-01-51.0 0.090 1 trans-1,3-Dichloropropene ND ug/L 10/15/23 19:28 10061-02-61.0 0.13 1 Diisopropyl ether ND ug/L 10/15/23 19:28 108-20-31.0 0.072 1 Ethylbenzene ND ug/L 10/15/23 19:28 100-41-41.0 0.081 1 Methylene Chloride ND ug/L 10/15/23 19:28 75-09-22.0 1.9 1 Methyl-tert-butyl ether 0.45J ug/L 10/15/23 19:28 1634-04-41.0 0.053 1 Naphthalene ND ug/L 10/15/23 19:28 91-20-32.0 0.10 1 1,1,2,2-Tetrachloroethane ND ug/L 10/15/23 19:28 79-34-51.0 0.074 1 Tetrachloroethene ND ug/L 10/15/23 19:28 127-18-41.0 0.086 1 Toluene ND ug/L 10/15/23 19:28 108-88-31.0 0.090 1 1,1,1-Trichloroethane ND ug/L 10/15/23 19:28 71-55-61.0 0.11 1 1,1,2-Trichloroethane ND ug/L 10/15/23 19:28 79-00-51.0 0.096 1 Trichloroethene ND ug/L 10/15/23 19:28 79-01-61.0 0.17 1 Trichlorofluoromethane ND ug/L 10/15/23 19:28 75-69-41.0 0.14 1 Vinyl chloride ND ug/L 10/15/23 19:28 75-01-41.0 0.15 1 Xylene (Total)ND ug/L 10/15/23 19:28 1330-20-72.0 0.094 1 m&p-Xylene ND ug/L 10/15/23 19:28 179601-23-12.0 0.094 1 o-Xylene ND ug/L 10/15/23 19:28 95-47-61.0 0.14 1 Surrogates 4-Bromofluorobenzene (S)99 %10/15/23 19:28 460-00-470-130 1 1,2-Dichloroethane-d4 (S)99 %10/15/23 19:28 17060-07-070-130 1 Toluene-d8 (S)109 %10/15/23 19:28 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:MW-15 Lab ID:92692083004 Collected:10/05/23 11:43 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 97.0 ug/L 10/15/23 21:17 71-43-210.0 0.79 10 Bromodichloromethane ND ug/L 10/15/23 21:17 75-27-410.0 1.7 10 Bromoform ND ug/L 10/15/23 21:17 75-25-210.0 2.0 10 Bromomethane ND ug/L 10/15/23 21:17 74-83-950.0 2.2 10 Carbon tetrachloride ND ug/L 10/15/23 21:17 56-23-510.0 1.7 10 Chlorobenzene ND ug/L 10/15/23 21:17 108-90-710.0 0.85 10 Chloroethane ND ug/L 10/15/23 21:17 75-00-310.0 1.7 10 Chloroform ND ug/L 10/15/23 21:17 67-66-310.0 0.69 10 Chloromethane ND ug/L 10/15/23 21:17 74-87-310.0 1.8 10 Dibromochloromethane ND ug/L 10/15/23 21:17 124-48-110.0 1.5 10 1,2-Dibromoethane (EDB)ND ug/L 10/15/23 21:17 106-93-410.0 1.5 10 1,2-Dichlorobenzene ND ug/L 10/15/23 21:17 95-50-110.0 0.94 10 1,3-Dichlorobenzene ND ug/L 10/15/23 21:17 541-73-110.0 0.98 10 1,4-Dichlorobenzene ND ug/L 10/15/23 21:17 106-46-710.0 0.90 10 Dichlorodifluoromethane ND ug/L 10/15/23 21:17 75-71-810.0 1.2 10 1,1-Dichloroethane ND ug/L 10/15/23 21:17 75-34-310.0 0.56 10 1,2-Dichloroethane ND ug/L 10/15/23 21:17 107-06-210.0 1.1 10 1,1-Dichloroethene ND ug/L 10/15/23 21:17 75-35-410.0 0.79 10 cis-1,2-Dichloroethene ND ug/L 10/15/23 21:17 156-59-210.0 1.1 10 trans-1,2-Dichloroethene ND ug/L 10/15/23 21:17 156-60-510.0 1.0 10 1,2-Dichloropropane ND ug/L 10/15/23 21:17 78-87-510.0 1.4 10 cis-1,3-Dichloropropene ND ug/L 10/15/23 21:17 10061-01-510.0 0.90 10 trans-1,3-Dichloropropene ND ug/L 10/15/23 21:17 10061-02-610.0 1.3 10 Diisopropyl ether 3.1J ug/L 10/15/23 21:17 108-20-310.0 0.72 10 Ethylbenzene 1040 ug/L 10/15/23 21:17 100-41-410.0 0.81 10 Methylene Chloride ND ug/L 10/15/23 21:17 75-09-220.0 18.9 10 Methyl-tert-butyl ether 360 ug/L 10/15/23 21:17 1634-04-410.0 0.53 10 Naphthalene 751 ug/L 10/15/23 21:17 91-20-320.0 1.0 10 1,1,2,2-Tetrachloroethane ND ug/L 10/15/23 21:17 79-34-510.0 0.74 10 Tetrachloroethene ND ug/L 10/15/23 21:17 127-18-410.0 0.86 10 Toluene 126 ug/L 10/15/23 21:17 108-88-310.0 0.90 10 1,1,1-Trichloroethane ND ug/L 10/15/23 21:17 71-55-610.0 1.1 10 1,1,2-Trichloroethane ND ug/L 10/15/23 21:17 79-00-510.0 0.96 10 Trichloroethene ND ug/L 10/15/23 21:17 79-01-610.0 1.7 10 Trichlorofluoromethane ND ug/L 10/15/23 21:17 75-69-410.0 1.4 10 Vinyl chloride ND ug/L 10/15/23 21:17 75-01-410.0 1.5 10 Xylene (Total)2810 ug/L 10/15/23 21:17 1330-20-720.0 0.94 10 m&p-Xylene 2120 ug/L 10/15/23 21:17 179601-23-120.0 0.94 10 o-Xylene 696 ug/L 10/15/23 21:17 95-47-610.0 1.4 10 Surrogates 4-Bromofluorobenzene (S)96 %10/15/23 21:17 460-00-470-130 10 1,2-Dichloroethane-d4 (S)98 %10/15/23 21:17 17060-07-070-130 10 Toluene-d8 (S)104 %10/15/23 21:17 2037-26-570-130 10 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:DMW-4R Lab ID:92692083005 Collected:10/05/23 11:50 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 5.6 ug/L 10/12/23 06:15 71-43-21.0 0.079 1 Bromodichloromethane ND ug/L 10/12/23 06:15 75-27-41.0 0.17 1 Bromoform ND ug/L 10/12/23 06:15 75-25-21.0 0.20 1 Bromomethane ND ug/L 10/12/23 06:15 74-83-95.0 0.22 1 Carbon tetrachloride ND ug/L 10/12/23 06:15 56-23-51.0 0.17 1 Chlorobenzene ND ug/L 10/12/23 06:15 108-90-71.0 0.085 1 Chloroethane ND ug/L 10/12/23 06:15 75-00-31.0 0.17 1 Chloroform ND ug/L 10/12/23 06:15 67-66-31.0 0.069 1 Chloromethane ND ug/L 10/12/23 06:15 74-87-31.0 0.18 1 Dibromochloromethane ND ug/L 10/12/23 06:15 124-48-11.0 0.15 1 1,2-Dibromoethane (EDB)ND ug/L 10/12/23 06:15 106-93-41.0 0.15 1 1,2-Dichlorobenzene ND ug/L 10/12/23 06:15 95-50-11.0 0.094 1 1,3-Dichlorobenzene ND ug/L 10/12/23 06:15 541-73-11.0 0.098 1 1,4-Dichlorobenzene ND ug/L 10/12/23 06:15 106-46-71.0 0.090 1 Dichlorodifluoromethane ND ug/L 10/12/23 06:15 75-71-81.0 0.12 1 1,1-Dichloroethane ND ug/L 10/12/23 06:15 75-34-31.0 0.056 1 1,2-Dichloroethane ND ug/L 10/12/23 06:15 107-06-21.0 0.11 1 1,1-Dichloroethene ND ug/L 10/12/23 06:15 75-35-41.0 0.079 1 cis-1,2-Dichloroethene ND ug/L 10/12/23 06:15 156-59-21.0 0.11 1 trans-1,2-Dichloroethene ND ug/L 10/12/23 06:15 156-60-51.0 0.10 1 1,2-Dichloropropane ND ug/L 10/12/23 06:15 78-87-51.0 0.14 1 cis-1,3-Dichloropropene ND ug/L 10/12/23 06:15 10061-01-51.0 0.090 1 trans-1,3-Dichloropropene ND ug/L 10/12/23 06:15 10061-02-61.0 0.13 1 Diisopropyl ether 0.17J ug/L 10/12/23 06:15 108-20-31.0 0.072 1 Ethylbenzene ND ug/L 10/12/23 06:15 100-41-41.0 0.081 1 Methylene Chloride ND ug/L 10/12/23 06:15 75-09-22.0 1.9 1 Methyl-tert-butyl ether 3.6 ug/L 10/12/23 06:15 1634-04-41.0 0.053 1 Naphthalene 0.29J ug/L 10/12/23 06:15 91-20-3 C82.0 0.10 1 1,1,2,2-Tetrachloroethane ND ug/L 10/12/23 06:15 79-34-51.0 0.074 1 Tetrachloroethene ND ug/L 10/12/23 06:15 127-18-41.0 0.086 1 Toluene 0.45J ug/L 10/12/23 06:15 108-88-31.0 0.090 1 1,1,1-Trichloroethane ND ug/L 10/12/23 06:15 71-55-61.0 0.11 1 1,1,2-Trichloroethane ND ug/L 10/12/23 06:15 79-00-51.0 0.096 1 Trichloroethene ND ug/L 10/12/23 06:15 79-01-61.0 0.17 1 Trichlorofluoromethane ND ug/L 10/12/23 06:15 75-69-41.0 0.14 1 Vinyl chloride ND ug/L 10/12/23 06:15 75-01-41.0 0.15 1 Xylene (Total)0.75J ug/L 10/12/23 06:15 1330-20-72.0 0.094 1 m&p-Xylene 0.48J ug/L 10/12/23 06:15 179601-23-12.0 0.094 1 o-Xylene 0.27J ug/L 10/12/23 06:15 95-47-61.0 0.14 1 Surrogates 4-Bromofluorobenzene (S)97 %10/12/23 06:15 460-00-470-130 1 1,2-Dichloroethane-d4 (S)93 %10/12/23 06:15 17060-07-070-130 1 Toluene-d8 (S)99 %10/12/23 06:15 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:MW-16 Lab ID:92692083006 Collected:10/05/23 12:14 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 122 ug/L 10/12/23 08:22 71-43-25.0 0.39 5 Bromodichloromethane ND ug/L 10/12/23 08:22 75-27-45.0 0.85 5 Bromoform ND ug/L 10/12/23 08:22 75-25-25.0 0.98 5 Bromomethane ND ug/L 10/12/23 08:22 74-83-925.0 1.1 5 Carbon tetrachloride ND ug/L 10/12/23 08:22 56-23-55.0 0.84 5 Chlorobenzene ND ug/L 10/12/23 08:22 108-90-75.0 0.42 5 Chloroethane ND ug/L 10/12/23 08:22 75-00-35.0 0.86 5 Chloroform ND ug/L 10/12/23 08:22 67-66-35.0 0.35 5 Chloromethane ND ug/L 10/12/23 08:22 74-87-35.0 0.88 5 Dibromochloromethane ND ug/L 10/12/23 08:22 124-48-15.0 0.74 5 1,2-Dibromoethane (EDB)ND ug/L 10/12/23 08:22 106-93-45.0 0.74 5 1,2-Dichlorobenzene ND ug/L 10/12/23 08:22 95-50-15.0 0.47 5 1,3-Dichlorobenzene ND ug/L 10/12/23 08:22 541-73-15.0 0.49 5 1,4-Dichlorobenzene ND ug/L 10/12/23 08:22 106-46-75.0 0.45 5 Dichlorodifluoromethane ND ug/L 10/12/23 08:22 75-71-85.0 0.62 5 1,1-Dichloroethane ND ug/L 10/12/23 08:22 75-34-35.0 0.28 5 1,2-Dichloroethane ND ug/L 10/12/23 08:22 107-06-25.0 0.53 5 1,1-Dichloroethene ND ug/L 10/12/23 08:22 75-35-45.0 0.39 5 cis-1,2-Dichloroethene ND ug/L 10/12/23 08:22 156-59-25.0 0.56 5 trans-1,2-Dichloroethene ND ug/L 10/12/23 08:22 156-60-55.0 0.50 5 1,2-Dichloropropane ND ug/L 10/12/23 08:22 78-87-55.0 0.68 5 cis-1,3-Dichloropropene ND ug/L 10/12/23 08:22 10061-01-55.0 0.45 5 trans-1,3-Dichloropropene ND ug/L 10/12/23 08:22 10061-02-65.0 0.66 5 Diisopropyl ether 2.4J ug/L 10/12/23 08:22 108-20-35.0 0.36 5 Ethylbenzene 698 ug/L 10/12/23 08:22 100-41-45.0 0.41 5 Methylene Chloride ND ug/L 10/12/23 08:22 75-09-210.0 9.4 5 Methyl-tert-butyl ether 111 ug/L 10/12/23 08:22 1634-04-45.0 0.27 5 Naphthalene 545 ug/L 10/12/23 08:22 91-20-310.0 0.50 5 1,1,2,2-Tetrachloroethane ND ug/L 10/12/23 08:22 79-34-55.0 0.37 5 Tetrachloroethene ND ug/L 10/12/23 08:22 127-18-45.0 0.43 5 Toluene 49.6 ug/L 10/12/23 08:22 108-88-35.0 0.45 5 1,1,1-Trichloroethane ND ug/L 10/12/23 08:22 71-55-65.0 0.54 5 1,1,2-Trichloroethane ND ug/L 10/12/23 08:22 79-00-55.0 0.48 5 Trichloroethene ND ug/L 10/12/23 08:22 79-01-65.0 0.86 5 Trichlorofluoromethane ND ug/L 10/12/23 08:22 75-69-45.0 0.72 5 Vinyl chloride ND ug/L 10/12/23 08:22 75-01-45.0 0.74 5 Xylene (Total)1450 ug/L 10/12/23 08:22 1330-20-710.0 0.47 5 m&p-Xylene 1050 ug/L 10/12/23 08:22 179601-23-110.0 0.47 5 o-Xylene 403 ug/L 10/12/23 08:22 95-47-65.0 0.72 5 Surrogates 4-Bromofluorobenzene (S)96 %10/12/23 08:22 460-00-470-130 5 1,2-Dichloroethane-d4 (S)90 %10/12/23 08:22 17060-07-070-130 5 Toluene-d8 (S)99 %10/12/23 08:22 2037-26-570-130 5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:MW-9 Lab ID:92692083007 Collected:10/05/23 12:30 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 1.9J ug/L 10/15/23 21:35 71-43-212.5 0.98 12.5 Bromodichloromethane ND ug/L 10/15/23 21:35 75-27-412.5 2.1 12.5 Bromoform ND ug/L 10/15/23 21:35 75-25-212.5 2.5 12.5 Bromomethane ND ug/L 10/15/23 21:35 74-83-962.5 2.8 12.5 Carbon tetrachloride ND ug/L 10/15/23 21:35 56-23-512.5 2.1 12.5 Chlorobenzene ND ug/L 10/15/23 21:35 108-90-712.5 1.1 12.5 Chloroethane ND ug/L 10/15/23 21:35 75-00-312.5 2.2 12.5 Chloroform ND ug/L 10/15/23 21:35 67-66-312.5 0.86 12.5 Chloromethane ND ug/L 10/15/23 21:35 74-87-312.5 2.2 12.5 Dibromochloromethane ND ug/L 10/15/23 21:35 124-48-112.5 1.8 12.5 1,2-Dibromoethane (EDB)ND ug/L 10/15/23 21:35 106-93-412.5 1.8 12.5 1,2-Dichlorobenzene ND ug/L 10/15/23 21:35 95-50-112.5 1.2 12.5 1,3-Dichlorobenzene ND ug/L 10/15/23 21:35 541-73-112.5 1.2 12.5 1,4-Dichlorobenzene ND ug/L 10/15/23 21:35 106-46-712.5 1.1 12.5 Dichlorodifluoromethane ND ug/L 10/15/23 21:35 75-71-812.5 1.5 12.5 1,1-Dichloroethane ND ug/L 10/15/23 21:35 75-34-312.5 0.70 12.5 1,2-Dichloroethane ND ug/L 10/15/23 21:35 107-06-212.5 1.3 12.5 1,1-Dichloroethene ND ug/L 10/15/23 21:35 75-35-412.5 0.98 12.5 cis-1,2-Dichloroethene ND ug/L 10/15/23 21:35 156-59-212.5 1.4 12.5 trans-1,2-Dichloroethene ND ug/L 10/15/23 21:35 156-60-512.5 1.3 12.5 1,2-Dichloropropane ND ug/L 10/15/23 21:35 78-87-512.5 1.7 12.5 cis-1,3-Dichloropropene ND ug/L 10/15/23 21:35 10061-01-512.5 1.1 12.5 trans-1,3-Dichloropropene ND ug/L 10/15/23 21:35 10061-02-612.5 1.6 12.5 Diisopropyl ether 3.2J ug/L 10/15/23 21:35 108-20-312.5 0.91 12.5 Ethylbenzene 478 ug/L 10/15/23 21:35 100-41-412.5 1.0 12.5 Methylene Chloride ND ug/L 10/15/23 21:35 75-09-225.0 23.6 12.5 Methyl-tert-butyl ether 1790 ug/L 10/15/23 21:35 1634-04-412.5 0.67 12.5 Naphthalene 586 ug/L 10/15/23 21:35 91-20-325.0 1.3 12.5 1,1,2,2-Tetrachloroethane ND ug/L 10/15/23 21:35 79-34-512.5 0.92 12.5 Tetrachloroethene ND ug/L 10/15/23 21:35 127-18-412.5 1.1 12.5 Toluene 2.8J ug/L 10/15/23 21:35 108-88-312.5 1.1 12.5 1,1,1-Trichloroethane ND ug/L 10/15/23 21:35 71-55-612.5 1.3 12.5 1,1,2-Trichloroethane ND ug/L 10/15/23 21:35 79-00-512.5 1.2 12.5 Trichloroethene ND ug/L 10/15/23 21:35 79-01-612.5 2.1 12.5 Trichlorofluoromethane ND ug/L 10/15/23 21:35 75-69-412.5 1.8 12.5 Vinyl chloride ND ug/L 10/15/23 21:35 75-01-412.5 1.9 12.5 Xylene (Total)53.3 ug/L 10/15/23 21:35 1330-20-725.0 1.2 12.5 m&p-Xylene 47.3 ug/L 10/15/23 21:35 179601-23-125.0 1.2 12.5 o-Xylene 6.0J ug/L 10/15/23 21:35 95-47-612.5 1.8 12.5 Surrogates 4-Bromofluorobenzene (S)96 %10/15/23 21:35 460-00-470-130 12.5 1,2-Dichloroethane-d4 (S)100 %10/15/23 21:35 17060-07-070-130 12.5 Toluene-d8 (S)108 %10/15/23 21:35 2037-26-570-130 12.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:MW-8R Lab ID:92692083008 Collected:10/05/23 12:46 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 1.9J ug/L 10/12/23 08:40 71-43-210.0 0.79 10 Bromodichloromethane ND ug/L 10/12/23 08:40 75-27-410.0 1.7 10 Bromoform ND ug/L 10/12/23 08:40 75-25-210.0 2.0 10 Bromomethane ND ug/L 10/12/23 08:40 74-83-950.0 2.2 10 Carbon tetrachloride ND ug/L 10/12/23 08:40 56-23-510.0 1.7 10 Chlorobenzene ND ug/L 10/12/23 08:40 108-90-710.0 0.85 10 Chloroethane ND ug/L 10/12/23 08:40 75-00-310.0 1.7 10 Chloroform ND ug/L 10/12/23 08:40 67-66-310.0 0.69 10 Chloromethane ND ug/L 10/12/23 08:40 74-87-310.0 1.8 10 Dibromochloromethane ND ug/L 10/12/23 08:40 124-48-110.0 1.5 10 1,2-Dibromoethane (EDB)ND ug/L 10/12/23 08:40 106-93-410.0 1.5 10 1,2-Dichlorobenzene ND ug/L 10/12/23 08:40 95-50-110.0 0.94 10 1,3-Dichlorobenzene ND ug/L 10/12/23 08:40 541-73-110.0 0.98 10 1,4-Dichlorobenzene ND ug/L 10/12/23 08:40 106-46-710.0 0.90 10 Dichlorodifluoromethane ND ug/L 10/12/23 08:40 75-71-810.0 1.2 10 1,1-Dichloroethane ND ug/L 10/12/23 08:40 75-34-310.0 0.56 10 1,2-Dichloroethane ND ug/L 10/12/23 08:40 107-06-210.0 1.1 10 1,1-Dichloroethene ND ug/L 10/12/23 08:40 75-35-410.0 0.79 10 cis-1,2-Dichloroethene ND ug/L 10/12/23 08:40 156-59-210.0 1.1 10 trans-1,2-Dichloroethene ND ug/L 10/12/23 08:40 156-60-510.0 1.0 10 1,2-Dichloropropane ND ug/L 10/12/23 08:40 78-87-510.0 1.4 10 cis-1,3-Dichloropropene ND ug/L 10/12/23 08:40 10061-01-510.0 0.90 10 trans-1,3-Dichloropropene ND ug/L 10/12/23 08:40 10061-02-610.0 1.3 10 Diisopropyl ether ND ug/L 10/12/23 08:40 108-20-310.0 0.72 10 Ethylbenzene 826 ug/L 10/12/23 08:40 100-41-410.0 0.81 10 Methylene Chloride ND ug/L 10/12/23 08:40 75-09-220.0 18.9 10 Methyl-tert-butyl ether ND ug/L 10/12/23 08:40 1634-04-410.0 0.53 10 Naphthalene 441 ug/L 10/12/23 08:40 91-20-320.0 1.0 10 1,1,2,2-Tetrachloroethane ND ug/L 10/12/23 08:40 79-34-510.0 0.74 10 Tetrachloroethene ND ug/L 10/12/23 08:40 127-18-410.0 0.86 10 Toluene 63.9 ug/L 10/12/23 08:40 108-88-310.0 0.90 10 1,1,1-Trichloroethane ND ug/L 10/12/23 08:40 71-55-610.0 1.1 10 1,1,2-Trichloroethane ND ug/L 10/12/23 08:40 79-00-510.0 0.96 10 Trichloroethene ND ug/L 10/12/23 08:40 79-01-610.0 1.7 10 Trichlorofluoromethane ND ug/L 10/12/23 08:40 75-69-410.0 1.4 10 Vinyl chloride ND ug/L 10/12/23 08:40 75-01-410.0 1.5 10 Xylene (Total)2340 ug/L 10/12/23 08:40 1330-20-720.0 0.94 10 m&p-Xylene 1260 ug/L 10/12/23 08:40 179601-23-120.0 0.94 10 o-Xylene 1080 ug/L 10/12/23 08:40 95-47-610.0 1.4 10 Surrogates 4-Bromofluorobenzene (S)95 %10/12/23 08:40 460-00-470-130 10 1,2-Dichloroethane-d4 (S)91 %10/12/23 08:40 17060-07-070-130 10 Toluene-d8 (S)98 %10/12/23 08:40 2037-26-570-130 10 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:MW-2 Lab ID:92692083009 Collected:10/05/23 13:06 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 612 ug/L 10/12/23 07:09 71-43-250.0 3.9 50 Bromodichloromethane ND ug/L 10/12/23 07:09 75-27-450.0 8.5 50 Bromoform ND ug/L 10/12/23 07:09 75-25-250.0 9.8 50 Bromomethane ND ug/L 10/12/23 07:09 74-83-925011.1 50 Carbon tetrachloride ND ug/L 10/12/23 07:09 56-23-550.0 8.4 50 Chlorobenzene ND ug/L 10/12/23 07:09 108-90-750.0 4.2 50 Chloroethane ND ug/L 10/12/23 07:09 75-00-350.0 8.6 50 Chloroform ND ug/L 10/12/23 07:09 67-66-350.0 3.5 50 Chloromethane ND ug/L 10/12/23 07:09 74-87-350.0 8.8 50 Dibromochloromethane ND ug/L 10/12/23 07:09 124-48-150.0 7.4 50 1,2-Dibromoethane (EDB)ND ug/L 10/12/23 07:09 106-93-450.0 7.4 50 1,2-Dichlorobenzene ND ug/L 10/12/23 07:09 95-50-150.0 4.7 50 1,3-Dichlorobenzene ND ug/L 10/12/23 07:09 541-73-150.0 4.9 50 1,4-Dichlorobenzene ND ug/L 10/12/23 07:09 106-46-750.0 4.5 50 Dichlorodifluoromethane ND ug/L 10/12/23 07:09 75-71-850.0 6.2 50 1,1-Dichloroethane ND ug/L 10/12/23 07:09 75-34-350.0 2.8 50 1,2-Dichloroethane ND ug/L 10/12/23 07:09 107-06-250.0 5.3 50 1,1-Dichloroethene ND ug/L 10/12/23 07:09 75-35-450.0 3.9 50 cis-1,2-Dichloroethene ND ug/L 10/12/23 07:09 156-59-250.0 5.6 50 trans-1,2-Dichloroethene ND ug/L 10/12/23 07:09 156-60-550.0 5.0 50 1,2-Dichloropropane ND ug/L 10/12/23 07:09 78-87-550.0 6.8 50 cis-1,3-Dichloropropene ND ug/L 10/12/23 07:09 10061-01-550.0 4.5 50 trans-1,3-Dichloropropene ND ug/L 10/12/23 07:09 10061-02-650.0 6.6 50 Diisopropyl ether 68.2 ug/L 10/12/23 07:09 108-20-350.0 3.6 50 Ethylbenzene 120 ug/L 10/12/23 07:09 100-41-450.0 4.1 50 Methylene Chloride ND ug/L 10/12/23 07:09 75-09-210094.5 50 Methyl-tert-butyl ether 7210 ug/L 10/12/23 07:09 1634-04-450.0 2.7 50 Naphthalene 540 ug/L 10/12/23 07:09 91-20-31005.0 50 1,1,2,2-Tetrachloroethane ND ug/L 10/12/23 07:09 79-34-550.0 3.7 50 Tetrachloroethene ND ug/L 10/12/23 07:09 127-18-450.0 4.3 50 Toluene 36.1J ug/L 10/12/23 07:09 108-88-350.0 4.5 50 1,1,1-Trichloroethane ND ug/L 10/12/23 07:09 71-55-650.0 5.4 50 1,1,2-Trichloroethane ND ug/L 10/12/23 07:09 79-00-550.0 4.8 50 Trichloroethene ND ug/L 10/12/23 07:09 79-01-650.0 8.6 50 Trichlorofluoromethane ND ug/L 10/12/23 07:09 75-69-450.0 7.2 50 Vinyl chloride ND ug/L 10/12/23 07:09 75-01-450.0 7.4 50 Xylene (Total)2650 ug/L 10/12/23 07:09 1330-20-71004.7 50 m&p-Xylene 1340 ug/L 10/12/23 07:09 179601-23-11004.7 50 o-Xylene 1320 ug/L 10/12/23 07:09 95-47-650.0 7.2 50 Surrogates 4-Bromofluorobenzene (S)96 %10/12/23 07:09 460-00-470-130 50 1,2-Dichloroethane-d4 (S)94 %10/12/23 07:09 17060-07-070-130 50 Toluene-d8 (S)100 %10/12/23 07:09 2037-26-570-130 50 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:MW-13 Lab ID:92692083010 Collected:10/05/23 13:26 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 221 ug/L 10/12/23 07:28 71-43-250.0 3.9 50 Bromodichloromethane ND ug/L 10/12/23 07:28 75-27-450.0 8.5 50 Bromoform ND ug/L 10/12/23 07:28 75-25-250.0 9.8 50 Bromomethane ND ug/L 10/12/23 07:28 74-83-925011.1 50 Carbon tetrachloride ND ug/L 10/12/23 07:28 56-23-550.0 8.4 50 Chlorobenzene ND ug/L 10/12/23 07:28 108-90-750.0 4.2 50 Chloroethane ND ug/L 10/12/23 07:28 75-00-350.0 8.6 50 Chloroform ND ug/L 10/12/23 07:28 67-66-350.0 3.5 50 Chloromethane ND ug/L 10/12/23 07:28 74-87-350.0 8.8 50 Dibromochloromethane ND ug/L 10/12/23 07:28 124-48-150.0 7.4 50 1,2-Dibromoethane (EDB)ND ug/L 10/12/23 07:28 106-93-450.0 7.4 50 1,2-Dichlorobenzene ND ug/L 10/12/23 07:28 95-50-150.0 4.7 50 1,3-Dichlorobenzene ND ug/L 10/12/23 07:28 541-73-150.0 4.9 50 1,4-Dichlorobenzene ND ug/L 10/12/23 07:28 106-46-750.0 4.5 50 Dichlorodifluoromethane ND ug/L 10/12/23 07:28 75-71-850.0 6.2 50 1,1-Dichloroethane ND ug/L 10/12/23 07:28 75-34-350.0 2.8 50 1,2-Dichloroethane ND ug/L 10/12/23 07:28 107-06-250.0 5.3 50 1,1-Dichloroethene ND ug/L 10/12/23 07:28 75-35-450.0 3.9 50 cis-1,2-Dichloroethene ND ug/L 10/12/23 07:28 156-59-250.0 5.6 50 trans-1,2-Dichloroethene ND ug/L 10/12/23 07:28 156-60-550.0 5.0 50 1,2-Dichloropropane ND ug/L 10/12/23 07:28 78-87-550.0 6.8 50 cis-1,3-Dichloropropene ND ug/L 10/12/23 07:28 10061-01-550.0 4.5 50 trans-1,3-Dichloropropene ND ug/L 10/12/23 07:28 10061-02-650.0 6.6 50 Diisopropyl ether ND ug/L 10/12/23 07:28 108-20-350.0 3.6 50 Ethylbenzene 2560 ug/L 10/12/23 07:28 100-41-450.0 4.1 50 Methylene Chloride ND ug/L 10/12/23 07:28 75-09-210094.5 50 Methyl-tert-butyl ether 406 ug/L 10/12/23 07:28 1634-04-450.0 2.7 50 Naphthalene 1170 ug/L 10/12/23 07:28 91-20-31005.0 50 1,1,2,2-Tetrachloroethane ND ug/L 10/12/23 07:28 79-34-550.0 3.7 50 Tetrachloroethene ND ug/L 10/12/23 07:28 127-18-450.0 4.3 50 Toluene 1800 ug/L 10/12/23 07:28 108-88-350.0 4.5 50 1,1,1-Trichloroethane ND ug/L 10/12/23 07:28 71-55-650.0 5.4 50 1,1,2-Trichloroethane ND ug/L 10/12/23 07:28 79-00-550.0 4.8 50 Trichloroethene ND ug/L 10/12/23 07:28 79-01-650.0 8.6 50 Trichlorofluoromethane ND ug/L 10/12/23 07:28 75-69-450.0 7.2 50 Vinyl chloride ND ug/L 10/12/23 07:28 75-01-450.0 7.4 50 Xylene (Total)12800 ug/L 10/12/23 07:28 1330-20-71004.7 50 m&p-Xylene 5940 ug/L 10/12/23 07:28 179601-23-11004.7 50 o-Xylene 6880 ug/L 10/12/23 07:28 95-47-650.0 7.2 50 Surrogates 4-Bromofluorobenzene (S)96 %10/12/23 07:28 460-00-470-130 50 1,2-Dichloroethane-d4 (S)93 %10/12/23 07:28 17060-07-070-130 50 Toluene-d8 (S)99 %10/12/23 07:28 2037-26-570-130 50 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:MW-14 Lab ID:92692083011 Collected:10/05/23 13:49 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 2260 ug/L 10/15/23 20:40 71-43-220015.7 200 Bromodichloromethane ND ug/L 10/15/23 20:40 75-27-420034.0 200 Bromoform ND ug/L 10/15/23 20:40 75-25-220039.4 200 Bromomethane ND ug/L 10/15/23 20:40 74-83-9100044.4 200 Carbon tetrachloride ND ug/L 10/15/23 20:40 56-23-520033.8 200 Chlorobenzene ND ug/L 10/15/23 20:40 108-90-720016.9 200 Chloroethane ND ug/L 10/15/23 20:40 75-00-320034.6 200 Chloroform ND ug/L 10/15/23 20:40 67-66-320013.8 200 Chloromethane ND ug/L 10/15/23 20:40 74-87-320035.0 200 Dibromochloromethane ND ug/L 10/15/23 20:40 124-48-120029.6 200 1,2-Dibromoethane (EDB)ND ug/L 10/15/23 20:40 106-93-420029.4 200 1,2-Dichlorobenzene ND ug/L 10/15/23 20:40 95-50-120018.8 200 1,3-Dichlorobenzene ND ug/L 10/15/23 20:40 541-73-120019.6 200 1,4-Dichlorobenzene ND ug/L 10/15/23 20:40 106-46-720017.9 200 Dichlorodifluoromethane ND ug/L 10/15/23 20:40 75-71-820024.6 200 1,1-Dichloroethane ND ug/L 10/15/23 20:40 75-34-320011.2 200 1,2-Dichloroethane ND ug/L 10/15/23 20:40 107-06-220021.2 200 1,1-Dichloroethene ND ug/L 10/15/23 20:40 75-35-420015.7 200 cis-1,2-Dichloroethene ND ug/L 10/15/23 20:40 156-59-220022.2 200 trans-1,2-Dichloroethene ND ug/L 10/15/23 20:40 156-60-520020.2 200 1,2-Dichloropropane ND ug/L 10/15/23 20:40 78-87-520027.2 200 cis-1,3-Dichloropropene ND ug/L 10/15/23 20:40 10061-01-520017.9 200 trans-1,3-Dichloropropene ND ug/L 10/15/23 20:40 10061-02-620026.4 200 Diisopropyl ether 57.6J ug/L 10/15/23 20:40 108-20-320014.5 200 Ethylbenzene 3640 ug/L 10/15/23 20:40 100-41-420016.2 200 Methylene Chloride ND ug/L 10/15/23 20:40 75-09-2400378200 Methyl-tert-butyl ether 5060 ug/L 10/15/23 20:40 1634-04-420010.7 200 Naphthalene 898 ug/L 10/15/23 20:40 91-20-340020.2 200 1,1,2,2-Tetrachloroethane ND ug/L 10/15/23 20:40 79-34-520014.8 200 Tetrachloroethene ND ug/L 10/15/23 20:40 127-18-420017.1 200 Toluene 35400 ug/L 10/15/23 20:40 108-88-320018.0 200 1,1,1-Trichloroethane ND ug/L 10/15/23 20:40 71-55-620021.4 200 1,1,2-Trichloroethane ND ug/L 10/15/23 20:40 79-00-520019.1 200 Trichloroethene ND ug/L 10/15/23 20:40 79-01-620034.2 200 Trichlorofluoromethane ND ug/L 10/15/23 20:40 75-69-420028.8 200 Vinyl chloride ND ug/L 10/15/23 20:40 75-01-420029.8 200 Xylene (Total)20000 ug/L 10/15/23 20:40 1330-20-740018.7 200 m&p-Xylene 13200 ug/L 10/15/23 20:40 179601-23-140018.7 200 o-Xylene 6810 ug/L 10/15/23 20:40 95-47-620028.8 200 Surrogates 4-Bromofluorobenzene (S)95 %10/15/23 20:40 460-00-470-130 200 1,2-Dichloroethane-d4 (S)100 %10/15/23 20:40 17060-07-070-130 200 Toluene-d8 (S)103 %10/15/23 20:40 2037-26-570-130 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:DMW-1 Lab ID:92692083012 Collected:10/05/23 14:21 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene 2.7J ug/L 10/12/23 06:33 71-43-225.0 2.0 25 Bromodichloromethane ND ug/L 10/12/23 06:33 75-27-425.0 4.2 25 Bromoform ND ug/L 10/12/23 06:33 75-25-225.0 4.9 25 Bromomethane ND ug/L 10/12/23 06:33 74-83-91255.6 25 Carbon tetrachloride ND ug/L 10/12/23 06:33 56-23-525.0 4.2 25 Chlorobenzene ND ug/L 10/12/23 06:33 108-90-725.0 2.1 25 Chloroethane ND ug/L 10/12/23 06:33 75-00-325.0 4.3 25 Chloroform ND ug/L 10/12/23 06:33 67-66-325.0 1.7 25 Chloromethane ND ug/L 10/12/23 06:33 74-87-325.0 4.4 25 Dibromochloromethane ND ug/L 10/12/23 06:33 124-48-125.0 3.7 25 1,2-Dibromoethane (EDB)ND ug/L 10/12/23 06:33 106-93-425.0 3.7 25 1,2-Dichlorobenzene ND ug/L 10/12/23 06:33 95-50-125.0 2.4 25 1,3-Dichlorobenzene ND ug/L 10/12/23 06:33 541-73-125.0 2.4 25 1,4-Dichlorobenzene ND ug/L 10/12/23 06:33 106-46-725.0 2.2 25 Dichlorodifluoromethane ND ug/L 10/12/23 06:33 75-71-825.0 3.1 25 1,1-Dichloroethane ND ug/L 10/12/23 06:33 75-34-325.0 1.4 25 1,2-Dichloroethane 216 ug/L 10/12/23 06:33 107-06-225.0 2.6 25 1,1-Dichloroethene ND ug/L 10/12/23 06:33 75-35-425.0 2.0 25 cis-1,2-Dichloroethene ND ug/L 10/12/23 06:33 156-59-225.0 2.8 25 trans-1,2-Dichloroethene ND ug/L 10/12/23 06:33 156-60-525.0 2.5 25 1,2-Dichloropropane ND ug/L 10/12/23 06:33 78-87-525.0 3.4 25 cis-1,3-Dichloropropene ND ug/L 10/12/23 06:33 10061-01-525.0 2.2 25 trans-1,3-Dichloropropene ND ug/L 10/12/23 06:33 10061-02-625.0 3.3 25 Diisopropyl ether 233 ug/L 10/12/23 06:33 108-20-325.0 1.8 25 Ethylbenzene ND ug/L 10/12/23 06:33 100-41-425.0 2.0 25 Methylene Chloride ND ug/L 10/12/23 06:33 75-09-250.0 47.2 25 Methyl-tert-butyl ether 4100 ug/L 10/12/23 06:33 1634-04-425.0 1.3 25 Naphthalene ND ug/L 10/12/23 06:33 91-20-350.0 2.5 25 1,1,2,2-Tetrachloroethane ND ug/L 10/12/23 06:33 79-34-525.0 1.8 25 Tetrachloroethene ND ug/L 10/12/23 06:33 127-18-425.0 2.1 25 Toluene ND ug/L 10/12/23 06:33 108-88-325.0 2.2 25 1,1,1-Trichloroethane ND ug/L 10/12/23 06:33 71-55-625.0 2.7 25 1,1,2-Trichloroethane ND ug/L 10/12/23 06:33 79-00-525.0 2.4 25 Trichloroethene ND ug/L 10/12/23 06:33 79-01-625.0 4.3 25 Trichlorofluoromethane ND ug/L 10/12/23 06:33 75-69-425.0 3.6 25 Vinyl chloride ND ug/L 10/12/23 06:33 75-01-425.0 3.7 25 Xylene (Total)ND ug/L 10/12/23 06:33 1330-20-750.0 2.3 25 m&p-Xylene ND ug/L 10/12/23 06:33 179601-23-150.0 2.3 25 o-Xylene ND ug/L 10/12/23 06:33 95-47-625.0 3.6 25 Surrogates 4-Bromofluorobenzene (S)96 %10/12/23 06:33 460-00-470-130 25 1,2-Dichloroethane-d4 (S)97 %10/12/23 06:33 17060-07-070-130 25 Toluene-d8 (S)100 %10/12/23 06:33 2037-26-570-130 25 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 32 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92692083 HOT SPOT #6006 Sample:TRIP BLANK Lab ID:92692083013 Collected:10/05/23 00:00 Received:10/05/23 15:40 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B Pace Analytical Services - Charlotte 601/602 Volatiles by SM 6200 Benzene ND ug/L 10/12/23 05:02 71-43-21.0 0.079 1 Bromodichloromethane ND ug/L 10/12/23 05:02 75-27-41.0 0.17 1 Bromoform ND ug/L 10/12/23 05:02 75-25-21.0 0.20 1 Bromomethane ND ug/L 10/12/23 05:02 74-83-95.0 0.22 1 Carbon tetrachloride ND ug/L 10/12/23 05:02 56-23-51.0 0.17 1 Chlorobenzene ND ug/L 10/12/23 05:02 108-90-71.0 0.085 1 Chloroethane ND ug/L 10/12/23 05:02 75-00-31.0 0.17 1 Chloroform ND ug/L 10/12/23 05:02 67-66-31.0 0.069 1 Chloromethane ND ug/L 10/12/23 05:02 74-87-31.0 0.18 1 Dibromochloromethane ND ug/L 10/12/23 05:02 124-48-11.0 0.15 1 1,2-Dibromoethane (EDB)ND ug/L 10/12/23 05:02 106-93-41.0 0.15 1 1,2-Dichlorobenzene ND ug/L 10/12/23 05:02 95-50-11.0 0.094 1 1,3-Dichlorobenzene ND ug/L 10/12/23 05:02 541-73-11.0 0.098 1 1,4-Dichlorobenzene ND ug/L 10/12/23 05:02 106-46-71.0 0.090 1 Dichlorodifluoromethane ND ug/L 10/12/23 05:02 75-71-81.0 0.12 1 1,1-Dichloroethane ND ug/L 10/12/23 05:02 75-34-31.0 0.056 1 1,2-Dichloroethane ND ug/L 10/12/23 05:02 107-06-21.0 0.11 1 1,1-Dichloroethene ND ug/L 10/12/23 05:02 75-35-41.0 0.079 1 cis-1,2-Dichloroethene ND ug/L 10/12/23 05:02 156-59-21.0 0.11 1 trans-1,2-Dichloroethene ND ug/L 10/12/23 05:02 156-60-51.0 0.10 1 1,2-Dichloropropane ND ug/L 10/12/23 05:02 78-87-51.0 0.14 1 cis-1,3-Dichloropropene ND ug/L 10/12/23 05:02 10061-01-51.0 0.090 1 trans-1,3-Dichloropropene ND ug/L 10/12/23 05:02 10061-02-61.0 0.13 1 Diisopropyl ether ND ug/L 10/12/23 05:02 108-20-31.0 0.072 1 Ethylbenzene ND ug/L 10/12/23 05:02 100-41-41.0 0.081 1 Methylene Chloride ND ug/L 10/12/23 05:02 75-09-22.0 1.9 1 Methyl-tert-butyl ether ND ug/L 10/12/23 05:02 1634-04-41.0 0.053 1 Naphthalene ND ug/L 10/12/23 05:02 91-20-32.0 0.10 1 1,1,2,2-Tetrachloroethane ND ug/L 10/12/23 05:02 79-34-51.0 0.074 1 Tetrachloroethene ND ug/L 10/12/23 05:02 127-18-41.0 0.086 1 Toluene ND ug/L 10/12/23 05:02 108-88-31.0 0.090 1 1,1,1-Trichloroethane ND ug/L 10/12/23 05:02 71-55-61.0 0.11 1 1,1,2-Trichloroethane ND ug/L 10/12/23 05:02 79-00-51.0 0.096 1 Trichloroethene ND ug/L 10/12/23 05:02 79-01-61.0 0.17 1 Trichlorofluoromethane ND ug/L 10/12/23 05:02 75-69-41.0 0.14 1 Vinyl chloride ND ug/L 10/12/23 05:02 75-01-41.0 0.15 1 Xylene (Total)ND ug/L 10/12/23 05:02 1330-20-72.0 0.094 1 m&p-Xylene ND ug/L 10/12/23 05:02 179601-23-12.0 0.094 1 o-Xylene ND ug/L 10/12/23 05:02 95-47-61.0 0.14 1 Surrogates 4-Bromofluorobenzene (S)96 %10/12/23 05:02 460-00-470-130 1 1,2-Dichloroethane-d4 (S)97 %10/12/23 05:02 17060-07-070-130 1 Toluene-d8 (S)98 %10/12/23 05:02 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92692083 HOT SPOT #6006 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 805645 SM 6200B SM 6200B 601/602 Volatiles by SM 6200 Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92692083001, 92692083005, 92692083006, 92692083008, 92692083009, 92692083010, 92692083012, 92692083013 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4171838 Associated Lab Samples:92692083001, 92692083005, 92692083006, 92692083008, 92692083009, 92692083010, 92692083012, 92692083013 Matrix:Water AnalyzedMDL 1,1,1-Trichloroethane ug/L ND 1.0 10/12/23 01:420.11 1,1,2,2-Tetrachloroethane ug/L ND 1.0 10/12/23 01:420.074 1,1,2-Trichloroethane ug/L ND 1.0 10/12/23 01:420.096 1,1-Dichloroethane ug/L ND 1.0 10/12/23 01:420.056 1,1-Dichloroethene ug/L ND 1.0 10/12/23 01:420.079 1,2-Dibromoethane (EDB)ug/L ND 1.0 10/12/23 01:420.15 1,2-Dichlorobenzene ug/L ND 1.0 10/12/23 01:420.094 1,2-Dichloroethane ug/L ND 1.0 10/12/23 01:420.11 1,2-Dichloropropane ug/L ND 1.0 10/12/23 01:420.14 1,3-Dichlorobenzene ug/L ND 1.0 10/12/23 01:420.098 1,4-Dichlorobenzene ug/L ND 1.0 10/12/23 01:420.090 Benzene ug/L ND 1.0 10/12/23 01:420.079 Bromodichloromethane ug/L ND 1.0 10/12/23 01:420.17 Bromoform ug/L ND 1.0 10/12/23 01:420.20 Bromomethane ug/L ND 5.0 10/12/23 01:420.22 Carbon tetrachloride ug/L ND 1.0 10/12/23 01:420.17 Chlorobenzene ug/L ND 1.0 10/12/23 01:420.085 Chloroethane ug/L ND 1.0 10/12/23 01:420.17 Chloroform ug/L ND 1.0 10/12/23 01:420.069 Chloromethane ug/L ND 1.0 10/12/23 01:420.18 cis-1,2-Dichloroethene ug/L ND 1.0 10/12/23 01:420.11 cis-1,3-Dichloropropene ug/L ND 1.0 10/12/23 01:420.090 Dibromochloromethane ug/L ND 1.0 10/12/23 01:420.15 Dichlorodifluoromethane ug/L ND 1.0 10/12/23 01:420.12 Diisopropyl ether ug/L ND 1.0 10/12/23 01:420.072 Ethylbenzene ug/L ND 1.0 10/12/23 01:420.081 m&p-Xylene ug/L ND 2.0 10/12/23 01:420.094 Methyl-tert-butyl ether ug/L ND 1.0 10/12/23 01:420.053 Methylene Chloride ug/L ND 2.0 10/12/23 01:421.9 Naphthalene ug/L ND 2.0 10/12/23 01:420.10 o-Xylene ug/L ND 1.0 10/12/23 01:420.14 Tetrachloroethene ug/L ND 1.0 10/12/23 01:420.086 Toluene ug/L ND 1.0 10/12/23 01:420.090 trans-1,2-Dichloroethene ug/L ND 1.0 10/12/23 01:420.10 trans-1,3-Dichloropropene ug/L ND 1.0 10/12/23 01:420.13 Trichloroethene ug/L ND 1.0 10/12/23 01:420.17 Trichlorofluoromethane ug/L ND 1.0 10/12/23 01:420.14 Vinyl chloride ug/L ND 1.0 10/12/23 01:420.15 Xylene (Total)ug/L ND 2.0 10/12/23 01:420.094 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92692083 HOT SPOT #6006 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4171838 Associated Lab Samples:92692083001, 92692083005, 92692083006, 92692083008, 92692083009, 92692083010, 92692083012, 92692083013 Matrix:Water AnalyzedMDL 1,2-Dichloroethane-d4 (S)%95 70-130 10/12/23 01:42 4-Bromofluorobenzene (S)%96 70-130 10/12/23 01:42 Toluene-d8 (S)%99 70-130 10/12/23 01:42 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4171839LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1-Trichloroethane ug/L 18.520 92 60-140 1,1,2,2-Tetrachloroethane ug/L 20.820 104 60-140 1,1,2-Trichloroethane ug/L 20.720 103 60-140 1,1-Dichloroethane ug/L 18.520 93 60-140 1,1-Dichloroethene ug/L 19.020 95 60-140 1,2-Dibromoethane (EDB)ug/L 20.720 104 60-140 1,2-Dichlorobenzene ug/L 20.220 101 60-140 1,2-Dichloroethane ug/L 18.920 95 60-140 1,2-Dichloropropane ug/L 20.520 102 60-140 1,3-Dichlorobenzene ug/L 19.720 98 60-140 1,4-Dichlorobenzene ug/L 19.720 99 60-140 Benzene ug/L 19.320 96 60-140 Bromodichloromethane ug/L 19.420 97 60-140 Bromoform ug/L 20.820 104 60-140 Bromomethane ug/L 15.620 78 60-140 Carbon tetrachloride ug/L 20.320 101 60-140 Chlorobenzene ug/L 19.520 98 60-140 Chloroethane ug/L 17.720 89 60-140 Chloroform ug/L 18.220 91 60-140 Chloromethane ug/L 17.520 87 60-140 cis-1,2-Dichloroethene ug/L 18.720 93 60-140 cis-1,3-Dichloropropene ug/L 19.220 96 60-140 Dibromochloromethane ug/L 20.120 101 60-140 Dichlorodifluoromethane ug/L 20.420 102 60-140 Diisopropyl ether ug/L 18.220 91 60-140 Ethylbenzene ug/L 19.020 95 60-140 m&p-Xylene ug/L 37.340 93 60-140 Methyl-tert-butyl ether ug/L 17.320 87 60-140 Methylene Chloride ug/L 18.720 94 60-140 Naphthalene ug/L 19.820 99 60-140 o-Xylene ug/L 19.320 96 60-140 Tetrachloroethene ug/L 20.020 100 60-140 Toluene ug/L 19.320 96 60-140 trans-1,2-Dichloroethene ug/L 18.520 93 60-140 trans-1,3-Dichloropropene ug/L 19.620 98 60-140 Trichloroethene ug/L 19.820 99 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92692083 HOT SPOT #6006 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4171839LABORATORY CONTROL SAMPLE: LCSSpike Trichlorofluoromethane ug/L 17.920 90 60-140 Vinyl chloride ug/L 16.120 80 60-140 Xylene (Total)ug/L 56.660 94 60-140 1,2-Dichloroethane-d4 (S)%94 70-130 4-Bromofluorobenzene (S)%98 70-130 Toluene-d8 (S)%101 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4171840MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92692083001 4171841 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1-Trichloroethane ug/L 20 121 60-140120 1 3020ND24.2 23.9 1,1,2,2-Tetrachloroethane ug/L 20 112 60-140111 1 3020ND22.5 22.2 1,1,2-Trichloroethane ug/L 20 118 60-140114 3 3020ND23.5 22.8 1,1-Dichloroethane ug/L 20 114 60-140111 2 3020ND22.7 22.3 1,1-Dichloroethene ug/L 20 123 60-140120 2 3020ND24.6 24.1 1,2-Dibromoethane (EDB)ug/L 20 117 60-140114 3 3020ND23.4 22.8 1,2-Dichlorobenzene ug/L 20 120 60-140118 2 3020ND24.0 23.6 1,2-Dichloroethane ug/L 20 117 60-140116 1 3020ND23.3 23.2 1,2-Dichloropropane ug/L 20 121 60-140118 3 3020ND24.3 23.6 1,3-Dichlorobenzene ug/L 20 121 60-140119 2 3020ND24.1 23.7 1,4-Dichlorobenzene ug/L 20 119 60-140115 3 3020ND23.7 23.0 Benzene ug/L 20 118 60-140116 2 3020ND23.5 23.1 Bromodichloromethane ug/L 20 116 60-140114 2 3020ND23.3 22.9 Bromoform ug/L 20 108 60-140105 2 3020ND21.6 21.1 Bromomethane ug/L 20 103 60-140105 2 3020ND20.6 21.1 Carbon tetrachloride ug/L 20 123 60-140122 1 3020ND24.6 24.3 Chlorobenzene ug/L 20 115 60-140114 1 3020ND23.1 22.8 Chloroethane ug/L 20 115 60-140113 2 3020ND23.1 22.6 Chloroform ug/L 20 117 60-140113 3 3020ND23.4 22.6 Chloromethane ug/L 20 98 60-14096 3 3020ND19.6 19.1 cis-1,2-Dichloroethene ug/L 20 114 60-140113 1 3020ND22.8 22.7 cis-1,3-Dichloropropene ug/L 20 112 60-140111 1 3020ND22.5 22.2 Dibromochloromethane ug/L 20 115 60-140111 4 3020ND23.0 22.2 Dichlorodifluoromethane ug/L 20 137 60-140134 2 3020ND27.4 26.9 Diisopropyl ether ug/L 20 103 60-14099 4 3020ND20.6 19.7 Ethylbenzene ug/L 20 114 60-140115 1 3020ND22.8 22.9 m&p-Xylene ug/L 40 110 60-140111 1 3040ND44.2 44.5 Methyl-tert-butyl ether ug/L 20 91 60-14086 6 3020ND18.2 17.3 Methylene Chloride ug/L 20 113 60-140110 2 3020ND22.7 22.2 Naphthalene ug/L 20 118 60-140111 6 3020ND23.5 22.3 o-Xylene ug/L 20 112 60-140112 0 3020ND22.3 22.4 Tetrachloroethene ug/L 20 113 60-140113 0 3020ND22.5 22.5 Toluene ug/L 20 112 60-140110 1 3020ND22.4 22.1 trans-1,2-Dichloroethene ug/L 20 114 60-140111 2 3020ND22.7 22.3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92692083 HOT SPOT #6006 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4171840MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92692083001 4171841 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. trans-1,3-Dichloropropene ug/L 20 113 60-140108 4 3020ND22.6 21.7 Trichloroethene ug/L 20 127 60-140122 4 3020ND25.4 24.4 Trichlorofluoromethane ug/L 20 128 60-140125 3 3020ND25.6 24.9 Vinyl chloride ug/L 20 96 60-14094 1 3020ND19.1 18.9 Xylene (Total)ug/L 60 111 60-140112 1 3060ND66.5 66.9 1,2-Dichloroethane-d4 (S)%104 70-130103 4-Bromofluorobenzene (S)%98 70-13098 Toluene-d8 (S)%101 70-130102 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92692083 HOT SPOT #6006 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 806493 SM 6200B SM 6200B 601/602 Volatiles by SM 6200 Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92692083002, 92692083003, 92692083004, 92692083007, 92692083011 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4176226 Associated Lab Samples:92692083002, 92692083003, 92692083004, 92692083007, 92692083011 Matrix:Water AnalyzedMDL 1,1,1-Trichloroethane ug/L ND 1.0 10/15/23 12:480.11 1,1,2,2-Tetrachloroethane ug/L ND 1.0 10/15/23 12:480.074 1,1,2-Trichloroethane ug/L ND 1.0 10/15/23 12:480.096 1,1-Dichloroethane ug/L ND 1.0 10/15/23 12:480.056 1,1-Dichloroethene ug/L ND 1.0 10/15/23 12:480.079 1,2-Dibromoethane (EDB)ug/L ND 1.0 10/15/23 12:480.15 1,2-Dichlorobenzene ug/L ND 1.0 10/15/23 12:480.094 1,2-Dichloroethane ug/L ND 1.0 10/15/23 12:480.11 1,2-Dichloropropane ug/L ND 1.0 10/15/23 12:480.14 1,3-Dichlorobenzene ug/L ND 1.0 10/15/23 12:480.098 1,4-Dichlorobenzene ug/L ND 1.0 10/15/23 12:480.090 Benzene ug/L ND 1.0 10/15/23 12:480.079 Bromodichloromethane ug/L ND 1.0 10/15/23 12:480.17 Bromoform ug/L ND 1.0 10/15/23 12:480.20 Bromomethane ug/L ND 5.0 10/15/23 12:480.22 Carbon tetrachloride ug/L ND 1.0 10/15/23 12:480.17 Chlorobenzene ug/L ND 1.0 10/15/23 12:480.085 Chloroethane ug/L ND 1.0 10/15/23 12:480.17 Chloroform ug/L ND 1.0 10/15/23 12:480.069 Chloromethane ug/L ND 1.0 10/15/23 12:480.18 cis-1,2-Dichloroethene ug/L ND 1.0 10/15/23 12:480.11 cis-1,3-Dichloropropene ug/L ND 1.0 10/15/23 12:480.090 Dibromochloromethane ug/L ND 1.0 10/15/23 12:480.15 Dichlorodifluoromethane ug/L ND 1.0 10/15/23 12:480.12 Diisopropyl ether ug/L ND 1.0 10/15/23 12:480.072 Ethylbenzene ug/L ND 1.0 10/15/23 12:480.081 m&p-Xylene ug/L ND 2.0 10/15/23 12:480.094 Methyl-tert-butyl ether ug/L ND 1.0 10/15/23 12:480.053 Methylene Chloride ug/L ND 2.0 10/15/23 12:481.9 Naphthalene ug/L ND 2.0 10/15/23 12:480.10 o-Xylene ug/L ND 1.0 10/15/23 12:480.14 Tetrachloroethene ug/L ND 1.0 10/15/23 12:480.086 Toluene ug/L ND 1.0 10/15/23 12:480.090 trans-1,2-Dichloroethene ug/L ND 1.0 10/15/23 12:480.10 trans-1,3-Dichloropropene ug/L ND 1.0 10/15/23 12:480.13 Trichloroethene ug/L ND 1.0 10/15/23 12:480.17 Trichlorofluoromethane ug/L ND 1.0 10/15/23 12:480.14 Vinyl chloride ug/L ND 1.0 10/15/23 12:480.15 Xylene (Total)ug/L ND 2.0 10/15/23 12:480.094 1,2-Dichloroethane-d4 (S)%103 70-130 10/15/23 12:48 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92692083 HOT SPOT #6006 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4176226 Associated Lab Samples:92692083002, 92692083003, 92692083004, 92692083007, 92692083011 Matrix:Water AnalyzedMDL 4-Bromofluorobenzene (S)%98 70-130 10/15/23 12:48 Toluene-d8 (S)%108 70-130 10/15/23 12:48 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4176227LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1-Trichloroethane ug/L 20.320 102 60-140 1,1,2,2-Tetrachloroethane ug/L 20.020 100 60-140 1,1,2-Trichloroethane ug/L 20.120 101 60-140 1,1-Dichloroethane ug/L 19.420 97 60-140 1,1-Dichloroethene ug/L 20.520 103 60-140 1,2-Dibromoethane (EDB)ug/L 21.120 105 60-140 1,2-Dichlorobenzene ug/L 21.220 106 60-140 1,2-Dichloroethane ug/L 20.320 101 60-140 1,2-Dichloropropane ug/L 20.720 104 60-140 1,3-Dichlorobenzene ug/L 21.420 107 60-140 1,4-Dichlorobenzene ug/L 20.920 105 60-140 Benzene ug/L 20.120 101 60-140 Bromodichloromethane ug/L 19.920 99 60-140 Bromoform ug/L 19.820 99 60-140 Bromomethane ug/L 16.920 85 60-140 Carbon tetrachloride ug/L 20.720 104 60-140 Chlorobenzene ug/L 20.020 100 60-140 Chloroethane ug/L 20.220 101 60-140 Chloroform ug/L 19.420 97 60-140 Chloromethane ug/L 18.120 90 60-140 cis-1,2-Dichloroethene ug/L 19.420 97 60-140 cis-1,3-Dichloropropene ug/L 20.120 100 60-140 Dibromochloromethane ug/L 20.220 101 60-140 Dichlorodifluoromethane ug/L 24.420 122 60-140 Diisopropyl ether ug/L 18.120 90 60-140 Ethylbenzene ug/L 19.720 98 60-140 m&p-Xylene ug/L 38.640 97 60-140 Methyl-tert-butyl ether ug/L 16.420 82 60-140 Methylene Chloride ug/L 19.820 99 60-140 Naphthalene ug/L 20.920 105 60-140 o-Xylene ug/L 19.620 98 60-140 Tetrachloroethene ug/L 20.020 100 60-140 Toluene ug/L 18.920 95 60-140 trans-1,2-Dichloroethene ug/L 19.320 97 60-140 trans-1,3-Dichloropropene ug/L 19.720 99 60-140 Trichloroethene ug/L 21.420 107 60-140 Trichlorofluoromethane ug/L 21.520 108 60-140 Vinyl chloride ug/L 16.820 84 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92692083 HOT SPOT #6006 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4176227LABORATORY CONTROL SAMPLE: LCSSpike Xylene (Total)ug/L 58.260 97 60-140 1,2-Dichloroethane-d4 (S)%102 70-130 4-Bromofluorobenzene (S)%98 70-130 Toluene-d8 (S)%100 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4176228MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92692308001 4176229 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1-Trichloroethane ug/L M12012660-140148 16 3020ND25.2 29.5 1,1,2,2-Tetrachloroethane ug/L 20 114 60-140129 12 3020ND22.8 25.7 1,1,2-Trichloroethane ug/L 20 114 60-140130 14 3020ND22.7 26.0 1,1-Dichloroethane ug/L M12012660-140146 15 3020ND25.1 29.2 1,1-Dichloroethene ug/L M12013860-140158 14 3020ND27.5 31.6 1,2-Dibromoethane (EDB)ug/L 20 115 60-140133 15 3020ND23.0 26.6 1,2-Dichlorobenzene ug/L 20 116 60-140131 12 3020ND23.2 26.2 1,2-Dichloroethane ug/L 20 120 60-140139 14 3020ND24.1 27.8 1,2-Dichloropropane ug/L M12012060-140141 16 3020ND24.0 28.2 1,3-Dichlorobenzene ug/L 20 115 60-140132 14 3020ND23.0 26.4 1,4-Dichlorobenzene ug/L 20 112 60-140127 12 3020ND22.4 25.3 Benzene ug/L 20 118 60-140137 15 3020ND23.5 27.4 Bromodichloromethane ug/L 20 111 60-140129 15 3020ND22.3 25.8 Bromoform ug/L 20 104 60-140126 19 3020ND20.9 25.2 Bromomethane ug/L 20 93 60-140119 24 3020ND18.7 23.8 Carbon tetrachloride ug/L 20 120 60-140138 14 3020ND23.9 27.6 Chlorobenzene ug/L 20 112 60-140129 14 3020ND22.5 25.9 Chloroethane ug/L M12012460-140149 18 3020ND24.9 29.7 Chloroform ug/L 20 121 60-140138 13 3020ND24.2 27.6 Chloromethane ug/L 20 121 60-140136 12 3020ND24.1 27.1 cis-1,2-Dichloroethene ug/L M12012560-140144 15 3020ND25.0 28.9 cis-1,3-Dichloropropene ug/L 20 116 60-140138 17 3020ND23.2 27.5 Dibromochloromethane ug/L 20 108 60-140130 18 3020ND21.7 26.0 Dichlorodifluoromethane ug/L M12016760-140189 12 3020ND33.4 37.8 Diisopropyl ether ug/L M12012660-140147 16 3020ND25.1 29.4 Ethylbenzene ug/L 20 115 60-140132 14 3020ND23.1 26.4 m&p-Xylene ug/L 40 118 60-140136 14 3040ND47.2 54.4 Methyl-tert-butyl ether ug/L 20 115 60-140134 15 3020ND23.4 27.3 Methylene Chloride ug/L 20 115 60-140133 14 3020ND23.0 26.5 Naphthalene ug/L 20 120 60-140133 10 3020ND24.1 26.6 o-Xylene ug/L 20 117 60-140135 14 3020ND23.4 27.1 Tetrachloroethene ug/L 20 108 60-140122 12 3020ND21.5 24.4 Toluene ug/L 20 111 60-140126 13 3020ND22.2 25.3 trans-1,2-Dichloroethene ug/L 20 117 60-140134 14 3020ND23.4 26.9 trans-1,3-Dichloropropene ug/L 20 115 60-140135 16 3020ND23.1 27.1 Trichloroethene ug/L 20 118 60-140137 15 3020ND23.6 27.4 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 32 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92692083 HOT SPOT #6006 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4176228MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92692308001 4176229 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Trichlorofluoromethane ug/L M12012860-140147 14 3020ND25.5 29.5 Vinyl chloride ug/L 20 115 60-140136 16 3020ND23.1 27.1 Xylene (Total)ug/L 60 118 60-140136 14 3060ND70.6 81.5 1,2-Dichloroethane-d4 (S)%109 70-130107 4-Bromofluorobenzene (S)%103 70-130103 Toluene-d8 (S)%102 70-130101 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 25 of 32 #=QL# QUALIFIERS Pace Project No.: Project: 92692083 HOT SPOT #6006 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Result may be biased high due to carryover from previously analyzed sample.C8 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 26 of 32 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92692083 HOT SPOT #6006 Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92692083001 805645MW-17 SM 6200B 92692083002 806493MW-3R SM 6200B 92692083003 806493DMW-2R SM 6200B 92692083004 806493MW-15 SM 6200B 92692083005 805645DMW-4R SM 6200B 92692083006 805645MW-16 SM 6200B 92692083007 806493MW-9 SM 6200B 92692083008 805645MW-8R SM 6200B 92692083009 805645MW-2 SM 6200B 92692083010 805645MW-13 SM 6200B 92692083011 806493MW-14 SM 6200B 92692083012 805645DMW-1 SM 6200B 92692083013 805645TRIP BLANK SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/17/2023 01:05 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 27 of 32 Pa g e 2 8 o f 3 2 Pa g e 2 9 o f 3 2 Page 30 of 32 Page 31 of 32 Page 32 of 32 Semi-Annual Sampling Report 15 11/1/2023 APPENDIX J Groundwater Modeling and/or Other Calculations (Not Applicable)