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HomeMy WebLinkAboutMO-9109_40591_CA_MRP_20221130f SUBSEQUENT MONITORING REPORT Kingsway #3 — Incident No. 40591 1010 South New Hope Road Gastonia, Gaston County, North Carolina November 30, 2022 Terracon Project No. 71217090 Prepared for: North Carolina Department of Environmental Quality Division of Waste Management Raleigh, North Carolina Prepared by: Terracon Consultants, Inc. Charlotte, North Carolina Irerracon November 30, 2022 Ms. Sharon Ghiold North Carolina Department of Environmental Quality Division of Waste Management Underground Storage Tank Section 1646 Mail Service Center Raleigh, North Carolina 27699 Email: Sharon.ghiold@ncdenr.gov Re: Monitoring Report Kingsway #3 1010 South New Hope Road Gastonia, North Carolina 28054 UST Incident Number: 40591 UST No. MO-9109 Terracon Project No. 71217090 Dear Ms. Ghiold: Terracon Consultants, Inc. (Terracon) is pleased to submit this Monitoring Report for the Kingsway #3 site. This report documents a groundwater monitoring event completed in September 2022 and has been prepared in accordance with North Carolina Department of Environmental Quality (NCDEQ), UST Section Assessment Guidelines dated January 19, 2021, and Task Authorization No. 3, approved on April 21, 2022. If you have any questions regarding this report or the assessment activities, please contact us at 704-509-1777. Sincerely, Terracon Consultants, Inc. Ayla Homer, P.G. Project Geologist Attachments For:M. Neal McElveen, P.E. Principal/ Senior Engineer Terracon Consultants, Inc. 2701 Westport Road Charlotte, NC 28208 [704] 509 1777 terracon.com Table of Contents A. SITE INFORMATION................................................................................................................. 1 B. EXECUTIVE SUMMARY............................................................................................................ 2 C. SITE HISTORY AND CHARACTERIZATION......................................................................... 3 C.1 Site Setting................................................................................................................................................3 C.2 Release Summary......................................................................................................................................3 C.3 Previous Investigations.............................................................................................................................3 C.4 Water Supply Wells...................................................................................................................................6 C.5 Surface Water...........................................................................................................................................6 C.6 Land Use Information................................................................................................................................6 D. ASSESSMENT INFORMATION 6 D.1 Site Geology and Hydrogeology................................................................................................................6 D.2 Sampling Activities....................................................................................................................................7 D.2.1 Free Product Evaluation.....................................................................................................................................7 D.2.2 Groundwater Sampling Activities......................................................................................................................8 D.2.3 Analytical Results.......................................................................................................................................................9 E. CONCLUSIONS AND RECOMMENDATIONS...........................................................10 FIGURES Figure 1: Site Location Map Figure 2: Site Plan Figure 3: Groundwater Elevation Map Figure 4: Groundwater Analytical Results TABLES Table 1: Historical UST Information Table 2: Monitoring Well Construction Information and Historical Groundwater Elevations Table 3: Groundwater Analytical Results Table 4: Historical Groundwater Analytical Results APPENDIX Appendix A: Field Notes and Site Photographs Appendix B: Laboratory Analytical Report Kingsway #3 Gastonia, North Carolina Project Number 71217090 Incident No. 40591 November 30, 2022 Irerracon SUBSEQUENT MONITORING REPORT A. SITE INFORMATION Date of Report: NCDEQ Incident No: Facility ID: Site Name: Site Location: Latitude: Longitude: UST Owner/Operator: November 30, 2022 40591 00-0-0000015806 Kingsway #3 1010 South New Hope Road Gastonia, North Carolina 28054 N 35.2520460 W-81.1455270 Kingsway Enterprises, Inc. 901 North Marietta Road Gastonia, North Carolina 28054 Current Property Owner: Gray Family Properties LTD 2976 Robinwood Road Gastonia, North Carolina 28054 Consultant: Terracon Consultants, Inc. (Contact: Neal McElveen) 2701 Westport Road Charlotte, North Carolina 28208 (704) 509-1777 Laboratory: Pace Analytical (NCDEQ No. 5342) 9800 Kincey Avenue Huntersville, North Carolina 28028 704-875-9092 Release Information: Release Date: Discovered March 1, 2016 Estimated Quantity: Unknown Cause of Release: Leaking UST system Source of Release: Leaking UST system Sizes and contents of UST system(s) where release(s) occurred: Two (2) 6,000-gallon gasoline underground storage tanks (USTs). Responsive Resourceful Reliable 1 Kingsway #3 Gastonia, North Carolina Project Number 71217090 Incident No. 40591 November 30, 2022 Irerracon I, M. Neal McElveen, a Licensed Engineer for Terracon Consultants, Inc., certify that the information in this report is correct and accurate to the best of my knowledge. M. Neal McElveen NC License No. 20699 Terracon Consultants, Inc. is licensed to practice geology/engineering in North Carolina. The certification number of the corporation is F-0869. B. EXECUTIVE SUMMARY Terracon completed this report to present the findings of assessment activities performed at the former Kingsway #3 (the site) on September 22, 2022. The Monitoring Report was prepared in general accordance with the 15A NCAC 2L .0115 regulations and the NCDEQ Underground Storage Tank (UST) Section Guidelines for Assessment and Corrective Action for UST Releases, dated July 15, 2008, revised May 2021, under the supervision of M. Neal McElveen, a North Carolina registered professional engineer (North Carolina License No. 20699). The former Kingsway #3 (Incident No. 40591) is located at 1010 South New Hope Road in Gastonia, Gaston County, North Carolina (Figure 1). The site is comprised of 0.18 acres (Parcel No. 117367) and contains an approximate 1,966-square-foot commercial building that operates as a convenience store. The remaining areas of the site consist of asphalt -paved parking, the former dispenser island canopy, and grassy areas. The on -site contamination is reportedly the result of a leak from an underground storage tank (UST) system associated with the Kingsway gas station, the former occupant of the site. Terracon mobilized to the site on September 22, 2022, to collect groundwater samples from monitoring wells MW-1, MW-2 and MW-4, and recovery well RW-1. The groundwater samples and chain -of -custody documentation were delivered to Pace Analytical Services, Inc. in Huntersville, North Carolina, for analysis of volatile organic compounds (VOCs) by Standard Method 6200B. Results of the recent assessment activities indicate the following: Water supply wells have not been identified within 1,000 feet of the source area and municipal water is available to the site and surrounding areas. Free product was measured in recovery well RW-1 at a thickness of 0.02 feet. VOCs were not detected at concentrations exceeding Gross Contaminant Levels (GCLs). Responsive Resourceful Reliable 2 Kingsway #3 Gastonia, North Carolina Project Number 71217090 Incident No. 40591 November 30, 2022 Irerracon Multiple VOCs were detected at concentrations exceeding their 2L Standards in the groundwater from monitoring wells MW-1, MW-2, and MW-4. The groundwater flow direction is to the east. Compared to historical analytical results, VOC concentrations are generally stable, and any fluctuations are within historical ranges. Previous mobile multi -phase extraction (MMPE) events have been relatively successful at reducing free product immediately downgradient of the former UST basin. Based on the findings of our assessment activities, Terracon offers the following recommendations: Conduct a Mobile Multi -Phase Extraction (MMPE) utilizing recovery well RW-1 and monitoring well MW-1 as extraction wells to recover free product and petroleum -impacted groundwaterfrom the source area. Approximately 30 days following the MMPE, complete a groundwater monitoring event and present findings in a subsequent monitoring report. C. SITE HISTORY AND CHARACTERIZATION The former Kingsway #3 site is located at 1010 South New Hope Road in Gastonia, Gaston County, North Carolina (Figure 1). Terracon completed this report to present the findings of assessment activities performed at the site on September 22, 2022. C.1 Site Setting Kingsway #3 (site) is comprised of 0.18 acres and contains an approximate 1,966-square-foot commercial building that operates as a convenience store. The remaining areas of the site consist of asphalt -paved parking, the former dispenser island canopy, and grassy areas. Adjacent properties are developed as residential and commercial properties. The site and surrounding properties are depicted in Figures 1 and 2. C.2 Release Summary The facility maintained two 6,000-gallon gasoline USTs installed in 1983 and removed in 2016. A release was discovered in March 2016 following the removal of the two on -site 6,000-gallon gasoline USTs. C.3 Previous Investigations In March 2016, two 6,000-gallon USTs, associated dispensers, and product piping were removed from the site. During tank removal activities, petroleum contamination was observed in the Responsive Resourceful Reliable 3 Kingsway #3 Gastonia, North Carolina Project Number 71217090 Incident No. 40591 November 30, 2022 Irerracon overburden, sidewalls, and UST basin. Based on the observations of Geological Resources, Inc. (GRI), over -excavation was conducted in the UST basin. As a result, approximately 152.14 tons of contaminated soil was removed. Soil samples were collected beneath the USTs, dispensers, and product piping. Total Petroleum Hydrocarbon (TPH) - Gasoline Range Organics (GRO) concentrations exceeded the standards. Confirmation soil samples were collected from the sidewalls and base of the UST basin. Concentrations of benzene and naphthalene exceeded the soil -to -water Maximum Soil Contaminant Concentrations (MSCCs), and a release from the former UST system was reported on March 1, 2016. In May 2016, a Phase I Limited Site Assessment (LSA) was performed on the site to evaluate potential groundwater impacts. On May 4, 2016, one monitoring well (MW-1) was installed, and three soil samples were collected. Groundwater and soil samples were analyzed for VOCs. The soil samples contained concentrations of benzene, toluene, ethylbenzene, and total xylene (BTEX) constituents, naphthalene, isopropylbenzene, n-propylbenzene, 1,3,5-trimethyl benzene, 1,2,4- trimenthylbenzene, C5-C8 aliphatics, and C9-C10 aromatics above the soil -to -water MSCCs. Concentrations of BTEX constituents, naphthalene, isopropyl benzene, n-propylbenzene, 1,3,5- trimethyl benzene, 1,2,4-trimenthylbenzene, C5-C8 aliphatics, C9-Cl0 aromatics, n-butylbenzene, sec-butylbenzene, 0-chlorotoluene, p-isopropyltoulene, styrene, and lead exceeded NCAC 2L Groundwater Quality Standards (2L Standards) in the groundwater sample collected from MW-1. Concentrations of benzene, xylenes, naphthalene, and 1, 2, 4-trimenthylbenzene also exceeded GCLs from monitoring well MW-1. In October 2016, a Compressive Site Assessment (CSA) was conducted by GRI. Three Type -II monitoring wells (MW-2, MW-3, and MW-4) and one telescoping Type -III monitoring well (TW-1) were installed at the site. Soil samples were collected during the monitoring well installation activities. None of the containment concentrations in the soil samples exceeded the soil -to -water MSCCs. Free product was identified in monitoring well MW-1. Concentrations of one or more individual BTEX constituents, methyl tert-butyl ether (MTBE), naphthalene, di -isopropyl ether(IPE) and/or bromodichloromethane exceeded 2L Standards in groundwater samples from MW-2, MW-3, and MW-4. The site was classified as an intermediate risk and further investigation was recommended. In July 2018, S&ME collected groundwater samples from monitoring wells MW-2, MW-3, MW-4, and TW-1. Benzene was detected above its 2L Standard in monitoring wells MW-2, MW-3, and MW-4. MTBE and toluene were detected above 2L Standards in MW-2. In November 2018, S&ME installed and sampled from two monitoring wells (MW-5 and MW-6) and installed one recovery well (RW-1). Benzene was detected above its 2L Standard in monitoring well MW-6. Contaminant concentrations did not exceed GCLs. However, free product was reported in RW-1. On December 11, 2018, S&ME gauged water levels in all the monitoring wells. Approximately 5.75 Responsive Resourceful Reliable 4 Kingsway #3 Gastonia, North Carolina Project Number 71217090 Incident No. 40591 November 30, 2022 Irerracon feet of free product was measured in MW-1, and 0.50 feet of free product in RW-1. S&ME hand bailed approximately 4.5 gallons and 0.25 gallons of free product from monitoring well MW-1 and recovery well RW-1, respectively. Following the hand bailing, S&ME installed two free product absorbent socks in MW-1 and one free product absorbing sock in RW-1. In March 2019, S&ME provided oversight while Advanced Environmental Services, Inc. (AES) conducted a MMPE event on monitoring well MW-1 and recovery well RW-1. A total of 1,062 gallons of total fluids and approximately 49 gallons of volatile organics as vapor were recovered during the MMPE event. S&ME remobilized to the site on April 16, 2019, to conduct groundwater sampling activities and evaluate the effectiveness of the MMPE event. Free productwas detected in monitoring well MW-1. Analytical results indicated various petroleum constituents were detected in groundwater from the monitoring wells located near the source area above the 2L standards. Analyzed constituents did not exceed GCLs. In March 2020, S&ME collected groundwater samples from monitoring wells MW-2 through MW-6 and TW-1. Free product was detected in monitoring well MW-1 and recovery well RW-1. Five target compounds were detected in groundwater from monitoring well MW-2 at concentrations above 2L standards. Benzene was detected above its respective 2L Standard in groundwaterfrom monitoring well MW-4. Nine target compounds were detected above 2L standards in groundwater from monitoring well TW-1. Analyzed constituents did not exceed GCLs. In May 2020, S&ME and subcontractor AES conducted a 96-hour MMPE event on monitoring well MW-1 and recovery well RW-1. A total of 2,204 gallons of petroleum -impacted water and approximately 112 gallons of volatile organics as vapor were recovered during the MMPE event. Terracon mobilized to the site on March 4, 2021, to sample groundwater from monitoring wells MW- 1 through MW-6, TW-1, and recovery well RW-1. According to the laboratory analytical report, benzene, IPE, ethylbenzene, isopropyl benzene, MTBE, naphthalene, toluene, 1,2,4- trimethyl benzene, 1,3,5-trimethylbenzene and total xylenes were detected above 2L standards in groundwater from one or more of the monitoring wells. Analyzed constituents were not detected in groundwater from monitoring wells MW-3, MW-5, MW-6, or TW-1 above laboratory method detection limits. Analyzed constituents did not exceed GCLs and no free product was identified in the monitoring wells. Terracon mobilized to the site on March 11, 2022, to sample groundwater from monitoring wells MW-1, MW-2, MW-4 and MW-5, and recovery well RW-1. According to the laboratory analytical report, benzene, ethylbenzene, MTBE, naphthalene, n-propylbenzene, toluene, 1,2,4- trimethyl benzene and total xylenes were detected above 2L standards in groundwater from one or more of the monitoring wells. Various petroleum constituents were detected below the 2L standards in groundwater from the sampled monitoring wells. Analyzed constituents did not exceed GCLs and no free product identified in the monitoring wells. Responsive Resourceful Reliable 5 Kingsway #3 Gastonia, North Carolina Project Number 71217090 Incident No. 40591 November 30, 2022 C.4 Water Supply Wells Irerracon According to the most recent receptor survey data, included in the May 5, 2020, Groundwater Monitoring Report from S&ME, there are no water supply wells located within 1,000 feet of the source area. Municipal water is available to the site and surrounding area. C.5 Surface Water Terracon noted a drainage feature located approximately 550 feet east of the source area. Based on cursory observations, the drainage feature appears to be a natural intermittent stream. According to the USGS Topographic Map (Figure 1), the surface water feature is an unnamed tributary of Duharts Creek. Based on measurements from Gaston County GIS and Google Earth, the stream is located within 550 feet of the source area. Surface waters are depicted on Figure 1. C.6 Land Use Information The site operates as a convenience store. Adjacent properties to the east of the site include residential and undeveloped lands. Adjacent properties to the north and west include commercial and residential properties. Adjacent properties to the south include South New Hope Road and residential and undeveloped lands. The site and surrounding properties are depicted on Figures 1 and 2. D. ASSESSMENT INFORMATION D.1 Site Geology and Hydrogeology The following resources were reviewed to evaluate site -specific geological and hydrogeological characteristics. Gastonia North, North Carolina, USGS 7.5-minute series topographic map, dated 2003 (Figure 1). Geologic Map of North Carolina, dated 1985. The Geology of the Carolinas, Carolina Geological Society Fiftieth Anniversary Volume, edited by J. Wright Horton, Jr., and Victor A. Zullo, The University of Tennessee Press, dated 1991. Soil Survey of Gaston County, North Carolina, US Department of Agriculture, Natural Resources Conservation Service, Web Soil Survey via the Internet, http://websoilsurvey.nrcs.usda.gov/app/. Soils encountered during monitoring well installation activities in November 2018 were noted as silts and sands of varying percentages throughout the entire boring length of monitoring wells MW-5 and MW-6 and recovery well RW-1. Wet conditions were encountered at Responsive Resourceful Reliable 6 Kingsway #3 Gastonia, North Carolina Project Number 71217090 Incident No. 40591 November 30, 2022 Irerracon approximately 40 to 43 ft-bgs. Soils encountered from prior monitoring well installation activities were primarily sandy silt to silty clay in lower depths. The site is located within the Kings Mountain Belt of the Piedmont Physiographic Province. The Piedmont Physiographic Province generally consists of low to medium elevation, rounded hills, and long rolling northeast to southwest trending ridges with incised creeks and river channels. Rocks in the site area are described as metamorphosed graywacke, volcanic sandstone and siltstone interbedded with mafic and intermediate metavolcanic flows and tuffs. In -place chemical and physical weathering of parent rocks typically form residual soils in the Piedmont region. Weathering is facilitated by fractures, joints, and less resistant minerals in the rock. In areas not altered by erosion, alluvial deposition, or anthropogenic activities, the typical residual soil profile consists of clay -rich unconsolidated materials at the surface, transitioning to sandy silts and silty sands at depth. Typically, the boundary between soil and rock is not sharply defined. This transitional zone is termed "partially weathered rock" or saprolite. Information obtained from the Web County Soil Survey for Gaston County depicts soils on the site as Cecil Urban land complex (CfB) and Pacolet sandy loam (PaE). In the Piedmont, groundwater generally occurs in pore spaces within soils and in the structural features present in the underlying rock (i.e., joints, fractures, and faults). Recharge to the water table is primarily by precipitation infiltrating the surficial soils and percolating downward under the influence of gravity to the water table (vadose zone). Typically, the water table is not a level surface, but a subdued reflection of the land surface. The depth to the water table is not consistent and is dependent upon several factors that include the amount of rainfall, permeability of the soil, the extent of fracturing in the underlying rock and the influences of groundwater pumping. Groundwater typically flows in directions parallel to the ground surface and, under the influence of gravity, migrates to discharge points such as surface water features, the toes of slopes or natural springs. Fluctuations in the depth of the water table can be expected depending on variations in precipitation, surface water run-off, and otherfactors not evident at the time of our subsurface exploration. Normally, the highest levels of the water table occur in late winter and spring, and the lowest levels occur in the late summer and fall. Based on an interpreted groundwater flow direction, groundwater is expected to flow to the northeast from the site. D.2 Sampling Activities D.2.1 Free Product Evaluation Free product has been historically measured in monitoring well MW-1 and recovery well RW-1, ranging in thickness from 9.95 feet to 0.04 feet. During the recent sampling activities, free product was measured in recovery well RW-1 at a thickness of 0.02 feet. Depth to groundwater was Responsive Resourceful Reliable 7 Kingsway #3 Gastonia, North Carolina Project Number 71217090 Incident No. 40591 November 30, 2022 Irerracon measured 34.59 feet below top of casing (btoc). Free product was previously measured in recovery well RW-1 during the March 27, 2020, sampling event. D.2.2 Groundwater Sampling Activities Terracon mobilized to the site on September 22, 2022, to conduct groundwater sampling activities for monitoring wells MW-1, MW-2, MW-4, and recovery well RW-1. The approximate locations of the wells are shown on the Site Plan (Figure 2). The monitoring wells were gauged for depth to product and depth to groundwater from top of casing (TOC). Depth to groundwater ranged from approximately 34.59 feet below top of casing ( ft btoc) in recovery well RW-1 to 38.55 ft btoc in monitoring well MW-4. Based on the water level measurements, groundwater flows to the east. Free product was measured in recovery well RW-1 at a thickness of 0.02 feet. As a result of free product discovery, recovery well RW-1 was not sampled. A groundwater elevation map depicting groundwater flow contours and direction is shown on Figure 3. Current and historical groundwater elevation measurements are provided in Table 2. Prior to sampling, the wells were purged a minimum of three well volumes, or until dry, and allowed to recharge to ensure the collection of representative groundwater samples from the aquifer. Field parameters (including temperature, pH, dissolved oxygen, conductivity, and redox) were measured and recorded for each well in the field notes. Copies of field notes can be found in Appendix A. D.2.3 Analytical Results On September 22, 2022, Terracon collected groundwater samples from monitoring wells MW-1, MW-2, and MW-4 for laboratory analysis of VOCs by Standard Method 6200B. Groundwater samples and a field blank were placed in laboratory -supplied glassware, labeled, and stored in an ice -packed cooler. The samples and chain -of -custody documentation were delivered to Pace Analytical Services, Inc. in Huntersville, North Carolina. The laboratory analytical results were compared to the North Carolina Groundwater Quality Standards 15A NCAC 2L .0202 (2L Standards). Results of the recent assessment activities indicate the following: Free product was measured in recovery well RW-1 at a thickness of 0.02 feet. VOCs were not detected at concentrations exceeding GCLs. Benzene was detected above its 2L Standard in groundwater from monitoring wells MW-1 (481 lag/L), MW-2 (2,570 lag/L) and MW-4 (1.5 lag/L). Ethylbenzene was detected above its 2L Standard in groundwater from monitoring well MW- 2 (621 lag/L). MTBE was detected above its 2L Standard in groundwater from monitoring well MW-2 (90 lag/L). Naphthalene was detected above its 2L Standard in groundwater from monitoring wells MW-1 (123 lag/L) and MW-2 (162 lag/L). Responsive Resourceful Reliable 8 Kingsway #3 Gastonia, North Carolina Project Number 71217090 Incident No. 40591 November 30, 2022 Irerracon n-Propyl benzene was detected above its 2L Standard in groundwater from monitoring well MW-1 (147 pg/L). Toluene was detected above its 2L Standard in groundwater from monitoring wells MW-1 (1,750 pg/L) and MW-2 (2,520 pg/L). 1,2,4-Trimethylbenzene was detected above its 2L Standard in groundwater from monitoring wells MW-1 (989 pg/L) and MW-2 (546 pg/L). Total Xylenes were detected above its 2L Standard in groundwater from monitoring wells MW-1 (2,476 pg/L) and MW-2 (2,575 pg/L). Various other constituents were detected in groundwater from monitoring wells MW-1, MW-2, and MW-4 at concentrations below above laboratory MDLs but below 2L Standards. The apparent groundwater flow direction is to the east. Recent and historical groundwater analytical results are summarized in Table 3 and Table 4. The locations of groundwater VOC concentrations identified above 2L Standards are presented on Figure 4. A copy of the laboratory analytical report is provided in Appendix B. Compared to historical analytical results, VOC concentrations are generally stable, and any fluctuations are within historical ranges. MM PE events appear to have been relatively successful at removing free product from the subsurface. E. CONCLUSIONS AND RECOMMENDATIONS Based on information obtained during the completion of these assessment activities, Terracon provides the following conclusions and findings. Water supply wells have not been identified within 1,000 feet of the source area, and municipal water is available at the site and surrounding areas. Free product was measured in recovery well RW-1 at a thickness of 0.02 feet. VOCs were not detected at concentrations exceeding GCLs. Multiple VOCs were detected at concentrations exceeding their 2L Standards in the groundwater from monitoring wells MW-1, MW-2, and MW-4. The apparent groundwater flow direction is to the east. Based on the findings of our assessment activities, Terracon offers the following recommendations: Conduct a Mobile Multi -Phase Extraction (MMPE) event utilizing recovery well RW-1 and monitoring well MW-1 as extraction wells to recover free product and petroleum -impacted groundwater from the source area. Approximately 30 days following the MMPE, complete a comprehensive groundwater monitoring event and present findings in a subsequent monitoring report. Responsive Resourceful Reliable 9 FIGURES I R A'*q i Qh APPROXIMATE SITE BOUNDARY i. I •$a Cr .` , I � i II ' t-J' �1 ., f' I� 9 �� �!��, '� 'ti_.,1'++ �.' - .._ '- OAb r �. �--�j + { , 4 }l, I 5 _ I �f.. 5 •� r� r Il�tr''I r 'I ' Ir i/ .I � .. �� L ,o!'� '� f� � � f` {_ " �� ��. TOPOGRAPHIC MAP IMAGE COURTESY OF THE U.S. GEOLOGICAL SURVEY QUADRANGLES INCLUDE: GASTONIA NORTH, NC (1/1/2003), MOUNT HOLLY, NC (1/1/1993), GASTONIA SOUTH, NC (1/1/1993) and BELMONT, NC (1/1/1997). Project Manager: Project No. Site Location Map Figure MNM 71217090 Drawn by: TAH 1" = 2000' Scale: Irerracon Kingsway #3 (Incident No. 40591) Checked by: File Name: 1010 South New Hope Road MNM Kin swa #3 2701 Westport Road Approved by: Date: Charlotte, North Carolina 28208 Gastonia, Gaston County, North Carolina MNM Oct.2022 Project Manager: Project No. AGH 71217090 Irerracon Site Plan Figure Drawn by: TAH Scale: 1 "-40' Checked by: Pile Name: Kingsway #3 (Incident No. 40591) 2 MNM Kingsway #3 2707 Westport Road 1010 South New Hope Road Approved by: MNM October 2022 Y� Date: Charlotte, North Carolina Gastonia, Gaston Count North Carolina Project Manager: Project No. AGH 71217090 Groundwater Elevation Map Figure Drawn by: TAH Scale: 1 "-40' Irerracon Checked by: File Name: Kingsway #3 (Incident No. 40591) 3 MNM Kingsway #3 2701 Westport Road 1010 South New Hope Road Approved by: MNM October 2022 Y� Date: Charlotte, North Carolina Gastonia, Gaston Count North Carolina ormer Dispenser Island Constituents of Concern 2L GCL Benzene 1 5,000 Ethylbenzene 600 80,000 Methy tert butyl ether (MTBE) 20 20,000 Naphthalene 6 6,000 n-Propylbenzene 70 26,100 Toluene 600 260,000 1,2,4-Trimethyl benzene (1,2,4-TMB) 400 28,500 Xylenes (total) 500 j 50,000 MW-1 Benzene 481 Naphthalene 123 n-Propylbenzene 147 Toluene 1,750 1,2,4-TMB 989 Xylenes (total) 2,476 GROUNDWATER SAMPLES COLLECTED ON 9/22/2022. IDIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS CONCENTRATIONS I telescoping well II NOT INTENDED FOR CONSTRUCTION PURPOSES DISPLAYED IN [Ng/Lj. Project Manager: Project No. AGH 71217090 Groundwater Analytical Results Figure Drawn by: TAH Scale: 1 "-40' Irerracon Kingsway #3 (Incident No. 40591) Checked by: MNM Pile Name: Kingsway #3 2701 Westport Road 1010 South New Hope Road 4 Approved by: MINIM Date: Date: 2022 Charlotte, North Carolina Gastonia, Gaston Count North Carolina Y� Project Manager: Project No. AGH 71217090 Benzene Isoconcentration Map Figure Drawn by: TAH Scale: 1 "-40' Irerracon Checked by: Pile Name: Kingsway #3 (Incident No. 40591) 5 MNM Kingsway #3 2707 Westport Road 1010 South New Hope Road Approved by: Date: Charlotte, North Carolina Gastonia, Gaston Count North Carolina MNM November 2022 y� Project Manager: Project No. AGH 71217090 Naphthalene Isoconcentration Map Figure Drawn by: TAH Scale: 1 "-40' Irerracon Checked by: Pile Name: Kingsway #3 (Incident No. 40591) 6 MNM Kingsway #3 2707 Westport Road 1010 South New Hope Road Approved by: Date: Charlotte, North Carolina Gastonia, Gaston Count North Carolina MNM November 2022 y� � 1 ;1 RL Mtn a' • F - .i 4 r AmL Y Y Or IF 00 ft. ids _ from releas 11 on) .:r denotes approximate site boundary LETTER CORRESPONDS WITH WATER SUPPLY WELL INFORMATION LISTED IN TABLE 1 Project Manager: Project No. 2 WATER SUPPLY WELL LOCATION MAP Figure NM 7117025 Irerracon g Drawn by: CPM Scale: t — 2 Checked by: MINIM Fie NamKin swa Kingsway #3 (Incident No. 40591) 7 27Westport Road 1010 South New Hope Road Approved by: Date: Charlotte, North Carolina MINIM March 2022 Gastonia, Gaston County, North Carolina TABLES TABLE 1 Historical UST Information Kingsway #3 1010 South New Hope Road Gastonia, North Carolina Terracon Project No. 71217090 NCDEQ Incident No. 40591 Contents Capacity (gallons) Date Installed Date Closed Closed/Active Release from System Gasoline 6,000 5/11 /1983 2/29/2016 Closed Yes Gasoline 6,000 5/11 /1983 2/29/2016 Closed Yes TABLE 2 Monitoring Well Construction Information and Historical Groundwater Elevations Kingsway #3 1010 South New Hope Rd. Gastonia, North Carolina Terracon Project No. 71217090 NCDEQ Incident No. 40591 Well Id Date Installed (mm/dd/yy) Date Water Level Measured (mm/dd/yy) Well Casing Diameter (in.) Screen Interval (ft BGS) Depth of Well (ft-TOC) Top of Casing Elevation (ft.) Depth to Product from Top of Casing Free Product Thickness (ft) Depth to Water from Top of Casing (ft.) Groundwater Elevation (ft.) MW-1 5/4/2016 5/4/2016 2.0 29.5 to 44.5 44.5 100.0 NM NA 39.80 60.20 10/20/20/16 NM 3 40.34 62.23 7/11/2018 34.55 9.95 N M 55.50 12/11/2019 30.90 5.75 36.65 68.28 3/11/2019 28.30 3.89 32.19 71.15 4/16/2019 28.10 0.04 28.14 71.89 3/27/2020 30.55 0.45 31.00 69.39 3/4/2021 NM NA 28.16 71.84 3/11/2022 NM NA 33.40 66.60 9/22/2022 NM NA 34.74 65.26 MW-2 10/18/2016 10/20/2016 2.0 25 to 45 45 97.56 NM NA 35.19 62.37 7/11/2018 NM NA 34.10 63.46 12/11/2018 NM NA 34.62 62.94 4/16/2019 NM NA 30.55 67.01 3/27/2020 NM NA 32.92 64.64 3/4/2021 NM NA 30.84 66.72 3/11/2022 NM NA 34.84 62.72 9/22/2022 NM NA 36.17 61.39 MW-3 10/19/2016 10/20/2016 2.0 25 to 45 45 102.40 NM NA 31.32 71.08 7/11/2018 NM NA 33.80 68.60 12/11/2018 NM NA 32.25 70.15 4/16/2019 NM NA 23.48 78.92 3/27/2020 NM NA 37.47 64.93 3/4/2021 NM NA 24.65 77.75 MW-4 10/19/2016 10/20/2016 2.0 25 to 45 45 100.10 NM NA 37.52 62.58 7/11/2018 NM NA 38.02 62.08 12/11/2018 NM NA 36.92 63.18 4/16/2019 NM NA 32.77 67.33 3/27/2020 NM NA 35.20 64.90 3/4/2021 NM NA 33.08 67.02 3/11/2022 NM NA 37.23 62.87 9/22/2022 NM NA 38.55 61.55 TABLE 2 Monitoring Well Construction Information and Historical Groundwater Elevations Kingsway #3 1010 South New Hope Rd. Gastonia, North Carolina Terracon Project No. 71217090 NCDEQ Incident No. 40591 Well Id Date Installed (mm/dd/yy) Date Water Level Measured (mm/dd/yy) Well Casing Diameter (in.) Screen Interval (ft BGS) Depth of Well (ft-TOC) Top of Casing Elevation (ft.) Depth to Product from Top of Casing (ft11/19/2018 Free Product Thickness (ft) Depth to Water from Top of Casing (ft.) Groundwater Elevation (ft.) MW-5 11/13/2018 2.0 30 to 45 45 96.74 NM NA 27.93 68.81 12/11/2018 NM NA 27.97 68.77 4/16/2019 NM NA 21.22 75.52 3/27/2020 NM NA 27.98 68.76 3/4/2021 NM NA 25.09 71.65 3/11/2022 NM NA 31.78 64.96 MW-6 11/2/2018 11/19/2018 2.0 26 to 41 41 99.97 NM NA 30.60 69.37 12/11/2018 NM NA 29.90 70.07 4/16/2019 NM NA 25.25 74.72 3/27/2020 NM NA 25.15 74.82 3/4/2021 NM NA 22.06 77.91 TW 1 10/19/2016 10/20/2016 2.0 70 to 75 75 100.22 NM NA 32.31 67.91 7/11/2018 NM NA 34.15 66.07 12/11/2018 NM NA 33.38 66.84 4/16/2019 NM NA 27.12 73.10 3/27/2020 NM NA 30.45 69.77 3/4/2021 NM NA 28.10 72.12 RW 1 11/13/2018 11/19/2018 4.0 30 to 50 1 50.00 1 99.75 1 33.83 0.25 34.08 65.88 12/11/2018 32.62 0.50 33.12 67.06 3/11/2019 28.08 2.07 30.15 71.38 4/16/2019 NM NA 27.51 72.24 3/27/2020 30.40 0.25 30.65 69.31 3/4/2021 NM NA 32.39 67.36 3/11/2022 NM NA 33.26 66.49 9/22/2022 34.57 0.02 34.59 65.18 Notes: Depth of Welland Top of Casing elevation taken from Groundwater Monitoring Report, Kingsway #3 dated May 5, 2010 by S&ME, Inc. Top of casing elevations are relative to an arbirtrary site benchmark established by others. TABLE 3 Recent Groundwater Analytical Results Kingsway #3 1010 South New Hope Road Gastonia, North Carolina Terracon Project No. 71217090 NCDEQ Incident No. 40591 Analytical Method 6200B Contaminant of Concern O � N C N C C Well/Sample Date Collected c N m C:a> L a I.D. (mm/dd/yy) a� c m o o o a > a H X N O LO :E N �, o a O L N a cB L d O O V N L6 C+') N O 00 U 0 w �!' Z c H H 2L Standard(ug/L) 1 70 70 600 70 20 6 70 600 400 400 500 GCL (ug/L) 5,000 70,000 70,000 80,000 30,000 20,000 6,000 26,100 260,000 28,500 24,100 50,000 MW-1 9/22/2022 481 14.2 <3.8 484 43.9 6.1J 123 147 1,750 989 281 2,476 MW-2 9/22/2022 2,570 23 65.5 621 25.6 90 162 53 2,520 546 135 2,575 MW-4 9/22/2022 1.5 <0.43 <0.31 2.30 0.48J 1.5 1.3J 0.55 <0.48 4.8 1.8 13.2 RW-1 9/22/2022 Not Sampled - Free Product Notes pg/L - Micrograms per liter < - less than method detection limit Bold font denotes levels above the 2L standard. GCL = Gross contamination levels for groundwater Yellow shading denotes levels above GCLs J - estimated concentration TABLE 4 Summary of Groundwater Analytical Results Kingsway #3 1010 South New Hope Road Gastonia, North Carolina Terracon Project No. 71217090 NCDEQ Incident No. 40591 Analytical Method Contaminant of Concern - a) N a) m N T j m c a C a) _T m V m O 0 L U L O O_ O N 0 c c 4 T L w N C a) a O O_ O 1 ti c O T i a) >. L N 2 N L N w T L N ° as L Q (p Z C c O O- O` d 1� C d Y U C a) H N m a H 7 N N a L H lfi M T X Well/Sample I.D. Date Collected (mm/ddlYY) 2L Standard (ug/L) 1 70 70 70 70 600 70 4,000 20 6 70 70 600 400 400 500 GCL (ug/L) 5,000 5,900 8,800 70,000 70,000 80,000 30,500 4,000,000 20,000 6,000 26,100 70,000 260,000 28,500 24,100 50,000 5/4/2016 7,880 NR NR NR NR 22,300 NR NR <63 6,060 8,900 NR 63,100 56,000 14,600 111,900 10/20/20/16 Not Sampled - Free Product 7/11/2018 Not Sampled - Free Product MW-1 4/16/2019 Not Sampled - Free Product 3/27/2020 Not Sampled - Free Product 3/4/2021 784 <12.2 <10 <8.8 <7.7 911 64.6 NR <10.6 233 <8.5 <7.3 3,680 1,590 431 4,890 3/11/2022 560 <6.1 <5.0 <4.4 <3.8 568 52.1 NR <5.3 144 191 <3.6 2,250 1,190 347 2,734 9/22/2022 481 <6.1 <5.0 14.2 <3.8 484 43.9 NR 6.1J 123 147 <3.6 1,750 989 281 2,476 10/20/2016 3,400 NR NR NR NR 483 NR NR 131 21.2 44.1 NR 4,690 351 97.8 J 3,080 7/11/2018 520 <10 <10 <10 21 72 2.8 J <100 36 <100 5.0 J <10 630 61 14 430 4/16/2019 330 <5.0 <5.0 <5.0 14 71 2.7 J 46 J 17 27 J 6.4 <5.0 660 49 14 380 MW-2 3/27/2020 2,400 <20 <20 <40 68 280 <80 <200 110 <20 51 <20 3,700 210 87 1,620 3/4/2021 3,310 <24.5 <20 <17.6 76.7 873 39.5 NR 118 291 <17 <14.6 6,180 815 <16.6 4,430 3/11/2022 2,380 <19.6 <16 <14.1 64.5 618 25.7 NR 114 155 65.1 <11.7 4,020 555 129 3,170 9/22/2022 2,570 <9.8 <8.0 23 65.5 621 25.6 NR 90 162 53 <5.8 2,520 546 135 2,575 10/20/2016 3.2 NR NR NR NR <0.13 NR NR <0.13 <0.13 <0.13 NR 0.21 J <0.13 <0.13 0.89 J 7/11/2018 63 0.25 J 0.25 J <10 0.91 0.17 J 2 5.6 <0.50 <5.0 0.37 J <0.50 1.1 10 5.9 24.9 MW-3 4/16/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <1.5 3/27/2020 <0.50 <0.50 <0.50 <40 <0.50 <0.50 <2.0 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <1.5 3/4/2021 <0.34 <0.49 <0.40 <0.35 <0.31 <0.30 <0.33 NR <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <1.05 10/20/2016 16 NR NR NR NR 1.20 NR NR 1.3 <0.13 <0.13 NR 3.1 0.33 J 0.29 J 6.9 7/11/2018 100 <0.50 <0.50 <0.50 0.68 1.70 0.97 <5.0 7.7 <5.0 0.64 <0.50 6.2 7 3.8 76 4/16/2019 65 0.25 J 0.22 J <0.50 0.86 3.80 2.20 <5.0 7.1 <5.0 1.4 <0.50 2.5 14 8.7 124 MW-4 3/27/2020 24 <0.50 <0.50 <0.50 <0.50 1.90 2.20 <5.0 14 4.9 <0.50 <0.50 0.24 J 11 4.2 66 3/4/2021 4.4 <0.49 <0.40 <0.35 <0.31 1.90 0.76 NR <0.42 1.4 J <0.34 <0.29 <0.48 9.6 3.1 25 3/11/2022 0.84 <0.49 <0.40 <0.35 <0.31 2.60 0.5 NR 1.8 0.73J 0.52 <0.29 <0.48 4 1.6 11.3 9/22/2022 1.5 1 <0.49 <0.40 <0.43 <0.31 1 2.30 0.48J NR 1.5 1.3J 1 0.55 <0.29 <0.48 4.8 1.8 1 13.2 Page 1 TABLE 4 Summary of Groundwater Analytical Results Kingsway #3 1010 South New Hope Road Gastonia, North Carolina Terracon Project No. 71217090 NCDEQ Incident No. 40591 Analytical Method Contaminant of Concern N O O N L N N N N a N N a N L T C Well/Sample Date Collected N I c C T c a) W I.D. (mmlddlyy) ° o c s E E O N _ � O CO O `O O. N Q O T T ,L.+ >. O. O C f- H T X O m L O N >, L O- O L N L N Q (6 Q d d w O N N M O 00 C ur U i5 I W ti 2 Z c U) H H 2L Standard(ug/L) 1 70 70 70 70 600 70 4,000 20 6 70 70 600 400 400 500 GCL (ug/L) 5,000 5,900 8,800 70,000 70,000 80,000 30,500 4,000,000 20,000 6,000 26,100 70,000 260,000 28,500 24,100 50,000 11/19/2018 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <0.50 1 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <1.5 4/16/2019 2.6 3.9 1 <0.50 0.85 36 4 <5.0 <0.50 54 16 0.16 J 37 150 36 225 MW-5 3/27/2020 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <1.5 3/4/2021 <0.34 <0.49 <0.40 <0.35 <0.31 <0.30 <0.33 NR <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <1.05 3/11/2022 <0.34 <0.49 <0.40 <0.35 <0.31 <0.30 <0.33 NR <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <1.05 11/19/2018 7.7 <0.50 0.17 J <0.50 1.50 0.13 J 0.49 J <5.0 <0.50 <5.0 <0.50 <0.50 0.24 J 0.21 J 0.17 J 0.38 J MW-6 4/16/2019 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <1.5 3/27/2020 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <5.0 <0.50 <0.50 <0.50 <0.50 0.52 <1.0 <0.50 <1.5 3/4/2021 <0.34 <0.49 <0.40 <0.35 <0.31 <0.30 <0.33 NR <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <1.05 10/20/2016 <0.13 NR NR NR NR <0.13 NR NR <0.13 <0.13 <0.13 NR <0.13 <0.13 <0.13 <0.31 7/11/2018 <0.50 <0.50 <0.50 NR <0.50 <0.50 <0.50 <5.0 <0.50 <5.0 <0.50 <0.50 <0.50 <0.50 <0.50 <1.5 TW-1 4/16/2019 12 6 3 <0.50 0.17 J 75 8.2 <5.0 <0.50 35 21 0.37 J 210 240 89 610 3/27/2020 200 270 37 <50 <25 1,500 170 <250 <25 860 530 <25 3,600 5,700 1,100 10,500 3/4/2021 <0.34 <0.49 <0.40 <0.35 <0.31 <0.30 <0.33 NR <0.42 <0.64 <0.34 <0.29 <0.48 <0.50 <0.33 <1.05 11/19/2018 Not Sampled - Free Product 4/16/2019 4,100 94 J 40 J <100 96 J 4,300 240 1 600 J I <100 1 1,400 780 <100 18,000 5,700 1,500 23,700 RW-1 3/27/2020 Not Sampled - Free Product 3/4/2021 1,530 <24.5 <20 <17.6 <15.4 1,550 108 NR <21.1 392 <17 <14.6 5,780 2,750 <16.6 8,420 3/11/2022 414 1 <4.9 <4.0 <3.5 <3.1 483 44.2 NR <4.2 129 145 <2.9 861 1,100 298 2,607 9/22/2022 Not Sampled - Free Product Notes pg/L - Micrograms per liter ND - not detected < - less than method detection limit NE - standard not established. Bold font denotes levels above the 2L standard. GCL = Gross contamination levels for groundwater Yellow shading denotes levels above GCLs NR - not reported. J - estimated concentration Page 2 APPENDIX A FIELD NOTES and SITE PHOTOGRAPHS Groundwater Sampling Log Project No. Kin swa #3 Site Location 1010 South New Hope Rd Gastonia NC Weather _ Casing Diameter Gal/ft L/ft ❑ 6 1.47 5.56 ❑ 4 .653 2.47 ❑ 3 .367 1.39 ® 2 .163 .618 ❑ 1 .041 .154 ❑ 3/ .023 .087 Sample Method ❑ Peristaltic ❑ Grundfos ❑ Bladder ❑ Monsoon ❑ Bailer ❑ PDB ❑ Monsoon Field Parameters Tir 11 Laboratory Analyses Irerracon Date Q ] LZ MI Well ID M&I - _ Sample Collection Time II ZO Evacuation Data Screen Length (ft bls) Well Length (ft bTOC) Depth to water (ft bTOC) c Water column length (ft) t, Well Volume ,C161 Evacuation Volume (x ) 2 •iIq Purge Device QA/QC Samples ❑ Dedicated ❑ Duplicate ❑ Disposable ❑ MS/MSD ❑ Decontaminated ❑ Equipment Blank Field Blank Sample ID for QA/QC ea 11L0 sown Analytical Parameter A� Method ® VOCs i 8260 No. Bottles Bottle Size/Type Preservative 40 mL glass HCI 4 ❑ PAHs ❑ SVOCs 8270 2 1 L amber none ❑ TPH ❑ Metals 6010 1 250 mL Plastic nitric acid 171 Notes: Sampling Personnel: Groundwater Sampling Log Irerracon Project No. Kingswafy #3 Site Location - 1010 South New Hobe Rd Gastonia NC Weather Casing Diameter Gal/ft L/ft ❑ 6 1.47 5.56 ❑ 4 .653 2.47 ❑ 3 .367 1.39 ® 2 .163. .618 ❑ 1 .041 .154 ❑ 3/ .023 .087 Sample Method ❑ Peristaltic ❑ Grundfos ❑ Bladder ❑ Monsoon ❑ Bailer ❑ PDB ❑ Monsoon Field Parameters Date 91Z ZIJ & Well ID YY ;j, Sample Collection Time Evacuation Data Screen Length (ft bls) Well Length (ft bTOC) Depth to water (ft bTOC) Water column length (ft) Well Volume Evacuation Volume (x �j ) Purge Device ❑ Dedicated ❑ Disposable ❑ Decontaminated Time Purge Temp pH DO -(mg/L) Laboratory Analyses Analytical Parameter ® VOCs ❑ PAHs ❑ SVOCs ❑ TPH ❑ Metals Notes: AiL , ftkY 4 QA/QC Samples ❑ Duplicate ❑ MS/MSD ❑ Equipment Blank ❑ Field Blank Sample ID for QA/QC Cond. Turb. Redox Flow Drawdown (µmhos/cm) (NTU)___ — (TV)----. ImL/min)_ TL_ — Method No. Bottles 8260 4 Bottle Size/Type Preservative 40 mL glass I HCI 8270 2 1 L amber none 6010 1 250 mL Plastic nitric acid Sampling Personnel: Groundwater Sampling Log Irerracon Project No. Kingsway #3 Site Location 1010 South New Hope Rd Gastonia.- NC Weather _— Casing Diameter Gal/ft L/ft ❑ 6 1.47 5.56 ❑ 4 .653 2.47 ❑ 3 .367 1.39 ® 2 .163 .618 ❑ 1 .041 .154 ❑ 3/ .023 .087 Sample Method ❑ Peristaltic ❑ Grundfos ❑ Bladder ❑ Monsoon ❑ Bailer ❑ PDB ❑ Monsoon Field Parameters Time Purge [Temp C)_ Laboratory Analyses Analytical Parameter Date 61177 1l . G I Well ID Mw , y Sample Collection Time I 1 f Evacuation Data Screen Length (ft bls) Well Length (ft bTOC) Depth to water (ft bTOC) Water column length (ft) Well Volume Evacuation Volume (x 2, ) Purge Device ❑ Dedicated ❑ Disposable ❑ Decontaminated pH- I - DO "i�15 �I.Oi L45-Liq t-12 "QC Samples ❑ Duplicate ❑ MS/MSD ❑ Equipment Blank ❑ Field Blank Sample ID for QA/QC Cond. —� Turb. Redox (µmhos/cm) (NTU)_ (my) Flow Drawdown fmUminj . _L).. -- — Bottle Size/Type Preservative ® VOCs _ 8� 260 4 40 mL glass HCI ❑ PAHs _ ❑ SVOCs 8270 2 1 L amber none ❑ TPH i ❑ Metals 6010 i 1 250 mL Plastic nitric acid Notes: Watt Vav� °j N nr �..�i nwtt 0\(L-, 03 tD-IF Method No. Bottles Sampling Personnel: TAfl - Groundwater Sampling Log Project No. _ Kingsway #3 _ Site Location 1010 South New Hope Rd Gastonia. NC Weather Casing Diameter Gal/ft L/ft ❑ 6 1.47 5.56 ❑ 4 .653 2.47 ❑ 3 .367 1.39 ® 2 .163 .618 ❑ 1 .041 .154 ❑ 3/ .023 .087 Sample Method ❑ Peristaltic ❑ Grundfos ❑ Bladder ❑ Monsoon ❑ Bailer ❑ PDB ❑ Monsoon Field Parameters Time I Purge Temp Laboratory Analyses Irermcon Date Well ID Sample Collection Time Evacuation Data Screen Length (ft bls) Well Length (ft bTOC) Depth to water (ft bTOC) Water column length (ft) Well Volume Evacuation Volume (x ) Purge Device ❑ Dedicated ❑ Disposable ❑ Decontaminated QA/QC Samples ❑ Duplicate ❑ MS/MSD ❑ Equipment Blank ❑ Field Blank Sample ID for QA/QC pH --]—DO Cond. Turb. Redox Flow FDrawdown µmhos/cm) (N- (mV)-- _ _.._(mUmin- �ft� Analytical Parameter Method No. Bottle Size/Type _ {' Bottles ElVOCs 1 8260 1 4 40 mL glass ❑ PAHs ❑ SVOCs _ _ 8270 2 1 L amber ❑ TPH _ J ❑ Metals 16010 1 250 mL Plastic ❑ i Notes: Z\1110'� \M 1L(� (NU, , Ova YC% Preservative HCI none nitric acid Sampling Personnel: -- - Yip Th dAtead_�,�I�— - b � p e�� _ L�e i►a- , Nf11N I I- - �. - -t If I YYtpi� o 1 h W a;,A. � .1•Y Y�U Project No. 71217090 nnfn Phnfnc Tnknn• Mari-h 11 M22 lrerracon Photograph 1: View of on -site convenience store, facing northeast. WOOD s a � Photograph 2: View of monitoring well MW-1 and recovery well RW-1, facing north. Kingsway #3 — Gastonia, North Carolina Project No. 71217090 nnfn Phnfnc Tnknn• Mari-h 11 M22 lrerracon Photograph 3: View of monitoring well MW-2, facing east. Photograph 4: View of monitoring well MW-4, facing northeast. Kingsway #3 — Gastonia, North Carolina Project No. 71217090 nnfn Phnfnc Tnknn• Mari-h 11 M22 lrerracon Photograph 5: View of monitoring well MW-5, facing southwest. Kingsway #3 — Gastonia, North Carolina APPENDIX B LABORATORY ANALYTICAL REPORT leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 September 29, 2022 Ayla Homer Terracon 2701 Westport Road Charlotte, NC 28208 RE: Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Dear Ayla Homer: Enclosed are the analytical results for sample(s) received by the laboratory on September 23, 2022. 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, c5� Taylor M Cannon taylor.cannon@pacelabs.com (704)875-9092 Project Manager Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 1 of 26 lacmnalyfica(' www,pacelabs.com Pace Analytical Services, LLC 9800 KinceyAve. Suite 100 Huntersville, NC 28078 (704)875-9092 Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 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 CERTIFICATIONS 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. Page 2 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE SUMMARY Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Lab ID Sample ID Matrix Date Collected Date Received 92627339001 MW-1 Water 09/22/22 11:20 09/23/22 08:00 92627339002 MW-2 Water 09/22/22 12:10 09/23/22 08:00 92627339003 MW-4 Water 09/22/22 11:10 09/23/22 08:00 92627339004 FB Water 09/22/2211:40 09/23/22 08:00 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 3 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 SAMPLE ANALYTE COUNT Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Analytes Lab ID Sample ID Method Analysts Reported Laboratory 92627339001 MW-1 SM 6200B SAS 63 PASI-C 92627339002 MW-2 SM 6200B SAS 63 PASI-C 92627339003 MW-4 SM 6200B SAS 63 PASI-C 92627339004 FB SM 6200B SAS 63 PASI-C 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. Page 4 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Sample: MW-1 Lab ID: 92627339001 Collected: 09/22/22 11:20 Received: 09/23/22 08:00 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6200B MSV Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane n-Butylbenzene sec-Butylbenzene tert-Butyl benzene Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene 1,2-Dibromo-3-chloropropane Dibromochloromethane 1,2-Dibromoethane (EDB) Dibromomethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene cis-1,3-Dichloropropene trans- 1,3-Dichloropropene Diisopropyl ether Ethylbenzene Hexachloro-1,3-butadiene Isopropylbenzene (Cumene) Methylene Chloride Methyl-tert-butyl ether Naphthalene n-Propylbenzene Styrene 1,1,1,2-Tetrachloroethane Date: 09/29/2022 12:03 PM Analytical Method: SM 6200B Pace Analytical Services - Charlotte 481 ug/L 6.2 4.3 12.5 09/28/22 03:37 71-43-2 ND ug/L 6.2 3.6 12.5 09/28/22 03:37 108-86-1 ND ug/L 6.2 5.8 12.5 09/28/22 03:37 74-97-5 ND ug/L 6.2 3.8 12.5 09/28/22 03:37 75-27-4 ND ug/L 6.2 4.3 12.5 09/28/22 03:37 75-25-2 ND ug/L 62.5 20.8 12.5 09/28/22 03:37 74-83-9 ND ug/L 6.2 6.1 12.5 09/28/22 03:37 104-51-8 ND ug/L 6.2 5.0 12.5 09/28/22 03:37 135-98-8 ND ug/L 6.2 4.0 12.5 09/28/22 03:37 98-06-6 ND ug/L 6.2 4.2 12.5 09/28/22 03:37 56-23-5 ND ug/L 6.2 3.6 12.5 09/28/22 03:37 108-90-7 ND ug/L 12.5 8.1 12.5 09/28/22 03:37 75-00-3 14.2 ug/L 6.2 5.4 12.5 09/28/22 03:37 67-66-3 ND ug/L 12.5 6.8 12.5 09/28/22 03:37 74-87-3 ND ug/L 6.2 4.0 12.5 09/28/22 03:37 95-49-8 ND ug/L 6.2 4.0 12.5 09/28/22 03:37 106-43-4 ND ug/L 12.5 4.2 12.5 09/28/22 03:37 96-12-8 ND ug/L 6.2 4.5 12.5 09/28/22 03:37 124-48-1 ND ug/L 6.2 3.4 12.5 09/28/22 03:37 106-93-4 ND ug/L 6.2 4.9 12.5 09/28/22 03:37 74-95-3 ND ug/L 6.2 4.2 12.5 09/28/22 03:37 95-50-1 ND ug/L 6.2 4.2 12.5 09/28/22 03:37 541-73-1 ND ug/L 6.2 4.2 12.5 09/28/22 03:37 106-46-7 ND ug/L 6.2 4.3 12.5 09/28/22 03:37 75-71-8 ND ug/L 6.2 4.6 12.5 09/28/22 03:37 75-34-3 ND ug/L 6.2 4.0 12.5 09/28/22 03:37 107-06-2 ND ug/L 6.2 4.4 12.5 09/28/22 03:37 75-35-4 ND ug/L 6.2 4.8 12.5 09/28/22 03:37 156-59-2 ND ug/L 6.2 5.0 12.5 09/28/22 03:37 156-60-5 ND ug/L 6.2 4.4 12.5 09/28/22 03:37 78-87-5 ND ug/L 6.2 3.6 12.5 09/28/22 03:37 142-28-9 ND ug/L 6.2 4.8 12.5 09/28/22 03:37 594-20-7 ND ug/L 6.2 5.3 12.5 09/28/22 03:37 563-58-6 ND ug/L 6.2 4.6 12.5 09/28/22 03:37 10061-01-5 ND ug/L 6.2 4.5 12.5 09/28/22 03:37 10061-02-6 ND ug/L 6.2 3.8 12.5 09/28/22 03:37 108-20-3 484 ug/L 6.2 3.8 12.5 09/28/22 03:37 100-41-4 ND ug/L 25.0 19.1 12.5 09/28/22 03:37 87-68-3 43.9 ug/L 6.2 4.2 12.5 09/28/22 03:37 98-82-8 ND ug/L 25.0 24.4 12.5 09/28/22 03:37 75-09-2 6.1J ug/L 6.2 5.3 12.5 09/28/22 03:37 1634-04-4 123 ug/L 25.0 8.1 12.5 09/28/22 03:37 91-20-3 147 ug/L 6.2 4.2 12.5 09/28/22 03:37 103-65-1 ND ug/L 6.2 3.6 12.5 09/28/22 03:37 100-42-5 ND ug/L 6.2 3.9 12.5 09/28/22 03:37 630-20-6 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 5 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Sample: MW-1 Lab ID: 92627339001 Collected: 09/22/22 11:20 Received: 09/23/22 08:00 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6200B MSV 1,1,2,2-Tetrachloroethane Tetrachloroethene Toluene 1,2,3-Trichlorobenzene 1,2,4-Trichlorobenzene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Trichloroethene Trichlorofluoromethane 1,2,3-Trichloropropane 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Vinyl chloride m&p-Xylene o-Xylene Surrogates 1,2-Dichloroethane-d4 (S) 4-Bromofluorobenzene (S) Toluene-d8 (S) Analytical Method: SM 6200B Pace Analytical Services - Charlotte ND ug/L 6.2 ND ug/L 6.2 1750 ug/L 6.2 ND ug/L 25.0 ND ug/L 25.0 ND ug/L 6.2 ND ug/L 6.2 ND ug/L 6.2 ND ug/L 12.5 ND ug/L 6.2 989 ug/L 6.2 281 ug/L 6.2 ND ug/L 12.5 1790 ug/L 12.5 686 ug/L 6.2 96 % 70-130 102 % 70-130 103 % 70-130 2.8 12.5 09/28/22 03:37 79-34-5 3.6 12.5 09/28/22 03:37 127-18-4 6.1 12.5 09/28/22 03:37 108-88-3 10.1 12.5 09/28/22 03:37 87-61-6 8.0 12.5 09/28/22 03:37 120-82-1 4.2 12.5 09/28/22 03:37 71-55-6 4.1 12.5 09/28/22 03:37 79-00-5 4.8 12.5 09/28/22 03:37 79-01-6 3.7 12.5 09/28/22 03:37 75-69-4 3.3 12.5 09/28/22 03:37 96-18-4 6.2 12.5 09/28/22 03:37 95-63-6 4.2 12.5 09/28/22 03:37 108-67-8 4.8 12.5 09/28/22 03:37 75-01-4 8.9 12.5 09/28/22 03:37 179601-23-1 4.2 12.5 09/28/22 03:37 95-47-6 12.5 09/28/22 03:37 17060-07-0 12.5 09/28/22 03:37 460-00-4 12.5 09/28/22 03:37 2037-26-5 Sample: MW-2 Lab ID: 92627339002 Collected: 09/22/22 12:10 Received: 09/23/22 08:00 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6200B MSV Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane n-Butylbenzene sec-Butylbenzene tert-Butyl benzene Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene 1,2-Dibromo-3-chloropropane Date: 09/29/2022 12:03 PM Analytical Method: SM 6200B Pace Analytical Services - Charlotte 2570 ug/L 10.0 ND ug/L 10.0 ND ug/L 10.0 ND ug/L 10.0 ND ug/L 10.0 ND ug/L 100 ND ug/L 10.0 ND ug/L 10.0 ND ug/L 10.0 ND ug/L 10.0 ND ug/L 10.0 ND ug/L 20.0 22.9 ug/L 10.0 ND ug/L 20.0 ND ug/L 10.0 ND ug/L 10.0 ND ug/L 20.0 6.9 20 09/28/22 03:55 71-43-2 5.8 20 09/28/22 03:55 108-86-1 9.4 20 09/28/22 03:55 74-97-5 6.1 20 09/28/22 03:55 75-27-4 6.8 20 09/28/22 03:55 75-25-2 33.2 20 09/28/22 03:55 74-83-9 9.8 20 09/28/22 03:55 104-51-8 8.0 20 09/28/22 03:55 135-98-8 6.5 20 09/28/22 03:55 98-06-6 6.7 20 09/28/22 03:55 56-23-5 5.7 20 09/28/22 03:55 108-90-7 13.0 20 09/28/22 03:55 75-00-3 8.6 20 09/28/22 03:55 67-66-3 10.8 20 09/28/22 03:55 74-87-3 6.4 20 09/28/22 03:55 95-49-8 6.5 20 09/28/22 03:55 106-43-4 6.8 20 09/28/22 03:55 96-12-8 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 6 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Sample: MW-2 Lab ID: 92627339002 Collected: 09/22/22 12:10 Received: 09/23/22 08:00 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6200B MSV Analytical Method: SM 6200B Pace Analytical Services - Charlotte Dibromochloromethane ND ug/L 10.0 7.2 20 09/28/22 03:55 124-48-1 1,2-Dibromoethane (EDB) ND ug/L 10.0 5.4 20 09/28/22 03:55 106-93-4 Dibromomethane ND ug/L 10.0 7.9 20 09/28/22 03:55 74-95-3 1,2-Dichlorobenzene ND ug/L 10.0 6.8 20 09/28/22 03:55 95-50-1 1,3-Dichlorobenzene ND ug/L 10.0 6.8 20 09/28/22 03:55 541-73-1 1,4-Dichlorobenzene ND ug/L 10.0 6.7 20 09/28/22 03:55 106-46-7 Dichlorodifluoromethane ND ug/L 10.0 6.9 20 09/28/22 03:55 75-71-8 1,1-Dichloroethane ND ug/L 10.0 7.3 20 09/28/22 03:55 75-34-3 1,2-Dichloroethane ND ug/L 10.0 6.4 20 09/28/22 03:55 107-06-2 1,1-Dichloroethene ND ug/L 10.0 7.0 20 09/28/22 03:55 75-35-4 cis-1,2-Dichloroethene ND ug/L 10.0 7.7 20 09/28/22 03:55 156-59-2 trans-1,2-Dichloroethene ND ug/L 10.0 7.9 20 09/28/22 03:55 156-60-5 1,2-Dichloropropane ND ug/L 10.0 7.1 20 09/28/22 03:55 78-87-5 1,3-Dichloropropane ND ug/L 10.0 5.7 20 09/28/22 03:55 142-28-9 2,2-Dichloropropane ND ug/L 10.0 7.8 20 09/28/22 03:55 594-20-7 1,1-Dichloropropene ND ug/L 10.0 8.5 20 09/28/22 03:55 563-58-6 cis-1,3-Dichloropropene ND ug/L 10.0 7.3 20 09/28/22 03:55 10061-01-5 trans- 1,3-Dichloropropene ND ug/L 10.0 7.3 20 09/28/22 03:55 10061-02-6 Diisopropyl ether 65.5 ug/L 10.0 6.2 20 09/28/22 03:55 108-20-3 Ethylbenzene 621 ug/L 10.0 6.1 20 09/28/22 03:55 100-41-4 Hexachloro-1,3-butadiene ND ug/L 40.0 30.6 20 09/28/22 03:55 87-68-3 Isopropylbenzene (Cumene) 25.6 ug/L 10.0 6.7 20 09/28/22 03:55 98-82-8 Methylene Chloride ND ug/L 40.0 39.0 20 09/28/22 03:55 75-09-2 Methyl-tert-butyl ether 90.0 ug/L 10.0 8.4 20 09/28/22 03:55 1634-04-4 Naphthalene 162 ug/L 40.0 12.9 20 09/28/22 03:55 91-20-3 n-Propylbenzene 53.0 ug/L 10.0 6.8 20 09/28/22 03:55 103-65-1 Styrene ND ug/L 10.0 5.8 20 09/28/22 03:55 100-42-5 1,1,1,2-Tetrachloroethane ND ug/L 10.0 6.2 20 09/28/22 03:55 630-20-6 1,1,2,2-Tetrachloroethane ND ug/L 10.0 4.5 20 09/28/22 03:55 79-34-5 Tetrachloroethene ND ug/L 10.0 5.8 20 09/28/22 03:55 127-18-4 Toluene 2520 ug/L 10.0 9.7 20 09/28/22 03:55 108-88-3 1,2,3-Trichlorobenzene ND ug/L 40.0 16.1 20 09/28/22 03:55 87-61-6 1,2,4-Trichlorobenzene ND ug/L 40.0 12.8 20 09/28/22 03:55 120-82-1 1,1,1-Trichloroethane ND ug/L 10.0 6.6 20 09/28/22 03:55 71-55-6 1,1,2-Trichloroethane ND ug/L 10.0 6.5 20 09/28/22 03:55 79-00-5 Trichloroethene ND ug/L 10.0 7.7 20 09/28/22 03:55 79-01-6 Trichlorofluoromethane ND ug/L 20.0 6.0 20 09/28/22 03:55 75-69-4 1,2,3-Trichloropropane ND ug/L 10.0 5.2 20 09/28/22 03:55 96-18-4 1,2,4-Trimethylbenzene 546 ug/L 10.0 9.9 20 09/28/22 03:55 95-63-6 1,3,5-Trimethylbenzene 135 ug/L 10.0 6.6 20 09/28/22 03:55 108-67-8 Vinyl chloride ND ug/L 20.0 7.7 20 09/28/22 03:55 75-01-4 m&p-Xylene 1800 ug/L 20.0 14.2 20 09/28/22 03:55 179601-23-1 o-Xylene 775 ug/L 10.0 6.8 20 09/28/22 03:55 95-47-6 Surrogates 1,2-Dichloroethane-d4 (S) 91 % 70-130 20 09/28/22 03:55 17060-07-0 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 7 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Sample: MW-2 Lab ID: 92627339002 Collected: 09/22/22 12:10 Received: 09/23/22 08:00 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6200B MSV Surrogates 4-Bromofluorobenzene (S) Toluene-d8 (S) Analytical Method: SM 6200B Pace Analytical Services - Charlotte 101 % 70-130 20 104 % 70-130 20 09/28/22 03:55 460-00-4 09/28/22 03:55 2037-26-5 Sample: MW-4 Lab ID: 92627339003 Collected: 09/22/22 11:10 Received: 09/23/22 08:00 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6200B MSV Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane n-Butylbenzene sec-Butylbenzene tert-Butyl benzene Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene 1,2-Dibromo-3-chloropropane Dibromochloromethane 1,2-Dibromoethane (EDB) Dibromomethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene Date: 09/29/2022 12:03 PM Analytical Method: SM 6200B Pace Analytical Services - Charlotte 1.5 ug/L 0.50 0.34 1 09/27/22 03:52 71-43-2 ND ug/L 0.50 0.29 1 09/27/22 03:52 108-86-1 ND ug/L 0.50 0.47 1 09/27/22 03:52 74-97-5 ND ug/L 0.50 0.31 1 09/27/22 03:52 75-27-4 ND ug/L 0.50 0.34 1 09/27/22 03:52 75-25-2 ND ug/L 5.0 1.7 1 09/27/22 03:52 74-83-9 ND ug/L 0.50 0.49 1 09/27/22 03:52 104-51-8 ND ug/L 0.50 0.40 1 09/27/22 03:52 135-98-8 ND ug/L 0.50 0.32 1 09/27/22 03:52 98-06-6 ND ug/L 0.50 0.33 1 09/27/22 03:52 56-23-5 ND ug/L 0.50 0.28 1 09/27/22 03:52 108-90-7 ND ug/L 1.0 0.65 1 09/27/22 03:52 75-00-3 ND ug/L 0.50 0.43 1 09/27/22 03:52 67-66-3 ND ug/L 1.0 0.54 1 09/27/22 03:52 74-87-3 ND ug/L 0.50 0.32 1 09/27/22 03:52 95-49-8 ND ug/L 0.50 0.32 1 09/27/22 03:52 106-43-4 ND ug/L 1.0 0.34 1 09/27/22 03:52 96-12-8 ND ug/L 0.50 0.36 1 09/27/22 03:52 124-48-1 ND ug/L 0.50 0.27 1 09/27/22 03:52 106-93-4 ND ug/L 0.50 0.39 1 09/27/22 03:52 74-95-3 ND ug/L 0.50 0.34 1 09/27/22 03:52 95-50-1 ND ug/L 0.50 0.34 1 09/27/22 03:52 541-73-1 ND ug/L 0.50 0.33 1 09/27/22 03:52 106-46-7 ND ug/L 0.50 0.35 1 09/27/22 03:52 75-71-8 ND ug/L 0.50 0.37 1 09/27/22 03:52 75-34-3 ND ug/L 0.50 0.32 1 09/27/22 03:52 107-06-2 ND ug/L 0.50 0.35 1 09/27/22 03:52 75-35-4 ND ug/L 0.50 0.38 1 09/27/22 03:52 156-59-2 ND ug/L 0.50 0.40 1 09/27/22 03:52 156-60-5 ND ug/L 0.50 0.36 1 09/27/22 03:52 78-87-5 ND ug/L 0.50 0.28 1 09/27/22 03:52 142-28-9 ND ug/L 0.50 0.39 1 09/27/22 03:52 594-20-7 ND ug/L 0.50 0.43 1 09/27/22 03:52 563-58-6 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 8 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Sample: MW-4 Lab ID: 92627339003 Collected: 09/22/22 11:10 Received: 09/23/22 08:00 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6200B MSV Analytical Method: SM 6200B Pace Analytical Services - Charlotte cis-1,3-Dichloropropene ND ug/L 0.50 0.36 1 09/27/22 03:52 10061-01-5 trans- 1,3-Dichloropropene ND ug/L 0.50 0.36 1 09/27/22 03:52 10061-02-6 Diisopropyl ether ND ug/L 0.50 0.31 1 09/27/22 03:52 108-20-3 Ethylbenzene 2.3 ug/L 0.50 0.30 1 09/27/22 03:52 100-41-4 Hexachloro-1,3-butadiene ND ug/L 2.0 1.5 1 09/27/22 03:52 87-68-3 Isopropylbenzene (Cumene) 0.48J ug/L 0.50 0.33 1 09/27/22 03:52 98-82-8 Methylene Chloride ND ug/L 2.0 2.0 1 09/27/22 03:52 75-09-2 Methyl-tert-butyl ether 1.5 ug/L 0.50 0.42 1 09/27/22 03:52 1634-04-4 Naphthalene 1.3.1 ug/L 2.0 0.64 1 09/27/22 03:52 91-20-3 n-Propylbenzene 0.55 ug/L 0.50 0.34 1 09/27/22 03:52 103-65-1 Styrene ND ug/L 0.50 0.29 1 09/27/22 03:52 100-42-5 1,1,1,2-Tetrachloroethane ND ug/L 0.50 0.31 1 09/27/22 03:52 630-20-6 1,1,2,2-Tetrachloroethane ND ug/L 0.50 0.22 1 09/27/22 03:52 79-34-5 Tetrachloroethene ND ug/L 0.50 0.29 1 09/27/22 03:52 127-18-4 Toluene ND ug/L 0.50 0.48 1 09/27/22 03:52 108-88-3 1,2,3-Trichlorobenzene ND ug/L 2.0 0.81 1 09/27/22 03:52 87-61-6 1,2,4-Trichlorobenzene ND ug/L 2.0 0.64 1 09/27/22 03:52 120-82-1 1,1,1-Trichloroethane ND ug/L 0.50 0.33 1 09/27/22 03:52 71-55-6 1,1,2-Trichloroethane ND ug/L 0.50 0.32 1 09/27/22 03:52 79-00-5 Trichloroethene ND ug/L 0.50 0.38 1 09/27/22 03:52 79-01-6 Trichlorofluoromethane ND ug/L 1.0 0.30 1 09/27/22 03:52 75-69-4 1,2,3-Trichloropropane ND ug/L 0.50 0.26 1 09/27/22 03:52 96-18-4 1,2,4-Trimethylbenzene 4.8 ug/L 0.50 0.50 1 09/27/22 03:52 95-63-6 1,3,5-Trimethylbenzene 1.8 ug/L 0.50 0.33 1 09/27/22 03:52 108-67-8 Vinyl chloride ND ug/L 1.0 0.39 1 09/27/22 03:52 75-01-4 m&p-Xylene 7.7 ug/L 1.0 0.71 1 09/27/22 03:52 179601-23-1 o-Xylene 5.5 ug/L 0.50 0.34 1 09/27/22 03:52 95-47-6 Surrogates 1,2-Dichloroethane-d4 (S) 92 % 70-130 1 09/27/22 03:52 17060-07-0 4-Bromofluorobenzene (S) 105 % 70-130 1 09/27/22 03:52 460-00-4 Toluene-d8 (S) 103 % 70-130 1 09/27/22 03:52 2037-26-5 Sample: FB Lab ID: 92627339004 Collected: 09/22/22 11:40 Received: 09/23/22 08:00 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6200B MSV Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Date: 09/29/2022 12:03 PM Analytical Method: SM 6200B Pace Analytical Services - Charlotte ND ug/L 0.50 ND ug/L 0.50 ND ug/L 0.50 ND ug/L 0.50 ND ug/L 0.50 0.34 1 09/27/22 01:45 71-43-2 0.29 1 09/27/22 01:45 108-86-1 0.47 1 09/27/22 01:45 74-97-5 0.31 1 09/27/22 01:45 75-27-4 0.34 1 09/27/22 01:45 75-25-2 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 9 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Sample: FB Lab ID: 92627339004 Collected: 09/22/22 11:40 Received: 09/23/22 08:00 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6200B MSV Bromomethane n-Butylbenzene sec-Butylbenzene tert-Butyl benzene Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene 1,2-Dibromo-3-chloropropane Dibromochloromethane 1,2-Dibromoethane (EDB) Dibromomethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1,2-Dichloroethene 1,2-Dichloropropane 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene cis-1,3-Dichloropropene trans- 1,3-Dichloropropene Diisopropyl ether Ethylbenzene Hexachloro-1,3-butadiene Isopropylbenzene (Cumene) Methylene Chloride Methyl-tert-butyl ether Naphthalene n-Propylbenzene Styrene 1,1,1,2-Tetrachloroethane 1,1,2,2-Tetrachloroethane Tetrachloroethene Toluene 1,2,3-Trichlorobenzene 1,2,4-Trichlorobenzene Date: 09/29/2022 12:03 PM Analytical Method: SM 6200B Pace Analytical Services - Charlotte ND ug/L 5.0 1.7 1 09/27/22 01:45 74-83-9 ND ug/L 0.50 0.49 1 09/27/22 01:45 104-51-8 ND ug/L 0.50 0.40 1 09/27/22 01:45 135-98-8 ND ug/L 0.50 0.32 1 09/27/22 01:45 98-06-6 ND ug/L 0.50 0.33 1 09/27/22 01:45 56-23-5 ND ug/L 0.50 0.28 1 09/27/22 01:45 108-90-7 ND ug/L 1.0 0.65 1 09/27/22 01:45 75-00-3 ND ug/L 0.50 0.43 1 09/27/22 01:45 67-66-3 ND ug/L 1.0 0.54 1 09/27/22 01:45 74-87-3 ND ug/L 0.50 0.32 1 09/27/22 01:45 95-49-8 ND ug/L 0.50 0.32 1 09/27/22 01:45 106-43-4 ND ug/L 1.0 0.34 1 09/27/22 01:45 96-12-8 ND ug/L 0.50 0.36 1 09/27/22 01:45 124-48-1 ND ug/L 0.50 0.27 1 09/27/22 01:45 106-93-4 ND ug/L 0.50 0.39 1 09/27/22 01:45 74-95-3 ND ug/L 0.50 0.34 1 09/27/22 01:45 95-50-1 ND ug/L 0.50 0.34 1 09/27/22 01:45 541-73-1 ND ug/L 0.50 0.33 1 09/27/22 01:45 106-46-7 ND ug/L 0.50 0.35 1 09/27/22 01:45 75-71-8 ND ug/L 0.50 0.37 1 09/27/22 01:45 75-34-3 ND ug/L 0.50 0.32 1 09/27/22 01:45 107-06-2 ND ug/L 0.50 0.35 1 09/27/22 01:45 75-35-4 ND ug/L 0.50 0.38 1 09/27/22 01:45 156-59-2 ND ug/L 0.50 0.40 1 09/27/22 01:45 156-60-5 ND ug/L 0.50 0.36 1 09/27/22 01:45 78-87-5 ND ug/L 0.50 0.28 1 09/27/22 01:45 142-28-9 ND ug/L 0.50 0.39 1 09/27/22 01:45 594-20-7 ND ug/L 0.50 0.43 1 09/27/22 01:45 563-58-6 ND ug/L 0.50 0.36 1 09/27/22 01:45 10061-01-5 ND ug/L 0.50 0.36 1 09/27/22 01:45 10061-02-6 ND ug/L 0.50 0.31 1 09/27/22 01:45 108-20-3 ND ug/L 0.50 0.30 1 09/27/22 01:45 100-41-4 ND ug/L 2.0 1.5 1 09/27/22 01:45 87-68-3 ND ug/L 0.50 0.33 1 09/27/22 01:45 98-82-8 ND ug/L 2.0 2.0 1 09/27/22 01:45 75-09-2 ND ug/L 0.50 0.42 1 09/27/22 01:45 1634-04-4 ND ug/L 2.0 0.64 1 09/27/22 01:45 91-20-3 ND ug/L 0.50 0.34 1 09/27/22 01:45 103-65-1 ND ug/L 0.50 0.29 1 09/27/22 01:45 100-42-5 ND ug/L 0.50 0.31 1 09/27/22 01:45 630-20-6 ND ug/L 0.50 0.22 1 09/27/22 01:45 79-34-5 ND ug/L 0.50 0.29 1 09/27/22 01:45 127-18-4 ND ug/L 0.50 0.48 1 09/27/22 01:45 108-88-3 ND ug/L 2.0 0.81 1 09/27/22 01:45 87-61-6 ND ug/L 2.0 0.64 1 09/27/22 01:45 120-82-1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 10 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 ANALYTICAL RESULTS Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Sample: FB Lab ID: 92627339004 Collected: 09/22/22 11:40 Received: 09/23/22 08:00 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6200B MSV Analytical Method: SM 6200B Pace Analytical Services - Charlotte 1,1,1-Trichloroethane ND ug/L 0.50 0.33 1 09/27/22 01:45 71-55-6 1,1,2-Trichloroethane ND ug/L 0.50 0.32 1 09/27/22 01:45 79-00-5 Trichloroethene ND ug/L 0.50 0.38 1 09/27/22 01:45 79-01-6 Trichlorofluoromethane ND ug/L 1.0 0.30 1 09/27/22 01:45 75-69-4 1,2,3-Trichloropropane ND ug/L 0.50 0.26 1 09/27/22 01:45 96-18-4 1,2,4-Trimethylbenzene ND ug/L 0.50 0.50 1 09/27/22 01:45 95-63-6 1,3,5-Trimethylbenzene ND ug/L 0.50 0.33 1 09/27/22 01:45 108-67-8 Vinyl chloride ND ug/L 1.0 0.39 1 09/27/22 01:45 75-01-4 m&p-Xylene ND ug/L 1.0 0.71 1 09/27/22 01:45 179601-23-1 o-Xylene ND ug/L 0.50 0.34 1 09/27/22 01:45 95-47-6 Surrogates 1,2-Dichloroethane-d4 (S) 89 % 70-130 1 09/27/22 01:45 17060-07-0 4-Bromofluorobenzene (S) 102 % 70-130 1 09/27/22 01:45 460-00-4 Toluene-d8 (S) 105 % 70-130 1 09/27/22 01:45 2037-26-5 Date: 09/29/2022 12:03 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Page 11 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 QC Batch: 725857 Analysis Method: SM 6200B QC Batch Method: SM 6200B Analysis Description: 6200E MSV Laboratory: Pace Analytical Services - Charlotte Associated Lab Samples: 92627339003, 92627339004 METHOD BLANK: 3781305 Associated Lab Samples: 92627339003, 92627339004 Parameter Units Matrix: Blank Result Water Reporting Limit MDL Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 0.50 0.31 09/27/22 01:27 1,1,1-Trichloroethane ug/L ND 0.50 0.33 09/27/22 01:27 1,1,2,2-Tetrachloroethane ug/L ND 0.50 0.22 09/27/22 01:27 1,1,2-Trichloroethane ug/L ND 0.50 0.32 09/27/22 01:27 1,1-Dichloroethane ug/L ND 0.50 0.37 09/27/22 01:27 1,1-Dichloroethene ug/L ND 0.50 0.35 09/27/22 01:27 1,1-Dichloropropene ug/L ND 0.50 0.43 09/27/22 01:27 1,2,3-Trichlorobenzene ug/L ND 2.0 0.81 09/27/22 01:27 1,2,3-Trichloropropane ug/L ND 0.50 0.26 09/27/22 01:27 1,2,4-Trichlorobenzene ug/L ND 2.0 0.64 09/27/22 01:27 1,2,4-Trimethylbenzene ug/L ND 0.50 0.50 09/27/22 01:27 1,2-Dibromo-3-chloropropane ug/L ND 1.0 0.34 09/27/22 01:27 1,2-Dibromoethane (EDB) ug/L ND 0.50 0.27 09/27/22 01:27 1,2-Dichlorobenzene ug/L ND 0.50 0.34 09/27/22 01:27 1,2-Dichloroethane ug/L ND 0.50 0.32 09/27/22 01:27 1,2-Dichloropropane ug/L ND 0.50 0.36 09/27/22 01:27 1,3,5-Trimethylbenzene ug/L ND 0.50 0.33 09/27/22 01:27 1,3-Dichlorobenzene ug/L ND 0.50 0.34 09/27/22 01:27 1,3-Dichloropropane ug/L ND 0.50 0.28 09/27/22 01:27 1,4-Dichlorobenzene ug/L ND 0.50 0.33 09/27/22 01:27 2,2-Dichloropropane ug/L ND 0.50 0.39 09/27/22 01:27 2-Chlorotoluene ug/L ND 0.50 0.32 09/27/22 01:27 4-Chlorotoluene ug/L ND 0.50 0.32 09/27/22 01:27 Benzene ug/L ND 0.50 0.34 09/27/22 01:27 Bromobenzene ug/L ND 0.50 0.29 09/27/22 01:27 Bromochloromethane ug/L ND 0.50 0.47 09/27/22 01:27 Bromodichloromethane ug/L ND 0.50 0.31 09/27/22 01:27 Bromoform ug/L ND 0.50 0.34 09/27/22 01:27 Bromomethane ug/L ND 5.0 1.7 09/27/22 01:27 Carbon tetrachloride ug/L ND 0.50 0.33 09/27/22 01:27 Chlorobenzene ug/L ND 0.50 0.28 09/27/22 01:27 Chloroethane ug/L ND 1.0 0.65 09/27/22 01:27 Chloroform ug/L ND 0.50 0.43 09/27/22 01:27 Chloromethane ug/L ND 1.0 0.54 09/27/22 01:27 cis-1,2-Dichloroethene ug/L ND 0.50 0.38 09/27/22 01:27 cis-1,3-Dichloropropene ug/L ND 0.50 0.36 09/27/22 01:27 Dibromochloromethane ug/L ND 0.50 0.36 09/27/22 01:27 Dibromomethane ug/L ND 0.50 0.39 09/27/22 01:27 Dichlorodifluoromethane ug/L ND 0.50 0.35 09/27/22 01:27 Diisopropyl ether ug/L ND 0.50 0.31 09/27/22 01:27 Qualifiers 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 12 of 26 Pace Analytical Services, LLC lac, Analyilcal ® 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 www.pacelabs.com (704)875-9092 QUALITY CONTROL DATA Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 METHOD BLANK: 3781305 Associated Lab Samples: 92627339003, 92627339004 Parameter Units Matrix: Blank Result Water Reporting Limit MDL Analyzed Qualifiers Ethylbenzene ug/L ND 0.50 0.30 09/27/22 01:27 Hexachloro-1,3-butadiene ug/L ND 2.0 1.5 09/27/22 01:27 Isopropylbenzene (Cumene) ug/L ND 0.50 0.33 09/27/22 01:27 m&p-Xylene ug/L ND 1.0 0.71 09/27/22 01:27 Methyl-tert-butyl ether ug/L ND 0.50 0.42 09/27/22 01:27 Methylene Chloride ug/L ND 2.0 2.0 09/27/22 01:27 n-Butylbenzene ug/L ND 0.50 0.49 09/27/22 01:27 n-Propylbenzene ug/L ND 0.50 0.34 09/27/22 01:27 Naphthalene ug/L ND 2.0 0.64 09/27/22 01:27 o-Xylene ug/L ND 0.50 0.34 09/27/22 01:27 sec-Butylbenzene ug/L ND 0.50 0.40 09/27/22 01:27 Styrene ug/L ND 0.50 0.29 09/27/22 01:27 tert-Butyl benzene ug/L ND 0.50 0.32 09/27/22 01:27 Tetrachloroethene ug/L ND 0.50 0.29 09/27/22 01:27 Toluene ug/L ND 0.50 0.48 09/27/22 01:27 trans-1,2-Dichloroethene ug/L ND 0.50 0.40 09/27/22 01:27 trans- 1,3-Dichloropropene ug/L ND 0.50 0.36 09/27/22 01:27 Trichloroethene ug/L ND 0.50 0.38 09/27/22 01:27 Trichlorofluoromethane ug/L ND 1.0 0.30 09/27/22 01:27 Vinyl chloride ug/L ND 1.0 0.39 09/27/22 01:27 1,2-Dichloroethane-d4 (S) % 90 70-130 09/27/22 01:27 4-Bromofluorobenzene (S) % 105 70-130 09/27/22 01:27 Toluene-d8 (S) % 104 70-130 09/27/22 01:27 LABORATORY CONTROL SAMPLE: 3781306 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers 1,1,1,2-Tetrachloroethane ug/L 50 51.0 102 60-140 1,1,1-Trichloroethane ug/L 50 51.7 103 60-140 1,1,2,2-Tetrachloroethane ug/L 50 48.6 97 60-140 1,1,2-Trichloroethane ug/L 50 53.7 107 60-140 1,1-Dichloroethane ug/L 50 49.4 99 60-140 1,1-Dichloroethene ug/L 50 49.7 99 60-140 1,1-Dichloropropene ug/L 50 55.3 111 60-140 1,2,3-Trichlorobenzene ug/L 50 49.0 98 60-140 1,2,3-Trichloropropane ug/L 50 46.6 93 60-140 1,2,4-Trichlorobenzene ug/L 50 49.0 98 60-140 1,2,4-Trimethylbenzene ug/L 50 46.0 92 60-140 1,2-Dibromo-3-chloropropane ug/L 50 49.0 98 60-140 1,2-Dibromoethane (EDB) ug/L 50 49.8 100 60-140 1,2-Dichlorobenzene ug/L 50 47.9 96 60-140 1,2-Dichloroethane ug/L 50 48.3 97 60-140 1,2-Dichloropropane ug/L 50 51.4 103 60-140 1,3,5-Trimethylbenzene ug/L 50 47.1 94 60-140 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 13 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 LABORATORY CONTROL SAMPLE: Parameter 3781306 Units Spike Conc. LCS Result LCS % Rec % Rec Limits 1,3-Dichlorobenzene ug/L 50 47.0 94 60-140 1,3-Dichloropropane ug/L 50 48.1 96 60-140 1,4-Dichlorobenzene ug/L 50 45.9 92 60-140 2,2-Dichloropropane ug/L 50 51.2 102 60-140 2-Chlorotoluene ug/L 50 46.3 93 60-140 4-Chlorotoluene ug/L 50 45.3 91 60-140 Benzene ug/L 50 48.1 96 60-140 Bromobenzene ug/L 50 47.2 94 60-140 Bromochloromethane ug/L 50 54.1 108 60-140 Bromodichloromethane ug/L 50 50.9 102 60-140 Bromoform ug/L 50 53.4 107 60-140 Bromomethane ug/L 50 41.2 82 60-140 Carbon tetrachloride ug/L 50 52.9 106 60-140 Chlorobenzene ug/L 50 46.9 94 60-140 Chloroethane ug/L 50 43.4 87 60-140 Chloroform ug/L 50 50.0 100 60-140 Chloromethane ug/L 50 44.9 90 60-140 cis-1,2-Dichloroethene ug/L 50 49.3 99 60-140 cis-1,3-Dichloropropene ug/L 50 53.3 107 60-140 Dibromochloromethane ug/L 50 52.0 104 60-140 Dibromomethane ug/L 50 53.5 107 60-140 Dichlorodifluoromethane ug/L 50 46.4 93 60-140 Diisopropyl ether ug/L 50 49.2 98 60-140 Ethylbenzene ug/L 50 46.6 93 60-140 Hexachloro-1,3-butadiene ug/L 50 50.3 101 60-140 Isopropylbenzene(Cumene) ug/L 50 47.3 95 60-140 m&p-Xylene ug/L 100 94.4 94 60-140 Methyl-tert-butyl ether ug/L 50 54.0 108 60-140 Methylene Chloride ug/L 50 46.9 94 60-140 n-Butylbenzene ug/L 50 46.8 94 60-140 n-Propylbenzene ug/L 50 44.7 89 60-140 Naphthalene ug/L 50 50.7 101 60-140 o-Xylene ug/L 50 47.3 95 60-140 sec-Butylbenzene ug/L 50 45.8 92 60-140 Styrene ug/L 50 49.8 100 60-140 tert-Butyl benzene ug/L 50 39.8 80 60-140 Tetrachloroethene ug/L 50 47.3 95 60-140 Toluene ug/L 50 46.1 92 60-140 trans-1,2-Dichloroethene ug/L 50 50.6 101 60-140 trans- 1,3-Dichloropropene ug/L 50 53.2 106 60-140 Trichloroethene ug/L 50 53.4 107 60-140 Trichlorofluoromethane ug/L 50 42.3 85 60-140 Vinyl chloride ug/L 50 48.9 98 60-140 1,2-Dichloroethane-d4 (S) % 95 70-130 4-Bromofluorobenzene (S) % 101 70-130 Toluene-d8 (S) % 99 70-130 Qualifiers 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 14 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 3781307 MS 92626689001 Spike Parameter Units Result Conc. 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1, 2,2-Tetrachloroethane 1,1, 2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethyl benzene 1,2-Dibromo-3- chloropropane 1,2-Dibromoethane (EDB) 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethyl benzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 2,2-Dichloropropane 2-Chlorotoluene 4-Chlorotoluene Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene Dibromochloromethane Dibromomethane Dichlorodifluoromethane Diisopropyl ether Ethylbenzene Hexachloro-1,3-butadiene Isopropylbenzene (Cumene) m&p-Xylene 3781308 MSD Spike MS MSD MS MSD % Rec Conc. Result Result % Rec % Rec Limits RPD ug/L ND 2000 2000 2130 2230 106 112 60-140 ug/L ND 2000 2000 2380 2460 119 123 60-140 ug/L ND 2000 2000 2030 2130 102 107 60-140 ug/L ND 2000 2000 2220 2330 111 117 60-140 ug/L ND 2000 2000 2270 2310 113 116 60-140 ug/L ND 2000 2000 2320 2450 116 122 60-140 ug/L ND 2000 2000 2540 2600 127 130 60-140 ug/L ND 2000 2000 2010 2150 100 108 60-140 ug/L ND 2000 2000 1990 2060 100 103 60-140 ug/L ND 2000 2000 2020 2210 101 110 60-140 ug/L 547 2000 2000 2610 2740 103 109 60-140 ug/L ND 2000 2000 1930 2090 96 105 60-140 Max RPD Qual 5 30 3 30 5 30 5 30 2 30 5 30 2 30 7 30 3 30 9 30 5 30 8 30 ug/L ND 2000 2000 2090 2190 105 110 60-140 5 30 ug/L ND 2000 2000 2090 2170 105 109 60-140 4 30 ug/L 131 2000 2000 2240 2320 105 109 60-140 4 30 ug/L ND 2000 2000 2190 2250 110 113 60-140 3 30 ug/L 163 2000 2000 2280 2380 106 111 60-140 4 30 ug/L ND 2000 2000 2070 2180 104 109 60-140 5 30 ug/L ND 2000 2000 2000 2090 100 105 60-140 5 30 ug/L ND 2000 2000 2020 2140 101 107 60-140 6 30 ug/L ND 2000 2000 2100 2190 105 109 60-140 4 30 ug/L ND 2000 2000 2020 2130 101 106 60-140 5 30 ug/L ND 2000 2000 2040 2110 102 105 60-140 3 30 ug/L 5380 2000 2000 7640 7760 113 119 60-140 2 30 ug/L ND 2000 2000 2070 2140 103 107 60-140 3 30 ug/L ND 2000 2000 2360 2430 118 122 60-140 3 30 ug/L ND 2000 2000 2130 2270 107 113 60-140 6 30 ug/L ND 2000 2000 2120 2210 106 111 60-140 4 30 ug/L ND 2000 2000 2130 2380 107 119 60-140 11 30 ug/L ND 2000 2000 2390 2530 119 126 60-140 6 30 ug/L ND 2000 2000 2110 2170 105 108 60-140 3 30 ug/L ND 2000 2000 2180 2290 109 114 60-140 5 30 ug/L ND 2000 2000 2250 2320 112 116 60-140 3 30 ug/L ND 2000 2000 2050 2130 103 107 60-140 4 30 ug/L ND 2000 2000 2220 2300 111 115 60-140 3 30 ug/L ND 2000 2000 2180 2270 109 114 60-140 4 30 ug/L ND 2000 2000 2060 2130 103 107 60-140 3 30 ug/L ND 2000 2000 2330 2390 117 119 60-140 2 30 ug/L ND 2000 2000 2130 2180 106 109 60-140 3 30 ug/L ND 2000 2000 2050 2150 102 108 60-140 5 30 ug/L 699 2000 2000 2840 2880 107 109 60-140 1 30 ug/L ND 2000 2000 2240 2410 112 121 60-140 7 30 ug/L ND 2000 2000 2160 2240 107 111 60-140 4 30 ug/L 2430 4000 4000 6640 6770 105 108 60-140 2 30 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 15 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 3781307 3781308 MS MSD 92626689001 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Methyl-tert-butyl ether ug/L 1090 2000 2000 3510 3610 121 126 60-140 3 30 Methylene Chloride ug/L ND 2000 2000 2220 2220 111 111 60-140 0 30 n-Butylbenzene ug/L ND 2000 2000 2090 2230 105 112 60-140 6 30 n-Propylbenzene ug/L 58.5 2000 2000 2070 2150 101 105 60-140 4 30 Naphthalene ug/L ND 2000 2000 2100 2300 98 108 60-140 9 30 o-Xylene ug/L 1130 2000 2000 3230 3310 105 109 60-140 2 30 sec-Butylbenzene ug/L ND 2000 2000 2040 2180 102 109 60-140 6 30 Styrene ug/L ND 2000 2000 2170 2270 108 113 60-140 4 30 tert-Butylbenzene ug/L ND 2000 2000 1770 1890 89 94 60-140 6 30 Tetrachloroethene ug/L ND 2000 2000 2130 2200 107 110 60-140 3 30 Toluene ug/L 9440 2000 2000 11200 11400 86 99 60-140 2 30 trans-1,2-Dichloroethene ug/L ND 2000 2000 2310 2370 116 119 60-140 3 30 trans-1,3-Dichloropropene ug/L ND 2000 2000 2140 2200 107 110 60-140 3 30 Trichloroethene ug/L ND 2000 2000 2380 2470 119 123 60-140 4 30 Trichlorofluoromethane ug/L ND 2000 2000 2110 2150 106 108 60-140 2 30 Vinyl chloride ug/L ND 2000 2000 2330 2400 117 120 60-140 3 30 1,2-Dichloroethane-d4 (S) % 93 97 70-130 4-Bromofluorobenzene (S) % 103 101 70-130 Toluene-d8 (S) % 99 100 70-130 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 16 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 QC Batch: 726163 Analysis Method: SM 6200B QC Batch Method: SM 6200B Analysis Description: 6200E MSV Laboratory: Pace Analytical Services - Charlotte Associated Lab Samples: 92627339001, 92627339002 METHOD BLANK: 3782463 Associated Lab Samples: 92627339001, 92627339002 Parameter Units Matrix: Blank Result Water Reporting Limit MDL Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 0.50 0.31 09/28/22 00:00 1,1,1-Trichloroethane ug/L ND 0.50 0.33 09/28/22 00:00 1,1,2,2-Tetrachloroethane ug/L ND 0.50 0.22 09/28/22 00:00 1,1,2-Trichloroethane ug/L ND 0.50 0.32 09/28/22 00:00 1,1-Dichloroethane ug/L ND 0.50 0.37 09/28/22 00:00 1,1-Dichloroethene ug/L ND 0.50 0.35 09/28/22 00:00 1,1-Dichloropropene ug/L ND 0.50 0.43 09/28/22 00:00 1,2,3-Trichlorobenzene ug/L ND 2.0 0.81 09/28/22 00:00 1,2,3-Trichloropropane ug/L ND 0.50 0.26 09/28/22 00:00 1,2,4-Trichlorobenzene ug/L ND 2.0 0.64 09/28/22 00:00 1,2,4-Trimethylbenzene ug/L ND 0.50 0.50 09/28/22 00:00 1,2-Dibromo-3-chloropropane ug/L ND 1.0 0.34 09/28/22 00:00 1,2-Dibromoethane (EDB) ug/L ND 0.50 0.27 09/28/22 00:00 1,2-Dichlorobenzene ug/L ND 0.50 0.34 09/28/22 00:00 1,2-Dichloroethane ug/L ND 0.50 0.32 09/28/22 00:00 1,2-Dichloropropane ug/L ND 0.50 0.36 09/28/22 00:00 1,3,5-Trimethylbenzene ug/L ND 0.50 0.33 09/28/22 00:00 1,3-Dichlorobenzene ug/L ND 0.50 0.34 09/28/22 00:00 1,3-Dichloropropane ug/L ND 0.50 0.28 09/28/22 00:00 1,4-Dichlorobenzene ug/L ND 0.50 0.33 09/28/22 00:00 2,2-Dichloropropane ug/L ND 0.50 0.39 09/28/22 00:00 2-Chlorotoluene ug/L ND 0.50 0.32 09/28/22 00:00 4-Chlorotoluene ug/L ND 0.50 0.32 09/28/22 00:00 Benzene ug/L ND 0.50 0.34 09/28/22 00:00 Bromobenzene ug/L ND 0.50 0.29 09/28/22 00:00 Bromochloromethane ug/L ND 0.50 0.47 09/28/22 00:00 Bromodichloromethane ug/L ND 0.50 0.31 09/28/22 00:00 Bromoform ug/L ND 0.50 0.34 09/28/22 00:00 Bromomethane ug/L ND 5.0 1.7 09/28/22 00:00 Carbon tetrachloride ug/L ND 0.50 0.33 09/28/22 00:00 Chlorobenzene ug/L ND 0.50 0.28 09/28/22 00:00 Chloroethane ug/L ND 1.0 0.65 09/28/22 00:00 Chloroform ug/L ND 0.50 0.43 09/28/22 00:00 Chloromethane ug/L ND 1.0 0.54 09/28/22 00:00 cis-1,2-Dichloroethene ug/L ND 0.50 0.38 09/28/22 00:00 cis-1,3-Dichloropropene ug/L ND 0.50 0.36 09/28/22 00:00 Dibromochloromethane ug/L ND 0.50 0.36 09/28/22 00:00 Dibromomethane ug/L ND 0.50 0.39 09/28/22 00:00 Dichlorodifluoromethane ug/L ND 0.50 0.35 09/28/22 00:00 Diisopropyl ether ug/L ND 0.50 0.31 09/28/22 00:00 Qualifiers 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 17 of 26 Pace Analytical Services, LLC lac, Analyilcal ® 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 www.pacelabs.com (704)875-9092 QUALITY CONTROL DATA Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 METHOD BLANK: 3782463 Associated Lab Samples: 92627339001, 92627339002 Parameter Units Matrix: Blank Result Water Reporting Limit MDL Analyzed Qualifiers Ethylbenzene ug/L ND 0.50 0.30 09/28/22 00:00 Hexachloro-1,3-butadiene ug/L ND 2.0 1.5 09/28/22 00:00 Isopropylbenzene (Cumene) ug/L ND 0.50 0.33 09/28/22 00:00 m&p-Xylene ug/L ND 1.0 0.71 09/28/22 00:00 Methyl-tert-butyl ether ug/L ND 0.50 0.42 09/28/22 00:00 Methylene Chloride ug/L ND 2.0 2.0 09/28/22 00:00 n-Butylbenzene ug/L ND 0.50 0.49 09/28/22 00:00 n-Propylbenzene ug/L ND 0.50 0.34 09/28/22 00:00 Naphthalene ug/L ND 2.0 0.64 09/28/22 00:00 o-Xylene ug/L ND 0.50 0.34 09/28/22 00:00 sec-Butylbenzene ug/L ND 0.50 0.40 09/28/22 00:00 Styrene ug/L ND 0.50 0.29 09/28/22 00:00 tert-Butyl benzene ug/L ND 0.50 0.32 09/28/22 00:00 Tetrachloroethene ug/L ND 0.50 0.29 09/28/22 00:00 Toluene ug/L ND 0.50 0.48 09/28/22 00:00 trans-1,2-Dichloroethene ug/L ND 0.50 0.40 09/28/22 00:00 trans- 1,3-Dichloropropene ug/L ND 0.50 0.36 09/28/22 00:00 Trichloroethene ug/L ND 0.50 0.38 09/28/22 00:00 Trichlorofluoromethane ug/L ND 1.0 0.30 09/28/22 00:00 Vinyl chloride ug/L ND 1.0 0.39 09/28/22 00:00 1,2-Dichloroethane-d4 (S) % 90 70-130 09/28/22 00:00 4-Bromofluorobenzene (S) % 103 70-130 09/28/22 00:00 Toluene-d8 (S) % 105 70-130 09/28/22 00:00 LABORATORY CONTROL SAMPLE: 3782464 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers 1,1,1,2-Tetrachloroethane ug/L 50 49.6 99 60-140 1,1,1-Trichloroethane ug/L 50 52.0 104 60-140 1,1,2,2-Tetrachloroethane ug/L 50 47.0 94 60-140 1,1,2-Trichloroethane ug/L 50 51.6 103 60-140 1,1-Dichloroethane ug/L 50 49.1 98 60-140 1,1-Dichloroethene ug/L 50 49.1 98 60-140 1,1-Dichloropropene ug/L 50 55.1 110 60-140 1,2,3-Trichlorobenzene ug/L 50 48.5 97 60-140 1,2,3-Trichloropropane ug/L 50 46.1 92 60-140 1,2,4-Trichlorobenzene ug/L 50 48.9 98 60-140 1,2,4-Trimethylbenzene ug/L 50 44.9 90 60-140 1,2-Dibromo-3-chloropropane ug/L 50 47.7 95 60-140 1,2-Dibromoethane (EDB) ug/L 50 49.0 98 60-140 1,2-Dichlorobenzene ug/L 50 46.8 94 60-140 1,2-Dichloroethane ug/L 50 47.9 96 60-140 1,2-Dichloropropane ug/L 50 49.9 100 60-140 1,3,5-Trimethylbenzene ug/L 50 46.5 93 60-140 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 18 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 LABORATORY CONTROL SAMPLE: Parameter 3782464 Units Spike Conc. LCS Result LCS % Rec % Rec Limits 1,3-Dichlorobenzene ug/L 50 46.6 93 60-140 1,3-Dichloropropane ug/L 50 46.2 92 60-140 1,4-Dichlorobenzene ug/L 50 45.6 91 60-140 2,2-Dichloropropane ug/L 50 50.5 101 60-140 2-Chlorotoluene ug/L 50 43.7 87 60-140 4-Chlorotoluene ug/L 50 44.7 89 60-140 Benzene ug/L 50 46.3 93 60-140 Bromobenzene ug/L 50 46.1 92 60-140 Bromochloromethane ug/L 50 54.2 108 60-140 Bromodichloromethane ug/L 50 49.8 100 60-140 Bromoform ug/L 50 51.4 103 60-140 Bromomethane ug/L 50 35.6 71 60-140 Carbon tetrachloride ug/L 50 49.8 100 60-140 Chlorobenzene ug/L 50 45.8 92 60-140 Chloroethane ug/L 50 44.1 88 60-140 Chloroform ug/L 50 50.1 100 60-140 Chloromethane ug/L 50 44.3 89 60-140 cis-1,2-Dichloroethene ug/L 50 49.0 98 60-140 cis-1,3-Dichloropropene ug/L 50 51.8 104 60-140 Dibromochloromethane ug/L 50 50.1 100 60-140 Dibromomethane ug/L 50 52.6 105 60-140 Dichlorodifluoromethane ug/L 50 45.1 90 60-140 Diisopropyl ether ug/L 50 48.9 98 60-140 Ethylbenzene ug/L 50 44.9 90 60-140 Hexachloro-1,3-butadiene ug/L 50 49.7 99 60-140 Isopropylbenzene(Cumene) ug/L 50 45.8 92 60-140 m&p-Xylene ug/L 100 92.1 92 60-140 Methyl-tert-butyl ether ug/L 50 52.2 104 60-140 Methylene Chloride ug/L 50 46.2 92 60-140 n-Butylbenzene ug/L 50 46.4 93 60-140 n-Propylbenzene ug/L 50 43.8 88 60-140 Naphthalene ug/L 50 48.5 97 60-140 o-Xylene ug/L 50 46.2 92 60-140 sec-Butylbenzene ug/L 50 44.8 90 60-140 Styrene ug/L 50 48.3 97 60-140 tert-Butyl benzene ug/L 50 38.6 77 60-140 Tetrachloroethene ug/L 50 46.4 93 60-140 Toluene ug/L 50 44.3 89 60-140 trans-1,2-Dichloroethene ug/L 50 50.3 101 60-140 trans- 1,3-Dichloropropene ug/L 50 51.2 102 60-140 Trichloroethene ug/L 50 52.3 105 60-140 Trichlorofluoromethane ug/L 50 42.0 84 60-140 Vinyl chloride ug/L 50 48.7 97 60-140 1,2-Dichloroethane-d4 (S) % 93 70-130 4-Bromofluorobenzene (S) % 101 70-130 Toluene-d8 (S) % 99 70-130 Qualifiers 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 19 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 3782465 MS 92627625004 Spike Parameter Units Result Conc. 1,1,1,2-Tetrachloroethane 1,1,1-Trichloroethane 1,1, 2,2-Tetrachloroethane 1,1, 2-Trichloroethane 1,1-Dichloroethane 1,1-Dichloroethene 1,1-Dichloropropene 1,2,3-Trichlorobenzene 1,2,3-Trichloropropane 1,2,4-Trichlorobenzene 1,2,4-Trimethyl benzene 1,2-Dibromo-3- chloropropane 1,2-Dibromoethane (EDB) 1,2-Dichlorobenzene 1,2-Dichloroethane 1,2-Dichloropropane 1,3,5-Trimethyl benzene 1,3-Dichlorobenzene 1,3-Dichloropropane 1,4-Dichlorobenzene 2,2-Dichloropropane 2-Chlorotoluene 4-Chlorotoluene Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane cis-1,2-Dichloroethene cis-1,3-Dichloropropene Dibromochloromethane Dibromomethane Dichlorodifluoromethane Diisopropyl ether Ethylbenzene Hexachloro-1,3-butadiene Isopropylbenzene (Cumene) m&p-Xylene 3782466 MSD Spike MS MSD MS MSD % Rec Conc. Result Result % Rec % Rec Limits ug/L ND 5000 5000 5130 5280 103 106 60-140 ug/L ND 5000 5000 5890 5740 118 115 60-140 ug/L ND 5000 5000 4900 5060 98 101 60-140 ug/L ND 5000 5000 5520 5510 110 110 60-140 ug/L ND 5000 5000 5590 5410 112 108 60-140 ug/L ND 5000 5000 5630 5620 113 112 60-140 ug/L ND 5000 5000 5950 6070 119 121 60-140 ug/L ND 5000 5000 4910 5000 98 100 60-140 ug/L ND 5000 5000 4790 4850 96 97 60-140 ug/L ND 5000 5000 4900 5050 98 101 60-140 ug/L 1730 5000 5000 6690 6740 99 100 60-140 ug/L ND 5000 5000 4800 4820 96 96 60-140 Max RPD RPD Qual 3 30 2 30 3 30 0 30 3 30 0 30 2 30 2 30 1 30 3 30 1 30 0 30 ug/L ND 5000 5000 5130 5250 103 105 60-140 2 30 ug/L ND 5000 5000 5050 5130 101 103 60-140 2 30 ug/L ND 5000 5000 5230 5190 105 104 60-140 1 30 ug/L ND 5000 5000 5470 5440 109 109 60-140 1 30 ug/L 422 5000 5000 5510 5500 102 102 60-140 0 30 ug/L ND 5000 5000 4940 5120 99 102 60-140 3 30 ug/L ND 5000 5000 4900 4980 98 100 60-140 2 30 ug/L ND 5000 5000 4800 4920 96 98 60-140 3 30 ug/L ND 5000 5000 5040 4960 101 99 60-140 2 30 ug/L ND 5000 5000 4840 4960 97 99 60-140 2 30 ug/L ND 5000 5000 4800 4930 96 99 60-140 3 30 ug/L 13100 5000 5000 19600 19100 129 119 60-140 3 30 ug/L ND 5000 5000 4890 5080 98 102 60-140 4 30 ug/L ND 5000 5000 5960 5810 119 116 60-140 3 30 ug/L ND 5000 5000 5400 5290 108 106 60-140 2 30 ug/L ND 5000 5000 5140 5260 103 105 60-140 2 30 ug/L ND 5000 5000 4720 4810 94 96 60-140 2 30 ug/L ND 5000 5000 5800 5720 116 114 60-140 1 30 ug/L ND 5000 5000 5080 5180 102 104 60-140 2 30 ug/L ND 5000 5000 5330 4990 107 100 60-140 7 30 ug/L 257 5000 5000 5950 5820 114 111 60-140 2 30 ug/L ND 5000 5000 4520 4480 90 90 60-140 1 30 ug/L ND 5000 5000 5510 5420 110 108 60-140 2 30 ug/L ND 5000 5000 5360 5290 107 106 60-140 1 30 ug/L ND 5000 5000 5140 5220 103 104 60-140 1 30 ug/L ND 5000 5000 5950 5810 119 116 60-140 2 30 ug/L ND 5000 5000 4520 4440 90 89 60-140 2 30 ug/L 1950 5000 5000 7370 7270 108 106 60-140 1 30 ug/L 2400 5000 5000 7480 7570 102 103 60-140 1 30 ug/L ND 5000 5000 5480 5470 110 109 60-140 0 30 ug/L 95AJ 5000 5000 5150 5370 101 106 60-140 4 30 ug/L 9500 10000 10000 19800 20000 103 105 60-140 1 30 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 20 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 3782465 3782466 MS MSD 92627625004 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual Methyl-tert-butyl ether ug/L 478 5000 5000 5920 5900 109 108 60-140 0 30 Methylene Chloride ug/L ND 5000 5000 5210 4880 104 98 60-140 6 30 n-Butylbenzene ug/L ND 5000 5000 4980 5130 100 103 60-140 3 30 n-Propylbenzene ug/L 234 5000 5000 5040 5110 96 98 60-140 1 30 Naphthalene ug/L 403J 5000 5000 5220 5590 96 104 60-140 7 30 o-Xylene ug/L 4500 5000 5000 9610 9790 102 106 60-140 2 30 sec-Butylbenzene ug/L ND 5000 5000 4990 5040 100 101 60-140 1 30 Styrene ug/L ND 5000 5000 5200 5340 104 107 60-140 3 30 tert-Butylbenzene ug/L ND 5000 5000 4350 4340 87 87 60-140 0 30 Tetrachloroethene ug/L ND 5000 5000 5110 5280 102 106 60-140 3 30 Toluene ug/L 33800 5000 5000 39200 38000 108 84 60-140 3 30 trans-1,2-Dichloroethene ug/L ND 5000 5000 5700 5610 114 112 60-140 2 30 trans-1,3-Dichloropropene ug/L ND 5000 5000 5300 5180 106 104 60-140 2 30 Trichloroethene ug/L ND 5000 5000 5850 5850 117 117 60-140 0 30 Trichlorofluoromethane ug/L ND 5000 5000 5020 4850 100 97 60-140 4 30 Vinyl chloride ug/L ND 5000 5000 5290 5190 106 104 60-140 2 30 1,2-Dichloroethane-d4 (S) % 96 89 70-130 4-Bromofluorobenzene (S) % 101 102 70-130 Toluene-d8 (S) % 100 99 70-130 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. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 21 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALIFIERS Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 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. TN -The NELAC Institute. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, Date: 09/29/2022 12:03 PM without the written consent of Pace Analytical Services, LLC. Page 22 of 26 leAnalyiical www.pacelabs.com Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 QUALITY CONTROL DATA CROSS REFERENCE TABLE Project: KINGSWAY #3 STATE LEAD Pace Project No.: 92627339 Lab ID Sample ID QC Batch Method QC Batch Analytical Method 92627339001 MW-1 SM 6200B 726163 92627339002 MW-2 SM 6200B 726163 92627339003 MW-4 SM 6200B 725857 92627339004 FB SM 6200E 725857 Date: 09/29/2022 12:03 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Analytical Batch Page 23 of 26 LAX —Title: ENV-FRM-HUN1-0083 01 Sample Condition Upon Receipt /qace Effective Date: 051121202205/12/2022 Laboratory receiving samples: —1 Asheville ❑ Eden❑ Greenwood ❑ Huntersviill_e Raleig��cMechanicsville❑ Atlantan Kernersviltel—I Sample Condition Client Name: e���rG�CfJYj—GYt�t�ttU .. Project {.` ��]]) tf: 011 • 9262 / 339 Courier: ❑Fed Ex ❑UPS ❑LISPS ❑Client 1111111111111111111111❑ Commercial ❑Other: 92627:339 Custody Seal Present? ❑Yes No Seals intact? ❑Yes Na Date/initials Person Examining Contents: 4 f Packing Material: ERLble Wrap ❑Bubble Bags ❑None ❑ Other Biological Tissue Frozen? Thermometer: ❑Yes ❑No E�K/X_ Na-e. n to: ._L� Type of Ice: et ❑Blue ❑None 1 '7 Correction Factor: Cooler Temp:! Add/Subtract (°C} U Temp should be above freezing to 6°C -7 ❑Samples out of temp criteria. Samples on ice, cooling process Cooler Temp Corrected (°C Lc1 has begun USDA Regulated Soil (` / , water sample) Did samples originate in asn quarantine zone within the United States: CA, NY, or SC (check mansl? FlYes f;J. Did samples originate from a foreign source (internatio By, nrFi llna 4J--ii —A D.,a.t� M-11 ! V,, l Comments/Discrepancy: Chain of Custody Present? 16es ❑No ❑N/A 1. Samples Arrived within Hold Time? ' es ❑No ❑N/A 2. Short Hold Time Analysis (02 hr.)? Des lam []N/A 3. Rush Turn Around Time Requested? ❑Yes VM. ❑N/A 4. Sufficient Volume? es ❑No ❑N/A S, Correct Containers Used? -Pace Containers Used? 'JRKes \QYe ❑No ❑No []N/A ❑N/A 6. Containers Intact? Yes ❑N/A 7. Dissolved analysis: Samples Field Filtered? []Yes ,❑No Salo ❑N/A 8. Sample Labels Match CDC? Includes Date/Time/ID/Analysis Matrix: 'EYes ❑No ❑N/A 4. Headspace in VOA Vials (SS-6mm)? Des p;+v ❑N/A 10. Trip Blank Present? Trip Blank Custody Seals Present? ❑Yes ❑Yes JjrNo El N/A ❑N/A 11. COMMENTS/SAMPLE DISCREPANCY CLIENT NOTIFICATIONIRESOLUTION Person contacted: Project Manager SCURF Review: Lot ID of split containers: Date/Time: Date: ua we Field Data Required? ❑Yes ❑No Qualtrax ID: 69614 Page I of 2 Page 24 of 26 C rare. L-rvv rr[tw-nuiV i-uuo,5 vu-i tiarnpie t:onclitlon Upon Receipt e v Effective Date: 05/12/202205/12/2022 *Check mark top half of box if pH and/or dechlorinatinn is verified and project f W�# : 92627339 within the acceptance range for preservation samples. — — Exceptions: VOA, Co4orm, roc, Oil and Grease, DRO/8015 (water) DOC, Mig PM: Tl'IC Due Date: 09/30/22 **Bottom half of box is to list number of bottles CLIENT: 92—Terrac NC ***Check all unpreserved Nitrates for chlorine Fli z z N a�i v � v Q. a C C � 5 U u N sCC E ti Ln a -i In h E rM ar a a co 1 z 3 4 5 6 7 8 9 10 11 12 x � m z ` u p U _ d 2 N ry Z N C Z N S..r Q Z rq m T} v 03 n a 2 v m X CL z M a Z Q a l7 a c O O O C S M 2 Z V C U 7 N S Z _? V! N d rp N Q } _ V V U V U V N .T a a a ° E E a E a c o 0 a o c v a a a CC J a J C J G Q Q J Q J 7 > > > }Q a Vl N E E E E E `v a E E E J m J J 00 - "' o yr 'A = = o o o E E E E E E E v N �4, N N � , H N 4y' a Qv a 'r a Z N rB L=L r a N N lA v 0. a v •� m m m M m M M m lY7 m m ca m m C7 l7 C7 0 V' l7 to W 0 U V' �r S Q Q Q Q 0 O 7 > O O j w u I PH Adjustment Log for Preserved Samples Sample 1p Type of Preservative pH upon receipt Date preservation adjusted Time preservation Amount of Preservative adjusted added Lot q .,'—+ CVe� MVHr u d ❑rscrepancy altecting North Larollna compliance samples, a copy of this form will be sent to the North Carolina DENR Certification Office (i.e. Out of hold, incorrect preservative, out of temp, incorrect containers. Qualtrax ID., 69614 Page 2 of 2 Page 25 of 26 A ro m 0 D 2 A V ITEM # o m w n a g n _ w > u K o n zCn r� O ❑ 3 o 3 G d m T> O rr in a � v v ran m a O m r Z a' � w �n CA e n ti OD.SOo So Fni $ M r m A n 6 � � K x A V. Q. 0 o n m m tior Omq N �Sy rr ~2 O m n a N ;z C' G 'm F v u Z v v o-4 v Q OJ T a p MATRIX CODE (see valid modes to left] C � m � SAMPLE TYPE (G=G RA9 C=COIdP) rn m a m S• s g 9 rl It G m m pp ° r va y d .�.-. Z C22 mJ m A m O R ? m z t y O D N Sm m SAMPLE TEMP AT COLLECTION m D n v� ,�, N OF CONTAIN ERs m m w a o Unpreserved m ro o' N2SO4 n HNO3 m @ o l O NaOH m w r, l ^' Na2S203 rb Methanol o Other � o' Analyses Test YIN n v r S VOC 6200 m v > p Q rI � z o N m 3 U3 n c n H a ,p a A a c� ra N m m a `z -+ v` m Iu m TEMP in C. Residual Chlorine (Y1N) z m n c Received on Ice si (Y`N) a n Sealed v Cooper 1 O injact tl I L I I L fl-1U N m :C (� I N 7 O C� C ,1 Lo a n '< C v � m� �v D r 0 a c 3 rF7 z D � (U < (D � .� @ (D a y o rt 3 c O Cr n O v m M ro Q Page 26 of 26