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HomeMy WebLinkAboutMO-3099_6867_CA_MRP_20230516 20233796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder www.Kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 May 8, 2023 Kleinfelder Project No.: 20233796.004A Mr. Daniel Bowser, PG NCDEQ – UST Section Mooresville Regional Office 610 East Center Avenue, Suite 301 Mooresville, North Carolina 28115 SUBJECT: Annual Corrective Action Plan Monitoring Report – 2023 Former ExxonMobil Facility #42094 Incident No. 6867 Risk Classification: Intermediate 3721 Freedom Drive Charlotte, Mecklenburg County, North Carolina Dear Mr. Bowser: On behalf of ExxonMobil Environmental and Property Solutions (E&PS), Kleinfelder is pleased to provide its report detailing the groundwater sampling event conducted at the subject site in March 2023 as required by the North Carolina Department of Environmental Quality (NCDEQ). Kleinfelder appreciates the opportunity to be of service to you. Should you have questions or require additional information, please do not hesitate to contact the undersigned. Sincerely, KLEINFELDER Firm License No. F-1312 Marie Randall Michael J. Burns, PG Project Coordinator Program Manager MJB/MDR:asp Enclosure cc: Ms. Julie Naughton – E&PS ` 20233796.004A/ RAL23R152427 Page i of iii May 8, 2023 © 2023 Kleinfelder www.Kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 ANNUAL CORRECTIVE ACTION PLAN MONITORING REPORT - 2023 FORMER EXXONMOBIL FACILITY #42094 GROUNDWATER INCIDENT #6867 3721 FREEDOM DRIVE CHARLOTTE, MECKLENBURG COUNTY, NC KLEINFELDER PROJECT NO. 20224361.003A May 8, 2023 Copyright 2023 Kleinfelder All Rights Reserved ONLY THE CLIENT OR ITS DESIGNATED REPRESENTATIVES MAY USE THIS DOCUMENT AND ONLY FOR THE SPECIFIC PROJECT FOR WHICH THIS REPORT WAS PREPARED 20233796.004A/ RAL23R152427 Page ii of iii May 8, 2023 © 2023 Kleinfelder www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 ANNUAL CORRECTIVE ACTION PLAN MONITORING REPORT - 2023 SITE NAME AND LOCATION: Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, Mecklenburg County, North Carolina RISK CLASSIFICATION: Intermediate FACILITY NO.: Former Exxon 4-2094 LATITUDE AND LONGITUDE: 35.248595°N/-80.897922°W INCIDENT NO.: 6867 LAND USE CATEGORY: Commercial DATE OF REPORT: May 8, 2023 RESPONSIBLE PARTY: ExxonMobil Corporation ExxonMobil Environmental and Property Solutions Ms. Julie Naughton – Portfolio Manager 22777 Springwoods Village Parkway Spring, Texas 77389 346.224.4654 PROPERTY OWNER: Gonzalez House Painting 2030 Burgundy Drive Charlotte, NC 28262 704.930.8392 CONSULTANT: Kleinfelder, Inc. Attention: Mr. Michael Burns 3200 Gateway Centre Blvd, Suite 100 Morrisville, North Carolina 27560 919.755.5011 RELEASE INFORMATION: Evidence that a release from the former UST system was discovered in November 1990. 20233796.004A/ RAL23R152427 Page iii of iii May 8, 2023 © 2023 Kleinfelder www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 TABLE OF CONTENTS 1 BACKGROUND ................................................................................................... 1 1.1 FREE PRODUCT HISTORY ...................................................................... 2 1.2 SITE REMEDIATION HISTORY ................................................................ 3 2 PURPOSE ............................................................................................................ 4 3 METHODS............................................................................................................ 5 3.1 MONITORING WELL SAMPLING ............................................................. 5 4 RESULTS ............................................................................................................. 6 4.1 GROUNDWATER FLOW DIRECTION ...................................................... 6 4.2 MONITORING WELL SAMPLING RESULTS ............................................ 6 5 CONCLUSIONS ................................................................................................... 7 6 LIMITATIONS ....................................................................................................... 9 TABLES 1 Well Construction Details 2 Groundwater Elevations 3 Historical Groundwater Elevation Data 4 Field Natural Attenuation Data 5 Historical Field Natural Attenuation Data 6 Groundwater Sample Analytical Results 7 Historical Groundwater Analytical Results FIGURES 1 Site Location Map 2 Site Map 3 Hydrocarbon Distribution / Groundwater Contour Plan (March 2023) APPENDICES A Laboratory Analytical Reports and Chain-of-Custody Documents 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder Page 1 of 9 www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 Annual Corrective Action Plan Monitoring Report – 2023 Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, Mecklenburg County, North Carolina 1 BACKGROUND The site consists of one (1) parcel located at 3721 Freedom Drive, Charlotte, Mecklenburg County, North Carolina (Figure 1). The parcel is identified by the Mecklenburg County Tax Administration Office as Parcel ID Number (PIN) 05901311 with a listed owner of Gonzalez House Painting and is occupied by VTN an automotive repair facility. The site was the location of former ExxonMobil (Exxon; Client) facility #42094 which operated as a gasoline retail store and service station between 1970 and October 1990. All underground storage tanks (USTs) and ancillary equipment were closed by removal in November 1990 and prior to divestment of the site by Exxon. The UST system consisted of one (1) 6,000-gallon gasoline UST, two (2) 4,000-gallon gasoline USTs, one (1) 4,000-gallon used oil UST and one (1) 550-gallon heating oil UST. The site was re-developed as a vehicle repair facility between 1993 and 2001. Groundwater monitoring wells are also present on the southern adjoining property, Parcel ID Number (PIN) 05901322. Monitoring well locations are depicted on Figure 2. The area surrounding the site is composed of commercially developed properties, mixed-use properties, and residential properties. The nearest single-family residence is located approximately 130 feet west of the source area. Environmental Resources Management Inc. (ERM) conducted a water supply well survey for the site in February 2001. Five (5) inactive water supply wells have been identified within a 1,500-foot radius of the site. All wells were located northwest and topographically upgradient of the subject property. The nearest well was located approximately 1,350 feet from the source area. Municipal water service provided by the Charlotte- Mecklenburg Utilities Department is available to all properties in the surrounding area. No surface water bodies have been identified within 500 feet of the site. Petroleum-impacted soil was discovered during the November 1990 UST closure at the base of the gasoline UST field and below one (1) dispenser island. The cause and quantity of the release is unknown. A soil-vapor extraction (SVE) system utilizing two (2) extraction wells operated intermittently at the site between August 1992 and July 1996. Additional soil samples were collected by ERM in the vicinity of the former gasoline UST field, eastern dispenser island, and 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder Page 2 of 9 www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 former used oil UST in 2001 and 2002. A total of 19 volatile organic compounds (VOCs) were detected above the soil-to-groundwater Maximum Soil Contaminant Concentrations (MSCCs). Four (4) VOCs (benzene, naphthalene, C5-C8 Aliphatics and C9-C12 Aromatics) were detected in concentrations above the residential MSCCs. Soil data indicated that the bulk of the petroleum- impacted soil is located between 11 and 15 feet below ground surface (bgs). The petroleum- impacted soil in areas away from the former UST field and dispenser island is attributed to the migration of petroleum-impacted groundwater within the vadose zone. The site is located within the Charlotte geologic belt of the Piedmont physiographic province and is underlain by saprolite, a layer of weathered and variably decomposed bedrock. Soils at the site consist primarily of silt and clay based on soil boring logs for site monitoring wells and direct push soil borings. Saprolitic soil was encountered in all borings at depths greater than 10 feet bgs. Imported fill soil consisting of semi-plastic clay with gravels was observed over much of the site. Partially weathered bedrock was encountered in soil borings at 22 feet and 55 feet bgs. Depth to groundwater at the site ranges from 17 to 28 feet bgs on average. Kleinfelder became the environmental consultant on record for this site from the previous consultant, Arcadis G&M of North Carolina, Inc. (Arcadis), in July 2021. The most recent report for this site submitted by Arcadis is the 2019 Annual Corrective Action Plan Monitoring Report and contains tables of historical groundwater monitoring and analytical results, historical free product recovery and remediation events, and a historical groundwater monitoring well site map. The site was not sampled in 2020 and 2021 because of third party access issues both with the previous consultant Arcadis and Kleinfelder. The NCDEQ Risk Classification for the site is “Intermediate” due to the presence of dissolved- phase constituents at concentrations exceeding applicable NCDEQ Gross Contaminant Levels (NC GCLs). Therefore, concentrations of chemicals of concern (COCs) in groundwater are being compared to the NC GCLs. 1.1 FREE PRODUCT HISTORY No free product was detected during the March 23, 2023, groundwater gauging and sampling event. Free product has historically been detected in groundwater monitoring wells MW-2R, MW- 5, MW-9, and chemical injection well INJ-2 at maximum apparent thicknesses of 0.04 feet, 2.11 feet, 1.38 feet, and 1.89 feet, respectively. Monitoring well MW-2R was replaced by well MW-5 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder Page 3 of 9 www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 in 2002. Free product has not been detected in monitoring well MW-5 since 2011, MW-9 since 2013, and INJ-2 since 2017. 1.2 SITE REMEDIATION HISTORY Four (4) shallow ground water monitor wells were installed in 1990 following the removal of the USTs.A review of previous reports indicated that the remedial activities that have occurred at the former Exxon facility #42094 were initiated in August 1992. Soil-Vapor Extraction soil remediation (SVE) system utilizing two (2) extraction wells operated intermittently at the site between August 1992 and July 1996. In March 2002 an aggressive fluid vapor recovery (AFVR) event was conducted, and 0.33 gallons of petroleum hydrocarbons were reportedly recovered. Since little was reportedly recovered using AFVR, Mobile Multi-Phase Extraction (MMPE) was recommended. From January 27 to February 3, 2003, Mobile Multi-Phase Extraction (MMPE) events reportedly removed 15.5 gallons of vapor phase hydrocarbons from MW-5 and MW-9. April 22, 2003, passive free product skimmers were installed in MW-5 and MW-9. Between November 2009 and December 2010 five (5) MMPE events were conducted on monitoring wells MW-5 and MW-9 that reportedly recovered a total of 394.75 lbs. of total petroleum hydrocarbons (TPH) and 17,555 gallons of groundwater. In September 2012, 1,150-gallons of surfactant mixture was injected into INJ-1, INJ-2, MW-5, and MW-9. In September 2012 to October 2012 five (5), eight-hour AFVR events were conducted on INJ-1, INJ-2, MW-5, MW-9 and MW-10 reportedly recovering a total of 230.82 lbs. of TPH and 1,374 gallons of groundwater. Two (2) sixteen-hour AFVR events on INJ-1, INJ-2, MW-5, and MW-9 conducted in May and June 2018 reportedly recovered a total of 41.16 lbs. of TPH and 1,283 gallons of groundwater. In July 2018, the last AFVR event was conducted for eight hours on INJ-2, and MW-5 with 12.77 lbs. of TPH and 388 gallons of groundwater reportedly recovered. Groundwater natural attenuation was then monitored from July 2018 to present. Current and historical groundwater elevations along with historic free product thicknesses are summarized in Table 2 and Table 3. 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder Page 4 of 9 www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 2 PURPOSE This report details the results of the March 23, 2023, groundwater sampling event completed by Kleinfelder. Groundwater samples were collected on-site from a total of three (3) monitoring wells. A total of eight (8) monitoring wells were gauged. 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder Page 5 of 9 www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 3 METHODS 3.1 MONITORING WELL SAMPLING A groundwater monitoring event was conducted on March 23, 2023, which included sampling three (3) on-site monitoring wells. A total of eight (8) monitoring wells were gauged. The well construction details are provided on Table 1. Upon arrival at the site, each of the groundwater monitoring wells to be sampled was opened and allowed to equilibrate to atmospheric conditions. Static water levels were obtained from the monitoring wells using a decontaminated water level meter. The locations of the monitoring wells are shown on Figure 2. The monitoring wells were purged of approximately three (3) well volumes of groundwater or until dry. Due to equipment failure, groundwater samples were collected using a disposable bailer during the sampling event on March 23, 2023. Due to equipment failure, field measurements of pH, specific conductivity, dissolved oxygen, oxidation reduction potential and temperature were not measured during the sampling event on March 23, 2023. A summary of field attenuation data from the March 29, 2022, sampling event is provided in Table 4 and a summary of historical natural attenuation data is provided in Table 5. The samples were placed into laboratory-provided sampling vials, labeled, and maintained on ice and shipped via FedEx™ to Eurofins Lancaster Laboratories Env., LLC in Lancaster, Pennsylvania. The samples were analyzed for volatile organic compounds (VOCs) by EPA Method 6200B. A Chain-of-Custody document was utilized throughout the collection and transportation process and is included with the laboratory report in Appendix A. 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder Page 6 of 9 www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 4 RESULTS 4.1 GROUNDWATER FLOW DIRECTION Potentiometric data collected from monitoring wells on March 23, 2023, were used to generate a contour plot for the shallow zone. Data presented in Table 2 and Table 3 summarizes the current and historical groundwater elevations at each monitoring well. Water levels measured during the March 23, 2023; sampling event were an average of 0.66 feet higher than those measured in March 2022. Groundwater flow in the shallow zone is generally trending toward the Southeast (Figure 3) with an average horizontal gradient of 0.02 ft/ft. 4.2 MONITORING WELL SAMPLING RESULTS Analytical results for the latest groundwater samples, which were collected on March 23, 2023, are summarized in Table 6. Groundwater samples were collected from three (3) on-site monitoring wells, DW-2, MW-5, and MW-9. The well locations are depicted on Figure 2 and monitoring well laboratory analytical data are illustrated on Figure 3. The laboratory analytical report is included as Appendix A. Groundwater sample analytical results are included as Table 6, and historic groundwater analytical data is included as Table 7. The two (2) on-site monitoring wells MW-5, and MW-9 reported Benzene concentrations exceeded the applicable NC GCL of 5000 µg/L. The three (3) on-site monitoring wells reported constituent concentrations (in parentheses) above their respective NC 2L Standards. The concentrations are reported in micrograms per liter (µg/L).  Monitoring well MW-5: Benzene (19000 µg/L), Ethylbenzene (1200 µg/L), Toluene (14000 µg/L), Total Xylenes (7800 µg/L), 1,2,4-TMB (980 µg/L), 1,2 Dichloroethane (130 µg/L), DIPE (1300 µg/L), and Naphthalene (400 µg/L).  Monitoring well MW-9: Benzene (7700 µg/L), Ethylbenzene (2300 µg/L), MTBE (410 µg/L), Toluene (15000 µg/L), Total Xylenes (16000 µg/L), 1,2,4-TMB (2900 µg/L), 1,3,5-TMB (830 µg/L), DIPE (990 µg/L), Naphthalene (1000 µg/L), and Propylbenzene (230 µg/L).  Monitoring well DW-2: Benzene (2500 µg/L), MTBE (130 µg/L), 1,2- Dichloroethane (260 µg/L), and DIPE (3200 µg/L 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder Page 7 of 9 www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 5 CONCLUSIONS Groundwater samples from the annual sampling event detailed in this report were collected using a disposable bailer due to equipment failure, from three (3) onsite monitoring wells. Water levels were gauged from eight (8) monitoring wells. Kleinfelder recommends continued annual groundwater monitoring until COC concentrations in all sampled groundwater monitoring wells are below their respective applicable GCLs for at least two (2) consecutive groundwater monitoring events. Proposed Groundwater Sampling Schedule: Groundwater Sampling Schedule Scope of Work and Analyses April 2024 Gauge all active wells Groundwater sample: DW-2, MW-5, MW-9 Standard List by Standard Method 6200B 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder Page 8 of 9 www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 1. The date the monitoring report was due May 23, 2023. Will this report be submitted after the established due date? NO 2. Was any required information from the template missing? NO 3. If appliable, will any of the proposed attenuation milestones under the schedule approved in the Corrective Action Plan not be met? If the answer is “No” skip to #6. If the answer is “Yes” please generally describe in this cell the possible reason(s) and outline proposed remedies. (This should be described in more detail in the report text above.) NO 4. Does any known or suspected source zone soil contamination or free product remain outside of the assessed area that could be inhibiting natural attenuation? NO 5. Has there been an unexpected increase in contaminant mass sufficient to suggest a potential new release from a separate on-site or offsite source? NO 6. Certification: I, Michael J. Burns, PG, a Licensed Geologist for Kleinfelder do certify that the information contained in this report is correct and accurate to the best of my knowledge. Michael J. Burns, PG License No. 1645 Kleinfelder, Inc. is allowed to practice Geology | Engineering in North Carolina. The certification numbers of the corporation are C-521 | F-1312. 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder Page 9 of 9 www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd., Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 6 LIMITATIONS Kleinfelder offers various levels of investigative and engineering services to suit the varying needs of different clients. It should be recognized that definition and evaluation of geologic and environmental conditions are a difficult and inexact science. Judgments leading to conclusions and recommendations are generally made with incomplete knowledge of the subsurface conditions present due to the limitations of data from field studies. Although risk can never be eliminated, more detailed and extensive studies yield more information, which may help understand and manage the level of risk. Since detailed study and analysis involves greater expense, our clients participate in determining levels of service that provide adequate information for their purposes at acceptable levels of risk. The information included on graphic representations in the Corrective Action Plan Monitoring Report has been compiled from a variety of sources and is subject to change without notice. Kleinfelder makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. These documents are not intended for use as a land survey product, nor are they designed or intended as a construction design document. The use or misuse of the information contained on these graphic representations is at the sole risk of the party using or misusing the information. 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder www.kleinfelder.com TABLES Monitoring Well ID Date Installed Total Depth Drilled (ft bgs) Screened Interval (ft bgs) Top of Casing Elevation (feet) Well Diameter (inch) MW-5 1/16/2002 35.00 15-35 778.85 4 MW-6 1/16/2002 40.00 15-40 787.51 2 MW-7 1/17/2002 30.00 15-30 773.62 2 MW-8 1/17/2002 24.00 14-24 774.33 2 MW-9 6/12/2002 32.00 17-32 781.03 2 MW-10 8/27/2012 27.00 12-27 780.83 2 DW-1 1/18/2002 79.00 70-79 NS 2 DW-2 8/27/2012 44.00 34-44 778.26 2 DW-3 8/29/2012 44.00 34-44 780.95 2 INJ-1 8/28/2012 23.00 13-23 781.07 2 INJ-2 8/29/2012 23.00 13-23 778.89 2 Notes: ft bgs = feet below ground surface NS = Not Surveyed * Based on Groundwater Elevation Data Table; Arcadis 3/26/2019 Charlotte, North Carolina Table 1 Well Construction Details Former ExxonMobil Facility #42094 3721 Freedom Drive Kleinfelder 3200 Gateway Boulevard Suite 100, Morrisville, NC Monitoring Well ID Date Top of Casing Elevation Depth to Water (feet) Depth to Hydro- carbon (feet) Hydro- carbon Thickness (feet) Corrected GW Elevation (feet) Comments 3/29/2022 778.85 13.85 ND ND 765.00 3/23/2023 778.85 12.85 ND ND 766.00 Trace, Odor 3/29/2022 787.51 18.83 ND ND 768.68 3/23/2023 787.51 17.98 ND ND 769.53 3/29/2022 773.62 10.56 ND ND 763.06 3/23/2023 773.62 10.19 ND ND 763.43 3/29/2022 774.33 9.34 ND ND 764.99 3/23/2023 774.33 8.71 ND ND 765.62 3/29/2022 781.03 NM NM NM NM 3/23/2023 781.03 14.14 ND ND 766.89 3/29/2022 780.83 14.70 ND ND 766.13 3/23/2023 780.83 14.04 ND ND 766.79 3/29/2022 NSVD 13.56 ND ND NSVD 3/23/2023 NSVD 12.81 ND ND NSVD Sheen 3/29/2022 778.26 12.62 ND ND 765.64 3/23/2023 778.26 12.69 ND ND 765.57 Trace, Brownish grey 3/29/2022 780.95 NM NM NM NM 3/23/2023 780.95 14.67 ND ND 766.28 3/29/2022 781.07 NM NM NM NM 3/23/2023 781.07 13.97 ND ND 767.10 3/29/2022 778.89 13.64 ND ND 765.25 3/23/2023 778.89 12.59 ND ND 766.30 Sheen Notes: NM - Not Measured ND - Not Detected NSVD - Not surveyed to vertical datum INJ-2 MW-10 DW-1 DW-2 DW-3 INJ-1 MW-5 MW-6 MW-7 MW-8 MW-9 Gauging Data Table 2 Groundwater Elevations Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina March 29, 2022 to March 23, 2023 Kleinfelder 3200 Gateway Boulevard Suite 100, Morrisville, NC Table 3 Historical Groundwater Elevation Data Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina January 8,1991 through March 26, 2019 Monitoring Well I.D. Date Installed Gauging Date Total Casing Depth (ft bgs) Screened interval (ft bgs) Top of Casing Elevation (ft) Depth to Water (ft BTOC) Depth to Product (ft BTOC) Product Thickness (ft) Ground Water Elevation (ft ASL) Measured Depth to Bottom (ft) Well Diameter 1/8/1991 10.00 10-25 94.14 14.42 ----79.72 25.00 2" 1996 1/8/1991 10.00 10-25 92.85 12.77 ----80.08 25.00 2" 1996 2/14/2001 --19.74 --------1" 6/6/2001 --18.03 --------1" 10/12/2001 --21.15 21.11 0.04 ----1" 11/6/2001 --21.40 21.37 0.03 ----1" 12/4/2001 --21.81 21.80 0.01 ----1" 1/10/2002 --21.62 21.59 0.03 ----1" 1/8/1991 5 5-20 91.74 11.43 ----80.31 20.00 2" 1996 1/8/1991 10 10-25 97.02 15.50 ----81.52 25.00 2" 1996 MW-1 1/7/1991 Well Abandoned / Destroyed Well Abandoned / Destroyed1/7/1991 1/7/1991 Well Abandoned / Destroyed 2/13/2001 Well abandoned and replaced by MW-5 in January 2002 13.00 Well Abandoned / Destroyed 13-28 1/7/1991 MW-2 MW-2R MW-3 MW-4 Table 3 Historical Groundwater Elevation Data Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina January 8,1991 through March 26, 2019 Monitoring Well I.D. Date Installed Gauging Date Total Casing Depth (ft bgs) Screened interval (ft bgs) Top of Casing Elevation (ft) Depth to Water (ft BTOC) Depth to Product (ft BTOC) Product Thickness (ft) Ground Water Elevation (ft ASL) Measured Depth to Bottom (ft) Well Diameter 1/23/2002 96.52 21.10 20.75 0.35 75.68 --4" 2/5/2002 96.52 20.30 19.95 0.35 76.48 --4" 3/19/2002 96.52 19.50 19.35 0.15 77.13 --4" 4/13/2002 96.52 19.08 18.70 0.38 77.72 --4" 5/10/2002 96.52 19.13 19.12 0.01 77.40 --4" 6/27/2002 96.52 21.94 20.22 1.72 75.85 --4" 7/25/2002 96.52 22.79 21.11 1.68 74.97 --4" 8/15/2002 96.52 23.32 21.58 1.74 74.49 --4" 9/16/2002 96.52 23.26 21.55 1.71 74.53 --4" 10/4/2002 96.52 23.30 21.52 1.78 74.54 --4" 11/25/2002 96.52 21.16 19.05 2.11 76.92 --4" 12/23/2002 96.52 19.70 18.75 0.95 77.52 --4" 1/16/2003 96.52 18.68 18.30 0.38 78.12 --4" 2/19/2003 96.52 17.91 17.85 0.06 78.65 --4" 3/19/2003 96.52 19.72 19.63 0.09 76.87 --4" 4/22/2003 96.52 13.96 13.95 0.01 82.57 --4" 5/30/2003 96.52 12.64 12.63 0.01 83.89 --4" 6/27/2003 96.52 12.37 ----84.15 --4" 7/15/2003 96.52 12.36 12.35 0.01 84.17 --4" 8/11/2003 96.52 12.44 12.43 0.01 84.09 --4" 9/2/2003 96.52 12.39 12.38 0.01 84.14 --4" 11/22/2004 96.52 17.16 ----79.36 --4" 11/4/2005 96.52 20.99 ----75.53 --4" 10/5/2006 96.52 17.43 ----79.09 --4" 6/12/2007 96.52 16.35 ----80.17 --4" 6/19/2008 96.52 19.61 ----76.91 35.67 4" 4/28/2009 96.52 17.21 16.91 0.30 79.53 35.67 4" 12/3/2009 96.52 18.40 18.35 0.05 78.16 --4" 3/28/2010 96.52 14.81 ----81.71 --4" 4/2/2010 96.52 23.75 ----72.77 --4" 4/28/2010 96.52 15.57 ----80.95 --4" 6/28/2010 96.52 17.09 ----79.43 --4" 7/2/2010 96.52 21.59 ----74.93 --4" 10/21/2010 96.52 20.22 ----76.30 35.63 4" 5/17/2011 96.52 18.29 18.03 0.26 78.42 --4" 6/9/2011 96.52 18.53 18.27 0.26 78.18 35.63 4" 8/24/2011 96.52 20.40 20.38 0.02 76.13 --4" 9/19/2011 96.52 21.16 21.11 0.05 75.40 --4" 10/6/2011 96.52 20.66 ----75.86 --4" 10/12/2011 96.52 20.90 ----75.62 --4" 11/29/2011 96.52 20.43 ----76.09 --4" 12/19/2011 96.52 20.20 ----76.32 --4" 1/16/2012 96.52 19.41 ----77.11 --4" 2/6/2012 96.52 18.79 ----77.73 --4" 3/1/2012 96.52 18.73 ----77.79 --4" 5/17/2012 96.52 18.29 ----78.23 --4" 9/5/2012 778.85 19.96 ----758.89 --4" 11/18/2012 778.85 21.49 ----757.36 --4" 2/19/2013 778.85 19.53 ----759.32 35.30 4" 9/11/2013 778.85 18.55 -- -- 760.30 35.32 4" 3/20/2014 778.85 15.96 -- -- 762.89 -- 4" 9/18/2014 778.85 17.61 ----761.24 --4" 3/18/2015 778.85 17.00 ----761.85 --4" 3/22/2016 778.85 15.53 ----763.32 --4" 3/2/2017 778.85 18.96 ----759.89 --4" 7/12/2018 778.85 18.71 ----760.14 --4" 3/26/2019 778.85 12.01 -- -- 766.84 35.21 4" 15-35151/16/2002MW-5 Table 3 Historical Groundwater Elevation Data Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina January 8,1991 through March 26, 2019 Monitoring Well I.D. Date Installed Gauging Date Total Casing Depth (ft bgs) Screened interval (ft bgs) Top of Casing Elevation (ft) Depth to Water (ft BTOC) Depth to Product (ft BTOC) Product Thickness (ft) Ground Water Elevation (ft ASL) Measured Depth to Bottom (ft) Well Diameter 2/5/2002 105.17 28.24 ----76.93 --2" 10/5/2006 105.17 24.33 ----80.84 --2" 6/12/2007 105.17 22.94 ----82.23 --2" 4/28/2009 105.17 25.52 ----79.65 40.00 2" 12/3/2009 105.17 25.64 ----79.53 40.00 2" 4/28/2010 105.17 22.63 ----82.54 --2" 10/21/2010 105.17 24.61 ----80.56 40.00 2" 5/17/2011 105.17 26.22 ----78.95 40.03 2" 10/6/2011 105.17 27.97 ----77.20 --2" 3/1/2012 105.17 26.42 ----78.75 40.03 2" 9/5/2012 787.51 26.13 ----761.38 40.05 2" 11/18/2012 787.51 28.74 ----758.77 40.05 2" 2/19/2013 787.51 27.35 ----760.16 39.90 2" 9/11/2013 787.51 26.01 ----761.50 39.88 2" 3/20/2014 787.51 23.26 ----764.25 --2" 9/18/2014 787.51 24.58 ----762.93 --2" 3/18/2015 787.51 23.66 ----763.85 --2" 3/22/2016 787.51 21.85 ----765.66 --2" 3/2/2017 787.51 26.24 ----761.27 --2" 7/12/2018 787.51 25.54 ----761.97 --2" 3/26/2019 787.51 24.48 -- -- 763.03 39.80 2" 2/5/2002 91.33 16.41 ----74.92 --2" 11/22/2004 91.33 13.89 ----77.44 --2" 10/5/2006 91.33 13.77 ----77.56 --2" 6/12/2007 91.33 13.10 ----78.23 --2" 6/19/2008 91.33 15.33 ----76.00 29.88 2" 4/28/2009 91.33 13.32 ----78.01 30.02 2" 12/3/2009 91.33 14.44 ----76.89 30.00 2" 4/28/2010 91.33 12.13 ----79.20 --2" 10/21/2010 91.33 20.07 ----71.26 31.01 2" 5/17/2011 91.33 14.57 ----76.76 30.01 2" 10/6/2011 91.33 16.18 ----75.15 --2" 3/1/2012 91.33 14.75 ----76.58 30.01 2" 9/5/2012 773.62 15.51 ----758.11 29.90 2" 11/18/2012 773.62 16.98 ----756.64 29.90 2" 2/19/2013 773.62 15.07 ----758.55 29.90 2" 9/11/2013 773.62 14.88 ----758.74 29.90 2" 3/20/2014 773.62 12.40 ----761.22 --2" 9/18/2014 773.62 13.80 ----759.82 --2" 3/18/2015 773.62 12.92 ----760.70 --2" 3/22/2016 773.62 12.09 ----761.53 --2" 3/2/2017 773.62 14.92 ----758.70 --2" 7/12/2018 773.62 15.11 ----758.51 --2" 3/26/2019 773.62 9.67 -- -- 763.95 28.90 2" MW-6 1/16/2002 15 15-40 1/17/2002 15MW-7 15-30 Table 3 Historical Groundwater Elevation Data Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina January 8,1991 through March 26, 2019 Monitoring Well I.D. Date Installed Gauging Date Total Casing Depth (ft bgs) Screened interval (ft bgs) Top of Casing Elevation (ft) Depth to Water (ft BTOC) Depth to Product (ft BTOC) Product Thickness (ft) Ground Water Elevation (ft ASL) Measured Depth to Bottom (ft) Well Diameter 2/5/2002 92.59 16.98 ----75.61 --2" 11/22/2004 92.59 12.59 ----80.00 --2" 10/5/2006 92.59 13.86 ----78.73 --2" 6/12/2007 92.59 12.81 ----79.78 --2" 6/19/2008 92.59 16.16 ----76.43 23.84 2" 4/28/2009 92.59 13.52 ----79.07 23.97 2" 12/3/2009 92.59 14.97 ----77.62 24.00 2" 4/28/2010 92.59 12.16 ----80.43 --2" 10/21/2010 92.59 20.11 ----72.48 23.97 2" 5/17/2011 92.59 14.04 ----78.55 23.98 2" 10/6/2011 92.59 17.11 ----75.48 --2" 3/1/2012 92.59 15.15 ----77.44 23.98 2" 9/5/2012 774.33 16.39 ----757.94 24.00 2" 11/18/2012 774.33 17.67 ----756.66 24.00 2" 2/19/2013 774.33 16.18 ----758.15 23.90 2" 9/11/2013 774.33 15.20 ----759.13 23.86 2" 3/20/2014 774.33 12.04 ----762.29 --2" 9/18/2014 774.33 13.98 ----760.35 --2" 3/18/2015 774.33 12.60 ----761.73 --2" 3/22/2016 774.33 11.56 ----762.77 --2" 3/2/2017 774.33 15.15 ----759.18 --2" 7/12/2018 774.33 15.38 ----758.95 --2" 3/26/2019 774.33 8.36 -- -- 765.97 23.85 2" 1/17/2002 14MW-8 14-24 Table 3 Historical Groundwater Elevation Data Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina January 8,1991 through March 26, 2019 Monitoring Well I.D. Date Installed Gauging Date Total Casing Depth (ft bgs) Screened interval (ft bgs) Top of Casing Elevation (ft) Depth to Water (ft BTOC) Depth to Product (ft BTOC) Product Thickness (ft) Ground Water Elevation (ft ASL) Measured Depth to Bottom (ft) Well Diameter 9/16/2002 98.47 23.91 23.62 0.29 74.77 32.00 2" 10/4/2002 98.47 23.75 23.49 0.26 74.91 --2" 11/25/2002 98.47 21.19 ----77.28 --2" 12/23/2002 98.47 20.60 ----77.87 --2" 1/16/2003 98.47 20.03 ----78.44 --2" 2/19/2003 98.47 19.46 ----79.01 --2" 3/19/2003 98.47 19.03 18.72 0.31 79.67 --2" 4/22/2003 98.47 15.73 15.71 0.02 82.75 --2" 5/30/2003 98.47 14.65 14.64 0.01 83.83 --2" 6/27/2003 98.47 14.18 ----84.29 --2" 7/15/2003 98.47 14.11 ----84.36 --2" 8/11/2003 98.47 14.10 ----84.37 --2" 9/2/2003 98.47 14.00 ----84.47 --2" 11/22/2004 98.47 18.88 ----79.59 --2" 11/4/2005 98.47 20.90 ----77.57 --2" 10/5/2006 98.47 19.19 ----79.28 --2" 6/12/2007 98.47 18.00 ----80.47 --2" 6/19/2008 98.47 21.24 ----77.23 31.81 2" 4/28/2009 98.47 19.66 18.60 1.06 79.59 --2" 12/3/2009 98.47 20.22 20.20 0.02 78.26 --2" 3/28/2010 98.47 15.53 ----82.94 --2" 4/2/2010 98.47 21.10 ----77.37 --2" 4/28/2010 98.47 17.27 ----81.20 --2" 6/28/2010 98.47 18.81 ----79.66 --2" 7/2/2010 98.47 20.92 ----77.55 --2" 10/21/2010 98.47 21.73 ----76.74 32.02 2" 5/17/2011 98.47 19.88 ----78.59 31.95 2" 10/6/2011 98.47 22.73 22.00 0.73 76.27 --2" 10/12/2011 98.47 22.74 22.21 0.53 76.12 --2" 11//29/11 98.47 23.27 21.89 1.38 76.21 --2" 12/19/2011 98.47 22.23 21.91 0.32 76.47 --2" 1/16/2012 98.47 21.32 21.30 0.02 77.16 --2" 2/6/2012 98.47 20.65 ----77.82 --2" 3/1/2012 98.47 20.50 ----77.97 --2" 5/17/2012 98.47 20.30 ----78.17 --2" 9/5/2012 781.03 21.69 ----759.34 --2" 11/18/2012 781.03 23.04 ----757.99 --2" 2/19/2013 781.03 21.75 21.30 0.45 759.61 32.15 2" 3/11/2013 781.03 20.95 20.80 0.15 760.19 32.15 2" 4/8/2013 781.03 20.00 19.90 0.10 761.03 32.15 2" 5/28/2013 781.03 20.80 20.75 0.05 760.23 32.15 2" 6/17/2013 781.03 19.25 19.18 0.07 761.78 33.15 2" 7/29/2013 781.03 19.19 19.15 0.04 761.84 34.15 2" 8/26/2013 781.03 19.70 ----761.33 35.15 2" 9/11/2013 781.03 22.60 ----758.43 31.85 2" 9/13/2013 781.03 22.30 ----758.73 31.95 2" 10/21/2013 781.03 21.58 ----759.45 31.95 2" 11/18/2013 781.03 20.10 ----760.93 31.95 2" 12/2/2013 781.03 21.85 ----759.18 31.95 2" 1/7/2014 781.03 20.25 ----760.78 31.95 2" 2/4/2014 781.03 19.52 ----761.51 31.95 2" 3/11/2014 781.03 18.15 ----762.88 31.95 2" 3/20/2014 781.03 17.84 ----763.19 31.95 2" 4/7/2014 781.03 17.60 ----763.43 31.95 2" 5/5/2014 781.03 16.58 ----764.45 31.95 2" 9/18/2014 781.03 19.37 ----761.66 --2" 3/18/2015 781.03 18.20 ----762.83 --2" 3/22/2016 781.03 16.96 ----764.07 --2" 3/2/2017 781.03 20.56 ----760.47 --2" 7/12/2018 781.03 20.14 ----760.89 --2" 3/26/2019 781.03 13.72 -- -- 767.31 31.85 2" 17.00 17-326/12/2002MW-9 Table 3 Historical Groundwater Elevation Data Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina January 8,1991 through March 26, 2019 Monitoring Well I.D. Date Installed Gauging Date Total Casing Depth (ft bgs) Screened interval (ft bgs) Top of Casing Elevation (ft) Depth to Water (ft BTOC) Depth to Product (ft BTOC) Product Thickness (ft) Ground Water Elevation (ft ASL) Measured Depth to Bottom (ft) Well Diameter 9/5/2012 780.83 21.70 ----759.13 26.33 2" 11/18/2012 780.83 23.15 ----757.68 26.33 2" 2/19/2013 780.83 21.47 ----759.36 26.35 2" 9/11/2013 780.83 20.21 ----760.62 26.32 2" 3/20/2014 780.83 17.82 ----763.01 --2" 9/18/2014 780.83 19.45 ----761.38 --2" 3/18/2015 780.83 18.15 ----762.68 --2" 3/22/2016 780.83 16.88 ----763.95 --2" 3/2/2017 780.83 20.55 ----760.28 --2" 7/12/2018 780.83 20.20 ----760.63 --2" 3/26/2019 780.83 13.60 -- -- 767.23 26.31 2" 2/5/2002 96.32 20.60 ----75.72 --2" 10/5/2006 96.32 17.49 ----78.83 --2" 6/12/2007 96.32 16.55 ----79.77 --2" 6/19/2008 96.32 19.35 ----76.97 80.27 2" 4/28/2009 96.32 17.40 ----78.92 81.60 2" 12/3/2009 96.32 18.36 ----77.96 80.25 2" 4/28/2010 96.32 15.62 ----80.70 --2" 10/21/2010 96.32 19.43 ----76.89 80.49 2" 5/17/2011 96.32 18.04 ----78.28 80.31 2" 10/6/2011 96.32 20.48 ----75.84 --2" 3/1/2012 96.32 18.72 ----77.60 81.50 2" 9/5/2012 NS 19.82 ----NS 81.30 2" 11/18/2012 NS 21.33 ----NS 81.30 2" 2/19/2013 NS 19.55 ----NS 80.00 2" 9/11/2013 NS 18.74 ----NS 80.05 2" 3/2/2014 NS 16.02 ----NS --2" 9/18/2014 NS 17.61 ----NS --2" 3/18/2015 NS 16.30 ----NS --2" 3/22/2016 NS 15.39 ----NS --2" 3/2/2017 NS 18.80 ----NS --2" 7/12/2018 NS 18.80 ----NS --2" 3/26/2019 NS 12.42 -- -- NS 78.89 2" 9/5/2012 778.26 19.49 ----758.77 44.96 2" 11/18/2012 778.26 20.57 ----757.69 44.96 2" 2/19/2013 778.26 19.44 ----758.82 45.00 2" 9/11/2013 778.26 18.85 ----759.41 44.96 2" 3/2/2014 778.26 16.71 ----761.55 --2" 9/18/2014 778.26 17.24 ----761.02 --2" 3/18/2015 778.26 16.70 ----761.56 --2" 3/22/2016 778.26 15.03 ----763.23 --2" 3/2/2017 778.26 18.81 ----759.45 --2" 7/12/2018 778.26 18.62 ----759.64 --2" 3/26/2019 778.26 12.91 -- -- 765.35 45.05 2" 9/5/2012 780.95 21.52 ----759.43 43.75 2" 11/18/2012 780.95 22.83 ----758.12 43.75 2" 2/19/2013 780.95 21.50 ----759.45 43.40 2" 9/11/2013 780.95 19.66 ----761.29 43.73 2" 3/20/2014 780.95 18.20 ----762.75 --2" 9/18/2014 780.95 18.93 ----762.02 --2" 3/18/2015 780.95 18.36 ----762.59 --2" 3/22/2016 780.95 16.97 ----763.98 --2" 3/26/2019 780.95 13.94 -- -- 767.01 45.05 2" 8/27/2012 27 12-27 44 34-44 DW-3 8/29/2012 44 34-44 DW-2 8/27/2012 70-7965.001/18/2002DW-1 MW-10 Table 3 Historical Groundwater Elevation Data Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina January 8,1991 through March 26, 2019 Monitoring Well I.D. Date Installed Gauging Date Total Casing Depth (ft bgs) Screened interval (ft bgs) Top of Casing Elevation (ft) Depth to Water (ft BTOC) Depth to Product (ft BTOC) Product Thickness (ft) Ground Water Elevation (ft ASL) Measured Depth to Bottom (ft) Well Diameter 9/5/2012 781.07 21.65 ----759.42 23.00 2" 11/18/2012 781.07 22.71 ----758.36 23.00 2" 2/19/2013 781.07 21.39 ----759.68 23.00 2" 9/11/2013 781.07 20.15 ----760.92 23.02 2" 3/20/2014 781.07 17.20 ----763.87 --2" 9/18/2014 781.07 19.32 ----761.75 --2" 3/18/2015 781.07 17.93 ----763.14 --2" 3/22/2016 781.07 16.91 ----764.16 --2" 3/2/2017 781.07 20.53 ----760.54 --2" 7/12/2018 781.07 20.13 ----760.94 --2" 3/26/2019 781.07 13.59 -- -- 767.48 23.00 2" 9/5/2012 778.89 20.10 ----758.79 23.00 2" 11/18/2012 778.89 21.61 ----757.28 23.00 2" 2/19/2013 778.89 21.27 19.38 1.89 759.00 23.00 2" 3/11/2013 778.89 20.40 19.28 1.12 759.31 23.00 2" 4/8/2013 778.89 18.90 18.80 0.10 760.06 23.00 2" 5/28/2013 778.89 18.55 18.28 0.27 760.54 23.00 2" 6/17/2013 778.89 17.82 ----761.07 23.00 2" 7/29/2013 778.89 17.80 ----761.09 23.00 2" 8/26/2013 778.89 18.60 18.76 0.16 760.41 23.00 2" 9/11/2013 778.89 19.35 ----759.54 23.02 2" 9/13/2013 778.89 19.20 19.10 0.10 759.76 23.00 2" 10/21/2013 778.89 20.00 ----758.89 23.00 2" 11/18/2013 778.89 20.70 ----758.19 23.00 2" 12/2/2013 778.89 20.12 ----758.77 23.00 2" 1/7/2014 778.89 18.62 ----760.27 23.00 2" 2/4/2014 778.89 17.98 17.96 0.02 760.92 23.00 2" 3/11/2014 778.89 16.62 ----762.27 23.00 2" 3/20/2014 778.89 18.20 ----760.69 23.00 2" 4/7/2014 778.89 15.85 ----763.04 23.00 2" 5/5/2014 778.89 14.78 ----764.11 23.00 2" 9/18/2014 778.89 17.79 ----761.10 23.00 2" 3/18/2015 778.89 18.91 ----759.98 23.00 2" 3/22/2016 778.89 15.43 ----763.46 24.00 2" 3/2/2017 778.89 19.10 19.08 0.02 759.80 --2" 6/6/2017 778.89 16.76 ----762.13 --2' 7/12/2018 778.89 18.77 ----760.12 --2' 3/26/2019 778.89 12.06 -- -- 766.83 -- 2' Notes: Site resurveyed by ARCADIS U.S. Inc on 9/27/2012 NS = Not surveyed BTOC = Below top of well casing -- = Not measured or not available ft = feet ft ASL = feet below arbitrary site level bgs = below ground surface Groundwater elevation corrected for the presence of free product using the formula: Top of Casing Elevation - (Depth to Water - (Product Thickness x 0.73)) INJ-2 8/28 - 8/29/12 23 13-23 INJ-1 8/28/2012 23 13-23 Sample ID Date pH (pH units) Conductivity (µS/cm) Temperature (ºC) Dissolved Oxygen (mg/L) Turbidity (NTU) Oxidation Reduction Potential (mV) 3/29/2022 6.48 0.60 21.2 0.11 22.4 -77.5 3/23/2023 NM NM NM NM NM NM 3/29/2022 NM NM NM NM NM NM 3/23/2023 NM NM NM NM NM NM 3/29/2022 NM NM NM NM NM NM 3/23/2023 NM NM NM NM NM NM 3/29/2022 NM NM NM NM NM NM 3/23/2023 NM NM NM NM NM NM 3/29/2022 NM NM NM NM NM NM 3/23/2023 NM NM NM NM NM NM 3/29/2022 5.79 0.27 20.3 0.13 2.33 6.80 3/23/2023 NM NM NM NM NM NM 3/29/2022 NM NM NM NM NM NM 3/23/2023 NM NM NM NM NM NM 3/29/2022 6.54 0.56 20.5 0.04 7.95 -40.10 3/23/2023 NM NM NM NM NM NM 3/29/2022 NM NM NM NM NM NM 3/23/2023 NM NM NM NM NM NM 3/29/2022 NM NM NM NM NM NM 3/23/2023 NM NM NM NM NM NM 3/29/2022 NM NM NM NM NM NM 3/23/2023 NM NM NM NM NM NM Notes: µS/cm - microsiemen per centimeter mg/L - milligram per liter mV - millivolts NTU - nephelometric turbidity units ºC - degrees Celsius NM- not measured Charlotte, North Carolina March 29, 2022 to March 23, 2023 3721 Freedom Drive Table 4 Field Natural Attenuation Data Former ExxonMobil Facility #42094 MW-5 MW-6 MW-7 MW-8 MW-9 INJ-2 MW-10 DW-1 DW-2 DW-3 INJ-1 Kleinfelder 3200 Gateway Boulevard Suite 100, Morrisville, NC Table 5 Historical Field Natural Attenuation Data Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina September 5, 2012 through March 26, 2019 9/5/2012 24.30 5.88 0.06 196 8.79 -55.5 11/19/2012 22.31 6.30 0.13 610 71.26 -17.8 2/20/2013 20.29 6.31 0.86 904 28.54 -180.8 9/12/2013 23.76 6.10 0.08 505 7.15 -119.6 3/20/2014 21.47 6.30 0.39 0.698 7.21 -72.0 9/18/2014 25.45 6.17 0.30 0.525 -- -42.5 3/18/2015 21.03 6.38 0.26 0.597 3.80 -50.8 3/22/2016 21.35 6.34 0.97 0.562 4.73 -25.0 3/2/2017 20.59 6.59 0.48 0.749 2.76 -23.3 7/12/2018 22.85 6.08 0.11 0.496 1.60 -32.9 3/26/2019 19.35 5.97 -0.08 0.295 12.24 -109.4 9/5/2012 23.06 4.96 1.06 87 24.0 135.0 11/19/2012 20.35 5.50 1.65 9.6 132.8 120.0 2/20/2013 19.68 5.33 2.12 105 86.87 76.8 9/12/2013 23.56 5.24 1.79 108 10.29 13.2 9/5/2012 25.33 6.13 0.18 174 22.9 91.5 11/19/2012 20.73 6.23 0.18 181 448.0 93.8 2/19/2013 16.01 6.21 1.37 189 227.1 84.8 9/12/2013 28.22 6.14 0.19 199 255.8 -31.0 9/6/2012 24.21 5.62 0.38 104 21.9 116.9 11/19/2012 21.22 5.87 0.22 121 166.6 134.9 2/20/2013 20.73 5.81 0.59 124 89.84 33.0 9/12/2013 25.55 5.71 0.25 138 59.29 -18.7 9/6/2012 22.77 6.03 0.18 320 17.10 19.9 11/19/2012 17.74 6.31 0.16 677 42.44 -12.0 9/11/2013 23.80 5.95 0.10 617 498.6 -57.0 3/20/2014 18.50 6.20 0.49 0.516 16.4 -54.3 9/19/2014 21.45 6.22 0.23 0.584 9.71 -10.4 3/18/2015 21.21 6.23 0.22 0.493 4.20 9.7 3/22/2016 20.06 6.31 1.46 0.459 9.01 9.4 3/2/2017 20.02 6.37 0.55 0.466 3.19 24.0 7/12/2018 22.26 6.08 0.40 0.461 5.56 -5.2 3/26/2019 19.09 6.16 0.12 0.394 7.71 -80.2 9/6/2012 22.84 5.64 6.33 144 4.50 126.2 11/19/2012 19.17 5.79 0.26 169 28.93 118.5 2/20/2013 17.04 5.99 1.01 252 40.37 -51.6 9/11/2013 28.32 5.44 0.32 111 3.68 24.8 3/20/2014 18.83 5.55 0.59 0.0092 0.37 137.8 9/19/2014 23.48 5.38 0.47 0.098 1.38 162.0 3/18/2015 20.39 7.65 0.70 0.089 2.80 883.0 3/22/2016 20.18 5.55 0.94 0.104 2.65 126.8 Turbidity (NTU) MW-7 MW-5 DO (mg/L) ORP (mV)Well ID Date Temp (°C) pH (SU) MW-10 Cond. (µmhos/c MW-6 MW-8 MW-9 Kleinfelder 3200 Gateway Boulevard Suite 100, Morrisville, NC Table 5 Historical Field Natural Attenuation Data Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina September 5, 2012 through March 26, 2019 9/5/2012 23.59 5.66 0.09 166 1.69 -45.0 11/19/2012 21.55 6.60 0.08 177 4.57 -101.8 2/20/2013 20.37 6.55 0.72 185 6.03 -252.9 9/12/2013 24.80 6.40 0.34 260 110.5 -70.8 9/6/2012 26.03 6.20 1.24 380 57.1 -102.9 11/19/2012 23.20 6.25 0.17 418 170.5 11.6 2/20/2013 17.99 6.37 1.37 446 80.99 -151.3 9/12/2013 23.62 6.10 0.40 429 212.5 -32.5 3/20/2014 20.25 6.31 0.66 0.345 4.4 4.5 9/18/2014 24.90 6.28 0.48 0.368 -- 1.6 3/18/2015 21.17 6.44 0.33 0.313 -- -18.7 3/22/2016 20.99 6.29 0.78 0.382 11.62 12.5 3/2/2017 19.82 6.58 0.56 0.634 2.01 3.2 7/12/2018 23.05 6.14 0.36 0.645 20.0 8.6 3/26/2019 18.59 6.15 0.24 0.550 34.4 -65.1 9/6/2012 21.92 5.75 3.97 258 11.4 109.0 11/19/2012 18.65 6.04 0.16 286 9.93 16.9 2/20/2013 18.55 5.94 0.62 274 47.28 3.0 9/11/2013 25.65 5.81 0.58 323 114.9 -9.1 Notes: 1. °C = degrees Centigrade 2. DO = dissolved oxygen 3. mg/L = milligrams per liter 4. mS/cm = milliSiemens per centimeter 5. mV = millivolts 6. ORP = oxygen-reduction potential 7. -- = parameter not collected 8. * Data collected by Arcadis DW-3 DW-2 DW-1 Kleinfelder 3200 Gateway Boulevard Suite 100, Morrisville, NC Sample ID Date Benzene (µg/L) Ethyl- benzene (µg/L) MTBE (µg/L) n-Butyl- benzene (µg/L) sec-Butyl- benzene (µg/L) Toluene (µg/L) Total Xylenes (µg/L) 1 600 20 70 70 600 500 5000 84500 20000 6900 8500 260000 85500 3/29/2022 21000 1300 <20 <20 <20 16000 8400 3/23/2023 19000E 1200 <100 <100 <100 14000E 7800 3/29/2022 NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS 3/23/2023 7700 2300 410 <100 <100 15000 16000 3/29/2022 2500 2800 390 <10 <10 15000 19000 3/23/2023 NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS 3/29/2022 1400 <10 270 <10 <10 <10 <20 3/23/2023 2500 <50 130 <50 <50 <50 110 3/29/2022 NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS Notes: <1.0 - Not detected at or above the laboratory reporting limit shown µg/L - micrograms per liter GCL - Gross Contamination Level MTBE - methyl tert-butyl ether Shading (Light) - Reported concentration detected above the 2L standard Shading (Dark) - Reported concentration detected above the GCLs NS - Not Sampled E - Result exceeded calibration range INJ-2 MW-10 DW-1 DW-2 DW-3 INJ-1 MW-5 MW-6 MW-7 MW-8 MW-9 2L Standard Analytical Data GCL Table 6 Groundwater Sample Analytical Results Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina March 29, 2022 to March 23, 2023 Kleinfelder 3200 Gateway Boulevard Suite 100, Morrisville, NC Sample ID Date 1,2,4-TMB (µg/L) EDB (µg/L) 1,2- Dichloro- ethane (µg/L) 1,2- Dichloro- propane (µg/L) 1,3,5-TMB (µg/L) 4-Isopropyl- toluene (µg/L) Chloro- ethane (µg/L) Chloro- form (µg/L) DIPE (µg/L) Ethanol (µg/L) Naph- thalene (µg/L) Propyl- benzene (µg/L) 400 0.02 0.4 0.6 400 NE 3 70 70 4000 6 70 28500 50 400 600 25000 NE 3000 70000 70000 4000000 6000 30000 3/29/2022 920 <20 200 <20 280 <100 <100 <100 2000 <12000 *+ F1 410 <20 3/23/2023 980 <100 130 <100 300 <100 <100 <100 1300 F1 <40000 400 <100 3/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS 3/23/2023 2900 <100 <100 <100 830 <100 <100 <100 990 <40000 1000 230 3/29/2022 2300 <10 <10 <10 730 <50 <50 <50 390 <6000 *+1200 220 3/23/2023 NS NS NS NS NS NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS NS NS NS NS NS 3/29/2022 <10 <10 370 <10 <10 <50 <50 <50 5400 <6000 *+<20 <10 3/23/2023 <50 <50 260 <50 <50 <50 <50 <50 3200 <20000 <50 <50 3/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS NS NS NS NS NS 3/29/2022 NS NS NS NS NS NS NS NS NS NS NS NS 3/23/2023 NS NS NS NS NS NS NS NS NS NS NS NS Notes: <1.0 - Not detected at or above the laboratory reporting limit shown µg/L - micrograms per liter GCL - Gross Contamination Level DIPE - diisopropyl ether EDB - 1,2 Dibromoethane TMB - Trimethylbenzene F1 - MS and/or MSD recovery exceeds control limits *+ - LCS and/or LCSD is outside acceptance limits, high biased Shading (Light) - Reported concentration detected above the 2L standard Shading (Dark) - Reported concentration detected above the GCLs NS - Not Sampled March 29, 2022 to March 23, 2023 2L Standard Analytical Data GCL Table 6 Continued Groundwater Sample Analytical Results Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina MW-5 MW-6 MW-7 MW-8 MW-9 INJ-2 MW-10 DW-1 DW-2 DW-3 INJ-1 Kleinfelder 3200 Gateway Boulevard Suite 100, Morrisville, NC Table 7 Historical Groundwater Analytical Results Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina December 1, 1990 through March 26, 2019 504.1/6200B 3030C 300 Well ID Date NE NE NE NE 5,000 260,000 84,500 85,500 20,000 70,000 400 70,000 100,000 600 6,900 8,500 30,000 25,000 6,000 3,000 700 70,000 25,000 28,500 NE 50 15,000 NE NE NE NE NE 12/1/1990 -- -- -- 564 509 6 2 47 18 193 ND 13 -- -- -- -- -- -- -- ND ND -- -- -- -- ND -- -- -- -- -- -- 2/1/1991 -- -- -- 1,654 1,500 36 ND 118 ND 1,800 -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 5/1/1991 -- -- -- 649 590 16 ND 43 44 410 -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 8/1/1991 -- -- -- 849 830 7 2 10 ND 300 -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 10/1/1991 -- -- -- 702 630 25 8 39 4 180 -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 1/1/1992 -- -- -- 492 440 16 7 29 55 200 -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 10/1/1992 -- -- -- 106 86 9 2.7 8.2 11 170 -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 3/1/1993 -- -- -- 236 170 16 13 37 16 190 -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 12/1/1990 -- -- -- 13,720 6,355 2,083 1,206 4,076 757 1,377 ------------------ND ------------------------ 2/1/1991 -- -- -- 71,500 29,000 30,000 2,000 10,500 ND 4,700 ------------------ND ------------------------ 5/1/1991 -- -- -- 76,000 32,000 31,000 2,200 10,800 ND 4,700 ------------------ND ------------------------ 8/1/1991 -- -- -- 66,700 28,000 27,000 1,800 9,900 ND 5,000 ------------------ND ------------------------ 10/1/1991 -- -- -- 69,300 28,000 29,000 2,000 10,300 ND 4,100 ------------------ND ------------------------ 3/1/1993 -- -- -- 51,400 21,000 21,000 1,400 8,000 ND 3,000 ------------------ND ------------------------ 3/1/1994 -- -- -- 43,040 17,000 17,300 1,280 7,460 ND 3,680 ------------------ND ------------------------ 1/1/1995 -- -- -- 114,800 53,600 43,200 2,700 15,300 ND --1,200 ND --------------ND ND --------700 ------------ 2/6/1996 -- -- -- 139,500 27,400 43,200 10,100 58,800 ND 7,480 600 400 --------------ND 880 --------ND ------------ 11/5/1997 -- -- -- 20,150 2,950 2,480 1,690 13,030 5,000 ND ND ND -- -- -- -- -- -- -- ND ND -- -- -- -- ND -- -- -- -- -- -- 2/14/2001 ND ND ND 101,900 45,400 37,900 2,000 16,600 ND 13,800 1,550 ND --------------ND ND --------550 83 ---------- 12/1/1990 -- -- -- 3 ND ND ND 3 ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 2/1/1991 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 5/1/1991 -- -- -- 13 5 6 ND 2 ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 8/1/1991 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 1/1/1992 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 10/1/1992 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 3/1/1993 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 2/1/1991 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 5/1/1991 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 8/1/1991 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 10/1/1991 -- -- -- 40 17 15 2 6 ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 1/1/1992 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 10/1/1992 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 3/1/1993 -- -- -- ND ND ND ND ND ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 12/1/1990 -- -- -- 3 ND ND ND 3 ND ND -- -- -- -- -- -- -- -- -- ND -- -- -- -- -- -- -- -- -- -- -- -- 1/23/2002 102,000 15,900 ND 60,940 33,200 18,700 1,240 7,800 680 8,910 2,390 ND ND 1.7 ----------2.2 5.8 --------260 122 ---------- 6/19/2008 ------81,390 34,000 28,700 2,390 16,300 311 7,020 -------------------------------------------- 4/28/2010 ------68,750 31,100 24,100 1,750 11,800 302 6,360 -------------------------------------------- 10/21/2010 ------64,610 25,800 25,100 1,610 12,100 210 5,400 -------------------------------------------- 10/6/2011 ------64,110 31,800 20,800 2,240 9,270 114 5,850 1,710 276 0.950 <0.500 55.0 8.23 185 61.9 947 8.96 6.33 402 490 1,750 398 136 ------------ 3/1/2012 ------43,810 22,200 13,000 1,760 6,850 59.8 2,760 1,110 224 <10.0 RL1 <10.0 RL1 56.2 <10.0 RL1 202 55.6 970 12.6 <10.0 RL1 317 478 1,630 <2,000 RL1 56.98 ------------ 9/5/2012 ------66,830 30,300 24,400 1,730 10,400 116 6,650 1,820 225 1.40 <0.500 59.2 7.24 145 46.9 848 25.0 13.8 524 546 1,730 <100 184 --1.07 <0.0100 7.05 <0.0500 24.3 11/19/2012 ------24,361 13,000 6,120 841 4,400 65.6 3,060 796 102 <50 <50 66.4 <50 <50 <50 <500 <50 <50 <50 343 1,170 <10,000 <50.0 ------------ 2/20/2013 ------27,986 15,300 7,720 816 4,150 86.5 4,600 928 133 <5.00 <5.00 37.4 5.47 86.3 25.3 431 8.99 9.06 144 290 952 <1,000 81.6 ------------ 9/12/2013 ------25,023 10,100 8,430 503 5,990 25.7 2,460 554 106 <5.00 <5.00 27.5 <5.00 46.6 13.4 254 28.7 17.3 159 352 932 <1,000 171 ------------ 3/20/2014 -- -- -- 42,470 17,100 15,200 1,020 9,150 78.0 3,580 1,050 195 <5.00 <5.00 42.9 5.98 82.9 26.9 498 37.7 24.5 273 449 1,340 <1,000 151 ------------ 9/18/2014 -- -- -- 41,407 19,000 15,100 757 6,550 61.6 4,760 1,090 235 <5.00 <5.00 22.5 <5.00 52.1 17.4 387 24.5 11.7 260 289 920 <1,000 240 ------------ 3/18/2015 -- -- -- 44,155 20,600 14,800 915 7,840 76.5 4,210 <5.00 269 <5.00 <5.00 <5.00 <5.00 66.4 21.5 458 36.5 19.4 <5.00 341 1,020 <1,000 155 ------------ 3/22/2016 -- -- -- 52,000 27,400 14,600 1,160 8,840 64.9 4,030 <25.0 340 <25.0 <25.0 47.0 <25.0 69.6 <25.0 391 34.1 <25.0 <25.0 407 1,200 <5,000 *144 ------------ 3/2/2017 -- -- -- 31,050 23,100 <25.0 970 6,980 52.0 3,650 <25.0 267 <25.0 <25.0 38.2 <25.0 66.8 <25.0 306 33.1 <25.0 <25.0 272 916 <5,000 <25.0 ------------ 7/12/2018 -- -- -- 33,950 16,000 11,000 850 6,100 <100 2,000 260 270 <100 <100 <100 <100 <100 <100 380 <100 <100 240 270 920 <40,000 140 ------------ 3/26/2019 -- -- -- 26,400 7,500 11,000 800 7,100 <100 700 110 380 <100 <100 <100 <100 <100 <100 370 <100 <100 <100 260 850 <40,000 150 -- -- -- -- -- -- 1/23/2002 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- ND ND -- -- -- -- ND ND -- -- -- -- -- 12/3/2009 -- -- -- ND <1.00 <1.00 <1.00 <3.00 <1.00 <1.00 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5/17/2011 -- -- -- ND <0.500 <0.500 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 <0.500 <0.500 <0.500 <0.500 <0.500 -- <0.500 -- -- -- -- -- -- 9/5/2012 -- -- -- ND <0.500 <0.500 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 <0.500 <0.500 <0.500 <0.500 <0.500 <100 <0.500 -- <1.00 <0.0100 0.388 <0.0500 11.0 11/19/2012 -- -- -- 74 24.2 31.0 2.54 16.0 <0.500 2.44 1.84 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 <0.500 <0.500 <0.500 0.604 1.67 <100 <0.500 -- -- -- -- -- -- 2/20/2013 -- -- -- 101 16.5 35.4 4.67 44.6 <0.500 0.881 <0.500 <0.500 <0.500 <0.500 0.916 <0.500 1.01 <1.00 <5.00 <0.500 <0.500 <0.500 4.95 15.9 <100 <0.500 -- -- -- -- -- -- 9/12/2013 -- -- -- 3.147 0.765 1.50 <0.50 0.882 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 <0.500 <0.500 <0.500 <0.500 <0.500 <100 <0.500 -- -- -- -- -- -- 1,2-DichloroethaneContaminate of Concern--> C5-C8 Aliphatics (Unadjusted)MW-6 MW-4 Toluene IPEMADEP VPH/EPH (µg/L)Volatile Organic Compounds by SM6200 B (historical data used 602/6230D) (µg/L)1 MW-1 MW-2 Ethylbenzene Total xylenes Total BTEXIsopropylbenzeneCalcium (mg/L)1,3,5-TrimethylbenzeneGCLs---> MW-2R Sulfate (mg/L) MTBE1,2,4-Trimethylbenzene1,2-Dichloropropane Lead (µg/L)n-Butylbenzene cis-1,2-DichloroetheneZinc (mg/L)Ethanoltrans-1,2-DichloroetheneTetrachloroetheneArsenic (mg/L)Naphthalene TrichloroetheneMW-3 Well Abandoned/Destroyed C9-C12 Aliphatics (Unadjusted) C9-C10 Aromatics Benzenesec-ButylbenzeneStyrenen-PropylbenzeneWell abandoned and replaced by MW-5 in January 2002 6010C - Metals Well Abandoned/Destroyed Well Abandoned/Destroyed Well Abandoned/Destroyed Iron (mg/L) EDBMethods---> MW-5 Kleinfelder 3200 Gateway Boulevard Suite 100, Morrisville, NC Table 7 Historical Groundwater Analytical Results Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina December 1, 1990 through March 26, 2019 504.1/6200B 3030C 300 Well ID Date NE NE NE NE 5,000 260,000 84,500 85,500 20,000 70,000 400 70,000 100,000 600 6,900 8,500 30,000 25,000 6,000 3,000 700 70,000 25,000 28,500 NE 50 15,000 NE NE NE NE NE 1,2-DichloroethaneContaminate of Concern--> C5-C8 Aliphatics (Unadjusted) Toluene IPEMADEP VPH/EPH (µg/L)Volatile Organic Compounds by SM6200 B (historical data used 602/6230D) (µg/L)1 Ethylbenzene Total xylenes Total BTEXIsopropylbenzeneCalcium (mg/L)1,3,5-TrimethylbenzeneGCLs--->Sulfate (mg/L) MTBE1,2,4-Trimethylbenzene1,2-Dichloropropane Lead (µg/L)n-Butylbenzene cis-1,2-DichloroetheneZinc (mg/L)Ethanoltrans-1,2-DichloroetheneTetrachloroetheneArsenic (mg/L)Naphthalene Trichloroethene C9-C12 Aliphatics (Unadjusted) C9-C10 Aromatics Benzenesec-ButylbenzeneStyrenen-Propylbenzene6010C - Metals Iron (mg/L) EDBMethods---> 1/23/2002 1,880 ND ND 42 40.3 1.7 ND ND 12.4 114 3.3 170 5.5 ND -- -- -- -- -- 940 5,760 --------ND 7 ---------- 12/3/2009 -- -- -- 37.96 31 <1.00 <1.00 6.96 3.34 <1.00 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5/17/2011 -- -- -- 7.39 7.39 <0.500 <0.500 <1.00 0.72 19.0 3.5 204 3.44 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 571 2,290 <0.500 <0.500 <0.500 --<0.500 ------------ 10/6/2011 -- -- -- 4.86 4.86 <0.500 <0.500 <0.500 0.740 15.0 2.50 222 3.25 <0.500 <0.500 0.540 <0.500 <1.00 <5.00 611 2,300 <0.500 <0.500 <0.500 <0.500 <0.500 ------------ 3/1/2012 ------5.78 5.78 <0.500 <0.500 <0.500 0.800 16.2 2.91 177 3.44 <0.500 <0.500 0.540 <0.500 <1.00 <5.00 603 2,210 <0.500 <0.500 <0.500 <100 <0.500 ------------ 9/5/2012 ------1.76 1.76 <0.500 <0.500 <0.500 1.31 <0.500 <0.500 114 0.989 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 194 651 <0.500 <0.500 <0.500 <100 <0.500 --3.92 <0.0100 0.478 <0.0500 16.3 11/19/2012 ------49.44 7.01 28.6 2.13 11.7 1.28 1.81 <0.500 106 1.40 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 176 633 <0.500 <0.500 1.08 <100 <0.500 ------------ 2/19/2013 ------7.50 1.51 2.89 0.520 2.58 1.25 <0.500 1.120 79.3 0.700 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 131 464 <0.500 <0.500 0.61 <100 <0.500 ------------ 9/12/2013 ------13.58 3.25 4.75 0.634 4.95 0.72 0.905 <0.500 59.5 0.726 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 132 299 <0.500 <0.500 1.19 <100 <0.500 -- -- -- -- -- -- 1/23/2002 289 ND ND ND ND ND ND ND 1.6 85.2 ND 78.2 ND ND -- -- -- -- -- 60.5 422 -- -- -- -- ND ND -- -- -- -- -- 12/3/2009 -- -- -- ND <1.00 <1.00 <1.00 <3.00 4.84 <1.00 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5/17/2011 -- -- -- ND <0.500 <0.500 <0.500 <1.00 <0.500 <0.500 <0.500 11.8 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 11.7 19.8 <0.500 <0.500 <0.500 -- <0.500 -- -- -- -- -- -- 9/6/2012 -- -- -- 59.82 10.1 26.1 3.62 20.0 <0.500 0.947 <0.500 11.2 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 5.33 11.1 0.609 1.22 3.89 <100 <0.500 -- 13.6 <0.0100 0.150 <0.0500 9.71 11/19/2012 -- -- -- 36.68 5.88 28.4 2.40 <0.500 <0.500 <0.500 <0.500 7.26 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 4.45 10.0 <0.500 0.709 2.39 <100 <0.500 -- -- -- -- -- -- 2/20/2013 -- -- -- 37.10 17.3 17.2 2.60 15.5 <0.500 0.874 <0.500 4.39 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 3.74 10.9 <0.500 1.21 3.60 <100 <0.500 -- -- -- -- -- -- 9/12/2013 -- -- -- 4.07 1.58 2.49 <0.500 1.93 <0.500 <0.500 <0.500 10.7 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <5.00 7.50 11.7 <0.500 <0.500 <0.500 <100 <0.55 -- -- -- -- -- -- 6/19/2008 -- -- -- 31,520 10,400 11,400 1,340 8,380 6,140 4,380 -------------------------------------------- 4/28/2010 -- -- -- 31,390 5,420 15,300 1,470 9,200 1,020 1,790 -------------------------------------------- 10/21/2010 -- -- -- 38,720 10,300 15,800 1,520 11,100 9,060 5,500 -------------------------------------------- 5/17/2011 -- -- -- 50,710 12,100 20,200 2,510 15,900 4,700 3,810 <25.0 RL1 <25.0 RL1 <25.0 RL1 <25.0 RL1 99.5 <25.0 RL1 289 84.5 1,030 <250 RL1 <250 RL1 525 740 2,760 <2,500 RL1 <25.0 RL1 ------------ 3/1/2012 ------38,670 12,500 16,800 1,650 7,720 5,320 3,330 <10.0 RL1 <10.0 RL1 <10.0 RL1 <10.0 RL1 63.6 <10.0 RL1 217 58.0 1,090 <10.0 RL1 <10.0 RL1 285 512 1,810 <2,000 RL1 0.3343 ------------ 9/6/2012 ------39,880 11,600 16,800 1,850 9,630 6,360 4,080 <0.500 <0.500 <0.500 <0.500 75.6 10.1 215 59.5 697 <0.500 <0.500 334 502 1,780 <100 <0.500 --<1.00 <0.0100 11.4 <0.0500 39.9 11/19/2012 ------33,110 9,350 14,300 1,320 8,140 6,960 4,400 <50 <50 <50 <50 85.8 <50 184 <50 <500 <50 <50 259 471 1,740 14,500 <50 ------------ 9/11/2013 ------59,650 15,300 24,600 3,450 16,300 5,930 7,380 <10.0 <10.0 <10.0 <10.0 656 76.4 888 201 2,050 <10.0 <10.0 700 2,020 3,950 <2,000 <10.0 ------------ 3/20/2014 ------50,170 10,000 22,000 1,970 16,200 2,130 2,880 <10.0 <10.0 <10.0 <10.0 124 18.6 263 64.6 952 <10.0 <10.0 481 859 3,000 <2,000 <10.0 ------------ 9/19/2014 ------55,840 14,500 27,000 1,840 12,500 3,280 5,260 <10.0 <10.0 <10.0 <10.0 67.9 12.1 194 47.2 806 <10.0 <10.0 463 544 2,000 <2,000 <10.0 ------------ 3/18/2015 ------51,960 13,600 23,500 1,960 12,900 3,170 4,630 <10.0 <10.0 <10.0 <10.0 65.9 <10.0 193 48.9 801 <10.0 <10.0 <10.0 555 1,900 <2,000 <10.0 ------------ 3/22/2016 ------36,260 8,450 14,100 1,510 12,200 1,370 2,180 <25.0 <25.0 <25.0 <25.0 73.6 <25.0 150 <25.0 646 <25.0 <25.0 <25.0 547 1,920 <5000 *<25.0 ------------ 3/2/2017 ------38,880 8,470 18,000 1,610 10,800 1,990 2,310 <25.0 <25.0 <25.0 <25.0 52.8 <25.0 132 <25.0 534 <25.0 <25.0 <25.0 360 1,430 <5,000 <25.0 ------------ 7/12/2018 ------40,300 8,700 18,000 1,600 12,000 2,300 2,000 <100 <100 <100 <100 <100 <100 140 <100 730 <100 <100 370 470 1,800 <40,000 <100 ------------ 3/26/2019 ------12,230 1,500 4,000 630 6,100 68 150 <25 <25 <25 <25 <25 <25 75 <25 330 <25 <25 <25 370 1,100 <10,000 <25 -- -- -- -- -- -- 9/6/2012 ------54,900 12,400 27,300 2,400 12,800 4,560 2,960 <0.500 <0.500 <0.500 <0.500 53.4 7.70 195 66.5 766 <0.500 <0.500 426 500 1,770 <100 8.90 --2.65 <0.0100 <0.100 <0.0500 19.7 11/19/2012 ------47,590 10,100 23,800 1,990 11,700 3,050 2,230 198 <0.500 <0.500 <0.500 82.6 9.80 206 52.2 893 <0.500 <0.500 367 535 2,130 <100 <0.500 ------------ 2/20/2013 ------49,320 9,590 23,600 2,230 13,900 3,090 2,050 <10.0 <10.0 <10.0 <10.0 66.4 13.2 229 58.2 899 <10.0 <10.0 434 621 2,350 <2,000 <10.0 ------------ 9/11/2013 ------49,420 7,130 26,700 2,190 13,400 206 988 <10.0 <10.0 <10.0 <10.0 52.5 <10.0 198 49.4 955 <10.0 <10.0 440 524 1,910 <2,000 <10.0 ------------ 3/20/2014 ------58,230 5,590 29,600 3,140 19,900 115 674 <10.0 <10.0 <10.0 <10.0 83.9 14.9 276 72.9 1,270 <10.0 <10.0 698 876 3,160 <2,000 <10.0 ------------ 9/19/2014 ------62,700 5,820 34,900 2,880 19,100 85.5 709 223 <10.0 <10.0 <10.0 61.2 13.7 240 61.9 1,230 <10.0 <10.0 645 694 2,640 <2,000 <10.0 ------------ 3/18/2015 ------46,340 4,670 23,900 2,370 15,400 235 604 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 190 <10.0 1,080 <10.0 <10.0 <10.0 600 2,050 <2,000 <10.0 ------------ 3/22/2016 ------44,580 3,510 18,400 2,770 19,900 316 412 <10.0 <10.0 <10.0 <10.0 54.6 15.2 225 58.9 1,120 <10.0 <10.0 <10.0 734 2,670 <2,000 * <10.0 -- -- -- -- -- -- 1/23/2002 1,070 ND ND 221 219 2.2 ND ND 44.3 464 167 2.2 ND ND -- -- -- -- -- 1.5 5.7 -- -- -- -- ND ND -- -- -- -- -- 12/3/2009 -- -- -- ND <1.00 <1.00 <1.00 <3.00 30.7 161 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 5/17/2011 -- -- -- ND <0.500 <0.500 <0.500 <1.00 60.6 275 39.3 1.43 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 0.59 2.84 <0.500 <0.500 <0.500 -- <0.500 -- -- -- -- -- -- 9/5/2012 -- -- -- 2 <0.500 1.17 <0.500 1.27 25.4 108 9.80 1.23 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 <0.500 1.08 <0.500 0.549 <0.500 <100 <0.500 -- 3.22 <0.0100 <0.100 <0.0500 20.8 11/19/2012 -- -- -- 17.98 8.48 9.5 <5.00 <5.00 <5.00 12.1 <5.00 <5.00 <5.00 <5.00 <5.00 <5.00 <5.00 <5.00 <50 <5.00 <5.00 <5.00 <5.00 <5.00 <1,000 <5.00 -- -- -- -- -- -- 2/20/2013 -- -- -- 140.70 50.1 56.4 <5.00 34.2 <5.00 17.0 <5.00 <5.00 <5.00 <5.00 <5.00 <5.00 <5.00 <10.0 <50.0 <5.00 <5.00 <5.00 <5.00 5.41 <1,000 <5.00 -- -- -- -- -- -- 9/12/2013 -- -- -- 14.41 8.52 3.51 <0.500 2.38 38.5 184 <5.00 0.877 <5.00 <5.00 <5.00 <5.00 <5.00 <1.00 <5.00 <0.500 0.92 <5.00 <0.500 <0.500 <100 <0.500 -- -- -- -- -- -- 9/6/2012 -- -- -- 8,864 8,450 179 61.6 173 1,080 9,500 1,830 71.6 0.537 <0.500 <0.500 4.31 61.7 47.2 261 2.09 2.01 25.6 20.2 54.9 <100 <0.500 --2.94 <0.0100 0.453 <0.0500 44.4 11/19/2012 -- -- -- 10,479 10,200 142 45.6 91.1 991 10,100 1,490 46.8 <0.500 <0.500 13.5 4.50 66.5 44.1 259 1.52 1.58 22.1 9.52 18.8 <100 <0.500 ------------ 2/20/2013 -- -- -- 5,951 5,850 50.2 25.5 25.6 1,040 8,160 1,470 <5.00 <5.00 <5.00 7.30 <5.00 40.8 32.7 196 <5.00 <5.00 12.1 <5.00 <5.00 <1,000 <5.00 ------------ 9/12/2013 -- -- -- 7,254 7,180 39.1 19.8 14.7 800 8,550 1,430 53.4 <5.00 <5.00 6.02 <5.00 33.1 23.6 160 <5.00 <5.00 7.49 <5.00 <5.00 <1,000 <5.00 ------------ 3/20/2014 -- -- -- 6,168 6,070 41.3 32.7 23.8 906 7,420 1,780 70.6 <5.00 <5.00 13.90 <5.00 69.6 49.1 224 <5.00 <5.00 10.10 <5.00 <5.00 <1,000 <5.00 ------------ 9/18/2014 -- -- -- 7,005 6,940 33.9 19.5 11.3 835 9,290 1,690 61.7 <5.00 <5.00 <5.00 <5.00 29.8 21.5 105 <5.00 <5.00 <5.00 <5.00 <5.00 <1,000 <5.00 ------------ 3/18/2015 -- -- -- 6,364 6,300 27.4 24.7 11.6 785 9,090 <5.00 82.0 <5.00 <5.00 6.75 <5.00 43.3 31.6 139 <5.00 <5.00 <5.00 <5.00 <5.00 <1,000 <5.00 ------------ 3/22/2016 -- -- -- 6,339 6,300 19.8 19.4 <10.0 607 8,560 1,410 101 <5.00 <5.00 8.23 <5.00 34.8 27.6 87.7 <5.00 <5.00 <5.00 7.3 <5.00 <1,000 *<5.00 ------------ 3/2/2017 -- -- -- 3,455 3,420 19.1 15.4 <20.0 421 6,960 1,110 69.3 <10.0 <10.0 <10.0 <10.0 23.7 20.4 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <2,000 <10.0 ------------ 7/12/2018 -- -- -- 2,200 2,200 <100 <100 <100 340 5,800 730 160 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <40,000 <100 ------------ 3/26/2019 -- -- -- 3,300 3,300 <100 <100 <100 350 5,200 570 210 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <100 <40,000 <100 -- -- -- -- -- -- MW-8 DW-1 MW-7 MW-9 DW-2 MW-10 Kleinfelder 3200 Gateway Boulevard Suite 100, Morrisville, NC Table 7 Historical Groundwater Analytical Results Former ExxonMobil Facility #42094 3721 Freedom Drive Charlotte, North Carolina December 1, 1990 through March 26, 2019 504.1/6200B 3030C 300 Well ID Date NE NE NE NE 5,000 260,000 84,500 85,500 20,000 70,000 400 70,000 100,000 600 6,900 8,500 30,000 25,000 6,000 3,000 700 70,000 25,000 28,500 NE 50 15,000 NE NE NE NE NE 1,2-DichloroethaneContaminate of Concern--> C5-C8 Aliphatics (Unadjusted) Toluene IPEMADEP VPH/EPH (µg/L)Volatile Organic Compounds by SM6200 B (historical data used 602/6230D) (µg/L)1 Ethylbenzene Total xylenes Total BTEXIsopropylbenzeneCalcium (mg/L)1,3,5-TrimethylbenzeneGCLs--->Sulfate (mg/L) MTBE1,2,4-Trimethylbenzene1,2-Dichloropropane Lead (µg/L)n-Butylbenzene cis-1,2-DichloroetheneZinc (mg/L)Ethanoltrans-1,2-DichloroetheneTetrachloroetheneArsenic (mg/L)Naphthalene Trichloroethene C9-C12 Aliphatics (Unadjusted) C9-C10 Aromatics Benzenesec-ButylbenzeneStyrenen-Propylbenzene6010C - Metals Iron (mg/L) EDBMethods---> 9/6/2012 -- -- -- 694.83 603 54.6 8.53 28.7 228 185 <0.500 <0.500 <0.500 <0.500 1.64 <0.500 2.99 9.15 37.8 <0.500 <0.500 10.3 2.09 4.56 <100 <0.500 -- 1.66 <0.0100 0.126 <0.0500 34.8 11/19/2012 -- -- -- 733.69 635 73.7 3.59 21.4 157 154 <0.500 <0.500 <0.500 <0.500 3.15 1.48 2.43 9.45 115 <0.500 <0.500 11.9 1.30 3.36 <100 <0.500 -- -- -- -- -- -- 2/20/2013 -- -- -- 486.10 278 122 12.5 73.6 145 116 <0.500 <0.500 <0.500 <0.500 1.64 1.10 2.17 6.44 54.1 <0.500 <0.500 5.24 3.79 13.40 <100 <0.500 -- -- -- -- -- -- 9/11/2013 -- -- -- 408.06 307 62.9 5.56 32.6 77.5 92.0 <0.500 <0.500 <0.500 <0.500 1.57 0.872 1.11 5.55 27.0 <0.500 <0.500 3.44 1.70 5.51 <100 <0.500 -- -- -- -- -- -- Notes: GCLs = Gross Contamination Levels NE = Not Established <# = Non-Detect below laboratory reporting limits ND = Below Detection Limits BTEX = Benzene Toluene Ethylbenzene Xylenes MTBE = Methyl tert-butyl ether IPE = Diisopropyl Ether EDB = Ethylene Dibromide BOLD = Concentration exceeds GCL standard -- = Not Analyzed for specific compound 1 = Prior to May 2011 event, samples were analyzed via Environmental Protection Agency (EPA) 602 (historical data used 602/6230D), May 2011 samples were analyzed via SM6200 B. 2 = Prior to May 2011 event, samples were analyzed via EPA 504.1, May 2011 samples were analyzed via SM6200 B. RL1 = Reporting limit raised due to sample matrix effects MADEP = Massachusetts Department of Environmental Protection VPH/EPH = Volatile Petroleum Hydrocarbons / Extractable Petroleum Hydrocarbons µg/L = micrograms per liter * = LCS or LCSD is outside of acceptance limits ** = Data collected by Arcadis DW-3 Kleinfelder 3200 Gateway Boulevard Suite 100, Morrisville, NC 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder www.kleinfelder.com FIGURES The information included on this graphic representation has been compiled from a variety of sources and is subject to change without notice. Kleinfelder makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. This document is not intended for use as a land survey product nor is it designed or intended as a construction design document. The use or misuse of the information contained on this graphic representation is at the sole risk of the party using or misusing the information.CAD FILE: W:\2022\20224361.003A - Exxon 42094 Charlotte NC\42094 Exxon.dwgPLOTTED: 4/6/2022 1:49 PM BY: jeff salaN FIGURE DRAWN BY: PROJECT NO. CHECKED BY: REVISED: DATE: SITE LOCATION MAP FORMER EXXONMOBIL FACILITY #42094 3721 FREEDOM DRIVE CHARLOTTE, NORTH CAROLINA 20224361 JDS MR 04/06/2022 1 REFERENCE: BASE MAP USGS 7.5. MIN. TOPO. QUAD., CHARLOTTE WEST, NC, 2016 AND MOUNTAIN ISLAND LAKE, NC, 2016. SITE 0 SCALE IN FEET 2000 4000 SCALE: 1" = 2000' NORTH CAROLINA AREA LOCATION LEGEND: MONITORING WELL ABANDONED MONITORING WELL SOIL BORING INJECTION WELL SEWER MANHOLE WATER METER WATER VALVE GAS VALVE UTILITY POLE CHAIN LINK FENCE WOOD FENCE GUARDRAIL OHE OVERHEAD ELECTRIC XX MW-8 BUILDING MW-(UNKNOWN) FORMER DISPENSER ISLANDS 6 INJ-1 MW-1 FORMER HEATING OIL TANK FORMER EXXON 42094 FORMER WASTE OIL TANK 3 INJ-2 MW-2 4 5 MW-3 UNKNOWN FORMER CHARLIE BROWN'S DRY CLEANERS 440 MAJOR STREET OHE OHE OHE MAJOR STREET FREEDOM DR IVE 1 5 " CMPOHEOHEOHESTEEP EMBANKMENT4' CHA IN L INK FENCE PROP E R T Y B O U N D A R Y DRIVE W A Y FORMER TANK FIELDXX BRADFORDDRIVECANOPY XXXXXXX XX OHEOHEXXXXXXOHEXOHEOHEOH E OH E OH E OHEOHEOH E OHE OHEOHEOHE OHE OHE OHE OHE OHEOHEOHEOHEOHEOHEOHE MW-7 DW-1 MW-5 DW-2 MW-6 MW-9 DW-3 MW-10 1 LANDSCAPING LANDSCAPING LANDSCAPING LANDSCAPING LANDSCAPINGLANDSCAPING CAD FILE: W:\2022\20224361.003A - Exxon 42094 Charlotte NC\42094 Exxon.dwg LAYOUT: F2PLOTTED: 4/4/2022 5:43 PM BY: jeff salaDRAWN BY DATE: PROJECT NO. CHECKED BY REVISED: FIGURESITE MAP FORMER EXXONMOBIL FACILITY #42094 3721 FREEDOM DRIVE CHARLOTTE, NORTH CAROLINA 20224361 JDS MR 04/04/2022 2 REFERENCE: BASE MAP PREPARED FROM A DRAWING "SITE MAP" PROVIDED BY ARCADIS, DATED 4/16/2019. N 0 SCALE IN FEET 40 80 SCALE: 1" = 40' NOTE: THIS FIGURE IS BASED UPON A SURVEY BY ARCADIS US, INC. ON 10/2/2012. FORMER LOCATIONS AND SOIL BORINGS WERE NOT SURVEYED AND ARE THEREFORE APPROXIMATE. MW-8BUILDINGMW-(UNKNOWN)FORMERDISPENSERISLANDS6INJ-1MW-1FORMER HEATINGOIL TANKFORMER EXXON42094FORMERWASTE OILTANK3INJ-2MW-245MW-3UNKNOWNFORMER CHARLIEBROWN'S DRYCLEANERS 440 MAJORSTREETOHEOHEOHEMAJOR STREETFREEDOM DRIVE15" CMPOH E OH E OH E STEEP EMBANKMENT4' CHAIN LINK FENCEPROPERTY BOUNDARYDRIVEWAYFORMERTANK FIELDX X BRADFORD DRIVE CANOPYX XXXXXXXXOHEOHEXXXXXXOHEXOHEOHEOHEOHEOHEOHEOHEOHEOHEOHEOHE O H EOH E OH EOHEOHEOHE OHE OHE OHE OHE OHEOHE MW-7DW-1MW-5DW-2MW-6MW-9DW-3MW-101LANDSCAPINGLANDSCAPINGLANDSCAPINGLANDSCAPINGLANDSCAPINGLANDSCAPING769.0768.5768.0767.5767.0766.5766.0765.5765.0764.5 764.0 763.5 LEGEND:MONITORING WELLABANDONED MONITORING WELLSOIL BORINGINJECTION WELLSEWER MANHOLEWATER METERWATER VALVEGAS VALVEUTILITY POLECHAIN LINK FENCEWOOD FENCEGUARDRAILOHEOVERHEAD ELECTRICXXCAD FILE: G:\CADD\KLF PROJECTS\NORTH CAROLINA\CAD\42094\2023\42094 Exxon 3-23.dwg LAYOUT: F3 PLOTTED: 5/8/2023 2:33 PM BY: chris hait DRAWN BYDATE:PROJECT NO.CHECKED BYREVISED:FIGUREHYDROCARBON DISTRIBUTION/GROUNDWATER CONTOUR PLANFORMER EXXONMOBIL FACILITY #42094 3721 FREEDOM DRIVECHARLOTTE, NORTH CAROLINA 20224362CTHMR05/08/20233NOTES:1.SITE MAP BY GROUNDWATER & ENVIRONMENTAL SERVICES, INC(GES), RALEIGH, NORTH CAROLINA, DATED 12-02-2010.2.SITE MAP BY MARSHALL MILLER AND ASSOCIATES, BLUEFIELD,WEST VIRGINIA, DATED 07-09-2001.3.SITE MAP BY ENVIRONMENTAL RESOURCES MANAGEMENT(ERM), DATED 04-06-2000.4.LOCATION OF MW-19, MW-100 & MW-101 ARE APPROXIMATE.5.MONITORING WELLS MW-1D , MW-19R, MW-22, MW-24, MW-100,MW-101 AND MMPE WELLS WERE NOT USED IN CONTOURINGTHE SITE.REFERENCE:BASE MAP PREPARED FROM A DRAWING "SITE MAP"PROVIDED BY ARCADIS, DATED 1/30/2020.NWELL IDENTIFICATIONGROUNDWATER ELEVATION (FEET)BENZENE (ug/L)TOLUENE (ug/L)ETHYLBENZENE (ug/L)TOTAL XYLENES (ug/L)MTBE (ug/L)DI ISOPROPYL ETHER (DIPE) (ug/L)NAPHTHALENE (ug/L)1,2 DIBROMOETHANE (EDB) (ug/L)1,2-DICHLOROETHANE (ug/L)1,2,4-TRIMETHYLBENZENE (ug/L)1,3,5-TRIMETHYLBENZENE (ug/L)MW-6769.53NSNSNSNSNSNSNSNSNSNSNSDW-2765.572500<50<501101303200<50<50260<50<50DW-3766.28NSNSNSNSNSNSNSNSNSNSNSDW-1NSVDNSNSNSNSNSNSNSNSNSNSNSMW-7763.43NSNSNSNSNSNSNSNSNSNSNSDATA COLLECTED ON 3/23/230SCALE IN FEET4080SCALE: 1" = 40'MW-8765.62NSNSNSNSNSNSNSNSNSNSNS463.5 NSNOT SAMPLEDESTIMATED GROUNDWATER ELEVATION CONTOUR (FEETABOVE MEAN SEA LEVEL) (DASHED WHERE INFERRED)APPROXIMATE GROUNDWATER FLOW DIRECTIONMICROGRAMS PER LITERREPORTED CONCENTRATION DETECTED ABOVE THEAPPLICABLE 2L STANDARD(S) OR GUIDANCE VALUE(S)(ug/L)REPORTED CONCENTRATION DETECTED ABOVE THEAPPLICABLE GCL STANDARD(S) OR GUIDANCE VALUE(S)NSVDNOT SURVEYED TO VERTICAL DATUM<1.0NOT DETECTED AT OR ABOVE THE LABORATORYREPORTING LIMIT SHOWNBOLDBOLDINJ-1767.10NSNSNSNSNSNSNSNSNSNSNSINJ-2766.30NSNSNSNSNSNSNSNSNSNSNSMW-5766.0019000 E14000 E12007800<1001300 F1400<100130300980MW-5766.0019000 E14000 E12007800<1001300 F1400<100130300980MW-9766.897700150002300160004109901000<100<1008302900MW-10766.79NSNSNSNSNSNSNSNSNSNSNSERESULT EXCEEDED CALIBRATION RANGEF1 MS AND/OR MSD RECOVERY EXCEEDS CONTROL LIMITS 2023796.004A/ RAL23R152427 May 8, 2023 © 2023 Kleinfelder www.kleinfelder.com APPENDIX A LABORATORY ANALYTICAL REPORT AND CHAIN-OF-CUSTODY DOCUMENT ANALYTICAL REPORT PREPARED FOR Attn: Marie Randall Kleinfelder Inc One Beacon Street, Suite 8100 Boston, Massachusetts 02103 Generated 4/10/2023 11:48:19 AM JOB DESCRIPTION 4-2094 - Charlotte, NC JOB NUMBER 410-120242-1 See page two for job notes and contact information. Lancaster PA 17601 2425 New Holland Pike Eurofins Lancaster Laboratories Environment Testing, LLC Page 1 of 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eurofins Lancaster Laboratories Environment Testing, LLC Eurofins Lancaster Laboratories is a laboratory within Eurofins Lancaster Laboratories Environment Testing, LLC, a company within Eurofins Environment Testing Group of Companies Job Notes Analytical test results meet all requirements of the associated regulatory program (i.e., NELAC (TNI), DoD, and ISO 17025) unless otherwise noted under the individual analysis. Authorization Generated 4/10/2023 11:48:19 AM Authorized for release by Megan Moeller, Client Services Manager Megan.Moeller@et.eurofinsus.com (717)556-7261 Page 2 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Eurofins Lancaster Laboratories Environment Testing, LLC Compliance Statement Analytical test results meet all requirements of the associated regulatory program (e.g., NELAC (TNI), DoD, and ISO 17025) unless otherwise noted under the individual analysis. Data qualifiers are applied to note exceptions. Noncompliant quality control (QC) is further explained in narrative comments. · QC results that exceed the upper limits and are associated with non-detect samples are qualified but further narration is not required since the bias is high and does not change a non-detect result. Further narration is also not required with QC blank detection when the associated sample concentration is non-detect or more than ten times the level in the blank. · Matrix QC may not be reported if insufficient sample or site-specific QC samples were not submitted. In these situations, to demonstrate precision and accuracy at a batch level, a LCS/LCSD is performed, unless otherwise specified in the method. · Surrogate and/or isotope dilution analyte recoveries (if applicable) which are outside of the QC window are confirmed unless attributed to a dilution or otherwise noted in the narrative. Regulated compliance samples (e.g. SDWA, NPDES) must comply with the associated agency requirements/permits. Measurement uncertainty values, as applicable, are available upon request. Test results relate only to the sample tested. Clients should be aware that a critical step in a chemical or microbiological analysis is the collection of the sample. Unless the sample analyzed is truly representative of the bulk of material involved, the test results will be meaningless. If you have questions regarding the proper techniques of collecting samples, please contact us. We cannot be held responsible for sample integrity, however, unless sampling has been performed by a member of our staff. Times are local to the area of activity. Parameters listed in the 40 CFR Part 136 Table II as "analyze immediately" and tested in the laboratory are not performed within 15 minutes of collection. This report shall not be reproduced except in full, without the written approval of the laboratory. WARRANTY AND LIMITS OF LIABILITY - In accepting analytical work, we warrant the accuracy of test results for the sample as submitted. The foregoing express warranty is exclusive and is given in lieu of all other warranties, expressed or implied, except as otherwise agreed. We disclaim any other warranties, expressed or implied, including a warranty of fitness for particular purpose and warranty of merchantability. In no event shall Eurofins Lancaster Laboratories Environmental, LLC be liable for indirect, special, consequential, or incidental damages including, but not limited to, damages for loss of profit or goodwill regardless of (A) the negligence (either sole or concurrent) of Eurofins Lancaster Laboratories Environmental and (B) whether Eurofins Lancaster Laboratories Environmental has been informed of the possibility of such damages. We accept no legal responsibility for the purposes for which the client uses the test results. Except as otherwise agreed, no purchase order or other order for work shall be accepted by Eurofins Lancaster Laboratories Environmental which includes any conditions that vary from the Standard Terms and Conditions, and Eurofins Lancaster Laboratories Environmental hereby objects to any conflicting terms contained in any acceptance or order submitted by client. Page 3 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Table of Contents Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Laboratory Job ID: 410-120242-1 Page 4 of 30 Eurofins Lancaster Laboratories Environment Testing, LLC4/10/2023 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Definitions/Glossary Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Qualifiers GC/MS VOA Qualifier Description 4 MS, MSD: The analyte present in the original sample is greater than 4 times the matrix spike concentration; therefore, control limits are not applicable. Qualifier E Result exceeded calibration range. F1 MS and/or MSD recovery exceeds control limits. Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins Lancaster Laboratories Environment Testing, LLC Page 5 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Case Narrative Client: Kleinfelder Inc Job ID: 410-120242-1 Project/Site: 4-2094 - Charlotte, NC Job ID: 410-120242-1 Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC Narrative Job Narrative 410-120242-1 Receipt The samples were received on 3/25/2023 9:50 AM. Unless otherwise noted below, the samples arrived in good condition, and, where required, properly preserved and on ice. The temperature of the cooler at receipt time was 1.5°C Receipt Exceptions The container count for the following sample did not match what was listed on the Chain-of-Custody (COC): Trip Blank (410-120242-4). The laboratory received 2 total containers, while the COC lists 1 total containers. GC/MS VOA No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Eurofins Lancaster Laboratories Environment Testing, LLCPage 6 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Client Sample ID: MW-5 Lab Sample ID: 410-120242-1 1,2,4-Trimethylbenzene RL 100 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA2009806200 B-2011 1,2-Dichloroethane 100 ug/L Total/NA2001306200 B-2011 1,3,5-Trimethylbenzene 100 ug/L Total/NA2003006200 B-2011 Benzene 100 ug/L Total/NA20019000E6200 B-2011 cis-1,2-Dichloroethene 100 ug/L Total/NA2003706200 B-2011 di-Isopropyl ether 100 ug/L Total/NA2001300F16200 B-2011 Ethylbenzene 100 ug/L Total/NA20012006200 B-2011 Naphthalene 100 ug/L Total/NA2004006200 B-2011 Styrene 100 ug/L Total/NA2002606200 B-2011 Toluene 100 ug/L Total/NA20014000E6200 B-2011 Xylenes, Total 100 ug/L Total/NA20078006200 B-2011 Benzene - DL 1000 ug/L Total/NA2000190006200 B-2011 Toluene - DL 1000 ug/L Total/NA2000150006200 B-2011 Client Sample ID: MW-9 Lab Sample ID: 410-120242-2 1,2,4-Trimethylbenzene RL 100 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA20029006200 B-2011 1,3,5-Trimethylbenzene 100 ug/L Total/NA2008306200 B-2011 di-Isopropyl ether 100 ug/L Total/NA2009906200 B-2011 Ethylbenzene 100 ug/L Total/NA20023006200 B-2011 Methyl tertiary butyl ether 100 ug/L Total/NA2004106200 B-2011 N-Propylbenzene 100 ug/L Total/NA2002306200 B-2011 Naphthalene 100 ug/L Total/NA20010006200 B-2011 Styrene 100 ug/L Total/NA2004206200 B-2011 Benzene - DL 1000 ug/L Total/NA200077006200 B-2011 Toluene - DL 1000 ug/L Total/NA2000150006200 B-2011 Xylenes, Total - DL 1000 ug/L Total/NA2000160006200 B-2011 Client Sample ID: DW-2 Lab Sample ID: 410-120242-3 1,2-Dichloroethane RL 50 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA1002606200 B-2011 cis-1,2-Dichloroethene 50 ug/L Total/NA1003706200 B-2011 Methyl tertiary butyl ether 50 ug/L Total/NA1001306200 B-2011 Xylenes, Total 50 ug/L Total/NA1001106200 B-2011 Benzene - DL 500 ug/L Total/NA100025006200 B-2011 di-Isopropyl ether - DL 500 ug/L Total/NA100032006200 B-2011 Client Sample ID: Trip Blank Lab Sample ID: 410-120242-4 No Detections. Eurofins Lancaster Laboratories Environment Testing, LLC This Detection Summary does not include radiochemical test results. Page 7 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Lab Sample ID: 410-120242-1Client Sample ID: MW-5 Matrix: GroundwaterDate Collected: 03/24/23 09:15 Date Received: 03/25/23 09:50 Method: SM 6200 B-2011 - Volatile Organic Compounds RL MDL <100 100 ug/L 04/06/23 12:19 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,1,1,2-Tetrachloroethane 100 ug/L 04/06/23 12:19 200<1001,1,1-Trichloroethane 100 ug/L 04/06/23 12:19 200<1001,1,2,2-Tetrachloroethane 100 ug/L 04/06/23 12:19 200<1001,1,2-Trichloroethane 100 ug/L 04/06/23 12:19 200<1001,1-Dichloroethane 100 ug/L 04/06/23 12:19 200<1001,1-Dichloroethene 100 ug/L 04/06/23 12:19 200<1001,1-Dichloropropene 100 ug/L 04/06/23 12:19 200<1001,2,3-Trichlorobenzene 400 ug/L 04/06/23 12:19 200<4001,2,3-Trichloropropane 100 ug/L 04/06/23 12:19 200<1001,2,4-Trichlorobenzene 100 ug/L 04/06/23 12:19 2009801,2,4-Trimethylbenzene 400 ug/L 04/06/23 12:19 200<4001,2-Dibromo-3-Chloropropane 100 ug/L 04/06/23 12:19 200<1001,2-Dibromoethane 100 ug/L 04/06/23 12:19 200<1001,2-Dichlorobenzene 100 ug/L 04/06/23 12:19 2001301,2-Dichloroethane 100 ug/L 04/06/23 12:19 200<1001,2-Dichloropropane 100 ug/L 04/06/23 12:19 2003001,3,5-Trimethylbenzene 100 ug/L 04/06/23 12:19 200<1001,3-Dichlorobenzene 100 ug/L 04/06/23 12:19 200<1001,3-Dichloropropane 100 ug/L 04/06/23 12:19 200<1001,4-Dichlorobenzene 100 ug/L 04/06/23 12:19 200<1002,2-Dichloropropane 100 ug/L 04/06/23 12:19 200<1002-Chlorotoluene 100 ug/L 04/06/23 12:19 200<1004-Chlorotoluene 100 ug/L 04/06/23 12:19 20019000EBenzene 100 ug/L 04/06/23 12:19 200<100Bromobenzene 100 ug/L 04/06/23 12:19 200<100Bromochloromethane 100 ug/L 04/06/23 12:19 200<100Bromodichloromethane 200 ug/L 04/06/23 12:19 200<200Bromoform 100 ug/L 04/06/23 12:19 200<100Bromomethane 100 ug/L 04/06/23 12:19 200<100Carbon tetrachloride 100 ug/L 04/06/23 12:19 200<100Chlorobenzene 100 ug/L 04/06/23 12:19 200<100Chloroethane 100 ug/L 04/06/23 12:19 200<100Chloroform 100 ug/L 04/06/23 12:19 200370cis-1,2-Dichloroethene 100 ug/L 04/06/23 12:19 200<100cis-1,3-Dichloropropene 160 ug/L 04/06/23 12:19 200<160Chloromethane 100 ug/L 04/06/23 12:19 200<100Dibromochloromethane 100 ug/L 04/06/23 12:19 200<100Dibromomethane 100 ug/L 04/06/23 12:19 200<100Dichlorodifluoromethane 100 ug/L 04/06/23 12:19 2001300F1di-Isopropyl ether 40000 ug/L 04/06/23 12:19 200<40000Ethanol 100 ug/L 04/06/23 12:19 2001200Ethylbenzene 100 ug/L 04/06/23 12:19 200<100Hexachlorobutadiene 100 ug/L 04/06/23 12:19 200<100Isopropylbenzene 100 ug/L 04/06/23 12:19 200<100Methyl tertiary butyl ether 160 ug/L 04/06/23 12:19 200<160Methylene Chloride 100 ug/L 04/06/23 12:19 200<100n-Butylbenzene 100 ug/L 04/06/23 12:19 200<100N-Propylbenzene 100 ug/L 04/06/23 12:19 200400Naphthalene Eurofins Lancaster Laboratories Environment Testing, LLC Page 8 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Lab Sample ID: 410-120242-1Client Sample ID: MW-5 Matrix: GroundwaterDate Collected: 03/24/23 09:15 Date Received: 03/25/23 09:50 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL <100 100 ug/L 04/06/23 12:19 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier p-Isopropyltoluene 100 ug/L 04/06/23 12:19 200<100sec-Butylbenzene 100 ug/L 04/06/23 12:19 200260Styrene 100 ug/L 04/06/23 12:19 200<100tert-Butylbenzene 100 ug/L 04/06/23 12:19 200<100Tetrachloroethene 100 ug/L 04/06/23 12:19 20014000EToluene 100 ug/L 04/06/23 12:19 200<100trans-1,2-Dichloroethene 100 ug/L 04/06/23 12:19 200<100trans-1,3-Dichloropropene 100 ug/L 04/06/23 12:19 200<100Trichloroethene 100 ug/L 04/06/23 12:19 200<100 F1Trichlorofluoromethane 100 ug/L 04/06/23 12:19 200<100Vinyl chloride 100 ug/L 04/06/23 12:19 2007800Xylenes, Total 1,2-Dichloroethane-d4 (Surr)105 70-130 04/06/23 12:19 200 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)98 04/06/23 12:19 20070-130 Dibromofluoromethane (Surr)102 04/06/23 12:19 20070-130 Toluene-d8 (Surr)95 04/06/23 12:19 20070-130 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL MDL 19000 1000 ug/L 04/06/23 12:43 2000 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 1000 ug/L 04/06/23 12:43 200015000Toluene 1,2-Dichloroethane-d4 (Surr)104 70-130 04/06/23 12:43 2000 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)96 04/06/23 12:43 200070-130 Dibromofluoromethane (Surr)108 04/06/23 12:43 200070-130 Toluene-d8 (Surr)93 04/06/23 12:43 200070-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 9 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Lab Sample ID: 410-120242-2Client Sample ID: MW-9 Matrix: GroundwaterDate Collected: 03/23/23 16:51 Date Received: 03/25/23 09:50 Method: SM 6200 B-2011 - Volatile Organic Compounds RL MDL <100 100 ug/L 04/06/23 13:07 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,1,1,2-Tetrachloroethane 100 ug/L 04/06/23 13:07 200<1001,1,1-Trichloroethane 100 ug/L 04/06/23 13:07 200<1001,1,2,2-Tetrachloroethane 100 ug/L 04/06/23 13:07 200<1001,1,2-Trichloroethane 100 ug/L 04/06/23 13:07 200<1001,1-Dichloroethane 100 ug/L 04/06/23 13:07 200<1001,1-Dichloroethene 100 ug/L 04/06/23 13:07 200<1001,1-Dichloropropene 100 ug/L 04/06/23 13:07 200<1001,2,3-Trichlorobenzene 400 ug/L 04/06/23 13:07 200<4001,2,3-Trichloropropane 100 ug/L 04/06/23 13:07 200<1001,2,4-Trichlorobenzene 100 ug/L 04/06/23 13:07 20029001,2,4-Trimethylbenzene 400 ug/L 04/06/23 13:07 200<4001,2-Dibromo-3-Chloropropane 100 ug/L 04/06/23 13:07 200<1001,2-Dibromoethane 100 ug/L 04/06/23 13:07 200<1001,2-Dichlorobenzene 100 ug/L 04/06/23 13:07 200<1001,2-Dichloroethane 100 ug/L 04/06/23 13:07 200<1001,2-Dichloropropane 100 ug/L 04/06/23 13:07 2008301,3,5-Trimethylbenzene 100 ug/L 04/06/23 13:07 200<1001,3-Dichlorobenzene 100 ug/L 04/06/23 13:07 200<1001,3-Dichloropropane 100 ug/L 04/06/23 13:07 200<1001,4-Dichlorobenzene 100 ug/L 04/06/23 13:07 200<1002,2-Dichloropropane 100 ug/L 04/06/23 13:07 200<1002-Chlorotoluene 100 ug/L 04/06/23 13:07 200<1004-Chlorotoluene 100 ug/L 04/06/23 13:07 200<100Bromobenzene 100 ug/L 04/06/23 13:07 200<100Bromochloromethane 100 ug/L 04/06/23 13:07 200<100Bromodichloromethane 200 ug/L 04/06/23 13:07 200<200Bromoform 100 ug/L 04/06/23 13:07 200<100Bromomethane 100 ug/L 04/06/23 13:07 200<100Carbon tetrachloride 100 ug/L 04/06/23 13:07 200<100Chlorobenzene 100 ug/L 04/06/23 13:07 200<100Chloroethane 100 ug/L 04/06/23 13:07 200<100Chloroform 100 ug/L 04/06/23 13:07 200<100cis-1,2-Dichloroethene 100 ug/L 04/06/23 13:07 200<100cis-1,3-Dichloropropene 160 ug/L 04/06/23 13:07 200<160Chloromethane 100 ug/L 04/06/23 13:07 200<100Dibromochloromethane 100 ug/L 04/06/23 13:07 200<100Dibromomethane 100 ug/L 04/06/23 13:07 200<100Dichlorodifluoromethane 100 ug/L 04/06/23 13:07 200990di-Isopropyl ether 40000 ug/L 04/06/23 13:07 200<40000Ethanol 100 ug/L 04/06/23 13:07 2002300Ethylbenzene 100 ug/L 04/06/23 13:07 200<100Hexachlorobutadiene 100 ug/L 04/06/23 13:07 200<100Isopropylbenzene 100 ug/L 04/06/23 13:07 200410Methyl tertiary butyl ether 160 ug/L 04/06/23 13:07 200<160Methylene Chloride 100 ug/L 04/06/23 13:07 200<100n-Butylbenzene 100 ug/L 04/06/23 13:07 200230N-Propylbenzene 100 ug/L 04/06/23 13:07 2001000Naphthalene 100 ug/L 04/06/23 13:07 200<100p-Isopropyltoluene Eurofins Lancaster Laboratories Environment Testing, LLC Page 10 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Lab Sample ID: 410-120242-2Client Sample ID: MW-9 Matrix: GroundwaterDate Collected: 03/23/23 16:51 Date Received: 03/25/23 09:50 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL <100 100 ug/L 04/06/23 13:07 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier sec-Butylbenzene 100 ug/L 04/06/23 13:07 200420Styrene 100 ug/L 04/06/23 13:07 200<100tert-Butylbenzene 100 ug/L 04/06/23 13:07 200<100Tetrachloroethene 100 ug/L 04/06/23 13:07 200<100trans-1,2-Dichloroethene 100 ug/L 04/06/23 13:07 200<100trans-1,3-Dichloropropene 100 ug/L 04/06/23 13:07 200<100Trichloroethene 100 ug/L 04/06/23 13:07 200<100Trichlorofluoromethane 100 ug/L 04/06/23 13:07 200<100Vinyl chloride 1,2-Dichloroethane-d4 (Surr)100 70-130 04/06/23 13:07 200 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)98 04/06/23 13:07 20070-130 Dibromofluoromethane (Surr)103 04/06/23 13:07 20070-130 Toluene-d8 (Surr)94 04/06/23 13:07 20070-130 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL MDL 7700 1000 ug/L 04/06/23 13:31 2000 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 1000 ug/L 04/06/23 13:31 200015000Toluene 1000 ug/L 04/06/23 13:31 200016000Xylenes, Total 1,2-Dichloroethane-d4 (Surr)100 70-130 04/06/23 13:31 2000 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)93 04/06/23 13:31 200070-130 Dibromofluoromethane (Surr)103 04/06/23 13:31 200070-130 Toluene-d8 (Surr)93 04/06/23 13:31 200070-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 11 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Lab Sample ID: 410-120242-3Client Sample ID: DW-2 Matrix: GroundwaterDate Collected: 03/23/23 15:00 Date Received: 03/25/23 09:50 Method: SM 6200 B-2011 - Volatile Organic Compounds RL MDL <50 50 ug/L 04/06/23 13:55 100 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,1,1,2-Tetrachloroethane 50 ug/L 04/06/23 13:55 100<501,1,1-Trichloroethane 50 ug/L 04/06/23 13:55 100<501,1,2,2-Tetrachloroethane 50 ug/L 04/06/23 13:55 100<501,1,2-Trichloroethane 50 ug/L 04/06/23 13:55 100<501,1-Dichloroethane 50 ug/L 04/06/23 13:55 100<501,1-Dichloroethene 50 ug/L 04/06/23 13:55 100<501,1-Dichloropropene 50 ug/L 04/06/23 13:55 100<501,2,3-Trichlorobenzene 200 ug/L 04/06/23 13:55 100<2001,2,3-Trichloropropane 50 ug/L 04/06/23 13:55 100<501,2,4-Trichlorobenzene 50 ug/L 04/06/23 13:55 100<501,2,4-Trimethylbenzene 200 ug/L 04/06/23 13:55 100<2001,2-Dibromo-3-Chloropropane 50 ug/L 04/06/23 13:55 100<501,2-Dibromoethane 50 ug/L 04/06/23 13:55 100<501,2-Dichlorobenzene 50 ug/L 04/06/23 13:55 1002601,2-Dichloroethane 50 ug/L 04/06/23 13:55 100<501,2-Dichloropropane 50 ug/L 04/06/23 13:55 100<501,3,5-Trimethylbenzene 50 ug/L 04/06/23 13:55 100<501,3-Dichlorobenzene 50 ug/L 04/06/23 13:55 100<501,3-Dichloropropane 50 ug/L 04/06/23 13:55 100<501,4-Dichlorobenzene 50 ug/L 04/06/23 13:55 100<502,2-Dichloropropane 50 ug/L 04/06/23 13:55 100<502-Chlorotoluene 50 ug/L 04/06/23 13:55 100<504-Chlorotoluene 50 ug/L 04/06/23 13:55 100<50Bromobenzene 50 ug/L 04/06/23 13:55 100<50Bromochloromethane 50 ug/L 04/06/23 13:55 100<50Bromodichloromethane 100 ug/L 04/06/23 13:55 100<100Bromoform 50 ug/L 04/06/23 13:55 100<50Bromomethane 50 ug/L 04/06/23 13:55 100<50Carbon tetrachloride 50 ug/L 04/06/23 13:55 100<50Chlorobenzene 50 ug/L 04/06/23 13:55 100<50Chloroethane 50 ug/L 04/06/23 13:55 100<50Chloroform 50 ug/L 04/06/23 13:55 100370cis-1,2-Dichloroethene 50 ug/L 04/06/23 13:55 100<50cis-1,3-Dichloropropene 80 ug/L 04/06/23 13:55 100<80Chloromethane 50 ug/L 04/06/23 13:55 100<50Dibromochloromethane 50 ug/L 04/06/23 13:55 100<50Dibromomethane 50 ug/L 04/06/23 13:55 100<50Dichlorodifluoromethane 20000 ug/L 04/06/23 13:55 100<20000Ethanol 50 ug/L 04/06/23 13:55 100<50Ethylbenzene 50 ug/L 04/06/23 13:55 100<50Hexachlorobutadiene 50 ug/L 04/06/23 13:55 100<50Isopropylbenzene 50 ug/L 04/06/23 13:55 100130Methyl tertiary butyl ether 80 ug/L 04/06/23 13:55 100<80Methylene Chloride 50 ug/L 04/06/23 13:55 100<50n-Butylbenzene 50 ug/L 04/06/23 13:55 100<50N-Propylbenzene 50 ug/L 04/06/23 13:55 100<50Naphthalene 50 ug/L 04/06/23 13:55 100<50p-Isopropyltoluene 50 ug/L 04/06/23 13:55 100<50sec-Butylbenzene Eurofins Lancaster Laboratories Environment Testing, LLC Page 12 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Lab Sample ID: 410-120242-3Client Sample ID: DW-2 Matrix: GroundwaterDate Collected: 03/23/23 15:00 Date Received: 03/25/23 09:50 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL <50 50 ug/L 04/06/23 13:55 100 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Styrene 50 ug/L 04/06/23 13:55 100<50tert-Butylbenzene 50 ug/L 04/06/23 13:55 100<50Tetrachloroethene 50 ug/L 04/06/23 13:55 100<50Toluene 50 ug/L 04/06/23 13:55 100<50trans-1,2-Dichloroethene 50 ug/L 04/06/23 13:55 100<50trans-1,3-Dichloropropene 50 ug/L 04/06/23 13:55 100<50Trichloroethene 50 ug/L 04/06/23 13:55 100<50Trichlorofluoromethane 50 ug/L 04/06/23 13:55 100<50Vinyl chloride 50 ug/L 04/06/23 13:55 100110Xylenes, Total 1,2-Dichloroethane-d4 (Surr)105 70-130 04/06/23 13:55 100 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)96 04/06/23 13:55 10070-130 Dibromofluoromethane (Surr)103 04/06/23 13:55 10070-130 Toluene-d8 (Surr)95 04/06/23 13:55 10070-130 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL MDL 2500 500 ug/L 04/06/23 14:19 1000 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 500 ug/L 04/06/23 14:19 10003200di-Isopropyl ether 1,2-Dichloroethane-d4 (Surr)105 70-130 04/06/23 14:19 1000 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)92 04/06/23 14:19 100070-130 Dibromofluoromethane (Surr)107 04/06/23 14:19 100070-130 Toluene-d8 (Surr)95 04/06/23 14:19 100070-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 13 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Lab Sample ID: 410-120242-4Client Sample ID: Trip Blank Matrix: WaterDate Collected: 03/23/23 00:00 Date Received: 03/25/23 09:50 Method: SM 6200 B-2011 - Volatile Organic Compounds RL MDL <0.50 0.50 ug/L 04/06/23 11:55 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,1,1,2-Tetrachloroethane 0.50 ug/L 04/06/23 11:55 1<0.501,1,1-Trichloroethane 0.50 ug/L 04/06/23 11:55 1<0.501,1,2,2-Tetrachloroethane 0.50 ug/L 04/06/23 11:55 1<0.501,1,2-Trichloroethane 0.50 ug/L 04/06/23 11:55 1<0.501,1-Dichloroethane 0.50 ug/L 04/06/23 11:55 1<0.501,1-Dichloroethene 0.50 ug/L 04/06/23 11:55 1<0.501,1-Dichloropropene 0.50 ug/L 04/06/23 11:55 1<0.501,2,3-Trichlorobenzene 2.0 ug/L 04/06/23 11:55 1<2.01,2,3-Trichloropropane 0.50 ug/L 04/06/23 11:55 1<0.501,2,4-Trichlorobenzene 0.50 ug/L 04/06/23 11:55 1<0.501,2,4-Trimethylbenzene 2.0 ug/L 04/06/23 11:55 1<2.01,2-Dibromo-3-Chloropropane 0.50 ug/L 04/06/23 11:55 1<0.501,2-Dibromoethane 0.50 ug/L 04/06/23 11:55 1<0.501,2-Dichlorobenzene 0.50 ug/L 04/06/23 11:55 1<0.501,2-Dichloroethane 0.50 ug/L 04/06/23 11:55 1<0.501,2-Dichloropropane 0.50 ug/L 04/06/23 11:55 1<0.501,3,5-Trimethylbenzene 0.50 ug/L 04/06/23 11:55 1<0.501,3-Dichlorobenzene 0.50 ug/L 04/06/23 11:55 1<0.501,3-Dichloropropane 0.50 ug/L 04/06/23 11:55 1<0.501,4-Dichlorobenzene 0.50 ug/L 04/06/23 11:55 1<0.502,2-Dichloropropane 0.50 ug/L 04/06/23 11:55 1<0.502-Chlorotoluene 0.50 ug/L 04/06/23 11:55 1<0.504-Chlorotoluene 0.50 ug/L 04/06/23 11:55 1<0.50Benzene 0.50 ug/L 04/06/23 11:55 1<0.50Bromobenzene 0.50 ug/L 04/06/23 11:55 1<0.50Bromochloromethane 0.50 ug/L 04/06/23 11:55 1<0.50Bromodichloromethane 1.0 ug/L 04/06/23 11:55 1<1.0Bromoform 0.50 ug/L 04/06/23 11:55 1<0.50Bromomethane 0.50 ug/L 04/06/23 11:55 1<0.50Carbon tetrachloride 0.50 ug/L 04/06/23 11:55 1<0.50Chlorobenzene 0.50 ug/L 04/06/23 11:55 1<0.50Chloroethane 0.50 ug/L 04/06/23 11:55 1<0.50Chloroform 0.50 ug/L 04/06/23 11:55 1<0.50cis-1,2-Dichloroethene 0.50 ug/L 04/06/23 11:55 1<0.50cis-1,3-Dichloropropene 0.80 ug/L 04/06/23 11:55 1<0.80Chloromethane 0.50 ug/L 04/06/23 11:55 1<0.50Dibromochloromethane 0.50 ug/L 04/06/23 11:55 1<0.50Dibromomethane 0.50 ug/L 04/06/23 11:55 1<0.50Dichlorodifluoromethane 0.50 ug/L 04/06/23 11:55 1<0.50di-Isopropyl ether 200 ug/L 04/06/23 11:55 1<200Ethanol 0.50 ug/L 04/06/23 11:55 1<0.50Ethylbenzene 0.50 ug/L 04/06/23 11:55 1<0.50Hexachlorobutadiene 0.50 ug/L 04/06/23 11:55 1<0.50Isopropylbenzene 0.50 ug/L 04/06/23 11:55 1<0.50Methyl tertiary butyl ether 0.80 ug/L 04/06/23 11:55 1<0.80Methylene Chloride 0.50 ug/L 04/06/23 11:55 1<0.50n-Butylbenzene 0.50 ug/L 04/06/23 11:55 1<0.50N-Propylbenzene 0.50 ug/L 04/06/23 11:55 1<0.50Naphthalene Eurofins Lancaster Laboratories Environment Testing, LLC Page 14 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Lab Sample ID: 410-120242-4Client Sample ID: Trip Blank Matrix: WaterDate Collected: 03/23/23 00:00 Date Received: 03/25/23 09:50 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL <0.50 0.50 ug/L 04/06/23 11:55 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier p-Isopropyltoluene 0.50 ug/L 04/06/23 11:55 1<0.50sec-Butylbenzene 0.50 ug/L 04/06/23 11:55 1<0.50Styrene 0.50 ug/L 04/06/23 11:55 1<0.50tert-Butylbenzene 0.50 ug/L 04/06/23 11:55 1<0.50Tetrachloroethene 0.50 ug/L 04/06/23 11:55 1<0.50Toluene 0.50 ug/L 04/06/23 11:55 1<0.50trans-1,2-Dichloroethene 0.50 ug/L 04/06/23 11:55 1<0.50trans-1,3-Dichloropropene 0.50 ug/L 04/06/23 11:55 1<0.50Trichloroethene 0.50 ug/L 04/06/23 11:55 1<0.50Trichlorofluoromethane 0.50 ug/L 04/06/23 11:55 1<0.50Vinyl chloride 0.50 ug/L 04/06/23 11:55 1<0.50Xylenes, Total 1,2-Dichloroethane-d4 (Surr)110 70-130 04/06/23 11:55 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)90 04/06/23 11:55 170-130 Dibromofluoromethane (Surr)110 04/06/23 11:55 170-130 Toluene-d8 (Surr)93 04/06/23 11:55 170-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 15 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Surrogate Summary Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Method: 6200 B-2011 - Volatile Organic Compounds Prep Type: Total/NAMatrix: Groundwater Lab Sample ID Client Sample ID (70-130)(70-130)(70-130)(70-130) DCA BFB DBFM TOL 105 98 102 95410-120242-1 Percent Surrogate Recovery (Acceptance Limits) MW-5 104 96 108 93410-120242-1 - DL MW-5 103 100 100 98410-120242-1 MS MW-5 104 99 99 97410-120242-1 MSD MW-5 100 98 103 94410-120242-2 MW-9 100 93 103 93410-120242-2 - DL MW-9 105 96 103 95410-120242-3 DW-2 105 92 107 95410-120242-3 - DL DW-2 Surrogate Legend DCA = 1,2-Dichloroethane-d4 (Surr) BFB = 4-Bromofluorobenzene (Surr) DBFM = Dibromofluoromethane (Surr) TOL = Toluene-d8 (Surr) Method: 6200 B-2011 - Volatile Organic Compounds Prep Type: Total/NAMatrix: Water Lab Sample ID Client Sample ID (70-130)(70-130)(70-130)(70-130) DCA BFB DBFM TOL 110 90 110 93410-120242-4 Percent Surrogate Recovery (Acceptance Limits) Trip Blank 103 102 101 99LCS 410-361506/1003 Lab Control Sample 104 93 103 94LCS 410-361506/1004 Lab Control Sample 107 93 109 95MB 410-361506/6 Method Blank Surrogate Legend DCA = 1,2-Dichloroethane-d4 (Surr) BFB = 4-Bromofluorobenzene (Surr) DBFM = Dibromofluoromethane (Surr) TOL = Toluene-d8 (Surr) Eurofins Lancaster Laboratories Environment Testing, LLC Page 16 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Method: 6200 B-2011 - Volatile Organic Compounds Client Sample ID: Method BlankLab Sample ID: MB 410-361506/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 361506 RL MDL 1,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 04/06/23 11:31 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.50 0.50 ug/L 04/06/23 11:31 11,1,1-Trichloroethane <0.50 0.50 ug/L 04/06/23 11:31 11,1,2,2-Tetrachloroethane <0.50 0.50 ug/L 04/06/23 11:31 11,1,2-Trichloroethane <0.50 0.50 ug/L 04/06/23 11:31 11,1-Dichloroethane <0.50 0.50 ug/L 04/06/23 11:31 11,1-Dichloroethene <0.50 0.50 ug/L 04/06/23 11:31 11,1-Dichloropropene <0.50 0.50 ug/L 04/06/23 11:31 11,2,3-Trichlorobenzene <2.0 2.0 ug/L 04/06/23 11:31 11,2,3-Trichloropropane <0.50 0.50 ug/L 04/06/23 11:31 11,2,4-Trichlorobenzene <0.50 0.50 ug/L 04/06/23 11:31 11,2,4-Trimethylbenzene <2.0 2.0 ug/L 04/06/23 11:31 11,2-Dibromo-3-Chloropropane <0.50 0.50 ug/L 04/06/23 11:31 11,2-Dibromoethane <0.50 0.50 ug/L 04/06/23 11:31 11,2-Dichlorobenzene <0.50 0.50 ug/L 04/06/23 11:31 11,2-Dichloroethane <0.50 0.50 ug/L 04/06/23 11:31 11,2-Dichloropropane <0.50 0.50 ug/L 04/06/23 11:31 11,3,5-Trimethylbenzene <0.50 0.50 ug/L 04/06/23 11:31 11,3-Dichlorobenzene <0.50 0.50 ug/L 04/06/23 11:31 11,3-Dichloropropane <0.50 0.50 ug/L 04/06/23 11:31 11,4-Dichlorobenzene <0.50 0.50 ug/L 04/06/23 11:31 12,2-Dichloropropane <0.50 0.50 ug/L 04/06/23 11:31 12-Chlorotoluene <0.50 0.50 ug/L 04/06/23 11:31 14-Chlorotoluene <0.50 0.50 ug/L 04/06/23 11:31 1Benzene <0.50 0.50 ug/L 04/06/23 11:31 1Bromobenzene <0.50 0.50 ug/L 04/06/23 11:31 1Bromochloromethane <0.50 0.50 ug/L 04/06/23 11:31 1Bromodichloromethane <1.0 1.0 ug/L 04/06/23 11:31 1Bromoform <0.50 0.50 ug/L 04/06/23 11:31 1Bromomethane <0.50 0.50 ug/L 04/06/23 11:31 1Carbon tetrachloride <0.50 0.50 ug/L 04/06/23 11:31 1Chlorobenzene <0.50 0.50 ug/L 04/06/23 11:31 1Chloroethane <0.50 0.50 ug/L 04/06/23 11:31 1Chloroform <0.50 0.50 ug/L 04/06/23 11:31 1cis-1,2-Dichloroethene <0.50 0.50 ug/L 04/06/23 11:31 1cis-1,3-Dichloropropene <0.80 0.80 ug/L 04/06/23 11:31 1Chloromethane <0.50 0.50 ug/L 04/06/23 11:31 1Dibromochloromethane <0.50 0.50 ug/L 04/06/23 11:31 1Dibromomethane <0.50 0.50 ug/L 04/06/23 11:31 1Dichlorodifluoromethane <0.50 0.50 ug/L 04/06/23 11:31 1di-Isopropyl ether <200 200 ug/L 04/06/23 11:31 1Ethanol <0.50 0.50 ug/L 04/06/23 11:31 1Ethylbenzene <0.50 0.50 ug/L 04/06/23 11:31 1Hexachlorobutadiene <0.50 0.50 ug/L 04/06/23 11:31 1Isopropylbenzene <0.50 0.50 ug/L 04/06/23 11:31 1Methyl tertiary butyl ether <0.80 0.80 ug/L 04/06/23 11:31 1Methylene Chloride <0.50 0.50 ug/L 04/06/23 11:31 1n-Butylbenzene <0.50 0.50 ug/L 04/06/23 11:31 1N-Propylbenzene Eurofins Lancaster Laboratories Environment Testing, LLC Page 17 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Method BlankLab Sample ID: MB 410-361506/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 361506 RL MDL Naphthalene <0.50 0.50 ug/L 04/06/23 11:31 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.50 0.50 ug/L 04/06/23 11:31 1p-Isopropyltoluene <0.50 0.50 ug/L 04/06/23 11:31 1sec-Butylbenzene <0.50 0.50 ug/L 04/06/23 11:31 1Styrene <0.50 0.50 ug/L 04/06/23 11:31 1tert-Butylbenzene <0.50 0.50 ug/L 04/06/23 11:31 1Tetrachloroethene <0.50 0.50 ug/L 04/06/23 11:31 1Toluene <0.50 0.50 ug/L 04/06/23 11:31 1trans-1,2-Dichloroethene <0.50 0.50 ug/L 04/06/23 11:31 1trans-1,3-Dichloropropene <0.50 0.50 ug/L 04/06/23 11:31 1Trichloroethene <0.50 0.50 ug/L 04/06/23 11:31 1Trichlorofluoromethane <0.50 0.50 ug/L 04/06/23 11:31 1Vinyl chloride <0.50 0.50 ug/L 04/06/23 11:31 1Xylenes, Total 1,2-Dichloroethane-d4 (Surr)107 70-130 04/06/23 11:31 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 93 04/06/23 11:31 14-Bromofluorobenzene (Surr)70-130 109 04/06/23 11:31 1Dibromofluoromethane (Surr)70-130 95 04/06/23 11:31 1Toluene-d8 (Surr)70-130 Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-361506/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 361506 1,1,1,2-Tetrachloroethane 10.0 11.4 ug/L 114 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,1,1-Trichloroethane 10.0 10.8 ug/L 108 70 -130 1,1,2,2-Tetrachloroethane 10.0 10.8 ug/L 108 70 -130 1,1,2-Trichloroethane 10.0 10.9 ug/L 109 70 -130 1,1-Dichloroethane 10.0 10.4 ug/L 104 70 -130 1,1-Dichloroethene 10.0 10.6 ug/L 106 70 -130 1,1-Dichloropropene 10.0 11.0 ug/L 110 70 -130 1,2,3-Trichlorobenzene 10.0 10.6 ug/L 106 70 -130 1,2,3-Trichloropropane 10.0 10.6 ug/L 106 70 -130 1,2,4-Trichlorobenzene 10.0 11.0 ug/L 110 70 -130 1,2,4-Trimethylbenzene 10.0 11.4 ug/L 114 70 -130 1,2-Dibromo-3-Chloropropane 10.0 11.0 ug/L 110 70 -130 1,2-Dibromoethane 10.0 10.9 ug/L 109 70 -130 1,2-Dichlorobenzene 10.0 10.9 ug/L 109 70 -130 1,2-Dichloroethane 10.0 10.9 ug/L 109 70 -130 1,2-Dichloropropane 10.0 10.9 ug/L 109 70 -130 1,3,5-Trimethylbenzene 10.0 11.3 ug/L 113 70 -130 1,3-Dichlorobenzene 10.0 10.9 ug/L 109 70 -130 1,3-Dichloropropane 10.0 10.9 ug/L 109 70 -130 1,4-Dichlorobenzene 10.0 10.8 ug/L 108 70 -130 2,2-Dichloropropane 10.0 10.7 ug/L 107 70 -130 2-Chlorotoluene 10.0 10.9 ug/L 109 70 -130 4-Chlorotoluene 10.0 11.0 ug/L 110 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 18 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-361506/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 361506 Benzene 10.0 10.7 ug/L 107 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Bromobenzene 10.0 10.8 ug/L 108 70 -130 Bromochloromethane 10.0 11.1 ug/L 111 70 -130 Bromodichloromethane 10.0 11.3 ug/L 113 70 -130 Bromoform 10.0 12.1 ug/L 121 70 -130 Bromomethane 10.0 10.5 ug/L 105 70 -130 Carbon tetrachloride 10.0 11.3 ug/L 113 70 -130 Chlorobenzene 10.0 10.7 ug/L 107 70 -130 Chloroethane 10.0 9.89 ug/L 99 70 -130 Chloroform 10.0 10.7 ug/L 107 70 -130 cis-1,2-Dichloroethene 10.0 10.7 ug/L 107 70 -130 cis-1,3-Dichloropropene 10.0 11.4 ug/L 114 70 -130 Chloromethane 10.0 10.7 ug/L 107 70 -130 Dibromochloromethane 10.0 11.5 ug/L 115 70 -130 Dibromomethane 10.0 11.1 ug/L 111 70 -130 Dichlorodifluoromethane 10.0 11.7 ug/L 117 70 -130 di-Isopropyl ether 10.0 10.3 ug/L 103 70 -130 Ethylbenzene 10.0 11.0 ug/L 110 70 -130 Hexachlorobutadiene 10.0 11.5 ug/L 115 70 -130 Isopropylbenzene 10.0 11.6 ug/L 116 70 -130 m&p-Xylene 20.0 22.4 ug/L 112 70 -130 Methyl tertiary butyl ether 10.0 11.0 ug/L 110 70 -130 Methylene Chloride 10.0 10.6 ug/L 106 70 -130 n-Butylbenzene 10.0 11.1 ug/L 111 70 -130 N-Propylbenzene 10.0 10.9 ug/L 109 70 -130 Naphthalene 10.0 11.0 ug/L 110 70 -130 o-Xylene 10.0 11.4 ug/L 114 70 -130 p-Isopropyltoluene 10.0 11.4 ug/L 114 70 -130 sec-Butylbenzene 10.0 11.4 ug/L 114 70 -130 Styrene 10.0 11.7 ug/L 117 70 -130 tert-Butylbenzene 10.0 11.3 ug/L 113 70 -130 Tetrachloroethene 10.0 11.0 ug/L 110 70 -130 Toluene 10.0 10.7 ug/L 107 70 -130 trans-1,2-Dichloroethene 10.0 10.4 ug/L 104 70 -130 trans-1,3-Dichloropropene 10.0 11.1 ug/L 111 70 -130 Trichloroethene 10.0 11.0 ug/L 110 70 -130 Trichlorofluoromethane 10.0 8.86 ug/L 89 70 -130 Vinyl chloride 10.0 10.9 ug/L 109 70 -130 Xylenes, Total 30.0 33.8 ug/L 113 70 -130 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 103 LCS LCS Qualifier Limits%Recovery 1024-Bromofluorobenzene (Surr)70 -130 101Dibromofluoromethane (Surr)70 -130 99Toluene-d8 (Surr)70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 19 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-361506/1004 Matrix: Water Prep Type: Total/NA Analysis Batch: 361506 Ethanol 1000 911 ug/L 91 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 104 LCS LCS Qualifier Limits%Recovery 934-Bromofluorobenzene (Surr)70 -130 103Dibromofluoromethane (Surr)70 -130 94Toluene-d8 (Surr)70 -130 Client Sample ID: MW-5Lab Sample ID: 410-120242-1 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 361506 1,1,1,2-Tetrachloroethane <100 1000 1030 ug/L 103 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits 1,1,1-Trichloroethane <100 1000 1010 ug/L 101 70 -130 1,1,2,2-Tetrachloroethane <100 1000 948 ug/L 95 70 -130 1,1,2-Trichloroethane <100 1000 962 ug/L 96 70 -130 1,1-Dichloroethane <100 1000 867 ug/L 87 70 -130 1,1-Dichloroethene <100 1000 916 ug/L 92 70 -130 1,1-Dichloropropene <100 1000 1020 ug/L 102 70 -130 1,2,3-Trichlorobenzene <100 1000 913 ug/L 91 70 -130 1,2,3-Trichloropropane <400 1000 933 ug/L 93 70 -130 1,2,4-Trichlorobenzene <100 1000 977 ug/L 98 70 -130 1,2,4-Trimethylbenzene 980 1000 1930 ug/L 96 70 -130 1,2-Dibromo-3-Chloropropane <400 1000 909 ug/L 91 70 -130 1,2-Dibromoethane <100 1000 1070 ug/L 99 70 -130 1,2-Dichlorobenzene <100 1000 955 ug/L 95 70 -130 1,2-Dichloroethane 130 1000 1140 ug/L 102 70 -130 1,2-Dichloropropane <100 1000 983 ug/L 98 70 -130 1,3,5-Trimethylbenzene 300 1000 1300 ug/L 100 70 -130 1,3-Dichlorobenzene <100 1000 963 ug/L 96 70 -130 1,3-Dichloropropane <100 1000 959 ug/L 96 70 -130 1,4-Dichlorobenzene <100 1000 1010 ug/L 101 70 -130 2,2-Dichloropropane <100 1000 1020 ug/L 102 70 -130 2-Chlorotoluene <100 1000 1010 ug/L 101 70 -130 4-Chlorotoluene <100 1000 987 ug/L 99 70 -130 Benzene 19000 E 1000 18400 E 4 ug/L -34 70 -130 Bromobenzene <100 1000 982 ug/L 98 70 -130 Bromochloromethane <100 1000 1010 ug/L 101 70 -130 Bromodichloromethane <100 1000 1020 ug/L 102 70 -130 Bromoform <200 1000 983 ug/L 98 70 -130 Bromomethane <100 1000 840 ug/L 84 70 -130 Carbon tetrachloride <100 1000 1030 ug/L 103 70 -130 Chlorobenzene <100 1000 957 ug/L 96 70 -130 Chloroethane <100 1000 837 ug/L 84 70 -130 Chloroform <100 1000 980 ug/L 98 70 -130 cis-1,2-Dichloroethene 370 1000 1350 ug/L 99 70 -130 cis-1,3-Dichloropropene <100 1000 918 ug/L 92 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 20 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-5Lab Sample ID: 410-120242-1 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 361506 Chloromethane <160 1000 770 ug/L 77 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Dibromochloromethane <100 1000 990 ug/L 99 70 -130 Dibromomethane <100 1000 1010 ug/L 101 70 -130 Dichlorodifluoromethane <100 1000 824 ug/L 82 70 -130 di-Isopropyl ether 1300 F1 1000 1950 F1 ug/L 68 70 -130 Ethanol <40000 100000 99200 ug/L 99 70 -130 Ethylbenzene 1200 1000 2110 ug/L 94 70 -130 Hexachlorobutadiene <100 1000 1050 ug/L 105 70 -130 Isopropylbenzene <100 1000 1060 ug/L 104 70 -130 m&p-Xylene 5100 2000 6830 ug/L 88 70 -130 Methyl tertiary butyl ether <100 1000 867 ug/L 87 70 -130 Methylene Chloride <160 1000 919 ug/L 92 70 -130 n-Butylbenzene <100 1000 999 ug/L 100 70 -130 N-Propylbenzene <100 1000 1020 ug/L 97 70 -130 Naphthalene 400 1000 1330 ug/L 93 70 -130 o-Xylene 2700 1000 3610 ug/L 86 70 -130 p-Isopropyltoluene <100 1000 1010 ug/L 101 70 -130 sec-Butylbenzene <100 1000 1000 ug/L 100 70 -130 Styrene 260 1000 1330 ug/L 107 70 -130 tert-Butylbenzene <100 1000 914 ug/L 91 70 -130 Tetrachloroethene <100 1000 1000 ug/L 98 70 -130 Toluene 14000 E 1000 14400 E 4 ug/L -0.4 70 -130 trans-1,2-Dichloroethene <100 1000 858 ug/L 86 70 -130 trans-1,3-Dichloropropene <100 1000 961 ug/L 96 70 -130 Trichloroethene <100 1000 988 ug/L 96 70 -130 Trichlorofluoromethane <100 F1 1000 614 F1 ug/L 61 70 -130 Vinyl chloride <100 1000 785 ug/L 79 70 -130 Xylenes, Total 7800 3000 10400 ug/L 88 70 -130 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 103 MS MS Qualifier Limits%Recovery 1004-Bromofluorobenzene (Surr)70 -130 100Dibromofluoromethane (Surr)70 -130 98Toluene-d8 (Surr)70 -130 Client Sample ID: MW-5Lab Sample ID: 410-120242-1 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 361506 1,1,1,2-Tetrachloroethane <100 1000 1110 ug/L 111 70 -130 8 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD 1,1,1-Trichloroethane <100 1000 1120 ug/L 112 70 -130 10 30 1,1,2,2-Tetrachloroethane <100 1000 1040 ug/L 104 70 -130 10 30 1,1,2-Trichloroethane <100 1000 1030 ug/L 103 70 -130 7 30 1,1-Dichloroethane <100 1000 1010 ug/L 101 70 -130 15 30 1,1-Dichloroethene <100 1000 1030 ug/L 103 70 -130 12 30 1,1-Dichloropropene <100 1000 1100 ug/L 110 70 -130 8 30 1,2,3-Trichlorobenzene <100 1000 1030 ug/L 103 70 -130 12 30 Eurofins Lancaster Laboratories Environment Testing, LLC Page 21 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-5Lab Sample ID: 410-120242-1 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 361506 1,2,3-Trichloropropane <400 1000 1010 ug/L 101 70 -130 8 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD 1,2,4-Trichlorobenzene <100 1000 1070 ug/L 107 70 -130 9 30 1,2,4-Trimethylbenzene 980 1000 2120 ug/L 114 70 -130 9 30 1,2-Dibromo-3-Chloropropane <400 1000 955 ug/L 96 70 -130 5 30 1,2-Dibromoethane <100 1000 1150 ug/L 107 70 -130 7 30 1,2-Dichlorobenzene <100 1000 1040 ug/L 104 70 -130 8 30 1,2-Dichloroethane 130 1000 1210 ug/L 108 70 -130 5 30 1,2-Dichloropropane <100 1000 1070 ug/L 107 70 -130 8 30 1,3,5-Trimethylbenzene 300 1000 1430 ug/L 113 70 -130 10 30 1,3-Dichlorobenzene <100 1000 1040 ug/L 104 70 -130 7 30 1,3-Dichloropropane <100 1000 1030 ug/L 103 70 -130 7 30 1,4-Dichlorobenzene <100 1000 1090 ug/L 109 70 -130 8 30 2,2-Dichloropropane <100 1000 1120 ug/L 112 70 -130 9 30 2-Chlorotoluene <100 1000 1100 ug/L 110 70 -130 8 30 4-Chlorotoluene <100 1000 1080 ug/L 108 70 -130 9 30 Benzene 19000 E 1000 20000 E 4 ug/L 119 70 -130 8 30 Bromobenzene <100 1000 1080 ug/L 108 70 -130 10 30 Bromochloromethane <100 1000 1070 ug/L 107 70 -130 6 30 Bromodichloromethane <100 1000 1080 ug/L 108 70 -130 6 30 Bromoform <200 1000 1060 ug/L 106 70 -130 7 30 Bromomethane <100 1000 994 ug/L 99 70 -130 17 30 Carbon tetrachloride <100 1000 1140 ug/L 114 70 -130 10 30 Chlorobenzene <100 1000 1020 ug/L 102 70 -130 7 30 Chloroethane <100 1000 941 ug/L 94 70 -130 12 30 Chloroform <100 1000 1050 ug/L 105 70 -130 7 30 cis-1,2-Dichloroethene 370 1000 1460 ug/L 109 70 -130 8 30 cis-1,3-Dichloropropene <100 1000 1000 ug/L 100 70 -130 9 30 Chloromethane <160 1000 936 ug/L 94 70 -130 19 30 Dibromochloromethane <100 1000 1060 ug/L 106 70 -130 7 30 Dibromomethane <100 1000 1090 ug/L 109 70 -130 8 30 Dichlorodifluoromethane <100 1000 953 ug/L 95 70 -130 15 30 di-Isopropyl ether 1300 F1 1000 2320 ug/L 105 70 -130 18 30 Ethanol <40000 100000 111000 ug/L 111 70 -130 12 30 Ethylbenzene 1200 1000 2290 ug/L 112 70 -130 8 30 Hexachlorobutadiene <100 1000 1150 ug/L 115 70 -130 9 30 Isopropylbenzene <100 1000 1150 ug/L 113 70 -130 9 30 m&p-Xylene 5100 2000 7340 ug/L 113 70 -130 7 30 Methyl tertiary butyl ether <100 1000 1060 ug/L 106 70 -130 20 30 Methylene Chloride <160 1000 1090 ug/L 109 70 -130 17 30 n-Butylbenzene <100 1000 1090 ug/L 109 70 -130 9 30 N-Propylbenzene <100 1000 1130 ug/L 107 70 -130 10 30 Naphthalene 400 1000 1510 ug/L 111 70 -130 13 30 o-Xylene 2700 1000 3890 ug/L 114 70 -130 8 30 p-Isopropyltoluene <100 1000 1120 ug/L 112 70 -130 10 30 sec-Butylbenzene <100 1000 1120 ug/L 112 70 -130 11 30 Styrene 260 1000 1410 ug/L 116 70 -130 6 30 tert-Butylbenzene <100 1000 988 ug/L 99 70 -130 8 30 Tetrachloroethene <100 1000 1090 ug/L 106 70 -130 8 30 Toluene 14000 E 1000 15400 E 4 ug/L 99 70 -130 7 30 Eurofins Lancaster Laboratories Environment Testing, LLC Page 22 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-5Lab Sample ID: 410-120242-1 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 361506 trans-1,2-Dichloroethene <100 1000 1050 ug/L 105 70 -130 20 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD trans-1,3-Dichloropropene <100 1000 1040 ug/L 104 70 -130 8 30 Trichloroethene <100 1000 1080 ug/L 106 70 -130 9 30 Trichlorofluoromethane <100 F1 1000 720 ug/L 72 70 -130 16 30 Vinyl chloride <100 1000 942 ug/L 94 70 -130 18 30 Xylenes, Total 7800 3000 11200 ug/L 114 70 -130 7 30 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 104 MSD MSD Qualifier Limits%Recovery 994-Bromofluorobenzene (Surr)70 -130 99Dibromofluoromethane (Surr)70 -130 97Toluene-d8 (Surr)70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 23 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC GC/MS VOA Analysis Batch: 361506 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 6200 B-2011410-120242-1 MW-5 Total/NA Groundwater 6200 B-2011410-120242-1 - DL MW-5 Total/NA Groundwater 6200 B-2011410-120242-2 MW-9 Total/NA Groundwater 6200 B-2011410-120242-2 - DL MW-9 Total/NA Groundwater 6200 B-2011410-120242-3 DW-2 Total/NA Groundwater 6200 B-2011410-120242-3 - DL DW-2 Total/NA Water 6200 B-2011410-120242-4 Trip Blank Total/NA Water 6200 B-2011MB 410-361506/6 Method Blank Total/NA Water 6200 B-2011LCS 410-361506/1003 Lab Control Sample Total/NA Water 6200 B-2011LCS 410-361506/1004 Lab Control Sample Total/NA Groundwater 6200 B-2011410-120242-1 MS MW-5 Total/NA Groundwater 6200 B-2011410-120242-1 MSD MW-5 Total/NA Eurofins Lancaster Laboratories Environment Testing, LLC Page 24 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Kleinfelder Inc Job ID: 410-120242-1 Project/Site: 4-2094 - Charlotte, NC Client Sample ID: MW-5 Lab Sample ID: 410-120242-1 Matrix: GroundwaterDate Collected: 03/24/23 09:15 Date Received: 03/25/23 09:50 Analysis 6200 B-2011 UJML200361506 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/06/23 12:19 Analysis 6200 B-2011 DL 2000 361506 UJML ELLETotal/NA 04/06/23 12:43 Client Sample ID: MW-9 Lab Sample ID: 410-120242-2 Matrix: GroundwaterDate Collected: 03/23/23 16:51 Date Received: 03/25/23 09:50 Analysis 6200 B-2011 UJML200361506 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/06/23 13:07 Analysis 6200 B-2011 DL 2000 361506 UJML ELLETotal/NA 04/06/23 13:31 Client Sample ID: DW-2 Lab Sample ID: 410-120242-3 Matrix: GroundwaterDate Collected: 03/23/23 15:00 Date Received: 03/25/23 09:50 Analysis 6200 B-2011 UJML100361506 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/06/23 13:55 Analysis 6200 B-2011 DL 1000 361506 UJML ELLETotal/NA 04/06/23 14:19 Client Sample ID: Trip Blank Lab Sample ID: 410-120242-4 Matrix: WaterDate Collected: 03/23/23 00:00 Date Received: 03/25/23 09:50 Analysis 6200 B-2011 UJML1361506 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 04/06/23 11:55 Laboratory References: ELLE = Eurofins Lancaster Laboratories Environment Testing, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL (717)656-2300 Eurofins Lancaster Laboratories Environment Testing, LLC Page 25 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Accreditation/Certification Summary Client: Kleinfelder Inc Job ID: 410-120242-1 Project/Site: 4-2094 - Charlotte, NC Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC The accreditations/certifications listed below are applicable to this report. Authority Program Identification Number Expiration Date North Carolina (WW/SW)State 521 12-31-23 Eurofins Lancaster Laboratories Environment Testing, LLC Page 26 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Method Summary Job ID: 410-120242-1Client: Kleinfelder Inc Project/Site: 4-2094 - Charlotte, NC Method Method Description LaboratoryProtocol SM6200 B-2011 Volatile Organic Compounds ELLE SW8465030BPurge and Trap ELLE Protocol References: SM = "Standard Methods For The Examination Of Water And Wastewater" SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: ELLE = Eurofins Lancaster Laboratories Environment Testing, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL (717)656-2300 Eurofins Lancaster Laboratories Environment Testing, LLC Page 27 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Sample Summary Client: Kleinfelder Inc Job ID: 410-120242-1 Project/Site: 4-2094 - Charlotte, NC Lab Sample ID Client Sample ID Matrix Collected Received 410-120242-1 MW-5 Groundwater 03/24/23 09:15 03/25/23 09:50 410-120242-2 MW-9 Groundwater 03/23/23 16:51 03/25/23 09:50 410-120242-3 DW-2 Groundwater 03/23/23 15:00 03/25/23 09:50 410-120242-4 Trip Blank Water 03/23/23 00:00 03/25/23 09:50 Eurofins Lancaster Laboratories Environment Testing, LLCPage 28 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page 29 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Login Sample Receipt Checklist Client: Kleinfelder Inc Job Number: 410-120242-1 Login Number: 120242 Question Answer Comment Creator: Roth, Stephanie List Source: Eurofins Lancaster Laboratories Environment Testing, LLC List Number: 1 TrueThe cooler's custody seal is intact. TrueThe cooler or samples do not appear to have been compromised or tampered with. TrueSamples were received on ice. TrueCooler Temperature is acceptable (</=6C, not frozen). TrueCooler Temperature is recorded. N/AWV: Container Temperature is acceptable (</=6C, not frozen). N/AWV: Container Temperature is recorded. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. FalseThere are no discrepancies between the containers received and the COC.Refer to Job Narrative for details. TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueAppropriate sample containers are used. TrueSample bottles are completely filled. TrueThere is sufficient vol. for all requested analyses. TrueIs the Field Sampler's name present on COC? TrueSample custody seals are intact. TrueVOA sample vials do not have headspace >6mm in diameter (none, if from WV)? Eurofins Lancaster Laboratories Environment Testing, LLC Page 30 of 30 4/10/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15