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HomeMy WebLinkAboutWS-7691_7691_CA_MRP_20250115_GNC 25003023.001A | RAL25R176846 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com KLEINFELDER 200 Regency Forest Dr. Suite 225, Cary NC 27518 p | 919.755.5011 January 15, 2024 Kleinfelder File No. RAL25R176846 Mr. Chintan Amin APAC-Atlantic, Inc. 900 Ashwood Parkway | Suite 700 Atlanta, Georgia 30338 SUBJECT: Annual Groundwater Monitoring Report 2024 Former GNC Energy Incident No. 7691 100 South Chimney Rock Road Greensboro, Guilford County, North Carolina Kleinfelder File No. 25003023.001A Dear Mr. Amin: Kleinfelder is pleased to provide its report detailing the groundwater sampling event conducted at the subject site in December 2024 as required by the North Carolina Department of Environmental Quality (NCDEQ). A copy of this report (paper and electronic) has been forwarded to Guilford County Department of Environmental Health. 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, INC. Firm License No. F-1312 Michael J. Burns, PG Environmental Program Manager MJB:jrm Enclosure cc: Gene Mao, Guilford County 25003023.001A | RAL25R176846 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com ANNUAL GROUNDWATER MONITORING REPORT 2024 FORMER GNC ENERGY INCIDENT NO. 7691 100 S. CHIMNEY ROCK ROAD GREENSBORO, NORTH CAROLINA PROJECT NO. 25003023.001A January 15, 2025 Copyright 2025 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. 25003023.001A | RAL25R176846 Page ii of iii January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com ANNUAL GROUNDWATER MONITORING REPORT SITE INFORMATION SITE NAME AND LOCATION: Former GNC Energy 100 South Chimney Rock Road Greensboro, Guilford County, North Carolina FACILITY ID NO.: Unknown LATITUDE AND LONGITUDE: 36.075472‘N/79.920222‘W INCIDENT NO.: 7691 LAND USE CATEGORY: Industrial/Commercial DATE OF REPORT: January 15, 2025 PROPERTY OWNER: AA Properties — Greensboro, Inc. PO Box 12626 Roanoke, Virginia 24027 336-294-0025 CONSULTANT: Kleinfelder, Inc. 200 Regency Forest Drive. | Suite 225 Raleigh, North Carolina 27518 Attention: Mr. Michael Burns Phone: 919.755.5011 RELEASE INFORMATION: The release addressed in this report originated from a leak from underground piping discovered in 1987. SEAL AND SIGNATURE OF CERTIFYING LICENSED GEOLOGIST I, Michael J. Burns, PG, a Licensed Geologist for Kleinfelder, Inc., 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 licensed to practice Geology | Engineering in North Carolina. The certification numbers of the corporation are C-521 | F-1312. 25003023.001A | RAL25R176846 Page iii of iii January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com TABLE OF CONTENTS 1 BACKGROUND .............................................................................................................. 1 1.1 SUMMARY OF REMEDIAL ACTIVITIES ............................................................ 2 2 PURPOSE ....................................................................................................................... 9 3 METHODS .................................................................................................................... 10 3.1 MONITORING WELL SAMPLING ......................................................................10 4 RESULTS ..................................................................................................................... 11 4.1 GROUNDWATER FLOW DIRECTION ..............................................................11 4.2 MONITORING WELL SAMPLING RESULTS ....................................................11 5 CONCLUSIONS ............................................................................................................ 13 6 LIMITATIONS ............................................................................................................... 14 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 Project Location 2 Plant Layout Map 2a Site Map with Monitoring Well Locations 3 Shallow Potentiometric Surface Map 4 Benzene Concentrations GRAPHS 1 MW-27 Benzene vs. Water Level 2 MW-21 Benzene vs. Water Level 3 MW-17 Benzene vs. Water Level 4 MW-21D Benzene vs. Water Level APPENDICES A Laboratory Report and Chain-of-Custody Document 25003023.001A | RAL25R176846 Page 1 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com ANNUAL GROUNDWATER MONITORING REPORT 2024 FORMER GNC ENERGY INCIDENT NO. 7691 100 S. CHIMNEY ROCK ROAD, GREENSBORO, NORTH CAROLINA 1 BACKGROUND The site is located at 100 S. Chimney Rock Road in Greensboro, Guilford County, North Carolina (Figure 1). The site consists of approximately 12 acres of industrially developed land located southwest of the intersection of W. Market Street and S. Chimney Rock Road in Greensboro, North Carolina. A review of site information obtained from previous environmental reports indicates that the site has been used for bulk petroleum storage since the late 1940s. The current owner, AA Properties – Greensboro, Inc., purchased the property in 2004. AA Properties – Greensboro, Inc. currently uses the site to store liquid asphalt for distribution. There are bulk above ground storage tanks, above ground product lines, and a storm water retention pond located within a clay-lined secondary containment basin. There is also a truck loading rack, warehouse building, office building, covered storage/mix area, railroad spur and asphalt parking and driveway areas on the site. The railroad spur is located in the northern portion of the site. The site is completely fenced to prevent unauthorized access. The bulk above ground storage tanks located on the property are shown on Figure 2 in the Appendix. AST SIZE (GALLONS) CONTENTS 1,008,000 Liquid Asphalt 2 each - 1,050,000 Liquid Asphalt 4 each - 630,000 Liquid Asphalt 1,260,000 Liquid Asphalt 2,184,000 Liquid Asphalt 15,000 #2 Fuel Oil 10,000 #2 Fuel Oil 1,100,000 Liquid Asphalt 2,268,000 Liquid Asphalt 25003023.001A | RAL25R176846 Page 2 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com AST SIZE (GALLONS) CONTENTS 6 each - 40,000 Liquid Asphalt 210,000 Liquid Asphalt 10,000 Mineral Oil based asphalt additive 8,017 AD-Here Fatty amine asphalt additive 3,049 AD-Here Fatty amine asphalt additive 7,630 x 3 compartments Fatty amine asphalt additive 2 each - 8,000 PMA Process/Mix Tank 3 each – 440 Hot Oil The adjoining properties include the TransMontaigne Operating Co. (formerly Unocal, Gulf Oil, Louis Drufus) to the west; the City of Greensboro waste transfer station (former American Beverage Company) to the south; Motiva Enterprises (former Texaco and Saudi Refining Companies) to the east across Chimney Rock Road; and a railroad to the north. Figures from previous reports and topographic maps indicated that there was a Texaco pipeline located to the south of the property line. Current topographic maps do not show the pipeline. 1.1 SUMMARY OF REMEDIAL ACTIVITIES The Former GNC Energy facility is located at 100 S. Chimney Rock Road in Greensboro, Guilford County, North Carolina (Figure 1). A site plan of the facility is provided as Figure 2a. Based on review of groundwater quality data, there appears to be at least three (3) separate plumes. Several phases of assessment activities have been performed at the site since 1987. A summary, as provided in previous reports, of the assessment and remedial activities that have occurred at the site is provided below. Based on a Remedial Action Plan prepared by Hatcher Incorporated dated March 20, 1987, NCDEQ determined that there had been a petroleum release from GNC Energy’s transmission lines in February 1987. Five (5) test pits were dug to evaluate the location of the petroleum release. The release was originally discovered in a sump reportedly about 500 feet down-gradient from the origin. Free product was pumped from the excavated test pits and the sump to holding tanks on the GNC Energy property. The soils in the excavation pits were described as heavy 25003023.001A | RAL25R176846 Page 3 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com clay or saprolite. It was believed that the release was migrating along the numerous pipeline trenches on the property. In January 1990, a Proposed Study Plan was prepared by Bain & Palmer, Inc. to evaluate the magnitude of the petroleum release as directed by a Special Order of Consent prepared by the North Carolina Environmental Management Commission. The plan provided details on the soil and groundwater study proposed to evaluate the release. Based on information provided in an April 30, 1990, Hydrogeologic Investigation report, a soil gas survey, water supply well inventory, soil sampling, monitoring well installation and groundwater sampling was conducted on the property in February, March and April of 1990. The soil gas survey noted elevated organic vapor analyzer (OVA) readings at the truck loading rack, petroleum distillation unit, and near aboveground storage tanks #1, (near current MW-6), #4 (near current MW-13), #5 (near current MW-16 and MW- 13), and #9 (near current MW-4). Soil samples collected in the areas of the elevated organic vapor analyzer (OVA) readings indicated concentrations above regulatory levels that were reported as kerosene, diesel and gasoline. A well inventory noted 16 nearby properties with water supply wells, as well as an onsite water supply well at a depth of 85 feet. As part of the investigation 6 shallow monitoring wells (MW-1 through MW-6) were installed to depths ranging from 18 feet to 20 feet below the ground surface (bgs), with 15 feet of well screen. Groundwater laboratory results indicated contamination above regulatory levels in all 6 monitoring wells and the onsite water supply well. No free product was reported in the monitoring wells. Slug tests were conducted at monitoring wells MW-1, MW-2 and MW-5 with an average hydraulic conductivity of 1x10-5 cm/sec. In March 1993, groundwater level measurements indicated 2 feet of free product (noted as kerosene or #2 diesel) in monitoring well MW-2, and 3 feet of free product (noted as gasoline) in monitoring well MW-5. A Corrective Action Plan was submitted by Shewmaker Environmental, Inc. (no date on the report) that recommended pump and treat and soil vapor extraction to remediate site groundwater and soils, respectively. 25003023.001A | RAL25R176846 Page 4 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com A January 24, 1994, Environmental Assessment Report prepared by Shewmaker Environmental, Inc. noted that between 1990 and 1992 a total of 14 monitoring wells were installed (MW-1 through MW-14D). Monitoring wells, MW-11S, MW-11D, MW-12S, MW-12D, MW-14S and MW- 14D were installed on the adjacent property to the west. In 1993, monitoring wells AMW-1 through AMW-7 were installed on the adjacent property to the west (AMW-6 and AMW-7) and south (AMW-1 through AMW-5). Groundwater samples were collected from monitoring wells AMW-1 through AMW-7 on December 3, 1993, and from MW-1 through MW-14D and AMW-1 through AMW-7 on January 7, 1994. The samples appear to have only been evaluated for benzene, toluene, ethylbenzene and xylenes (BTEX). Benzene was detected in monitoring well AMW-1 slightly above the regulatory standard during the December 1993 sampling event. Groundwater contamination above regulatory standards were detected in monitoring wells MW- 1, MW-2, MW-3, MW-4, MW-5S, MW-5D, MW-6, MW-8, MW-9, MW- 11S, MW-11D, and MW- 12D during the January 1994 sampling. In April 1997, Applied Resource Management, PC submitted a Comprehensive Site Assessment (CSA) for the property. The CSA indicated that there are no known water supply wells within 1,000 feet. The CSA report noted that there were 13 type II monitoring wells (MW-1 through MW-12 and MW-17), and 4 Type III telescoping monitoring wells (MW-2D, MW-5D, MW-11D and MW-12D). As part of the CSA, 8 additional monitoring wells (MW-13, MW-14, MW-15, MW- 16, MW-19, MW-20, MW-21 and MW-24) were installed on the property. Well construction information is provided in Table 1. Information included in the CSA indicated that there were 2 separate free product plumes, 1 in the northeastern property corner and the other in the central portion of the property. The onsite monitoring wells (except wells with free product) and 4 offsite monitoring wells (MW-34, AW-6, AW-7 and MW-33) located on the adjacent property to the west (former Louis Dreyfus) related to an investigation on that property was sampled in January of 1997. Eight of the monitoring wells indicated concentrations that exceeded regulatory levels. On May 27, 1998, Applied Resource Management, PC submitted a Corrective Action Plan (CAP) for the property. The CAP recommended installation of a free product recovery trench along the southern property boundary, the installation of a soil vapor extraction system and natural attenuation of groundwater. The groundwater recovery trench was installed and natural 25003023.001A | RAL25R176846 Page 5 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com attenuation monitoring for groundwater was implemented. The construction details of the groundwater recovery trench are not available. It does not appear that the soil vapor extraction system was installed. Groundwater monitoring events were conducted by Applied Resource Management, PC on May 20, 1997; November 18, 1999; June 19, 2002; January 14, 2004; May 26, 2006; January 24, 2007; April 26, 2007; July 26, 2007; October 25, 2007; March 19, 2008; September 23, 2008; March 25-26, 2008; December 20-21, 2011; and June 6, 2012. Monitoring wells MW-1, MW-3R, MW-5S, MW-5D, MW-12S, MW-12D, MW-15, MW-25, MW-26 and AMW-1 were noted as having been destroyed. As part of the June 2012 sampling event, monitoring well MW-5SR was installed to replace destroyed well MW-5S and monitoring well MW-5DR was installed to replace well MW- 5D. In December 2012, May 2013, December 2013, May 2014, and December 2014 Environmental Services, Inc. conducted groundwater monitoring events. Samples were collected from the all of the existing onsite monitoring wells (MW-2D, MW-4, MW-5SR, MW-5DR, MW-6, MW-7, MW- 8, MW-9, MW-10, MW-13, MW-14, MW-16, MW-17, MW-19, MW-20, MW-21, MW-22, MW- 23, MW-24, MW-27 and MW-28) and offsite monitoring wells MW-11S, MW-11D and MW-34. The laboratory results indicated concentrations of BTEX, methyl tert-butyl ether (MTBE), naphthalene, di-isopropylether (DIPE) and isopropylbenzene above the 15A NCAC 02L .0202 Groundwater Quality Standards (2L standard). Benzene has been detected above the gross contaminant level (GCL) at monitoring wells MW-2S, MW-5SR and MW-21D. In June 2014, ESI submitted an injection permit to NCDEQ for the facility. The injectant product that was proposed was NutriSulfate. The injection permit was approved by NCDEQ on September 10, 2014, but a new technology cleanup plan submitted by Environmental Services, Inc., was not approved since the extent of the plumes had not been defined. According to a previous report, in August and September 2014 Environmental Services, Inc. mailed and emailed access letters to the adjacent property owners, except TransMontaigne. After reviewing the sampling data from the TransMontaigne incident, it appeared that the plumes may be too close together to distinguish between the respective releases. Motiva and the City of Greensboro were contacted regarding access. Motiva stated that they would not allow access 25003023.001A | RAL25R176846 Page 6 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com to their property to install monitoring wells but did direct their consultant to provide the most recent sampling data. The sampling data provided by Motiva’s environmental consultant for 3 monitoring wells located near their western property boundary did not indicate that the GNC plume has migrated onto their property. The City of Greensboro denied access to their property to install any wells, even along the property line with GNC. In December 2014, ESI supervised the installation of Monitoring Well MW-17D in the vicinity of MW-17, to delineate the eastern side of the deep groundwater contaminant plume. MTBE was detected at levels above the 2L standard during the December 2014 sampling event, and benzene was detected at levels above the 2L Standard during the June 2015 sampling event. In June 2015 and December 2015, Kleinfelder conducted a groundwater monitoring event. Samples were collected from the all of the existing onsite monitoring wells (MW-2S, MW-2D, MW-4, MW-5SR, MW-5DR, MW-6, MW-7, MW-8, MW-9, MW-10, MW-13, MW-14, MW-16, MW- 17, MW-17D, MW-19, MW-20, MW-21, MW-21D, MW-22, MW-23, MW-24, MW-27 and MW-28) and offsite monitoring wells MW-11S, MW-11D and MW-34. Monitoring well MW-23 was not sampled in June 2015, as it was covered and inaccessible during the event. The laboratory results indicated concentrations of BTEX, MTBE, naphthalene, DIPE and isopropylbenzene above the 2L standard. Benzene has been detected above the GCL at monitoring wells MW-2S, MW-5SR and MW-21D. In June 2016 and December 2016, Kleinfelder conducted a groundwater monitoring event. Samples were collected from the all of the existing onsite monitoring wells (MW-2S, MW- 2D, MW-4, MW-5SR, MW-5DR, MW-6, MW-7, MW-8, MW-9, MW-10, MW-13, MW-14, MW-16, MW-17, MW-17D, MW-19, MW-20, MW-21, MW-21D, MW-22, MW-23, MW-24, MW-27 and MW-28) and offsite monitoring wells MW-11S, MW-11D and MW-34. Monitoring well MW-9 was covered and inaccessible during the December 2016 event. The laboratory results indicated concentrations of BTEX, MTBE, naphthalene, DIPE and isopropylbenzene above the 2L standard. Benzene was detected above the GCL at monitoring well MW-21D. In June 2017, Kleinfelder conducted a groundwater monitoring event. Samples were collected from the all of the existing onsite monitoring wells (MW-2S, MW-2D, MW-4, MW-5SR, MW- 5DR, MW-6, MW-7, MW-8, MW-9, MW-10, MW-13, MW-14, MW-16, MW-17, MW-17D, MW- 19, MW-20, MW-21, MW-21D, MW-22, MW-23, MW-24, MW-27 and MW-28) and offsite 25003023.001A | RAL25R176846 Page 7 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com monitoring wells MW-11S, MW-11D and MW-34. The laboratory results indicated concentrations of BTEX, MTBE, naphthalene, DIPE and isopropylbenzene above the 2L standard. Benzene was detected above the GCL at monitoring wells MW- 17 and MW-21. In the Semi-Annual Groundwater Monitoring Report submitted to the Guilford County Department of Health, Kleinfelder recommended removing 14 monitoring wells from the semi-annual sampling schedule, based on no, or isolated, impacts above the NC 2L Standard across multiple sampling events. The Guilford County Department of Health approved the recommendation in a letter dated October 2, 2017. In December 2017 and May 2018, Kleinfelder conducted groundwater monitoring events. Groundwater samples were collected from 12 onsite monitoring wells MW-2S, MW-4, MW-5SR, MW-6, MW-17, MW-19, MW-20, MW-21, MW-27, MW2D, MW-5DR, MW-11D and MW-21D and one (1) offsite monitoring well (MW-11D). Monitoring well MW-2S was dry during the event and was unable to be sampled during the December 2017 event. The December 2017 monitoring event was the first sampling event where only 13 monitoring wells were sampled as approved by NCDEQ/Guilford County. The laboratory results indicated concentrations of BTEX, MTBE, naphthalene, and DIPE above the 2L standard during both monitoring events. Benzene was detected above the GCL at monitoring wells MW- 27 and MW-21D during both monitoring event. In November 2018, May 2019, and November 2019 Kleinfelder conducted groundwater monitoring events. Groundwater samples were collected from 12 onsite monitoring wells, MW- 2S, MW-4, MW-5SR, MW-6, MW-17, MW-19, MW-20, MW-21, MW-27, MW-2D, MW-5DR, and MW-21D, and one (1) offsite monitoring well, MW-11D. The laboratory results indicated concentrations of benzene, ethylbenzene, xylenes, MTBE, naphthalene, and DIPE above the 2L standard during all three monitoring events. Benzene was detected above the GCL at monitoring well MW-21D during all three events. Toluene concentrations did not exceed the 2L standard of 600 µg/L in any of the monitoring wells during the November 2018 or November 2019 sampling events; however, they did exceed the 2L standard in monitoring well MW-27 during the May 2019 sampling event. Kleinfelder’s December 2019 report recommended that semi-annual monitoring should be reduced to include only those monitoring wells that have exhibited benzene concentrations that have exceeded the GCLs within the past 5 years because site closure with restrictions only 25003023.001A | RAL25R176846 Page 8 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com depends on reduction of benzene concentrations to below the GCL. The new recommended semi- annual monitoring would have only included wells MW-2S, MW-17, MW-21, MW-21D, and MW- 27, and would have begun in June 2020. However, Kleinfelder received a letter from the Guilford County Department of Health and Human Services on May 11, 2020, identifying additional wells that needed to be added to the proposed new sampling plan to continue monitoring offsite contamination migration. In addition to the wells that Kleinfelder proposed, the Guilford County Department of Health and Human Services also required the sampling of wells MW-34, MW-2D, MW-5SR, MW-5DR, and MW-11D. In June 2020, Kleinfelder conducted the first semi-annual monitoring event of 2020. Groundwater samples were collected from monitoring wells MW-2S, MW-5SR, MW-17, MW-21, MW-27, MW- 34, MW-2D, MW-5DR, MW-11D and MW-21D. None of the concentrations detected met or exceeded the GCLs. On January 11, 12 and February 9, 2022, Kleinfelder conducted its annual monitoring event. Groundwater samples were collected for: MW-2S, MW-2D, MW-5SR, MW-5DR, MW-11D, MW- 17, MW-17D, MW-21, MW-21D, MW-27, and MW-34. On February 14-15, 2023, Kleinfelder conducted its annual monitoring event. Groundwater samples were collected for: MW-2S, MW-2D, MW-5SR, MW-5DR, MW-11D, MW-17, MW-17D, MW-21, MW-21D, MW-27, and MW-34. No constituents in the shallow or deep groundwater zones exceeded their applicable GCLs. On November 28 and 29, 2023, Kleinfelder conducted its annual monitoring event. Groundwater samples were collected for: MW-2S, MW-2D, MW-5SR, MW-5DR, MW-17, MW-17D, MW-21, MW-21D, and MW-27, and offsite monitoring well MW-11D. Offsite monitoring well MW-34 could not be located. No constituents in the shallow or deep groundwater zones exceeded their applicable GCLs. 25003023.001A | RAL25R176846 Page 9 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com 2 PURPOSE This report details the results of the December 17 and 18, groundwater sampling event. Sampling now occurs on an annual basis. Groundwater samples were collected from nine (9) onsite monitoring wells, MW-2S, MW-2D, MW-5SR, MW-5DR, MW-17, MW-17D, MW-21, MW- 21D, and MW-27, and offsite monitoring well MW-11D. Offsite monitoring well MW-34 could not be located. 25003023.001A | RAL25R176846 Page 10 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com 3 METHODS 3.1 MONITORING WELL SAMPLING A groundwater monitoring event was conducted on December 17 and 18, which was to include sampling nine (9) onsite monitoring wells and one (1) offsite monitoring well. Offsite monitoring well MW-34 could not be located. 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 2a. The monitoring wells were purged of approximately three (3) well volumes of groundwater or until dry. Groundwater samples were collected using either a peristaltic pump with disposable polyethylene tubing, a submersible Grundfos pump with disposable polyethylene tubing, or a disposable bailer with nylon twine. Field measurements of pH, specific conductivity, dissolved oxygen, oxidation reduction potential and temperature were measured, except for the monitoring wells where bailing was required. A summary of field attenuation data from the 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 jars, labeled, and maintained on ice until shipped to Eurofins Lancaster Laboratories (Eurofins) in Lancaster, Pennsylvania. The samples were analyzed for volatile organic compounds (VOCs) by EPA Method 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. 25003023.001A | RAL25R176846 Page 11 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com 4 RESULTS 4.1 GROUNDWATER FLOW DIRECTION Potentiometric data collected from monitoring wells in December 2024 were used to generate a contour plot for the shallow zone. Data presented in Table 2 and Table 3 summarizes the historical groundwater elevations at each monitoring well. Groundwater flow in the shallow zone is generally trending toward the southwest (Figure 3). 4.2 MONITORING WELL SAMPLING RESULTS Analytical results for the latest groundwater samples, which were collected on December 17 and 18, 2024, are summarized on Table 6. Groundwater samples were to be collected from nine (9) onsite monitoring wells, MW-2S, MW-2D, MW-5SR, MW-5DR, MW-17, MW-17D, MW-21, MW- 21D, and MW-27, and offsite monitoring well, MW-11D. Offsite monitoring well MW-34 could not be located. A benzene concentration map for the latest detected benzene (shallow and deep), are included in Figure 4. All of the water samples were analyzed per EPA Method 6200B. The following is a summary of the analytical results from the December 2024 sampling event: • Benzene concentrations exceeded the 2L standard of 1 microgram per liter (µg/L) in monitoring wells MW-2S (1400 µg/L), MW-5SR (580 µg/L), MW-17 (2600 µg/L), MW- 21 (4200 µg/L), MW-27 (2100 µg/L), MW-2D (1300 µg/L), MW-11D (7.6 µg/L), MW- 17D (1.4 µg/L), and MW-21D (1800 µg/L). o No benzene concentrations exceeded the gross contaminant level (GCL) of 5000 µg/L in any of the monitoring wells sampled for this event. • Toluene concentrations did not exceed the 2L standard of 600 µg/L in any of the monitoring wells sampled for this event. • Ethylbenzene concentrations exceeded the 2L standard of 600 µg/L in monitoring wells MW-17 (1500 µg/L) and MW-21 (2700 µg/L). o There were no ethylbenzene concentrations detected above the GCL of 84500 µg/L. • Xylenes concentrations exceeded the 2L standard of 500 µg/L in monitoring well MW- 21 (4900 µg/L). o There were no Xylenes concentrations detected above the GCL of 85500 µg/L. 25003023.001A | RAL25R176846 Page 12 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com • MTBE concentrations exceeded the 2L standard of 20 µg/L in monitoring wells MW- 2D (1100 µg/L), MW-5SR (150 µg/L), MW-17 (3100 µg/L), MW-27 (70 µg/L), MW-5DR (730 µg/L), and MW-11D (100 µg/L). o There were no MTBE concentrations detected above the GCL of 20000 µg/L. • Naphthalene concentrations exceeded the NC 2L groundwater standard of 6 µg/L in monitoring wells MW-2S (300 µg/L), MW-5SR (490 µg/L), MW-17 (350 µg/L), MW-27 (260 µg/L), MW-21 (290 ug/L), MW-2D (150 µg/L), and MW-21D (63 µg/L). o There were no naphthalene concentrations detected above the GCL of 6000 µg/L. A historical groundwater quality data table that includes sampling events beginning in 1987 to the current sampling event is included as Table 7. Graphs 1 through 4 show water levels vs benzene concentrations over time in monitoring wells MW-17, MW-21, MW-21D, and MW-27. The graphs appear to indicate that the decrease in benzene concentrations are independent of groundwater fluctuation. 25003023.001A | RAL25R176846 Page 13 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com 5 CONCLUSIONS Groundwater samples were collected from nine (9) onsite monitoring wells, MW-2S, MW-5SR, MW-17, MW-21, MW-27, MW-2D, MW-5DR, MW-17D and MW-21D, and offsite monitoring well, MW-11D on December 17 and 18, 2024. Offsite monitoring well MW-34 could not be located and may require a metal detector to uncover. Based on current and historical groundwater elevation data, the shallow and deep groundwater flow is generally to the southwest, but the northern portion of the shallow aquifer also flows to the north toward Market Street. No constituents in the shallow or deep groundwater zones exceeded their applicable GCLs. 25003023.001A | RAL25R176846 Page 14 of 14 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com 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 Annual Groundwater 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. 25003023.001A | RAL25R176846 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com TABLES Well No.MW-1 MW-2S MW-2D MW-3R MW-4 MW-5S MW-5D MW-5SR MW-5DR MW-6 MW-7 Date Installed 02/07/1990 02/07/1990 02/07/1990 06/05/2012 06/05/2012 02/07/1990 02/07/1990 TOC Elevation (feet)936.39 936.36 932.74 932.55 932.54 931.08 928.50 Total Depth Drilled (feet,bgs)*19 64 20.5 30 60 20.5 26.5 Diameter (inches)2 2 2 2 2 2 2 Screen Interval Depth (feet,bgs) 5-19 54-64 5.5-20.5 10-30 55-60 5.5-20.5 NR Well No.MW-8 MW-9 MW-10 MW-11S MW-11D MW-12S MW-12D MW-13 MW-14 MW-15 MW-16 Date Installed 02/07/1990 02/07/1990 02/07/1990 02/07/1990 02/07/1990 02/07/1990 02/07/1990 NR TOC Elevation (feet)935.24 935.98 937.60 920.46 920.58 929.70 928.98 929.28 Total Depth Drilled (feet,bgs)*26.5 26.5 26.5 26.5 60.5 17 19.5 20 Diameter (inches)2 2 2 2 2 2 2 2 Screen Interval Depth (feet,bgs) 16.5-26.5 NR 16.5-26.5 11.5-26.5 NR NR NR 5-20 Well No.MW-17 MW-17D MW-19 MW-20 MW-21 MW-21D MW-22 MW-23 MW-24 MW-25 MW-26 Date Installed NR 12/01/2014 NR NR NR NR NR NR NR TOC Elevation (feet)934.36 NM 938.66 936.04 935.28 935.37 937.51 935.96 941.05 Total Depth Drilled (feet,bgs)*23.5 59 22.5 22.5 22.5 60 25 22.5 25 Diameter (inches)2 2 2 2 2 2 2 2 2 Screen Interval Depth (feet,bgs) NR 54-59 7.5-22.5 7.5-22.5 7.5-22.5 NR NR 7.5-22.5 10-25 Well No.MW-27 MW-28 MW-33 MW-34 AMW-1 AW-6 AW-7 Date Installed NR NR NR TOC Elevation (feet)935.21 939.87 933.81 Total Depth Drilled (feet,bgs)*25 25 24 Diameter (inches)2 2 2 Screen Interval Depth (feet,bgs) NR NR NR NOTES: 1) bgs = below ground surface. 2) TOC = Top of well casing. 4) NR = No record. De s t r o y e d De s t r o y e d De s t r o y e d De s t r o y e d TABLE 1: WELL CONSTRUCTION DETAILS De s t r o y e d De s t r o y e d De s t r o y e d De s t r o y e d De s t r o y e d De s t r o y e d De s t r o y e d De s t r o y e d De s t r o y e d 3) * = Depth based on field measurement for wells installed prior to 2012. 20224255.001A PAGE 1 OF 1 TABLE 2: GROUNDWATER ELEVATIONS Well No. MW-2S MW-2D MW-4 MW-5SR MW-5DR MW-6 MW-7 MW-8 MW-9 MW-10 MW-11S MW-11D MW-13 MW-14 Date Measured 11/28/23 11/28/23 NM 11/29/23 11/29/23 NM NM NM NM NM NM 11/29/23 NM NM TOC Elevation (feet)936.39 936.36 932.74 932.55 932.54 931.08 928.50 935.24 935.98 936.15 920.46 920.58 929.70 928.98 Screen Depth Interval (feet,bgs) 5-19 54-64 5.5-20.5 10-30 55-60 5.5-20.5 ?-26.5 16.5-26.5 ?-26.5 16.5-26.5 11.5-26.5 ?-60.5 ?-17 ?-19.5 Free Product Thickness (inches) ND ND ND ND ND ND NM NM NM NM NM ND NM NM Depth to Groundwater (feet, btoc) 15.75 16.20 NM 15.33 19.55 NM NM NM NM NM NM 11.70 NM NM *Groundwater Elevation (feet) 920.64 920.16 NM 917.22 912.99 NM NM NM NM NM NM 908.88 NM NM Well No. MW-16 MW-17 MW-17D MW-19 MW-20 MW-21 MW-21D MW-22 MW-23 MW-24 MW-27 MW-28 MW-34 Date Measured NM 11/28/23 11/28/23 NM NM 11/28/23 11/28/23 NM NM NM 11/29/23 NM 11/29/23 TOC Elevation (feet)929.28 934.36 NM 938.66 936.04 935.28 935.37 937.51 935.96 941.05 935.21 939.87 933.81 Screen Depth Interval (feet,bgs) 5-20 ?-23.5 54-59 7.5-22.5 7.5-22.5 7.5-22.5 ?-60 ?-25 7.5-22.5 10-25 ?-25 ?-25 ?-24 Free Product Thickness (inches) NM ND NM ND ND ND ND NM NM NM ND NM NM Depth to Groundwater (feet, btoc) NM 13.85 12.85 NM NM 13.75 14.02 NM NM NM 14.30 NM NM *Groundwater Elevation (feet) NM 920.51 NM NM NM 921.53 921.35 NM NM NM 920.91 NM NM NOTES: 1) bgs = below ground surface 2) TOC = Top of well casing 3) btoc = below top of casing 4) ND = Not detected 5) Elevations referenced to an assumed datam of 1000.00 feet 6) *corrected groundwater elevation to account for free product = [uncorrected groundwater elevation + (free product thickness X density of free product/density of water)] 7) density of diesel is 0.84 g/mL 8) density of water is 1.0 g/mL 9) ? = Screen interval is unknown 10) NM = Not Measured 25003023.001A PAGE 1 OF 1 Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 02/15/96 0.04 10.25 925.86 02/15/96 ND 2.66 905.26 01/06/97 ND 14.15 921.93 01/06/97 ND 3.60 904.32 03/11/97 NM NM NM 03/11/97 ND 2.81 905.11 05/20/97 ND 13.00 923.08 05/20/97 NM NM NM 06/18/02 NM NM NM 06/18/02 ND 10.70 897.22 01/14/04 01/14/04 ND 5.29 902.63 05/24/06 05/24/06 04/25/07 01/06/97 ND 6.07 914.25 02/15/96 ND 10.51 928.31 03/11/97 NM NM NM 01/06/97 0.02 15.93 922.91 05/20/97 NM NM NM 03/11/97 NM NM NM 06/18/02 ND 12.68 907.64 05/20/97 0.01 13.68 925.15 01/14/04 ND 7.66 912.66 06/18/02 05/24/06 01/14/04 02/15/96 ND 2.63 904.43 05/24/06 01/06/97 ND 3.68 903.38 04/25/07 03/11/97 NM NM NM 02/15/96 1.57 6.42 921.45 05/20/97 ND 4.38 902.68 01/06/97 0.48 8.11 918.92 06/18/02 ND 10.73 896.33 03/11/97 NM NM NM 01/14/04 ND 5.99 901.07 05/20/97 0.43 13.68 919.42 05/24/06 06/18/02 0.76 18.32 908.93 01/06/97 ND 12.97 907.39 01/14/04 ND 10.42 916.24 03/11/97 NM NM NM 05/24/06 ND 9.91 916.75 05/20/97 NM NM NM 04/25/07 06/18/02 ND 18.87 901.49 02/15/96 ND 7.57 919.00 01/14/04 ND 13.03 907.33 01/06/97 ND 11.20 915.37 05/24/06 03/11/97 NM NM NM 01/06/97 ND 10.57 913.11 05/20/97 ND 9.94 916.63 03/11/97 NM NM NM 06/18/02 ND 18.20 908.37 05/20/97 NM NM NM 01/14/04 ND 12.43 914.14 06/18/02 05/24/06 ND 15.18 911.39 01/14/04 ND 11.50 912.18 04/25/07 05/24/06 MW-3R 938.82 ?-20.5 INACCESSIBLE DESTROYED MW-15 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA DRY 907.92 ?-20.0 920.32 DESTROYED MW-1 936.08 12-27 MW-12S MW-3 938.82 5.5-20.5 920.36 ?-19.5 DESTROYED MW-25 INACCESSIBLE DESTROYED INACCESSIBLE MW-12D DESTROYED INACCESSIBLE INACCESSIBLE DESTROYED 907.06 ?-41.0 ?-17.2 MW-5S 926.66 2.5-17.5 MW-26 DESTROYED DESTROYED MW-5D 926.57 ?-56.5 DESTROYED 923.68 ?-14.8 25003023.001A PAGE 1 OF 11 Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 02/15/96 ND 11.40 924.99 02/15/96 ND 11.91 924.45 02/15/96 ND 12.25 920.49 01/06/97 ND 14.60 921.79 01/06/97 ND 14.88 921.48 01/06/97 ND 16.63 916.11 03/11/97 NM NM NM 03/11/97 NM NM NM 03/11/97 NM NM NM 05/20/97 NM NM NM 05/20/97 ND 12.42 923.94 05/20/97 NM NM NM 06/18/02 06/18/02 ND 21.68 914.68 06/18/02 01/14/04 ND 14.13 922.26 01/14/04 ND 14.71 921.65 01/14/04 ND 17.00 915.74 05/24/06 ND 18.43 917.96 05/24/06 ND 18.88 917.48 05/24/06 ND 19.89 912.85 04/25/07 ND 13.19 923.20 04/25/07 ND 13.33 923.03 04/25/07 ND 15.20 917.54 07/26/07 ND 17.55 918.84 07/26/07 ND 18.24 918.12 07/26/07 ND 18.60 914.14 10/23/07 10/23/07 ND 21.42 914.94 10/23/07 ND 21.46 911.28 03/19/08 ND 16.62 919.77 03/19/08 ND 16.91 919.45 03/19/08 ND 17.64 915.10 09/23/08 ND 15.75 920.64 09/23/08 ND 15.86 920.50 09/23/08 ND 17.38 915.36 03/25/09 ND 14.05 922.34 03/25/09 ND 14.45 921.91 03/25/09 ND 15.67 917.07 12/20-21/11 ND 14.23 922.16 12/20-21/11 ND 14.59 921.77 12/20-21/11 ND 15.67 917.07 06/05-06/12 ND 15.81 920.58 06/05-06/12 ND 13.25 923.11 06/05-06/12 ND 16.68 916.06 12/17/12 12/17/12 ND 19.08 917.28 12/19/12 ND 19.35 913.39 05/15/13 ND 14.11 922.28 05/13/13 ND 14.20 922.16 05/16/13 ND 15.54 917.20 12/10/13 ND 15.88 920.51 12/10/13 ND 16.05 920.31 12/10/13 ND 16.90 915.84 05/12/14 ND 13.09 923.30 05/12/14 ND 13.20 923.16 05/15/14 ND 14.64 918.10 12/15/14 ND 17.19 919.20 12/15/14 ND 17.61 918.75 12/14/14 ND 17.97 914.77 06/10/15 ND 16.16 920.23 06/09/15 ND 16.50 919.86 06/10/15 ND 17.08 915.66 12/07/15 ND 12.87 923.52 12/07/15 ND 13.40 922.96 12/09/15 ND 14.83 917.91 06/28/16 ND 14.01 922.38 06/28/16 ND 13.05 923.31 06/29/16 ND 15.51 917.23 12/13/16 ND 18.05 918.34 12/13/16 ND 18.69 917.67 12/12/16 ND 19.31 913.43 06/07/17 ND 13.53 922.86 06/07/17 ND 13.71 922.65 06/07/17 ND 14.94 917.80 12/12/17 12/12/17 ND 19.70 916.66 12/12/17 ND 19.77 912.97 05/15/18 ND 14.50 921.89 05/15/18 ND 14.80 921.56 05/15/18 ND 15.90 916.84 11/27/18 ND 11.82 924.57 11/27/18 ND 12.34 924.02 11/28/18 ND 13.79 918.95 05/21/19 ND 13.12 923.27 05/21/19 ND 14.52 921.84 05/21/19 ND 10.25 922.49 11/25/19 ND 15.24 921.15 11/25/19 ND 15.38 920.98 11/26/19 ND 16.45 916.29 06/01/20 ND 11.19 925.20 06/01/20 ND 11.35 925.01 06/01/20 NM NM NM 12/22/20 ND 12.33 924.06 12/22/20 ND 12.35 924.01 12/21/20 NM NM NM 01/11/22 ND 16.85 919.54 01/11/22 ND 16.45 919.91 02/15/23 ND 13.16 923.23 02/15/23 ND 13.30 923.06 11/28/23 ND 17.04 919.35 11/28/23 ND 17.79 918.57 12/17/24 ND 15.75 920.64 12/17/24 ND 16.20 920.16 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA, cont. MW-2S DRY MW-4 5-19936.39 MW-2D DRY DRY DRY DRY 54-64936.36 5.5-20.5932.74 25003023.001A PAGE 2 OF 11 Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 06/05-06/12 ND 16.90 915.65 02/15/96 ND 5.92 925.16 02/15/96 ND 7.78 920.72 12/17/12 ND 20.22 912.33 01/06/97 ND 9.00 922.08 01/06/97 ND 10.24 918.26 05/13/13 ND 14.78 917.77 03/11/97 NM NM NM 03/11/97 NM NM NM 12/10/13 ND 16.49 916.06 05/20/97 NM NM NM 05/20/97 NM NM NM 05/12/14 ND 15.33 917.22 06/18/02 ND 16.56 914.52 06/18/02 ND 17.48 911.02 12/14/14 ND 18.73 913.82 01/14/04 ND 10.78 920.30 01/14/04 ND 11.44 917.06 06/09/15 ND 18.31 914.24 05/24/06 ND 14.35 916.73 05/24/06 ND 15.73 912.77 12/07/15 ND 14.00 918.55 04/25/07 ND 10.82 920.26 04/25/07 ND 12.56 915.94 06/27/16 ND 16.75 915.8 07/26/07 ND 13.72 917.36 07/26/07 ND 15.94 912.56 12/12/16 ND 20.62 911.93 10/23/07 ND 16.51 914.57 10/23/07 ND 18.41 910.09 06/07/17 ND 14.56 917.99 03/19/08 ND 13.20 917.88 03/19/08 ND 14.61 913.89 12/12/17 ND 21.36 911.19 09/23/08 ND 12.35 918.73 09/23/08 ND 14.56 913.94 05/15/18 ND 15.41 917.14 03/25/09 ND 11.03 920.05 03/25/09 ND 13.72 914.78 11/27/18 ND 11.53 921.02 12/20-21/11 ND 9.97 921.11 12/20-21/11 ND 11.71 916.79 05/21/19 ND 13.45 919.10 06/05-06/12 ND 11.14 919.94 06/05-06/12 ND 13.18 915.32 11/25/19 ND 14.15 918.40 12/19/12 ND 13.92 917.16 12/19/12 ND 15.55 912.95 06/01/20 ND 11.11 921.44 05/16/13 ND 9.68 921.40 05/16/13 ND 11.36 917.14 12/21/20 ND 11.33 921.22 12/11/13 ND 11.61 919.47 12/11/13 ND 12.55 915.95 01/11/22 ND 14.54 918.00 05/15/14 ND 8.80 922.28 05/13/14 ND 10.94 917.56 02/14/23 ND 11.62 920.93 12/14/14 ND 13.52 917.56 12/14/14 ND 15.02 913.48 11/29/23 ND 19.51 913.04 06/09/15 ND 12.92 918.16 06/09/15 ND 13.69 914.81 12/18/24 ND 15.33 917.22 12/09/15 ND 10.60 920.48 12/07/15 ND 11.14 917.36 06/05-06/12 ND 21.63 910.91 06/28/16 ND 9.93 921.15 06/27/16 ND 12.12 916.38 12/17/12 ND 17.93 914.61 12/12/16 ND 14.20 916.88 12/12/16 ND 18.26 910.24 05/13/13 ND 19.48 913.06 06/07/17 ND 9.80 921.28 06/07/17 ND 11.96 916.54 12/10/13 ND 17.49 915.05 12/12/17 ND 15.10 915.98 12/12/17 NM NM NM 05/12/14 ND 21.12 911.42 05/15/18 ND 10.40 920.68 05/15/18 NM NM NM 12/14/14 ND 21.05 911.49 11/28/18 ND 7.00 924.08 11/27/18 NM NM NM 06/09/15 ND 17.27 915.27 05/21/19 ND 8.42 922.66 05/21/19 NM NM NM 12/07/15 ND 19.2 913.34 11/26/19 ND 10.80 920.28 11/25/19 NM NM NM 06/27/16 ND 23.73 908.81 06/01/20 NM NM NM 06/01/20 NM NM NM 12/12/16 ND 17.85 914.69 12/21/20 NM NM NM 12/21/20 NM NM NM 06/07/17 ND 22.96 909.58 12/12/17 ND 19.94 912.60 05/15/18 ND 16.36 916.18 11/27/18 ND 17.6 914.94 05/21/19 ND 18.98 913.56 11/25/19 ND 15.61 916.93 06/01/20 ND 15.61 916.93 12/21/20 ND 16.32 916.22 01/11/22 ND 19.38 913.16 02/14/23 ND 16.49 916.05 11/29/23 ND 21.67 910.87 12/18/24 ND 19.55 912.99 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA, cont. MW-5DR 932.54 55-60 ?-26.5928.50MW-75.5-20.5931.08MW-6 MW-5SR 932.55 10-30 25003023.001A PAGE 3 OF 11 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA, cont. Well No.Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 02/15/96 ND 10.73 924.51 02/15/96 ND 11.53 925.79 01/06/97 NM NM NM 01/06/97 ND 15.04 922.28 03/11/97 NM NM NM 03/11/97 NM NM NM 05/20/97 NM NM NM 05/20/97 NM NM NM 06/18/02 ND 21.01 914.23 06/18/02 ND 21.28 916.04 01/14/04 ND 13.97 921.27 01/14/04 ND 15.58 921.74 05/24/06 ND 18.14 917.10 05/24/06 04/25/07 ND 12.61 922.63 04/25/07 ND 15.15 922.17 07/26/07 ND 17.40 917.84 07/26/07 ND 17.54 919.78 10/23/07 ND 20.48 914.76 10/23/07 ND 20.27 917.05 03/19/08 ND 15.52 919.72 03/19/08 ND 18.09 919.23 09/23/08 ND 14.90 920.34 09/23/08 ND 16.95 920.37 03/25/09 ND 13.53 921.71 03/25/09 ND 15.41 921.91 12/20-21/11 ND 11.42 923.82 12/20-21/11 ND 13.26 922.72 06/05-06/12 ND 13.97 921.27 06/05-06/12 ND 14.33 921.65 12/19/12 ND 16.54 918.70 12/19/12 ND 16.78 919.20 05/15/13 ND 11.71 923.53 05/14/13 ND 13.26 922.72 12/10/13 ND 12.93 922.31 12/09/13 ND 14.50 921.48 05/13/14 ND 9.50 925.74 05/14/14 ND 11.68 924.30 12/14/14 ND 18.30 916.94 12/14/14 ND 16.28 919.70 06/09/15 ND 13.85 921.39 06/09/15 ND 14.79 921.19 12/07/15 ND 10.62 924.62 12/08/15 ND 12.34 923.64 06/28/16 ND 11.83 923.41 06/28/16 ND 11.89 924.09 12/12/16 ND 17.35 917.89 12/12/16 ND NM NM 06/07/17 ND 11.81 923.43 06/07/17 ND 15.60 920.38 12/12/17 NM NM NM 12/12/17 NM NM NM 05/15/18 NM NM NM 05/15/18 NM NM NM 11/27/18 NM NM NM 11/27/18 NM NM NM 05/21/19 NM NM NM 05/21/19 NM NM NM 11/25/19 NM NM NM 11/25/19 NM NM NM 06/01/20 NM NM NM 06/01/20 NM NM NM 12/21/20 NM NM NM 12/21/20 NM NM NM INACCESSIBLE937.32 935.98* ?-26.5MW-9MW-8 935.24 16.5-26.5 25003023.001A PAGE 4 OF 11 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA, cont. Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 02/15/96 ND 11.70 925.90 02/15/96 ND 7.84 912.62 01/06/97 ND 14.53 923.07 01/06/97 ND 11.97 908.49 03/11/97 NM NM NM 03/11/97 ND 8.72 911.74 05/20/97 NM NM NM 05/20/97 NM NM NM 06/18/02 ND 21.10 916.50 06/18/02 ND 15.74 904.72 01/14/04 ND 14.85 922.75 01/14/04 ND 11.13 909.33 05/24/06 05/24/06 ND 11.98 908.48 04/25/07 ND 14.50 923.10 04/25/07 ND 9.28 911.18 07/26/07 ND 17.83 919.77 07/26/07 ND 13.74 906.72 10/23/07 ND 20.59 917.01 10/23/07 ND 16.37 904.09 03/19/08 ND 17.28 920.32 03/19/08 ND 10.04 910.42 09/23/08 ND 16.26 921.34 09/23/08 ND 11.30 909.16 03/25/09 ND 14.90 922.70 03/25/09 ND 9.01 911.45 12/20-21/11 ND 14.39 923.21 12/20-21/11 ND 9.49 910.97 06/05-06/12 ND 15.82 920.33 06/05-06/12 ND 11.27 909.19 12/19/12 ND 18.35 917.80 12/18/12 ND 13.11 907.35 05/14/13 ND 13.94 922.21 05/13/13 ND 9.34 911.12 12/09/13 ND 16.02 920.13 12/10/13 ND 10.80 909.66 05/14/14 ND 13.47 922.68 05/12/14 ND 10.06 910.40 12/14/14 ND 17.80 918.35 12/15/14 ND 12.17 908.29 06/10/15 ND 16.45 919.70 06/09/15 ND 12.29 908.17 12/08/15 ND 13.36 922.79 12/07/15 ND 13.40 907.06 06/28/16 ND 14.78 921.37 06/29/16 ND 13.20 907.26 12/13/16 ND 18.45 917.70 12/13/16 ND 13.06 907.40 06/08/17 ND 15.21 920.94 06/08/17 ND 10.59 909.87 12/12/17 NM NM NM 12/12/17 NM NM NM 05/15/18 NM NM NM 05/15/18 NM NM NM 11/27/18 NM NM NM 11/27/18 NM NM NM 05/21/19 NM NM NM 05/21/19 NM NM NM 11/25/19 NM NM NM 11/25/19 NM NM NM 06/01/20 NM NM NM 06/01/20 NM NM NM 12/21/20 NM NM NM 12/21/20 NM NM NM 920.46 11.5-26.5 937.60 INACCESSIBLE MW-11SMW-10 936.15* 16.5-26.5 25003023.001A PAGE 5 OF 11 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA, cont. Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 02/15/96 ND 9.25 911.33 01/06/97 0.39 11.53 918.47 01/06/97 ND 13.75 915.23 01/06/97 ND 11.33 909.25 03/11/97 NM NM NM 03/11/97 NM NM NM 03/11/97 NM NM NM 05/20/97 0.12 9.66 920.13 05/20/97 ND 11.85 917.13 05/20/97 ND 10.96 909.62 06/18/02 0.03 16.63 913.09 06/18/02 06/18/02 ND 16.85 903.73 01/14/04 ND 12.42 917.28 01/14/04 ND 15.92 913.06 01/14/04 ND 12.15 908.43 05/24/06 ND 15.54 914.16 05/24/06 ND 18.36 910.62 05/24/06 ND 14.12 906.46 04/25/07 ND 11.47 918.23 04/25/07 ND 11.07 917.91 04/25/07 ND 10.39 910.19 07/26/07 ND 14.76 914.94 07/26/07 ND 13.39 915.59 07/26/07 ND 14.81 905.77 10/23/07 10/23/07 ND 17.19 911.79 10/23/07 ND 17.40 903.18 03/19/08 ND 13.40 916.30 03/19/08 ND 12.72 916.26 03/19/08 ND 11.06 909.52 09/23/08 ND 12.59 917.11 09/23/08 ND 11.45 917.53 09/23/08 ND 12.30 908.28 03/25/09 ND 11.06 918.64 03/25/09 ND 10.50 918.48 03/25/09 ND 10.02 910.56 12/20-21/11 ND 10.86 918.84 12/20-21/11 ND 10.58 918.40 12/20-21/11 ND 10.37 910.21 06/05-06/12 ND 12.00 917.70 06/05-06/12 ND 12.11 916.87 06/05-06/12 ND 12.17 908.41 12/19/12 ND 14.34 915.36 12/19/12 ND 15.75 913.23 12/18/12 ND 13.94 906.64 05/15/13 ND 10.37 919.33 05/16/13 ND 11.15 917.83 05/13/13 ND 10.22 910.36 12/10/13 ND 12.36 917.34 12/10/13 ND 11.82 917.16 12/10/13 ND 11.65 908.93 05/15/14 ND 10.02 919.68 05/15/14 ND 11.40 917.58 05/12/14 ND 10.89 909.69 12/14/14 ND 14.11 915.59 12/14/14 ND 13.21 915.77 12/15/14 ND 12.98 907.60 06/09/15 ND 13.10 916.60 06/09/15 ND 14.32 914.66 06/09/15 ND 13.10 907.48 12/08/15 ND 9.90 919.80 12/07/15 ND 10.4 918.58 12/07/15 ND 9.85 910.73 06/27/16 ND 11.28 918.42 06/27/16 ND 12.62 916.36 06/29/16 ND 12.44 908.14 12/13/16 ND 15.40 914.30 12/12/16 ND 15.40 913.58 12/13/16 ND 14.62 905.96 06/08/17 ND 9.33 920.37 06/08/17 ND 11.77 917.21 06/08/17 ND 11.02 909.56 12/12/17 NM NM NM 12/12/17 NM NM NM 12/12/17 ND 14.99 905.59 05/15/18 NM NM NM 05/15/18 NM NM NM 05/15/18 ND 11.85 908.73 11/27/18 NM NM NM 11/27/18 NM NM NM 11/27/18 ND 9.56 911.02 05/21/19 NM NM NM 05/21/19 NM NM NM 05/23/19 ND 11.5 909.08 11/25/19 NM NM NM 11/25/19 NM NM NM 11/25/19 ND 11.63 908.95 06/01/20 NM NM NM 06/01/20 NM NM NM 06/02/20 ND 9.90 910.68 12/21/20 NM NM NM 12/21/20 NM NM NM 12/22/20 ND 9.00 911.58 01/12/22 ND 10.89 909.69 02/15/23 ND 9.60 910.98 11/29/23 ND 13.72 906.86 12/18/24 ND 11.70 908.88 929.70 ?-17 MW-14 928.98 ?-19.5 D R Y D R Y MW-13 ?-60.5920.58MW-11D 25003023.001A PAGE 6 OF 11 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA, cont. Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 01/06/97 ND 12.86 916.42 01/06/97 ND 11.67 922.69 12/15/14 NM ND 16.59 NM 03/11/97 NM NM NM 03/11/97 NM NM NM 06/09/15 NM ND 15.82 NM 05/20/97 ND 11.83 917.45 05/20/97 NM NM NM 12/07/15 NM ND 12.18 NM 06/18/02 06/18/02 0.87 19.67 915.36 06/28/16 NM ND 13.02 NM 01/14/04 ND 14.48 914.80 01/14/04 ND 13.08 921.28 12/12/16 NM ND 17.31 NM 05/24/06 ND 18.46 910.82 05/24/06 ND 16.73 917.63 06/07/17 NM ND 12.87 NM 04/25/07 ND 15.37 913.91 04/25/07 ND 12.96 921.40 12/12/17 NM NM NM NM 07/26/07 ND 18.80 910.48 07/26/07 ND 15.98 918.38 05/15/18 NM NM NM NM 10/23/07 10/23/07 ND 18.93 915.43 11/27/18 NM NM NM NM 03/19/08 ND 16.93 912.35 03/19/08 ND 15.83 918.53 05/21/19 NM NM NM NM 09/23/08 ND 16.68 912.60 09/23/08 ND 16.95 917.41 11/25/19 NM NM NM NM 03/15/09 ND 15.05 914.23 03/25/09 ND 13.67 920.69 06/01/20 NM NM NM NM 12/20-21/11 ND 13.52 915.76 12/20-21/11 ND 12.25 922.11 12/21/20 NM NM NM NM 06/05-06/12 ND 15.78 913.50 06/05-06/12 ND 13.65 920.71 02/09/22 NM NM NM NM 12/19/12 ND 19.35 909.93 12/18/12 ND 16.14 918.22 02/14/23 NM ND 11.70 NM 05/16/13 ND 13.82 915.46 05/15/13 ND 12.18 922.18 11/28/23 NM ND 15.39 NM 12/10/13 ND 13.37 915.91 12/09/13 ND 14.10 920.26 12/17/24 NM ND 12.85 NM 05/15/14 ND 13.57 915.71 05/14/14 ND 11.27 923.09 12/14/14 ND 17.54 911.74 12/14/14 ND 16.10 918.26 06/09/15 ND 13.61 915.67 06/09/15 ND 14.36 920.00 12/07/15 ND 12.48 916.80 12/08/15 ND 11.80 922.56 06/29/16 ND 16.1 913.18 06/28/16 ND 12.25 922.11 12/12/16 ND 18.90 910.38 12/12/16 ND 16.80 917.56 06/07/17 ND 14.00 915.28 06/07/17 ND 12.39 921.97 12/12/17 NM NM NM 12/12/17 ND 17.52 916.84 05/15/18 NM NM NM 05/15/18 ND 12.95 921.41 11/27/18 NM NM NM 11/28/18 ND 10.18 924.18 05/21/19 NM NM NM 05/22/19 ND 11.00 923.36 11/25/19 NM NM NM 11/26/19 ND 13.21 921.15 06/01/20 NM NM NM 06/02/20 ND 8.42 925.94 12/21/20 NM NM NM 12/21/20 ND 9.78 924.58 11/28/23 ND 15.71 918.65 12/17/24 ND 13.85 920.51 934.36 D R Y ?-23.5 MW-17D 54-59 MW-16 929.28 5-20 MW-17 DRY 25003023.001A PAGE 7 OF 11 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA, cont. Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 01/06/97 ND 17.18 921.48 01/06/97 0.01 13.30 922.75 03/11/97 NM NM NM 03/11/97 NM NM NM 05/20/97 ND 14.93 923.73 05/20/97 ND 11.25 924.79 06/18/02 ND 16.01 922.65 06/18/02 1.77 21.22 916.18 01/14/04 ND 13.73 924.93 01/1/4/04 ND 14.30 921.74 05/24/06 ND 18.26 920.40 05/24/06 ND 18.05 917.99 04/25/07 ND 12.65 926.01 04/25/07 ND 13.60 922.44 07/26/07 ND 15.15 923.51 07/26/07 ND 15.89 920.15 10/23/07 ND 18.01 920.65 10/23/07 ND 18.96 917.08 03/19/08 ND 16.08 922.58 03/19/08 ND 16.70 919.34 09/23/08 ND 14.92 923.74 09/23/08 ND 15.61 920.43 03/25/09 ND 13.18 925.48 03/25/09 ND 14.04 922.00 12/20-21/11 ND 12.81 925.85 12/20-21/11 ND 13.57 922.47 06/05-06/12 ND 13.38 925.28 06/05-06/12 ND 14.23 921.81 12/19/12 ND 15.97 922.69 12/19/12 ND 17.68 918.36 05/14/13 ND 12.50 926.16 05/14/13 ND 13.24 922.80 12/09/13 ND 13.94 924.72 12/09/13 ND 14.91 921.13 05/13/14 ND 10.87 927.79 05/13/14 ND 11.69 924.35 12/14/14 ND 15.19 923.47 12/14/14 ND 16.12 919.92 06/10/15 ND 13.74 924.92 06/09/15 ND 14.59 921.45 12/08/15 ND 11.40 927.26 12/08/15 ND 12.35 923.69 06/28/16 ND 11.4 927.26 06/28/16 ND 12.27 923.77 12/12/16 ND 16.10 922.56 12/12/16 ND 18.70 917.34 06/08/17 ND 12.51 926.15 06/08/17 ND 13.11 922.36 12/12/17 ND 17.60 921.06 12/12/17 ND 17.60 918.44 05/15/18 ND 13.10 925.56 05/15/18 ND 13.69 922.35 11/28/18 ND 9.82 928.84 11/28/18 ND 10.45 925.59 05/22/19 ND 10.50 928.16 05/22/19 ND 10.95 925.09 11/26/19 ND 12.92 925.74 11/26/19 ND 13.36 922.68 06/01/20 NM NM NM 06/01/20 NM NM NM 12/21/20 NM NM NM 12/21/20 NM NM NM 936.04 7.5-22.57.5-22.5 MW-20MW-19 938.66 25003023.001A PAGE 8 OF 11 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA, cont. Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 01/06/97 ND 14.00 921.28 03/25/09 ND 14.30 921.07 03/11/97 NM NM NM 12/20-21/11 ND 14.99 920.38 05/20/97 ND 11.92 923.36 06/05-06/12 ND 13.94 921.43 06/18/02 2.64 21.26 916.05 12/17/12 ND 15.42 919.95 01/14/04 ND 13.65 921.63 05/13/13 ND 12.87 922.50 05/24/06 ND 17.46 917.82 12/10/13 ND 15.38 919.99 04/25/07 ND 12.95 922.33 05/12/14 ND 11.32 924.05 07/26/07 ND 15.11 920.17 12/14/14 ND 15.75 919.62 10/23/07 ND 18.31 916.97 06/10/15 ND 14.34 921.03 03/19/08 ND 16.01 919.27 12/08/15 ND 12.37 923.00 09/23/08 ND 14.78 920.50 06/28/16 ND 12.13 923.24 03/25/09 ND 13.32 921.96 12/13/16 ND 16.58 918.79 12/20-21/11 ND 12.84 922.44 06/08/17 ND 12.89 922.48 06/05-06/12 ND 13.11 922.17 12/12/17 ND 17.25 918.12 12/17/12 ND 15.95 919.33 05/15/18 ND 13.26 922.11 05/14/13 ND 12.57 922.71 11/27/18 ND 10.73 924.64 12/09/13 ND 14.25 921.03 05/21/19 ND 10.60 924.77 05/13/14 ND 11.01 924.27 11/25/19 ND 13.00 922.37 12/14/14 ND 15.44 919.84 06/01/20 ND 9.33 926.04 06/10/15 ND 14.01 921.27 12/21/20 ND 10.12 925.25 12/08/15 ND 11.85 923.43 02/09/22 ND 13.40 921.97 06/28/16 ND 11.70 923.58 02/14/23 ND 11.44 923.93 12/13/16 ND 16.25 919.03 11/28/23 ND 15.44 919.93 06/08/17 ND 12.48 922.80 12/17/24 ND 14.02 921.35 12/12/17 ND 16.80 918.48 05/15/18 ND 12.93 922.35 11/27/18 ND 9.65 925.63 05/21/19 ND 10.10 925.18 11/25/19 ND 12.68 922.60 06/01/20 ND 9.08 926.20 12/21/20 ND 9.39 925.89 01/11/22 ND 14.20 921.08 02/14/23 ND 11.15 924.13 11/28/23 ND 15.10 920.18 12/17/24 ND 13.75 921.53 ?-60 7.5-22.5935.28MW-21 MW-21D 935.37 25003023.001A PAGE 9 OF 11 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA, cont. Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 01/06/97 ND 17.53 919.98 01/06/97 ND 16.69 921.34 01/06/97 ND 19.33 921.72 03/11/97 NM NM NM 03/11/97 NM NM NM 03/11/97 NM NM NM 05/20/97 NM NM NM 05/20/97 NM NM NM 05/20/97 NM NM NM 06/18/02 06/18/02 ND 22.54 915.49 06/18/02 01/14/04 ND 17.35 920.16 01/14/04 ND 16.21 921.82 01/14/04 ND 19.00 922.05 05/24/06 ND 20.98 916.53 05/24/06 ND 20.20 917.83 05/24/06 ND 22.73 918.32 04/25/07 ND 15.62 921.89 04/25/07 ND 14.79 923.24 04/25/07 ND 17.77 923.28 07/26/07 ND 20.79 916.72 07/26/07 ND 17.95 920.08 07/26/07 ND 20.36 920.69 10/23/07 ND 23.43 914.08 10/23/07 ND 21.39 916.64 10/23/07 ND 23.25 917.80 03/19/08 ND 18.81 918.70 03/19/08 ND 17.86 920.17 03/19/08 ND 21.09 919.96 09/23/08 ND 17.96 919.55 09/23/08 ND 16.82 921.21 09/23/08 ND 20.00 921.05 03/25/09 ND 16.42 921.09 03/25/09 ND 15.31 922.72 03/25/09 ND 18.30 922.75 12/20-21/11 ND 14.90 922.61 12/20-21/11 ND 11.73 926.30 12/20-21/11 ND 18.22 922.83 06/05-06/12 ND 17.16 920.35 06/05-06/12 ND 12.83 923.13 06/05-06/12 ND 19.02 922.03 12/18/12 ND 19.87 917.64 12/19/12 ND 16.11 919.85 12/18/12 ND 24.80 916.25 05/14/13 ND 14.54 922.97 05/15/13 ND 11.45 924.51 05/14/13 ND 17.68 923.37 12/09/13 ND 16.63 920.88 12/09/13 ND 13.23 922.73 12/09/13 ND 19.55 921.50 05/13/14 ND 13.23 924.28 05/13/14 ND 9.94 926.02 05/14/14 ND 16.39 924.66 12/14/14 ND 18.30 919.21 12/14/14 ND 14.60 921.36 12/14/14 ND 20.81 920.24 06/09/15 ND 17.22 920.29 06/10/15 ND NM ---06/09/15 ND 19.31 921.74 12/08/15 ND 13.84 923.67 12/09/15 ND NM ---12/08/15 ND 16.83 924.22 06/28/16 ND 13.54 923.53 06/28/16 ND 11.35 924.61 06/29/16 ND 16.51 924.54 12/12/16 ND 19.91 917.60 12/12/16 ND 16.00 919.96 12/13/16 ND 21.55 919.50 06/07/17 ND 11.86 925.65 06/08/17 ND 11.26 924.7 06/08/17 ND 19.56 921.49 12/12/17 NM NM NM 12/12/17 NM NM NM 12/12/17 NM NM NM 05/15/18 NM NM NM 05/15/18 NM NM NM 05/15/18 NM NM NM 11/27/18 NM NM NM 11/27/18 NM NM NM 11/27/18 NM NM NM 05/21/19 NM NM NM 05/21/19 NM NM NM 05/21/19 NM NM NM 11/25/19 NM NM NM 11/25/19 NM NM NM 11/25/19 NM NM NM 06/01/20 NM NM NM 06/01/20 NM NM NM 06/01/20 NM NM NM 12/21/20 NM NM NM 12/21/20 NM NM NM 12/21/20 NM NM NM 7.5-22.5 MW-24 941.05 DRY 938.03 MW-23 935.96* 10-25MW-22 937.51 ?-25 DRY 25003023.001A PAGE 10 OF 11 TABLE 3: HISTORICAL GROUNDWATER ELEVATION DATA, cont. Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) Well No. Date Measured TOC Elevation (feet) Screen Depth Interval (feet,bgs) Free Product Thickness (inches) Depth to Groundwater (feet, btoc) †Groundwater Elevation (feet) 06/18/02 ND 20.12 915.09 06/18/02 ND 23.82 916.05 01/06/97 ND 15.01 918.80 01/14/04 ND 14.02 921.19 01/14/04 ND 17.68 922.19 03/11/97 NM NM NM 05/24/06 ND 17.92 917.29 05/24/06 ND 21.78 918.09 05/20/97 NM NM NM 04/25/07 ND 12.92 922.29 04/25/07 ND 15.82 924.05 06/18/02 ND 22.21 911.60 07/26/07 ND 15.35 919.86 07/26/07 ND 19.51 920.36 01/14/04 ND 14.63 919.18 10/23/07 ND 18.46 916.75 10/23/07 ND 22.64 917.23 05/24/06 ND 19.40 914.41 03/19/08 ND 15.77 919.44 03/19/08 ND 19.20 920.67 04/25/07 ND 13.42 920.39 09/23/08 ND 14.59 920.62 09/23/08 ND 18.13 921.74 07/26/07 ND 19.27 914.54 03/25/09 ND 13.00 922.21 03/25/09 ND 16.22 923.65 10/23/07 ND 22.39 911.42 12/20-21/11 ND 12.75 922.46 12/20-21/12 ND 15.97 923.90 03/19/08 ND 17.28 916.53 06/05-06/12 ND 13.12 922.09 06/05-06/12 ND 16.98 922.89 09/23/08 ND 16.38 917.43 12/19/12 ND 16.12 919.09 12/19/12 ND 19.95 919.92 03/25/09 ND 14.35 919.46 05/15/13 ND 12.32 922.89 05/15/13 ND 15.37 924.50 12/20-21/11 ND 13.03 920.78 12/10/13 ND 13.54 921.67 12/09/13 ND 17.12 922.75 06/05-06/12 ND 15.30 918.51 05/15/14 ND 10.94 924.27 05/14/14 ND 14.26 925.61 12/18/12 ND 18.15 915.66 12/14/14 ND 14.93 920.28 12/14/14 ND 18.85 921.02 05/15/13 ND 12.77 921.04 06/10/15 ND 13.74 921.47 06/09/15 ND 17.29 922.58 12/11/13 ND 14.25 919.56 12/08/15 ND 11.78 923.43 12/08/15 ND 14.58 925.29 05/14/14 ND 11.89 921.92 06/29/16 ND 11.84 923.37 06/29/16 ND 13.54 926.33 12/15/14 ND 16.84 916.97 12/12/16 ND 16.23 918.98 12/13/16 ND 20.10 919.77 06/10/15 ND 15.63 918.18 06/07/17 ND 12.24 922.97 06/08/17 ND 15.18 924.69 12/09/15 ND 12.42 921.39 12/12/17 ND 16.97 918.24 12/12/17 NM NM NM 06/29/16 ND 12.75 921.06 05/15/18 ND 12.88 922.33 05/15/18 NM NM NM 12/13/16 ND 17.70 916.11 11/27/18 ND 10.41 924.80 11/27/18 NM NM NM 06/08/17 ND 11.69 922.12 05/22/19 ND 11.05 924.16 05/21/19 NM NM NM 12/12/17 NM NM NM 11/26/19 ND 13.37 921.84 11/25/19 NM NM NM 05/15/18 NM NM NM 06/02/20 ND 9.64 925.57 06/01/20 NM NM NM 11/27/18 NM NM NM 12/22/20 ND 10.58 924.63 12/22/20 NM NM NM 05/21/19 NM NM NM 01/12/22 ND 11.80 923.41 11/25/19 NM NM NM 02/15/23 ND 11.53 923.68 06/02/20 ND 9.25 924.56 11/29/23 ND 15.60 919.61 12/22/20 ND 10.24 923.57 12/18/24 ND 14.30 920.91 01/12/22 ND 14.58 919.23 NOTES:02/15/23 ND 10.98 922.83 1) bgs = below ground surface 11/29/23 NM NM NM 2) TOC = Top of well casing 3) btoc = below top of casing 4) ND = Not detected 5) * = TOC resurveyed 6) NM = Not Measured 7) ? = Screen interval is unknown 8) † = Corrected for free product thickness MW-27 935.21 ?-25 MW-34 933.81 ?-24 MW-28 939.87 ?-25 25003023.001A PAGE 11 OF 11 TABLE 4: FIELD NATURAL ATTENUATION DATA Well No.MW-2S MW-2D MW-4 MW-5SR MW-5DR MW-6 MW-7 MW-8 MW-9 MW-10 MW-11S MW-11D Date Measured 12/17/24 12/17/24 NM 12/18/24 12/18/24 NM NM NM NM NM NM 12/18/24 SP. COND. (µS/cm)312 116.0 NM 258 394 NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 1.04 0.84 NM 0.75 6.35 NM NM NM NM NM NM NM Water Temperature (degrees Celsius)18.35 18.14 NM 18.24 18.24 NM NM NM NM NM NM NM ORP (mV)-81.0 8.0 NM -71.0 -8.0 NM NM NM NM NM NM NM *pH 5.89 5.58 NM 6.09 6.29 NM NM NM NM NM NM NM Well No.MW-13 MW-14 MW-16 MW-17 MW-17D MW-19 MW-20 MW-21 MW-21D MW-22 MW-23 MW-24 MW-27 MW-28 MW-34 Date Measured NM NM NM 12/17/24 12/17/24 NM NM 12/17/24 12/17/24 NM NM NM 12/18/24 NM NM SP. COND. (µS/cm)NM NM NM 301 140 NM NM 201 380 NM NM NM 127 NM NM Dissolved Oxygen Content (mg/L) NM NM NM 0.74 6.41 NM NM 0.56 0.55 NM NM NM 1.05 NM NM Water Temperature (degrees Celsius)NM NM NM 21.17 19.64 NM NM 18.87 18.80 NM NM NM 37.47 NM NM ORP (mV)NM NM NM -56.0 100.0 NM NM 20.0 -30.0 NM NM NM -72.0 NM NM *pH NM NM NM 6.25 6.22 NM NM 5.50 5.78 NM NM NM 6.10 NM NM NOTES: 1) * unitless. 2) mV = millivolts. 3) mg/L = milligrams per liter.4) µS/cm = microsiemens per centimeter. 5) NM = Not Measured. 6) ORP = oxidation reduction potentional. 25003023.001A PAGE 1 OF 1 Well No. Date Measured 12/17/12 05/15/13 12/10/13 05/12/14 12/15/14 06/10/15 12/07/15 06/28/16 12/13/16 06/07/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/22/20 1/11/22 02/15/23 11/28/23 12/17/24 GW Elevation DRY 922.28 920.51 923.30 919.20 920.23 923.52 922.38 918.34 922.86 DRY 921.89 924.57 923.27 921.15 925.20 924.06 919.54 923.23 919.36 920.64 *pH DRY 6.25 6.57 6.51 NM 6.54 5.97 6.64 NM 6.54 DRY 6.41 6.65 6.51 6.59 5.77 6.07 6.27 6.54 6.3 5.89 Water Temperature (degrees Celsius) DRY 16.86 16.2 16.33 NM 16.30 18.09 17.12 NM 17.2 DRY 17.2 18.6 17.4 18.5 17.28 16.6 16.92 17.92 17.49 18.35 SP. COND. (µS/cm)DRY 379 383 395 NM 439.7 350 407 NM 442 DRY 509 439.9 1.1 0.489 360 0.9 283 295 348 312 Dissolved Oxygen Content (mg/L) DRY 0.14 0.22 0.22 NM 0.21 0.04 0.56 NM 0.21 DRY 0.05 0.10 0.07 0.41 0.95 0.13 0.26 0.27 0.37 1.04 ORP (mV)DRY -100.6 -108.0 -111.5 NM -91.9 -5.7 -111.2 NM -89.2 DRY -129.7 -112.9 -4.3 -125.4 -58.4 -121.1 -49.6 -95.7 -91.9 -81.0 Well No. Date Measured 12/17/12 05/13/13 12/10/13 05/12/14 12/15/14 06/09/15 12/07/15 06/28/16 12/13/16 06/07/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/22/20 1/11/22 02/15/23 11/28/23 12/17/24 GW Elevation 917.28 922.16 920.31 923.16 918.75 919.86 922.96 923.01 917.67 922.65 916.66 921.56 924.02 921.84 920.98 925.01 924.01 919.91 923.1 918.57 920.16 *pH 6.43 6.14 6.44 6.18 6.12 6.09 5.83 6.89 6.36 6.31 6.07 5.99 6.19 6.10 6.31 5.75 5.94 6.16 NM 6.16 5.58 Water Temperature (degrees Celsius) 17.2 17.57 17.2 17.43 17.2 17.4 17.36 17.81 17.10 17.3 17.8 17.5 17.3 18.5 18.5 18.7 17.6 17.3 NM 17.83 18.14 SP. COND. (µS/cm)123.8 143 120.3 142 119 135.1 124 108 114 128 121.5 131.7 115.7 119.5 0.127 105 122.7 199.6 NM 129 116 Dissolved Oxygen Content (mg/L) 0.11 0.03 0.06 0.09 0.16 0.14 0.05 0.2 0.11 0.18 0.11 0.01 0.01 0.03 0.10 0.12 0.2 0.1 NM 0.33 0.84 ORP (mV)-152.3 -123.3 -47.4 -28.1 -23.9 28.3 129.6 -112.3 -51.7 -13.0 -3.6 -37.0 5.2 -24.6 -31.1 -21.4 -32.4 -30.5 NM -92.40 8.0 Well No. Date Measured 12/19/12 05/16/13 12/10/13 05/15/14 12/15/14 06/10/15 12/09/15 06/29/16 12/12/16 06/07/17 12/12/17 05/15/18 11/27/18 5/22/19 11/26/19 6/1/20 12/21/20 GW Elevation 913.39 917.20 915.84 918.10 914.77 915.66 917.91 915.51 913.43 917.80 912.97 916.84 918.95 922.49 916.29 NM NM *pH 5.54 5.74 5.96 5.81 5.51 5.97 6.53 6.59 NM 6.42 4.75 6.13 6.28 6.26 6.20 NM NMWater Temperature (degrees Celsius) 17.9 16.87 17.8 16.16 18.1 16.7 18.91 17.43 NM 18.5 18.9 17.5 19.6 18.1 20.2 NM NM SP. COND. (µS/cm)78.6 145 139.5 177 125.5 178.5 218 211 NM 257 77.8 226.8 236.5 172.9 0.247 NM NM Dissolved Oxygen Content (mg/L) 0.26 0.14 0.18 0.17 0.42 0.15 0.49 1.2 NM 0.24 0.7 0.19 0.05 0.03 0.49 NM NM ORP (mV)81.2 21.3 -3.4 143.5 113.2 21.1 -14.9 -65.6 NM -91.3 80.9 -64.7 -87.4 -50.6 -80.6 NM NM TABLE 5: HISTORICAL FIELD NATURAL ATTENUATION DATA MW-4 MW-2D MW-2S 25003023.001A PAGE 1 OF 10 TABLE 5: HISTORICAL FIELD NATURAL ATTENUATION DATA Well No. Date Measured 12/17/12 05/13/13 12/10/13 05/12/14 12/14/14 06/09/15 12/07/15 06/27/16 12/12/16 06/07/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 1/11/22 02/14/23 11/29/23 12/18/24 GW Elevation 912.33 917.77 916.06 917.22 913.82 914.24 918.55 915.80 911.93 917.99 911.19 917.14 921.02 919.10 913.57 921.44 921.22 918.01 920.93 913.04 917.22 *pH 6.19 6.08 6.25 6.34 6.08 6.08 5.98 6.60 6.36 6.35 6.06 6.34 6.42 5.87 6.51 6.07 5.62 6.24 6.50 6.15 6.09 Water Temperature (degrees Celsius) 17.0 17.22 17.3 17.16 16.9 16.7 17.25 17.05 17.50 17.10 17.4 17.6 17.9 17.1 19.8 17.7 16.1 17.43 18.04 17.6 18.24 SP. COND. (µS/cm)358.5 416 318.7 321 406.7 382.6 335 337 410.7 318 346.7 336.0 303.2 273.5 0.356 28 0.9 238 259 274 258 Dissolved Oxygen Content (mg/L) 0.38 0.05 0.03 0.19 0.15 NM 0.08 1.23 0.22 0.22 0.45 1.24 0.04 5.5 0.40 0.77 0.21 0.09 0.25 0.31 0.75 ORP (mV)-29.0 -41.7 -34.1 -35.2 12.6 -5.3 28.8 4.5 -32.4 -9.2 -41.2 -73.3 -65.3 -41.5 -72.9 -71.1 -96.4 -30.7 -77.0 -89.0 -71.0 Well No. Date Measured 12/17/12 05/13/13 12/10/13 05/12/14 12/15/14 06/09/15 12/07/15 06/27/16 12/12/16 06/07/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 1/11/22 02/14/23 11/29/23 12/18/24 GW Elevation 910.91 914.61 913.06 915.05 911.42 911.49 915.27 913.34 908.81 914.69 909.58 912.60 916.18 914.94 918.39 916.93 916.22 913.16 916.1 910.87 912.99 *pH 6.42 6.23 6.43 6.35 NM 6.33 5.89 6.62 6.45 6.44 6.28 6.21 6.35 6.26 6.45 5.89 6.25 6.40 6.51 6.52 6.29 Water Temperature (degrees Celsius) 16.9 17.0 16.9 17.37 NM 17.3 17.15 17.66 17.10 17.20 17.3 17.6 17.4 18.0 18.5 18.68 17.5 17.4 18.7 17.91 18.24 SP. COND. (µS/cm)486.4 519 439.2 492 NM 500.4 492 490 492.8 521 505.6 493.9 443.5 387.5 0.809 443 485.7 448.3 435 464 394 Dissolved Oxygen Content (mg/L) 0.15 0.03 0.04 0.15 NM 0.16 0.08 0.32 0.14 0.22 0.19 0.14 0.05 0.33 2.45 0.19 0.07 0.09 0.10 0.53 6.35 ORP (mV)-7.4 -4.5 -24.9 -1.5 NM 25.0 156.7 23.0 -5.8 25.5 -11.4 17.1 17.0 9.3 18.6 5.4 -28.2 23.5 -10.0 -78.7 -8.0 Well No. Date Measured 12/19/12 05/16/13 12/11/13 05/15/14 12/14/14 06/09/15 12/09/15 06/27/16 12/12/16 06/07/17 12/12/17 05/15/18 11/28/18 5/22/19 11/26/19 6/1/20 12/21/20 GW Elevation 917.16 921.40 919.47 922.28 917.56 918.16 920.48 921.15 916.88 921.28 915.98 920.68 924.08 922.66 920.28 NM NM *pH 4.71 4.53 4.73 4.64 4.20 3.75 4.80 4.83 4.47 4.49 4.63 4.75 4.55 4.87 5.24 NM NM Water Temperature (degrees Celsius) 22.9 21.34 22.1 20.14 22.0 20.2 22.76 22.00 22.5 21.2 22.9 21.1 22.6 20.7 23.0 NM NM SP. COND. (µS/cm)22.9 41 36.7 41 42 37.6 45 51 26 50 49.5 92.7 44.9 86.7 0.072 NM NM Dissolved Oxygen Content (mg/L) 0.46 0.23 0.11 0.12 0.26 0.13 0.20 0.95 0.54 0.32 0.20 0.57 0.06 0.20 0.38 NM NM ORP (mV)191.3 183.7 205.4 465.1 118.3 -60.1 101.5 59.7 241.7 241.9 135.8 87.9 191.3 77.2 179.1 NM NM MW-6 MW-5DR MW-5SR 25003023.001A PAGE 2 OF 10 TABLE 5: HISTORICAL FIELD NATURAL ATTENUATION DATA Well No. Date Measured 12/19/12 05/16/13 12/11/13 05/13/14 12/14/14 06/09/15 12/07/15 06/27/16 12/12/16 06/07/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 912.95 917.14 915.95 917.56 913.48 914.81 917.36 916.38 910.24 916.54 NM NM NM NM NM NM NM *pH 6.17 5.29 5.80 4.86 6.01 4.67 5.60 5.65 6.32 5.92 NM NM NM NM NM NM NM Water Temperature (degrees Celsius) 19.6 18.0 17.9 17.62 18.3 17.3 18.52 17.98 18.80 18.30 NM NM NM NM NM NM NM SP. COND. (µS/cm)168.2 75 94.4 62 186.9 86.7 144 124 196 149 NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 0.67 5.11 3.71 4.54 0.86 3.87 1.81 1.97 0.25 0.65 NM NM NM NM NM NM NM ORP (mV)146.9 173.4 201.4 209.7 142.8 -54.6 199.2 41.8 71.9 54.2 NM NM NM NM NM NM NM Well No. Date Measured 12/19/12 05/15/13 12/10/13 05/13/14 12/15/14 06/09/15 12/07/15 06/28/16 12/12/16 06/07/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 918.70 923.53 922.35 925.74 916.94 921.39 924.62 923.41 917.89 923.43 NM NM NM NM NM NM NM *pH 4.64 4.38 4.82 4.39 4.40 4.62 5.66 4.72 4.68 4.64 NM NM NM NM NM NM NM Water Temperature (degrees Celsius) 18.6 17.19 18.2 17.05 18.6 16.8 18.71 17.79 18.50 17.40 NM NM NM NM NM NM NM SP. COND. (µS/cm)48.1 49 73.4 70 58.3 92.6 52 54 49 46 NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 3.80 9.22 5.67 5.24 5.02 4.24 5.66 4.13 2.70 3.46 NM NM NM NM NM NM NM ORP (mV)398.0 319.0 369.2 252.7 310.8 268.5 198.5 59.7 256.0 226.7 NM NM NM NM NM NM NM Well No. Date Measured 12/19/12 05/14/13 12/09/13 05/14/14 12/14/14 06/09/15 12/08/15 6/28/2016 12/13/16 06/07/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 921.88 922.72 924.16 924.30 919.70 921.19 923.15 924.09 NM 922.86 NM NM NM NM NM NM NM *pH 5.26 4.98 5.33 5.21 5.33 NM 5.11 5.43 NM NM NM NM NM NM NM NM NM Water Temperature (degrees Celsius) 19.2 17.76 14.2 21.37 17.9 NM 18.99 21.69 NM NM NM NM NM NM NM NM NM SP. COND. (µS/cm)42.5 44 42.8 41 50.2 NM 47 41 NM NM NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 3.14 6.51 5.11 7.70 1.37 NM 4.41 1.87 NM NM NM NM NM NM NM NM NM ORP (mV)280.0 241.8 289.3 254.0 178.3 NM 209.4 81.8 NM NM NM NM NM NM NM NM NM MW-7 MW-8 MW-9 25003023.001A PAGE 3 OF 10 TABLE 5: HISTORICAL FIELD NATURAL ATTENUATION DATA Well No. Date Measured 12/19/12 05/14/13 12/09/13 05/14/14 12/14/14 06/10/15 12/08/15 06/28/16 12/13/16 06/08/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 919.25 923.66 921.58 922.68 918.35 921.15 922.79 921.37 917.70 920.94 NM NM NM NM NM NM NM *pH NM 4.70 4.97 4.76 4.59 3.98 4.60 4.99 4.12 4.78 NM NM NM NM NM NM NM Water Temperature (degrees Celsius) NM 18.39 17.7 18.0 18.0 17.4 18.71 17.83 18.1 18.1 NM NM NM NM NM NM NM SP. COND. (µS/cm)NM 41 35.9 44 39 43 40 40 39 42 NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) NM 2.02 1.42 3.4 1.21 NM 3.47 4.16 1.24 2.99 NM NM NM NM NM NM NM ORP (mV)NM 264.4 298.5 269.3 211.6 249.5 210.4 88.2 101.1 195.2 NM NM NM NM NM NM NM Well No. Date Measured 12/18/12 05/13/13 12/10/13 05/12/14 12/15/14 06/09/15 12/07/15 06/29/16 12/13/16 06/08/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 907.35 911.12 909.66 910.40 908.29 908.17 907.06 913.20 907.40 909.87 NM NM NM NM NM NM NM *pH 5.45 4.77 5.49 4.74 5.20 4.76 5.54 5.55 NM NM NM NM NM NM NM NM NM Water Temperature (degrees Celsius) 16.8 15.18 16.2 15.07 16.0 15.0 16.25 16.9 NM NM NM NM NM NM NM NM NM SP. COND. (µS/cm)40.7 43 37.2 50 41.3 44.2 45 40 NM NM NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 0.08 0.06 0.04 0.45 0.17 NM 0.34 0.84 NM NM NM NM NM NM NM NM NM ORP (mV)301.4 254.8 320.4 371.3 547.0 348.8 54.8 34.6 NM NM NM NM NM NM NM NM NM Well No. Date Measured 12/18/12 05/13/13 12/10/13 05/12/14 12/15/14 06/09/15 12/07/15 6/29/2016 12/13/16 06/08/17 12/12/17 05/15/18 11/27/18 5/23/19 11/25/19 6/2/20 12/22/20 02/15/23 11/29/23 12/18/24 GW Elevation 906.64 910.36 908.93 909.69 907.60 907.48 910.73 908.14 905.96 909.56 905.59 908.73 911.02 909.08 908.95 910.68 911.58 910.98 906.86 908.88 *pH 6.35 6.19 6.44 6.12 NM 6.28 5.85 6.68 NM NM NM NM NM NM NM NM NM NM NM NM Water Temperature (degrees Celsius) 16.9 16.95 16.8 17.12 NM 17.1 17.23 16.58 NM NM NM NM NM NM NM NM NM NM NM NM SP. COND. (µS/cm)188.9 234 203.7 235 NM 231.9 225 219 NM NM NM NM NM NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 0.10 0.07 3.70 0.12 NM 0.65 3.06 1.78 NM NM NM NM NM NM NM NM NM NM NM NM ORP (mV)28.2 -12.3 37.8 57.3 NM 100.0 189.4 42.5 NM NM NM NM NM NM NM NM NM NM NM NM MW-11S MW-10 MW-11D 25003023.001A PAGE 4 OF 10 TABLE 5: HISTORICAL FIELD NATURAL ATTENUATION DATA Well No. Date Measured 12/19/12 05/15/13 12/10/13 05/15/14 12/15/15 06/09/15 12/08/15 06/27/16 12/12/16 06/08/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 915.36 919.33 917.34 919.68 915.59 916.18 919.80 918.42 914.30 920.37 NM NM NM NM NM NM NM *pH NM 5.84 6.22 5.92 6.07 5.52 6.76 6.45 NM 5.67 NM NM NM NM NM NM NM Water Temperature (degrees Celsius) NM 20.9 21.7 20.02 24.0 21.5 24.35 23.74 NM 21.5 NM NM NM NM NM NM NM SP. COND. (µS/cm)NM 77 95.6 105 76 98.8 96 84 NM 88.7 NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) NM 1.53 5.21 0.52 0.80 0.25 1.45 1.03 NM 2.13 NM NM NM NM NM NM NM ORP (mV)NM 126.0 133.4 223.1 167.1 -71.6 32.2 37.5 NM NM NM NM NM NM NM NM NM Well No. Date Measured 12/19/12 05/16/13 12/10/13 05/15/14 12/15/14 06/09/15 12/07/15 06/27/16 12/12/16 06/08/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 913.23 917.83 917.16 917.58 915.77 914.66 918.98 916.36 913.58 917.21 NM NM NM NM NM NM NM *pH 5.17 4.49 4.89 4.46 4.36 4.41 5.27 5.41 4.23 4.30 NM NM NM NM NM NM NM Water Temperature (degrees Celsius) 18.4 15.75 15.1 14.67 17.1 15.3 18.44 16.67 18.70 17.0 NM NM NM NM NM NM NM SP. COND. (µS/cm)89.5 94 107.4 110 143.4 148.7 132 135 120 125.1 NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 2.79 0.42 0.61 0.39 0.59 0.41 0.81 1.65 4.9 1.09 NM NM NM NM NM NM NM ORP (mV)182.7 242.7 248.5 277.0 191.5 -30.0 93.9 34.6 162.0 NM NM NM NM NM NM NM NM Well No. Date Measured 12/19/12 05/16/13 12/10/13 05/15/14 12/15/14 06/09/15 12/07/15 06/29/16 12/12/16 06/07/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 909.93 915.46 915.91 915.71 911.74 915.67 916.80 913.18 910.38 915.28 NM NM NM NM NM NM NM *pH 5.84 5.31 5.50 4.90 NM 4.38 5.42 5.53 4.98 5.46 NM NM NM NM NM NM NM Water Temperature (degrees Celsius) 18.3 17.42 17.2 15.9 NM 16.7 18.62 17.56 17.9 17.5 NM NM NM NM NM NM NM SP. COND. (µS/cm)144.2 88 87.4 65 NM 61.8 77 69 110 91 NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 0.27 2.60 0.28 0.20 NM 0.62 4.99 1.42 0.2 1.0 NM NM NM NM NM NM NM ORP (mV)-15.3 161.7 92.7 368.7 NM 20.2 76.8 80.3 119.4 97.9 NM NM NM NM NM NM NM MW-13 MW-14 MW-16 25003023.001A PAGE 5 OF 10 TABLE 5: HISTORICAL FIELD NATURAL ATTENUATION DATA Well No. Date Measured 12/18/12 05/15/13 12/09/13 05/14/14 12/15/14 06/09/15 12/08/15 06/28/16 12/12/16 06/07/17 12/12/17 05/15/18 11/27/18 5/22/19 11/26/19 6/2/20 12/22/20 1/12/22 02/14/23 11/28/23 12/17/24 GW Elevation 918.22 922.18 920.26 923.09 910.86 920.00 922.56 922.11 917.56 921.97 916.84 921.41 924.18 923.36 921.15 925.94 924.58 919.55 923.25 918.65 920.51 *pH 6.34 6.13 6.34 6.14 6.30 6.11 6.86 6.76 6.13 6.36 6.21 6.31 6.26 5.75 5.96 5.78 5.98 6.03 6.43 6.15 6.25 Water Temperature (degrees Celsius) 20.2 19.44 20.0 19.53 20.2 19.0 20.32 19.90 19.90 19.90 20.4 20.0 20.9 19.6 20.9 20.9 19.9 19.76 20.91 20.48 21.17 SP. COND. (µS/cm)468.4 422 454.1 394 518 511.4 564 396 560 556 553 546 416.5 261.4 0.421 151 186.0 304.0 459 422 301 Dissolved Oxygen Content (mg/L) 0.21 0.12 0.45 0.11 0.06 NM 0.07 0.28 0.22 0.23 0.18 0.08 0.02 0.07 0.70 0.22 0.09 0.17 0.30 0.37 0.74 ORP (mV)-86.8 -50.2 -88.9 -37.6 -241.1 -52.5 -56.0 -66.6 -66.4 -77.8 -100.9 -74.6 -63.9 29.2 -71.1 -42.3 -52.8 -88.9 -67.9 -83.4 -56 Well No. Date Measured 12/15/14 06/09/15 12/07/15 06/28/16 12/12/16 6/7/2017 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/2020 12/21/20 02/14/23 11/28/23 12/17/24 GW Elevation NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM *pH NM 6.93 6.53 7.55 NM NM NM NM NM NM NM NM NM 6.89 5.07 6.22 Water Temperature (degrees Celsius) NM 20.0 19.79 17.88 NM NM NM NM NM NM NM NM NM 23.2 19.35 19.69 SP. COND. (µS/cm)NM 225.8 221 204 NM NM NM NM NM NM NM NM NM 147.0 153 140 Dissolved Oxygen Content (mg/L) NM 3.05 1.54 5.37 NM NM NM NM NM NM NM NM NM 3.21 3.30 6.41 ORP (mV)NM 76.3 184.1 36.5 NM NM NM NM NM NM NM NM NM 93.1 180 100 Well No. Date Measured 12/19/12 05/14/13 12/09/13 05/13/14 12/15/14 06/10/15 12/07/15 6/28/2016 12/12/16 06/08/17 12/12/17 05/15/18 11/27/18 5/22/19 11/26/19 6/1/20 12/21/20 GW Elevation 922.69 926.16 924.72 927.79 923.47 924.92 927.26 927.26 922.56 926.15 921.06 925.56 928.84 928.16 925.74 NM NM *pH 5.68 5.63 5.76 5.59 5.23 5.20 6.35 6.15 5.28 5.56 5.36 5.33 5.45 5.17 5.42 NM NM Water Temperature (degrees Celsius) 20.7 17.89 17.5 17.73 20.1 17.6 20.28 18.65 20.40 18.9 20.2 18.4 20.4 18.1 20.9 NM NM SP. COND. (µS/cm)122.7 132 123.6 138 133.8 122.2 118 101 121 106 112.7 105.6 85.9 96.1 0.002 NM NM Dissolved Oxygen Content (mg/L) 0.10 0.06 0.23 0.18 0.13 0.12 0.07 0.47 0.18 0.22 0.57 0.13 0.01 4.19 0.08 NM NM ORP (mV)-16.3 -8.7 3.5 26.3 50.5 64.1 40.0 -36.7 8.2 41.7 30.5 16.1 32.3 -6.7 52.5 NM NM MW-19 MW-17 MW-17D 25003023.001A PAGE 6 OF 10 TABLE 5: HISTORICAL FIELD NATURAL ATTENUATION DATA Well No. Date Measured 12/19/12 05/14/13 12/09/13 05/13/14 12/15/14 06/09/15 12/07/15 6/28/16 12/12/16 06/08/17 12/12/17 05/15/18 11/27/18 5/22/19 11/26/19 6/1/20 12/21/20 GW Elevation 918.36 922.80 921.13 924.35 919.92 921.45 923.69 923.58 917.34 922.93 918.44 922.35 925.59 925.09 922.68 NM NM *pH 5.94 5.91 5.94 5.74 5.41 5.39 5.98 6.71 5.59 6.03 5.78 5.9 5.95 5.75 6.05 NM NM Water Temperature (degrees Celsius) 20.3 19.76 19.7 19.54 20.5 19.4 20.95 19.97 20.5 20.3 20.5 20.6 21.1 21.5 21.1 NM NM SP. COND. (µS/cm)316.3 332 296.5 131 270.9 278.0 150 276 312 351 356.2 351.8 283.6 20.2 0.173 NM NM Dissolved Oxygen Content (mg/L) 0.88 0.11 0.37 0.26 0.32 NM 0.11 0.67 0.18 0.31 0.33 0.26 0.05 0.05 0.39 NM NM ORP (mV)-76.5 -18.9 -65.5 31.5 36.7 29.9 58.3 -111.5 -7 -4.8 -47.1 -42.2 -41.9 -15.8 -21.5 NM NM Well No. Date Measured 12/17/12 05/14/13 12/09/13 05/13/14 12/15/14 06/10/15 12/08/15 06/28/16 12/13/16 06/08/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 1/11/22 02/14/23 11/28/23 12/17/24 GW Elevation 919.33 922.71 921.03 924.27 919.84 921.27 923.43 923.58 919.03 922.80 918.48 922.35 925.63 925.18 922.60 926.20 925.89 921.06 924.13 920.18 921.53 *pH 5.39 5.38 5.47 5.27 5.16 4.86 5.28 5.92 5.36 5.53 4.96 5.19 5.47 5.17 5.51 5.1 5.33 5.29 5.78 5.23 5.50 Water Temperature (degrees Celsius) 19.5 18.61 19.1 18.71 19.5 18.4 19.81 18.91 19.7 18.80 19.2 17.9 20.2 18.9 20.1 19.21 18.7 18.75 19.44 19.39 18.87 SP. COND. (µS/cm)99.9 111 101.3 109 112.1 124.6 126 121 100.8 141 120.4 174.8 135.9 133.6 0.009 194 195.7 84 188 145 201 Dissolved Oxygen Content (mg/L) 0.49 0.37 0.12 0.42 0.45 NM 0.29 0.35 0.76 0.60 0.48 0.26 0.02 0.06 0.19 0.86 2.00 1.34 2.85 1.25 0.56 ORP (mV)-19.8 55.8 56.2 74.6 71.4 82.4 184.0 -33.8 119.3 55.8 44.2 1.9 19.5 11.6 50.0 28.0 -4.5 2.5 -118.7 -81.0 20.0 Well No. Date Measured 12/17/12 05/13/13 12/10/13 05/12/14 12/15/14 06/10/15 12/08/15 06/28/16 12/13/16 06/08/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 02/14/23 11/28/23 12/17/24 GW Elevation 919.95 922.50 919.99 924.05 919.62 921.03 923.00 923.24 918.79 922.48 918.21 922.11 924.64 924.77 922.37 926.04 925.25 923.93 919.93 921.35 *pH 6.58 6.35 6.53 6.38 6.43 6.27 5.98 6.05 6.56 6.45 6.36 6.26 6.33 6.45 6.51 6.17 6.29 6.62 6.18 5.78 Water Temperature (degrees Celsius) 18.4 18.62 18.5 18.81 18.5 18.7 18.5 18.56 18.3 18.5 18.6 18.7 18.5 21.3 19.4 20.09 18.8 19.6 18.66 18.8 SP. COND. (µS/cm)409.7 446 380.8 451 447.3 461.6 468 459 451.2 500 462.4 463.5 423.9 461.7 0.426 439 108.5 408 386 380 Dissolved Oxygen Content (mg/L) 0.22 0.11 0.05 0.15 0.09 0.10 0.25 0.21 0.19 0.2 0.09 0.25 0.14 0.18 0.13 0.11 0.11 0.60 1.10 0.55 ORP (mV)-67.8 -52.1 -74.9 -47.5 -65.3 -7.7 131.4 -189.2 -73.9 -74.8 -47.5 -55.5 -18.3 -29.2 -82.3 -32.6 -85.8 -104.0 -84.00 -30.00 MW-21D MW-21 MW-20 25003023.001A PAGE 7 OF 10 TABLE 5: HISTORICAL FIELD NATURAL ATTENUATION DATA Well No. Date Measured 12/18/12 05/14/13 12/09/13 05/13/14 12/14/14 06/09/15 12/08/15 06/28/16 12/12/16 06/07/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 917.64 922.97 920.88 922.28 919.21 NM 923.67 923.53 917.60 925.65 NM NM NM NM NM NM NM *pH NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM Water Temperature (degrees Celsius) NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM SP. COND. (µS/cm)NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM ORP (mV)NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM Well No. Date Measured 12/19/12 05/15/13 12/09/13 05/13/14 12/15/14 06/10/15 12/09/15 06/28/16 12/12/16 06/08/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 921.92 926.58 924.80 928.02 921.36 NM NM 924.61 919.96 924.70 NM NM NM NM NM NM NM *pH 4.58 4.15 4.53 4.27 4.33 NM 4.44 4.78 3.88 3.80 NM NM NM NM NM NM NM Water Temperature (degrees Celsius) 18.5 17.84 17.4 18.06 18.3 NM 18.33 18.19 18.2 18.3 NM NM NM NM NM NM NM SP. COND. (µS/cm)28.2 27 28.6 30 29.6 NM 30 33 30 35.6 NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 0.17 0.84 0.67 1.02 0.53 NM 0.80 1.33 0.41 0.92 NM NM NM NM NM NM NM ORP (mV)394.7 321.7 322.0 371.0 279.0 NM 154.1 31.7 144.7 NM NM NM NM NM NM NM NM Well No. Date Measured 12/18/12 05/14/13 12/09/13 05/14/14 12/14/14 06/09/15 12/08/15 06/28/16 12/13/16 06/08/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 916.25 923.37 921.50 924.66 920.24 918.20 924.22 924.54 919.50 921.49 NM NM NM NM NM NM NM *pH 6.40 6.03 6.30 5.66 6.27 5.84 6.40 6.25 6.07 5.34 NM NM NM NM NM NM NM Water Temperature (degrees Celsius) 17.7 17.38 17.6 17.23 17.4 16.4 17.9 17.13 17.1 17.2 NM NM NM NM NM NM NM SP. COND. (µS/cm)264.4 140 193.5 100 221.2 211.3 104 109 218 104.2 NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 0.09 0.12 0.29 0.73 0.19 NM 0.32 0.83 0.20 0.80 NM NM NM NM NM NM NM ORP (mV)-94.2 -16.1 -64.5 47.8 -53.1 -8.0 24.6 -26.6 -47.0 NM NM NM NM NM NM NM NM MW-24 MW-22 MW-23 25003023.001A PAGE 8 OF 10 TABLE 5: HISTORICAL FIELD NATURAL ATTENUATION DATA Well No. Date Measured 12/19/12 05/16/13 12/10/13 05/15/14 12/15/14 06/10/15 12/08/15 06/29/16 12/12/16 06/07/17 12/12/17 05/15/18 11/27/18 5/22/19 11/26/19 6/2/20 12/22/20 1/12/22 02/15/23 11/29/23 12/18/24 GW Elevation 919.09 922.89 921.67 924.27 920.28 921.47 923.43 923.37 918.98 922.97 918.24 922.33 924.80 924.16 921.84 925.57 924.63 923.41 923.68 919.63 920.91 *pH 5.02 5.10 5.14 5.24 5.26 5.33 5.33 6.03 5.38 5.44 5.17 5.11 5.35 5.73 5.59 5.39 5.59 5.7 6.12 5.91 6.1 Water Temperature (degrees Celsius) 34.1 34.25 34.5 32.67 35.7 33.1 35.32 33.67 36.20 35.5 35.2 36.3 37.5 36.5 37.4 37.02 36.4 36.66 37.89 37.71 37.47 SP. COND. (µS/cm)3801 3393 3955 4355 4570 4579 4414 3850 4018 3550 3617 3482 2323 180.1 0.90 639 430 333 206 189 127 Dissolved Oxygen Content (mg/L) 0.12 0.06 0.18 0.12 0.15 NM 0.18 0.46 0.12 0.10 0.32 0.02 0.01 0.02 0.40 0.17 0.20 0.03 0.18 0.16 1.05 ORP (mV)39.1 10.8 -2.7 58.7 32.7 -1.7 42.0 -53.1 -11.6 -25.8 1.5 -4 -21.1 -41.6 -108.9 -47.6 -78.4 -48.5 -82.2 -102.1 -72 Well No. Date Measured 12/19/12 05/15/13 12/09/13 05/14/14 12/14/14 06/09/15 12/08/15 06/29/16 12/13/16 06/08/17 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/1/20 12/21/20 GW Elevation 909.92 914.50 922.75 925.61 921.02 922.58 925.29 928.33 919.77 924.69 NM NM NM NM NM NM NM *pH 4.53 4.10 4.56 4.44 4.36 3.40 4.45 4.80 4.02 3.71 NM NM NM NM NM NM NM Water Temperature (degrees Celsius) 17.6 16.26 17.6 16.21 17.3 16.1 18.37 17.6 17.20 17.10 NM NM NM NM NM NM NM SP. COND. (µS/cm)54.3 46 48.7 38 44.5 40.6 38 33 38 36.4 NM NM NM NM NM NM NM Dissolved Oxygen Content (mg/L) 6.92 8.77 12.39 8.87 7.95 NM 7.41 8.9 5.66 6.92 NM NM NM NM NM NM NM ORP (mV)364.1 273.3 228.1 253.6 225.0 206.3 215.5 114.1 177.3 NM NM NM NM NM NM NM NM MW-27 MW-28 25003023.001A PAGE 9 OF 10 TABLE 5: HISTORICAL FIELD NATURAL ATTENUATION DATA Well No. Date Measured 12/18/12 05/15/13 12/11/13 05/14/14 12/15/14 06/10/15 12/09/15 06/29/16 12/13/16 6/8/2017 12/12/17 05/15/18 11/27/18 5/21/19 11/25/19 6/2/20 12/21/20 1/12/22 02/15/23 11/29/23 GW Elevation 915.66 921.04 919.56 921.92 916.97 918.18 933.81 921.06 916.11 922.12 NM NM NM NM NM 924.56 923.57 919.23 922.93 NM *pH 4.68 4.20 NM NM 4.33 4.00 NM NM NM NM NM NM NM NM NM 3.84 NM 4.52 4.36 NM Water Temperature (degrees Celsius) 17.9 16.57 NM NM 17.5 16.2 NM NM NM NM NM NM NM NM NM 17.74 NM 17.56 17.62 NM SP. COND. (µS/cm)21.9 26 NM NM 25 24.6 NM NM NM NM NM NM NM NM NM 6 NM 17 20 NM Dissolved Oxygen Content (mg/L) 0.13 0.34 NM NM 0.17 0.12 NM NM NM NM NM NM NM NM NM 1.29 NM 0.64 1.12 NM ORP (mV)284.4 307.3 NM NM 395.1 276.3 NM NM NM NM NM NM NM NM NM 186.1 NM -9.7 332.6 NM NOTES: 1) * unitless. 2) mV = millivolts. 3) mg/L = milligrams per liter. 4) µS/cm = microsiemens per centimeter. 5) NM = Not Measured. 6) ORP = oxidation reduction potential. MW-34 25003023.001A PAGE 10 OF 10 Parameter Sample ID MW-2S MW-4 MW-5SR MW-6 MW-7 MW-8 MW-9 MW-10 MW-11S MW-13 MW-14 MW-16 Sample Date 12/17/24 ---12/18/24 --------------------------- Volatile Organic Compounds by EPA Method 6200B benzene 1400 NS 580 NS NS NS NS NS NS NS NS NS 1 5000 toluene <10 NS 26 NS NS NS NS NS NS NS NS NS 600 260000 ethylbenzene <10 NS 240 NS NS NS NS NS NS NS NS NS 600 84500 xylenes (total)150 NS 54 NS NS NS NS NS NS NS NS NS 500 85500 Total BTEX 1550 NS 900 NS NS NS NS NS NS NS NS NS ------ MTBE 18 NS 150 NS NS NS NS NS NS NS NS NS 20 20000 IPE/DIPE 12 NS 24 NS NS NS NS NS NS NS NS NS 70 70000 Isopropylbenzene 120 NS 120 NS NS NS NS NS NS NS NS NS 70 25000 naphthalene 300 NS 490 NS NS NS NS NS NS NS NS NS 6 6000 Parameter Sample ID MW-17 MW-19 MW-20 MW-21 MW-22 MW-23 MW-24 MW-27 MW-28 MW-34 Sample Date 12/17/24 ------12/17/24 ---------12/18/24 ------ Volatile Organic Compounds by EPA Method 6200B benzene 2600 NS NS 4200 NS NS NS 2100 NS NL 1 5000 toluene <25 NS NS 75 NS NS NS <10 NS NL 600 260000 ethylbenzene 1500 NS NS 2700 NS NS NS 55 F1 NS NL 600 84500 xylenes (total)83 NS NS 4900 NS NS NS 140 F1 NS NL 500 85500 Total BTEX 4183 NS NS 11875 NS NS NS 2295 NS NL ------ MTBE 3100 NS NS <25 NS NS NS 70 F1 NS NL 20 20000 IPE/DIPE 430 NS NS <25 NS NS NS <10 NS NL 70 70000 Isopropylbenzene 51 NS NS 76 NS NS NS <10 NS NL 70 25000 naphthalene 350 NS NS 290 NS NS NS 260 F1 NS NL 6 6000 Parameter Sample ID MW-2D MW-5DR MW-11D MW-17D MW-21D Sample Date 12/17/24 12/18/24 12/18/24 12/17/24 12/17/24 Volatile Organic Compounds by EPA Method 6200B benzene 1300 <0.50 7.6 1.4 1800 1 5000 toluene <25 <0.50 <0.50 <0.50 <10 600 260000 ethylbenzene 90 <0.50 <0.50 <0.50 420 600 84500 xylenes (total)<25 <0.50 <0.50 <0.50 97 500 85500 Total BTEX 1390 <0.50 7.6 1.4 2317 ------ MTBE 1100 730 100 1.0 <10 20 20000 IPE/DIPE 460 110 9.1 <0.50 87 70 70000 Isopropylbenzene <25 <0.50 1.1 <0.50 25 F1 70 25000 naphthalene 150 <0.50 1.6 <0.50 63 6 6000 NOTES: 1) Concentrations expressed in micrograms per liter (µg/L)5) Shaded concentrations exceed the NC 2L standard 2) NC 2L = North Carolina Groundwater Standard (April 2022)6) Bold, italic and underlined concentations equal or exceed the GCL 3) GCL = Gross Contaminant Level 7) NS = Not Sampled 4) MTBE = Methyl tert-butyl ether 8) NA = Constituent not analyzed 5) J = Detected but below the Reporting Limit; result is estimated correction 9) E = Result above calibration range 10) NL = Not located TABLE 6: GROUNDWATER SAMPLE ANALYTICAL RESULTS Analytical Results Analytical Results Comparison Criteria-2L Standards Comparison Criteria-GCLs Comparison Criteria-2L Standards Analytical Results Comparison Criteria-2L Standards Comparison Criteria-GCLs Comparison Criteria-GCLs 25003023.001A PAGE 1 OF 1 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene 01/07/97 BDL BDL BDL BDL BDL NA NA NA BDL 11/18/99 BQL BQL BQL BQL BQL NA NA NA BQL 06/19/02 IA IA IA IA IA IA NA NA IA 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 05/20/97 14 66 274 968 1322 NA NA NA 128 11/18/99 NS NS NS NS NS NA NA NA NS 06/19/02 IA IA IA IA IA IA NA NA IA 01/14/04 NS NS NS NS NS NS NA NA NS 05/25/06 NS NS NS NS NS NS NS NS NS 01/24/07 01/07/97 7825 34000 3000 20000 64825 NA NA NA 650 11/18/99 7890 37400 3820 19710 68820 NA NA NA BQL 06/19/02 NS NS NS NS NS NS NA NA NS 01/14/04 8450 23920 3410 17510 53290 3440 NA NA 485 05/25/06 8750 24400 4610 28400 66160 1350 462 NA 46.9 01/24/07 9850 20500 2220 18020 50590 9.42 368 NA 191 04/26/07 9568 19744 2800 17384 49496 959 351 NA 226 07/26/07 11100 18700 3930 18536 52266 527 278 NA 323 10/25/07 NS NS NS NS NS NS NS NA NS 03/19/08 2870 11300 601 16470 31241 NA NA NA 230 09/23/08 4240 7420 1320 10020 23000 430 230 NA 252 3/25-26/09 3970 5110 652 4330 14062 NA NA NA 86.8 12/20-21/11 3250 265 502 1186 5203 543 161 NA 76.2 06/06/12 5230 352 766 1226 7574 600 212 NA 37.7 12/17/12 05/15/13 6130 863 1010 1953 9956 598 205 58.5 82.5 12/10/13 5750 1490 1300 2890 11430 445 168 53.7 126 05/12/14 5230 1130 1210 3980 11550 620 231 58.4 141 12/15/14 7280 480 2130 3780 13670 346 161 70 222 06/10/15 5300 996 1590 4218 12104 405 180 68.1 157 12/07/15 4250 1300 1450 5250 12250 311 141 55.7 127 06/28/16 3190 433 1040 4080 8743 261 115 44.9 132 12/13/16 3610 27.6 1690 1219 6547 45.6 35.2 60.6 177 06/07/17 4250 595 2100 3810 10755 118 69.9 76.3 185 12/12/17 05/15/18 3800 190 2000 3400 9390 120 150 NA 150 11/27/18 3300 280 2100 5500 11180 80 39 J NA 200 05/21/19 3600 99 1800 2200 7699 130 56 NA 210 11/25/19 4100 31 J 2500 1800 8431 48 J 33 NA 210 J 06/01/20 3100 120 2400 1900 7520 52 J 29 J NA 180 J 12/22/20 3100 40 2600 980 6720 46 J 24 J NA 230 01/11/22 1560 8.8 2650 253 4471.8 12.3 7.31 NA 214 02/15/23 1890 19.4 2570 976 5455.4 19.9 NA NA 179 11/28/23 1310 <22.0 2480 66.3 3856.3 28.8 <50.0 104 284 12/17/24 1400 <10 <10 150 1550.0 18 12 120 300 MW-3 05/20/97 440 1180 BQL 1500 3120 NA NA NA 380 11/18/99 9630 8300 6530 13240 37700 NA NA NA 7020 06/19/02 IA IA IA IA IA IA NA NA IA 01/14/04 NS NS NS NS NS NS NA NA NS 05/25/06 NS NS NS NS NS NS NS NA NS 01/24/07 IAD IAD IAD IAD IAD IAD IAD NA IAD 04/26/07 01/07/97 86 12 34 192 324 NA NA NA 144 11/18/99 56.7 1.4 23.4 177.7 259.2 NA NA NA 2.1 06/19/02 NS NS NS NS NS NS NA NA NS 01/14/04 37.5 0.98 25.2 150.8 214.48 17.2 NA NA 402 05/25/06 48.3 0.71 15.5 144.2 208.71 17.1 3.17 NA BQL 01/24/07 23.1 BQL 19.4 101.4 143.9 11.4 5.08 NA 172 04/26/07 22.4 BQL 15.2 61.1 98.7 10.6 5.56 NA 159 07/26/07 26.4 1.2 22.5 133.1 183.2 10.5 3.49 NA 182 10/25/07 94.1 BQL 21.3 143.1 258.5 30.8 2.16 NA 183 03/19/08 23.7 BQL 19 105.9 149 NA NA NA 202 09/23/08 22.1 0.68 36.3 579.3 638.38 8.23 4.35 NA 175 3/25-26/09 21.7 BQL 20.3 83.9 125.9 NA NA NA 132 12/20-21/11 22.8 <0.5 21.8 79.1 123.7 4.93 2.27 NA 116 06/06/12 24.3 <0.5 22.8 72.1 119.2 7.51 2.25 NA 77 12/19/12 83.8 <1.0 8.1 61.5 153.4 25.4 1.5 13.5 119 05/16/13 30.7 <1.0 18.4 58 107.1 7.7 1.6 19.6 148 12/10/13 36.6 <1.0 16.6 67.2 120.4 12.4 1.4 24.7 172 05/15/14 40.5 <1.0 21.8 50.7 113 8.3 1.5 21.9 148 12/15/14 42 <1.0 12.9 54.8 109.7 15.2 1.6 27.5 178 06/10/15 32.8 <1.0 16.2 46.2 95.2 9.7 1.3 24.3 163 12/09/15 21.5 <1.0 15.3 31.8 68.6 3.4 <1.0 16.8 166 06/29/16 20.2 <1.0 21.3 21.0 62.5 2.2 <1.0 14.5 127 12/12/16 62.9 <1.0 8.5 62.6 134 16.7 1.3 26.3 154 06/07/17 16.5 <1.0 10.9 24.3 51.7 2.4 <1.0 12.9 111 12/12/17 93.9 <1.0 6.1 49.2 149.2 28.2 1.5 22.1 108 05/15/18 33 <0.044 12 26.0 71 8.4 0.97J NA 130 11/27/18 15 <0.044 23 12.0 50 0.49 J 0.97 J NA 100 05/22/19 22 <0.044 22 16.0 60 3.5 J 0.69 J NA 210 11/26/19 17 <0.044 22 16.0 55 4.0 J 0.62 J NA 220 TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS AMW-1 Sampling Ended MW-1 Sampling Ended MW-3R Sampling Ended MW-2S DRY DRY MW-4 25003023.001A PAGE 1 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS05/20/97 7290 570 4100 14190 26150 NA NA NA 1140 11/18/99 FP FP FP FP FP NA NA NA FP 06/19/02 FP FP FP FP FP FP NA NA FP 01/14/04 3510 71.4 1900 884 6365.4 4050 NA NA 2760 05/25/06 5470 173 1840 539.2 8022.2 1450 315 NA 38.6 01/24/07 IAD IAD IAD IAD IAD IAD IAD NA IAD 04/26/07 06/06/12 314 7.15 48.2 59.9 429.25 192 84.8 NA 75.6 12/17/12 8620 52 267 383 9322 3480 796 53.5 561 05/13/13 7630 64.9 578 170 8442.9 2770 657 56.7 443 12/10/13 3860 39.5 255 134.2 4288.7 1410 330 56.5 250 05/12/14 2120 38.6 333 50.6 2542.2 552 124 58.8 299 12/14/14 6900 29.6 183 78.8 7191.4 3100 732 28.1 197 06/09/15 7600 60.4 320 <150 7980.4 2370 607 <50 235 12/07/15 1430 36.1 327 <60.0 1793.1 350 83.4 70.8 484 06/30/16 2500 34.1 198 120 2852.1 815 182 198 239 12/12/16 3110 23.2 68.9 <60 3202.1 1360 351 <20 140 06/07/17 3330 98.0 845 423.1 4696.1 645 123 121 756 12/12/17 1880 22.9 137 <60 2039.9 788 164 29.1 180 05/15/18 2000 47.0 370 79 2496 250 440 NA 440 11/27/18 610 30.0 250 110 1000 29 110 NA 810 05/22/19 1400 39.0 670 230 2339 400 56 NA 470 11/25/19 1300 35.0 380 66 1781 300 52 NA 480 06/01/20 820 33.0 330 80 1263 180 31 J NA 370 12/21/20 450 22.0 200 42.7 714.7 99 14 J NA 320 01/11/22 1240 33.9 345 87.7 1706.6 301 53.5 NA 393 02/14/23 709 31.3 334 137 1211.3 190 NA NA 352 11/29/23 1030 25.7 238 <21.0 1293.7 345 68.8 85.4 413 12/18/24 580 26.0 240 54 900.0 150 24 120 490 11/18/99 3.3 0.8 2.6 14.3 21 NA NA NA 22.6 06/19/02 BQL BQL BQL BQL BQL BQL NA NA BQL 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 BQL BQL BQL BQL BQL 0.73 BQL NA BQL 01/14/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 04/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 07/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 10/25/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/19/08 BQL BQL BQL BQL BQL NA NA NA BQL 09/23/08 BQL BQL BQL BQL BQL BQL BQL NA BQL 3/25-26/09 BQL BQL BQL BQL BQL NA NA NA BQL 12/20-21/11 01/07/97 28.2 1.2 3.5 64 96.9 NA NA NA 6 11/18/99 BQL 2 1.4 9.3 12.7 NA NA NA BQL 06/19/02 2.33 BQL 1.48 11.89 15.7 0.71 NA NA 106 01/14/04 2.28 BQL BQL 7.35 9.63 5.30 NA NA 19.1 05/25/06 37.1 0.5 0.92 68.3 106.82 23.5 1.97 NA BQL 01/24/07 8.65 BQL BQL 6.82 15.47 6.22 BQL NA 9.92 04/26/07 3.25 BQL BQL 5.46 8.71 239 21.5 NA 1.67 07/26/07 40.5 BQL BQL 49.8 90.3 15.5 0.61 NA 72.40 10/25/07 22 BQL BQL 12.1 34.1 22 1.17 NA 20 03/19/08 3.49 BQL BQL 1.74 5.23 NA NA NA 3.50 09/23/08 BQL 1.48 BQL BQL 1.48 4.46 BQL NA 8.14 3/25-26/09 1.39 BQL BQL 1.24 2.63 NA NA NA BQL 12/20-21/11 23.2 <0.5 2.42 2.5 28.1 18.2 6.86 NA 8.25 06/06/12 8.61 <0.5 1.25 1.85 11.71 9.03 1.95 NA 1.15 12/19/12 32.6 <1.0 2.9 4 39.5 26.9 3.7 44.6 15.9 05/16/13 30 <1.0 2.8 3 35.8 25.8 3.9 28.3 14.3 12/11/13 37.9 <1.0 2.1 6.3 46.3 34.8 3.6 44.6 14.7 05/15/14 39.9 <1.0 1.6 8.4 49.9 39.7 3.7 45.2 14.5 12/14/14 40.7 <1.0 1.9 4.0 46.6 30.1 4.1 44.5 12.6 06/09/15 20.3 <1.0 1 2.4 23.7 16.4 1.9 22.7 6.5 12/09/15 28.1 <1.0 1 5.5 34.6 32.1 2.6 35.7 15.7 06/27/16 19.6 <1.0 <1.0 5.7 25.3 24.6 1.6 25.8 7.8 12/12/16 38.9 <1.0 11.8 20.1 70.8 56.6 2.5 42.4 19.5 06/07/17 21.2 <1.0 <1.0 3.9 25.1 28.5 1.4 38.1 7.3 12/12/17 22.7 <1.0 1.7 4.9 29.3 35.9 <1.0 42.3 8.9 05/15/18 9.4 <0.044 0.61J 1.4J 9.4 14 0.74J NA 2.6J 11/28/18 5.7 <0.044 1.1 1.2 J 6.8 6.0 0.42 J NA <0.19 05/22/19 3.6 <0.044 0.69 J <0.15 3.6 3.8 J <0.050 NA 2.0 J 11/26/19 2.2 <0.044 0.69 J 0.71 J 3.6 1.8 J <0.050 NA 2.0 J MW-5S Sampling Ended Sampling Ended AW-6 MW-6 MW-5SR 25003023.001A PAGE 2 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS11/18/99 BQL BQL BQL BQL BQL NA NA NA BQL 06/19/02 BQL BQL BQL BQL BQL 142 NA NA BQL 01/14/04 1.68 3.7 1.24 5.64 12.26 167 NA NA BQL 05/25/06 BQL BQL BQL BQL BQL 160 14 NA BQL 01/24/07 BQL BQL BQL BQL BQL 205 5.48 NA BQL 04/26/07 BQL BQL BQL BQL BQL 239 21.5 NA BQL 07/26/07 BQL BQL BQL BQL BQL 182 23.9 NA BQL 10/25/07 1.38 BQL BQL 2.06 3.44 201 41.3 NA 1.44 03/19/08 0.5 BQL BQL 0.6 1.1 NA NA NA BQL 09/23/08 0.65 BQL BQL 0.6 1.3 128 NA NA BQL 03/25-26/09 BQL BQL BQL BQL BQL NA NA NA 1.8 12/20-21/11 01/07/97 BDL BDL BDL 1.6 1.6 NA NA NA BDL 11/18/99 BQL BQL BQL BQL BQL NA NA NA BQL 06/19/02 BQL BQL BQL BQL BQL BQL NA NA 1.29 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 BQL BQL BQL BQL BQL BQL BQL NA BQL 01/24/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 04/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 07/26/07 BQL 0.53 BQL BQL 0.53 BQL BQL NA BQL 10/25/07 BQL BQL 0.67 1.29 1.96 BQL BQL NA 1.76 03/19/08 BQL BQL BQL BQL BQL NA NA NA BQL 09/23/08 BQL BQL 2.2 1.39 3.6 BQL BQL NA BQL 03/25-26/09 BQL BQL 0.71 2.01 2.72 NA NA NA BQL 12/20-21/11 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 06/06/12 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA 1.71 12/19/12 <1.0 <1.0 <1.0 <1.0 <4.0 <1.0 <1.0 <1.0 <2.0 05/16/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/11/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 05/13/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/14/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/09/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/07/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/27/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/07/17 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/17 01/07/97 25.4 1 1.7 88 116.1 NA NA NA 10.3 11/18/99 6 0.6 1.7 33.9 42 NA NA NA 4.5 06/19/02 24.6 2.32 2.32 104.7 133.9 4.03 NA NA 20.8 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 BQL BQL BQL BQL BQL BQL BQL NA BQL 01/24/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 04/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 07/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 10/25/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/19/08 BQL BQL BQL BQL BQL NA NA NA BQL 09/23/08 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/25-26/09 BQL BQL BQL BQL BQL NA NA NA BQL 12/20-21/11 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 06/06/12 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 12/19/12 <1.0 <1.0 <1.0 <1.0 <4.0 <1.0 <1.0 <1.0 <2.0 05/15/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/10/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 05/13/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/15/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/09/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/07/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/28/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/07/17 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/17 MW-7 MW-8 AW-7 Sampling Ended Sampling Ended Sampling Ended 25003023.001A PAGE 3 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS01/07/97 0.9 2.4 15 68 86.3 NA NA NA 9.2 11/18/99 2 1.5 19.4 72.4 95 NA NA NA 40.8 06/19/02 BQL BQL BQL BQL BQL BQL NA NA BQL 01/14/04 BQL BQL 1.94 3.22 5.16 BQL NA NA 13 05/25/06 IA IA IA IA IA IA IA NA IA 01/24/07 BQL BQL BQL BQL BQL BQL BQL NA 2.81 04/26/07 BQL BQL BQL BQL BQL BQL BQL NA 3.62 07/26/07 BQL BQL 3.96 3.47 7.43 1.16 BQL NA 14 10/25/07 BQL BQL BQL BQL BQL 0.66 BQL NA BQL 03/19/08 BQL BQL BQL BQL BQL NA NA BQL 09/23/08 BQL BQL 1.46 11.85 13.31 BQL BQL NA 8.3 03/25-26/09 BQL BQL 2.11 2.13 4.24 NA NA NA 2.2 12/20-21/11 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 06/06/12 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 12/19/12 <1.0 <1.0 <1.0 <1.0 <4.0 <1.0 <1.0 <1.0 <2.0 05/14/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/09/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 05/14/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/14/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/09/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/08/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/30/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/13/16 NS NS NS NS NS NS NS NS NS 06/07/17 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/17 01/07/97 BDL BDL BDL BDL BDL NA NA NA BDL 11/18/99 1.4 BQL 1.6 5.4 8.4 NA NA NA 3.8 06/19/02 BQL BQL BQL BQL BQL BQL NA NA 2.96 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 BQL BQL BQL BQL BQL BQL BQL NA BQL 01/24/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 04/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 07/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 10/25/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/19/08 BQL BQL BQL BQL BQL NA NA NA BQL 09/23/08 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/25-26/09 BQL BQL BQL BQL BQL NA NA NA BQL 12/20-21/11 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 06/06/12 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 12/19/12 3.2 <1.0 <1.0 <1.0 <4.0 <1.0 <1.0 <1.0 <2.0 05/14/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/09/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 05/14/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/14/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/10/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/08/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/28/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/13/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/08/17 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/17 01/07/97 120 BDL BDL 41 161 NA NA NA 8 11/18/99 9.4 BQL BQL 2 11.4 NA NA NA 2.6 06/19/02 4.59 BQL BQL 0.45est 5.04 141 NA NA 2.81 01/14/04 2.78 BQL BQL BQL 2.78 151 NA NA BQL 05/25/06 0.48 est BQL BQL BQL 0.48 80.3 4.39 NA BQL 01/24/07 36.3 BQL 33.9 1.69 71.89 56.4 221 NA 3.71 04/26/07 BQL BQL BQL BQL BQL 26.6 BQL NA 9.76 07/26/07 BQL BQL BQL BQL BQL 49.1 7.06 NA BQL 10/25/07 BQL BQL BQL BQL BQL 42.3 3.05 NA BQL 03/19/08 BQL BQL BQL BQL BQL NA NA NA BQL 09/23/08 BQL BQL BQL BQL BQL 9.5 1.06 NA BQL 03/25-26/09 BQL BQL BQL BQL BQL NA NA NA BQL 12/20-21/11 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 06/06/12 <0.5 <0.5 <0.5 <1.0 <2.5 20 2.54 NA <0.5 12/18/12 <1.0 <1.0 <1.0 <1.0 <4.0 7.3 <1.0 <1.0 <2.0 05/13/13 <1.0 <1.0 <1.0 <3.0 <6.0 7.5 <1.0 <1.0 <2.0 12/10/13 <1.0 <1.0 <1.0 <3.0 <6.0 4.2 <1.0 <1.0 <2.0 05/12/14 <1.0 <1.0 <1.0 <3.0 <6.0 4.6 <1.0 <1.0 <2.0 12/15/14 <1.0 <1.0 <1.0 <3.0 <6.0 2.8 <1.0 <1.0 <2.0 06/09/15 <1.0 <1.0 <1.0 <3.0 <6.0 2.2 <1.0 <1.0 <2.0 12/07/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/29/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/13/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/08/17 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/17 MW-9 MW-10 MW-11S Sampling Ended Sampling Ended Sampling Ended 25003023.001A PAGE 4 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS01/07/97 5.2 1.5 BDL 2.3 9 NA NA NA BDL 11/18/99 BQL BQL BQL BQL BQL NA NA NA BQL 06/19/02 BQL BQL BQL BQL BQL BQL NA NA BQL 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 05/20/97 8800 2300 850 7300 19250 NA NA NA 450 11/18/99 4100 699 362 4570 9731 NA NA NA 394 06/19/02 FP FP FP FP FP FP NA NA FP 01/14/04 3510 119 174 2395 6198 9330 NA NA 724 05/25/06 3560 71.3 129 1173.6 4933.9 14500 1400 NA 53.9 01/24/07 3750 25.5 68.9 639.4 4483.8 12500 1170 NA 362 04/26/07 3800 95 79.8 913 4888 12308 1235 NA 205 07/26/07 3650 28.9 71 623.5 4373.4 9650 1090 NA 235 10/25/07 NS NS NS NS NS NS NS NA NS 03/19/08 30.6 0.96 3.69 12.08 47.33 NA NA NA 8.05 09/23/08 143 0.83 49.5 1.52 194.85 243 60.3 NA 44.4 03/25-26/09 55.3 BQL 0.58 7.09 62.97 NA NA NA 4.97 12/20-21/11 41.0 1.29 1.27 5.82 49.38 117 22.5 NA 3.38 06/06/12 38.5 <0.5 <0.5 <1.0 38.50 78.7 20.3 NA <0.5 12/19/12 50.1 <1.0 1.4 2.6 54.1 100 23.9 2.3 6.8 05/15/13 5.6 <1.0 <1.0 <3.0 5.6 14.4 2.9 <1.0 <2.0 12/10/13 7.6 <1.0 <1.0 <3.0 7.6 14.3 3.0 <1.0 <2.0 05/15/14 4.6 <1.0 <1.0 <3.0 4.6 11.1 12.5 <1.0 <2.0 12/15/14 7.3 <1.0 <1.0 <3.0 7.3 9.1 1.5 <1.0 <2.0 06/09/15 7.5 1.3 <1.0 <3.0 8.8 16.7 5.1 <1.0 <2.0 12/08/15 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 <1.0 <2.0 06/27/16 1.9 <1.0 <1.0 <3.0 1.9 19.3 6.0 <1.0 <2.0 12/13/16 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 <1.0 <2.0 06/08/17 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <1.0 <1.0 <2.0 12/12/17 05/20/97 BDL 1.3 BDL BDL 1.3 NA NA NA BDL 11/18/99 BQL BQL BQL BQL BQL NA NA NA 1.5 06/19/02 NS NS NS NS NS NS NA NA NS 01/14/04 BQL BQL BQL BQL BQL 6.15 NA NA BQL 05/25/06 BQL BQL BQL BQL BQL 3.62 BQL NA BQL 01/24/07 BQL BQL BQL BQL BQL 17.5 BQL NA BQL 04/26/07 BQL BQL BQL BQL BQL 8.07 BQL NA BQL 07/26/07 BQL BQL BQL BQL BQL 6.67 BQL NA 0.57 10/25/07 BQL BQL BQL BQL BQL 11 BQL NA BQL 03/19/08 BQL BQL BQL BQL BQL NA NA NA BQL 09/23/08 BQL BQL BQL BQL BQL 2.34 BQL NA BQL 03/25-26/09 BQL BQL BQL BQL BQL NA NA NA BQL 12/20-21/11 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 06/06/12 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 12/19/12 6.7 <1.0 <1.0 <1.0 6.7 <1.0 <1.0 <1.0 <1.0 05/16/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/10/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 05/15/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/15/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/09/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/07/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/27/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/16 2.7 <1.0 14.0 5.6 22.3 <1.0 <1.0 <1.0 4.3 06/08/17 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/17 01/07/97 332.5 8 56.5 60 457 NA NA NA 220 11/18/99 33.2 24.6 207 BQL 264.8 NA NA NA 131 06/19/02 4.71 BQL 4.46 BQL 9.17 72.6 NA NA 4.35 01/14/04 11.1 1 38.6 BQL 51 33.5 NA NA 39.2 05/25/06 MW-14 Sampling Ended MW-12S Sampling Ended MW-15 Sampling Ended Sampling Ended MW-13 25003023.001A PAGE 5 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS05/20/97 195 1110 380 1825 3510 NA NA NA 21.2 11/18/99 142 320 479 511 1452 NA NA NA 41.7 06/19/02 NS NS NS NS NS NS NA NA NS 01/14/04 57.2 19 167 106.8 350 725 NA NA 5.06 05/25/06 NS NS NS NS NS NS NS NA NS 01/24/07 1.25 1.29 4.81 4.86 12.21 BQL BQL NA 0.82 04/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 07/26/07 2.33 BQL BQL BQL 2.33 229 15 NA BQL 10/25/07 NS NS NS NS NS NS NS NA NS 03/19/08 BQL 0.61 0.34est BQL 0.95 NA NA NA BQL 09/23/08 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/25-26/09 BQL BQL BQL BQL BQL NA NA NA BQL 12/20-21/11 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 06/06/12 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 12/19/12 <1.0 <1.0 <1.0 <1.0 <4.0 63 2.6 <1.0 <2.0 05/16/13 <1.0 <1.0 <1.0 <3.0 <6.0 4.1 <1.0 <1.0 <2.0 12/10/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 05/15/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/15/14 <1.0 <1.0 <1.0 <3.0 <6.0 45 2.9 <1.0 <2.0 06/09/15 <1.0 <1.0 <1.0 <3.0 <6.0 5.1 <1.0 <1.0 <2.0 12/07/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/27/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/16 <1.0 <1.0 7.2 3.1 10.3 5 <1.0 <1.0 9.1 06/07/17 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/17 01/07/97 0.7 BDL 1.1 3.8 5.6 NA NA NA BDL 11/18/99 BQL BQL 941 1555 2496 NA NA NA 362 06/19/02 FP FP FP FP FP FP NA NA FP 01/14/04 51.8 298 3710 13990 18049.8 BQL NA NA 3250 05/25/06 711 358 4540 9350 14959 986 164 NA 41.8 01/24/07 42.6 39.9 1150 3063 4295.5 31.3 2.95 NA 460 04/26/07 219 103 2147 3927 6396 499 59.9 NA 531 07/26/07 398 205 4110 7000 11713 757 86.5 NA 598 10/25/07 947 142 5120 9920 16129 2920 309 NA 1020 03/19/08 459 379 5550 10680 17068 NA NA NA 815 09/23/08 390 120 4540 9240 14290 964 108 NA 925 03/25-26/09 320 84.2 2390 4500 7294.2 NA NA NA 772 12/20-21/11 147 17.4 1500 1603.77 3268.17 272 36.8 NA 466 06/06/12 159 37.4 2660 2574.99 5431.39 268 57.6 NA 369 12/18/12 930 54.3 2630 1911.1 5525.4 1510 248 93.1 596 05/15/13 1820 55.7 2330 1840 6045.7 2050 346 87.3 576 12/09/13 1470 51.2 2370 1791.2 5682.4 2070 354 102 563 05/14/14 1120 88.7 1590 1180 3978.7 1540 259 66.8 463 12/15/14 990 49.1 2430 1460 4929.1 1910 331 105 664 06/09/15 1370 35.9 2100 1150 4655.9 1490 280 92 562 12/08/15 5370 61.6 2660 1410 9501.6 3470 830 110 713 06/30/16 2070 29.6 1730 772 4601.6 1600 350 69.7 447 12/12/16 3720 31.3 2420 935 7106.3 2370 580 85.8 651 06/07/17 6370 77.1 4060 1560 12067.1 3880 806 159 1130 12/12/17 2570 <20.0 2450 523 5543 1850 405 96.7 598 05/15/18 4700 48 4000 1300 10048 2700 600 NA 830 11/28/18 4900 37 2900 830 8667 3100 580 NA 600 05/22/19 880 11 1200 350 2441 750 120 NA 360 11/26/19 1900 <4.4 1800 450 4150 2200 330 J NA 450 J 06/02/20 4100 39 J 2300 570 7009 3500 630 NA 420 J 12/22/20 2500 15 2000 330 4845 2300 370 NA 390 01/12/22 4100 19.9 2350 267 6736.9 4210 670 NA 484 02/14/23 4210 25.5 J 2910 350 7470 4090 NA NA 588 11/28/23 2800 11.8 2610 209 5631 3590 505 97.1 555 12/17/24 2600 <25 1500 83 4183 3100 430 51 350 Sampling Ended MW-16 MW-17 25003023.001A PAGE 6 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS05/20/97 3100 542.0 588 4100 8330 NA NA NA 200 11/18/99 2500 367 728 3850 7445 NA NA NA 291 06/19/02 NA NA NA NA NA NA NA NA NA 01/14/04 2210 1940 1530 4200 9880 241 NA NA 515 05/25/06 104 5.75 8.31 76.2 194.26 29.9 10.7 NA BQL 01/24/07 380 30.8 53.5 196.2 660.5 15.6 20.3 NA 101 04/26/07 136 20.2 44.6 96.6 297.4 14 BQL NA 289 07/26/07 499 56.2 155 263.8 974 31.9 224 NA 137 10/25/07 578 53.8 144 285 1060.8 47.4 14.8 NA 234 03/19/08 535 379 147 69 1130 NA NA NA 184 09/23/08 484 31 224 38.9 777.9 32.2 BQL NA 191 03/25-26/09 449 53 140 182.2 824.2 NA NA NA 154 12/20-21/11 219 16.7 387 67.7 690.4 <0.5 20.4 NA 121 06/06/12 176 22.6 310 106 614.6 8.86 13.8 NA 180 12/19/12 183 13.6 273 48 517.8 5 <1.0 27.1 55.8 05/14/13 243 32.3 383 282 940.3 <2.0 <2.0 32.9 113 12/09/13 144 15 228 151.5 538.5 <2.5 <2.5 19.5 52.6 05/13/14 176 19.8 264 236.6 696.4 <2.0 <2.0 30.4 96.8 12/15/14 246 24.4 417 311.0 998.4 <2.5 <2.5 30.6 89.2 06/09/15 169 25.7 291 324 809.7 <4.0 <4.0 27.4 80.8 12/07/15 134 18.4 249 268 668.9 <2.0 <2.0 32.6 116.0 06/28/16 52.4 6.1 115 65 238.1 <1.0 <1.0 19.2 115.0 12/12/16 51.5 5.9 137 25 219.0 <1.0 <1.0 20.8 27.8 06/08/17 48.3 7.3 77.9 74.2 207.7 <1.0 <1.0 24.9 55.6 12/12/17 27.3 3.0 45.6 2.1 78.0 <1.0 <1.0 17.4 12.9 05/15/18 35 5.0 46.0 50.0 136.0 <0.042 <0.050 NA 41.0 11/27/18 20 2.6 34.0 6.0 62.6 <0.042 <0.050 NA 17.0 05/22/19 11 1.0 25.0 <0.15 37.0 <0.042 <0.050 NA 9.2 11/26/19 26 2.2 60.0 2.1 J 90.3 <0.042 0.30 J NA 22.0 05/20/97 3140 4240 3380 10940 21700 NA NA NA 280 11/18/99 2330 7800 3390 9780 23300 NA NA NA 1100 06/19/02 FP FP FP FP FP FP NA NA FP 01/14/04 1856 3150 3130 9310 17446 BQL NA NA 1530 05/25/06 1160 5920 3250 10600 20930 BQL 214 NA 3.85 01/24/07 648 923 4590 11340 17501 99.9 27.3 NA 278 04/26/07 343 603 2682 6640 10268 BQL BQL NA 289 07/26/07 445 56.2 2610 6110 9221.2 BQL BQL NA 254 10/25/07 484 1180 4910 10970 17544 220 41.2 NA 294 03/19/08 568 1320 3810 8750 14448 NA NA NA 402 09/23/08 428 883 4560 10420 16291 BQL BQL NA 500 03/25-26/09 418 1020 3040 7060 11538 NA NA NA 649 12/20-21/11 444 301 2960 5160 8865 <0.5 189 NA 440 06/06/12 334 260 3220 5250 9064 123 89.2 NA 134 12/19/12 265 166 2420 3640 6491 <10 <10 62.9 264 05/14/13 274 173 2100 3460 6007 <1.0 <1.0 80.4 151 12/09/13 291 112 1930 2870 5203 <20 <20 53.6 192 05/13/14 132 52 1080 1705 2969 <20 <20 40.3 120 12/15/14 161 61.3 1710 2482 4414.3 <10 <10 53.8 184 06/09/15 144 41.1 1170 1523 2878.1 <12.5 <12.5 38.9 124 12/07/15 59.8 35.5 1180 1599 2874.3 <12.5 <12.5 46.1 134 06/28/16 149 28.3 1190 1314 2681.3 <10.0 <10.0 38.6 115 12/12/16 162 31.7 1430 1643 3266.7 <10.0 <10.0 41.0 156 06/08/17 329 42.2 2780 2510 5661.2 <20.0 <20.0 92.7 318 12/12/17 160 26 1440 1308 2934 <10.0 <10.0 41.4 154 05/15/18 210 32 2700 2100 5042 <0.42 <0.50 NA 200 11/27/18 240 25 2200 1700 4165 <0.42 <0.50 NA 170 05/22/19 280 18 1600 1200 3098 <0.042 <0.050 NA 250 11/26/19 370 19 2100 1500 3989 <0.42 <0.50 NA 170 MW-19 MW-20 25003023.001A PAGE 7 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS05/20/97 2900 16000 3200 10000 32100 NA NA NA 130 11/18/99 FP FP FP FP FP NA NA NA FP 06/19/02 FP FP FP FP FP FP NA NA FP 01/14/04 4270 3260 2760 9260 19550 BQL NA NA 2600 05/25/06 21100 27200 149000 512000 709300 BQL 3850 NA 6.86 01/24/07 4260 1290 4130 14840 24520 613 65.4 NA 589 04/26/07 2885 718 3102 8675 15380 BQL BQL NA 388 07/26/07 4780 1050 3280 9340 18450 BQL BQL NA 275 10/25/07 4840 1140 3570 9410 18960 128 36.7 NA 398 03/19/08 6080 1530 3660 10050 21320 NA NA NA 395 09/23/08 4490 1040 3890 10710 20130 BQL 406 NA 455 03/25-26/09 4130 1040 3400 9160 17730 NA NA NA 435 12/20-21/11 3290 433 2570 7220 13513 <0.5 72.6 NA 344 06/06/12 4130 646 3730 10100 18606 156 152 NA 203 12/17/12 3500 445 2480 7140 13565 <5.0 <5.0 55.0 244 05/14/13 3070 397 2320 6490 12277 <25 <25 59.7 249 12/09/13 2940 340 1910 5410 10600 <25 <25 50.9 215 05/13/14 3320 355 2110 6250 12035 <25 <25 63 255 12/15/14 3680 350 2200 6340 12570 <25 <25 61 254 06/10/15 2700 247 1720 4760 9427 <25 <25 47.5 201 12/08/15 3650 350 2180 6460 12640 <25 <25 66.2 269 06/28/16 3320 294 2210 6110 11934 <25 <25 62.3 252 12/13/16 3810 311 2240 6260 12621 <25 <25 67.3 271 06/08/17 6790 492 4180 11050 22512 <40 <40 119 490 12/12/17 3490 252 2260 6000 12002 <20.0 <20.0 63 262 05/15/18 4900 280 3400 8800 17380 <0.42 4.0J NA 270 11/27/18 3700 210 2800 7400 14110 <0.42 <0.50 NA 270 05/21/19 3700 190 2700 6700 13290 <0.42 3.4 J NA 270 11/25/19 2600 140 2300 5600 10640 <4.2 <5.0 NA 210 J 06/01/20 3600 170 2500 6200 12470 <4.2 <5.0 NA 230 J 12/21/20 2900 120 2000 4590 9610 <4.2 <5.0 NA 160 J 01/11/22 4210 129 2680 5950 12969 <1.4 <5.00 NA 237 02/14/23 3210 92.7 2540 5170 11012.7 <1.40 NA NA 236 11/28/23 4500 108.0 2780 5730 13118 <71.0 <50.0 76 385 12/17/24 4200 75 2700 4900 11875 <25 <25 76.0 290 01/07/97 BDL BDL BDL BDL BDL NA NA NA 1.3 11/18/99 BQL BQL BQL BQL BQL NA NA NA BQL 06/19/02 NS NS NS NS NS NS NA NA NS 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 BQL BQL BQL BQL BQL BQL BQL NA BQL 01/24/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 04/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 07/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 10/25/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/19/08 BQL BQL BQL BQL BQL NA NA NA BQL 09/23/08 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/25-26/09 BQL BQL BQL BQL BQL NA NA NA BQL 12/20-21/11 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 06/06/12 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 12/18/12 <1.0 <1.0 <1.0 <1.0 <4.0 <1.0 <1.0 <1.0 <2.0 05/14/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/09/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 05/13/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/14/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/09/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/08/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/28/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/07/17 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/17 MW-22 Sampling Ended MW-21 25003023.001A PAGE 8 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS01/07/97 BDL BDL BDL BDL BDL NA NA NA BDL 11/18/99 BQL BQL BQL BQL BQL NA NA NA BQL 06/19/02 BQL BQL BQL 11.02 11.02 0.65 NA NA 4.59 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 NS NS NS NS NS NS NS NA NS 01/24/07 IA IA IA IA IA IA IA NA IA 04/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 07/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 10/25/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/19/08 BQL BQL BQL BQL BQL NA NA NA BQL 09/23/08 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/25-26/09 BQL BQL BQL BQL BQL NA NA NA BQL 12/20-21/11 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 06/06/12 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 12/19/12 <1.0 <1.0 <1.0 <1.0 <4.0 <1.0 <1.0 <1.0 <2.0 05/15/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/09/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 05/13/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/15/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/10/15 NS NS NS NS NS NS NS NS NS 12/09/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/28/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/16 <1.0 <1.0 4.4 4.2 8.6 <1.0 <1.0 <1.0 <2.0 06/08/17 <1.0 <1.0 4.4 4.2 8.6 <1.0 <1.0 <1.0 <2.0 12/12/17 01/07/97 75 215 2100 2525 4915 NA NA NA 380 11/18/99 173 375 729 1464 2741 NA NA NA 849 06/19/02 NS NS NS NS NS NS NA NA NS 01/14/04 BQL BQL 54.4 59.59 113.99 2.23 NA NA 93.5 05/25/06 3.52 100 1020 1116 2239.52 BQL 14.8 NA 57.2 01/24/07 2.87 3.43 263 159.09 428.39 1.61 BQL NA 106 04/26/07 BQL BQL 52.8 40 92.8 BQL BQL NA 41.2 07/26/07 BQL BQL 234 139.38 373.38 BQL BQL NA 10 10/25/07 2.76 4.10 573 278.79 858.65 47.6 1.32 NA 155 03/19/08 BQL BQL 477 242 719 NA NA NA 76.4 09/23/08 BQL BQL 431 221.84 652.84 BQL BQL NA 84 03/25-26/09 1.41 3.87 304 204.8 514.08 NA NA NA 104 12/20-21/11 2.65 1.89 537 326.03 867.57 <0.5 7.83 NA 117 06/06/12 1.05 4.66 1240 728.1 1973.81 44.1 12.8 NA 161 12/18/12 <5.0 <5.0 752 449 1201 <5.0 <5.0 48 187 05/14/13 <5.0 <5.0 454 284 738 <5.0 <5.0 35.9 124 12/09/13 <4.0 <4.0 284 181 465 <4.0 <4.0 25.2 77 05/14/14 <2.0 <2.0 226 139 365 <2.0 <2.0 19.5 57.9 12/14/14 <2.0 <2.0 799 473 1272 <2.0 <2.0 49.8 172.0 06/09/15 <5.0 <5.0 678 426 1104 <5.0 <5.0 43.3 162 12/08/15 <2.5 <2.5 326 225 551 <2.5 <2.5 28.9 90 06/28/16 <2.0 <2.0 308 192 500 <2.0 <2.0 24.0 55.1 12/13/16 <5.0 <5.0 655 386 1041 <5.0 <5.0 30.2 117.0 06/08/17 <4.0 <4.0 428 271 699 <4.0 <4.0 23.8 84.4 12/12/17 MW-23 MW-24 Sampling Ended Sampling Ended 25003023.001A PAGE 9 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS01/07/97 BDL BDL BDL BDL BDL NA NA NA BDL 11/18/99 BQL BQL BQL BQL BQL NA NA NA BQL 06/19/02 BQL BQL BQL BQL BQL BQL NA NA BQL 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 01/07/97 BDL 0.6 BDL BDL 0.6 NA NA NA 1 11/18/99 BQL BQL BQL BQL BQL NA NA NA BQL 06/19/02 NS NS NS NS BQL NS NA NA NS 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 06/19/02 950 36.3 67.90 411 1465 146 NA NA 594 01/14/04 1420 49.8 78.4 254 1802 342 NA NA 539 05/25/06 3390 168 265 632 4455 542 112 NA 72.9 01/24/07 1320 51.1 50 206.5 1627.6 280 34.1 NA 324 04/26/07 1457 55.6 64.4 213.6 1790.6 370 41.7 NA 310 07/26/07 1530 134 78.2 279 2021 438 38.8 NA 308 10/25/07 2540 107 84.7 274 3006 545 55.3 NA 49.6 03/19/08 895 72.6 42.9 201.1 1211.6 NA NA NA 236 09/23/08 1860 115 421 334 2730 422 41.3 NA 379 03/25-26/09 1340 67.4 57.7 251.6 1716.7 NA NA NA 504 12/20-21/11 1060 88 77.6 258 1484 267 69.2 NA 227 06/06/12 1780 80.4 55.2 200.4 2116 308 29 NA 249 12/19/12 2810 195 61.6 201.8 3268.4 333 24.4 11.3 309 05/16/13 2830 157 54.6 201.4 3243 371 33.2 <20 319 12/10/13 2600 171 75.4 346 3192 277 81.0 <20 312 05/15/14 3220 181 53.1 197.6 3651.7 321 41.2 <20 326 12/15/14 3840 198 67.6 208.6 4314.2 332 68.2 <25 357 06/10/15 3140 184 50.8 178.9 3553.7 279 27.3 <25 275 12/08/15 4000 241 68.0 220.9 4529.9 261 27.1 <25 370 06/29/16 3730 278 68.7 209 4285.7 228 <25 <25 324 12/12/16 4010 323 67.1 194.8 4594.9 215 <25 <25 343 06/08/17 4680 361 74.2 234 5349.2 203 <50 <50 360 12/12/17 5070 640 71.0 231 6012 193 <50 <50 316 05/15/18 6800 590 100 320 7810 210 27.0J NA 440 11/27/18 4900 550 69 230 5749 160 16 J NA 340 05/22/19 3600 640 52 180 4472 120 10 J NA 290 11/26/19 3000 470 51 170 3691 89 8.0 J NA 250 06/02/20 2800 560 59 J 180 J 3599 86 J <5.0 NA 190 J 12/22/20 2700 280 58 185 3223 83 8.2 J NA 230 01/12/22 3340 193 72.6 265 3870.6 84 7.3 NA 323 02/15/23 3400 25.3 75.5 197 3697.8 75.5 NA NA 301 11/29/23 3300 13.5 75.2 200 3588.7 78.6 7.5 12.4 331 12/18/24 2100 <10 55 F1 140 F1 2295.0 70 F1 <10 <10 250 F1 06/19/02 BQL BQL BQL BQL BQL BQL NA NA BQL 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 BQL BQL BQL BQL BQL BQL BQL NA BQL 01/24/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 04/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 07/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 10/25/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/19/08 BQL BQL BQL BQL BQL NA NA NA BQL 09/23/08 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/25-26/09 BQL BQL BQL BQL BQL NA NA NA BQL 12/20-21/11 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 06/06/12 <0.5 <0.5 <0.5 <1.0 <2.5 <0.5 <0.5 NA <0.5 01/02/13 <1.0 <1.0 <1.0 <3.0 <4.0 <1.0 <1.0 <1.0 <2.0 05/15/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/09/13 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 05/14/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/14/14 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/09/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/08/15 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 06/29/16 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/13/16 <1.0 <1.0 2.5 <3.0 2.5 <1.0 <1.0 <1.0 <2.0 06/08/17 <1.0 <1.0 <1.0 <3.0 <6.0 <1.0 <1.0 <1.0 <2.0 12/12/17 11/18/99 BQL BQL BQL BQL BQL NA NA NA BQL 06/19/02 BQL BQL BQL BQL BQL BQL NA NA 5.29 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 BQL BQL BQL BQL BQL BQL BQL NA BQL 01/24/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 04/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 07/26/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 10/25/07 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/19/08 BQL BQL BQL 15 15 NA NA NA 9.6 09/23/08 BQL BQL BQL BQL BQL BQL BQL NA BQL 03/25-26/09 BQL BQL BQL BQL BQL NA NA NA BQL 12/20-21/11 MW-27 MW-28 MW-26 MW-25 Sampling Ended Sampling Ended Sampling Ended Sampling Ended MW-33 25003023.001A PAGE 10 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS01/07/97 BDL BDL 0.8 17 17.8 NA NA NA 11 11/18/99 BQL BQL BQL 13.9 13.9 NA NA NA 31 06/19/02 BQL BQL BQL 2.15 2.15 BQL NA NA 4.6 01/14/04 BQL BQL BQL 33.82 33.82 BQL NA NA 53.5 05/25/06 BQL BQL 0.56 45.58 46.14 1.62 BQL NA BQL 01/24/07 BQL BQL BQL 13.18 13.18 BQL BQL NA BQL 04/24/07 BQL BQL BQL 25.25 25.25 BQL BQL NA 7.1 07/26/07 BQL BQL BQL 61.1 61.1 BQL BQL NA 107 10/25/07 BQL BQL BQL 40.24 40.24 BQL BQL NA 48 03/19/08 BQL BQL BQL BQL BQL NA NA NA BQL 09/23/08 BQL BQL 4.42 30.99 35.41 BQL BQL NA 34.8 03/25-26/09 BQL BQL BQL 10.74 10.74 NA NA NA 18.8 12/20-21/11 <0.5 <0.5 <0.5 11.11 11.11 <0.5 <0.5 NA 10.1 06/06/12 <0.5 <0.5 <0.5 18.26 18.26 <0.5 <0.5 NA 33.7 12/18/12 <1.0 <1.0 <1.0 9.9 9.9 <1.0 <1.0 <1.0 16.6 05/15/13 <1.0 <1.0 5 34.1 39.1 <1.0 <1.0 <1.0 40.2 12/11/13 <1.0 <1.0 <1.0 45.5 45.5 <1.0 <1.0 <1.0 64.7 05/14/14 1.8 <1.0 <1.0 51.1 52.9 <1.0 <1.0 <1.0 58.2 12/15/14 <1.0 <1.0 <1.0 37.1 37.1 <1.0 <1.0 <1.0 66.1 06/10/15 <1.0 <1.0 <1.0 13.2 13.1 <1.0 <1.0 <1.0 23.1 12/09/15 <1.0 <1.0 <1.0 15.1 15.1 <1.0 <1.0 <1.0 29.1 06/30/16 <1.0 <1.0 <1.0 40.6 40.6 <1.0 <1.0 <1.0 56.6 12/13/16 <1.0 <1.0 <1.0 35.2 35.2 <1.0 <1.0 <1.0 78.2 06/08/17 <1.0 <1.0 <1.0 26.3 26.3 <1.0 <1.0 <1.0 41.3 12/12/17 06/02/20 <0.048 <0.044 <0.061 3.3 3.3 <0.042 <0.050 NA 9.1 12/22/20 <0.048 <0.044 <0.061 0.164 0.164 <0.042 <0.050 NA 6.2 01/12/22 <0.180 <0.220 <0.170 5.13 5.13 <0.140 <0.500 NA 26.6 02/15/23 0.261 J <0.220 <0.170 2.09 2.09 <0.140 NA NA 17.3 11/29/23 IAD IAD IAD IAD IAD IAD IAD IAD IAD 05/20/97 BDL BDL BDL BDL BDL NA NA NA BDL 11/18/99 NS NS NS NS NS NA NA NA NS 06/19/02 58.7 6.48 1.9 10.25 77.33 52.1 NA NA 12.1 01/14/04 5180 8040 1820 5660 20700 3150 NA NA 173 05/25/06 480 55.2 17.9 68.8 621.9 286 217 NA 29.4 01/24/07 1240 73.7 66.9 313 1693.6 611 259 NA 173 04/26/07 906 7.85 41.4 44.9 1000.15 741 261 NA 257 07/26/07 2000 502 167 693 3362 409 372 NA 208 10/25/07 2220 932 283 1239 4674 626 426 NA 265 03/19/08 2900 657 175 1146 4878 NA NA NA 292 09/23/08 1900 218 224 686 3028 808 383 NA 374 03/25-26/09 1420 47.1 63.6 415 1945.7 NA NA NA 354 12/20-21/11 2380 148 508 786 3822 913 508 NA 262 06/06/12 3400 298 218 1236 5152 1300 750 NA 71 12/17/12 1230 26.5 110 343 1709.5 717 321 29.8 237 05/13/13 931 <10 30.5 172.4 1133.9 698 305 14.5 239 12/10/13 919 14.6 51.1 235 1205.1 542 270 18.1 196 05/12/14 494 <5.0 5.4 108.2 607.6 417 160 10 170 12/15/14 1570 23.2 111.0 361 2065.2 711 389 25.3 302 06/09/15 808 <12.5 34.5 179.4 1022 519 252 16.7 203 12/07/15 918 <12.5 59.3 195.6 1172.9 491 260 18.6 210 06/30/16 403 3.3 22.4 83.7 512.4 304 148 22.4 96 12/13/16 1040 12.6 79.3 207.8 1339.7 526 309 20.2 197 06/07/17 936 7.8 51.4 165.3 1160.5 534 241 21.3 219 12/12/17 1370 22.7 128.0 274.5 1795.2 626 343 25.1 230 05/15/18 780 5.0 41.0 120 946.0 530 210 NA 190 11/27/18 620 5.8 63.0 140 828.8 400 200 NA 300 05/21/19 310 0.75 J 1.0 34 345.0 290 130 NA 66 11/25/19 1700 14.0 160.0 220 2094.0 750 390 NA 270 06/01/20 280 <0.44 4.2 J 30 314.0 310 160 NA 100 12/22/20 580 2.8 40.0 70 693.0 450 240 NA 340 01/11/22 1680 10.6 118.0 185 1993.6 821 419.0 NA 213 02/15/23 1018.9 E 10.1 95.5 112 1236.5 741 NA NA 165 11/28/23 1640 <22.0 181.0 231 2052.0 1110 536.0 30.3 J 209 12/17/24 1300 <25 90 <25 1390 1100 460 <25 150 05/20/97 1.8 1 6.6 9.4 NA NA NA BDL 11/18/99 27.8 15.6 8 43.5 94.9 NA NA NA 7.1 06/19/02 5.82 1.48 1.82 5.27 14.39 64 NA NA 3.56 01/14/04 78.1 16.3 9.24 53.6 157.24 195 NA NA 32.3 05/25/06 51.9 1.54 3.8 9.83 67.07 521 79.2 NA BQL 01/24/07 IAD IAD IAD IAD IAD IAD IAD NA IAD 04/26/07 MW-34 MW-2D MW-5D DEEP MONITORING WELLS Sampling Ended Sampling Ended 25003023.001A PAGE 11 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS06/06/12 0.83 <0.5 1.24 <1.0 2.07 56.1 6.09 NA <0.5 12/17/12 2.7 <1.0 <1.0 <1.0 2.7 1660 187 <1.0 <2.0 05/13/13 <20 <20 30.3 27.8 58.1 1900 217 <20 67.2 12/10/13 <10 <10 <10 <10 <40 1630 194 <10 <20 05/12/14 <10 <10 <10 <30 <60 1800 204 <10 <20 12/15/14 <12.5 <12.5 <12.5 <37.5 <75 1760 207 <12.5 <25 06/09/15 <12.5 <12.5 <12.5 <37.5 <75 1580 184 <12.5 <25 12/07/15 <12.5 <12.5 <12.5 <37.5 <75 1530 168 <12.5 <25 06/27/16 <10 <10 <10 <30 <60 1340 159 <10 <20 12/12/16 <10 <10 <10 <30 <60 1300 170 <10 <20 06/07/17 <10 <10 <10 <30 <60 1620 171 <10 <20 12/12/17 <10 <10 <10 <30 <60 1160 163 <10 <20 05/15/18 <0.48 <0.44 <0.61 <1.5 <3.03 1700 190 NA <1.9 11/27/18 <0.48 <0.44 <0.61 <1.5 <3.03 1200 140 NA 8.8 J 05/21/19 0.5 <0.044 <0.061 <0.15 0.5 1400 160 NA 0.65 J 11/25/19 5.3 <0.44 <0.61 2.3 J 7.6 1300 170 NA 14 J 06/01/20 <4.8 <4.4 <6.1 <15 <15 1200 170 J NA 21 J 12/21/20 <0.48 <0.44 <0.61 <1.64 <3.17 1100 150 NA <1.9 01/11/22 3.85 <0.22 2.62 4.33 10.8 1010 148 NA 3.35 02/14/23 0.354 J <0.220 <0.170 <0.21 0.354 680 NA NA <0.470 11/29/23 0.355 <0.220 <0.170 <0.21 0.355 615 105 <0.18 <0.470 12/18/24 <0.50 <0.50 <0.50 <0.50 <0.50 730 110 <0.50 <0.50 05/20/97 1.7 BDL BDL BDL 1.7 NA NA NA BDL 11/18/99 21.3 BQL BQL 10.7 21.3 NA NA NA 16.3 06/19/02 24.8 BQL 2.6 2.11 24.8 7.32 NA NA 18.2 01/14/04 19.3 BQL 8.73 BQL 19.3 9.21 NA NA 10.8 05/25/06 47.3 BQL 10.1 BQL 47.3 34.8 136 NA BQL 01/24/07 BQL BQL BQL BQL BQL 45.8 4.22 NA 1.14 04/26/07 46.4 BQL BQL 2.76 49.16 60.8 190 NA 1.67 07/26/07 39.2 BQL BQL 21.17 60.37 63.6 237 NA 2.64 10/25/07 122 BQL 31.8 2.77 156.57 68.2 241 NA 20.2 03/19/08 3.75 BQL BQL BQL 3.75 NA NA NA BQL 09/23/08 83.5 BQL 49.5 1.52 134.52 93.6 239 NA 16.2 03/25-26/09 220 BQL 38.6 7.7 266.3 NA NA NA 8.93 12/20-21/11 247 <0.5 18.3 27.4 292.7 386 275 NA 53 06/06/12 24.3 <0.5 19.1 2.44 45.84 300 276 NA 15.2 12/18/12 172 <10 <10 12.9 184.9 288 222 <10 33.9 05/13/13 192 <2.0 <2.0 12.8 204.8 354 290 6.9 29.4 12/10/13 170 <2.5 <2.5 15.2 185.2 295 223 8 30.3 05/12/14 191 <2.5 <2.5 13.8 204.8 370 235 7.5 28.4 12/15/14 200 <2.5 <2.5 9.8 209.8 357 251 8.0 32.5 06/09/15 133 <4.0 <4.0 7.4 140.4 349 185 5.6 19.4 12/07/15 114 <4.0 <4.0 9.0 123.0 321 172 5.8 21.5 06/30/16 117 15.4 <2.0 4.7 137.1 373 182 5.0 15.4 12/13/16 121 <2.5 <2.5 5.3 126.3 365 178 5.4 18.4 06/08/17 99.8 <2.0 <2.0 6.3 106.1 382 132 <2.0 16.0 12/12/17 93.0 <2.0 <2.0 3.3 96.3 350 144 6.0 13.4 05/15/18 100.0 <0.044 <0.061 3.5 103.5 400 150 NA 12.0 11/27/18 82.0 <0.044 <0.061 3.0 85.0 390 100 NA 12.0 05/23/19 80.0 <0.044 <0.061 3.2 83.2 460 110 NA 12.0 11/25/19 68.0 <0.044 <0.061 2.7 J 70.7 400 92 NA 9.4 06/02/20 48.0 <0.044 <0.061 1.9 J 49.9 360 81 NA 5.8 12/22/20 13.0 <0.044 <0.061 0.86 J 13.9 220 36 NA 3.2 J 01/12/22 27.7 <0.220 <0.170 1.3 29.0 280 45 NA 5.2 02/15/23 17.6 <0.220 <0.170 0.851 18.451 190 NA NA 3.69 11/29/23 21.8 <0.220 <0.170 0.613 22.413 175 33 2.2 3.69 12/18/24 7.6 <0.50 <0.50 <0.50 7.600 100 9 1.1 1.60 05/20/97 BDL BDL BDL BDL BDL NA NA NA BDL 11/18/99 1.5 BQL BQL BQL 1.5 NA NA NA BQL 06/19/02 3.65 BQL BQL BQL 3.65 0.48est NA NA 1.34 01/14/04 BQL BQL BQL BQL BQL BQL NA NA BQL 05/25/06 MW-12D Sampling Ended MW-5DR MW-11D 25003023.001A PAGE 12 OF 13 Volatile Organic Compounds by EPA Method 602 Sample ID Sample Date Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE IPE/DIPE Isopropylbenzene Naphthalene TABLE 7: HISTORICAL GROUNDWATER ANALYTICAL RESULTS SHALLOW MONITORING WELLS12/15/14 <1.0 1.9 <1.0 <3.0 1.9 26.6 5.5 <1.0 <2.0 06/09/15 2.1 <1.0 <1.0 <3.0 2.1 14.4 3.1 <1.0 <2.0 12/07/15 <1.0 <1.0 <1.0 <3.0 <6.0 5.5 <1.0 <1.0 <2.0 06/28/16 1 <1.0 <1.0 <3.0 1 4.9 <1.0 <1.0 <2.0 12/12/16 <1.0 <1.0 <1.0 <3.0 <6.0 2.6 <1.0 <1.0 <2.0 06/07/17 <1.0 <1.0 <1.0 <3.0 <6.0 2 <1.0 <1.0 <2.0 02/09/22 <0.180 <0.220 <0.170 <0.21 <0.78 1.06 <0.500 NA <0.470 02/14/23 0.799 <0.220 0.261 J <0.21 0.799 0.943 NA NA <0.470 11/28/23 6.83 0.256 1.04 1.77 9.896 1.200 0.527 <0.18 0.727 12/17/24 1.4 <0.50 <0.50 <0.50 1.4 1.0 <0.50 <0.50 <0.50 03/25-26/09 12300 25 61.8 1577 13963.8 NA NA NA 308 12/20-21/11 14700 20.7 209 1164 16093.7 <0.5 276 NA 9120 06/06/12 24600 21.5 224 1362 26207.5 10.2 238 NA 166 12/17/12 13100 6.8 186 862 14154.8 2.4 198 46.3 126 05/13/13 14400 <100 177 769 15346 <100 197 <100 <200 12/10/13 12700 <100 211 663 13574 <100 154 <100 <200 05/12/14 14300 <100 174 436 14910 <100 159 <100 <200 12/15/14 11700 <100 257 441 12398 <100 144 <100 <200 06/10/15 9980 <100 206 354 10540 <100 118 <100 <200 12/08/15 7020 <100 220 383 7623 <100 106 <100 <200 06/28/16 6390 <50 212 299 6901 <50 108 212 107 12/13/16 6430 <50 249 272 6951 <50 110 <50 120 06/08/17 4730 <50 195 211 5136 <50 74.1 <50 108 12/12/17 5900 <50 269 256 6425 <50 103 <50 132 05/15/18 5400 <0.44 230 280 5910 <0.42 110 NA 93 11/27/18 5000 <0.44 93 210 5303 <0.42 93 NA 88 05/21/19 7100 <0.44 150 280 7530 <0.42 99 NA 110 11/25/19 6000 <0.44 360 210 6570 <0.42 130 NA 110 06/01/20 4900 <4.4 310 200 J 5410 <4.2 140 J NA 85 J 12/21/20 4500 <4.4 310 193 5003 <4.2 130 NA 79 02/09/22 2970 0.525 284 139 3393.5 <0.140 107 NA 74 02/14/23 2550 0.444 J 316 127 2993 4.44 NA NA 61.5 11/28/23 1710 <22.0 328 124 2162 <14.0 84.4 21.3 J 123.0 12/17/24 1800 <10 420 97 2317 <10 87 25 F1 63 NOTES: 1) Concentrations expressed in micrograms per liter (µg/L) 8) NS = Not Sampled 2) FP = Free product 9) Sample results prior to December 2015 were collected/reported by others 3) NA = Not analyzed 10) IPE/DIPE = Isopropylether/Diisopropylether 4) BQL = Below Quanitation Limit 11) MTBE = Methyl tert-butyl ether 5) BDL = Below Detection Limit 12) Total BTEX = Sum of benzene, toluene, ethylbenzene and xylenes concentrations 6) IA = Inaccessible 13) J = Detected but below the Reporting Limit; result is estimated correction 7) IAD = Inaccessible or Destroyed 14) E = Result above calibration range 15) F1 = MS and/or MSD recovery exceeds control limits MW-21D MW-17D 25003023.001A PAGE 13 OF 13 25003023.001A | RAL25R176846 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com FIGURES CA D F I L E : W: \ E n v i r o \ C l i e n t P r o p o s a l A n d P r o j e c t F i l e s \ C R H A m e r i c a s \ P r o j e c t s \ 2 0 2 3 4 0 0 1 . 0 0 1 A - C R H G N C 2 0 2 2 M o n i t o r i n g \ 2 . 8 T e c h n i c a l C A D D F i g u r e s \ M o n i t o r i n g W e l l S e t R e v i s e d 2 0 2 3 - 0 3 - 0 2 . d w g PROJECT LOCATION 1 DRAWN BY: PROJECT NO. CHECKED BY: REVISED: DATE: FIGURE20234001 TLB AJM 03/02/2023 - FORMERLY GNC ENERGY 100 S. CHIMNEY ROCK ROAD GREENSBORO, NORTH CAROLINA DISCLAIMER: INFORMATION REPRESENTED ON THIS MAP WAS DERIVED FROM SECONDARY DATA SOURCES AND IS TO BE USED FOR GENERAL PLANNING PURPOSES ONLY. NO WARRANTIES OR REPRESENTATIONS OF ACCURACY ARE EXPRESSED OR IMPLIED. 0 SCALE IN FEET 2000 4000 SCALE: 1" = 2000' PROPERTY BOUNDARY GROUNDWATER FLOW SOURCE: USGS NORTH CAROLINA-GUILFORD CO. 7.5-MINUTE SERIES (TOPOGRAPHIC) GUILFORD QUADRANGLE 1997 (REV. 2001) SOUTH CHIMNEY ROCK ROAD WE S T M A R K E T S T R E E T Mo n i t o r i n g W e l l S e t R e v i s e d 2 0 2 3 - 0 3 - 0 2 . d w g ww w . k l e i n f e l d e r . c o m 0.5 1.0 2.01.50 ORIGINAL SCALE IN INCHES FOR REDUCED PLANS Storm Water Basin 10 03 04 09 08 21 07 22 01 02 05 06 Storm Water Basin Office & Lab Boiler House LEGEND PRODUCT LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK # 2 FUEL OIL TANK 1 TANK ID 2 3 4 5 6 7 8 9 10 CAPACITY (GALLONS) 1,008,000 gal. 1,050,000 gal. 630,000 gal. 630,000 gal. 630,000 gal. 630,000 gal. 210,000 gal. 1,050,000 gal. 1,260,000 gal. 2,184,000 gal. 15,000 gal.16 17 18 19 21 22 23 AAXL HO-1 HO-2 HO-3 LD1 LD2 LD3 LD4 M1 AD-HERE FATTY AMINE ASPHALT ADDITIVE 8,017 gal. 3,049 gal. 10,000 gal. 1,100,000 gal. 2,268,000 gal. 7630 X 3 COMPARTMENTS 10,000 gal. 440 gal. 440 gal. 440 gal. 40,000 gal. 40,000 gal. 40,000 gal. 40,000 gal. 8,000 gal. 8,000 gal. AD-HERE FATTY AMINE ASPHALT ADDITIVE # 2 FUEL OIL TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK LIQUID ASPHALT TANK FATTY AMINE ASPHALT ADDITIVE MINERAL OIL BASED ASPHALT ADDITIVE HOT OIL HOT OIL HOT OIL PMA PROCESS/MIX TANK PMA PROCESS/MIX TANKM2 LIQUID ASPHALT TANK LIQUID ASPHALT TANK V1 V2 40,000 gal. 40,000 gal. PROPERTY BOUNDARY SEPTIC DRAIN FIELD ABOVE GROUND PIPELINES RAILROAD FENCE LD4 LD3 LD2 LD1 V1 V2 M1M2 HO-1 TRANSFORMER (UTILITY OWNED)19 AAXL R6 16 23 R3 & R4 R1 & R2 17 18 HO-3 HO-2 X N VariesFUEL RACKR FO R M E R L Y G N C E N E R G Y 10 0 S . C H I M N E Y R O C K R O A D GR E E N S B O R O , N O R T H C A R O L I N A PL A N T L A Y O U T M A P 2 20 2 3 4 0 0 1 PH . 9 1 9 - 7 5 5 - 5 0 1 1 MO R R I S V I L L E , N C 2 7 5 6 0 32 0 0 G A T E W A Y C E N T R E B L V D . , S T . 1 0 0 1"=100' TLB W: \ E n v i r o \ C l i e n t P r o p o s a l a n d P r o j e c t F i l e s \ C R H A m e r i c a s \ P r o j e c t s \ 2 0 2 3 4 0 0 1 . 0 0 1 A - C R H G N C 2 0 2 2 M o n i t o r i n g \ 2 . 8 T e c h n i c a l C A D D F i g u r e s \ M o n i t o r i n g W e l l S e t R e v i s e d 2 0 2 3 - 0 3 - 0 2 . d w g 03/02/2023 AJM AJM SOUTH CHIMNEY ROCK ROAD WE S T M A R K E T S T R E E T MW-27 MW-4 MW-2S MW-2D MW-DRMW-DR MW-DRMW-DR (AW-8)(AW-7) (MW-34)(MW-33) MW-20 MW-21 MW-21D MW-6 MW-17D PROPERTY BOUNDARY SHALLOW MONITORING WELL DEEP MONITORING WELL W: \ E n v i r o \ C l i e n t P r o p o s a l a n d P r o j e c t F i l e s \ C R H A m e r i c a s \ P r o j e c t s \ 2 0 2 3 4 0 0 1 . 0 0 1 A - C R H G N C 2 0 2 2 M o n i t o r i n g \ 2 . 8 T e c h n i c a l C A D D F i g u r e s \ M o n i t o r i n g W e l l S e t R e v i s e d 2 0 2 3 - 0 3 - 0 2 . d w g 0.5 1.0 2.01.50 ORIGINAL SCALE IN INCHES FOR REDUCED PLANS MW-12S MW-12D AMW-1 MW-11D MW-11S MW-14 MW-5SR MW-5DR MW-15 MW-25 MW-26 MW-16 MW-7 MW-10 MW-28 MW-9 MW-24 MW-3R MW-17 MW-13 MW-19 MW-8 MW-23 Storm Water Basin Storm Water Basin ABANDONED SHALLOW MONITORING WELL ABANDONED DEEP MONITORING WELL Office & Lab Boiler House MW-22 LEGEND N Mo n i t o r i n g W e l l S e t R e v i s e d 2 0 2 3 - 0 3 - 0 2 . d w g ww w . k l e i n f e l d e r . c o m 20 2 3 4 0 0 1 PH . 9 1 9 - 7 5 5 - 5 0 1 1 MO R R I S V I L L E , N C 2 7 5 6 0 32 0 0 G A T E W A Y C E N T R E B L V D . , S T . 1 0 0 FO R M E R L Y G N C E N E R G Y 10 0 S . C H I M N E Y R O C K R O A D GR E E N S B O R O , N O R T H C A R O L I N A SI T E M A P WI T H M O N I T O R I N G W E L L LO C A T I O N S 2a 03/02/2023 1"=100' TLB AJM AJM SOUTH CHIMNEY ROCK ROAD WE S T M A R K E T S T R E E T 918 91 9 92 0 921 921 918 91 9 92 0 MW-12S MW-12D AMW-1 MW-11D MW-11S MW-14 MW-5SR MW-5DR MW-15 MW-25 MW-26 MW-16 MW-7 MW-10 MW-28 MW-9 MW-24 MW-3R MW-17 MW-13 MW-4 MW-2D MW-2S (MW-34) (NM) (MW-33) MW-DR (AW-7) MW-DR (AW-8) MW-DR MW-8 MW-23 MW-27 MW-20 MW-21D MW-21 MW-6 MW-17D Storm Water Basin Storm Water Basin Office & Lab Boiler House MW-22 PROPERTY BOUNDARY SHALLOW MONITORING WELL DEEP MONITORING WELL ABANDONED SHALLOW MONITORING WELL ABANDONED DEEP MONITORING WELL LEGEND GROUNDWATER ELEVATION GROUNDWATER CONTOUR DIRECTION OF GROUNDWATER FLOW NOTE: NM - NOT MEASURED (NM)(917.22) (NM) (917.22) (NM) (NM) (NM) (920.51) (NM) (NM) (NM) (NM) MW-19 (NM) (NM) (921.53) (NM) (920.91) (NM) (920.64) (NM) (NM) (NM) N 0.5 1.0 2.01.50 ORIGINAL SCALE IN INCHES FOR REDUCED PLANS FO R M E R L Y G N C E N E R G Y 10 0 S . C H I M N E Y R O C K R O A D GR E E N S B O R O , N O R T H C A R O L I N A 3 1"=100' JDS SH A L L O W PO T E N T I O M E T R I C SU R F A C E M A P Mo n i t o r i n g W e l l S e t R e v i s e d 2 0 2 4 - 1 2 - 1 7 . d w g ww w . k l e i n f e l d e r . c o m 20 2 3 4 0 0 1 PH . 9 1 9 - 7 5 5 - 5 0 1 1 MO R R I S V I L L E , N C 2 7 5 6 0 32 0 0 G A T E W A Y C E N T R E B L V D . , S T . 1 0 0 J:\ 2 0 2 3 4 0 0 1 . 0 0 1 A - C R H G N C 2 0 2 2 M o n i t o r i n g \ M o n i t o r i n g W e l l S e t R e v i s e d 2 0 2 4 - 1 2 - 1 7 . d w g 01/14/2025 MB AJM 921 92 3 SOUTH CHIMNEY ROCK ROAD WE S T M A R K E T S T R E E T 0.5 1.0 2.01.50 ORIGINAL SCALE IN INCHES FOR REDUCED PLANS MW-12S MW-12D AMW-1 MW-11D MW-11S MW-14 MW-5SR MW-5DR MW-15 MW-25 MW-26 MW-16 MW-7 MW-10 MW-28 MW-9 MW-24 MW-3R MW-17 MW-13 MW-19 MW-4 MW-2D MW-2S MW-34 (NL) (MW-33) MW-DR (AW-7) MW-DR (AW-8) MW-DR MW-8 MW-23 MW-27 MW-21 Storm Water Basin Storm Water Basin Office & Lab Boiler House MW-22 (NS) (NS) (NS) (2100) (NS) (1400) (NS) (NS) (NS)(NS) (NS) (NS) (2600) (NS) MW-6 MW-17D N MW-20 MW-21D (4200) (NS) (NS) (NS) (NS) (580) (NS) FO R M E R L Y G N C E N E R G Y 10 0 S . C H I M N E Y R O C K R O A D GR E E N S B O R O , N O R T H C A R O L I N A 4 1"=100' JDS Mo n i t o r i n g W e l l S e t R e v i s e d 2 0 2 4 - 1 2 - 1 7 . d w g ww w . k l e i n f e l d e r . c o m 20 2 3 4 0 0 1 PH . 9 1 9 - 7 5 5 - 5 0 1 1 MO R R I S V I L L E , N C 2 7 5 6 0 32 0 0 G A T E W A Y C E N T R E B L V D . , S T . 1 0 0 J:\ 2 0 2 3 4 0 0 1 . 0 0 1 A - C R H G N C 2 0 2 2 M o n i t o r i n g \ M o n i t o r i n g W e l l S e t R e v i s e d 2 0 2 4 - 1 2 - 1 7 . d w g 01/14/2025 MB AJM PROPERTY BOUNDARY SHALLOW MONITORING WELL DEEP MONITORING WELL ABANDONED SHALLOW MONITORING WELL ABANDONED DEEP MONITORING WELL LEGEND BENZENE CONCENTRATION (580) NOTE: CONCENTRATIONS REPORTED IN MICROGRAMS PER LITER (ug/l) NOT SAMPLEDNS BE N Z E N E CO N C E N T R A T I O N S (7.6) (<0.50) (1.4) (1800) (1300)NOT LOCATEDNL 25003023.001A | RAL25R176846 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com GRAPHS 0 10 0 0 20 0 0 30 0 0 40 0 0 50 0 0 60 0 0 70 0 0 80 0 0 0 2 4 6 8 10 12 14 16 18 20 Jan-04 Jul-04 Jan-05 Jul-05 Jan-06 Jul-06 Jan-07 Jul-07 Jan-08 Jul-08 Jan-09 Jul-09 Jan-10 Jul-10 Jan-11 Jul-11 Jan-12 Jul-12 Jan-13 Jul-13 Jan-14 Jul-14 Jan-15 Jul-15 Jan-16 Jul-16 Jan-17 Jul-17 Jan-18 Jul-18 Jan-19 Jul-19 Jan-20 Jul-20 Jan-21 Jul-21 Jan-22 Jul-22 Jan-23 Jul-23 Jan-24 Jul-24 Jan-25 Benzene Concentrations (ug/L) Water Level (Feet Below Top of Casing) Da t e Gr a p h 1 : M W - 2 7 B e n z e n e v s W a t e r L e v e l WL Be n z e n e 0 50 0 0 10 0 0 0 15 0 0 0 20 0 0 0 25 0 0 0 0 2 4 6 8 10 12 14 16 18 20 Jan-04 Jul-04 Jan-05 Jul-05 Jan-06 Jul-06 Jan-07 Jul-07 Jan-08 Jul-08 Jan-09 Jul-09 Jan-10 Jul-10 Jan-11 Jul-11 Jan-12 Jul-12 Jan-13 Jul-13 Jan-14 Jul-14 Jan-15 Jul-15 Jan-16 Jul-16 Jan-17 Jul-17 Jan-18 Jul-18 Jan-19 Jul-19 Jan-20 Jul-20 Jan-21 Jul-21 Jan-22 Jul-22 Jan-23 Jul-23 Jan-24 Jul-24 Jan-25 Benzene Concentration (ug/L) Water Levels (Feet Below Top of Casing) Da t e Gr a p h 2 : M W - 2 1 B e n z e n e v s W a t e r L e v e l WL Be n z e n e 0 10 0 0 20 0 0 30 0 0 40 0 0 50 0 0 60 0 0 70 0 0 0 2 4 6 8 10 12 14 16 18 20 Jan-04 Jul-04 Jan-05 Jul-05 Jan-06 Jul-06 Jan-07 Jul-07 Jan-08 Jul-08 Jan-09 Jul-09 Jan-10 Jul-10 Jan-11 Jul-11 Jan-12 Jul-12 Jan-13 Jul-13 Jan-14 Jul-14 Jan-15 Jul-15 Jan-16 Jul-16 Jan-17 Jul-17 Jan-18 Jul-18 Jan-19 Jul-19 Jan-20 Jul-20 Jan-21 Jul-21 Jan-22 Jul-22 Jan-23 Jul-23 Jan-24 Jul-24 Jan-25 Benzene Concentration (ug/L) Water Level (Feet Below Top of Casing) Da t e Gr a p h 3 : M W - 1 7 B e n z e n e v s W a t e r L e v e l s WL Be n z e n e 0 50 0 0 10 0 0 0 15 0 0 0 20 0 0 0 25 0 0 0 30 0 0 0 0 2 4 6 8 10 12 14 16 18 20 Jan-09 Jul-09 Jan-10 Jul-10 Jan-11 Jul-11 Jan-12 Jul-12 Jan-13 Jul-13 Jan-14 Jul-14 Jan-15 Jul-15 Jan-16 Jul-16 Jan-17 Jul-17 Jan-18 Jul-18 Jan-19 Jul-19 Jan-20 Jul-20 Jan-21 Jul-21 Jan-22 Jul-22 Jan-23 Jul-23 Jan-24 Jul-24 Jan-25 Benzene Concentrations (ug/L) Water Level (Feet Below Top of Casing) Da t e Gr a p h 4 : M W - 2 1 D B e n z e n e v s W a t e r L e v e l WL Be n z e n e 25003023.001A | RAL25R176846 January 15, 2025 © 2025 Kleinfelder www.kleinfelder.com APPENDIX A LABORATORY REPORT AND CHAIN-OF-CUSTODY DOCUMENT ANALYTICAL REPORT PREPARED FOR Attn: Adam Mahr Kleinfelder Inc 3200 Gateway Centre Boulevard Suite 100 Morrisville, North Carolina 27560 Generated 1/6/2025 10:59:17 AM JOB DESCRIPTION Former GNC Energy JOB NUMBER 410-201872-1 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 56 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 This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. 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 1/6/2025 10:59:17 AM Authorized for release by Megan Moeller, Client Services Manager Megan.Moeller@et.eurofinsus.com (717)556-7261 Page 2 of 56 1/6/2025 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. 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Page 3 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Table of Contents Client: Kleinfelder Inc Project/Site: Former GNC Energy Laboratory Job ID: 410-201872-1 Page 4 of 56 Eurofins Lancaster Laboratories Environment Testing, LLC1/6/2025 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Definitions/Glossary Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Qualifiers GC/MS VOA Qualifier Description *+LCS and/or LCSD is outside acceptance limits, high biased. Qualifier 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. cn Refer to Case Narrative for further detail E Result exceeded calibration range. F1 MS and/or MSD recovery exceeds control limits. F2 MS/MSD RPD 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 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Job Narrative410-201872-1 Analytical test results meet all requirements of the associated regulatory program listed on the Accreditation/Certification SummaryPageunlessotherwisenotedundertheindividualanalysis.Data qualifiers and/or narrative comments are included to explain any exceptions,if applicable. ·Matrix QC may not be reported if insufficient sample is provided or site-specific QC samples were not submitted.In these situations,to demonstrate precision and accuracy at a batch level,a LCS/LCSD may be 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. Receipt The samples were received on 12/21/2024 10:15 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 2.7°C. GC/MS VOAMethodSM6200_B:The continuing calibration verification (CCV)associated with batch 410-590810 recovered above the upper control limit for Bromoform,Dichlorodifluoromethane,Ethanol and Acetone.The samples associated with this CCV were non- detects for the affected analytes;therefore,the data have been reported. Method SM6200_B:The method requirement for no headspace was not met.The container (s)used for reanalysis of the following sample contained headspace due to results for the initial analysis above the upper calibration range:MW-5DR (410-201872-8). Method SM6200_B:The continuing calibration verification (CCV)associated with batch 410-591176 recovered above the uppercontrollimitforBromoform,Dibromochloromethane,Dichlorodifluoromethane,Ethanol and Acetone.The samples associated with this CCV were non-detects for the affected analytes;therefore,the data have been reported. Method SM6200_B:The continuing calibration verification (CCV)associated with batch 410-590810 recovered above the upper control limit for Bromoform,Dichlorodifluoromethane and Ethanol.The samples associated with this CCV were non-detects for the affected analytes;therefore,the data have been reported. Method SM6200_B:The continuing calibration verification (CCV)associated with batch 410-590810 recovered above the uppercontrollimitforAcetone.Non-detections of the affected analytes are reported. Any detections are considered estimated. Method SM6200_B:The laboratory control sample (LCS)for 410-590810 recovered outside control limits for the following analytes: Acetone. No additional analytical or quality issues were noted,other than those described above or in the Definitions/Glossary page. Case Narrative Client: Kleinfelder Inc Job ID: 410-201872-1 Project: Former GNC Energy Eurofins Lancaster Laboratories Environment Testing, LLC Job ID: 410-201872-1 Eurofins Lancaster Laboratories Environment Page 6 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Client Sample ID: MW-21D Lab Sample ID: 410-201872-1 1,2-Dichloroethane RL 10 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA203706200 B-2011 di-Isopropyl ether 10 ug/L Total/NA20876200 B-2011 Ethylbenzene 10 ug/L Total/NA204206200 B-2011 Isopropylbenzene 10 ug/L Total/NA2025F16200 B-2011 Methylene Chloride 16 ug/L Total/NA20176200 B-2011 Naphthalene 10 ug/L Total/NA20636200 B-2011 N-Propylbenzene 10 ug/L Total/NA20246200 B-2011 1,2,4-Trimethylbenzene 10 ug/L Total/NA20666200 B-2011 1,3,5-Trimethylbenzene 10 ug/L Total/NA20246200 B-2011 Xylenes, Total 10 ug/L Total/NA20976200 B-2011 Benzene - DL 100 ug/L Total/NA20018006200 B-2011 Client Sample ID: MW-21 Lab Sample ID: 410-201872-2 Isopropylbenzene RL 25 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA50766200 B-2011 Naphthalene 25 ug/L Total/NA502906200 B-2011 N-Propylbenzene 25 ug/L Total/NA501206200 B-2011 Toluene 25 ug/L Total/NA50756200 B-2011 1,2,4-Trimethylbenzene 25 ug/L Total/NA5012006200 B-2011 1,3,5-Trimethylbenzene 25 ug/L Total/NA504606200 B-2011 Benzene - DL 250 ug/L Total/NA50042006200 B-2011 Ethylbenzene - DL 250 ug/L Total/NA50027006200 B-2011 Xylenes, Total - DL 250 ug/L Total/NA50049006200 B-2011 Client Sample ID: MW-2S Lab Sample ID: 410-201872-3 di-Isopropyl ether RL 10 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA20126200 B-2011 Isopropylbenzene 10 ug/L Total/NA201206200 B-2011 Methyl tert-butyl ether 10 ug/L Total/NA20186200 B-2011 Naphthalene 10 ug/L Total/NA203006200 B-2011 N-Propylbenzene 10 ug/L Total/NA202106200 B-2011 sec-Butylbenzene 10 ug/L Total/NA20166200 B-2011 1,2,4-Trimethylbenzene 10 ug/L Total/NA201206200 B-2011 1,3,5-Trimethylbenzene 10 ug/L Total/NA20546200 B-2011 Xylenes, Total 10 ug/L Total/NA201506200 B-2011 Benzene - DL 100 ug/L Total/NA20014006200 B-2011 Client Sample ID: MW-2D Lab Sample ID: 410-201872-4 di-Isopropyl ether RL 25 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA504606200 B-2011 Ethylbenzene 25 ug/L Total/NA50906200 B-2011 Methyl tert-butyl ether 25 ug/L Total/NA5011006200 B-2011 Naphthalene 25 ug/L Total/NA501506200 B-2011 1,2,4-Trimethylbenzene 25 ug/L Total/NA50346200 B-2011 Benzene - DL 250 ug/L Total/NA50013006200 B-2011 Client Sample ID: MW-17D Lab Sample ID: 410-201872-5 Benzene RL 0.50 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA11.4 6200 B-2011 Eurofins Lancaster Laboratories Environment Testing, LLC This Detection Summary does not include radiochemical test results. Page 7 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Client Sample ID: MW-17D (Continued)Lab Sample ID: 410-201872-5 Methyl tert-butyl ether RL 0.50 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA11.0 6200 B-2011 Acetone 12 ug/L Total/NA121*+ cn 6200 B-2011 Client Sample ID: MW-17 Lab Sample ID: 410-201872-6 di-Isopropyl ether RL 25 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA504306200 B-2011 Isopropylbenzene 25 ug/L Total/NA50516200 B-2011 Naphthalene 25 ug/L Total/NA503506200 B-2011 N-Propylbenzene 25 ug/L Total/NA501206200 B-2011 1,3,5-Trimethylbenzene 25 ug/L Total/NA501906200 B-2011 Xylenes, Total 25 ug/L Total/NA50836200 B-2011 Benzene - DL 250 ug/L Total/NA50026006200 B-2011 Ethylbenzene - DL 250 ug/L Total/NA50015006200 B-2011 Methyl tert-butyl ether - DL 250 ug/L Total/NA50031006200 B-2011 Client Sample ID: MW-5SR Lab Sample ID: 410-201872-7 di-Isopropyl ether RL 5.0 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA10246200 B-2011 Ethylbenzene 5.0 ug/L Total/NA102406200 B-2011 Isopropylbenzene 5.0 ug/L Total/NA101206200 B-2011 Methyl tert-butyl ether 5.0 ug/L Total/NA101506200 B-2011 n-Butylbenzene 5.0 ug/L Total/NA10186200 B-2011 N-Propylbenzene 5.0 ug/L Total/NA102506200 B-2011 sec-Butylbenzene 5.0 ug/L Total/NA10146200 B-2011 Toluene 5.0 ug/L Total/NA10266200 B-2011 1,3,5-Trimethylbenzene 5.0 ug/L Total/NA108.6 6200 B-2011 Xylenes, Total 5.0 ug/L Total/NA10546200 B-2011 Benzene - DL 50 ug/L Total/NA1005806200 B-2011 Naphthalene - DL 50 ug/L Total/NA1004906200 B-2011 Client Sample ID: MW-5DR Lab Sample ID: 410-201872-8 1,2-Dichloroethane RL 0.50 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA1216200 B-2011 sec-Butylbenzene 0.50 ug/L Total/NA10.50 6200 B-2011 tert-Butylbenzene 0.50 ug/L Total/NA12.9 6200 B-2011 di-Isopropyl ether - DL 50 ug/L Total/NA100110cn6200 B-2011 Methyl tert-butyl ether - DL 50 ug/L Total/NA100730cn6200 B-2011 Client Sample ID: MW-27 Lab Sample ID: 410-201872-9 Ethylbenzene RL 10 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA20F1556200 B-2011 Methyl tert-butyl ether 10 ug/L Total/NA2070F16200 B-2011 Naphthalene 10 ug/L Total/NA20260F16200 B-2011 N-Propylbenzene 10 ug/L Total/NA2015F16200 B-2011 1,2,4-Trimethylbenzene 10 ug/L Total/NA20190F16200 B-2011 1,3,5-Trimethylbenzene 10 ug/L Total/NA2038F16200 B-2011 Xylenes, Total 10 ug/L Total/NA20140F16200 B-2011 Benzene - DL 100 ug/L Total/NA20021006200 B-2011 Eurofins Lancaster Laboratories Environment Testing, LLC This Detection Summary does not include radiochemical test results. Page 8 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Client Sample ID: MW-11D Lab Sample ID: 410-201872-10 Benzene RL 0.50 ug/L Analyte Result Qualifier Unit Dil Fac D Method Prep Type Total/NA17.6 6200 B-2011 di-Isopropyl ether 0.50 ug/L Total/NA19.1 6200 B-2011 Isopropylbenzene 0.50 ug/L Total/NA11.1 6200 B-2011 Naphthalene 0.50 ug/L Total/NA11.6 6200 B-2011 sec-Butylbenzene 0.50 ug/L Total/NA13.5 6200 B-2011 tert-Butylbenzene 0.50 ug/L Total/NA10.57 6200 B-2011 Methyl tert-butyl ether - DL 5.0 ug/L Total/NA101006200 B-2011 Client Sample ID: Trip Blank Lab Sample ID: 410-201872-11 No Detections. Eurofins Lancaster Laboratories Environment Testing, LLC This Detection Summary does not include radiochemical test results. Page 9 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-1Client Sample ID: MW-21D Matrix: GroundwaterDate Collected: 12/17/24 10:20 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL <10 10 ug/L 12/30/24 16:45 20 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Bromobenzene 10 ug/L 12/30/24 16:45 20<10Bromochloromethane 10 ug/L 12/30/24 16:45 20<10 F1Bromodichloromethane 20 ug/L 12/30/24 16:45 20<20 F1 *+ cnBromoform 10 ug/L 12/30/24 16:45 20<10Bromomethane 10 ug/L 12/30/24 16:45 20<10 F1Carbon tetrachloride 10 ug/L 12/30/24 16:45 20<10Chlorobenzene 10 ug/L 12/30/24 16:45 20<10Chloroethane 10 ug/L 12/30/24 16:45 20<10Chloroform 16 ug/L 12/30/24 16:45 20<16 F1Chloromethane 10 ug/L 12/30/24 16:45 20<102-Chlorotoluene 10 ug/L 12/30/24 16:45 20<104-Chlorotoluene 10 ug/L 12/30/24 16:45 20<10cis-1,2-Dichloroethene 10 ug/L 12/30/24 16:45 20<10cis-1,3-Dichloropropene 10 ug/L 12/30/24 16:45 20<10Dibromochloromethane 40 ug/L 12/30/24 16:45 20<401,2-Dibromo-3-Chloropropane 10 ug/L 12/30/24 16:45 20<101,2-Dibromoethane 10 ug/L 12/30/24 16:45 20<10 F1Dibromomethane 10 ug/L 12/30/24 16:45 20<101,2-Dichlorobenzene 10 ug/L 12/30/24 16:45 20<101,3-Dichlorobenzene 10 ug/L 12/30/24 16:45 20<101,4-Dichlorobenzene 10 ug/L 12/30/24 16:45 20<10 *+ cnDichlorodifluoromethane 10 ug/L 12/30/24 16:45 20<101,1-Dichloroethane 10 ug/L 12/30/24 16:45 203701,2-Dichloroethane 10 ug/L 12/30/24 16:45 20<10 F11,1-Dichloroethene 10 ug/L 12/30/24 16:45 20<10 F11,2-Dichloropropane 10 ug/L 12/30/24 16:45 20<101,3-Dichloropropane 10 ug/L 12/30/24 16:45 20<102,2-Dichloropropane 10 ug/L 12/30/24 16:45 20<101,1-Dichloropropene 10 ug/L 12/30/24 16:45 2087di-Isopropyl ether 4000 ug/L 12/30/24 16:45 20<4000 *+ cnEthanol 10 ug/L 12/30/24 16:45 20420Ethylbenzene 10 ug/L 12/30/24 16:45 20<10Hexachlorobutadiene 10 ug/L 12/30/24 16:45 2025F1Isopropylbenzene 16 ug/L 12/30/24 16:45 2017Methylene Chloride 10 ug/L 12/30/24 16:45 20<10Methyl tert-butyl ether 10 ug/L 12/30/24 16:45 2063Naphthalene 10 ug/L 12/30/24 16:45 20<10n-Butylbenzene 10 ug/L 12/30/24 16:45 2024N-Propylbenzene 100 ug/L 12/30/24 16:45 20<1002-Butanone 10 ug/L 12/30/24 16:45 20<10p-Isopropyltoluene 10 ug/L 12/30/24 16:45 20<10sec-Butylbenzene 10 ug/L 12/30/24 16:45 20<10 F1Styrene 10 ug/L 12/30/24 16:45 20<10tert-Butylbenzene 10 ug/L 12/30/24 16:45 20<101,1,1,2-Tetrachloroethane 10 ug/L 12/30/24 16:45 20<101,1,2,2-Tetrachloroethane 10 ug/L 12/30/24 16:45 20<10Tetrachloroethene 100 ug/L 12/30/24 16:45 20<100 F12-Hexanone 10 ug/L 12/30/24 16:45 20<10Toluene Eurofins Lancaster Laboratories Environment Testing, LLC Page 10 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-1Client Sample ID: MW-21D Matrix: GroundwaterDate Collected: 12/17/24 10:20 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <10 10 ug/L 12/30/24 16:45 20 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier trans-1,2-Dichloroethene 10 ug/L 12/30/24 16:45 20<10trans-1,3-Dichloropropene 10 ug/L 12/30/24 16:45 20<101,2,3-Trichlorobenzene 10 ug/L 12/30/24 16:45 20<101,2,4-Trichlorobenzene 10 ug/L 12/30/24 16:45 20<101,1,1-Trichloroethane 100 ug/L 12/30/24 16:45 20<100 F14-Methyl-2-pentanone (MIBK) 10 ug/L 12/30/24 16:45 20<10 F11,1,2-Trichloroethane 240 ug/L 12/30/24 16:45 20<240 F1 *+ cnAcetone 10 ug/L 12/30/24 16:45 20<10Trichloroethene 10 ug/L 12/30/24 16:45 20<10Trichlorofluoromethane 40 ug/L 12/30/24 16:45 20<401,2,3-Trichloropropane 10 ug/L 12/30/24 16:45 20661,2,4-Trimethylbenzene 10 ug/L 12/30/24 16:45 20241,3,5-Trimethylbenzene 10 ug/L 12/30/24 16:45 20<10Vinyl chloride 10 ug/L 12/30/24 16:45 2097Xylenes, Total 16 ug/L 12/30/24 16:45 20<16Vinyl acetate 4-Bromofluorobenzene (Surr)96 70-130 12/30/24 16:45 20 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)105 12/30/24 16:45 2070-130 1,2-Dichloroethane-d4 (Surr)109 12/30/24 16:45 2070-130 Toluene-d8 (Surr)95 12/30/24 16:45 2070-130 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL 1800 100 ug/L 12/30/24 18:45 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 4-Bromofluorobenzene (Surr)92 70-130 12/30/24 18:45 200 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)107 12/30/24 18:45 20070-130 1,2-Dichloroethane-d4 (Surr)113 12/30/24 18:45 20070-130 Toluene-d8 (Surr)94 12/30/24 18:45 20070-130 Lab Sample ID: 410-201872-2Client Sample ID: MW-21 Matrix: GroundwaterDate Collected: 12/17/24 10:58 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL <25 25 ug/L 12/30/24 19:09 50 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Bromobenzene 25 ug/L 12/30/24 19:09 50<25Bromochloromethane 25 ug/L 12/30/24 19:09 50<25Bromodichloromethane 50 ug/L 12/30/24 19:09 50<50 *+ cnBromoform 25 ug/L 12/30/24 19:09 50<25Bromomethane 25 ug/L 12/30/24 19:09 50<25Carbon tetrachloride 25 ug/L 12/30/24 19:09 50<25Chlorobenzene 25 ug/L 12/30/24 19:09 50<25Chloroethane 25 ug/L 12/30/24 19:09 50<25Chloroform 40 ug/L 12/30/24 19:09 50<40Chloromethane 25 ug/L 12/30/24 19:09 50<252-Chlorotoluene 25 ug/L 12/30/24 19:09 50<254-Chlorotoluene Eurofins Lancaster Laboratories Environment Testing, LLC Page 11 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-2Client Sample ID: MW-21 Matrix: GroundwaterDate Collected: 12/17/24 10:58 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <25 25 ug/L 12/30/24 19:09 50 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier cis-1,2-Dichloroethene 25 ug/L 12/30/24 19:09 50<25cis-1,3-Dichloropropene 25 ug/L 12/30/24 19:09 50<25Dibromochloromethane 100 ug/L 12/30/24 19:09 50<1001,2-Dibromo-3-Chloropropane 25 ug/L 12/30/24 19:09 50<251,2-Dibromoethane 25 ug/L 12/30/24 19:09 50<25Dibromomethane 25 ug/L 12/30/24 19:09 50<251,2-Dichlorobenzene 25 ug/L 12/30/24 19:09 50<251,3-Dichlorobenzene 25 ug/L 12/30/24 19:09 50<251,4-Dichlorobenzene 25 ug/L 12/30/24 19:09 50<25 *+ cnDichlorodifluoromethane 25 ug/L 12/30/24 19:09 50<251,1-Dichloroethane 25 ug/L 12/30/24 19:09 50<251,2-Dichloroethane 25 ug/L 12/30/24 19:09 50<251,1-Dichloroethene 25 ug/L 12/30/24 19:09 50<251,2-Dichloropropane 25 ug/L 12/30/24 19:09 50<251,3-Dichloropropane 25 ug/L 12/30/24 19:09 50<252,2-Dichloropropane 25 ug/L 12/30/24 19:09 50<251,1-Dichloropropene 25 ug/L 12/30/24 19:09 50<25di-Isopropyl ether 10000 ug/L 12/30/24 19:09 50<10000 *+ cnEthanol 25 ug/L 12/30/24 19:09 50<25Hexachlorobutadiene 25 ug/L 12/30/24 19:09 5076Isopropylbenzene 40 ug/L 12/30/24 19:09 50<40Methylene Chloride 25 ug/L 12/30/24 19:09 50<25Methyl tert-butyl ether 25 ug/L 12/30/24 19:09 50290Naphthalene 25 ug/L 12/30/24 19:09 50<25n-Butylbenzene 25 ug/L 12/30/24 19:09 50120N-Propylbenzene 250 ug/L 12/30/24 19:09 50<2502-Butanone 25 ug/L 12/30/24 19:09 50<25p-Isopropyltoluene 25 ug/L 12/30/24 19:09 50<25sec-Butylbenzene 25 ug/L 12/30/24 19:09 50<25Styrene 25 ug/L 12/30/24 19:09 50<25tert-Butylbenzene 25 ug/L 12/30/24 19:09 50<251,1,1,2-Tetrachloroethane 25 ug/L 12/30/24 19:09 50<251,1,2,2-Tetrachloroethane 25 ug/L 12/30/24 19:09 50<25Tetrachloroethene 250 ug/L 12/30/24 19:09 50<2502-Hexanone 25 ug/L 12/30/24 19:09 5075Toluene 25 ug/L 12/30/24 19:09 50<25trans-1,2-Dichloroethene 25 ug/L 12/30/24 19:09 50<25trans-1,3-Dichloropropene 25 ug/L 12/30/24 19:09 50<251,2,3-Trichlorobenzene 25 ug/L 12/30/24 19:09 50<251,2,4-Trichlorobenzene 25 ug/L 12/30/24 19:09 50<251,1,1-Trichloroethane 250 ug/L 12/30/24 19:09 50<2504-Methyl-2-pentanone (MIBK) 25 ug/L 12/30/24 19:09 50<251,1,2-Trichloroethane 600 ug/L 12/30/24 19:09 50<600 *+ cnAcetone 25 ug/L 12/30/24 19:09 50<25Trichloroethene 25 ug/L 12/30/24 19:09 50<25Trichlorofluoromethane 100 ug/L 12/30/24 19:09 50<1001,2,3-Trichloropropane 25 ug/L 12/30/24 19:09 5012001,2,4-Trimethylbenzene 25 ug/L 12/30/24 19:09 504601,3,5-Trimethylbenzene Eurofins Lancaster Laboratories Environment Testing, LLC Page 12 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-2Client Sample ID: MW-21 Matrix: GroundwaterDate Collected: 12/17/24 10:58 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <25 25 ug/L 12/30/24 19:09 50 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Vinyl chloride 40 ug/L 12/30/24 19:09 50<40Vinyl acetate 4-Bromofluorobenzene (Surr)97 70-130 12/30/24 19:09 50 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)103 12/30/24 19:09 5070-130 1,2-Dichloroethane-d4 (Surr)106 12/30/24 19:09 5070-130 Toluene-d8 (Surr)94 12/30/24 19:09 5070-130 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL 4200 250 ug/L 12/30/24 19:33 500 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 250 ug/L 12/30/24 19:33 5002700Ethylbenzene 250 ug/L 12/30/24 19:33 5004900Xylenes, Total 4-Bromofluorobenzene (Surr)97 70-130 12/30/24 19:33 500 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)110 12/30/24 19:33 50070-130 1,2-Dichloroethane-d4 (Surr)112 12/30/24 19:33 50070-130 Toluene-d8 (Surr)95 12/30/24 19:33 50070-130 Lab Sample ID: 410-201872-3Client Sample ID: MW-2S Matrix: GroundwaterDate Collected: 12/17/24 11:39 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL <10 10 ug/L 12/30/24 19:57 20 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Bromobenzene 10 ug/L 12/30/24 19:57 20<10Bromochloromethane 10 ug/L 12/30/24 19:57 20<10Bromodichloromethane 20 ug/L 12/30/24 19:57 20<20 *+ cnBromoform 10 ug/L 12/30/24 19:57 20<10Bromomethane 10 ug/L 12/30/24 19:57 20<10Carbon tetrachloride 10 ug/L 12/30/24 19:57 20<10Chlorobenzene 10 ug/L 12/30/24 19:57 20<10Chloroethane 10 ug/L 12/30/24 19:57 20<10Chloroform 16 ug/L 12/30/24 19:57 20<16Chloromethane 10 ug/L 12/30/24 19:57 20<102-Chlorotoluene 10 ug/L 12/30/24 19:57 20<104-Chlorotoluene 10 ug/L 12/30/24 19:57 20<10cis-1,2-Dichloroethene 10 ug/L 12/30/24 19:57 20<10cis-1,3-Dichloropropene 10 ug/L 12/30/24 19:57 20<10Dibromochloromethane 40 ug/L 12/30/24 19:57 20<401,2-Dibromo-3-Chloropropane 10 ug/L 12/30/24 19:57 20<101,2-Dibromoethane 10 ug/L 12/30/24 19:57 20<10Dibromomethane 10 ug/L 12/30/24 19:57 20<101,2-Dichlorobenzene 10 ug/L 12/30/24 19:57 20<101,3-Dichlorobenzene 10 ug/L 12/30/24 19:57 20<101,4-Dichlorobenzene 10 ug/L 12/30/24 19:57 20<10 *+ cnDichlorodifluoromethane 10 ug/L 12/30/24 19:57 20<101,1-Dichloroethane 10 ug/L 12/30/24 19:57 20<101,2-Dichloroethane Eurofins Lancaster Laboratories Environment Testing, LLC Page 13 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-3Client Sample ID: MW-2S Matrix: GroundwaterDate Collected: 12/17/24 11:39 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <10 10 ug/L 12/30/24 19:57 20 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,1-Dichloroethene 10 ug/L 12/30/24 19:57 20<101,2-Dichloropropane 10 ug/L 12/30/24 19:57 20<101,3-Dichloropropane 10 ug/L 12/30/24 19:57 20<102,2-Dichloropropane 10 ug/L 12/30/24 19:57 20<101,1-Dichloropropene 10 ug/L 12/30/24 19:57 2012di-Isopropyl ether 4000 ug/L 12/30/24 19:57 20<4000 *+ cnEthanol 10 ug/L 12/30/24 19:57 20<10Ethylbenzene 10 ug/L 12/30/24 19:57 20<10Hexachlorobutadiene 10 ug/L 12/30/24 19:57 20120Isopropylbenzene 16 ug/L 12/30/24 19:57 20<16Methylene Chloride 10 ug/L 12/30/24 19:57 2018Methyl tert-butyl ether 10 ug/L 12/30/24 19:57 20300Naphthalene 10 ug/L 12/30/24 19:57 20<10n-Butylbenzene 10 ug/L 12/30/24 19:57 20210N-Propylbenzene 100 ug/L 12/30/24 19:57 20<1002-Butanone 10 ug/L 12/30/24 19:57 20<10p-Isopropyltoluene 10 ug/L 12/30/24 19:57 2016sec-Butylbenzene 10 ug/L 12/30/24 19:57 20<10Styrene 10 ug/L 12/30/24 19:57 20<10tert-Butylbenzene 10 ug/L 12/30/24 19:57 20<101,1,1,2-Tetrachloroethane 10 ug/L 12/30/24 19:57 20<101,1,2,2-Tetrachloroethane 10 ug/L 12/30/24 19:57 20<10Tetrachloroethene 100 ug/L 12/30/24 19:57 20<1002-Hexanone 10 ug/L 12/30/24 19:57 20<10Toluene 10 ug/L 12/30/24 19:57 20<10trans-1,2-Dichloroethene 10 ug/L 12/30/24 19:57 20<10trans-1,3-Dichloropropene 10 ug/L 12/30/24 19:57 20<101,2,3-Trichlorobenzene 10 ug/L 12/30/24 19:57 20<101,2,4-Trichlorobenzene 10 ug/L 12/30/24 19:57 20<101,1,1-Trichloroethane 100 ug/L 12/30/24 19:57 20<1004-Methyl-2-pentanone (MIBK) 10 ug/L 12/30/24 19:57 20<101,1,2-Trichloroethane 240 ug/L 12/30/24 19:57 20<240 *+ cnAcetone 10 ug/L 12/30/24 19:57 20<10Trichloroethene 10 ug/L 12/30/24 19:57 20<10Trichlorofluoromethane 40 ug/L 12/30/24 19:57 20<401,2,3-Trichloropropane 10 ug/L 12/30/24 19:57 201201,2,4-Trimethylbenzene 10 ug/L 12/30/24 19:57 20541,3,5-Trimethylbenzene 10 ug/L 12/30/24 19:57 20<10Vinyl chloride 10 ug/L 12/30/24 19:57 20150Xylenes, Total 16 ug/L 12/30/24 19:57 20<16Vinyl acetate 4-Bromofluorobenzene (Surr)101 70-130 12/30/24 19:57 20 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)106 12/30/24 19:57 2070-130 1,2-Dichloroethane-d4 (Surr)112 12/30/24 19:57 2070-130 Toluene-d8 (Surr)95 12/30/24 19:57 2070-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 14 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-3Client Sample ID: MW-2S Matrix: GroundwaterDate Collected: 12/17/24 11:39 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL 1400 100 ug/L 12/30/24 20:21 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 4-Bromofluorobenzene (Surr)96 70-130 12/30/24 20:21 200 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)109 12/30/24 20:21 20070-130 1,2-Dichloroethane-d4 (Surr)113 12/30/24 20:21 20070-130 Toluene-d8 (Surr)94 12/30/24 20:21 20070-130 Lab Sample ID: 410-201872-4Client Sample ID: MW-2D Matrix: GroundwaterDate Collected: 12/17/24 12:19 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL <25 25 ug/L 12/30/24 20:45 50 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Bromobenzene 25 ug/L 12/30/24 20:45 50<25Bromochloromethane 25 ug/L 12/30/24 20:45 50<25Bromodichloromethane 50 ug/L 12/30/24 20:45 50<50 *+ cnBromoform 25 ug/L 12/30/24 20:45 50<25Bromomethane 25 ug/L 12/30/24 20:45 50<25Carbon tetrachloride 25 ug/L 12/30/24 20:45 50<25Chlorobenzene 25 ug/L 12/30/24 20:45 50<25Chloroethane 25 ug/L 12/30/24 20:45 50<25Chloroform 40 ug/L 12/30/24 20:45 50<40Chloromethane 25 ug/L 12/30/24 20:45 50<252-Chlorotoluene 25 ug/L 12/30/24 20:45 50<254-Chlorotoluene 25 ug/L 12/30/24 20:45 50<25cis-1,2-Dichloroethene 25 ug/L 12/30/24 20:45 50<25cis-1,3-Dichloropropene 25 ug/L 12/30/24 20:45 50<25Dibromochloromethane 100 ug/L 12/30/24 20:45 50<1001,2-Dibromo-3-Chloropropane 25 ug/L 12/30/24 20:45 50<251,2-Dibromoethane 25 ug/L 12/30/24 20:45 50<25Dibromomethane 25 ug/L 12/30/24 20:45 50<251,2-Dichlorobenzene 25 ug/L 12/30/24 20:45 50<251,3-Dichlorobenzene 25 ug/L 12/30/24 20:45 50<251,4-Dichlorobenzene 25 ug/L 12/30/24 20:45 50<25 *+ cnDichlorodifluoromethane 25 ug/L 12/30/24 20:45 50<251,1-Dichloroethane 25 ug/L 12/30/24 20:45 50<251,2-Dichloroethane 25 ug/L 12/30/24 20:45 50<251,1-Dichloroethene 25 ug/L 12/30/24 20:45 50<251,2-Dichloropropane 25 ug/L 12/30/24 20:45 50<251,3-Dichloropropane 25 ug/L 12/30/24 20:45 50<252,2-Dichloropropane 25 ug/L 12/30/24 20:45 50<251,1-Dichloropropene 25 ug/L 12/30/24 20:45 50460di-Isopropyl ether 10000 ug/L 12/30/24 20:45 50<10000 *+ cnEthanol 25 ug/L 12/30/24 20:45 5090Ethylbenzene 25 ug/L 12/30/24 20:45 50<25Hexachlorobutadiene 25 ug/L 12/30/24 20:45 50<25Isopropylbenzene 40 ug/L 12/30/24 20:45 50<40Methylene Chloride 25 ug/L 12/30/24 20:45 501100Methyl tert-butyl ether Eurofins Lancaster Laboratories Environment Testing, LLC Page 15 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-4Client Sample ID: MW-2D Matrix: GroundwaterDate Collected: 12/17/24 12:19 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL 150 25 ug/L 12/30/24 20:45 50 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Naphthalene 25 ug/L 12/30/24 20:45 50<25n-Butylbenzene 25 ug/L 12/30/24 20:45 50<25N-Propylbenzene 250 ug/L 12/30/24 20:45 50<2502-Butanone 25 ug/L 12/30/24 20:45 50<25p-Isopropyltoluene 25 ug/L 12/30/24 20:45 50<25sec-Butylbenzene 25 ug/L 12/30/24 20:45 50<25Styrene 25 ug/L 12/30/24 20:45 50<25tert-Butylbenzene 25 ug/L 12/30/24 20:45 50<251,1,1,2-Tetrachloroethane 25 ug/L 12/30/24 20:45 50<251,1,2,2-Tetrachloroethane 25 ug/L 12/30/24 20:45 50<25Tetrachloroethene 250 ug/L 12/30/24 20:45 50<2502-Hexanone 25 ug/L 12/30/24 20:45 50<25Toluene 25 ug/L 12/30/24 20:45 50<25trans-1,2-Dichloroethene 25 ug/L 12/30/24 20:45 50<25trans-1,3-Dichloropropene 25 ug/L 12/30/24 20:45 50<251,2,3-Trichlorobenzene 25 ug/L 12/30/24 20:45 50<251,2,4-Trichlorobenzene 25 ug/L 12/30/24 20:45 50<251,1,1-Trichloroethane 250 ug/L 12/30/24 20:45 50<2504-Methyl-2-pentanone (MIBK) 25 ug/L 12/30/24 20:45 50<251,1,2-Trichloroethane 600 ug/L 12/30/24 20:45 50<600 *+ cnAcetone 25 ug/L 12/30/24 20:45 50<25Trichloroethene 25 ug/L 12/30/24 20:45 50<25Trichlorofluoromethane 100 ug/L 12/30/24 20:45 50<1001,2,3-Trichloropropane 25 ug/L 12/30/24 20:45 50341,2,4-Trimethylbenzene 25 ug/L 12/30/24 20:45 50<251,3,5-Trimethylbenzene 25 ug/L 12/30/24 20:45 50<25Vinyl chloride 25 ug/L 12/30/24 20:45 50<25Xylenes, Total 40 ug/L 12/30/24 20:45 50<40Vinyl acetate 4-Bromofluorobenzene (Surr)95 70-130 12/30/24 20:45 50 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)107 12/30/24 20:45 5070-130 1,2-Dichloroethane-d4 (Surr)112 12/30/24 20:45 5070-130 Toluene-d8 (Surr)93 12/30/24 20:45 5070-130 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL 1300 250 ug/L 12/30/24 21:09 500 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 4-Bromofluorobenzene (Surr)86 70-130 12/30/24 21:09 500 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)113 12/30/24 21:09 50070-130 1,2-Dichloroethane-d4 (Surr)117 12/30/24 21:09 50070-130 Toluene-d8 (Surr)92 12/30/24 21:09 50070-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 16 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-5Client Sample ID: MW-17D Matrix: GroundwaterDate Collected: 12/17/24 13:40 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL 1.4 0.50 ug/L 12/30/24 15:33 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 0.50 ug/L 12/30/24 15:33 1<0.50Bromobenzene 0.50 ug/L 12/30/24 15:33 1<0.50Bromochloromethane 0.50 ug/L 12/30/24 15:33 1<0.50Bromodichloromethane 1.0 ug/L 12/30/24 15:33 1<1.0 *+ cnBromoform 0.50 ug/L 12/30/24 15:33 1<0.50Bromomethane 0.50 ug/L 12/30/24 15:33 1<0.50Carbon tetrachloride 0.50 ug/L 12/30/24 15:33 1<0.50Chlorobenzene 0.50 ug/L 12/30/24 15:33 1<0.50Chloroethane 0.50 ug/L 12/30/24 15:33 1<0.50Chloroform 0.80 ug/L 12/30/24 15:33 1<0.80Chloromethane 0.50 ug/L 12/30/24 15:33 1<0.502-Chlorotoluene 0.50 ug/L 12/30/24 15:33 1<0.504-Chlorotoluene 0.50 ug/L 12/30/24 15:33 1<0.50cis-1,2-Dichloroethene 0.50 ug/L 12/30/24 15:33 1<0.50cis-1,3-Dichloropropene 0.50 ug/L 12/30/24 15:33 1<0.50Dibromochloromethane 2.0 ug/L 12/30/24 15:33 1<2.01,2-Dibromo-3-Chloropropane 0.50 ug/L 12/30/24 15:33 1<0.501,2-Dibromoethane 0.50 ug/L 12/30/24 15:33 1<0.50Dibromomethane 0.50 ug/L 12/30/24 15:33 1<0.501,2-Dichlorobenzene 0.50 ug/L 12/30/24 15:33 1<0.501,3-Dichlorobenzene 0.50 ug/L 12/30/24 15:33 1<0.501,4-Dichlorobenzene 0.50 ug/L 12/30/24 15:33 1<0.50 *+ cnDichlorodifluoromethane 0.50 ug/L 12/30/24 15:33 1<0.501,1-Dichloroethane 0.50 ug/L 12/30/24 15:33 1<0.501,2-Dichloroethane 0.50 ug/L 12/30/24 15:33 1<0.501,1-Dichloroethene 0.50 ug/L 12/30/24 15:33 1<0.501,2-Dichloropropane 0.50 ug/L 12/30/24 15:33 1<0.501,3-Dichloropropane 0.50 ug/L 12/30/24 15:33 1<0.502,2-Dichloropropane 0.50 ug/L 12/30/24 15:33 1<0.501,1-Dichloropropene 0.50 ug/L 12/30/24 15:33 1<0.50di-Isopropyl ether 200 ug/L 12/30/24 15:33 1<200 *+ cnEthanol 0.50 ug/L 12/30/24 15:33 1<0.50Ethylbenzene 0.50 ug/L 12/30/24 15:33 1<0.50Hexachlorobutadiene 0.50 ug/L 12/30/24 15:33 1<0.50Isopropylbenzene 0.80 ug/L 12/30/24 15:33 1<0.80Methylene Chloride 0.50 ug/L 12/30/24 15:33 11.0Methyl tert-butyl ether 0.50 ug/L 12/30/24 15:33 1<0.50Naphthalene 0.50 ug/L 12/30/24 15:33 1<0.50n-Butylbenzene 0.50 ug/L 12/30/24 15:33 1<0.50N-Propylbenzene 5.0 ug/L 12/30/24 15:33 1<5.02-Butanone 0.50 ug/L 12/30/24 15:33 1<0.50p-Isopropyltoluene 0.50 ug/L 12/30/24 15:33 1<0.50sec-Butylbenzene 0.50 ug/L 12/30/24 15:33 1<0.50Styrene 0.50 ug/L 12/30/24 15:33 1<0.50tert-Butylbenzene 0.50 ug/L 12/30/24 15:33 1<0.501,1,1,2-Tetrachloroethane 0.50 ug/L 12/30/24 15:33 1<0.501,1,2,2-Tetrachloroethane 0.50 ug/L 12/30/24 15:33 1<0.50Tetrachloroethene 5.0 ug/L 12/30/24 15:33 1<5.02-Hexanone Eurofins Lancaster Laboratories Environment Testing, LLC Page 17 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-5Client Sample ID: MW-17D Matrix: GroundwaterDate Collected: 12/17/24 13:40 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <0.50 0.50 ug/L 12/30/24 15:33 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Toluene 0.50 ug/L 12/30/24 15:33 1<0.50trans-1,2-Dichloroethene 0.50 ug/L 12/30/24 15:33 1<0.50trans-1,3-Dichloropropene 0.50 ug/L 12/30/24 15:33 1<0.501,2,3-Trichlorobenzene 0.50 ug/L 12/30/24 15:33 1<0.501,2,4-Trichlorobenzene 0.50 ug/L 12/30/24 15:33 1<0.501,1,1-Trichloroethane 5.0 ug/L 12/30/24 15:33 1<5.04-Methyl-2-pentanone (MIBK) 0.50 ug/L 12/30/24 15:33 1<0.501,1,2-Trichloroethane 12 ug/L 12/30/24 15:33 121*+ cnAcetone 0.50 ug/L 12/30/24 15:33 1<0.50Trichloroethene 0.50 ug/L 12/30/24 15:33 1<0.50Trichlorofluoromethane 2.0 ug/L 12/30/24 15:33 1<2.01,2,3-Trichloropropane 0.50 ug/L 12/30/24 15:33 1<0.501,2,4-Trimethylbenzene 0.50 ug/L 12/30/24 15:33 1<0.501,3,5-Trimethylbenzene 0.50 ug/L 12/30/24 15:33 1<0.50Vinyl chloride 0.50 ug/L 12/30/24 15:33 1<0.50Xylenes, Total 0.80 ug/L 12/30/24 15:33 1<0.80Vinyl acetate 4-Bromofluorobenzene (Surr)89 70-130 12/30/24 15:33 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)117 12/30/24 15:33 170-130 1,2-Dichloroethane-d4 (Surr)122 12/30/24 15:33 170-130 Toluene-d8 (Surr)93 12/30/24 15:33 170-130 Lab Sample ID: 410-201872-6Client Sample ID: MW-17 Matrix: GroundwaterDate Collected: 12/17/24 13:32 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL <25 25 ug/L 12/30/24 21:57 50 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Bromobenzene 25 ug/L 12/30/24 21:57 50<25Bromochloromethane 25 ug/L 12/30/24 21:57 50<25Bromodichloromethane 50 ug/L 12/30/24 21:57 50<50Bromoform 25 ug/L 12/30/24 21:57 50<25Bromomethane 25 ug/L 12/30/24 21:57 50<25Carbon tetrachloride 25 ug/L 12/30/24 21:57 50<25Chlorobenzene 25 ug/L 12/30/24 21:57 50<25Chloroethane 25 ug/L 12/30/24 21:57 50<25Chloroform 40 ug/L 12/30/24 21:57 50<40Chloromethane 25 ug/L 12/30/24 21:57 50<252-Chlorotoluene 25 ug/L 12/30/24 21:57 50<254-Chlorotoluene 25 ug/L 12/30/24 21:57 50<25cis-1,2-Dichloroethene 25 ug/L 12/30/24 21:57 50<25cis-1,3-Dichloropropene 25 ug/L 12/30/24 21:57 50<25Dibromochloromethane 100 ug/L 12/30/24 21:57 50<1001,2-Dibromo-3-Chloropropane 25 ug/L 12/30/24 21:57 50<251,2-Dibromoethane 25 ug/L 12/30/24 21:57 50<25Dibromomethane 25 ug/L 12/30/24 21:57 50<251,2-Dichlorobenzene 25 ug/L 12/30/24 21:57 50<251,3-Dichlorobenzene Eurofins Lancaster Laboratories Environment Testing, LLC Page 18 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-6Client Sample ID: MW-17 Matrix: GroundwaterDate Collected: 12/17/24 13:32 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <25 25 ug/L 12/30/24 21:57 50 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,4-Dichlorobenzene 25 ug/L 12/30/24 21:57 50<25Dichlorodifluoromethane 25 ug/L 12/30/24 21:57 50<251,1-Dichloroethane 25 ug/L 12/30/24 21:57 50<251,2-Dichloroethane 25 ug/L 12/30/24 21:57 50<251,1-Dichloroethene 25 ug/L 12/30/24 21:57 50<251,2-Dichloropropane 25 ug/L 12/30/24 21:57 50<251,3-Dichloropropane 25 ug/L 12/30/24 21:57 50<252,2-Dichloropropane 25 ug/L 12/30/24 21:57 50<251,1-Dichloropropene 25 ug/L 12/30/24 21:57 50430di-Isopropyl ether 10000 ug/L 12/30/24 21:57 50<10000 *+Ethanol 25 ug/L 12/30/24 21:57 50<25Hexachlorobutadiene 25 ug/L 12/30/24 21:57 5051Isopropylbenzene 40 ug/L 12/30/24 21:57 50<40Methylene Chloride 25 ug/L 12/30/24 21:57 50350Naphthalene 25 ug/L 12/30/24 21:57 50<25n-Butylbenzene 25 ug/L 12/30/24 21:57 50120N-Propylbenzene 250 ug/L 12/30/24 21:57 50<2502-Butanone 25 ug/L 12/30/24 21:57 50<25p-Isopropyltoluene 25 ug/L 12/30/24 21:57 50<25sec-Butylbenzene 25 ug/L 12/30/24 21:57 50<25Styrene 25 ug/L 12/30/24 21:57 50<25tert-Butylbenzene 25 ug/L 12/30/24 21:57 50<251,1,1,2-Tetrachloroethane 25 ug/L 12/30/24 21:57 50<251,1,2,2-Tetrachloroethane 25 ug/L 12/30/24 21:57 50<25Tetrachloroethene 250 ug/L 12/30/24 21:57 50<2502-Hexanone 25 ug/L 12/30/24 21:57 50<25Toluene 25 ug/L 12/30/24 21:57 50<25trans-1,2-Dichloroethene 25 ug/L 12/30/24 21:57 50<25trans-1,3-Dichloropropene 25 ug/L 12/30/24 21:57 50<251,2,3-Trichlorobenzene 25 ug/L 12/30/24 21:57 50<251,2,4-Trichlorobenzene 25 ug/L 12/30/24 21:57 50<251,1,1-Trichloroethane 250 ug/L 12/30/24 21:57 50<2504-Methyl-2-pentanone (MIBK) 25 ug/L 12/30/24 21:57 50<251,1,2-Trichloroethane 600 ug/L 12/30/24 21:57 50<600Acetone 25 ug/L 12/30/24 21:57 50<25Trichloroethene 25 ug/L 12/30/24 21:57 50<25Trichlorofluoromethane 100 ug/L 12/30/24 21:57 50<1001,2,3-Trichloropropane 25 ug/L 12/30/24 21:57 50<251,2,4-Trimethylbenzene 25 ug/L 12/30/24 21:57 501901,3,5-Trimethylbenzene 25 ug/L 12/30/24 21:57 50<25Vinyl chloride 25 ug/L 12/30/24 21:57 5083Xylenes, Total 40 ug/L 12/30/24 21:57 50<40Vinyl acetate 4-Bromofluorobenzene (Surr)95 70-130 12/30/24 21:57 50 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)107 12/30/24 21:57 5070-130 1,2-Dichloroethane-d4 (Surr)112 12/30/24 21:57 5070-130 Toluene-d8 (Surr)97 12/30/24 21:57 5070-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 19 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-6Client Sample ID: MW-17 Matrix: GroundwaterDate Collected: 12/17/24 13:32 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL 2600 250 ug/L 12/30/24 21:33 500 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 250 ug/L 12/30/24 21:33 5001500Ethylbenzene 250 ug/L 12/30/24 21:33 5003100Methyl tert-butyl ether 4-Bromofluorobenzene (Surr)90 70-130 12/30/24 21:33 500 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)112 12/30/24 21:33 50070-130 1,2-Dichloroethane-d4 (Surr)115 12/30/24 21:33 50070-130 Toluene-d8 (Surr)94 12/30/24 21:33 50070-130 Lab Sample ID: 410-201872-7Client Sample ID: MW-5SR Matrix: GroundwaterDate Collected: 12/18/24 08:49 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL <5.0 5.0 ug/L 12/30/24 22:21 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Bromobenzene 5.0 ug/L 12/30/24 22:21 10<5.0Bromochloromethane 5.0 ug/L 12/30/24 22:21 10<5.0Bromodichloromethane 10 ug/L 12/30/24 22:21 10<10 *+ cnBromoform 5.0 ug/L 12/30/24 22:21 10<5.0Bromomethane 5.0 ug/L 12/30/24 22:21 10<5.0Carbon tetrachloride 5.0 ug/L 12/30/24 22:21 10<5.0Chlorobenzene 5.0 ug/L 12/30/24 22:21 10<5.0Chloroethane 5.0 ug/L 12/30/24 22:21 10<5.0Chloroform 8.0 ug/L 12/30/24 22:21 10<8.0Chloromethane 5.0 ug/L 12/30/24 22:21 10<5.02-Chlorotoluene 5.0 ug/L 12/30/24 22:21 10<5.04-Chlorotoluene 5.0 ug/L 12/30/24 22:21 10<5.0cis-1,2-Dichloroethene 5.0 ug/L 12/30/24 22:21 10<5.0cis-1,3-Dichloropropene 5.0 ug/L 12/30/24 22:21 10<5.0Dibromochloromethane 20 ug/L 12/30/24 22:21 10<201,2-Dibromo-3-Chloropropane 5.0 ug/L 12/30/24 22:21 10<5.01,2-Dibromoethane 5.0 ug/L 12/30/24 22:21 10<5.0Dibromomethane 5.0 ug/L 12/30/24 22:21 10<5.01,2-Dichlorobenzene 5.0 ug/L 12/30/24 22:21 10<5.01,3-Dichlorobenzene 5.0 ug/L 12/30/24 22:21 10<5.01,4-Dichlorobenzene 5.0 ug/L 12/30/24 22:21 10<5.0 *+ cnDichlorodifluoromethane 5.0 ug/L 12/30/24 22:21 10<5.01,1-Dichloroethane 5.0 ug/L 12/30/24 22:21 10<5.01,2-Dichloroethane 5.0 ug/L 12/30/24 22:21 10<5.01,1-Dichloroethene 5.0 ug/L 12/30/24 22:21 10<5.01,2-Dichloropropane 5.0 ug/L 12/30/24 22:21 10<5.01,3-Dichloropropane 5.0 ug/L 12/30/24 22:21 10<5.02,2-Dichloropropane 5.0 ug/L 12/30/24 22:21 10<5.01,1-Dichloropropene 5.0 ug/L 12/30/24 22:21 1024di-Isopropyl ether 2000 ug/L 12/30/24 22:21 10<2000 *+ cnEthanol 5.0 ug/L 12/30/24 22:21 10240Ethylbenzene 5.0 ug/L 12/30/24 22:21 10<5.0Hexachlorobutadiene 5.0 ug/L 12/30/24 22:21 10120Isopropylbenzene Eurofins Lancaster Laboratories Environment Testing, LLC Page 20 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-7Client Sample ID: MW-5SR Matrix: GroundwaterDate Collected: 12/18/24 08:49 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <8.0 8.0 ug/L 12/30/24 22:21 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Methylene Chloride 5.0 ug/L 12/30/24 22:21 10150Methyl tert-butyl ether 5.0 ug/L 12/30/24 22:21 1018n-Butylbenzene 5.0 ug/L 12/30/24 22:21 10250N-Propylbenzene 50 ug/L 12/30/24 22:21 10<502-Butanone 5.0 ug/L 12/30/24 22:21 10<5.0p-Isopropyltoluene 5.0 ug/L 12/30/24 22:21 1014sec-Butylbenzene 5.0 ug/L 12/30/24 22:21 10<5.0Styrene 5.0 ug/L 12/30/24 22:21 10<5.0tert-Butylbenzene 5.0 ug/L 12/30/24 22:21 10<5.01,1,1,2-Tetrachloroethane 5.0 ug/L 12/30/24 22:21 10<5.01,1,2,2-Tetrachloroethane 5.0 ug/L 12/30/24 22:21 10<5.0Tetrachloroethene 50 ug/L 12/30/24 22:21 10<502-Hexanone 5.0 ug/L 12/30/24 22:21 1026Toluene 5.0 ug/L 12/30/24 22:21 10<5.0trans-1,2-Dichloroethene 5.0 ug/L 12/30/24 22:21 10<5.0trans-1,3-Dichloropropene 5.0 ug/L 12/30/24 22:21 10<5.01,2,3-Trichlorobenzene 5.0 ug/L 12/30/24 22:21 10<5.01,2,4-Trichlorobenzene 5.0 ug/L 12/30/24 22:21 10<5.01,1,1-Trichloroethane 50 ug/L 12/30/24 22:21 10<504-Methyl-2-pentanone (MIBK) 5.0 ug/L 12/30/24 22:21 10<5.01,1,2-Trichloroethane 120 ug/L 12/30/24 22:21 10<120 *+ cnAcetone 5.0 ug/L 12/30/24 22:21 10<5.0Trichloroethene 5.0 ug/L 12/30/24 22:21 10<5.0Trichlorofluoromethane 20 ug/L 12/30/24 22:21 10<201,2,3-Trichloropropane 5.0 ug/L 12/30/24 22:21 10<5.01,2,4-Trimethylbenzene 5.0 ug/L 12/30/24 22:21 108.61,3,5-Trimethylbenzene 5.0 ug/L 12/30/24 22:21 10<5.0Vinyl chloride 5.0 ug/L 12/30/24 22:21 1054Xylenes, Total 8.0 ug/L 12/30/24 22:21 10<8.0Vinyl acetate 4-Bromofluorobenzene (Surr)99 70-130 12/30/24 22:21 10 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)105 12/30/24 22:21 1070-130 1,2-Dichloroethane-d4 (Surr)104 12/30/24 22:21 1070-130 Toluene-d8 (Surr)97 12/30/24 22:21 1070-130 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL 580 50 ug/L 12/30/24 22:45 100 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 50 ug/L 12/30/24 22:45 100490Naphthalene 4-Bromofluorobenzene (Surr)95 70-130 12/30/24 22:45 100 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)105 12/30/24 22:45 10070-130 1,2-Dichloroethane-d4 (Surr)109 12/30/24 22:45 10070-130 Toluene-d8 (Surr)99 12/30/24 22:45 10070-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 21 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-8Client Sample ID: MW-5DR Matrix: GroundwaterDate Collected: 12/18/24 09:26 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL <0.50 0.50 ug/L 12/30/24 15:57 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 0.50 ug/L 12/30/24 15:57 1<0.50Bromobenzene 0.50 ug/L 12/30/24 15:57 1<0.50Bromochloromethane 0.50 ug/L 12/30/24 15:57 1<0.50Bromodichloromethane 1.0 ug/L 12/30/24 15:57 1<1.0 cnBromoform 0.50 ug/L 12/30/24 15:57 1<0.50Bromomethane 0.50 ug/L 12/30/24 15:57 1<0.50Carbon tetrachloride 0.50 ug/L 12/30/24 15:57 1<0.50Chlorobenzene 0.50 ug/L 12/30/24 15:57 1<0.50Chloroethane 0.50 ug/L 12/30/24 15:57 1<0.50Chloroform 0.80 ug/L 12/30/24 15:57 1<0.80Chloromethane 0.50 ug/L 12/30/24 15:57 1<0.502-Chlorotoluene 0.50 ug/L 12/30/24 15:57 1<0.504-Chlorotoluene 0.50 ug/L 12/30/24 15:57 1<0.50cis-1,2-Dichloroethene 0.50 ug/L 12/30/24 15:57 1<0.50cis-1,3-Dichloropropene 0.50 ug/L 12/30/24 15:57 1<0.50Dibromochloromethane 2.0 ug/L 12/30/24 15:57 1<2.01,2-Dibromo-3-Chloropropane 0.50 ug/L 12/30/24 15:57 1<0.501,2-Dibromoethane 0.50 ug/L 12/30/24 15:57 1<0.50Dibromomethane 0.50 ug/L 12/30/24 15:57 1<0.501,2-Dichlorobenzene 0.50 ug/L 12/30/24 15:57 1<0.501,3-Dichlorobenzene 0.50 ug/L 12/30/24 15:57 1<0.501,4-Dichlorobenzene 0.50 ug/L 12/30/24 15:57 1<0.50 cnDichlorodifluoromethane 0.50 ug/L 12/30/24 15:57 1<0.501,1-Dichloroethane 0.50 ug/L 12/30/24 15:57 1211,2-Dichloroethane 0.50 ug/L 12/30/24 15:57 1<0.501,1-Dichloroethene 0.50 ug/L 12/30/24 15:57 1<0.501,2-Dichloropropane 0.50 ug/L 12/30/24 15:57 1<0.501,3-Dichloropropane 0.50 ug/L 12/30/24 15:57 1<0.502,2-Dichloropropane 0.50 ug/L 12/30/24 15:57 1<0.501,1-Dichloropropene 200 ug/L 12/30/24 15:57 1<200 *+ cnEthanol 0.50 ug/L 12/30/24 15:57 1<0.50Ethylbenzene 0.50 ug/L 12/30/24 15:57 1<0.50Hexachlorobutadiene 0.50 ug/L 12/30/24 15:57 1<0.50Isopropylbenzene 0.80 ug/L 12/30/24 15:57 1<0.80Methylene Chloride 0.50 ug/L 12/30/24 15:57 1<0.50Naphthalene 0.50 ug/L 12/30/24 15:57 1<0.50n-Butylbenzene 0.50 ug/L 12/30/24 15:57 1<0.50N-Propylbenzene 5.0 ug/L 12/30/24 15:57 1<5.02-Butanone 0.50 ug/L 12/30/24 15:57 1<0.50p-Isopropyltoluene 0.50 ug/L 12/30/24 15:57 10.50sec-Butylbenzene 0.50 ug/L 12/30/24 15:57 1<0.50Styrene 0.50 ug/L 12/30/24 15:57 12.9tert-Butylbenzene 0.50 ug/L 12/30/24 15:57 1<0.501,1,1,2-Tetrachloroethane 0.50 ug/L 12/30/24 15:57 1<0.501,1,2,2-Tetrachloroethane 0.50 ug/L 12/30/24 15:57 1<0.50Tetrachloroethene 5.0 ug/L 12/30/24 15:57 1<5.02-Hexanone 0.50 ug/L 12/30/24 15:57 1<0.50Toluene 0.50 ug/L 12/30/24 15:57 1<0.50trans-1,2-Dichloroethene Eurofins Lancaster Laboratories Environment Testing, LLC Page 22 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-8Client Sample ID: MW-5DR Matrix: GroundwaterDate Collected: 12/18/24 09:26 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <0.50 0.50 ug/L 12/30/24 15:57 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier trans-1,3-Dichloropropene 0.50 ug/L 12/30/24 15:57 1<0.501,2,3-Trichlorobenzene 0.50 ug/L 12/30/24 15:57 1<0.501,2,4-Trichlorobenzene 0.50 ug/L 12/30/24 15:57 1<0.501,1,1-Trichloroethane 5.0 ug/L 12/30/24 15:57 1<5.04-Methyl-2-pentanone (MIBK) 0.50 ug/L 12/30/24 15:57 1<0.501,1,2-Trichloroethane 12 ug/L 12/30/24 15:57 1<12 cnAcetone 0.50 ug/L 12/30/24 15:57 1<0.50Trichloroethene 0.50 ug/L 12/30/24 15:57 1<0.50Trichlorofluoromethane 2.0 ug/L 12/30/24 15:57 1<2.01,2,3-Trichloropropane 0.50 ug/L 12/30/24 15:57 1<0.501,2,4-Trimethylbenzene 0.50 ug/L 12/30/24 15:57 1<0.501,3,5-Trimethylbenzene 0.50 ug/L 12/30/24 15:57 1<0.50Vinyl chloride 0.50 ug/L 12/30/24 15:57 1<0.50Xylenes, Total 0.80 ug/L 12/30/24 15:57 1<0.80Vinyl acetate 4-Bromofluorobenzene (Surr)93 70-130 12/30/24 15:57 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)106 12/30/24 15:57 170-130 1,2-Dichloroethane-d4 (Surr)111 12/30/24 15:57 170-130 Toluene-d8 (Surr)96 12/30/24 15:57 170-130 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL 110 cn 50 ug/L 12/31/24 14:22 100 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier di-Isopropyl ether 50 ug/L 12/31/24 14:22 100730cnMethyl tert-butyl ether 4-Bromofluorobenzene (Surr)87 cn 70-130 12/31/24 14:22 100 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)116 cn 12/31/24 14:22 10070-130 1,2-Dichloroethane-d4 (Surr)119 cn 12/31/24 14:22 10070-130 Toluene-d8 (Surr)94 cn 12/31/24 14:22 10070-130 Lab Sample ID: 410-201872-9Client Sample ID: MW-27 Matrix: GroundwaterDate Collected: 12/18/24 10:09 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL <10 F1 10 ug/L 12/31/24 11:58 20 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Bromobenzene 10 ug/L 12/31/24 11:58 20<10 F1Bromochloromethane 10 ug/L 12/31/24 11:58 20<10 F1Bromodichloromethane 20 ug/L 12/31/24 11:58 20<20 F1 *+ cnBromoform 10 ug/L 12/31/24 11:58 20<10Bromomethane 10 ug/L 12/31/24 11:58 20<10 F1Carbon tetrachloride 10 ug/L 12/31/24 11:58 20<10 F1Chlorobenzene 10 ug/L 12/31/24 11:58 20<10Chloroethane 10 ug/L 12/31/24 11:58 20<10 F1Chloroform 16 ug/L 12/31/24 11:58 20<16Chloromethane 10 ug/L 12/31/24 11:58 20<10 F12-Chlorotoluene 10 ug/L 12/31/24 11:58 20<10 F14-Chlorotoluene Eurofins Lancaster Laboratories Environment Testing, LLC Page 23 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-9Client Sample ID: MW-27 Matrix: GroundwaterDate Collected: 12/18/24 10:09 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <10 F1 10 ug/L 12/31/24 11:58 20 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier cis-1,2-Dichloroethene 10 ug/L 12/31/24 11:58 20<10 F1cis-1,3-Dichloropropene 10 ug/L 12/31/24 11:58 20<10 F1 cnDibromochloromethane 40 ug/L 12/31/24 11:58 20<40 F11,2-Dibromo-3-Chloropropane 10 ug/L 12/31/24 11:58 20<10 F11,2-Dibromoethane 10 ug/L 12/31/24 11:58 20<10 F1Dibromomethane 10 ug/L 12/31/24 11:58 20<10 F11,2-Dichlorobenzene 10 ug/L 12/31/24 11:58 20<10 F11,3-Dichlorobenzene 10 ug/L 12/31/24 11:58 20<10 F11,4-Dichlorobenzene 10 ug/L 12/31/24 11:58 20<10 F1 *+ cnDichlorodifluoromethane 10 ug/L 12/31/24 11:58 20<10 F11,1-Dichloroethane 10 ug/L 12/31/24 11:58 20<10 F11,2-Dichloroethane 10 ug/L 12/31/24 11:58 20<10 F11,1-Dichloroethene 10 ug/L 12/31/24 11:58 20<10 F11,2-Dichloropropane 10 ug/L 12/31/24 11:58 20<10 F11,3-Dichloropropane 10 ug/L 12/31/24 11:58 20<10 F12,2-Dichloropropane 10 ug/L 12/31/24 11:58 20<101,1-Dichloropropene 10 ug/L 12/31/24 11:58 20<10di-Isopropyl ether 4000 ug/L 12/31/24 11:58 20<4000 *+ cnEthanol 10 ug/L 12/31/24 11:58 2055F1Ethylbenzene 10 ug/L 12/31/24 11:58 20<10 F1Hexachlorobutadiene 10 ug/L 12/31/24 11:58 20<10 F1Isopropylbenzene 16 ug/L 12/31/24 11:58 20<16 F1Methylene Chloride 10 ug/L 12/31/24 11:58 2070F1Methyl tert-butyl ether 10 ug/L 12/31/24 11:58 20260F1Naphthalene 10 ug/L 12/31/24 11:58 20<10 F1n-Butylbenzene 10 ug/L 12/31/24 11:58 2015F1N-Propylbenzene 100 ug/L 12/31/24 11:58 20<100 F12-Butanone 10 ug/L 12/31/24 11:58 20<10 F1p-Isopropyltoluene 10 ug/L 12/31/24 11:58 20<10 F1sec-Butylbenzene 10 ug/L 12/31/24 11:58 20<10 F1Styrene 10 ug/L 12/31/24 11:58 20<10 F1tert-Butylbenzene 10 ug/L 12/31/24 11:58 20<10 F11,1,1,2-Tetrachloroethane 10 ug/L 12/31/24 11:58 20<10 F11,1,2,2-Tetrachloroethane 10 ug/L 12/31/24 11:58 20<10 F1Tetrachloroethene 100 ug/L 12/31/24 11:58 20<100 F12-Hexanone 10 ug/L 12/31/24 11:58 20<10 F1Toluene 10 ug/L 12/31/24 11:58 20<10 F1trans-1,2-Dichloroethene 10 ug/L 12/31/24 11:58 20<10 F1trans-1,3-Dichloropropene 10 ug/L 12/31/24 11:58 20<10 F11,2,3-Trichlorobenzene 10 ug/L 12/31/24 11:58 20<10 F11,2,4-Trichlorobenzene 10 ug/L 12/31/24 11:58 20<10 F11,1,1-Trichloroethane 100 ug/L 12/31/24 11:58 20<100 F14-Methyl-2-pentanone (MIBK) 10 ug/L 12/31/24 11:58 20<10 F11,1,2-Trichloroethane 240 ug/L 12/31/24 11:58 20<240 F1 *+ cnAcetone 10 ug/L 12/31/24 11:58 20<10 F1Trichloroethene 10 ug/L 12/31/24 11:58 20<10 F2Trichlorofluoromethane 40 ug/L 12/31/24 11:58 20<40 F11,2,3-Trichloropropane 10 ug/L 12/31/24 11:58 20190F11,2,4-Trimethylbenzene Eurofins Lancaster Laboratories Environment Testing, LLC Page 24 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-9Client Sample ID: MW-27 Matrix: GroundwaterDate Collected: 12/18/24 10:09 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL 38 F1 10 ug/L 12/31/24 11:58 20 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,3,5-Trimethylbenzene 10 ug/L 12/31/24 11:58 20<10Vinyl chloride 10 ug/L 12/31/24 11:58 20140F1Xylenes, Total 16 ug/L 12/31/24 11:58 20<16Vinyl acetate 4-Bromofluorobenzene (Surr)100 70-130 12/31/24 11:58 20 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)114 12/31/24 11:58 2070-130 1,2-Dichloroethane-d4 (Surr)119 12/31/24 11:58 2070-130 Toluene-d8 (Surr)95 12/31/24 11:58 2070-130 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL 2100 100 ug/L 12/31/24 13:58 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 4-Bromofluorobenzene (Surr)90 70-130 12/31/24 13:58 200 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)112 12/31/24 13:58 20070-130 1,2-Dichloroethane-d4 (Surr)115 12/31/24 13:58 20070-130 Toluene-d8 (Surr)94 12/31/24 13:58 20070-130 Lab Sample ID: 410-201872-10Client Sample ID: MW-11D Matrix: GroundwaterDate Collected: 12/18/24 11:30 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL 7.6 0.50 ug/L 12/30/24 16:21 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 0.50 ug/L 12/30/24 16:21 1<0.50Bromobenzene 0.50 ug/L 12/30/24 16:21 1<0.50Bromochloromethane 0.50 ug/L 12/30/24 16:21 1<0.50Bromodichloromethane 1.0 ug/L 12/30/24 16:21 1<1.0 cnBromoform 0.50 ug/L 12/30/24 16:21 1<0.50Bromomethane 0.50 ug/L 12/30/24 16:21 1<0.50Carbon tetrachloride 0.50 ug/L 12/30/24 16:21 1<0.50Chlorobenzene 0.50 ug/L 12/30/24 16:21 1<0.50Chloroethane 0.50 ug/L 12/30/24 16:21 1<0.50Chloroform 0.80 ug/L 12/30/24 16:21 1<0.80Chloromethane 0.50 ug/L 12/30/24 16:21 1<0.502-Chlorotoluene 0.50 ug/L 12/30/24 16:21 1<0.504-Chlorotoluene 0.50 ug/L 12/30/24 16:21 1<0.50cis-1,2-Dichloroethene 0.50 ug/L 12/30/24 16:21 1<0.50cis-1,3-Dichloropropene 0.50 ug/L 12/30/24 16:21 1<0.50Dibromochloromethane 2.0 ug/L 12/30/24 16:21 1<2.01,2-Dibromo-3-Chloropropane 0.50 ug/L 12/30/24 16:21 1<0.501,2-Dibromoethane 0.50 ug/L 12/30/24 16:21 1<0.50Dibromomethane 0.50 ug/L 12/30/24 16:21 1<0.501,2-Dichlorobenzene 0.50 ug/L 12/30/24 16:21 1<0.501,3-Dichlorobenzene 0.50 ug/L 12/30/24 16:21 1<0.501,4-Dichlorobenzene 0.50 ug/L 12/30/24 16:21 1<0.50 cnDichlorodifluoromethane 0.50 ug/L 12/30/24 16:21 1<0.501,1-Dichloroethane Eurofins Lancaster Laboratories Environment Testing, LLC Page 25 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-10Client Sample ID: MW-11D Matrix: GroundwaterDate Collected: 12/18/24 11:30 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <0.50 0.50 ug/L 12/30/24 16:21 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,2-Dichloroethane 0.50 ug/L 12/30/24 16:21 1<0.501,1-Dichloroethene 0.50 ug/L 12/30/24 16:21 1<0.501,2-Dichloropropane 0.50 ug/L 12/30/24 16:21 1<0.501,3-Dichloropropane 0.50 ug/L 12/30/24 16:21 1<0.502,2-Dichloropropane 0.50 ug/L 12/30/24 16:21 1<0.501,1-Dichloropropene 0.50 ug/L 12/30/24 16:21 19.1di-Isopropyl ether 200 ug/L 12/30/24 16:21 1<200 *+ cnEthanol 0.50 ug/L 12/30/24 16:21 1<0.50Ethylbenzene 0.50 ug/L 12/30/24 16:21 1<0.50Hexachlorobutadiene 0.50 ug/L 12/30/24 16:21 11.1Isopropylbenzene 0.80 ug/L 12/30/24 16:21 1<0.80Methylene Chloride 0.50 ug/L 12/30/24 16:21 11.6Naphthalene 0.50 ug/L 12/30/24 16:21 1<0.50n-Butylbenzene 0.50 ug/L 12/30/24 16:21 1<0.50N-Propylbenzene 5.0 ug/L 12/30/24 16:21 1<5.02-Butanone 0.50 ug/L 12/30/24 16:21 1<0.50p-Isopropyltoluene 0.50 ug/L 12/30/24 16:21 13.5sec-Butylbenzene 0.50 ug/L 12/30/24 16:21 1<0.50Styrene 0.50 ug/L 12/30/24 16:21 10.57tert-Butylbenzene 0.50 ug/L 12/30/24 16:21 1<0.501,1,1,2-Tetrachloroethane 0.50 ug/L 12/30/24 16:21 1<0.501,1,2,2-Tetrachloroethane 0.50 ug/L 12/30/24 16:21 1<0.50Tetrachloroethene 5.0 ug/L 12/30/24 16:21 1<5.02-Hexanone 0.50 ug/L 12/30/24 16:21 1<0.50Toluene 0.50 ug/L 12/30/24 16:21 1<0.50trans-1,2-Dichloroethene 0.50 ug/L 12/30/24 16:21 1<0.50trans-1,3-Dichloropropene 0.50 ug/L 12/30/24 16:21 1<0.501,2,3-Trichlorobenzene 0.50 ug/L 12/30/24 16:21 1<0.501,2,4-Trichlorobenzene 0.50 ug/L 12/30/24 16:21 1<0.501,1,1-Trichloroethane 5.0 ug/L 12/30/24 16:21 1<5.04-Methyl-2-pentanone (MIBK) 0.50 ug/L 12/30/24 16:21 1<0.501,1,2-Trichloroethane 12 ug/L 12/30/24 16:21 1<12 cnAcetone 0.50 ug/L 12/30/24 16:21 1<0.50Trichloroethene 0.50 ug/L 12/30/24 16:21 1<0.50Trichlorofluoromethane 2.0 ug/L 12/30/24 16:21 1<2.01,2,3-Trichloropropane 0.50 ug/L 12/30/24 16:21 1<0.501,2,4-Trimethylbenzene 0.50 ug/L 12/30/24 16:21 1<0.501,3,5-Trimethylbenzene 0.50 ug/L 12/30/24 16:21 1<0.50Vinyl chloride 0.50 ug/L 12/30/24 16:21 1<0.50Xylenes, Total 0.80 ug/L 12/30/24 16:21 1<0.80Vinyl acetate 4-Bromofluorobenzene (Surr)97 70-130 12/30/24 16:21 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)110 12/30/24 16:21 170-130 1,2-Dichloroethane-d4 (Surr)113 12/30/24 16:21 170-130 Toluene-d8 (Surr)92 12/30/24 16:21 170-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 26 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-10Client Sample ID: MW-11D Matrix: GroundwaterDate Collected: 12/18/24 11:30 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds - DL RL 100 5.0 ug/L 12/31/24 11:34 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Methyl tert-butyl ether 4-Bromofluorobenzene (Surr)88 70-130 12/31/24 11:34 10 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)121 12/31/24 11:34 1070-130 1,2-Dichloroethane-d4 (Surr)120 12/31/24 11:34 1070-130 Toluene-d8 (Surr)91 12/31/24 11:34 1070-130 Lab Sample ID: 410-201872-11Client Sample ID: Trip Blank Matrix: WaterDate Collected: 12/17/24 00:00 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds RL <0.50 0.50 ug/L 12/30/24 15:09 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Benzene 0.50 ug/L 12/30/24 15:09 1<0.50Bromobenzene 0.50 ug/L 12/30/24 15:09 1<0.50Bromochloromethane 0.50 ug/L 12/30/24 15:09 1<0.50Bromodichloromethane 1.0 ug/L 12/30/24 15:09 1<1.0 *+ cnBromoform 0.50 ug/L 12/30/24 15:09 1<0.50Bromomethane 0.50 ug/L 12/30/24 15:09 1<0.50Carbon tetrachloride 0.50 ug/L 12/30/24 15:09 1<0.50Chlorobenzene 0.50 ug/L 12/30/24 15:09 1<0.50Chloroethane 0.50 ug/L 12/30/24 15:09 1<0.50Chloroform 0.80 ug/L 12/30/24 15:09 1<0.80Chloromethane 0.50 ug/L 12/30/24 15:09 1<0.502-Chlorotoluene 0.50 ug/L 12/30/24 15:09 1<0.504-Chlorotoluene 0.50 ug/L 12/30/24 15:09 1<0.50cis-1,2-Dichloroethene 0.50 ug/L 12/30/24 15:09 1<0.50cis-1,3-Dichloropropene 0.50 ug/L 12/30/24 15:09 1<0.50Dibromochloromethane 2.0 ug/L 12/30/24 15:09 1<2.01,2-Dibromo-3-Chloropropane 0.50 ug/L 12/30/24 15:09 1<0.501,2-Dibromoethane 0.50 ug/L 12/30/24 15:09 1<0.50Dibromomethane 0.50 ug/L 12/30/24 15:09 1<0.501,2-Dichlorobenzene 0.50 ug/L 12/30/24 15:09 1<0.501,3-Dichlorobenzene 0.50 ug/L 12/30/24 15:09 1<0.501,4-Dichlorobenzene 0.50 ug/L 12/30/24 15:09 1<0.50 *+ cnDichlorodifluoromethane 0.50 ug/L 12/30/24 15:09 1<0.501,1-Dichloroethane 0.50 ug/L 12/30/24 15:09 1<0.501,2-Dichloroethane 0.50 ug/L 12/30/24 15:09 1<0.501,1-Dichloroethene 0.50 ug/L 12/30/24 15:09 1<0.501,2-Dichloropropane 0.50 ug/L 12/30/24 15:09 1<0.501,3-Dichloropropane 0.50 ug/L 12/30/24 15:09 1<0.502,2-Dichloropropane 0.50 ug/L 12/30/24 15:09 1<0.501,1-Dichloropropene 0.50 ug/L 12/30/24 15:09 1<0.50di-Isopropyl ether 200 ug/L 12/30/24 15:09 1<200 *+ cnEthanol 0.50 ug/L 12/30/24 15:09 1<0.50Ethylbenzene 0.50 ug/L 12/30/24 15:09 1<0.50Hexachlorobutadiene 0.50 ug/L 12/30/24 15:09 1<0.50Isopropylbenzene 0.80 ug/L 12/30/24 15:09 1<0.80Methylene Chloride Eurofins Lancaster Laboratories Environment Testing, LLC Page 27 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Lab Sample ID: 410-201872-11Client Sample ID: Trip Blank Matrix: WaterDate Collected: 12/17/24 00:00 Date Received: 12/21/24 10:15 Method: SM 6200 B-2011 - Volatile Organic Compounds (Continued) RL <0.50 0.50 ug/L 12/30/24 15:09 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Methyl tert-butyl ether 0.50 ug/L 12/30/24 15:09 1<0.50Naphthalene 0.50 ug/L 12/30/24 15:09 1<0.50n-Butylbenzene 0.50 ug/L 12/30/24 15:09 1<0.50N-Propylbenzene 5.0 ug/L 12/30/24 15:09 1<5.02-Butanone 0.50 ug/L 12/30/24 15:09 1<0.50p-Isopropyltoluene 0.50 ug/L 12/30/24 15:09 1<0.50sec-Butylbenzene 0.50 ug/L 12/30/24 15:09 1<0.50Styrene 0.50 ug/L 12/30/24 15:09 1<0.50tert-Butylbenzene 0.50 ug/L 12/30/24 15:09 1<0.501,1,1,2-Tetrachloroethane 0.50 ug/L 12/30/24 15:09 1<0.501,1,2,2-Tetrachloroethane 0.50 ug/L 12/30/24 15:09 1<0.50Tetrachloroethene 5.0 ug/L 12/30/24 15:09 1<5.02-Hexanone 0.50 ug/L 12/30/24 15:09 1<0.50Toluene 0.50 ug/L 12/30/24 15:09 1<0.50trans-1,2-Dichloroethene 0.50 ug/L 12/30/24 15:09 1<0.50trans-1,3-Dichloropropene 0.50 ug/L 12/30/24 15:09 1<0.501,2,3-Trichlorobenzene 0.50 ug/L 12/30/24 15:09 1<0.501,2,4-Trichlorobenzene 0.50 ug/L 12/30/24 15:09 1<0.501,1,1-Trichloroethane 5.0 ug/L 12/30/24 15:09 1<5.04-Methyl-2-pentanone (MIBK) 0.50 ug/L 12/30/24 15:09 1<0.501,1,2-Trichloroethane 12 ug/L 12/30/24 15:09 1<12 *+ cnAcetone 0.50 ug/L 12/30/24 15:09 1<0.50Trichloroethene 0.50 ug/L 12/30/24 15:09 1<0.50Trichlorofluoromethane 2.0 ug/L 12/30/24 15:09 1<2.01,2,3-Trichloropropane 0.50 ug/L 12/30/24 15:09 1<0.501,2,4-Trimethylbenzene 0.50 ug/L 12/30/24 15:09 1<0.501,3,5-Trimethylbenzene 0.50 ug/L 12/30/24 15:09 1<0.50Vinyl chloride 0.50 ug/L 12/30/24 15:09 1<0.50Xylenes, Total 0.80 ug/L 12/30/24 15:09 1<0.80Vinyl acetate 4-Bromofluorobenzene (Surr)87 70-130 12/30/24 15:09 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Dibromofluoromethane (Surr)118 12/30/24 15:09 170-130 1,2-Dichloroethane-d4 (Surr)122 12/30/24 15:09 170-130 Toluene-d8 (Surr)94 12/30/24 15:09 170-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 28 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Surrogate Summary Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy 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) BFB DBFM DCA TOL 96 105 109 95410-201872-1 Percent Surrogate Recovery (Acceptance Limits) MW-21D 92 107 113 94410-201872-1 - DL MW-21D 98 105 109 96410-201872-1 MS MW-21D 93 105 108 95410-201872-1 MS MW-21D 97 104 106 97410-201872-1 MSD MW-21D 96 105 109 95410-201872-1 MSD MW-21D 97 103 106 94410-201872-2 MW-21 97 110 112 95410-201872-2 - DL MW-21 101 106 112 95410-201872-3 MW-2S 96 109 113 94410-201872-3 - DL MW-2S 95 107 112 93410-201872-4 MW-2D 86 113 117 92410-201872-4 - DL MW-2D 89 117 122 93410-201872-5 MW-17D 90 112 115 94410-201872-6 - DL MW-17 95 107 112 97410-201872-6 MW-17 99 105 104 97410-201872-7 MW-5SR 95 105 109 99410-201872-7 - DL MW-5SR 93 106 111 96410-201872-8 MW-5DR 87 cn 116 cn 119 cn 94 cn410-201872-8 - DL MW-5DR 100 114 119 95410-201872-9 MW-27 90 112 115 94410-201872-9 - DL MW-27 99 104 116 102410-201872-9 MS MW-27 98 111 118 93410-201872-9 MS MW-27 100 108 115 101410-201872-9 MSD MW-27 97 111 114 93410-201872-9 MSD MW-27 97 110 113 92410-201872-10 MW-11D 88 121 120 91410-201872-10 - DL MW-11D Surrogate Legend BFB = 4-Bromofluorobenzene (Surr) DBFM = Dibromofluoromethane (Surr) DCA = 1,2-Dichloroethane-d4 (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) BFB DBFM DCA TOL 87 118 122 94410-201872-11 Percent Surrogate Recovery (Acceptance Limits) Trip Blank 101 105 108 99LCS 410-590810/1003 Lab Control Sample 87 112 115 92LCS 410-590810/1004 Lab Control Sample 100 108 112 101LCS 410-591176/1003 Lab Control Sample 87 112 117 93LCS 410-591176/1004 Lab Control Sample 87 116 118 94MB 410-590810/6 Method Blank 86 123 122 94MB 410-591176/6 Method Blank Surrogate Legend BFB = 4-Bromofluorobenzene (Surr) DBFM = Dibromofluoromethane (Surr) Eurofins Lancaster Laboratories Environment Testing, LLC Page 29 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Surrogate Summary Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy DCA = 1,2-Dichloroethane-d4 (Surr) TOL = Toluene-d8 (Surr) Eurofins Lancaster Laboratories Environment Testing, LLC Page 30 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds Client Sample ID: Method BlankLab Sample ID: MB 410-590810/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 590810 RL Benzene <0.50 0.50 ug/L 12/30/24 14:45 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.50 0.50 ug/L 12/30/24 14:45 1Bromobenzene <0.50 0.50 ug/L 12/30/24 14:45 1Bromochloromethane <0.50 0.50 ug/L 12/30/24 14:45 1Bromodichloromethane <1.0 1.0 ug/L 12/30/24 14:45 1Bromoform <0.50 0.50 ug/L 12/30/24 14:45 1Bromomethane <0.50 0.50 ug/L 12/30/24 14:45 1Carbon tetrachloride <0.50 0.50 ug/L 12/30/24 14:45 1Chlorobenzene <0.50 0.50 ug/L 12/30/24 14:45 1Chloroethane <0.50 0.50 ug/L 12/30/24 14:45 1Chloroform <0.80 0.80 ug/L 12/30/24 14:45 1Chloromethane <0.50 0.50 ug/L 12/30/24 14:45 12-Chlorotoluene <0.50 0.50 ug/L 12/30/24 14:45 14-Chlorotoluene <0.50 0.50 ug/L 12/30/24 14:45 1cis-1,2-Dichloroethene <0.50 0.50 ug/L 12/30/24 14:45 1cis-1,3-Dichloropropene <0.50 0.50 ug/L 12/30/24 14:45 1Dibromochloromethane <2.0 2.0 ug/L 12/30/24 14:45 11,2-Dibromo-3-Chloropropane <0.50 0.50 ug/L 12/30/24 14:45 11,2-Dibromoethane <0.50 0.50 ug/L 12/30/24 14:45 1Dibromomethane <0.50 0.50 ug/L 12/30/24 14:45 11,2-Dichlorobenzene <0.50 0.50 ug/L 12/30/24 14:45 11,3-Dichlorobenzene <0.50 0.50 ug/L 12/30/24 14:45 11,4-Dichlorobenzene <0.50 0.50 ug/L 12/30/24 14:45 1Dichlorodifluoromethane <0.50 0.50 ug/L 12/30/24 14:45 11,1-Dichloroethane <0.50 0.50 ug/L 12/30/24 14:45 11,2-Dichloroethane <0.50 0.50 ug/L 12/30/24 14:45 11,1-Dichloroethene <0.50 0.50 ug/L 12/30/24 14:45 11,2-Dichloropropane <0.50 0.50 ug/L 12/30/24 14:45 11,3-Dichloropropane <0.50 0.50 ug/L 12/30/24 14:45 12,2-Dichloropropane <0.50 0.50 ug/L 12/30/24 14:45 11,1-Dichloropropene <0.50 0.50 ug/L 12/30/24 14:45 1di-Isopropyl ether <200 200 ug/L 12/30/24 14:45 1Ethanol <0.50 0.50 ug/L 12/30/24 14:45 1Ethylbenzene <0.50 0.50 ug/L 12/30/24 14:45 1Hexachlorobutadiene <0.50 0.50 ug/L 12/30/24 14:45 1Isopropylbenzene <0.80 0.80 ug/L 12/30/24 14:45 1Methylene Chloride <0.50 0.50 ug/L 12/30/24 14:45 1Methyl tert-butyl ether <0.50 0.50 ug/L 12/30/24 14:45 1Naphthalene <0.50 0.50 ug/L 12/30/24 14:45 1n-Butylbenzene <0.50 0.50 ug/L 12/30/24 14:45 1N-Propylbenzene <5.0 5.0 ug/L 12/30/24 14:45 12-Butanone <0.50 0.50 ug/L 12/30/24 14:45 1p-Isopropyltoluene <0.50 0.50 ug/L 12/30/24 14:45 1sec-Butylbenzene <0.50 0.50 ug/L 12/30/24 14:45 1Styrene <0.50 0.50 ug/L 12/30/24 14:45 1tert-Butylbenzene <0.50 0.50 ug/L 12/30/24 14:45 11,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 12/30/24 14:45 11,1,2,2-Tetrachloroethane <0.50 0.50 ug/L 12/30/24 14:45 1Tetrachloroethene Eurofins Lancaster Laboratories Environment Testing, LLC Page 31 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Method BlankLab Sample ID: MB 410-590810/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 590810 RL 2-Hexanone <5.0 5.0 ug/L 12/30/24 14:45 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.50 0.50 ug/L 12/30/24 14:45 1Toluene <0.50 0.50 ug/L 12/30/24 14:45 1trans-1,2-Dichloroethene <0.50 0.50 ug/L 12/30/24 14:45 1trans-1,3-Dichloropropene <0.50 0.50 ug/L 12/30/24 14:45 11,2,3-Trichlorobenzene <0.50 0.50 ug/L 12/30/24 14:45 11,2,4-Trichlorobenzene <0.50 0.50 ug/L 12/30/24 14:45 11,1,1-Trichloroethane <5.0 5.0 ug/L 12/30/24 14:45 14-Methyl-2-pentanone (MIBK) <0.50 0.50 ug/L 12/30/24 14:45 11,1,2-Trichloroethane <12 12 ug/L 12/30/24 14:45 1Acetone <0.50 0.50 ug/L 12/30/24 14:45 1Trichloroethene <0.50 0.50 ug/L 12/30/24 14:45 1Trichlorofluoromethane <2.0 2.0 ug/L 12/30/24 14:45 11,2,3-Trichloropropane <0.50 0.50 ug/L 12/30/24 14:45 11,2,4-Trimethylbenzene <0.50 0.50 ug/L 12/30/24 14:45 11,3,5-Trimethylbenzene <0.50 0.50 ug/L 12/30/24 14:45 1Vinyl chloride <0.50 0.50 ug/L 12/30/24 14:45 1Xylenes, Total <0.80 0.80 ug/L 12/30/24 14:45 1Vinyl acetate 4-Bromofluorobenzene (Surr)87 70-130 12/30/24 14:45 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 116 12/30/24 14:45 1Dibromofluoromethane (Surr)70-130 118 12/30/24 14:45 11,2-Dichloroethane-d4 (Surr)70-130 94 12/30/24 14:45 1Toluene-d8 (Surr)70-130 Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-590810/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 590810 Benzene 10.0 11.3 ug/L 113 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Bromobenzene 10.0 11.2 ug/L 112 70 -130 Bromochloromethane 10.0 11.4 ug/L 114 70 -130 Bromodichloromethane 10.0 12.1 ug/L 121 70 -130 Bromoform 10.0 13.2 *+ug/L 132 70 -130 Bromomethane 10.0 11.9 ug/L 119 70 -130 Carbon tetrachloride 10.0 12.4 ug/L 124 70 -130 Chlorobenzene 10.0 11.8 ug/L 118 70 -130 Chloroethane 10.0 11.4 ug/L 114 70 -130 Chloroform 10.0 11.1 ug/L 111 70 -130 Chloromethane 10.0 11.7 ug/L 117 70 -130 2-Chlorotoluene 10.0 11.1 ug/L 111 70 -130 4-Chlorotoluene 10.0 11.2 ug/L 112 70 -130 cis-1,2-Dichloroethene 10.0 11.0 ug/L 110 70 -130 cis-1,3-Dichloropropene 10.0 12.1 ug/L 121 70 -130 Dibromochloromethane 10.0 12.5 ug/L 125 70 -130 1,2-Dibromo-3-Chloropropane 10.0 11.2 ug/L 112 70 -130 1,2-Dibromoethane 10.0 11.8 ug/L 118 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 32 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-590810/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 590810 Dibromomethane 10.0 12.5 ug/L 125 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,2-Dichlorobenzene 10.0 10.7 ug/L 107 70 -130 1,3-Dichlorobenzene 10.0 11.3 ug/L 113 70 -130 1,4-Dichlorobenzene 10.0 10.6 ug/L 106 70 -130 Dichlorodifluoromethane 10.0 13.1 *+ug/L 131 70 -130 1,1-Dichloroethane 10.0 10.9 ug/L 109 70 -130 1,2-Dichloroethane 10.0 12.0 ug/L 120 70 -130 1,1-Dichloroethene 10.0 10.9 ug/L 109 70 -130 1,2-Dichloropropane 10.0 11.7 ug/L 117 70 -130 1,3-Dichloropropane 10.0 11.9 ug/L 119 70 -130 2,2-Dichloropropane 10.0 10.6 ug/L 106 70 -130 1,1-Dichloropropene 10.0 11.1 ug/L 111 70 -130 di-Isopropyl ether 10.0 10.4 ug/L 104 70 -130 Ethylbenzene 10.0 11.7 ug/L 117 70 -130 Hexachlorobutadiene 10.0 11.7 ug/L 117 70 -130 Isopropylbenzene 10.0 12.0 ug/L 120 70 -130 Methylene Chloride 10.0 11.0 ug/L 110 70 -130 Methyl tert-butyl ether 10.0 10.9 ug/L 109 70 -130 m-Xylene & p-Xylene 20.0 23.6 ug/L 118 70 -130 Naphthalene 10.0 10.6 ug/L 106 70 -130 n-Butylbenzene 10.0 11.5 ug/L 115 70 -130 N-Propylbenzene 10.0 11.1 ug/L 111 70 -130 2-Butanone 100 115 ug/L 115 70 -130 o-Xylene 10.0 11.9 ug/L 119 70 -130 p-Isopropyltoluene 10.0 11.5 ug/L 115 70 -130 sec-Butylbenzene 10.0 11.2 ug/L 112 70 -130 Styrene 10.0 12.7 ug/L 127 70 -130 tert-Butylbenzene 10.0 11.4 ug/L 114 70 -130 1,1,1,2-Tetrachloroethane 10.0 11.9 ug/L 119 70 -130 1,1,2,2-Tetrachloroethane 10.0 10.8 ug/L 108 70 -130 Tetrachloroethene 10.0 11.6 ug/L 116 70 -130 2-Hexanone 100 128 ug/L 128 70 -130 Toluene 10.0 11.4 ug/L 114 70 -130 trans-1,2-Dichloroethene 10.0 10.9 ug/L 109 70 -130 trans-1,3-Dichloropropene 10.0 11.9 ug/L 119 70 -130 1,2,3-Trichlorobenzene 10.0 10.9 ug/L 109 70 -130 1,2,4-Trichlorobenzene 10.0 11.0 ug/L 110 70 -130 1,1,1-Trichloroethane 10.0 11.6 ug/L 116 70 -130 4-Methyl-2-pentanone (MIBK)100 130 ug/L 130 70 -130 1,1,2-Trichloroethane 10.0 11.6 ug/L 116 70 -130 Acetone 100 133 *+ug/L 133 70 -130 Trichloroethene 10.0 11.7 ug/L 117 70 -130 Trichlorofluoromethane 10.0 12.4 ug/L 124 70 -130 1,2,3-Trichloropropane 10.0 10.7 ug/L 107 70 -130 1,2,4-Trimethylbenzene 10.0 11.4 ug/L 114 70 -130 1,3,5-Trimethylbenzene 10.0 11.2 ug/L 112 70 -130 Vinyl chloride 10.0 11.7 ug/L 117 70 -130 Xylenes, Total 30.0 35.5 ug/L 118 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 33 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-590810/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 590810 4-Bromofluorobenzene (Surr)70 -130 Surrogate 101 LCS LCS Qualifier Limits%Recovery 105Dibromofluoromethane (Surr)70 -130 1081,2-Dichloroethane-d4 (Surr)70 -130 99Toluene-d8 (Surr)70 -130 Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-590810/1004 Matrix: Water Prep Type: Total/NA Analysis Batch: 590810 Ethanol 1000 1670 *+ug/L 167 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Vinyl acetate 10.0 12.7 ug/L 127 70 -130 4-Bromofluorobenzene (Surr)70 -130 Surrogate 87 LCS LCS Qualifier Limits%Recovery 112Dibromofluoromethane (Surr)70 -130 1151,2-Dichloroethane-d4 (Surr)70 -130 92Toluene-d8 (Surr)70 -130 Client Sample ID: MW-21DLab Sample ID: 410-201872-1 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 590810 Benzene 1900 E 100 1780 E 4 ug/L -96 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Bromobenzene <10 100 120 ug/L 120 70 -130 Bromochloromethane <10 100 123 ug/L 123 70 -130 Bromodichloromethane <10 F1 100 131 F1 ug/L 131 70 -130 Bromoform <20 F1 *+ cn 100 132 F1 ug/L 132 70 -130 Bromomethane <10 100 84.8 ug/L 85 70 -130 Carbon tetrachloride <10 F1 100 131 F1 ug/L 131 70 -130 Chlorobenzene <10 100 121 ug/L 121 70 -130 Chloroethane <10 100 110 ug/L 110 70 -130 Chloroform <10 100 122 ug/L 122 70 -130 Chloromethane <16 F1 100 140 F1 ug/L 140 70 -130 2-Chlorotoluene <10 100 115 ug/L 115 70 -130 4-Chlorotoluene <10 100 117 ug/L 117 70 -130 cis-1,2-Dichloroethene <10 100 120 ug/L 120 70 -130 cis-1,3-Dichloropropene <10 100 125 ug/L 125 70 -130 Dibromochloromethane <10 100 126 ug/L 126 70 -130 1,2-Dibromo-3-Chloropropane <40 100 121 ug/L 121 70 -130 1,2-Dibromoethane <10 100 122 ug/L 122 70 -130 Dibromomethane <10 F1 100 130 ug/L 130 70 -130 1,2-Dichlorobenzene <10 100 114 ug/L 114 70 -130 1,3-Dichlorobenzene <10 100 119 ug/L 119 70 -130 1,4-Dichlorobenzene <10 100 112 ug/L 112 70 -130 Dichlorodifluoromethane <10 *+ cn 100 122 ug/L 122 70 -130 1,1-Dichloroethane <10 100 122 ug/L 122 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 34 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-21DLab Sample ID: 410-201872-1 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 590810 1,2-Dichloroethane 370 100 456 ug/L 89 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits 1,1-Dichloroethene <10 F1 100 126 ug/L 126 70 -130 1,2-Dichloropropane <10 F1 100 131 F1 ug/L 131 70 -130 1,3-Dichloropropane <10 100 119 ug/L 119 70 -130 2,2-Dichloropropane <10 100 112 ug/L 112 70 -130 1,1-Dichloropropene <10 100 115 ug/L 115 70 -130 di-Isopropyl ether 87 100 185 ug/L 97 70 -130 Ethylbenzene 420 100 498 4 ug/L 78 70 -130 Hexachlorobutadiene <10 100 126 ug/L 126 70 -130 Isopropylbenzene 25 F1 100 166 F1 ug/L 140 70 -130 Methylene Chloride 17 100 137 ug/L 119 70 -130 Methyl tert-butyl ether <10 100 120 ug/L 120 70 -130 m-Xylene & p-Xylene 97 200 335 ug/L 119 70 -130 Naphthalene 63 100 178 ug/L 115 70 -130 n-Butylbenzene <10 100 119 ug/L 119 70 -130 N-Propylbenzene 24 100 139 ug/L 115 70 -130 2-Butanone <100 1250 1520 ug/L 121 70 -130 o-Xylene <10 100 127 ug/L 122 70 -130 p-Isopropyltoluene <10 100 118 ug/L 118 70 -130 sec-Butylbenzene <10 100 118 ug/L 115 70 -130 Styrene <10 F1 100 130 ug/L 130 70 -130 tert-Butylbenzene <10 100 118 ug/L 109 70 -130 1,1,1,2-Tetrachloroethane <10 100 121 ug/L 121 70 -130 1,1,2,2-Tetrachloroethane <10 100 120 ug/L 120 70 -130 Tetrachloroethene <10 100 119 ug/L 119 70 -130 2-Hexanone <100 F1 1250 1630 ug/L 130 70 -130 Toluene <10 100 116 ug/L 116 70 -130 trans-1,2-Dichloroethene <10 100 121 ug/L 121 70 -130 trans-1,3-Dichloropropene <10 100 119 ug/L 119 70 -130 1,2,3-Trichlorobenzene <10 100 111 ug/L 111 70 -130 1,2,4-Trichlorobenzene <10 100 116 ug/L 116 70 -130 1,1,1-Trichloroethane <10 100 126 ug/L 126 70 -130 4-Methyl-2-pentanone (MIBK)<100 F1 1250 1830 F1 ug/L 146 70 -130 1,1,2-Trichloroethane <10 F1 100 148 F1 ug/L 148 70 -130 Acetone <240 F1 *+ cn 1250 3120 F1 ug/L 250 70 -130 Trichloroethene <10 100 123 ug/L 120 70 -130 Trichlorofluoromethane <10 100 114 ug/L 114 70 -130 1,2,3-Trichloropropane <40 100 114 ug/L 114 70 -130 1,2,4-Trimethylbenzene 66 100 181 ug/L 114 70 -130 1,3,5-Trimethylbenzene 24 100 140 ug/L 116 70 -130 Vinyl chloride <10 100 112 ug/L 112 70 -130 Xylenes, Total 97 300 462 ug/L 122 70 -130 4-Bromofluorobenzene (Surr)70 -130 Surrogate 98 MS MS Qualifier Limits%Recovery 105Dibromofluoromethane (Surr)70 -130 1091,2-Dichloroethane-d4 (Surr)70 -130 96Toluene-d8 (Surr)70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 35 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-21DLab Sample ID: 410-201872-1 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 590810 Ethanol <40000 F1 *+10000 15700 F1 ug/L 157 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Vinyl acetate <160 F1 250 408 F1 ug/L 163 70 -130 4-Bromofluorobenzene (Surr)70 -130 Surrogate 93 MS MS Qualifier Limits%Recovery 105Dibromofluoromethane (Surr)70 -130 1081,2-Dichloroethane-d4 (Surr)70 -130 95Toluene-d8 (Surr)70 -130 Client Sample ID: MW-21DLab Sample ID: 410-201872-1 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 590810 Benzene 1900 E 100 1810 E 4 ug/L -67 70 -130 2 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Bromobenzene <10 100 123 ug/L 123 70 -130 3 30 Bromochloromethane <10 100 123 ug/L 123 70 -130 0 30 Bromodichloromethane <10 F1 100 134 F1 ug/L 134 70 -130 2 30 Bromoform <20 F1 *+ cn 100 136 F1 ug/L 136 70 -130 3 30 Bromomethane <10 100 114 ug/L 114 70 -130 30 30 Carbon tetrachloride <10 F1 100 133 F1 ug/L 133 70 -130 1 30 Chlorobenzene <10 100 125 ug/L 125 70 -130 3 30 Chloroethane <10 100 113 ug/L 113 70 -130 2 30 Chloroform <10 100 128 ug/L 128 70 -130 5 30 Chloromethane <16 F1 100 145 F1 ug/L 145 70 -130 3 30 2-Chlorotoluene <10 100 120 ug/L 120 70 -130 4 30 4-Chlorotoluene <10 100 119 ug/L 119 70 -130 2 30 cis-1,2-Dichloroethene <10 100 120 ug/L 120 70 -130 0 30 cis-1,3-Dichloropropene <10 100 126 ug/L 126 70 -130 1 30 Dibromochloromethane <10 100 130 ug/L 130 70 -130 3 30 1,2-Dibromo-3-Chloropropane <40 100 125 ug/L 125 70 -130 3 30 1,2-Dibromoethane <10 100 122 ug/L 122 70 -130 0 30 Dibromomethane <10 F1 100 131 F1 ug/L 131 70 -130 1 30 1,2-Dichlorobenzene <10 100 118 ug/L 118 70 -130 4 30 1,3-Dichlorobenzene <10 100 122 ug/L 122 70 -130 2 30 1,4-Dichlorobenzene <10 100 116 ug/L 116 70 -130 3 30 Dichlorodifluoromethane <10 *+ cn 100 125 ug/L 125 70 -130 3 30 1,1-Dichloroethane <10 100 122 ug/L 122 70 -130 1 30 1,2-Dichloroethane 370 100 462 ug/L 96 70 -130 1 30 1,1-Dichloroethene <10 F1 100 132 F1 ug/L 132 70 -130 4 30 1,2-Dichloropropane <10 F1 100 133 F1 ug/L 133 70 -130 1 30 1,3-Dichloropropane <10 100 120 ug/L 120 70 -130 1 30 2,2-Dichloropropane <10 100 113 ug/L 113 70 -130 1 30 1,1-Dichloropropene <10 100 118 ug/L 118 70 -130 3 30 di-Isopropyl ether 87 100 189 ug/L 102 70 -130 3 30 Hexachlorobutadiene <10 100 128 ug/L 128 70 -130 2 30 Isopropylbenzene 25 F1 100 169 F1 ug/L 143 70 -130 2 30 Methylene Chloride 17 100 137 ug/L 120 70 -130 1 30 Eurofins Lancaster Laboratories Environment Testing, LLC Page 36 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-21DLab Sample ID: 410-201872-1 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 590810 Methyl tert-butyl ether <10 100 122 ug/L 122 70 -130 2 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD m-Xylene & p-Xylene 97 200 342 ug/L 123 70 -130 2 30 Naphthalene 63 100 181 ug/L 118 70 -130 1 30 n-Butylbenzene <10 100 123 ug/L 123 70 -130 3 30 N-Propylbenzene 24 100 143 ug/L 119 70 -130 3 30 2-Butanone <100 1250 1500 ug/L 120 70 -130 1 30 o-Xylene <10 100 129 ug/L 124 70 -130 2 30 p-Isopropyltoluene <10 100 121 ug/L 121 70 -130 3 30 sec-Butylbenzene <10 100 122 ug/L 120 70 -130 4 30 Styrene <10 F1 100 133 F1 ug/L 133 70 -130 3 30 tert-Butylbenzene <10 100 124 ug/L 115 70 -130 5 30 1,1,1,2-Tetrachloroethane <10 100 125 ug/L 125 70 -130 3 30 1,1,2,2-Tetrachloroethane <10 100 123 ug/L 123 70 -130 2 30 Tetrachloroethene <10 100 121 ug/L 121 70 -130 2 30 2-Hexanone <100 F1 1250 1770 F1 ug/L 142 70 -130 8 30 Toluene <10 100 120 ug/L 120 70 -130 3 30 trans-1,2-Dichloroethene <10 100 125 ug/L 125 70 -130 4 30 trans-1,3-Dichloropropene <10 100 126 ug/L 126 70 -130 6 30 1,2,3-Trichlorobenzene <10 100 113 ug/L 113 70 -130 1 30 1,2,4-Trichlorobenzene <10 100 121 ug/L 121 70 -130 5 30 1,1,1-Trichloroethane <10 100 128 ug/L 128 70 -130 1 30 4-Methyl-2-pentanone (MIBK)<100 F1 1250 1750 F1 ug/L 140 70 -130 4 30 1,1,2-Trichloroethane <10 F1 100 151 F1 ug/L 151 70 -130 2 30 Acetone <240 F1 *+ cn 1250 3150 F1 ug/L 252 70 -130 1 30 Trichloroethene <10 100 126 ug/L 123 70 -130 2 30 Trichlorofluoromethane <10 100 117 ug/L 117 70 -130 2 30 1,2,3-Trichloropropane <40 100 120 ug/L 120 70 -130 6 30 1,2,4-Trimethylbenzene 66 100 185 ug/L 119 70 -130 2 30 1,3,5-Trimethylbenzene 24 100 144 ug/L 120 70 -130 3 30 Vinyl chloride <10 100 114 ug/L 114 70 -130 2 30 Xylenes, Total 97 300 471 ug/L 125 70 -130 2 30 4-Bromofluorobenzene (Surr)70 -130 Surrogate 97 MSD MSD Qualifier Limits%Recovery 104Dibromofluoromethane (Surr)70 -130 1061,2-Dichloroethane-d4 (Surr)70 -130 97Toluene-d8 (Surr)70 -130 Client Sample ID: MW-21DLab Sample ID: 410-201872-1 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 590810 Ethanol <40000 F1 *+10000 16500 F1 ug/L 165 70 -130 4 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Vinyl acetate <160 F1 250 429 F1 ug/L 172 70 -130 5 30 4-Bromofluorobenzene (Surr)70 -130 Surrogate 96 MSD MSD Qualifier Limits%Recovery Eurofins Lancaster Laboratories Environment Testing, LLC Page 37 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-21DLab Sample ID: 410-201872-1 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 590810 Dibromofluoromethane (Surr)70 -130 Surrogate 105 MSD MSD Qualifier Limits%Recovery 1091,2-Dichloroethane-d4 (Surr)70 -130 95Toluene-d8 (Surr)70 -130 Client Sample ID: Method BlankLab Sample ID: MB 410-591176/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 591176 RL Benzene <0.50 0.50 ug/L 12/31/24 10:21 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.50 0.50 ug/L 12/31/24 10:21 1Bromobenzene <0.50 0.50 ug/L 12/31/24 10:21 1Bromochloromethane <0.50 0.50 ug/L 12/31/24 10:21 1Bromodichloromethane <1.0 1.0 ug/L 12/31/24 10:21 1Bromoform <0.50 0.50 ug/L 12/31/24 10:21 1Bromomethane <0.50 0.50 ug/L 12/31/24 10:21 1Carbon tetrachloride <0.50 0.50 ug/L 12/31/24 10:21 1Chlorobenzene <0.50 0.50 ug/L 12/31/24 10:21 1Chloroethane <0.50 0.50 ug/L 12/31/24 10:21 1Chloroform <0.80 0.80 ug/L 12/31/24 10:21 1Chloromethane <0.50 0.50 ug/L 12/31/24 10:21 12-Chlorotoluene <0.50 0.50 ug/L 12/31/24 10:21 14-Chlorotoluene <0.50 0.50 ug/L 12/31/24 10:21 1cis-1,2-Dichloroethene <0.50 0.50 ug/L 12/31/24 10:21 1cis-1,3-Dichloropropene <0.50 0.50 ug/L 12/31/24 10:21 1Dibromochloromethane <2.0 2.0 ug/L 12/31/24 10:21 11,2-Dibromo-3-Chloropropane <0.50 0.50 ug/L 12/31/24 10:21 11,2-Dibromoethane <0.50 0.50 ug/L 12/31/24 10:21 1Dibromomethane <0.50 0.50 ug/L 12/31/24 10:21 11,2-Dichlorobenzene <0.50 0.50 ug/L 12/31/24 10:21 11,3-Dichlorobenzene <0.50 0.50 ug/L 12/31/24 10:21 11,4-Dichlorobenzene <0.50 0.50 ug/L 12/31/24 10:21 1Dichlorodifluoromethane <0.50 0.50 ug/L 12/31/24 10:21 11,1-Dichloroethane <0.50 0.50 ug/L 12/31/24 10:21 11,2-Dichloroethane <0.50 0.50 ug/L 12/31/24 10:21 11,1-Dichloroethene <0.50 0.50 ug/L 12/31/24 10:21 11,2-Dichloropropane <0.50 0.50 ug/L 12/31/24 10:21 11,3-Dichloropropane <0.50 0.50 ug/L 12/31/24 10:21 12,2-Dichloropropane <0.50 0.50 ug/L 12/31/24 10:21 11,1-Dichloropropene <0.50 0.50 ug/L 12/31/24 10:21 1di-Isopropyl ether <200 200 ug/L 12/31/24 10:21 1Ethanol <0.50 0.50 ug/L 12/31/24 10:21 1Ethylbenzene <0.50 0.50 ug/L 12/31/24 10:21 1Hexachlorobutadiene <0.50 0.50 ug/L 12/31/24 10:21 1Isopropylbenzene <0.80 0.80 ug/L 12/31/24 10:21 1Methylene Chloride <0.50 0.50 ug/L 12/31/24 10:21 1Methyl tert-butyl ether <0.50 0.50 ug/L 12/31/24 10:21 1Naphthalene <0.50 0.50 ug/L 12/31/24 10:21 1n-Butylbenzene Eurofins Lancaster Laboratories Environment Testing, LLC Page 38 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Method BlankLab Sample ID: MB 410-591176/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 591176 RL N-Propylbenzene <0.50 0.50 ug/L 12/31/24 10:21 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <5.0 5.0 ug/L 12/31/24 10:21 12-Butanone <0.50 0.50 ug/L 12/31/24 10:21 1p-Isopropyltoluene <0.50 0.50 ug/L 12/31/24 10:21 1sec-Butylbenzene <0.50 0.50 ug/L 12/31/24 10:21 1Styrene <0.50 0.50 ug/L 12/31/24 10:21 1tert-Butylbenzene <0.50 0.50 ug/L 12/31/24 10:21 11,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 12/31/24 10:21 11,1,2,2-Tetrachloroethane <0.50 0.50 ug/L 12/31/24 10:21 1Tetrachloroethene <5.0 5.0 ug/L 12/31/24 10:21 12-Hexanone <0.50 0.50 ug/L 12/31/24 10:21 1Toluene <0.50 0.50 ug/L 12/31/24 10:21 1trans-1,2-Dichloroethene <0.50 0.50 ug/L 12/31/24 10:21 1trans-1,3-Dichloropropene <0.50 0.50 ug/L 12/31/24 10:21 11,2,3-Trichlorobenzene <0.50 0.50 ug/L 12/31/24 10:21 11,2,4-Trichlorobenzene <0.50 0.50 ug/L 12/31/24 10:21 11,1,1-Trichloroethane <5.0 5.0 ug/L 12/31/24 10:21 14-Methyl-2-pentanone (MIBK) <0.50 0.50 ug/L 12/31/24 10:21 11,1,2-Trichloroethane <12 12 ug/L 12/31/24 10:21 1Acetone <0.50 0.50 ug/L 12/31/24 10:21 1Trichloroethene <0.50 0.50 ug/L 12/31/24 10:21 1Trichlorofluoromethane <2.0 2.0 ug/L 12/31/24 10:21 11,2,3-Trichloropropane <0.50 0.50 ug/L 12/31/24 10:21 11,2,4-Trimethylbenzene <0.50 0.50 ug/L 12/31/24 10:21 11,3,5-Trimethylbenzene <0.50 0.50 ug/L 12/31/24 10:21 1Vinyl chloride <0.50 0.50 ug/L 12/31/24 10:21 1Xylenes, Total <0.80 0.80 ug/L 12/31/24 10:21 1Vinyl acetate 4-Bromofluorobenzene (Surr)86 70-130 12/31/24 10:21 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 123 12/31/24 10:21 1Dibromofluoromethane (Surr)70-130 122 12/31/24 10:21 11,2-Dichloroethane-d4 (Surr)70-130 94 12/31/24 10:21 1Toluene-d8 (Surr)70-130 Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-591176/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 591176 Benzene 5.00 5.65 ug/L 113 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Bromobenzene 5.00 5.61 ug/L 112 70 -130 Bromochloromethane 5.00 5.94 ug/L 119 70 -130 Bromodichloromethane 5.00 6.35 ug/L 127 70 -130 Bromoform 5.00 6.77 *+ug/L 135 70 -130 Bromomethane 5.00 6.05 ug/L 121 70 -130 Carbon tetrachloride 5.00 6.29 ug/L 126 70 -130 Chlorobenzene 5.00 6.04 ug/L 121 70 -130 Chloroethane 5.00 5.86 ug/L 117 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 39 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-591176/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 591176 Chloroform 5.00 5.82 ug/L 116 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Chloromethane 5.00 5.80 ug/L 116 70 -130 2-Chlorotoluene 5.00 5.48 ug/L 110 70 -130 4-Chlorotoluene 5.00 5.61 ug/L 112 70 -130 cis-1,2-Dichloroethene 5.00 5.68 ug/L 114 70 -130 cis-1,3-Dichloropropene 5.00 5.67 ug/L 113 70 -130 Dibromochloromethane 5.00 6.52 ug/L 130 70 -130 1,2-Dibromo-3-Chloropropane 5.00 5.71 ug/L 114 70 -130 1,2-Dibromoethane 5.00 6.07 ug/L 121 70 -130 Dibromomethane 5.00 6.40 ug/L 128 70 -130 1,2-Dichlorobenzene 5.00 5.59 ug/L 112 70 -130 1,3-Dichlorobenzene 5.00 5.77 ug/L 115 70 -130 1,4-Dichlorobenzene 5.00 5.51 ug/L 110 70 -130 Dichlorodifluoromethane 5.00 6.56 *+ug/L 131 70 -130 1,1-Dichloroethane 5.00 5.63 ug/L 113 70 -130 1,2-Dichloroethane 5.00 6.38 ug/L 128 70 -130 1,1-Dichloroethene 5.00 5.37 ug/L 107 70 -130 1,2-Dichloropropane 5.00 5.98 ug/L 120 70 -130 1,3-Dichloropropane 5.00 5.99 ug/L 120 70 -130 2,2-Dichloropropane 5.00 5.62 ug/L 112 70 -130 1,1-Dichloropropene 5.00 5.32 ug/L 106 70 -130 di-Isopropyl ether 5.00 5.21 ug/L 104 70 -130 Ethylbenzene 5.00 5.82 ug/L 116 70 -130 Hexachlorobutadiene 5.00 5.84 ug/L 117 70 -130 Isopropylbenzene 5.00 5.59 ug/L 112 70 -130 Methylene Chloride 5.00 5.66 ug/L 113 70 -130 Methyl tert-butyl ether 5.00 5.68 ug/L 114 70 -130 m-Xylene & p-Xylene 10.0 12.0 ug/L 120 70 -130 Naphthalene 5.00 4.53 ug/L 91 70 -130 n-Butylbenzene 5.00 5.81 ug/L 116 70 -130 N-Propylbenzene 5.00 5.48 ug/L 110 70 -130 2-Butanone 50.0 59.5 ug/L 119 70 -130 o-Xylene 5.00 5.60 ug/L 112 70 -130 p-Isopropyltoluene 5.00 5.58 ug/L 112 70 -130 sec-Butylbenzene 5.00 5.42 ug/L 108 70 -130 Styrene 5.00 6.28 ug/L 126 70 -130 tert-Butylbenzene 5.00 5.48 ug/L 110 70 -130 1,1,1,2-Tetrachloroethane 5.00 6.24 ug/L 125 70 -130 1,1,2,2-Tetrachloroethane 5.00 5.57 ug/L 111 70 -130 Tetrachloroethene 5.00 5.85 ug/L 117 70 -130 2-Hexanone 50.0 60.9 ug/L 122 70 -130 Toluene 5.00 5.67 ug/L 113 70 -130 trans-1,2-Dichloroethene 5.00 5.39 ug/L 108 70 -130 trans-1,3-Dichloropropene 5.00 5.87 ug/L 117 70 -130 1,2,3-Trichlorobenzene 5.00 5.16 ug/L 103 70 -130 1,2,4-Trichlorobenzene 5.00 5.03 ug/L 101 70 -130 1,1,1-Trichloroethane 5.00 5.93 ug/L 119 70 -130 4-Methyl-2-pentanone (MIBK)50.0 62.2 ug/L 124 70 -130 1,1,2-Trichloroethane 5.00 6.11 ug/L 122 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 40 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-591176/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 591176 Acetone 50.0 68.0 *+ug/L 136 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Trichloroethene 5.00 5.69 ug/L 114 70 -130 Trichlorofluoromethane 5.00 6.33 ug/L 127 70 -130 1,2,3-Trichloropropane 5.00 5.65 ug/L 113 70 -130 1,2,4-Trimethylbenzene 5.00 5.55 ug/L 111 70 -130 1,3,5-Trimethylbenzene 5.00 5.46 ug/L 109 70 -130 Vinyl chloride 5.00 5.86 ug/L 117 70 -130 Xylenes, Total 15.0 17.6 ug/L 117 70 -130 4-Bromofluorobenzene (Surr)70 -130 Surrogate 100 LCS LCS Qualifier Limits%Recovery 108Dibromofluoromethane (Surr)70 -130 1121,2-Dichloroethane-d4 (Surr)70 -130 101Toluene-d8 (Surr)70 -130 Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-591176/1004 Matrix: Water Prep Type: Total/NA Analysis Batch: 591176 Ethanol 500 809 *+ug/L 162 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Vinyl acetate 5.00 5.52 ug/L 110 70 -130 4-Bromofluorobenzene (Surr)70 -130 Surrogate 87 LCS LCS Qualifier Limits%Recovery 112Dibromofluoromethane (Surr)70 -130 1171,2-Dichloroethane-d4 (Surr)70 -130 93Toluene-d8 (Surr)70 -130 Client Sample ID: MW-27Lab Sample ID: 410-201872-9 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 591176 Benzene 2200 E 100 2250 E 4 ug/L 77 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Bromobenzene <10 F1 100 133 F1 ug/L 133 70 -130 Bromochloromethane <10 F1 100 139 F1 ug/L 139 70 -130 Bromodichloromethane <10 F1 100 146 F1 ug/L 146 70 -130 Bromoform <20 F1 *+ cn 100 161 F1 ug/L 161 70 -130 Bromomethane <10 100 121 ug/L 121 70 -130 Carbon tetrachloride <10 F1 100 143 F1 ug/L 143 70 -130 Chlorobenzene <10 F1 100 144 F1 ug/L 144 70 -130 Chloroethane <10 100 116 ug/L 116 70 -130 Chloroform <10 F1 100 137 F1 ug/L 137 70 -130 Chloromethane <16 100 117 ug/L 117 70 -130 2-Chlorotoluene <10 F1 100 137 F1 ug/L 137 70 -130 4-Chlorotoluene <10 F1 100 134 F1 ug/L 134 70 -130 cis-1,2-Dichloroethene <10 F1 100 131 F1 ug/L 131 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 41 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-27Lab Sample ID: 410-201872-9 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 591176 cis-1,3-Dichloropropene <10 F1 100 126 ug/L 126 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Dibromochloromethane <10 F1 cn 100 155 F1 ug/L 155 70 -130 1,2-Dibromo-3-Chloropropane <40 F1 100 145 F1 ug/L 145 70 -130 1,2-Dibromoethane <10 F1 100 141 F1 ug/L 141 70 -130 Dibromomethane <10 F1 100 147 F1 ug/L 147 70 -130 1,2-Dichlorobenzene <10 F1 100 132 F1 ug/L 132 70 -130 1,3-Dichlorobenzene <10 F1 100 137 F1 ug/L 137 70 -130 1,4-Dichlorobenzene <10 F1 100 130 ug/L 130 70 -130 Dichlorodifluoromethane <10 F1 *+ cn 100 118 ug/L 118 70 -130 1,1-Dichloroethane <10 F1 100 134 F1 ug/L 134 70 -130 1,2-Dichloroethane <10 F1 100 149 F1 ug/L 149 70 -130 1,1-Dichloroethene <10 F1 100 135 F1 ug/L 135 70 -130 1,2-Dichloropropane <10 F1 100 141 F1 ug/L 141 70 -130 1,3-Dichloropropane <10 F1 100 140 F1 ug/L 140 70 -130 2,2-Dichloropropane <10 F1 100 125 ug/L 125 70 -130 1,1-Dichloropropene <10 100 119 ug/L 119 70 -130 di-Isopropyl ether <10 100 120 ug/L 114 70 -130 Ethylbenzene 55 F1 100 210 F1 ug/L 155 70 -130 Hexachlorobutadiene <10 F1 100 144 F1 ug/L 144 70 -130 Isopropylbenzene <10 F1 100 169 F1 ug/L 160 70 -130 Methylene Chloride <16 F1 100 134 F1 ug/L 134 70 -130 Methyl tert-butyl ether 70 F1 100 193 ug/L 123 70 -130 m-Xylene & p-Xylene 72 F1 200 377 F1 ug/L 153 70 -130 Naphthalene 260 F1 100 408 F1 ug/L 153 70 -130 n-Butylbenzene <10 F1 100 138 F1 ug/L 134 70 -130 N-Propylbenzene 15 F1 100 149 F1 ug/L 134 70 -130 2-Butanone <100 F1 1250 1720 F1 ug/L 137 70 -130 o-Xylene 69 F1 100 222 F1 ug/L 153 70 -130 p-Isopropyltoluene <10 F1 100 135 F1 ug/L 132 70 -130 sec-Butylbenzene <10 F1 100 134 ug/L 130 70 -130 Styrene <10 F1 100 160 F1 ug/L 160 70 -130 tert-Butylbenzene <10 F1 100 122 ug/L 122 70 -130 1,1,1,2-Tetrachloroethane <10 F1 100 150 F1 ug/L 150 70 -130 1,1,2,2-Tetrachloroethane <10 F1 100 129 ug/L 129 70 -130 Tetrachloroethene <10 F1 100 137 F1 ug/L 137 70 -130 2-Hexanone <100 F1 1250 1880 F1 ug/L 150 70 -130 Toluene <10 F1 100 146 F1 ug/L 137 70 -130 trans-1,2-Dichloroethene <10 F1 100 130 ug/L 130 70 -130 trans-1,3-Dichloropropene <10 F1 100 134 F1 ug/L 134 70 -130 1,2,3-Trichlorobenzene <10 F1 100 134 F1 ug/L 134 70 -130 1,2,4-Trichlorobenzene <10 F1 100 144 F1 ug/L 144 70 -130 1,1,1-Trichloroethane <10 F1 100 136 F1 ug/L 136 70 -130 4-Methyl-2-pentanone (MIBK)<100 F1 1250 1920 F1 ug/L 154 70 -130 1,1,2-Trichloroethane <10 F1 100 149 F1 ug/L 149 70 -130 Acetone <240 F1 *+ cn 1250 1850 F1 ug/L 148 70 -130 Trichloroethene <10 F1 100 128 ug/L 128 70 -130 Trichlorofluoromethane <10 F2 100 71.6 ug/L 72 70 -130 1,2,3-Trichloropropane <40 F1 100 134 F1 ug/L 134 70 -130 1,2,4-Trimethylbenzene 190 F1 100 332 F1 ug/L 145 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 42 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-27Lab Sample ID: 410-201872-9 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 591176 1,3,5-Trimethylbenzene 38 F1 100 175 F1 ug/L 137 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Vinyl chloride <10 100 119 ug/L 119 70 -130 Xylenes, Total 140 F1 300 599 F1 ug/L 153 70 -130 4-Bromofluorobenzene (Surr)70 -130 Surrogate 99 MS MS Qualifier Limits%Recovery 104Dibromofluoromethane (Surr)70 -130 1161,2-Dichloroethane-d4 (Surr)70 -130 102Toluene-d8 (Surr)70 -130 Client Sample ID: MW-27Lab Sample ID: 410-201872-9 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 591176 Ethanol <40000 F1 *+8000 4750 F1 ug/L 59 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Vinyl acetate <160 250 314 ug/L 126 70 -130 4-Bromofluorobenzene (Surr)70 -130 Surrogate 98 MS MS Qualifier Limits%Recovery 111Dibromofluoromethane (Surr)70 -130 1181,2-Dichloroethane-d4 (Surr)70 -130 93Toluene-d8 (Surr)70 -130 Client Sample ID: MW-27Lab Sample ID: 410-201872-9 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 591176 Benzene 2200 E 100 2410 E 4 ug/L 229 70 -130 7 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Bromobenzene <10 F1 100 145 F1 ug/L 145 70 -130 9 30 Bromochloromethane <10 F1 100 151 F1 ug/L 151 70 -130 8 30 Bromodichloromethane <10 F1 100 158 F1 ug/L 158 70 -130 8 30 Bromoform <20 F1 *+ cn 100 172 F1 ug/L 172 70 -130 6 30 Bromomethane <10 100 128 ug/L 128 70 -130 6 30 Carbon tetrachloride <10 F1 100 155 F1 ug/L 155 70 -130 8 30 Chlorobenzene <10 F1 100 153 F1 ug/L 153 70 -130 6 30 Chloroethane <10 100 127 ug/L 127 70 -130 9 30 Chloroform <10 F1 100 145 F1 ug/L 145 70 -130 6 30 Chloromethane <16 100 125 ug/L 125 70 -130 7 30 2-Chlorotoluene <10 F1 100 146 F1 ug/L 146 70 -130 7 30 4-Chlorotoluene <10 F1 100 144 F1 ug/L 144 70 -130 7 30 cis-1,2-Dichloroethene <10 F1 100 141 F1 ug/L 141 70 -130 8 30 cis-1,3-Dichloropropene <10 F1 100 139 F1 ug/L 139 70 -130 10 30 Dibromochloromethane <10 F1 cn 100 165 F1 ug/L 165 70 -130 6 30 1,2-Dibromo-3-Chloropropane <40 F1 100 146 F1 ug/L 146 70 -130 1 30 1,2-Dibromoethane <10 F1 100 153 F1 ug/L 153 70 -130 8 30 Dibromomethane <10 F1 100 156 F1 ug/L 156 70 -130 6 30 Eurofins Lancaster Laboratories Environment Testing, LLC Page 43 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-27Lab Sample ID: 410-201872-9 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 591176 1,2-Dichlorobenzene <10 F1 100 144 F1 ug/L 144 70 -130 8 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD 1,3-Dichlorobenzene <10 F1 100 148 F1 ug/L 148 70 -130 8 30 1,4-Dichlorobenzene <10 F1 100 142 F1 ug/L 142 70 -130 9 30 Dichlorodifluoromethane <10 F1 *+ cn 100 131 F1 ug/L 131 70 -130 10 30 1,1-Dichloroethane <10 F1 100 141 F1 ug/L 141 70 -130 6 30 1,2-Dichloroethane <10 F1 100 162 F1 ug/L 162 70 -130 8 30 1,1-Dichloroethene <10 F1 100 147 F1 ug/L 147 70 -130 9 30 1,2-Dichloropropane <10 F1 100 150 F1 ug/L 150 70 -130 6 30 1,3-Dichloropropane <10 F1 100 149 F1 ug/L 149 70 -130 7 30 2,2-Dichloropropane <10 F1 100 134 F1 ug/L 134 70 -130 7 30 1,1-Dichloropropene <10 100 129 ug/L 129 70 -130 8 30 di-Isopropyl ether <10 100 130 ug/L 123 70 -130 8 30 Ethylbenzene 55 F1 100 224 F1 ug/L 170 70 -130 7 30 Hexachlorobutadiene <10 F1 100 158 F1 ug/L 158 70 -130 9 30 Isopropylbenzene <10 F1 100 182 F1 ug/L 173 70 -130 8 30 Methylene Chloride <16 F1 100 143 F1 ug/L 143 70 -130 7 30 Methyl tert-butyl ether 70 F1 100 211 F1 ug/L 142 70 -130 9 30 m-Xylene & p-Xylene 72 F1 200 399 F1 ug/L 163 70 -130 6 30 Naphthalene 260 F1 100 439 F1 ug/L 184 70 -130 7 30 n-Butylbenzene <10 F1 100 151 F1 ug/L 147 70 -130 9 30 N-Propylbenzene 15 F1 100 161 F1 ug/L 147 70 -130 8 30 2-Butanone <100 F1 1250 1810 F1 ug/L 145 70 -130 5 30 o-Xylene 69 F1 100 238 F1 ug/L 169 70 -130 7 30 p-Isopropyltoluene <10 F1 100 146 F1 ug/L 144 70 -130 8 30 sec-Butylbenzene <10 F1 100 145 F1 ug/L 141 70 -130 8 30 Styrene <10 F1 100 170 F1 ug/L 170 70 -130 7 30 tert-Butylbenzene <10 F1 100 134 F1 ug/L 134 70 -130 9 30 1,1,1,2-Tetrachloroethane <10 F1 100 160 F1 ug/L 160 70 -130 7 30 1,1,2,2-Tetrachloroethane <10 F1 100 141 F1 ug/L 141 70 -130 9 30 Tetrachloroethene <10 F1 100 147 F1 ug/L 147 70 -130 7 30 2-Hexanone <100 F1 1250 2090 F1 ug/L 167 70 -130 11 30 Toluene <10 F1 100 157 F1 ug/L 148 70 -130 7 30 trans-1,2-Dichloroethene <10 F1 100 142 F1 ug/L 142 70 -130 9 30 trans-1,3-Dichloropropene <10 F1 100 146 F1 ug/L 146 70 -130 8 30 1,2,3-Trichlorobenzene <10 F1 100 148 F1 ug/L 148 70 -130 10 30 1,2,4-Trichlorobenzene <10 F1 100 158 F1 ug/L 158 70 -130 9 30 1,1,1-Trichloroethane <10 F1 100 149 F1 ug/L 149 70 -130 9 30 4-Methyl-2-pentanone (MIBK)<100 F1 1250 1990 F1 ug/L 159 70 -130 4 30 1,1,2-Trichloroethane <10 F1 100 153 F1 ug/L 153 70 -130 3 30 Acetone <240 F1 *+ cn 1250 1960 F1 ug/L 157 70 -130 6 30 Trichloroethene <10 F1 100 141 F1 ug/L 141 70 -130 9 30 Trichlorofluoromethane <10 F2 100 130 F2 ug/L 130 70 -130 58 30 1,2,3-Trichloropropane <40 F1 100 141 F1 ug/L 141 70 -130 6 30 1,2,4-Trimethylbenzene 190 F1 100 357 F1 ug/L 170 70 -130 7 30 1,3,5-Trimethylbenzene 38 F1 100 189 F1 ug/L 151 70 -130 8 30 Vinyl chloride <10 100 127 ug/L 127 70 -130 7 30 Xylenes, Total 140 F1 300 637 F1 ug/L 165 70 -130 6 30 Eurofins Lancaster Laboratories Environment Testing, LLC Page 44 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-27Lab Sample ID: 410-201872-9 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 591176 4-Bromofluorobenzene (Surr)70 -130 Surrogate 100 MSD MSD Qualifier Limits%Recovery 108Dibromofluoromethane (Surr)70 -130 1151,2-Dichloroethane-d4 (Surr)70 -130 101Toluene-d8 (Surr)70 -130 Client Sample ID: MW-27Lab Sample ID: 410-201872-9 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 591176 Ethanol <40000 F1 *+8000 4240 F1 ug/L 53 70 -130 11 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Vinyl acetate <160 250 291 ug/L 117 70 -130 7 30 4-Bromofluorobenzene (Surr)70 -130 Surrogate 97 MSD MSD Qualifier Limits%Recovery 111Dibromofluoromethane (Surr)70 -130 1141,2-Dichloroethane-d4 (Surr)70 -130 93Toluene-d8 (Surr)70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 45 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy GC/MS VOA Analysis Batch: 590810 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 6200 B-2011410-201872-1 MW-21D Total/NA Groundwater 6200 B-2011410-201872-1 - DL MW-21D Total/NA Groundwater 6200 B-2011410-201872-2 MW-21 Total/NA Groundwater 6200 B-2011410-201872-2 - DL MW-21 Total/NA Groundwater 6200 B-2011410-201872-3 MW-2S Total/NA Groundwater 6200 B-2011410-201872-3 - DL MW-2S Total/NA Groundwater 6200 B-2011410-201872-4 MW-2D Total/NA Groundwater 6200 B-2011410-201872-4 - DL MW-2D Total/NA Groundwater 6200 B-2011410-201872-5 MW-17D Total/NA Groundwater 6200 B-2011410-201872-6 - DL MW-17 Total/NA Groundwater 6200 B-2011410-201872-6 MW-17 Total/NA Groundwater 6200 B-2011410-201872-7 MW-5SR Total/NA Groundwater 6200 B-2011410-201872-7 - DL MW-5SR Total/NA Groundwater 6200 B-2011410-201872-8 MW-5DR Total/NA Groundwater 6200 B-2011410-201872-10 MW-11D Total/NA Water 6200 B-2011410-201872-11 Trip Blank Total/NA Water 6200 B-2011MB 410-590810/6 Method Blank Total/NA Water 6200 B-2011LCS 410-590810/1003 Lab Control Sample Total/NA Water 6200 B-2011LCS 410-590810/1004 Lab Control Sample Total/NA Groundwater 6200 B-2011410-201872-1 MS MW-21D Total/NA Groundwater 6200 B-2011410-201872-1 MS MW-21D Total/NA Groundwater 6200 B-2011410-201872-1 MSD MW-21D Total/NA Groundwater 6200 B-2011410-201872-1 MSD MW-21D Total/NA Analysis Batch: 591176 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 6200 B-2011410-201872-8 - DL MW-5DR Total/NA Groundwater 6200 B-2011410-201872-9 MW-27 Total/NA Groundwater 6200 B-2011410-201872-9 - DL MW-27 Total/NA Groundwater 6200 B-2011410-201872-10 - DL MW-11D Total/NA Water 6200 B-2011MB 410-591176/6 Method Blank Total/NA Water 6200 B-2011LCS 410-591176/1003 Lab Control Sample Total/NA Water 6200 B-2011LCS 410-591176/1004 Lab Control Sample Total/NA Groundwater 6200 B-2011410-201872-9 MS MW-27 Total/NA Groundwater 6200 B-2011410-201872-9 MS MW-27 Total/NA Groundwater 6200 B-2011410-201872-9 MSD MW-27 Total/NA Groundwater 6200 B-2011410-201872-9 MSD MW-27 Total/NA Eurofins Lancaster Laboratories Environment Testing, LLC Page 46 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Kleinfelder Inc Job ID: 410-201872-1 Project/Site: Former GNC Energy Client Sample ID: MW-21D Lab Sample ID: 410-201872-1 Matrix: GroundwaterDate Collected: 12/17/24 10:20 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW220590810 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/30/24 16:45 Analysis 6200 B-2011 DL 200 590810 DVW2 ELLETotal/NA 12/30/24 18:45 Client Sample ID: MW-21 Lab Sample ID: 410-201872-2 Matrix: GroundwaterDate Collected: 12/17/24 10:58 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW250590810 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/30/24 19:09 Analysis 6200 B-2011 DL 500 590810 DVW2 ELLETotal/NA 12/30/24 19:33 Client Sample ID: MW-2S Lab Sample ID: 410-201872-3 Matrix: GroundwaterDate Collected: 12/17/24 11:39 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW220590810 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/30/24 19:57 Analysis 6200 B-2011 DL 200 590810 DVW2 ELLETotal/NA 12/30/24 20:21 Client Sample ID: MW-2D Lab Sample ID: 410-201872-4 Matrix: GroundwaterDate Collected: 12/17/24 12:19 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW250590810 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/30/24 20:45 Analysis 6200 B-2011 DL 500 590810 DVW2 ELLETotal/NA 12/30/24 21:09 Client Sample ID: MW-17D Lab Sample ID: 410-201872-5 Matrix: GroundwaterDate Collected: 12/17/24 13:40 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW21590810 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/30/24 15:33 Client Sample ID: MW-17 Lab Sample ID: 410-201872-6 Matrix: GroundwaterDate Collected: 12/17/24 13:32 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW2500DL590810 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/30/24 21:33 Analysis 6200 B-2011 50 590810 DVW2 ELLETotal/NA 12/30/24 21:57 Eurofins Lancaster Laboratories Environment Testing, LLC Page 47 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Kleinfelder Inc Job ID: 410-201872-1 Project/Site: Former GNC Energy Client Sample ID: MW-5SR Lab Sample ID: 410-201872-7 Matrix: GroundwaterDate Collected: 12/18/24 08:49 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW210590810 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/30/24 22:21 Analysis 6200 B-2011 DL 100 590810 DVW2 ELLETotal/NA 12/30/24 22:45 Client Sample ID: MW-5DR Lab Sample ID: 410-201872-8 Matrix: GroundwaterDate Collected: 12/18/24 09:26 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW21590810 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/30/24 15:57 Analysis 6200 B-2011 DL 100 591176 DVW2 ELLETotal/NA 12/31/24 14:22 Client Sample ID: MW-27 Lab Sample ID: 410-201872-9 Matrix: GroundwaterDate Collected: 12/18/24 10:09 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW220591176 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/31/24 11:58 Analysis 6200 B-2011 DL 200 591176 DVW2 ELLETotal/NA 12/31/24 13:58 Client Sample ID: MW-11D Lab Sample ID: 410-201872-10 Matrix: GroundwaterDate Collected: 12/18/24 11:30 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW21590810 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/30/24 16:21 Analysis 6200 B-2011 DL 10 591176 DVW2 ELLETotal/NA 12/31/24 11:34 Client Sample ID: Trip Blank Lab Sample ID: 410-201872-11 Matrix: WaterDate Collected: 12/17/24 00:00 Date Received: 12/21/24 10:15 Analysis 6200 B-2011 DVW21590810 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA 12/30/24 15:09 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 48 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Accreditation/Certification Summary Client: Kleinfelder Inc Job ID: 410-201872-1 Project/Site: Former GNC Energy Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program Identification Number Expiration Date North Carolina (DW)State 42705 07-31-25 Eurofins Lancaster Laboratories Environment Testing, LLC Page 49 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Accreditation/Certification Summary Client: Kleinfelder Inc Job ID: 410-201872-1 Project/Site: Former GNC Energy Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC (Continued) Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program Identification Number Expiration Date The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification. Analysis Method Prep Method Matrix Analyte 6200 B-2011 Groundwater Ethylbenzene 6200 B-2011 Groundwater Hexachlorobutadiene 6200 B-2011 Groundwater Isopropylbenzene 6200 B-2011 Groundwater Methyl tert-butyl ether 6200 B-2011 Groundwater Methylene Chloride 6200 B-2011 Groundwater Naphthalene 6200 B-2011 Groundwater n-Butylbenzene 6200 B-2011 Groundwater N-Propylbenzene 6200 B-2011 Groundwater p-Isopropyltoluene 6200 B-2011 Groundwater sec-Butylbenzene 6200 B-2011 Groundwater Styrene 6200 B-2011 Groundwater tert-Butylbenzene 6200 B-2011 Groundwater Tetrachloroethene 6200 B-2011 Groundwater Toluene 6200 B-2011 Groundwater trans-1,2-Dichloroethene 6200 B-2011 Groundwater trans-1,3-Dichloropropene 6200 B-2011 Groundwater Trichloroethene 6200 B-2011 Groundwater Trichlorofluoromethane 6200 B-2011 Groundwater Vinyl acetate 6200 B-2011 Groundwater Vinyl chloride 6200 B-2011 Groundwater Xylenes, Total 6200 B-2011 Water 1,1,1,2-Tetrachloroethane 6200 B-2011 Water 1,1,1-Trichloroethane 6200 B-2011 Water 1,1,2,2-Tetrachloroethane 6200 B-2011 Water 1,1,2-Trichloroethane 6200 B-2011 Water 1,1-Dichloroethane 6200 B-2011 Water 1,1-Dichloroethene 6200 B-2011 Water 1,1-Dichloropropene 6200 B-2011 Water 1,2,3-Trichlorobenzene 6200 B-2011 Water 1,2,3-Trichloropropane 6200 B-2011 Water 1,2,4-Trichlorobenzene 6200 B-2011 Water 1,2,4-Trimethylbenzene 6200 B-2011 Water 1,2-Dibromo-3-Chloropropane 6200 B-2011 Water 1,2-Dibromoethane 6200 B-2011 Water 1,2-Dichlorobenzene 6200 B-2011 Water 1,2-Dichloroethane 6200 B-2011 Water 1,2-Dichloropropane 6200 B-2011 Water 1,3,5-Trimethylbenzene 6200 B-2011 Water 1,3-Dichlorobenzene 6200 B-2011 Water 1,3-Dichloropropane 6200 B-2011 Water 1,4-Dichlorobenzene 6200 B-2011 Water 2,2-Dichloropropane 6200 B-2011 Water 2-Butanone 6200 B-2011 Water 2-Chlorotoluene 6200 B-2011 Water 2-Hexanone 6200 B-2011 Water 4-Chlorotoluene 6200 B-2011 Water 4-Methyl-2-pentanone (MIBK) Eurofins Lancaster Laboratories Environment Testing, LLC Page 50 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Accreditation/Certification Summary Client: Kleinfelder Inc Job ID: 410-201872-1 Project/Site: Former GNC Energy Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC (Continued) Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program Identification Number Expiration Date The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification. Analysis Method Prep Method Matrix Analyte 6200 B-2011 Water Acetone 6200 B-2011 Water Benzene 6200 B-2011 Water Bromobenzene 6200 B-2011 Water Bromochloromethane 6200 B-2011 Water Bromodichloromethane 6200 B-2011 Water Bromoform 6200 B-2011 Water Bromomethane 6200 B-2011 Water Carbon tetrachloride 6200 B-2011 Water Chlorobenzene 6200 B-2011 Water Chloroethane 6200 B-2011 Water Chloroform 6200 B-2011 Water Chloromethane 6200 B-2011 Water cis-1,2-Dichloroethene 6200 B-2011 Water cis-1,3-Dichloropropene 6200 B-2011 Water Dibromochloromethane 6200 B-2011 Water Dibromomethane 6200 B-2011 Water Dichlorodifluoromethane 6200 B-2011 Water di-Isopropyl ether 6200 B-2011 Water Ethanol 6200 B-2011 Water Ethylbenzene 6200 B-2011 Water Hexachlorobutadiene 6200 B-2011 Water Isopropylbenzene 6200 B-2011 Water Methyl tert-butyl ether 6200 B-2011 Water Methylene Chloride 6200 B-2011 Water Naphthalene 6200 B-2011 Water n-Butylbenzene 6200 B-2011 Water N-Propylbenzene 6200 B-2011 Water p-Isopropyltoluene 6200 B-2011 Water sec-Butylbenzene 6200 B-2011 Water Styrene 6200 B-2011 Water tert-Butylbenzene 6200 B-2011 Water Tetrachloroethene 6200 B-2011 Water Toluene 6200 B-2011 Water trans-1,2-Dichloroethene 6200 B-2011 Water trans-1,3-Dichloropropene 6200 B-2011 Water Trichloroethene 6200 B-2011 Water Trichlorofluoromethane 6200 B-2011 Water Vinyl acetate 6200 B-2011 Water Vinyl chloride 6200 B-2011 Water Xylenes, Total North Carolina (WW/SW)State 521 12-31-25 Eurofins Lancaster Laboratories Environment Testing, LLC Page 51 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Accreditation/Certification Summary Client: Kleinfelder Inc Job ID: 410-201872-1 Project/Site: Former GNC Energy Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC (Continued) Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program Identification Number Expiration Date The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification. Analysis Method Prep Method Matrix Analyte 6200 B-2011 Groundwater 4-Methyl-2-pentanone (MIBK) 6200 B-2011 Groundwater Acetone 6200 B-2011 Groundwater Vinyl acetate 6200 B-2011 Water 2-Butanone 6200 B-2011 Water 2-Hexanone 6200 B-2011 Water 4-Methyl-2-pentanone (MIBK) 6200 B-2011 Water Acetone 6200 B-2011 Water Vinyl acetate Eurofins Lancaster Laboratories Environment Testing, LLC Page 52 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Method Summary Job ID: 410-201872-1Client: Kleinfelder Inc Project/Site: Former GNC Energy 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 53 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Sample Summary Client: Kleinfelder Inc Job ID: 410-201872-1 Project/Site: Former GNC Energy Lab Sample ID Client Sample ID Matrix Collected Received 410-201872-1 MW-21D Groundwater 12/17/24 10:20 12/21/24 10:15 410-201872-2 MW-21 Groundwater 12/17/24 10:58 12/21/24 10:15 410-201872-3 MW-2S Groundwater 12/17/24 11:39 12/21/24 10:15 410-201872-4 MW-2D Groundwater 12/17/24 12:19 12/21/24 10:15 410-201872-5 MW-17D Groundwater 12/17/24 13:40 12/21/24 10:15 410-201872-6 MW-17 Groundwater 12/17/24 13:32 12/21/24 10:15 410-201872-7 MW-5SR Groundwater 12/18/24 08:49 12/21/24 10:15 410-201872-8 MW-5DR Groundwater 12/18/24 09:26 12/21/24 10:15 410-201872-9 MW-27 Groundwater 12/18/24 10:09 12/21/24 10:15 410-201872-10 MW-11D Groundwater 12/18/24 11:30 12/21/24 10:15 410-201872-11 Trip Blank Water 12/17/24 00:00 12/21/24 10:15 Eurofins Lancaster Laboratories Environment Testing, LLCPage 54 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page 55 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Login Sample Receipt Checklist Client: Kleinfelder Inc Job Number: 410-201872-1 Login Number: 201872 Question Answer Comment Creator: Santiago, Nathaniel 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 acceptable,where thermal pres is required(</=6C, not frozen). TrueCooler Temperature is recorded. N/AWV:Container Temp acceptable,where thermal pres is required (</=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. TrueThere are no discrepancies between the containers received and the COC. 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 56 of 56 1/6/2025 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15