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HomeMy WebLinkAboutMO-18065_18065_CA_MRP_20231028Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 i Table of Contents 1.0 Executive Summary ...................................................................................................................... 1 2.0 Introduction ................................................................................................................................... 2 2.1 Site Location ................................................................................................................................ 2 2.2 Purpose of Groundwater Monitoring Report ................................................................................. 2 3.0 Discussion of Sampling Results .................................................................................................. 2 3.1 Summary of Analytical Results ..................................................................................................... 2 4.0 Environmental History .................................................................................................................. 2 4.1 Summary of Key Events .............................................................................................................. 3 4.2 Release Information ..................................................................................................................... 4 5.0 Site Remediation ........................................................................................................................... 4 5.1 Summary of Remedial Activities to Date ....................................................................................... 4 5.2 Remediation System Status ......................................................................................................... 5 5.3 Remediation System Sampling Data ............................................................................................ 5 5.4 Future Remedial Activities ............................................................................................................ 5 5.5 Discharge Permits ........................................................................................................................ 5 6.0 Conclusion ..................................................................................................................................... 6 Tables Table 1 Well Construction Data Table 2 Listing of Groundwater Chemistry – July 18, 2023 Table 3 Chronologic Listing of Groundwater Elevations Table 4 Chronologic Listing of Groundwater Chemistry Table 5 Chronologic Listing of SVE System Emissions Figures Figure 1 Topographic Map – 2019 USGS Figure 2 Vicinity Map with Potable Well Locations Figure 3 Site Map with Shallow Monitoring Well Locations Figure 4 Site Map with Deep Monitoring Well Locations Figure 5 Site Map with Soil Vapor Extraction System Figure 6 Site Map with Passive Soil Venting System Appendices Appendix A Laboratory Analytical Results with COC’s Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 1 1.0 Executive Summary An apparent release of an unknown quantity of petroleum hydrocarbons occurred at the site prior to October 1997. The location of the release is unknown although previous reports suggest a surface release proximal to the former loading rack. • On October 21, 1997 DENR issues Notice of Regulatory Requirement (NORR) requiring site assessment related to a reported diesel fuel surface spill. • Thompson Geological and Environmental Services (TGES) submitted a Comprehensive Site Assessment to DENR on June 29, 1998. • TGES submitted a CSA Addendum on October 25, 1998. • Karen E. Heater, P.E. submitted a Corrective Action Plan (CAP) on April 6, 1999. • Duncklee & Dunham Environmental Consultants supervised the removal of 1,526 tons of petroleum impacted soil and applied ORC (oxygen release compound) to the base of the excavation in May 2003. • Haggett Engineering Associates, Inc. (HEA) submitted a CAP Addendum on July 15, 2014. • DENR approved the CAP Addendum on July 25, 2014. • Startup of the Soil Vapor Extraction System was completed on January 12, 2015. Six (6) monitoring wells were sampled on July 18, 2023 and are listed in Table 2. The Groundwater samples from monitoring wells MW-3D, MW-7D and MW-9 were reported to contain petroleum hydrocarbon constituents above the 2L standard. The concentration of Benzene in monitoring well MW-3D was reported at 1.11 ug/l which is a slight increase from BDL. Concentrations in MW-7D decreased from 431 ug/l to 3.15 ug/l and concentrations in MW-9 increased from BDL to 1.43 ug/l. Groundwater elevations were higher in MW-14 and MW-14D than those reported during the January 31, 2023 gauging. However, the elevations in the other wells were similar to those reported previously. The SVE system was reprogrammed to operate on a cycle to improve efficiency. Air emission samples are no longer collected as the concentrations had dropped to BDL or near BDL. HEA recommends that the monitoring wells at the site be resampled in January 2024. Sampling should include monitoring wells MW-3D, MW-7D, MW-9, MW-14 and MW-14D. In addition, sampling of the water supply wells should continue. Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 2 2.0 Introduction 2.1 Site Location Home Concrete and Supply, LLC (formerly Steele Feed and Seed) is located at 11575 Graham Road, in Mt. Ulla, North Carolina (figures 1 & 2). The property was previously used by Home Oil Company for the bulk storage of heating oil and motor fuels. Figure 3 illustrates the current layout of the site. A bulk storage facility was operated at the site from the early 1970’s until the mid 1990’s. The bulk storage facility consisted of five aboveground storage tanks (AST’s), a loading rack and gasoline dispenser island. 2.2 Purpose of Groundwater Monitoring Report This report is intended to provide a summary of the remediation completed and to recommend changes that may be necessary to enhance the remedial effort. 3.0 Discussion of Sampling Results 3.1 Summary of Analytical Results The groundwater in the monitoring wells has been periodically sampled to determine the concentration of hydrocarbon constituents present. Tables 2, 3 and 4 are provided to summarize the groundwater data collected during sampling events. Table 2 provides a summary of the analytical data from the most recent sampling event. Table 3 provides a chronologic listing of the groundwater elevation data and table 4 provides a chronologic listing of the groundwater chemistry. Table 5 provides a chronologic listing of the soil vapor extraction (SVE) system emissions. Six (6) monitoring wells were sampled on July 18, 2023 as shown in Table 2. The Groundwater samples from monitoring wells MW-3D, MW-7D and MW-9 were reported to contain petroleum hydrocarbon constituents above the 2L standard. An air emission sample was not collected during the July 18, 2023 site visit. Recent samples have shown very little constituents so the sampling has been discontinued. Operation of the SVE continues on a cycle to promote biodegradation within the soil. The SVE system has operated 3,137.9 hours over the past year. 4.0 Environmental History Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 3 4.1 Summary of Key Events • October 21, 1997 → DENR issues Notice of Regulatory Requirement. • December 8, 1997 → Well survey completed by Thompson Geological. • June 30, 1998 → Comprehensive Site Assessment Report submitted to DENR by Thompson Geological. • July 1998 → DENR issues Notice of Regulatory Requirement. • July 29, 1998 → AFVR conducted at site on MW-7R by Thompson Geological. • October 25, 1998 → Comprehensive Site Assessment Addendum submitted to DENR by Thompson Geological. • April 6, 1999 → Corrective Action Plan submitted to DENR by Karen Heater, P.E. • May 16, 2003 → DENR issues injection permit for ORC. • May 2003 → 1,526 tons of petroleum impacted soils are excavated and ORC (oxygen release compound) sprayed into the excavation. • July 7, 2004 → Soil Excavation and Groundwater Monitoring Report submitted to DENR by Duncklee & Dunham. • December 22, 2004 → Injection Pilot Test and Groundwater Monitoring Report submitted to DENR by Duncklee & Dunham. • September 30, 2005 → Application for Injection Well Permit submitted by Duncklee & Dunham. • January 24, 2013 → Updated receptor survey completed by Duncklee & Dunham. • May 24, 2013→ Groundwater Monitoring Report submitted to DENR by Duncklee & Dunham. • October 29-30, 2013 → Soil sampling completed at the site using direct push methods to determine current distribution of petroleum hydrocarbons in the unsaturated soils. • December 11-12, 2013 → Groundwater sampling completed at the site to determine current distribution of petroleum hydrocarbon constituents in the aquifer. • January 22, 2014 → Summary of Soil and Groundwater Sampling Report submitted to DENR by Griffith Enterprises, Inc. • May 5, 2014 → SVE Pilot Test wells installed at the site. Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 4 • May 22, 2014 → SVE Pilot Test completed at the site by Haggett Engineering Associates, Inc. • July 15, 2014 → Corrective Action Plan Addendum submitted to DENR by Haggett Engineering Associates, Inc. • July 25, 2014 → DENR approves Corrective Action Plan (CAP). • August 11, 2014 → Request for Bids issued for the SVE System Fabrication. • August 28, 2014 → Bids received for the SVE System Fabrication • September 8, 2014 → Order placed with PRM for SVE System. • October 1, 2014 → Submittal received from PRM for the SVE System Fabrication. • October 12, 2014 → Installation of SVE and air inlet wells begins at the site. • January 12, 2015 → SVE System start-up completed by PRM. • February 24, 2015 → SVE Start-up Report submitted to DENR by Haggett Engineering Associates, Inc. 4.2 Release Information An apparent release of an unknown quantity of petroleum hydrocarbons occurred at the site proximal to the former AST System prior to September 1997. Information from previous reports indicates that there may have been a surface spill of diesel fuel proximal to the loading rack. Sampling results indicate the presence of petroleum hydrocarbon constituents typical of gasoline and diesel fuel in the soil and groundwater. 5.0 Site Remediation 5.1 Summary of Remedial Activities to Date Information from previous reports indicates that following a surface release of diesel fuel prior to September 1997, soils were excavated and removed from the site. An AFVR (aggressive fluid vapor recovery) event was completed on MW-7R proximal to the former loading rack on July 29, 1998. In May 2003, 1,526 tons of petroleum impacted soils were excavated from the site. Following this excavation, ORC® (Oxygen Release Compound) was applied as a slurry to the base of the excavation. In July 2003 ORC was injected into the sub-surface under a permit issued by the UIC Program. The current SVE (soil vapor extraction) system began operation on January 12, 2015. Since the initial air emission sampling on January 12, 2015, the daily emissions have decreased by more than 99%. We believe this reduction is an indication that the concentrations of the petroleum hydrocarbon constituents in the sub-surface soils have been reduced. However, the concentration in the off-gas is influenced by many factors including Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 5 the depth to groundwater. As the groundwater surface rises there is a corresponding reduction in the soil that is exposed to remediation by the vapor extraction system. Based on the results of the emission sampling, we estimate the removal of approximately 304.74 kg of petroleum hydrocarbon constituents by the soil vapor extraction system. In addition to the removal of petroleum hydrocarbons constituents in the air stream, the SVE system also introduces oxygen into the subsurface with promotes bio-remediation by naturally occurring microbes in the soil. The air sample collected on January 31, 2022 reported a slight increase in concentrations. Due the low concentrations of emissions reported in recent emission samples, the sampling has been discontinued. Operation of the SVE continues on a programmed cycle to introduce oxygen into the subsurface promoting biodegradation. Results of the recent groundwater sampling indicate that the concentrations of petroleum hydrocarbon constituents in the groundwater have decreased. Based on the analytical results from the July 18, 2023 sampling, monitoring wells MW-3D, MW-7D and MW-9 contain benzene at a concentration slightly above the 2L standards. No other wells were reported to contain constituents exceeding the 2L standards. 5.2 Remediation System Status The SVE system began operation on January 12, 2015 and is currently operating on a controlled cycle to maximize efficiency. Run time for the system was reported to be 22,246.0 hours during the July 18, 2023 site visit. This appears to be erroneous, but the meter may have been adjusted during the recent reprogramming. The previous run time was recorded to be 3,138.2 on January 31, 2023. Total run time for the system is approximately 44,215 hours. 5.3 Remediation System Sampling Data Emissions from the SVE system were sampled following startup and have been sampled periodically since that time. Table 5 presents a Chronologic Listing of the SVE Emissions. Sampling of the emissions has been discontinued. 5.4 Future Remedial Activities The Corrective Action Plan (CAP) approved on July 25, 2014 included the injection of Boss 200® into the aquifer to address groundwater contamination. Based on the results of the October 4, 2022 groundwater sampling we believe that the operation and sampling of the SVE should continue to the extent practical. Although the emissions are minimal, we believe the circulation of air through the unsaturated soils does enhance the biodegradation of the hydrocarbon constituents. The results do not support the need for additional groundwater remediation. Additional sampling of select groundwater monitoring wells and potable water wells should be completed in January 2024. Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 6 5.5 Discharge Permits No discharge permits are required for this system. 6.0 Conclusion The area proximal to the site is currently not served by a public water system. Therefore, homes and businesses located proximal to the site depend on groundwater for their water supply. Groundwater samples collected on July 18, 2023 indicate the presence of petroleum hydrocarbon constituents in levels exceeding the 15A NCAC 2L Class GA groundwater standard. The analytical results indicate an overall decrease in concentrations in the monitoring wells at the site. Concentrations at the site appear to vary as the groundwater levels rise and fall. The SVES was reprogrammed to operate on a cycle during daylight hours to maximize efficiency. Sampling of the SVES discharge is no longer required due to the near BDL concentrations. Based on the groundwater data from the sample event, HEA recommends the continued operation of the SVE system to promote biodegradation. The SVE system operation should be adjusted to maximize the flow in the most impacted areas (see Figure 5 for valve settings). The following operation regime was programmed into the SVE control system: • 7 AM to 8 AM • 12 PM to 1 PM • 5 PM to 6 PM We do not believe it will be necessary to proceed with additional groundwater remediation based on the current concentrations of petroleum hydrocarbon constituents in the groundwater. Monitoring well MW-16DD has been historically BDL since 2018. HEA therefore recommends that Monitoring well MW-16DD be properly abandoned to reduce the risk to the aquifer(s) and cost for maintenance. HEA recommends the following wells to be sampled in June 2023: • MW-3D • MW-7D • MW-9 • MW-14 • MW-14D Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 7 • WRHG potable water well • RE Pruitt potable water well • FBN Dev Potable water well • JR Steele potable water well (if back in service) Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 Tables Table 1: Well Construction Data Table 2: Listing of Groundwater Chemistry – July 18, 2023 Table 3: Chronologic Listing of Groundwater Elevations Table 4: Chronologic Listing of Groundwater Chemistry Table 5: Chronologic Listing of SVES Emissions Monitoring Well Date Casing Total Screened Slot TOC Cover Completed Diameter Depth Interval Size Elevation Type (inch)(feet)(feet BGS)(inch)(feet) MW-3D 2 35.0 33 to 35 0.010 766.53 flush MW-7D 2 60.0 50 to 60 0.010 765.34 flush MW-9 Aug-98 2 30.0 15 to 30 0.010 761.45 flush MW-9D Aug-98 2 60.0 58 to 60 0.010 761.65 flush MW-14 Jun-03 2 26.0 6 to 26 0.010 764.05 flush MW-14D Jun-03 2 60.0 50 to 60 0.010 763.85 flush MW-16DD 26-Mar-13 2 80.0 75 to 80 0.010 765.98 flush Home Concrete and Supply, LLC 11575 Graham Road Mt. Ulla, NC 28125 Well Construction Data Table 1 Page 1 of 1 A c e t o n e A c r o l e i n A c r y l o n i t r i l e B e n z e n e B r o m o b e n z e n e B r o m o d i c h l o r o m e t h a n e B r o m o f o r m B r o m o m e t h a n e n - B u t y l b e n z e n e s e c - B u t y l b e n z e n e t e r t - B u t y l b e n z e n e C a r b o n t e t r a c h l o r i d e C h l o r o b e n z e n e C h l o r o d i b r o m o m e t h a n e C h l o r o e t h a n e 2 - C h l o r o e t h y l v i n y l e t h e r C h l r o r f o r m C h l o r o m e t h a n e 2 - C h l o r o t o l u e n e 4 - C h l o r o t o l u e n e 1 , 2 - D i b r o m o - 3 - C h l o r o p r o p a n e 1 , 2 - D i b r o m o m e t h a n e D i b r o m o m e t h a n e 1 , 2 - D i c h l o r o b e n z e n e 1 , 3 - D i c h l o r o b e n z e n e 1 , 4 - D i c h l o r o b e n z e n e D i c h l o r o d i f l u o r o m e t h a n e 1 , 1 - D i c h l o r o e t h a n e 1 , 2 - D i c h l o r o e t h a n e 1 , 1 - D i c h l o r o e t h e n e c i s - 1 , 2 - D i c h l o r o e t h e n e t r a n s - 1 , 2 - D i c h l o r o e t h e n e 1 , 2 - D i c h l o r o p r o p a n e 1 , 1 - D i c h l o r o p r o p e n e µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l Sample Collect ID Date MW-3D 1/31/2023 BDL BDL BDL 1.11 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL MW-7D 1/31/2023 BDL BDL BDL 3.15 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL MW-9 1/31/2023 BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.43 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL MW-9D 1/31/2023 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL MW-14 1/31/2023 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL MW-14D 1/31/2023 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL WRHG 1/31/2023 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL RE Pruett 1/31/2023 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL FBN DEV 1/31/2023 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL Notes Values shown in Bold Red text exceed the 15A NCAC 2L class GA (drinking water) standard. Values in Green text are above the detection limit, but below the 2L Standard. ValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValue Parameter  Units  Value Value Value Home Concrete and Supply. LLC 11575 Graham Road Mt. Ulla, North Carolina Listing of Groundwater Chemistry - July 18, 2023 8260BMethod  Table 2 Page 1 of 2 Sample Collect ID Date MW-3D 1/31/2023 MW-7D 1/31/2023 MW-9 1/31/2023 MW-9D 1/31/2023 MW-14 1/31/2023 MW-14D 1/31/2023 WRHG 1/31/2023 RE Pruett 1/31/2023 FBN DEV 1/31/2023 Notes Parameter  Units  Method  1 , 3 - D i c h l o r o p r o p a n e c i s - 1 , 3 - D i c h l o r o p r o p e n e t r a n s - 1 , 3 - D i c h l o r o p r o p e n e 2 , 2 - D i c h l o r o p r o p a n e D i - i s o p r o p y l e t h e r E t h y l b e n z e n e H e x a c h l o r o - 1 , 3 - b u t a d i e n e I s o p r o p y l b e n z e n e p - I s o p r o p y l t o l u e n e 2 - B u t a n o n e ( M E K ) M e t h y l e n e C h l o r i d e 4 - M e t h y l - 2 - p e n t a n o n e ( M I B K ) M e t h y l - t e r t - b u t y l - e t h e r N a p h t h a l e n e n - P r o p y l b e n z e n e S t y r e n e 1 , 1 , 1 , 2 - T e t r a c h l o r o e t h a n e 1 , 1 , 2 , 2 - T e t r a c h l o r o e t h a n e 1 , 1 , 2 - T r i c h l o r o t r i f l u o r o e t h a n e T e t r a c h l o r o e t h e n e T o l u e n e 1 , 2 , 3 - T r i c h l o r o b e n z e n e 1 , 2 , 4 - T r i c h l o r o b e n z e n e 1 , 1 , 1 - T r i c h l o r o e t h a n e 1 , 1 , 2 - T r i c h l o r o e t h a n e T r i c h l o r o e t h e n e T r i c h l o r o f l u o r o m e t h a n e 1 , 2 , 3 - T r i c h l o r o p r o p a n e 1 , 2 , 4 - T r i m e t h y l b e n z e n e 1 , 2 , 3 - T r i m e t h y l b e n z e n e 1 , 3 , 5 - T r i m e t h y l b e n z e n e V i n y l C h l o r i d e X y l e n e s , T o t a l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l µg/l BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3.23 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 7.65 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL Bold Red text exceed the 15A NCAC 2L class GA (drinking water) standard. 8260B Home Concrete and Supply. LLC 11575 Graham Road Mt. Ulla, North Carolina Listing of Groundwater Chemistry - July 18, 2023 ValueValueValueValueValueValueValueValueValueValueValue ValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValueValue Table 2 Page 2 of 2 Monitoring Well Elevation (ft)(ft) Date (ft) Depth to Water (ft) NAPL Thickness (ft) Groundwater Elevation (ft) MW-1 767.27 5 to 20 2/13/1998 NA 7.13 NA 760.14 6/10/1998 NA 8.08 NA 759.19 1/20/2004 NA 13.74 NA 753.53 7/27/2004 NA 14.66 NA 752.61 1/19/2005 NA 11.92 NA 755.35 7/5/2005 NA 12.48 NA 754.79 1/10/2006 NA 11.64 NA 755.63 10/7/2009 NA 15.45 NA 751.82 3/13/2012 NA 15.38 NA 751.89 3/25/2013 NA 17.88 NA 749.39 12/11/2013 NA 16.32 NA 750.95 3/11/2015 NA 16.25 NA 751.02 10/4/2016 NA 19.20 NA 748.07 2/14/2019 NA 9.17 NA 758.10 MW-2 765.70 5 to 18 2/13/1998 NA 5.61 NA 760.09 6/10/1998 NA NG NA NG 1/20/2004 NA 13.47 NA 752.23 7/27/2004 NA 15.33 NA 750.37 1/19/2005 NA 10.47 NA 755.23 7/5/2005 NA 12.37 NA 753.33 1/10/2006 NA 10.13 NA 755.57 10/7/2009 NA NG NA NG 3/13/2012 NA NG NA NG 3/25/2013 NA NG NA NG 12/11/2013 NA 16.64 NA 749.06 3/11/2015 NA 15.22 NA 750.48 10/4/2016 NA 19.89 NA 745.81 2/14/2019 NA 7.95 NA 757.75 MW-3 766.32 5 to 20 2/13/1998 NA 7.55 NA 758.77 6/10/1998 NA 9.35 NA 756.97 1/20/2004 NA 15.07 NA 751.25 Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Elevations Table 3 Page 1 of 10 Monitoring Well Elevation (ft)(ft) Date (ft) Depth to Water (ft) NAPL Thickness (ft) Groundwater Elevation (ft) Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Elevations MW-3 766.32 5 to 20 7/27/2004 NA 17.03 NA 749.29 1/19/2005 NA 13.02 NA 753.30 7/5/2005 NA 13.90 NA 752.42 1/10/2006 NA 12.64 NA 753.68 10/7/2009 NA 19.20 NA 747.12 3/13/2012 NA 16.53 NA 749.79 3/25/2013 NA 19.22 NA 747.10 12/11/2013 NA 19.06 NA 747.26 3/11/2015 NA 18.15 NA 748.17 6/2/2016 NA 16.00 NA 750.32 10/4/2016 NA 19.03 NA 747.29 3/29/2017 NA 19.35 NA 746.97 5/2/2018 NA 16.96 NA 749.36 2/14/2019 NA 10.13 NA 756.19 8/7/2019 NA 12.71 NA 753.61 4/1/2020 NA 9.43 NA 756.89 3/24/2021 NA 5.35 NA 760.97 9/15/2021 NA 13.30 NA 753.02 3/15/2022 NA 12.49 NA 753.83 10/4/2022 NA 14.35 NA 751.97 MW-3D 766.53 33 to 35 2/13/1998 NA 7.50 NA 759.03 6/10/1998 NA 10.00 NA 756.53 1/20/2004 NA 14.79 NA 751.74 7/27/2004 NA 17.11 NA 749.42 1/19/2005 NA 12.76 NA 753.77 7/5/2005 NA 13.67 NA 752.86 1/10/2006 NA 12.81 NA 753.72 10/7/2009 NA 20.69 NA 745.84 3/13/2012 NA 16.27 NA 750.26 3/25/2013 NA 19.33 NA 747.20 12/11/2013 NA 19.05 NA 747.48 Table 3 Page 2 of 10 Monitoring Well Elevation (ft)(ft) Date (ft) Depth to Water (ft) NAPL Thickness (ft) Groundwater Elevation (ft) Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Elevations MW-3D 766.53 33 to 35 3/11/2015 NA 17.97 NA 748.56 6/2/2016 NA 15.75 NA 750.78 10/4/2016 NA 21.32 NA 745.21 3/29/2017 NA 20.68 NA 745.85 5/2/2018 NA 16.35 NA 750.18 2/14/2019 NA 10.24 NA 756.29 8/7/2019 NA 12.90 NA 753.63 4/1/2020 NA 9.48 NA 757.05 3/24/2021 NA 5.60 NA 760.93 9/15/2021 NA 12.90 NA 753.63 3/15/2022 NA 12.89 NA 753.64 10/4/2022 NA 14.55 NA 751.98 1/31/2023 NA 11.27 NA 755.26 7/18/2023 NA 11.86 NA 754.67 MW-4 766.50 5 to 20 2/13/1998 NA 8.97 NA 757.53 6/10/1998 NA 10.00 NA 756.50 1/20/2004 NA 15.28 NA 751.22 7/27/2004 NA 17.38 NA 749.12 1/19/2005 NA 13.27 NA 753.23 7/5/2005 NA 14.15 NA 752.35 1/10/2006 NA 13.22 NA 753.28 10/7/2009 NA DRY NA DRY 3/13/2012 NA 16.74 NA 749.76 3/25/2013 NA 19.77 NA 746.73 12/11/2013 NA 18.92 NA 747.58 3/11/2015 NA 17.42 NA 749.08 10/4/2016 2/14/2019 NA 10.90 NA 755.60 MW-5 760.12 5 to 20 2/13/1998 NA 6.34 NA 753.78 6/10/1998 NA 9.31 NA 750.81 1/20/2004 NA 12.57 NA 747.55 DRY Table 3 Page 3 of 10 Monitoring Well Elevation (ft)(ft) Date (ft) Depth to Water (ft) NAPL Thickness (ft) Groundwater Elevation (ft) Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Elevations MW-5 760.12 5 to 20 7/27/2004 NA 14.90 NA 745.22 1/19/2005 NA 10.53 NA 749.59 7/5/2005 NA 12.15 NA 747.97 1/10/2006 NA 10.55 NA 749.57 10/7/2009 NA NG NA NG 3/13/2012 NA 13.72 NA 746.40 3/25/2013 NA 16.31 NA 743.81 12/11/2013 NA 15.86 NA 744.26 3/11/2015 NA 14.50 NA 745.62 10/4/2016 NA 19.30 NA 740.82 3/29/2017 NA 17.62 NA 742.50 5/2/2018 NA 13.14 NA 746.98 2/14/2019 NA 8.92 NA 751.20 MW-6 765.14 2 to 17 6/10/1998 NA 10.88 NA 754.26 1/20/2004 NA 12.78 NA 752.36 7/27/2004 NA NG NA NG 1/19/2005 NA NG NA NG 7/5/2005 NA 11.66 NA 753.48 1/10/2006 NA 10.68 NA 754.46 10/7/2009 NA NG NA NG 3/13/2012 NA DRY NA DRY 3/25/2013 NA NG NA NG 12/11/2013 NA DRY NA DRY MW-7D 765.34 50 to 60 6/10/1998 NA 8.55 NA 756.79 1/20/2004 NA 13.97 NA 751.37 7/27/2004 NA 16.18 NA 749.16 1/19/2005 NA 11.80 NA 753.54 7/5/2005 NA 12.89 NA 752.45 1/10/2006 NA 11.53 NA 753.81 10/7/2009 NA 18.41 NA 746.93 This Well Converted to SVE Table 3 Page 4 of 10 Monitoring Well Elevation (ft)(ft) Date (ft) Depth to Water (ft) NAPL Thickness (ft) Groundwater Elevation (ft) Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Elevations MW-7D 765.34 50 to 60 3/13/2012 NA NG NA NG 3/25/2013 NA 18.31 NA 747.03 12/11/2013 NA 17.40 NA 747.94 3/11/2015 NA 16.62 NA 748.72 6/2/2016 NA 14.89 NA 750.45 10/4/2016 NA 20.52 NA 744.82 3/29/2017 NA 19.35 NA 745.99 5/2/2018 NA 16.59 NA 748.75 2/14/2019 NA 9.25 NA 756.09 8/7/2019 NA 11.95 NA 753.39 4/1/2020 NA 8.58 NA 756.76 3/24/2021 NA 5.14 NA 760.20 9/15/2021 NA 12.55 NA 752.79 3/15/2022 NA 11.18 NA 754.16 10/4/2022 NA 13.33 NA 752.01 1/31/2023 NA 9.48 NA 755.86 7/18/2023 NA 9.83 NA 755.51 MW-8 758.22 5 to 20 6/10/1998 NA 9.25 NA 748.97 1/20/2004 NA 13.71 NA 744.51 7/27/2004 NA 18.15 NA 740.07 1/19/2005 NA 10.79 NA 747.43 7/5/2005 NA 14.09 NA 744.13 1/10/2006 NA 11.43 NA 746.79 10/7/2009 NA NG NA NG 3/13/2012 NA 15.98 NA 742.24 3/25/2013 NA 19.24 NA 738.98 12/11/2013 NA 19.45 NA 738.77 3/11/2015 NA 17.52 NA 740.70 10/4/2016 2/14/2019 NA 8.92 NA 749.30 MW-9 761.45 15 to 30 1/20/2004 NA 11.80 NA 749.65 DRY Table 3 Page 5 of 10 Monitoring Well Elevation (ft)(ft) Date (ft) Depth to Water (ft) NAPL Thickness (ft) Groundwater Elevation (ft) Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Elevations MW-9 761.45 15 to 30 7/27/2004 NA 14.11 NA 747.34 1/19/2005 NA 9.69 NA 751.76 7/5/2005 NA 10.96 NA 750.49 1/10/2006 NA 9.61 NA 751.84 10/7/2009 NA 16.15 NA 745.30 3/13/2012 NA 13.10 NA 748.35 3/25/2013 NA 16.24 NA 745.21 12/11/2013 NA 15.46 NA 745.99 3/11/2015 NA 13.55 NA 747.90 10/4/2016 NA 18.38 NA 743.07 2/14/2019 NA 7.30 NA 754.15 7/18/2023 NA 8.55 NA 752.90 MW-9D 761.65 58 to 60 1/20/2004 NA 11.74 NA 749.91 7/27/2004 NA 14.03 NA 747.62 1/19/2005 NA 9.57 NA 752.08 7/5/2005 NA 10.83 NA 750.82 1/10/2006 NA 9.80 NA 751.85 10/7/2009 NA 15.45 NA 746.20 3/13/2012 NA 13.03 NA 748.62 3/25/2013 NA 16.05 NA 745.60 12/11/2013 NA 15.54 NA 746.11 3/11/2015 NA 14.35 NA 747.30 10/4/2016 NA 18.42 NA 743.23 2/14/2019 NA 7.41 NA 754.24 8/7/2019 NA 10.37 NA 751.28 7/18/2023 NA 8.88 NA 752.77 MW-10 755.91 80 to 90 1/20/2004 NA 15.50 NA 740.41 7/27/2004 NA 18.50 NA 737.41 1/19/2005 NA 13.59 NA 742.32 7/5/2005 NA 15.58 NA 740.33 1/10/2006 NA 14.46 NA 741.45 Table 3 Page 6 of 10 Monitoring Well Elevation (ft)(ft) Date (ft) Depth to Water (ft) NAPL Thickness (ft) Groundwater Elevation (ft) Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Elevations MW-10 755.91 80 to 90 10/7/2009 NA 20.70 NA 735.21 3/13/2012 NA 17.49 NA 738.42 3/25/2013 NA 19.99 NA 735.92 12/11/2013 NA 20.42 NA 735.49 3/11/2015 NA 17.56 NA 738.35 10/4/2016 NA 23.36 NA 732.55 2/14/2019 NA 12.64 NA 743.27 8/7/2019 NA 16.32 NA 739.59 MW-11 757.56 14 to 29 1/20/2004 NA 15.03 NA 742.53 7/27/2004 NA 18.40 NA 739.16 1/19/2005 NA 12.35 NA 745.21 7/5/2005 NA 15.19 NA 742.37 1/10/2006 NA 13.33 NA 744.23 10/7/2009 NA 20.60 NA 736.96 3/13/2012 NA 16.95 NA 740.61 3/25/2013 NA 19.87 NA 737.69 12/11/2013 NA 20.07 NA 737.49 3/11/2015 NA 19.41 NA 738.15 10/4/2016 NA 23.83 NA 733.73 3/29/2017 NA 21.38 NA 736.18 5/2/2018 NA 13.06 NA 744.50 2/14/2019 NA 11.11 NA 746.45 8/7/2019 NA 13.20 NA 744.36 4/1/2020 NA 12.58 NA 744.98 3/24/2021 NA 7.80 NA 749.76 9/15/2021 NA 14.74 NA 742.82 3/15/2022 NA 13.60 NA 743.96 MW-12 757.63 14 to 29 1/20/2004 NA 13.63 NA 744.00 7/27/2004 NA 18.57 NA 739.06 1/19/2005 NA 10.62 NA 747.01 7/5/2005 NA 13.91 NA 743.72 Table 3 Page 7 of 10 Monitoring Well Elevation (ft)(ft) Date (ft) Depth to Water (ft) NAPL Thickness (ft) Groundwater Elevation (ft) Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Elevations MW-12 757.63 14 to 29 1/10/2006 NA 12.08 NA 745.55 10/7/2009 NA 19.90 NA 737.73 3/13/2012 NA 15.66 NA 741.97 3/25/2013 NA 18.80 NA 738.83 12/11/2013 NA 19.20 NA 738.43 3/11/2015 NA 17.34 NA 740.29 10/4/2016 NA 23.66 NA 733.97 2/14/2019 NA 10.97 NA 746.66 MW-13 760.35 14 to 29 1/20/2004 NA 11.07 NA 749.28 7/27/2004 NA 14.89 NA 745.46 1/19/2005 NA 11.41 NA 748.94 7/5/2005 NA 12.10 NA 748.25 1/10/2006 NA 10.85 NA 749.50 10/7/2009 NA 16.61 NA 743.74 3/13/2012 NA 13.84 NA 746.51 3/25/2013 NA 16.50 NA 743.85 12/11/2013 NA 16.02 NA 744.33 3/11/2015 NA 14.68 NA 745.67 10/4/2016 NA 19.33 NA 741.02 2/14/2019 NA 9.78 NA 750.57 MW-14 764.05 6 to 26 1/20/2004 NA 12.94 NA 751.11 7/27/2004 NA 15.26 NA 748.79 1/19/2005 NA 10.78 NA 753.27 7/5/2005 NA 11.90 NA 752.15 1/10/2006 NA 10.59 NA 753.46 10/7/2009 NA 17.35 NA 746.70 3/13/2012 NA 14.25 NA 749.80 3/25/2013 NA 17.39 NA 746.66 12/11/2013 NA 16.83 NA 747.22 3/11/2015 NA 15.08 NA 748.97 6/2/2016 NA 13.78 NA 750.27 Table 3 Page 8 of 10 Monitoring Well Elevation (ft)(ft) Date (ft) Depth to Water (ft) NAPL Thickness (ft) Groundwater Elevation (ft) Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Elevations MW-14 764.05 6 to 26 10/4/2016 NA 19.46 NA 744.59 3/29/2017 NA 18.84 NA 745.21 5/2/2018 NA 14.05 NA 750.00 2/14/2019 NA 8.52 NA 755.53 8/7/2019 NA 11.17 NA 752.88 4/1/2020 NA 8.61 NA 755.44 3/24/2021 NA 4.45 NA 759.60 9/15/2021 NA 11.87 NA 752.18 3/15/2022 NA 10.48 NA 753.57 10/4/2022 NA 12.25 NA 751.80 1/31/2023 NA 12.80 NA 751.25 7/18/2023 NA 9.25 NA 754.80 MW-14D 763.85 50 to 60 1/20/2004 NA 12.74 NA 751.11 7/27/2004 NA 15.06 NA 748.79 1/19/2005 NA 10.59 NA 753.26 7/5/2005 NA 11.75 NA 752.10 1/10/2006 NA 10.43 NA 753.42 10/7/2009 NA 17.22 NA 746.63 3/13/2012 NA 14.10 NA 749.75 3/25/2013 NA 17.16 NA 746.69 12/11/2013 NA 16.48 NA 747.37 3/11/2015 NA 15.27 NA 748.58 6/2/2016 NA 13.71 NA 750.14 10/4/2016 NA 19.38 NA 744.47 3/29/2017 NA 18.63 NA 745.22 5/2/2018 NA 14.05 NA 749.80 2/14/2019 NA 8.31 NA 755.54 8/7/2019 NA 11.10 NA 752.75 4/1/2020 NA 9.51 NA 754.34 3/24/2021 NA 4.04 NA 759.81 9/15/2021 NA 11.69 NA 752.16 Table 3 Page 9 of 10 Monitoring Well Elevation (ft)(ft) Date (ft) Depth to Water (ft) NAPL Thickness (ft) Groundwater Elevation (ft) Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Elevations MW-14D 763.85 50 to 60 3/15/2022 NA 10.18 NA 753.67 10/4/2022 NA 12.45 NA 751.40 1/31/2023 NA 12.64 NA 751.21 7/18/2023 NA 9.15 NA 754.70 MW-15 764.29 50 to 60 10/7/2009 NA 22.60 NA 741.69 3/13/2012 NA 16.37 NA 747.92 3/25/2013 NA 19.69 NA 744.60 12/11/2013 NA 19.45 NA 744.84 3/11/2015 NA 18.65 NA 745.64 10/4/2016 NA 21.26 NA 743.03 2/14/2019 NA 15.63 NA 748.66 MW-16DD 765.98 75 to 80 3/25/2013 NA 19.16 NA 746.82 12/11/2013 NA 18.14 NA 747.84 3/11/2015 NA 17.52 NA 748.46 10/4/2016 NA 21.38 NA 744.60 3/29/2017 NA 20.71 NA 745.27 5/2/2018 NA 16.33 NA 749.65 2/14/2019 NA 10.19 NA 755.79 3/24/2021 NA 5.20 NA 760.78 9/15/2021 NA 13.20 NA 752.78 3/15/2022 NA 12.37 NA 753.61 Table 3 Page 10 of 10 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l MW-1 2/16/1998 BDL BDL BDL BDL BDL BDL NA 7/27/2004 BDL BDL BDL BDL BDL BDL 7.7 1/19/2005 BDL BDL BDL BDL BDL BDL 4.3 7/5/2005 BDL BDL BDL BDL BDL BDL 5.7 1/11/2006 BDL BDL BDL BDL BDL BDL 5.9 10/7/2009 BDL BDL BDL BDL BDL BDL BDL 3/26/2013 BDL BDL BDL BDL BDL BDL BDL 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 2/14/2019 BDL BDL BDL BDL BDL BDL BDL MW-2 2/16/1998 BDL BDL BDL BDL BDL BDL NA 7/27/2004 BDL BDL BDL BDL BDL BDL BDL 1/19/2005 BDL BDL BDL BDL BDL BDL BDL 7/5/2005 BDL BDL BDL BDL BDL BDL BDL 1/11/2006 BDL BDL BDL BDL BDL BDL BDL 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 2/14/2019 BDL BDL BDL BDL BDL BDL BDL MW-3 2/16/1998 4400 1200 13000 9300 BDL 220 400 7/29/1998 12100 2020 19400 13940 NA NA 16400 12/22/1998 7850 3000 20600 13900 NA NA 1200 1/21/2004 7000 1700 16000 9300 <500 <500 <1000 7/27/2004 6300 2000 15000 10000 <500 <500 <1000 1/19/2005 8400 2800 22000 13000 <500 <500 <1000 7/6/2005 5700 1700 14000 8200 <500 <500 <1000 1/11/2006 8200 2500 20000 12000 <500 <500 <1000 3/14/2012 557 792 811 2435 BDL BDL 173 3/27/2013 876 1310 2120 10900 <5.0 <5.0 369 12/11/2013 1210 1840 2480 8670 BDL BDL 350 Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry Table 4 Page 1 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry MW-3 3/11/2015 950 1300 1500 7700 <1 <1 210 6/2/2016 <1 <1 <5 7.86 <1 <1 16.1 10/4/2016 2.22 10.4 <5 9.10 <1 <1 8.82 3/29/2017 BDL 3.39 BDL BDL BDL BDL 11.0 5/2/2018 BDL BDL BDL BDL BDL BDL BDL 2/14/2019 BDL BDL BDL BDL 134 19.9 BDL 8/7/2019 65.9 6.03 3.92 BDL 29.0 6.81 36.3 4/1/2020 BDL BDL BDL BDL BDL BDL BDL 3/24/2021 BDL BDL BDL BDL BDL BDL BDL 9/15/2021 BDL BDL BDL BDL BDL BDL BDL 3/15/2022 BDL BDL BDL BDL BDL BDL BDL 10/4/2022 BDL BDL BDL BDL BDL BDL BDL MW-3D 2/16/1998 440 720 2500 5300 BDL 300 360 7/29/1998 236 663 1250 2410 NA NA 775 12/22/1998 119 815 1360 3030 NA NA 764 1/13/2000 84.9 754 1030 2870 34.4 10.3 NA 9/12/2000 70 340 610 1360 90 BDL NA 3/16/2001 350 595 2620 3660 90 BDL 708 8/23/2001 240 1420 2410 5070 14.4 BDL 720 12/10/2002 400 630 2400 6300 BDL BDL 480 1/21/2004 4300 440 3000 8300 <50 200 710 7/27/2004 4900 320 2900 6900 <100 120 560 1/19/2005 5500 390 3900 8200 <100 240 790 7/6/2005 6500 370 3100 5700 240 120 500 1/11/2006 3600 <200 1400 2300 <200 <200 480 10/7/2009 7580 64.7 996 1160 154 30 587 3/14/2012 10900 <100 1400 2232 <100 <100 1180 3/27/2013 13400 196 1630 3100 282 <100 1050 12/11/2013 13700 111 1260 1608 251 BDL 415 3/11/2015 12000 <1 <5 1400 430 <1 <5 6/2/2016 7460 <1 <5 234 985 131 <5 Table 4 Page 2 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry MW-3D 10/4/2016 6100 <1 <5 137 885 111 <5 3/29/2017 4580 BDL 29.2 BDL 693 84.9 BDL 5/2/2018 9540 BDL 66.3 460 1020 129 BDL 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 8/7/2019 BDL BDL BDL BDL BDL BDL BDL 4/1/2020 2.08 BDL BDL BDL 7.04 1.98 BDL 3/24/2021 BDL BDL BDL BDL BDL BDL BDL 9/15/2021 13.5 BDL BDL BDL BDL BDL BDL 3/15/2022 BDL BDL BDL BDL BDL BDL BDL 10/4/2022 BDL BDL BDL BDL BDL BDL BDL 1/31/2023 BDL BDL BDL BDL BDL BDL BDL 7/18/2023 1.11 BDL BDL BDL BDL BDL BDL MW-4 2/16/1998 BDL BDL BDL BDL BDL BDL BDL 1/13/2000 BDL BDL BDL BDL BDL BDL BDL 7/27/2004 BDL BDL BDL BDL BDL BDL BDL 1/19/2005 BDL BDL BDL BDL BDL BDL BDL 7/5/2005 BDL BDL BDL BDL BDL BDL BDL 1/11/2006 BDL BDL BDL BDL BDL BDL BDL 3/26/2013 BDL BDL BDL BDL BDL BDL BDL 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 2/14/2019 BDL BDL BDL BDL BDL BDL BDL MW-5 2/16/1998 240 BDL BDL 41 150 BDL BDL 9/12/2000 51.2 BDL BDL 3.8 86.7 BDL NA 3/16/2001 BDL BDL BDL BDL 68.1 BDL NA 3/26/2013 BDL BDL BDL BDL BDL BDL BDL 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 10.9 <1 <5 <3 1.62 <1 <5 3/29/2017 BDL BDL BDL BDL BDL BDL BDL WELL NOT SAMPLED - DRY Table 4 Page 3 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry MW-5 5/2/2018 BDL BDL BDL BDL BDL BDL BDL 2/14/2019 BDL BDL BDL BDL BDL BDL BDL MW-6 3/27/1998 5 2 18 57 BDL 14 BDL 1/13/2000 BDL 4.7 4 20 BDL BDL NA MW-7D 4/17/1998 12000 1300 1400 6500 4700 BDL 250 12/22/1998 11000 1292 983 7000 NA NA 122 1/13/2000 12100 724 1300 10320 43.2 773 NA 9/12/2000 15700 1780 920 12780 1280 BDL NA 3/16/2001 13600 960 320 9900 1000 BDL NA 8/15/2001 13800 182 245 6460 1360 BDL NA 2/19/2003 15000 430 1500 6900 570 BDL 430 8/21/2003 9500 <500 750 6800 <600 <500 <1000 10/6/2003 11000 BDL 1000 6800 BDL BDL BDL 11/6/2003 13000 BDL 1100 2900 BDL BDL BDL 1/21/2004 13000 <500 1400 6800 <500 <500 <1000 4/8/2004 12000 <500 1500 5100 <500 <500 <1000 7/27/2004 16000 <500 1700 6400 <500 <500 <1000 1/19/2005 13000 610 2200 5600 <500 <500 <1000 7/6/2005 16000 <500 1200 2800 <500 <500 <1000 1/11/2006 12000 <500 1600 5200 <500 <500 <1000 10/7/2009 17400 19.7 48.9 54.4 145 <10 416 3/27/2013 12400 128 142 901 <100 <100 <100 12/11/2013 9900 14.4 30.0 20.1 9 BDL 353 3/11/2015 5800 <1 11 19 BDL 7.7 130 6/2/2016 338 <1 <5 <3 5.72 3.42 <5 10/4/2016 707 1.28 <5 5.69 5.18 3.10 7.50 3/29/2017 30.3 32.1 2.83 172 BDL BDL 7.78 5/2/2018 BDL BDL BDL BDL BDL BDL BDL 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 8/7/2019 BDL BDL BDL BDL BDL BDL BDL 4/1/2020 2.11 BDL BDL BDL BDL BDL BDL Table 4 Page 4 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry MW-7D 3/24/2021 BDL BDL BDL BDL BDL BDL BDL 9/15/2021 20.3 BDL BDL BDL 3.61 BDL BDL 3/15/2022 BDL BDL BDL BDL BDL BDL BDL 10/4/2022 518 1.44 BDL 4.17 3.99 BDL BDL 1/31/2023 431 BDL BDL BDL BDL BDL BDL 7/18/2023 3.15 BDL BDL BDL BDL BDL BDL MW-8 4/17/1998 BDL BDL BDL BDL 10 BDL BDL 1/13/2000 BDL BDL BDL BDL 6 BDL BDL 3/16/2001 BDL BDL BDL BDL BDL BDL NA 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 2/14/2019 BDL BDL BDL BDL BDL BDL BDL MW-9 9/1/1998 1200 BDL BDL 690 390 NA 260 1/13/2000 682 BDL 5.9 255.3 5 136 NA 9/12/2000 991 BDL 11.1 351 128 BDL NA 3/16/2001 82.2 BDL BDL 36 11.8 1.3 27.1 8/15/2001 1180 BDL 52 272 63.1 NA 310 12/10/2002 900 BDL BDL 330 B BDL 380 7/3/2003 120 BDL BDL 72 15 BDL 55 8/21/2003 270 <5 <5 189 28 <5 210 10/6/2003 300 BDL BDL 170 35 BDL 220 11/6/2003 140 BDL BDL 99 20 BDL 88 1/20/2004 150 <5 <5 95 10 <5 95 4/8/2004 160 <5 <5 88 11 <5 95 7/27/2004 130 <5 <5 84 11 <5 92 1/19/2005 140 <5 <5 56 15 <5 110 7/5/2005 51 <1 <1 31 6.2 1.9 47 1/11/2006 67 <1 <1 22 19.0 <1 53 10/7/2009 3 <1 <1 <2 <1 <1 2.5 3/14/2012 <1 <1 <1 <2 <1 <1 <2 WELL NOT SAMPLED - DRY Table 4 Page 5 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry MW-9 3/26/2013 <1 <1 <1 <2 <1 <1 <2 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 7/18/2023 1.43 BDL BDL BDL BDL BDL BDL MW-9D 8/31/1998 110 BDL BDL 34 32 NA BDL 1/13/2000 23.2 22.6 42 133.4 BDL BDL NA 9/12/2000 BDL BDL BDL BDL BDL BDL NA 3/16/2001 BDL BDL BDL BDL BDL BDL NA 8/15/2001 58.4 BDL BDL 10.3 5 BDL BDL 12/10/2002 27 BDL BDL 14 4.3 BDL BDL 7/3/2003 120 BDL BDL 53 16 BDL 12 8/21/2003 92 <5 <5 57 12 <5 18 10/6/2003 90 BDL BDL 51 15 BDL 19 11/6/2003 92 BDL BDL 50 15 BDL 13 1/21/2004 88 <5 <5 51 5.7 <5 15 4/8/2004 91 <5 <5 51 <5 <<5 7/27/2004 110 <5 <5 68 15 <5 16 1/19/2005 220 <5 <5 87 33 <5 31 7/6/2005 160 <5 <5 76 27 <5 21 1/11/2006 93 <5 <5 53 9.8 <5 23 10/7/2009 3.6 <1 <1 3.3 <1 <1 <2 3/14/2012 2 <1 <1 3.3 <1 <1 <2 3/26/2013 1.8 <1 <1 6.5 <1 <1 <1 12/11/2013 89 BDL 1.1 2.8 BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 8/7/2019 BDL BDL BDL BDL BDL BDL BDL 7/18/2023 BDL BDL BDL BDL BDL BDL BDL Table 4 Page 6 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry MW-10 12/9/2002 BDL BDL BDL BDL BDL BDL BDL 1/20/2004 <1 <1 <1 <1 <1 <1 <2 7/27/2004 <1 <1 <1 <1 <1 <1 <2 1/19/2005 <1 <1 <1 <1 <1 <1 <2 7/5/2005 <1 <1 <1 <1 <1 <1 <2 1/11/2006 <1 <1 <1 <1 <1 <1 <2 10/7/2009 <1 <1 <1 <1 <1 <1 <2 3/26/2013 <1 <1 <1 <2 <1 <1 <1 12/11/2013 BDL BDL BDL BDL 0.67 BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 2/14/2019 BDL BDL BDL BDL 3.92 BDL BDL 8/7/2019 BDL BDL BDL BDL 2.21 BDL BDL MW-11 12/9/2002 BDL BDL BDL BDL 1.2 BDL BDL 7/27/2004 <1 <1 <1 <1 <1 <1 <2 1/19/2005 <1 <1 <1 <1 <1 <1 <2 7/5/2005 <1 <1 <1 <1 <1 <1 <2 1/11/2006 <1 <1 <1 <1 <1 <1 <2 10/7/2009 <1 <1 <1 <1 3.8 <1 <2 3/26/2013 <1 <1 <1 <2 7.5 <1 <1 12/11/2013 BDL BDL BDL BDL 9.9 BDL BDL 3/11/2015 <1 <1 <5 <3 3.2 <1 <5 10/4/2016 <1 <1 <5 <3 6.88 <1 <5 3/29/2017 BDL BDL BDL BDL 3.10 BDL 11.1 5/2/2018 BDL BDL BDL BDL 1.40 BDL BDL 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 8/7/2019 BDL BDL BDL BDL 1.70 BDL BDL 4/1/2020 BDL BDL BDL BDL BDL BDL BDL 3/24/2021 BDL BDL BDL BDL BDL BDL BDL 9/15/2021 BDL BDL BDL BDL BDL BDL BDL 3/15/2022 BDL BDL BDL BDL BDL BDL BDL Table 4 Page 7 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry MW-12 12/9/2002 BDL BDL BDL BDL BDL BDL BDL 7/27/2004 <1 <1 <1 <1 <1 <1 <2 1/19/2005 <1 <1 <1 <1 <1 <1 <2 7/5/2005 <1 <1 <1 <1 <1 <1 <2 1/11/2006 <1 <1 <1 <1 <1 <1 <2 10/7/2009 <1 <1 <1 <1 <1 <1 <2 3/26/2013 <1 <1 <1 <2 <1 <1 <1 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 2/14/2019 BDL BDL BDL BDL BDL BDL BDL MW-13 12/10/2002 35 BDL BDL 3 82 BDL BDL 1/20/2003 23 <1 <1 <1 25 <1 <2 7/27/2004 8.6 <1 <1 <1 12 <1 <2 1/19/2005 10 <1 <1 <1 22 <1 <2 7/5/2005 100 <1 <1 5.7 45 <1 8.3 1/11/2006 <1 <1 <1 <1 3.5 <1 <2 10/7/2009 <1 <1 <1 <1 1.5 <1 <2 3/14/2012 <1 <1 <1 <2 <1 <1 <2 3/26/2013 <1 <1 <1 <2 <1 <1 <1 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 2/14/2019 BDL BDL BDL BDL BDL BDL BDL MW-14 7/3/2003 2800 1700 1500 1900 1400 BDL 620 8/21/2003 3400 1500 1200 6300 1800 <100 620 10/6/2003 2900 1300 870 5300 1300 BDL 510 11/6/2003 2500 1300 840 1400 800 <100 390 1/20/2004 2400 590 420 1980 1100 <100 430 4/8/2004 2600 760 420 760 670 <100 360 7/27/2004 1700 450 340 1580 590 <100 430 Table 4 Page 8 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry MW-14 1/19/2005 1900 1400 820 4500 460 98 600 7/6/2005 1500 1600 860 5600 <100 110 440 1/11/2006 1300 1500 710 5100 <100 <100 490 10/7/2009 392 223 35.1 227 14.5 2.0 152 3/14/2012 266 919 165 1334 10.2 <1 287 3/27/2013 131 238 20.8 262 7.6 <5 45.6 12/11/2013 90.8 146 7.5 150.8 4.5 BDL 56.2 3/11/2015 83 65 5.8 100 1.8 <1 18 6/2/2016 <1 493 <5 964 <1 <1 39.2 10/4/2016 30.2 20.0 <5 29.3 <1 <1 57.8 3/29/2017 5.36 2.32 BDL 17.4 BDL BDL BDL 5/2/2018 BDL BDL BDL BDL BDL BDL BDL 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 8/7/2019 BDL BDL BDL BDL BDL BDL BDL 4/1/2020 1.81 BDL BDL BDL BDL BDL BDL 3/24/2021 BDL BDL BDL BDL BDL BDL BDL 9/15/2021 BDL BDL BDL BDL BDL BDL BDL 3/15/2022 BDL BDL BDL BDL BDL BDL BDL 10/4/2022 1.08 BDL BDL BDL BDL BDL BDL 1/31/2023 1.60 BDL BDL BDL BDL BDL BDL 7/18/2023 BDL BDL BDL BDL BDL BDL BDL MW-14D 7/3/2003 2900 36 110 2000 74 BDL 310 8/21/2003 4300 <100 120 4900 380 <100 540 10/6/2003 4100 BDL 110 4800 360 BDL 620 11/6/2003 4300 <100 BDL 2800 330 <100 410 1/20/2004 4600 <100 <100 3900 130 <100 430 4/8/2004 4000 <100 <100 2400 130 <100 350 7/27/2004 4600 <100 160 4200 <100 <100 470 1/19/2005 3300 <100 190 4800 <100 <100 560 7/6/2005 3300 <100 250 4200 <100 <100 400 1/11/2006 3000 110 270 4100 <20 <20 580 Table 4 Page 9 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry MW-14D 10/7/2009 15900 19.9 39.9 127 66.2 25.4 1110 3/14/2012 8060 <50 <50 <100 <50 <50 855 3/27/2013 9040 68.8 69.2 346 <50 <50 211 12/11/2013 552 1.0 0.80 2.9 1.1 0.80 23.9 3/11/2015 4500 1.2 12 16 7.1 11 23 6/2/2016 <1 <1 <5 <3 1.26 1.55 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 3/29/2017 BDL BDL BDL BDL BDL BDL BDL 5/2/2018 BDL BDL BDL BDL BDL BDL BDL 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 8/7/2019 59.1 BDL BDL BDL 3.85 BDL BDL 4/1/2020 1210 2.36 3.25 5.12 2.46 5.38 4.26 3/24/2021 39.3 BDL BDL BDL BDL BDL BDL 9/15/2021 BDL BDL BDL BDL BDL BDL BDL 3/15/2022 85.3 BDL BDL BDL BDL BDL BDL 10/4/2022 BDL BDL BDL BDL BDL BDL BDL 1/31/2023 385 BDL BDL BDL 4.17 BDL BDL 7/18/2023 BDL BDL BDL BDL BDL BDL BDL MW-15 10/7/2009 306 <1 1.5 145 2.0 16.8 <2 3/14/2012 71.2 <1 <1 14.1 <1 9.1 71.8 3/27/2013 14.2 <1 <1 <2 1.1 3.6 25.0 12/11/2013 BDL BDL BDL BDL BDL 0.79 BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 2/14/2019 BDL BDL BDL BDL BDL BDL BDL MW-16DD 3/27/2013 <1 <1 <1 <2 <1 <1 <1 12/11/2013 18.60 BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 10/4/2016 39.3 <1 <5 <3 1.15 <1 <5 3/29/2017 5.56 1.04 BDL 6.15 BDL BDL BDL 5/2/2018 BDL BDL BDL BDL BDL BDL BDL Table 4 Page 10 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry MW-16DD 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 4/1/2020 BDL BDL BDL BDL BDL BDL BDL 3/24/2021 BDL BDL BDL BDL BDL BDL BDL 9/15/2021 BDL BDL BDL BDL BDL BDL BDL 3/15/2022 BDL BDL BDL BDL BDL BDL BDL Table 4 Page 11 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry WRHG 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 6/2/2016 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 5/2/2018 BDL BDL BDL BDL BDL BDL BDL 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 8/7/2019 BDL BDL BDL BDL BDL BDL BDL 4/1/2020 BDL BDL BDL BDL BDL BDL BDL 3/24/2021 BDL BDL BDL BDL BDL BDL BDL 9/15/2021 BDL BDL BDL BDL BDL BDL BDL 3/15/2022 BDL BDL BDL BDL BDL BDL BDL 10/4/2022 BDL BDL BDL BDL BDL BDL BDL 1/31/2023 BDL BDL BDL BDL BDL BDL BDL 7/18/2023 BDL BDL BDL BDL BDL BDL BDL CR Bolick 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 9.5 <1 <5 6/2/2016 <1 <1 <5 <3 6.96 <1 <5 10/4/2016 2.10 <1 <5 <3 8.30 <1 <5 RE Pruett 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 6/2/2016 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 5/2/2018 BDL BDL BDL BDL BDL BDL BDL 2/14/2019 BDL BDL BDL BDL 1.33 BDL BDL 8/7/2019 BDL BDL BDL BDL 2.65 BDL BDL 4/1/2020 BDL BDL BDL BDL 2.29 BDL BDL 3/24/2021 BDL BDL BDL BDL 3.05 BDL BDL 9/15/2021 BDL BDL BDL BDL 4.63 BDL BDL 3/15/2022 BDL BDL BDL BDL 3.70 BDL BDL 10/4/2022 BDL BDL BDL BDL 3.78 BDL BDL 1/31/2023 BDL BDL BDL BDL 4.54 BDL BDL Table 4 Page 12 of 13 Well ID Date Benzene ug/l Ethylbenzene ug/l Toluene ug/l Xylenes ug/l MTBE ug/l ug/l Naphthalene ug/l Home Concrete and Supply, LLC 11575 Graham RoadMt. Ulla, NC 28125 Chronologic Listing of Groundwater Chemistry RE Pruett 7/18/2023 BDL BDL BDL BDL 7.65 BDL BDL FBN Dev.12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 6/2/2016 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 5/2/2018 BDL BDL BDL BDL BDL BDL BDL 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 8/7/2019 BDL BDL BDL BDL BDL BDL BDL 4/1/2020 BDL BDL BDL BDL BDL BDL BDL 3/24/2021 BDL BDL BDL BDL BDL BDL BDL 9/15/2021 BDL BDL BDL BDL BDL BDL BDL 3/15/2022 BDL BDL BDL BDL BDL BDL BDL 10/4/2022 BDL BDL BDL BDL BDL BDL BDL 1/31/2023 BDL BDL BDL BDL BDL BDL BDL 7/18/2023 BDL BDL BDL BDL BDL BDL BDL JR Steele 12/11/2013 BDL BDL BDL BDL BDL BDL BDL 3/11/2015 <1 <1 <5 <3 <1 <1 <5 6/2/2016 <1 <1 <5 <3 <1 <1 <5 10/4/2016 <1 <1 <5 <3 <1 <1 <5 5/2/2018 BDL BDL BDL BDL BDL BDL BDL 2/14/2019 BDL BDL BDL BDL BDL BDL BDL 8/7/2019 BDL BDL BDL BDL BDL BDL BDL Table 4 Page 13 of 13 Daily System Date Benzene Ethylbenzene Toluene Xylenes Naphthalene Total Discharge I.D.ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 ug/m3 Kg/Day SVES 12-Jan-15 27000 7800 53000 22900 26000 136700 2.508 2-Mar-15 5100 6500 21000 21300 1300 55200 1.013 4-Jun-15 1400 6100 15000 22600 260 45360 0.832 16-Jul-15 1000 3700 6800 13000 83 24583 0.451 17-Sep-15 1320 2720 7920 18590 0 30550 0.561 17-Nov-15 290 2900 3120 12610 0 18920 0.347 3-Feb-16 0 1710 1080 9950 0 12740 0.234 15-Apr-16 0 262 141 2510 0 2913 0.053 9-Jun-16 1.85 264 65.9 2750 0 3082 0.057 13-Sep-16 21.7 50.3 379 601 0 1052 0.019 7-Nov-16 0.0 24.9 193 471 0 689 0.013 10-Jan-17 163 123 868 1800 0 2954 0.054 15-Mar-17 0 3.35 6.57 79.5 0 89 0.002 15-May-17 0 0 2.67 58.1 0 61 0.001 20-Oct-17 2.19 0 5.97 19.23 0 27.39 0.001 21-Feb-18 49.3 4.82 56.6 17.09 0 128 0.002 11-Jun-18 0 0 4.35 0 0 4.35 0.000 14-Feb-19 0 0 1.64 0 0 1.64 0.000 7-Aug-19 0 0.953 2.03 0 0 2.98 0.000 1-Apr-20 2.03 0 3.30 0 0 5.33 0.000 15-Sep-21 1.02 0 4.07 0 0 5.09 0.000 15-Mar-22 0.993 0.871 29.0 4 0 34.89 0.001 19-Dec-22 0 0 0 0 0 0.00 0.000 31-Jan-23 0 0 4.8 0 0 4.82 0.000 Avg. Flow =450 cfm 12.74 m /min. Estimated Total Discharge =304.74 Kg Notes: Home Concrete and Supply, LLC 11575 Graham Road Mt. Ulla, NC 28125 Chronologic Listing of SVES Emissions Table 5 Page 1 of 1 Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 Figures Figure 1: Topographic Map – 2019 USGS Figure 2: Vicinity Map with Potable Well Locations Figure 3: Site Map with Shallow Monitoring Well Locations Figure 4: Site Map with Deep Monitoring Well Locations Figure 5: Site Map with Soil Vapor Extraction System Figure 6: Site Map with Passive Soil Venting System FIGURE NO.:1HOME CONCRETE AND SUPPLY, LLC - 11575 GRAHAM ROAD - 2019 USGS CLEVELAND, NC QUADSCALE: 1" = 2000' SITE WH WH WH WELL WELL WH WELL WH WELL WH WH WH WH WH WELL WELL WELL WH WH WH GRA H A M R O A D HA L L R O A D HIGHW A Y 8 0 1 FORMER BULKTERMINAL HAGGETT ENGINEERING ASSOCIATES, INC. 5307 SOUTH COLLEGE ROAD, SUITE 2B WILMINGTON, NORTH CAROLINA 28412 PHONE: (910) 397-0808 LICENSE NO.: C-1111 5002501250 GRAPHIC SCALE 1 inch = 250 feet LEGEND PROPERTY BOUNDARY 2501000' RADIUS ROWAN COUNTY 2022 DIGITAL AERIAL PHOTOGRAPHY AND 2016 PARCELS SEPTEMBER 28, 2023 AS SHOWN 13-1011 13101102 FIGURE NO.: JOB: FILE: DATE: SCALE: 2 POTABLE WATER WELL LOCATIONS VICINITY MAP WITH MOUNT ULLA, NORTH CAROLINA 28125 11575 GRAHAM ROAD - HOME CONCRETE AND SUPPLY, LLC REFERENCES: D. HAGGETT DFT CHECK: ENG CHECK: APPROVAL: DRAWN: SFH DNH GR A H A M R O A D ROWAN COUNTY 2022 DIGITAL AERIAL PHOTOGRAPHY AND 2016 PARCELS SEPTEMBER 28, 2023 AS SHOWN 13-1011 13101103 FIGURE NO.: JOB: FILE: DATE: SCALE: 3 SHALLOW MONITORING WELL LOCATIONS SITE MAP WITH MOUNT ULLA, NORTH CAROLINA 28125 11575 GRAHAM ROAD - HOME CONCRETE AND SUPPLY, LLCHAGGETT ENGINEERING ASSOCIATES, INC. 5307 SOUTH COLLEGE ROAD, SUITE 2B WILMINGTON, NORTH CAROLINA 28412 PHONE: (910) 397-0808 REFERENCES: D. HAGGETT LICENSE NO.: C-1111 14070350 GRAPHIC SCALE 1 inch = 70 feet DFT CHECK: ENG CHECK: APPROVAL: DRAWN: SFH DNH LEGEND PROPERTY BOUNDARY 70 MONITORING WELL FORMER BULKTERMINAL MW 1 BENZENE XYLENES MTBE DIPE (Groundwater results are in ug/L) NAPTHALENE BENZENE ETHYLBENZENE TOLUNE XYLENES MTBE DIPE (Groundwater results are in ug/L) NAPTHALENE MW 14 BDL BDL BDL BDL BDL BDL BDL MW 9 1.43 BDL BDL BDL BDL BDL BDL GR A H A M R O A D HAGGETT ENGINEERING ASSOCIATES, INC. 5307 SOUTH COLLEGE ROAD, SUITE 2B WILMINGTON, NORTH CAROLINA 28412 PHONE: (910) 397-0808 LICENSE NO.: C-1111 14070350 GRAPHIC SCALE 1 inch = 70 feet LEGEND PROPERTY BOUNDARY 70 MONITORING WELLMW 1 MW 3D MW 14D MW 15 FORMER BULKTERMINAL BDL BDL BDL BDL BDL BDL BDL 1.11 BDL BDL BDL BDL BDL BDL MW 16DD MW 7D 3.15 BDL BDL BDL BDL BDL BDL BENZENE XYLENES MTBE DIPE (Groundwater results are in ug/L) NAPTHALENE BENZENE ETHYLBENZENE TOLUENE XYLENES MTBE DIPE (Groundwater results are in ug/L) NAPTHALENE MW 10 ROWAN COUNTY 2022 DIGITAL AERIAL PHOTOGRAPHY AND 2016 PARCELS SEPTEMBER 28, 2023 AS SHOWN 13-1011 13101104 FIGURE NO.: JOB: FILE: DATE: SCALE: 4 DEEP MONITORING WELL LOCATIONS SITE MAP WITH MOUNT ULLA, NORTH CAROLINA 28125 11575 GRAHAM ROAD - HOME CONCRETE AND SUPPLY, LLC REFERENCES: D. HAGGETT DFT CHECK: ENG CHECK: APPROVAL: DRAWN: SFH DNH MW 9D BDL BDL BDL BDL BDL BDL BDL SPEARS GR A H A M R O A D HAGGETT ENGINEERING ASSOCIATES, INC. 5307 SOUTH COLLEGE ROAD, SUITE 2B WILMINGTON, NORTH CAROLINA 28412 PHONE: (910) 397-0808 LICENSE NO.: C-1111 6030150 GRAPHIC SCALE 1 inch = 30 feet LEGEND PROPERTY BOUNDARY 30 SVE WELLVE 1 VE 1 VE 2 VE 3 VE 4 VE 5 VE 6 VE 7 VE 8 VE 9 VE 10 VE 11 VE 12 VE 13 VE 14 VE 15 VE 16 VE 17 VE 18 VE 19 VE 20 VE 21 SVEBUILDING ROWAN COUNTY 2022 DIGITAL AERIAL PHOTOGRAPHY AND 2016 PARCELS SEPTEMBER 28, 2023 AS SHOWN 13-1011 13101105 FIGURE NO.: JOB: FILE: DATE: SCALE: 5 SOIL VAPOR EXTRACTION SYSTEM SITE MAP WITH MOUNT ULLA, NORTH CAROLINA 28125 11575 GRAHAM ROAD - HOME CONCRETE AND SUPPLY, LLC REFERENCES: D. HAGGETT DFT CHECK: ENG CHECK: APPROVAL: DRAWN: SFH DNH Valve Open 100% ValveClosed Valve Open 100% GR A H A M R O A D HAGGETT ENGINEERING ASSOCIATES, INC. 5307 SOUTH COLLEGE ROAD, SUITE 2B WILMINGTON, NORTH CAROLINA 28412 PHONE: (910) 397-0808 LICENSE NO.: C-1111 6030150 GRAPHIC SCALE 1 inch = 30 feet LEGEND PROPERTY BOUNDARY 30 AIR INLET WELLAI 1 AI 1 AI 2 AI 3 AI 4 AI 5 AI 6 AI 7 FRESH AIRINLET NEAR SVE BUILDING ROWAN COUNTY 2022 DIGITAL AERIAL PHOTOGRAPHY AND 2016 PARCELS SEPTEMBER 28, 2023 AS SHOWN 13-1011 13101106 FIGURE NO.: JOB: FILE: DATE: SCALE: 6 PASSIVE SOIL VENTING SYSTEM SITE MAP WITH MOUNT ULLA, NORTH CAROLINA 28125 11575 GRAHAM ROAD - HOME CONCRETE AND SUPPLY, LLC REFERENCES: D. HAGGETT DFT CHECK: ENG CHECK: APPROVAL: DRAWN: SFH DNH Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 Appendices Appendix A: Laboratory Analytical Results with COC’s Home Concrete and Supply, LLC Monitoring Report HEA Project No. 13-1011 September 28, 2023 Appendix “A” Laboratory Analytical Results with COC’s ANALYTICAL REPORT July 26, 2023 HS and E, Inc. Sample Delivery Group:L1636973 Samples Received:07/19/2023 Project Number: Description:Home Concrete and Supply, LLC Report To:Mr. Mel Howell 6513 Weddington Road Concord, NC 28027 Entire Report Reviewed By: July 26, 2023 [Preliminary Report] Heather J Wagner Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 1 of 34 July 26, 2023 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 1 of 34 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 MW 3D L1636973-01 6 MW 7D L1636973-02 8 MW 9 L1636973-03 10 MW 9D L1636973-04 12 MW 14 L1636973-05 14 MW 14D L1636973-06 16 WRHG WELL L1636973-07 18 RE PRUITT WELL L1636973-08 20 FBN DEV WELL L1636973-09 22 Qc: Quality Control Summary 24 Volatile Organic Compounds (GC/MS) by Method 8260D 24 Gl: Glossary of Terms 32 Al: Accreditations & Locations 33 Sc: Sample Chain of Custody 34 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 2 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 2 of 34 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW 3D L1636973-01 GW CH/ST 07/18/23 08:00 07/19/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260D WG2098962 1 07/21/23 05:03 07/21/23 05:03 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW 7D L1636973-02 GW CH/ST 07/18/23 08:36 07/19/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260D WG2101360 1 07/25/23 22:19 07/25/23 22:19 ACG Mt. Juliet, TN Collected by Collected date/time Received date/time MW 9 L1636973-03 GW CH/ST 07/18/23 09:00 07/19/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260D WG2098962 1 07/21/23 05:26 07/21/23 05:26 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW 9D L1636973-04 GW CH/ST 07/18/23 09:35 07/19/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260D WG2098962 1 07/21/23 05:50 07/21/23 05:50 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW 14 L1636973-05 GW CH/ST 07/18/23 10:05 07/19/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260D WG2098962 1 07/21/23 06:13 07/21/23 06:13 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW 14D L1636973-06 GW CH/ST 07/18/23 11:30 07/19/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260D WG2098962 1 07/21/23 06:36 07/21/23 06:36 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time WRHG WELL L1636973-07 GW CH/ST 07/18/23 12:00 07/19/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260D WG2098962 1 07/21/23 07:00 07/21/23 07:00 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time RE PRUITT WELL L1636973-08 GW CH/ST 07/18/23 12:30 07/19/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260D WG2098962 1 07/21/23 07:23 07/21/23 07:23 JAH Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 3 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 3 of 34 SAMPLE SUMMARY Collected by Collected date/time Received date/time FBN DEV WELL L1636973-09 GW CH/ST 07/18/23 13:00 07/19/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260D WG2098962 1 07/21/23 07:47 07/21/23 07:47 JAH Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 4 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 4 of 34 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Heather J Wagner Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 5 of 34 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 5 of 34 SAMPLE RESULTS - 01 L1636973 MW 3D Collected date/time: 07/18/23 08:00 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 07/21/2023 05:03 WG2098962 Acrolein ND 0.0500 1 07/21/2023 05:03 WG2098962 Acrylonitrile ND 0.0100 1 07/21/2023 05:03 WG2098962 Benzene 0.00111 0.00100 1 07/21/2023 05:03 WG2098962 Bromobenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 Bromodichloromethane ND 0.00100 1 07/21/2023 05:03 WG2098962 Bromoform ND 0.00100 1 07/21/2023 05:03 WG2098962 Bromomethane ND C3 0.00500 1 07/21/2023 05:03 WG2098962 n-Butylbenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 sec-Butylbenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 tert-Butylbenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 Carbon tetrachloride ND 0.00100 1 07/21/2023 05:03 WG2098962 Chlorobenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 Chlorodibromomethane ND 0.00100 1 07/21/2023 05:03 WG2098962 Chloroethane ND 0.00500 1 07/21/2023 05:03 WG2098962 Chloroform ND 0.00500 1 07/21/2023 05:03 WG2098962 Chloromethane ND 0.00250 1 07/21/2023 05:03 WG2098962 2-Chlorotoluene ND 0.00100 1 07/21/2023 05:03 WG2098962 4-Chlorotoluene ND 0.00100 1 07/21/2023 05:03 WG2098962 1,2-Dibromo-3-Chloropropane ND 0.00500 1 07/21/2023 05:03 WG2098962 1,2-Dibromoethane ND 0.00100 1 07/21/2023 05:03 WG2098962 Dibromomethane ND 0.00100 1 07/21/2023 05:03 WG2098962 1,2-Dichlorobenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 1,3-Dichlorobenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 1,4-Dichlorobenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 Dichlorodifluoromethane ND 0.00500 1 07/21/2023 05:03 WG2098962 1,1-Dichloroethane ND 0.00100 1 07/21/2023 05:03 WG2098962 1,2-Dichloroethane ND 0.00100 1 07/21/2023 05:03 WG2098962 1,1-Dichloroethene ND 0.00100 1 07/21/2023 05:03 WG2098962 cis-1,2-Dichloroethene ND 0.00100 1 07/21/2023 05:03 WG2098962 trans-1,2-Dichloroethene ND 0.00100 1 07/21/2023 05:03 WG2098962 1,2-Dichloropropane ND 0.00100 1 07/21/2023 05:03 WG2098962 1,1-Dichloropropene ND 0.00100 1 07/21/2023 05:03 WG2098962 1,3-Dichloropropane ND 0.00100 1 07/21/2023 05:03 WG2098962 cis-1,3-Dichloropropene ND 0.00100 1 07/21/2023 05:03 WG2098962 trans-1,3-Dichloropropene ND 0.00100 1 07/21/2023 05:03 WG2098962 2,2-Dichloropropane ND 0.00100 1 07/21/2023 05:03 WG2098962 Di-isopropyl ether ND 0.00100 1 07/21/2023 05:03 WG2098962 Ethylbenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 Hexachloro-1,3-butadiene ND 0.00100 1 07/21/2023 05:03 WG2098962 Isopropylbenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 p-Isopropyltoluene ND 0.00100 1 07/21/2023 05:03 WG2098962 2-Butanone (MEK)ND 0.0100 1 07/21/2023 05:03 WG2098962 Methylene Chloride ND 0.00500 1 07/21/2023 05:03 WG2098962 4-Methyl-2-pentanone (MIBK) ND 0.0100 1 07/21/2023 05:03 WG2098962 Methyl tert-butyl ether ND 0.00100 1 07/21/2023 05:03 WG2098962 Naphthalene ND C3 0.00500 1 07/21/2023 05:03 WG2098962 n-Propylbenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 Styrene ND 0.00100 1 07/21/2023 05:03 WG2098962 1,1,1,2-Tetrachloroethane ND 0.00100 1 07/21/2023 05:03 WG2098962 1,1,2,2-Tetrachloroethane ND 0.00100 1 07/21/2023 05:03 WG2098962 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 07/21/2023 05:03 WG2098962 Tetrachloroethene ND 0.00100 1 07/21/2023 05:03 WG2098962 Toluene ND 0.00100 1 07/21/2023 05:03 WG2098962 1,2,3-Trichlorobenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 1,2,4-Trichlorobenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 6 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 6 of 34 SAMPLE RESULTS - 01 L1636973 MW 3D Collected date/time: 07/18/23 08:00 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,1,1-Trichloroethane ND 0.00100 1 07/21/2023 05:03 WG2098962 1,1,2-Trichloroethane ND 0.00100 1 07/21/2023 05:03 WG2098962 Trichloroethene ND 0.00100 1 07/21/2023 05:03 WG2098962 Trichlorofluoromethane ND 0.00500 1 07/21/2023 05:03 WG2098962 1,2,3-Trichloropropane ND 0.00250 1 07/21/2023 05:03 WG2098962 1,2,4-Trimethylbenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 1,2,3-Trimethylbenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 1,3,5-Trimethylbenzene ND 0.00100 1 07/21/2023 05:03 WG2098962 Vinyl chloride ND 0.00100 1 07/21/2023 05:03 WG2098962 Xylenes, Total ND 0.00300 1 07/21/2023 05:03 WG2098962 (S) Toluene-d8 113 80.0-120 07/21/2023 05:03 WG2098962 (S) 4-Bromofluorobenzene 113 77.0-126 07/21/2023 05:03 WG2098962 (S) 1,2-Dichloroethane-d4 104 70.0-130 07/21/2023 05:03 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 7 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 7 of 34 SAMPLE RESULTS - 02 L1636973 MW 7D Collected date/time: 07/18/23 08:36 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 07/25/2023 22:19 WG2101360 Acrolein ND 0.0500 1 07/25/2023 22:19 WG2101360 Acrylonitrile ND 0.0100 1 07/25/2023 22:19 WG2101360 Benzene 0.00315 0.00100 1 07/25/2023 22:19 WG2101360 Bromobenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 Bromodichloromethane ND 0.00100 1 07/25/2023 22:19 WG2101360 Bromoform ND 0.00100 1 07/25/2023 22:19 WG2101360 Bromomethane ND 0.00500 1 07/25/2023 22:19 WG2101360 n-Butylbenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 sec-Butylbenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 tert-Butylbenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 Carbon tetrachloride ND 0.00100 1 07/25/2023 22:19 WG2101360 Chlorobenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 Chlorodibromomethane ND 0.00100 1 07/25/2023 22:19 WG2101360 Chloroethane ND 0.00500 1 07/25/2023 22:19 WG2101360 Chloroform ND 0.00500 1 07/25/2023 22:19 WG2101360 Chloromethane ND 0.00250 1 07/25/2023 22:19 WG2101360 2-Chlorotoluene ND 0.00100 1 07/25/2023 22:19 WG2101360 4-Chlorotoluene ND 0.00100 1 07/25/2023 22:19 WG2101360 1,2-Dibromo-3-Chloropropane ND 0.00500 1 07/25/2023 22:19 WG2101360 1,2-Dibromoethane ND 0.00100 1 07/25/2023 22:19 WG2101360 Dibromomethane ND 0.00100 1 07/25/2023 22:19 WG2101360 1,2-Dichlorobenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 1,3-Dichlorobenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 1,4-Dichlorobenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 Dichlorodifluoromethane ND 0.00500 1 07/25/2023 22:19 WG2101360 1,1-Dichloroethane ND 0.00100 1 07/25/2023 22:19 WG2101360 1,2-Dichloroethane ND 0.00100 1 07/25/2023 22:19 WG2101360 1,1-Dichloroethene ND 0.00100 1 07/25/2023 22:19 WG2101360 cis-1,2-Dichloroethene ND 0.00100 1 07/25/2023 22:19 WG2101360 trans-1,2-Dichloroethene ND 0.00100 1 07/25/2023 22:19 WG2101360 1,2-Dichloropropane ND 0.00100 1 07/25/2023 22:19 WG2101360 1,1-Dichloropropene ND 0.00100 1 07/25/2023 22:19 WG2101360 1,3-Dichloropropane ND 0.00100 1 07/25/2023 22:19 WG2101360 cis-1,3-Dichloropropene ND 0.00100 1 07/25/2023 22:19 WG2101360 trans-1,3-Dichloropropene ND 0.00100 1 07/25/2023 22:19 WG2101360 2,2-Dichloropropane ND 0.00100 1 07/25/2023 22:19 WG2101360 Di-isopropyl ether ND 0.00100 1 07/25/2023 22:19 WG2101360 Ethylbenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 Hexachloro-1,3-butadiene ND 0.00100 1 07/25/2023 22:19 WG2101360 Isopropylbenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 p-Isopropyltoluene ND 0.00100 1 07/25/2023 22:19 WG2101360 2-Butanone (MEK)ND 0.0100 1 07/25/2023 22:19 WG2101360 Methylene Chloride ND 0.00500 1 07/25/2023 22:19 WG2101360 4-Methyl-2-pentanone (MIBK) ND 0.0100 1 07/25/2023 22:19 WG2101360 Methyl tert-butyl ether ND 0.00100 1 07/25/2023 22:19 WG2101360 Naphthalene ND 0.00500 1 07/25/2023 22:19 WG2101360 n-Propylbenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 Styrene ND 0.00100 1 07/25/2023 22:19 WG2101360 1,1,1,2-Tetrachloroethane ND 0.00100 1 07/25/2023 22:19 WG2101360 1,1,2,2-Tetrachloroethane ND 0.00100 1 07/25/2023 22:19 WG2101360 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 07/25/2023 22:19 WG2101360 Tetrachloroethene ND 0.00100 1 07/25/2023 22:19 WG2101360 Toluene ND 0.00100 1 07/25/2023 22:19 WG2101360 1,2,3-Trichlorobenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 1,2,4-Trichlorobenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 8 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 8 of 34 SAMPLE RESULTS - 02 L1636973 MW 7D Collected date/time: 07/18/23 08:36 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,1,1-Trichloroethane ND 0.00100 1 07/25/2023 22:19 WG2101360 1,1,2-Trichloroethane ND 0.00100 1 07/25/2023 22:19 WG2101360 Trichloroethene ND 0.00100 1 07/25/2023 22:19 WG2101360 Trichlorofluoromethane ND 0.00500 1 07/25/2023 22:19 WG2101360 1,2,3-Trichloropropane ND 0.00250 1 07/25/2023 22:19 WG2101360 1,2,4-Trimethylbenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 1,2,3-Trimethylbenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 1,3,5-Trimethylbenzene ND 0.00100 1 07/25/2023 22:19 WG2101360 Vinyl chloride ND 0.00100 1 07/25/2023 22:19 WG2101360 Xylenes, Total ND 0.00300 1 07/25/2023 22:19 WG2101360 (S) Toluene-d8 103 80.0-120 07/25/2023 22:19 WG2101360 (S) 4-Bromofluorobenzene 98.3 77.0-126 07/25/2023 22:19 WG2101360 (S) 1,2-Dichloroethane-d4 113 70.0-130 07/25/2023 22:19 WG2101360 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 9 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 9 of 34 SAMPLE RESULTS - 03 L1636973 MW 9 Collected date/time: 07/18/23 09:00 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 07/21/2023 05:26 WG2098962 Acrolein ND 0.0500 1 07/21/2023 05:26 WG2098962 Acrylonitrile ND 0.0100 1 07/21/2023 05:26 WG2098962 Benzene ND 0.00100 1 07/21/2023 05:26 WG2098962 Bromobenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 Bromodichloromethane ND 0.00100 1 07/21/2023 05:26 WG2098962 Bromoform ND 0.00100 1 07/21/2023 05:26 WG2098962 Bromomethane ND C3 0.00500 1 07/21/2023 05:26 WG2098962 n-Butylbenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 sec-Butylbenzene 0.00143 0.00100 1 07/21/2023 05:26 WG2098962 tert-Butylbenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 Carbon tetrachloride ND 0.00100 1 07/21/2023 05:26 WG2098962 Chlorobenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 Chlorodibromomethane ND 0.00100 1 07/21/2023 05:26 WG2098962 Chloroethane ND 0.00500 1 07/21/2023 05:26 WG2098962 Chloroform ND 0.00500 1 07/21/2023 05:26 WG2098962 Chloromethane ND 0.00250 1 07/21/2023 05:26 WG2098962 2-Chlorotoluene ND 0.00100 1 07/21/2023 05:26 WG2098962 4-Chlorotoluene ND 0.00100 1 07/21/2023 05:26 WG2098962 1,2-Dibromo-3-Chloropropane ND 0.00500 1 07/21/2023 05:26 WG2098962 1,2-Dibromoethane ND 0.00100 1 07/21/2023 05:26 WG2098962 Dibromomethane ND 0.00100 1 07/21/2023 05:26 WG2098962 1,2-Dichlorobenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 1,3-Dichlorobenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 1,4-Dichlorobenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 Dichlorodifluoromethane ND 0.00500 1 07/21/2023 05:26 WG2098962 1,1-Dichloroethane ND 0.00100 1 07/21/2023 05:26 WG2098962 1,2-Dichloroethane ND 0.00100 1 07/21/2023 05:26 WG2098962 1,1-Dichloroethene ND 0.00100 1 07/21/2023 05:26 WG2098962 cis-1,2-Dichloroethene ND 0.00100 1 07/21/2023 05:26 WG2098962 trans-1,2-Dichloroethene ND 0.00100 1 07/21/2023 05:26 WG2098962 1,2-Dichloropropane ND 0.00100 1 07/21/2023 05:26 WG2098962 1,1-Dichloropropene ND 0.00100 1 07/21/2023 05:26 WG2098962 1,3-Dichloropropane ND 0.00100 1 07/21/2023 05:26 WG2098962 cis-1,3-Dichloropropene ND 0.00100 1 07/21/2023 05:26 WG2098962 trans-1,3-Dichloropropene ND 0.00100 1 07/21/2023 05:26 WG2098962 2,2-Dichloropropane ND 0.00100 1 07/21/2023 05:26 WG2098962 Di-isopropyl ether ND 0.00100 1 07/21/2023 05:26 WG2098962 Ethylbenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 Hexachloro-1,3-butadiene ND 0.00100 1 07/21/2023 05:26 WG2098962 Isopropylbenzene 0.00323 0.00100 1 07/21/2023 05:26 WG2098962 p-Isopropyltoluene ND 0.00100 1 07/21/2023 05:26 WG2098962 2-Butanone (MEK)ND 0.0100 1 07/21/2023 05:26 WG2098962 Methylene Chloride ND 0.00500 1 07/21/2023 05:26 WG2098962 4-Methyl-2-pentanone (MIBK) ND 0.0100 1 07/21/2023 05:26 WG2098962 Methyl tert-butyl ether ND 0.00100 1 07/21/2023 05:26 WG2098962 Naphthalene ND C3 0.00500 1 07/21/2023 05:26 WG2098962 n-Propylbenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 Styrene ND 0.00100 1 07/21/2023 05:26 WG2098962 1,1,1,2-Tetrachloroethane ND 0.00100 1 07/21/2023 05:26 WG2098962 1,1,2,2-Tetrachloroethane ND 0.00100 1 07/21/2023 05:26 WG2098962 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 07/21/2023 05:26 WG2098962 Tetrachloroethene ND 0.00100 1 07/21/2023 05:26 WG2098962 Toluene ND 0.00100 1 07/21/2023 05:26 WG2098962 1,2,3-Trichlorobenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 1,2,4-Trichlorobenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 10 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 10 of 34 SAMPLE RESULTS - 03 L1636973 MW 9 Collected date/time: 07/18/23 09:00 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,1,1-Trichloroethane ND 0.00100 1 07/21/2023 05:26 WG2098962 1,1,2-Trichloroethane ND 0.00100 1 07/21/2023 05:26 WG2098962 Trichloroethene ND 0.00100 1 07/21/2023 05:26 WG2098962 Trichlorofluoromethane ND 0.00500 1 07/21/2023 05:26 WG2098962 1,2,3-Trichloropropane ND 0.00250 1 07/21/2023 05:26 WG2098962 1,2,4-Trimethylbenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 1,2,3-Trimethylbenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 1,3,5-Trimethylbenzene ND 0.00100 1 07/21/2023 05:26 WG2098962 Vinyl chloride ND 0.00100 1 07/21/2023 05:26 WG2098962 Xylenes, Total ND 0.00300 1 07/21/2023 05:26 WG2098962 (S) Toluene-d8 112 80.0-120 07/21/2023 05:26 WG2098962 (S) 4-Bromofluorobenzene 111 77.0-126 07/21/2023 05:26 WG2098962 (S) 1,2-Dichloroethane-d4 101 70.0-130 07/21/2023 05:26 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 11 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 11 of 34 SAMPLE RESULTS - 04 L1636973 MW 9D Collected date/time: 07/18/23 09:35 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 07/21/2023 05:50 WG2098962 Acrolein ND 0.0500 1 07/21/2023 05:50 WG2098962 Acrylonitrile ND 0.0100 1 07/21/2023 05:50 WG2098962 Benzene ND 0.00100 1 07/21/2023 05:50 WG2098962 Bromobenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 Bromodichloromethane ND 0.00100 1 07/21/2023 05:50 WG2098962 Bromoform ND 0.00100 1 07/21/2023 05:50 WG2098962 Bromomethane ND C3 0.00500 1 07/21/2023 05:50 WG2098962 n-Butylbenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 sec-Butylbenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 tert-Butylbenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 Carbon tetrachloride ND 0.00100 1 07/21/2023 05:50 WG2098962 Chlorobenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 Chlorodibromomethane ND 0.00100 1 07/21/2023 05:50 WG2098962 Chloroethane ND 0.00500 1 07/21/2023 05:50 WG2098962 Chloroform ND 0.00500 1 07/21/2023 05:50 WG2098962 Chloromethane ND 0.00250 1 07/21/2023 05:50 WG2098962 2-Chlorotoluene ND 0.00100 1 07/21/2023 05:50 WG2098962 4-Chlorotoluene ND 0.00100 1 07/21/2023 05:50 WG2098962 1,2-Dibromo-3-Chloropropane ND 0.00500 1 07/21/2023 05:50 WG2098962 1,2-Dibromoethane ND 0.00100 1 07/21/2023 05:50 WG2098962 Dibromomethane ND 0.00100 1 07/21/2023 05:50 WG2098962 1,2-Dichlorobenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 1,3-Dichlorobenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 1,4-Dichlorobenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 Dichlorodifluoromethane ND 0.00500 1 07/21/2023 05:50 WG2098962 1,1-Dichloroethane ND 0.00100 1 07/21/2023 05:50 WG2098962 1,2-Dichloroethane ND 0.00100 1 07/21/2023 05:50 WG2098962 1,1-Dichloroethene ND 0.00100 1 07/21/2023 05:50 WG2098962 cis-1,2-Dichloroethene ND 0.00100 1 07/21/2023 05:50 WG2098962 trans-1,2-Dichloroethene ND 0.00100 1 07/21/2023 05:50 WG2098962 1,2-Dichloropropane ND 0.00100 1 07/21/2023 05:50 WG2098962 1,1-Dichloropropene ND 0.00100 1 07/21/2023 05:50 WG2098962 1,3-Dichloropropane ND 0.00100 1 07/21/2023 05:50 WG2098962 cis-1,3-Dichloropropene ND 0.00100 1 07/21/2023 05:50 WG2098962 trans-1,3-Dichloropropene ND 0.00100 1 07/21/2023 05:50 WG2098962 2,2-Dichloropropane ND 0.00100 1 07/21/2023 05:50 WG2098962 Di-isopropyl ether ND 0.00100 1 07/21/2023 05:50 WG2098962 Ethylbenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 Hexachloro-1,3-butadiene ND 0.00100 1 07/21/2023 05:50 WG2098962 Isopropylbenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 p-Isopropyltoluene ND 0.00100 1 07/21/2023 05:50 WG2098962 2-Butanone (MEK)ND 0.0100 1 07/21/2023 05:50 WG2098962 Methylene Chloride ND 0.00500 1 07/21/2023 05:50 WG2098962 4-Methyl-2-pentanone (MIBK) ND 0.0100 1 07/21/2023 05:50 WG2098962 Methyl tert-butyl ether ND 0.00100 1 07/21/2023 05:50 WG2098962 Naphthalene ND C3 0.00500 1 07/21/2023 05:50 WG2098962 n-Propylbenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 Styrene ND 0.00100 1 07/21/2023 05:50 WG2098962 1,1,1,2-Tetrachloroethane ND 0.00100 1 07/21/2023 05:50 WG2098962 1,1,2,2-Tetrachloroethane ND 0.00100 1 07/21/2023 05:50 WG2098962 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 07/21/2023 05:50 WG2098962 Tetrachloroethene ND 0.00100 1 07/21/2023 05:50 WG2098962 Toluene ND 0.00100 1 07/21/2023 05:50 WG2098962 1,2,3-Trichlorobenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 1,2,4-Trichlorobenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 12 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 12 of 34 SAMPLE RESULTS - 04 L1636973 MW 9D Collected date/time: 07/18/23 09:35 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,1,1-Trichloroethane ND 0.00100 1 07/21/2023 05:50 WG2098962 1,1,2-Trichloroethane ND 0.00100 1 07/21/2023 05:50 WG2098962 Trichloroethene ND 0.00100 1 07/21/2023 05:50 WG2098962 Trichlorofluoromethane ND 0.00500 1 07/21/2023 05:50 WG2098962 1,2,3-Trichloropropane ND 0.00250 1 07/21/2023 05:50 WG2098962 1,2,4-Trimethylbenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 1,2,3-Trimethylbenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 1,3,5-Trimethylbenzene ND 0.00100 1 07/21/2023 05:50 WG2098962 Vinyl chloride ND 0.00100 1 07/21/2023 05:50 WG2098962 Xylenes, Total ND 0.00300 1 07/21/2023 05:50 WG2098962 (S) Toluene-d8 114 80.0-120 07/21/2023 05:50 WG2098962 (S) 4-Bromofluorobenzene 112 77.0-126 07/21/2023 05:50 WG2098962 (S) 1,2-Dichloroethane-d4 103 70.0-130 07/21/2023 05:50 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 13 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 13 of 34 SAMPLE RESULTS - 05 L1636973 MW 14 Collected date/time: 07/18/23 10:05 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 07/21/2023 06:13 WG2098962 Acrolein ND 0.0500 1 07/21/2023 06:13 WG2098962 Acrylonitrile ND 0.0100 1 07/21/2023 06:13 WG2098962 Benzene ND 0.00100 1 07/21/2023 06:13 WG2098962 Bromobenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 Bromodichloromethane ND 0.00100 1 07/21/2023 06:13 WG2098962 Bromoform ND 0.00100 1 07/21/2023 06:13 WG2098962 Bromomethane ND C3 0.00500 1 07/21/2023 06:13 WG2098962 n-Butylbenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 sec-Butylbenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 tert-Butylbenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 Carbon tetrachloride ND 0.00100 1 07/21/2023 06:13 WG2098962 Chlorobenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 Chlorodibromomethane ND 0.00100 1 07/21/2023 06:13 WG2098962 Chloroethane ND 0.00500 1 07/21/2023 06:13 WG2098962 Chloroform ND 0.00500 1 07/21/2023 06:13 WG2098962 Chloromethane ND 0.00250 1 07/21/2023 06:13 WG2098962 2-Chlorotoluene ND 0.00100 1 07/21/2023 06:13 WG2098962 4-Chlorotoluene ND 0.00100 1 07/21/2023 06:13 WG2098962 1,2-Dibromo-3-Chloropropane ND 0.00500 1 07/21/2023 06:13 WG2098962 1,2-Dibromoethane ND 0.00100 1 07/21/2023 06:13 WG2098962 Dibromomethane ND 0.00100 1 07/21/2023 06:13 WG2098962 1,2-Dichlorobenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 1,3-Dichlorobenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 1,4-Dichlorobenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 Dichlorodifluoromethane ND 0.00500 1 07/21/2023 06:13 WG2098962 1,1-Dichloroethane ND 0.00100 1 07/21/2023 06:13 WG2098962 1,2-Dichloroethane ND 0.00100 1 07/21/2023 06:13 WG2098962 1,1-Dichloroethene ND 0.00100 1 07/21/2023 06:13 WG2098962 cis-1,2-Dichloroethene ND 0.00100 1 07/21/2023 06:13 WG2098962 trans-1,2-Dichloroethene ND 0.00100 1 07/21/2023 06:13 WG2098962 1,2-Dichloropropane ND 0.00100 1 07/21/2023 06:13 WG2098962 1,1-Dichloropropene ND 0.00100 1 07/21/2023 06:13 WG2098962 1,3-Dichloropropane ND 0.00100 1 07/21/2023 06:13 WG2098962 cis-1,3-Dichloropropene ND 0.00100 1 07/21/2023 06:13 WG2098962 trans-1,3-Dichloropropene ND 0.00100 1 07/21/2023 06:13 WG2098962 2,2-Dichloropropane ND 0.00100 1 07/21/2023 06:13 WG2098962 Di-isopropyl ether ND 0.00100 1 07/21/2023 06:13 WG2098962 Ethylbenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 Hexachloro-1,3-butadiene ND 0.00100 1 07/21/2023 06:13 WG2098962 Isopropylbenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 p-Isopropyltoluene ND 0.00100 1 07/21/2023 06:13 WG2098962 2-Butanone (MEK)ND 0.0100 1 07/21/2023 06:13 WG2098962 Methylene Chloride ND 0.00500 1 07/21/2023 06:13 WG2098962 4-Methyl-2-pentanone (MIBK) ND 0.0100 1 07/21/2023 06:13 WG2098962 Methyl tert-butyl ether ND 0.00100 1 07/21/2023 06:13 WG2098962 Naphthalene ND C3 0.00500 1 07/21/2023 06:13 WG2098962 n-Propylbenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 Styrene ND 0.00100 1 07/21/2023 06:13 WG2098962 1,1,1,2-Tetrachloroethane ND 0.00100 1 07/21/2023 06:13 WG2098962 1,1,2,2-Tetrachloroethane ND 0.00100 1 07/21/2023 06:13 WG2098962 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 07/21/2023 06:13 WG2098962 Tetrachloroethene ND 0.00100 1 07/21/2023 06:13 WG2098962 Toluene ND 0.00100 1 07/21/2023 06:13 WG2098962 1,2,3-Trichlorobenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 1,2,4-Trichlorobenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 14 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 14 of 34 SAMPLE RESULTS - 05 L1636973 MW 14 Collected date/time: 07/18/23 10:05 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,1,1-Trichloroethane ND 0.00100 1 07/21/2023 06:13 WG2098962 1,1,2-Trichloroethane ND 0.00100 1 07/21/2023 06:13 WG2098962 Trichloroethene ND 0.00100 1 07/21/2023 06:13 WG2098962 Trichlorofluoromethane ND 0.00500 1 07/21/2023 06:13 WG2098962 1,2,3-Trichloropropane ND 0.00250 1 07/21/2023 06:13 WG2098962 1,2,4-Trimethylbenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 1,2,3-Trimethylbenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 1,3,5-Trimethylbenzene ND 0.00100 1 07/21/2023 06:13 WG2098962 Vinyl chloride ND 0.00100 1 07/21/2023 06:13 WG2098962 Xylenes, Total ND 0.00300 1 07/21/2023 06:13 WG2098962 (S) Toluene-d8 112 80.0-120 07/21/2023 06:13 WG2098962 (S) 4-Bromofluorobenzene 109 77.0-126 07/21/2023 06:13 WG2098962 (S) 1,2-Dichloroethane-d4 105 70.0-130 07/21/2023 06:13 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 15 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 15 of 34 SAMPLE RESULTS - 06 L1636973 MW 14D Collected date/time: 07/18/23 11:30 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 07/21/2023 06:36 WG2098962 Acrolein ND 0.0500 1 07/21/2023 06:36 WG2098962 Acrylonitrile ND 0.0100 1 07/21/2023 06:36 WG2098962 Benzene ND 0.00100 1 07/21/2023 06:36 WG2098962 Bromobenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 Bromodichloromethane ND 0.00100 1 07/21/2023 06:36 WG2098962 Bromoform ND 0.00100 1 07/21/2023 06:36 WG2098962 Bromomethane ND C3 0.00500 1 07/21/2023 06:36 WG2098962 n-Butylbenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 sec-Butylbenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 tert-Butylbenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 Carbon tetrachloride ND 0.00100 1 07/21/2023 06:36 WG2098962 Chlorobenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 Chlorodibromomethane ND 0.00100 1 07/21/2023 06:36 WG2098962 Chloroethane ND 0.00500 1 07/21/2023 06:36 WG2098962 Chloroform ND 0.00500 1 07/21/2023 06:36 WG2098962 Chloromethane ND 0.00250 1 07/21/2023 06:36 WG2098962 2-Chlorotoluene ND 0.00100 1 07/21/2023 06:36 WG2098962 4-Chlorotoluene ND 0.00100 1 07/21/2023 06:36 WG2098962 1,2-Dibromo-3-Chloropropane ND 0.00500 1 07/21/2023 06:36 WG2098962 1,2-Dibromoethane ND 0.00100 1 07/21/2023 06:36 WG2098962 Dibromomethane ND 0.00100 1 07/21/2023 06:36 WG2098962 1,2-Dichlorobenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 1,3-Dichlorobenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 1,4-Dichlorobenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 Dichlorodifluoromethane ND 0.00500 1 07/21/2023 06:36 WG2098962 1,1-Dichloroethane ND 0.00100 1 07/21/2023 06:36 WG2098962 1,2-Dichloroethane ND 0.00100 1 07/21/2023 06:36 WG2098962 1,1-Dichloroethene ND 0.00100 1 07/21/2023 06:36 WG2098962 cis-1,2-Dichloroethene ND 0.00100 1 07/21/2023 06:36 WG2098962 trans-1,2-Dichloroethene ND 0.00100 1 07/21/2023 06:36 WG2098962 1,2-Dichloropropane ND 0.00100 1 07/21/2023 06:36 WG2098962 1,1-Dichloropropene ND 0.00100 1 07/21/2023 06:36 WG2098962 1,3-Dichloropropane ND 0.00100 1 07/21/2023 06:36 WG2098962 cis-1,3-Dichloropropene ND 0.00100 1 07/21/2023 06:36 WG2098962 trans-1,3-Dichloropropene ND 0.00100 1 07/21/2023 06:36 WG2098962 2,2-Dichloropropane ND 0.00100 1 07/21/2023 06:36 WG2098962 Di-isopropyl ether ND 0.00100 1 07/21/2023 06:36 WG2098962 Ethylbenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 Hexachloro-1,3-butadiene ND 0.00100 1 07/21/2023 06:36 WG2098962 Isopropylbenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 p-Isopropyltoluene ND 0.00100 1 07/21/2023 06:36 WG2098962 2-Butanone (MEK)ND 0.0100 1 07/21/2023 06:36 WG2098962 Methylene Chloride ND 0.00500 1 07/21/2023 06:36 WG2098962 4-Methyl-2-pentanone (MIBK) ND 0.0100 1 07/21/2023 06:36 WG2098962 Methyl tert-butyl ether ND 0.00100 1 07/21/2023 06:36 WG2098962 Naphthalene ND C3 0.00500 1 07/21/2023 06:36 WG2098962 n-Propylbenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 Styrene ND 0.00100 1 07/21/2023 06:36 WG2098962 1,1,1,2-Tetrachloroethane ND 0.00100 1 07/21/2023 06:36 WG2098962 1,1,2,2-Tetrachloroethane ND 0.00100 1 07/21/2023 06:36 WG2098962 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 07/21/2023 06:36 WG2098962 Tetrachloroethene ND 0.00100 1 07/21/2023 06:36 WG2098962 Toluene ND 0.00100 1 07/21/2023 06:36 WG2098962 1,2,3-Trichlorobenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 1,2,4-Trichlorobenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 16 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 16 of 34 SAMPLE RESULTS - 06 L1636973 MW 14D Collected date/time: 07/18/23 11:30 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,1,1-Trichloroethane ND 0.00100 1 07/21/2023 06:36 WG2098962 1,1,2-Trichloroethane ND 0.00100 1 07/21/2023 06:36 WG2098962 Trichloroethene ND 0.00100 1 07/21/2023 06:36 WG2098962 Trichlorofluoromethane ND 0.00500 1 07/21/2023 06:36 WG2098962 1,2,3-Trichloropropane ND 0.00250 1 07/21/2023 06:36 WG2098962 1,2,4-Trimethylbenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 1,2,3-Trimethylbenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 1,3,5-Trimethylbenzene ND 0.00100 1 07/21/2023 06:36 WG2098962 Vinyl chloride ND 0.00100 1 07/21/2023 06:36 WG2098962 Xylenes, Total ND 0.00300 1 07/21/2023 06:36 WG2098962 (S) Toluene-d8 114 80.0-120 07/21/2023 06:36 WG2098962 (S) 4-Bromofluorobenzene 112 77.0-126 07/21/2023 06:36 WG2098962 (S) 1,2-Dichloroethane-d4 103 70.0-130 07/21/2023 06:36 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 17 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 17 of 34 SAMPLE RESULTS - 07 L1636973 WRHG WELL Collected date/time: 07/18/23 12:00 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 07/21/2023 07:00 WG2098962 Acrolein ND 0.0500 1 07/21/2023 07:00 WG2098962 Acrylonitrile ND 0.0100 1 07/21/2023 07:00 WG2098962 Benzene ND 0.00100 1 07/21/2023 07:00 WG2098962 Bromobenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 Bromodichloromethane ND 0.00100 1 07/21/2023 07:00 WG2098962 Bromoform ND 0.00100 1 07/21/2023 07:00 WG2098962 Bromomethane ND C3 0.00500 1 07/21/2023 07:00 WG2098962 n-Butylbenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 sec-Butylbenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 tert-Butylbenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 Carbon tetrachloride ND 0.00100 1 07/21/2023 07:00 WG2098962 Chlorobenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 Chlorodibromomethane ND 0.00100 1 07/21/2023 07:00 WG2098962 Chloroethane ND 0.00500 1 07/21/2023 07:00 WG2098962 Chloroform ND 0.00500 1 07/21/2023 07:00 WG2098962 Chloromethane ND 0.00250 1 07/21/2023 07:00 WG2098962 2-Chlorotoluene ND 0.00100 1 07/21/2023 07:00 WG2098962 4-Chlorotoluene ND 0.00100 1 07/21/2023 07:00 WG2098962 1,2-Dibromo-3-Chloropropane ND 0.00500 1 07/21/2023 07:00 WG2098962 1,2-Dibromoethane ND 0.00100 1 07/21/2023 07:00 WG2098962 Dibromomethane ND 0.00100 1 07/21/2023 07:00 WG2098962 1,2-Dichlorobenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 1,3-Dichlorobenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 1,4-Dichlorobenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 Dichlorodifluoromethane ND 0.00500 1 07/21/2023 07:00 WG2098962 1,1-Dichloroethane ND 0.00100 1 07/21/2023 07:00 WG2098962 1,2-Dichloroethane ND 0.00100 1 07/21/2023 07:00 WG2098962 1,1-Dichloroethene ND 0.00100 1 07/21/2023 07:00 WG2098962 cis-1,2-Dichloroethene ND 0.00100 1 07/21/2023 07:00 WG2098962 trans-1,2-Dichloroethene ND 0.00100 1 07/21/2023 07:00 WG2098962 1,2-Dichloropropane ND 0.00100 1 07/21/2023 07:00 WG2098962 1,1-Dichloropropene ND 0.00100 1 07/21/2023 07:00 WG2098962 1,3-Dichloropropane ND 0.00100 1 07/21/2023 07:00 WG2098962 cis-1,3-Dichloropropene ND 0.00100 1 07/21/2023 07:00 WG2098962 trans-1,3-Dichloropropene ND 0.00100 1 07/21/2023 07:00 WG2098962 2,2-Dichloropropane ND 0.00100 1 07/21/2023 07:00 WG2098962 Di-isopropyl ether ND 0.00100 1 07/21/2023 07:00 WG2098962 Ethylbenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 Hexachloro-1,3-butadiene ND 0.00100 1 07/21/2023 07:00 WG2098962 Isopropylbenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 p-Isopropyltoluene ND 0.00100 1 07/21/2023 07:00 WG2098962 2-Butanone (MEK)ND 0.0100 1 07/21/2023 07:00 WG2098962 Methylene Chloride ND 0.00500 1 07/21/2023 07:00 WG2098962 4-Methyl-2-pentanone (MIBK) ND 0.0100 1 07/21/2023 07:00 WG2098962 Methyl tert-butyl ether ND 0.00100 1 07/21/2023 07:00 WG2098962 Naphthalene ND C3 0.00500 1 07/21/2023 07:00 WG2098962 n-Propylbenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 Styrene ND 0.00100 1 07/21/2023 07:00 WG2098962 1,1,1,2-Tetrachloroethane ND 0.00100 1 07/21/2023 07:00 WG2098962 1,1,2,2-Tetrachloroethane ND 0.00100 1 07/21/2023 07:00 WG2098962 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 07/21/2023 07:00 WG2098962 Tetrachloroethene ND 0.00100 1 07/21/2023 07:00 WG2098962 Toluene ND 0.00100 1 07/21/2023 07:00 WG2098962 1,2,3-Trichlorobenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 1,2,4-Trichlorobenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 18 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 18 of 34 SAMPLE RESULTS - 07 L1636973 WRHG WELL Collected date/time: 07/18/23 12:00 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,1,1-Trichloroethane ND 0.00100 1 07/21/2023 07:00 WG2098962 1,1,2-Trichloroethane ND 0.00100 1 07/21/2023 07:00 WG2098962 Trichloroethene ND 0.00100 1 07/21/2023 07:00 WG2098962 Trichlorofluoromethane ND 0.00500 1 07/21/2023 07:00 WG2098962 1,2,3-Trichloropropane ND 0.00250 1 07/21/2023 07:00 WG2098962 1,2,4-Trimethylbenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 1,2,3-Trimethylbenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 1,3,5-Trimethylbenzene ND 0.00100 1 07/21/2023 07:00 WG2098962 Vinyl chloride ND 0.00100 1 07/21/2023 07:00 WG2098962 Xylenes, Total ND 0.00300 1 07/21/2023 07:00 WG2098962 (S) Toluene-d8 119 80.0-120 07/21/2023 07:00 WG2098962 (S) 4-Bromofluorobenzene 114 77.0-126 07/21/2023 07:00 WG2098962 (S) 1,2-Dichloroethane-d4 103 70.0-130 07/21/2023 07:00 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 19 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 19 of 34 SAMPLE RESULTS - 08 L1636973 RE PRUITT WELL Collected date/time: 07/18/23 12:30 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 07/21/2023 07:23 WG2098962 Acrolein ND 0.0500 1 07/21/2023 07:23 WG2098962 Acrylonitrile ND 0.0100 1 07/21/2023 07:23 WG2098962 Benzene ND 0.00100 1 07/21/2023 07:23 WG2098962 Bromobenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 Bromodichloromethane ND 0.00100 1 07/21/2023 07:23 WG2098962 Bromoform ND 0.00100 1 07/21/2023 07:23 WG2098962 Bromomethane ND C3 0.00500 1 07/21/2023 07:23 WG2098962 n-Butylbenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 sec-Butylbenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 tert-Butylbenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 Carbon tetrachloride ND 0.00100 1 07/21/2023 07:23 WG2098962 Chlorobenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 Chlorodibromomethane ND 0.00100 1 07/21/2023 07:23 WG2098962 Chloroethane ND 0.00500 1 07/21/2023 07:23 WG2098962 Chloroform ND 0.00500 1 07/21/2023 07:23 WG2098962 Chloromethane ND 0.00250 1 07/21/2023 07:23 WG2098962 2-Chlorotoluene ND 0.00100 1 07/21/2023 07:23 WG2098962 4-Chlorotoluene ND 0.00100 1 07/21/2023 07:23 WG2098962 1,2-Dibromo-3-Chloropropane ND 0.00500 1 07/21/2023 07:23 WG2098962 1,2-Dibromoethane ND 0.00100 1 07/21/2023 07:23 WG2098962 Dibromomethane ND 0.00100 1 07/21/2023 07:23 WG2098962 1,2-Dichlorobenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 1,3-Dichlorobenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 1,4-Dichlorobenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 Dichlorodifluoromethane ND 0.00500 1 07/21/2023 07:23 WG2098962 1,1-Dichloroethane ND 0.00100 1 07/21/2023 07:23 WG2098962 1,2-Dichloroethane ND 0.00100 1 07/21/2023 07:23 WG2098962 1,1-Dichloroethene ND 0.00100 1 07/21/2023 07:23 WG2098962 cis-1,2-Dichloroethene ND 0.00100 1 07/21/2023 07:23 WG2098962 trans-1,2-Dichloroethene ND 0.00100 1 07/21/2023 07:23 WG2098962 1,2-Dichloropropane ND 0.00100 1 07/21/2023 07:23 WG2098962 1,1-Dichloropropene ND 0.00100 1 07/21/2023 07:23 WG2098962 1,3-Dichloropropane ND 0.00100 1 07/21/2023 07:23 WG2098962 cis-1,3-Dichloropropene ND 0.00100 1 07/21/2023 07:23 WG2098962 trans-1,3-Dichloropropene ND 0.00100 1 07/21/2023 07:23 WG2098962 2,2-Dichloropropane ND 0.00100 1 07/21/2023 07:23 WG2098962 Di-isopropyl ether ND 0.00100 1 07/21/2023 07:23 WG2098962 Ethylbenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 Hexachloro-1,3-butadiene ND 0.00100 1 07/21/2023 07:23 WG2098962 Isopropylbenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 p-Isopropyltoluene ND 0.00100 1 07/21/2023 07:23 WG2098962 2-Butanone (MEK)ND 0.0100 1 07/21/2023 07:23 WG2098962 Methylene Chloride ND 0.00500 1 07/21/2023 07:23 WG2098962 4-Methyl-2-pentanone (MIBK) ND 0.0100 1 07/21/2023 07:23 WG2098962 Methyl tert-butyl ether 0.00765 0.00100 1 07/21/2023 07:23 WG2098962 Naphthalene ND C3 0.00500 1 07/21/2023 07:23 WG2098962 n-Propylbenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 Styrene ND 0.00100 1 07/21/2023 07:23 WG2098962 1,1,1,2-Tetrachloroethane ND 0.00100 1 07/21/2023 07:23 WG2098962 1,1,2,2-Tetrachloroethane ND 0.00100 1 07/21/2023 07:23 WG2098962 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 07/21/2023 07:23 WG2098962 Tetrachloroethene ND 0.00100 1 07/21/2023 07:23 WG2098962 Toluene ND 0.00100 1 07/21/2023 07:23 WG2098962 1,2,3-Trichlorobenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 1,2,4-Trichlorobenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 20 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 20 of 34 SAMPLE RESULTS - 08 L1636973 RE PRUITT WELL Collected date/time: 07/18/23 12:30 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,1,1-Trichloroethane ND 0.00100 1 07/21/2023 07:23 WG2098962 1,1,2-Trichloroethane ND 0.00100 1 07/21/2023 07:23 WG2098962 Trichloroethene ND 0.00100 1 07/21/2023 07:23 WG2098962 Trichlorofluoromethane ND 0.00500 1 07/21/2023 07:23 WG2098962 1,2,3-Trichloropropane ND 0.00250 1 07/21/2023 07:23 WG2098962 1,2,4-Trimethylbenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 1,2,3-Trimethylbenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 1,3,5-Trimethylbenzene ND 0.00100 1 07/21/2023 07:23 WG2098962 Vinyl chloride ND 0.00100 1 07/21/2023 07:23 WG2098962 Xylenes, Total ND 0.00300 1 07/21/2023 07:23 WG2098962 (S) Toluene-d8 116 80.0-120 07/21/2023 07:23 WG2098962 (S) 4-Bromofluorobenzene 111 77.0-126 07/21/2023 07:23 WG2098962 (S) 1,2-Dichloroethane-d4 103 70.0-130 07/21/2023 07:23 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 21 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 21 of 34 SAMPLE RESULTS - 09 L1636973 FBN DEV WELL Collected date/time: 07/18/23 13:00 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 07/21/2023 07:47 WG2098962 Acrolein ND 0.0500 1 07/21/2023 07:47 WG2098962 Acrylonitrile ND 0.0100 1 07/21/2023 07:47 WG2098962 Benzene ND 0.00100 1 07/21/2023 07:47 WG2098962 Bromobenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 Bromodichloromethane ND 0.00100 1 07/21/2023 07:47 WG2098962 Bromoform ND 0.00100 1 07/21/2023 07:47 WG2098962 Bromomethane ND C3 0.00500 1 07/21/2023 07:47 WG2098962 n-Butylbenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 sec-Butylbenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 tert-Butylbenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 Carbon tetrachloride ND 0.00100 1 07/21/2023 07:47 WG2098962 Chlorobenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 Chlorodibromomethane ND 0.00100 1 07/21/2023 07:47 WG2098962 Chloroethane ND 0.00500 1 07/21/2023 07:47 WG2098962 Chloroform ND 0.00500 1 07/21/2023 07:47 WG2098962 Chloromethane ND 0.00250 1 07/21/2023 07:47 WG2098962 2-Chlorotoluene ND 0.00100 1 07/21/2023 07:47 WG2098962 4-Chlorotoluene ND 0.00100 1 07/21/2023 07:47 WG2098962 1,2-Dibromo-3-Chloropropane ND 0.00500 1 07/21/2023 07:47 WG2098962 1,2-Dibromoethane ND 0.00100 1 07/21/2023 07:47 WG2098962 Dibromomethane ND 0.00100 1 07/21/2023 07:47 WG2098962 1,2-Dichlorobenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 1,3-Dichlorobenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 1,4-Dichlorobenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 Dichlorodifluoromethane ND 0.00500 1 07/21/2023 07:47 WG2098962 1,1-Dichloroethane ND 0.00100 1 07/21/2023 07:47 WG2098962 1,2-Dichloroethane ND 0.00100 1 07/21/2023 07:47 WG2098962 1,1-Dichloroethene ND 0.00100 1 07/21/2023 07:47 WG2098962 cis-1,2-Dichloroethene ND 0.00100 1 07/21/2023 07:47 WG2098962 trans-1,2-Dichloroethene ND 0.00100 1 07/21/2023 07:47 WG2098962 1,2-Dichloropropane ND 0.00100 1 07/21/2023 07:47 WG2098962 1,1-Dichloropropene ND 0.00100 1 07/21/2023 07:47 WG2098962 1,3-Dichloropropane ND 0.00100 1 07/21/2023 07:47 WG2098962 cis-1,3-Dichloropropene ND 0.00100 1 07/21/2023 07:47 WG2098962 trans-1,3-Dichloropropene ND 0.00100 1 07/21/2023 07:47 WG2098962 2,2-Dichloropropane ND 0.00100 1 07/21/2023 07:47 WG2098962 Di-isopropyl ether ND 0.00100 1 07/21/2023 07:47 WG2098962 Ethylbenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 Hexachloro-1,3-butadiene ND 0.00100 1 07/21/2023 07:47 WG2098962 Isopropylbenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 p-Isopropyltoluene ND 0.00100 1 07/21/2023 07:47 WG2098962 2-Butanone (MEK)ND 0.0100 1 07/21/2023 07:47 WG2098962 Methylene Chloride ND 0.00500 1 07/21/2023 07:47 WG2098962 4-Methyl-2-pentanone (MIBK) ND 0.0100 1 07/21/2023 07:47 WG2098962 Methyl tert-butyl ether ND 0.00100 1 07/21/2023 07:47 WG2098962 Naphthalene ND C3 0.00500 1 07/21/2023 07:47 WG2098962 n-Propylbenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 Styrene ND 0.00100 1 07/21/2023 07:47 WG2098962 1,1,1,2-Tetrachloroethane ND 0.00100 1 07/21/2023 07:47 WG2098962 1,1,2,2-Tetrachloroethane ND 0.00100 1 07/21/2023 07:47 WG2098962 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 07/21/2023 07:47 WG2098962 Tetrachloroethene ND 0.00100 1 07/21/2023 07:47 WG2098962 Toluene ND 0.00100 1 07/21/2023 07:47 WG2098962 1,2,3-Trichlorobenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 1,2,4-Trichlorobenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 22 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 22 of 34 SAMPLE RESULTS - 09 L1636973 FBN DEV WELL Collected date/time: 07/18/23 13:00 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,1,1-Trichloroethane ND 0.00100 1 07/21/2023 07:47 WG2098962 1,1,2-Trichloroethane ND 0.00100 1 07/21/2023 07:47 WG2098962 Trichloroethene ND 0.00100 1 07/21/2023 07:47 WG2098962 Trichlorofluoromethane ND 0.00500 1 07/21/2023 07:47 WG2098962 1,2,3-Trichloropropane ND 0.00250 1 07/21/2023 07:47 WG2098962 1,2,4-Trimethylbenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 1,2,3-Trimethylbenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 1,3,5-Trimethylbenzene ND 0.00100 1 07/21/2023 07:47 WG2098962 Vinyl chloride ND 0.00100 1 07/21/2023 07:47 WG2098962 Xylenes, Total ND 0.00300 1 07/21/2023 07:47 WG2098962 (S) Toluene-d8 115 80.0-120 07/21/2023 07:47 WG2098962 (S) 4-Bromofluorobenzene 113 77.0-126 07/21/2023 07:47 WG2098962 (S) 1,2-Dichloroethane-d4 104 70.0-130 07/21/2023 07:47 WG2098962 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 23 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 23 of 34 QUALITY CONTROL SUMMARYWG2098962 Volatile Organic Compounds (GC/MS) by Method 8260D L1636973-01,03,04,05,06,07,08,09 Method Blank (MB) (MB) R3952537-2 07/21/23 01:12 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 24 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 24 of 34 QUALITY CONTROL SUMMARYWG2098962 Volatile Organic Compounds (GC/MS) by Method 8260D L1636973-01,03,04,05,06,07,08,09 Method Blank (MB) (MB) R3952537-2 07/21/23 01:12 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK) U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 112 80.0-120 (S) 4-Bromofluorobenzene 109 77.0-126 (S) 1,2-Dichloroethane-d4 104 70.0-130 Laboratory Control Sample (LCS) (LCS) R3952537-1 07/21/23 00:25 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acetone 0.0250 0.0287 115 19.0-160 Acrolein 0.0250 0.0253 101 10.0-160 Acrylonitrile 0.0250 0.0265 106 55.0-149 Benzene 0.00500 0.00494 98.8 70.0-123 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 25 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 25 of 34 QUALITY CONTROL SUMMARYWG2098962 Volatile Organic Compounds (GC/MS) by Method 8260D L1636973-01,03,04,05,06,07,08,09 Laboratory Control Sample (LCS) (LCS) R3952537-1 07/21/23 00:25 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Bromobenzene 0.00500 0.00462 92.4 73.0-121 Bromodichloromethane 0.00500 0.00522 104 75.0-120 Bromoform 0.00500 0.00539 108 68.0-132 Bromomethane 0.00500 0.00338 67.6 10.0-160 n-Butylbenzene 0.00500 0.00483 96.6 73.0-125 sec-Butylbenzene 0.00500 0.00496 99.2 75.0-125 tert-Butylbenzene 0.00500 0.00463 92.6 76.0-124 Carbon tetrachloride 0.00500 0.00553 111 68.0-126 Chlorobenzene 0.00500 0.00506 101 80.0-121 Chlorodibromomethane 0.00500 0.00543 109 77.0-125 Chloroethane 0.00500 0.00557 111 47.0-150 Chloroform 0.00500 0.00513 103 73.0-120 Chloromethane 0.00500 0.00507 101 41.0-142 2-Chlorotoluene 0.00500 0.00466 93.2 76.0-123 4-Chlorotoluene 0.00500 0.00461 92.2 75.0-122 1,2-Dibromo-3-Chloropropane 0.00500 0.00446 89.2 58.0-134 1,2-Dibromoethane 0.00500 0.00516 103 80.0-122 Dibromomethane 0.00500 0.00542 108 80.0-120 1,2-Dichlorobenzene 0.00500 0.00500 100 79.0-121 1,3-Dichlorobenzene 0.00500 0.00465 93.0 79.0-120 1,4-Dichlorobenzene 0.00500 0.00472 94.4 79.0-120 Dichlorodifluoromethane 0.00500 0.00618 124 51.0-149 1,1-Dichloroethane 0.00500 0.00510 102 70.0-126 1,2-Dichloroethane 0.00500 0.00544 109 70.0-128 1,1-Dichloroethene 0.00500 0.00530 106 71.0-124 cis-1,2-Dichloroethene 0.00500 0.00502 100 73.0-120 trans-1,2-Dichloroethene 0.00500 0.00521 104 73.0-120 1,2-Dichloropropane 0.00500 0.00476 95.2 77.0-125 1,1-Dichloropropene 0.00500 0.00509 102 74.0-126 1,3-Dichloropropane 0.00500 0.00488 97.6 80.0-120 cis-1,3-Dichloropropene 0.00500 0.00488 97.6 80.0-123 trans-1,3-Dichloropropene 0.00500 0.00489 97.8 78.0-124 2,2-Dichloropropane 0.00500 0.00484 96.8 58.0-130 Di-isopropyl ether 0.00500 0.00504 101 58.0-138 Ethylbenzene 0.00500 0.00501 100 79.0-123 Hexachloro-1,3-butadiene 0.00500 0.00519 104 54.0-138 Isopropylbenzene 0.00500 0.00544 109 76.0-127 p-Isopropyltoluene 0.00500 0.00481 96.2 76.0-125 2-Butanone (MEK)0.0250 0.0253 101 44.0-160 Methylene Chloride 0.00500 0.00443 88.6 67.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 26 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 26 of 34 QUALITY CONTROL SUMMARYWG2098962 Volatile Organic Compounds (GC/MS) by Method 8260D L1636973-01,03,04,05,06,07,08,09 Laboratory Control Sample (LCS) (LCS) R3952537-1 07/21/23 00:25 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 4-Methyl-2-pentanone (MIBK) 0.0250 0.0260 104 68.0-142 Methyl tert-butyl ether 0.00500 0.00521 104 68.0-125 Naphthalene 0.00500 0.00309 61.8 54.0-135 n-Propylbenzene 0.00500 0.00476 95.2 77.0-124 Styrene 0.00500 0.00507 101 73.0-130 1,1,1,2-Tetrachloroethane 0.00500 0.00512 102 75.0-125 1,1,2,2-Tetrachloroethane 0.00500 0.00431 86.2 65.0-130 1,1,2-Trichlorotrifluoroethane 0.00500 0.00538 108 69.0-132 Tetrachloroethene 0.00500 0.00537 107 72.0-132 Toluene 0.00500 0.00494 98.8 79.0-120 1,2,3-Trichlorobenzene 0.00500 0.00427 85.4 50.0-138 1,2,4-Trichlorobenzene 0.00500 0.00418 83.6 57.0-137 1,1,1-Trichloroethane 0.00500 0.00571 114 73.0-124 1,1,2-Trichloroethane 0.00500 0.00534 107 80.0-120 Trichloroethene 0.00500 0.00543 109 78.0-124 Trichlorofluoromethane 0.00500 0.00601 120 59.0-147 1,2,3-Trichloropropane 0.00500 0.00491 98.2 73.0-130 1,2,4-Trimethylbenzene 0.00500 0.00481 96.2 76.0-121 1,2,3-Trimethylbenzene 0.00500 0.00472 94.4 77.0-120 1,3,5-Trimethylbenzene 0.00500 0.00483 96.6 76.0-122 Vinyl chloride 0.00500 0.00526 105 67.0-131 Xylenes, Total 0.0150 0.0154 103 79.0-123 (S) Toluene-d8 111 80.0-120 (S) 4-Bromofluorobenzene 113 77.0-126 (S) 1,2-Dichloroethane-d4 106 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 27 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 27 of 34 QUALITY CONTROL SUMMARYWG2101360 Volatile Organic Compounds (GC/MS) by Method 8260D L1636973-02 Method Blank (MB) (MB) R3952850-3 07/25/23 19:53 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 28 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 28 of 34 QUALITY CONTROL SUMMARYWG2101360 Volatile Organic Compounds (GC/MS) by Method 8260D L1636973-02 Method Blank (MB) (MB) R3952850-3 07/25/23 19:53 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK) U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 105 80.0-120 (S) 4-Bromofluorobenzene 95.6 77.0-126 (S) 1,2-Dichloroethane-d4 113 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3952850-1 07/25/23 18:55 • (LCSD) R3952850-2 07/25/23 19:15 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Acetone 0.0250 0.0231 0.0262 92.4 105 19.0-160 12.6 27 Acrolein 0.0250 0.0368 0.0301 147 120 10.0-160 20.0 26 Acrylonitrile 0.0250 0.0286 0.0279 114 112 55.0-149 2.48 20 Benzene 0.00500 0.00528 0.00511 106 102 70.0-123 3.27 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 29 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 29 of 34 QUALITY CONTROL SUMMARYWG2101360 Volatile Organic Compounds (GC/MS) by Method 8260D L1636973-02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3952850-1 07/25/23 18:55 • (LCSD) R3952850-2 07/25/23 19:15 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Bromobenzene 0.00500 0.00483 0.00466 96.6 93.2 73.0-121 3.58 20 Bromodichloromethane 0.00500 0.00554 0.00540 111 108 75.0-120 2.56 20 Bromoform 0.00500 0.00489 0.00469 97.8 93.8 68.0-132 4.18 20 Bromomethane 0.00500 0.00580 0.00554 116 111 10.0-160 4.59 25 n-Butylbenzene 0.00500 0.00447 0.00421 89.4 84.2 73.0-125 5.99 20 sec-Butylbenzene 0.00500 0.00490 0.00431 98.0 86.2 75.0-125 12.8 20 tert-Butylbenzene 0.00500 0.00477 0.00453 95.4 90.6 76.0-124 5.16 20 Carbon tetrachloride 0.00500 0.00575 0.00526 115 105 68.0-126 8.90 20 Chlorobenzene 0.00500 0.00512 0.00494 102 98.8 80.0-121 3.58 20 Chlorodibromomethane 0.00500 0.00507 0.00489 101 97.8 77.0-125 3.61 20 Chloroethane 0.00500 0.00559 0.00514 112 103 47.0-150 8.39 20 Chloroform 0.00500 0.00547 0.00531 109 106 73.0-120 2.97 20 Chloromethane 0.00500 0.00612 0.00564 122 113 41.0-142 8.16 20 2-Chlorotoluene 0.00500 0.00498 0.00475 99.6 95.0 76.0-123 4.73 20 4-Chlorotoluene 0.00500 0.00482 0.00453 96.4 90.6 75.0-122 6.20 20 1,2-Dibromo-3-Chloropropane 0.00500 0.00438 0.00371 87.6 74.2 58.0-134 16.6 20 1,2-Dibromoethane 0.00500 0.00497 0.00486 99.4 97.2 80.0-122 2.24 20 Dibromomethane 0.00500 0.00554 0.00534 111 107 80.0-120 3.68 20 1,2-Dichlorobenzene 0.00500 0.00487 0.00465 97.4 93.0 79.0-121 4.62 20 1,3-Dichlorobenzene 0.00500 0.00489 0.00470 97.8 94.0 79.0-120 3.96 20 1,4-Dichlorobenzene 0.00500 0.00479 0.00471 95.8 94.2 79.0-120 1.68 20 Dichlorodifluoromethane 0.00500 0.00550 0.00530 110 106 51.0-149 3.70 20 1,1-Dichloroethane 0.00500 0.00544 0.00524 109 105 70.0-126 3.75 20 1,2-Dichloroethane 0.00500 0.00597 0.00574 119 115 70.0-128 3.93 20 1,1-Dichloroethene 0.00500 0.00483 0.00453 96.6 90.6 71.0-124 6.41 20 cis-1,2-Dichloroethene 0.00500 0.00526 0.00505 105 101 73.0-120 4.07 20 trans-1,2-Dichloroethene 0.00500 0.00516 0.00488 103 97.6 73.0-120 5.58 20 1,2-Dichloropropane 0.00500 0.00564 0.00539 113 108 77.0-125 4.53 20 1,1-Dichloropropene 0.00500 0.00561 0.00516 112 103 74.0-126 8.36 20 1,3-Dichloropropane 0.00500 0.00512 0.00484 102 96.8 80.0-120 5.62 20 cis-1,3-Dichloropropene 0.00500 0.00541 0.00496 108 99.2 80.0-123 8.68 20 trans-1,3-Dichloropropene 0.00500 0.00516 0.00496 103 99.2 78.0-124 3.95 20 2,2-Dichloropropane 0.00500 0.00592 0.00505 118 101 58.0-130 15.9 20 Di-isopropyl ether 0.00500 0.00586 0.00565 117 113 58.0-138 3.65 20 Ethylbenzene 0.00500 0.00483 0.00471 96.6 94.2 79.0-123 2.52 20 Hexachloro-1,3-butadiene 0.00500 0.00481 0.00433 96.2 86.6 54.0-138 10.5 20 Isopropylbenzene 0.00500 0.00491 0.00469 98.2 93.8 76.0-127 4.58 20 p-Isopropyltoluene 0.00500 0.00486 0.00430 97.2 86.0 76.0-125 12.2 20 2-Butanone (MEK)0.0250 0.0292 0.0279 117 112 44.0-160 4.55 20 Methylene Chloride 0.00500 0.00503 0.00481 101 96.2 67.0-120 4.47 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 30 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 30 of 34 QUALITY CONTROL SUMMARYWG2101360 Volatile Organic Compounds (GC/MS) by Method 8260D L1636973-02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3952850-1 07/25/23 18:55 • (LCSD) R3952850-2 07/25/23 19:15 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 4-Methyl-2-pentanone (MIBK) 0.0250 0.0300 0.0290 120 116 68.0-142 3.39 20 Methyl tert-butyl ether 0.00500 0.00520 0.00494 104 98.8 68.0-125 5.13 20 Naphthalene 0.00500 0.00411 0.00384 82.2 76.8 54.0-135 6.79 20 n-Propylbenzene 0.00500 0.00488 0.00458 97.6 91.6 77.0-124 6.34 20 Styrene 0.00500 0.00444 0.00455 88.8 91.0 73.0-130 2.45 20 1,1,1,2-Tetrachloroethane 0.00500 0.00515 0.00492 103 98.4 75.0-125 4.57 20 1,1,2,2-Tetrachloroethane 0.00500 0.00503 0.00433 101 86.6 65.0-130 15.0 20 1,1,2-Trichlorotrifluoroethane 0.00500 0.00516 0.00502 103 100 69.0-132 2.75 20 Tetrachloroethene 0.00500 0.00525 0.00498 105 99.6 72.0-132 5.28 20 Toluene 0.00500 0.00501 0.00479 100 95.8 79.0-120 4.49 20 1,2,3-Trichlorobenzene 0.00500 0.00445 0.00412 89.0 82.4 50.0-138 7.70 20 1,2,4-Trichlorobenzene 0.00500 0.00434 0.00417 86.8 83.4 57.0-137 4.00 20 1,1,1-Trichloroethane 0.00500 0.00563 0.00537 113 107 73.0-124 4.73 20 1,1,2-Trichloroethane 0.00500 0.00492 0.00485 98.4 97.0 80.0-120 1.43 20 Trichloroethene 0.00500 0.00543 0.00546 109 109 78.0-124 0.551 20 Trichlorofluoromethane 0.00500 0.00580 0.00553 116 111 59.0-147 4.77 20 1,2,3-Trichloropropane 0.00500 0.00514 0.00498 103 99.6 73.0-130 3.16 20 1,2,4-Trimethylbenzene 0.00500 0.00477 0.00446 95.4 89.2 76.0-121 6.72 20 1,2,3-Trimethylbenzene 0.00500 0.00479 0.00445 95.8 89.0 77.0-120 7.36 20 1,3,5-Trimethylbenzene 0.00500 0.00482 0.00457 96.4 91.4 76.0-122 5.32 20 Vinyl chloride 0.00500 0.00530 0.00478 106 95.6 67.0-131 10.3 20 Xylenes, Total 0.0150 0.0145 0.0141 96.7 94.0 79.0-123 2.80 20 (S) Toluene-d8 101 100 80.0-120 (S) 4-Bromofluorobenzene 98.2 98.6 77.0-126 (S) 1,2-Dichloroethane-d4 116 115 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 31 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 31 of 34 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S)Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description C3 The reported concentration is an estimate. The continuing calibration standard associated with this data responded low. Method sensitivity check is acceptable. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 32 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 32 of 34 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 12:46 33 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: HS and E, Inc.L1636973 07/26/23 14:26 33 of 34