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HomeMy WebLinkAbout1302_Cabarrus_MSWLF_Units2&3_April23GW_FID1811970_20230725Cabarrus County Sanitary Landfill -Units 2 and 3 Semi -Annual Sampling Report Facility Permit # 1302-MSWLF- CDLF-1998 (April 2023 Sampling Event) 1792 � u Prepared July 2023 pEl1R USE ONLY: I]Pacer Report �Electlonic Data Email CO (data loaded: Yea I No) Doc/Event M. c DE�NR Environmental Monitoring Division of Waste Management -Solid Waste Renortina Form Notice: This form and any Information attached to it am "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request INC General Statute 132-6). Instructions: Prepare one form for each individually monitored unit. Please type or print Legibly. Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, of site source, pre-existing cendLdon, etc.). Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. Attach a notification fable of any methane gas values that attain or exceed explosive gas levels. This Includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(i). Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entry, submitting data laboratory, consutiam, facility owner) Consultant -CDM Smith Contact for questions about data formatting. Include data preparers name, telephone number and E-mail address: Name: Mat Colons Phone: J91 9)325-3569 E-mail: colonemf(okdmsmith.com NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit b (.0500 or.1600) October 20-24, 2006) abamrs County Landfil Units 2 Potato Rooadda 02-MS .0500 and .1600 117-21, 2023 and Con1Iris North 28025 F 5LF- C Environmental Status: (Check all that apply) ❑ Initial/Back9mund Monitoring Q Detect. Mormormg ❑K Assessment Monitonng © Corrective Action f dale submitted: (Check all Nat apply) Groundwater monitoring data from monitoring wells Groundwater monitoring data from private water supply wells Leachale monitoring data Surface water monitoring data © Methane gas monitoring data X❑ Corrective action data (specify) MINA Data Other(specify) Notification attached? e No. No gmuntlwater or surface water standards were exceeded. Yes. a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 28 surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes Me methane monitoring points, dates, sample values and explosive methane gas limits. to me bast or my chowmage, me rmermabon reported and statements made on this date submittal and attachments are true and correct, Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. 1 am aware that there are significant penalties for making any false statement, representation, or certification Including the possibility of a fine and imprisonment. Mathew Colons Consultant (919)325-35M Fac""" a Na (Print) T le (Area Coda Telel July 24, 2023 Affix Signature Date. 5400 Glenwood Avenue, Suite 400, Raleigh, North Camlina 27612 A +� -- Efz': Facility Representative Address VA '• F-0412 NC PE Firm License Number (if applicable effective May 1, 2009) Revised 62009 Smith 5400 Glenwood Avenue, Suite 400 Raleigh, North Carolina 27612 tel: 919 325-3500 July 24, 2023 Ms. Jaclynne Drummond North Carolina Department of Environmental Quality Division of Waste Management Solid Waste Section 2090 U.S. 70 Highway Swannanoa, North Carolina 28778 Subject: April 2023 Semi -Annual Sampling Report Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Dear Ms. Drummond: CDM Smith Inc. (CDM Smith), on behalf of Cabarrus County (County), is submitting an electronic copy of the April 2023 semi-annual sampling event report. This letter report presents the results of the recently completed sampling at Units 2 and 3 of the Cabarrus County Landfill and constitutes the first semi- annual sampling event for 2023. The approved groundwater monitoring network consists of the following wells: MW-1, -3, -3 Deep, -A, -B, -C, -D, -E Rep, -E Deep, -F, -G, -H, -H Deep, -I, -J, -K, -L, -L Deep, -M, -X, CD-4 Rep, assessment wells AMW-1s, -1d, -2s, and -2d, and background wells CD-1s and CD-1d. Surface water sample locations include SW-1 and -2, which also monitor the Unit 1 Landfill. Assessment wells AMW-1s, -1d, -2s, and -2d were added to the groundwater monitoring network in October 2009 as part of the Corrective Action Plan (CAP) implementation. CD-4 Rep was installed in January 2009 as part of the proposed Phase I C&D Landfill expansion. Assessment wells CD-4, -5, and -6 were added to the groundwater monitoring network in September 2006 during the Phase I C&D Landfill expansion. Assessment wells CD-4 and -5 were abandoned in July 2010 in preparation of the Phase 2 C&D Landfill expansion. Assessment well CD-6 was abandoned on February 2, 2017, as part of the Phase 3 C&D Landfill expansion. Field activities, sampling and landfill gas screening results, and an evaluation of corrective action activities are discussed below. Field Activities Groundwater and surface water samples from Units 2 and 3 of the Cabarrus County Landfill were collected on April 17-21, 2023. Groundwater samples were collected from the monitoring wells by use of a peristaltic pump or disposable, laboratory decontaminated bailers. Monitoring well and surface 0 WATER + ENVIRONMENT+ TRANSPORTATION+ ENERGY + FACILITIES Smith Ms. Jaclynne Drummond July 24, 2023 Page 2 water locations for Units 2 and 3 are provided on Figure 1. Construction details for each monitoring well are summarized in Table 1. Groundwater elevations were measured at each well on April 17, 2023, prior to sampling and are presented in Table 2. These groundwater elevations were used to construct potentiometric contours for this sampling event and are presented on Figure 1. The groundwater elevations and potentiometric contours were used to estimate groundwater velocities at each well, which are presented in Table 3. After depth to groundwater was measured, three well volumes of water were removed from each well prior to sampling to provide fresh formation water within the well water column. Low -flow sampling techniques were used to purge and sample wells used to monitor natural attenuation. Each well volume was measured for pH, conductivity, turbidity, temperature, dissolved oxygen (DO), and oxidation- reduction potential (ORP) using a YSI-556 multi -parameter water quality meter and a HANNA HI 98703 turbidity meter. Wells with elevated turbidity were allowed to settle prior to sampling. The water quality parameters at the time of sampling are presented in Table 4. Sampling Results Pace Analytical Services, Inc., located in West Columbia, South Carolina, analyzed the groundwater and surface water samples for North Carolina Appendix I volatile organic compounds (VOCs) and metals, except for MW-3 and -A. Samples collected from MW-3 and -A were not analyzed for VOCs due to laboratory error. In a letter dated May 28, 2019, the Solid Waste Section (SWS) requested that all groundwater and surface water samples collected from landfills be analyzed for 1,4-dioxane after July 1, 2018. On July 1, 2019, the SWS approved the removal of 1,4-dioxane from the sampling program for all wells, with the exceptions of MW-1, -B, -E Rep, -E Deep, -F, -G, -H, -M, -X, SW-1 and -2, due to two consecutive non -detect events (May 2019 and November 2019). Samples were collected from the wells requiring the 1,4-dioxane analysis during the April 2023 sampling event and the results are provided below. Additional groundwater samples were collected from the background well CD-1s; monitoring wells MW-A, -E Rep, -E Deep, -L, and -3; and assessment wells AMW-1s, -1d, -2s, and -2d to evaluate the effectiveness of natural attenuation and the Phase II injection event and are discussed in the Corrective Action Evaluation section of this letter report. Samples were analyzed for monitored natural attenuation parameters (i.e., alkalinity, biochemical oxygen demand (BOD), chemical oxygen demand (COD), chloride, dissolved hydrogen, dissolved gases (i.e., methane, ethane, ethene, carbon dioxide), volatile fatty acids (i.e., acetic, butyric, lactic, propionic, and pyruvic), ferrous iron, nitrate, sulfate, sulfide, and total organic carbon), except for CD-1s, MW-3, -A, and -L. Samples collected from CD -Is and MW-L were not analyzed for volatile fatty acids, CD-1s was not analyzed for BOD, and MW-3, -A, and -L were not analyzed for dissolved gases to laboratory error. Note that ferrous iron was analyzed in the field using a Hach® test kit due to the short hold time of 15 minutes. 0 Smith Ms. Jaclynne Drummond July 24, 2023 Page 3 The analytical results were reported to the laboratory specific method detection limit (MDL) and are quantifiable at or below the limit of quantitation (LOQ). All monitoring wells for Units 2 and 3 with detections of analytes above the MDL but below the LOQ were qualified as estimated or "J" flags. In samples collected from MW-E Deep, a detection of barium had an "S" flag, indicating a matrix spike/matrix spike duplicate failure. In samples collected from CD-1s, AMW-1s, -1d, -2s, -2d, MW-E Rep, and -E Deep, detections of methane had "B" flags, indicating that the analyte was detected in the method blank. Samples collected from MW-E Deep also had an "H" flag for the detection of methane, indicating that the analyte was analyzed outside of hold time. The following list indicates the analytes detected above the LOQ at each sampling location. No "J" flag or general chemistry detections are provided. Underlined analytes exceeded the 15A NCAC 02L .0202 (NC 2L) Groundwater Standard. A complete summary of all detected and estimated concentrations from the May 2012 through the April 2023 sampling events is presented in Table 5. Laboratory data reports are provided in Appendix A. CD-1s (Background) Metals: Volatile Organic Compounds: CD-1d (Background) Metals: Volatile Organic Compounds: CD-4 Rep Metals: Volatile Organic Compounds: AMW-1s Barium, Vanadium None Detected Barium, Vanadium None Detected Barium, Cobalt, Nickel 1,1-Dichloroethane Metals: Barium, Beryllium Volatile Organic Compounds: 1,4-Dichlorobenzene, 1,1-Dichloroethane, cis-1,2-Dichloroethene AMW-1d Metals: Barium, Cobalt, Copper, Nickel, Zinc Volatile Organic Compounds: Benzene, Chloroethane, 1,4-Dichlorobenzene, 1,1-Dichloroethane, cis- 1,2-Dichloroethene, Vinyl Chloride 0 Smith Ms. Jaclynne Drummond July 24, 2023 Page 4 AMW-2s Metals: Barium, Beryllium Volatile Organic Compounds: 1,1-Dichloroethane, cis-1,2-Dichloroethene, Tetrachloroethene (PCE), Trichloroethene (TCE) AMW-2d Metals: Barium Volatile Organic Compounds: Benzene, 1,4-Dichlorobe nzene, 1,1-Dichloroethane, 1,1-Dichloroethene, cis- 1,2-Dichloroethene, Methylene Chloride, PCE, TCE MW-1 Metals: Barium, Cobalt, Copper, Lead, Nickel Volatile Organic Compounds: 1,1-Dichloroethane, cis-1,2-Dichloroethene, 1,4-Dioxane MW-3 Metals: Barium Volatile Organic Compounds: Not Analyzed MW-3 Deep Metals: Barium Volatile Organic Compounds: 1,1-Dichloroethane M W-A Metals: Barium, Cobalt, Copper, Nickel, Zinc Volatile Organic Compounds: Not Analyzed MW-6 Metals: Barium, Cobalt Volatile Organic Compounds: 1,4-Dioxane MW-C Metals: Barium Volatile Organic Compounds: MW-D Metals: Arsenic, Barium, Cobalt, Nickel Volatile Organic Compounds: Benzene, Chlorobenzene, Chloroethane, 1,4-Dichlorobenzene, cis- 1,2-Dichloroethene, TCE, Vinyl Chloride 0 Smith Ms. Jaclynne Drummond July 24, 2023 Page 5 MW-E Rep Metals: Barium, Cobalt, Nickel Volatile Organic Compounds: Benzene, Chlorobenzene, Chloroethane, 1,4-Dichlorobenzene, 1,1-Dichloroethane, 1,2-Dichloroethane, cis-1,2-Dichloroethene, 1,2-Dichloropropane, 1,4-Dioxane, Vinyl Chloride MW-E Deep Metals: Arsenic, Barium, Cobalt, Lead, Nickel, Zinc Volatile Organic Compounds: Benzene, Chlorobenzene, Chloroethane, 1,4-Dichlorobenzene, 1,2-Dichloroethane, 1,2-Dichloropropane, 1,4-Dioxane MW-F Metals: Barium, Nickel Volatile Organic Compounds: cis- 1,2-Dichloroethene, 1,4-Dioxane MW-G Metals: Arsenic, Barium, Cobalt, Nickel Volatile Organic Compounds: Chlorobenzene, 1,4-Dichlorobenzene, 1,1-Dichloroethane, 1,4-Dioxane MW-H Metals: Barium Volatile Organic Compounds: None Detected MW-H Deep Metals: Barium, Lead Volatile Organic Compounds: None Detected MW-1 Metals: Barium, Zinc Volatile Organic Compounds: 1,1-Dichloroethane, cis-1,2-Dichloroethene, PCE, TCE MW-J Metals: Barium, Zinc Volatile Organic Compounds: None Detected MW-K Metals: Barium, Lead, Nickel, Vanadium Volatile Organic Compounds: cis- 1,2-Dichloroethene 0 Smith Ms. Jaclynne Drummond July 24, 2023 Page 6 MW-L Metals: Volatile Organic Compounds: MW-L Deep Metals: Volatile Organic Compounds: MW-M Metals: Volatile Organic Compounds: MW-X Metals: Volatile Organic Compounds: SW-1 Metals: Volatile Organic Compounds: SW-2 Metals: Volatile Organic Compounds: Barium, Copper, Lead, Vanadium, Zinc PCE Barium, Zinc 1,4-DichIorobenzene, 1,1-Dichloroethane, 1,1-Dichloroethene, cis- 1,2-Dichloroethene, Methylene Chloride, PCE, TCE, Trichlorofluoromethane Barium 1,1-Dichloeothane Barium None Detected Barium 1,4-Dioxane Barium 1,4-Dioxane "J" flags were not included in the previous list, but several locations had "J" flag detections that exceeded the standards. These constituents along with their location are listed below. Antimony: AMW-1d Cobalt: MW-K and -L 1,2-Dichloroethane: AMW-1d Vinyl Chloride AMW-1s and MW-E Deep Equipment and trip blanks were analyzed for quality control. A duplicate sample was also analyzed for quality control. There were no detections in the trip blanks above the MDLs. The equipment blank had an estimated detection of 2-butanone below its NC 2L Groundwater Standard. The duplicate sample, identified as DUP, was collected from MW-D, and had similar analyte concentrations as those detected in MW-D, except for an estimated detection of zinc in the parent sample below its NC 2L Groundwater Standard that was not detected in the duplicate sample. 0 Smith Ms. Jaclynne Drummond July 24, 2023 Page 7 Metals detected above the standards are likely natural occurring based on concentrations in the background monitoring wells or are from elevated turbidity at the time of sample collection. Table 6 presents a summary of all analytes detected during the April 2023 sampling event that exceeded the NC 2L Groundwater Standards. Corrective Action Evaluation In December 2008, CDM Smith, on behalf of the County, submitted an Assessment of Corrective Measures Report to the SWS for the closed landfill Units 2 and 3 in accordance with North Carolina Solid Waste Management Rule 15 NCAC 13B .1635. Monitored natural attenuation and institutional controls paired with in situ remediation by enhanced bioremediation was selected as the remedy to address groundwater contamination by select VOCs at the facility. In situ remediation efforts were to be focused on the bedrock contamination near monitoring wells MW-E Rep and -E Deep. Groundwater contamination in the area of MW-E Deep is caused by migration of leachate from the closed landfill Units 2 and 3 downward into the shallow fractured bedrock, thereby allowing low-level VOCs to migrate into this area prior to being attenuated below NC 2L Groundwater Standards. Following approval of the CAP in September 2009 and the Phase I injection permit, six injection wells were installed upgradient of the MW-E cluster in October 2009 as shown on Figure 2. A 3% solution of potable water and EOS® 450, which is an emulsion of soybean oil and water, was injected simultaneously into the injection wells from November 2-6, 2009. A total of 38,100 gallons of the solution were injected with each well receiving approximately 6,350 gallons. The initial injection of EOS® 450 successfully degraded PCE and TCE to daughter products in the injection area and neither compound has been detected above the NC 2L Groundwater Standards in MW-E Deep since the Phase I injection in November 2009. It was assumed that the EOS® 450 would be viable for a period of 3 to 5 years. However, samples collected from the MW-E cluster and wells downgradient of the injection area during the November 2013 sampling event showed that groundwater contaminant concentrations had increased and levels exceeding the applicable NC 2L Groundwater Standards had been detected in monitoring wells near the property line. Due to the increasing downgradient contaminant concentrations and NC 2L Groundwater Standard exceedances near the property line, the groundwater conditions were re-evaluated in accordance with the CAP and a Phase II injection was implemented. To assess the biological conditions in the injection area prior to initiating the Phase II injection, groundwater samples were collected from MW-E Rep, -E Deep, AMW-1s, -1d, -2s, and -2d in January 2014 and analyzed for Dehalococcoides spp (DHC), the bacteria responsible for degrading the chlorinated ethene species of VOCs. The specific genes of the bacteria that promote dechlorination were also analyzed. Analytical results for the DHC analyses are summarized in Table 7 and show that a 0 Smith Ms. Jaclynne Drummond July 24, 2023 Page 8 sufficient population exists at monitoring wells MW-E, -E Deep, and assessment monitoring well AMW-2s for reductive dechlorination by enhanced anaerobic bioremediation. DHC was detected at low concentrations in assessment monitoring wells AMW-1d and -2d and was not detected at AMW-1s. The absence of DHC at AMW-1s is likely associated with relatively low VOC concentrations. Following approval of the injection permit in January 2014, the Phase II injection was completed from February 10-18, 2014, using potable water and a 10% solution of 60% SRS®-FR large droplet emulsified vegetable oil substrate. SRS®-FR is specifically designed for use in fractured bedrock environments and is a mixture of 60% emulsified vegetable oil, 20% water, 5-15% of proprietary emulsifiers and nutrients, and 5% sodium lactate. The nutrient component of SRS®-FR further enhances the microbial population growth. A total of 9,966 gallons of the solution were injected during the Phase II event with each well receiving approximately 1,661 gallons. To monitor the progress of the Phase II injection and the geochemical and biological response of the aquifer, groundwater samples were collected quarterly from monitoring wells MW-E Rep and -E Deep and assessment wells AMW-1s, -1d, -2s, and -2d. The first and third quarterly sampling events were completed in conjunction with the May and November 2014 semi-annual sampling events respectively. The second quarterly sampling event was completed in August 2014 and the fourth quarterly sampling event was completed in March 2015. A 15-month post -injection sampling event was completed in May 2015. Water quality measurements of pH, temperature, ORP, DO, conductivity, turbidity, and ferrous iron were collected during each sampling event. In addition, the quarterly samples were submitted to an analytical laboratory for analysis of nitrate, sulfate, alkalinity, chloride, COD, VOCs, dissolved gasses, and metabolic acids. North Carolina Appendix I metals were collected during events that corresponded with the semi-annual sampling program. Additional samples were collected during the fourth quarterly sampling event (March 2015) from monitoring wells MW-E Rep and -E Deep and assessment wells AMW-1s, -1d, -2s, and -2d and analyzed for DHC to assess the biological conditions in the injection area after initiating the Phase II injection. A sufficient population of DHC existed at assessment monitoring well AMW-1d for reductive dechlorination by enhanced anaerobic bioremediation and DHC was detected at low concentrations in monitoring well MW-E Deep. Detections of DHC in AMW-1d indicated a healthy population of DHC in the primary bedrock treatment zone surrounding the injection wells. DHC detections in MW-E Deep was an indication that active treatment in bedrock was also occurring downgradient. DHC was not detected at MW-E Rep, AMW-1s, -2s, or -2d and was likely due to reduced VOC concentrations from upgradient treatment. Analytical results for the DHC analyses are summarized in Table 7. 0 Smith Ms. Jaclynne Drummond July 24, 2023 Page 9 On September 28, 2015, a report summarizing the results of the Phase II injection was submitted to the SWS. The report stated that the Phase II injection of emulsified vegetable oil replenished the carbon source and complete reductive dechlorination is occurring at MW-E, -E Deep, and AMW-1d. The presence of DHC populations and functional genes in MW-E Deep and AMW-1d demonstrate that the treatment process can achieve complete chlorinated VOC degradation if a sufficient carbon donor is present. As part of the semi-annual monitoring program, additional groundwater samples were collected from the background well CD-1s; monitoring wells MW-A, -E Rep, -E Deep, -L, and -3; and assessment wells AMW-1s, -1d, -2s, and -2d. Samples were analyzed for monitored natural attenuation parameters. These additional samples were collected to evaluate natural attenuation and the effectiveness of the Phase II injection as part of the CAP. A complete summary of the geochemical results is provided in Table 5. Contaminant concentration trends for MW-A, -3, -E Rep, -E Deep, AMW-1s, -1d, -2s, and -2d were evaluated to determine the effectiveness of natural attenuation and the Phase II injection. Figures 3 through 10 present total VOC contaminant concentration data for each well. An isoconcentration contour map with data from the April 2023 sampling event is provided on Figure 11. The total VOC trend analysis for MW-A is presented on Figure 3. Note that VOCs were not analyzed from the April 2023 sampling event for MW-A and only results from September 1994 through October 2022 are shown. Total VOC concentrations increased in MW-A between June 1995 and April 2003 and show a decreasing trend from April 2003 to October 2022. Figure 4 presents the total VOC trend analysis for MW-3. Note that VOCs were not analyzed from the April 2023 sampling event for MW-3 and only results from July 1998 through October 2022 are shown. Total VOC concentrations show an increasing trend. 1,1-Dichloroethane, PCE, and TCE are the only analytes that have been detected in MW-3 above the NC 2L Groundwater Standards. The geochemical data indicates aerobic conditions at MW-3. VOC concentrations in MW-3 Deep have never been detected above the standards. The total VOC trend analyses for MW-E Rep and -E Deep are presented on Figures 5 and 6, respectively. Total VOC concentrations in MW-E Rep and -E Deep have decreased since the November 2009 Phase I injection. PCE and TCE have not been detected above the NC 2L Groundwater Standards in MW-E Deep since the Phase I injection and have not been detected above the MDL since August 2010. Delivery of the carbon substrate (i.e., SRS®-FR) during the Phase II injection was effective based on the increase in COD at MW-E Deep. Historical geochemical data shows reducing conditions exist at the MW-E cluster based on low DO and high methane concentrations. ORP has fluctuated since the November 2016 sampling event. The increase in metabolic acids and ferrous iron at MW-E Deep also indicates that a 0 Smith Ms. Jaclynne Drummond July 24, 2023 Page 10 reducing subsurface environment exists. A geochemically reducing environment is favorable for anaerobic reductive dechlorination. Figures 7 and 8 present the total VOC trend analyses for assessment wells AMW-Is and -1d, respectively. Total VOC concentrations in AMW-1s show an increasing trend from November 2010 to May 2013 but show a decreasing trend from May 2013 to April 2023. VOCs have not been detected above the standards in AMW-1s since the May 2019 sampling event. Total VOC concentrations in AMW-1d show a decreasing trend from the initial sampling in October 2009 to November 2019 but have fluctuated since the November 2019 sampling event. Historical data shows reducing conditions existed at AMW-1d but DO and ORP have fluctuated since the November 2017 sampling event. The concentration of vinyl chloride generally increased from the Phase II injection to November 2017 while TCE concentrations decreased, indicating anaerobic reductive dechlorination is occurring as vinyl chloride is a daughter product of TCE. However, from November 2017 to September 2020, TCE concentrations increased, and the concentration of vinyl chloride decreased. TCE has not been detected above the standard since September 2020 and results show that the concentration of vinyl chloride increased. The total VOC trend analyses for AMW-2s and -2d are presented on Figures 9 and 10, respectively. Total VOC concentrations at AMW-2s show an increasing trend between the initial sampling event in October 2009 and November 2014 and have fluctuated since the November 2014 sampling event, but generally show a decreasing trend. Total VOC concentrations show an increasing trend at AMW-2d from November 2010 to November 2017 but have fluctuated since then. The AMW-2 cluster is located farthest downgradient of the injection area and the shallow well is screened in partially weathered rock. Geochemical results indicate an aerobic subsurface environment. Landfill Gas Monitoring The approved landfill gas monitoring network consists of monitoring wells MGW-1 through -16. Site structures that are monitored on the property include the scale house, maintenance shop, electricity building, and recycling facility. Quarterly landfill gas monitoring of the facility was completed on February 8 and May 2, 2023, using a GEM 5000+ landfill gas analyzer (GEM). No methane or hydrogen sulfide was detected in any site structures during either monitoring event. No methane or hydrogen sulfide was detected in any of the landfill gas monitoring wells during the February 2023 monitoring event. Methane was detected below the 5 percent lower explosive limit in MGW-3 at 2.0 percent by volume during the May 2023 monitoring event. Copies of the quarterly landfill gas monitoring results and equipment calibration data have been placed in the landfill operating record and are provided in Appendix B. 0 Smith Ms. Jaclynne Drummond July 24, 2023 Page 11 Recommendations Units 2 and 3 of the Cabarrus County Landfill are unlined and are the source of VOC concentrations that are above the NC 2L Groundwater Standards in downgradient monitoring wells. The injection remedy successfully reduced the contaminant concentrations in bedrock monitoring well MW-E Deep and developed a primary VOC treatment zone in the vicinity of the injection wells and MW-E Rep. Downgradient VOC concentrations in bedrock and saprolite should continue to decrease due to reduced VOC concentrations in the primary treatment zone. Additional injections will be necessary in the future once all electron donors have been consumed and complete dechlorination stalls. The County will continue with the semi-annual assessment monitoring program. In addition to sampling for Appendix I VOCs, including 1,4-dioxane, and metals, and the Appendix II constituent, bis(2-ethylhexyl) phthalate (sampled at CD-1s, -1d, MW-C, -E Deep, -H, -I, and AMW-2d during the spring sampling event), samples collected from CD-1s, MW-A, -E Rep, -E Deep, -L, -3, AMW-1s, -1d, -2s, and -2d will continue to be analyzed for natural attenuation parameters during the semi-annual sampling events. Future analytical results will be monitored to evaluate if another injection will be needed. The next sampling event will be completed in the fall of 2023. If you have any questions or require further explanation, do not hesitate to call me at (919) 325-3500 or by email at colonemf@cdmsmith.com. Sincerely, _XA IL_e� Mathew F. Colone, P.G. CDM Smith Inc. cc: Kevin Grant, Cabarrus County 0 Table 1 Monitoring Well Construction Summary Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 DepthMonitoring Well Installation Geology of Total Facility Permit Number I Latitude Longitude Screened Diameter Code .- 1302-MSWLF-CDLF-1998 CD-1s (background well) 8/7/2006 35.47788 80.52334 Saprolite 29.53 18.0-28.0 16.0-28.0 14.0-16.0 2.0 1302-MSWLF-CDLF-1998 CD-1d (background well) 7/21/2004 35.47788 80.52340 PWR 52.15 40.0-50.0 38.0-50.0 36.0-38.0 2.0 1302-MSWLF-CDLF-1998 AMW-1s 10/6/2009 35.46915 80.52225 PWR 67.57 50.0-65.0 48.0-65.0 46.0-48.0 2.0 1302-MSWLF-CDLF-1998 AMW-1d 10/8/2009 35.46914 80.52227 Bedrock 96.93 0-78.0 84.0-94.0 82.0-94.0 80.0-82.0 2.0 1302-MSWLF-CDLF-1998 AMW-2s 10/6/2009 35.46829 80.52232 PWR 39.90 -- 22.0-37.0 20.0-37.0 18.0-20.0 2.0 1302-MSWLF-CDLF-1998 AMW-2d 10/8/2009 35.46831 80.52233 Bedrock 63.55 0-51.0 55.0-60.0 53.0-60.0 51.0-53.0 2.0 1302-MSWLF-CDLF-1998 CD-4 Rep 1/15/2009 35.47656 80.52210 Saprolite 19.41 -- 6.0-16.0 4.0-16.0 2.0-4.0 2.0 1302-MSWLF-CDLF-1998 MW-1 1990s 35.47355 80.52105 Saprolite/PWR 29.93 18.0-28.0 16.0-28.0 14.0-16.0 2.0 1302-MSWLF-CDLF-1998 MW-3 2/17/1992 35.46794 80.52120 Saprolite/PWR 35.10 -- 19.0-34.0 17.0-34.0 15.0-17.0 2.0 1302-MSWLF-CDLF-1998 MW-3 deep 6/3/2003 35.46785 80.52133 Bedrock 93.76 0-44.0 75.0-90.0 71.0-75.0 68.0-71.0 2.0 1302-MSWLF-CDLF-1998 MW-9 1990s 35.47706 80.51740 Saprolite/PWR 51.15 -- 39.0-49.0 37.0-49.0 35.0-37.0 2.0 1302-MSWLF-CDLF-1998 MW-A 9/16/1994 35.47289 80.52524 Saprolite/PWR 50.42 33.0-48.0 31.0-49.9 29.0-31.0 2.0 1302-MSWLF-CDLF-1998 MW-B 9/16/1994 35.47165 80.52081 Saprolite/PWR 15.22 2.5-12.5 2.0-13.0 1.0-2.0 2.0 1302-MSWLF-CDLF-1998 MW-C 9/16/1994 35.47042 80.52556 Saprolite/PWR 18.50 2.5-15.0 2.0-15.0 1.0-2.0 2.0 1302-MSWLF-CDLF-1998 MW-D 9/16/1994 35.47021 80.52394 Saprolite/PWR 30.15 18.0-28.0 16.0-28.0 14.0-16.0 2.0 1302-MSWLF-CDLF-1998 MW-E Rep 4/9/1996 35.46983 80.52212 PWR/Bedrock 45.65 28.0-43.0 25.0-45.0 23.0-25.0 2.0 1302-MSWLF-CDLF-1998 MW-E deep 9/2/1999 35.46974 80.52220 Bedrock 59.57 41.0-56.0 39.0-56.0 37.0-39.0 2.0 1302-MSWLF-CDLF-1998 MW-F 9/15/1994 35.47050 80.52040 Saprolite/PWR 20.08 3.0-18.0 1.5-18.0 0.5-1.5 2.0 1302-MSWLF-CDLF-1998 MW-G 9/15/1994 35.47290 80.52121 Saprolite/PWR 20.25 3.0-18.0 1.5-18.0 0.5-1.5 2.0 1302-MSWLF-CDLF-1998 MW-H 9/3/1999 35.46861 80.52310 Saprolite/PWR 32.70 19.5-29.5 17.5-29.5 15.5-17.5 2.0 1302-MSWLF-CDLF-1998 MW-H deep 9/2/1999 35.46851 80.52317 Bedrock 59.67 41.0-56.0 39.0-56.0 37.0-39.0 2.0 1302-MSWLF-CDLF-1998 MW-1 9/3/1999 35.46928 80.52076 Saprolite/PWR 65.18 47.0-62.0 45.0-62.0 43.0-45.0 2.0 1302-MSWLF-CDLF-1998 MWA 9/3/1999 35.47403 80.52647 Saprolite/PWR 34.90 29.0-32.0 28.0-32.0 25.0-28.0 2.0 1302-MSWLF-CDLF-1998 MW-K 9/3/1999 35.46978 80.52467 Saprolite/PWR 36.08 18.0-33.0 16.0-33.0 14.0-16.0 2.0 1302-MSWLF-CDLF-1998 MW-L 9/2/1999 35.46771 80.52168 Saprolite/PWR 26.90 14.0-24.0 12.0-24.0 10.0-12.0 2.0 1302-MSWLF-CDLF-1998 MW-Ldeep 6/3/2003 35.46778 80.52168 Bedrock 65.20 0-48.0 53.0-63.0 50.0-63.0 47.0-50.0 2.0 1302-MSWLF-CDLF-1998 MW-M 6/2/2003 35.46743 80.52026 PWR 39.80 -- 21.0-36.0 18.0-36.0 16.0-18.0 2.0 1302-MSWLF-CDLF-1998 I MW-X 1 12/1/1993 1 35.47225 1 80.52664 1 Saprolite/PWR 1 31.79 -- 20.0-30.0 18.0-30.0 1 16.0-18.0 2.0 Notes. 1. BTOC - Below Top of Casing 2. bgs - Below Ground Surface 3. PWR - Partially Weathered Rock Smith Page 1 of 1 July 2023 Table 2 Groundwater Elevations April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Facility Permit Number Monitoring Well Code MW-1 Top.ofaCa.,.ing El v ti (AMSQ 701.37 689.22 688.97 688.94 Groundwater 688.76 Elevation (AMSQ 689.10 688.48 688.76 689.90 689.49 MW-3 670.37 655.97 654.26 657.31 655.78 657.56 655.20 656.52 659.53 658.47 MW-3 deep 668.33 658.99 657.48 660.27 659.10 661.06 658.68 660.09 660.36 660.70 MW-A 746.80 703.28 702.60 704.73 704.39 703.58 703.50 702.71 703.45 707.23 MW-B 681.66 679.06 678.86 678.89 678.77 679.21 676.88 678.38 679.68 679.20 MW-C 694.98 688.33 682.70 688.74 683.29 689.03 682.63 683.75 690.09 682.94 MW-D 720.28 692.78 691.53 694.50 693.39 693.40 692.14 691.86 695.70 697.52 MW-E Rep 712.58 683.00 680.93 684.97 683.18 682.85 678.66 682.76 683.49 688.28 MW-E deep 705.70 672.71 670.65 674.67 672.88 672.51 675.20 672.38 673.22 677.97 MW-F 681.06 672.66 671.66 672.46 670.61 672.84 669.57 671.73 674.33 672.97 MW-G 695.19 685.68 685.68 685.62 685.65 685.82 685.37 685.50 686.41 685.96 MW-H 699.23 672.67 671.03 674.90 673.29 672.50 671.87 671.92 672.52 671.88 MW-H deep 699.17 672.32 670.62 674.52 672.96 672.16 671.66 671.85 672.22 677.41 1302-MSWLF- MW-1 709.30 664.00 662.17 665.50 663.72 665.28 662.95 664.52 665.01 667.47 CDLF-1998 MW-1 728.47 699.10 696.77 699.52 698.05 699.37 697.55 698.15 700.16 700.85 MW-K 702.91 680.25 676.84 681.21 678.35 680.15 677.33 678.94 680.58 683.30 MW-L 669.54 656.54 654.39 657.90 655.72 657.89 655.10 655.62 658.22 659.66 MW-L deep 672.51 658.15 656.14 659.50 657.51 660.49 656.95 658.43 660.66 661.16 MW-M 668.49 649.52 648.01 649.94 648.79 650.25 648.36 649.12 651.25 650.93 MW-X 710.28 698.02 696.14 698.64 696.83 698.46 695.93 696.67 700.50 697.07 CD -Is (background well) 755.00 730.42 728.55 731.10 729.77 730.00 728.89 730.00 730.05 726.89 CD-1d(background well) 757.40 730.20 728.33 730.89 729.57 729.82 728.67 729.57 729.88 730.51 CD-4 Rep 739.15 729.45 728.68 730.45 728.90 730.38 728.00 729.24 731.83 728.50 CD-6 741.40 707.64 706.65 708.75 708.44 -- -- -- -- -- AMW-ls 725.30 674.06 672.00 676.07 674.31 673.89 671.16 673.75 674.20 679.25 AMW-Id 725.80 673.85 671.73 675.85 674.09 673.67 672.91 672.60 674.05 679.12 AMW-2s 694.50 671.07 669.09 672.97 671.18 671.15 670.19 670.72 671.41 675.55 AMW-2d 1 694.50 1 671.60 1 669.65 1 673.53 1 671.82 1 671.60 1 670.74 1 671.20 1 671.72 1 676.32 Notes: 1. AMSL - Above Mean Sea Level 2. NS - Not Sampled 3. CD-6 was abandoned on February 2, 2017, as part of the Phase 3 C&D Landfill expansion. Smith Page 1 of 2 July 2023 Table 2 Groundwater Elevations April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Sampling Event 1 0• 020 020 Facility Permit Number Monitoring Well Code MW-1 Top of Casing Elevation 701.37 689.32 689.50 689.38 Groundwater Elevation 689.34 (AMSQ 688.90 689.22 688.62 689.33 MW-3 670.37 655.49 657.93 657.49 659.52 655.67 657.37 654.22 656.86 MW-3 deep 668.33 657.83 659.88 659.66 662.05 658.27 659.67 656.71 659.04 MW-A 746.80 706.60 707.17 707.06 709.50 708.06 706.58 705.20 704.50 MW-B 681.66 679.09 679.35 679.18 679.26 678.99 679.09 678.12 679.16 MW-C 694.98 683.70 687.16 685.43 688.80 684.23 689.01 683.49 689.37 MW-D 720.28 695.28 697.33 696.64 700.18 696.95 696.01 694.40 694.78 MW-E Rep 712.58 684.95 687.49 686.55 687.78 685.46 683.90 682.05 683.05 MW-E deep 705.70 674.68 676.69 676.27 674.75 675.19 673.63 671.77 672.77 MW-F 681.06 671.84 672.76 672.87 672.86 671.51 672.94 670.77 673.21 MW-G 695.19 685.89 685.98 685.86 686.13 685.41 685.84 685.22 685.72 MW-H 699.23 675.01 676.86 676.70 678.80 675.79 674.00 672.07 672.58 MW-H deep 699.17 674.71 676.56 676.22 678.47 675.40 673.54 671.78 672.22 1302-MSWLF- MW-1 709.30 663.96 666.42 665.85 668.35 664.47 665.10 662.41 664.69 CDLF-1998 MW-1 728.47 699.42 700.94 700.83 702.03 698.45 701.49 699.47 701.43 MW-K 702.91 679.61 682.86 682.20 685.21 681.31 682.25 679.76 682.49 MW-L 669.54 655.92 659.18 658.18 660.82 656.24 657.99 654.61 657.80 MW-L deep 672.51 657.73 660.93 659.90 662.40 658.13 659.56 656.47 659.37 MW-M 668.49 648.49 649.83 649.69 651.48 647.99 649.64 647.16 650.31 MW-X 710.28 698.30 699.85 700.62 702.53 699.69 701.16 698.37 700.78 CD -Is (background well) 755.00 731.53 733.46 733.75 735.38 733.80 733.86 732.32 733.51 CD -Id (background well) 757.40 731.32 733.22 733.48 735.15 733.60 733.65 732.10 733.28 CD-4 Rep 739.15 729.50 730.74 730.52 731.93 729.58 731.11 729.11 731.70 CD-6 741.40 -- -- -- -- -- -- -- -- AMW-1s 725.30 677.01 678.00 677.59 680.19 676.56 674.88 673.04 673.95 AMW-1d 725.80 675.80 677.82 677.33 680.09 676.32 674.69 672.80 673.71 AMW-2s 694.50 672.69 674.80 674.43 676.42 673.20 672.30 670.01 671.29 AMW-2d 1 694.50 1 674.40 1 675.40 1 675.00 1 677.21 1 673.95 1 672.68 1 670.65 1 671.72 Notes: 1. AMSL - Above Mean Sea Level 2. NS - Not Sampled 3. CD-6 was abandoned on February 2, 2017, as part of the Phase 3 C&D Landfill expansion. Smith Page 2 of 2 July 2023 Table 3 Summary of Groundwater Velocities April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Sampling .. ,. 0. Facility Perm it Number Monitoring Well Code MW-A Hydraulic Conductivity feet/day (cm/s) 19.5 Effective Porosity 0.050 Gradient 0.0151 Average Linear Velocity feet/day 5.88E+00 G7r.denl 0.0165 Average Linear Velocity feet/day 6.42E+00 Gradient 0.0156 Average Linear Velocity feet/day 6.09E+00 Gradient 0.0172 A erage Linear Velocity feet/day 6.73E+00 Gradient 0.0150 Average Linear Velocity feet/day 5.86E+00 Gradient 0.0180 Average Line r Velocity feet/day 7.01E+00 6.88E-03 MW-B 11.08 0.150 0.0173 1.28E+00 0.0170 1.25E+00 0.0185 1.36E+00 0.0183 1.35E+00 0.0174 1.29E+00 0.0191 1.41E+00 3.91E-03 MW-C 10.94 0.050 0.0166 3.63E+00 0.0221 4.84E+00 0.0178 3.89E+00 0.0234 5.13E+00 0.0162 3.54E+00 0.0233 5.09E+00 3.86E-03 MW-D 17.71 0.050 0.0100 3.54E+00 0.0105 3.73E+00 0.0097 3.45E+00 0.0105 3.71E+00 0.0097 3.43E+00 0.0109 3.86E+00 6.25E-03 1302-MSWLF- MW-E Rep 174.24 0.050 0.0135 4.71E+01 0.0144 5.03E+01 0.0132 4.59E+01 0.0141 4.93E+01 0.0138 4.82E+01 0.0166 5.79E+01 CDLF-1998 6.15E-02 MW-F 13.68 0.150 0.0180 1.64E+00 0.0182 1.66E+00 0.0190 1.73E+00 0.0199 1.81E+00 0.0181 1.65E+00 0.0200 1.82E+00 4.83E-03 MW-G 16.56 0.150 0.0235 2.60E+00 0.0226 2.49E+00 0.0239 2.64E+00 0.0232 2.56E+00 0.0233 2.57E+00 0.0240 2.65E+00 5.84E-03 MW-1 10.94 0.050 0.0242 5.30E+00 0.0233 5.09E+00 0.0248 5.43E+00 0.0241 5.28E+00 0.0241 5.26E+00 0.0244 5.34E+00 3.86E-03 CD-1s 0.024 0.020 0.0173 2.07E-02 0.0181 2.17E-02 0.0178 2.14E-02 0.0189 2.26E-02 0.0172 2.06E-02 0.0195 2.34E-02 (background well) 8.47E-06 Notes: 1. Blanks indicate no data. 2. Hydraulic conductivity and effective porosity values are estimated from previously performed slug tests and grain size analyses. 3. The gradient and linear velocity values shown for CD-1s are based on the average of all the listed wells. 4. The gradient and linear velocity values shown for MW-A are based on the average of MW-B, -C, -D, -E, and -F. CDIIA Smith Page 1 of 3 July 2023 Table 3 Summary of Groundwater Velocities April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Facility Perm it Number Monitoring Well Code MW-A Hydraulic Conductivity feet/day (cm/s) 19.5 Effective Porosity 0.050 Gradient 0.0161 Average Linear Velocity feet/day 6.26E+00 Gr.d,.ntT 0.0139 Average Linear Velocity feet/day 5.43E+00 Gradient 0.0178 Average Linear Velocity feet/day 6.95E+00 Gradient 0.0182 A erage Linear Velocity feet/day 7.08E+00 Gradient 0.0170 Average Linear Velocity feet/day 6.62E+00 Gradient 0.0175 Average Line r Velocity feet/day 6.84E+00 6.88E-03 MW-B 11.08 0.150 0.0174 1.28E+00 0.0170 1.25E+00 0.0200 1.48E+00 0.0197 1.45E+00 0.0199 1.47E+00 0.0199 1.47E+00 3.91E-03 MW-C 10.94 0.050 0.0211 4.61E+00 0.0148 3.25E+00 0.0270 5.91E+00 0.0254 5.57E+00 0.0222 4.86E+00 0.0240 5.26E+00 3.86E-03 MW-D 17.71 0.050 0.0103 3.66E+00 0.0074 2.61E+00 0.0092 3.28E+00 0.0108 3.82E+00 0.0094 3.32E+00 0.0099 3.52E+00 6.25E-03 1302-MSWLF- MW-E Rep 174.24 0.050 0.0133 4.63E+01 0.0133 4.64E+01 0.0126 4.40E+01 0.0144 5.03E+01 0.0131 4.57E+01 0.0137 4.76E+01 CDLF-1998 6.15E-02 MW-F 13.68 0.150 0.0182 1.66E+00 0.0171 1.56E+00 0.0202 1.84E+00 0.0204 1.86E+00 0.0202 1.85E+00 0.0201 1.83E+00 4.83E-03 MW-G 16.56 0.150 0.0234 2.59E+00 0.0230 2.54E+00 0.0215 2.38E+00 0.0240 2.65E+00 0.0249 2.74E+00 0.0251 2.77E+00 5.84E-03 MW-1 10.94 0.050 0.0243 5.31E+00 0.0236 5.17E+00 0.0220 4.81E+00 0.0248 5.43E+00 0.0257 5.63E+00 0.0259 5.68E+00 3.86E-03 CD-1s 0.024 0.020 0.0180 2.16E-02 0.0163 1.95E-02 0.0188 2.26E-02 0.0197 2.37E-02 0.0190 2.29E-02 0.0195 2.34E-02 (background well) 8.47E-06 Notes: 1. Blanks indicate no data. 2. Hydraulic conductivity and effective porosity values are estimated from previously performed slug tests and grain size analyses. 3. The gradient and linear velocity values shown for CD-1s are based on the average of all the listed wells. 4. The gradient and linear velocity values shown for MW-A are based on the average of MW-B, -C, -D, -E, and -F. CDIIA Smith Page 2 of 3 July 2023 Table 3 Summary of Groundwater Velocities April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Date:Sampling Facility Perm it Number Monitoring Well Code MW-A Hydraulic Conductivity feet/day (cm/s) 19.5 Effective Poros ity 0.050 Gradient 0.0179 Average Linear Velocity feet/day 6.98E+00 Gradien t 0.0193 Average Linear Velocity feet/day 7.53E+00 Gradient 0.0170 Average Linear Velocity feet/day 6.64E+00 Grad, �nt 0.0179 Average Linear Velocity feet/day 6.98E+00 Gradient 0.0154 AveVr:ge,.Linyear 'o it feet/day 6.00E+00 6.88E-03 MW-B 11.08 0.150 0.0216 1.60E+00 0.0212 1.56E+00 0.0196 1.45E+00 0.0193 1.43E+00 0.0181 1.34E+00 3.91E-03 MW-C 10.94 0.050 0.0230 5.03E+00 0.0271 5.92E+00 0.0195 4.27E+00 0.0241 5.28E+00 0.0168 3.68E+00 3.86E-03 MW-D 17.71 0.050 0.0089 3.14E+00 0.0111 3.93E+00 0.0110 3.90E+00 0.0103 3.64E+00 0.0093 3.28E+00 6.25E-03 1302-MSWLF- MW-E Rep 174.24 0.050 0.0145 5.05E+01 0.0154 5.38E+01 0.0151 5.27E+01 0.0154 5.38E+01 0.0143 4.98E+01 CDLF-1998 6.15E-02 MW-F 13.68 0.150 0.0216 1.97E+00 0.0218 1.99E+00 0.0198 1.80E+00 0.0203 1.85E+00 0.0184 1.68E+00 4.83E-03 MW-G 16.56 0.150 0.0258 2.85E+00 0.0254 2.80E+00 0.0252 2.78E+00 0.0248 2.74E+00 0.0252 2.78E+00 5.84E-03 MW-1 10.94 0.050 0.0269 5.90E+00 0.0263 5.75E+00 0.0261 5.72E+00 0.0257 5.62E+00 0.0260 5.69E+00 3.86E-03 CD-1s 0.024 0.020 0.0200 2.40E-02 0.0209 2.51E-02 0.0192 2.30E-02 0.0197 2.37E-02 0.0179 2.15E-02 (background well) 8.47E-06 Notes: 1. Blanks indicate no data. 2. Hydraulic conductivity and effective porosity values are estimated from previously performed slug tests and grain size analyses. 3. The gradient and linear velocity values shown for CD-1s are based on the average of all the listed wells. 4. The gradient and linear velocity values shown for MW-A are based on the average of MW-B, -C, -D, -E, and -F. CDIIA Smith Page 3 of 3 July 2023 Table 4 April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Sampling Event: No. 40 No. 41 No. 42 No. 43 CD -Is well) 6.00 115 15.5 3.99 281 7 5.73 132 15.0 3.84 519 3 5.91 103 15.7 3.45 245 4 5.05 113 16.1 4.49 360 6 CD-ld(background well) 5.97 123 16.4 4.84 186 13 5.81 136 14.5 6.96 507 7 6.06 115 15.8 4.50 210 20 5.34 124 15.9 3.10 330 8 CD-4 Rep 6.29 495 13.5 2.75 70.4 4 6.06 231 16.4 3.19 31.2 3 6.90 242 14.2 2.68 -54 28 5.28 209 17.0 1.35 79 3 CD-6 5.79 372 17.4 2.04 142 5 5.90 244 16.3 3.92 111 >800 6.20 271 16.9 1.50 -48 23 5.62 292 16.9 1.38 -4 29 AMW-Is 4.58 243 14.9 2.00 592 6 5.80 443 16.0 2.68 253 3 6.07 224 16.5 3.77 222 8 5.02 297 18.8 1.65 377 6 AMW-Id 5.94 518 15.9 1.78 -52 16 6.11 1,004 15.8 2.55 -42 5 6.13 477 18.1 1.51 -28 4 5.00 583 13.3 1.73 199 8 AMW-2s 5.07 160 14.2 3.50 562 6 5.92 173 16.2 4.19 187 3 5.78 154 15.8 3.22 51 7 4.92 164 16.4 3.38 235 8 AMW-2d 5.77 230 15.2 2.51 391 1 6.36 260 17.2 3.90 158 2 6.04 229 15.9 2.69 88 1 5.52 356 16.5 2.15 346 4 MW-1 6.29 2,379 14.9 2.69 -19 6 6.31 1,743 15.5 1.94 21 7 8.05 1,515 15.4 3.48 94 4 6.13 1,812 16.2 1.03 34 8 MW-3 5.42 166 17.6 2.29 260 14 6.20 178 19.5 3.85 166 3 6.04 167 16.5 3.18 101 1 5.52 246 20.6 3.50 439 5 MW-3deep 7.49 368 20.5 1.50 -198 4 7.63 387 19.5 1.67 -165 3 7.48 362 15.6 2.26 -130 0 NS NS NS NS NS NS MW-A 4.78 390 15.6 2.34 27 2 5.30 402 15.5 1.41 29 3 5.48 394 16.1 1.27 -55 1 4.77 412 16.5 1.65 205 4 MW-B 6.70 1,485 13.0 3.03 -68 9 6.00 833 16.9 3.91 -51 6 8.32 976 14.0 3.73 53 17 6.44 1,085 17.5 2.11 -79 9 1302-MSWLF- MW-C 5.94 162 12.9 3.89 -181 8 5.21 186 16.7 1.73 153 37 6.50 126 14.0 3.48 -78 6 5.52 243 17.4 2.58 49 7 CDLF-1998 MW-D 5.86 745 16.8 3.66 15 3 5.19 520 16.5 2.60 85 14 7.26 617 16.3 1.23 -84 4 5.43 627 16.5 1.51 69 6 MW-E Rep 6.04 1,095 17.3 3.61 -38 9 6.10 1,076 16.2 1.25 -36 3 6.27 1,088 17.1 1.40 -59 1 5.59 1,139 17.6 3.79 48 5 MW-E deep 6.41 1,027 18.4 0.88 -100 15 6.44 979 16.2 1.21 -71 5 6.63 1,017 17.5 3.08 -95 9 5.89 959 18.1 2.30 -39 8 MW-F 6.51 1,270 13.9 3.58 -58 3 6.61 1,134 15.5 2.71 -136 3 8.12 796 14.4 2.65 -47 6 6.25 1,141 16.6 1.23 -71 6 MW-G 6.31 2,445 13.9 2.66 -78 6 6.32 1,372 16.8 2.28 -135 0 7.96 1,671 15.0 2.40 49 12 6.07 2,320 17.6 1.09 -80 1 MW-H 5.51 174 15.0 2.71 136-5 10 5.15 203 15.3 0.81 168 43 6.06 162 14.2 5.40 204 38 5.53 211 15.3 1.63 118 59 MW-H deep 6.12 285 15.4 1.62 137 4 5.72 280 15.3 0.64 146 4 6.82 272 14.9 4.99 145 18 5.91 337 15.0 2.21 105 16 MW-1 5.64 134 15.3 2.82 132 3 5.13 128 15.2 0.76 104 3 6.86 127 15.0 4.40 164 7 5.65 164 15.0 1.35 68 9 MW-1 6.54 402 14.9 3.13 137 7 6.48 274 14.3 0.38 210 7 6.92 265 14.8 4.20 28 58 6.05 311 14.8 2.65 21 36 MW-K 5.56 239 14.9 1.50 95 5 4.93 253 15.2 3.43 167 6 7.03 208 15.0 4.34 21 14 5.47 283 15.4 1.89 149 21 MW-L 5.29 97 17.5 4.15 131 3 5.92 93 18.5 3.80 89 4 5.80 95 14.2 3.66 192 2 5.11 146 18.1 3.49 486 5 MW-L deep 6.61 341 17.5 4.79 190 3 5.49 395 15.8 0.80 155 2 6.82 209 15.0 3.88 149 2 NS NS NS NS NS NS MW-M 6.31 334 15.4 1.49 116 4 5.67 334 15.7 0.49 151 10 7.97 320 15.3 4.02 -3 8 NS NS NS NS NS NS MW-X 6.19 341 13.5 3.23 140 4 5.03 234 15.3 2.53 342 3 7.19 210 13.9 3.98 20 6 5.94 275 15.3 1.62 78 2 Surface Water Sample Lot 1302-MSWLF- SW-1 DRY 6.83 840 16.0 1.04 -54 0 6.99 342 15.4 4.99 360.3 >800 DRY CDLF-1998 SW-2 6.89 520 24.7 2.19 4 7 5.55 7SS 15.4 1.34 15S 7 6.80 241 15.6 3.51 181 590 DRY Notes: 1. NS - Not Sampled 2. µs/cm- Microsiemens per centimeter 3. mg/L- milligrams per liter 4. ORP - Oxidation -Reduction Potential S. Turb. - Turbidity; NTUs - Nephelometric Turbidity Units 6. mVs- millivolts 7. DO - Dissolved Oxygen 8. S.U. -Standard Units 9. Temp. - Temperature; Deg. C - Degrees Celsius 10. MW-3 deep, -L deep, -and -M are sampled annually during the spring event. Smith Page 1 of 5 June 2023 Table 4 April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Sampling Event: No. 44 No. 45 No. 46 No. 47 • = m�� • • ��m�� • • ��m�� • • ��m�� r. CD -Is (background well) 5.32 117 15.7 1.69 274.6 8 5.35T159 16.1 1.87 57.7 8.09 6.2 110 31.5 3.8 124.1 5 6.3 110 16.7 5.6 38.6 9 (background well) 5.46 129 14.3 1.51 257.2 4 5.6417.3 2.85 36.9 2.89 6.2 117 18.3 2.9 54.2 11 6.1 116 15.8 3.6 25.1 10 CD-4 Rep 5.65 211 14.3 5.00 29.0 9 5.9415.9 1.31 218.4 5.19 6.0 156 16.3 4.5 50.7 153 6.0 139 12.5 5.3 48.9 101 CD-6 AMW-1s 5.46 258 15.7 1.54 148.6 0 5.1716.7 2.39 226.6 0.87 5.8 218 18.0 0.5 566.1 2 5.9 219 14.5 0.7 510.5 0 AMW-ld 5.92 496 17.9 1.59 -6.7 4 5.9423.2 3.51 158.9 4.24 6.0 429 20.4 3.2 21.3 109 6.0 412 14.6 0.5 1.8 10 AMW-2s 5.79 172 18.9 1.55 48.2 4 4.4017.2 4.42 280.1 4.39 5.8 154 22.4 2.2 162.6 4 5.8 144 13.7 2.9 101.3 2 AMW-2d 5.98 264 18.5 1.47 37.0 0 5.17 258 15.5 3.20 151.0 3.79 5.9 244 22.9 0.6 13.9 2 6.0 274 13.2 0.9 65.3 0 MW-1 5.49 1,545 15.7 3.44 53.2 7 6.28 1,533 15.0 2.44 210.9 10.0 6.4 1,385 15.2 3.4 75.4 47 6.4 1,355 12.4 2.0 224.6 7 MW-3 5.61 179 17.9 1.75 229.6 1 5.86 172 17.3 1.60 325.4 1.36 6.0 166 22.3 3.7 130.6 2 6.0 178 15.3 2.8 48.8 8 MW-3deep 6.60 381 17.2 4.03 95.7 4 7.68 360 17.3 2.29 67 0.20 7.6 341 24.1 0.4 109.8 2 NS NS NS NS NS NS MW-A 5.23 412 15.6 1.31 140.9 3 5.06 423 16.8 3.21 70.1 4.42 5.6 373 21.2 0.4 63.5 1 5.7 372 9.3 0.6 32.4 1 MW-B 5.53 991 14.2 4.71 -18.3 22 6.53 904 16.1 1.94 -74.6 57.0 6.6 701 18.5 3.4 -18.7 31 6.7 795 9.3 1.3 -64.8 18 1302-MSWLF- MW-C 5.40 103 14.0 4.92 34.6 8 5.55 145 15.7 3.71 320.5 9.17 5.7 109 15.0 5.4 64.2 225 5.8 102 12.3 4.8 162.6 11 CDLF-1998 MW-D 5.98 824 16.9 5.10 10.0 9 5.73 530 15.0 2.33 201.5 21.0 5.9 490 17.2 2.9 62.9 23 6.2 858 15.1 1.1 35.4 1 MW-E Rep 6.31 1,117 18.1 1.35 -50.7 8 6.33 1,116 18.0 2.48 65.1 4.25 6.4 999 23.7 1.3 -26.2 11 6.2 1,012 13.4 0.3 -16.1 4 MW-E deep 6.34 929 18.1 1.65 -78.5 9 5.59 890 17.5 2.45 151.8 8.61 6.5 857 29.0 0.4 -83.5 5 6.3 1,031 11.6 0.4 -56.2 4 MW-F 5.23 911 14.6 3.59 -16.3 5 6.38 934 15.0 2.03 -82.3 20.0 6.5 526 14.9 3.4 -69.3 20 6.1 481 11.6 2.5 11.0 4 MW-G 5.32 1,733 15.5 3.78 -60.0 13 6.17 1,760 16.2 3.20 -85.7 48.0 6.3 1,035 15.9 2.60 -38.7 49 6.1 586 11.3 2.10 -2.8 15 MW-H 4.50 174 14.9 4.17 124.6 43 5.80 162 13.9 1.57 272.2 15.0 6.2 159 14.8 5.3 46.8 49 6.5 242 14.7 9.9 -2.6 10 MW-H deep 5.47 276 15.8 4.80 66.7 7 6.12 264 13.7 1.52 332.9 3.17 6.5 267 15.2 3.0 47.0 28 6.2 165 14.1 5.8 -8.3 173 MW-1 4.56 136 15.7 5.05 119.1 7 5.79 126 13.7 1.15 251.2 7.00 6.3 155 15.5 3.9 26.1 29 6.1 143 14.8 4.5 -2.9 11 MW-1 6.47 254 14.8 4.87 111.6 18 6.41 256 13.6 2.66 428.9 28.0 6.2 243 15.9 3.0 104.2 97 6.6 241 14.1 3.3 143.7 67 MW-K 4.53 215 15.4 5.03 123.1 8 5.72 218 14.2 1.30 327.3 11.0 6.0 192 15.8 4.6 61.8 27 6.0 173 15.1 3.9 129.8 5 MW-L 4.97 100 17.8 1.70 128.9 3 5.65 104 15.8 1.61 360.8 2.07 5.9 95 18.8 1.2 141.2 4 5.8 86 12.5 2.7 100.4 3 MW-L deep 6.17 223 16.5 1.58 72.4 0 6.54 211 15.7 2.63 211 0.61 6.7 207 24.0 0.3 146.7 3 NS NS NS NS NS NS MW-M 6.24 304 16.0 5.29 55.4 4 6.30 305 14.7 2.46 326 14.0 6.6 286 16.1 3.1 91.5 18 NS NS NS NS NS NS MW-X 6.39 202 14.3 5.19 82.2 6 6.18 207 14.1 1.45 466.4 5.88 6.4 195 15.0 4.0 102.1 20 6.3 185 13.6 3.2 167.5 1 Surface Water Sample Lot 1302-MSWLF- SW-1 6.73 508 21.1 5.13 11.0 4 DRY DRY 7.6 336 6.2 10.1 -73.4 18 CDLF-1998 SW-2 5.86 528 20.1 5.23 36.7 7 DRY 7.5 306 21.1 4.1 70.2 50 7.2 267 6.4 9.8 21.1 19 Notes: 1. NS - Not Sampled 2. µs/cm- Microsiemens per centimeter 3. mg/L- milligrams per liter 4. ORP - Oxidation -Reduction Potential S. Turb. - Turbidity; NTUs - Nephelometric Turbidity Units 6. mVs- millivolts 7. DO - Dissolved Oxygen 8. S.U. -Standard Units 9. Temp. - Temperature; Deg. C - Degrees Celsius 10. MW-3 deep, -L deep, -and -M are sampled annually during the spring event. 11. (--) CD-6 was abandoned on February 2, 2017, as part of the Phase 3 C&D Landfill expansion. Smith Page 2 of 5 June 2023 Table 4 April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Sampling Event: No. 48 No. 49 No. r No. 51 .. .• ,• ,. 9/21-25/2020 • = m�� • • ��m�� • • ��m�� • • ��m�� r. CD -Is (background well) 5.26 116 15.0 1.82 242.4 7 5.65 100 15.8 1.49 197.0 3 6.1 122 20.3 4.3 -32.4 9 5.8 125 17.1 6.00 50.1 9 CD-ld (background well) 5.67 114 18.3 1.61 183.2 9 5.88 102 16.0 1.84 190.7 2 6.2 118 20.4 2.4 31.5 3 6.0 120 17.1 4.18 7 ..4 10 CD-4 Rep 5.98 191 14.7 2.46 48.4 10 5.18 111 15.3 1.34 88.3 2 6.0 229 14.7 5.2 -26.1 43 6.1 202 18.3 0.51 -40.1 12 CD-6-- -- -- -- -- -- -- -- -- -- -- -- -- -- AMW-1s 5.23 205 15.5 1.80 90.3 2 6.10 112 17.1 0.84 228.1 2 5.8 211 20.2 0.8 92.4 4 5.6 195 16.3 0.42 61.3 7 AMW-ld 5.56 372 17.9 1.71 91.1 9 6.70 227 17.8 1.04 173.0 1 5.9 378 19.6 2.5 -43.2 9 5.8 396 16.5 0.30 27.9 39 AMW-2s 5.24 154 16.2 1.74 201.1 7 5.60 128 15.0 1.06 197.2 3 5.8 145 17.1 2.2 24.1 3 5.7 151 16.2 2.97 60.3 7 AMW-2d 6.08 256 20.2 2.55 165.2 9 6.10 216 15.3 1.44 198.1 4 6.0 260 16.7 0.5 -22.9 1 5.8 269 16.5 0.37 12.7 8 MW-1 6.51 140 15.9 1.52 22.4 5 6.02 1,396 14.5 1.27 105.3 13 6.3 1,157 14.9 1.9 -35.8 5 6.3 1,411 16.5 0.23 24.9 8 MW-3 5.47 170 15.2 1.81 114.5 6 5.79 156 18.4 1.22 208.6 2 5.9 178 17.9 3.1 -16.5 0 5.7 189 17.0 4.75 30.8 9 MW-3deep 6.98 343 16.0 1.76 17.9 8 NS NS NS NS NS NS 7.5 339 18.2 0.5 -45 3 NS NS NS NS NS NS MW-A 5.27 449 13.7 1.91 76.7 2 5.6 353 16.9 1.56 54.4 2 5.6 380 16.3 0.2 -47.8 4 5.4 384 16.8 0.59 -18.4 7 MW-B 6.67 784 16.0 1.05 -64.5 5 6.25 687 15.7 2.53 -4.1 6 6.7 694 14.4 3.1 -36.5 34 6.5 861 18.8 0.22 -59.0 13 1302-MSWLF- MW-C 5.74 98 15.0 1.37 104.3 3 5.85 657 15.7 0.90 38.5 29 5.5 87 14.7 7.0 64.2 11 5.8 354 18.6 0.31 11.7 9 CDLF-1998 MW-D 5.92 620 13.8 1.93 36.4 3 5.44 582 14.6 1.29 77.3 6 6.1 637 15.6 4.4 -29.3 3 5.8 665 16.9 0.32 17.9 8 MW-E Rep 6.05 984 17.3 1.68 -1.9 2 6.58 969 18.1 0.77 26.5 3 6.3 1,153 18.3 0.5 -25.2 1 6.2 152 17.8 0.29 -0.8 9 MW-E deep 6.29 1,123 16.4 1.88 -30.9 9 NA NA NA NA NA NA 6.3 1,201 18.3 0.6 -21.8 4 6.3 1,158 17.9 0.27 -36.8 10 MW-F 6.57 478 14.3 1.55 -69.4 5 6.14 886 14.5 1.31 -17.9 4 6.6 820 14.4 6.6 -33.7 4 6.3 1,077 16.3 0.56 -56.9 8 MW-G 6.39 1,576 15.0 2.28 -82.9 8 6.02 1,596 15.4 1.81 -24.9 29 6.3 1,266 14.7 1.2 -33.1 31 6.2 1,684 18.1 0.29 -84.5 14 MW-H 6.23 161 15.0 4.74 118.5 5 5.18 153 13.4 1.35 122.1 20 5.9 145 15.0 3.6 76.2 84 5.6 142 18.0 4.10 59.5 13 MW-H deep 6.47 261 16.2 2.75 95.2 6 5.61 254 13.4 1.51 114.6 1 6.6 237 15.6 7.5 77.9 8 5.9 239 15.7 2.15 55.3 13 MW-1 6.15 130 15.8 5.96 115.9 6 5.78 131 13.3 1.69 91.4 15 6.1 125 16.0 7.1 80.0 7 5.8 122 16.0 7.38 56.5 9 MW-1 5.68 245 16.1 2.45 154.5 9 5.89 249 13.4 1.37 84.4 27 6.8 243 14.6 5.4 -25.4 38 6.4 263 15.1 4.61 39.7 10 MW-K 6.06 181 15.9 2.45 140.0 4 5.30 217 13.9 1.25 111.1 7 6.1 173 14.6 5.3 -32.0 22 5.6 182 16.2 2.84 57.0 12 MW-L 5.12 91 14.4 1.87 142.9 7 5.57 85 16.2 1.54 240.6 2 5.8 91 15.1 2.0 -15.8 2 5.6 93 16.6 2.79 50.4 14 MW-L deep 6.10 203 13.7 1.90 160.7 1 5 NS NS NS NS NS NS 6.9 209 15.5 4.6 -9.6 0 NS NS NS NS NS NS MW-M 6.53 287 15.7 2.84 324.7 2 NS NS NS NS NS NS 6.5 246 15.5 4.0 30.8 37 NS NS NS NS NS NS MW-X 6.28 181 14.7 1.33 137.0 4 5.75 186 13.8 1.49 67.1 1 6.3 179 16.0 4.1 75.2 9 6.0 186 16.3 0.41 78.2 5 Surface Water Sample Lot 1302-MSWLF- SW-1 7.17 357 18.9 4.06 120.1 11 5.33 293 12.5 1.26 126.0 7 7.4 400 16.6 5.9 -18.0 13 7.3 174 31.7 10.43 23.7 32 CDLF-1998 SW-2 6.74 473 19.8 5.07 174.1 9 S.S3 302 10.9 1.23 121.7 2 7.0 374 17.2 5.1 66.9 109 7.6 130 17.1 9.91 29.6 27 Notes: 1. NS - Not Sampled 2. µs/cm- Microsiemens per centimeter 3. mg/L- milligrams per liter 4. ORP - Oxidation -Reduction Potential S. Turb. - Turbidity; NTUs - Nephelometric Turbidity Units 6. mVs- millivolts 7. DO - Dissolved Oxygen 8. S.U. -Standard Units 9. Temp. - Temperature; Deg. C - Degrees Celsius 10. MW-3 deep, -L deep, -and -M are sampled annually during the spring event. 11. (--) CD-6 was abandoned on February 2, 2017, as part of the Phase 3 C&D Landfill expansion. 12. NA - Not available. The field sheet for MW-E deep was lost by field personnel during the November 2019 sampling event. Smith Page 3 of 5 June 2023 Table 4 April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Sampling Event: ,. No. 52 No. 53 No. 54 "CD-Id s(background well) 6.10 137 14.1 3.98 -91.2 10 6.11 136 16.3 3.95 73.6 28 5.95 130 16.7 4.60 204.4 9 (background well) 6.04 119 14.1 5.04 -68.8 9 6.42 110 15.9 3.37 67.9 33 6.14 119 16.9 0.72 196.2 24 CD-4 Rep 6.12 262 11.3 0.80 -202.7 31 6.35 158 16.9 1.49 12.7 9 5.76 160 14.5 0.31 75.9 28 CD-6-- -- -- -- -- -- -- -- -- -- -- AMW-1s 5.71 191 13.9 0.67 -168.0 12 5.85 153 16.5 0.93 89.4 20 5.71 192 16.4 0.41 228.8 52 AMW-1d 5.74 382 14.1 1.06 -164.2 6 6.15 382 17.5 0.41 44.5 17 6.04 394 17.3 0.36 40.9 48 AMW-2s 5.71 149 14.0 2.86 -176.4 4 5.88 133 16.1 2.41 78.0 10 5.78 143 15.8 3.25 125.3 37 AMW-2d 5.90 277 14.2 0.41 -93.0 4 6.10 236 16.4 0.66 56.1 4 6.10 253 16.2 0.44 71.9 8 MW-1 6.28 1,411 13.8 0.79 -160.0 10 6.70 1,159 16.3 2.02 -1.6 9 6.62 1,093 16.6 1.93 -2.3 29 MW-3 5.84 180 13.7 3.65 -61.2 7 6.11 223 16.2 2.37 75.3 39 6.07 209 16.3 2.55 69.3 31 MW-3 deep 6.89 351 13.7 1.22 -162.0 9 NS NS NS NS NS NS 7.32 363 16.6 0.25 -86.6 6 MW-A 5.51 378 14.1 0.62 -184.1 9 5.98 367 16.9 0.58 17.3 17 5.61 363 16.7 0.39 64.0 4 MW-B 6.61 722 13.5 1.14 -167.8 10 6.68 676 16.1 0.45 -4.3 16 6.82 678 13.7 0.30 -66.7 28 1302-MSWLF- MW-C 5.71 107 12.8 2.41 -162.7 43 6.11 370 17.1 0.74 2.7 31 5.31 81 14.1 0.59 111.5 4 CDLF-1998 MW-D 6.07 640 13.0 3.57 -183.1 9 6.01 526 17.0 0.41 24.0 9 5.95 590 16.8 0.22 32.7 5 MW-E Rep 6.27 361 14.1 0.40 -119.2 9 6.48 1,053 18.0 0.34 29.2 31 6.40 1,078 17.8 0.26 17.9 74 MW-E deep 6.22 1,221 13.9 0.91 -152.1 14 6.65 907 18.2 0.40 -33.1 46 6.54 892 18.0 0.19 -64.2 81 MW-F 6.48 421 13.7 4.21 -143.0 10 6.63 1,022 16.1 0.75 -21.0 11 6.57 909 13.9 0.17 -71.7 11 MW-G 6.23 1,486 13.8 0.71 -114.2 9 6.72 1,490 16.5 2.31 -43.2 10 6.68 1,273 13.9 2.02 -37.1 9 MW-H 5.71 144 13.6 3.57 -194.7 9 5.84 137 15.7 1.90 82.9 19 5.75 151 15.2 1.09 17.3 10 MW-H deep 5.91 244 13.8 3.71 -123.7 7 6.09 211 15.0 1.57 73.0 5 6.02 228 15.7 1.06 182.5 19 MW-1 6.02 127 13.6 7.68 -160.0 7 5.98 95 15.3 6.18 82.8 10 5.90 103 15.9 6.63 223.1 10 MW-J 6.51 257 12.1 5.01 -202.1 7 6.71 262 17.1 1.21 44.1 5 6.68 226 16.4 3.08 57.8 3 MW-K 5.46 190 12.8 2.17 -211.1 9 5.82 190 16.2 6.98 78.4 5 5.80 234 16.0 0.89 159.7 9 MW-L 5.62 96 14.1 2.62 -91.2 8 5.95 94 15.7 3.15 75.4 46 5.37 94 14.6 3.41 230.7 305 MW-L deep 6.37 211 13.8 3.12 -58.2 7 NS NS NS NS NS NS 6.13 218 16.2 0.65 144.5 4 MW-M 6.47 271 13.7 3.04 -95.1 4 NS NS NS NS NS NS 6.41 252 15.8 1.20 109.8 40 MW-X 5.81 159 12.1 2.11 -161.5 8 6.38 170 16.2 0.80 59.0 4 6.24 175 15.1 0.22 141.1 10 Surface Water Sample Loc1 M7 1302-MSWLF- SW-1 7.22 347 11.2 7.91 -117.8 25 DRY DRY DL SW-2 7 232 1.5 8.81 -126.0 38 DRY DRY Notes: 1. NS - Not Sampled 2. µs/cm- Microsiemens per centimeter 3. mg/L- milligrams per liter 4. ORP - Oxidation -Reduction Potential S. Turb. - Turbidity; NTUs - Nephelometric Turbidity Units 6. mVs - millivolts 7. DO - Dissolved Oxygen 8. S.U. - Standard Units 9. Temp. -Temperature; Deg. C - Degrees Celsius 10. MW-3 deep, -L deep, -and -M are sampled annually during the spring event. 11. (--) CD-6 was abandoned on February 2, 2017, as part of the Phase 3 C&D Landfill expansion. Smith Page 4 of 5 June 2023 Table 4 April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Sampling Event: No. 55 rCD-ls No. 56 M(background (background well) 6.03 99 16.1 4.74 155.1 9 5.76 136 17.4 5.99 146.2 9 CD-1d well) 6.18 99 16.3 4.20 126.9 5 5.88 111 17.5 4.30 148.8 60 CD-4 Rep 6.11 129 17.7 3.09 -0.2 10 5.61 158 14.3 3.79 42.4 10 CD-6 AMW-ls 5.63 157 15.9 1.15 138.2 10 5.73 214 15.9 2.61 141.4 9 AMW-ld 6.02 266 16.1 0.77 51.7 9 6.00 406 15.9 1.59 52.9 10 AMW-2s 5.86 112 16.0 3.66 143.3 10 5.47 126 16.0 4.09 195.6 10 AMW-2d 5.93 210 16.2 0.58 36.4 1 5.66 234 16.1 1.15 99.2 2 MW-1 6.45 1,134 17.1 2.34 -4.9 8 6.26 1,395 16.3 1.45 148.9 10 MW-3 5.93 210 16.5 8.96 59.3 59 5.80 186 17.5 4.17 127.3 9 MW-3 deep NS NS NS NS NS NS 7.51 366 17.5 1.04 -36.8 9 MW-A 5.49 303 16.4 0.96 32.0 6 5.20 336 17.5 1.99 79.4 10 MW-B 6.71 612 17.3 0.60 -97.1 9 6.47 660 13.8 4.19 -35.4 10 1302-MSWLF- MW-C 5.87 292 18.0 1.08 53.2 10 5.06 80 14.0 1.26 55.8 9 CDLF-1998 MW-D 5.85 579 17.0 0.61 -5.3 10 5.96 722 16.9 1.61 11.8 9 MW-E Rep 6.49 1,013 16.1 0.79 20.9 10 6.21 992 17.8 1.77 42.5 10 MW-E deep 6.43 908 16.1 0.40 -47.8 6 6.45 854 17.9 1.32 -27.3 10 MW-F 6.55 681 16.4 0.67 -79.3 9 6.56 700 14.5 1.85 -32.3 10 MW-G 6.30 1,477 17.5 0.58 -95.3 8 6.19 857 15.3 2.48 -46.9 9 MW-H 5.75 143 16.1 2.28 159.9 10 5.80 145 15.6 6.25 155.6 21 MW-H deep 5.95 199 15.5 1.35 123.9 9 5.98 227 15.4 1.96 149.5 9 MW-1 6.17 108 16.4 4.43 162.9 6 5.65 112 15.6 6.74 151.7 10 MW-J 6.71 237 16.9 4.43 -83.3 7 6.62 213 15.3 2.76 66.7 526 MW-K 5.68 200 16.5 2.43 146.4 8 5.56 227 15.8 4.84 146.2 10 MW-L 5.79 77 16.2 3.32 163.8 250 5.71 86 14.5 3.91 126.1 143 MW-L deep NS NS NS NS NS NS 5.95 240 16.3 1.38 111.1 9 MW-M NS NS NS NS NS NS 6.27 213 15.8 2.56 109.7 29 MW-X 6.25 151 16.9 0.78 109.8 3 5.79 163 14.7 1.62 145.7 8 Surface Water Sample Loc 1302-MSWLF- SW-1 DRY 7.09 356 20.0 8.45 1 109.1 16 CDLF-1998 SW-2 DRY 6.94 367 20.0 9.44 75.7 24 Notes: 1. NS - Not Sampled 2. µs/cm- Microsiemens per centimeter 3. mg/L- milligrams per liter 4.ORP-Oxidation-Reduction Potential S. Turb. -Turbidity; NTUs - Nephelometric Turbidity Units 6. mVs - millivolts 7. DO - Dissolved Oxygen 8. S.U. - Standard Units 9. Temp. - Temperature; Deg. C - Degrees Celsius 10. MW-3 deep, -L deep, -and -M are sampled annually during the spring event. 11. (--) CD-6 was abandoned on February 2, 2017, as part of the Phase 3 C&D Landfill expansion. Smith Page 5 of 5 June 2023 Table 5a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 ,,, 1 15 1 100 1 20 20 2 1 7 1,0;=0= CD-ls 7-May-12 45.5J 3.30J 1.191 8.75J 1.12J 3.011 12.71 1 12.6B CD-ls 28-Nov-12 63.81 0.111 5.651 3.05) 11.6 1.43J 4.66J 17.1J 16.9 CD-ls 7-May-13 0.94J 2.4JB 35.6J 0.881 0.67J 4.04J 0.39J 1.78J 0.13J 6.06J 5.081 CD-ls 5-Nov-13 46.81 0.12J 3.59J 1.63J 10.2 1.35J 3.50J 18.4JB 15.4B CD-ls 6-May-14 28.81 4.14JB 1.48J 0.11J 1.03J 0.31J 3.40J 2.98JB CD-ls 4-Nov-14 28.7J 0.13J 1.311 0.06J 1.04J 0.11J 2.57JB 1,581 CD-ls 5-May-15 1.63J 29.5JB 1.33J 0.15J 1.17J 2.40J 2.75JB CD-ls 27-Oct-15 28.4J 0.801 0.39J 0.75J 0.12J 1.21J 4.19CN,J 0.15J 4.10J 3.36B-01,J CD-ls 17-May-16 29.3J 0.94J 0.991 0.12J 1.01J 4.70J 1.93J CD-1s 1-Nov-16 30.51 1.23J 1.36J 0.281 1.35J 4.30J 1302-MSWLF- CD-ls 9-May-17 34.31 1.17J 1.26J 0.20J 0.97J 6.69J 1.82J CDLF-1998 CD-1s 31-Oct-17 0.52J 36.3J 1.811 0.54J 2.87J 0.37J 1.4L 6.91J 4.00J CD-ls 11-Jun-18 29.5J 5.7J 4.OJ CD-1s 17-Dec-18 26.7J 0.60J 3.6J 15.01 7.01 9.51 CD-ls 7-May-19 29.8 1.3J 7.01 5.1J CD-1s 5-Nov-19 31.9 1.01 1.8JB 0.070J 0.73J 5.01 7.3JB CD-ls 18-May-20 0.46J 34.5 2.2J 0.92J 0.23J 1.41 6.4J 6.9J CD-1s 23-Sep-20 34 1.3J 1.51 4.9J 4.2J CD-ls 17-Mar-21 42 1.31 4.11 5.81 CD-1s 17-Nov-21 34 4.OJ 34 CD-ls 26-Apr-22 32 4.OJ CD-ls 18-Oct-22 31 1.3J 1.4J 5.3 CD-ls 19-Apr-23 37 5.3 2.5J CD Id 7-May-12 72.41 0.581 3.91J 4.671 25 2.81J 5.58J 26 27.9B CD-ld 28-Nov-12 0.33J 37.71 0.07J 2.38J 0.94J 12.6 1.14J 2.501 8.901 13 CD-1d 8-May-13 0.881 1.021E 31.21 0.07J 0.78J 4.5J 0.49J 1.92J 6.181 13.1 CD-ld 5-Nov-13 35J 0.86J 4.34J 1.13J 1.90J 17.LB 10.8B CD-1d 6-May-14 1.14J 37.81 0.07J 0.05J 3.22JR 1.161 7.34J 0.81J 2.74J 0.12J 6.16J 9.43J6 CD-ld 4-Nov-14 43.11 0.16J 0.11J 2.25J 9.091 0.87J 2.88J WZIB 10.7 CD-1d 5-May-15 34.5JB 0.84J 3.63J 0.39J 1.42J 5.18J 3.68JB CD-ld 27-0ct-15 0.42J 42.31 0.13J 1.87J 2.15J 8.181 0.97J 2.49J 4.37CN,J 0.06J 10.91 14.OB-01 CD-1d 17-May-16 81.31 0.46J 4.86J 7.421 26.0 3.13J 7.11J 2.11J 0.07J 29.3 29.7 CD-ld 1-Nov-16 32.6J 1.191 0.77J 2.82J 0.33J 1.24J 7.96J 4.29J 1302-MSWLF- CD -Id 9-May-17 33.9J 1.27J 0.52J 1.811 6.92J 1.09J 6.95J 3.12J CDLF-1998 CD-ld 31-Oct-17 29.5J 0.68J 0.611 0.11J 0.64J 5.83J 1.24J CD -Id 12-Jun-18 32.4J 2.51 1.01 6.9J 3.2J CD-ld 17-Dec-18 31.9J 9.31 2.31 0.41J 3.01 6.8J 4.1J CD -Id 7-May-19 30.7 1.4J 2.9J 4.7J CD-ld 5-Nov-19 0.48J 30.1 1.91 1.1JB 0.13J 1.81 8.2JB CD -Id 18-May-20 29.1 0.64J 0.33J 5.6J 2.OJ CD-ld 22-Sep-20 0.67J 38 1.91 8.6 0.99J 4.21 36 4.8J CD -A 16-Mar-21 27 3.11 CD-ld 17-Nov-21 33 2.4J 0.42J 1.51 6.OJ 5.81 MIA27-Apr-22 30 1.4J 5.1 5.31 CD-ld 20-Oct-22 0.87J 28 6.4 3.01 4.01 4.4J 4.5J CD -Id 19-Apr-23 31 2.8J 0.30J 1.3J 5.7 6.5J CD-4 Rep 9-May-12 184 1.69J 18.1 1.70J 11.3J 3.03J 16.1B CD-4 Rep 29-Nov-12 172 13.7 0.62J 7.03J 2.84J 2.14JB CD-4 Rep 10-May-13 75.5J 0.5J 2.71J 7.87J 1.94J 11.2J 21.21 10.3 CD-4 Rep 7-Nov-13 1.36J 60.41 0.35J 0.07J 0.77J 5.31J 1.83J 5.11J 0.13J 32 4.40JB CD-4 Rep 7-May-14 62.41 0.31J 0.05J 3.25JB 5.02J 1.70J 6.52J 22.2J 2.97JB CD-4 Rep 5-Nov-14 70.01 0.31J 2.59J 1.46J 4.29J 14.81E 6.85J CD-4 Rep 6-May-15 58.4J 0.39J 1.13J 5.94J 1.901 0.53J 4.72J 14.OJ 2.99J CD-4 Rep 28-Oct-15 0.791 57.9J 0.32J 2.18J 5.86J 8.95J 1.261 30.7J 4.14CN,J 13.9J 8.34B-01,J CD-4 Rep 18-May-16 1.091 56.2J 0.461 1.24J 7.31LJ 1.02J 0.66J 5.43J 18.01 3.70J CD-4 Rep 2-Nov-16 463 02 135J 1.5 1.181J 0.90J 4.18 1.11J 18.11 8.81J 1302-MSWLF- CD-4Rep 9-May-17 53.8J 0.46J 0.9 5 5.931 172 052J 438J 10.51 3.73J CDLF-1998 CD-4 Rep 31-Oct-17 45.0J 0.181 0.97J 0.82J 0.58J 0.45J 2.75J 1.88J 7.68J 2.76J CD-4 Rep 6-Jun-18 52.9J 0.41J 3.4J 0.74J 3.3J 13.3J 4.OJ CD-4 Rep 19-Dec-18 1.1J 50.9J 0.961 4.6J 5.51 2.6J 2.9J 7.OJ 1.4J 15.5J 11.6 CD-4 Rep 8-May-19 45.9 0.38J 2.3J 7.0 1.4J 1.1 5.8 6.2J 13.7 CD-4 Rep 7-Nov-19 1.4J 31.5 0.40J 1.8J 1.3J 1.4JB 0.83J 3.8J 21.0 9.5JB CD-4 Rep 20-May-20 1.3JB 70.9 0.48J 0.981 6.6 0.77J 0.57J 5.1 11.6 12.5 CD-4 Rep 23-Sep-20 56 0.52 2.2J 3.1J 1.5J 1.4 5.6 11 7.3J CD-4 Rep 18-Mar-21 1.91 43 0.83 5.8 6.7 2.3J 7.4 26 10 CD-4 Rep 17-Nov-21 66 0.28J 6.0 1.4BJ 0.61J 4.4J 11 3.2J CD-4 Rep 27-Apr-22 74 0.24J 1.51 9.0 0.65J 5.1 3.9J 4.3J CD-4 Repp ct-22 52 0.3 382J 1.6J 19 0.8761 2.9J 718-Or- 19J R 17-A p23 5 0 .6 6.91D-4 CDWI Page 1 of 31 July 2023 Table 5a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 ,,, 1 15 1 100 1 20 20 2 7 1,000 CD-6 9-May-12 57.8J 0.20J 4.20J 2.08J 3.63J 81 17.21 1 17.7B CD-6 29-Nov-12 50.81 0.13J 2.251 1.80J 1.86J 31 12.3J 6.61JB CD-6 10-May-13 61.4J 0.36J 5.891 3.02J 4.121 7J 20.41 13.8 CD-6 7-Nov-13 0.57J 3.77J 298 0.14J 18.3 36.9 72.13J11.7J 71 1.071 14.6J 6.881B 1302-MSWLF- CD-6 7-May-14 38.5J 0.101 3.42JB 1.04J J 4.39J 2.40JB CDLF-1998 CD-6 5-Nov-14 120 0.88J 7.64J 8.021 8.02J 4J 0.141 .6B 25.7 CD-6 6-May-15 47.41 0.20J 1.60J 1.84J 2.77J 9J 10.51 5.40J CD-6 28-Oct-15 4.97J 215 2.03 32.3 19.5 25.6 16.1 21.6J 8.64J 4.05CN,1 0.37J 107 73.9B-01 CD-6 18-May-16 1.92J 62.2J 0.23J 3.46J 13.2 2.57J 1.581 8.70J 1.01J 12.6J 7.94J CD-6 2-Nov-16 1.89J 63.71 0.33J 6.181 1 13.3 3.12J 2.871 9.121 1.29J 17.3J 10.1 AMW-ls 7-May-12 103 0.86J 2.391 1.871 0.22J 3.87J 2.981 8.49JB AMW-ls 28-Nov-12 0.191 97.41 0.83J 0.798 0.781 0.111 3.311 2.41 4.79J AMW-ls 8-May-13 101 0.87J 1.981 0.09J 4.05J 2.24J 6.13J AMW-ls 6-Nov-13 98J 0.911 0.22J 2.91J 0.321 4.06J 6.701B AMW-ls 7-May-14 93.OJ 0.951 2.44JB 0.281 2.27J 0.47J 3.91J 1.39J 6.35JB AMW-1s 5-Nov-14 89.21 1.06 0.501 3.37J 0.78J 4.151 4.01JB 7.60J AMW-ls 7-May-15 87.61 0.97J 3.78J 0.31J 2.72J 0.681 5.86J 3.31J 6.51J AMW-1s 29-Oct-15 82.51 0.78J 1.031 0.71J 0.191 4.03J 3.18CN,1 4.22J 9.82B-01,J AMW-ls 18-May-16 0.27J 0.82J 85.41 1.03 1.43J 0.381 2.47J 0.92J 4.16J 5.18J 7.43J AMW-1s 2-Nov-16 71.71 0.56J 0.551 3.19J 5.78J AMW-ls 10-May-17 92.41 0.73J 0.61J 0.36J 3.911 2.60J 5.45J 1302-MSWLF- CDLF-1998 AMW-1s 1-Nov-17 68.21 0.66J 0.891 0.54J 0.141 2.71J 3.34J 6.37J AMW-ls 8-Jun-18 91.91 0.77J 5.2J 3.9J 4.4J 17.7 AMW-1s 19-Dec-18 86.41 0.891 3.91 3.11 5.91 AMW-ls 8-May-19 80.9 0.70 3.6J 2.4J 6.5J AMW-1s 6-Nov-19 1.6J 60.5 0.65 0.42J 4.1JB 2.4J 9.6JB 4.61 AMW-ls 18-May-20 0.55J 78.9 0.78 0.66J 0.26J 6.8 8.3J AMW-1s 23-Sep-20 72 0.91 4.OJ 2.1J 0.601 6.5 3.2J 8.6J AMW-ls 17-Mar-21 1.01 34 0.281 1.41 15 AMW-1s 17-Nov-21 2.0 34 0.41 1.41 1.51 0.371 1.41 3.2J 9.6J AMW-ls 27-Apr-22 75 1.1 3.4J 7.8 1.9 4.41 18 4.OJ AMW-Is 19-0ct-22 75 1.1 3.41 2.9J 0.421 4.9J 6.3J AMW-Is 18-Apr-23 97 0.97 4.9J 2.5J 7.5J AMW-ld 7-May-12 0.29J 135 5.20J 2.17J 0.27J 9.171 2.69J 8.98JB AMW-ld 28-Nov-12 0.41J 106 0.14J 1.381B 3.271 2.26J 0.52J 6.21J 5.50J AMW-ld 8-May-13 1.05JB 133 4.53J 1.63J 0.25J 7.83J 3.08J AMW-ld 6-Nov-13 133 1.881 4.311 1.77J 0.45J 7.45J 20.5JB 4.30JB AMW-ld 7-May-14 143 0.50J 0.051 5.48J 4.901 3.OL 9.84J 5.891 27.9E AMW-ld 5-Nov-14 1.46J 168 0.69J 0.05J 4.49J 6.70J 6.531 4.14J 11.81 13.8JB 20.8 AMW-ld 7-May-15 133 0.40J 4.08J 5.51J 3.581 2.14J 9.83J 5.47J 10.3 AMW-ld 29-0ct-15 1.41J 123 0.181 3.021 5.321 1.061 0.93J 8.61J 3.57CN,J 4.00J 6.79B-03,J AMW-ld 18-May-16 1.011 131 0.191 2.09J 6.06J 1.521 0.84J 9.03J 2.52J 6.84J AMW-ld 3-Nov-16 128 0.17J 2.20J 6.09J 1.12J 0.811 9.301 6.65J AMW-ld 30-May-17 0.62B-01,J 131 0.12J 1.30J 5.50J 0.66J 0.49J 8.07J 1.39J 5.111 1302-MSWLF- AMW-ld 1-Nov-17 0.851 128 0.141 0.931 6.07J 1.39J 0.45J 9.60J 5.49J CDLF-1998 AMW-ld 8-1un-18 1.2J 153 0.26J 2.9J 7.3J 2.OJ 1.4J 12.41 4.2J 14.2 AMW-ld 19-Dec-18 0.71J 127 0.16J 6.61 0.311 10.11 2.2J 5.01 AMW-ld 8-May-19 167 0.14J 6.3 9.8 6.1J AMW-ld 6-Nov-19 1.5J 60.4 0.65 0.45J 0.381E 0.077J 2.3J 26.5B 4.3J AMW-ld 18-May-20 1.2J 112 0.15J 0.881 6.5 0.55J 0.24J 10.3 8.41 AMW-ld 23-Sep-20 4.7 210 1.4 29 12 16 9.2 28 4.8J 0.16J 60 AMW-ld 17-Mar-21 41 0.45 AMW-ld 17-N0v-21 5.8 110 0.16J 1.51 5.7 1.51 0.741 12 7.6J AMW-ld 27-Apr-22 2.3 130 0.17J 3.4J 6.9 4.OJ 1.4 13 13 AMW-ld 19-Oct-22 0.851 140 0.311 7.0 9.0 13 1.3 15 4.61 12 AMW-ld 18-Apr-23 1.91 140 0.15J 1.6J 9.2 6.6 0.71J 13 11 CDWI Page 2 of 31 July 2023 Table 5a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 3. AMW-2s 8-May-12 42.8J 0.45J 1.48J 0.23J 2.85J 0.66J 1.47J 3.77J 5.92JB AMW-2s 29-Nov-12 45.3J 0.48J 1.02J 0.231 0.62J 0.321 1.191 1.41J AMW-2s 9-May-13 42.6J 0.57J 1.111 0.52J 1.06J 0.63J 1.95J 3.091 3.63J AMW-2s 6-Nov-13 40.1J 0.54J 0.271 0.64J 0.421 1.481 16.81E 3.51JB AMW-2s 7-May-14 43.7J 0.56J 2.16JB 0.30J 0.87J 0.35J 1.41J 1.96JB AMW-2s 5-Nov-14 46.OJ 0.69J 0.441 1.011 0.591 1.881 2.84J AMW-2s 6-May-15 2.72J 43.41 0.51J 1.07J 0.39J 1.46J 2.07J 2.37J AMW-2s 28-Oct-15 1.02J 50.6J 0.88J 1.56J 0.751 0.501 1.231 1.96J 6.12CN,1 6.23J 6.14E-01,J AMW-2s(dup) 28-Oct-15 1.001 51.1J 0.851 1.79J 0.87J 0.57J 1.34J 2.10J 3.34CN,J 7.031 7.01B-01,1 AMW-2s 17-May-16 45.8J 0.69J 1.151 0.651 0.48J 0.711 1.631 0.10J 4.51) 3.93J AMW-2s 1-Nov-16 46.5J 0.73J 1.60J 0.58J 0.57J 0.74J 1.81J 5.17J 1302-MSWLF- AMW-2s 30-May-17 0.62B-01,J 42.7J 0.47J 0.951 0.171 1.021 3.58J 1.62J CDLF-1998 AMW-2s 1-Nov-17 43.6J 0.54J 0.881 0.53J 0.26J 1.17J 3.64J 3.21J AMW-2s 8-Jun-18 45.9J 0.47J 1.41 3.71 3.OJ AMW-2s 20-Dec-18 39.OJ 0.39J 9.81 3.7J 5.81 AMW-2s 7-May-19 44.1 0.55 1.6J 1.4J 4.3J 3.41 AMW-2s 6-Nov-19 1.2J 40.2 0.42J 0.75J 0.33JB 0.091J 0.88J W 150 AMW-2s 19-May-20 40.6 0.39J 0.78J 0.21J 0.871 1.51 3.1J AMW-2s 23-Sep-20 43 0,71 0.66J 1.5J 4.1J 3.6J AMW-2s 17-Mar-21 86 1.51 2.lJ 12 AMW-2s 17-Nov-21 37 0.49 AMW-2s 27-Apr-22 43 0.75 0.881 2.OJ 4.3J 13 AMW-2s 19-Oct-22 38 0.74 2.41 0.61J 1.3J 4.2J AMW-2s 18-Apr-23 41 0.74 0.651 1.3J 4.1J 2.7J AMW-2d 8-May-12 78.2J 1.26J 3.20J 0.33J 1.22J 2.79J 10.5B AMW-2d 28-Nov-12 69.11 0.881 2.341 0.391 2.561 4.76J AMW-2d 9-May-13 54.71 1.751 0.06J 1.42J 4.031 2.41 AMW-2d 6-Nov-13 71.11 2.43J 2.691 7.86JB AMW-2d 7-May-14 57.01 0.10J 2.08JB 0.84J 1.24J 0.76JB AMW-2d 5-Nov-14 60.41 0.07J 1.25J 2.331 1.09JB 5.04J AMW-2d 6-May-15 1.28J 67.4J 0.85J 1.67J AMW-2d 28-Oct-15 0.25J 63.91 0.45J 0.141 1.501 2.79CN,1 2.65J 7.41E-01,J AMW-2d 17-May-16 64.5J 0.13J 1.37J 1.07J 1.38J AMW-2d 2-Nov-16 67.71 0.10J 0.66J 1.901 5.02J 1302-MSWLF- CDLF-1998 AMW-2d AMW-2d AMW-2d 10-May-17 2-Nov-17 8-Jun-18 0.65B-01,J 70.1J 74.21 75.7J 0.14J 0.161 0.17J 3.63J 0.24J 1.32J 1.48J 2.lJ 3.81 4.53J 2.00J 3.lJ AMW-2d 20-Dec-18 75.31 0.20J 0.581 4.lJ AMW-2d 7-May-19 74.6 0.181 2.7J 2.71 3.3J 11.6 AMW-2d 6-Nov-19 0.75J 2.3J 73.2 0.101 1.11 1.8JB 0.231 2.8J 8.6J 108 AMW-2d 19-May-20 72.4 0.20J 0.38J 0.28J 0.069J 1.61 2.6J AMW-2d 23-Sep-20 0.981 68 1.6J 0.44J 1.9J 14 AMW-2d 17-Mar-21 120 2.5J 2.OJ 0.881 13 20 AMW-2d 16-Nov-21 67 0.181 1.9J 8.7J AMW-2d 26-Apr-22 65 0.21J 1.91 AMW-2d 19-Oct-22 66 0.25J 8.2 2.lJ 29 AMW-2d 18-Apr-23 68 0.22J 2.8J MW-1 9-May-12 201 0.161 0.061 2.261 17.8 17.0 3.611 42.4J 6.901 13.9E 4.86J MW-1 28-Nov-12 153 1.03J 0.751 12.6 5.54J 0.75J 29.9J 5.75J 3.55J MW-1 30-May-13 172 0.12J 0.26J 0.87J 15.9 9.48J 0.3J 35.11 8.86J 8.67J MW-1 6-Nov-13 127 0.31J 11.5 8.66J 1.12J 281 31.91B 2.64JB = 5.61J MW-1 7-May-14 1.991 120 0.06J 0.28J 10.3 10.2 0.281 28.2J 0.101 6.99J 1.931 MW-1(dup) 7-May-14 119 0.05J 0.31J 10.5 10.2 0.291 28.01 5.70J 6.161 1.911 MW-1 4-Nov-14 2.27J 126 0.05J 0.44J 12.5 9.07J 0.95J 31.1J 2.40J 5.47JB 1.72J MW-1 5-May-15 0.83J 128 0.17J 11.6 7.74J 0.231 29.91 2.99J 3.77J 1.881 MW-1 28-Oct-15 144 0.361 1.52J 14.4 8.26J 1.15J 33.3J 4.32CN,J 3.63J 4.24B-03,J MW-1 19-May-16 144 0.34J 0.51J 12.8 12.0 0.281 29.41 2.59J 1.991 MW-1 2-Nov-16 143 0.39J 13.7 8.64J 0.63J 30.4J 3.02J MW-1 30-May-17 150 0.17J 0.51J 12.5 6.82J 0.321 29.41 3.29J 2.05J 1302-MSWLF- CDLF-1998 MW-1 MW-1 MW-1(dup) 31-Oct-17 7-Jun-18 7-Jun-18 0.93J 1.2J 0.87J 132 146 148 0.43J 0.21J 0.34J 0.76J 12.4 13.1 13.6 7.78J 7.8J 8.3J 0.78J 0.481 0.55J 29.OJ 29.6J 31.3J 3.15J 3.05J 4.2J 7.OJ MW-1 19-Dec-18 136 0.68J 12.2 6.3J 0.681 30.OJ 2.61 3.OJ MW-1 9-May-19 0.46J 133 12.7 3.lJ 0.13J 28.9 1.51 2.5J MW-1(dup) 9-May-19 135 12.3 2.7J 0.121 27.8 2.5J MW-1 6-Nov-19 135 3.8 12.91,D3 20.OJ,B,D3 1.2 30.4D3 3.6J,D3 MW-1(dup) 6-Nov-19 146 4.2D3 13.11,D3 19.51,B,D3 1.3 31.5D3 8.71,B,D3 MW-1 20-May-20 0.73JB ill 0.37J 0.57J 9.5 8.9 0.41J 24.1 3.2J 3.7J MW-1 25-Sep-20 120 0.24J 1.41 9.2 5.7 1.2 25 3.01 4.41 11 MW-1 18-Mar-21 150 0.14J 12 3.3J 2.0 31 2.5J 3.6J 2.5J MW-1 18-Nov-21 100 0.16J 7.4 2.981 0.931 25 3.91 MW-1 28-Apr-22 140 12 2.3J 1.3 2.7J MW-1 18-Oct-22 120 9.4 1.9J 1.5 26 1.11 3.31 MW-1 18-Apr-23 150 0.391 1.41 18 1.5 33 1 3.OJ 4.0 1 6.3J CDWI Page 3 of 31 July 2023 Table 5a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 o 10 MW-3 8-May-12 30.1J 2.07J 0.64J 1.69J 3.76J 7.63JB MW-3 28-Nov-12 28.61 2.30J 0.32J 0.84J 3.54J 1.981 MW-3 9-May-13 37.9J 0.51J 3.28J 1.53J 1.811 6.15J 8.11 MW-3 7-Nov-13 0.501 37.91 0.47J 0.09J 3.93J 1.78J 3.55J F2.21J F4.47J .7J 82B MW-3 8-May-14 56.2J 0.70J 3.32J 2.45J 3.08J 8.62J 36.6 MW-3 6-Nov-14 30.81 0.051 1.14JB 0.40J 1.03J 3.85J 3.57JB MW-3 6-May-15 0.811 55.41 0.71J 4.14JB 2.591 3.17J 0.07J 31.3J 15.3 MW-3 28-Oct-15 25.01 1.23J 4.17CN,J 3.12J 5.43B-03,J MW-3 18-May-16 1.46J 0.35J 0.99J 3.48J 2.10J MW-3 2-Nov-16 27.41 1.60J 0.25J 1.001 2.36J 1302-MSWLF- MW-3 11-May-17 32.OJ 0.13J 2.00J 0.63J 0.55J 1.29J 3.65J 2.93J CDLF-1998 MW-3 1-Nov-17 27.61 1.45J 0.07J 0.89J 2.40J MW-3 7-Jun-18 0.63J 28.OJ 0.051J 1.3J 2.4J 3.5J MW-3 19-Dec-18 31.11 0.14J 1.81 0.311 1.OJ 2.7J 2.3J MW-3 8-May-19 32.5 0.074J 1.6J 2.7J 2.3J MW-3 6-Nov-19 1.41 30.9 0.12J 0.21J 1.51 0.44JB 0.34J 0.96J 7.5JB 4.6J MW-3 19-May-20 0.57J 31.4 1.2J 0.70J 4.2J MW-3 23-Sep-20 34 0.35J 1.6J 1.1 1.3J 3.5J 4.9J MW-3 17-Mar-21 34 1.5J MW-3 17-Nov-21 30 34 MW-3 27-Apr-22 32 MW-3 19-Oct-22 32 MW-3 19-Apr-23 33 1.3J MW-3 Deep 9-May-12 0.35J 38.31 0.93J 2.12J 1.731B MW-3 Deep 10-May-13 0.41J 37.7J 0.12J 0.09J 2.18JB 0.13J 1.32J 0.17J 2.49J 2.57J MW-3 Deep 8-May-14 40.81 0.13J 4.10J 1.59J 0.98J 2.78J 5.44J MW-3 Deep 6-May-15 0.26J 2.16J 44.OJ 0.13J 0.29J 1.901 1.72J 2.47J 33.2 MW-3 Deep 28-Oct-15 1.02J 42.21 0.70J 0.50J 0.64J 0.57J 3.000N,J 5.87B-03,J 1302-MSWLF- MW-3 Deep 19-May-16 1.50J 43.OJ 0.69J 0.61J 0.40J 0.58J 2.37J 3.26J CDLF-1998 MW-3 Deep 11-May-17 0.76J 0.71J 44.11 0.551 0.80J 0.43J 0.68J 2.06J MW-3 Deep 7-Jun-18 0.811 50.3J 3.6J MW-3 Deep 8-May-19 0.73J 56.9 5.7J MW-3 Deep 19-May-20 1.4JB 52.6 0.44J 0.62J 0.10J 0.64J 1.7J 5.3J MW-3 Deep 19-Mar-21 57 1.41 12 MW-3 Deep 26-Apr-22 50 3.5J MW-3 Deep 19-Apr-23 52 1.31 7.2J 1302-MSWLF- MW-9 3-May-11 11.81 1.44JB 0.27J 3.871 0.61J 5.87J 4.62JB CDLF-1998 MW-9 9-Nov-11 9.87J 1.731 0.161 2.04J 0.54J 4.77J MW-9 9-May-12 13.7J 1.33J 0.34J 5.65J 0.091 0.801 6.19JB MW-A 9-May-12 42.41 0.101 1.14J 8.20J 0.911 15.5J 4.53JB MW-A 27-Nov-12 0.36JB 45.6J 0.13J 0.97J 2.86J 1.17J 11.61 1.861 2.63J MW-A 7-May-13 43.7J 0.14J 0.64J 1.48J 1.481 0.07J 9.14J 1.091 2.31J MW-A 5-Nov-13 43.41 1.65J 2.05J 0.76J 9.93J 3.37JB MW-A 6-May-14 44.2J 0.14J 3.73JB 8.881 0.84J 16.6J 1.15J 2.30JB MW-A 4-Nov-14 45.1J 0.20J 6.141 0.94J 18.7J 1.41J 1.87J MW-A 5-May-15 46.9J 0.15J 3.44J 0.841 13.4J 1.41J 1.82J MW-A 27-Oct-15 0.26J 47.2J 0.14J 3.15J 1.181 0.17J 12.9J 2.25CN,J 2.14J 5.23B-03,J MW-A 17-May-16 0.35J 1.011 44.31 0.17J 9.54J 0.481 19.81 2.40J 1.64J MW-A 1-Nov-16 48.6J 0.17J 7.251 19.2J 3.85J MW-A 9-May-17 0.45B-01,J 48.9J 0.161 4.69J 0.40J 14.7J 1.801 1302-MSWLF- MW-A 31-0ct-17 50.91 0.15J 4.83) 0.27J 15.1J 1.97J CDLF-1998 MW-A 7-Jun-18 52.81 0.14J 4.6J 2.7J 29.8J 22.0 MW-A 20-Dec-18 52.31 0.090J 5.51 16.81 2.9J MW-A 9-May-19 56.0 0.191 11.2 25.2 1.51 31.9 3.81 6.OJ MW-A 5-Nov-19 50.8 0.17J 13.0 0.83JB 0.066J 22.0 8.2JB MW-A 19-May-20 47.8 0.161 10.5 0.45J 19.8 4.6J MW-A 23-Sep-20 47 0.15J 1.91 7.0 2.6J 0.25J 18 17 MW-A 17-Mar-21 64 0.40 40 1.6J 32 9.7J MW-A 16-Nov-21 46 0.22J 15 18 MW-A 17-Mar-21 64 0.40 40 1.6J 32 9.7J MW-A 27-Apr-22 47 8.2 16 3.31 MW-A 20-Ott-22 41 0.11 11 5.2 O.SL 21 6.8J MW-A 19-Apr-23 47 0.171 8.4 5.4 0.501 23 25 CDWI Page 4 of 31 July 2023 Table 5a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 ,,, 1 15 1 100 1 20 1 20 1 2 1 7 1 1,060 MW-B 9-May-12 191 8.681 0.891 0.09J 6.35J 15.9B MW-B 29-Nov-12 5.88J 268 23.5 1.08J 0.20J 9.101 2.29J 3.58J MW-B 10-May-13 2.55J 197 9.39J 1.11 0.29J 6.4J 2.89J 10.7 MW-B 6-Nov-13 2.02J 225 11.7 0.97J 0.231 6.72J 1.49J 3.77JB 5.811 MW-B 8-May-14 2.73J 236 0.081 11.5 1.251 0.55J 8.80J 1.48J 3.14J MW-B 4-Nov-14 6.04J 226 0.06J 21.0 1.12J 0.18J 12.11 2.75J 2.62JB 1.52J MW-B 5-May-15 0.30J 1.50J 160 8.501 1.25J 0.34J 7.05J 2.25J 1.97J MW-B 29-Oct-15 2.61J 171 0.52J 16.5 0.53J 0.31J 5.45J 2.39CN,J 0.07J 7.39B-01,J MW-B 19-May-16 0.30B-01,J 2.16J 225 1.051 11.7 0.81J 0.39J 6.53J 0.06J 4.64J 3.54J MW-B 3-Nov-16 2.43J 196 13.5 0.24J 6.84J 2.71J 1302-MSWLF- MW-B 10-May-17 1.73B-01,J 258 0.581 9.201 0.45J 0.35J 5.54J 0.06J 3.15J 2.03J CDLF-1998 MW-B 31-Oct-17 3.55J 256 0.77J 14.9 0.29J 0.09J 7.28J 2.08J MW-B 6-Jun-18 4.81 251 0.191 2.3J 15.8 2.1J 0.97J 7.8J 0.15J 4.9J 6.3J MW-B 19-Dec-18 0.78J 172 0.071J 9.61 0.36J 5.5J 15.1 MW-B 9-May-19 0.38J 175 7.3 0.27J 0.101 5.5 2.5J MW-B 6-Nov-19 207 8.5J,D3 0.29JB 5.6J,D3 MW-B 20-May-20 0.72JB 158 0.681 8.4 0.47J 0.381 4.8J 1.11 4.2J MW-B 25-Sep-20 2.0 230 0.16J 1.3J 11 0.68J 6.9 3.7J 6.1J MW-B 18-Mar-21 1.6J 230 12 0.29J 6.8 1.41 MW-B 18-Nov-21 150 8.2 4.4J MW-B 27-Apr-22 120 11 3.9J MW-B 17-Oct-22 1.7J 180 10 4.3J MW-B 17-Apr-23 1.5J 170 30 0.36J 4.41 4.1J MW-C 9-May-12 43.51 0.43J 7.451 17 3.94J 2.301 6.85J 10.4J 22.2E MW-C 29-Nov-12 35.8J 0.13J 2.751 9.051 1.17J 0.71J 3.94J 4.87J 8.07J MW-C 9-May-13 19.71 0.24J 2.961 0.75J 1.36J O.BJ 1.77J 3.48J 10.1 MW-C 6-Nov-13 31.7J 0.26J 3.771 9.541 1.79J 0.82J 3.74J 23.5JB 18.8B MW-C 7-May-14 19.61 0.17J 2.98JB 3.20J 0.79J 0.26J 1.65J 3.08JB MW-C 5-Nov-14 47.21 0.10J 0.57J 1.681 4,201 1.301 0.21 4.74J 2.11JB 3.06J MW-C 6-May-15 20.4J 0.30J 2.381 2.26J 1.66J 0.91J 2.34J 3.53J 3.43J MW-C 29-0ct-15 1.42J 47.9J 0.681 IL 11.6 7.47J 4.52J 3.04J 9.281 1.15J 3.79CN,J 0.10J 14.4B-01 4.11J MW-C 18-May-16 21.41 0.21J 0.71J 1.791 0.47J 0.25J 1.69J 2.01J MW-C 2-Nov-16 2.16J 34.OJ 0.181 1.30J 10.3 0.55J 0.33J 3.79J 3.51J 1302-MSWLF- MW-C 9-May-17 22.51 0.14J 1.081 0.43J 0.301 1.181 1.94J 1.36J CDLF-1998 MW-C 1-Nov-17 0.601 31.9J 0.33J 4.971 7.83J 1.381 1.20J 3.92J 8.391 5.70J MW-C 7-1un-18 2.OJ 52.51 0.81J 8.21 4.1J 4.OJ 8.81 1.51 25.8 17.7 MW-C 19-Dec-18 22.OJ 0.14J 0.11J 0.97J 0.33J 1.2J 3.OJ MW-C 30-May-19 19.6 0.161 28.7 1.31 3.1J 0.181 9.7 1.7J 4.5J MW-C 6-Nov-19 79.5 0.20J 3.4J,D3 7.B1,D3 1.6J,B,D3 0.91J 8.2J,D3 8.3J,D3 9.5J,B,D3 MW-C 19-May-20 14.8 0.25J 1.21 2.1J 0.84J 0.31J 1.3J 1.7J 3.11 MW-C 22-Sep-20 51 3.1J 0.411 3.4J 3.2J 5.8J MW-C 18-Mar-21 21 0.34J 2.41 3.1J 0.77J 1.7J 6.4 4.7J MW-C 18-Nov-21 58 9.7 6.8 MW-C 27-Apr-22 15 MW-C 17-0ct-22 52 0.32J 6.8 3.3J 1.81 1.3 6.2 9.2 5.6J MW-C 17-Apr-23 17 0.17J 0.34J 3.41 MW-D 9-May-12 124 3J 8.971 3.94J 0.61J 15.7J 5.121 9.33JB MW-D 28-Nov-12 0.98J 1.83J 117 O.11J 0.061 2.31J 3.01J 3.63J 0.611 13.8J 12.11 5.11JB MW-D 9-May-13 140 0.21J 0.081 6.41 6.72J 7.78J 0.94J 17.3J 25.8 10.8 MW-D 6-Nov-13 194 0.86J 0.25J 12.8 35.5 7.32J 27J 105E 37.9E MW-D 7-May-14 169 0.211 3.74JB 19.0 1.161 20.7J 8,021 1.43JB MW-D 5-Nov-14 121 0.11J 0.06J 1.62J 7.61J 3.411 0.721 18.3J 0.95JB 7.001 MW-D 5-May-15 1.79J 164 14.2 LOW 21.7J 4.51J 1.62J MW-D 29-Oct-15 0.30J 5.11J 199 0.74J 0.12J 39.0 10.4 32.7 6.25J 37.OJ 5.92J 3.91CN,J 0.37J 7 48.5B-03 MW-D 18-May-16 1.65JJ 157 0.111 0.851 17.0 0.92J 0.19J 21.01 3.92J 1.72J MW-D 3-Nov-16 134 0.091 8.751 0.85J 0.21J 19.9J 3.64J MW-D 9-May-17 0.94B-01,J 242 0.07J 0.561 18.8 0.42J 0.09J 24.31 8.27J 5.68J 1302-MSWLF- MW-D 1-Nov-17 1.23J 151 0.30J 9.17J 6.691 7.62J 1.60J 20.4J 1.87J 0.06J 12.8J 14.5 CDLF-1998 MW-D 7-Jun-18 1.2J 139 0.111 1.71 3.41 1.4J 0.36J 15.7J 6.81 15.8 MW-D 19-Dec-18 214 0.111 18.6 14.81 14.OJ MW-D 30-May-19 140 0.22J 0.64J 12.1 0.47J 18.1 18.7 6.3J MW-D 6-Nov-19 210 0.15J 16.3J,D3 2.5J,B,D3 0.50JB 27.0 4.3J,D3 5.11,B,D3 MW-D 20-May-20 206 0.13J 13.2 0.047J 23.4 12.3 3.9J MW-D 24-Sep-20 220 0.23J 13 1.3J 0.361 27 3.0J MW-D(dup) 24-Sep-20 210 13 1.3J 0.28J 25 2.6J MW-D 18-Mar-21 160 0.15J 2.7J 34 2.4J 0.481 20 3.0 3.OJ MW-D 18-N0v-21 1.6J 280 17 32 MW-D 27-Apr-22 1.5J 270 16 30 MW-D 17-Oct-22 1.6J 210 3.5J 11 2.1J 0.46J 24 4.2J 2.8J MW-D 17-Apr-23 2.1 390 20 29 3.2J MW-D(dup) 17-Apr-23 2.3 410 22 33 Smth Page 5 of 31 July 2023 Table 5a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 ,,, 1 15 1 100 1 20 1 20 1 2 1 7 1 1,000 MW-E Rep 8-May-12 303 0.31J 12.6 0.85J 0.32J 15.2J 1.72J 10.3B MW-E Rep 8-May-13 286 0.34J 8.29J 1.08J O.OBJ 14J 0.89J 3.71J MW-E Rep 5-Nov-13 294 15.5 0.841 0.22J 15.81 6.381B MW-E Rep 6-May-14 342 0.441 16.8 1.451 0.671 15.91 F2.07CN,J 6.461B MW-E Rep 4-Nov-14 326 0.21J 8.391 0.891 0.28J 15.9J 1.57J 2.99JB 4.31J MW-E Rep 5-May-15 348 0.30J 7.48J 1.02J 0.62J 14.5J 1.441 4.46J MW-E Rep 27-Oct-15 0.911 294 0.261 1.12J 10.2 0.39J 12.3J 4.84B-Ol,J MW-E Rep 18-May-16 1.111 365 0.271 12.0 0.32J 12.9J 2.311 2.991 MW-E Rep 1-Nov-16 297 0.151 5.44J 0.17J 11.4J 5.13J MW-E Rep 9-May-17 0.71B-03,J 353 0.20J 7.58J 0.13J 12.1 1.43J 3.40J 1302-MSWLF- MW-E Rep 31-Oct-17 0.86J 344 0.221 6.81 0.34J 12.2J 4.45J 3.71J CDLF-1998 MW-E Rep 11-Jun-18 0.66J 350 0.23J 9.1J 13.1 4.6J MW-E Rep 20-Dec-18 321 0.111 7.1J 13.1J MW-E Rep 7-May-19 0.57J 344 0.23J 7.4 11.7 3.41 MW-E Rep 5-Nov-19 0.28J 319 0.17J 5.6 0.32JB 0.11J 13.6 34.2B MW-E Rep 21-May-20 339 0.12J 3.2J 14.6 1.21 2.7J MW-E Rep 23-Sep-20 360 0.27J 7.3 0.61J 15 2.6J 6.5J MW-E Rep 17-Mar-21 0.66J 350 13 0.34J 12 5.51 MW-E Rep 17-Nov-21 340 0.24J 5.5 0.43J 13 3.8J MW-E Rep 27-Apr-22 410 0.43 2.OJ 9.9 2.41 6.8 16 6.5 19 MW-E Rep 19-0ct-22 3.0 410 1.2 21 9.8 3.2J 4.1 31 4.51 16 79M MW-E Rep 18-Apr-23 360 1 0.291 1 10 1 0.58J 1 18 1 1 3.OJ 8.11 MW-EDeep 8-May-12 2.51J 2,210 0.53J 0.36J 50.1 31.6 94 24.9J 7.651 60.9B MW-EDeep 28-Nov-12 0.71J 3.86J 1,820 0.84J 1.99 4.56J 39.6 22.3 213 26.1 0.181 9.20J 67.2 MW-EDeep 8-May-13 4.56JB 11730 0.34J 0.71J 37.9 4.7J 74.5 20J 43 MW-EDeep 6-Nov-13 1.091 2,240 O.19J 0.32J 39.7 2.34J 39.3 20.51 16JB 41.2E MW-EDeep 6-May-14 2.691 21080 0.601 0.441 63.4 6.291 60.9 32.7J 2.491 32.2B MW-EDeep 4-Nov-14 3.29J 2,000 0.31J 0.47J 43.6 6.41J 55.6 20.41 3.75JB 30.0 MW-EDeep 5-May-15 2.42J 2,040 0.25J 0.19J 34.4 2.70J 22.2 17.3J 0.87J 2.54J 19.3 MW-EDeep 27-Oct-15 2.551 1,900 0.28J 0.23J 34.3 4.341 38.2 14.2J 2.81CN,J 2.97J 24.3E-03 MW-E Deep 18-May-16 3.54J 2,250 0.48J 0.67J 0.93J 37.0 8.731 7% M.. 1.07J 8.521 30.6 MW-EDeep 1-Nov-16 2.43J 1,960 0.22J 0.18J 34.5 2.341 18.5 14.6J 19.3 1302-MSWLF- CDLF-1998 MW-EDeep MW-EDeep MW-E Deep 9-May-17 1-Nov-17 11-1un-18 1.68B-01,J 1.65J 2.1J 2,010 2,100 2,310 0.23J 0.26J 0.21J 0.46J 32.9 32.3 33.5 0.591 1.63J 3.96J 9.69J 2.11 14.5J 15.2J 13.91 0.06J 1.31J 8.05J 8.011 4.81 MW-EDeep 20-Dec-18 1.31 2,640 0.26J 1.6J 39.1 6.7J 211 5.21 MW-EDeep 8-May-19 2.1J 2,930 0.37J 42.1 2.9 24.9 5.41 MW-E Deep 5-Nov-19 2.OJ 2,670 0.28J 38.3 0.8LB 8.9 20.6 11.0E MW-EDeep 21-May-20 2.6JB 4,120 0.40J 0.23J 0.46J 40.5 1.31 18.9 29.4 3.3J 13.0 MW-EDeep 23-Sep-20 3.3 2,800 0.72 2.0 2.3J 34 22 230 24 1.31 46 MW-EDeep 17-Mar-21 2.1 2,600 32 2.6J 6.1 18 21 MW-EDeep 17-Nov-21 2.5 2,300 12,45000S 0.21J 0.16J 34 2.1 18 18 8.51 MW-EDeep 27-Apr-22 2.7 2,200 0.35J 0.49J 2.8J 30 8.3 48 16 3.6J 25 MW-EDeep 19-Oct-22 2.6 2,0 0.25J 29 1.4J 17 14 4.8J MW-E Deep 18-Apr-23 2.8 0.32J 0.24J 35 3.5J 37 1 17 1 1 11 MW-F 9-May-12 3.19J 242 8.35J 1.27J 3.33J 0.92J 2.85J 2.34JB MW-F 29-Nov-12 283 0.15J 1.86J 8.501 1.07J 0.59J 5.00J 1.52J 3.76J 4.46J MW-F 10-May-13 1.17J 154 0.21J 1.631E 5.16J 1.56J 0.15J 2.78J 2J 0.12J 4.86J MW-F 6-Nov-13 2.011 255 11.2 0.82J 0.19J 3.45J 0.83J 2.43JB MW-F 8-May-14 5.17J 213 0.161 10.4 0.97J 0.54J 4.88J 1.04J 1.77J MW-F 4-Nov-14 2.92J 262 0.23J 11.3 0.801 0.45J 5.51J 3.09J 1.25J MW-F 5-May-15 0.31J 2.29J 129 0.111 1.39J 0.73J 0.10J 4.57J 1.85J MW-F 28-Oct-15 5.94J 262 0.45J 13.0 0.79J 0.14J 4.80J 1.92CN,J 3.67B-01,J MW-F 18-May-16 3.40J 214 9.62t 3.84J MW-F 3-Nov-16 231 0.14J 7.64J 4.63J MW-F 11-May-17 0.87B-03,J 190 0.12J 4.101 0.081 5.00J 1302-MSWLF- MW-F 31-Oct-17 0.801 363 13.4 4.31J 1.33J CDLF-1998 MW-F 6-Jun-18 2.41 149 0.48J 3.1J 3.6J 1.81 7.1J 6.71 6.4J MW-F 19-Dec-18 0.811 103 0.101 1.31 5.8J MW-F(dup) 19-Dec-18 1.01 107 0.101 1.3J 6.1J MW-F 9-May-19 2.41 188 7.2 6.6 4.5 8.91 MW-F 6-Nov-19 28.0 0.19JB MW-F 20-May-20 2.OJB 231 0.0881 0.391 8.4 0.63J 0.16J 6.7 5.91 MW-F 25-Sep-20 3.4 300 0.86 2.2J 5.8 1.5J 1.2 14 1.4J 8.7 4.9J MW-F 18-Mar-21 6.2 320 0.191 14 10 MW-F 18-Nov-21 240 2.01 12 1.5J MW-F 27-Apr-22 1.5J 220 5.5 9.9 MW-F 17-Oct-22 1.4J 160 3.01 6.5 MW-F 17-Apr-23 130 3.3J 1.41 0.44J 8.2 CDWI Page 6 of 31 July 2023 Table 5a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 MW-G 9-May-12 4.451 302 2.191 0.861 4.40J 1.41J 29-Nov-12 2.031 385 0.151 2.14J 0.61 0.121 3.691 3.031 61MW-G 10-May-13 354 0.181 5.081 1.191 0.14J 2.43J 1.51J 4JMW-G 6-Nov-13 5.44J 346 3.09J 0.811 0.091 4.811 2.75J 72513.7B.7BMW-G 91BMW-G 8-May-14 4.42J 373 0.201 6.691 1.31J 0.27J 5.00J 2.95J 8JMW-G 4-Nov-14 480 0.26J 7.02J 2.57J 0.611 9.321 2.96J 0.17J 2JMW-G 2.13J 5-May-15 340 0.181 5.62J 2.30J 0.37J 5.29J 4.79J 6J MW-G 28-Oct-is 4.45J 387 0.14J 1.23J 5.01J 0.74J 0.191 4.88J 2.09CN,1 2.76J 3.69E-01,J MW-G 19-May-16 3.19J 412 0.151 1.31J 6.07J 0.891 0.26J 5.07J 4.72J 4.62J MW-G (dup) 19-May-16 0.31B-01,J 3.51J 417 0.111 1.051 5.37J 0.091 3.641 2.55J 2.08J MW-G 3-Nov-16 6.65J 418 0.09J 1.23J 3.671 LOW 5.36J 5.04J 1302-MSWLF- MW-G 11-May-17 0.46J 2.21J 448 0.35J 2.75J 7.45J 2.82J 1.141 5.531 1.72J 0.091 10.5 2.41J CDLF-1998 MW-G 1-Nov-17 5.93J 488 0.101 0.95J 5.96J 0.09J 5.39J 2.66J MW-G 6-Jun-18 5.2J 448 0.0911 6.3J 4.5J 2.2J MW-G 19-Dec-18 1.41 331 0.20J 6.31 2.5J 3.11 3.8J MW-G 9-May-19 2.4J 464 0.13J 0.79J 14.6 0.43J 0.111 10.9 0.0631 0.74J 3.8J MW-G 6-Nov-19 2.4J,D3 451 7.41,D3 0.13JB 10.4J,D3 8.4J,B,D3 MW-G 20-May-20 4.OJB 377 0.0881 1.61 14.4 0.26J 0.49J 9.2 2.21 3.3J MW-G 25-Sep-20 5.8 0.17J 1.91 18 1.4J 0.56J 18 9.2 6.8 5.9J 340 MW-G 18-Mar-21 4.3 28 0.26J 30 4.2J 3.6J 2.7J MW-G 18-Nov-21 5.3 320D 18 26 17 MW-G 28-Apr-22 3.3 300 28 35 1.7J MW-G 18-0ct-22 4.5 330 8.5 21 9.8 MW-G 19-Apr-23 2.1 320 15 9.8 2.5J MW-H 9-May-12 44.91 0.13J 3.58J 0.891 4.23J 1.17J 3.17J 5.79J 12.1B MW-H 29-Nov-12 37.8J 1.68J 0.251 1.62J 0.291 1.131 2.89J 5.65J MW-H 9-May-13 27.91 1.941 0.21J 1.33J 0.22J 1.11 2.68J 5.45J MW-H 7-Nov-13 721 0.38J 4.94J 2.51J 6.39J 2.65J 5.96J 16.4E MW-H 8-May-14 67.01 0.47J 3.481 1.73J 6.34J 2.12J 4.49J 14.2 MW-H 6-Nov-14 49.8J 0.17J 2.041E 0.95J 3.67J 0.951 2.971 5.33J 7.551E MW-H 5-May-15 1.20J 52.5J 0.20J 0.50JB 0.891 4.34J 1.27J 2.94J 4.63J 7.65J MW-H 29-Oct-15 1.85J 78.1J 0.48J 8.22J 2.56J 8.56J 2.51J 7.19J 2.57J 4.20CN,1 0.09J 14.7J 22.9E-01 MW-H 19-May-16 1.24J 52.3J 0.25J 4.01J 1.161 3.62J 1.26J 3.27J 1.52J 8.62J 9.43J MW-H 3-Nov-16 67.8J 0.33J 5.811 1.961 5.86J 1.78J 5.591 2.87J 10.7J 15.7 1302-MSWLF- MW-H 11-May-17 0.85J 64.81 0.281 6.821 1.83J 4.76J 1.681 6.281 2.39J 0.091 20.21 12.5 CDLF-1998 MW-H 1-Nov-17 0.62J 59.5J 0.23J 4.10J 1.20J 4.29J 1.29J 3.51J 3.111 8.681 9.69J MW-H 7-Jun-18 1.2J 56.6J 0.26J 3.8J 1.21 4.7J 1.3J 3.2J 8.11 9.6J MW-H 19-Dec-18 1.1J 74.7J 0.53J 7.81 2.6J 9.81 2.8J 6.6J 1.81 15.OJ 17.9 MW-H 9-May-19 32.7 0.13J 1.3J 0.47J 2.9J 0.481 2.8J 4.7J 7.3J MW-H 6-Nov-19 65.3 0.32J 5.5 1.91 5.8B 1.6 6.8 0.060J 12.2 19.5E MW-H 19-May-20 0.52J 62.1 0.35J 6.0 2.3J 5.4 2.2 6.7 0.075J 10.7 18.3 MW-H 24-Sep-20 1.3J 59 0.42 6.2 2.4J 5.4 1.8 6.7 1.61 10 16 2.5J MW-H 18-Mar-21 35 1.6J 0.26J 1.6J 2.6J MW-H 17-Nov-21 30 1.81 MW-H 26-Apr-22 39 1.41 1.3J 0.40J 1.91 3.3J 3.7J MW-H 17-Oct-22 37 2.6J 0.36J 2.5J 3.1J 3.2J MW-H 18-Apr-23 36 1.41 0.29J 1.91 3.21 4.8J MW-H Deep 9-May-12 0.74J 49.6J 0.181 3.41J 0.95J 5.67J 1.42J 2.911 13.2E 2.44J MW-H Deep 28-Nov-12 52.4J 1.28J 1.59J 0.96J 2.62J MW-H Deep 9-May-13 0.83J 43J 0.47J 2.2J 0.22J 1.451 6.98J MW-H Deep (dup) 9-May-13 0.24J 44.11 1.051 0.191 1.72J 0.22J 1.4J 3.34J 13.3 MW-H Deep 7-Nov-13 40.9J 0.28J 1.85J 0.23J 1.391 5.29JB MW-H Deep 8-May-14 55.OJ 0.10J 0.321 2.03J 0.371 1.631 3.89J MW-H Deep 6-Nov-14 49.91 0.081 1.33JB 1.45J 0.19J 2.001 4.18J 9.25JB MW-H Deep (dup) 6-Nov-14 49.4J 1.541E 0.501 1.74J 0.271 1.93J 6.321B MW-H Deep 5-May-15 1.84J 44.4J 0.29J 2.69J 0.38J 1.971 2.00J 2.00J MW-H Deep (dup) 5-May-15 1.42J 39.8J 0.13J 1.081 0.311 2.88J 0.371 2.261 3.23J MW-H Deep 29-Oct-15 45.9J 0.64J 1.49JB 0.23J 1.571 3.82CN,J 4.80J 3.06B-03,J MW-H Deep 19-May-16 1.10B-01,J 55.91 0.12J 0.871 2.36J 0.451 1.331 0.10J 5.45J 2.27J 1302-MSWLF- MW-H Deep 3-Nov-16 54.7J 1.14J 0.25J 0.891 CDLF-1998 MW-H Deep 11-May-17 50.51 0.76J 1.34J 0.441 1.23J 3.84J 7.30J MW-H Deep 1-Nov-17 53.0J 0.38J 0.82J 0.18J 0.801 4.12J 1.83J MW-H Deep 7-Jun-18 0.79J 61.9J 0.066J 1.4J 0.281 5.01 2.2J MW-H Deep 19-Dec-18 47.41 0.059J 0.29J 3.41 MW-H Deep 9-May-19 42.0 0.52J 1.11 0.171 0.83J 4.41 3.2J MW-H Deep 6-Nov-19 49.9 0.97J 1.6JB 0.30JB 1.7J 5.81 37.5B MW-H Deep 19-May-20 1.51 35.4 4.9J 0.88J 0.121 2.9J 1.11 5.2J MW-H Deep 24-Sep-20 1.2J 42 3.2J 1.7J 0.27J 1.7J 11 MW-H Deep 18-Mar-21 43 MW-H Deep 15-Nov-21 42 1.41 MW-H Deep (dup) 15-Nov-21 44 MW-H Deep 27-Apr-22 0.911 40 0.26J 7.7J MW-H Deep 17-Oct-22 51 0.16J 2.7J 2.8J 0.641 2.6J 5.8 3.7J MW-H Deep 17-Apr-23 53 1.4J 2.9J 1 11 1 2.2J 3.6J 8.8J CDWI Page 7 of 31 July 2023 Table 5a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 o MW-1 9-May-12 0.25J 17.6J 0.33J 1.801 0.20J 1.65J J 3.53J 11.5B MW-1 (dup) 9-May-12 16.2J 0.31J 1.71J 1.111 1 8.561B MW-1 28-Nov-12 0.30J 14.3J 0.73J 0.44JJ 2.49J 1.05JB MW-1 30-May-13 0.49J 17.8J 0.22J 0.07J 1.381E 0.341 0.79J 70.23J2.39J 1 3.39J MW-I 7-Nov-13 14.2J 0.12J 0.21J 0.591 1J 6.83J 2.611B MW-I 7-May-14 13.9J 0.13J 3.441E 0.77J 1 1.31J 1.531B MW-I 5-Nov-14 20.7J 0.16J 0.05J 0.82J 0.26J 0.9. J 2.55JB 1.70J MW-I 5-May-15 0.501 15.4J 0.17J 1.811 1.71J 0.331 1.851 1.86J MW-I 29-Oct-15 21.1J 0.21J 1.101 0.62J 0.28J 1.57J 4.40CN,J 4.71J 4.32B-01,J MW-I 19-May-16 0.37B-01,J 20.7J 0.20J 1.07J 0.331 1.751 3.09J 2.42J MW-I 3-Nov-16 24.2J 0.29J 0.07J 1.30J 0.55J 0.84J 1.43J 3.58J 1302-MSWLF- MW-I 11-May-17 26.3J 0.23J 0.08J 1.25J 0.55J 0.791 1.481 3.64J 2.45J CDLF-1998 MW-I 31-Oct-17 23.4J 0.23J 1.30J 0.39J 0.51J 1.21J 3.95J 3.01J MW-1 7-Jun-18 24.4J 0.181 0.351 1.OJ 3.11 2.6J MW-1 18-Dec-18 31.OJ 0.23J 0.15J 2.3J 0.64J 1.6J 3.9J 4.6J MW-I 9-May-19 17.8 0.181 1.2J 0.241 1.2J 4.91 3.3J MW-1 6-Nov-19 22.7 0.26J 1.7J 0.59JB 0.78J 1.91 9.21 8.41B MW-I 19-May-20 1.5JB 13.3 0.13J 0.131 M 1.01 0.201 7.4 4.71 7.4J MW-1 23-Sep-20 45 0.29J 4.7J 1.7J 0.991 5.7 7. 77.OJ MW-I 19-Mar-21 16 0.151 2.8J 2.81 3.7J MW-1 15-Nov-21 26 0.20J 2.2J 0.50J 1.7J 4.4J MW-1 27-Apr-22 0.591 12 2.1J 2.8J 2.9J MW-1 18-0ct-22 22 4.9J 4.9J MW-1 17-Apr-23 25 0.36J 2.OJ 0.951 1.51 2.71 56 MW-1 9-May-12 15.2J 1.64J 0.38J 1.41J 0.52J 2.76J 3.35J 15B MW-J 29-Nov-12 16.4J 1.39J 0.301 2.54J 0.301 1.201 3.93J 4.89J MW-1 8-May-13 10.6J 0.86J 0.31J 1.16J 0.27J 1.38J 4.81J 2.7J MW-J 6-Nov-13 17.8J 0.791 1.43J 0.911 2.281 21.4JB 4.73JB MW-1 7-May-14 31.6J 3.02JB 0.52J 1.41J 0.83J 2.03J 3.40J 4.24JB MW-J 4-Nov-14 27.4J 0.17J 1.45J 1.241 2.00J 1.161 3.541 9.58JB 6.38JB MW-1 6-May-15 10.7J 1.381 0.51J 2.00J 0.63J 2.48J 3.51J 3.36J MW-J 28-Oct-15 11.OJ 0.58E-01,J 0.451 1.64J 0.381 2.061 3.59CN,1 2.47J 5.911 MW-1 18-May-16 0.96J 28.2J 0.25J 3.11J 1.40J 1.62J 1.99J 3.55J 0.90J 12.OJ 6.86J MW-J 2-Nov-16 32.2J 0.28J 4.86J 2.51J 2.38J 2.74J 5.69J 1.66J 14.9J 11.0 1302-MSWLF- MW-1 9-May-17 18.81 0.111 1.66J 0.73J 0.97J 1.02J 2.04J 6.18J 4.41J CDLF-1998 MW-J 1-Nov-17 18.7J 0.13J 2.59J 0.921 0.981 1.24J 2.211 8.191 6.22J MW-1 7-Jun-18 1.2J 37.8J 0.35J 5.6J 2.91 2.5J 3.3J 6.01 19.11 14.6 MW-J 19-Dec-18 16.7J 0.14J 2.1J 0.911 1.31 2.51 7.21 6.9J MW-1 10-May-19 0.481 19.0 0.111 1.6J 0.70J 0.82J 0.93J 1.6J 7.41 6.3J MW-J 6-Nov-19 14.9 0.076J 2.5J 0.65J 0.921E 0.87J 2.7J 8.91 14.2E MW-1 20-May-20 1.3JB 15.6 0.082J 1.2J 0.48J 0.63J 0.83J 1.2J 6.1J 7.5J MW-J 24-Sep-20 21 2.OJ 1.2 2.51 7.0 30 MW-1 18-Mar-21 10 3.41 MW-J 18-Nov-21 16 2.5J MW-1 27-Apr-22 15 MW-J 18-Oct-22 16 2.3J 3.11 4.OJ MW-1 18-Apr-23 15 1.81 12 MW-K 9-May-12 35.2J 0.22J 7.591 2.98J 3.66J 1.92J 6.061 13.8J 20.1E MW-K 28-Nov-12 16.11 1.35J 0.28J 0.74J 0.28J 1.42J 2.53J 4.44JB MW-K 8-May-13 1.02JB 17J 0.15J 1.911 0.711 1.33J 0.691 2.241 6.05J 5.28J MW-K 6-Nov-13 13.9J 2.68J 0.76J 1.26J 0.43J 1.94J 23JB 4.68JB MW-K 7-May-14 17.5J 0.12J 4.27JB 0.49J 1.30J 0.70J 1.831 3.49J 2.46JB MW-K 5-Nov-14 13.3J 0.13J 1.21J 0.531 1.20J 0.431 1.97J 3.82JB 3.19J MW-K 5-May-15 1.42J 15.3J 0.14J 0.49J 1.991 0.71J 2.541 4.66J 2.95J 0.35J MW-K 29-Oct-15 26.2J 0.191 2.54E-01,J 1.161 2.41J 1.041 4.171 2.87CN,J 6.18J 5.60J MW-K 18-May-16 1.43J 17.8J 0.161 3.25J 0.891 1.03J 0.83J 2.28J 1.18J 8.681 5.35J MW-K 2-Nov-16 17.8J 0.16J 2.60J 0.871 0.94J 0.721 2.041 1.78J 4.01J MW-K(dup) 2-Nov-16 4.05J 1.31J 0.63J 0.18J 1.17J 1.08J 2.18J MW-K 9-May-17 0.47B-01,J 13.9J 0.101 1.901 0.47J 0.62J 0.411 1.59J 4.41J 1.92J 1302-MSWLF- MW-K 1-Nov-17 0.82J 20.2J 0.161 3.28J 1.23J 1.03J 0.87J 2.201 4.57J 6.21 CDLF-1998 MW-K 7-Jun-18 0.94J 0.881 13.8J 0.13J 2.2J 0.591 1.3J 2.2J MW-K 19-Dec-18 15.7J 0.31J 0.12J 2.OJ 0.49J 1.11 0.22J 4.01 2.6J MW-K 30-May-19 15.8 0.0891 1.81 1.01 0.231 1.2J 5.1J 3.7J MW-K 6-Nov-19 0.65J 20.1 0.17J 3.41 1.11 1.1JB 0.87J 2.41 13.1 9.OJB MW-K 20-May-20 1.6JB 22.1 0.17J 3.8J 1.11 0.891 1.1 2.4J 9.21 9.81 MW-K 24-Sep-20 35 0.261 4.8J 2.OJ 1.5J 1.3 4.4J 8.9 8.7J MW-K 18-Mar-21 30 1.51 0.311 1.5J MW-K(dup) 18-Mar-21 31 1.91 0.27J 1.31 2.5J MW-K 18-N0v-21 41 2.2J 4.11 MW-K 27-Apr-22 22 2.OJ 2.8J MW-K 17-Oct-22 13 2.1J 2.51 MW-K 17-Apr-23 28 1 0.19J I 4.7J 1.41 1 1.4 1 5.5 = 9.11 CDWI Page 8 of 31 July 2023 Table 5a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 o o r 1 700 1 4 1 2 1 10 1 1 1 1,000 1 15 1 100 1 20 20 1 2 1 7 1 1,000 MW-L 9-May-12 43.8J 1.20J 0.52J J 1.93J 2.16JB MW-L 28-Nov-12 0.82J 23.01 1.74J 0.321 0.391 6.47J 3.75J MW-L 9-May-13 1.24JB 43.5J 1.121 0.49J 0.83J J 2.9J 3.29J MW-L 7-Nov-13 49.2J 0.191 0.881 1.20J 2.49J 72.21J 21 11.5B MW-L 8-May-14 43.7J 0.07J 0.67J 81 1.95J MW-L 5-Nov-14 38.6J 0.76J 21 2.44J 2.281B MW-L 6-May-15 40J 0.811 7J 2.23J MW-L 28-Oct-15 33.51 1.051 0.291 71 4.04CN,1 2.87J 6.06E-01-1 MW-L 19-May-16 38.41 0.881 LOU 2.23J 1.48J MW-L 2-Nov-16 35.2J 1.00J 1.041 2.46J 1302-MSWLF- MW-L 10-May-17 0.56B-01,J 33.3J 1.011 0.49J 0.111 0.951 2.34J 2.80J CDLF-1998 MW-L 1-Nov-17 33.91 1.23J 1.30J 0.121 0.851 1.46J 1.87J MW-L 7-Jun-18 32.71 2.7J 60.9 MW-L 19-Dec-18 34.41 0.079J MW-L 8-May-19 41.0 2.9J MW-L 7-Nov-19 3.6JB 35.3 1.3J 0.37J 0.15JB 0.761 7.3JB MW-L 21-May-20 36.9 0.901 0.25J 0.951 4.2J MW-L 23-Sep-20 1.6J 42 1.41 3.3J 0.741 3.0J 18 MW-L 17-Mar-21 49 1.81 0.35J 2.1J 14.8J 3.3J MW-L 17-Nov-21 40 1.61 0.451 2.21 6.9J MW-L 26-Apr-22 110 0.70J 5.9J 6.2J 3.5J 2.8 11 29 MW-L 20-Oct-22 92 0.67 5.4 5.0 4.5J 2.0 10 1.61 0.16J24 MW-L 20-Apr-23 59 0.34J 2.9J 221 5.3 1.0 4.8J 10 MW-L Deep 9-May-12 0.62J 23J 2.031 0.83J 1.60J 0.681 3.14J 7.991E MW-L Deep 10-May-13 0.41J 19.2J 0.24J 1.891 0.27J 1.63J 2.08J 21.8 MW-L Deep 8-May-14 27.9J 1.341E 0.111 1.32J 6.06J MW-L Deep 6-May-15 0.36J 23.1J 0.901 1.24J 1.50J 2.45J 45.1 MW-L Deep 29-Oct-15 0.581 23.OJ 0.47E-01,J 1.23J 0.091 1.62J 3.73CN,J 81.1 MW-L Deep 19-May-16 0.46J 30.8J 0.44J 1.87J 0.17J 1.27J 4.59J 116 1302-MSWLF- MW-L Deep 30-May-17 0.93B-03,J 34.41 0.081 0.42J 0.66J 0.141 1.27J 4.73J 128 MW-L Deep (dup) 10-May-17 0.91B-01,J 33.9J 0.07J 0.40J 0.82J 0.15J 1.281 4.70J 123 CDLF-1998 MW-L Deep 7-Jun-18 32.1J 1.4J 2.41 352 MW-L Deep 8-May-19 0.901 34.3 1.81 3.61 396 MW-L Deep 21-May-20 0.95J 32.3 0.34J 1.51 2.6J 429 MW-L Deep 19-Mar-21 35 1.41 490 MW-L Deep 26-Apr-22 24 5.4J MW-L Deep (dup) 26-Apr-22 24 4.7J MW-L Deep 19-Apr-23 34 3.0) 1.3J 0.48J 4.41 12 MW-M 9-May-12 40.3J 0.26J 2.46J 1.38J 8.56J 3.07J 3.80J 11.81 15.2B MW-M 30-May-13 34.9J 0.161 1.44JB 0.691 2.21J 0.5J 1.68J 2.2J MW-M 8-May-14 37.1J 0.101 0.801 0.301 2.00J 0.63J 1.91J 2.42J MW-M 5-May-15 1.93J 39.41 0.881 2.02J 0.511 2.18J 4.07J 1.71J MW-M 29-Oct-15 38.91 0.101 1.56B-03,J 0.39J 2.10J 0.62J 2.10J 3.09CN,J 1.78J 4.96J MW-M 18-May-16 0.92J 38.81 0.60J 0.46J 1.60J 0.58J 1.47J 6.84J 1.54J 1302-MSWLF- MW-M 9-May-17 40.41 0.081 0.65J 1.50J 0.57J 1.181 4.65J 1.981 CDLF-1998 MW-M 7-1un-18 37.91 0.311 0.99J 4.OJ MW-M 10-May-19 49.1 1.7J 0.097J 0.90J 5. ]J 1.81 MW-M 19-May-20 1.3JB 36.7 0.14J 0.911 0.75J 2.7J 0.78J 1.91 5.51 4.61 MW-M 19-Mar-21 53 2.3J 0.711 1.41 2.6J MW-M 27-Apr-22 33 1.3J 0.47J 3.7J MW-M 20-Apr-23 27 1 0.35J 2.5J CDWI Page 9 of 31 July 2023 Table 5a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 o 10 MW-X 9-May-12 34.9J 1.52J 1.37J70.25J4.74J J 8.77JB MW-X 29-Nov-12 29.31 1.801 0.331 1.311 J 5.191 2.171B MW-X(dup) 29-Nov-12 32.0J 3.20J 0.75J 1.54J J 5.63J 4.82JB MW-X 8-May-13 1.531B 35.41 0.77J 0.731 1.81 1 3.12J 4.55J MW-X 6-Nov-13 24.1J 1.12J 0.35J 1.04J J 18.216 3.96JBMW-X 7-May-14 37.01 0.051 4.91J6 0.731 1.25J 1 4.70J 3.841B MW-X 5-Nov-14 26.8J 2.58JB 0.36J 0.97J 7J 31.21 2. 13 MW-X 6-May-15 28.91 1.86J 0.32.1 2.68J 0.21.1 4.331 2.51J 1.42J MW-X 29-Oct-15 27.8J 2.08E-01,J 1.29J 4.65J 3.24CN,J 1.74J MW-X 18-May-16 0.861 32.01 1.71J 0.521 0.68J 0.341 4.38J 6.501 2.22J MW-X 2-Nov-16 32.3J 1.70J 1.60J 0.29J 3.56J 2.69J MW-X 9-May-17 30.41 1.31J 0.71J 0.28J 4.031 3.84J 3.22J 1302-MSWLF- MW-X 1-Nov-17 29.6J 1.78J 0.68J 0.23J 2.64J 5.37J 2.68J CDLF-1998 MW-X 7-Jun-18 37.41 0.12J 4.3J 0.901 1.51 0.62J 5.01 31.71 4.5J MW-X 19-Dec-18 28.5J 3.2J 3.3J MW-X 10-May-19 27.3 1.01 2.4J 0.191 3.1J 5.5.1 MW-X 6-Nov-19 0.49J 26.1 1.7J 0.97.113 0.22JB 2.5J 8.81 6.9JB MW-X 19-May-20 0.801B 26.8 1.41 0.67J 0.191 2.3J 5.5.1 4.3J 0.37J MW-X(dup) 19-May-20 1.11E 26.1 1.4J 0.691 0.16J 2.5J 5.4J 4.1J MW-X 22-Sep-20 0.64J 26 2.1J 2.3J 18 MW-X 18-Mar-21 26 2.1J 2.5J MW-X 18-Nov-21 29 1.6BJ 0.56J 2.91 3.5J MW-X 26-Apr-22 25 1.7J MW-X 17-Oct-22 40 0.20J 10 1.0 9.0 9.81 MW-X(dup) 17-Oct-22 22 1.6J MW-X 17-Apr-23 25 L I 2.6J 3.7J Notes: 1. All units are in micrograms per liter (parts per billion). 2. Monitoring wells M W-3 Deep, -L Deep, -and -Mare sampled annually during the spring event. 3. (dup) - Duplicate 4. Assessment Wells CD-4, CD-5, and CD-6 were installed in September 2006. CD-4 and -5 were abandoned in July 2010. CD-6 was abandoned in February 2017. S. Assessment Wells AMW-1s, -1d, -2s, and -2d were installed in October 2009. 6. MW-9 was removed from the monitoring program in November 2012. CD-1s/CD-1d replaced MW-9 as the background monitoring wells. 7. M W-E Rep was not sampled during the November 2012 sampling event due to laboratory oversight. 8. J - Indicates the analytical result is an estimated concentration between the method detection limit and the adjusted reporting limit. 9. B/B-01- Indicates constituent was detected in the batch blank above the method detection limit. 10. CN - Detected silver concentrations were determined to be the result of contamination from the preservative acid used. 11. D3 - The sample was diluted due to matrix interference. Concentration exceeds the 15A NCAC 02L.0202 (North Carolina 2L). - Indicates the result is below the detection limit or not analyzed. Smth Page 10 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Smth Page 11 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Smth Page 12 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Smth Page 13 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Smth Page 14 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Smth Page 15 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Smth Page 16 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Smth Page 17 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 MW-D 8-May-12 7 0.3J 2.71 6.2 1.31 56 - 1 IJ 1.71 5.3 0.81 - MW-D 27-Nov-12 6.5 0.3J 1.1J 6.4 1.31 54 - 1.5 0.71 0.2J 5.3 4.0 0.6J - MW-D 8-May-13 6.8 0.4J 1.6J 8.4 1.21 56 - 0.81 1.2 2.7J 5.9 0.7J - MW-D 5-Nov-13 7.2 0.51 1.81 9.3 1.01 57 - 0.81 1.81 4.6 0.91 -- MW-D 6-May-14 5.1 0.41 1.1J 7.8 0.71 39 - 3.31 3.9 0.61 -- MW-D 4-Nov-14 6.9 0.51 0.91 10 0.91 53 0.21 - 0.41 1.51 4. 0.61 -- MW-D 5-May-15 5.9 0.61 7.3 0.51 38 0.21 - 1.81 0.51 -- MW-D 28-Oct-15 5.3 0.91 8.1 0.51 37 - 1.51 2.7 0.61 -- MW-D 17-May-16 5.0 0.71 9.9 39 - 1.7J 2.8 -- MW-D 2-Nov-16 6.5 0.81 1.31 12 0.51 48 - 3.21 2.6 1.1 -- MW-D 9-May-17 5.1 0.91 8.8 35 - 2.5 0.81 - 1302-MSWLF- MW-D I-Nov-l7 5.9 0.81 1.51 10 0.41 41 - 3.9J 2.3 - CDLF-1998 MW-D MW-D 7-Jun-18 19-Dec-18 5.4 2.7 0.93J 0.721 0.691 11.1 10.9 0.41J 36.0 30.5 - 0.62) 2.6 1.6 - 0. -- MW-D 9-May-19 4.2 1.0 1.1 9.1 23.4 1.3 0.67J -- MW-D 5-Nov-19 5.3 1.1 0.751 9.4 26.3 - 1.0 0.911 -- MW-D 20-May-20 2.3 0.601 6.4 12.8 - 0.90) 0.63) -- MW-D 24-Sep-20 4.2 0.80 0.70 5.3 12 - 0.41) 0.90 1.9 -- MW-D idup) 24-Sep-20 4.1 0.74 0.68 4 8 11 - 0.41) 0.86 2.0 -- MW-D 18-Mar-21 2.8 0.481 0.491 29 3.1 - 1.4 -- MW-D IS-Nov-21 4.2 0.69 0.46HJ 3.8 7.4 - 0.67 1.8 -- MW-D 27-Apr-22 3.9 0.71 0.57 44 6.6 - 0.68 1.7 - MW-D l7-Oct-22 4.0 0.97 0.54 2 a 6.2 8.0 - 6.0 1.4 1.3 0.57 2.0 - MW-D 17-Apr-23 4.5 1.4 0.75 8.3 12 - 0.911 1.0 2.4 - MW-D)dup) 17-Apr-23 4.2 1.3 0.61 7.9 11 0.761 0.92 2.1 MW-E Rep 8-May-12 2.5 2.41 5.71 13 23 1.1 47 0.91 1.1 - 0.41 0.31 1.8 .6 - MW-E Rep 8-May-13 1.3 2.781 3.71 14 19 0.71 21 0.71 1.2 - 0.51 4.4 - MW-E Rep 5-Nov-13 2.3 3.2 3.71 I6 19 1.2 41 0.71 - 1.0 7.6 - MW-E Rep 6-May-14 2.9 3.2 2.91 I6 14 1.0 53 0.71 1.0 - 0.21 1.4 9.3 - MW-E Rep 4-Nov-14 1.5 4.1 3.61 IB 15 1.1 43 0.71 - 1.0 7.5 - MW-E Rep 5-May-15 3.4J 0.81 3.1 4.21 0.3J IS 8.8 1.01 25 0.41 1.1 - 0.51 3.8 - MW-E Rep 27-Oct-15 yQ 3.9 5.11 0.3J IS 9.0 1.1 27 0.41 - 0.61 4.3 - MW-E Rep 18-May-16 0.81 2.31 7.61 8.2 0.91 12 0.91 - 3.2 - MW-E Rep 1-Nov-16 0.61 3.2 8.01 IS Il 1.1 18 0.51 - 4.5 - MW-E Rep 9-May-17 0.7J 3.0 6.21 14 5.9 0.7J 18 0.51 0.81 - 3.5 - 1302-MSWLF- MW-E Rep 31-Oct-17 0.6J 3.1 2 IS 5 1.2 21 0.78011 - 4...4 MW-E Repp Il-Jun-18 0.673J 28 51 10.3MW 0. - 29CDLF-1998 - ER 20-Dec-18 0761 3.28 6.3 2.51 22.1 031 0.811 2.0 3.06 - MW-E Repp 7-May-19 5. 6.4 2 . 70.73 2.5 4 - R 5-Nov19 52J 1.8 1.3 0 81 2.7����MW-E 4.6 -- MW-E Rep 21-May-20 0.361 5.6 1.3 0.911 17.1 0.621 3.5 -- MW-E Rep 23-Sep-20 0.491 2.4 3.5 1.8 0.85 17 0.43J 0.64 3.9 -- MW-E Rep 17-Mar-21 0.60 1.7 1.0 1.2 0.68 9.7 2.8 -- MW-E Rep 17-Nov-21 0.46J 2.4 4.7H 8.2 1.3 0.80 11 0.43J 0.72 2.7 -- MW-E Rep 26-Apr-22 0.56 3.5 5.4 15 1.3 0.97 12 0.471 0.82 3.4 -- MW-E Rep 19-Oct-22 0.68 2.3 5.1 13 1.2 0.91 8.5 0.431 0.73 3.0 -- MW-F Reo IS-Aur-23 0.82 3.3 5.9 0421 13 1.1 0.77 8.1 0.411 0.]I 3.2 -- Smth Page 18 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Smth Page 19 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Smth Page 20 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 to E MW-HDeep S-May-12 - 3. - MW-H Deep 28-Nov-12 - 0.41 - MW-HDeep 8-May-13 - - MW-H Deep(dup) 8-May-13 - - MW-HDeep 7-Nov-13 - - MW-HDeep 7-May-14 - - MW-HDeep 5-Nov-14 - - MW-H Deep(dup) 5-Nov-14 - - MW-HDeep 5-May-15 - - MW-H Deep(dup) 5-May-15 - - MW-HDeep 28-0ct-15 - - MW-HDeep 18-May-16 - - 1302-MSWLF- MW-HDeep 2-Nov-16 - - CDLF-1998 MW-HDeep MW-HDeep 10-May-17 I-Nov-17 - - - - MW-HDeep 7-Jun-I8 - 0.57) - MW-HDeep 19-Dec-18 0.94) - MW-HDeep 8-May-19 0.52) - MW-HDeep 5-Nov-19 - - MW-HDeep 19-May-20 - - MW-HDeep 24-Sep-20 - - MW-HDeep 18-Mar-21 - - MW-HDeep 15-Nov-21 - - MW-H Deep(dup) 15-Nov-21 - - MW-HDeep 26-Apr-22 - - MW-HDeep 17-Oct-22 - - MW-HDeep 17-Apr-23 MW-I 8-May-12 3.31 0.21 0.81 - 0.41 2.8 1.1 0.71 MW-1(dup) 8-May-12 3.31 0.31 0.91 - 0.41 2.6 1.1 0.71 MW-1 27-Nov-12 4.01 0.31 0.91 - 1.2 2.4 1.1 - MW-I 9-May-13 3.61 1.31 - 0.41 2.8 1.4 0.W MW-1 7-Nov-13 3.91 1.31 - 0.41 2.8 1.4 0.W - MW-1 6-May-14 4.71 0.21 1.41 - 2.9 1.4 0.W MW-I 4-Nov-14 4.91 0.41 1.7) - 3.4 1.7 0.W - MW-1 5-May-15 4.41 1.41 - 0.41 3.1 1.5 0.W MW-1 28-Oct-15 4.61 1.91 - 3.2 1.5 0.51 - MW-I 18-May-I6 3.91 1.81 - 2.9 1.1 0.51 2.11 MW-1 2-Nov-I6 4.61 1.01 2.01 - 0.61 3.5 1.3 0.81 - 1302-MSWLF- MW-1 10-May-17 4.31 2.11 - 0.51 2.9 1.6 0.W CDLF-1998 MW-1 31-0ct-17 5.5 2.71 - 3.0 2.0 0.71 - MW-I 7-Jun-I8 5.7 1.11 3.61 - 1.0 1.8 1.7 MW-1 I8-Dec-18 6.9 5.2 1.1 3.3 2.1 - MW-1 8-May-19 6.9 4.5 0.61) 3.6 2.4 MW-1 5-Nov-19 f� 4.2 - 2.9 1.9 - MW-I 19-May-20 2.6 1.7 - 1.1 0.731 MW-1 23-Sep-20 3.9 2.3 - 1.8 1.2 MW-1 19-Mar-21 1.8 0.90 - 0.75 0.55 3.31E MW-I 15-Nov-21 2.1 1.1 - 1.1 0.67 - M W-I 27-Apr-22 0.66 - 0.55 2.61 MW-1 I8-0ct-22 0.461 - 0.461 - MW-1 17-Apr-23 3.3 2.5 1.0 0.81 Smth Page 21 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 MW-1 S-May-12 3. — — MW-1 28-Nov-12 — 0.81 — MW-1 7-May-13 — — MW-1 5-Nov-13 — — MW-1 6-May-14 — — MW-1 4-Nov-14 — — MW-1 6-May-15 — — M W-1 27-0ct-15 — — MW-1 17-May-16 — — MW-1 I-Nov-16 — — 1302-MSWLF- MW-1 9-May-17 — — CDLF-1998 MW-1 MW-1 I-Nov17 7-Jun-18 — — — 0.65) — MW-1 19-Dec-18 MW-1 9-May-19 — MW-1 5-Nov-19 0.72J — — MW-1 20-May-20 — — MW-1 25-Sep-20 — — MW-1 18-Mar-21 — — MW-1 I8-Nov-21 — — M W-1 27-Apr-22 — — M W-1 I8-Oct-22 — — M W-1 I8-Apr-23 MW-K 8-May-12 0.41 — — MW-K 27-Nov-12 1.61 0.31 — 0.71 0.31 0.3J — MW-K 7-May-13 1.31 — 0.41 — MW-K 5-Nov-13 — — MW-K 6-May-14 0.51 — — MW-K 4-No 1.11 0.51 — — MW-K 5-May-15 0.61 — — MW-K 28-Oct-15 1.41 0.81 — 0.41 — MW-K 17-May-16 — — MW-K I-Nov-16 0.61 0.61 — — MW-K)dup) 1-Nov-16 0.51 0.91 0.61 — — 1302-MSWLF- MW-K 9-May-17 8.6J — — CDLF-1998 MW-K MW-K I-Nov-17 7-Jun-I8 — — 0.73) — — MW-K 19-Dec-18 MW-K 9-May-19 — MW-K 5-Nov-19 — — MW-K 20-May-20 — — MW-K 24-Sep-20 — — MW-K 18-Mar-21 — — MW-K)dup) 18-Mar-21 — — MW-K I8-Nov-21 — — MW-K 27-Apr-22 1.9 — — MW-K 17-Oct-22 2.1 — — MW-K 17-Apr-23 3.1 Smth Page 22 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 MW-L 9-May-12 - - MW-L 28-Nov-12 11 1.01 1.11 - 1.2 2.5 2.4 - MW-L 9-May-13 - - MW-L 7-Nov-13 - - MW-L 8-May-14 - - MW-L 5-Nov-14 - - MW-L 6-May-15 - - MW-L 28-0ct-15 - - MW-L 19-May-16 - - MW-L 2-Nov-16 - - 1302-MSWLF- MW-L 10-May-17 - - CDLF-1998 MW-L MW-L I-Nov17 7-Jun-18 0.91 0.41 - - 0.56) - - MW-L 19-Dec-18 MW-L 8-May-19 - MW-L 7-Nov-19 0.911 - - MW-L 21-May-20 - - MW-L 23-Sep-20 - - MW-L 17-Mar-21 - - MW-L 17-Nov-21 - 0.481 - MW-L 26-Apr-22 26 2.4 8.3 - 1.0 16 5 1.6 - MW-L 19-Oct-22 0.61 - 1.1 - MW-L 19-Apr-23 0.55 MW-LDeep 8-May-12 5.8 0.41 0.61 - 0.41 1.4 1.2 0.61 - MW-LDeep 9-May-13 1.21 1.81 - 0.91 16 .1 1.5 - 6.8 MW-LDeep 8-May-14 0.41 0.51 0.81 - 2.2 1.7- MW-LDeep 6-May-15 5.6 0.51 0.61 - 0.41 3.5 1.8 0.61 - MW-LDeep 29-Oct-15 4.61 0.61 - 2.2 1.5 0.51 - MW-LDeep 19-May-16 3.21 - 2.0 0.91 - 1302-MSWLF- MW-LDeep 10-May-17 3.81 - 2.1 CDLF-1998 MW-L Deep)dup) MW-LDeep 10-May-17 7-Jun-I8 3.71 6.4 0.97J 5.3 - 1.0 1.7 1.1 0.381 - - MW-LDeep 8-May-19 5.4 3.3 1.0 0.651 - MW-LDeep 21-May-20 5.0 2.9 - - MW-LDeep 19-Mar-21 4.8 1.6 0.61 - MW-LDeep 26-Apr-22 - 0.69 - MW-L Deep)dup) 26-Apr-22 18 1.6 7.9 - 0.64 10 1 1.1 - MW-LDeep 19-Apr-23 0.53 2.9 15 0.431 0.6 13 .7 1.5 MW-M 8-May-12 0.91 - 0.31 - MW-M 9-May-13 1.11 - 0.51 - MW-M 8-May-14 MW-M 5-May-15 1.01 - 0.4J - MW-M 28-0ct-15 0.91 - - 1302-MSWLF- MW-M 17-May-16 0.81 - - CDLF-1998 MW-M MW-M 9-May-17 7-Jun-I8 0.61 0.64J - - 0.53) - - MW-M 9-May-19 1.2 2.2 0.381 - MW-M 19-May-20 0.481 - MW-M 19-Ma121 I.S MW-M 27-Apr-22 1.4 0.44) MW-M 20-Apr-23 0.63 Smth Page 23 of 31 July 2023 Table 5b Detected Groundwater Constituents - Volatile Organic Compounds April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Noter. 1. All units are in micrograms per liter (parts per billion). 2. Monitoring wells MW-3 Deep, -L Deep, -and -M are sampled annually during the spring event. 3. (dup) - Duplicate 4. Assessment Wells CD-4, CD-5, and CD-6 were installed in September 2006. CD-4 and -5 were abandoned in July 2010. CD-6 was abandoned in February 2017. 5. Assessment Wells AM W-ls, -1d, -2s, and -2d were installed in October 2009. 6. MW-9 was removed from the monitoring program in November 2012. CD-1s/CD-1d replaced MW-9 as the background monitoring wells. 7. M W-E Rep was not sampled during the November 2012 sampling event due to laboratory oversight. S. (--) - Not analyzed. Bis(2-ethylhexyl)phthalate is sampled at CD -Is, -1d, M W-C, -E Deep, -H, -I, and AM W-2d during the spring sampling event. 1,4-Dioxane was not added to the sampling program until July 1, 2018. It was removed from the sampling program for CD -Is, -1d, -4 Rep, MW-3, -3 deep, -A, -C, -D, -H deep, -I, -1, -K, A, -L deep, AMW-Is, -1d, -2s, and -2d after two consecutive non -detect events. 9. • - Interim Maximum Allowable Concentration (IMAC) 10. J - Indicates the analytical result is an estimated concentration between the method detection limit and the adjusted reporting limit. 11. B - Indicates constituent was detected in the batch blank above the method detection limit. 12. Iu1- H3 Flag - The sample was received or analysis was requested beyond the method holding time. 13. Icel - MI Flag -The matrix spike recovery exceeded ..alit, control limits. The value was accepted based on laboratory control sample recovery. 14. I1°I - R1 Flag -The relative percent difference value was outside control limits. 15. L- Laboratory control spike/laboratory control spike detection failure. 16. —"" -Volatile organic compounds were not analyzed due to laboratory error. Concentration exceeds the 15A NCAC 02L.0202 (North Carolina 2L) Groundwater Standard or IMAC - Indicates the result is below the detection limit. Smth Page 24 of 31 July 2023 Table Sc Detected Surface Water Constituents - Volatile Organic Compounds and Metals April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 SW-1 9-May-12 SW-1 28-Nov-12 82.11 SW-1 10-May-13 SW-1 5-Nov-13 1.061 139 SW 5-May-14 1.801 146 0.371 SW 3-Nov-14 SW-1 5-May-15 0.891 69.2J SW 29-0ct-15 SW 19-May-16 3.52J 157 1.44 SW 1-Nov-16 66.61 1302-MSWLF-CDLF- 1998 SW-1 SW-1 30-May-17 31-Oct-17 SW 7-Jun-18 0.701 57.6J 0.052J SW 18-Dec-18 SW-1 9-May-19 66.9 SW 6-Nov-19 59.1 SW 19-May-20 65.4 SW 25-Sep-20 49 0.24J SW 19-Mar-21 61 SW 17-Nov-21 SW-1 28-Apr-22 SW-1 20-Oct-22 46 SW-1 I 19-Apr-23 SW-2 9-May-12 65.31 SW 28-Nov-12 0.97J 78.91 SW-2 10-May-13 SW 5-Nov-13 1.451 137 0.051 SW-2 6-May-14 SW 3-Nov-14 1.881 67.0J SW 5-May-15 73.213-01,1 SW 29-Oct-15 1.691 81.11 0.101 SW-2 19-May-16 2.351 89.01 0.941 SW 1-Nov-16 94.71 1302-MSWLF-CDLF- 1998 SW-2 SW-2 30-May-17 31-Oct-17 0.991 42.91 SW 7-Jun-18 SW 18-Dec-18 0.63J 71.8J 0.11J SW 10-May-19 83.8 SW 6-Nov-19 0.621 83.9 SW-2 19-May-20 0.691 100 0.231 SW-2 25-Sep-20 2.7 91 0.77 SW 19-Mar-21 37 0.301 SW-2 17-Nov-21 SW-2 28-Apr-22 SW-2 20-Oct-22 51 SW-2 DRY DRY 3.79J 2.011 0.161 6.301 2.0519.521 !n.13RJ 1.75J 0.091 8.51J 2.85J 0.12J 11.7 6.341 3.58BJ 9.791 2.831 14.41 DRY DRY 1.011 1.721 5.091 4.39J 2.93CN,1 W.I. 25.1 14.8 17.21 5.331 0.081 65.2 DRY DRY 1.81 2.6J 2.0J 0.34J 4.4J 3.2J 4.91 0.761 &W 1.31 0.161 5.1 1.3J 3.91E 0.38J 5.013 0.064JB 2.9J 0.058J 6.5JB 0.711 1.91 1.51 0.211 4.51 3.11 4.5J 1.91 7.2 24M 4.5J 8.6 13 2.91 1.7J 4.3J 1.3 7.4 3.5J 19 DRY DRY DRY DRY DRY 4.4 2.1 8.7 5.9 9.9 1.2I 3.291 3.651 1.52B1 6.99J 3.681 7.111 24.5 -- 12.7 0.571 0.051 1.42J 1.08J 5.15E-ol,l 6.01 3.161 1.211 6.341 3.401 1,361 0.69J 3.641 0.95J 4.601 6.50J 3.28CN,J 1.931 5.48J - 12.2 7.21) 11.9 8.73) 8.331 3.401 32.7 35.0 DRY DRY DRY 1.41 0.371 2.51 1.91 1.8J 1.91 3.1J 4.3J 3.61 2.5 1.8 2.3J 1.7J 5.1 2.81B 7.3 0.66J 0.351 3.3JB 0.22JB 2.7J 1.3J 7.1JB 3.8 3.5J 3.2J 4.1J 2.2 5.4 1.71 8.61 10.2 6.7 Jk5 4.81 38 8.8 8.8 2.7J 33 34 2.61 9.8 2.4 2.41 7.1 5.21 DRY i DRY 4.71 3.51 8.3 Notes. 1. All units are in micrograms per liter (parts per billion). 2. NS - No Standard 3. I'I - A Standard for total chromium has not been established. The value provided is for chromium (III). 4. IaI - North Carolina 15A NCAC 02B (INC 28) Fish Consumption Standard S. ISI - North Carolina In -Stream Target Value Freshwater Aquatic Life Standard 6. IsI - NC 2B Freshwater Aquatic Life Standard 7. nI - North Carolina In -Stream Target Value Fish Consumption Standard 8. (--) - Not analyzed. 1,4-Dioxane was not added to the sampling program until July 1, 2018. 9.1- Indicates the analytical result is an estimated concentration between the method detection limit and the limit of quantitation. 10. B - The analyte concentration detected in the method blank was greater than the method detection limit. J.1. CN - Detected silver concentrations were determined to be the result of contamination from the preservative acid. Concentration exceeds the INC 2B or In -Stream Target Value Freshwater Aquatic Life or Fish Consumption Standard for Class C Waters - July 2021 - Indicates the result is below the detection limit. M Smith 25 of 31 July 2023 Table Sd Geochemical Constituents in Groundwater April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facilty Permit Number 1302-MSWLF-CDLF-1998 o 1302-MSWLF- MW-9 3-May-11 3.45 139 <0.010 0.004 1.7 0.088 <0.05 0.14 0.1 <0.15 0.65 37 50 <0.5 <6 1.3 0.16J 0.0911 0.411 <0.6 3.1 CDLF-1998 MW-9 9-Nov-11 4.70 212 0.062 0.078 3.5 <0.07 <0.05 0.033 <0.05 <0.15 1.4 53 35 <2 11 1.3 0.91H 0.0941 0.26J <1 0.4B MW-9 9-May-12 1.82 127 0.11 0.012 6.7 0.038 <0.05 0.086 <0.05 <0.15 2.8 41 36 <0.002 <10 1.6 <0.2H 0.1801 <5 <0.2 0.484 CD-1s 7-May_12 __ __ __ __ __ __ __ __ __ __ __ __ 46 __ __ 3.9 CD-1s 27-Nov-12 15.56 139 <0.025 0.019 1.1 <0.07 0.029 <0.10 <0.05 <0.15 0.94 54 39 <2 <10 4.1 0 0.061 <5 <0.2 <1 CD-1s 7-May-13 1.96 206 0.21 0.14 3.8 <0.07 <0.05 0.055 <0.05 <0.15 0.82 30 42 <2 0.64 4 0.22 0.066J <5 <0.2 <1 CD-1s 5-Nov-13 1.74 348 0.0033 0.0037 0.33 0.034 0.056 0.20 <0.05 <0.15 0.74 15 30 <2 <10 3.8 2.42 0.082J <5 <0.2 <1 CD-1s 6-May-14 0.02 353 0.0032 0.010 3.4 0.037 <0.05 <0.10 <0.05 <0.15 0.94 54 42 <2 <10 3.8 0 0.0771 <5 <0.2 1.07 CD-1s 4-Nov-14 6.06 135 0.0061 0.011 1.8 0.041 <0.05 0.037 0.052 <0.15 1.7 62 41 <2 <10 3.9 0 0.065J <5 <0.2 <1 CD-1s 5-May-15 3.99 281 0.0034 0.016 0.060 0.081 <0.05 0.019 <0.05 0.034 26 42 38 <2 <10 3.8 0 0.1201 <5 <0.2 3.48 CD-1s 27-0ct-15 3.84 519 <0.10 0.012 0.12 0.036 0.0094 <0.20 0.0024 <0.30 40 61 43 <2 30.6 3.8 0 0.130J <5 <0.2 <1 CD-1s 17-May-16 3.45 245 <0.10 <0.30 0.048 0.020 <0.30 0.011 <0.30 <0.30 22 46 43 <2 <10 3.7 0 0.0791 1 <0.2 <1 CD-1s 1-Nov-16 4.49 360.2 0.0031 0.0099 0.84 0.038 0.0076 0.0090 <0.10 <0.10 3.1 60 46 <2 26.5 4.2 0 0.067Jts1 <5 <0.2 <1 CD-1s 9-May-17 1.69 274.6 0.0035 0.0026 0.50 0.035 <0.30 <0.20 <0.30 <0.30 7.8 48 49 <2 <10 3.6 0 0.076J 1.3J <0.2 <1 1302-MSWLF- CD-ls 31-0ct-17 1.87 58 <0.10 <0.10 0.181 <0.10 <0.10 <0.20 <0.10 <0.10 14 58 50 <2 14.6 4.2 0 0.066 1.01 <0.2 <1 CDLF-1998 CD -Is 11-Jun-18 3.8 124.1 0.036J 0.031J 15.00 0.031J <0.30 0.021J <0.30 <0.30 6.4 44 49 <2 <10 3.89 0 0.0820 0.9041 <0.2 <1 CD-1s 17-Dec-18 5.6 38.6 <0.30 <0.30 3.50 <0.30 <0.10 <0.20 <0.30 <0.10 420 46 46 <2 <10 3.72 0 0.146 0.9911 <0.2 <1 CD -Is 7-May-19 5.26 242.4 <0.0050 <0.0040 0.053J 0.032J <0.011 <0.043 <0.0040 <0.0050 2.5 50 43 <2 <10 2.93 0 0.359 12.6 <0.2 <1 CD-1s 5-Nov-19 1.49 197.0 <0.0050 <0.0040 0.18J 0.15 <0.011 0.091J <0.0040 <0.0050 28 61 43 <2 <50 3.75 0 0.134"' 2.161 <0.2 <1.0 CD-1s 18-May-20 4.3 -32.4 <1.00 <1.00 <2.00 <0.18 <0.089 <0.13 <0.065 <0.021 -lisl 166 49.1 <2 <10 4.57 0 0.254 4.28 <0.1 0.616J WAS 23-Sep-20 6.0 50.1 <10 <10 5.91 0.55 <0.058 <0.053 0.051 <0.060 0.731 96 51 <2.0 <20 5.5 0 0.21 2.5 <0.10 <1.0 CD-1s 17-Mar-21 3.98 -91.2 <10 <10 2.5BJ -- -- -- -- -- 0.991 27 53 <2.0 <20 1.0 0 0.42B 4.8 <1.0 <1.0 CD-Is 17-Nov-21 3.95 73.6 <2.5 <2.5 <2.5 3.0 <0.058 0.78 <0.053 <0.060 0.85J 150 50 <0.18 <20 9.4 0 0.32 1.1 <1 0.62J CD-1s 26-Apr-22 4.60 204.4 <10 <10 <10 0.26J <0.058 0.96 <0.053 <0.060 1.1J 100 52 <2.0 <20 9.2 0 0.29BH 1.0 <1 <1.0 CD-1s 18-0ct-22 4.74 155.1 <10 <10 5.2BJ161 -- -- -- -- -- -- 140 55 <2.0 <20 5.5 0 0.0965 0.67J <1.0 <1.0 CD-1s 19-Apr-23 5.99 146.2 <2.5 <2.5 5.9B1 _us) _ us) _ usl _ hei _I191 13 71 50 <20 9.0 0 0.22 0.53J <1.0 1.5 Mid 7-May_12 __ __ __ __ __ __ __ __ __ _ __ __ 50 __ __ 2.8 __ __ <5 CD-ld 27-Nov-12 9.53 140 -- -- -- -- -- -- -- - -- -- 46 -- -- 3 0 0.07J <5 -- -- Mid 7-May-13 1.11 242 0.015 0.015 0.31 0.021 <0.05 0.06 <0.05 <0.15 0.61 40 52 4 6.05 3 0.56 0.0691 <5 <0.2 1.42 CD-ld 5-Nov-13 1.71 320.1 -- -- -- -- -- -- -- -- -- -- 42 -- -- 3 -- -- <5 -- -- CD-ld 6-May-14 4.56 293 -- -- -- -- -- -- -- -- -- -- 46 -- -- 2.9 -- 0.077J <5 -- -- CD-ld 4-Nov-14 4.68 108.7 -- -- -- -- -- -- -- - -- -- 43 -- -- 3.1 0 - <5 -- -- CD-ld 5-May-15 4.84 186 -- -- -- -- -- -- -- -- -- -- 44 -- -- 2.9 0 0.086J <5 -- -- Mid 27-Oct-15 4.10 507 -- -- -- -- -- -- -- - -- -- 46 -- -- 2.9 0 -- <5 -- -- CD-ld 17-May-16 4.50 210 -- -- -- -- -- -- -- -- -- -- 96 -- -- 18.0 0 <0.05 14 -- -- CD-1 1-Nov-16 3.10 330 -- -- -- -- -- -- -- -- -- 52 -- -- 3.4 0 -- <5 CD-ld 9-May-30 1.51 257.2 -- -- -- -- -- -- -- -- -- -- 53 -- -- 2.8 0 -- 3.7J -- -- 1302- Mid 31-Oct-17 2.85 37 -- -- -- -- -- -- -- -- -- 52 -- -- 3.3 0 0.0791 3.31 -- -- CDLF-1998F-1998 CD-ld 12-Jun-18 2.9 54.2 -- -- -- -- -- -- -- -- -- -- 51 -- -- 3.2 0 -- 3.33J -- -- Mid 17-Dec-18 3.6 25.1 -- -- -- -- -- -- -- - - -- 53 -- -- 3.11 0 -- 3.36J -- -- CD-ld 7-May-19 1.61 183.2 -- -- -- -- -- -- -- -- -- -- 52 -- -- 2.84 0 0.0808 3.14J -- -- Mid 5-Nov-19 1.84 190.7 -- -- -- -- -- -- -- - -- -- 48 -- -- 3.14 0 -- 3.071 -- -- Mid 18-May-20 2.4 31.5 -- -- -- -- -- -- -- -- -- -- 54.3 -- -- 2.45 0 -- 2.63 -- -- Mid 22-Sep-20 4.18 70.4 -- -- -- -- -- -- -- - - -- 53 -- -- 3.1 0 -- 2.0 -- -- CD-ld 16-Mar-21 5.04 -68.8 -- -- -- -- -- -- -- -- -- -- 53 -- -- 3.1 0 -- 2.5 -- -- CD-1 17-Nov-21 3.37 67.9 - -- - -- -- -- -- - -- -- 51 -- -- 3.3 0 -- 2.6 -- -- CD-ld 26-Apr-22 0.72 196.2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0 -- -- -- -- CD-ld 18-Oct-22 4.20 126.9 -- -- -- -- -- -- -- -- -- -- 59 -- -- 3.4 0 -- 2.5 -- -- CD-ld I 19-Apr-23 1 4.30 1 148.4 1 -- - -- -- - -- - - -- 53 1 1--1 3.3 1 0 1 2.1 11 -- Smith Page 26 of 31 July 2023 Table Sd Geochemical Constituents in Groundwater April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facilty Permit Number 1302-MSWLF-CDLF-1998 o AMW-1s 7-May-12 0.02 121 0.043 0.047 1,300 0.061 <0.05 0.089 <0.05 <0.15 82 300 105 <0.002 <10 3.2 <0.2H <0.004 <0.18 <0.2 28-Nov-12 3.81 44 0.064 0.031 1,000 <0.07 <0.05 <0.10 <0.05 <0.15 1.1 280 92 <2 <10 3.1 0.3 <0.05 <5 <0.2AMW-15 8-May-13 0.34 523 0.11 0.054 1,600 0.029 <0.05 0.073 <0.05 <0.15 0.69 260 87 <2 14.4 3.5 0.11 <0.05 <5 <0.2AMW-1s 6-Nov-13 1.05 149 0.11 <0.025 1,400 0.041 0.061 0.15 0.015 <0.15 0.85 270 107 <2 <10 3.6 0.34 <0.05 <5 <0.2AMW-15 FO.524AMW-1s 7-May-14 0.02 400 0.095 <0.025 1,200 0.054 <0.05 0.026 0.036 <0.15 0.86 280 105 <2 <10 3.4 0 <0.05 <5 <0.2AMW-1s 5-Nov-14 3.25 132.2 0.15 0.015 1,000 0.055 <0.05 0.031 0.053 <0.15 1.7 280 120 <2 <10 3.7 0 <0.05 <5 <0.2AMW-15 7-May-15 2.00 592 0.2 0.0073 1,600 <0.07 <0.05 0.031 <0.05 <0.15 12 311 96 <2 <10 3.5 0 <11.5 <5 <0.2 AMW-1s 29-Oct-15 2.68 253 0.21 0.0064 1,100 0.028 0.0052 0.0094 0.0022 <0.10 8.2 300 10.5 <2 <10 3.7 0 <0.05 0.221 <0.2 <1 AMW-15 18-May-16 3.77 222 0.17 <0.10 1,000 0.015 <0.10 0.0072 <0.10 <0.30 1.5 210 85 <2 <10 3.8 0 <0.05 <5 <0.2 1.44 AMW-1s 2-Nov-16 1.65 377.2 0.13 0.0064 820 0.044 <0.10 0.0092 <0.10 <0.10 6 270 100 <2 23.6 3.3 0 <0.05 <5 <0.2 <1 AMW-15 10-May-17 1.54 148.6 0.25 0.0046 1,400 0.062 <0.10 <0.20 <0.10 <0.30 2.0 280 121 <2 25.1 4.2 0 <0.05 0.23J <0.2 <1 1302-MSWLF- AMW-1s 1-Nov-17 2.39 227 0.0971 0.030J 600 <0.10 <0.10 <0.20 <0.10 <0.10 3.1 200 93 <2 <10 3.5 0 <0.05 0.421 <0.2 <1 CDLF-1998 AMW-15 8-Jun-18 0.5 566.1 0.14 <0.10 1,200 0.0381 <0.10 <0.20 <0.10 <0.10 5.4 280 383 <2 <10 2.99 0 <0.0500 <0.5 <0.2 <1 AMW-1s 19-Dec-18 0.7 510.5 0.24 <0.30 1,600 <0.30 <0.30 <0.20 <0.30 <0.30 5.6 260 115 2.28 <10 3.57 0 0.0360J 0.2931 <0.2 <1 AMW-15 8-May-19 1.80 90.3 0.21 <0.0040 1,300 <0.025 <0.0070 <0.048 <0.0020 <0.0050 1.6 230 92 <2 <10 3.92 0 0.137 0.336J <0.2 <1 AMW-1s 6-Nov-19 0.94 228.1 <0.10 <0.10 130 <0.10 <0.10 <0.20 <0.10 <0.10 1.4 170 67 <2 <50 3.32 0 0.145 0.346J <0.2 <1.0 AMW-15 18-May-20 0.8 92.4 <1.00 <1.00 321 <0.18 <0.089 <0.13 <0.065 <0.021 -'19) 515 105 <2 5.54J 3.01 0 <0.0100 <0.5 <0.0500 22.2 AMW-1s 23-Sep-20 0.42 61.3 <10 <10 790 0.481 <0.058 <0.053 0.054J <0.060 0.771 160 95 <4.0 <20 3.1 0 0.014J <1.0 <0.10 <1.0 AMW-15 18-Mar-21 0.67 -168.0 <10 <10 23 0.30J <0.058 <0.053 <0.053 <0.060 -'is) 68 51 <2.0 <20 2.1 0 0.032B <1.0 1.3 1.0 AMW-ls 17-Nov-21 0.93 89.4 <2.5 <2.5 7.1 2.4 <0.058 0.44J <0.053 <0.060 2.01 170 50 4.5p ) <20 2.5 0 0.23 0.39J <1 0.86J AMW-1s 26-Apr-22 0.41 228.8 <10 <10 1,100E 0.20J <0.058 0.63 <0.053 <0.060 4.5 340 110 <2.0 <20 3.5 0 0.053BH1 <10 <1 <1.0 AMW-1s 19-0ct-22 1.15 138.2 <10 <10 270B16) 0.26J <0.058 0.45J <0.053 <0.060 3.3 240 100 <2.0 <20 3.2 0 0.0101 <1.0 <1.0 <1.0 AMW-1s 18-Apr-23 2.61 141.4 <2.5 <2.5 1,100E 0.67 <0.058 0.50 0.10J <0.060 1 14 1 230 1 120 <0.18 <20 3.7 0 <0.050 <0.25 1 <1.0 I <1.0 AMW-1d 7-May-12 0.24 95 0.17 1.7 2,500 0.097 <0.05 0.11 <0.05 <0.15 480 270 230 6 <10 6.6 1.91H 0.006J 151 <0.2 4.11 AMW-1d 28-Nov-12 7.00 169 0.15 1.8 2000, 1.9 <0.05 <0.10 0.039 <0.15 0.511 240 265 4 30.2 6.4 1.8 <0.05 9.2J 0.434J 3.02 AMW-1d 8-May-13 0.46 -53 0.32 1.6 3,800 0.054 <0.05 0.089 0.028 <0.15 1 300 375 4 8.99 7.1 3.3 <0.05 12J <0.2 4.95 AMW-1d 6-Nov-13 1.40 -22.7 0.28 1.1 3,400 0.033 0.066 0.12 <0.05 <0.15 0.96 290 315 <2 19.7 5.6 2.91 <0.05 6.41 <0.2 3.4 AMW-1d 7-May-14 2.05 -28 0.32 0.82 3,700 0.082 <0.05 0.047 0.032 <0.15 1.3 330 230 2 <10 5.6 5 <0.05 <5 <0.2 2.16 AMW-1d 5-Nov-14 1.36 -67.7 0.33 1.3 3,000 0.34 <0.05 0.042 0.077 <0.15 2.0 320 375 2 44.9 5.4 4.0 <0.05 <5 0.241J 2.15 AMW-1d 7-May-15 1.78 -52 0.5 2.2 3,400 0.15 <0.05 0.014 <0.05 0.035 7.3 320 230 2 35.2 5.4 2.0 <0.5 <5 <0.2 3.41 AMW-1d 29-Oct-15 2.55 -42 0.79 4.0 4,000 0.27 0.0061 0.011 0.0050 <0.10 8.2 330 255 90) <10 5.5 2.5 <0.05 <5 <0.2 2.67 AMW-1d 18-May-16 1.51 -28 2 2.2 3,700 0.021 <0.10 <0.20 <0.10 <0.10 1.8 300 225 <2 13.2 5.9 3.0 <0.05 <5 <0.2 2.93 AMW-1d 3-Nov-16 1.73 199.2 2.2 3.4 3,900 0.045 <0.10 0.0083 <0.10 <0.10 19.0 350 215 10 41.6 5.9 2.0 <0.05 <5 <0.2 3.42 AMW-1d 10-May-17 1.59 -6.7 3.9 2.2 3,700 0.047 <0.10 <0.20 <0.10 <0.10 2.5 280 225 10 29.6 6.1 7.0 <0.05 0.0651 <0.2 2.27 1302-MSWLF- AMW-1d 1-Nov-17 3.51 159 3.6 1.6 4,000 <0.10 <0.10 <0.20 <0.10 <0.10 2.9 280 230 <2 20.0 6.3 3.0 <0.05 0.47J <0.2 2.64 CDLF-1998 AMW-1d 8-tun-18 3.2 21.3 1.3 0.75 1,900 0.043J <0.10 <0.20 <0.10 <0.10 1.7 260 223 <2 <10 5.26 0 <0.0500 0.5791 <0.2 1.02 AMW-1d 19-Dec-18 0.5 1.8 2.6 1.5 3,500 <0.30 <0.10 <0.20 <0.30 <0.30 11 360 202 <2 <10 7.18 6.0 0.0170J 0.573J <0.2 1.02 AMW-1d 8-May-19 1.71 91.1 1.4 0.73 2,700 0.038J <0.0070 <0.048 0.00651 <0.0050 1.3 300 145 2.12 <10 7.15 2.0 0.0220J 0.4801 <0.2 1.04 AMW-1d 6-Nov-19 1.04 173.0 <0.10 <0.10 190 <0.10 <0.10 <0.20 <0.10 <0.10 1.6 190 80 <2 <50 3.39 0 0.152 <0.2 0.314J <1.0 AMW-1d 18-May-20 2.5 -43.2 <1.00 <1.00 700 <0.18 <0.089 <0.13 <0.065 <0.021 J') 704 197 2.69 <5 5.95 5.5 <0.0100 <0.5 <0.0500 0.9281 AMW-1d 23-Sep-20 0.30 27.9 <10 <10 2,700 2.2J <0.29 <0.26 <0.26 <0.30 0.82J 270 200 4.7,7 <20 6.4 2 0.052HJ <1.0 <0.20 <1.0 AMW-1d 17-Mar-21 1.06 -164.2 <10 2.7J 990 0.33J <0.058 <0.053 <0.053 <0.060 -die) 380 200 <2.0 <20 6.4 2.5 0.042BHJ 0.391 1.1 1.1 AMW-1d 17-Nov-21 0.41 44.5 2.5J <2.5 1,600 4.9 <0.058 0.71 <0.053 <0.060 1.3J 590 190 3.7(") <20 6.6 2.5 0.0094J 0.25J <1 1.2 AMW-1d 26-Apr-22 0.36 40.9 <10 <10 2,300E 0.15J <0.058 0.79 <0.053 <0.060 1.81 340 230 <2.0 <20 7.4 0 0.038BH <10 <1 <1.0 AMW-ld 19-Oct-22 0.797 51.7 <30 27 1,000B(6) 0.21J <0.058 0.50 <0.053 <0.060 1,000 350 220 2.7(6) <20 7.7 0 0.00057JS 0.35J(6) <1.0 1.1 AMW-ld 18-Apr-23 1.59 52.9 <1 21 1,7008 1.2 <0.058 0.65 0.161 0.0921 12 420 210 <0.18 <20 9.0 3.0 <0.050 <0.25 <1.0 1.2 Smith Page 27 of 31 July 2023 Table Sd Geochemical Constituents in Groundwater April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facilty Permit Number 1302-MSWLF-CDLF-1998 o AMW-2s 8-May-12 0.42 195 0.014 0.022 0.34 0.042 <0.05 0.53 <0.05 <0.15 9.7 170 70 1.29 <10 3.4 <0.2H 0.12J <5 <0.2 29-Nov-12 5.36 38 <0.025 0.026 0.86 <0.07 0.025 <0.10 <0.05 <0.15 0.411 170 8 <2 <10 3.3 <0.2H 0.111 <5 <0.2AMW-2s 9-May-13 0.88 153 0.008 0.022 4.30 0.047 <0.05 0.11 <0.05 <0.15 0.87 160 46 4 13.5 3.5 0.43 0.13J <5 <0.2 AMW-2s 6-Nov-13 1.51 75.1 0.0045 <0.025 0.58 0.020 0.068 0.10 <0.05 <0.15 0.94 140 63 <2 15.8 3.5 0.55 0.161 <5 <0.2 F0.4418AMW-2s AMW-2s 7-May-14 2.08 114 0.022 0.0081 0.31 0.062 0.033 0.032 0.032 <0.15 25 180 60.6 <2 <10 3.6 0 0.16J <5 <0.2 AMW-2s 5-Nov-14 3.48 120.5 0.0054 0.014 0.20 0.036 <0.05 <0.10 0.048 0.046 1.4 180 95 <2 <10 3.6 0 0.171 <5 <0.2AMW-2s 6-May-15 3.50 562 0.0044 0.020 1.10 <0.07 <0.05 0.013 <0.05 <0.15 52.0 180 53 <2 <10 3.5 0 0.22J <5 <0.2 . AMW-2s 28-Oct-15 4.19 187 0.0048 0.056 0.26 0.026 0.0050 0.0087 0.0016 <0.10 8.0 160 64 <2 <10 3.7 0 0.241 <5 <0.2 1.15 AMW-2s 17-May-16 3.22 51 <0.10 0.012 4.60 0.017 <0.10 <0.20 <0.10 <0.30 1.9 180 65 <2 <10 3.4 0 0.29J <5 <0.2 <1 AMW-2s 1-Nov-16 3.38 235.1 0.0087 0.014 3.80 0.027 0.0073 0.0077 <0.10 <0.10 2.9 200 69 <2 25.8 3.7 0 0.31J"' <5 <0.2 1.02 AMW-2s 10-May-17 1.55 48.2 0.078 0.018 0.82 0.019 <0.10 0.019 <0.10 <0.30 7.3 160 720 <2 14 3.5 0.5 0.41J 0.33J <0.2 <1 1302-MSWLF- AMW-2s 1-Nov-17 4.42 280 0.0095J 0.018J 0.501 <0.10 <0.10 <0.20 <0.10 <0.10 8.5 150 74.0 <2 10 3.6 0 0.43 0.38 <0.2 <1 CDLF-1998 AMW-2s 8-Jun-18 2.2 162.2 0.14 0.066J 1.2 0.0281 <0.10 <0.20 <0.10 <0.30 2.9 150 257 <2 <10 2.79 0 0.362 <0.5 <0.2 <1 AMW-2s 20-Dec-18 2.9 101.3 <0.30 <0.30 <0.50 <0.30 <0.30 <0.20 <0.30 <0.30 12 160 71 <2 <10 3.22 0 0.452 0.7971 <0.2 1.31 AMW-2s 7-May-19 1.74 201.1 0.070J 0.36 17 0.036J 0.0078J <0.048 <0.0020 <0.0050 1.5 190 79 <2 <10 2.78 0 0.342 0.306J <0.2 <1 AMW-2s 6-Nov-19 1.06 197.2 <0.10 <0.10 <0.50 <0.10 <0.10 <0.20 <0.10 <0.10 1.0 160 71 <2 <50 3.35 0 0.45 0.549J <0.2 <1.0 AMW-25 19-May-20 2.2 24.1 <1.00 <1.00 <2.00 <0.18 <0.089 <0.13 <0.065 <0.021 -") 356 71.6 <2 <5 2.62 0 0.408 <0.5 <0.0500 0.759J AMW-2s 23-Sep-20 2.97 60.3 <10 <10 6.4J 0.50 <0.058 <0.053 <0.053 <0.060 0.861 120 74 <2.0 <20 2.8 0 0.30 <1.0 <0.10 <1.0 AMW-25 17-Mar-21 2.86 -176.4 <10 <10 3.1J -- -- -- -- -- 0.99J 320 72 <2.0 <20 320 0 0.25B <1.0 <1.0 <1.0 AMW-2s 17-Nov-21 2.41 78.0 <2.5 <2.5 <2.5 2.2 <0.058 0.51 <0.053 <0.060 1.01 320 66 <0.0018 <20 3 0 0.36 <0.25 <1 <1.0 AMW-2s 26-Apr-22 3.25 125.3 <10 <10 3.8BJ 0.13J <0.058 0.44J <0.053 <0.060 2.4 230 72 <2.0 <20 3.1 0 0.37BH <1.0 <1 <1.0 AMW-2s 19-0ct-22 3.66 143.3 3.8J 56 7.8BJ161 0.301 <0.058 0.58 <0.053 <0.060 2,200 160 70 <2.0 <20 2.9 0 0.29 <1.0 <1.0 <1.0 AMW-2s 18-Apr-23 4.09 195.6 <2.5 <2.5 B.OBJ 0.71 <0.058 0.56 0.099J <0.060 12 140 65 <0.18 <20 3.0 0 0.29 <0.25 <1.0 <1.0 AMW-2d 8-May-12 0.00 195 0.053 0.073 1 0.037 <0.05 0.087 <0.05 <0.15 31 98 80 <0.002 <10 3 <0.2H <0.05 <5 <0.2 0.932 AMW-2d 28-Nov-12 3.47 149 0.10 0.69 30 0.99 <0.05 <0.10 0.030 <0.15 0.68 110 79 <2 13.5 3.2 0.3 <0.05 <5 <0.2 <1 AMW-2d 9-May-13 0.36 126 0.013 0.049 1.1 0.1 <0.05 0.08 <0.05 <0.15 1.5 110 65 1.48 11.7 3 0.06 <0.05 <5 <0.2 <1 AMW-2d 6-Nov-13 1.40 137.7 0.0072 0.048 0.48 0.027 0.061 0.12 <0.05 <0.15 0.65 68 85 20.4 <10 3.1 0.16 0.181 <5 <0.2 <1 AMW-2d 7-May-14 3.88 95 0.0068 0.021 0.36 0.073 <0.05 0.033 0.030 <0.15 18 170 78.8 <2 <10 3.2 0.5 <0.05 <5 <0.2 <1 AMW-2d 5-Nov-14 4.19 103.5 0.016 0.016 0.27 0.04 <0.05 0.016 0.048 <0.15 1.3 100 130 <2 <10 3.3 0 <0.05 <5 <0.2 <1 AMW-2d 6-May-15 2.51 391 0.011 0.035 0.97 <0.07 <0.05 <0.1 <0.05 <0.15 23.0 200 90 <2 <10 3.4 0 <0.5 <5 <0.2 <1 AMW-2d 28-Oct-15 3.90 158 0.013 0.039 0.20 0.030 0.0075 0.0051 0.0024 <0.10 9.0 120 98 <2 <10 3.3 0 <0.05 <5 <0.2 <1 AMW-2d 17-May-16 2.69 88 0.023 0.012 0.49 0.036 <0.10 <0.20 <0.10 <0.10 1.0 160 110 <2 <10 3.5 0 <0.05 <5 <0.2 <1 AMW-2d 2-Nov-16 2.15 345.8 0.015 0.2 2.00 0.020 <0.10 0.075 <0.10 <0.10 2.3 230 110 <2 31.2 4.2 0 <0.05 <5 <0.2 <1 AMW-2d 30-May-17 1.47 37.0 0.080 0.29 6.9 0.020 <0.10 0.013 <0.10 <0.10 7.7 200 121 <2 <10 3.7 0 <0.05 0.321 <0.2 <1 1302-MSWLF- AMW-2d 2-Nov-17 3.20 151.0 0.020J 0.27 9.2 0.021J <0.10 <0.20 <0.10 <0.10 2.9 190 131 <2 <10 3.9 0 <0.05 0.521 <0.2 <1 CDLF-1998 AMW-2d 8-tun-18 0.6 13.9 0.0141 0.28 12.0 0.046J <0.10 <0.20 <0.10 <0.10 3.2 200 374 <2 <10 2.86 0 <0.0500 <0.5 <0.2 <1 AMW-2d 20-Dec-18 0.9 65.3 <0.30 <0.30 72 <0.30 <0.10 <0.20 <0.30 <0.30 16 240 137 <2 <10 3.4 1.5 <0.050 0.819J 0.272 <1 AMW-2d 7-May-19 2.55 165.2 0.0371 0.050J 0.251 <0.025 <0.0070 <0.048 <0.0020 <0.0050 1.7 150 132 <2 <10 3.59 0 <0.050 0.618J <0.2 1.04 AMW-2d 6-Nov-19 1.44 198.1 <0.10 <0.10 0.79 <0.10 <0.10 <0.20 <0.10 <0.10 2.7 97 142 <2 <50 3.63 0 0.0710 0.635J <0.2 0.84J AMW-2d 19-May-20 0.5 -22.9 <1.00 <1.00 43.9 <0.18 <0.089 <0.13 <0.065 <0.021 J') 530 140 <2 <5 2.82 1.0 <0.0100 0.508J <0.0500 0.7421 AMW-2d 23-Sep-20 0.37 12.7 <10 <10 21 0.56 <0.058 <0.053 <0.053 <0.060 0.581 140 130 <4.0 <20 3.2 0 0.023 <1.0 <0.10 <1.0 AMW-2d 17-Mar-21 0.41 -93.0 <10 <10 7.61 0.31J <0.058 <0.053 <0.053 <0.060 1.21 260 140 <2.0 <20 3.3 0 0.046B 0.26J <1.0 <1.0 AMW-2d 16-Nov-21 0.66 56.1 <2.5 <2.5 410 3.9 <0.058 0.48J <0.053 <0.060 1.4J 420 130 <0.18 <20 3.4 0 '0.0050 0.37J <1 <1.0 AMW-2d 26-Apr-22 0.44 71.9 <10 <10 2.8BJ 0.14J <0.058 <0.053 <0.053 <0.060 3.4 360 140 <2 <20 3.2 0 0.058BHJ <10 <1 <1.0 AMW-2d 19-Oct-22 0.58 36.4 <10 8., 130B'6) 0.311 <0.058 0.58 <0.053 <0.060 500 180 140 <2.0 <20 3.3 0 0.12 0.55J(6) <1.0 1.1(6) AMW-2d 18-Apr-23 1.15 99.2 <2.5 <2.5 230B 0.55 <0.058 0.52 <0.082 <0.060 17 250 1301 <0.18 1 <20 1 3.1 1 1.0 1 <0.050 1 0.271 I <1.0 I <1.0 CDM Smith Page 28 of 31 July 2023 Table Sd Geochemical Constituents in Groundwater April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facilty Permit Number 1302-MSWLF-CDLF-1998 o MW-3 8-May-12 2.76 113 <0.025 0.021 0.14 0.072 <0.05 0.13 <0.05 <0.15 1.5 100 60 <0.002 <10 3.6 0.3H <0.05 <5 <0.2 28-Nov-12 12.31 73 0.044 0.022 0.83 <0.07 <0.05 <0.10 <0.05 <0.15 1.1 120 91 <2 <10 3.2 <0.2H <0.05 <5 <0.2MW-3 9-May-13 1.88 188 0.018 0.0079 0.40 0.025 <0.05 0.082 <0.05 <0.15 1.6 82 52 <2 10.1 3.1 1.11 <0.05 <5 <0.2MW-3 7-Nov-13 1.99 301.1 0.0035 0.0075 0.34 0.049 <0.05 0.22 0.015 <0.15 1.4 110 69 26 28.1 3.4 0.83 <0.05 <5 <0.2 FO.303MW-3 MW-3 8-May-14 0.04 150 0.0062 0.030 0.16 0.080 <0.05 0.053 0.034 <0.15 1.1 140 63.6 6 <10 3.2 0 <0.05 <5 <0.2 MW-3 6-Nov-14 5.94 465.6 0.0040 0.015 0.30 0.045 <0.05 0.040 0.048 <0.15 1.6 140 61 <2 <10 3.3 0 <0.05 <5 <0.2MW-3 6-May-15 2.29 260 0.0085J 0.016 0.18 <0.07 <0.05 0.014 <0.05 <0.15 14 141 65 <2 76.2 3.4 0 <11.5 <5 <0.2 . MW-3 28-Oct-15 3.85 166 0.23 0.022 0.20 0.026 0.0058 <0.20 0.0016 <0.10 11 130 69 <2 <10 3.4 0 <0.05 <5 <0.2 <1 MW-3 18-May-16 3.18 101 <0.10 <0.10 0.87 0.015 <0.10 0.0092 <0.10 <0.30 9.6 120 75 <2 <10 3.7 0 <0.05 <5 <0.2 1.32 MW-3 2-Nov-16 3.50 438.8 0.020 0.021 0.72 0.031 <0.10 0.0082 <0.10 <0.10 1.9 130 60 <2 14.9 4.1 0 <0.05 <5 <0.2 <1 MW-3 11-May-17 1.75 229.6 0.0045 0.0087 0.33 0.052 <.010 0.0095 0.022 <0.30 9.1 140 78 <2 <10 3.9 0 <0.05 0.6J <0.2 <1 1302-MSWLF- MW-3 1-Nov-17 1.60 325 0.013J 0.022J 0.64 <0.10 <0.10 <0.20 <0.10 <0.10 2.4 120 80 <2 <10 4.2 0 <0.05 0.22J <0.2 <1 CDLF-1998 MW-3 7-Jun-18 3.7 130.6 <0.10 0.017J 0.35J 0.034J <0.10 <0.20 <0.10 <0.10 3.9 110 79 2.31 <10 3.89 0 0.0180J 0.137J <0.2 <1 MW-3 19-Dec-18 2.8 48.8 <0.30 <0.30 <0.20 <0.30 <0.30 <0.20 <0.30 <0.30 9.5 160 89 <2 <10 3.34 0 27.OJ 0.222J 0.381 <1 MW-3 8-May-19 1.81 114.5 0.070J 0.015J 0.13J 0.027J <0.0070 <0.048 0.0063J <0.0050 1.1 160 77 <2 <10 3.92 0.5 0.0250J 0.239J <0.2 <1 MW-3 6-Nov-19 1.22 208.6 <0.10 <0.10 <0.50 <0.10 <0.10 <0.20 <0.10 <0.10 1.4 120 82 <2 <50 5.1 0 0.172 0.25J <0.2 <1.0 MW-3 19-May-20 3.1 -16.5 <1.00 <1.00 <2.00 <0.18 <0.089 <0.13 <0.065 <0.021 -'19) 390 89.6 <2 <5 4.42 0 <0.0100 <0.5 <0.0500 <0.5 MW-3 23-Sep-20 4.8 30.8 <10 <10 3.71 0.53 <0.058 <0.053 0.0531 <0.060 0.58J 130 94 <2.0 <20 4.7 0 0.0151 <1.0 <0.10 <1.0 MW-3 17-Mar-21 3.65 -61.2 <10 <10 3.2J -- -- -- -- -- 0.93J 330 93 <2.0 <20 4.9 0 <0.020 <1.0 <1.0 <1.0 MW-3 17-Nov-21 2.37 75.3 <2.5 <2.5 <2.5 2.3 <0.058 0.56 <0.053 <0.060 2.4 220 91 <0.18 <20 6.6 0 0.0074J <1 <1 <1.0 MW-3 26-Apr-22 2.55 69.3 <10 <10 <10 0.13J <0.058 0.71 <0.053 <0.060 0.89J 180 100 <2.0 <20 5.5 0 <0.20 2.9J <1 <1.0 MW-3 19-Oct-22 2.96 59.3 <10 <10 2.6BP 0.44J <0.058 0.76 <0.053 <0.060 1.SJ 160 100 <2.0 <20 5.5 0 0.00911 <1.0 <1.0 <1.0 MW-3 19-Apr-23 4.17 127.3 a9i u9i ('s) 0.84 <0.058 0.68 0.16J <0.060 8.2 (19) 1 96 <0.18 <20 5.3 0 <0.050 <0.25 <1.0 <1.0 MW-A 9-May-12 0.00 103 0.11 0.027 8,000 0.16 <0.05 0.11 0.02 <0.15 3.2 560 146 6 <10 14 2.22H <0.05 <5 <0.2 0.364 MW-A 27-Nov-12 2.66 140 0.073 0.018 9,000 <0.07 <0.05 0.043 <0.05 0.071 4 530 127 8 13.3 19 0.60 <0.05 <5 0.228J 2.52 MW-A 7-May-13 0.25 -34 0.11 0.033 7,500 0.03 <0.05 0.07 <0.05 <0.15 0.54J 470 131 5 5.15 16 0.28 <0.05 <5 <0.2 2.62 MW-A 5-Nov-13 1.89 290.8 0.051 <0.025 8,000 0.028 0.044 0.11 <0.05 <0.15 0.84 530 128 6 <10 20 0.60 <0.05 3J <0.2 2.53 MW-A 6-May-14 0.04 -17 0.048 <0.025 11,000 0.21 0.077 0.026 0.050 <0.15 0.90 580 131 4 <10 29 2 <0.05 3.5J 0.232J 3.1 MW-A 4-Nov-14 1.70 45 0.082 0.019 10,000 0.038 <0.05 <0.1 0.048 <0.15 4.8 640 ill 2 <10 32 1 <0.05 4.41 <0.2 2.32 MW-A 5-May-15 2.34 26 0.080J 0.015 10,000 <0.07 <0.05 0.027 <0.05 <0.15 14.0 580 117 4 <10 28 1 <0.05 5.9J <0.2 3.15 MW-A 27-Oct-15 1.41 29 0.084 0.011 9,900 0.032 0.0066 0.013 0.0033 <0.10 7.2 600 123 11 <10 25 0.5 <0.05 7.41 <0.2 4.18 MW-A 17-May-16 1.27 -55 0.094 <0.30 11,000 0.21 0.084 0.0075 <0.30 <0.30 1.3 540 85 6 <10 18 1.0 <0.05 13J <0.2 3.68 MW-A 1-Nov-16 1.65 205 0.087 0.015 9,500 0.040 <0.10 <0.20 <0.10 <0.10 1.8 640 129 12(9) 33.8 27 1.5 <0.05 191 <0.2 3.28 MW-A 9-May-17 1.31 140.9 0.084 0.0087 8,300 0.088 0.0095 0.0078 0.0090 <0.30 8.0 530 143 14 42.9 27 1.0 <0.05 17J <0.2 3.22 1302-MSWLF- MW-A 31-Oct-17 3.21 70 0.085J 0.0065J 9,300 <0.20 <0.10 <0.20 <0.10 <0.10 1.9 450 132 13 35.2 27 0.5 <0.05 24 <0.2 3.22 CDLF-1998 MW-A 7-Jun-18 0.4 635 <0.30 0.011 6,100 0.0261 <0.10 0.050J <0.30 <0.30 73 480 136 <2 <10 24.1 1.5 0.01001 15.5 <0.2 20.5 MW-A 20-Dec-18 0.6 32.4 <0.30 <0.30 7,600 0.22 <0.10 <0.20 <0.10 <0.10 110 600 135 8.06 <10 2.39 3.5 0.01901 1.24 2.03 2.09 MW-A 9-May-19 1.91 76.7 0.038J 0.014J 5,100 1.0 <0.011 <0.043 0.019J <0.0050 1.3 290 109 6.96 <10 26.9 3.5 0.0230J 31.5 0.652 4.38 MW-A 5-Nov-19 1.56 54.4 0.068J 0.020J 10,000 0.24 <0.011 0.0521 0.0121 <0.0050 1.3 600 135 20 <50 25.6 2.0 0.2H1 21.4 <0.2 2.9 MW-A 19-May-20 0.2 -47.8 <1.00 <1.00 2,760 <0.18 <0.089 <0.13 <0.065 <0.021 _q') 1,010 126 6.83 9.25J 22.3 3.0 <0.0100 29.2 <0.0500 2.73 MW-A 23-Sep-20 0.4 -18.4 <10 <10 10,000 0.51 <0.058 <0.053 <0.053 <0.060 0.72J 320 140 13,7 <20 21 2.5 <0.020 18 <0.10 2.2 MW-A 17-Mar-21 0.62 -184.1 <10 <10 12,000 0.72 0.059J <0.053 <0.053 <0.060 _qq) 250 96 5.6 <20 22 2.5 0.044BHJ 18 <1.0 3.7 MW-A 16-Nov-21 0.58 17.3 <13 <13 12,000H 2.9 <0.058 0.351 <0.053 <0.060 1.7J 1,300 140 f,11) <20 20 2.0 <0.0050 11 <1 2.6 MW-A 27-Apr-22 0.39 64.0 <10 <10 11000BE 0.29J <0.058 0.62 <0.053 <0.060 1.61 670 160 <2 <20 20 0.0 <0.1 11 <1 1.9 MW-A 19-Oct-22 0.96 32.0 <10 <10 3,700B16) 0.49J <0.058 0.491 <0.053 <0.060 1.6J 480 160 5.9 <20 19 2.5 <0.20 14 <1.0 2.O(6) MW-A 19-Apr-23 1.99 79.4 _ 1i91 - 1 ) -y91 1.0 <0.058 0.73 0.15J <0.060 1 12 -('9' 1 140 <5.1 <20 19 0 <0.050 7.0 <1.0 1.9 CDM Smith Page 29 of 31 July 2023 Table Sd Geochemical Constituents in Groundwater April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facilty Permit Number 1302-MSWLF-CDLF-1998 o o MW-E Rep 8-May-12 0.00 13 4.6 0.33 2,200 0.048 <0.05 0.086 <0.05 <0.15 2.1 430 285 4 <10 30 8.22H <0.05 8.11 <0.2 0.317 MW-E Rep 8-May-13 0.47 -81 6.6 0.5 1,600 0.048 <0.05 0.072 <0.05 <0.15 0.56J 350 405 2 16.9 52 3.3 <0.05 <5 <0.2 4.89 MW-E Rep 5-Nov-13 1.64 -39.8 4.2 0.36 1,700 0.038 0.058 0.11 <0.05 <0.15 0.81 330 320 4.09 24.6 31 2.77 <0.05 5J <0.2 4.18 MW-E Rep 6-May-14 0.07 -24 2.6 0.27 2,400 0.095 0.091 0.15 0.048 <0.15 0.97 400 285 3 <10 28 5 <0.05 8.51 <0.2 4.08 MW-E Rep 4-Nov-14 1.62 -54 3.7 0.56 2,800 0.038 <0.05 0.051 <0.05 <0.15 1.4 430 610 3 <10 45 3.5 <0.05 111 <0.2 4.44 MW-E Rep 5-May-15 3.61 -38 3.4 0.47 1,700 <0.07 <0.05 0.036 <0.05 0.044 13 340 415 4 11 48 2.5 <0.05 111 <0.2 6.14 MW-E Rep 27-0ct-15 1.25 -36 4.1 0.73 2,300 0.038 0.0062 0.011 0.0026 <0.10 7.3 380 365 5 <10 48 2.0 <11.05 8.3J <0.2 4.12 MW-E Rep 18-May-16 1.40 -59 3.3 0.63 680 0.21 1 <0.20 0.021 0.014 1 250 425 3 <10 55 0.5 <0.05 61 <0.2 4.49 MW-E Rep 1-Nov-16 3.79 48.1 4.8 0.73 660 0.035 <0.10 0.0060 <0.10 0.012 2.3 370 475 <2 33.4 50 3.0 <0.05 78J <0.2 5.06 MW-E Rep 9-May-17 1.35 -50.7 3.2 0.55 730 0.077 <0.30 <0.20 <0.30 0.010 2.6 340 457 2 38 65 4.5 <0.05 6.41 <0.2 4.38 1302-MSWLF- MW-E Rep 31-0ct-17 2.48 65 4.0 0.58 600 0.020J <0.10 <0.20 <0.10 <0.10 3.8 280 484 <2 32 54 2.5 <0.05 6.6 <0.2 4.46 CDLF-1998 MW-E Rep 11-Jun-18 1.3 -26.2 2.1 0.44 420 0.0581 <0.30 0.0261 <0.30 <0.30 120 280 462 6 <10 56.4 4.5 <0.0050 5.87 <0.2 3.33 MW-E Rep 20-Dec-18 0.3 -16.1 2.9 0.63 830 <0.10 <0.10 <0.20 <0.10 <0.10 13 380 495 3.59 <10 49 6.0 0.0170J 6.81 <0.2 3.78 MW-E Rep 7-May-19 1.68 -1.9 3.0 0.60 930 0.035J <0.0070 <0.048 <0.0020 0.014J 1.7 420 510 <2 <10 46.6 4.25 <0.050 7.12 <0.2 3.65 MW-E Rep 5-Nov-19 0.77 26.5 2.5 0.68 460 0.035J <0.011 <0.043 <0.0040 <0.0050 1.1 400 489 <2 <50 54.6 2.5 0.0530B 6.75 <0.2 4.0 MW-E Rep 21-May-20 0.5 -25.2 <1.00 <1.00 42.2 1.1 <0.089 0.26 <0.065 <0.021 -'") 531 627 <2 13.3 54.2 2.5 <0.030 7.88 <0.050 4.35 MW-E Rep 23-Sep-20 0.29 -0.8 <10 <10 580 0.96J <0.12 <0.11 <0.11 <0.12 0.76J 620 530 <2.0 <20 39 3.5 <0.020 4.4 <0.10 3.2 MW-E Rep 17-Mar-21 0.40 -119.2 <10 <10 400 2.91 <0.58 <0.53 <0.53 <0.60 -(") 510 460 2.8 22 34 0 0.045BHJ 3.1 <1.0 3.9 MW-E Rep 17-Nov-21 0.34 29.2 2.7J <2.5 210 1.9 0.41J 0.92 <0.053 <0.060 1.1J 900 540 <0.18 <20 69 3.0 <0.0050 4.3 <1 4.6 MW-E Rep 26-Apr-22 0.26 17.9 <10 <10 280B <1.2 <0.58 <0.53 <0.53 <0.60 4.3 720 560 <2 <20 64 3.5 <0.020 2.9J <1 3.9 MW-E Rep 19-0ct-22 0.79 20.9 <10 <10 400B"' 0.26J <0.058 0.59 <0.053 <0.060 15 790 510 <2.0 <20 60 3.0 <0.020 4.7(6) <1.0 3.9 MW-E Rep 18-Apr-23 1.77 42.5 <2.5 <2.5 600B 3.71 <0.58 <0.53 0.901 <0.60 8.7 660 500 <0.18 <20 57 2.5 <0.050 3.1 <1.0 3.5 MW-E Deep 8-May-12 2.51 -76 7.5 0.11 14,000 0.84 <0.05 0.10 0.024 <0.15 3.3 160 305 24 22.6 27 4.03H <0.05 <5 <0.2 0.207 MW-E Deep 27-Nov-12 1.70 78 9.8 0.14 16,000 0.19 <0.05 0.034 <0.05 0.11 1.1 160 255 10 39.2 28 7H <0.05 <5 <0.2 1.37 MW-E Deep 8-May-13 0.51 -80 13 0.13 16,000 0.25 <0.05 0.066 0.028 <0.15 0.99 140 370 5 26.4 28 3.3 <0.05 <5 <0.2 2.3 MW-E Deep 6-Nov-13 1.21 -82.2 13 0.18 15,000 0.11 <0.05 0.16 <0.05 <0.15 1.5 170 345 5.97 23.1 31 3.3 <0.05 <5 <0.2 2.51 MW-E Deep 6-May-14 0.09 -41 4.6 0.13 19,000 120 20 <1 100 4.0 1.3 480 320 1,580 2,410 20 5.5 <0.05 <5 <0.2 432 MW-E Deep 4-Nov-14 1.09 -82.3 2.8 0.056 22,000 52 2.3 0.046 5.4 0.21 6.7 310 625 208 355 30 1.5 <0.05 <5 <0.2 41.6 MW-E Deep 5-May-15 0.88 -100 9 0.059 22,000 7.1 0.092 0.019 0.12 0.042 17 220 410 47 59.2 35 1 <0.50 <5 <2 8.26 MW-E Deep 27-Oct-15 1.20 -71 8.1 <0.50 26,000 2.4 0.085 <0.20 0.026 <0.30 8.7 170 415 36 22.4 34 3.0 0.13J <5 <0.2 4.52 MW-E Deep 18-May-16 3.08 -95 3.9 0.021 16,000 2.8 0.2 <0.20 0.064 0.012 2.3 130 <1 28 63.8 37 3.0 <0.05 <5 <0.2 6.34 MW-E Deep 1-Nov-16 2.30 -39 12 0.063 29,000 0.12 <0.30 <0.20 <0.30 <0.30 2.7 210 415 62.5 44 2.0 <0.5 <5 <0.2 3.16 1302-MSWLF- MW-E Deep 9-May-17 1.65 -78.5 8.2 0.067 21,000 0.073 <0.10 <0.20 <0.10 0.0099 3.6 190 395 26 70.7 49 5.0 0.51 0.151 <0.2 3.39 CDLF-1998 MW-E Deep 1-Nov-17 2.45 152 6.8 0.048J 17,000 0.18 <0.10 <0.20 <0.10 <0.10 2.1 170 407 8 60.6 53 3.0 <0.05 0.07E <0.2 5.22 MW-E Deep 11-Jun-18 0.4 -84 5.5 0.047J 13,000 0.089J <0.10 <0.20 0.00981 <0.10 2.0 160 398 25.4 16.9 49.2 5.5 <0.0050 <0.0170 <0.2 2.37 MW-E Deep 20-Dec-18 0.4 -56.2 6.6 0.10 11,000 <0.30 <0.10 <0.20 <0.30 <0.30 7.7 320 451 7.59 303 5.62 6.0 0.0170J <5 <0.2 5.34 MW-E Deep 8-May-19 1.88 -30.9 5.3 0.076J 10,000 0.082J <0.0070 <0.048 <0.0020 0.022J 2.7 360 468 129 <10 66.2 6.0 0.02301 0.09201 <0.2 8.1 MW-E Deep 5-Nov-19 NA NA 8.2 0.054J 14,000 0.064J <0.011 <0.043 <0.0040 0.0073J 2.1 280 492 2.33("' 58.7 70.2 NA 0.0130J(" 0.0970J <0.2 5.4 MW-E Deep 21-May-20 0.6 -21.8 2.11 <1.00 2,960 1.4 <0.089 0.73 <0.065 <0.021 J') 15.1 522 3.1 31.8 79.4 4.5 0.0108J <0.5 <0.050 9.37 MW-E Deep 23-Sep-20 0.27 -36.8 16 <10 12,000 2.4J <0.29 <0.26 <0.26 <0.30 0.74J 580 480 21,7 23 78 7.0 <0.020 <5.0 <0.10 6.3 MW-E Deep 17-Mar-21 0.91 -152.1 <50 <50 6,300 3.01 <0.58 <0.53 <0.53 <0.60 -M) 430 440 6.9 36 65 0 0.047BHJ <5.0 <1.0 7.8 MW-E Deep 17-Nov-21 0.40 -33.1 5.11 <2.5 9,600 2.1 0.131 1.2 <0.053 <0.060 1.81 640 420 8.3(" ) <20 58 4.5 0.39 <1.3 <3 4.7 MW-E Deep 26-Apr-22 0.19 -64.1 6.3J <10 8200BE <0.12 <0.058 1.2 <0.053 <0.060 20 520 450 6.6 <20 49 0 9.608HE <30 <1 2.8 MW-E Deep 19-Oct-22 0.42 -47.8 4.7J <30 4800B�s� 0.31J <0.058 1.1 <0.053 <0.060 2.1 580 400 6.1(5) <20 42 5.5 <0.020 0.25J(s� <1.0 2.3 MW-E Deep 18-Apr-23 1.32 -27.3 5.01 <2.5 1,200BH 3.71 <0.58 0.591 0.951 <0.60 11 540 420 <10 <20 42 2.0 <0.050 <0.25 CDM Smith Page 30 of 31 July 2023 Table Sd Geochemical Constituents in Groundwater April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facilty Permit Number 1302-MSWLF-CDLF-1998 o MW-L 9-May-12 0.04 214 <0.025 0.014 0.69 0.049 <0.05 0.11 <0.05 <0.15 1.1 98 37 <0.002 <10 2.6 <0.2H 0.096J <5 <0.2 0.342 MW-L 28-Nov-12 3.03 3 0.22 0.037 2.8 <0.07 0.033 0.066 <0.05 <0.15 0.431 72 90 <2 <10 2.7 <0.2H 0.052J <5 <0.2 <1 MW-L 9-May-13 1.09 188 <0.025 0.024 0.55 0.024 <0.05 0.085 <0.05 <0.15 1.2 79 28 1.91 2.22 2.7 0 0.061 <5 <0.2 <1 MW-L 7-Nov-13 1.39 258.1 <0.025 <0.025 0.059 0.034 <0.05 0.12 <0.05 <0.15 0.78 90 35 2 <10 2.8 0.61 0.0651 <5 <0.2 1.43 MW-L 8-May-14 2.12 379 0.0030 0.0038 0.042 0.063 <0.05 0.033 0.034 <0.15 0.79 100 34.3 <2 <10 2.8 0.5 0.061J <5 <0.2 <1 MW-L 5-Nov-14 4.03 59.2 0.0037 0.014 0.63 0.042 <0.05 0.058 0.049 <0.15 1.3 100 31 <2 <10 3.1 0 0.0831 2.8J <0.2 <1 MW-L 6-May-15 4.15 131 0.005 0.016 0.055 <0.07 <0.05 0.014 <0.05 <0.15 26 100 31 <2 11 2.7 0 <0.5 1.91 <0.2 <1 MW-L 28-Oct-15 3.80 89 0.0058 0.019 0.077 0.029 0.0081 <0.20 0.0022 <0.10 8.9 94 39 <2 <10 3 0 0.0541 1.51 <0.2 <1 MW-L 19-May-16 3.66 192 <0.10 <0.10 0.031 0.012 <0.10 0.0063 <0.10 <0.30 0.63 98 35 <2 10 2.8 0 <0.05 1.41 <0.2 <10 MW-L 2-Nov-16 3.49 486 0.028 0.013 0.8 0.029 0.0079 0.0062 <0.10 <0.10 1.7 87 40 <2 12.9 3.2 0 0.0851 <5 <0.2 <1 MW-L 10-May-17 1.40 128.9 0.046 0.011 0.24 0.021 <0.10 0.030 <0.10 <0.30 2.3 89 41 <2 <10 3 0 <0.05 0.95J <0.2 <1 1302-MSWLF- MW-L 1-Nov-17 1.61 361 0.0098J 0.0161 0.251 0.023J <0.10 <0.20 <0.10 <0.10 2.3 89 45 <2 <10 3.2 0 0.085 1.8J <0.2 <1 CDLF-1998 MW-L 7-Jun-18 1.2 141.2 0.0111 0.0171 0.23J 0.0441 <0.10 <0.20 <0.10 <0.10 13 94 34 <2 <10 2.94 0 0.0840 0.984J <0.2 <1 MW-L 19-Dec-18 2.7 100.4 <0.30 <0.30 0.93 <0.30 <0.30 <0.20 <0.30 <0.30 13 95 41 <2 <10 2.95 0 0.0770 0.988J <0.2 <1 MW-L 8-May-19 1.87 142.9 <0.0050 <0.0040 0.0571 0.0441 <0.0070 <0.048 <0.0020 <0.0050 1.6 77 36 <2 <10 2.68 0 0.0840 1.48J <0.2 <1 MW-L 7-Nov-19 1.54 240.6 <0.10 <0.10 <0.50 <0.10 <0.10 <0.20 <0.10 <0.10 1.2 79 40 <2 <50 3.3 0 0.268"' 2.15J <0.2 4.2 MW-L 21-May-20 2.0 -15.8 <1.00 <1.00 <2.00 <0.18 <0.089 <0.13 <0.065 <0.021 _u9) 164 40.6 <2 <5 2.5 0 0.0595 1 <0.050 1.12 MW-L 23-Sep-20 2.79 50.4 <10 <10 5.81 0.501 <0.058 <0.053 <0.053 <0.060 0.801 82 58 <2.0 <20 2.6 0 0.0161 0.76J <0.050 <1.0 MW-L 17-Mar-21 2.62 -91.2 <10 <10 <10 -- -- -- -- -- 1.4J 150 42 <2.0 <20 2.5 0 0.060B 0.951 <1.0 <1.0 MW-L 17-Nov-21 3.15 75.4 <2.5 <2.5 3.01 2.2 <0.058 0.84 <0.053 <0.060 2.5 27 43 <0.18 <20 2.9 0 0.066 1 <1 <1.0 MW-L 26-Apr-22 3.41 230.7 <2.5 <2.5 <2.5 0.201 <0.058 0.87 <0.053 <0.060 1.1J 120 45 <2.0 <20 3.0 0 0.088BH 0.610J <1 <1.0 MW-L 19-Oct-22 3.32 163.8 <10 <10 4.1BJ(s) 0.46J <0.058 0.82 <0.053 <0.060 1.11 140 48 <2.0 <20 2.9 0 0.075 1.0(6) <1.0 <1.0 MW-L 19-Apr-23 3.91 126.1 __(is) - u9) - (19) __(is) - (19) - u9) - (19) - (19) 11 _(19) 42 <0.18 <20 3.0 0 0.062 0.47J <1.0 <1.0 Notes: 1. Blank cells indicate parameter was below the detection limit. 2. (--) - Not Analyzed 3. Assessment wells AMW-1s, -1d, 2s, and 2d were installed in October 2009. 4. J - Indicates the analytical result is an estimated concentration between the method detection limit and the adjusted reporting limit. S. (s) - BOD-1,1 Flag- Indicates the dilutions selected for the BOD analysis based on screening COD values did not meet the oxygen depletion criteria of at least 2 mg/L dissolved oxygen depletion. The result is reported as an estimated value or non -detect at the elevated reporting limit. 6. "' - H, H-02, HI Flag - Sample was analyzed outside the U.S. Environmental Protection Agency recommended holding time. 7. B - Indicates constituent was detected in the method blank. 8. (s)- BOD-3 Flag - Lab control recovery was outside control limits biased low. Samples could not be reanalyzed due to holdingtime requirements. Sample values are reported as estimated values with possible low bias. 9. (9) - BOD-4 Flag - Lab control recovery was outside control limits biased high. Samples are reported as estimated with possible high bias. 10. ao) - R6 Flag -The relative percent difference between valid sample dilutions exceeded 30 percent. 11.""-7 Flag -The seed correction factor was above the method range. 12. mg/I -milligrams per liter/µg/I -micrograms per liter/mVolts - millivolts/N m - nanomoles 13. H I BA - Hydroxyisobutyric Acid 14. Alkalinity, chloride, ferrous iron, sulfate, and total dissolved solids were added to the sampling program in May 2010 for CD-1s and CD-1d. 15. The November 2012 sampling event was the first event that CD-1s/CD-1d replaced MW-9 as the background monitoring wells. 16. MW-9 was removed from the monitoring program in November 2012. 17. MW-E Rep was not sampled during the November 2012 sampling event due to laboratory oversight. 18. NA - Not available. The field sheet for M W-E deep was lost by field personnel during the November 2019 sampling event. 19. (19) - Samples were not analyzed due to laboratory error. 21. S - A matrix spike and spike duplicate failure occurred while analyzing CDM Smith Page 31 of 31 July 2023 Table 6 Constituents Detected Above Standards April 2023 Semi -Annual Sampling Event Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 Facility Permit Monitoring Well Code Parameters Exceeding North Carolina 2L Standard Monitoring Well Code Parameters Exceeding North Carolina 2L Standard Number Assessment Monitoring - April 2023 Assessment Monitoring - April 2023 1302-MSW LF- MW-9 Not Sampled MW-D Cobalt, Benzene, 1,4-Dichlorobenzene, Vinyl Chloride CDLF-1998 1302-MSWLF- CD-1s Cobalt, 1,4-Dichlorobenzene, 1,2-Dichloroethane, None Detected MW-E Rep CDLF-1998 (background well) 1,2-Dichloropropane, 1,4-Dioxane, Vinyl Chloride 1302-MSWLF- CD-1d Barium, Cobalt, Lead, 1,4-Dichlorobenzene, 1,2-Dichloroethane, 1,2- None Detected MW-E deep CDLF-1998 (background well) Dichloropropane, 1,4-Dioxane, Vinyl Chloride 1302-MSW LF- CD-4 Rep Cobalt MW-F 1,4-Dioxane CDLF-1998 1302-MSW LF- AMW-ls Vinyl Chloride MW-G Cobalt, 1,4-Dioxane CDLF-1998 1302-MSWLF- Antimony, Cobalt, Benzene, 1,1-Dichloroethane, AMW-1d MW-H None Detected CDLF-1998 1,2-Dichloroethane, Vinyl Chloride 1302-MSW LF- AMW-2s Tetrachloroethene MW-H deep None Detected CDLF-1998 1302-MSW LF- AMW-2d 1,1-Dichloroethane, Tetrachloroethene, Trichloroethene MW-I Tetrachloroethene CDLF-1998 1302-MSWLF- MW-1 Cobalt, 1,4-Dioxane MW-J None Detected CDLF-1998 1302-MSWLF- MW-3i31 None Detected MW-K Cobalt, Vanadium CDLF-1998 1302-MSWLF- MW-3 deep None Detected MW-L Cobalt, Vanadium, Tetrachloroethene CDLF-1998 1302-MSW LF- MW-Ai31 Cobalt MW-L deep 1,1-Dichloroethane, Tetrachloroethene, Trichloroethene CDLF-1998 1302-MSWLF- MW-B Cobalt, 1,4-Dioxane MW-M None Detected CDLF-1998 1302-MSWLF- MW-C None Detected MW-X None Detected CDLF-1998 Notes: 1. Bold -J Flag - Indicates the analytical result is an estimated concentration between the method detection limit and the limit of quantitation. 2. The November 2012 sampling event was the first event that CD-1s and -1d replaced MW-9 as the background monitoring wells. MW-9 was removed from the monitoring program in November 2012. 3. (3) - Volatile organic compounds were not analyzed from the April 2023 sampling event due to laboratory error. Smith Page 1 of 1 July 2023 Table 7 DHC Sampling Summary Cabarrus County Landfill Units 2 and 3 Facility Permit Number 1302-MSWLF-CDLF-1998 .. MW-E Rep 9-Jan-14 1,958 + 1.37E+06 + 1.81E+05 9.48E+05 + 8.02E+04 0.00E+00 + 0.00E+00 5.46E+02 + 1.02E+02 MW-E Rep 4-Mar-15 328 + 0.00E+00 + 0.00E+00 0.00E+00 + 0.00E+00 0.00E+00 + 0.00E+00 0.00E+00 + 0.00E+00 MW-E deep 9-Jan-14 3,524 + 1.38E+07 + 2.23E+06 7.85E+05 + 1.10E+05 0.00E+00 + 0.00E+00 2.84E+06 + 4.53E+05 M W-E deep 4-Mar-15 6,848 + 5.20E+03 ± 6.72E+02 9.00E+03 ± 8.24E+01 0.00E+00 ± 0.00E+00 7.06E+02 ± 1.28E02 AMW-1s 9-Jan-14 8,214 + 0.00E+00 + 0.00E+00 0.00E+00 + 0.00E+00 0.00E+00 + 0.00E+00 0.00E+00 + 0.00E+00 AMW-1s 4-Mar-15 538 + 0.00E+00 ± 0.00E+00 0.00E+00 ± 0.00E+00 0.00E+00 ± 0.00E+00 0.00E+00 ± 0.00E+00 AMW-1d 9-Jan-14 2,648 + 3.53E+03 + 3.17E+03 0.00E+00 + 0.00E+00 0.00E+00 + 0.00E+00 0.00E+00 + 0.00E+00 AMW-1d 4-Mar-15 1,716 + 1.03E+06 ± 1.12E+05 6.18E06 ± 2.89+05 0.00E+00 ± 0.00E+00 3.13E+04 ± 2.79+03 AMW-2s 9-Jan-14 1,917 + 3.09E+05 + 5.12E+04 1.24E+06 + 2.26E+05 9.61E+04 + 1.86E+04 5.66E+04 + 1.12E+04 AMW-2s 4-Mar-15 1,564 + 0.00E+00 ± 0.00E+00 0.00E+00 ± 0.00E+00 0.00E+00 ± 0.00E+00 0.00E+00 ± 0.00E+00 AMW-2d 9-Jan-14 1,320 + 8.81E+03 + 3.15E+02 0.00E+00 + 0.00E+00 0.00E+00 + 0.00E+00 0.00E+00 + 0.00E+00 AMW-2d 4-Mar-15 108 0.00E+00 ± 0.00E+00 0.00E+00 ± 0.00E+00 0.00E+00 ± 0.00E+00 0.00E+00 ± 0.00E+00 Notes: 1. PCR - Polymearse chain reaction 2. DHC - Dehalococcoides spp 3. * - A "+" inidicates that amplication of bacteria was successful. "-" indicates that ampification was not successful. 4. ng/L - Nanogram per liter 5. copy/L - Copy per liter Indicates the result is between the laboratory method detection limit and the reporting limit. Smt� Page 1 of 1 July 2023 N w + E s MW-X 700.78 MGW-1 733.51 'MGW-14' SW-3 ��\ 'i733.28 ,20 CD-4 Rep 3� \ C&D 1 731.70 1 ' CD-2\ 7z1s1 ,Landfill < 710� 706.09. 05.43 ��'. Unit 2 i A t-------_ Unit MGW-17,Mw-8F 710.71 A MW-J ' /MW-1 �710, -. 701.43. MGW-2 689.33 ` MW-10 - �```—,I / 693.79 / M\ / I 695.59 ADO MW-A / /MW-G MW-5 � f 704.50 / / 685.72 681.27 / MW - 90 -B s Unit 3 �7916 MGW-3 A MW 694. 6g0 MW-C /- 689.37 MW-y( / 682.49 AMW-lde / 673.71 / 672.58 AMW-1s / MW-H deep 672.22 AMW-2s 671.29 670 Scale in Feet 0 500 1000 Map Data Source: 2019 Aerial Photograph, Cahartus County; North Carolina OneMap. 673.95 , AMW-2d / 671.72 6� MW L 6 657.80 \680 SW-1 MW-11 678.92 LEGEND Groundwater Monitoring Well Surface Water Sample Location ® Landfill Gas Well Location Potentiometric Contour 680 — (dashed where inferred) Contour Interval = 10 Feet Legend Regoldh Monitoring Well Bedrock Monitoring Well Injection Well Notes 1. The Injection weft w stalled using ai -rmary citing mothers an October 59in, 2009. 2. The injection wells are spaced approximately 30 feet aped perpendicular to groundwater flow and have a radius of Influence of approximately 15 feet. 3. The surface area of the injection well netwed Is approximately SA00 real, 0. The Phase I injection event was completed on November 2-6, 2009. 5. The Phase II Njection event was compound an February 10-1 B, 2014. Nap Nato Suume: Febwary M15 Aerial Photograph, Cabanas County, North Carolina Onehfap. Figure 2: Injection Area Overview Scale (feet) Closed Landfill Units 2 and 3 cp Cabarrus County, North Carolina Smith 0 100 200 Figure 3 M H 450 400 350 300 250 200 150 100 50 0 Total Detected Volatile Organic Compounds Cabarrus County Landfill Units 2 and 3 M W-A Ln Ln lD lD I, n W W M M O O N N M M�-;t Ln V1 .o l0 I, r- w w m m O O r-I .--I N N M M Ln Ln l0 lD n n w w m m O O U L2 v Q Q U u Q u U U 0-U Q U Q U 0-U 0-U 0-U 0- :.) 0-U 0- {..% 0-U 0- U 0-U 0- c.> 0-U Q U Q v Q U 0-U 0- U Q UQ U Q U Q U Q v 0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0<0<0<0a0a0a0a0a0a0a0a0a0a0 Date Notes: CDM- 1. Only detections above laboratory method detection limits are represented in the figure. 2. Volatile organic compounds were not analyzed from the April 2023 sampling event due to Smth laboratory error. Figure 3 (MW-A) 70 50 M 41 H 20 10 El Figure 4 Total Detected Volatile Organic Compounds Cabarrus County Landfill Units 2 and 3 MW-3 00 W M M O O -1 -1 N N M M�'ZI- Ln Ln l0 l0 I, n W W m M O O c-I -1 N N M M t Ln Ln l0 l0 I, r- w W m M O O r-I -1 !V N O� T T T O O O O O O O O O O O O O O O O O O O O rl Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q 0 0 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 0 0 0 0 Q 0 Q 0 Date Notes: CDM 1. Only detections above laboratory method detection limits are represented in the figure. 2. Volatile organic compounds were not analyzed from the April 2023 sampling event due to Smith laboratory error. Figure 4 (MW-3) 200 180 ........... 160 MAK, a4 R 120 U 0 100 a� a� d 80 O H 60 40 20 0 .:I,Ln rn rn V Q OQ Smith Figure 5 Total Detected Volatile Organic Compounds Cabarrus County Landfill Units 2 and 3 MW-E Rep Phase I Emulsified Oil Injection — November 2009 Phase II Injection — February 2014 ....... ......... ......... ......... ......... ......... ......... ............ ... .. .. ..... cDcDnn0000rnrn00r r NNroro LnLncDcDnnwwrnrn00---r f�INMMI,LnLncflc0nr oMMMM00r r f�INM Q] O] Q] O] T O] T O] O O O O O O O O O O O O O O O O O O O r- rF r- rF r- rF r- rF r-I rF r- rF r- rF r- rF r- rF r- rF N N N N N N N Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q V Q Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q 0 Q Date Note: Only detections above laboratory method detection limits are represented in the figure. Figure 5 (MW-E Rep) H 180 160 140 120 100 80 60 40 FIR 0 Figure 6 Total Detected Volatile Organic Compounds Cabarrus County Landfill Units 2 and 3 MW-E deep Ol O O ci r-i N N M M Ln Ln lD lD I, n W CO m M O O ci r-I fJ N M M m Ln lD lD r- n CO W M M O O ci ci fV rJ M M 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 —1 .--� ci .--1 .1 r-i .--I —I .--i .j r-i .1 .1 .1 —1 rl -1 N N fV N N N N U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q o a o Q o Q o a o Q o Q o Q o Q o Q o Q o Q o a o Q o Q o Q o Q o Q o Q o Q o Q o a o Q o a o Q Date Note: Only detections above laboratory method detection limits are represented in the figure. Total VOC t PCE f TCE f DCE O—VC Figure 6 (MW-E Deep) M H 70 60 50 20 10 0 M O a �+ 0 Smith Figure 7 Total Detected Volatile Organic Compounds Cabarrus County Landfill Units 2 and 3 AMW-Is O O 1-1 .--I N N M M ItT 1:T Ln V1 l0 110 I, n 00 00 M 0) O O c-I c-I N N M c-I ci ci c-I ci ci c-I c-I ci ci c-I c-I ci c-I c-I ci ci c-I ci ci N N N N N N N ++ U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q Q O Q O Q O Q O Q O Q O Q O Q O Q O Q O Q O Q O Q O Q Date Note: Only detections above laboratory method detection limits are represented in the figure. Figure 7 (AMW-1s) 120 100 80 M 0 40 20 WE Figure 8 Total Detected Volatile Organic Compounds Cabarrus County Landfill Units 2 and 3 AMW-1d Phase I Emulsified Oil Injection — Phase II Injection — November 2009 February 2014 T 01 O O ci ci N N M M V Ln1 Ln l0 l0 I, n 00 00 O 01 O O ci ci N N M O c-I ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci c-I N N N N N N fV U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q o Q o Q o a o a o Q o a o a o Q o a o Q o Q o Q o a o a Date Note: Only detections above laboratory method detection limits are represented in the figure. Figure 8 (AMW-1d) co H 35 30 25 10 5 Figure 9 Total Detected Volatile Organic Compounds Cabarrus County Landfill Units 2 and 3 AMW-2s Phase II Injection — February 2014 IV \A Phase I Emulsified Oil Injection — November 2009 O 0) O O ci ci N N M M V 't V1 u1 l0 l0 I- n 00 00 Ol M O O ci ci N N M O -1 -1 ci ci ci ci ci -1 ci -1 c-I c-I -1 c-I 1-1 c-I c-I 1-1 -1 c-I N N N N N N N U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U o Q o Q o a o a o Q o a o a o Q o a o Q o Q Q o Q o a o a Date Note: Only detections above laboratory method detection limits are represented in the figure. Figure 9 (AMW-2s) Figure 10 Total Detected Volatile Organic Compounds Cabarrus County Landfill Units 2 and 3 AMW-2d 80 Phase I Emulsified Oil Injection — Phase II Injection — November 2009 February 2014 70 60 41 30 H 10 0 D1 O O r-I c q N N M M �t V Ln Ln lD lD I, n 00 00 O1 Q1 O O r-1 1-1 N N M O U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q o a o a o a o a o a o a o a o a o a o a o a o a o a o a Date CIDM SmithNote: Only detections above laboratory method detection limits are represented in the figure. Figure 10 (AMW-2d) MW-J ND MW-X ND MW-C ND CD-1s CD-1d' . 4,A ND ND(, C&D Landfill 1 CD-4 Rep 10 4.43,11 ' ' -50 / .�.. MW-1 Unit 2 72.26 10 1 1 r 1 \ I � � � 1 1 1 ' � � MW-G ' 1 MW-A 29.95 NA 1 � MW-g ` 20.00 Unit 3 ' sw , ' - 50 MW-D MW-F i 31.26 Injection Area 10.18 1 \ MW-E Re 41.1.33 1 MW-E deep 3.10 _� sw-z AMW-1s MW-H 3.98 MW-I ND AMW-1d 7.61 25.70 MW-H deep \ I.-- MW-3 ND AMW-2s \� NA 4.86 MW-3 deep AMW-2d 0.91 38.41 MW-L deep MW-L 70.69 0.55 MW-M 0.63 Map Data Source: 2019 Aerial Photograph, Cabarrus County, North Carolina OneMap. Borrow Area LEGEND Groundwater Monitoring Well Surface Water Sample Location Total Volatile Organic 10 _ Compound Concentration Contour (values in pg/L) (dashed where inferred) Appendix A aceAnalytical Report of Analysis CDM Smith 5400 Glenwood Avenue Suite 400 Raleigh, NC 27612 Attention: Mathew Colone Project Name: Cabarrus County LF-Units 2 & 3 Lot Number:YD19013 Date Completed:05/24/2023 06/20/2023 11:35 PM Approved and released by: Project Manager II: Cathy S. Dover r``�9 a[ceFo f�A4W- TN I AN81 Nauvnaf Acrreafmfwn BaaN 11 � eOfFAi� A C C R E C I T E O TEST14G LABORATORY The electronic signature above is the equivalent of a handwritten signature. This report shall not be reproduced, except in its entirety, without the written approval of Pace Analytical Services, LLC. Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 Tel:803-791-9700 Fax:803-791-9111 www.pacelabs.com Page 1 of 231 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 Case Narrative CDM Smith Lot Number: YD19013 This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary following this Case Narrative. The sample receiving date is documented in the header information associated with each sample. All results listed in this report relate only to the samples that are contained within this report. Where sampling is conducted by the client, results relate to the accuracy of the information provided, and as the samples are received Sample receipt, sample analysis, and data review have been performed in accordance with the most current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace") Laboratory Quality Manual, standard operating procedures (SOPS), and Pace policies. Any exceptions to the TNI standards, the Laboratory Quality Manual, SOPS or policies are qualified on the results page or discussed below. Pace is a TNI accredited laboratory; however, the following analyses are currently not listed on our TNI scope of accreditation: Drinking Water: VOC (excluding BTEX, MTBE, Naphthalene, & 1,2-dichloroethane) EPA 524.2, E. coli and Total coliforms SM 9223 B-2004, Solid Chemical Material: TOC Walkley-Black, Biological Tissue: All, Non - Potable Water: SGT-HEM EPA 1664B, Silica EPA 200.7, Boron, Calcium, Silicon, Strontium EPA 200.8, Bicarbonate, Carbonate, and Hydroxide Alkalinity SM 2320 B-2011, SM 9221 C E-2006 & SM 9222D-2006, Strontium SW-846 6010D, VOC SM 6200 B-2011, Fecal Coliform Colilert-18, PFAS by Isotope Dilution SOP. Pace is a DoD/DoE and TNI accredited laboratory; however, Pace is not accredited for PFAS Direct Aqueous Injection or Method D8421. VOA 8260D Insufficient sample volume was provided to perform matrix spike/matrix spike duplicate (MS/MSD) for analytical batch 73639. An LCS/LCSD was run in lieu of an MS/MSD. The laboratory control sample (LCS) and / or laboratory control sample duplicate (LCSD) for analytical batch 73639 exceeded acceptance criteria for the following analytes: Chloromethane (143%,141%%), Vinyl Chloride (131%). These analytes were biased high and were not detected in the associated samples: YD19013-028, YD19013-029, YD19013-030, YD19013-033, and YD19013-034. YD19013-028 (MW-L) (Run 1) (Analysis Batch 73639) YD19013-029 (MW-L deep) (Run 1) (Analysis Batch 73639) YD19013-030 (MW-3 deep) (Run 1) (Analysis Batch 73639) YD19013-033 (SW-1) (Run 1) (Analysis Batch 73639) YD19013-034 (SW-2) (Run 1) (Analysis Batch 73639) The continuing calibration verification (CCV) associated with analytical batch 73539 recovered outside acceptance criteria, low biased, for 1,2-Dibromo-3-chloropropane (-37%). An LOQ standard was analyzed, and the target analyte was detected. Since the associated samples were non -detect, no corrective action was taken. Due to the large number of spiked analytes, there is a high probability that one or more analytes will recover outside acceptance limits. The laboratory's SOP allows for 10% of analytes to recover marginally outside criteria. The following analytes recovered marginally outside LCS criteria: 1,2-Dibromo-3-chloropropane (64%). YD19013-012 (CD-4 REP) (Run 1) (Analysis Batch 73539) YD19013-013 (MW-1) (Run 1) (Analysis Batch 73539) YD19013-014 (MW-G) (Run 1) (Analysis Batch 73539) YD19013-015 (AMW-1s) (Run 1) (Analysis Batch 73539) YD19013-016 (AMW-1d) (Run 1) (Analysis Batch 73539) YD19013-017 (MW-E deep) (Run 1) (Analysis Batch 73539) YD19013-018 (MW-E REP) (Run 1) (Analysis Batch 73539) Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 whw.pacelabs.com Page 2 of 231 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 YD19013-019 (AMW-2d) (Run 1) (Analysis Batch 73539) YD19013-020 (AMW-2s) (Run 1) (Analysis Batch 73539) The laboratory control sample (LCS) for analytical batch 73590 exceeded acceptance criteria for the following analytes: Acetone (161%), 2-Butanone (136%). These analytes were biased high and were not detected in the associated sample: YD19013-027 (Trip Blank) (Run 1) (Analysis Batch 73590) The laboratory control sample (LCS) for analytical batch 73483 exceeded acceptance criteria for the following analytes: Acetone (182%) and 2-Butanone (150%). These analytes were biased high and were not detected in the associated samples: YD19013-001, YD19013-002, YD19013-003, YD19013-004, YD19013-005, YD19013-006, YD19013-007, YD19013-008, YD19013-009, YD19013-010, and YD19013-011. YD19013-001 (MW-F) (Run 1) (Analysis Batch 73483) YD19013-002 (MW-1) (Run 1) (Analysis Batch 73483) YD19013-003 (MW-H deep) (Run 1) (Analysis Batch 73483) YD19013-004 (MW-D) (Run 1) (Analysis Batch 73483) YD19013-005 (MW-K) (Run 1) (Analysis Batch 73483) YD19013-006 (MW-X) (Run 1) (Analysis Batch 73483) YD19013-007 (MW-B) (Run 1) (Analysis Batch 73483) YD19013-008 (MW-H) (Run 1) (Analysis Batch 73483) YD19013-009 (MW-C) (Run 1) (Analysis Batch 73483) YD19013-010 (DUP) (Run 1) (Analysis Batch 73483) YD19013-011 (MW-J) (Run 1) (Analysis Batch 73483) The continuing calibration verification (CCV) associated with analytical batch 73765 recovered outside acceptance criteria, low biased, for trans- 1,4-dichloro2-butene. An LOQ standard was analyzed, and the target analyte was detected. Since the associated samples were non -detect, no corrective action was taken. YD19013-037 (MW-M) (Run 1) (Analysis Batch 73765) YD19013-040 (EQ Blank) (Run 1) (Analysis Batch 73765) The laboratory control sample (LCS) for analytical batch 73765 exceeded acceptance criteria for the following analytes: Chloromethane. This analyte was biased high and was not detected in the associated samples: YD19013- 037 and YD19013-040. YD19013-037 (MW-M) (Run 1) (Analysis Batch 73765) YD19013-040 (EQ Blank) (Run 1) (Analysis Batch 73765) The following sample had an air bubble > 6mm in the sample vial: YD19013-027 YD19013-027 (Trip Blank) (Run 2) (Analysis Batch 74981) 1,4-Dioxane SIM 8260D Insufficient sample volume was provided to perform matrix spike/matrix spike duplicate (MS/MSD) for analytical batch 73764. An LCS/LCSD was run in lieu of an MS/MSD. YD19013-001 (MW-F) (Run 1) (Analysis Batch 73764) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD19013-006 (MW-X) (Run 1) (Analysis Batch 73764) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate The following sample had an air bubble > 6mm in the sample vial: YD19013-001. YD19013-001 (MW-F) (Run 1) (Analysis Batch 73764) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate Insufficient sample volume was provided to perform matrix spike/matrix spike duplicate (MS/MSD) for analytical batch 75361. An LCS/LCSD was run in lieu of an MS/MSD. YD19013-008 (MW-H) (Run 2) (Analysis Batch 75361) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 whw.pacelabs.com Page 3 of 231 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 Reanalysis of the following sample was performed outside of the analytical holding time: YD19013-00. This sample required a dilution which was performed outside of the analytical holding time. The label of vials submitted for VOA analysis was a match to each other but the results were not similar. The dilution analysis has been reported per client. YD19013-008 (MW-H) (Run 2) (Analysis Batch 75361) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate Dissolved Gases (RSK 175) The following sample required a dilution which was performed outside of the analytical holding time: YD19013-017. Per client only the Run 2 outside of holding times has been reported. YD19013-017 (MW-E deep) (Run 2) (Analysis Batch 74385) Dissolved Gases The method blank associated with batch 73994 and 74385 had Methane detected at a concentration that was above the DL but below the LOQ. All samples associated with this method blank that have detections for Methane have been flagged with a "B". Metals 6020B The MS/MSD for batch 73235 and parent sample YD19013-017 (MW-E deep), recovered outside the upper control limit for Barium. The associated LCS passed acceptance criteria. Nitrate 9056A The following samples were analyzed outside of analytical holding time at a 10x dilution: YD19013-015, YD19013- 016, YD19013-017, YD19013-018, and YD19013-019. Both runs were non -detect and Run 2 has been reported. YD19013-015 (AMW-1s) (Run 1) (Analysis Batch 73284) Nitrate - N YD19013-016 (AMW-1d) (Run 1) (Analysis Batch 73284) Nitrate - N YD19013-017 (MW-E deep) (Run 1) (Analysis Batch 73284) Nitrate - N YD19013-018 (MW-E REP) (Run 1) (Analysis Batch 73284) Nitrate - N YD19013-015 (AMW-1s) (Run 2) (Analysis Batch 73922) Nitrate - N YD19013-016 (AMW-1d) (Run 2) (Analysis Batch 73922) Nitrate - N YD19013-017 (MW-E deep) (Run 2) (Analysis Batch 73922) Nitrate - N YD19013-018 (MW-E REP) (Run 2) (Analysis Batch 73922) Nitrate - N YD19013-019 (AMW-2d) (Run 2) (Analysis Batch 73922) Nitrate - N The following sample was diluted due to the nature of the sample matrix: YD19013-032. The LOQ has been elevated to reflect the dilution. YD19013-032 (MW-A) (Run 1) (Analysis Batch 73299) Nitrate - N Sulfide The method blank associated with batch 73369 had Sulfide detected at a concentration that was above the DL but below the LOQ. All samples associated with this method blank were non -detect for Sulfide. BOD No sample dilutions resulted in a depletion of at least 2.0 mg/L. The reported BOD/CBOD value is ND, which was computed using the lowest BOD/CBOD value that can be calculated with the available data. COD approximate values were used to determine sample dilutions. The data have been 6-flagged accordingly. YD19013-016 (AMW-1d) (Run 1) (Analysis Batch 73069) BOD, 5 day No sample dilutions resulted in a depletion of at least 2.0 mg/L. The reported BOD/CBOD value is <10 mg/L, which was computed using the lowest BOD/CBOD value that can be calculated with the available data. COD approximate values were used to determine sample dilutions. The data have been 6-flagged accordingly. YD19013-017 (MW-E deep) (Run 1) (Analysis Batch 73069) BOD, 5 day Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 4 of 231 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 No sample dilutions resulted in a depletion of at least 2.0 mg/L. The reported BOD/CBOD value is ND, which was computed using the lowest BOD/CBOD value that can be calculated with the available data. COD approximate values were used to determine sample dilutions. The data have been 6-flagged accordingly. YD19013-018 (MW-E REP) (Run 1) (Analysis Batch 73069) BOD, 5 day The initial DO for QC bottle 5 was below the 8.56 minimum for the following samples: YD19013-015, YD19013-016, YD19013-017, YD19013-018, YD19013-019, and YD19013-020. YD19013-015 (AMW-1s) (Run 1) (Analysis Batch 73069) BOD, 5 day YD19013-016 (AMW-1d) (Run 1) (Analysis Batch 73069) BOD, 5 day YD19013-017 (MW-E deep) (Run 1) (Analysis Batch 73069) BOD, 5 day YD19013-018 (MW-E REP) (Run 1) (Analysis Batch 73069) BOD, 5 day YD19013-019 (AMW-2d) (Run 1) (Analysis Batch 73069) BOD, 5 day YD19013-020 (AMW-2s) (Run 1) (Analysis Batch 73069) BOD, 5 day Samples YD19013-028, YD19013-031, and YD19013-032: The NaOH solution used during the set up procedure was expired. The pH of the samples were taken before any adjustments were made and the pH was taken again for any samples that needed adjustment to ensure that they were within SOP criteria. YD19013-028 (MW-L) (Run 1) (Analysis Batch 73252) BOD, 5 day YD19013-031 (MW-3) (Run 1) (Analysis Batch 73252) BOD, 5 day YD19013-032 (MW-A) (Run 1) (Analysis Batch 73252) BOD, 5 day No sample dilutions resulted in a depletion of at least 2.0 mg/L. The reported BOD/CBOD value is <5.1 mg/L, which was computed using the lowest BOD/CBOD value that can be calculated with the available data. COD approximate values were used to determine sample dilutions. The data have been 6-flagged accordingly. YD19013-032 (MW-A) If you have any questions regarding this report, please contact the Pace Project Manager listed on the cover page. Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 whw.pacelabs.com Page 5 of 231 PACE ANALYTICAL SERVICES, LLC Sample Summary CDM Smith Lot Number: YD19013 Project Name: Cabarrus County LF-Units 2 & 3 Project Number: Sample Number Sample ID Matrix Date Sampled Date Received 001 MW-F Aqueous 04/17/20231010 04/19/2023 002 MW-1 Aqueous 04/17/20231045 04/19/2023 003 MW-H deep Aqueous 04/17/2023 1145 04/19/2023 004 MW-D Aqueous 04/17/2023 1220 04/19/2023 005 MW-K Aqueous 04/17/20231300 04/19/2023 006 MW-X Aqueous 04/17/20231350 04/19/2023 007 MW-B Aqueous 04/17/20231605 04/19/2023 008 MW-H Aqueous 04/18/20231330 04/19/2023 009 MW-C Aqueous 04/18/20231400 04/19/2023 010 DUP Aqueous 04/17/2023 0800 04/19/2023 011 MW-J Aqueous 04/18/20231415 04/19/2023 012 CD-4 REP Aqueous 04/18/2023 1435 04/19/2023 013 MW-1 Aqueous 04/18/20231530 04/19/2023 014 MW-G Aqueous 04/18/20231555 04/19/2023 015 AMW-1s Aqueous 04/18/2023 0835 04/19/2023 016 AMW-1d Aqueous 04/18/2023 0920 04/19/2023 017 MW-E deep Aqueous 04/18/2023 1020 04/19/2023 018 MW-E REP Aqueous 04/18/2023 1105 04/19/2023 019 AMW-2d Aqueous 04/18/20231200 04/19/2023 020 AMW-2s Aqueous 04/18/20231300 04/19/2023 021 AMW-1s (diss.hydrogen) Aqueous 04/18/2023 0852 04/19/2023 022 AMW-1d (diss.hydrogen) Aqueous 04/18/2023 0938 04/19/2023 023 MW-E deep (diss.hydrogen) Aqueous 04/18/2023 1036 04/19/2023 024 MW-E Rep (diss.hydrogen) Aqueous 04/18/2023 1122 04/19/2023 025 AMW-2d (diss.hydrogen) Aqueous 04/18/2023 1220 04/19/2023 026 AMW-2s (diss.hydrogen) Aqueous 04/18/2023 1315 04/19/2023 027 Trip Blank Aqueous 04/18/2023 04/19/2023 028 MW-L Aqueous 04/19/2023 0945 04/20/2023 029 MW-L deep Aqueous 04/19/2023 1040 04/20/2023 030 MW-3 deep Aqueous 04/19/2023 1115 04/20/2023 031 MW-3 Aqueous 04/19/20231200 04/20/2023 032 MW-A Aqueous 04/19/20231310 04/20/2023 033 SW-1 Aqueous 04/19/20231615 04/20/2023 034 SW-2 Aqueous 04/19/20231550 04/20/2023 035 MW-L (diss.hydrogen) Aqueous 04/19/2023 1006 04/20/2023 036 MW-3 (diss.hydrogen) Aqueous 04/19/2023 1220 04/20/2023 037 MW-M Aqueous 04/20/20231435 04/21/2023 038 MW-L (metals) Aqueous 04/20/2023 1445 04/21/2023 039 MW-A (diss.hydrogen) Aqueous 04/20/2023 1520 04/21/2023 040 EQ Blank Aqueous 04/20/2023 1615 04/21/2023 (40 samples) Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 6 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-001 Description: MW-F Matrix: Aqueous Date Sampled:04/17/2023 1010 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231433 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 0.58 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 7 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-001 Description: MW-F Matrix: Aqueous Date Sampled:04/17/2023 1010 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231433 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 98 70-130 112 70-130 106 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 8 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-001 Description: MW-F Matrix: Aqueous Date Sampled:04/17/2023 1010 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/27/2023 0431 JMM2 73764 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 9.6 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 126 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 9 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-001 Description: MW-F Matrix: Aqueous Date Sampled:04/17/2023 1010 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/25/2023 0447 BNW 6020B 1 04/28/2023 0838 BNW Prep Date Batch 04/23/2023 1915 73233 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 130 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 3.3 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 1.4 J 5.0 1.3 ug/L 2 Lead 7439-92-1 6020B 0.44 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 8.2 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B ND 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 10 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-002 Description: MW-1 Matrix: Aqueous Date Sampled:04/17/2023 1045 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231458 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 3.3 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 2.5 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 1.0 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.81 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 11 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-002 Description: MW-1 Matrix: Aqueous Date Sampled:04/17/2023 1045 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231458 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 96 70-130 111 70-130 102 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 12 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-002 Description: MW-1 Matrix: Aqueous Date Sampled:04/17/2023 1045 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/25/2023 0544 BNW 6020B 1 04/28/2023 1707 BNW Prep Date Batch 04/23/2023 1915 73233 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 25 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.36 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 2.0 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 2 Lead 7439-92-1 6020B 0.95 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 1.5 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 2.7 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 56 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 13 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-003 Description: MW-H deep Matrix: Aqueous Date Sampled:04/17/2023 1145 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231523 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 14 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-003 Description: MW-H deep Matrix: Aqueous Date Sampled:04/17/2023 1145 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231523 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 97 70-130 110 70-130 104 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 15 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-003 Description: MW-H deep Matrix: Aqueous Date Sampled:04/17/2023 1145 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/25/2023 0555 BNW 6020B 1 04/28/2023 1718 BNW Prep Date Batch 04/23/2023 1915 73233 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 53 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 1.4 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 2.9 J 5.0 1.3 ug/L 2 Lead 7439-92-1 6020B 1.1 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 2.2 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 3.6 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 8.8 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 16 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-004 Description: MW-D Matrix: Aqueous Date Sampled:04/17/2023 1220 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231548 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 4.5 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 1.4 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.75 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 8.3 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 12 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 1.0 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 17 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-004 Description: MW-D Matrix: Aqueous Date Sampled:04/17/2023 1220 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231548 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 2.4 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 0.91 J 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 100 70-130 112 70-130 104 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 18 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-004 Description: MW-D Matrix: Aqueous Date Sampled:04/17/2023 1220 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A 2 3005A 3 3005A Analytical Method 6020B 6020B 6020B Dilution Analysis Date Analyst 1 04/25/2023 0607 BNW 1 04/28/2023 1730 BNW 5 04/28/2023 2056 BNW Prep Date Batch 04/23/2023 1915 73233 04/23/2023 1915 73233 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.1 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 390 25 6.3 ug/L 3 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 20 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 2 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 29 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 3.2 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 19 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-005 Description: MW-K Matrix: Aqueous Date Sampled:04/17/2023 1300 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231613 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 3.1 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 20 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-005 Description: MW-K Matrix: Aqueous Date Sampled:04/17/2023 1300 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231613 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 101 70-130 114 70-130 107 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 21 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-005 Description: MW-K Matrix: Aqueous Date Sampled:04/17/2023 1300 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/25/2023 0618 BNW 6020B 1 04/28/2023 1741 BNW Prep Date Batch 04/23/2023 1915 73233 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 28 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.19 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 4.7 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 1.5 J 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 1.4 J 5.0 1.3 ug/L 2 Lead 7439-92-1 6020B 1.4 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.5 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 7.7 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 9.1 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 22 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-006 Description: MW-X Matrix: Aqueous Date Sampled:04/17/2023 1350 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231639 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 23 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-006 Description: MW-X Matrix: Aqueous Date Sampled:04/17/2023 1350 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231639 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 96 70-130 112 70-130 104 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 24 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-006 Description: MW-X Matrix: Aqueous Date Sampled:04/17/2023 1350 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/27/2023 0455 JMM2 73764 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) ND 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 126 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 25 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-006 Description: MW-X Matrix: Aqueous Date Sampled:04/17/2023 1350 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/25/2023 0630 BNW 6020B 1 04/28/2023 1753 BNW Prep Date Batch 04/23/2023 1915 73233 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 25 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 2 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 2.6 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 3.7 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 26 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-007 Description: MW-B Matrix: Aqueous Date Sampled:04/17/2023 1605 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231704 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 27 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-007 Description: MW-B Matrix: Aqueous Date Sampled:04/17/2023 1605 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231704 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 96 70-130 112 70-130 104 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 28 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-007 Description: MW-B Matrix: Aqueous Date Sampled:04/17/2023 1605 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/28/2023 1611 JWO 73956 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 20 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 102 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 29 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-007 Description: MW-B Matrix: Aqueous Date Sampled:04/17/2023 1605 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 1804 BNW Prep Date Batch 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 1.5 J 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 170 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 10 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.36 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 4.4 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 4.1 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 30 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-008 Description: MW-H Matrix: Aqueous Date Sampled:04/18/2023 1330 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231729 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 31 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-008 Description: MW-H Matrix: Aqueous Date Sampled:04/18/2023 1330 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231729 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 99 70-130 113 70-130 107 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 32 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-008 Description: MW-H Matrix: Aqueous Date Sampled:04/18/2023 1330 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 5030B 8260D (SIM) 10 05/16/2023 1739 CDA 75361 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) ND H 30 10 ug/L 2 Run 2 Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 H 97 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 33 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-008 Description: MW-H Matrix: Aqueous Date Sampled:04/18/2023 1330 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 1816 BNW Prep Date Batch 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 36 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 1.4 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.29 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 1.9 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 3.2 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 4.8 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 34 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-009 Description: MW-C Matrix: Aqueous Date Sampled:04/18/2023 1400 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231754 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 35 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-009 Description: MW-C Matrix: Aqueous Date Sampled:04/18/2023 1400 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231754 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 98 70-130 115 70-130 106 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 36 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-009 Description: MW-C Matrix: Aqueous Date Sampled:04/18/2023 1400 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 1827 BNW Prep Date Batch 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 17 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.17 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.34 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B ND 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 3.4 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 37 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-010 Description: DUP Matrix: Aqueous Date Sampled:04/17/2023 0800 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231819 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 4.2 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 1.3 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.61 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 7.9 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 11 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.92 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 38 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-010 Description: DUP Matrix: Aqueous Date Sampled:04/17/2023 0800 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231819 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 2.1 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 0.76 J 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 98 70-130 114 70-130 103 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 39 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-010 Description: DUP Matrix: Aqueous Date Sampled:04/17/2023 0800 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 1839 BNW 6020B 5 05/01/2023 1432 BNW Prep Date Batch 04/23/2023 1915 73233 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.3 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 410 25 6.3 ug/L 2 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 22 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 33 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B ND 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 40 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-011 Description: MW-J Matrix: Aqueous Date Sampled:04/18/2023 1415 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231844 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 41 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-011 Description: MW-J Matrix: Aqueous Date Sampled:04/18/2023 1415 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/20231844 CJJ 73483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 99 70-130 114 70-130 105 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 42 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-011 Description: MW-J Matrix: Aqueous Date Sampled:04/18/2023 1415 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 1850 BNW Prep Date Batch 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 15 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 1.8 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B ND 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 12 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 43 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-012 Description: CD-4 REP Matrix: Aqueous Date Sampled:04/18/2023 1435 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/2023 2329 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND L 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 4.0 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 0.43 J 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 44 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-012 Description: CD-4 REP Matrix: Aqueous Date Sampled:04/18/2023 1435 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/2023 2329 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 99 70-130 96 70-130 99 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 45 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-012 Description: CD-4 REP Matrix: Aqueous Date Sampled:04/18/2023 1435 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 1924 BNW Prep Date Batch 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 56 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.38 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 1.8 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 12 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.86 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 6.6 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 3.9 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 6.9 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 46 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-013 Description: MW-1 Matrix: Aqueous Date Sampled:04/18/2023 1530 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/2023 2354 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND L 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.40 J 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 1.9 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 0.96 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 47 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-013 Description: MW-1 Matrix: Aqueous Date Sampled:04/18/2023 1530 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/24/2023 2354 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 98 70-130 94 70-130 96 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 48 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-013 Description: MW-1 Matrix: Aqueous Date Sampled:04/18/2023 1530 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/28/2023 1635 JWO 73956 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 69 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 102 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 49 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-013 Description: MW-1 Matrix: Aqueous Date Sampled:04/18/2023 1530 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 1936 BNW Prep Date Batch 04/23/2023 1915 73233 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 150 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.39 J 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 1.4 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 13 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 18 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.5 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 33 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 3.0 J 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 4.6 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 6.3 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 50 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-014 Description: MW-G Matrix: Aqueous Date Sampled:04/18/2023 1555 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0019 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 1.4 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.46 J 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND L 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.54 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.55 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 51 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-014 Description: MW-G Matrix: Aqueous Date Sampled:04/18/2023 1555 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0019 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 106 70-130 97 70-130 97 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 52 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-014 Description: MW-G Matrix: Aqueous Date Sampled:04/18/2023 1555 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/28/2023 1658 JWO 73956 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 27 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 103 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 53 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-014 Description: MW-G Matrix: Aqueous Date Sampled:04/18/2023 1555 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 2010 BNW 6020B 5 05/01/2023 1443 BNW Prep Date Batch 04/23/2023 1915 73235 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.1 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 320 25 6.3 ug/L 2 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 15 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 9.8 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 2.5 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B ND 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 54 of 231 Inorganic non-metals Client:CDM Smith Laboratory ID:YD19013-015 Description: AMW-1s Matrix: Aqueous Date Sampled:04/18/2023 0835 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/27/2023 0012 JJM 73844 1 (BOD, 5 day) SM 521OB-2016 1 04/24/2023 1624 HDT 04/19/2023 2015 73069 1 (Chloride) 9056A 1 04/20/2023 1148 SJL 73280 1 (CO2 (calcula) SM 4500-CO2 D 1 04/27/2023 0012 JJM 2 (COD) SM 5220D-2011 1 04/26/2023 1512 GGC 73703 2 (Nitrate - N) 9056A 10 04/28/2023 0136 SJL 73922 1 (Sulfate) 9056A 1 04/20/2023 1148 SJL 73285 1 (Sulfide) SM 4500-S2 F-2011 1 04/21/2023 1348 CVR 73336 1 (TOC) SM 531 OC-2014 1 05/02/2023 2200 DMA 74238 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 120 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 ND 2.0 0.18 mg/L 1 Chloride 9056A 3.7 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 230 27 27 mg/L 1 COD SM 5220D-2011 ND 20 20 mg/L 2 Nitrate - N 9056A ND H 0.20 0.050 mg/L 2 Sulfate 9056A ND 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 ND 1.0 1.0 mg/L 1 TOC SM 531OC-2014 ND 1.0 1.0 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 55 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-015 Description: AMW-1s Matrix: Aqueous Date Sampled:04/18/2023 0835 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0044 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND L 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.78 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.52 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 2.2 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 56 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-015 Description: AMW-1s Matrix: Aqueous Date Sampled:04/18/2023 0835 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0044 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.48 J 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 106 70-130 96 70-130 98 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 57 of 231 Dissolved Gases Client:CDM Smith Laboratory ID:YD19013-015 Description: AMW-1s Matrix: Aqueous Date Sampled:04/18/2023 0835 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/28/2023 1622 BBW 73994 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 ND 10 2.5 ug/L 1 74-85-1 RSK - 175 ND 10 2.5 ug/L 1 74-82-8 RSK - 175 1100 B 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 58 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-015 Description: AMW-1s Matrix: Aqueous Date Sampled:04/18/2023 0835 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 2022 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 97 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.97 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 4.9 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 2.5 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 7.5 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 59 of 231 Inorganic non-metals Client:CDM Smith Laboratory ID:YD19013-016 Description: AMW-1d Matrix: Aqueous Date Sampled:04/18/2023 0920 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/27/2023 0020 JJM 73844 1 (BOD, 5 day) SM 521OB-2016 1 04/24/2023 1626 HDT 04/19/2023 2018 73069 1 (Chloride) 9056A 1 04/20/2023 1245 SJL 73280 1 (CO2 (calcula) SM 4500-CO2 D 1 04/27/2023 0020 JJM 2 (COD) SM 5220D-2011 1 04/26/2023 1508 GGC 73703 2 (Nitrate - N) 9056A 10 04/28/2023 0233 SJL 73922 1 (Sulfate) 9056A 1 04/20/2023 1245 SJL 73285 1 (Sulfide) SM 4500-S2 F-2011 1 04/21/2023 1348 CVR 73336 1 (TOC) SM 531 OC-2014 1 05/02/2023 2211 DMA 74238 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 210 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 ND 6 2.0 0.18 mg/L 1 Chloride 9056A 9.0 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 420 27 27 mg/L 1 COD SM 5220D-2011 ND 20 20 mg/L 2 Nitrate - N 9056A ND H 0.20 0.050 mg/L 2 Sulfate 9056A ND 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 ND 1.0 1.0 mg/L 1 TOC SM 531OC-2014 1.2 1.0 1.0 mg/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 60 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-016 Description: AMW-1d Matrix: Aqueous Date Sampled:04/18/2023 0920 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0109 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 1.1 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 1.9 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND L 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 1.1 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 8.6 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.40 J 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 6.8 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 2.0 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 61 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-016 Description: AMW-1d Matrix: Aqueous Date Sampled:04/18/2023 0920 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0109 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 3.5 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 108 70-130 99 70-130 101 70-130 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 62 of 231 Dissolved Gases Client:CDM Smith Laboratory ID:YD19013-016 Description: AMW-1d Matrix: Aqueous Date Sampled:04/18/2023 0920 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/28/2023 1638 BBW 73994 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 ND 10 2.5 ug/L 1 74-85-1 RSK - 175 21 10 2.5 ug/L 1 74-82-8 RSK - 175 1700 B 10 2.5 ug/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 63 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-016 Description: AMW-1d Matrix: Aqueous Date Sampled:04/18/2023 0920 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 2033 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 1.9 J 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 140 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.15 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 1.6 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 9.2 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 6.6 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.71 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 13 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 11 10 2.5 ug/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 64 of 231 Inorganic non-metals Client:CDM Smith Laboratory ID:YD19013-017 Description: MW-E deep Matrix: Aqueous Date Sampled:04/18/2023 1020 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/27/2023 0028 JJM 73844 1 (BOD, 5 day) SM 521OB-2016 1 04/24/2023 1629 HDT 04/19/2023 2023 73069 1 (Chloride) 9056A 1 04/20/2023 1304 SJL 73280 1 (CO2 (calcula) SM 4500-CO2 D 1 04/27/2023 0028 JJM 2 (COD) SM 5220D-2011 1 04/26/2023 1509 GGC 73703 2 (Nitrate - N) 9056A 10 04/28/2023 0329 SJL 73922 1 (Sulfate) 9056A 1 04/20/2023 1304 SJL 73285 1 (Sulfide) SM 4500-S2 F-2011 1 04/21/2023 1348 CVR 73336 1 (TOC) SM 531 OC-2014 1 05/02/2023 2247 DMA 74238 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 420 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 <10 6 2.0 0.18 mg/L 1 Chloride 9056A 42 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 540 27 27 mg/L 1 COD SM 5220D-2011 ND 20 20 mg/L 2 Nitrate - N 9056A ND H 0.20 0.050 mg/L 2 Sulfate 9056A ND 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 ND 1.0 1.0 mg/L 1 TOC SM 531OC-2014 2.5 1.0 1.0 mg/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 65 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-017 Description: MW-E deep Matrix: Aqueous Date Sampled:04/18/2023 1020 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0134 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.79 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 1.5 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 15 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND L 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 9.1 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 1.1 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.88 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 66 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-017 Description: MW-E deep Matrix: Aqueous Date Sampled:04/18/2023 1020 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0134 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.40 J 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 0.56 J 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 101 70-130 91 70-130 95 70-130 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 67 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-017 Description: MW-E deep Matrix: Aqueous Date Sampled:04/18/2023 1020 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/28/2023 1723 JWO 73956 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 8.1 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 103 40-170 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 68 of 231 Dissolved Gases Client:CDM Smith Laboratory ID:YD19013-017 Description: MW-E deep Matrix: Aqueous Date Sampled:04/18/2023 1020 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/28/2023 1654 BBW 73994 2 RSK - 175 5 05/03/2023 1704 JWG 74385 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane 74-84-0 RSK - 175 5.0 J 10 2.5 ug/L 1 Ethene 74-85-1 RSK - 175 ND 10 2.5 ug/L 1 Methane 74-82-8 RSK - 175 7200 BH 50 13 ug/L 2 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 69 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-017 Description: MW-E deep Matrix: Aqueous Date Sampled:04/18/2023 1020 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 2130 BNW 6020B 20 05/01/2023 1455 BNW Prep Date Batch 04/23/2023 1915 73235 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.8 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 2400 S 100 25 ug/L 2 Beryllium 7440-41-7 6020B 0.32 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.24 J 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 35 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 3.5 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 37 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 17 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 11 10 2.5 ug/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 70 of 231 Inorganic non-metals Client:CDM Smith Laboratory ID:YD19013-018 Description: MW-E REP Matrix: Aqueous Date Sampled:04/18/2023 1105 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/27/2023 0045 JJM 73844 1 (BOD, 5 day) SM 521OB-2016 1 04/24/2023 1631 HDT 04/19/2023 2030 73069 1 (Chloride) 9056A 1 04/20/2023 1323 SJL 73280 1 (CO2 (calcula) SM 4500-CO2 D 1 04/27/2023 0028 JJM 2 (COD) SM 5220D-2011 1 04/26/2023 1510 GGC 73703 2 (Nitrate - N) 9056A 10 04/28/2023 0348 SJL 73922 1 (Sulfate) 9056A 1 04/20/2023 1323 SJL 73285 1 (Sulfide) SM 4500-S2 F-2011 1 04/22/2023 1012 CVR 73369 2 (TOC) SM 531OC-2014 1 05/04/2023 0652 CMM 74338 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 500 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 ND 6 2.0 0.18 mg/L 1 Chloride 9056A 57 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 660 27 27 mg/L 1 COD SM 5220D-2011 ND 20 20 mg/L 2 Nitrate - N 9056A ND H 0.20 0.050 mg/L 2 Sulfate 9056A 3.1 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 ND 1.0 1.0 mg/L 1 TOC SM 531OC-2014 3.5 1.0 1.0 mg/L 2 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 71 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-018 Description: MW-E REP Matrix: Aqueous Date Sampled:04/18/2023 1105 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0159 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.82 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 3.3 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 5.9 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND L 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.42 J 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 13 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 1.1 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.77 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 8.1 0.50 0.40 ug/L 1 trans-1,2-Dichloroethene 156-60-5 8260D 0.41 J 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.71 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 72 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-018 Description: MW-E REP Matrix: Aqueous Date Sampled:04/18/2023 1105 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0159 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 3.2 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 104 70-130 91 70-130 96 70-130 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 73 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-018 Description: MW-E REP Matrix: Aqueous Date Sampled:04/18/2023 1105 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/28/2023 1747 JWO 73956 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 3.6 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 103 40-170 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 74 of 231 Dissolved Gases Client:CDM Smith Laboratory ID:YD19013-018 Description: MW-E REP Matrix: Aqueous Date Sampled:04/18/2023 1105 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/28/2023 1712 BBW 73994 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 ND 10 2.5 ug/L 1 74-85-1 RSK - 175 ND 10 2.5 ug/L 1 74-82-8 RSK - 175 600 B 10 2.5 ug/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 75 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-018 Description: MW-E REP Matrix: Aqueous Date Sampled:04/18/2023 1105 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 2228 BNW 6020B 5 05/01/2023 1552 BNW Prep Date Batch 04/23/2023 1915 73235 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 360 25 6.3 ug/L 2 Beryllium 7440-41-7 6020B 0.29 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 10 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.58 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 18 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 3.0 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 8.1 J 10 2.5 ug/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 76 of 231 Inorganic non-metals Client:CDM Smith Laboratory ID:YD19013-019 Description: AMW-2d Matrix: Aqueous Date Sampled:04/18/2023 1200 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/27/2023 0051 JJM 73844 1 (BOD, 5 day) SM 521OB-2016 1 04/24/2023 1632 HDT 04/19/2023 2032 73069 1 (Chloride) 9056A 1 04/20/2023 1110 SJL 73280 1 (CO2 (calcula) SM 4500-CO2 D 1 04/27/2023 0028 JJM 2 (COD) SM 5220D-2011 1 04/26/2023 1511 GGC 73703 2 (Nitrate - N) 9056A 10 04/28/2023 0407 SJL 73922 1 (Sulfate) 9056A 1 04/20/2023 1110 SJL 73285 1 (Sulfide) SM 4500-S2 F-2011 1 04/25/2023 1112 CVR 73576 2 (TOC) SM 531OC-2014 1 05/04/2023 0703 CMM 74338 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 130 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 ND 2.0 0.18 mg/L 1 Chloride 9056A 3.1 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 250 27 27 mg/L 1 COD SM 5220D-2011 ND 20 20 mg/L 2 Nitrate - N 9056A ND H 0.20 0.050 mg/L 2 Sulfate 9056A 0.27 J 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 ND 1.0 1.0 mg/L 1 TOC SM 531OC-2014 ND 1.0 1.0 mg/L 2 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 77 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-019 Description: AMW-2d Matrix: Aqueous Date Sampled:04/18/2023 1200 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0223 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.91 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND L 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 1.2 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 13 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 1.1 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 13 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 1.0 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 2.0 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 6.2 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 78 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-019 Description: AMW-2d Matrix: Aqueous Date Sampled:04/18/2023 1200 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0223 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 106 70-130 96 70-130 100 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 79 of 231 Dissolved Gases Client:CDM Smith Laboratory ID:YD19013-019 Description: AMW-2d Matrix: Aqueous Date Sampled:04/18/2023 1200 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/28/2023 1728 BBW 73994 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 ND 10 2.5 ug/L 1 74-85-1 RSK - 175 ND 10 2.5 ug/L 1 74-82-8 RSK - 175 230 B 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 80 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-019 Description: AMW-2d Matrix: Aqueous Date Sampled:04/18/2023 1200 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 2239 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 68 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.22 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 2.8 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B ND 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 81 of 231 Inorganic non-metals Client:CDM Smith Laboratory ID:YD19013-020 Description: AMW-2s Matrix: Aqueous Date Sampled:04/18/2023 1300 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/27/2023 0057 JJM 73844 1 (BOD, 5 day) SM 521OB-2016 1 04/24/2023 1635 HDT 04/19/2023 2037 73069 1 (Chloride) 9056A 1 04/20/2023 1129 SJL 73280 1 (CO2 (calcula) SM 4500-CO2 D 1 04/27/2023 0028 JJM 2 (COD) SM 5220D-2011 1 04/26/2023 1516 GGC 73703 1 (Nitrate - N) 9056A 1 04/20/2023 1129 SJL 73284 1 (Sulfate) 9056A 1 04/20/2023 1129 SJL 73285 1 (Sulfide) SM 4500-S2 F-2011 1 04/25/2023 1112 CVR 73576 2 (TOC) SM 531OC-2014 1 05/04/2023 0714 CMM 74338 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 65 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 ND 2.0 0.18 mg/L 1 Chloride 9056A 3.0 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 140 27 27 mg/L 1 COD SM 5220D-2011 ND 20 20 mg/L 2 Nitrate - N 9056A 0.29 0.020 0.0050 mg/L 1 Sulfate 9056A ND 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 ND 1.0 1.0 mg/L 1 TOC SM 531OC-2014 ND 1.0 1.0 mg/L 2 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 82 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-020 Description: AMW-2s Matrix: Aqueous Date Sampled:04/18/2023 1300 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0248 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND L 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 1.9 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 1.6 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.74 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.62 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 83 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-020 Description: AMW-2s Matrix: Aqueous Date Sampled:04/18/2023 1300 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 0248 JMM2 73539 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 101 70-130 93 70-130 94 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 84 of 231 Dissolved Gases Client:CDM Smith Laboratory ID:YD19013-020 Description: AMW-2s Matrix: Aqueous Date Sampled:04/18/2023 1300 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/28/2023 1744 BBW 73994 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 ND 10 2.5 ug/L 1 74-85-1 RSK - 175 ND 10 2.5 ug/L 1 74-82-8 RSK - 175 8.0 BJ 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 85 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-020 Description: AMW-2s Matrix: Aqueous Date Sampled:04/18/2023 1300 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 2250 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 41 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.74 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.65 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 1.3 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 4.1 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 2.7 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 86 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-027 Description: Trip Blank Matrix: Aqueous Date Sampled:04/18/2023 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/20231324 CJJ 73590 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND L 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND L 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 87 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-027 Description: Trip Blank Matrix: Aqueous Date Sampled:04/18/2023 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/20231324 CJJ 73590 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 94 70-130 112 70-130 102 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 88 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-027 Description: Trip Blank Matrix: Aqueous Date Sampled:04/18/2023 Project Name: Cabarrus County LF-Units 2 & Date Received:04/19/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/28/2023 1811 JWO 73956 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) ND 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 104 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 89 of 231 Inorganic non-metals Client:CDM Smith Laboratory ID:YD19013-028 Description: MW-L Matrix: Aqueous Date Sampled:04/19/2023 0945 Project Name: Cabarrus County LF-Units 2 & Date Received: 04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/27/2023 0103 JJM 73844 1 (BOD, 5 day) SM 521OB-2016 1 04/25/2023 1828 HDT 04/20/2023 2237 73252 1 (Chloride) 9056A 1 04/20/2023 2344 SJL 73294 2 (COD) SM 5220D-2011 1 04/26/2023 1518 GGC 73703 1 (Nitrate - N) 9056A 1 04/20/2023 2344 SJL 73299 1 (Sulfate) 9056A 1 04/20/2023 2344 SJL 73300 1 (Sulfide) SM 4500-S2 F-2011 1 04/26/2023 1052 CVR 73684 2 (TOC) SM 531OC-2014 1 05/04/2023 1931 DMA 74483 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su BOD, 5 day Chloride COD Nitrate - N Sulfate Sulfide TOC SM 2320B-2011 42 SM 521OB-2016 ND 9056A 3.0 SM 5220D-2011 ND 9056A 0.062 9056A 0.47 J 18496-25-8 SM 4500-S2 F-2 ND SM 531OC-2014 ND 20 20 mg CaCO3/L 1 2.0 0.18 mg/L 1 1.0 0.25 mg/L 1 20 20 mg/L 2 0.020 0.0050 mg/L 1 1.0 0.25 mg/L 1 1.0 1.0 mg/L 1 1.0 1.0 mg/L 2 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 90 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-028 Description: MW-L Matrix: Aqueous Date Sampled:04/19/2023 0945 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 2359 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND L 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.55 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 91 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-028 Description: MW-L Matrix: Aqueous Date Sampled:04/19/2023 0945 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 2359 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND L 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 101 70-130 113 70-130 112 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 92 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-029 Description: MW-L deep Matrix: Aqueous Date Sampled:04/19/2023 1040 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0022 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND L 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.53 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 28 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 2.9 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 15 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.43 J 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.63 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 13 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 8.7 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 1.5 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 93 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-029 Description: MW-L deep Matrix: Aqueous Date Sampled:04/19/2023 1040 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0022 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND L 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 96 70-130 112 70-130 108 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 94 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-029 Description: MW-L deep Matrix: Aqueous Date Sampled:04/19/2023 1040 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 2302 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 34 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 3.0 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 1.3 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.48 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 4.4 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 12 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 95 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-030 Description: MW-3 deep Matrix: Aqueous Date Sampled:04/19/2023 1115 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0045 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND L 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.91 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 96 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-030 Description: MW-3 deep Matrix: Aqueous Date Sampled:04/19/2023 1115 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0045 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND L 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 107 70-130 116 70-130 111 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 97 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-030 Description: MW-3 deep Matrix: Aqueous Date Sampled:04/19/2023 1115 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/28/2023 2313 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 52 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 1.3 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B ND 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 7.2 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 98 of 231 Inorganic non-metals Client:CDM Smith Laboratory ID:YD19013-031 Description: MW-3 Matrix: Aqueous Date Sampled:04/19/2023 1200 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/27/2023 1955 JJM 73973 1 (BOD, 5 day) SM 521OB-2016 1 04/25/2023 1830 HDT 04/20/2023 2243 73252 1 (Chloride) 9056A 1 04/21/2023 0005 SJL 73294 2 (COD) SM 5220D-2011 1 04/26/2023 1528 GGC 73703 1 (Nitrate - N) 9056A 1 04/21/2023 0005 SJL 73299 1 (Sulfate) 9056A 1 04/21/2023 0005 SJL 73300 1 (Sulfide) SM 4500-S2 F-2011 1 04/26/2023 0000 CVR 73684 2 (TOC) SM 531OC-2014 1 05/04/2023 0725 CMM 74338 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 96 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 ND 2.0 0.18 mg/L 1 Chloride 9056A 5.3 1.0 0.25 mg/L 1 COD SM 5220D-2011 ND 20 20 mg/L 2 Nitrate - N 9056A ND 0.020 0.0050 mg/L 1 Sulfate 9056A ND 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 ND 1.0 1.0 mg/L 1 TOC SM 531OC-2014 ND 1.0 1.0 mg/L 2 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 99 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-031 Description: MW-3 Matrix: Aqueous Date Sampled:04/19/2023 1200 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/29/2023 0011 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 33 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 1.3 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B ND 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B ND 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 100 of 231 Inorganic non-metals Client:CDM Smith Laboratory ID:YD19013-032 Description: MW-A Matrix: Aqueous Date Sampled:04/19/2023 1310 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/27/2023 2007 JJM 73973 1 (BOD, 5 day) SM 521OB-2016 1 04/25/2023 1833 HDT 04/20/2023 2246 73252 1 (Chloride) 9056A 1 04/21/2023 0108 SJL 73294 2 (COD) SM 5220D-2011 1 04/26/2023 1521 GGC 73703 1 (Nitrate - N) 9056A 10 04/21/2023 1055 SJL 73299 1 (Sulfate) 9056A 1 04/21/2023 0108 SJL 73300 1 (Sulfide) SM 4500-S2 F-2011 1 04/26/2023 1052 CVR 73684 2 (TOC) SM 531OC-2014 1 05/04/2023 0737 CMM 74338 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 140 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 <5.1 6 2.0 0.18 mg/L 1 Chloride 9056A 19 1.0 0.25 mg/L 1 COD SM 5220D-2011 ND 20 20 mg/L 2 Nitrate - N 9056A ND 0.20 0.050 mg/L 1 Sulfate 9056A 7.0 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 ND 1.0 1.0 mg/L 1 TOC SM 531OC-2014 1.9 1.0 1.0 mg/L 2 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 101 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-032 Description: MW-A Matrix: Aqueous Date Sampled:04/19/2023 1310 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/29/2023 0022 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 47 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.17 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 8.4 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.4 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.50 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 23 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 25 10 2.5 ug/L 1 Footnote(s): 6-D.O. depletion < 2.00 mg/L LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 102 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-033 Description: SWA Matrix: Aqueous Date Sampled:04/19/2023 1615 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0108 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND L 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 103 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-033 Description: SW-1 Matrix: Aqueous Date Sampled:04/19/2023 1615 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0108 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND L 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 101 70-130 116 70-130 111 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 104 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-033 Description: SW-1 Matrix: Aqueous Date Sampled:04/19/2023 1615 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/28/2023 1835 JWO 73956 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 8.3 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 103 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 105 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-033 Description: SWA Matrix: Aqueous Date Sampled:04/19/2023 1615 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/29/2023 0033 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 46 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 4.4 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B ND 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 106 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-034 Description: SW-2 Matrix: Aqueous Date Sampled:04/19/2023 1550 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0131 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND L 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 107 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-034 Description: SW-2 Matrix: Aqueous Date Sampled:04/19/2023 1550 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0131 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND L 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 100 70-130 118 70-130 112 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 108 of 231 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD19013-034 Description: SW-2 Matrix: Aqueous Date Sampled:04/19/2023 1550 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/28/2023 1859 JWO 73956 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 8.3 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 105 40-170 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 109 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-034 Description: SW-2 Matrix: Aqueous Date Sampled:04/19/2023 1550 Project Name: Cabarrus County LF-Units 2 & Date Received:04/20/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/29/2023 0045 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 51 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 1.3 J 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 4.7 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 3.5 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 110 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-037 Description: MW-M Matrix: Aqueous Date Sampled:04/20/2023 1435 Project Name: Cabarrus County LF-Units 2 & Date Received:04/21/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/27/2023 0242 CDA 73765 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND L 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.63 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 111 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-037 Description: MW-M Matrix: Aqueous Date Sampled:04/20/2023 1435 Project Name: Cabarrus County LF-Units 2 & Date Received:04/21/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/27/2023 0242 CDA 73765 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 89 70-130 111 70-130 101 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 112 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-037 Description: MW-M Matrix: Aqueous Date Sampled:04/20/2023 1435 Project Name: Cabarrus County LF-Units 2 & Date Received:04/21/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 05/02/2023 1222 BNW Prep Date Batch 05/02/2023 0400 73746 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 27 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.35 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B ND 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 2.5 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B ND 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 113 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-038 Description: MW-L (metals) Matrix: Aqueous Date Sampled:04/20/2023 1445 Project Name: Cabarrus County LF-Units 2 & Date Received:04/21/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 05/02/2023 1233 BNW Prep Date Batch 05/02/2023 0400 73746 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 59 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.34 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 2.9 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 2.2 J 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.3 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 4.8 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 12 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 10 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 114 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-040 Description: EQ Blank Matrix: Aqueous Date Sampled:04/20/2023 1615 Project Name: Cabarrus County LF-Units 2 & Date Received:04/21/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/27/2023 0109 CDA 73765 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 5.0 J 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND L 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 115 of 231 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD19013-040 Description: EQ Blank Matrix: Aqueous Date Sampled:04/20/2023 1615 Project Name: Cabarrus County LF-Units 2 & Date Received:04/21/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/27/2023 0109 CDA 73765 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 86 70-130 109 70-130 100 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 116 of 231 ICP-MS Metals Client:CDM Smith Laboratory ID:YD19013-040 Description: EQ Blank Matrix: Aqueous Date Sampled:04/20/2023 1615 Project Name: Cabarrus County LF-Units 2 & Date Received:04/21/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 05/02/2023 1245 BNW Prep Date Batch 05/02/2023 0400 73746 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B ND 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B ND 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B ND 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B ND 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 117 of 231 QC Summary Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 118 of 231 Inorganic non-metals - BOD Blank and GGA Matrix: Aqueous Batch: 73069 SCF: 1.2 Analytical Method: SM 521 OB-2016 SCF Range: 0.6 - 1.0 Result Avg. Result Sample ID Depl Avg. Depl (mg/L) (mg/L) Q Limit Prep Date Analysis Date YQ73069-041 (Blank) 0.12 0.2 04/19/2023 1858 04/24/2023 1455 YQ73069-141 (Blank) 0.15 0.2 04/19/2023 1858 04/24/2023 1455 YQ73069-241 (Blank) 0.17 0.15 0.2 04/19/2023 1858 04/24/2023 1455 YQ73069-035 (GGA) 173.1 167.5-228.5 04/19/2023 1903 04/24/2023 1500 YQ73069-135 (GGA) 153.1 1 167.5-228.5 04/19/2023 1903 04/24/2023 1501 YQ73069-235 (GGA) 203.6 176.6 167.5-228.5 04/19/2023 1903 04/24/2023 1459 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 119 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - BOD Blank and GGA Matrix: Aqueous Batch: 73252 SCF: 1.0 Analytical Method: SM 521 OB-2016 SCF Range: 0.6 - 1.0 Result Avg. Result Sample ID Depl Avg. Depl (mg/L) (mg/L) Q Limit Prep Date Analysis Date YQ73252-041 (Blank) 0.16 0.2 04/20/2023 2227 04/25/2023 1818 YQ73252-141 (Blank) 0.28 4 0.2 04/20/2023 2227 04/25/2023 1818 YQ73252-241 (Blank) 0.16 0.2 0.2 04/20/2023 2227 04/25/2023 1818 YQ73252-035 (GGA) 205.8 167.5-228.5 04/20/2023 2232 04/25/2023 1824 YQ73252-135 (GGA) 169.8 167.5-228.5 04/20/2023 2232 04/25/2023 1824 YQ73252-235 (GGA) 205.8 193.8 167.5-228.5 04/20/2023 2232 04/25/2023 1824 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 120 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73280-001 Matrix: Aqueous Batch:73280 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Chloride ND 1 1.0 0.25 mg/L 04/20/20231014 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 121 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73280-002 Matrix: Aqueous Batch:73280 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 20 20 1 100 80-120 04/20/20231051 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 122 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MS Sample ID: YD19013-015MS Matrix: Aqueous Batch:73280 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 3.7 10 14 1 101 80-120 04/20/20231207 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 123 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MSD Sample ID: YD19013-015MD Matrix: Aqueous Batch:73280 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Chloride 3.7 10 14 1 101 0.31 80-120 20 04/20/20231226 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 124 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73284-001 Matrix: Aqueous Batch:73284 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Nitrate - N ND 1 0.020 0.0050 mg/L 04/20/2023 1014 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 125 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73284-002 Matrix: Aqueous Batch:73284 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N 0.80 0.80 1 100 80-120 04/20/2023 1051 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 126 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MS Sample ID: YD19013-015MS Matrix: Aqueous Batch:73284 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N ND 0.40 ND N 1 0.00 80-120 04/20/2023 1207 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 127 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MSD Sample ID: YD19013-015MD Matrix: Aqueous Batch:73284 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Nitrate - N ND 0.40 ND N 1 0.00 0.00 80-120 20 04/20/2023 1226 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 128 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73285-001 Matrix: Aqueous Batch: 73285 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Sulfate ND 1 1.0 0.25 mg/L 04/20/20231014 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 129 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73285-002 Matrix: Aqueous Batch: 73285 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 20 1 102 80-120 04/20/20231051 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 130 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MS Sample ID: YD19013-015MS Matrix: Aqueous Batch: 73285 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate ND 10 8.2 1 82 80-120 04/20/20231207 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 131 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MSD Sample ID: YD19013-015MD Matrix: Aqueous Batch: 73285 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Sulfate ND 10 8.4 1 84 1.8 80-120 20 04/20/20231226 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 132 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73294-001 Matrix: Aqueous Batch: 73294 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Chloride ND 1 1.0 0.25 mg/L 04/20/2023 2303 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 133 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73294-002 Matrix: Aqueous Batch: 73294 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 20 20 1 101 80-120 04/20/2023 2323 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 134 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MS Sample ID: YD19013-031 MS Matrix: Aqueous Batch: 73294 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 5.3 10 15 1 98 80-120 04/21/2023 0026 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 135 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MSD Sample ID: YD19013-031 MD Matrix: Aqueous Batch: 73294 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Chloride 5.3 10 15 1 98 0.37 80-120 20 04/21/2023 0047 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 136 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73299-001 Matrix: Aqueous Batch: 73299 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Nitrate - N ND 1 0.020 0.0050 mg/L 04/20/2023 2303 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 137 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73299-002 Matrix: Aqueous Batch: 73299 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N 0.80 0.80 1 99 80-120 04/20/2023 2323 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 138 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MS Sample ID: YD19013-031 MS Matrix: Aqueous Batch: 73299 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N ND 0.40 0.35 1 88 80-120 04/21/2023 0026 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 139 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MSD Sample ID: YD19013-031 MD Matrix: Aqueous Batch: 73299 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Nitrate - N ND 0.40 0.35 1 87 0.91 80-120 20 04/21/2023 0047 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 140 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73300-001 Matrix: Aqueous Batch:73300 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Sulfate ND 1 1.0 0.25 mg/L 04/20/2023 2303 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 141 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73300-002 Matrix: Aqueous Batch:73300 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 20 1 102 80-120 04/20/2023 2323 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 142 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MS Sample ID: YD19013-031 MS Matrix: Aqueous Batch:73300 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate ND 10 8.1 1 81 80-120 04/21/2023 0026 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 143 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MSD Sample ID: YD19013-031 MD Matrix: Aqueous Batch:73300 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Sulfate ND 10 8.0 1 80 0.73 80-120 20 04/21/2023 0047 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 144 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73336-001 Matrix: Aqueous Batch:73336 Analytical Method: SM 4500-S2 F-2011 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfide ND 1 1.0 1.0 mg/L 04/21/20231348 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 145 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73336-002 Matrix: Aqueous Batch:73336 Analytical Method: SM 4500-S2 F-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfide 10 9.5 1 95 80-120 04/21/20231348 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 146 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73369-001 Matrix: Aqueous Batch: 73369 Analytical Method: SM 4500-S2 F-2011 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfide 9.9 1 1.0 1.0 mg/L 04/22/20231012 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 147 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73369-002 Matrix: Aqueous Batch: 73369 Analytical Method: SM 4500-S2 F-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfide 10 9.0 1 90 80-120 04/22/20231012 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 148 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73576-001 Matrix: Aqueous Batch: 73576 Analytical Method: SM 4500-S2 F-2011 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfide ND 1 1.0 1.0 mg/L 04/25/20231112 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 149 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73576-002 Matrix: Aqueous Batch: 73576 Analytical Method: SM 4500-S2 F-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfide 10 9.6 1 96 80-120 04/25/20231112 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 150 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73684-001 Matrix: Aqueous Batch:73684 Analytical Method: SM 4500-S2 F-2011 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfide ND 1 1.0 1.0 mg/L 04/26/20231052 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 151 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73684-002 Matrix: Aqueous Batch:73684 Analytical Method: SM 4500-S2 F-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfide 10 9.4 1 94 80-120 04/26/20231052 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 152 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73703-001 Matrix: Aqueous Batch:73703 Analytical Method: SM 5220D-2011 Parameter Result Q Dil LOQ DL Units Analysis Date COD ND 1 20 20 mg/L 04/26/20231505 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 153 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73703-002 Matrix: Aqueous Batch:73703 Analytical Method: SM 5220D-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date COD 40 42 1 105 95-105 04/26/20231506 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 154 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MS Sample ID: YD19013-015MS Matrix: Aqueous Batch:73703 Analytical Method: SM 5220D-2011 Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date COD ND 40 43 1 107 90-110 04/26/20231513 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 155 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MSD Sample ID: YD19013-015MD Matrix: Aqueous Batch:73703 Analytical Method: SM 5220D-2011 Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date COD ND 40 41 1 103 3.7 90-110 20 04/26/20231513 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 156 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MS Sample ID: YD19013-031 MS Matrix: Aqueous Batch:73703 Analytical Method: SM 5220D-2011 Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date COD ND 40 42 1 106 90-110 04/26/20231528 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 157 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MSD Sample ID: YD19013-031 MD Matrix: Aqueous Batch:73703 Analytical Method: SM 5220D-2011 Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date COD ND 40 39 1 99 6.9 90-110 20 04/26/20231529 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 158 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73844-002 Matrix: Aqueous Batch:73844 Analytical Method: SM 2320B-2011 Spike Amount Result %Rec Parameter (mg CaCO3/L) (mg CaCO3/L) Q Dil % Rec Limit Analysis Date Alkalinity @ pH 4.5 su 100 96 1 96 90-110 04/26/2023 2241 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 159 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ73922-001 Matrix: Aqueous Batch: 73922 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Nitrate - N ND 1 0.020 0.0050 mg/L 04/27/2023 1936 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 160 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73922-002 Matrix: Aqueous Batch: 73922 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N 0.80 0.83 1 104 80-120 04/27/2023 1955 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 161 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MS Sample ID: YD19013-015MS Matrix: Aqueous Batch: 73922 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N ND 4.0 3.8 10 96 80-120 04/28/2023 0155 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 162 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MSD Sample ID: YD19013-015MD Matrix: Aqueous Batch: 73922 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Nitrate - N ND 4.0 3.9 10 96 0.24 80-120 20 04/28/2023 0214 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 163 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ73973-002 Matrix: Aqueous Batch: 73973 Analytical Method: SM 2320B-2011 Spike Amount Result %Rec Parameter (mg CaCO3/L) (mg CaCO3/L) Q Dil % Rec Limit Analysis Date Alkalinity @ pH 4.5 su 100 92 1 92 90-110 04/27/2023 1948 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 164 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - Duplicate Sample ID: YD19013-031 DU Matrix: Aqueous Batch: 73973 Analytical Method: SM 2320B-2011 Sample Amount Result %RPD Parameter (mg CaCO3/L) (mg CaCO3/L) Q Dil % RPD Limit Analysis Date Alkalinity @ pH 4.5 su 96 97 1 0.17 20 04/27/2023 2002 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 165 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ74238-001 Matrix: Aqueous Batch:74238 Analytical Method: SM 531 OC-2014 Parameter Result Q Dil LOQ DL Units Analysis Date TOC ND 1 1.0 1.0 mg/L 05/02/20231702 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 166 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ74238-002 Matrix: Aqueous Batch:74238 Analytical Method: SM 531 OC-2014 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TOC 20 18 1 91 90-110 05/02/20231713 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 167 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MS Sample ID: YD19013-016MS Matrix: Aqueous Batch:74238 Analytical Method: SM 531 OC-2014 Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TOC 1.2 50 49 1 96 70-130 05/02/2023 2223 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 168 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MSD Sample ID: YD19013-016MD Matrix: Aqueous Batch:74238 Analytical Method: SM 531 OC-2014 Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date TOC 1.2 50 48 1 93 3.0 70-130 20 05/02/2023 2235 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 169 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ74338-001 Matrix: Aqueous Batch:74338 Analytical Method: SM 531 OC-2014 Parameter Result Q Dil LOQ DL Units Analysis Date TOC ND 1 1.0 1.0 mg/L 05/04/2023 0617 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 170 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ74338-002 Matrix: Aqueous Batch:74338 Analytical Method: SM 531 OC-2014 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TOC 40 39 1 98 90-110 05/04/2023 0628 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 171 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - MB Sample ID: YQ74483-001 Matrix: Aqueous Batch:74483 Analytical Method: SM 531 OC-2014 Parameter Result Q Dil LOQ DL Units Analysis Date TOC ND 1 1.0 1.0 mg/L 05/04/20231908 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 172 of 231 QC Data for Lot Number: YD19013 Inorganic non-metals - LCS Sample ID: YQ74483-002 Matrix: Aqueous Batch:74483 Analytical Method: SM 531 OC-2014 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TOC 40 40 1 99 90-110 05/04/20231919 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 173 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73483-001 Matrix: Aqueous Batch: 73483 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone ND 1 10 4.0 ug/L 04/24/2023 1217 Acrylonitrile ND 1 5.0 0.80 ug/L 04/24/2023 1217 Benzene ND 1 0.50 0.40 ug/L 04/24/2023 1217 Bromochloromethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 Bromodichloromethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 Bromoform ND 1 0.50 0.40 ug/L 04/24/2023 1217 Bromomethane (Methyl bromide) ND 1 0.50 0.40 ug/L 04/24/2023 1217 2-Butanone (MEK) ND 1 10 2.0 ug/L 04/24/2023 1217 Carbon disulfide ND 1 0.50 0.40 ug/L 04/24/2023 1217 Carbon tetrachloride ND 1 0.50 0.40 ug/L 04/24/2023 1217 Chlorobenzene ND 1 0.50 0.40 ug/L 04/24/2023 1217 Chloroethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 Chloroform ND 1 0.50 0.40 ug/L 04/24/2023 1217 Chloromethane (Methyl chloride) ND 1 0.50 0.40 ug/L 04/24/2023 1217 1,2-Dibromo-3-chloropropane (DBCP) ND 1 0.50 0.40 ug/L 04/24/2023 1217 Dibromochloromethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 1,2-Dibromoethane (EDB) ND 1 0.50 0.40 ug/L 04/24/2023 1217 Dibromomethane (Methylene bromide) ND 1 0.50 0.40 ug/L 04/24/2023 1217 trans- 1,4-Dichloro-2-butene ND 1 2.0 0.40 ug/L 04/24/2023 1217 1,2-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/24/2023 1217 1,4-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/24/2023 1217 1,1-Dichloroethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 1,2-Dichloroethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 1,1-Dichloroethene ND 1 0.50 0.40 ug/L 04/24/2023 1217 cis- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/24/2023 1217 trans- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/24/2023 1217 1,2-Dichloropropane ND 1 0.50 0.40 ug/L 04/24/2023 1217 cis- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/24/2023 1217 trans- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/24/2023 1217 Ethylbenzene ND 1 0.50 0.40 ug/L 04/24/2023 1217 2-Hexanone ND 1 10 2.0 ug/L 04/24/2023 1217 Methacrylonitrile ND 1 5.0 2.0 ug/L 04/24/2023 1217 Methyl iodide (lodomethane) ND 1 5.0 0.40 ug/L 04/24/2023 1217 4-Methyl-2-pentanone ND 1 10 2.0 ug/L 04/24/2023 1217 Methylene chloride ND 1 0.50 0.40 ug/L 04/24/2023 1217 Styrene ND 1 0.50 0.41 ug/L 04/24/2023 1217 1,1,1,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 1,1,2,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 Tetrachloroethene ND 1 0.50 0.40 ug/L 04/24/2023 1217 Toluene ND 1 0.50 0.40 ug/L 04/24/2023 1217 1,1,1-Trichloroethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 1,1,2-Trichloroethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 Trichloroethene ND 1 0.50 0.40 ug/L 04/24/2023 1217 Trichlorofluoromethane ND 1 0.50 0.40 ug/L 04/24/2023 1217 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 174 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73483-001 Matrix: Aqueous Batch:73483 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date 1,2,3-Trichloropropane ND 1 0.50 0.40 ug/L 04/24/2023 1217 Vinyl acetate ND 1 5.0 1.2 ug/L 04/24/2023 1217 Vinyl chloride ND 1 0.50 0.40 ug/L 04/24/2023 1217 Xylenes (total) ND 1 1.0 0.40 ug/L 04/24/2023 1217 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 95 70-130 1,2-Dichloroethane-d4 114 70-130 Toluene-d8 106 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 175 of 231 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73483-002 Matrix: Aqueous Batch: 73483 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 180 N 1 182 60-140 04/24/2023 1103 Acrylonitrile 100 130 1 130 70-130 04/24/2023 1103 Benzene 50 53 1 107 70-130 04/24/2023 1103 Bromochloromethane 50 51 1 103 70-130 04/24/2023 1103 Bromodichloromethane 50 56 1 112 70-130 04/24/2023 1103 Bromoform 50 46 1 92 70-130 04/24/2023 1103 Bromomethane (Methyl bromide) 50 44 1 88 70-130 04/24/2023 1103 2-Butanone (MEK) 100 150 N 1 150 70-130 04/24/2023 1103 Carbon disulfide 50 53 1 106 70-130 04/24/2023 1103 Carbon tetrachloride 50 58 1 115 70-130 04/24/2023 1103 Chlorobenzene 50 53 1 105 70-130 04/24/2023 1103 Chloroethane 50 44 1 88 70-130 04/24/2023 1103 Chloroform 50 54 1 108 70-130 04/24/2023 1103 Chloromethane (Methyl chloride) 50 41 1 81 60-140 04/24/2023 1103 1,2-Dibromo-3-chloropropane (DBCP) 50 54 1 109 70-130 04/24/2023 1103 Dibromochloromethane 50 56 1 113 70-130 04/24/2023 1103 1,2-Dibromoethane (EDB) 50 56 1 112 70-130 04/24/2023 1103 Dibromomethane (Methylene bromide) 50 53 1 106 70-130 04/24/2023 1103 trans- 1,4-Dichloro-2-butene 50 56 1 113 70-130 04/24/2023 1103 1,2-Dichlorobenzene 50 53 1 105 70-130 04/24/2023 1103 1,4-Dichlorobenzene 50 51 1 103 70-130 04/24/2023 1103 1,1-Dichloroethane 50 55 1 109 70-130 04/24/2023 1103 1,2-Dichloroethane 50 55 1 110 70-130 04/24/2023 1103 1,1-Dichloroethene 50 54 1 107 70-130 04/24/2023 1103 cis- 1,2-Dichloroethene 50 52 1 104 70-130 04/24/2023 1103 trans- 1,2-Dichloroethene 50 52 1 104 70-130 04/24/2023 1103 1,2-Dichloropropane 50 56 1 112 70-130 04/24/2023 1103 cis- 1,3-Dichloropropene 50 57 1 114 70-130 04/24/2023 1103 trans- 1,3-Dichloropropene 50 57 1 114 70-130 04/24/2023 1103 Ethylbenzene 50 54 1 108 70-130 04/24/2023 1103 2-Hexanone 100 130 1 128 70-130 04/24/2023 1103 Methacrylonitrile 250 330 1 130 70-130 04/24/2023 1103 Methyl iodide (lodomethane) 50 50 1 101 70-130 04/24/2023 1103 4-Methyl-2-pentanone 100 120 1 116 70-130 04/24/2023 1103 Methylene chloride 50 56 1 111 70-130 04/24/2023 1103 Styrene 50 56 1 112 70-130 04/24/2023 1103 1,1,1,2-Tetrachloroethane 50 55 1 109 70-130 04/24/2023 1103 1,1,2,2-Tetrachloroethane 50 58 1 115 70-130 04/24/2023 1103 Tetrachloroethene 50 50 1 100 70-130 04/24/2023 1103 Toluene 50 53 1 107 70-130 04/24/2023 1103 1,1,1-Trichloroethane 50 54 1 108 70-130 04/24/2023 1103 1,1,2-Trichloroethane 50 55 1 110 70-130 04/24/2023 1103 Trichloroethene 50 51 1 102 70-130 04/24/2023 1103 Trichlorofluoromethane 50 42 1 85 70-130 04/24/2023 1103 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 176 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73483-002 Matrix: Aqueous Batch:73483 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date 1,2,3-Trichloropropane 50 56 1 113 70-130 04/24/2023 1103 Vinyl acetate 50 54 1 109 60-140 04/24/2023 1103 Vinyl chloride 50 41 1 81 70-130 04/24/2023 1103 Xylenes (total) 100 110 1 107 70-130 04/24/2023 1103 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 96 70-130 1,2-Dichloroethane-d4 99 70-130 Toluene-d8 98 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 177 of 231 Volatile Organic Compounds by GC/MS - Duplicate Sample ID: YD19013-001 DU Matrix: Aqueous Batch: 73483 Prep Method: 5030E Analytical Method: 8260D Sample Amount Result %RPD Parameter (ug/L) (ug/L) Q Dil % RPD Limit Analysis Date Acetone ND ND 1 0.00 20 04/24/2023 1909 Acrylonitrile ND ND 1 0.00 20 04/24/2023 1909 Benzene ND ND 1 0.00 20 04/24/2023 1909 Bromochloromethane ND ND 1 0.00 20 04/24/2023 1909 Bromodichloromethane ND ND 1 0.00 20 04/24/2023 1909 Bromoform ND ND 1 0.00 20 04/24/2023 1909 Bromomethane (Methyl bromide) ND ND 1 0.00 20 04/24/2023 1909 2-Butanone (MEK) ND ND 1 0.00 20 04/24/2023 1909 Carbon disulfide ND ND 1 0.00 20 04/24/2023 1909 Carbon tetrachloride ND ND 1 0.00 20 04/24/2023 1909 Chlorobenzene ND ND 1 0.00 20 04/24/2023 1909 Chloroethane ND ND 1 0.00 20 04/24/2023 1909 Chloroform ND ND 1 0.00 20 04/24/2023 1909 Chloromethane (Methyl chloride) ND ND 1 0.00 20 04/24/2023 1909 1,2-Dibromo-3-chloropropane (DBCP) ND ND 1 0.00 20 04/24/2023 1909 Dibromochloromethane ND ND 1 0.00 20 04/24/2023 1909 1,2-Dibromoethane (EDB) ND ND 1 0.00 20 04/24/2023 1909 Dibromomethane (Methylene bromide) ND ND 1 0.00 20 04/24/2023 1909 trans- 1,4-Dichloro-2-butene ND ND 1 0.00 20 04/24/2023 1909 1,2-Dichlorobenzene ND ND 1 0.00 20 04/24/2023 1909 1,4-Dichlorobenzene ND ND 1 0.00 20 04/24/2023 1909 1,1-Dichloroethane ND ND 1 0.00 20 04/24/2023 1909 1,2-Dichloroethane ND ND 1 0.00 20 04/24/2023 1909 1,1-Dichloroethene ND ND 1 0.00 20 04/24/2023 1909 cis- 1,2-Dichloroethene 0.58 0.61 1 6.2 20 04/24/2023 1909 trans- 1,2-Dichloroethene ND ND 1 0.00 20 04/24/2023 1909 1,2-Dichloropropane ND ND 1 0.00 20 04/24/2023 1909 cis- 1,3-Dichloropropene ND ND 1 0.00 20 04/24/2023 1909 trans- 1,3-Dichloropropene ND ND 1 0.00 20 04/24/2023 1909 Ethylbenzene ND ND 1 0.00 20 04/24/2023 1909 2-Hexanone ND ND 1 0.00 20 04/24/2023 1909 Methacrylonitrile ND ND 1 0.00 20 04/24/2023 1909 Methyl iodide (lodomethane) ND ND 1 0.00 20 04/24/2023 1909 4-Methyl-2-pentanone ND ND 1 0.00 20 04/24/2023 1909 Methylene chloride ND ND 1 0.00 20 04/24/2023 1909 Styrene ND ND 1 0.00 20 04/24/2023 1909 1,1,1,2-Tetrachloroethane ND ND 1 0.00 20 04/24/2023 1909 1,1,2,2-Tetrachloroethane ND ND 1 0.00 20 04/24/2023 1909 Tetrachloroethene ND ND 1 0.00 20 04/24/2023 1909 Toluene ND ND 1 0.00 20 04/24/2023 1909 1,1,1-Trichloroethane ND ND 1 0.00 20 04/24/2023 1909 1,1,2-Trichloroethane ND ND 1 0.00 20 04/24/2023 1909 Trichloroethene ND ND 1 0.00 20 04/24/2023 1909 Trichlorofluoromethane ND ND 1 0.00 20 04/24/2023 1909 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 178 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - Duplicate Sample ID: YD19013-001 DU Matrix: Aqueous Batch:73483 Prep Method: 5030E Analytical Method: 8260D Sample Amount Result %RPD Parameter (ug/L) (ug/L) Q Dil % RPD Limit Analysis Date 1,2,3-Trichloropropane ND ND 1 0.00 20 04/24/2023 1909 Vinyl acetate ND ND 1 0.00 20 04/24/2023 1909 Vinyl chloride ND ND 1 0.00 20 04/24/2023 1909 Xylenes (total) ND ND 1 0.00 20 04/24/2023 1909 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 97 70-130 1,2-Dichloroethane-d4 115 70-130 Toluene-d8 106 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 179 of 231 Volatile Organic Compounds by GC/MS - MS Sample ID: YD19013-001 MS Matrix: Aqueous Batch: 73483 Prep Method: 5030E Analytical Method: 8260D Sample Spike Amount Amount Result %Rec Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone ND 100 94 1 94 60-140 04/24/2023 1933 Acrylonitrile ND 100 120 1 116 70-130 04/24/2023 1933 Benzene ND 50 55 1 110 70-130 04/24/2023 1933 Bromochloromethane ND 50 48 1 96 70-130 04/24/2023 1933 Bromodichloromethane ND 50 54 1 109 70-130 04/24/2023 1933 Bromoform ND 50 43 1 87 70-130 04/24/2023 1933 Bromomethane (Methyl bromide) ND 50 47 1 95 70-130 04/24/2023 1933 2-Butanone (MEK) ND 100 110 1 112 70-130 04/24/2023 1933 Carbon disulfide ND 50 57 1 114 70-130 04/24/2023 1933 Carbon tetrachloride ND 50 60 1 119 70-130 04/24/2023 1933 Chlorobenzene ND 50 53 1 106 70-130 04/24/2023 1933 Chloroethane ND 50 55 1 109 70-130 04/24/2023 1933 Chloroform ND 50 54 1 107 70-130 04/24/2023 1933 Chloromethane (Methyl chloride) ND 50 44 1 87 60-140 04/24/2023 1933 1,2-Dibromo-3-chloropropane (DBCP) ND 50 50 1 99 70-130 04/24/2023 1933 Dibromochloromethane ND 50 54 1 108 70-130 04/24/2023 1933 1,2-Dibromoethane (EDB) ND 50 54 1 108 70-130 04/24/2023 1933 Dibromomethane (Methylene bromide) ND 50 50 1 99 70-130 04/24/2023 1933 trans- 1,4-Dichloro-2-butene ND 50 55 1 110 70-142 04/24/2023 1933 1,2-Dichlorobenzene ND 50 52 1 104 70-130 04/24/2023 1933 1,4-Dichlorobenzene ND 50 51 1 101 70-130 04/24/2023 1933 1,1-Dichloroethane ND 50 55 1 111 70-130 04/24/2023 1933 1,2-Dichloroethane ND 50 53 1 106 70-130 04/24/2023 1933 1,1-Dichloroethene ND 50 56 1 112 70-130 04/24/2023 1933 cis- 1,2-Dichloroethene 0.58 50 51 1 101 70-130 04/24/2023 1933 trans- 1,2-Dichloroethene ND 50 53 1 107 70-130 04/24/2023 1933 1,2-Dichloropropane ND 50 56 1 112 70-130 04/24/2023 1933 cis- 1,3-Dichloropropene ND 50 54 1 107 70-130 04/24/2023 1933 trans- 1,3-Dichloropropene ND 50 54 1 107 70-130 04/24/2023 1933 Ethylbenzene ND 50 56 1 112 70-130 04/24/2023 1933 2-Hexanone ND 100 120 1 118 70-130 04/24/2023 1933 Methacrylonitrile ND 250 310 1 123 70-130 04/24/2023 1933 Methyl iodide (lodomethane) ND 50 49 1 98 70-130 04/24/2023 1933 4-Methyl-2-pentanone ND 100 110 1 113 70-130 04/24/2023 1933 Methylene chloride ND 50 54 1 108 70-130 04/24/2023 1933 Styrene ND 50 57 1 115 70-130 04/24/2023 1933 1,1,1,2-Tetrachloroethane ND 50 52 1 104 70-130 04/24/2023 1933 1,1,2,2-Tetrachloroethane ND 50 56 1 113 70-130 04/24/2023 1933 Tetrachloroethene ND 50 52 1 105 70-130 04/24/2023 1933 Toluene ND 50 55 1 110 70-130 04/24/2023 1933 1,1,1-Trichloroethane ND 50 54 1 108 70-130 04/24/2023 1933 1,1,2-Trichloroethane ND 50 55 1 110 70-130 04/24/2023 1933 Trichloroethene ND 50 51 1 102 70-130 04/24/2023 1933 Trichlorofluoromethane ND 50 50 1 99 70-130 04/24/2023 1933 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 180 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - MS Sample ID: YD19013-001 MS Matrix: Aqueous Batch:73483 Prep Method: 5030E Analytical Method: 8260D Sample Spike Amount Amount Result %Rec Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date 1,2,3-Trichloropropane ND 50 55 1 111 70-130 04/24/2023 1933 Vinyl acetate ND 50 50 1 99 60-140 04/24/2023 1933 Vinyl chloride ND 50 46 1 92 70-130 04/24/2023 1933 Xylenes (total) ND 100 110 1 109 70-130 04/24/2023 1933 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 101 70-130 1,2-Dichloroethane-d4 100 70-130 Toluene-d8 104 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 181 of 231 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73539-001 Matrix: Aqueous Batch: 73539 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone ND 1 10 4.0 ug/L 04/24/2023 2148 Acrylonitrile ND 1 5.0 0.80 ug/L 04/24/2023 2148 Benzene ND 1 0.50 0.40 ug/L 04/24/2023 2148 Bromochloromethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 Bromodichloromethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 Bromoform ND 1 0.50 0.40 ug/L 04/24/2023 2148 Bromomethane (Methyl bromide) ND 1 0.50 0.40 ug/L 04/24/2023 2148 2-Butanone (MEK) ND 1 10 2.0 ug/L 04/24/2023 2148 Carbon disulfide ND 1 0.50 0.40 ug/L 04/24/2023 2148 Carbon tetrachloride ND 1 0.50 0.40 ug/L 04/24/2023 2148 Chlorobenzene ND 1 0.50 0.40 ug/L 04/24/2023 2148 Chloroethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 Chloroform ND 1 0.50 0.40 ug/L 04/24/2023 2148 Chloromethane (Methyl chloride) ND 1 0.50 0.40 ug/L 04/24/2023 2148 1,2-Dibromo-3-chloropropane (DBCP) ND 1 0.50 0.40 ug/L 04/24/2023 2148 Dibromochloromethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 1,2-Dibromoethane (EDB) ND 1 0.50 0.40 ug/L 04/24/2023 2148 Dibromomethane (Methylene bromide) ND 1 0.50 0.40 ug/L 04/24/2023 2148 trans- 1,4-Dichloro-2-butene ND 1 2.0 0.40 ug/L 04/24/2023 2148 1,2-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/24/2023 2148 1,4-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/24/2023 2148 1,1-Dichloroethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 1,2-Dichloroethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 1,1-Dichloroethene ND 1 0.50 0.40 ug/L 04/24/2023 2148 cis- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/24/2023 2148 trans- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/24/2023 2148 1,2-Dichloropropane ND 1 0.50 0.40 ug/L 04/24/2023 2148 cis- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/24/2023 2148 trans- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/24/2023 2148 Ethylbenzene ND 1 0.50 0.40 ug/L 04/24/2023 2148 2-Hexanone ND 1 10 2.0 ug/L 04/24/2023 2148 Methacrylonitrile ND 1 5.0 2.0 ug/L 04/24/2023 2148 Methyl iodide (lodomethane) ND 1 5.0 0.40 ug/L 04/24/2023 2148 4-Methyl-2-pentanone ND 1 10 2.0 ug/L 04/24/2023 2148 Methylene chloride ND 1 0.50 0.40 ug/L 04/24/2023 2148 Styrene ND 1 0.50 0.41 ug/L 04/24/2023 2148 1,1,1,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 1,1,2,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 Tetrachloroethene ND 1 0.50 0.40 ug/L 04/24/2023 2148 Toluene ND 1 0.50 0.40 ug/L 04/24/2023 2148 1,1,1-Trichloroethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 1,1,2-Trichloroethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 Trichloroethene ND 1 0.50 0.40 ug/L 04/24/2023 2148 Trichlorofluoromethane ND 1 0.50 0.40 ug/L 04/24/2023 2148 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 182 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73539-001 Matrix: Aqueous Batch: 73539 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date 1,2,3-Trichloropropane ND 1 0.50 0.40 ug/L 04/24/2023 2148 Vinyl acetate ND 1 5.0 1.2 ug/L 04/24/2023 2148 Vinyl chloride ND 1 0.50 0.40 ug/L 04/24/2023 2148 Xylenes (total) ND 1 1.0 0.40 ug/L 04/24/2023 2148 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 109 70-130 1,2-Dichloroethane-d4 96 70-130 Toluene-d8 98 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 183 of 231 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73539-002 Matrix: Aqueous Batch: 73539 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 110 1 105 60-140 04/24/2023 2020 Acrylonitrile 100 91 1 91 70-130 04/24/2023 2020 Benzene 50 49 1 98 70-130 04/24/2023 2020 Bromochloromethane 50 48 1 97 70-130 04/24/2023 2020 Bromodichloromethane 50 53 1 105 70-130 04/24/2023 2020 Bromoform 50 50 1 101 70-130 04/24/2023 2020 Bromomethane (Methyl bromide) 50 48 1 97 70-130 04/24/2023 2020 2-Butanone (MEK) 100 100 1 101 70-130 04/24/2023 2020 Carbon disulfide 50 57 1 114 70-130 04/24/2023 2020 Carbon tetrachloride 50 53 1 106 70-130 04/24/2023 2020 Chlorobenzene 50 49 1 99 70-130 04/24/2023 2020 Chloroethane 50 51 1 101 70-130 04/24/2023 2020 Chloroform 50 51 1 101 70-130 04/24/2023 2020 Chloromethane (Methyl chloride) 50 49 1 98 60-140 04/24/2023 2020 1,2-Dibromo-3-chloropropane (DBCP) 50 32 N 1 64 70-130 04/24/2023 2020 Dibromochloromethane 50 53 1 107 70-130 04/24/2023 2020 1,2-Dibromoethane (EDB) 50 49 1 98 70-130 04/24/2023 2020 Dibromomethane (Methylene bromide) 50 47 1 93 70-130 04/24/2023 2020 trans- 1,4-Dichloro-2-butene 50 54 1 108 70-130 04/24/2023 2020 1,2-Dichlorobenzene 50 43 1 87 70-130 04/24/2023 2020 1,4-Dichlorobenzene 50 47 1 94 70-130 04/24/2023 2020 1,1-Dichloroethane 50 49 1 98 70-130 04/24/2023 2020 1,2-Dichloroethane 50 48 1 96 70-130 04/24/2023 2020 1,1-Dichloroethene 50 56 1 111 70-130 04/24/2023 2020 cis- 1,2-Dichloroethene 50 48 1 96 70-130 04/24/2023 2020 trans- 1,2-Dichloroethene 50 48 1 97 70-130 04/24/2023 2020 1,2-Dichloropropane 50 49 1 98 70-130 04/24/2023 2020 cis- 1,3-Dichloropropene 50 55 1 111 70-130 04/24/2023 2020 trans- 1,3-Dichloropropene 50 48 1 95 70-130 04/24/2023 2020 Ethylbenzene 50 51 1 103 70-130 04/24/2023 2020 2-Hexanone 100 100 1 101 70-130 04/24/2023 2020 Methacrylonitrile 250 240 1 97 70-130 04/24/2023 2020 Methyl iodide (lodomethane) 50 56 1 112 70-130 04/24/2023 2020 4-Methyl-2-pentanone 100 99 1 99 70-130 04/24/2023 2020 Methylene chloride 50 55 1 111 70-130 04/24/2023 2020 Styrene 50 54 1 108 70-130 04/24/2023 2020 1,1,1,2-Tetrachloroethane 50 50 1 100 70-130 04/24/2023 2020 1,1,2,2-Tetrachloroethane 50 50 1 99 70-130 04/24/2023 2020 Tetrachloroethene 50 49 1 98 70-130 04/24/2023 2020 Toluene 50 50 1 101 70-130 04/24/2023 2020 1,1,1-Trichloroethane 50 53 1 105 70-130 04/24/2023 2020 1,1,2-Trichloroethane 50 47 1 94 70-130 04/24/2023 2020 Trichloroethene 50 51 1 101 70-130 04/24/2023 2020 Trichlorofluoromethane 50 55 1 110 70-130 04/24/2023 2020 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 184 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73539-002 Matrix: Aqueous Batch: 73539 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date 1,2,3-Trichloropropane 50 45 1 91 70-130 04/24/2023 2020 Vinyl acetate 50 48 1 96 60-140 04/24/2023 2020 Vinyl chloride 50 51 1 102 70-130 04/24/2023 2020 Xylenes (total) 100 100 1 103 70-130 04/24/2023 2020 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 95 70-130 1,2-Dichloroethane-d4 87 70-130 Toluene-d8 92 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 185 of 231 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73590-001 Matrix: Aqueous Batch: 73590 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone ND 1 10 4.0 ug/L 04/25/2023 1142 Acrylonitrile ND 1 5.0 0.80 ug/L 04/25/2023 1142 Benzene ND 1 0.50 0.40 ug/L 04/25/2023 1142 Bromochloromethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 Bromodichloromethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 Bromoform ND 1 0.50 0.40 ug/L 04/25/2023 1142 Bromomethane (Methyl bromide) ND 1 0.50 0.40 ug/L 04/25/2023 1142 2-Butanone (MEK) ND 1 10 2.0 ug/L 04/25/2023 1142 Carbon disulfide ND 1 0.50 0.40 ug/L 04/25/2023 1142 Carbon tetrachloride ND 1 0.50 0.40 ug/L 04/25/2023 1142 Chlorobenzene ND 1 0.50 0.40 ug/L 04/25/2023 1142 Chloroethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 Chloroform ND 1 0.50 0.40 ug/L 04/25/2023 1142 Chloromethane (Methyl chloride) ND 1 0.50 0.40 ug/L 04/25/2023 1142 1,2-Dibromo-3-chloropropane (DBCP) ND 1 0.50 0.40 ug/L 04/25/2023 1142 Dibromochloromethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 1,2-Dibromoethane (EDB) ND 1 0.50 0.40 ug/L 04/25/2023 1142 Dibromomethane (Methylene bromide) ND 1 0.50 0.40 ug/L 04/25/2023 1142 trans- 1,4-Dichloro-2-butene ND 1 2.0 0.40 ug/L 04/25/2023 1142 1,2-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/25/2023 1142 1,4-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/25/2023 1142 1,1-Dichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 1,2-Dichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 1,1-Dichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 1142 cis- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 1142 trans- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 1142 1,2-Dichloropropane ND 1 0.50 0.40 ug/L 04/25/2023 1142 cis- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/25/2023 1142 trans- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/25/2023 1142 Ethylbenzene ND 1 0.50 0.40 ug/L 04/25/2023 1142 2-Hexanone ND 1 10 2.0 ug/L 04/25/2023 1142 Methacrylonitrile ND 1 5.0 2.0 ug/L 04/25/2023 1142 Methyl iodide (lodomethane) ND 1 5.0 0.40 ug/L 04/25/2023 1142 4-Methyl-2-pentanone ND 1 10 2.0 ug/L 04/25/2023 1142 Methylene chloride ND 1 0.50 0.40 ug/L 04/25/2023 1142 Styrene ND 1 0.50 0.41 ug/L 04/25/2023 1142 1,1,1,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 1,1,2,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 Tetrachloroethene ND 1 0.50 0.40 ug/L 04/25/2023 1142 Toluene ND 1 0.50 0.40 ug/L 04/25/2023 1142 1,1,1-Trichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 1,1,2-Trichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 Trichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 1142 Trichlorofluoromethane ND 1 0.50 0.40 ug/L 04/25/2023 1142 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 186 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73590-001 Matrix: Aqueous Batch:73590 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date 1,2,3-Trichloropropane ND 1 0.50 0.40 ug/L 04/25/2023 1142 Vinyl acetate ND 1 5.0 1.2 ug/L 04/25/2023 1142 Vinyl chloride ND 1 0.50 0.40 ug/L 04/25/2023 1142 Xylenes (total) ND 1 1.0 0.40 ug/L 04/25/2023 1142 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 98 70-130 1,2-Dichloroethane-d4 112 70-130 Toluene-d8 105 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 187 of 231 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73590-002 Matrix: Aqueous Batch: 73590 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 160 N 1 161 60-140 04/25/2023 0950 Acrylonitrile 100 120 1 122 70-130 04/25/2023 0950 Benzene 50 51 1 102 70-130 04/25/2023 0950 Bromochloromethane 50 47 1 95 70-130 04/25/2023 0950 Bromodichloromethane 50 53 1 106 70-130 04/25/2023 0950 Bromoform 50 45 1 90 70-130 04/25/2023 0950 Bromomethane (Methyl bromide) 50 45 1 89 70-130 04/25/2023 0950 2-Butanone (MEK) 100 140 N 1 136 70-130 04/25/2023 0950 Carbon disulfide 50 50 1 100 70-130 04/25/2023 0950 Carbon tetrachloride 50 54 1 109 70-130 04/25/2023 0950 Chlorobenzene 50 50 1 100 70-130 04/25/2023 0950 Chloroethane 50 44 1 88 70-130 04/25/2023 0950 Chloroform 50 51 1 101 70-130 04/25/2023 0950 Chloromethane (Methyl chloride) 50 40 1 80 60-140 04/25/2023 0950 1,2-Dibromo-3-chloropropane (DBCP) 50 50 1 100 70-130 04/25/2023 0950 Dibromochloromethane 50 54 1 108 70-130 04/25/2023 0950 1,2-Dibromoethane (EDB) 50 52 1 104 70-130 04/25/2023 0950 Dibromomethane (Methylene bromide) 50 50 1 100 70-130 04/25/2023 0950 trans- 1,4-Dichloro-2-butene 50 55 1 110 70-130 04/25/2023 0950 1,2-Dichlorobenzene 50 49 1 97 70-130 04/25/2023 0950 1,4-Dichlorobenzene 50 48 1 95 70-130 04/25/2023 0950 1,1-Dichloroethane 50 51 1 102 70-130 04/25/2023 0950 1,2-Dichloroethane 50 51 1 102 70-130 04/25/2023 0950 1,1-Dichloroethene 50 51 1 102 70-130 04/25/2023 0950 cis- 1,2-Dichloroethene 50 49 1 97 70-130 04/25/2023 0950 trans- 1,2-Dichloroethene 50 49 1 99 70-130 04/25/2023 0950 1,2-Dichloropropane 50 52 1 105 70-130 04/25/2023 0950 cis- 1,3-Dichloropropene 50 53 1 106 70-130 04/25/2023 0950 trans- 1,3-Dichloropropene 50 54 1 108 70-130 04/25/2023 0950 Ethylbenzene 50 51 1 102 70-130 04/25/2023 0950 2-Hexanone 100 120 1 120 70-130 04/25/2023 0950 Methacrylonitrile 250 300 1 121 70-130 04/25/2023 0950 Methyl iodide (lodomethane) 50 47 1 94 70-130 04/25/2023 0950 4-Methyl-2-pentanone 100 110 1 107 70-130 04/25/2023 0950 Methylene chloride 50 52 1 105 70-130 04/25/2023 0950 Styrene 50 53 1 106 70-130 04/25/2023 0950 1,1,1,2-Tetrachloroethane 50 52 1 104 70-130 04/25/2023 0950 1,1,2,2-Tetrachloroethane 50 54 1 108 70-130 04/25/2023 0950 Tetrachloroethene 50 48 1 95 70-130 04/25/2023 0950 Toluene 50 50 1 100 70-130 04/25/2023 0950 1,1,1-Trichloroethane 50 51 1 101 70-130 04/25/2023 0950 1,1,2-Trichloroethane 50 52 1 104 70-130 04/25/2023 0950 Trichloroethene 50 48 1 96 70-130 04/25/2023 0950 Trichlorofluoromethane 50 44 1 88 70-130 04/25/2023 0950 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 188 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73590-002 Matrix: Aqueous Batch:73590 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date 1,2,3-Trichloropropane 50 52 1 103 70-130 04/25/2023 0950 Vinyl acetate 50 50 1 100 60-140 04/25/2023 0950 Vinyl chloride 50 42 1 84 70-130 04/25/2023 0950 Xylenes (total) 100 100 1 102 70-130 04/25/2023 0950 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 97 70-130 1,2-Dichloroethane-d4 98 70-130 Toluene-d8 97 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 189 of 231 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73639-001 Matrix: Aqueous Batch: 73639 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone ND 1 10 4.0 ug/L 04/25/2023 2115 Acrylonitrile ND 1 5.0 0.80 ug/L 04/25/2023 2115 Benzene ND 1 0.50 0.40 ug/L 04/25/2023 2115 Bromochloromethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Bromodichloromethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Bromoform ND 1 0.50 0.40 ug/L 04/25/2023 2115 Bromomethane (Methyl bromide) ND 1 0.50 0.40 ug/L 04/25/2023 2115 2-Butanone (MEK) ND 1 10 2.0 ug/L 04/25/2023 2115 Carbon disulfide ND 1 0.50 0.40 ug/L 04/25/2023 2115 Carbon tetrachloride ND 1 0.50 0.40 ug/L 04/25/2023 2115 Chlorobenzene ND 1 0.50 0.40 ug/L 04/25/2023 2115 Chloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Chloroform ND 1 0.50 0.40 ug/L 04/25/2023 2115 Chloromethane (Methyl chloride) ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,2-Dibromo-3-chloropropane (DBCP) ND 1 0.50 0.40 ug/L 04/25/2023 2115 Dibromochloromethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,2-Dibromoethane (EDB) ND 1 0.50 0.40 ug/L 04/25/2023 2115 Dibromomethane (Methylene bromide) ND 1 0.50 0.40 ug/L 04/25/2023 2115 trans- 1,4-Dichloro-2-butene ND 1 2.0 0.40 ug/L 04/25/2023 2115 1,2-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,4-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,1-Dichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,2-Dichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,1-Dichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 2115 cis- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 2115 trans- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,2-Dichloropropane ND 1 0.50 0.40 ug/L 04/25/2023 2115 cis- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/25/2023 2115 trans- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/25/2023 2115 Ethylbenzene ND 1 0.50 0.40 ug/L 04/25/2023 2115 2-Hexanone ND 1 10 2.0 ug/L 04/25/2023 2115 Methacrylonitrile ND 1 5.0 2.0 ug/L 04/25/2023 2115 Methyl iodide (lodomethane) ND 1 5.0 0.40 ug/L 04/25/2023 2115 4-Methyl-2-pentanone ND 1 10 2.0 ug/L 04/25/2023 2115 Methylene chloride ND 1 0.50 0.40 ug/L 04/25/2023 2115 Styrene ND 1 0.50 0.41 ug/L 04/25/2023 2115 1,1,1,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,1,2,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Tetrachloroethene ND 1 0.50 0.40 ug/L 04/25/2023 2115 Toluene ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,1,1-Trichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,1,2-Trichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Trichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 2115 Trichlorofluoromethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 190 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73639-001 Matrix: Aqueous Batch:73639 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date 1,2,3-Trichloropropane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Vinyl acetate ND 1 5.0 1.2 ug/L 04/25/2023 2115 Vinyl chloride ND 1 0.50 0.40 ug/L 04/25/2023 2115 Xylenes (total) ND 1 1.0 0.40 ug/L 04/25/2023 2115 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 105 70-130 1,2-Dichloroethane-d4 114 70-130 Toluene-d8 110 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 191 of 231 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73639-002 Matrix: Aqueous Batch: 73639 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 110 1 110 60-140 04/25/2023 1901 Acrylonitrile 100 96 1 96 70-130 04/25/2023 1901 Benzene 50 49 1 99 70-130 04/25/2023 1901 Bromochloromethane 50 47 1 94 70-130 04/25/2023 1901 Bromodichloromethane 50 47 1 95 70-130 04/25/2023 1901 Bromoform 50 49 1 99 70-130 04/25/2023 1901 Bromomethane (Methyl bromide) 50 61 1 121 70-130 04/25/2023 1901 2-Butanone (MEK) 100 100 1 103 70-130 04/25/2023 1901 Carbon disulfide 50 47 1 93 70-130 04/25/2023 1901 Carbon tetrachloride 50 50 1 99 70-130 04/25/2023 1901 Chlorobenzene 50 50 1 99 70-130 04/25/2023 1901 Chloroethane 50 59 1 119 70-130 04/25/2023 1901 Chloroform 50 49 1 99 70-130 04/25/2023 1901 Chloromethane (Methyl chloride) 50 72 N 1 143 60-140 04/25/2023 1901 1,2-Dibromo-3-chloropropane (DBCP) 50 46 1 93 70-130 04/25/2023 1901 Dibromochloromethane 50 49 1 99 70-130 04/25/2023 1901 1,2-Dibromoethane (EDB) 50 51 1 101 70-130 04/25/2023 1901 Dibromomethane (Methylene bromide) 50 48 1 96 70-130 04/25/2023 1901 trans- 1,4-Dichloro-2-butene 50 46 1 91 70-130 04/25/2023 1901 1,2-Dichlorobenzene 50 47 1 94 70-130 04/25/2023 1901 1,4-Dichlorobenzene 50 46 1 92 70-130 04/25/2023 1901 1,1-Dichloroethane 50 46 1 93 70-130 04/25/2023 1901 1,2-Dichloroethane 50 47 1 95 70-130 04/25/2023 1901 1,1-Dichloroethene 50 50 1 100 70-130 04/25/2023 1901 cis- 1,2-Dichloroethene 50 48 1 96 70-130 04/25/2023 1901 trans- 1,2-Dichloroethene 50 48 1 96 70-130 04/25/2023 1901 1,2-Dichloropropane 50 48 1 96 70-130 04/25/2023 1901 cis- 1,3-Dichloropropene 50 53 1 105 70-130 04/25/2023 1901 trans- 1,3-Dichloropropene 50 52 1 104 70-130 04/25/2023 1901 Ethylbenzene 50 56 1 111 70-130 04/25/2023 1901 2-Hexanone 100 98 1 98 70-130 04/25/2023 1901 Methacrylonitrile 250 260 1 103 70-130 04/25/2023 1901 Methyl iodide (lodomethane) 50 46 1 92 70-130 04/25/2023 1901 4-Methyl-2-pentanone 100 110 1 107 70-130 04/25/2023 1901 Methylene chloride 50 52 1 104 70-130 04/25/2023 1901 Styrene 50 51 1 102 70-130 04/25/2023 1901 1,1,1,2-Tetrachloroethane 50 48 1 96 70-130 04/25/2023 1901 1,1,2,2-Tetrachloroethane 50 45 1 89 70-130 04/25/2023 1901 Tetrachloroethene 50 54 1 107 70-130 04/25/2023 1901 Toluene 50 53 1 106 70-130 04/25/2023 1901 1,1,1-Trichloroethane 50 47 1 95 70-130 04/25/2023 1901 1,1,2-Trichloroethane 50 47 1 95 70-130 04/25/2023 1901 Trichloroethene 50 52 1 103 70-130 04/25/2023 1901 Trichlorofluoromethane 50 62 1 123 70-130 04/25/2023 1901 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 192 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73639-002 Matrix: Aqueous Batch:73639 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date 1,2,3-Trichloropropane 50 46 1 91 70-130 04/25/2023 1901 Vinyl acetate 50 46 1 92 60-140 04/25/2023 1901 Vinyl chloride 50 65 N 1 131 70-130 04/25/2023 1901 Xylenes (total) 100 110 1 113 70-130 04/25/2023 1901 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 113 70-130 1,2-Dichloroethane-d4 97 70-130 Toluene-d8 109 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 193 of 231 Volatile Organic Compounds by GC/MS - LCSD Sample ID: YQ73639-003 Matrix: Aqueous Batch: 73639 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec % RPD Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Acetone 100 110 1 106 4.4 60-140 20 04/25/2023 1948 Acrylonitrile 100 94 1 94 1.8 70-130 40 04/25/2023 1948 Benzene 50 48 1 97 2.0 70-130 20 04/25/2023 1948 Bromochloromethane 50 48 1 95 1.1 70-130 20 04/25/2023 1948 Bromodichloromethane 50 46 1 93 1.8 70-130 20 04/25/2023 1948 Bromoform 50 47 1 93 6.0 70-130 20 04/25/2023 1948 Bromomethane (Methyl bromide) 50 61 1 121 0.033 70-130 20 04/25/2023 1948 2-Butanone (MEK) 100 99 1 99 4.8 70-130 20 04/25/2023 1948 Carbon disulfide 50 48 1 97 3.8 70-130 20 04/25/2023 1948 Carbon tetrachloride 50 49 1 97 1.7 70-130 20 04/25/2023 1948 Chlorobenzene 50 48 1 96 3.2 70-130 20 04/25/2023 1948 Chloroethane 50 59 1 118 0.086 70-130 20 04/25/2023 1948 Chloroform 50 50 1 100 0.95 70-130 20 04/25/2023 1948 Chloromethane (Methyl chloride) 50 71 N 1 141 1.6 60-140 20 04/25/2023 1948 1,2-Dibromo-3-chloropropane (DBCP) 50 48 1 97 4.3 70-130 20 04/25/2023 1948 Dibromochloromethane 50 47 1 95 4.0 70-130 20 04/25/2023 1948 1,2-Dibromoethane (EDB) 50 49 1 98 3.0 70-130 20 04/25/2023 1948 Dibromomethane (Methylene bromide) 50 47 1 94 2.0 70-130 20 04/25/2023 1948 trans- 1,4-Dichloro-2-butene 50 43 1 86 6.2 70-130 20 04/25/2023 1948 1,2-Dichlorobenzene 50 48 1 97 2.6 70-130 20 04/25/2023 1948 1,4-Dichlorobenzene 50 47 1 93 0.88 70-130 20 04/25/2023 1948 1,1-Dichloroethane 50 47 1 94 0.78 70-130 20 04/25/2023 1948 1,2-Dichloroethane 50 47 1 94 0.51 70-130 20 04/25/2023 1948 1,1-Dichloroethene 50 51 1 102 1.7 70-130 20 04/25/2023 1948 cis- 1,2-Dichloroethene 50 49 1 97 0.87 70-130 20 04/25/2023 1948 trans- 1,2-Dichloroethene 50 48 1 96 0.11 70-130 20 04/25/2023 1948 1,2-Dichloropropane 50 47 1 94 1.8 70-130 20 04/25/2023 1948 cis- 1,3-Dichloropropene 50 51 1 102 3.6 70-130 20 04/25/2023 1948 trans- 1,3-Dichloropropene 50 52 1 103 0.71 70-130 20 04/25/2023 1948 Ethylbenzene 50 54 1 108 2.7 70-130 20 04/25/2023 1948 2-Hexanone 100 88 1 88 10 70-130 20 04/25/2023 1948 Methacrylonitrile 250 250 1 101 2.0 70-130 20 04/25/2023 1948 Methyl iodide (lodomethane) 50 49 1 97 5.4 70-130 20 04/25/2023 1948 4-Methyl-2-pentanone 100 99 1 99 8.1 70-130 20 04/25/2023 1948 Methylene chloride 50 55 1 110 5.4 70-130 20 04/25/2023 1948 Styrene 50 49 1 99 3.2 70-130 20 04/25/2023 1948 1,1,1,2-Tetrachloroethane 50 48 1 96 0.34 70-130 20 04/25/2023 1948 1,1,2,2-Tetrachloroethane 50 44 1 89 0.067 70-130 20 04/25/2023 1948 Tetrachloroethene 50 52 1 103 3.8 70-130 20 04/25/2023 1948 Toluene 50 52 1 104 1.7 70-130 20 04/25/2023 1948 1,1,1-Trichloroethane 50 48 1 96 1.2 70-130 20 04/25/2023 1948 1,1,2-Trichloroethane 50 46 1 92 2.4 70-130 20 04/25/2023 1948 Trichloroethene 50 51 1 102 0.95 70-130 20 04/25/2023 1948 Trichlorofluoromethane 50 63 1 127 2.6 70-130 20 04/25/2023 1948 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 194 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - LCSD Sample ID: YQ73639-003 Matrix: Aqueous Batch:73639 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec % RPD Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date 1,2,3-Trichloropropane 50 46 1 91 0.48 70-130 20 04/25/2023 1948 Vinyl acetate 50 47 1 94 1.6 60-140 20 04/25/2023 1948 Vinyl chloride 50 64 1 128 1.7 70-130 20 04/25/2023 1948 Xylenes (total) 100 110 1 110 3.1 70-130 20 04/25/2023 1948 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 108 70-130 1,2-Dichloroethane-d4 96 70-130 Toluene-d8 107 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 195 of 231 Volatile Organic Compounds by GC/MS (SIM) - MB Sample ID: YQ73764-001 Matrix: Aqueous Batch:73764 Prep Method: 5030E Analytical Method: 8260D (SIM) Parameter Result Q Dil LOQ DL Units Analysis Date 1,4-Dioxane ND 1 3.0 1.0 ug/L 04/26/2023 2019 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 119 40-170 ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 196 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS (SIM) - LCS Sample ID: YQ73764-002 Matrix: Aqueous Batch:73764 Prep Method: 5030E Analytical Method: 8260D (SIM) Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date 1,4-Dioxane 50 45 1 90 70-130 04/26/20231823 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 108 40-170 ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 197 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS (SIM) - LCSD Sample ID: YQ73764-003 Matrix: Aqueous Batch:73764 Prep Method: 5030E Analytical Method: 8260D (SIM) Spike Amount Result %Rec % RPD Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date 1,4-Dioxane 50 43 1 85 5.3 70-130 20 04/26/20231931 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 102 40-170 ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 198 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73765-001 Matrix: Aqueous Batch: 73765 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone ND 1 10 4.0 ug/L 04/26/2023 2307 Acrylonitrile ND 1 5.0 0.80 ug/L 04/26/2023 2307 Benzene ND 1 0.50 0.40 ug/L 04/26/2023 2307 Bromochloromethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 Bromodichloromethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 Bromoform ND 1 0.50 0.40 ug/L 04/26/2023 2307 Bromomethane (Methyl bromide) ND 1 0.50 0.40 ug/L 04/26/2023 2307 2-Butanone (MEK) ND 1 10 2.0 ug/L 04/26/2023 2307 Carbon disulfide ND 1 0.50 0.40 ug/L 04/26/2023 2307 Carbon tetrachloride ND 1 0.50 0.40 ug/L 04/26/2023 2307 Chlorobenzene ND 1 0.50 0.40 ug/L 04/26/2023 2307 Chloroethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 Chloroform ND 1 0.50 0.40 ug/L 04/26/2023 2307 Chloromethane (Methyl chloride) ND 1 0.50 0.40 ug/L 04/26/2023 2307 1,2-Dibromo-3-chloropropane (DBCP) ND 1 0.50 0.40 ug/L 04/26/2023 2307 Dibromochloromethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 1,2-Dibromoethane (EDB) ND 1 0.50 0.40 ug/L 04/26/2023 2307 Dibromomethane (Methylene bromide) ND 1 0.50 0.40 ug/L 04/26/2023 2307 trans- 1,4-Dichloro-2-butene ND 1 2.0 0.40 ug/L 04/26/2023 2307 1,2-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/26/2023 2307 1,4-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/26/2023 2307 1,1-Dichloroethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 1,2-Dichloroethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 1,1-Dichloroethene ND 1 0.50 0.40 ug/L 04/26/2023 2307 cis- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/26/2023 2307 trans- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/26/2023 2307 1,2-Dichloropropane ND 1 0.50 0.40 ug/L 04/26/2023 2307 cis- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/26/2023 2307 trans- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/26/2023 2307 Ethylbenzene ND 1 0.50 0.40 ug/L 04/26/2023 2307 2-Hexanone ND 1 10 2.0 ug/L 04/26/2023 2307 Methacrylonitrile ND 1 5.0 2.0 ug/L 04/26/2023 2307 Methyl iodide (lodomethane) ND 1 5.0 0.40 ug/L 04/26/2023 2307 4-Methyl-2-pentanone ND 1 10 2.0 ug/L 04/26/2023 2307 Methylene chloride ND 1 0.50 0.40 ug/L 04/26/2023 2307 Styrene ND 1 0.50 0.41 ug/L 04/26/2023 2307 1,1,1,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 1,1,2,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 Tetrachloroethene ND 1 0.50 0.40 ug/L 04/26/2023 2307 Toluene ND 1 0.50 0.40 ug/L 04/26/2023 2307 1,1,1-Trichloroethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 1,1,2-Trichloroethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 Trichloroethene ND 1 0.50 0.40 ug/L 04/26/2023 2307 Trichlorofluoromethane ND 1 0.50 0.40 ug/L 04/26/2023 2307 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 199 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73765-001 Matrix: Aqueous Batch:73765 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date 1,2,3-Trichloropropane ND 1 0.50 0.40 ug/L 04/26/2023 2307 Vinyl acetate ND 1 5.0 1.2 ug/L 04/26/2023 2307 Vinyl chloride ND 1 0.50 0.40 ug/L 04/26/2023 2307 Xylenes (total) ND 1 1.0 0.40 ug/L 04/26/2023 2307 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 85 70-130 1,2-Dichloroethane-d4 107 70-130 Toluene-d8 99 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 200 of 231 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73765-002 Matrix: Aqueous Batch: 73765 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 100 1 102 60-140 04/26/2023 2137 Acrylonitrile 100 94 1 94 70-130 04/26/2023 2137 Benzene 50 49 1 99 70-130 04/26/2023 2137 Bromochloromethane 50 47 1 94 70-130 04/26/2023 2137 Bromodichloromethane 50 47 1 93 70-130 04/26/2023 2137 Bromoform 50 45 1 90 70-130 04/26/2023 2137 Bromomethane (Methyl bromide) 50 59 1 118 70-130 04/26/2023 2137 2-Butanone (MEK) 100 100 1 101 70-130 04/26/2023 2137 Carbon disulfide 50 47 1 95 70-130 04/26/2023 2137 Carbon tetrachloride 50 49 1 98 70-130 04/26/2023 2137 Chlorobenzene 50 48 1 96 70-130 04/26/2023 2137 Chloroethane 50 57 1 115 70-130 04/26/2023 2137 Chloroform 50 49 1 98 70-130 04/26/2023 2137 Chloromethane (Methyl chloride) 50 73 N 1 145 60-140 04/26/2023 2137 1,2-Dibromo-3-chloropropane (DBCP) 50 45 1 91 70-130 04/26/2023 2137 Dibromochloromethane 50 47 1 93 70-130 04/26/2023 2137 1,2-Dibromoethane (EDB) 50 49 1 98 70-130 04/26/2023 2137 Dibromomethane (Methylene bromide) 50 48 1 96 70-130 04/26/2023 2137 trans- 1,4-Dichloro-2-butene 50 37 1 74 70-130 04/26/2023 2137 1,2-Dichlorobenzene 50 47 1 94 70-130 04/26/2023 2137 1,4-Dichlorobenzene 50 47 1 93 70-130 04/26/2023 2137 1,1-Dichloroethane 50 46 1 93 70-130 04/26/2023 2137 1,2-Dichloroethane 50 47 1 94 70-130 04/26/2023 2137 1,1-Dichloroethene 50 50 1 100 70-130 04/26/2023 2137 cis- 1,2-Dichloroethene 50 47 1 94 70-130 04/26/2023 2137 trans- 1,2-Dichloroethene 50 48 1 95 70-130 04/26/2023 2137 1,2-Dichloropropane 50 49 1 98 70-130 04/26/2023 2137 cis- 1,3-Dichloropropene 50 51 1 102 70-130 04/26/2023 2137 trans- 1,3-Dichloropropene 50 50 1 99 70-130 04/26/2023 2137 Ethylbenzene 50 54 1 109 70-130 04/26/2023 2137 2-Hexanone 100 97 1 97 70-130 04/26/2023 2137 Methacrylonitrile 250 250 1 101 70-130 04/26/2023 2137 Methyl iodide (lodomethane) 50 46 1 92 70-130 04/26/2023 2137 4-Methyl-2-pentanone 100 110 1 105 70-130 04/26/2023 2137 Methylene chloride 50 51 1 102 70-130 04/26/2023 2137 Styrene 50 50 1 100 70-130 04/26/2023 2137 1,1,1,2-Tetrachloroethane 50 47 1 95 70-130 04/26/2023 2137 1,1,2,2-Tetrachloroethane 50 45 1 90 70-130 04/26/2023 2137 Tetrachloroethene 50 51 1 103 70-130 04/26/2023 2137 Toluene 50 52 1 103 70-130 04/26/2023 2137 1,1,1-Trichloroethane 50 48 1 95 70-130 04/26/2023 2137 1,1,2-Trichloroethane 50 47 1 94 70-130 04/26/2023 2137 Trichloroethene 50 51 1 102 70-130 04/26/2023 2137 Trichlorofluoromethane 50 61 1 122 70-130 04/26/2023 2137 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 201 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73765-002 Matrix: Aqueous Batch:73765 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date 1,2,3-Trichloropropane 50 46 1 92 70-130 04/26/2023 2137 Vinyl acetate 50 46 1 92 60-140 04/26/2023 2137 Vinyl chloride 50 64 1 128 70-130 04/26/2023 2137 Xylenes (total) 100 110 1 109 70-130 04/26/2023 2137 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 104 70-130 1,2-Dichloroethane-d4 92 70-130 Toluene-d8 101 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD19013 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 202 of 231 Volatile Organic Compounds by GC/MS (SIM) - MB Sample ID: YQ73956-001 Matrix: Aqueous Batch:73956 Prep Method: 5030E Analytical Method: 8260D (SIM) Parameter Result Q Dil LOQ DL Units Analysis Date 1,4-Dioxane ND 1 3.0 1.0 ug/L 04/28/20231102 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 98 40-170 ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 203 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS (SIM) - LCS Sample ID: YQ73956-002 Matrix: Aqueous Batch:73956 Prep Method: 5030E Analytical Method: 8260D (SIM) Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date 1,4-Dioxane 50 55 1 109 70-130 04/28/2023 0959 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 98 40-170 ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 204 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS (SIM) - MB Sample ID: YQ75361-001 Matrix: Aqueous Batch:75361 Prep Method: 5030E Analytical Method: 8260D (SIM) Parameter Result Q Dil LOQ DL Units Analysis Date 1,4-Dioxane ND 1 3.0 1.0 ug/L 05/16/20231054 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 98 40-170 ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 205 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS (SIM) - LCS Sample ID: YQ75361-002 Matrix: Aqueous Batch:75361 Prep Method: 5030E Analytical Method: 8260D (SIM) Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date 1,4-Dioxane 50 44 1 88 70-130 05/16/2023 0942 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 102 40-170 ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 206 of 231 QC Data for Lot Number: YD19013 Volatile Organic Compounds by GC/MS (SIM) - LCSD Sample ID: YQ75361-003 Matrix: Aqueous Batch:75361 Prep Method: 5030E Analytical Method: 8260D (SIM) Spike Amount Result %Rec % RPD Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date 1,4-Dioxane 50 49 1 99 12 70-130 20 05/16/20231006 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 101 40-170 ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 207 of 231 QC Data for Lot Number: YD19013 Dissolved Gases - MB Sample ID: YQ73994-001 Matrix: Aqueous Batch: 73994 Analytical Method: RSK - 175 Parameter Result Q Dil LOQ DL Units Analysis Date Ethane ND 1 10 2.5 ug/L 04/28/20231555 Ethene ND 1 10 2.5 ug/L 04/28/20231555 Methane 4.4 J 1 10 2.5 ug/L 04/28/20231555 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 208 of 231 QC Data for Lot Number: YD19013 Dissolved Gases - LCS Sample ID: YQ73994-002 Matrix: Aqueous Batch: 73994 Analytical Method: RSK - 175 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Ethane 550 400 1 72 70-130 04/28/20231252 Ethene 520 370 1 72 70-130 04/28/20231252 Methane 300 210 1 70 70-130 04/28/20231252 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 209 of 231 QC Data for Lot Number: YD19013 Dissolved Gases - LCSD Sample ID: YQ73994-003 Matrix: Aqueous Batch: 73994 Analytical Method: RSK - 175 Spike Amount Result %Rec % RPD Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Ethane 550 410 1 73 1.5 70-130 30 04/28/20231311 Ethene 520 380 1 73 1.4 70-130 30 04/28/20231311 Methane 300 210 1 71 1.2 70-130 30 04/28/20231311 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 210 of 231 QC Data for Lot Number: YD19013 Dissolved Gases - MB Sample ID: YQ74385-001 Matrix: Aqueous Batch: 74385 Analytical Method: RSK - 175 Parameter Result Q Dil LOQ DL Units Analysis Date Methane 2.9 J 1 10 2.5 ug/L 05/03/20231132 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 211 of 231 QC Data for Lot Number: YD19013 Dissolved Gases - LCS Sample ID: YQ74385-002 Matrix: Aqueous Batch: 74385 Analytical Method: RSK - 175 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Methane 300 280 1 95 70-130 05/03/20231038 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 212 of 231 QC Data for Lot Number: YD19013 ICP-MS Metals - MB Sample ID: YQ73233-001 Matrix: Aqueous Batch: 73233 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/23/2023 1915 Parameter Result Q Dil LOQ DL Units Analysis Date Antimony ND 1 2.0 0.50 ug/L 04/25/2023 0326 Arsenic ND 1 2.0 1.3 ug/L 04/25/2023 0326 Barium ND 1 5.0 1.3 ug/L 04/25/2023 0326 Beryllium ND 1 0.40 0.15 ug/L 04/28/2023 0741 Cadmium ND 1 0.50 0.13 ug/L 04/25/2023 0326 Chromium ND 1 5.0 1.3 ug/L 04/25/2023 0326 Cobalt ND 1 5.0 1.3 ug/L 04/28/2023 0741 Copper ND 1 5.0 1.3 ug/L 04/28/2023 0741 Lead ND 1 1.0 0.25 ug/L 04/25/2023 0326 Nickel ND 1 5.0 1.3 ug/L 04/25/2023 0326 Selenium ND 1 5.0 1.3 ug/L 04/25/2023 0326 Silver ND 1 1.0 0.25 ug/L 04/25/2023 0326 Thallium ND 1 0.50 0.15 ug/L 04/25/2023 0326 Vanadium ND 1 5.0 2.5 ug/L 04/25/2023 0326 Zinc ND 1 10 2.5 ug/L 04/25/2023 0326 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 213 of 231 QC Data for Lot Number: YD19013 ICP-MS Metals - LCS Sample ID: YQ73233-002 Matrix: Aqueous Batch: 73233 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/23/2023 1915 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 100 96 1 96 80-120 04/25/2023 0338 Arsenic 100 98 1 98 80-120 04/25/2023 0338 Barium 100 98 1 98 80-120 04/25/2023 0338 Beryllium 100 94 1 94 80-120 04/28/2023 0753 Cadmium 100 100 1 104 80-120 04/25/2023 0338 Chromium 100 110 1 112 80-120 04/25/2023 0338 Cobalt 100 120 1 117 80-120 04/28/2023 0753 Copper 100 110 1 114 80-120 04/28/2023 0753 Lead 100 100 1 103 80-120 04/25/2023 0338 Nickel 100 110 1 112 80-120 04/25/2023 0338 Selenium 100 86 1 86 80-120 04/25/2023 0338 Silver 100 110 1 106 80-120 04/25/2023 0338 Thallium 100 95 1 95 80-120 04/25/2023 0338 Vanadium 100 100 1 102 80-120 04/25/2023 0338 Zinc 100 97 1 97 80-120 04/25/2023 0338 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 214 of 231 QC Data for Lot Number: YD19013 ICP-MS Metals - MS Sample ID: YD19013-001 MS Matrix: Aqueous Batch: 73233 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/23/2023 1915 Sample Spike Amount Amount Result %Rec Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony ND 100 100 1 100 75-125 04/25/2023 0458 Arsenic ND 100 100 1 104 75-125 04/25/2023 0458 Barium 130 100 230 1 100 75-125 04/25/2023 0458 Beryllium ND 100 95 1 95 75-125 04/25/2023 0458 Cadmium ND 100 100 1 101 75-125 04/25/2023 0458 Chromium 3.3 100 110 1 107 75-125 04/25/2023 0458 Cobalt ND 100 110 1 110 75-125 04/25/2023 0458 Copper 1.4 100 99 1 98 75-125 04/28/2023 0850 Lead 0.44 100 100 1 104 75-125 04/25/2023 0458 Nickel 8.2 100 110 1 99 75-125 04/25/2023 0458 Selenium ND 100 89 1 89 75-125 04/25/2023 0458 Silver ND 100 92 1 92 75-125 04/25/2023 0458 Thallium ND 100 95 1 95 75-125 04/25/2023 0458 Vanadium ND 100 100 1 103 75-125 04/25/2023 0458 Zinc ND 100 99 1 99 75-125 04/25/2023 0458 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 215 of 231 QC Data for Lot Number: YD19013 ICP-MS Metals - MSD Sample ID: YD19013-001 MD Matrix: Aqueous Batch: 73233 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/23/2023 1915 Sample Spike Amount Amount Result %Rec % RPD Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Antimony ND 100 100 1 101 1.6 75-125 20 04/25/2023 0509 Arsenic ND 100 100 1 104 0.60 75-125 20 04/25/2023 0509 Barium 130 100 240 1 103 1.5 75-125 20 04/25/2023 0509 Beryllium ND 100 96 1 96 1.7 75-125 20 04/25/2023 0509 Cadmium ND 100 100 1 103 2.3 75-125 20 04/25/2023 0509 Chromium 3.3 100 110 1 107 0.38 75-125 20 04/25/2023 0509 Cobalt ND 100 110 1 109 0.91 75-125 20 04/25/2023 0509 Copper 1.4 100 100 1 98 0.22 75-125 20 04/28/2023 0901 Lead 0.44 100 110 1 105 0.80 75-125 20 04/25/2023 0509 Nickel 8.2 100 110 1 98 1.3 75-125 20 04/25/2023 0509 Selenium ND 100 92 1 92 3.1 75-125 20 04/25/2023 0509 Silver ND 100 91 1 91 0.53 75-125 20 04/25/2023 0509 Thallium ND 100 94 1 94 0.51 75-125 20 04/25/2023 0509 Vanadium ND 100 100 1 104 0.49 75-125 20 04/25/2023 0509 Zinc ND 100 98 1 98 0.64 75-125 20 04/25/2023 0509 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 216 of 231 QC Data for Lot Number: YD19013 ICP-MS Metals - MB Sample ID: YQ73235-001 Matrix: Aqueous Batch: 73235 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/23/2023 1915 Parameter Result Q Dil LOQ DL Units Analysis Date Antimony ND 1 2.0 0.50 ug/L 04/28/20231947 Arsenic ND 1 2.0 1.3 ug/L 04/28/20231947 Barium ND 1 5.0 1.3 ug/L 04/28/20231947 Beryllium ND 1 0.40 0.15 ug/L 04/28/20231947 Cadmium ND 1 0.50 0.13 ug/L 04/28/20231947 Chromium ND 1 5.0 1.3 ug/L 04/28/20231947 Cobalt ND 1 5.0 1.3 ug/L 04/28/20231947 Copper ND 1 5.0 1.3 ug/L 04/28/20231947 Lead ND 1 1.0 0.25 ug/L 04/28/20231947 Nickel ND 1 5.0 1.3 ug/L 04/28/20231947 Selenium ND 1 5.0 1.3 ug/L 04/28/20231947 Silver ND 1 1.0 0.25 ug/L 04/28/20231947 Thallium ND 1 0.50 0.15 ug/L 04/28/20231947 Vanadium ND 1 5.0 2.5 ug/L 04/28/20231947 Zinc ND 1 10 2.5 ug/L 04/28/20231947 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 217 of 231 QC Data for Lot Number: YD19013 ICP-MS Metals - LCS Sample ID: YQ73235-002 Matrix: Aqueous Batch: 73235 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/23/2023 1915 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 100 100 1 101 80-120 04/28/20231959 Arsenic 100 100 1 102 80-120 04/28/20231959 Barium 100 100 1 103 80-120 04/28/20231959 Beryllium 100 98 1 98 80-120 04/28/20231959 Cadmium 100 110 1 106 80-120 04/28/20231959 Chromium 100 110 1 111 80-120 04/28/20231959 Cobalt 100 120 1 117 80-120 04/28/20231959 Copper 100 110 1 112 80-120 04/28/20231959 Lead 100 110 1 110 80-120 04/28/20231959 Nickel 100 110 1 112 80-120 04/28/20231959 Selenium 100 91 1 91 80-120 04/28/20231959 Silver 100 110 1 112 80-120 04/28/20231959 Thallium 100 110 1 108 80-120 04/28/20231959 Vanadium 100 100 1 105 80-120 04/28/20231959 Zinc 100 100 1 104 80-120 04/28/20231959 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 218 of 231 QC Data for Lot Number: YD19013 ICP-MS Metals - MS Sample ID: YD19013-017MS Matrix: Aqueous Batch: 73235 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/23/2023 1915 Sample Spike Amount Amount Result %Rec Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony ND 100 100 1 105 75-125 04/28/2023 2142 Arsenic 2.8 100 110 1 105 75-125 04/28/2023 2142 Barium 2400 100 2600 N 20 197 75-125 05/01/20231506 Beryllium 0.32 100 110 1 107 75-125 04/28/2023 2142 Cadmium 0.24 100 110 1 105 75-125 04/28/2023 2142 Chromium ND 100 110 1 110 75-125 04/28/2023 2142 Cobalt 35 100 140 1 107 75-125 04/28/2023 2142 Copper 3.5 100 110 1 104 75-125 04/28/2023 2142 Lead 37 100 140 1 104 75-125 04/28/2023 2142 Nickel 17 100 120 1 104 75-125 04/28/2023 2142 Selenium ND 100 97 1 97 75-125 04/28/2023 2142 Silver ND 100 100 1 104 75-125 04/28/2023 2142 Thallium ND 100 100 1 103 75-125 04/28/2023 2142 Vanadium ND 100 110 1 111 75-125 04/28/2023 2142 Zinc 11 100 110 1 97 75-125 04/28/2023 2142 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 219 of 231 QC Data for Lot Number: YD19013 ICP-MS Metals - MSD Sample ID: YD19013-017MD Matrix: Aqueous Batch: 73235 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/23/2023 1915 Sample Spike Amount Amount Result %Rec % RPD Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Antimony ND 100 110 1 109 3.3 75-125 20 04/28/2023 2153 Arsenic 2.8 100 110 1 105 0.18 75-125 20 04/28/2023 2153 Barium 2400 100 2600 N 20 150 1.8 75-125 20 05/01/20231518 Beryllium 0.32 100 110 1 108 0.93 75-125 20 04/28/2023 2153 Cadmium 0.24 100 110 1 108 2.4 75-125 20 04/28/2023 2153 Chromium ND 100 110 1 113 2.0 75-125 20 04/28/2023 2153 Cobalt 35 100 140 1 109 1.4 75-125 20 04/28/2023 2153 Copper 3.5 100 110 1 107 2.5 75-125 20 04/28/2023 2153 Lead 37 100 140 1 108 2.4 75-125 20 04/28/2023 2153 Nickel 17 100 120 1 106 2.1 75-125 20 04/28/2023 2153 Selenium ND 100 97 1 97 0.55 75-125 20 04/28/2023 2153 Silver ND 100 100 1 104 0.068 75-125 20 04/28/2023 2153 Thallium ND 100 100 1 104 0.77 75-125 20 04/28/2023 2153 Vanadium ND 100 110 1 114 2.6 75-125 20 04/28/2023 2153 Zinc 11 100 110 1 99 1.7 75-125 20 04/28/2023 2153 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 220 of 231 QC Data for Lot Number: YD19013 ICP-MS Metals - MB Sample ID: YQ73746-001 Matrix: Aqueous Batch: 73746 Prep Method: 3005A Analytical Method: 6020B Prep Date: 05/02/2023 0400 Parameter Result Q Dil LOQ DL Units Analysis Date Antimony ND 1 2.0 0.50 ug/L 05/02/20231159 Arsenic ND 1 2.0 1.3 ug/L 05/02/20231159 Barium ND 1 5.0 1.3 ug/L 05/02/20231159 Beryllium ND 1 0.40 0.15 ug/L 05/02/20231159 Cadmium ND 1 0.50 0.13 ug/L 05/02/20231159 Chromium ND 1 5.0 1.3 ug/L 05/02/20231159 Cobalt ND 1 5.0 1.3 ug/L 05/02/20231159 Copper ND 1 5.0 1.3 ug/L 05/02/20231159 Lead ND 1 1.0 0.25 ug/L 05/02/20231159 Nickel ND 1 5.0 1.3 ug/L 05/02/20231159 Selenium ND 1 5.0 1.3 ug/L 05/02/20231159 Silver ND 1 1.0 0.25 ug/L 05/02/20231159 Thallium ND 1 0.50 0.15 ug/L 05/02/20231159 Vanadium ND 1 5.0 2.5 ug/L 05/02/20231159 Zinc ND 1 10 2.5 ug/L 05/02/20231159 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 221 of 231 QC Data for Lot Number: YD19013 ICP-MS Metals - LCS Sample ID: YQ73746-002 Matrix: Aqueous Batch: 73746 Prep Method: 3005A Analytical Method: 6020B Prep Date: 05/02/2023 0400 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 100 93 1 93 80-120 05/02/20231210 Arsenic 100 98 1 98 80-120 05/02/20231210 Barium 100 99 1 99 80-120 05/02/20231210 Beryllium 100 99 1 99 80-120 05/02/20231210 Cadmium 100 94 1 94 80-120 05/02/20231210 Chromium 100 100 1 103 80-120 05/02/20231210 Cobalt 100 100 1 105 80-120 05/02/20231210 Copper 100 110 1 107 80-120 05/02/20231210 Lead 100 100 1 101 80-120 05/02/20231210 Nickel 100 110 1 106 80-120 05/02/20231210 Selenium 100 89 1 89 80-120 05/02/20231210 Silver 100 99 1 99 80-120 05/02/20231210 Thallium 100 100 1 100 80-120 05/02/20231210 Vanadium 100 100 1 100 80-120 05/02/20231210 Zinc 100 96 1 96 80-120 05/02/20231210 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 222 of 231 QC Data for Lot Number: YD19013 Chain of Custody and Miscellaneous Documents Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 223 of 231 PACE ANALYTICAL SERVICES, LLC I� T fa- q a 7j4 nr sTw� 4— E CO 1 � I it o 4 t a a ER ' J r S t < Y It l ai I ' Ld rl s�na,uv m V 7 vKt wrJ } et n I C 0. rrfi' +,y' Cri d% ag t} Z ] ti �i N R V i i 4R �� l i�5 h h LE ti Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 224 of 231 PACE ANALYTICAL SERVICES, LLC I L .Y� rn q . u t r 4� d C l LU ,L Ec ILL M J I +-owl Lj CL ILI a r v f r I --. Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 225 of 231 PACE ANALYTICAL SERVICES, LLC CY r � r J S31 LU O w u .r R LU r~ FT Ld O oAL R 5� u `JV pp sg� �i Imo' L� ' kh'iP9� rxi 02w �� A 74 Q[j f �-I G ' ❑ 4 R f 4 U iJ x S a L: � r C L � { J � A } { d- Jq 1. `K C 1+ Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 226 of 231 PACE ANALYTICAL SERVICES, LLC DC# Ttla: ENV-FRM-WCOL-0286VDi'—SemPlasRoceiptCherkllSt�SRCI EfFective• Data, 81212022 C`.timu: CDM51r_irb Cooler lnspL:r'xrdIN;4Isle.. KEIRW j M151+'rL2:' Lot A: 14013 ) 1�$r15 laEC4llli: Page Clicrrt. UPS f l c Ex O[lier, -- e51r+tiy.qeais resegLt LIU the cooler': YCS N�1 i, if Cll3tOC1 swils were 'ESellt, krocre ill 'intact and UL1131VIDMO ali Stfip ID: 22 7593 L,lllom; St p ID., _ Tested ley:Bm original (emperntui, uvu i mcnivi. i Deriveii (ConvCtcd) toup-traftue upon lmeip' %Hd S11*0ip M, `{A 2.9 f23 nQ .3.7 ,3.7 0C 3.3 r3.3 vC d8 }VA a0 1ykalud: QTivuipt i'alure BIQA 15L $❑ltlts IR Gnn YD: IR Gym C oil'Ectiam Factor; D c(' icttfad ofcoolaar. ' w t ice I 1 ice Packs ❑ I7i tee Nair WIYCI ❑ NORNAA I Werc .`,ll cuakilt i4:LxLvv o t nr belnvi b.0')C`.{ If m, was hoj cc' 11 uime1 notar.11 cci^ Pia j"s Norifled by, [Ak-ne i iviail f lbtc-to-Pate (cirelc onc)_ +{ YCi No , L tit ci�ilL'i mial co;iritr% p3[I,711G 311]) atta cltc[l io 11is EOIUI? YCs 'NoS. Werre iol)f!rcLl5tadyplUCe[lluCS(LV.EDgtlitiie--Urc�4-ivntl) t'J1kRVC0d �L-es ;06. S Oar. SitUl 11: IDS 1Ested on the COC and at1E Si111111le contaiucr&3 7, was cialleetiau tiatt & thue listed oil LILC COS' . d ail: sample willahwit- 'CS Yes No R. Did a1L cosuaniei' IaLbrl lidtofmailan (Yt?_ &L'lfe, tkilr) awe Nvidl tlrc Yes No �. Were tests to be perfumcd listed oil ,lie C-0C? ❑ CS Will 10. Did 811 sxapie5 ai ive in the proper L uek'aloefS & r each tc St imdi-Of ir` 7 -.Pod I CmikdiLiLm (iinb okc1L lids; OIL If Yes NO 1 L• W&& acleq"*- SaiWk volume milableT Yes No 12_ Weie alt sitLupL iriz& cd widd.1i % the boddioi tine or 4811OUS, %Vhi61ZVa CMILUV: i'rrWr Ayes NO B. W= al samples containers accowcd foc? (to UlassigdtxteSf') QYes [Na �NRdianirlrr)iusir 1 . Vdefe VUA, SUM turd RSK-17 5 S0111 ] es fTe�e of bliih lt5 >`pex AZe` ('/,"r,r G1 iLil iU of T1hc VOA vials? 15. Wcrc all DR 1,'=Lahhaaltr'ient sa ffip]CS r=ivied at a H of < 2? Yes o A Yes No 16. Were all cy-auidc s ks rereii'oi1 at a I 1 � 1� rllid sulfide snUlples rrL ci,r�ed 3t a pH } 9 � ❑yea ❑ I+% ��LYi . Were all appli,aille NH} KNIcyanidrllrl;eil +' 5,11tS08.3 •' _ m +L} 5ssu1}l s lice cf fC51{L1lEl cI1lOrIi1C�' [] l'�t3 # 18. Was thr- 11I10tr 11111T1hL-r li:itCd on die coliMiaef lazbel'? If rt. QWtd MOS6 161111111e PIY'SC}itli0]C (I1+147sCt colllpl�ektd40. 3i1]*5`1+�3r 111conrtly pl'CSa'e[i{rCV�'it}ilYtrfld3]}[iCG,) Stllliple(S) NAL LF21e f ftsl t:{I li]ciurn ?[ +}Icsr'V d n[idvLrcrr idjLmed accar F] y ni ymLLIAu li7r=C11 jug witll ' rl L of;i elt one: MS01- U903. HC'L. N atl [ fining SR I, TEA rhug, 4f l?1' Sex dticrp rA 1C nLUM tlPM 011C [lrCSCFVafiVC .5 ntedc ,1�LithS� note in the catlullCiYtS below. ti:Inilllcf l KA biLbUes -6 mai in diameter. awlali s(sj ""A werc receiver[ uiirll TK. > 0.5 iug,L Of#19 i try) and wem 1djMttd accoidi4y in smilple rmeivl lg with soditun thimili~Ite (NS2S203) Will) Uniqut ID' `!A _ CU1Lll11CJ1LS= 1.1WJ -,s I+'_%'-X I 1 :. rt,il etCs -k cd brokcrl:c 1 both of ditsc sanLPlcs Qualtrax ID; 563613 Pace" Aria[V ical Services, LLC Pogo 1 of Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 227 of 231 PACE ANALYTICAL SERVICES, LLC Lr L Ja E qv- R w r-r w b- + I > C. CJ] a A c E _ LU u.. 1' y k33 Q ct I %tl �L% CD -IN 4j 9!4]•�J J 1] 4.f U j V c>_ 7F F? 6•h r' rr• '"" ted 17 I v T z i J a F a is s 4 Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 228 of 231 PACE ANALYTICAL SERVICES, LLC M(* Title: i;-NV-FRM-VVCUL 0285 vD2`Samp14S Fie-eipt Cfte&kt (5RC7 Eifectwe Date: s/2I2022 a r ple, RvvAApl; C h ee. ilst (SRC) Cl4eilt' CDM fiP iZIH CLILI I:isprc cd T +}" _ YD 01):3 -Means of rcccipr: Pace 0inu UPS W PMEX Ea LNI) 1. 'L2'C C21SC 5 .91$ i estnt Oil dic iDulei? WlYej I INOIJNA 2_ Ifcustc►tl :gals w-,-rc 2Se . were t •ialact and wd;e(u{ v 1 C Strip T1- 2-�-593 _ CMULiUr SLiili rD: _ Tl:stcd by, L{L+F.w O Ll llj8l teti]p�.fatUre upon rcccll]f 1 UeLi-,�etl (Cb-itC7bi) teli]p�fahu lll}blY reeCilrt S,, , �JIWI ilp ID:1%.A +2.7 cC 4.2 r d_2 oc NA r Val cc NA iNA vc NfutLiod: Z Fv inperHitu r. Blmsk F- i rLst Bo LTjes E Gtui rD: iK Uiw lroi wLiaii Facior. °C Method of coolant: 7 WM tee Q let PA, fily Icr Nc w ❑Vic` ❑ '` .i. Were all cocdors meiVedalarbdow 6VIC? Ifbo_ i�LS'_ OjectNo 1�Isrna���i1(�li6cxlk I,1`� TJ+, l2L3 a4#lwd by; plioil J h ail; far #n-faEr t"c x3t ai;�), 2es No NA d i7 the tS1i1a11gCtFd c Lri s}mkin slip amched to tis f4jTO Yes F1 Na v ei }�ixiprl` cLrstp }' ]ioctxlLues {i11i.�1rini f ad,i e2t�cx1) follov�ecl? ,/ lYn No 5, Were safnplL- Ins listed on 111C COry alld all D�Fmlplc tofltaincr4? ,/' yis Z v 7_ Was eoilec-ti(w date & iFme li 4tL-d -}t ilia 0EU14 oil Effiwic t=taillm? We Yes No 8. Did aU -;onlaluer Iabel irfannatim ijD, date, [inic) agree wide EI c COC? W Yes 1 ND 9" were [arts En be Va'Ew-Mcd jim-d oil llle Cam') 10. Did all winples atnive in the proper ❑onminees Rir e8 a icst an&m ill good condition (tulle a1 rn, lids 00, etc.}? rK No 11_ �Glis zdeL�iiLte wityllc vollum availabk? I iol2. Were �L l miui,LICS receiwd wltUi i!� tTr- IwIdiai tiaLr- aw 48 lioL:u �vbjL:1Le vLi L"lleg firs [o zVe5 [:]No, 13. WMe all SMIL]i M MIt8jUel'S JLL:COUntrd f-Zl'? JNO iili55L iFfC�CCSS� G No 14_ �i M VOA. E015C e id 7 SK-175 np cs free of bubbles >-pca-size" (vi-ox 6niui in 1'.�+_ �ei'e ill 1]R d'1jjCt}71sJutlulCili S'.7i recaty data phC-f< 2? vf Y5 TqO .bi s Iklo I A- 16. Neff; A C UlJdc SkliuplcS rCUivW ilt a H 7 12 md-milfi&sanples rrcri rd at R 7R > 9? 1 !, ere-9pp(1Ca e � Hjf1 I�IICr:lllif 1} iFYi{11a+ i? _1JoUli,3 ( 0, $iu�+il } Samples trze of �TkO [Z]NA � TCS]llLi81 ch Iofiite`. �Ycs � n 1S, -Was ,lie qua-'e �Itullbel ii}ted on tk €ont:,i ief labol" TFycs, quote 5 ample 1pruiervalia II (Mus! be coiulpleted for ally 111ccla dy prescri" of xi[ll lLc�td��iaCe.) wc1r ruccived ineorlectlyprumcd.-lad wear, adjListed ;tcccdi[l� y in 11iL of circle one; H2SO4,_ ILY 03,11C1. MOH using SR Y - irue of jKi!S V tiM _ If mote 111011 {qlC PrescrFative ir, ncedcd, please iwiC ill d I i zgiwuetus Mow. Swli fr(s) s ?,nV-A `were 1reCENCd MLh bubbles --15 mui ilL diaireux. argks(s) viler, wdlt'fRC > 0.5 1Z15rT. (If#19 is no) end x'el adjmted aoear{li ills saniglle feceiyfiLg willt .wdilffll t171D%jdNie (?Jl 11S,OiN. {Vltll Uuiclue W- NA cowil nt5; tla7{ ED: 55 60 ac ° Andlylical 5erA=,, LLC Paj§e I of 1 Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 229 of 231 PACE ANALYTICAL SERVICES, LLC U V d. I �r ;,olk j y.r'11a55; ,1 AA rgy�sces i P L�2 ,' ti 3M V U UN Q, � I l 1 r7 N z o- 6 Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 230 of 231 PACE ANALYTICAL SERVICES, LLC DC#_Titlo: INV-FRM-LV�17t.•0286 kd)2_Saln�lae Re'oeipt Cheekllst (SRC, E ffec;ivv Data-, 3/2 j2022 Sample receipt Checklist (SRQ Cl:rttt: (:I)mSouih Coat& isspcctl;A b7+ lte: 1SDICR' r at,�:�aax� Lot TM: Y1719UI3 II W=OfFfi— I: I I Pule j lChow I I JPS WT FedF Allier � 'Yet A;o i- Were c�r�,-r,d}'�e411s grescut oAthy c.�ore:? ytn N4 N+A 2- Tt: cJ"-T Y Sta15'ATFC CS=t. Wtar. t',oy inlaet and tiabl-olt,zilh H >'tRp LO: ""-""' C'liloiivc St-1p ID: P1A Fry Iced by Kwf-r ._ [hipilill--illpera'T&L lipoid YeC�pf r Dtaived (C0rce0e() ieMFCE!Anmc upon lwelpr 9'oSoL•d S vap- iip ID, A, �NAl cc INA r[xAs aC, PTA INA PoGcitliod; iev,peratrtre>3l, r1l4�1�g�li�esf Sotrlesl�TRf. Giut lD! lid CnnC)M'eerio><t I'e,ctor � `C �llb4.� a fiQQl£Il,l 71 wet Tre I I FCC Nai 1 I lDnr ��c II hJn n a zYc'i ❑1q. ON -A 3. %Verc All iv,ale SCc ciire d a or bc�crT .r,-0'C ? IF [ilF, LuNh FI'8]CCt -'01917.ti EV n0rEfi ed7 13A wAs NctL'1&d by: (circle un n). V'I VCS1 LIN61IN TA 4. is the Lwauvnui'ld c miner's packkg slip artlncF.ed to 115is Yes 4 .a)t111'! S. Weit:1muper ciWnely prozztdure :aquislwd1rcacivt{i) fv[tm'ad^ Ayftl ND S. Wert 9e C T.D's listed all the OW aild all s-.c comtmi¢ers? 11-e5. Ttiu 7- Vtts vlleeri�tEtLlte A tinla G.ed Enri gir C m0 alt E21wrlc rou7ailias? r/ Yvtr No �, DA all vmaahier lat el r0.{oluial3oR U0. da#e, tF mtj a hrte Xith the COC'� 9, Were k-.ts to k 1lerfainled litle,tl 41i the C'DC7 yc NO ❑ Y n; © N. -0- Did all € nl *s m-Ai c in 111e }+roj:Cr C01M i Ile I s F5,r �rxh lest aeadr'or ill goad coaditian (un4)k= lids m, etc-}? 11. Was atdcgU itr 6.Mlp)e %r�lurne uvoiluLle-? 1Fes his t/ Y No 12, fee all srtn,plos ieCeicrd wiiiLn :4 1F a hMdir±g time or 43 hours. whicha cr wouie4 :.i1,_ 10 C� Yes NO 13- T" P-tr all 68n7111:er contsiu US aceponlyd Au" (NO 1t1168ii1g+rt5%tE5s) 121 "e ❑ Nb !Veae VOA, $1$ a� d RSI 1:�5 sanup;es £ ee of bttbles >"per�ise" ("1,"fir Glnu, i , diauwler) in PtT} oftAe VOL4-liajs: Y'cs Mo NA 15. Were all DRC Vmcfa.1311n tL!- ,1 san, lex raceived al a Z! of '?? yCS I8 NA H- S'lcra aT! Cv<'Friide snruNCT-m-ceived at a pT-r> 12 aad ;uSidv sm11 ties reoeiwd st o pFl> 9° L1Ycs ❑NO r k ] „ k4'ere alt epy un l �i1fl�2VCti',= It tturo ;G25.1r50S.3 ( : 0-51u>1r1T ) 3a tilllet h'ee n 1L'ssdl rLLie'4 L 18 Was LEM giwc nuatal listed r1n rite c4lllailMr label? Iyes. Qncte]yes # l.r •,--.JI -:i IM)('PCesei-Vul iao M'l„fit txple{s) exe rec5eitied inemicerlyimeberved alttd were ed_n'sTC-cl At: Mrcun U1y ea1111)1e LtUST UZ, Wi rl1 'C u q circle ortv:1-12S0 4, .T-lh 03- MCI- NaOH u5i4 SR W MA ne of prescTt I1rtio '' fuwfc tlrtut cRC pres5MFi%-� it deeded, lrllea1sr11U1c in :he roniarriL-� brk r. were I+ecehvd frith bubbles >6 :1.n1 iu dielneacr- a:utylMLl ,' --• %vm:c rtia:. Yet lxi# i TRC = 0. � wWj (I[ 9L9 its rrn )atind u'e' t'. udjti tea aceoi'-diull} La sample ieccii-ri, Nvirli .soditun dug94llF4tC (N0,1331 witll T Tnicem ID: NA CKnliurnls: Lluartrax I.D. 5636p -Pave Ana lyftar 5erui'ocs. LLC oa':,c 1 :f 1 Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 231 of 231 aceAnalytical Report of Analysis CDM Smith 5400 Glenwood Avenue Suite 400 Raleigh, NC 27612 Attention: Mathew Colone Project Name: Cabarrus County LF Background Lot Number:YD20011 Date Completed:05/24/2023 07/11/2023 3:54 PM Approved and released by: Project Manager II: Cathy S. Dover r``�9 a[ceFo f�A16- TN I AN81 Nauvnaf Acrreafmfwn BaaN 11 � eOfFAi� A C C R E C I T E O TEST14G LABORATORY The electronic signature above is the equivalent of a handwritten signature. This report shall not be reproduced, except in its entirety, without the written approval of Pace Analytical Services, LLC. Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 Tel:803-791-9700 Fax:803-791-9111 www.pacelabs.com Page 1 of 53 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 Case Narrative CDM Smith Lot Number: YD20011 Report Revision 07/11/20023: This PDF report has been revised only to update the report narrative for the CD-1s BOD issue. The BOD for CD-1s was not scheduled and did not meet the 48 hour holding time from collection. When I found out I called the field person who was still in the field sampling, to see if the BOD sample could be recollected. He said they could not recollect and to cancel BOD. This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary following this Case Narrative. The sample receiving date is documented in the header information associated with each sample. All results listed in this report relate only to the samples that are contained within this report. Where sampling is conducted by the client, results relate to the accuracy of the information provided, and as the samples are received. Sample receipt, sample analysis, and data review have been performed in accordance with the most current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace") Laboratory Quality Manual, standard operating procedures (SOPS), and Pace policies. Any exceptions to the TNI standards, the Laboratory Quality Manual, SOPS or policies are qualified on the results page or discussed below. Pace is a TNI accredited laboratory; however, the following analyses are currently not listed on our TNI scope of accreditation: Drinking Water: VOC (excluding BTEX, MTBE, Naphthalene, & 1,2-dichloroethane) EPA 524.2, E. coli and Total coliforms SM 9223 B-2004, Solid Chemical Material: TOC Walkley-Black, Biological Tissue: All, Non -Potable Water: SGT-HEM EPA 1664B, Silica EPA 200.7, Boron, Calcium, Silicon, Strontium EPA 200.8, Bicarbonate, Carbonate, and Hydroxide Alkalinity SM 2320 B-2011, SM 9221 C E-2006 & SM 9222D-2006, Strontium SW-846 6010D, VOC SM 6200 B-2011, Fecal Coliform Colilert-18. VOA 8260D Insufficient sample volume was provided to perform matrix spike/matrix spike duplicate (MS/MSD) for analytical batch 73639. An LCS/LCSD was run in lieu of an MS/MSD. The laboratory control sample (LCS) and / or laboratory control sample duplicate (LCSD) for analytical batch 73639 exceeded acceptance criteria for the following analytes: Chloromethane (143%,141 %%), Vinyl Chloride (131%). These analytes were biased high and were not detected in the associated samples: YD20011-001, YD20011-002, and YD20011-004. YD20011-001 (CD-1d) (Run 1) (Analysis Batch 73639) YD20011-002 (CD-1s) (Run 1) (Analysis Batch 73639) YD20011-004 (Trip Blank) (Run 1) (Analysis Batch 73639) Dissolved Gases (RSK 175) The method blank associated with batch 74385 had Methane detected at a concentration that was above the DL but below the LOQ. All samples associated with this method blank that have detections for Methane have been flagged with a "B". If you have any questions regarding this report, please contact the Pace Project Manager listed on the cover page. Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 2 of 53 PACE ANALYTICAL SERVICES, LLC Sample Summary CDM Smith Lot Number: YD20011 Project Name: Cabarrus County LF Background Project Number: Sample Number Sample ID Matrix Date Sampled Date Received 001 CD-1d Aqueous 04/19/20231435 04/20/2023 002 CD-1s Aqueous 04/19/20231500 04/20/2023 003 CD-1s Aqueous 04/19/20231525 04/20/2023 004 Trip Blank Aqueous 04/19/2023 04/20/2023 (4 samples) Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 3 of 53 Inorganic non-metals Client:CDM Smith Laboratory ID:YD20011-001 Description: CD-1d Matrix: Aqueous Date Sampled:04/19/2023 1435 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/28/2023 2126 JJM 74152 1 (Chloride) 9056A 1 05/03/2023 2234 SJL 74432 1 (Sulfate) 9056A 1 05/03/2023 2234 SJL 74436 1 (TDS) SM 2540C-2015 1 04/26/2023 2127 CBP 73738 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su Chloride Sulfate TDS SM 2320B-2011 53 20 20 mg CaCO3/L 1 9056A 3.3 1.0 0.25 mg/L 1 9056A 2.1 1.0 0.25 mg/L 1 SM 254OC-2015 120 25 25 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 4 of 53 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD20011-001 Description: CD-1d Matrix: Aqueous Date Sampled:04/19/2023 1435 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0154 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND L 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D ND 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 5 of 53 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD20011-001 Description: CD-1d Matrix: Aqueous Date Sampled:04/19/2023 1435 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0154 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND L 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 104 70-130 1,2-Dichloroethane-d4 117 70-130 Toluene-d8 111 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 6 of 53 Inorganic non-metals Client:CDM Smith Laboratory ID:YD20011-002 Description: CD-1s Matrix: Aqueous Date Sampled:04/19/2023 1500 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/28/2023 2133 JJM 74152 1 (Chloride) 9056A 1 04/21/2023 0129 SJL 73294 1 (CO2 (calcula) SM 4500-CO2 D 1 04/28/2023 2133 JJM 1 (COD) SM 5220D-2011 1 05/11/2023 1635 GGC 75097 1 (Nitrate - N) 9056A 1 04/21/2023 0129 SJL 73299 1 (Sulfate) 9056A 1 04/21/2023 0129 SJL 73300 1 (Sulfide) SM 4500-S2 F-2011 1 04/26/2023 1052 CVR 73684 1 (TDS) SM 2540C-2015 1 04/26/2023 2127 CBP 73738 2 (TOC) SM 531 OC-2014 1 05/05/2023 2131 DMA 74595 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 50 20 20 mg CaCO3/L 1 Chloride 9056A 9.0 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 71 27 27 mg/L 1 COD SM 5220D-2011 ND 20 20 mg/L 1 Nitrate - N 9056A 0.22 0.020 0.0050 mg/L 1 Sulfate 9056A 0.53 J 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 ND 1.0 1.0 mg/L 1 TDS SM 254OC-2015 120 25 25 mg/L 1 TOC SM 531OC-2014 1.5 1.0 1.0 mg/L 2 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 7 of 53 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD20011-002 Description: CD-1s Matrix: Aqueous Date Sampled:04/19/2023 1500 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0218 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND L 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D ND 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 8 of 53 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD20011-002 Description: CD-1s Matrix: Aqueous Date Sampled:04/19/2023 1500 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/26/2023 0218 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND L 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 99 70-130 1,2-Dichloroethane-d4 120 70-130 Toluene-d8 109 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 9 of 53 Dissolved Gases Client:CDM Smith Laboratory ID:YD20011-002 Description: CD-1s Matrix: Aqueous Date Sampled:04/19/2023 1500 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 05/03/2023 1434 JWG 74385 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 ND 10 2.5 ug/L 1 74-85-1 RSK - 175 ND 10 2.5 ug/L 1 74-82-8 RSK - 175 5.9 BJ 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 10 of 53 CVAA Client:CDM Smith Laboratory ID:YD20011-002 Description: CD-1s Matrix: Aqueous Date Sampled:04/19/2023 1500 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 05/01/2023 1915 KJEW 05/01/2023 0325 74037 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A ND 0.00020 0.000091 mg/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 11 of 53 ICP-MS Metals Client:CDM Smith Laboratory ID:YD20011-002 Description: CD-1s Matrix: Aqueous Date Sampled:04/19/2023 1500 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/29/2023 0056 BNW Prep Date Batch 04/23/2023 1915 73235 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B ND 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B ND 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 37 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B ND 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B ND 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B ND 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B ND 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B ND 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 620 50 13 ug/L 1 Lead 7439-92-1 6020B ND 1.0 0.25 ug/L 1 Manganese 7439-96-5 6020B 17 5.0 1.3 ug/L 1 Nickel 7440-02-0 6020B ND 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B ND 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B ND 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B ND 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.3 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 2.5 J 10 2.5 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 12 of 53 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD20011-004 Description: Trip Blank Matrix: Aqueous Date Sampled:04/19/2023 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 2313 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D ND 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D ND 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D ND 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D ND 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D ND 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D ND 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D ND 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D ND 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D ND 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D ND 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D ND 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D ND 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D ND 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D ND L 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D ND 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D ND 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D ND 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D ND 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D ND 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D ND 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D ND 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D ND 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D ND 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D ND 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D ND 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D ND 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D ND 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D ND 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D ND 10 2.0 ug/L 1 Methacrylonitrile 126-98-7 8260D ND 5.0 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D ND 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D ND 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D ND 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D ND 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D ND 0.50 0.40 ug/L 1 Tetrahydrofuran 109-99-9 8260D ND 5.0 1.0 ug/L 1 Toluene 108-88-3 8260D ND 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D ND 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D ND 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D ND 0.50 0.40 ug/L 1 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 13 of 53 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD20011-004 Description: Trip Blank Matrix: Aqueous Date Sampled:04/19/2023 Project Name: Cabarrus County LF Date Received:04/20/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/25/2023 2313 CDA 73639 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D ND 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D ND 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D ND 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D ND L 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D ND 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 104 70-130 1,2-Dichloroethane-d4 114 70-130 Toluene-d8 114 70-130 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure NO = Not detected at or above the DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 14 of 53 QC Summary Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD20011 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 15 of 53 Inorganic non-metals - MB Sample ID: YQ73294-001 Matrix: Aqueous Batch: 73294 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Chloride ND 1 1.0 0.25 mg/L 04/20/2023 2303 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 16 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - LCS Sample ID: YQ73294-002 Matrix: Aqueous Batch: 73294 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 20 20 1 101 80-120 04/20/2023 2323 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 17 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MB Sample ID: YQ73299-001 Matrix: Aqueous Batch: 73299 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Nitrate - N ND 1 0.020 0.0050 mg/L 04/20/2023 2303 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 18 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - LCS Sample ID: YQ73299-002 Matrix: Aqueous Batch: 73299 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N 0.80 0.80 1 99 80-120 04/20/2023 2323 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 19 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MB Sample ID: YQ73300-001 Matrix: Aqueous Batch:73300 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Sulfate ND 1 1.0 0.25 mg/L 04/20/2023 2303 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 20 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - LCS Sample ID: YQ73300-002 Matrix: Aqueous Batch:73300 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 20 1 102 80-120 04/20/2023 2323 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 21 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MB Sample ID: YQ73684-001 Matrix: Aqueous Batch:73684 Analytical Method: SM 4500-S2 F-2011 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfide ND 1 1.0 1.0 mg/L 04/26/20231052 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 22 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - LCS Sample ID: YQ73684-002 Matrix: Aqueous Batch:73684 Analytical Method: SM 4500-S2 F-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfide 10 9.4 1 94 80-120 04/26/20231052 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 23 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MB Sample ID: YQ73738-001 Matrix: Aqueous Batch:73738 Analytical Method: SM 2540C-2015 Parameter Result Q Dil LOQ DL Units Analysis Date TDS ND 1 25 25 mg/L 04/26/2023 2127 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 24 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - LCS Sample ID: YQ73738-002 Matrix: Aqueous Batch:73738 Analytical Method: SM 2540C-2015 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 50 48 1 96 90-110 04/26/2023 2127 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 25 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - LCS Sample ID: YQ74152-002 Matrix: Aqueous Batch: 74152 Analytical Method: SM 2320B-2011 Spike Amount Result %Rec Parameter (mg CaCO3/L) (mg CaCO3/L) Q Dil % Rec Limit Analysis Date Alkalinity @ pH 4.5 su 100 99 1 99 90-110 04/28/2023 2031 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 26 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MB Sample ID: YQ74432-001 Matrix: Aqueous Batch:74432 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Chloride ND 1 1.0 0.25 mg/L 05/03/20231635 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 27 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - LCS Sample ID: YQ74432-002 Matrix: Aqueous Batch:74432 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 20 20 1 100 80-120 05/03/20231654 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 28 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MS Sample ID: YD2001 1 -001 MS Matrix: Aqueous Batch:74432 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 3.3 10 13 1 100 80-120 05/03/2023 2253 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 29 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MSD Sample ID: YD20011-001MID Matrix: Aqueous Batch:74432 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Chloride 3.3 10 13 1 101 0.48 80-120 20 05/03/2023 2312 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 30 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MB Sample ID: YQ74436-001 Matrix: Aqueous Batch:74436 Analytical Method: 9056A Parameter Result Q Dil LOQ DL Units Analysis Date Sulfate ND 1 1.0 0.25 mg/L 05/03/20231635 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 31 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - LCS Sample ID: YQ74436-002 Matrix: Aqueous Batch:74436 Analytical Method: 9056A Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 20 1 99 80-120 05/03/20231654 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 32 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MS Sample ID: YD2001 1 -001 MS Matrix: Aqueous Batch:74436 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 2.1 10 12 1 94 80-120 05/03/2023 2253 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 33 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MSD Sample ID: YD20011-001MID Matrix: Aqueous Batch:74436 Analytical Method: 9056A Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Sulfate 2.1 10 12 1 96 0.98 80-120 20 05/03/2023 2312 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 34 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MB Sample ID: YQ74595-001 Matrix: Aqueous Batch: 74595 Analytical Method: SM 531 OC-2014 Parameter Result Q Dil LOQ DL Units Analysis Date TOC ND 1 1.0 1.0 mg/L 05/05/2023 2020 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 35 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - LCS Sample ID: YQ74595-002 Matrix: Aqueous Batch: 74595 Analytical Method: SM 531 OC-2014 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TOC 40 39 1 98 90-110 05/05/2023 2031 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 36 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - MB Sample ID: YQ75097-001 Matrix: Aqueous Batch: 75097 Analytical Method: SM 5220D-2011 Parameter Result Q Dil LOQ DL Units Analysis Date COD ND 1 20 20 mg/L 05/11/20231633 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 37 of 53 QC Data for Lot Number: YD20011 Inorganic non-metals - LCS Sample ID: YQ75097-002 Matrix: Aqueous Batch: 75097 Analytical Method: SM 5220D-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date COD 40 41 1 103 95-105 05/11/20231633 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 38 of 53 QC Data for Lot Number: YD20011 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73639-001 Matrix: Aqueous Batch: 73639 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone ND 1 10 4.0 ug/L 04/25/2023 2115 Acrylonitrile ND 1 5.0 0.80 ug/L 04/25/2023 2115 Benzene ND 1 0.50 0.40 ug/L 04/25/2023 2115 Bromochloromethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Bromodichloromethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Bromoform ND 1 0.50 0.40 ug/L 04/25/2023 2115 Bromomethane (Methyl bromide) ND 1 0.50 0.40 ug/L 04/25/2023 2115 2-Butanone (MEK) ND 1 10 2.0 ug/L 04/25/2023 2115 Carbon disulfide ND 1 0.50 0.40 ug/L 04/25/2023 2115 Carbon tetrachloride ND 1 0.50 0.40 ug/L 04/25/2023 2115 Chlorobenzene ND 1 0.50 0.40 ug/L 04/25/2023 2115 Chloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Chloroform ND 1 0.50 0.40 ug/L 04/25/2023 2115 Chloromethane (Methyl chloride) ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,2-Dibromo-3-chloropropane (DBCP) ND 1 0.50 0.40 ug/L 04/25/2023 2115 Dibromochloromethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,2-Dibromoethane (EDB) ND 1 0.50 0.40 ug/L 04/25/2023 2115 Dibromomethane (Methylene bromide) ND 1 0.50 0.40 ug/L 04/25/2023 2115 trans- 1,4-Dichloro-2-butene ND 1 2.0 0.40 ug/L 04/25/2023 2115 1,2-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,4-Dichlorobenzene ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,1-Dichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,2-Dichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,1-Dichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 2115 cis- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 2115 trans- 1,2-Dichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,2-Dichloropropane ND 1 0.50 0.40 ug/L 04/25/2023 2115 cis- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/25/2023 2115 trans- 1,3-Dichloropropene ND 1 0.50 0.40 ug/L 04/25/2023 2115 Ethylbenzene ND 1 0.50 0.40 ug/L 04/25/2023 2115 2-Hexanone ND 1 10 2.0 ug/L 04/25/2023 2115 Methacrylonitrile ND 1 5.0 2.0 ug/L 04/25/2023 2115 Methyl iodide (lodomethane) ND 1 5.0 0.40 ug/L 04/25/2023 2115 4-Methyl-2-pentanone ND 1 10 2.0 ug/L 04/25/2023 2115 Methylene chloride ND 1 0.50 0.40 ug/L 04/25/2023 2115 Styrene ND 1 0.50 0.41 ug/L 04/25/2023 2115 1,1,1,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,1,2,2-Tetrachloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Tetrachloroethene ND 1 0.50 0.40 ug/L 04/25/2023 2115 Tetrahydrofuran ND 1 5.0 1.0 ug/L 04/25/2023 2115 Toluene ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,1,1-Trichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,1,2-Trichloroethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Trichloroethene ND 1 0.50 0.40 ug/L 04/25/2023 2115 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 39 of 53 QC Data for Lot Number: YD20011 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73639-001 Matrix: Aqueous Batch:73639 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Trichlorofluoromethane ND 1 0.50 0.40 ug/L 04/25/2023 2115 1,2,3-Trichloropropane ND 1 0.50 0.40 ug/L 04/25/2023 2115 Vinyl acetate ND 1 5.0 1.2 ug/L 04/25/2023 2115 Vinyl chloride ND 1 0.50 0.40 ug/L 04/25/2023 2115 Xylenes (total) ND 1 1.0 0.40 ug/L 04/25/2023 2115 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 105 70-130 1,2-Dichloroethane-d4 114 70-130 Toluene-d8 110 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD20011 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 40 of 53 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73639-002 Matrix: Aqueous Batch: 73639 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 110 1 110 60-140 04/25/2023 1901 Acrylonitrile 100 96 1 96 70-130 04/25/2023 1901 Benzene 50 49 1 99 70-130 04/25/2023 1901 Bromochloromethane 50 47 1 94 70-130 04/25/2023 1901 Bromodichloromethane 50 47 1 95 70-130 04/25/2023 1901 Bromoform 50 49 1 99 70-130 04/25/2023 1901 Bromomethane (Methyl bromide) 50 61 1 121 70-130 04/25/2023 1901 2-Butanone (MEK) 100 100 1 103 70-130 04/25/2023 1901 Carbon disulfide 50 47 1 93 70-130 04/25/2023 1901 Carbon tetrachloride 50 50 1 99 70-130 04/25/2023 1901 Chlorobenzene 50 50 1 99 70-130 04/25/2023 1901 Chloroethane 50 59 1 119 70-130 04/25/2023 1901 Chloroform 50 49 1 99 70-130 04/25/2023 1901 Chloromethane (Methyl chloride) 50 72 N 1 143 60-140 04/25/2023 1901 1,2-Dibromo-3-chloropropane (DBCP) 50 46 1 93 70-130 04/25/2023 1901 Dibromochloromethane 50 49 1 99 70-130 04/25/2023 1901 1,2-Dibromoethane (EDB) 50 51 1 101 70-130 04/25/2023 1901 Dibromomethane (Methylene bromide) 50 48 1 96 70-130 04/25/2023 1901 trans- 1,4-Dichloro-2-butene 50 46 1 91 70-130 04/25/2023 1901 1,2-Dichlorobenzene 50 47 1 94 70-130 04/25/2023 1901 1,4-Dichlorobenzene 50 46 1 92 70-130 04/25/2023 1901 1,1-Dichloroethane 50 46 1 93 70-130 04/25/2023 1901 1,2-Dichloroethane 50 47 1 95 70-130 04/25/2023 1901 1,1-Dichloroethene 50 50 1 100 70-130 04/25/2023 1901 cis- 1,2-Dichloroethene 50 48 1 96 70-130 04/25/2023 1901 trans- 1,2-Dichloroethene 50 48 1 96 70-130 04/25/2023 1901 1,2-Dichloropropane 50 48 1 96 70-130 04/25/2023 1901 cis- 1,3-Dichloropropene 50 53 1 105 70-130 04/25/2023 1901 trans- 1,3-Dichloropropene 50 52 1 104 70-130 04/25/2023 1901 Ethylbenzene 50 56 1 111 70-130 04/25/2023 1901 2-Hexanone 100 98 1 98 70-130 04/25/2023 1901 Methacrylonitrile 250 260 1 103 70-130 04/25/2023 1901 Methyl iodide (lodomethane) 50 46 1 92 70-130 04/25/2023 1901 4-Methyl-2-pentanone 100 110 1 107 70-130 04/25/2023 1901 Methylene chloride 50 52 1 104 70-130 04/25/2023 1901 Styrene 50 51 1 102 70-130 04/25/2023 1901 1,1,1,2-Tetrachloroethane 50 48 1 96 70-130 04/25/2023 1901 1,1,2,2-Tetrachloroethane 50 45 1 89 70-130 04/25/2023 1901 Tetrachloroethene 50 54 1 107 70-130 04/25/2023 1901 Tetrahydrofuran 50 48 1 96 70-130 04/25/2023 1901 Toluene 50 53 1 106 70-130 04/25/2023 1901 1,1,1-Trichloroethane 50 47 1 95 70-130 04/25/2023 1901 1,1,2-Trichloroethane 50 47 1 95 70-130 04/25/2023 1901 Trichloroethene 50 52 1 103 70-130 04/25/2023 1901 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 41 of 53 QC Data for Lot Number: YD20011 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73639-002 Matrix: Aqueous Batch:73639 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Trichlorofluoromethane 50 62 1 123 70-130 04/25/2023 1901 1,2,3-Trichloropropane 50 46 1 91 70-130 04/25/2023 1901 Vinyl acetate 50 46 1 92 60-140 04/25/2023 1901 Vinyl chloride 50 65 N 1 131 70-130 04/25/2023 1901 Xylenes (total) 100 110 1 113 70-130 04/25/2023 1901 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 113 70-130 1,2-Dichloroethane-d4 97 70-130 Toluene-d8 109 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD20011 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 42 of 53 Volatile Organic Compounds by GC/MS - LCSD Sample ID: YQ73639-003 Matrix: Aqueous Batch: 73639 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec % RPD Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Acetone 100 110 1 106 4.4 60-140 20 04/25/2023 1948 Acrylonitrile 100 94 1 94 1.8 70-130 40 04/25/2023 1948 Benzene 50 48 1 97 2.0 70-130 20 04/25/2023 1948 Bromochloromethane 50 48 1 95 1.1 70-130 20 04/25/2023 1948 Bromodichloromethane 50 46 1 93 1.8 70-130 20 04/25/2023 1948 Bromoform 50 47 1 93 6.0 70-130 20 04/25/2023 1948 Bromomethane (Methyl bromide) 50 61 1 121 0.033 70-130 20 04/25/2023 1948 2-Butanone (MEK) 100 99 1 99 4.8 70-130 20 04/25/2023 1948 Carbon disulfide 50 48 1 97 3.8 70-130 20 04/25/2023 1948 Carbon tetrachloride 50 49 1 97 1.7 70-130 20 04/25/2023 1948 Chlorobenzene 50 48 1 96 3.2 70-130 20 04/25/2023 1948 Chloroethane 50 59 1 118 0.086 70-130 20 04/25/2023 1948 Chloroform 50 50 1 100 0.95 70-130 20 04/25/2023 1948 Chloromethane (Methyl chloride) 50 71 N 1 141 1.6 60-140 20 04/25/2023 1948 1,2-Dibromo-3-chloropropane (DBCP) 50 48 1 97 4.3 70-130 20 04/25/2023 1948 Dibromochloromethane 50 47 1 95 4.0 70-130 20 04/25/2023 1948 1,2-Dibromoethane (EDB) 50 49 1 98 3.0 70-130 20 04/25/2023 1948 Dibromomethane (Methylene bromide) 50 47 1 94 2.0 70-130 20 04/25/2023 1948 trans- 1,4-Dichloro-2-butene 50 43 1 86 6.2 70-130 20 04/25/2023 1948 1,2-Dichlorobenzene 50 48 1 97 2.6 70-130 20 04/25/2023 1948 1,4-Dichlorobenzene 50 47 1 93 0.88 70-130 20 04/25/2023 1948 1,1-Dichloroethane 50 47 1 94 0.78 70-130 20 04/25/2023 1948 1,2-Dichloroethane 50 47 1 94 0.51 70-130 20 04/25/2023 1948 1,1-Dichloroethene 50 51 1 102 1.7 70-130 20 04/25/2023 1948 cis- 1,2-Dichloroethene 50 49 1 97 0.87 70-130 20 04/25/2023 1948 trans- 1,2-Dichloroethene 50 48 1 96 0.11 70-130 20 04/25/2023 1948 1,2-Dichloropropane 50 47 1 94 1.8 70-130 20 04/25/2023 1948 cis- 1,3-Dichloropropene 50 51 1 102 3.6 70-130 20 04/25/2023 1948 trans- 1,3-Dichloropropene 50 52 1 103 0.71 70-130 20 04/25/2023 1948 Ethylbenzene 50 54 1 108 2.7 70-130 20 04/25/2023 1948 2-Hexanone 100 88 1 88 10 70-130 20 04/25/2023 1948 Methacrylonitrile 250 250 1 101 2.0 70-130 20 04/25/2023 1948 Methyl iodide (lodomethane) 50 49 1 97 5.4 70-130 20 04/25/2023 1948 4-Methyl-2-pentanone 100 99 1 99 8.1 70-130 20 04/25/2023 1948 Methylene chloride 50 55 1 110 5.4 70-130 20 04/25/2023 1948 Styrene 50 49 1 99 3.2 70-130 20 04/25/2023 1948 1,1,1,2-Tetrachloroethane 50 48 1 96 0.34 70-130 20 04/25/2023 1948 1,1,2,2-Tetrachloroethane 50 44 1 89 0.067 70-130 20 04/25/2023 1948 Tetrachloroethene 50 52 1 103 3.8 70-130 20 04/25/2023 1948 Tetrahydrofuran 50 46 1 93 3.1 70-130 20 04/25/2023 1948 Toluene 50 52 1 104 1.7 70-130 20 04/25/2023 1948 1,1,1-Trichloroethane 50 48 1 96 1.2 70-130 20 04/25/2023 1948 1,1,2-Trichloroethane 50 46 1 92 2.4 70-130 20 04/25/2023 1948 Trichloroethene 50 51 1 102 0.95 70-130 20 04/25/2023 1948 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 43 of 53 QC Data for Lot Number: YD20011 Volatile Organic Compounds by GC/MS - LCSD Sample ID: YQ73639-003 Matrix: Aqueous Batch:73639 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec % RPD Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Trichlorofluoromethane 50 63 1 127 2.6 70-130 20 04/25/2023 1948 1,2,3-Trichloropropane 50 46 1 91 0.48 70-130 20 04/25/2023 1948 Vinyl acetate 50 47 1 94 1.6 60-140 20 04/25/2023 1948 Vinyl chloride 50 64 1 128 1.7 70-130 20 04/25/2023 1948 Xylenes (total) 100 110 1 110 3.1 70-130 20 04/25/2023 1948 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 108 70-130 1,2-Dichloroethane-d4 96 70-130 Toluene-d8 107 70-130 LOQ = Limit of Quantitation ND = Not detected at or above the DL N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD20011 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 44 of 53 Dissolved Gases - MB Sample ID: YQ74385-001 Matrix: Aqueous Batch: 74385 Analytical Method: RSK - 175 Parameter Result Q Dil LOQ DL Units Analysis Date Ethane ND 1 10 2.5 ug/L 05/03/20231132 Ethene ND 1 10 2.5 ug/L 05/03/20231132 Methane 2.9 J 1 10 2.5 ug/L 05/03/20231132 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 45 of 53 QC Data for Lot Number: YD20011 Dissolved Gases - LCS Sample ID: YQ74385-002 Matrix: Aqueous Batch: 74385 Analytical Method: RSK - 175 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Ethane 550 580 1 104 70-130 05/03/20231038 Ethene 520 530 1 102 70-130 05/03/20231038 Methane 300 280 1 95 70-130 05/03/20231038 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 46 of 53 QC Data for Lot Number: YD20011 ICP-MS Metals - MB Sample ID: YQ73235-001 Matrix: Aqueous Batch: 73235 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/23/2023 1915 Parameter Result Q Dil LOQ DL Units Analysis Date Antimony ND 1 2.0 0.50 ug/L 04/28/20231947 Arsenic ND 1 2.0 1.3 ug/L 04/28/20231947 Barium ND 1 5.0 1.3 ug/L 04/28/20231947 Beryllium ND 1 0.40 0.15 ug/L 04/28/20231947 Cadmium ND 1 0.50 0.13 ug/L 04/28/20231947 Chromium ND 1 5.0 1.3 ug/L 04/28/20231947 Cobalt ND 1 5.0 1.3 ug/L 04/28/20231947 Copper ND 1 5.0 1.3 ug/L 04/28/20231947 Iron ND 1 50 13 ug/L 04/28/20231947 Lead ND 1 1.0 0.25 ug/L 04/28/20231947 Manganese ND 1 5.0 1.3 ug/L 04/28/20231947 Nickel ND 1 5.0 1.3 ug/L 04/28/20231947 Selenium ND 1 5.0 1.3 ug/L 04/28/20231947 Silver ND 1 1.0 0.25 ug/L 04/28/20231947 Thallium ND 1 0.50 0.15 ug/L 04/28/20231947 Vanadium ND 1 5.0 2.5 ug/L 04/28/20231947 Zinc ND 1 10 2.5 ug/L 04/28/20231947 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 47 of 53 QC Data for Lot Number: YD20011 ICP-MS Metals - LCS Sample ID: YQ73235-002 Matrix: Aqueous Batch: 73235 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/23/2023 1915 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 100 100 1 101 80-120 04/28/20231959 Arsenic 100 100 1 102 80-120 04/28/20231959 Barium 100 100 1 103 80-120 04/28/20231959 Beryllium 100 98 1 98 80-120 04/28/20231959 Cadmium 100 110 1 106 80-120 04/28/20231959 Chromium 100 110 1 111 80-120 04/28/20231959 Cobalt 100 120 1 117 80-120 04/28/20231959 Copper 100 110 1 112 80-120 04/28/20231959 Iron 1000 1100 1 114 80-120 04/28/20231959 Lead 100 110 1 110 80-120 04/28/20231959 Manganese 100 100 1 104 80-120 04/28/20231959 Nickel 100 110 1 112 80-120 04/28/20231959 Selenium 100 91 1 91 80-120 04/28/20231959 Silver 100 110 1 112 80-120 04/28/20231959 Thallium 100 110 1 108 80-120 04/28/20231959 Vanadium 100 100 1 105 80-120 04/28/20231959 Zinc 100 100 1 104 80-120 04/28/20231959 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 48 of 53 QC Data for Lot Number: YD20011 CVAA -MB Sample ID: YQ74037-001 Matrix: Aqueous Batch:74037 Prep Method: Analytical Method: 7470A Prep Date: 05/01/2023 0325 Parameter Result Q Dil LOQ DL Units Analysis Date Mercury ND 1 0.00020 0.000091 mg/L 05/01/20231848 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 49 of 53 QC Data for Lot Number: YD20011 CVAA - LCS Sample ID: YQ74037-002 Matrix: Aqueous Batch:74037 Prep Method: Analytical Method: 7470A Prep Date: 05/01/2023 0325 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Mercury 0.0020 0.0020 1 98 80-120 05/01/20231851 LOQ = Limit of Quantitation DL = Detection Limit ND = Not detected at or above the DL J = Estimated result < LOQ and > DL = RSD is out of criteria N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 50 of 53 QC Data for Lot Number: YD20011 Chain of Custody and Miscellaneous Documents Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 51 of 53 PACE ANALYTICAL SERVICES, LLC LO �r S- z tiL �a, F yy�� y ;iY C'•aj'.'4 is Y.'�L15?� lp wl� I .17 r � iL r, QF. V c Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 52 of 53 PACE ANALYTICAL SERVICES, LLC fDC#_7ir!e: ENV F RM WCOL-0281i vG2_SmT1ple5 fieaeirrt4�hedkt fJ1Cj Effecdve Date. 8 A022 Sample Receipt ChPCIdist ( RU) cl;C:lr; CDh1 aRaltfl nnser 'i7s 7ectad Eaw;�j �[r= '' f K4 Ql 3 LOT A: YMCOL aids ofre�eipr: FT Pnce cht- l[ Lips ,{ }adF% Otlbrt; L_ iaJere rtrg-o SC`Afs pa>a•sratit ov �ft� cooJat± ?. Lf "c tody seals wwQ Nvrt Aieyiv#act and IM H Ship FO: =�''�k C:�rinriite Strip ID: Dx 7esiedty' A' FL lil:ti temp rahlre [�llrrr receipt 17Je:i�'e[t ('cnrec'fc[I} trla[pen,r:.a'e lyioai rece;pf '''uS01id Snal){Y[p JD;2 r 4.2 PC NA ± NA er. NA fN!t ,C NA iN cC arhv3.. ©� artlgl Mts7Ta Mznl- g,ttnst 1f310f1J9! IR char ID etiwdofcoolaztt: i W, Ic IceRi M Dr, ice F1 done [a Yss E7NQ 11NA I Vdr.ie all cuoler6 ieeeiverl at or bewy? 15.0°c? If a u, lwas Peoject I�.Tiiapr imfi fiod? PM-6vas NofiHcd b}. plume l ent9ii 1 frle�?u-hre (eiicle ❑nr). Yes i�o N4 4, 11 f:ie coaunlerciaJ cn1h'iel''S tki17hj[L� Sip nttc.Ch" to 1. ',& f*IM7 { V er NO *5_ Karr g, v r castadyproccxi,:[cs (1rJuulreis)se{,5+eoei%-ed) followed' lJ' Yes No 5, W=v &inmplc Mr. listzrl on Hitt COC ,uiL,all samnle eontaiam? I( Yes NO 7_ Was cofiecriali cja;�- & iiuic lisfed uri IFre CUC aed all sur'iple enortakne s.1 'e9f A. Thai n2l Ccuitariaier Ael infommion (1D. date, risk) agree mid1 dw CO'C? ,{ 77 .No J_ 4tr"e *M& 10 t-t performed Uved cast Ore 00CG' IDY,6 FIND [Or Did all saiig33es arrive in slue proper {-u tj&L:i71 :or cmLi w9t ffl&o' it gWd MiifitTM {11r[Ixiv%aL 1aCJb ❑il, �t�_},� 11_ Wa[e arlixJuara 5ampieialtlf a alldiri rle';ts E esr Ido No I2r Wue Al samples r6mival- �.IWa M #ireJhr[�l&g f a-.Lr yr 45 hvltirs, wllicJ � C conies first QYrs [:]No ] 3. )Vefe ye116M-UP]U'v Cau'Miaiera aCC0unted foaQ (Na rrglSFutg'eXGeS3) [AY-51i1! [:]RA14. Were Vf)A. L'0UC and RSK 175 �'aLllple-, f72c' ofLOCOS >`VQS-y17e$ tip,-CH-6111-'.5 P'I dl& meter) ki any of rlre VGA yje Yet Ido INA 15. Wei+- M11 DRO+tratalsknurdegr of a Pxf of- 2? Yes No I IAA 11. Wf:1'2 all Cyuiitle sat ec reeeia-�M Q; El y=1-- 12 and aul.f de sauv)J!ee race i w et: rr s PH > 4' 17. INdit ail a pp ica a �r'f17Muyn13idttuUx- w11EZ:1. 1i _3 (t Gl arsr�e:aJ cIY3 I' ❑Yes QNo ©-NA 1R. WM-k tlxe quid: [b uauaT listed on Else cmmire. lal:vcr if yam. glrote 1; ample PjLesers-.qfian (lyhrsl Lc completed fo: COY SUBPle(s) iE=1-icrily T)FLMI'Ved If With Lexrkpace_) n,pk(,) � VWe a�ecrived :.aieGrmctlypfewcved at:3 Were adjrr57er,1 acomdintily sWOk Lett%aarg Vr fll ail of63'ck ❑rc_ H2SO4. IWO3. IJCI_ NaOT-F 1isin� 9R+r !YA F. Fime r f rescn atiorrMA_ IfUWMM ttau one ,a"2�ied, P1Casenfxe ill Th12 mMkT*11ts 1~eknV -NA ware r-eceived wifli buEsbles >6 Taut 41 diaaw r, k4t) "" zvcra recce-,l Wil TRC } 0.4 Il1ar [, (if it 14 is Irv) Maud VRIV flitusted arcarduig]y ua Sawfilc r&G6%-idg w:1h sadrnuk thiowince {i�;fl;S:O�} v<'4dl TJoique IUD: Nk C nmanty. Q1JFkItfaXkIp:56360 Pare AnalirtfcafSer�iC2}, LL� 1-'ti..,e'1 a:;' i Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 53 of 53 aceAnalytical Report of Analysis CDM Smith 5400 Glenwood Avenue Suite 400 Raleigh, NC 27612 Attention: Mathew Colone Project Name: Cabarrus County LF-Unit 2 & 3 Lot Number:YD22004 Date Completed:05/05/2023 05/14/2023 11:58 PM Approved and released by: Project Manager II: Cathy S. Dover r``�9 a[ceFo f�A16- TN I AN81 Nauvnaf Acrreafmfwn BaaN 11 � eOfFAi� A C C R E C I T E O TEST14G LABORATORY The electronic signature above is the equivalent of a handwritten signature. This report shall not be reproduced, except in its entirety, without the written approval of Pace Analytical Services, LLC. Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 Tel:803-791-9700 Fax:803-791-9111 www.pacelabs.com Page 1 of 15 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 Case Narrative CDM Smith Lot Number: YD22004 This Report of Analysis contains the analytical result(s) for the sample(s) listed on the Sample Summary following this Case Narrative. The sample receiving date is documented in the header information associated with each sample. All results listed in this report relate only to the samples that are contained within this report. Where sampling is conducted by the client, results relate to the accuracy of the information provided, and as the samples are received. Sample receipt, sample analysis, and data review have been performed in accordance with the most current approved The NELAC Institute (TNI) standards, the Pace Analytical Services, LLC ("Pace") Laboratory Quality Manual, standard operating procedures (SOPS), and Pace policies. Any exceptions to the TNI standards, the Laboratory Quality Manual, SOPS or policies are qualified on the results page or discussed below. Pace is a TNI accredited laboratory; however, the following analyses are currently not listed on our TNI scope of accreditation: Drinking Water: VOC (excluding BTEX, MTBE, Naphthalene, & 1,2- dichloroethane) EPA 524.2, E. coli and Total coliforms SM 9223 B-2004, Solid Chemical Material: TOC Walkley-Black, Biological Tissue: All, Non -Potable Water: SGT-HEM EPA 1664B, Silica EPA 200.7, Boron, Calcium, Silicon, Strontium EPA 200.8, Bicarbonate, Carbonate, and Hydroxide Alkalinity SM 2320 B-2011, SM 9221 C E-2006 & SM 9222D-2006, Strontium SW-846 6010D, VOC SM 6200 B-2011, Fecal Coliform Colilert-18. If you have any questions regarding this report, please contact the Pace Project Manager listed on the cover page. Pace Analytical Services, LLC (formerly Shealy Environmetal Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 whw.pacelabs.com Page 2 of 15 PACE ANALYTICAL SERVICES, LLC Sample Summary CDM Smith Lot Number: YD22004 Project Name: Cabarrus County LF-Unit 2 & 3 Project Number: Sample Number Sample ID Matrix Date Sampled Date Received 001 MW-1 Aqueous 04/21/2023 0820 04/22/2023 002 MW-E deep Aqueous 04/21/2023 0830 04/22/2023 003 AMW-2d Aqueous 04/21/2023 0840 04/22/2023 004 MW-C Aqueous 04/21/2023 0850 04/22/2023 (4 samples) Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 3 of 15 Semivolatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD22004-001 Description: MW-1 Matrix: Aqueous Date Sampled:04/21/2023 0820 Project Name: Cabarrus County LF-Unit 2 & 3 Date Received:04/22/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 3520C 8270D 1 05/03/2023 1833 JCG 04/26/2023 1512 73694 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run bis(2-Ethylhexyl)phthalate 117-81-7 8270D 4.0 U 4.0 0.50 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d5 Terphenyl-d14 2,4,6-Tribromophenol 51 37-129 55 24-127 77 38-127 72 28-128 60 10-148 62 35-144 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 4 of 15 Semivolatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD22004-002 Description: MW-E deep Matrix: Aqueous Date Sampled:04/21/2023 0830 Project Name: Cabarrus County LF-Unit 2 & 3 Date Received:04/22/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 3520C 8270D 1 05/03/2023 1949 JCG 04/26/2023 1512 73694 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run bis(2-Ethylhexyl)phthalate 117-81-7 8270D 4.0 U 4.0 0.50 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d5 Terphenyl-d14 2,4,6-Tribromophenol 49 37-129 44 24-127 76 38-127 59 28-128 59 10-148 65 35-144 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 5 of 15 Semivolatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD22004-003 Description: AMW-2d Matrix: Aqueous Date Sampled:04/21/2023 0840 Project Name: Cabarrus County LF-Unit 2 & 3 Date Received:04/22/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 3520C 8270D 1 05/03/2023 2014 JCG 04/26/2023 1512 73694 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run bis(2-Ethylhexyl)phthalate 117-81-7 8270D 4.0 U 4.0 0.50 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d5 Terphenyl-d14 2,4,6-Tribromophenol 49 37-129 45 24-127 76 38-127 55 28-128 61 10-148 61 35-144 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 6 of 15 Semivolatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD22004-004 Description: MW-C Matrix: Aqueous Date Sampled:04/21/2023 0850 Project Name: Cabarrus County LF-Unit 2 & 3 Date Received:04/22/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 3520C 8270D 1 05/03/2023 2039 JCG 04/26/2023 1512 73694 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run bis(2-Ethylhexyl)phthalate 117-81-7 8270D 4.0 U 4.0 0.50 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d5 Terphenyl-d14 2,4,6-Tribromophenol 50 37-129 40 24-127 79 38-127 67 28-128 61 10-148 63 35-144 LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range DL = Detection Limit Q = Surrogate failure U = Not detected at or above the LOQ N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40 % J = Estimated result < LOQ and > DL L = LCS/LCSD failure H = Out of holding time W = Reported on wet weight basis S = MS/MSD failure Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 7 of 15 QC Summary Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD22004 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 8 of 15 Semivolatile Organic Compounds by GC/MS - MB Sample ID: YQ73694-001 Matrix: Aqueous Batch:73694 Prep Method: 3520C Analytical Method: 8270D Prep Date: 04/26/2023 1512 Parameter Result Q Dil LOQ DL Units Analysis Date bis(2-Ethy1hexy1)phtha1ate 4.0 U 1 4.0 0.50 ug/L 05/03/20231124 Acceptance Surrogate Q % Rec Limit 2-Fluorobiphenyl 54 37-129 2-Fluorophenol 55 24-127 Nitrobenzene-d5 79 38-127 Phenol-d5 68 28-128 TerphenyIA14 62 10-148 2,4,6-Tribromophenol 64 35-144 LOQ = Limit of Quantitation U = Not detected at or above the LOD N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD22004 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 9 of 15 Semivolatile Organic Compounds by GC/MS - LCS Sample ID: YQ73694-002 Matrix: Aqueous Batch:73694 Prep Method: 3520C Analytical Method: 8270D Prep Date: 04/26/2023 1512 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date bis(2-Ethy1hexy1)phtha1ate 40 30 1 76 30-130 05/03/20231149 Surrogate Q % Rec Acceptance Limit 2-Fluorobiphenyl 57 37-129 2-Fluorophenol 50 24-127 Nitrobenzene-d5 95 38-127 Phenol-d5 80 28-128 TerphenyIA14 60 10-148 2,4,6-Tribromophenol 63 35-144 LOQ = Limit of Quantitation U = Not detected at or above the LOD N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD22004 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 10 of 15 Semivolatile Organic Compounds by GC/MS - MS Sample ID: YD22004-001 MS Matrix: Aqueous Batch:73694 Prep Method: 3520C Analytical Method: 8270D Prep Date: 04/26/2023 1512 Sample Spike Amount Amount Result %Rec Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date bis(2-Ethy1hexy1)phtha1ate 0.0 80 60 1 75 70-131 05/03/20231858 Surrogate Q % Rec Acceptance Limit 2-Fluorobiphenyl 53 37-129 2-Fluorophenol 51 24-127 Nitrobenzene-d5 88 38-127 Phenol-d5 68 28-128 TerphenyIA14 60 10-148 2,4,6-Tribromophenol 65 35-144 LOQ = Limit of Quantitation U = Not detected at or above the LOD N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD22004 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 11 of 15 Semivolatile Organic Compounds by GC/MS - MSD Sample ID: YD22004-001 MD Matrix: Aqueous Batch:73694 Prep Method: 3520C Analytical Method: 8270D Prep Date: 04/26/2023 1512 Sample Spike Amount Amount Result %Rec % RPD Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date bis(2-Ethy1hexy1)phtha1ate 0.0 80 59 1 74 0.99 70-131 40 05/03/20231924 Surrogate Q % Rec Acceptance Limit 2-Fluorobiphenyl 54 37-129 2-Fluorophenol 50 24-127 Nitrobenzene-d5 88 38-127 Phenol-d5 63 28-128 TerphenyIA14 60 10-148 2,4,6-Tribromophenol 65 35-144 LOQ = Limit of Quantitation U = Not detected at or above the LOD N = Recovery is out of criteria DL = Detection Limit J = Estimated result < LOQ and > DL P = The RPD between two GC columns exceeds 40 % = RSD is out of criteria + = RPD is out of criteria Note: Calculations are performed before rounding to avoid round -off errors in calculated results Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD22004 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 12 of 15 Chain of Custody and Miscellaneous Documents Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 13 of 15 PACE ANALYTICAL SERVICES, LLC a I I U} aw gg C kS T hUiV o x oFL t � I L Cl I Y r r r+5 :7 a l r �q 9 { 3 cis - I yam. �pp r zz L' Jej G� ti k g rb F Z i a w� lam'+ 0 3 Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 14 of 15 PACE ANALYTICAL SERVICES, LLC LDC# Titre' El`4V-FRM-WCUL 0285vG2_Samp! esRecriptChacklist�SkCj Yfective Dec 81212M S;Lmrlc Receipt Chccklist (SRC) Clienr CT iSniih Cooler Inspectedbyddate- MIm 10 04+:�' � Lot-k YD22ON t M5'OIr+ CC1Pr_ Pfire t='licill UPS V FMFz Otfiel' V, Yes No 1. Wxe rttstody $t 15 resent Oil lire COCIZE+ Yes N0 NA 2 IFCUSta 5er:ls xwE 11Mill, IXLLIe 1!ht wy> 11: ct Mid U11brolwn? ,II `StCip ID: 11A Cl7 Tux Strip ID: NA Tested Dv, `(i Ol uat tranpex7tUfe ulna, re�e*ti Deiivrtd (Ccrmcted) teinpti'attuc upon Ieteip: 9'�Solirl malt-Orp M, K•� 1.5 1 t,5 oc. A'K f NA uc NA f NA nx- NA ; zfA aC A-4erhod:QTclEpevm1a'tELt La- uhiyiBuille� ID' LR Gull Ouirctonr'ac=-. lb 4cthafi rr`t4�irtarll: .❑ we- i-�lee 1 aci3 7 i)ry Ice Nc,, Wlycs ONO Nt ' all cao ens rtcri•. d at orbe€au' 6, °C7 Ifuo, vrf7s Ptc7d M.auagcractilied? Plvi Im Notlfted by: pllane f einnit l Lila _ra-tcc (circle mlt)_ �Lye No l iA, Ls1IlrcoJln�trtifllt.�ut6irr'�l.acleio 51i113>trcLcdG4thisfo,�lf.' [,VOIYc� i r[1 d. leie p70t]CTell tOdv�11Y}ccrlrucs fr Inrntttslrrrila rviv�r11 Ft:1�,+ iq r/ Yes fro G_ Wt!lr se,Ui 31e IDlisted 031 the COC Md all sort . le mkiaiiicrs'x .Yes N,31 r. WRS -Collccfion da(r & tunc listed all the COC sUrtl all sawle iD%ffW11Ci17 V Y,,s -C]'Nol a Al Colitflinulabd idbrautio.0 0. chin` min.) agt'ee wkIk du- Coc? ,� `es x rx 5, Wett t!sN tc, be peif'ont_ot1! lkteA (, L ilw C.Qc7 �YL`5 IJ []ND 10. Did all 3,kF311 ks Rnivt in the piopa,rc-oiitniners far each ana and'or ill�Ood LOU(JitiM (zulblou'll, lids ou, err_)? ,I lees ld 11_ or, adegva`s quEple volm r- ovniltlble? 5<es Na 12. Welt- LU sarxlPles 1wip ❑MS1 E]Nal 113_WI!FtIII 5JUJ.rL;;CclritajMSMG-,01131re[+frxr?'NOlrJi:i i1FJC7LCC55) Ljyis [JNo S�h ! 4_ WCrc VOA_ 8015C' and RSK-175 �auii�les free of bubbles �` Sea�sir „ i k!y"or 61tJIJ2 lIJ dianlcter) in oi.y of the VDA ViL- ? 2b T4 A 15. WCV! All DR[i JUeralsluuhicnt SAJDl)JeS JCCVjVLLjj sit. r7 JH O~ 2..? Fly es F FN o A 16- Ll'e1e All cPDide s2aiWs rrccivedot:r PH: X and vWde salt Acs; I c'cil-md ar a PH> 9? OY,'-� ONO R]N.4 17_ Were.. all +C � �1TI�1+1lc},1i1[lelpdtetyoL'b 1 Gf3S.3 �� {l 5utgri) satrt�lcs ��2 OP L-Csidu l chlarim-g Qis ❑moo �'� IS_ Wry the tlutnr iturtlwes listed on Tbrs cuotai.w label_! if ]rt . r�}ltoCe tr I� 26086 3srmple F1'[stt'�raFion (N3tts�t lrr c+olu�rler�d ftnany saln�le{sl iucaaiectl}'�reselvCsrl r»''<�zd>_�adspa�e-) }tullrplj.(s) MA —were ftctived inenfredly yrr� --tved and w= kAjustcd accordul u SM11P1C receivilig uitlt miL ofe Eele onto- MS04. HNO3, HCL NaOH usilig SR H NA jn-& ofprc,-O-vRti NA Ie 1m-c rLlan one prestrr, %hr, is needmL. llleasc note i,t The colriti olz Belo}.&.. NA were reccivcd wire bnhbles >6 mrri i L diatrety. s} `" %ern: recetvtd vtnrb T C t 0_5 ii �'T, (Tf #19 is no) and -vIC1-� s cuurrhglYin sft'U,`le Iecehing will' SOdililll llliaSt tre a_8IOI) v,irh Unique ID: NA C�111t11'tN$, - qua Krax ID; r6360 Wit ' analytical Services, LLC Page 1 of 1 Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 15 of 15 (� aceAnalytical M Deliver To Cathy Dover Pace LELAP Certificate Number: 01955 A2LA Accredited (DoD ELAP-QSM 5.4) Certificate Number: 6429.01 ANALYTICAL RESULTS •:I Pace Analytical Gulf Coast 7979 Innovation Park Dr. Baton Rouge, LA 70820 (225) 769-4900 Report Date 05/07/2023 Report Y223042851 �1��i �1��i �1��i �1��i �1��i �1��i �1��i �1��i �1��i III Project Cabarrus County YD20011 Samples Collected 4/19/23 106 Vantage Point Drive West Columbia, SC 29172 (803)791-9700 Additional Recipients NONE ACCREDITED CERT =- 6429.01 Pace Gulf Coast Report#: 223042851 05/07/2023 17:51 Page 1 of 10 Report#: 223042851 ace k k+y Uh Project ID: Cabarrus County YD20011 Report Date: 05/07/2023 Laboratory Endorsement Sample analysis was performed in accordance with approved methodologies provided by the Environmental Protection Agency or other recognized agencies. The samples and their corresponding extracts will be maintained for a period of 30 days unless otherwise arranged. Following this retention period the samples will be disposed in accordance with Pace Gulf Coast's Standard Operating Procedures. Common Abbreviations that may be Utilized in this Report ND Indicates the result was Not Detected at the specified reporting limit NO Indicates the sample did not ignite when preliminary test performed for EPA Method 1030 DO Indicates the result was Diluted Out MI Indicates the result was subject to Matrix Interference TNTC Indicates the result was Too Numerous To Count SUBC Indicates the analysis was Sub -Contracted FLD Indicates the analysis was performed in the Field DL Detection Limit LOD Limit of Detection LOQ Limit of Quantitation RE Re -analysis CF HPLC or GC Confirmation 00:01 Reported as a time equivalent to 12:00 AM Reporting Flags that may be Utilized in this Report J or I Indicates the result is between the MDL and LOQ J DOD flag on analyte in the parent sample for MS/MSD outside acceptance criteria U Indicates the compound was analyzed for but not detected B or V Indicates the analyte was detected in the associated Method Blank Q Indicates a non -compliant QC Result (See Q Flag Application Report) " Indicates a non -compliant or not applicable QC recovery or RPD — see narrative E Organics - The result is estimated because it exceeded the instrument calibration range E Metals - % diference for the serial dilution is > 10% L Reporting Limits adjusted to meet risk -based limit. P RPD between primary and confirmation result is greater than 40 DL Diluted analysis — when appended to Client Sample ID Sample receipt at Pace Gulf Coast is documented through the attached chain of custody. In accordance with NELAC, this report shall be reproduced only in full and with the written permission of Pace Gulf Coast. The results contained within this report relate only to the samples reported. The documented results are presented within this report. This report pertains only to the samples listed in the Report Sample Summary and should be retained as a permanent record thereof. The results contained within this report are intended for the use of the client. Any unauthorized use of the information contained in this report is prohibited. I certify that this data package is in compliance with The NELAC Institute (TNI) Standard 2009 and terms and conditions of the contract and Statement of Work both technically and for completeness, for other than the conditions in the case narrative. Release of the data contained in this hardcopy data package and in the computer readable data submitted has been authorized by the Quality Assurance Manager or his/her designee, as verified by the following signature. Estimated uncertainty of measurement is available upon request. This report is in compliance with the DOD QSM as specified in the contract if applicable. 6�A;"Z� Authorized Signature Pace Gulf Coast Report 223042851 Pace Gulf Coast Report#: 223042851 05/07/2023 17:51 Page 2 of 10 PaceA;U?v(Uh' Report#: 223042851 Project ID: Cabarrus County YD20011 Report Date: 05/07/2023 Certifications Certification Certification Number A2LA Accredited DoD ELAP-QSM 5.4 6429.01 Alabama 01955 Arkansas 88-0655 Colorado 01955 Delaware 01955 Florida E87854 Georgia 01955 Hawaii 01955 Idaho 01955 Illinois 200048 Indiana 01955 Kansas E-10354 Kentucky 95 Louisiana 01955 Maryland 01955 Massachusetts 01955 Michigan 01955 Mississippi 01955 Missouri 01955 Montana N/A Nebraska 01955 New Mexico 01955 North Carolina 618 North Dakota R-195 Oklahoma 9403 South Carolina 73006001 South Dakota 01955 Tennessee 01955 Texas T104704178 Vermont 01955 Virginia 460215 Washington C929 USDA Soil Permit P330-16-00234 Pace Gulf Coast Report#: 223042851 05/07/2023 17:51 Page 3 of 10 Report#: 223042851 ace k k+y Uh Project ID: Cabarrus County YD20011 Report Date: 05/07/2023 Case Narrative Client: Pace Analytical Services South Carolina Report: 223042851 Pace Analytical Gulf Coast received and analyzed the sample(s) listed on the Report Sample Summary page of this report. Receipt of the sample(s) is documented by the attached chain of custody. This applies only to the sample(s) listed in this report. No sample integrity or quality control exceptions were identified unless noted below. No anomalies were found for the analyzed sample(s). Pace Gulf Coast Report#: 223042851 05/07/2023 17:51 Page 4 of 10 PaceA;U?v(Uh' Lab ID Report#: 223042851 Project ID: Cabarrus County YD20011 Report Date: 05/07/2023 Sample Summary Client ID Matrix Collect Date Receive Date 22304285101 CD-1 s Bubble Strip 4/19/23 15:25 4/28/23 09:47 Pace Gulf Coast Report#: 223042851 05/07/2023 17:51 Page 5 of 10 Report#: 223042851 ace k k+y Uh Project ID: Cabarrus County YD20011 Report Date: 05/07/2023 Detect Summary Results and Detection Limits are adjusted for dilution and moisture when applicable AM20GAX Lab ID Client ID Parameter Units Result Dil. %Moist 22304285101 CD-1 s Hydrogen nM 13 1 NA Pace Gulf Coast Report#: 223042851 05/07/2023 17:51 Page 6 of 10 Report#: 223042851 .n!Ae,744u.4 Project ID: Cabarrus County YD20011 Report Date: 05/07/2023 Sample Results CD-1 s Collect Date 04/19/2023 15:25 Lab ID 22304285101 Receive Date 04/28/2023 09:47 Matrix Bubble Strip I GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/01/2314:51 764935 BDP NA CAS# Parameter 1333-74-0 Hydrogen Result DL LOQ 13 0.49 1.9 Units nM Pace Gulf Coast Report#: 223042851 05/07/2023 17:51 Page 7 of 10 n! Ae '44u.4 Report#: 223042851 Project ID: Cabarrus County YD20011 Report Date: 05/07/2023 General Chromatography QC Summary Analytical Batch Client ID MB764935 LCS764935 LCSD764935 764935 Lab ID 2478932 2478933 2478934 Sample Type MB LCS LCSD Prep Date NA NA NA Analysis Date 05/01/23 14:37 05/01/23 14:08 05/01/23 14:24 Matrix Bubble Strip Bubble Strip Bubble Strip AM20GAX Units nM Spike Result %R Control Spike Result %R RPD RPD Result DL Added Limits%R I Added Limit Hydrogen 1333-74-0 0.49U 1 0.491 121 13 11131 70 - 130 1 121 14 120 6 1 20 Pace Gulf Coast Report#: 223042851 05/07/2023 17:51 Page 8 of 10 ,�aceAnalyficajl 0 c!ient to: 4367 - Pace ❑nal,rflra!'Zcn,irac SDG: 22304851 Pace Analytical Services, LLC. Chai►a of Custody 106 Vantage PM: RWe Record West ColumbaSouth Carolina 29172 ---- Telephone No. (803) 791-9700 FaxNo,{803}791-9111 -� www. acelabs.com cy,s„ t Report to Contact Telephone No. / E-mail Quake No. Pace Analytical Services -West Columbia Catherine S. Dover cathy.dove r®pacelabs.cam Address Sampler's Signature Analysis (Attach list if more space is needed) Page 106 Vantage Point Drive 1 of 1 City Stale Zip Code Lot q Bar Code H (lab use only) West Columbia SC 29172 Printed Name Project Name Cabarrus County LF-Background-YD20011 c a Project Number P.O. No. ° Matrix No of Containers by N K Preservative T pe o Sample ID 1 Description Collection L'OlieCll6n Time �j E �' ` �^ o o d N n rn Cr] O U T. a Y " m m �, = N Remarks 1 Cooler I.D. (Containers tur eaelr sumplo may be combined on one Ilnaj Date(s) (military] C] a UJ Z 6 C N = Z 2 p c N fj a CD-1s 4/19/2023 1525 G X 1 X YD20011-003 I Level 2 with Js/MDLs + excel EDD & NCDEQ EQUIS EDD Turn Around Time Required (Prior lab approval required for wxpsdiled TAT) Sample disposal Possible Hazard Identification (List any known hazards in the remarks) QC Requirements Standard ❑ Rush (Please Specify) 7-10 business days ❑ Retum to Client ❑r Disposal by Lab ❑ Nun -hazardous ❑ Framrnabla ❑ Skin lntanl ❑ S02 prowdad ❑ Unknown 1- Re Inquis d by Dal Time 1. Received by Data Time 2. Relinqu ed y D e Time 2 Received by pal 7irr� 3. Relinquished by Date Time 3. Received by Date Time 4. Relingvished by Date Time 4. Laboratory Received by Date Time Note: All samples are retained for four weeks from LAB USE ONLY Receipt Temp. Temp- Blank receipt unless other arrangements are made Received on Ice [Check] ❑ Y ❑ N ❑Ice Pack ° C ❑ Y 1 ❑N l & " 3 qe 9��f 17 f�3 y.0 Pace Gulf Coast Report#: 223042851 05/07/2023 17:51 Page 9 of 10 (P;a'ceAnalyfical'SAMPLE RECEIVING CHECKLIST IIIIIIINIIIII SAMPLE DELIVERY GROUP 223042851 CHECKLIST YES NO Client PM RIUe Transport Method Samples received with proper thermal preservation? *❑ ❑ 4367 - Pace Analytical Services F®DC Radioactivity is <1600 cpm? If no, record cpm value in notes section. COC relinquished and complete (including samplelDs, collect times, and sampler)? ❑ *❑ ❑ ❑ Profile Number Received By 294833 N/bO ine, DDdie K All containers received in good condition and within hold time? All sample labels and containers received match the chain of custody? *❑ 0 ❑ ❑ Line Item(s) Receive Date(s) 4 - Hydrogen 04/28/23 Preservative added to any containers? ❑ I❑ If received, was headspace for VOC water containers < 6mm? *❑ ❑ Samples collected in containers provided by Pace Gulf Coast? 0 ❑ COOLERS DISCREPANCIES LAB PRESERVATIONS Airbill Thermometer ID: E43 Temp °C None None 166334699417 4.0 NOTES Revision 1.6 Page 1 of 1 Pace Gulf Coast Report#: 223042851 05/07/2023 17:51 Page 10 of 10 (� aceAnalytical M Deliver To Cathy Dover Pace LELAP Certificate Number: 01955 A2LA Accredited (DoD ELAP-QSM 5.4) Certificate Number: 6429.01 ANALYTICAL RESULTS •:I Pace Analytical Gulf Coast 7979 Innovation Park Dr. Baton Rouge, LA 70820 (225) 769-4900 Report Date 05/08/2023 Report Y 223042852 �1��i �1��i �1��i �1��i �1��i �1��i �1��i �1��i �1��i III Project Cabarrus County YD19013 Samples Collected 4/18/23 - 4/20/23 106 Vantage Point Drive West Columbia, SC 29172 (803)791-9700 Additional Recipients NONE ACCREDITED CERT 6429.01 Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 1 of 18 Report#: 223042852 ace k k+y Uh Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Laboratory Endorsement Sample analysis was performed in accordance with approved methodologies provided by the Environmental Protection Agency or other recognized agencies. The samples and their corresponding extracts will be maintained for a period of 30 days unless otherwise arranged. Following this retention period the samples will be disposed in accordance with Pace Gulf Coast's Standard Operating Procedures. Common Abbreviations that may be Utilized in this Report ND Indicates the result was Not Detected at the specified reporting limit NO Indicates the sample did not ignite when preliminary test performed for EPA Method 1030 DO Indicates the result was Diluted Out MI Indicates the result was subject to Matrix Interference TNTC Indicates the result was Too Numerous To Count SUBC Indicates the analysis was Sub -Contracted FLD Indicates the analysis was performed in the Field DL Detection Limit LOD Limit of Detection LOQ Limit of Quantitation RE Re -analysis CF HPLC or GC Confirmation 00:01 Reported as a time equivalent to 12:00 AM Reporting Flags that may be Utilized in this Report J or I Indicates the result is between the MDL and LOQ J DOD flag on analyte in the parent sample for MS/MSD outside acceptance criteria U Indicates the compound was analyzed for but not detected B or V Indicates the analyte was detected in the associated Method Blank Q Indicates a non -compliant QC Result (See Q Flag Application Report) " Indicates a non -compliant or not applicable QC recovery or RPD — see narrative E Organics - The result is estimated because it exceeded the instrument calibration range E Metals - % diference for the serial dilution is > 10% L Reporting Limits adjusted to meet risk -based limit. P RPD between primary and confirmation result is greater than 40 DL Diluted analysis — when appended to Client Sample ID Sample receipt at Pace Gulf Coast is documented through the attached chain of custody. In accordance with NELAC, this report shall be reproduced only in full and with the written permission of Pace Gulf Coast. The results contained within this report relate only to the samples reported. The documented results are presented within this report. This report pertains only to the samples listed in the Report Sample Summary and should be retained as a permanent record thereof. The results contained within this report are intended for the use of the client. Any unauthorized use of the information contained in this report is prohibited. I certify that this data package is in compliance with The NELAC Institute (TNI) Standard 2009 and terms and conditions of the contract and Statement of Work both technically and for completeness, for other than the conditions in the case narrative. Release of the data contained in this hardcopy data package and in the computer readable data submitted has been authorized by the Quality Assurance Manager or his/her designee, as verified by the following signature. Estimated uncertainty of measurement is available upon request. This report is in compliance with the DOD QSM as specified in the contract if applicable. 6�A;"Z� Authorized Signature Pace Gulf Coast Report 223042852 Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 2 of 18 PaceA;U?v(Uh' Report#: 223042852 Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Certifications Certification Certification Number A2LA Accredited DoD ELAP-QSM 5.4 6429.01 Alabama 01955 Arkansas 88-0655 Colorado 01955 Delaware 01955 Florida E87854 Georgia 01955 Hawaii 01955 Idaho 01955 Illinois 200048 Indiana 01955 Kansas E-10354 Kentucky 95 Louisiana 01955 Maryland 01955 Massachusetts 01955 Michigan 01955 Mississippi 01955 Missouri 01955 Montana N/A Nebraska 01955 New Mexico 01955 North Carolina 618 North Dakota R-195 Oklahoma 9403 South Carolina 73006001 South Dakota 01955 Tennessee 01955 Texas T104704178 Vermont 01955 Virginia 460215 Washington C929 USDA Soil Permit P330-16-00234 Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 3 of 18 Report#: 223042852 ace k k+y Uh Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Case Narrative Client: Pace Analytical Services South Carolina Report: 223042852 Pace Analytical Gulf Coast received and analyzed the sample(s) listed on the Report Sample Summary page of this report. Receipt of the sample(s) is documented by the attached chain of custody. This applies only to the sample(s) listed in this report. No sample integrity or quality control exceptions were identified unless noted below. No anomalies were found for the analyzed sample(s). Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 4 of 18 ace k k+y Uh Report#: 223042852 Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Sample Summary Lab ID Client ID Matrix Collect Date Receive Date 22304285201 AMW-1S Water 4/18/23 13:54 4/28/23 13:54 22304285202 AMW-1 D Water 4/18/23 09:20 4/28/23 13:54 22304285203 MW-E deep Water 4/18/23 10:20 4/28/23 13:54 22304285204 MW-E rep Water 4/18/23 11:05 4/28/23 13:54 22304285205 AMW-2d Water 4/18/2312:00 4/28/23 13:54 22304285206 AMW-2s Water 4/18/2313:00 4/28/23 13:54 22304285207 AMW-1s Bubble Strip 4/18/23 08:52 4/28/23 13:54 22304285208 AMW-1d Bubble Strip 4/18/23 09:38 4/28/23 13:54 22304285209 MW-E deep Bubble Strip 4/18/23 10:36 4/28/23 13:54 22304285210 MW-E rep Bubble Strip 4/18/23 11:22 4/28/23 13:54 22304285211 AMW-2d Bubble Strip 4/18/23 12:20 4/28/23 13:54 22304285212 AMW-2s Bubble Strip 4/18/23 13:15 4/28/23 13:54 22304285213 MW-3 Water 4/19/2312:00 4/28/23 13:54 22304285214 MW-A Water 4/19/2313:10 4/28/23 13:54 22304285215 MW-L Bubble Strip 4/19/23 10:06 4/28/23 13:54 22304285216 MW-3 Bubble Strip 4/19/23 12:20 4/28/23 13:54 22304285217 MW-A Bubble Strip 4/20/23 15:20 4/28/23 13:54 Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 5 of 18 k Report#: 223042852 ace k+y Uh Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Detect Summary Results and Detection Limits are adjusted for dilution and moisture when applicable AM23G Lab ID Client ID Parameter Units Result Dil. %Moist 22304285201 AMW-1 S Acetic Acid mg/L 0.67 1 NA 22304285201 AMW-1S Formic Acid mg/L 5.9 1 NA 22304285201 AMW-1S Hexanoic Acid mg/L 0.064J 1 NA 22304285201 AMW-1 S Lactic Acid mg/L 0.50 1 NA 22304285201 AMW-1 S Propionic Acid mg/L 0.101 1 NA 22304285202 AMW-1 D Acetic Acid mg/L 1.2 1 NA 22304285202 AMW-1 D Formic Acid mg/L 5.6 1 NA 22304285202 AMW-1 D Hexanoic Acid mg/L 0.0991 1 NA 22304285202 AMW-1 D Lactic Acid mg/L 0.65 1 NA 22304285202 AMW-1 D Propionic Acid mg/L 0.16J 1 NA 22304285202 AMW-1 D Pyruvic Acid mg/L 0.092J 1 NA 22304285203 MW-E deep Acetic Acid mg/L 3.7,1 10 NA 22304285203 MW-E deep Formic Acid mg/L 60 10 NA 22304285203 MW-E deep Lactic Acid mg/L 0.59J 10 NA 22304285203 MW-E deep Propionic Acid mg/L 0.95J 10 NA 22304285204 MW-E rep Acetic Acid mg/L 3.7J 10 NA 22304285204 MW-E rep Formic Acid mg/L 61 10 NA 22304285204 MW-E rep Propionic Acid mg/L 0.901 10 NA 22304285205 AMW-2d Acetic Acid mg/L 0.55 1 NA 22304285205 AMW-2d Formic Acid mg/L 6.6 1 NA 22304285205 AMW-2d Hexanoic Acid mg/L 0.068J 1 NA 22304285205 AMW-2d Lactic Acid mg/L 0.52 1 NA 22304285205 AMW-2d Propionic Acid mg/L 0.082J 1 NA 22304285206 AMW-2s Acetic Acid mg/L 0.71 1 NA 22304285206 AMW-2s Formic Acid mg/L 6.7 1 NA 22304285206 AMW-2s Hexanoic Acid mg/L 0.077J 1 NA 22304285206 AMW-2s Lactic Acid mg/L 0.56 1 NA 22304285206 AMW-2s Propionic Acid mg/L 0.0991 1 NA 22304285213 MW-3 Acetic Acid mg/L 0.84 1 NA 22304285213 MW-3 Formic Acid mg/L 6.3 1 NA 22304285213 MW-3 Hexanoic Acid mg/L 0.075J 1 NA 22304285213 MW-3 Lactic Acid mg/L 0.68 1 NA 22304285213 MW-3 Propionic Acid mg/L 0.16J 1 NA 22304285214 MW-A Acetic Acid mg/L 1.0 1 NA 22304285214 MW-A Formic Acid mg/L 6.1 1 NA 22304285214 MW-A Hexanoic Acid mg/L 0.12J 1 NA 22304285214 MW-A Lactic Acid mg/L 0.73 1 NA 22304285214 MW-A Propionic Acid mg/L 0.15J 1 NA AM20GAX Lab ID Client ID Parameter Units Result Dil. %Moist 22304285207 AMW-1s Hydrogen nM 14 1 NA Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 6 of 18 k Report#: 223042852 ace k+y Uh Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Detect Summary (Continued) Results and Detection Limits are adjusted for dilution and moisture when applicable AM20GAX Lab ID Client ID Parameter Units Result Dil. %Moist 22304285208 AMW-1 d Hydrogen nM 12 1 NA 22304285209 MW-E deep Hydrogen nM 11 1 NA 22304285210 MW-E rep Hydrogen nM 8.7 1 NA 22304285211 AMW-2d Hydrogen nM 17 1 NA 22304285212 AMW-2s Hydrogen nM 12 1 NA 22304285215 MW-L Hydrogen nM 14 1 NA 22304285216 MW-3 Hydrogen nM 8.2 1 NA 22304285217 MW-A Hydrogen nM 12 1 NA Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 7 of 18 Report#: 223042852 Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Sample Results AMW-1 $ Collect Date 04/18/2023 13:54 Lab ID 22304285201 Receive Date 04/28/2023 13:54 Matrix Water !G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/05/2319:08 765189 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 0.67 0.12 0.50 mg/L 107-92-6 Butyric Acid 0.058U 0.058 0.50 mg/L 64-18-6 Formic Acid 5.9 0.055 0.50 mg/L 142-62-1 Hexanoic Acid 0.064J 0.058 0.50 mg/L 646-07-1 i-Hexanoic Acid 0.056U 0.056 0.50 mg/L 503-74-2 i-Pentanoic Acid 0.061 U 0.061 0.50 mg/L 50-21-5 Lactic Acid 0.50 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.101 0.053 0.50 mg/L 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L AMW-1 D Collect Date 04/18/2023 09:20 Lab ID 22304285202 Receive Date 04/28/2023 13:54 Matrix Water !G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/05/23 20:00 765189 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 1.2 0.12 0.50 mg/L 107-92-6 Butyric Acid 0.058U 0.058 0.50 mg/L 64-18-6 Formic Acid 5.6 0.055 0.50 mg/L 142-62-1 Hexanoic Acid 0.0991 0.058 0.50 mg/L 646-07-1 i-Hexanoic Acid 0.056U 0.056 0.50 mg/L 503-74-2 i-Pentanoic Acid 0.061 U 0.061 0.50 mg/L 50-21-5 Lactic Acid 0.65 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.16J 0.053 0.50 mg/L 127-17-3 Pyruvic Acid 0.092J 0.060 0.50 mg/L Collect Date 04/18/2023 10:20 Lab ID 22304285203 MW-E deep Receive Date 04/28/2023 13:54 Matrix Water AM23G *Results and limits are adjusted for dilution. Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 10 05/05/23 20:51 765189 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 3.7J 1.2 5.0 mg/L 107-92-6 Butyric Acid 0.58U 0.58 5.0 mg/L 64-18-6 Formic Acid 60 0.55 5.0 mg/L 142-62-1 Hexanoic Acid 0.58U 0.58 5.0 mg/L 646-07-1 i-Hexanoic Acid 0.56U 0.56 5.0 mg/L Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 8 of 18 Report#: 223042852 .n!Ae,744u.4 Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Sample Results Collect Date 04/18/2023 10:20 Lab ID 22304285203 MW-E deep Receive Date 04/28/2023 13:54 Matrix Water AM23G (Continued) *Results and limits are adjusted for dilution. Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 10 05/05/23 20:51 765189 LHM NA CAS# Parameter Result DL LOQ Units 503-74-2 i-Pentanoic Acid 0.61 U 0.61 5.0 mg/L 50-21-5 Lactic Acid 0.59J 0.53 5.0 mg/L 109-52-4 Pentanoic Acid 0.56U 0.56 5.0 mg/L 79-09-4 Propionic Acid 0.951 0.53 5.0 mg/L 127-17-3 Pyruvic Acid 0.60U 0.60 5.0 mg/L Collect Date 04/18/2023 11:05 Lab ID 22304285204 MW-E rep Receive Date 04/28/2023 13:54 Matrix Water AM23G *Results and limits are adjusted for dilution. Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 10 05/05/23 21:43 765189 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 3.7J 1.2 5.0 mg/L 107-92-6 Butyric Acid 0.58U 0.58 5.0 mg/L 64-18-6 Formic Acid 61 0.55 5.0 mg/L 142-62-1 Hexanoic Acid 0.58U 0.58 5.0 mg/L 646-07-1 i-Hexanoic Acid 0.56U 0.56 5.0 mg/L 503-74-2 i-Pentanoic Acid 0.61 U 0.61 5.0 mg/L 50-21-5 Lactic Acid 0.53U 0.53 5.0 mg/L 109-52-4 Pentanoic Acid 0.56U 0.56 5.0 mg/L 79-09-4 Propionic Acid 0.901 0.53 5.0 mg/L 127-17-3 Pyruvic Acid 0.60U 0.60 5.0 mg/L AMW-2d Collect Date 04/18/2023 12:00 Lab ID 22304285205 Receive Date 04/28/2023 13:54 Matrix Water G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/06/23 00:18 765189 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 0.55 0.12 0.50 mg/L 107-92-6 Butyric Acid 0.058U 0.058 0.50 mg/L 64-18-6 Formic Acid 6.6 0.055 0.50 mg/L 142-62-1 Hexanoic Acid 0.068J 0.058 0.50 mg/L 646-07-1 i-Hexanoic Acid 0.056U 0.056 0.50 mg/L 503-74-2 i-Pentanoic Acid 0.061 U 0.061 0.50 mg/L 50-21-5 Lactic Acid 0.52 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.082J 0.053 0.50 mg/L Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 9 of 18 Report#: 223042852 .n!Ae,744u.4 Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Sample Results AMW-2d Collect Date 04/18/2023 12:00 Lab ID 22304285205 Receive Date 04/28/2023 13:54 Matrix Water AM23G (Continued) Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/06/23 00:18 765189 LHM NA CAS# Parameter Result DL LOQ Units 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L AMW-2s Collect Date 04/18/2023 13:00 Lab ID 22304285206 Receive Date 04/28/2023 13:54 Matrix Water G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/06/23 01:09 765189 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 0.71 0.12 0.50 mg/L 107-92-6 Butyric Acid 0.058U 0.058 0.50 mg/L 64-18-6 Formic Acid 6.7 0.055 0.50 mg/L 142-62-1 Hexanoic Acid 0.077J 0.058 0.50 mg/L 646-07-1 i-Hexanoic Acid 0.056U 0.056 0.50 mg/L 503-74-2 i-Pentanoic Acid 0.061 U 0.061 0.50 mg/L 50-21-5 Lactic Acid 0.56 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.0991 0.053 0.50 mg/L 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L Collect Date 04/18/2023 08:52 Lab ID 22304285207 AM W-1 s Receive Date 04/28/2023 13:54 Matrix Bubble Strip GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/01/2315:04 764935 BDP NA CAS# Parameter 1333-74-0 Hydrogen Result DL LOQ Units 14 0.49 1.9 nM Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 10 of 18 Report#: 223042852 .n!Ae,744u.4 Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Sample Results AMW-1 d Collect Date 04/18/2023 09:38 Lab ID 22304285208 Receive Date 04/28/2023 13:54 Matrix Bubble Strip AM20GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/01/2315:16 764935 BDP NA CAS# Parameter Result DL LOQ Units 1333-74-0 Hydrogen 12 0.49 1.9 nM Collect Date 04/18/2023 10:36 Lab ID 22304285209 MW-E deep Receive Date 04/28/2023 13:54 Matrix Bubble Strip AM20GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/01/2315:29 764935 BDP NA CAS# Parameter Result DL LOQ Units 1333-74-0 Hydrogen 11 0.49 1.9 nM Collect Date 04/18/2023 11:22 Lab ID 22304285210 MW-E rep Receive Date 04/28/2023 13:54 Matrix Bubble Strip AM20GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/01/2315:41 764935 BDP NA CAS# Parameter Result DL LOQ Units 1333-74-0 Hydrogen 8.7 0.49 1.9 nM Collect Date 04/18/2023 12:20 Lab ID 22304285211 AMW-2d Receive Date 04/28/2023 13:54 Matrix Bubble Strip AM20GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/01/2315:54 764935 BDP NA CAS# Parameter 1333-74-0 Hydrogen Result DL LOQ Units 17 0.49 1.9 nM Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 11 of 18 Report#: 223042852 .n!Ae,744u.4 Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Sample Results AMW-2s Collect Date 04/18/2023 13:15 Lab ID 22304285212 Receive Date 04/28/2023 13:54 Matrix Bubble Strip AM20GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/01/2316:07 764935 BDP NA CAS# Parameter Result DL LOQ Units 1333-74-0 Hydrogen 12 0.49 1.9 nM MW-3 Collect Date 04/19/2023 12:00 Lab ID 22304285213 Receive Date 04/28/2023 13:54 Matrix Water G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/06/23 02:01 765189 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 0.84 0.12 0.50 mg/L 107-92-6 Butyric Acid 0.058U 0.058 0.50 mg/L 64-18-6 Formic Acid 6.3 0.055 0.50 mg/L 142-62-1 Hexanoic Acid 0.075J 0.058 0.50 mg/L 646-07-1 i-Hexanoic Acid 0.056U 0.056 0.50 mg/L 503-74-2 i-Pentanoic Acid 0.061 U 0.061 0.50 mg/L 50-21-5 Lactic Acid 0.68 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.16J 0.053 0.50 mg/L 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L Collect Date 04/19/2023 13:10 Lab ID 22304285214 MW-A Receive Date 04/28/2023 13:54 Matrix Water G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/06/23 02:52 765189 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 1.0 0.12 0.50 mg/L 107-92-6 Butyric Acid 0.058U 0.058 0.50 mg/L 64-18-6 Formic Acid 6.1 0.055 0.50 mg/L 142-62-1 Hexanoic Acid 0.12J 0.058 0.50 mg/L 646-07-1 i-Hexanoic Acid 0.056U 0.056 0.50 mg/L 503-74-2 i-Pentanoic Acid 0.061 U 0.061 0.50 mg/L 50-21-5 Lactic Acid 0.73 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.151 0.053 0.50 mg/L 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 12 of 18 Report#: 223042852 .n!Ae,744u.4 Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 Sample Results Collect Date 04/19/2023 10:06 Lab ID 22304285215 MW-L Receive Date 04/28/2023 13:54 Matrix Bubble Strip AM20GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/01/2316:20 764935 BDP NA CAS# Parameter Result DL LOQ Units 1333-74-0 Hydrogen 14 0.49 1.9 nM MW-3 Collect Date 04/19/2023 12:20 Lab ID 22304285216 Receive Date 04/28/2023 13:54 Matrix Bubble Strip AM20GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/01/2316:32 764935 BDP NA CAS# Parameter Result DL LOQ Units 1333-74-0 Hydrogen 8.2 0.49 1.9 nM Collect Date 04/20/2023 15:20 Lab ID 22304285217 MW�A Receive Date 04/28/2023 13:54 Matrix Bubble Strip AM20GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 05/01/2316:44 764935 BDP NA CAS# Parameter 1333-74-0 Hydrogen Result DL LOQ Units 12 0.49 1.9 nM Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 13 of 18 Report#: 223042852 Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 General Chemistry QC Summary Analytical Batch Client ID MB765189 LCS765189 LCSD765189 765189 Lab ID 2480343 2480344 2480345 Sample Type MB LCS LCSD Prep Date NA NA NA Analysis Date 05/05/23 11:23 05/05/23 12:15 05/05/23 13:06 Matrix Water Water Water AM23G Units mg/L Spike Result %R Control Spike Result %R RPD RPD Result DL Added Limits%R Added Limit Acetic Acid 64-19-7 0.12U 0.12 2.0 2.1 106 70 - 130 2.0 2.1 106 0 20 Butyric Acid 107-92-6 0.058U 0.058 2.0 2.1 106 70 - 130 2.0 2.1 104 3 20 Formic Acid 64-18-6 0.055U 0.055 2.0 2.0 100 70 - 130 2.0 2.0 100 1 20 Hexanoic Acid 142-62-1 0.058U 0.058 2.0 2.1 105 70 - 130 2.0 2.0 102 2 20 i-Hexanoic Acid 646-07-1 0.056U 0.056 2.0 1.8 91 70 - 130 2.0 1.9 94 4 20 i-Pentanoic Acid 503-74-2 0.061 U 0.061 2.0 2.1 105 70 - 130 2.0 2.1 104 0 20 Lactic Acid 50-21-5 0.053U 0.053 2.0 2.3 113 70 - 130 2.0 2.2 112 1 20 Pentanoic Acid 109-52-4 0.056U 0.056 2.0 2.1 107 70 - 130 2.0 2.2 108 1 20 Propionic Acid 79-09-4 0.053U 0.053 2.0 2.1 105 70 - 130 2.0 2.1 107 2 20 Pyruvic Acid 127-17-3 0.060U 0.060 2.0 2.1 105 70 - 130 2.0 2.0 101 4 20 Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 14 of 18 Report#: 223042852 Project ID: Cabarrus County YD19013 Report Date: 05/08/2023 General Chromatography QC Summary Analytical Batch Client ID MB764935 LCS764935 LCSD764935 764935 Lab ID 2478932 2478933 2478934 Sample Type MB LCS LCSD Prep Date NA NA NA Analysis Date 05/01/23 14:37 05/01/23 14:08 05/01/23 14:24 Matrix Bubble Strip Bubble Strip Bubble Strip AM20GAX Units nM Spike Result %R Control Spike Result %R RPD RPD Result DL Added Limits%R Added Limit Hydrogen 1333-74-0 0.49U 0.49 12 13 113 70 - 130 12 14 120 6 20 Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 15 of 18 ace Analytical - Chain of Custody Record 4367 - Paco na!llrjca! Services Pace Analytical Services, LLC. SDG: 223042852 106 Vantage Point Drive PM: RWe West Columbia, South Carolina 29172 telephone No. (803)791-9700 Pax No. (803)791-9111 www.pacelabs.com Client Report to Contact Telephone No. 1 E-mail Quote No. Pace Analylical Services -West Columbia Catharine S. Dever cathy.dover0pacelabs-com Address Sampler's Signature Analysis (Attach list if more space is needed) Page 106 Vantage Point Drive 1 of 2 T City Stale Zip Code Lot N Bar Code West Columbia SC 29172 x Printed Name (lab use only) Project Name Cabe rrus County LP -Units 2 & 3-YD19013 o Project Number P.O. No- No of Containers by Matrix Preservative Ty 3e Sample ID 1 Descripllon Colleclion Collection Time o c o o m m a p m O V T n Y ¢ _ rn Remarks IGooier I-D. iGonlalnan; for each sample may ha com6lnad on one lino) Dates) (military) 43 rA Z D c N 2 = Z o m N a AMW-15 4/18/2023 0835 G X 2 X YD19013-015 AMW-1D 4/1W2023 0920 G X 2 X YD19013-016 MW-E deep 4/18/2023 1020 G X 2 X YD19013-017 MW-E rep 4/18/2023 1105 G X 2 X YD19013-018 AMW-2d 4/18/2023 1200 G X 2 X YD19013-019 AMW-2s 4/18/2023 1300 G X 2 X YD19013-020 1 AMW-1s 4/18/2023 0852 G X 1 X YD19013-021 AMW-1d 4/18/2023 0938 G X 1 X YD19013-022 MW-E deep 4/18/2023 1036 G X 1 X YD19013-023 MW-E rep 4/18/2023 1122 G X 1 X YD19013-024 Turn Around Time Required (Prior lab approval required for expediled TAT) Sample Disposal Possible Hazard Idenlilicalion (List any known hazards in the remarks) QG Requirements PIStandard ❑ Rush (Please Specify) 7-10 business days ❑ Ratu rn to Ctle nl ❑1 Disposal by Lab ❑ Non -Hazardous ❑ Flammaule ❑ Skin Imam ❑ SOS provided ❑ rinknow quish by Dat Tim 1. Received by Date Time 2. Relin e y Da Time � Received by N 1CC,L�4 1 Date Tim 7 3. Relinquished by Date Time 3. Received by�� Date Time 4- Relinquished by Date Time 4. Laboratory Received by Date Time Note: Alt samples are retained for four weeks from LAB USE ONLY Receipt Temp. Temp- Blank receipt unless other arrangements are made I Received on Ice (Check) ❑ Y ❑ N ❑ Ice Pack ° C ❑ Y / ❑N Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 16 of 18 ace Analytical Client a. 4367 pace An2hrflcal Services Pace Analytical Services, LLC. SDG: 223042852 Chair? of Custody 106 Vantage West Columbia, South oCarollrla 29172 int Drive PM: RWP RecordWest No. (803) 791-9700 Fax No. (803) 79, , , , www.Dacefabs.com Cliem t to Contact Telephone No- / E-mail Quote No. Pace Analytical Services -West ColumbiaETGatharine S- Dover calhy.dover@pacaJabs.com ler's Signature Analysis (Attach list if more space is needed) Page 106 Vantage Point Drive of 2 City State Zip Code Lot a Bar Code West Columbia SC 29172 Printed Name (lab use only) Project Name Cabarrus County If-unITS 2 & 3-YD19013 o Project Number P.O_ No. Matrix No of Containers by d c� Preservative Ty J a p 2 Sample ID I Description Collection Collection Time o gp M Z Y (Con,alnars for each sample may be mrnblud an une lino) Dales) ti rp a uy _ O N Remarks / Cooler I.D. (military) a a m AMW-2d 4/18/2023 1220 G X 1 X YD19013-025 AMW-2s 4/18/2023 1315 G X 1 X YD19013-028 MW-3 4/19/2023 1200 G X 2 X YD19013-031 MW•A 4/19/2023 1310 G X 2 X YD19013-032 I- MW-L 4/19/2023 1006 G X 1 X YD19013-035 Ivi MW-3 4/19/2023 1220 G X 1 X YD19013-036 NO MW-A 4/20/2023 1520 G X 1 X YD19013-039 Level 2 report with Js/MDL + excel & NCDEQ EQUIS Tum Around Time Required IPdorlab approval required for expedited TAT) sample Disposal Possible Hazard Identificalion (List any known hazards in the remarks) CC Requirements El Standard ❑ Rush (Please Specilyj 7.10 BUSINESS DAYS ❑fieturn to Client [� Disposal by Lab ❑ Non -Hazardous ❑ Ftemmable ❑ skin „atao ❑ Sos p—Wed ❑ Unknown 1- Rel'nquished by D to Ti 1. Received by Date Time 2- Relic ish y D Ti Received by D t Time 3. Relinquished by Dale Time 3- Received by Date Time 4. Relinquished by Date Time 4- Laboratory Received by Date Time Note: All samples are retained for four weeks from LAB USE ONLY Receipt Temp. Temp. Blank receipt Unless other arrangements are made Received on Ice (Check) ❑ Y ❑ N ❑ Ice Pack ° C ❑ Y / ON Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 17 of 18 (P;a'ceAnalyfical'SAMPLE RECEIVING CHECKLIST IIIIIIINIIIII SAMPLE DELIVERY GROUP 223042852 CHECKLIST YES NO Client PM RIUe Transport Method Samples received with proper thermal preservation? *❑ ❑ 4367 - Pace Analytical Services F®DC Radioactivity is <1600 cpm? If no, record cpm value in notes section. COC relinquished and complete (including samplelDs, collect times, and sampler)? ❑ *❑ ❑ ❑ Profile Number Received By 294833 N/bO ine, DDdie K All containers received in good condition and within hold time? All sample labels and containers received match the chain of custody? *❑ 0 ❑ ❑ Line Item(s) Receive Date(s) 2 - 002, VFA 04/28/23 4- hydrogen Preservative added to any containers? ❑ *❑ If received, was headspace for VOC water containers < 6mm? *❑ ❑ Samples collected in containers provided by Pace Gulf Coast? 0 ❑ COOLERS DISCREPANCIES LAB PRESERVATIONS Airbill Thermometer ID: E43 Temp °C None None 166334699417 4.0 NOTES Revision 1.6 Page 1 of 1 Pace Gulf Coast Report#: 223042852 05/08/2023 13:11 Page 18 of 18 Appendix B NC Notice: This form and arm hijbi-nnrlion anarilable for in;v)eetion (rile/ei Facility Name: d Sampling Date: Sample Collector Name & Position: Gas Meter Type & Serial Number:1 Field Calibration Date & Time: vision of Waste Management - Solid Waste Section Landfill Gas Monitoring Data Form rd to it are "Public• Records"as de/fined in NC General S7anne 132-1. Is such, Ihcsse docmnc•nts arc i nn h , utm person upon request (NC General StanNe 132-6) 1►4 -le �ey4 Gf a!We- Perrni t Number: ,-g — v Z NC Landfill Rule (.0500 or. I600): U Pr���►�2j �? J�.�P������ �-��'I�/ t SUS - — nil Gas Meter Calibration Date: Field Calibration Gas Type (15/15 dif 35/50): Gas Meter Pump Rate: Field Calibration Gas Canister Expiration Date• 0 Ambient Air Temperature:Barometric Pressure (in, or min Hg): Weather Conditions: rrrl 1 Ic/ f 111 Instructions: Under "Location or LFG ell", list monitoring well # or describe monitoring location (e.g., inside field office), Attach a test location ma or drawing. Report methane readings as both % LEL and % CH4 by volume. Convert % CT14 (by volun e) to % LEL as follows: % methane (by volume)/20 = % LEL. *Hydrogen': Sul fide (113S) gas monitoring niaY be required for Construction & Demolition Landfills (CDLFs). See individual permit condirious and/or Facility LFG nionitoring plan. Time of Day Stabilized % LEL • NA INA M®���� NOTE- 1 needed, anach additional data forms to i erJrnle addonal LFG monitoring data !Ocation-s for thefac•ililt'. ACTION LEVELS: Methane: >1.25% b volume (inside structures) AND >5'/o by volume (at facility boundary) Hydrogen Sulfide: > '% by volume (inside structures) AND >4% by volume (at facility boundary) Certification To the best of my knowledge, the are true and correct. I am aware or ec iii ' on including the F rmation reported and statements made on this data submittal and attachments there are significant penalties for making any false statement, representation, I* of a fine and imprisonment. L eR of TITLE Revised — March 6, 2017 NC Notice: This form and anv irJa nunian available /bt• inspection and ai Facility Name: Sampling Sample Collector Name & Position: Gas Meter Type & Serial Number: Field Calibration Date & Time: pion of Waste Management - Solid Waste Section Landfill Gas Monitoring Data Form lu it are 'Public Records"as• delined in NC General Statute 132-1. As such, these docmncnle arc r by arty person upon request (NC General Slatwe 732-6) Field Calibration Gas Type (15/15 c)l35/50): Gas Meter Pump Rate: Ambient Air T t Number: NC Landfill Rule (.0500 or.] 600): Gas Meter Calibration Date: Field Calibration Gas Canister Expiration Date: Pressure (in. or min Hg): Weather Conditions: Instructions: Under "Location or LFG Well", list monitoring well # or describe monitoring location (e.g., inside field office). Attach a test location ma ar drawing- Report methane readings as both % LEL and % CH4 by volume. Convert % C114 (by volut e) to % LEL as follows: % methane (by volume)/20 = % LEL. *Hydrogen Sulfide (H2S) gas monitoring »ury be required for Construction & Demolition Landfills (CDLFs). See individual permit conditions and/or Facility LFG monitoring plan. Location or LPG Well ID S ample Tube Purge Time of Day Time Pumpe (sec) Initial % LEL Stabilized % LEL %CH4 (volume) % 02 (volume) %CO2 (volume) %It2S* (volume) NOTES a v 2 0 a :7�o =5I ]U- U 1 o �,� 20 _ 3b, 1 19 D 2 30 Off 30 0 0 16 3. 13 0 a 30 -2 o a a = Z a o 1 30 �:32 aa a 0 D �I Ufa a O 1 3- 0 NOTE. If needed, attach additional data forms to h chcde additional LFG nionimring data locations for the facility. ACTION LEVELS: Methane: >1.25% by volume (inside structures) AND >5% by volume (at facility boundary) Hydrogen Sulfide: > %, by volume (inside structures) AND >4% by volume (at facility boundary) Certification To the best of my knowledge, the ing'ormation reported and statements made on this data submittal and attachments are true and correct. I am aware th►t thcre,jiire significant penalties for making any false statement, representation, or rf�Alj&� on including the possi `lit a fine and imprisonment. � 1 IGTITLE Revised —March 6, 2017 INSTRUMENT CALIBRATION REPORT Pine Environmental Services LLC 530 Pylon Drive Raleigh, NC 27606 Phone: (919) 713-0008 Pine Environmental Services, Inc. Instrument ID 49522 Description GEM 5000+ Calibrated 2/6/2023 1:26:19PM Manufacturer CES Landtec State Certified Model Number GEM 5000+ Status Pass Serial Number/ Lot G507510 Temp °C 22 Number Location North Carolina Humidity % 25 Department Calibration_ Specifications Group # 1 Range Ace % 0.0000 Group Name HYDROGEN SULFIDE Reading Ace % 3.0000 Stated Accy Pet of Reading Plus/Minus 0.00 Nom In Val / In Val In Type Out Val Out Type Fnd As Lft As 50.00 / 50.00 PPM 50.00 PPM 50.00 50.00 Group # 2 Group Name CARBON MONOXIDE Stated Accy Pet of Reading Nom In Val / In Val In Type Out Val 1000.00 / 1000.00 PPM 1000.00 Range Ace % 0.0000 Reading Ace % 3.0000 Plus/Minus 0.00 Out Type Fnd As Lft As PPM 1,000.00 1,000.00 Group # 3 Group Name OXYGEN Stated Accy Pet of Reading Nom In Val / In Val In Type Out Val Out Type 20.90 / 20.90 % 20.90 % Range Acc % 0.0000 Reading Ace % 3.0000 Plus/Minus 0.00 Fnd As Lft As 20.90 20.90 Dev% Pass/Fail 0.00% Pass Dev% Pass/Fail 0.00% Pass Dev% Pass/Fail 0.00% Pass Group # 4 Range Acc % 0.0000 Group Name Methane Reading Acc% 3.0000 Stated Accy Pet of Reading Plus/Minus 0.00 Nom In Val / In Val In Type Out Val Out a Fnd As Lft As Dev% Pass/Fail 50.00 / 50.00 %volume 50.00 %volume 50.00 50.00 0.00% Pass Group # 5 Range Acc % 0.0000 Group Name Carbon Dioxide Reading Ace % 3.0000 Stated Accy Pet of Reading Plus/Minus 0.00 Nom In Val / In Val In Type Out Val Out Type Fnd As Lft As Dev% Pass/Fail 35.00 / 35.00 %Volume 35.00 %volume 35.00 35.00 0.00% Pass Pine Environmental Services LLC Windsor Industrial Park, 92 North Main Street, Bldg 20, Windsor, NJ 08561, 800-301-9663 www.pine-environmental.com INSTRUMENT CALIBRATION REPORT Pine Environmental Services LLC 530 Pylon Drive Raleigh, NC 27606 Phone: (919) 713-0008 Pine Environmental Services, Inc. Instrument ID 49522 Description GEM 5000+ Calibrated 2/6/2023 1:26:19PM Test Instruments Used Durina the Calibration (As Of Cal Entry Date) Serial Number / Next Cal Date / Test Standard ID Description Manufacturer Model Number Lot Number Last Cal Date/ Ex piration slate Opened Date NC 50 35 NC 50 CH4/35 CO2 Gasco GP 12126 - 31803 CBJ-399-1 2/8/2023 CBJ-3 99-1 NC CO 1000 nc co 1000 h2s 50 Airgas 32278 304402539076 2/1/2023 9/19/2024 1-12S 50 9-19-24 -1 09/19/2024 Notes about this calibration Calibration Result Calibration Successful Who Calibrated Danny Moore All instruments are calibrated by Pine Environmental Services LLC according to the manufacturer's specifications, but it is the customer's responsibility to calibrate and maintain this unit in accordance with the manufacturer's specifications and/or the customer's own specific needs. Notify Pine Environmental Services LLC of any defect within 24 hours of receipt of equipment Please call 800-301-9663 for Technical Assistance Pine Environmental Services LLC Windsor Industrial Park, 92 North Main Street, Bldg 20, Windsor, NJ 08561, 800-301-9663 www.pine-enviromnental.com CERTIFICATION OF CALIBRATION �a No. 66916 Date Of Calibration: 17=Oct-2022 Issued by: QED Environmental Systems Inc. Customer: PINE ENVIRONMENTAL SERVICES LLC PO BOX 943 HEIGHTSTOWN, NJ 08520 US Description: Landtec Gas Analyzer Model: GEMS660 Serial Number: G507510 Accredited Results: IQ En Certificate Number. G507510_9/44984 Methane CH4 fed as % Instrument Reading 9ti Uncertain 5.0 4.9 15..0 14.9 0.42 50.0 49.2 0.66 1.03 Carbon Dioxide CO2 ed Gas 95 instrument Readin % Uncertaini 5 0 4.8 0.43 50.0 .1 14.7 0.71 50.1 1.19 Certified Gas ",i6 Instrument Readin, 20.9 Uncertal g % 1.0 0.25 Gas cylinders are traceable and details can be provided if requested. CH4, CO2 readings recorded at: 30.1 °C/86.1 'F Barometric Pressure: 0970"Hg/28..65 "Hg 02 readings recorded at: 21.2 'C/70.2 `F Method of Test: The analyzer is calibrated in a temperature controlled chamber using a series of reference gases, in compliance with procedure ISP17. The reported expanded uncertainty is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately .95%. The uncertainty evaluation has been carried out in accordance with N/5:T requirements. The calibration results published In this certifj'We were obtained using equipment capable of producing results that are traceable through NISI to the International system or Units (Sl). Cer[Iflcatfon only applies to results shown. This certiricate may not be reproduced other than In full, except with the prior written approval of the issuing laboratory, CA11mli0nIoMaoco; 114 IGCImlence: 114 Nc l oU I Lnl5LNAMT_1.1 www.gedenv.com (800) 624-2026 Info@gedenv.com QED Environmental Systems inc. 2355 Bishop Circle West, Dexter, MI 49130 PPCEERTIFICATIC3N DDF CAL!BRATI4N�; VQ No. 66916 Date .Of Calibration: 17-Oct-2022 Certificate Number: G507510_9/449.84 Issued by: QED Environmental Systems Inc. Non Accredited results: Pressure Transducers inches of water column Transducer Certified (Lew) Reading (Low) Certified (High) Reading (High) Accuracy static 0" 10"I 40." 39:82" 2.0" Differential 0" L 0"1 4" 3.90" 0.7" Barometer mbar Reference Instrument. Reading 0970 mbar 128.65 "14g 0971 mbar 29.66 "Fi Date of Issue : 18 act 2622 A1O ved By Si to ry Craig WPliersorr faboralory inspn6on NC Di:110sion of Waste Nlanagement - Solid Waste Section Landfill Gas Monitoring Data Form 1nrrce•: 17+rz lrvJ�rr rr►JrFte++� .a7or'nut�lun cll►ue•ir •r!►rr a u+r Irrhia Jedc•r1 -if.j. i4j [cfiircr! Jii .1rt'' cic•rn•nr]S►"►rrro- 1; 24 : t. -;rri •Fr rlu•,• ;Ir:rrru,rrns r�r, �!,':1i11 f'►�' !I�" N7 rllr - •lienF+Illy! Cillr17 nf7 ll of r11' f7R)-P0 sun VNI "rtpie- r +!VC Geipei-al Si ant fe•:13 —tj J. i Facility Name:pG{ri' -S, n t SG'_Permit Number' Sampling Datc: Z — 2 .5____ _ NC LandIiII Rufe (.0500 or.1600) Sample Collector Name & Position J Gas \lctei Type & Serial Number• Gem 5,alv 2 �3ct2a Gas Nleter Calihration Date Field Calibration Date & Time- Field Calibration Gas Type (15/15 oF 35/50): Field Calibration Gas Canister Expirehon Datc Gas Meter Pump Rate_ Ambient Air Temperature: AR 0 J3aromeiric Pressure (in, or mm Hg):Z Weather Conditions: 5-r1firmfl Instructions: Under "Location or LFG Well", list monitoring well # or describe monitoring location (e.g., inside field office). Attach a test location man or di -twin . Report methane readings as both °/, LEL and °,b C114 by volume. Convert°i, CH-r (by volun e) to % LEL as follows: % methane (by volume)/20 = % LEL. *HVdrOeeli Sulfide (112S) gas monitoring may be required fin COl1S17'116'Ifon & Demolition Landlills (CDLFY). See individual permit r r.,ndi1iC ►s and/or Facility LFG ntonilorirag plan. Location or LFG well ID S ample Tube Pure b' Time of Day Time Pumpe (see) sec Initial %LEL Stabilized % LEL iu um (plume) ° U� OI (volume) (Golume Volume) (volume) � \UTrS o P 30� 0 Z/.o t 0-1,1 0 — 70 q- 29' 1 0 0U v _ 1 0 LoU lx6wl0 191 U 0 • ; 3 o I- /0� V1 Or 1 10 I r 1� Ot' L D /=0l 9 0 0 ZILO �- v � . bz 4�11 NOTE' l needed. altach additional dato lbrnts to , tclredc. addiliona! LFG monuormg data locations%r the fiwdim. A01On LL; , ELS. Methane: >1.25'%r h volume (inside structures) AND >5'%, by volume (at facility boundary) Hydrogen Sulfide. >1 by volume (inside structures) AND >4% by volume (at fiCility boundary; Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. I am aware that there are significant penalties for making any false statement, representation. or certf ation including the p ity of a fine and imprisonment. •-1 TITLE RevlsFd - rvb,rc�) 6 =on NC Di vision of Waste Manageinent - Solid Waste Section Landfill Gas Monitoring Data Form Notice: Thu., loan trod an tnlorntanon attach -d to it ttre "Puhbc Records"'a relined w NC Genuial5ianne /i2-1 rL mch ihcw do unteucs ut r uivduhle for tn.;p"r•lion -tnd estmnna 'on ht' nor person upon I eque,et AC General Staonc 1 3=-0) Facility Name. Sampling Date, - Sample Collector Name & Position - Gas kleiei Type & Serial Number: Field Calibration Date & Time: Field Calibration Gas Type (15/15 o� 35/50)_ Gas Meter Pump Rate: Permit Number: NC Landfill Rule (.0500 or,1600) Gas Meter Calibration Date Field Calibration Gas Canister Expiration Date, Ambient Air Temperature: Barometric Pressure (in. or min Hg): Weather Conditions: Instructions: Under "Location or LFG Nell", list monitoring well # or describe monitoring location (e.g., inside field office). .attach a test location ma or drawing. Report methane readings as both % LEL and ° CH4 by volume. Convert % CH4 (bv rolrrrr e,+ to % LEL as follows: % methane (by volume)/20 = % LEL. *Hydrogen Sulfide {HAS gas monitoring mar be required for CanSP-11 ion & Demolition Land_/ills WDLFs). See individual permit condir}o�ts and/or Facility LFG monitoring plan. Location or LFG Well ID Sample Tube Purge Time of Day Time Pumpe� (sec) Initial % LEL Stabilized % LEL % CI44 (volume) % p2 (volume) ".� CO2 (volume) 1 [2S� (vulumel NOTES M= Z , ' 10 0-22 i Z l P.A 0- a --, 70 6) D ZO9 � D a o Z1,0 1 !G U 5 2U16F U Z t l-' ZU 20 Q ZIU .TOTE- if needed, attach additional dare forms to tj cl+rdL addthonal LFG monitoring dala locations for die Jacilim. :kCT10r,, L FA ELS Methane: >1.25'%. 6.5 volume (inside structures) AND »°., by volume (a[ }hcility boundary) Hydrogen Sulfide: > '%6 by volume (inside structures) AND >a'% by volume (at facility boundary) Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. I am aware that there are significant penalties for making any false statement, representation, or Ltrrtifrca ' in including the pvssi . ` t} of a fine :rod imprisonment. AT TITLE I/1 SAY Revised — N1carch. 6 201P INSTRUMENT QCI PACKING LIST Description Instrument ID Annual Calibration Date Date Calibrated Landtec GEM5000 2�3`lZa 10-3-zz OPINE www.pine-environmental.com Standard Items Prepared QC chat Received by customer Returned to Pine ✓/ GEM5000 w/ hard case Fabric carry case Manual Quick reference card Charger, AC cord (if applicable) (2) 4' lengths of sample tubing wl filter, housing, and 4 male quick connects / JJ Pressure relief valve (installed in the gas sample line) / (2) Extra hydrophobic filters / (2) spare male quick connects / USB comm. cable with driver _ z LSGAM data logging software Case insert warning / Annual calibration certificate / ProCal calibration sheet Supporting Items CH4 and CO2 calibration gas mix 50 ppm H2S, 1000 ppm CO cal. gas mix 4% Oxygen, balance N2 gas mix Gas regulator, female (0.5 Ipm) Gas regulator, male (0.5 Ipm) Calibration tubing (6" tubing w/ male quick connect) Temperature probe _ '"SDS sheets for included gases must match cylinders with setup "SDS documents provided upon request Prepared by: This packing list is to ensure that everyitem needed to operate the unit was sent and received. Upon QC checked by: receiving a shipment, please fill out the "Received by customer" column. Call Pine within 24 hours of receiving the equipment if any pieces are missing, damaged, or malfunctioning. Thank you for choosing Date:3 Pine Environmental Services LLC PPPP wpm� CERTIWFlrjTION OF CALIBRATION �.• Date Of Calibration: 03-Oct-2022 No, 66916 15Sued by: QED Environmentai Systems Ir:c. Customer: PINE ENVIRONMENTAL SERVICES INC PO BOX 943 HEIGHTSTOWN, NJ 08520 US Description: Landtec Gas Analyzer M0aw: GEM5000 Serial Number: G508.621 Accredited Results: Methane (CH4 Certificate Number: G508621_9/44908 Certifiers Gas % instrument Readin % Uncertain 5.0 I.9 0.42 15,0 )4.9 O.fi6 50.0 - 49.4 1.03 Carbon Dioxide CO2 Certified Gas 36 Instrument Reading (% Uncertaini 5.0 4.7 0.43 15.1 14.7 0.71 50.0 50.4 1.74 Gas cylinders are traceable and details can be provided if requested. CH4, CO2. readings recorded at: 32.0 °C/89.6 'F Barometric Pressure: 0993"Hg/29.32 "Hg 02 readings recorded at: 22.5 °C/72,5 °F Method of Test : The analyzer is calibrated in a temperature controlled chamber using a series of reference gases, in compliance with procedure 15P17. The reported expanded uncertainty is based on o standard uncertainty multiplied by a coverage factor of k=2 Providing a level of confidence of approximately 95%. The uncertainty evaluation has been carried out in accordance: with N1STrequirements. The olibratlan results published in this certificate mere obtained using equipment cap able of producing results that are ttaceabie through NEST to the International System or Units MI. i ertlFieatfan only applies to resuhs shorai. This certificate may not be reyr; kluced other than in full, except with the print written appra+ral of the issuing laboratory. CAhURRIM ]osimx: 114 1W 1eelaoce: T11A Prye 1 ar211,P0151NANIST--1.1 Www,gedenv,.com (800) 624-2026 info@gedenv-cam QED Environmental Systems Inc 23� c 3:.hop Circle West, Dexter, MI 48130 CERTIFICATION OF CALIBRATION r.F . VQED Ca1(hreelp�y Date Of Calibration: 03-Oct-2022 No. 66916 Certificate Number: G308621_9/44908 Issued by: QED Environmental Systems Inc Non Accredited results: Pressure Transducers inches of water column Transdueer Certified Ilvwf Reading (Low) Certifled (High) Reading (High) Atcura� 5tati� 0�F 0,. 40 __+2.a" Differential 39.92 4 3.9fi" 0 7 Barometer Mbar / 29.32 Weof Issue a 05002022 Approved By Signatory 0993 mbar cnris Flemor rimy uspeeim,