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HomeMy WebLinkAbout9209_Wake_NorthWake_Unlined_MSWLF_April23GW_FID1809293_20230623North Wake Unlined Landfill Facility Permit No. 9209-MSWLF-1984 Semi -Annual -Groundwater Sampling Report (April 2023 Sampling Event) Wake County Prepared June 2023 WAKE COUNTY NORTH CAROLI NA Reporting Form Division o Waste Management - Solid Waste Notice: for Nrmctio any murnm an n by and e d are Public Records" as General St m NC32-6). SfaNte 132-1. As such, these tlocumenis are available for inspection and examina0on by any person upon request (NC General Statute 132E). Instructions: Prepare one forth 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, off -site source. pre-existing condition, etc.). Atiaoh a notification table of any groundwater or surface water values that equal or exceed the reporting limits. Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 138.1629 (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 entity submitting data (laboratory, consultant, facility owned: Consultant - CDM Smith. Inc. Contact for questions about data formatting. Include data preparers nano, telephone number and E-mail address: Name: Mathew F. Color Phone: (91913253500 E-mail: colonemfAcdmsmtih.com NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit (.0500 or.1600) Octoher26-24 2I061 aks County -North Wake Ckn:etl Unlined Landfill 19004 Deponie Drive Ralegh, North Carolir 27615 9209-MSWLF- 1984 .1600 Aptl145, 2023 Environmental status: (Check all that apply) InNalteack,round Monitoring ❑X Detection Monitoring Assessment Monitoring ❑X Corrective Action f data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells Methane gas mentioning data Groundwater monitoring data from private water supply wells ® Corrective action data (specify) MNA Sampling Results Leachate monitoring data Surface water monitanno data n Other(specily) Nottticaden attached? No. No groundwater or surface water standards were exceeded. J( 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, analyficai values, NC 2L groundwater standard, NC 2B 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 the methane monitoring points, dates, sample values and explosive methane gas limits. ro me east or my Knowledge, me lntormation reported and statements made on this data submittal and attachments aria true and correct Furthermore, 1 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. I am aware that there are significant penalties for making any false statement, representation, or codification including the possibility of a fine and imprisonment. Mathew F. Color Consultant (919) 325-3500 Affix NC 6400 Glenwood Avenue, Suite 400, Raleigh, North Carolina 27612 I /��.� Facility Representative Address (/ 7 p F-0412 NC PE Firm License Number (If applicable effective May 1, 2009) Revised ','% 1 82009 Smith 5400 Glenwood Avenue, Suite 400 Raleigh, North Carolina 27612 tel: 919 325-3500 June 23, 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 Groundwater Sampling Report North Wake Closed Unlined Landfill Facility Permit Number 9209-MSWLF-1984 Dear Ms. Drummond: CDM Smith Inc. (CDM Smith), on behalf of Wake County (County), is submitting an electronic copy of the April 2023 semi-annual sampling event report. This letter report presents the results of the semi-annual sampling event that was recently completed at the North Wake Closed Unlined Landfill (Site) and constitutes the first semi-annual sampling event for 2023. The groundwater monitoring network consists of the following wells: MW-11 (shallow background well), -11d (deep background well), -511, -6, -6d, -7, -8, -8d, -9, -10, -10d, -22, -23, -23d, -24, -28, -28d, -29d, -30, -31, -31d, -32, -33, -34, -34d, -35, -36, -36d, TB-1a and TB-1a deep. Surface water sampling locations include SW-2, -3, -7, and -8. Field activities, sampling results for all wells and surface water locations, an evaluation of the groundwater corrective action effectiveness, and recommendations are discussed below. Field Activities Groundwater and surface water samples from the Site were collected on April 4-5, 2023, except for MW-22, -24, -30, -31, and TB-1a, which were dry during the April 2023 sampling event. Monitoring well and surface water sample locations are shown on Figure 1. Construction details for each monitoring well are summarized in Table 1. Samples were collected from the monitoring wells by use of a peristaltic pump or disposable, laboratory decontaminated bailers. Groundwater elevations were measured at each well on April 3, 2023, prior to sampling using an electronic water level indicator with an accuracy of 0.01 feet and are presented in Table 1. These groundwater elevations were used to construct potentiometric contours for this sampling event and are shown on Figure 1. The groundwater elevations and potentiometric contours were also used to estimate groundwater velocities at each well as presented in Table 2. WATER+ENVIRONMENT+TRANSPORTATION+ENERGY+FACILITIES , Smith Ms. Jaclynne Drummond June 23, 2023 Page 2 Alternate Source Demonstration On August 17, 2020, CDM Smith submitted an Alternate Source Demonstration (ASD) for the Site on behalf of the County. The purpose of the ASD was to demonstrate that metals exceeding the 15A NCAC 02L .0202 (NC 2L) Groundwater Standards or Interim Maximum Allowable Concentrations (IMAC) are naturally occurring and not related to a release from the landfill. The ASD was prepared using analytical data from the background monitoring wells, MW-11 and -11D, that was collected on a quarterly basis from January 2018 to April 2020 to develop upper tolerance limits (UTLs) for specific analytes that historically exceeded their respective NC 2L Groundwater Standard or IMAC. Based on statistical analysis, a UTL of 6 parts per billion (ppb) was proposed for cobalt and a UTL of 23 ppb was proposed for vanadium. The North Carolina Department of Environmental Quality's Solid Waste Section (SWS) approved these proposed UTLs on August 17, 2020. Sampling Results All groundwater and surface water samples were analyzed by Pace Analytical Services, LLC located in West Columbia, South Carolina, for North Carolina Appendix I volatile organic compounds (VOCs) plus dichlorodifluoromethane and Appendix I metals plus mercury. Samples from monitoring wells MW-51R, -6, -8, -9, -10, -11, -34, -34d, and -36 were also analyzed for natural attenuation parameters (i.e., biochemical oxygen demand, chemical oxygen demand, alkalinity, nitrate, chloride, sulfate, sulfide, total organic carbon, carbon dioxide, methane, ethane, ethene, ferrous iron, volatile fatty acids, and dissolved hydrogen) per the Corrective Action Plan (CAP) and CAP Addendum that were approved by the SWS in March 2010 and on June 10, 2019, respectively. Monitoring wells MW-51R, -34, and -34d were also analyzed for total iron, sodium, and total dissolved solids. The CAP and CAP Addendum are discussed below. In a letter dated May 29, 2018, the SWS stated that all groundwater and surface water samples collected from landfills be analyzed for 1,4-dioxane after July 1, 2018. On June 26, 2019, the SWS approved the removal of 1,4-dioxane from the sampling program for all monitoring wells and surface water locations, with the exceptions of MW-6, -8, and -9, due to two non -detect events (October 2018 and April 2019). Samples were collected from the wells requiring the 1,4-dioxane analysis during the April 2023 sampling event and the analytical results are provided below. The analytical results were reported to the laboratory specific method detection limit (MDL) and are quantifiable at or below the laboratory limit of quantitation (LOQ). All monitoring wells for the Site had detections of analytes above the MDL but below the LOQ that were qualified as estimated or "J" flags. In samples collected from MW-9, the detection of barium had a "D" flag, indicating that the analyte was analyzed at a dilution. In samples collected from MW-6, -10, -34, -34d, and -36, detections of nitrate also 04 Smith Ms. Jaclynne Drummond June 23, 2023 Page 3 had "D" flags. Additionally, detections of methane in MW-5R and -10 and the detection of iron in MW- 5R had "D" flags. In samples collected from MW-6d, the detection of methylene chloride had an "H" flag, indicating that the analyte was analyzed outside of hold time. In samples collected from MW-5R, -6, -8, -9, -10, -11, -34, -34d, and -36, detections of methane had "B" flags, indicating that the analyte was detected in the method blank. Samples collected from MW-34 also had a detection of iron with an "S" flag, indicating a matrix spike/matrix spike duplicate failure. The following list summarizes which analytes were detected above the LOQ at each sample location. Underlined analytes exceeded the NC 2L Groundwater Standard, UTL, or 15A NCAC 02B or North Carolina In -Stream Target Value Surface Water Quality Standard for Class C Waters (NC 2B Surface Water Standards). No "J" flag detections are listed. A complete summary of all detected and estimated concentrations from the April 2012 through the April 2023 sampling events is presented in Table 4. The Laboratory data reports are provided in Appendix A. MW-11 (Shallow Background) Metals: Volatile Organic Compounds: MW-11d (Deep Background) Metals: Volatile Organic Compounds: MW-5R Metals: Volatile Organic Compounds: Barium None Detected Barium None Detected Barium, Cobalt, Nickel None Detected MW-6 Metals: Barium Volatile Organic Compounds: 1,4-Dichlorobenzene, 1,1-Dichloroethane MW-6d Metals: Barium Volatile Organic Compounds: Chloroform, 1,4-Dichlorobenzene, Dichlorodifluoromethane, 1,1-Dichloroethane, cis-1,2-Dichloroethene, Methylene Chloride, Trichloroethene (TCE), Trichlorofluoromethane 0 Smith Ms. Jaclynne Drummond June 23, 2023 Page 4 MW-7 Metals: Barium, Cobalt, Nickel, Zinc Volatile Organic Compounds: Chlorobenzene, Chloroethane, 1,4-Dichlorobenzene MW-8 Metals: Barium, Cobalt, Nickel Volatile Organic Compounds: Benzene, Chlorobenzene, 1,4-Dichlorobenzene, cis-1,2-Dichloroethene, 1,4-Dioxane MW-8d Metals: Barium Volatile Organic Compounds: None Detected MW-9 Metals: Barium, Cadmium, Cobalt, Copper, Lead, Nickel, Thallium, Zinc Volatile Organic Compounds: Benzene, Chlorobenzene, Chloroethane, 1,4-Dichlorobenzene, 1,1-Dichloroethane, cis-1,2-Dichloroethene, 1,4-Dioxane, Vinyl Chloride MW-10 Metals: Barium, Mercury, Zinc Volatile Organic Compounds: 1,4-Dichloeobenzene, 1,1-Dichloroethane, cis-1,2-Dichloroethene, Tetra chloroethene (PCE), TCE, Vinyl Chloride MW-10d Metals: None Detected Volatile Organic Compounds: 1,1-Dichloroethane MW-22 Metals: Dry Volatile Organic Compounds: Dry MW-23 Metals: Barium, Lead, Vanadium Volatile Organic Compounds: None Detected MW-23d Metals: Barium Volatile Organic Compounds: None Detected 04 Smith Ms. Jaclynne Drummond June 23, 2023 Page 5 M W-24 Metals: Dry Volatile Organic Compounds: Dry MW-28 Metals: Barium, Chromium, Vanadium, Zinc Volatile Organic Compounds: None Detected MW-28d Metals: Barium, Vanadium, Zinc Volatile Organic Compounds: None Detected MW-29d Metals: Barium, Chromium, Copper, Zinc Volatile Organic Compounds: None Detected MW-30 Metals: Dry Volatile Organic Compounds: Dry MW-31 Metals: Dry Volatile Organic Compounds: Dry MW-31 d Metals: Barium, Zinc Volatile Organic Compounds: Chloroform MW-32 Metals: Barium, Beryllium, Copper, Vanadium Volatile Organic Compounds: Chloroform TB-1a Metals: Dry Volatile Organic Compounds: Dry TB-1a deep Metals: Barium, Zinc Volatile Organic Compounds: Chloroform 0 Smith Ms. Jaclynne Drummond June 23, 2023 Page 6 MW-33 Metals: Barium Volatile Organic Compounds: None Detected Metals: Barium, Chromium, Zinc Volatile Organic Compounds: Benzene, 1,4-Dichlorobenzene, Dichlorodifluoromethane, 1,1-Dichloroethane, cis-1,2-Dichloroethene, Methylene Chloride, PCE, TCE, Trichlorofluoromethane MW-34d Metals: Barium, Chromium Volatile Organic Compounds: 1,1-Dichloroethane, cis-1,2-Dichloroethene MW-35 Metals: Barium, Zinc Volatile Organic Compounds: Dichlorodifluoromethane, 1,1-Dichloroethane, cis-1,2-Dichloroethene, Methylene Chloride, PCE, TCE, Trichlorofluoromethane MW-36 Metals: Barium, Chromium, Copper, Vanadium Volatile Organic Compounds: 1,4-Dichlorobenzene, 1,1-Dichloroethane, cis-1,2-Dichloroethene, Vinyl Chloride MW-36d Metals: Barium, Copper, Zinc Volatile Organic Compounds: 1,1-Dichloroethane, cis-1,2-Dichloroethene SW-2 Metals: Barium Volatile Organic Compounds: None Detected SW-3 Metals: Barium Volatile Organic Compounds: None Detected SW-7 Metals: Barium Volatile Organic Compounds: None Detected 0 Smith Ms. Jaclynne Drummond June 23, 2023 Page 7 SW-8 Metals: Barium Volatile Organic Compounds: None Detected "J" flags were not included in the previous list, but several sampling locations had "J" flag detections that exceeded the standards. The "J" flag constituents above the standards along with their location are listed below: Antimony: MW-28d and -31d Bis(2-ethylhexyl) Phthalate: MW-29d Vinyl Chloride: MW-8 It is likely that the recent and historic detections of chloroform in wells MW-6d, -24, -31, -31d, -32, TB-1a, and -1a deep are attributed to a release from a municipal water line in the Falls River development and are not related to a release from the Site. In a letter dated March 22, 2012, the SWS approved the County's request to discontinue collecting samples from select wells for herbicide and pesticide analyses during the semi-annual spring sampling event. However, the SWS requested that MW-29d continue to be sampled for bis(2-ethylhexyl) phthalate during spring sampling events due to a detection from the March 2011 event. Bis(2- ethylhexyl) phthalate was detected above the NC 2L Groundwater Standard (3 ppb) at 28.5 ppb in samples collected from MW-29d during the April 2014 sampling event. A confirmatory sample collected from MW-29d during the November 2014 sampling event had an estimated detection of bis(2- ethylhexyl) phthalate at 4.61 ppb, which is above the standard. Bis(2-ethylhexyl) phthalate has been detected as estimated detections below the NC 2L Groundwater Standard in samples collected from MW-29d during the 2018, April 2020, and March 2022 events. Bis (2-ethylhexyl) phthalate was detected as an estimated concentration above the standard in samples collected during the April 2023 event. The concentration trend for bis(2-ethylhexyl) phthalate in MW-29d will continue to be evaluated. An equipment blank was analyzed for quality control. A duplicate sample was also collected for quality control. A trip blank was not analyzed due to an oversight by the sampler. Acetone was detected in the equipment blank as an estimated concentration below the NC 2L Groundwater Standard. The duplicate sample, identified as DUP, was collected from MW-6d, and had similar analyte concentrations as those detected in MW-6d. Table 5 presents a summary of all analytes detected during the April 2023 sampling event that exceeded the NC 2L Groundwater Standards or UTLs. Additional metals samples were collected from monitoring wells MW-23, -28, -28d, and -36 during the April 2023 sampling event for the laboratory to filter and analyze due to elevated turbidity (i.e., greater than 10 Nephelometric Turbidity Units) at the time samples were collected. In samples collected from 04 Smith Ms. Jaclynne Drummond June 23, 2023 Page 8 MW-29d, dissolved antimony was analyzed due to an estimated total antimony detection above the NC 2L Groundwater Standards. Dissolved antimony was also detected in MW-29d as an estimated concentration above the standard. Based on qualitative and quantitative evaluation of current and historic groundwater sampling data, the NC 2L Groundwater Standard and UTL metal exceedances from the April 2023 sampling event were determined to be indicative of naturally occurring background concentrations as opposed to a release from the landfill. Dissolved metal sample results are provided in Table 4 and the laboratory data report is provided in Appendix A. Corrective Action via Air Sparging The SWS expressed concern in May 2008 that VOCs may be migrating beyond the Site property boundary and into Abbott's Creek based on detections above the NC 2L Groundwater Standard in monitoring well MW-9. As a result, the SWS directed the County to install and sample groundwater monitoring wells, one shallow and one deep (i.e., MW-36 and -36d), downgradient of MW-9 to determine if VOCs may be migrating beyond the Site property boundary, possibly discharging into Abbott's Creek. Initial groundwater samples collected from MW-36 and -36d in December 2008 had detections of VOCs above NC 2L Groundwater Standards. Surface water sample locations SW-7 and -8, located on Abbott's Creek, were added to the semi-annual monitoring program in November 2008. Samples collected from SW-7 and -8 since being added to the monitoring program have never had VOCs detected above the NC 2B Surface Water Quality Standards. An Assessment of Corrective Measures Report was submitted to the SWS in accordance with the North Carolina Solid Waste Management Rule 15 NCAC 13B .1635 and approved in December 2009. The SWS approved the selected remedy of monitored natural attenuation paired with in situ remediation by air sparging to address groundwater contamination at the facility. A pilot test was conducted in July and August 2010 near MW-6 and -6d to evaluate the effectiveness of the air sparging remedy and to collect data for the full-scale system design in accordance with the CAP. The pilot test successfully reduced the concentrations of 1,1-dichloroethane and vinyl chloride to below their respective NC 2L Groundwater Standard in MW-6d and vinyl chloride was not detected in samples collected from MW-6 during the October 2010 semi-annual sampling event. The full-scale system was installed in October 2011 and was operational in August 2012. The air sparging system consists of 15 shallow wells screened across saturated saprolite and partially weathered rock and 14 wells screened in the shallow fractured bedrock. In addition to the air sparging wells, the system also consists of an air compressor and control panel that are housed in a secured on -site control building. Routine inspections are performed on the system and a Field Inspection Log completed during each inspection is kept on file at the facility. The system has been off for some wells since the fall 0 Smith Ms. Jaclynne Drummond June 23, 2023 Page 9 2022 sampling event as the County replaces flow and pressure control gauges as part of ongoing system maintenance, which is estimated to be completed prior to the fall 2023 sampling event. The County installed a vacuum extraction system around the perimeter of the Site in January 2002 to prevent offsite migration of soil gas. The air sparging system was designed to work in tandem with the existing perimeter migration control system (PMCS) by recovering air and gas vapors produced by the air sparging system. Since previous work has indicated a relationship between the soil gas and the contaminated groundwater, the installation of the PMCS is likely to further reduce groundwater contaminant concentrations. As discussed in the approved CAP, the vacuum extraction system will be used in conjunction with the air sparging system to reduce VOCs in the bedrock and partially weathered rock between MW-9 and the MW-6 nested pair. As part of the corrective action effectiveness evaluation, contaminant concentration trends for monitoring wells MW-6, -6d, -9, -36, and -36d were evaluated. Total VOC concentration trends for each well are presented on Figures 2 through 6. Trend results for each well are discussed below. Figure 2 presents a total VOC concentration trend analysis for samples collected from MW-6. VOCs in MW-6 significantly decreased after January 2002 when the PMCS was operational and were not detected from November 2004 to April 2007. The total VOC concentration in MW-6 increased in May 2008 to 24 ppb compared to the November 2007 concentration of 14 ppb. The total VOC concentration in MW-6 showed a decreasing trend from May 2008 to April 2018 but has increased since the introduction of the 1,4-dioxane analysis in October 2018. The total VOC concentration in MW-6 has fluctuated since October 2018. Vinyl chloride has not been detected above the laboratory MDL in MW-6 since the April 2013 sampling event. Benzene detections in MW-6, which historically have exceeded the NC 2L Groundwater Standard, have been below the laboratory MDL since April 2013 except for the November 2014 sampling event when it was detected slightly above the standard at 1.1 ppb and October 2018 when it was detected above the MDL at 0.61 ppb. The trend analysis for total VOC concentrations in MW-6d is presented on Figure 3. VOCs were not detected at MW-6d from December 2001 through November 2007. The increase in total VOCs from samples collected during the May 2008 sampling event is a result of reporting "J" flag detections as required by the SWS. VOC concentrations in MW-6d have been below the NC 2L Groundwater Standards since the March 2011 sampling event but show an increasing trend. Figure 4 presents a total VOC concentration trend analysis for samples collected from MW-9 Historically, MW-9 has had the highest concentration of VOCs compared to the other monitoring wells. VOCs were not detected above the NC 2L Groundwater Standards in MW-9 from October 2012 through 04 Smith Ms. Jaclynne Drummond June 23, 2023 Page 10 April 2015. Benzene, 1,4-dichlorobenzene, 1,2-dichloroethane, 1,4-dioxane, and vinyl chloride have recently been detected above their respective NC 2L Groundwater Standards in MW-9. The total VOC concentration trend has been slightly increasing at MW-9 since the October 2018 sampling event. Trend analyses for total VOC concentrations in MW-36 and -36d are presented on Figures 5 and 6, respectively. Vinyl chloride was detected above its NC 2L Groundwater Standard during the October 2020 sampling event for the first time in samples collected from MW-36 since March 2011, and was also detected above the standard from November 2021 through April 2023. Additionally, total VOC concentrations have shown an increasing trend since the March 2021 sampling event, but are expected to decrease when the air sparging system maintenance is complete. No VOCs have been detected above the NC 2L Groundwater Standards in MW-36d since the October 2015 sampling event. Total VOC concentrations in both monitoring wells will continue to be monitored. Additional groundwater samples were collected from MW-5R, -6, -8, -9, -10, -11, and -36 for evaluation of monitored natural attenuation parameters as part of the corrective action program as required by SWS guidelines. Geochemical results are presented in Table 6. The laboratory data for the additional parameters is included in Appendix A. As discussed in the approved CAP, concentrations of some of the natural attenuation data from select wells indicates that environments are present which favor reductive dechlorination; notably, the concentrations of nitrate, ferrous iron, sulfate, and carbon dioxide. The following evidence indicates that one or more mechanisms of natural attenuation and/or reductive dechlorination may be occurring at the site: ■ VOC concentrations in contaminated wells continue to decline; ■ The ratio of parent to daughter compounds continues to decrease over time; ■ Nitrate, ferrous iron, sulfate, and carbon dioxide continue to be detected at concentrations favoring reductive dechlorination; and ■ Concentrations of cis-1,2-dichloroethene continue to be greater than dichloroethene isomers trans-1,2-dichloroethene and 1,1-dichloroethene. Corrective Action via In Situ Bioremediation Injection VOCs that exceed the NC 2L Groundwater Standards, including benzene, 1,4-dichlorobenzene, 1,1- dichloroethane, methylene chloride, PCE, TCE, and vinyl chloride, have been detected in the area of MW-5R, -34, and -34d. MW-5R is located near the Site property line and the MW-34 cluster is located east of MW-5R on the adjacent parcel, more than 900 feet from the air sparging system. The VOC exceedances are likely from the migration of leachate from the Site into the surficial aquifer. 04 Smith Ms. Jaclynne Drummond June 23, 2023 Page 11 In accordance with the CAP Addendum that was approved by the SWS on July 10, 2019, and an injection permit obtained from the Division of Water Quality — Underground Injection Control Program on July 24, 2019, an in situ enhanced anaerobic bioremediation (EAB) injection was completed by adding sodium lactate and emulsified vegetable oil (EVO) substrates through a biobarrier injection system to reduce total VOC concentrations at the property line. Sodium lactate and EVO enhance biologically reducing conditions that favor and support dechlorination of VOCs to non -toxic end products. On August 26-28, 2019, eight injection wells (i.e., NWIW-1 through -8) were installed upgradient of MW-5R, -35, and -34d, as shown on Figure 1. An initial injection of sodium lactate was completed from October 8-16, 2019. A total of 54,181 gallons of a 2.4 percent sodium lactate solution were injected. Post -sodium lactate injection samples were collected 1 month after the injection during the November 2019 semi-annual sampling event. Samples collected from monitoring wells MW-5R, -34, and -34d were analyzed for natural attenuation parameters, sodium, total iron, and total dissolved solids. Analytical results are summarized in Tables 4 and 6. The EVO injection was completed on November 18-30 and December 1-6, 2019, with a 3.3 percent solution of 98 percent LactOil® EVO formulation. A total of 80,751 gallons of the solution was injected. The effectiveness of the EAB injection was evaluated with quarterly sampling of MW-5R, -34, and -34d on February 4, April 8, July 30, and October 15, 2020. A report summarizing the results of the EAB injection was submitted to the SWS on June 23, 2021. Chlorinated VOC data were reviewed to evaluate concentration trends over time and to determine if dechlorination is occurring. Total VOC concentration trends for each well are presented on Figures 7 through 9. Trend results for each well are discussed below. The VOC trend analysis for MW-SR is presented on Figure 7. TCE has never been detected above the NC 2L Groundwater Standard in MW-5R and PCE has never been detected above the MDL, except during the April 2019 sampling event when PCE was detected as an estimated concentration below the standard. Vinyl chloride was the most recent analyte detected above the NC 2L Groundwater Standard (April 2019). The geochemical data indicates reducing conditions to support anaerobic dechlorination at MW-5R, shown by decreasing levels of sulfate, nitrate, DO, and negative values of ORP. Additionally, total VOC concentrations show a decreasing trend since the injection events and VOCs have not been detected above the MDLs since March 2022. The trend analyses for MW-34 and -34d are presented on Figures 8 and 9, respectively. Since the injections, total VOC, PCE, TCE, and 1,1-dichloroethane concentrations have fluctuated. Concentrations of methylene chloride show a decreasing trend and cis-1,2-dichloroethene concentrations have fluctuated in MW-34. Total VOC concentrations in MW-34d have decreased as the reducing conditions at the upgradient biobarrier support dechlorination. 04 Smith Ms. Jaclynne Drummond June 23, 2023 Page 12 Recommendations The County will continue with the semi-annual assessment monitoring program. In addition to sampling for Appendix I metals plus mercury, Appendix I VOCs plus dichlorodifluoromethane, and the Appendix II constituent, bis(2-ethylhexyl) phthalate (sampled at MW-29d only during the spring sampling event), samples collected from MW-5R, -6, -8, -9, -10, -11, -34, -34d, and -36 will continue to be analyzed for natural attenuation parameters during the semi-annual events. MW-6, -8, and -9 will continue to be analyzed for 1,4-dioxane. Following completion of repairs and system maintenance, the air sparging system will continue to operate and the effectiveness of the system will be re-evaluated after the next semi-annual sampling event in the fall of 2023. If you have any questions or require further explanation, do not hesitate to call me at (919) 325-3500. Sincerely, %&4 IVJU- Mathew F. Colone, P.G. CDM Smith Inc. cc: John Roberson, WCSWM Elliott Cornell, WCSWM 04 Table 1 Monitoring Well Construction Summary and Groundwater Elevations April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 DepthDepths DiameterFacility Permit Monitoring Completion Screened Total Number Well Code Date Lattitude Longitude Lithology (feet below Screen, Filter Seal I I I I I TOC) Casing I Interva Interval Interval (inches) ElevalCon Ground% Elevation 9209-MSWLF-1984 MW-5R 1/30/2004 35.91192 78.57159 Regolith 27.5 10.0-25.0 8.0-25.0 6.0-8.0 2 225.28 15.44 209.84 9209-MSWLF-1984 MW-6 March-94 35.91423 78.57122 Regolith 22.0 -- 10.0-20.0 8.0-20.0 6.0-8.0 2 219.80 12.38 207.42 9209-MSWLF-1984 MW-6d 5/1/2001 35.91423 78.57122 Bedrock 65.0 0-45.0 52.0-62.0 50.0-62.0 48.0-50.0 2 218.61 12.76 205.85 9209-MSWLF-1984 MW-7 March-94 35.91098 78.57436 Regolith 21.5 9.0-19.0 7.0-19.0 5.0-7.0 2 234.15 12.45 221.70 9209-MSWLF-1984 MW-8 March-94 35.91078 78.57266 Regolith 21.5 -- 9.0-19.0 7.0-19.0 5.0-7.0 2 226.38 11.56 214.82 9209-MSWLF-1984 MW-8d 1 5/3/2001 35.91078 78.57266 Bedrock 45.0 0-30.0 37.0-42.0 35.0-42.0 29.0-35.0 2 226.16 12.45 213.71 9209-MSWLF-1984 MW-9 March-94 35.91484 78.57273 Regolith 44.0 32.0-42.0 30.0-42.0 28.0-30.0 2 242.69 30.11 212.58 9209-MSWLF-1984 MW-10 4/1/1998 35.91499 78.57494 Bedrock 55.5 43.0-53.0 41.0-53.0 39.0-41.0 2 274.76 45.70 229.06 9209-MSWLF-1984 MW-10d 5/1/2001 35.91499 78.57494 Bedrock 93.0 80.0-90.0 78.0-92.0 75.0-78.0 2 274.54 48.89 225.65 9209-MSWLF-1984 MW-11 October-95 35.90574 78.58251 Regolith 57.0 39.0-54.0 37.0-54.0 35.0-37.0 2 343.63 44.31 299.32 9209-MSWLF-1984 MW-11d October-95 35.90578 78.58248 Bedrock 72.0 64.0-69.0 62.0-69.0 60.0-62.0 2 343.27 44.45 298.82 9209-MSWLF-1984 MW-22 June-97 35.91596 78.57453 Regolith 39.0 27.0-37.0 25.0-37.0 23.0-25.0 2 254.62 35.79 218.83 9209-MSWLF-1984 MW-23 June-97 35.91373 78.57540 Regolith 50.0 38.0-48.0 36.0-48.0 34.0-36.0 2 274.83 47.02 227.81 9209-MSWLF-1984 MW-23d 4/27/1998 35.91373 78.57540 Bedrock 91.0 0-43.0 78.0-88.0 76.0-88.0 74.0-76.0 2 274.89 47.01 227.88 9209-MSWLF-1984 MW-24 June-97 35.91232 78.57546 Regolith 47.5 35.0-45.0 33.0-45.0 31.0-33.0 2 266.64 46.05 220.59 9209-MSWLF-1984 MW-28 4/9/1998 35.91644 78.57439 Regolith 30.0 -- 20.0-30.0 18.0-30.0 16.0-18.0 2 237.89 18.88 219.01 9209-MSWLF-1984 MW-28d 4/22/1998 35.91644 78.57439 Bedrock 51.0 0-28.0 41.0-51.0 39.0-51.0 37.0-39.0 2 238.44 18.90 219.54 9209-MSWLF-1984 MW-29d 4/22/1998 35.91472 78.57572 Bedrock 52.0 0-40.5 47.0-52.0 45.0-52.0 43.0-45.0 2 275.06 43.90 231.16 9209-MSWLF-1984 MW-30 4/14/1998 35.91374 78.57596 Regolith 55.0 40.0-55.0 38.0-55.0 36.0-38.0 2 282.32 51.00 231.32 9209-MSWLF-1984 MW-31 4/2/1998 35.91231 78.57595 Regolith 35.5 -- 25.5-35.5 23.0-35.5 21.0-23.0 2 261.67 33.72 227.95 9209-MSWLF-1984 MW-31d 4/23/1998 35.91231 78.57595 Bedrock 66.0 0-51.0 56.0-66.0 54.0-66.0 52.0-54.0 2 260.92 33.18 227.74 9209-MSWLF-1984 MW-32 4/3/1998 35.91142 78.57564 Regolith 26.0 13.0-23.0 11.0-23.0 9.0-11.0 2 242.99 16.86 226.13 9209-MSWLF-1984 TB-1a 4/7/1998 35.91188 78.57595 Regolith 30.0 -- 20.0-30.0 17.5-30.0 14.0-17.5 2 255.05 28.75 226.30 9209-MSWLF-1984 TB-1a deep 5/7/2001 35.91188 78.57595 Bedrock 62.0 0-23.0 52.0-62.0 50.0-62.0 47.0-50.0 2 256.01 31.00 225.01 9209-MSWLF-1984 MW-33 7/22/1998 35.91077 78.57169 Regolith 28.0 10.0-25.0 8.0-25.0 6.0-8.0 2 222.01 11.30 210.71 9209-MSWLF-1984 MW-34 7/23/1998 35.91192 78.57116 Regolith 28.0 -- 15.0-25.0 13.0-25.0 11.013.0 2 221.96 13.17 208.79 9209-MSWLF-1984 MW-34d 7/23/1998 35.91192 78.57116 Bedrock 58.0 0-38.0 45.0-55.0 43.0-55.0 41.0-43.0 2 222.16 13.56 208.60 9209-MSWLF-1984 MW-35 7/23/1998 35.91322 78.57052 Regolith 28.0 10.0-25.0 8.0-25.0 6.0-8.0 2 223.48 16.36 207.12 9209-MSWLF-1984 MW-36 11/25/2008 35.91491 78.57193 Regolith 40.0 -- 25.0-40.0 23.0-40.0 21.0-23.0 1 2 1 237.40 1 26.79 1 210.61 9209-MSWLF-1984 MW-36d 1 11/25/2008 1 35.91491 1 78.57193 Bedrock 55.0 0-45.0 50.0-55.0 48.0-55.0 45.0-48.0 1 2 1 237.68 1 27.03 1 210.65 Notes: 1. TOC - Top of Casing 2. bgs - Below Ground Surface 3. Latitude and Longitude Coordinates - World Geodetic System 1983 Smith Page 1 of 1 June 2023 Table 2 Summary of Calculated Groundwater Flow Velocities April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Hydraulic Conductivity 9209-MSWLF-1984 MW-5R feet/day (cm/s) 0.33 0.18 =OEM q4.27E-02 0.0233 4.28E-02 0.0241 4.43E-02 0.0235 4.31E-02 0.0257 4.72E-02 0.0233 1.16E-04 9209-MSWLF-1984 MW-6 10.58 0.13 0.0206 1.68E+00 0.0209 1.70E+00 0.0208 1.69E+00 0.0206 1.68E+00 0.0204 1.66E+00 3.73E-03 9209-MSWLF-1984 MW-7 1.15 0.18 0.0257 1.64E-01 0.0261 1.66E-01 0.0256 1.64E-01 0.0257 1.64E-01 0.0255 1.63E-01 4.06E-04 9209-MSWLF-1984 MW-8 3.61 0.18 0.0249 5.00E-01 0.0252 5.06E-01 0.0248 4.98E-01 0.0249 4.99E-01 0.0247 4.96E-01 1.27E-03 9209-MSWLF-1984 MW-9 1.22 0.30 0.0201 8.16E-02 0.0199 8.10E-02 0.0200 8.15E-02 0.0198 8.06E-02 0.0200 8.12E-02 4.30E-04 9209-MSWLF-1984 MW-10 0.509 0.05 0.0168 1.72E-01 0.0171 1.74E-01 0.0171 1.74E-01 0.0172 1.75E-01 0.0174 1.78E-01 1.80E-04 9209-MSWLF-1984 MW-11 5.66 0.13 0.0214 9.31E-01 0.0217 9.44E-01 0.0215 9.35E-01 0.0217 9.46E-01 0.0215 9.35E-01 2.00E-03 9209-MSWLF-1984 MW-22 0.07 0.18 0.0182 7.09E-03 0.0185 7.21E-03 0.0182 7.07E-03 0.0185 7.21E-03 0.0185 7.21E-03 2.47E-05 9209-MSWLF-1984 MW-23 3.59 0.30 0.0196 2.35E-01 0.0198 2.36E-01 0.0197 2.36E-01 0.0198 2.37E-01 0.0198 2.37E-01 1.27E-03 9209-MSWLF-1984 MW-24 0.34 0.30 0.0248 2.81E-02 0.0253 2.86E-02 0.0251 2.84E-02 0.0251 2.85E-02 0.0251 2.85E-02 1.20E-04 9209-MSWLF-1984 MW-36 17.56 0.30 0.0197 1.16E+00 0.0200 1.17E+00 0.0197 1.15E+00 0.0197 1.16E+00 0.0197 1.16E+00 6.19E-03 9209-MSWLF-1984 MW-36D 0.78 0.10 0.0196 1.53E-01 0.0199 1.55E-01 0.0195 1.52E-01 0.0196 1.53E-01 0.0196 1.53E-01 2.75E-04 Notes: 1. cm/s - centimeters per second 2. Hydraulic conductivity and effective porosity values are estimated from previously perfomed slug tests and grain size analyses. 3. The gradient and linear velocity values shown for MW-11 are based on the average of all the listed wells, with the exception of MW-36D. CDM Smith Page 1 of 3 June 2023 Table 2 Summary of Calculated Groundwater Flow Velocities April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Hydraulic Conductivity 9209-MSWLF-1984IMIW-!5R feet/day (cm/s) 0.33 0.18 0.0233 4.27E-02 0.0229 4.20E-02 0.0238 4.36E-02 0.0233 4.27E-02 0.0236 4.33E-021.16E-049209-MSWLF-1984 10.58 0.13 0.0203 1.65E+00 0.0204 1.66E+00 0.0206 1.67E+00 0.0205 1.66E+00 0.0206 1.68E+00 3.73E-03 9209-MSWLF-1984 MW-7 1.15 0.18 0.0253 1.62E-01 0.0256 1.64E-01 0.0257 1.64E-01 0.0256 1.63E-01 0.0257 1.64E-01 4.06E-04 9209-MSWLF-1984 MW-8 3.61 0.18 0.0245 4.92E-01 0.0249 4.98E-01 0.0249 4.99E-01 0.0248 4.98E-01 0.0250 5.01E-01 1.27E-03 9209-MSWLF-1984 MW-9 1.22 0.30 0.0198 8.06E-02 0.0199 8.10E-02 0.0201 8.18E-02 0.0200 8.13E-02 0.0202 8.20E-02 4.30E-04 9209-MSWLF-1984 MW-10 0.509 0.05 0.0173 1.76E-01 0.0169 1.72E-01 0.0170 1.73E-01 0.0169 1.72E-01 0.0171 1.74E-01 1.80E-04 9209-MSWLF-1984 MW-11 5.66 0.13 0.0213 9.28E-01 0.0213 9.27E-01 0.0215 9.36E-01 0.0214 9.30E-01 0.0215 9.37E-01 2.00E-03 9209-MSWLF-1984 MW-22 0.07 0.18 0.0183 7.12E-03 0.0181 7.04E-03 0.0184 7.16E-03 0.0183 7.11E-03 0.0184 7.17E-03 2.47E-05 9209-MSWLF-1984 MW-23 3.59 0.30 0.0199 2.38E-01 0.0197 2.36E-01 0.0197 2.36E-01 0.0197 2.35E-01 0.0198 2.37E-01 1.27E-03 9209-MSWLF-1984 MW-24 0.34 0.30 0.0250 2.83E-02 0.0248 2.82E-02 0.0251 2.84E-02 0.0249 2.83E-02 0.0251 2.85E-02 1.20E-04 9209-MSWLF-1984 MW-36 17.56 0.30 0.0195 1.14E+00 0.0196 1.15E+00 0.0198 1.16E+00 0.0196 1.15E+00 0.0198 1.16E+00 6.19E-03 9209-MSWLF-1984 MW-36D 0.78 0.10 0.0194 1.51E-01 0.0195 1.52E-01 0.0043 3.35E-02 0.0195 1.52E-01 0.0197 1.53E-01 2.75E-04 1 Notes: 1. cm/s - centimeters per second 2. Hydraulic conductivity and effective porosity values are estimated from previously perfomed slug tests and grain size analyses. 3. The gradient and linear velocity values shown for MW-11 are based on the average of all the listed wells, with the exception of MW-36D. CDM Smith Page 2 of 3 June 2023 Table 2 Summary of Calculated Groundwater Flow Velocities April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 ... Linear Velocity M Linear Velocity 9209-MSWLF-1984 MW-512 0.33 0.18 FO.0237rttt� 0.0236 4.33E-02 0.0235 4.32E-02 0.0232 4.26E-02 0.0230 4.22E-02 1.16E-04 9209-MSWLF-1984 MW-6 10.58 0.13 0.0206 1.68E+00 0.0205 1.67E+00 0.0204 1.66E+00 0.0205 1.67E+00 0.0202 1.65E+00 3.73E-03 9209-MSWLF-1984 MW-7 1.15 0.18 0.0257 1.64E-01 0.0256 1.63E-01 0.0256 1.63E-01 0.0257 1.64E-01 0.0253 1.62E-01 4.06E-04 9209-MSWLF-1984 MW-8 3.61 0.18 0.0250 5.01E-01 0.0248 4.97E-01 0.0248 4.97E-01 0.0249 4.99E-01 0.0246 4.93E-01 1.27E-03 9209-MSWLF-1984 MW-9 1.22 0.30 0.0202 8.20E-02 0.0200 8.12E-02 0.0200 8.12E-02 0.0201 8.16E-02 0.0198 8.04E-02 4.30E-04 9209-MSWLF-1984 MW-10 0.509 0.05 0.0171 1.74E-01 0.0168 1.71E-01 0.0172 1.75E-01 0.0175 1.79E-01 0.0174 1.77E-01 1.80E-04 9209-MSWLF-1984 MW-11 5.66 0.13 0.0215 9.37E-01 0.0214 9.30E-01 0.0214 9.32E-01 0.0216 9.41E-01 0.0213 9.27E-01 2.00E-03 9209-MSWLF-1984 MW-22 0.07 0.18 0.0184 7.16E-03 0.0183 7.13E-03 0.0184 7.15E-03 0.0186 7.23E-03 0.0183 7.11E-03 2.47E-05 9209-MSWLF-1984 MW-23 3.59 0.30 0.0198 2.37E-01 0.0194 2.32E-01 0.0198 2.37E-01 0.0202 2.41E-01 0.0200 2.39E-01 1.27E-03 9209-MSWLF-1984 MW-24 0.34 0.30 0.0251 2.85E-02 0.0251 2.84E-02 0.0250 2.83E-02 0.0253 2.86E-02 0.0249 2.82E-02 1.20E-04 9209-MSWLF-1984 MW-36 17.56 0.30 0.0198 1.16E+00 0.0196 1.15E+00 0.0196 1.15E+00 0.0197 1.15E+00 0.0194 1.14E+00 6.19E-03 9209-MSWLF-1984 MW-36D 0.78 0.10 0.0199 1.55E-01 0.0196 1.53E-01 0.0041 3.23E-02 0.0042 3.31E-02 0.0193 1.51E-01 2.75E-04 Notes: 1. cm/s - centimeters per second 2. Hydraulic conductivity and effective porosity values are estimated from previously perfomed slug tests and grain size analyses. 3. The gradient and linear velocity values shown for MW-11 are based on the average of all the listed wells, with the exception of MW-36D. CDM Smith Page 3 of 3 June 2023 Table 3 Water Quality Parameters April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill Permit Number 9209-MSWLF-1984 Facility Permit Number 9209-MSWLF-1984 Monitoring Well Code MW-5R Water Quality Parameters PH Conductivity Temperature Turbidity D. ... (S.U.) (VS/cm) (degrees Celsius) (NTUs) (mg/L) (mVs) 6.58 537 17.4 8 0.68 -66.5 9209-MSWLF-1984 MW-6 6.56 801 16.4 10 6.19 257.3 9209-MSWLF-1984 MW-6d 5.75 158 17.9 2 0.92 439.1 9209-MSWLF-1984 MW-7 6.11 606 16.0 9 2.33 -33.3 9209-MSWLF-1984 MW-8 6.18 639 16.5 9 0.49 59.1 9209-MSWLF-1984 MW-8d 6.03 170 17.3 5 1.43 147.9 9209-MSWLF-1984 MW-9 6.29 943 20.1 8 3.44 -10.6 9209-MSWLF-1984 MW-10 5.52 234 18.0 3 2.23 99.5 9209-MSWLF-1984 MW-10d 6.07 183 18.8 9 1.94 144.4 9209-MSWLF-1984 MW-11 5.99 101 18.4 8 7.01 231.3 9209-MSWLF-1984 MW-11d 5.90 r 108 17.7 5 6.93 190.2 9209-MSWLF-1984 MW-22 Dry 9209-MSWLF-1984 MW-23 5.80 122 16.6 45 7.84 202.0 9209-MSWLF-1984 MW-23d 5.81 170 16.5 8 6.19 202.2 9209-MSWLF-1984 MW-24 Dry 9209-MSWLF-1984 MW-28 5.91 193 17.4 22 7.90 116.2 9209-MSWLF-1984 MW-28d 6.49 72 17.4 28 0.65 -2.4 9209-MSWLF-1984 MW-29d 5.90 138 16.5 8 1 7.74 1 139.5 9209-MSWLF-1984 MW-30 Dry 9209-MSWLF-1984 MW-31 Dry 9209-MSWLF-1984 MW-31d 6.06 173 17.0 74.42 122.4 9209-MSWLF-1984 MW 32 5.18 89 15.8 9 1 3.29 171.4 9209-MSWLF-1984 TB-1a Dry 9209-MSWLF-1984 TB -la deep 5.37 170 16.2 9 3.11 187.3 9209-MSWLF-1984 MW-33 5.91 146 15.1 9 1.68 130.8 9209-MSWLF-1984 MW-34 5.42 152 16.1 9 0.56 190.6 9209-MSWLF-1984 MW-34d 5.86 259 15.8 1 2.23 207.9 9209-MSWLF-1984 MW-35 4.92 44 15.7 7 1.61 195.5 9209-MSWLF-1984 MW-36 5.82 258 17.3 46 1.10 81.5 9209-MSWLF-1984 9209-MSWLF-1984 MW-36d Surface Water Sample SW-2 6.22 6.85 291 125 17.0 18.5 9 4 0.56 8.67 24.9 110.1 9209-MSWLF-1984 SW-3 7.44 145 20.2 2 12.36 110.0 9209-MSWLF-1984 SW-7 7.13 111 19.7 5 10.32 131.6 9209-MSWLF-1984 SW-8 7.06 104 19.7 3 10.40 138.3 Notes: 1. Water quality measurements were collected on April 3-5, 2023. 2. Turbidity readings were recorded at the time samples were collected. 3. µS/cm - Microsiemens per centimeter 4. mg/L - Milligrams per liter 5. ORP - Oxidation -Reduction Potential 6. NTUs - Nephelometric Turbidity Units 7. mVs - Millivolts 8. S.U. - Standard Units 9. DO - Dissolved Oxygen Smith Page 1 of 1 June 2023 Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 0. ,,, 15 1 ,,, 100„ M W-11 25-Apr-12 65.3J 2.37J 3.231 12.1 MW-11 23-Oct-12 80.6J 1.42J 3.66J 5.321 19.7 MW-11 17-Apr-13 901 0.2J 2J 2J 8J 11 11 91 20B MW-11 16-Oct-13 100 0.1J 0.2J 2J iJ 4J 0.5J 0.91 51 15B MW-11 16-Apr-14 170 0.5J 0.2J 4J 6J 18 3J 3J 0.081 40 50B MW-11 12-Nov-14 901 0.2J 0.2J 2J 21 8J 11 11 0.05J 7J 24 MW-11 30-Apr-15 100 0.2J 2J 3J 101 11 2J 0.06J 12J 27 MW-11 15-Oct-15 110 0.3J 0.1J 3J 3J 11 11 0.04J 2J 0.05J 13JB 27 MW-11 21-Apr-16 0.5J 130 0.3J 1 4J 16 2J 2J O.116 181 32 MW-11 1-5ep-16 90J 0.28J 0.54J 2.4J 2.6J 8.3J 1.3J 1.6J 111 20 M W-11 20-Apr-17 61J 1.2J 1.51 11 MW-11 22-Sep-17 45J 2.4J 1.81 3.7J 6.3J MW-11 13-Apr-18 61J 2.1 2.OJ 0.27J 12 MW-11 25-Oct-18 71J 2.2J 3.9J 0.50J 5.11 66 MW-11 (dissolved) 25-Oct-18 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-11 26-Feb-19 57J 2.OJ 1.4J 10 MW-11 25-Apr-19 120 0.30J 3.8J 3.3J 20 2.2J 1.8J 17J 28 MW-11 (dissolved) 25-Apr-19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-11 2-Jul-19 170 0.70 5.1 7.4 25 4.1 4.1 33 45B MW-11 (dissolved) 2-Jul-19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-11 7-Nov-19 59 2.1J 4.1 0.66J 0.48 5.6 25 MW-11 (dissolved) 7-Nov-19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-11 22-Jan-20 87 0.27J 3.7J 2.lJ 12 1.9 1.5J 3.1 9.2 21 MW-11 (dissolved) 22-Jan-20 NA NA NA NA NA NA NA NA NA NA NA NA NA NA M W-11 9-Apr-20 55 2.1 7.3J M W-11 15-Oct-20 55 1.5J 10 MW-11 31-Mar-21 52 2.1 2.6J 5.5J M W-11 11-Nov-21 47 5.5J MW-11 31-Mar-22 53 1.7J 0.45J 3.6J 7.9J M W-11 13-Oct-22 45 1.4J 4.1J M W-11 5-Apr-23 50 1.1 5.5J MW-lld 26-Apr-12 0.247J 44.2J 3.04J 9.68JB 3.31J 2.05J 4.62J MW-lld 24-Oct-12 43.7J 0.375J 2.40J 2.53J 5.10J MW-lld 18-Apr-13 0.4J 50J 0.11 2JB 0.2J 1J 0.6J 4JB MW-lld 17-Oct-13 0.61 0.61 50J 0.3J 1J 0.2J 1J 0.02J 0.6J 2J 2JB MW-lld 17-Apr-14 300 2.1 0.2J 15 13 56 11 91 0.2J 99 88 MW-lld 13-Nov-14 150 0.7J 0.11 5J 4J 18 4J 1 0.07J 37 35 MW-lld 29-Apr-15 0.61 0.51 60J 0.1J 0.11 2J 0.61 1 0.6J 0.91 5J 8J MW-lld 15-Oct-15 0.4J 901 0.3J 0.11 1 2J 91 2J 0.05J 2J 14JB 16 MW-lld 21-Apr-16 0.3J 60J 2J 0.3J 4J 0.5J 2J 12 MW-lld 1-Sep-16 0.43BJ 45J 0.076J 1.2J 2.1J 0.25J 0.75J 2.7J 9.2JB MW-lld 20-Apr-17 48J 2.2J 2.2J 2.2J 5.OJ MW-lld 22-Sep-17 45J 2.8J 1.6J 3.3J 5.1J MW-lld 12-Apr-18 43J 5.8J 2.8J 4.41 MW-lld 23-Oct-18 46J 25 13J 4.2J MW-lld 25-Feb-19 46J 7.OJ 3.4J 3.6J MW-lld (dup) 25-Feb-19 45J 9.91 4.9J 4.OJ MW-lld 25-Apr-19 46J 5.OJ 2.2J 2.8J MW-lld 2-Jul-19 90 0.42 4.1J 2.5J 12 1.8 2.4J 17 18B MW-lld (dissolved) 2-Jul-19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-lld 5-Nov-19 43 2.1 2.6J 0.29J 1.91 13B MW-lld (dup) 5-Nov-19 44 2.5J 2.1J 0.26J 1.8J 11B MW-lld 21-Jan-20 0.65J 46 2.8J 2.1J 0.29J 8.41 MW-lld (dup) 21-Jan-20 0.86J 48 3.4J 2.1J 0.37J 9.5J MW-lld 8-Apr-20 44 0.18J 5.3 1.1 2.8J 9.91 MW-lid 13-Oct-20 0.841 45 0.371 3.OJ 12 MW-lid 31-Mar-21 0.661 46 0.401 3.213J 4.61 0.25J 1.41 10 MW-lid 9-Nov-21 44 1.91 3.5J MW-lid 30-Mar-22 44 2.5J 1.7J 3.41 MW-lid 12-Oct-22 43 7.3 3.9J 2.8J MW-11d 5-Apr-23 42 1.91 3.9J CDIN Page 1 of 31 June 2023 Smith Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 In 24-Apr-12 0.411J 97.31 2.79J ,,, 15 1 100 2.47J 0.170J ,,, 4.28.1 MW-5R MW-5R 22-Oct-12 99.31 1.82J 3.61J 0.114J 23.9 MW-5R 17-Apr-13 801 0.081 2J 0.31 1 0.11 5J13 MW-5R 16-Oct-13 90J 0.051 11 0.51 0.41 3J 0.11 5J13 MW-5R 16-Apr-14 80J 0.1 0.1 0.21 0.5J iJ 0.21 21 5J13 MW-5R 12-Nov-14 80J 2J 0.21 21 0.31 6J13 MW-5R 30-Apr-15 70J 0.11 0.81 0.11 11 0.11 4.1 MW-5R 15-Oct-15 110 0.2J 7J 0.81 2J 0.61 0.04.1 4J 0.11 6.1 MW-5R 21-Apr-16 60J 0.071 11 0.21 0.4J 11 0.11B 2.1 MW-5R 14-Sep-16 79J 0.061 1.7J 0.45113 0.046JB 2.4J 0.080.1 1.11 5.3JB MW-5R 20-Apr-17 71J 1.5J MW-5R 20-Sep-17 430 13 1.71 1.4J 5.8.1 MW-5R 11-Apr-18 76J 1.4J 1.5J 2.6.1 MW-5R 24-Oct-18 84J 2.1J 3.3.1 MW-5R 22-Apr-19 68J 0.231 MW-5R 6-Nov-19 130 2.2J 2.1 5.7 15 MW-5R 9-Apr-20 300 0.20.1 0.131 3.4J 290 2.9J 0.52J 100 0.51 4.1 51 MW-5R (dissolved) 9-Apr-20 NA NA NA NA NA NA 390 NA NA NA 140 NA NA 0.32.1 NA MW-5R 15-Oct-20 1.31 170 0.43 0.231 18 93 8.3 3.4 18 1.1 0.18.1 16 22 MW-5R (dissolved) 15-Oct-20 NA NA NA NA NA 91 NA NA NA NA NA NA NA NA NA MW-5R 31-Mar-21 64 0.15.1 4.9J 75 1.5J 0.52J 12 2.7J 11 MW-5R 11-Nov-21 84 76 17 6.5.1 MW-5R 30-Mar-22 40 0.15.1 39 1.9J 0.26J 7.9 4.3.1 MW-5R (dissolved) 30-Mar-22 NA NA NA NA NA NA 19 NA NA NA NA NA NA NA NA NA MW-5R 12-Oct-22 85 55 15 MW-5R 4-Apr-23 68 0.16.1 36 0.39J 9.0 2.9J 2.6.1 MW-6 24-Apr-12 0.244J 182 3.49J 54.9 8.45J 2.18J 0.134.1 117 MW-6 22-Oct-12 258 0.148J 1.59J 80.4 15.1J MW-6 17-Apr-13 100J 0.05.1 1.6 35 4J 0.17.1 6J 0.1 9JB MW-6 16-Oct-13 90J 0.04J 0.31 34 2J 0.02.1 5J 2.1 0.2J 3J 5JB MW-6(dup) 16-Oct-13 90.1 0.21 0.6J 35 2J 0.04J 6J 2.1 0.2J 3J MW-6 16-Apr-14 0.21 60J 0.10J 0.81 11 18 1 0.21 4J 0.1 2J 8JB MW-6(dup) 16-Apr-14 60J 0.071 0.7J 1J 18 2J 0.21 4J 0.2J 3J 8JB MW-6 12-Nov-14 0.81 310 49 11 0.02.1 15J 2.1 0.1J 2JB MW-6 30-Apr-15 70J 0.06.1 0.1J 25 11 0.08.1 4J 0.1J 3.1 MW-6 14-Oct-15 230 0.2.1 32 4J 0.03.1 13J 2.1 0.1 MW-6 20-Apr-16 70J 0.04J 8.1 0.5J 0.03.1 1 1.1 0.08.1 MW-6(dup) 20-Apr-16 70J 0.1 7.1 0.6J 0.03.1 1 1.1 0.07.1 MW-6 14-Sep-16 0.191E 0.29J 210 0.131 19 2.1JB 0.032JB 9.1 1.1J 0.084.1 1.2J 6.OJB MW-6 20-Apr-17 120 2.5J 8.3J 0.98.1 0.40 4.2J MW-6(dup) 20-Apr-17 130 2.6J 8.2J 1.OJ 0.41 4.8J 21 MW-6 21-Sep-17 160 5.3.1 2.2J 7.6J MW-6 12-Apr-18 130 0.14J 7.9J 4.6J MW-6 24-Oct-18 240 0.13.1 1.1 18 1.5J 6.9J MW-6 22-Apr-19 120 0.17.1 0.13.1 19 0.17.1 4.5J MW-6 7-Nov-19 270 0.18.1 67 1.6J 0.1613.1 18 2.5J 0.281 6.4.1 MW-6(dissolved) 7-Nov-19 NA NA NA NA NA NA 77 NA NA NA NA NA NA 0.321 NA NA MW-6 7-Apr-20 130 0.49 0.25.1 8 20 5.5 1.6 0.19.1 6.4 5.2 8.6.1 MW-6 15-Oct-20 160 0.14J 33 8.5 0.201 2.61 MW-6 31-Mar-21 94 0.32.1 0.17.1 3.8J 23 2.31 0.88J 0.19.1 3.8J 3.8J 4.41 MW-6(dissolved) 31-Mar-21 NA NA NA NA NA NA 25 NA NA NA NA NA NA NA NA NA MW-6 10-Nov-21 230 0.24.1 9.0 2.2J 7.9 MW-6 29-Mar-22 220 0.17.1 11 1.7J 0.14J 7.0 1.7J MW-6 11-Oct-22 270 0.14J 5.1 2.1J 7.2 MW-6 5-Apr-23 140 2.8J 4.0J 1.31 0.25J 0.16J 3.31 3.21 2.6J CDM Smith Page 2 of 31 June 2023 Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Ln 26-Apr-12 1.591 72J 5.68J ,,, 7.24JB 15 2.37J 1 100 2.61J 41 ,,, 6.97.1 MW-6d MW-6d (dup) 26-Apr-12 1.22J 66J 5.531 6.45JB 2.10J 2.20J 3.78.1 5.88.1 MW-6d 23-Oct-12 1.21J 2.84.1 71.1.1 0.407J 4.831 2.83.1 2.11J 3.59.1 6.02.1 MW-6d 18-Apr-13 3.11 80J 0.11 0.5.1 4J 0.91 3J 0.4.1 21 8JB MW-6d (dup) 18-Apr-13 2.81 70J 0.09.1 0.4.1 4J 0.8J 3J 0.4.1 21 6J13 MW-6d 17-Oct-13 6.9 80J 0.11 0.5.1 4J 1.1 4J 0.6J 0.03.1 31 31 7J13 MW-6d 17-Apr-14 1.21 60J 0.11 0.1J 4J 1.0.1 2J 0.3.1 21 61 7J13 MW-6d 12-Nov-14 1.21 60J 0.11 0.2.1 3J 1.1 2J 0.3.1 21 4J13 MW-6d 30-Apr-15 1.71 0.6J 50J 0.08.1 0.1J 4J 0.91 2J 0.2.1 21 31 4.1 MW-6d (dup) 30-Apr-15 2.11 80J 0.05.1 0.2.1 4J 0.91 2J 0.3.1 0.05.1 21 31 6J13 MW-6d 15-Oct-15 1.11 60J 0.11 0.2.1 4J 0.6J 2J 0.4.1 0.04.1 3J 21B 6.1 MW-6d 20-Apr-16 0.41 50J 0.07.1 0.1J 4J 0.6J 2J 3J 4.1 MW-6d 12-Sep-16 1.01 65J 0.21.1 4.4J 0.85J 6.6JB 1.7J 2.41 0.341 4.7J 15 MW-6d 20-Apr-17 51J 2.6J 2.41 1.6J 2.6J 9.1J MW-6d 22-Sep-17 0.66.1 33J 4.2J 3.1J 4.1J 6.3.1 MW-6d 13-Apr-18 1.01 41J 3.8J 1.4J 7.6.1 MW-6d 24-Oct-18 31J 7.9J 2.41 3.5J MW-6d 23-Apr-19 57J 0.15.1 8.2J 5.31 0.51J 2.9J 8.2J 6.5.1 MW-6d 6-Nov-19 0.55.1 70 0.81 4.41 3.5J 0.39J 2.2J 3.5J 16 MW-6d 7-Apr-20 0.75.1 69 0.36.1 4.41 2.41 0.39J 1.91 9.5.1 MW-6d 13-Oct-20 2.8 130 0.25.1 3.4J 1.5J 0.33J 1.7J 19 MW-6d 31-Mar-21 0.781 85 0.17.1 4.2J 2.1J 0.25J 1.6J 3.OJ 8.5.1 MW-6d 10-Nov-21 32 0.16.1 0.20.1 3.2J 0.097J 3.2J 2.5.1 MW-6d 29-Mar-22 27 3.7J 1.1 1.7J 2.8J MW-6d 11-Oct-22 31 2.OJ 2.9J MW-6d 5-Apr-23 31 3.7J 3.1J MW-6d (dup) 5-Apr-23 31 3.7J 3.1J MW-7 26-Apr-12 50.3J 0.8051 13.3 27.1 10.76 4.04J 10.91 3.63J 7.24J 13.9 MW-7 22-Oct-12 80.7J 29.6 30.8 37.4 6.69J 11.5J 2.02J 0.152J 24.2J 24.1 MW-7 16-Apr-13 80.1 0.5J 0.6J 35 27 61 9.1 0.18.1 13J 2J 0.21 24J 25B MW-7 16-Oct-13 60J 0.1J 0.61 5J 37 11 1.1 0.04.1 12J 3J 12J 11B MW-7 16-Apr-14 50J 0.2J 1.1 101 46 19 3.1 0.04.1 17J 3J 0.091 23J 40B MW-7 11-Nov-14 0.5.1 70J 0.4J 0.7J 23 26 45 7.1 0.28 13J 2J 0.21 5J 22 MW-7 30-Apr-15 60J 0.11 0.91 5J 48 11 2.1 0.04.1 17J 0.08J 33 MW-7 14-Oct-15 40J 0.1J 0.4J 7J 30 10 2.1 0.02.1 10J 1J 0.05J 31 MW-7 20-Apr-16 40J 0.06J 1.0 2J 52 7J 2.1 0.03.1 17J 2J 11 MW-7 13-Sep-16 0.24.1 44J 1.6 1.4J 41 5.5JB 1.1J 12J 4.OJ 13 MW-7 18-Apr-17 34J 0.13J 0.83J 6.1J 31 30 16 0.037J 9.2J 8.11 7.4J MW-7 18-Sep-17 0.52.1 27J 23 1.11 6.8J MW-7 11-Apr-18 41J 1.5 3.7J 32 7.6J 1.1J 111 5.7J 29 MW-7(dissolved) 11-Apr-18 NA NA NA NA NA NA 31 NA NA NA NA NA NA NA NA MW-7 25-Oct-18 52J 1.3 3.1 34 22 8.6.1 101 8.6J 30 MW-7 (dissolved) 25-Oct-18 NA NA NA NA NA NA 37 NA NA NA NA NA NA NA NA MW-7 24-Apr-19 35J 17 6.4J 12 MW-7 4-Nov-19 46 0.381 0.84 13 27 38 10 0.17131 8.9 0.261 0.181 26 24B MW-7 8-Apr-20 48 0.451 3.8J 41 9.8 2.8 11 5.7 41 MW-7 (dissolved) 8-Apr-20 NA NA NA NA NA NA 44 NA NA NA NA NA NA NA NA MW-7 14-Oct-20 40 0.301 35 1.4J 9.1 9.11 MW-7 31-Mar-21 46 0.371 3.2J 47 10 2.5 13 8.1 17 MW-7 (dissolved) 31-Mar-21 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-7 9-Nov-21 28 0.20J 20 0.29J 7.0 MW-7 30-Mar-22 32 34 3.2J 10 5.41 M W -7 12-Oct-22 29 40 10 2.91 MW-7 4-Apr-23 34 0.42.1 32 8.5 16 CDM Smith Page 3 of 31 June 2023 Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 In ,,, 15 1 100 ,,, MW-8 24-Apr-12 0.937J 41.3.1 1.21J 3.19J 1.83.1 515 MW-8 22-Oct-12 41.8.1 0.146.1 0.404J 1.20J 2.76J 1.97.1 MW-8 17-Apr-13 0.8.1 50J 0.08.1 2J 1.1 0.03.1 4J 9J13 MW-8 16-Oct-13 50J 0.1J 0.2.1 2J 2.1 41 MW-8 16-Apr-14 50J 0.07.1 11 1.1 51 51 107 MW-8 12-Nov-14 50J 0.6J 0.4.1 51 51B MW-8 30-Apr-15 801 0.11 0.1J 4J 2.1 2J 0.2.1 71 14 MW-8 15-Oct-15 801 0.08.1 0.1J 2J 2.1 0.3J 0.04.1 61 6.1 MW-8 21-Apr-16 70J 0.8J 2.1 0.02.1 6J 0.05J13 6.1 MW-8 14-5ep-16 65J 0.13.1 1.9.1 0.27J13 6.6J 2.9J 8.5JB MW-8 20-Apr-17 61J 4.9J 1.81 4.7.1 MW-8 18-5ep-17 73J 0.14J 0.85J 4.6J 3.01 5.7.1 M W -8 12-Apr-18 65J 4.2.1 5.2J 4.5.1 MW-8 24-Oct-18 71J 2.71 5.OJ 7.0.1 MW-8 22-Apr-19 110 1.1 9.4J 0.11.1 8.2J 2.6J 120 MW-8 (dup) 22-Apr-19 110 9.5J 8.1J 2.5J 5.6.1 MW-8 7-Nov-19 48 6.4 1.61 2.5J 0.326 5.4 6.0 12 MW-8 (dissolved) 7-Nov-19 NA NA NA NA NA NA 1.5.1 NA NA NA NA NA NA NA 2.6J NA MW-8 9-Apr-20 43 2.5J 4.8J 8.4.1 M W -8 15-Oct-20 81 6.6 8.1 5.8.1 MW-8 31-Mar-21 63 0.63 13 2.3.1 3.1 0.51J 6.4 8.9 11 M W -8 10-Nov-21 95 4.7.1 8.4 5.1J MW-8 29-Mar-22 86 8.8 11 1.41 5.6.1 MW-8 11-Oct-22 110 1.4J 11 1.4J 12 0.161 2.6J 5.9.1 MW-8 5-Apr-23 90 2.1 9.8 9.9 5.7.1 MW-8d 26-Apr-12 1.63J 34.5.1 11B 2.82J 4.15.1 7.52.1 MW-8d 24-Oct-12 1.591 30.6.1 0.481 5.46J 3.21.1 4.79.1 9.99.1 MW-8d 18-Apr-13 0.6J 20J 4J 0.3.1 11 0.2.1 11 0.061 2JB MW-8d 17-Oct-13 40J 0.2J 0.3.1 6J 1.1 6J 1.1 0.03.1 2J 7J MW-8d 17-Apr-14 0.9.1 20J 0.1J 4J 0.4.1 2J 0.3.1 0.8J 7J 5JB MW-8d 12-Nov-14 1.01 20J 4J 0.3.1 2J 0.3.1 0.91 2JB MW-8d 30-Apr-15 2.5J 0.61 20J 0.1J 1 0.4.1 11 0.4.1 11 2J 4.1 MW-8d 15-Oct-15 0.2.1 20J 3J 0.06J 0.05.1 0.5J 1JB MW-8d 21-Apr-16 20J 1 0.5J MW-8d 14-5ep-16 16J 1.7J 0.60JB 0.047JB 0.72J 4.8J 2.OJB MW-8d 20-Apr-17 19.1 2.6J 4.1 4.OJ 3.1J MW-8d 18-5ep-17 16J 2.9J 3.1 MW-8d (dup) 18-5ep-17 17J 3.2J 2.8J MW-8d 12-Apr-18 17J 3.5J MW-8d 23-Oct-18 18J 6.5J 2.2J 4.4J MW-8d (dup) 23-Oct-18 17J 6.1 2.OJ 4.5J MW-8d 23-Apr-19 17J 4.OJ 3.9J MW-8d 6-Nov-19 21 0.22.1 3.9J 3.2J 1.4J 3.9J 14 MW-8d 8-Apr-20 0.50.1 28 0.25.1 4.5J 0.45J 5.81 MW-8d 13-Oct-20 1.3J 25 0.55 3.7J 1.7J 0.25J 3.9J 15 MW-8d 31-Mar-21 1.51 35 0.21.1 4.8J 3.2J 1.5 1.1 6.1 8.41 MW-8d (dup) 31-Mar-21 2.6 35 0.23.1 6.9 4.7J 1.8 2.5J 8.4 12 MW-8d 10-Nov-21 16 3.1J 4.2J MW-8d 29-Mar-22 17 3.6J 4.1 MW-8d 11-Oct-22 3.2.1 3.51 MW-8d 5-Apr-23 16 3.1J 4.01 CDIN Page 4 of 31 June 2023 Smith Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 MW-9 25-Apr-12 176 0.220J 5.68J 4.81J 2.72J 13.5 MW-9 23-Oct-12 5.17J 210 0.711J 4.13 19.7 6.96J 17.1 27.2 3.41J 7.491 0.5211 iliiiii§ 141 MW-9 17-Apr-13 160 0.31B 2 3J 41 4J 4J 4J 0.3.1 8J 27B MW-9 16-Oct-13 120 0.2J 1.1 2J 0.41 2J 1J 2J 0.2.1 6J 16B MW-9 16-Apr-14 130 0.4J 1.3 4J 0.81 5J 4J 3J 0.3.1 16J 36B MW-9 12-Nov-14 120 0.3J 0.41 4J 0.61 4J 3J 2J 0.2.1 17 MW-9 (dup) 12-Nov-14 140 0.5J 0.41 6J 11 6J 6J 21 0.3J 4.1 28 MW-9 29-Apr-15 0.7J 901 0.11 0.31 2J 0.11 1J 0.8J 0.8J 0.2.1 3.1 81 MW-9 15-Oct-15 160 0.71 0.21 91 11 6J 71 0.071 1J 0.3.1 111E 31 MW-9 20-Apr-16 150 0.21 2J 0.21 1J 0.A 0.91 0.1J 31 MW-9 13-Sep-16 100 0.151 0.121 1.7J 1.3JB 1.01 1.2J 0.161 111E 9.41 MW-9 19-Apr-17 130 2.11 1.OJ 0.52J 7.4.1 4.61 MW-9 21-Sep-17 160 1.4 0.37J 1.9J 11 M 2.1J 0.40J 34 49 M MW-9 (dissolved) 21-Sep-17 NA NA NA NA NA NA NA NA NA NA NA 111 NA MW-9 11-Apr-18 130 0.16J 3.2J 0.61J 3.OJ 0.20J 5.5.1 4.5J MW-9 (dissolved) 11-Apr-18 NA NA NA NA NA NA NA NA NA NA NA NA NA 5.6.1 NA MW-9 25-Oct-18 89J 2.1J 0.151 111 MW-9 25-Apr-19 150 1.1 2.3J 0.39J 2.41 7.1.1 6.9J MW-9 7-Nov-19 230 0.17J 1.5 3.8J 11 2.1 0.22 4.7J 1.7.1 0.22J 10 57 MW-9 (dissolved) 7-Nov-19 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.21J 6.7 NA MW-9 9-Apr-20 270 2.8J 0.44J 6.4 0.21J 3.9J 30 MW-9 15-Oct-20 0.96J 320 1.3 2.3J 0.58J 5.5 0.21J 9.9 14 MW-9 31-Mar-21 390 0.15J 2.7 2.41 1.4J 11 1.4 8.9 0.16J 9.3 25 MW-9 9-Nov-21 360 2.8 4.4J 8.5 0.25J 9.2 0.25J 31 MW-9 30-Mar-22 370 0.33J 7.8 3.9J 4.4J 65 3.4 10 0.60J 0.36J 6.7 47 MW-9 (dissolved) 30-Mar-22 NA NA NA NA 6.4 NA NA NA NA NA NA NA NA NA NA NA MW-9 12-Oct-22 0.58J 340D 0.23J 2.1 2.OJ 6.8 23 0.92J 7.9 0.25J 0.22J 3.6J 24 MW-9 4-Apr-23 360D 0.23J 4.4 1.3J 7.2 16 1.6 0.18J 5.6 0.55 2.8J 31 MW-10 25-Apr-12 34.7J 0.320J 0.438J 1.79J 2.04J 4.81J 2.64J 0.538 2.25J 21.7 MW-10 23-Oct-12 31.1J 0.302J 0.965J 2.07J 2.511 2.57J 0.910 2.07J 16.5 MW-10 17-Apr-13 30J 0.3JB 0.4J 0.4J 2J 2JB 11 0.43 3J 0.06J 14B MW-10 16-Oct-13 30J 0.3J 0.2J 0.4J 2J 2J 11 0.29 3J 0.05J 4J 9JB MW-10 16-Apr-14 30J 0.3J 0.2J 2J 11 0.5J 0.05J 3J 4J 38B MW-10 12-Nov-14 30J 0.3J 2J 0.03J 3J 9JB MW-10 29-Apr-15 0.2J 40J 0.3J 0.1J 3J 2J 11 0.101 5J 0.05J 10 MW-10 14-Oct-15 30J 0.3J 0.2J 2J 0.8J 0.4J 0.08J 3J 27 MW-10 20-Apr-16 30J 0.3J 0.1J 4J 0.6J 0.3J 0.03J 5J 11 0.05J 4J MW-10 13-Sep-16 0.47J 31J 0.36J 0.19J 3.8J 2.OJB 1.2J 0.14J 4.8J 3.6J 280 MW-10 19-Apr-17 27J 0.32J 2.9J 0.93J 0.38J 0.064J 3.4J 17 MW-10 22-Sep-17 17J 0.18J 1.3J 2.2J 0.30J 2.3J 2.1.1 8.91 MW-10 11-Apr-18 20J 0.32J 0.87J 1.9J 2.4J 1.3J 0.55J 0.27 2.5J 51 MW-10 25-Oct-18 24J 0.16J 0.72J 2.3J 0.57J 0.39 2.7J 7.4J 77 MW-10 (dissolved) 25-Oct-18 NA NA NA NA NA NA 2.6J NA NA NA NA NA NA NA NA MW-10 25-Apr-19 25J 1.7J 2.7J 0.45J 5.1J 2.5J MW-10 7-Nov-19 20 0.24J 2.6J 2.6J 0.50J 0.12J 4.3J 2.5J 66 MW-10(dissolved) 7-Nov-19 NA NA NA NA NA NA 2.2J NA NA NA NA NA NA NA NA NA MW-10 7-Apr-20 23 0.17J 1.3J 2.7J 0.61J 0.14J 4.OJ 15 MW-10 15-Oct-20 12 0.49J 1.41 1.5J 0.32J 2.41 33 MW-10 31-Mar-21 16 0.16J 1.1 5.8 0.47J 0.097J 4.OJ 4.5J 31 MW-10 10-Nov-21 17 0.20J 0.65 2.3J 17 MW-10 30-Mar-22 17 0.16J 0.77 2.8J 1.4J 6.7 0.271 3.7J 19 MW-10 12-Oct-22 16 0.19J 0.44J 1.81 15 MW-10 5-Apr-23 27 0.221 0.351 3.21 0.27 2.8J 30 Smith Page 5 of 31 June 2023 Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 MW-10d 26-Apr-12 0.232J 4.36J 3.50J 3.47JB 4.57J MW-10d 24-Oct-12 3.11J MW-10d 18-Apr-13 4JB 11B 0.07J 0.7J i1 MW-10d 16-Oct-13 0.3J 3JB 0.2J i1 0.05J 0.7J 0.6J MW-10d 17-Apr-14 2J 0.4J 0.6J 41 3JB MW-10d 12-Nov-14 3J 0.5J 0.04J 0.4J MW-10d 30-Apr-15 0.81 0.5J 3J 0.3J 0.1 0.05J 0.6J 4J MW-10d 15-Oct-15 0.5J 5J 0.07J 0.81 0.081 11 0.2J 0.07J 0.6J 5J MW-10d 21-Apr-16 0.3J 5J 0.2J 2J i1 2J 6J MW-10d 14-Sep-16 2.5J 0.67JB 0.15J 3.31 5.5JB MW-10d 19-Apr-17 2.5J 0.14J 0.70J MW-10d 18-Sep-17 4.1J 0.35J 1.4J 3.1J 0.32J 6.9J MW-10d 11-Apr-18 0.60J 3.7J 0.60J 1.8J 2.11 0.34J 14 MW-10d 25-Oct-18 2.5J MW-10d 25-Apr-19 2.8J 3.OJ MW-10d 5-Nov-19 3.7J 0.14J 1.1 0.34J 0.098BJ 6.2BJ MW-10d 9-Apr-20 2.8J 2.7J MW-10d 14-Oct-20 2.3J 3.4J MW-10d 31-Mar-21 1.4) 4.5J 0.27J 3.6J 2.OJ 0.29J 3.4J 10 MW-10d 9-Nov-21 0.72J 4.3J 0.53 2.31 4.4J 0.45J 2.OJ 8.6J MW-10d 29-Mar-22 0.59J 5.5 0.70 3.OJ 12 0.81J 1.5J 10 MW-10d 12-Oct-22 17 3.5J 4.4J MW-10d 5-Apr-23 0.85J 4.6J 0.29J 1.7J 0.31J 9.3J MW-22 25-Apr-12 61.5J 0.224J 4.78 4.77J 63.8 14J 2.56J 0.162J 33.1 18.4 MW-22 23-Oct-12 34.7J 8.27 2.28J 44.7 16.8J 4.02J 19.2 MW-22 17-Apr-13 70J 0.11 4 0.91 76 11B 0.7J 15J 0.06J 12B MW-22 16-Oct-13 50J 0.1J 3.5 11 25 11 11 101 1 8JB MW-22 16-Apr-14 50J 0.1J 2.5 0.91 43 11 11 14J 4J 14B MW-22 12-Nov-14 40J 0.1J 2.5 3J 17 2J 21 101 91 MW-22 30-Apr-15 50J 1.5 0.6J 31 0.7J 0.61 101 91 MW-22 15-Oct-15 801 0.7J 3.4 91 29 5J 91 0.051 13J 4J 0.2J 14JB 56 MW-22 20-Apr-16 40J 0.07J 1.3 18 0.5J 0.31 7J 6J MW-22 13-Sep-16 82J 0.82J 3.1 12 38 6.9JB 11 14J 3.11 0.20J 181 47 MW-22 19-Apr-17 45J 0.261 2.8 1.91 18 2.6J 1.61 6.5J 0.93J 6.41 13 M W-22 18-Sep-17 M W-22 13-Apr-18 MW-22 23-Oct-18 3 Not Sampled MW-22 23-Apr-19 MW-22 4-Nov-19 MW-22 8-Apr-20 MW-22 14-Oct-20 48 0.16J 1.5 2.31 40 1.71 3.2 11 3.6J 14 MW-22 31-Mar-21 27 0.91 18 0.271 4.81 7.61 MW-22 10-Nov-21 31 1.9 1.7J 34 2.5J 0.351 12 15 MW-22 30-Mar-22 30 0.371 40 11 8.81 MW-22 13-Oct-22 37 3.3 29 13 8.21 MW-22 3-Apr-23 Not Sampled (3� CDM Smith Page 6 of 31 June 2023 Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 LI ,,, 15 1 ,,, 100 MW-23 26-Apr-12 42.7J 6.68J 1.61 10.413 7.07J 4.20J 12.5J 17.5 MW-23 24-Oct-12 38.9J 5.76J 1.81 8.02J 4.12J 3.92J 13.3J 18.5 MW-23 18-Apr-13 0.2J 240 1.8 0.11 30 15 56 30 0.06J 28J 11 106 147 MW-23 16-Oct-13 30J 0.2J 0.1J 3J 0.7J 4J 2J 0.02J 2J 5J 6JB MW-23 16-Apr-14 50J 0.1 0.2J 7J 2J 10 5J 4J 0.11 16J 25B MW-23 12-Nov-14 50J 0.4J 7J 2J 12 6J 0.02J 5J 0.11 12J 19 MW-23 30-Apr-15 0.4J 50J 0.1 7J 21 13 6J 0.03J 6J 0.11 15J 26 MW-23 15-Oct-15 110 1.1 20 7J 34 18 0.06J 16J 0.51 39 69 MW-23 (dup) 15-Oct-15 170 1.6 32 11 51 30 0.12J 25J 0.81 60 112 MW-23 20-Apr-16 40J 0.1 5J 11 91 5J 4J 0.11 91 21 MW-23 13-Sep-16 54J 0.59J 0.081 8.9J 3.3J 15B 7.7J 6.91 0.22J 23J 39 MW-23 19-Apr-17 26J 0.191 3.1 4.5J 2.1J 2.4J 6.51 7.2J MW-23 20-Sep-17 110 1.5 0.14J 19 6.6J 33 17 16J 0.48J 59 67 MW-23 (dissolved) 20-Sep-17 NA NA NA NA NA NA NA NA NA NA 3.1 NA MW-23 11-Apr-18 85J 0.86J 0.22J 12 4.4J 21 11 14J 0.28J 30 44 MW-23 (dissolved) 11-Apr-18 NA NA NA NA NA NA NA NA NA NA NA NA MW-23 25-Oct-18 51J 0.26J 0.62J 9.2J 3.1J 12 5.6J 8.1 0.191 21J 45 MW-23 (dissolved) 25-Oct-18 NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-23 25-Apr-19 42J 0.19J 5.6J 1.81 8.OJ 4.6J 4.2J 13J 30 MW-23 (dissolved) 25-Apr-19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-23 5-Nov-19 39 0.35J 6.0 1.7J 10 5.3 4.1 0.23J 13 24B MW-23 (dissolved) 5-Nov-19 NA NA NA NA NA NA NA NA NA NA NA NA 0.20J NA MW-23 8-Apr-20 110 0.44 12 4.6J 26 18 9.2 0.23J 28 39 MW-23 (dissolved) 8-Apr-20 NA NA NA NA NA 1.7J NA NA NA NA NA NA MW-23 14-Oct-20 19 1.91 1.8J 1.0 3.8J 2.8J MW-23 31-Mar-21 25 4.2J 6.2 3.0 2.7J 9.1 12 MW-23 10-Nov-21 11 1.4J 0.39J 3.OJ MW-23 30-Mar-22 26 2.5J 14J MW-23 13-Oct-22 19 0.171 3.6J 2.9J 1.6 2.4J 6.1 4.6J MW-23 4-Apr-23 23 3.OJ 2.7J 1.3 1.5J 5.2 4.51 MW-23d 25-Apr-12 0.754J 35J 0.746J 4.03J 16.86 3.32J 4.05J 6.65J MW-23d 23-Oct-12 0.552J 33.2J 0.644J 4.73J 4.38J 4.48J 8.66J MW-23d 18-Apr-13 2.6J 40J 1.5 3JB 0.3J 4J 0.4J 1J 12B MW-23d 17-Oct-13 1.71 40J 0.05J 0.7J 2J 0.3J 31 0.3J 0.02J 1J 3J 3JB MW-23d 17-Apr-14 1.3J 30J 0.3J 2J 0.3J 21 0.3J 1J 6J 8JB MW-23d 13-Nov-14 1.11 40J 0.2J 2J 0.3J 21 0.3J 0.81 2J 6J MW-23d 29-Apr-15 1.6J 40J 0.2J 2J 0.3J 2J 0.3J 0.91 2J 6J MW-23d 15-Oct-15 3.6J 40J 0.04J 0.5J 3J 0.4J 4J 0.6J 0.05J 1J 2JB 13 MW-23d 20-Apr-16 1.11 40J 0.2J 3J 0.3J 2J 0.2J 4J 7J MW-23d 13-Sep-16 1.2J 37J 0.23J 2.1 0.26J 2.5JB 0.48J 2.5J 6.1J 13 MW-23d (dup) 13-Sep-16 0.971 36J 0.22J 1.9J 2.2JB 0.36J 2.2J 5.7J 10 MW-23d 19-Apr-17 0.531 34J 0.24J 2.OJ 4.9J 1.4J 3.7J 6.9J MW-23d 21-Sep-17 34J 2.7J 3.8J 3.51 5.81 MW-23d 10-Apr-18 38J 5.2J 2.4J 0.32J 1.8J 2.61 3.41 MW-23d (dup) 10-Apr-18 36J 4.8J 2.31 1.7J 3.11 MW-23d 23-Oct-18 36J 14 7.OJ 4.01 MW-23d 23-Apr-19 41J 2.2J 3.91 MW-23d 4-Nov-19 1.71 34 0.91 2.2J 4.11 0.35J 0.09613J 1.31 3.81 21B MW-23d 8-Apr-20 1.11 33 0.80 3.5J 3.5J 0.47J 1.5J 29 MW-23d 13-Oct-20 7.3 34 0.93 2.1J 3.2J 0.51J 1.5J 3.71 29 MW-23d (dup) 13-Oct-20 7.6 35 0.92 2.4J 3.4J 0.64J 1.6J 3.6J 25 MW-23d 31-Mar-21 0.61J 37 0.21J 9.8 2.9J 0.26J 1.1 3.7J 14 MW-23d 9-Nov-21 35 2.OJ 3.9J MW-23d (dup) 9-Nov-21 35 1.91 3.8J MW-23d 29-Mar-22 35 2.OJ 1.6J 1.1 3.8J MW-23d (dup) 29-Mar-22 36 2.2J 4.1J MW-23d 12-Oct-22 39 2.4J 3.9J MW-23d (dup) 12-Oct-22 39 2.5J 4.2J MW-23d 4-Apr-23 0.681 41 0.231 1.6J 1.91 4.01 8.6J CDIN Page 7 of 31 June 2023 Smith Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 MW-24 26-Apr-12 57.61 0.2811 7.541 7.0916 9.80J 3.35J 1.821 0.190J 8.381 58.7 MW-24 23-Oct-12 35.91 2.101 2.501 4.01J 0.120J 5.341 28.3 MW-24 17-Apr-13 120 1.41 0.11 91 21 11 17 0.24 51 0.5.1 17J 128 MW-24 16-Oct-13 60J 0.61 0.11 41 0.91 5J 7.1 0.091 2J 0.2.1 8.1 46 MW-24 16-Apr-14 120 1.1 61 21 91 14 0.171 4J 0.4.1 22J 120 MW-24 12-Nov-14 130 1.5 81 21 11 17 0.21 51 0.6.1 14J 117 MW-24 29-Apr-15 80J 0.81 41 11 7J 9.1 0.121 1 0.3.1 101 69 MW-24 14-Oct-15 240 2.5 0.21 41 18 0.43 7J 0.9.1 182 MW-24 20-Apr-16 170 1.8 31 13 0.21 6J 0.7.1 140 MW-24 13-Sep-16 34J 0.371 0.0861 1.41 0.551 2.31B 3.61 1.51 0.121 7.5.1 31 MW-24 19-Apr-17 66J 0.771 3.81 0.981 5.0J 7.91 0.0861 2.51 0.241 9.1J 56 MW-24 20-Sep-17 51J 0.761 3.91 0.711 4.6J 5.81 2.4.1 0.191 7.5.1 47 MW-24 (dissolved) 20-Sep-17 NA NA NA NA NA NA NA NA NA NA NA NA NA 3.6J NA MW-24 11-Apr-18 62J 0.75.1 4.81 5.0J 7.11 2.6J 0.221 6.9.1 49 MW-24 (dissolved) 11-Apr-18 NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-24 23-Oct-18 MW-24 24-Apr-19 (') Not Sampled MW-24 4-Nov-19 MW-24 8-Apr-20 0 2.51 MW-24 31-Mar 21 I 15 10.20J I 1.71 I I 0.801 I 3.2J I 7.6.1 MW-24 9-Nov-21 Not Sampled(') MW-24 30-Mar-22 I I 19 I I I 2.91 I I 10.61J I I 1.81 I I I 2.6.1 I 5.6.1 M W-24 13-Oct-22 (3) Not Sampled MW-24 3-Apr-23 MW-28 26-Apr-12 67.7.1 14.2 3.901 2.81.113 5.18J 5.84J 0.2291 20.71 69.8 MW-28 18-Apr-13 60J 0.31 10 3.1 11 11 41 0.2J 101 34B MW-28 17-Apr-14 170 1.5 41 14 5J 71 0.021 20J 1.0.1 53 159 MW-28 30-Apr-15 801 0.51 16 5J 2J 21 0.021 71 0.4J 22J 62 MW-28 21-Apr-16 20J 4J 0.06J 91 MW-28 20-Apr-17 29J 0.181 3.9J 0.301 1.31 6.1.1 11 MW-28 13-Apr-18 55J 0.411 11 2.7J 1.3.1 5.11 0.161 15J 22 MW-28 (dissolved) 13-Apr-18 NA NA NA NA NA NA NA NA NA NA NA NA 2.6.1 NA MW-28 25-Apr-19 56J 0.171 8.91 2.6J 1.21 4.41 0.151 15J 37 MW-28 (dissolved) 25-Apr-19 NA NA NA NA NA NA NA NA NA NA NA NA NA 2.8J NA MW-28 8-Apr-20 76 0.311 4.7J 2.5 7.1 0.381 24 54 = MW-28 (dissolved) 8-Apr-20 NA NA NA NA NA 3.21 NA NA NA NA NA NA NA MW-28 31-Mar-21 32 0.161 5.7 2.6J 1.1 1.91 8.4 29 MW-28 29-Mar-22 33 0.201 6.3 1.31 1.6J 0.90J 2.21 1.1 9.5 22 MW-28 5-Apr-23 33 0.231 5.9 0.69J 1.81 9.4 15 MW-28d 26-Apr-12 1.46.1 28.7.1 10.1 1.341 13.36 4.99J 9.42J 4.731 106 MW-28d 18-Apr-13 0.31 91B 2113 0.11 0.91 0.91 4113 MW28d 17-Apr-14 0.41 11 6J 41 0.41 31 1.01 51 61 106 MW28d 30-Apr-15 0.21 10J 21 0.091 0.61 0.91 71 MW28d 21-Apr-16 9.1 21 0.81 91 91 MW28d 20-Apr-17 8.1J 1.31 0.681 3.3.1 5.91 MW28d 13-Apr-18 5.8.1 1.91 6.91 MW28d 25-Apr-19 7.1J 2.01 1.51 1.5J 3.31 9.91 MW-28d (dissolved) 25-Apr-19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 2.51 NA MW28d 8-Apr-20 7.3 2.61 1.31 9.11 MW28d 31-Mar-21 15 2.91 3.81 1.2 6.3 6.7 15 MW28d 29-Mar-22 0.551 13 2.61 7.0 1.4 2.41 1.31 5.2 31 MW28d 5-Apr-23 1.9J 6.8 2.8J 0.681 2.11 11 11 MW-28d (dissolved) 5-Aor-23 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA Smith Page 8 of 31 June 2023 Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 MW-29d 26-Apr-12 0.317J 41.5J 6.48J 8.73JB 3.94J 1.97J 3.72J 23.2 MW-29d 24-Oct-12 38.OJ 4.87J 6.36J 2.48J 4.36J 7.64J MW-29d 18-Apr-13 40J 0.081 4J 0.4J 5J 0.3J 11 0.05J 3JB MW-29d 17-Oct-13 40J 0.11 4J 0.2J 3J 11 MW-29d 17-Apr-14 40J 0.081 3J 0.2J 3J 0.81 5J 25B MW-29d 13-Nov-14 40J 0.07J 3J 0.5J 4J 0.3J 2J 2J MW-29d 29-Apr-15 0.2J 0.5J 40J 0.11 4J 0.3J 41 0.3J 11 13 MW-29d 15-Oct-15 0.2J 40J 0.11 4J 0.3J 41 0.6J 0.04J 11 81 MW-29d 21-Apr-16 0.6J 40J 4J 0.3J 5J 0.2J 11 6J MW-29d 12-Sep-16 0.38J 39J 2.7J 3.11B 0.251 0.901 4.8J 22 MW-29d 19-Apr-17 36J 2.7J 1.91 2.3J 13 MW-29d 22-Sep-17 35J 3.9J 2.81 5.9J MW-29d 12-Apr-18 34J 3.7J 1.1 5.4J MW-29d 24-Oct-18 34J 3.2J 3.1 2.7J MW-29d 25-Apr-19 38J 3.1 MW-29d 5-Nov-19 33 3.4J 3.9J 0.36J 0.092BJ 2.OJ 39B MW-29d 6-Apr-20 1.4J 43 0.241 11 19 2.5 4.1J 3.8J 30 MW-29d 14-Oct-20 1.3J 37 0.13J 3.6J 2.5J 0.38J 45 MW-29d 31-Mar-21 0.641 45 5.6 6.9 0.73J 2.0 3.31 88 MW-29d 9-Nov-21 35 2.1 MW-29d 29-Mar-22 0.67J 25 4.9J 8.9 1.4 3.1J 0.29J 140 MW-29d 13-Oct-22 1.1) 34 10 6.2 0.71J 5.0 3.5J 36 MW-29d 5-Apr-23 34 7.0 7.0 0.89J 2.5J 3.7J 56 MW-30 25-Apr-12 169 0.773J 58 9.94J 73.9 9.17J 22.7J 2.15J 0.360J 51.7 54.7 MW-30 23-Oct-12 197 57.5 11.3 80.2 9.44J 26.3 0.359J 54.4 62.6 MW-30 17-Apr-13 450 2.8 0.1J 124 24 155 17 0.04J 56 11 146 141 MW-30 16-Oct-13 220 1.4 49 91 63 6J 0.03J 21J 0.31 50 40 MW-30 16-Apr-14 220 1.4 66 11 78 7J 0.02J 26J 0.5J 73 71 MW-30 12-Nov-14 500 3.0 0.21 148 24 169 19 0.07J 59 2J 1.11 154 148 MW-30 29-Apr-15 180 1.2 59 91 67 6J 23J 0.4J 48 53 MW-30 15-Oct-15 0.41 60J 1.2 0.71 48 11 12 2J 0.05J 10J 0.06J 63 44 MW-30 21-Apr-16 150 0.81 46 7J 54 5J 0.02J 18J 0.3JB 29 38 MW-30 14-Sep-16 0.171B 50J 0.36J 0.053J 8.8J 1.61 11B 0.95J 4.5J 111 18B MW-30 20-Apr-17 79J 0.56J 25 3.1J 28 2.2J 8.7J 0.14J 191 22 MW-30 22-Sep-17 M W-30 12-Apr-18 MW-30 24-Oct-18 3 Not Sampled MW-30 25-Apr-19 MW-30 5-Nov-19 MW-30 8-Apr-20 MW-30 15-Oct-20 1.4J 67 0.32J 0.46J 7.1 1.3J 11 2.4 4.2J 8.4 29 MW-30 (dissolved) 15-Oct-20 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-30 31-Mar-21 78 0.261 0.161 13 2.51 9.4 2.5 4.2J 11 24 MW-30 (dissolved) 31-Mar-21 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-30 9-Nov-21 MW-30 28-Mar-22 3 Not Sampled MW-30 13-Oct-22 MW-30 3-Aor-23 CDM Smith Page 9 of 31 June 2023 Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 MW-31 25-Apr-12 33.4J 0.1221 13.1 6.71J 3.56J 5.40J 0.904J 9.25J 33.1 MW-31 23-Oct-12 35.7J 14 6.52J 3.76J 5.09J 9.26J 53.6 MW-31 17-Apr-13 70J 0.4J 24 11 14 7J 0.03J 8J 0.05J 181 29B MW-31 16-Oct-13 30J 0.11 11 0.4J 5J 2J 5J SJ 13B MW-31 16-Apr-14 901 0.5J 0.21 32 2J 18 10 0.07J 8J 0.07J 35 70 MW-31 12-Nov-14 0.5J 110 0.7J 41 2J 26 14 0.081 111 0.11 37 29 MW-31 29-Apr-15 50J 0.2J 14 0.6J 7J 4J 0.03J 3J 13J 14 MW-31 14-Oct-15 0.5J 120 0.6J 38 2J 24 13 0.111 91 0.081 37 37 MW-31 21-Apr-16 0.61 70J 0.5J 30 2J 17 12 0.14J 5J 0.07JB 26 17 MW-31 13-5ep-16 29J 0.23J 13 0.64J 5.6B 3.4J 2.OJ 12J 12 MW-31 19-Apr-17 28J 8.1 3.9J 1.8J 2.6J 0.22J 5.2.1 12 M W-31 21-5ep-17 M W-31 12-Apr-18 MW-31 24-Oct-18 Not Sampledi3 M W-31 24-Apr-19 MW-31 5-Nov-19 M W-31 8-Apr-20 MW-31 15-Oct-20 41 0.221 16 7.8 3.9 7.4 14 14 MW-31 (dissolved) 15-Oct-20 NA NA NA NA NA 3.0 NA NA NA NA NA NA NA NA NA NA MW-31 31-Mar-21 25 115 5.3 2.1 1.6J 12 6.3J MW-31 10-Nov-21 17 3.OJ 1.5J 4.1J 9.2J MW-31 29-Mar-22 17 3.7J 1.1 0.33J 1.91 3.1 5.6J MW-31 13-Oct-22 Not Sampled(3) M W-31 3-Apr-23 MW-31d 24-Apr-12 1.68) 17. 11 6.79J 26.5 0.944J 7.62J 12.6 MW-31d 22-Oct-12 7.20J 19.3J 8.24J 1.82J 7.99J 43.5 MW-31d 16-Apr-13 O.SJ 20J 6J 0.08J 0.8JB 1J 6J 21B MW-31d 15-Oct-13 0.81 20J 6J 0.06J 11 0.8J SJ 16B MW-31d 15-Apr-14 0.71 20J 5J 0.09J 0.8J 0.91 91 24B MW-31d 11-Nov-14 O.SJ 20J 6J 0.08J 0.8J 0.7J 2J 7J MW-31d 28-Apr-15 1.1J 20J 6J 0.07J 0.9J 0.8J 51 24 MW-31d 13-Oct-1S 1.2J 20J 0.3J 6J 0.05J 3J 0.2J 0.04J 1J 4J 30 MW-31d 21-Apr-16 20J 4J 0.7J 0.91 2J 5J MW-31d 13-Sep-16 0.591 18J 0.14J 5.1 1.5JB 1.2J 7.2J 56 MW-31d 19-Apr-17 181 5.4J 2.6J 6.6J 53 MW-31d 18-Sep-17 191 4.4J 1.01 7.8J 2.6J MW-31d 13-Apr-18 0.511 181 5.1 4.6J 25 MW-31d (dissolved) 13-Apr-18 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 4.3J NA MW-31d 24-Oct-18 21J 6.6J 0.28.1 1.81 9.91 4.OJ MW-31d 24-Apr-19 21J 4.2J 7.8J MW-31d S-Nov-19 0.631 17 0.21J 4.1J 1.6J 0.092J 6.3 84B MW-31d 8-Apr-20 18 4.41 0.431 7.6 20 MW-31d (dissolved) 8-Apr-20 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 7.3 NA MW-31d 15-Oct-20 0.80J 19 4.41 6.6 26 MW-31d 31-Mar-21 0.99J 20 0.20J 4.9J 1.91 6.6 87 MW-31d 9-Nov-21 21 3.8J 0.28J 8.7 4.01 MW-31d 29-Mar-22 0.95J 23 0.27J 5.8 6.5 0.55J 2.6J 1.41 6.5 100 MW-31d 12-Oct-22 21 3.9J 7.7 3.41 MW-31d 4-Apr-23 1.6J 25 0.241 2.91 3.9J 0.68J 1.91 4.91 86 CDIN Page 10 of 31 June 2023 Smith Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 25-Apr-12 0.393J 3.37J 15.41 0.261J 1.92J 2.34J ,,, 8.49J 15 1 100 1.96J 5.711 ,,, 6.22J MW-32 MW-32 23-Oct-12 30J 6.71J 3.30J 27.2 5.04J 11.81 13.1 MW-32 17-Apr-13 30J 0.1 5J 3J 22 0.5J 5J 91 8JB MW-32 16-Oct-13 70J 0.6J 0.3J 11 6J 50 0.91 101 0.11 32 25 MW-32 16-Apr-14 20J 0.1 21 21 8J 0.2J 2J 7J 10B MW-32 12-Nov-14 50J 0.5J 11 51 37 0.91 91 0.11 15J 18 MW-32 29-Apr-15 0.6J 140 1.6 0.11 27 18 131 3J 24J 0.31 77 58 MW-32 14-Oct-15 170 1.4 0.11 29 18 135 2J 0.04J 25J 0.31 91 53 MW-32 21-Apr-16 40J 0.5J 6J 51 28 0.5J 6J 0.08JB 17J 18 MW-32 13-Sep-16 40J 0.63J 0.20J 8.5J 5.6J 27B 0.751 7.21 0.086J 181 19 MW-32 20-Apr-17 111 0.30J 1.6J 0.90J 5.1J 1.4J 2.7J 3.5J MW-32 22-Sep-17 0.66J 14J 0.17J 1.6J 1.3J 1.3J 4.OJ MW-32 13-Apr-18 8.5J 0.30J 1.5J 2.7J MW-32 25-Oct-18 13J 0.26J 3.11 1.8J 1.6J 2.5J MW-32 (dissolved) 25-Oct-18 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-32 25-Apr-19 26J 0.33J 0.30J 2.6J 11 9.5J 5.OJ 4.7J 27 MW-32 (dissolved) 25-Apr-19 NA NA NA NA NA NA 6.2 NA NA NA NA NA NA NA MW-32 7-Nov-19 13 0.21J 2.41 3.6J 0.28 2.2J 3.OJ MW-32 (dissolved) 7-Nov-19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-32 8-Apr-20 14 0.24J 3.5J 2.41 13 0.42J 3.OJ 2.5J 14 MW-32 (dissolved) 8-Apr-20 NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-32 15-Oct-20 5.6 0.27J 5.9J MW-32 31-Mar-21 0.62J 11 0.27J 1.81 3.5J 4.2J 1.8J 3.6J 11 MW-32 9-Nov-21 16 0.20J 2.4J 7.7 2.1J 3.1 5.2J MW-32 29-Mar-22 9.1 0.46 1.4J 2.1J 3.2J 1.4J 5.4 2.8J MW-32 13-Oct-22 8.0 0.17J 1.7J 3.6J MW-32 4-Apr-23 14 0.47 2.4J 2.2J 8.3 2.1J 6.8 4.7J TB-1a 25-Apr-12 0.269J 190 1.5 29 22 158 7.33J 0.348 27.9J 0.186J 61.3 89.4 TB-1a 23-Oct-12 85.4J 0.584J 11.3 14.8 59.6 2.35J 13.31 25 48.2 TB-1a 17-Apr-13 40J 0.06J 0.3J 5J 91 24 0.91 0.11 6J 91 11B TB-1a 16-Oct-13 60J 0.08J 0.3J 6J 10 35 11 0.12J 91 14J 14B TB-1a 16-Apr-14 101 1.2 0.7J 51 3J 0.3J 0.13J 3J 5J 16B TB-1a 12-Nov-14 801 0.2J 2.7 101 91 54 2J 0.34 12J 0.08J 191 41 TB-1a 29-Apr-15 0.61 30J 0.06J 1.9 4J 51 18 11 0.22 6J 6J 17 TB-1a 15-Oct-15 70J 0.1J 2.5 8J 11 40 2J 0.22 13J 17JB 45 TB-1a 21-Apr-16 50J 0.7J 6J 6J 33 11 0.22 7J 0.06JB 6J 18 TB-1a 14-Sep-16 0.171B 99J 0.23J 1.7 12 11 72B 3.5J 0.72B 15J 0.111 29 49B TB-1a 20-Apr-17 17J 0.37J 1.0J 3.6J 0.050J 1.9J 5.1J 5.5J TB-1a 22-Sep-17 TB-1a 12-Apr-18 TB-1a 24-Oct-18 TB-1a 24-Apr-19 Not Sampled(3) TB -la 5-Nov-19 TB-1a 8-Apr-20 TB -la 14-Oct-20 TB-1a 31-Mar-21 I I 19 I I 6.6 I 6.5 I 3.2J I 4.7J 10.48J I 0.10J I 4.7J I I I I 3.1J I 21 TB -la 9-Nov-21 TB -la 28-Mar-22 3 Not Sampled TB -la 13-Oct-22 TB-1a I 3-Apr-23 CDM Smith Page 11 of 31 June 2023 Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 off II TB-1a deep 24-Apr-12 0.9281 15.51 11.5 3.87J 1.231 6.581 8.41J TB-1a deep 23-Oct-12 18.01 6.851 8.29J 6.511 10.4 TB-1a deep 16-Apr-13 2.3J 20J 70.11 F6JI 81 0.51 5J 2J 16B TB-1a deep 15-Oct-13 2.2J 201 6J 51 4J 3J 916TB-1a deep 15-Apr-14 2.1J 20J 5J 0.41 3J 8J 17B TB-1a deep 11-Nov-14 2.9J 30J . 7J 5J 0.51 4J 18 TB-1a deep 28-Apr-15 2.41 30J 0.11 7.1 0.81 4J 0.41 5J 2J 12 TB-1a deep 14-Oct-15 101 4.1 0.04J 1.1 TB-1a deep 20-Apr-16 0.4J 20J 4.1 0.71 2J 0.21 3J 61 TB-1a deep 13-Sep-16 0.66J 22J 0.0701 3.1.1 0.46.1 1.7J13 0.26J 3.2.1 6.4.1 12 TB-1a deep 19-Apr-17 0.74J 25J 3.2.1 3.OJ 3.3.1 3.9.1 13 TB-1a deep 22-Sep-17 0.76J 151 3.4J 3.4J 6.8J TB-1a deep 13-Apr-18 13J 3.1J 1.4J 0.28J 13 TB-1a deep 24-Oct-18 13J 5.2J 1.6J 6.5J TB-1a deep 24-Apr-19 13J 151 3.9J 2.4J TB-1a deep 5-Nov-19 1.7J 23 0.66 5.0 0.64J 2.8J 4.1J 38B TB-1a deep 6-Apr-20 1.51 24 0.29J 2.8J 3.6J 0.61J 2.9J 65 TB-1a deep (dup) 6-Apr-20 1.91 23 0.27J 3.7J 0.55J 3.5J 70 TB -la deep 14-Oct-20 2.2 27 0.44J 2.01 2.4J 0.99J 2.41 3.1J 82 TB -la deep 31-Mar-21 0.53J 17 0.28J 4.81 2.3J 3.4J 25 TB -la deep 9-Nov-21 14 2.11 0.25J 5.6 TB -la deep 29-Mar-22 31 0.46J 2.31 3.2J 0.68J 2.4J 4.3J 71 TB -la deep 13-Oct-22 15 2.41 0.28J 5.2 4.9J TB -la deep 4-Apr-23 15 0.19J 3.21 2.2J 0.57J 1.31 4.3J 20 MW-33 25-Apr-12 112 0.208J 44.4 15.1 37 6.44J 20.2J 0.917J 72.1 102 MW-33 17-Apr-13 70J 0.31 17 5J 13 2J 7J 34 33 51 MW-33 15-Apr-14 40J 0.6J 11 21 8J 9JB MW-33 29-Apr-15 50J 0.07J 71 1J 3J 0.4J 3J 8J 15 MW-33 21-Apr-16 0.51 1001 0.11 4J 12 2J 71 21J 35 MW-33 20-Apr-17 29J 5.11 1.5J 5.9J 7.4J MW-33 13-Apr-18 28J 5.31 3.3.1 6.3.1 MW-33 24-Apr-19 59J 4.31 1.6J 1.71 4.0.1 4.8.1 MW-33 8-Apr-20 71 0.25J 0.66 22 2.7 14 AM 77 3.81 MW-33 (dissolved) 8-Apr-20 NA NA NA NA NA NA NA NA NA NA NA NA NA MW-33 31-Mar-21 56 7.3 1.71 3.7J 5.21 MW-33 29-Mar-22 31 3.21 4.11 3.21 MW-33 5-Apr-23 36 3.81 4.8.1 4.71 MW-34 26-Apr-12 0.2611 184 1.27 4.771 23.86 8.31 0.255 13.2J 37.4 53.7 MW-34 17-Apr-13 560 0.3J 90 0.45 49J 0.3J 239 282 = M MW-34 15-Apr-14 110 0.31 0.2J 31 1.1 0.81 0.25 21 3.1 16B MW-34 29-Apr-15 220 1.5 0.2J 5.1 24 5.1 0.33 15J 0.1J 76 MW-34 21-Apr-16 150 0.51 91 2.1 5J 0.8.1 0.17.1 5J 0.08J13 2.1 32 MW-34 20-Apr-17 84J 0.291 4.41 1.4J 0.25 2.OJ 1.5J 13 MW-34 13-Apr-18 130 0.631 8.61 1.81 6.81 1.21 5.21 7.1J 21 NA MW-34 (dissolved) 13-Apr-18 NA NA NA NA NA NA NA NA NA NA NA NA NA MW-34 25-Apr-19 170 0.621 0.211 14 2.51 10 1.91 0.30 6.9J 14J 30 MW-34 (dissolved) 25-Apr-19 NA NA NA NA NA 2.01 1.71 NA NA NA NA NA NA NA NA MW-34 7-Nov-19 190 1.7 0.9613 31 4.OJ 26 5.0 16 1.5J 0.2081 49 11111111 MW-34 (dissolved) 7-Nov-19 NA NA NA NA NA 4.21 NA NA 0.49 NA NA NA NA MW-34 9-Apr-20 120 0.47 0.311 = 1.9J 7.6 1.4 0.28 6.4 7.0 35 MW-34 (dissolved) 9-Apr-20 NA NA NA NA NA 2.91 NA NA NA NA NA NA NA NA MW-34 15-Oct-20 89 0.261 4.11 1.31 2.6J 13 MW-34 31-Mar-21 240 0.91 0.301 28 13 2.4 0.131 11 16 36 MW-34 (dissolved) 31-Mar-21 NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-34 11-Nov-21 83 0.291 3.41 1.71 0.181 2.6J 9.21 MW-34 30-Mar-22 150 1.11 191 12J 1.91 0.171 8.8J 17J 24J MW-34 (dissolved) 30-Mar-22 NA NA NA NA NA 3.61 NA NA NA NA NA NA NA NA NA NA MW-34 11-Oct-22 88 0.291 4.51 1.31 1.61 0.27J 0.28 3.21 14 MW-34 I 4-Apr-23 1 100 1 0.34J 5.3 1.7.1 3.OJ 0.51J 0.13.1 2.9.1 3.9J 1 13 Smith Page 12 of 31 June 2023 Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 ,,, 15 1 100 ,,, MW-34d 25-Apr-12 0.575J 32.5J 8.02J 5.86JB 2.66J 1.57J 7.83J MW-34d 16-Apr-13 0.61 20J 0.1J 0.3J 4J 0.11 1JB 0.6J 0.7J 2JB MW-34d 15-Apr-14 0.4J 0.51 20J 0.1J 0.2J 4J 0.091 2J 0.5J 41 11B MW-34d 28-Apr-15 0.81 20J 0.1J 0.3J 5J 0.081 1J 0.5J 0.05J 0.5J 6J MW-34d 21-Apr-16 180 0.81 0.11 15 3J 12 2J 0.191 8J 11 0.11E 12J 35 MW-34d 20-Apr-17 20J 0.14J 6.4J 0.073J 2.01 3.OJ MW-34d 11-Apr-18 20J 0.15J 12 MW-34d 23-Apr-19 21J 6.5J 0.46 MW-34d 6-Nov-19 25 1.8 8.7 4.3J 0.90J 0.20B 1.4J 19 MW-34d 8-Apr-20 1.2J 27 1.7 7.9 4.9J 0.90J 1.5J 19 MW-34d 15-Oct-20 3.1 28 0.82 7.1 1.6J 22 MW-34d 31-Mar-21 26 2.2 9.8 2.9J 0.27J 12 MW-34d 10-Nov-21 0.601 25 0.22J 0.20J 6.8 0.111 2.6J MW-34d 29-Mar-22 27 0.16J 9.7 MW-34d 11-Oct-22 28 0.16J 7.4 2.5J 2.9J MW-34d 4-Apr-23 30 7.0 MW-35 25-Apr-12 51.3J 0.616J 3.96J 2.36J 5.67J 3.101 11.3J 17.8 MW-35 17-Apr-13 60J 0.8J 0.1J 5J 2J 71 2J 41 16J 12B MW-35 16-Apr-14 60J 1.OJ 0.3J 6J 3J 8J 2J 4J 22J 26B MW-35 29-Apr-15 70J 1.0 0.11 7J 4J 91 2J 0.02J 5J 0.06J 22J 20 MW-35 20-Apr-16 50J 0.7J 4J 2J 5J 11 31 11J 12 MW-35 20-Apr-17 38J 0.39J 2.1 6.5.1 2.41 5.OJ 3.7J 3.9J 66 MW-35 13-Apr-18 29J 0.28J 0.24J 1.5J 3.3J 0.48J 32 MW-35 24-Apr-19 38J 0.41J 2.1J 1.61 1.6J 0.38J 1.31 3.1J 14 MW-35 9-Apr-20 36 0.4 2.2J 1.61 1.9J 0.48J 1.8J 33 MW-35 31-Mar-21 36 0.40 4.11 0.61J 3.1 11 MW-35 29-Mar-22 38 0.51 1.6J 4.4J 0.831 1.5J 1.4J 4.7J 24 MW-35 4-Apr-23 38 0.36J 1.4J 12 MW-36 25-Apr-12 64.7J 7.90J 2.61J 9.44J 4.31 12.5J 12.1 MW-36 23-Oct-12 216 68.8 18.8 84 8.62J 29.1 0.420J 91.7 72 MW-36(dup) 23-Oct-12 73.7J 11.6 3.49J 13.4 6.09J 0.121J 16.8J 18.4 MW-36 17-Apr-13 50J 0.1J 6J 2J 6J 0.5J 4J 81 12B MW-36 16-Oct-13 0.61 60J 0.2J 7J 2J 8J 0.6J 4J 0.05J 10J 4JB MW-36 16-Apr-14 901 0.3J 19 51 23 2J 91 0.1J 33 32B MW-36 12-Nov-14 130 0.6J 32 91 39 3J 15J 0.1 40 46 MW-36 30-Apr-15 0.61 100J 0.3J 24 7J 27 2J 0.02J 11J 0.2J 29 27 MW-36 15-Oct-15 130 0.7J 38 10 46 3J 0.05J 16J 0.1 37 41 MW-36 20-Apr-16 70J 0.3J 13 3J 15 11 6J 0.1J 11J 17 MW-36 13-Sep-16 62J 0.24J 0.047J 11 3.OJ 10B 0.88J 5.1 0.088J 14J 16 MW-36 20-Apr-17 40J 2.8J 2.9J 1.8J 4.4J 11 MW-36 22-Sep-17 70J 0.32J 16 3.3J 18 1.3J 6.6J 20J 16 MW-36(dissolved) 22-Sep-17 NA NA NA NA NA NA NA NA NA NA NA NA 4.9J NA MW-36 13-Apr-18 54J 0.29J 5.41 3.31 0.75J 1.8J 3.2J 4.OJ MW-36(dissolved) 13-Apr-18 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-36 25-Oct-18 80J 0.20J 27 4.8J 20 1.6J 12J 25 25 MW-36(dissolved) 25-Oct-18 NA NA NA NA NA 2.3J NA NA NA NA NA NA NA NA MW-36 25-Apr-19 180 0.33J 57 11 55 4.3J 18J 0.31J 55 59 MW-36(dissolved) 25-Apr-19 NA NA NA NA NA 3.8J NA NA NA NA NA NA NA MW-36 7-Nov-19 81 0.40 21 4.5J 23 1.5 0.21 8.2 0.17BJ 23 25 MW-36(dissolved) 7-Nov-19 NA NA NA NA NA 1.5J NA NA NA NA NA NA NA NA MW-36 9-Apr-20 120 0.31J 35 7.8 35 2.8 14 0.23J 35 33 MW-36(dissolved) 9-Apr-20 NA NA NA NA NA 1.91 NA NA NA NA NA NA 1.6 NA MW-36 15-Oct-20 51 4.8J 3.8J 0.27J 2.6J 5.5 7.OJ MW-36 31-Mar-21 65 21 2.81 12 0.97J 4.9J 14 12 MW-36 (dissolved) 31-Mar-21 NA NA NA NA NA 5.7 NA NA NA NA NA NA NA NA NA NA M W-36 11-Nov-21 46 1.31 2.4J 6.6J MW-36 30-Mar-22 83 17J 191 7.4J 20J 21J MW-36 (dissolved) 30-Mar-22 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA MW-36 12-Oct-22 60 0.201 3.5J 1.51 4.2J 0.32J 2.8J 5.5 9.4J MW-36 4-Apr-23 69 0.161 5.6 1.41 5.1 0.39J 0.13J 3.OJ 6.3 9.9J CDIN Page 13 of 31 June 2023 Smith Table 4a Detected Groundwater Constituents - Metals April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Notes: 1. All units are in micrograms per liter (parts per billion). 2. * - The upper tolerance limits (UTL) were calculated as part of the North Wake Unlined Alternate Source Demonstration and were approved by the Solid Waste Section on August 17, 2020. 3. (3) - Monitoring wells were not sampled due to an insufficient volume of water in the well. 4. dup - Duplicate Sample 5.1 - Indicates the analytical result is an estimated concentration between the method detection limit and the limit of quantitation. 6. S - Matrix spike/matrix spike duplicate failure 7. B - The analyte concentration detected in the method blank was greater than the method detection limit. 8. D - Dilution greater than 1 9. Monitoring wells MW-28, -28d, -33, and -35 are sampled yearly during the spring event. 10. Dissolved metal samples were collected to evaluate the influence of turbidity on total metal concentrations. 11. NA - Not Analyzed Concentration exceeds the 15A NCAC 02L .0202 (North Carolina 2L) or UTL. Indicates the result is below the detection limit. CDM Smith Page 14 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 15 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 16 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 17 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 18 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 19 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 20 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 21 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 22 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 23 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 24 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 25 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 26 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 MW-34 26-Apr-12 0.60J 0.621 0.601 1.2 1.81 14 9 7.6 2.2 3.3 0.92J MW-34 17-Apr-13 0.56J 0.60J 0.52J 1.1 1.8J 13 9.1 7.6 2.1 2.6 0.70J 0.191 MW-34 15-Apr-14 0.501 0.991 0.41J 1.0 1.4J 14 7.5 4.1J 1.0 2.2 0.591 MW-34 29-Apr-15 0.85J 0.35J 0.51J 0.65J 1.5 1.7J 18 0.341 10 7.2 1.3 3.0 0.64J 1.7J MW-34 21-Apr-16 0.77J 0.71J 1.9 2.OJ 17 0.30J 11 6.4 2.3 1.01 MW-34 20-Apr-17 0.75J 0.65J 1.4 2.6J 13 0.51J 12 9.3 2.4 2.9 1.2 MW-34 13-Apr-18 0.57J 0.44J 2.1J 8.2 12 9.7 1.8 2.1 0.77J MW-34 25-Apr-19 0.65 0.56 1.4 12 8.2 7.1 1.4 0.79 = 1.6 MW-34 6-Nov-19 0.42J 0.61 1.1 1.4 6.8 7.7 -- 6.6 1.3 0.72 MW-34 4-F6-20 0.47J 0.41J 1.2 1.6 6.1 12 -- 8.5 1.9 2.1 0.71 MW-34 8-Apr-20 0.67 0.54 1.5 2.1 9.1 11 -- 9.9 1.9 2.6 0.91 MW-34 30-Jul-20 0.52 0.64 1.2 2.2 7.6 8.7 -- 8.4 1.5 1.9 1.0 MW-34 15-Ott-20 0.41J 0.51 1.2 1.9 6.7 9.4 -- 4.4 1.9 2.2 0.80 MW-34 31-Mar-21 0.43J 7.0 3.3 -- 1.4 0.87 1.3 MW-34 11-Nov-21 0.49J 0.56 1.2 7.2 9.5 -- 5.9 1.6 1.9 0.74 0.481 MW-34 30-Mar-22 0.53 0.52 1.1 1.6 8.8 12 -- 1-1 1.6 2.3 0.57 MW-34 12-Ott-22 0.45J 0.51 1.0 5.6 7.6 -- 4.9 1.3 1.5 0.62 MW-34 4-Apr-23 0.62 0.42J 1.5 1.5 8.0 11 4.5 1.6 2.1 0.54 MW-34d 25-Apr-12 0.771 0.931 MW-34d 16-Apr-13 0.83JJ 1.11 MW-34d 15-Apr-14 0.46J 0.99J 3.41 2.71 0.96J 0.58J 0.76J 0.75J MW-34d 28-Apr-15 0.27J 0.42J 0.65J 0.70J 3.1J 2.3J 2.1J 0.54J 0.67J 0.38J MW-34d 21-Apr-16 0.79J 0.66J 2.0 2.11 17 0.331 30 1.1 MW-34d 20-Apr-17 0.49J 1.0J 3.1J 2.9J 0.78J 0.85J 0.59J MW-34d 11-Apr-18 1.71 1.41 0.57J MW-34d 23-Apr-19 2.0 1.9 0.80 0.45J 0.52 MW-34d 6-N0v-19 0.40J 0.75 2.9 2.4 -- 0.93 0.48J 0.55 MW-34d 4-Feb-20 0.58 0.96 1.9 -- MW-34d 8-Apr-20 0.43J 1.5 1.7 -- 0.59 MW-34d 30-Jul-20 0.76 1.8 3.2 -- 0.46J 0.48J 0.57 MW-34d 15-0tt-20 0.55 1.5 1.9 -- 0.54 MW-34d 31-Mar-21 4.1JL 0.45J 2.3 2.2 -- 1.0 0.41J MW-34d 10-Nov-21 0.42J 0.59 1.8 3.6 -- 0.65 0.65 MW-34d 29-Mar-22 1.3 2.5 - 0.451 MW-34d 11-Oct-22 0.74 1.9 -- MW-34d 4-Apr-23 1.0 2.2 - Smith Page 27 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 28 of 31 June 2023 Table 4b Detected Groundwater Constituents - Volatile and Semi -Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Notes. 1. All units are in micrograms per liter (parts per billion(. 2. dup - Duplicate Sample 3. n) - Monitoring wells were not sampled due to an insufficient volume of water in the well. 4. J - Indicates the analytical result is an estimated concentration between the method detection limit and the limit of quantitation. 5. B -The analyte concentration detected in the method blank was greater than the method detection limit. 6. L - Laboratory control spike/laboratory control spike duplicate failure 7. H -The analyte was out of holding time. B. (—) - Not Analyzed. 1,4-Dioxane was removed from the sampling program for all wells on June 26, 2019, with the exceptions of MW-6, -8, and -9, due to two consecutive non -detect events. Concentration exceeds the 15A NCAC 02L.0202 (North Carolina 2Q. -Indicates the result is below the detection limits. Smith Page 29 of 31 June 2023 Table 4c Detected Surface Water Constituents - Metals and Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Smith Page 30 of 31 June 2023 Table 4c Detected Surface Water Constituents - Metals and Volatile Organic Compounds April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Notes: 1. All units are in micrograms per liter (parts per billion). 2. uI - A Standard for total chromium has not been established. The value provided is for chromium (III). 3. INS - No Standard 4. 14) - North Carolina 15A NCAC 02B (NC 28) Fish Consumption Standard 5.151- North Carolina In -Stream Target Value Freshwater Aquatic Life Standard 6. (6) - NC 2B Freshwater Aquatic Life Standard 7. lil - North Carolina In -Stream Target Value Fish Consumption Standard 8.1 - Indicates the analytical result is an estimated concentration between the method detection limit and the limit of quantitation. 9. B - The analyte concentration detected in the method blank was greater than the method detection limit. Concentration exceeds the NC 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. Smith Page 31 of 31 June 2023 Table 5 Constiuents Exceeding Standards April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Facility Permit Number Monitoring April 2023 Parameters Exceeding the North Carolina 2L Monitoring April 2023 Parameters Exceeding the North Carolina 2L Well Code or Upper Tolerance Limit Well Code or Upper Tolerance Limit 9209-MSWLF-1984 MW-11 None Detected MW-28 None Detected 9209-MSWLF-1984 MW-11d None Detected MW-28d Antimony 9209-MSWLF-1984 MW-5R Cobalt* MW-29d bis(2-ethylhexyl) phthalate 9209-MSWLF-1984 MW-6 None Detected MW-30 Not Sampled (3) 9209-MSWLF-1984 MW-6d None Detected MW-31 Not Sampled (3) 9209-MSWLF-1984 MW-7 Cobalt* MW-31d Antimony 9209-MSWLF-1984 MW-8 Cobalt*, 1,4-Dioxane, Vinyl Chloride MW-32 None Detected 9209-MSWLF-1984 MW-8d None Detected TB-1a Not Sampled (3) 9209-MSWLF-1984 MW-9 Cadmium, Cobalt*, Benzene, 1,4-Dichlorobenzene, 1,4-Dioxane, Vinyl Chloride TB-1a deep None Detected 9209-MSWLF-1984 MW-10 Tetrachloroethene, Vinyl Chloride MW-33 None Detected 9209-MSWLF-1984 MW-10d None Detected MW-34 1,1-Dichloroethane, Tetrachloroethene 9209-MSWLF-1984 MW-22 Not Sampled (3) MW-34d None Detected 9209-MSWLF-1984 MW-23 None Detected MW-35 Tetrachloroethene 9209-MSWLF-1984 MW-23d None Detected MW-36 Vinyl Chloride 9209-MSWLF-1984 MW-24 Not Sampled (3) MW-36d None Detected Notes: 1. * - Upper Tolerance Limit - Calculated as part of the North Wake Unlined Alternate Source Demonstration and were approved by the Solid Waste Section on August 17, 2020. 2. Bold - Indicates a 1 flag detection in which the analytical result is an estimated concentration between the method detection limit and the limit of quantitation. 3. (3) - MW-22, -24, -30, -31, and TB-1a were dry during the April 2023 sampling event. CDM Smith Page 1 of 1 June 2023 Table 6 Geochemical Data April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - 9209-MSWLF-1984 MW-5R 24-Apr-12 192.5 5.72 1.48 <2 <70 -- <0.43 <0.2 <0.54 -- -- 2.2J 10.0 1.1 110 3.41 <0.01 321D <0.046 <0.04 <0.24 <0.87 <0.62 <O.048 <0.057 <0.061 o 2.4 MW-5R 22-Oct-12 96.1 6.20 2.22 <2 13 -- 1.64 <0.2 <0.54 -- -- 3.118 4.3J 1.4 190 51 <0.01 375D <0.046 <0.031 <0.031 <0.078 <0.095 <0.052 <0.063 <0.01 9.1 MW-5R 17-Apr-13 110.1 6.46 0.73 <4 <16 -- 0.31J <0.061 <0,069 -- -- 1.4 9.07 1.4 135 2.11 <0.4 180 0* <0.5 <1 <0.5 <0.5 <0.25 0.381 MW-5R 16-Oct-13 132.5 6.08 1.88 <4 <16 -- 2.3 <0.061 <0,069 -- -- 1.70 9.90 1.1 184 2.98 <0.4 210B 0.2* <0.5 <1 <0.5 <0.5 <0.25 0.82 MW-5R 16-Apr-14 139.7 5.48 3.09 (1) <16 -- <1.3 <0.61 <0.069 -- -- 1.4 9.35 0.7J 11.5 1.3 <0.4 180 0* <0.5 <1 <0.5 <0.5 <0.25 1.2 MW-5R 12-Nov-14 -116.7 6.74 1.41 (1) <16 -- 1.1J <0,61 <0,069 -- -- 2.1 6.25 <0,09 211 2.98 0.4JB 130 0* <0.5 <1 <0.5 <0.5 <0.25 11 MW-5R 30-Apr-15 14.4 5.39 2.41 <2 <16 -- <0.30 <0,61 <0,069 -- -- 1.6 8.00 0.91 62.1 1.5 <0.4 120 0* <0.5 <1 <0.5 <0.5 <0.25 2.8 MW-5R 15-Oct-15 156.1 6.38 2.12 <2.0 <16 -- 1.9 <0.061 <0,069 -- -- 2.8 0,137 1.0 272 9.5 0.5J 110 0* <0.50 <1.0 <0.50 <0.50 <0.020 2.4 MW-5R 21-Apr-16 116.7 5.54 1.36 <2.0 <16 -- <0.30 <0.061 <0,069 -- -- 1.6 3.65 0.91 39.1 1.1 <0.4 110 0.5* <0.50 <3.0 <0.50 <0.50 <0.020 14.0 MW-5R 14-Sep-16 109.2 5.88 1.99 <2.0 <10 -- 4.2J <10 <10 -- -- 2.6 1.8 0.56) 220 3.48 <3.0 430 0.5* <0.10 <0.30 <0.20 <0.20 <0.10 <0.10 <0.10 3.9 MW-5R 20-Apr-17 94.2 6.29 1.30 <2.0 <30 -- 3.6 <30 <30 -- -- 2.6 1.6 1.1 200 1.1 <1.0 350 0* <1.o <1.0 <2.0 <2.0 <1.0 <1.0 <1.o 1.6 MW-5R 20-Sep-17 -29.0 6.60 2.58 <2.0 55 -- 4,100D <10 <10 -- -- 220D 0.23 0.67 350 11D <2.5 990 5.0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 0.26 3.0 MW-5R 11-Apr-18 40.9 5.90 1.56 <2.0 <10 -- <10 <10 <10 -- -- 2.5 3.6 0.96) 300E 2.2 <3.0 130 0* <.Mo <0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 2.7 MW-5R 24-Oct-18 52.8 6.33 0.24 <2.0 <20 -- 11B <10 <10 -- -- 4.6 0.064 1.6 260 2.6 <1.0 300 0* <0.10 <0.10 <0.20 <0.20 <0. 10 <0. 10 <0.10 4.6 MW-5R 22-Apr-19 179.2 4.83 2.27 <2.0 <20 -- <10 <10 <10 -- -- 1.8 5.1 <1.0 <20 0.54J <1.0 71 0* <0.10 <0.10 <0.20 <0.20 <0. 10 <0. 10 <0.10 <1.0 MW-5R 6-Nov-19 229.2 6.11 1.98 <2.0 <20 -- 17B <10 <10 -- 8,900 6.6 0.23 1.1 120 4.4 <1.0 470 0* <0.10 <0.10 <0.20 <0.20 <0. 10 <0. 10 <0.10 2.5 MW-5R 4-Feb-20 179.2 4.83 2.27 -- 13,OOOC 2,300 1,700D <50 <50 30,000 6,300 -- 0.23 -- 150 <3.0 -- 4,500 2.5* 520.0 49.0 6.5 3.7 4.3 230.0 1.0 -- MW-5R 8-Apr-20 37.1 5.26 0.82 >82(1" 2,800D 860 3100 <SO <SO 85,000 6,300 4.9 <0.020 760D 410 <1.0 1.1 4,000 2.5* 760dq,.' 87d 8.8d <0.20 23d 230d 7.6d 12 MW-5R 30-Jul-20 -55.9 6.04 1.21 1,200D 1,200D 930 8,500D <50 <50 120,000 6,900 -- <o.o2o -- -- <1.0 -- 1,100 3.0* 250.0 34.0 9.8 <5.0 5.6 38.0 7.3 -- MW-5R 15-Oct-20 -28.2 6.16 0.53 >100"I 920 730 4,400BD <10 <10 120,000 7,600 BAD 0.12BJD 210D 390 <10 <1.0 970 5.0* 180.0 7.71 <1.2 <1.1 <1.1 7.71 <1.2 33 MW-5R 31-Mar-21 -76.2 6.16 0.13 100'0' 280 290 7,000BD <10 <10 84,000 5,000 3.41D 0.027JD 58 270 <5.0 <1.0 750 4.5* 63 <0.58 <0.58 <0.53 <0.56 4.31 <0.60 2.9 MW-5R 11-Nov-21 -45.5 6.53 0.42 21(131 170 350 5,900E <10 <10 88,000 5,500 6.3D <0.10 41.7 300 15.0 <1.0 490 5.0* 5.7 <0.058 <0.058 1.1 <0.056 <0.053 <0.060 1.7J MW-5R 30-Mar-22 -42.3 6.38 0.82 16 59 170B 3,000B <2.5 <2.5 41,000 3,500 2.3 0.020 12 170 <13 <3.0 320 6.5* 0.46J <0.058 0.0621 0.381 <0.056 <0.053 <0.060 1.41 MW-5R 11-Oct-22 -69.9 6.38 0.61 13 57 150 5,100BH 110 110 68,000D 4,600 5.5 <0.20 15 260 <1.0 <1.0 830 3.5* 2.51 <0.58 <0.58 2.11 <0.56 <0.53 <0.60 5.3 MW-5R 4-Apr-23 -66.5 6.58 0,68 12 42 1,400 13,OOOBD 110 110 60,000D 3,900 4.5 <0.10 9.9 230 <1.0 <1.0 27 2.0* 0.73 <0.058 0.0711 <0.053 <0.056 <0.053 <0.060 3.4 MW-6 24-Apr-12 168.6 5.85 2.14 <2 32 -- 5,660D <0.2 <0.54 -- -- 97 0.251 4.4 190D 3.51 <0.01 549D <0.046 <0.04 <0.24 <0.87 <0.62 0.56 1.7 <0.061 2.6 MW-6 22-Oct-12 -134.6 6.34 4.33 <2 100 -- 732D <0.2 <0.54 -- -- 160BD <0.025 21 430D 11J 0.029 725D 3.6 <O.031 <0.031 <0.078 26 <0.052 30 <0.01 5.9 MW-6 17-Apr-13 -158.3 6.25 0.91 <4 <16 -- 16 <0.061 <0.069 -- -- 54.4 0.181 3.5 105 2.82 <0.4 110 1.4* <0.5 <1 <0.5 <0.5 <0.25 0.76 MW-6 16-Oct-13 12.9 6.32 1.81 <4 40 -- 45 <0.061 <0.069 -- -- 93 0.161 5.2 136 2.63 <0.4 98B 5.4* <0.5 <1 <0.5 <0.5 <0.25 0.93 MW-6 16-Apr-14 43.1 5.99 1.81 (1) <16 -- 51 <0.061 <0.069 -- -- 40.3 0.42 1.6 40.2 1.5 <0.4 69 0.5* <0.5 <1 <0.5 <0.5 <0.25 1.3 MW-6 12-Nov-14 -121.4 6.81 0.87 (1) 74 -- 1,400 <0.061 <0.069 -- -- 184 0.091 14.4 607 47.3 <0.4 180 1.5* <0.5 <1 <0.5 <0.5 <0.25 7.3 MW-6 30-Apr-15 -52.3 6.05 2.01 <2 <16 -- 23 <0.061 <0.069 -- -- 50.9 0.161 2.6 192 5.9 <0.4 95 0.5* <0.5 <1 <0.5 <0.5 <0.25 2.5 MW-6 14-Oct-15 58.9 6.68 2.39 <2.0 60 -- 0.62J <0.061 <0.069 -- -- 208 0.017 14.7 422 19.7 0.4 UX 87 0* 2.1 <1.0 <0.50 <0.50 <0.020 2.4 MW-6 20-Apr-16 38.7 6.53 1.53 <2.0 <12 -- 0.32J <0.061 <0.069 -- -- 58.5 0.37 2.3 164 4.1 <0.4 62 1.5* <0.50 <1.0 <0.50 <0.50 0.151 12 MW-6 14-Sep-16 11.0 6.42 1.40 <2.0 44 -- 3.7J <10 <10 -- -- 210D 0.037 11 390 13D <1.0 470 1.5* <0.30 <0.30 <0.20 <0.20 <0.10 <0.10 <0.10 3.8 MW-6 20-Apr-17 119.3 6.70 2.16 <2.0 22 -- 4.2J <10 <10 -- -- 130 0.46 6.4 250 11 <1.0 350 0* <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.0 22 MW-6 21-Sep-17 -59.0 7.54 2.87 <2.0 31 -- <10 <SO <SO -- -- 140 0.069 30 430 19 <1.0 520 2.0* <0.30 <0.30 <0.20 <0.20 <0.10 <0.10 <0.10 3.4 MW-6 12-Apr-18 13.0 6.34 1.74 <2.0 15 -- 140 <10 <10 -- -- <10 1.5 5.1 140B 5.5 <1.0 150 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 3.6 MW-6 24-Oct-18 49.6 6.64 0.60 3.6 37 -- 1,900B <10 <10 -- -- 160 <0.020 12 590 20 <1.0 590 1.0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 10 MW-6 22-Apr-19 100.4 6.12 0.51 5.3 <20 -- 1,800 <SO <SO -- -- 74 1.5 2.8 220 4.1 <1.0 450 1.0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 <1.0 MW-6 6-Nov-19 39.3 6.38 1.11 <2.0 33 -- 56B <10 <10 -- -- 180 0.48HD 14 410 7.7 <1.0 750 1.0* <0.10 <0.10 0.76 <0.10 <0.10 <0.10 <0.10 3.0 MW-6 7-Apr-20 79.2 5.85 3.66 <2.0 <20 -- 42B <SO <SO -- -- 78 0.57 2.5 150 5.4 <1.0 220 0.5* <0.30 <0.30 <0.20 <0.10 <0.10 <0.10 <0.10 4.3 MW-6 15-Oct-20 -29.1 6.06 2.08 <2.0 22 -- 260 <10 <10 -- -- 120D 1.8BD 7.6 210 7.61D <1.0 350 2.0* 3.21 <0.58 <0.58 <0.53 <0.56 0.54J <0.60 <0.49 MW-6 31-Mar-21 117.4 5.43 1.75 <2.0 <20 -- 100 <10 <10 -- -- 68 0.92 2.7 140 3.7 <1.0 350 0* 0.24J <0.058 <0.056 <0.053 <0.056 <0.053 <0.060 <0.98 MW-6 10-Nov-21 74.8 6.52 2.60 <2.0 24 -- 83 <10 <10 -- -- 130 18EHD 8.5 310 13D <1.0 350 0.5* 2.61 <0.58 0.591 <0.53 <0.56 <0.53 <0.60 1.11 MW-6 29-Mar-22 239.0 6.35 1.44 <0.18 245 -- 3.181 <2.5 <2.5 -- -- 120 7.1H 7.4 410 6.8 <1.0 520 0* <1.2 <0.58 0.611 <0.53 <0.56 <0.53 <0.60 0.75J MW-6 11-0ct-22 89.2 6.75 1.64 <2.0 30 -- 9.681 <10 <30 -- -- 160 48HD 11 410 8.8 <1.0 500 0.5* 1.91 0.701 1.4J 2.5J <0.56 <0.53 <0.60 0.791 MW-6 5-A r-23 257.3 6.56 6.19 <2.0 <20 9.281 <10 <30 72 5.8D 4.2 360 4.5 <1.0 470 0* 2.01 <0.58 0.751 <0.53 <0.56 <0.53 <0.60 3.2 MW-8 24-Apr-12 161.7 5.64 1.67 <2 <10 -- 1,870D <0.2 <0.54 -- -- 12 0.19J 0.95J 74 2.6J <0.01 324D <0.046 <0.04 <0.24 <0.87 <0.62 <O.048 <0.057 <0.061 2.0 MW-8 22-Oct-12 128.4 5.86 2.11 <2 <30 -- 477D <0.2 <0.54 -- -- 14B 0.32J 0.820J 77 3.1J <0.01 323D <0.046 <0.031 <0.031 <0.078 1.1 <0.052 <0.063 0.011 9.8 MW-8 17-Apr-13 96.8 6.23 0.48 <4 <16 -- 520 0.14J 0.11 -- -- 16.9 0.2J 1.4 86.8 1.49 <0.4 180 0.9* <0.5 <1 <0.5 <0.5 <0.25 0.72 MW-8 16-Oct-13 146.8 5.79 1.74 <4 <16 -- 430 0.111 <0.069 -- -- 19.7 0.18J 1.5 86.8 1.57 <0.4 200B 0.8* <0.5 <1 <0.5 <0.5 <0.25 0.85 MW-8 16-Apr-14 122.9 5.79 0.19 (1) <16 -- 180 <0.60 <0.069 -- -- 23.7 0.18J 1.3 87.7 1.7 <0.4 230 0* <0.5 <1 <0.5 <0.5 <0.25 1.4 MW-8 12-Nov-14 -84.6 6.09 0.79 (1) 20 -- 320 0.13J 0.17J -- -- 29.4 0.12J 1.5 95.5 2.2B 0.4JB 160 0* <0.5 <1 <0.5 <0.5 <0.25 17 MW-8 30-Apr-15 22.5 5.62 1.85 <2 17J -- 160 <0.061 0.11J -- -- 44.0 0.11J 2.8 132 2.5 <0.4 180 0* <0.5 <1 <0.5 <0.5 <0.25 4.1 MW-8 15-Oct-15 113.1 5.93 1.63 <2.0 17J -- 150 <0.061 <0.069 -- -- 44.9 0.007J 2.3 114 4.2 0.5J 130 0* 0.681 <1.0 <0.50 <0.50 <0.020 2.0 MW-8 21-Apr-16 81.5 5.99 1.86 <2.0 <12 -- 110 <0.061 <0.069 -- -- 39.6 <0.04 2.6 123 2.4 <0.4 150 0* <0.50 <1.0 <0.50 <0.50 <0.020 15 MW-8 14-Sep-16 116.9 5.75 1.77 <2.0 6.71 -- 640 <30 <30 -- -- 45 0.021 1.9 120 2.3B <1.0 370 0* <0.30 <0.10 <0.20 <0.20 <0.30 <0.30 <0.10 3.8 MW-8 20-Apr-17 113.7 5.97 1.25 <2.0 8.31 -- 180 <10 <10 -- -- 37 0.069 1.8 110 0.98J <1.0 300 0* <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.0 1.6 MW-8 20-Sep-17 154.0 6.41 1.78 <2.0 9.3 -- 150 <10 <10 -- -- 44 0.055 2.4 120 1.5 <1.0 320 0* <0.30 <0.10 <0.20 <0.20 <0.30 <0. 10 <0.10 4.4 MW-8 12-Apr-18 25.6 5.79 1.21 2.2 <10 -- 150 <10 <10 -- -- 45 0.035 2.2 140B 1.2 <1.0 150 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 2.8 MW-8 24-Oct-18 68.9 5.87 0.10 <2.0 <20 -- 200B <10 <30 -- -- 49 <0.020 2.8 130 2.2 <1.0 180 0.5* <0.30 <0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 3.4 MW-8 22-Apr-19 55.7 5.94 1.29 <4.0 <20 -- 350 <10 <30 -- -- 78 0.042 5.1 170 1.6 <1.0 770 1.0* <0.10 0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 <1.0 MW-8 6-Nov-19 116.9 6.07 0.49 <2.0 71 -- 410B <10 <30 -- -- 29 0.016J 3.6 110 2.0 <1.0 340 0.5* 0.14 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 1.5 MW-8 7-Apr-20 68.9 5.84 3.80 <2.0 <20 -- 76 <30 <30 -- -- 43 0.028 1.8 130 2.1 <1.0 170 1.0* <0.30 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 2.1 MW-8 15-Oct-20 -19.3 5.86 0.49 <2.0 <20 -- 590 <30 <30 -- -- 81 <0.020 5.1 150 1.2 <1.0 240 1.5* 0.35J <0.058 <0.058 <0.053 <0.056 <0.053 <0.060 0.49J MW-8 31-Mar-21 58.0 5.75 0.23 <2.0 <20 -- 150 <30 <30 -- -- 130 <0.10 3.4 210 1.0 <1.0 280 1.0* 1.7J <0.29 <0.29 <0.26 <0.28 <0.26 <0.30 2.1 MW-8 10-Nov-21 67.1 6.19 1.05 <2.0 <20 -- 490 <30 <30 -- -- 70 <0.020 4.2 170 1.9 <1.0 250 1.0* 0.21J <0.058 0.077J <0.053 <0.056 <0.053 0.080J 2.1 MW-8 29-Mar-22 51.1 6.03 2.36 <0.18 <20 -- 150B <2.5 <2.5 -- -- 76 0.35H1 4.5 180 1.5 <1.0 340 0* 0.21J <0.058 <0.058 0.42J <0.056 <0.053 <0.069 0.921 MW-8 11-Oct-22 52.5 5.92 0.64 <2.0 <20 -- 320B <30 <30 -- -- 79 <0.20 6.0 190 2.1 <1.0 430 0.5* 1.81 <0.58 <0.58 <0.53 <0.56 <0.53 <0.60 0.831 MW-8 5-Apr-23 59.1 6.18 0.49 <2.0 <20 400B <30 <30 82 <0.10 5.3 210 2.0 <1.0 400 1.5* 1.7J <0.58 <0.58 <0.53 <0.56 <0.53 1 <0.60 2.4 COM Page 1 of 3 June 2023 Smith Table 6 Geochemical Data April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - 9209-MSWLF-1984 MW-9 o o 25-Apr-12 94.8 5.95 3.11 5.4 34 75 75 -- 2,810D <0.2 1.591 -- -- 18 0.0791 6.1 250D 2.81 <0.01 503D 7.8 o <0.24 <0.87 <0.62 <O.048 1.7 <0.061 -- MW-9 23-Oct-12 83.4 6.72 8.77 <2 61 -- 5.47 <0.2 <0.54 -- -- 17B <0.025 3.2 120 8.81 <0.01 16.6 <0.230<0.031 <0.078 <0.095 <0.052 0.840 0.017MW-9 17-Apr-13 91.3 6.88 6.84 3.1 22 -- 8.5 <0.061 <0,069 -- -- 17.1 <0.03 3.5 130 7.42 <0.4 10 2.1* <1 <0.5 <0.5 <0.25MW-9 16-Oct-13 165.7 6.88 7.89 <4 28 -- 0.531 <0.061 <0,069 -- -- 20.4 0.171 2.9 117 5.60 <0.4 27B 0* 7<0.031 <1 <0.5 <0.5 <0.25MW-9 16-Apr-14 160.2 6.44 3.69 (1) 17J -- 17 <0.061 <0,069 -- -- 18.5 0.151 3.1 127 4.8 <0.4 39 0* <1 <0.5 <0.5 <0.25MW-9 12-Nov-14 33.5 6.80 5.67 (1) 30 -- 1.8 <0.061 <0,069 -- -- 22.7 0.101 <0,09 136 3.98 0.4JB 28 0* <1 <0.5 <0.5 <0.25MW-9 29-Apr-15 20.6 6.57 9.69 2.8 17J -- 2.9 <0.061 <0,069 -- -- 19.2 <0.03 3.8 156 3.6 <0.4 27 0* <1 <0.5 <0.5 <0.25 -- MW-9 15-Oct-15 132.2 6.65 4.66 6.5 <16 -- <0.30 <0.061 <0,069 -- -- 25.4 0,040 2.0 171 5.4 <0.4 53 0* <0.50 <1.0 <0.50 <0.50 <0.020 -- MW-9 20-Apr-15 75.9 6.81 5.40 <2.0 <12 -- 7.8 <0.061 <0,069 -- -- 18.2 0.051 1.7 182 3.4 <0.4 46 0* <0.50 <1.0 <0.50 <0.50 <0.020 -- MW-9 13-Sep-16 151.7 6.72 7.15 <4.0 8.01 -- - - - -- -- 25 0,052 1.6 200 3.8 <1.0 - 1.0* - - - - - -- MW-9 19-Apr-17 130.8 6.93 7.28 <2.0 <10 -- 6.1BJ <SO <10 -- -- 24 0.0096) 1.8 210 2.1 <1.0 240 1.0* <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.o -- MW-9 21-Sep-17 140.0 7.57 6.01 <2.0 <10 -- <10 <10 <10 -- -- 24 0.056 1.9 200 2.8 <1.0 220 1.0* <0.10 <0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 -- MW-9 11-Apr-18 41.4 6.79 7.50 <2.0 <10 -- <10 <10 <10 -- -- 23 0.080 1.8 190B 2.2 <1.0 180 1.5* <0.10 <0.10 <0.20 <0.20 <0. 10 <0. 10 <0.10 -- MW-9 25-Oct-18 51.1 7.07 8.83 2.6 <20 -- 6.9BJ <10 <10 -- -- 22 <0.020 2.2 210 2.5 1.5 190 0* <0.10 <0.10 <0.20 <0.20 <0. 10 <0. 10 <0.10 -- MW-9 25-Apr-19 102.7 6.46 1.63 <2.0 <20 -- 1,500 <10 <10 -- -- 11 <0.020 3.7 270 1.4 <1.0 680 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 -- MW-9 5-Nov-19 105.4 6.50 1.55 <2.0 <20 -- 530B <30 <30 -- -- 30 <O.30 3.5 370 2.7 <1.0 990 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 -- MW-9 7-Apr-20 37.1 6.11 0.86 2.4"" <20 -- 1,800B <10 <10 -- -- 31 0.0079J 4.4 430 3.2 <1.0 570 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-9 15-Oct-20 -36.7 6.12 0.76 7.4") 21 -- 1,400 <10 <10 -- -- 41 <0.020 6.0 440 2.0 <1.0 570 0* 0.5 <0.058 0.111 0.0601 <0.056 0.066J <0.060 -- MW-9 31-Mar-21 -4.4 6.01 0.19 4.3") 36 -- 1,800 <10 <10 -- -- 45 <O.10 9.4 490 0.611 <1.0 820 0* 0.27J 0.141 <0.058 <0.053 <0.056 <0.053 <0.060 -- MW-9 10-Nov-21 -36.3 6.39 0.66 2.6"v) 29 -- 3,100EHD <10 130 -- -- 53 <0.020 9.0 250 0.98B1 3.0 750 0* 0.26J <0.058 <0.058 <0.053 <0.056 <0.053 0.092J -- MW-9 30-Mar-22 -4.4 6.21 0.08 2.4 30 -- 1,600B <2.5 <2.5 -- -- 45 0.37HJC 9.1 550 5.0 <3.0 720 1.5* <0.12 <0.058 <0.058 0.0591 <0.056 <0.053 <0.060 -- MW-9 11-Oct-22 -23.8 6.24 0.52 2.2 20 -- 1,100B <10 <10 -- -- 39 10.020 6.1 500 0.861 <1.0 6M) 1 0.5* 1.71 <0.58 <0.58 <0.53 <0.56 <0.53 <0.60 -- MW-9 4-Apr-23 -10.6 6.29 3,44 4.4 35 -- 2,000B <10 <30 -- -- 48 <O.30 9.1 510 0.711 <1.0 1,300 2.5* 1.61 <0.58 <0.58 <0.53 <0.56 <0.53 <0.60 -- MW-10 25-Apr-12 127.9 5.41 2.62 <2 30 -- 10,300D <0.2 <0.54 -- -- 3.5J <0.025 3.3 120 3.11 <0.01 832D 0.17 0.26 <0.24 0.59 0.17 <O.048 <0.057 <0.061 -- MW-10 23-Oct-12 99.2 5.68 2.94 <2 28 -- 8,220D <0.2 <0.54 -- -- 3.71B <0.025 3.6 120 2.41 <0.01 646D 0.083 0.087 <0.031 <0.078 <0.095 <0.052 <0.063 0.0111 -- MW-10 17-Apr-13 113.9 6.08 2.93 <4 <16 -- 920 <0.061 <0.069 -- -- 2.71 <0.03 1.5 132 0.75 <0.4 370 1.4* <0.5 <1 <0.5 <0.5 <0.25 -- MW-10 16-Oct-13 84.8 5.65 4.05 <4 191 -- 3,100 <0.061 <0.069 -- -- 2.74 <0.03 0.91 117 0.73 <0.4 300B 1.8* <0.5 <1 <0.5 <0.5 <0.25 -- MW-10 16-Apr-14 68.9 5.71 3.11 (1) <16 -- 3,200 <0.061 <0.069 -- -- 3.4 <0.03 2.3 129 0.71 <0.4 400 1.5* <0.5 <1 <0.5 <0.5 <0.25 -- MW-10 12-Nov-14 10.9 5.84 1.81 (1) 27 -- 3,900 0.094J 0.111 -- -- 3.0 <0.03 2.5 147 1.1B <0.4 360 2.0* <0.5 <1 <0.5 <0.5 <0.25 -- MW-10 29-Apr-15 30.6 5.56 2.82 3.1 <16 -- 1,300 <0.061 <0.069 -- -- 3.4 <0.03 3.0 184 0.91 <0.4 320 2.0* <0.5 <1 <0.5 <0.5 <0.25 -- MW-10 14-Oct-15 89.3 5.74 2.44 5.6 <16 -- 1,200 <0.061 <0.069 -- -- 3.3 <0.002 1.0 140 <1.8 <0.4 250 1.5* 0.67J <1.0 <0.050 <0.50 <0.020 -- MW-10 20-Apr-16 30.9 5.79 2.34 6.5 16J -- 1,200 <0.061 <0.069 -- -- 3.4 <0.04 1.6 128 <0.06 <0.4 200 1.0* 0.57J <1.0 <0.20 <0.50 <0.020 -- MW-10 13-Sep-16 28.2 5.44 1.61 4.3 10 -- - - - -- -- 3.6 0.024 <1.0 160 <1.0 <1.0 - 4.5* - - - - - -- MW-10 19-Apr-17 125.9 5.74 3.39 8.3 <10 -- 4,800B <10 <10 -- -- 3.6 0.0141 1.2 160 <1.0 <1.0 720 3.0* <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.0 -- MW-10 22-Sep-17 118.0 6.20 1.90 <2.0 <SO -- 1,100 <SO <SO -- -- 3.0 0.017 1.9 110 <1.0 <1.0 440 3.0* <0.30 <0.30 <0.20 <0.20 <0.10 <0. 10 <0.10 -- MW-10 11-Apr-18 44.1 5.60 0.71 <2.0 9.41 -- 750 <10 <10 -- -- 3.0 0.089 0.9 88B 0.43J <1.0 140 2.5* <0.30 <0.30 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-10 25-Oct-18 74.0 5.61 3.64 5.5 <20 -- 3,200 <10 <10 -- -- 3.2 <0.020 1.3 120 <1.0 <1.0 450 3.5* <0.30 <0.30 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-10 25-Apr-19 7.9 5.47 0.39 5.1"" <20 -- 4,200D <10 <10 -- -- 3.9 <0.020 2.9 130 <1.0 <1.0 1,300 3.0* 0.34 <0.30 <0.20 <0.20 <0.30 <0.10 <0.30 -- MW-10 5-Nov-19 44.3 5.85 0.80 5.4 <20 -- 4,300BD <10 <10 -- -- 3.5 0.0161 1.2 120 0.49J <1.0 770 3.0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-10 7-Apr-20 22.3 5.50 0.42 4.8"" <20 -- 3,300D <10 <10 -- -- 3.8 0.0171 1.5 120 <1.0 <1.0 350 2.5* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-10 15-Oct-20 -33.9 5.64 2.61 3.8"' <20 -- 1,600 <10 <10 -- -- 3.3 0.032B <1.0 88 <1.0 <1.0 210 3.0* 0.37J <0.058 <0.058 <0.053 <0.056 <0.053 <0.060 -- MW-10 31-Mar-21 167.3 5.11 0.19 <2.0 <20 -- 18 <30 <30 -- -- 3.1 2.0 2.1 27 0.321 <3.0 220 2.5* 0.22J <0.058 <0.058 <0.053 <0.056 <0.053 <0.060 -- MW-10 10-Nov-21 153.4 5.87 0.38 <2.0 <20 -- 350 <10 <10 -- -- 3.1 0.59 0.71J 57 0.63B1 <1.0 130 2.5* 0.21J <0.058 0.20J <0.053 <0.056 <0.053 <0.060 -- MW-10 30-Mar-22 158.7 5.63 0.18 <0.18 <20 -- 330 <2.5 <2.5 -- -- 2.8 0.61 <1.0 75 0.59J <1.0 190 2.0* <0.12 <0.058 <0.058 0.063J <0.056 <0.053 <0.060 -- MW-10 12-Oct-22 130.2 5.80 0.76 <2.0 <20 -- 4.5BJ <10 <10 -- -- 2.7 0.38HL 1.6 100 4.OH <1.0 490 2.5* 1.6J <0.58 <0.58 <0.53 <0.56 <0.53 <0.60 -- MW-10 5-A r-23 99.5 5.52 2.23 2.7 <20 8,500BD <10 <10 2.9 0.13D <1.0 140 0.281 <1.0 530 2.0* 0.471 <0.058 0.221 <0.053 <0.056 0.0641 <0.060 MW-11 25-Apr-12 112.2 5.47 6.22 <2 <10 -- <0.43 <0.2 <0.54 -- -- 3.1J 0.086J 0.76J 22 1.7J <0.01 161D <0.046 <0.04 <0.24 <0.87 0.13J <O.048 <0.057 <0.061 -- MW-11 23-Oct-12 237.1 5.82 7.22 <2 13 -- <0.43 <0.2 <0.54 -- -- 3.7JB 0.150J 1.5 27 2.1J <0.01 147D <0.046 <0.031 <0.031 <0.078 <0.095 <0.052 <0.063 <0.01 -- MW-11 17-Apr-13 102.3 5.94 5.73 <4 <16 -- <0.30 <0.061 <0.069 -- -- 2.62 0.23 1.1 33.1 0.69 <0.4 100 0.8* <0.5 <1 <0.5 <0.5 <0.25 -- MW-11 16-Oct-13 211.6 5.49 7.94 <4 <16 -- <0.30 <0.061 <0.069 -- -- 3.16 0.26 0.7J 34.8 0.66 <0.4 82B 0.4* <0.5 <1 <0.5 <0.5 <0.25 -- MW-11 16-Apr-14 198.8 5.62 5.63 (1) 34 -- 0.59 <0.061 <0.069 -- -- 3.4 0.36 0.5J 38.9 0.7J <0.4 110 0* <0.5 <1 <0.5 <0.5 <0.25 -- MW-11 12-Nov-14 116.3 5.80 4.68 (1) 57 -- <0.30 <0.061 <0.069 -- -- 4.1 0.46 O.SJ 36.4 0.91E 0.5JB 82 0* <0.5 <1 <0.5 <0.5 <0.25 -- MW-11 30-Apr-15 20.1 5.52 7.18 <2 <16 -- <0.30 <0.061 <0.069 -- -- 3.9 0.43 0.9J 35.8 0.91E <0.4 82 0* <0.5 <1 <0.5 <0.5 <0.25 -- MW-11 15-Oct-15 196.8 5.91 5.70 <2.0 <16 -- <0.30 <0.061 <0.069 -- -- 3.6 0.480 0.3J 34.9 <1.8 <0.4 66 0* <0.50 <1.0 <0.50 <0.50 <0.020 -- MW-11 21-Apr-16 135.3 5.72 5.75 <2.0 <12 -- <0.30 <0.061 <0.069 -- -- 4.0 0.53 0.5J 33.9 0.7J 0.5JB 75 1.5* <0.50 <1.0 <0.50 <0.50 <0.020 -- MW-11 1-Sep-16 149.9 5.56 6.49 15 <10 -- - - - -- -- 5.1 0.81 <1.0 42 <1.0 <1.0 - 1.5* - - - - - -- MW-11 20-Apr-17 142.3 5.87 4.82 <2.0 <10 -- 2.71 <10 <10 -- -- 4.8 0.89 <1.0 36 <1.0 <1.0 150.0 0.5* <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.0 -- MW-11 22-Sep-17 244.0 6.39 4.55 <2.0 <10 -- <30 <10 <10 -- -- 5.2 0.88 <1.0 47 <1.0 <1.0 130 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 -- MW-11 13-Apr-18 46.3 5.71 5.74 <2.0 <30 -- <30 <30 <30 -- -- 5.4 0.89 <1.0 46B 0.27J <1.0 75 0* <0. 10 <0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 -- MW-11 25-Oct-18 44.6 6.02 5.97 <2.0 <20 -- 2.5BJ <10 <30 -- -- 5.9 0.95 <1.0 46 <1.0 <1.0 82 0* <0. 10 <0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 -- MW-11 25-Apr-19 87.8 5.91 5.94 3.4"" <20 -- <10 <10 <SO -- -- 5.8 0.94 1.9 49 <1.0 <1.0 170 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0. 10 <0.10 -- MW-11 5-Nov-19 183.2 6.16 6.46 2.1 <20 -- <30 <10 <30 -- -- 5.5 0.90 <1.0 42 0.26J <1.0 230 0* 0.51 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-11 8-Apr-20 144.7 5.88 6.44 6.2"" <20 -- 3.2J <10 <10 -- -- 5.7 0.94 <1.0 44 0.31J <1.0 100 0* 0.16'la� <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-11 14-Oct-20 33.2 5.84 6.33 16("' <20 -- 2.8BJ <10 <10 -- -- 5.7 0.88 <1.0 43 <1.0 <1.0 86 0* 0.43J <0.058 <0.058 <0.053 <0.061 <0.053 <0.060 -- MW-11 31-Mar-21 132.4 5.57 6.58 <2.0 <20 -- 42 <10 <10 -- -- 5.6 0.77 <1.0 38 <1.0 <1.0 110 0* 0.50J <0.12 <0.12 <0.11 <0.11 <0.11 <0.12 - MW-11 11-Nov-21 982.0 6.07 7.33 <2.0 <20 -- <10 <30 <30 -- -- 5.1 0.71D <1.0 35 <1.0 <1.0 130 0* 0.24J <0.058 <0.058 <0.053 <0.056 <0.053 <0.060 - MW-11 30-Mar-22 257.8 5.69 4.71 <0.18 <20 -- <2.5 <2.5 <2.5 -- -- 5.1 0.88 <1.0 42 <0.25 <1.0 180 0* <0.12 <0.058 <0.058 <0.053 <0.056 <0.053 <0.060 - MW-11 13-Oct-22 181.4 5.92 6.91 <2.0 <20 -- <10 <10 <30 -- -- 5.5 0.79L5 <1.0 39 0.28H1 <1.0 180 0* 0.261 <0.058 <0.058 0.20J <0.056 <0.053 <0.060 - MW-11 5-Apr-23 231.3 5.99 7.01 <2.0 <20 4.OBJ <30 <30 5.6 0.85 <S.0 46 <1.0 <S.0 120 0* 0.461 <0.058 0.0621 <0.053 <0.056 0.059J <0.060 C�t Page 2 of 3 June 2023 Table 6 Geochemical Data April 2023 Semi -Annual Sampling Event North Wake Unlined Landfill - 9209-MSWLF-1984 MW-34 6-Nov-19 195.8 5.63 1.52 <2.0 <20 -- 260B <10 <10 -- 7,300 11 0.14 1.0 35 0.471 <1.0 330 0* 0.12 0.29 <0.20 <0.20 <0.10 0.21 <0.10 MW-34 4-Feb-20 157.2 5.15 1.25 -- <20 74 470 <10 <10 470 8,700 -- 0.20 -- 24 <1.0 -- 570 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 MW-34 8-Apr-20 96.9 5.21 0.78 <2.0 <20 85 350 <10 <10 3,900 8,300 14 0.14 <1.0 40 0.50J 1.4 120 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 MW-34 30-Jul-20 -13.4 5.30 0.18 -- <20 150 370 <10 <10 6,700 8,000 -- 0.10 -- -- <1.0 -- 110 0* <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 MW-34 15-Oct-20 -22.1 5.29 0.91 <2.0 <20 99 300 <10 <10 610 8,200 14 0.091B <1.0 36 <1.0 <1.0 120 0* 0.43J <0.058 <0.058 <0.053 <0.056 <0.053 <0.06( MW-34 31-Mar-21 197.4 4.57 1.80 <2.0 <20 140 26 <10 <10 6,100 24,000 54 0,020 <3.0 <20 5.7 <3.0 190 0* 1.11 <0.29 <0.29 <0.26 <0.28 <0.26 <0.30 MW-34 11-14ov-21 194.1 5.63 0.39 <2.0 <20 77 310 <10 <10 1505 11,000 15D 0.10D 0.65J 35 1.5 <1.0 210 0* 0.23J <0.058 0.0611 <0.053 <0.056 <0.053 <0.06( MW-34 30-Mar-22 200.4 5.15 0.20 <0.18 <20 78B 280E <2.5 <2.5 5,900 11,000 21 0,110 1.1 35 0.54J <1.0 350 0* 0.25J <0.058 0.211 0.331 <0.056 <0.053 <0.06( MW-34 11-Oct-22 235.0 5.35 0.63 <2.0 <20 <25 320B <10 <10 5105 9,700 13 0.12B <3.0 34 0.38) <1.0 210 0* 1.71 0.611 <0.58 <0.53 <0.56 <0.53 <0.60 MW-34d 6-Nov-19 466.9 6.08 0.61 2.8 <20 -- 3.OB1 <10 <10 -- 12,000 9.2 1.0 1.6 65 1.4 <3.0 150 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 MW-34d 4-Feb-20 347.9 5.88 0.28 -- <20 130 26 <10 <10 550 12,000 -- 2.0 -- 52 3.2 -- 550 0* <0. 10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 MW-34d 8-Apr-20 129.4 5.85 1.40 2.6j1s1 <20 120 3.OJ <10 <10 110 13,000 10 1.0 1.2 70 1.8 <1.0 87 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 MW-34d 30-Jul-20 -13.3 5.83 0.93 -- <20 120 2.81 <10 <10 120 12,000 -- 1.7 -- -- 5.9 -- 100 0* <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 MW-34d 15-0ct-20 -22.1 5.82 1.39 3.6j1' <20 150 4.OJ <10 <10 86 14,000 11 1.313 <1.0 75 2.2 <1.0 88 0* 0.43J <0.058 <0.058 <0.053 <0.056 <0.053 <0.06( MW-34d 31-Mar-21 223.4 5.46 0.35 <2.0 <20 110 6.7J <30 <30 160 8,600 9.9 0.50 <3.0 59 1.2 <3.0 110 0* 0.27J <0.058 <0.058 <0.053 <0.056 <0.053 <0.06( MW-34d 10-14ov-21 428.9 6.09 0.83 <2.0 <20 150 <10 <10 <10 <50 13,000 16 2.0 <1.0 68 5.3 <1.0 96 0* 0.25J <0.058 <0.058 <0.053 <0.056 <0.053 <0.06( MW-34d 29-Mar-22 220.2 5.73 1.48 <0.18 <20 25 5.9B1 <2.5 <2.5 17 3.8H <3.0 63 14 <3.0 27 0* <0. 12 <0.058 <0.058 0.0541 <0.056 <0.053 <0.06( MW-34d 11-Oct-22 207.7 5.90 2.20 <2.0 <20 180 4.OB1 <10 <10 140 13,000 16 3.213 <1.0 66 18 <1.0 190 0* 2.01 <0.58 <0.58 <0.53 <0.56 <0.53 <0.60 MW-36 25-Apr-12 122.2 5.71 2.94 5.2 29 -- 186D <0.2 <0.54 -- -- 5.9 0.5J 1.1 60 3.91 <0.01 336D <0.046 <0.04 <0.24 <0.87 0.0731 <0.048 <0.057 <0.061 -- MW-36 23-Oct-12 139.1 5.92 8.39 <2 <30 -- 39.6 <0.2 <0.54 -- -- 6B 0.4901 1.7 67 3.91 <0.01 196D <0.046 <0.031 <0.031 <0.078 <0.095 <0.052 <0.063 <0.01 -- MW-36 17-Apr-13 118.1 6.05 2.44 12 <16 -- 6.4 <0.061 <0.069 -- -- 5.59 0.59 1.1 66.3 2.19 <0.4 98 0.8* <0.5 <1 <0.5 <0.5 <0.25 -- MW-36 16-Oct-13 188.5 5.82 3.89 <4 38 -- 9.8 <0.061 <0.069 -- -- 5.50 0.73 1.1 59.2 2.19 <0.4 81B 1.5* <0.5 <1 <0.5 <0.5 <0.25 -- MW-36 16-Apr-14 165.3 5.76 3.08 (1) 71 -- 17 <0.061 <0.069 -- -- 5.8 0.86 0.61 55.6 2.3 <0.4 110 0* <0.5 <1 <0.5 <0.5 <0.25 -- MW-36 12-Nov-14 96.2 5.76 2.23 (1) 37 -- 25 <0.061 <0.069 -- -- 5.8 0.98 <0.09 55.3 2.68 <0.4 83 0* <0.5 <1 <0.5 <0.5 <0.25 -- MW-36 30-Apr-15 1.6 5.69 3.15 4.10 <16 -- 3.6 <0.061 <0.069 -- -- 5.8 0.89 1.4 58.4 2.3 <0.4 81 0* <0.5 <1 <0.5 <0.5 <0.25 -- MW-36 15-Oct-15 167.8 5.97 3.78 <2.0 33 -- 2.5 <0.061 <0.069 -- -- 5.5 0.704 1.2 59.3 3.0 0.4J 72 0* <0.50 <1.0 <0.50 <0.50 <0.020 -- MW-36 20-Apr-16 125.4 5.80 2.49 12.0 <12 -- 2.5 <0.061 <0.069 -- -- 5.9 0.60 1.0 53.7 2.3 <0.4 76 2.0* <0.50 <1.0 <0.50 <0.50 <0.020 -- MW-36 13-Sep-16 176.6 5.13 2.15 <2.0 <10 -- - - - -- -- 6.7 0.81 <1.0 55 2.5 <1.0 - 0.5* - - - - - -- MW-36 20-Apr-17 143.0 5.79 1.77 <2.0 <10 -- 5.OJ <10 <10 -- -- 6.9 0.79 0.70J 51 1.3 <1.0 190.0 2.0* <1.0 <1.0 <2.0 <2.0 <1.0 <1.0 <1.0 -- MW-36 22-Sep-17 143.0 6.00 1.95 <2.0 <10 -- 2.9 <10 <10 -- -- 7.3 0.66 0.78 63 2.4 <1.0 220.0 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-36 13-Apr-18 45.2 5.81 1.35 <2.0 <10 -- <10 <10 <10 -- -- 6.9 0.66 0.83J 58B 3.3 <1.0 71.0 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-36 25-Oct-18 98.4 5.53 0.86 <2.0 20 -- 3.9B1 <10 <10 -- -- 7.8 0.64 1.5 60 1.8 <1.0 190 0* <0. 10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-36 25-Apr-19 123.4 5.77 0.94 <2.0 <20 -- <10 <10 <10 -- -- 8.9 0.62 1.0 61 2.3 <1.0 280 0* <0. 10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-36 5-Nov-19 146.4 6.00 0.57 <2.0 <20 -- 4.5B1 <10 <10 -- -- 8.8 0.60 1.0 58 1.9 1.1 390 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-36 7-Apr-20 63.9 5.69 0.74 <2.0 <20 -- 5.6B1 <10 <10 -- -- 9.1 0.57 <1.0 59 2.0 <1.0 120 0* <0.10 <0.10 <0.20 <0.20 <0.10 <0.10 <0.10 -- MW-36 15-Oct-20 -33.1 5.67 0.67 <2.0 <20 -- 5.5J <10 <10 -- -- 9.6 0.4013 <1.0 63 2.5 <1.0 150 0* 4.11 <0.58 <0.58 <0.53 <0.56 <0.53 <0.60 -- MW-36 31-Mar-21 125.9 5.22 1.93 <2.0 <20 -- 47 <10 <10 -- -- 9.3 0.16 <1.0 56 2.9 1.3 140 0* 1.21 <0.29 <0.29 <0.26 <0.28 <0.26 <0.30 -- MW-36 11-Nov-21 14.6 5.95 0.78 <2.0 <20 -- 37 <10 <10 -- -- 11D 0.21D 1.2 88 3.5 <1.0 290 0* 0.271 <0.058 0.0591 <0.053 <0.056 <0.053 <0.060 -- MW-36 30-Mar-22 112.7 5.68 0.08 <0.18 <20 -- 14 <2.5 <2.5 -- -- 11D 0.42H1 1.4 86 <2.5 <1.0 280 0* <0 12 <0.058 <0.058 <0.053 <0.056 <0.053 <0.060 -- MW-36 11-Oct-22 41.0 5.79 0.60 <2.0 75 -- 89B <10 <10 -- -- 12 0.2313 1.2 110 4.3 <1.0 260 0* 1.81 <0.58 <0.58 <0.53 <0.56 <0.53 <0.60 -- MW-36 4-Aor-23 81.5 5.82 0.56 <2.1 <20 -- 86B <10 <10 -- -- 14 0.26D 1.7 110 4.0 <1.0 470 0* 0.42J <0.058 0.0641 0.181 <0.056 <0.053 <0.060 -- Notes: 1. All units are in milligrams per liter ((mg/L) parts per million), unless otherwise noted. 2. µg/L- micrograms per liter (parts per billion) 3. CaCO3 - Calcium Carbonate 4. MW-11 is a background well for the North Wake Unlined Landfill. 5. * - Field analysis performed using a HACH kit. 6. (--) - Not Measured 7.1- Indicates the analytical result is an estimated concentration between the method detection limit and the limit of quantitation. 8. B -The analyte concentration detected in the method blank was greater than the method detection limit. 9. D, d - Analyzed as dilution. 10. U% - The compound was analyzed for, but not detected. 1 mL HNO3 was added to MW-6 for metals upon receipt to get the pH to less than 2. 11. (1) - BOD was measured following dilution and did not meet the oxygen depletion criterion of at least 2 mg/L. The elevated BOD concentrations are a result of laboratory error and were not used to evaluate natural attenuation for the April and November 2014 sampling events. 12. l"l 1 flag - The average BOD for MW-9, -10, -36, and -11 is lower than the valid range. 13. (-) Samples not collected and analyzed for the spring 2016 sampling event. 14. H -The analyte was analyzed outside of holding time. 15l"I - 7 flag - The seed correction factor was above the method range. Results may be biased low. 16. l.sl- 75 flag - The sample became depleted. The reported result was computed using the greatest dilution and the least amount of sample. 17. l"l- M3 flag - The matrix spike duplicate sample recovery was outside laboratory control limits. 18. lssl - MS flag - The matrix spike sample recovery was outside laboratory control limits. 19. 47 flag- Indicates a blank depletion less than 0.20 mg/L and a seed correction factor out of range. 20. 1201- 4 flag - The method blank result was higher than the method required limit of 0.20 mg/L. 21. E -The quantitation of the compound exceeded the calibration range. 22. L- Laboratory control spike/laboratory control spike duplicate failure 23. S - Matrix spike/matrix spike duplicate failure �- Blank cells indicate no data collected SmithPage 3 of 3 June 2023 N LEGEND wE MW-28 MW-28d Groundwater Monitoring Well X/ 219.01 219.54 • Surface Water Sample Location 4N • Injection Well Location MW-22 Air Sparging Well Area > 218.83 Potentiometric Contour 218 — (dashed where inferred) `'' • Contour Interval = 2 Feet z1 SW-8 ' �M9/ MW-36 MW-10�1�21IW258 21061 229.06 MW-3.6d rMW-29d 21065 ,1231.16 W10dM25.65 rI SW-7 N N� N sP4 N ' �r'N`MW-6 V CN c ' i 207.42 MW-30 tN °•-D t MW-6d 231.32.:. N r v 1 \ 205.85 N N 04 O O N N N IIMW-23d 227.88 MW-23 / 227.81 MW-31d 227.74 r MW-31 227.95 MW-2[ TB 1a 226.30., TB-1 a deep 225.01 ,'Unlined Landfill I NWIVI IBiobarrier Injection , ;Area t NWIW. ' ' i NWIW-3 \220.59 t` U, IfNWIW-4 WIW-5 NWIW-6 `a NWIW-8 MW-32 ! , 226.13 SW-3 1I , MW-7 N MW-8 221.70 214.82 MW-8d 213.71 MW-33 210.71 MW-34 208.79 MW-34d 208.60 MW-5R 209.84 44. Map Data Source: February 2021 Aerial Photograph, MW-35 207.12 County, North FarneR1 300 250 c 200 M L Q N L 150 50 Figure 2 MW-6 - Total Volatile Organic Compounds Concentration Trend North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 t Vl Ln 1.0 l0 I� n w w M M O O rl ri N N M M-;t t Vl Ln O lD I, n M M M M O O rl ri N N M M�-;t Ln Ln LD lD I, n W M M M O O rl e 4 N N M �OIOI�OITTOI��OIOIOOOOOOOOOOOOOOOOOOOOrl1l1l1l1l1- 1� N N N N N N N U L �..i L L }� L }� i U L }U L }U L }U L L L }U L L }U L }U L }U L }U L L }U i }+ L JU L }U L L }� L L L) L �..� L }U L U L Q c.� Q u Q u Q c.i Q :.: Q c.i Cl :.i Q u Q :.i Q :.: Q �.� Cl :.i Q �.� Q :.i Cl c.i � �.� Q :.i Q �.� � c.� Cl :.) Q �.� Cl c.i Q �..% � <.� Q :.) Q <.� Q c.i Q :.� Q c.i 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 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 O Q O Q O Q Date �Smith 20 18 16 14 c 0 C 0 +w M c 8 v U C 0 U 4 2 n Figure 3 MW-6d - Total Volatile Organic Compounds Concentration Trend North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 i--I r-I fV N M M -:T -:T Ill Ln l0 l0 r- r- W W M M O O rq r-I N N M M :T :T Ln Ln to l0 r, r, w w M M O O a--1 r-I N N M O O O O O O O O O O O O O O O O O O r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I N N N N N N N L L L }�.L L �J L Q U Q U U Q U Q U Q U Q U Q U Q U Q U Q U Q U U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q U Q a 0 Q 0 a 0 a 0 a 0 Q 0 a 0 a 0 a 0 Q 0 a 0 0 0 a 0 a 0 a 0 Q 0 a 0 a 0 a 0 Q 0 a 0 a 0 a Date Smith Figure 4 MW-9 - Total Volatile Organic Compounds Concentration Trend North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 900 Completion of the Perimeter Migration Control System Air Sparging System Landfill Cap (July Operational (January 2002) Operational (August 800 1997) 2012) 700 Addition of 1,4- Dioxane to the c600 Sampling Program _ (July 2018) L 500 a c 400 ra c v U C u 300 200 100 0 IZT -zt Ln Ln l0 1,0 I- n 00 00 O1 M O O r-I i--I N N M M IzT Ln Ln l0 l0 I� n 00 00 0) M O O r-I ri N N M M -:T zt Ln Ln l0 l0 I- n 00 00 Ol M O O r-I r-I N N M Ql C l C l T T T T 9) T T T T 0 0 0 O O O O O O O O O O O O O O O O O L }.Q U U VQ}i U..U C U }U.i 0-L U..QL }UJ QL }i.0-L VU QL U C }U.i 0-L }U.i 0-L U..QL U..0-L }V.i 0-L U..Qi }U.i 0-L }i.0-L }V.i 0-L U..0-L .i.0-L }U.0-L U..C }U.i 0-L }V.i L 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 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 O Q O Q O Q Date Smith 50 45 40 35 c 0 v 30 Q- LA Q- 25 C 0 20 v U C 0 U 15 10 5 a Figure 5 MW-36 - Total Volatile Organic Compounds Concentration Trend North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Air Sparging System Operational (August 2012) Addition of 1,4-Dioxane to the Sampling Program (July 2018) M M M M 00 O O r-I r-I r-I .--I N N N N M M M M��-;t I:T Ln u1 Ln Ln lO l0 iO lO I- r- n r- W W W W M M M M O O O O r-I r-I r-I r-I N N N N M M 99 O O r-I r-I r-I r-I C L U C L U C L U C C U C L U C L U C L U C C U C L U C L U C L U L U C C U C L U C L � Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q 7 U� Q a,0,a,0,a,0,a,0,a,0,a,0,a,0,a,0,a,0,a,0,a,0,a,0,a,0,a,0,a Date Smith 35 30 25 c 0 EL 20 H L Q 10 Figure 6 MW-36d - Total Volatile Organic Compounds Concentration Trend North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 m m m m o o O o -I r-I c-I ri N N N N M M M M -:t -tT -:i, m Ln m m LD to w lD I- n r, n W w W w m m m m o o o o r-I r-I r -I -4 N N N N M M 0 0 0 0 ry r- ry ry 1- r- r- I 1- r- I l i IV 1- c r- r- 1i r- r- r- 1- 1- r- r- I l i r- r- ry IV 1- c N N N N N N N N N N N N N N C -�+ C i �+ C L ++ C " ++ C " ++ C L �+ C L ++ C " ++ C " ++ C " �+ C L �+ C i ++ C " ++ C " ++ C " Q 7 U, Q 7 U M Q 7 U M Q 7 U M Q 7 U M Q 7 U M Q 7 U M Q 7 U M Q 7 U M Q 7 U M Q 7 U M Q 7 U M Q 7 U M Q 7 U M Q a,o,a,o,a,o,a,o-< 0-<,0-< 0-a,0-< 0-<,0-a,0,a,0-< 0 - < 0 - < Date Smith 70 50 c 0 Q. 40 LA L Q C 0 30 c d U C 0 U W 10 Figure 7 MW-5R - Volatile Organic Compounds Concentration Trends North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 Total Volatile Organic Compounds —0--Tetrachloroethene fTrichloroethene f1,1-Dichloroethane tcis-1,2-Dichloroethene —4--Methvlene Chloride Addition of 1,4-Dioxane to the Sodium EVO Injection Sampling Program (July 2018) Lactate (December 2019) Injection (October 2019) O r-1 i--I r1 ri N N N N M M M M Z zt Ln Ln Ln ill 110 l0 110 l0 I- r- r- r- W w w w M M M M O O O O r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I N N N N N N N N N N N N N N �J u L (�aU QL U QL U aL U QL U QL U QL U aL U QL U QL U � QL � U aL U Q o,Q,o,a,o,a,o,Q,o,a,o,a,o,a,o,Q,o,a,o,a,o,a,o,Q,o,L a Date Smith M c 40 a Q. LA L Q- 30 C 0 .w M c a� U u 20 10 M Figure 8 MW-34 - Volatile Organic Compounds Concentration Trends North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 —Total Volatile Organic Compounds Addition of 1,4- Sodium EVO Injection Dioxane to the Lactate (December 2019) tTetrachloroethene Sampling Program Injection Trichloroethene (July 2018) (October — —1,1-Dichloroethane 2019) Methylene — —cis-1,2-Dichloroethene Chloride ri a-i r-I N N N N M M M M u1 u1 Ln Ln l0 l0 l0 l0 r" r" r- r- w w w w M M M M O O O O i--I r-I r-I ri N N N N M M r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I N N N N N N N N N N N N N N Q 7 U M ii 7 U M Q 7 U M Q 7 U (c Q 7 U f6 Q 7 U f6 Q 7 U (c Q 7 U f6 Q 7 U (u Q 7 U (u Q 7 U f6 Q 7 U(� a a o, a o, a o, a o, a o, a o, a o, a o, a o, a o, a o, a o, Q Date Smith Figure 9 MW-34d - Volatile Organic Compounds Concentration Trends North Wake Unlined Landfill - Permit Number 9209-MSWLF-1984 45 Total Volatile Organic Compounds Addition of 1,4- Sodium EVO Injection Dioxane to the Lactate (December 2019) tTetrachloroethene Sampling Program Injection 40 (July 2018) (October ❑ Trichloroethene 2019) f1,1-Dichloroethane 35 cis-1,2-Dichloroethene O Methylene Chloride c 30 L CL 25 L Q 2 20 U C u 15 10 NIS <�L r-1 r-I r-1 N N N N M M M M1:T Ln Ln Ln Ln l0 1.0 l0 l0 r- n r- r- w w w w M M M M O O O O -1 r-1 r-1 r-1 N N N N M M r-I r-I r-I r-I r-I r-I r-I r-I rl ri ri ri ri rl ri ri ri ri ri rl ri ri ri rl ri rl ri ri ri ri ri rl ri ri ri N N N N N N N N N N N N N N Q 7 U M ii 7 U M Q 7 U (6 Q 7 U (c Q 7 U f6 Q 7 U f6 Q 7 U (c Q 7 U f6 Q 7 U (u Q 7 U (u Q 7 U f6 Q 7 (,.) (.0 a a o, a o, a o, a o, a o, a o, a o, a o, a o, a o, a o, a o, Q Date Smith Appendix A Analytical Data aceAnalytical Report of Analysis CDM Smith 5400 Glenwood Avenue Suite 400 Raleigh, NC 27612 Attention: Mathew Colone Project Name: North Wake Unlined Landfill Lot Number:YD05007 Date Completed:05/12/2023 05/14/2023 10:14 PM Approved and released by: Project Manager II: Cathy S. Dover =w�4 aecRFo���A16 TNI / AM Amflvue Acm^rmm Fvu rj (' 4eOfFAi� ACC R E OI TEO TESTINGL aORlTOAY 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 257 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: YD05007 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 The laboratory control sample (LCS) for analytical batch 72347 exceeded acceptance criteria for the following analyte: Vinyl Chloride (136%). This analyte was biased high and was not detected in the associated samples: YD05007-007, YD05007-009, YD05007-010, YD05007-011, YD05007-012, and YD05007-013. YD05007-007 (MW-32) (Run 1) (Analysis Batch 72347) YD05007-009 (MW-31d) (Run 1) (Analysis Batch 72347) YD05007-010 (MW-23) (Run 1) (Analysis Batch 72347) YD05007-011 (MW-23d) (Run 1) (Analysis Batch 72347) YD05007-012 (MW-35) (Run 1) (Analysis Batch 72347) YD05007-013 (MW-36d) (Run 1) (Analysis Batch 72347) The laboratory control sample (LCS) for analytical batch 72379 exceeded acceptance criteria for the following analytes: Acetone, Acrylonitrile and 2-Butanone. These analytes were biased high and were not detected in the associated samples above the LOQ: YD05007-014, YD05007-015, YD05007-016, YD05007-017, YD05007-018, YD05007-019, YD05007-020, YD05007-021, YD05007-022, YD05007-023, YD05007-024, YD05007-025, YD05007-026, YD05007-027, YD05007-028, and YD05007-029. YD05007-014 (MW-10) (Run 1) (Analysis Batch 72379) YD05007-015 (MW-6) (Run 1) (Analysis Batch 72379) YD05007-016 (MW-8) (Run 1) (Analysis Batch 72379) YD05007-017 (MW-11) (Run 1) (Analysis Batch 72379) YD05007-018 (SW-2) (Run 1) (Analysis Batch 72379) 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 257 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 YD05007-019 (SW-3) (Run 1) (Analysis Batch 72379) YD05007-020 (SW-7) (Run 1) (Analysis Batch 72379) YD05007-021 (SW-8) (Run 1) (Analysis Batch 72379) YD05007-022 (MW-10D) (Run 1) (Analysis Batch 72379) YD05007-023 (MW-6d) (Run 1) (Analysis Batch 72379) YD05007-024 (DUP) (Run 1) (Analysis Batch 72379) YD05007-025 (ME-8d) (Run 1) (Analysis Batch 72379) YD05007-026 (MW-1d) (Run 1) (Analysis Batch 72379) YD05007-027 (MW-29d) (Run 1) (Analysis Batch 72379) YD05007-028 (MW-28d) (Run 1) (Analysis Batch 72379) YD05007-029 (MW-28) (Run 1) (Analysis Batch 72379) The following samples had an air bubble > 6mm in the sample vial: YD05007-015, YD05007-017 and YD05007-031. YD05007-015 (MW-6) (Run 1) (Analysis Batch 72379) YD05007-017 (MW-11) (Run 1) (Analysis Batch 72379) YD05007-031 (EQ Blank) (Run 1) (Analysis Batch 72381) The laboratory control sample (LCS) for analytical batch 72381 exceeded acceptance criteria for Vinyl Chloride (134%). This analyte was biased high and was not detected in the associated sample: YD05007-031. YD05007-031 (EQ Blank) (Run 1) (Analysis Batch 72381) The laboratory control sample (LCS) for analytical batch 72496 exceeded acceptance criteria for the following analytes: Acetone, Methylene Chloride, Acrylonitrile, and 2-Butanone. These analytes were biased high and were not detected in the associated sample: YD05007-030 YD05007-030 (MW-33) (Run 1) (Analysis Batch 72496) Reanalysis of the following samples was performed outside of the analytical holding time for Methylene Chloride due to failure in the original CCV: YD05007-023 and YD05007-024. YD05007-023 (MW-6d) (Run 2) (Analysis Batch 73259) YD05007-024 (DUP) (Run 2) (Analysis Batch 73259) The continuing calibration verification (CCV) associated with samples YD05007-001 and YD05007-002 was outside of criteria for vinyl chloride. Samples were outside of holding time; therefore the data has been reported. YD05007-001 (MW-9) (Run 1) (Analysis Batch 72287) YD05007-002 (MW-36) (Run 1) (Analysis Batch 72287) The continuing calibration verification (CCV) associated with sample YD05007-012 was outside of criteria for dichlorodifluoromethane. The sample was outside of holding time; therefore the data has been reported. YD05007-012 (MW-35) (Run 1) (Analysis Batch 72347) 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 257 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 1,4-Dioxane SIM 8260D The following sample(s) was received with headspace in the sample vial: YD05007-001, YD05007-002, YD05007-003, YD05007-005, YD05007-016, YD05007-0172. YD05007-001 (MW-9) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-002 (MW-36) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-003 (MW-34) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-005 (MW-5R) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-016 (MW-8) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-017 (MW-11) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate Internal standard recoveries in the duplicate and matrix spike (DUP/MS) for batch 72429 were outside the lower control limit. The samples affected: YD05007-001, YD05007-002, YD05007-003, YD05007-004, YD05007-005, YD05007-016, YD05007-017, and YD05007-031. The CCV and LCS associated with BATCH YQ72429 passed acceptance criteria; therefore the data has been reported. YD05007-001 (MW-9) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-002 (MW-36) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-003 (MW-34) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-004 (MW-34d) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-005 (MW-5R) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-016 (MW-8) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-017 (MW-11) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate YD05007-031 (EQ Blank) (Run 1) (Analysis Batch 72429) 1,4-Dioxane (SIM) 1,2-DCA-d4 surrogate Dissolved Gases RSK175 The method blank associated with batch 72481 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 72256 and parent sample YD05007-003 (MW-34), recovered outside the upper control limit. The associated LCS passed acceptance criteria. Nitrate 300.0 The following samples were diluted due to the nature of the sample matrix: YD05007-001, YD05007-005 and YD05007-016. The LOQ has been elevated to reflect the dilution. YD05007-001 (MW-9) (Run 1) (Analysis Batch 71960) Nitrate - N YD05007-005 (MW-5R) (Run 1) (Analysis Batch 71960) Nitrate - N YD05007-016 (MW-8) (Run 1) (Analysis Batch 72051) Nitrate - N Sulfide SM4500 S2-F The sulfide for batch 72342 and parent sample YD05007-003 (MW-34), recovered outside the lower control limit. The associated LCS passed acceptance criteria. The sulfide for batch 72458 and parent sample YD05007-017 (MW-11), recovered marginally outside the lower control limit. The associated LCS passed acceptance criteria. 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 4 of 257 PACE ANALYTICAL SERVICES, LLC SC DHEC No: 32010001 NELAC No: E87653 NC DENR No: 329 NC Field Parameters No: 5639 BOD No sample dilutions resulted in a depletion of at least 2.0 mg/L. The reported BOD/CBOD value is <2.1 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 for sample YD05007-002 (MW-36). YD05007-002 (MW-36) (Run 1) (Analysis Batch 71899) BOD, 5 day For samples: YD05007-001, YD05007-002, YD05007-003, YD05007-004, and YD05007-005 QC bottles 1-10 for BOD_71899 were recorded with initial DO values below the criteria minimum of 8.56 mg/L for setup procedure. YD05007-001 (MW-9) (Run 1) (Analysis Batch 71899) BOD, 5 day YD05007-002 (MW-36) (Run 1) (Analysis Batch 71899) BOD, 5 day YD05007-003 (MW-34) (Run 1) (Analysis Batch 71899) BOD, 5 day YD05007-004 (MW-34d) (Run 1) (Analysis Batch 71899) BOD, 5 day YD05007-005 (MW-5R) (Run 1) (Analysis Batch 71899) BOD, 5 day For samples YD05007-014, YD05007-015, YD05007-016, YD05007-017 QC bottles 2, 4, 5, 6, and 8 for BOD _72001 were recorded with initial DO values below the criteria minimum of 8.56 mg/L for setup procedure. YD05007-014 (MW-10) (Run 1) (Analysis Batch 72001) BOD, 5 day YD05007-015 (MW-6) (Run 1) (Analysis Batch 72001) BOD, 5 day YD05007-016 (MW-8) (Run 1) (Analysis Batch 72001) BOD, 5 day YD05007-017 (MW-11) (Run 1) (Analysis Batch 72001) BOD, 5 day 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 5 of 257 PACE ANALYTICAL SERVICES, LLC Sample Summary CDM Smith Lot Number: YD05007 Project Name: North Wake Unlined Landfill Project Number: Sample Number Sample ID Matrix Date Sampled Date Received 001 MW-9 Aqueous 04/04/20231210 04/05/2023 002 MW-36 Aqueous 04/04/20231245 04/05/2023 003 MW-34 Aqueous 04/04/20231420 04/05/2023 004 MW-34d Aqueous 04/04/20231500 04/05/2023 005 MW-5R Aqueous 04/04/20231540 04/05/2023 006 MW-7 Aqueous 04/04/20231050 04/05/2023 007 MW-32 Aqueous 04/04/20231105 04/05/2023 008 TB-1 a deep Aqueous 04/04/2023 1115 04/05/2023 009 MW-31d Aqueous 04/04/20231130 04/05/2023 010 MW-23 Aqueous 04/04/20231140 04/05/2023 011 MW-23d Aqueous 04/04/20231150 04/05/2023 012 MW-35 Aqueous 04/04/20231335 04/05/2023 013 MW-36d Aqueous 04/04/20231255 04/05/2023 014 MW-10 Aqueous 04/05/2023 0915 04/06/2023 015 MW-6 Aqueous 04/05/20231110 04/06/2023 016 MW-8 Aqueous 04/05/20231242 04/06/2023 017 MW-11 Aqueous 04/05/20231645 04/06/2023 018 SW-2 Aqueous 04/05/20231740 04/06/2023 019 SW-3 Aqueous 04/05/20231800 04/06/2023 020 SW-7 Aqueous 04/05/20231725 04/06/2023 021 SW-8 Aqueous 04/05/20231730 04/06/2023 022 MW-1OD Aqueous 04/05/2023 0955 04/06/2023 023 MW-6d Aqueous 04/05/20231040 04/06/2023 024 DUP Aqueous 04/05/2023 0800 04/06/2023 025 ME-8d Aqueous 04/05/20231310 04/06/2023 026 MW-1d Aqueous 04/05/20231345 04/06/2023 027 MW-29d Aqueous 04/05/20231410 04/06/2023 028 MW-28d Aqueous 04/05/20231440 04/06/2023 029 MW-28 Aqueous 04/05/20231515 04/06/2023 030 MW-33 Aqueous 04/05/20231705 04/06/2023 031 EQ Blank Aqueous 04/05/2023 1455 04/06/2023 032 MW-5R Aqueous 04/05/20231152 04/06/2023 033 MW-6 Aqueous 04/05/20231128 04/06/2023 034 MW-8 Aqueous 04/05/20231242 04/06/2023 (34 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 257 Inorganic non-metals Client:CDM Smith Laboratory ID:YD05007-001 Description: MW-9 Matrix: Aqueous Date Sampled:04/04/2023 1210 Project Name: North Wake Unlined Landfill Date Received: 04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/06/2023 1938 JJM 72016 1 (BOD, 5 day) SM 521OB-2016 1 04/10/2023 1555 HDT 04/05/2023 1847 71899 1 (Chloride) 300.0 1 04/05/2023 1927 SJL 71959 1 (CO2 (calcula) SM 4500-CO2 D 1 04/06/2023 1938 JJM 1 (COD) SM 5220D-2011 1 04/10/2023 1330 GGC 72111 1 (Nitrate - N) 300.0 5 04/05/2023 1946 SJL 71960 1 (Sulfate) 300.0 1 04/05/2023 1927 SJL 71961 1 (Sulfide) SM 4500-S2 F-2011 1 04/11/2023 1201 CVR 72342 1 (TOC) SM 531 OC-2014 1 04/15/2023 0523 DMA 72721 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 510 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 4.4 2.0 0.18 mg/L 1 Chloride 300.0 48 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 1300 27 27 mg/L 1 COD SM 5220D-2011 35 20 20 mg/L 1 Nitrate - N 300.0 0.10 U 0.10 0.025 mg/L 1 Sulfate 300.0 0.71 J 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 1.0 U 1.0 1.0 mg/L 1 TOC SM 531OC-2014 9.1 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-001 Description: MW-9 Matrix: Aqueous Date Sampled:04/04/2023 1210 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0426 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 1.8 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.82 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 1.3 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 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 15 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 5.0 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 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 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.42 J 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-001 Description: MW-9 Matrix: Aqueous Date Sampled:04/04/2023 1210 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0426 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 20 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 94 70-130 104 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD05007-001 Description: MW-9 Matrix: Aqueous Date Sampled:04/04/2023 1210 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 5030B 8260D (SIM) 1 04/13/2023 1205 AMR2 72586 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 11 3.0 1.0 ug/L 2 Run 2 Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 101 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 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 D = Dilution > 1 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 257 Dissolved Gases Client:CDM Smith Laboratory ID:YD05007-001 Description: MW-9 Matrix: Aqueous Date Sampled:04/04/2023 1210 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/11/2023 1245 JM1 72481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 10 U 10 2.5 ug/L 1 74-85-1 RSK - 175 10 U 10 2.5 ug/L 1 74-82-8 RSK - 175 2000 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-001 Description: MW-9 Matrix: Aqueous Date Sampled:04/04/2023 1210 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1522 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00018 J 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-001 Description: MW-9 Matrix: Aqueous Date Sampled:04/04/2023 1210 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1619 BNW 6020B 5 04/13/2023 1522 BNW Prep Date Batch 04/10/2023 1837 72256 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 360 D 25 6.3 ug/L 2 Beryllium 7440-41-7 6020B 0.23 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 4.4 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 7.2 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 16 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.6 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.6 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.55 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 2.8 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 31 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 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 D = Dilution > 1 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 257 Inorganic non-metals Client:CDM Smith Laboratory ID:YD05007-002 Description: MW-36 Matrix: Aqueous Date Sampled:04/04/2023 1245 Project Name: North Wake Unlined Landfill Date Received: 04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/06/2023 1945 JJM 72016 1 (BOD, 5 day) SM 521OB-2016 1 04/10/2023 1559 HDT 04/05/2023 1854 71899 1 (Chloride) 300.0 1 04/05/2023 2043 SJL 71959 1 (CO2 (calcula) SM 4500-CO2 D 1 04/06/2023 1945 JJM 1 (COD) SM 5220D-2011 1 04/10/2023 1331 GGC 72111 1 (Nitrate - N) 300.0 5 04/05/2023 2102 SJL 71960 1 (Sulfate) 300.0 1 04/05/2023 2043 SJL 71961 1 (Sulfide) SM 4500-S2 F-2011 1 04/11/2023 1201 CVR 72342 1 (TOC) SM 531 OC-2014 1 04/15/2023 0534 DMA 72721 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 110 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 <2.1 6 2.0 0.18 mg/L 1 Chloride 300.0 14 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 470 27 27 mg/L 1 COD SM 5220D-2011 20 U 20 20 mg/L 1 Nitrate - N 300.0 0.26 D 0.10 0.025 mg/L 1 Sulfate 300.0 4.0 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 1.0 U 1.0 1.0 mg/L 1 TOC SM 531OC-2014 1.7 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-002 Description: MW-36 Matrix: Aqueous Date Sampled:04/04/2023 1245 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0451 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 1.7 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 2.8 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 5.0 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-002 Description: MW-36 Matrix: Aqueous Date Sampled:04/04/2023 1245 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0451 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 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 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 91 70-130 104 70-130 99 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD05007-002 Description: MW-36 Matrix: Aqueous Date Sampled:04/04/2023 1245 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/12/2023 1350 AMR2 72429 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 2.6 J 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 94 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 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 D = Dilution > 1 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 257 Dissolved Gases Client:CDM Smith Laboratory ID:YD05007-002 Description: MW-36 Matrix: Aqueous Date Sampled:04/04/2023 1245 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/11/2023 1301 JM1 72481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 10 U 10 2.5 ug/L 1 74-85-1 RSK - 175 10 U 10 2.5 ug/L 1 74-82-8 RSK - 175 86 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-002 Description: MW-36 Matrix: Aqueous Date Sampled:04/04/2023 1245 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1525 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00013 J 0.00020 0.000091 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-002 Description: MW-36 Matrix: Aqueous Date Sampled:04/04/2023 1245 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1630 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 69 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.16 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.6 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 1.4 J 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.1 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.39 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 3.0 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 6.3 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 9.9 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 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 D = Dilution > 1 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 257 Inorganic non-metals Client:CDM Smith Laboratory ID:YD05007-003 Description: MW-34 Matrix: Aqueous Date Sampled:04/04/2023 1420 Project Name: North Wake Unlined Landfill Date Received: 04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/06/2023 1952 JJM 72016 1 (BOD, 5 day) SM 521OB-2016 1 04/10/2023 1600 HDT 04/05/2023 1856 71899 1 (Chloride) 300.0 1 04/05/2023 2121 SJL 71959 1 (CO2 (calcula) SM 4500-CO2 D 1 04/06/2023 1952 JJM 1 (COD) SM 5220D-2011 1 04/10/2023 1333 GGC 72111 1 (Nitrate - N) 300.0 5 04/05/2023 2140 SJL 71960 1 (Sulfate) 300.0 1 04/05/2023 2121 SJL 71961 1 (Sulfide) SM 4500-S2 F-2011 1 04/11/2023 1201 CVR 72342 1 (TDS) SM 2540C-2015 1 04/11/2023 0235 CBP 72284 1 (TOC) SM 531 OC-2014 1 04/15/2023 0545 DMA 72721 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 43 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 2.0 U 2.0 0.18 mg/L 1 Chloride 300.0 23 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 280 27 27 mg/L 1 COD SM 5220D-2011 20 U 20 20 mg/L 1 Nitrate - N 300.0 0.21 D 0.10 0.025 mg/L 1 Sulfate 300.0 1.0 U 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 1.0 US 1.0 1.0 mg/L 1 TDS SM 254OC-2015 100 25 25 mg/L 1 TOC SM 531OC-2014 1.0 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-003 Description: MW-34 Matrix: Aqueous Date Sampled:04/04/2023 1420 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0515 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.62 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.42 J 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 1.5 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 1.5 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 8.0 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 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 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 4.5 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 1.6 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 2.1 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.54 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-003 Description: MW-34 Matrix: Aqueous Date Sampled:04/04/2023 1420 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0515 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 95 70-130 102 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD05007-003 Description: MW-34 Matrix: Aqueous Date Sampled:04/04/2023 1420 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/12/2023 1414 AMR2 72429 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 3.0 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 95 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 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 D = Dilution > 1 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 257 Dissolved Gases Client:CDM Smith Laboratory ID:YD05007-003 Description: MW-34 Matrix: Aqueous Date Sampled:04/04/2023 1420 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/11/2023 1317 JM1 72481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 10 U 10 2.5 ug/L 1 74-85-1 RSK - 175 10 U 10 2.5 ug/L 1 74-82-8 RSK - 175 550 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-003 Description: MW-34 Matrix: Aqueous Date Sampled:04/04/2023 1420 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1528 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00013 J 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-003 Description: MW-34 Matrix: Aqueous Date Sampled:04/04/2023 1420 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1739 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 100 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 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.3 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 1.7 J 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 3.0 J 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 1600 S 50 13 ug/L 1 Lead 7439-92-1 6020B 0.51 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 2.9 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Sodium 7440-23-5 6020B 9100 400 150 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 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 13 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 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 D = Dilution > 1 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 257 Inorganic non-metals Client:CDM Smith Laboratory ID:YD05007-004 Description: MW-34d Matrix: Aqueous Date Sampled:04/04/2023 1500 Project Name: North Wake Unlined Landfill Date Received: 04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/06/2023 1958 JJM 72016 1 (BOD, 5 day) SM 521OB-2016 1 04/10/2023 1623 HDT 04/05/2023 1913 71899 1 (Chloride) 300.0 1 04/05/2023 2159 SJL 71959 1 (CO2 (calcula) SM 4500-CO2 D 1 04/06/2023 1958 JJM 1 (COD) SM 5220D-2011 1 04/10/2023 1332 GGC 72111 1 (Nitrate - N) 300.0 5 04/05/2023 2217 SJL 71960 1 (Sulfate) 300.0 1 04/05/2023 2159 SJL 71961 1 (Sulfide) SM 4500-S2 F-2011 1 04/11/2023 1201 CVR 72342 1 (TDS) SM 2540C-2015 1 04/11/2023 0235 CBP 72284 1 (TOC) SM 531 OC-2014 1 04/15/2023 0641 DMA 72721 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 64 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 2.0 U 2.0 0.18 mg/L 1 Chloride 300.0 19 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 180 27 27 mg/L 1 COD SM 5220D-2011 20 U 20 20 mg/L 1 Nitrate - N 300.0 4.3 D 0.10 0.025 mg/L 1 Sulfate 300.0 24 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 1.0 U 1.0 1.0 mg/L 1 TDS SM 254OC-2015 280 25 25 mg/L 1 TOC SM 531OC-2014 1.0 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-004 Description: MW-34d Matrix: Aqueous Date Sampled:04/04/2023 1500 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0540 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 1.0 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 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 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-004 Description: MW-34d Matrix: Aqueous Date Sampled:04/04/2023 1500 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0540 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 93 70-130 103 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD05007-004 Description: MW-34d Matrix: Aqueous Date Sampled:04/04/2023 1500 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/12/2023 1437 AMR2 72429 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 3.0 U 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 96 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 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 D = Dilution > 1 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 257 Dissolved Gases Client:CDM Smith Laboratory ID:YD05007-004 Description: MW-34d Matrix: Aqueous Date Sampled:04/04/2023 1500 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/11/2023 1332 JM1 72481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 10 U 10 2.5 ug/L 1 74-85-1 RSK - 175 10 U 10 2.5 ug/L 1 74-82-8 RSK - 175 7.4 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-004 Description: MW-34d Matrix: Aqueous Date Sampled:04/04/2023 1500 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1530 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-004 Description: MW-34d Matrix: Aqueous Date Sampled:04/04/2023 1500 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1642 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 30 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 7.0 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 21 J 50 13 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Sodium 7440-23-5 6020B 12000 400 150 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 10 U 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 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 D = Dilution > 1 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 257 Inorganic non-metals Client:CDM Smith Laboratory ID:YD05007-005 Description: MW-5R Matrix: Aqueous Date Sampled:04/04/2023 1540 Project Name: North Wake Unlined Landfill Date Received: 04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/06/2023 2005 JJM 72016 1 (BOD, 5 day) SM 521OB-2016 1 04/10/2023 1623 HDT 04/05/2023 1913 71899 1 (Chloride) 300.0 1 04/05/2023 2236 SJL 71959 1 (CO2 (calcula) SM 4500-CO2 D 1 04/06/2023 2005 JJM 1 (COD) SM 5220D-2011 1 04/10/2023 1332 GGC 72111 1 (Nitrate - N) 300.0 5 04/05/2023 2255 SJL 71960 1 (Sulfate) 300.0 1 04/05/2023 2236 SJL 71961 1 (Sulfide) SM 4500-S2 F-2011 1 04/11/2023 1201 CVR 72342 1 (TDS) SM 2540C-2015 1 04/11/2023 0235 CBP 72284 1 (TOC) SM 531 OC-2014 1 04/15/2023 0653 DMA 72721 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 230 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 12 2.0 0.18 mg/L 1 Chloride 300.0 4.5 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 730 27 27 mg/L 1 COD SM 5220D-2011 42 20 20 mg/L 1 Nitrate - N 300.0 0.10 U 0.10 0.025 mg/L 1 Sulfate 300.0 1.0 U 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 1.0 U 1.0 1.0 mg/L 1 TDS SM 2540C-2015 1400 25 25 mg/L 1 TOC SM 531OC-2014 9.9 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-005 Description: MW-5R Matrix: Aqueous Date Sampled:04/04/2023 1540 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0605 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-005 Description: MW-5R Matrix: Aqueous Date Sampled:04/04/2023 1540 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0605 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 92 70-130 101 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD05007-005 Description: MW-5R Matrix: Aqueous Date Sampled:04/04/2023 1540 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/12/2023 1501 AMR2 72429 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 3.0 U 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 90 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 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 D = Dilution > 1 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 257 Dissolved Gases Client:CDM Smith Laboratory ID:YD05007-005 Description: MW-5R Matrix: Aqueous Date Sampled:04/04/2023 1540 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/11/2023 1348 JM1 72481 2 RSK - 175 10 04/11/2023 1824 JM1 72481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane 74-84-0 RSK - 175 10 U 10 2.5 ug/L 1 Ethene 74-85-1 RSK - 175 10 U 10 2.5 ug/L 1 Methane 74-82-8 RSK - 175 13000 BD 100 25 ug/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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-005 Description: MW-5R Matrix: Aqueous Date Sampled:04/04/2023 1540 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1533 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-005 Description: MW-5R Matrix: Aqueous Date Sampled:04/04/2023 1540 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A 2 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1653 BNW 6020B 5 04/14/2023 1242 BNW Prep Date Batch 04/10/2023 1837 72256 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.16 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 36 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Iron 7439-89-6 6020B 60000 D 250 63 ug/L 2 Lead 7439-92-1 6020B 0.39 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 9.0 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Sodium 7440-23-5 6020B 3900 400 150 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 2.9 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 2.6 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-006 Description: MW-7 Matrix: Aqueous Date Sampled:04/04/2023 1050 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0629 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.78 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.53 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 1.1 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-006 Description: MW-7 Matrix: Aqueous Date Sampled:04/04/2023 1050 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0629 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 93 70-130 104 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-006 Description: MW-7 Matrix: Aqueous Date Sampled:04/04/2023 1050 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1536 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-006 Description: MW-7 Matrix: Aqueous Date Sampled:04/04/2023 1050 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1705 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.42 J 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 32 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 8.5 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 16 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-007 Description: MW-32 Matrix: Aqueous Date Sampled:04/04/2023 1105 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231353 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.79 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-007 Description: MW-32 Matrix: Aqueous Date Sampled:04/04/2023 1105 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231353 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 UL 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 91 70-130 102 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-007 Description: MW-32 Matrix: Aqueous Date Sampled:04/04/2023 1105 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1538 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-007 Description: MW-32 Matrix: Aqueous Date Sampled:04/04/2023 1105 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1836 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 14 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.47 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020E 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 2.4 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 8.3 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 2.1 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 6.8 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 4.7 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-008 Description: TB-1 a deep Matrix: Aqueous Date Sampled:04/04/2023 1115 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0046 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 0.56 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-008 Description: TB-1 a deep Matrix: Aqueous Date Sampled:04/04/2023 1115 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 0046 CDA 72287 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 90 70-130 102 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-008 Description: TB-1 a deep Matrix: Aqueous Date Sampled:04/04/2023 1115 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1541 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-008 Description: TB-1 a deep Matrix: Aqueous Date Sampled:04/04/2023 1115 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1847 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.19 J 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 3.2 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 2.2 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.57 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 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 4.3 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 20 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-009 Description: MW-31d Matrix: Aqueous Date Sampled:04/04/2023 1130 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231418 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 2.8 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-009 Description: MW-31d Matrix: Aqueous Date Sampled:04/04/2023 1130 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231418 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 UL 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 93 70-130 105 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-009 Description: MW-31d Matrix: Aqueous Date Sampled:04/04/2023 1130 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1544 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-009 Description: MW-31d Matrix: Aqueous Date Sampled:04/04/2023 1130 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1859 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 1.6 J 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.40 U 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 2.9 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 3.9 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.68 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 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 4.9 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 86 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-010 Description: MW-23 Matrix: Aqueous Date Sampled:04/04/2023 1140 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231443 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-010 Description: MW-23 Matrix: Aqueous Date Sampled:04/04/2023 1140 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231443 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 UL 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 96 70-130 105 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-010 Description: MW-23 Matrix: Aqueous Date Sampled:04/04/2023 1140 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1547 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-010 Description: MW-23 Matrix: Aqueous Date Sampled:04/04/2023 1140 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1910 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 23 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 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 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 2.7 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.3 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 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.2 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 4.5 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-011 Description: MW-23d Matrix: Aqueous Date Sampled:04/04/2023 1150 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231508 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-011 Description: MW-23d Matrix: Aqueous Date Sampled:04/04/2023 1150 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231508 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 UL 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 95 70-130 104 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-011 Description: MW-23d Matrix: Aqueous Date Sampled:04/04/2023 1150 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1600 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-011 Description: MW-23d Matrix: Aqueous Date Sampled:04/04/2023 1150 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1922 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 0.68 J 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.23 J 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 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 1.9 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 4.0 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 8.6 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-012 Description: MW-35 Matrix: Aqueous Date Sampled:04/04/2023 1335 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231533 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 2.6 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 4.2 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 0.84 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.51 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 1.9 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 1.1 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 3.1 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-012 Description: MW-35 Matrix: Aqueous Date Sampled:04/04/2023 1335 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231533 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 UL 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 96 70-130 108 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-012 Description: MW-35 Matrix: Aqueous Date Sampled:04/04/2023 1335 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1603 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-012 Description: MW-35 Matrix: Aqueous Date Sampled:04/04/2023 1335 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 1956 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 38 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 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 1.4 J 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-013 Description: MW-36d Matrix: Aqueous Date Sampled:04/04/2023 1255 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231558 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 U 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 1.8 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 3.0 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-013 Description: MW-36d Matrix: Aqueous Date Sampled:04/04/2023 1255 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/20231558 JWO 72347 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 UL 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 94 70-130 104 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-013 Description: MW-36d Matrix: Aqueous Date Sampled:04/04/2023 1255 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1605 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-013 Description: MW-36d Matrix: Aqueous Date Sampled:04/04/2023 1255 Project Name: North Wake Unlined Landfill Date Received:04/05/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2007 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 2.4 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 13 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.55 J 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 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 2.9 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 40 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 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 D = Dilution > 1 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 257 Inorganic non-metals Client:CDM Smith Laboratory ID:YD05007-014 Description: MW-10 Matrix: Aqueous Date Sampled:04/05/2023 0915 Project Name: North Wake Unlined Landfill Date Received: 04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/06/2023 2012 JJM 72016 1 (BOD, 5 day) SM 521OB-2016 1 04/11/2023 1623 HDT 04/06/2023 2012 72001 1 (Chloride) 300.0 1 04/06/2023 1523 SJL 72050 1 (CO2 (calcula) SM 4500-CO2 D 1 04/06/2023 2012 JJM 1 (COD) SM 5220D-2011 1 04/10/2023 1338 GGC 72111 1 (Nitrate - N) 300.0 5 04/06/2023 1542 SJL 72051 1 (Sulfate) 300.0 1 04/06/2023 1523 SJL 72052 1 (Sulfide) SM 4500-S2 F-2011 1 04/12/2023 1226 CVR 72458 1 (TOC) SM 531 OC-2014 1 04/15/2023 0704 DMA 72721 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 2.7 2.0 0.18 mg/L 1 Chloride 300.0 2.9 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 510 27 27 mg/L 1 COD SM 5220D-2011 20 U 20 20 mg/L 1 Nitrate - N 300.0 0.13 D 0.10 0.025 mg/L 1 Sulfate 300.0 0.28 J 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 1.0 U 1.0 1.0 mg/L 1 TOC SM 531OC-2014 1.0 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-014 Description: MW-10 Matrix: Aqueous Date Sampled:04/05/2023 0915 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2050 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.51 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.75 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 1.2 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.42 J 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.82 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 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 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-014 Description: MW-10 Matrix: Aqueous Date Sampled:04/05/2023 0915 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2050 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 1.1 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 103 70-130 116 70-130 92 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 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 D = Dilution > 1 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 257 Dissolved Gases Client:CDM Smith Laboratory ID:YD05007-014 Description: MW-10 Matrix: Aqueous Date Sampled:04/05/2023 0915 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/11/2023 1404 JM1 72481 2 RSK - 175 5 04/11/2023 1840 JM1 72481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane 74-84-0 RSK - 175 10 U 10 2.5 ug/L 1 Ethene 74-85-1 RSK - 175 10 U 10 2.5 ug/L 1 Methane 74-82-8 RSK - 175 8500 BD 50 13 ug/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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-014 Description: MW-10 Matrix: Aqueous Date Sampled:04/05/2023 0915 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1608 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00027 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-014 Description: MW-10 Matrix: Aqueous Date Sampled:04/05/2023 0915 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2019 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.22 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.35 J 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 3.2 J 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 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 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 30 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 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 D = Dilution > 1 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 257 Inorganic non-metals Client:CDM Smith Laboratory ID:YD05007-015 Description: MW-6 Matrix: Aqueous Date Sampled:04/05/2023 1110 Project Name: North Wake Unlined Landfill Date Received: 04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/06/2023 2020 JJM 72016 1 (BOD, 5 day) SM 521OB-2016 1 04/11/2023 1625 HDT 04/06/2023 2015 72001 1 (Chloride) 300.0 1 04/06/2023 1600 SJL 72050 1 (CO2 (calcula) SM 4500-CO2 D 1 04/06/2023 2020 JJM 1 (COD) SM 5220D-2011 1 04/10/2023 1336 GGC 72111 1 (Nitrate - N) 300.0 5 04/06/2023 1619 SJL 72051 1 (Sulfate) 300.0 1 04/06/2023 1600 SJL 72052 1 (Sulfide) SM 4500-S2 F-2011 1 04/12/2023 1226 CVR 72458 1 (TOC) SM 531 OC-2014 1 04/15/2023 0715 DMA 72721 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 360 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 2.0 U 2.0 0.18 mg/L 1 Chloride 300.0 72 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 470 27 27 mg/L 1 COD SM 5220D-2011 20 U 20 20 mg/L 1 Nitrate - N 300.0 5.8 D 0.10 0.025 mg/L 1 Sulfate 300.0 4.5 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 1.0 U 1.0 1.0 mg/L 1 TOC SM 531OC-2014 4.2 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-015 Description: MW-6 Matrix: Aqueous Date Sampled:04/05/2023 1110 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2115 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.91 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.53 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-015 Description: MW-6 Matrix: Aqueous Date Sampled:04/05/2023 1110 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2115 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 106 70-130 116 70-130 93 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 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 D = Dilution > 1 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 257 Dissolved Gases Client:CDM Smith Laboratory ID:YD05007-015 Description: MW-6 Matrix: Aqueous Date Sampled:04/05/2023 1110 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/11/2023 1420 JM1 72481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 10 U 10 2.5 ug/L 1 74-85-1 RSK - 175 10 U 10 2.5 ug/L 1 74-82-8 RSK - 175 9.2 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-015 Description: MW-6 Matrix: Aqueous Date Sampled:04/05/2023 1110 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1611 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00016 J 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-015 Description: MW-6 Matrix: Aqueous Date Sampled:04/05/2023 1110 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2030 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 2.8 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 4.0 J 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 0.25 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 3.3 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 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 2.6 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 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 D = Dilution > 1 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 257 Inorganic non-metals Client:CDM Smith Laboratory ID:YD05007-016 Description: MW-8 Matrix: Aqueous Date Sampled:04/05/2023 1242 Project Name: North Wake Unlined Landfill Date Received: 04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/06/2023 2036 JJM 72016 1 (BOD, 5 day) SM 521OB-2016 1 04/11/2023 1629 HDT 04/06/2023 2040 72001 1 (Chloride) 300.0 1 04/06/2023 1638 SJL 72050 1 (CO2 (calcula) SM 4500-CO2 D 1 04/06/2023 2036 JJM 1 (COD) SM 5220D-2011 1 04/10/2023 1336 GGC 72111 1 (Nitrate - N) 300.0 5 04/06/2023 1657 SJL 72051 1 (Sulfate) 300.0 1 04/06/2023 1638 SJL 72052 1 (Sulfide) SM 4500-S2 F-2011 1 04/12/2023 1226 CVR 72458 1 (TOC) SM 531 OC-2014 1 04/15/2023 0727 DMA 72721 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 2.0 U 2.0 0.18 mg/L 1 Chloride 300.0 82 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 400 27 27 mg/L 1 COD SM 5220D-2011 20 U 20 20 mg/L 1 Nitrate - N 300.0 0.10 U 0.10 0.025 mg/L 1 Sulfate 300.0 2.0 1.0 0.25 mg/L 1 Sulfide 18496-25-8 SM 4500-S2 F-2 1.0 U 1.0 1.0 mg/L 1 TOC SM 531OC-2014 5.3 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-016 Description: MW-8 Matrix: Aqueous Date Sampled:04/05/2023 1242 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2140 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.81 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.91 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 2.5 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 20 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-016 Description: MW-8 Matrix: Aqueous Date Sampled:04/05/2023 1242 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2140 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.49 J 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 108 70-130 121 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD05007-016 Description: MW-8 Matrix: Aqueous Date Sampled:04/05/2023 1242 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/12/2023 1525 AMR2 72429 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 11 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 95 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 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 D = Dilution > 1 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 257 Dissolved Gases Client:CDM Smith Laboratory ID:YD05007-016 Description: MW-8 Matrix: Aqueous Date Sampled:04/05/2023 1242 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/11/2023 1436 JM1 72481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 10 U 10 2.5 ug/L 1 74-85-1 RSK - 175 10 U 10 2.5 ug/L 1 74-82-8 RSK - 175 400 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-016 Description: MW-8 Matrix: Aqueous Date Sampled:04/05/2023 1242 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1613 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-016 Description: MW-8 Matrix: Aqueous Date Sampled:04/05/2023 1242 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2042 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 90 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020E 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 2.3 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 9.8 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 9.9 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 5.7 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 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 D = Dilution > 1 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 257 Inorganic non-metals Client:CDM Smith Laboratory ID:YD05007-017 Description: MW-11 Matrix: Aqueous Date Sampled:04/05/2023 1645 Project Name: North Wake Unlined Landfill Date Received: 04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 (Alkalinity @) SM 2320B-2011 1 04/06/2023 2043 JJM 72016 1 (BOD, 5 day) SM 521OB-2016 1 04/11/2023 1630 HDT 04/06/2023 2026 72001 1 (Chloride) 300.0 1 04/07/2023 1625 SJL 72112 1 (CO2 (calcula) SM 4500-CO2 D 1 04/06/2023 2043 JJM 1 (COD) SM 5220D-2011 1 04/10/2023 1337 GGC 72111 1 (Nitrate - N) 300.0 1 04/07/2023 1625 SJL 72114 2 (Sulfate) 300.0 1 04/10/2023 1548 SJL 72321 1 (Sulfide) SM 4500-S2 F-2011 1 04/12/2023 1226 CVR 72458 1 (TOC) SM 531 OC-2014 1 04/15/2023 0738 DMA 72721 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Alkalinity @ pH 4.5 su SM 2320B-2011 46 20 20 mg CaCO3/L 1 BOD, 5 day SM 521OB-2016 2.0 U 2.0 0.18 mg/L 1 Chloride 300.0 5.6 1.0 0.25 mg/L 1 CO2 (calculation) 124-38-9 SM 4500-CO2 D 120 27 27 mg/L 1 COD SM 5220D-2011 20 U 20 20 mg/L 1 Nitrate - N 300.0 0.85 0.020 0.0050 mg/L 1 Sulfate 300.0 1.0 U 1.0 0.25 mg/L 2 Sulfide 18496-25-8 SM 4500-S2 F-2 1.0 US 1.0 1.0 mg/L 1 TOC SM 531OC-2014 1.0 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-017 Description: MW-11 Matrix: Aqueous Date Sampled:04/05/2023 1645 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2204 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-017 Description: MW-11 Matrix: Aqueous Date Sampled:04/05/2023 1645 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2204 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 102 70-130 118 70-130 95 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD05007-017 Description: MW-11 Matrix: Aqueous Date Sampled:04/05/2023 1645 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/12/2023 1550 AMR2 72429 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 3.0 U 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 96 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 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 D = Dilution > 1 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 257 Dissolved Gases Client:CDM Smith Laboratory ID:YD05007-017 Description: MW-11 Matrix: Aqueous Date Sampled:04/05/2023 1645 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 RSK - 175 1 04/11/2023 1452 JM1 72481 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Ethane Ethene Methane 74-84-0 RSK - 175 10 U 10 2.5 ug/L 1 74-85-1 RSK - 175 10 U 10 2.5 ug/L 1 74-82-8 RSK - 175 4.0 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-017 Description: MW-11 Matrix: Aqueous Date Sampled:04/05/2023 1645 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1616 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-017 Description: MW-11 Matrix: Aqueous Date Sampled:04/05/2023 1645 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2053 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 50 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 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 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 5.5 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-018 Description: SW-2 Matrix: Aqueous Date Sampled:04/05/2023 1740 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2229 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-018 Description: SW-2 Matrix: Aqueous Date Sampled:04/05/2023 1740 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2229 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 104 70-130 121 70-130 93 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-018 Description: SW-2 Matrix: Aqueous Date Sampled:04/05/2023 1740 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1619 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-018 Description: SW-2 Matrix: Aqueous Date Sampled:04/05/2023 1740 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2105 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 38 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-019 Description: SW-3 Matrix: Aqueous Date Sampled:04/05/2023 1800 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2254 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-019 Description: SW-3 Matrix: Aqueous Date Sampled:04/05/2023 1800 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2254 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 103 70-130 116 70-130 92 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-019 Description: SW-3 Matrix: Aqueous Date Sampled:04/05/2023 1800 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1627 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-019 Description: SW-3 Matrix: Aqueous Date Sampled:04/05/2023 1800 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2116 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 38 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 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 1.5 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.40 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 4.0 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 4.6 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-020 Description: SW-7 Matrix: Aqueous Date Sampled:04/05/2023 1725 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2319 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-020 Description: SW-7 Matrix: Aqueous Date Sampled:04/05/2023 1725 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2319 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 108 70-130 124 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-020 Description: SW-7 Matrix: Aqueous Date Sampled:04/05/2023 1725 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 04/27/2023 1630 KAJ 04/12/2023 1239 72166 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-020 Description: SW-7 Matrix: Aqueous Date Sampled:04/05/2023 1725 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2127 BNW Prep Date Batch 04/10/2023 1837 72256 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 24 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 10 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-021 Description: SW-8 Matrix: Aqueous Date Sampled:04/05/2023 1730 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2343 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-021 Description: SW-8 Matrix: Aqueous Date Sampled:04/05/2023 1730 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/11/2023 2343 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 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 91 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-021 Description: SW-8 Matrix: Aqueous Date Sampled:04/05/2023 1730 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231429 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-021 Description: SW-8 Matrix: Aqueous Date Sampled:04/05/2023 1730 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2247 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 24 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 10 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-022 Description: MW-10D Matrix: Aqueous Date Sampled:04/05/2023 0955 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0009 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.81 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-022 Description: MW-10D Matrix: Aqueous Date Sampled:04/05/2023 0955 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0009 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 107 70-130 122 70-130 93 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 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 D = Dilution > 1 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 257 CVAA Client:CDM Smith Laboratory ID:YD05007-022 Description: MW-10D Matrix: Aqueous Date Sampled:04/05/2023 0955 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231431 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 118 of 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-022 Description: MW-10D Matrix: Aqueous Date Sampled:04/05/2023 0955 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2259 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 0.85 J 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 4.6 J 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.29 J 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 1.7 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.31 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 9.3 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 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 D = Dilution > 1 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 119 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-023 Description: MW-6d Matrix: Aqueous Date Sampled:04/05/2023 1040 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0033 JMM2 72379 2 5030B 8260D 1 04/21/2023 0241 CDA 73259 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.82 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.52 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 1.2 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 3.1 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 1.3 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.71 H 0.50 0.40 ug/L 2 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.49 J 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.62 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 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 D = Dilution > 1 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 120 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-023 Description: MW-6d Matrix: Aqueous Date Sampled:04/05/2023 1040 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0033 JMM2 72379 2 5030B 8260D 1 04/21/2023 0241 CDA 73259 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.52 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Run 2 Acceptance Surrogate Q % Recovery Limits Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 102 70-130 H 94 70-130 120 70-130 H 99 70-130 91 70-130 H 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 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 D = Dilution > 1 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 121 of 257 CVAA Client:CDM Smith Laboratory ID:YD05007-023 Description: MW-6d Matrix: Aqueous Date Sampled:04/05/2023 1040 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231434 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 122 of 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-023 Description: MW-6d Matrix: Aqueous Date Sampled:04/05/2023 1040 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2310 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 31 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 3.7 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 3.1 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 10 U 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 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 D = Dilution > 1 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 123 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-024 Description: DUP Matrix: Aqueous Date Sampled:04/05/2023 0800 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0058 JMM2 72379 2 5030B 8260D 1 04/21/2023 0304 CDA 73259 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.80 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.55 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 1.1 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 3.0 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1, 1 -Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis-1,2-Dichloroethene 156-59-2 8260D 1.4 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.74 H 0.50 0.40 ug/L 2 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.56 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 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 D = Dilution > 1 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 124 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-024 Description: DUP Matrix: Aqueous Date Sampled:04/05/2023 0800 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0058 JMM2 72379 2 5030B 8260D 1 04/21/2023 0304 CDA 73259 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Trichlorofluoromethane 75-69-4 8260D 0.46 J 0.50 0.40 ug/L 1 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Run 2 Acceptance Surrogate Q % Recovery Limits Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 103 70-130 H 99 70-130 114 70-130 H 103 70-130 91 70-130 H 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 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 D = Dilution > 1 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 125 of 257 CVAA Client:CDM Smith Laboratory ID:YD05007-024 Description: DUP Matrix: Aqueous Date Sampled:04/05/2023 0800 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231437 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 126 of 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-024 Description: DUP Matrix: Aqueous Date Sampled:04/05/2023 0800 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2322 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 31 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 3.7 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 3.1 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 10 U 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 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 D = Dilution > 1 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 127 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-025 Description: ME-8d Matrix: Aqueous Date Sampled:04/05/2023 1310 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0123 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 128 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-025 Description: ME-8d Matrix: Aqueous Date Sampled:04/05/2023 1310 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0123 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 107 70-130 120 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 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 D = Dilution > 1 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 129 of 257 CVAA Client:CDM Smith Laboratory ID:YD05007-025 Description: ME-8d Matrix: Aqueous Date Sampled:04/05/2023 1310 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231439 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 130 of 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-025 Description: ME-8d Matrix: Aqueous Date Sampled:04/05/2023 1310 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/13/2023 0053 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 16 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 3.1 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 4.0 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 10 U 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 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 D = Dilution > 1 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 131 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-026 Description: MW-1d Matrix: Aqueous Date Sampled:04/05/2023 1345 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0147 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 132 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-026 Description: MW-1d Matrix: Aqueous Date Sampled:04/05/2023 1345 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0147 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 109 70-130 124 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 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 D = Dilution > 1 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 133 of 257 CVAA Client:CDM Smith Laboratory ID:YD05007-026 Description: MW-1d Matrix: Aqueous Date Sampled:04/05/2023 1345 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231442 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 134 of 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-026 Description: MW-1d Matrix: Aqueous Date Sampled:04/05/2023 1345 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2333 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 42 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 1.9 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 3.9 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 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 D = Dilution > 1 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 135 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-027 Description: MW-29d Matrix: Aqueous Date Sampled:04/05/2023 1410 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0212 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 136 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-027 Description: MW-29d Matrix: Aqueous Date Sampled:04/05/2023 1410 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0212 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 105 70-130 119 70-130 93 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 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 D = Dilution > 1 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 137 of 257 Semivolatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-027 Description: MW-29d Matrix: Aqueous Date Sampled:04/05/2023 1410 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 3520C 8270E 1 04/11/2023 1701 CMF 04/10/2023 1000 72208 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run bis(2-Ethylhexyl)phthalate 117-81-7 8270E 3.9 J 4.0 1.5 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 2-Fluorobiphenyl 2-Fluorophenol Nitrobenzene-d5 Phenol-d5 Terphenyl-d14 2,4,6-Tribromophenol 75 37-129 43 24-127 79 38-127 50 28-128 94 10-148 77 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 D = Dilution > 1 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 138 of 257 CVAA Client:CDM Smith Laboratory ID:YD05007-027 Description: MW-29d Matrix: Aqueous Date Sampled:04/05/2023 1410 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231455 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 139 of 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-027 Description: MW-29d Matrix: Aqueous Date Sampled:04/05/2023 1410 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2344 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 7.0 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 7.0 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.89 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 2.5 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 3.7 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 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 D = Dilution > 1 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 140 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-028 Description: MW-28d Matrix: Aqueous Date Sampled:04/05/2023 1440 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0236 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 141 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-028 Description: MW-28d Matrix: Aqueous Date Sampled:04/05/2023 1440 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0236 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 103 70-130 121 70-130 92 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 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 D = Dilution > 1 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 142 of 257 CVAA Client:CDM Smith Laboratory ID:YD05007-028 Description: MW-28d Matrix: Aqueous Date Sampled:04/05/2023 1440 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231458 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 143 of 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-028 Description: MW-28d Matrix: Aqueous Date Sampled:04/05/2023 1440 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/12/2023 2356 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 1.1 J 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 1.9 J 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 6.8 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 2.8 J 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.68 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 2.1 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 11 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 11 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 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 D = Dilution > 1 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 144 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-029 Description: MW-28 Matrix: Aqueous Date Sampled:04/05/2023 1515 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0301 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 145 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-029 Description: MW-28 Matrix: Aqueous Date Sampled:04/05/2023 1515 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0301 JMM2 72379 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 107 70-130 125 70-130 95 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 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 D = Dilution > 1 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 146 of 257 CVAA Client:CDM Smith Laboratory ID:YD05007-029 Description: MW-28 Matrix: Aqueous Date Sampled:04/05/2023 1515 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231501 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 147 of 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-029 Description: MW-28 Matrix: Aqueous Date Sampled:04/05/2023 1515 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/13/2023 0007 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.23 J 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.9 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 0.69 J 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 1.8 J 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 9.4 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 15 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 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 D = Dilution > 1 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 148 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-030 Description: MW-33 Matrix: Aqueous Date Sampled:04/05/2023 1705 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/20231501 JWO 72496 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 10 UL 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 UL 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 UL 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 UL 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 149 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-030 Description: MW-33 Matrix: Aqueous Date Sampled:04/05/2023 1705 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/20231501 JWO 72496 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 U 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 107 70-130 118 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 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 D = Dilution > 1 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 150 of 257 CVAA Client:CDM Smith Laboratory ID:YD05007-030 Description: MW-33 Matrix: Aqueous Date Sampled:04/05/2023 1705 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231503 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 151 of 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-030 Description: MW-33 Matrix: Aqueous Date Sampled:04/05/2023 1705 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/13/2023 0019 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 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 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 3.8 J 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 4.8 J 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 4.7 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 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 D = Dilution > 1 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 152 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-031 Description: EQ Blank Matrix: Aqueous Date Sampled:04/05/2023 1455 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0133 CDA 72381 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Acetone 67-64-1 8260D 4.8 J 10 4.0 ug/L 1 Acrylonitrile 107-13-1 8260D 5.0 U 5.0 0.80 ug/L 1 Benzene 71-43-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromochloromethane 74-97-5 8260D 0.50 U 0.50 0.40 ug/L 1 Bromodichloromethane 75-27-4 8260D 0.50 U 0.50 0.40 ug/L 1 Bromoform 75-25-2 8260D 0.50 U 0.50 0.40 ug/L 1 Bromomethane (Methyl bromide) 74-83-9 8260D 0.50 U 0.50 0.40 ug/L 1 2-Butanone (MEK) 78-93-3 8260D 10 U 10 2.0 ug/L 1 Carbon disulfide 75-15-0 8260D 0.50 U 0.50 0.40 ug/L 1 Carbon tetrachloride 56-23-5 8260D 0.50 U 0.50 0.40 ug/L 1 Chlorobenzene 108-90-7 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroethane 75-00-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloroform 67-66-3 8260D 0.50 U 0.50 0.40 ug/L 1 Chloromethane (Methyl chloride) 74-87-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromochloromethane 124-48-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dibromoethane (EDB) 106-93-4 8260D 0.50 U 0.50 0.40 ug/L 1 Dibromomethane (Methylene bromide) 74-95-3 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,4-Dichloro-2-butene 110-57-6 8260D 2.0 U 2.0 0.40 ug/L 1 1,2-Dichlorobenzene 95-50-1 8260D 0.50 U 0.50 0.40 ug/L 1 1,4-Dichlorobenzene 106-46-7 8260D 0.50 U 0.50 0.40 ug/L 1 Dichlorodifluoromethane 75-71-8 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethane 75-34-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloroethane 107-06-2 8260D 0.50 U 0.50 0.40 ug/L 1 1,1-Dichloroethene 75-35-4 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,2-Dichloroethene 156-59-2 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,2-Dichloroethene 156-60-5 8260D 0.50 U 0.50 0.40 ug/L 1 1,2-Dichloropropane 78-87-5 8260D 0.50 U 0.50 0.40 ug/L 1 cis- 1,3-Dichloropropene 10061-01-5 8260D 0.50 U 0.50 0.40 ug/L 1 trans- 1,3-Dichloropropene 10061-02-6 8260D 0.50 U 0.50 0.40 ug/L 1 Ethylbenzene 100-41-4 8260D 0.50 U 0.50 0.40 ug/L 1 2-Hexanone 591-78-6 8260D 10 U 10 2.0 ug/L 1 Methyl iodide (lodomethane) 74-88-4 8260D 5.0 U 5.0 0.40 ug/L 1 4-Methyl-2-pentanone 108-10-1 8260D 10 U 10 2.0 ug/L 1 Methylene chloride 75-09-2 8260D 0.50 U 0.50 0.40 ug/L 1 Styrene 100-42-5 8260D 0.50 U 0.50 0.41 ug/L 1 1,1,1,2-Tetrachloroethane 630-20-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2,2-Tetrachloroethane 79-34-5 8260D 0.50 U 0.50 0.40 ug/L 1 Tetrachloroethene 127-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Toluene 108-88-3 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,1-Trichloroethane 71-55-6 8260D 0.50 U 0.50 0.40 ug/L 1 1,1,2-Trichloroethane 79-00-5 8260D 0.50 U 0.50 0.40 ug/L 1 Trichloroethene 79-01-6 8260D 0.50 U 0.50 0.40 ug/L 1 Trichlorofluoromethane 75-69-4 8260D 0.50 U 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 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 D = Dilution > 1 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 153 of 257 Volatile Organic Compounds by GC/MS Client:CDM Smith Laboratory ID:YD05007-031 Description: EQ Blank Matrix: Aqueous Date Sampled:04/05/2023 1455 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 04/12/2023 0133 CDA 72381 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,2,3-Trichloropropane 96-18-4 8260D 0.50 U 0.50 0.40 ug/L 1 Vinyl acetate 108-05-4 8260D 5.0 U 5.0 1.2 ug/L 1 Vinyl chloride 75-01-4 8260D 0.50 UL 0.50 0.40 ug/L 1 Xylenes (total) 1330-20-7 8260D 1.0 U 1.0 0.40 ug/L 1 Run 1 Acceptance Surrogate Q % Recovery Limits Bromofluorobenzene 1,2-Dichloroethane-d4 Toluene-d8 91 70-130 105 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 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 D = Dilution > 1 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 154 of 257 Volatile Organic Compounds by GC/MS (SIM) Client:CDM Smith Laboratory ID:YD05007-031 Description: EQ Blank Matrix: Aqueous Date Sampled:04/05/2023 1455 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM) 1 04/12/2023 1150 AMR2 72429 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run 1,4-Dioxane 123-91-1 8260D (SIM) 3.0 U 3.0 1.0 ug/L 1 Run Acceptance Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 95 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 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 D = Dilution > 1 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 155 of 257 CVAA Client:CDM Smith Laboratory ID:YD05007-031 Description: EQ Blank Matrix: Aqueous Date Sampled:04/05/2023 1455 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 7470A 1 04/27/20231506 KAJ 04/24/20231021 73236 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Mercury 7439-97-6 7470A 0.00020 U 0.00020 0.000091 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 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 D = Dilution > 1 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 156 of 257 ICP-MS Metals Client:CDM Smith Laboratory ID:YD05007-031 Description: EQ Blank Matrix: Aqueous Date Sampled:04/05/2023 1455 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method 1 3005A Analytical Method Dilution Analysis Date Analyst 6020B 1 04/13/2023 0150 BNW Prep Date Batch 04/10/2023 1837 72257 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Antimony 7440-36-0 6020B 2.0 U 2.0 0.50 ug/L 1 Arsenic 7440-38-2 6020B 2.0 U 2.0 1.3 ug/L 1 Barium 7440-39-3 6020B 5.0 U 5.0 1.3 ug/L 1 Beryllium 7440-41-7 6020B 0.40 U 0.40 0.15 ug/L 1 Cadmium 7440-43-9 6020B 0.50 U 0.50 0.13 ug/L 1 Chromium 7440-47-3 6020B 5.0 U 5.0 1.3 ug/L 1 Cobalt 7440-48-4 6020B 5.0 U 5.0 1.3 ug/L 1 Copper 7440-50-8 6020B 5.0 U 5.0 1.3 ug/L 1 Lead 7439-92-1 6020B 1.0 U 1.0 0.25 ug/L 1 Nickel 7440-02-0 6020B 5.0 U 5.0 1.3 ug/L 1 Selenium 7782-49-2 6020B 5.0 U 5.0 1.3 ug/L 1 Silver 7440-22-4 6020B 1.0 U 1.0 0.25 ug/L 1 Thallium 7440-28-0 6020B 0.50 U 0.50 0.15 ug/L 1 Vanadium 7440-62-2 6020B 5.0 U 5.0 2.5 ug/L 1 Zinc 7440-66-6 6020B 10 U 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 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 D = Dilution > 1 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 157 of 257 QC Summary Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 158 of 257 Inorganic non-metals - BOD Blank and GGA Matrix: Aqueous Batch: 71899 SCF: 1.1 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 YQ71899-041 (Blank) -0.01 0.2 04/05/2023 1804 04/10/2023 1530 YQ71899-141 (Blank) -0.02 0.2 04/05/2023 1805 04/10/2023 1530 YQ71899-241 (Blank) 0.08 0.02 0.2 04/05/2023 1804 04/10/2023 1530 YQ71899-035 (GGA) 183.8 167.5-228.5 04/05/2023 1811 04/10/2023 1535 YQ71899-135 (GGA) 191.8 167.5-228.5 04/05/2023 1811 04/10/2023 1535 YQ71899-235 (GGA) 193.8 189.8 167.5-228.5 04/05/2023 1811 04/10/2023 1535 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ71959-001 Matrix: Aqueous Batch: 71959 Analytical Method: 300.0 Parameter Result Q Dil LOQ DL Units Analysis Date Chloride 1.0 U 1 1.0 0.25 mg/L 04/05/20231440 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ71959-002 Matrix: Aqueous Batch: 71959 Analytical Method: 300.0 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 20 21 1 106 90-110 04/05/20231517 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ71960-001 Matrix: Aqueous Batch: 71960 Analytical Method: 300.0 Parameter Result Q Dil LOQ DL Units Analysis Date Nitrate - N 0.020 U 1 0.020 0.0050 mg/L 04/05/2023 1440 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ71960-002 Matrix: Aqueous Batch: 71960 Analytical Method: 300.0 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N 0.80 0.84 1 104 90-110 04/05/2023 1517 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ71961-001 Matrix: Aqueous Batch:71961 Analytical Method: 300.0 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfate 1.0 U 1 1.0 0.25 mg/L 04/05/20231440 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ71961-002 Matrix: Aqueous Batch:71961 Analytical Method: 300.0 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 21 1 103 90-110 04/05/20231517 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - BOD Blank and GGA Matrix: Aqueous Batch: 72001 SCF: 1.1 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 YQ72001-041 (Blank) 0.11 0.2 04/06/2023 1959 04/11/2023 1613 YQ72001-141 (Blank) 0.13 0.2 04/06/2023 1959 04/11/2023 1613 YQ72001-241 (Blank) 0.16 0.13 0.2 04/06/2023 1959 04/11/2023 1613 YQ72001-035 (GGA) 184.1 167.5-228.5 04/06/2023 2006 04/11/2023 1618 YQ72001-135 (GGA) 162.1 1 167.5-228.5 04/06/2023 2006 04/11/2023 1619 YQ72001-235 (GGA) 195.1 180.4 167.5-228.5 04/06/2023 2006 04/11/2023 1617 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72016-002 Matrix: Aqueous Batch: 72016 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 100 100 1 104 90-110 04/06/2023 1930 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72050-001 Matrix: Aqueous Batch: 72050 Analytical Method: 300.0 Parameter Result Q Dil LOQ DL Units Analysis Date Chloride 1.0 U 1 1.0 0.25 mg/L 04/06/20231407 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72050-002 Matrix: Aqueous Batch: 72050 Analytical Method: 300.0 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 20 20 1 101 90-110 04/06/20231445 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72051-001 Matrix: Aqueous Batch: 72051 Analytical Method: 300.0 Parameter Result Q Dil LOQ DL Units Analysis Date Nitrate - N 0.020 U 1 0.020 0.0050 mg/L 04/06/2023 1407 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72051-002 Matrix: Aqueous Batch: 72051 Analytical Method: 300.0 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N 0.80 0.79 1 99 90-110 04/06/2023 1445 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72052-001 Matrix: Aqueous Batch: 72052 Analytical Method: 300.0 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfate 1.0 U 1 1.0 0.25 mg/L 04/06/20231407 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72052-002 Matrix: Aqueous Batch: 72052 Analytical Method: 300.0 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 20 1 100 90-110 04/06/20231445 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72111-001 Matrix: Aqueous Batch:72111 Analytical Method: SM 5220D-2011 Parameter Result Q Dil LOQ DL Units Analysis Date COD 20 U 1 20 20 mg/L 04/10/20231325 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72111-002 Matrix: Aqueous Batch:72111 Analytical Method: SM 5220D-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date COD 40 40 1 101 95-105 04/10/20231328 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 175 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MS Sample ID: YD05007-003MS Matrix: Aqueous Batch:72111 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 0.0 40 40 1 101 90-110 04/10/20231333 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MSD Sample ID: YD05007-003MD Matrix: Aqueous Batch:72111 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 0.0 40 42 1 106 4.7 90-110 20 04/10/20231334 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 177 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MS Sample ID: YD05007-014MS Matrix: Aqueous Batch:72111 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 0.0 40 41 1 103 90-110 04/10/20231339 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MSD Sample ID: YD05007-014MD Matrix: Aqueous Batch:72111 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 0.0 40 41 1 103 0.00 90-110 20 04/10/20231339 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 179 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72112-001 Matrix: Aqueous Batch: 72112 Analytical Method: 300.0 Parameter Result Q Dil LOQ DL Units Analysis Date Chloride 1.0 U 1 1.0 0.25 mg/L 04/07/2023 0924 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72112-002 Matrix: Aqueous Batch: 72112 Analytical Method: 300.0 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Chloride 20 20 1 101 90-110 04/07/20231002 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 181 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72114-001 Matrix: Aqueous Batch: 72114 Analytical Method: 300.0 Parameter Result Q Dil LOQ DL Units Analysis Date Nitrate - N 0.020 U 1 0.020 0.0050 mg/L 04/07/2023 0924 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72114-002 Matrix: Aqueous Batch: 72114 Analytical Method: 300.0 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Nitrate - N 0.80 0.82 1 102 90-110 04/07/2023 1002 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 183 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72284-001 Matrix: Aqueous Batch:72284 Analytical Method: SM 2540C-2015 Parameter Result Q Dil LOQ DL Units Analysis Date TDS 25 U 1 25 25 mg/L 04/11/2023 0235 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72284-002 Matrix: Aqueous Batch:72284 Analytical Method: SM 2540C-2015 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date TDS 50 49 1 98 90-110 04/11/2023 0235 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 185 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - Duplicate Sample ID: YD05007-003DU Matrix: Aqueous Batch:72284 Analytical Method: SM 2540C-2015 Sample Amount Result %RPD Parameter (mg/L) (mg/L) Q Dil % RPD Limit Analysis Date TDS 100 100 1 0.00 20 04/11/2023 0235 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72321-001 Matrix: Aqueous Batch:72321 Analytical Method: 300.0 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfate 1.0 U 1 1.0 0.25 mg/L 04/10/20231452 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 187 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72321-002 Matrix: Aqueous Batch:72321 Analytical Method: 300.0 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 20 20 1 98 90-110 04/10/20231530 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MS Sample ID: YD05007-017MS Matrix: Aqueous Batch:72321 Analytical Method: 300.0 Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfate 0.0 10 9.4 1 94 90-110 04/10/20231607 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 189 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MSD Sample ID: YD05007-017MD Matrix: Aqueous Batch:72321 Analytical Method: 300.0 Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Sulfate 0.0 10 9.4 1 94 0.33 90-110 20 04/10/20231626 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72342-001 Matrix: Aqueous Batch:72342 Analytical Method: SM 4500-S2 F-2011 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfide 1.0 U 1 1.0 1.0 mg/L 04/11/20231201 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 191 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72342-002 Matrix: Aqueous Batch:72342 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 04/11/20231201 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MS Sample ID: YD05007-003MS Matrix: Aqueous Batch:72342 Analytical Method: SM 4500-S2 F-2011 Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfide 0.0 10 5.8 N 1 58 70-130 04/11/20231201 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 193 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MSD Sample ID: YD05007-003MD Matrix: Aqueous Batch:72342 Analytical Method: SM 4500-S2 F-2011 Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Sulfide 0.0 10 6.2 N 1 62 7.5 70-130 20 04/11/20231201 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72458-001 Matrix: Aqueous Batch: 72458 Analytical Method: SM 4500-S2 F-2011 Parameter Result Q Dil LOQ DL Units Analysis Date Sulfide 1.0 U 1 1.0 1.0 mg/L 04/12/20231226 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 195 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72458-002 Matrix: Aqueous Batch: 72458 Analytical Method: SM 4500-S2 F-2011 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfide 10 9.2 1 92 80-120 04/12/20231226 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MS Sample ID: YD05007-017MS Matrix: Aqueous Batch: 72458 Analytical Method: SM 4500-S2 F-2011 Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Sulfide 0.0 10 6.7 N 1 67 70-130 04/12/20231226 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MSD Sample ID: YD05007-017MD Matrix: Aqueous Batch: 72458 Analytical Method: SM 4500-S2 F-2011 Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Sulfide 0.0 10 6.4 N 1 64 3.8 70-130 20 04/12/20231226 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MB Sample ID: YQ72721-001 Matrix: Aqueous Batch:72721 Analytical Method: SM 531 OC-2014 Parameter Result Q Dil LOQ DL Units Analysis Date TOC 1.0 U 1 1.0 1.0 mg/L 04/15/2023 0212 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - LCS Sample ID: YQ72721-002 Matrix: Aqueous Batch:72721 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 92 90-110 04/15/2023 0223 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 200 of 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MS Sample ID: YD05007-003MS Matrix: Aqueous Batch:72721 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 0.0 50 50 1 100 70-130 04/15/2023 0556 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Inorganic non-metals - MSD Sample ID: YD05007-003MD Matrix: Aqueous Batch:72721 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 0.0 50 49 1 98 1.1 70-130 20 04/15/2023 0608 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 202 of 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ72287-001 Matrix: Aqueous Batch: 72287 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone 10 U 1 10 4.0 ug/L 04/10/2023 2254 Acrylonitrile 5.0 U 1 5.0 0.80 ug/L 04/10/2023 2254 Benzene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Bromochloromethane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Bromodichloromethane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Bromoform 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Bromomethane (Methyl bromide) 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 2-Butanone (MEK) 10 U 1 10 2.0 ug/L 04/10/2023 2254 Carbon disulfide 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Carbon tetrachloride 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Chlorobenzene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Chloroethane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Chloroform 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Chloromethane (Methyl chloride) 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 1,2-Dibromo-3-chloropropane (DBCP) 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Dibromochloromethane 0.50 u 1 0.50 0.40 ug/L 04/10/2023 2254 1,2-Dibromoethane (EDB) 0.50 u 1 0.50 0.40 ug/L 04/10/2023 2254 Dibromomethane (Methylene bromide) 0.50 u 1 0.50 0.40 ug/L 04/10/2023 2254 trans- 1,4-Dichloro-2-butene 2.0 u 1 2.0 0.40 ug/L 04/10/2023 2254 1,2-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 04/10/2023 2254 1,4-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 04/10/2023 2254 Dichlorodifluoromethane 0.50 u 1 0.50 0.40 ug/L 04/10/2023 2254 1,1-Dichloroethane 0.50 u 1 0.50 0.40 ug/L 04/10/2023 2254 1,2-Dichloroethane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 1,1-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 cis- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 trans- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 1,2-Dichloropropane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 cis- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 trans- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Ethylbenzene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 2-Hexanone 10 U 1 10 2.0 ug/L 04/10/2023 2254 Methyl iodide (lodomethane) 5.0 U 1 5.0 0.40 ug/L 04/10/2023 2254 4-Methyl-2-pentanone 10 U 1 10 2.0 ug/L 04/10/2023 2254 Methylene chloride 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Styrene 0.50 U 1 0.50 0.41 ug/L 04/10/2023 2254 1,1,1,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 1,1,2,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Tetrachloroethene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Toluene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 1,1,1-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 1,1,2-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Trichloroethene 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Trichlorofluoromethane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ72287-001 Matrix: Aqueous Batch:72287 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date 1,2,3-Trichloropropane 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Vinyl acetate 5.0 U 1 5.0 1.2 ug/L 04/10/2023 2254 Vinyl chloride 0.50 U 1 0.50 0.40 ug/L 04/10/2023 2254 Xylenes (total) 1.0 U 1 1.0 0.40 ug/L 04/10/2023 2254 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 94 70-130 1,2-Dichloroethane-d4 100 70-130 Toluene-d8 101 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 204 of 257 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ72287-002 Matrix: Aqueous Batch: 72287 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 94 1 94 60-140 04/10/2023 2108 Acrylonitrile 100 110 1 113 70-130 04/10/2023 2108 Benzene 50 56 1 112 70-130 04/10/2023 2108 Bromochloromethane 50 51 1 103 70-130 04/10/2023 2108 Bromodichloromethane 50 50 1 101 70-130 04/10/2023 2108 Bromoform 50 47 1 95 70-130 04/10/2023 2108 Bromomethane (Methyl bromide) 50 43 1 87 70-130 04/10/2023 2108 2-Butanone (MEK) 100 98 1 98 70-130 04/10/2023 2108 Carbon disulfide 50 53 1 106 70-130 04/10/2023 2108 Carbon tetrachloride 50 53 1 107 70-130 04/10/2023 2108 Chlorobenzene 50 53 1 105 70-130 04/10/2023 2108 Chloroethane 50 56 1 112 70-130 04/10/2023 2108 Chloroform 50 50 1 101 70-130 04/10/2023 2108 Chloromethane (Methyl chloride) 50 58 1 115 60-140 04/10/2023 2108 1,2-Dibromo-3-chloropropane (DBCP) 50 51 1 102 70-130 04/10/2023 2108 Dibromochloromethane 50 50 1 101 70-130 04/10/2023 2108 1,2-Dibromoethane (EDB) 50 52 1 104 70-130 04/10/2023 2108 Dibromomethane (Methylene bromide) 50 52 1 104 70-130 04/10/2023 2108 trans- 1,4-Dichloro-2-butene 50 48 1 97 70-130 04/10/2023 2108 1,2-Dichlorobenzene 50 52 1 103 70-130 04/10/2023 2108 1,4-Dichlorobenzene 50 51 1 103 70-130 04/10/2023 2108 Dichlorodifluoromethane 50 54 1 108 60-140 04/10/2023 2108 1,1-Dichloroethane 50 55 1 109 70-130 04/10/2023 2108 1,2-Dichloroethane 50 53 1 106 70-130 04/10/2023 2108 1,1-Dichloroethene 50 51 1 102 70-130 04/10/2023 2108 cis- 1,2-Dichloroethene 50 53 1 105 70-130 04/10/2023 2108 trans- 1,2-Dichloroethene 50 52 1 103 70-130 04/10/2023 2108 1,2-Dichloropropane 50 51 1 102 70-130 04/10/2023 2108 cis- 1,3-Dichloropropene 50 54 1 107 70-130 04/10/2023 2108 trans- 1,3-Dichloropropene 50 54 1 107 70-130 04/10/2023 2108 Ethylbenzene 50 53 1 106 70-130 04/10/2023 2108 2-Hexanone 100 100 1 102 70-130 04/10/2023 2108 Methyl iodide (lodomethane) 50 53 1 106 70-130 04/10/2023 2108 4-Methyl-2-pentanone 100 110 1 106 70-130 04/10/2023 2108 Methylene chloride 50 55 1 110 70-130 04/10/2023 2108 Styrene 50 54 1 107 70-130 04/10/2023 2108 1,1,1,2-Tetrachloroethane 50 52 1 104 70-130 04/10/2023 2108 1,1,2,2-Tetrachloroethane 50 51 1 103 70-130 04/10/2023 2108 Tetrachloroethene 50 51 1 101 70-130 04/10/2023 2108 Toluene 50 53 1 107 70-130 04/10/2023 2108 1,1,1-Trichloroethane 50 53 1 106 70-130 04/10/2023 2108 1,1,2-Trichloroethane 50 50 1 101 70-130 04/10/2023 2108 Trichloroethene 50 52 1 104 70-130 04/10/2023 2108 Trichlorofluoromethane 50 53 1 106 70-130 04/10/2023 2108 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ72287-002 Matrix: Aqueous Batch:72287 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 58 1 116 70-130 04/10/2023 2108 Vinyl acetate 50 54 1 108 60-140 04/10/2023 2108 Vinyl chloride 50 61 1 122 70-130 04/10/2023 2108 Xylenes (total) 100 110 1 106 70-130 04/10/2023 2108 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 96 70-130 1,2-Dichloroethane-d4 99 70-130 Toluene-d8 103 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 206 of 257 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ72347-001 Matrix: Aqueous Batch: 72347 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone 10 U 1 10 4.0 ug/L 04/11/2023 1055 Acrylonitrile 5.0 U 1 5.0 0.80 ug/L 04/11/2023 1055 Benzene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Bromochloromethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Bromodichloromethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Bromoform 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Bromomethane (Methyl bromide) 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 2-Butanone (MEK) 10 U 1 10 2.0 ug/L 04/11/2023 1055 Carbon disulfide 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Carbon tetrachloride 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Chlorobenzene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Chloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Chloroform 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Chloromethane (Methyl chloride) 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 1,2-Dibromo-3-chloropropane (DBCP) 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Dibromochloromethane 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1055 1,2-Dibromoethane (EDB) 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1055 Dibromomethane (Methylene bromide) 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1055 trans- 1,4-Dichloro-2-butene 2.0 u 1 2.0 0.40 ug/L 04/11/2023 1055 1,2-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1055 1,4-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1055 Dichlorodifluoromethane 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1055 1,1-Dichloroethane 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1055 1,2-Dichloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 1,1-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 cis- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 trans- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 1,2-Dichloropropane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 cis- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 trans- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Ethylbenzene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 2-Hexanone 10 U 1 10 2.0 ug/L 04/11/2023 1055 Methyl iodide (lodomethane) 5.0 U 1 5.0 0.40 ug/L 04/11/2023 1055 4-Methyl-2-pentanone 10 U 1 10 2.0 ug/L 04/11/2023 1055 Methylene chloride 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Styrene 0.50 U 1 0.50 0.41 ug/L 04/11/2023 1055 1,1,1,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 1,1,2,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Tetrachloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Toluene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 1,1,1-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 1,1,2-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Trichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Trichlorofluoromethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ72347-001 Matrix: Aqueous Batch:72347 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date 1,2,3-Trichloropropane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Vinyl acetate 5.0 U 1 5.0 1.2 ug/L 04/11/2023 1055 Vinyl chloride 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1055 Xylenes (total) 1.0 U 1 1.0 0.40 ug/L 04/11/2023 1055 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 95 70-130 1,2-Dichloroethane-d4 103 70-130 Toluene-d8 102 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 208 of 257 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ72347-002 Matrix: Aqueous Batch: 72347 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 88 1 88 60-140 04/11/2023 0919 Acrylonitrile 100 110 1 108 70-130 04/11/2023 0919 Benzene 50 59 1 118 70-130 04/11/2023 0919 Bromochloromethane 50 54 1 107 70-130 04/11/2023 0919 Bromodichloromethane 50 53 1 107 70-130 04/11/2023 0919 Bromoform 50 47 1 94 70-130 04/11/2023 0919 Bromomethane (Methyl bromide) 50 47 1 95 70-130 04/11/2023 0919 2-Butanone (MEK) 100 100 1 104 70-130 04/11/2023 0919 Carbon disulfide 50 60 1 120 70-130 04/11/2023 0919 Carbon tetrachloride 50 58 1 117 70-130 04/11/2023 0919 Chlorobenzene 50 53 1 106 70-130 04/11/2023 0919 Chloroethane 50 63 1 126 70-130 04/11/2023 0919 Chloroform 50 54 1 109 70-130 04/11/2023 0919 Chloromethane (Methyl chloride) 50 64 1 127 60-140 04/11/2023 0919 1,2-Dibromo-3-chloropropane (DBCP) 50 51 1 103 70-130 04/11/2023 0919 Dibromochloromethane 50 51 1 101 70-130 04/11/2023 0919 1,2-Dibromoethane (EDB) 50 51 1 102 70-130 04/11/2023 0919 Dibromomethane (Methylene bromide) 50 54 1 108 70-130 04/11/2023 0919 trans- 1,4-Dichloro-2-butene 50 47 1 95 70-130 04/11/2023 0919 1,2-Dichlorobenzene 50 53 1 105 70-130 04/11/2023 0919 1,4-Dichlorobenzene 50 52 1 104 70-130 04/11/2023 0919 Dichlorodifluoromethane 50 61 1 121 60-140 04/11/2023 0919 1,1-Dichloroethane 50 60 1 119 70-130 04/11/2023 0919 1,2-Dichloroethane 50 56 1 113 70-130 04/11/2023 0919 1,1-Dichloroethene 50 56 1 112 70-130 04/11/2023 0919 cis- 1,2-Dichloroethene 50 55 1 110 70-130 04/11/2023 0919 trans- 1,2-Dichloroethene 50 56 1 112 70-130 04/11/2023 0919 1,2-Dichloropropane 50 53 1 107 70-130 04/11/2023 0919 cis- 1,3-Dichloropropene 50 57 1 113 70-130 04/11/2023 0919 trans- 1,3-Dichloropropene 50 55 1 111 70-130 04/11/2023 0919 Ethylbenzene 50 53 1 107 70-130 04/11/2023 0919 2-Hexanone 100 100 1 102 70-130 04/11/2023 0919 Methyl iodide (lodomethane) 50 55 1 111 70-130 04/11/2023 0919 4-Methyl-2-pentanone 100 100 1 105 70-130 04/11/2023 0919 Methylene chloride 50 59 1 117 70-130 04/11/2023 0919 Styrene 50 54 1 109 70-130 04/11/2023 0919 1,1,1,2-Tetrachloroethane 50 53 1 106 70-130 04/11/2023 0919 1,1,2,2-Tetrachloroethane 50 54 1 108 70-130 04/11/2023 0919 Tetrachloroethene 50 51 1 101 70-130 04/11/2023 0919 Toluene 50 55 1 109 70-130 04/11/2023 0919 1,1,1-Trichloroethane 50 59 1 117 70-130 04/11/2023 0919 1,1,2-Trichloroethane 50 51 1 102 70-130 04/11/2023 0919 Trichloroethene 50 54 1 107 70-130 04/11/2023 0919 Trichlorofluoromethane 50 58 1 117 70-130 04/11/2023 0919 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ72347-002 Matrix: Aqueous Batch:72347 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 1 104 70-130 04/11/2023 0919 Vinyl acetate 50 62 1 125 60-140 04/11/2023 0919 Vinyl chloride 50 68 N 1 136 70-130 04/11/2023 0919 Xylenes (total) 100 110 1 107 70-130 04/11/2023 0919 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 98 70-130 1,2-Dichloroethane-d4 104 70-130 Toluene-d8 104 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 210 of 257 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ72379-001 Matrix: Aqueous Batch: 72379 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone 10 U 1 10 4.0 ug/L 04/11/2023 1910 Acrylonitrile 5.0 U 1 5.0 0.80 ug/L 04/11/2023 1910 Benzene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Bromochloromethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Bromodichloromethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Bromoform 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Bromomethane (Methyl bromide) 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 2-Butanone (MEK) 10 U 1 10 2.0 ug/L 04/11/2023 1910 Carbon disulfide 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Carbon tetrachloride 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Chlorobenzene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Chloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Chloroform 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Chloromethane (Methyl chloride) 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 1,2-Dibromo-3-chloropropane (DBCP) 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Dibromochloromethane 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1910 1,2-Dibromoethane (EDB) 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1910 Dibromomethane (Methylene bromide) 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1910 trans- 1,4-Dichloro-2-butene 2.0 u 1 2.0 0.40 ug/L 04/11/2023 1910 1,2-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1910 1,4-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1910 Dichlorodifluoromethane 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1910 1,1-Dichloroethane 0.50 u 1 0.50 0.40 ug/L 04/11/2023 1910 1,2-Dichloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 1,1-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 cis- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 trans- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 1,2-Dichloropropane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 cis- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 trans- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Ethylbenzene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 2-Hexanone 10 U 1 10 2.0 ug/L 04/11/2023 1910 Methyl iodide (lodomethane) 5.0 U 1 5.0 0.40 ug/L 04/11/2023 1910 4-Methyl-2-pentanone 10 U 1 10 2.0 ug/L 04/11/2023 1910 Methylene chloride 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Styrene 0.50 U 1 0.50 0.41 ug/L 04/11/2023 1910 1,1,1,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 1,1,2,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Tetrachloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Toluene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 1,1,1-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 1,1,2-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Trichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Trichlorofluoromethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ72379-001 Matrix: Aqueous Batch:72379 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date 1,2,3-Trichloropropane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Vinyl acetate 5.0 U 1 5.0 1.2 ug/L 04/11/2023 1910 Vinyl chloride 0.50 U 1 0.50 0.40 ug/L 04/11/2023 1910 Xylenes (total) 1.0 U 1 1.0 0.40 ug/L 04/11/2023 1910 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 106 70-130 1,2-Dichloroethane-d4 118 70-130 Toluene-d8 94 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 212 of 257 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ72379-002 Matrix: Aqueous Batch: 72379 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 200 N 1 205 60-140 04/11/2023 1821 Acrylonitrile 100 170 N 1 165 70-130 04/11/2023 1821 Benzene 50 51 1 102 70-130 04/11/2023 1821 Bromochloromethane 50 51 1 103 70-130 04/11/2023 1821 Bromodichloromethane 50 52 1 104 70-130 04/11/2023 1821 Bromoform 50 44 1 87 70-130 04/11/2023 1821 Bromomethane (Methyl bromide) 50 46 1 93 70-130 04/11/2023 1821 2-Butanone (MEK) 100 140 N 1 139 70-130 04/11/2023 1821 Carbon disulfide 50 55 1 110 70-130 04/11/2023 1821 Carbon tetrachloride 50 50 1 100 70-130 04/11/2023 1821 Chlorobenzene 50 49 1 98 70-130 04/11/2023 1821 Chloroethane 50 59 1 117 70-130 04/11/2023 1821 Chloroform 50 55 1 111 70-130 04/11/2023 1821 Chloromethane (Methyl chloride) 50 60 1 120 60-140 04/11/2023 1821 1,2-Dibromo-3-chloropropane (DBCP) 50 57 1 114 70-130 04/11/2023 1821 Dibromochloromethane 50 51 1 102 70-130 04/11/2023 1821 1,2-Dibromoethane (EDB) 50 52 1 104 70-130 04/11/2023 1821 Dibromomethane (Methylene bromide) 50 56 1 113 70-130 04/11/2023 1821 trans- 1,4-Dichloro-2-butene 50 40 1 81 70-130 04/11/2023 1821 1,2-Dichlorobenzene 50 49 1 99 70-130 04/11/2023 1821 1,4-Dichlorobenzene 50 48 1 96 70-130 04/11/2023 1821 Dichlorodifluoromethane 50 51 1 101 60-140 04/11/2023 1821 1,1-Dichloroethane 50 52 1 105 70-130 04/11/2023 1821 1,2-Dichloroethane 50 58 1 116 70-130 04/11/2023 1821 1,1-Dichloroethene 50 51 1 101 70-130 04/11/2023 1821 cis- 1,2-Dichloroethene 50 51 1 101 70-130 04/11/2023 1821 trans- 1,2-Dichloroethene 50 49 1 97 70-130 04/11/2023 1821 1,2-Dichloropropane 50 54 1 107 70-130 04/11/2023 1821 cis- 1,3-Dichloropropene 50 53 1 105 70-130 04/11/2023 1821 trans- 1,3-Dichloropropene 50 53 1 105 70-130 04/11/2023 1821 Ethylbenzene 50 49 1 97 70-130 04/11/2023 1821 2-Hexanone 100 100 1 102 70-130 04/11/2023 1821 Methyl iodide (lodomethane) 50 52 1 105 70-130 04/11/2023 1821 4-Methyl-2-pentanone 100 120 1 121 70-130 04/11/2023 1821 Methylene chloride 50 63 1 127 70-130 04/11/2023 1821 Styrene 50 49 1 98 70-130 04/11/2023 1821 1,1,1,2-Tetrachloroethane 50 53 1 105 70-130 04/11/2023 1821 1,1,2,2-Tetrachloroethane 50 57 1 114 70-130 04/11/2023 1821 Tetrachloroethene 50 46 1 92 70-130 04/11/2023 1821 Toluene 50 50 1 100 70-130 04/11/2023 1821 1,1,1-Trichloroethane 50 52 1 104 70-130 04/11/2023 1821 1,1,2-Trichloroethane 50 51 1 101 70-130 04/11/2023 1821 Trichloroethene 50 46 1 93 70-130 04/11/2023 1821 Trichlorofluoromethane 50 52 1 103 70-130 04/11/2023 1821 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ72379-002 Matrix: Aqueous Batch:72379 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 53 1 105 70-130 04/11/2023 1821 Vinyl acetate 50 57 1 115 60-140 04/11/2023 1821 Vinyl chloride 50 57 1 114 70-130 04/11/2023 1821 Xylenes (total) 100 99 1 99 70-130 04/11/2023 1821 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 96 70-130 1,2-Dichloroethane-d4 116 70-130 Toluene-d8 92 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 214 of 257 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ72381-001 Matrix: Aqueous Batch: 72381 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone 10 U 1 10 4.0 ug/L 04/11/2023 2328 Acrylonitrile 5.0 U 1 5.0 0.80 ug/L 04/11/2023 2328 Benzene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Bromochloromethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Bromodichloromethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Bromoform 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Bromomethane (Methyl bromide) 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 2-Butanone (MEK) 10 U 1 10 2.0 ug/L 04/11/2023 2328 Carbon disulfide 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Carbon tetrachloride 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Chlorobenzene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Chloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Chloroform 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Chloromethane (Methyl chloride) 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 1,2-Dibromo-3-chloropropane (DBCP) 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Dibromochloromethane 0.50 u 1 0.50 0.40 ug/L 04/11/2023 2328 1,2-Dibromoethane (EDB) 0.50 u 1 0.50 0.40 ug/L 04/11/2023 2328 Dibromomethane (Methylene bromide) 0.50 u 1 0.50 0.40 ug/L 04/11/2023 2328 trans- 1,4-Dichloro-2-butene 2.0 u 1 2.0 0.40 ug/L 04/11/2023 2328 1,2-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 04/11/2023 2328 1,4-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 04/11/2023 2328 Dichlorodifluoromethane 0.50 u 1 0.50 0.40 ug/L 04/11/2023 2328 1,1-Dichloroethane 0.50 u 1 0.50 0.40 ug/L 04/11/2023 2328 1,2-Dichloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 1,1-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 cis- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 trans- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 1,2-Dichloropropane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 cis- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 trans- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Ethylbenzene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 2-Hexanone 10 U 1 10 2.0 ug/L 04/11/2023 2328 Methyl iodide (lodomethane) 5.0 U 1 5.0 0.40 ug/L 04/11/2023 2328 4-Methyl-2-pentanone 10 U 1 10 2.0 ug/L 04/11/2023 2328 Methylene chloride 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Styrene 0.50 U 1 0.50 0.41 ug/L 04/11/2023 2328 1,1,1,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 1,1,2,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Tetrachloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Toluene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 1,1,1-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 1,1,2-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Trichloroethene 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Trichlorofluoromethane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ72381-001 Matrix: Aqueous Batch:72381 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date 1,2,3-Trichloropropane 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Vinyl acetate 5.0 U 1 5.0 1.2 ug/L 04/11/2023 2328 Vinyl chloride 0.50 U 1 0.50 0.40 ug/L 04/11/2023 2328 Xylenes (total) 1.0 U 1 1.0 0.40 ug/L 04/11/2023 2328 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 93 70-130 1,2-Dichloroethane-d4 104 70-130 Toluene-d8 100 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 216 of 257 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ72381-002 Matrix: Aqueous Batch: 72381 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 92 1 92 60-140 04/11/2023 2138 Acrylonitrile 100 120 1 116 70-130 04/11/2023 2138 Benzene 50 57 1 114 70-130 04/11/2023 2138 Bromochloromethane 50 52 1 104 70-130 04/11/2023 2138 Bromodichloromethane 50 50 1 100 70-130 04/11/2023 2138 Bromoform 50 43 1 86 70-130 04/11/2023 2138 Bromomethane (Methyl bromide) 50 45 1 90 70-130 04/11/2023 2138 2-Butanone (MEK) 100 99 1 99 70-130 04/11/2023 2138 Carbon disulfide 50 54 1 108 70-130 04/11/2023 2138 Carbon tetrachloride 50 54 1 108 70-130 04/11/2023 2138 Chlorobenzene 50 52 1 103 70-130 04/11/2023 2138 Chloroethane 50 63 1 126 70-130 04/11/2023 2138 Chloroform 50 53 1 106 70-130 04/11/2023 2138 Chloromethane (Methyl chloride) 50 65 1 129 60-140 04/11/2023 2138 1,2-Dibromo-3-chloropropane (DBCP) 50 53 1 106 70-130 04/11/2023 2138 Dibromochloromethane 50 47 1 95 70-130 04/11/2023 2138 1,2-Dibromoethane (EDB) 50 50 1 101 70-130 04/11/2023 2138 Dibromomethane (Methylene bromide) 50 51 1 103 70-130 04/11/2023 2138 trans- 1,4-Dichloro-2-butene 50 51 1 102 70-130 04/11/2023 2138 1,2-Dichlorobenzene 50 52 1 105 70-130 04/11/2023 2138 1,4-Dichlorobenzene 50 52 1 103 70-130 04/11/2023 2138 Dichlorodifluoromethane 50 58 1 116 60-140 04/11/2023 2138 1,1-Dichloroethane 50 58 1 117 70-130 04/11/2023 2138 1,2-Dichloroethane 50 54 1 108 70-130 04/11/2023 2138 1,1-Dichloroethene 50 52 1 104 70-130 04/11/2023 2138 cis- 1,2-Dichloroethene 50 54 1 108 70-130 04/11/2023 2138 trans- 1,2-Dichloroethene 50 53 1 106 70-130 04/11/2023 2138 1,2-Dichloropropane 50 53 1 106 70-130 04/11/2023 2138 cis- 1,3-Dichloropropene 50 53 1 107 70-130 04/11/2023 2138 trans- 1,3-Dichloropropene 50 53 1 106 70-130 04/11/2023 2138 Ethylbenzene 50 53 1 105 70-130 04/11/2023 2138 2-Hexanone 100 100 1 103 70-130 04/11/2023 2138 Methyl iodide (lodomethane) 50 51 1 102 70-130 04/11/2023 2138 4-Methyl-2-pentanone 100 110 1 108 70-130 04/11/2023 2138 Methylene chloride 50 57 1 115 70-130 04/11/2023 2138 Styrene 50 54 1 107 70-130 04/11/2023 2138 1,1,1,2-Tetrachloroethane 50 49 1 99 70-130 04/11/2023 2138 1,1,2,2-Tetrachloroethane 50 54 1 108 70-130 04/11/2023 2138 Tetrachloroethene 50 49 1 97 70-130 04/11/2023 2138 Toluene 50 54 1 108 70-130 04/11/2023 2138 1,1,1-Trichloroethane 50 55 1 109 70-130 04/11/2023 2138 1,1,2-Trichloroethane 50 50 1 99 70-130 04/11/2023 2138 Trichloroethene 50 49 1 98 70-130 04/11/2023 2138 Trichlorofluoromethane 50 56 1 112 70-130 04/11/2023 2138 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ72381-002 Matrix: Aqueous Batch:72381 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 59 1 119 70-130 04/11/2023 2138 Vinyl acetate 50 55 1 111 60-140 04/11/2023 2138 Vinyl chloride 50 67 N 1 134 70-130 04/11/2023 2138 Xylenes (total) 100 100 1 104 70-130 04/11/2023 2138 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 94 70-130 1,2-Dichloroethane-d4 99 70-130 Toluene-d8 99 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 218 of 257 Volatile Organic Compounds by GC/MS (SIM) - MB Sample ID: YQ72429-001 Matrix: Aqueous Batch:72429 Prep Method: 5030E Analytical Method: 8260D (SIM) Parameter Result Q Dil LOQ DL Units Analysis Date 1,4-Dioxane 3.0 U 1 3.0 1.0 ug/L 04/12/20231003 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 90 40-170 U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS (SIM) - LCS Sample ID: YQ72429-002 Matrix: Aqueous Batch:72429 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 52 1 104 70-130 04/12/2023 0901 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 94 40-170 U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ72496-001 Matrix: Aqueous Batch: 72496 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Acetone 10 U 1 10 4.0 ug/L 04/12/2023 1147 Acrylonitrile 5.0 U 1 5.0 0.80 ug/L 04/12/2023 1147 Benzene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Bromochloromethane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Bromodichloromethane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Bromoform 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Bromomethane (Methyl bromide) 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 2-Butanone (MEK) 10 U 1 10 2.0 ug/L 04/12/2023 1147 Carbon disulfide 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Carbon tetrachloride 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Chlorobenzene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Chloroethane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Chloroform 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Chloromethane (Methyl chloride) 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 1,2-Dibromo-3-chloropropane (DBCP) 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Dibromochloromethane 0.50 u 1 0.50 0.40 ug/L 04/12/2023 1147 1,2-Dibromoethane (EDB) 0.50 u 1 0.50 0.40 ug/L 04/12/2023 1147 Dibromomethane (Methylene bromide) 0.50 u 1 0.50 0.40 ug/L 04/12/2023 1147 trans- 1,4-Dichloro-2-butene 2.0 u 1 2.0 0.40 ug/L 04/12/2023 1147 1,2-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 04/12/2023 1147 1,4-Dichlorobenzene 0.50 u 1 0.50 0.40 ug/L 04/12/2023 1147 Dichlorodifluoromethane 0.50 u 1 0.50 0.40 ug/L 04/12/2023 1147 1,1-Dichloroethane 0.50 u 1 0.50 0.40 ug/L 04/12/2023 1147 1,2-Dichloroethane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 1,1-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 cis- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 trans- 1,2-Dichloroethene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 1,2-Dichloropropane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 cis- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 trans- 1,3-Dichloropropene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Ethylbenzene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 2-Hexanone 10 U 1 10 2.0 ug/L 04/12/2023 1147 Methyl iodide (lodomethane) 5.0 U 1 5.0 0.40 ug/L 04/12/2023 1147 4-Methyl-2-pentanone 10 U 1 10 2.0 ug/L 04/12/2023 1147 Methylene chloride 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Styrene 0.50 U 1 0.50 0.41 ug/L 04/12/2023 1147 1,1,1,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 1,1,2,2-Tetrachloroethane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Tetrachloroethene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Toluene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 1,1,1-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 1,1,2-Trichloroethane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Trichloroethene 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Trichlorofluoromethane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ72496-001 Matrix: Aqueous Batch:72496 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date 1,2,3-Trichloropropane 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Vinyl acetate 5.0 U 1 5.0 1.2 ug/L 04/12/2023 1147 Vinyl chloride 0.50 U 1 0.50 0.40 ug/L 04/12/2023 1147 Xylenes (total) 1.0 U 1 1.0 0.40 ug/L 04/12/2023 1147 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 108 70-130 1,2-Dichloroethane-d4 119 70-130 Toluene-d8 96 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 222 of 257 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ72496-002 Matrix: Aqueous Batch: 72496 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Acetone 100 300 N 1 300 60-140 04/12/2023 1009 Acrylonitrile 100 180 N 1 177 70-130 04/12/2023 1009 Benzene 50 52 1 105 70-130 04/12/2023 1009 Bromochloromethane 50 50 1 99 70-130 04/12/2023 1009 Bromodichloromethane 50 52 1 105 70-130 04/12/2023 1009 Bromoform 50 46 1 93 70-130 04/12/2023 1009 Bromomethane (Methyl bromide) 50 44 1 88 70-130 04/12/2023 1009 2-Butanone (MEK) 100 160 N 1 158 70-130 04/12/2023 1009 Carbon disulfide 50 65 1 130 70-130 04/12/2023 1009 Carbon tetrachloride 50 51 1 103 70-130 04/12/2023 1009 Chlorobenzene 50 50 1 101 70-130 04/12/2023 1009 Chloroethane 50 55 1 110 70-130 04/12/2023 1009 Chloroform 50 55 1 110 70-130 04/12/2023 1009 Chloromethane (Methyl chloride) 50 56 1 113 60-140 04/12/2023 1009 1,2-Dibromo-3-chloropropane (DBCP) 50 58 1 116 70-130 04/12/2023 1009 Dibromochloromethane 50 53 1 106 70-130 04/12/2023 1009 1,2-Dibromoethane (EDB) 50 53 1 107 70-130 04/12/2023 1009 Dibromomethane (Methylene bromide) 50 56 1 112 70-130 04/12/2023 1009 trans- 1,4-Dichloro-2-butene 50 54 1 109 70-130 04/12/2023 1009 1,2-Dichlorobenzene 50 51 1 101 70-130 04/12/2023 1009 1,4-Dichlorobenzene 50 51 1 102 70-130 04/12/2023 1009 Dichlorodifluoromethane 50 46 1 93 60-140 04/12/2023 1009 1,1-Dichloroethane 50 53 1 106 70-130 04/12/2023 1009 1,2-Dichloroethane 50 58 1 116 70-130 04/12/2023 1009 1,1-Dichloroethene 50 56 1 112 70-130 04/12/2023 1009 cis- 1,2-Dichloroethene 50 50 1 100 70-130 04/12/2023 1009 trans- 1,2-Dichloroethene 50 50 1 100 70-130 04/12/2023 1009 1,2-Dichloropropane 50 54 1 109 70-130 04/12/2023 1009 cis- 1,3-Dichloropropene 50 54 1 107 70-130 04/12/2023 1009 trans- 1,3-Dichloropropene 50 55 1 109 70-130 04/12/2023 1009 Ethylbenzene 50 52 1 103 70-130 04/12/2023 1009 2-Hexanone 100 100 1 102 70-130 04/12/2023 1009 Methyl iodide (lodomethane) 50 57 1 113 70-130 04/12/2023 1009 4-Methyl-2-pentanone 100 130 1 127 70-130 04/12/2023 1009 Methylene chloride 50 67 N 1 134 70-130 04/12/2023 1009 Styrene 50 51 1 102 70-130 04/12/2023 1009 1,1,1,2-Tetrachloroethane 50 54 1 107 70-130 04/12/2023 1009 1,1,2,2-Tetrachloroethane 50 59 1 117 70-130 04/12/2023 1009 Tetrachloroethene 50 49 1 98 70-130 04/12/2023 1009 Toluene 50 53 1 106 70-130 04/12/2023 1009 1,1,1-Trichloroethane 50 52 1 105 70-130 04/12/2023 1009 1,1,2-Trichloroethane 50 52 1 104 70-130 04/12/2023 1009 Trichloroethene 50 47 1 95 70-130 04/12/2023 1009 Trichlorofluoromethane 50 50 1 100 70-130 04/12/2023 1009 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 223 of 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ72496-002 Matrix: Aqueous Batch:72496 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 58 1 115 70-130 04/12/2023 1009 Vinyl acetate 50 59 1 118 60-140 04/12/2023 1009 Vinyl chloride 50 54 1 107 70-130 04/12/2023 1009 Xylenes (total) 100 100 1 103 70-130 04/12/2023 1009 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 97 70-130 1,2-Dichloroethane-d4 113 70-130 Toluene-d8 93 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 224 of 257 Volatile Organic Compounds by GC/MS (SIM) - MB Sample ID: YQ72586-001 Matrix: Aqueous Batch:72586 Prep Method: 5030E Analytical Method: 8260D (SIM) Parameter Result Q Dil LOQ DL Units Analysis Date 1,4-Dioxane 3.0 U 1 3.0 1.0 ug/L 04/13/20231049 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 96 40-170 U = Not detected at or above the LOD 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 225 of 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS (SIM) - LCS Sample ID: YQ72586-002 Matrix: Aqueous Batch:72586 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 53 1 106 70-130 04/13/2023 0930 Surrogate 1,2-Dichloroethane-d4 LOQ = Limit of Quantitation DL = Detection Limit Acceptance Q % Rec Limit 101 40-170 U = Not detected at or above the LOD 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 226 of 257 QC Data for Lot Number: YD05007 Volatile Organic Compounds by GC/MS - MB Sample ID: YQ73259-001 Matrix: Aqueous Batch:73259 Prep Method: 5030E Analytical Method: 8260D Parameter Result Q Dil LOQ DL Units Analysis Date Methylene chloride 0.50 U 1 0.50 0.40 ug/L 04/21/2023 0000 Acceptance Surrogate Q % Rec Limit Bromofluorobenzene 94 70-130 1,2-Dichloroethane-d4 103 70-130 Toluene-d8 98 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 227 of 257 Volatile Organic Compounds by GC/MS - LCS Sample ID: YQ73259-002 Matrix: Aqueous Batch:73259 Prep Method: 5030E Analytical Method: 8260D Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Methylene chloride 50 44 1 88 70-130 04/20/2023 2202 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 88 70-130 1,2-Dichloroethane-d4 83 70-130 Toluene-d8 89 70-130 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 228 of 257 Semivolatile Organic Compounds by GC/MS - MB Sample ID: YQ72208-001 Matrix: Aqueous Batch:72208 Prep Method: 3520C Analytical Method: 8270E Prep Date: 04/10/2023 1000 Parameter Result Q Dil LOQ DL Units Analysis Date bis(2-Ethy1hexy1)phtha1ate 4.0 U 1 4.0 1.5 ug/L 04/11/20231158 Acceptance Surrogate Q % Rec Limit 2-Fluorobiphenyl 76 37-129 2-Fluorophenol 45 24-127 Nitrobenzene-d5 82 38-127 Phenol-d5 53 28-128 TerphenyIA14 93 10-148 2,4,6-Tribromophenol 69 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 229 of 257 Semivolatile Organic Compounds by GC/MS - LCS Sample ID: YQ72208-002 Matrix: Aqueous Batch:72208 Prep Method: 3520C Analytical Method: 8270E Prep Date: 04/10/2023 1000 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date bis(2-Ethy1hexy1)phtha1ate 40 40 1 100 30-130 04/11/20231223 Surrogate Q % Rec Acceptance Limit 2-Fluorobiphenyl 79 37-129 2-Fluorophenol 80 24-127 Nitrobenzene-d5 94 38-127 Phenol-d5 86 28-128 TerphenyIA14 89 10-148 2,4,6-Tribromophenol 76 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: YD05007 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 230 of 257 Dissolved Gases - MB Sample ID: YQ72481-001 Matrix: Aqueous Batch:72481 Analytical Method: RSK - 175 Parameter Result Q Dil LOQ DL Units Analysis Date Ethane 10 U 1 10 2.5 ug/L 04/11/20231056 Ethene 10 U 1 10 2.5 ug/L 04/11/20231056 Methane 3.2 J 1 10 2.5 ug/L 04/11/20231056 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 231 of 257 QC Data for Lot Number: YD05007 Dissolved Gases - LCS Sample ID: YQ72481-002 Matrix: Aqueous Batch:72481 Analytical Method: RSK - 175 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Ethane 550 580 1 105 70-130 04/11/2023 0943 Ethene 520 530 1 102 70-130 04/11/2023 0943 Methane 300 280 1 96 70-130 04/11/2023 0943 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 232 of 257 QC Data for Lot Number: YD05007 Dissolved Gases - LCSD Sample ID: YQ72481-003 Matrix: Aqueous Batch:72481 Analytical Method: RSK - 175 Spike Amount Result %Rec % RPD Parameter (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Ethane 550 590 1 107 2.0 70-130 30 04/11/20231040 Ethene 520 540 1 104 2.0 70-130 30 04/11/20231040 Methane 300 290 1 98 1.8 70-130 30 04/11/20231040 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 233 of 257 QC Data for Lot Number: YD05007 ICP-MS Metals - MB Sample ID: YQ72256-001 Matrix: Aqueous Batch: 72256 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/10/2023 1837 Parameter Result Q Dil LOQ DL Units Analysis Date Antimony 2.0 U 1 2.0 0.50 ug/L 04/12/20231556 Arsenic 2.0 U 1 2.0 1.3 ug/L 04/12/20231556 Barium 5.0 U 1 5.0 1.3 ug/L 04/12/20231556 Beryllium 0.40 U 1 0.40 0.15 ug/L 04/12/20231556 Cadmium 0.50 U 1 0.50 0.13 ug/L 04/12/20231556 Chromium 5.0 U 1 5.0 1.3 ug/L 04/12/20231556 Cobalt 5.0 U 1 5.0 1.3 ug/L 04/12/20231556 Copper 5.0 U 1 5.0 1.3 ug/L 04/12/20231556 Iron 50 U 1 50 13 ug/L 04/12/20231556 Lead 1.0 U 1 1.0 0.25 ug/L 04/12/20231556 Nickel 5.0 U 1 5.0 1.3 ug/L 04/12/20231556 Selenium 5.0 U 1 5.0 1.3 ug/L 04/12/20231556 Silver 1.0 U 1 1.0 0.25 ug/L 04/12/20231556 Sodium 400 U 1 400 150 ug/L 04/12/20231556 Thallium 0.50 U 1 0.50 0.15 ug/L 04/12/20231556 Vanadium 5.0 U 1 5.0 2.5 ug/L 04/12/20231556 Zinc 10 U 1 10 2.5 ug/L 04/12/20231556 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 234 of 257 QC Data for Lot Number: YD05007 ICP-MS Metals - LCS Sample ID: YQ72256-002 Matrix: Aqueous Batch: 72256 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/10/2023 1837 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 100 96 1 96 80-120 04/12/20231608 Arsenic 100 95 1 95 80-120 04/12/20231608 Barium 100 99 1 99 80-120 04/12/20231608 Beryllium 100 92 1 92 80-120 04/12/20231608 Cadmium 100 93 1 93 80-120 04/12/20231608 Chromium 100 100 1 101 80-120 04/12/20231608 Cobalt 100 99 1 99 80-120 04/12/20231608 Copper 100 110 1 106 80-120 04/12/20231608 Iron 1000 1000 1 103 80-120 04/12/20231608 Lead 100 100 1 104 80-120 04/12/20231608 Nickel 100 98 1 98 80-120 04/12/20231608 Selenium 100 87 1 87 80-120 04/12/20231608 Silver 100 100 1 102 80-120 04/12/20231608 Sodium 1000 960 1 96 80-120 04/12/20231608 Thallium 100 100 1 103 80-120 04/12/20231608 Vanadium 100 99 1 99 80-120 04/12/20231608 Zinc 100 95 1 95 80-120 04/12/20231608 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 235 of 257 QC Data for Lot Number: YD05007 ICP-MS Metals - MS Sample ID: YD05007-003MS Matrix: Aqueous Batch: 72256 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/10/2023 1837 Sample Spike Amount Amount Result %Rec Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 0.0 100 94 1 94 75-125 04/12/20231750 Arsenic 0.0 100 87 1 87 75-125 04/12/20231750 Barium 100 100 200 1 97 75-125 04/12/20231750 Beryllium 0.34 100 95 1 94 75-125 04/12/20231750 Cadmium 0.0 100 95 1 95 75-125 04/12/20231750 Chromium 5.3 100 100 1 98 75-125 04/12/20231750 Cobalt 1.7 100 85 1 84 75-125 04/12/2023 1750 Copper 3.0 100 100 1 97 75-125 04/12/20231750 Iron 1600 1000 3300 N 1 174 75-125 04/12/20231750 Lead 0.51 100 99 1 98 75-125 04/12/20231750 Nickel 2.9 100 86 1 83 75-125 04/12/20231750 Selenium 0.0 100 84 1 84 75-125 04/12/20231750 Silver 0.0 100 95 1 95 75-125 04/12/20231750 Sodium 9100 1000 10000 1 97 75-125 04/12/20231750 Thallium 0.0 100 98 1 98 75-125 04/12/20231750 Vanadium 3.9 100 100 1 97 75-125 04/12/20231750 Zinc 13 100 100 1 91 75-125 04/12/20231750 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 236 of 257 QC Data for Lot Number: YD05007 ICP-MS Metals - MSD Sample ID: YD05007-003MD Matrix: Aqueous Batch: 72256 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/10/2023 1837 Sample Spike Amount Amount Result %Rec % RPD Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Antimony 0.0 100 93 1 93 1.9 75-125 20 04/12/20231802 Arsenic 0.0 100 86 1 86 1.3 75-125 20 04/12/20231802 Barium 100 100 200 1 94 1.5 75-125 20 04/12/20231802 Beryllium 0.34 100 93 1 93 1.7 75-125 20 04/12/20231802 Cadmium 0.0 100 93 1 93 1.3 75-125 20 04/12/20231802 Chromium 5.3 100 100 1 95 3.0 75-125 20 04/12/20231802 Cobalt 1.7 100 85 1 83 0.72 75-125 20 04/12/2023 1802 Copper 3.0 100 97 1 94 2.6 75-125 20 04/12/20231802 Iron 1600 1000 3200 N 1 159 4.5 75-125 20 04/12/20231802 Lead 0.51 100 97 1 96 2.0 75-125 20 04/12/20231802 Nickel 2.9 100 85 1 82 0.85 75-125 20 04/12/20231802 Selenium 0.0 100 82 1 82 1.9 75-125 20 04/12/20231802 Silver 0.0 100 93 1 93 3.0 75-125 20 04/12/20231802 Sodium 9100 1000 9900 1 80 1.7 75-125 20 04/12/20231802 Thallium 0.0 100 96 1 96 2.1 75-125 20 04/12/20231802 Vanadium 3.9 100 98 1 94 2.5 75-125 20 04/12/20231802 Zinc 13 100 100 1 89 2.1 75-125 20 04/12/20231802 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 237 of 257 QC Data for Lot Number: YD05007 ICP-MS Metals - MB Sample ID: YQ72257-001 Matrix: Aqueous Batch: 72257 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/10/2023 1837 Parameter Result Q Dil LOQ DL Units Analysis Date Antimony 2.0 U 1 2.0 0.50 ug/L 04/12/2023 2139 Arsenic 2.0 U 1 2.0 1.3 ug/L 04/12/2023 2139 Barium 5.0 U 1 5.0 1.3 ug/L 04/12/2023 2139 Beryllium 0.40 U 1 0.40 0.15 ug/L 04/12/2023 2139 Cadmium 0.50 U 1 0.50 0.13 ug/L 04/12/2023 2139 Chromium 5.0 U 1 5.0 1.3 ug/L 04/12/2023 2139 Cobalt 5.0 U 1 5.0 1.3 ug/L 04/12/2023 2139 Copper 5.0 U 1 5.0 1.3 ug/L 04/12/2023 2139 Lead 1.0 U 1 1.0 0.25 ug/L 04/12/2023 2139 Nickel 5.0 U 1 5.0 1.3 ug/L 04/12/2023 2139 Selenium 5.0 U 1 5.0 1.3 ug/L 04/12/2023 2139 Silver 1.0 U 1 1.0 0.25 ug/L 04/12/2023 2139 Thallium 0.50 U 1 0.50 0.15 ug/L 04/12/2023 2139 Vanadium 5.0 U 1 5.0 2.5 ug/L 04/12/2023 2139 Zinc 10 U 1 10 2.5 ug/L 04/12/2023 2139 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 238 of 257 QC Data for Lot Number: YD05007 ICP-MS Metals - LCS Sample ID: YQ72257-002 Matrix: Aqueous Batch: 72257 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/10/2023 1837 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 100 95 1 95 80-120 04/12/2023 2236 Arsenic 100 96 1 96 80-120 04/12/2023 2236 Barium 100 96 1 96 80-120 04/12/2023 2236 Beryllium 100 90 1 90 80-120 04/12/2023 2236 Cadmium 100 94 1 94 80-120 04/12/2023 2236 Chromium 100 100 1 102 80-120 04/12/2023 2236 Cobalt 100 100 1 104 80-120 04/12/2023 2236 Copper 100 110 1 107 80-120 04/12/2023 2236 Lead 100 100 1 100 80-120 04/12/2023 2236 Nickel 100 100 1 102 80-120 04/12/2023 2236 Selenium 100 85 1 85 80-120 04/12/2023 2236 Silver 100 100 1 103 80-120 04/12/2023 2236 Thallium 100 99 1 99 80-120 04/12/2023 2236 Vanadium 100 98 1 98 80-120 04/12/2023 2236 Zinc 100 94 1 94 80-120 04/12/2023 2236 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 239 of 257 QC Data for Lot Number: YD05007 ICP-MS Metals - MS Sample ID: YD05007-025MS Matrix: Aqueous Batch: 72257 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/10/2023 1837 Sample Spike Amount Amount Result %Rec Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Antimony 0.0 100 99 1 99 75-125 04/13/2023 0104 Arsenic 0.0 100 100 1 101 75-125 04/13/2023 0104 Barium 16 100 110 1 98 75-125 04/13/2023 0104 Beryllium 0.0 100 96 1 96 75-125 04/13/2023 0104 Cadmium 0.0 100 98 1 98 75-125 04/13/2023 0104 Chromium 3.1 100 110 1 104 75-125 04/13/2023 0104 Cobalt 0.0 100 100 1 102 75-125 04/13/2023 0104 Copper 0.0 100 110 1 108 75-125 04/13/2023 0104 Lead 0.0 100 100 1 102 75-125 04/13/2023 0104 Nickel 0.0 100 100 1 101 75-125 04/13/2023 0104 Selenium 0.0 100 94 1 94 75-125 04/13/2023 0104 Silver 0.0 100 100 1 101 75-125 04/13/2023 0104 Thallium 0.0 100 100 1 103 75-125 04/13/2023 0104 Vanadium 4.0 100 100 1 101 75-125 04/13/2023 0104 Zinc 0.0 100 100 1 102 75-125 04/13/2023 0104 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 240 of 257 QC Data for Lot Number: YD05007 ICP-MS Metals - MSD Sample ID: YD05007-025MD Matrix: Aqueous Batch: 72257 Prep Method: 3005A Analytical Method: 6020B Prep Date: 04/10/2023 1837 Sample Spike Amount Amount Result %Rec % RPD Parameter (ug/L) (ug/L) (ug/L) Q Dil % Rec % RPD Limit Limit Analysis Date Antimony 0.0 100 97 1 97 1.2 75-125 20 04/13/2023 0116 Arsenic 0.0 100 100 1 100 0.76 75-125 20 04/13/2023 0116 Barium 16 100 110 1 97 1.3 75-125 20 04/13/2023 0116 Beryllium 0.0 100 95 1 95 1.1 75-125 20 04/13/2023 0116 Cadmium 0.0 100 98 1 98 0.0066 75-125 20 04/13/2023 0116 Chromium 3.1 100 110 1 104 0.36 75-125 20 04/13/2023 0116 Cobalt 0.0 100 100 1 101 0.51 75-125 20 04/13/2023 0116 Copper 0.0 100 110 1 107 0.93 75-125 20 04/13/2023 0116 Lead 0.0 100 100 1 100 2.0 75-125 20 04/13/2023 0116 Nickel 0.0 100 100 1 101 0.25 75-125 20 04/13/2023 0116 Selenium 0.0 100 94 1 94 0.29 75-125 20 04/13/2023 0116 Silver 0.0 100 100 1 100 1.5 75-125 20 04/13/2023 0116 Thallium 0.0 100 100 1 101 1.6 75-125 20 04/13/2023 0116 Vanadium 4.0 100 100 1 100 0.40 75-125 20 04/13/2023 0116 Zinc 0.0 100 100 1 101 1.0 75-125 20 04/13/2023 0116 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 241 of 257 QC Data for Lot Number: YD05007 CVAA -MB Sample ID: YQ72166-001 Matrix: Aqueous Batch: 72166 Prep Method: Analytical Method: 7470A Prep Date: 04/12/2023 1239 Parameter Result Q Dil LOQ DL Units Analysis Date Mercury 0.00020 U 1 0.00020 0.000091 mg/L 04/27/20231512 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 242 of 257 QC Data for Lot Number: YD05007 CVAA - LCS Sample ID: YQ72166-002 Matrix: Aqueous Batch: 72166 Prep Method: Analytical Method: 7470A Prep Date: 04/12/2023 1239 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Mercury 0.0020 0.0022 1 108 80-120 04/27/20231514 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 243 of 257 QC Data for Lot Number: YD05007 CVAA - MS Sample ID: YD05007-01OMS Matrix: Aqueous Batch: 72166 Prep Method: Analytical Method: 7470A Prep Date: 04/12/2023 1239 Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Mercury 0.0 0.0020 0.0021 1 106 80-120 04/27/20231555 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 244 of 257 QC Data for Lot Number: YD05007 CVAA - MSD Sample ID: YD05007-01OMD Matrix: Aqueous Batch: 72166 Prep Method: Analytical Method: 7470A Prep Date: 04/12/2023 1239 Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Mercury 0.0 0.0020 0.0021 1 105 1.2 80-120 20 04/27/20231557 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 245 of 257 QC Data for Lot Number: YD05007 CVAA -MB Sample ID: YQ73236-001 Matrix: Aqueous Batch:73236 Prep Method: Analytical Method: 7470A Prep Date: 04/24/2023 1021 Parameter Result Q Dil LOQ DL Units Analysis Date Mercury 0.00020 U 1 0.00020 0.000091 mg/L 04/27/20231423 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 246 of 257 QC Data for Lot Number: YD05007 CVAA - LCS Sample ID: YQ73236-002 Matrix: Aqueous Batch:73236 Prep Method: Analytical Method: 7470A Prep Date: 04/24/2023 1021 Spike Amount Result %Rec Parameter (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Mercury 0.0020 0.0019 1 96 80-120 04/27/20231426 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 247 of 257 QC Data for Lot Number: YD05007 CVAA - MS Sample ID: YD05007-026MS Matrix: Aqueous Batch:73236 Prep Method: Analytical Method: 7470A Prep Date: 04/24/2023 1021 Sample Spike Amount Amount Result %Rec Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec Limit Analysis Date Mercury 0.0 0.0020 0.0020 1 98 80-120 04/27/20231450 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 248 of 257 QC Data for Lot Number: YD05007 CVAA - MSD Sample ID: YD05007-026MD Matrix: Aqueous Batch:73236 Prep Method: Analytical Method: 7470A Prep Date: 04/24/2023 1021 Sample Spike Amount Amount Result %Rec % RPD Parameter (mg/L) (mg/L) (mg/L) Q Dil % Rec % RPD Limit Limit Analysis Date Mercury 0.0 0.0020 0.0019 1 94 4.0 80-120 20 04/27/20231453 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 249 of 257 QC Data for Lot Number: YD05007 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 250 of 257 PACE ANALYTICAL SERVICES, LLC � r � L• }t^S ����rS•}y"+.,lye fdCFJf.i� q t�41'w-4'+wl:t� $ 13� Nl ; ,w a9o- {� pp*6 w, I � 'a'ri4i � � �sam•�'4 g MM1 n"5 X� `�i ..n rw A 3 2 7 4 p IL ❑ [� 4U LY t7 tx w t t � W t+ I 5 Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 251 of 257 PACE ANALYTICAL SERVICES, LLC w } a S7vyzw �'��tl�"3:Cf 4 V kl; 1-Vu:1Sb ' - 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P1tR5C hate n1 the C90im eLlts belyx' 'aluple of 14A urrr ItticitlCl tvjjl3 h ibblea>6 iiim iri Lacieru' . ,IIFles(s) KA were received with -= > 0_3 i1gVL (If W is Mo) 3uld were f.45teft acflwrd ngly in snniplc rcreivR* wirll iodhux iWost11fC.m nj-13,Qa) ht ,;n igiw M: NA {'nanmenis_ Qualtrax ILYr !2Tr3W Par)24' LnaJydCh1 S@FViCQ51. 11C Page 1 of j Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 253 of 257 PACE ANALYTICAL SERVICES. LLC no o I F I fi C5 [] � I I '�"a'�'+'�•fiiY •7J e L � t _ F~ •- 4 rl � u i 'c IR"p 1 g un i is / v I III. }�+ 7�, . ?e- } +{ ' X x }� ' � F � R o 22 ELU — � LL IU OL _ rt %J C L L •.+ I iT � 1 i] � � �' C � -Tom£-Ey 4i I [� 1-T- � - I, I e 'AIj # � 'pper d Ln I 3 F 91 I :L i 5 y A, tE ! ea aS Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 254 of 257 PACE ANALYTICAL SERVICES, LLC cc �- q �� G �c-, E z 13. 29 rr FS LA I 4d:itLYq.c .y,�p L irw +� I I try Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 255 of 257 PACE ANALYTICAL SERVICES, LLC 4 9S I+ L r �t � Cal t= � A 4jti Lf5 Iri . r v k 3 — LA � y 1I i Dr Dr F MMMMMMMIMMI Y I I r � 1Oj B 13. n 4t i i +3 F. Es ' 4 cc � a { 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 256 of 257 PACE ANALYTICAL SERVICES, LLC I?C#_iide: FNV FRM WOOL•U286vt12_SamplesReceipt Ciiecoistisr;q Eflacfhte Da Ew 80J2022 Sample Receipt C'i>teddieg-t (SR(') Client` casks ,.,;u_ _ C001n• Im eared be��'dnm: r{nx , narrlar�crf_+ LuL 4: YD3' 50GV'c Df,5008 emtarcaeipt: Face ClieLM TiP4 FerIF ;:t[Ltrr: 'rs jVfj-'qOj I_ 'LY'mr cxistr`L vsealz jwp-. irs pIt The a ¢oiL Ycs Vo 1/ 1€A 2_ lf£Rs1afLc uals xc�erz 11 e5'T1t. 1rt7r t;iey"ialaxt a7t1� 4L3bJ G>y2L1? p $a* mg. 22•isso C'1,lariFke 3UjpID; :��av ie�te�1 xrrx QfHU 1k911E!J lP&U LLr upCAI rcccipt i Dieiivad (C:orrecled) fenaperat" k1POe it'L:e=pr �nSolitl 6r2113-U la ID. 2.9 2.19 aO _3 n f 33 GO 1.9 j 1.9 oC NA iNA �O Arefhorl' � tmptawrcza Slunk 9- 110 Bogies 1L 5u1 M., 9 1R Gun tsar: action factov! C 'O cJharl ot'cp 1,971f' Lx� W471 Icc R4! R. ;. cw M I7ry Ice FNona �Yest ❑�+y ��;� �_ Wrtc [Ill C001'21'S 1'�C�t'ed at ar hetr�a' G.{Y'C`7 Fi-ti41_ L4'.ts PLn�eEt 1w�sul:urer ifJ>z;{7 pirl u'res hTUEe{ied Lty: pllaw i culail r fake-m-fice (Cirda uui_:). 'r'e{ No yrl tkA 4. 1, ate L-V13rnELrFAI CCn1rjeE'B PaCkiL g SEp gifMCilOd r41kS RR )p . Ysy No 5. were properrllctntlypr� rcdLJres (1x ' rtlslre�+teaeiSeuQ Fullouad'.' ye -a 6. WeM uUnplc 12)f b91C-'d{rJ1 Ube COC a13i1 al.l Salome ciratnulere? 1 e'er, NLl 7, Was Q,011ediou date & hme listed on di•e CY]{`_ and alt saanlple L.`oujEj iSLepj'9 +7 Y NI) & Did all ccuim=r iabef iiifernL^_rion %Tn, datp. time] EIP-CL Wills aw CUC? 17 ye5 NC` 9- Were tno Lo Le PCrforurert listed Mi. file MCI, I'; l ,£� El JE ❑ 0 10. Did AS rtutp.c9 ar&4- ia the proper ton brine for e�11 teat ancll 1v ill d cSnulii�i (lulbrOkell.lid5 (M. cw.)- YcE. ;Ju +P IJ. W-u*aLduquirte aamplekvnlnwteaivAi1;Lble rC old7ng Ft1� or �"�iMirS. llJa5eL�f cunl� �iL'sE°Y Zet Ql`,) 13. WCltefit 9MUpleSCMUfiFkersaccrnlnteC1trr{'{ ljrEn�u---E!L•ss) [Z]Y ❑1+I# ph;ri, 14. Were VOA. 6015C Eurd RSK-1 ; 5 Iqntlles f u! diacbblas �"pr t-size" t`f "nt' {1L117�S itr Jinn-omer) t 1 <oiy of dic VOA. +:iglu'' R(I Ycs No 'NA 15. 1'verc Ail at 2.P11 al` 14 ' 2Slxi ifi, i7 UC AOCY0110e S111VIL°S MNMiS-ed Mt a PH 12 Rftd MAfidr AaMptaK nece il-O.d . t a I.IH:- 9? �J'IYas �ha Q�� l7. were all elrl:hr: J r� +rlilffsyatide�ilueaUG35_ r 0,5.ju ) �iim tp k's frea of U2SidLVJ 41lC73ne? ©YC'S ❑ NJ I a-11h t R. kYis G- {jvotc iiiial av l iLd on Hie cortr: 'n er �a? If yes- Qnuie k Vr'esw a iioa he cnrrjrleted C'JL i¢Ly seu>lxlcf�, iutnLxeesly PN,se,Ted a-%vilh FerApitce.; v,'cnr Mceived incovectly P-estr,td au.ly= x4jm%d 3CCUr't1iTYo1}' I sa%&t 1rtizmivtilzv h N-"L uii of ej C r QlIf! H2SO4.111\03. EC:ir N. OH 9>51llg SRC Tiwr of lxr =,aT1w NA . If mare than one lrrt a nlrti,z is ueawec! please note ii1 xlu cor�LL,,r,T^s to krR, NA xtam received witli lovblAes --6 mm in d1ar9meita _ ;.F1lrlfj'teFAS) — were iYti-Lasud with TR47> 0,5 nlV'L (IF81_9 is no) Ltndlire1e dklSte-d RCCC,14i37ply ill satul:le 11eCe-hrbg Mith so311L*n1WGsk--1brte (Na S�O,) vnt11 Unique M; NA CoLuiue vtz_ Qualtrax ID., 563W Nue;�' Arraly'ti a 5erviaes, LL-' F-z!,e I r1F 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 257 of 257 (� aceAna/ytical 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 05/01/2023 Report Y 223041439 �1��i �1��i �1��i �1��i �1��i �1��i �1��i �1��i �1��i III Project North Wake YD05007 Samples Collected 4/4/23 - 4/5/23 106 Vantage Point Drive West Columbia, SC 29172 (803)791-9700 Additional Recipients NONE ACCREDITED CERT # 6429.01 Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 1 of 16 Report#: 223041439 ace k k+ytUh Project ID: North Wake YD05007 Report Date: 05/O1/2023 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. �� Y�29a Authorized Signature Pace Gulf Coast Report 223041439 Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 2 of 16 PaceA;U44Uh' Report#: 223041439 Project ID: North Wake YD05007 Certifications Report Date: 05/01/2023 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#: 223041439 05/01/2023 12:52 Page 3 of 16 Report#: 223041439 ace k k+ytUh Project ID: North Wake YD05007 Report Date: 05/01/2023 Case Narrative Client: Pace Analytical Services South Carolina Report: 223041439 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#: 223041439 05/01/2023 12:52 Page 4 of 16 ace k k+ytUh Report#: 223041439 Project ID: North Wake YD05007 Report Date: 05/01/2023 Sample Summary Lab ID Client ID Matrix Collect Date Receive Date 22304143901 MW-9 Water 4/04/23 12:10 4/14/23 09:39 22304143902 MW-36 Water 4/04/23 12:45 4/14/23 09:39 22304143903 MW-34 Water 4/04/23 14:20 4/14/23 09:39 22304143904 MW-34d Water 4/04/23 15:00 4/14/23 09:39 22304143905 MW-5R Water 4/04/23 15:40 4/14/23 09:39 22304143906 MW-10 Water 4/05/23 09:15 4/14/23 09:39 22304143907 MW-6 Water 4/05/23 11:10 4/14/23 09:39 22304143908 MW-8 Water 4/05/23 12:42 4/14/23 09:39 22304143909 MW-11 Water 4/05/23 16:45 4/14/23 09:39 22304143910 MW-5R Bubble Strip 4/05/23 11:52 4/14/23 09:39 22304143911 MW-6 Bubble Strip 4/05/23 11:28 4/14/23 09:39 22304143912 MW-8 Bubble Strip 4/05/23 12:42 4/14/23 09:39 Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 5 of 16 k Report#: 223041439 ace k+ytUh Project ID: North Wake YD05007 Report Date: 05/01/2023 Detect Summary Results and Detection Limits are adjusted for dilution and moisture when applicable AM23G Lab ID Client ID Parameter Units Result Dil. %Moist 22304143901 MW-9 Acetic Acid mg/L 1.6J 10 NA 22304143901 MW-9 Formic Acid mg/L 54 10 NA 22304143902 MW-36 Acetic Acid mg/L 0.42J 1 NA 22304143902 MW-36 Formic Acid mg/L 6.5 1 NA 22304143902 MW-36 Hexanoic Acid mg/L 0.064J 1 NA 22304143902 MW-36 Lactic Acid mg/L 0.18J 1 NA 22304143903 MW-34 Acetic Acid mg/L 0.43J 1 NA 22304143903 MW-34 Formic Acid mg/L 6.3 1 NA 22304143904 MW-34d Acetic Acid mg/L 0.40J 1 NA 22304143904 MW-34d Formic Acid mg/L 6.1 1 NA 22304143905 MW-5R Acetic Acid mg/L 0.73 1 NA 22304143905 MW-5R Formic Acid mg/L 6.5 1 NA 22304143905 MW-5R Hexanoic Acid mg/L 0.071J 1 NA 22304143906 MW-10 Acetic Acid mg/L 0.47J 1 NA 22304143906 MW-10 Formic Acid mg/L 6.5 1 NA 22304143906 MW-10 Hexanoic Acid mg/L 0.22J 1 NA 22304143906 MW-10 Propionic Acid mg/L 0.064J 1 NA 22304143907 MW-6 Acetic Acid mg/L 2.OJ 10 NA 22304143907 MW-6 Formic Acid mg/L 61 10 NA 22304143907 MW-6 Hexanoic Acid mg/L 0.75J 10 NA 22304143908 MW-8 Acetic Acid mg/L 1.7J 10 NA 22304143908 MW-8 Formic Acid mg/L 51 10 NA 22304143909 MW-11 Acetic Acid mg/L 0.46J 1 NA 22304143909 MW-11 Formic Acid mg/L 6.7 1 NA 22304143909 MW-11 Hexanoic Acid mg/L 0.062J 1 NA 22304143909 MW-11 Propionic Acid mg/L 0.059J 1 NA AM20GAX Lab ID Client ID Parameter Units Result Dil. %Moist 22304143910 MW-5R Hydrogen nM 3.4 1 NA 22304143911 MW-6 Hydrogen nM 3.2 1 NA 22304143912 MW-8 Hydrogen nM 2.4 1 NA Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 6 of 16 Report#: 223041439 Project ID: North Wake YD05007 Report Date: 05/O1/2023 Sample Results MW-9 Collect Date 04/04/2023 12:10 Lab ID 22304143901 Receive Date 04/14/2023 09:39 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 04/29/2310:23 764777 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 1.6J 1.2 5.0 mg/L 107-92-6 Butyric Acid 0.58U 0.58 5.0 mg/L 64-18-6 Formic Acid 54 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 0.53U 0.53 5.0 mg/L 127-17-3 Pyruvic Acid 0.60U 0.60 5.0 mg/L MW-36 Collect Date 04/04/2023 12:45 Lab ID 22304143902 Receive Date 04/14/2023 09:39 Matrix Water G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/29/2311:15 764777 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 0.42J 0.12 0.50 mg/L 107-92-6 Butyric Acid 0.058U 0.058 0.50 mg/L 64-18-6 Formic Acid 6.5 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 0.181 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.053U 0.053 0.50 mg/L 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L Collect Date 04/04/2023 14:20 Lab ID 22304143903 MW�34 Receive Date 04/14/2023 09:39 Matrix Water G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/29/2312:06 764777 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 0.43J 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 0.058U 0.058 0.50 mg/L 646-07-1 i-Hexanoic Acid 0.056U 0.056 0.50 mg/L Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 7 of 16 ..-] Report#: 223041439 Project ID: North Wake YD05007 Report Date: 05/O1/2023 Sample Results MW-34 Collect Date 04/04/2023 14:20 Lab ID 22304143903 Receive Date 04/14/2023 09:39 Matrix Water G (Continued) Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/29/2312:06 764777 LHM NA CAS# Parameter Result DL LOQ Units 503-74-2 i-Pentanoic Acid 0.061 U 0.061 0.50 mg/L 50-21-5 Lactic Acid 0.053U 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.053U 0.053 0.50 mg/L 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L MW-34d Collect Date 04/04/2023 15:00 Lab ID 22304143904 Receive Date 04/14/2023 09:39 Matrix Water G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/29/2312:58 764777 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 0.40J 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 0.058U 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 0.053U 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.053U 0.053 0.50 mg/L 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L G Collect Date 04/04/2023 15:40 Lab ID 22304143905 MW-5fZ Receive Date 04/14/2023 09:39 Matrix Water G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/29/2313:49 764777 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 0.73 0.12 0.50 mg/L 107-92-6 Butyric Acid 0.058U 0.058 0.50 mg/L 64-18-6 Formic Acid 6.5 0.055 0.50 mg/L 142-62-1 Hexanoic Acid 0.071J 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 0.053U 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.053U 0.053 0.50 mg/L Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 8 of 16 --] Report#: 223041439 Project ID: North Wake YD05007 Report Date: 05/O1/2023 Sample Results MW-5R Collect Date 04/04/2023 15:40 Lab ID 22304143905 Receive Date 04/14/2023 09:39 Matrix Water AM23G (Continued) Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/29/2313:49 764777 LHM NA CAS# Parameter Result DL LOQ Units 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L MW-1 O Collect Date 04/05/2023 09:15 Lab ID 22304143906 Receive Date 04/14/2023 09:39 Matrix Water G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/29/2314:41 764777 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 0.47J 0.12 0.50 mg/L 107-92-6 Butyric Acid 0.058U 0.058 0.50 mg/L 64-18-6 Formic Acid 6.5 0.055 0.50 mg/L 142-62-1 Hexanoic Acid 0.22J 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 0.053U 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.064J 0.053 0.50 mg/L 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L Collect Date 04/05/2023 11:10 Lab ID 22304143907 MW-6 Receive Date 04/14/2023 09:39 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 04/29/2315:32 764777 LHM NA CAS# Parameter 64-19-7 Acetic Acid 107-92-6 Butyric Acid 64-18-6 Formic Acid 142-62-1 Hexanoic Acid 646-07-1 i-Hexanoic Acid 503-74-2 i-Pentanoic Acid 50-21-5 Lactic Acid 109-52-4 Pentanoic Acid 79-09-4 Propionic Acid 127-17-3 Pyruvic Acid Result DL LOQ Units 2.0,1 1.2 5.0 mg/L 0.58U 0.58 5.0 mg/L 61 0.55 5.0 mg/L 0.75J 0.58 5.0 mg/L 0.56U 0.56 5.0 mg/L 0.61 U 0.61 5.0 mg/L 0.53U 0.53 5.0 mg/L 0.56U 0.56 5.0 mg/L 0.53U 0.53 5.0 mg/L 0.60U 0.60 5.0 mg/L Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 9 of 16 Report#: 223041439 Project ID: North Wake YD05007 Report Date: 05/O1/2023 Sample Results MW-8 Collect Date 04/05/2023 12:42 Lab ID 22304143908 Receive Date 04/14/2023 09:39 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 04/29/2316:24 764777 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 1.7J 1.2 5.0 mg/L 107-92-6 Butyric Acid 0.58U 0.58 5.0 mg/L 64-18-6 Formic Acid 51 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 0.53U 0.53 5.0 mg/L 127-17-3 Pyruvic Acid 0.60U 0.60 5.0 mg/L MW-1 1 Collect Date 04/05/2023 16:45 Lab ID 22304143909 Receive Date 04/14/2023 09:39 Matrix Water G Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/29/2317:15 764777 LHM NA CAS# Parameter Result DL LOQ Units 64-19-7 Acetic Acid 0.46J 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 0.062J 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 0.053U 0.053 0.50 mg/L 109-52-4 Pentanoic Acid 0.056U 0.056 0.50 mg/L 79-09-4 Propionic Acid 0.059J 0.053 0.50 mg/L 127-17-3 Pyruvic Acid 0.060U 0.060 0.50 mg/L Collect Date 04/05/2023 11:52 Lab ID 22304143910 MW�GR Receive Date 04/14/2023 09:39 Matrix Bubble Strip GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/18/23 08:21 764048 LMB NA CAS# Parameter 1333-74-0 Hydrogen Result DL LOQ Units 3.4 0.49 1.9 nM Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 10 of 16 Report#: 223041439 Project ID: North Wake YD05007 Report Date: 05/01/2023 Sample Results MW-c Collect Date 04/05/2023 11:28 Lab ID 22304143911 v Receive Date 04/14/2023 09:39 Matrix Bubble Strip AM20GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/18/23 08:33 764048 LMB NA CAS# Parameter Result DL LOQ Units 1333-74-0 Hydrogen 3.2 0.49 1.9 nM MW-Q Collect Date 04/05/2023 12:42 Lab ID 22304143912 v Receive Date 04/14/2023 09:39 Matrix Bubble Strip AM20GAX Prep Date Prep Batch Prep Method Dilution Run Date Run Batch Analyst %Moisture NA NA NA 1 04/18/23 08:46 764048 LMB NA CAS# Parameter 1333-74-0 Hydrogen Result DL LOQ Units 2.4 0.49 1.9 nM Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 11 of 16 Report#: 223041439 Project ID: North Wake YD05007 General Chemistry QC Summary Report Date: 05/01/2023 Analytical Batch Client ID MB764777 LCS764777 LCSD764777 764777 Lab ID 2478030 2478031 2478032 Sample Type MB LCS LCSD Prep Date NA NA NA Analysis Date 04/29/23 07:48 04/29/23 08:40 04/29/23 09:32 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 2.0 100 70 - 130 2.0 2.1 103 3 20 Butyric Acid 107-92-6 0.058U 0.058 2.0 2.0 99 70 - 130 2.0 2.0 102 3 20 Formic Acid 64-18-6 0.055U 0.055 2.0 1.9 94 70 - 130 2.0 1.9 97 3 20 Hexanoic Acid 142-62-1 0.058U 0.058 2.0 1.9 94 70 - 130 2.0 2.1 104 11 20 i-Hexanoic Acid 646-07-1 0.056U 0.056 2.0 1.9 97 70 - 130 2.0 1.8 91 6 20 i-Pentanoic Acid 503-74-2 0.061 U 0.061 2.0 2.0 98 70 - 130 2.0 2.0 98 1 20 Lactic Acid 50-21-5 0.053U 0.053 2.0 2.1 104 70 - 130 2.0 2.1 107 3 20 Pentanoic Acid 109-52-4 0.056U 0.056 2.0 2.0 101 70 - 130 2.0 2.0 102 1 20 Propionic Acid 79-09-4 0.053U 0.053 2.0 2.0 100 70 - 130 2.0 2.0 102 2 20 Pyruvic Acid 127-17-3 0.060U 0.060 2.0 1.9 97 70 - 130 2.0 2.0 100 3 20 Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 12 of 16 Report#: 223041439 Project ID: North Wake YD05007 General Chromatography QC Summary Report Date: 05/01/2023 Analytical Batch Client ID MB764048 LCS764048 LCSD764048 764048 Lab ID 2473551 2473552 2473553 Sample Type MB LCS LCSD Prep Date NA NA NA Analysis Date 04/18/23 08:09 04/18/23 07:41 04/18/23 07:53 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 1 0.491 121 101 88 1 70 - 130 1 121 11 190 1 2 1 20 Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 13 of 16 Client ID: Shealy Enwrr - Pare Analytical Services South Carolina I) SDG: 223041439 Pace Analytical Services, a_LC. aeeAnalylcal Chain of custody 106 Vantage Point Drive PM' RWe Record West Columbia, South Carolina 29172 Telephone No. (803) 791-9700 Fax No. (803) 791-9111 www. acelabs.com Cflanl Report to Contact Telephone Ne.I E-mail Quote No. Pace Analytical Services -West Columbia Catherine S- Dover cathy.dover0pacelabs.com Address Sampler's Signature Analysis [Attach list it more space is needed] Page 106 Vantage Point Drive City State lip Code 1 of 2 X Lot >i Bar Code West Columbia I SC 129172 Printed Name (lab use only) Project Name North Wake Unlined Landfill-yd05007 Project Number P-o, No. No of Containers by 4, Matrix P Preservative Type a Sample ID I Description Collection Collection T a c e m M Y Y x (rOnlalnem ror each sampra may ba Combined on ona ana) ❑ate(S} Time ' c ry Q z 0 M ¢ UNl Remarks 1 Cooler I-D- [militaryj ¢ _ z aor LL 7 MW-9 4/4/2023 1210 G X 2 X YD05007.001 I MW-36 4/4/2023 1245 G X +1 2 X YD05007-002 d- MW-34 4/4/2023 1420 G X 2 X YI705007-003 MW-34d 4/4/2023 1500 G X 2 X YD05007-004 MW-5R 4/4/2023 1540 G X 2 X YD05007-005 J MW-10 4/5/2023 0915 G X 2 X YD05007-014 MW-6 4/5/2023 1110 G X 2 X YD05007-015 7 MW-8 4/5/2023 1242 G ]( 2 X YD05007-016 MW-11 4/5/2023 1645 G X 2 X YD05007-017 MW-5R 4/5/2023 1152 G X 1 X YD05007-032 Tom Around Time Required (Prier lab approval required for aa<peciled TAT) Sample Disposal Possible Hazard Identification (List any known hazards In the remarks) OC Requirements standard ❑ Rush (Please speay) 10 BUSINESS DAYS ❑Saturn to Client Disposal by Lab ❑ Non•Ha arduus ❑ Flammable ❑ Skin Imiani ❑ SIDS provided ❑ Unknown 1. Relinquished b t . � 2,02 Time 1. Received by + 7 L Date Time 2, Relinquished by ws ❑a T e r 2. Receiv ' by J ❑ to Time 3. Relinquished by Date Time 3. Received by Date Time 4. Relinquished by Dale 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 arran ements are made Received on Ice (Check) ❑ Y ❑ N ❑ Ice Pack ° C ❑ Y 1 ❑N Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 14 of 16 Analytical m Chain of Custody Record Pace Analytical Services -West Columbia Catherine S. Dover Client ID: Shealy Envn - Pace Analytical services South Carolina Pace Analytical Services, LLC. 5DG' 223041439 106 Vantage Point Drive PIN: R',i e West Columbia, South Carolina 29172 Telephone No. (803) 791-9700 Fax No. (803) 791-B11 z Address Sampler's Signature 106 Vantage Point Ddvo City Stale zip code West Columbia SC 29172 X Printed Name Project Name North Wake Unlined Landfill-YD05007 Project Number P.D- No. Matrix ro ;; Sample ID / Description Collection Collection c . (Containers for each sampla may be comtolned on one line) Date 8 { } Time o to o ! a (military) a K MW-6 4/5/2023 1128 G X 4 MW-8 1 4/5/2023 1242 1 G X a a a v o to X X more space urn Around Time Required (Prior lab approval required for expedited TAT) Sample Disposal Possibla Hazard Identification (List any laid.. hazards In the remarks) 0 Slandacd ❑ Rush (Please Specify) 10 business days ❑ Return to Client 0 Disposal by Lab ❑ Non•Hazarduus ❑ rlammable ❑ Swn rrrilanr ❑ SM pr idaa ❑ unknown Ralinqui d Time y � ] 1. Received by Dale Ra11 uishe ale / Time 2- Received b pate Relinquished by ale Time 3, Received Date Relinquished by Dale Time 4. Laboratory Received by Date Note: All samples are retained for four weeks from LAB USE ONLY Receipt Temp, receipt unless other arrangements are made I Received on Ice (Check) ❑ Y ❑ N ❑ Ice Pack (� of .ot #Bar Codi (lab use only) Remarks 1 Cooler I. D- YD05007-033 1` YD05007-034 , NCDEQ EQUIS Requirements Blank Y / ❑N Pace Gulf Coast Report#: 223041439 05/01/2023 12:52 Page 15 of 16 /.5navivfica' SAMPLE RECEIVING CHECKLIST IIIIII1 II3III SAMPLE DELIVERY GROUP 223041439 CHECKLIST YES NO Client PM RWe Transport Method Samples received with proper thermal preservation? *❑ ❑ Shealy Envir - Pace Analytical FEDDC Services South Carolina 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 284727 Henderson, Jacob R All containers received in good condition and within hold time? All sample labels and containers received match the chain of custody? 0 0 ❑ ❑ Line Item(s) Receive Date(s) 1 - LL VFA 04/14/23 2- Hydrogen Preservative added to any containers? ❑ *❑ If received, was headspace for VOC water containers < 6mm? *❑ ❑ Samples collected in containers provided by Pace Gulf Coast? ❑❑ COOLERS DISCREPANCIES LAB PRESERVATIONS Airbill Thermometer ID: E43 Temp °C None None 1663 3469 8190 0.4 NOTES Revision 1.6 Page 1 of 1 Pace Gulf Coast Report#: 223041439 05/01 /2023 12:52 Page 16 of 16 aceAnalytical Report of Analysis CDM Smith 5400 Glenwood Avenue Suite 400 Raleigh, NC 27612 Attention: Mathew Colone Project Name: North Wake Unlined Landfill Lot Number:YD05008 Date Completed:05/12/2023 05/14/2023 10:55 PM Approved and released by: Project Manager II: Cathy S. Dover =w�4 aecRFo���A16 TNI / AM Amflvue Acm^rmm Fvu rj (' 4eOfFAi� ACC R E OI TEO TESTINGL aORlTOAY 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 13 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: YD05008 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. Metals 6020B Dissolved metals sample YD05008-003 (MW-28d) was taken off hold per client. The method blank associated with batch 74283 had Antimony detected at a concentration that was above the DL but below the LOQ. All samples associated with this method blank that have detections for Antimony 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 whw.pacelabs.com Page 2 of 13 PACE ANALYTICAL SERVICES, LLC Sample Summary CDM Smith Lot Number: YD05008 Project Name: North Wake Unlined Landfill Project Number: Sample Number Sample ID Matrix Date Sampled Date Received 001 MW-36 Aqueous 04/04/20231245 04/05/2023 002 MW-23 Aqueous 04/04/20231140 04/05/2023 003 MW-28d Aqueous 04/05/20231440 04/06/2023 004 MW-28 Aqueous 04/05/20231515 04/06/2023 (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 13 ICP-MS Client:CDM Smith Laboratory ID:YD05008-003 Description: MW-28d Matrix: Aqueous Date Sampled:04/05/2023 1440 Project Name: North Wake Unlined Landfill Date Received:04/06/2023 Project Number: Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 3005A 6020B 1 05/10/2023 1830 BNW 05/04/2023 2035 74283 CAS Analytical Parameter Number Method Result Q LOQ DL Units Run Dissolved Antimony 7440-36-0 6020B 1.4 BJ 2.0 0.50 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 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 D = Dilution > 1 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 13 QC Summary Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) QC Data for Lot Number: YD05008 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Page 5 of 13 ICP-MS - MB Sample ID: YQ74283-001 Matrix: Aqueous Batch: 74283 Prep Method: 3005A Analytical Method: 6020B Prep Date: 05/04/2023 2035 Parameter Result Q Dil LOQ DL Units Analysis Date Dissolved Antimony 0.80 J 1 2.0 0.50 ug/L 05/10/2023 1656 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 6 of 13 QC Data for Lot Number: YD05008 ICP-MS - LCS Sample ID: YQ74283-002 Matrix: Aqueous Batch: 74283 Prep Method: 3005A Analytical Method: 6020B Prep Date: 05/04/2023 2035 Spike Amount Result %Rec Parameter (ug/L) (ug/L) Q Dil % Rec Limit Analysis Date Dissolved Antimony 100 110 1 105 80-120 05/10/2023 1703 LOQ = Limit of Quantitation DL = Detection Limit U = Not detected at or above the LOD 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 7 of 13 QC Data for Lot Number: YD05008 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 8 of 13 PACE ANALYTICAL SERVICES, LLC IN Y Q� i77 � v Y E � =2! E a LU $ d ¢� U !ll - C1 a G �o �o I x; 1rM:'-Jj'j IL x� s� 3 en w J d I r +� •v'* *1 +4 1 p L} y G � gg P c FILI nd L Pace Analytical Services, LLC (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 13 PACE ANALYTICAL SERVICES, LLC C W L �r r J- " 0 i 0 LO 0 s w� V 5 �'s�.�t'J � Y•.yl�i'dd� � I I U 5� rt M e 7ot PFPF 2y i� Ihlaf � bk �Ky ' I — - cn ri s.l =rI ` l ti EN s lf%. a v) lil Ff4 I f5 M m L'y x "h ''A N � r A 1z r� J 4 £ �I u� C 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 10 of 13 PACE ANALYTICAL SERVICES, LLC OC# Tito~: ENV-Fl1M-'NLUl,-028G v02_Samples 1le4eipt Checklist (SRq LfFectiva date: aj).J7022 Sample Receipt Checklist (SRC) Chemr. {'t MSnnllt f' t,lrrlustxctedb 'dpfe; KMZ j CK-"C9;=p23 7 OMS; of:eceiµl: Face C'liru' LIPS L'KJ rzdF4'f . 06M 7F'--231 IVIN01I. 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(Lf-:Pj is,^ro ) aA. j=, ac nrrlitlgly ht Snlgplc Lxreivulg-oiirh rod'nuu Ihiasulff 1e r °a�S34,) witL iakIL ]l]: c'oat><r�e:rrs� Qualsrax i0: 362a P'aecs Analytlra Sonfite.5, •1 r P3.g-2 1 OF Z Pace Analytical Services, LLC (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 13 E M z PACE ANALYTICAL SERVICES, LLC Al Lk L Of 11 A z 0 Sti Lw e% d %I- 42f F— x I kilp , 4, 4,11 k 4 J.0 0 * & 0 0 0 0 * a 0 0 0 * w 0 Pace Analytical Services, LLC (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 13 PACE ANALYTICAL SERVICES, LLC dC# Title: I-M-f-RM-MOL-02116 w02_5amp]es Reo�rpt Cher-klis# (5111.0 CfLectrJe Cate:812/2022 Sample Receipt Checklist (SRC:) C'Lianl: COM S-"'L Cuule-1' EL.St3e. L-LI 1) y, r1 re: xmr 104.9r7.013 L,ot #: YD3soeI�Ynv�ees Maausn£recelpT 1J01cc �f C2ll bkFt-JEx 001eJ: W-1'2 ellstody Seals 5-ellt 911tlle oao:e: ' es l❑ y/ Mai =. Ul;%'Wod - avLli a,-rc PMCut. wcrc the}' iU qSt :7Lld Lmbrvke:'1? Ii Strip ID; 22 LM C11LolinL-Q41-D: 22-2"9 Tested b;ra Ci�tial7(-r�11 f1er3 hu'e 11Pn! k recei ,t .+1 }e7'il'e[1 (C cw aced) ter,-perstllre upan ii` cipl. {}-Solid Simp�Ctlp 1D, NA 29 r3.4 a{+ 1.3 113 aC., 1.9 119 SC NA 1 `r ktha3: Wianlxrlture -B-ank AgpiwtPotde5 E. Gaul ID' _ IR Gulp Carrecrien Fmrinr 4 'C P.lrrhn,infccolne7` 1F w,!rlce Ice Facks[71 OE- lce L-M � Yes l To fi - }1'K;re 8L1 coolais Cecril�trlarrr hel, G.0 {'? Tflln-ua51'ra:ect hXul,� r.' Lldi- NP - + I%T wn.3 Neftifjed 1Y: 1111Ctlw f clusi t ; face-t,-:ELce (circle one). ype#Ni3 . y A d- h tf r =33jurrdil c ucjiiCn`s 15acki Ig d1 p atr2ched to diiE 1,1 miP v y c%�0 5- tb'ere propel: Custody'PcOCejuras (seli1 quisheo LMcci ed) follwy'' { V ' £E 15. Werc siri 1l-r YLl i HE Inrl cak 111C COC Gild all Saii-qp a CaLdaifle $? Y�c LJ NO j- %Vs-N Collection ii-ar & time lislai ou the COC #old all szaL le ti'onTRinem? y% '?'{y 'Iu F%- i)1d all C01VAllL1erlR1:e1111&rL31RL011 , 4Are, 7113e) ^p-[f W7111111C Clot? ti' £3 n 9- 'Were tees to be prr-orw--d 1lsted n11 the t•_'(Xr 1 . Did ail w Aspics orrivc in thx proper ccuta crs 1Or Ca:h tC%L Rnt "DY i11 PUCH3 i Mlaidrl (LiabKoka3k, Ills w. em-)? -- Y No 11. Was 8dequale. €-w*3e vahilla a1I�7°1ai}EeYthlee?Jl N 12. JMll 3=14IICdVjfiOk trrc �� �� 13C'nry,'•t'1k1C11Ckkf can_tb fersl .' [ay-n E]NU 1.i. Were Al,1+�3anM31cs containC]-�}, AC1CUIllItCd U7 (N7 ]1i31_5'Sn]gj(CYGCSLL) uYt's El',',, 41�1- 14. Were ��4+A. IN 15C All 1 � 17 17� galnple!S LS e� 4�4 Ale$ >"pei�5i7e' (W pr j.nLn i1L dkinRTCC) in M V Of tlu VOA VialB^. 'No 24A 15. Wem a11DR0iuurt11�1_Lutrirlit sa - xL�circd ntn pA of- 2'} Yes �Io1 INA 16. 'NcrL a`Il eym i& s:n,Lples l'txrncc] r;l i3 pH : 12 -mid sulfide wilt Aes 1E'cei%6cd a' ,i -H > 97 Y� s ❑a �, Trt 17, Wcrc #Wp IC21 c VJig+175.I . y ln: u4 $=S,1, M -s I.<V, -Lr rwakples fire of rosuhlal rF.lorilie? ©Yes ZL7 F-IATA. 1 Lq- ' riM lilt! ilLLatr 111X1VbC1' Ii-ircd r117 I r C MI7]'ICr hlbel? if yea- QuOfe + Samlrle pre4eF'ti"A[MRII {l+3tlst be C47npletdd toi' Ott} SRJ'Lil�a4s� illcalxoet,(y'pre�crl-eLL pr r,+iilk hcrllls�l�c.; E!nkp LL:(5) N" werle MCeikeCL incpii '�E.Ct1 TXE5M1A MA %WrFr a Lk-USI.Cd f1CC4I{11n_riy IL JLk SaRipLe 1�=rivi g--%ili 7rd,c) ri-cle one. H?.SCI�I, j'it '()T, li � NrC]H ILsu1G 5H r't' -- -- L, .Time of palescn-Arian rTA Irawr a thmi one pm?.5na6w h uaeded, please note La Use coixtwi2" bcloxv. NA T.-......J w.--'C icccivvd with Lyubb1CS>6 utuii 1 d1i Lakelm. :SaII41;3(-S) 'A w ni teceh-ed WWL TIC } 0.5 r33grl. %'19 LS n-p ) ind Iwere itiotd mz-ccrdia�Jy it sample rcccivir;LZ'Xith Si) J.UM tWAM1j;53tC (N42!5 03) }Vitll .L,jgVC JD; HA ColliaS1ent5; 0-k.lal Ll x ILl_ 5.6360 Race"AfbalyticalServsces, LLC F'�1g+? 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 13 of 13