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Home My WebLink About4103_Guilford_WhiteStreet_PhaseI_MSWLF_Oct22GW_FID1773319_20230217pENR USE ONLY ❑Paper Report ❑Electronic Data Email CD (data loaded: Yes / No) Doc/Event #: NC DENR I I Environmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to it are 'Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Instructions: Prepare one form for each individually monitored unit. Please type or print legibly. Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing condition, etc.). Attach 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 13B .1629 (4)(a)(i). Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): WSP USA, Inc. on behalf of City of Greensboro Field Operations Department Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: Brian, J. Eichlin E-mail: brian.eichlin@wsp.com Phone: (336) 852-4903 NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # (.0500 or. 1600) October 20-24, 2006) White Street Landfill - Phase 1 2503 White St, Greensboro, NC 27405 41-03 .1600 October 19 - 21, 2022 Environmental Status: (Check all that apply) ❑ Initial/Background Monitoring ❑X Detection Monitoring ❑ Assessment Monitoring ❑ Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells ❑ Groundwater monitoring data from private water supply wells ❑ Leachate monitoring data Surface water monitoring data ❑ Methane gas monitoring data Corrective action data (specify) Other(specify) Notification attached? No. No groundwater or surface water standards were exceeded. X Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 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. Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. Brian J. Eichlin, PE Senior Technical Principal (336) 852-4903 Title (Area Code) Telephone Number 2 l t 7 / 20? Z Affix NC Licensed/ Professional Geologist Seal nature I / Date WSP USA Inc., 5B Oak Branch Drive, Greensboro, NC 27407 Facility Representative Address F-0165 NC PE Firm License Number (if applicable effective May 1, 2009) Revised 6/2009 '��.•�,�N CAR0 1 CL 9� _ SEAL %' CITY OF GREENSBORO FIELD OPERATIONS DEPARTMENT SECOND SEMI-ANNUAL 2022 WATER QUALITY MONITORING REPORT WHITE STREET LANDFILL - PHASE I, PERMIT NO. 41-03 FEBRUARY 17, 2023 SUBMITTED BY: WSP USA, Inc. 5B Oak Branch Drive Greensboro, NC USA, 27407 DISTRIBUTION LIST Richard Lovett, PG, Environmental Compliance Support Manager, Field Operations, City of Greensboro, 401 Patton Avenue, Greensboro, NC 27406. 336-373-4188. Richard.Lovett@greensboro-nc.gov Michael Szychowic, Landfill Compliance Supervisor, Field Operations, City of Greensboro, 2503 White Street, Greensboro, NC 27405.336-254-8096. Michael.Szychowicz@greensboro-nc.gov Jackie Drummond, Department of Environmental Quality, Division of Waste Management - Solid Waste Section, 2090 US Highway 70, Swannanoa, NC 28778. 828-296-4706. Jaclynne.drummond@ncdenr.gov EXECUTIVE SUMMARY On behalf of the City of Greensboro, WSP USA Inc. (WSP), formerly Golder Associates NC, Inc. (Golder) is submitting the enclosed Water Quality Monitoring Report, which documents the results of the October 19 - 21, 20227 compliance monitoring event for Phase I facility at the White Street Landfill. Benzene was detected at quantifiable concentrations above the practical quantitation Limit PQL and NC 2L Standard in the sample from downgradient monitoring well I-1, as it has been during recent events and is consistent with historical concentrations. Vinyl chloride was detected at an estimated concentration below the PQL but above the NC 2L Standard in the sample from downgradient monitoring well I-3. The estimated concentration of vinyl chloride at I-3 during the October 2022 event is consistent with historical detections. No other NC Appendix I VOCs or any RCRA metals were detected at concentrations above the applicable groundwater standards. 1,4-Dioxane was detected at concentrations above the PQL and NC 2L Standard at downgradient wells I-1, I-2, I-3, and I-4 as it has been previously at similar concentrations; however, this parameter is not required by regulation or permit. No NC Appendix I constituents were reported above their respective applicable surface water standards during the October 2022 event. Based on these results, the City of Greensboro will continue groundwater monitoring at the Phase I landfill in accordance with the requirements outlined in NCSWMR 0.600 Rules. The next semi -annul monitoring event is tentatively scheduled for April 2023. wsp.com SIGNATURES PREPARED BY Andrew Wrenn Consultant/Environmental Scientist REVIEWED BY Brian J Eichlin, PE, RSM Senior Technical Principal Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase I Project No. GL19131339 City of Greensboro WSP Page iii TABLE OF CONTENTS 1 INTRODUCTION...................................................................1 1.1 Site Description and Background...............................................1 1.2 Compliance Monitoring History..................................................1 1.3 Hydrogeologic Setting .....................................................................2 2 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION.........................................................................3 2.1 Visual Inspection Program.............................................................3 2.2 Well Network and Groundwater Elevation Measurements.....................................................................................3 2.3 October 2022 Monitoring Event..................................................3 2.4 Laboratory Analysis Program......................................................4 3 LABORATORY AND FIELD QA/QC ..............................5 4 DATA EVALUATION..........................................................6 4.1 North Carolina Groundwater and Surface Water Quality StandardComparisons...................................................................6 5 SUMMARY.............................................................................7 6 REFERENCES.......................................................................8 TABLES.................................................................................................9 FIGURES.............................................................................................1 O Second Semi -Annual 2022 Water Quality Monitoring Report - White Street Landfill -Phase I WSP Project No. GL19131339 City of Greensboro Page v TABLES TABLE 1 SUMMARY OF HISTORICAL GROUNDWATER ELEVATION DATA TABLE 2 SUMMARY OF ESTIMATED HORIZONTAL FLOW VELOCITIES TABLE 3 SUMMARY OF WELL CONSTRUCTION INFORMATION TABLE 4 SUMMARY OF GROUNDWATER MONITORING RESULTS, DETECTED CONSTITUENTS TABLE 5 SUMMARY OF GROUNDWATER FIELDD PARAMETERS TABLE 6 SUMMARY OF SURFACE WATER MONITORING RESULTS, DETECTED CONSTITUENTS TABLE 7 SUMMARY OF SURFACE WATER FIELDD PARAMETERS FIGURES FIGURE 1: GROUNDWATER SURFACE CONTOUR MAP, OCTOBER 2022 FIGURE 2: SURFACE WATER LOCATION MAP A ODFND/CES A GROUNDWATER AND SURFACE WATER SAMPLING LOGS B OCTOBER 2022 CERTIFICATE -OF -ANALYSIS, CHAIN -OF - CUSTODY FORMS, AND LABORATORY DATA REVIEWS WSP Second Semi -Annual 2022 Water Quality Monitoring Report -White Street Landfill -Phase I Project No. GL19131339 Page vi City of Greensboro I INTRODUCTION This report summarizes the monitoring results from the October 19 - 21, 2022 groundwater and surface water sampling at Phase I of the White Street Landfill in Greensboro, North Carolina (NC). The closed municipal solid waste (MSW) landfill facility is monitored in accordance with Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 13B. Section 0.600. The facility is located in central Guilford County and is comprised of a closed, unlined MSW facility (Phase I), an active unlined construction and demolition debris (C&D) over MSW facility (Phase II), an active Subtitle D MSW facility (Phase III), and an active Type I compost facility. The facility is owned and operated by the City of Greensboro under Permit Nos. 41-03 and 41-12 issued by the NC Department of Environmental Quality (DEQ, formerly NC Department of Natural Resources). The northeastern portion of the landfill property is comprised of the Phase I and Phase II landfills, which are covered under Permit No. 41-03. The southwestern portion of the facility is comprised of the Phase III, which is covered under permit No. 41-12. The water quality monitoring results for the Phase II and Phase II facilities are submitted under separate covers. 1.1 SITE DESCRIPTION AND BACKGROUND The location of the facility is shown on the inlay on Figure 1. The White Street Landfill is located approximately 5 miles northeast of downtown Greensboro, NC in Guilford County. Part of the James River watershed, North Buffalo Creek flows from southwest to northeast along the northwestern border of the facility and then flows eastward, away from the facility near the northeastern end of the facility. The location of this surface water feature and its associated tributaries are shown on the inlay on Figure 1. As shown on Figure 1, topographic surface elevations at the facility range from approximately 700 feet above mean sea level (AMSL) to nearly 850 feet AMSL. The site is surrounded by wooded and agricultural properties to the northwest, residential properties to the south and southwest, and residential and wooded properties to the east. 1.2 COMPLIANCE MONITORING HISTORY Groundwater monitoring at the facility was initiated in 1994. The facility's approved monitoring network for the Phase I landfill is currently comprised of five groundwater monitoring wells, which monitor the uppermost aquifer beneath the facility. Monitoring well MW-13 is an upgradient background well for both the Phase I and the Phase II landfills. Monitoring wells I-1, I-2, I-3, and I-4 are downgradient compliance wells for the Phase I landfill. The monitoring well locations are shown on Figure 1. The monitoring parameters for Phase I groundwater samples are NC Appendix I volatile organic constituents (VOCs) and the eight Resource Conservation and Recovery Act (RCRA) metals; samples are collected semi-annually. The constituent 1,4-dioxane was also analyzed during this event per the May 29, 2018 NC DEQ memorandum. The facility's monitoring network also includes five surface water monitoring points, which are shared with the Phase II waste unit. Surface water monitoring points SW-1, SW-2, and SW-3 are upstream monitoring locations and SW-4 and SW-5 are downstream monitoring locations. Surface water monitoring point SW-1 is located along North Buffalo Creek, west of the facility, along Summit Avenue. Surface water point SW-2 is located west of the facility and collected from a tributary to North Buffalo Creek that flows from south to north. Surface water point SW-3 is located west of the facility, downstream of SW-1 and upstream of the confluence of North Buffalo Creek and the tributary from which SW-2 is sampled. Surface water point SW-4 is located downstream of the facility along North Buffalo Creek. Surface water point SW-5 is located within the facility's property, at the northern end of the Phase II landfill off Rankin Mill Road. The locations of the surface water points are shown on Figure 2. Points SW-1, SW-2, SW-3, and SW-4 are also shared with the Phase III landfill's monitoring network. Surface water samples are analyzed for NC Appendix I list of constituents semi-annually. Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase I Project No. GL19131339 City of Greensboro WSP Pagel 1.3 HYDROGEOLOGIC SETTING The White Street Landfill is located within the Carolina Slate Belt of the Piedmont Physiographic Province of NC (NCGS, 1985). Generally, the Carolina Slate Belt consists of Late Proterozoic to Cambrian volcanic and greenschist-facies, metasedimentary rocks intruded by plutonic suites (Butler and Secor,1991). The site geology is characterized by a regional -scale felsic intrusive complex, which consists mainly of white to gray, fine- to coarse -grained, massive to foliated metamorphosed granitic rock and is also characterized by regional and small-scale Mesozoic diabase dikes. The uppermost groundwater beneath the facility is presented in a shallow, unconfined aquifer comprised on saprolite and partially weathered rock (PWR). Groundwater occurs at depths of approximately 1 to 20 feet below ground surface. Depth to water measurements, obtained on October 19, 2022, are summarized in Table 1 and were used to prepare a groundwater surface contour map presented on Figure 1. As presented, the groundwater flow in the uppermost aquifer beneath the site is generally to the northwest toward North Buffalo Creek, which is located along the northwestern property boundary of the site. The groundwater surface contour map and interpreted flow directions are generally consistent with previously submitted groundwater contour maps and flow directions for this facility. Based on the October 2022 groundwater surface contour map, the hydraulic gradient in the shallow aquifer that underlies the site, as measured along the conceptual flow paths shown on the contour map, was calculated to average 0.02 feet/foot. Groundwater velocities were calculated using a hydraulic conductivity of 2.61 X 10-4 centimeters per second (cm/s), which is the average of the hydraulic conductivity calculated for the hydrogeologic units present at the facilities Phase II and Phase III landfills. This average is based on slug test data by BPA Environmental & Engineering Inc. (Phase II) and G.N. Richardson & Associates (Phase III). Although no data is available for the Phase I landfill, it is assumed that the whole facility either share hydrogeologic units or have similar characteristics (S&MW, 2017). The estimated effective porosity of the shallow aquifer is expected to range from 0.20 (saprolite) to 0.09 (fractured rock). The effective porosity of saprolite was used in calculations to provide a conservative estimate of groundwater flow. Using the above values, the estimated rate of groundwater flow from the uppermost aquifer beneath the facility was calculated using the following modified Darcy equation: VgW = Ki/ne where Vim,,, = average linear velocity (feet/year), K = hydraulic conductivity (feet/year), i = horizontal hydraulic gradient, and ne = effective porosity. The average estimated linear groundwater flow velocity under the waste management unit is approximately 233 ft/year towards the northwest, which is generally consistent with previous estimates (Table 2). The linear velocity equation above makes the simplified assumption of a homogeneous and isotropic aquifer. Therefore, this equation represents a likely average value for the uppermost aquifer and does not account for heterogeneous and/or anisotropic conditions that may be present in the uppermost aquifer at the facility. WSP Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase I Project No. GL19131339 Page 2 City of Greensboro 2 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION Field activities conducted as part of the October 2022 sampling events are discussed in the following sections. 2.1 VISUAL INSPECTION PROGRAM In order to detect a potential release at the earliest possible time, the visual inspection program is used at the Phase I landfill by the sampling personnel. The program includes physical indicators such as potential water table mounding beneath the waste management unit, physical examination of any stresses in biological communities, visible signs of leachate migration (i.e., leachate seeps), unexplained changes in soil characteristics, an any other change to the environment due to the waste management unit. During this compliance monitoring event, no physical indicators of a potential release were observed in the vicinity of the waste management areas by the sampling personnel. 2.2 WELL NETWORK AND GROUNDWATER ELEVATION MEASUREMENTS The current network of groundwater monitoring wells at the Phase I landfill consists of one upgradient well (MW-13) and four downgradient wells (I-1, I-2, I-3, and I-4). Available monitoring well construction information for the Phase I monitoring wells is summarized on Table 3, and the well locations are shown on Figure 1. The well locations were selected to yield groundwater samples representative of the conditions in the uppermost aquifer underlying the facility, and to monitor for potential releases from the landfill unit. Three upstream surface water monitoring points (SW-1, SW-2, and SW-3) and two downstream surface water monitoring points (SW-4 and SW-5) are also monitored Depth -to -water measurements are recorded to the nearest 0.01 foot prior to initiating groundwater purging and sampling activities. The respective groundwater level elevations for this event are presented in Table 1. The historical water level data are also shown on this table. As presented, recent groundwater elevation data for the monitoring well network indicate that the hydraulic head level in the uppermost aquifer beneath the facility is fairly consistent, with temporal variation from the long-term average limited to approximately 5 - 20 feet (plus or minus) under normal conditions. 2.3 OCTOBER 2022 MONITORING EVENT Personnel from Golder visited the facility from October 19 — 21, 2022, to purge and sample monitoring wells and to sample surface water monitoring points. Monitoring wells were purged and sampled using the dedicated pumps at the facility following low -flow micropurge procedures. Measurements of temperature, pH, specific conductivity, turbidity, dissolved oxygen, and oxidation reduction potential were recorded at approximately 5-minute intervals. The interval is determined by the purge rate. In general, the purge rate for each well was matched to the yield of the monitoring well, as determined by continuous monitoring the depth to water, up to a maximum purge rate of approximately 300 milliliters per minute. Purging was continued until stabilization was indicated by the water quality parameters. Prior to sampling, the laboratory -supplied sample containers were prepared. Each sample container was labeled with the specific identification number, sampling personnel, date and time of sample collection, project name and number, and requested chemical analyses. Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase Project No. GL19131339 City of Greensboro WSP Page 3 The required groundwater samples were collected directly from the dedicated bladder pump's discharge lines into the labeled, laboratory -supplied, pre -preserved sample containers after stabilization was completed based on the monitored water quality parameters. After collection, the samples were placed in a cooler on ice, under chain -of -custody control. Copies of the sampling logs are presented in Appendix A. Included in each log is a description of the sampling equipment, sampling method and location, field observations, and water quality measurements. The surface water samples were collected directly from the stream, by lowering the sample containers into the stream flow with the opening facing away from the current flow, taking care to prevent overflow of the sample containers and to minimize sample -induced turbidity. Measurements of temperature, pH, specific conductivity, turbidity, dissolved oxygen, and oxidation reduction potential were measured directly from the stream and recorded during the collection of the surface water samples. After collection, the surface water samples were placed in a cooler on ice, under chain -of -custody control. Copies of the sampling logs are presented in Appendix A. Included in each log is a description of the sampling equipment, sampling location, sampling method, field observations, and water quality measurements. 2.4 LABORATORY ANALYSIS PROGRAM The October 2022 groundwater and surface water samples were submitted to Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC, which was recently acquired by Eurofins Scientific, under chain -of -custody control for analysis. Groundwater samples were analyzed for NC Appendix I VOCs, RCRA metals, and 1,4-dioxane. The Phase I and Phase II landfills share background monitoring well MW-13 and therefore, MW-13 was analyzed for Appendix I inorganics and VOCs plus mercury and 1,4-dioxane. Surface water samples were analyzed for NC Appendix I constituents and 1,4- Dioxane. The samples were received at the laboratory in good condition and were properly preserved. WSP Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase I Project No. GL19131339 Page 4 City of Greensboro 3 LABORATORY AND FIELD QA/QC A laboratory -prepared trip blank accompanied the volatile sample containers to and from the laboratory. ENCO analyzed the trip blank for NC Appendix I VOCs. A field blank was also collected for the Phase III landfill and was compared to the surface water samples, which are shared between the Phase I, Phase II, and Phase III landfills. Reviews of the laboratory data were performed by Golder personnel and are included in Appendix B. A duplicate sample was collected at Phase II monitoring well II-713 by Golder personnel as part of the October 2022 sampling event for laboratory QA/QC. ENCO/Eurofins analyzed the duplicate sample for the NC Appendix II list of constituents. The constituents detected in the duplicate sample were consistent with those detected in the primary sample and do not identify any regularities related to laboratory analyses. Nickel and zinc were detected in the laboratory method blank (MB 680-747010/) associated with primary samples from well MW-13 and surface water sample SW-5. Based on this detection, the estimated concentration of zinc detected at surface water sample SW-5 has been blank qualified. Nickel was not detected in the primary samples and therefore, no data qualification was required as a result of that detection. No irregularities were identified during review of the analytical reports for the other samples (i.e., monitoring wells and surface waters). Analytical results for the field blank collected from the Phase III landfill revealed no detections of RCRA metals or NC Appendix I constituents. There were no detections of NC Appendix I constituents in the trip blank (Trip Blank I) associated with these samples. The laboratory did not initially analyze for mercury at well MW-13. This omission was noted by Golder during the data review process. As mercury has not previously been detected at well MW-13, Golder requested that the laboratory analyze the sample out of hold. Result of the mercury analysis for MW-13 for the October 2022 out of hold sample was also non - detect. The omission of mercury and analysis of the sample out of hold was discussed with the NC DEQ project manager who confirmed that this was acceptable and resampling is not necessary. Sulfide was analyzed out of hold by the laboratory for MW-13. The sample was collected on October 18 and was received by ENCO on October 20. The sample was then sent to Eurofins laboratory in Savanna but was not received until October 25. The hold time for sulfide is 7-days. Sulfide (1,300 ug/L) was detected in the sample collected from well MW-13 but has historically been non -detect. There is no established groundwater standard for sulfide. Since sulfide is not a compliance parameter, no additional action is required. Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase I Project No. GL19131339 City of Greensboro WSP Page 5 4 DATA EVALUATION The results of the data evaluations are presented in the following sections. 4.1 NORTH CAROLINA GROUNDWATER AND SURFACE WATER QUALITY STANDARD COMPARISONS Benzene was detected at a quantifiable concentration above the PQL and NC 2L Standard in the sample collected from downgradient monitoring well I-1. The benzene concentration reported during the October 2022 monitoring event is consistent with historical concentrations for monitoring well I-1. 1,4-Dichlorobenzene was also detected in monitoring well I-1 at a quantifiable concentration above the PQL. The detection was consistent with historical concentrations and was at the NC 2L Standard. Vinyl chloride was detected at an estimated concentration below the PQL but above the NC 2L Standard in the sample from downgradient monitoring well I-3. The detection of vinyl chloride a I-3 during the October 2022 event is consistent with historical concentrations. No other NC Appendix I VOCs or any RCRA metals were detected at concentrations above the applicable groundwater standards. 1,4-Dioxane was detected at concentrations above the PQL and NC 2L Standard at downgradient wells I-1, I-2, I-3, and I-4 as it has been previously at similar concentrations; however, this parameter is not required by regulation or permit. As shown in Table 6, no NC Appendix I constituents were reported above their respective applicable surface water standards during the October 2022 event. WSP Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase I Project No. GL19131339 Page 6 City of Greensboro 5 SUMMARY Based on the results summarized herein, the City of Greensboro will continue monitoring the upper most aquifer beneath the facility in accordance with the requirements outlined in NCSWMR 0.600. The next sampling event should occur in April 2023. Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase Project No. GL19131339 City of Greensboro WSP Page 7 6 REFERENCES Butler, J. Robert and Secor, Donald T., Jr., 1991, The Central Piedmont, in Horton, J. W., Jr., and Zullo, V.A., eds., The Geology of the Carolinas: The University of Tennessee Press, p. 59 78. NCGS (North Carolina Geologic Survey),1985, Geologic Map of North Carolina. S&ME, Greensboro, NC, January 2017, White Street Landfill - Phase I, Permit No. 41-03, Post -Closure Monitoring, September 2016. WSP Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase I Project No. GL19131339 Page 8 City of Greensboro TABLES Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase Project No. GL19131339 City of Greensboro WSP Page 9 February 2023 19131339.106 TABLE 1 Summary of Historical Groundwater Elevation Data White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Well IDs MW-13 1-1 1-2 1-3 1-4 TOC Elevation 741.24 713.75 703.09 707.43 694.94 (ft AMSL) Date Elev DTW Elev DTW Elev DTW Elev DTW Elev DTW 10/14/98 718.61 22.69 765.90 10.21 763.28 5.30 750.43 14.22 753.76 6.07 03/25/99 722.11 19.19 759.43 16.68 748.54 20.04 749.06 15.59 750.97 8.86 09/22/99 721.32 19.98 767.74 8.37 752.25 16.33 752.13 12.52 757.61 2.22 03/27/00 722.49 18.81 769.13 6.98 764.37 4.21 752.90 11.75 757.61 2.22 09/13/00 722.37 18.93 767.81 8.30 763.98 4.60 752.22 12.43 757.53 2.30 03/12/01 721.80 19.50 768.57 7.54 763.87 4.71 752.61 12.04 757.61 2.22 09/13/01 720.98 20.32 766.28 9.83 763.65 4.93 751.12 13.53 755.74 4.09 03/07/02 719.08 22.22 767.92 8.19 763.73 4.85 752.40 12.25 757.66 2.17 09/18/02 722.10 19.20 766.67 9.44 763.54 5.04 751.49 13.16 757.69 2.14 04/15/03 724.59 16.71 769.48 6.63 764.20 4.38 753.62 11.03 757.97 1.86 10/15/03 722.82 18.48 767.97 8.14 764.12 4.46 752.22 12.43 757.89 1.94 03/24/04 722.42 18.88 768.55 7.56 763.94 4.64 752.10 12.55 757.70 2.13 09/22/14 722.56 18.74 767.47 8.64 763.80 4.78 751.90 12.75 757.84 1.99 05/10/05 722.14 19.16 766.30 9.81 763.73 4.85 754.89 9.76 757.60 2.23 10/11/05 719.72 21.58 765.57 10.54 763.53 5.05 750.66 13.99 754.33 5.50 04/24/06 720.25 21.05 767.17 8.94 763.92 4.66 751.62 13.03 757.34 2.49 10/20/06 721.69 19.61 766.28 9.83 763.42 5.16 750.83 13.82 756.23 3.60 04/10/07 721.61 19.63 705.35 8.40 698.20 4.89 694.67 12.76 692.55 2.39 09/25/07 717.41 23.83 702.67 11.08 696.89 6.20 691.35 16.08 686.94 8.00 05/02/08 722.96 18.28 707.14 6.61 698.49 4.60 695.80 11.63 692.74 2.20 12/05/08 -- -- 704.22 9.53 698.08 5.01 693.82 13.61 692.36 2.58 04/16/09 722.87 18.37 707.47 6.28 698.43 4.66 695.67 11.76 693.33 1.61 10/07/09 721.70 19.54 703.57 10.18 697.81 5.28 692.93 14.50 689.81 5.13 04/28/10 -- -- 705.36 8.39 698.32 4.77 694.41 13.02 692.80 2.14 10/05/10 721.13 20.11 705.09 8.66 697.84 5.25 693.48 13.95 692.31 2.63 05/10/11 722.33 18.91 706.23 7.52 697.43 5.66 695.15 12.28 693.03 1.91 10/06/11 719.26 21.98 703.25 10.50 697.68 5.41 693.29 14.14 691.55 3.39 04/16/12 721.34 19.90 704.67 9.08 698.39 4.70 694.54 12.89 693.08 1.86 10/24/12 719.13 22.11 703.55 10.20 697.84 5.25 693.11 14.32 692.19 2.75 04/24/13 721.96 19.28 706.10 7.65 698.28 4.81 694.43 13.00 692.94 2.00 09/09/13 721.66 19.58 705.21 8.54 697.94 5.15 693.29 14.14 691.85 3.09 04/22/14 723.00 18.24 707.24 6.51 698.81 4.28 695.49 11.94 693.22 1.72 10/01 /14 717.90 23.34 701.58 12.17 696.98 6.11 690.96 16.47 687.74 7.20 04/07/15 720.64 20.60 705.92 7.83 698.06 5.03 694.42 13.01 692.93 2.01 10/06/15 723.23 18.01 705.30 8.45 697.88 5.21 693.42 14.01 692.37 2.57 04/18/16 721.94 19.30 706.34 7.41 698.54 4.55 694.36 13.07 692.79 2.15 09/26/16 721.03 20.21 702.87 10.88 697.68 5.41 691.94 15.49 689.87 5.07 04/25/17 722.07 19.17 707.28 6.47 698.95 4.14 696.82 10.61 693.62 1.32 10/16/17 720.11 21.13 704.53 9.22 697.64 5.45 692.16 15.27 690.25 4.69 04/16/18 722.80 18.44 707.47 6.28 698.88 4.21 695.81 11.62 693.48 1.46 10/16/18 723.22 18.02 704.43 9.32 695.58 7.51 695.64 11.79 692.40 2.54 04/08/19 723.66 17.58 705.26 8.49 696.24 6.85 695.31 12.12 692.07 2.87 10/07/19 720.82 20.42 701.29 12.46 694.92 8.17 691.89 15.54 689.95 4.99 04/20/20 722.86 18.38 704.35 9.40 696.55 6.54 694.90 12.53 692.04 2.90 10/13/20 724.25 16.99 705.19 8.56 696.99 6.10 695.84 11.59 691.99 2.95 04/27/21 723.49 17.75 704.90 8.85 698.99 4.10 694.47 12.96 691.85 3.09 10/12/21 722.58 18.66 703.80 9.95 698.46 4.63 693.48 13.95 691.54 3.40 04/19/22 723.91 17.33 705.18 8.57 698.39 4.70 696.01 11.42 691.92 3.02 10/19/22 720.81 20.43 701.53 12.22 698.06 5.03 692.63 14.80 688.75 6.19 MEAN 721.69 19.57 726.90 8.94 720.60 5.68 714.61 13.09 714.80 3.12 MAXIMUM 724.59 23.83 769.48 16.68 764.37 20.04 754.89 16.47 757.97 8.86 MINIMUM 717.41 16.71 701.29 6.28 694.92 4.10 690.96 9.76 686.94 1.32 Notes: 1. ft AMSL = feet above mean sea level. 2. -- = not measured or no data 3. TOC = top of casing 4. NI = not installed 5. MW = monitoring well 6. TOC 7. Well TOC survey conducted 2013-2014 by S&ME, Inc. for more accurate elevations. February 2023 TABLE 2 Summary of Estimated Horizontal Flow Velocities White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 October 2022 Gradient Gradient Gradient Horizontal Effective Hydraulic Calculation Flow Segment Length Segment Gradient Porosity Conductivity Velocity Direction Elevations (VgW, feet/year) Segment (feet) (i, feet) (ne) (K, cm/sec) feet i Northwest 1802 ---------690-------- 0.0166 0.02 2.61 E-04 225 /2 North -Northwest 1673 --------620-------- 0.0179 0.02 2.61 E-04 242 Average i Average VFW 0.0173 233 Notes: 1. Horizontal velocities based on the modified Darcy equation VgW = Ki/ne. 2. Values for K were based on the geometric mean of slug test values from all site monitoring wells. 3. The effective porosity for saprolite was used in velocity calculations. 4. cm/sec = centimeters per second February 2023 TABLE 3 Summary of Well Construction Information White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Top -of - Monitoring Well Casing Well Well Screened Interval Geology of Screened Well Identification Northing Easting Date of Construction Elevation Depth Diameter (ft bgs) Interval Status (feet) (inches) (ft AMSL) 1-1 859779.0057 1785681.4037 07/14/89 713.75 24 2 14 24 PWR Active 1-2 860676.2436 1785350.8942 07/14/89 703.09 24 2 14 24 Sandy Silt Active 1-3 861283.9207 1785321.4743 07/14/89 707.43 24 2 14 24 Sandy Silt Active 1-4 861952.8335 1786141.9027 07/14/89 694.94 15 2 5 15 Sandy Silt Active MW-13 858763.9106 1783188.5206 07/14/89 741.24 34 2 19 34 Sandy Silt Active Notes: 1. ft AMSL= feet above mean sea level 2. ft bgs = feet below ground surface 3. MW = monitoring well 4. PWR = partially weathered rock 5. Unless otherwise noted, well construction survey information, Water Quality Monitoring Reports and Water Quality Monitoring Plans provided by Survey Solutions S&ME. erti1 1o,. February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Method Practical SWS Upgradient Well Downgradient Wells Detected Monitoring Reporting Sample Detection Quantitation Reporting Blanks Constituent/Parameter Units Date Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 Arsenic ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND NC 2L = 10 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND EPA MCL = 10 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/02/08 2.0 -- 10 2.4 J ND ND ND ND ND ug/L 12/05/08 2.8 -- 10 ND ND ND ND ND ND ug/L 04/16/09 2.8 -- 10 ND 3.3 J ND 3.3 J 4.7 J ND ug/L 10/07/09 2.8 -- 10 ND ND ND ND 3.38 J ND ug/L 04/28/10 2.8 -- 10 ND ND ND ND ND ND ug/L 10/11/10 2.8 -- 10 ND ND 3.38 B ND 9.10 B -- ug/L 05/10/11 2.8 -- 10 ND 5.68 J 4.72 J ND ND ND ug/L 10/06/11 2.8 -- 10 ND ND ND ND ND ND ug/L 04/16/12 2.8 -- 10 ND 4.23 J ND ND ND ND ug/L 10/24/12 2.8 -- 10 3.75 J 4.25 J ND ND 5.15 J ND ug/L 04/24/13 2.8 -- 10 ND ND ND ND ND ND ug/L 09/10/13 5.4 -- 10 ND ND ND ND ND ND ug/L 04/22/14 5.4 -- 10 ND 7.71 J ND ND ND ND ug/L 10/06/14 5.4 -- 10 ND ND ND ND ND ND ug/L 04/07/15 6.8 -- 10 ND ND ND ND ND ND ug/L 10/07/15 6.8 -- 10 ND ND ND ND ND ND ug/L 04/26/16 6.8 -- 10 ND ND ND ND ND ND ug/L 09/28/16 6.8 -- 10 ND 7.07 J 9.93 J ND ND ND ug/L 04/27/17 6.8 -- 10 ND ND ND ND ND ND ug/L 10/17/17 6.8 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.8 -- 10 ND ND ND ND ND ND ug/L 10/18/18 7.6 10 -- ND ND ND ND ND ND ug/L 04/08/19 7.6 10 -- ND ND ND ND ND ND ug/L 10/09/19 7.6 10 -- ND ND ND ND ND ND ug/L 04/20/20 7.6 10 -- ND ND ND ND ND ND ug/L 10/13/20 7.6 10 -- ND ND ND ND ND ND ug/L 04/29/21 7.6 10 -- ND ND ND ND ND ND ug/L 10/12/21 7.6 10 -- ND ND ND ND ND ND ug/L 04/21/22 7.6 10 -- ND ND ND ND ND ND ug/L 10/19/22 6.4 20 -- ND ND ND ND ND ND Barium ug/L 03/01/00 -- -- 500 ND ND 690 ND 910 ND NC 2L = 700 ug/L ug/L 09/01/00 -- -- 500 ND ND ND ND 800 ND EPA MCL = 2000 ug/L ug/L 03/01/01 -- -- 500 ND ND ND ND 900 ND ug/L 09/01/01 -- -- 500 ND ND ND ND 990 ND ug/L 03/01/02 -- -- 500 ND ND ND ND 1300 ND ug/L 09/01/02 -- -- 500 ND ND ND ND 540 ND ug/L 04/01/03 -- -- 500 ND ND ND ND 780 ND ug/L 10/01/03 -- -- 500 ND ND 650 ND 580 ND ug/L 03/01/04 -- -- 500 ND ND ND ND ND ND ug/L 09/01/04 -- -- 500 ND ND 730 ND ND ND ug/L 05/01/05 -- -- 500 ND ND ND ND 730 ND ug/L 10/01/05 -- -- 500 ND ND 550 ND 870 ND ug/L 04/01/06 -- -- 500 ND ND 575 ND 744 ND ug/L 10/01/06 -- -- 500 ND ND 514 ND 930 ND ug/L 04/10/07 -- -- -- 120 173 580 144 624 ND ug/L 09/25/07 -- -- -- 130 153 497 125 480 ND ug/L 05/02/08 0.2 -- 100 -- 371 634 128 964 ND ug/L 12/05/08 1.0 -- 100 127 1.1 375 180 812 ND ug/L 04/16/09 4.2 -- 100 -- 580 506 117 693 ND ug/L 10/07/09 1.0 -- 100 119 230 B 517 B 190 B 556 B -- ug/L 04/28/10 1.0 -- 100 112 304 489 112 508 ND ug/L 10/11/10 1.0 -- 100 -- 198 507 135 456 ND ug/L 05/10/11 1.0 -- 100 108 639 347 160 906 ND ug/L 10/06/11 1.0 -- 100 115 389 307 170 651 ND ug/L 04/16/12 1.0 -- 100 112 664 528 153 677 ND ug/L 10/24/12 1.0 -- 100 104 631 358 163 696 ND ug/L 04/24/13 1.0 -- 100 120 683 286 149 635 ND ug/L 09/10/13 1.0 -- 100 85.9 J 590 426 146 585 ND ug/L 04/22/14 1.0 -- 100 98.7 J 732 483 128 585 ND ug/L 10/06/14 1.0 -- 100 88.3 J 585 524 136 537 ND ug/L 04/07/15 1.0 -- 100 105 792 598 156 596 ND ug/L 10/07/15 1.0 -- 100 93.3 J 484 576 151 376 ND ug/L 04/26/16 1.0 -- 100 91.3 J 672 513 135 699 ND ug/L 09/28/16 1.0 -- 100 85.1 J 623 532 135 628 ND ug/L 04/27/17 1.0 -- 100 96.6 J 693 291 131 554 ND ug/L 10/17/17 1.0 -- 100 94.1 J 665 465 148 669 ND ug/L 04/16/18 1.0 -- 100 82.7 J 705 512 131 751 ND ug/L 10/18/18 1.1 10 -- 94.5 660 499 136 546 ND ug/L 04/08/19 1.1 10 -- 95.9 724 233 71 599 ND ug/L 10/09/19 1.1 10 -- 89.0 648 444 135 795 ND ug/L 04/20/20 1.1 10 -- 98.9 652 236 69.5 672 ND ug/L 10/13/20 1.1 10 -- 112 659 448 112 710 ND ug/L 04/29/21 1.1 10 -- 88.6 657 486 45.5 748 ND ug/L 10/12/21 1.1 10 -- 89.8 672 530 142 828 ND ug/L 04/21/22 1.1 10 -- 97.9 538 455 71.6 754 ND ug/L 10/19/22 4.4 10 -- 82 600 500 140 680 ND 1 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Method Practical SWS Upgradient Well Downgradient Wells Detected Monitoring Reporting Sample Detection Quantitation Reporting Blanks Constituent/Parameter Units Date Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 Cadmium ug/L 03/01/00 -- -- 1 ND ND 7.00 ND 4.0 ND NC 2L = 2 ug/L ug/L 09/01/00 -- -- 1 ND ND 11 ND 5.0 ND EPA MCL = 5 ug/L ug/L 03/01/01 -- -- 1 ND ND 3.4 ND 8.0 ND ug/L 09/01/01 -- -- 1 ND ND 5.0 1.6 5.5 ND ug/L 03/01/02 -- -- 1 ND 1.0 5.5 1.4 7.5 ND ug/L 09/01/02 -- -- 1 ND ND 5.5 ND 1.8 ND ug/L 04/01/03 -- -- 1 ND ND ND ND ND ND ug/L 10/01/03 -- -- 1 ND ND 7.6 1.7 4.5 ND ug/L 03/01/04 -- -- 1 ND 1.5 1.9 2.2 3.0 ND ug/L 09/01/04 -- -- 1 ND ND 1.1 ND ND ND ug/L 05/01/05 -- -- 1 ND ND ND ND ND ND ug/L 10/01/05 -- -- 1 ND ND ND ND ND ND ug/L 04/01/06 -- -- 1 4.3 ND ND ND ND ND ug/L 10/01/06 -- -- 1 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/02/08 0.5 -- 1 ND ND ND ND ND ND ug/L 12/05/08 0.36 -- 1 ND ND ND ND ND ND ug/L 04/16/09 0.09 -- 1 ND 0.35 B 0.53 B 0.23 B 1.2 B -- ug/L 10/07/09 0.36 -- 1 ND ND 0.422 J ND 0.914 J ND ug/L 04/28/10 0.36 -- 1 ND ND ND ND 0.649 J ND ug/L 10/11/10 0.36 -- 1 ND ND ND ND 0.638 J ND ug/L 05/10/11 0.36 -- 1 ND ND ND ND ND ND ug/L 10/06/11 0.36 -- 1 ND ND ND ND ND ND ug/L 04/16/12 0.36 -- 1 ND ND ND ND ND ND ug/L 10/24/12 0.36 -- 1 ND ND ND ND 0.494 J ND ug/L 04/24/13 0.36 -- 1 ND ND ND ND ND ND ug/L 09/10/13 0.36 -- 1 ND ND ND ND ND ND ug/L 04/22/14 0.36 -- 1 ND ND ND ND ND ND ug/L 10/06/14 0.36 -- 1 ND ND ND ND ND ND ug/L 04/07/15 0.36 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.36 -- 1 ND ND ND ND ND ND ug/L 04/26/16 0.36 -- 1 ND ND ND ND ND ND ug/L 09/28/16 0.36 -- 1 ND ND ND ND 0.427 J ND ug/L 04/27/17 0.36 -- 1 ND ND ND ND 0.409 J ND ug/L 10/17/17 0.36 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.36 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.36 1.00 -- ND ND ND ND ND ND ug/L 04/08/19 0.36 1.00 -- ND ND ND ND ND ND ug/L 10/09/19 0.36 1.00 -- ND ND ND ND ND ND ug/L 04/20/20 0.36 1.00 -- ND ND ND ND 1.29 ND ug/L 10/13/20 0.36 1.00 -- ND ND ND ND ND ND ug/L 04/29/21 0.36 1.00 -- ND ND ND ND ND ND ug/L 10/12/21 0.36 1.00 -- ND ND ND ND ND ND ug/L 04/21/22 0.36 1.00 -- ND ND ND ND ND ND ug/L 10/19/22 0.44 5.00 -- ND ND ND ND ND ND Chromium ug/L 03/01/00 -- -- 10 ND ND 28 12 ND ND NC 2L = 10 ug/L ug/L 09/01/00 -- -- 10 ND ND 40 ND ND ND EPA MCL = 100 ug/L ug/L 03/01/01 -- -- 10 ND ND 14 ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND 10 14 ND ug/L 03/01/02 -- -- 10 ND ND ND ND 11 ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND 12 12 10 ND ug/L 03/01/04 -- -- 10 ND ND 11 12 12 ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND 18 ND 90 ND ug/L 04/01/06 -- -- 10 ND ND 25.7 ND 13.2 ND ug/L 10/01/06 -- -- 10 ND ND ND ND 66 ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/02/08 2 -- 10 ND ND 25.2 ND 91.5 ND ug/L 12/05/08 1 -- 10 ND ND ND ND ND ND ug/L 04/16/09 0.7 -- 10 -- 3.4 J 44.2 12.8 52.5 ND ug/L 10/07/09 1 -- 10 ND ND 20.1 10.4 52.9 ND ug/L 04/28/10 1 -- 10 ND 1.52 J 6.17 J 4.75 J 37.4 ND ug/L 10/11/10 1 -- 10 ND ND 11.2 3.40 J 71.4 ND ug/L 05/10/11 1 -- 10 ND 5.13 J 73.8 15.1 109 ND ug/L 10/06/11 1 -- 10 1.27 J 2.33 J 12.8 9.49 J 36.4 ND ug/L 04/16/12 1 -- 10 ND 5.39 J 19.6 14.1 64.0 ND ug/L 10/24/12 1 -- 10 ND 2.34 J 42.2 8.00 J 51.6 ND ug/L 04/24/13 1.4 -- 10 1.74 J ND 21.8 2.79 J 39.3 ND ug/L 09/10/13 1.4 -- 10 ND ND 2.06 J 5.05 J 6.3 J ND ug/L 04/22/14 1.4 -- 10 ND 2.52 J 8.14 J 5.49 J 12.2 ND ug/L 10/06/14 1.4 -- 10 ND 2.59 J 12.8 6.34 J 5.58 J ND ug/L 04/07/15 1.4 -- 10 ND 3.97 J 20.0 9.33 J 9.31 J ND ug/L 10/07/15 1.4 -- 10 ND 2.66 J 29.9 7.78 J 4.61 J ND ug/L 04/26/16 1.4 -- 10 ND ND 3.57 J 1.56 J 2.83 J ND ug/L 09/28/16 1.4 -- 10 ND ND 2.98 J ND ND ND ug/L 04/27/17 1.4 -- 10 ND ND 7.43 J 1.52 J 2.45 J ND ug/L 10/17/17 1.4 -- 10 ND 3.94 J 5.66 J 4.38 J 2.36 J ND ug/L 04/16/18 1.4 -- 10 ND 1.76 J 12.6 3.90 J 2.70 J ND ug/L 10/18/18 1.4 10 -- ND 2.48 J 5.02 J 5.34 J 2.87 J ND ug/L 04/08/19 1.4 10 -- ND 2.40 J 6.88 J 3.39 J 1.94 J ND ug/L 10/09/19 1.4 10 -- ND 1.83 J ND 3.98 J ND ND ug/L 04/20/20 1.4 10 -- ND 1.70 J ND 1.66 J 1.49 J ND ug/L 10/13/20 1.4 10 -- 2.51 J 4.94 J 3.37 J 7.27 J 3.33 J ND ug/L 04/29/21 1.4 10 -- ND 2.55 J 3.22 J 2.58 J ND ND ug/L 10/12/21 1.4 10 -- ND 3.72 J 3.21 J 5.46 J 2.88 J ND ug/L 04/21/22 1.4 10 -- ND 2.52 J 2.32 J 2.12 J ND ND ug/L 10/19/22 1.1 10 -- ND ND ND 2.00 J 1.80 J ND 2 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 Lead ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND NC 2L = 15 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND EPA MCL = 15 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND 26 ND 16 ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND 62 ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND 11.7 ND ug/L 04/10/07 -- -- -- 2.0 2.0 6.7 1 2.0 2.9 ND ug/L 09/25/07 -- -- -- 2.0 ND 3.6 1 ND ND ND ug/L 05/02/08 2.0 -- 10 ND ND 5.6 1 ND 17.6 ND ug/L 12/05/08 1.9 -- 10 ND ND ND ND ND ND ug/L 04/16/09 1.6 -- 10 -- 4.1 1 12.4 3.7 1 19 ND ug/L 10/07/09 1.9 -- 10 ND ND 3.31 1 2.44 1 14 ND ug/L 04/28/10 1.9 -- 10 ND ND ND ND 7.98 1 ND ug/L 10/11/10 1.9 -- 10 ND ND 2.01 1 ND 16.4 ND ug/L 05/10/11 1.9 -- 10 ND ND 11.3 2.85 1 34.3 ND ug/L 10/06/11 1.9 -- 10 ND ND ND ND 8.6 1 ND ug/L 04/16/12 1.9 -- 10 ND 1.9 3.15 1 1.9 15.8 ND ug/L 10/24/12 1.9 -- 10 ND 2.3 1 11.2 2.79 1 18.7 ND ug/L 04/24/13 1.9 -- 10 ND ND ND ND 9.79 1 ND ug/L 09/10/13 2.1 -- 10 ND ND ND ND 4.72 1 ND ug/L 04/22/14 2.1 -- 10 ND 3.12 1 4.62 1 ND 8.23 1 ND ug/L 10/06/14 2.1 -- 10 ND ND ND ND ND ND ug/L 04/07/15 3.1 -- 10 ND ND ND ND ND ND ug/L 10/07/15 3.1 -- 10 ND 3.7 1 4.3 1 ND 3.7 1 ND ug/L 04/26/16 3.1 -- 10 ND ND ND ND ND ND ug/L 09/28/16 3.1 -- 10 ND ND 4.94 1 ND 3.56 1 ND ug/L 04/27/17 3.1 -- 10 ND ND ND ND ND ND ug/L 10/17/17 3.1 -- 10 ND ND ND ND ND ND ug/L 04/16/18 3.1 -- 10 ND ND ND ND ND ND ug/L 10/18/18 3.1 10 -- ND ND ND ND ND ND ug/L 04/08/19 3.1 10 -- ND ND ND ND ND ND ug/L 10/09/19 3.1 10 -- ND ND ND 3.28 1 ND ND ug/L 04/20/20 3.1 10 -- ND 3.62 1 ND ND ND ND ug/L 10/13/20 3.1 10 -- ND ND 4.17 1 ND 5.07 1 ND ug/L 04/29/21 3.1 10 -- ND ND 4.94 1 ND 7.88 1 ND ug/L 10/12/21 3.1 10 -- ND ND ND ND ND ND ug/L 04/21/22 3.1 10 -- ND ND ND ND ND ND ug/L 10/19/22 6.6 10 -- ND ND ND ND ND ND Mercury ug/L 03/01/00 -- -- 0.5 ND ND ND ND ND ND NC 2L = 1 ug/L ug/L 09/01/00 -- -- 0.5 ND ND ND ND ND ND EPA MCL = 2 ug/L ug/L 03/01/01 -- -- 0.5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 0.5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 0.5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 0.5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 0.5 ND 2.4 ND ND ND ND ug/L 10/01/03 -- -- 0.5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 0.5 ND 2.4 ND ND ND ND ug/L 09/01/04 -- -- 0.5 ND 0.9 ND ND ND ND ug/L 05/01/05 -- -- 0.5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 0.5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 0.5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 0.5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- -- 0.14 1 ND ND ND ND ug/L 09/25/07 -- -- -- 0.11 3.96 ND ND ND ND ug/L 05/02/08 0.11 -- 0.2 ND 0.45 ND ND ND ND ug/L 12/05/08 0.11 -- 0.2 ND ND ND ND ND ND ug/L 04/16/09 0.11 -- 0.2 -- 0.34 ND ND ND ND ug/L 10/07/09 0.054 -- 0.2 ND 0.0867 1 ND ND 0.0638 1 ND ug/L 04/28/10 0.17 -- 0.2 ND ND ND ND ND ND ug/L 10/11/10 0.17 -- 0.2 ND ND ND ND ND ND ug/L 05/10/11 0.17 -- 0.2 ND ND ND ND ND ND ug/L 10/06/11 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/16/12 0.17 -- 0.2 ND 0.237 ND ND ND ND ug/L 10/24/12 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/24/13 0.17 -- 0.2 ND ND ND ND ND ND ug/L 09/10/13 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/22/14 0.17 -- 0.2 ND ND ND ND ND ND ug/L 10/06/14 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/07/15 0.17 -- 0.2 ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/26/16 0.17 -- 0.2 ND ND ND ND ND ND ug/L 09/28/16 0.17 -- 0.2 ND ND ND ND ND ND ug/L 04/27/17 0.17 -- 0.2 ND 0.174 1 ND ND ND ND ug/L 10/17/17 0.17 -- 0.2 ND 0.667 ND ND ND ND ug/L 04/16/18 0.17 -- 0.2 ND 0.283 ND ND ND ND ug/L 10/18/18 0.15 0.20 -- ND ND ND ND ND ND ug/L 04/08/19 0.15 0.20 -- ND ND ND ND ND ND ug/L 10/09/19 0.15 0.20 -- ND ND ND ND ND ND ug/L 04/20/20 0.15 0.20 -- ND ND ND ND ND ND ug/L 10/13/20 0.15 0.20 -- ND ND ND ND ND ND ug/L 04/29/21 0.15 0.20 -- ND ND ND ND ND ND ug/L 10/12/21 0.15 0.20 -- ND ND ND ND ND ND ug/L 04/21/22 0.15 0.20 -- ND ND ND ND ND ND ug/L 10/19/22 0.08 0.20 -- ND H ND ND ND ND ND 3 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 Selenium ug/L 03/01/00 -- -- 20 ND ND ND ND ND ND NC 2L = 20 ug/L ug/L 09/01/00 -- -- 20 ND ND ND ND ND ND EPA MCL = 50 ug/L ug/L 03/01/01 -- -- 20 ND ND ND ND ND ND ug/L 09/01/01 -- -- 20 ND ND ND ND ND ND ug/L 03/01/02 -- -- 20 ND ND ND ND ND ND ug/L 09/01/02 -- -- 20 ND ND ND ND ND ND ug/L 04/01/03 -- -- 20 ND ND ND ND ND ND ug/L 10/01/03 -- -- 20 ND ND ND ND ND ND ug/L 03/01/04 -- -- 20 ND ND ND ND ND ND ug/L 09/01/04 -- -- 20 ND ND ND ND ND ND ug/L 05/01/05 -- -- 20 ND ND ND ND ND ND ug/L 10/01/05 -- -- 20 ND ND ND ND ND ND ug/L 04/01/06 -- -- 20 ND ND ND ND ND ND ug/L 10/01/06 -- -- 20 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/02/08 2.0 -- 10 ND ND ND ND ND ND ug/L 12/05/08 2.7 -- 10 ND ND ND ND ND ND ug/L 04/16/09 3.4 -- 10 -- ND ND ND ND ND ug/L 10/07/09 2.7 -- 10 ND ND ND ND ND ND ug/L 04/28/10 0.83 -- 10 ND ND ND ND ND ND ug/L 10/11/10 2.7 -- 10 1.31 J 2.7 2.7 2.7 5.55 J ND ug/L 05/10/11 0.83 -- 10 1.07 J ND ND ND ND ND ug/L 10/06/11 2.7 -- 10 ND ND ND ND ND ND ug/L 04/16/12 2.7 -- 10 ND ND ND ND ND ND ug/L 10/24/12 4.5 -- 10 ND ND ND ND ND ND ug/L 04/24/13 4.5 -- 10 ND ND ND ND ND ND ug/L 09/10/13 5.0 -- 10 ND ND ND ND ND ND ug/L 04/22/14 5.0 -- 10 ND ND ND ND ND ND ug/L 10/06/14 5.0 -- 10 ND ND ND ND ND ND ug/L 04/07/15 5.0 -- 10 ND ND ND ND ND ND ug/L 10/07/15 5.0 -- 10 ND ND ND ND ND ND ug/L 04/26/16 6.2 -- 10 ND ND ND ND ND ND ug/L 09/28/16 6.2 -- 10 ND ND ND ND ND ND ug/L 04/27/17 6.2 -- 10 ND ND ND ND ND ND ug/L 10/17/17 6.2 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.2 -- 10 ND ND ND ND ND ND ug/L 10/18/18 6.2 10 -- ND ND ND ND ND ND ug/L 04/08/19 6.2 10 -- ND ND ND ND ND ND ug/L 10/09/19 6.2 10 -- ND ND ND ND ND ND ug/L 04/20/20 6.2 10 -- ND ND ND ND ND ND ug/L 10/13/20 6.2 10 -- ND ND ND ND ND ND ug/L 04/29/21 6.2 10 -- ND ND ND ND ND ND ug/L 10/12/21 6.2 10 -- ND ND ND ND ND ND ug/L 04/21/22 6.2 10 -- ND ND ND ND ND ND ug/L 10/19/22 10 20 -- ND ND ND ND ND ND Silver ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND NC 2L = 20 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND EPA MCL = 100 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/02/08 2.0 -- 10 ND ND ND ND ND ND ug/L 12/05/08 1.9 -- 10 ND ND ND ND ND ND ug/L 04/16/09 1.0 -- 10 -- 5.2 J 2.1 J 5 J ND ND ug/L 10/07/09 1.9 -- 10 ND 2.34 J 3.35 J 3.53 J 2.44 J ND ug/L 04/28/10 1.9 -- 10 ND 5.16 J 6.91 J 5.57 J 2.93 J ND ug/L 10/11/10 1.9 -- 10 ND 2 J ND 3.56 J ND ND ug/L 05/10/11 1.9 -- 10 ND 2.04 J ND 3.07 J 3.11 J ND ug/L 10/06/11 1.9 -- 10 ND ND ND 1.92 J 1.9 J ND ug/L 04/16/12 1.9 -- 10 ND 3.7 J 4.39 J 4.54 J 5.39 J ND ug/L 10/24/12 1.9 -- 10 ND ND 2.94 J ND 3.8 J ND ug/L 04/24/13 1.9 -- 10 ND 4.22 J 2.96 J 4.42 J ND ND ug/L 09/10/13 1.9 -- 10 ND ND 2.16 J 2.59 J 2.62 J ND ug/L 04/22/14 1.9 -- 10 ND ND ND ND ND ND ug/L 10/06/14 1.9 -- 10 ND ND ND ND ND ND ug/L 04/07/15 1.9 -- 10 ND 2.16 J 2.18 J ND ND ND ug/L 10/07/15 1.9 -- 10 2.79 J ND ND ND ND ND ug/L 04/26/16 1.9 -- 10 ND ND ND ND ND ND ug/L 09/28/16 1.9 -- 10 ND ND ND ND ND ND ug/L 04/27/17 1.9 -- 10 ND 2.04 J ND 2.66 J ND ND ug/L 10/17/17 1.9 -- 10 ND ND ND ND ND ND ug/L 04/16/18 1.9 -- 10 ND ND ND ND 2.23 J ND ug/L 10/18/18 1.9 10 -- ND ND ND ND ND ND ug/L 04/08/19 1.9 10 -- ND ND ND ND ND ND ug/L 10/09/19 1.9 10 -- ND ND ND ND ND ND ug/L 04/20/20 1.9 10 -- ND ND ND ND ND ND ug/L 10/13/20 1.9 10 -- ND ND ND ND ND ND ug/L 04/29/21 1.9 10 -- ND 2.48 J ND ND ND ND ug/L 10/12/21 1.9 10 -- ND ND ND ND ND ND ug/L 04/21/22 1.9 10 -- ND ND ND ND ND ND ug/L 10/19/22 1.5 10 -- ND ND ND ND ND ND 4 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 Acetone ug/L 03/01/00 -- -- 100 ND ND ND ND ND ND NC 2L = 6000 ug/L ug/L 09/01/00 -- -- 100 ND ND ND ND ND ND (No EPA MCL) ug/L 03/01/01 -- -- 100 ND ND ND ND ND ND ug/L 09/01/01 -- -- 100 ND ND ND ND ND ND ug/L 03/01/02 -- -- 100 ND ND ND ND ND ND ug/L 09/01/02 -- -- 100 ND ND ND ND ND ND ug/L 04/01/03 -- -- 100 ND ND ND ND ND ND ug/L 10/01/03 -- -- 100 ND ND ND ND ND ND ug/L 03/01/04 -- -- 100 ND ND ND ND ND ND ug/L 09/01/04 -- -- 100 ND ND ND ND ND ND ug/L 05/01/05 -- -- 100 ND ND ND ND ND ND ug/L 10/01/05 -- -- 100 ND ND ND ND ND ND ug/L 04/01/06 -- -- 100 ND ND ND ND ND ND ug/L 10/01/06 -- -- 100 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND 33 1 1.4 1 ND ug/L 09/25/07 -- -- -- 3.8 B 5.8 1 7.1 1 9.1 1 20 1 ND ug/L 05/02/08 0.62 -- 100 ND ND ND ND ND ND ug/L 12/05/08 1.5 -- 100 ND 0.37 6.4 1 5.6 1 6.1 1 ND ug/L 04/16/09 1.5 -- 100 -- 15 1 ND ND ND ND ug/L 10/07/09 2.8 -- 55 ND ND ND ND ND ND ug/L 10/14/09 1.5 -- 100 ND -- -- -- -- ND ug/L 04/28/10 1.5 -- 100 ND ND ND ND ND ND ug/L 10/11/10 1.5 -- 100 ND ND ND ND ND ND ug/L 05/10/11 1.2 -- 100 ND ND ND ND 4.1 1 ND ug/L 10/06/11 1.2 -- 100 ND ND ND ND 5.7 1 ND ug/L 04/16/12 1.2 -- 100 ND 3.8 1 ND ND ND ND ug/L 10/24/12 1.2 -- 100 ND 12 1 ND ND 12 1 ND ug/L 04/24/13 0.96 -- 100 ND ND ND ND ND ND ug/L 09/10/13 1.2 -- 100 ND ND ND ND 8.6 1 ND ug/L 04/22/14 1.2 -- 100 ND ND ND ND ND ND ug/L 10/06/14 1.2 -- 100 ND ND ND ND ND ND ug/L 04/07/15 1.2 -- 100 ND ND ND ND 3.6 1 ND ug/L 10/07/15 1.2 -- 100 ND ND ND ND ND ND ug/L 04/26/16 1.2 -- 100 ND ND ND ND ND ND ug/L 09/28/16 10 -- 100 ND ND ND ND ND ND ug/L 04/27/17 10 -- 100 16 B 20 B 32 B 19 B 31 B 20 1 ug/L 10/17/17 10 -- 100 ND ND ND ND ND ND ug/L 04/16/18 10 -- 100 ND ND ND ND 14 1 ND ug/L 10/18/18 10 20 -- ND ND ND ND ND ND ug/L 04/08/19 10 20 -- ND ND ND ND 13 1 ND ug/L 10/09/19 10 20 -- ND ND ND ND ND ND ug/L 04/20/20 10 20 -- ND ND ND ND ND ND ug/L 10/13/20 10 20 -- ND ND ND ND ND ND ug/L 04/29/21 10 20 -- ND ND ND ND 15 1 ND ug/L 10/12/21 10 20 -- ND ND ND ND ND 26 ug/L 04/21/22 10 20 -- ND ND ND ND ND ND ug/L 10/19/22 10 20 -- ND ND ND ND ND ND Benzene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 1 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND EPA MCL = 5 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND 1.3 ND 0.5 1 0.5 1 ND ug/L 05/02/08 0.2 -- 1 ND 1.7 ND ND 0.43 1 ND ug/L 12/05/08 0.2 -- 1 ND 162 ND 0.51 1 ND ND ug/L 04/16/09 0.2 -- 1 -- ND ND ND ND ND ug/L 10/07/09 0.2 -- 1 ND 1.6 ND 0.51 1 ND ND ug/L 04/28/10 0.05 -- 1 ND 1.7 ND ND ND ND ug/L 10/11/10 0.2 -- 1 ND 1.5 ND 0.49 1 ND ND ug/L 05/10/11 0.68 -- 1 ND 2.7 ND ND ND ND ug/L 10/06/11 0.68 -- 1 ND 1.8 ND ND ND ND ug/L 04/16/12 0.15 -- 1 ND 2.8 ND ND ND ND ug/L 10/24/12 0.15 -- 1 ND 2.2 0.15 0.44 1 0.15 ND ug/L 04/24/13 0.25 -- 1 ND 3.5 ND 0.34 1 ND ND ug/L 09/10/13 0.15 -- 1 ND 3.0 ND ND ND ND ug/L 04/22/14 0.15 -- 1 ND 3.5 ND ND ND ND ug/L 10/06/14 0.15 -- 1 ND 3.9 0.54 1 ND ND ND ug/L 04/07/15 0.15 -- 1 ND 3.7 ND ND ND ND ug/L 10/07/15 0.15 -- 1 ND 3.3 ND 0.58 1 ND ND ug/L 04/26/16 0.15 -- 1 ND 3.9 ND ND ND ND ug/L 09/28/16 0.15 -- 1 ND 4.3 ND 0.52 1 ND ND ug/L 04/27/17 0.15 -- 1 ND 5.4 ND ND ND ND ug/L 10/17/17 0.15 -- 1 ND 4.4 ND ND ND ND ug/L 04/16/18 0.15 -- 1 ND 5.0 ND ND ND ND ug/L 10/18/18 0.15 1.0 -- ND 2.9 ND ND ND ND ug/L 04/08/19 0.15 1.0 -- ND 5.6 ND ND ND ND ug/L 10/09/19 0.15 1.0 -- ND 4.8 ND ND ND ND ug/L 04/20/20 0.15 1.0 -- ND 5.0 ND ND ND ND ug/L 10/13/20 0.15 1.0 -- ND 4.8 ND ND ND ND ug/L 04/29/21 0.15 1.0 -- ND 7.8 ND ND ND ND ug/L 10/12/21 0.15 1.0 -- ND 4.8 ND ND ND ND ug/L 04/21/22 0.15 1.0 -- ND 5.8 ND ND ND ND ug/L 10/19/22 0.15 1.0 -- ND 3.9 ND ND ND ND 5 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 Bromoform ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- NC 2L = 4 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- EPA MCL = 80 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ug/L 04/01/03 -- -- 5 ND ND ND ND ND -- ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ug/L 04/01/06 -- -- 5 ND ND ND ND ND -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ug/L 04/10/07 -- -- -- ND ND ND ND ND -- ug/L 09/25/07 -- -- -- ND ND ND ND ND -- uq/L 05/02/08 0.29 -- 3 ND ND ND ND ND -- ug/L 12/05/08 0.71 -- 3 ND 7.1 J ND ND ND -- ug/L 04/16/09 0.71 -- 3 -- ND ND ND ND -- ug/L 10/07/09 0.71 -- 3 ND ND ND ND ND -- ug/L 04/28/10 0.2 -- 3 ND ND ND ND ND ND ug/L 10/11/10 0.71 -- 3 ND ND ND ND ND ND ug/L 05/10/11 0.68 -- 3 ND -- -- -- -- ND ug/L 10/06/11 0.68 -- 3 ND ND ND ND ND ND ug/L 04/16/12 0.22 -- 3 ND ND ND ND ND ND ug/L 10/24/12 0.22 -- 3 ND ND ND ND ND ND ug/L 04/24/13 0.33 -- 3 ND ND ND ND ND ND ug/L 09/10/13 0.22 -- 3 ND ND ND ND ND ND ug/L 04/22/14 0.22 -- 3 ND ND ND ND ND ND ug/L 10/06/14 0.22 -- 3 ND ND ND ND ND ND ug/L 04/07/15 0.22 -- 3 ND ND ND ND ND -- ug/L 10/07/15 0.22 -- 3 ND ND ND ND ND -- ug/L 04/26/16 0.22 -- 3 ND ND ND ND ND -- ug/L 09/28/16 0.22 -- 3 ND ND ND ND ND -- ug/L 04/27/17 0.22 -- 3 ND ND ND ND ND ND ug/L 10/17/17 0.22 -- 3 ND ND ND ND ND ND ug/L 04/16/18 0.22 -- 3 ND ND ND ND ND ND ug/L 10/18/18 0.22 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.22 1.0 -- ND ND ND ND ND ND ug/L 10/09/19 0.22 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.22 1.0 -- ND ND ND ND ND ND ug/L 10/13/20 0.22 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.22 1.0 -- ND ND ND ND ND ND ug/L 10/12/21 0.22 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.22 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.22 1.0 -- ND ND ND ND ND ND Carbon Tetrachloride ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- NC 2L = 0.3 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- EPA MCL = 5 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ug/L 04/01/03 -- -- 10 ND ND ND ND ND -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ug/L 04/01/06 -- -- 10 ND ND ND ND ND -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ug/L 04/10/07 -- -- -- ND ND ND ND ND -- ug/L 09/25/07 -- -- -- ND ND ND ND ND -- ug/L 05/02/08 0.35 -- 1 ND ND ND ND ND -- ug/L 12/05/08 0.38 -- 1 ND ND ND ND ND -- ug/L 04/16/09 0.38 -- 1 -- ND ND ND ND -- ug/L 10/07/09 0.38 -- 1 ND ND ND ND ND -- ug/L 04/28/10 0.082 -- 1 ND ND ND ND ND ND ug/L 10/11/10 0.38 -- 1 ND ND ND ND ND ND ug/L 05/10/11 0.69 -- 1 ND ND ND ND ND ND ug/L 10/06/11 0.69 -- 1 ND ND ND ND ND ND ug/L 04/16/12 0.17 -- 1 ND ND ND ND ND ND ug/L 10/24/12 0.17 -- 1 ND ND ND ND ND ND ug/L 04/24/13 0.34 -- 1 ND ND ND ND ND ND ug/L 09/10/13 0.17 -- 1 ND ND 0.17 ND ND ND ug/L 04/22/14 0.17 -- 1 ND ND ND ND ND ND ug/L 10/06/14 0.17 -- 1 ND ND ND ND ND ND ug/L 04/07/15 0.17 -- 1 ND ND ND ND ND -- ug/L 10/07/15 0.17 -- 1 ND ND ND ND ND -- ug/L 04/26/16 0.17 -- 1 ND ND ND ND ND -- ug/L 09/28/16 0.17 -- 1 ND ND ND ND ND -- ug/L 04/27/17 0.17 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.17 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.17 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.17 1.0 -- ND ND ND ND ND ND ug/L 10/09/19 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.17 1.0 -- ND ND ND ND ND ND ug/L 10/13/20 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.17 1.0 -- ND ND ND ND ND ND ug/L 10/12/21 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.17 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.17 1.0 ND ND ND ND ND ND 6 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 Chlorobenzene ug/L 03/01/00 -- -- 5 ND ND ND ND 5.4 ND NC 2L = 50 ug/L ug/L 09/01/00 -- -- 5 ND ND ND 6.2 6.7 ND EPA MCL = 100 ug/L ug/L 03/01/01 -- -- 5 ND ND ND 6.7 8.2 ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND 7.5 ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND 6.7 ND ug/L 10/01/03 -- -- 5 ND ND ND 8.3 10 ND ug/L 03/01/04 -- -- 5 ND ND ND 7.7 9.8 ND ug/L 09/01/04 -- -- 5 ND ND ND 11 ND ND ug/L 05/01/05 -- -- 5 ND ND ND 8 9 ND ug/L 10/01/05 -- -- 5 ND ND 5 14 5 ND ug/L 04/01/06 -- -- 5 ND ND ND 9.6 9.8 ND ug/L 10/01/06 -- -- 5 ND ND 5.6 13 12 ND ug/L 04/10/07 -- -- -- 0.16 0.16 0.16 0.16 11 ND ug/L 09/25/07 -- -- -- 0.16 2.0 J 4.2 ND ND ND ug/L 05/02/08 0.27 -- 3 ND 4.6 5.8 9.8 9.4 ND ug/L 12/05/08 0.27 -- 3 ND 0.38 1.8 J 12 5.6 ND ug/L 04/16/09 0.27 -- 3 -- 7.2 4.3 6.7 6.1 ND ug/L 10/07/09 0.27 -- 3 ND 3.3 6.2 15 5.6 ND ug/L 04/28/10 0.069 -- 3 ND 3.9 6.2 12 5.5 ND ug/L 10/11/10 0.27 -- 3 ND 3.2 6.4 16 3.9 ND ug/L 05/10/11 0.74 -- 3 ND 6.3 1.4 J 9.3 5.6 ND ug/L 10/06/11 0.74 -- 3 ND 5.1 3.4 15 7.8 ND ug/L 04/16/12 0.17 -- 3 ND 7.3 4.7 7.4 4.2 ND ug/L 10/24/12 0.17 -- 3 ND 5.8 3 15 7.4 ND ug/L 04/24/13 0.26 -- 3 ND 8.1 1.7 J 10 4.2 ND ug/L 09/10/13 0.17 -- 3 ND 7.6 5.4 12 7.7 ND ug/L 04/22/14 0.17 -- 3 ND 11 4.8 8.2 7.6 ND ug/L 10/06/14 0.17 -- 3 ND 9.8 8.1 9.5 9.3 ND ug/L 04/07/15 0.17 -- 3 ND 11 6.2 13 7.1 ND ug/L 10/07/15 0.17 -- 3 ND 7.2 8.0 18 0.67 J ND ug/L 04/26/16 0.17 -- 3 ND 10 6.0 8.3 4.4 ND ug/L 09/28/16 0.17 -- 3 ND 11 8.7 17 3.9 ND ug/L 04/27/17 0.17 -- 3 ND 13 3.3 10 4.2 ND ug/L 10/17/17 0.17 -- 3 ND 12 7.6 16 2.9 J ND ug/L 04/16/18 0.17 -- 3 ND 12 4.6 4.6 5.2 ND ug/L 10/18/18 0.17 1.0 -- ND 13 6.3 3.6 4.7 ND ug/L 04/08/19 0.17 1.0 -- ND 12 1.5 ND 5.4 ND ug/L 10/09/19 0.17 1.0 -- ND 14 6.5 12 2.9 ND ug/L 04/20/20 0.17 1.0 -- ND 12 2.0 ND 5.3 ND ug/L 10/13/20 0.17 1.0 -- ND 14 5.0 2.5 6.4 ND ug/L 04/29/21 0.17 1.0 -- ND 15 7.2 ND 6.4 ND ug/L 10/12/21 0.17 1.0 -- ND 16 7.5 12 4.4 ND ug/L 04/21/22 0.17 1.0 -- ND 15 4.2 ND 5.8 ND ug/L 10/19/22 0.17 1.0 -- ND 14 5.5 18 5.0 ND Chloroethane ug/L 03/01/00 -- -- 10 ND ND ND ND ND -- NC 2L = 3000 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND -- (No EPA MCL) ug/L 03/01/01 -- -- 10 ND ND ND ND ND -- ug/L 09/01/01 -- -- 10 ND ND ND ND ND -- ug/L 03/01/02 -- -- 10 ND ND ND ND ND -- ug/L 09/01/02 -- -- 10 ND ND ND ND ND -- ug/L 04/01/03 -- -- 10 ND ND ND ND ND -- ug/L 10/01/03 -- -- 10 ND ND ND ND ND -- ug/L 03/01/04 -- -- 10 ND ND ND ND ND -- ug/L 09/01/04 -- -- 10 ND ND ND ND ND -- ug/L 05/01/05 -- -- 10 ND ND ND ND ND -- ug/L 10/01/05 -- -- 10 ND ND ND ND ND -- ug/L 04/01/06 -- -- 10 ND ND ND ND ND -- ug/L 10/01/06 -- -- 10 ND ND ND ND ND -- ug/L 04/10/07 -- -- -- ND ND ND ND ND -- ug/L 09/25/07 -- -- -- ND ND ND ND ND -- ug/L 05/02/08 0.3 -- 10 ND ND ND ND ND -- ug/L 12/05/08 0.3 -- 10 ND 1.8 J ND ND ND -- ug/L 04/16/09 0.3 -- 10 -- ND ND ND ND -- ug/L 10/07/09 0.3 -- 10 ND ND ND ND ND -- ug/L 04/28/10 0.18 -- 10 ND ND ND ND ND ND ug/L 10/11/10 0.3 -- 10 ND ND ND ND ND ND ug/L 05/10/11 0.75 -- 10 ND ND ND ND ND ND ug/L 10/06/11 0.75 -- 10 ND ND ND ND ND ND ug/L 04/16/12 0.23 -- 10 ND ND ND ND ND ND ug/L 10/24/12 0.23 -- 10 ND ND ND ND ND ND ug/L 04/24/13 0.53 -- 10 ND ND ND ND ND ND ug/L 09/10/13 0.23 -- 10 ND ND ND ND ND ND ug/L 04/22/14 0.23 -- 10 ND ND ND ND ND ND ug/L 10/06/14 0.23 -- 10 ND ND ND ND ND -- ug/L 04/07/15 0.23 -- 10 ND ND ND ND ND -- ug/L 10/07/15 0.23 -- 10 ND ND ND ND ND -- ug/L 04/26/16 0.23 -- 10 ND ND ND ND ND -- ug/L 09/28/16 0.23 -- 10 ND ND ND ND ND -- ug/L 04/27/17 0.23 -- 10 ND ND ND ND ND ND ug/L 10/17/17 0.23 -- 10 ND ND ND ND ND ND ug/L 04/16/18 0.23 -- 10 ND ND ND ND ND ND ug/L 10/18/18 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/09/19 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/13/20 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/12/21 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.23 1.0 -- ND ND ND ND ND ND 7 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 1,2-Dichlorobenzene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 20 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND EPA MCL = 600 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND 1.2 1 0.84 1 0.60 1 ND ug/L 09/25/07 -- -- -- ND ND 1.2 1 0.79 1 0.48 1 ND ug/L 05/02/08 0.27 -- 5 ND ND 1 1 0.49 1 ND ND ug/L 12/05/08 0.27 -- 5 ND 0.42 ND 0.75 1 ND ND ug/L 04/16/09 0.27 -- 5 -- ND 1.1 1 0.59 1 0.41 1 ND ug/L 10/07/09 0.27 -- 5 ND ND 1.5 1 0.85 1 ND ND ug/L 04/28/10 0.052 -- 5 ND ND 1.4 1 0.73 1 ND ND ug/L 10/11/10 0.27 -- 5 ND ND 1.3 1 0.88 1 ND ND ug/L 05/10/11 0.11 -- 5 ND ND ND ND ND ND ug/L 10/06/11 0.11 -- 5 ND ND 0.74 1 0.79 1 ND ND ug/L 04/16/12 0.19 -- 5 ND ND 0.78 1 0.45 1 ND ND ug/L 10/24/12 0.19 -- 5 ND ND 0.56 1 0.81 1 ND ND ug/L 04/24/13 0.39 -- 5 ND ND ND 0.59 1 ND ND ug/L 09/10/13 0.19 -- 5 ND ND 0.85 1 0.67 1 0.41 1 ND ug/L 04/22/14 0.19 -- 5 ND ND 0.92 1 0.55 1 ND ND ug/L 10/06/14 0.19 -- 5 ND ND 1.3 ND ND ND ug/L 04/07/15 0.19 -- 5 ND 0.41 1 1.3 1 0.7 1 ND ND ug/L 10/07/15 0.19 -- 5 ND ND 1.4 1 0.84 1 ND ND ug/L 04/26/16 0.19 -- 5 ND ND 1.1 1 0.44 1 ND ND ug/L 09/28/16 0.19 -- 5 ND ND 1.5 1 0.83 1 ND ND ug/L 04/27/17 0.19 -- 5 ND ND 0.94 1 0.56 1 ND ND ug/L 10/17/17 0.19 -- 5 ND ND 1.5 1 0.82 1 ND ND ug/L 04/16/18 0.19 -- 5 ND ND 1.5 1 ND ND ND ug/L 10/18/18 0.19 1.0 -- ND ND 1.7 ND ND ND ug/L 04/08/19 0.19 1.0 -- ND 0.43 1 ND ND ND ND ug/L 10/09/19 0.19 1.0 -- ND ND 1.0 0.58 1 ND ND ug/L 04/20/20 0.19 1.0 -- ND ND ND ND ND ND ug/L 10/13/20 0.19 1.0 -- ND 0.43 1 0.89 1 ND ND ND ug/L 04/29/21 0.19 1.0 -- ND 0.48 1 1.2 ND ND ND ug/L 10/12/21 0.19 1.0 -- ND ND 1.5 ND ND ND ug/L 04/21/22 0.19 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.19 1.0 -- ND ND 1.2 0.80 1 ND ND 1,4-Dichlorobenzene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 6 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND EPA MCL = 75 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND 5.6 ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND 5.6 ND ug/L 05/01/05 -- -- 5 ND ND ND ND 5.0 ND ug/L 10/01/05 -- -- 5 ND 5.0 ND 6.0 ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND 5.0 ND ug/L 10/01/06 -- -- 5 ND ND ND ND 5.0 ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 0.15 3.5 1.4 4.1 5.4 ND ug/L 05/02/08 0.20 -- 1 ND 4.6 1.7 3.8 5.1 ND ug/L 12/05/08 0.38 -- 1 ND 0.27 1.8 4.0 3.5 ND ug/L 04/16/09 0.38 -- 1 -- 5.1 1.4 2.9 4.6 ND ug/L 10/07/09 0.38 -- 1 ND ND ND 4.6 4.1 ND ug/L 04/28/10 0.1 -- 1 ND 4.2 1.6 4.1 3.8 ND ug/L 10/11/10 0.38 -- 1 ND 3.9 1.6 4.5 2.3 ND ug/L 05/10/11 0.79 -- 1 ND 3.4 ND ND ND ND ug/L 10/06/11 0.79 -- 1 ND 3.6 ND 3.9 3.7 ND ug/L 04/16/12 0.19 -- 1 ND 3.6 1.0 2.3 2.5 ND ug/L 10/24/12 0.19 -- 1 ND 3.1 1.4 3.9 3.2 ND ug/L 04/24/13 0.14 -- 1 ND ND 0.82 1 2.9 2.4 ND ug/L 09/10/13 0.19 -- 1 ND 3.6 ND 3.1 3.9 ND ug/L 04/22/14 0.19 -- 1 ND 5.1 1.0 2.7 4.6 ND ug/L 10/06/14 0.19 -- 1 ND 4.9 1.6 2.2 5.0 ND ug/L 04/07/15 0.19 -- 1 ND 5.3 1.2 3.5 3.4 ND ug/L 10/07/15 0.19 -- 1 ND 3.6 1.7 4.7 0.53 1 ND ug/L 04/26/16 0.19 -- 1 ND 4.7 1.3 2.4 2.4 ND ug/L 09/28/16 0.19 -- 1 ND 4.7 1.6 4.2 2.7 ND ug/L 04/27/17 0.19 -- 1 ND 6.1 ND 3.0 3.2 ND ug/L 10/17/17 0.19 -- 1 ND 5.5 2.1 4.5 3.8 ND ug/L 04/16/18 0.19 -- 1 ND 5.8 1.7 1.9 3.5 ND ug/L 10/18/18 0.19 1.0 -- ND 6.4 ND 2.2 4.4 ND ug/L 04/08/19 0.19 1.0 -- ND 6.0 0.94 1 0.71 1 3.1 ND ug/L 10/09/19 0.19 1.0 -- ND 5.8 ND 3.1 2.3 ND ug/L 04/20/20 0.19 1.0 -- ND 5.2 0.93 1 0.54 1 3.0 ND ug/L 10/13/20 0.19 1.0 -- ND 6.6 2.1 1.3 4.4 ND ug/L 04/29/21 0.19 1.0 -- ND 7.6 2.0 ND 3.8 ND ug/L 10/12/21 0.19 1.0 -- ND 6.7 1.8 3.2 ND ND ug/L 04/21/22 0.19 1.0 -- ND 7.0 ND ND 2.9 ND ug/L 10/19/22 0.19 1.0 -- ND 6.0 ND 4.1 2.7 ND 8 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 1,1-Dichloroethane ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 6 ug/L ug/L 09/01/00 -- -- 5 ND ND ND 5.8 ND ND (No EPA MCL) ug/L 03/01/01 -- -- 5 ND ND ND 5.0 ND ND ug/L 09/01/01 -- -- 5 ND ND ND 5.6 ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND 5.0 ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND 1.3 J ND 1.6 J ND ND ug/L 09/25/07 -- -- -- ND 1.7 J ND 2.9 J ND ND ug/L 05/02/08 0.33 -- 5 ND 1.3 J ND 2.0 J ND ND ug/L 12/05/08 0.33 -- 5 ND 0.54 ND 3.2 J ND ND ug/L 04/16/09 0.33 -- 5 -- 1.0 J ND 1.4 J ND ND ug/L 10/07/09 0.33 -- 5 ND 1.4 J ND 2.6 J ND ND ug/L 04/28/10 0.05 -- 5 ND 1.2 J ND 2.0 J ND ND ug/L 10/11/10 0.33 -- 5 ND 1.4 J ND 2.6 J ND ND ug/L 05/10/11 0.08 -- 5 ND 0.97 J 0.08 2.0 J ND ND ug/L 10/06/11 0.08 -- 5 ND 1.2 J ND 2.3 J ND ND ug/L 04/16/12 0.13 -- 5 ND 1.0 J ND 1.5 J ND ND ug/L 10/24/12 0.13 -- 5 ND 0.72 J ND 2.3 J ND ND ug/L 04/24/13 0.28 -- 5 ND 0.71 J ND 1.9 J ND ND ug/L 09/10/13 0.13 -- 5 ND 0.67 J 0.13 2.2 J ND ND ug/L 04/22/14 0.13 -- 5 ND 0.56 J ND 1.2 J ND ND ug/L 10/06/14 0.13 -- 5 ND 0.74 J ND 1.5 ND ND ug/L 04/07/15 0.13 -- 5 ND ND ND 1.5 J ND ND ug/L 10/07/15 0.13 -- 5 ND 1.0 J ND 3.2 J ND ND ug/L 04/26/16 0.13 -- 5 ND 0.45 J ND 2.0 J ND ND ug/L 09/28/16 0.13 -- 5 ND 0.86 J ND 2.9 J ND ND ug/L 04/27/17 0.13 -- 5 ND 0.47 J ND 1.6 J ND ND ug/L 10/17/17 0.13 -- 5 ND 0.52 J ND 2.6 J ND ND ug/L 04/16/18 0.13 -- 5 ND 0.50 J ND 1.3 J ND ND ug/L 10/18/18 0.13 1.0 -- ND 0.51 J ND 1.8 ND ND ug/L 04/08/19 0.13 1.0 -- ND ND ND ND ND ND ug/L 10/09/19 0.13 1.0 -- ND 0.41 J ND 2.2 ND ND ug/L 04/20/20 0.13 1.0 -- ND ND ND ND ND ND ug/L 10/13/20 0.13 1.0 -- ND 0.56 J ND 1.5 ND ND ug/L 04/29/21 0.13 1.0 -- ND 0.68 J ND ND ND ND ug/L 10/12/21 0.13 1.0 -- ND ND ND 2.3 ND ND ug/L 04/21/22 0.13 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.13 1.0 -- ND 0.43 J ND 2.7 ND ND 1,2-Dichloroethane ug/L 03/01/00 -- -- 5 ND ND ND ND ND -- NC 2L = 0.4 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND -- EPA MCL = 5 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND -- ug/L 09/01/01 -- -- 5 ND ND ND ND ND -- ug/L 03/01/02 -- -- 5 ND ND ND ND ND -- ug/L 09/01/02 -- -- 5 ND ND ND ND ND -- ug/L 04/01/03 -- -- 5 ND ND ND ND ND -- ug/L 10/01/03 -- -- 5 ND ND ND ND ND -- ug/L 03/01/04 -- -- 5 ND ND ND ND ND -- ug/L 09/01/04 -- -- 5 ND ND ND ND ND -- ug/L 05/01/05 -- -- 5 ND ND ND ND ND -- ug/L 10/01/05 -- -- 5 ND ND ND ND ND -- ug/L 04/01/06 -- -- 5 ND ND ND ND ND -- ug/L 10/01/06 -- -- 5 ND ND ND ND ND -- ug/L 04/10/07 -- -- -- ND ND ND ND ND -- ug/L 09/25/07 -- -- -- ND ND ND ND ND -- ug/L 05/02/08 0.46 -- 1 ND ND ND ND ND -- ug/L 12/05/08 0.65 -- 1 ND 1.6 J ND ND ND -- ug/L 04/16/09 0.65 -- 1 -- ND ND ND ND -- ug/L 10/07/09 0.65 -- 1 ND ND ND ND ND -- ug/L 04/28/10 0.082 -- 1 ND ND ND ND ND ND ug/L 10/11/10 0.65 -- 1 ND ND ND ND ND ND ug/L 05/10/11 0.47 -- 1 ND ND ND ND ND ND ug/L 10/06/11 0.47 -- 1 ND ND ND ND ND ND ug/L 04/16/12 0.21 -- 1 ND ND ND ND ND ND ug/L 10/24/12 0.21 -- 1 ND ND ND ND ND ND ug/L 04/24/13 0.24 -- 1 ND ND ND ND ND ND ug/L 09/10/13 0.21 -- 1 ND ND ND ND ND ND ug/L 04/22/14 0.21 -- 1 ND ND ND ND ND ND ug/L 10/06/14 0.21 -- 1 ND ND ND ND ND -- ug/L 04/07/15 0.21 -- 1 ND ND ND ND ND -- ug/L 10/07/15 0.21 -- 1 ND ND ND ND ND -- ug/L 04/26/16 0.21 -- 1 ND ND ND ND ND -- ug/L 09/28/16 0.21 -- 1 ND ND ND ND ND -- ug/L 04/27/17 0.21 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.21 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.21 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.21 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.21 1.0 -- ND ND ND ND ND ND ug/L 10/09/19 0.21 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.21 1.0 -- ND ND ND ND ND ND ug/L 10/13/20 0.21 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.21 1.0 -- ND ND ND ND ND ND ug/L 10/12/21 0.21 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.21 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.21 1.0 -- ND ND ND ND ND ND 9 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 1,1-Dichloroethene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 7 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND EPA MCL = 7 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND 0.45 J ND ND ug/L 05/02/08 0.2 -- 5 ND ND ND ND ND ND ug/L 12/05/08 0.24 -- 5 ND 0.65 ND 0.56 J ND ND ug/L 04/16/09 0.24 -- 5 -- ND ND ND ND ND ug/L 10/07/09 0.24 -- 5 ND ND ND 0.46 J ND ND ug/L 04/28/10 0.15 -- 5 ND ND ND ND ND ND ug/L 10/11/10 0.24 -- 5 ND ND ND 0.48 J ND ND ug/L 05/10/11 0.6 -- 5 ND ND ND ND ND ND ug/L 10/06/11 0.6 -- 5 ND ND ND ND ND ND ug/L 04/16/12 0.21 -- 5 ND ND ND ND ND ND ug/L 10/24/12 0.21 -- 5 ND ND ND 0.4 J ND ND ug/L 04/24/13 0.31 -- 5 ND ND ND 0.37 J ND ND ug/L 09/10/13 0.21 -- 5 ND ND ND 0.47 J ND ND ug/L 04/22/14 0.21 -- 5 ND ND ND ND ND ND ug/L 10/06/14 0.21 -- 5 ND ND ND ND ND ND ug/L 04/07/15 0.21 -- 5 ND ND ND ND ND ND ug/L 10/07/15 0.21 -- 5 ND ND ND ND ND ND ug/L 04/26/16 0.21 -- 5 ND ND ND ND ND ND ug/L 09/28/16 0.21 -- 5 ND ND ND 0.8 J ND ND ug/L 04/27/17 0.21 -- 5 ND ND ND ND ND ND ug/L 10/17/17 0.21 -- 5 ND ND ND 0.68 J ND ND ug/L 04/16/18 0.21 -- 5 ND ND ND ND ND ND ug/L 10/18/18 0.21 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.21 1.0 -- ND ND ND ND ND ND ug/L 10/09/19 0.21 1.0 -- ND ND ND 0.64 J ND ND ug/L 04/20/20 0.21 1.0 -- ND ND ND ND ND ND ug/L 10/13/20 0.21 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.21 1.0 -- ND ND ND ND ND ND ug/L 10/12/21 0.21 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.21 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.21 1.0 -- ND ND ND 1.5 ND ND cis- 1,2-Dichloroethene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND NC 2L = 70 ug/L ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND EPA MCL = 70 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND 0.34 J 0.69 J ND ND ug/L 09/25/07 -- -- -- ND 2.2 J 0.45 J 1.3 J 0.14 ND ug/L 05/02/08 0.30 -- 5 ND 1.3 J 0.42 J 0.77 J ND ND ug/L 12/05/08 0.36 -- 5 ND ND ND ND ND ND ug/L 04/16/09 0.36 -- 5 -- 1.2 J 0.58 J 0.67 J ND ND ug/L 10/07/09 0.36 -- 5 ND 2.4 J 0.62 J 1.4 J ND ND ug/L 04/28/10 0.075 -- 5 ND 1.9 J 0.61 J 0.87 J ND ND ug/L 10/11/10 0.36 -- 5 ND 2.2 J 0.51 J 1.1 J ND ND ug/L 05/10/11 0.72 -- 5 ND 1.1 J ND 0.89 J ND ND ug/L 10/06/11 0.72 -- 5 ND 1.5 J ND 1.1 J ND ND ug/L 04/16/12 0.15 -- 5 ND 0.86 J 0.55 J 0.63 J ND ND ug/L 10/24/12 0.15 -- 5 ND 0.62 J ND 0.8 J ND ND ug/L 04/24/13 0.27 -- 5 ND 0.73 J ND 0.85 J ND ND ug/L 09/10/13 0.15 -- 5 ND 0.98 J 0.48 J 0.87 J ND ND ug/L 04/22/14 0.15 -- 5 ND 0.52 J ND ND ND ND ug/L 10/06/14 0.15 -- 5 ND 0.61 J ND ND ND ND ug/L 04/07/15 0.15 -- 5 ND 0.44 J ND 0.52 J ND ND ug/L 10/07/15 0.15 -- 5 ND 0.94 J 0.41 J 0.87 J ND ND ug/L 04/26/16 0.15 -- 5 ND 0.51 J ND 0.43 J ND ND ug/L 09/28/16 0.15 -- 5 0.15 0.77 J ND ND ND ND ug/L 04/27/17 0.15 -- 5 ND 0.57 J ND 0.49 J ND ND ug/L 10/17/17 0.15 -- 5 ND 0.47 J ND 0.64 J ND ND ug/L 04/16/18 0.15 -- 5 ND 0.56 J ND ND ND ND ug/L 10/18/18 0.15 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.15 1.0 -- ND 0.65 J ND ND ND ND ug/L 10/09/19 0.15 1.0 -- ND 0.57 J 0.41 J 0.51 J ND ND ug/L 04/20/20 0.15 1.0 -- ND ND ND ND ND ND ug/L 10/13/20 0.15 1.0 -- ND 0.87 J 0.44 J ND ND ND ug/L 04/29/21 0.15 1.0 -- ND ND ND ND ND ND ug/L 10/12/21 0.15 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.15 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.15 1.0 -- ND ND ND ND ND ND 10 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 Methylene Chloride ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND NC 2L = 5 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND EPA MCL = 5 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND 0.51 J ND ND 0.088 ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/02/08 0.24 -- 1 ND ND ND ND ND ND ug/L 12/05/08 0.53 -- 1 ND ND ND ND ND ND ug/L 04/16/09 0.53 -- 1 -- ND ND ND ND ND ug/L 10/07/09 0.53 -- 1 ND 0.76 J ND ND ND ND ug/L 04/28/10 0.07 -- 1 ND ND ND ND ND ND ug/L 10/11/10 0.53 -- 1 ND 0.77 J ND ND ND ND ug/L 05/10/11 0.14 -- 1 ND ND ND ND ND ND ug/L 10/06/11 0.14 -- 1 ND ND ND ND ND ND ug/L 04/16/12 0.23 -- 1 ND 0.37 J ND ND ND ND ug/L 10/24/12 0.23 -- 1 ND ND ND ND ND ND ug/L 04/24/13 0.50 -- 1 ND ND ND ND ND ND ug/L 09/10/13 0.23 -- 1 ND ND ND ND ND ND ug/L 04/22/14 0.23 -- 1 ND ND ND ND ND ND ug/L 10/06/14 0.23 -- 1 ND ND ND ND ND ND ug/L 04/07/15 0.23 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.23 -- 1 ND ND ND ND ND ND ug/L 04/26/16 0.23 -- 1 ND ND ND ND ND ND ug/L 09/28/16 0.23 -- 1 ND ND ND ND ND ND ug/L 04/27/17 0.23 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.23 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.23 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.23 1.0 -- ND ND 0.78 B ND ND 0.5 J ug/L 10/09/19 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/13/20 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/12/21 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.23 1.0 -- ND ND ND ND ND ND Vinyl Chloride ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND NC 2L = 0.03 ug/L ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND EPA MCL = 2 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- 0.15 J 0.72 J 0.54 J 0.63 J ND ND ug/L 09/25/07 -- -- -- ND 0.56 J ND 0.77 J ND ND ug/L 05/02/08 0.3 -- 1 ND 0.64 J 0.9 J 0.65 J ND ND ug/L 12/05/08 0.3 -- 1 ND 0.36 ND 0.67 J ND ND ug/L 04/16/09 0.3 -- 1 -- ND 0.46 J ND ND ND ug/L 10/07/09 0.3 -- 1 ND 0.49 J ND ND ND ND ug/L 04/28/10 0.083 -- 1 ND 0.52 J 0.62 J 0.44 J ND ND ug/L 10/11/10 0.3 -- 1 ND 0.51 J ND ND ND ND ug/L 05/10/11 0.6 -- 1 ND ND ND ND ND ND ug/L 10/06/11 0.6 -- 1 ND ND ND ND ND ND ug/L 04/16/12 0.32 -- 1 ND 0.45 J 0.48 J ND ND ND ug/L 10/24/12 0.32 -- 1 ND ND ND ND ND ND ug/L 04/24/13 0.28 -- 1 ND 0.45 J ND 0.45 J ND ND ug/L 09/10/13 0.32 -- 1 ND ND 0.45 J ND ND ND ug/L 04/22/14 0.32 -- 1 ND ND ND ND ND ND ug/L 10/06/14 0.32 -- 1 ND ND ND ND ND ND ug/L 04/07/15 0.32 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.32 -- 1 ND ND 0.65 J 0.59 J ND ND ug/L 04/26/16 0.32 -- 1 ND ND ND 0.47 J ND ND ug/L 09/28/16 0.32 -- 1 ND ND ND 0.52 J ND ND ug/L 04/27/17 0.32 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.32 -- 1 ND ND ND 0.45 J ND ND ug/L 04/16/18 0.32 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.32 1.0 -- ND ND ND ND ND ND ug/L 04/08/19 0.32 1.0 -- ND ND ND ND ND ND ug/L 10/09/19 0.32 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.32 1.0 -- ND ND ND ND ND ND ug/L 10/13/20 0.32 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.32 1.0 -- ND ND ND ND ND ND ug/L 10/12/21 0.32 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.32 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.32 1.0 -- ND ND ND 0.47 J ND ND 11 of 12 February 2023 TABLE 4 Summary of Groundwater Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina 19131339.105 Detected Monitoring Reporting Sample Method Practical SWS Upgradient Well Downgradient Wells Constituent/Parameter Units Date Detection Quantitation Reporting Blanks Limit Limit Limit MW-13 1-1 1-2 1-3 1-4 1,4-Dioxane ug/L 10/18/18 1.2 2.0 -- ND 240 250 300 60 ND NC 2L = 3 ug/L ug/L 04/08/19 1.2 2.0 -- ND 210 33 46 55 ND ug/L 10/09/19 1.2 2.0 -- ND 250 140 360 43 ND ug/L 04/20/20 0.80 2.0 -- ND 210 64 70 42 ND ug/L 10/13/20 0.80 2.0 -- ND 200 120 200 39 ND ug/L 04/29/21 0.80 2.0 -- ND 250 200 30 37 ND ug/L 10/12/21 0.80 2.0 -- 0.80 J 240 200 350 43 ND ug/L 04/21 /22 0.80 2.0 -- ND 270 200 89 47 ND ug/L 10/19/22 0.27 1.4 -- 0.32 J 200 160 310 32 ND Cyanide (total) ug/L 09/25/07 -- -- -- 0.0054 -- -- -- -- -- NC 2L = 70 ug/L ug/L 12/03/08 0.004 -- 10 ND -- -- -- -- -- EPA MCL = 200 ug/L ug/L 10/14/09 0.0047 -- 10 ND -- -- -- -- -- ug/L 10/19/22 2.5 10 10 3 J -- -- -- -- -- Sulfide ug/L 09/25/07 -- -- -- ND -- -- -- -- No NC 2L ug/L 12/03/08 0.1 -- 1 ND -- -- -- -- No EPA MCL ug/L 10/14/09 0.031 -- 1 ND -- -- -- -- -- ug/L 10/19/22 100 100 1 1300 H -- -- -- -- -- Notes: mg/L = milligrams per liter ug/L = micrograms per liter NC 2L = North Carolina Water Quality Standard EPA MCL = United States Environmental Protection Agency Maximum Contaminant Limit J = Prior to the 11/18 event, J flags are estimated values below the SWS Reporting limit. Starting with the 11/18 event, J flags are estimated values between MDL and PQL. B = blank -qualified data ND = not detected above the laboratory detection limit or stated reporting limit H = sample was prepped or analyzed beyond the specified holding time -- = no data available or no limit established # = EPA Action Level " = EPA Secondary MCL Blanks = field, trip and method blanks Bold = concentrations above applicable IMAC and/or NC 2L have been bolded. Shaded = concentrations above applicable EPA MCL have been shaded. MDL = laboratory method detection limit Data prior to April 2017 provided by S&ME Engineering Laboratory method blank data was unavailable prior to April 2017. However, B flags for the 04/16/09, 10/07/09, and 10/11/10 were present on laboratory electronic files. The following dilutions were noted for the October 2022 event: 1,4-dioxane (10x at I-3 and 5x at I-1, I-2). SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting on 01/18/07 12 of 12 February 2023 19131339.105 TABLE 5 Summary of Groundwater Field Parameters White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Upgradient Well Downgradient Wells MW-13 1-1 1-2 1-3 1-4 Constituent/Parameter Units Date pH (Field) S. U. 03/27/00 6.61 6.31 6.69 7.17 6.67 S. U. 09/13/00 15.70 6.59 5.84 6.68 6.49 S. U. 03/12/01 6.55 5.62 6.19 6.34 -- S. U. 09/13/01 6.29 5.58 6.01 6.25 6.80 S. U. 03/07/02 7.48 5.59 6.02 6.26 6.60 S. U. 09/18/02 6.44 5.77 6.08 6.37 6.64 S. U. 04/15/03 -- 6.08 6.39 6.61 6.71 S. U. 10/15/03 6.75 5.79 6.31 6.64 6.75 S. U. 03/24/04 8.02 7.80 7.81 7.80 8.17 S. U. 09/22/04 6.96 5.94 6.76 6.60 6.96 S. U. 05/10/05 8.58 8.03 8.14 8.27 8.50 S. U. 10/11/05 6.5 5.54 5.95 6.18 6.60 S. U. 04/24/06 -- 5.65 6.21 6.40 6.89 S. U. 10/16/06 -- 5.49 5.96 6.19 6.60 S. U. 04/10/07 6.35 5.62 6.19 6.46 6.95 S. U. 09/25/07 6.49 5.64 6.18 6.36 6.49 S. U. 05/02/08 6.48 5.60 6.31 6.61 7.01 S. U. 12/05/08 7.29 5.80 6.63 6.50 7.07 S. U. 04/16/09 7.29 6.40 6.82 7.11 7.46 S. U. 10/07/09 9.18 7.44 7.97 8.15 8.81 S. U. 04/28/10 6.6 5.67 6.08 6.30 6.78 S. U. 10/05/10 7.5 6.38 6.94 7.06 7.55 S. U. 05/10/11 -- 7.35 8.37 7.96 8.55 S. U. 10/06/11 7.61 6.14 7.12 6.89 7.69 S. U. 04/16/12 7.83 6.40 7.03 7.41 7.87 S. U. 10/24/12 7.88 7.49 8.25 7.66 8.59 S. U. 04/24/13 8.29 7.07 8.05 8.00 8.77 S. U. 09/09/13 8.33 6.76 7.22 7.31 8.12 S. U. 04/22/14 8.4 5.55 6.64 7.03 8.52 S. U. 10/01/14 7.69 6.04 6.70 6.85 7.43 S. U. 04/07/15 6.76 5.82 6.15 6.33 6.67 S. U. 10/06/15 6.47 5.48 5.89 5.97 6.35 S. U. 04/18/16 6.36 5.87 6.19 6.38 6.82 S. U. 09/26/16 6.54 5.64 5.99 6.11 6.57 S. U. 04/25/17 6.46 5.82 6.25 6.32 6.73 S. U. 10/16/17 6.55 5.75 6.28 6.22 6.68 S. U. 04/16/18 6.50 5.70 6.09 6.31 6.66 S. U. 10/18/18 6.39 5.84 6.08 6.21 6.70 S. U. 04/08/19 6.67 5.78 6.53 6.54 6.79 S. U. 10/09/19 6.43 5.75 6.16 6.20 6.67 S. U. 04/20/20 6.49 5.91 6.34 6.51 6.72 S. U. 10/13/20 5.90 5.73 6.16 6.29 6.71 S. U. 04/29/21 6.77 5.90 6.30 6.82 7.21 S. U. 10/12/21 6.29 5.79 6.09 6.13 6.55 S. U. 04/19/22 6.59 6.79 7.10 6.55 6.74 S. U. 10/19/22 6.44 5.84 6.14 6.13 6.69 Specific Conductance (Field) US/cm 03/27/00 353 877 1361 1687 1989 US/cm 09/13/00 335 971 1485 660 875 US/cm 03/12/01 7520 -- -- -- -- US/cm 09/13/01 88838 73234 68639 71673 65394 US/cm 03/07/02 676 1692 2240 2127 3445 US/cm 09/18/02 658 1619 2300 2913 2319 US/cm 04/15/03 -- 1650 1464 2040 1950 US/cm 10/15/03 480 1650 1890 2640 2720 US/cm 03/24/04 428 1650 1990 624 2690 US/cm 09/22/04 472 1690 1179 2720 1094 US/cm 05/10/05 434 1510 2030 2570 5560 US/cm 10/11/05 576 1930 2430 3020 1700 US/cm 04/24/06 -- 2080 2540 3010 3010 US/cm 10/16/06 -- 2090 2590 3020 2600 US/cm 04/10/07 514 219 252 289 267 US/cm 09/25/07 582 2210 2570 3170 2570 US/cm 05/02/08 45.7 289 270 295 267 US/cm 12/05/08 5390 2490 1410 3470 2200 US/cm 04/16/09 539 3440 2290 2760 2420 US/cm 10/07/09 552 2580 2720 3410 2160 US/cm 04/28/10 439 2220 2270 2640 1840 US/cm 10/05/10 446 2240 2380 3000 630 US/cm 05/10/11 -- 3010 1020 2670 1980 US/cm 10/06/11 447 2620 1290 2980 1270 US/cm 04/16/12 416 3060 2230 2480 1960 US/cm 10/24/12 399 3270 280 2910 2030 US/cm 04/24/13 410 3210 1336 2740 1880 US/cm 09/09/13 414 3280 2370 2900 1840 US/cm 04/22/14 395 3300 2930 2440 2010 US/cm 10/01/14 425 3400 2580 3320 193 US/cm 04/07/15 268 2140 1610 1920 1260 US/cm 10/06/15 304 2341 2017 2424 1239 US/cm 04/18/16 323 2515 1803 1798 1338 us/cm 09/26/16 340 2581 2076 2324 1390 US/cm 04/25/17 362 3197 1039 2454 1286 US/cm 10/16/17 367 3260 1897 2843 1706 US/cm 04/16/18 321 2992 2089 2224 1633 US/cm 10/18/18 317 2662 1985 2146 1363 US/cm 04/08/19 368 3111 895 1301 1813 US/cm 10/09/19 287 2937 1892 2475 1834 US/cm 04/20/20 424 3461 945 1330 1787 US/cm 10/13/20 393 2546 1406 1729 1838 US/cm 04/29/21 425 3558 2169 922 1723 US/cm 10/12/21 345 3001 1955 2305 1682 US/cm 04/19/22 397 3325 2141 1288 1665 US/cm 10/19/22 296 2851 1963 2986 1439 1 of 3 February 2023 19131339.105 TABLE 5 Summary of Groundwater Field Parameters White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Upgradient Well Downgradient Wells MW-13 1-1 1-2 1-3 1-4 Constituent/Parameter Units Date Temperature (Field) °C 03/27/00 14.30 13.95 15.40 14.57 11.62 °C 09/13/00 15.70 17.43 18.05 17.22 17.91 °C 03/12/01 15.04 13.65 15.04 14.75 -- °C 09/13/01 15.73 18.52 18.86 17.28 19.88 °C 03/07/02 14.25 13.33 13.83 14.22 11.08 °C 09/18/02 10.56 12.05 12.80 11.62 12.97 °C 04/15/03 -- 13.83 14.52 15.71 12.16 °C 10/15/03 14.67 16.45 17.50 16.33 17.17 °C 03/24/04 14.42 13.17 14.11 13.72 10.83 °C 09/22/04 16.30 15.95 17.17 15.72 17.61 °C 05/10/05 19.24 17.81 20.04 18.42 20.55 °C 10/11 /05 12.80 18.38 19.14 19.47 19.14 °C 04/24/06 -- 15.69 17.92 17.35 15.53 °C 10/16/06 -- 15.79 16.82 16.15 17.20 °C 04/10/07 14.57 15.93 15.79 16.05 13.48 °C 09/25/07 23.41 22.48 24.49 19.37 21.12 °C 05/02/08 14.55 18.70 21.71 19.93 20.64 °C 12/05/08 14.53 11.64 12.02 12.46 11.01 °C 04/16/09 14.53 14.76 16.12 14.76 13.94 °C 10/07/09 13.65 18.32 19.72 18.38 20.45 °C 04/28/10 14.56 14.70 16.97 13.99 14.56 °C 10/05/10 18.37 18.19 17.54 18.28 17.41 °C 05/10/11 -- 19.77 21.08 19.87 18.46 °C 10/06/11 18.70 20.90 20.23 18.60 19.28 °C 04/16/12 14.07 19.88 22.31 20.35 20.01 °C 10/24/12 12.98 12.90 19.12 20.00 19.20 °C 04/24/13 13.74 16.77 18.17 17.81 11.65 °C 09/09/13 23.09 18.62 25.21 19.86 20.92 °C 04/22/14 16.52 19.69 26.28 21.77 10.79 °C 10/01/14 11.86 17.04 18.64 17.64 18.84 °C 04/07/15 13.96 16.12 15.98 15.68 16.22 °C 10/06/15 15.81 17.01 16.63 14.50 17.89 °C 04/18/16 16.29 18.46 18.34 13.97 16.12 °C 09/26/16 18.06 20.33 23.90 20.57 21.39 °C 04/25/17 14.35 14.78 16.55 15.23 15.11 °C 10/16/17 14.77 15.93 17.89 16.67 18.34 °C 04/16/18 14.3 12.7 14.9 14.9 14.5 °C 10/18/18 16.3 15.9 18.4 16.3 18.7 °C 04/08/19 15.7 13.9 15.5 15.4 14.9 °C 10/09/19 17.7 17.0 20.0 16.5 19.9 °C 04/20/20 15.2 14.5 14.7 14.9 14.8 °C 10/13/20 17.1 16.8 18.1 17.5 18.7 °C 04/29/21 14.8 14.1 15.4 15.4 14.7 °C 10/12/21 15.5 16.6 19.3 17.1 18.1 °C 04/19/22 15.3 14.2 15.9 14.1 13.0 °C 10/19/22 15.2 15.7 16.8 15.8 17.0 Turbidity (Field) NTU 05/10/05 1.01 3.97 250 36.8 574 NTU 10/11/05 10.0 3.02 411 126 551 NTU 04/24/06 -- 7.18 250 39 398 NTU 10/16/06 -- 1.78 200 23.4 493 NTU 04/10/07 -- -- -- -- -- NTU 09/25/07 -- -- -- -- -- NTU 05/02/08 -- -- -- -- -- NTU 12/05/08 4.42 -- -- -- -- NTU 04/16/09 -- -- -- -- -- NTU 10/07/09 -- -- -- -- -- NTU 04/28/10 6.98 35.2 33.8 8.54 199 NTU 10/05/10 3.28 4.63 44.1 10.01 196 NTU 05/10/11 -- -- -- -- -- NTU 10/06/11 6.75 7.00 48.6 21.5 264 NTU 04/16/12 4.28 14.45 30.1 16.84 152 NTU 10/24/12 4.65 13.63 152 11.85 160 NTU 04/24/13 9.00 21.2 61.5 12.33 248 NTU 09/09/13 4.16 5.42 16.03 8.80 63.9 NTU 04/22/14 4.72 19.6 42.1 5.37 48 NTU 10/01/14 5.76 5.14 26 61 11.92 NTU 04/07/15 3.34 24.7 106 6.52 34 NTU 10/06/15 1.62 2.41 54.3 2.96 27.7 NTU 04/18/16 2.01 12.09 40.9 1.05 51 NTU 09/26/16 21.3 2.59 38.5 1.20 14 NTU 04/25/17 10.3 21.4 40.9 1.89 48.9 NTU 10/16/17 3.58 0.58 22.9 3.78 7.04 NTU 04/16/18 2.56 8.37 102 6.37 8.86 NTU 10/18/18 3.07 2.13 19.5 366 15.7 NTU 04/08/19 3.46 7.18 45.0 6.47 17.0 NTU 10/09/19 1.35 1.07 16.7 1.84 9.18 NTU 04/20/20 1.33 9.70 30.9 2.79 31.8 NTU 10/13/20 0.98 9.89 14.9 1.90 23.8 NTU 04/29/21 0.80 4.90 16.0 2.96 9.95 NTU 10/12/21 1.05 3.08 8.24 2.04 9.79 NTU 04/19/22 1.13 7.35 9.55 0.98 9.56 NTU 10/19/22 1.10 2.41 13.4 4.45 9.87 2 of 3 February 2023 19131339.105 TABLE 5 Summary of Groundwater Field Parameters White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Monitoring Reporting Sample Upgradient Well Downgradient Wells MW-13 1-1 1-2 1-3 1-4 Constituent/Parameter Units Date Oxidation Reduction my 05/10/05 -65 -250 -322 -313 -278 Potential (Field) my 10/11/05 197 -78 -26 -54 -7 my 04/24/06 -- 58 -129 -89 -107 my 10/16/06 -- -65 -159 -138 -207 my 04/10/07 -- -- -- -- -- mv 09/25/07 -- -- -- -- -- mv 05/02/08 -- -- -- -- -- mv 12/05/08 105 -- -- -- -- mv 04/16/09 -- -- -- -- -- mv 10/07/09 -- -- -- -- -- mv 04/28/10 288 281 84 108 51 my 10/05/10 244 287 105 123 82 my 05/10/11 -- -- -- -- -- mv 10/06/11 166 185 4 87 -63 my 04/16/12 171 134 33 62 -65 my 10/24/12 127 73 -37 63 -109 my 04/24/13 178 89 -70 49 -102 my 09/09/13 116 106 25 63 -90 my 04/22/14 118 164 92 125 -78 my 10/01/14 109 45 -70 -45 -133 my 04/07/15 50 36 0 16 -73 my 10/06/15 -38.4 123 -12 54 106 my 04/18/16 135 63 6 32 -107 my 09/26/16 42.2 22 -32 20 -59 my 04/25/17 154.9 32.9 -18.0 41.8 -68.0 my 10/16/17 154.1 81.7 -42.2 54.2 -88.4 my 04/16/18 364.8 214.4 47.6 201.6 -108.9 my 10/18/18 158.7 -4.1 -29.7 150.3 -56.2 my 04/08/19 41.2 96.8 -43.8 68.2 -102.4 my 10/09/19 196.3 46.2 10.4 32.0 -118.9 my 04/20/20 91.3 10.8 -10.1 83.7 -134.3 my 10/13/20 39.7 37.4 -28.8 69.2 -110.9 my 04/29/21 188.9 26.4 -20.1 50.0 -118.2 my 10/12/21 222.5 17.2 -30.1 50.2 -102.2 my 04/19/22 179.4 -3.5 -45.2 75.6 -128.6 my 10/19/22 102.3 72.7 0.5 27.4 -96.1 Dissolved Oxygen (Field) mg/L 05/10/05 3.61 0.41 0.23 0.38 0.60 mg/L 10/11/05 5.69 2.21 0.65 0.82 0.42 mg/L 04/24/06 -- 0.60 0.23 0.40 0.18 mg/L 10/16/06 -- 1.10 0.40 0.41 0.14 mg/L 04/10/07 -- -- -- -- -- mg/L 09/25/07 -- -- -- -- -- mg/L 05/02/08 -- -- -- -- -- mg/L 12/05/08 5.01 -- -- -- -- mg/L 04/16/09 -- -- -- -- -- mg/L 10/07/09 -- -- -- -- -- mg/L 04/28/10 6.94 4.89 4.32 1.27 0.08 mg/L 10/05/10 3.49 1.91 2.27 0.55 0.05 mg/L 05/10/11 -- -- -- -- -- mg/L 10/06/11 4.49 1.19 3.38 0.65 0.22 mg/L 04/16/12 4.75 0.97 2.51 1.59 0.61 mg/L 10/24/12 3.75 1.45 0.77 0.90 0.21 mg/L 04/24/13 4.36 1.31 1.75 0.90 0.38 mg/L 09/09/13 5.95 3.46 4.18 2.84 0.41 mg/L 04/22/14 8.69 1.41 3.71 2.94 1.65 mg/L 10/01/14 4.59 1.67 3.42 0.42 0.17 mg/L 04/07/15 5.52 4.83 2.76 3.97 0.91 mg/L 10/06/15 3.80 0.99 1.19 0.69 0.37 mg/L 04/18/16 6.18 1.11 0.98 0.59 0.19 mg/L 09/26/16 4.81 0.50 0.61 0.64 0.14 mg/L 04/25/17 3.65 0.40 2.69 0.60 0.20 mg/L 10/16/17 2.85 0.68 0.51 0.22 0.05 mg/L 04/16/18 3.38 0.47 0.63 0.59 0.16 mg/L 10/18/18 3.55 0.92 1.91 0.39 0.70 mg/L 04/08/19 3.43 0.14 0.84 0.32 1.01 mg/L 10/09/19 2.37 2.98 3.04 0.55 1.33 mg/L 04/20/20 2.89 0.65 1.88 0.36 0.12 mg/L 10/13/20 2.33 0.66 0.75 0.42 0.32 mg/L 04/29/21 1.58 2.23 0.61 0.34 2.49 mg/L 10/12/21 1.37 2.14 3.27 0.45 0.50 mg/L 04/19/22 1.45 0.33 3.16 0.41 0.20 mg/L 10/19/22 1.16 0.40 0.71 0.40 0.76 Notes: S.U. = Standard Units NTU = Nephelometric Turbidity Units uS/cm = microsiemens per centimeter mg/L = milligrams per liter my = Millivolts -- = no data available Data prior to April 2017 provided by S&ME Engineering 3 of 3 February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Antimony ug/L 03/01/00 -- -- 30 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 30 ND ND ND ND ND ND ug/L 03/01/01 -- -- 30 ND ND ND ND ND ND ug/L 09/01/01 -- -- 30 ND ND ND ND ND ND ug/L 03/01/02 -- -- 30 ND ND ND ND ND ND ug/L 09/01/02 -- -- 30 ND ND ND ND ND ND ug/L 04/01/03 -- -- 30 ND ND ND ND ND ND ug/L 10/01/03 -- -- 30 ND ND ND ND ND ND ug/L 03/01/04 -- -- 30 ND ND ND ND ND ND ug/L 09/01/04 -- -- 30 ND ND ND ND ND ND ug/L 05/01/05 -- -- 30 ND ND ND ND ND ND ug/L 10/01/05 -- -- 30 ND ND ND ND ND ND ug/L 04/01/06 -- -- 30 ND ND ND ND ND ND ug/L 10/01/06 -- -- 30 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.68 -- 6 -- ND ND ND ND ND ug/L 12/04/08 0.68 -- 6 -- ND ND ND ND ND ug/L 04/13/09 0.68 -- 6 -- ND ND ND ND ND ug/L 10/20/09 0.073 -- 6 0.461 B 0.185 B 0.351 B 0.346 B 0.337 B -- ug/L 04/30/10 0.22 -- 6 -- ND 0.272 1 0.225 1 0.258 1 ND ug/L 10/11/10 0.22 -- 6 -- 0.329 1 0.254 1 0.233 1 0.221 1 ND ug/L 05/12/11 0.22 -- 6 0.448 1 ND 0.287 1 0.241 1 0.261 1 ND ug/L 10/07/11 1.1 -- 6 ND ND ND 0.287 1 0.24 1 ND ug/L 04/19/12 0.22 -- 6 0.279 1 ND 0.34 1 0.308 1 0.284 1 ND ug/L 10/26/12 0.22 -- 6 ND ND ND ND ND ND ug/L 04/25/13 0.22 -- 6 ND ND ND ND ND ND ug/L 09/12/13 0.22 -- 6 ND 0.344 1 0.28 1 ND ND ND ug/L 04/25/14 0.22 -- 6 0.695 1 1.62 1 0.582 1 0.332 1 0.264 1 ND ug/L 10/02/14 0.22 -- 6 0.526 1 ND 0.378 1 0.268 1 0.267 1 ND ug/L 04/06/15 0.22 -- 6 0.312 1 ND 0.232 1 ND 0.754 1 ND ug/L 10/07/15 0.22 -- 6 0.268 1 ND 0.372 1 0.259 1 ND ND ug/L 04/20/16 0.22 -- 6 0.22 ND ND 0.424 1 0.261 1 ND ug/L 09/26/16 0.22 -- 6 ND ND ND ND 0.479 1 ND ug/L 04/28/17 0.37 -- 6 0.708 1 ND 0.485 1 ND ND ND ug/L 10/17/17 0.37 -- 6 0.455 1 ND 0.490 1 ND 0.654 1 ND ug/L 04/16/18 1.85 -- 6 ND ND ND ND ND ND ug/L 10/18/18 1.85 5.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.74 2.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.74 2.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.74 2.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.74 2.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.74 2.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.74 2.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.74 2.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.52 5.0 -- ND ND ND ND ND ND Arsenic ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND Human Health = 10 ug/L ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND 2.4 1 ND 2.2 1 ND ug/L 12/04/08 2.8 -- 10 -- ND ND ND ND ND ug/L 04/13/09 2.8 -- 10 -- ND ND ND ND ND ug/L 10/20/09 2.8 -- 10 ND ND ND ND ND ND ug/L 04/30/10 2.8 -- 10 -- ND ND ND ND ND ug/L 10/11/10 2.8 -- 10 -- ND ND ND ND ND ug/L 05/12/11 2.8 -- 10 3.04 1 3.39 1 ND ND ND ug/L 10/07/11 2.8 -- 10 ND ND ND ND ND ND ug/L 04/19/12 2.8 -- 10 ND ND 3.12 1 ND ND ND ug/L 10/26/12 2.8 -- 10 ND ND ND ND 5.25 1 ND ug/L 04/25/13 2.8 -- 10 ND ND ND ND ND ND ug/L 09/12/13 5.4 -- 10 ND ND ND ND ND ND ug/L 04/25/14 5.4 -- 10 ND ND ND ND ND ND ug/L 10/02/14 5.4 -- 10 6.11 1 ND ND ND ND ND ug/L 04/06/15 6.8 -- 10 ND ND ND ND ND ND ug/L 10/07/15 6.8 -- 10 ND ND ND ND ND ND ug/L 04/20/16 6.8 -- 10 ND ND ND ND ND ND ug/L 09/26/16 6.8 -- 10 ND ND ND ND ND ND ug/L 04/28/17 6.8 -- 10 ND ND ND ND ND ND ug/L 10/17/17 6.8 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.8 -- 10 ND ND ND 9.17 1 ND ND ug/L 10/18/18 7.6 10 -- ND ND ND ND ND ND ug/L 04/12/19 7.6 10 -- ND ND ND ND ND ND ug/L 10/08/19 7.6 10 -- ND ND ND ND ND ND ug/L 04/20/20 7.6 10 -- ND ND ND ND ND ND ug/L 10/15/20 7.6 10 -- ND ND ND ND ND ND ug/L 04/29/21 7.6 10 -- ND ND ND ND ND ND ug/L 10/14/21 7.6 10 -- ND ND ND ND ND ND ug/L 04/21/22 7.6 10 -- ND ND ND ND ND ND ug/L 10/19/22 6.4 20 -- ND ND ND ND ND ND February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Barium ug/L 03/01/00 -- -- 500 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 500 ND ND ND ND ND ND Human Health = 200 mg/L ug/L 03/01/01 -- -- 500 ND ND ND ND ND ND ug/L 09/01/01 -- -- 500 ND ND ND ND ND ND ug/L 03/01/02 -- -- 500 ND ND ND ND ND ND ug/L 09/01/02 -- -- 500 ND ND ND ND ND ND ug/L 04/01/03 -- -- 500 ND ND ND ND ND ND ug/L 10/01/03 -- -- 500 ND ND ND ND ND ND ug/L 03/01/04 -- -- 500 ND ND ND ND ND ND ug/L 09/01/04 -- -- 500 ND ND ND ND ND ND ug/L 05/01/05 -- -- 500 ND ND ND ND ND ND ug/L 10/01/05 -- -- 500 ND ND ND ND ND ND ug/L 04/01/06 -- -- 500 ND ND ND ND ND ND ug/L 10/01/06 -- -- 500 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- 41.8 1 54.8 1 21.7 1 25.4 1 25.6 1 ND ug/L 09/25/07 -- -- -- 74.5 1 70.9 1 16.8 1 23 1 24 1 ND ug/L 05/05/08 0.2 -- 100 -- 51.2 B 53 B 92.5 B 65.5 B ND ug/L 12/04/08 1 -- 100 -- 35.9 1 21.8 1 27 1 27 1 ND ug/L 04/13/09 4.2 -- 100 -- 53.4 1 44.8 1 41.6 1 42 1 ND ug/L 10/20/09 1 -- 100 68.3 1 36.3 1 21.8 1 27.2 1 26.9 1 ND ug/L 04/30/10 1 -- 100 -- 48.5 1 30.9 1 37.1 1 44.2 1 ND ug/L 10/11/10 1 -- 100 -- 47.1 1 18.8 1 29.3 1 30.6 1 ND ug/L 05/12/11 1 -- 100 77.3 1 39.3 1 40.3 1 35.3 1 37 1 ND ug/L 10/07/11 1 -- 100 74.2 1 76.4 1 21.4 1 42.7 1 32.2 1 ND ug/L 04/19/12 1 -- 100 43.7 1 48.4 1 23.5 1 33.7 1 33.7 1 ND ug/L 10/26/12 1 -- 100 48.2 1 51.2 1 25.2 1 34.8 1 35.1 1 ND ug/L 04/25/13 1 -- 100 57 1 65.1 1 28.5 1 40.8 1 37.8 1 ND ug/L 09/12/13 1 -- 100 56.7 1 40.7 1 25.3 1 31.5 1 33.9 1 ND ug/L 04/25/14 1 -- 100 100 60.8 1 49.3 1 52.7 1 48.8 1 ND ug/L 10/02/14 1 -- 100 112 45.9 1 22.3 1 24.4 1 25.1 1 ND ug/L 04/06/15 1 -- 100 59.3 1 44.3 1 42.2 1 35.5 1 47.3 1 ND ug/L 10/07/15 1 -- 100 85.7 1 46.2 1 28.3 1 319 41 1 ND ug/L 04/20/16 1 -- 100 113 46.3 1 47.5 1 31 1 35.4 1 ND ug/L 09/26/16 1 -- 100 44.8 1 52.8 1 17.6 1 27.9 1 33.9 1 ND ug/L 04/28/17 1 -- 100 46.5 1 45.4 1 59.9 1 50.2 1 45.0 1 ND ug/L 10/17/17 1 -- 100 40.1 1 33.6 1 55.8 1 41.2 1 37.8 1 ND ug/L 04/16/18 1 -- 100 42.9 1 45.4 1 42.1 1 43.9 1 44.1 1 ND ug/L 10/18/18 1.1 10 -- 56.6 57.4 56.4 61.7 61.3 ND ug/L 04/12/19 1.1 10 -- 60.9 64.6 40.0 56.8 56.6 ND ug/L 10/08/19 1.1 10 -- 55.9 49.1 55.1 57.8 60.0 ND ug/L 04/20/20 1.1 10 -- 41.9 48.0 44.2 42.2 40.5 ND ug/L 10/15/20 1.1 10 -- 47.9 48.5 47.3 52.0 52.9 ND ug/L 04/29/21 1.1 10 -- 47.5 42.5 41.6 45.0 41.8 ND ug/L 10/14/21 1.1 10 -- 43.8 41.4 51.2 43.1 44.2 ND ug/L 04/21/22 1.1 10 -- 42.7 51.1 41.4 45.5 43.6 ND ug/L 10/19/22 4.4 10 -- 35 40 37 35 35 ND Beryllium ug/L 03/01/00 -- -- 2 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 2 ND ND ND ND ND ND Acute = 65 ug/L ug/L 03/01/01 -- -- 2 ND ND ND ND ND ND Chronic = 6.5 ug/L ug/L 09/01/01 -- -- 2 ND ND ND ND ND ND ug/L 03/01/02 -- -- 2 ND ND ND ND ND ND ug/L 09/01/02 -- -- 2 ND ND ND ND ND ND ug/L 04/01 /03 -- -- 2 2.4 2.4 2.3 2.3 ND ND ug/L 10/01/03 -- -- 2 ND ND ND ND ND ND ug/L 03/01/04 -- -- 2 ND ND ND ND ND ND ug/L 09/01/04 -- -- 2 ND ND ND ND ND ND ug/L 05/01/05 -- -- 2 ND ND ND ND ND ND ug/L 10/01/05 -- -- 2 ND ND ND ND ND ND ug/L 04/01/06 -- -- 2 ND ND ND ND ND ND ug/L 10/01/06 -- -- 2 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.7 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.1 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.08 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.1 -- 1 0.113 1 ND ND ND ND 0.42 1 ug/L 04/30/10 0.1 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.1 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.1 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.1 -- 1 ND 0.149 1 ND ND ND ND ug/L 04/19/12 0.1 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.1 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.1 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.1 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.1 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.1 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.1 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.1 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.1 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.1 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.13 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.13 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.13 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.16 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.16 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.16 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.16 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.16 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.16 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.16 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.16 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.30 4.0 -- ND ND ND ND ND ND February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Cadmium ug/L 03/01/00 -- -- 1 ND ND ND ND ND ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 1 ND ND ND ND ND ND SW-1 = 3.12 ug/L 03/01/01 -- -- 1 ND ND ND ND ND ND SW-2 = 2.81 ug/L 09/01/01 -- -- 1 1.1 ND ND ND ND ND SW-3 = 2.48 ug/L 03/01/02 -- -- 1 ND ND ND ND ND ND SW-4 = 3.74 ug/L 09/01/02 -- -- 1 ND 1.2 ND ND ND ND SW-5 = 3.17 ug/L 04/01/03 -- -- 1 4.1 3.8 4.0 3.9 ND ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 1 ND ND ND ND ND ND SW-1 = 0.47 ug/L 03/01/04 -- -- 1 1.0 ND 1.0 ND ND ND SW-2 = 0.43 ug/L 09/01/04 -- -- 1 ND ND ND ND ND ND SW-3 = 0.39 ug/L 05/01/05 -- -- 1 ND ND ND ND ND ND SW-4 = 0.56 ug/L 10/01/05 -- -- 1 ND ND ND ND ND ND SW-5 = 0.48 ug/L 04/01/06 -- -- 1 ND ND ND ND ND ND ug/L 10/01/06 -- -- 1 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.5 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.36 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.09 -- 1 -- 0.14 1 0.17 1 0.26 1 0.21 1 ND ug/L 10/20/09 0.36 -- 1 0.477 J ND ND ND ND ND ug/L 04/30/10 0.36 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.36 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.36 -- 1 0.471 J ND ND ND ND ND ug/L 10/07/11 0.36 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.36 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.36 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.36 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.36 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.36 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.36 -- 1 0.661 J ND ND ND ND ND ug/L 04/06/15 0.36 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.36 -- 1 0.784 J ND ND 5.66 ND ND ug/L 04/20/16 0.36 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.36 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.36 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.36 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.36 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.36 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.36 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.36 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.36 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.36 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.36 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.36 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.36 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.44 5.0 -- ND ND ND ND ND ND Chromium ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standard ug/L 09/01/00 -- -- 10 ND ND 25 14 20 ND SW Standard, Acute (ug/L) ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND SW-1 = 643.41 ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND SW-2 = 583.72 ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND SW-3 = 517.90 ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND SW-4 = 763.69 ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND SW-5 = 652.48 ug/L 10/01/03 -- -- 10 ND ND 10 ND ND ND SW Standard, Chronic (ug/L) ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND SW-1 = 83.69 ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND SW-2 = 75.93 ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND SW-3 = 67.37 ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND SW-4 = 99.34 ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND SW-5 = 84.87 ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND 15.0 ND ND ug/L 12/04/08 1 -- 10 -- ND 2.3 1 ND 1.40 1 ND ug/L 04/13/09 0.7 -- 10 -- 1.40 1 1.60 1 1.10 1 1.10 1 ND ug/L 10/20/09 1 -- 10 8.16 1 ND ND ND ND ND ug/L 04/30/10 1 -- 10 -- ND 1.14 1 ND 1.95 1 ND ug/L 10/11/10 1 -- 10 -- 2.52 1 1.00 1.00 1.00 ND ug/L 05/12/11 1 -- 10 4.37 1 ND 1.09 1 ND ND ND ug/L 10/07/11 1 -- 10 6.97 1 6.25 1 1.21 1 3.00 1 ND ND ug/L 04/19/12 1 -- 10 1.11 1 ND ND ND ND ND ug/L 10/26/12 1 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.4 -- 10 1.44 1 2.12 1 ND ND 2.57 1 ND ug/L 09/12/13 1.4 -- 10 ND ND ND ND ND ND ug/L 04/25/14 1.4 -- 10 11.7 ND 4.26 1 1.7 1 ND ND ug/L 10/02/14 1.4 -- 10 20.6 B 2.13 B 13.4 B 2.50 B 2.70 B -- ug/L 04/06/15 1.4 -- 10 3.66 1 ND 3.36 1 ND 3.51 1 ND ug/L 10/07/15 1.4 -- 10 7.93 1 ND ND 66.1 ND ND ug/L 04/20/16 1.4 -- 10 14.6 ND 6.73 1 ND ND ND ug/L 09/26/16 1.4 -- 10 ND ND ND ND ND ND ug/L 04/28/17 1.4 -- 10 ND ND 5.88 1 1.43 1 ND ND ug/L 10/17/17 1.4 -- 10 ND ND 3.94 1 ND ND ND ug/L 04/16/18 1.4 -- 10 1.74 1 ND 1.80 1 ND 1.92 1 ND ug/L 10/18/18 1.4 10 -- ND ND ND ND ND ND ug/L 04/12/19 1.4 10 -- 1.93 1 1.77 1 ND ND 2.09 1 ND ug/L 10/08/19 1.4 10 -- 1.83 1 ND ND ND ND ND ug/L 04/20/20 1.4 10 -- 1.65 1 ND 1.70 1 ND ND ND ug/L 10/15/20 1.4 10 -- 3.09 1 1.64 1 2.85 1 2.29 1 2.22 1 ND ug/L 04/29/21 1.4 10 -- 2.29 1 ND ND ND ND ND ug/L 10/14/21 1.4 10 -- 2.33 1 ND 2.82 1 ND ND ND ug/L 04/21/22 1.4 10 -- 2.03 1 ND 1.80 1 ND ND ND ug/L 10/19/22 1.1 10 -- 1.5 1 ND 1.5 1 ND ND ND February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Cobalt ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND 17 ND ND ND ND ug/L 04/01/03 -- -- 10 14 14 15 14 ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 3.5 J ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND 7.1 J 3.8 J ND ug/L 12/04/08 1.1 -- 10 -- ND ND ND 2.9 J ND ug/L 04/13/09 0.6 -- 10 -- 1.8 J 0.7 J 0.8 J 0.6 J ND ug/L 10/20/09 1.1 -- 10 3.43 J ND ND ND ND ND ug/L 04/30/10 1.1 -- 10 -- ND ND ND 1.98 J ND ug/L 10/11/10 1.1 -- 10 -- ND ND ND ND ND ug/L 05/12/11 1.1 -- 10 3.19 J ND ND ND ND ND ug/L 10/07/11 1.1 -- 10 4.06 J 6.5 J 1.19 J 2.28 J ND ND ug/L 04/19/12 1.1 -- 10 ND ND ND ND ND ND ug/L 10/26/12 1.1 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.1 -- 10 ND 2.03 J ND ND ND ND ug/L 09/12/13 1.1 -- 10 ND ND 1.46 J 1.15 J ND ND ug/L 04/25/14 1.1 -- 10 4.31 J ND 1.91 J ND ND ND ug/L 10/02/14 1.1 -- 10 8.95 J ND 4.56 J 2.46 J 2.45 J ND ug/L 04/06/15 1.1 -- 10 1.73 J ND 2.44 J 1.56 J 2.18 J ND ug/L 10/07/15 1.1 -- 10 4.34 J ND 2.43 J 46.5 1.92 J ND ug/L 04/20/16 1.1 -- 10 7.38 J ND 4.32 J 1.66 J 2.1 J ND ug/L 09/26/16 1.1 -- 10 ND 1.30 J ND ND ND ND ug/L 04/28/17 1.1 -- 10 ND ND 2.31 J ND ND ND ug/L 10/17/17 1.1 -- 10 ND ND 2.94 J ND ND ND ug/L 04/16/18 1.1 -- 10 1.65 J 1.49 J ND 1.30 J 1.32 J ND ug/L 10/18/18 1.4 10 -- ND ND ND ND ND ND ug/L 04/12/19 1.4 10 -- ND 1.40 J ND ND ND ND ug/L 10/08/19 1.4 10 -- ND ND ND ND ND ND ug/L 04/20/20 1.4 10 -- ND ND ND ND ND ND ug/L 10/15/20 1.4 10 -- ND ND ND ND ND ND ug/L 04/29/21 1.4 10 -- ND ND ND ND ND ND ug/L 10/14/21 1.4 10 -- ND ND ND ND ND ND ug/L 04/21/22 1.4 10 -- ND ND ND ND ND ND ug/L 10/19/22 1.4 10 -- ND ND ND ND ND ND Copper ug/L 03/01/00 -- -- 200 ND ND ND ND ND ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 200 ND ND ND ND ND ND SW-1 = 15.46 ug/L 03/01/01 -- -- 200 ND ND ND ND ND ND SW-2 = 13.82 ug/L 09/01/01 -- -- 200 ND ND ND ND ND ND SW-3 = 12.04 ug/L 03/01/02 -- -- 200 ND ND ND ND ND ND SW-4 = 18.82 ug/L 09/01/02 -- -- 200 ND ND ND ND ND ND SW-5 = 15.71 ug/L 04/01/03 -- -- 200 ND ND ND ND ND ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 200 ND ND ND ND ND ND SW-1 = 10.17 ug/L 03/01/04 -- -- 200 ND ND ND ND ND ND SW-2 = 9.18 ug/L 09/01/04 -- -- 200 ND ND ND ND ND ND SW-3 = 8.11 ug/L 05/01/05 -- -- 200 ND ND ND ND ND ND SW-4 = 12.16 ug/L 10/01/05 -- -- 200 ND ND ND ND ND ND SW-5 = 10.32 ug/L 04/01/06 -- -- 200 ND ND ND ND ND ND ug/L 10/01/06 -- -- 200 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- 2.20 J 1.50 J 6.20 J 4.50 J 4.30 J ND ug/L 09/25/07 -- -- -- 11.2 0.6 10.3 8.40 J 10.1 ND ug/L 05/05/08 0.6 -- 10 -- 1.3 J 2.50 J 13.3 3.7 J ND ug/L 12/04/08 1.6 -- 10 -- 20.5 4.60 J 4.30 J 6.40 J ND ug/L 04/13/09 0.81 -- 10 -- 1.93 J 2.56 J 1.87 J 1.78 J ND ug/L 10/20/09 1.6 -- 10 10.7 ND 7.1 J 5.15 J 5.26 J ND ug/L 04/30/10 1.6 -- 10 -- ND 5.90 J 3.30 J 6.33 J ND ug/L 10/11/10 1.6 -- 10 -- 10.2 8.12 J 5.59 J 3.91 J ND ug/L 05/12/11 1.6 -- 10 12.6 ND 3.34 J 2.89 J 3.03 J ND ug/L 10/07/11 1.6 -- 10 8.31 J 5.88 J 4.91 J 6.56 J 3.28 J ND ug/L 04/19/12 1.6 -- 10 2.72 J ND 5.01 J 4.36 J 4.11 J ND ug/L 10/26/12 1.6 -- 10 2.04 J ND 5.47 J 2.22 J 2.71 J ND ug/L 04/25/13 1.6 -- 10 3.43 J 5.01 J 4.46 J 4.33 J 6.16 J ND ug/L 09/12/13 1.6 -- 10 1.94 J ND 1.67 J ND ND ND ug/L 04/25/14 1.6 -- 10 16.7 B 3.46 B 10.5 B 5.92 B 6.29 B -- ug/L 10/02/14 1.6 -- 10 30.9 1.82 J 6.82 J 5.42 J 5.30 J ND ug/L 04/06/15 1.6 -- 10 4.30 J 3.71 J 11.1 5.23 J 8.24 J ND ug/L 10/07/15 1.6 -- 10 11.3 1.6 2.65 J 57.1 2.17 J ND ug/L 04/20/16 1.6 -- 10 21.2 ND 10.8 2.56 J 4.07 J ND ug/L 09/26/16 1.6 -- 10 4.52 J 2.57 J 6.61 J 6.03 J 8.07 J ND ug/L 04/28/17 1.6 -- 10 5.19 J 3.02 J 13.4 4.55 J 4.51 J ND ug/L 10/17/17 1.6 -- 10 3.95 J 1.77 J 9.07 J 2.58 J 2.89 J ND ug/L 04/16/18 1.6 -- 10 4.40 J 4.19 J 4.11 J 5.33 J 3.98 J ND ug/L 10/18/18 1.6 10 -- 3.11 J 3.84 J 2.72 J 2.42 J 3.55 J ND ug/L 04/12/19 1.6 10 -- 3.44 J 5.44 J 5.11 J 3.66 J 4.18 J ND ug/L 10/08/19 1.6 10 -- 2.23 J 1.81 J 2.92 J 2.66 J 1.60 J ND ug/L 04/20/20 1.6 10 -- 4.72 J ND 4.85 J 6.44 J 4.63 J ND ug/L 10/15/20 1.6 10 -- 4.38 J 4.03 J 4.33 J 4.59 J 4.21 J ND ug/L 04/29/21 1.6 10 -- ND ND ND ND ND ND ug/L 10/14/21 1.6 10 -- 1.68 B ND ND 1.82 B ND 2.62 J ug/L 04/21/22 1.6 10 -- ND ND ND ND 2.91 J ND ug/L 10/19/22 3.2 20 -- 3.2 1 ND 3.6 1 ND ND ND February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Lead ug/L 03/01/00 -- -- 10 ND ND 15 ND ND ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 10 ND ND 10 ND ND ND SW-1 = 75.88 ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND SW-2 = 66.69 ug/L 09/01/01 -- -- 10 25 ND ND ND ND ND SW-3 = 56.87 ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND SW-4 = 95.12 ug/L 09/01/02 -- -- 10 ND 86 ND ND ND ND SW-5 = 77.30 ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND SW-1 = 2.96 ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND SW-2 = 2.60 ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND SW-3 = 2.22 ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND SW-4 = 3.71 ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND SW-5 = 3.01 ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 11.2 ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND 14.8 ND ND ug/L 12/04/08 1.9 -- 10 -- ND ND ND ND ND ug/L 04/13/09 1.6 -- 10 -- 2.30 1 2.50 1 1.60 1.60 ND ug/L 10/20/09 1.9 -- 10 8.94 1 ND ND 2.44 1 3.34 J ND ug/L 04/30/10 1.9 -- 10 -- ND ND ND 2.04 1 ND ug/L 10/11/10 1.9 -- 10 -- 5.45 1 1.90 1.90 1.90 ND ug/L 05/12/11 1.9 -- 10 15.4 ND 2.00 1 ND ND ND ug/L 10/07/11 1.9 -- 10 10.0 16.4 ND 3.33 1 ND ND ug/L 04/19/12 1.9 -- 10 ND ND 2.38 1 ND ND ND ug/L 10/26/12 1.9 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.9 -- 10 ND 4.74 J ND ND ND ND ug/L 09/12/13 2.1 -- 10 ND ND ND ND ND ND ug/L 04/25/14 2.1 -- 10 11.2 3.23 1 3.36 1 2.23 1 2.82 1 ND ug/L 10/02/14 2.1 -- 10 ND ND ND ND ND ND ug/L 04/06/15 3.1 -- 10 ND ND ND ND ND ND ug/L 10/07/15 3.1 -- 10 7.02 1 ND ND 93.2 ND ND ug/L 04/20/16 3.1 -- 10 14.6 ND 6.10 1 ND ND ND ug/L 09/26/16 3.1 -- 10 ND ND ND ND ND ND ug/L 04/28/17 3.1 -- 10 ND ND 4.66 1 ND ND ND ug/L 10/17/17 3.1 -- 10 ND ND 3.18 1 ND ND ND ug/L 04/16/18 3.1 -- 10 ND ND ND ND ND ND ug/L 10/18/18 3.1 10 -- ND ND ND ND ND ND ug/L 04/12/19 3.1 10 -- 3.91 1 ND ND ND ND ND ug/L 10/08/19 3.1 10 -- ND ND ND ND ND ND ug/L 04/20/20 3.1 10 -- ND ND ND ND ND ND ug/L 10/15/20 3.1 10 -- ND ND ND ND ND ND ug/L 04/29/21 3.1 10 -- ND ND ND ND ND ND ug/L 10/14/21 3.1 10 -- ND ND ND ND ND ND ug/L 04/21/22 3.1 10 -- ND ND ND ND ND ND ug/L 10/19/22 6.6 10 -- ND ND ND ND ND ND Nickel ug/L 03/01/00 -- -- 50 ND ND ND ND ND ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 50 ND ND 82 65 81 ND SW-1 = 530.88 ug/L 03/01/01 -- -- 50 ND ND ND ND ND ND SW-2 = 480.09 ug/L 09/01/01 -- -- 50 ND ND ND ND ND ND SW-3 = 424.28 ug/L 03/01/02 -- -- 50 ND ND ND ND ND ND SW-4 = 633.69 ug/L 09/01/02 -- -- 50 ND ND ND ND ND ND SW-5 = 538.61 ug/L 04/01/03 -- -- 50 ND ND ND ND ND ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 50 ND ND ND ND ND ND SW-1 = 58.96 ug/L 03/01/04 -- -- 50 ND ND ND ND ND ND SW-2 = 53.32 ug/L 09/01/04 -- -- 50 ND ND ND ND ND ND SW-3 = 47.12 ug/L 05/01/05 -- -- 50 ND ND ND ND ND ND SW-4 = 70.38 ug/L 10/01/05 -- -- 50 ND ND ND ND ND ND SW-5 = 59.82 ug/L 04/01/06 -- -- 50 ND ND ND ND ND ND ug/L 10/01/06 -- -- 50 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND 2.7 1 ND 2.5 1 ND ug/L 09/25/07 -- -- -- ND ND 7.6 1 ND ND ND ug/L 05/05/08 2.0 -- 50 -- 3.5 1 3.9 1 5.5 1 6.7 1 ND ug/L 12/04/08 1.8 -- 50 -- ND 4.3 1 3.8 1 3.2 1 ND ug/L 04/13/09 0.6 -- 50 -- 2.3 1 1.5 1 1.6 1 1.5 1 ND ug/L 10/20/09 1.8 -- 50 2.94 1 ND 2.53 1 1.89 1 ND ND ug/L 04/30/10 1.8 -- 50 -- ND ND ND 2.14 1 ND ug/L 10/11/10 1.8 -- 50 -- 1.80 2.22 1 1.80 1.80 ND ug/L 05/12/11 1.8 -- 50 2.34 1 ND ND 2.57 1 2.66 1 ND ug/L 10/07/11 1.8 -- 50 3.64 1 4.23 1 6.40 1 4.31 1 3.43 1 ND ug/L 04/19/12 1.8 -- 50 ND ND 2.56 1 2.00 1 2.23 1 ND ug/L 10/26/12 1.8 -- 50 ND 1.92 1 5.32 1 5.14 1 5.46 1 ND ug/L 04/25/13 1.8 -- 50 2.38 1 3.30 1 6.20 1 6.96 1 6.85 1 ND ug/L 09/12/13 1.8 -- 50 ND ND 2.09 1 ND ND ND ug/L 04/25/14 1.8 -- 50 4.30 1 2.07 1 7.49 1 5.52 1 5.55 1 ND ug/L 10/02/14 1.8 -- 50 7.25 1 ND 23.7 1 9.96 1 10.6 1 ND ug/L 04/06/15 1.8 -- 50 2.02 1 ND 3.03 1 2.33 1 2.46 1 ND ug/L 10/07/15 1.8 -- 50 3.16 1 ND 6.56 1 22.0 1 3.14 1 ND ug/L 04/20/16 2.2 -- 50 5.60 1 ND 5.02 1 8.54 1 2.88 1 ND ug/L 09/26/16 2.2 -- 50 ND ND 3.54 1 3.34 1 6.44 1 ND ug/L 04/28/17 2.2 -- 50 ND ND 6.02 1 2.83 1 2.62 1 ND ug/L 10/17/17 2.2 -- 50 ND ND ND ND ND ND ug/L 04/16/18 2.2 -- 50 ND ND ND ND ND ND ug/L 10/18/18 2.2 10 -- ND ND ND ND ND ND ug/L 04/12/19 2.2 10 -- ND ND ND ND ND ND ug/L 10/08/19 2.2 10 -- ND ND ND ND 2.40 1 ND ug/L 04/20/20 2.2 10 -- 36.8 ND 3.71 1 ND ND ND ug/L 10/15/20 2.2 10 -- ND ND 3.50 1 ND ND ND ug/L 04/29/21 2.2 10 -- ND ND ND ND ND ND ug/L 10/14/21 2.2 10 -- ND ND ND ND ND ND ug/L 04/21/22 2.2 10 -- ND ND ND ND ND ND ug/L 10/19/22 3.3 40 -- ND ND ND ND ND ND February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Selenium ug/L 03/01/00 -- -- 20 ND ND ND ND ND ND SW Standards ug/L 09/01/00 -- -- 20 ND ND ND ND ND ND Acute = 5 ug/L ug/L 03/01/01 -- -- 20 ND ND ND ND ND ND Chronic = 5 ug/L ug/L 09/01/01 -- -- 20 ND ND ND ND ND ND ug/L 03/01/02 -- -- 20 ND ND ND ND ND ND ug/L 09/01/02 -- -- 20 ND ND ND ND ND ND ug/L 04/01/03 -- -- 20 ND ND ND ND ND ND ug/L 10/01/03 -- -- 20 ND ND ND ND ND ND ug/L 03/01/04 -- -- 20 ND ND ND ND ND ND ug/L 09/01/04 -- -- 20 ND ND ND ND ND ND ug/L 05/01/05 -- -- 20 ND ND ND ND ND ND ug/L 10/01/05 -- -- 20 ND ND ND ND ND ND ug/L 04/01/06 -- -- 20 ND ND ND ND ND ND ug/L 10/01/06 -- -- 20 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND 2.9 1 ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND ND ND ND ND ug/L 12/04/08 2.7 -- 10 -- ND ND ND ND ND ug/L 04/13/09 3.4 -- 10 -- ND ND ND ND ND ug/L 10/20/09 2.7 -- 10 ND ND ND ND ND ND ug/L 04/30/10 0.83 -- 10 -- 1.72 1 0.9 1 0.974 1 1.23 1 ND ug/L 10/11/10 0.83 -- 10 -- 0.83 0.83 0.83 0.875 1 ND ug/L 05/12/11 0.83 -- 10 ND ND ND 1.16 1 0.926 1 ND ug/L 10/07/11 4.15 -- 10 ND ND ND 1.03 1 1.16 1 ND ug/L 04/19/12 0.83 -- 10 ND ND ND ND ND ND ug/L 10/26/12 0.83 -- 10 ND ND ND ND ND ND ug/L 04/25/13 0.83 -- 10 ND ND ND ND ND ND ug/L 09/12/13 0.91 -- 10 ND ND ND ND ND ND ug/L 04/25/14 0.91 -- 10 ND ND ND ND ND ND ug/L 10/02/14 0.91 -- 10 ND ND ND ND ND ND ug/L 04/06/15 0.91 -- 10 ND ND ND ND ND ND ug/L 10/07/15 0.91 -- 10 ND ND ND ND ND ND ug/L 04/20/16 0.91 -- 10 ND ND ND ND ND ND ug/L 09/26/16 0.91 -- 10 ND ND ND ND ND ND ug/L 04/28/17 6.2 -- 10 ND ND ND ND ND ND ug/L 10/17/17 6.2 -- 10 ND ND ND ND ND ND ug/L 04/16/18 6.2 -- 10 ND ND ND ND ND ND ug/L 10/18/18 6.2 10 -- ND ND ND ND ND ND ug/L 04/12/19 6.2 10 -- ND ND ND ND ND ND ug/L 10/08/19 6.2 10 -- ND ND ND ND ND ND ug/L 04/20/20 6.2 10 -- ND ND ND ND ND ND ug/L 10/15/20 6.2 10 -- ND ND ND ND ND ND ug/L 04/29/21 6.2 10 -- ND ND ND ND ND ND ug/L 10/14/21 6.2 10 -- ND ND ND ND ND ND ug/L 04/21/22 6.2 10 -- ND ND ND ND ND ND ug/L 10/19/22 10 20 -- ND ND ND ND ND ND Silver ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND SW-1 = 4.15 ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND SW-2 = 3.38 ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND SW-3 = 2.63 ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND SW-4 = 5.95 ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND SW-5 = 4.28 ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND SW-1 = 0.06 ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND SW-2 = 0.06 ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND SW-3 = 0.06 ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND SW-4 = 0.06 ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND SW-5 = 0.06 ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 2 -- 10 -- ND 2.20 J ND 2.40 J ND ug/L 12/04/08 1.9 -- 10 -- ND ND ND 2.80 J ND ug/L 04/13/09 1.0 -- 10 -- ND ND ND ND ND ug/L 10/20/09 1.9 -- 10 ND ND ND ND ND ND ug/L 04/30/10 1.9 -- 10 -- 2.22 J ND ND ND ND ug/L 10/11/10 1.9 -- 10 -- ND ND ND ND ND ug/L 05/12/11 1.9 -- 10 ND ND ND ND ND ND ug/L 10/07/11 1.9 -- 10 ND ND ND ND ND ND ug/L 04/19/12 1.9 -- 10 ND ND ND ND ND ND ug/L 10/26/12 1.9 -- 10 ND ND ND ND ND ND ug/L 04/25/13 1.9 -- 10 2.06 J ND 1.95 1 2.29 1 2.31 J ND ug/L 09/12/13 1.9 -- 10 ND ND ND ND ND ND ug/L 04/25/14 1.9 -- 10 ND ND ND ND ND ND ug/L 10/02/14 1.9 -- 10 ND ND ND ND ND ND ug/L 04/06/15 1.9 -- 10 ND ND ND ND ND ND ug/L 10/07/15 1.9 -- 10 ND ND 2.74 J ND 2.32 J ND ug/L 04/20/16 1.9 -- 10 ND ND ND ND ND ND ug/L 09/26/16 1.9 -- 10 ND ND ND ND ND ND ug/L 04/28/17 1.9 -- 10 ND ND ND ND ND ND ug/L 10/17/17 1.9 -- 10 ND ND ND ND ND ND ug/L 04/16/18 1.9 -- 10 ND ND ND ND ND ND ug/L 10/18/18 1.9 10 -- ND ND ND ND ND ND ug/L 04/12/19 1.9 10 -- ND ND ND ND ND ND ug/L 10/08/19 1.9 10 -- ND ND ND ND ND ND ug/L 04/20/20 1.9 10 -- ND ND ND ND ND ND ug/L 10/15/20 1.9 10 -- ND ND ND ND ND ND ug/L 04/29/21 1.9 10 -- ND ND ND ND ND ND ug/L 10/14/21 1.9 10 -- ND ND ND ND ND ND ug/L 04/21/22 1.9 10 -- ND ND ND ND ND ND ug/L 10/19/22 1.5 10 -- ND ND ND ND ND ND February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Thallium ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND 12 ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 0.053 1 0.05 1 0.045 1 0.055 1 0.054 1 ND ug/L 05/05/08 0.036 -- 5.5 -- ND ND ND ND ND ug/L 12/04/08 0.036 -- 5.5 -- ND ND ND ND ND ug/L 04/13/09 0.036 -- 5.5 -- ND ND ND ND ND ug/L 10/20/09 0.11 -- 5.5 0.11 0.11 0.11 0.11 0.11 ND ug/L 04/30/10 0.11 -- 5.5 -- ND ND ND ND ND ug/L 10/11/10 0.11 -- 5.5 -- ND ND ND ND ND ug/L 05/12/11 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/07/11 0.55 -- 5.5 ND ND ND ND ND ND ug/L 04/19/12 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/26/12 0.11 -- 5.5 ND ND ND ND ND ND ug/L 04/25/13 0.11 -- 5.5 ND ND ND ND ND ND ug/L 09/12/13 0.11 -- 5.5 ND ND ND ND ND ND ug/L 04/25/14 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/02/14 0.11 -- 5.5 ND ND ND ND ND ND ug/L 04/06/15 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/07/15 0.11 -- 5.5 ND ND ND ND ND ND ug/L 04/20/16 0.11 -- 5.5 ND ND ND ND ND ND ug/L 09/26/16 0.11 -- 5.5 0.190 1 0.124 1 0.205 1 0.187 1 0.316 1 ND ug/L 04/28/17 0.11 -- 5.5 0.389 1 0.267 1 0.261 1 0.287 1 0.205 1 ND ug/L 10/17/17 0.11 -- 5.5 0.819 1 0.655 1 0.698 1 0.840 1 0.425 1 ND ug/L 04/16/18 0.11 -- 5.5 ND ND ND ND ND ND ug/L 10/18/18 0.55 5.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.22 2.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.22 2.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.22 2.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.22 2.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.22 2.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.22 2.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.22 2.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.26 1.0 -- ND ND ND ND ND ND Vanadium ug/L 03/01/00 -- -- 40 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 40 ND ND ND ND ND ND ug/L 03/01/01 -- -- 40 ND ND ND ND ND ND ug/L 09/01/01 -- -- 40 ND ND ND ND ND ND ug/L 03/01/02 -- -- 40 ND ND ND ND ND ND ug/L 09/01/02 -- -- 40 ND 44 ND ND ND ND ug/L 04/01/03 -- -- 40 ND ND ND ND ND ND ug/L 10/01/03 -- -- 40 ND ND ND ND ND ND ug/L 03/01/04 -- -- 40 ND ND ND ND ND ND ug/L 09/01/04 -- -- 40 ND ND ND ND ND ND ug/L 05/01/05 -- -- 40 ND ND ND ND ND ND ug/L 10/01/05 -- -- 40 ND ND ND ND ND ND ug/L 04/01/06 -- -- 40 ND ND ND ND ND ND ug/L 10/01/06 -- -- 40 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- 7.1 1 ND ND 1.5 1 1.2 1 ND ug/L 05/05/08 1 -- 25 -- ND ND 9.3 1 2.4 1 ND ug/L 12/04/08 1.4 -- 25 -- ND ND ND 2.5 1 ND ug/L 04/13/09 0.7 -- 25 -- 4.2 1 2.1 1 2.5 1 2.6 1 ND ug/L 10/20/09 1.4 -- 25 10.7 1 2.19 1 1.81 1 2.79 1 1.86 1 ND ug/L 04/30/10 1.4 -- 25 -- ND ND ND 3.45 1 ND ug/L 10/11/10 1.4 -- 25 -- 8.27 1 3.03 1 2.55 1 2.02 1 ND ug/L 05/12/11 1.4 -- 25 8.52 1 1.90 1 2.35 1 2.27 1 2.42 1 ND ug/L 10/07/11 1.4 -- 25 11.9 1 21.0 1 2.27 1 6.55 1 1.66 1 ND ug/L 04/19/12 1.4 -- 25 2.33 1 ND 1.48 1 1.60 1 1.44 1 ND ug/L 10/26/12 1.4 -- 25 ND ND ND ND ND ND ug/L 04/25/13 1.4 -- 25 2.31 1 5.99 1 ND ND ND ND ug/L 09/12/13 1.4 -- 25 2.11 1 ND 1.70 1 1.53 1 ND ND ug/L 04/25/14 1.4 -- 25 17.9 1 ND 4.7 1 2.25 1 1.60 1 ND ug/L 10/02/14 1.4 -- 25 42.2 ND 3.14 1 2.66 1 2.26 1 ND ug/L 04/06/15 1.4 -- 25 2.34 1 ND 3.33 1 ND 4.62 1 ND ug/L 10/07/15 1.4 -- 25 18.2 1 2.91 1 3.69 1 61.8 3.05 1 ND ug/L 04/20/16 1.4 -- 25 26.9 ND 12.0 1 2.13 1 3.04 1 ND ug/L 09/26/16 1.4 -- 25 1.95 1 ND ND 1.64 1 4.58 1 ND ug/L 04/28/17 1.4 -- 25 2.61 1 1.66 1 8.36 1 2.35 1 2.36 1 ND ug/L 10/17/17 1.4 -- 25 2.42 1 ND 7.92 1 3.42 1 2.88 1 ND ug/L 04/16/18 1.4 -- 25 2.33 1 2.14 1 2.45 1 2.94 1 3.67 1 ND ug/L 10/18/18 1.4 10 -- 1.88 1 2.26 1 1.51 1 1.61 1 1.70 1 ND ug/L 04/12/19 1.4 10 -- 1.54 1 4.16 1 2.39 1 1.78 1 2.09 1 ND ug/L 10/08/19 1.4 10 -- 2.45 1 ND 2.33 1 1.96 1 1.78 1 ND ug/L 04/20/20 1.4 10 -- 1.75 1 ND 2.28 1 2.49 1 1.85 1 ND ug/L 10/15/20 1.4 10 -- ND ND ND ND ND ND ug/L 04/29/21 1.4 10 -- ND ND ND ND ND ND ug/L 10/14/21 1.4 10 -- ND ND ND ND ND ND ug/L 04/21/22 1.4 10 -- ND ND ND ND ND ND ug/L 10/19/22 1.0 10 -- 1.3 1 1.1 1 3.0 1 2.4 1 1.1 1 ND February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Method Practical SWS Downstream Surface Water Detected Constituent Reporting Sample Upstream Surface Water Monitoring Points Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Zinc ug/L 03/01/00 -- -- 50 ND ND 31 58 68 ND SW Standard, Acute (ug/L) ug/L 09/01/00 -- -- 50 ND ND 130 50 60 ND SW-1 = 132.88 ug/L 03/01/01 -- -- 50 ND ND 68 ND 56 ND SW-2 = 120.15 ug/L 09/01/01 -- -- 50 120 ND 60 ND 50 ND SW-3 = 106.16 ug/L 03/01/02 -- -- 50 ND ND 70 50 60 ND SW-4 = 158.66 ug/L 09/01/02 -- -- 50 ND 180 80 ND ND ND SW-5 = 134.82 ug/L 04/01/03 -- -- 50 ND ND ND ND 50 ND SW Standard, Chronic (ug/L) ug/L 10/01/03 -- -- 50 ND ND 120 50 50 ND SW-1 = 133.97 ug/L 03/01/04 -- -- 50 ND ND 52 ND ND ND SW-2 = 121.14 ug/L 09/01/04 -- -- 50 58 ND 56 ND 59 ND SW-3 = 107.03 ug/L 05/01/05 -- -- 50 ND ND ND ND ND ND SW-4 = 159.96 ug/L 10/01/05 -- -- 50 ND ND ND ND ND ND SW-5 = 135.92 ug/L 04/01/06 -- -- 50 ND ND 51.6 ND ND ND ug/L 10/01/06 -- -- 50 ND ND 60.9 ND ND ND ug/L 04/10/07 -- -- -- 7.6 J 23.5 48.4 38.2 39.5 ND ug/L 09/25/07 -- -- -- 84.9 11.4 60.4 36.4 45.7 ND ug/L 05/05/08 1.0 -- 10 -- 5.8 J 6.4 J 154 20.4 ND ug/L 12/04/08 3.8 -- 10 -- 22.4 47.9 35.3 34.6 ND ug/L 04/13/09 3.4 -- 10 -- 24.9 21.4 25.8 27.2 ND ug/L 10/20/09 3.8 -- 10 70.0 7.62 J 45.2 30.9 33.2 ND ug/L 04/30/10 3.8 -- 10 -- 6.64 J 48.1 34.0 54.2 ND ug/L 10/11/10 3.8 -- 10 -- 32.0 30.1 22.8 22.9 ND ug/L 05/12/11 3.8 -- 10 76.2 10.1 33.5 27.7 36.9 ND ug/L 10/07/11 3.8 -- 10 102 62.1 45.0 60.5 32.1 ND ug/L 04/19/12 3.8 -- 10 5.98 J ND 32.0 21.6 22.9 ND ug/L 10/26/12 3.8 -- 10 12.3 5.81 J 25.3 20.3 22.0 ND ug/L 04/25/13 3.8 -- 10 15.0 25.8 42.6 31.6 33.1 ND ug/L 09/12/13 3.8 -- 10 9.73 J ND 29.8 14.9 17.1 ND ug/L 04/25/14 3.8 -- 10 66.3 7.92 J 63.3 37.2 33.7 ND ug/L 10/02/14 3.8 -- 10 144 3.94 J 63.6 34.9 34.0 ND ug/L 04/06/15 3.8 -- 10 16.4 5.33 J 57.3 30.0 51.6 ND ug/L 10/07/15 3.8 -- 10 117 7.88 J 25.2 1020 24.5 ND ug/L 04/20/16 4.4 -- 10 111 ND 95.5 31.5 44.7 ND ug/L 09/26/16 4.4 -- 10 5.08 J 5.21 J 20 16.4 27.7 ND ug/L 04/28/17 4.4 -- 10 11.0 6.98 J 64.8 21.1 20.1 ND ug/L 10/17/17 4.4 -- 10 8.83 J ND 32.5 5.72 J ND ND ug/L 04/16/18 4.4 -- 10 11.4 10.6 10.3 16.3 15.7 ND ug/L 10/18/18 4.4 10 -- 12.9 12.2 11.8 17.5 18.4 ND ug/L 04/12/19 4.4 10 -- 11.6 16.2 13.9 12.1 15.6 ND ug/L 10/08/19 4.4 10 -- 7.17 J ND 6.31 J 6.76 J 7.48 J ND ug/L 04/20/20 4.4 10 -- 27.1 ND 13.6 13.3 10.1 ND ug/L 10/15/20 4.4 10 -- 6.40 J ND 14.5 10.3 11.7 ND ug/L 04/29/21 4.4 10 -- 6.18 J ND 4.48 J 5.98 J 6.52 J ND ug/L 10/14/21 4.4 10 -- 4.54 J ND 4.77 J 10.5 7.25 J ND ug/L 04/21/22 4.4 10 -- 6.67 J 6.19 J 7.15 J 14.6 21.0 ND ug/L 10/19/22 8.7 20 -- ND ND 16 J ND 8.9 J B 42.2 Acetone ug/L 03/01/00 -- -- 100 ND ND ND ND ND -- SW Standard = 2000 ug/L ug/L 09/01/00 -- -- 100 ND ND ND ND ND ND ug/L 03/01/01 -- -- 100 ND ND ND ND ND ND ug/L 09/01/01 -- -- 100 ND ND ND ND ND ND ug/L 03/01/02 -- -- 100 ND ND ND ND ND ND ug/L 09/01/02 -- -- 100 ND ND ND ND ND ND ug/L 04/01/03 -- -- 100 ND ND ND ND ND ND ug/L 10/01/03 -- -- 100 ND ND ND ND ND ND ug/L 03/01/04 -- -- 100 ND ND ND ND ND ND ug/L 09/01/04 -- -- 100 ND ND ND ND ND ND ug/L 05/01/05 -- -- 100 ND ND ND ND ND ND ug/L 10/01/05 -- -- 100 ND ND ND ND ND ND ug/L 04/01/06 -- -- 100 ND ND ND ND ND ND ug/L 10/01/06 -- -- 100 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND 5.3 J 68 J 1.7 J 6.3 J ND ug/L 05/05/08 0.62 -- 100 -- ND ND ND ND ND ug/L 12/04/08 1.5 -- 100 -- 7.9 J 9.1 J 7.6 J 7.8 J ND ug/L 04/13/09 1.5 -- 100 -- ND ND ND ND ND ug/L 10/20/09 1.5 -- 100 ND ND 6.0 J ND 6.2 J ND ug/L 04/30/10 1.5 -- 100 -- 3.0 J 3.5 J 4.6 J 4.1 J ND ug/L 10/11/10 1.5 -- 100 -- ND ND ND ND ND ug/L 05/12/11 1.2 -- 100 9.7 J 7.5 J ND ND ND ND ug/L 10/07/11 1.2 -- 100 ND ND ND ND ND ND ug/L 04/19/12 1.2 -- 100 ND ND ND ND ND ND ug/L 10/26/12 1.2 -- 100 ND 4.4 J ND ND ND ND ug/L 04/25/13 0.96 -- 100 1.0 J 1.0 J ND ND 1.6 J ND ug/L 09/12/13 1.2 -- 100 ND ND ND ND ND ND ug/L 04/25/14 1.2 -- 100 ND ND ND ND ND ND ug/L 10/02/14 1.2 -- 100 ND ND ND ND ND ND ug/L 04/06/15 1.2 -- 100 ND ND ND ND ND ND ug/L 10/07/15 1.2 -- 100 ND ND ND ND ND ND ug/L 04/20/16 1.2 -- 100 ND ND ND ND ND ND ug/L 09/26/16 10 -- 100 ND 11 J ND ND 11 J ND ug/L 04/28/17 10 -- 100 23 B 19 B 19 B 36 B 16 B 33 J ug/L 10/17/17 10 -- 100 ND ND ND ND ND ND ug/L 04/16/18 10 -- 100 ND ND ND ND ND ND ug/L 10/18/18 10 20 -- ND ND ND ND ND ND ug/L 04/12/19 10 20 -- ND ND ND ND ND ND ug/L 10/08/19 10 20 -- ND ND ND ND ND ND ug/L 04/20/20 10 20 -- ND ND ND ND ND ND ug/L 10/15/20 10 20 -- ND ND ND ND ND ND ug/L 04/29/21 10 20 -- ND ND ND ND ND ND ug/L 10/14/21 10 20 -- ND ND ND ND ND 26 ug/L 04/21/22 10 20 -- ND ND ND ND ND ND ug/L 10/19/22 10 20 -- ND ND ND ND ND ND February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Chloroform ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 5 ND ND ND ND ND ND ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 09/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 10/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- 0.16 0.16 2.5 1 0.69 1 0.6 1 ND ug/L 09/25/07 -- -- -- 0.37 1 ND 8.4 1.2 1 1.2 1 ND ug/L 05/05/08 0.2 -- 5 -- ND ND ND ND ND ug/L 12/04/08 0.2 -- 5 -- 0.2 0.58 1 0.2 0.2 ND ug/L 04/13/09 0.2 -- 5 -- ND ND ND ND ND ug/L 10/20/09 0.2 -- 5 ND ND 2.4 1 2.1 1 1.3 1 ND ug/L 04/30/10 0.083 -- 5 -- ND 1.8 1 ND ND ND ug/L 10/11/10 0.2 -- 5 -- 0.2 7.4 2.0 1 2.0 1 ND ug/L 05/12/11 0.7 -- 5 ND ND ND 1 ND ND ND ug/L 10/07/11 0.7 -- 5 ND ND 2.4 1 0.92 1 1.1 1 ND ug/L 04/19/12 0.18 -- 5 ND ND 1.0 1 0.45 1 ND ND ug/L 10/26/12 0.18 -- 5 ND ND 1.2 1 ND ND ND ug/L 04/25/13 0.25 -- 5 ND ND 0.51 1 ND ND ND ug/L 09/12/13 0.18 -- 5 ND ND 1.8 1 0.76 1 0.76 1 ND ug/L 04/25/14 0.18 -- 5 1.6 1 ND 1.7 1 0.46 1 0.58 1 ND ug/L 10/02/14 0.18 -- 5 1.2 1 ND 0.95 1 1.0 1 ND ND ug/L 04/06/15 0.18 -- 5 ND ND 0.49 1 ND ND ND ug/L 10/07/15 0.18 -- 5 ND ND 2.4 1 0.92 1 1.0 1 ND ug/L 04/20/16 0.18 -- 5 ND ND ND ND ND ND ug/L 09/26/16 0.18 -- 5 ND ND 1.6 1 ND ND ND ug/L 04/28/17 0.18 -- 5 ND ND ND ND ND ND ug/L 10/17/17 0.18 -- 5 ND ND ND ND ND ND ug/L 04/16/18 0.18 -- 5 ND ND ND ND ND ND ug/L 10/18/18 0.18 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.18 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.18 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.18 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.18 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.18 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.18 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.18 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.18 1.0 -- ND ND ND ND ND ND Dibromochloromethane ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND No SW Standard ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND uq/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND 0.54 1 ND ND ND ug/L 09/25/07 -- -- -- ND ND 2.8 1 ND ND ND ug/L 05/05/08 0.28 -- 3 -- ND ND ND ND ND ug/L 12/04/08 0.32 -- 3 -- ND ND ND ND ND ug/L 04/13/09 0.32 -- 3 -- ND ND ND ND ND ug/L 10/20/09 0.32 -- 3 ND ND ND ND ND ND ug/L 04/30/10 0.067 -- 3 -- ND ND ND ND ND ug/L 10/11/10 0.32 -- 3 -- 0.32 6.6 1.2 1 4.6 ND ug/L 05/12/11 0.63 -- 3 ND ND ND ND ND ND ug/L 10/07/11 0.63 -- 3 ND ND ND ND ND ND ug/L 04/19/12 0.17 -- 3 ND ND ND ND ND ND ug/L 10/26/12 0.17 -- 3 ND ND ND ND ND ND ug/L 04/25/13 0.49 -- 3 ND ND ND ND ND ND ug/L 09/12/13 0.17 -- 3 ND ND ND ND ND ND ug/L 04/25/14 0.17 -- 3 ND ND ND ND ND ND ug/L 10/02/14 0.17 -- 3 ND ND ND ND ND ND ug/L 04/06/15 0.17 -- 3 ND ND ND ND ND ND ug/L 10/07/15 0.17 -- 3 ND ND ND ND ND ND ug/L 04/20/16 0.17 -- 3 ND ND ND ND ND ND ug/L 09/26/16 0.17 -- 3 ND ND ND ND ND ND ug/L 04/28/17 0.17 -- 3 ND ND ND ND ND ND ug/L 10/17/17 0.17 -- 3 ND ND ND ND ND ND ug/L 04/16/18 0.17 -- 3 ND ND ND ND ND ND ug/L 10/18/18 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.17 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.17 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.17 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.17 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.17 1.0 -- ND ND ND ND ND ND u /L 10/19/22 0.17 1.0 -- ND ND ND ND ND ND February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 1,4-Dichlorobenzene ug/L 03/01/00 -- -- 5 ND ND ND ND ND ND SW Standard = 100 ug/L ug/L 03/01/01 -- -- 5 ND ND ND ND ND ND ug/L 03/01/02 -- -- 5 ND ND ND ND ND ND ug/L 09/01/02 -- -- 5 ND ND ND ND ND ND ug/L 04/01/03 -- -- 5 ND ND ND ND ND ND ug/L 10/01/03 -- -- 5 ND ND ND ND ND ND ug/L 03/01/04 -- -- 5 ND ND ND ND ND ND ug/L 09/01/04 -- -- 5 ND ND ND ND ND ND ug/L 05/01/05 -- -- 5 ND ND ND ND ND ND ug/L 10/01/05 -- -- 5 ND ND ND ND ND ND ug/L 04/01/06 -- -- 5 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.2 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.38 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.38 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.38 -- 1 ND ND ND ND ND ND ug/L 04/30/10 0.1 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.38 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.79 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.79 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.19 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.19 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.14 -- 1 ND ND 0.46 1 ND 0.19 1 ND ug/L 09/12/13 0.19 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.19 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.19 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.19 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.19 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.19 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.19 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.19 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.19 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.19 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.19 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.19 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.19 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.19 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.19 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.19 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.19 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.19 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.19 1.0 -- ND ND ND ND ND ND Chloromethane ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.23 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.34 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.34 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.34 -- 1 ND ND ND ND ND ND ug/L 04/30/10 0.05 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.34 -- 1 -- 0.82 B 0.34 0.34 B 0.62 B 0.43 1 ug/L 05/12/11 0.55 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.55 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.13 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.13 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.44 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.13 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.13 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.13 -- 1 ND ND ND ND ND ND ug/L 04/06/15 0.13 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.13 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.13 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.13 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.13 -- 1 0.42 1 ND ND 0.78 1 0.41 1 ND ug/L 10/17/17 0.13 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.13 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.13 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.13 1.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.13 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.13 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.13 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.13 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.13 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.13 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.13 1.0 -- ND ND ND ND ND ND 10 of 12 February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Method Practical SWS Upstream Surface Water Monitoring Points Downstream Surface Water Detection Quanitation Reporting Monitoring Points Blanks (SW Standard) Units Date Limit Limit Limit SW-1 SW-2 SW-3 SW-4 SW-5 Methylene Chloride ug/L 03/01/00 -- -- 10 ND ND ND ND ND ND No SW Standard ug/L 09/01/00 -- -- 10 ND ND ND ND ND ND ug/L 03/01/01 -- -- 10 ND ND ND ND ND ND ug/L 09/01/01 -- -- 10 ND ND ND ND ND ND ug/L 03/01/02 -- -- 10 ND ND ND ND ND ND ug/L 09/01/02 -- -- 10 ND ND ND ND ND ND ug/L 04/01/03 -- -- 10 ND ND ND ND ND ND ug/L 10/01/03 -- -- 10 ND ND ND ND ND ND ug/L 03/01/04 -- -- 10 ND ND ND ND ND ND ug/L 09/01/04 -- -- 10 ND ND ND ND ND ND ug/L 05/01/05 -- -- 10 ND ND ND ND ND ND ug/L 10/01/05 -- -- 10 ND ND ND ND ND ND ug/L 04/01/06 -- -- 10 ND ND ND ND ND ND ug/L 10/01/06 -- -- 10 ND ND ND ND ND ND ug/L 04/10/07 -- -- -- ND ND ND ND ND ND ug/L 09/25/07 -- -- -- ND ND ND ND ND ND ug/L 05/05/08 0.24 -- 1 -- ND ND ND ND ND ug/L 12/04/08 0.53 -- 1 -- ND ND ND ND ND ug/L 04/13/09 0.53 -- 1 -- ND ND ND ND ND ug/L 10/20/09 0.53 -- 1 ND ND ND ND ND ND ug/L 04/30/10 0.07 -- 1 -- ND ND ND ND ND ug/L 10/11/10 0.53 -- 1 -- ND ND ND ND ND ug/L 05/12/11 0.14 -- 1 ND ND ND ND ND ND ug/L 10/07/11 0.14 -- 1 ND ND ND ND ND ND ug/L 04/19/12 0.23 -- 1 ND ND ND ND ND ND ug/L 10/26/12 0.23 -- 1 ND ND ND ND ND ND ug/L 04/25/13 0.5 -- 1 ND ND ND ND ND ND ug/L 09/12/13 0.23 -- 1 ND ND ND ND ND ND ug/L 04/25/14 0.23 -- 1 ND ND ND ND ND ND ug/L 10/02/14 0.23 -- 1 ND ND ND ND 0.77 1 ND ug/L 04/06/15 0.23 -- 1 ND ND ND ND ND ND ug/L 10/07/15 0.23 -- 1 ND ND ND ND ND ND ug/L 04/20/16 0.23 -- 1 ND ND ND ND ND ND ug/L 09/26/16 0.23 -- 1 ND ND ND ND ND ND ug/L 04/28/17 0.23 -- 1 ND ND ND ND ND ND ug/L 10/17/17 0.23 -- 1 ND ND ND ND ND ND ug/L 04/16/18 0.23 -- 1 ND ND ND ND ND ND ug/L 10/18/18 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/12/19 0.23 1.0 -- ND ND ND ND ND 0.73 1 ug/L 10/08/19 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/15/20 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.23 1.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.23 1.0 -- ND ND ND ND ND ND ug/L 10/19/22 0.23 1.0 -- ND ND ND ND ND ND Xylenes (Total) ug/L 09/25/07 -- -- ND ND ND ND ND ND ug/L 05/05/08 0.67 5 -- ND ND ND ND -- ug/L 12/04/08 0.4 5 -- ND ND ND ND -- ug/L 04/13/09 0.4 5 -- ND ND ND ND -- ug/L 10/20/09 0.4 5 ND ND ND ND ND ND ug/L 04/30/10 0.22 5 -- ND ND ND ND -- ug/L 10/11/10 0.4 5 -- ND ND ND ND ND ug/L 05/12/11 2.1 5 ND ND ND ND ND -- ug/L 10/07/11 2.1 5 ND ND ND ND ND -- ug/L 04/19/12 0.45 5 ND ND ND ND ND -- ug/L 10/26/12 0.45 5 ND ND ND ND ND -- ug/L 04/25/13 0.67 5 ND ND ND ND ND -- ug/L 09/12/13 0.45 5 ND ND ND ND ND -- ug/L 04/25/14 0.45 5 ND ND ND ND ND -- ug/L 10/02/14 0.45 5 ND ND ND ND ND -- ug/L 04/06/15 0.45 5 ND ND ND ND ND -- ug/L 10/07/15 0.45 5 ND ND ND ND ND -- ug/L 04/20/16 0.45 5 ND ND ND ND ND -- ug/L 09/26/16 0.45 5 ND ND ND ND ND -- ug/L 04/28/17 0.45 5 ND ND ND ND ND ND ug/L 10/17/17 0.45 5 ND ND ND ND ND ND ug/L 04/16/18 0.45 5 ND ND ND ND ND ND ug/L 10/18/18 0.45 3 ND ND ND ND ND ND ug/L 04/12/19 0.45 3.0 -- ND ND ND ND ND ND ug/L 10/08/19 0.45 3.0 -- ND ND ND ND ND ND ug/L 04/20/20 0.45 3.0 -- ND ND ND ND 1.5 1 ND ug/L 10/15/20 0.45 3.0 -- ND ND ND ND ND ND ug/L 04/29/21 0.45 3.0 -- ND ND ND ND ND ND ug/L 10/14/21 0.45 3.0 -- ND ND ND ND ND ND ug/L 04/21/22 0.45 3.0 -- ND ND ND ND ND ND u /L 10/19/22 0.45 3.0 -- ND ND ND ND ND ND 11 of 12 February 2023 TABLE 6 19131339.105 Summary of Surface Water Monitoring Results Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent (SW Standard) Reporting Units Sample Date Method Detection Limit Practical Quanitation Limit SWS Reporting Limit Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points Blanks SW-1 SW-2 SW-3 SW-4 SW-5 1,4-Dioxane ug/L 10/18/18 1.2 2.0 -- ND ND ND 2.1 1.5 J ND (SW Standard = 80 ug/L) ug/L 04/12/19 1.2 2.0 -- ND 1.6 J ND ND ND ND ug/L 10/08/19 1.2 2.0 -- ND 1.3 J ND 1.2 J ND ND ug/L 04/20/20 0.80 2.0 -- ND 1.6 J ND 0.89 J 0.91 J ND ug/L 10/15/20 0.80 2.0 -- ND 1.2 J ND ND 1.0 J ND ug/L 04/29/21 0.80 2.0 -- ND 1.7 J ND 1.0 J 0.87 J ND ug/L 10/14/21 0.80 2.0 -- ND 1.4 J ND 0.92 J 1.2 J ND ug/L 04/21/22 0.80 2.0 -- ND 1.7 J ND ND ND ND u /L 10/19/22 0.30 1.0 -- ND 0.69 J ND ND ND ND Notes: B = blank -qualified data Shaded = concentrations above acute standards are shaded Bold = concentrations above chronic standards are bolded Data prior to April 2017 provided by S&ME Engineering # = EPA Action Level * = EPA Secondary MCL Blanks = field, trip and method blanks EPA MCL = United States Environmental Protection Agency Maximum Contaminant Level MDL = laboratory method detection limit ug/L = micrograms per liter mg/L = milligrams per liter nM = nano mols SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting on 01/18/07 -- = no data available or no limit established NC 2L = North Carolina Water Quality Standard ND = not detected above the laboratory detection limit or stated reporting limit J = are estimated values between MDL and PQL. Hardness values collected last during the April 2021 event (mg/L): SW-1 = 116, SW-2 = 103, SW-3 = 89, SW-4 = 143, SW-5 = 118 12 of 12 February 2023 19131339.106 IEll :3I=W/ Summary of Surface Water Field Parameters Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Date SW-1 SW-2 SW-3 SW-4 SW-5 pH (Field) S. U. 03/25/99 7.27 7.26 7.30 -- S. U. 09/23/99 7.15 7.54 6.86 -- -- S. U. 03/27/00 8.06 8.15 7.89 8.19 8.02 S. U. 09/13/00 7.56 7.31 ND 7.25 7.06 S. U. 03/12/01 7.51 7.29 7.29 7.24 7.18 S. U. 09/13/01 7.51 7.51 7.22 7.24 7.18 S. U. 03/07/02 7.20 7.26 7.04 7.20 6.80 S. U. 09/18/02 7.43 7.33 -- 7.36 6.97 S. U. 04/15/03 7.87 7.60 7.61 7.50 7.62 S. U. 10/15/03 7.26 6.80 6.98 7.15 6.99 S. U. 03/24/04 9.50 8.80 8.99 8.63 8.63 S. U. 09/22/04 7.76 7.26 7.61 7.61 7.63 S. U. 05/10/05 9.56 9.41 9.36 9.45 9.28 S. U. 10/11 /05 7.37 7.07 7.19 7.17 7.35 S. U. 04/24/06 7.11 6.99 6.86 7.20 7.38 S. U. 10/16/06 -- -- -- -- -- S. U. 04/10/07 6.24 6.64 6.55 7.02 7.16 S. U. 09/25/07 6.81 7.28 6.28 7.36 7.20 S. U. 05/02/08 -- -- -- -- -- S. U. 12/05/08 -- 7.82 7.56 7.85 7.98 S. U. 04/16/09 -- 8.01 8.13 7.89 7.89 S. U. 10/07/09 -- -- -- -- -- S. U. 04/28/10 -- -- -- -- -- S. U. 10/05/10 -- 8.05 7.65 8.05 7.81 S. U. 05/10/11 7.74 7.74 7.71 7.64 7.54 S. U. 10/06/11 7.21 7.26 6.90 7.22 7.70 S. U. 04/16/12 -- -- -- -- -- S. U. 10/24/ 12 -- -- -- -- -- S. U. 04/24/13 6.97 7.24 6.92 7.16 7.63 S. U. 09/09/13 7.68 8.30 7.59 7.76 7.69 S. U. 04/22/14 7.54 7.29 7.30 7.37 7.02 S. U. 10/01 /14 8.03 8.03 7.88 7.72 7.84 S. U. 04/07/15 8.13 7.77 7.59 7.84 7.79 S. U. 10/06/15 7.27 7.37 7.34 7.62 7.19 S. U. 04/18/16 7.57 7.68 7.56 7.29 7.39 S. U. 09/26/16 7.22 6.75 7.21 7.30 7.34 S. U. 04/25/17 7.41 7.40 7.14 7.28 7.22 S. U. 10/16/17 7.38 6.88 7.07 7.45 7.94 S. U. 04/16/18 7.48 7.38 7.42 7.67 7.38 S. U. 10/18/18 7.49 8.01 7.50 7.43 7.40 S. U. 04/08/19 7.07 6.50 7.69 7.28 7.50 S. U. 10/07/19 7.56 7.07 7.54 7.42 7.50 S. U. 04/20/20 8.00 7.40 7.72 7.88 7.57 S. U. 10/15/20 7.65 7.22 7.76 7.50 7.39 S. U. 04/29/21 7.57 7.46 7.44 7.46 7.44 S. U. 10/14/21 6.33 7.22 7.19 7.62 7.30 S. U. 04/19/22 7.71 7.52 7.53 7.55 7.21 S. U. 10/21 /22 7.44 7.21 7.62 7.50 7.15 Specific Conductance (Field) US/cm 03/25/99 347 155 309 -- -- US/cm 09/23/99 811 123 487 -- -- US/cm 03/27/00 417 186 363 318 315 US/cm 09/13/00 303 233 ND 471 438 US/cm 03/12/01 6919 6145 6145 6393 5960 US/cm 09/13/01 6919 7324 6063 6393 5960 US/cm 03/07/02 420 377 577 561 555 US/cm 09/18/02 248 271 -- 449 469 US/cm 04/15/03 74 254 261 345 325 US/cm 10/15/03 215 256 357 334 340 US/cm 03/24/04 293 253 410 378 379 US/cm 09/22/04 242 223 234 424 1 US/cm 05/10/05 283 271 391 387 390 US/cm 10/11/05 167 215 319 264 269 US/cm 04/24/06 195 182 335 286 404 US/cm 10/16/06 -- -- -- -- -- US/cm 04/10/07 31.9 28.9 43.6 42.9 43.5 US/cm 09/25/07 31.0 13.0 57.0 53.0 54.0 US/cm 05/02/08 -- -- -- -- -- US/cm 12/05/08 -- 31.6 32.6 31.1 29.1 US/cm 04/16/09 -- 19.8 23.8 26.5 24.9 US/cm 10/07/09 -- -- -- -- -- US/cm 04/28/10 -- -- -- -- -- US/cm 10/05/10 -- 27.9 54 38.9 35.7 US/cm 05/10/11 256 209 345 412 405 US/cm 10/06/11 309 218 529 462 446 US/cm 04/16/12 -- -- -- -- -- US/cm 10/24/12 -- -- -- -- -- US/cm 04/24/13 237 242 381 362 380 US/cm 09/09/13 327 266 461 439 448 US/cm 04/22/14 337 275 430 375 420 US/cm 10/01/14 276 228 454 444 441 US/cm 04/07/15 318 255 400 378 423 US/cm 10/06/15 229 151 337 299 284 US/cm 04/18/16 254 183 313 307 300 US/cm 09/26/16 293 214 439 412 427 US/cm 04/25/17 211 198 318 272 1272 US/cm 10/16/17 209 171 211 241 263 US/cm 04/16/18 233 215 234 217 227 US/cm 10/18/18 191 264 159 209 254 US/cm 04/08/19 129 210 158 270 248 US/cm 10/07/19 308 219 290 320 325 US/cm 04/20/20 189 212 194 192 197 US/cm 10/15/20 221 192 216 221 223 US/cm 04/29/21 251 208 228 259 252 US/cm 10/14/21 201 216 260 221 212 US/cm 04/19/22 262 204 202 225 244 US/cm 10/21 /22 162 183 151 158 208 February 2023 19131339.106 hr_1--14=W1 Summary of Surface Water Field Parameters Detected Constituents White Street Landfill - Phase I, Permit No. 41-03 Greensboro, North Carolina Detected Constituent Reporting Sample Upstream Surface Water Monitoring Points Downstream Surface Water Monitoring Points (SW Standard) Units Date SW-1 SW-2 SW-3 SW-4 SW-5 Temperature (Field) °C 03/25/99 11.81 11.22 13.86 -- -- °C 09/23/99 18.45 17.18 21.83 -- -- °C 03/27/00 14.85 15.73 17.17 15.53 14.29 °C 09/13/00 25.27 23.45 -- 24.96 25.53 °C 03/12/01 14.86 16.71 16.71 15.51 16.52 °C 09/13/01 14.86 16.65 16.74 15.51 16.52 °C 03/07/02 12.12 13.02 16.45 14.40 13.20 °C 09/18/02 18.66 16.70 -- 19.05 18.96 °C 04/15/03 21.65 22.24 20.92 20.11 17.23 °C 10/15/03 17.39 18.39 20.06 18.45 20.33 °C 03/24/04 16.00 18.06 17.17 15.83 17.22 °C 09/22/04 22.67 21.95 25.28 24.17 22.95 °C 05/10/05 24.09 22.85 23.97 23.69 21.78 °C 10/11 /05 18.60 18.30 20.60 20.00 19.80 °C 04/24/06 18.30 16.26 18.47 19.05 22.24 °C 10/16/06 -- -- -- -- -- °C 04/10/07 10.55 8.05 12.20 14.82 13.49 °C 09/25/07 17.06 21.61 23.84 18.61 19.48 °C 05/02/08 -- -- -- -- -- °C 12/05/08 -- 7.00 11.30 9.50 8.80 °C 04/16/09 -- 12.20 14.30 14.50 13.20 °C 10/07/09 -- -- -- -- -- °C 04/28/ 10 -- -- -- -- -- °C 10/05/ 10 -- -- -- -- -- °C 05/10/11 19.10 17.50 19.30 19.40 19.50 °C 10/06/ 11 16.16 13.10 19.10 17.80 18.67 °C 04/16/12 -- -- -- -- -- °C 10/24/ 12 -- -- -- -- -- °C 04/24/ 13 16.35 14.24 17.40 16.28 16.20 °C 09/09/ 13 24.70 22.80 25.50 24.80 25.00 °C 04/22/ 14 15.70 12.90 16.80 17.70 15.30 °C 10/01/14 19.33 19.21 21.28 19.92 22.08 °C 04/07/ 15 17.50 16.70 18.50 17.90 16.00 °C 10/06/ 15 18.76 17.11 21.82 20.90 19.20 °C 04/18/16 18.85 18.38 19.83 19.23 18.57 °C 09/26/16 21.60 20.60 23.80 22.50 22.60 °C 04/25/17 21.17 19.60 20.20 20.56 10.05 °C 10/16/17 15.42 15.62 11.55 16.71 16.86 °C 04/16/18 11.75 9.66 8.67 12.24 12.24 °C 10/18/18 14.7 14.9 14.9 13.2 19.8 °C 04/08/19 17.4 15.7 19.1 17.5 19.3 °C 10/07/19 20.0 18.6 19.7 19.8 21.1 °C 04/20/20 16.8 15.7 16.4 15.5 15.3 °C 10/15/20 18.5 17.2 18.1 16.6 15.8 °C 04/29/21 21.3 19.9 17.6 20.5 20.7 °C 10/14/21 20.4 18.7 7.9 19.2 19.8 °C 04/19/22 15.1 12.9 14.7 13.5 13.4 °C 10/21 /22 10.6 8.3 10.3 10.4 9.7 Turbidity (Field) NTU 04/25/17 13.9 7.05 96.5 14.7 9.02 NTU 10/16/17 5.89 2.71 73.8 8.40 5.78 NTU 04/16/18 13.9 12.5 14.6 26.3 22.4 NTU 10/18/18 4.94 4.84 3.77 9.87 5.30 NTU 04/18/19 4.04 26.1 16.5 5.24 7.97 NTU 10/07/19 4.28 3.84 3.61 4.98 3.90 NTU 04/20/20 8.23 3.59 9.71 25.4 9.88 NTU 10/15/20 4.81 3.64 4.86 6.88 6.38 NTU 04/29/21 4.18 4.83 30.4 6.19 6.23 NTU 10/14/21 3.74 7.52 10.1 4.25 7.15 NTU 04/19/22 8.13 6.75 6.57 9.35 9.18 NTU 10/21/22 5.83 4.62 8.80 9.27 7.67 Oxidation Reduction Potential (field) my 04/25/17 69.8 50.6 72.3 79.4 77.3 my 10/16/17 81.7 60.9 174.0 81.3 10.7 my 04/16/18 119.5 95.2 202.0 190.5 115.8 my 10/18/18 115.1 61.7 97.2 143.1 7.9 my 04/08/19 124.5 143.2 5.3 101.8 332.5 my 10/07/19 137.1 17.2 179.6 159.5 170.9 my 04/20/20 179.1 7.7 117.5 144.2 77.8 my 10/15/20 198.9 -2.6 190.0 147.3 70.9 my 04/29/21 115.3 -32.8 236.6 154.1 141.1 my 10/14/21 301.3 -13.1 231.6 171.2 132.2 my 04/19/22 127.2 45.0 90.0 172.8 148.8 my 10/21 /22 107.3 99.5 94.7 92.0 133.7 Dissolved Oxygen (field) mg/L 04/25/17 7.22 7.50 7.44 6.91 7.02 mg/L 10/16/17 8.33 8.08 8.37 8.01 6.90 mg/L 04/16/18 8.01 8.97 7.92 7.18 8.13 mg/L 10/18/18 5.95 10.74 6.99 7.06 5.81 mg/L 04/08/19 6.91 7.94 6.73 7.19 9.47 mg/L 10/07/19 5.32 4.89 5.90 5.03 6.19 mg/L 04/20/20 9.06 9.38 9.07 7.65 7.07 mg/L 10/15/20 7.37 8.20 7.47 8.05 7.72 mg/L 04/29/21 7.34 8.91 7.60 8.04 6.56 mg/L 10/12/21 7.21 8.24 9.31 8.35 6.82 mg/L 04/19/22 7.18 9.70 9.34 8.35 7.35 m /L 10/21 /22 8.76 8.00 9.51 8.19 6.79 Notes: S.U. = Standard Units NTU = Nephelometric Turbidity Units uS/cm = microsiemens per centimeter mg/L = milligram per liter -- = no data available Data prior to April 2017 provided by S&ME Engineering \i1l 2o,_ FIGURES WSP Page 10 Second Semi -Annual 2022 Water Quality Monitoring Report- White Street Landfill - Phase I Project No. GL19131339 City of Greensboro LEGEND ❑ SW-1 SURFACE WATER MONITORING POINT NOTES 1. SURFACE WATER LOCATIONS ARE APPROXIMATE. 2. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. SITE LOCATION MAP NOT TO SCALE 0 1500 3000 1" = 1500' FEET PROJECT WHITE STREET LANDFILL CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE SURFACE WATER LOCATION MAP PROJECT NO. FIGURE 19-131339 0 2 m 3t CD o� co 0 rn I M f E K Z LL SW-3 LOCATED --1600 FT. WEST —4WU �- I . W t5 1 SW-2 LOCATED -500 FT. WEST J '1 11-6 689.69 SN `68! If-!� 681.9 00, 681.96 I�ip 682.41 l mom El " I 680.13 — MSW LANDFILL II-11681.37 0114 ti �` �.' LIMITS OF WASTE ' '- - 681.97 ` MW-3 _ --�,683.63 J�I JJ 692.46 \4 691.75 -r- 700 J.. 710 I� �715:Q1 1 ti 30 CLIENT CITY OF GREENSBORO CONSULTANT SW-4 LOCATED -900 FT. EAST YYYY-MM-DD 2022-11-03 DESIGNED NTT PREPARED SIB REVIEWED RPK APPROVED RPK LEGEND -- -- APPROXIMATE PROPERTY LINE. - — — — — — — — - APPROXIMATE LIMITS OF WASTE EX. TOPOGRAPHIC CONTOURS (2 FT. INTERVALS) ❑ SURFACE WATER MONITORING POINT COMPLIANCE GROUNDWATER MONITORING WELL NES / SENTINEL GROUNDWATER MONITORING WELL 4 NONCOMPLIANCE GROUNDWATER MONITORING WELL 0 LEACHATE SAMPLING LOCATION GROUNDWATER SURFACE CONTOUR APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT NM NOT MEASURED NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET. 3. GROUNDWATER ELEVATIONS MEASURED ON OCTOBER 18-19, 2022. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS" THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL" THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. ELEVATIONS SHOWN IN THIS DRAWING ARE IN FEET ABOVE MEAN SEA LEVEL DATUM ("MEAN SEA LEVEL DATUM" REFERS TO THE NATIONAL GEOTETIC VERTICAL DATUM (NGVD) OF 1929) AND COORDINATES ARE EXPRESSED IN TERMS OF THE STATE PLANE COORDINATE SYSTEM. 7. SURFACE WATER LOCATIONS ARE APPROXIMATE. 8. TOPOGRAPHY PROVIDED BY BRADY SURVEYING CO. FROM AERIAL PHOTOGRAPHY DATED NOVEMBER 9, 1994. TOPOGRAPHY IN VICINITY OF PHASE II AND III LANDFILLS UPDATED BASED ON AERIAL SURVEY DATED JUNE 1, 2020, PROVIDED BY CARTOGRAPHIC AERIAL MAPPING, INC. 9. 7.5 MINUTE USGS QUADRANGLE, MCLEANSVILLE, NORTH CAROLINA, 2016. T pAl 0 %,11 ''' BRIM RO IMP 1 ii' i - 13 KEELY RD °o _ SITE -� l - lk f`' y QUEEN BETy Ll rn \ �'• T (� _� i \� /I (''� \._:' i I 1 1 I I I i I I i SITE LOCATION MAP NOT TO SCALE 0 400 800 t f 1" = 400' FEET PROJECT WHITE STREET LANDFILL CITY OF GREENSBORO GREENSBORO, NORTH CAROLINA TITLE GROUNDWATER SURFACE CONTOUR MAP OCTOBER 18-19, 2022 PROJECT NO. REV. FIGURE 19-131339 0 1 s 0 APPENDIX rl GROUNDWATER AND SURFACE WATER SAMPLING LOGS \\til) GOLDER Project Name: Well ID: _ Well Diameter: Depth to Bottom: Pumping Rate: Equipment: White Street LF ss 2 inches �b-6U feet j"p mUmin. DATE: I r7I R(ZDZZ GROUNDWATER SAMPLING LOG Project No./Phase No.: GL19131339 Sampler(s): Nicolas Tejeda /Johnathan Serencsics Initial Depth to Water: _ ZZ feet Water Column Thickness: 1y feet System Volume: —466 mL Turbidimeter, YSI ProPlus, WL Meter Dedicated BP, MP-15 Sp. Cond. Turb • ®� Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin Pure @ 11 D:;' Weather: 564" Signature: QA/QC Sign Off: Date: A b �� { j zyZZ Date: 1(i, �, \\til) GOLDER Project Name: White Street LF Well ID: Well Diameter: 2 inches Depth to Bottom: Z5 OC feet Pumping Rate: 1�.� tOV mUmin. DATE: ID' lq lWezi GROUNDWATER SAMPLING LOG Project No./Phase No.: GL19131339 Sampler(s): Nicolas Tejeda /Johnathan Serencsics Initial Depth to Water: S,03 feet Water Column Thickness:- feet System Volume: vlt z:? mL Equipment: Turbidimeter, YSI ProPlus, WL Meter Dedicated BP, MP-15 Time kpHSp. Cond. (uS/cm) Turb (NTU) Dis OZ (mg/L) Temp. (°C) ORP (millivolts) DTW (feet) 12Z6�tb ' S' �.s .% - Z 1 0� y'S" o L�. Z Wt ZK-) 0 Opt M3 -S b , t'},Z L . � 1 iZ '5 L.ID i q:TG (,3.4 0,61 I f. i 140 1360 110.0 W�; z, i 0.63 13tL 3 .1 IT5 0 -'� 3 Jqo i 3 YI.t -i b,13 q&T 5"5 VT.0 q. 1 ef i_ 1:3•b 6.q 9.6Z 3�ti t5 6. b,�o 3.2 13 �- Comments (weather conditions, color, type of sample, purge -water management, etc.): Beain Purge @ tZIO Weather: :Z)t�r Signature: QA/OC Sign Off: „E4.4 Vy Date: j btq l �6 ZZ Date: 1 (-3 42 \ / � 6� Z NN1I) GOLDER Project Name: White Street LF Well ID: I .- Well Diameter: 2 inches Depth to Bottom: 2 5, bb feet Pumping Rate: _ 1 1 > ibi7 mUmin. DATE: Jr- 119 (7zzL GROUNDWATER SAMPLING LOG Project No./Phase No.: GL19131339 Sampler(s): Nicolas Tejeda /Johnathan Serencsics Initial Depth to Water: :�X'03 feet Water Column Thickness: 11.117 feet System Volume: � TES mL Equipment: Turbidimeter, YSI ProPlus, WL Meter Dedicated BP, MP-15 Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin Purge @ ) ZIb . �, ltwcb� Ifitn ( .`k i Weather: GJ��unn.� , 7z7t Signature: QA/QC Sign Off: Date: 10)11(167'Z, Date: 10 /22=k \\til) GOLDER Project Name: White Street LF Well ID: T_- 3 Well Diameter: 2 inches Depth to Bottom: 2u.0b feet Pumping Rate: 17,00 mUmin. DATE: t-7II`Oul'z' GROUNDWATER SAMPLING LOG Project No./Phase No.: GL19131339 Sampler(s): Nicolas Tejeda /Johnathan Serencsics Initial Depth to Water: 0u feet Water Column Thickness: ot.0 feet System Volume: -� W mL Equipment: Turbidimeter, YSI ProPlus, WL Meter Dedicated BP. MP-15 Sp. Cond. Dis 02 Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin Purge @ VZA Weather: ,SUS Signature: Date: u l m I�'�2 QA/QC Sign Off: . ` Date: ,21 L l ILo \\til) GOLDER DATE: I uI kq b. -Z,2 GROUNDWATER SAMPLING LOG Project Name: White Street LF Project No./Phase No.: GL19131339 Well ID: _L - 4 Sampler(s): Nicolas Tejeda /Johnathan Serencsics Well Diameter: 2 inches Initial Depth to Water: %.19 feet Depth to Bottom: 1,5. UO feet Water Column Thickness: feet Pumping Rate: )Yy '-d11,p mUmin. System Volume: mL Equipment: Turbidimeter, YSI ProPlus, WL Meter Dedicated BP, MP-15 Sp. Cond. Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin Purge @ I Y L5 Weather: Suvxru , hjg�_ cites Signature: QA/QC Sign Off: Date: Date: �_ \\tiI) GOLDER Project Name: White Street LF Well ID: Mw-)3 Well Diameter: 2 inches Depth to Bottom: LI , p y feet Pumping Rate: Zo mUmin. Equipment: Turbidimeter, YSI Pro Dedicated BP. MP-15 DATE: 10 / \ ;r3 GROUNDWATER SAMPLING LOG Project No./Phase No.: GL19131339 Sampler(s): Nicolas Tejeda /Johnathan Serencsics Initial Depth to Water: z p , � 3 feet Water Column Thickness: y'3.14 feet System Volume: `}+(� mL WL Meter ---__--- Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin Purge @ 1G5 Weather:3,,wt•,i,,,, Signature: QA/QC Sign Off: Date: 10 ; S (zdz) Date: DATE: (6�1,c U -z %%%I)I) G O L D E R SURFACE WATER SAMPLING LOG Project Name: _ Sample ID: _ Sampling Location: Equipment: White Street LF Time IZZ S.U.pH Sp. Cond. US/cm Turb. ntu Dis. 02 mg/L �6 Temp. °C %. ORP my Project No./Phase No.: GL19131339 Sampler(s): Nicolas Tejeda /Johnathan Serencsics YSI, Turbidimeter, hardness Kit k Surface Water Sampling Location Sketch Comments (sample methodology, weather conditions, color, silt, etc.): Signature: Date: (CWz0z'?— QA OA/OC Sign Off: aL Date: In %\til) GOLDER Project Name: _ Sample ID: _ Sampling Location: Equipment: DATE: �c5 ZtlZo zz SURFACE WATER SAMPLING LOG White Street LF Project No./Phase No.: Sampler(�s)`: Nicolas In/Z* Gl - l f- C ClrA'f <* YSI, Turbidimeter, hardness Kit Time pH s.u. Sp. Cond. us/cm Turb. ntu Z Dis. 02 mg/L Temp. 0C 3 ORP my Surface Water Sampli GL19131339 jeda /Johnathan Serencsics v of I J ME Comments (sample methodology, weather conditions, color, silt, etc.): J 61&ty Z (0 w1 tt-- Signature: Location Sketch Date: f b(?i 17 0 2-`' QA/QC Sign Off: Ka2- �Y � Date: I () rL 1 � �;. DATE: % N J) G 4 L D E R SURFACE WATER SAMPLING LOG Project Name: White Street LF Project NoRhase No.: GL19131339 Sample ID: 5W - 3 Sampler(s): Nicolas Tejeda /Johnathan Serencsics Sampling Location: 1"«lR. old -(ycCA*.A u[l A Wh (2- skr�d Equipment: YSI, Turbidimeter, hardness Kit Time lb pH S.U. 6Z Sp. Cond. US/cm Turb. ntu ,`t?jp Dis. 02 mg/L q Temp. oC ORP my ��•� Surface Water Sampling Location Sketch se-e- V art � o l �a� l\ t 1 I prr\U 'VV T(i!4("J'k l Comments (sample methodology, weather conditions, color, silt, etc.): Signature: QA/QC Sign Off: Date: (,�j (t( Z.aLZ Date: NNtil) COLDER DATE: io`2c, L'Z SURFACE WATER SAMPLING LOG Project Name: White Street LF Project No./Phase No.: GL19131339 Sample ID: )w -q Sampler(s): Nicolas Tejeda /Johnathan Serencsics Sampling Location: Jf b (kn(<iw rL tL'A Lx'4AW A-kA dl, r(as NC'-y 2��7 Equipment: YSI, Turbidimeter, hardness Kit Surface Water Sampling Location Sketch Time pH S.U. Sp. Cond. us/cm (S�•2 Turb. ntu Dis. 02 mg/L Temp. aC v �f ORP my �2(� Comments (sample methodology, weather conditions, color, silt, etc.): Signature: QA/QC Sign Off: Date: (dLulZZ— Date: ) 0 2 f / I- 2 DATE: taA2.t( 2UZ2 X% %%)) G O L D E R SURFACE WATER SAMPLING LOG Project Name: White Street LF Project No./Phase No.: GL19131339 Sample ID: Skj—S Sampler(s): Nicolas Tejeda /Johnathan Serencsics Sampling Location: -Lr PhasQ tF , "ay, 5Mw -( Equipment: YSI, Turbidimeter, hardness Kit Time pH S.U. 4.6 Sp. Cond. US/cm Turb. ntu •�� Dis. 02 mg/L Temp. °C ORP my 33 3 Surface Water Sampling Location Sketch SP.► 5- 4- 16� Fkc, � L �- z Comments (sample methodology, weather conditions, color, silt, etc.): Pa rJ' P%05'• Z51 w"11C. Signature: Date: (6 QA/QC Sign Off: Date: APPENDIX OCTOBER 2022 CERTIFICATE -OF - ANALYSIS. CHAIN -OF -CUSTODY FORMS, AND LABORATORY DATA REVIEWS 2�SQ pCCgF ENCO Laboratories 9e0 Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Tuesday, November 15, 2022 Golder Associates, Inc. (G0007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: GL19131339 Task 106, Project Name/Desc: White Street LF-Phase I ENCO Workorder(s): CF14768 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Thursday, October 20, 2022. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Amanda L. Gaines Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 21 PROJECT NARRATIVE Date: November 15, 2022 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase I Lab ID: CF14768 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The 8260D LCS exhibited a high bias for Bromomethane; however, this analyte was not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1-Trichloroethane, 1, 1 -Dichloroethane, 1,1-Dichloroethene, 1,2-Dibromo-3-chloropropane, 1,2-Dichloroethane, 2-Butanone, Acetone, Bromodichloromethane, Carbon tetrachloride, Chloroform, and Vinyl acetate; however, these analytes were not detected in the associated samples. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Amanda Gaines Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 21 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4103-I1 Lab ID: CF34768-01RE3 Sampled: 10/19/22 11:30 Received: 10/20/22 12:15 Parameter EPA 8260D Preparation EPA 503013_MS Hold Date/Time(s) 11/02/22 Prep Date/Time(s) 10/25/22 19:31 Analysis Date/Time(s) 10/27/22 02:11 Client ID: 4103-I2 Lab ID: CF14768-02RE1 Sampled: 10/19/22 14:25 Received: 10/20/22 12:15 Parameter EPA 8260D Preparation EPA 503013_MS Hold Date/Time(s) 11/02/22 Prep Date/Time(s) 10/25/22 19:31 Analysis Date/Time(s) 10/27/22 02:40 Client ID: 4103-I3 Lab ID: CF14768-03RE1 Sampled: 10/19/22 12:42 Received: 10/20/22 12:15 Parameter EPA 8260D Preparation EPA 503013_MS Hold Date/Time(s) 11/02/22 Prep Date/Time(s) 10/25/22 19:31 Analysis Date/Time(s) 10/27/22 03:09 Client ID: 4103-I4 Lab ID: CF14768-04RE1 Sampled: 10/19/22 14:40 Received: 10/20/22 12:15 Parameter EPA 8260D Preparation EPA 503013_MS Hold Date/Time(s) 11/02/22 Prep Date/Time(s) 10/25/22 19:31 Analysis Date/Time(s) 10/27/22 03:38 Client ID: 4303-Trip Blank I Lab ID: CF14768-05 Sampled: 10/19/22 11:30 Received: 10/20/22 12:15 Parameter EPA 8260D Preparation EPA 503013_MS Hold Date/Time(s) 11/02/22 Prep Date/Time(s) 10/24/22 14:45 Analysis Date/Time(s) 10/25/22 08:55 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in lull. I Page 3 Of 21 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4103-I1 Lab ID: CF34768-01RE1 Analvte Results Flag MDL Q Units Method Notes 1,1-Dichloroethane 0.43 J 0.13 1.0 ug/L EPA 8260D 1,4-Dichlorobenzene 6.0 0.19 1.0 ug/L EPA 8260D Benzene 3.9 0.15 1.0 ug/L EPA 8260D Chlorobenzene 14 0.17 1.0 ug/L EPA 8260D Client ID: 4103-I2 Lab ID: CF14768-02RE1 Analvte Results Flag MDL PQL Units Method Notes 1,2-Dichlorobenzene 1.2 0.19 1.0 ug/L EPA 8260D Chlorobenzene 5.5 0.17 1.0 ug/L EPA 8260D Client ID: 4303-I3 Lab ID: CF14768-03RE1 Analvte Results Flag MDL PQL Units Method Notes 1,1-Dichloroethane 2.7 0.13 1.0 ug/L EPA 8260D 1,1-Dichloroethene 1.5 0.21 1.0 ug/L EPA 8260D 1,2-Dichlorobenzene 0.80 1 0.19 1.0 ug/L EPA 8260D 1,4-Dichlorobenzene 4.1 0.19 1.0 ug/L EPA 8260D Chlorobenzene 18 0.17 1.0 ug/L EPA 8260D Vinyl chloride 0.47 J 0.32 1.0 ug/L EPA 8260D Client ID: 4103-I4 Lab ID: CF34768-04RE1 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dichlorobenzene 2.7 0.19 1.0 ug/L EPA 8260D Chlorobenzene 5.0 0.17 1.0 ug/L EPA 8260D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 21 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-I1 Lab Sample ID:CF14768-01 Received: 10/20/22 12:15 Matrix: Ground Water Sampled:10/19/22 11:30 Work Order: CF14768 Project: White Street LF-Phase I Sampled By: Nicolas Tejada/Johnathan Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,1,1-Trichloroethane [71-55-6]^ 0.12 u ug/L 1 0.12 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 u ug/L 1 0.28 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,1,2-Trichloroethane [79-00-5]^ 0.14 u ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,1-Dichloroethane [75-34-3]A 0.43 J ug/L 1 0.13 1.0 2J25025 EPA 8260D 10/27/22 02:11 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY 1,4-Dichlorobenzene [306-46-7]^ 6.0 ug/L 1 0.19 1.0 2J25025 EPA 8260D 10/27/22 02:11 RKY 2-Butanone [78-93-3]^ 1.3 u ug/L 1 1.3 5.0 2125025 EPA 8260D 10/27/22 02:11 RKY 2-Hexanone [591-78-6]^ 0.88 u ug/L 1 0.88 5.0 2125025 EPA 8260D 10/27/22 02:11 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2125025 EPA 8260D 10/27/22 02:11 RKY Acetone [67-64-1]^ 10 u ug/L 1 10 20 2125025 EPA 8260D 10/27/22 02:11 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2125025 EPA 8260D 10/27/22 02:11 RKY Benzene [71-43-2]A 3.9 ug/L 1 0.15 1.0 2J25025 EPA 8260D 10/27/22 02:11 RKY Bromochloromethane [74-97-5]^ 0.48 u ug/L 1 0.48 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Bromomethane [74-83-9]^ 0.14 u ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY QL-02 Carbon disulfide [75-15-0]^ 1.5 u ug/L 1 1.5 5.0 2125025 EPA 8260D 10/27/22 02:11 RKY Carbon tetrachloride [56-23-5]^ 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Chlorobenzene [108-90-7]A 14 ug/L 1 0.17 1.0 2J25025 EPA 8260D 10/27/22 02:11 RKY Chloroethane [75-00-3]^ 0.23 u ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Chloromethane [74-87-3]^ 0.13 u ug/L 1 0.13 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 u ug/L 1 0.20 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Dibromochloromethane [124-48-1]^ 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Dibromomethane [74-95-3]^ 0.27 u ug/L 1 0.27 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Ethylbenzene[100-41-4]^ 0.13 u ug/L 1 0.13 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2125025 EPA 8260D 10/27/22 02:11 RKY Methylene chloride [75-09-2]^ 0.23 u ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Styrene [100-42-5]^ 0.11 u ug/L 1 0.11 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Tetrachloroethene [127-18-4]^ 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 u ug/L 1 0.70 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Vinyl acetate [108-05-4]^ 0.95 u ug/L 1 0.95 5.0 2125025 EPA 8260D 10/27/22 02:11 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2125025 EPA 8260D 10/27/22 02:11 RKY Xylenes (Total) [1330-20-7]^ 0.45 u ug/L 1 0.45 3.0 2125025 EPA 8260D 10/27/22 02:11 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) Of 21 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-Il Lab Sample ID:CF14768-01 Received: 10/20/22 12:15 Matrix: Ground Water Sampled:10/19/22 11:30 Work Order: CF14768 Project: White Street LF-Phase I Sampled By: Nicolas Tejada/lohnathan Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 55 1 50.0 110 % 53-136 2J25025 EPA 6260D 10127122 02:11 RKY Dlbromofluoromethane 55 1 50.0 110 % 67-129 2J25025 EPA 6260D 10127122 02:11 RKY Toluene-d8 53 1 50.0 105 % 59-134 2J25025 EPA 6260D 10127122 02:11 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 21 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-I2 Lab Sample ID:CF14768-02 Received: 10/20/22 12:15 Matrix: Ground Water Sampled:10/19/22 14:25 Work Order: CF14768 Project: White Street LF-Phase I Sampled By: Nicolas Tejada/Johnathan Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,2-Dichlorobenzene [95-50-1]A 1.2 ug/L 1 0.19 1.0 2J25025 EPA 8260D 10/27/22 02:40 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2125025 EPA 8260D 10/27/22 02:40 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2125025 EPA 8260D 10/27/22 02:40 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 u ug/L 1 1.1 5.0 2125025 EPA 8260D 10/27/22 02:40 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2125025 EPA 8260D 10/27/22 02:40 RKY Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 2125025 EPA 8260D 10/27/22 02:40 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Bromoform [75-25-2]A 0.22 u ug/L 1 0.22 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY QL-02 Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2125025 EPA 8260D 10/27/22 02:40 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Chlorobenzene [108-90-7]A 5.5 ug/L 1 0.17 1.0 2J25025 EPA 8260D 10/27/22 02:40 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Iodomethane [74-88-4]A 1.7 u ug/L 1 1.7 5.0 2125025 EPA 8260D 10/27/22 02:40 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 u ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Trichloroethene [79-01-6]A 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Trichlorofluoromethane [75-69-4]A 0.24 u ug/L 1 0.24 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2125025 EPA 8260D 10/27/22 02:40 RKY Vinyl chloride [75-01-4]A 0.32 u ug/L 1 0.32 1.0 2125025 EPA 8260D 10/27/22 02:40 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2125025 EPA 8260D 10/27/22 02:40 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 21 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-I2 Lab Sample ID:CF14768-02 Received: 10/20/22 12:15 Matrix: Ground Water Sampled:10/19/22 14:25 Work Order: CF14768 Project: White Street LF-Phase I Sampled By: Nicolas Tejada/lohnathan Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 106 % 53-136 2J25025 EPA 6260D 10127122 02:40 RKY Dlbromofluoromethane 55 1 50.0 110 % 67-129 2J25025 EPA 6260D 10127122 02:40 RKY Toluene-d8 52 1 50.0 105 % 59-134 2J25025 EPA 6260D 10127122 02:40 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 21 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-I3 Lab Sample ID:CF14768-03 Received: 10/20/22 12:15 Matrix: Ground Water Sampled:10/19/22 12:42 Work Order: CF14768 Project: White Street LF-Phase I Sampled By: Nicolas Tejada/Johnathan Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY 1,1-Dichloroethane [75-34-3]A 2.7 ug/L 1 0.13 1.0 2J25025 EPA 8260D 10/27/22 03:09 RKY 1,1-Dichloroethene [75-35-4]A 1.5 ug/L 1 0.21 1.0 2J25025 EPA 8260D 10/27/22 03:09 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY 1,2-Dichlorobenzene [95-50-1]A 0.80 J ug/L 1 0.19 1.0 2J25025 EPA 8260D 10/27/22 03:09 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY 1,4-Dichlorobenzene [306-46-7]^ 4.1 ug/L 1 0.19 1.0 2J25025 EPA 8260D 10/27/22 03:09 RKY 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 2125025 EPA 8260D 10/27/22 03:09 RKY 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 2125025 EPA 8260D 10/27/22 03:09 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 2125025 EPA 8260D 10/27/22 03:09 RKY Acetone [67-64-1]^ 10 U ug/L 1 10 20 2125025 EPA 8260D 10/27/22 03:09 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 2125025 EPA 8260D 10/27/22 03:09 RKY Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY QL-02 Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 2125025 EPA 8260D 10/27/22 03:09 RKY Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Chlorobenzene [108-90-7]A 18 ug/L 1 0.17 1.0 2J25025 EPA 8260D 10/27/22 03:09 RKY Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Ethylbenzene[100-41-4]^ 0.13 U ug/L 1 0.13 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 2125025 EPA 8260D 10/27/22 03:09 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 2125025 EPA 8260D 10/27/22 03:09 RKY Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 2125025 EPA 8260D 10/27/22 03:09 RKY Vinyl chloride [75-01-4]A 0.47 J ug/L 1 0.32 1.0 2J25025 EPA 8260D 10/27/22 03:09 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 2125025 EPA 8260D 10/27/22 03:09 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 21 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-I3 Lab Sample ID:CF14768-03 Received: 10/20/22 12:15 Matrix: Ground Water Sampled:10/19/22 12:42 Work Order: CF14768 Project: White Street LF-Phase I Sampled By: Nicolas Tejada/lohnathan Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 54 1 50.0 108 % 53-136 2J25025 EPA 6260D 10127122 03:09 RKY Dlbromofluoromethane 53 1 50.0 107 % 67-129 2J25025 EPA 6260D 10127122 03:09 RKY Toluene-d8 54 1 50.0 107 % 59-134 2J25025 EPA 6260D 10127122 03:09 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 of 21 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-I4 Lab Sample ID:CF14768-04 Received: 10/20/22 12:15 Matrix: Ground Water Sampled:10/19/22 14:40 Work Order: CF14768 Project: White Street LF-Phase I Sampled By: Nicolas Tejada/Johnathan Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,1,1-Trichloroethane [71-55-6]^ 0.12 u ug/L 1 0.12 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 u ug/L 1 0.28 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,1,2-Trichloroethane [79-00-5]^ 0.14 u ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY 1,4-Dichlorobenzene [306-46-7]^ 2.7 ug/L 1 0.19 1.0 2J25025 EPA 8260D 10/27/22 03:38 RKY 2-Butanone [78-93-3]^ 1.3 u ug/L 1 1.3 5.0 2125025 EPA 8260D 10/27/22 03:38 RKY 2-Hexanone [591-78-6]^ 0.88 u ug/L 1 0.88 5.0 2125025 EPA 8260D 10/27/22 03:38 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2125025 EPA 8260D 10/27/22 03:38 RKY Acetone [67-64-1]^ 10 u ug/L 1 10 20 2125025 EPA 8260D 10/27/22 03:38 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2125025 EPA 8260D 10/27/22 03:38 RKY Benzene[71-43-2]^ 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Bromochloromethane [74-97-5]^ 0.48 u ug/L 1 0.48 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Bromomethane [74-83-9]^ 0.14 u ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY QL-02 Carbon disulfide [75-15-0]^ 1.5 u ug/L 1 1.5 5.0 2125025 EPA 8260D 10/27/22 03:38 RKY Carbon tetrachloride [56-23-5]^ 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Chlorobenzene [108-90-7]^ 5.0 ug/L 1 0.17 1.0 2J25025 EPA 8260D 10/27/22 03:38 RKY Chloroethane [75-00-3]^ 0.23 u ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Chloromethane [74-87-3]^ 0.13 u ug/L 1 0.13 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 u ug/L 1 0.20 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Dibromochloromethane [124-48-1]^ 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Dibromomethane [74-95-3]^ 0.27 u ug/L 1 0.27 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Ethylbenzene[100-41-4]^ 0.13 u ug/L 1 0.13 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2125025 EPA 8260D 10/27/22 03:38 RKY Methylene chloride [75-09-2]^ 0.23 u ug/L 1 0.23 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Styrene [100-42-5]^ 0.11 u ug/L 1 0.11 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Tetrachloroethene [127-18-4]^ 0.17 u ug/L 1 0.17 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 u ug/L 1 0.70 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Vinyl acetate [108-05-4]^ 0.95 u ug/L 1 0.95 5.0 2125025 EPA 8260D 10/27/22 03:38 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2125025 EPA 8260D 10/27/22 03:38 RKY Xylenes (Total) [1330-20-7]^ 0.45 u ug/L 1 0.45 3.0 2125025 EPA 8260D 10/27/22 03:38 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 Of 21 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-I4 Lab Sample ID:CF14768-04 Received: 10/20/22 12:15 Matrix: Ground Water Sampled:10/19/22 14:40 Work Order: CF14768 Project: White Street LF-Phase I Sampled By: Nicolas Tejada/lohnathan Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 104 % 53-136 2J25025 EPA 6260D 10127122 03:38 RKY Dlbromofluoromethane 55 1 50.0 110 % 67-129 2J25025 EPA 6260D 10127122 03:38 RKY Toluene-d8 52 1 50.0 105 % 59-134 2J25025 EPA 6260D 10127122 0338 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 of 21 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-Trip Blank I Lab Sample ID:CF14768-05 Received: 10/20/22 12:15 Matrix: Water Sampled:10/19/22 11:30 Work Order: CF14768 Project: White Street LF-Phase I Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2124024 EPA 8260D 10/25/22 08:55 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2124024 EPA 8260D 10/25/22 08:55 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2124024 EPA 8260D 10/25/22 08:55 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2124024 EPA 8260D 10/25/22 08:55 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2124024 EPA 8260D 10/25/22 08:55 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2124024 EPA 8260D 10/25/22 08:55 RKY QV-01 Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2124024 EPA 8260D 10/25/22 08:55 RKY Xylenes (Total) [1330-20-7]A 0.45 Ll ug/L 1 0.45 3.0 2124024 EPA 8260D 10/25/22 08:55 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 21 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103-Trip Blank I Lab Sample ID:CF14768-05 Received: 10/20/22 12:15 Matrix: Water Sampled:10/19/22 11:30 Work Order: CF14768 Project: White Street LF-Phase I Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 58 1 50.0 117 % 53-136 2J24024 EPA 6260D 10125122 08:55 RKY Dlbromofluoromethane 61 1 50.0 121 % 67-129 2J24024 EPA 6260D 10125122 08:55 RKY Toluene-d8 55 1 50.0 111 % 59-134 2J24024 EPA 6260D 10125122 08:55 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 21 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2124024 - EPA 5030B MS Blank (2124024-BLK1) Prepared: 10/24/2022 14:45 Analyzed: 10/25/2022 08:26 Analvte Result Flaq POL Units 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 64 u9/L 50.0 128 53-136 Dibromofluoromethane 64 u9/L 50.0 128 67-129 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 15 Of 21 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2124024 - EPA 5030B MS - Continued Blank (2124024-BLK1) Continued Prepared: 10/24/2022 14:45 Analyzed: 10/25/2022 08:26 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 57 u9/L 50.0 114 59-134 LCS (2724024-BS3) Prepared: 10/24/2022 14:45 Analyzed: 10/25/2022 06:32 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 112 75-133 Benzene 20 1.0 ug/L 20.0 98 80-134 Chlorobenzene 19 1.0 ug/L 20.0 93 80-120 Toluene 18 1.0 ug/L 20.0 91 71-120 Trichloroethene 18 1.0 ug/L 20.0 91 74-120 Matrix Spike (2324024-MS1) Prepared: 10/24/2022 14:45 Analyzed: 10/25/2022 07:01 Source: CF15883-08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 98 75-133 Benzene 21 1.0 ug/L 20.0 0.15 U 106 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 100 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 105 74-120 Matrix Spike Dup (2]24024-MSD1) Prepared: 10/24/2022 14:45 Analyzed: 10/25/2022 07:29 Source: CF15883-08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 0.21 U 110 75-133 11 20 Benzene 19 1.0 ug/L 20.0 0.15 U 94 80-134 12 17 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 89 80-120 13 16 Toluene 18 1.0 ug/L 20.0 0.14 U 90 71-120 10 17 Trichloroethene 18 1.0 ug/L 20.0 0.15 U 88 74-120 18 22 Batch Z725025 - EPA 5030E MS Blank (2]25025-BLK3) Prepared: 10/25/2022 19:31 Analyzed: 10/27/2022 00:44 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 21 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2125025 - EPA 5030B MS - Continued Blank (2125025-BLK1) Continued Prepared: 10/25/2022 19:31 Analyzed: 10/27/2022 00:44 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L 4-Bromofluorobenzene 54 ug/L 50.0 109 53-136 Dibromofluoromethane 53 ug/L 50.0 105 67-129 Toluene-d8 52 ug/L 50.0 103 59-134 LCS (2325025-BSI) Prepared: 10/25/2022 19:31 Analyzed: 10/26/2022 22:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 98 75-133 Benzene 18 1.0 ug/L 20.0 90 80-134 Chlorobenzene 18 1.0 ug/L 20.0 91 80-120 Toluene 19 1.0 ug/L 20.0 93 71-120 Trichloroethene 16 1.0 ug/L 20.0 81 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 21 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2125025 - EPA 5030B MS - Continued (� �Eo www.encolabs.com Matrix Spike (2325025-MS3) Prepared: 10/25/2022 19:31 Analyzed: 10/26/2022 23:17 Source: CF15883-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 0.21 U 80 75-133 Benzene 17 1.0 ug/L 20.0 0.15 U 84 80-134 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 90 80-120 Toluene 18 1.0 ug/L 20.0 0.14 U 88 71-120 Trichloroethene 16 1.0 ug/L 20.0 0.15 U 82 74-120 Matrix Spike Dup (2325025-MSD1) Prepared: 10/25/2022 19:31 Analyzed: 10/26/2022 23:46 Source: CF15883-10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 15 1.0 ug/L 20.0 0.21 U 77 75-133 4 20 Benzene 16 1.0 ug/L 20.0 0.15 U 81 80-134 3 17 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 88 80-120 2 16 Toluene 17 1.0 ug/L 20.0 0.14 U 86 71-120 3 17 Trichloroethene 16 1.0 ug/L 20.0 0.15 U 82 74-120 0.5 22 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 Of 21 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QL-02 The associated laboratory control sample exhibited high bias; since the result is ND, there is no impact. QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 of 21 E 0 V 0 V C LLM❑/� �2 0 W U a ❑ LL 0L p N M rLL 2 U V z cc 0 Y o Q LL N p N Z LL ,r0 0�� } Ma O c N uj U) z 0 U LLJ H ❑ r � z ¢ N 0 cc U o m z 9 0 Who`# _0 7CO N 2 H g (+ U E N N _ ❑ E U m C m :ti x ❑ICZ O U r1F-LU -2 r \' iLL, E m U) J C I o e a 8 U � a U m d m � 0 � N C BH a` U x x x x a I HIS a09La' L xlf fit/ 009z° r X X 7C X X F v I I o � 4 O U _ N r C7 0 0 o LLMM W D O N Cf)T 4 O ,, TrR : 7" a a 'm a o[ m � ol U u ? V m C iL fl z C m G ro a N cl -,zt Q m S Lo A [`7 A co z J fn C+ G L7 Q ca CU 0 U LLL666 C v m m 7 p tz D m � 1 m Ci a)G U �J lsb�4 O � V . 3 mm �iF in N V U U 2 Q Q n� �\JJ m ! v v m p m m a cc a n C N g a k � 5-1 m s C m a C m Page 20 of n LO f:l Sample Preservation Verification ENCO Cary ca Work Order: CF14768 Project: White Street LF-Phase I Client: Golder Associates, Inc. (GO007) Project#; GL19131339 Task 106 Logged In: 20-Oct-22 15.48 Logged By: Samantha L Hyatt Preservation Check Performed By: Date/Time; l CF14768-01 Cont Type Pres (pH) Requirement pH Checked I Control pH A "usted Date/Time Reagent Used/Comments I Adiusted A 250mLP+HNO3 1 2 Y N / NA Y / N ! NA CF14768-02 Cont yP Type Pres (pH) Requirement pH Checked 1 Control Date/Time pH Adjusted Adiusted Reagent Used/Comments A 250mLP+HNO3 <2 Y N/ NA Y N NA CF14768-03 Cont Type Pres (pH) Requirement JpH Checked I VN Control pH Adjusted DatelTime \ Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y 1 N/ NA Y I N/ NA CF14768-04 Cont T e YP Pres (pH) requirement pH Checked/ r Control Datemme 1-11 pH Adjusted Adjusted Reagent Used/Comments J A 250mLP+HNO3 . <2 Y 1 N/ NA Y N NA _-1 Rea ent Name lb 1 2 pH Strip ID: Reagent Name ID 3 4 Rea ent Name ID 5 6 C:IELM NTIPrintlwko_Preservation Check. rpt Page 21 of 21 ti% eurofins Environment Testing I ANALYTICAL REPORT C PREPARED FOR Attn: Amanda Gaines Environmental Conservation Laboratories 102 Woodwinds Industrial Ct, Suite A Cary North Carolina 27511 JOB DESCRIPTION CF14768 JOB NUMBER 680-224146-1 Client: Environmental Conservation Laboratories Sample Summary Job ID: 680-224146-1 Project/Site: CF14768 Lab Sample ID 680-224146-1 680-224146-2 680-224146-3 680-224146-4 680-224146-5 Client Sample ID 4103-12 4103-13 4103-14 4103- Trip Blank 1 Matrix Collected Received Ground Water 10/19/22 11:30 10/26/22 08:00 Ground Water 10/19/22 14:25 10/26/22 08:00 Ground Water 10/19/22 12:42 10/26/22 08:00 Ground Water 10/19/22 14:40 10/26/22 08:00 Water 10/19/22 11:30 10/26/22 08:00 Page 2 of 26 1) Method Summary Client: Environmental Conservation Laboratories Project/Site: CF14768 Job ID: 680-224146-1 Method Method Description Protocol 8260D SIM Volatile Organic Compounds (GC/MS) SW846 6010D Metals (ICP) SW846 7470A Mercury (CVAA) SW846 3005A Preparation, Total Recoverable or Dissolved Metals SW846 5030C Purge and Trap SW846 7470A Preparation, Mercury SW846 Protocol References: SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL (850)474-1001 EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 Laboratory EET PEN EET SAV EET SAV EET SAV EET PEN EET SAV Eurofins Savannah Page 3 of 26 11 /15/2022 (Rev. 1) Definitions/Glossary Client: Environmental Conservation Laboratories Job ID: 680-224146-1 Project/Site: CF14768 U Qualifiers Metals Qualifier Qualifier Description J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Glossary Abbreviation These commonly used abbreviations may or may not be present in this report. a Listed under the "Y column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level' MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present IDOL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins Savannah Page 4 of 26 11 /15/2022 (Rev. 1) Case Narrative Client: Environmental Conservation Laboratories Project/Site: CF14768 Job ID: 680-224146-1 Laboratory: Eurofins Savannah Narrative Job Narrative 680-224146-1 REVISION F Job ID: 680-224146-1 The report being provided is a revision of the original report sent on 11/1/2022. The report (revision 1) is being revised due to Client would like report run with todays date. Report revision history F Receipt The samples were received on 10/26/2022 8:00 AM. Unless otherwise noted below, the samples arrived in good condition, and, where required, properly preserved and on ice. The temperature of the cooler at receipt time was 4.5°C GC/MS VOA Method 8260D_SIM: The following samples were diluted to bring the concentration of target analytes within the calibration range: 4103-11 (680-224146-1), 4103-12 (680-224146-2) and 4103-13 (680-224146-3). Elevated reporting limits (RLs) are provided. No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Metals No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Eurofins Savannah Page 5 of 26 11 /15/2022 (Rev. 1) Detection Summary Client: Environmental Conservation Laboratories Job ID: 680-224146-1 Project/Site: CF14768 Client Sample ID: 4103-11 Lab Sample ID: 680-224146-1 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type 1,4-Dioxane 200 5.0 1.5 ug/L 5 8260D SIM Total/NA ' Barium 600 10 4.4 ug/L 1 601OD Total Recoverable Client Sample ID: 4103-12 Lab Sample ID: 680-224146-2 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type 1,4-Dioxane 160 5.0 1.5 ug/L 5 8260D SIM Total/NA Barium 500 10 4.4 ug/L 1 601OD Total Recoverable Client Sample ID: 4103-13 Lab Sample ID: 680-224146-3 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type 1,4-Dioxane 310 10 3.0 ug/L 10 8260D SIM Total/NA Barium 140 10 4.4 ug/L 1 601OD Total Recoverable Chromium 2.0 J 10 1.1 ug/L 1 601OD Total Recoverable Client Sample ID: 4103-14 Lab Sample ID: 680-224146-4 Analyte Result Qualifier RL MDL Unit DII Fac D Method Prep Type 1,4-Dioxane 32 1.0 0.30 ug/L 1 8260D SIM Total/NA Barium 680 10 4.4 ug/L 1 6010D Total Recoverable Chromium 1.8 J 10 1.1 ug/L 1 601OD Total Recoverable Client Sample ID: 4103- Trip Blank 1 Lab Sample ID: 680-224146-5 ENo Detections This Detection Summary does not include radiochemical test results. Page 6 of 26 Eurofins Savannah 11/15/2022 (Rev. 1) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-224146-1 Project/Site: CF14768 Client Sample ID: 4103-11 Lab Sample ID: 680-224146-1 Date Collected: 10/19/22 11:30 Matrix: Ground Water Date Received: 10/26/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane 200 5.0 1.5 ug/L 10/29/2219:14 5 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 79 50 - 150 10129122 19:14 5 Toluene-d8 (Surr) 103 50 - 150 10/29/22 19:14 5 4-Bromofluorobenzene 104 50 - 150 10/29/22 19:14 5 Method: SW846 6010D - Metals (ICP) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Arsenic <6.4 20 6.4 ug/L — 10/28/2212:40 10/31/2219:18 1 Barium 600 10 4.4 ug/L 10/28/2212:40 10/31/2219:18 1 Cadmium <0.44 5.0 0.44 ug/L 10/28/2212:40 10/31/2219:18 1 Chromium <1.1 10 1.1 ug/L 10/28/2212:40 10/31/2219:18 1 Silver <1.5 10 1.5 ug/L 10/28/2212:40 10/31/2219:18 1 Lead <6.6 10 6.6 ug/L 10/28/2212:40 10/31/2219:18 1 Selenium <10 20 10 ug/L 10/28/2212:40 10/31/2219:18 1 Method: SW846 7470A - Mercury (CVAA) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury <0.080 0.20 0.080 ug/L 10/28/2216:46 10/31/2214:58 1 Eurofins Savannah Page 7 of 26 11 /15/2022 (Rev. 1) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-224146-1 Project/Site: CF14768 Client Sample ID: 4103-12 Lab Sample ID: 680-224146-2 Date Collected: 10/19/22 14:25 Matrix: Ground Water Date Received: 10/26/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane 160 5.0 1.5 ug/L 10/29/2219:39 5 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 80 50 - 150 10129122 19:39 5 Toluene-d8 (Surr) 103 50 - 150 10/29/22 19:39 5 4-Bromofluorobenzene 104 50 - 150 10/29/22 19:39 5 Method: SW846 6010D - Metals (ICP) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Arsenic <6.4 20 6.4 ug/L — 10/28/2212:40 10/31/2219:21 1 Barium 500 10 4.4 ug/L 10/28/2212:40 10/31/2219:21 1 Cadmium <0.44 5.0 0.44 ug/L 10/28/2212:40 10/31/2219:21 1 Chromium <1.1 10 1.1 ug/L 10/28/2212:40 10/31/2219:21 1 Silver <1.5 10 1.5 ug/L 10/28/2212:40 10/31/2219:21 1 Lead <6.6 10 6.6 ug/L 10/28/2212:40 10/31/2219:21 1 Selenium <10 20 10 ug/L 10/28/2212:40 10/31/2219:21 1 Method: SW846 7470A - Mercury (CVAA) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury <0.080 0.20 0.080 ug/L 10/28/2216:46 10/31/2215:00 1 Eurofins Savannah Page 8 of 26 11 /15/2022 (Rev. 1) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-224146-1 Project/Site: CF14768 Client Sample ID: 4103-13 Lab Sample ID: 680-224146-3 Date Collected: 10/19/22 12:42 Matrix: Ground Water Date Received: 10/26/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane 310 10 3.0 ug/L 10/29/22 21:45 10 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 79 50 - 150 10129122 21:45 10 Toluene-d8 (Surr) 105 50 - 150 10/29/22 21:45 10 4-Bromofluorobenzene 105 50 - 150 10/29/22 21:45 10 Method: SW846 6010D - Metals (ICP) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Arsenic <6.4 20 6.4 ug/L — 10/28/2212:40 10/31/2219:24 1 Barium 140 10 4.4 ug/L 10/28/2212:40 10/31/2219:24 1 Cadmium <0.44 5.0 0.44 ug/L 10/28/2212:40 10/31/2219:24 1 Chromium 2.0 J 10 1.1 ug/L 10/28/2212:40 10/31/2219:24 1 Silver <1.5 10 1.5 ug/L 10/28/2212:40 10/31/2219:24 1 Lead <6.6 10 6.6 ug/L 10/28/2212:40 10/31/2219:24 1 Selenium <10 20 10 ug/L 10/28/2212:40 10/31/2219:24 1 Method: SW846 7470A - Mercury (CVAA) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury <0.080 0.20 0.080 ug/L 10/28/2216:46 10/31/2215:03 1 Eurofins Savannah Page 9 of 26 11 /15/2022 (Rev. 1) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-224146-1 Project/Site: CF14768 Client Sample ID: 4103-14 Lab Sample ID: 680-224146-4 Date Collected: 10/19/22 14:40 Matrix: Ground Water Date Received: 10/26/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane 32 1.0 0.30 ug/L 10/29/2217:59 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 79 50 - 150 10129122 17:59 1 Toluene-d8 (Surr) 103 50 - 150 10/29/22 17:59 1 4-Bromofluorobenzene 105 50 - 150 10/29/22 17:59 1 Method: SW846 6010D - Metals (ICP) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Arsenic <6.4 20 6.4 ug/L — 10/28/2212:40 10/31/2219:27 1 Barium 680 10 4.4 ug/L 10/28/2212:40 10/31/2219:27 1 Cadmium <0.44 5.0 0.44 ug/L 10/28/2212:40 10/31/2219:27 1 Chromium 1.8 J 10 1.1 ug/L 10/28/2212:40 10/31/2219:27 1 Silver <1.5 10 1.5 ug/L 10/28/2212:40 10/31/2219:27 1 Lead <6.6 10 6.6 ug/L 10/28/2212:40 10/31/2219:27 1 Selenium <10 20 10 ug/L 10/28/2212:40 10/31/2219:27 1 Method: SW846 7470A - Mercury (CVAA) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury <0.080 0.20 0.080 ug/L 10/28/2216:46 10/31/2215:10 1 Eurofins Savannah Page 10 of 26 11/15/2022 (Rev. 1) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-224146-1 Project/Site: CF14768 Client Sample ID: 4103- Trip Blank 1 Lab Sample ID: 680-224146-5 Date Collected: 10/19/22 11:30 Matrix: Water Date Received: 10/26/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane <0.30 1.0 0.30 ug/L 10/29/2215:03 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 78 50 - 150 10129122 15:03 1 Toluene-d8 (Surr) 102 50 - 150 10/29/22 15:03 1 4-Bromofluorobenzene 104 50 - 150 10/29/22 15:03 1 F Eurofins Savannah Page 11 of 26 11/15/2022 (Rev. 1) QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14768 Method: 8260D SIM - Volatile Organic Compounds (GC/MS) Lab Sample ID: MB 400-598354/6 Matrix: Water Analysis Batch: 598354 MB MB Analyte Result Qualifier RL MDL Unit 1,4-Dioxane <0.30 1.0 0.30 ug/L Job ID: 680-224146-1 Client Sample ID: Method Blank Prep Type: Total/NA D Prepared Analyzed Dil Fac 10/29/2212:58 1 ■:1 MB MB Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 79 50 - 150 10129122 12:58 1 Toluene-d8 (Surr) 104 50 - 150 10129122 12:58 1 4-Bromofluorobenzene 105 50 - 150 10129122 12:58 1 Lab Sample ID: LCS 400-598354/1004 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 598354 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits 1,4-Dioxane 10.0 9.84 ug/L 98 50 -150 LCS LCS Surrogate %Recovery Qualifier Limits Dibromofluoromethane 77 50 - 150 Toluene-d8 (Surr) 108 50 - 150 4-Bromofluorobenzene 105 50 - 150 Method: 6010D - Metals (ICP) Lab Sample ID: MB 680-747600/1-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total Recoverable Analysis Batch: 748082 Prep Batch: 747600 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Arsenic <6.4 20 6.4 ug/L 10/28/2212:40 10/31/2218:45 1 Barium <4.4 10 4.4 ug/L 10/28/2212:40 10/31/2218:45 1 Cadmium <0.44 5.0 0.44 ug/L 10/28/2212:40 10/31/2218:45 1 Chromium <1.1 10 1.1 ug/L 10/28/2212:40 10/31/2218:45 1 Silver <1.5 10 1.5 ug/L 10/28/2212:40 10/31/2218:45 1 Lead <6.6 10 6.6 ug/L 10/28/2212:40 10/31/2218:45 1 Selenium <10 20 10 ug/L 10/28/2212:40 10/31/2218:45 1 Lab Sample ID: LCS 680-747600/2-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total Recoverable Analysis Batch: 748082 Prep Batch: 747600 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits Arsenic 100 96.9 ug/L 97 80 -120 Barium 100 101 ug/L 101 80-120 Cadmium 50.0 49.8 ug/L 100 80 -120 Chromium 100 101 ug/L 101 80 -120 Silver 50.0 46.8 ug/L 94 80 -120 Lead 505 493 ug/L 98 80-120 Selenium 100 95.1 ug/L 95 80 -120 Eurofins Savannah Page 12 of 26 11/15/2022 (Rev. 1) QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14768 Method: 7470A - Mercury (CVAA) Lab Sample ID: MB 680-747653/1-A Matrix: Water Analysis Batch: 748008 MB MB Analyte Result Qualifier Mercury <0.080 Lab Sample ID: LCS 680-747653/2-A Matrix: Water Analysis Batch: 748008 Spike Analyte Added Mercury 2.50 F Job ID: 680-224146-1 Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 747653 RL MDL Unit D Prepared Analyzed Dil Fac 0.20 0.080 ug/L 10/28/2216:46 10/31/2214:09 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 747653 LCS LCS %Rec Result Qualifier Unit D %Rec Limits 2.30 ug/L 92 80 -120 Eurofins Savannah Page 13 of 26 11/15/2022 (Rev. 1) QC Association Summary Client: Environmental Conservation Laboratories Job ID: 680-224146-1 Project/Site: CF14768 GC/MS VOA Analysis Batch: 598354 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224146-1 4103-11 Total/NA Ground Water 8260D SIM 680-224146-2 4103-12 Total/NA Ground Water 8260D SIM 680-224146-3 4103-13 Total/NA Ground Water 8260D SIM 680-224146-4 4103-14 Total/NA Ground Water 8260D SIM 680-224146-5 4103- Trip Blank 1 Total/NA Water 8260D SIM MB 400-598354/6 Method Blank Total/NA Water 8260D SIM LCS 400-598354/1004 Lab Control Sample Total/NA Water 8260D SIM Metals Prep Batch: 747600 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224146-1 4103-11 Total Recoverable Ground Water 3005A 680-224146-2 4103-12 Total Recoverable Ground Water 3005A 680-224146-3 4103-13 Total Recoverable Ground Water 3005A 680-224146-4 4103-14 Total Recoverable Ground Water 3005A MB 680-747600/1-A Method Blank Total Recoverable Water 3005A LCS 680-747600/2-A Lab Control Sample Total Recoverable Water 3005A Prep Batch: 747653 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224146-1 4103-11 Total/NA Ground Water 7470A 680-224146-2 4103-12 Total/NA Ground Water 7470A 680-224146-3 4103-13 Total/NA Ground Water 7470A 680-224146-4 4103-14 Total/NA Ground Water 7470A MB 680-747653/1-A Method Blank Total/NA Water 7470A LCS 680-747653/2-A Lab Control Sample Total/NA Water 7470A Analysis Batch: 748008 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224146-1 4103-11 Total/NA Ground Water 7470A 747653 680-224146-2 4103-12 Total/NA Ground Water 7470A 747653 680-224146-3 4103-13 Total/NA Ground Water 7470A 747653 680-224146-4 4103-14 Total/NA Ground Water 7470A 747653 MB 680-747653/1-A Method Blank Total/NA Water 7470A 747653 LCS 680-747653/2-A Lab Control Sample Total/NA Water 7470A 747653 Analysis Batch: 748082 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224146-1 4103-11 Total Recoverable Ground Water 6010D 747600 680-224146-2 4103-12 Total Recoverable Ground Water 6010D 747600 680-224146-3 4103-13 Total Recoverable Ground Water 6010D 747600 680-224146-4 4103-14 Total Recoverable Ground Water 6010D 747600 MB 680-747600/1-A Method Blank Total Recoverable Water 6010D 747600 LCS 680-747600/2-A Lab Control Sample Total Recoverable Water 6010D 747600 Eurofins Savannah Page 14 of 26 11/15/2022 (Rev. 1) Lab Chronicle Client: Environmental Conservation Laboratories Job ID: 680-224146-1 Project/Site: CF14768 Client Sample ID: 4103-11 Lab Sample ID: 680-224146-1 Date Collected: 10/19/22 11:30 Matrix: Ground Water Date Received: 10/26/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 5 5 mL 5 mL 598354 10/29/22 19:14 AGW EET PEN Instrument ID: Curie Total Recoverable Prep 3005A 50 mL 50 mL 747600 10/28/22 12:40 RR EET SAV Total Recoverable Analysis 6010D 1 748082 10/31/22 19:18 BJB EET SAV Instrument ID: ICPH Total/NA Prep 7470A 50 mL 50 mL 747653 10/28/22 16:46 JKL EET SAV • Total/NA Analysis 7470A 1 748008 10/31/22 14:58 BCB EET SAV Instrument ID: QuickTrace2 Client Sample ID: 4103-12 Lab Sample ID: 680-224146-2 Date Collected: 10/19/22 14:25 Matrix: Ground Water Date Received: 10/26/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 5 5 mL 5 mL 598354 10/29/22 19:39 AGW EET PEN Instrument ID: Curie Total Recoverable Prep 3005A 50 mL 50 mL 747600 10/28/22 12:40 RR EET SAV Total Recoverable Analysis 6010D 1 748082 10/31/22 19:21 BJB EET SAV Instrument ID: ICPH Total/NA Prep 7470A 50 mL 50 mL 747653 10/28/22 16:46 JKL EET SAV Total/NA Analysis 7470A 1 748008 10/31/22 15:00 BCB EET SAV Instrument ID: QuickTrace2 Client Sample ID: 4103-13 Lab Sample ID: 680-224146-3 Date Collected: 10/19/22 12:42 Matrix: Ground Water Date Received: 10/26/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 10 5 mL 5 mL 598354 10/29/22 21:45 AGW EET PEN Instrument ID: Curie Total Recoverable Prep 3005A 50 mL 50 mL 747600 10/28/22 12:40 RR EET SAV Total Recoverable Analysis 6010D 1 748082 10/31/22 19:24 BJB EET SAV Instrument ID: ICPH Total/NA Prep 7470A 50 mL 50 mL 747653 10/28/22 16:46 JKL EET SAV Total/NA Analysis 7470A 1 748008 10/31/22 15:03 BCB EET SAV Instrument ID: QuickTrace2 Client Sample ID: 4103-14 Lab Sample ID: 680-224146-4 Date Collected: 10/19/22 14:40 Matrix: Ground Water Date Received: 10/26/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 1 5 mL 5 mL 598354 10/29/22 17:59 AGW EET PEN Instrument ID: Curie Page 15 of 26 Eurofins Savannah 11/15/2022 (Rev. 1) Lab Chronicle Client: Environmental Conservation Laboratories Project/Site: CF14768 F Job ID: 680-224146-1 Client Sample ID: 4103-14 Lab Sample ID: 680-224146-4 Date Collected: 10/19/22 14:40 Matrix: Ground Water Date Received: 10/26/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total Recoverable Prep 3005A 50 mL 50 mL 747600 10/28/22 12:40 RR EET SAV Total Recoverable Analysis 6010D 1 748082 10/31/22 19:27 BJB EET SAV Instrument ID: ICPH Total/NA Prep 7470A 50 mL 50 mL 747653 10/28/22 16:46 JKL EET SAV Total/NA Analysis 7470A 1 748008 10/31/22 15:10 BCB EET SAV Instrument ID: QuickTrace2 Client Sample ID: 4103- Trip Blank 1 Lab Sample ID: 680-224146-5 Date Collected: 10/19/22 11:30 Matrix: Water Date Received: 10/26/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 1 5 mL 5 mL 598354 10/29/22 15:03 AGW EET PEN Instrument ID: Curie Laboratory References: EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL (850)474-1001 EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 Page 16 of 26 Eurofins Savannah 11/15/2022 (Rev. 1) SUBCONTRACT ORDER 13'"(S ENCO Cary 0 Cz' CF14768 � SENDING LABORATORY: RECEIVING LABORATORY: ENCO Cary 102-A Woodwinds Industrial Court Cary, NC 27511 Phone 919 467 3090 Fax 919 467 35 15 Prolect Manager Amanda L Gaines Test Amei ica (GA) 5102 LaRoche Avenue Savannah, GA 31404 Phone (912)354-7858 Fax -0 Project State of Origin: 6eo,22046 cj,,sin of custody North Carolina Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103-11 Ground Water 19-Oct-22 11:30 8260D SIM ID 31-Oct-22 1500 02-Nov-22 11 30 Arsenic"total EPA6010D 31-Oct-22 1500 17-Apr-23 11 30 Baraun Total EPA 601 OD 31-Oct-22 1500 17-Apr-23 11 30 Cadmium Total EPA 601OD 31-Oct-22 1500 17-Apr-23 11 30 Chromium Total EPA 6010D 31-Oct-22 1500 17-Apr-23 11 30 Lead'Total EPA 601OD 31-Oct-22 1500 17-Apr-23 11 30 Mercury Total EPA 7000 (Upda3 I -Oct-22 1500 16-Nov-22 11 30 RCRA8 Metals ICP 31-Oct-22 1500 24-Oct-22 11 30 Selenium Total EPA 601OD 31-Oct-22 1500 17-Apr-23 11 30 Silver lotal EPA 601OD 31-Oct-22 1500 17-Apr-23 11 30 ORL Cowainer•v Supphed 250mLP+HNO3 (A) 40mLV+HCI (E) 40mLV+i-ICI (F) 40mLV+HCI (G) �Fb I,ab it Originating-LClientAlatrix Dflte Samnled Sample -Comments 4103-12 Ground Water 19-Oct-22 14:25 Analysis Due Explris W-wolints 82601)SIM ID 31-Oct-22 1500 02-Nov-22 1425 ORL Arsenic Total CPA 601 OD 31-Oct-22 1500 17-Apr-23 1425 Banum "total EPA 601 OD 31-Oct-22 15 00 17-Apr-23 14 25 Cadmium Total EPA 601 OD 31-Oct-22 1500 17-Apr-23 1425 Chromium Total LPA 6010D 31-Oct-22 15 00 17-Apr-23 14 25 Lead Total EPA 601OD 31-Oct-22 1500 17-Apr-23 1425 MerCUr1 Total EPA 7000 (Upda3I-Oct-22 1500 16-Nov-22 1425 RCRA8 Metals ICP 31-Oct-22 1500 24-Oe1-22 1425 Selenium Total EPA 601OD 31-Oct-22 1500 17-Apr-23 1425 Silver Total EPA6010D 31-Oct-22 1500 17-Apr-23 1425 C onlnurei s Supphed 250mLP+FlNO3 (A) 40mLV+HCI (E) 40ml V+HCI (C) 40mLV+l-ICI (G) 16 1-2-4 (22 U &Y0 Date 4, + S� Date Page 17 of 26 11 /15/2` ��e21(Rev. 1) SUBCONTRACT ORDER ENCO Cary CF14768 Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103-13 Ground Water 19-Oct-22 12:42 Analysis Vue _ Expires Analysis Comments 8260D SIM ID 31-Oct-22 15 00 02-Nov-22 1242 ORL Arsenic. Total EPA 601 OD 31-Oct-22 1500 17-Apr-23 1242 Banuin Total ENA 6010D 31-Oct-22 15 00 17-Apr-23 1242 Cadmnun Total L-.PA 601 OD 31-Oct-22 1500 17-Apr-23 1242 Chromium Total EPA 6010D 31-Oct-22 1500 17-Apr-23 1242 L cad 'l otal F PA 6010D 31-Oct-22 1500 17-Apr-23 1242 Mercury Total EPA 7000 (Upda3I-Oct-22 15 00 16-Nov-22 1242 RC'RA8 Metals 1CP 31-Oct-22 l5 00 24-Oct-22 1242 Selenium Total EPA 601 OD 31-Oct-22 1500 17-Apr-23 1242 Silver Total FPA 601 OD 31-Oct-22 1500 17-Apr-23 1242 Container s Supplied 250mLP+HNO3 (A) 40mLV+1-ICI (E) 40mLV+HCI (F) 40nAN+HCI (G) Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103-14 Ground Water 19-Oct-22 14:40 Analysis Due Expireslpttlysis Comments 8260D SIM ID 31-Oct-22 1500 02-Nov-22 1440 ORL Arsenic Total EPA 601OD 31-Oct-22 1500 17-Apr-23 1440 Barnuri'I'otal EPA 6010D 31-Oct-22 15 00 17-Apr-23 14 40 Cadmium Total EPA 601 OD 31-Oct-22 1500 17-Apr-23 1440 Chromium Total EPA 601 OD 31-Oct-22 1500 17-Apr-23 1440 Lead I'otai EPA 601 OD 31-Oct-22 1500 17-Apr-23 1440 Mcrt,uryTotal EPA 7000 (Upda3 I.Oct-22 1500 16-Nov-22 1440 RCRA8 Metals ICP 31-Oct-22 1500 24-Oct-22 1440 Selenium Total EPA 6010D 31-Oct-22 1500 17-Apr-23 1440 Silver lotal EPA 6010D 31-Oct-22 1500 17-Apr-23 1440 Conlamei s Supplied 250mLP+HNO3 (A) 40mLV+FICI (E) 40mLV+HCI (F) 40mLV+FICI (G) Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103-Trip Blank I Watei 19-Oct-22 11:30 8260D SIM ID 31-Oct-22 15 00 02-Nov-22 11 30 �' � ORL Containei s Supplied 40mLV+140 (C) 40mLV+1-ICI (D) Released By Date Received By Date Released By Date Received By Date Page 18 of 26 11 /15/2ff2"'(Kiev. 1) SUBCONTRACT ORDER Analysis: 8260D SIM ID Units, ug/L Calculation Options ❑ Dry -weight correct MDL/MRL ❑ Dry -weight correct results ❑X Report results to MDL ❑ Report results to MRL Ana ENCO Cary CF14768 Custom Analysis Settings Flags Synchronize with Base Method ❑ B X❑ MDL ❑ Flag Levels n D ❑X MRL X❑ SUR Limit ❑ E ❑X # X❑ QC Limits ❑ 1 X❑ Rpt ❑X Analyte Info ❑ U Matrix: Water 0 1 4-Dioxwe X X 08 2 0 001 10 200 50 10 200 Toluene-d8 a X 67 139 1,4-Ditluorobenzeae X x 1,4-Dioxaae-0 X X Released By Date Received By Date Released By Date Received By Date Page 19 of 26 11/15/W(Rev. 1) &Tj F cf 0 in 0 4-- LU Ix It, I cr II N 14t -J A z Vo LU 0) LLJ cr. % NOW V, P -TTTTb72022 (Rev. 1) ITOF 20r� Sample Preservation Verification ENCO Cary Work Order CF 14768 Client Golder Associates Inc (GO007) Logged In 20 Oct-22 15 48 Pro-,crvation Cher Performed Ry CF14768-01 Cant Type Pros (pH) Requirement pH, "Checked C ticked Control Daterrime pHA /OlVed Adjusted R Used/Comments Reagent Used/C A 290nit- +I-IN03 �2 Y N / NA YIN NA CF14768-02 Cont Type Preq (pH) I 1/-'tN PH CMckedl Datelfirne PH Adjusted I m Reagent Used/Coments Requirement Control Adjusted A 250ml. f-HNO*", 2 I 9 Y I N I NA I Y ( N) NA KLIJ CF14768-03 Cont Type Pres (pF) I PH Checked PH Adjusted Date ime Reagent Used/Comments Requirement VN Control Adjusted A 21,50mt- +IAN03 2 W/ N I NA YIN NA CF14768-04 ContPrey t Type (pH) I PH Checked I PH Adjusted DatefTlirne gent UsedlComments Requirement, !'�N Qoi)trQl. Adjusted A 250mLF14HNO3 2 (Y) N / NA Y ( N) NA Reagent Ndn-ie ID pH Strip ID Reagent Name ID 3 -J4 Rpa.qent Name ID 6 a C' NP t MNT\Print\wko—Pr(,-servationClicck i pt I , ,� Page 21 of 26 11/15/2022 (Rev. 1) m X c LL m C v m > m r LO C O N � L QJ C a) o > o LU CMI) a- z 0 o� a o N OvOOv m m Om`n00 `o <y zry (v <na N O N ry U v U Q N L O t N N N S z Q �- o U m G E E E i �U E o U 0 U 0 U O 0 0 ¢ Q m a) wa .0m y a op N U=u UCL Q O OS L n H< VWi om 0)- M`C L s z U O m m (ti N N ❑ p Z NZcZ�E 2Q u0 W w W O 'o o.c p U(O ad (o a QmUowu. [�S_-,Y� O �aF o. E d vauieluoo;o iagwnN le;ol (o m r) m N E t o E E E o t Via° a o m d v4 z m N o w' E a C p ca o- m .e U ° J E N p Vl 7 U NZ p z of `o a ' t a) 4 y y o Y Y d a> ..s c� E amp m o c 0 0 o I , o O N N E y N ,o �, O m m o o m W `° c E a n a E co N C auexoi4-q'� (pOW) OOfOS/WIS O09Z8 X X X X X o Z L'u .�' C .a u U U O U r w O (ON ao saA) OSW/SW wao;/ad c o d m s o o f v) n E = " (ON .Lo so k) aldweS pajall!d plald m a U) 1— a m � 0 o y ; O La a7 a7 (0 (0 n T T o~ L E E O y E 'u o U o U N a" a `o E E a c a E E a C7 o L 'U a N N C II a) n y O CN N C W N � O � O LO F (�) (0 N (o V' .- mr. V' a) M N T y a c w (a a) fn W W W W W a) io J N N W N N N N N N N v o� - o 0 0 0 o u) o w .. # 6 N .o 0 0 E A a m u E E E U) o m wM o �- N a O a 20 rmn y� i, E c 100_ 0. .. E � w o _ m U W a a c a � � t Woo z JO m L aa)) Q Y a r v Z i+ m x m v L as O L v J m d E O U a U ° m.S' W c o oO lA C _ d o m N O v 0 ' N N m o ' - � � N O C y > O O (O v (O v (O v O v c 0 y U a) L m a3 o E o a v v v v z` m a ? - z E '� C O F - N N N N N N N N Y C E ICp Qcr 4 N L C C U ,-; m > p W O E J a7 a o O o c y .o o m (n 0 ro (o 0 m co o m co f6 m a `o = a -a m E N a m n w} W U m V p O) T rn U OU r E (O Z^ - F c o u o = a7 N Y p �- o m ._ E o 0 0 0 o N �n c y o a Q Q Q �! L U Lo E o U W¢ a r) .. c U d m in lL o o (n a CO E w d o LL a` U « )o fn v v v v v d 0 o a z -o O c N 0 E W -y of x U 0 Page 22 of 26 11/15/2022 (Rev. 1) Login Sample Receipt Checklist Client: Environmental Conservation Laboratories Job Number: 680-224146-1 Login Number: 224146 List Number: 1 Creator: Chamberlain, Kim A Question List Source: Eurofins Savannah Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. True The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True m Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? N/A There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Eurofins Savannah Page 23 of 26 11/15/2022 (Rev. 1) Login Sample Receipt Checklist Client: Environmental Conservation Laboratories Login Number: 224146 List Number: 2 Creator: Whitley, Adrian Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. N/A Sample custody seals, if present, are intact. N/A The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is N/A <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A 0.0°C IR8 Job Number: 680-224146-1 List Source: Eurofins Pensacola List Creation: 10/28/22 01:08 PM Eurofins Savannah Page 24 of 26 11/15/2022 (Rev. 1) Accreditation/Certification Summary C Client: Environmental Conservation Laboratories Job ID: 680-224146-1 Project/Site: CF14768 Laboratory: Eurofins Savannah The accreditations/certifications listed below are applicable to this report. Authority Program Identification Number Expiration Date North Carolina (WW/SW) State 269 12-31-22 Laboratory: Eurofins Pensacola The accreditations/certifications listed below are applicable to this report. Authority Program Identification Number Expiration Date North Carolina (WW/SW) State 314 12-31-22 Eurofins Savannah Page 25 of 26 11/15/2022 (Rev. 1) The test results in this report meet NELAP requirements for parameters for which accreditation is required or available. Any exceptions to the NELAP requirements are noted. Results pertain only to samples listed in this report. This report may not be reproduced, except in full, without the written approval of the laboratory. Questions should be directed to the person who signed this report. The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the {01 Project Manager. Ili Generated 11/15/2022 1:12:10 PM Revision 1 Authorized for release by Naomi Flanagan, Project Manager Naomi. Flanagan(d).et.eurofinsus.com Designee for Sheila Hoffman, Project Manager II Sheila. Hoffmanaet.eurofinsus.com (912)250-0279 Eurofins Savannah is a laboratory within Eurofins Environment Testing Southeast, LLC, a company within Eurofins Environment Testing Group of Companies 2�SQ pCCgF ENCO Laboratories 9e0 Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Tuesday, November 15, 2022 Golder Associates, Inc. (G0007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: GL19131339 Task 106, Project Name/Desc: White Street LF-Phase I,II- Fall ENCO Workorder(s): CF14769,CF16029 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory between Thursday, October 20, 2022 and Monday, October 24, 2022. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Amanda L. Gaines Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 17 PROJECT NARRATIVE Date: November 15, 2022 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase 1,11- Fall Lab ID: CF14769 CF16029 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The 8260D LCS exhibited a high bias for Isobutyl alcohol; however, this analyte was not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for Bromomethane and Trichlorofluoromethane; however, these analytes were not detected in the associated samples. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Amanda Gaines Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 17 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4303-MW33 Lab ID: CF14769-01 Sampled: 10/18/22 13:15 Received: 10/20/22 12:15 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 50308_MS 11/01/22 10/24/22 14:42 10/24/22 21:02 Client ID: 4103/12-SWS Lab ID: CF16029-01 Sampled: 10/21/22 09:20 Received: 10/24/22 11:00 Parameter Preparation Hold Date/Time(s) Preo Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 50308_MS 11/04/22 11/01/22 21:39 11/02/22 20:52 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 17 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY No positive results detected. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 of 17 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW13 Lab Sample ID:CF14769-01 Received: 10/20/22 12:15 Matrix: Ground Water Sampled:10/18/22 13:15 Work Order: CF14769 Project: White Street LF-Phase I,II- Fall Sampled By: Nicolas Tejada/Johnathan Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,1-Dichloropropene [563-58-6]^ 0.15 U ug/L 1 0.15 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,2,4-Trichlorobenzene [120-82-1]^ 0.14 U ug/L 1 0.14 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,3-Dichlorobenzene [541-73-1]^ 0.15 U ug/L 1 0.15 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,3-Dichloropropane [142-28-9]^ 0.16 U ug/L 1 0.16 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 2,2-Dichloropropane [594-20-7]^ 0.28 U ug/L 1 0.28 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 2124023 EPA 8260D 10/24/22 21:02 RKY 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 2124023 EPA 8260D 10/24/22 21:02 RKY 3-Chloropropene [107-05-1]A 0.11 U ug/L 1 0.11 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 2124023 EPA 8260D 10/24/22 21:02 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 2124023 EPA 8260D 10/24/22 21:02 RKY Acetonitrile [75-05-8]A 5.0 U ug/L 1 5.0 10 2124023 EPA 8260D 10/24/22 21:02 RKY Acrolein [107-02-8]A 4.0 U ug/L 1 4.0 10 2124023 EPA 8260D 10/24/22 21:02 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 2124023 EPA 8260D 10/24/22 21:02 RKY Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY QV-01 Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 2124023 EPA 8260D 10/24/22 21:02 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Chloroprene [126-99-8]A 0.64 U ug/L 1 0.64 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Dichlorodifluoromethane [75-71-8]A 0.20 U ug/L 1 0.20 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Ethyl Methacrylate [97-63-2]^ 0.38 U ug/L 1 0.38 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 2124023 EPA 8260D 10/24/22 21:02 RKY Isobutyl alcohol [78-83-1]^ 11 U ug/L 1 11 50 2124023 EPA 8260D 10/24/22 21:02 RKY QL-02 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 5 Of 17 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103-MW13 Lab Sample ID:CF14769-01 Received: 10/20/22 12:15 Matrix: Ground Water Sampled:10/18/22 13:15 Work Order: CF14769 Project: White Street LF-Phase IJI- Fall Sampled By: Nicolas Tejada/lohnathan Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes Methacrylonitrile [126-98-7]A 4.9 U ug/L 1 4.9 10 2124023 EPA 8260D 10/24/22 21:02 RKY Methyl Methacrylate [80-62-6]A 0.51 U ug/L 1 0.51 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Naphthalene [91-20-3]A 0.11 U ug/L 1 0.11 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Propionitrile [107-12-0]A 5.0 U ug/L 1 5.0 10 2124023 EPA 8260D 10/24/22 21:02 RKY Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 2124023 EPA 8260D 10/24/22 21:02 RKY Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 2124023 EPA 8260D 10/24/22 21:02 RKY Xylenes (Total) [1330-20-7]A 0.45 U ug/L 1 0.45 3.0 2124023 EPA 8260D 10/24/22 21:02 RKY Surrogates Results DF Spike L v/ % Rec % Rec Limits Batch Method Analyzed " Notes 4-Bromofluorobenzene 58 1 50.0 116 % 53-136 2.724023 EPA 8260D 10124122 21:02 RKY Dibromofluoromethane 59 1 50.0 119 % 67-129 2.724023 EPA 8260D 10124122 21:02 RKY Toluene-& 56 1 50.0 112 % 59-134 2.724023 EPA 8260D 10124122 21:02 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 17 00� www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW5 Lab Sample ID:CF16029-01 Received: 10/24/22 11:00 Matrix: Surface Water Sampled:10/21/22 09:20 Work Order: CF16029 Project: White Street LF-Phase I,II- Fall Sampled By0onathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2KO1017 EPA 8260D 11/02/22 20:52 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2KO1017 EPA 8260D 11/02/22 20:52 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2KO1017 EPA 8260D 11/02/22 20:52 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 17 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW5 Lab Sample ID:CF16029-01 Received: 10/24/22 11:00 Matrix: Surface Water Sampled:10/21/22 09:20 Work Order: CF16029 Project: White Street LF-Phase I,II- Fall Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 50 1 50.0 101 % 53-136 2KO1017 EPA 6260D 11102122 20:52 RKY Dlbromofluoromethane 52 1 50.0 104 % 67-129 2KO1017 EPA 6260D 11102122 20:52 RKY Toluene-d8 50 1 50.0 99 % 59-134 2KO1017 EPA 6260D 11102122 20:52 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 17 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2124023 - EPA 5030B MS Blank (2124023-BLK1) Prepared: 10/24/2022 14:42 Analyzed: 10/24/2022 19:36 Analvte Result Flaq POL Units 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,1-Dichloropropene 0.15 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2,4-Trichlorobenzene 0.14 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,3-Dichlorobenzene 0.15 U 1.0 ug/L 1,3-Dichloropropane 0.16 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2,2-Dichloropropane 0.28 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 3-Chloropropene 0.11 U 1.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acetonitrile 5.0 U 10 ug/L Acrolein 4.0 U 10 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L Chloroprene 0.64 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Dichlorodifluoromethane 0.20 U 1.0 ug/L Ethyl Methacrylate 0.38 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Isobutyl alcohol 11 U 50 ug/L Methacrylonitrile 4.9 U 10 ug/L Methyl Methacrylate 0.51 U 1.0 ug/L Spike Source %REC Level Result %REC Limits RPD RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 17 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2124023 - EPA 5030B MS - Continued (� �Eo www.encolabs.com Blank (2324023-BLK1) Continued Prepared: 10/24/2022 14:42 Analyzed: 10/24/2022 19:36 Analvte Result Flaq POL Units Methylene chloride 0.23 U 1.0 ug/L Naphthalene 0.11 U 1.0 ug/L Propionitrile 5.0 U 10 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 58 ug/L 50.0 117 53-136 Dibromofluoromethane 56 ug/L 50.0 111 67-129 Toluene-d8 55 u91L 50.0 110 59-134 LCS (2324023-BSI) Prepared: 10/24/2022 14:42 Analyzed: 10/24/2022 17:41 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 89 75-133 Benzene 19 1.0 ug/L 20.0 97 80-134 Chlorobenzene 19 1.0 ug/L 20.0 96 80-120 Toluene 19 1.0 ug/L 20.0 93 71-120 Trichloroethene 20 1.0 ug/L 20.0 99 74-120 Matrix Spike (2324023-MS1) Prepared: 10/24/2022 14:42 Analyzed: 10/24/2022 18:10 Source: CFIS883-07 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 0.21 U 91 75-133 Benzene 20 1.0 ug/L 20.0 0.15 U 98 80-134 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 96 80-120 Toluene 19 1.0 ug/L 20.0 0.14 U 94 71-120 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 102 74-120 Matrix Spike Dup (2324023-MSD1) Prepared: 10/24/2022 14:42 Analyzed: 10/24/2022 18:38 Source: CF15883-07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 0.21 U 92 75-133 0.4 20 Benzene 19 1.0 ug/L 20.0 0.15 U 95 80-134 3 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 95 80-120 0.9 16 Toluene 18 1.0 ug/L 20.0 0.14 U 92 71-120 2 17 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 95 74-120 7 22 Batch 2KO1017 - EPA 5030B MS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 17 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2KO1017 - EPA 5030B MS - Continued Blank (2K03017-BLKS) Prepared: 11/01/2022 21:39 Analyzed: 11/02/2022 12:15 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 50 u91L 50.0 101 53-136 Dibromofluoromethane 52 u91L 50.0 104 67-129 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 11 of 17 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2KO1017 - EPA 5030B MS - Continued (� �Eo www.encolabs.com Blank (2K01017-BLKS) Continued Prepared: 11/01/2022 21:39 Analyzed: 11/02/2022 12:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 50 ug/L 50.0 100 59-134 LCS (2K01017-BS1) Prepared: 11/01/2022 21:39 Analyzed: 11/02/2022 10:20 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 95 75-133 Benzene 19 1.0 ug/L 20.0 94 80-134 Chlorobenzene 20 1.0 ug/L 20.0 101 80-120 Toluene 22 1.0 ug/L 20.0 108 71-120 Trichloroethene 20 1.0 ug/L 20.0 98 74-120 Matrix Spike (2K03017-MS1) Prepared: 11/01/2022 21:39 Analyzed: 11/02/2022 10:49 Source: CF15447-16 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 100 75-133 Benzene 19 1.0 ug/L 20.0 0.15 U 94 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 101 74-120 Matrix Spike Dup (2K03017-MSD1) Prepared: 11/01/2022 21:39 Analyzed: 11/02/2022 11:17 Source: CF15447-16 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Result Flaq POL 21 1.0 20 1.0 22 1.0 23 1.0 22 1.0 Spike Source %REC Units Level Result %REC Limits RPD ug/L 20.0 0.21 U 107 75-133 7 ug/L 20.0 0.15 U 100 80-134 6 ug/L 20.0 0.17 U 108 80-120 10 ug/L 20.0 0.14 U 117 71-120 10 ug/L 20.0 0.15 U 108 74-120 7 RPD Limit Notes 20 17 16 17 22 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 17 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QL-02 The associated laboratory control sample exhibited high bias; since the result is ND, there is no impact. QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 of 17 F 0 ac O U w d 0 N U LL O Z a U V) w M O Q 0 m a J Z 0 a w N Z 0 U z w Z O Z w d m 3 � m a ^' 2 co E m I E Q ro Q" c Ca m 1- CA LtJ � 45 a D �c Q m o E m� U) z o � a Cl S-OOOj7INS ap!MnS F a o E B }H 4 b4O6 la4o-L ap!UBAO x `1 � Z m C Lz'n'LL'OS Q m z d o CD x = uZ A'! L'US'aS E x m m m x CL Z XIPuaddy 301z9 $ Z ¢ ¢ z € ¢ al VYIS 009n,pwuepq ooeze'Z xlpueddb ODM o b x 4 U y r• y N m g I V21S 009ZB' L xlRLedciv (iQ918 a c D O E Q E E m L xlpueddV VS. 8'Z )qRveddV VZeoj,, x a d z xlpuaddb 8 ! 808 x V l \ 1 y G � ac t � y V A ` V a E E ttl U LL n 1 x m 1y.�7 4 iA ffi m co J n m pH C'J 41 Q o O m a a m R E m 9 3 0 � & W S� E_ m car: m cc m a: p U m a C�1 ` n m 0 0 QcmO rA 0 o = c N z Q a I, c V' M r ¢ _ 0 V lm `lie E V A 4 a z m a_ vi m E Page 14 of 17 Sample Preservation Verification ENCO Cary Work Order: CF14769 Project: White Street LF-Phase 1,11- Fall Client: Golder Associates, Inc. (GO007) Project#: GL19131339 Task 106 Logged In: 20-act-22 13:07 Logged By: Samantha L Hyatt Preservation Check Performed By:DatelTime: 7"0 CF14769-01 Cont Type Pres (pH) pH Checked / Requirement in Control pH Adjusted Date/Time Adjusted. Reagent Used/Comments E 250mLA (PEST) Pest pH 5-9 Y N 1 NA Y / NA F 250mLP+HNO3 <2 Y N I NA YIN / NA G 250mLP+NaOH >12 I N I NA Y 1 NA H 250mLP+ZnAc+NaOH >9 Y! 1 NA Y/ N NA Reactent Name ID 1 2 4 nt 1 pH Strip I D: Reagent Name ID 3 4 Rea ent Name ID _ 5 I 6 Page C:IELMNTIPrintlwko_PreservationCheck,rpt e 15 of 17 cc 4R O LU } a ❑ c � 0.0 4 Z 1 Q^i 0 o U m a X U w 0 cc Q m a 5 � tJp N O 3 O p O O� z; O Q W N O m cc'rn W N z O U H � zLU a z p N a 7 O z m a WR6_ co a cti v - E E m � CO LLI 1 N E E E ZL Z3 m 6 ❑ ~ O m N CDcc ?3 fJ? a m �t c Q n C q U $ N r 1 tt S � I Z a m 'a 2 a � o z N 100 � C G � �m I Z G C 4 U E E G �,2 � c'v aj9zg` � Itmlay 607a x 77, a c_ pEp V ro± QC Zc ro a 4 qh cc4 a a � ILa 2 _ 3-3m m U a N; �y LU a N dQ Jq' 91 n 4 a c E Sc E aS + y1. fi n �� z - Page 16 of 17 Sample Preservation Verification ENCO Cary C� Work Order: CF16029 Project: White Street LF-Phase 1,11- Fall Client: Golder Associates, Inc. (GO007) Project##: GL19131339 Task 106 Logged In: 25-Oct-22 09:28 Logged By: Samantha L Hy tt Preservation Check Performed By: Date/Time: I �� `"� I L -4 co CF16029-01 Cont iype Pres (pH) Requirement pH Checked ! : In Control pH Adjusted DateMme Adjusted 4 Reagent Used/Comments A 250mLP+HNO3 <2 Y 'N / NA Y f N /7 NA Rea ent Name ID 1 2 'pH Strip IU Rea ent Name ID 3 4 Reaclent Name ID 5 6 CaELMNT1Printlwko_Preservation Check. rpt Page 17 of 17 1 • % eurofins Environment Testing I ANALYTICAL REPORT C PREPARED FOR Attn: Amanda Gaines Environmental Conservation Laboratories 102 Woodwinds Industrial Ct, Suite A Cary, North Carolina 27511 Generated 2/2/2023 9:44:12 AM Revision 3 4 JOB DESCRIPTION CF14769 JOB NUMBER 680-223931-1 The test results in this report meet NELAP requirements for parameters for which accreditation is required or available. Any exceptions to the NELAP requirements are noted. Results pertain only to samples listed in this report. This report may not be reproduced, except in full, without the written approval of the laboratory. Questions should be directed to the person who signed this report. The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the Eurofins Environment Testing Southeast, LLC Project Manager. Generated 2/2/2023 9:44:12 AM Revision 3 Authorized for release by Naomi Flanagan, Project Manager Naomi. Flanagan(d).et.eurofinsus.com (912)354-7858 Eurofins Savannah is a laboratory within Eurofins Environment Testing Southeast, LLC, a company within Eurofins Environment Testing Group of Companies Page 2 of 55 2/2/2023 (Rev. 3) Client: Environmental Conservation Laboratories Sample Summary Job ID: 680-223931-1 Project/Site: CF14769 Lab Sample ID Client Sample ID Matrix Collected Received 680-223931-1 4103-MW13 Water 10/18/22 13:15 10/25/22 08:00 680-224103-1 4103/12-S W5 Water 10/21/22 09:20 10/27/22 08:00 Page 3 of 55 Eurgf)pp2§p9TRAP 3) Method Summary Client: Environmental Conservation Laboratories Project/Site: CF14769 Job ID: 680-223931-1 U Method Method Description Protocol 8260D SIM Volatile Organic Compounds (GC/MS) SW846 8260D SIM Volatile Organic Compounds (GC/MS) SW846 8270E Semivolatile Organic Compounds (GC/MS) SW846 8081 B/8082A Organochlorine Pesticides and Polychlorinated Biphenyls by Gas Chromatography SW846 8151A Herbicides (GC) SW846 6010D Metals (ICP) SW846 6020B Metals (ICP/MS) SW846 7470A Mercury (CVAA) SW846 4500 S2 F-2011 Sulfide, Total SIM 9012B Cyanide, Total andorAmenable SW846 3005A Preparation, Total Recoverable or Dissolved Metals SW846 3510C Liquid -Liquid Extraction (Separatory Funnel) SW846 3520C Liquid -Liquid Extraction (Continuous) SW846 5030C Purge and Trap SW846 5030C Purge and Trap SW846 7470A Preparation, Mercury SW846 8151A Extraction (Herbicides) SW846 9012B Cyanide, Total and/orAmenable, Distillation SW846 Protocol References: SM = "Standard Methods For The Examination Of Water And Wastewater" SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: EET DEN = Eurofins Denver, 4955 Yarrow Street, Arvada, CO 80002, TEL (303)736-0100 EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL (850)474-1001 EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 Laboratory EET DEN EET PEN EET SAV EET SAV EET SAV EET SAV EET SAV EET SAV EET SAV EET SAV EET SAV EET SAV EET SAV EET DEN EET PEN EET SAV EET SAV EET SAV Eurofins Savannah Page 4 of 55 2/2/2023 (Rev. 3) Definitions/Glossary Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Qualifiers GC/MS VOA Qualifier Qualifier Description J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. GC/MS Semi VOA Qualifier Qualifier Description E Result exceeded calibration range. J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. GC Semi VOA Qualifier Qualifier Description `1 LCS/LCSD RPD exceeds control limits. J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. p The %RPD between the primary and confirmation column/detector is >40%. The lower value has been reported. Metals Qualifier Qualifier Description H Sample was prepped or analyzed beyond the specified holding time J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. General Chemistry Qualifier Qualifier Description H Sample was prepped or analyzed beyond the specified holding time J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Glossary Abbreviation These commonly used abbreviations may or may not be present in this report. a Listed under the "Y column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level' MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRIES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points Eurofins Savannah Page 5 of 55 2/2/2023 (Rev. 3) Definitions/Glossary Client: Environmental Conservation Laboratories Project/Site: CF14769 Glossary (Continued) Abbreviation These commonly used abbreviations may or may not be present in this report. TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count F Job ID: 680-223931-1 U Eurofins Savannah Page 6 of 55 2/2/2023 (Rev. 3) Case Narrative Client: Environmental Conservation Laboratories Project/Site: CF14769 Job ID: 680-223931-1 Laboratory: Eurofins Savannah Narrative Job Narrative 680-223931-1 Comments No additional comments. Job ID: 680-223931-1 Revision The report being provided is a revision of the original report sent on 11/3/2022. The report (revision 3) is being revised due to: Mercury was missed during initial login and review. Revision to narrative explantion was also requested for clarification Report revision history Revision 1 - 11/14/2022 - Reason - PCB-1262 is missing from 8081_8082 .Sulfide as 1-12S needs removing. Receipt The samples were received on 10/25/2022 8:00 AM and 10/26/2022 8:00 AM. Unless otherwise noted below, the samples arrived in good condition, and where required, properly preserved and on ice. The temperatures of the 2 coolers at receipt time were 4.90 C and 5.40 C. GC/MS VOA No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. GC/MS Semi VOA Methods 8270D, 8270E: The following analytes have been identified, in the reference method and/or via historical data, to be poor and/or erratic performers: 1,4-Naphthoquinone and Methapyrilene. These analytes may have a %D >20% but must be < 50% in the initial calibration verification (ICV). Method 8270E: The continuing calibration verification (CCV) analyzed in batch 680-747438 was outside the method criteria for the following analyte(s): 3 & 4 Methylphenol, bis (2-chloroisopropyl) ether and Bis(2-chloroethyl)ether. A CCV standard at or below the reporting limit (RL) was analyzed with the affected samples and found to be acceptable. As indicated in the reference method, sample analysis may proceed; however, any detection for the affected analyte(s) is considered estimated. Method 8270E: The following analytes have been identified, in the reference method and/or via historical data, to be poor and/or erratic performers: p-Phenylene diamine, 2-Acetylaminofluorene, and Methapyrilene. These analytes may have a %D >20% but must be <50%. If >50%, a CCV standard at or below the reporting limit (RL) was analyzed with the affected samples and found to be acceptable. As indicated in the reference method, sample analysis may proceed; however, any detection for the affected analyte(s) is considered estimated. Method 8270E: 1,4-Naphthoquinone recovered in the LCS above the calibration curve at a level that was unable to be calculated due to this analyte being on a quadratic fit, Note that these analytes are known poor performers when analyzed using this method. (LCS 680-746985/16-A) and (LCSD 680-746985/17-A) No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. GC VOA No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. GC Semi VOA Method 8151A: A portion of the following sample was used for analysis, rather than testing the entire sample amount in the original container, due to the sample was prepared using an exact volume as opposed to the volume received: 4103-MW13 (680-223931-1). As such, the required solvent rinse of the original container could not be performed. Method 8081 B/8082A: The RPD of the laboratory control sample (LCS) and laboratory control sample duplicate (LCSD) for preparation Eurofins Savannah Page 7 of 55 2/2/2023 (Rev. 3) Case Narrative C Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Job ID: 680-223931-1 (Continued) Laboratory: Eurofins Savannah (Continued) batch 680-746957 and analytical batch 680-747195 recovered outside control limits for the following analyte: PCB-1016. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Metals Method 6010D: The method blank for preparation batch 680-747010 contained zinc above the reporting limit (RL). None of the samples associated with this method blank contained the target compound; therefore, re -extraction and/or re -analysis of samples were not performed. Method 6010D: The method blank for preparation batch 680-747010 contained nickel above the method detection limit (MDL). None of the samples associated with this method blank contained the target compound; therefore, re -extraction and/or re -analysis of samples were not performed. Method 7470A: The following sample was prepared outside of preparation holding time.Mercury was missed during initial login and review: 4103-MW13 (680-223931-1). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. General Chemistry Method SM 4500 S2 F: The following sample was received outside of holding time: 4103-MW13 (680-223931-1). Method SM 4500 S2 F: The method requirement for no headspace was not met. The following sample was analyzed with headspace in the sample container(s): 4103-MW13 (680-223931-1). No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Organic Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. VOA Prep No analytical or quality issues were noted, other than those described in the Definitions/Glossary page. Eurofins Savannah Page 8 of 55 2/2/2023 (Rev. 3) Detection Summary Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Client Sample ID: 4103-MW13 Lab Sample ID: 680-223931-1 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type 1,4-Dioxane 0.32 J 1.4 0.27 ug/L 1 8260D SIM Total/NA ' Vanadium 4.7 J 10 1.0 ug/L 1 6010D Total Recoverable Barium 82 10 4.4 ug/L 1 6010D Total Recoverable Sulfide 1.3 H 1.0 1.0 mg/L 1 4500 S2 F-2011 Total/NA Cyanide, Total 0.0030 J 0.010 0.0025 mg/L 1 9012B Total/NA Client Sample ID: 4103/12-SW5 Lab Sample ID: 680-224103-1 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Vanadium 1.1 J 10 1.0 ug/L 1 6010D Total Recoverable Zinc 8.9 J 20 8.7 ug/L 1 6010D Total Recoverable Barium 35 10 4.4 ug/L 1 6010D Total Recoverable This Detection Summary does not include radiochemical test results. Eurofins Savannah Page 9 of 55 2/2/2023 (Rev. 3) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Client Sample ID: 4103-MW13 Lab Sample ID: 680-223931-1 Date Collected: 10/18/22 13:15 Matrix: Water Date Received: 10/25/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane 0.32 J 1.4 0.27 ug/L 10/28/2218:23 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 1,2-Dichloroethane-d4 (Surr) 100 70- 127 10128122 18:23 1 Dibromofluoromethane (Surr) 97 77- 120 10128122 18:23 1 Method: SW846 8270E - Semivolatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,2,4,5-Tetrachlorobenzene <0.74 9.8 0.74 ug/L 10/25/22 23:00 10/28/22 03:11 1 1,3,5-Trinitrobenzene <2.0 9.8 2.0 ug/L 10/25/22 23:00 10/28/22 03:11 1 1,3-Dinitrobenzene <0.59 9.8 0.59 ug/L 10/25/22 23:00 10/28/22 03:11 1 1,4-Dichlorobenzene <0.53 9.8 0.53 ug/L 10/25/22 23:00 10/28/22 03:11 1 1,4-Naphthoquinone <0.61 9.8 0.61 ug/L 10/25/22 23:00 10/28/22 03:11 1 1,4-Phenylenediamine <9.8 2000 9.8 ug/L 10/25/22 23:00 10/28/22 03:11 1 1-Naphthylamine <1.1 9.8 1.1 ug/L 10/25/22 23:00 10/28/22 03:11 1 2,3,4,6-Tetrachlorophenol <0.70 9.8 0.70 ug/L 10/25/22 23:00 10/28/22 03:11 1 2,4,5-Trichlorophenol <1.2 9.8 1.2 ug/L 10/25/22 23:00 10/28/22 03:11 1 2,4,6-Trichlorophenol <0.83 9.8 0.83 ug/L 10/25/22 23:00 10/28/22 03:11 1 2,4-Dichlorophenol <1.1 9.8 1.1 ug/L 10/25/22 23:00 10/28/22 03:11 1 2,4-Dimethylphenol <3.9 9.8 3.9 ug/L 10/25/22 23:00 10/28/22 03:11 1 2,4-Dinitrophenol <9.8 49 9.8 ug/L 10/25/22 23:00 10/28/22 03:11 1 2,4-Dinitrotoluene <1.2 9.8 1.2 ug/L 10/25/22 23:00 10/28/22 03:11 1 2,6-Dichlorophenol <0.71 9.8 0.71 ug/L 10/25/22 23:00 10/28/22 03:11 1 2,6-Dinitrotoluene <1.1 9.8 1.1 ug/L 10/25/22 23:00 10/28/22 03:11 1 2-Acetylaminofluorene <1.6 9.8 1.6 ug/L 10/25/22 23:00 10/28/22 03:11 1 2-Chloronaphthalene <0.78 9.8 0.78 ug/L 10/25/22 23:00 10/28/22 03:11 1 2-Chlorophenol <0.85 9.8 0.85 ug/L 10/25/22 23:00 10/28/22 03:11 1 2-Methyl-4,6-dinitrophenol <9.8 49 9.8 ug/L 10/25/22 23:00 10/28/22 03:11 1 2-Methylnaphthalene <0.76 9.8 0.76 ug/L 10/25/22 23:00 10/28/22 03:11 1 2-Methylphenol <0.87 9.8 0.87 ug/L 10/25/22 23:00 10/28/22 03:11 1 2-Naphthylamine <1.5 9.8 1.5 ug/L 10/25/22 23:00 10/28/22 03:11 1 2-Nitroaniline <1.3 49 1.3 ug/L 10/25/22 23:00 10/28/22 03:11 1 2-Nitrophenol <0.74 9.8 0.74 ug/L 10/25/22 23:00 10/28/22 03:11 1 3 & 4 Methylphenol <1.3 9.8 1.3 ug/L 10/25/22 23:00 10/28/22 03:11 1 3,3'-Dichlorobenzidine <29 59 29 ug/L 10/25/22 23:00 10/28/22 03:11 1 3,3'-Dimethylbenzidine <9.8 20 9.8 ug/L 10/25/22 23:00 10/28/22 03:11 1 3-Methylcholanthrene <1.4 9.8 1.4 ug/L 10/25/22 23:00 10/28/22 03:11 1 3-Nitroaniline <4.9 49 4.9 ug/L 10/25/22 23:00 10/28/22 03:11 1 4-Aminobiphenyl <1.2 9.8 1.2 ug/L 10/25/22 23:00 10/28/22 03:11 1 4-Bromophenyl phenyl ether <0.75 9.8 0.75 ug/L 10/25/22 23:00 10/28/22 03:11 1 4-Chloro-3-methylphenol <0.98 9.8 0.98 ug/L 10/25/22 23:00 10/28/22 03:11 1 4-Chloroaniline <2.2 20 2.2 ug/L 10/25/22 23:00 10/28/22 03:11 1 4-Chlorophenyl phenyl ether <0.82 9.8 0.82 ug/L 10/25/22 23:00 10/28/22 03:11 1 4-Nitroaniline <4.9 49 4.9 ug/L 10/25/22 23:00 10/28/22 03:11 1 4-Nitrophenol <1.9 49 1.9 ug/L 10/25/22 23:00 10/28/22 03:11 1 5-Nitro-o-toluidine <1.5 9.8 1.5 ug/L 10/25/22 23:00 10/28/22 03:11 1 7,12-Dimethyl benz(a)anth race ne <1.2 9.8 1.2 ug/L 10/25/22 23:00 10/28/22 03:11 1 a,a-Dimethylphenethylamine <34 2000 34 ug/L 10/25/22 23:00 10/28/22 03:11 1 Acenaphthene <0.74 9.8 0.74 ug/L 10/25/22 23:00 10/28/22 03:11 1 Acenaphthylene <0.83 9.8 0.83 ug/L 10/25/22 23:00 10/28/22 03:11 1 Eurofins Savannah Page 10 of 55 2/2/2023 (Rev. 3) Client Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14769 Job ID: 680-223931-1 Client Sample ID: 4103-MW13 Lab Sample ID: 680-223931-1 Date Collected: 10/18/22 13:15 Matrix: Water Date Received: 10/25/22 08:00 Method: SW846 8270E - Semivolatile Organic Compounds (GC/MS) (Continued) Analyte Result Qualifier RL MDL Unit Acetophenone <0.56 9.8 0.56 ug/L Anthracene <0.68 9.8 0.68 ug/L Benzo[a]anthracene <0.54 9.8 0.54 ug/L Benzo[a]pyrene <0.69 9.8 0.69 ug/L Benzo[k]fluoranthene <2.5 9.8 2.5 ug/L Benzo[g,h,i]perylene <0.85 9.8 0.85 ug/L Benzo[k]fluoranthene <1.2 9.8 1.2 ug/L Benzyl alcohol <1.1 9.8 1.1 ug/L bis (2-chloroisopropyl) ether <0.76 9.8 0.76 ug/L Bis(2-chloroethoxy)methane <0.92 9.8 0.92 ug/L Bis(2-chloroethyl)ether <1.1 9.8 1.1 ug/L Bis(2-ethylhexyl) phthalate <1.6 9.8 1.6 ug/L Butyl benzyl phthalate <1.2 9.8 1.2 ug/L Chlorobenzilate <9.8 9.8 9.8 ug/L Chrysene <0.50 9.8 0.50 ug/L Diallate <0.76 9.8 0.76 ug/L Dibenzofuran <0.77 9.8 0.77 ug/L Diethyl phthalate <0.86 9.8 0.86 ug/L Dimethoate <0.73 9.8 0.73 ug/L Dimethyl phthalate <0.97 9.8 0.97 ug/L Disulfoton <0.77 9.8 0.77 ug/L Ethyl methanesulfonate <0.94 9.8 0.94 ug/L Fluoranthene <0.72 9.8 0.72 ug/L Fluorene <0.94 9.8 0.94 ug/L Hexachlorobenzene <0.77 9.8 0.77 ug/L Hexachlorobutadiene <0.61 9.8 0.61 ug/L Hexachlorocyclopentadiene <2.4 9.8 2.4 ug/L Hexachloroethane <0.74 9.8 0.74 ug/L Hexachloropropene <1.4 9.8 1.4 ug/L Isodrin <9.8 9.8 9.8 ug/L Isophorone <0.88 9.8 0.88 ug/L Isosafrole <0.49 9.8 0.49 ug/L Methapyrilene <2.6 2000 2.6 ug/L Methyl methanesulfonate <0.59 9.8 0.59 ug/L Nitrobenzene <0.71 9.8 0.71 ug/L N-Nitrosodiethylamine <0.91 9.8 0.91 ug/L N-Nitrosodimethylamine <2.7 9.8 2.7 ug/L N-Nitrosodi-n-butylamine <0.94 9.8 0.94 ug/L N-Nitrosodi-n-propylamine <0.70 9.8 0.70 ug/L N-Nitrosodiphenylamine <0.90 9.8 0.90 ug/L N-Nitrosomethylethylamine <3.2 9.8 3.2 ug/L N-Nitrosopiperidine <0.86 9.8 0.86 ug/L N-Nitrosopyrrolidine <0.98 9.8 0.98 ug/L o,o',o"-Triethylphosphorothioate <0.98 9.8 0.98 ug/L Pentachlorobenzene <0.51 9.8 0.51 ug/L Pentachloronitrobenzene <0.76 9.8 0.76 ug/L Phenacetin <1.4 9.8 1.4 ug/L Phenanthrene <0.75 9.8 0.75 ug/L Phenol <0.81 9.8 0.81 ug/L D Prepared Analyzed Dil Fac 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 10/25/22 23:00 10/28/22 03:11 1 Eurofins Savannah Page 11 of 55 2/2/2023 (Rev. 3) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Client Sample ID: 4103-MW13 Lab Sample ID: 680-223931-1 Date Collected: 10/18/22 13:15 Matrix: Water Date Received: 10/25/22 08:00 Method: SW846 8270E - Semivolatile Organic Compounds (GC/MS) (Continued) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Phorate <0.85 9.8 0.85 ug/L 10/25/22 23:00 10/28/22 03:11 1 Pronamide <0.87 9.8 0.87 ug/L 10/25/22 23:00 10/28/22 03:11 1 Pyrene <0.62 9.8 0.62 ug/L 10/25/22 23:00 10/28/22 03:11 1 Safrole, Total <0.78 9.8 0.78 ug/L 10/25/22 23:00 10/28/22 03:11 1 Thionazin <0.89 9.8 0.89 ug/L 10/25/22 23:00 10/28/22 03:11 1 Dibenz(a,h)anthracene <0.98 9.8 0.98 ug/L 10/25/22 23:00 10/28/22 03:11 1 Di-n-octyl phthalate <1.4 9.8 1.4 ug/L 10/25/22 23:00 10/28/22 03:11 1 Di-n-butyl phthalate <0.81 9.8 0.81 ug/L 10/25/22 23:00 10/28/22 03:11 1 Famphur <1.1 9.8 1.1 ug/L 10/25/22 23:00 10/28/22 03:11 1 Indeno[1,2,3-cd]pyrene <0.98 9.8 0.98 ug/L 10/25/22 23:00 10/28/22 03:11 1 Kepone <9.8 98 9.8 ug/L 10/25/22 23:00 10/28/22 03:11 1 Methyl parathion <0.86 9.8 0.86 ug/L 10/25/22 23:00 10/28/22 03:11 1 o-Toluidine <1.4 9.8 1.4 ug/L 10/25/22 23:00 10/28/22 03:11 1 p-Dimethylamino azobenzene <0.77 9.8 0.77 ug/L 10/25/22 23:00 10/28/22 03:11 1 Parathion <1.3 9.8 1.3 ug/L 10/25/22 23:00 10/28/22 03:11 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 2,4,6-Tribromophenol (Surr) 64 39 - 124 10125122 23:00 10128122 03:11 1 2-Fluorobiphenyl (Surr) 66 32 - 113 10125122 23:00 10128122 03:11 1 2-Fluorophenol (Surr) 53 26 - 109 10125122 23:00 10128122 03:11 1 Nitrobenzene-d5 (Surr) 62 32 - 118 10/25/22 23:00 10128122 03:11 1 Phenol-d5 (Surr) 52 27- 110 10/25/22 23:00 10128122 03:11 1 Terphenyl-d 14 (Surr) 76 10 - 126 10/25/22 23:00 10128122 03:11 1 Method: SW846 8081 B/8082A - Organochlorine Pesticides and Polychlorinated Biphenyls by Gas Chromatography Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 4,4'-DDD <0.0019 0.048 0.0019 ug/L 10/25/22 16:49 10/26/22 22:54 1 4,4'-DDE <0.00096 0.048 0.00096 ug/L 10/25/22 16:49 10/26/22 22:54 1 4,4'-DDT <0.00096 0.048 0.00096 ug/L 10/25/22 16:49 10/26/22 22:54 1 Aldrin <0.0019 0.048 0.0019 ug/L 10/25/22 16:49 10/26/22 22:54 1 alpha-BHC <0.00096 0.048 0.00096 ug/L 10/25/22 16:49 10/26/22 22:54 1 alpha -Chlordane <0.0048 0.048 0.0048 ug/L 10/25/22 16:49 10/26/22 22:54 1 beta-BHC <0.0019 0.048 0.0019 ug/L 10/25/22 16:49 10/26/22 22:54 1 Chlordane (technical) <0.15 0.48 0.15 ug/L 10/25/22 16:49 10/26/22 22:54 1 delta-BHC <0.0019 0.048 0.0019 ug/L 10/25/22 16:49 10/26/22 22:54 1 Dieldrin <0.0019 0.048 0.0019 ug/L 10/25/22 16:49 10/26/22 22:54 1 Endosulfan 1 <0.0019 0.048 0.0019 ug/L 10/25/22 16:49 10/26/22 22:54 1 Endosulfan 11 <0.0019 0.048 0.0019 ug/L 10/25/22 16:49 10/26/22 22:54 1 Endosulfan sulfate <0.0019 0.048 0.0019 ug/L 10/25/22 16:49 10/26/22 22:54 1 Endrin <0.00096 0.048 0.00096 ug/L 10/25/22 16:49 10/26/22 22:54 1 Endrin aldehyde <0.0039 0.048 0.0039 ug/L 10/25/22 16:49 10/26/22 22:54 1 gamma-BHC (Lindane) <0.00096 0.048 0.00096 ug/L 10/25/22 16:49 10/26/22 22:54 1 gamma -Chlordane <0.0058 0.048 0.0058 ug/L 10/25/22 16:49 10/26/22 22:54 1 Heptachlor <0.00096 0.048 0.00096 ug/L 10/25/22 16:49 10/26/22 22:54 1 Heptachlor epoxide <0.0019 0.048 0.0019 ug/L 10/25/22 16:49 10/26/22 22:54 1 Methoxychlor <0.0019 0.048 0.0019 ug/L 10/25/22 16:49 10/26/22 22:54 1 PCB-1016 <0.31 "1 0.96 0.31 ug/L 10/25/22 16:49 10/26/22 22:54 1 PCB-1221 <0.33 0.96 0.33 ug/L 10/25/22 16:49 10/26/22 22:54 1 PCB-1232 <0.33 0.96 0.33 ug/L 10/25/22 16:49 10/26/22 22:54 1 PCB-1242 <0.33 0.96 0.33 ug/L 10/25/22 16:49 10/26/22 22:54 1 Eurofins Savannah Page 12 of 55 2/2/2023 (Rev. 3) Client Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14769 Job ID: 680-223931-1 Client Sample ID: 4103-MW13 Lab Sample ID: 680-223931-1 Date Collected: 10/18/22 13:15 Matrix: Water Date Received: 10/25/22 08:00 Method: SW846 8081 B/8082A - Organochlorine Pesticides and Polychlorinated Biphenyls by Gas Chromatography (Continued) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac PCB-1248 <0.33 0.96 0.33 ug/L 10/25/22 16:49 10/26/22 22:54 1 PCB-1254 <0.33 0.96 0.33 ug/L 10/25/22 16:49 10/26/22 22:54 1 PCB-1260 <0.33 0.96 0.33 ug/L 10/25/22 16:49 10/26/22 22:54 1 Toxaphene <0.30 4.8 0.30 ug/L 10/25/22 16:49 10/26/22 22:54 1 PCB-1262 <0.33 0.96 0.33 ug/L 10/25/22 16:49 10/26/22 22:54 1 Method: SW846 8151A- Herbicides (GC) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Silvex (2,4,5-TP) <0.088 0.78 0.088 ug/L 10/25/22 21:49 10/28/22 18:59 1 2,4,5-T <0.13 0.78 0.13 ug/L 10/25/22 21:49 10/28/22 18:59 1 2,4-D <0.17 1.0 0.17 ug/L 10/25/22 21:49 10/28/22 18:59 1 Pentachlorophenol <0.021 0.23 0.021 ug/L 10/25/22 21:49 10/28/22 18:59 1 Dinoseb <0.092 0.46 0.092 ug/L 10/25/22 21:49 10/28/22 18:59 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac DCAA 66 p 26 - 137 10125122 21:49 10128122 18:59 1 Method: SW846 6010D - Metals (ICP) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Vanadium 4.7 J 10 1.0 ug/L 10/26/22 05:41 10/26/22 17:32 1 Zinc <8.7 20 8.7 ug/L 10/26/22 05:41 10/26/22 17:32 1 Cadmium <0.44 5.0 0.44 ug/L 10/26/22 05:41 10/26/22 17:32 1 Beryllium <0.30 4.0 0.30 ug/L 10/26/22 05:41 10/26/22 17:32 1 Barium 82 10 4.4 ug/L 10/26/22 05:41 10/26/22 17:32 1 Nickel <3.3 40 3.3 ug/L 10/26/22 05:41 10/26/22 17:32 1 Silver <1.5 10 1.5 ug/L 10/26/22 05:41 10/26/22 17:32 1 Arsenic <6.4 20 6.4 ug/L 10/26/22 05:41 10/26/22 17:32 1 Copper <3.2 20 3.2 ug/L 10/26/22 05:41 10/26/22 17:32 1 Lead <6.6 10 6.6 ug/L 10/26/22 05:41 10/26/22 17:32 1 Tin <11 50 11 ug/L 10/26/22 05:41 10/26/22 17:32 1 Selenium <10 20 10 ug/L 10/26/22 05:41 10/26/22 17:32 1 Chromium <1.1 10 1.1 ug/L 10/26/22 05:41 10/26/22 17:32 1 Cobalt <1.4 10 1.4 ug/L 10/26/22 05:41 10/26/22 17:32 1 Method: SW846 6020B - Metals (ICP/MS) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony <0.52 5.0 0.52 ug/L 10/26/22 05:41 10/26/22 17:07 1 Thallium <0.26 1.0 0.26 ug/L 10/26/22 05:41 10/26/22 17:07 1 Method: SW846 7470A - Mercury (CVAA) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury <0.080 H 0.20 0.080 ug/L 02/01/2310:22 02/01/2315:54 1 General Chemistry Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Cyanide, Total (SW846 9012B) 0.0030 J 0.010 0.0025 mg/L 11/01/22 08:36 11/01/22 12:38 1 Analyte Result Qualifier RL RL Unit D Prepared Analyzed Dil Fac Sulfide (SM 4500 S2 F-2011) 1.3 H 1.0 1.0 mg/L 10/26/22 13:35 1 Eurofins Savannah Page 13 of 55 2/2/2023 (Rev. 3) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Client Sample ID: 4103/12-SW5 Lab Sample ID: 680-224103-1 Date Collected: 10/21/22 09:20 Matrix: Water Date Received: 10/27/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane <0.30 1.0 0.30 ug/L 10/30/2215:29 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 81 50 - 150 10130122 15:29 1 Toluene-d8 (Surr) 101 50 - 150 10130122 15:29 1 4-Bromofluorobenzene 102 50 - 150 10130122 15:29 1 Method: SW846 6010D - Metals (ICP) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Vanadium 1.1 J 10 1.0 ug/L 11/01/22 05:27 11/02/22 21:13 1 Zinc 8.9 J 20 8.7 ug/L 11/01/22 05:27 11/02/22 21:13 1 Cadmium <0.44 5.0 0.44 ug/L 11/01/22 05:27 11/02/22 21:13 1 Beryllium <0.30 4.0 0.30 ug/L 11/01/22 05:27 11/02/22 21:13 1 Barium 35 10 4.4 ug/L 11/01/22 05:27 11/02/22 21:13 1 Nickel <3.3 40 3.3 ug/L 11/01/22 05:27 11/02/22 21:13 1 Silver <1.5 10 1.5 ug/L 11/01/22 05:27 11/02/22 21:13 1 Arsenic <6.4 20 6.4 ug/L 11/01/22 05:27 11/02/22 21:13 1 Copper <3.2 20 3.2 ug/L 11/01/22 05:27 11/02/22 21:13 1 Lead <6.6 10 6.6 ug/L 11/01/22 05:27 11/02/22 21:13 1 Selenium <10 20 10 ug/L 11/01/22 05:27 11/02/22 21:13 1 Chromium <1.1 10 1.1 ug/L 11/01/22 05:27 11/02/22 21:13 1 Cobalt <1.4 10 1.4 ug/L 11/01/22 05:27 11/02/22 21:13 1 Method: SW846 6020B - Metals (ICP/MS) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony <0.52 5.0 0.52 ug/L 11/01/22 05:27 11/02/22 18:44 1 Thallium <0.26 1.0 0.26 ug/L 11/01/22 05:27 11/02/22 18:44 1 Eurofins Savannah Page 14 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14769 Method: 8260D SIM - Volatile Organic Compounds (GC/MS) Lab Sample ID: MB 280-591652/6 Matrix: Water Analysis Batch: 591652 MB MB Analyte Result Qualifier RL MDL Unit 1,4-Dioxane <0.27 1.4 0.27 ug/L MB MB Surrogate %Recovery Qualifier Limits 1,2-Dichloroethane-d4 (Surr) 100 70- 127 Dibromofluoromethane (Surr) 97 77- 120 Lab Sample ID: LCS 280-591652/3 Matrix: Water Analysis Batch: 591652 Analyte 1,4-Dioxane LCS LCS Surrogate %Recovery Qualifier 1,2-Dichloroethane-d4 (Surr) 98 Dibromofluoromethane (Surr) 94 Lab Sample ID: LCSD 280-59165214 Matrix: Water Analysis Batch: 591652 Analyte 1,4-Dioxane Spike Added 50.0 Limits 70- 127 77- 120 Job ID: 680-223931-1 Client Sample ID: Method Blank Prep Type: Total/NA D Prepared Analyzed Dil Fac 10/28/2214:14 1 Prepared Analyzed Dil Fac 10128122 14:14 1 10128122 14:14 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA LCS LCS %Rec Result Qualifier Unit D %Rec Limits 52.6 ug/L 105 25 -141 Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Spike LCSD LCSD %Rec RPD Added Result Qualifier Unit D %Rec Limits RPD Limit 50.0 51.9 ug/L 104 25-141 1 20 LCSD LCSD Surrogate %Recovery Qualifier Limits 1, 2-Dichloroethane-d4 (Surr) 97 70 -127 Dibromofluoromethane (Surr) 95 77-120 Lab Sample ID: MB 400-598413/6 Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 598413 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane <0.30 1.0 0.30 ug/L 10/30/2212:08 1 MB MB Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 77 50 - 150 10130122 12:08 1 Toluene-d8 (Surr) 104 50 - 150 10130122 12:08 1 4-Bromofluorobenzene 104 50 - 150 10130122 12:08 1 Lab Sample ID: LCS 400-598413/1004 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 598413 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits 1,4-Dioxane 10.0 9.64 ug/L 96 50 -150 Page 15 of 55 Eurofins Savannah 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Method: 8260D SIM - Volatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 400-598413/1004 Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 598413 LCS LCS Surrogate %Recovery Qualifier Limits Dibromofluoromethane 76 50 - 150 • Toluene-d8 (Surr) 108 50 - 150 4-Bromofluorobenzene 105 50 -150 Method: 8270E - Semivolatile Organic Compounds (GC/MS) Lab Sample ID: MB 680-746985/13-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 747438 Prep Batch: 746985 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,2,4,5-Tetrachlorobenzene <0.76 10 0.76 ug/L 10/25/22 23:00 10/27/22 20:44 1 1,3,5-Trinitrobenzene <2.0 10 2.0 ug/L 10/25/22 23:00 10/27/22 20:44 1 1,3-Dinitrobenzene <0.60 10 0.60 ug/L 10/25/22 23:00 10/27/22 20:44 1 1,4-Dichlorobenzene <0.54 10 0.54 ug/L 10/25/22 23:00 10/27/22 20:44 1 1,4-Naphthoquinone <0.62 10 0.62 ug/L 10/25/22 23:00 10/27/22 20:44 1 1,4-Phenylenediamine <10 2000 10 ug/L 10/25/22 23:00 10/27/22 20:44 1 1-Naphthylamine <1.1 10 1.1 ug/L 10/25/22 23:00 10/27/22 20:44 1 2,3,4,6-Tetrachlorophenol <0.72 10 0.72 ug/L 10/25/22 23:00 10/27/22 20:44 1 2,4,5-Trichlorophenol <1.2 10 1.2 ug/L 10/25/22 23:00 10/27/22 20:44 1 2,4,6-Trichlorophenol <0.85 10 0.85 ug/L 10/25/22 23:00 10/27/22 20:44 1 2,4-Dichlorophenol <1.1 10 1.1 ug/L 10/25/22 23:00 10/27/22 20:44 1 2,4-Dimethylphenol <4.0 10 4.0 ug/L 10/25/22 23:00 10/27/22 20:44 1 2,4-Dinitrophenol <10 50 10 ug/L 10/25/22 23:00 10/27/22 20:44 1 2,4-Dinitrotoluene <1.2 10 1.2 ug/L 10/25/22 23:00 10/27/22 20:44 1 2,6-Dichlorophenol <0.73 10 0.73 ug/L 10/25/22 23:00 10/27/22 20:44 1 2,6-Dinitrotoluene <1.1 10 1.1 ug/L 10/25/22 23:00 10/27/22 20:44 1 2-Acetylaminofluorene <1.6 10 1.6 ug/L 10/25/22 23:00 10/27/22 20:44 1 2-Chloronaphthalene <0.80 10 0.80 ug/L 10/25/22 23:00 10/27/22 20:44 1 2-Chlorophenol <0.87 10 0.87 ug/L 10/25/22 23:00 10/27/22 20:44 1 2-Methyl-4,6-dinitrophenol <10 50 10 ug/L 10/25/22 23:00 10/27/22 20:44 1 2-Methyl naphtha lene <0.78 10 0.78 ug/L 10/25/22 23:00 10/27/22 20:44 1 2-Methylphenol <0.89 10 0.89 ug/L 10/25/22 23:00 10/27/22 20:44 1 2-Naphthylamine <1.5 10 1.5 ug/L 10/25/22 23:00 10/27/22 20:44 1 2-Nitroaniline <1.3 50 1.3 ug/L 10/25/22 23:00 10/27/22 20:44 1 2-Nitrophenol <0.76 10 0.76 ug/L 10/25/22 23:00 10/27/22 20:44 1 3 & 4 Methylphenol <1.3 10 1.3 ug/L 10/25/22 23:00 10/27/22 20:44 1 3,3'-Dichlorobenzidine <30 60 30 ug/L 10/25/22 23:00 10/27/22 20:44 1 3,3'-Dimethylbenzidine <10 20 10 ug/L 10/25/22 23:00 10/27/22 20:44 1 3-Methylcholanthrene <1.4 10 1.4 ug/L 10/25/22 23:00 10/27/22 20:44 1 3-Nitroaniline <5.0 50 5.0 ug/L 10/25/22 23:00 10/27/22 20:44 1 4-Aminobiphenyl <1.2 10 1.2 ug/L 10/25/22 23:00 10/27/22 20:44 1 4-Bromophenyl phenyl ether <0.77 10 0.77 ug/L 10/25/22 23:00 10/27/22 20:44 1 4-Chloro-3-methylphenol <1.0 10 1.0 ug/L 10/25/22 23:00 10/27/22 20:44 1 4-Chloroaniline <2.2 20 2.2 ug/L 10/25/22 23:00 10/27/22 20:44 1 4-Chlorophenyl phenyl ether <0.84 10 0.84 ug/L 10/25/22 23:00 10/27/22 20:44 1 4-Nitroaniline <5.0 50 5.0 ug/L 10/25/22 23:00 10/27/22 20:44 1 4-Nitrophenol <1.9 50 1.9 ug/L 10/25/22 23:00 10/27/22 20:44 1 5-Nitro-o-toluidine <1.5 10 1.5 ug/L 10/25/22 23:00 10/27/22 20:44 1 Eurofins Savannah Page 16 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14769 Job ID: 680-223931-1 Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 680-746985/13-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 747438 Prep Batch: 746985 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 7,12-Dimethylbenz(a)anthracene <1.2 10 1.2 ug/L 10/25/22 23:00 10/27/22 20:44 1 a,a-Dimethylphenethylamine <35 2000 35 ug/L 10/25/22 23:00 10/27/22 20:44 1 Acenaphthene <0.76 10 0.76 ug/L 10/25/22 23:00 10/27/22 20:44 1 Acenaphthylene <0.85 10 0.85 ug/L 10/25/22 23:00 10/27/22 20:44 1 Acetophenone <0.57 10 0.57 ug/L 10/25/22 23:00 10/27/22 20:44 1 Anthracene <0.69 10 0.69 ug/L 10/25/22 23:00 10/27/22 20:44 1 Benzo[a]anthracene <0.55 10 0.55 ug/L 10/25/22 23:00 10/27/22 20:44 1 Benzo[a]pyrene <0.71 10 0.71 ug/L 10/25/22 23:00 10/27/22 20:44 1 Benzo[b]fluoranthene <2.6 10 2.6 ug/L 10/25/22 23:00 10/27/22 20:44 1 Benzo[g,h,i]perylene <0.87 10 0.87 ug/L 10/25/22 23:00 10/27/22 20:44 1 Benzo[k]fluoranthene <1.2 10 1.2 ug/L 10/25/22 23:00 10/27/22 20:44 1 Benzyl alcohol <1.1 10 1.1 ug/L 10/25/22 23:00 10/27/22 20:44 1 bis (2-chloroisopropyl) ether <0.78 10 0.78 ug/L 10/25/22 23:00 10/27/22 20:44 1 Bis(2-chloroethoxy)methane <0.94 10 0.94 ug/L 10/25/22 23:00 10/27/22 20:44 1 Bis(2-chloroethyl)ether <1.1 10 1.1 ug/L 10/25/22 23:00 10/27/22 20:44 1 Bis(2-ethylhexyl) phthalate <1.6 10 1.6 ug/L 10/25/22 23:00 10/27/22 20:44 1 Butyl benzyl phthalate <1.2 10 1.2 ug/L 10/25/22 23:00 10/27/22 20:44 1 Chlorobenzilate <10 10 10 ug/L 10/25/22 23:00 10/27/22 20:44 1 Chrysene <0.51 10 0.51 ug/L 10/25/22 23:00 10/27/22 20:44 1 Diallate <0.78 10 0.78 ug/L 10/25/22 23:00 10/27/22 20:44 1 Dibenzofuran <0.79 10 0.79 ug/L 10/25/22 23:00 10/27/22 20:44 1 Diethyl phthalate <0.88 10 0.88 ug/L 10/25/22 23:00 10/27/22 20:44 1 Dimethoate <0.75 10 0.75 ug/L 10/25/22 23:00 10/27/22 20:44 1 Dimethyl phthalate <0.99 10 0.99 ug/L 10/25/22 23:00 10/27/22 20:44 1 Disulfoton <0.79 10 0.79 ug/L 10/25/22 23:00 10/27/22 20:44 1 Ethyl methanesulfonate <0.96 10 0.96 ug/L 10/25/22 23:00 10/27/22 20:44 1 Fluoranthene <0.74 10 0.74 ug/L 10/25/22 23:00 10/27/22 20:44 1 Fluorene <0.96 10 0.96 ug/L 10/25/22 23:00 10/27/22 20:44 1 Hexachlorobenzene <0.79 10 0.79 ug/L 10/25/22 23:00 10/27/22 20:44 1 Hexachlorobutadiene <0.62 10 0.62 ug/L 10/25/22 23:00 10/27/22 20:44 1 Hexachlorocyclopentadiene <2.5 10 2.5 ug/L 10/25/22 23:00 10/27/22 20:44 1 Hexachloroethane <0.76 10 0.76 ug/L 10/25/22 23:00 10/27/22 20:44 1 Hexachloropropene <1.4 10 1.4 ug/L 10/25/22 23:00 10/27/22 20:44 1 Isodrin <10 10 10 ug/L 10/25/22 23:00 10/27/22 20:44 1 Isophorone <0.90 10 0.90 ug/L 10/25/22 23:00 10/27/22 20:44 1 Isosafrole <0.50 10 0.50 ug/L 10/25/22 23:00 10/27/22 20:44 1 Methapyrilene <2.7 2000 2.7 ug/L 10/25/22 23:00 10/27/22 20:44 1 Methyl methanesulfonate <0.60 10 0.60 ug/L 10/25/22 23:00 10/27/22 20:44 1 Nitrobenzene <0.73 10 0.73 ug/L 10/25/22 23:00 10/27/22 20:44 1 N-Nitrosodiethylamine <0.93 10 0.93 ug/L 10/25/22 23:00 10/27/22 20:44 1 N-Nitrosodimethylamine <2.8 10 2.8 ug/L 10/25/22 23:00 10/27/22 20:44 1 N-Nitrosodi-n-butylamine <0.96 10 0.96 ug/L 10/25/22 23:00 10/27/22 20:44 1 N-Nitrosodi-n-propylamine <0.72 10 0.72 ug/L 10/25/22 23:00 10/27/22 20:44 1 N-Nitrosodiphenylamine <0.92 10 0.92 ug/L 10/25/22 23:00 10/27/22 20:44 1 N-Nitrosomethylethylamine <3.3 10 3.3 ug/L 10/25/22 23:00 10/27/22 20:44 1 N-Nitrosopiperidine <0.88 10 0.88 ug/L 10/25/22 23:00 10/27/22 20:44 1 N-Nitrosopyrrolidine <1.0 10 1.0 ug/L 10/25/22 23:00 10/27/22 20:44 1 o,o',o"-Triethylphosphorothioate <1.0 10 1.0 ug/L 10/25/22 23:00 10/27/22 20:44 1 Pentachlorobenzene <0.52 10 0.52 ug/L 10/25/22 23:00 10/27/22 20:44 1 Eurofins Savannah Page 17 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: MB 680-746985/13-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 747438 Prep Batch: 746985 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Pentachloronitrobenzene <0.78 10 0.78 ug/L 10/25/22 23:00 10/27/22 20:44 1 Phenacetin <1.4 10 1.4 ug/L 10/25/22 23:00 10/27/22 20:44 1 Phenanthrene <0.77 10 0.77 ug/L 10/25/22 23:00 10/27/22 20:44 1 Phenol <0.83 10 0.83 ug/L 10/25/22 23:00 10/27/22 20:44 1 Phorate <0.87 10 0.87 ug/L 10/25/22 23:00 10/27/22 20:44 1 Pronamide <0.89 10 0.89 ug/L 10/25/22 23:00 10/27/22 20:44 1 Pyrene <0.63 10 0.63 ug/L 10/25/22 23:00 10/27/22 20:44 1 Safrole, Total <0.80 10 0.80 ug/L 10/25/22 23:00 10/27/22 20:44 1 Thionazin <0.91 10 0.91 ug/L 10/25/22 23:00 10/27/22 20:44 1 Dibenz(a,h)anthracene <1.0 10 1.0 ug/L 10/25/22 23:00 10/27/22 20:44 1 Di-n-octyl phthalate <1.4 10 1.4 ug/L 10/25/22 23:00 10/27/22 20:44 1 Di-n-butyl phthalate <0.83 10 0.83 ug/L 10/25/22 23:00 10/27/22 20:44 1 Famphur <1.1 10 1.1 ug/L 10/25/22 23:00 10/27/22 20:44 1 Indeno[1,2,3-cd]pyrene <1.0 10 1.0 ug/L 10/25/22 23:00 10/27/22 20:44 1 Kepone <10 100 10 ug/L 10/25/22 23:00 10/27/22 20:44 1 Methyl parathion <0.88 10 0.88 ug/L 10/25/22 23:00 10/27/22 20:44 1 o-Toluidine <1.4 10 1.4 ug/L 10/25/22 23:00 10/27/22 20:44 1 p-Dimethylamino azobenzene <0.79 10 0.79 ug/L 10/25/22 23:00 10/27/22 20:44 1 Parathion <1.3 10 1.3 ug/L 10/25/22 23:00 10/27/22 20:44 1 MB MB Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac 2,4,6-Tribromophenol (Surr) 66 39 - 124 10125122 23:00 10127122 20:44 1 2-Fluorobiphenyl (Surr) 81 32 - 113 10125122 23:00 10127122 20:44 1 2-Fluorophenol (Surr) 64 26 - 109 10125122 23:00 10127122 20:44 1 Nitrobenzene-d5 (Surr) 79 32 - 118 10/25/22 23:00 10127122 20:44 1 Phenol-d5 (Surr) 69 27- 110 10/25/22 23:00 10127122 20:44 1 Terphenyl-d 14 (Surr) 72 10 - 126 10/25/22 23:00 10127122 20:44 1 Lab Sample ID: LCS 680-746985/16-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 747438 Prep Batch: 746985 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits 1,3,5-Trinitrobenzene 100 82.2 ug/L 82 10-130 1,4-Naphthoquinone 100 NQ E ug/L NaN 10 -130 1,4-Phenylenediamine 100 25.6 J ug/L 26 10 -130 1-Naphthylamine 100 72.2 ug/L 72 10 -130 2-Acetylaminofluorene 100 101 ug/L 101 58 -130 2-Naphthylamine 100 78.0 ug/L 78 10 -130 3,3'-Dimethylbenzidine 100 51.2 ug/L 51 11 -130 4-Aminobiphenyl 100 80.6 ug/L 81 10 -130 5-Nitro-o-toluidine 100 71.5 ug/L 71 39 -130 7,12-Dimethylbenz(a)anthracene 100 97.2 ug/L 97 59 -130 a,a-Dimethylphenethylamine 100 49.2 J ug/L 49 10 -130 Chlorobenzilate 100 106 ug/L 106 58 -130 Diallate 100 81.2 ug/L 81 49 -130 Dimethoate 100 87.3 ug/L 87 10 -130 Disulfoton 100 78.8 ug/L 79 10 -130 Eurofins Savannah Page 18 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCS 680-746985/16-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 747438 Prep Batch: 746985 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits Ethyl methanesulfonate 100 66.2 ug/L 66 41 -130 Hexachloropropene 100 53.4 ug/L 53 10 -130 Isodrin 100 83.4 ug/L 83 61 -130 Isosafrole 100 76.0 ug/L 76 53 -130 Methyl methanesulfonate 100 74.6 ug/L 75 10 -130 N-Nitrosodiethylamine 100 61.0 ug/L 61 45-130 N-Nitrosodi-n-butylamine 100 72.4 ug/L 72 49-130 N-Nitrosomethylethylamine 100 61.7 ug/L 62 43 -130 N-Nitrosopiperidine 100 67.9 ug/L 68 54 -130 N-Nitrosopyrrolidine 100 71.0 ug/L 71 46-130 o,o',o"-Triethyl phosphorothioate 100 90.4 ug/L 90 23 -130 Pentachlorobenzene 100 81.5 ug/L 82 50-130 Pentachloronitrobenzene 100 77.3 ug/L 77 61 -130 Phenacetin 100 79.6 ug/L 80 60 -130 Phorate 100 116 ug/L 116 43 -130 Pronamide 100 87.8 ug/L 88 57 -130 Safrole, Total 100 87.5 ug/L 88 57 -130 Thionazin 100 77.5 ug/L 78 22 -130 Famphur 100 46.4 ug/L 46 10 -130 Methyl parathion 100 96.2 ug/L 96 10 -130 o-Toluidine 100 65.6 ug/L 66 38 -130 p-Dimethylamino azobenzene 100 76.6 ug/L 77 52 -130 Parathion 100 86.7 ug/L 87 28 -130 LCS LCS Surrogate %Recovery Qualifier Limits 2,4,6-Tribromophenol (Surr) 80 39- 124 2-Fluorobiphenyl (Surr) 83 32 - 113 2-Fluorophenol (Surr) 58 26 - 109 Nitrobenzene-d5 (Surr) 78 32 -118 Phenol-d5 (Surr) 60 27-110 Terphenyl-d 14 (Surr) 83 10 -126 Lab Sample ID: LCSD 680-746985/17-A Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA Analysis Batch: 747438 Prep Batch: 746985 Spike LCSD LCSD %Rec RPD Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit 1,3,5-Trinitrobenzene 100 81.6 ug/L 82 10-130 1 50 1,4-Naphthoquinone 100 NQ E ug/L NaN 10-130 NaN 50 1,4-Phenylenediamine 100 20.8 J ug/L 21 10 -130 21 50 1-Naphthylamine 100 64.4 ug/L 64 10 -130 11 50 2-Acetylaminofluorene 100 105 ug/L 105 58 -130 4 50 2-Naphthylamine 100 72.3 ug/L 72 10 -130 7 50 3,3'-Dimethylbenzidine 100 56.8 ug/L 57 11 -130 10 50 4-Aminobiphenyl 100 77.9 ug/L 78 10 -130 3 50 5-Nitro-o-toluidine 100 74.4 ug/L 74 39 -130 4 50 7,12-Dimethyl benz(a)anth race ne 100 99.8 ug/L 100 59 -130 3 50 a,a-Dimethylphenethylamine 100 46.0 J ug/L 46 10 -130 7 50 Eurofins Savannah Page 19 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14769 Job ID: 680-223931-1 Method: 8270E - Semivolatile Organic Compounds (GC/MS) (Continued) Lab Sample ID: LCSD 680-746985/17-A Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA Analysis Batch: 747438 Prep Batch: 746985 Spike LCSD LCSD %Rec RPD Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit Chlorobenzilate 100 100 ug/L 100 58 -130 5 50 • Diallate 100 81.9 ug/L 82 49 -130 1 50 Dimethoate 100 83.9 ug/L 84 10-130 4 50 Disulfoton 100 77.7 ug/L 78 10 -130 1 50 Ethyl methanesulfonate 100 67.7 ug/L 68 41 -130 2 50 Hexachloropropene 100 46.9 ug/L 47 10-130 13 50 Isodrin 100 81.3 ug/L 81 61 -130 3 50 Isosafrole 100 77.9 ug/L 78 53 -130 2 50 Methyl methanesulfonate 100 76.7 ug/L 77 10 -130 3 50 N-Nitrosodiethylamine 100 63.1 ug/L 63 45-130 3 50 N-Nitrosodi-n-butylamine 100 71.2 ug/L 71 49-130 2 50 N-Nitrosomethylethylamine 100 61.0 ug/L 61 43 -130 1 50 N-Nitrosopiperidine 100 75.8 ug/L 76 54 -130 11 50 N-Nitrosopyrrolidine 100 72.3 ug/L 72 46-130 2 50 o,o',o"-Triethylphosphorothioate 100 90.2 ug/L 90 23 -130 0 50 Pentachlorobenzene 100 79.4 ug/L 79 50-130 3 50 Pentachloronitrobenzene 100 77.2 ug/L 77 61 -130 0 50 Phenacetin 100 71.7 ug/L 72 60-130 10 50 Phorate 100 117 ug/L 117 43 -130 1 50 Pronamide 100 84.7 ug/L 85 57 -130 4 50 Safrole, Total 100 86.1 ug/L 86 57 -130 2 50 Thionazin 100 83.0 ug/L 83 22 -130 7 50 Famphur 100 46.7 ug/L 47 10 -130 1 50 Methyl parathion 100 93.1 ug/L 93 10 -130 3 50 o-Toluidine 100 68.0 ug/L 68 38 -130 4 50 p-Dimethylamino azobenzene 100 76.8 ug/L 77 52 -130 0 50 Parathion 100 88.4 ug/L 88 28 -130 2 50 LCSD LCSD Surrogate %Recovery Qualifier Limits 2,4, 6-Tribromophenol (Surr) 73 39 -124 2-Fluorobiphenyl (Surr) 71 32-113 2-Fluorophenol (Surr) 51 26 -109 Nitrobenzene-d5 (Surr) 79 32 - 118 Phenol-d5 (Surr) 57 27- 110 Terphenyl-d 14 (Surr) 76 10 - 126 Method: 8081 B/8082A - Organochlorine Pesticides and Polychlorinated Biphenyls by Gas Chromatography Lab Sample ID: MB 680-746957/1-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 747195 Prep Batch: 746957 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 4,4'-DDD <0.0020 0.050 0.0020 ug/L 10/25/22 16:49 10/26/22 21:24 1 4,4'-DDE <0.0010 0.050 0.0010 ug/L 10/25/22 16:49 10/26/22 21:24 1 4,4'-DDT <0.0010 0.050 0.0010 ug/L 10/25/22 16:49 10/26/22 21:24 1 Aldrin <0.0020 0.050 0.0020 ug/L 10/25/22 16:49 10/26/22 21:24 1 Eurofins Savannah Page 20 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Method: 8081 B/8082A - Organochlorine Pesticides and Polychlorinated Biphenyls by Gas Chromatography (Continued) Lab Sample ID: MB 680-746957/1-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 747195 Prep Batch: 746957 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac �. alpha-BHC <0.0010 0.050 0.0010 ug/L 10/25/22 16:49 10/26/22 21:24 1 alpha -Chlordane <0.0050 0.050 0.0050 ug/L 10/25/22 16:49 10/26/22 21:24 1 beta-BHC <0.0020 0.050 0.0020 ug/L 10/25/22 16:49 10/26/22 21:24 1 Chlordane (technical) <0.16 0.50 0.16 ug/L 10/25/22 16:49 10/26/22 21:24 1 delta-BHC <0.0020 0.050 0.0020 ug/L 10/25/22 16:49 10/26/22 21:24 1 Dieldrin <0.0020 0.050 0.0020 ug/L 10/25/22 16:49 10/26/22 21:24 1 Endosulfan 1 <0.0020 0.050 0.0020 ug/L 10/25/22 16:49 10/26/22 21:24 1 Endosulfan 11 <0.0020 0.050 0.0020 ug/L 10/25/22 16:49 10/26/22 21:24 1 Endosulfan sulfate <0.0020 0.050 0.0020 ug/L 10/25/22 16:49 10/26/22 21:24 1 Endrin <0.0010 0.050 0.0010 ug/L 10/25/22 16:49 10/26/22 21:24 1 Endrin aldehyde <0.0040 0.050 0.0040 ug/L 10/25/22 16:49 10/26/22 21:24 1 gamma-BHC (Lindane) <0.0010 0.050 0.0010 ug/L 10/25/22 16:49 10/26/22 21:24 1 gamma -Chlordane <0.0060 0.050 0.0060 ug/L 10/25/22 16:49 10/26/22 21:24 1 Heptachlor <0.0010 0.050 0.0010 ug/L 10/25/22 16:49 10/26/22 21:24 1 Heptachlor epoxide <0.0020 0.050 0.0020 ug/L 10/25/22 16:49 10/26/22 21:24 1 Methoxychlor <0.0020 0.050 0.0020 ug/L 10/25/22 16:49 10/26/22 21:24 1 PCB-1016 <0.32 1.0 0.32 ug/L 10/25/22 16:49 10/26/22 21:24 1 PCB-1221 <0.34 1.0 0.34 ug/L 10/25/22 16:49 10/26/22 21:24 1 PCB-1232 <0.34 1.0 0.34 ug/L 10/25/22 16:49 10/26/22 21:24 1 PCB-1242 <0.34 1.0 0.34 ug/L 10/25/22 16:49 10/26/22 21:24 1 PCB-1248 <0.34 1.0 0.34 ug/L 10/25/22 16:49 10/26/22 21:24 1 PCB-1254 <0.34 1.0 0.34 ug/L 10/25/22 16:49 10/26/22 21:24 1 PCB-1260 <0.34 1.0 0.34 ug/L 10/25/22 16:49 10/26/22 21:24 1 Toxaphene <0.31 5.0 0.31 ug/L 10/25/22 16:49 10/26/22 21:24 1 PCB-1262 <0.34 1.0 0.34 ug/L 10/25/22 16:49 10/26/22 21:24 1 Lab Sample ID: LCS 680-746957/2-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 747195 Prep Batch: 746957 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits 4,4'-DDD 0.0400 0.0390 J ug/L 97 30 -130 4,4'-DDE 0.0400 0.0396 J ug/L 99 30 -130 4,4'-DDT 0.0400 0.0385 J ug/L 96 30 -130 Aldrin 0.0400 0.0360 J ug/L 90 30 -130 alpha-BHC 0.0400 0.0364 J ug/L 91 30 -130 alpha -Chlordane 0.0400 0.0375 J ug/L 94 30 -130 beta-BHC 0.0400 0.0367 J ug/L 92 30 -130 delta-BHC 0.0400 0.0401 J ug/L 100 30 -130 Dieldrin 0.0400 0.0389 J ug/L 97 30 -130 Endosulfan 1 0.0400 0.0350 J ug/L 87 30 -130 Endosulfan 11 0.0400 0.0330 J ug/L 82 30 -130 Endosulfan sulfate 0.0400 0.0361 J ug/L 90 30 -130 Endrin 0.0400 0.0415 J ug/L 104 30 -130 Endrin aldehyde 0.0400 0.0344 J ug/L 86 30 -130 gamma-BHC (Lindane) 0.0400 0.0362 J ug/L 91 30 -130 gamma -Chlordane 0.0400 0.0384 J ug/L 96 30 -130 Heptachlor 0.0400 0.0375 J ug/L 94 30 -130 Eurofins Savannah Page 21 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Method: 8081 B/8082A - Organochlorine Pesticides and Polychlorinated Biphenyls by Gas Chromatography (Continued) Lab Sample ID: LCS 680-746957/2-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 747195 Prep Batch: 746957 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits �. Heptachlor epoxide 0.0400 0.0379 J ug/L 95 30 -130 Methoxychlor 0.0400 0.0422 J ug/L 105 30 -130 LCS LCS Surrogate %Recovery Qualifier Limits DCB Decachlorobiphenyl 89 30 - 130 Tetrachloro-m-xylene 77 30 - 130 Lab Sample ID: LCS 680-746957/4-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 747195 Prep Batch: 746957 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits PCB-1016 2.40 1.17 ug/L 49 30 -130 PCB-1260 2.40 1.57 ug/L 66 30 -130 LCS LCS Surrogate %Recovery Qualifier Limits DCB Decachlorobiphenyl 59 30- 130 Tetrachloro-m-xylene 47 30 - 130 Lab Sample ID: LCSD 680-74695713-A Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA Analysis Batch: 747195 Prep Batch: 746957 Spike LCSD LCSD %Rec RPD Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit 4,4'-DDD 0.0400 0.0400 J ug/L 100 30 -130 3 40 4,4'-DDE 0.0400 0.0399 J ug/L 100 30 -130 1 40 4,4'-DDT 0.0400 0.0398 J ug/L 100 30 -130 3 40 Aldrin 0.0400 0.0366 J ug/L 92 30 -130 2 40 alpha-BHC 0.0400 0.0358 J ug/L 90 30 -130 2 40 alpha -Chlordane 0.0400 0.0372 J ug/L 93 30 -130 1 40 beta-BHC 0.0400 0.0380 J ug/L 95 30 -130 3 40 delta-BHC 0.0400 0.0407 J ug/L 102 30 -130 1 40 Dieldrin 0.0400 0.0379 J ug/L 95 30 -130 3 40 Endosulfan 1 0.0400 0.0350 J ug/L 87 30 -130 0 40 Endosulfan 11 0.0400 0.0339 J ug/L 85 30 -130 3 40 Endosulfan sulfate 0.0400 0.0414 J ug/L 104 30 -130 14 40 Endrin 0.0400 0.0421 J ug/L 105 30 -130 1 40 Endrin aldehyde 0.0400 0.0346 J ug/L 87 30 -130 1 40 gamma-BHC (Lindane) 0.0400 0.0360 J ug/L 90 30 -130 1 40 gamma -Chlordane 0.0400 0.0385 J ug/L 96 30 -130 0 40 Heptachlor 0.0400 0.0371 J ug/L 93 30 -130 1 40 Heptachlor epoxide 0.0400 0.0378 J ug/L 95 30 -130 0 40 Methoxychlor 0.0400 0.0500 ug/L 125 30 -130 17 40 LCSD LCSD Surrogate %Recovery Qualifier Limits DCB Decachlorobiphenyl 92 30- 130 Eurofins Savannah Page 22 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14769 Job ID: 680-223931-1 Method: 8081 B/8082A - Organochlorine Pesticides and Polychlorinated Biphenyls by Gas Chromatography (Continued) Lab Sample ID: LCSD 680-746957/3-A Matrix: Water Analysis Batch: 747195 LCSD LCSD Surrogate %Recovery Qualifier Tetrachloro-m-xylene 78 Lab Sample ID: LCSD 680-74695715-A Matrix: Water Analysis Batch: 747195 Analyte PCB-1016 PCB-1260 LCSD LCSD Surrogate %Recovery Qualifier DCB Decachlorobiphenyl 88 Tetrachloro-m-xylene 77 Method: 8151A - Herbicides (GC) Lab Sample ID: MB 680-747004/1-A Matrix: Water Analysis Batch: 747468 Analyte Silvex (2,4,5-TP) 2,4,5-T 2,4-D Pentachlorophenol Dinoseb MB MB Result Qualifier <0.096 <0.14 <0.18 <0.023 <0.10 MB MB Surrogate %Recovery Qualifier DCAA 73 p Lab Sample ID: LCS 680-747004/2-A Matrix: Water Analysis Batch: 747468 Analyte Silvex (2,4,5-TP) 2,4,5-T 2,4-D Pentachlorophenol Dinoseb Surrogate DCAA LCS LCS %Recovery Qualifier 128 Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 746957 Limits 30-130 Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA Prep Batch: 746957 Spike LCSD LCSD %Rec RPD Added Result Qualifier Unit D %Rec Limits RPD Limit 2.40 1.94 *1 ug/L 81 30 -130 50 40 2.40 2.31 ug/L 96 30 -130 38 40 Limits 30 - 130 30 - 130 Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 747004 RL MDL Unit D Prepared Analyzed Dil Fac 0.85 0.096 ug/L 10/25/22 21:49 10/28/22 15:44 1 0.85 0.14 ug/L 10/25/22 21:49 10/28/22 15:44 1 1.1 0.18 ug/L 10/25/22 21:49 10/28/22 15:44 1 0.25 0.023 ug/L 10/25/22 21:49 10/28/22 15:44 1 0.50 0.10 ug/L 10/25/22 21:49 10/28/22 15:44 1 Limits 26-137 Prepared Analyzed Dil Fac 10/25/22 21:49 10/28/22 15:44 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 747004 Spike LCS LCS %Rec Added Result Qualifier Unit D %Rec Limits 1.60 1.61 ug/L 100 31-144 1.60 1.67 ug/L 105 11 -130 6.40 5.81 ug/L 91 21 -147 1.60 1.52 ug/L 95 32-136 6.40 6.70 ug/L 105 10 -141 Limits 26-137 0 Eurofins Savannah Page 23 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Method: 8151A - Herbicides (GC) (Continued) Lab Sample ID: LCSD 680-747004/3-A Client Sample ID: Lab Control Sample Dup Matrix: Water Prep Type: Total/NA Analysis Batch: 747468 Prep Batch: 747004 Spike LCSD LCSD %Rec RPD Analyte Added Result Qualifier Unit D %Rec Limits RPD Limit Silvex (2,4,5-TP) 1.60 1.39 ug/L 87 31 -144 14 50 2,4,5-T 1.60 1.52 ug/L 95 11 -130 9 50 2,4-D 6.40 5.39 ug/L 84 21 -147 7 50 Pentachlorophenol 1.60 1.37 ug/L 86 32 -136 10 50 Dinoseb 6.40 5.57 ug/L 87 10-141 19 50 LCSD LCSD Surrogate %Recovery Qualifier Limits DCAA 117 26-137 Method: 6010D - Metals (ICP) Lab Sample ID: MB 680-747010/1-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total Recoverable Analysis Batch: 747234 Prep Batch: 747010 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Vanadium <1.0 10 1.0 ug/L 10/26/22 05:41 10/26/22 16:52 1 Zinc 42.2 20 8.7 ug/L 10/26/22 05:41 10/26/22 16:52 1 Cadmium <0.44 5.0 0.44 ug/L 10/26/22 05:41 10/26/22 16:52 1 Beryllium <0.30 4.0 0.30 ug/L 10/26/22 05:41 10/26/22 16:52 1 Barium <4.4 10 4.4 ug/L 10/26/22 05:41 10/26/22 16:52 1 Nickel 4.22 J 40 3.3 ug/L 10/26/22 05:41 10/26/22 16:52 1 Silver <1.5 10 1.5 ug/L 10/26/22 05:41 10/26/22 16:52 1 Arsenic <6.4 20 6.4 ug/L 10/26/22 05:41 10/26/22 16:52 1 Copper <3.2 20 3.2 ug/L 10/26/22 05:41 10/26/22 16:52 1 Lead <6.6 10 6.6 ug/L 10/26/22 05:41 10/26/22 16:52 1 Tin <11 50 11 ug/L 10/26/22 05:41 10/26/22 16:52 1 Selenium <10 20 10 ug/L 10/26/22 05:41 10/26/22 16:52 1 Chromium <1.1 10 1.1 ug/L 10/26/22 05:41 10/26/22 16:52 1 Cobalt <1.4 10 1.4 ug/L 10/26/22 05:41 10/26/22 16:52 1 Lab Sample ID: LCS 680-747010/2-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total Recoverable Analysis Batch: 747234 Prep Batch: 747010 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits Vanadium 99.8 98.0 ug/L 98 80 -120 Zinc 100 96.2 ug/L 96 80 -120 Cadmium 50.0 49.3 ug/L 99 80 -120 Beryllium 50.0 49.4 ug/L 99 80 -120 Barium 100 101 ug/L 101 80-120 Nickel 99.0 101 ug/L 102 80 -120 Silver 50.0 49.4 ug/L 99 80 -120 Arsenic 100 101 ug/L 101 80 -120 Copper 100 110 ug/L 110 80-120 Lead 505 492 ug/L 97 80-120 Tin 100 98.1 ug/L 98 80 -120 Selenium 100 97.7 ug/L 97 80 -120 Chromium 100 101 ug/L 101 80 -120 Eurofins Savannah Page 24 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14769 Job ID: 680-223931-1 Method: 6010D - Metals (ICP) (Continued) Lab Sample ID: LCS 680-747010/2-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total Recoverable Analysis Batch: 747234 Prep Batch: 747010 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits Cobalt 50.0 48.5 ug/L 97 80 -120 Lab Sample ID: MB 680-748027/1-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total Recoverable Analysis Batch: 748580 Prep Batch: 748027 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Vanadium <1.0 10 1.0 ug/L 11/01/22 05:27 11/02/22 20:28 1 Zinc <8.7 20 8.7 ug/L 11/01/22 05:27 11/02/22 20:28 1 Cadmium <0.44 5.0 0.44 ug/L 11/01/22 05:27 11/02/22 20:28 1 Beryllium <0.30 4.0 0.30 ug/L 11/01/22 05:27 11/02/22 20:28 1 Barium <4.4 10 4.4 ug/L 11/01/22 05:27 11/02/22 20:28 1 Nickel <3.3 40 3.3 ug/L 11/01/22 05:27 11/02/22 20:28 1 Silver <1.5 10 1.5 ug/L 11/01/22 05:27 11/02/22 20:28 1 Arsenic <6.4 20 6.4 ug/L 11/01/22 05:27 11/02/22 20:28 1 Copper <3.2 20 3.2 ug/L 11/01/22 05:27 11/02/22 20:28 1 Lead <6.6 10 6.6 ug/L 11/01/22 05:27 11/02/22 20:28 1 Selenium <10 20 10 ug/L 11/01/22 05:27 11/02/22 20:28 1 Chromium <1.1 10 1.1 ug/L 11/01/22 05:27 11/02/22 20:28 1 Cobalt <1.4 10 1.4 ug/L 11/01/22 05:27 11/02/22 20:28 1 Lab Sample ID: LCS 680-748027/2-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total Recoverable Analysis Batch: 748580 Prep Batch: 748027 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits Vanadium 99.8 98.9 ug/L 99 80 -120 Zinc 100 96.3 ug/L 96 80 -120 Cadmium 50.0 49.0 ug/L 98 80 -120 Beryllium 50.0 49.7 ug/L 99 80 -120 Barium 100 105 ug/L 105 80-120 Nickel 99.0 102 ug/L 103 80 -120 Silver 50.0 48.2 ug/L 96 80 -120 Arsenic 100 95.8 ug/L 96 80 -120 Copper 100 107 ug/L 107 80-120 Lead 505 497 ug/L 98 80-120 Selenium 100 93.4 ug/L 93 80 -120 Chromium 100 102 ug/L 102 80 -120 Cobalt 50.0 49.1 ug/L 98 80 -120 Method: 6020B - Metals (ICP/MS) Lab Sample ID: MB 680-747011/1-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total Recoverable Analysis Batch: 747237 Prep Batch: 747011 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony <0.52 5.0 0.52 ug/L 10/26/22 05:41 10/26/22 16:32 1 Thallium <0.26 1.0 0.26 ug/L 10/26/22 05:41 10/26/22 16:32 1 Eurofins Savannah Page 25 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14769 Method: 6020B - Metals (ICP/MS) (Continued) Lab Sample ID: LCS 680-747011/2-A Matrix: Water Analysis Batch: 747237 Analyte Selenium Antimony Thallium Lab Sample ID: MB 680-748028/1-A Matrix: Water Analysis Batch: 748587 MB MB Analyte Result Qualifier Antimony <0.52 Thallium <0.26 FLab Sample ID: LCS 680-748028/2-A Matrix: Water Analysis Batch: 748587 Analyte Antimony Thallium Spike Added 100 50.0 50.0 Job ID: 680-223931-1 Client Sample ID: Lab Control Sample Prep Type: Total Recoverable Prep Batch: 747011 LCS LCS %Rec Result Qualifier Unit D %Rec Limits 109 ug/L 109 80-120 53.5 ug/L 107 80 -120 53.8 ug/L 108 80 -120 Client Sample ID: Method Blank Prep Type: Total Recoverable Prep Batch: 748028 RL MDL Unit D Prepared Analyzed Dil Fac 5.0 0.52 ug/L 11 /01 /22 05:27 11 /02/22 18:30 1 1.0 0.26 ug/L 11 /01 /22 05:27 11 /02/22 18:30 1 Client Sample ID: Lab Control Sample Prep Type: Total Recoverable Prep Batch: 748028 Spike LCS LCS %Rec Added Result Qualifier Unit D %Rec Limits 50.0 50.0 ug/L 100 80 - 220 50.0 49.6 ug/L 99 80 -120 Method: 7470A - Mercury (CVAA) Lab Sample ID: MB 680-761512/1-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 761592 Prep Batch: 761512 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Mercury <0.080 0.20 0.080 ug/L 02/01/23 09:50 02/01/23 15:27 1 Lab Sample ID: LCS 680-761512/2-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total/NA Analysis Batch: 761592 Prep Batch: 761512 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits Mercury 2.50 2.44 ug/L 98 80-120 Method: 4500 S2 F-2011 - Sulfide, Total Lab Sample ID: MB 680-747148/1 Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 747148 MB MB Analyte Result Qualifier RL RL Unit D Prepared Analyzed Dil Fac Sulfide <1.0 1.0 1.0 mg/L 10/26/2213:35 1 Eurofins Savannah Page 26 of 55 2/2/2023 (Rev. 3) QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14769 Method: 4500 S2 F-2011 - Sulfide, Total (Continued) Lab Sample ID: LCS 680-747148/2 Matrix: Water Analysis Batch: 747148 Spike Analyte Added Sulfide 10.0 Lab Sample ID: LCSD 680-747148/3 Matrix: Water Analysis Batch: 747148 Spike Analyte Added Sulfide 10.0 Method: 9012B - Cyanide, Total andor Amenable Lab Sample ID: MB 680-748075/1-A Matrix: Water Analysis Batch: 748145 MB MB Analyte Result Qualifier Cyanide, Total <0.0025 FLab Sample ID: LCS 680-748075/2-A Matrix: Water Analysis Batch: 748145 Analyte Cyanide, Total Job ID: 680-223931-1 Client Sample ID: Lab Control Sample Prep Type: Total/NA LCS LCS %Rec Result Qualifier Unit D %Rec Limits 8.95 mg/L 90 75 -125 Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA LCSD LCSD %Rec RPD Result Qualifier Unit D %Rec Limits RPD Limit 8.66 mg/L 87 75 -125 3 30 Client Sample ID: Method Blank Prep Type: Total/NA Prep Batch: 748075 RL MDL Unit D Prepared Analyzed Dil Fac 0.010 0.0025 mg/L 11/01/22 08:36 11/01/22 12:49 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA Prep Batch: 748075 Spike LCS LCS %Rec Added Result Qualifier Unit D %Rec Limits 0.0500 0.0487 mg/L 97 85 -115 Page 27 of 55 Eurofins Savannah 2/2/2023 (Rev. 3) QC Association Summary Client: Environmental Conservation Laboratories Project/Site: CF14769 GC/MS VOA Analysis Batch: 591652 Job ID: 680-223931-1 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total/NA Water 8260D SIM MB 280-591652/6 Method Blank Total/NA Water 8260D SIM LCS 280-591652/3 Lab Control Sample Total/NA Water 8260D SIM LCSD 280-591652/4 Lab Control Sample Dup Total/NA Water 8260D SIM Analysis Batch: 598413 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224103-1 4103/12-SW5 Total/NA Water 8260D SIM MB 400-598413/6 Method Blank Total/NA Water 8260D SIM LCS 400-598413/1004 Lab Control Sample Total/NA Water 8260D SIM GC/MS Semi VOA Prep Batch: 746985 Lab Sample ID Client Sample ID 680-223931-1 4103-M W 13 MB 680-746985/13-A Method Blank LCS 680-746985/16-A Lab Control Sample LCSD 680-746985/17-A Lab Control Sample Dup Analysis Batch: 747438 Lab Sample ID Client Sample ID 680-223931-1 4103-M W 13 MB 680-746985/13-A Method Blank LCS 680-746985/16-A Lab Control Sample LCSD 680-746985/17-A Lab Control Sample Dup GC Semi VOA Prep Batch: 746957 Prep Type Matrix Method Prep Batch Total/NA Water 3520C Total/NA Water 3520C Total/NA Water 3520C Total/NA Water 3520C Prep Type Matrix Method Prep Batch Total/NA Water 8270E 746985 Total/NA Water 8270E 746985 Total/NA Water 8270E 746985 Total/NA Water 8270E 746985 Lab Sample ID Client Sample ID Prep Type Matrix Method 680-223931-1 4103-MW13 Total/NA Water 3510C MB 680-746957/1-A Method Blank Total/NA Water 3510C LCS 680-746957/2-A Lab Control Sample Total/NA Water 3510C LCS 680-746957/4-A Lab Control Sample Total/NA Water 3510C LCSD 680-746957/3-A Lab Control Sample Dup Total/NA Water 3510C LCSD 680-746957/5-A Lab Control Sample Dup Total/NA Water 3510C Prep Batch: 747004 Lab Sample ID Client Sample ID Prep Type Matrix Method 680-223931-1 4103-MW13 Total/NA Water 8151A MB 680-747004/1-A Method Blank Total/NA Water 8151A LCS 680-747004/2-A Lab Control Sample Total/NA Water 8151A LCSD 680-747004/3-A Lab Control Sample Dup Total/NA Water 8151A Analysis Batch: 747195 Prep Batch Prnn Ra4rh Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total/NA Water 8081 B/8082A 746957 MB 680-746957/1-A Method Blank Total/NA Water 8081 B/8082A 746957 LCS 680-746957/2-A Lab Control Sample Total/NA Water 8081 B/8082A 746957 LCS 680-746957/4-A Lab Control Sample Total/NA Water 8081 B/8082A 746957 LCSD 680-746957/3-A Lab Control Sample Dup Total/NA Water 8081 B/8082A 746957 Eurofins Savannah Page 28 of 55 2/2/2023 (Rev. 3) QC Association Summary Client: Environmental Conservation Laboratories Project/Site: CF14769 GC Semi VOA (Continued) Analysis Batch: 747195 (Continued) Lab Sample ID Client Sample ID LCSD 680-746957/5-A Lab Control Sample Dup Analysis Batch: 747468 Lab Sample ID Client Sample ID 680-223931-1 4103-M W 13 MB 680-747004/1-A Method Blank LCS 680-747004/2-A Lab Control Sample LCSD 680-747004/3-A Lab Control Sample Dup Metals Prep Batch: 747010 Prep Type Matrix Total/NA Water Prep Type Matrix Total/NA Water Total/NA Water Total/NA Water Total/NA Water Job ID: 680-223931-1 Method Prep Batch 8081B/8082A 746957 Method 8151 A 8151 A 8151 A 8151 A Prep Batch 747004 747004 747004 747004 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total Recoverable Water 3005A MB 680-747010/1-A Method Blank Total Recoverable Water 3005A LCS 680-747010/2-A Lab Control Sample Total Recoverable Water 3005A Prep Batch: 747011 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total Recoverable Water 3005A MB 680-747011/1-A Method Blank Total Recoverable Water 3005A LCS 680-747011/2-A Lab Control Sample Total Recoverable Water 3005A Analysis Batch: 747234 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total Recoverable Water 6010D 747010 MB 680-747010/1-A Method Blank Total Recoverable Water 6010D 747010 LCS 680-747010/2-A Lab Control Sample Total Recoverable Water 6010D 747010 Analysis Batch: 747237 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total Recoverable Water 6020B 747011 MB 680-747011/1-A Method Blank Total Recoverable Water 6020B 747011 LCS 680-747011/2-A Lab Control Sample Total Recoverable Water 6020B 747011 Prep Batch: 748027 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224103-1 4103/12-SW5 Total Recoverable Water 3005A MB 680-748027/1-A Method Blank Total Recoverable Water 3005A LCS 680-748027/2-A Lab Control Sample Total Recoverable Water 3005A Prep Batch: 748028 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224103-1 4103/12-SW5 Total Recoverable Water 3005A MB 680-748028/1-A Method Blank Total Recoverable Water 3005A LCS 680-748028/2-A Lab Control Sample Total Recoverable Water 3005A Analysis Batch: 748580 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224103-1 4103/12-SW5 Total Recoverable Water 6010D 748027 MB 680-748027/1-A Method Blank Total Recoverable Water 6010D 748027 Page 29 of 55 Eurofins Savannah 2/2/2023 (Rev. 3) QC Association Summary C Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Metals (Continued) Analysis Batch: 748580 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch LCS 680-748027/2-A Lab Control Sample Total Recoverable Water 6010D 748027 Analysis Batch: 748587 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224103-1 4103/12-SW5 Total Recoverable Water 6020B 748028 MB 680-748028/1-A Method Blank Total Recoverable Water 6020B 748028 LCS 680-748028/2-A Lab Control Sample Total Recoverable Water 6020B 748028 Prep Batch: 761512 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total/NA Water 7470A MB 680-761512/1-A Method Blank Total/NA Water 7470A LLCS 680-761512/2-A Lab Control Sample Total/NA Water 7470A Analysis Batch: 761592 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total/NA Water 7470A 761512 MB 680-761512/1-A Method Blank Total/NA Water 7470A 761512 LCS 680-761512/2-A Lab Control Sample Total/NA Water 7470A 761512 General Chemistry Analysis Batch: 747148 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total/NA Water 4500 S2 F-2011 MB 680-747148/1 Method Blank Total/NA Water 4500 S2 F-2011 LCS 680-747148/2 Lab Control Sample Total/NA Water 4500 S2 F-2011 LCSD 680-747148/3 Lab Control Sample Dup Total/NA Water 4500 S2 F-2011 Prep Batch: 748075 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total/NA Water 9012B MB 680-748075/1-A Method Blank Total/NA Water 9012B LCS 680-748075/2-A Lab Control Sample Total/NA Water 9012B Analysis Batch: 748145 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-223931-1 4103-MW13 Total/NA Water 9012B 748075 MB 680-748075/1-A Method Blank Total/NA Water 9012B 748075 LCS 680-748075/2-A Lab Control Sample Total/NA Water 9012B 748075 Eurofins Savannah Page 30 of 55 2/2/2023 (Rev. 3) Lab Chronicle Client: Environmental Conservation Laboratories Project/Site: CF14769 Job ID: 680-223931-1 Client Sample ID: 4103-MW13 Lab Sample ID: 680-223931-1 Date Collected: 10/18/22 13:15 Matrix: Water Date Received: 10/25/22 08:00 Batch Prep Type Type Batch Method Dil Run Factor Initial Amount Final Amount Batch Number Prepared or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 1 5 mL 5 mL 591652 10/28/22 18:23 GO EET DEN Instrument ID: VMS E Total/NA Prep 3520C 1021.8 mL 1 mL 746985 10/25/22 23:00 IR EET SAV Total/NA Analysis 8270E 1 1 mL 1 mL 747438 10/28/22 03:11 TIC EET SAV Instrument ID: CMSG Total/NA Prep 3510C 259.6 mL 1 mL 746957 10/25/22 16:49 LA EET SAV • Total/NA Analysis 8081 B/8082A 1 0 mL 1.0 mL 747195 10/26/22 22:54 JCK EET SAV Instrument ID: CSGJ Total/NA Prep 8151A 135.7 mL 5 mL 747004 10/25/22 21:49 KID EET SAV Total/NA Analysis 8151A 1 1 mL 1 mL 747468 10/28/22 18:59 JCK EET SAV Instrument ID: CSGS Total Recoverable Prep 3005A 50 mL 50 mL 747010 10/26/22 05:41 RR EET SAV Total Recoverable Analysis 6010D 1 747234 10/26/22 17:32 BJB EET SAV Instrument ID: ICPH Total Recoverable Prep 3005A 50 mL 250 mL 747011 10/26/22 05:41 RR EET SAV Total Recoverable Analysis 6020B 1 747237 10/26/22 17:07 BWR EET SAV Instrument ID: ICPMSD Total/NA Prep 7470A 50 mL 50 mL 761512 02/01/23 10:22 BCB EET SAV Total/NA Analysis 7470A 1 761592 02/01/23 15:54 BCB EET SAV Instrument ID: LEEMAN2 Total/NA Analysis 4500 S2 F-2011 1 250 mL 250 mL 747148 10/26/22 13:35 JAS EET SAV Instrument ID: NoEquip Total/NA Prep 9012B 6 mL 6 mL Total/NA Analysis 9012B 1 Instrument ID: KONELAB4 Client Sample ID: 4103/12-SW5 Date Collected: 10/21/22 09:20 Date Received: 10/27/22 08:00 748075 11/01/22 08:36 JAS EET SAV 748145 11/01/22 12:38 JAS EET SAV Lab Sample ID: 680-224103-1 Matrix: Water Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 1 5 mL 5 mL 598413 10/30/22 15:29 AGW EET PEN Instrument ID: Curie Total Recoverable Prep 3005A 50 mL 50 mL 748027 11/01/22 05:27 RR EET SAV Total Recoverable Analysis 6010D 1 748580 11/02/22 21:13 BCB EET SAV Instrument ID: ICPH Total Recoverable Prep 3005A 50 mL 250 mL 748028 11/01/22 05:27 RR EET SAV Total Recoverable Analysis 6020B 1 748587 11/02/22 18:44 BJB EET SAV Instrument ID: ICPMSD Laboratory References: EET DEN = Eurofins Denver, 4955 Yarrow Street, Arvada, CO 80002, TEL (303)736-0100 EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL (850)474-1001 EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 Page 31 of 55 Eurofins Savannah 2/2/2023 (Rev. 3) SENDING LABORATORY: F,NCO Cary 102-A Woodwinds Industi ial Court Cary, NC 27511 Phone 919 467 3090 Fax 919 467 3515 Project Manager Amanda L -Gaines SUBCONTRACT ORDER L(5 C VVV ENCO Cary CF14769 �(y—) RECEIVING LABORATORY: Test America (GA) 5102 LaRoche Avenue Savannah, GA 31404 Phone (912)354-7858 Fax. -0 Project State of Ot igm• North Carolina Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103-M W 13 Ground Water 18-Oct-22 13:15 8081B Appendix 2 31-Oct-22 1500 8082A Appendix 2 31-Oct-22 1500 8 15 IA Appendix 2 31-Oct-22 1500 8260D SIM ID 31-Oct-22 1500 8270E Appendix 2 31-Oct-22 1500 Antimony Total EPA 6020B 31-Oct-22 1500 Arsenic Total EPA 601 OD 31-Oct-22 1500 Barium Total EPA 601 OD 31-Oct-22 1500 Beryllium Total EPA 6010D 31-Oct-22 1500 CadmiumTotal EPA 601OD 31-Oct-22 1500 Chromium Total EPA 601 OD 31-Oct-22 1500 Cobalt Total EPA 6010D 31-Oct-22 1500 Copper Ibtal EPA 601 OD 31-Oct-22 1500 Cyanide lotal 9014 31-Oct-22 1500 Lead Total EPA 601 OD 31-Oc1-22 1500 Mercury Total EPA 7000 (Upda3 I -Oct-22 1500 Nickel Total EPA 601OD 31-Oct-22 1500 Selenium Total EPA6010D 31-Oct-22 1500 Selenium Total FPA 6020E 31-Oct-22 1500 Silver Total EPA 601OD 31-Oct-22 1500 Sulfide SM4500-S D 31-00-22 1500 Thalhum Total EPA 6020B 31-Oct-22 1500 Tin'lo(al EPA6010D 31-Oct-22 1500 Vanadium Total EPA 601 OD 31-Oct-22 1500 Zinc Total EPA 601 OD 31-Oct-22 1500 Conlmnei s Srq)phed ILA(A) 250mL,P+I-IN03 (F) 40mLV+I ICI (N) 250mt A (B) 250mLP+Na01-1 (G) 25-Oct-22 13 15 lip i , 18-Oct-23 13 15 tvS 25-0ct-22 13 15 V/ 01-Nov-221315ORL 25-Oct-22 13 15 r �� 16-Apr-23 13 15 _ 16-Apr-23 13 15 ► , �� 16-Apr-23 13 15 16-Apr-23 13 15 16-Apr-23 13 15 16-Apr-23 13 15 16-Apr-23 13 15 16-Apr-23 13 15 01-Nov-22 13 15 Cs 16-Apr-23 13 15 15-Nov-22 13 15 16-Apr-23 13 15 16-Apr-23 13 15 16-Apr-23 13 15 16-Api--23 13 15 1 25-Oct-22 13 15 A0 16-Apr-23 13 15 16-Apr-23 13 15 16-Apr-23 13 15 16-Api-23 13 15 IIIIII!III�I�II�IIIIIVII�II''�IIIIIIIIIIII'�III 250mLA (C) 250mLA (D) 250mLA (PEST) (E) 250mLP+7nAc+NaOH (I-1) 40mLV+l-ICI (L) 40mLV+HCI (M) Recei .e 9,9 By Page I of I Page 32 of 55 2/2/2023 (Rev. 3) SUBCONTRACT ORDER Analysis: 8081 B Appendix 2 Units ug/L Calculation Options ❑ Dry -weight correct MDL/MRL ❑ Dry -weight correct results -1 Report results to MDL ❑ Report results to MRL os ENCO Cary CF14769 Custom Analysis Settings Flags Synchronize with Base Method ❑ B ❑X MDL ❑ Flag Levels ❑ D ❑X MRL X❑ SUR Limit ❑ E ❑X # ❑X QC Limits ❑ J ❑X Rpt ❑X Analyte Into ❑ U Matrix: Water 0 50 50 50 150 Released By Date Received By Date Released By Date Received By Date Pa«e 2 of I I Page 33 of 55 2/2/M23 (Rev. 3) SUBCONTRACT ORDER ENCO Cary CF14769 Custom Analysis Settings Analysis: 8081 B Appendix 2 Matrix: Water Units: ug/L Flags Calculation Options Synchronize with Base Method ❑ B ❑ Dry -weight correct MDL/MRL X❑ MDL ❑ Flag Levels ❑ D ❑ Diy-weiglit correct results ❑X MRL 0 SUR Limit ❑ E X❑ Report results to MDL X❑ # ❑X QC Limits ❑ J ❑ Report results to MRL X❑ Rpt ❑X Analyte Info ❑ U Analvte Info DBC Releia-scd By Date -- 0 Released By Date Received By Date Page 34 of 55 2/0621 Rev. 3) SUBCONTRACT ORDER ENCO Cary CFl4769 Custom Analysis Settings Analysis: 8082AAppendix 2 Matrix: Water Units ug/L Calculation Options ❑ Dry -weight correct MDL/MRL ❑ Dry-wetglit correct results vj Report results to MDL ❑ Report results to MRL Analyte Info Flags Synchronize wah Base Method ❑ B QX MDL ❑ Flag Levels ❑ D XJ MRL ❑X SUR Linut ❑ E 0 # X❑ QC Limits ❑ J XD Rpt ❑X Analyte Info ❑ U PCB-1016 048 05 PCB-101612C1 048 05 PC 13-1242 048 05 0 11CB-1242 12C I 049 05 PCB- 1016/1242 X X 048 05 2 43 123 23 43 123 13CB-1016/1242 [2C 1 048 05 2 PCB-1262 043 05 PCB 1262 [2C] 043 0 5 PCB-1268 043 05 PCB- 1016-2 12C) PCB-1016-3 PCB-1016-3 [2C] PCB-1016-4 PCB-1016-4 [2C] PCB-1016-5 PCB-1016-5 12CI PCB- 1016/1242-1 PCB-1016/ 1242-3 [2C] PCB-1016/ 1242-4 PCB- 1016/1242-4 [2C1 PC13-1016/1242-5 PCB-1221-2 PCB 1221 2 [2C] R„luised By Date Received By Date Released By Date Received By Date Pae d of I I Page 35 of 55 2/2/2623 (Rev. 3) SUBCONTRACT ORDER ENCO Cary CF14769 Custom Analysis Settings Analysis: 8082AAppendix 2 Matrix: Water Units ug/L Flags Calculation Options ❑ Dry -weight correct MDL/MRL Synchronize with Base Method ❑X MDL ❑ Flag Levels ❑ B ❑ D ❑ Dry -weight correct results 0 MRL ❑X SUR Limit ❑ E 0 Report results to MDL X❑ # ❑X QC Limits ❑ J ❑ Report results to MRL ❑X Rpt ❑X Analyte Info ❑ U Analvte Info PCB-1221-3 PCB-1221-3 [2C] 13C 13-I221-4 PCB-1221-4 (2C] PCB-1221-5 PCB-I221-5 [2C PCB-1232-1 PCB-1232-1 [2C] PCB-1232-2 PCB-1232-2 [2C] PCB-1232-3 PCB-1232-3 [2C] PC 13-1232-4 PC 13-1232-4 [2C] PCB-1232-5 1303-1232-5 PCB-1248-1 [2C] PCB-1248-2 PCB-1248-2 [2C] PCB-1248-3 PCB-1254-2 [2C] PCB-1254-3 PCB-1254-3 [2C] PCB-1254-4 PCB- I PCB-1254-5 [2C] PC B-1260-1 PCB-1260-1 [2C] PC13-1260-2 PCB-1260-4 12CI 0 Rcd sud By —Date Rc=ye_d B� Date Released By Date Received By Date Page 5 of I I Page 36 of 55 2/2/2623 (Rev. 3) SUBCONTRACT ORDER ENCO Cary CF14769 Custom Analysis Settings Analysis: 8082AAppendix 2 Matrix: Water Units ug/L Calculation Options ❑ Dry -weight correct MDL/MRL ❑ Dry -weight correct results ❑X Report results to MDL ❑ Report results to MRL Analvte Info PCB-1260-5 PC 13-1262-2 [2C I PCB-1262-3 PCB-1262-3 [2C] PCB- 1262-4 PCB-1268-1 [2C] PCB-1269-2 PCB-1268-2 [2C] PCB-1268-3 PCB-1268-3 [2C] PC 11-1268-4 PCB-1268-4 [20 nr a_i vs_s Flags Synchronize with Base Method ❑ B ❑X MDL ❑ Flag Levels ❑ D X❑ MRL X❑ SUR Limit ❑ E X❑ # 0 QC Limits ❑ J 0 Rpt X❑ Analyte Info ❑ U 0 -fticawd ByDaly Receive <i B�, Date Released By Date Received By Date Page 37 of 55 2/2PW �Kev. 3) SUBCONTRACT ORDER ENCO Cary CF14769 Custom Analysis Settings Analysis: 8151AAppendix 2 Matrix: Water Units ug/L Flags Calculation Options Synchronize with Base Method ❑ B ❑ Dry -weight correct MDL/MRL 0 MDL X❑ Flag Levels ❑ D ❑ Dry -weight correct results 0 MRL 0 SUR Limit ❑ E ❑X Report results to MDL ❑X # X❑ QC Limits ❑ J ❑ Report results to MRL ❑X Rpt 0 Analyte Info ❑ U Anal ate Info Anal tt, QC RAR)i MDL Flag I -lag flag Flag Flag Flag SUR SUR DUP NIS MS MS BS 13S BS I'S 11ti MRL Loy% Lvll 1,02 IA3 Lv14 Lv15 11. UL RPD LL UL RPD LL Ul RPM II H 2 4-D X X 004 0 1 40 139 20 34 197 Pentachlorophenol X 003 0 1 2 4 5-11 (Silvex) X X 004 _ 0 1 245-1' X 003 01 Dinoseb X 006 0 1 2 4-D( AA X X Custom Analysis Settings Analysis: 8260D SIM ID Matrix: Water Units tig/L Flags Calculation Options Synchronize with Base Method ❑ B ❑ Dry -weight correct MDL/MRL 0 MDL ❑ Flag Levels ❑ D ❑ Dry -weight correct results ❑X MRL X❑ SUR Limit ❑ E ❑X Report results to MDL 0 # ❑X QC Limits ❑ J ❑ Report results to MRL X❑ Rpt X❑ Analyte Info ❑ U Analvte Info QC flag Flag Flag Flag Flag Flag SUR SUR DUP MS MS MS BS BS 65 PS I't, Analyte RptRpt NIDL, tv1RL Low LVII Lv12 Lv13 Lv14 Lv15 LL UL RPD LL UL RPD LL UI RPD LI 1 t 44Dioxane X X 08 2 0 001 10 200 50 10 200 Toluene-0 X X 67 139 14-Ditluorohenzene X X 14-Dioxane-d8 X X By Hate Received By Date Released By Date Recei\ ed By Date Pat, 7 of I I Page 38 of 55 2/2/263 (Rev. 3) SUBCONTRACT ORDER C ENCO Cary CF14769 Custom Analysis Settings Analysis: 8270E Appendix 2 Matrix: Water Units Ug(L Calculation Options ❑ Dry -weight correct MDL/MRL ❑ Dly-weight correct results 0 Report results to MDL ❑ Report results to MRL Flags Synchronize with Base Method ❑ B ❑X MDL ❑ Flag Levels ❑ D ❑ MRL ❑X SUR Limit ❑ E X❑ # ❑X QC Limits El J 0 Rpt 0 Analyte Info U 0 Released By Dale Received By Date Released By Date Received By Date Page 8 ol' I I Page 39 of 55 2/2/2023 (Rev. 3) SUBCONTRACT ORDER ENCO Cary CF14769 Custom Analysis Settings Analysis: 8270E Appendix 2 Units ug/L Flags Calculation Options ❑ Dry -weight correct MDL/MRL Synchronize with Base Method ❑X MDL ❑ Flag Levels ❑ B ❑ D ❑ Dry -weight correct results ❑ MRL X❑ SUP, Limit ❑ E ❑X Report results to MDL X❑ # ❑X QC Limtts ❑ J ❑ Report results to MRL ❑X Rpt X❑ Analyte Info ❑ U Matrix: Water 0 Diallate X 19 10 10 Phorate X 21 t0 10 4-13ronmphenyl-1) hen ylelhei' X 24 10 10 49 105 12 49 105 12 Phenacetin X 2 7 10 20 1 3 5-Truulrobenzene X 3 10 t0 Ilexachlowbenzene X 2 3 t0 to 62 114 10 62 114 10 Dimelhoate X 2 3 10 20 4-Ammobiphenyl X 3 5 10 20 Pronamide X 17 10 10 Penlachloronarobenzene X 1 9 10 20 Phcnanthrene X 26 10 10 42 130 25 42 130 25 Disnitoton X 2 10 10 An 2 4 10 10 41 144 26 41 144 26 Relrawd By Date Received By Datc Relea"ed By Date Received By Date Pa-e 9 of I I Page 40 of 55 2/2/2b23 (Rev. 3) SUBCONTRACT ORDER LNCO Cary CFI4769 Custom Analysis Settings Analysis: 8270L Appendix 2 Matrix: Water ro � Units ug/L Flags Calculat►on Options ❑ Dry -weight correct MDL/MRL Synchronize with Base Method X❑ MDL ❑ Flag Levels ❑ B ❑ D ❑ Dry -weight correct results ❑ MRL Q SUR Limit ❑ E ❑X Report results to MDL ❑X # ❑X QC Limits ❑ i ❑ Report results to MRL ❑X Rpt ❑X Analyte Info ❑ U lie Released B� Date Received By _ Date M Released By Date Re(.eiNed By Date Page 10 of I I Page 41 of 55 2/2/2023 (Rev. 3) SUBCONTRACT ORDER ENCO Cary CF14769 Custom Analysis Settings Analysis: Cyanide Total 9014 Matrix: Water Units ug/L Flags Calculation Options Synchronize with Base Method ❑ B ❑ Dry -weight correct MDL/MRL X❑ MDL ❑X Flag Levels ❑ D ❑ Dry -weight correct results X❑ MRL — ❑X SUR Limit ❑ E ❑X Report results to MDL X❑ # ❑X QC Limits ❑ J ❑ Report restilts to MRL X❑ Rpt X❑ Analyte Info ❑ U Analyte Info Qc flag Flag flag Flag flag flag SUR SUR DUP MS MS MS 131; M 131) PS 1'ti lnal -le R tR t \,1DL MRI Lom Lvll 1 02 1-03 1-04 Lvl5 LL UL RPD LL Ul Rill) Ll UL RPD L.I, 111. Cyanide (total) X X 00049 001 25 85 115 20 85 Its 10 Custom Analysis Settings Analysis: Sulfide SM4500-S D Matrix: Water Units ug/L Calculation Options ❑ Dry -weight correct MDL/MRL ❑ Dry -weight correct results ❑X Report results to MDL ❑ Report results to MRL Analvte Info Flags Synchronize with Base Method ❑ B ❑X MDL Q Flag Levels ❑ D IXI MRL ❑X SUR Li nit ❑ g X❑ # ❑X QC Limits ❑ J 0 Rpt 0 Analyte Info ❑ U Sulfide X X 001 01 25 80 120 25 80 120 10 Released B} Date Received By Date Released By Date Received By Dale Pa-eIIotll Page 42 of 55 2/2/2023 (Rev. 3) Page 43rf55 2/2/2023(Rev.3) Sample Preservation Verification ENCO Pary Work Order CF14789 Project White Street LF'Pheae|U FaU U/pnt Qo|derAasor`oh`-, lnr (00007) Project# GL19131339Task 106 L ed In 20D 22 1)07 Logged By Samantha LHy It PnaaemoUonCh \��'/[ ) \\ | Cont Type Pres (pH) Requirement pH Checked / In CoMrol pH Adjusted Dateffirne Adjusted Reagent Used/CornmentF, rY, 250nil P + Na(Xi 12 YJ� N / N A n� NA pH Strip ID L\LL[NNTVz mhwko Pemmvabon{hedk rpt / | | 1 5 4 6 |'/` . 2/2/2023(Rov.3) Page 44of55 SUBCONTRACT ORDER ENCO Cary' l CF16029 SENDING LABORATORY: RECEIVING LABORATORY: ENCO Cary 102-A Woodwinds Industrial Court Cary, NC 27511 Phone 919 467 3090 Fax 919.467 3515 Project Manager: Amanda L. Gaines Test America (GA) 5102 LaRoche Avenue Savannah, GA 31404 Phone .(912) 354-7858 Fax -0 Project State of Origin North Carolina Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103/12-SW5 Surface Water 21-Oct-22 09:20 • A�ralusr . .. ne ... .. E . iAii:. "i&& 8260D SIM ID 0I.Fyf-Nov-22 15 00 04-Nov-22 09 20 .1 Antimony Total EPA 602080 ) 4R-'Nov-22 1500 19-Apr-23 09 20 Arsenic Total EPA 6010D Ql W-Nov-22 1500 19-Apr-23 09 20 Barium Total EPA 6010D p ).4W-Nov-22 1500 19-Apr-23 09 20 Beryllium Total EPA 601 UD IJ j t -Nov-22 1500 19-Apr-23 09 20 Cadmium Total EPA 6010D 61410f-Nov-22 15 00 19-Apr-23 09 20 Chromium Total EPA 601 ODLIJOTNov-22 1500 19-Apr-23 09 20 Cobalt Total EPA 60101) (j )8?-Nov-22 1500 19-Apr-23 09 20 Copper Total EPA 601013 61.K-Nov-22 1500 19-Apr-23 09 20 Lead Total EPA 601 OD o/.W-Nov-22 1500 19-Apr-23 09 20 Nickel Total EPA 601 OD L, kQ#1--Nov-22 1500 19-Apr-23 09 20 Selenium Total EPA 6010D f314W Nov-22 1500 19-Apr-23 09 20 r �. ORL Thallium Total -EPA 6020B p 14YNov--22 15 00 19-Apr-23 09 20 - Vanadium Total EPA 601 OD014;WNov-22 15 00 19-Apr-23 09 20 -Ztnc-Total-9PA- 6010D 6-1OlNow2-215-00 1-9-Apr-2-3-09-20 — — — Containers Supplied 250niLP+HNO3 (A) 40mLV+HCI (E) 40mLV1-HCl (F) 40mLV+HCI (G) CCU, S 5-q /5` Page 45 of 55 Page I of 1 2/2/2023 (Rev. 3) SUBCONTRACT ORDER C ENCO Cary CF16029 Custom Analysis Settings Analysis: 8260D SIM ID Matrix: Water Units ug/L Flags C Calculation Options Synchronize with Base Method ❑ B ❑ Dry -weight correct MDL/MRL ❑X MDL ❑ Flag Levels ❑ D ❑ Dry -weight correct results Q MRL ❑X SUR Li nit ❑ E X❑ Report restilts to MDL ❑X # ❑X QC Limits ❑ J ❑ Report results to MRL ❑X Rpt ❑X Analyte Info ❑ U Anal to Info QC Flag Flag Flag Flag Flag Flag SUR SUR DUP MS MS MS BS BS BS PS PS Anal yte R tR t MDL MRL Low Lvl1 1,02 Lvl3 Lv14 Lvl5 LL Ul, RPD LL UL RPD LL UL RPD LL UI 1 4-Dioxane X X 08 2 p 1_ 10 200 50 10 200 TolueneA8 X X 67 139 1,4-Difluorobeazene X X 14-Dioxane-d8 X a Released By Date Received By Date Released By Date Received By Date Page 2 of 2 Page 46 of 55 2/2/2023 (Rev. 3) XI LI 61 LL La- LJ WI? Page 47of55 2/2/2023(Rev.3) Sample Preservation Verification ENCO Cary Work Order CF16029 Project White Street LF-Phase 111- Fall Client Golder Associates Inc (GO007) Project 4 GLI9131339 Task 106 Logged in 25 Oct-22 09 28 Logged By Samantha L Hyqtt Preservation Check Performed By Date/Tinie CF16029-01 Cont Type Pr&i RtiqUireffiOnt et 1,11-AftIOD'Orbl. pHAdjusted DIAOTIM e . . AdJUSw R"Oerit Used/Comments A 2r)OniL-- +HNO3 2 Y /" N I NA Y /N / NA Reaqent Name ID 2 pH Strip ID( Reagent Name ID 3 4 Reagent Name ID 5 1 6 1 a G , \ELM NT\P r i ntNwkLi—P reservationC beck ipt Page 48 of 55 Page I k 1 1 2/2/2023 (Rev. 3) LA .f (o O N _ r D `oo 9 z d - �Z m m y Z S v oQN C i,m T T T X C000O0❑ N O Z N N a 0 U n E L O O «O w CO N N E xz¢zzzx�¢� u rn G E E E O U U U 0�- 0 ¢` m m ro m'--' 0v �E D a ON CL S t Ouo p O C 2 Q` Oz C 1 U O N 60) # p y0(0 0 z NZzQ W W y O (L dU (0 a CL o (O D_ ¢mU ❑ W LL(7S _�YJ �a m - U Q) sjau!ejuo0;o jagwnN !ejoy X E Q E E ` c W N - \ ro E E E E E E E s o ' d E w w v o o C _ m in o ❑ o rn c ,O c )a O U o a D ~ O L (0 ate+ D N O. to h N U m 0 0) Z L p Z d oJ o L N CL E E N ❑ m o o a U m t d N E CO T l0 O o a o ff a `N U o c v m d E U U c '� O C m 0 u o o m '- ._ N O 0 d m o. c E W i 4 `G y 2 _ a a a E m m O o Z auexo!O-b"L (OOWI JOEOS/WIS 009Z9 X w' '� C� w x U L E N (ON Jo SOA) 4SWISW w.loyad co; V s c y n = D a iq (ON Jo saA) aldweg Paiall!d plan m H a Ta - 0 0 N m L o c A c £ a o U 0 U 0 U m v n Q E o A d N w a m 1. Im m~11 U(1 C, 3 E N L-. EMCv w _ a� W � ^^ e`V N m v a y n m j _ N Q ro o E m .. w � �N v 0 m o E v w w E o O o om v1 E m- " m o d � n m m E m o -• o m - > U c o J W J c .Q a O � L ] = r W .� O J c 0 rn o n r+ O u �2 v O Z Y m U� C L C J ? L E O G9 U m m .° � _ o r G W G O O N U C Y _ O (n LD N U L � 0 O - p M N c D CD '0N N C O V C a) (p O E O Q O- N a w .. N m U 3 o o .. Ern ,CD M a W m- 14 = N d cr n a d (ii 0 _ z d E a L v a) U a E N N N W W- C ch N oM E v m O o Z E .9 U a w a U V � -6 o_ 0 Page 49 of 55 2/2/2023 (Rev. 3) f6 x i lla E O > Q Q U) a) N L CD2 C O L iH � c0 0 J C N 3 0 > O w � 0- r a 00 v - oco° $ o a in n LA m ��a mU Q N L G >.m o o CO o2O S z Q Z z Z= ¢ w C E E E :Ez0a C7w 0H»3TN H u o J E U U U 0 C ! J u w ~ 0 0 c") va0 to °' x U) S a cl a9 0 d .. z.. i� N N Z JO a �x0 0 H¢ N U m - m m E 0 O p L W a oN rn OI C p ra,� ✓'i U O O N 01 rn ai �' y H Sz NZZ 2Qa Op W W `y t v a« O LL a J O 0 U c0 m a a - ° (0 a amUO W u. C9x _�YJ «O a W o � am 5 si8uleju0o;o jagwnN leiol x c E E o L 2 > M d m c W E E .. .-. o. w e E a 0 � O. E o. m « w v L � �i z f0 m m y O - c 'E r o H o m V)`J o rn 0 U c 0cQ 4J ~ 2 d o m= w m U E o N y U p in Z V o Z « - m L y h O N c O E E G N c y m porn am O � N v "= E o o co m a c Q - «O Q N d w N C co N j E U () N C m O c o° N O 2 O 'Pm EW a a a d O U o c oco O c m d d m � u u o ,0 Z auexolO-b�L (OOW) OOCOS/WIS 009ZB X '� G U L (ON io SBA) OSWISW wioIJad c= m o E v1 � E m m < (5 (ON iO so k) aldweg paiaallj plelj u 1— a m o � 0 o„ U - N P" E E m'� O E'� U U Z ' `o E m y E N E L N E c A H II 11 0 N t « N a E o w W K N N CD« N m U E c o v # w o o m ` E E C-J/✓1 Cl)a o O a 3 aID w# � H>.E o d C 0 0 E 0 v - «m oo w U C O J W a J C � O y W �10 r U J a L N «O O X d N L co o L v J A L E O U) U o o v .S ° > N C W c O = _ o N Cl) r M o .� 0 v U o A C o C V m W C O C > C0 O N 0 A O D N N O Y IE C_ O E Q .-• A N c rn N 7 '7 C Z E o 'C 2 E 2 m c �d r U m c O E c m a m 0 O N N y c Of C .. N U 0 U 2 to C m co N c_ y Q c C O ui N N cN I� ti _ Z r y V E a U c m N G y O> d a v C y 4 7 V L U V% E J U W Q M �_ N U a m J (o U- o 0 a m W 'O LL a v A 9 '«^ O C 0, N E W U 0 Page 50 of 55 2/2/2023 (Rev. 3) Login Sample Receipt Checklist Client: Environmental Conservation Laboratories Job Number: 680-223931-1 Login Number: 223931 List Number: 1 Creator: Johnson, Corey M Question List Source: Eurofins Savannah Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. True The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True m Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is N/A <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Eurofins Savannah Page 51 of 55 2/2/2023 (Rev. 3) Login Sample Receipt Checklist Client: Environmental Conservation Laboratories Login Number: 223931 List Number: 2 Creator: Kazenga, Oliver M Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey True meter. The cooler's custody seal, if present, is intact. False Sample custody seals, if present, are intact. True The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? N/A There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Not present Job Number: 680-223931-1 List Source: Eurofins Denver List Creation: 10/26/22 05:23 PM Eurofins Savannah Page 52 of 55 2/2/2023 (Rev. 3) Login Sample Receipt Checklist Client: Environmental Conservation Laboratories Job Number: 680-223931-1 Login Number: 224103 List Number: 1 Creator: Johnson, Corey M Question List Source: Eurofins Savannah Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. True The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True m Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is N/A <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Eurofins Savannah Page 53 of 55 2/2/2023 (Rev. 3) Login Sample Receipt Checklist Client: Environmental Conservation Laboratories Login Number: 224103 List Number: 2 Creator: Whitley, Adrian Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. N/A Sample custody seals, if present, are intact. N/A The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is N/A <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A 1.5, 0.8°C IR8 Job Number: 680-223931-1 List Source: Eurofins Pensacola List Creation: 10/28/22 12:04 PM Eurofins Savannah Page 54 of 55 2/2/2023 (Rev. 3) Accreditation/Certification Summary Client: Environmental Conservation Laboratories Job ID: 680-223931-1 Project/Site: CF14769 Laboratory: Eurofins Savannah The accreditations/certifications listed below are applicable to this report Authority Program Identification Number Expiration Date North Carolina (WW/SW) State 269 12-31-23 Laboratory: Eurofins Denver All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report. Authority Program Identification Number Expiration Date A21-A Dept. of Defense ELAP 2907.01 11-30-22 A21-A ISO/IEC 17025 2907.01 10-31-23 Alabama State Program 40730 09-30-12 Alaska (UST) State 18-001 02-08-23 Arizona State AZ0713 12-20-22 Arkansas DEQ State 19-047-0 05-31-23 California State 2513 01-08-23 Connecticut State PH-0686 09-30-22 Florida NELAP E87667-57 06-30-23 Georgia State 4025-011 01-08-23 Illinois NELAP 2000172019-1 04-30-23 Iowa State IA#370 11-30-22 Kansas NELAP E-10166 04-30-23 Kentucky (WW) State KY98047 12-31-22 Louisiana NELAP 30785 06-30-14 Louisiana NELAP 30785 06-30-23 Louisiana (All) NELAP 30785 06-30-23 Minnesota NELAP 1788752 12-31-22 Nevada State CO000262020-1 07-31-23 New Hampshire NELAP 205319 04-28-23 New Jersey NELAP 190002 06-30-23 New York NELAP 59923 04-01-23 North Carolina (WW/SW) State 358 12-31-22 North Dakota State R-034 01-08-23 Oklahoma NELAP 8614 08-31-23 Oregon NELAP 4025-011 01-09-23 Pennsylvania NELAP 013 07-31-23 South Carolina State 72002001 01-08-23 Texas NELAP TX104704183-08-TX 09-30-09 Texas NELAP T104704183-21-19 09-30-23 US Fish & Wildlife US Federal Programs 058448 07-31-23 USDA US Federal Programs P330-20-00065 03-06-23 Utah NELAP QUAN5 06-30-13 Utah NELAP CO000262019-11 07-31-23 Virginia NELAP 10490 06-14-23 Washington State C583-19 08-03-23 West Virginia DEP State 354 11-30-22 Wisconsin State 999615430 08-31-23 Wyoming (UST) A21-A 2907.01 10-31-22 Laboratory: Eurofins Pensacola The accreditations/certifications listed below are applicable to this report. Authority Program Identification Number Expiration Date North Carolina (WW/SW) State 314 12-31-22 " Accreditation/Certification renewal pending - accreditation/certification considered valid. Eurofins Savannah Page 55 of 55 2/2/2023 (Rev. 3) WSP USA, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 5 Project Name: White Street Landfill — Phase I Project Reference Number. 19131339.106 Sampling Event Date: October 19, 2022 Review Date: February 2, 2023 Report #: CF14768, CF14769 Initials: JS Review. Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates NC, Inc. has reviewed the laboratory certificates of analysis, chain -of -custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: • Region III Modifications to Functional Guidelines for Organic Data Review Multi -Media, Multi -Concentration, September 1994; • Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and • Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility/C & D List X NC Appendix I (VOAs and Metals) NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List Other: 1.0 CHAIN OF CUSTODY (COC) REVIEW JS COC was properly signed by all parties. JS Correct project name and number are on the form. JS Sample receipt condition at laboratory was acceptable. JS Each sample and blank submitted for analysis appears in the report. WSP USA, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 5 2.0 SAMPLE HOLDING TIMES JS Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). y Method SM 4500 S2 F: The following sample was received outside of holding time: 4103- MW13 (680-223931-1). y Method SM 4500 S2 F: The method requirement for no headspace was not met. The following sample was analyzed with headspace in the sample container(s): 4103-MW13 (680-223931-1). Method 7470A: The following sample was prepared outside of preparation holding time. Mercury was missed during the initial login and review: 4103-MW13 (680-223931-1). Review Criteria Method Anal tes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW JS Laboratory analyzed at least one internal blank for each method, where applicable. JS Laboratory blank is interference -free. Method 8081 B/8082A: The RPD of the laboratory control sample (LCS) and laboratory control sample duplicate (LCSD) for preparation batch 680-746957 and analytical batch 680-747195 recovered outside control limits for the following analyte: PCB-1016. Method 601 OD: The method blank for preparation batch 680-747010 contained zinc above the reporting limit (RL). None of the samples associated with this method blank contained the target compound; therefore, re -extraction and/or re -analysis of samples were not performed y Method 601OD: The method blank for preparation batch 680-747010 contained nickel above the method detection limit (MDL). None of the samples associated with this method blank contained the target compound; therefore, re -extraction and/or re -analysis of samples were not performed. JS Surrogate recoveries are provided for each analytical method, where applicable. JS Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). JS MS/MSD/LCS data results are provided for each analytical method. WSP USA, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 5 JS MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). y The 8260D LCS exhibited a high bias for Bromomethane; however, this analyte was not detected in the associated samples. The 8260D LCS exhibited a high bias for Isobutyl alcohol; however, this analyte was not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for Bromomethane and Trichlorofluoromethane; however, these analytes were not detected in the associated samples. Method 8081 B/8082A: The RPD of the laboratory control sample (LCS) and laboratory control sample duplicate (LCSD) for preparation batch 680-746957 and analytical batch 680-747195 recovered outside control limits for the following analyte: PCB-1016. 4.0 ANALYTE LISTS/METHODS JS The proper number of constituents are present for each analyte list as identified above (including detects where applicable). JS Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING JS All analytical reporting associated with the event was performed by the contracted lab JS Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been `flagged' with a `B' where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 1 OX for commonly detected laboratory contaminants -acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. v Nickel and zinc were detected in the laboratory blank and have been marked with a `B' flag. Zinc was detected at concentrations above the PQL. v Method 601 OD: The method blank for preparation batch 680-747010 contained zinc above the reporting limit (RL). None of the samples associated with this method blank contained the target compound; therefore, re -extraction and/or re -analysis of samples were not performed. o Zinc was detected in the method blank and has been blank qualified JS It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 1 Ox resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. ➢ 1, 4 Dioxane was diluted at 5x in 1-1 and 1-2, and by 10x in 1-3. JS The report provides the reporting limit for each constituent. JS The results were reported at or below their proper reporting limits (e.g., MDLs). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. WSP USA, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 4 of 5 y Method 8260D_SIM: The following samples were diluted to bring the concentration of target analytes within the calibration range: 4103-11 (680-224146-1), 4103-12 (680-224146-2) and 4103-13 (680-224146-3). Elevated reporting limits (RLs) are provided. JS No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Interim Maximum Allowable Concentrations (IMACs) in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface water points. NC 2L Exceedances Vinv1 Chloride (NC 2L = 0.03 ua/L • 1-3 @ 0.47 ug/L Y Benzene (NC 2L = 1 uq/L) • 1-1 @ 3.9 ug/L Y 1,4 Dioxane (NC 2L= 3 uq/L) • 1-1 @ 200 ug/L • 1-2 @ 160 ug/L • 1-3 @ 310 ug/L • 1-4 @ 32 ug/L Y 1,4-Dichlorobenzene (NC 2L = 6 uq/L) • 1-1 @ 6.0 ug/L JS No quantifiable inorganic or organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). v Cyanide (3 J ug/L) was detected at an estimated concentration more than 5x the historical maximum (0.0054 ug/L) detected in 2007. This concentration is below the PQL and groundwater standard. Sulfide (1300 ug/L) was detected at a concentration more than 5x the historical maximum (0.45 ug/L) detected in 2007. Sulfide was analyzed out of hold by the laboratory and was non -detect in 2008 and 2009. There is no established groundwater standard for sulfide and the detection should be considered suspect. JS Other report issues/Communications with laboratory/etc.: The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1- Trichloroethane, 1,1-Dichloroethane, 1,1-Dichloroethene, 1,2-Dibromo-3-chloropropane, 1,2-Dichloroethane, 2-Butanone, Acetone, Bromodichloromethane, Carbon tetrachloride, Chloroform, and Vinyl acetate; however, these analytes were not detected in the associated samples. The 8260D LCS exhibited a high bias for Isobutyl alcohol; however, this analyte was not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for Bromomethane and Trichlorofluoromethane; however, these analytes were not detected in the associated samples. y Methods 8270D, 8270E: The following analytes have been identified, in the reference method and/or via historical data, to be poor and/or erratic performers: 1,4- Naphthoquinone and Methapyrilene. These analytes may have a %D >20% but must be < 50% in the initial calibration verification (ICV). Method 8270E: The continuing calibration verification (CCV) analyzed in batch 680-747438 was outside the method criteria for the following analyte(s): Bis(2-chloroethyl)ether, bis (2- chloroisopropyl) ether and 3 & 4 Methylphenol. A CCV standard at or below the reporting WSP USA, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 5 of 5 limit (RL) was analyzed with the affected samples and found to be acceptable. As indicated in the reference method, sample analysis may proceed; however, any detection for the affected analyte(s) is considered estimated. Method 8270E: The following analytes have been identified, in the reference method and/or via historical data, to be poor and/or erratic performers: p-Phenylene diamine and Methapyrilene. These analytes may have a %D >20% but must be <50%. If >50%, a CCV standard at or below the reporting limit (RL) was analyzed with the affected samples and found to be acceptable. As indicated in the reference method, sample analysis may proceed; however, any detection for the affected analyte(s) is considered estimated. y Method 8270E: 1,4-Naphthoquinone recovered in the LCS above the calibration curve at a level that was unable to be calculated due to this analyte being on a quadratic fit, Note that these analytes are known poor performers when analyzed using this method.(LCS 680- 746985/16-A) and (LCSD 680-746985/17-A 2�SQ pCCgF ENCO Laboratories 9e0 Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Tuesday, November 15, 2022 Golder Associates, Inc. (G0007) Attn: Dusty Reedy 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: GL19131339 Task 106, Project Name/Desc: White Street LF-Phase I,II,III SW ENCO Workorder(s): CF14770 Dear Dusty Reedy, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Monday, October 24, 2022. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Amanda L. Gaines Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 1 9 PROJECT NARRATIVE Date: November 15, 2022 Client: Golder Associates, Inc. (G0007) Project: White Street LF-Phase 1,11,111 SW Lab ID: CF14770 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples No Comments Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Amanda Gaines Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 19 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4303/12-SW3 Lab ID: CF14770-01 Sampled: 10/21/22 12:21 Received: 10/24/22 11:00 Parameter EPA 8260D Preparation EPA 503013_MS Hold Date/Time(s) 11/04/22 Prep Date/Time(s) 11/01/22 21:39 Analysis Date/Time(s) 11/02/22 15:36 Client ID: 4303/12-SW2 Lab ID: CF14770-02 Sampled: 10/21/22 10:19 Received: 10/24/22 11:00 Parameter EPA 8260D Preparation EPA 503013_MS Hold Date/Time(s) 11/04/22 Prep Date/Time(s) 11/01/22 21:39 Analysis Date/Time(s) 11/02/22 16:05 Client ID: 4303/12-SW3 Lab ID: CF14770-03 Sampled: 10/21/22 10:50 Received: 10/24/22 11:00 Parameter EPA 8260D Preparation EPA 503013_MS Hold Date/Time(s) 11/04/22 Prep Date/Time(s) 11/01/22 21:39 Analysis Date/Time(s) 11/02/22 18:01 Client ID: 4303/12-SW4 Lab ID: CF14770-04 Sampled: 10/21/22 11:40 Received: 10/24/22 11:00 Parameter EPA 8260D Preparation EPA 503013_MS Hold Date/Time(s) 11/04/22 Prep Date/Time(s) 11/01/22 21:39 Analysis Date/Time(s) 11/02/22 18:29 Client ID: 4303/12-Trip Blank Lab ID: CF14770-05 Sampled: 10/21/22 09:20 Received: 10/24/22 11:00 Parameter EPA 8260D Preparation EPA 503013_MS Hold Date/Time(s) 11/04/22 Prep Date/Time(s) 11/01/22 21:39 Analysis Date/Time(s) 11/02/22 12:43 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 19 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4303/12-SW2 Lab ID: CF14770-02 Analvte Results Flag MDL PQL Units Method Notes Toluene 0.48 J 0.14 1.0 ug/L EPA 8260D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 19 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW1 Lab Sample ID:CF14770-01 Received: 10/24/22 11:00 Matrix: Surface Water Sampled:10/21/22 12:21 Work Order: CF14770 Project: White Street LF-Phase I,II,III SW Sampled By0onathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2KO1017 EPA 8260D 11/02/22 15:36 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2KO1017 EPA 8260D 11/02/22 15:36 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2KO1017 EPA 8260D 11/02/22 15:36 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 19 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW1 Lab Sample ID:CF14770-01 Received: 10/24/22 11:00 Matrix: Surface Water Sampled:10/21/22 12:21 Work Order: CF14770 Project: White Street LF-Phase I,II,III SW Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 50 1 50.0 100 % 53-136 2KO1017 EPA 6260D 1110212215:36 RKY Dlbromofluoromethane 50 1 50.0 100 % 67-129 2KO1017 EPA 6260D 1110212215:36 RKY Toluene-d8 50 1 50.0 101 % 59-134 2KO1017 EPA 8260D 111021221536 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 19 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW2 Lab Sample ID:CF14770-02 Received: 10/24/22 11:00 Matrix: Surface Water Sampled:10/21/22 10:19 Work Order: CF14770 Project: White Street LF-Phase I,II,III SW Sampled By0onathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 u ug/L 1 1.1 5.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2KO1017 EPA 8260D 11/02/22 16:05 RKY Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 2KO1017 EPA 8260D 11/02/22 16:05 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Bromoform [75-25-2]A 0.22 u ug/L 1 0.22 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Iodomethane [74-88-4]A 1.7 u ug/L 1 1.7 5.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Toluene [108-88-3]A 0.48 J ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Trichloroethene [79-01-6]A 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Trichlorofluoromethane [75-69-4]A 0.24 u ug/L 1 0.24 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Vinyl chloride [75-01-4]A 0.32 u ug/L 1 0.32 1.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2KO1017 EPA 8260D 11/02/22 16:05 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 19 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW2 Lab Sample ID: CF14770-02 Received: 10/24/22 11:00 Matrix: Surface Water Sampled:10/21/22 10:19 Work Order: CF14770 Project: White Street LF-Phase I,II,III SW Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 50 1 50.0 101 % 53-136 2KO1017 EPA 6260D 1110212216:05 RKY Dlbromofluoromethane 50 1 50.0 100 % 67-129 2KO1017 EPA 6260D 1110212216:05 RKY Toluene-d8 50 1 50.0 100 % 59-134 2KO1017 EPA 8260D 1110212216:05 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 19 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW3 Lab Sample ID:CF14770-03 Received: 10/24/22 11:00 Matrix: Surface Water Sampled:10/21/22 10:50 Work Order: CF14770 Project: White Street LF-Phase I,II,III SW Sampled By0onathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2KO1017 EPA 8260D 11/02/22 18:01 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2KO1017 EPA 8260D 11/02/22 18:01 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2KO1017 EPA 8260D 11/02/22 18:01 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 19 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW3 Lab Sample ID: CF14770-03 Received: 10/24/22 11:00 Matrix: Surface Water Sampled:10/21/22 10:50 Work Order: CF14770 Project: White Street LF-Phase I,II,III SW Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 105 % 53-136 2KO1017 EPA 6260D 1110212218:01 RKY Dlbromofluoromethane 48 1 50.0 97 % 67-129 2KO1017 EPA 6260D 1110212218:01 RKY Toluene-d8 51 1 50.0 101 % 59-134 2KO1017 EPA 6260D 1110212218:01 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 of 19 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW4 Lab Sample ID:CF14770-04 Received: 10/24/22 11:00 Matrix: Surface Water Sampled:10/21/22 11:40 Work Order: CF14770 Project: White Street LF-Phase I,II,III SW Sampled By0onathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2KO1017 EPA 8260D 11/02/22 18:29 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2KO1017 EPA 8260D 11/02/22 18:29 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2KO1017 EPA 8260D 11/02/22 18:29 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 Of 19 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-SW4 Lab Sample ID: CF14770-04 Received: 10/24/22 11:00 Matrix: Surface Water Sampled:10/21/22 11:40 Work Order: CF14770 Project: White Street LF-Phase I,II,III SW Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 51 1 50.0 101 % 53-136 2KO1017 EPA 6260D 1110212216:29 RKY Dlbromofluoromethane 50 1 50.0 100 % 67-129 2KO1017 EPA 6260D 1110212216:29 RKY Toluene-d8 50 1 50.0 100 % 59-134 2KO1017 EPA 8260D 1110212216:29 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 of 19 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-Trip Blank Lab Sample ID:CF14770-05 Received: 10/24/22 11:00 Matrix: Water Sampled:10/21/22 09:20 Work Order: CF14770 Project: White Street LF-Phase I,II,III SW Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2KO1017 EPA 8260D 11/02/22 12:43 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2KO1017 EPA 8260D 11/02/22 12:43 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY Xylenes (Total) [1330-20-7]A 0.45 Ll ug/L 1 0.45 3.0 2KO1017 EPA 8260D 11/02/22 12:43 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 19 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4103/12-Trip Blank Lab Sample ID: CF14770-05 Received: 10/24/22 11:00 Matrix: Water Sampled:10/21/22 09:20 Work Order: CF14770 Project: White Street LF-Phase I,II,III SW Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified ana&te [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 51 1 50.0 102 % 53-136 2KO1017 EPA 6260D 11102122 12:43 RKY Dlbromofluoromethane 53 1 50.0 106 % 67-129 2KO1017 EPA 6260D 1110212212:43 RKY Toluene-d8 51 1 50.0 101 % 59-134 2KO1017 EPA 8260D 11102122 12:43 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 19 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2KO1017 - EPA 5030E MS Blank (2K03017-BLKS) Prepared: 11/01/2022 21:39 Analyzed: 11/02/2022 12:15 Analvte Result Flaq POL Units 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 50 u91L 50.0 101 53-136 Dibromofluoromethane 52 u91L 50.0 104 67-129 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 15 Of 19 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2KO1017 - EPA 5030B MS - Continued (� �Eo www.encolabs.com Blank (2K01017-BLKS) Continued Prepared: 11/01/2022 21:39 Analyzed: 11/02/2022 12:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 50 ug/L 50.0 100 59-134 LCS (2K01017-BS1) Prepared: 11/01/2022 21:39 Analyzed: 11/02/2022 10:20 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 95 75-133 Benzene 19 1.0 ug/L 20.0 94 80-134 Chlorobenzene 20 1.0 ug/L 20.0 101 80-120 Toluene 22 1.0 ug/L 20.0 108 71-120 Trichloroethene 20 1.0 ug/L 20.0 98 74-120 Matrix Spike (2K03017-MS1) Prepared: 11/01/2022 21:39 Analyzed: 11/02/2022 10:49 Source: CF15447-16 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 100 75-133 Benzene 19 1.0 ug/L 20.0 0.15 U 94 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 101 74-120 Matrix Spike Dup (2K03017-MSD1) Prepared: 11/01/2022 21:39 Analyzed: 11/02/2022 11:17 Source: CF15447-16 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Result Flaq POL 21 1.0 20 1.0 22 1.0 23 1.0 22 1.0 Spike Source %REC Units Level Result %REC Limits RPD ug/L 20.0 0.21 U 107 75-133 7 ug/L 20.0 0.15 U 100 80-134 6 ug/L 20.0 0.17 U 108 80-120 10 ug/L 20.0 0.14 U 117 71-120 10 ug/L 20.0 0.15 U 108 74-120 7 RPD Limit Notes 20 17 16 17 22 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 19 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 of 19 r i a cc O U WMM 0 0 U) U LL O Z a L) cn a 0 a 0 m a Z O a w U) Z O U J H Z W 2 Z MO cc Z w �i C p� 9 p 2 ro C v. �+ N CL Q7 cc N » s 70 Q1 ¢ mID a CL a) L O � N c U ' U U a U C N O 5 T � k' S o m O � 0 = ? U E c z R 49 O m ✓ � z o Q F Q � d EO a S Q c 2 E c p � = VQ IL 2E m E T E m x �'n`�'� 35'43`4d'IN'�'a`�"J`'P:}'$8'8'stf IAd x x x `x a v I Wfs C109ZB' 4 x!Pu*ddy a09Zs x X x x x � N p vc H h m U.4 � L N �l U G m ry O o O f/1 4Q[E7 o '05 qvj ICE 's v 9.wV—T� D C- •a- O u J V,� _ m oC ¢ ¢ $ �+ .a y1 _y .� a a0 m U~ �_ J ,Ep w (� U a n` �a ¢ m to m m E N m a �L1 F a .�z N Z .-. 0 �� 3 0 L a Y C) CD 'r7 co C ay ro ❑ L!7 cn UJ I � T � m Yd E c E T ( d d C zzz mm E E Page 18 of 19 Sample Preservation Verification ENCO Cary 0 Work Order: CF14770 Project: White Street LF-Phase 1,11,111 SW Client Golder Associates, Inc, (G0007) Project #: GL19131339 Task 106 Logged In: 24-Oct-22 11:20 1Logged By: Samantha L Hyatt Preservation Check Performed By: Date/Time: C F 14770-01 Cont Type Pres (pH) Requirement pH Checked / t Control pH Adjusted DaterFime Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y/ N/ NA Y/(N I )NA CF14770-02 Cant Type Pres (pH) Requirement pH Ch. ecked / Irt Control pH Adjusted Date/Time Adjusted Reagent UsedlComments A 250mLP+HNO3 <2 Y/ N I NA Y N! NA C F 14770-03 Cont Type Pres (pH) Requirement pH Checked 1 In,Control pH Adjusted DaterFime Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 `Y I N/ NA Y I N 1 NA C F 14770-04 Cant Type Pres (pH) Requirement pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3. <2 Y 1 N 1 NA Y I N/ NA Rea ent Name I D 1 2 pH Strip ID: _rZ_.(:1- Lk� � �� Rea ent Name ID 3 4 Reagent Name ID 5 6 Page 19 of 12J C:IELMNTIPrintlwko_PreservationCheck.rpt ti% eurofins Environment Testing I ANALYTICAL REPORT C PREPARED FOR Attn: Amanda Gaines Environmental Conservation Laboratories 102 Woodwinds Industrial Ct, Suite A Cary North Carolina 27511 JOB DESCRIPTION CF14770 JOB NUMBER 680-224106-1 Client: Environmental Conservation Laboratories Sample Summary Job ID: 680-224106-1 Project/Site: CF14770 Lab Sample ID Client Sample ID Matrix Collected Received 680-224106-1 4103/12-SW1 Surface Water 10/21/22 12:21 10/27/22 08:00 680-224106-2 4103/12-SW2 Surface Water 10/21/22 10:19 10/27/22 08:00 680-224106-3 4103/12-SW3 Surface Water 10/21/22 10:50 10/27/22 08:00 680-224106-4 4103/12-SW4 Surface Water 10/21/22 11:40 10/27/22 08:00 680-224106-5 4103/12-Trip Blank Water 10/21/22 09:20 10/27/22 08:00 Page 2 of 28 1) Method Summary Client: Environmental Conservation Laboratories Project/Site: CF1477O Job ID: 680-224106-1 Method Method Description Protocol Laboratory 8260D SIM Volatile Organic Compounds (GC/MS) SW846 EET PEN 6010D Metals (ICP) SW846 EET SAV 6020B Metals (ICP/MS) SW846 EET SAV 3005A Preparation, Total Recoverable or Dissolved Metals SW846 EET SAV 5030C Purge and Trap SW846 EET PEN Protocol References: SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL (850)474-1001 EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 Eurofins Savannah Page 3 of 28 11 /15/2022 (Rev. 1) Definitions/Glossary Client: Environmental Conservation Laboratories Job ID: 680-224106-1 Project/Site: CF14770 Qualifiers GC/MS VOA Qualifier Qualifier Description J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Metals C Qualifier Qualifier Description J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Glossary Abbreviation These commonly used abbreviations may or may not be present in this report. tt Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level' MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit MIL Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRIES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins Savannah Page 4 of 28 11/15/2022 (Rev. 1) Case Narrative Client: Environmental Conservation Laboratories Project/Site: CF14770 Job ID: 680-224106-1 Laboratory: Eurofins Savannah Narrative Job Narrative 680-224106-1 REVISION F Job ID: 680-224106-1 The report being provided is a revision of the original report sent on 11/1/2022. The report (revision 1) is being revised due to Client would like report run with todays date. Report revision history F Receipt The samples were received on 10/27/2022 8:00 AM. Unless otherwise noted below, the samples arrived in good condition, and, where required, properly preserved and on ice. The temperature of the cooler at receipt time was 5.4°C GC/MS VOA No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Metals No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Eurofins Savannah Page 5 of 28 11 /15/2022 (Rev. 1) Detection Summary Client: Environmental Conservation Laboratories Project/Site: CF14770 Client Sample ID: 4103/12-SW1 Analyte Result Qualifier Barium 35 Vanadium 1.3 J Copper 3.2 J Chromium 1.5 J L Client Sample ID: 4103/12-SW2 Analyte Result Qualifier 1,4-Dioxane 0.69 J Barium 40 Vanadium 1.1 J F Job ID: 680-224106-1 Lab Sample ID: 680-224106-1 RL MDL Unit Dil Fac D Method Prep Type 10 4.4 ug/L 1 601OD Total Recoverable 10 1.0 ug/L 1 6010D Total Recoverable 20 3.2 ug/L 1 6010D Total Recoverable 10 1.1 ug/L 1 6010D Total Recoverable Lab Sample ID: 680-224106-2 RL MDL Unit Dil Fac D Method Prep Type 1.0 0.30 ug/L 1 8260D SIM Total/NA 10 4.4 ug/L 1 6010D Total Recoverable 10 1.0 ug/L 1 6010D Total Recoverable Client Sample ID: 4103/12-SW3 Lab Sample ID: 680-224106-3 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Zinc 16 J 20 8.7 ug/L 1 6010D Total Recoverable Barium 37 10 4.4 ug/L 1 601OD Total Recoverable Vanadium 3.0 J 10 1.0 ug/L 1 6010D Total Recoverable Copper 3.6 J 20 3.2 ug/L 1 6010D Total Recoverable Chromium 1.5 J 10 1.1 ug/L 1 6010D Total L Recoverable Client Sample ID: 4103/12-SW4 Lab Sample ID: 680-224106-4 Analyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Barium 35 10 4.4 ug/L 1 601OD Total Recoverable Vanadium 2.4 J 10 1.0 ug/L 1 6010D Total L Recoverable Client Sample ID: 4103/12-Trip Blank Lab Sample ID: 680-224106-5 CNo Detections This Detection Summary does not include radiochemical test results. Page 6 of 28 Eurofins Savannah 11/15/2022 (Rev. 1) Client Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14770 Job ID: 680-224106-1 Client Sample ID: 4103/12-SW1 Lab Sample ID: 680-224106-1 Date Collected: 10/21/22 12:21 Matrix: Surface Water Date Received: 10/27/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit 1,4-Dioxane <0.30 1.0 0.30 ug/L Surrogate %Recovery Qualifier Limits Dibromofluoromethane 79 50 - 150 Toluene-d8 (Surr) 103 50 - 150 4-Bromofluorobenzene 103 50 - 150 Method: SW846 6010D - Metals (ICP) - Total Recoverable Analyte Result Qualifier RL Zinc <8.7 20 Cadmium <0.44 5.0 Beryllium <0.30 4.0 Barium 35 10 Nickel <3.3 40 Vanadium 1.3 J 10 Silver <1.5 10 Arsenic <6.4 20 Copper 3.2 J 20 Lead <6.6 10 Selenium <10 20 Chromium 1.5 J 10 Cobalt <1.4 10 Method: SW846 6020B - Metals (ICP/MS) - Total Recoverable Analyte Result Qualifier RL Antimony <0.52 5.0 Thallium <0.26 1.0 MDL Unit 8.7 ug/L 0.44 ug/L 0.30 ug/L 4.4 ug/L 3.3 ug/L 1.0 ug/L 1.5 ug/L 6.4 ug/L 3.2 ug/L 6.6 ug/L 10 ug/L 1.1 ug/L 1.4 ug/L MDL Unit 0.52 ug/L 0.26 ug/L D Prepared Analyzed 10/30/22 15:54 Prepared Analyzed 10130122 15:54 10130122 15:54 10130122 15:54 D Prepared Analyzed 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 10/28/22 08:08 10/28/22 20:59 D Prepared Analyzed 10/28/22 08:08 10/28/22 22:15 10/28/22 08:08 10/28/22 22:15 Dil Fac 1 Dil Fac 1 1 1 Dil Fac 1 1 1 1 1 1 1 1 1 1 1 1 1 Dil Fac 1 1 Eurofins Savannah Page 7 of 28 11 /15/2022 (Rev. 1) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-224106-1 Project/Site: CF14770 Client Sample ID: 4103/12-SW2 Lab Sample ID: 680-224106-2 Date Collected: 10/21/22 10:19 Matrix: Surface Water Date Received: 10/27/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane 0.69 J 1.0 0.30 ug/L 10/30/2216:19 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 81 50 - 150 10130122 16:19 1 Toluene-d8 (Surr) 101 50 - 150 10130122 16:19 1 4-Bromofluorobenzene 103 50 - 150 10130122 16:19 1 Method: SW846 6010D - Metals (ICP) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Zinc <8.7 20 8.7 ug/L 10/28/22 08:08 10/28/22 21:05 1 Cadmium <0.44 5.0 0.44 ug/L 10/28/22 08:08 10/28/22 21:05 1 Beryllium <0.30 4.0 0.30 ug/L 10/28/22 08:08 10/28/22 21:05 1 Barium 40 10 4.4 ug/L 10/28/22 08:08 10/28/22 21:05 1 Nickel <3.3 40 3.3 ug/L 10/28/22 08:08 10/28/22 21:05 1 Vanadium 1.1 J 10 1.0 ug/L 10/28/22 08:08 10/28/22 21:05 1 Silver <1.5 10 1.5 ug/L 10/28/22 08:08 10/28/22 21:05 1 Arsenic <6.4 20 6.4 ug/L 10/28/22 08:08 10/28/22 21:05 1 Copper <3.2 20 3.2 ug/L 10/28/22 08:08 10/28/22 21:05 1 Lead <6.6 10 6.6 ug/L 10/28/22 08:08 10/28/22 21:05 1 Selenium <10 20 10 ug/L 10/28/22 08:08 10/28/22 21:05 1 Chromium <1.1 10 1.1 ug/L 10/28/22 08:08 10/28/22 21:05 1 Cobalt <1.4 10 1.4 ug/L 10/28/22 08:08 10/28/22 21:05 1 Method: SW846 6020B - Metals (ICP/MS) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony <0.52 5.0 0.52 ug/L 10/28/22 08:08 10/28/22 22:21 1 Thallium <0.26 1.0 0.26 ug/L 10/28/22 08:08 10/28/22 22:21 1 Eurofins Savannah Page 8 of 28 11 /15/2022 (Rev. 1) Client Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14770 Job ID: 680-224106-1 Client Sample ID: 4103/12-SW3 Lab Sample ID: 680-224106-3 Date Collected: 10/21/22 10:50 Matrix: Surface Water Date Received: 10/27/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit 1,4-Dioxane <0.30 1.0 0.30 ug/L Surrogate %Recovery Qualifier Limits Dibromofluoromethane 80 50 - 150 Toluene-d8 (Surr) 102 50 - 150 4-Bromofluorobenzene 102 50 - 150 Method: SW846 6010D - Metals (ICP) - Total Recoverable Analyte Result Qualifier RL Zinc 16 J 20 Cadmium <0.44 5.0 Beryllium <0.30 4.0 Barium 37 10 Nickel <3.3 40 Vanadium 3.0 J 10 Silver <1.5 10 Arsenic <6.4 20 Copper 3.6 J 20 Lead <6.6 10 Selenium <10 20 Chromium 1.5 J 10 Cobalt <1.4 10 Method: SW846 6020B - Metals (ICP/MS) - Total Recoverable Analyte Result Qualifier RL Antimony <0.52 5.0 Thallium <0.26 1.0 MDL Unit 8.7 ug/L 0.44 ug/L 0.30 ug/L 4.4 ug/L 3.3 ug/L 1.0 ug/L 1.5 ug/L 6.4 ug/L 3.2 ug/L 6.6 ug/L 10 ug/L 1.1 ug/L 1.4 ug/L MDL Unit 0.52 ug/L 0.26 ug/L D Prepared Analyzed 10/30/22 16:44 Prepared Analyzed 10130122 16:44 10130122 16:44 10130122 16:44 D Prepared Analyzed 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 10/28/22 08:08 10/28/22 20:56 D Prepared Analyzed 10/28/22 08:08 10/28/22 22:07 10/28/22 08:08 10/28/22 22:07 Dil Fac 1 Dil Fac 1 1 1 Dil Fac 1 1 1 1 1 1 1 1 1 1 1 1 1 Dil Fac 1 1 Eurofins Savannah Page 9 of 28 11 /15/2022 (Rev. 1) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-224106-1 Project/Site: CF14770 Client Sample ID: 4103/12-SW4 Lab Sample ID: 680-224106-4 Date Collected: 10/21/22 11:40 Matrix: Surface Water Date Received: 10/27/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane <0.30 1.0 0.30 ug/L 10/30/2217:09 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 82 50 - 150 10130122 17:09 1 Toluene-d8 (Surr) 102 50 - 150 10130122 17:09 1 4-Bromofluorobenzene 102 50 - 150 10130122 17:09 1 Method: SW846 6010D - Metals (ICP) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Zinc <8.7 20 8.7 ug/L 10/28/22 08:08 10/28/22 21:02 1 Cadmium <0.44 5.0 0.44 ug/L 10/28/22 08:08 10/28/22 21:02 1 Beryllium <0.30 4.0 0.30 ug/L 10/28/22 08:08 10/28/22 21:02 1 Barium 35 10 4.4 ug/L 10/28/22 08:08 10/28/22 21:02 1 Nickel <3.3 40 3.3 ug/L 10/28/22 08:08 10/28/22 21:02 1 Vanadium 2.4 J 10 1.0 ug/L 10/28/22 08:08 10/28/22 21:02 1 Silver <1.5 10 1.5 ug/L 10/28/22 08:08 10/28/22 21:02 1 Arsenic <6.4 20 6.4 ug/L 10/28/22 08:08 10/28/22 21:02 1 Copper <3.2 20 3.2 ug/L 10/28/22 08:08 10/28/22 21:02 1 Lead <6.6 10 6.6 ug/L 10/28/22 08:08 10/28/22 21:02 1 Selenium <10 20 10 ug/L 10/28/22 08:08 10/28/22 21:02 1 Chromium <1.1 10 1.1 ug/L 10/28/22 08:08 10/28/22 21:02 1 Cobalt <1.4 10 1.4 ug/L 10/28/22 08:08 10/28/22 21:02 1 Method: SW846 6020B - Metals (ICP/MS) - Total Recoverable Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony <0.52 5.0 0.52 ug/L 10/28/22 08:08 10/28/22 22:18 1 Thallium <0.26 1.0 0.26 ug/L 10/28/22 08:08 10/28/22 22:18 1 Eurofins Savannah Page 10 of 28 11/15/2022 (Rev. 1) Client Sample Results Client: Environmental Conservation Laboratories Job ID: 680-224106-1 Project/Site: CF14770 Client Sample ID: 4103/12-Trip Blank Lab Sample ID: 680-224106-5 Date Collected: 10/21/22 09:20 Matrix: Water Date Received: 10/27/22 08:00 Method: SW846 8260D SIM - Volatile Organic Compounds (GC/MS) Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac 1,4-Dioxane <0.30 1.0 0.30 ug/L 10/30/2212:33 1 Surrogate %Recovery Qualifier Limits Prepared Analyzed Dil Fac Dibromofluoromethane 81 50 - 150 10130122 12:33 1 Toluene-d8 (Surr) 103 50 - 150 10130122 12:33 1 4-Bromofluorobenzene 104 50 - 150 10130122 12:33 1 F Eurofins Savannah Page 11 of 28 11/15/2022 (Rev. 1) QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14770 Job ID: 680-224106-1 Method: 8260D SIM - Volatile Organic Compounds (GC/MS) Lab Sample ID: MB 400-598413/6 Client Sample ID: Method Blank Matrix: Water Prep Type: Total/NA Analysis Batch: 598413 MB MB Analyte Result Qualifier 1,4-Dioxane <0.30 MB MB Surrogate %Recovery Qualifier Dibromofluoromethane 77 Toluene-d8 (Surr) 104 4-Bromofluorobenzene 104 Lab Sample ID: LCS 400-598413/1004 Matrix: Water Analysis Batch: 598413 Analyte 1,4-Dioxane LCS LCS Surrogate %Recovery Qualifier Dibromofluoromethane 76 Toluene-d8 (Surr) 108 4-Bromofluorobenzene 105 Method: 6010D - Metals (ICP) Lab Sample ID: MB 680-747482/1-A Matrix: Water Analysis Batch: 747848 RL MDL Unit 1.0 0.30 ug/L D Prepared Analyzed Dil Fac 10/30/2212:08 1 ■:1 Limits Prepared Analyzed Dil Fac 50 - 150 10130122 12: 08 1 50 - 150 10130122 12: 08 1 50 - 150 10130122 12: 08 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA Spike LCS LCS Added Result Qualifier Unit 10.0 9.64 ug/L Limits 50 - 150 50 - 150 50 - 150 %Rec D %Rec Limits 96 50-150 Client Sample ID: Method Blank Prep Type: Total Recoverable Prep Batch: 747482 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Zinc <8.7 20 8.7 ug/L 10/28/22 08:08 10/28/22 20:38 1 Cadmium <0.44 5.0 0.44 ug/L 10/28/22 08:08 10/28/22 20:38 1 Beryllium <0.30 4.0 0.30 ug/L 10/28/22 08:08 10/28/22 20:38 1 Barium <4.4 10 4.4 ug/L 10/28/22 08:08 10/28/22 20:38 1 Nickel <3.3 40 3.3 ug/L 10/28/22 08:08 10/28/22 20:38 1 Vanadium <1.0 10 1.0 ug/L 10/28/22 08:08 10/28/22 20:38 1 Silver <1.5 10 1.5 ug/L 10/28/22 08:08 10/28/22 20:38 1 Arsenic <6.4 20 6.4 ug/L 10/28/22 08:08 10/28/22 20:38 1 Copper <3.2 20 3.2 ug/L 10/28/22 08:08 10/28/22 20:38 1 Lead <6.6 10 6.6 ug/L 10/28/22 08:08 10/28/22 20:38 1 Selenium <10 20 10 ug/L 10/28/22 08:08 10/28/22 20:38 1 Chromium <1.1 10 1.1 ug/L 10/28/22 08:08 10/28/22 20:38 1 Cobalt <1.4 10 1.4 ug/L 10/28/22 08:08 10/28/22 20:38 1 Lab Sample ID: LCS 680-747482/2-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total Recoverable Analysis Batch: 747848 Prep Batch: 747482 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits Zinc 100 96.1 ug/L 96 80 -120 Cadmium 50.0 49.6 ug/L 99 80 -120 Beryllium 50.0 50.2 ug/L 100 80 -120 Page 12 of 28 Eurofins Savannah 11/15/2022 (Rev. 1) QC Sample Results Client: Environmental Conservation Laboratories Job ID: 680-224106-1 Project/Site: CF14770 Method: 6010D - Metals (ICP) (Continued) Lab Sample ID: LCS 680-747482/2-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total Recoverable Analysis Batch: 747848 Prep Batch: 747482 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits Barium 100 99.7 ug- / —L 100 80-120 Nickel 99.0 101 ug/L 102 80 -120 Vanadium 99.8 97.5 ug/L 98 80 -120 Silver 50.0 48.4 ug/L 97 80 -120 Arsenic 100 97.2 ug/L 97 80 -120 Copper 100 107 ug/L 107 80-120 Lead 505 492 ug/L 97 80-120 Selenium 100 95.0 ug/L 95 80 -120 Chromium 100 100 ug/L 100 80 -120 Cobalt 50.0 48.7 ug/L 97 80 -120 Method: 6020B - Metals (ICP/MS) Lab Sample ID: MB 680-747483/1-A Client Sample ID: Method Blank Matrix: Water Prep Type: Total Recoverable Analysis Batch: 747740 Prep Batch: 747483 MB MB Analyte Result Qualifier RL MDL Unit D Prepared Analyzed Dil Fac Antimony <0.52 5.0 0.52 ug/L 10/28/22 08:08 10/28/22 21:53 1 Thallium <0.26 1.0 0.26 ug/L 10/28/22 08:08 10/28/22 21:53 1 Lab Sample ID: LCS 680-747483/2-A Client Sample ID: Lab Control Sample Matrix: Water Prep Type: Total Recoverable Analysis Batch: 747740 Prep Batch: 747483 Spike LCS LCS %Rec Analyte Added Result Qualifier Unit D %Rec Limits Antimony 50.0 50.7 ug/L 101 80 -120 Thallium 50.0 51.0 ug/L 102 80-120 Eurofins Savannah Page 13 of 28 11/15/2022 (Rev. 1) QC Association Summary C Client: Environmental Conservation Laboratories Job ID: 680-224106-1 Project/Site: CF14770 GC/MS VOA Analysis Batch: 598413 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224106-1 4103/12-SW1 Total/NA Surface Water 8260D SIM 680-224106-2 4103/12-SW2 Total/NA Surface Water 8260D SIM 680-224106-3 4103/12-SW3 Total/NA Surface Water 8260D SIM 680-224106-4 4103/12-SW4 Total/NA Surface Water 8260D SIM 680-224106-5 4103/12-Trip Blank Total/NA Water 8260D SIM MB 400-598413/6 Method Blank Total/NA Water 8260D SIM LCS 400-598413/1004 Lab Control Sample Total/NA Water 8260D SIM Metals Prep Batch: 747482 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224106-1 4103/12-SW1 Total Recoverable Surface Water 3005A 680-224106-2 4103/12-SW2 Total Recoverable Surface Water 3005A 680-224106-3 4103/12-SW3 Total Recoverable Surface Water 3005A 680-224106-4 4103/12-SW4 Total Recoverable Surface Water 3005A MB 680-747482/1-A Method Blank Total Recoverable Water 3005A LCS 680-747482/2-A Lab Control Sample Total Recoverable Water 3005A Prep Batch: 747483 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224106-1 4103/12-SW1 Total Recoverable Surface Water 3005A 680-224106-2 4103/12-SW2 Total Recoverable Surface Water 3005A 680-224106-3 4103/12-SW3 Total Recoverable Surface Water 3005A 680-224106-4 4103/12-SW4 Total Recoverable Surface Water 3005A MB 680-747483/1-A Method Blank Total Recoverable Water 3005A LCS 680-747483/2-A Lab Control Sample Total Recoverable Water 3005A Analysis Batch: 747740 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch 680-224106-1 4103/12-SW1 Total Recoverable Surface Water 6020B 747483 680-224106-2 4103/12-SW2 Total Recoverable Surface Water 6020B 747483 680-224106-3 4103/12-SW3 Total Recoverable Surface Water 6020B 747483 680-224106-4 4103/12-SW4 Total Recoverable Surface Water 6020B 747483 MB 680-747483/1-A Method Blank Total Recoverable Water 6020B 747483 LCS 680-747483/2-A Lab Control Sample Total Recoverable Water 6020B 747483 Analysis Batch: 747848 Lab Sample ID Client Sample ID 680-224106-1 4103/12-SW 1 680-224106-2 4103/12-SW2 680-224106-3 4103/12-SW3 680-224106-4 4103/12-SW4 MB 680-747482/1-A Method Blank LCS 680-747482/2-A Lab Control Sample Prep Type Matrix Method Prep Batch Total Recoverable Surface Water 6010D 747482 Total Recoverable Surface Water 6010D 747482 Total Recoverable Surface Water 6010D 747482 Total Recoverable Surface Water 6010D 747482 Total Recoverable Water 6010D 747482 Total Recoverable Water 6010D 747482 Page 14 of 28 Eurofins Savannah 11/15/2022 (Rev. 1) Lab Chronicle Client: Environmental Conservation Laboratories Job ID: 680-224106-1 Project/Site: CF14770 Client Sample ID: 4103/12-SW1 Lab Sample ID: 680-224106-1 Date Collected: 10/21/22 12:21 Matrix: Surface Water Date Received: 10/27/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 1 5 mL 5 mL 598413 10/30/22 15:54 AGW EET PEN Instrument ID: Curie Total Recoverable Prep 3005A 50 mL 50 mL 747482 10/28/22 08:08 RR EET SAV Total Recoverable Analysis 6010D 1 747848 10/28/22 20:59 BJB EET SAV Instrument ID: ICPH Total Recoverable Prep 3005A 50 mL 250 mL 747483 10/28/22 08:08 RR EET SAV • Total Recoverable Analysis 6020B 1 747740 10/28/22 22:15 BWR EET SAV Instrument ID: ICPMSD Client Sample ID: 4103/12-SW2 Lab Sample ID: 680-224106-2 Date Collected: 10/21/22 10:19 Matrix: Surface Water Date Received: 10/27/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 1 5 mL 5 mL 598413 10/30/22 16:19 AGW EET PEN Instrument ID: Curie Total Recoverable Prep 3005A 50 mL 50 mL 747482 10/28/22 08:08 RR EET SAV Total Recoverable Analysis 6010D 1 747848 10/28/22 21:05 BJB EET SAV Instrument ID: ICPH Total Recoverable Prep 3005A 50 mL 250 mL 747483 10/28/22 08:08 RR EET SAV Total Recoverable Analysis 6020B 1 747740 10/28/22 22:21 BWR EET SAV Instrument ID: ICPMSD Client Sample ID: 4103/12-SW3 Lab Sample ID: 680-224106-3 Date Collected: 10/21/22 10:50 Matrix: Surface Water Date Received: 10/27/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 1 5 mL 5 mL 598413 10/30/22 16:44 AGW EET PEN Instrument ID: Curie Total Recoverable Prep 3005A 50 mL 50 mL 747482 10/28/22 08:08 RR EET SAV Total Recoverable Analysis 6010D 1 747848 10/28/22 20:56 BJB EET SAV Instrument ID: ICPH Total Recoverable Prep 3005A 50 mL 250 mL 747483 10/28/22 08:08 RR EET SAV Total Recoverable Analysis 6020B 1 747740 10/28/22 22:07 BWR EET SAV Instrument ID: ICPMSD Client Sample ID: 4103/12-SW4 Lab Sample ID: 680-224106-4 Date Collected: 10/21/22 11:40 Matrix: Surface Water Date Received: 10/27/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 1 5 mL 5 mL 598413 10/30/22 17:09 AGW EET PEN Instrument ID: Curie Page 15 of 28 Eurofins Savannah 11/15/2022 (Rev. 1) Lab Chronicle Client: Environmental Conservation Laboratories Project/Site: CF14770 F Job ID: 680-224106-1 Client Sample ID: 4103/12-SW4 Lab Sample ID: 680-224106-4 Date Collected: 10/21/22 11:40 Matrix: Surface Water Date Received: 10/27/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total Recoverable Prep 3005A 50 mL 50 mL 747482 10/28/22 08:08 RR EET SAV Total Recoverable Analysis 6010D 1 747848 10/28/22 21:02 BJB EET SAV Instrument ID: ICPH Total Recoverable Prep 3005A 50 mL 250 mL 747483 10/28/22 08:08 RR EET SAV Total Recoverable Analysis 6020B 1 747740 10/28/22 22:18 BWR EET SAV Instrument ID: ICPMSD Client Sample ID: 4103/12-Trip Blank Lab Sample ID: 680-224106-5 Date Collected: 10/21/22 09:20 Matrix: Water Date Received: 10/27/22 08:00 Batch Batch Dil Initial Final Batch Prepared Prep Type Type Method Run Factor Amount Amount Number or Analyzed Analyst Lab Total/NA Analysis 8260D SIM 1 5 mL 5 mL 598413 10/30/22 12:33 AGW EET PEN Instrument ID: Curie Laboratory References: EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL (850)474-1001 EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 Page 16 of 28 Eurofins Savannah 11/15/2022 (Rev. 1) SUBCONTRACT ORDER►'� \ �-'� 't ENCO Cary CF14770 SENDING LABORATORY: RECEIVING LABORATORY: ENCO Cary 102-A Woodwinds Industrial Court Cary, NC 27511 Phone 919 467 3090 Fax 919 467 3515 Project Manager Amanda L Games Test America (GA) 5102 LaRoche Avenue Savannah, GA 31404 Phone (912)354-7858 Fax -0 Project State of Origin- North Carolina Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103/12-SWI Surface Water 21-Oct-22 12:21 • Ana I vs is tinRniYafi nahesa 7'nmmantc 8260D SIM ID 31-Oct-22 15 00 04-Nov-22 12 21 Y50 ORL Antimony Total EPA 6020B 31-Oct-22 1500 19-Apr-23 1221 AP I Metals NC 31-Oct-22 1500 26-Oct-22 1221 , Arsenic Total EPA 601 OD 31-Oct-22 15 00 19-Apr-23 1221 ' Barium Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1221 Beryllium Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1221 Cadmium Total EPA 601OD 31-Oct-22 1500 19-Apr-23 1221 Chromium Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1221 Cobalt Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1221 Copper Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1221 Lead Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1221 Nickel Total EPA 60101) 31-Oet-22 15. 00 19--Apr=23 12 21 Selenium Total EPA 601OD Sliver Total I=,PA 601 OD 31-Oct-22 1500 3 I -not-?,) 15 0(�I 19-Apr-23 12 21 9-Apr-23_12 21 Thallmm-Total EPA 6020B 31-Oct-22 1500 19-Apr-23 12 21 Vanadium Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 12 21 Zme-Total EPA 601 OD 3I-Oc-t-22 15 00 19-Apr-23 12 21 Containers Supplied 250mLP+HNO3 (A) 40mLV+HC1(E) 40mLV+1ICI (F) 40mLV+I-ICI (G) 106 Chain of Custody Recei Receiv WMAM e Page 17 of 28 Page I of 4 11 /15/2022 (Rev. 1) SUBCONTRACT ORDER ENCO Cary CF14770 Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103/12-SW2 Surface Water 21-Oct-22 10:19 Anal sIs IDii Rolm"." ittth ttll� C 8260D SIM ID 31-Oct-22 15 00 04-Nov-22 10 19 ORL Ant imonyTotal EPA6020B 31-Oct-22 1500 19-Apr-23 10 19 AP I Metals NC 31-Oct-22 1500 26-Oct-22 10 19 Arsenic Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 10 19 Barium Total CPA 601 OD 31-Oct-22 15 00 19-Apr-23 1019 Beryllium Total EPA 601OD 31-Oct-22 1500 19-Apr-23 10 19 Cadnmim Total EPA 601 OD 31-Oc1-22 1500 19-Apr-23 10 19 Chromium Total EPA 601 OD 31-Oct-22 15 00 19-Apr-23 10 19 Cobalt Total EPA 601OD 31-Oct-22 1500 19-Apr-23 10 19 Copper Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 10 19 Lead Total EPA 601OD 31-Oct-22 1500 19-Apt-23 10 19 Nickel Total EPA 601OD 31-Oct-22 1500 19-Apr-23 10 19 Selenium Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 10 19 Silver Total EPA 601OD 31-Oct-22 1500 19-Apr-23 10 19 Thallium Total EPA 6020B 31-Oct-22 1500 19-Apr-23 10 19 Vanadium Total EPA 601OD 31-Oct-22 1500 19-Apr-23 10 19 Zme Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 10 19 Containers Supplied 250ml P+HNO3 (A) 40mLV+HCI (E) 40in1V+HCI (F) 40mLV+TICI (0) Released B) Date Received By Date Released By Date Received B) Date Page 2 of 4 Page 18 of 28 11 /15/2022 (Rev. 1) SUBCONTRACT ORDER ENCO Cary CF14770 Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103/12-SW3 Surface Water 21-Oct-22 10:50 Anal• sip 061116tntnl. . 8260D SIM ID 31-Oct-22 15 00 04-Nov-22 10 50 ORL Antimony Total EPA 6020E 31-Oct-22 1500 19-Apr-23 1050 AP I Metals NC 31-Oct-22 1500 26-Oct-22 1050 Arsenic Total EI'A 601 OD 31-Oct-22 1500 19-Apr-23 1050 Barium Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1050 Berylluun Total EPA 601OD 31-Oct-22 1500 19-Apr-23 1050 Cadmium Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1050 Chromium Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1050 Cobalt Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1050 Copper Total EPA 601 OD 31-Oct-22 1500 19-Apr-23 1050 Lead 'Iotal EPA 601 OD 31-Oct-22 1500 19-Apr-23 1050 Nickel Total EPA 601OD 31-Oct-22 1500 19-Apr-23 1050 Selenium Total EPA 601OD 31-Oc1-22 1500 19-Apr-23 1050 Silver Total EPA 6010D 31-Oct-22 1500 19-Apr-23 1050 Thallium Total EPA 6020B 31-Oct-22 1500 19-Apr-23 1050 Vanadium Total EPA 601OD 31-Oct-22 15 00 19-Apr-23 10 50 Zinc Total EPA 601 OD 31-Oct-22 15 00 19-Apr-23 10 50 Conlaiuers Supplied 250mLP+I4NO3 (A) 40rn V+I4CI (E) 40nEV+140 (F) 40nE A-1 1(0) Released By Date Received By Date Released By Date Received By Date 0 Page 3 of 4 Page 19 of 28 11 /15/2022 (Rev. 1) SUBCONTRACT ORDER ENCO Cary CF 14770 Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103/12-SW4 Surface Water 21-Oct-22 11:40 Analysis >l?q& 'ire . _ 'Am aim is _ C 8260D SIM ID 31-Oct-22 1500 04-Nov-22 11 40 ORL Antimony Total EPA 6020B 31-Oct-22 1500 19-Apr-23 11 40 API Metals NC 31-Oct-22 1500 26-Oct-22 11 40 Arsenic Total EPA 6010D 31-00-22 1500 19-Apr-23 11 40 Barium Total El'A 6010D 31-Oct-22 1500 19-Apr-23 11 40 Beryllium Ibtal EPA 6010D 31-Oct-22 1500 19-Apr-23 11 40 Cadm11.1m Total EPA 6010D 31-Oct-22 1500 19-Apr-23 11 40 Chromium Total EPA 6010D 31-Oct-22 15 00 19-Apr-23 11 40 Cobalt Total EPA 6010D 31-Oct-22 1500 19-Apr-23 11 40 Copper Total EPA 6010D 31-Oct-22 1500 19-Apr-23 1140 Lead Total EPA 6010D 31-Oct-22 1500 19-Apr-23 11 40 Nickel Total EPA 601OD 31-Oct-22 1500 19-Apr-23 11 40 Selenium Total EPA 6010D 3l-Oct-22 1500 19-Apr-23 11 40 Silver Total EPA 6010D 31-Oct-22 1500 19-Apr-23 11 40 Thalluim Total EPA6020B 31-Oct-22 1500 19-Apr-23 11 40 Vanadium Total EPA 601 OD 31-Oct-22 15 00 19-Apr-23 11 40 Zinc Total EPA 6010D 31-Oct-22 1500 19-Apr-23 11 40 Container s Supplied 250rriLP+T-IN03 (A) 40mLV+NCI (E) 40mLV+FICI (T) 40mLV+FIC] (G) .Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 4103/12-Trip Blank Water 21-Oct-22 09.20 Dui Aalslysts :Com;R►'t 8260D SIM ID 31-Oct-22 15 00 04-Nov-22 09 20 ORL C or-ranners . t p !te`d 40mLV+FICI (C) 40mLV+}ICI (D) Released By Date Received By Date Released By Date Received By Date Page 4 of 4 Page 20 of 28 11 /15/2022 (Rev. 1) SUBCONTRACT ORDER ❑ ENCO Cary CF14770 Custom Analysis Settings Analysis: 8260D SIM ID Matrix: Water Units- ug/L Flags C Calculation Options Synchronize with Base Method ❑ B ❑ Dry -weight correct MDL/MRL X❑ MDL ❑ Flag Levels ❑ D ❑ Dry -weight correct results ❑X MRL ❑X SUR Limit ❑ E 0 Report results to MDL ❑X # ❑X QC Limits ❑ i ❑ Report results to MRL ❑X Rpt ❑X Analyte Info ❑ U ❑ Analyte Info 1.4-Dioxane X X 08 2 iJ Rya 10 200 50 10 200 1,4-13roxane-fl X X Released By Date Received By Date Released By Date Received By Date Page 6 of 6 Page 21 of 28 11 /15/2022 (Rev. 1) IS�ampKe Preservation Verification ENCO Cary Work Order OF14770 Project White Street LF'Pheae| U.U\ 8VV Clipnt Golder Associates, Inc (GO007) Project # GL1S131339 Taahi08 Loggedin 24 Oct 22 11 20 A Logged By Samantha LHyatt Preservation Check Performed 8y CbteOlme L--- CF1477$~01 CF14770-02 Cont a CF14770-04 Tme —_ ---_ --_ _—_ ---_----_- ` Reagent NAme ID 1 J pH6kup|D \ Reagent Name ID 3 4 Rewient Name ID 5 G � (,\EUNN�PnnKwko Preservation Oheck qpt Paqp I | L Q l6 R C LL LC C O > M Q Q m � N U U r O t O C a j > c W co a z o z ao 0�0°00 m y 00rg� o¢� E `m W O Z N i0 N N (n N U Q N L ... « 2 Q N = Z Q Z Z Q 5 p U cc C C ri 2z0maU (0) }N N ` N cU L Ei o U o U o U 0 C �a � TO(O O � e OO Ou cl U) ( OZ0 ' UU N `W W o 2 C OLLZQ ✓`) Uoc) dm0 m o -> O 0_ QmUO W LLU' I-�YJ C� F N v _m O c ` rr( siau!e)uoo )o jagwnN lelol M M M M N Euo t � v N c .- m - E E .. v s c _ m o. m m m6 o 0 `�° o w E .a N o 0 0� rn o m m m o ,`z . ca r v c o v co m J E of ✓n x W U (nZ 0 u m a m Q v 3 z d Ito aO E o N v N m (°n O E y a S cc o~ o C U o o- a � w Q m V v c v E U U o r= o 0 - 0 C ~ . - W U Q. 3 U U d1. W i� o N 'O > m C o o > - m �J rn o. u u O o Z auexola-b'L Wow) 30EOS/WIS 009Z8 X X X X X w E N W � m, U L E v (ON Jo sal.) OsW/sw WJOPOd N o m o75 y (ON jo seA) aldwes poiallld ple!4 a m H d'E O J = L W U) s x � ¢_ U NN ao - > >N > >N > >N > >N > 'a' m c O L v E ? U E o U E U E a y E (p N L v m JO 0 0 ao s v v u N � E E E O. a)N N N V N N N a a N :-, U) m W mo W m� W .- W m O W T 70 d A Q N Q J y Q '� = v v m - N > Q K N W N O (D N N N N N L` N 1 ik o 0 0 0 0 u) y to E E `o o W is N °6 O 3 o E m _E E wN rn a � •- o a O a O v co a` O U)E o d 10 p O E o m v U C O J W a c a Nv J `O o U o Z r+ m X N C L O cn O v> c o L) o ; Cl) f� c0 O (O (O N o C 'm - U j w m v V o O O o — mw O C > M O N N N N ++ Ol a) m t O(_o O oc)Q O m Om .. ZE (o (o (o - EI m Q c NC a a)o' oo a _ ro v T d .. a m m N ..0. C c W m E n W (n � U F` v o v E n C c C in U o Z o I C U Q N CN N n y OU '> d Q i Ia E° D '� D d ° d- .o v o 0 0 0 0 o c d E w U Cl) U W <m Ud nW aro w aU n (n zc�c V v v c zv a W 0 Page 24 of 28 11/15/2022 (Rev. 1) Login Sample Receipt Checklist Client: Environmental Conservation Laboratories Job Number: 680-224106-1 Login Number: 224106 List Number: 1 Creator: Johnson, Corey M Question List Source: Eurofins Savannah Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. True The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True m Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is N/A <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Eurofins Savannah Page 25 of 28 11/15/2022 (Rev. 1) Login Sample Receipt Checklist Client: Environmental Conservation Laboratories Login Number: 224106 List Number: 2 Creator: Whitley, Adrian Question Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. N/A Sample custody seals, if present, are intact. N/A The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. N/A There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is N/A <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A 1.5, 0.8°C IR8 Job Number: 680-224106-1 List Source: Eurofins Pensacola List Creation: 10/28/22 12:04 PM Eurofins Savannah Page 26 of 28 11/15/2022 (Rev. 1) Accreditation/Certification Summary C Client: Environmental Conservation Laboratories Job ID: 680-224106-1 Project/Site: CF14770 Laboratory: Eurofins Savannah The accreditations/certifications listed below are applicable to this report. Authority Program Identification Number Expiration Date North Carolina (WW/SW) State 269 12-31-22 Laboratory: Eurofins Pensacola The accreditations/certifications listed below are applicable to this report. Authority Program Identification Number Expiration Date North Carolina (WW/SW) State 314 12-31-22 Eurofins Savannah Page 27 of 28 11/15/2022 (Rev. 1) The test results in this report meet NELAP requirements for parameters for which accreditation is required or available. Any exceptions to the NELAP requirements are noted. Results pertain only to samples listed in this report. This report may not be reproduced, except in full, without the written approval of the laboratory. Questions should be directed to the person who signed this report. The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the {01 Project Manager. Ili Generated 11/15/2022 1:09:54 PM Revision 1 Authorized for release by Naomi Flanagan, Project Manager Naomi. Flanagan(d).et.eurofinsus.com Designee for Sheila Hoffman, Project Manager II Sheila. Hoffmanaet.eurofinsus.com (912)250-0279 Eurofins Savannah is a laboratory within Eurofins Environment Testing Southeast, LLC, a company within Eurofins Environment Testing Group of Companies WSP USA, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 Project Name: White Street Landfill — Phase I, Phase II, Phase III Project Reference Number: 19131339.106 Sampling Event Date: October 21, 2022 Review Date: January 30, 2022 Report #: CF14770 Initials: AW Review: Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates NC, Inc. has reviewed the laboratory certificates of analysis, chain -of -custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: • Region III Modifications to Functional Guidelines for Organic Data Review Multi -Media, Multi -Concentration, September 1994; • Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and • Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility/C & D List X NC Appendix I (VOAs and Metals) NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List Other: 1.0 CHAIN OF CUSTODY (COC) REVIEW AW COC was properly signed by all parties. AW Correct project name and number are on the form. AW Sample receipt condition at laboratory was acceptable. AW Each sample and blank submitted for analysis appears in the report. WSP USA, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 3 2.0 SAMPLE HOLDING TIMES AW Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). Review Criteria Method Anal tes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW AW Laboratory analyzed at least one internal blank for each method, where applicable. AW Laboratory blank is interference -free. AW Surrogate recoveries are provided for each analytical method, where applicable. AW Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). AW MS/MSD/LCS data results are provided for each analytical method. AW MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). 4.0 ANALYTE LISTS/METHODS AW The proper number of constituents are present for each analyte list as identified above (including detects where applicable). AW Proper EPA SW-846 analytical methods were used for analysis. 5.0 DATA REPORTING AW All analytical reporting associated with the event was performed by the contracted lab AW Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been `flagged' with a `B' where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 1 OX for commonly detected laboratory WSP USA, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 3 contaminants -acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. AW It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 1 Ox resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. AW The report provides the reporting limit for each constituent. AW The results were reported at or below their proper reporting limits (e.g., MDLs). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilutions. AW No inorganic or organic constituents were reported above their respective NC 2L Drinking Water Standards or Interim Maximum Allowable Concentrations (IMACs) in wells or field/equipment/trip blanks or above applicable Surface Water Standards for surface water points. AW No quantifiable inorganic or organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). Toluene was detected for 11t time since 2007. Detection was estimated and below standard. AW Other report issues/Communications with laboratory/etc.: