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Mr. Bruce Woody <br />July 9, 2024 <br />Page 2 <br /> <br /> <br />▪ QA/QC samples (trip blank, duplicate, and field blank). <br /> <br />TRC will prepare a digital version (Adobe Acrobat or functional equivalent) of the report and provide it to <br />OCSWM and to NCDEQ. Additionally, all electronic data deliverables (EDDs) will be compiled and <br />submitted to the State’s EQUIS database per NCDEQ requirements. <br /> <br /> <br />Task-02 - Groundwater Sampling Event 42 (Event 2026 S1) <br /> <br />TRC proposes to conduct groundwater sampling event 40 at the Orange County Regional Landfill – Active <br />C&D Facility during May 2026. <br /> <br />TRC shall coordinate field and laboratory services, obtain groundwater samples, review sampling <br />documentation received from groundwater sampling personnel, chemically analyze groundwater samples <br />(Eurofins), validate analytical data provided by the contracted laboratory, update historical summary tables, <br />and prepare a report suitable for direct submission to NCDEQ. <br /> <br />During the subject sampling event, the laboratory will analyze: <br />▪ samples obtained from four compliance wells (6804-MW204S, 6804-MW209, 6804-MW210D, <br />6804-MW211R) for the constituents listed in Appendix I, one of the constituents listed in <br />Appendix II (mercury), and several parameters that are unique to C&D facilities (manganese, iron, <br />tetrahydrofuran, total dissolved solids, chloride, alkalinity, sulfate). <br />▪ additional samples obtained from well 6804-MW204S for quality control parameters (MS/MSD). <br />▪ QA/QC samples (trip blank, duplicate, and field blank). <br /> <br />TRC will prepare a digital version (Adobe Acrobat or functional equivalent) of the report and provide it to <br />OCSWM and to NCDEQ. Additionally, all EDDs will be compiled and submitted to the State’s EQUIS <br />database per NCDEQ requirements. <br /> <br /> <br />Task-03 – PFAS Sampling and Analysis – If Necessary <br /> <br />A memorandum dated March 13, 2023, by North Carolina Department of Environmental Quality (NCDEQ) <br />Division of Waste Management (DWM), Solid Waste Section (Section), stated that all groundwater, surface <br />water, and leachate samples collected at solid waste sanitary landfills after July 1, 2023, are required to be <br />analyzed for per- and polyfluorinated substances (PFAS). Per this requirement, PFAS sampling and analysis <br />was completed at the Active C&D Landfill during the 2023 S2 and 2024 S1 sampling events. Results of the <br />PFAS analysis were submitted to the NCDEQ under separate cover with the regularly submitted semi- <br />annual monitoring reports. Upon review of the PFAS analysis results, the NCDEQ may require additional <br />analysis for PFAS at select and/or all monitoring wells at the Active C&D facility. Accordingly, laboratory <br />costs for additional PFAS analysis during the upcoming 2025 S2 and 2026 S1 sampling events is included <br />as a separate line item until further direction from the NCDEQ. <br />Docusign Envelope ID: F108C395-3F4F-4103-AF33-FCBEC4DCBF7F