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HomeMy WebLinkAbout2025-709-E-Solid Waste-Groundwater Monitoring Program (FY 2025-2026)-OCSWM South landfillTO: Mr. Bruce Woody Orange County Solid Waste Management FROM: Deborah Coakley, Sean Jarvah, Bilgen Yuncu Environmental Services Division DATE: 06/03/25 SUBJECT: Groundwater Monitoring Program (FY 2025-2026) OCSWM South Landfill: TRC Project No. TBD TRC Engineers, Inc., (formerly Draper Aden Associates) proposes to provide professional environmental services to Orange County Solid Waste Management (OCSWM) pertaining to the groundwater monitoring and corrective action program at the South Landfill, in accordance with an existing Services Agreement between OCSWM and TRC. The subject proposal is intended to encompass services that will be provided to conduct the Fall 2025 and Spring 2024 groundwater sampling/reporting events (July 1, 2025 through June 30, 2026). This proposal is restricted to services to be provided for the South Landfill. Specific tasks to be performed during the service period are detailed as follows. Task-01 Groundwater Sampling Event 63 (Event 2025 S2) TRC proposes to conduct groundwater sampling event 63 at the Orange County Regional Landfill - South Landfill during November 2025. TRC shall coordinate field and laboratory services, obtain groundwater samples, review sampling documentation received from groundwater sampling personnel, chemically analyze groundwater samples (Eurofins), validate analytical data provided by the contracted laboratory, update historical summary tables, and prepare a report suitable for direct submission to NCDEQ. During the subject sampling event, the laboratory will analyze: ▪samples obtained from seven compliance wells (6801-MW101, 6801-MW102S, 6801-MW104, 6801-MW106, 6801-MW107, 6801-MW110S, 6801-MW111) for the constituents listed in Appendix I ▪samples obtained from one compliance well (6801-MW105) for the constituents listed in Appendix II ▪additional samples obtained from well 6801-MW110S for constituents required by regulations for monitoring of C&D landfills (manganese, iron, mercury, chloride, sulfate, tetrahydrofuran, total dissolved solids, alkalinity) (well 6801-MW110S is associated with the monitoring programs Docusign Envelope ID: E79879EB-31A0-44EB-B1E0-900452922197 Mr. Bruce Woody June 03, 2025 Page 2 for both the active C&D landfill and South sanitary landfill) ▪samples obtained from well 6801-MW110D for total arsenic ▪additional samples obtained from well 6801-MW110S for quality control parameters (MS/MSD) In addition to the above analysis, TRC plans to coordinate with field personnel to obtain one leachate sample from the South Facility for the analysis of the constituents listed in Appendix I, plus BOD, COD, manganese, mercury, nitrate, sulfate, and phosphate. TRC will prepare a digital version (Adobe Acrobat or functional equivalent) of the report and provide it to OCSWM and to NC- DEQ. Additionally, all electronic data deliverables (EDDs) will be compiled and submitted to the state’s EQUIS database per NCDEQ requirements. This action was previously covered under the regulatory task. Task-02 Groundwater Sampling Event 64 (Event 2026 S1) TRC proposes to conduct groundwater sampling event 64 at the Orange County Regional Landfill – South Facility during May 2026. TRC shall coordinate field and laboratory services, obtain groundwater samples, review sampling documentation received from groundwater sampling personnel, chemically analyze groundwater samples (Eurofins), validate analytical data provided by the contracted laboratory, update historical summary tables, and prepare a report suitable for direct submission to NC-DEQ. During the subject sampling event, the laboratory will analyze: ▪samples obtained from eight compliance wells (6801-MW101, 6801-MW102S, 6801-MW104, 6801-MW105, 6801-MW106, 6801-MW107, 6801-MW110S, 6801-MW111) for the constituents listed in Appendix I ▪additional samples obtained from well 6801-MW110S for constituents required by regulations for monitoring of C&D landfills (manganese, iron, mercury, chloride, sulfate, tetrahydrofuran, total dissolved solids, alkalinity) ▪samples obtained from well 6801-MW110D for total arsenic ▪additional samples obtained from well 6801-MW110S for quality control parameters (MS/MSD) In addition to the above tasks, TRC plans to coordinate with field personnel to obtain one leachate sample from the South Facility, for the analysis of the constituents listed in Appendix I, plus BOD, COD, manganese, mercury, nitrate, sulfate, and phosphate. TRC also plans to coordinate with field personnel to obtain groundwater samples from one residential well (Ms. Nunn, 1621 Eubanks Road, Chapel Hill, NC 27516; identified as N1) for analysis of the constituents listed in 40 CFR Part 258 (15A NCAC 13B .1600) Appendix I. Docusign Envelope ID: E79879EB-31A0-44EB-B1E0-900452922197 Mr. Bruce Woody June 03, 2025 Page 3 TRC will prepare a digital version (Adobe Acrobat or functional equivalent) of the report and provide it to OCSWM and to NCDEQ. Additionally, all EDDs will be compiled and submitted to the state’s EQUIS database per NCDEQ requirements. This action was previously covered under the regulatory task. Task-03 – PFAS Sampling and Analysis – If Necessary A memorandum dated March 13, 2023, by North Carolina Department of Environmental Quality (NCDEQ) Division of Waste Management (DWM), Solid Waste Section (Section), stated that all groundwater, surface water, and leachate samples collected at solid waste sanitary landfills after July 1, 2023, are required to be analyzed for per- and polyfluorinated substances (PFAS). Per this requirement, PFAS sampling and analysis was completed at the South Landfill during the 2023 S2 and 2024 S1 sampling events. Results of the PFAS analysis were submitted to the NCDEQ under separate cover with the regularly submitted semi-annual monitoring reports. Upon review of the PFAS analysis results, the NCDEQ may require additional analysis for PFAS at select and/or all monitoring wells at the South Landfill facility. Accordingly, laboratory costs for additional PFAS analysis during the upcoming 2025 S2 and 2026 S1 sampling events is included as a separate line item until further direction from the NCDEQ. Task-04 - Stormwater Analytical Stormwater samples will be collected and submitted to the laboratory for analysis by landfill personnel. Laboratory invoices for stormwater samples will be submitted to TRC for payment and billed to OCSWM under this task. Task-05 - Regulatory Compliance TRC proposes to respond to unanticipated issues concerning environmental regulatory compliance that may arise at the active South Landfill during the prescribed service period. This work task will be conducted on a “time-and-materials, not to exceed the estimated fee” basis using the attached TRC fee schedule (Attachment 1). TRC will invoice OCSWM only for actual time expended and reimbursable expenses incurred in providing the required services. The total fee for this task will not be exceeded without approval from OCSWM. COMPENSATION. TRC shall be compensated for performing the above Services as follows. Task Fee Fee structure 01 GW sampling event 63 $15,600 lump sum 02 GW sampling event 64 $16,900 lump sum 03 PFAS Analysis $10,150 lump sum 03 Stormwater analytical $ 2,300 time & materials 04 Regulatory Compliance $ 5,500 time & materials TOTAL NOT TO EXCEED FEE: $50,450 Docusign Envelope ID: E79879EB-31A0-44EB-B1E0-900452922197 Mr. Bruce Woody June 03, 2025 Page 4 In order to authorize initiation of the proposed work, please sign and date this proposal, and return a copy to our office. Meanwhile, if you have any questions, please contact me by e-mail (dcoakley@trccompanies.com) or telephone (804.514.8957). Attachment 1: TRC Fee Schedule - 2025 AUTHORIZATION TO PROCEED [GROUNDWATER MONITORING AND CORRECTIVE ACTION PROGRAMS: FY26 SOUTH LANDFILL Orange County Solid Waste Management date THIS INSTRUMENT HAS BEEN PRE-AUDITED IN THE MANNER REQUIRED BY THE LOCAL GOVERNMENT BUDGET AND FISCAL CONTROL ACT: Office of the Chief Financial Officer date THIS SCOPE OF WORK IS SUBMITTED PURSUANT TO THE TERMS OF THE AGREEMENT DATED FEBRUARY 22, 2017 BETWEEN TRC ENGINEERS, INC., AND ORANGE COUNTY. Thomas R. Laughlin date TRC - Senior Program Manager 50351020-805000 Docusign Envelope ID: E79879EB-31A0-44EB-B1E0-900452922197 11/25/2025 11/25/2025 11/25/2025 CODE TRC LABOR CLASSIFICATION/CATEGORY HOURLY LABOR RATE Principal/Technical Director EV28 Level IV $378.00 EV27 Level III 329.00 EV26 Level II 294.00 EV25 Level I 272.00 Program Manager/Senior Technical Manager EV24 Level IV $264.00 EV23 Level III 244.00 EV22 Level II 238.00 EV21 Level I 228.00 Project/Technical Manager EV20 Level IV $219.00 EV19 Level III 209.00 EV18 Level II 201.00 EV17 Level I 194.00 Senior Scientist/Engineer/Specialist EV16 Level IV $185.00 EV15 Level III 176.00 EV14 Level II 168.00 EV13 Level I 161.00 Project Scientist/Engineer/Specialist EV12 Level IV $153.00 EV11 Level III 145.00 EV10 Level II 138.00 EV09 Level I 128.00 Scientist/Engineer/Specialist, Technicians, and Project Support EV08 Level VIII $122.00 EV07 Level VII 114.00 EV06 Level VI 105.00 EV05 Level V 98.00 EV04 Level IV 88.00 EV03 Level III 81.00 EV02 Level II 74.00 EV01 Level I 59.00 TRC Environmental 2025 Rate Schedule (1) A 15% Mark‐up will be added to non‐labor costs and expenses/ODCs. (2) A 6% Communication Fee will be applied to labor charges in lieu of separate reimbursement for photocopying, report production, faxing, computer usage, software usage, telephone charges, and postage costs. Digital productivity solutions/applications include mobile and desktop applications designed to increase efficiency in data collection and representation, excluding custom development as required on a per project basis. (4) All TRC rates are subject to an annual calendar year escalation. (5) All invoicing will apply TRC billing rates in conformance with the rate schedule in effect at the time of the services. (6) A 2% fee will be applied to the invoice amount to cover Professional Liability and Related Insurance costs. (7) For Litigation or Litigation Support Services, please request a copy of our Standard Rates for Litigation Services. (3) Overtime rates will apply to non-exempt (hourly) staff in conformance with applicable law. Docusign Envelope ID: E79879EB-31A0-44EB-B1E0-900452922197