HomeMy WebLinkAbout2023-335-E-Solid Waste-Draper Aden Associates-Groundwater monitioring program FY 2023-2024
TO: Mr. Bruce Woody
Orange County Solid Waste Management
FROM: Sean Jarvah
Environmental Services Division
DATE: 06/09/23
SUBJECT: Groundwater Monitoring Program (FY 2023-2024)
OCSWM Active C&D Landfill:
TRC Project No. pending
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 Active C&D Landfill, in accordance with an existing Services
Agreement between OCSWM and TRC.
The subject proposal is intended to encompass services that will be provided during the 12-month period
between July 1, 2023, and June 30, 2024 (FY 2023-2024).
This proposal is restricted to services to be provided for the active C&D Landfill. Specific tasks to be
performed during the service period are detailed as follows.
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). This includes any active, inactive, or closed
sanitary landfill currently conducting and reporting water quality and/or leachate sampling results to the
Section. Per this requirement, PFAS sampling is included in this proposal and additional laboratory
analytical fees are reflected in the sampling fees provided below.
Task-01
Groundwater Sampling Event 37 (Event 2023 S2)
TRC proposes to conduct groundwater sampling event 37 at the Orange County Regional Landfill – Active
C&D Landfill during November 2023. Prior to the event, TRC proposes to develop MW-209 using the
dedicated pump currently installed in this well. This well had high turbidity during the previous sampling
event. Due to the additional PFAS analysis, all efforts should be made to reduce turbidity below 25 NTUs
if possible. This activity is only scheduled for the 2023 S2 event.
TRC shall coordinate field and laboratory services, obtain groundwater samples, review sampling
documentation received from groundwater sampling personnel, chemically analyze groundwater samples
DocuSign Envelope ID: C990D277-21FB-4C06-B4C9-915AC8E361A8
Mr. Bruce Woody
June 9, 2023
Page 2
(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 four compliance wells (6804-MW204S, 6804-MW209, 6804-MW210D,
6804-MW211R) for the constituents listed in Appendix I, one of the constituents listed in
Appendix II (mercury), and several parameters that are unique to C&D facilities (manganese, iron,
tetrahydrofuran, total dissolved solids, chloride, alkalinity, sulfate).
▪ all samples (4 monitoring wells) for full list of PFAS compounds (40 analytes) of EPA (draft)
method 1633 per NCDEQ requirements.
▪ additional samples obtained from well 6804-MW-204S for quality control parameters (MS/MSD)
▪ one trip blank for quality control parameters and one duplicate, one field blank for PFAS.
TRC will prepare a digital version (Adobe Acrobat or functional equivalent) of the report and provide it to
OCSWM and to NCDEQ. 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 38 (Event 2024 S1)
TRC proposes to conduct groundwater sampling event 38 at the Orange County Regional Landfill – Active
C&D Facility during May 2024.
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 four compliance wells (6804-MW204S, 6804-MW209, 6804-MW210D,
6804-MW211R) for the constituents listed in Appendix I, one of the constituents listed in
Appendix II (mercury), and several parameters that are unique to C&D facilities (manganese, iron,
tetrahydrofuran, total dissolved solids, chloride, alkalinity, sulfate).
▪ all samples (4 monitoring wells) for full list of PFAS compounds (40 analytes) of EPA (draft)
method 1633 per NCDEQ requirements.
▪ additional samples obtained from well 6804-MW204S for quality control parameters (MS/MSD).
▪ one trip blank for quality control parameters and one duplicate, one field blank for PFAS.
DocuSign Envelope ID: C990D277-21FB-4C06-B4C9-915AC8E361A8
Mr. Bruce Woody
June 9, 2023
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.
Task-03
Environmental Compliance
TRC proposes to respond to unanticipated issues concerning environmental regulatory compliance that
may arise at the active C&D Landfill during the prescribed service period.
TRC will prepare one printed copy of any correspondence that may arise in connection with this task, which
will be delivered to OCSWM. TRC will also prepare a digital version (Adobe Acrobat or functional equivalent)
of each correspondence 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.
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COMPENSATION. TRC shall be compensated for performing the above Services as follows:
Task Fee Fee structure
01 GW sampling event 37 $12,500 lump sum
02 GW sampling event 38 $14,000 lump sum
03 Regulatory Compliance $2,500 time & materials
TOTAL NOT TO EXCEED FEE: $29,000
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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
(sjarvah@trccompanies.com) or telephone (919.345.4177).
cc: Mr. Tom Laughlin (TRC - Environmental Services Division)
Mr. Steve Gandy (TRC - Waste Resource Engineering)
Ms. Bilgen Yuncu (TRC - Project Manager/Professional Engineer)
Ms. Deborah Coakley (TRC - Project Manager)
DocuSign Envelope ID: C990D277-21FB-4C06-B4C9-915AC8E361A8
Mr. Bruce Woody
June 9, 2023
Page 4
AUTHORIZATION TO PROCEED
[GROUNDWATER MONITORING AND CORRECTIVE ACTION PROGRAMS: FY23-24]
ACTIVE C&D 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
DocuSign Envelope ID: C990D277-21FB-4C06-B4C9-915AC8E361A8
7/25/2023
7/25/2023
7/25/2023