|
Mr. Bruce Woody
<br />June 9, 2023
<br />Page 2
<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
<br />tables, 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 twelve compliance wells (6801-MW04, 6801-MW06R, 6801-MW07R,
<br />6801-MW14A, 6801-MW14B, 6801-MW15, 6801-MW16, 6801-MW17, 6801-MW20, 6801-
<br />MW21S, 6801-MW21D, 6801-MW22) and two surface water locations for the constituents
<br />listed in 40 CFR Part 258 Appendix I (15A NCAC 13B .1600), plus those constituents listed in
<br />Appendix II that have been previously and reliably detected at this facility (mercury,
<br />naphthalene, sulfide)
<br />▪ samples obtained from four “nature and extent” monitoring wells (6801-MW21D2, 6801-
<br />MW23, 6801-MW24, 6801-MW301), for the constituents listed in 40 CFR Part 258 Appendix I
<br />(15A NCAC 13B .1600), plus those constituents listed in Appendix II that have been previously
<br />and reliably detected at this facility (mercury, naphthalene, sulfide)
<br />▪ samples obtained from four wells (6801-MW21S, 6801-MW21D, 6801-MW23, 6801-MW24) for
<br />chloride, carbon dioxide, manganese, potassium
<br />▪ samples obtained from nine monitoring wells (6801-MW04, 6801-MW110S, 6801-MW110D,
<br />6801-MW21S, 6801-MW21D, 6801-MW21D2, 6801-MW23, 6801-MW24, 6801-MW301) for
<br />hexavalent chromium
<br />▪ samples of surface water obtained from two locations along Old Field Creek, for the
<br />constituents listed in 40 CFR Part 258 Appendix I (15A NCAC 13B .1600), plus those
<br />constituents listed in Appendix II that have been previously and reliably detected at this facility
<br />(mercury, naphthalene, sulfide)
<br />▪ additional samples obtained from well 6801-MW04 for constituents required by regulations for
<br />monitoring of C&D landfills (manganese, iron, chloride, sulfate, total dissolved solids, alkalinity)
<br />(well 6801-MW04 is associated with the monitoring programs for both the active C&D landfill
<br />and North sanitary landfill)
<br />▪ all samples (16 wells and two surface water locations) for full list of PFAS compounds (40
<br />analytes) of EPA (draft) method 1633 per NCDEQ requirements
<br />▪ additional samples obtained from well 6801-MW04 for quality control parameters (MS/MSD)
<br />▪ one trip blank for quality control parameters and one duplicate, one field blank and one
<br />equipment blank (per media) for PFAS.
<br />
<br />TRC will prepare a digital version (Adobe Acrobat or functional equivalent) of the report and provide it to
<br />OCSWM and to NC- DEQ. Additionally, all electronic data deliverables (EDDs) will be compiled and
<br />submitted to the State’s EQUIS database per NCDEQ requirements. This action was previously covered
<br />under the regulatory task.
<br />DocuSign Envelope ID: 754C78C8-AE53-4935-9892-9E38717EABDC
|