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DocuSign Envelope ID: D3F23F86-A740-4F6C-8F1F-3ED35AB81D1C
<br /> Mr. Bruce Woody
<br /> May 9, 2019
<br /> Page 2of12
<br /> During the subject sampling event, the laboratory will:
<br /> ■ analyze samples obtained from two compliance wells (MW-215, MW-21D) and two nature-and-
<br /> extent wells (MW-23, MW-24) for the following constituents, as specified in the Underground
<br /> Injection Permit: carbon dioxide, chloride, manganese, mercury, potassium, volatile organic
<br /> compounds listed in NC-DEQ Appendix I
<br /> Analytical results will be incorporated into a report pertaining to a regularly scheduled compliance sampling
<br /> events.
<br /> Task R00592-216N-02
<br /> Groundwater Sampling Event 52 (Event 2019 S2)
<br /> DAA proposes to conduct groundwater sampling event 52 at the Orange County Regional Landfill — North
<br /> Facility during November, 2079.
<br /> DAA shall coordinate field and laboratory services, obtain groundwater samples, review sampling
<br /> documentation received from groundwater sampling personnel, chemically analyze groundwater samples
<br /> (ENCO), validate analytical data provided by the contracted laboratory, update historical summary tables,
<br /> and prepare a report suitable for direct submission to NC-DEQ.
<br /> During the subject sampling event, the laboratory will:
<br /> ■ analyze 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-MW21S,
<br /> 6801-MW21D, 6801-MW22) and two surface water locations for the constituents listed in 40 CFR
<br /> Part 258 Appendix I (15A NCAC 13B .1600), plus those constituents listed in Appendix II that have
<br /> been previously and reliably detected at this facility (mercury, naphthalene,sulfide)
<br /> ■ analyze samples obtained from two "nature and extent" monitoring wells (6801-MW23, 6801-
<br /> MW24), for the constituents listed in 40 CFR Part 258 Appendix 1 (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 /> ■ analyze samples obtained from four additional wells (6801-MW21S, 6801-MW21D, 6801-MW23,
<br /> 6801-MW24) for chloride and carbon dioxide
<br /> ■ analyze samples obtained from four monitoring wells associated with the groundwater remediation
<br /> injection program (6801-MW21 S, 6801-MW21 D, 6801-MW23, 6801-MW24), for the following
<br /> additional inorganic constituents, in accordance with the approved Underground Injection Control
<br /> permit: manganese, potassium
<br /> Blacksburg, VA •Charlottesville, VA •Hampton Roads, VA •Richmond, VA •Manassas, VA,
<br /> Fayetteville,NC•Raleigh,NC
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