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i <br /> DocuSign Envelope ID: EFA88B6F-0355-4B44-B93F-9D3AE5DE91C0 <br /> Mr. Kevin Lindley <br /> February 1,2018 <br /> Page 4 of 11 <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 three monitoring wells associated with the sanitary landfill (6801- <br /> MW6R, 6801-MW7R, 6801-MW17), and analyzed for the constituents listed in 40 CFR Part 258 <br /> Appendix I (15A NCAC 13B .1600), plus those constituents listed in Appendix II that have been <br /> previously and reliably detected at this facility(mercury, naphthalene, sulfide) <br /> ■ analyze samples obtained from nine monitoring wells associated with the sanitary landfill (6801- <br /> MW4, 6801-MW14A, 6801-MW14B, 6801-MW15, 6801-MW16, 6801-MW20, 6801-MW21 S, 6801- <br /> MW21 D, 6801-MW22), and analyzed for the constituents listed in 40 CFR Part 258 Appendix II (15A <br /> NCAC 13B .1600) <br /> ■ analyze samples obtained from two "nature and extent" monitoring wells (6801-MW23, 6801- <br /> MW24), and analyzed for the constituents listed in 40 CFR Part 258 Appendix 1 (15A NCAC 13B.1600), <br /> plus those constituents listed in Appendix II that have been previously and reliably detected at this <br /> facility(mercury, naphthalene, sulfide) <br /> • analyze samples obtained from four additional wells (6801-MW215, 6801-MW21 D, 6801-MW23, <br /> 6801-MW24) for chloride and carbon dioxide <br /> ■ samples shall be obtained from four monitoring wells associated with the groundwater remediation <br /> injection program (6801-MW21S, 6801-MW21D, 6801-MW23, 6801-MW24), and analyzed for the <br /> following additional inorganic constituents, in accordance with the approved Underground Injection <br /> Control permit: manganese, potassium <br /> • analyze samples of surface water obtained from two locations along Old Field Creek, and analyzed <br /> for the constituents listed in 40 CFR Part 258 Appendix II (15A NCAC 13B .1600) <br /> ■ analyze additional samples obtained from well MW-04 for constituents required by regulations for <br /> monitoring of C&D landfills (manganese, iron, chloride, sulfate, total dissolved solids, alkalinity) <br /> ■ analyze additional samples obtained from well MW-04 for quality control parameters <br /> ■ analyze one trip blank for quality control parameters <br /> DAA will prepare one printed copy of the report,which will be delivered to OCSWM. DAA will also prepare a <br /> digital version (Adobe Acrobat or functional equivalent) of the report and provide it to OCSWM and to NC- <br /> DEQ. <br /> Task R00592- <br /> Environmental Compliance <br /> ftc,4sburg, VA - Charlouesrdle, VA - Hamploa7 Roads, K4 • Richmond. V4 • Manassas, VA. <br /> Frlvelleville. AIC • Raleigh, A7C <br />