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DocuSign Envelope ID: D3F23F86-A740-4F6C-8F1F-3ED35AB81D1C <br /> Mr. Bruce Woody <br /> May 9, 2019 <br /> Page 3 of 12 <br /> ■ analyze 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 1313.1600), plus those constituents listed <br /> in Appendix 11 that have been previously and reliably detected at this facility (mercury, naphthalene, <br /> sulfide) <br /> ■ analyze additional samples obtained from well 6801-MW04 for constituents required by regulations <br /> for 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 and <br /> North sanitary landfill) <br /> ■ analyze additional samples obtained from well 6801-MW04 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 R00592-216N-03 <br /> Groundwater Sampling Event 52-CA <br /> DAA proposes to conduct corrective action groundwater sampling event 52 (event 52-CA) at the Orange <br /> County Regional Landfill — North Facility during February, 2020. <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 two compliance wells (MW-21 S, MW-21 D) 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 /> 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 /> Blacksburg, VA •Charlottesville, VA •Hampton Roads, VA •Richmond, VA •Manassas, VA, <br /> Fayetteville,NC•Raleigh,NC <br />