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Reference: Remediation Well Destruction Work Plan <br /> Attachment 1 Field and Laboratory Procedures <br /> February 22,2018 <br /> STANDARD PROCEDURE FOR <br /> EQUIPMENT DECONTAMINATION <br /> Equipment that could potentially contact subsurface media and compromise the integrity of the samples is <br /> carefully decontaminated prior to drilling and sampling. Drill augers and other large pieces of equipment <br /> are decontaminated using high pressure hot water spray. Samplers,groundwater pumps,liners and other <br /> equipment are decontaminated in an Alconox scrub solution, and double-rinsed in clean tap water rinse <br /> followed by a final distilled water rinse. <br /> The rinsate and other wastewater are contained in 55-gallon,DOT-approved drums,labeled(to identify <br /> the contents,generation date and project)and stored on-site pending waste profiling and disposal. <br /> Stantec <br /> 2 <br />