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N) <br /> 15 November 2005 <br /> AGE-NC Project No 04-1239 <br /> Page 5 of 5 <br /> 3 3 WELL DEVELOPMENT <br /> Development of the proposed wells will consist of a combination of bailing with a stainless steel <br /> bailer to remove the major portion of fine-grained sediment from inside the well, surging to flush <br /> out or draw in sediment from the filter pack,and additional ground water evacuation with a Waterra <br /> inertia pump to finish the removal of fine-grained sediment Developmental purging activities will <br /> be continued until field parameters(pH,electrical conductivity,and temperature)have stabilized and <br /> purged water is visually sediment-free <br /> 3 4 GROUNDWATER SAMPLING PROCEDURES <br /> Ground water sample collection will be performed as described in the AGE-prepared Preliminary <br /> Site Investigation Work Plan, dated 27 December 2004 <br /> 3 5 EQUIPMENT DECONTAMINATION/WASTE MANAGEMENT <br /> . All sampling tools will be thoroughly rinsed with clean water after being washed with a solution of <br /> Alconox All down-hole drilling equipment will be pressure washed prior to starting each boring <br /> Cuttings and rinseate generated during drilling and ground water sampling activities will be <br /> containerized in properly labeled,Department of Transportation(DOT)-approved 55-gallon drums <br /> and stored on-site in an area lacking public access Disposal alternatives will be evaluated based on <br /> the results of soil analysis <br /> Advanced GeoEnvironmental,Inc <br />