Laserfiche WebLink
a� <br /> Problem Assessment Report December 5, 1989 <br /> USA Petroleum Station No. 65, Lodi, California AGS 87050-3 <br /> laboratory analyses. The same procedures were perfornied for well hIW-6 on February 27, <br /> 1989, and for well N[W-7 on March 31, 1989. <br /> Prior to purging, the static water levels were measured using a Solinst wMer-level meter <br /> accurate to the nearest 0.€11 foot. A bailer.washed with Alconox (a commercial laboratory <br /> soap), and rinsed with deionized water was used to collect a sample from the air-water <br /> i <br /> interface in each well. Half the length of the bailer was lowered below the air-water <br /> interface, and a sample retrieved and examined for subjective evidence of hydrocarbon } <br /> contamination(floating product,shaen,or emulsion). The Summary of Subjective Analyses <br /> (Table 5) indicates no subject;vt evidence of hydrocarbon contamination was detected in <br /> ',tea wells MW-1 through M%V-7. <br /> For each well, approximately 3 well volumes were purged using a stainless steel electrical <br /> submersible pump to.allow sampling of representative formation water. The recovered <br /> fluids from developing and sampling in each well were directed into type 17E, steel, 55-" <br /> i` gallon liquid waste drums, approves{ for this use by the Department of Transportation. <br /> € Discharged water was monitored for pl-1, temperature, and conductivity. Stabilization of <br /> f these parameters were used to indicate that formation water was entering the well. After <br /> -� --= - ur inv"��ter to drums;the water in each mon;#^ria well was allowed #o recharge to near <br /> - l? g g g --- – - - — <br /> its static water level before water samples were collected for laboratory analysis. <br /> r <br /> 21 <br /> i <br /> Applled aeosystems <br />