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� w <br /> S 5+ r <br /> �a <br /> sits Contamination Workplan <br /> Stockton Plating Inc. <br /> Pag• -2_ <br /> 1 <br /> ew.. <br /> the fieldwork and laboratory analyses proposed. The SCW has been <br /> prepared at the request of Mr. Keith Tallia, Oil Equipment <br /> Service. <br /> 2.0 HISTORY. <br /> is <br /> On August 14, 1986, one 1,000-gallon underground leaded <br /> ti <br /> gasoline storage tank (TRI-86) was removed from SPI by the <br /> American Environmental Management Corporation (AEMC), of Rancho <br /> Cordova, California. AEMC reported the tank was ing ood <br /> condition with no apparent holes or stress fractures. <br /> Approximately 12:cubic yards of soil were excavated during the <br /> i <br /> tank removal. The soils appeared to have no discoloration or <br /> petroleumodor. One soil sample (SP-1) was collected by AEMC <br /> from the center of the excavation floor, beneath the farmer tank <br /> location. <br /> 3 <br /> I <br /> i <br /> Laboratory analyses of the soil sample indicated that diesel <br /> and motor oil were detected at 652 mg/kg. Total lead was <br /> detected at 150.3 mg;'kg. AEMC concluded that except for the <br /> relatively high total lead concentration, the analytical results <br /> do not indicate evidence of gasoline contamination. <br /> On August 25 19 t <br /> . gu ► &6, a the direction of the San Joaquin <br /> County Environmental Health Department, AEMC removed an <br /> i <br /> Nt4 <br /> CONDOR . <br />