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Vo <br />C7 <br />INTERNATIONAL <br />TECHNOLOGY <br />CORPORATION <br />February 15, 1991 <br />Ms. Kasey Foley <br />Public Health Services <br />San Joaquin County <br />Post Office Box 2009 <br />Stockton, California 95201 <br />BP Oil Site No. 11192 <br />New Tank Pit Sample Results <br />Dear Kasey: <br />0 <br />IT Project No. 190632 <br />Attached are sample results for hydrocarbons and EDB from the new tank pit at <br />BP Oil Site No. 11192, located at 1403 Country Club Drive in Stockton. <br />All seven samples are non -detect for both hydrocarbon constituents and <br />ethylene dibromide. Total lead was found in every sample. In five of the <br />samples it was at levels above 5 mg/kg, so I had the lab run Waste Extraction <br />Tests (WET) on each of those five samples. Those results were faxed to you <br />late today from Jennifer Payne at Annametrix (San Jose). The WET results show <br />that the lead is non-soluable. This implies that it is inorganic (i.e., <br />natural in origin) and will not leach into groundwater. <br />The sum results suggest that no fuel components have entered soils in the new <br />tank pit. Your approval to place new tanks in this pit is requested. <br />Sincerely, <br />Dan Wynne <br />Project Manager <br />DBW:1 pj <br />MA:LTR:9542 <br />Attachments: Site Plan <br />Regional Office <br />4585 Pacheco Boulevard - Martinez, California 94553 - 415-372-9100 <br />IT Corporation is a wholly owned subsidiary of International Technology Corporation <br />