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-..- � • <br /> Ms. Laurie Cotulla <br /> October 5, 1987 <br /> Page 4 <br /> Based on these conclusions, we recommend that the excavation remain <br /> backfilled- at this time. For --afety purposes and to prevent surface <br /> water infiltration, the excavation should be sealed with an asphalt <br /> cover. <br /> BC is continuing the investigation and remediation at the subject <br /> site. We recommend that the hydrocarbon product found in the soil <br /> during waste oil tank removal be treated as part of the entire <br /> hydrocarbon problem at the site. <br /> Please review this report of our latest findings and inform us of <br /> any additional recommendations or requirements in regards to the <br /> waste oil tank removal. I€ you have any questions or comments <br /> Sr concerning the subject site, please contact me or Ms. Johanna Ambler <br /> at (916) 444--0123. <br /> ' Very truly yours, <br /> BROWN AND CALDWELL <br /> ay E. Philbips <br /> Projact Manager <br /> LEP:JLN:mrp <br /> i <br /> Encloscre <br /> cc/enc: Ms. Karen Schultheis, ARCO Petroleum Products Company, <br /> San Mateo <br /> Mr. Hank Sheetz, ARCO Petroleum Products Company, <br /> Pleasanton i <br /> 1 <br /> o <br /> BROWN AND CALDWELL <br /> 72355TPEET SIVAMENTO.CA 95816•,91&1++4.0120 - - - - <br /> jC. _ - <br />