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+" �• d 'a�'fN"��, ra '?���"-� �s= r`v� �` w- � ''�3i.2 3�,:. _`l's � ,�, n �v _N was. <br /> 3 <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 safety purposes and to prevent surface <br /> nater 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. If you have any questions or ccmments <br /> concerning the subject site, please contact me or Ms. Johanna Ambler <br /> at (916) 444--0123. <br /> Very truly yours, <br /> 1 <br /> BROWN AND CALDWELL <br /> y E. Phil.4 <br /> Phil <br /> Manager <br /> LEP:JLA:mrp <br /> Enclosure <br /> cc/enc: Ms. Karen Schultheis, ARCO Petroleum Products Company; <br /> San Mateo <br /> Mr. Hank Sheetz, ARCO Petroleum Products Company, <br /> Pleasanton <br /> i <br /> ..J <br /> BROWN AND CALDVtiELL _ <br /> T 7235;IALET ;'ACAAMCNTO,CA9SH14+•!8161444-0123 <br /> 7 <br /> i! <br /> of - <br /> ;r. <br />