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Gievron <br /> Chevron <br /> , �f E 110. 37 <br /> Chevron USA Products Company <br /> ` 6001 Bollinger Canyon Road <br /> April 29, 1996 Building 1_ <br /> San Ramon,CA 94583 <br /> P0.Box 5004 <br /> San Ramon,CA.94583-0804 <br /> Mr. Joe Najera Marketing—Northwest Region <br /> Fillner Construction. Inc. Phone 510 842 9500 <br /> 4061 Seaport.Bled. <br /> Sacramento. CA 95691-3416 <br /> -Rz:^z Chevron Station#9-41°83¢236 N.=Ham Ln:_Lodi. CA ^• — — ,_ t <br /> Dear Mr. Najera: I <br /> Chevron was at the subject site on Friday. April 26, 1995 to oversee the removal of contaminated soil <br /> from the former waste oil tank area. The excavation and subsequent soil sampling was also witnessed by <br /> Mr. Harlin Knoll. of San Joaquin County Public Health Services. The final depth of the excavation was 22 <br /> feet below ground surface. An estimated 500 cubic yards of soil were removed and stockpiled onsite. As a <br /> result of his onsite field inspection of the remedial efforts, Harlin Knoll indicated that there would be no <br /> further soil remediation required in the former waste oil tank area. In addition, Mr, Knoll agreed with the <br /> proposal to immediately backfill and compact the open excavation. Mr. Knoll also agreed to using <br /> stockpiled soil generated from the former fuel tank excavation as backfill material provided that those <br /> stockpile soils containing detections of TPHGas and gasoline constituents be backfilled at the shallowest <br /> depths. <br /> In light of the above information, Chevron hereby authorizes Fillner Construction to backfill and compact <br />!` (close) the former waste oil tankpit. Once the bottom I I feet of the excavation have been filled with <br /> import rock. the remaining excavation is to be filled and compacted using stockpiled soils from both, the <br /> new fuel tankpit and the former fuel tankpit. Those remaining fuel tank soils not needed for elevating the <br /> present grade will be hauled offsite for disposal. <br /> Lf further information is required, please contact me directly at(51.0) 842-8695.. <br /> Sincerely, <br /> Brett L. Hunter <br /> Environmental Engineer <br /> Site Assessment and Remediation <br /> cc: Harlin Knoll, San Joaquin County Public Health Services. P.O...Box 388. Stockton. CA 95201- <br /> 0388 <br /> Elizabeth Thaver_ Central Valley RWQCB, 3443 Routier Road. Suite A, Sacramento. CA <br />