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f !� r erz Chevron <br /> Pea <br /> Chevron <br /> 15 <br /> Chevron U.SA Products Company <br /> 6001 Bollinger Canyon Rd., Bldg. L <br /> P.O. Box 5004 <br /> February 21 , 1995 San Raman, CA 94583-0804 <br /> Site Assessment & Remediation Group <br /> Mt Harlin Knoll Phone (510) 842-9500 <br /> San Joaquin County Environmental Health Department <br /> P. O. Box 2009 <br /> Stockton, CA 95201 <br /> Re: Former Chevron Station # 9-8632. 575 West Grant Line Road, Tracy CA <br /> Attached Soil and Groundwater Investigation Workplan (GTI, 2/14/95) <br /> Attached Stockpile analytical results (Sequoia Analytical, 8/29/94) <br /> Dear IW Knoll: <br /> Please find attached a workplan dated February 14, 1995, which was prepared by Chevron's <br /> consultant, Groundwater Technology, Inc. (GTI) , to describe the drilling and sampling procedures <br /> associated with the further assessment of soil and groundwater beneath the subject site. <br /> GTI's workplan describes the drilling of four soil borings and the subsequent installation of four <br /> groundwater monitoring wells. GTI will perform well development and subsequent groundwater <br /> sampling will be performed by Chevron' s groundwater monitoring consultant, Blaine Tech <br /> Services. <br /> I would also like to take this opportunity to inform you of Chevron' s plans to backfill and compact <br /> —all-excavations onsite._ATprox mately_three hundred_cubic--yards_ofsoiLgenerated_during��94 <br /> excavation activities have been successfully aerated onsite to below detectable levels for TPHGas <br /> and BTEX constituents. Copies of the stockpile analytical results are attached. Chevron intends to <br /> reuse these soils as backfill material. Backfilling activities are tentatively scheduled for the week of <br /> February 20, 1995. <br /> If you have any questions or comments, you may contact me at (510) 842-8695. <br /> Sincerely, <br /> A4Y/ e /4: Ks <br /> Brett L. Hunter <br /> Environmental Engineer <br /> Site Assessment and Remediation <br /> cc: Elizabeth Thayer, Central Valley RWQCB , Sacramento, CA <br /> Bill Snavely, San Joaquin County Public Health Services, Stockton, CA <br /> Stella Rickman, P. O. Box 244, Tracy, CA 95378 <br /> Kathryn Pudenz, 519 Castro St. , Box 88, San Francisco, CA 94114 <br /> Bette Owen, Chevron USA, Products Company, San Ramon, CA (w/o attachments) <br />