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Chevron <br /> Chevron <br /> 20 <br /> Chevron U.S.A.Products Company <br /> 6001 Bollinger Canyon Road <br /> September 27, 1994 Building L <br /> p San Ramon.CA 94583 <br /> P.O.Box 5004 <br /> San Ramon,CA 94583-0804 <br /> Mr Michael Infurna Marketing—Northwest Region <br /> San Joaquin County Environmental Health Phone 510 842 9500 <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> Re: Former Chevron Station#9-4054. 2103 Country Club Blvd., Stockton CA <br /> Attached groundwater monitoring report(GTI,9/6/94) <br /> Dear Mr. Infurna: <br /> Please find attached a report dated September 6, 1994, which was prepared by Chevron's <br /> consultant, Groundwater Technology, Inc. (GTI), to describe groundwater monitoring performed <br /> at the subject site on August 15, 1994. <br /> The measured direction of groundwater flow during GTI's August visit was toward the north- <br /> northeast. The calculated gradient was 0.006 ft./ft. All seven site-related monitoring wells were <br /> sampled and analyzed for the presence of TPHGas and BTEX constituents. Detectable <br /> concentrations of dissolved hydrocarbons were measured at all seven wells. The detected <br /> concentrations were similar to those previously detected. <br /> Per your request, all future monitoring reports will contain groundwater gradient information. If <br /> you have any questions or comments,I can be reached at(510) 842-8695. <br /> Sincerely, <br /> /,SAN I �� <br /> Brett L. Hunter <br /> Environmental Engineer <br /> Site Assessment and Remediation <br /> Attachment <br /> ce: Gordon Boggs, Central Valley RWQCB, Sacramento, CA <br /> Arthur Berberian,2021 W. March Lane, Suite 2A, Stockton, CA 95207 <br /> Patrick Craig, 721 N. Union St., Stockton, CA 95205 <br /> Bette Owen, Chevron USA, Products Company,San Ramon, CA (w/o attachment) <br />