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Chevron <br /> < < chevron <br /> : rid <br /> �Q.1f, rr,oe„� .- <br /> 31 PH 2: 33 <br /> Chevron U.S.A. Products Company <br /> 6001 Ballinger Canyon Rd.,BldgA <br /> P.O. Box 5004 <br /> October 26, 1994 San Ramon,CA 94583 0604 <br /> Site Assessment&Remediation Group <br /> Phone(510)842-9500 <br /> Ms. Mary Ways I` <br /> .San Joaquin County Environmental Health <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> Re: Former Chevron Station#9-.1918 45&M Harding Wav Stockton CA <br /> Attached groundwater mom toting report(GTI, 8/8/94) <br /> Dear Ms..Mcaysi <br /> Attached is a report dated August 8,_1994, which was prepared by.Chevron's consultant, <br /> Groundwater Technology Inc- (GTI),to describe the results of groundwater monitoring which;was <br /> performed at the subject site on July 8,1994.Five of the fourteen site-related wells were gauged <br /> and sampled. The remaining nine wells were reported dry. ! <br /> During July the measured direction of groundwater flow beneath the sitewastoward the east- <br /> northeast. Thiswasconsistent with previous gradient measurements. Groundwater samples were <br /> analyzed for the presence of TPHGas and BTEX constituents. Detectable concentrations of <br /> dissolved hydrocarbons were measured at wells MW-9, MW-11,and MW-12. Non-detect results <br /> were measured at wells MW-10 and MW-13.The quarterly monitoring results demonstrate that'the <br /> dissolved hydrocarbon plume is defined and that no significant migration is occurring. <br /> If you have any questions or comments,I can be reached at(510) 842-8695. <br /> ,t <br /> Sincerely, <br /> Brett L.Hunter <br /> Environmental Engineer <br /> Site Assessment and Remediation <br /> Attachment <br /> cc: Elizabeth.Thayer, Central Valley RWQCB, Sacramento, CA <br /> Carolyn Lawrence, 6318 Chesapeake Circle, Stockton, CA 95219 <br /> Michael F.Babitzke, 6 South El Dorado, Suite 305, Stockton, CA 95202 <br /> Bette Owen, Chevron USA;Products Company, San Ramon;CA (w/o attachment) <br /> Hscy6ed - - - - - - <br /> HtaoYciubie .. - <br />