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i <br /> rnevmn <br /> Chevron <br /> Chevron USA Products Company <br /> 6001 Bollinger Canyon Rd., Bldg. l <br /> P.O. Sox 5004 <br /> October 12, 1994 San Ramon, CA 94583-0804 <br /> Site Assessment& Remediation Group <br /> Phone(510)842-9500 <br /> Ms. Linda Turkatte <br /> San Joaquin County Environmental Health <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> Re: Chevron Station#9-6465 5608 North Pershing Avenue Stockton CA <br /> Attached groundwater monitoring report(GTI, 9126194) <br /> Dear Ms. Turkatte: <br /> Please find attached a report dated September 26, 1994, which was prepared by,Chevron's <br /> consultant, Groundwater Technology, Inc. (GTI), to describe groundwater monitoring and <br /> sampling that was performed at the subject site on September 2, 1994. <br /> During GTI's August site visit all tliree site-related monitoring wells were gauged and sampled. <br /> The measured direction of groundwater flow was generally toward the east-northeast. Monitoring <br /> wells MW-4A,MW-10, and MW-11 were sampled and analyzed for the presence of TPHGas and <br /> BTEX. There were no detectable concentrations of dissolved petroleum hydrocarbons measured at <br /> any of the three wells. <br /> The site was referred to the Central Valley Regional Water Quality Control Board for case closure <br /> in your letter dated,April 22, 1994. All site-related information has been provided to the Regional <br /> Board to facilitate their review for,case closure. The groundwater data continues to support a <br /> decision to close the case however, no decision has been issued by the Regional Board:'All parties <br /> involved would like to have this issue settled. Your assistance in this regard would ibe greatly <br /> appreciated. <br /> If you have any questions or comments, I can be reached at(510) 842-8695. <br /> Sincerely, <br /> /t4N . / <br /> Brett L. Hunter <br /> Environmental Engineer <br /> Site Assessment and Remediation <br /> Attachment <br />