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1 YwI e <br /> Chevron <br /> Chevron <br /> Chevron u.SA Products Company <br /> 6001 Ballinger Canyon Rd. Bldg L <br /> P 0 Box 5004 <br /> October 12, 1994 San Raman, CA 94583-0804 <br /> Site Assessment& Remediation Group <br /> Phone(5101842-9500 <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 three 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 be greatly <br /> appreciated <br /> If you have any questions or comments, I can be reached at(510) 842-8695 <br /> Sincerely, ® nr4 � FT, ; <br /> IJAX <br /> QCT 1 'I19q4 <br /> BrettL Hunter I:NViiZUivr., , �ih� _iH <br /> Environmental Engineer PRONr . liALiCES <br /> • Site Assessment and Remediation <br /> Attachment <br />