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Chevron <br /> Chevron <br /> Chevron U.S.A.Products Company <br /> 6001 Bollinger Canyon Road <br /> Building L <br /> San Ramon,CA 94583 <br /> P0.Box 5004 <br /> San Ramon,CA 94583-0804 <br /> December 28, 1995 <br /> Marketing—Northwest Region. <br /> Phone 510 842 9500 <br /> Ms,Mary Meays <br /> San Joaquin County Environmental Health <br /> P.O. Box 388 <br /> Stockton, CA 95201-0388 <br /> Re: Chevron Station#9-4275 2905 West Benjamin Holt Drive, Stockton,CA <br /> Attached groundwater monitoring report(Blaine Tech, 10/16/95) <br /> Dear Ms.Meays: <br /> Attached you will find a report dated October 16, 1995,which was prepared by Chevron's consultant, <br /> Blaine Tech Services,Inc. (Blaine Tech),to describe groundwater monitoring performed at the subject site <br /> on September 11, 1995. <br /> In September,Blaine Tech gauged and sampled all nine wells. All groundwater samples were analyzed <br /> for the presence of TPHGas and BTEX constituents.The-measured direction of groundwater flow was <br /> generally toward the east.Dissolved petroleum hydrocarbons were detected at all wells except,MW-3, <br /> MW-4,and MW-7.The measured concentrations were consistent with those detected during previous site <br /> monitoring events. <br /> I appreciated the opportunity to discuss aspects of the proposed corrective action plan with you on <br /> December 8, 1995.Both,Chevron and Geraghty&Miller will continue to keep you informed of site <br /> remediation activities as they proceed according to the schedule which was modified during our meeting. <br /> If you have any questions or comments,I can be reached at(5 10) 842-8695. <br /> Sincerely, <br /> ,6A& l <br /> Brett L.Hunter <br /> Environmental Engineer <br /> Site Assessment and Remediation <br /> F��Cyciczc. <br /> J <br />