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�✓ `Chevron <br /> Chevron <br /> Chevron-U.SA Products Company <br /> 6001 Bollinger Canyon.Rd., Bldg. L <br /> P.O. Box 5004 <br /> San Ramon, CA 94583-0804 <br /> Site Assessment&Remediation Group <br /> Phone(510)842-9500 <br /> September 19, 1995 <br /> Ms.Mary Meays <br /> San Joaquin County Environmental Health <br /> P.O. Box 2009 <br /> Stockton,CA 95201 <br /> Re: Chevron Station#9-4275,2905 West Benjamin Holt Drive, Stockton, CA <br /> Attached groundwater monitoring report(Blaine Tech, 7/13/95) <br /> Dear Ms. Meays: <br /> Attached you will find a report dated July 13, 1995,which was prepared by Chevron's consultant,Blaine <br /> Tech Services,Inc. (Blaine Tech),to describe groundwater monitoring performed at the subject site on <br /> June 1, 1995. <br /> During their June site visit Blaine Tech gauged and sampled all nine wells. The measured groundwater <br /> elevations were the highest observed at the site in six years of monitoring.The groundwater flow direction <br /> remained northeasterly. All groundwater samples were analyzed for TPHGas and BTEX constituents. <br /> Dissolved petroleum hydrocarbons were detected at all wells except,MW-3,MW-7,and MW-9. There <br /> was a noticeable increase in dissolved hydrocarbon concentrations measured at the remaining six wells. <br /> These increases were probably in response to the increase in groundwater elevation across the subject site. <br /> If you have any questions or comments,I can be reached at(510) 842-8695. <br /> Sincerely, <br /> ISA/ <br /> Brett L.Hunter <br /> Environmental Engineer <br /> Site Assessment and Remediation <br />