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4 N001 <br /> Chevron <br /> Chevron U.S.A. Inc. <br /> 2410 Camino Ramon, San Ramon, California• Phone (510) 842-9500 <br /> Mail Address:P.O.Box 5004,San Ramon,CA 94583-0804 <br /> Marketing Department <br /> March 2, 1992 <br /> Mr. Steve Schneider $ <br /> San Joaquin County Environmental Health MAR 0 5 1992 <br /> P.O. Box 2009 ,. }'> 1> <br /> Stockton, CA 95201 E.NVIRQNMEN�(A <br /> PERMlT/sLFty iI,CJ <br /> Re: Chevron Station#9-6171 <br /> 6633 Pacific Avenue, Stockton, CA <br /> Dear Mr. Schneider: <br /> Please find attached a report dated January 6, 1992, which was prepared by Chevron's consultant, <br /> Sierra Environmental Services (Sierra), to describe groundwater monitoring performed on <br /> December 6, 1991, at the site captioned above. <br /> I apologize for the lateness of submitting this report. The original draft report was dated January <br /> 6, 1992, but the revised final report was only received by me on February 27, 1992. The report <br /> was revised in order to include revised laboratory reports which explained chemists notes <br /> concerning the chromatograms, as explained in the attached transmittal letter from Sierra dated <br /> February 25, 1992. <br /> The direction of groundwater gradient and the presence of dissolved hydrocarbons were consistent <br /> with previous observations at this site. <br /> If you have any questions or comments, I can be reached at(510) 842-8658. <br /> Sincerely, <br /> Clint B. Rogers <br /> Engineer, Site Assessment and Remediation <br /> Attachment <br /> cc: Elizabeth Thayer, Central Valley RWQCB, Sacramento, CA <br /> '`. Wilbur Smith II, Sims-Grupe Mgmt.,374 Lincoln Center, Stockton, CA 95207 <br /> Gerry Nakano, Kennedy-Jenks-Chilton,3030 2nd St., 10th Floor, San Francisco, CA 94107 <br />