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Chevron <br /> Chevron U.S.A.Produeft Company <br /> 6001 Bollinger Canyon Road <br /> Building L <br /> San Ramon,CA 94583 <br /> P0.Box 5004 <br /> October 11, 1995 San Ramon,CA 94583-0804 <br /> Marketing-Northwest Region <br /> Phone 510 842 9500 <br /> Mary Meays <br /> Sart Joaquin County Public Health Services <br /> P. O.Box 388 <br /> Stockton,CA 95201-0388 <br /> Re: Former Signal Oil#221-5,5431 Grantline Road,Banta CA <br /> Attached Groundwater Monitoring Report(Blaine Tech, 6/19/95) <br /> Dear Ms.Meays: <br /> Attached you will find a report dated June 19, 1995,which was prepared by Chevron's consultant,Blaine <br /> Tech Services,Inc. (Blaine Tech),to describe the results of groundwater monitoring which was performed <br /> at the subject site on May 26, 1995. <br /> In May,Blaine Tech gauged and sampled all three site-related wells.The measured direction of <br /> groundwater flow was toward the north. Groundwater samples from all three wells were analyzed for the <br /> presence of TPHGas and BTEX constituents.There were no dissolved petroleum hydrocarbons detected <br /> above reporting limits.These results were consistent with those measured during previous site monitoring <br /> events. <br /> If you have any questions or comments,you may contact me at(510) 842-8695. <br /> Sincerely, <br /> " e. g",i— <br /> Brett L.Hunter <br /> Environmental Engineer <br /> Site Assessment and Remediation <br /> attachment <br /> cc: Gordon Boggs,Central Valley Regional Water Quality Control Board,Sacramento,CA <br /> Susan Burns,318 McHenry Ave.,Modesto,CA 95354 <br /> Bette Owen,Chevron USA,Products Company,San Ramon,CA (w/o attachment) <br />