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` Chevron � C <br />+ Chevron U.S.A. Inc. ? 44r ` <br /> 2410 Camino Ramon, San Ramon, California • Phone (415) 842-9500 �+ to 9 .d <br /> wo Mail Address:P.O.Box 5004,San Ramon,CA 94583-0804 Q E C 7 1989 <br /> 1 1 AL HEALTH <br /> Marketing Operations December 1, 1989 PERNNT�SERVI.--�.- <br /> D. Moller <br /> Manager,Operations <br /> S. L. Patterson <br /> Area Manager,Operations <br /> C. G.Trimbach <br /> Manager,Engineering <br /> Edward W. James <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier <br /> Sacramento, CA 95827 <br /> Re: Chevron Service Station #9-4275 <br /> 2905 West Benjamin Holt Drive <br /> Stockton, California <br /> I <br /> Dear Mr. James: <br /> Enclosed we are forwarding the quarterly groundwater sampling results conducted <br /> i and September .1989 by our consultant Western Geologic Resources, Inc. <br /> WGR) at the referenced site. j <br /> -— <br /> WGR is currently combining our_groundwater_con aminat�on.and--contour data. with <br /> (ARCO's-, ARCO, located :across Benjamin .Holt Drive, has also placed numerous <br /> groundwater monitoring wellsd i <br /> ans currently operating a remediation system below <br /> their site. Once—this_data:n asseri t 1&demand—evaluated;W_G.R will develo.p� <br /> recommendations-on-appropriate-next_actrons� <br /> Chevron will continue quarterly sampling at this site. <br /> If you have any questions please feel free to call John Randall at (415) 842-9625. <br /> Very truly yours, <br /> C.G. Trimbach <br /> i <br /> By <br /> I <br /> I <br /> Jo Randall, Engineers <br /> JMR:vas:Q5-019 <br /> i <br /> Enclosure <br /> i <br /> cc: Diane Hinsen <br /> San Joaquin Local Health District <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> I <br />