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iaCalifornia Regional Water Quality Control Board <br /> Central Valley Region <br /> Winston m Hlfa <br /> nolaraxryic�rzss"iomn ra�4Jss5- 5 <br /> exr <br /> 15 December 20M <br /> Mr. Michael Golden <br /> California Department of General Services <br /> Real Estate Services Division <br /> 1102 Q Street, Suite 4400 <br /> Sacramento, CA 95814 <br /> REVIEW JVORRPFdNFOR GROUNDWATER IM E.4TIGATION <br /> FORMER WNTAGECAR WASH, 60I EASTMINER A VENUE, STOCRTON <br /> f reviewed the 13 December 2000 Work Planjor Groundwater finesrigation (Workplm) submitted on <br /> your behalf by IT Corporation (11), for the subject site. <br /> IT proposes m complete four cone pea st (CPT) borings downgredieat of the site to delineate <br /> the lateral and vertical cztent of groundwater contamination, and determine where future groundwater <br /> monitoring wells nced or be installed. The four, duplicate CPT pairs Will be pushed to about IOo fret <br /> below ground surface to identify lithology. Depth-discrete groundwater samples Will then be collected <br /> from preferential flow path; that are identified. Theresultsofthiswodcwillbedoeu Wdivarepmt. <br /> Your Workplan is approved as written. Please cromat me 9last two business days prior to any site <br /> work. If you have any questions or comments, please call me at (916) 255-3115. <br /> 4 <br /> Marty Hmtsll <br /> Associate Engineering Geologist <br /> cc. W. Mike Infurrm, San Joaquin County Environmental Health Division, Stockton <br /> Mr. Tom Allan, IT Corporation, Sacamento <br /> California Emahmunental riolection Agenry <br /> d°jw�ervw <br />