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Mr. Eric Jenks <br /> • _ 3 _ 17 May 2012 <br /> investigations will be used to plan future investigations to define the downgradient <br /> extent of Site-related chemicals of concern. <br /> Central Valley Water Board staff concurs with the conclusion that the extent of 1,2-DCP <br /> and 1 ,2,3-TCP east of South Stockton Street and deeper than depths investigated <br /> during the Phase II Investigation have not yet been evaluated and thus, the Central <br /> Valley Water Board staff concurs with the work proposed in the Work Plan. By 12 <br /> October 2012, please submit the results of the investigations in a site assessment <br /> report. Provide at least one-week notice of field activities to allow Central Valley Water <br /> Board staff to observe. <br /> If you have questions or comments, please contact Siddharth Sewalia at 916-464-4658, <br /> or by E-mail at ssewalia(a-)waterboards.ca.gov <br /> Siddharth Sewalia <br /> Water Resource Control Engineer <br /> Private Sites Cleanup Unit <br /> cc: Ms. Melissa Asher, Geosyntec Consultants, Oakland <br /> Ms. Lori Duncan, San Joaquin County Environmental Health Department, <br /> Stockton <br /> KARL E. LONGLEY SCD, P.E., CHAIR PAMELA C. CREEDON P.E., BCEE,EXECUTIVE OFFICER <br /> 11020 Sun Center Drive#200,Rancho Cordova,CA 95670 1 w` w.`materboards.ca.gov/centralvaliey <br /> L,p REL;YCLED PAPER <br />