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STATE OF CALIFORNIA—CALIFORNIA ENVIRONMENTAL PROTECTION AGENCY <br />DEPARTMENT OF TOXIC SUBSTANCES CONTROL "l <br />REGION 1 <br />10151 CROYDON WAY, SUITE 3 �' +�+ <br />SACRAMENTO, CA 95827-2106 <br />(916) 255-3545 <br />July 2, 1996 <br />Mr. Robert Doss, P.E. <br />Project Manager <br />Pacific Gas & Electric Company <br />Environmental Services <br />77 Beale Street, Room F-1636 <br />San Francisco, California 94106 <br />PETE WILSON, Governor <br />PROPOSED FEASIBILITY STUDY APPROACH AND SCHEDULE, PACIFIC GAS & <br />ELECTRIC COMPANY, STOCKTON <br />Dear Mr. Doss: <br />The Department of Toxic Substances Control (DTSC) has <br />received your June 6, 1996 letter which summarizes results of our <br />meeting on May 22, 1996. Your letter documents your proposed <br />approach for completing the Feasibility Study (FS). Also, <br />presented in your letter is a proposed schedule for completing <br />the Remedial Action Plan. In general the DTSC is in agreement <br />with the proposals presented in your letter, nevertheless this <br />response letter will also serve to clarify a few issues. <br />One of the primary topics discussed in our meeting concerned <br />the establishment of remedial action objectives and goals for <br />soil and groundwater. Your letter states that specific <br />groundwater objectives and goals were not agreed to at the <br />meeting, when in fact the objectives and goals were clearly <br />stated by the DTSC and Regional Water Quality Control Board <br />(RWQCB). As discussed, the objective is to protect beneficial <br />uses of groundwater and the goal is to cleanup to background or <br />non -detection concentrations where economically and technically <br />T2asi.✓TTh <br />.L T.L objective anu goal wouiu serve as a 5taT ting <br />point in the evaluation of alternatives in the Feasibility Study. <br />In addition, it was agreed that a range of cleanup levels would <br />also be evaluated in the feasibility study. Your letter <br />accurately summarizes the range of levels to be evaluated. <br />The above objective and goal remains consistent with the <br />DTSC position presented to you per letter dated April 26, 1993 <br />issued in response to the Remedial Investigation Report. Again, <br />"one of the primary goals of the characterization work is to <br />define the nature and extent of the contaminants of concern <br />sufficiently to evaluate remedial action alternatives, including <br />alternatives for a permanent remedial solution. To seek a <br />permanent remedial solution as required by the National <br />FA.cg <br />FA17W.066\1 <br />es <br />t 1W* <br />Primed On Recycled Pape, <br />