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California Regional Water Quality Control Board <br /> Central Valley Region <br /> Re <br /> `•r:,�„�AL7ft ,:� <br /> Winston H.Hickox Sacramento Main Office 03 OCj Gray Davis <br /> Secretaryfor Internet Address: http://www.swrcb.ca.gov/--rwgcb5 23 AM! ct Governor <br /> Environmental 3443 Routier Road,Suite A,Sacramento,California 95827-3003 JJ <br /> Protection Phone(916)255-3000•FAX(916)255-3015 <br /> 20 October 2003 <br /> Captain Kenneth Koop <br /> California Army National Guard <br /> 9800 Goethe Road <br /> Sacramento, CA 95826-9101 <br /> WORK PLAN FOR PRELIMINARYASSESSMENT/SITE INVESTIGATION UPDATE, <br /> CALIFORNIA ARMYNATIONAL GUARD FACILITY, STOCKTON, CALIFORNIA <br /> Thank you for the opportunity to review the revised Work Plan for Preliminary Assessment/Site <br /> Investigation Update(revised Work Plan) at the California Army National Guard Facility in Stockton, <br /> California received on 5 September 2003. Regional Water Quality Control Board (Regional Board) <br /> comments on the revised Work Plan are provided below. These comments should be addressed <br /> before implementing the revised Work Plan. <br /> General Comments <br /> 1. In our 7 August 2000 and 12 September 2002 comment letters, the Regional Board requested <br /> further investigation of the area that may contain buried tear-gas canisters. The Executive <br /> Summary of the revised Preliminary Assessment/Site Investigation Report (received on 5 <br /> September 2003) recommends preparation of a work plan to investigate and remove the buried <br /> tear-gas canisters. However, the revised Work Plan does not include investigation of this area. <br /> CARNG needs to provide a schedule for development and implementation of a work plan to <br /> investigate/remove the potential buried tear-gas canisters. Please provide this schedule to the <br /> Regional Board and the San Joaquin County Environmental Health Department by 7 November <br /> 2003. <br /> Specific Comments <br /> 1. Page 7, Section 3.3.1,'CSMS: Add metals to the proposed target analytes for the waste storage <br /> area. <br /> 2. Figure 4: This figure is missing information necessary to implement the revised Work Plan. Add <br /> the following information: <br /> • Proposed soil sample locations in the drainage ditch <br /> • Former sand-blasting area and proposed sample location <br /> • Waste storage area and proposed sample location <br /> California Environmental Protection Agency <br /> 01 Recycled Paper <br />