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• • <br /> STATE OF CALIFORNIA PETE WILSON, G.,.,,o, <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> ,CENTRAL VALLEY REGION <br /> 3443 ROUTIER ROAD, SUITE A <br /> SACRAMENTO, CA 95827-3098 <br /> PHONE: (916) 361-5600 <br /> FAX: (916) 361-5686 <br /> � r<d�(C`.� <br /> � <br /> 15 May 1991 MAY 2 D 1991 <br /> ENVIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br /> Mr. Ken Smith, President <br /> Delta Truck Sales Inc. <br /> P. 0. Box 8068 <br /> Stockton, CA 95208 <br /> HYDROGEOLOGICAL ASSESSMENT REPORT REVIEW, DELTA TRUCK SALES, INC. , SAN JOAQUIN <br /> COUNTY <br /> Enclosed are our staff comments on the completion of your facility's <br /> Hydrogeological Assessment Report (HAR) . Confirmation sampling of the <br /> existing monitoring wells is needed. The lateral extent of the ash layers and <br /> oily waste in the old landfill or burn dump needs to be defined. To avoid <br /> unnecessary excavation of concrete rubble and construction debris, a work plan <br /> for the proposed soil borings or side wall excavation should be submitted to <br /> this office prior to commencement of field activities. <br /> A Cleanup and Abatement Order was issued on 29 April 1991 . The Order requires <br /> completion of the HAR by 1 September 1991 and closure of the surface <br /> impoundment and landfilled area by 1 September 1992. The information supplied <br /> by the addendum to the HAR will characterize the extent of contaminated <br /> material . A Closure plan can then be developed and implemented. <br /> If you have any questions or would like to meet on the subject please contact <br /> me at (916) 361-5738. <br /> )a/y� E. &Q�Zk <br /> JAMES E. BRATHOVDE <br /> Associate Engineering Geologist <br /> JEB <br /> Attachment <br /> cc: Mr. Ron Valinoti , San Joaquin County Public Health, Stockton% <br /> Ms. Mary Raygoza, Delta Truck Sales Inc. , Stockton <br />