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0 0 <br /> ,i Department of Toxic Substances Control <br /> r Jesse R. Huff, Director , <br /> 10151 Croydon Way, Suite 3 <br /> Sacramento, California 95827-2106 <br /> Pete Wilson Peter M. Rooney <br /> Governor Secretary for <br /> Environmental <br /> Protection <br /> September 18, 1998 <br /> Commander <br /> ASCE-BE (Mr. Marshall Cloud) <br /> Activity Services Center West, <br /> Defense Depot San Joaquin, Tracy Site <br /> Building 5-108, Sharpe Location <br /> Post Office Box 960001 <br /> Stockton, California 95296-0250 <br /> DRAFT REMEDIAL DESIGN WORK PLAN FOR DEFENSE DEPOT SAN JOAQUIN <br /> (DDJC), TRACY SITE <br /> Dear Mr. Cloud: <br /> The Department of Toxic Substances Control (DTSC) has completed their review of the <br /> above mentioned document dated July 1998. The Central Valley Regional Water Quality Control <br /> Board will submit their comments under separate cover and will do so for all future submittals. <br /> The Remedial Design Workplan is designed to detail and/or describe the requirements of <br /> the design data collection effort and to provide an overall approach to remedial design, action and <br /> ultimately close out at 14 Solid Waste Management Unit (SWMUs) with soil contamination <br /> requiring remedial action. The selected remedies include soil vapor extraction, excavation, and <br /> institutional controls. Operable Unit 1, the contaminated groundwater plume, is being remediated <br /> through groundwater extraction, treatment and re-injection. It is anticipated that all remediation <br /> will be underway or completed by the year 2000. <br /> HM dg <br /> HMlly M <br /> Calilornia Environmental Protection Agency <br /> ® Primed on Recycled Paper <br />