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VE OF CALIFORNIA—HEALTH AND WELFARE AGENCY GEORGE DEUKMEJIAN, Gomr r <br /> DEPARTMENT OF HEALTH SERVICES <br /> TOXIC SUBSTANCES CONTROL DIVISION <br /> NORTHERN CALIFORNIA SECTION go <br /> 4250 POWER INN ROAD <br /> SACRAMENTO,CA 95826 <br /> (916)739-3145 <br /> October 14, 1987 <br /> ' i <br /> Mr. Jack Haines <br /> Environmental Engineer _ :,FAITH <br /> Defense Logistics Agency VICES <br /> Defense Depot Tracy <br /> Tracy, CA 95376 <br /> Dear Mr. Haines: <br /> CLOSURE PLAN COMPLETENESS DETERMINATION LETTER: UNDERGROUND <br /> WASTE STORAGE TANKS (BLDG. 247, WAREHOUSE 28) , DEFENSE DEPOT <br /> TRACY EPA I.D. NO CA491520834 <br /> The Department of Health Services (DHS) , Toxic Substances Control <br /> Division and the Environmental Protection Agency - Region IX, <br /> have completed their review of the Closure Plan for two <br /> underground storage tanks. One tank is located at Building 247 <br /> and the other tank is located at Warehouse 28 . The initial <br /> review of the Closure Plan resulted in the issuance by DHS of a <br /> Notice of Deficiency, dated April 23, 1987. DHS has also been in <br /> telephone contact with DDTC concerning modifications to the <br /> Closure Plan. In response to the Notice of Deficiency and <br /> telephone conversations, DDTC submitted a revised Closure Plan <br /> dated May 20, 1987 . <br /> DHS has determined that the tank at Building 247 must close under <br /> both RCRA regulations (40 CFR Part 264) and DHS regulations <br /> (Title 22 , California Administrative Code (CAC). DDTC has, in a <br /> leiter dated July 2 , 1987, i forred rHS that the second tank, <br /> which is located at Warehouse 28, was emptied, rinsed and filled <br /> with sand prior to November, 1979 . At this time DDTC wishes to <br /> remove the tank from the ground and dispose of it. Because this <br /> tank was removed from service prior to November 19, 1980, it is <br /> not subject to RCRA regulations. However, this tank will be <br /> closed under CAC Title 22 . <br /> The regulatory agencies have determined that the Closure Plan has <br /> adequately addressed all of the issues needed to insure the <br /> proper closure of this unit. The Closure Plan calls for removal <br /> of the tanks, all hazardous waste, and all hazardous waste <br /> residues that might have escaped from the units to the adjacent <br /> or underlying soil. This closure Plan takes into account all of <br /> the regulatory and technical requirement needed to insure <br /> protection of human health and the environment during and after <br /> the closure activities. <br />