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B816C <br /> Waste Oil DOT Drums 50 G <br /> Waste Antifreeze DOT Drums 50 G <br /> CLOSURE SCEEDULE <br /> Number of Days Prior to Completion <br /> Task of Closure (Task to be ComDleted) <br /> Stop receiving wastes 300 <br /> Notify DOHS 180 <br /> Remove wastes 120 <br /> Disassemble or demolish collection facility 90 <br /> Decontaminate facility 10 <br /> Final inspection and certification 0 <br /> Post Closure Maintenance if required <br /> CLOSURE STEPS <br /> 1 . Stop receiving wastes . <br /> 2. Notify DOHS of proposed action. <br /> 3. Contact DRMO to have wastes received at licensed TSD facility. <br /> 4. Steam clean floors , exterior concrete slabs , curbs and sumps. Collect , <br /> analyze and dispose of rinse water in accordance with current environmental <br /> regulations. <br /> 5. Inspect all surfaces for residues and signs of deterioration. <br /> 6. Take surface samples in areas of residues , cracks or other deterioration. <br /> 7. Take a concrete core sample in each pit. <br /> 8. . Take additional core samples if indicated by previous sampling. Conduct <br /> all sampling and analysis in accordance with Article 11 , Title 22 , California <br /> Administrative code. <br /> 9. Either treat contaminated material onsite or send to offsite disposal at <br /> licensed TSDF. <br /> 10. Backfill excavations to grade with engineered fill material . <br /> 11 . The Commanding Officer and an independent California registered Civil <br /> Engineer will certify that work has been completed in accordance with the <br /> closure plan. DOHS to give final approval of the closure. <br /> 2 <br /> xis _,_usavuZen�l _rta__ 1V <br />