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PCP Decontamination r - Building 707 <br /> Estimated Closure Date: Year 2040 based on useful life of 45 years. <br /> This is a decontamination area, no storage is done in this location. <br /> CLOSURE SCHEDULE <br /> Humber of Days Prior to Completion <br /> Task of Closure LTask to be Completed) <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 U <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 TSU 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 /> 4. Either treat contaminated material onsite or sent 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 /> 3 <br />