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BF Project No. 09-6532 o The upstairs west bedroom walls, ceilings, and floor (following the removal of the carpeting materials) shall be triple rinse surface washed using a non-phosphate based cleaner and encapsulated with an oil based paint or similar product. House-Septic Waste Water System: o The septic waste water system shall be properly emptied and decontaminated. Additionally, further sampling within the area of the leach field would be required. Surface washing shall consist of a triple rinse surface washing with a non-phosphate based cleaner. These surfaces shall then be encapsulated with an oil-based paint, varnish, or similar sealant. Water- based latex paints appear to have a greater tendency to permit"bleed through"than oil-based coatings. The sealant is to be applied after surface washing has been completed. After the sealant has cured in accordance with the manufacturer's instruction, sampling and analysis must be conducted to assure that any remaining contamination is below the State of California criteria. The objective is to reduce contaminants to below the State of California criteria by an efficient and cost-effective method that generates a minimal waste stream. Note that all wash solutions and rinse must be effectively collected for proper disposal. Confirmation methamphetamine samples will be required on areas that are washed. Waste Disposal All materials removed from a Clan Lab property as a result of having been impacted/contaminated by Clan Lab activities (operation, storage, spills and disposal) must be properly disposed. In general, those items cleaned first (e.g., washed with Simple Green or similar and triple-rinsed) have historically been disposed at a Class III landfill. Always contact the landfill to check the current status for acceptance of these materials. For information on landfills, see a list provided by the Regional Water Quality Control Board. For any disposed items, SJCEHD will require a detailed inventory, as well as a waste disposal receipt (manifest), to be submitted with the final clearance report. For items that are required to be disposed as hazardous waste,a copy of the Uniform Hazardous Waste Manifest is required. SJCEHD does not regulate the types of wastes accepted by any landfill; each facility has its own permit requirements, and will likely review Clan lab debris on a case by case basis. It is up to the contractor to contact the landfill to determine if a specific material removed from a Clan Lab property will be accepted, and conditions under which it will be accepted. Post-Remediation Assessment The purpose of the Post-Remediation Assessment is to establish that the property has been remediated up to the point at which residual contamination is below the State of California re-occupancy criteria. The assessment should be conducted by the consultant after remediation has been completed and/or the encapsulate has cured. Sampling protocols for the post-remediation assessment will have been defined in the approved work plan. In general, those areas of the property for which the PSA-WP sampling showed levels above the State of California re-occupancy criteria and were not removed and replaced (e.g., were cleaned, or cleaned and encapsulated) are to sampled in the same manner proposed for the PSA-WP. If all sample results fall below the State of California re-occupancy criteria, the remediation work is completed and the Consultant can prepare the final report. Any areas that fail the post-remediation sampling are to be re-cleaned,re-encapsulated and then re-sampled,or removed. P.O. Box 4816, Modesto, CA 95352-4816 • Facsimile 209-847-3830 Modesto 209577-1887 a Oakdale 209-847-3800•FWsno 559-264-3800•Sacramento 916-564-3835 8