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s June 6, 1986 Bill Greenspan Page 2 2) PRIORITY RECOMMENDATIONS (Phase I) The liquid chemicals in the tanks, drums, bottles, carboys and contaminated empties should be removed and disposed of as soon as possible. They are a serious hazard and liability. In order to do this quickly, and meet government rules on fencing and securing hazardous waste sites, temporary interior bracing should be installed to prevent collapse of the walls during phase I and II. This phase will remove most of the potential liability. 3) CLEANUP OF CONTAMINATED FIRE DEBRIS AND SURFACE DE- CONTAMINATION OF CONCRETE AND EQUIPMENT (Phase II) Contaminated debris and spilled chemicals should be removed and loaded into a licensed end-dump hazardous waste trailer. Certain wrecked pieces of equipment are not worth de- contaminating and should be crushed or cut up to reduce volume and loaded into the trailer. Lightly contaminated, valuable, or large pieces of equipment uneconomic to dump will be decontaminated ready for sale, scrapping or disposal in a municipal landfill. Concrete surfaces should be scraped and then decontaminat- ed with minimal volumes of a neutralizing and decontaminat- ing solution. After drying with absorbents this can also be loaded in the trailer. Such trailers are the most efficient and cost-effective removal option for such large volumes of solid hazardous waste. 4) CLEANUP OF CONTAMINATED SOIL (Phase III) During our site assessment sampling work we found obvious contamination under the concrete slab to a depth of at least one foot in the vicinity of the cracks in the slab. The horizontal and vertical extent of copper (or other heavy metal) contamination is not yet established, but there will have to be removal of some cubic yards of soil at the least from below the slab. We have as yet developed no data on soil outside the structure. It may be possible to avoid dumping most of the concrete in the burned area as hazardous waste if it can be de- contaminated. The extent of soil removal required inside and outside the structure is yet to be determined as part of our site preliminary assessment contract, already awarded.