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June 6 ,1990 Wednesday Day # 3 Demo Continue the demolition work Starting to haul off the debris from the building 25% of the building remains standing Begin to brake up portion of the building slab Fire PIV's Dave christen removed the locks from three PIVs and the yoke vale at the base of the water tower The water tower and the PIVs feed the fire sprinkler system the previously fed the maintenance shop Removal of the lock will accommodate the quick shut off in the event of a pipe being broken during the demolition or excavation work ' Cell Liner The plastic liner material from Griffolyn Products was delivered to AM&M receiving department AM&M personal moved the liner material to a location nearer the cell Chem Toilet The chemical toilet previously place near the cell was missing I located the toilet on the North side of building 40 I asked Dave Christen to move the toilet back He complied SAC H&S Plan Called Dan Erwin We discussed the general safety action limits of the general air quality The H&S plan was bias toward the well drilling operation My question was could this data be directly used during the excavation. On a return call Dan said that the plan would be OK for all workers The general air should be >50 ppm within 50 feet of the excavation work OK to substitute 3M respirators and cartridge if I was not fit tested for MSA equipment Would have to use two cartridge on 3M one for organic the other a HEPA 3M did not make a combination cartridge like MSA ' Safety Supplier Located a safety supply house in Stockton Delta Safety Had SFO fax credit info to me and Delta Safety The had 3M respirators, boots, and safety glasses Septic Tank Septic tank was removed and destroyed and hauled off by Don Lawley's crew Very strong diesel odor in the ground around the septic tank location effluent line made of ABS and embedded in drain rock This line was newer in materials and was added more recently than the tank installation ell