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IV. BACKGROUND: In June, 1989, Public Health Services-Environmental Health Services (PHS-EHD) placed the LOF Plant #10 on its Hazardous Waste Generator Program inventory. According to information received from the State Department of Health Services, 133.7 tons of hazardous waste was generated by LOF Plant #10 in 1987. V. GENERAL DESCRIPTION OF FACILITY: LOF Plant #10 is located east of Interstate 5 on the south side of East Louise Avenue in Lathrop. Float glass is manufactured for the architectural and automotive markets. VI. HAZARDOUS WASTE ACTIVITY DESCRIPTION: Three types of hazardous wastes are generated at LOF Plant #10. The first category is chromium III oxide which converts to chrome VI from heating and oxidation of glass in the glass melting furnace. The second category consists of lead oxide materials (for the black bands on windshields) along with zinc, manganese, chromium and nickel. The third group is liquid oil and oil mixed with absorbent under the plant machines. The facility generated approximately 240 tons of hazardous waste in 1992. The projection for 1993 is in the 600-1,000 ton range if the bricks are removed in 1993 from the furnace. VII. VIOLATION: 1. The initial date of hazardous waste accumulation, the composition and physical state of the wastes, and the identity of the generator were not clearly marked on hazardous waste labels on three full containers of waste oil stored in LOF's hazardous waste storage area. VIII. OBSERVATIONS: I arrived at LOF at approximately 1000 hours. I identified myself and met with Jon Weiss, Environmental Coordinator. I explained the nature of the inspection and requested permission to inspect the facilities. Mr. Jon Weiss and I reviewed the contingency plan, waste analysis forms, training records, receipts and hazardous waste manifests. 2