Laserfiche WebLink
VI. HAZARDOU WASTE ACTIVITY DESCRIPTION: <br /> The plating operation generates the majority of manifested <br /> waste at this site. To a lesser extent, hazardous waste is <br /> generated by vehicle and machine maintenance, bumper and <br /> parts painting and facility maintenance and repair. <br /> The plating operation generates a liquid waste stream which <br /> flows to the on site pretreatment system. The waste stream <br /> consists of rinse water, drag out, and cleaners. The waste <br /> streams I are individually piped from the production <br /> departmeis directly to the pretreatment area. Two of the <br /> three wa:te streams, cyanide and chromium drag out, are piped <br /> through separate four inch line into a cyanide sump and a <br /> chromium acid sump. The cleaners and the heavy metals, <br /> copper a d nickel, are piped through a six inch line into a <br /> heavy me al sump. This is the beginning of the pretreatment <br /> process. The wastes are recycled into usable products or <br /> converte to a sludge which is pressed to form a filter cake. <br /> The wast water is treated and disposed of to the sanitary <br /> sewer sy tem and the filter cake is manifested off site as <br /> hazardou waste to a permitted recycling facility or <br /> permitte disposal site. <br /> Waste oil, paint/solvent waste, and various contaminated <br /> debris (wood, used tanks, tank liners, etc. ) make up the <br /> majority ) of the secondary waste generated at Stockton <br /> Plating. Waste oil is generated via the air compressors and <br /> vehicle �epair. The urethane bumper painting operation <br /> generates a small volume of paint/solvent waste. Facility <br /> cleaning and renovation generates assorted contaminated <br /> debris. (Total tonnage for 1990 and 1991 was 68 and 31 tons <br /> (respectively) of hazardous waste generated. <br /> The sand blast/sand and grinding room floor sweep was treated <br /> as solidlwaste at the time of the inspection. No analysis <br /> has been performed to determine if these wastes exhibit any <br /> hazardous characteristics. This was noted as a violation of <br /> Title 22 , California Code of Regulations, Section 66261. 124 . <br /> VII. VIOLATIO S• <br /> 1. Haza dous waste was being treated without a permit issued <br /> by t e Department of Toxic Substances Control. <br /> 2 . Hazardous waste is accumulated in a 55 gallon drum not at <br /> the point of generation and not under the direct control <br /> of to operator of the process generating the waste. <br /> 3 . Hazardous waste containers used at point of waste <br /> generation were not properly labeled. <br /> 3 <br />