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• The hand-spraying process is divided into two areas that generate the <br /> same waste stream. One is contained in an enclosed building with <br /> three, 6 foot by 6 foot cabinet type exhaust/filter units to capture <br /> overspray and particulate matter as well as providing sufficient airflow <br /> for operator safety. The second system is contained in a partially <br /> enclosed building with a filter/exhaust fan to provide uniform air flow <br /> in all parts of the paint room. <br /> The water-based paint waste streams are composed of the dried pigments <br /> and solids of the paint. When the water evaporates, the constituent <br /> chemicals are left from each stream and have been determined to be <br /> hazardous waste. Analytical reports show zinc, chromium, barium, and <br /> other trace elements are present. These hazardous waste streams are <br /> considered routinely generated from on-going processes. All hazardous <br /> waste from the surface coating processes at Star Buildings is transported in <br /> one (1) cubic yard containers by North State Environmental. The dried <br /> paint waste is transported to Filter Recycling Services in Rialto, CA. Filter <br /> Recycling mixes the waste with other solids that are used in road base, and <br /> or fill. <br /> (5) CWC Code#252—Paint Filters <br /> (a) Estimate of the weight, in pounds, of waste generated at the site per year: <br /> 900 pounds per year. <br /> (b) CWC Code: #252 <br /> (c) Processes, operations, and activities generating the waste, with <br /> corresponding block diagram: See Appendix A. <br /> The spray process generates Star Buildings hazardous paint filter waste: <br /> Steel beams are spray painted using a Graco HVLP spray system within an <br /> enclosed building. The buildings are equipped with multiple fans, and <br /> filter bank plenums. These filters are periodically changed and stored in <br /> DOT approved 55-gallon fiber drums for disposal. <br /> Dried paint filter waste is generated in this process, and stored for <br /> transport by North State Environmental. The dried paint waste is <br /> transported to Filter Recycling Services in Rialto, CA. Filter Recycling <br /> mixes the waste with other solids that are used in road base, and or fill. <br /> (6) CWC Code#213 — Solvent <br /> (a) Estimate of the weight, in pounds, of waste generated at the site per year: 214.4 pounds <br /> per year. <br /> 8 <br />