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HAZARDOUS WASTE MANAGEMENT PERFORMANCE REPORT <br /> SITE NAME <br /> Applied Aerospace Structures Corp . <br /> 3437 S . Airport Way <br /> P . O . Box 6189 <br /> Stockton, CA 95206 <br /> San Joaquin County <br /> SIC CODE <br /> 3728 <br /> QUANTITY OF WASTE <br /> See Figure 9 <br /> HAZARDOUS WASTE MANAGEMENT APPROACHES <br /> Wastewater treatment <br /> Overspray occurs when rinsing parts coming out of the rinse tanks . In an effort to <br /> prevent overspray, a wall with rain gutters was installed to capture the overspray . This <br /> minimizes the amount of overspray accumulating on the pit floor thus reducing the <br /> amount being sent to the chromium treatment unit . Low flow nozzles on hoses used to <br /> rinse parts in the conversion coating areas also continue to be used . Hazardous Waste <br /> Management training was also conducted to inform employees about minimizing <br /> discharges to the sumps and process rinse waters . <br /> Graphite pre-preg <br /> The current hazardous waste management approach is off- site disposal . When projects <br /> require the use of large amounts of graphite pre-preg, analyses will be performed to <br /> determine if the material is a hazardous waste . If the material is non-hazardous , it will <br /> reduce the amount needing disposal . Use of the plycutter to minimize waste will <br /> continue . Hazardous Waste Management training will continue on an annual basis . <br /> Phosphoric acid solution <br /> The current hazardous waste management approach is off-site treatment and disposal . <br /> This is a waste stream that occurs periodically when the acid becomes spent . Frequency <br /> of disposal was usually greater than every 4 years , however, the installation of the wall <br /> and rain gutters to capture overspray, has reduced the amount of overspray requiring <br /> wastewater treatment but has increased the amount requiring disposal . Hazardous Waste <br /> Management training will continue on an annual basis . No other source reduction <br /> measures were implemented . <br /> I <br />