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METAL FINISHING SOLUTIONS, INC. <br /> 2. HAZARDOUS WASTE GENERATION <br /> Metal Finishing Solutions, Inc. is in the metal finishing business. The company processes <br /> include cleaning, Conversion Coating and rinsing of metal parts provided by its customer. <br /> These steps require the use of hazardous materials such as Conversion Coating solutions <br /> and rinsewater. The waste materials generated in the processes are hazardous waste. <br /> The current list of hazardous wastes generated at the facility is provided in Exhibit 1 below. <br /> The two main areas in the plant are (1) Conversion Coating and (2)Waste Treatment. <br /> Customer parts are cleaned in alkaline cleaner solutions then the parts are Conversion <br /> Coated. The parts are transferred to successive tanks containing either the process solution <br /> or rinsewater. The wastes are spent processing solutions, relatively concentrated rinsewater <br /> and dilute rinsewater. <br /> The spent Conversion Coating solutions and concentrated rinsewater are treated in the <br /> company's onsite Waste Treatment System (WTS). The dilute rinsewater that contains <br /> metals is also recycled through the WTS. The dilute rinsewater that does not contain any <br /> metals is neutralized and discharged. <br /> Exhibit 1 <br /> Hazardous Wastes Generated Onsite <br /> No. Area Process/Waste Parameters to <br /> Analyze <br /> 1 Conversion Coating Area Spent process solutions: Chromium, Copper, <br /> • Acid Waste Nickel, Zinc, pH <br /> • Tanks#5 & 8 (depending on which <br /> solution is being <br /> analyzed) <br /> 2 Conversion Coating Area Rinse Waters <br /> • Caustic Waste- <br /> Tank#2 <br /> • Tanks#3,4,6,7,9 <br /> • Drag Out Rinse <br /> • Regeneration <br /> 3 Waste Treatment Discharge to POTW Arsenic, Cadmium, <br /> Chromium, Copper, <br /> Lead, Mercury, Nickel, <br /> Silver, Zinc, pH, TDS, <br /> O&G, SGT-HEM, <br /> Cyanide, Organics <br /> (Method EPA 608, 624 <br /> &625) <br /> 1325 EI Pinal Drive Stockton,CA 95205 Tel 408.802.4977 <br />