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Aug 09 . 2007 13: 10 LUSTRE-CAL NAMEPLATE CORP 2093701690 p. 3 Environmental Standard Procedure Page 2 Frost Tank (pH < 2) - Etch Room East Wall Floor Drain Etch Rinse (pH > 12)- Etch Room East Wall Floor Drain Etch Tank (pH > 12) - Etch Room East Wall Floor Drain 3.2. Disposal Procedures 3.2.1. Developer - the film developing solution is automatically discharged into the On- Site treatment system from the AGFA film processor located within the Darkroom via a drain located within in south wall. The amount of discharge is directly related to the number of films processed, therefore, the person responsible for monitoring the make-up tank must record the amount discharged based upon how much they have added to the °Developer" make-up tank. Record all necessary information on the Waste Water Treatment Log whenever making an addition to the Developer Make-up Tank. 3.2.2. Fixer - the film fixing solution is automatically discharged from the AGFA film processor into a collection container. The waste fixing solution is then poured into the Silver Recovery system tank. The Silver Recovery system is turned on and allowed to run at least overnight. The following day the person responsible will test the solution for dissolved silver by using a test strip indicator. That person will then make an entry into the Silver Recovery Log and then either initiate additional silver recovery if any silver is still present or discharge the waste fix solution into the sink located on the west wall of the Darkroom if all silver has been removed from the solution. The amount of waste fixing solution discharged and all additional necessary information must then be recorded on the Waste Water Treatment Log. 3.2.3. Acid Purification Unit (APU) - waste anodizing solution is automatically discharged into the U1 T3 pH adjust tank via the APU located in the outside tank pad area. The APU is utilized only as needed to maintain a dissolved Aluminum concentration of - 12 ppm within the anodizing tank. If the anodizing operator determines that the APU needs to be turned on in order to maintain that concentration, they will record how many cycles the APU processed that day. Each cycle discharges -- 4 gallons of waste anodizing solution. Multiply the number of cycles that day by 4 to estimate the total amount discharged and record that estimate along with all additional necessary on the Waste Water Treatment Log. 3.2.4. Frost Tank - waste frost solution (ammonium bifluoride) is manually discharged into the U1 T1 collection tank via a floor drain located near the south east corner of the Etch room. When it has been determined that the Frost solution is exhausted a drain valve is partially opened draining the solution slowly into the On-Site treatment system for eventual pH adjustment. The tank is then washed and drained again with approximately 5 gallons of additional water. This results in a total discharge of -- 75 gallons each time the tank is changed. The operator responsible for discharging the frost solution must take care to routinely monitor the T5 pH controller outside to verify that the final pH discharge is between 6-10 and then record the estimate discharge along with all additional necessary on the Waste Water Treatment Log. 3.2.5. Etch Rinse - the etch rinse tank is manually discharged daily into the U1 T1 U collection tank via a floor drain located near the south east corner of the Etch room. At the end of the day the drain valve is partially opened draining the solution slowly into the On-Site treatment system for eventual pH adjustment. The tank is then washed and drained again with approximately 5 gallons of additional water. This