COMPLIANCE INFO_2020 (2) - Laserfiche WebLink

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1 . Input changes — None . This is a licensed process by our customer . 2 . Operational improvements — None . Acid becomes spent with use 3 . Production process changes — None . Overspray occurs when rinsing parts coming out of the tank . In an effort to prevent overspray from accumulating on the pit floor, a wall was built and placed on the south side of the cleaning center tanks so overspray returns back to the tank. However, this fills the unheated tank resulting in the frequent removal of solution . 4 . Product reformulation — N/A . 7 . Administrative steps — Employees receive periodic instruction to minimize the amount of water, yet still maintain product quality and customer part cleanliness requirements . Annual Hazardous Waste Management training is conducted to prevent the generation of hazardous waste . Sulfuric acid/sodium dichromate solution (FPL etch process) 1 . Input changes — None . Non-chromated processes are not currently available . A non-chromated process is available (Phosphoric Acid Deox — PAD) , however, it is not widely accepted by our current customers . This was reviewed in our initial SB 14 submission in 1990 . 2 . Operational improvements — One of our customers has tightened the limits on the copper concentration in the solution . This requires more frequent changeouts of the solution . If we perform a complete tank changeout due to the copper concentration, we have to make up another solution in a second tank and run qualifying tests (which take 1 week) to ensure the solution meets customer specifications before it can be used. To prevent that, on a monthly basis , we ' re removing enough solution and adding chemicals to keep the copper concentration below the customer ' s maximum allowable requirement. 3 . Production process changes — None . 4 . Product reformulation — N/A . 5 . Administrative steps — Annual Hazardous Waste Management training is conducted to prevent the generation of hazardous waste . Solvent contaminated debris 1 . Input changes — None . Use of wipes and solvent is required by customer specification. Parts must be cleaned prior to bonding, painting, etc . Customers have not found less hazardous solvents that clean as effectively as the current solvents . As we do more work with larger parts , the more surface area needs to be cleaned requiring more solvent wipes and the increased generation of solvent contaminated debris . 2 . Operational improvements — None . 3 . Production process changes — None 4 . Product reformulation — N/A . 5 . Administrative steps — Annual Hazardous Waste Management training is conducted to minimize and prevent the generation of hazardous waste . SELECTED SOURCE REDUCTION MEASURES i