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Section 1: Background Premier Finishing (Premier) has obtained a Permit By Rule [Title 22 California Code of Regulations (CCR), Division 4.5, Chapter 45, Article 1] for the on-site treatment of aqueous waste containing metals. Chromate conversion coatings are performed on metal products where the metal surface is converted into a desired coating through a chemical process. The conversion coating is performed to prevent corrosion and/or to create effective adhesion properties for other subsequent coatings, such as powder coating. The metal products are dipped into one or more chemical immersion baths, depending on the metal properties and desired coating finish and rinsed in a water bath after each chemical dip. This process is accomplished on-site via the plating line which consists of sixteen tanks, eight of which are rinse water tanks (B, 2, 4, 6, 8, 9, 11 and 13). Two of the eight rinse water tanks are emptied daily (Monday — Thursday), this rinse water from the plating line process rinse tanks are drained and pumped to a 750-gallon treatment tank to remove the heavy metals. [Attachment A — Plating Line Schematic and Points of Generation] A flocculent is added to the treatment tank to precipitate the heavy metals from the water. The precipitate is then pumped into a filter press to remove excess water. The separated non-hazardous wastewater is cycled through the onsite wastewater treatment facility and sampled before being discharged from the facility to the City sewer. [Attachment B—Wastewater Discharge Permit] Wastewater generated from tanks A, 1, 3, 5, 12 and 14 are not pumped to the 750-gallon treatment tank, the wastewater from these tanks are all considered special discharges. When necessary, we use Clean and Clear to drop out heavy metal. They are tested prior to discharging the wastewater to the sewer. Sludge fi•om the process is ran through our filter press. The sludge is then put in a hazardous waste drum and hauled off site. In case of a spill there is a containment wall around all tank lines and the wastewater is contained inside the area. Premier has a sump pump with a discharge line attached and the wastewater would be pumped into one of the three holding tanks. Once the wastewater is in the holding tank it is tested. The appropriate treatment received, then with permission from the City of Stockton Water Department we could release into Sewer 1. The tests we run are: cam 17,semi volatile organic compounds by EPA method 625,cyanide(total) by EPA 335.4, total volatile dissolved solids by EPA SM2540E, total dissolved solids by EPA SM2540C,ph water by EPA SM4500h, total non-polar material by EPA 1664A (SGT-HEM), oil and grease by EPA 1664A (HEM), organochlorine pesticides and PCB's by EPA 608,and volatile organic compounds by EPA 624. Premier Finishing lPasle Analysis Plan i