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I f Section 1: Background Premier Finishing (Premier) has obtained a Permit By Rule [Title 22 California Coda of Regulations(CCR),Division 4.5,Chapter 45,Article 1]for the on-site treatment of aqueous waste containing metals.Clu�omate conversion coatings are perfoaxned on metal products where the metal surface is converted into s 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, each as powder coating. The metal products are dipped into on¢ or more chemical _ immersion baths, depending on tho mala( properties and desired coating finish and rinsed in a water bath ager oath 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 th¢ plating line process rinse tanks are drained and pumped to a 750-gallon treatment tank to remove the heavy metals. [Attachment A — Plating Line Schematle 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 Som the facility to the City sewer•. [Attachmont B—Wastewater Discharge Permtt] Wastewater generated fiom tanks A,1,3,5, I2 and 14 are not pumped to the 750-gallon treatment tank,the wastewater from these tanks ane all considered spacial discharges. When necessary, we use Clean and Clear to drop out heavy metal. They are t¢ated prior to discharging the wastewater to the sewer. Sludgy fivm the process is ran through our filter press. The sludge is then put in a hazardous waste drum and hauled offsite. In case ofa spill there is a containment wail around all tank lines and the wastewater is contained inside the az�ea. Premier hes 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 I. Th¢tests we rvn 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 3M2540C,ph water by EPA SM4500h,total non-polar material by EPA 1664A(SC}T-HEM),oi3 and grease by SPA 1664A(HEM),organochlorine p¢sllcides and PCB's by SPA bOg,and volatile organic compounds by EPA 624. Rrmtm�P/nlaM,rg LNarle Ano/ysts Pion t