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Section 1: Hazardous Waste Treatment System 1.1 Hazardous Waste Treatment System Premier Finishing (Premier) located at 7910 S. Longe Street, Stockton, CA is a coating and finishing company. Services provided on-site include powder coating, liquid coating, silk- screening,EMI-RFI shielding,pad-printing and light mechanical assembly. Chem film 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. Premier has obtained a Permit By Rule (PBR), in accordance with Title 22 California Code of Regulations (CCR), Division 4.5, Chapter 45, Article 1, for the on-site treatment of rinse water containing metals. Rinse water from the phosphate line, chem Iine and pressure washing station are pumped through stainless steel and PVC piping via a pneumatic pump and small diameter pump to a 750-gallon cylindrical stainless steel treatment tank to remove the heavy metals [Attachment A—Hazardous Waste Treatment System Diagram]. 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 filter cake is managed as a hazardous waste, and the separated non-hazardous wastewater is cycled through the on-site wastewater treatment facility before being sampled and [ discharged from the facility to the City sewer in accordance with the facility's wastewater discharge permit [Attachment B—Wastewater Discharge Permit]. 1.2 Phosphate Line i E The phosphate line consists of five tanks (tanks #1, #2, #3, #4, and 45) [Attachment C — I Phosphate Line Diagram]. Tanks 91 and #3 on the phosphate line are process tanks,tanks #2,44 and 45 are rinse tanks. For start-up of the process tanks, iron phosphate (CC 100R) at a concentration of approximately 2% is added to tank #1 and up to 4% in tank 43, when the j concentration of iron phosphate is diluted below these concentrations (2% for tank#1 and 4% for tank #3) additional iron phosphate (CC 50L) is added to the process tanks. As needed the process tanks(Tanks#1 and 43 ) get small amounts of 6487 defoamer to keep the foam from accumulating. jAttachment D—CC IOOR,CC 50L, and 6487 Safety Data Sheets]. The rinse tanks only contain de-ionized water (no chemicals are added to the rinse tanks) and these tanks are only used to rinse metal products after they have been immersed in the process tanks to remove corrosive etches. The Prentier Finishing bYasle analysis Plan 3