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Section 2: Waste Analysis I[Dlanlm � <br /> 2.Y Constitu¢nts 8t Charact¢ristics <br /> The rinse water and filter cake wastes have the potential to be contaaaineted with metals regulated �� <br /> by Califotnia [Title 22 CCR 66261.24(e)(2)(A)] and or exhibit the clvnaacteristic of corrosivity. '� <br /> [Attachment C—Safety Data Sheets fm•Plating Products] <br /> The pH ofthe rinse water is tested manually on-site prior to transferring to on-site hoatmeni system <br /> (if the pH is 2, or less m- 72.5, or moae the rinse water will be sequestered and managed as a <br /> corrosive(D002)dtaracteristic waste).Logs with the pH of the rinse water are maintained on-site <br /> fnr a minimum of three years. <br /> Water samples have been collected£rom the rinse tanks attd filter cake and analyzed for California <br /> Regulated Metals(CAM-77),which are constituents of concern acrd authorized to ba treated under <br /> the facility's permit. [Attachment D—Analytical Reports] <br /> 2.2 T¢st Methods <br /> The following table identifies the test methods used for the filter calve and aqueous waste analysis: <br /> Rinse Water CAM-17 Metals 3010A�7470A(Mercury) <br /> Filter Catw CAM-17 Metals 6020 <br /> 2.3 Sample Collection Procedures <br /> Twice a month on the £rat Tuesday and thud Thursday of every month precision enviro-tech <br /> comes to our facility to collect sample of our waste water.These saanples are collected and tested <br /> independently by precision enviro-tech. They have a rotating schedaile to test for certain <br /> constituents. These test results are given to us and we turn them in to the city of Stockton's water <br /> district <br /> Approximately twice/year or when deemed necessaay the contents of the tanks are replaced end <br /> tirensfeaxed to the 750-gallon storage tank. We then use flocculant,Clean�Cloar to panduce a pin <br /> floc stirring at 100 RPM and raise the pH to 9. The metal we normally have to remove,drops out <br /> of solution best at a pH of 9. Tho crystals at the bottom of the tank ere then drained into a holding <br /> vessel. This is treated as hazardous waste end is disposed of by Shop Hezaad solutions as a <br /> hazardous waste. <br /> Pvanuer Mnls/r/ng Hroa/e Ana/Psis P/an <br /> 2 <br />