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Pioneer Metal Finishing, LLC Industrial Wastewater Discharge Permit <br />page 7 of 44 <br />Facility Description <br /> <br />Pioneer Metal Finishing is classified as a Categorical Industrial User (CIU) as defined in the South Bend <br />Municipal Code. Specifically, Pioneer Metal Finishing is classified as a metal finisher covered by 40 CFR <br />433.17 (PSNS) due to both the anodizing operation and the electroless nickel plating operation. Pioneer is a <br />job shop. Raw materials and process additives used in these processes include customer supplied parts, sulfuric <br />acid, nitric acid, hydrochloric acid, caustic soda, nickel acetate, PTFE, organic dyes, alodine, alkaline soaps, <br />and electroless nickel solution. <br /> <br />PART I – EFFLUENT LIMITATION <br />A. Sample Port and Collection Location <br />1. Sample Site #323 B is located inside the main facility after the indoor final weir tank on the <br />west wall of the wastewater treatment room. Wastewater flows through the weir tank for <br />flow measurement prior to discharge. Grab samples are collected from the flow out of the <br />weir tank, and 24-hour composite samples are collected from the discharge pipe after the <br />weir tank. <br />2. The location of Sample Site Outfall # 323 A is an outdoor manhole on the west side of the <br />building and south of the outside door to the production area. Effluent Limitations are in <br />effect for Outfall # 323 A and wil be sampled if the Control Authority deems it necessary. <br /> <br />3. Any discharge of water or waste having a pH lower than 6.0 S.U. or a pH higher than 11.0 <br />S.U. is prohibited. In addition, the permittee’s wastewater discharge shall not exceed the <br />following effluent limitations: <br /> <br /> Effluent limitations for Sample Site Outfall # 323 A & # 323 B: <br /> <br />Parameter Daily Maximum Limit (mg/L)Monthly Average Limit (mg/L) <br />Arsenic 1.0 0.3 <br />Cadmium Report*Report* <br />Chromium 2.7 1.68 <br />Copper 3.3 1.2 <br />Cyanide 1.18 0.64 <br />Lead 0.68 0.42 <br />Mercury 0.00019 -na- <br />Nickel 3.9 1.2 <br />Oil & Grease 300 -na- <br />Oil & Grease, TPH 100 -na- <br />Silver Report* Report* <br />TTO 2.1 -na- <br />Zinc 2.57 1.46 <br /> <br />