{"data":{"id":"us/40-cfr-461.75","jurisdiction":"us","citation":"40 CFR 461.75","heading":"Pretreatment standards for new sources (PSNS).","body":"(a) Except as provided in § 403.7 any new source subject to this subpart that introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources listed below:\n(1) Subpart G—Zinc Oxide Formed Anodes—PSNS.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of zinc\nEnglish units—pounds per 1,000,000 pounds of zinc\nChromium 4.55 1.97\nMercury 2.82 1.19\nSilver 4.55 1.97\nZinc 0.87 0.39\nManganese 6.50 4.98\n(2) Subpart G—Electrodeposited Anodes—PSNS.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of zinc deposited\nEnglish units—pounds per 1,000,000 pounds of zinc deposited\nChromium 45.09 19.54\nMercury 27.91 11.81\nSilver 45.09 19.54\nZinc 8.59 3.86\nManganese 64.41 49.38\n(3) Subpart G—Silver Powder Formed Cathodes—PSNS.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of silver applied\nEnglish units—pounds per 1,000,000 pounds of silver applied\nChromium 6.24 2.70\nMercury 3.86 1.63\nSilver 6.24 2.70\nZinc 1.19 0.53\nManganese 8.91 6.83\n(4) Subpart G—Silver Oxide Powder Formed Cathodes—PSNS.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of silver applied\nEnglish units—pounds per 1,000,000 pounds of silver applied\nChromium 4.17 1.81\nMercury 2.58 1.09\nSilver 4.17 1.81\nZinc 0.79 0.36\nManganese 5.96 4.57\n(5) Subpart G—Silver Peroxide Cathodes—PSNS.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of silver applied\nEnglish units—pounds per 1,000,000 pounds of silver applied\nChromium 1.00 0.43\nMercury 0.62 0.26\nSilver 1.00 0.43\nZinc 0.19 0.09\nManganese 1.43 1.09\n(6) Subpart G—Nickel Impregnated Cathodes—PSNS.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of nickel applied\nEnglish units—pounds per 1,000,000 pounds of nickel applied\nChromium 42.0 18.2\nMercury 26.0 11.0\nNickel 42.0 18.2\nSilver 42.0 18.2\nZinc 8.0 3.6\nManganese 60.0 46.0\n(7) Subpart G—Miscellaneous Wastewater Streams—PSNS.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of cells produced\nEnglish units—pounds per 1,000,000 pounds of cells produced\nChromium 0.27 0.12\nCyanide 0.039 0.016\nMercury 0.17 0.07\nNickel 0.27 0.12\nSilver 0.27 0.12\nZinc 0.05 0.02\nManganese 0.39 0.30\n(8) Subpart G—Silver Etch—PSNS.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of silver processed\nEnglish units—pounds per 1,000,000 pounds of silver processed\nChromium 1.56 0.68\nMercury 0.97 0.41\nSilver 1.56 0.68\nZinc 0.30 0.13\nManganese 2.23 1.71\n(9) Subpart G—Silver Peroxide Production—PSNS.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of silver peroxide produced\nEnglish units—pounds per 1,000,000 pounds of silver peroxide produced\nChromium 1.66 0.72\nMercury 1.03 0.44\nSilver 1.66 0.72\nZinc 0.32 0.14\nManganese 2.37 1.82\n(10) Subpart G—Silver Powder Production—PSNS.\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of silver powder produced\nEnglish units—pounds per 1,000,000 pounds of silver powder produced\nChromium 0.67 0.29\nMercury 0.42 0.18\nSilver 0.67 0.29\nZinc 0.13 0.06\nManganese 0.96 0.74\n(b) There shall be no discharge allowance for process wastewater pollutants from any battery manufacturing operation other than those battery manufacturing operations listed above.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 461—BATTERY MANUFACTURING POINT SOURCE CATEGORY","Subpart G—Zinc Subcategory"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"483e4fdb79ae3c413d8b4c372a79f3ceb4a469d896b7cc5faba8caa147ea8e7f","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-461.74","next":"us/40-cfr-463.1"},"notice":"GroundRules: Original legal text. Not legal advice."}