{"data":{"id":"us/40-cfr-461.12","jurisdiction":"us","citation":"40 CFR 461.12","heading":"Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).","body":"(a) Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:\n(1) Subpart A—Electrodeposited Anodes.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of cadmium\nEnglish units—pounds per 1,000,000 pounds of cadmium\nCadmium 11.95 5.27\nNickel 67.49 44.64\nZinc 51.32 21.44\nCobalt 7.38 3.16\n(2) Subpart A—Impregnated Anodes.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of cadmium\nEnglish units—pounds per 1,000,000 pounds of cadmium\nCadmium 68.0 30.0\nNickel 384.0 254.0\nZinc 292.0 122.0\nCobalt 42.0 18.0\n(3) Subpart A—Nickel Electrodeposited Cathodes.\nBAT Effluent Limitations\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\nCadmium 11.22 4.95\nNickel 63.36 41.91\nZinc 48.18 20.13\nCobalt 6.93 2.97\n(4) Subpart A—Nickel Impregnated Cathodes.\nBAT Effluent Limitations\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\nCadmium 68.0 30.0\nNickel 384.0 254.0\nZinc 292.0 122.0\nCobalt 42.0 18.0\n(5) Subpart A—Miscellaneous Wastewater Streams.\nBAT Effluent Limitations\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\nCadmium 0.79 0.35\nNickel 4.47 2.96\nZinc 3.40 1.42\nCobalt 0.49 0.21\n(6) Subpart A—Cadmium Powder Production.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of cadmium powder produced\nEnglish units—pounds per 1,000,000 pounds of cadmium powder produced\nCadmium 2.23 0.99\nNickel 12.61 8.34\nZinc 9.59 4.01\nCobalt 1.38 0.59\n(7) Subpart A—Silver Powder Production.\nBAT Effluent Limitations\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\nCadmium 1.09 0.48\nNickel 6.16 4.08\nSilver 1.32 0.55\nZinc 4.69 1.96\nCobalt 0.67 0.29\n(8) Subpart A—Cadmium Hydroxide Production.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of cadmium used\nEnglish units—pounds per 1,000,000 pounds of cadmium used\nCadmium 0.05 0.02\nNickel 0.27 0.18\nZinc 0.20 0.09\nCobalt 0.03 0.01\n(9) Subpart A—Nickel Hydroxide Production.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nMetric units—mg/kg of nickel used\nEnglish units—pounds per 1,000,000 pounds of nickel used\nCadmium 5.61 2.48\nNickel 31.68 20.96\nZinc 24.09 10.07\nCobalt 3.47 1.49\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 A—Cadmium 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":"ae0ae86d70cdba6007c03f11f5139c40c7cfe59b62fb5bcb7c2127632fb11512","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-461.11","next":"us/40-cfr-461.13"},"notice":"GroundRules: Original legal text. Not legal advice."}