{"data":{"id":"us/40-cfr-461.63","jurisdiction":"us","citation":"40 CFR 461.63","heading":"New source performance standards (NSPS).","body":"(a) The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below:\n(1) Subpart F—Silver Chloride Cathodes—Chemically Reduced—NSPS.\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\nLead 22.93 10.65\nSilver 23.75 9.83\nIron 98.28 49.96\nTSS 1,228.5 982.8\nCOD 4,095.0 1,999.0\npH (1) (1)\n1 Within the range of 7.5-10.0 at all times.\n(2) Subpart F—Silver Chloride Cathodes—Electrolytic—NSPS.\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\nLead 40.6 18.9\nSilver 42.1 17.4\nIron 174.0 88.5\nTSS 2,175.0 1,740.0\nCOD 7,250.0 3,540.0\npH (1) (1)\n1 Within the range of 7.5-10.0 at all times.\n(3) Subpart F—Cell Testing—NSPS.\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\nLead 19.5 7.89\nSilver 15.3 6.31\nIron 63.1 32.1\nTSS 789.0 631.2\nCOD 2,630.0 1,290.0\npH (1) (1)\n1 Within the range of 7.5-10.0 at all times.\n(4) Subpart F—Floor and Equipment Wash—NSPS.\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\nLead 0.026 0.012\nSilver 0.027 0.011\nIron 0.112 0.057\nCOD 4.70 2.30\nTSS 1.41 1.13\npH (1) (1)\n1 Within the range of 7.5-10.0 at all times.\n(5) Subpart F—Air Scrubber—NSPS.\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\nTSS 8,467.0 4,030.0\npH (1) (1)\n1 Within the range of 7.5-10.0 at all times.\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 F—Magnesium 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":"2ab4973bef66f6d0a68b33bcd4fbda81293b71b906a22ef618c068bd13a3c0f8","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-461.61-461.62","next":"us/40-cfr-461.64"},"notice":"GroundRules: Original legal text. Not legal advice."}