{"data":{"id":"us/40-cfr-420.124","jurisdiction":"us","citation":"40 CFR 420.124","heading":"New source performance standards (NSPS).","body":"The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below.\n(a) Galvanizing, terne coating and other coatings—(1) Strip, sheet, and miscellaneous products.\nSubpart L\nPollutant or pollutant property New source performance standards\nMaximum for any 1 day Average of daily values for 30 consecutive days\nKg/kkg (pounds per 1,000 lb) of product\nTSS 0.0438 0.0188\nO\u0026G 0.0188 0.00626\nLead 0.000282 0.0000939\nZinc 0.000376 0.000125\nChromium (hexavalent) 1 0.0000376 0.0000125\npH (2) (2)\n1 The limitations for hexavalent chromium shall be applicable only to galvanizing operations which discharge wastewaters from the chromate rinse step.\n2 Within the range of 6.0 to 9.0.\n(2) [Reserved]\n(b) Galvanizing and other coatings—(1) Wire products and fasteners.\nSubpart L\nPollutant or pollutant property New source performance standards\nMaximum for any 1 day Average of daily values for 30 consecutive days\nKg/kkg (pounds per 1,000 lb) of product\nTSS 0.175 0.0751\nO\u0026G 0.0751 0.0250\nLead 0.00113 0.000376\nZinc 0.00150 0.000500\nChromium (hexavalent) 1 0.000150 0.0000501\npH (1) (1)\n1 The limitations for hexavalent chromium shall be applicable only to galvanizing operations which discharge wastewaters from the chromate rinse step.\n2 Within the range of 6.0 to 9.0.\n(2) [Reserved]\n(c) Fume scrubbers.\nSubpart L\nNew source performance standards Pollutant or pollutant property\nMaximum for any 1 day Average of daily values for 30 consecutive days\nkg/per day\nTSS 5.72 2.45\nO\u0026G 2.45 0.819\nLead 0.0368 0.0123\nZinc 0.0491 0.0164\nChromium (hexavalent) 1 0.00490 0.00163\npH (2) (2)\n1 The limitations for hexavalent chromium shall be applicable only to galvanizing operations which discharge wastewaters from the chromate rinse step.\n2 Within the range of 6.0 to 9.0.\nThe above limitations shall be applicable to each fume scrubber associated with any of the coating operations specified above.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 420—IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY","Subpart L—Hot Coating 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":"c20e5c892c594a5f31fe5b598474ae441b1f5589caad774822c56dc6b7e28546","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-420.123","next":"us/40-cfr-420.125"},"notice":"GroundRules: Original legal text. Not legal advice."}