{"data":{"id":"us/40-cfr-420.44","jurisdiction":"us","citation":"40 CFR 420.44","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) Basic oxygen furnace steelmaking—semi-wet; and electric arc furnace steelmaking—semi-wet. No discharge of process wastewater pollutants to navigable waters.\n(b) Basic oxygen furnace steelmaking—wet-suppressed combustion.\nSubpart D\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 0.0146 0.00522\nLead 0.000188 0.0000626\nZinc 0.000282 0.0000939\npH (1) (1)\n1 Within the range of 6.0 to 9.0.\n(c) Basic oxygen furnace steelmaking—wet open combustion; and electric arc furnace steelmaking—wet.\nSubpart D\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 0.0321 0.0115\nLead 0.000413 0.000138\nZinc 0.000620 0.000207\npH (1) (1)\n1 Within the range of 6.0 to 9.0.","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 D—Steelmaking 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":"45a215ac0cb3d3d88fd12d3e873d93d4202e77b25b268a09be95e9c22305cb5b","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-420.43","next":"us/40-cfr-420.45"},"notice":"GroundRules: Original legal text. Not legal advice."}