{"data":{"id":"us/40-cfr-420.46","jurisdiction":"us","citation":"40 CFR 420.46","heading":"Pretreatment standards for new sources (PSNS).","body":"Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.\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 Pretreatment standards for new sources\nMaximum for any 1 day Average of daily values for 30 consecutive days\nKg/kkg (pounds per 1,000 lb) of product\nLead 0.000188 0.0000626\nZinc 0.000282 0.0000939\n(c) Basic oxygen furnace steelmaking—wet—open combustion; electric arc furnace steelmaking—wet.\nSubpart D\nPollutant or pollutant property Pretreatment standards for new sources\nMaximum for any 1 day Average of daily values for 30 consecutive days\nKg/kkg (pounds per 1,000 lb) of product\nLead 0.000413 0.000138\nZinc 0.000620 0.000207","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":"99b277502c03de154c85e7eb294e16d4e87e78ef7e7c686b30722c464a4db2ea","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-420.45","next":"us/40-cfr-420.47"},"notice":"GroundRules: Original legal text. Not legal advice."}