{"data":{"id":"us/40-cfr-471.12","jurisdiction":"us","citation":"40 CFR 471.12","heading":"Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).","body":"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 (BAT):\n(a) Rolling spent emulsions.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with emulsion\nAntimony 0.067 0.030\nLead 0.010 0.005\n(b) Rolling spent soap solutions.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with soap solutions\nAntimony 0.120 0.055\nLead 0.018 0.009\n(c) Drawing spent neat oils—subpart A—BAT. There shall be no discharge of process wastewater pollutants.\n(d) Drawing spent emulsions.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with emulsions\nAntimony 0.080 0.034\nLead 0.011 0.005\n(e) Drawing spent soap solutions.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with soap solutions\nAntimony 0.022 0.010\nLead 0.003 0.002\n(f) Extrusion press and solution heat treatment contact colling water.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds/per million off-pounds) of lead-tin-bismuth heat treated\nAntimony 0.414 0.185\nLead 0.061 0.030\n(g) Extrusion press hydraulic fluid leakage.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds/per million off-pounds) of lead-tin-bismuth extruded\nAntimony 0.158 0.071\nLead 0.023 0.011\n(h) Continuous strip casting contact cooling water.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method\nAntimony 0.003 0.001\nLead 0.0004 0.0002\n(i) Semi-continuous ingot casting contact cooling water.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method\nAntimony 0.009 0.004\nLead 0.001 0.0006\n(j) Shot casting contact cooling water.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot cast\nAntimony 0.107 0.048\nLead 0.016 0.008\n(k) Shot-forming wet air pollution control scrubber blowdown.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot formed\nAntimony 0.169 0.076\nLead 0.025 0.012\n(l) Alkaline cleaning spent baths.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned\nAntimony 0.345 0.154\nLead 0.051 0.024\n(m) Alkaline cleaning rinse.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned\nAntimony 0.678 0.302\nLead 0.099 0.047\n(n) Swaging spent emulsions.\nSubpart A—BAT\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/off-kg (pounds per million off-pounds) of lead-tin-bismuth swaged with emulsion\nAntimony 0.005 0.002\nLead 0.0008 0.0004\n(o) Degreasing spent solvents—subpart A—BAT. There shall be no discharge of process wastewater pollutants.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 471—NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY","Subpart A—Lead-Tin-Bismuth Forming 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":"cf810b9d4cef911e189de7365a642d29c08a5f0bd2573e0ab295272e81a790ac","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-471.11","next":"us/40-cfr-471.13"},"notice":"GroundRules: Original legal text. Not legal advice."}