{"data":{"id":"us/40-cfr-421.133","jurisdiction":"us","citation":"40 CFR 421.133","heading":"Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.","body":"Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:\n(a) Subpart M—Battery Cracking.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead scrap produced\nAntimony 1.299 .579\nArsenic .936 .384\nLead .189 .087\nZinc .687 .283\nAmmonia (as N) .000 .000\n(b) Subpart M—Blast, Reverberatory, or Rotary Furnace Wet Air Pollution Control.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead produced from smelting\nAntimony 5.038 2.245\nArsenic 3.628 1.488\nLead .731 .339\nZinc 2.662 1.096\nAmmonia (as N) 0.000 0.000\n(c) Subpart M—Kettle Wet Air Pollution Control.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead produced from refining\nAntimony .087 .039\nArsenic .063 .026\nLead .013 .006\nZinc .046 .019\nAmmonia (as N) .000 .000\n(d) Subpart M—Lead Paste Desulfurization.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead processed through desulfurization\nAntimony .000 .000\nArsenic .000 .000\nLead .000 .000\nZinc .000 .000\nAmmonia (as N) .000 .000\n(e) Subpart M—Casting Contact Cooling.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead cast\nAntimony .042 .019\nArsenic .031 .013\nLead .006 .003\nZinc .022 .009\nAmmonia (as N) .000 .000\n(f) Subpart M—Truck Wash.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead produced from smelting\nAntimony .041 .018\nArsenic .029 .012\nLead .006 .003\nZinc .021 .009\nAmmonia (as N) .000 .000\n(g) Subpart M—Facility Washdown.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead produced from smelting\nAntimony .000 .000\nArsenic .000 .000\nLead .000 .000\nZinc .000 .000\nAmmonia (as N) .000 .000\n(h) Subpart M—Battery Case Classification.\nBAT Effluent Limitations\nPollutant pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead scrap produced\nAntimony .000 .000\nArsenic .000 .000\nLead .000 .000\nZinc .000 .000\nAmmonia (as N) .000 .000\n(i) Subpart M—Employee Handwash.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead produced from smelting\nAntimony .052 .023\nArsenic .038 .015\nLead .008 .004\nZinc .028 .011\nAmmonia (as N) .000 .000\n(j) Subpart M—Employee Respirator Wash.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead produced from smelting\nAntimony .085 .038\nArsenic .061 .025\nLead .012 .006\nZinc .045 .018\nAmmonia (as N) .000 .000\n(k) Subpart M—Laundering of Uniforms.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of lead produced from smelting\nAntimony .247 .110\nArsenic .178 .073\nLead .036 .017\nZinc .131 .054\nAmmonia (as N) .000 .000","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","Subpart M—Secondary Lead 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":"dc93a0fb0f2c6dda1cb44ef0fc21b8ea3cadd5ca39b6758ead4d6662c569919c","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-421.132","next":"us/40-cfr-421.134"},"notice":"GroundRules: Original legal text. Not legal advice."}