{"data":{"id":"us/40-cfr-421.73","jurisdiction":"us","citation":"40 CFR 421.73","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 G—Sinter Plant Materials Handling Wet Air Pollution Control.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of sinter production\nLead 100.800 46.800\nZinc 367.200 151.200\n(b) Subpart G—Blast Furnace Wet Air Pollution Control.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of blast furnace lead bullion produced\nLead .000 .000\nZinc .000 .000\n(c) Subpart G—Blast Furnace Slag Granulation.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of blast furnace lead bullion produced\nLead .000 .000\nZinc .000 .000\n(d) Subpart G—Dross Reverberatory Slag Granulation.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of slag, speiss, or matte granulated\nLead 1,612.000 748.400\nZinc 5,872.000 2,418.000\n(e) Subpart G—Dross Reverberatory Furnace Wet Air Pollution Control.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of dross reverberatory furnace production\nLead .000 .000\nZinc .000 .000\n(f) Subpart G—Zinc Fuming Wet Air Pollution Control.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of blast furnance lead bullion produced\nLead .000 .000\nZinc .000 .000\n(g) Subpart G—Hard Lead Refining Slag Granulation.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of hard lead produced\nLead .000 .000\nZinc .000 .000\n(h) Subpart G—Hard Lead Refining Wet Air Pollution Control.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of hard lead produced\nLead .000 .000\nZinc .000 .000\n(i) Subpart G—Facility Washdown.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of lead bullion produced\nLead .000 .000\nZinc .000 .000\n(j) Subpart G—Employee Handwash.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of lead bullion produced\nLead .924 .429\nZinc 3.366 1.386\n(k) Subpart G—Respirator Wash.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of lead bullion produced\nLead 1.484 .689\nZinc 5.406 2.226\n(l) Subpart G—Laundering of Uniforms.\nBAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kkg (pounds per billion pounds) of lead bullion produce\nLead 4.340 2.015\nZinc 15.810 6.510","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 G—Primary 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":"bb34558c689bd26940c6ae3f505e66f9a09b3a12033624ffd318851f09572061","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-421.72","next":"us/40-cfr-421.74"},"notice":"GroundRules: Original legal text. Not legal advice."}