{"data":{"id":"us/40-cfr-421.93","jurisdiction":"us","citation":"40 CFR 421.93","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:\nSubpart I—Metallurgical Acid Plant—BAT Effluent Limitations\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per/million pounds) of 100 pct sulfuric acid capacity\nArsenic 3.550 1.584\nCadmium 0.511 0.204\nCopper 3.269 1.558\nLead 0.715 0.332\nZinc 2.605 1.073\nFluoride 1 89.390 50.820\nMolybdenum 1 [Reserved] [Reserved].\n1 For Molybdenum acid plants only.","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 I—Metallurgical Acid Plants 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":"484ff9449650e8f06ca920110950306b59cb3f9e06557e9b760c305a963286a0","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-421.92","next":"us/40-cfr-421.94"},"notice":"GroundRules: Original legal text. Not legal advice."}