{"data":{"id":"us/40-cfr-421.182","jurisdiction":"us","citation":"40 CFR 421.182","heading":"Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.","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 practicable technology currently available:\n(a) Still liquor.\nBPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of germanium chlorinated\nArsenic 131.700 58.590\nLead 26.460 12.600\nZinc 91.980 38.430\nFluoride 2,205.000 1,254.000\nTotal suspended solids 2,583.000 1,229.000\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(b) Chlorinator wet air pollution control.\nBPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of germanium chlorinated\nArsenic 27.530 12.250\nLead 5.531 2.634\nZinc 19.230 8.034\nFluoride 461.000 262.100\nTotal suspended solids 540.000 256.800\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(c) Germanium hydrolysis filtrate.\nBPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of germanium hydrolyzed\nArsenic 39.440 17.550\nLead 7.925 3.774\nZinc 27.550 11.510\nFluoride 660.500 375.500\nTotal suspended solids 773.700 368.000\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(d) Acid wash and rinse water.\nBPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of germanium washed\nArsenic 325.500 144.800\nLead 65.400 31.140\nZinc 227.400 94.990\nFluoride 5,450.000 3,099.000\nTotal suspended solids 6,385.000 3,037.000\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.\n(e) Gallium hydrolysis filtrate.\nBPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of gallium hydrolyzed\nArsenic 70.450 31.350\nLead 14.160 6.742\nZinc 49.220 20.560\nFluoride 1,180.000 670.800\nTotal suspended solids 1,382.000 657.300\npH (1) 1)\n1 Within the range of 7.5 to 10.0 at all times.\n(f) Solvent extraction raffinate.\nBPT Limitations for the Primary and Secondary Germanium and Gallium Subcategory\nPollutant or pollutant property Maximum for any 1 day Maximum for monthly average\nmg/kg (pounds per million pounds) of gallium produced by solvent extraction\nArsenic 39.330 17.500\nLead 7.904 3.764\nZinc 27.480 11.480\nFluoride 658.700 374.500\nTotal suspended solids 771.600 367.000\npH (1) (1)\n1 Within the range of 7.5 to 10.0 at all times.","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 P—Primary and Secondary Germanium and Gallium 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":"fa43b20dbcd3f2344e65fcc45ed775b6f6e9a9ae00306cab02ec3629244f08dd","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-421.181","next":"us/40-cfr-421.183"},"notice":"GroundRules: Original legal text. Not legal advice."}