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:
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pounds per million pounds) of paste produced | ||
Benzo(a)pyrene | 0.005 | 0.002 |
Antimony | .263 | .117 |
Nickel | .075 | .050 |
Aluminum | .831 | .369 |
Fluoride | 8.092 | 3.591 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pounds per million pounds) of anodes cast | ||
Benzo(a)pyrene | 0.007 | 0.003 |
Antimony | .403 | .180 |
Nickel | .115 | .077 |
Aluminum | 1.277 | .566 |
Fluoride | 12.440 | 5.518 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pounds per million pounds) of anodes baked | ||
Benzo(a)pyrene | 0.146 | 0.067 |
Antimony | 8.346 | 3.719 |
Nickel | 2.378 | 1.600 |
Aluminum | 26.420 | 11.720 |
Fluoride | 257.300 | 114.200 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pounds per million pounds) of anodes baked | ||
Benzo(a)pyrene | 0.002 | 0.001 |
Antimony | .097 | .043 |
Nickel | .028 | .019 |
Aluminum | .306 | .136 |
Fluoride | 2.975 | 1.320 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pounds per million pounds) of anodes baked | ||
Benzo(a)pyrene | 0.025 | 0.011 |
Antimony | 1.409 | .628 |
Nickel | .402 | .270 |
Aluminum | 4.461 | 1.979 |
Fluoride | 43.440 | 19.270 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pounds per million pounds) of anodes baked | ||
Benzo(a)pyrene | 0.038 | 0.018 |
Antimony | 2.197 | .979 |
Nickel | .626 | .421 |
Aluminum | 6.953 | 3.084 |
Fluoride | 67.710 | 30.050 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pounds per million pounds) of cryolite recovered | ||
Benzo(a)pyrene | 1.181 | 0.547 |
Antimony | 420.400 | 189.200 |
Cyanide | 157.600 | 70.060 |
Nickel | 80.570 | 35.030 |
Aluminum | 273.200 | 122.600 |
Fluoride | 29,430.000 | 13,310.000 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pounds per million pounds) of cryolite recovered | ||
Benzo(a)pyrene | 1.181 | 0.547 |
Antimony | 67.610 | 30.120 |
Cyanide | 157.600 | 70.060 |
Nickel | 19.270 | 12.960 |
Aluminum | 214.000 | 94.930 |
Fluoride | 2,084.000 | 924.800 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of cryolite recovered | ||
Benzo(a)pyrene | .000 | |
Antimony | .000 | .000 |
Cyanide | .000 | .000 |
Nickel | .000 | .000 |
Aluminum | .000 | .000 |
Fluoride | .000 | .000 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction | ||
Benzo(a)pyrene | 0.028 | 0.013 |
Antimony | 1.618 | .721 |
Nickel | .461 | .310 |
Aluminum | 5.120 | 2.271 |
Fluoride | 49.860 | 22.130 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction | ||
Benzo(a)pyrene | 0.028 | 0.013 |
Antimony | 10.060 | 4.525 |
Cyanide | 3.771 | 1.676 |
Nickel | 1.928 | .838 |
Aluminum | 6.537 | 2.933 |
Fluoride | 703.900 | 318.500 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction | ||
Benzo(a)pyrene | 0.028 | 0.013 |
Antimony | 1.618 | .721 |
Cyanide | 3.771 | 1.676 |
Nickel | 0.461 | .310 |
Aluminum | 5.120 | 2.271 |
Fluoride | 49.860 | 22.130 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction | ||
Benzo(a)pyrene | 0.056 | 0.026 |
Antimony | 3.204 | 1.428 |
Nickel | .913 | .614 |
Aluminum | 10.140 | 4.499 |
Fluoride | 98.770 | 43.830 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction | ||
Benzo(a)pyrene | 0.045 | 0.021 |
Antimony | 2.588 | 1.153 |
Nickel | .738 | .496 |
Aluminum | 8.194 | 3.634 |
Fluoride | 79.790 | 35.400 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction | ||
Benzo(a)pyrene | (1) | (1) |
Antimony | 5.036 | 2.244 |
Nickel | 1.435 | .965 |
Aluminum | 15.940 | 7.071 |
Fluoride | 155.300 | 68.880 |
1 There shall be no discharge allowance for this pollutant.
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of aluminum produced from electrolytic reduction | ||
Benzo(a)pyrene | .000 | |
Antimony | .000 | .000 |
Nickel | .000 | .000 |
Aluminum | .000 | .000 |
Fluoride | .000 | .000 |
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of aluminum product from direct chill casting | ||
Benzo(a)pyrene | (1) | (1) |
Antimony | 2.565 | 1.143 |
Nickel | .731 | .492 |
Aluminum | 8.120 | 3.602 |
Fluoride | 79.080 | 35.090 |
1 There shall be no discharge allowance for this pollutant.
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of aluminum product from rod casting | ||
Benzo(a)pyrene | (1) | (1) |
Antimony | .201 | .089 |
Nickel | .057 | .038 |
Aluminum | .636 | .282 |
Fluoride | 6.188 | 2.746 |
1 There shall be no discharge allowance for this pollutant.
BAT Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/kg (pound per million pounds) of aluminum product from stationary casting or shot casting | ||
Benzo(a)pyrene | .000 | |
Antimony | .000 | .000 |
Nickel | .000 | .000 |
Aluminum | .000 | .000 |
Fluoride | .000 | .000 |
40 C.F.R. §421.23