Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

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: (a) Refinery sump filtrate. BAT Limitations for the Secondary Uranium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of uranium processed in the refinery Chromium (total) 27.14 11.00 Copper 93.88 44.74 Nickel 40.34 27.14 Fluoride 2,567.00 1,459.00 (b) Slag leach reslurry. BAT Limitations for the Secondary Uranium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of uranium processed in the refinery Chromium (total) 1.689 0.685 Copper 5.844 2.785 Nickel 2.511 1.689 Fluoride 159.800 90.860 (c) Solvent extraction raffinate filtrate. BAT Limitations for the Secondary Uranium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of uranium processed in the refinery Chromium (total) 2.357 0.955 Copper 8.152 3.885 Nickel 3.503 2.357 Fluoride 222.900 126.700 (d) Digestion wet air pollution control. BAT Limitations for the Secondary Uranium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of uranium processed in the refinery Chromium (total) 0.000 0.000 Copper 0.000 0.000 Nickel 0.000 0.000 Fluoride 0.000 0.000 (e) Evaporation and denitration wet air pollution control. BAT Limitations for the Secondary Uranium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of uranium trioxide produced Chromium (total) 0.000 0.000 Copper 0.000 0.000 Nickel 0.000 0.000 Fluoride 0.000 0.000 (f) Hydrofluorination alkaline scrubber. BAT Limitations for the Secondary Uranium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of uranium tetrafluoride produced Chromium (total) 0.007 0.003 Copper 0.026 0.012 Nickel 0.011 0.007 Fluoride 0.700 0.398 (g) Hydrofluorination water scrubber. BAT Limitations for the Secondary Uranium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of uranium tetrafluoride produced Chromium (total) 0.000 0.000 Copper 0.000 0.000 Nickel 0.000 0.000 Fluoride 0.000 0.000 (h) Magnesium reduction and casting floor wash. BAT Limitations for the Secondary Uranium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of uranium produced by magnesium reduction Chromium (total) 0.011 0.005 Copper 0.039 0.018 Nickel 0.017 0.011 Fluoride 1.054 0.599 (i) Laundry wastewater. BAT Limitations for the Secondary Uranium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of uranium produced by magnesium reduction Chromium (total) 0.036 0.014 Copper 0.123 0.059 Nickel 0.053 0.036 Fluoride 3.360 1.910