40 CFR 421.323: 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