40 CFR 421.322: Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

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 practiacable technology currently available:

(a) Refinery sump filtrate.

BPT 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 32.270 13.200

Copper 139.300 73.340

Nickel 140.800 93.140

Fluoride 2,567.000 1,459.000

Total suspended solids 3,007.000 1,430.000

pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(b) Slag leach reslurry.

BPT 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) 2.009 0.822

Copper 8.675 4.566

Nickel 8.767 5.799

Fluoride 159.800 90.860

Total suspended solids 187.200 89.040

pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(c) Solvent extraction raffinate filtrate.

BPT 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) 2.802 1.146

Copper 12.100 6.369

Nickel 12.230 8.089

Fluoride 222.900 126.700

Total suspended solids 261.100 124.200

pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(d) Digestion wet air pollution control.

BPT 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

Total suspended solids 0.000 0.000

pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(e) Evaporation and denitration wet air pollution control.

BPT 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

Total suspended solids 0.000 0.000

pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(f) Hydrofluorination alkaline scrubber.

BPT 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) 0.009 0.004

Copper 0.038 0.020

Nickel 0.038 0.025

Fluoride 0.700 0.398

Total suspended solids 0.820 0.390

pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(g) Hydrofluorination water scrubber.

BPT 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

Total suspended solids 0.000 0.000

pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(h) Magnesium reduction and casting floor wash.

BPT 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) 0.013 0.005

Copper 0.057 0.030

Nickel 0.058 0.038

Fluoride 1.054 0.599

Total suspended solids 1.234 0.587

pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(i) Laundry wastewater.

BPT 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) 0.084 0.035

Copper 0.365 0.192

Nickel 0.369 0.244

Fluoride 6.720 3.821

Total suspended solids 7.872 3.744

pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.