40 CFR 421.324: Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:

(a) Refinery sump filtrate.

NSPS 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

Total suspended solids 1,100.00 880.10

pH (1) (1)

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

(b) Slag leach reslurry.

NSPS 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

Total suspended solids 68.490 54.790

pH (1) (1)

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

(c) Solvent extraction raffinate filtrate.

NSPS 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

Total suspended solids 95.540 76.430

pH (1) (1)

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

(d) Digestion wet air pollution control.

NSPS 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

NSPS 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.

NSPS 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

Total suspended solids 0.300 0.240

pH (1) (1)

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

(g) Hydrofluorination water scrubber.

NSPS 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.

NSPS 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

Total suspended solids 0.452 0.361

pH (1) (1)

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

(i) Laundry wastewater.

NSPS 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

Total suspended solids 1.440 1.152

pH (1) (1)

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