View all text of Subpart AD [§ 421.320 - § 421.327]

§ 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)27.1411.00 Copper93.8844.74 Nickel40.3427.14 Fluoride2,567.001,459.00 Total suspended solids1,100.00880.10 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)1.6890.685 Copper5.8442.785 Nickel2.5111.689 Fluoride159.80090.860 Total suspended solids68.49054.790 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)2.3570.955 Copper8.1523.885 Nickel3.5032.357 Fluoride222.900126.700 Total suspended solids95.54076.430 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)0.0000.000 Copper0.0000.000 Nickel0.0000.000 Fluoride0.0000.000 Total suspended solids0.0000.000 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)0.0000.000 Copper0.0000.000 Nickel0.0000.000 Fluoride0.0000.000 Total suspended solids0.0000.000 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)0.0070.003 Copper0.0260.012 Nickel0.0110.007 Fluoride0.7000.398 Total suspended solids0.3000.240 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)0.0000.000 Copper0.0000.000 Nickel0.0000.000 Fluoride0.0000.000 Total suspended solids0.0000.000 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)0.0110.005 Copper0.0390.018 Nickel0.0170.011 Fluoride1.0540.599 Total suspended solids0.4520.361 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)0.0360.014 Copper0.1230.059 Nickel0.0530.036 Fluoride3.3601.910 Total suspended solids1.4401.152 pH( 1)( 1)

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