40 CFR 421.326: Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in secondary uranium process wastewater introduced into a POTW shall not exceed the following values:

(a) Refinery sump filtrate.

PSNS 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.

PSNS 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.

PSNS 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.

PSNS 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.

PSNS 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.

PSNS 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.

PSNS 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.

PSNS 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) 0.011 0.005

Copper 0.039 0.018

Nickel 0.017 0.011

Fluoride 1.054 0.599

(i) Laundry wastewater.

PSNS 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