40 Protection of Environment 26 2003-07-01 2003-07-01 false Pretreatment standards for new sources. 421.326 Section 421.326 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Secondary Uranium Subcategory
ยง 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