CFR / Title 40 / Part 421 / Sec. 421.323 Effluent limitations guidelines representing the degreeavailable technology economically achievable.

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 available technology economically achievable:

(a) Refinery sump filtrate.

BAT Limitations for the Secondary Uranium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

uranium processed in the

refinery

--------------Chromium (total).............................. 27.14 11.00Copper........................................ 93.88 44.74Nickel........................................ 40.34 27.14Fluoride...................................... 2,567.00 1,459.00------------------------------------------------------------------------

(b) Slag leach reslurry.

BAT Limitations for the Secondary Uranium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

uranium processed in the

refinery

--------------Chromium (total).............................. 1.689 0.685Copper........................................ 5.844 2.785Nickel........................................ 2.511 1.689Fluoride...................................... 159.800 90.860------------------------------------------------------------------------

(c) Solvent extraction raffinate filtrate.

BAT Limitations for the Secondary Uranium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

uranium processed in the

refinery

--------------Chromium (total).............................. 2.357 0.955Copper........................................ 8.152 3.885Nickel........................................ 3.503 2.357Fluoride...................................... 222.900 126.700------------------------------------------------------------------------

(d) Digestion wet air pollution control.

BAT Limitations for the Secondary Uranium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

uranium processed in the

refinery

--------------Chromium (total).............................. 0.000 0.000Copper........................................ 0.000 0.000Nickel........................................ 0.000 0.000Fluoride...................................... 0.000 0.000------------------------------------------------------------------------

(e) Evaporation and denitration wet air pollution control.

BAT Limitations for the Secondary Uranium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

uranium trioxide

produced

(f) Hydrofluorination alkaline scrubber.

BAT Limitations for the Secondary Uranium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

uranium tetrafluoride

produced

--------------Chromium (total).............................. 0.007 0.003Copper........................................ 0.026 0.012Nickel........................................ 0.011 0.007Fluoride...................................... 0.700 0.398------------------------------------------------------------------------

(g) Hydrofluorination water scrubber.

BAT Limitations for the Secondary Uranium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

uranium tetrafluoride

produced

(h) Magnesium reduction and casting floor wash.

BAT Limitations for the Secondary Uranium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

uranium produced by

magnesium reduction

--------------Chromium (total).............................. 0.011 0.005Copper........................................ 0.039 0.018Nickel........................................ 0.017 0.011Fluoride...................................... 1.054 0.599------------------------------------------------------------------------

(i) Laundry wastewater.

BAT Limitations for the Secondary Uranium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

any 1 day average------------------------------------------------------------------------

mg/kg (pounds per

million pounds) of

uranium produced by

magnesium reduction

--------------Chromium (total).............................. 0.036 0.014Copper........................................ 0.123 0.059Nickel........................................ 0.053 0.036Fluoride...................................... 3.360 1.910------------------------------------------------------------------------