Code of Federal Regulations (alpha)

CFR /  Title 40  /  Part 421  /  Sec. 421.185 Pretreatment standards for existing sources.

Except as provided in 40 CFR 403.7 and 403.13, any existing 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 existing sources. The mass of wastewater pollutants in primary and secondary germanium and gallium process wastewater introduced into a POTW must not exceed the following values:

(a) Still liquor.

PSES for the Primary and Secondary Germanium and Gallium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

germanium chlorinated

--------------Arsenic....................................... 131.70 58.59Lead.......................................... 26.46 12.60Zinc.......................................... 91.98 38.43Fluoride...................................... 2,205.00 1,254.00------------------------------------------------------------------------

(b) Chlorinator wet air pollution control.

PSES for the Primary and Secondary Germanium and Gallium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

germanium chlorinated

--------------Arsenic....................................... 27.530 12.250Lead.......................................... 5.531 2.634Zinc.......................................... 19.230 8.034Fluoride...................................... 461.000 262.100------------------------------------------------------------------------

(c) Germanium hydrolysis filtrate.

PSES for the Primary and Secondary Germanium and Gallium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

germanium hydrolyzed

--------------Arsenic....................................... 39.440 17.550Lead.......................................... 7.925 3.774Zinc.......................................... 27.550 11.510Fluoride...................................... 660.500 375.500------------------------------------------------------------------------

(d) Acid wash and rinse water.

PSES for the Primary and Secondary Germanium and Gallium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

germanium washed

--------------Arsenic....................................... 325.50 144.80Lead.......................................... 65.40 31.14Zinc.......................................... 227.40 94.99Fluoride...................................... 5,450.00 3,099.00------------------------------------------------------------------------

(e) Gallium hydrolysis filtrate.

PSES for the Primary and Secondary Germanium and Gallium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

gallium hydrolyzed

--------------Arsenic....................................... 70.450 31.350Lead.......................................... 14.160 6.742Zinc.......................................... 49.220 20.560Fluoride...................................... 1,180.000 670.800------------------------------------------------------------------------

(f) Solvent extraction raffinate.

PSES for the Primary and Secondary Germanium and Gallium Subcategory------------------------------------------------------------------------

Maximum for

Pollutant or pollutant property Maximum for monthly

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

mg/kg (pounds per

million pounds) of

gallium produced by

solvent extraction

--------------Arsenic....................................... 39.330 17.500Lead.......................................... 7.904 3.764Zinc.......................................... 27.480 11.480Fluoride...................................... 658.700 374.500------------------------------------------------------------------------