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 primary antimony process wastewater introduced into a POTW shall not exceed the following values:
(a) Sodium Antimonate Autoclave Wastewater.
PSNS for the Primary Antimony Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per million
pounds) of antimony
contained in sodium
antimonate product
---------------Antimony.................................... 30.150 13.440Arsenic..................................... 21.720 9.687Mercury..................................... 2.344 0.937------------------------------------------------------------------------
(b) Fouled Anolyte.
PSNS for the Primary Antimony Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per million
pounds) of antimony metal
produced by electrowinning
---------------Antimony.................................... 30.150 13.440Arsenic..................................... 21.720 9.687Mercury..................................... 2.344 0.937------------------------------------------------------------------------
(c) Cathode Antimony Washwater.
PSNS for the Primary Antimony Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per million
pounds) of antimony metal
produced by electrowinning
---------------Antimony.................................... 60.310 26.870Arsenic..................................... 43.430 19.370Mercury..................................... 4.687 1.875------------------------------------------------------------------------ Sec. 421.147 [Reserved]