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 secondary tin process wastewater introduced into a POTW must not exceed the following values:
(a) Tin smelter SO2 scrubber.
PSES for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of crude
tapped tin produced
--------------Arsenic....................................... 12.790 5.703Lead.......................................... 2.575 1.196Iron.......................................... 11.040 5.611Tin........................................... 3.495 2.024------------------------------------------------------------------------
(b) Dealuminizing rinse.
PSES for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
dealuminized scrap
produced
--------------Lead.......................................... 0.010 0.005Cyanide (total)............................... 0.007 0.003Fluoride...................................... 1.225 0.697Tin........................................... 0.013 0.008------------------------------------------------------------------------
(c) Tin mud acid neutralization filtrate.
PSES for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
neutralized dewatered
tin mud produced
--------------Lead.......................................... 1.413 0.656Cyanide (total)............................... 1.009 0.404Fluoride...................................... 176.600 100.400Tin........................................... 1.918 1.110------------------------------------------------------------------------
(d) Tin hydroxide wash.
PSES for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of tin
hydroxide washed
--------------Lead.......................................... 3.347 1.554Cyanide (total)............................... 2.391 0.956Fluoride...................................... 418.400 237.900Tin........................................... 4.542 2.630------------------------------------------------------------------------
(e) Spent electrowinning solution from new scrap.
PSES for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
cathode tin produced
--------------Lead.......................................... 4.704 2.184Cyanide (total)............................... 3.360 1.344Fluoride...................................... 588.000 334.300Tin........................................... 6.384 3.696------------------------------------------------------------------------
(f) Spent electrowinning solution from municipal solid waste.
PSES for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of MSW
scrap used as raw
material
--------------Lead.......................................... 0.033 0.015Cyanide (total)............................... 0.024 0.010Fluoride...................................... 4.165 2.368Tin........................................... 0.045 0.026------------------------------------------------------------------------
(g) Tin hydroxide supernatant from scrap.
PSES for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of tin
metal recovered from
scrap
--------------Lead.......................................... 15.580 7.233Cyanide (total)............................... 11.130 4.451Fluoride...................................... 1,947.000 1,107.000Tin........................................... 21.140 12.240------------------------------------------------------------------------
(h) Tin hydroxide supernatant from plating solutions and sludges.
PSES for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of tin
metal recovered from
plating solutions and
sludges
--------------Lead.......................................... 32.20 14.95Cyanide (total)............................... 23.00 9.20Fluoride...................................... 4,025.00 2,289.00Tin........................................... 43.70 25.30------------------------------------------------------------------------
(i) Tin hydroxide filtrate.
PSES for the Secondary Tin Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of tin
metal produced
--------------Lead.......................................... 7.012 3.256Cyanide (total)............................... 5.009 2.004Fluoride...................................... 876.500 498.400Tin........................................... 9.517 5.510------------------------------------------------------------------------