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 precious metals and mercury process wastewater introduced into a POTW shall not exceed the following values:
(a) Smelter wet air pollution control.
PSNS for the Primary Precious Metals and Mercury Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/troy ounce of gold and
silver smelted
---------------Lead........................................ 0.364 0.169Mercury..................................... 0.195 0.078Silver...................................... 0.377 0.156Zinc........................................ 1.326 0.546Gold........................................ 0.130 ............------------------------------------------------------------------------
(b) Silver chloride reduction spent solution.
PSNS for the Primary Precious Metals and Mercury Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/troy ounce of silver
reduced in solution
---------------Lead........................................ 0.112 0.052Mercury..................................... 0.060 0.024Silver...................................... 0.116 0.048Zinc........................................ 0.408 0.168Gold........................................ 0.040 ............------------------------------------------------------------------------
(c) Electrolytic cells wet air pollution control.
PSNS for the Primary Precious Metals and Mercury Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/troy ounce of gold
refined electrolytically
--------------Lead.......................................... 5.544 2.574Mercury....................................... 2.970 1.188Silver........................................ 5.742 2.376Zinc.......................................... 20.200 8.316Gold.......................................... 1.980 ...........------------------------------------------------------------------------
(d) Electrolyte preparation wet air pollution control.
PSNS for the Primary Precious Metals and Mercury Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/troy ounce of silver
in electrolyte produced
--------------Lead.......................................... 0.014 0.007Mercury....................................... 0.008 0.003Silver........................................ 0.015 0.006Zinc.......................................... 0.051 0.021Gold.......................................... 0.005 ...........------------------------------------------------------------------------
(e) Calciner wet air pollution control.
PSNS for the Primary Precious Metals and Mercury Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
mercury condensed
--------------Lead.......................................... 6.160 2.860Mercury....................................... 3.300 1.320Silver........................................ 6.380 2.640Zinc.......................................... 22.440 9.240Gold.......................................... 2.200 ...........------------------------------------------------------------------------
(f) Calcine quench water.
PSNS for the Primary Precious Metals and Mercury Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
mercury condensed
--------------Lead.......................................... 4.928 2.288Mercury....................................... 2.640 1.056Silver........................................ 5.104 2.112Zinc.......................................... 17.950 7.392Gold.......................................... 1.760 ...........------------------------------------------------------------------------
(g) Calciner stack gas contact cooling water.
PSNS for the Primary Precious Metals and Mercury Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
mercury condensed
--------------Lead.......................................... 1.162 0.540Mercury....................................... 0.623 0.249Silver........................................ 1.204 0.498Zinc.......................................... 4.233 1,743Gold.......................................... 0.415 ...........------------------------------------------------------------------------
(h) Condenser blowdown.
PSNS for the Primary Precious Metals and Mercury Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
mercury condensed
--------------Lead.......................................... 3.864 1.794Mercury....................................... 2.070 0.828Silver........................................ 4.002 1.656Zinc.......................................... 14.080 5.656Gold.......................................... 1.380 ...........------------------------------------------------------------------------
(i) Mercury cleaning bath water.
PSNS for the Primary Precious Metals and Mercury Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
mercury condensed
--------------Lead.......................................... 0.392 0.182Mercury....................................... 0.210 0.084Silver........................................ 0.406 0.168
Zinc.......................................... 1.428 0.588Gold.......................................... 0.140 ...........------------------------------------------------------------------------ Sec. 421.257 [Reserved]