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) Raw material dust control.
BAT Limitations for the Primary Nickel and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
copper, nickel, and
cobalt in the crushed
raw material
--------------Copper........................................ 0.099 0.047Nickel........................................ 0.042 0.028Ammonia (as N)................................ 10.260 4.512Cobalt........................................ 0.011 0.005------------------------------------------------------------------------
(b) Nickel wash water.
BAT Limitations for the Primary Nickel and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
nickel powder washed
--------------Copper........................................ 0.043 0.021Nickel........................................ 0.019 0.013Ammonia (as N)................................ 4.515 1.985Cobalt........................................ 0.005 0.002------------------------------------------------------------------------
(c) Nickel reduction decant.
BAT Limitations for the Primary Nickel and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
nickel produced
--------------Copper........................................ 16.250 7.744Nickel........................................ 6.982 4.697Ammonia (as N)................................ 1,692.000 743.900Cobalt........................................ 1.777 0.889------------------------------------------------------------------------
(d) Cobalt reduction decant.
BAT Limitations for the Primary Nickel and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
cobalt produced
--------------Copper........................................ 27.390 13.050Nickel........................................ 11.770 7.917Ammonia (as N)................................ 2,852.000 1,254.000Cobalt........................................ 2.996 1.498------------------------------------------------------------------------ [50 FR 38359, Sept. 20, 1985; 50 FR 41144, Oct. 9, 1985]