Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):
(a) Metal powder production atomization wastewater.
Subpart J--BAT------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
powder wet atomized
--------------------------Copper....................................... 9.58 5.04Cyanide...................................... 1.46 0.605Lead......................................... 2.12 1.01------------------------------------------------------------------------
(b) Sizing spent emulsions.
Subpart J--BAT------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) or
powder sized
---------------------------Copper...................................... 0.028 0.015Cyanide..................................... 0.004 0.002Lead........................................ 0.006 0.003------------------------------------------------------------------------
(c) Oil-resin impregnation wastewater--subpart J--BAT. There shall be no discharge of process wastewater pollutants.
(d) Steam treatment wet air pollution control scrubber blowdown.
Subpart J--BAT------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
powder metallurgy parts
steam treated
--------------------------Copper....................................... 1.51 0.792Cyanide...................................... 0.230 0.095Lead......................................... 0.333 0.159------------------------------------------------------------------------
(e) Tumbling, burnishing and cleaning wastewater.
Subpart J--BAT------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) or
powder metallurgy parts
tumbled, burnished, or
cleaned
---------------------------Copper...................................... 8.36 4.40Cyanide..................................... 1.28 0.528Lead........................................ 1.850 0.880------------------------------------------------------------------------
(f) Sawing or grinding spent neat oils--subpart J--BAT. There shall be no discharge of process wastewater pollutants.
(g) Sawing or grinding spent emulsions.
Subpart J--BAT------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
powder metallurgy parts
sawed or ground with
emulsions
----------------------------Copper..................................... 0.0035 0.018Cyanide.................................... 0.005 0.002Lead....................................... 0.008 0.004------------------------------------------------------------------------
(h) Sawing or grinding contact cooling water.
Subpart J--BAT------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
powder sawed or ground
with contact cooling
---------------------------Copper...................................... 3.08 1.62Cyanide..................................... 0.470 0.195Lead........................................ 0.681 0.324------------------------------------------------------------------------
(i) Hot pressing contact cooling water.
Subpart J--BAT------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
powder cooled after
pressing
---------------------------Copper...................................... 16.7 8.80Cyanide..................................... 2.55 1.06Lead........................................ 3.70 1.760------------------------------------------------------------------------
(j) Mixing wet air pollution control scrubber blowdown.
Subpart J--BAT------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
powder mixed
---------------------------Copper...................................... 15.0 7.90Cyanide..................................... 2.29 0.948Lead........................................ 3.32 1.58------------------------------------------------------------------------
(k) Degreasing spent solvents--subpart J--BAT. There shall be no discharge of process wastewater pollutants. [50 FR 34270, Aug. 23, 1985; 51 FR 2889, Jan. 22, 1986]