Any new source subject to this subpart must achieve the following new source performance standards (NSPS). The mass of pollutants in the metal powder process wastewater shall not exceed the following values:
(a) Metal powder production atom-ization wastewater.
Subpart J--NSPS------------------------------------------------------------------------
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 1.01Oil and grease.............................. 101 60.5TSS......................................... 207 98.3pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(b) Sizing spent emulsions.
Subpart J--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
powder sized
---------------------------Copper...................................... 0.028 0.015Cyanide..................................... 0.004 0.002Lead........................................ 0.006 0.003Oil and grease.............................. 0.292 0.175TSS......................................... 0.599 0.285pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(c) Oil-resin impregnation wastewater--subpart J--NSPS. There shall be no discharge of process wastewater pollutants.
(d) Steam treatment wet air pollution control scrubber blowdown.
Subpart J--NSPS------------------------------------------------------------------------
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...................................... 0.151 0.079Cyanide..................................... 0.023 0.010Lead........................................ 0.033 0.016Oil and grease.............................. 1.59 0.951TSS......................................... 3.25 1.55pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(e) Tumbling, burnishing and cleaning wastewater.
Subpart J--NSPS------------------------------------------------------------------------
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
tumbled, burnished, or
cleaned
---------------------------Copper...................................... 0.836 0.440Cyanide..................................... 0.128 0.053Lead........................................ 0.185 0.088Oil and grease.............................. 8.80 5.28TSS......................................... 18.1 8.58pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(f) Sawing or grinding spent neat oils--subpart J--NSPS. There shall be no discharge of process wastewater pollutants.
(g) Sawing or grinding spent emulsions.
Subpart J--NSPS------------------------------------------------------------------------
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...................................... 0.035 0.018Cyanide..................................... 0.005 0.002Lead........................................ 0.008 0.004Oil and grease.............................. 0.362 0.217TSS......................................... 0.742 0.353pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(h) Sawing or grinding contact cooling waterr.
Subpart J--NSPS------------------------------------------------------------------------
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 water
---------------------------Copper...................................... 3.08 1.62Cyanide..................................... 0.470 0.195Lead........................................ 0.681 0.324Oil and grease.............................. 32.4 19.5TSS......................................... 66.4 31.6pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(i) Hot pressing contact cooling water.
Subpart J--NSPS------------------------------------------------------------------------
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...................................... 1.67 0.880Cyanide..................................... 0.255 0.106Lead........................................ 0.370 0.176Oil and grease.............................. 17.6 10.6TSS......................................... 36.1 17.2pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(j) Mixing wet air pollution control scrubber blowdown.
Subpart J--NSPS------------------------------------------------------------------------
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 1.58Oil and grease.............................. 158 94.8TSS......................................... 324 154pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(k) Degreasing spent solvents--subpart J--NSPS. There shall be no discharge of process wastewater pollutants. [50 FR 34270, Aug. 23, 1985; 51 FR 2889, Jan. 22, 1986]