Any new source subject to this subpart must achieve the following new source performance standards (NSPS):
(a) Rolling spent neat oils--subpart H--NSPS. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc rolled with emulsions
---------------------------Chromium.................................... 0.0005 0.0002Copper...................................... 0.002 0.0009Cyanide..................................... 0.0003 0.0001Zinc........................................ 0.002 0.0006Oil and grease.............................. 0.014 0.014TSS......................................... 0.021 0.017pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(c) Rolling contact cooling water.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc rolled with contact
cooling water
---------------------------Chromium.................................... 0.020 0.009Copper...................................... 0.069 0.037Cyanide..................................... 0.011 0.004Zinc........................................ 0.055 0.023Oil and grease.............................. 0.536 0.536TSS......................................... 0.804 0.643pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(d) Drawing spent emulsions.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc drawn with emulsions
---------------------------Chromium.................................... 0.002 0.0009Copper...................................... 0.008 0.004Cyanide..................................... 0.001 0.0005Zinc........................................ 0.006 0.003Oil and grease.............................. 0.058 0.058TSS......................................... 0.087 0.070pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times
(e) Direct chill casting contact cooling water.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any one day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc cast by the direct
chill method
---------------------------Chromium.................................... 0.019 0.008Copper...................................... 0.065 0.031Cyanide..................................... 0.010 0.004Zinc........................................ 0.052 0.021Oil and grease.............................. 0.505 0.505TSS......................................... 0.758 0.606pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(f) Stationary casting contact cooling water--subpart H--NSPS. There shall be no discharge of process wastewater pollutants.
(g) Heat treatment contact cooling water.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc heat treated
---------------------------Chromium.................................... 0.029 0.012Copper...................................... 0.098 0.047Cyanide..................................... 0.016 0.006Zinc........................................ 0.078 0.032Oil and grease.............................. 0.763 0.763TSS......................................... 1.15 0.916pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(h) Surface treatment spent baths.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc surface treated
---------------------------Chromium.................................... 0.033 0.014Copper...................................... 0.114 0.054Cyanide..................................... 0.018 0.007Zinc........................................ 0.091 0.038Oil and grease.............................. 0.887 0.887TSS......................................... 1.33 1.07pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(i) Surface treatment rinse.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc surface treated
---------------------------Chromium.................................... 0.133 0.054Copper...................................... 0.459 0.219Cyanide..................................... 0.072 0.029Zinc........................................ 0.365 0.151Oil and grease.............................. 3.58 3.58TSS......................................... 5.37 4.30pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(j) Alkaline cleaning spent baths.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc alkaline cleaned
---------------------------Chromium.................................... 0.002 0.0006Copper...................................... 0.005 0.002Cyanide..................................... 0.0007 0.0003Zinc........................................ 0.004 0.002Oil and grease.............................. 0.036 0.036TSS......................................... 0.054 0.043pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(k) Alkaline cleaning rinse.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc alkaline cleaned
---------------------------Chromium.................................... 0.626 0.259Copper...................................... 2.17 1.03Cyanide..................................... 0.338 0.135Zinc........................................ 1.73 0.710Oil and grease.............................. 16.9 16.9TSS......................................... 25.4 20.3pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(l) Sawing or grinding spent emulsions.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc sawed or ground with
emulsions
---------------------------Chromium.................................... 0.009 0.004Copper...................................... 0.031 0.015Cyanide..................................... 0.005 0.002Zinc........................................ 0.025 0.010Oil and grease.............................. 0.235 0.235TSS......................................... 0.357 0.286pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\Within the range of 7.5 to 10.0 at all times.
(m) Electrocoating rinse.
Subpart H--NSPS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (pounds per
million off-pounds) of
zinc electrocoated
---------------------------Chromium.................................... 0.085 0.035Copper...................................... 0.293 0.140Cyanide..................................... 0.046 0.019Zinc........................................ 0.234 0.096Oil and grease.............................. 2.29 2.29TSS......................................... 3.44 2.75pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times
(n) Degreasing spent solvents--subpart H--NSPS. There shall be no discharge of process wastewater pollutants. [50 FR 34270, Aug. 23, 1985; 51 FR 2888, Jan. 22, 1986]