Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Tungsten detergent wash and rinse.
NSPS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten scrap washed
--------------Copper........................................ 0.250 0.119Nickel........................................ 0.107 0.072Ammonia (as N)................................ 25.990 11.430Cobalt........................................ 0.538 0.236Tungsten...................................... 0.679 0.302Oil and grease................................ 1.950 1.950Total suspended solids........................ 2.925 2.340pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(b) Tungsten leaching acid.
NSPS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten produced
--------------Copper........................................ 3.291 1.569Nickel........................................ 1.414 0.951Ammonia (as N)................................ 342.700 150.700Cobalt........................................ 7.096 3.111Tungsten...................................... 8.947 3.985Oil and grease................................ 25.710 25.710Total suspended solids........................ 38.570 30.850pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(c) Tungsten post-leaching wash and rinse.
NSPS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten produced
--------------Copper........................................ 6.583 3.137Nickel........................................ 2.829 1.903Ammonia (as N)................................ 685.600 301.400Tungsten...................................... 17.900 7.972Cobalt........................................ 14.194 6.223Oil and grease................................ 51.430 51.430Total suspended solids........................ 77.150 61.720pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(d) Synthetic scheelite filtrate.
NSPS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
synthetic scheelite
produced
--------------Copper........................................ 21.330 10.170Nickel........................................ 9.164 6.165Ammonia (as N)................................ 2,221.000 976.300Cobalt........................................ 45.984 20.160Tungsten...................................... 57.980 25.820Oil and grease................................ 166.600 166.600Total suspended solids........................ 249.900 199.900pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(e) Tungsten carbide leaching wet air pollution control.
NSPS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten carbide scrap
leached
--------------Copper........................................ 2.241 1.068Nickel........................................ 0.963 0.648Ammonia (as N)................................ 233.400 102.600Cobalt........................................ 4.833 2.119Tungsten...................................... 6.093 2.714Oil and grease................................ 17.510 17.510Total suspended solids........................ 26.270 21.010pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(f) Tungsten carbide wash water.
NSPS for the Secondary Tungsten and Cobalt Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten carbide
produced
--------------Copper........................................ 10.670 5.083Nickel........................................ 4.583 3.083Ammonia (as N)................................ 1,111.000 488.300Cobalt........................................ 22.999 10.083Tungsten...................................... 29.000 12.920Oil and grease................................ 83.330 83.330Total suspended solids........................ 125.000 100.000pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(g) Cobalt sludge leaching wet air pollution control.
NSPS for the Secondary Tungsten 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 from
cobalt sludge
--------------Copper........................................ 45.80 21.83Nickel........................................ 19.68 13.24Ammonia (as N)................................ 4,770.00 2,097.00Cobalt........................................ 98.756 43.295Tungsten...................................... 124.50 55.46Oil and grease................................ 357.80 357.80Total suspended solids........................ 536.70 429.40pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(h) Crystallization decant.
NSPS for the Secondary Tungsten 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........................................ 53.310 25.410Nickel........................................ 22.910 15.410Ammonia (as N)................................ 5,552.000 2,441.000Cobalt........................................ 114.954 50.397Tungsten...................................... 144.900 64.560Oil and grease................................ 416.500 416.500Total suspended solids........................ 624.800 499.800pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(i) Acid wash decant.
NSPS for the Secondary Tungsten 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........................................ 24.400 11.630Nickel........................................ 10.490 7.053Ammonia (as N)................................ 2,541.000 1,117.000Cobalt........................................ 52.611 23.065Tungsten...................................... 66.340 29.550Oil and grease................................ 190.600 190.600Total suspended solids........................ 285.900 228.700pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(j) Cobalt hydroxide filtrate.
NSPS for the Secondary Tungsten 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........................................ 72.510 34.560Nickel........................................ 31.160 20.960Ammonia (as N)................................ 7,551.000 3,320.000Cobalt........................................ 156.346 68.543Tungsten...................................... 197.100 87.800Oil and grease................................ 566.500 566.500Total suspended solids........................ 849.700 679.800pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(k) Cobalt hydroxide filter cake wash.
NSPS for the Secondary Tungsten 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........................................ 139.600 66.510Nickel........................................ 59.970 40.340Ammonia (as N)................................ 14,530.000 6,389.000Cobalt........................................ 300.094 131.932Tungsten...................................... 379.400 169.000Oil and grease................................ 1,090.000 1,090.000Total suspended solids........................ 1,636,000 1,308.000pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times. [50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31715, 31716, Aug. 3, 1990]