40 CFR 421.316 - Pretreatment standards for new sources.

§ 421.316 Pretreatment standards for new sources.
Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in secondary tungsten and cobalt process wastewater introduced into a POTW shall not exceed the following values:
(a) Tungsten detergent wash and rinse.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten scrap washed
Copper 0.250 0.119
Nickel 0.107 0.072
Ammonia (as N) 25.990 11.430
Cobalt 0.538 0.236
Tungsten 0.679 0.302
(b) Tungsten leaching acid.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten produced
Copper 3.291 1.569
Nickel 1.414 0.951
Ammonia (as N) 342.700 150.700
Cobalt 7.096 3.111
Tungsten 8.947 3.985
(c) Tungsten post-leaching wash and rinse.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten produced
Copper 6.583 3.137
Nickel 2.829 1.903
Ammonia (as N) 685.600 301.400
Cobalt 14.194 6.223
Tungsten 17.900 7.792
(d) Synthetic scheelite filtrate.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of synthetic scheelite produced
Copper 21.330 10.170
Nickel 9.164 6.165
Ammonia (as N) 2,221.000 976.300
Cobalt 45.984 20.160
Tungsten 57.980 25.820
(e) Tungsten carbide leaching wet air pollution control.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten carbide scrap leached
Copper 2.241 1.068
Nickel 0.963 0.648
Ammonia (as N) 233.400 102.600
Cobalt 4.833 2.119
Tungsten 6.093 2.714
(f) Tungsten carbide wash water.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten carbide produced
Copper 10.670 5.083
Nickel 4.583 3.083
Ammonia (as N) 1,111.000 488.300
Cobalt 22.999 10.083
Tungsten 29.000 12.920
(g) Cobalt sludge leaching wet air pollution control.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of cobalt produced from cobalt sludge
Copper 45.800 21.830
Nickel 19.680 13.240
Ammonia (as N) 4,770.000 2,097.000
Cobalt 98.756 43.295
Tungsten 124.500 55.460
(h) Crystallization decant.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of cobalt produced
Copper 53.310 25.410
Nickel 22.910 15.410
Ammonia (as N) 5,552,000 2,441.000
Cobalt 114.954 50.397
Tungsten 144.900 64.560
(i) Acid wash decant.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of cobalt produced
Copper 24.400 11.630
Nickel 10.490 7.053
Ammonia (as N) 2,541.000 1,117.000
Cobalt 52.611 23.065
Tungsten 66.340 29.550
(j) Cobalt hydroxide filtrate.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of cobalt produced
Copper 72.510 34.560
Nickel 31.160 20.960
Ammonia (as N) 7,551.000 3,320.000
Cobalt 156.346 68.543
Tungsten 197.100 87.800
(k) Cobalt hydroxide filter cake wash.
PSNS for the Secondary Tungsten and Cobalt Subcategory
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of cobalt produced
Copper 139.600 66.510
Nickel 59.970 40.430
Ammonia (as N) 14,530.000 6,389.000
Cobalt 300.094 131.932
Tungsten 379.400 169.000
[50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31718, 31719, Aug. 3, 1990]

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