Standards of performance for new sources.

  1. Law
  2. CFR 40
  3. Protection of Environment
  4. Environmental Protection Agency
  5. Effluent Guidelines and Standards
  6. Nonferrous Metals Manufacturing Point Source Category
  7. Primary Tungsten Subcategory
  8. Standards of performance for new sources.

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§ 421.104 Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:

(a) Subpart J - Tungstic Acid Rinse.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungstic acid (as W) produced
Lead 11.490 5.333
Zinc 41.850 17.230
Ammonia (as N) 5,469.000 2,404.000
Total suspended solids 615.400 492.300
pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(b) Subpart J - Acid Leach Wet Air Pollution

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungstic acid (as W) produced
Lead 1.003 0.466
Zinc 3.653 1.504
Ammonia (as N) 477.400 209.900
Total suspended solids 53.720 42.970
pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(c) Subpart J - Alkali Leach Wash.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of sodium tungstate (as W) produced
Lead 0.000 0.000
Zinc 0.000 0.000
Ammonia (as N) 0.000 0.000
Total suspended solids 0.000 0.000
pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(d) Subpart J - Alkali Leach Wash Condensate.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of sodium tungstate (as W) produced
Lead 5.372 2.494
Zinc 19.570 8.057
Ammonia (as N) 2,557.000 1,124.000
Total suspended solids 287.800 229.600
pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(e) Subpart J - Ion Exchange Raffinate (Commingled With Other Process or Nonprocess Waters).

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of ammonium tungstate (as W) produced
Lead 24.780 11.500
Zinc 90.240 37.160
Ammonia (as N) 11,790.000 5,185.000
Total suspended solids 1,327.000 1,062.000
pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(f) Subpart J - Ion Exchange Raffinate (Not Commingled With Other Process or Nonprocess Waters).

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of ammonium tungstate (as W) produced
Lead 24.780 11.500
Zinc 90.240 37.160
Ammonia (as N) (2) 11,790.000 5,185.000
Total suspended solids 1,327.000 1,062.000
pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

2 The new source standard for this pollutant does not apply if (a) the mother liquor feed to the ion exchange process or the raffinate from the ion exchange process contains sulfates at concentrations exceeding 1000 mg/l; (b) this mother liquor or raffinate is treated by ammonia steam stripping; and (c) such mother liquor or raffinate is not commingled with any other process or nonprocess waters prior to steam stripping for ammonia removal.

(g) Subpart J - Calcium Tungstate Precipitate Wash.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of calcium tungstate (as W) produced
Lead 20.670 9.594
Zinc 75.280 31.000
Ammonia (as N) 9,838.000 4,325.000
Total suspended solids 1,107.000 885.600
pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(h) Subpart J - Crystallization and Drying of Ammonium Paratungstate.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of ammonium paratungstate (as W) produced
Lead 0.000 0.000
Zinc 0.000 0.000
Ammonia (as N) 0.000 0.000
Total suspended solids 0.000 0.000
pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(i) Subpart J - Ammonium Paratungstate Conversion to Oxides Wet Air Pollution Control.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pound per million pounds) of tungstic oxide (as W) produced
Lead 0.773 0.359
Zinc 2.817 1.160
Ammonia (as N) 368.200 161.900
Total suspended solids 41.430 33.150
pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(j) Subpart J - Ammonium Paratungstate Conversion to Oxides Water of Formation.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungstic oxide (as W) produced
Lead 0.018 0.008
Zinc 0.064 0.026
Ammonia (as N) 8.398 3.692
Total suspended solids 0.945 0.756
pH (1) (1)

1 Within the range of 7.0 to 10.0 at all times.

(k) Subpart J - Reduction to Tungsten Wet Air Pollution Control.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten metal produced
Lead .862 .400
Zinc 3.142 1.294
Ammonia (as N) 410.600 180.500
Total suspended solids 46.200 36.960
pH (1) (1)

1Within the range of 7.0 to 10.0 at all times.

(l) Subpart J - Reduction to Tungsten Water of Formation.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten metal produced
Lead .137 .064
Zinc .499 .205
Ammonia (as N) 65.190 28.660
Total suspended solids 7.335 5.868
pH (1) (1)

1Within the range of 7.0 to 10.0 at all times.

(m) Subpart J - Tungsten Power Acid Leach and Wash.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten metal produced
Lead .672 .312
Zinc 2.448 1.008
Ammonia (as N) 319.900 140.700
Total suspended solids 36.000 28.800
pH (1) (1)

1Within the range of 7.0 to 10.0 at all times.

(n) Subpart J - Molybdenum Sulfide Precipitation Wet Air Pollution Control.

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NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tungsten metal produced
Lead .00 .000
Zinc .000 .000
Ammonia (as N) .000 .000
Total suspended solids .000 .000
pH (1) (1)

1Within the range of 7.0 to 10.0 at all times.

[49 FR 8812, Mar. 8, 1984, as amended at 53 FR 1709, Jan. 21, 1988]


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