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 Zirconium and Hafnium Subcategory
  8. Standards of performance for new sources.

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§ 421.334 Standards of performance for new sources.

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

(a) Sand drying wet air pollution control.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced
Chromium (total) 0.210 0.085
Cyanide (total) 0.114 0.045
Lead 0.159 0.074
Nickel 0.312 0.210
Ammonia (as N) 75.710 33.280
Total suspended solids 8.520 6.816
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(b) Sand chlorination off-gas wet air pollution control.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced
Chromium (total) 16.080 6.521
Cyanide (total) 8.694 3.478
Lead 12.170 5.651
Nickel 23.910 16.080
Ammonia (as N) 5,795.000 2,547.000
Total suspended solids 652.100 521.000
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(c) Sand chlorination area-vent wet air pollution control.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced
Chromium (total) 3.154 1.279
Cyanide (total) 1.705 0.682
Lead 2.387 1.108
Nickel 4.688 3.154
Ammonia (as N) 1,136.000 499.500
Total suspended solids 127.900 102.300
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(d) SiC14 purification wet air pollution control.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced
Chromium (total) 2.774 1.125
Cyanide (total) 1.500 0.600
Lead 2.099 0.975
Nickel 4.124 2.774
Ammonia (as N) 999.500 439.400
Total suspended solids 112.500 89.980
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(e) Feed makeup wet air pollution control.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced
Chromium (total) 2.103 0.852
Cyanide (total) 1.137 0.455
Lead 1.591 0.739
Nickel 3.126 2.103
Ammonia (as N) 757.500 333.000
Total suspended solids 85.250 68.200
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(f) Iron extraction (MIBK) steam stripper bottoms.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced
Chromium (total) 0.830 0.337
Cyanide (total) 0.449 0.180
Lead 0.628 0.292
Nickel 1.234 0.830
Ammonia (as N) 299.100 131.500
Total suspended solids 33.660 26.930
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(g) Zirconium filtrate.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced
Chromium (total) 14.350 5.819
Cyanide (total) 7.758 3.103
Lead 10.860 5.043
Nickel 21.330 14.350
Ammonia (as N) 5,171.000 2,273.000
Total suspended solids 581.900 465.500
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(h) Hafnium filtrate.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced
Chromium (total) 0.000 0.000
Cyanide (total) 0.000 0.000
Lead 0.000 0.000
Nickel 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 7.5 to 10.0 at all times.

(i) Calcining caustic wet air pollution control.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium dioxide and hafnium dioxide produced
Chromium (total) 3.329 1.350
Cyanide (total) 1.799 0.720
Lead 2.519 1.170
Nickel 4.948 3.329
Ammonia (as N) 1,199.000 527.200
Total suspended solids 135.000 108.000
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(j) Pure chlorination wet air pollution control.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium and hafnium produced
Chromium (total) 14.180 5.748
Cyanide (total) 7.663 3.065
Lead 10.730 4.981
Nickel 21.070 14.180
Ammonia (as N) 5,108.000 2,245.000
Total suspended solids 574.800 459.800
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(k) Reduction area-vent wet air pollution control.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium and hafnium produced
Chromium (total) 1.364 0.553
Cyanide (total) 0.737 0.295
Lead 1.032 0.479
Nickel 2.027 1.364
Ammonia (as N) 491.300 216.000
Total suspended solids 55.290 44.230
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(l) Magnesium recovery off-gas wet air pollution control.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium and hafnium produced
Chromium (total) 7.671 3.110
Cyanide (total) 4.147 1.659
Lead 5.805 2.695
Nickel 11.400 7.671
Ammonia (as N) 2,764.000 1,215.000
Total suspended solids 404.300 248.800
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(m) Magnesium recovery area-vent wet air pollution control.

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NSPS Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium and hafnium produced
Chromium (total) 4.262 1.728
Cyanide (total) 2.304 0.921
Lead 3.225 1.497
Nickel 6.335 4.262
Ammonia (as N) 1,535.000 675.000
Total suspended solids 172.800 138.200
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(n) Zirconium chip crushing west air pollution control.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium and hafnium produced
Chromium (total) 0.000 0.000
Cyanide (total) 0.000 0.000
Lead 0.000 0.000
Nickel 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 7.5 to 10.0 at all times.

(o) Acid leachate from zirconium metal production.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of pure zirconium produced
Chromium (total) 10.900 4.420
Cyanide (total) 5.893 2.357
Lead 8.250 3.831
Nickel 16.210 10.900
Ammonia (as N) 3,928.000 1,674.000
Total suspended solids 442.000 353.600
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(p) Acid leachate from zirconium alloy production.

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NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium contained in alloys produced
Chromium (total) 5.835 2.366
Cyanide (total) 3.154 1.262
Lead 4.416 2.050
Nickel 8.674 5.835
Ammonia (as N) 2,102.000 895.800
Total suspended solids 236.600 189.300
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(q) Leaching rinse water from zirconium metal production.

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NSPS Limitations for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of pure zirconium produced
Chromium (total) 21.810 8.840
Cyanide (total) 11.790 4.715
Lead 16.500 7.661
Nickel 32.410 21.810
Ammonia (as N) 7,856.000 3,453.000
Total suspended solids 884.000 707.200
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.

(r) Leaching rinse water from zirconium alloy production.

Expand Table

NSPS for the Primary Zirconium and Hafnium Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of zirconium contained in alloys produced
Chromium (total) 0.292 0.118
Cyanide (total) 0.158 0.063
Lead 0.221 0.103
Nickel 0.434 0.292
Ammonia (as N) 105.200 46.240
Total suspended solids 11.840 9.468
pH (1) (1)

1 Within the range of 7.5 to 10.0 at all times.


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