40 CFR 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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.