View all text of Subpart AB [§ 421.300 - § 421.307]
§ 421.304 - Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Chlorination off-gas wet air pollution control.
NSPS Limitations for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of TiCl | Chromium (total) | 0.346 | 0.140 | Lead | 0.262 | 0.122 | Nickel | 0.515 | 0.346 | Titanium | 0.496 | 0.215 | Oil and grease | 9.360 | 9.360 | Total suspended solids | 14.040 | 11.230 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(b) Chlorination area-vent wet air pollution control.
NSPS Limitations for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of TiCl | Chromium (total) | 0.385 | 0.156 | Lead | 0.291 | 0.135 | Nickel | 0.572 | 0.385 | Titanium | 0.551 | 0.239 | Oil and grease | 10.400 | 10.400 | Total suspended solids | 15.600 | 12.480 | pH | ( 1) | ( 1) |
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1 Within the range of 7.0 to 10.0 at all times.
(c) TiCl
NSPS Limitations for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of TiCl | Chromium (total) | 0.069 | 0.028 | Lead | 0.052 | 0.024 | Nickel | 0.103 | 0.069 | Titanium | 0.099 | 0.043 | Oil and grease | 1.870 | 1.870 | Total suspended solids | 2.805 | 2.244 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(d) Reduction area wet air pollution control.
NSPS Limitations for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of titanium produced | Chromium (total) | 1.528 | 0.620 | Lead | 1.156 | 0.537 | Nickel | 2.272 | 1.528 | Titanium | 2.189 | 0.950 | Oil and grease | 41.300 | 41.300 | Total suspended solids | 61.950 | 49.560 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(e) Melt cell wet air pollution control.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of titanium produced | Chromium (total) | 0.787 | 0.319 | Lead | 0.595 | 0.276 | Nickel | 1.169 | 0.787 | Titanium | 1.127 | 0.489 | Oil and grease | 21.260 | 21.260 | Total suspended solids | 31.890 | 25.510 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(f) Chlorine liquefaction wet air pollution control.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pound per million pounds) of titanium produced | Chromium (total) | 0.000 | 0.000 | Lead | 0.000 | 0.000 | Nickel | 0.000 | 0.000 | Titanium | 0.000 | 0.000 | Oil and grease | 0.000 | 0.000 | Total suspended solids | 0.000 | 0.000 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(g) Sodium reduction container reconditioning wash.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pound per million pounds) of titanium produced | Chromium (total) | 0.474 | 0.192 | Lead | 0.359 | 0.167 | Nickel | 0.705 | 0.474 | Titanium | 0.679 | 0.295 | Oil and grease | 12.820 | 12.820 | Total suspended solids | 19.230 | 15.380 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(h) Chip crushing wet air pollution control.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pound per million pounds) of titanium produced | Chromium (total) | 0.000 | 0.000 | Lead | 0.000 | 0.000 | Nickel | 0.000 | 0.000 | Titanium | 0.000 | 0.000 | Oil and grease | 0.000 | 0.000 | Total suspended solids | 0.000 | 0.000 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(i) Acid leachate and rinse water.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pound per million pounds) of titanium produced | Chromium (total) | 4.381 | 1.776 | Lead | 3.315 | 1.539 | Nickel | 6.512 | 4.381 | Titanium | 6.275 | 2.723 | Oil and grease | 118.400 | 118.400 | Total suspended solids | 177.600 | 142.100 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(j) Sponge crushing and screening wet air pollution control.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of titanium produced | Chromium (total) | 0.000 | 0.000 | Lead | 0.000 | 0.000 | Nickel | 0.000 | 0.000 | Titanium | 0.000 | 0.000 | Oil and grease | 0.000 | 0.000 | Total suspended solids | 0.000 | 0.000 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(k) Acid pickle and wash water.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of titanium pickled | Chromium (total) | 0.023 | 0.009 | Lead | 0.017 | 0.008 | Nickel | 0.034 | 0.023 | Titanium | 0.032 | 0.014 | Oil and grease | 0.610 | 0.610 | Total suspended solids | 0.915 | 0.732 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(l) Scrap milling wet air pollution control.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of scrap milled | Chromium (total) | 0.000 | 0.000 | Lead | 0.000 | 0.000 | Nickel | 0.000 | 0.000 | Titanium | 0.000 | 0.000 | Oil and grease | 0.000 | 0.000 | Total suspended solids | 0.000 | 0.000 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(m) Scrap detergent wash water.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of scrap washed | Chromium (total) | 6.684 | 2.710 | Lead | 5.058 | 2.348 | Nickel | 9.935 | 6.684 | Titanium | 9.574 | 4.155 | Oil and grease | 180.600 | 180.600 | Total suspended solids | 271.000 | 216.000 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(n) Casting crucible wash water.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of titanium cast | Chromium (total) | 0.176 | 0.072 | Lead | 0.134 | 0.062 | Nickel | 0.262 | 0.176 | Titanium | 0.253 | 0.110 | Oil and grease | 4.770 | 4.770 | Total suspended solids | 7.155 | 5.724 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.
(o) Casting contact cooling water.
NSPS for the Primary and Secondary Titanium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of titanium cast | Chromium (total) | 27.000 | 10.950 | Lead | 20.430 | 9.486 | Nickel | 40.140 | 27.000 | Titanium | 38.680 | 16.780 | Oil and grease | 729.700 | 729.700 | Total suspended solids | 1,095.000 | 875.700 | pH | ( 1) | ( 1) |
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1 Within the range of 7.5 to 10.0 at all times.