View all text of Subpart T [§ 421.220 - § 421.227]
§ 421.226 - 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 molybdenum and vanadium process wastewater introduced into a POTW shall not exceed the following values:
(a) Leach tailings.
PSNS for the Secondary Molybdenum and Vanadium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced | Arsenic | 27.120 | 12.097 | Chromium | 7.219 | 2.927 | Lead | 5.463 | 2.536 | Nickel | 10.731 | 7.219 | Iron | 23.413 | 11.902 | Molybdenum | [Reserved] | [Reserved] | Ammonia (as N) | 8078.000 | 3551.000 |
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(b) Molybdenum filtrate solvent extraction raffinate.
PSNS for the Secondary Molybdenum And Vanadium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of technical grade molybdenum plus vanadium plus pure grade molybdenum produced | Arsenic | 80.952 | 36.108 | Chromium | 21.548 | 8.736 | Lead | 16.306 | 7.571 | Nickel | 32.031 | 21.548 | Iron | 69.887 | 35.526 | Molybdenum | [Reserved] | [Reserved] | Ammonia (as N) | 24114.000 | 10600.000 |
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(c) Vanadium decomposition wet air pollution control.
PSNS for the Secondary Molybdenum and Vandadium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) vanadium produced by decomposition | Arsenic | 0.000 | 0.000 | Chromium | 0.000 | 0.000 | Lead | 0.000 | 0.000 | Nickel | 0.000 | 0.000 | Iron | 0.000 | 0.000 | Molybdenum | 0.000 | 0.000 | Ammonia (as N) | 0.000 | 0.000 |
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(d) Molybdenum drying wet air pollution control.
PSNS for the Secondary Molybdenum and Vandadium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of molybdenum produced | Arsenic | 0.000 | 0.000 | Chromium | 0.000 | 0.000 | Lead | 0.000 | 0.000 | Nickel | 0.000 | 0.000 | Iron | 0.000 | 0.000 | Molybdenum | 0.000 | 0.000 | Ammonia (as N) | 0.000 | 0.000 |
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(e) Pure Grade Molybdenum.
PSNS for the Secondary Molybdenum And Vanadium Subcategory
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | mg/kg (pounds per million pounds) of pure molybdenum produced | Arsenic | 32.359 | 14.434 | Chromium | 8.614 | 3.492 | Lead | 6.518 | 3.026 | Nickel | 12.804 | 8.614 | Iron | 27.936 | 14.201 | Molybdenum | [Reserved] | [Reserved] | Ammonia (as N) | 9638.000 | 4237.000 |
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