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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:
| 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 |
| 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 |
| 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 |
|
Code of Federal Regulations
562
|
||
| 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 |
| 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 |
| 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 |
[50 FR 38357, Sept. 20, 1985, as amended at 55 FR 31704, 31705 Aug. 3, 1990]
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