40 CFR 421.226 - Pretreatment standards for new sources.

§ 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
(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
(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
(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
(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
[50 FR 38357, Sept. 20, 1985, as amended at 55 FR 31704, 31705 Aug. 3, 1990]

Title 40 published on 2014-07-01

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