Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Leach tailings.
NSPS for the Secondary Molybdenum and Vanadium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
technical grade
molybdenum plus vanadium
plus pure grade
molybdenum produced
-------------------------Arsenic....................................... 27.120 12.097Chromium...................................... 7.219 2.927Lead.......................................... 5.463 2.536Nickel........................................ 10.731 7.219Iron.......................................... 23.413 11.902Molybdenum.................................... [Reserved] [Reserved]Ammonia (as N)................................ 8078.000 3551.000Total Suspended Solids........................ 292.665 234.132
pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(b) Molybdenum filtrate solvent extraction raffinate.
NSPS for the Secondary Molybdenum and Vanadium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
technical grade
molybdenum plus vanadium
plus pure grade
molybdenum produced
-------------------------Arsenic....................................... 80.952 36.108Chromium...................................... 21.548 8.736Lead.......................................... 16.306 7.571Nickel........................................ 32.031 21.548Iron.......................................... 69.887 35.526Molybdenum.................................... [Reserved] [Reserved]Ammonia (as N)................................ 24114.000 10600.000Total Suspended Solids........................ 873.585 698.868
pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(c) Vanadium decomposition wet air pollution control.
NSPS for the Secondary Molybdenum and Vanadium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
molybdenum and vanadium
produced
--------------Arsenic....................................... 0.000 0.000Chromium...................................... 0.000 0.000Lead.......................................... 0.000 0.000Nickel........................................ 0.000 0.000Iron.......................................... 0.000 0.000Molybdenum.................................... 0.000 0.000Ammonia (as N)................................ 0.000 0.000
Total suspended solids........................ 0.000 0.000pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(d) Molybdenum drying wet air pollution control.
NSPS for the Secondary Molybdenum and Vanadium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
molybdenum and vanadium
produced
--------------Arsenic....................................... 0.000 0.000Chromium...................................... 0.000 0.000Lead.......................................... 0.000 0.000Nickel........................................ 0.000 0.000Iron.......................................... 0.000 0.000Molybdenum.................................... 0.000 0.000Ammonia (as N)................................ 0.000 0.000Total suspended solids........................ 0.000 0.000pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(e) Pure Grade Molybdenum.
NSPS for the Secondary Molybdenum and Vanadium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of pure
molybdenum produced
-------------------------Arsenic....................................... 32.359 14.434Chromium...................................... 8.614 3.492Lead.......................................... 6.518 3.026Nickel........................................ 12.804 8.614Iron.......................................... 27.936 14.201Molybdenum.................................... [Reserved] [Reserved]Ammonia (as N)................................ 9638.000 4237.000Total Suspended Solids........................ 349.200 279.360pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times. [50 FR 38357, Sept. 20, 1985, as amended at 55 FR 31704, Aug. 3, 1990] Sec. 421.225 [Reserved]