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
| 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
|
| Total Suspended Solids | 292.665 | 234.132
|
| pH | (
1) | (
1)
|
(b) Molybdenum filtrate solvent extraction raffinate.
NSPS 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
|
| Total Suspended Solids | 873.585 | 698.868
|
| pH | (
1) | (
1)
|
(c) Vanadium decomposition wet air pollution control.
NSPS 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 molybdenum and vanadium 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
|
| Total suspended solids | 0.000 | 0.000
|
| pH | (
1) | (
1)
|
(d) Molybdenum drying wet air pollution control.
NSPS 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 molybdenum and vanadium 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
|
| Total suspended solids | 0.000 | 0.000
|
| pH | (
1) | (
1)
|
(e) Pure Grade Molybdenum.
NSPS 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
|
| Total Suspended Solids | 349.200 | 279.360
|
| pH | (
1) | (
1)
|
authority: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307 (b) and (c), 308 and 501 of the Clean Water Act (the Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) and the Water Quality Act of 1987 (the “Act”);
33 U.S.C. 1311,
1314,
c,
e,
and, 1316 (b) and
c, 1317 (b) and
c,
1318; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4
source: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.
cite as: 40 CFR 421.224