40 CFR 421.224 - Standards of performance for new sources.

View all text of Subpart T [§ 421.220 - § 421.227]

§ 421.224 - Standards of performance for new sources.

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)

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

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)

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

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)

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

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)

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

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)

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]

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 (b), (c), (e), and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361; 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