40 CFR 421.223 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

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

§ 421.223 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:

(a) Leach Tailings.

BAT Limitations 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.

BAT Limitations 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	Chronium	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.

BAT Limitations 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 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.

BAT Limitations 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 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.

BAT Limitations 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 31703, 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 421.223