40 CFR 421.94 - Standards of performance for new sources.

View all text of Subpart I [§ 421.90 - § 421.97]

§ 421.94 - Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards:

Subpart I—Metallurgical Acid Plant—NSPS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per/million pounds) of 100 pct sulfuric acid capacity		Arsenic	3.550	1.584	Cadmium	0.511	0.204	Copper	3.269	1.558	Lead	0.715	0.332	Zinc	2.605	1.073	Fluoride 1	89.390	50.820	Molybdenum 1	[Reserved]	[Reserved].	Total suspended solids	38.310	30.650	pH	( 2)	( 2)

1 For Molybdenum acid plants only.

2 Within the range of 7.5 to 10.0 at all times.

[50 FR 38343, Sept. 20, 1985, as amended at 55 FR 31697, 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 421.94