§421.315. Pretreatment standards for existing sources.
40 C.F.R. § 421.315
Except as provided in 40 CFR 403.7, any existing source subject to this subpart which introduces polutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in secondary tungsten and cobalt process wastewater introduced into a POTW shall not exceed the following values:
Tungsten detergent wash and rinse.
Tungsten leaching acid.
Tungsten post-leaching wash and rinse.
Synthetic scheelite filtrate.
Tungsten carbide leaching wet air pollution control.
Tungsten carbide wash water.
Cobalt sludge leaching wet air pollution control.
Crystallization decant.
Acid wash decant.
Cobalt hydroxide filtrate.
Cobalt hydroxide filter cake wash.
Notes, amendments, and revision history
Amendments
[50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31717, 31718, Aug. 3, 1990]
Source
Source: 50 FR 38386, Sept. 20, 1985, unless otherwise noted.
Authority
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
Source: 49 FR 8790, Mar. 8, 1984, unless otherwise noted.
Amendments
[50 FR 38386, Sept. 20, 1985, as amended at 55 FR 31717, 31718, Aug. 3, 1990]