40 CFR 421.195 - Pretreatment standards for existing sources.

View all text of Subpart Q [§ 421.190 - § 421.197]

§ 421.195 - Pretreatment standards for existing sources.

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants 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 indium process wastewater introduced into a POTW must not exceed the following values:

(a) Displacement Supernatant.

PSES for the Secondary Indium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of indium metal produced		Cadmium	2.105	0.929	Lead	2.600	1.238	Zinc	9.037	3.776	Indium	2.724	1.114

(b) Spent Electrolyte.

PSES for the Secondary Indium Subcategory

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average		mg/kg (pounds per million pounds) of cathode indium produced		Cadmium	12.170	5.370	Lead	15.040	7.160	Zinc	52.270	21.840	Indium	15.750	6.444

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 421.195