1. Regulations
  2. title 40
  3. chapter I-i30
  4. part 421
  5. subpart N
  6. § 421.146

View all text of Subpart N [§ 421.140 - § 421.147]

§ 421.146 - Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new 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 new sources. The mass of wastewater pollutants in primary antimony process wastewater introduced into a POTW shall not exceed the following values:

(a) Sodium Antimonate Autoclave Wastewater.

PSNS for the Primary Antimony Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of antimony contained in sodium antimonate product Antimony30.15013.440 Arsenic21.7209.687 Mercury2.3440.937

(b) Fouled Anolyte.

PSNS for the Primary Antimony Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of antimony metal produced by electrowinning Antimony30.15013.440 Arsenic21.7209.687 Mercury2.3440.937

(c) Cathode Antimony Washwater.

PSNS for the Primary Antimony Subcategory

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of antimony metal produced by electrowinning Antimony60.31026.870 Arsenic43.43019.370 Mercury4.6871.875

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 421.146