1. Regulations
  2. title 40
  3. chapter I-i31
  4. part 429
  5. subpart H
  6. § 429.95

View all text of Subpart H [§ 429.90 - § 429.96]

§ 429.95 - Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces process wastewater pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and meet the following pretreatment standards for existing sources (PSES):

Subpart H

[PSES Effluent Limitations]

Pollutant or pollutant property Maximum for any 1 day (mg/l) Oil and grease100 Copper5 Chromium4 Arsenic4
In cases where POTWs find it necessary to impose mass limitations, the following equivalent mass limitations are provided as guidance.

Subpart H

[PSES Effluent Limitations; grams per cu m of production]

Pollutant or pollutant property Maximum for any 1 day Oil and grease20.5 Copper.62 Chromium.41 Arsenic.41

AUTHORITY: Secs. 301, 304(b), (c), (e), and (g), 306(b) and (c), 307(a)(b) and (c) 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) (the “Act”); 33 U.S.C. 1311, 1314(b), (c), (e), and (g), 1316(b) and (c), 1317(b) and (c), and 1361; 86 Stat. 815, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 46 FR 8285, Jan. 26, 1981, unless otherwise noted.

CITE AS: 40 CFR 429.95