1. Regulations
  2. title 40
  3. chapter I-i31
  4. part 425
  5. subpart A
  6. § 425.15

View all text of Subpart A [§ 425.10 - § 425.16]

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

(a) Except as provided in § 425.04 and 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 achieve the following pretreatment standards:

Pollutant or pollutant property PSES Maximum for any 1 day Maximum for monthly average Milligrams per liter (mg/l) Sulfide24Total chromium128 pH( 1)( 1)

1 Not less than 7.0.

(b) Any existing source subject to this subpart which processes less than 275 hides/day shall comply with § 425.15(a), except that the total chromium limitations contained in § 425.15(a) do not apply.

[47 FR 52870, Nov. 23, 1982; 48 FR 30116, June 30, 1983, as amended at 53 FR 9182, Mar. 21, 1988; 61 FR 35685, July 8, 1996]

AUTHORITY: 33 U.S.C. 1311, 1314 (b), (c), (e) and (g), 1316 (b) and (c), 1317 (b) and (c), 1318 and 1361.

SOURCE: 47 FR 52870, Nov. 23, 1982, unless otherwise noted.

CITE AS: 40 CFR 425.15