Pretreatment standards for existing sources (PSES).

  1. Law
  2. CFR 40
  3. Protection of Environment
  4. Environmental Protection Agency
  5. Effluent Guidelines and Standards
  6. Leather Tanning and Finishing Point Source Category
  7. Retan-Wet Finish-Splits Subcategory
  8. Pretreatment standards for existing sources (PSES).

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§ 425.95 Pretreatment standards for existing sources (PSES).

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

Pollutant or pollutant property PSES
Maximum for any 1 day Maximum for monthly average
Milligrams per liter (mg/l)
Total Chromium 19 12
pH (1) (1)

1 Within the range 6.0 to 10.0.

(b) Any existing source subject to this subpart which processes less than 3,600 splits/day shall comply with § 425.95(a), except that the total chromium limitations contained in § 425.95(a) do not apply.

[47 FR 52870, Nov. 23, 1982; 48 FR 30117, June 30, 1983, as amended at 53 FR 9183, Mar. 21, 1988]


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