Section NR 252.35 - Pretreatment standards for existing sources (PSES)(1) Except as provided in s. NR 252.04 and 40 CFR 403.7 and 403.13, any existing source subject to this subcategory that introduces process wastewater pollutants into a publicly owned treatment works shall comply with 40 CFR Part 403, and achieve the following pretreatment standards: Pollutant or pollutant property | PSES |
Milligrams per liter (mg/1) |
Maximum for any 1 day | Maximum for monthly average |
Sulfide | 24.0 | . . . . . . |
Total chromium | 12.0 | 8.0 |
pH | (1) | (1) |
1Not less than 7.0.
(2) Any existing source subject to this subcategory which processes less than 350 hides/day shall comply with s. NR 252.35(1), except that the total chromium limitations contained in sub. (1) do not apply. Wis. Admin. Code Department of Natural Resources § NR 252.35
Cr. Register, October, 1986, No. 370, eff. 11-1-86; am. Register, May, 2001, No. 545, eff. 6-1-01.