Section NR 252.95 - Pretreatment standards for existing sources (PSES)(1) Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subcategory that introduces process wastewater pollutants into publicly owned treatment works shall 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) |
Total chromium | 19.0 | 12.0 |
pH | (1) | (1) |
1Within the range 6.0 to 10.0.
(2) Any existing source subject to this subcategory which processes less than 3,600 splits/day shall comply with sub. (1), except that the total chromium limitations contained in sub. (1) do not apply. Wis. Admin. Code Department of Natural Resources NR 252.95
Cr. Register, October, 1986, No. 370, eff. 11-1-86; am. (2), Register, May, 2001, No. 545, eff. 6-1-01.