Except as provided in 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/l) | ||
Maximum for any 1 day | Maximum for monthly average | |
Total chromium | 19.0 | 12.0 |
pH | (1) | (1) |
1Within the range 6.0 to 10.0.
Wis. Admin. Code Department of Natural Resources NR 252.75