Except as provided in 40 CFR 125.30 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing BPT. The total suspended solids concentration may not be greater than 50 mg/l and the pH shall be within the range of 6.0 to 9.0.
Wis. Admin. Code Department of Natural Resources NR 297.101