The pretreatment standards for discharges to publicly owned treatment works from sources subject to the provisions of this chapter shall be as set forth in ch. NR 211.
Wis. Admin. Code Department of Natural Resources NR 225.13
The suspended solids limitations and standards for subcategories (6) through (8) in table 2 applicable to discharges from medium and from large size facilities are identified respectively by the letters M and L appearing in the size column. The BOD limitations and standards for subcategories (6) through (8) are applicable to discharges from both medium and large size facilities. Limitations and standards for subcategories (1) through (5) are applicable regardless of facility size.