- a) This Section applies only to effluent discharges from the Sanitary District of Decatur's Sewage Treatment Plant into the Sangamon River, Macon County, Illinois.
- b) The provisions of Section 304.120(c) do not apply to the discharges if the discharges do not exceed 20 mg/L of five-day biochemical oxygen demand (BOD5) and 25 mg/L of total suspended solids.
(Source: Amended at 47 Ill. Reg. 4601, effective March 23, 2023)