Section 304.210  Alton Wastewater Treatment Plant Discharges

The discharge from the City of Alton's sewage treatment works outfall 001 sewer located on Wood River Creek, approximately 1,000 feet from its confluence with the Mississippi River, is not subject to Section 304.120(c).  Instead, the discharge must not exceed the following limitations:  20 milligrams per liter for five-day biochemical oxygen demand (BOD₅) and 25 milligrams per liter for total suspended solids.  Compliance must be determined consistent with Section 304.120(e).

(Source:  Amended at 47 Ill. Reg. 4601, effective March 23, 2023)