How does Combined Sewer Overflow (CSO) affect the water?
The Metropolitan Water Reclamation District of Greater Chicago website displays a color coded map of Combined Sewer Overflow events on the entire Chicago Area waterways, including the North Shore Channel. This map is updated daily and graphically shows when the channel is unsafe for limited contact recreation use. These activities include recreational boating (kayaking, canoeing, jet skiing) and any limited contact incident to shoreline activity, such as wading and fishing.