Real-time Monitoring

The USGS systematically collects all types of water data to better manage the water resources in each state.

Approved Mean Annual Discharge The stream flow monitoring station on the Chicago Sanitary and Ship Canal near Lemont, Illinois has been in operation since December 7, 2004. The site is operated in cooperation with the U.S. Army Corps of Engineers, Chicago District, Chicago, Illinois. Link to Approved Mean Annual Discharge Link to Real-Time Gage Data: 05536890

Real-time precipitation data is available in our map-driven application for the Central Midwest Water Science Center. You can use a map to select a precipitation-monitoring site and view precipitation amounts for the previous 3,6,12,24,48 hours and 7,14, and 30 days. A data table shows precipitation amounts at all sites within that state.

The Central Midwest Water Science Center collects real-time surface water, groundwater, water quality, precipitation, and other hydrologic data. Resource managers, farmers, fishermen, kayakers, land-use planners, engineers, environmentalists, and flood forecasters use this information to make critical decisions.