Monitoring Sites

Welcome to
Great Lakes Monitoring!

This site provides easy access to environmental monitoring data collected by various sources throughout the Great Lakes.

The map to the right displays all the monitoring sites and associated parameters available on this website. To view data, click on a site of interest. A box will pop up displaying current values for the parameters at that site. It also will include the option to view data in a graph or download raw data.


Last updated 5/13/2012. For more information, contact or 217-333-6444.