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Real-time Water Quality Sensor Locations and Data Links

This map shows the locations of real-time water quality sensors in monitored Duluth-Superior area trout streams, the St. Louis River Estuary, and the western arm of Lake Superior. Clicking a map symbol will take you to the real-time data via the agency's website.

Agencies managing, operating and maintaining these sensors include the Natural Resources Research Institute (NRRI) and Large Lakes Observatory (LLO) at the University of Minnesota-Duluth, the Lake Superior National Estuarine Research Reserve (NERR) at the University of Wisconsin-Superior, the US Geological Survey (USGS), the Western Lake Superior Sanitary District (WLSSD), and Lake Superior College (LSC).