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The Upper Midwest Water Science Center collects, analyzes, and distributes data on a variety of water-related issues and resources. Much of our data is publicly available through the USGS National Water Information System (NWIS):
Surface water: MI • MN • WIGroundwater: MI • MN • WIWater quality: MI • MN • WIWater use: MI • MN • WI
NWIS site inventory: MI • MN • WI
USGS Flood Inundation Maps provide information that is critical for flood-response activities, such as evacuations and road closures, as well as for post-flood recovery efforts.
StreamStats provides analytical tools for water-resources planning, management, engineering, and design purposes. The map-based interface can be used to delineate drainage areas, get basin characteristics and estimates of flow statistics, and more.
Explore the sites below to access other USGS water data tools and repositories: