Water Resources and Hydrology: Regional, State & Federal Government Hydrological Resources

State of Michigan Department of Environmental Quality data, watersheds and reports.

Ohio Department of Natural Resources water resources portal.

Indiana Department of Natural Resources water resources portal.

Part of the National Park Service, the Great Lakes Research and Eduction Center combines resources for the region.

U.S. Geological Survey Water Resources division for maps, data and project reports

Natural Resources Canada is the Canadian division similar to USGS that administers governement research and reports regarding hydrology.

Visualize data and water resources by state or country.

EPA Environmental Protection Agency water topics page includes drinking water, water bodies, wastewater and water treatment, pollution monitoring, research and infrastructure managment.