This U.S. Geological Survey (USGS)website provides water data, online publications, a list of USGS - Wisconsin publications, and links to water resource projects and studies in Wisconsin. The water data consists of real-time streamflow, quarterly streamflow reports, water levels measured by a ground-water observation network of 140 wells throughout Wisconsin, and NWISWeb (National Water Information System on the Web) data (consisting of real-time streamflow, ground level water, surface water and water quality data). Educational levels: Graduate or professional