The Hydrologic Cycle: Online Meteorology Guide Web site is maintained by the Department of Atmospheric Sciences of the University of Illinois at Urbana-Champaign. The guide describes the various aspects of the hydrologic...

This site from the United States Environmental Protection Agency (EPA) features a host of resources about water and water-related issues. With many helpful articles available under categories such as Drinking Water,...

This portal, published by the United States Geological Survey (USGS) Water Resources Program, provides access to information on national water use. There are links to a set of reports and data on U.S. water use from 1985...

The United States Geological Survey pays keen attention to a number of physical processes around the country, and they are no less vigilant in their efforts to study water resources. Visitors to this site will first...

This list of questions and answers about water covers a variety of categories, including water use in the United States, water use in the home, data and measurements, chemistry, and others. Links to additional...