GPS: The World's Water

Massachusetts Department of Environmental Protection Drinking Water Program

Information from the U.S. Environmental Protection Agency (EPA) on water-related issues and laws & regulations.

Water and Agriculture Information Center (WAIC) provides electronic access to information on water and agriculture. The center collects, organizes, and communicates the scientific findings, educational methodologies, and public policy issues related to water and agriculture.

United States Geological Survey data and information, including maps on US water resources

US Army Corps of Engineers (USACE) Institute for Water Resources (IWR) provides information and research on various aspects of hydrologic engineering

Food & Agriculture Organization of the United Nations (FOA) resource page includes data and research publications

United Nations portal on international water programs and research

Information on the World Banks projects and research on international water issues