Information on water resource topics, including biology, chemistry, limnology, and drinking water.

Information for citizens interested in water quality, for water educators, and for Extension personnel. Extensive collection of links and other resources.

Water quality and how aquatic life (fish, invertebrates, algae) is used to measure the overall health of the nation's waters. Lots of links to state and federal programs as well as other sites.

Branch of the USDA Agricultural Research Service (ARS) collecting water resource related data to monitor the environment as it is affected by land use.

Information on water resources, use, quality, organization, tariff and issues in South Korea. The growing disparity between water supply and demand and degrading water quality will make water cycles increasingly volatile for some regions, leading to more water shortages.

information about releases of pollutants into air, water and land, from Environment Canada

Home page for water resources information from the U.S. Geological Survey. Topics include ground water, surface water, water use, water quality, acid rain, toxic substances hydrology.

Purpose is to provide a comprehensive information resource for water professionals.

Describes what a watershed is, how a water cycle works, and shows how the last glacier shaped the western Pennsylvania/southwest New York region. Focus is on how water workes within natural systems, and how human activities can impact water quality.

Evansville Water Utility; learn about water quality, the facility, research, education programs, conservation, history and what's new.