Goal is to provide unbiased earth science information on the behavior of toxic substances in U.S. hydrologic environments.

Assessment of trace elements in ground water, surface water, streambed sediment, and fish and clam tissue across the United States.

Web interface to database of water quality in Ireland. Interactive maps and graphs show water quality for rivers and lakes throughout the country. Also includes links to reports on inland water quality. (Requires Java 1.1 browser.)

Philomath High School senior class project that monitors water quality of swimming holes. Includes photos of the sites and water quality results.

Provideseditorial content including developments in water conditioning, filtration and disinfection for residential, commercial and industrial systems.

7th graders Dave and Adnan built with website providing information on water testing, pullutants, and watersheds.

Charitable trust foundation that promotes education and research in water purification and related technologies.

Presented to raise awareness of water-quality issues. Offers information on rainfall, weather, watersheds, stormwater projects, and pollution.

Judith Burke, British Columbia water inventory specialist, provides articles, photos and information related to water quality, testing, salmon restoration, and related topics. Also includes resume, paintings, and cartoons.

SEL Environmental is a sub-contractor specialising in engineered solutions for passive and active gas protection to structures, stormwater management, in-ground vertical geomembrane barrier and vent trenches.