- The Characteristics and Fate of Chlorinated Hydrocarbons in Groundwater - Overview of the environmental problems created by solvent releases.
- Clearwater Hudson River Sloop - Clearwater conducts environmental education, advocacy programs and celebrations to protect the Hudson River, its tributaries and related bodies of water.
- DNAPLs Book by Pankow and Cherry - The authoritative reference book on Dense Non-Aqueous Phase Solvents in Groundwater
- Sam's Environmental Engineering Page - Environmental Engineering information exchange, Water Pollution, stochastic method in groundwater modeling
- Stonycreek, Conemaugh Rivers Improvement Project (SCRIP) involves acid mine drainage & watershed restoration project in Cambria &Somerset Counties of western Pennsylvania USA.
- The (UK) National Bag it & Bin It Campaign - A UK campaign to stop people flushing unsuitable objects down their toilets
- Water Environment Federation - Water Environment Federation is a not-for profit technical and educational organization.
- The Water FAQ - Culligan Dealer wishing to share information