GSA Hydrogeology Division: Programs, awards,and 2x/year newsletter of the Geological Society of America Hydrogeology Division.
Illinois Groundwater Consortium: Working toward providing a scientifically valid basis for agricultural chemical management and regulatory decisions affecting groundwater.
National Ground Water Association: Groundwater scientists and engineers, as well as manufacturers and contractors in the water well industry.
Wisconsin Ground Water Association: Non-profit volunteer organization advancing understanding of Wisconsin's ground water (scientific, technical, legal, educational, and public policy aspects).
Listed links may put this banner on their website.
Help
build the largest human-edited directory on the web.