Florida Ground Water Association http://www.fgwa.org

St. Johns River Water Management District http://sjr.state.fl.us/

Suwannee River Water Management District http://www.srwmd.state.fl.us/

Southwest Florida Water Management District http://www.swfwmd.state.fl.us/

National Ground Water Association http://www.ngwa.org

American Ground Water Trust http://www.agwt.org

South Atlantic Well Drillers Jubilee http://www.well-drillers.com