U.S. EPA

New York State Department of Health

Nassau County Department of Health

New York State Department of Envoronmental Conservation

United States Geological Survey

American Water Works Association (AWWA)

New York State Section of the AWWA

The Groundwater Foundation

National Groundwater Association

National Water Resources Association

Water Environment Federation

Long Island Groundwater Research Institute

Long Island Water Conference

SUNY Stony Brook Bibliography of Long Island Hydrology

SUNY Stony Brook Hydrogeological Framework of Long Island