Maryland Department of Natural Resources

Groundwater

photograph of Calvert Cliffs with groundwater seeps, photo by David Butts, 2015
photo by David Butts, 2015

Groundwater is nearly the sole source of fresh drinking water in Maryland's Coastal Plain (the area east of I-95). Approximately 1.4 million people rely on groundwater in the Coastal Plain. While groundwater is not used as much as surface water as a water source, some towns and most domestic users in central and western Maryland also rely heavily on groundwater. A sustainable supply of clean drinking water is crucial to the health and well-being of the citizens of Maryland, in addition to a strong economic future for the State. Explore the links below for more information.