The Hydrology of Ground Water in Maryland, Delaware, and the District of Columbia Questions and answers are original compositions or are compiled from any available sources and credit is given where appropriate. New material will be added as needed.
Contributions are welcome.
Ground water is water that flows or seeps downward and saturates soil or rock, supplying springs and wells. The upper surface of the saturated zone is called the water table. Ground water, which is found in aquifers below the surface of the Earth, is one of the Nation's most important natural resources. An aquifer is a geologic formation that can store and transmit water to wells, springs and some streams. Wells can be drilled into aquifers and water can be pumped out.