Million year old groundwater in Maryland water supply
Monday, June 18, 2012 - 12:00
in Earth & Climate
A portion of the groundwater in the upper Patapsco aquifer underlying Maryland is over a million years old. A new study suggests that this ancient groundwater, a vital source of freshwater supplies for the region east of Washington, D.C. and Baltimore, was recharged over periods of time much greater than human timescales.