Tag Archives: groundwater replenishment

Ancient water

Delaware Geological Survey carbon-dates groundwater found to be thousands of years old

A drop of rain that falls near Middletown, Del., may take as long as 14,000 years to seep through the earth and trickle underground into a well several miles away, according to new research by the Delaware Geological Survey (DGS). 

Scientists used radiocarbon-dating techniques to determine the age of groundwater from sites in southern New Castle and Kent counties.  (more…)

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