Groundwater Age Under Delmarva Peninsula, and the Implications for Chesapeake Bay Cleanup, are Focus of USGS Study Published in October 2013

Research conducted by U.S. Geological Survey (USGS) scientists in Virginia and published in October 2013 found that groundwater and the nitrogen it contains can persist under the Delmarva Peninsula for times ranging from less than one year to as long as centuries, with the median time estimated at 20 to 40 years.  This finding has implications for efforts to reduce the levels of nitrogen in Chesapeake Bay waters, one of the causes of Bay water-quality problems.  The study is “Quantifying Groundwater’s Role in Delaying Improvements to Chesapeake Bay Water Quality,” by Ward Sanford of the USGS in Reston and Jason Pope of the USGS in Richmond, published online by Environmental Science and Technology, Oct. 23, 2013.

Sources: New USGS Study on Chesapeake Bay: Groundwater Delaying the Effects of Some Water Quality Actions, U.S. Geological Survey News Release, 11/12/13.

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