"Groundwater levels are declining in an aquifer that serves parts of Wyoming and seven other states, according to a new report by the U.S. Geological Survey.

The report documents changes in groundwater levels in the High Plains Aquifer, also known as the Ogallala Aquifer, from 1950 — before significant groundwater irrigation was developed in the area — to 2013 and from 2011 to 2013.

Measurements between 2011 and 2013 represent a large decline in groundwater levels, said USGS scientist Virginia McGuire, lead author of the study."

The Associated Press had the story December 16, 2014. [2]

SEE ALSO:

"Water-Level Changes and Change in Water in Storage in the High Plains Aquifer, Predevelopment to 2013 and 2011–13" (USGS) [3]