EPA implicates fracking in groundwater pollution

You've reached 4 FREE premium stories this month

Simply register to continue. It's free.

Register Learn more

Already registered? Click here to login.

In this April 15, 2009 file photo, an unidentified worker steps through the maze of hoses being used at a remote fracking site being run by Halliburton for natural-gas producer Williams in Rulison, Colo. The U.S. Environmental Protection Agency said, for the first time, on Thursday Dec. 8, 2011, that a controversial method of improving the productivity of oil and gas wells in causing groundwater pollution and contaminating water wells., commonly called fracking. Photo by DAVID ZALUBOWSKI, THE ASSOCIATED PRESS FILE