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December 9, 2011
associated press

John Fenton, a farmer who lives near Pavillion, Wyo., stands near a tank used in natural gas extraction. Fenton and some of his neighbors blame hydraulic fracturing, or "fracking," a common technique used in drilling new oil and gas wells, for fouling their well water. The U.S. Environmental Protection Agency announced Thursday for the first time that fracking may be to blame for causing groundwater pollution.