This May 22, 2009 Associated Press photo shows John Fenton, a farmer who lives near Pavillion in central Wyoming, near a tank used in natural gas extraction, in background. 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 in Wyoming, for the first time that fracking may be to blame for causing groundwater pollution. The EPA also emphasized that the findings are specific to the Pavillion area. The agency said the fracking that occurred in Pavillion differed from fracking methods used elsewhere in regions with different geological characteristics.
Read the article: EPA implicates fracking in groundwater pollution