WASHINGTON, DC - OCTOBER 20: Cynthia Dougherty, director of the EPA Office of Water's Office of Ground Water and Drinking Water testifies before the Senate Energy and Natural Resources Committee ... more 
WASHINGTON, DC - OCTOBER 20: Cynthia Dougherty, director of the EPA Office of Water's Office of Ground Water and Drinking Water testifies before the Senate Energy and Natural Resources Committee October 20, 2011 in Washington, DC. The Water and Power Subcommittee heard testimony on the topic of shale gas production and water resources in the Eastern United States with regard to hydraulic fracturing techniques and the impact of those techniques. (Photo by Win McNamee/Getty Images) less 
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Getty Images | Photo By Win McNamee / Getty Images
Thu, Oct 20, 2011 5:17 PM EDT