Senate Subcommittee

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West Virginia Secretary of State Natalie Tennant listens while testifying on Capitol Hill in Washington, Tuesday, Feb. 4, 2014, before the Senate subcommittee on Water and Wildlife hearing to examine the safety and security of drinking water supplies following the Central West Virginia drinking water crisis. (AP Photo/Lauren Victoria Burke)

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** FILE ** Sen. Jay Rockefeller, D-W.Va., testifies on Capitol Hill in Washington, Tuesday, Feb. 4, 2014. (AP Photo/Lauren Victoria Burke)

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A staff member holds up a chart during the Senate subcommittee on Water and Wildlife hearing to examine the safety and security of drinking water supplies following the Central West Virginia drinking water crisis, Tuesday, Feb. 4, 2014, on Capitol Hill in Washington. (AP Photo/Lauren Victoria Burke)

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Sen. Joe Manchin, D-W.Va., listens at left as Rep. Nick Rahall, D-W.Va. testifies on Capitol Hill in Washington, Tuesday, Feb. 4, 2014, before the Senate subcommittee on Water and Wildlife hearing to examine the safety and security of drinking water supplies following the Central West Virginia drinking water crisis. (AP Photo/Lauren Victoria Burke)

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Randy Huffman, Cabinet Secretary, West Virginia Department of Environmental Protection, testifies on Capitol Hill in Washington, Tuesday, Feb. 4, 2014, before the Senate subcommittee on Water and Wildlife hearing to examine the safety and security of drinking water supplies following the Central West Virginia drinking water crisis. (AP Photo/Lauren Victoria Burke)

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Rep. Shelly Moore Capito, R-W.Va. testifies on Capitol Hill in Washington, Tuesday, Feb. 4, 2014, before the Senate subcommittee on Water and Wildlife hearing to examine the safety and security of drinking water supplies following the Central West Virginia drinking water crisis. (AP Photo/Lauren Victoria Burke)

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Brent Fewell, Vice President of Environmental Compliance, United Water. testifies on Capitol Hill in Washington, Tuesday, Feb. 4, 2014, before the Senate subcommittee on Water and Wildlife hearing to examine the safety and security of drinking water supplies following the Central West Virginia drinking water crisis. (AP Photo/Lauren Victoria Burke)

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From left, Sen. Joe Manchin, D-W.Va., West Virginia Secretary of State Natalie Tennant, and Rep. Nick Rahall, D-W.Va. confer on Capitol Hill in Washington, Tuesday, Feb. 4, 2014, prior to testifying before the Senate subcommittee on Water and Wildlife hearing to examine the safety and security of drinking water supplies following the Central West Virginia drinking water crisis. (AP Photo/Lauren Victoria Burke)

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Rep. Shelly Moore Capito, R-W.Va. pours a glass of water while testifying on Capitol Hill in Washington, Tuesday, Feb. 4, 2014, before the Senate subcommittee on Water and Wildlife hearing to examine the safety and security of drinking water supplies following the Central West Virginia drinking water crisis. (AP Photo/Lauren Victoria Burke)

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Erik Olson, Senior Strategic Director for Health and Food Natural Resources, testifies on Capitol Hill in Washington, Tuesday, Feb. 4, 2014, before the Senate subcommittee on Water and Wildlife hearing to examine the safety and security of drinking water supplies following the Central West Virginia drinking water crisis. (AP Photo/Lauren Victoria Burke)