A crew member walks near the scene of a train derailment near Mount Carbon, W.Va., on Tuesday, Feb. 17, 2015. A CSX train carrying more than 100 tankers of crude oil derailed the day before in a snowstorm, sending a fireball into the sky and threatening the water supply of nearby residents.
A crew member walks near the scene of a train derailment near Mount Carbon, W.Va., on Tuesday, Feb. 17, 2015. A CSX train carrying more than 100 tankers of crude oil derailed the day before in a snowstorm, sending a fireball into the sky and threatening the water supply of nearby residents. Chris Tilley AP
A crew member walks near the scene of a train derailment near Mount Carbon, W.Va., on Tuesday, Feb. 17, 2015. A CSX train carrying more than 100 tankers of crude oil derailed the day before in a snowstorm, sending a fireball into the sky and threatening the water supply of nearby residents. Chris Tilley AP