Correction: This story has been updated to clarify the separate timelines for the Tennessee Valley Authority to dispose of coal ash at the Allen Fossil Plant and remediation of the plant itself. U.S. Rep. Steve Cohen took aim at the lingering coal ash in his district this week, targeting the pollution that is the byproduct of coal-fired power plants in Memphis and across the country. Cohen introduced the Ensuring the Safe Disposal of Coal Ash Act this week, a move that could help strengthen provisions of the Clean Future Act, a bill introduced this year that is aimed at reducing carbon dioxide emissions and includes measures intended to speed up coal ash clean-up and set further standards for it.