. . . "The Tennessee Valley Authority's Kingston ash slide : evaluation of potential causes and updates on cleanup efforts : hearing before the Subcommittee on Water Resources and Environment of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, first session, July 28, 2009"@en . . "The Tennessee Valley Authority's Kingston ash slide evaluation of potential causes and updates on cleanup efforts : hearing before the Subcommittee on Water Resources and Environment of the Committee on Transportation and Infrastructure, House of Representatives, One Hundred Eleventh Congress, first session, July 28, 2009"@en . . . . . . . . . . . . . . . .