Flood of sludge breaks TVA dike: Collapse poses risk of toxic ash

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http://www.tennessean.com/article/20081223/GREEN02/812230370/1001/RSS6001

December 23, 2008

Flood of sludge breaks TVA dike

Collapse poses risk of toxic ash

By Anne Paine and Colby Sledge
THE TENNESSEAN

HARRIMAN, Tenn. — Millions of yards of ashy sludge broke through a dike at TVA's Kingston coal-fired plant Monday, covering hundreds of acres, knocking one home off its foundation and putting environmentalists on edge about toxic chemicals that may be seeping into the ground and flowing downriver.

One neighboring family said the disaster was no surprise because they have watched the 1960s-era ash pond's mini-blowouts off and on for years.

About 2.6 million cubic yards of slurry — enough to fill 798 Olympic-size swimming pools — rolled out of the pond Monday, according to the U.S. Environmental Protection Agency. Cleanup will take at least several weeks, or, in a worst-case scenario, years.

The ash slide, which began just before 1 a.m., covered as many as 400 acres as deep as 6 feet. The wave of ash and mud toppled power lines, covered Swan Pond Road and ruptured a gas line. It damaged 12 homes, and one person had to be rescued, though no one was seriously hurt.

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