Environmental Disaster in Tennessee

usxp has the story at AA News:

There was a huge and terrible environmental disaster in Tennessee yesterday.

The Tennessee Valley Authority, better known as TVA, has a coal-burning power plant located near Harriman, Tennessee, along Interstate 40 between Knoxville and Nashville. The stuff that is left over after TVA burns their coal is called coal ash.

Coal ash contains mercury and dangerous heavy metals like lead and arsenic - materials found naturally in coal are concentrated in the ash.

TVA has a huge mountain of this coal waste material stored in a gigantic pile next to their Harriman (Kingston) power plant, alongside a tributary of the Tennessee River.

On Monday morning Dec. 22 around 1:00 am, the earthen retaining wall around this mountain of coal ash failed and approximately 500 million gallons of nasty black coal ash flowed into tributaries of the Tennessee River - the water supply for Chattanooga TN and millions of people living downstream in Alabama, Tennessee and Kentucky.

This Tennessee TVA spill is over 40 times bigger than the Exxon Valdez spill in Alaska, if local news accounts are correct.

This engineering failure has a familiar ring.