Toxic Coal Ash Piling up in Ponds in 32 States

In this Dec. 22, 2008 file photo, an aerial view shows the aftermath of a retention pond wall collapse at the Tennessee Valley Authorities Kingston Fossil Plant in Harriman, Tenn. (AP Photo/Wade Payne, File)

(AP)

Millions of tons of toxic coal ash is piling up in power plant ponds in 32 states, a situation the government has long recognized as a risk to human health and the environment but has done nothing about.

An Associated Press analysis of the most recent Energy Department data found that 156 coal-fired power plants store ash in surface ponds similar to one that ruptured last month in Tennessee. On Friday, a pond at a northeastern Alabama power plant spilled a different material.

Records indicate that states storing the most coal ash in ponds are Indiana, Ohio, Kentucky, Georgia and Alabama.

The man-made lagoons hold a mixture of the noncombustible ingredients of coal and the ash trapped by equipment designed to reduce air pollution from the power plants.

Over the years, the volume of waste has grown as demand for electricity increased and the federal government clamped down on emissions from power plants.

The AP's analysis found that in 2005, the most recent year data is available, 721 power plants generating at least 100 megawatts of electricity produced 95.8 million tons of coal ash. About 20 percent — or nearly 20 million tons — ended up in surface ponds. The remainder ends up in landfills, or is sold for use in concrete, among other uses.

The Environmental Protection Agency eight years ago said it wanted to set a national standard for ponds or landfills used to dispose of wastes produced from burning coal.

The agency has yet to act.

As a result, coal ash ponds are subject to less regulation than landfills accepting household trash, even though the industry's own estimates show that ash ponds contain tens of thousands of pounds of toxic heavy metals. The EPA estimates that about 300 ponds for coal ash exist nationwide.

Without federal guidelines, regulations of the ash ponds vary by state. Most lack liners and have no monitors to ensure that ash and its contents don't seep into underground aquifers.