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Tests Show Pollution Near Ash Spill


This photo, supplied by the Tennessee Valley Authority, shows the aftermath of a retention wall collapse, Monday, Dec. 22, 2008, in Harriman, Tenn. A retention pond wall collapsed early Monday morning at a power plant run by the TVA, the nation's largest public utility, releasing a frigid mix of water and ash that flooded 15 homes nearby. (AP Photo/Tennessee Valley Authority )

NEW YORK - Preliminary water tests from rivers near a huge coal ash spill in Tennessee show elevated levels of pollutants such as mercury and lead, an environmental group said yesterday.

"We're concerned that the water poses a greater risk to residents in the area than has been revealed so far," said Matt Masson, a program director at Appalachian Voices, a environmental group that coordinated the testing of the water with scientists from Appalachian State University.

An earthen dike collapsed Dec. 22 at the Tennessee Valley Authority's Kingston coal-fired power plant, spilling coal ash across as much as 400 acres. The ash, left from decades of coal burning, had been stored in a sludge pond. The spill extended into a waterway, blocked a road, and ruined three homes, according to the TVA.

Fly ash, a byproduct of burning coal, is known to contain small amounts of heavy metals and other pollutants dangerous to human health. In 2000 the US Environmental Protection Agency decided that the ash would not be managed as a hazardous waste.

The environmental group's tests, which took place Dec. 27, showed higher levels of the pollutants of arsenic, mercury, and lead than reported by the TVA and the US Environmental Protection Agency.

Arsenic levels from the Kingston power plant canal, for example, tested at nearly 300 times the allowable limits in drinking water. A sample from 2 miles downstream revealed arsenic at about 30 times the limit.


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"Although these results are preliminary, we want to release them because of the public health concern and because we believe the TVA and EPA aren't being candid," Robert F. Kennedy, Jr., chair of the Waterkeeper Alliance, said in a release.

Wasson said the TVA and EPA have not revealed exactly where tests they reported took place and that some of them took place upstream from the spill, where heavy contamination would not be expected.

The TVA, which is spraying the spilled ash with straw and seed to minimize dust and erosion, has said on its website that preliminary testing at the Kingston water treatment plant has shown levels of metals that are below limits for drinking water. Other tests on rivers near the site showed safe levels, it said.

Appalachian Voices said it has not completed tests on drinking water yet, in part because it takes time for contaminants in surface water to filter down into ground water supplies.


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