The leak, discovered before 6 a.m. has been stopped, according to John Moulton, with the Tennessee Valley Authority.

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“Some materials flowed into Widows Creek, although most of the leakage remained in the settling pond,” he said.

Gypsum is a byproduct of coal-burning power plants when “scrubbers” are added that use limestone spray to clean air emissions. This pulls sulfur dioxide from the emissions.

Tighter air emissions controls result in additional waste byproducts. Gypsum can be used in building materials.

Alabama environmental officials were on their way as of 10:15 a.m. Central Time to an spill at TVA’s Widows Creek coal-fired power plant in northeastern Alabama.

Scott Hughes, spokesman for the Alabama Department of Environmental Management said, “The only thing we’ve got right now is that there was a release from a gypsum treatment operation.”

“We do understand that some of the material has reached Widows Creek.”

The creek from which TVA’s coal burning plant gets its name, crosses the plant property. Gypsum can be sold for use in wallboard, but markets have been slow and it like more standard ash can build up in waste ponds.

“We’re in the process of gathering more info and getting a full report.”

Kingston is the scene of a TVA ash pond that ruptured: Early on the morning of Dec. 22, more than a billion gallons of sludge flowed out of the pond, damaging a dozen homes and creating environmental havoc along the Emory River.

The Widows Creek Fossil Plant is located on Guntersville Reservoir on the Tennessee River. It has eight coal-fired units and was completed in 1965. The plant consumes about 10,000 tons of coal a day. The ash from that coal was in the pond that broke there.

SOURCE: Coal Ash Spill › 2nd coal ash spill reported in Alabama

A coal ash spill in eastern Tennessee that experts were already calling the largest environmental disaster of its kind in the United States is more than three times as large as initially estimated, according to an updated survey by the Tennessee Valley Authority.

Officials at the authority initially said that about 1.7 million cubic yards of wet coal ash had spilled when the earthen retaining wall of an ash pond at the Kingston Fossil Plant, about 40 miles west of Knoxville, gave way on Monday. But on Thursday they released the results of an aerial survey that showed the actual amount was 5.4 million cubic yards, or enough to flood more than 3,000 acres one foot deep.

The amount now said to have been spilled is larger than the amount the authority initially said was in the pond, 2.6 million cubic yards.

A test of river water near the spill showed elevated levels of lead and thallium, which can cause birth defects and nervous and reproductive system disorders, said John Moulton, a spokesman for the T.V.A., which owns the electrical generating plant, one of the authority’s largest.

Mr. Moulton said Friday that the levels exceeded safety limits for drinking water, but that both metals were filtered out by water treatment processes.

Mercury and arsenic, he said, were “barely detectable” in the samples.

The ash pond was adjacent to the Emory River and near a residential area, where three houses were destroyed by the tide of muddy ash. Water sampled several miles downstream from the spill was safe to drink, but its iron and manganese content exceeded the secondary drinking water standards set by the Environmental Protection Agency, which govern taste and odor but not potential health effects, Mr. Moulton said.

Neither the authority nor the E.P.A. has released the results of tests of soil or the ash itself. Authority officials have said that the ash is not harmful, and the authority has not warned residents of potential dangers, though federal studies show that coal ash can contain dangerous levels of heavy metals and carcinogens.

“You’re not going to be endangered by touching the ash material,” said Barbara Martocci, a spokeswoman for the T.V.A. “You’d have to eat it. You have to get it in your body.”

The Tennessee Department of Environment and Conservation also released a statement saying there was no indication of risk unless the ash was ingested.

But residents like Deanna Copeland were thinking further into the future.

“Our concern is, what happens if this liquid dries out?” Ms. Copeland said. “There are huge health concerns. It’s going to get in our house. We’re going to breathe it in. It would be like walking through a dust bowl, and we don’t know what’s in the dust.”

A round-the-clock cleanup effort continued on Friday, much of it clearing roads and railway tracks that were blocked by the sludge. Several booms, or skimmers, were installed on nearby rivers to catch floating cenospheres, a valuable component of the ash used to make bowling balls and other manufactured goods. A weir, or underwater dam, that would keep settled ash from moving downstream was about one-fifth completed, T.V.A. officials said.

Some nearby residents said that the authority had done little to address their concerns.

“We’re terribly frustrated,” said Donald Smith, 58, a laboratory facilities manager who lives in the affected area. “It seems like T.V.A. is just throwing darts at the problem, and they don’t have a clue how to really fix it.

“It was nice that they came by to talk to us. They’re making an effort. But what upsets me is they didn’t have a plan in place. Why hadn’t anybody thought, ‘What happens if this thing bursts?’ ”

Residents said they were stunned by the new figure for the size of the spill.

“That’s scary to know that they can be off by that much,” said Angela Spurgeon, whose dock and yard are swamped with ash. “I don’t think it was intentional, but it upsets me to know that a number was given of what the pond could hold, and the number now is more than double.”

Authority officials offered little explanation for the discrepancy, saying the initial number was an estimate based on their information at the time.

Ms. Spurgeon said the scope of the disaster was difficult to fathom, even from photos.

“This is not a thin coating of ash,” she said. “These are boulders. There’s one in our cove that’s probably the size of our home.”

The spill has reignited a debate over whether coal ash should be federally regulated as a hazardous material.

Environmentalists have long argued that coal ash, which can contaminate groundwater and poison aquatic environments, should be stored in lined landfills. The ash ponds at Kingston were separated from the river only by earthen dikes. Coal plants around the country, most near rivers that supply the water they need to operate, store coal ash in unlined embankments and ponds, and in some areas coal ash is recycled as fill material.

The T.V.A. is still investigating the cause of the breach, but officials have suggested that unusually heavy rain and freezing temperatures may have been factors.

SOURCE: THE NEW YORK TIMES

SOURCE: Coal Ash Spill › Tennessee Ash Flood Larger Than Initial Estimate

December 30, 2008

The online environmental community is abuzz with reports of all kinds about the coal ash sludge spill in Tennessee, ranging from first-hand accounts to health concerns to worries about coal in general. Twitter in particular has been a place where people have been posting news stories and concerns.

A local blog also posted before and after photos of the affected area.

Joe Romm blogs at ClimateProgress that the muck has a lot of people worried about how easy it would be for another such spill to happen:

Coal ash deposits in the USA are now under renewed scrutiny after a giant spill just before Christmas released 5.4 million cubic yards of toxic sludge into Tennessee waterways. Water tests near the spill from the Kingston Fossil Plant showed elevated levels of lead and thallium, which can cause birth defects and nervous and reproductive system disorders. The spill muddied the waters in the Emory river and is flowing into tributaries of the Tennessee River – the water supply for Chattanooga and millions of people living downstream in Alabama, Tennessee and Kentucky.

So now a big question mark hangs over the hundreds of coal plants all across the country which store their fly ash in unlined embankments and ponds — like the one that failed last week. Most are situated near rivers that supply water needed by the coal plants to operate.

The NY Times reported that in the US, coal plants produce 129 million tons of postcombustion byproducts a year. It’s the second-largest waste stream in the country, after municipal solid waste, and it’s storage and handling is unregulated. Who knew?

Source: Huffington Post

SOURCE: Coal Ash Spill › Tennessee Coal Ash Spill Before And After — And What’s Next

Tennessee Gov. Phil Bredesen and other state officials plan to tour the site of a major spill of coal ash from a power plant.

The officials were scheduled Wednesday to walk through the area in rural eastern Tennessee where a billion gallons of sludge covered more than 300 acres and spilled into a river.

Bredesen is also expected to discuss steps being taken to protect the health and safety of area residents.

The Dec. 22 deluge from a Tennessee Valley Authority power plant destroyed three houses, displaced a dozen families and damaged 42 parcels of land, but there were no serious injuries.

Federal officials have cautioned residents who use private wells or springs to stop drinking the water pending more tests because of high levels of arsenic.

Source Associated Press

SOURCE: Coal Ash Spill › Tennessee governor, other officials to tour site of major coal ash spill from power plant

December 30, 2008

Water samples near a billion-gallon spill of coal ash in eastern Tennessee have found levels of arsenic and other heavy metals higher than drinking-water standards, prompting a warning against using private wells in the area.

Samples taken at the site of the spill in Harriman, 35 miles southwest of Knoxville, “slightly exceed” the standards for some metals, according to a statement from the Tennessee Valley Authority, owner of the coal power plant where the Dec. 22 accident occurred. Results from well-water and air tests won’t be known until later this week, the utility said.

The spill at the utility’s Harriman Fossil Plant deluged more than 300 acres of rural Roane County, destroying three homes and damaging 42 other properties. In nearby Kingston, that raised fears of fouled water and air, while 13 families wait to see if their homes can be salvaged, said Carolyn Brewer, finance director for the city of 5,300.

“Some of them are staying with families; some are working with real estate agents, leasing homes, buying homes,” Brewer said in a telephone interview today. “There’s two or three that will just never be able to get back in their homes. They’re just destroyed.”

The sludge-like spill, a mixture of water and residue from burned coal, escaped from a 40-acre holding pond after a retaining wall burst last week. After repeatedly saying the spilled material isn’t toxic, the TVA cautioned residents in its latest statement against touching or stirring up the material.

Samples from the Tennessee River, near the intake for Kingston’s water plant, found no violations of drinking-water standards, and any harmful levels of arsenic likely would be removed by treatment, the TVA said in its statement, issued jointly with state and local authorities and the U.S. Environmental Protection Agency. The plant serves about 10,000 people in and around Kingston, Brewer said.

Well Warning

“Water from other sources that are not normally treated, such as private drinking wells or springs, may be contaminated if impacted by the release of the fly ash,” the agencies said in their news release. “These areas should not be used until they have been evaluated.”

Arsenic, a byproduct of coal burning that also occurs naturally, can cause a variety of ills when ingested, including nausea, numbness and partial paralysis, according to the EPA’s Web site. The metal has been linked to bladder, lung and kidney cancer in some studies, the EPA said.

Authorities are testing air quality in the area and “currently evaluating the potential for health effects,” the agencies said in the TVA’s statement. Anyone who touches soil, sediments or water affected by the spill should wash their hands thoroughly with soap and water and wash clothes separately from other items, according to the statement.

Generating Units Shut

The Kingston plant, completed in 1955, produces 10 billion kilowatt-hours of electricity annually, enough to supply 670,000 homes. The authority said today that seven of the plant’s nine generating units had been shut down, calling that a result of reduced demand due to warm temperatures and not the ash spill.

The TVA is a federal corporation that was created by President Franklin Delano Roosevelt and Congress in 1933. The public power company provides electricity to industry and about 9 million people in an area covering 80,000 square miles of the southeastern U.S., according to the TVA’s Web site.

Source: Bloomberg

SOURCE: Coal Ash Spill › Coal Ash Spill Leads to Arsenic Warnings for Tennessee Wells