Showing posts with label sludge. Show all posts
Showing posts with label sludge. Show all posts

Wednesday, October 21, 2009

Concrete and Pavement Tainted?


Recently 60 Minutes ran an expose on the dangers of coal ash, and how it's turning up in unexpected places - like road asphalt.

The stuff has already been wreaking havoc on the environment for many years now, like in October 2000 when a coal ash sludge impoundment in Martin County gushed into a underground mine and sent an estimated 306 million gallons (1.16 billion liters) of sludge into tributaries of the Tug Fork River. This incident was investigated in the documentary film Sludge by Appalshop filmmaker Robert Salyer in 2005.

Scary thing is, now Kentucky's coal ash is being used as an additive for the manufacture of pavement used on highways, as an ingredient in some brands of concrete, and even in household materials like carpeting and kitchen countertops.

The EPA doesn't seem to have a problem with this, and even promotes the practice by claiming that using coal ash as an additive has the net effect of "decreasing greenhouse gas emissions from avoided cement manufacturing". (Uh.... but what about the greenhouse gas emissions that resulted in the creation of the coal ash in the first place??)

The folks at Earthjustice are working to make the EPA properly regulate coal ash as the toxic and dangerous substance that it is. The EPA promised to regulate coal ash after more than 1 billion gallons of it burst from a Tennessee storage pond last December. So far they have not kept that promise.


According to the Earthjustice website:

This waste can cause cancer, birth defects, lung and organ damage, and other health threats. It contains such dangerous chemicals as arsenic, lead, mercury, chromium and cadmium. There is enough coal ash in ponds and landfills across the country to flow continuously over Niagara Falls for more than 3 days straight.

Wednesday, January 14, 2009

Sludge


The Tennessee Valley Authority operates a coal-burning power plant located near Harriman, TN (along Interstate 40 between Knoxville and Nashville)

On December 22, 2008, an impoundment at the plant failed, releasing over a billion gallons of a disgusting coal-waste substance that officials dryly refer to as "coal fly ash slurry". Everyone else calls it "sludge".

The sludge covered up over 400 acres of the surrounding land up to six feet deep, destroying homes and flowing into nearby waterways such as the Emory River and Clinch River, tributaries of the Tennessee River. This ended up contaminating the water supply for millions of people living downstream in Alabama, Tennessee and, yes - Kentucky.

On December 30, 2008 a group of landowners filed suit against the TVA for $165 million in Tennessee state court. the Southern Alliance for Clean Energy announced its intention to sue the TVA under the federal Clean Water Act and the Resource Conservation and Recovery Act. Greenpeace has called for a criminal investigation into the preventable incident.

Although it didn't make the news headlines as much as the Harriman incident, a second TVA sludge spill disaster occurred on January 10, when the Widows Creek Fossil Plant in northeastern Alabama leaked toxic coal ash into the Tennessee River, once again threatening the water in some parts of Kentucky.

Kentucky's not without its own sludge floods - On October 11, 2000 a coal sludge impoundment owned by Massey Energy in Martin County gushed into a underground mine which subsequently sent an estimated 306 million gallons (1.16 billion liters) of sludge into tributaries of the Tug Fork River. This incident was investigated in the documentary film Sludge by Appalshop filmmaker Robert Salyer in 2005.

(Photo: a coal sludge reservoir in Bell County near Middlesboro. Courtesy of Dave Cooper's great Mountaintop Removal Roadshow website.)