May 2, 2014 – by Jimmy Jenkins, WTIU News
This is part one of a two-part series on coal ash ponds in Indiana. Part 2 is now available at: http://indianapublicmedia.org/news/coal-ash-ponds-pose-contamination-risk-drinking-water-66894/
In the neighborhood of East Mt. Carmel, residents like to live a simple country life.
They fish in the nearby Wabash River, they get around on their dirt bikes and ATVs and go to church.
But several years ago the quality of life here was threatened. East Mt Carmel is located just across the street from the third largest coal-fired power plant in the world.
The Gibson Duke plant burns approximately 8 million tons of coal each year.
What Coal Ash Is And How It’s Regulated
There are many byproducts but coal ash or fly ash has the most potential for contamination.
“This is generated in what we call a pulverized coal burner which takes very small particles of coal, burns them at high temperature, typically over 1,100 degrees Celsius,” says Tracy Branam, a geochemist with the Indiana Geological Survey, says as he holds a glass container filled with fly ash.
Duke stores more of it at this plant than any other place in the state: almost 17 million tons, and that figure doesn’t include other ash stored on site, including ash in landfills and structural fills
One of the most common ways is simply to dig a large pit and store it on the power plant site.
And sometimes water is added to the ash so it can be moved around through pipes and stored in ponds. There are 74 of these ponds in Indiana, which is more than any other state in the country.
They can dwarf the size of other man-made reservoirs, but unlike typical landfills, they’re almost entirely unregulated.
They don’t have to be lined like municipal waste landfills so the ash can and does leach into the surrounding area and water table.
In most cases, power plant owners are supposed to get a permit from the Department of Natural Resources if they want to build a coal ash pond on their property.
But the reality is that rarely happens.
“Some of the dams in the state in the ash ponds have gone through our permit process. I would say the majority of them have not,” says Kenneth Smith, the assistant director with the DNR’s water division. “Some are inspected that we had been aware of through going through the permit process. There are likely others out there that should have gone through the process but didn’t.”
When asked why the companies haven’t gone through the process, Smith said the companies’ officials would have to answer that.
“Why they would do that I don’t know,” he said.
Smith says a recent survey from the EPA showed several power companies had built coal ash ponds without seeking a permit.
“There were many on that list that were ones that were not in our inspection program they had never gone through our permit process,” Smith says. Continue reading