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New Studies Reveal Another Toxic Page in the Coal Ash Chronicles

The latest independent study of water quality among 11 North Carolina lakes and rivers downstream from coal-fired power plants’ coal ash ponds revealed “high levels of contaminants that in several cases exceed the U.S. Environmental Protection Agency’s guidelines for drinking water and ecological effects.”

Coal ash, the toxic byproduct of burning coal for electricity, is typically stored in wet, often unlined, ponds. The most recent study, led by Duke University and published in the peer-reviewed journal Environmental Science & Technology, examined discharges from these ponds and how they affect lakes and rivers at different upstream and downstream points.

Each new page in the Coal Ash Chronicles is dripping with more arsenic-laced water than the last.

Arsenic concentrations in water flowing from coal ash ponds at Duke Energy’s Riverbend power plant into Mountain Island Lake, a primary drinking water source for Charlotte, were nine times higher than the federal drinking water standard. Near Asheville, coal ash pond discharges flowing into the French Broad River from Progress Energy’s Arden power plant had arsenic levels four times higher than the federal drinking water limit. Although this doesn’t mean that these cities’ drinking water itself is as contaminated as the discharge points, it shows a pattern of unacceptably high pollution from coal ash dumps.

The researchers’ surface water findings are likely unsurprising to folks who are familiar with the results of state groundwater monitoring near the 14 North Carolina power plants with unlined coal ash ponds that have found frequent exceedances of groundwater standards.

Affirming that coal ash pollution also causes costly damage to fish and wildlife, a study published in the same journal this August found that, “The combined direct and indirect cost of poisoned fish and wildlife exceeds $2.3 billion, which is enough money to construct 155 landfills with state-of-the-art composite liners and leachate collection systems,” and that cost is projected to increase by an additional $3.85 billion over the next 50 years. Following this report, the latest Duke University study brings new causes for alarm.

Laura Ruhl, Avner Vengosh, and other study authors found levels of arsenic in Mountain Island Lake sediment that were roughly 25 times higher than current EPA standards for drinking water, and nearly twice the EPA standard for aquatic life. Researchers also found that coal-fired power plants that use scrubbers to control air pollution often discharge water with higher levels of selenium, a toxin that can cause neurological damage to humans at high exposure levels. Dangerous byproducts of burning coal, such as selenium, are being transferred from air pollutants into coal ash, and because coal ash is not regulated as a hazardous substance, these byproducts are leaching into water supplies.

The Duke University study bolsters citizen concerns about public dangers from lax oversight of coal ash, and comes just days after the Southern Environmental Law Center and a coalition of environmental groups filed suit against the N.C. Environmental Management Commission. The groups are seeking legal orders to make Progress Energy Carolinas and Duke Energy Carolinas clean up known groundwater contamination at 14 power plants’ ash dumps.

In other coal ash news this week, concerned Mecklenburg County residents with the grassroots group We Love Mountain Island Lake are hosting a community meeting featuring a panel discussion on the lake’s water quality. Panelists include Rusty Rozzelle, Charlotte Mecklenburg water quality manager and Sam Perkins, director of technical programs for the Catawba Riverkeeper.

The meeting is Thurs., Oct. 18 at 7:30 p.m. at Cook’s Memorial Presbyterian Church in Fellowship Hall. The address is 3413 Mt. Holly-Huntersville Road, Charlotte, NC 28216

Molly is passionate about sharing the environmental and cultural stories of our region, and serves as AV's Editorial Communications Coordinator and Editor of The Appalachian Voice publication.

  1. Jewell says:

    Molly, while I believe our fight for cleaner air and water resources is a continuing struggle, and especially for those whose health is effected by the toxic poisons in the here and now need to have access to natural means of detoxifying their bodies. These toxic heavy metals and industrial chemicals sequester within the fatty tissues, then the vital organs, like the brain, lungs, liver, kidneys and then into the muscles.. I had what is called a “body burden” of lead, aluminum, arsenic, and cadmium…

    Because someone shared a mineral that is powerfully attracted to toxic heavy metals, which are all positively charged toxins and most industrial chemicals, by capturing and removing through bodily excretion, my life was given back to me. I have my quality of life back and having been sharing my results with many others ever since.

    I offer a link to my site to get more information and happily offer it at wholesale. Even though it is affordable for most everyone at retail, I know many are struggling with their health and are also struggling financially. I also waive the membership fee to access the wholesale cost and would be honored to answer any questions… Blessings to you and The Appalachian Voice for keeping us posted on current health related information.

    Per a 2005 study by the Environmental Working Group, ( and Red Cross, pregnant women have a body burden which makes the fetus at risk. The average newborn has 200 different industrial chemicals, pollutants & pesticides in their blood. 76 of those were carcinogens, 94 were toxic to brain & nervous systems, and 79 of them caused birth defects and abnormal development. Every baby had teflon, flame-retardants, heavy metals, and pesticides (some banned since the 50’s). If they are toxic, EVERYONE of us are! The immediate steps to detoxing can take place now in order to remove these harmful toxins can be taken now to give your body a change to rebalance and to heal itself…

    Blessings and in gratitude to The Appalachian Voice!

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