Coal ash solids found in sediments collected from Sutton Lake in 2015 and 2018 suggest the eastern North Carolina lake has been contaminated by multiple coal ash spills, most of them apparently unmonitored and unreported until now.
“Our results clearly indicate the presence of coal ash at the bottom of Sutton Lake and suggest there have been multiple coal ash spills into the lake from adjacent coal ash storage facilities after, and even before, floodwaters from Hurricane Florence caused major flooding in 2018,” said Avner Vengosh, professor of geochemistry and water quality at Duke University’s Nicholas School of the Environment, who led the research.
”The levels of coal ash contaminants we detected in Sutton Lake’s sediments, including metals with known environmental impacts, are similar to or higher than what was found in stream sediments contaminated by the 2008 Tennessee Valley Authority coal ash spill in Kingston, Tennessee, or the 2014 Dan River spill here in North Carolina,” Vengosh said.
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Image: High levels of coal ash solids in sediments from North Carolina’s Sutton Lake suggest it has been contaminated by multiple coal ash spills, most of them apparently unmonitored and unreported. (Credit: Avner Vengosh, Duke Univ.)