North Carolina regulators say they've cited Duke Energy for a crack in a dam at a coal ash pit near the Cape Fear River.
The state Department of Environment and Natural Resources said Friday it had issued Duke a notice of deficiency, and called on the company to take steps to ensure the earthen dam's stability.
If Duke doesn't submit a comprehensive engineering report about the dam by April 7, the company could face a fine.
Duke finished emergency repairs Monday to the dam that holds back millions of tons of coal ash.
Duke says no water was flowing through the dam.
The structure is at the Cape Fear River plant, where North Carolina regulators said Duke illegally pumped 61 million gallons of contaminated water from a coal ash pit.
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