Duke Energy says there is a second pipe that is leaking under a coal ash dump at the Dan River Steam Station in North Carolina.
The company says there is no immediate danger of collapse, despite concerns from state regulators that the pipe could fail and trigger another toxic spill into the Dan River, according to the Associated Press.
On Friday, the state Department of Environment and Natural Resources said video was fed through the pipe and showed potentially contaminated water leaking into the river.
Duke has 10 days to come up with a plan to fix the leaks.
The third largest coal ash spill in the U.S. occurred earlier this month when a similar pipe at Duke’s dump collapsed.
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