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EPA proposes denying coal ash disposal at six plants

January 27, 2023

The U.S. Environmental Protection Agency (EPA) issued proposed determinations to deny six coal plants’ requests to continue disposing coal ash into unlined surface impoundments.

Specifically, EPA cited inadequate groundwater monitoring networks; failure to prove groundwater is monitored to detect and characterize any elevated levels of contaminants coming from the coal ash surface impoundment; evidence of potential releases from the impoundments and insufficient information to support claims that the contamination is from sources other than the impoundments; inadequate documentation for the design and performance of the impoundment liners; and failure to meet all location restrictions.

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