Coal-ash Dams in W.Va.

West Virginia has at least 16 of the sort of dam that unleashed more than 1 billion gallons of wet coal ash in Tennessee when it failed last month, but they "haven't been examined by a state dam safety inspector for at least five years," The Charleston Gazette reports.

"Some of the facilities have gone more than 20 years without a government inspection," the article said, citing data released by the state Department of Environmental Protection.

The article features an online interactive map. The Gazette also follows up by reporting that "federal investigators have identified serious deficiencies in West Virginia's effort to ensure coal slurry impoundments do not break into nearby underground mines."