Charah needs to answer some questions like yesterday:
State regulators have asked the operator of a Chatham County landfill where coal ash is being stored to come up with a plan to address high levels of toxic elements found in nearby water. The Brickhaven site near Moncure is a former clay mine that the state Department of Environmental Quality approved four years ago to be used as a lined landfill for coal ash being moved from unlined pits at Duke Energy power plants.
DEQ's Division of Waste Management sent a letter to Brickhaven operator Charah Inc. on Friday, noting that levels of barium, chloride, chromium, cobalt and vanadium were found at levels higher than state standards in various groundwater monitoring wells over time. In addition, high levels of arsenic, cobalt, copper, lead and zinc were found in nearby surface water.
In theory, the clay located at this particular site should have provided a good impermeable layer to block seepage. But generally speaking, when a mine is "played out," there's not enough (of whatever it is) left over to continue operating. Whatever the case, this just drives home the message that bottom liners are the only way to ensure leachate doesn't get into the groundwater. But thanks to decades of criminal negligence by coal plant operators, only 5% of the nation's ash pits have those liners: