This story was published in partnership with the Daily Yonder, with support from the IRE Freelance Investigative Fellowship Award.
In 2009, App Thacker was hired to run a dredge along the Emory River in eastern Tennessee. Picture an industrialized fleet modeled after Huck Finn’s raft: Nicknamed Adelyn, Kylee, and Shirley, the blue, flat-bottomed boats used mechanical arms called cutterheads to dig up riverbeds and siphon the excavated sediment into shoreline canals. The largest dredge, a two-story behemoth called the Sandpiper, had pipes wide enough to swallow a push lawnmower. Smaller dredges like Thacker’s scuttled behind it, scooping up excess muck like fish skimming a whale’s corpse. They all had the same directive: Remove the thick grey sludge that clogged the Emory.
The sludge was coal ash, the waste leftover when coal is burned to generate electricity. Twelve years ago this month, more than a billion gallons of wet ash burst from a holding pond monitored by the region’s major utility, the Tennessee Valley Authority, or TVA. Thacker, a heavy machinery operator with Knoxville’s 917 union, became one of hundreds of people that TVA co... Read more