Kingston Fossil Plant coal fly ash slurry spill
The Kingston Fossil Plant coal fly ash slurry spill was an environmental and industrial disaster that occurred on Monday December 22 , 2008 , when a dike ruptured at a coal ash pond at the Tennessee Valley Authority's Kingston Fossil Plant in Roane County , Tennessee , releasing of coal fly ash slurry . 
<triplet> Kingston Fossil Plant coal fly ash slurry spill <subj> December 22, 2008 <obj> point in time