Which Central Appalachian coal producer was responsible for a spill that dumped 306 million gallons of slurry into tributaries of the Tug Fork River? 
Martin County coal slurry spill: The Martin County coal slurry spill was an accident that occurred after midnight on October 11, 2000 when the bottom of a coal slurry impoundment owned by Massey Energy in Martin County, Kentucky broke into an abandoned underground mine below. Massey Energy: Massey Energy Company was a coal extractor in the United States with substantial operations in West Virginia, Kentucky and Virginia.
i don't know