Coal ash swirls on the surface of the Dan River as state and federal environmental officials continued their investigations of a spill of coal ash into the river in Danville, Va., Wednesday, Feb. 5, 2014. Duke Energy estimates that up to 82,000 tons of ash has been released from a break in a 48-inch storm water pipe at the Dan River Power Plant in Eden N.C. on Sunday. (AP Photo/Gerry Broome)