DUMPING COAL IN THE RIVER

Subject: 630 tons of coal dumped in Anacostia river by CSX

if each railroad car handles 90 tons of coal, then 630 tons is the total amount of coal CSX dumped into the river by 'accident'. when is it going to be cleaned up? we know CSX is going to extract it's cars fast but what about the responsibility for 630 tons of toxic coal and the environmental contamination? how is the 630 tons of coal suddenly dropped into a spot going to effect the the PCB on the river bottom floor? i suppose since it's CSX, they'll attempt to get away with it for as long as they can and stick it to the taxpayer to pay for the clean up.