Next spring, 490 acres of polluted mud will be dredged out of a stretch of the Hudson River so toxic that fish are considered unfit for consumption, according to the Buffalo Times.

GE will dredge 450 acres of toxic river mudTo kick off the six-year project, General Electric is building a wharf, processing facility, and rail yard to remove a portion of the river bottom, which the company contaminated with PCB-laden wastewater decades ago.

Once all the tools for cleanup are in place, GE will set dredges in motion 24 hours a day and place PCB collection devices in tunnels beneath the river.