Officials in Wisconsin say that a bluff at a local coal-fired power plant collapsed Monday, sending a cascade of soil, coal ash and vehicles into Lake Michigan.
The Milwaukee Journal Sentinel reports on the contamination.
“Based on our land use records it is probable that some of the material that washed into the lake is coal ash,” We Energies spokesman Barry McNulty said. “We believe that was something that was used to fill the ravine area in that site during the 1950s. That’s a practice that was discontinued several decades ago.”
Coal ash is a toxic residue left over from burning coal to generate power.
The environmental clean up company Clean Harbors has been called in, and an oil sheen has appeared on the water surface. Officals say 1,500 feet of containment boom has been dispatched in the area to contain the oil sheen.
Officials are unsure why or how the bluff collapsed.