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Coal Ash Sludge Ponds in Colstrip, Montana

Protecting Wildlife from Toxic Coal Ash in Montana and Beyond

9/7/2012 // By Alexis Bonogofsky

For decades, the coal-ash sludge ponds at the Colstrip power plant in southeastern Montana have been leaking harmful chemicals into groundwater, a blatant and well-documented violation of state and federal laws. Four years ago, nearby ranchers and residents won a […] Read more >