Gilt

CO Mine Wastewater Spill Highlights SD Cleanup Plan

Aug 13, 2015
Amy Varland

A recent spill of 3 million gallons of mine wastewater from an EPA Superfund Site in the Rocky Mountains turned Colorado’s Animus River orange.

South Dakota and other states across the west are dotted with abandoned mines that are now being cleaned up by government regulators.

Currently the Gilt-Edge Superfund Site in the Northern Black Hills has 68 million gallons of mine wastewater stored in holding ponds.     

But EPA and state officials are undertaking a $50 million project to reduce the annual cost of water treatment.