The 2 Year Anniversary of the Gold King Mine Spill

Your Water Colorado Blog

Gold_King_Mine_Entrance The Gold King Mine Spill released heavy metals to the Animas River. Photo courtesy of the EPA

The Gold King Mine spill occurred two years ago on Aug. 5, 2015 in Silverton, Colorado. The U.S. Environmental Protection Agency (EPA) was investigating the release of water from the mine and was hoping to remove material that had collapsed at the mine’s entrance. During removal, the loose material gave way, opening the mine tunnel and causing thousands of gallons of pressurized water to gush out of the tunnel and into Cement Creek, a tributary to the Animas River. This water had a low pH and was saturated with heavy metals which caused the Animas River to be slightly lower in pH as well. Luckily, the Animas watershed and abandoned mine lands had been studied extensively by U.S. Geological Survey (USGS) and Colorado Department of Natural Resources. This provides a baseline for water…

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