Colorado Mine Spill: Toxic Wastewater Leak Far Exceeds First Estimates

August 10, 2015 3:04 PM

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A spill that sent toxic water seeping from an abandoned Colorado gold mine and turned a river orange is three times as large as first thought, the Environmental Protection Agency said.

The EPA said Sunday that 3 million gallons of wastewater had spilled from the mine, and the sludge was still flowing. The EPA said that health risks to humans and aquatic life were not yet clear.

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