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Pete McKay, San Juan County commissioner in Colorado, looks at the site, Monday, August 10, 2015, where the Gold King Mine breach occurred, north of Silverton, Colo. Local officials in towns downstream from where millions of gallons of mine waste spilled into the San Juan River are demanding answers about possible long-term threats to the water supply. The 3 million gallons of mine waste included high concentrations of arsenic, lead and other heavy metals. Workers with the EPA accidentally unleashed the spill Wednesday as they inspected the abandoned mine site. (Photo by Jon Austria/The Daily Times via AP Photo)
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