Click the link to read the article on The Denver Post website (Elise Schmelzer). Here’s an excerpt:
August 31, 2025
Three million gallons of acidic mine drainage flooded into the Animas River basin 10 years ago, turning the southern Colorado river a mustard yellow and making international headlines. Caused by federal contractors working to treat pollution from the Gold King Mine, the accidental release of water laden with heavy metals prompted the creation of a Superfund site and a reckoning with lingering environmental harms from the area’s mining legacy, including hundreds of abandoned mines high in the San Juan mountains. A decade later, community members and Environmental Protection Agency staff are still grappling with the long-term cleanup of the area’s mines and tailings piles. Forty-eight of them now make up the Bonita Peak Mining District Superfund site outside Silverton. They continue to leak heavy metals into local waterways and soils.
“We’re pleased that the EPA is at the point where in the next 18 months, we’re going to see some decisions made about how those sites are cleaned up,” said Chara Ragland, the chair of the site’s community advisory group.
Studies have since shown that the Aug. 5, 2015, Gold King spill had little long-term environmental impact because the water already contained so many heavy metals from runoff and other mines. Locals hope the federal Superfund cleanup process will improve water quality in the Animas River basin so that it will be cleaner than before the Gold King incident.
