By Mathy Stanislaus
Today, we are releasing a new publication, One Year After the Gold King Mine Incident: A Retrospective of EPA’s Efforts to Restore and Protect Communities. The report details our efforts — including the projects and groups we have funded — to protect the areas around the Gold King Mine (GKM) and prevent another spill like this from happening at other EPA work sites at mines across the country.
We continue to be accountable for the release, which occurred as a result of our work to investigate the mine. Since the accident, we have dedicated more than $29 million to respond to the release and to provide for continued monitoring in the area. Over the past year, we have remained committed to distilling important lessons from the incident, and are working on a more permanent solution to acid mine drainage in the Upper Animas Watershed. We have improved and tested stakeholder notification lists, instituted a headquarters review and state consultation process for all mine work plans prior to starting work at a site, provided grant assistance to foster collaboration and help support state and tribal water quality management programs, and are developing a national report on best practices for hardrock mine remediation. We have worked with communities within the Bonita Peak Mining District area for many years on long-term solutions to address the estimated discharge of more than 5 million gallons per day of acidic mine influenced water to the Upper Animas River watershed. In April, we proposed a Superfund National Priorities Listing for the Bonita Peak Mining District (which includes Gold King Mine) and are working to finalize the listing this fall.
As Assistant Administrator for our Office of Land and Emergency Management, I can say that tackling the national environmental issue of abandoned mines is one of the toughest challenges we face. There are no overarching federal statutes or regulations for addressing the environmental contamination from abandoned hardrock mines. When requested by state or tribal partners, our Superfund program has been used to investigate and remediate abandoned mines that present a high risk to human and environmental health. A 2015 Government Accountability Office report estimates that we spend anywhere from 7 to 52 times more at mining sites than at other types of Superfund sites.
Overall, the scale of this problem is striking. There are at least 161,000 abandoned hardrock mines in the western U.S. states and Alaska. Water draining from these types of mines and mine tailings are often highly acidic and release heavy metals such as zinc, lead, cadmium, copper and aluminum into the groundwater and surface waters the public relies on for drinking, agricultural irrigation and recreation.
The legacy of abandoned hardrock mines continues to be a source of complex challenges for our and the other federal and state agencies working to address this impact over the long-term. We thank all of our federal, tribal, state and local partners for their contributions to this first year of work following the GKM incident. We are strongly committed to working together to achieve long-term solutions to prevent future releases and protect our vital water resources. For more information, please visit: https://www.epa.gov/goldkingmine.