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Documents Related to the Gold King Mine Release

EPA takes its commitment to transparency seriously. Since the Gold King Mine incident, EPA has received a large volume of requests for documents related to the response. This webpage holds a chronological collection of relevant documents released by EPA, many of which are responsive to the requests from stakeholders, local communities, the media, the general public and members of Congress.


Timeline of Released Documents

October 4, 2015 Update:

EPA added Initial Administrative Record documents related to the Gold King Mine. View Initial Administrative Record documents here.

October 1, 2015 Update:

EPA added contract documents related to the Gold King Mine. View contract documents here.

September 22, 2015 Update:

EPA added contract documents related to Gold King and Red and Bonita Mines. View contract documents here.

September 18, 2015 Update:

EPA added contract documents related to Red and Bonita Mines. View contract documents here.

September 17, 2015 Updates:

EPA Administrator Gina McCarthy testified today before the U.S. House of Representatives Oversight and Government Reform Committee and Natural Resources Committee. View the prepared testimony here.

EPA released two documents:

  • Incident Command Transition Plan, Gold King Mine Release Incident, Animas River Operational Area
  • Post-Gold King Mine Release Incident Conceptual Monitoring Plan For Surface Water, Sediments and Biology

View the documents here.

September 16, 2015 Update:

EPA posts new surface water and sediment sampling data for locations along the San Juan and Animas rivers. View the data here.

EPA Administrator Gina McCarthy today testified before two U.S. Senate committees.

September 14, 2015 Update: EPA releases three sets of documents:

  • Gold King Mine Response Regional Sampling Plans (Interim Use). These plans are considered interim use plans because they are constantly being updated to address daily and weekly updates in sampling activities. View interim sampling plans here.
  • Contract Documents related to Gold King and Red and Bonita Mines. View contract documents here.
  • Documents related to landowner consent for EPA access to Gold King Mine property. View the documents here.

September 11, 2015 Update: EPA posts congressional testimony by EPA Assistant Administrator Mathy Stanislaus before the U.S. House of Representatives Science, Space, and Technology Committee. View the testimony here.

September 8, 2015 Update: Documents related to mine work and stakeholder notifications:

  • Interim Guidance for Continuation of Work and Development of List of Superfund Mining and Mineral Processing Sites
  • Review of Regional and Area Contingency Plans for Downstream Notifications
  • Gold King Mine Stakeholders Alert and Notification Plan

View the documents here.

August 31, 2015 Update: Documents related to prior Upper Animas Mining District National Priorities List discussions. View the documents here.

August 28, 2015 Update: Documents related to legal agreements, grant funding, contract work, and response summary from Colorado employee on Gold King Mine. View the documents here.

August 27, 2015 Update: EPA releases a contractor's Draft Technical Memo of the August 5 incident, including photographs, an EPA On-Scene Coordinator's description of the events depicted in the photographs, and an EPA phone duty officer's memorandum to the file about the incident and certain subsequent events. View the documents here.

August 21, 2015: EPA releases the first collection of Gold King Mine file documents:

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