Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Emergency Response to Gold King Mine Release

Red and Bonita Administrative Record

In 2014, EPA prepared a formal Administrative Record to support the September 24, 2014 Action Memorandum for the Red and Bonita Mine Site.  This Administrative Record has been available in Silverton, Colorado and EPA’s Denver Records Center.

  • Preliminary Evaluation of Remedial Alternatives Using a Reactive Transport Model: Cement Creek/Animas River (pdf) (7.54 MB)
  • Report of Structural Geologic Investigation, Red & Bonita Mine, 2007 (pdf) (1.14 MB)
  • Risk Assessment Status and Results (pdf) (1.53 MB)
  • Animas River Report, 2010 (pdf) (1.21 MB)
  • Upper Animas River Surface Water Toxicity Testing Report April 2013 Surface Water Collection (pdf) (8.43 MB)
  • Animas River Sediment Toxicity Testing Report December 2012 Sediment Collection (pdf) (16.24 MB)
  • Final Upper Animas River 2012 Surface Water Toxicity Testing Report (pdf) (23.29 MB)
  • Preliminary Evaluation of Feasibility for Water Impounding Concrete Bulkheads, Red and Bonita Mine, San Juan County Colorado (pdf) (1.23 MB)
  • Field Activities Report - Mine Entry, Red and Bonita Mine Site (pdf) (5.43 MB)
  • AR Collection cover sheet and index of documents (pdf) (693.95 KB)
  • Approval and Funding for a Removal Action at the Red and Bonita Mine Site in San Juan County (pdf) (15.85 MB)
  • Cover letter for the administrative record file for Red & Bonita Mine Removal Action in San Juan County, CO. (pdf) (513.02 KB)
  • Community Involvement Plan: Red & Bonita Mine Site Removal Action (pdf) (3.31 MB)
  • Red and Bonita Action Memo -Sunnyside Gold Comments Figure 3 (map) -Revised (pdf) (4.21 MB)
  • Notice of public comment opportunity published in Silverton Standard, Nov. 20, 2014 (pdf) (292.39 KB)
  • Notice of public comment opportunity published in Silverton Standard, Dec. 18, 2014 (pdf) (853.51 KB)
  • Comments from Sunnyside Gold Corporation on Administrative Record -Red and Bonita Removal Site (pdf) (123.79 KB)
  • EPA response to comment (pdf) (73.38 KB)
  • List of documents in this adimistrative record (pdf) (311.54 KB)

Emergency Response to Gold King Mine Release

  • Frequent Questions
  • Press Releases and Updates
  • Gold King Mine Settlements
  • Learn How the Spill Happened
Contact Us About Emergency Response to the Gold King Mine Release
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on November 4, 2024
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.