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EPA Region 8 (Mountains and Plains)

Serving Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming and 28 Tribal Nations

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Related Information
  • Media Office Inquiries
  • Region 8 Administrator
  • Organization Chart

Job Openings in Region 8

  • Internships Available at EPA
  • Search job openings in EPA Region 8
  • How to apply
  • Contact Region 8
    303-312-6312 or in the Region 8 states 800-227-8917
  • Español: 202-564-9924
  • Criminal Investigation Division: 303-312-6134 (24-hour hotline)
  • TTY Call-in Line: 800-439-2370
    EPA Business Partner, Mass Relay (sign language interpreters, access needs)
  • EPA Hotlines (Nationwide)
  • Region 8 Laboratory
  • Visiting Region 8
  • Region 8 Library
  • Region 8 Information Center
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  • Environmental Sustainability at the Region 8 Headquarters Building 

Mailing Addresses

US EPA, Region 8
1595 Wynkoop Street
Denver, CO 80202-1129

EPA Montana Operations Office
Federal Building
10 West 15th Street, Suite 3200
Helena, MT 59626
406-457-5000
866-457-2690 (toll free)

EPA Regional Laboratory
Denver Federal Center, Building 25
Lakewood, CO 80225

Popular Resources

  • Silver Bow Creek/Butte Area Superfund Site
  • Bonita Peak Mining District Superfund Site
  • Colorado Smelter Superfund Site
  • Brownfields 
  • Drinking Water
  • Superfund sites in Colorado, Montana, North Dakota, South Dakota, Utah, and Wyoming
  • Tribal Affairs Branch

Environmental Info

Get state environmental info on the following topics: Air, Water, Enforcement, Cleanups, Toxic Releases, Pesticides and Grants.

  • Colorado
  • Montana
  • North Dakota
  • South Dakota
  • Utah
  • Wyoming

Region 8 News

  • EPA celebrates 100 days with 100 environmental actions

  • EPA, state approve uranium mining project in Wyoming aquifer

  • EPA Addresses E-10 Standards, Allows for Nationwide Year-Round E15 Sales

  • Cyrus M. Western appointed as EPA Mountains and Plains Regional Administrator

  • EPA announces $110M loan to enhance drinking water reliability in drought-prone region of Utah

Additional News

All Region 8 News Releases June 2019–Current 

Get EPA Region 8 News by Email

Region 8 Public Notices

  • Public Comment opportunity on a proposed cleanup plan for the HWY 24 Mill Site

  • Underground Injection Control Program Aquifer Exemption Denial for Aethon Energy Operating LLC, Marlin 29-21 WDW, Fremont County, Wyoming

  • Notice of Intent to Amend Environmental Restrictions at Broderick Wood Products Superfund Site

  • Clean Water Act Certification for the Northwest Eagle Butte Drinking Water Pipeline Project

  • Consent Agreement with City of Boulder for Clean Water Act Violations in Colorado

  • Currently on page 1
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Region 8 Facebook

 

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Last updated on April 2, 2025
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