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EPA Region 8 (Mountains and Plains)

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EPA Region 8 Map

Map of EPA Region 8, which contains Montana, North Dakota, Utah, Wyoming, South Dakota, and Colorado. Montana North Dakota Utah Wyoming South Dakota Colorado
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Serving Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming, and 28 Tribal Nations

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Related Information
  • Media Office Inquiries
    • Media Page
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  • Organization Chart

Job Openings in Region 8

  • Internships Available at EPA
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  • Contact Region 8
    303-312-6312 or in the Region 8 states 800-227-8917
  • 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 Information Center
  • FOIA Requests
  • 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

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

Events in Region 8

There are no scheduled public events.

Region 8 News

  • EPA Announces $800,000 for Small Businesses Developing Environmental Technologies in Colorado, Wyoming

  • Columbia Falls Aluminum Corporation, LLC Agrees to $57 million cleanup of former smelter site in Montana 

  • EPA Invests in Making America Healthy Again with Announcement of $1.6 Million to Improve Drinking Water in Colorado, Montana, North Dakota, South Dakota, Utah and Wyoming

  • EPA Announces $1.9 Million in Grants to Assess and Cleanup Communities in North Dakota

Additional News

All Region 8 News Releases June 2019–Current 

Region 8 Public Notices

  • EPA Seeks Comments on the Preliminary Finding of No Significant Impact for the Weber River Watershed Resilience Partnership Project

  • Draft UIC Class VI Geologic Carbon Sequestration Permit - Carbon Storage Solutions, Front Range 1-1, Weld County, Colorado

  • Opportunity to Comment on Draft Permit for the KODA GNB Midstream, LLC, Willow Creek Compressor Station

  • Draft UIC Class V Industrial Permit – Nwestco, LLC., Petro Waste Solutions, Denver County, Colorado


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U.S. EPA Mountains and Plains Region

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Last updated on July 13, 2026
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