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EPA Region 8 (Mountains and Plains)

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EPA Region 8 Map

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

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
  • 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
  • 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 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 $5 Million in Grants to Assess and Cleanup Communities in Montana

  • EPA Announces $9.1 Million in Grants to Assess and Cleanup Communities in Colorado

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

  • EPA Announces $3.5 Million in Grants to Assess and Cleanup Communities in Utah

Additional News

All Region 8 News Releases June 2019–Current 

Region 8 Public Notices

  • Proposed Settlement with CF&I Steel, L.P., dba Rocky Mountain Steel Mills for Clean Water Act Violations

  • Record of Decision (ROD) is signed for Billings PCE Superfund Site

  • Draft UIC Class II Produced Fluid Disposal Permit - Middle Fork Energy Uinta, LLC, SWD 34-19-722, Uintah and Ouray Indian Reservation, Utah

  • Draft UIC Class V Aquifer Exemption Expansion and Area of Review Expansion – Montalban Oil and Gas Operations, Jody Field 34-1 & 34-2, Pondera County, Montana

  • Draft UIC Class II Produced Fluid Disposal Permit – Middle Fork Energy Uinta, LLC, SWD 14-20-722, Uintah and Ouray Indian Reservation, Utah

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U.S. EPA Mountains and Plains Region

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Last updated on June 25, 2026
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