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EPA Region 8 (Mountains and Plains)

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

field of lupine at Wyoming's National Elk Refuge with mountain in the background. USFWS public domain.

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Related Information
  • Media Office Inquiries
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Job Openings in Region 8

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  • 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
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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
    • Environmental Justice in Region 8
    • 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.

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    Region 8 News

    • EPA awards $500,000 to the Town of San Luis, Colorado, to clean up and revitalize Main Street properties  

    • EPA awards nearly $1.5M for property assessment, cleanup and revitalization in Magna and Salt Lake City  

    • EPA awards $2.25M for cleanup and revitalization of properties across eastern Montana  

    • EPA awards $500,000 to San Miguel County, Colorado, to clean up and revitalize properties in Norwood, Telluride and Ophir  

    • EPA awards $1 million for cleanup and revitalization of abandoned hospital in the City of Dunseith, North Dakota 

    Additional News

    All Region 8 News Releases June 2019–Current 

    Get EPA Region 8 News by Email

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    Region 8 Public Notices

    • Opportunity to Comment on Proposed Settlement between U.S. EPA and the Blackfeet Tribe for alleged Clean Water Act violations on the Blackfeet Indian Reservation of Montana, Docket No. CWA-08-2023-0006

    • Opportunity to Comment on Notice of Discharge Requirements for Monument Powder Coating in Colorado

    • Opportunity to Comment on Draft Permit for the Town of Browning Wastewater Treatment Lagoon in Montana

    • Opportunity to Comment on Draft Permit for the Rosebud Hotel and Casino Wastewater Treatment Facility in South Dakota

    • UIC permit applications for injection wells on the Fort Berthold Indian Reservation

    See all Region 8 public notices

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    Last updated on March 30, 2023
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