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  2. EPA in the Pacific Islands

EPA in the Pacific Islands: Topics and Resources

EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal Nations.

Additional Resources

  • About EPA in the Pacific Southwest
  • Laboratory Services
  • Library Services
  • Media Center
  • Public Notices, Meetings and Events
  • Report a Violation
  • American Samoa Environmental Protection Agency
  • CNMI Bureau of Environmental and Coastal Quality Website
  • Guam Environmental Protection Agency

Air

  • Approved Air Quality Implementation Plans
  • Clean Air Act Permitting in the Pacific Islands
  • West Coast Collaborative: Partnering to Reduce Diesel Emissions
    A public-private partnership committed to reducing diesel emissions and advancing clean technologies.

Land

  • Brownfields
  • Cleanup Sites in American Samoa
  • Cleanup Sites in the CNMI
  • Cleanup Sites in Guam
  • Corrective Action at Johnston Atoll
  • Remedial Action Plan (RAP) to Manage and Treat Unexploded Ordnance in the CNMI

Water

  • Impaired Waters and TMDLs
  • NPDES Permits in EPA’s Pacific Southwest (Region 9)
    • NPDES Permits in American Samoa
    • NPDES Permits in Guam
    • NPDES Permits in the Commonwealth of the Northern Mariana Islands
    • Wake Island
  • Ocean Dumping
  • Typhoon Mawar Story Map

EPA in the Pacific Islands

  • Remedial Action Plan, Marpi Point, Saipan
  • Johnston Atoll
  • Geospatial Data Input
  • Typhoon Mawar
Contact Us About EPA in the Pacific Islands
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on May 28, 2025
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