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EPA Region 10 (Pacific Northwest)

Serving Alaska, Idaho, Oregon, Washington, and 271 Tribal Nations

Sawtooth Mountains near Stanley, Idaho.
Sawtooth Mountains near Stanley, Idaho.

Key Issues

  • Bristol Bay
  • Coeur d'Alene Basin
  • Columbia River
  • Lower Duwamish River
  • Portland Harbor
  • Puget Sound
  • Tribal programs

Learn about other EPA priorities in our Region 10 states:

  • EPA in Alaska
  • EPA in Idaho
  • EPA in Oregon
  • EPA in Washington

Organization

  • Contact Region 10
  • Visit our offices
  • Organization chart
  • Jobs (USAJOBS)

Social Media

  • @EPARegion10 on X
  • @EPANorthwest on Facebook
  • EPA Northwest on Instagram

News Releases

  • EPA selects new site for Lower CDA Basin cleanup waste

  • EPA announces $1.7M for transboundary watershed grants

  • EPA awards four Alaska Native organizations $6.7M to assess, clean up legacy contamination

  • EPA Region 10 enforcement cases April-June 2025

  • EPA adds J.H. Baxter site in Oregon to Superfund National Priorities List

View all news releases for Region 10

Public Notices

  • Proposed settlement with Shoreside Petroleum for Clean Water Act violations in Alaska

  • Proposed wastewater permit for the City of Toppenish on the Yakama Reservation

  • EPA to review cleanup at Spokane Junkyard and Associated Properties Superfund site in Washington

  • Proposed Settlement with Alaska House of Yamaha for Safe Drinking Water Act Violations

  • Proposed Settlement with the Washington State Department of Corrections for Clean Water Act Violations

View all public notices for Region 10

About EPA

  • Our Mission and What We Do
  • Headquarters Offices
  • Regional Offices
  • Labs and Research Centers
  • EPA Organization Chart
  • EPA History
Contact EPA
Contact EPA to ask a question, provide feedback, or report a problem.
Last updated on April 22, 2025
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