• Puget Sound
• Columbia River
• Superfund sites in Washington:
  • Lower Duwamish Waterway (Seattle)
  • Hanford
  • Search for Superfund sites where you live
• Upper Columbia River Remedial Investigation and Feasibility Study
• Lower Yakima Valley Groundwater
• Wastewater (NPDES) Permits in Washington
• Impaired Waters and TMDLs in Region 10

Tribal

• Tribal Programs
• Burn bans on reservations

News

• All news releases for Washington

Washington is part of EPA's Region 10. Learn more about EPA Region 10.

Contact Information

• Contact EPA's Region 10 Office

State Agencies

• Washington Department of EcologyExit
• Washington Department of HealthExit