EPA Region 10 (Pacific Northwest)
Serving Alaska, Idaho, Oregon, Washington, and 271 Tribal Nations
Coronavirus (COVID-19) Information
- Visit EPA’s Coronavirus (COVID-19) website for information and resources.
- There are practical limitations on the ability of EPA personnel to collect and respond to mailed “hard copy” correspondence. Learn how to reach us.
On this page:
- Bristol Bay
- Columbia River
- Puget Sound
- Tribal programs
- Coeur d'Alene Basin/Bunker Hill
- Portland Harbor
Confederated Tribes of Coos, Lower Umpqua, and Siuslaw Indians receive EPA approval to administer Clean Water Act programs on reservation and trust lands
EPA Announces $4.5 Million in Grants Available for Tribes to Replace Diesel Equipment and Reduce Harmful Emissions
Adrenaline Performance LLC pays $48,600 penalty for selling, installing emissions controls ‘defeat’ devices