As Washington’s environmental protection agency, we are deeply committed to protecting, preserving, and enhancing Washington’s environment for current and future generations. Through innovative ...

Our mission is to keep Washington water clean. Use this site to find out if a lake, stream, or marine beach near you is healthy or polluted. Learn about water cleanup plans and how we’re addressing ...

When a proposal is under environmental review, the public, community and business groups, local and tribal governments, state agencies, and other entities with expertise can review and comment on SEPA ...

The Water Right Application Portal is here! We created a user-friendly application portal to fill out, pay, sign, and submit your application for a new water right online. Learn more on our recent ...

Find answers to common questions about the application process, where to find accommodations for submitting an application, how to calculate work experience and more. How do I request accommodations ...

Stormwater is rain and snow melt that runs off surfaces such as rooftops, paved streets, highways, and parking lots. As water runs off these surfaces, it can pick up pollutants that contaminate local ...

We improve and protect water quality, manage and conserve water resources, and effectively manage coastal and inland shorelines to assure our state has sufficient supplies of clean water for ...

Ecology is at work statewide to protect your air, water and quality of life. Learn more about our regional work.

From 2016–21, the city of Spokane worked with our Brownfields Program to clean up and redevelop areas of the park. The partnership leveraged public and private funds to increase the park’s diversity ...

The Anderson Landfill, owned by DTG Recycle, is located at 41 Rocky Top Road in Yakima. At Ecology, our job is to protect clean air, drinkable water, and healthy places to live. To meet those goals, ...

Our Southwest Region (SWRO) includes Clallam, Clark, Cowlitz, Grays Harbor, Jefferson, Lewis, Mason, Pacific, Pierce, Skamania, Thurston, and Wahkiakum counties. Puget Sound is critical to our ...

Natural Resource Damage Assessment and Restoration (NRDAR) is a tool that we and other natural-resource trustees use to restore, recover, or protect natural resources and habitats affected by ...