Ecology, local clean air agencies, and Tribes can restrict indoor and outdoor burning under certain conditions. Air quality burn bans protect people when the air is unhealthy. Fire safety burn bans ...

At Ecology, every day is Earth Day. Our mission is to protect, preserve, and enhance the environment for today and for future generations. Our staff work across the state to accomplish this mission, ...

Discharges of excess nutrients — particularly nitrogen — to the Puget Sound from public domestic wastewater treatment plants (WWTPs) are contributing to low oxygen levels in the Puget Sound and the ...

Looking for a service provider? Here is a excel spreadsheet that lists certified UST service providers.This list is updated quarterly. Disclaimer: We do not assume any liability for the accuracy or ...

Stormwater can pick up pollution from factories and businesses. Those contaminants are carried into waterways and harm fish and other aquatic life. The National Pollutant Discharge Elimination System ...

You can help protect the environment by telling us if you see a problem that is causing pollution. We respond to issues that pollute and damage land, air, and water. The sooner we know, the sooner we ...

Use this portal to filter and search for all of our regulatory information. We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & ...

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 ...

The Washington Public Records Act, Chapter 42.56 RCW, requires us to promptly make identifiable public records available for inspection and provide records upon request. We adopted rules, Chapter ...