We monitor water quality at nearly 100 river and stream stations throughout the state to understand the health of waterways. Our science offers residents and policymakers credible data to make ...

To keep yourself and your pets safe, avoid water with visible algae and follow all posted warnings and closures.

You are invited to comment on the 2025 update to Washington's Water Quality Management Plan to Control Nonpoint Sources of ...

This low-growing plant is a sure sign of spring and probably the most well-known wetland plant in Washington. Skunk cabbage, also known as swamp lantern, has a strong odor and is one of the first ...

Precipitation has been near normal, but that is largely due to a wet fall. Precipitation since January has been 78% statewide ...

You're invited to review and provide comments on Clean Vehicles Program rulemaking documents. Ecology is considering amendments to Chapter 173-423 WAC, the Clean Vehicles Program rule. Washington law ...

Drop in during this two-hour open house to learn more about this cleanup site and speak with Ecology staff. Snacks will be provided. Whidbey Marine & Auto Supply operated as a retail gasoline service ...