You can now subscribe to automatic email updates about specific cleanup sites. These notices will let you know if we change a site’s status, upload documents, or ask for comments about the site.

Washington Administrative Code (WAC) 173-182 and 173-186 requires oil handling facilities, pipelines, vessels and railroads to have a state-approved oil spill contingency plan that ensures their ...

Swamps are wetlands containing woody plants like trees and shrubs. Forest and shrub swamps are important habitats, especially ...

Chemical exposure is another major threat. Growers often use pesticides, fertilizers, and banned substances that contaminate ...

We receive some frequently asked questions about the Vessel Sewage No Discharge Zone (NDZ). For more information please see the main No Discharge Zone webpage or contact the project lead below. What ...

This is a sounding board meeting of city and county planning staff to share concerns, questions, and ideas about the existing WAC language and what they would like to see incorporated into the updates ...

This is a sounding board meeting of city and county planning staff to share concerns, questions, and ideas about the existing WAC language and what they would like to see incorporated into the updates ...

We are hosting an online public meeting to discuss the Draft Remedial Investigation Report and respond to your questions. Register for the Zoom meeting. Zoom online public meeting: 6 – 7 p.m.

We've submitted our latest Water Quality Assessment to EPA and we've opened the Call for Data to work on the next assessment of state waters.

A new competitive grant program from the Washington Department of Ecology will fund projects at 13 landfills across the state to better measure and contain methane before it escapes into the ...