We invite your comments on the Draft Mitigated Determination of Nonsignificance (MDNS) that was issued for the SkyNRG Sustainable Aviation Fuel (SAF) Manufacturing Facility Project in Walla Walla ...

We propose to approve Syngenta Seeds' air quality notice of construction (NOC) application. We will hold a public comment period if one is requested. Syngenta Seeds submitted a notice of construction ...

We invite interested members of the public, local, and tribal governments to review and comment on significant updates to industry-written oil spill contingency plans. Washington Administrative Code ...

Water in eastern Washington is a scarce resource, and tracking groundwater sources and supplies is a critical part of making sure there is enough water to meet everyone’s needs. A new legal ...

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'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.