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 ...

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 ...

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 ...

You can now subscribe to automatic email updates about specific cleanup sites. These notices will let you know if we change a ...

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 ...

Ecology Spills Response Team members Chelsea Krimme, Josh Coulter, Courtney Serad, and Dave Byers (left to right) conduct a ...

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 ...