Ecology is at work statewide to protect your air, water and quality of life. Learn more about our regional work.

Storage tanks that house hazardous chemicals onsite are in poor condition, posing a risk for chemical spills that could harm human health and the environment. The tanks rest near a river, which ...

Two Thurston County property owners were fined $204,000 by the Washington Department of Ecology for unpermitted shoreline development along the Deschutes River near Yelm. Chuck and Austin Rogers ...

A new legal designation establishes the boundaries for a future groundwater co-management agreement in the Pasco Basin. Water in eastern Washington is a scarce resource, and tracking groundwater ...

Our Northwest Region (NWRO) includes Island, King, Kitsap, San Juan, Skagit, Snohomish, and Whatcom counties. About two-thirds of the state’s population lives in the Puget Sound region. Our nation’s ...

Since we started tracking cleanup site data, we’ve listed over 14,000 contaminated or formerly contaminated sites. While over half of them have been cleaned up, that still leaves more than 6,400 ...

Our Southwest Region (SWRO) includes Clallam, Clark, Cowlitz, Grays Harbor, Jefferson, Lewis, Mason, Pacific, Pierce, Skamania, Thurston, and Wahkiakum counties ...

This facility is an enclosed, unsold food waste processing and recovery facility in Longview, Washington. This facility will create 30 to 40 jobs for the Longview area. The facility will use anaerobic ...

Our Central Region (CRO) includes Benton, Chelan, Douglas, Kittitas, Klickitat, Okanogan, and Yakima counties. Waters of the state belong to the public and can't be owned by any individual or group.

Ecology monitors multiple cleanup sites at Joint Base Lewis-McChord (JBLM). This page focuses on per- and polyfluoroalkyl substances (PFAS) contamination in the groundwater. JBLM is in Pierce County, ...

About 700 residential properties were potentially affected by smelter contamination in the upland area. We have now completed sampling on all the properties that agreed to be sampled (more than 550).

Our team receives many questions regarding the hydrofluorocarbons (HFCs) rule, restrictions, and requirements. To best support the transition away from HFCs, we've consolidated educational resources ...