Southwest Region

Ecology has four regional offices. TheSouthwest region includes Clallam, Clark, Cowlitz, Grays Harbor, Jefferson, Mason, Lewis, Pacific, Pierce, Skamania, Thurston, and Wahkiakum counties.
Ecology has four regional offices. TheSouthwest region includes Clallam, Clark, Cowlitz, Grays Harbor, Jefferson, Mason, Lewis, Pacific, Pierce, Skamania, Thurston, and Wahkiakum counties.

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World Wetlands Day

It's World Wetlands Day help us celebrate by learning more about Wetlands and how we're protecting them. 

Grant to help build coastal climate resilience

We received an $850,000 grant to support an innovative partnership to build climate resiliency in Washington's coastal areas.

Looking for water right documents?

We've streamlined how we post water right documents and decisions. Our new online portal has most documents in one location for each of our four regions  

Cleaning up: Tackling dioxins and PAHs in Budd Inlet
Ecology and the Port of Olympia are amending a legal agreement that requires the port to clean up contamination in sediment — the mud, sand, and silt under the waters of Budd Inlet.
Washington’s water supply outlook
Because of a May heatwave, state watersheds lost almost half their snowpack in just 18 days. Now summer river forecasts in some watersheds predict low flows.
Headed out on your boat? Pump out your sewage, don't let it float!
Planning some time on your boat as summer kicks off? Here’s the last of our water-related reminders: don’t empty your boat’s holding tank into Puget Sound or inland waters.
Environmental Restoration Grants open for 2023

Ecology accepting grant applications for restoration projects.

Ecology gets six federal grants to protect 855 acres of coastal wetlands
We've secured close to $6 million in National Coastal Wetlands Conservation Grants to protect about 855 acres of coastal wetland habitat.
Pilot projects designed to curb bank erosion showing success in Chehalis River Basin
The Office of Chehalis Basin has invested in projects that have dual flood reduction and ecosystem benefits. We recently completed two riverbank erosion management pilot projects.
Expedited rulemaking to amend state SEPA rules
We are amending state SEPA rules to increase the exemption levels local governments can incorporate into their policies and procedures for apartments, small houses, and attached homes.