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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Cleaning Up: Schedule updated for Shelton’s Goose Lake cleanup site
The Goose Lake site is contaminated with wastes from Rayonier's old pulp mill that once operated in Shelton next to Oakland Bay.
Cleaning Up: How dredging is cleaning up Ridgefield’s Lake River
This year, Ecology and the Port of Ridgefield have been using advanced cleanup techniques to remove pollution at the Pacific WoodTreating cleanup site.
Around the Sound: Work Underway at the Rayonier Mill Cleanup Site
You may have noticed more activity recently at the Rayonier Mill cleanup site in Port Angeles.
Around the Sound: Rayonier Mill cleanup on schedule
The Rayonier Mill cleanup is on schedule.
Feb. 23, 1970 - A step closer to Ecology's creation
On Feb. 23, 1970, Gov. Dan Evans signed into law a bill creating Washington's new Department of Ecology, set to open July 1 of that year.
Investing in communities to turn blighted properties into affordable housing

Ecology is funding projects in six cities to help clean up contaminated properties – and help with the housing crisis.

$500,000 to help beat back the recycling crisis
Ecology’s Recycling Development Center has awarded $504,073 to 10 local governments and one university to help develop and grow markets for recycled materials.
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.
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.
Ecology welcomes public to offices
On March 21, Ecology no longer requires appointments to visit offices.