Northwest Region

Topics of interest in the Northwest Region

Puget Sound

About two-thirds of the state’s population lives in the Puget Sound region. Our nation’s second largest marine estuary faces a number of challenges related to population growth and development, as well as habitat loss and multiple sources of pollution. Learn more about the problems Puget Sound faces and what we're doing to protect this environmental, cultural, and economic resource. See more about Puget Sound.

Cleaning up contamination

In Washington, we've identified over 13,000 contaminated sites in need of cleanup. In the Northwest Region, there are over 3,000 identified or active sites. We make progress daily. Cleanup work at over 4,000 formerly-contaminated sites has been completed in the Northwest Region's seven counties. Learn more about our contamination cleanup work.