We invite interested members of the public, local, and tribal governments to review and comment on required 5-year updates to industry-written oil spill contingency plans. Washington Administrative ...

Toxics researcher Alex Gipe collects filters from a sampling device to detect sources of flame retardants. Spring is here, and tiny, young Chinook salmon will begin their incredible journey from the ...

This is a reissuance WestRock Tacoma water quality permit. We invite you to review and comment on the draft National Pollutant Discharge Elimination System water quality permit reissuance for WestRock ...

We invite interested members of the public, local, and tribal governments to review and comment on required 5-year updates to industry-written oil spill contingency plans. Washington Administrative ...

Our team of scientists collects data on sediments and invertebrate communities found at the bottom of Puget Sound, to document condition and change over time. Why do we monitor the bottom of Puget ...

Much of Puget Sound appears to be vibrant, clean, and healthy, but our scientific studies show that this unique marine estuary has a variety of environmental issues and problems. Changing water ...

We use a peer-reviewed, state-of-the-science computer modeling tool called the Salish Sea Model to conduct nutrient pollution studies. These studies help us understand how, where, and when nutrients ...

Puget Sound is critical to our environment, culture, and economy. About two-thirds of the state’s population lives in the Puget Sound region. Our nation’s second largest marine estuary faces a number ...

The Action Agenda for Puget Sound sets cleanup priorities for contaminated sites at priority bays and any location within a half mile of Puget Sound. We're overseeing — and, in many cases, helping to ...

Generate new environmental data. Analyze existing environmental data. Model the environment. These examples of approved Quality Assurance Project Plans (QAPPs) describe different types of projects in ...

Our robust quality assurance, or QA, system gives confidence in our regulatory and scientific decisions. We rely on quality assurance policies, guidance, and requirements to monitor, improve, and ...

Restoring riparian systems in Puget Sound is a multifaceted approach led by several different agencies, organizations, Tribes, and volunteer efforts. There are many different opportunities to ...