Puget Sound

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 of challenges related to population growth and development, as well as habitat loss and multiple sources of pollution.

We work in collaboration with a wide range of local and tribal governments, other state and federal agencies, non-profit organizations, and private sector partners to use the best available science and research to better understand and counter challenges facing Puget Sound.

We are building lasting partnerships, working together, pooling resources, and making smart investments to restore, protect, and preserve the health of Puget Sound, now and for future generations.

Ecology proposes nutrient control requirements for three large wastewater treatment facilities

We invite you to comment on nutrient contol updates to wastewater treatment permits for King County’s West Point, the City of Everett, and the City of Bellingham.


Nutrients like nitrogen are essential to life. But they’re too much of a good thing when it comes to the health of Puget Sound. Excessive nitrogen from human sources is entering the Sound and causing algae blooms. When the algae die and decay, they reduce the amount of oxygen in the water, which can harm fish, orcas, and other... Continue reading this blog...

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