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Central Puget Sound drainages
Information and services for the area of King County where surface water runs off to local drainages and into Central Puget Sound.
The Central Puget Sound Watershed of King County includes areas draining into small creeks that flow directly into Puget Sound including Vashon-Maury Island. Other major river basins that ultimately drain from King County into Puget Sound include the Cedar River-Lake Washington Watershed, the Sammamish Watershed, the Snoqualmie-Skykomish Watershed, the Green River Watershed, and the White River Watershed.
Central Puget Sound
Puget Sound marine monitoring
Find studies and plans related to the unique, productive, and diverse marine environment of Central Puget Sound.
Nutrients in Puget Sound
King County invests in water quality monitoring and analysis to better understand how excess nitrogen affects marine life. This is part of a shared commitment to protect Puget Sound marine life.
Surface water management
Report flooding, drainage, and water quality problems
Directory of where and how to report surface water problems.
Miller and Walker Creeks stewardship
Sub-drainage in the Central Puget Sound Watershed. Whether you live right next to the streams or a mile away, your actions can help improve water quality and reduce stormwater in the creeks and beyond.
Poverty Bay Pollution Identification and Correction
Poop in the water isn't good for people, animals, or the environment. We are working with you to find and fix sources of poop pollution.
Septic system maintenance and side sewer repair rebates
Rebates for work to maintain septic systems and repair side sewers for qualifying locations and/or incomes.
Vashon/Maury Island
King County provides local government services for Vashon/Maury Island, and this page provides environmental services and information.
Lakes statistics and water quality
Salmon recovery
Salmon Recovery in WRIA 9 - Green/Duwamish and Central Puget Sound
Find plans, actions and results for recovering threatened salmon species in the Green/Duwamish and Central Puget Sound drainage area.
Wastewater treatment
History of wastewater treatment in King County
Learn how and why King County's regional wastewater treatment system was created.
Vashon Treatment Plant
Overview of King County's wastewater treatment plant serving Vashon Island.
West Point Treatment Plant
Overview of King County's West Point wastewater treatment plant on Puget Sound.
Combined sewer overflow treament
Facilities and rain gardens that treat stormwater combined with wastewater in the Seattle area.
Publications
Science documents, Central Puget Sound Watershed
Find reports, presentations, plans and more about Central Puget Sound watershed from 1998 through this year.