Holiday closure Monday May 28: Most county offices will be closed in observance of Memorial Day.

Find comprehensive services, data and information related to stormwater and non-point source pollution in King County, Washington.

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Stormwater Services and Information for King County, Washington

Contact us

If you have a watercourse on your land that you feel needs attention, or if you have any questions about the Agricultural Drainage Assistance Program, please contact Brian Sleight, Supervising Engineer, King County Stormwater Services Section.

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