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Broken pipe causes surface overflow from King County’s York Pump Station


Natural Resources and Parks
Public Affairs

Broken pipe causes surface overflow from King County’s York Pump Station


King County Wastewater Treatment Division’s York Pump Station in Redmond experienced an overflow as a result of a broken pipe joint. The staff acted to bypass broken piping and quickly returned the station to normal operations and the surface-level overflow did not reach any waterbodies.


King County reported a sewer overflow at the York Pump Station on Thursday, Dec. 17 after discovering a break in a 2-inch pipe connected to a large sewer main. The overflow lasted a little over an hour and a half, spilling an estimated 50,000 gallons along nearby railroad tracks, a parking lot and a large grassy drainage area.

Located at Northeast 124th Street in Redmond, the pump station is operating normally. Crews quickly cleaned the area with a large power vacuum, and there is no standing water, though any public area has been posted with caution signs. Much of the property affected by the overflow is private.

King County has notified health and regulatory agencies, and Environmental Lab staff are evaluating the site to determine if there is any water quality testing to perform, as most of the water was absorbed into the ground. 

Marie Fiore, 206-263-0284 or

About the King County Wastewater Treatment Division
King County’s Wastewater Treatment Division protects public health and enhances the environment by collecting and treating wastewater while recycling valuable resources for the Puget Sound region. The division provides wastewater treatment services to 17 cities, 17 local sewer districts and more than 1.8 million residents across a 420-square-mile area in King, Snohomish and Pierce counties.