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Our regional wastewater treatment system has a big job to do. Not only does it operate around the clock to sustain a healthy environment, this vital infrastructure supports economic development that enables our region to thrive.

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At King County Wastewater Treatment Division, our mission is to protect public health and enhance the environment by collecting and treating wastewater while recycling valuable resources for the Puget Sound region.
Regional wastewater treatment plants

Brightwater, near Woodinville
South Plant, Renton
West Point, Seattle

Regional committees

MWPAAC - Metropolitan Water Pollution Abatement Advisory Committee

RWQC - Regional Water Quality Committee

Resources

Local sewer agencies

King County online directory

Public Records Officers 

Department of Natural Resources

Public Health - Seattle and King County

Wastewater Treatment Division StaffJoin our team. Come make clean water with us!


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