Wastewater Treatment Division
King County, Washington
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.
Learn about what makes WTD a Utility of the Future Today and our vision, mission and values.
Pay capacity charge
Rent a Brightwater Center room
Report a problem
View CSO discharge status in Seattle area
Join in education & tours
Explore resource recovery
View capital projects
Learn about finances & rates
View more services
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
Department of Natural Resources
Public Health - Seattle and King County
King County has launched a multimedia platform to bring people on a virtual tour of the Environmental Laboratory's marine monitoring runs. Learn about our field scientists' decades-long work to monitor the health of Puget Sound.
View current King County WTD incident responses.