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Capital improvement projects

For questions about the Wastewater Treatment Division website, please send an e-mail message or contact us at:

King Street Center
201 S. Jackson St., Suite 500
Seattle, WA 98104-3855
Phone: 206-684-1280
Fax: 206-684-1741
Telecommunication device for the deaf (TTY): 711

Get Directions to our office location in Seattle, Washington.

Staff Contacts
Puget Sound shoreline next to the West Point Treatment Plant, Seattle

Brightwater Project - sign up for project updates

Brightwater Treatment System Banner

Sign up for project updates

Project Updates

If you would like to receive updates about construction activities and project updates, please contact us by email at brightwater@kingcounty.gov

Be sure to let us know what sites and activities you want to know about.

  • General project updates
  • the treatment plant site
  • North Creek Portal in Bothell
  • North Kenmore Portal in Kenmore
  • Ballinger Way Portal in Shoreline
  • Point Wells Portal and marine outfall construction north of Richmond Beach
  • Brightwater reclaimed water - south section construction

Be sure to include your name and address if you'd like updates mailed to you instead of getting them via email.

Contact us if you need more information about Brightwater.

King County Brightwater Project

22505 State Route 9
Woodinville, WA 98072
E-mail: Brightwater
Phone: 206-263-9453
TTY Relay: 711

Driving directions to Brightwater project office.