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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 Treatment System Banner

Brightwater Treatment System - Facilities

The Brightwater Wastewater Treatment System includes:

Map of Brightwater project facilities
Map of Brightwater project facilities

Staging the 48” and 66” Forcemain Pipes onto the Pipe Carrier in the Treatment Plant Portal to be transported into the Tunnel for installation -- click to view more photos
View project photos

Installation of membrane bioreactor filters (MBRs) at the treatment plant (April 2011)
View project videos

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