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

King Street Center
201 S. Jackson St., Suite 505
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:

  • Treatment Plant Site: The treatment plant will be designed to provide treatment and disinfection of wastewater
  • Conveyance Facilities: These are the pipelines and pumps that carry wastewater to and from the treatment plant
  • Marine Outfall: The marine outfall will discharge effluent (treated wastewater) from the Brightwater treatment plant into Puget Sound.

Map of Brightwater project facilities
Map of Brightwater project facilities

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