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As at all of our clean water facilities, King County Wastewater Treatment Division continuously looks for ways to keep Brightwater efficient and reliable. We design and build projects to:

  • Meet updated regulations
  • Save energy
  • Improve water quality
  • Increase capacity for growing communities
  • Improve efficiency and reliability
  • Repair, replace, or upgrade equipment which has come to the end of its life

Inside the treatment plant, projects help us manage today’s wastewater flows in a treatment system built for the future. Many of these projects help conserve energy while maintaining or even increasing performance. Brightwater engineers and operators continuously scan the plant for energy savings.

These projects range in size from small lighting retrofits to large-scale process improvement projects requiring major construction. For example, in 2019 we completed a project to upgrade key components of the existing membrane aeration system. Aeration is necessary to keep the bacteria that processes wastewater thriving.

Currently, there are many projects underway in the treatment plant to save energy and increase efficiency.

Outside the Brightwater Treatment facility on King County’s property, you may see projects to maintain trail access, public art, and more. Environmental projects help us to manage the landscape and meet permit requirements.

Staff on top of digestersView of the solids management area of the treatment plant

Contact us

24 hour emergency and odor reporting:   206-263-9500
Administration:  206-263-9465

22505 State Route 9 S.E.
Woodinville, WA 98072-6010

Directions and map

If you’d like to receive email or text updates on the Brightwater Treatment Plant: