Holiday closure Monday May 28: Most county offices will be closed in observance of Memorial Day.

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.

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Puget Sound shoreline next to the West Point Treatment Plant, Seattle
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Brightwater Plant test

This video is published on Vimeo and should be accessible from all devices including iPhone and iPad. Video length 17 seconds. May 2011

Brightwater Plant test from King County DNRP on Vimeo.

First flow of clean test water to come into the Brightwater Plant from the Influent Pump Station in Bothell, 2.8 miles away!

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