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.

Staff Contacts

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

Barton CSO Control Project

Back to Project library

Green stormwater infrastructure (GSI) links

Links to other green stormwater infrastructure (GSI) projects and resources locally, regionally and around the country.

Local

Regional

National

Events (external)

Free rain garden workshops in April and May 2012. Learn more.
Free rain garden classroom workshops
: Learn how to design and install a rain garden that will fight pollution, reduce flooding, add beauty, and attract beneficial pollinators. Rain gardens function like a tiny forest to soak up and filter polluted runoff from downspouts, driveways, and other hard surfaces