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.
Wastewater Treatment Division
King County, Washington, protects water quality and prevents water pollution by providing wastewater treatment to 17 cities and 17 local sewer utilities. The county's Wastewater Treatment Division serves about 1.5 million people, including most urban areas of King County and parts of south Snohomish County and northeast Pierce County. More about our system and facilities.
Flushing wipes may cost you, They're handy, tidy and a great way to clean up messes and prevent germs, but if you don't dispose of them correctly, they can be a costly convenience. August 18, 2009, NWCN.com
The county's wholesale monthly sewer rate will remain at $31.90 for 2009-2010. Effective Jan. 1, 2010, the monthly capacity charge for new connections will increase from $47.64 to $49.07. View June 16, 2009 news release.