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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

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.

Spotlight

floodicon_crop Flood preparation in the Green River Valley, including wastewater frequently asked questions (FAQs).

clipboardKing County’s wastewater treatment plants are good neighbors that pose few if any noticeable impacts to the surrounding community, according to the results of the 2009 Near Neighbor Survey. View news release.

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.

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Reporting and viewing problems

Doing business with WTD

Learning about projects (under construction or in planning)

Getting involved in protecting the environment--citizen action

Related agencies

Regional committees

Regional wastewater treatment plants

News

Nov. 12, 2009 -- Celebrate sanitation on 'World Toilet Day' -- Free treatment plant tours, Nov. 19

Oct. 26, 2009 -- Environment, economy benefit from sale of green power to Seattle City Light

Oct. 21, 2009 -- Work under way to protect clean-water infrastructure in the Green River flood zone

Oct. 21, 2009 -- Employees respond to overflow near Interurban Pump Station

Oct. 20, 2009 -- Executive Kurt Triplett commends King County Council for approval of $34.6 million flood funding request

Oct. 19, 2009 -- County clean-water facilities get good marks from neighbors

Oct. 15, 2009 -- Power outage causes sewer overflow in West Seattle

Oct. 11, 2009 -- Crews respond quickly to wastewater overflow at temporary pump station in Bellevue

Oct. 8, 2009 -- Keep a lid on it! Wastewater agency warns against opening manholes during flooding

More WTD News Releases | DNRP News Releases

Resources