skip to main content

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

Merging with King CountyDr Reverend Martin Luther King County Logo

On Nov. 3, 1992, King County voters approved a ballot resolution to merge Metro and King County. On Jan. 1, 1994, Metro joined King County as the Department of Metropolitan Services.

Effective January 1996, Metro's old Water Pollution Control Department, including the wastewater treatment function, became part of the county's new Department of Natural Resources. Metro's old Transit Department became part of the county's new Department of Transportation. And functions of Metro's old Technical Services Department and Finance, Budget and Administration Department merged into the new Natural Resources, Transportation and other county departments.

In 1999, the King County Council approved the Regional Wastewater Services Plan, a 30-year comprehensive program to protect the environment and public health. The plan includes a new treatment facility to serve north King County and south Snohomish County.

Related links