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Wastewater Treatment

King County, Washington

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: 206-477-5371
Fax: 206-684-1741
Telecommunication device for the deaf (TTY): 711

Get Directions to our office location in Seattle, Washington.

Staff Contacts

How King County Wastewater Treatment Division manages capital projects

King County Wastewater Treatment Division (WTD) manages capital projects based on the the international standards of the Project Management Institute (PMI) as described in part in the publication titled A Guide to the Project Management Body of Knowledge (PMBOK), Third Edition. These standards provide guidance through the five phases of a project: planning, preliminary design, final design, implementation and closeout.

King County WTD moved to this standard in 2007 to improve project delivery within schedule and budget.

Project Life Cycle for a King County WTD capital project

Project Life Cycle for King County Wastewater Treatment Division capital projects

For more information