Skip to main content
King County logo

The Vashon Treatment Plant runs 24 hours a day, seven days a week and is staffed by one full-time operator.

Site operation is supported  by the mechanics, electricians, instrument technicians, management, administrators and planners at the South Treatment Plant (in Renton). Learn more about career opportunities in WTD.

rsz_15228272987_15c1fa6ce7_zTreatment plant operator does walk-through of clarifiers

View more photos on our Flickr site  .

Contact us

24 hour emergency and odor reporting:   206-263-1760
Administration:  206-463-7318 

Address
9615 S.W. 171st St.
Vashon, WA 98070

Directions and map