December 23, 2025
Progress across communities, waterways, and projects in 2025
Steady work strengthened the system, from capital upgrades to river cleanup and daily operations.
June 11, 2025
Building the local economy through clean water projects
Clean water projects are creating more than infrastructure. They're creating opportunity. See how King County is supporting local jobs, small businesses, and a more equitable future.
August 23, 2023
Massive Pumps at West Point Treatment Plant Get a Tune Up
The pumps that push wastewater through West Point Treatment Plant in Seattle are massive and old. In service since 1993, it was time for a tune-up. By tapping into the expertise of local repair shops, the project was fast tracked…
September 29, 2021
Major construction in Mercer Island & Bellevue to start early next year
If you live, play, work, or drive on Mercer Island, or if you live or recreate near Enatai Beach Park or Mercer Slough, you will see our construction activities over the next few years.
October 11, 2019
Lake Hills/NW Lake Sammamish Sewer Upgrade Project – Join us for the latest details at Open houses on 10/22 and 10/24 in Redmond
There’s a lot of construction work planned for the Redmond area in the next few years. One of these projects is King County’s Lake Hills/NW Lake Sammamish Sewer Upgrade. King County needs to upgrade a regional sewer pipe that is…
November 26, 2018
King County’s Georgetown Wet Weather Treatment Station celebrates Platinum Achievement Award for Sustainability
King County’s Georgetown Wet Weather Treatment Station (WWTS) has earned the coveted “Platinum” rating from the Institute for Sustainable Infrastructure’s Envision rating system. This is the first Platinum-awarded Envision project in Washington and recognizes the County’s commitment to sustainable communities…
March 10, 2017
The Changing Face of Capital Project Management
King County Wastewater Treatment Division (WTD) is facing the same workforce challenges that confront many clean water utilities across the United States. Hard working senior employees throughout our organization are retiring. We need to recruit new employees and help them onboard to…
October 7, 2016
Meet Your Utility of the Future- Today
On September 27, 2016, WTD received recognition of the work that turns our future vision into reality.
