To address critical project needs, King County submitted a case for an alternative method of project delivery called “progressive design build.” This contracting method brings designers and builders to the same table at the early stages of project development.
July 28, 2022
The use of an RPAS—or Remotely Piloted Aircraft System—by the County began about six years ago, but it is only recently that WTD came to own and operate our own devices.
King County’s Georgetown Wet Weather Treatment Station (WWTS) earned the coveted “Platinum” designation from the Institute for Sustainable Infrastructure’s Envision rating system.
May 27, 2022
If you live in the City of Carnation, do you know where water goes after you send it down the drain?
Unless you use a septic system, the water you send down the drain travels to King County’s Carnation Treatment Plant where we process about 111,000 gallons of wastewater every day.
January 24, 2022
Planning ahead to treat wastewater
We have some of the largest wastewater treatment plants in the country. It takes a decade or more to build large wastewater projects, so it’s important we plan ahead. That’s where our planning staff and programs come in. Recently, we…
December 2, 2021
Building a path for the future during a challenging time
At King County Wastewater Treatment Division (WTD), we consider it a win whenever we can partner with local agencies and organizations to accomplish a goal. In 2021, WTD’s partners at City of Bellevue Parks navigated the ongoing pandemic to create…
November 8, 2021
Green stormwater infrastructure & CSOs: In-depth media coverage
King County is working to control all our combined sewer overflows (CSOs) through several strategies. One way we are reducing CSOs is through natural drainage solutions, also known as green stormwater infrastructure (GSI), which use plants, trees, and soil to…
October 12, 2021
As rainy weather approaches, we are on the job 24/7
Our crews are on the job 24/7, 365 days a year to ensure the region’s wastewater treatment service – and that remains true as we move into the rainy season. Workers are ready to respond around the clock and work…
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. Our relationship to water is what…
September 15, 2021
Making projects sustainable, resilient, and equitable
King County’s Wastewater Treatment Division (WTD) is being recognized for its commitment to sustainable communities and the environment. WTD’s Sunset / Heathfield Pump Stations and force main upgrade project was awarded an Envision® Silver Award this month for project sustainability.…
West Point Treatment Plant The West Point Treatment Plant processes about 100 million gallons of wastewater each day, and up to 440 million gallons during heavy rains. While the plant’s operators are working hard to keep the treatment process flowing smoothly, a momentary lapse of power supply quality can bring vital equipment operations to a hard stop. That’s why in February 2021, King County Executive…
August 19, 2021
Wastewater employees’ thoughtful approach earns industry award
Our employees plan, design, build, and operate treatment facilities to clean wastewater for the region. Planning and building new wastewater infrastructure is complex. It can easily take a decade or more to go from identifying a project is needed, to…