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.
January 18, 2022
Fine tuning wastewater treatment
Over the last year and a half, staff at our Brightwater Treatment Plant in Woodinville optimized the treatment process in a way that improved staff safety and the performance of the membrane filters.
December 2, 2021
Building a path for the future during a challenging time
In 2021, WTD’s partners at City of Bellevue Parks navigated the ongoing pandemic to create a big win for trail users and youth employment.
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.
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.
King County Executive Dow Constantine signed an emergency declaration and the King County Council authorized up to $65 million to provide West Point with more reliable power. The team behind the West Point Treatment Plant Power Quality Improvement Project has been working diligently to identify an innovative, sustainable supplemental power solution.
January 20, 2021
Working with Sammamish Plateau: No regional capacity limits and Diversion Project moving ahead
We clean wastewater for the region Pipes from homes and businesses in this area connect to local sewer systems. Then those local utility pipes connect to our bigger pipes, which carry wastewater to one of our regional treatment plants where…
October 30, 2019
Help us protect recovering landscapes
Some colorful new signs may catch your eye at former King County Wastewater Treatment Division (WTD) construction sites. WTD’s Mitigation and Monitoring (M/M) Program is installing new signs to alert people and help them protect recovering landscapes. WTD’s project teams…
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…