

February 23, 2023
‘Loop Truck Shop’ improves drive time for cross-state biosolids delivery
Drivers battle Seattle traffic and cross the state to deliver truckloads of biosolids to farm and forestry customers. King County's Wastewater Treatment Division is speeding up the drive time for biosolids delivery with a new truck facility in North Bend.

August 16, 2022
Kent Meridian High School Rocks a Rain Garden
Kent Meridian students, teachers, and community members celebrated the completion of the rain garden June 2, 2022. Students have led the project from the beginning and were involved in all aspects of garden design.

August 11, 2022
Celebrating our award-winning treatment plants
All five of King County’s wastewater treatment plants received 2021 National Association of Clean Water Agency’s Peak Performance Awards, honoring multiple consecutive years of compliance with state and federal effluent permit limits.

August 1, 2022
Brightwater Public Art: Grandfather’s Wisdom
The carved and painted cedar sculpture, originally constructed in 2012, has been a centerpiece at the site for the last decade. Now, Artist Andrea Wilbur-Sigo is continuing her work to restore the large-scale sculptural installation at her studio.

July 28, 2022
Flying Solo
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.

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.

May 2, 2022
How King County businesses help protect public health & the environment through our Industrial Waste program
Not all types of waste can be filtered out during the treatment process, which is why our Industrial Waste Program is in charge of preventing pollution from entering the wastewater system in the first place.

January 25, 2022
City Soil Farm: A Record Year for White Center Food Bank Donations
City Soil Farm, located at King County Wastewater Treatment Division South Plant is a small farm that produces food for the community and demonstrates the benefits of turning wastewater into valuable resources like recycled water and Class A biosolids.

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.