

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.

February 15, 2023
Operator-in-Training Program recognized with 2023 National Environmental Achievement Award
The National Association of Clean Water Agencies (NACWA) recognized the program for “initiatives that have made a remarkable impact on environmental protection, the advancement of the water sector, and the betterment of their communities.”

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.

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 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.