King County Wastewater Treatment Division

Two men in hardhats and safety clothing stand smiling at the camera. A railing and trees are in the background.

Infrastructure Operations

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.

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A person in a orange safety slicker and navy blue pants sweeps with a broom around concrete structures and industrial equipment

Operations

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.

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Women in a hardhat, safety vest, and goggles at a wastewater treatment plant pointing at a jar of water

Community

March 22, 2022

Making ‘potty talk’ entertaining, interactive, and educational on World Water Day!

When we are young, we are sometimes told “No potty talk,” but at King County Wastewater Treatment Division (WTD), we believe in more educational potty talk!

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A woman wastewater operator in a orange safety shirt, mask, gloves and googles, holds up water samples

Operations People

February 4, 2022

Wastewater could be a great career for you & we will PAY & train you to find out!

We needed a way to bring in talented, new people and help them get certified as quickly as possible. So we started an Operator-in-Training (OIT) program to find and train our own operators.

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Community

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.

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A graphic with trees that shows how the Treatment Planning Program intersects with other parts of our utility's business

Infrastructure Operations

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.

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A worker in a safety vest, hardhat, and mask, inspects the magnesium hydroxide tank at the Brightwater treatment plant. The person is standing on blue scaffolding above the big, white tank

Infrastructure Operations

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.

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Well KEPT youth employees wear masks and safety vest as they help build a trail detour

Community Infrastructure People

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.

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People planting plants in a rain garden lined with mulch

Community People

November 17, 2021

WaterWorks grants $5 million to community water quality improvement projects for 2022-23

68 projects aimed at protecting and improving regional water quality will be launched in the new year, thanks to funding through King County’s WaterWorks Grant Program.

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Students in the Clean Water Ambassador teen intern program stand in front of a building with masks on

Community

November 15, 2021

Wastewater education team wins award for inclusive youth employment

King County Wastewater Treatment Division was presented with the Youth Employer of the Year Award from the Governor’s Committee on Disability Issues and Employment on October 26, 2021.

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Community

November 8, 2021

Green stormwater infrastructure & CSOs: In-depth media coverage

King County is working to control our combined sewer overflows through several strategies. One way we're reducing CSOs is through natural drainage solutions, also known as green stormwater infrastructure, which use plants, trees, and soil to soak up the rain.

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A rain garden showing a shallow depression in the ground, with mulch, rocks, and plants

Community

October 25, 2021

Celebrating RainWise pollution prevention milestones in the King County basin

As the days get shorter and we anticipate more rain in our forecast, we are celebrating a timely milestone—we just mailed our 1,000th RainWise rebate check in one of the eligible combined sewer overflow basins!

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Clean Water Stories

from King County

If you live in the City of Carnation, do you know where water goes after you send it down the drain?

How King County businesses help protect public health & the environment through our Industrial Waste program

Making ‘potty talk’ entertaining, interactive, and educational on World Water Day!

Wastewater could be a great career for you & we will PAY & train you to find out!

City Soil Farm: A Record Year for White Center Food Bank Donations

Planning ahead to treat wastewater

Fine tuning wastewater treatment

Building a path for the future during a challenging time

WaterWorks grants $5 million to community water quality improvement projects for 2022-23

Wastewater education team wins award for inclusive youth employment

Green stormwater infrastructure & CSOs: In-depth media coverage

Celebrating RainWise pollution prevention milestones in the King County basin

Clean Water Stories

from King County

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