King County South Treatment Plant

Utility of the Future Today & awards for outstanding performance

King County Wastewater Treatment Division (WTD) has received national recognition as a Utility of the Future Today for its beneficial use of Loop® biosolids. WTD is one of 65 water utilities being recognized for transformational work in community engagement, watershed stewardship, and recovery of resources such as water, energy, and nutrients. The Utility of the Future…

stainless steel scrubbers

The case of the metal strands – teamwork leads to the source of treatment system damage

When wastewater comes into the Carnation Wastewater Treatment Plant, it first passes through a process that removes larger particles like trash and grit from the water. Next, the water flows through a process that involves tanks containing membranes. These membranes are fine filters (like spaghetti) that only allow water molecules to flow through. When staff…

Industrial Maintenance Mechanic

Our operators keep treating wastewater and protecting public health

King County Wastewater Treatment Division (WTD) treats wastewater from people and businesses to protect people’s health and the environment. We operate three regional treatment plants, two local treatment plants, and four wet weather treatment plants. In 2018, we treated an average of 175 million gallons of sewage every day. Our operations staff (Ops) are as vital to the…

King County’s Georgetown Wet Weather Treatment Station celebrates Platinum Achievement Award for Sustainability

King County’s Georgetown Wet Weather Treatment Station (WWTS) has earned the coveted “Platinum” rating from the Institute for Sustainable Infrastructure’s Envision rating system. This is the first Platinum-awarded Envision project in Washington and recognizes the County’s commitment to sustainable communities and the environment. The Georgetown WWTS project is under construction in Seattle’s Georgetown neighborhood and…

Sedimentation tanks

Finding hidden value at the bottom of a sedimentation tank

What’s the real cost? Have you ever been undecided when buying an appliance, trying to choose between a standard or select model? You probably wished you had some data to help you make an informed choice. Well, by studying costs and crunching the numbers, maintenance engineers at West Point determined that what looked like a…

Chief Operating Officer meets with treatment plant employees

Cross-posted from KC Employee News Casey Sixkiller, Chief Operating Officer for King County Executive Dow Constantine, has been out meeting employees and leaders at worksites across the county since joining Executive Constantine’s Senior Leadership Team in February to learn more about all of the County’s lines of business, and he recently met with employees at…

Brown is the new ‘green’ as South Plant becomes a major local source of renewable biofuels

Purified renewable natural gas produced at South Treatment Plant in Renton is now a clean diesel alternative for local commercial trucks. Each year, the volume of renewable natural gas produced at the South Treatment Plant is the energy equivalent of about 1.7 million gallons of diesel fuel.

Public tours resume at the West Point Treatment Plant

Welcome to West Point this summer! If you’re curious about how water systems work, or if you’d like to learn about the things you can do every day to help protect water quality, sign up for a Saturday tour or drop-in for a visit on the fourth Tuesday of the month from 4 to 6:30 p.m.