It’s important to us that our wastewater facilities to be a good neighbor to the people who live, work and play near them. Part of being a good neighbor means that we work hard to control odors / smells that come from the wastewater treatment process—which can get gassy! Why does sewage smell? Treating dirty water at…
Built in 1966, West Point Treatment Plant is the largest wastewater treatment plant by volume in Washington state, and the third largest by average daily flow on the West Coast. Like much of the King County wastewater system, it’s more than 55 years old and many of it’s components reach their “end of life” each…
Power disruptions during heavy rainfall As a clean water agency, our mission is to protect public health and the environment. We work 24/7 to serve over 1.8 million residents and clean about 190 million gallons of water per day. Even in massive rainstorms that generate more volume than the system can handle, we feel any…
Our business is unconventional – and that works for a lot of our employees We get it. Any of us who work here at King County’s Wastewater Treatment Division (WTD) have been asked what we do for a living – and we’ve seen the smirks and heard the giggles when we explain we help run…
Did you know you have sewer equipment you’re responsible for taking care of? And it’s not just plumbing. Every house or building has a sewer pipe that connects it to the larger sewer system. Often called a “side sewer”, your house sewer pipe can be made out of clay, iron, plastic, concrete or brick depending…
It’s important for King County facilities to be a good neighbor to the people who live, work and play near us. At the County’s South Treatment Plant in Renton, we work 24-7 to treat the water that people use in homes and businesses before releasing the treated water back to Puget Sound to become part…
As we move into the rainy season, our crews are on the job 24/7 to ensure the region’s wastewater treatment service is well-prepared for an emergency or stormy weather. To make sure we’re ready for what wet weather can bring, we have inspected and replaced equipment, updated control systems and increased training of treatment plant…
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…
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…
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 Wastewater Treatment 