Public Works

Wastewater Treatment

Home  Departments  Public Works  Sewer & Wastewater


Wasterwater treatment is a vital service provided by public works that helps keep our community healthy and our environment safe. The City’s recently upgraded wastewater treatment plant cleanses approximately 868 million gallons of water each year used for activities like washing dishes, bathing, and using the toilet. This prevents potentially harmful contaminants from entering local waterways like Goldsborough Creek, Shelton Creek, Oakland Bay, and Hammersley Inlet.

When water flows down a sink or toilet drain into the City’s sewer lines, it eventually ends up at the wastewater treatment plant for processing. During treatment, organic solids are extracted and the remaining wastewater is run through digesters with microorganisms that destroy most of the disease-causing bacteria. The wastewater then passes through powerful ultraviolet sterilizers that eliminate any remaining bacteria before it is safely returned to the environment.

The City of Shelton has historically taken extra precautions to ensure that the wastewater treatment plant exceeds the Washington State Department of Ecology testing standards. The City is sensitive to the nearby shellfish industry and the surrounding environment, and is committed to maintaining an elevated standard of performance. The City of Shelton’s wastewater treatment facility consistently earns an Outstanding Performance Award from the Department of Ecology.

027Public Works Superintendent Brent Armstrong explains operations of the City's primary
wastewater treatment facility to members of the City Council,
city staff, and community.

Figure 1, 2, and 3 below demonstrate the City’s commitment to ensuring that the wastewater treatment facility continues to operate at an elevated standard of performance, above and beyond the minimum requirements established by the State of Washington Department of Ecology.
The City of Shelton wastewater treatment plant is located near Eagle Point at 1701 Fairmount Avenue, Shelton, WA 98584.


Need to talk to someone ASAP? In the event of an emergency during business hours, please call Public Works directly at (360) 426-6442 to report the incident. After hours, please call MACECOM at (360) 426-4441. Examples of Public Works incidents worth reporting include (but aren’t limited to): serious water leaks, fallen trees in a roadway, sewage backing up into a household or business, water across a roadway or flooding buildings, hazardous material spills on a roadway, or dangerous street conditions (sinkholes, potholes, etc.).