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 demonstrates WTD’s commitment to sustainability. This project consists of building a wet weather treatment station, conveyance pipelines, and outfall structure to treat combined sewer overflows prior to discharge into the Lower Duwamish Waterway. The project will reduce contamination and improve aquatic habitat and overall water quality of the Duwamish River.

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The Institute for Sustainable Infrastructure’s Envision rating system assesses sustainability in five categories: quality of life, leadership, natural world, resource allocation, and climate and resilience. These contribute to positive social, economic and environmental impacts on a community during the planning, design and construction of infrastructure projects.

On-site work for Georgetown WWTS began in April 2017 and construction is expected to be completed in 2022. Once operational the station will be able to treat up to 70 million gallons of combined stormwater runoff and wastewater per day, water that would otherwise have discharged directly into the Duwamish River without treatment during storm events.

The King County Wastewater Treatment Division (WTD) models leadership in sustainable development every day. The division turns biogas from the wastewater treatment process into clean energy; cleans and recycles wastewater solids into a nutrient-rich soil builder for plants; and incorporates green building practices into construction projects.

To learn more about this project, Click Here

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