East King County Projects
The county is continuing construction upgrades to this aging pump station and force main serving City of Kirkland sewer customers. The project will increase pumping capacity, replacing aging equipment, and install larger diameter pipes. Construction started in September 2011 and will be completed in 2014.
Currently, flows from the North Lake Sammamish basin are routed to the South Treatment Plant through the East Side Interceptor (ESI). This project will divert up to 43 million gallons per day of wastewater from the North Lake Sammamish basin and send these flows to the Brightwater Treatment Plant. This project is necessary to maintain the ability of the ESI to convey peak flows during a 20-year storm event. The ESI is expected to reach peak flow capacity in 2021. Construction is scheduled to begin in 2017.
The Sunset and Heathfield Pump Stations Upgrade Project is one of two options being evaluated under the South Lake Sammamish Basin Alternatives Analysis Project to ensure King County can efficiently and effectively accommodate Bellevue and Issaquah’s wastewater treatment needs into the next century.
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