Sunnyvale Water Pollution Control Plant Secondary Treatment and Dewatering Facilities Project

The City of Sunnyvale is advancing the Cleanwater Center Project, a central facility to consolidate administration, laboratory, operations, and maintenance functions for the Donald M. Somers Water Pollution Control Plant. Located on the north side of Carl Road, this new building will replace the existing Administration Building, Laboratory/Control Building, Operator/Maintenance Building, and Compliance Inspection Building, streamlining operations and improving efficiency. The project evolved from the 2016 Program Environmental Impact Report for the WPCP Master Plan and represents a key step in modernizing the city’s wastewater infrastructure. Concurrently, the Sunnyvale Water Pollution Control Plant Secondary Treatment and Dewatering Facilities Project is being prepared for future procurement, with a forecast posted in May 2026, indicating upcoming construction activities aimed at upgrading treatment capacity and sludge processing. The project is being managed by the City of Sunnyvale’s Public Works department, with Dennis Ng serving as the primary point of contact and Karen Lancelle of ESASSOC as the managing planner, ensuring coordination between city staff and consulting teams. The work will take place at the plant’s existing site in Sunnyvale, California, with a zip code of 94089.