Site work and new construction of a water / sewer project in Sunnyvale, California. Conceptual plans call for the construction of a water / sewer project; and for site work for a water / sewer project.

This project entails constructing a new anaerobic digester, Digester No. 5. Digesters are part of the solids treatment process in the Water Pollution Control Plant (WPCP). The sludge produced by the secondary treatment process in the WPCP is anaerobically treated by digesters to make the sludge safe for disposal in landfills after it is thickened and dewatered. The major project elements include the following: (1) one anaerobic digester equivalent in size to Digester No. 4 (about one mega gallon); (2) approximately 50 linear feet of utilidor to connect the digester to the utilidor system; (3) digester mixing system with a digester mixing pump; (4) digester heating system with a heat exchanger, digester sludge circulating pump, digester hot water circulating pump, and a raw sludge hot water pump; (5) digester sludge pumping system with a digester supernatant pump; and (6) influent sludge grinder. Digester No. 5 is Project 4.4 in the Sunnyvale Cleanwater Program SCWP) Master Plan adopted by City Council in 2016. The Engineering Design phase of the project starts in FY 2024/25 and ends in FY 2025/26, while the Construction phase of the project starts in FY 2025/26 and ends in FY 2027/28. As September 22, 2022, this project is currently in the FY 2022 - 2023 CIP. Funding for this project is allotted in the city's capital improvement plan for construction FY 2024 - 25. A firm timeline has not been established; however, construction is scheduled for Fiscal Year 2024 - 25. *Project information has been obtained through a public capital improvement plan (CIP). A CIP is a financial schedule for short- and long-range projects which is updated regularly. Information listed in the CIP often evolves based on funding availability and the project details, including timeline and value, are subject to change. The content management team will continue to pursue additional details as they become available.