Renovation of a water / sewer project in Sunnyvale, California. Design plans call for the renovation of a water / sewer project.

The Digester No.3 Improvement project will repair the failed interior and exterior annular tank lid seal. This seal prevents methane gas which is collected at the top of the tank from leaking out to atmosphere. In order to increase the life of the epoxy seal the tank lid skirt which extends into the tank will be lengthened to prevent exposure to the methane gas. In addition, a new larger side hatch will be installed similar to the Digester 1 and 2. The removal of the tank lid will facilitate the hatch installation. The larger hatch will facilitate safer entries into the tank by plant staff and contractors This project is included in the City of Sunnyvale's FY 2024-2043 Capital Improvement Program (CIP). Per the owner, as of October 21, 2024, a design team has been selected. The owner states that they are deferring this project until there is additional budget available. A timeline for bidding and construction has not been determined. *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.