AGENDA TITLE:
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Accept Improvements Under Contract for Solids Handling Facility Improvements at White Slough Water Pollution Control Facility Project and Adopt a Resolution Approving Change Order No. 3 and Ratifying City Manager Approval of Increased Expenses (PW)
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MEETING DATE:
November 5, 2025
PREPARED BY:
Public Works Director
recommendation
RECOMMENDED ACTION:
Accept improvements under contract for Solids Handling Facility Improvements at White Slough Water Pollution Control Facility Project and adopt a resolution approving Change Order No. 3 and ratifying the City Manager's approval of the increased expenses.
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BACKGROUND INFORMATION:
On April 15, 2020, Council authorized the City Manager to execute a Professional Services Agreement with Carollo Engineers, Inc. to provide assistance with the procurement and installation of a new sludge dewatering press and digester mixing system improvements at the White Slough Water Pollution Control Facility (WSWPCF).
In certain conditions, the performance of the existing sludge dewatering equipment at WSWPCF was not able to remove the amount of moisture needed to properly handle the material. Based on the recommendations from Carollo Engineers, Inc., the City decided to install a new screw press to improve the sludge dewatering process; and to install a new sludge mixing system in Digester No. 3 needed to improve the sludge stabilization process.
Specifications for this project were originally approved by Council on October 19, 2022. The project was advertised on November 5, 2022.
On January 18, 2023, Council awarded the contract to Garney Pacific Inc, of Tracy ($2,424,725).
Project work was suspended by mutual agreement from June 2, 2023 until June 3, 2024, due to equipment delivery lead times.
On October 2, 2024, City Council authorized the City Manager to execute change orders not to exceed $150,000.
The original contract was $2,424,725, with the final contract amount being...
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