AGENDA TITLE:
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Adopt a Resolution Authorizing Interim City Manager to Execute Additional Change Orders to the White Slough Water Pollution Control Facility Electrical Building Associated Improvements Project ($700,000) and Appropriate Funds ($1,300,000) and Authorizing Electric Utility to Obtain Bids and Purchase Power Cable from Lowest Responsive Bidder ($400,000) (PW/EU)
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MEETING DATE:
May 20, 2026
PREPARED BY:
Sean Nathan, Interim Public Works Director and Jeff Berkheimer, Electric Utility Director
recommendation
RECOMMENDED ACTION:
Adopt a resolution authorizing the Interim City Manager to execute additional change orders to the White Slough Water Pollution Control Facility Electrical Building Associated Improvements Project ($700,000) and Appropriate Funds ($1,300,000) and authorizing the Electric Utility to obtain bids and purchase power cable from the lowest responsive bidder in an amount not-to-exceed $400,000.
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BACKGROUND INFORMATION:
On April 19, 2023, the City Council awarded the White Slough Water Pollution Control Facility Electrical Building Project to C. Overra & Co. of Richmond, in the amount of $11,408,000. The project includes construction of a new electrical building and associated infrastructure to improve electrical reliability and support plant operations.
During construction, Public Works coordinated with Lodi Electric Utility (LEU) to redesign the electrical service to provide long-term reliable power to the new facility. This redesign includes the relocation of two (2) existing transformers and installation of eight (8) new secondary power cables and eight (8) new emergency power cables from the transformers to the new electrical switchgear, totaling approximately 1,100 linear feet. LEU has provided an estimate of $551,109 to complete this work. The requested appropriation is for $600,000 to provide contingency funds. Approximately $400,000 of power cable will need to be purchased by LEU.
In addition, several construction-related changes have been identified that are necessary to complete the project and ensure proper integration with existing facility systems. These changes are the result of unforeseen field conditions, existing facility constraints, and system integration requirements that were not fully identifiable during design.
The primary components of the additional work include:
• Installation of new service wiring from relocated transformers to the existing Administration Building switchgear to maintain continuity of operations. This change order is estimated to be $370,000.
• Modifications to Motor Control Center (MCC) wiring to accommodate existing equipment configurations and operational requirements. This change order is estimated to be $70,000.
• Revisions to control wiring and conduit installation due to space limitations within existing conduit systems. This change order is estimated to be $10,000.
• Emergency repair of a failed underground air supply line necessary to maintain plant operations. This work is being performed on a time and material basis with an estimated cost of $100,000.
• Additional contingency to address conditions encountered during final integration of the new electrical building with existing plant systems - $150,000.
These changes require additional change order authority and project funding to complete the project as intended.
Staff has reviewed project costs and determined that the requested funds are necessary to complete the project and maintain reliable plant operations. The identified changes are consistent with conditions encountered during construction of complex infrastructure projects involving integration with existing facilities. Failure to approve the requested appropriation will result in delays to project completion and may impact plant operations due to incomplete electrical and control system integration.
FISCAL IMPACT:
The requested action will increase the project budget by $1,300,000 to support additional construction costs, utility coordination, and contingency required to complete the project. LEU power cable will be purchased as an inventory item and issued/charged to the respective project budget.
FUNDING AVAILABLE:
Appropriate Funds in Wastewater Operations and Wastewater Capital for transfer in and out. Appropriate Wastewater Capital Fund Expense in the amount of $1,300,000:
Power cable will be purchased by LEU through its inventory account 500.13496.