Item 13 - Award Purchase Order Contract for Electrical Equipment Upgrades at John Garthe Water Pump Station

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Electrical Equipment, Hardware, and Related Materials for Garthe Pump Station December 2, 2025 Page 2 5 4 4 6 frequently, and likelihood of complete failure increases. The existing motor control centers (MCCs), variable frequency drives (VFDs), switchgear, and control panels have reached the end of their operational life and are increasingly prone to failure, posing a significant risk to the station’s reliability. Without these upgrades, the City could potentially face service disruptions and reduced system resiliency during peak demand or emergency operating conditions. To address these critical needs, PWA is proceeding with a comprehensive electrical rehabilitation of the John Garthe Pump Station. The project scope includes demolition and removal of the existing, deteriorated electrical system, followed by the installation of new motor control centers (MCCs), variable frequency drives (VFDs), switchgear, and associated control panels. In addition, the work will also include trenching and installation of new underground conduits from the switchgear to the new Southern California Edison (SCE) transformer, as well as reconnection and integration of all existing wiring, control systems and instrumentation with the newly installed electrical equipment, to ensure full operational functionality and compliance with current standards. The project will conclude with testing, commissioning, and coordination with Southern California Edison (SCE) to verify proper operation and system performance prior to final acceptance. Installation of the new system requires electrical hardware and materials to complete the rehabilitation. This includes galvanized rigid steel conduit, PVC-coated rigid steel conduit, wire and cable, stainless steel junction boxes and troughs, conduit fittings and terminations, stainless steel hardware, operator safety devices, and other supporting installation components. Approval of this item will enable the City to obtain the specialized electrical hardware required to complete the rehabilitation of the John Garthe Pump Station. This project will enhance system reliability, reduce maintenance downtime, and extend the operational life of the facility. The electrical rehabilitation work will be performed by PWA in-house staff, who are experienced in managing and implementing electrical and control system improvements at City water facilities. Performing this work with PWA in-house staff is expected to accelerate the construction schedule by approximately six months and may result in cost savings between $500,000 to $700,000 by avoiding contractor labor and overhead expenses that would otherwise be incurred. Construction and equipment installation is scheduled to begin in December 2025, with completion anticipated by April 2026. During construction, there will be no interruption to the water services as a temporary power source will be installed to maintain continuous operation of the booster station while the electrical systems are being replaced and commissioned. This approach ensures uninterrupted water delivery to residents and businesses throughout the rehabilitation period while allowing staff to safely complete the upgrades. Ultimately, these improvements will modernize John Garthe Pump Station’s electrical backbone, enhance energy efficiency, and ensure long-term operational reliability for one of the City’s most vital water assets. This project represents a proactive approach to