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SFPUC increases contingency by $5 million for Westside recycled water treatment facility after VFD corrosion and delays
Summary
The commission approved a $5 million increase to the cost contingency for the Westside Recycled Water Treatment Facility at Oceanside Plant, citing failed variable frequency drives caused by ventilation design and multiple construction delays, including COVID‑era and supply chain impacts.
The San Francisco Public Utilities Commission on Thursday approved a $5 million increase to the contract cost contingency for the Westside Recycled Water Treatment Facility at the Oceanside Plant (contract WD‑2776). Project staff said the funding increase will cover extended contractor overhead related to negotiated delays and equipment and mechanical/electrical changes needed after equipment failures were discovered during commissioning.
What happened: project staff described a major failure of reverse osmosis system variable frequency drives (VFDs) discovered during pre‑commissioning in 2023. SFPUC staff and an outside consultant concluded corrosion on…
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