DATE: June 24, 2025
TO: Mayor and City Council
FROM: Director of Public Works
SUBJECT
Title
Adopt a Resolution Authorizing the City Manager to Execute Amendment No. 1 to the Agreement with Redwood Painting Co., Inc., Increasing the Agreement Amount by $215,239, for the Final Project Cost of the Water Resource Recovery Facility (WRRF) North Vacuator Rehabilitation Project, Project No. 07818, and Appropriating Funds in the Amount of $230,239 from Sewer System Replacement Fund (Fund 611)
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RECOMMENDATION
Recommendation
That the City Council adopts the attached resolution (Attachment II) authorizing the City Manager to execute Amendment No. 1 to the Agreement with Redwood Painting Co., Inc., (Redwood) for the Water Resource Recovery Facility (WRRF) North Vacuator Rehabilitation Project in an amount not-to-exceed $215,239, and authorizing the City Manager to transfer and appropriate additional funds in the amount of $15,000 from the Sewer System Replacement Fund (Fund 611) for the final project cost, for a total appropriation of $230,239.
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SUMMARY
Additional funding is needed to complete the North Vacuator Rehabilitation Project. This effort will restore a key component of the treatment facility, improving overall plant performance and reliability. It will also reduce maintenance demands on existing sludge pumping systems until the new Grit Facility, part of the Phase II Project, becomes operational.
The North Vacuator structure has been out of service since January 2024 and needs repair. When in use, the Vacuator removes grit and floating debris (grease/scum) from raw wastewater prior to primary treatment. The approximately 50-foot-diameter, 20-foot-tall concrete structure was built in 1958 and includes mechanical components and a self-supported concrete dome roof. To return the structure to service, the rehabilitation project included the following project elements:
- removal of existing coatings on inte...
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