DATE: December 17, 2024
TO: Mayor and City Council
FROM: Director of Public Works
SUBJECT
Title
Adopt a Resolution Authorizing the City Manager to: Award a Construction Contract to Redwood Painting Co., Inc., for the Water Resource Recovery Facility (WRRF) North Vacuator Rehabilitation Project in a Not-to-Exceed Amount of $358,481; Enter into a Professional Services Agreement with Coating Specialists and Inspection Services, Inc., in a Not-to-Exceed Amount of $44,080; and Appropriate Funds in the Amount of $402,561
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RECOMMENDATION
Recommendation
That Council adopts the attached resolution (Attachment II) authorizing the City Manager to award a construction contract to Redwood Painting Co., Inc., (Redwood) for the Water Resource Recovery Facility (WRRF) North Vacuator Rehabilitation Project in an amount not-to-exceed $358,481; enter into a professional services agreement with Coating Specialists and Inspection Services Inc., in an amount not-to-exceed $44,080; and appropriation of funds in the amount of $402,561 from the Sewer System Replacement Fund (Fund 611).
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SUMMARY
The North Vacuator at the WRRF has been out of service for close to a year and is in need of repair. 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. In January 2024, the North Vacuator was shut down after a failure of the internal rotating sludge/scum collector occurred. Subsequent inspections by WRRF staff revealed severe corrosion of the internal rotating mechanism with subsequent failure of internal parts, as well as some degradation of the interior dome concrete surfaces due to coatings failure and exposure to hydrogen sulfide.
Coating Specialists and Inspection Services, Inc., (CSI) was engaged to perform a condition assessment of the North Vacuator. CSI conducted a maintenance inspection on Apri...
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