CITY COUNCIL AGENDA ITEM
ACTION REQUESTED:
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Approve the award of Bid 22-024, West-Southwest Elevated Tank Painting Project, to ERA-Valdivia Contractors, Inc. for an amount not to exceed $845,050, plus a 3% contingency
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DEPARTMENT: Water Utilities
SUBMITTED BY: Darrell Blenniss, Director
BOARD/COMMISSION REVIEW:
N/A
BACKGROUND:
In 1995, the 0.75 MG West-Southwest Elevated Tank (WSWET) was built as part of the West-Southwest Waterworks (WSWWW) site that includes an 8.0 MG ground level water storage tank, high lift pumps, and an emergency backup electric power generator, as well as disinfection equipment, instrumentation, supervisory control and data acquisition (SCADA), system controls, and communications equipment. The existing coating of WSWET is original to its construction in 1995 and has exceeded its life expectancy.
In November 2018, Dixon Engineering Inc. (Dixon), an independent third-party engineering firm, conducted an inspection of WSWET that revealed deterioration of the interior and exterior surface coatings, with numerous spot failures of the coating systems exposing the structure to corrosion and rusting. Safety and structural repairs were also identified and recommended for completion while the tank is out of service for painting. In September 2021, an inspection of WSWET by Sherwin-Williams Company provided paint and application recommendations that complement Dixon's recommendations.
In March 2022, the Water Utilities issued Bid 22-024, West-Southwest Elevated Tank (WSWET) Painting Project, which incorporates the recommendations from Dixon and Sherwin-Williams. Work on this project includes:
1. Spot cleaning exterior surfaces with power tools, spot painting, and overcoating.
2. Dry interior surfaces need to be spot cleaned with power tools and spot painted.
3. Wet interior, water holding, surfaces need to be abrasive blast cleaned to bare metal and coated.
4. Base area piping needs to be cleaned with power tools and coated...
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