DATE: September 3, 2025
TO: Honorable Mayor and City Councilmembers
FROM: Water Utilities Department
TITLE: AWARD OF CONSTRUCTION CONTRACT FOR THE MISSION BASIN GROUNDWATER PURIFICATION FACILITY SODIUM HYPOCHLORITE TANK AND PIPING REPLACEMENT AND SECONDARY CONTAINMENT RETROFIT PROJECT
RECOMMENDATION
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Staff recommends that the City Council award a contract to Vicon Enterprise, in the amount of $290,215, for the Mission Basin Groundwater Purification Facility Sodium Hypochlorite Tank and Piping Replacement and Secondary Containment Retrofit Project; authorize the City Engineer to execute change orders up to a total of 10 percent of the contract amount for any unforeseen conditions for a total contract amount not to exceed $319,237; and authorize the City Manager, or designee, to execute the agreement upon receipt of all supporting documents.
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BACKGROUND AND ANALYSIS
The Mission Basin Groundwater Purification Facility (MBGPF) treats brackish groundwater from the Mission Basin aquifer using reverse osmosis technology to produce approximately 11 percent of the City's water supply. The facility has been in operation since 1992 and currently has a treatment capacity of 2.2 million gallons per day.
The MBGPF is anticipated to undergo major improvements in the current fiscal year to upgrade and optimize its treatment processes. This Sodium Hypochlorite Tank and Piping Replacement and Secondary Containment Retrofit Project (Project) is being completed in advance of these broader plant upgrades to ensure that the chemical storage and distribution systems are safe, compliant, and reliable prior to construction of the other facility improvements.
The Project includes the removal and replacement of the existing sodium hypochlorite storage tank, associated piping, and valving systems. In addition, the Project will retrofit the existing secondary containment structure. These improvements are essential to maintaining the integrity of the chemical storage in ...
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