REQUEST FOR CITY COUNCIL AND
CORONA UTILITY AUTHORITY ACTION
DATE: 10/18/2023
TO: Honorable Mayor and City Council Members
Honorable President and Board Members
FROM: Utilities Department
SUBJECT:
Title
PURCHASE ORDER WITH TORAY MEMBRANE USA FOR REVERSE OSMOSIS MEMBRANES
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EXECUTIVE SUMMARY:
This staff report asks the City Council to approve a purchase order with Toray Membrane USA for four years for the purchase of reverse osmosis membranes for the Temescal Desalter treatment facility.
RECOMMENDED ACTION:
Recommended action
That the City Council:
a. Authorize the City Manager, or his designee, to issue a purchase order with Toray Membrane USA in the amount of $210,000 per year, for a term of four years, including any non-substantive extensions or change orders up to the amount authorized by Corona Municipal Code Section 3.08.080(I) which is equivalent to 10% or $21,000.
b. Make a determination under Corona Municipal Code Section 3.08.140(B) that competitive bidding is not required for this purchase based upon the reasons provided in this agenda report.
That the Corona Utility Authority review, ratify, and to the extent necessary, direct the City Council to take the above actions.
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BACKGROUND & HISTORY:
The Utilities Department operates the Temescal Desalter to treat 12.13 million gallons per day of brackish groundwater. The Temescal Desalter removes Total Dissolved Solids (TDS), nitrates, and Polyfluoroalkyl Substances (PFAS). The Temescal Desalter operations process includes the following:
* Pre-chemical injection for optimal performance
* Cartridge filtration to remove sand and sediment
* First stage reverse osmosis membrane treatment
* Second-stage reverse osmosis membrane treatment
* Decarbonation to increase pH
* Post-chemical injection for pH adjustment and disinfection
* Blending and pumping into the distribution system
The heart of the process is the membrane treatment. Staff conducts routine preventive maintenance...
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