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File #: 21-0509    Version: 1 Name:
Type: Bid & Purchase Status: Passed
File created: 5/19/2021 In control: City Council
On agenda: 6/2/2021 Final action: 6/2/2021
Title: Additional purchase of sodium hypochlorite for water and water reclamation treatment.
Attachments: 1. Staff Report
REQUEST FOR CITY COUNCIL AND
CORONA UTILITY AUTHORITY ACTION



DATE: 06/02/2021

TO: Honorable Mayor and City Council Members
Honorable President and Board Members

FROM: Department of Water and Power

SUBJECT:
Title
Additional purchase of sodium hypochlorite for water and water reclamation treatment.

End
EXECUTIVE SUMMARY:
The Department of Water and Power uses sodium hypochlorite in water and water reclamation treatment processes. The existing purchase order for sodium hypochlorite will not be sufficient for treatment through June 30, 2021, because of unexpected increased usage. Staff requests a $324,808 change order through June 30, 2021, with Olin Chlor Alkali Products.


RECOMMENDED ACTION:
Recommended action
That the City Council:

a. City Council authorize the Purchasing Manager to issue a change order for $324,808 to the existing purchase order with Olin Chlor Alkali Products for sodium hypochlorite for water and water reclamation treatment for a total purchase order amount of $1,584,808.

b. 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 Department of Water and Power (DWP) operates four water treatment plants and three water reclamation treatment facilities. Sodium hypochlorite 12.5% concentration is used in both water and water reclamation processes to achieve treatment required by the State Water Resources Control Board (SWRCB), Division of Drinking Water, and the Santa Ana Regional Water Quality Control Board (SARWQCB)/United States Environmental Protection Agency (EPA).

Water Reclamation Treatment

Sodium Hypochlorite is required at all times to meet all of the facilities' compliance points throughout DWP's water reclamation treatment process. Sodium hypochlorite is used to meet contact time requirements, achieve system residual, and disinfect pathogens. To meet SWRCB tertiary standards, DWP's treatment plants must meet a cont...

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