AGENDA TITLE:
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Adopt a Resolution Authorizing City Manager to Execute Amendment No. 1 with Trojan Technologies Group ULC, a Sole Source Vendor, of London, Ontario for Ultraviolet Disinfection Service and Parts at White Slough Water Pollution Control Facility ($846,000) (PW)
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MEETING DATE:
November 6, 2024
PREPARED BY:
Public Works Director
recommendation
RECOMMENDED ACTION:
Adopt a Resolution authorizing the City Manager to execute Amendment No.1 with Trojan Technologies Group, ULC, of London, Ontario for ultraviolet disinfection service and parts at White Slough Water Pollution Control Facility, in the amount of $846,000.
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BACKGROUND INFORMATION:
The ultra violet (UV) system disinfects the City's tertiary treated wastewater at White Slough Water Pollution Control Facility (WSWPCF) and is regulated by the California Regional Water Quality Control Board. Nearly 20 years ago, the City of Lodi switched from chlorine gas to UV disinfection for safety and water quality reasons.
The UV system consists of two channels with five banks of UV lamps in each channel. Each bank contains 176 UV lamps, for a total of 1,760 lamps in the system. Regulatory requirements allow each lamp to remain in service for a maximum of 8,000 hours. There is one set of wipers for each lamp and one ballast for every two lamps. The lamps, wipers, ballasts, and additional components need to be checked daily for proper operation. Staff must regularly replace ballasts and lamps, due to either failure or service life, and wipers to maintain water quality compliance.
On July 20, 2022, Council authorized the City Manager to execute a 3-year Professional Services Agreement (PSA) in the amount of $1,050,000 with Trojan Technologies for providing UV disinfection services and parts at the WSWPCF which included two, optional 1 year extensions. The amount requested ($1,050,000) funded the original term of 3 years. The staff report noted that if additional extensions were ...
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