HomeMy WebLinkAboutAgenda Report - October 7, 2020 C-03AGENDA ITEM c-5
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AGENDA TITLE:Adopt Resolution Authorizing City Manager to Execute Professional Services
Agreement with DC Frost Associates, lnc., of Walnut Creek, for Purchase of
Ultra Violet 3000 Plus System Control Center Modifications, lntegration of Ultra
Violet Programmable Logic Control, and Supervisory Control and Data
Acquisition lmplementation for White Slough Water Pollution Control Facility
($96,572)
MEETING DATE:
PREPARED BY:
October 7,2020
Public Works Director
RECOMMENDED ACTION: Adopt resolution authorizing City Manager to execute
Professional Services Agreement with DC Frost Associates, lnc.,
of Walnut Creek, for purchase of ultra violet 3000 plus system
control center modifications, integration of ultra violet programmable logic control, and supervisory
control and data acquisition implementation for \Mite Slough Water Pollution Control Facility, in the
amount of $96,572.
BACKGROUND INFORMATION: The function of the ultra violet (UV) system is to disinfect the
City's tertiary treated wastewater at White Slough Water
Pollution Control Facility. The City of Lodi was one of the first
City's to utilize UV disinfection when it switched from chlorine gas to UV disinfection in January 2005.
Though effective, the current UV system (supplied by Trojan Technologies) is first generation UV
technology and requires regular maintenance and oversight to keep it properly operating. DC Frost
Associates, lnc. is the local representative for Trojan Technologies, the sole source for the UV
equipment.
UV technology has evolved since the original installation in 2005. ln 2020, City staff hired Carollo
Engineers, lnc. to evaluate replacing the existing UV system and to explore options that might
improve system operation over the next five years (at relatively minimal cost), until its planned 2025
replacement date. The evaluation recommended the proposed, intermediate improvements
consisting of hardware and software upgrades that will improve system performance and reliability for
at least the next five years.
Staff recommends authorizing City Manager to execute Professional Services Agreement with DC
Frost Associates, lnc., of Walnut Creek, for purchase of ultra violet 3000 plus system control center
modifications, integration of ultra violet programmable logic control, and supervisory control and data
acquisition implementation for White Slough Water Pollution Control Facility, in the amount of
$96,572.
FISCAL IMPACT The interim improvements are expected to improve reliability and
performance while reducing the City's exposure to treatment violations
APPROVED:
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R:\GROUP\ADMIN\Counc¡1U020\1 007202O\DC Frost\DC Frost CC.doc
ba Manager
912212020
Adopt ResolutionAuthorizing City Manager to Exocut€ Professional Services Agreement w¡lh DC Frost Associates, lnc,, of Walnut Creek, for purchase of Ultra
Violet 3000 Plus System Conlrol Center Modifications, lntegralion of Ultra Violet Programmable Logic Controf, and Superuisory Control ând Data Acquisilion
lmplementâtion for White Slough Water Pollution Control Facil¡ty ($96,572)
October 7, 2020
Page 2
imposed by the State Water Resource Control Board. This work does
not impact the General Fund.
FUNDING AVAILABLE:White Slough Water Pollution Control Facility Plant
Operations (53053003) - $96,572
Andrew Keys
Andrew Keys
Deputy City Manager/lnternal Services Director
rles E. Swimley, Jr
Public Works Director
Prepared by Kenneth Capitanich, Wastêwaler Plant Superintendent
CES/KC/tw
Altachment
R:\GROUP\ADMIN\Counciluo20\'1 0072020\DC Frost\Dc Frost CC.doc 9122t2020