HomeMy WebLinkAboutAgenda Report - June 7, 2006 E-05AIGENDA ITEM Ear0%)
40 CITY OF LODI
COUNCIL COMMUNICATION
TM
AGENDA TITLE: Approve SpecWications and Authorize Advertisement for Bids for Necessary
Process Chemicals for White Slough Water Pollution Control Facility, Fiscal
Year 2006107
MEETING DATE: June 7, 2006
PREPARED BY: Public Works Director
RECOWRENDED ACTION: That the City Council approve specifications and authorize
advertisement for bids for necessary process chemicals for the
White Slough Water Pollution Control Facility (WSWPCF), fiscal
year 2006/07.
BACKGROUND INFORMATION: The process chemical bids are requested for sodium hydroxide and
liquid cationic coagulant. The sodium hydroxide, also known as
caustic soda, is needed to adjust the pH of the effluent discharged
from the WSWPCF. The liquid cationic coagulant is needed to
remove solids and reduce turbidity in the treated effluent during process upsets.
The pH measurement is an indication of the aciditylalkalinity of the water. Wastewater can become
acidic as the organics break down during the treatment process. When the pH falls below 6.5, it is
necessary to add an alkalid, such as caustic soda to raise the pH. Turbidity is a measure of how clear
the water is. When process upsets occur, the effluent may become cloudy, which is a violation of our
discharge permit. The specifications provide for renewal by staff for an additional year. The
specifications are on file in the Public Works Department at the Municipal Service Center.
FISCAL IMPACT: Because the annual usage can vary depending on the quantity and
strength of the wastewater treated, the approximate annual purchase may
be 20,000 gallons of sodium hydroxide and 40,000 pounds of coagulant.
The estimated annual cost for sodium hydroxide will be $53,000 and will be
$32,000 for the coagulant. The proposed operating budget has sufficient funds to cover these purchases.
FUNDING AVAILABLE: The money for these purchases will be coming from the WSWPCF
Operating Budget in the proposed 2006107 operating budget.
Project Estimate: $85,000
Budgeted: 2006107 fiscal year
Planned Bid Opening: June 28, 206
r Richard C. Prima, Jr.
Public Works Director
Prepared by Del Kerlin, Assistant Wastewater Treatment Superintendent
RCPIDKIdk
cc: D. Stephen Schwabauer, City Attorney Del Kerlin, Assistant Wastewater Treatment Superintendent
Joel Harris, Purchasing Agent
APPROVED:
Blair , City Manager
J:' COUN C IL\Os`WSW PCFProcessChemicalsO6. doc
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