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Of HKOlH
ON THE WATER
MEMORANDUM
DATE: December 2, 2009
TO: Honorable Mayor and Members of the Common Council
FROM: Mark A. Rohloff, City Manager 0-rK. go4w - -. �
RE: . Water Filtration Plant Ozone Generator Maintenance Project
BACKGROUND
The water filtration plant has three ozone generators as part of the water treatment process. These were
put in service in December of 1999 during the start up of the filtration plant. Ozone is generated by
exposing oxygen to an electric charge and is used as an oxidant to treat for taste and odor control and
also enhances the removal of organic carbon. Each ozone generator has 1,972 individual interconnected
dielectric glass rods that lose efficiency overtime. These components have reached their expected useful
life and need to be replaced. PCI Wedeco the original manufacturer of the equipment has been bought
out and is now a part of ITT Water and Wastewater U.S.A. which is the only source of parts and service
for this equipment.
ANALYSIS
Due to the specialized nature of this equipment, parts and service are only available through ITT Water
and Wastewater U.S.A.. Each of the rods has to be individually replaced so this is a very labor intensive
process. ITT Water and Wastewater U.S.A. has provided a quote of $269,850.00 for parts and service to
completely rebuild all three ozone generators to as new condition.
FISCAL IMPACT
Funding for this project is included in the Major Equipment Replacement Section of the 2009 Capital
Improvements Program (Water Utility Funds) with $300,000.00 budgeted for this project.
RECOMMENDATIONS
Section 12- 10- (D)(1) of the Municipal Code which allows for the waiver of bids when services, materials
or equipment are available from one source of supply or when standardization or compatibility are the
overriding concerns, may be approved by the City Manger without the use of formal sealed quotes. In
accordance with 23 -10(E) of the code, I am hereby submitting this report regarding this purchase.
Please advise me if you have any questions concerning this purchase
MAR /smb