Agenda - Council - 06/23/2009 - Laserfiche WebLink

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equipment, thereby creating consistent maintenance. responsibilities. The design includes upgrades to the current SCADA system because the existing system. is overloaded and is in need of improvements at this time. The hydropillar design will . provide space for City equipment storage in the base, facilities for telecommunication providers, and easier retrofits in the future should they be necessary. The purposes for water storage in a municipal distribution system are to provide the ability to equalize pumping rates and pressures during periods of variable rate of demand, fire protection, and emergency requirements. Adequate storage permits reduction in the size of pumps required to supply . a community because peak demands are diminished by the reserves provided by the storage, and the elevated storage provides the pressure for the system due to gravity. Emergency storage requirements should equal 20% of your maximum daily demand (currently 5.2 million gallons per day), therefore the City should have. approximately 1 million gallons of storage dedicated to emergency .provisions for incidents when there may be pump and/or power failures. Having water available in reserves aids in system distribution and fire fighting capabilities in times when the water supply is tieing impacted by unforeseen occurrences. . Another criterion for a municipal water system distribution is that there should. be adequate storage provided to account for the average daily demand. In 2008 the City's water usage was 1.9 million gallons, and currently we have 2 million gallons of above ground storage;. therefore. . we are reaching that critical storage threshold to match our daily demand. Without construction of additional storage facilities the City may be in a position very soon of having to forego development until.such a -time that the system can meet future demand. Funding: To date the City has. spent approximately $825,000 on this project, including geotechnical investigations; surveying, appraisals, consulting fees, and land acquisition. The engineer's opinion of probable construction'costs for the proposed water tower site is $4,250,906, meaning the total project cost for this endeavor would be about $5.1 million. All associated project costs Will be funded solely through the Water Utility Fund. It is understood that there is some concern with the balance in the water utility fund in light of the recent purchase of the Town Center. Today the balance on this account is approximately $11 million; with $2 million. reserved for the municipal center debt, a nd $2.325 million reserved for the Town Center purchase. We also I have a couple of improvement projects planned for this construction season totaling approximately $550,000, which would leave an available balance of about $6.1 million. It should be noted that staff has prepared an applications to receive stimulus. funds through the Drinking Water Revolving Fund, which could potentially offset some of the costs associated with a few of these planned projects. Over the last 3 years the water utility has consistently brought in over $1.4 million per year in water sales, and the cost of constructing this tower would be spread across 2 years; therefore during the time that this potential $4.2 million expenditure is occurring $2.8 million will be brought in to compensate for operating expenditures. Also, the City will have approximately 13 acres of surplus property as part of the acquisition to leverage for future income to the fund. —270—