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2006_0925_Packet
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2006_0925_Packet
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factor considered is the ability to expand this system to other joint powers cities for potential <br />software sharing opportunities and emergency management benefits. Currently, the cities of <br />Moundsview and Arden Hills are considering implementing identical SCADA systems in the <br />future to capitalize on these benefits as well. <br />Theoretically, if all three cities implemented a networked SCADA system, operators could <br />control, monitor, and operate each others utility pumping stations from any of the three cities if a <br />natural disaster rendered the master computer in any one city inoperable. <br />Staff received quotes from seven vendors for various components of this replacement. These <br />seven quotes make up four possible replacement options. We recommend purchasing Allen- <br />Bradley Hardware components, Wondware Software components, and software and <br />communicationsengineering from Telemetry and Process Controls, Inc. City IT staff and Public <br />Works staff will manage this project. <br />The four replacementplan options range from $196,255 for total build out to $335,725 for total <br />build out of the highest cost options. <br />Staff is recommending the lowest cost option for implementation. This provides the city with <br />high quality non-proprietaryhardware and software. It provides for the expansion to monitor <br />future city or partner city installations and the ability to provide communications support <br />utilizing present staf£ It also allows migration to fiber optic networks as they become available <br />in additional areas of the city. <br />The initial phase will include conversion of the booster station and three sanitary sewer lift <br />stations, as well as the integration of control software and hardware server. This would be <br />completed by the end of 2006, with the remaining sites to be added in 2007. The lowest cost <br />option is to purchase hardware from General Repair Service for Phase I at a cost of $47,300 and <br />software, engineering and integration from Telemetry and Process Controls, Inc., for $49,855. <br />The city will realize immediate savings of approximately $7,000 per year for eliminating use of <br />Qwest data lines for the Phase I sites. <br />Financial Implications: This replacement has been planned for several years in the capital <br />improvement plan. We have budgeted $105,000 for a portion of this replacement. The <br />remainder is included in the 2007 budget request. This system is funded through the Water <br />Utility, the Sanitary Sewer Utility, and the Storm Sewer Utility budgets. The implementation <br />plan and component purchases quoted are well within the planned replacement costs originally <br />estimated at $250,000 to $300,000. <br />Staff Recommendation: Staff recommends authorization to implement the replacement of the <br />utility SCADA system. The booster station and three sanitary sewer lift stations will be <br />converted to the new system in 2006. Nineteen additional stations will be converted in 2007 to <br />complete the change over. <br />
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