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10/9/2018 Item Coversheet <br /> 5.Evaluation of Potential Sources-Mahomet Aquifer Alternative: For the City's DeWitt and Cisco wellfields,examine the <br /> costs and benefits of operating these wells during drought and near-drought conditions and formulate operational schemes <br /> that optimize use of the wells. <br /> 6. Systems Model for Alternative Evaluations: Combine operation of additional supply alternatives with Lake Decatur operation <br /> under drought scenarios to assess not only how best to use one or more alternatives,but also to examine operating rules for <br /> Decatur. The model can also be turned over to Decatur for possible future scenarios. <br /> 7.Alternative Ranking and Selection: Comparing alternatives involves selecting and prioritizing a host of criteria including <br /> construction costs,operating costs,as well as non-cost benefits,impacts,and risks. Construction and operating costs will <br /> require conceptual designs of infrastructure,existing faciliry improvements,and transmission sizing and routing. Meetings <br /> with City staff are expected for criteria development and prioritization. <br /> 8.Internal Review and Final Presentation:Presentation of preliminary results(75%completion)to Decatur staff,internal <br /> review by Decatur and Intera,completion of final report,and presentation to the City Council. <br /> PRIOR COUNCIL ACTION: August 4,2008- Council approved the Decatur Water Resources Advisory Committee <br /> recommendation that the City obtain 10,000 acre feet of additional water supply for drought planning purposes. <br /> POTENTIAL OBJECTIONS: None foreseen. <br /> STAFF REFERENCE: Matt Newell,Public Works Director,424-2747. Keith Alexander,Water Production Manager,424-2863. <br /> BUDGET/TIME IMPLICATIONS: <br /> This expenditure will be paid from the Public Works Water Lake Capital Budget at a fee not to exceed$277,324. The project will <br /> take approximately five months to complete. <br /> COPY: Jack Wittman,Intera,Inc. <br /> https://decatur.novusagenda.com/AgendaWeb/CoverSheet.aspx?ItemID=1717 2/2 <br />