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1.2.4 Forecast the 1995 and 2010 distribution of the population, the industrial <br /> growth, and the commercial developments. <br /> 1.2.5 Determine the average daily water use for the user categories based u on <br /> P <br />, metered water sales records and e ected water use trends. Contact the 1 <br /> XP arge water <br /> users to discuss their e ected 1 n <br /> xp o g term water needs. <br /> 1.2.6 Review the water production records to determine the average day, maximum <br />, day and maximum hour demands for the City of Decatur. <br /> 1.2.7 Estimate the 1995 and 2010 average water use throughout the water <br /> distribution system and estimate the maximum day and maximum hour demand ratios <br /> for the design years. <br /> 1.2.8 Develop information on the present water distribution system-pipe sizes, pipe <br /> lengths, system elevations, pump curves and storage facilities - will be input into a <br /> computer model for analysis. The modeling will be done on a skeletonized model <br /> of the systems transmission mains and branches that are 12" diameter and above. <br /> 1.2.9 Calibrate the computer model of the distribution system using existing water <br /> flow data and hydrant flow test data throughout the distribution system. <br /> 1.2.10 Use a calibrated computer model to analyze the distribution system for the <br /> 1995 and 2010 design year conditions under average day, maximum day and <br /> maximum hour demand conditions. Both steady state and extended period <br /> simulation will be run with the model to evaluate the distribution system problems. <br /> 1.2.11 Develop possible solutions to system problems identified by the computer <br /> analysis will be discussed with City staff. Recommended cost effective system <br /> improvement will be tested with the computer model. <br /> 1.2.12 Train the City staff in a three day workshop on the computer model used <br /> during the study. The modeling software and the calibrated model with present, 1995 <br /> and 2010 design conditions will be provided to the City. <br /> 1.2.13 Prepare a draft Water Master Plan report summarizing the engineering study <br /> and presenting final recommendations for system improvement. The report will <br /> contain a proposed schedule for system improvements and estimated costs. The draft <br /> report will be presented to and discussed with City staff. City staff comments will be <br /> incorporated into a final report for submittal to the City. A summary presentation <br /> of the Water Master Plan will be made to the City Council. <br /> 2 I� <br />