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DRAFT Dec14-17 <br />for review only <br />Demand Projections <br />Table 9-4 summarizes the projected population served by the City's <br />water supply system through the year 2040, including the projected <br />total per capita demand, the average day demand, and the maximum <br />day demand each year. It should be noted that the average and <br />maximum projected water demand is the projected water pumped and <br />therefore includes unaccounted water. <br />Projections made are per the 2040 Comprehensive Plan Update and <br />the following assumptions: <br />• Population projections were based on the City's 2030 <br />Comprehensive Plan, and are greater than the Metropolitan <br />Council's 2040 projections. <br />• Average day demands were calculated by multiplying the <br />projected population served by the average total per capita <br />water demand from 2012-2016. A total demand of 93 <br />GPCD was assumed for 2017 through 2040, which includes <br />approximately 2.7% unaccounted water. <br />• The average peaking factor for average day demand to <br />maximum day demand for the past five years is 3.43. This <br />peaking factor was assumed for the year 2017 and then <br />decreased linearly to reach the goal of 2.6 by the year 2030. A <br />peaking factor of 2.6 was applied from 2030 to 2040. <br />ITUW 2040 COMPREHENSIVE PLAN UPDATE <br />Table 9-4 Water Demand Proiections <br />2017 <br />15,729 <br />12,493 <br />93 <br />1.16 <br />3.43 <br />3.99 <br />2018 <br />16,853 <br />13,542 <br />93 <br />1.26 <br />3.37 <br />4.24 <br />2019 <br />17,976 <br />14,591 <br />93 <br />1.36 <br />3.30 <br />4.48 <br />2020 <br />19,100 <br />15,640 <br />93 <br />1.45 <br />3.24 <br />4.71 <br />2021 <br />20,090 <br />16,666 <br />93 <br />1.55 <br />3.17 <br />4.92 <br />2022 <br />21,080 <br />17,692 <br />93 <br />1.65 <br />3.11 <br />5.12 <br />2023 <br />22,070 <br />18,718 <br />93 <br />1.74 <br />3.05 <br />5.30 <br />2024 <br />23,060 <br />19,744 <br />93 <br />1.84 <br />2.98 <br />5.48 <br />2025 <br />24,050 <br />20,770 <br />93 <br />1.93 <br />2.92 <br />5.64 <br />2030 <br />29,000 <br />25,900 <br />93 <br />2.41 <br />2.60 <br />6.26 <br />2040 <br />40,000 <br />37,000 <br />93 <br />3.44 <br />2.60 <br />8.95 <br />GPCD - Gallons per Capita per day MGD - Million Gallons per Day <br />DRAFT Dec14-17 <br />for review only <br />COMPREHENSIVE WATER SUPPLY 212 <br />AND DISTRIBUITION PLAN <br />