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<br />The water line extension from the Water District system will include four miles of six inch PVC <br />line up to the corner of County Road 29 and County Road 98. The water line up to County Road <br />98 and the NWCWD Nunn Booster Station will be owned and maintained by the Water District. <br />A meter vault will be installed at the southwest corner of the Town limits to measure the amount <br />of water pumped from the District. The six inch line will be extended north on County Road 29 <br />to Fourth Street, continue east along Fourth Street to Roosevelt Avenue and connect to an <br />existing six inch PVC line (see Figure No.3). <br /> <br />Well Nos. I and 2 will be used for non-pot~ble uses. A two inch line will be installed from Well <br />No. I or 2 to the Town Park for irrigation of the park. This will help to lower the demand on the <br />potable water supply. <br /> <br />IV. DEMAND <br /> <br />As discussed in the "Water System Evaluation" report there are limited years of meter records. <br />The demand was determined by assuming 165 gallons per capita per day (see Table No. I). With <br />the current population of 344 residents the estimated annual demand is 20.7 million gallons (63.5 <br />acre-feet). The peak day demand was assumed as 2.5 times the average daily use. This equates <br />to a peak day demand of 141,900 gallons. The Town Board has decided they would like to plan <br />the new water system for a population increase up to 600 residents. <br /> <br />Table No. I - Estimated Water Demand for Town ofNunn <br /> Current Future <br /> Item 1995 Planning <br />Population 344 600 <br />Average Daily Demand (gal)* 56,760 99,000 <br />Annual Demand (gal) 20,717,400 36,135,000 <br />Average Flow Rate (gpm) 39 69 <br />Peak Daily Demand (gal)** 141,900 247,500 <br /> <br />Peak Daily Flow Rate (gpm) 99 172 <br />Note: * Based on Average Daily Per Capita Use = 165 gpcd <br />** Based on Peak Daily Use:Avg. Daily Use = 2.5:1 <br /> <br />With the installation of a six inch line from the District system to Nunn there will be suffIcient <br />capacity for delivery of water for 600 residents. The friction head loss for fIve miles of six inch <br />PVC at 172 gpm is approximately 78 feet. The maximum lift from the District Tank to the Nunn <br />tank is 85 feet. A 10 horsepower booster pump will provide the 163 feet of head for the future <br />demand ofNunn. The Water District has indicated they may choose to install a larger pipeline in <br />place of the six inch line at their cost. This will allow the Water District to provide future <br />services outside the Nunn Town limits. <br /> <br />3 <br />