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<br />I, <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />, <br />I <br />I <br />I <br /> <br />Final Summary <br />Report <br />on <br />Nunn, Colorado <br />Water System Improvement project <br /> <br />The Town of Nunn is located about 20 miles north of Greeley, <br /> <br />Colorado (Fig I) and 30 miles south of Cheyenne, Wyoming on u.S. <br /> <br />Highway 85. The current population of the town is 300 persons <br /> <br />with approximately 120 families represented. <br /> <br />Original Water System <br /> <br />The present water supply is derived from two groundwater <br /> <br />sources; one source is two shallow wells pumping from the South <br />Platte River tributary groundwater (approximately 80 gpm each), <br />and the second source is a deep well (-770') in the Laramie/Fox <br />,Hills formation (-12 gpm). The water is chlorinated and pumped <br /> <br /> <br />to a 50,000 gallon eievated storage tank for distribution (fig. <br /> <br /> <br />II). The distribution system consists mainly of cast iron pipe <br /> <br />constructed in the early 1920's with some more recent installa- <br /> <br />tion of PVC and galvanized pipe. The "mains" vary in size from <br /> <br />6" maximum to 2". Inspection of the cast iron pipe during the <br />more recent construction has shown that the pipe is generally in <br />excellent condition after many years of service. Only minor <br /> <br />leakage problems have been identified. The current distribution <br />system, whi~h has been mapped by the town, also consists of water <br />meters for all the users. <br /> <br />705 <br />nunn/rep <br />