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<br />cases before Water Court. Within the next few years, additional applications will be <br />submitted to change the use of water rights owned by the District. <br /> <br />Unaccounted Water Use <br /> <br />The average amount of unaccounted water use since January 1992 is shown in Figure <br />3.8. The graph shows that the percentage of unaccounted water use varies <br />dramatically over time. ELCO crews repair leaks as soon as they are located, but in <br />some cases, leaks can go undetected for several months. <br /> <br />Data plotted on the graph reflects a moving 12-month average instead of actual use in <br />anyone month. Since meter readings start on the 15t of the month and end on the 15th, <br />the metered water use of District customers will never match water produced from <br />SCFP in anyone month. Average water use over the prior 12 months is more <br />representative of the actual amount of unaccounted water use. <br /> <br />Figure 3.8 - Unaccounted Water Use in ELCO Water District (1992 - 2007) <br /> <br />;g 300ic> <br />~ <br />Q) <br />U) <br />:J 25Oic> <br />~ <br />Q) <br />... <br /><<S <br />3= 200ic> <br />"0 <br />Q) <br />... <br />s::: <br />::] 15Oic> <br />0 <br />(.) <br />(.) <br /><<S <br />s::: 1 OOic> <br />:J <br />..... <br />0 <br />Q) <br />C) 5Oic> <br /><<S <br />... <br />s::: <br />Q) <br />(.) <br />~ OOic> <br />Q) <br />a. N <br /> ~ <br /> "'r""" <br /> <br /> <br /> <br />Lt') <br />~ <br />"'r""" <br /> <br />co <br />~ <br />"'r""" <br /> <br />"'r""" <br />!:2 <br />"'r""" <br /> <br />"Il:::t <br />!:2 <br />"'r""" <br /> <br />to- <br />!:2 <br />"'r""" <br /> <br />Water pressure in the older parts of the District's distribution system can reach 130 p.s.i. <br />Areas with high water pressure are in or near the Poudre River corridor, which has a <br />relatively shallow water table and extremely porous soils. The combination of older, AC <br />pipe and high water pressure increases the possibility of leaks. The porous soils <br />surrounding much of the District's water lines makes it difficult to pinpoint the location of <br />leaks. <br /> <br />In recent years, locating and repairing leaks within its transmission and distribution <br />system has been a priority for the District. Leak detection has historically been <br /> <br />Clear Water Solutions, Inc. <br />East Larimer County Water District <br /> <br />2007 Water Conservation Plan <br /> <br />18 <br />