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<br />Willow Heights Irrigation Company. Inc, <br />May 19-20. 2003 <br /> <br />Agenda Item 18d <br /> <br />pump and piping located at the lot are the responsibility of the homeowner. Several lots at lower <br />elevations are able to receive flow by pressure. There are no meters on the system, and users <br />are limited to the flow from a %" tap. Current policy allOWS users to water every 3rd day. <br /> <br />Within the subdivision, the terrain drops 65 feet vertically from north to south. The system was <br />originally installed in the same trench as the sanitary sewer system, directly above the sewer and <br />on the same grade. Much of the irrigation piping is very deep, 4 feet at the shallowest and 15-17 <br />feet at the deepest. Also, the piping used was a lightWeight plastic pipe, and improper backfilling <br />resulted in crushed pipes in some areas, and significaj1t plugging problems. Over the past 27 years <br />of usage, hard calcium and limestone deposits inside the pipes have reduced the internal size of <br />some of the pipe to 3 inches and less in diameter, with overall flow capacity reduced to less than <br />1/3. The system is completely plugged in tWo places, ,and at this time, with the blockages, the <br />system typically can only supply water to 12 to 14 users at a time. <br /> <br />Feasibllltv Studv <br /> <br />The WHIC, through its President, Marley Duclo and engineer Leroy Black, P.E., Ute Engineering in <br />Delta,have completed the feasibility study in accordahce with CWCB guidelines. The study <br />includes an assessment of alternatives available for rehabilitation of the system. <br /> <br />..... <br /> <br />~ <br /> <br />. <br /> <br />Willow Heiahts Irriaation ComDanv. Inc. <br /> <br />The WHIC is a non-profit corporation registered in th~ State of Colorado, in good standing. The <br />Company was incorporated in 1994. There are 98 shareholders holding 104 shares of stock. The . <br />WHIC exists in perpetuity and sets annual assessments. that are assigned to the shareholder <br />according to the number of shares they own. It also holds the power to withhold delivery of water to <br />shareholders who fail to pay assessments and to disConnect them from the system until <br />assessments are paid. The Board of Directors has the authority to incur indebtedness for major <br />work, alteration, or repair in excess of $5000, provid~d it is voted on the shareholders at a special <br />meeting. <br /> <br />Water Riahts <br /> <br />The primary source of water for WHIC is a direct flow water right out of the Duke Ditch. The Duke <br />Ditch diverts water from Leroux Creek and has an absolute water right for 5.0 cfs with an <br />appropriation date of 1892. Duke Ditch has a total Of 80 shares and average annual diversions of <br />1372 acre-feet. WHIC owns 15 shares with averag~ annual diversions of 257 acre-feet. WHIC <br />also obtains a minor amount of their water (< 5%) frdm several filings on upstream waste irrigation <br />water rights. <br /> <br />Prolect DescrlDtion <br /> <br />Because of the widespread prOblems and the depth ;of the lines, WHIC has elected to install a new <br />system above the old system, utilizing modern heavier pipe installed at a more reasonable depth. <br />The project will provide a means for the WHIC to coi!1tinue providing irrigation water to shareholders <br />while minimizing the occurrence of future failures. l <br /> <br />Four alternatives were considered in the feasibility s~udy: <br /> <br />1. The no-action alternative. <br />2. Rebuild the existing system over period of years as money permits. <br />3. Construct a new system over period of years. . <br />4. Construct a new system all at one time. ($115,000) <br />, <br />Page 20f 6 <br /> <br />. <br />