Laserfiche WebLink
<br />, <br /> <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 ~n tap. Current policy allows users to water every 3rt! 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 significant 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 />Feasibility StUdY <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 accordance with CWCB guidelines. The study <br />includes an assessment of alternatives available for rehabilitation of the system. <br /> <br />Willow Heiqhts Irrigalion Company, Inc. <br /> <br />The WHIC is a non-profit corporation registered in the 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, provided 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 average annual diversions of 257 acre-feet. WHIC <br />also obtains a minor amount of their water (< 5%) from several filings on upstream waste irrigation <br />water rights. <br /> <br />Profect Descrlotion <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 continue providing irrigation water to shareholders <br />while minimizing the occurrence of future failures. <br /> <br />Four alternatives were considered in the feasibility study: <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 2 of 6 <br />