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<br /> <br /> <br />Form Revised May 2007 <br /> <br />.. Gravel Pits <br />.. Pueblo Reservoir "If and When" Storage <br /> <br />Deliverable. The analysis will include the identification of other viable reservoirs, summarization of <br />existing reservoir capacities and water rights, and a cost estimate for proposed modifications. <br /> <br />Task C. <br /> <br />Technical Assistance for Ditch Companies <br /> <br />Essential to the success of the Lower Arkansas Valley Super Ditch Project is that there cannot be any <br />injury to other water users, including those ditch company shareholders who choose not to participate. For <br />example, the maintenance of proper flows in the ditches will be necessary to assure that the shareholders' <br />irrigation allotments are not diminished. To answer this question, the ditch companies will need to examine their <br />existing infrastructure, including the following: <br /> <br />. Existing ditch geometry (e.g., length, width, depth, channel shape, slope, etc.) and physical condition <br />(e.g., lined or unlined) <br />. Carrying capacities of the ditches, based on the previous item <br />. Number, location, and physical characteristics of laterals <br />. Location and condition of check structures <br />. Number and loeation of diversion structures for on-fann deliveries <br />. Tailwater returns <br />. Cropping patterns <br /> <br />This information will help to determine restrictions on water transfers that may be necessary to protect <br />the interests of various shareholders, such as those drawing irrigation water from the tail ends of remote laterals. <br />Some ditch companies have existing engineers capable of undertaking such an analysis, while others may need <br />assistance. Part of the grant will go to supp0l1 the ditch companies' investigations of internal operating issues <br />related to shareholder pm1icipation in the Super Ditch Company. Providing resources to the ditch companies to <br />do this will help insure that shareholders have adequate information when deciding whether to authorize their <br />ditches to participate in the Super Ditch Company. The ditch companies will use their own engineers, HDR, or <br />other qualified water engineers to complete this task. <br /> <br />Deliverables. Engineering reports on the modification and/or operation of ditches necessary to <br />pm1icipate in the Super Ditch Company while protecting the interests of non-pm1icipants. <br /> <br />Task D, <br /> <br />Engineering analysis of potential in.jury in change of water rights <br /> <br />Under Colorado's prior appropriation water rights to water <br />rights are only permitted (decreed) if there is a guarantee of "no injury" to existing water rights holders. That is, <br />the owner of a water right for which a change is sought must ensure that other water rights holders will not <br />experience a diminishment in the volume and flow rate of water historically available to meet their needs. Thus, <br />there cannot be any injury to other water users resulting from fallowing-leasing program. This <br />requirement can be met through restrictions imposed on the decreed change or through mitigation measures such <br />as releases from storage to meet flow requirements at the appropriate time and place. <br /> <br />11 <br />