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contribute to ditch flows. Flows in these sloughs are highest when ditch diversions are curtailed <br />for Compact purposes. Many of the meadow lands are partially subirrigated from these sloughs. <br />Return Flows <br />Meadow lands under the Ditch are primarily located on the upper three-quarters of the system. <br />Approximately one-third of the water is delivered to the south side of the Ditch, and two-thirds to <br />the north side. Return flows from irrigation of meadow lands accrue to the Rio Grande within a <br />few miles of where the water is applied. <br />There are two or three surface drainage points back to the Rio Grande. These points are used <br />periodically to drain the ditch if needed. In addition, many individual farms have drainageways <br />to return excess water to the Rio Grande. There is a "spill" point near the eastern end of the Ditch <br />that can be used to drain the ditch during maintenance. <br />Interaction with District 20 Commissioner <br />Interaction between the Company and the District 20 Commissioners is less frequent than many <br />other ditches because of the seniority of the Company's water rights. That is, the Company's <br />rights are nearly always in priority and the river headgate requires much less frequent <br />adjustment. Communication with the Commissioners commonly involves more general <br />information than water availability to these senior rights. <br />Interaction with Company Share Owners <br />As previously described, the seniority of the Company's water rights provide sufficient supply <br />such that share owners almost never water short. The share owners actively work together to <br />ensure that water is available to individuals when they need it. Water users are responsible for <br />controlling their own individual headgates, although the ditch riders monitors these activities <br />Attachments <br />C:Acdss\CNTDitch.doc Centennial Irrigation Ditch Company Interview June 22, 1999 -Page 5 of 5 <br />