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Diversion Structures <br />The diversion structure for the Centennial Ditch is located on the Rio Grande River in Section 2, <br />Township 38 North, Range 7 East. <br />Capacity Problems <br />There are no problems or concerns related to diversion or carrying capacity of the Centennial <br />Ditch. There is adequate canal capacity to divert the full 82.4 cfs of decreed rights at the Rio <br />Grande. Increased use of sprinkler systems under the Ditch has created more challenge in <br />managing ditch water because of the changes in water demands, i.e. the balance between supply <br />and demand has changed. <br />Water Measurement <br />The diversion structure of the Centennial Ditch is equipped with a measuring device and a <br />satellite communication system. There are no measurement devices on individual farm take-outs, <br />rather the ditch rider estimates deliveries to individual owners. Because of the good cooperation <br />between owners, precise measurement at individual farms is not essential. <br />Geographic Location and Size of Service Area <br />The service area of the Company is located to the south of the Rio Grande within Alamosa <br />County. There are approximately 9,500 acres irrigated under the system, and 8,700 acres were <br />irrigated in 1998. No water is delivered south of State Highway 285. The "service area" is <br />defined as that area which was historically irrigated by the Ditch. Most water deliveries are made <br />within 1.5 miles of the Ditch. <br />Laterals <br />The main Centennial Ditch is 18 miles long. There are no laterals off of the main canal, although <br />a portion of the original canal (used prior to rebuilding the main canal) is used to deliver water <br />to four owners who irrigate pasture ground. For the most part, water deliveries to share owners <br />are made through individual farm head gates off of the Ditch. No portion of the Ditch is lined. <br />Several of the Company owners also own water in the Commonwealth (Empire Canal) system) <br />This water may be used to irrigate the same lands as irrigated with Centennial Ditch water, but <br />may not be run in the Centennial Ditch. <br />Water Allocation Among Owners <br />Water is delivered to owners of the Company on a pro-rata basis, with water deliveries being <br />proportional to the number of shares owned. The amount of water actually delivered is also <br />dependent on the amount of water available for diversion at the river and the amount of <br />transportation loss experienced. <br />Based on appropriations of 82.4 cfs, each share of the Company is entitled to a delivery of 0.6 cfs. <br />In actuality, deliveries are approximately 0.5 cfs per share after accounting for transportation <br />losses. <br />C:Acdss\CNTDitch.doc Centennial Irrigation Ditch Company Interview June 22, 1999 -Page 3 of 5 <br />