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Amended Application for Underground Water Right and Change of Water Right Case No. 13 CW 3081 Ruling of Referee and Decree Page 5 Thousand Three Hundred Forty-Six (5346) feet, the general course of said ditch being thence in a general southwesterly direction about Five Thousand Eight Hundred Sixty-Six (5866) feet onto the land of the Petitioners. iii. Source: Colorado River. iv. Appropriation Date: April 1, 1907 V. Amount: 2.26 c.f.s. vi. Decreed and Historic Use: Irrigation of up to 113 acres. 14. Change Requested:Co-Applicants request that the 102.51 acre feet of historical consumptive use for the Senior Evans Ditch, as shown on Table 4, be quantified and changed for augmentation and replacement of out-of-priority depletions from domestic or irrigation uses within the West Divide service area boundaries. West Divide intends to use these consumptive use credits as a substitute supply for its plans for augmentation including those decreed in Case Nos.: 94CW344,02CW 123,02CW225,02CW 165,05CW 148,05CW296, and 07CW229, Water Division No. 5, and plans that may be decreed in the future. This additional water supply will protect against future Colorado River calls placed by the Grand Valley Project and others. As historically operated,these credits will only be used to supply augmentation water for domestic and irrigation uses by West Divide contractees. West Divide's use of the consumptive use credit amounts shall not exceed the values shown in Column 5 of Table 4. A. Historical Consumptive Use: The Senior Evans Ditch was decreed for the irrigation of l l3 acres_ There is also a junior Evans Ditch water right,which is not subject to this Application, which was decreed to irrigate a total of 168 acres, including the same 113 acres under the Senior Evans water right. A summary of the historical diversion records for the Senior Evans Ditch from 1950 to 2013 is attached as Table 1. A review of historical aerial photographs shows that the irrigated acreage on the property has varied over time.The maximum number of acres irrigatedwas 122 acres from 1962 through about 1980. The maximum area of historically irrigated land at the property (122 acres) is shown in Figure 2; 113 acres of the 122 acres has been retired from irrigation in support of this Application and will not be irrigated by the junior Evans Ditch water right in the future. See Figure 2.The historical consumptive use associated with irrigation diversions made under the Senior Evans Ditch was assessed on a monthly basis by using aerial photographs showing the historically irrigated acreage over time, the irrigation water requirements associated with those acreages up to the maximum 113 acres irrigated by the Senior Evans Ditch,irrigation diversions attributed to the Senior Evans Ditch, and an irrigation efficiency of 45%. Results of the monthly assessment are shown in Table 2. The average annual historical consumptive use associated with the Senior Evans Ditch is 103.18 acre