2011-11-29_HYDROLOGY - M1982131 - Laserfiche WebLink

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Mr. Jared Dains Page 4 November 29, 2011 The applicant's GIC shares will be delivered to the Cache La Poudre River at the 23` Avenue and Fourth Street Return Station. Those replacements will be made directly adjacent to the Bucklen Pit. Due to close proximity of the return station to the Bucklen Pit, no transit losses will be assessed to the delivery of the GIC shares. A portion of the Greeley Canal No. 3 was changed in Division 1 Water Court in case no. 96CW658 based on a ditch -wide analysis by the Poudre Prairie Mutual Reservoir and Irrigation Company. The use of the subject ditch shares in this plan shall be in accordance with the terms and conditions decreed in case no. 1996CW658, including monthly and annual volumetric limits on water deliveries and monthly return flow requirements. The decree in case no. 1996CW658 found that 519.7 shares were used to irrigate 3,501 acres with an average historical consumptive use of 5,358 acre -feet per year, which yields an average consumptive use credit of 10.31 acre -feet per share (5,358 acre- feet/519.7 shares). Based on the above, the 5 shares to be used in this plan results in a consumptive use credit of approximately 51 acre -feet per year (10.31 acre -feet per share x 5 shares). The Applicant owns a total of six GIC shares. One of the Applicant's shares was associated with Farm W -49, which is now dried up because it is part of the Bucklen Pit. The other five shares were referred to as "floating shares" in case no. 1996CW658. In accordance with paragraph 19 of case no. 1996CW658 the lands historically irrigated by the "floating shares" are reported to have already been dried up and are no longer irrigated. In paragraph 6.7.4 of the decree in case no. 1996CW658, future farm headgate deliveries of the 67.75 shares were limited to 1,712 acre -feet per year (25.26 acre -feet per share) and 12,631 acre - feet (186.43 acre -feet per share) in any consecutive 10 year period. Deliveries of the 5 shares of GIC water under this plan must comply with these limits. The historical return flows shall be maintained in accordance with the return flow factors identified in case no. 1996CW658. The return flows associated with the delivery of Fossil Creek Reservoir water that is attributable to the 5 GIC shares shall also be maintained in accordance with the surface and subsurface factors decreed in case nos. 1996CW658. Pursuant to paragraph 6.7.6 of case no. 1996CW658, the subsurface component of the return flow obligation will be calculated by multiplying the 5 year running average annual farm headgate deliveries of GIC direct flow water and Fossil Creek Reservoir water. As WY 2009 was the first year that GIC shares were used for augmentation purposes at this pit, the subsurface return flow obligations will only be based on the average of WY 2009, 2010, and 2011 deliveries. The estimated subsurface return flow obligations for the water year 2011 for the GIC direct deliveries and Fossil Creek Reservoir deliveries are 14.87 acre -feet and 0.00 acre -feet, respectively (Table 4). For projections of WY 2012 deliveries, the Applicant used a dry-year yield of 17.75 acre -feet per share. This value was taken from decree 03CW348, a change case involving similar GIC shares. As specified in case no. 96CW658, all deliveries of GIC water incur an immediate surface return flow obligation of 23.7 %. In total, the five GIC shares are expected to have a net credit to the river of 13.54 acre -feet before the subsurface return flow obligations are deducted. Platte River Power Authority Lease During the period of November 2011 through March 2012, a lease of 18.9 acre -feet of fully consumable water provided by the Platte River Power Authority ( "PRPA ") will be used to make replacements during the non - irrigation season. PRPA has an "Agreement for the Reuse of Water for Energy Generation ", dated August 10, 1978, with the City of Fort Collins ( "Fort Collins ") and Water Supply and Storage Company ( "WSSC ") that provides PRPA with the right to receive reusable water delivered by Fort Collins. PRPA, Fort Collins, and WSSC also obtained approval of