2009-04-01_HYDROLOGY - M1980149 - Laserfiche WebLink

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Rachel Kullman March 25, 2009 will be stored in the Varra Pit No. 112, which lies directly to the south of the Hokestra Property and across the Rural Ditch. It is estimated that 67.82 acre-feet of excess credits will be available for storage during this plan period. According to the reservoir operations model for the 112 Pit, the water placed in the 112 pit will incur an evaporative loss of 5% or 3.39 acre-feet. The 112 Pit has access to a ditch headgate, which will be used to deliver the excess river credits to the lined reservoir for storage. The stored water will be released from the pit to cover depletions from the site as shown in attached Table No. 4. The 3.75 shares of the Rural Ditch were historically used to irrigate the four farms listed below: Adler Farm The Adler farm was historically irrigated using 5 shares of the Rural Ditch of which Weld County owns 1 share. The 5 shares were historically used to irrigate 168 acres of corn and 63 acres of Pasture grass, all of which has been taken out of production. The historic consumptive use of the 5 shares was determined to be 209.6 acre-feet. The prorata historic consumptive use for 1 share is 41.9 acre-feet. Gould Farm The Gould farm was historically irrigated using 2 shares of the Rural Ditch of which Weld County owns 1 share. The 2 shares were historically used to irrigate 55 acres of corn, all of which has been taken out of production. The historic consumptive use of the 2 shares was determined to be 66.4 acre-feet. The prorata historic consumptive use for 1 share is 33.2 acre-feet. The Villa Property The Villa Property was historically irrigated using 1.5 shares of the Rural Ditch owned by Weld County. The 1.5 shares were historically used to irrigate 27 acres of corn and 27 acres of Pasture grass, all of which has been taken out of production. The historic consumptive use of the 1.5 shares was determined to be 61.7 acre-feet. Slovek Prone The Slovek Property was historically irrigated using 1 share of the Rural Ditch of which Weld County owns 0.25 shares. The 1 share was historically used to irrigate 30 acres of corn and 30 acres of Pasture grass, all of which has been taken out of production. The historic consumptive use of the 1 share was determined to be 50.5 acre-feet. The prorata historic consumptive use for 0.25 shares is 12.6 acre-feet. Weld County has obtained a lease from SVLH for 27.0 acre-feet and a copy of the lease is attached to this letter. This lease will be used to replace depletions in April and May 2009. The amount leased from the SVLH includes a transit loss of 0.25% per mile for the 12 miles between the pit location and the discharge point for the SVLH water. Weld County has a perpetual lease with Greeley for the right to use up to 300 acre-feet per year of Greeley's reusable effluent. This perpetual lease is used by the Weld County for several projects. As shown on the attached Table 4, 20.81 acre-feet will be used in February and March 2010 to replace depletions from the Hokestra Pit. A copy of the Greeley lease is attached to this