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Table 2 <br />Transit Mix - Grisenti Gravel Pits <br />Historical Irrigation Summary <br />Full 89.4 Acres 1 55.2 Acres Pro Rata <br />Month <br />I listorical <br />Diversions <br />(ac -ft) <br />III <br />Ditch <br />Loss <br />(ac -ft) <br />Ila]Ib <br />Farm <br />Delivery <br />(ac -ft) <br />Surface <br />Runoff <br />(ac -ft) <br />21 <br />Consumptive <br />Irrigation <br />Requirement <br />(ft) <br />131 <br />Consumptive <br />Irrigation <br />Requirement <br />(ac -ft) <br />1415 <br />Consumptive <br />Use (CU) <br />per Sta1cCU <br />(ac -ft) <br />To <br />Groundwater <br />(ac -ft) <br />61 <br />Glover <br />Lagging <br />Factors <br />(%) <br />[71 <br />Lagged <br />Groundwater <br />Retum now <br />(ac -ft) <br />1819 <br />Total <br />Retum <br />now <br />(ac -ft) <br />Historical <br />Stream <br />Depletion <br />(ac -ft) <br />10 <br />Historical <br />Stream <br />Accretion <br />(ac -ft) <br />I1] <br />Historical <br />Stream <br />Depiction <br />(ac -ft) <br />[121 <br />Historical <br />Stream <br />Accretion <br />(ac -ft) <br />1131 <br />Fch <br />0.01 <br />2.82 <br />2.82 <br />2.92 <br />1.74 <br />Mar <br />0.01 <br />2.72 <br />2.72 <br />2.72 <br />1.68 <br />Apr <br />43.45 <br />4.35 <br />39.11 <br />7.82 <br />0.14 <br />12.52 <br />9.65 <br />21.64 <br />0.07 <br />16.00 <br />23.83 <br />15.28 <br />9.44 <br />May <br />126.33 <br />12.63 <br />113.70 <br />22.74 <br />0.34 <br />30.40 <br />29.42 <br />61.54 <br />-0.19 <br />46.96 <br />69.70 <br />44.00 <br />27.17 <br />!un <br />127.98 <br />12.80 <br />115.18 <br />23.04 <br />0.58 <br />51.85 <br />50.73 <br />41.41 <br />0.19 <br />45.88 <br />68.92 <br />46.26 <br />28.56 <br />Jul <br />128.35 <br />12.83 <br />115.51 <br />23.10 <br />0.67 <br />59.90 <br />56.34 <br />36.07 <br />0.16 <br />40.05 <br />63.15 <br />52.36 <br />3233 <br />Aug <br />97.86 <br />9.79 <br />88.07 <br />17.61 <br />0.55 <br />49.17 <br />43.66 <br />26.80 <br />0.14 <br />34.18 <br />51.80 <br />36.27 <br />22.40 <br />Sep <br />65.15 <br />6.52 <br />58.64 <br />11.73 <br />0.33 <br />29.50 <br />25.98 <br />20.93 <br />0.08 <br />19.91 <br />31.64 <br />27.00 <br />16.67 <br />Oct <br />55.34 <br />5.53 <br />49.81 <br />9.% <br />0.07 <br />6.26 <br />5.11 <br />34.74 <br />0.07 <br />17.64 <br />27.60 <br />22.21 <br />13.71 <br />Nov <br />0.03 <br />8.35 <br />835 <br />8.35 <br />5.16 <br />Dec <br />0.02 <br />4.86 <br />4.86 <br />4.86 <br />3.00 <br />Jan <br />0.02 <br />3.73 <br />3.73 <br />3.73 <br />2.31 <br />Total <br />1 644.47 <br />64.45 <br />580.02 <br />1 116.00 <br />2.68 <br />239.59220.88 <br />243.13 <br />1.00 <br />243.13 <br />359.14 1 <br />243.38 <br />22.49 1 <br />150.27 <br />13.89 <br />Notes: <br />[ 11 Based upon analysis of Lester-Attebery Ditch daily diversions between 1950 - 2006, pro -rated based upon percent oatncnhip of each of the three nater rights totaling 9.1 cfs. <br />( la) Ditch Loss equals 101/6 of diversions, [ I] * 0.1. <br />[ I b] Farm Delivery equals diversions minus ditch loss, [ 1 ] - 112). <br />121 Surface Runoff equal to 20 percent of farm delivery: [lb] • 0.2. <br />131 Based upon Modified Blaney-Criddle analysis with an elevation adjustment for the Grisenti crop mix of primarily alfalfa, and climate records from the Canon City weather station from 1950 - 2006, as <br />computed in SlateCU. <br />141 Historical irrigation on Grisenti Ranch averaged 89.4 acres between 1950 and 2006, based upon aerial photo delineation and consistent with information provided by Mr. Grisenti. <br />[5] CU results front StateCU analysis. <br />161 Equals I Ib] - [2] -151. <br />[7] Lagging factors based upon a steady-state Glover analysis using the following parameters: D (weighted) = 700 feet, T = 40,000 gpd/R, and s- 0.087. <br />[8] Lagged Groundwater Return Flow equals annual amount To Groundwater distributed monthly using the Glover Factors, [6 Total] x 17 Monthly]. <br />19] Total Return Flow equals Surface Runoff+ Lagged GW Return Flow, [2] + 181. <br />[101 Historical Stream Depiction equals Historical Diversion less Total Return Mow,1 Ib] - [9]; if positive, else zero. <br />[III Historical Stream Accretion equals Total Return Flow less Historical Diversion ,19] -11b]; if positive, else zero. <br />[ 12] Based upon Phase t and partial Phase II mining r moving 55.2 acres of irrigated acreage, [10) * 55.2/89.4. <br />[ 13] Based upon Phase 1 and partial Phase ll mining removing 55.2 acres of irrigated acreage, [ l I]' 55.289.4. <br />BBA <br />'.n•. 811 fl Or 8RVGOLN A VVVfA tis 0NC hYedQ111(/IMII tRl <br />