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Table 2 <br /> Castle Concrete Aggregates-Grisenti Pit <br /> Historical Irrigation Summary <br /> Full 89.4 Acres 81.4 Acres Pro Rata <br /> Consumptive Consumptive Consumptive Glover Lagged Total Historical Historical Historical Historical <br /> Historical Ditch Farm Surface Irrigation Irrigation Use(CU) To Lagging Groundwater Return Stream Stream Stream Stream <br /> Diversions Loss Delivery Runoff Requirement Requirement per StateCU Groundwater Factors Return Flaw Flaw Depletion Accretion Depletion Accretion <br /> (ac-ft) (ac-ft) (ac-ft) (ac-ft) (ft) (ac-ft) (ac-ft) (ac-ft) N (ac-ft) (ac-ft) (ac-ft) (ac-ft) (ac-ft) (ac-ft) <br /> Month 1 1 a 1 b 2 3 4 5 ? 10 11 12 13 <br /> Apr 43.45 4.35 39.11 7.82 0.14 12.52 9.65 21.64 0.07 16.00 23.83 15.28 13.91 <br /> May 126.33 12.63 113.70 22.74 0.34 30.40 29.42 61.54 0.19 46.96 69.70 44.00 40.06 <br /> Jun 127.98 12.80 115.18 23.04 0.58 51.85 50.73 41.41 0.19 45.88 68.92 46.26 42.12 <br /> Jul 128.35 12.83 115.51 23.10 0.67 59.90 56.34 36.07 0.16 40.05 63.15 52.36 47.67 <br /> Aug 97.86 9.79 88.07 17.61 0.55 49.17 43.66 26.80 0.14 34.18 51.80 36.27 33.03 <br /> Sep 65.15 6.52 58.64 11.73 0.33 29.50 25.98 20.93 0.08 19.91 31.64 27.00 24.58 <br /> Oct 55.34 5.53 49.81 9.96 0.07 6.26 5.11 34.74 0.07 17.64 27.60 22.21 20.22 <br /> Nov 0.03 8.35 8.35 8.35 7.61 <br /> Dec 0.02 4.86 4.86 4.86 4.43 <br /> Jan 0.02 3.73 3.73 3.73 3.40 <br /> Feb 0.01 2.82 2.82 2.82 2.57 <br /> Mar 0.01 2.72 2.72 2.72 2.47 <br /> Total 644.47 64.45 580.02 116.00 2.68 239.59 220.88 243.13 100.00% 243.13 359.14 243.38 22.49 221.60 20.48 <br /> Notes- <br /> [I] Based upon analysis of Lester-Attebery Ditch daily diversions between 1950-2006,pro-rated based upon percent ownership of each of the three water rights totaling 9.1 cfs. <br /> [1 a] Ditch Lass equals 10%of diversions,[1] *0.1. <br /> [1 b] Farm Delivery equals diversions minus ditch lass,[1] -[1 a]. <br /> [2] Surface Runoff equal to 20 percent of farm delivery;[lb] *0.2. <br /> [3] 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 StateCU. <br /> [4] Historical irrigation on Grisenti farm 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 from StateCU analysis. <br /> [6] Equals[lb]-[2]-[5]. <br /> [7] Lagging factors based upon a steady-state Glover analysis using the following parameters: D(weighted)=700 feet,T=40,000 gpolft,and s=0.087. <br /> [8] Lagged Groundwater Return Flow equals annual amount To Groundwater distributed monthly using the Glover Factors,[6 Total]x[7 Monthly]. <br /> [9] Total Return Flaw equals Surface Runoff+Lagged GW Return Flaw,[2]+[8]. <br /> [10] Historical Stream Depletion equals Historical Diversion less Total Return Flaw,[1 b]-[9];if positive,else zero. <br /> [11] Historical Stream Accretion equals Total Return Flow less Historical Diversion, [9]-[I b];if pasltive,else zero. <br /> [12] Based upon Phase I and Phase 11 mining removing all 89.4 acres of irrigated acreage less up to 8 acres of land potentially irrigated by Grisentis on BLM land. [10] *81.4/89.4. <br /> [13]Based upon Phase I and Phase II mining removing all 89.4 acres of irrigated acreage less up to 8 acres of land potentially irrigated by Grisentis an BLM land. [11 81.4/89.4. <br /> BBA <br /> -�` P N Printed On:4116J2020 PJB <br />