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Table 4 <br />Summary of Fort Lupton Sand & Gravel Mine Augmentation Operations <br />(all values in acre-feet) <br /> Lupton 66271-F LFH <br /> Mine Lupton Bottom Bottom Ditch Well Return <br /> Lagged De-watering De-water Ditch Deliveries Returns 0.52 66271-F LFH Flow Net River Total Walk- <br />Month Depletions Depletions Accretions 0.52 shares shares Well Pumping Obligation Impact away <br /> 5.17 acres <br /> [1] [2] [3] [4] [5] [6] [71 181 191 <br />Jan-08 -2.98 -9.95 9.94 0.00 0.00 3.05 -0.06 0.00 ------- <br />Feb-08 -2.66 -9.95 9.94 0.00 0.00 2.73 -0.05 0.00 --- <br />Mar-08 -2.61 -9.95 9.94 0.46 -0.46 2.68 -0.05 0.00 -- <br />Apr-08 -2.71 -9.95 9.94 9.94 -7.63 0.42 -0.01 0.00 <br />May-08 -2.85 -9.95 9.94 15.25 -11.09 1.30 ------ <br />Jun-08 -3.07 -9.95 9.94 18.03 -12.25 2.69 ------- <br />Jul-08 -3.28 -9.95 9.94 19.18 -10.86 5.03 ----- <br />Aug-08 -3.40 -9.95 9.94 17.56 -12.25 1.90 ------- <br />Sep-08 -3.34 -9.95 9.94 15.25 -9.94 1.96 ---- <br />Oct-08 -3.06 -9.95 9.94 11.09 -8.78 0.78 -0.02 0.00 ------ <br />Nov-08 -2.73 -9.94 9.94 0.00 -1.85 4.68 -0.09 0.00 ----- <br />Dec-08 -2.42 -9.94 9.94 0.00 -0.23 2.71 -0.05 0.00 ---- <br />Total -35.11 -119.38 119.24 106.77 -75.34 17.05 -0.34 12.90 Rond <br /> Lupton 66271-F LFH <br /> Mine Lupton Bottom Bottom Ditch Well Return <br /> Lagged De-watering De-water Ditch Deliveries Returns 0.52 66271-F LFH Flow Net River Total Walk- <br />Month Depletions Depletions Accretions 0.52 shares shares Well Pumping Obligation Impact away <br /> 5.17 acres <br /> [1] [2] [3] [4] [5] [61 [7) [8] 191 <br />Jan-09 -2.32 -9.95 9.94 0.00 0.00 2.38 -0.05 0.00 ------ <br />Feb-09 -2.18 -9.95 9.94 0.00 0.00 2.24 -0.04 0.00 <br />Mar-09 -2.23 -9.95 9.94 0.46 -0.46 2.29 -0.05 0.00 --- <br />Apr-09 -2.38 -9.95 9.94 9.94 -7.63 0.08 0.00 0.00 ------ <br />May-09 -2.56 -9.95 9.94 15.25 -11.09 1.59 ----- <br />Jun-09 -2.82 -9.95 9.94 18.03 -12.25 2.94 ----- <br />Jul-09 -3.04 -9.95 9.94 1918 -10.86 5.27 -_____ <br />Aug-09 -3.18 -9.95 9.94 17.56 -12.25 2.12 ------- <br />Sep-09 -3.14 -9.95 9.94 15.25 -9.94 2.16 ------- <br />Oct-09 -2.88 -9.95 9.94 11.09 -8.78 0.59 -0.01 0.00 -- <br />Nov-09 -2.56 -9.94 9.94 0.00 -1.85 4.50 -0.09 0.00 - <br />Dec-09 -2.26 -9.94 9.94 0.00 -0.23 2.54 -0.05 0.00 ------- <br />Total -31.55 -119.38 119.24 106.77 -7534 14.62 -0.29 14 07 Rnnd <br />[1] Total lagged depletions for Fort Lupton S&G Mine, colmnn[18], Table lc <br />[2] Lagged depletions from de-water activities, Table 3 <br />[31 Lagged accretions from de-water activities, Table 3 <br />[41 Average 1950 - 2003 Lupton Bottom Ditch farm headgate deliveries shares Lupton Ditch (10% ditch loss, from Table 5 2005 SWSP) <br />[5] Historical lagged return flows shares Lupton Bottom Ditch - includes surface water return component, from Table 5 2005 SWSP <br />(61 Pumping from Laramie-Fox Hills Wells 66271-F, 66273-F, 66274-F <br />[7] Replacement obligation: column[6] x .02 <br />[81 Net river impact after credit from excess augmentation supply: col[t] + col[2] + col[31 + col[4] + col[5] + col[6] + col[7] <br />[9] Walk-away requirements - met pursuant to Bond posted under DMG M-99-120. <br />JR Engineering, LLC <br />L.G. Everist <br />3/3/2008 Ft Lupton 2008-2009 SWSP Ft Lupton 2008 SWSP v2 08 01 014.xls