2016-05-13_HYDROLOGY - M1985218 - Laserfiche WebLink

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Table 1 Martin Marietta Rich Pit Active Pit Depletions Percent of Annual Gross Evaporation Exposed Surface Average Effective Net Evaporation Net Evaporation Lagged Month Evaporation Rate Area Gross Evaporation Precipitation Precipitation Rate Depletions Depletions (%) (fl) (ac) (acfl) (0) (ft) (0) (ac-01 (ac-fl) 111 (21 131 (41 151 [6] 171 181 191 Apr-I6 9.0% 0.38 16.7 6.26 0.10 0.07 0.30 5.01 3.79 May-16 12.0% 0.50 16.7 8.35 0.12 0.09 0.41 6 85 5.34 Jun-16 14.5% 0.60 16.7 10.09 0.11 0.08 0.52 8 68 6.93 Jul-16 15.0% 0.63 16.7 10,44 0.16 0.11 0.51 8 52 7.67 Aug-16 13.5% 0.56 16.7 9.39 0.17 0.12 0,44 7.35 7.49 Sep-16 10.0% 0.42 16.7 6.96 0.07 0.05 0.37 6.18 6.91 Oct-16 7.0% 0.29 16.7 4.87 0.06 0.04 0.25 4.18 5.77 Nov-16 4.0% 0.17 16.7 2.78 0.04 0.03 0.14 2.34 4.40 Dec-16 3.0% 0.13 16.7 2.09 0.03 0.02 0,11 1.84 3.51 Jan-17 3.0% 0.13 16.7 2.09 0.03 0.02 0.11 1.84 3.11 Feb-17 3.5% 0.15 16.7 2.44 0.03 0.02 0.13 2.17 3.00 Mar-17 5.5% 0.23 16.7 3.83 0.07 0.05 0.18 _ 3.01 3.26 Total 100% 4.17 - 69.58 1.00 0.70 3.47 57.89 61.18 Notes: [I]Monthly percentages determined in SB89-120 for elevations below 6,500 feet. [2]Based upon NOAA Technical Report NWS 33,Evaporation Atlas for the Contiguous 48 United States. [3]Total exposed surface area based on review of aerial photography. 141 Gross evaporation=[2]x[3]. [5]Based upon the Western Regional Climate Center Station for Pueblo,CO(056740)for the time period 1954-2005. [6]Effective precipitation [5]x 0.7. [7]Net evaporation rate [2]-[6]. [8]Net evaporation depletions [7]x[3]. [9]Reflects real time lagged depletions due to evaporation based on two Glover analyses! All depletions incurred through March 2016 are lagged using a stream depletion factor of 7.3 days All depletions incurred after March 2016 are lagged based upon the following parameters.x-864 fl,W-4,121 ft,s-0.2,T-80,000 gpd/f _.. 16....BBA water conaurtancs