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Tabic 1 <br />Martin Marietta Rich Pit <br />Active Pit Depletions <br />Month <br />Percent u! Annual <br />Evaporation <br />(%) <br />I <br />Gross Evaporation <br />Rale <br />(fl) <br />(21 <br />Exposed Surface <br />Area <br />(ac) <br />N <br />Gross Evaporation <br />(ac-fll <br />[41 <br />Average <br />precipitation <br />(il) <br />15161 <br />Effeetie <br />h <br />Precupitati- <br />(ft) <br />Net Evaporation <br />Rate <br />(fl) <br />[71 <br />Net Evaporation <br />❑epletinns <br />lac -ft) <br />18111 <br />Lagged <br />Depletions <br />Ix -R) <br />Apr-17 <br />9.0% <br />1) 38 <br />16.7 <br />6 iii <br />0 10 <br />0 O7 <br />0 10 <br />5 01 <br />4.26 <br />Mev -17 <br />12 0% <br />0.50 <br />16,7 <br />8 35 <br />012 <br />0 09 <br />041 <br />6 85 <br />5 59 <br />Jun -17 <br />145% <br />060 <br />16,7 <br />1009 <br />0.11 <br />0.08 <br />0.52 <br />868 <br />706 <br />Jul -17 <br />150% <br />063 <br />16.7 <br />1044 <br />0.16 <br />0.11 <br />0.51 <br />852 <br />7.71 <br />Ang-17 <br />13 5% <br />0 5h <br />16,7 <br />939 <br />0 17 <br />0.12 <br />0.44 <br />7 35 <br />746 <br />Sep -I1 <br />1001/6 <br />042 <br />16.7 <br />6.96 <br />0 07 <br />0.05 <br />0 37 <br />6 18 <br />684 <br />Clot -17 <br />70% <br />0.29 <br />16.7 <br />487 <br />006 <br />0.04 <br />0.25 <br />4 18 <br />569 <br />Nov -17 <br />401-a <br />017 <br />167 <br />7.78 <br />004 <br />00" <br />014 <br />234 <br />428 <br />Dec -17 <br />3.0% <br />0 1 <br />167 <br />209 <br />i) 03 <br />0.02 <br />0 I 1 <br />1 84 <br />3 38 <br />Jan -18 <br />3 0% <br />0 13 <br />167 <br />209 <br />n 1)i <br />0 02 <br />0 11 <br />1 84 <br />2 97 <br />Feb -18 <br />3 54o <br />i, 15 <br />16,7 <br />244 <br />0.03 <br />0.02 <br />013 <br />217 <br />287 <br />ltiar-16 <br />5 5°-o <br />i_3 <br />16,7 <br />3 83 <br />0.07 <br />0.05 <br />0 18 <br />3 nl <br />3 14 <br />Tata1 <br />1004; <br />417 <br />69.58 <br />IAO <br />0.70 <br />347 <br />51.1 <br />61.23 <br />Notes <br />[ I ] Monthly percentages detcrinured in SB89-120 for elevations below 6 5D0 feet <br />[2]Based upon NOAA Technical Report NWS 33, Evaporation Atlas for the Contiguous 48 United States <br />[3] Total exposed surface area based on review or aerial photography. <br />[4] Gross evaporation = [2] x [3 ] <br />[5] Based upon the Western Regional Climate Center Station for Pueblo, CO (056740) for She time period 1954-2005 <br />{6] Effecttve precipitation - [5] x 0.7 <br />17] ?Ver evaporation raze = [2] - (61 <br />[8] Net evaporation depletionx- [7] x [3] <br />[9] Rctleets real time lagged depletions due to evaporation based on two Clover analyses <br />All depletions incurred through March 2016 are lagged using a stream depiction factor of 7 1 days <br />All depletions incurred after March 2016 are lagged based upon the following parameters .a= 864 ft, W-4,1 21 fl, s-0 Z. T-8❑ 400 gpolfl <br />BBA <br />