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Month <br />Percent of <br />Annual <br />Evaporation <br />Gross Lake <br />Evaporation <br />[ft] <br />Preciptation <br />[in] <br />Effective <br />Preciptation <br />[ft] <br />Net Lake <br />Evaporation <br />[ac- ft/ac] <br />Total Lake <br />Evaporation <br />[ac -ft] <br />Apr -12 <br />9.0% <br />0.30 <br />2.01 <br />0.12 <br />0.18 ( <br />0.18 <br />May -12 <br />12.0% <br />0.40 <br />2.78 <br />0.16 <br />0.24 <br />0.24 <br />Jun -12 <br />14.5% <br />0.48 <br />1.83 <br />0.11 <br />0.38 <br />0.38 <br />Jul -12 <br />15.0% <br />0.50 <br />1.56 <br />0.09 <br />0.41 <br />0.41 <br />Aug -12 <br />13.5% <br />0.45 <br />1.43 <br />0.08 <br />0.37 <br />0.37 <br />Sep -12 <br />10.0% <br />0.33 <br />1.30 <br />0.08 <br />0.26 <br />0.26 <br />Oct -12 <br />7.0% <br />0.23 <br />1.11 <br />0.06 <br />0.17 <br />0.17 <br />Nov -12 <br />4.0% <br />0.13 <br />0.60 <br />0.04 <br />0.10 <br />0.10 <br />Dec -12 <br />3.0% <br />0.10 <br />0.46 <br />0.03 <br />0.07 <br />0.07 <br />Jan -13 <br />3.0% <br />0.10 <br />0.37 <br />0.02 <br />0.08 <br />0.08 <br />Feb -13 <br />3.5% <br />0.12 <br />0.49 <br />0.03 <br />0.09 <br />0.09 <br />Mar -13 <br />5.5% <br />0.18 <br />1.20 <br />0.07 <br />0.11 <br />0.11 <br />Total <br />100% <br />3.33 <br />15.14 <br />0.88 <br />2.45 <br />2.45 <br />Table No. 1 <br />Connell Resources <br />Serfer Pit <br />Substitute Water Supply Plan - Evaporative Losses <br />(1) <br />(2) <br />Exposed Water Surface = <br />Annual Precipitation = <br />Gross Annual Evaporation = <br />1.0 <br />15.14 <br />40 <br />N \05114 CRI SSPs\Dhsciplm s (Tcchmcal) \Water Rights 'SSPs \Sala P t\2012 Renerml \SerFcr CU 'Is. <br />(3) <br />(4) <br />r b,„ Applegate <br />Group, ine. <br />(5) <br />(6) <br />acres -2 settling ponds and dewatering trenches <br />inches -Taken from World Climate Website - Fort Collins Station <br />inches -Taken from NOAA Technical Report NWS 33 <br />Notes <br />(1) Taken from State Engineers Guidelines for Gravel Pits at elevations below 6500 feet <br />(2) Taken from NOAA Technical Report NWS 33 Map 3 and distributed monthly according to Percent of Annual Evaporation (1) <br />(3) Average annual precip taken from CDSS and monthly percentages taken from Western Regional Climate Center Fort Collins #053005 (1900 -2005) <br />http: //www S%TCC do edu/ <br />(4) Effective Precipitation equals 70% of Average Annual Precipitation, 70% • (3) <br />(5) Gross Evaporation minus Effective Precipitation converted to units of feet, (2) - (4) <br />(6) Total Evaporative Loss is the product of Net Evaporation (5) and Exposed Water Surface <br />