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Table No. 1 <br />Alpine Aggregates, Inc. <br />River Valley Resource Pit SWSP <br />Evaporative Losses <br />Applegate <br />Group, Inc. <br />11/26113 <br />Job No II -101 <br />Month <br />Percent of <br />Annual <br />Evaporation <br />A <br />Gross Pond <br />Evaporation <br />(ft) <br />B <br />Precipitation <br />(In) <br />C <br />Effective <br />Precipitation <br />(ft) <br />D <br />Net Pond <br />Evaporation <br />(ft) <br />E <br />Total Pond <br />Evaporation <br />(ac -ft) <br />F) <br />Jan <br />1.0% <br />0.03 <br />2.64 <br />0.15 <br />0.00 <br />0.00 <br />Feb <br />3.0% <br />0.09 <br />2.11 <br />0.12 <br />0.00 <br />0.00 <br />Mar <br />6.0% <br />0.19 <br />1.97 <br />0.11 <br />0.07 <br />0.07 <br />Apr <br />9.0% <br />0.28 <br />2.31 <br />0.13 <br />0.14 <br />0,14 <br />May <br />12.5% <br />0.39 <br />2.07 <br />0.12 <br />0.26 <br />0.26 <br />Jun <br />15.5% <br />0.48 <br />1.55 <br />0.09 <br />0.39 <br />0.39 <br />Jul <br />16.0% <br />0.49 <br />1.50 <br />0.09 <br />0.41 <br />0.41 <br />Aug <br />13.0% <br />0.40 <br />1.61 <br />0.09 <br />0.31 <br />0.31 <br />Sep <br />11.0% <br />0.34 <br />1.82 <br />0.11 <br />0.23 <br />0.23 <br />Oct <br />7.5% <br />0.23 <br />1.77 <br />0.10 <br />0.13 <br />0.13 <br />Nov <br />4.0% <br />0.12 <br />2.18 <br />0.13 <br />0.00 <br />0.00 <br />Dec <br />1.5% <br />0.05 <br />2.50 <br />0.15 <br />0.00 <br />0.00 <br />Total <br />100% <br />3.08 <br />24.04 <br />1.40 <br />1.94 <br />1.94 <br />Total Exposed Water Surface = 1.0 acres <br />Annual Precipitation = 24.04 in /yr <br />Gross Annual Evaporation = 37 in /yr <br />LEGEND <br />(A) Percent of anr,ial evaperation f,om SEO guidelines for elevations > 6,500 feet <br />(B) Gross pond evaporation, (B) = (A)' (gross annual evaporat,on /123 - Taken from NOAATechnica Report NWS 33 <br />(C) Preop�ta *_,or data from NOAA Weather Station in Steamboat Spr,ngs (1950 - 2005 average) <br />(D) Effectve prec prtator, (D) = ((Q,'12j • 70 11/e <br />(E) Net lase evaperat,or !f g -eater than zero, (E) = (B) - (D) <br />(F) Tota' lake evaporation, (F) = (E) ' exposed surface area <br />RECEIVED <br />MAR 2 7 2014 <br />Division of Reclamation, <br />Mining & Safety <br />