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Table 1 <br />EVAPORATIVE LOSSES <br />Evans #2 Pit <br />2013 Plan Year (Rev'd 5/31/2013) <br />(I) (2) (3) (4) (5) (6) (7) (8) <br />Plan Year <br />2013 <br />Month <br />Percent of <br />Annual <br />Evaporation <br />Gross Pond <br />Evaporation <br />(inches) <br />Average <br />Precipitation <br />(inches) <br />Effective <br />Precipitation <br />70% <br />(inches) <br />Net Pond <br />Evaporation <br />(inches) <br />Net Pond <br />Evaporation <br />(acre- feet/acre) <br />Water <br />Surface <br />Area <br />(acres) <br />Net Pond <br />Evaporation <br />8.0 acres <br />(acre -feet) <br />April <br />9.0% <br />4.52 <br />0.88 <br />0.62 <br />3.90 <br />0.33 <br />12.00 <br />3.90 <br />May <br />12.0% <br />6.02 <br />1.25 <br />0.88 <br />5.15 <br />0:43 <br />12.00 <br />5.15 <br />June <br />14.5% <br />7.28 <br />1.25 <br />0,88 <br />6.40 <br />0.53 <br />8.00 <br />4.27 <br />July <br />15.0% <br />7.53 <br />2.09 <br />1.46 <br />6.07 <br />0.51 <br />8.00 <br />4.04 <br />August <br />13.5% <br />6.78 <br />1.99 <br />1.39 <br />5.38 <br />0:45 <br />8.00 <br />3.59 <br />September <br />10.0% <br />5.02 <br />0.90 <br />0.63 <br />4.39 <br />0.37 <br />8.00 <br />2.93 <br />October <br />7.0% <br />3.51 <br />0.57 <br />0.40 <br />3.12 <br />0.26 <br />8.00 <br />2.08 <br />November <br />4.0% <br />2.01 <br />0.43 <br />0.30 <br />1.71 <br />0.14 <br />8.00 <br />1.14 <br />December <br />3.0% <br />1.51 <br />0.42 <br />0.29 <br />1.21 <br />0.10 <br />8.00 <br />0.81 <br />January <br />3.0% <br />1.51 <br />0.32 <br />0.22 <br />1.28 <br />0.11 <br />8.00 <br />0.85 <br />February <br />3.5% <br />1.76 <br />0.31 <br />0.22 <br />1.54 <br />0.13 <br />8.00 <br />1.03 <br />March <br />5.5% <br />2.76 <br />0.78 <br />0.55 <br />2.22 <br />0.18 <br />8.00 <br />1.48 <br />Total <br />100.0% <br />50.20 <br />11.19 <br />7.83 <br />42.37 <br />3.53 <br />31.26 <br />Notes: <br />(1) Based SEO information for elevations below 6,500 feet. <br />(2) Equals 50.2 inches from NWS 33, Map 3, times Column (1). <br />(3) From NOAA Climatological Data Annual Summary, Colorado. <br />(4) Equals Column (3) times 70%. <br />(5) Equals Column (2) minus Column (4). <br />(6) Equals Column (5) divided by 12. <br />(8) Equals Pond Surface Area times Column (6). <br />Deere & Auk Consultants, Inc. 5/31/20-.1283 Evans #2 Pit\009 2013 SWSP Renewal\Amended SWSP May 2013\2013 Evans #2 Ph Amended SWSP Tables 5_31_13.xls <br />