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AI.1. Evaporative Loss Calculation Worksheet - Existing Ponds <br />Area of Exposed Groundwater.• <br />(1) (2) <br />29.49 acres <br />(3) (4) (5) (6) (7) (8) (9) (10) <br />Notes: <br />(1) = Monthly fraction of evaporation for elevations below 6500 ft from Guidelines <br />for Substitute Water Supply Plans. <br />(2) = Gross free water surface evaporation from NOAA Technical Report NWS 33 <br />(3) = Columns (1) x (2) <br />(4) = Total free water surface area - 18.1 ac pond <br />(5) = Columns (3) x (4) Values Set to Zero For Ice Cover Months (Dec -Feb) <br />(6) = Mean Rainfall Fb r'i- & 411n 5 C / ?73-- ,�o /o) <br />(7) = Effective Rainfall = Column (6)* 0.7 <br />(8) = Column (7) " (1/12)"` Column (4) <br />(9) = Column (5) - Coulmn (8) <br />(10) =Lagged Evaporative Loss (see AI.5) <br />Gross Free <br />Free Water <br />Total Net <br />Monthly <br />Surface <br />Monthly <br />Surface <br />Gross <br />Effective <br />Effective <br />Total Net <br />Lagged <br />Fraction of <br />Evaporation <br />Evaporation <br />Area <br />Evaporation Mean Rainfall <br />Precipitation <br />Precipitation <br />Evaporation <br />Evaporation <br />Month <br />Evaporation <br />[ft] <br />[ft] <br />[acre] <br />[acre -ft] <br />[in] <br />[in] <br />[acre -ft] <br />[acre -ft] <br />[acre -ft] <br />Jan <br />0.03 <br />3.25 <br />0.10 <br />21.49 <br />0.00 <br />0.37 <br />0.26 <br />0.46 <br />0.00 <br />1.70 <br />Feb <br />0.04 <br />3.25 <br />0.11 <br />21.49 <br />0.00 <br />0.49 <br />0.34 <br />0.61 <br />0.00 <br />1.36 <br />Mar <br />0.06 <br />3.25 <br />0.18 <br />21.49 <br />3.84 <br />1.16 <br />0.81 <br />1.45 <br />2.39 <br />1.89 <br />Apr <br />0.09 <br />3.25 <br />0.29 <br />21.49 <br />6.29 <br />2.00 <br />1.40 <br />2.51 <br />3.78 <br />2.81 <br />May <br />0.12 <br />125 <br />0.39 <br />21.49 <br />8.38 <br />2.80 <br />1.96 <br />3.51 <br />4.87 <br />3.61 <br />June <br />0.15 <br />3.25 <br />0.47 <br />21.49 <br />10.13 <br />1.83 <br />1.28 <br />2.29 <br />7.83 <br />4.99 <br />Jul <br />0.15 <br />125 <br />0.49 <br />21.49 <br />10.48 <br />1.60 <br />1.12 <br />2.01 <br />8.47 <br />6.19 <br />Aug <br />0.14 <br />3.25 <br />0.44 <br />21.49 <br />9.43 <br />1.40 <br />0.98 <br />1.76 <br />7.67 <br />6.50 <br />Sep <br />0.10 <br />3.25 <br />0.33 <br />21.49 <br />6.98 <br />1.31 <br />0.92 <br />1.64 <br />5.34 <br />5.84 <br />Oct <br />0.07 <br />3.25 <br />0.23 <br />21.49 <br />4.89 <br />1.11 <br />0.78 <br />1.39 <br />3.50 <br />4.77 <br />Nov <br />0.04 <br />3:25 <br />0.13 <br />21.49 <br />2.79 <br />0.60 <br />0.42 <br />0.75 <br />2.04 <br />3.73 <br />Dec <br />0.03 <br />3.25 <br />0.10 <br />21.49 <br />0.00 <br />0.47 <br />0.33 <br />0.59 <br />0.00 <br />2.50 <br />totals <br />3.25 <br />63.21 <br />15.14 <br />10.60 <br />45.90 <br />45.90 <br />Notes: <br />(1) = Monthly fraction of evaporation for elevations below 6500 ft from Guidelines <br />for Substitute Water Supply Plans. <br />(2) = Gross free water surface evaporation from NOAA Technical Report NWS 33 <br />(3) = Columns (1) x (2) <br />(4) = Total free water surface area - 18.1 ac pond <br />(5) = Columns (3) x (4) Values Set to Zero For Ice Cover Months (Dec -Feb) <br />(6) = Mean Rainfall Fb r'i- & 411n 5 C / ?73-- ,�o /o) <br />(7) = Effective Rainfall = Column (6)* 0.7 <br />(8) = Column (7) " (1/12)"` Column (4) <br />(9) = Column (5) - Coulmn (8) <br />(10) =Lagged Evaporative Loss (see AI.5) <br />