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Month <br />(1) <br />(2) <br />(3) <br />(4) <br />(5) <br />(6) <br />(7) <br />(8) <br />(9) <br />Monthly <br />Evaporation <br />Distribution <br />Gross <br />Evaporation <br />Average Year <br />Precipitation <br />Effective <br />Precipitation <br />Net Unit <br />Evaporation <br />Net Unit <br />Evaporation <br />Phase 1 <br />Total <br />Evaporation <br />Average <br />Temperature <br />at Palisade <br />Phase 1 <br />Total <br />Evaporation <br />Adjusted for <br />Ice <br />( %) <br />(inches) <br />(inches) <br />(inches) <br />(inches) <br />(feet) <br />(acre -feet) <br />( ° F) <br />(acre -feet) <br />January <br />3.0 <br />1.41 <br />0.54 <br />0.38 <br />1.03 <br />0.09 <br />0.07 <br />28.6 <br />0.00 <br />February <br />3.5 <br />1.65 <br />0.58 <br />0.41 <br />1.24 <br />0.10 <br />0.08 <br />35.6 <br />0.08 <br />March <br />5.5 <br />2.59 <br />0.85 <br />0.60 <br />1.99 <br />0.17 <br />0.13 <br />44.4 <br />0.13 <br />April <br />9.0 <br />4.23 <br />1.04 <br />0.73 <br />3.50 <br />0.29 <br />0.23 <br />53.4 <br />0.23 <br />May <br />12.0 <br />5.64 <br />0.93 <br />0.65 <br />4.99 <br />0.42 <br />0.32 <br />62.7 <br />0.32 <br />June <br />14.5 <br />6.82 <br />0.60 <br />0.42 <br />6.40 <br />0.53 <br />0.42 <br />72.5 <br />0.42 <br />July <br />15.0 <br />7.05 <br />0.70 <br />0.49 <br />6.56 <br />0.55 <br />0.43 <br />78.8 <br />0.43 <br />August <br />13.5 <br />6.35 <br />0.99 <br />0.69 <br />5.65 <br />0.47 <br />0.37 <br />76.1 <br />0.37 <br />September <br />10.0 <br />4.70 <br />1.23 <br />0.86 <br />3.84 <br />0.32 <br />0.25 <br />67.7 <br />0.25 <br />October <br />7.0 <br />3.29 <br />1.18 <br />0.83 <br />2.46 <br />0.21 <br />0.16 <br />55.4 <br />0.16 <br />November <br />4.0 <br />1.88 <br />0.77 <br />0.54 <br />1.34 <br />0.11 <br />0.09 <br />41.6 <br />0.09 <br />December <br />3.0 <br />1.41 <br />0.57 <br />0.40 <br />1.01 <br />0.08 <br />0.07 <br />31.3 <br />0.00 <br />Annual <br />I 100 <br />47.00 <br />9.98 <br />6.99 <br />40.01 <br />3.33 <br />2.60 <br />2.47 <br />Phase 1 Groundwater Exposed 0.78 acres <br />Gross Evaporation 47 <br />Precipitation Station Palisade <br />Table 1 <br />Debeque Gravel Pit <br />Phase 1 Active Mining Evaporative Depletions <br />inches (from NOAA Technical Report NWS 33) <br />Notes: <br />1) From SEO's Guidelines (2/28/95) for sites with elevation less than 6,500 ft <br />2) Annual value from NOAH Technical Report NWS 33. <br />3) Average annual precipitation data from NOAA recording station at Palisade. <br />4) Equals Column (3) x 0 70 <br />5) Column (2) - Column (4) <br />6) Column (5) / 12 <br />7) Column (6) x number of exposed groundwater surface acres in Phase 1. <br />8) Average Monthly Temperature at Palisade Weather Station from Western Regional Climate Center over period of record from 1911 to 2012. <br />9) If Column (8) is less than 32 ° F then evaporation is zero, otherwise Column (7). <br />P \061 -052 \060 - Debeque Gravel Pit \SWSP \2012 -2013 SWSP \Updated SWSP for 2 Year Renewal\ Wright Water Engineers, Inc <br />Tables Updated for 2 Year Renewal Updated Call Period xlsx 7/6/2012 <br />Des By: BMN <br />Ckd By PRF <br />