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Table 1 <br /> Evaporative Depletions from the Delta Paving Gravel Pits <br /> East of Delta, Colorado <br /> Elevation 4970 ft. <br /> AML <br /> Jan Feb Mar Apr May Jun July Aug Sept Oct Nov Dec TOTAL <br />1 Total Surface Area of Pit (acres) 60.0 <br />2 Annual Evaporation (in) 50.0 <br />3 Monthly Distribution (%) 0.03 0.04 0.06 0.09 0.12 0.15 0.15 0.14 0.10 0.07 0.04 0.03 1.00 <br />4 Monthly Gross Evaporation (in) 1.50 1.75 2.75 4.50 6.00 7.25 7.50 6.75 5.00 3.50 2.00 1.50 50.00 <br />5 Monthly Effective Precipitation (in) 0.36 0.34 0.50 0.40 0.53 0.44 0.53 0.65 0.77 0.81 0.52 0.41 6.25 <br />7 Monthly Net Evaporation (in) 1.14 1.41 2.25 4.10 5.47 6.81 6.97 6.10 4.23 2.69 1.48 1.09 43.75 <br />8 Net Evaporation of Gravel Pit (AF) 5.72 7.07 11.27 20.51 27.34 34.05 34.84 30.50 21.15 13.44 7.41 5.47 218.75 <br /> Evaporation September through April 5.72 7.07 11.27 20.51 0.00 0.00 0.00 0.00 21.15 13.44 7.41 5.47 92.03 <br /> IMF& <br />1 Taken from estimated surface area at build-out <br />2 Taken from NOAA Technical Report 33 <br />3 Taken from General Criteria for Substitute Water Supply Plan, State Engineer's Office, February, 1996. <br />4 Calculated evaporation: monthly distribution X annual evaporation <br />5 Taken from NOAA , Climatology of the United States No. 81, 1961-1990, Delta Station multiplied by a factor of 0.7 <br />6 Evaporation minus Precipitation <br />7 Pit surface area X monthly net evaporation / 12