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1 <br /> ' The combined shrinkage in the system from the point of storage <br /> to the point of delivery is consequently estimated as 250. <br /> The consumptive use of irrigation water by corn,which is <br /> ' the crop that has historically been irrigated on the subject <br /> parcel , may be estimated by the modified Blaney and Criddle <br /> ' procedure utilizing the assumption of three-inch average <br /> depth of irrigation-water application, and climatological <br /> conditions for the Greeley Weather Station as provided by <br /> the National Oceanic and Atmospheric Administration. The <br /> results obtained by this procedure are summarized on Table <br /> ( 2. <br /> Utilizing the same analytical procedure, but incorporating <br /> temperature and precipitation data representing the 30-year <br /> average for the Greeley Weather Station, the estimated water <br /> f� use for non-irrigated native grasses may be computed as 8.90 <br /> inches . Total annual evaporation loss from exposed water <br /> ( t surfaces is obtained from Geological Survey Professional Paper <br /> I' E 272-D, "Evaporation from the 17 Western States" and for the <br /> Greeley vicinity is apparently 41 .66 inches per year. Evaporation <br /> Lloss from miscellaneous surfaces such as roads , buildings , <br /> corrals , pit areas , driveways , etc. is estimated as 2 .0 inches <br /> per year. Rates of gross depletion from exposed surfaces are <br /> summarized in Table 3 , in which table the rate of moisture loss <br /> (' from irrigated land is increased by 51, over the consumptive use <br /> l of the irrigated crop in order to account for soil-moisture <br /> ( evaporation during the non-irrigation season. <br /> I_. Average annual rainfall in the vicinity is 12 .2 inches <br /> per year, which when added to the imported irrigation water <br /> [' represents the total annual water supply available for use <br /> ' within the 861�-acre parcel . The water budget for the entire <br /> area is summarized on Table 3 , where it may be observed that <br /> J <br /> the average annual depletion of the water supplies available <br /> to the 86z-acre parcel is approximately 107 .5 acre feet per <br /> � - year. <br /> L' 1 <br /> LI -12- <br />