Laserfiche WebLink
a Field irrigation efficiency = 60%. <br /> 0 Irrigated acreage = 12.5 acres out of 61.5 total acres. <br /> • Net crop consumptive use requirement = 139 ac-ft/ac. <br /> • No credit for soil moisture build-up from prior irrigation. <br /> The analysis, which is summarized in Table B-3, indicated an average annual <br /> consumptive use of irrigation water of about 17.1 acre-feet on the 12.5 acres which have been <br /> `driefl up• _ — — -- <br /> Temporary Substitute Stirppy Plan <br /> During 1990 and 1991, the stream depletions resulting from evaporation losses from <br /> the exposed water surface at the Challenger Pit is estimated to be about 11.4 acre-feet per <br /> year. WMI seeks to operate a temporary substitute supply plan using the 20 shares of the <br /> IRU and Brush water right. These shares will be dedicated to the Big Thompson River for <br /> the duration of the temporary plan and the historic consumptive use credits attributable to <br /> the water right will be used to offset or replace the net stream depletion caused by <br /> kevaporation at the pit. Table B-4 is a summary of the monthly depletion for the projected <br /> operation of the Challenger Pit, together with the monthly consumptive use credits which <br /> derive from the Hill and Brush water right available to WAG and discussed above. From <br /> Table B-4, it can be seen that the consumptive use credits (17.1 acre feet/year) exceed the <br /> replacement requirement (11.4 acre-feet/year). It is concluded that operation of the <br /> temporary plan as described herein is sufficient to prevent injury to other water users. <br /> 4 <br />