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<br />...1 ~ fl' 'JIo. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />r.U02'::; <br /> <br />farm efficiency to 75 percent would be on the order of $30 per acre per <br /> <br />year because significant capital investments and operation costs would <br /> <br /> <br />be required. <br /> <br />5, The improvement of river reach water-use efficiency in the study <br /> <br /> <br />area can be done only by increasing beneficial use of water through a <br /> <br /> <br />raduction in (1) outflow at the lower end of the reach and/or (2) the <br /> <br /> <br />amount of water being nonbeneficial1y used in the reach. The computer <br /> <br /> <br />modeling runs will address the first item by determining how return flows, <br /> <br /> <br />water availability and stream outflow may be modified by changes in farm <br /> <br /> <br />and canal system efficiencies and in use of the ground-water reservoir. <br /> <br />-57- <br />