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<br />"'" <br />'';) <br />.-4 <br />.-4 <br /> <br />,-, <br />(:~ ALTERNATIVE PROGRAM LEVELS <br /> <br />2 Four alternative program levels were developed to reflect (11 management <br /> <br />3 and system improvements associated with various levels of on-farm water <br /> <br />4 use efficiency, and (2) a range of alternatives for selection of a <br /> <br />5 recommended program. There are several combinations and levels of <br /> <br />6 assistance that could be considered and no one program is completely <br /> <br />7 separable. The alternative program which most likely will be implemented <br /> <br />8 by the farmers is a combination of measures and management practices. <br /> <br />9 Types of measures considered include improving irrigation systems; <br /> <br />10 technical assistance and information to design new systems, field <br /> <br />11 demonstration of how to apply the required irrigation appl ication; <br /> <br />12 research and demonstrat ion of improved systems; and better measurement <br /> <br />13 and control of water. Other factors that affect water use include <br /> <br />14 economic benefits to the farmers, cost sharing, water pricing and a <br /> <br />15 will ingness on the farmers' part to improve irrigation management. <br /> <br />16 The following analysis is based on a 7 percent sample of 4,620 irrigated <br /> <br />17 acres on the lower end of the Government Highline canal extrapolated <br /> <br />18 for present and future conditions to the 64,700 acres in the valley. <br /> <br />19 Alternative 1 - (Management of time of set) The first level of analysis <br /> <br />20 considered changing only the time of set where necessary to achieve the <br /> <br />21 desired net application. Physical improvements consist of land leveling <br /> <br />22 about 2,100 acres where the estimated yardage exceeds 800 cu.yds/ac.; <br /> <br />23 ditch lining or pipelines for all the field supply and head ditches with <br /> <br />36 <br />