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<br />~'. <br /> <br />TABLE 4-4 <br /> <br />PRESENT CONDITION VS. FUTURE WITH PROJECT <br /> <br />Colorado River Basin Salinity Control Project <br />Bip; Sandy River Unit - Wyominp; <br /> Present <br /> (1986) Future With Project Difference <br />Water-Righted Acres 18,370 18,370 Y 0 <br />Irrigated Acres 15,700 15,700 Y 0 <br />Conveyance Efficiency Percent 82 72 2/ -10 2/ <br />Onfarm Efficiency Percent 39 68 +29 <br />Annual Salt Load (Tons/Year) 157,570 104,670 -52,900 <br />Salt Load From Irrigation (Tons/Year) 142,250 89,350 -52,900 <br /> <br />'''',' <br />[,. <br /> <br />!~ <br /> <br />'1.'"", <br />l' '. <br /> <br />r-c; <br /> <br />. f ~ <br /> <br />1/ There are 18,370 water-righted acres in the project area that receive water sometime <br />during any S-year period. But, due to limited water supply and with present <br />irrigation efficiencies, only 15,700 acres receive water anyone year. It is assumed <br />that approximately 85 percent of the 18,370 water-righted acres will have salinity <br />plans at the end of the installation period. <br /> <br />i.-.:- <br /> <br />~, <br />, . <br />;, <br /> <br />2/ Assuming canals and laterals to continued seepage loss at an average of 10,200 ac-ft/yr. <br />Reducing onfarm diversion requirement will result in a higher percentage of the total <br />amount of water required being lost in the conveyance system. <br /> <br />r:;~ <br /> <br />sprinkler irrigation thus provides a longer growing season and often a second <br />cutting of hay is obtained annually. In addition to the increased <br />yields, irrigators are able to grow pure stands of alfalfa and other <br />high-value crops. <br /> <br />i:",' <br /> <br />Installation of planned measures increases the average annual agricultural <br />net benefits from $159 per acre to $243 per acre. This results in an <br />$84-per-acre or $1,318,800 annual net benefit to the landowners of the <br />15,700 acres. <br /> <br />, <br />.' <br /> <br />The publication, "Cost of Producing Crops in the Eden-Farson Area of <br />Wyoming," was used extensively during the planning of this project. One <br />must realize that landowners have their own set of financial circumstances <br />and must consider them prior to committing to a salinity control contract. <br />The SCS and the CES will provide economic and informational technical <br />assistance to individual landowners requesting help regarding their <br />participation in the program. The landowner is under no obligation to <br />participate in the salinity project. <br /> <br />(-~ <br />?'\ <br />i-;, <br />~-- .' <br /> <br />p~- <br /> <br />,. <br /> <br />4-7 <br /> <br />l~v'115J <br />