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<br />. <br /> <br />. <br /> <br />Comparison of Alternatives <br />Mancos Valley Salinity Study <br /> <br /> Alternative Number <br /> Item 1 2 3 4 <br />Acres Irrigated by 34 systems studied 9,167 <br />Acres Under Systems being improved 5,554 1,532 5,467 <br />Acres converted to sprinklers 3,216 3,167 <br />Total Project 2,458,700 1,361,700 6,825,200 <br />Annual Cost 287,500 129,100 661,200 <br />Downstream Benefits 63,500 184,100 471 ,500 <br />On-farm Benefits 295,800 293,100 <br />Total Benef its 359,300 184,100 764,600 <br />Net Benefits 71 ,800 55,000 103,400 <br />Salt Loading Tons/Yr /3.DD!J <br />Reduction in Salt Loading Tons/Yr 1,186 3,441 8,813 <br />Acres of Wetlands Lost 79 18 220 <br /> <br />002296 <br />