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- 21 - G, ,,~ ,C ,~ 1 . U..:.. _:_ ~J oj Results of System Analysis Alternative #1 - Irrigation Water Management was found to be economically feasible in all of the systems studied. Alternative #2 - Canal Company Alternative was found to be economically feasible in the Larimer County, Brighton, Bijou and North Sterling systems. This alternative was also economically feasible in the Highland systems; however, Alternative #2M - Canal Company Alternative Modified produced higher net benefits. Alternative #4 Onfarm Structure Needs was found to be economically feasible in the Clover Basin and Farmers Pawnee systems. Table E summarizes the system improvements found to be economically feasible and compares this with the system improvements believed to be needed, shown on Table A. Table E Economically Feasible Improvements and Remaining Needs for 23 Sample Irrigation Systems 1/ Missouri River Basin, Colorado Ident ifi ed Feasible Remaining Item Unit Need Improvements Needs Canal Reservoi r Imp. No. 6 2 4 Li ni n g Miles 109 26.6 82.4 Pipeline Miles 10 0 10 Diversion Str. No. 10 2 8 Water Cont ro 1 Str. No. 1,002 13 989 Onfarm Ditch Li ni ng Mil es 310 122 188 Pipeline Mil es 169 63 106 Water Cont. Str. No. 1,275 607 668 Land Level i ng Ac. 17,550 8,200 9,350 Irr. Water Mgt. 11 Ac. 264,199 264,199 0 Convert Irr. Methog]l Ac. 13,500 8,400 5,100 Cons. Crop System 1/ Ac. 6,500 3,000 3,500 1/ 11 ]I 1/ Sample of 25 percent of predominantly surface water supplied systems. This is a non-structural practice involving improvements such as: irrigation scheduling, time of irrigation set, optimum stream size, tailwater management. Change from surface systems to sprinkler systems. Non-Structural practices of management of crop residue.