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<br />-v. <br />\",...(. <br />In <br /> <br />;P~. <br /> <br />o <br /> <br />SAN MIGUEL WATER SUPPLY STUDY~ A CASE STUDY IN __C__..:c. ::c _ ___ _ <br />NON-STRUCTURAL ALTERNATIVES FOR IMPROVED <br />IRRIGATION WATER SUPPLIES <br /> <br />by <br /> <br />Jerry F. Kenny 1), William E. Green2), & Daniel W. BOYd3) <br /> <br />ABSTRACT <br /> <br />The San Miguel study area is located in southwestern Colorado seventy miles south of Grand <br />Junction. . Irrigated agriculture has been practiced in the study area since the late 1800's. <br />Investigations of alternatives for developing additional water supplies in the study area were <br />undertaken by the U.S. Bureau of Reclamation (USBR) beginning in the 1950's and were <br />completed in 1982. Most alternatives involved mainstem reservoirs, none of which were found <br />to be economically feasible. <br /> <br />Subsequent investigations undertaken by the Colorado Water Conservation Board (CWCB) <br />have concentrated on smaller, less expensive project configurations which do not involve <br />mainstem reservoirs. Alternatives which utilize existing sources of water with improvements <br />and expansions of existing facilities are the preferred option. Conservation, improved water <br />management techniques, modifications to system operations, and other non-structural <br />measures appear to be viable options for significantly improving the reliable yield of the existing <br />systems prior to making any structural modifications. <br /> <br />1) Senior Engineer, Boyle Engineering Corporation <br />2) Senior Water Resources Engineer, Colorado Water Conservation Board <br />3) Managing Engineer, Boyle Engineering Corporation <br /> <br />Draft of poster paper to be presented at ASCE National Conference on Irrigation and Drainage, <br />Durango, CO, July 1990. <br /> <br />~ <br />