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<br />"':l <br /> <br />~ <br />c '~) <br />r-) <br />00 <br /> <br />Municipal and Industrial (M&I) Demand - it was assumed in the hydrologic <br />computer modeling of the basin that the City of Gunnison would develop <br />existing conditional water rights in the future. Based on that <br />assumption and the currently available supply in Ridgway Reservoir, no <br />M&I water shortages were identified in the study area. <br /> <br />Agricultural Demands - the same model noted above identified irrigation <br />shortages in eight sub-basins within the study area. <br /> <br />Streamflow - instream flow demand was defined as the decreed CWCB <br />instream flow rights in the study area. The hydrologic model results <br />indicate relatively frequent deficiencies on lower Ohio Creek, lower <br />Tomichi Creek and on Cochetopa Creek upstream of Los Pinos Creek. <br />Deficiencies were noted on many other streams but they were either <br />infrequent or were ofa smaller magnitude. <br /> <br />IDENTIFICATION AND SCREENING OF PLAN COMPONENTS <br /> <br />Both structural and non-structural components were considered as a means <br />of satisfying future consumptive use water demands. Recreation-related <br />components were also considered as a means of meeting the project objective of <br />enhancing the local economy. Individual components that were determined to be <br />most attractive were used to formulate alternative plans. <br /> <br />A number of water management and conservation measures were evaluated as <br />potent i a 1 non-structural means of sat i sfyi ng future water demands . Although <br />it may appear that agricultural demands can be reduced through .more efficient <br />irrigation practices, most of the water that appears to be diverted <br />unnecessarily actually returns to the stream within one month and is available <br />for other uses. It was also determined. that such non-structural measures were <br />generally not practical in the agricultural sector. because of economic or <br />legal considerations. The M&I sector in the study area presently accounts for <br />I ess than 1. 5 percent of the tot a 1 consumpt ive use in the study area. Any <br />savings achieved through conservation and/or improved management of M&I water <br />supplies would therefore have practically no impact on reducing the overall <br /> <br />S-2 <br />