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Factors That May Decrease Availability of Water Supplies - Statewide <br />Increases in M&I and Self - Supplied Industrial CUs <br />Evaporation from new or enlarged reservoirs <br />Increased reuse of existing consumable return flows <br />New or increased transbasin diversions out of the basin <br />Increase in agricultural CU <br />Increase in irrigated lands <br />Development of additional supplies to reduce or eliminate agricu ltural shortages <br />Changes in irrigation efficiency such as conversion to sprinkler s <br />Changes to higher CU crops <br />Diversion by downstream agricultural users of increases in M&I r eturn flows <br />Development of irrigated lands resulting in a net increase in CU (increased depletions per acre) <br />Additional flow requirements for species protection (e.g., endan gered species) <br />RICDs and instream flow water rights filings (decrease in legal avail ability above the water right) <br />Increase in coverage of phreatophytes or change in type of phrea tophytes <br />Additional bypass flow requirements for existing projects <br />Increase in coverage of phreatophytes or change in type of phrea tophytes <br />Hydrologic variability (e.g., climate change resulting in reduce d runoff or extended droughts) <br />51 <br />Factors Affecting Supply Availability <br />Gunnison <br />• Colorado Compact limitations and development of senior <br />conditional water rights <br />• Aspinall Operations <br />• Aspinall Subordination <br />• Aspinall Contracts <br />• Endangered Species <br />• Black Canyon Settlement <br />• CWCB Instream Flows <br />• Recreational In Channel Diversions <br />• Downstream irrigation and power demands <br />52 <br />26 <br />