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Table I-3-1. Average Water Consumption for the C< >errado River 1976-1985 <br />MAJOR UPPER BASIN LOWER BASIN TOTAL <br />ACTIVITY ACRE-FEET ACRE-FEET ACRE-FEET <br /> ( scent) ( [cent) ( rant) <br />Irrigation 2,146,530 5,140,430 7,286,960 <br /> (56.2) (44.83) (47.68) <br />Transbasin 697,680 4,150,780 4,848,460 <br />Exports (18.27) (36.20) (31.72) <br />Reservoir 784,690 1,467,590 2,252,280 <br />Evaporation (20.55) (12.8) (14.73) <br />Municipal 190,080 706,340 896,420 <br />Industrial (4.98) (6.16) (5.86) <br />Totals 3,818,980 11,465,140 15,284,120 <br /> (24.98) (75.02) (100) <br />Source: U.S. Bureau of Reclamation Consumptive Uses and Losses Report. <br />C. Linking the Biological Dimensions to the Economics <br />An essential feature of the analysis presented in this report is the linking of the biological and <br />physical requirements of the river system to the economic impacts that result from the <br />protection and recovery of the endangered fishes. The changes in the activities affecting the <br />Colorado River that are needed to recover the fishes must first be expressed in biological and <br />physical terms and then ultimately translated into economic terms. The. with fish and without <br />fish scenarios begin with the premise that the changes in the physical nature of the river and <br />the changes in the economic activities in .the area of the river have led to the present <br />circumstance of the endangered fishes. These with fish and without fish scenarios must be <br />constructed taking into account the fact that recovery of the species will involve a significant <br />period of time. <br />A complete analysis of the potential impacts of actions taken on behalf of the endangered <br />fishes requires comparing the time path of the economy in the without fish scenario and that <br />I-13 <br />