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<br />Contents <br /> <br />New population of humpback chub ' <br />Further study of selective withdrawal <br />Emergency exception criteria <br />Mitigation ,.,.,. <br />Power adjustments ' , <br />Permits and regulatory approvals <br />Alternatives considered and eliminated from detailed study <br />Run-of-the-River Alternative <br />Evaluation of alternative <br />Conclusions . . . . <br />Historic Pattern Alternative <br />Evaluation of alternative <br />Conclusions , . , . <br />Reregulated Flow Alternative <br />Evaluation of alternative <br />Conclusions <br />Eliminated concepts <br />Sand pumping <br />Beach protection . <br />Remove Glen Canyon Dam <br />Move hydropower peaking from Glen Canyon Dam to Hoover Dam <br />Summary comparison of alternatives <br />Resource Management Objectives <br /> <br />Page <br />38 <br />38 <br />39 <br />39 <br />39 <br />40 <br />40 <br />40 <br />41 <br />42 <br />43 <br />44 <br />44 <br />44 <br />45 <br />47 <br />48 <br />48 <br />48 <br />49 <br />49 <br />50 <br />50 <br /> <br />Chapter III Affected environment <br />Setting . . . , <br />Immediate area <br />Colorado River region <br />Geology . , . . , <br />Climate . , . ' <br />Colorado River system resource linkages <br />Water volume and pattern of release ' <br />Sediment transport and its effect on other resources <br />Flows, sediment, and downstream resources <br />Aquatic resources <br />Terrestrial resources <br />Summary <br />Water <br />Streamflows <br />Predam streamflows <br />Postdam streamflows <br />Downstream transformation of fluctuating releases <br />Travel time of water <br />Tributary flows <br />Floodflows and other spills <br />Reservoir storage <br />Water allocation deliveries <br />Upper Basin yield determination <br /> <br />63 <br />63 <br />63 <br />64 <br />64 <br />65 <br />65 <br />66 <br />68 <br />68 <br />68 <br />70 <br />71 <br />71 <br />72 <br />72 <br />73 <br />75 <br />77 <br />77 <br />77 <br />78 <br />79 <br />79 <br /> <br />iv <br />