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ml <br />Reservoir <br />_ construction stored <br />water and produced <br />power but also <br />changed river <br />conditions. Rather than turbulent spring <br />floods followed by low summer and winter <br />flows, reservoirs now store and conserve <br />water for release throughout the year. Clear, <br />cool water and consistent flows below dams <br />create some of the nation's best trout <br />Fly fisher downstream of Glen Canyon Dam - by Terry Gunn, courtesy of the fisheries. But these non - native sport fish <br />Bureau of native fish like the Colorado pike <br />minnow, razorback sucker, humpback chub and bonytail chub, which are now listed under the <br />Endangered Species Act (ESA). <br />Federal environmental laws like the ESA, the Clean Water Act and the National <br />Environmental Policy Act (NEPA) present significant challenges to the generation of <br />hydropower resources in the CRSP. Some cite these laws as justification to operate reservoirs <br />to mimic pre -dam conditions. This undermines the purposes for which the reservoirs were <br />constructed. For example, reservoir releases to mimic pre -dam floods, or move sediment, often <br />bypass power turbines and waste the opportunity to produce hydropower. <br />CRSP Generation Before Glen Canyon ROD and <br />Flaming Gorge BO <br />1,600 <br />1,200 <br />800 <br />400 <br />0 <br />1,600 <br />1,200 <br />800 <br />400 <br />0 <br />■ Aspi nail <br />■ Flaming Gorge <br />❑ Glen Canyon <br />Load <br />Sun Mon Tue Wed Thu Fri Sat <br />Day of Week Courtesy of Western Area Power Association <br />�an <br />H <br />