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<br />'-2. Effects of the Project in the Platte River System <br /> <br />Several studies of the hydrology of the Platte River in Nebraska have <br />0057 . <br />been conducted. In some cases, the development and impacts of the <br /> <br />_. <br /> <br />Narrows Unit were considered. In particular a study by the Geological <br /> <br />Survey in 1975 entitled "Review of Hydrologic Data and Interpretations, <br /> <br />Nebraska Mid-State Diversion, Pick-Sloan Missouri Basin Program" <br /> <br />included the impact of the Narrows Unit. <br /> <br />- <br /> <br />On page 7 of the Water Projects Review Report, it is stated: <br /> <br />:--- <br /> <br />"Particularly critic;1l are high spring flows which flood wet meadow <br /> <br />areas along the river which, in turn, produce high quality plant and <br /> <br />animal (invertebrate) food for foraging birds." The above-referenced <br /> <br />~- <br /> <br />Geological Survey report presented a rather thorough analysis of the <br /> <br />impact of the Narrows Unit and concluded .that there would be no <br /> <br />,..-.. <br />f. <br />,. <br />,. <br /> <br />significant impact on the wet meadow complex due to the Narrows Unit. <br /> <br />, <br />, <br />,. <br /> <br />In this regard, .there would be similarly no significant impact on . <br /> <br />L <br /> <br />waterfowl or wading birds. <br /> <br />The Geological Survey evaluated the significance of the hydrologic <br /> <br />r- <br />I. <br />r-.: . <br />, . <br />,. . <br /> <br />regime with respect to the maintenance of the channel morphometry. <br /> <br />~ . <br /> <br />Their conclusion was that reductious in winter flows would not <br /> <br />significantly impact the river, since the stag~ is relatively independent <br /> <br /> <br />of discharge due to the effects of ice jams. The Geological Survey <br /> <br />t <br />. <br />,. <br />\ <br /> <br />study was predicated upon the future depletion of 320,000 acre-feet <br /> <br />~ <br />j <br /> <br />4 <br /> <br />L- <br /> <br />r <br />I. <br /> <br />, <br /> <br />,-'I' <br />