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<br />3rn.55~ <br /> <br />Contents <br /> <br />Iv <br /> <br />3.1.1 General Impacts to the Region .................................................................3-3 <br /> <br />3.2 Streamflow.. ... ... .... ... ..... ...... ....... ............ ......... ... .................................................. 3-3 <br />3.2.1 Derivation of Streamflows .......................................................................3-3 <br />3.2.2 Impact of Alternatives ..............................................................................3-4 <br /> <br />3.3 Irrigation Systems.........................................................................,..................... 3-10 <br />3.3.1 Existing Conditions ..... ............ ............................................................... 3-1 0 <br />3.3,2 Impacts of Alternatives.,.... ............................... ..................................".. 3-12 <br />3.3.2.1 Alternative A (No Action)....................................................3-12 <br />3.3.2.2 Development Alternatives ....................................................3-12 <br /> <br />3.4 River Morphology... ,...,.. ........... ,..................... ............ ,...................................... 3-12 <br />3.4.1 Existing Conditions. .............. ........... ...................................................... 3-13 <br />3.4.1,1 Gunnison River ....................................................................3-13 <br />3.4.1.2 Uncompahgre River .............................................................3-13 <br />3.4.2 Impacts of Alternatives - Gunnison River .............................................3-14 <br />3.4.2.1 Alternative A (No Action)....................................................3-14 <br />3.4.2.2 Development Alternatives ...... .............. ......... ...... ......... ........ 3-14 <br />3.4.3 Impacts of Alternatives - Uncompahgre River ......................................3-15 <br />3.4.3.1 Alternative A (No Action)....................................................3-15 <br />3.4.3.2 Development Alternatives ....................................................3-15 <br />Method of Analysis ..............................................................3-15 <br />Impacts of Development Alternatives ..................................3-17 <br /> <br />3.5 Water Temperature.. .... .... ,.. ..... ..... ... .......... .......... .......... ......................,.............. 3-22 <br />3.5.1 Existing Conditions. ............. ............. ..................... ...........:... ........ ......... 3-22 <br />3.5.1.1 Gunnison River ....................................................................3-22 <br />3.5.1.2 Uncompahgre River .............................................................3-22 <br />3.5.2 Impacts of Alternatives - Gunnison River .............................................3-22 <br />3.5.2.1 Alternative A (No Action)....................................................3-22 <br />3.5.2.2 Development Alternatives ..... ....................,.......................... 3-23 <br />3.5.3 Impacts of Alternatives - Uncompahgre River ......................................3-23 <br />3.5.3.1 Alternative A (No Action)....................................................3-23 <br />3,5.3.2 Development Alternatives ..................................................,.3-23 <br /> <br />3.6 Water Quality .....................................................................................................3-23 <br />3.6.1 Existing Condi tions .......... ............ ...... ..... ............................................... 3-23 <br />3.6.1.1 Gunnison River ....................................................................3-23 <br />3.6.1.2 Uncompahgre River .............................................................3-24 <br />3,6.2 Impacts of Alternatives ..........................................................................3-24 <br />3.6.2.1 Alternative A (No Action)....................................................3-24 <br />3.6.2.2 Gunnison River ...........,..........................................,........,....3-24 <br />3.6,2.3 Uncompahgre River ........,....................................................3-25 <br />3.6.3 Potential Effects Due to Selenium..........................................................3-26 <br /> <br />3.7 Fisheries ................,.......................,..,..............,............. ..................................... 3-28 <br />3.7.1 Existing Conditions .................... ...,.......,...................,............................3-28 <br />3.7.1.1 Gunnison River ....................................................................3-28 <br />3.7.1.2 Uncompahgre River .............................................................3-29 <br />3.7.1.3 South Canal ..........................................................................3-30 <br /> <br />AB Lateral Hydropower Project <br /> <br />July 2000 <br /> <br />.. - 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