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TABLE OF CONTENTS <br />LIST OF TABLES ...........................................................ix <br />LIST OF FIGURES .......................................................... xi <br />ACRONYMS, ABBREVIATIONS AND UNITS OF MEASURE ................... xiii <br />KEYWORDS ....................................................... ..... xiv <br />EXECUTIVE SUMMARY ................................................ xv <br />MANAGEMENT PLAN ...........................................:........1 <br />INTRODUCTION ............................................................1 <br />Purpose and Need ......................................................... 1 <br />Settin ................... ..............................................3 <br />Status and Current Distribution of Endangered Fish Species ..................... 9 <br />Humpback chub (Gila cypha) ............................................ 12 <br />Bonytail (Gila elegans) .................................................. 14 <br />Colorado pikeminnow (Ptychocheilus lucius) ............................... 15 <br />Razorback sucker(Xyrauchentexanus) ....................................16 <br />DESCRIPTION OF THE PROPOSED ACTION ................................. 18 <br />Historic, Current and Projected Depletions ................................... 18 <br />Colorado Depletions ................................................... 18 <br />Wyoming Depletions ...................................................25 <br />Water Rights Administration .................... ......................... 29 <br />Depletion Accountin~ ..................................................... 30 <br />Framework for Recovery Actions and Cooperative Agreement ................... 31 <br />Provide and Protect Instream Flows ......................................... 32 <br />Background ..........................................................32 <br />Quantification of Augmentation Needs .................................... 36 <br />Formulation of an Augmentation Strategy ................................. 42 <br />Description of Alternatives ..... ....................................... 44 <br />Non-structural alternatives ............................................. 44 <br />Structural alternatives ................................................ 46 <br />Other alternatives considered ........................................... 47 <br />Draft Yampa River Management Plan/Environmental Assessment iv <br />