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<br />---, <br /> <br />. TABLE OF CONTENTS <br /> <br />LIST OF TABLES ........................................................... ix <br /> <br />LIST OF FIGURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi <br /> <br />ACRONYMS, ABBREVIATIONS AND UNITS OF MEASURE ................... xiii <br /> <br />KEYWORDS ......:....................................................... xiv <br /> <br />EXECUTIVE SUMMARy........... .................. .................. xv <br />MANAGEMENT PLAN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> <br />INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 <br /> <br />Puruose and Need ...........................................:............. 1 <br /> <br />Settin~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 <br /> <br />Status and Current Distribution of Endanl!ered Fish Suecies ..................... 9 <br />Humpback chub (Gila cypha) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . 12 <br />Bony tail (Gila elegans) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . . . . . . . , . . . . . . 14 <br />Colorado pikeminnow (Ptychocheilus lucius) .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 <br />Razorback sucker (Xyrauchen texanus) . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . 16 <br />DESCRIPTION OF THE PROPOSED ACTION ........ ;'. . . . . . . . . . . . . . . . . . . . . . . . 18 <br /> <br />Historic. Current and Proiected Deuletions .................................., 18 <br /> <br /> <br />Colorado Depletions. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 <br /> <br />Wyoming Depletions ................................................... 25 <br /> <br />Water Ril!hts Administration ............... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 <br /> <br />Denletion Accountinl! . . . . . .. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 <br /> <br />Framework for Recovery Actions and Coonerative Al!reement . . . . . . . . . . . . . .. . . . . 31 <br /> <br />Provide and Protect Instream Flows ......................................... 32 <br /> <br />Background .......................................................... 32 <br /> <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 /> <br />I' <br />I <br /> <br />Draft Yampa River Management PlanJEnvironmental Assessment <br /> <br />IV <br />