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<br />00 <br />L'":l <br />00 <br />e-.. <br /> <br />i~t& <br />,"'", <br /> <br />TABLE OF CONTENTS <br /> <br />1. <br /> <br />Page <br />PURPOSE AND NEED FOR THE ACTION---------------------------- 1 <br /> <br />A. Background-------------------------------------------- 1 <br />B. Geographic Setting------------------------------------ 2 <br />C. Purpose----------------------------------------------- 3 <br />D. Need-------------------------------------------------- 3 <br /> <br />1. Regulatory Storage------------------------------- 3 <br />2. Flood Contro1------------------------------------ 4 <br />3. Dam Safety--------------------------------------- 4 <br /> <br />II. ALTERNATIVES INCLUDING THE PROPOSED ACTION----------------- 5 <br /> <br />A. Alternatives Eliminated from Further Study------------ 5 <br /> <br />1. Stage I A1ternatives----------------------------- 5 <br />2. Stage II Alternatives---------------------------- 5 <br />3. Stage III Alternatives--------------------------- 11 <br /> <br />B. Alternatives Analyzed in Detail----------------------- 12 <br /> <br />Major Project-Related Activities----------------- 13 <br />Plan 8: No CAWCS Action------------------------ 16 <br />Plan 1: Cliff + Roosevelt + Stewart Mountain <br />Dams----------------------------------- 18 <br />Plan 2: Cliff + Roosevelt + Stewart Mountain <br />Dams + Nonstructural Measures---------- 30 <br />Plan 3: Confluence + Cliff + Roosevelt <br />+ Stewart Mountain Dams---------------- 34 <br />Plan 6: (Agency-Proposed Action): New Waddell <br />+ Cliff + Roosevelt + Stewart Mountain <br />Dams----------------------------------- 39 <br />Plan 7: New Waddell + Cliff + Roosevelt + <br />Stewart Mountain Dams <br />(environmental enhancement)------------ 44 <br /> <br /> 1. <br />" 2. <br /> 3. <br /> 4. <br /> 5. <br /> 6. <br /> 7. <br /> <br />C. Comparative Analysis of Alternatives------------------ 44 <br />D. The Proposed Action - Plan 6-------------------------- 47 <br /> <br />III. AFFECTED ENVIRONMENT--------------------------------------- 49 <br /> <br />A. Determination of Significant Resources---------------- 49 <br />B. General Description of Area Resources----------------- 50 <br /> <br />1. Significant Resources---------------------------- 50 <br />2. Other Resources---------------------------------- 67 <br /> <br />C. Description of Affected Site Areas-------------------- 71 <br /> <br />1. New/Modified Stewart Mountain Site Area---------- 71 <br /> <br />i <br />