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<br />....:..,-.)..;
<br />
<br />TABLE OF CONTENTS
<br />
<br />INTRODUCTION ..,..
<br />
<br />,.... 6
<br />
<br />SECTION L THE ADMINISTRATIVE PROCESS..,...., ,........,' ,7
<br />A, PROCEDURAL HISTORy................,..............,....,..,.. ,.., 7
<br />8, SUJ'vIMARY OF PERTINENT PROVISIONS OF 43 CF.R PART 417.., ,9
<br />C. SUMMAR Y OF PROCEEDINGS UNDERLYING THE REGIONAL
<br />DIRECTOR'S RECOMMENDATIONS AND DETER1'vllNATIONS ..,.. ...... ID
<br />
<br />SECTION II: TECHNICAL ANALYSIS OF FACTORS ..........,.. ..,13
<br />FACTOR 1. LOCATION ,.....,..................,....., ............ ,,14
<br />FACTOR 2, CLlMATlCCONDITIONS,..,........................ ,,15
<br />FACTOR 3, LAND CLASSIFICATION ..............., ,,16
<br />FACTOR 4, AREA TO BE IRRIGATED........,..,......,....,........ 18
<br />FACTORS 5, & 6, KINDS OF CROPS RAISED I CROPPING PRACTICES ,...'.. 19
<br />FACTOR 7, TYPES OF IRRIGATION SYSTEMS IN USE..........,...................., 2D
<br />FACTOR 8, METHODS OF IRRIGATION OF THE WATER USERS ............,.. 21
<br />FACTOR 9, RECORD OF WATER ORDERS ....,........,......,..,..,.....................,.. 23
<br />FACTOR 10, GENERAL OPERATING PRACTICES ..,........................,............ 25
<br />FACTOR I I, CONDITION OF WATER CARRIAGE AND DISTRIBUTION
<br />
<br />SySTEMS""".. .,........,......,.......,..,...........,..........,.......,....,......"..,...............,..,.,.... 29
<br />FACTOR 12, OPERATING EFFICIENCIES ,....,.......' ..,..,.......,.., ......,. ' ..... 31
<br />Introduction and Backgroul1d....,...............................,....,.,..............,......,..,..,....".... 3 I
<br />Efficiency Over Time,...............,...............,..........",....,..,......,...,....,.....,.. ,.... 32
<br />Teclmical Considerations .,...........,......,...........,., ,..,......,....,..,.............., ....,..,., 34
<br />
<br />~ET"",,",.,"""""""""""""""""""'""""""""~
<br />Leaching.,............,...,.... ,......,...................""..... "............,..,...." ....,'...... '..,..., 36
<br />Tailwater ...... ..............,...... .....,................,..,..,..... ,.....' 39
<br />FACTOR 13, RETURN FLOWS TO THE RIVER, ......,.........., 42
<br />FACTOR 14, MUNICIPAL WATER REQUIREMENTS ......,..... ..,..,......., .. 43
<br />FACTOR 15, REJECTION OF ORDERED WATER.,........" 44
<br />FACTOR 16, PERTINENT PROVISIONS OF THE BOULDER CANYON
<br />CONTRACT...., ,..................................... ..............,........,...... ,,45
<br />ADDITIONAL RELEVANT FACTORS ....,....,....,......,.................,... ....,...., 46
<br />
<br />SECTION Ill. PART 417 DETERMINATION OF ESTIMATED WATER
<br />REQUIREMENTS FOR IlD FOR 2003 DETERMINATION .............,........,........... 47
<br />
<br />SECTION IV, RECOMMENDATIONS RELATING TO CONSERVATION
<br />MEASURES AND OPERATING PRACTICES ......,... ..,50
<br />
<br />July 2, 2003
<br />
<br />2
<br />
<br />Detennil1ations and Recommel1datiolli
<br />For lID - Calendar Year 2003
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