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<br />Table of Contents
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<br />EXECUTIVE SUMMARY ..............................................................................................................:...............E.l
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<br />BACKGROUND ,.,.."........,.,...,.....,..............""...,........".'...."..."....,....,.,.."",....,..........,...,....",...........""",..."..."., E-I
<br />STUDY PURPOSE AND OBJECTIVES ..... ",... .,..... .... ,.,....... .." .,..".... ........,. .,...., ..", ,.. ......,... ,..:,.,., ,..,..", ......, .",.. ...... E-I
<br />SUMMARY OF AGENCY WORKSHOPS,."..".....,.....,.....,.....,...........".,.,...,.....,..,........"......,........"..,..,..,........."..",. E-I
<br />FLOW ANALYSIS OF THE DUCHESNE RIVER ............,.......',.....,.......".,.,..""...,...........,...'......"............"",..""....... E-I
<br />REVIEW OF USBR PRE-DEVEWPMENT FLows.....,........"...............".....""....,..,..,....,...,.....................,.,..,.,......., E-2
<br />FLow ANALYSIS OF 1HE DUCHESNE RIVER WITH FuLL BONNEVILLE UNIT OPERATION ...................................,. E-3
<br />FLow ANALYSIS OF 1HE DUCHESNE RIVER WITH UINTAH BASIN REPLACEMENT PROJECT
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<br />PROPOSED OPERATION ........,............... .,........ ............ " ,......... .',. ". '..... .., ..........., ........., ........ ......, ..... ,......"" .., ..., E- 3
<br />USFWS FLOEW RECOMMENDATIONS .".....,..,..',.......,..................,...'.'......,.."....,.........,..,...,............"'.".,,........., E-3
<br />COMPARISON OF HISTORIC RANDLETIFLOWS TO USFWS RECOMMENDED FLows ...............,.....,....,.....,....,..... E-5
<br />DETERMINA nON OF POTENTIAL SOURCES OF WATER ...."......,." .,.. ".., ,..........., ".. ,....., ,. ,..., ...""...,., ............., ,..... E-6
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<br />STUDY RESULTS AND CONCLUSIONS " ,...., ............... ".. ,..... ,.. ..,... .... ,......., ,..........,.." ,...., "...... ...,... ......., ,...'" ........ E-6
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<br />CHAPTER I-INTRODUCTION .................................................................................................................. 1.1
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<br />BACKGROUND ,..,........,........,.".......",.........",.......,....,...,.............".....,...,.",...""..,..,...,.........",....,.,.........".'....." I-I
<br />STUDY DESCRIPTION."".., ..,........ ,..,... ",.".., .., ..,.. ,... ,............" ..., .,...,..." .............." ,. ,..." ". ..... ......, ..... .......", ......., I-I
<br />DUCHESNE RIVER BASIN DESCRIPTION "".',.....,......"..'"......"...,......".,.,'......'.......,.,.......,...,............"'""""..,,,... 1-2
<br />STUDY PURPOSE AND OBJECTIVES .., ,. ,............ ".....,.."" "...........,..,...,... ..,. ,." ,.........", ,..."." ....... ,.. ,. ..,'.." .......,.' ,. 1-2
<br />REVIEW OP PREVIOUS WORK ..,..."..:.....",.......",.......""..."........,...,.."...."",..",.......""...,."..".."..,......."..,.,.....,. 1-4
<br />ACKNOWLEDGMENTS .,.."..",........,..".,..", ,'..,..",.,.....".."'..............,.."..""",...,,...,....,...,...,...".,.,.",.......,..,.,....." 1-4
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<br />CHAPTER 2-INFORMA TION GA THERING.....................................................,..................................... 2.1
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<br />DUCHESNE RIVER BASIN USGS FLow DATA..,...,'............,.."."'.........,..........,..".""....,..,...,............,...,..""........ 2-1
<br />USBR PRE-DEVELOPMENT Fwws ...,..,....,.:.......,.......,..............""",..,.................,.."..,."..",.........."""".,...,..".. 2-1
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<br />USFWS FLOW RECOMMENDATIONS ,....."."...........".."',..'......,......,.."....,.".,,.........,".......,......",.".,.,'."'....."",,. 2-1
<br />AGENCY OPERATING DATA ......,......'.........,..........,...."......"...,....".,..".,,'.",....",........".,..,...."".....,............,....." 2-1
<br />UBRP PROJECT DATA...,.........".."..".............."'..,........"'...............,.."..,........,.....,."...",.....,.............,..,.."".,..,... 2-2
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<br />CHAPTER 3-WORKSHOPS........................................................................................................................3-1
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<br />SUMMARY OF AGENCY WORKSHOPS..,....,.,..,...,........,...,...................,...,.,..,..,..,..".....,....."..............,......"....,..,.. 3-1
<br />CHAPTER 4-FLOW ANALYSIS OF DUCHESNE RIVER ..................................................................... 4.1
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<br />INTRODUCTION .......,...,.."..,'..,..,.......,.......",....,....,.,.".'....... ,................,.."..,...,...,....."..,..".............,....,..",'.,..,... 4-1
<br />FLOW STATISTICS AT RANDLETIFOR 1943 THROUGH 1994 ...............,....",...".."...,...,..,...................."..,.....,......4-1
<br />DEVELOPMENT OF RANDLETI FLow DATA TO EARLY 1900s ,.....,.......,..'................,...........,..,.,.,.,.......".....,.....,.4-3
<br />HYDROLOGIC EFFECTS ..... ..., ....... '.' ......." .......... ...,........,.. ,...".". "., ". ,....,....., ,........., ........., .... ,..., ............",.. ,....,. 4-3
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<br />CHAPTER 5-REVIEW OF USBR PRE.DEVELOPMENT FLOWS....................................................... 5.1
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<br />CHAPTER 6,-FLOW ANALYSIS OF DUCHESNE RIVER WITH FULL CUP
<br />BONNEVILLE UNIT OPERATION ..............................................................................................................6-1
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<br />BONNEVILLE UNIT OPERATION...........,......,.,............,.........................,.....................................................,.,...:.... 6-1
<br />HISTORy.... "...... .,.......... ...... .............. ..................,............ ,........ ......,............... ,......., ............ ............... '........, ...,.. 6-1
<br />REVIEW OF HISTORIC DIVERSiONS................,.... .... ........,..,......... .......... '''' ,. ................,. '" .... ....., ,................, ........ 6-1
<br />EXPECTED FuTURE DIVERSIONS...,.....,..,........ .... ........ ............ ........,................................... .......................,.... ..... 6-2
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<br />CHAPTER 7-FLOW ANALYSIS OF 'CHE DUCHESl'it; RIVER WITH UBRP PROPOSED
<br />OPERATION .................................................................,.................................................................................. 7.1
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<br />UBRP DESCRIPTION......,..,..,.,..........,..,..,.....,...,...,.....,.....,,..............."..,..................,.......,...............,...........,...,., 7-1
<br />Uintah Unit Project Summary ,...,.." ......,...... .... ..... ,.....,........ ............................... ,........ ... ............... ................ 7- J
<br />Upalco Unit Project Summary..................................,..,...........................................,...........................,.....,.... 7-2
<br />UBRP IMPACTS ON LOWER DUCHESNE RIVER,.......,........,......................"....,........",....,..,...................,.....,.,....., 7-2
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<br />SLC\l34107\REPT1.DOC
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