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<br />ClI
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<br />CONTENTS
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<br />Summary ..........".....,..,....,.............".......",.,.... S-1
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<br />Chapter 1 - Introduction . . . . . . . . . , . , . . . . . . . . . . . , . , . . . , . , . . . . . . . . , . , , . . . 1
<br />Authorization for report ........ , . . . , . . . . . . , . . . . . . , . , . . . . . . , , . . , , . . . 1
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<br />Legal aspects ..,.,..,..,......"...,.,......"...,.,.....,...,., 2
<br />Water quantity . . . . , , . . . , , , . . . . . . . . . . . . . . . . . , . , , , . . . . . . , , . . , . . . . 2
<br />Water quality. . . , . . . . . , . , . . . . . , , . . . , . . , . . . . . , , . . . . . , , , . , . . . . . . . 3
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<br />Chapter 2 - Description of basin ....",...,.........,.............,.,.". 5
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<br />Climate ..............................................."...... 5
<br />Hydrology ........,...............,..,..........,.......,....,. 5
<br />Reservoir storage . . . . . , . . . . . . . , . . . . . . . . . . . . . , . . . . . , . . . . . . , . , . , , . . . 7
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<br />Geology and soils ..,.......,......"...........,.,...,.."....... 8
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<br />Chapter 3 - Causes and impacts of salinity . , . , . . , . . . . . . , . . . . . , , . . . . . . . . , , . , . 9
<br />Causes of salinity ..."....."......,..."".....,....,...,....... 9
<br />Agricultural sources of salinity. . . , . , . . . . . . . . . . , , , . , . . . . . . , , . . . . . . . , . 9
<br />Natural sources of salinity , . . . . , , , . . . . , , . . . . . . . . . . . . , , , . . . . . . , , . , . . 10
<br />Municipal and industrial sources of salinily . . . , . , , . , . . . . , . . . , . . . , , . . . . . . 10
<br />Consumptive use of water increases salinity .......,........,.,......,.. 11
<br />Energy exploration and development ..."....,.......".....,.,."... 12
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<br />Erosion , . . . . , . . . . . . . . . . , . . . . . . . . . . . . . . . . . . , , . . . . . , . , . . . . . . , . , 13
<br />Effects of water quality on water users ...".,...........",...,..'"." 14
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<br />Economic ..,....,.,..,..."...,....,.......".,.............. 14
<br />Health . . , . , . . . . , , , . . . , . , , . , . . . . , . . . , . . . . . . , . , . . . . . , , . , . . . . . , . 15
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<br />Chapter 4 - Present and future development ...,...,.........,......,.,.,.... 17
<br />Upper Basin depletions ",....,.,....,....,.,........,..."........ 17
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<br />~=".,.,..,........,......,."...,.,......,.,...,.,.,... M
<br />Wyoming ."............",...".....,.......".,...",.,.... 25
<br />New Mexico .....,....."..,..,......,.....".."..."......,. 26
<br />Colorado . , . . . , . . . . . . . . . , . . . , . , . . ' . , . . . . , . . . , . . . , . . , . , . . . . . . . . 29
<br />Utah . , . . . . . . , . . . . . . . . . . , . . . . . . . . . . . . . , . , . . . . . , , , . . . . , . ' . , . . . 35
<br />Lower Basin depletions ',....."...,....,."............,."..,.... 37
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<br />Nevada ..., . , , . . . . . , . . . . . . . , . . . . ' . , . . . . , , . . . . . . , . . . . . . . ' . . . . . 37
<br />Arizona . . . . . . . . . . , . . . . . . , , . . . . . . . . . , , . . . . . . . . , . . . . , . , , , ' , . . . . 38
<br />California .............,...................................... 40
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<br />Chapter 5 - Colorado River Basin Salinity Control Program . , . . . , . . . . . . . . , , ' . . . . . 43
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<br />Title I Program . . , . . . . . . . . , . . . , . , , . . , , . . , . . . , , . . . . . . . . . , . . . , . . , . . 44
<br />Coachella Canal lining ..............,.....................,.",.. 44
<br />Protective and regulatory pumping . . , , , . . . . , . , . . . . , , . , . . . . , . , . . . . . . . , 44
<br />Yuma Desalting Plant . . . . , . , . . . , , , . . . . . , . . , , . , , . , . . . . , . , . . , . . . . , , 45
<br />Wellton-Mohawk Irrigation and Drainage District ,.,......,......"..,... 46
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