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<br />CONTENTS
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<br />Page
<br />
<br />Summary .,...,..........."............"........................ S-l
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<br />Chapter 1 - Introduction . , . . . . . . . . . . . . . . . . . , , . . . . . . . . . . . . . , . . . , , . . . , . . . 1
<br />Authorization for report ,....,......, . . . . . . . . . , . . . . , . . . . . . . . . . . . . . . , 1
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<br />Legal aspects .........,.."................,...........,....,... 2
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<br />Water quantity . . , . . . . . . . , . . . . . . , . , , . . . . . . . . . . . , . . . . . . . . . . , . . . . . 2
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<br />Water quality . . , . . . . . . . . . . , . . . . . . , . , . . . . . . , , . . . . . . . . . . . . . . . . . . . 3
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<br />Chapter 2 - Description of basin ..,......,.........,..,...........,....., 5
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<br />Climate ....."...................,..................,......... 5
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<br />Hydrology .....,..............,.,...,.......................... 5
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<br />Reservoir storage . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . 7
<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 salinity . . . . . . . . . . . . , . . . . . . . . . . . . . . , . 10
<br />Consumptive use of water increases salinity "....................,..... 11
<br />Energy exploration and development ............,.................... 12
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<br />Erosion . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . 13
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<br />Effects of water quality on water users ....,......,..................... 14
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<br />Economic .,.................................................. 14
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<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 />Arizona . . . . . . . . . . . . . . . . . . . , . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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<br />Wyoming .....".......................................,..... 25
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<br />New Mexico ..,............................................... 26
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<br />Colorado , . . . . , . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . 29
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<br />Utah . . . . . . , . . . . . . . . . . . . . . . , , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
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<br />Lower Basin depletions .....................,...................... 37
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<br />Nevada . . . , . . . . . . , . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . 37
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<br />Arizona. , . . . . . , . . , . . . . . . , , . . . . . . . . . . . . . . . . . . . . , . , . . . , . . . . . . . . 38
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<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
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<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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