7641

• UCREFRP Catalog Number: 7641
• Author: U.S. Department of the Interior.
• Title: Quality of Water, Colorado River Basin.
• USFW Year: 1987.
• USFW - Doc Type: Progress Report No. 13,
• Copyright Material: NO

Summary
Part I

Part II

Part III

Part IV

Part V

CONTENTS

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1-1
1-1
1-2
1-2

. . . . 1-3

program . . 1-4

. II-1
. II-1
. II-1
. II-2
. II-3

Introduction . . . . . . . .
A. Authorization for report
B. Legal aspects . . . . .
1. Water Quantity. . . . . . . .
2. Water Quality . . . . . . . .
C. participants in the salinity control

Description of Basin . .
A. Climate .. . . . .
B. Hydrology . . . . .
C. Reservoir storage
D. Geology and soils

Colorado River water quality assessment
A. Wyoming . . . .
B. Utah. .
C. Colorado
D. Arizona
E. Nevada. . . . .
F. Cali fornia
G. New Mexico
H. Main stem reservoir quality

III-1
III-1
III-2
III-3
111-4
111-4
III-5
II 1-6
I II-6

Causes and impacts of salinity . .
A. Causes of salinity . . . . . . . . .
1. Natural sources of salinity
2. Agricultural sources of salinity
3. Municipal and industrial sources of salinity . .
4. Increased salinity from water depletions .
B. Effects of water quality on water users . . . .
1. Recreation, esthetics, and fisheries
2 . Economi c . . . . . . . . . . . .
3 . Heal th . . . . . . . . .

. IV-1
. IV-1
. IV-1
. IV-1
. IV-2
. IV-2
. IV-3
. IV-3
. IV-4
. IV-4

Historical salinity conditions .
A. Quality of water records .
B. Historical salinity . . . .
C. Factors in salinity trends .
1. Hydrologic conditions
2. Reservoir effects
3. Irrigation and increased depletions
4. Reduced flood plains. . . . . . .
5. Energy exploration and development .
6. Salinity control projects
7. Erosion
8. Geochemistry. . . . . . .

V-1
V-1
V-1
V-1
V-1
V-3
V-4
v-5
V-5
V-6
V-7
v-8