WSP11255

• File Number: 8276.852
• Description: Moapa Valley Subevaluation Unit - Colorado River Salinity Control Project
• State: NV
• Basin: Colorado Mainstem
• Date: 1/1/1993
• Title: Final Environmental Impact Statement - Moapa Valley Unit
• Water Supply Pro - Doc Type: EIS

APPEND:ICES
Appendix A _ Geoloqy and Soils of the Moapa Valley.......... A-l
Appendix B - Water Quality Data............................. B-1
Appendix C _ Biologic Assess.ent............................ C-l
Appendix 0 Salinity control Practices.........,.......,... 0-1
Appendix E _ Fraaework Plan for Monitoring and Evaluation.., E-l
Appendix F _ Priority Rating criteria....................... F-l
Appendix G _ comments and Responses on Draft E:IS............ G-1

F:IGURES
Figure 1,
Figure 2.
Figure 3.
Figure 4.
Figure 5,
Figure 6.
Figure 7.

Figure 8.
Figure 9.
Figure 10.

TABLES
Table 1,

Table 2,.
Table 3.
Table 4,
Table 5 .
Table 6,
Table 7.
Table 8.
Table 9.

Table 10.

Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.

Table 17.

Table 18.

Location Hap...................................... iv
Saline soils...................................... 7
Erosion Areas..................................... 12
Land ownership.................................... 14
program. Area...................................... 15
Flow oiaqraa - Present condition.................. 22
Salinity concentration of Total Dissolved Solids -
Surface Water................................... 24
Component Salt Loads - Present condition.......... 27
Flow Diaqraa - Alternative 1 - No Action.......... 54
Flow Diagram - Alternative 5...................... 55

summary of Significant Physical Effects of

Alternatives.... .. ............... ........ . ... . ...

v
vi
21
26
32
36
52
53

. S11111111ary of Financial Effects of Alternatives......
Water supply and Depletions - Present Condition...
salt Load - Present Condition.....................
Present Habitat Types and Acreages................
Wetland Habitat Types and Acreages................
Onfarm :Irrigation Water Management 8"1111II"1")'.....,..
Water and Salt Budget - Alternative Plans.....,...
National Economic Development Account,
Alternative 5.................................... 56

Regional Economic Development Account,
Alternative 5.................................... 57
Environmental QUality Account, Alternative 5...... 58
Other Social Effects, Alternative 5............... 60
Program Measures and Costs - Recommended Plan..... 62
:Installation Schedule - Recommended Plan....,..,.. 66

Wetlands Affected. .0. . . . . . . . . . . . .... . .. .. . . . . ... . .. 74
Effects of Recommended Plan on Resources of
Principal National Recognition.................,. 79
compliance with Water Resource Council
Designated Environmental statutes.....,.....,.... 80
Evaluations of Significant Concerns.............. 84

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