WSP08073

• File Number: 8277.100
• Description: Salinity Projects Not Located in Colorado - Colorado River Salinity Control Forum
• Basin: Colorado Mainstem
• Date: 9/1/1981
• Title: Salinity Control and Environmental Assessment - part 1
• Water Supply Pro - Doc Type: EIS

Page

PROBLE!1S AND NEEDS....................................................... 27
Problems and Needs Associated with Salt Loading........................ 27

Sources of Salts..,.................................................. 27
.Am.Otmts of Salts..................................................... 33
Control Potential.................................................... 33
Onfarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 33
Off-farm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 34
Problems and Needs Associated with Erosion and Sedimentation........... 34
Treatment Opportunities for Erosion Problems......................... 36
Problems and Needs Associated with Water Resource...................... 36

ALTERNATIVE PLANS...............,........................................ 38
Future Without Salinity Program............... 1.1. . . . . .. . . . . . . . . . . .. . . .. 41
Alternative 1.......................................................... 43
Alternative 2.......................................................... 45
Comparative Analysis for Plans......................................... 46

\~.:

RECOMMENDED PLAN AND IMPLEMENTATION PROGRAM.............................. 51

Public Rec01DDlendations................................................. 51
Basis for Selection of Recommended Plan................................ 51
Additional Research and Demonstration Needs............................ 52

Effects of Reco1DlD.ended Plan............................................ 52
Implementation Program................................................. 52

BIBLOGR.A.PHY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 55

APPENDICES
Appe dix A
Appendix B
Appendix C
Appendix D

FIGURES
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 5-A.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure l3-A.
Figure l3-B.
Figure l3-C.
Figure 14.

Environmental Evaluation Inventory Worksheets............. A-l
Best Management Practices and Explanation................. B-1
Biotic Communities and Major Wildlife Resources........... C-l
Geohydrology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. D-l

Location Map....................................... .......
Land Ow'nership............................................
Program Area Map............................ ~ . . . . . . . . . . . . .
Geologic Map..............................................

Water Movement Virgin River...............................
Salt Movement Virgin River................................
Water Quality Measuring Stations..........................
Irrigated Land, Littlefield Area, Arizona.................
Irrigated Land, Mesquite Arsa, Arizona-Nevada.............
Irrigated Land, Bunkerville Area, Nevada..................
Irrigated Landt Riverside Area, Nevada....................

Salls Map.................................................
Salt Source...............................................

Agricultural Lands with Saline Soils, Littlefield Area....
Agricultural Lands with Saline Soils, Mesquite Area.......
Agricultural Lands with Saline Soils, Bunkerville Area....
Agricultural Lands with Saline Soils, Riverside Area......

Erosion Areas.................................... . . . . . . . . .

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