Animas-La PLata Project Environmental Impact Statement

List of Tables
Page No.
3.2 -6 Summary of Flow Statistics for San Juan River at Four Corners, New Mexico for
Pre- and Post -Dam Historic Flows Future Condition with and without Refined
Altemative 4 for the Modeled Period 1929 -1993 ............................... 3 -25
3.2 -7 Mean, Minimum, and Maximum Monthly Average Flowof the La Plata River at Two
Locations With and Without Refined Altemative 4 ............................. 3 -27
3.2 -8 Mean, Minimum, and Maximum Monthly Average Flow of the Animas Riverat Two
Locations for Future Conditions with and without Refined Alternative 6 ............ 3 -30
3.2 -9 Mean, Minimum, and Maximum Monthly Average Flow of the San Juan River at Four
Comers, New Mexico for Future Conditions with and without Refined Altemative 6 ... 3 -31
3.2 -10 Increase in Average Monthly Flows in the Lower Pine River Resulting From
Transferring 10,000 Acres of Irrigation Depletion to Downstream M &I Use .......... 3 -33
3.3 -1 The Chemical Parameters Regulated along River ReachesPotentially Affected by the
Project......................... .....3 -36
3.3 -2 Water Quality Parameters Affected by Refined Alternative 4 for Colorado Portion
of the Animas River ..................... 3-47
3.3 -3 Water Quality Parameters Affected by Refined Alternative 4 for New Mexico Portion
of the Animas River ..................... .. 348
3.34 Water Quality Parameters Affected by Refined Alternative 4 for New Mexico
Portion of the La Plata River ...... .
3.3 -5 Water Quality Parameters Affected by Refined Altemative 4 for Mancos River ....... 3-50
3.3 -6 Water Quality Parameters Affected by Refined Altemative 4 for San Juan River at
Farmington, New Mexico .................................................. 3 -52
3.3 -7 Water Quality Parameters Affected by Refined Alternative 4 for San Juan River at
Shiprock, New Mexico .................................................... 3 -53 .
3.3 -8 Water Quality Parameters Affected by Refined Altemative 4 for San Juan River at
Four Corners, New Mexico ........... 3 -54
3.3 -9 Water Quality Parameters Affected by Refined Alternative 4 for San Juan River
between Four Corners, New Mexico and Mexican Hat, Utah ...................... 3 -55
3.4 -1 Wetland Vegetation Cover Types within Ridges Basin Reservoir Site ........... .
3.4 -2 Examples of Representative Widths of Canal Wetland Vegetation .................. 3 -67
3.4 -3 Loss of Upland Vegetation at Ridges Basin ....................... .
3.4-4 Wetland/Riparian Vegetation Crossed by Water Conveyance Laterals . ..... • • 3 -69
3.4 -5 Riparian/Wetland Loss within 100, 500, and 1,000 -feet CorridorsAlong Water 3 -75
Conveyance Laterals .......... 3 -75
3.4 -6 Refined Alternative 6Smmmary of Wetland Impact Avoidance Assumptions and
Costs ........ 3 -78
3.6 -1 Approximate Average Monthly Increases in the Pine RiverUnder Refined
Alternative 6 ............ 3 -108
3.7 -1 Special Status Plant Species Potentially OccurringWithin the Colorado and New
Mexico Region of the Project Area .......... ............................... 3 -111
3.7 -2 Special Status Wildlife Species Potentially OccurringWithin the Project Area ....... 3 -113
3.7 -3 Special Status Fish Species Potentially Occurring Within the Project Area .......... 3 -115
3.8 -1 Properties of Soil Map Units Potentially Affected by Project Implementation ........ 3 -131
3.9 -1 Summary of Surface Geologic Deposits and Paleontologic Resources in the Study
Area . 3 -147
3.10 -1 Estimated Land Purchases under Refined Altematives 4 and 6 . 3 -158
3.10 -2 Refined Alternative 6 Non - Binding Water Pipelines . 3 -168
3.10 -3 Crop Production ........................... 3 -172
3.10-4 Refined Alternative 6 Crop Production ....... ............................... 3 -173
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