WSP08612

• File Number: 8240.200.43.A.1
• Description: Grand Valley/Orchard Mesa
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 9/1/1998
• Title: Grand Valley Water Management - Final Environmental Assessment
• Water Supply Pro - Doc Type: EIS

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CONTENTS

FIGURES

Project Map - Grand Valley Water Management .....................,. Frontispiece Map
Figure 1 - Irrigation and Hydroelectric Power Features near Palisade, Colorado. . . . . . . . . . . . . 7
Figure 2 - Colorado River Diversions at Peak Irrigation Demand ........................ 8
Figure 3 - Typical Canal Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 4 - Late Summer Canal Spills (acre-feet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

TABLES

Table 1 - Average Volume of Canal Spills ......................................... 16
Table 2 - 15-Mile Reach Average Flow Recommendations ............................30
Table 3 - Predicted Mean MontWy Late-Summer Flow in the 15-Mile Reach (cfs) . .. . .. . .. .32
Table 4 - August-October Increase in Water Supply to the 15-Mile Reach (acre-feet) . . . . . . , . 32
Table 5 - Estimated Use ofHUP Water in Green Mountain Reservoir (acre-feet) . . . . . . . . . . . 34
Table 6 - Grand Valley Power Plant/Orchard Mesa Pumping Plant Tailrace Flows. . . . . . . . . .52

ATTACHMENTS

A - Grand Valley Water Management Hydrology Analysis
B - Compliance with the Fish and Wildlife Coordination Act and Endangered Species Act
C - GVWM Draft Environmental Assessment - Comments and Responses
D - Distribution List

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