WSP06731

• File Number: 8240.200.33.C
• Description: 15-Mile Reach ‎(UCRBRIP)‎
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 1/1/1992
• Title: Study of Alternative Water Supplies for Endangered Fishes in the 15 Mile Reach of the Colorado River
• Water Supply Pro - Doc Type: Publication

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TABLE OF CONTENTS

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CHAPTER I
ThITRODUCTION 000000000. 0.00. 0.0.. 1

Background '.0 . 0 . . . 0 . 0 . 0 . 0 . 0 . . . . . 0 . 0.0 . . . . . 0 . . 0 . 0 . . 0 . 0 0 . o. 1
The Endangered Species Act o. 0 0 . . . . 0 0 . 0 0 . 0 . 0 . 0" . . 0 0 0 0 . 0 . o. 1
The Recovery Implementation Program . 0 . 0 . . . . . . . 0 . . . . . . 0 0 0 . . o. 1
Instream Flows for the Reach . 0 . ; 0 0 . 0 . . 0 . . 0 . 0 . 0 . . . 0 . . 0 0 .. 0 . 0 2
Study Activities ...... 0 . . 0 0 . . 0 . . . . . . . . 0 0 . . . . 0 0 . 0 0 0 . 0 0 o. 3
Study Goals and Objectives ... 0 0 0 . . 0 0 . 0 . . 0 . . . . 0 . 0 . . . 0 . . 0 . . . 0 " 3
Flow Recommendations and Supplemental
Flow Requirements for the Reach 0 . 0 . 0 . 0 . 0 . 0 . . 0 " 4

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Chapter II
Background 0.. 0 . 0 . 0 . 0 . . . . . 0 . . . 0 . 0 7
Operation of Grand Valley Diversions. . 0 0 . 0 . 0 . . 0 0 . . . . . . . 0 . . . 0 . . o. 0 7

History 0 0 0 . . . . . 0 . 0 . . . . . 0 . . 0 . . . . 0 . . . . . . 0 . . . . . . . 0 . . . .. 7
Grand Valley Diversions and the "Cameo Call" . . 0 . 0 . . . . . 0 . . 0 .. . . .. 7
The Orchard Mesa Check 0...0. 0..00. 0..0..0.0. 0...... 0......11
Historic Need for the "Check" . 0 0 . . 0 . 0 . . 0 . . . . . . . . 0 . 0 0 . . 0 0 0 . . 11
Impacts to Orchard Mesa Irrigation District on Operating the "Check" 0 . . . .. 12
Changes Under Full River Administration .. 0 0 . 0 0 0 . 0 . . . . . 0 . 0 . . . , 0 12
Impacts on the 15-Mile Reach . 0 . . . 0 . 0 . 0 ... . . . . . . 0 0 . 0 0 . 0 0 . . . . 13

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CHAPTER III
GAINS ALONG THE REACH 0....... 0 . 0 . 0 . . 0 15
Observed Gains Along the Reach . 0 . . 0 . . 0 . . 0 . 0 . 0 . . . . . . . . . . . 0 . . . . . 15
Estimated Gains Along the Reach . 0 . 0 0 0 0 0 . 0 0 . . 0 . 0 . 0 . . . . 0 0 . 0 0 . . . . 15

Irrigation ....... 0 . . . . . . 0 . . . 0 . 0 . . 0 . . 0 0 0 . 0 . . . . . 0 . 0 . . 0 ; 15
Municipal and Industrial Returns 0 0 . . 0 0 . 0 . . . . 0 . 0 . . . . . . 0 0 . 0 . . 0 . 19

CHAPTER IV
Utilization of Agricultural Water Rights. . . . 0 0 0 , . . 0 . . . 21
Economic Impact of Changing Agricultural Rights 0 0 . . . . . . 0 . 0 . . . . . 0 0 0 . 0 23
Junior and Upstream Water Rights 0 . 0 0 . . 0 . . 0 . 0 . 0 . . . 0 . . 0 . . 0 0 0 . 0 0 . 0 24
Upstream and Senior Rights 0 . 0 0 0 . 0 0 . 0 0 . . 0 0 0 . . . . 0 . . . . . . 0 . 0 . 0 0 . : 24
Legal and Institutional Issues ... 0 . 0 0 . 0 . 0 0 . . 0 . 0 . 0 . . 0 . 0 0 . . . . 0 0 27

Costs . . . . . . . . 0 . . . . 0 0 0 . 0 . . . 0 . . . . 0 . . 0 . 0 . . . . . . 0 0 . . . . . . 28
Cost Summary 0 . . 0 . 0 . . . 0 . 0 .. . . 0 . . 0 . . . 0 . 0 . . . 0 00 . . 0 . 0 . 0 . . 0 30.
Summary . 0 0 . . 0 . 0 . 0 . 0 . . 0 . 0 . . . 0 0 0 . . 0 0 . 0 . 0 . . . . 0 . . 0 0 '.0 . 30
Irrigation Rights in the Grand Valley 0 0 0 . 0 . 0 . . 0 . . . . . . 0 . . 0 . 0 0 0 . 0 . . . 30
Legal and Institutional Issues .. 0 . . . 0 0 0 . . 0 . . 0 . 0 . 0 . . 0 . . . . 0 . . . . 31

Costs . . 0 . 0 . 0 0 0 . . 0 . 0 0 0 . 0 0 0 0 0 . . 0 0 . . 0 . . 0 0 . . . 0 . 0 0 . . 0 0 . 0 32

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