WSP08078

• File Number: 8277.500.10
• Description: Price and San Rafael Basin Unit - Colorado River Water Quality Improvement Program
• State: UT
• Basin: Colorado Mainstem
• Date: 12/1/1993
• Title: Planning Report / Final Environmental Impact Statement
• Water Supply Pro - Doc Type: EIS

CONTENTS

Page

Chapter I-Introduction
Location and setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Purpose, scope, and objectives of study . . . . . . . . . . . . . . . . . . . . . . 1-2
Study authority ....................................... 1-3
Environmental considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Mitigation and salinity ............................... 1-5
Selenium contribution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Flow depletions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 1-6
Planning considerations and constraints . . . . . . . . . . . . . . . . . . . . . 1-6
Reclamation-mitigation .............................. 1-8
U.S. Department of Agriculture-habitat replacement. . . . . . . . 1-8
Public involvement/scoping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Previous studies in the project area ........................ 1-9
Joint Reclamation/SCS studies ......................... 1-10
Relationship to other water resource activities ................ 1-11
Scofield project ..................................... 1-11

Emery County . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-11
Ferron watershed project. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-11

Chapter II-Need for action

Introduction .......................................... II-I
Colorado River Basin salinity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-I
Price-San Rafael rivers basins salt loading . . . . . . . . . . . . . . . . . . . 11-3
Existing irrigation systems and practices .................... 11-6
Existing winter stock watering systems and practices. . . . . . . . . . . 11-8

Chapter III-Resources and constraints
Water supply and water rights . . . . . . . . . . . . . . . . . . . . . . . . . . .. 111-1
Water supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 111-1
Water rights and related constraints. . . . . . . . . . . . . . . . . . . .. 111-1
Technology and saline water use/disposal . . . . . . . . . . . . . . . . . . .. 111-4
Environmental constraints and conflicts . . . . . . . . . . . . . . . . . . . .. 111-5

Chapter IV-Alternatives
Standards for plans .................................... IV-2
Plan selection criteria ................................ IV-2
Viability and other tests . . . . . . . . . . . . . . . . . . . . . . . . . . .. IV-2
Cost effectiveness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. IV-3
Plan formulation. . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. IV-4

Onfarm .......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. IV-4
Off-farm .......................................... IV-5
Alternative plans ...................................... IV-5
Resource Protection Altemative (preferred plan) . . . . . . . . . . .. IV-5
Irrigation improvement increment. . . . . . . . . . . . . . . . . . . . . .. IV-8
Onfarm facilities ................................. IV-9
Sprinkler irrigation systems . . . . . . . . . . . . . . . . . . . . .. IV-9

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