WSP09412

• File Number: 8210.140.20
• Description: Colorado River Basin Organizations and Entities - Colorado River Basin States Forum California
• State: CA
• Basin: Western Slope
• Date: 1/1/1972
• Author: Myron B Holburt
• Title: Annual Report for the Calendar Year 1971
• Water Supply Pro - Doc Type: Annual Report

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TABLE OF CONTENTS-Continued

Page
LITIGATION .................................,........................................................,.............,... 45
Arizona v. CaJifornia......................................................................,....................... 45
Present Petfected Rights ................,................................................................. 45
Official Diversion and Return Flow Records .............................................. 45
Lower Colorado River Return Flow Study.................................................. 45
Lake Powell and Rainbow Bridge National Monument Litigation............ 45
United States v. District Court in and Jor the County of
Eagle and the State of Colorado.................................................................... 46
Colorado River Indian Reservation Boundary................................................ 47

LEGISLATION ........................................................................................................ 48
Indian Trust Counsel Authority........................................................................ 48

TABLES

L Measured Flow in Colorado River Basin for Water Year 1970-71.......... 12
2. Capacity, Active Storage, and Storage Change of Major Colorado River
Basin Reservoirs During Water Year 1970-71.............................................. 13
3. Diversions Minus Measured Returns for Major Water Vsers, Lower
Colorado River, 1967 to 1971............................................................................ 16
4. Deliveries to Mexico, Colorado River System, 1962 to 1971...................... 16
5. Summary of Operations Below Parker Dam for Water Year 1970-7].... 18
6. Major Colorado River Basin Power Plants, Operating Characteristics,
and Reservoir Levels, Water Year 1970-71.................................................... 20
7. Releases from Hoover Dam and Energy Delivered to Hoover Power
A llonees ..................,... ....... ....... ....... ..... ........ ........ ...... ...... ........ ................ ........ .... 21
8. Firm Energy Deficiency at Hoover Power Plant Caused by Filling of
CRSP Reservoirs for Water Year 1970-71 .................................................... 23
9. Operation of Minute No. 218 (1965 to 1971) .............................................. 29

PLATES

1. Colorado River Basin .......................................................................................... 2
2. California Developments Vsing Colorado River Water.............................. 8
3. Virgin Flow of the Colorado River at Lee Ferry, 1896 to 1971................ 11
4. Colorado River Basin Reservoirs, Storage and Capacity ............................ 14
5. Variation in Storage of Major Colorado River Basin Reservoirs, October
1,1970 to September 30,1971.......................................................................... 15
6. Water Deliveries to Mexico, October 1, 1970 to September 30, 1971...... 18
7. Effect on Lake Mead Content and Hoover Energy Generation Due to
Initial Filling of CRSP Reservoirs .................................................................. 22
8. Colorado River Water Q!!ality Improvement Program .............................. 27
9. Salinity and Flows Near International Boundary........................................ 30
10. Framework Study Regions and Subregions in Pacific Southwest............ 40

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