WSP07317

• File Number: 8210.140.20
• Description: Colorado River Basin Organizations and Entities - Colorado River Basin States Forum - California
• State: CA
• Basin: Western Slope
• Date: 1/1/1971
• Author: Myron B Holburt
• Title: Annual Report for the Calendar Year 1970
• Water Supply Pro - Doc Type: Annual Report

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TABLE OF CONTENTS-Continued

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Lower Colorado River Return Flow Study Task Force... ......................
United States v. Imperial Irrigation Di.....rrict ............................. ..............
United States v. Vi.vtriet Court in and for the County of
Eagle and the State of Colorado....................................................................
Lake Powell and Rainbow Bridge National Monument Litigation ......
Classification of Public Lands, Lower Colorado River............................

LEG ISLA"'I 0 N ...................................................... ................................. ......... .... ....
California Environmental Q!!ality Legislation ............................................
Federal Environmental Protection Agency...................................................
Indian Trust Counsel Authority ............................ ........................................

TABLES

I. Measured Flow in Colorado River Basin for Water Year 1969-70.......... 11
2. Capacity, Active Storage, and Storage Change of Major Colorado River
Basin Reservoirs During Water Year 1969-70............................................ 12
3. Diversions Minus Measured Returns for Major Water Users, Lower
Colorado River, 1966 to 1970 ............................................................................ 14
4. Water Deliveries to Mexico, Colorado River System, 1962 to 1970 ........ \4
5. Summary of Operations Below Parker Dam for Water Year 1969-70.... 15
6. Major Colorado River Basin Power Plants, Operating Characteristics,
and Reservoir Levels, Water Year 1969-70.................................................... 16
7. Releases from Hoover Dam and Energy Delivered to Hoover Power

A llollees ........ .... ............................................... ..................................... ............... 16
8. Monthly and Accumulated Firm Energy Deficiency at Hoover Power
Plant Caused uy Filling of CRSP Reservoirs for Water Year 1969-70. 16
9. Operation of Minute No. 21~ (1965 to 1970) ................. ............................ 22

PLATES

I. Colorado River Basin ........... ........................ .................................... ................ 2
2. California Developments Using Colorado River Water............ ................. 8
3. Virgin Flow of the Colorado River at Lee Ferry, 1896 to 1970................ 10
4. Colorado River Basin Reservoirs, Storage and Capacity.................. 12
5. Variation in Storage of Major Colorado River Basin Reservoirs, October
I, 1969 to September 30, 1970.......................................................................... 13
6. Water Deliveries to Mexico, October 1,1969 to September 30,1970...... 15
7. Effect on Lake Mead Content and Hoover Energy Generation Due to
Initial Filling of CRSP Reservoirs .................................................................. 17
8. Salinity and Flows Near International Boundary.............................. 24
9. Framework Study Regions in Pacific Southwest ........................................ 36

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