On The Colorado
ABOUT ARTICLES FORUM RESOURCES GALLERY CROSS

Discussion:   Talk about this article...

Part Five

July 13, 2021
by John Weisheit


ORDER OF PRIORITIES FOR COLORADO RIVER MANAGEMENT
2006 Arizona v California Decree
  • 1) River regulation, improvement of navigation, and flood control;
  • 2) Irrigation and domestic uses, including the satisfaction of present perfected rights (see notes below);
  • 3) Hydropower;
  • 4) Satisfy 1944 Mexican Treaty.
  • Note: Perfected water rights older than June 25, 1929 (the effective date of Boulder Canyon Project Act).
  • Note: Unlike state rights under prior appropriation systems, federal reserved water rights may remain unused for many years, and they are not subject to abandonment or relinquishment. (Reference)
  • Note: Federal laws and treaties are subject to change.

STREAM FLOW AT CRITICAL GAGE STATIONS (Real Time)
Note: There are flow requirements for the recovery of endangered fish

ADMINSTRATIVE RECORDS
On The Colorado Website

UPPER COLORADO RIVER COMMISSION (UCRC) (Website of the Commission)

BASELINE DOCUMENTS

ANNUAL OPERATING PLANS (AOP) (Reclamaion website)
Bureau of Reclamation

1970; 1971; 1972; 1973; 1974; 1975; 1976; 1977; 1978; 1979; 1980; 1981; 1982; 1983; 1984; 1985; 1986; 1987; 1988; 1989; 1990; 1991; 1992; 1993; 1994; 1995; 1996; 1997; 1998; 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025; 2026;

AOP: The 30-year averages of unregulated flow into Lake Powell

  • 1971 to 2000: 12.06 million acre-feet (maf) (2008 AOP)
  • 1971 to 2000: 12.04 maf (revised in 2010 AOP). This 30-year average ended in the surplus tier at Lake Mead.
  • 1981 to 2010: 10.83 maf (2013 AOP). This 30-year average ended in the normal tier at Lake Mead.
  • 1991 to 2020:   9.70 maf (provisional data). This 30-year average ended in the shortage tier at Lake Mead.
  • 2001 to 2030:    8.7 maf (trendline projection). This 30-year average will present shortages to the Upper Basin.
  • 2011 to 2040:    7.8 maf (trendline projection). Economic stagnation?
  • 2021 to 2050:    7.1 maf (trendline projection). Human and animal migrations?

AOP: The unregulated inflow by year into Lake Powell and by percent of the 30-year average

  • 1981 to 2010: Year 2000 - 62%;  2001 - 59%; 2002 - 25%; 2003 - 51%; 2004 - 49%;  2005 - 105%; 2006 - 73%; 2007 -  68%; 2008 - 102%; 2009 - 88%; 2010 - 73%.
  • 1991 to 2020: Year 2011 – 139%; 2012 – 45%, 2013 – 47%; 2014 – 96%; 2015 – 94%; 2016 – 89%; 2017 – 110%; 2018 – 43%; 2019 – 120%; 2020 – 54%;
ARCHIVE OF 24-MONTH REPORTS(Reclamaion website) 24-MONTH REPORTS BY THE YEARS AND MONTHS
Note: Long-term archives not available on Reclamation website.

2003: July; December; 2004: January; April; July; September; October; November; December; 2005: January; February; March; May; 2006: January; 2007: January; February; March; April; May; June; July; August; September; October; November; December; 2008: January; February; March; April; May; June; July; August; September; October; November; December; 2009: January; February; March; April; May; June; Juyl; August; September; October; November (lc); November (uc); December (uc); December (lc); 2010: January; February; March; Aprii; May; June; August; September; October; November; December; 2011: January; February; March; April; May; June; July; August; September; October; November; December; 2012: January; February; March; April; May; June; July; August; September; October; November; December; 2013: January; February; March; April; May; June; July; August; September; October; November; December; 2014: January; February; March; April; May; June; July; August; September; October; November; December; 2015: January; February; March; April; May; June; July; August; September; October; November; December; 2016: January; February; March; April; May; June; July; August; September; October; November; December; 2017: January; February; March; April; May; June; July; August; September; October; November; December; 2018: January; February; March; April; May; June; July; August; September; October; November; December; 2019: January; February; March; April; May; June; July; August (LB); August (UB); USBR Press Release; September; October; November; December; 2020: January; February; March; April; May; June; July; August; September; October; November; December; 2021: January; February; March; April; May; June; July; August; September; October; November; December; 2022:

UPPER BASIN CONSUMPTIVE USE AND LOSS REPORTS (Reclamaion website)

1971-1995; 1971-1975; 1976-1980; 1981-1985; 1986-1990; 1991-1995; 1996-2000; 2001-2005; 2006 -2010; 2011-2015; 2016 - 2020;

LOWER BASIN CONSUMPTIVE USE REPORTS (Reclamaion website)

RESOURCES FROM BUREAU OF RECLAMATION
  Colorado River System Simulation (CRSS). The software can be leased and downloaded HERE.

Reclamation graphics
    2012 Basin Study - Climate scenario; via FOIA fullfillment.
    2010 to 2060 Projections; Run 21 (or Trace 21).

 Reclamation graphics modified to enhance interpretation
    2010 to 2060 Projections; Run 21 (or Trace 21).

This page is Part Two


Discussion:   Talk about this article...



Topics

Administrative
Dam Operations
History
Legal
Management
Pollution
Public Notices
Recreation
Science



Sponsors

Back of Beyond Books
Barbara Anne Morra Memorial
Canyon Country Rising Tide
Canyonlands Watershed Council
Celebrating the Grand Canyon
Center for Biological Diversity
Colorado River Connected
Colorado Riverkeeper
Corey Allen Hale Memorial
CounterPunch
Dive Into Democracy
EcoMoab
Five Quail Books
Friends of the Earth
Going Solar
Great Basin Water Network
Holiday River Expeditions
Living Rivers
New Belgium Brewing Company
O.A.R.S White Water Rafting
Patagonia
Peaceful Uprising
People's Energy Movement
Resource Renewal Institute
Returning Rapids Project
River Runners for Wilderness
Save The Colorado
Serena Supplee Gallery
Sheep Mountain Alliance
Steaming Bean Coffee Company
Tom Till Photography
Uranium Watch
Utah Rivers Council
Utah Tar Sands Resistance
Wabi Sabi
Waterkeeper Alliance


On The Colorado All content © 2021 On The Colorado Contact UsFollow us on Twitter