CRFS Technical Meeting UC Operations Update
description
Transcript of CRFS Technical Meeting UC Operations Update
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CRFS Technical MeetingUC Operations Update
March 30, 2010
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Topics
• Fontenelle and Flaming Gorge Operations• Aspinall Operations• Powell Operations
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Green River Basin – Fontenelle and Flaming Gorge
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Fontenelle Reservoir Elevation
6460.00
6465.00
6470.00
6475.00
6480.00
6485.00
6490.00
6495.00
6500.00
6505.00
6510.00M
ar-0
9
Apr
-09
May
-09
Jun-
09
Jul-0
9
Aug
-09
Sep
-09
Oct-
09
Nov
-09
Dec
-09
Jan-
10
Feb-
10
Mar
-10
Apr
-10
May
-10
Jun-
10
Jul-1
0
Aug
-10
Sep
-10
Oct-
10
Nov
-10
Dec
-10
Jan-
11
Feb-
11
Mar
-11
Apr
-11
Elev
atio
n (ft
)
Month
Fontenelle Operations WY2010Most Probable Operations (Mar 15 forecast)
Historic Max Elevation Min Elevation Projected Spring Target
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0500
100015002000250030003500400045005000550060006500700075008000850090009500
10000M
ar-0
9
Apr
-09
May
-09
Jun-
09
Jul-0
9
Aug
-09
Sep
-09
Oct-
09
Nov
-09
Dec
-09
Jan-
10
Feb-
10
Mar
-10
Apr
-10
May
-10
Jun-
10
Jul-1
0
Aug
-10
Sep
-10
Oct-
10
Nov
-10
Dec
-10
Jan-
11
Feb-
11
Mar
-11
Flow
(cfs
)
Month
Fontenelle Operations 2010Most Probable Operations (March 15 forecast)
Inf low (5-day avg) Projected Inf low Release Projected Release
Fontenelle Inflow and Release
Apr – Jul Inflow415 KAF (48%)
Projected Release 800 cfs steady
(no peak)
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CRFS Green River Basin April 2010
Live Capacity 3.752 MAFCapacity on 3/28/10 3.194 MAFAvailable Space .558 MAFPercentage of Full 80 %
Reservoir Elev. (Min Power) 5908.00 feetElevation on 3/28/10 6025.91 feetElevation above (Min) 117.91 feet
Average Inflow 1,240 cfsAverage Release 810 cfs
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CRFS Green River Basin
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CRFS Green River Basin
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CRFS Green River Basin
515 KAF = 43% Average
245 KAF = 21% Average
1,251 KAF = 75% Average
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CRFS Green River Basin
960 KAF = 70% Average
610 KAF = 45% Average
1,385 KAF = 101% Average
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CRFS Green River Basin
1,475 KAF = 58% Average
855 KAF = 34% Average
2,275 KAF = 89% Average
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CRFS Green River Basin
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CRFS Green River Basin
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CRFS Green River Basin
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Gunnison River Basin – Aspinall
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4,035 cfs
Mar 15 Forecast570 KAF
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UC Mainstem – Glen Canyon Dam
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Review of Operational CriteriaInterim Guidelines for Coordinated Operation of
Lake Powell and Lake Mead
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Lake Powell Equalization
Table
Water Year Lake Powell Elevation (feet)
2008 3,636
2009 3,639
2010 3,642
2011 3,643
2012 3,645
2013 3,646
2014 3,648
2015 3,649
2016 3,651
2017 3,652
2018 3,654
2019 3,655
2020 3,657
2021 3,659
2022 3,660
2023 3,662
2024 3,663
2025 3,664
2026 3,666
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Lake Powell & Lake Mead Operational Diagrams for 2010
1 Subject to April adjustments that may result in balancing releases or releases according to the Equalization Tier.2 These are amounts of shortage (i.e., reduced deliveries in the United States).3 If Lake Mead falls below elevation 1,025 ft, the Department will initiate efforts to develop additional guidelines for shortages at lower Lake Mead elevations.
11.41/1/10
Projection
3,6351/1/10
Projection
15.41/1/010Proj
ection1,0981/1/10
Projection
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Projected Operation for Remainder of WY2010
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24-Month Study
ProjectedPowell
WY Unreg Inflow
ProjectedPowell Apr- Jul Unreg Inflow
ProjectedLake Powell
EOWY Elevation
w/ 8.23 maf Release
Projected Glen
Canyon WY
Release
Projected Amount of EQ
Release
ProjectedLake Mead EOWY
Elevation
Probability of EQ
Aug2009
91%11.0 maf
91%7.25 maf 3656.44 ft 10.49 maf 2.26 maf 1105.0 ft 70%
Oct2009
83%10.0 maf
82%6.55 maf 3644.74 ft 10.59 maf 2.36 maf 1105.0 ft 55%
Nov2009
82%9.9 maf
82%6.55 maf 3644.33 ft 10.67 maf 2.44 maf 1105.0 ft 50%
Dec2009
82%9.9 maf
82%6.55 maf 3643.18 ft 10.77 maf 2.54 maf 1105.0 ft 36%
Jan2010
77%9.3 maf
78%6.2 maf 3638.31 ft 8.23 maf 0.00 maf 1077.02 21%
Summary of Lake Powell and Lake Mead Operations24-Month Study 2010 Water Year Projections
In 2010, the Equalization Elevation is 3642 ft.
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24-Month Study
ProjectedPowell
WY Unreg Inflow
ProjectedPowell Apr- Jul Unreg Inflow
ProjectedLake Powell
EOWY Elevation
w/ 8.23 maf Release
Projected Glen
Canyon WY
Release
Projected Amount of EQ
Release
ProjectedLake Mead EOWY
Elevation
Probability of EQ
Jan2010
77%9.3 maf
78%6.2 maf 3638.31 ft 8.23 maf 0.00 maf 1077.02 ft 21%
Feb 2010
73% 8.9 maf
73% 5.8 maf 3634.80 ft 8.23 maf 0.00 maf 1081.17 ft 25%
Mar 2010
69% 8.3 maf
68%5.4 maf 3631.88 ft 8.23 maf 0.00 maf 1081.36 ft 3%
Apr 2010 ---
Summary of Lake Powell and Lake Mead Operations24-Month Study 2010 Water Year Projections
In 2010, the Equalization Elevation is 3642 ft.
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