July 1, 2015 The Colorado River: of the District€¦ · Rainbow Bridge National Monument. Goose...
Transcript of July 1, 2015 The Colorado River: of the District€¦ · Rainbow Bridge National Monument. Goose...
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July 1, 2015
The Colorado River:The Lifeblood of the
Southwest
Bill HasencampMetropolitan Water District
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LAKESHASTA
LAKEOROVILLE
Bay-Delta
STATE WATER PROJECT(2.0 MAF)
LOS ANGELESAQUEDUCTS
(0.5 MAF)
COLORADO RIVERAQUEDUCT(1.25 MAF)
METROPOLITAN WATER DISTRICT SERVICE AREA
LOCAL2.0 MAF
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Headwaters – Rocky Mountain National Park, Colorado
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Delicate Arch– Arches National Park, Utah
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Canyon Lands National Park, Utah
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Colorado River entering Lake Powell
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Rainbow Bridge National Monument
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Goose Neck State Park, Utah
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Havisupa Falls, Grand Canyon National Park
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Hoover Dam
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ApportionmentsDeliveries in 1990s
Mexico
Upper Basin StatesLower Basin States
1.71
2.8
.3
1.04
3.86
4.4
.84
1.5
.05
.39
.80
2.4
.2
5.1
.49
1.8
2.5
.02
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MAF1. Palo Verde ID (104,500 acres valley)2. Yuma Project (25,000 acres)3. (a) Imperial ID/Coachella Valley WD(b) PVID (16,000 acres mesa)
4. Metropolitan WD 0.550Subtotal
5. Metropolitan WD 0.700Total
3.850
4.400
5.100
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mafPVIDYuma ProjectIID 3.10CVWD 0.33MWD* 0.55
Total 4.40
*Amount fluctuates based on PVID/Yuma Project use, unused IID and CVWD water
0.42 (Average)
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Implement Agricultural Conservation Measures with IID
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Line the All‐American, Coachella Canals
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Incentivie PVID Farmers to Not Grow Crops
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121,067 AF
57,065 AF
57,685 AF
129,394 AF
112,719 AF
120,315 AF
106,504 AF
31,179 AF
32,750 AF
5,781 AF 50,601 AF
62,000 AF
122,000 AF
90% 45% 45% 100% 100% 100% 100% 25% 25% 50% 100%
‐
20,000
40,000
60,000
80,000
100,000
120,000
140,000
160,000
180,000
2005/06 2006/07 2007/08 2008/09 2009/10 2010/11 2011/12 2012/13 2013/14 2014/15 2015/16
Water Saved (TAF), Contract Year (August 1 – July 31)
Base Emergency Aug. 1, 2014 ‐ Jul. 31, 2015 Aug. 1, 2015 ‐ Jul. 31, 2016
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Metropolitan provided $6 million in 2005Managed by Volunteer BoardHalf of Funds Distributed
Grants and loansIncluded small business development; job training programs
MWD, PVID non‐voting membersEconomic study concluded program is successful
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Nevada’s water use has dropped over past decadeMWD has access to NV’s unused water during current droughtMWD to return water when Nevada’s demands grow
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MWD can store 1.5 million acre‐feet in Lake Mead
Avoids costs and impacts of building new storage reservoirs
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40 4194
146
256
435
580
474
151
0
100
200
300
400
500
600
700
2006 2007 2008 2009 2010 2011 2012 2013 2014
Thou
sand
Acre‐Feet
Calendar Year
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0%
10%
20%
30%
40%
50%
60%
70%
Percen
tage of Irrigated
Acreage Alfalfa
Other Field Crops
Cotton
Other Crops
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Crop Approximate Water Use (AF/acre/year)
Alfalfa 5.1Sudan Grass 3.4Bermuda Grass 3.2Melons (Spring + Fall) 3.1Cotton 2.9Small Grains (Spring + Fall) 1.8Broccoli (Spring + Fall) 1.2Lettuce (Spring + Fall) 1.2
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‐150
‐100
‐50
0
50
100
150
Thou
sand
Acre‐Feet
Priority 1, 2, 3(b) use over 420 TAF
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0.0
0.2
0.4
0.6
0.8
1.0
Million Ac
re‐Feet (MAF
)
ICS Delivery
SNWA Storage Account
LCWSP
PVID Fallowing Program
Canal Lining to MWD
Canal Lining to SDCWA
IID‐SDCWA Transfer
MWD‐IID Conservation
Adjusted BasicApportionment
1.18 MAF Net Diversion
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Abnormally DryModerate DroughtSevere DroughtExtreme DroughtExceptional Drought
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2.2 1.81.1 1.0
1.72.4 2.7 2.3
1.2
0
1
2
3
4
2006 2007 2008 2009 2010 2011 2012 2013 2014
Million Ac
re‐Feet
Emergency Storage Dry‐Year Storage
End of Year Balances*
*Estimated actual storage balances, subject to change.
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0.0
0.2
0.4
0.6
0.8
1.0
1.2
Million Ac
re‐Feet (MAF
)
Potential New ExchangesICS DeliveryIID ExchangeLCWSPPVID Fallowing ProgramCanal Lining to MWDCanal Lining to SDCWAIID‐SDCWA TransferIID‐MWD ConservationBasic Apportionment
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0
2
4
6
8
10
12
14
16
18
Runo
ff (M
AF)
Actual Normal Forecast
Historic 15‐year Drought
10.88 MAF
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8,000
9,000
10,000
11,000
12,000
13,000
14,000
15,000
16,000
17,000
18,000
19,000
20,000
21,000
22,000
23,000
x 10
00 a
cre-
feet
Lake Mead Storage2000 – 2015
Surplus
Shortage
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0
5
10
15
20
25
30
1905 1910 1915 1920 1925 1930 1935 1940 1945 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005
AN
NU
AL
FLO
W (M
ILLI
ON
AC
RE-
FEET
)COLORADO RIVER NATURAL FLOW (AT LEE'S FERRY)
1906-2008103 Year Average = 15.0 MAF
annual flow
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0
5
10
15
20
25
30
1905 1910 1915 1920 1925 1930 1935 1940 1945 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005
AN
NU
AL
FLO
W (M
ILLI
ON
AC
RE-
FEET
)COLORADO RIVER NATURAL FLOW (AT LEE'S FERRY)
1906-2008103 Year Average = 15.0 MAF
annual flow
1905‐1922 Ave. = 16.5 MAF
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Intakes 2 & 3(17% of capacity)
1,220 ft.
1,075 ft.
1,000 ft.
Hoover Dam
37% of capacityJune 2015
Nevada’s Principal Concern: Not being able to access water
Source: Bureau of Reclamation
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ApportionmentsSustainable Deliveries?
Mexico
Upper Basin StatesLower Basin States
1.71
2.8
.3
1.04
3.86
4.4
.84
1.5
.05
.59
1.2
2.2
.25
4.4
.73
2.7
1.3
.04
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Formed in 1905Sustained by Ag drainage
50% Saltier than OceanSalinity increase 1%/yrSoon too Salty for Fish
Sea protected from Impacts of transfer to San Diego County
IID to deliver 800 TAF of “mitigation water” to Salton Sea through 2017Provided 15 years for state to develop long‐term solution
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To date, state has done little to advance Sea’s restoration
State issued Draft EIRPreferred Alternative cost $9 billion, with $100 million O&M
IID issued petition to SWRCB to condition future transfers on Salton Sea restoration
SWRCB considering petition
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Formed in 1905Sustained by Ag drainage
50% Saltier than OceanSalinity increase 1%/yrSoon too Salty for Fish
Sea protected from Impacts of transfer to San Diego County
IID to deliver 800 TAF of “mitigation water” to Salton Sea through 2017Provided 15 years for state to develop long‐term solution
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If consistent with restoration, mitigation water can be sold to DWR instead of delivered to SeaDWR, in turn, would sell water to MWDProceed would benefit Salton Sea restoration
$125 million of funds availableProvide So. Cal. with up to 400,000 af, easing drought
State of California would need to initiate this DFG Code provision
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Colorado River Supplies have been critical in dealing with current drought
Colorado River faces two looming challenges:
River is over‐allocated and not sustainable for current demands
A long‐term solution to the Salton Sea is needed to avoid water conflicts in California
Collaboration with other agencies will be needed to address challenges
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213‐217‐[email protected]