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MP Region Water Supply Allocation

~ Interpreting Water Supply Forecasts ~

Up-To-Date
Statistical Information
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CVP Quantities/2013 Allocation
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Water Year 2013 Carry Over Announcement

 


Mid Pacific Region

Water Year 2013 Water Supply Allocation

Update: March 22, 2013

 

Sacramento Valley Water Year Type and Percentage of Average Runoff

North of Delta (percentages of contracted water supply)

South of Delta (percentages of contracted water supply)

 

 

AG

M&I

R

WR

AG

M&I

R

WR

Conservative Forecast (90%)

Critical 65% of Average

75

100*

100**

100***

20

70

100**

100***

Median Forecast (50%)

Dry 78% of Average

100

100

100

100

30

75

100

100

5 Yr Average Allocation

76

90

100

100

43

77

100

100


Ag = Agriculture M&I = Municipal and Industrial R = Refuges WR = Water Rights  

* North-of-Delta M&I water service contractors who are serviced by Folsom Reservoir on the American River are allocated 75 percent of their historic use.
* North-of-Delta M&I water service contractors who are serviced by Folsom Reservoir on the American River are allocated 75 percent of their historic use.
* Contra Costa Water District, which receives water directly from the Delta, is allocated 75 percent of its historic use amount of 170,000 acre-feet.
**The allocation shown in the table for wildlife refuges applies to Level 2 water supplies. A full refuge water supply (including Level 2 and incremental Level 4 water) is 555,515 acre-feet. Level 2 is 422,251 acre-feet which accounts for approximately three-fourths of annual refuge needs.
*** The allocation for water rights contractors are based upon pre-CVP held water rights and wildlife refuge contractors are based upon pre-established Shasta inflow criteria.

 

 

 

 

 

News Release
(click to go to press release)

March 22, 2013

Reclamation Announces Update to the 2013
Central Valley Project Water Supply Allocation

Allocations Decreased for Certain South-of-Delta CVP Water Contractors

SACRAMENTO, Calif. – As a result of extremely dry conditions in California, the Bureau of Reclamation today announced an update to the Water Year 2013 water supply allocation for the Central Valley Project.

Following a wet start to the water year in November and December 2012, the January – March period is tracking to be the driest on record, resulting in a critical classification for both the Sacramento and San Joaquin river basins based on the 90-percent exceedence forecast. Reclamation is announcing a decrease in the allocation for the following South-of-Delta water service contractors:

The initial CVP allocation in February was low, based in part on pumping restrictions needed to protect threatened fish species under the Endangered Species Act; however, this decreased allocation for South-of-Delta contractors is based on the critical water year classification, the projection of reduced Delta inflows this spring, significant loss of reservoir storage to support pumping this summer and water quality permit requirements.

“We are facing a challenging water year, but we continue to look for opportunities to facilitate supplemental water supplies through water transfer and exchange programs and new arrangements that could lead to additional flows in the system,” stated Mid-Pacific Regional Director David Murillo. “We are exploring all options to assist in alleviating the serious impacts of these drought conditions.”

The decreased allocations have occurred despite recent actions being taken by Reclamation to help shore up water supplies as described in the CVP Water Plan 2013, available at http://www.usbr.gov/mp/pa/water. Some of these actions include the completion of the Delta-Mendota Canal/California Aqueduct Intertie in May 2012 and the securing of water to supplement CVP supplies as a result of the Yuba Accord.

“Reclamation continues working with our partners to find a comprehensive, long-term solution to achieve the dual goals of a reliable water supply for California and a healthy Bay Delta ecosystem that supports the state’s economy,” Murillo said. “It should be noted that the successful completion of the Bay Delta Conservation Plan would include a new diversion and conveyance facility utilizing state-of-the-art protections for endangered fish species, which would improve water supply reliability even in years such as this, while improving environmental conditions in the Delta.”

The full CVP allocation from February 25 follows, including the decreased allocations for certain south of the Delta contractors:

North of the Delta Contractors

Sacramento River

American River

In-Delta

South of the Delta Contractors

Wildlife Refuges

Friant Division Contractors

Eastside Water Service Contractors

Reclamation determines the water allocation for agricultural, environmental and municipal and industrial purposes based upon many factors, including water quality requirements, flow objectives, relative priority of water rights, and Endangered Species Act protection measures, including operational adjustments in accordance with biological opinions to protect threatened and endangered fish species.

Water supply updates will be made as appropriate and will be posted on http://www.usbr.gov/mp/pa/water. For additional information, please contact the Public Affairs Office at 916-978-5100 (TTY 916-978-5608) or email mppublicaffairs@usbr.gov.

###

Reclamation is the largest wholesale water supplier and the second largest producer of hydroelectric power in the United States, with operations and facilities in the 17 western states. Its facilities also provide substantial flood control, recreation, and fish and wildlife benefits. Visit our website at http://www.usbr.gov.

 

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Learn more about the Central Valley Project

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Bureau of Reclamation, Mid-Pacific Region
2800 Cottage Way, Sacramento CA  95825-1898
Main (916) 978-5100   |   FAX (916) 978-5114   |   TTY (916) 978-5608

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April 18, 2013

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