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- April 2005 CVP Water Allocation to Increase By 5 to 10 percent
News Release Archive
April 2005 CVP Water Allocation to Increase By 5 to 10 percent
Media Contact:
Jeffrey S. McCracken, 916-978-5106, 04/18/2005 14:18
For Release: April 18, 2005
Northern California has experienced well above normal precipitation during March, and the hydrologic conditions at a 90-percent probability of being exceeded has improved to a "Below Normal" year type. The Below Normal Year classification is based on the forecasted Sacramento Valley Index of 6.8 million acre feet. Reclamation uses this conservative forecast to determine the water supply available from the Federal Central Valley Project (CVP). As a result of wetter conditions in Northern California and a "wet" water year type for the San Joaquin Valley, Reclamation is increasing water supply allocations both North and South of the Delta. The CVP water supply allocation is summarized in the table below.
Mid-Pacific Region | |||||||||
Probability of Exceedence Forecasts | Percent of Historical Average Sacramento Valley Index & Year Type | North of Delta | South of Delta | ||||||
Ag | M&I | R | WR | Ag | M&I | R | WR | ||
50% | 86% | 100 | 100 | 100 | 100 | 75 | 100 | 100 | 100 |
90% | 80% | 100 | 100 | 100 | 100 | 70 | 95 | 100 |
100 |
Recent Historical Average | 92 | 97 | 100 | 100 | 66 | 91 | 100 | 100 | |
Municipal and Industrial Allocations are based on historical deliveries.
Trinity River flow for the 2005 water year will be based on a normal year as defined in the Record of Decision.
Based upon April 1 conditions in the 90 percent forecast, Folsom Reservoir is expected to peak at about 940,000 acre-feet, elevation 462 feet by the end of May and the forecast for end of September will be about 530,000 acre-feet, elevation 420 feet. Unexpected operational requirements or variation from projected inflow may substantially alter these projections.
The CVP Cross Valley Canal Contractors' water supply allocation is also increasing to 70-percent of the contract supply. This water supply is dependent upon adequate capacity being available at the State Water Project Banks Pumping Plant to convey the water.
In the 90-percent exceedence forecast, the allocation for the CVP East Side Division contractors (Stanislaus River) is projected to be about 38,000 acre-feet. In the 50 percent exceedence forecast, the allocation is projected to be approximately 54,000 acre-feet.
The Friant Division deliveries for Water Year 2005 are projected to be 1.9 million acre-feet, or 126 percent of the historic water supply of 1.5 million acre-feet. The allocation for Friant Division contractors will be 100 percent of Class 1, Uncontrolled Season for Class 2, and Section 215 water. The projected Friant Division delivery of 1.9 million acre-feet is based on the Department of Water Resources 50 percent exceedence forecast. Through April 7, 2005, precipitation in the San Joaquin River watershed was 47.83 inches compared to 27.15 inches this time last year.
Throughout the precipitation season, updated information will be provided as conditions warrant. For additional information on the Water Year 2005 water supply, please contact the Public Affairs Office at 916-978-5100, TDD 916-978-5608. In the coming months, additional information will continue to be posted on the Mid-Pacific Region's website at www.usbr.gov/mp.
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The Bureau of Reclamation is a federal agency under the U.S. Department of the Interior and is the nation's largest wholesale water supplier and second largest producer of hydroelectric power. Our facilities also provide substantial flood control, recreation opportunities, and environmental benefits. Visit our website at https://www.usbr.gov and follow us on Twitter @USBR; Facebook @bureau.of.reclamation; LinkedIn @Bureau of Reclamation; Instagram @bureau_of_reclamation; and YouTube @reclamation.
Relevant Link:
April 2005 CVP Water Allocation to Increase By 5 to 10 percent
