Full allocation for California's State Water Project
5/10/2023 12:00:00 AM
CATEGORIES:
Relief, Response & Restrictions
Water Supply & Quality
AFFECTED AREAS:
Alameda County, CA
Butte County, CA
Fresno County, CA
Kern County, CA
Kings County, CA
Los Angeles County, CA
Napa County, CA
Orange County, CA
Plumas County, CA
Riverside County, CA
San Bernardino County, CA
San Diego County, CA
San Luis Obispo County, CA
Santa Barbara County, CA
Santa Clara County, CA
Solano County, CA
Yuba City, CA
Tulare County, CA
Ventura County, CA
Start Date: 12/1/2022
- End Date: 12/31/2023
The fifth snow survey of the season at Phillips Station revealed a snow depth of 59 inches and a snow water equivalent of 30 inches, which is 241 percent of average for May 1. Electronic readings from the 130 snow sensors across California indicate a statewide snow water equivalent of 49.2 inches, or 254% of average for the date. Overall, the statewide snowpack melted more slowly than usual during April as temperatures were below average early in the month, and there was more cloud cover. Temperatures increased in the latter part of April.
California Department of Water Resources (Sacramento), May 1, 2023
The Department of Water Resources announced that State Water Project deliveries are expected to be 100% of requested water supplies for the first time since 2006. The March estimate was 75% of requested supplies. Water from the SWP is delivered to 29 public water agencies serving 27 million Californians and 750,000 acres of farmland.
California Department of Water Resources (Sacramento), April 20, 2023
The State Water Project will deliver 75% of requested supplies as winter storms brought tremendous amounts of snow this winter.
Los Angeles Times, March 24, 2023
The California Department of Water Resources announced an expected water allocation of 35% from the State Water Project, up from 30% in January.
The Associated Press (New York), Feb 22, 2023
The series of storms that brought heavy rain and snow to California have partially filled reservoirs, allowing the State Water Project to offer 30% of requested water supplies to 29 public water agencies that serve 27 million Californians. The initial allocation in December was just 5%.
California typically receives half its rain and snow by the end of January. Water managers will reassess conditions monthly during the winter and spring, and also consider snowpack data and runoff forecasts from February on.
California Department of Water Resources (Sacramento)
Jan 26, 2023
The Department of Water Resources announced an initial State Water Project allocation of 5 percent of requested supplies for 2023. The SWP provides water to 29 public water agencies that serve 27 million Californians. Water allocations are frequently low early in the wet season due to uncertainty in hydrologic forecasting. In addition, the expectation is for a fourth dry year and continued drought in California. Lake Oroville, the largest reservoir in the State Water Project system, is just 55% of average for this time of year. Oroville ended Water Year 2022 at about 400,000 acre-feet higher than the previous year.
For the 2022 Water Year, the initial allocation was 0% on Dec. 1, 2021, with limited water designated only for any unmet human health and safety needs. Last year’s final allocation was 5 percent plus unmet health and safety needs. Four of the 29 State Water Contractors ultimately requested and received additional health and safety water supply.
California Department of Water Resources (Sacramento, Calif.), Dec 1, 2022
Sources
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California Department of Water Resources
.
State Water Project to Further Increase Water Supply Allocation - California Department of Water Resources (CA).
Thursday, April 20, 2023
https://water.ca.gov/News/News-Releases/2023/April-23/State-Water-Project-to-Further-Increase-Water-Supply-Allocation.
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California Department of Water Resources
.
Recent Storms Allow State Water Project to Increase Expected 2023 Deliveries to 1.27 Million Acre-Feet of Water - California Department of Water Resources (CA).
Thursday, January 26, 2023
https://water.ca.gov/News/News-Releases/2023/Jan-23/Recent-Storms-Allow-State-Water-Project-to-Increase-Expected-2023-Deliveries.
-
Los Angeles Times
.
Newsom rolls back California drought restrictions after remarkably wet winter - Los Angeles Times (CA).
Friday, March 24, 2023
https://www.latimes.com/california/story/2023-03-24/newsom-rolls-back-california-drought-restrictions.
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California Department of Water Resources
.
DWR Conducts May 1 Snow Survey to Continue to Collect Data on Spring Runoff - California Department of Water Resources (CA).
Monday, May 1, 2023
https://water.ca.gov/News/News-Releases/2023/May-2023/May-2023-Snow-Survey.
-
California Department of Water Resources
.
DWR Announces Initial State Water Project Allocation of 5 percent, Outlines Actions for a Possible Fourth Dry Year - California Department of Water Resources (CA).
Thursday, December 1, 2022
https://water.ca.gov/News/News-Releases/2022/Dec-22/DWR-Announces-Initial-State-Water-Project-Allocation-of-5-percent.
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Associated Press News
.
California storms improve initial federal water allocations - Associated Press News (NY).
Wednesday, February 22, 2023
https://apnews.com/article/california-business-droughts-1476e345dca54070f7fc1da5aa98f38c.