Initial state water delivery allocations set at just 10 percent of requested supplies

Lake Oroville at 3,400,147 acre-feet (AF) on Tuesday, May 20, 2025 in Butte County, Calif. The lake is at 99 percent of total capacity. (Nick Shockey/California Department of Water Resources via Bay City News)

The year’s first allocation from California’s massive water storage and delivery system has been set at just 10 percent of requested supplies, officials with the state Department of Water Resources announced Monday.

DWR operates the State Water Project, which delivers water to 29 public water agencies that serve an estimated 27 million people and 750,000 acres of farmland throughout the state.

DWR is required to set its initial annual water allocation by Dec. 1 every year and the size of the allocation is typically fairly small at first.

As the rainy season develops, however, if the state sees an increase in rain and snowfall totals, water allocations could potentially increase every month, with final allotments announced in May or June.

For example, last year the initial allocation was just 5 percent of requested supplies but eventually increased to 50 percent.

“Recent history has shown us that anything can happen during a California winter, so it’s important that our early season allocation for the State Water Project is conservative,” DWR Director Karla Nemeth said in a news release Monday.

Currently, the state seems to be in pretty good shape, with statewide reservoir storage levels at 114 percent of average, according to DWR officials.

Lake Oroville, the largest reservoir, is at 100 percent of average for this time of year, a bit above where it was at last December.

Historical data on SWP allocations is available on CDWR’s website.

The post Initial state water delivery allocations set at just 10 percent of requested supplies appeared first on Local News Matters.

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