The Sacramento Bee reported Thursday that the San Juan Water District board of directors approved the move this week.
The district serves more than 265,000 people in the Sacramento suburbs, including the communities of Citrus Heights, Orangevale and Folsom.
Most of its water comes from Folsom Reservoir, which the newspaper says has shrunk perilously low amid one of the driest winters in California history.
District General Manager Shauna Lorance says the call for conservation is not mandatory, but it could become so next month if the area doesn't get rain soon.
The district also is extending a request for a 20 percent cut in all water use that has been in place for months.
The drought is changing the size and flavor of California's fruit.
California's drought is having a devastating effect on its forests -- 20 million dead trees and counting, according aerial surveys. And the drought has a partner in crime -- the pine beetle.
Californians are exceeding Governor Jerry Brown's 25 percent conservation mandate.
(AP) - A group of nonprofit organizations and businesses has started a crowdfunding campaign to assist families affected by the state's drought and wildfires.
Extreme drought expanded in the Western U.S. and the drought is taking a toll on topsoil moisture in California.