The conservation rate was 27 percent in September, compared to the same month in 2013, for about two-million water users in Sacramento, Placer, El Dorado, Yolo and Sutter counties.
Amy Talbot with the Regional Water Authority says from June through August, the conservation rate was 36 percent compared to the same three-month period in 2013.
"This level of conservation saved a significant amount of water that will help carry us through the fall and winter months when conservation is typically more challenging," says Talbot.
Talbot says since summer water use is typically double that of winter use, and meeting the 25 percent state conservation mandate will require more indoor conservation.
"That's where the real work is going to come in," says Talbot.
The state mandate is in effect through the end of February 2016.
"Especially with climate change, water demand and water supply sources, conservation will only have a larger role than it does currently," says Talbot.