Californians are still conserving substantial amounts of water even as Gov. Jerry Brown appears ready to rescind or relax his drought declaration. The State Water Resources Board announced Tuesday that urban Californians reduced water usage by 25.1 percent in February, compared with the state’s baseline year of 2013. The February conservation results were substantially better than a year ago, when mandatory restrictions were in place for much of California but the savings rate was only 11.9 percent.