Despite an appeal by Gov. Gavin Newsom for all Californians to voluntarily cut water use by 15%, Southern California has lagged in conservation efforts and even increased water consumption slightly in Los Angeles and San Diego, according to newly released data.

More than two months after Newsom stood by a depleted reservoir in San Luis Obispo County to make his plea, figures released Tuesday by the State Water Resources Control Board show that conservation efforts have varied widely from north to south.