Historic ‘Level 1’ Shortage Declared for Lake Mead, Though San Diego Still Has Reliable Supply

Federal officials on Monday issued the first-ever “Level 1” shortage declaration for the massive reservoir of Lake Mead on the Colorado River, triggering major water cuts for Arizona, Nevada and Mexico.

The cuts for water users downstream from Hoover Dam will begin in October, the U.S. Bureau of Reclamation said in a statement.