Residential Water Use in the Bay Area Under Emergency Regulations

Starting in January 2014, Governor Brown declared a State of Emergency, due to persistent drought conditions. Under the emergency declaration, all urban water suppliers must report monthly water usage and were encouraged to conserve water by 20%, compared to a 2013 baseline. On April 1, 2015, the State of Emergency was formally continued and a mandatory 25% reduction was imposed.

Charts presented below show per capita residential water use (gallons) and percent reduction, compared to the 2013 baseline, and are sorted by per capita use of the most recently reported month. Data will be updated upon new release by the State Water Board.

View per capita residential use (gallons) from Sep 2014 to June 2015, or by % reduction, compared to 2013

This graphic was adapted from Carlo Zapponi's site. For more information contact Ian Wren at

* indicates ownership by the California Water Service Company
** part of the Golden State Water Company