The San Diego County Water Authority voted Thursday to activate Level 1 of its six-part Water Shortage Contingency Plan, which asks San Diegans to voluntarily conserve 10% of their water use.

The vote from the agency’s 36-member Board of Directors came after Gov. Gavin Newsom extended a drought emergency declaration statewide last week as the western U.S. entered its third year of drought.

The declaration — activated twice before in 2007 and 2014, required water suppliers to implement their water shortage contingency plans, however, the Water Authority said it was already planning to implement its plan before the declaration was extended.

As part of Level 1, San Diegans will be asked to voluntarily conserve up to 10% of their water use. The Water Authority will also step up its outreach and education efforts to promote conservation.