More than a week after the Metropolitan Water District of Southern California announced its harshest-ever water restrictions for millions of residents across the region, several of the affected water agencies are offering a preview of how life will change throughout Southland when the rules kick in June 1.

The restrictions target areas that rely heavily or entirely on the State Water Project, a Northern California water supply that officials say is dangerously low after the state’s driest-ever start to the year.