LOS ANGELES–(BUSINESS WIRE)–Longtime water professional and businessman Martin “Marty” Miller was unanimously elected today to be the next chair of the board of directors of the Metropolitan Water District of Southern California, the largest supplier of treated water in the country. Miller, who has represented the San Diego County Water Authority on Metropolitan’s 38-member board since 2021, will serve a two-year term beginning Jan. 1. He is the first representative from San Diego to lead Met