Upper San Gabriel Valley MWD

Water Supplier (Wholesale)
Monrovia, CA

Upper District is a special district formed by the region’s voters on December 8, 1959 to help sustain adequate water supplies in the rapidly-developing San Gabriel Valley. The District was incorporated shortly thereafter on January 7, 1960. On March 12, 1963, residents within Upper District’s service area voted to annex to the Metropolitan Water District of Southern California (MWD).