Zone 7 is responsible for providing flood control and water resources to the Livermore-Amador Valley. The district was created by the California Legislature in 1947 and Zone 7 was formed by a vote of local residents in 1957. Of Alameda County's 10 active zones, only Zone 7 has its own elected seven-member board of directors. Zone 7 sells treated water primarily to four retail water agencies - the California Water Service Company, the cities of Livermore and Pleasanton, and the Dublin San Ramon Services District. It also sells untreated water directly to agricultural and other customers.
