Whitfield Reservoir is an open water storage facility constructed by the Alameda County Water District. The facility capacity is 21 million gallons and was completed in 1987. In 1990 the Alameda County Water District began to plan a new water treatment plant (Water Treatment Plant Number 2), which would eventually deliver treated potable water to the Whitfield Reservoir.
References
Whitfield Reservoir Wikipedia(Text) CC BY-SA