Program Information The Municipal Water District of Orange County (MWDOC) purchases approximately 70.2 billion gallons of imported water per year ??? from northern California and the Colorado River ??? through the Metropolitan Water District of Southern California (Metropolitan). MWDOC delivers this water to its 28 member agencies, who in turn, provide retail water services to the public. MWDOC has created award-winning programs that target all water users. Through an innovative, multi-agency approach, MWDOC develops, implements, and evaluates water use efficiency programs that provide multiple benefits. Programs include educational classes, performance reporting, water use surveys and consumer incentives for water-efficient devices. Through the development, implementation and evaluation of these programs, Orange County saves more than 17.1 billion gallons of water each yea