The water delivered to Santa Fe Irrigation District customers is obtained from a variety of sources. To learn about those sources, visit our Water Sources
page. Approximately 65 percent of the potable water is obtained from imported water sources from our wholesalers, the San Diego County Water Authority (SDCWA) and the Metropolitan Water District of Southern California (MWD). MWD imports its water from two sources: a 242-mile-long aqueduct which transports Colorado River water from Lake Havasu to Southern California and a 444-mile-long aqueduct that transports water from the Sacramento-San Joaquin Delta in Northern California to Lake Skinner located in Riverside Country.