Maureen A. Stapleton, General Manager

4677 Overland Avenue, San Diego, CA 92123
(858) 522-6600

WUWC-SanDiego1The San Diego County Water Authority’s mission is to ensure the San Diego region has a safe and reliable water supply that can support its $206 billion annual economy and the quality of life of more than 3.1 million residents. Governed by a 35-member Board of Directors representing 24 member agencies, the Water Authority serves as a wholesale supplier of water imported from the Colorado River and Northern California. The Water Authority purchases water from the Metropolitan Water District of Southern California, and also obtains water via long-term Colorado River water conservation and transfer agreements with the Imperial Irrigation District and the Coachella Valley Water District. Starting in late 2015, the Water Authority also will purchase locally produced desalinated seawater from the largest seawater desalination plant in the Western Hemisphere to further diversify and improve the reliability of the region’s water supply. 

WUWC-SanDiego3Over the last 12 years, the Water Authority has invested more than $2 billion in large-scale infrastructure projects—including the nation’s tallest dam raise, at San Vicente Reservoir—to further enhance the operational and emergency capabilities of the region’s water system.  Today, the Water Authority serves 97 percent of the region's population and operates and maintains an aqueduct delivery system consisting of approximately 300 miles of large-diameter pipeline, 1,600 aqueduct-related structures and more than 100 flow-control facilities, plus a surface water reservoir, 100 MGD water treatment plant and hydroelectric facilities that in total can generate up to 44.5 megawatts of power. For more information, visit