Document: Statement of Joseph Jensen, Chairman, Board of Directors, The Metropolitan Water District of Southern California, 2-23-65, page 9Ninety per cent of the water used in San Diego County comes from the Colorado River. San Diego has no underground basins from which to secure any water. Its plight is, therefore, more serious than that of Arizona. Comparative 1964 statistics are as follows: Population Assessed Valuation San Diego County 1,125,000 $1,182,000,000 Arizona (except Mojave County) 1,546,000 2,000,500,000 San Diego County uses one-fourth of Metropolitan's Colorado River water. Even if California does receive 4.4 million acre feet of water, Metropolitan, having the lowest priorities, is reduced to 550,000 acre feet, so Sa...