Satisfying Water Needs in Southern California

To economically and effectively satisfy water requirements in Southern California in the year 2020, water planners must not only predict future water demands and the availability of local and imported supplies but must also develop more information with respect to waste water reclamation and desalting. Alternative management objectives of water production and use are discussed, as are results of recent studies of urban per capita water use. The so-called existing water supplies are identified and possible changes in their quantity and quality are noted. Concepts and criteria in water resources planning are enumerated. Finally, the alternative methods of meeting the supplemental water demands of Southern California in 2020 are identified and the advantages and disadvantages of each are examined.