The Sewage Disposal Problem of Los Angeles, California

The continued and rapid growth of Los Angeles, Calif., has required constant attention to the matter of sewage disposal, and especially since 1920 when the population took such an upward trend that plans were required for a Metropolitan System. Studies were then made for the collection and disposal of sewage from all the area to the north and west of the city. This paper describes how the outfall sewers required for this area have been planned to serve the Metropolitan Districts, regardless of political boundaries. Considerable data on the basis of design are given. The problem of ocean disposal of the effluent from the screening plants and the final disposal of the sewage screenings will require continued attention as the sewered population increases. In addition to sanitary sewage, the disposal of industrial waste is a problem to which reference is also made.