Agricultural Extension Service, South Dakota State College
A sanitary sewage disposal system is necessary to dispose of human excreta in rural homes where public sewers are not available. Sewage wastes, if not properly disposed of, are dangerous because they contain living bacteria and viruses, some of which are of disease producing types. For this reason, every effort should be made to prevent health problems and to dispose of all human wastes so that no opportunity will exist for contamination of water or food.
Service, Agricultural Extension, "Rural Sewage Disposal" (1961). SDSU Extension Circulars. 611.