🌐EnglishEnglishDeutschFrançaisPortuguêsSvenskaالعربية中文日本語EntityQ361472· pop 7· linked from 315 articlescombined sewer networksewer which uses the same pipes for both stormwater and sanitary flowsConnectionssurface runoffEntityQ460173EntityCategoriesEnvironmental engineeringHydraulic engineeringSewerage infrastructureWater pollution