Plan for the Collection, Treatment and Disposal of Sewage, 1914

After nearly ten years of study, including first-hand inspection by City engineers of sewage treatment works in this country and in Europe, Philadelphia, in 1914, published a comprehensive Report on the Collection and Treatment of the Sewage of the City of Philadelphia. This plan included miles of intercepting sewers, designed to keep sewage out of the rivers and carry it to three proposed treatment plants.