Fairmount Water Works, W.H. Bartlett, 1839
Race Bridge, Fairmount Water Works, 1834
Pipes, distribution mains, transmission mains, filtration plants, pumping stations, and all other appurtenances, either above or underground, that relate to providing drinking water to homes and businesses. In tandem with sewer systems, properly-designed water supply systems are what make densely-populated urban areas possible.