Volume of Sludge from 1,000,000 Gallons of Sewage
Finished Upper Roxborough filters, 1903
Pipe Test, 1914
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.