Jar of raw sewage before treatment, 2000
Swimmers at Pier 126, Delaware River, July 15, 1918
Allegheny Avenue Sewer at Pier 126, 1918
Sewer construction, Rock Run, 1922
Pipes, pumping stations, interceptors or intercepting sewers, outfalls, separate and combined sewers, sewage treatment plants, and any other infrastructure related to the collection and treatment of sewage from homes and businesses.