Pegg’s Run, Northern Liberties (Watson’s Annals)
PWD’s Lance Butler with an invasive flathead catfish
Joe Perillo with a large Schuylkill striper in 2015
Pipe Test, 1914
Wastewater Treatment Process diagram
Jar of raw sewage before treatment, 2000
Southeast Sewage Treatment Works diagram, 1955
Swimmers at Pier 126, Delaware River, July 15, 1918
Allegheny Avenue Sewer at Pier 126, 1918
Plan for the Collection, Treatment and Disposal of Sewage, 1914