Outhouse over the Schuylkill near Pottstown
Baldwin Locomotive Works
Pegg’s Run, Northern Liberties (Watson’s Annals)
Swimmers at Pier 126, Delaware River, July 15, 1918
Water Before and After Roxborough
Includes pollution caused by the direct dumping of factory or industrial wastes into rivers and streams, the dumping of industrial wastes and sewage through the city's sewer system, combined sewer overflows during wet weather, and polluted stormwater carried into streams by the city's stormwater drainage pipes.