Plan of Pine Street Sewer, 1830
Typhoid bacteria diagram, 1905
Mill Creek Sewer under construction, 1883
“A Decidedly Mixed Drink,” April 6, 1899
‘Gillette, All By Himself, Gets Fine New Idea On Germ Slaying’
Outhouse over the Schuylkill near Pottstown
McConnell Germ-Proof Filters ad
Jar of raw sewage before treatment, 2000
Northeast Sewage Plant opening, 1951
Allegheny Avenue Sewer at Pier 126, 1918