Cohocksink Sewer System outlet at Laurel Street
Captain Sewer and Michael Nutter, 1998
Rudolph Hering
Outhouse over the Schuylkill near Pottstown
Jar of raw sewage before treatment, 2000
City officials tour new interceptor sewer, 1953
Swimmers at Pier 126, Delaware River, July 15, 1918
Allegheny Avenue Sewer at Pier 126, 1918
Pennypack Sewage Treatment Works, 1914
Outside Sprinkling Filters, Spring Garden Sewage Experiment Station, 1911