View of Fairmount Water Works, ca. 1827
Pipe Test, 1914
Northeast Sewage Plant opening, 1951
Southeast Sewage Treatment Works diagram, 1955
City officials tour new interceptor sewer, 1953
Pennypack Sewage Treatment Works, 1914
Outside Sprinkling Filters, Spring Garden Sewage Experiment Station, 1911
Devereaux Street Sewer, Philadelphia magazine, 1911
Bingham Street Sewer, East of Tacony Creek, 1921
Sewer construction, Rock Run, 1922