Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857
From Creek To Sewer
Three reports on Philadelphia’s Sewage Treatment Project, 1911-1914
Half a Century of Clean Water
“Philadelphia Underground,” Jan. 29, 1961
State Street pipeline construction, 1904
Standard Philadelphia (B) Hydrant
Plan for the Collection, Purification and Disposal of the Sewage of the City of Philadelphia, 1912
