Fairmount Water Works: The Surprising History of an American Landmark
The Waffle: Water History Video 6
Birch’s Views of Philadelphia, 1800
Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857
Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
From Creek To Sewer
The Water and Drainage History of Philadelphia: A seven-part course
Half a Century of Clean Water
Grit Chamber, Essen, Germany
Sludge Presses for Grease Recovery, Bradford, England