Subjects Water Treatment

Laboratory Alkalinity test, ca. 1943

Making It Safe to Drink: Water History Video 2

Oak Lane Reservoir pipeline, 1904

The Water and Drainage History of Philadelphia: A seven-part course

William Penn balks at drinking the "mixed drink" offered him: Schuylkill water, mixed with pollution from the upstream sources named. Editorial cartoon by Fred Morgan, Philadelphia Inquirer, April 6, 1899. One of a series of cartoons drawn by Morgan protesting the state of the city's drinking water and trying to encourage the passage of legislation authorizing the construction of a water filtration system.

“A Decidedly Mixed Drink,” April 6, 1899

Belmont Filters construction 1903

Belmont Filters construction, 1903

Upper Roxborough filter beds

Upper Roxborough filter beds under construction, July 1902

McDonnell filter advertisement

McConnell Germ-Proof Filters ad

Two bottles of water from a river, one dark with pollution and one clear after filtration

Water Before and After Roxborough