Items

Historic resources from our archives - images, maps, documents, and more.

Photo of four men standing on the banks of the Schuylkill River on the last day of the Schuylkill Interceptor, December 20, 1956

Last gasp of the Schuylkill Interceptor, December 20, 1956

Black-and-white photo of a man standing in a long trench

Sludge Drying Beds, Essen Nord, Germany

Black-and-white photograph of a man in a hat standing in a brick trench

Grit Chamber, Essen, Germany

Black-and-white image of two cylinders on a white surface

Effects of Expansion of Gas Bubbles in Enscher Sludge Shown in Right-Hand Cylinder

Black-and-white photo of heavy machinery

Sludge Presses for Grease Recovery, Bradford, England

Black-and-white image of a tray with three compartments and four small glass cylinders

Drain water from sludges obtained from sedimentation, septic and Emscher tanks

Black-and-white image of a brick sewer outlet that drains into a creek with trees and a hill behind it

Thomas Run sewer outlet at Cobbs Creek

Black-and-white image of workers in a pit with a sewer opening behind them and text

Frankford Creek: Sad History of an Urban Stream title page

Outhouse over Schuylkill near Pottstown

Outhouse over the Schuylkill near Pottstown

Swimmers at Pier 126, Delaware River July 15, 1918

Swimmers at Pier 126, Delaware River, July 15, 1918

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

Water Before and After Roxborough