Items

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

Diagram from sewage treatment plan for Philadelphia, 1912

Black-and-white photo of industrial tank installation with smokestacks and factories in the background

Emscher Tank Installation at Essen Nord, Germany

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 showing a man standing in a large concrete half-pipe

Thomas Run sewer outlet during construction

Black-and-white image showing sewer outlet, retaining walls and body of water

Cohocksink Sewer System outlet at Laurel Street

The Pennypack Sewage Treatment Works in 1914

Pennypack Sewage Treatment Works, 1914