Cresheim Aqueduct
Drainage area plan, early 19th century
Last gasp of the Schuylkill Interceptor, December 20, 1956
You would not have wanted to drink it: Philadelphia’s water supply in 1884
Plans and maps of the Pennypack Creek Watershed in Philadelphia
Ghosts of Water in Fairmount Park, Part II, with Adam Levine
Wingohocking Sewer across Penn St.
Philadelphia’s Sewer Problem
Sewer systems, City of Philadelphia, 1927 and 1929
Diagram from sewage treatment plan for Philadelphia, 1912