 
		 
		 
		Water Bureau Newspaper Scrapbook, 1942-1952
 
		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
 
		Diagram from sewage treatment plan for Philadelphia, 1912
 
		Southwest Sewage Treatment Plant under construction, 1949
 
		Frankford Creek Watershed: A historical overview of the Philadelphia section
 
		Frankford Creek Watershed Historical Timeline
 
		Down Under III: A walk in the Dobson’s Run Storm Relief Sewer, June 15, 2010
 
		Requiem for a stream: A brief history of Dobson’s Run
