 
		 
		 
		PWD Celebrates Black History Month
 
		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
 
		Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857
 
		Newspaper Clipping Scrapbooks of Frederick Graff Jr., Chief Engineer of the Philadelphia Water Department. Part 2: 1858-1871
 
		From Creek To Sewer
 
		Three reports on Philadelphia’s Sewage Treatment Project, 1911-1914
 
		The Sad History of Frankford Creek
 
		Emscher Tank Installation at Essen Nord, Germany
 
		Drain water from sludges obtained from sedimentation, septic and Emscher tanks
