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Sanitation
Map of Historic Dock Creek
Drainage area plan, early 19th century
Frankford Creek Watershed: A historical overview of the Philadelphia section
Drawing Dock Creek
Down Under, Part 2: Beaver Creek as it appears today
Leverington Avenue Stormwater Sewer
Dock Creek Sewer in 1849
Drainage and Sewerage Report, 1853
The Water and Drainage History of Philadelphia
Typical house drainage