1826 Report of the Committee of Delaware County on the subject of Manufactories, Unimproved Mill Seats, etc. in said county.
1882 Report from the Army Corps of Engineers on Navigation in Frankford Creek, Philadelphia
Typhoid Fever and sewage tainted drinking water: An 1889 report from the Philadelphia Board of Health
Kensington Water Supply in 1883
Requiem for a stream: Adams Run in Oak Lane
Leverington Avenue Stormwater Sewer
Filling Low Land: A Story of Ash-Dumping in the Wingohocking Creek Watershed
Delaware River Harbor Police Report, 1884
Schuylkill River Harbor Police Report, 1884
Dock Creek Sewer in 1849: A report on its condition made to City Councils