You would not have wanted to drink it: Philadelphia’s water supply in 1884
Newspaper Clipping Scrapbooks of Frederic Graff Jr.,Chief Engineer of the Philadelphia Water Department: Part 1, 1854-1857
Board of Health Newspaper Clipping Scrapbooks at City Archives of Philadelphia, 1891-1908
CITIZENS’ BUSINESS: 1939-1946
Petition of manufacturers along the Schuylkill River in Philadelphia for a new upstream water supply, 1868
State of the Schuylkill River in 1876: Sewage pollution and possible remedies
Half a Century of Clean Water: The Clean Water Act, 1972-2022
State Street pipeline construction, 1904
Upper Roxborough filter beds under construction, July 1902
Outhouse over the Schuylkill near Pottstown