Subjects Reservoir

A large natural or man-made lake used as a water supply.

Fairmount Water Works: The Surprising History of an American Landmark

Philadelphia drinking water 90+ years ago

Water Bureau Newspaper Scrapbook, 1942-1952

Birkinbine Schuylkill Hydrographical Survey 1861-66

Two reports on the state of the Schuylkill River, 1867