Rivers & Creeks Delaware River

Black-and-white line graph showing two jagged lines on a grid

Diagram Showing Decreased Amount of Dissolved Oxygen in Delaware River, 1913

Black-and-white image of a table with numbers in columns

Bacteria in Delaware River, Torresdale Filters, 1913

Water, Water Everywhere – Philadelphia Record, 1937-03-14

Black-and-white image of the title page of a government report

Perkiomen Water Supply Surveys, 1866

Birkinbine Schuylkill Hydrographical Survey 1861-66

Schuylkill River Hydrographical Survey 1861-66 by H. P. M. Birkinbine

International Exhibition situation plan, 1876

Centennial Exhibition situation plan, 1876

Gillette Schuylkill mud cartoon

‘Gillette, All By Himself, Gets Fine New Idea On Germ Slaying’

Outhouse over Schuylkill near Pottstown

Outhouse over the Schuylkill near Pottstown

Northern Liberties and Spring Garden Water Works

Northern Liberties and Spring Garden Water Works

DeLaval Beauty Shots 6

Electric Pump Installations at Lardner’s Point Pumping Station

Fairmount

Fairmount Water Works, about 1860

Laying the Main (2004.057.0074.007)

Commencement of laying the main on the East side of the River, 1871