Topics Water Supply

Black-and-white image showing several cubic measurements of various types

Volume of Sludge from 1,000,000 Gallons of Sewage

Black-and-white photo of a man standing in a long trench

Sludge Drying Beds, Essen Nord, Germany

Black-and-white image of two cylinders on a white surface

Effects of Expansion of Gas Bubbles in Enscher Sludge Shown in Right-Hand Cylinder

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

The Water Works in Centre Square, Philadelphia

International Exhibition situation plan, 1876

Centennial Exhibition situation plan, 1876

PWD water tech at the Philly Home Show, 1960

PWD water tech at the Philly Home Show, 1960 (detail)

Gillette Schuylkill mud cartoon

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

Torresdale Conduit work gang, 1906

Torresdale Conduit work gang, 12/18/1906

Cumberland Street pipeline, 1907

Bureau of Water, Cumberland, west of 13th Street, pipe line, 1907