Time Periods 1900-1910

Torresdale Conduit work gang, 1906

Torresdale Conduit work gang, 12/18/1906

Belmont Filters construction 1903

Belmont Filters construction, 1903

Finished Upper Roxborough filters, 1903

Finished Upper Roxborough filters, 1903

Upper Roxborough filter beds

Upper Roxborough filter beds under construction, July 1902

A.C. Abbott, MD

A.C. Abbott, MD

Spring Garden water testing lab, 1901

Bureau of Water Spring Garden Testing Station, 1901

Two bottles of water from a river, one dark with pollution and one clear after filtration

Water Before and After Roxborough