Topics Sanitation

Black-and-white image of a tray with three compartments and four small glass cylinders

Drain water from sludges obtained from sedimentation, septic and Emscher tanks

State Street pipeline construction

State Street pipeline construction, 1904

Belmont Filters construction 1903

Belmont Filters construction, 1903

Rudolph Hering

Rudolph Hering

1902 photo of Upper Roxborough Filter beds under construction

Upper Roxborough Filter Bed Construction, 1902