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Photograph

Sketch of "Floating Cover Installation"

Date: 1937
Description: A sketch of an aspect of the waterworks. Text reads "Typical PFT "Downes" Floating Cover Installation."
Photograph

Sewage Treatment Plant

Date: 1944
Description: Sewage lagoon at a treatment site.
Photograph

Sketch of Sewage Treatment Plant

Date: 1937
Description: A planning sketch of the sewage disposal plant.
Photograph

Sketch of Sewage Treatment Plant

Date: 06 1937
Description: A planning sketch of the sewage treatment site. The sketch is signed "A Deimel" and dated "June 1936." The text at the bottom of the sketch reads "Sewage T...
Photograph

Sewage Treatment Plant Laboratory

Date: 
Description: The interior of the sewage treatment plant laboratory. A microscope and many glass beakers are sitting on the counter.
Photograph

Scientist in Sewage Treatment Plant Laboratory

Date: 
Description: A scientist leans over a microscope in the sewage treatment plant laboratory. Glass beakers and other tools and equipment are sitting on the counter.

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