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Description:Typical of water and sewer line crossings, this historic 1939 photograph revealed structural details that can still be found in any contemporary Minnesotan municipality. A leak in the water main close to the joint in a sewer pipe makes contamination of the water supply possible. This is especially true when a vacuum occurs in the water pipe.
The descriptive information accompanying the photograph referred to a governmental publication dealing with this topic. The specific citation was, “Minnesota Department of Health, Division of Sanitation, Manual of Water Supply Sanitation, 1941, Section 12, p. 22”. This was one of a series of instructional images that were used by the Minnesota Board of Health, in order to train its state public health workers. The purpose of the images and the associated training was focused on the orderly disposal of waste, such as sewage, in order to prevent contamination of potable water supplies.
High Resolution: Click here for hi-resolution image (11.27 MB)
Content Providers(s):CDC/ Minnesota Department of Health, R.N. Barr Library; Librarians Melissa Rethlefsen and Marie Jones
Creation Date:1939
Photo Credit:
Links:Minnesota Health Department
Minnesota Health Department; R.N. Barr Library
CDC – Nat. Center for Infectious Diseases; Water-Related Diseases
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.