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Description:This historic diagram depicted an example of a hospital’s unsatisfactory plumbing configuration. This cross-section of the building, and its water intake and outflow points, showed a hazardous cross-connection between the potable water supplies and the sewage waste water disposal system. The light-green lines represented water intake. The red lines represented waste water disposal lines running into the building sewer line at the bottom of the diagram.
Published in 1934, this was one of a series of instructional drawings used by the Minnesota Board of Health to train its state public health workers. The purpose of this and other like images, and the training was focused on protecting potable water supplies from bacterial contamination.
High Resolution: Click here for hi-resolution image (17.86 MB)
Content Providers(s):CDC/ Minnesota Department of Health, R.N. Barr Library; Librarians Melissa Rethlefsen and Marie Jones
Creation Date:1934
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.