ID#: 8660
This historic 1936 diagram, which had been digitally enhanced, illustrated the means by which polluted water might be transferred, from an elevated container, at one level, to a container on a lower level, and the method of preventing this type of contamination. The purpose of these images, and the requisite training, was focused on protecting water supplies from bacterial contamination due to incorrect disposal of waste, in order to prevent water-borne diseases. The descriptive information accompanying this drawing, referred to a governmental publication, which contained instructions describing how to correctly place and build such a device. The specific citation was, “Minnesota State Board of Health, Plumbing in Relation to Public Health, 1938, p. 20”.
High Resolution: Click here for hi-resolution image (47.59 MB)
Content Provider(s): CDC/ Minnesota Department of Health, R.N. Barr Library; Librarians Melissa Rethlefsen and Marie Jones
Creation Date: 1936
Photo Credit:
Links: Minnesota Health Department
Minnesota Health Department; R.N. Barr Library
CDC Organization
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.