ID#: 8629
This historic diagram, which had been digitally enhanced, depicted an example of an unsatisfactory plumbing configuration for a typical residence. This cross-section of the building, revealing its water intake and outflow points, showed a hazardous cross-connection between water supplies, and the sewage disposal system. The light-green lines represented water intake. The red lines represented wastewater disposal lines, running into the building drain 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 the state's public health workers. The focus of this image, and the training, was on protecting potable water supplies from bacterial contamination.
High Resolution: Click here for hi-resolution image (20.16 MB)
Content Provider(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 Organization
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Copyright Restrictions: None - This image is in the public domain and thus free of any copyright restrictions.