ID#: 8659
Caption: This historic 1936 diagram, which had been digitally enhanced, illustrated in cross-section, the plumbing interconnections between a municipal water circuit, and adjacent raw water supplies, in the water pipes of an industrial plant. 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 these images, and the accompanying training, was focused on protecting water supplies from bacterial contamination due to incorrect disposal of waste, such as sewage, in order to prevent water-borne diseases.
High Resolution: Click here for hi-resolution image (49.65 MB)
Content Providers(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.