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Cross Connection Control & Backflow Prevention Manual

This document has been generated by the Indiana Department of Environmental Management (IDEM) to provide general guidelines regarding cross connection control and backflow prevention in the State of Indiana. This manual is intended to serve as an informative and useful introductory reference for backflow prevention, to be used in conjunction with reference texts for more detail. One extremely important text is the “Manual of Cross Connection Control, Tenth Edition” by the University of Southern California, 2009, available from the University of Southern California bookstore.

Included in this manual are the Indiana Administrative Codes governing cross connection control and backflow, including codes administered by the Indiana State Department of Health (ISDH) and IDEM, as well as the Indiana Plumbing Code. Guidelines for developing a cross connection control program are also included. A section explaining the legal liability associated with cross connections and backflow is additionally provided for reference. The technical aspects of some common cross connection control devices and backflow prevention devices are also presented. The mention of trade names and commercial products in this manual are for illustrative purposes, and does not constitute endorsement or specific recommendation of use.

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