A cross connection is any physical arrangement where a public water supply is connected, directly or indirectly, with any contaminated liquid, or other waste of unknown or unsafe quality that could impart a contaminant into the drinking water as a result of backflow caused by backpressure or backsiphonage.

Indiana law and administrative code require that plumbing systems be configured to either prevent the possibility of a backsiphonage (via air gap) or to install a proper backflow protection device in the system to protect the water system.

The Columbus City Utilities has the duty to ensure that the proper devices are installed and that they are being tested at the prescribed intervals.

To aid in this, the CCU has contracted with Aqua Backflow, who assists in contacting device holders and recording test results in a central database which we can make accessible to State regulators upon request.




Aqua Backflow 

American Backflow Association