What is a cross connection?

A cross connection is a connection between a drinking water supply and a potential source of contamination. This can occur when there is a direct or indirect link between the potable water supply and a non-potable source, such as a sewer line, irrigation system, or industrial process.

Cross connections pose a significant health risk as contaminants can enter the drinking water supply and potentially cause illness or disease. In order to prevent this from happening, backflow prevention devices are often installed at cross connections to ensure that water flows in one direction only, away from any potential contaminants.

Regular inspections and maintenance of backflow prevention devices are essential to ensure they are functioning properly and protecting the integrity of the drinking water supply. Additionally, cross connection control programs and regulations are in place to help identify and eliminate potential cross connections in order to safeguard public health.