What is a cross connection?

A cross connection is defined as a direct link between potable (drinking) water and non-potable (potentially contaminated) water sources. This connection poses a significant risk to public health, as it creates the opportunity for contaminants to enter the drinking water supply through backflow. Backflow can occur due to changes in pressure, allowing unsanitary water from non-potable sources to flow back into the clean water system.

Understanding cross connections is crucial for water operators, as preventing them is a key part of maintaining water quality and protecting public health. Regular inspections and proper design of plumbing systems are essential measures taken to avoid such situations. Recognizing the dangers associated with cross connections underscores the importance of adhering to regulations and best practices in water system management to ensure safe drinking water for all consumers.