Why is cross-connection control important?

Cross-connection control is fundamentally important because it serves to prevent contamination of potable (drinking) water. A cross-connection occurs when there is a link between the potable water supply and a source of contamination, such as wastewater or hazardous substances. If not properly controlled, backflow can happen, allowing harmful substances to enter the clean water supply. This can lead to significant health risks for consumers, as contaminated drinking water can cause various illnesses.

By implementing cross-connection control measures, such as backflow preventers and regular inspections, water utility operators ensure that drinking water remains safe and free from pollutants. This protection of public health is a primary goal of waterworks standards and regulations, thereby emphasizing the critical role of cross-connection control in maintaining the safety and quality of municipal water supplies.