What is a "cross-connection control plan" in a water system?

A cross-connection control plan is a vital component of a water system designed specifically to protect the quality of potable (drinking) water from contamination. This strategy focuses on identifying and managing potential cross-connections—places where non-potable water could unintentionally mix with potable water supplies, leading to potential health hazards.

The plan typically includes measures such as identifying at-risk locations within the distribution system, implementing physical safeguards like backflow preventers, and training personnel on the importance of maintaining separation between potable and non-potable sources. By actively managing cross-connections, water systems can prevent contaminants from entering the drinking water supply, ensuring compliance with health regulations and safeguarding public health.

The other options, while relevant to aspects of water system management, do not directly pertain to the primary objective of a cross-connection control plan, which is to ensure the safety and quality of drinking water.