Cross Connection Practice Exam

What is the hazard assessment and minimum level of protection required for a swimming pool?

1. High Hazard/ Reduced Pressure Assembly

2. Moderate Hazard/ Double Check Valve Assembly

3. Low Hazard/ Air Gap

4. Extreme Hazard/ Pressure Breaker

The correct answer is: Moderate Hazard/ Double Check Valve Assembly

The correct answer relates to the nature of the hazards posed by a swimming pool and the specific requirements for maintaining safe water quality and public health. Swimming pools can introduce concerns such as chemical runoff, pathogens, and contamination from swimmers. These factors classify the swimming pool as a moderate hazard. A double check valve assembly is designed to protect against backflow, which can occur when there’s a drop in water pressure that allows contaminants to enter the potable water supply. It provides an adequate level of protection against the moderate risk of contamination that may arise from swimming pool operations and maintenance activities. The other options suggest varying levels of hazard and corresponding protective measures. For example, reduced pressure assemblies are typically used for high hazards, while air gaps are an even higher standard used for the most critical protection. Likewise, pressure breakers are generally utilized in extreme hazard scenarios, making them unsuitable for the moderate hazard classification of swimming pools. Hence, the appropriate measure for a scenario involving a swimming pool is indeed the double check valve assembly, aligning properly with the level of hazard presented.