Cross-connection locations must be categorized as what?

• A. Medium Hazard
• B. High Hazard or Low Hazard
• C. No Hazard
• D. Critical Hazard

Answer: (B)

Classifying cross-connection locations by the potential health impact of backflow is what this item tests. Cross-connections can allow contaminated water to flow back into the potable supply, so decisions about protection are based on risk. Sites that could introduce serious contaminants are labeled high-hazard, while those with lower risk are labeled low-hazard. This split guides the level of backflow protection and the frequency of inspection needed. Other terms like medium, no, or critical hazard aren’t used in standard cross-connection control schemes, so they don’t reflect how protection requirements are determined.