Which of the following connections would typically be classified as a LOW-hazard cross-connection?

Which of the following connections would

Multiple choice — select the best answer

AA connection to a swimming pool with algaecide treatment
BA fire suppression system with antifreeze additive
CA commercial car wash connected to the potable supply
DA simple garden hose submerged in a bucket of clean, untreated water

✓ Correct answer: D. A simple garden hose submerged in a bucket of clean, untreated water A garden hose submerged in clean (non-chemical) water represents a low-hazard (pollution) cross-connection since the water itself poses minimal health risk, though back-siphonage protection is still required. The other options involve chemicals that elevate the hazard to high.

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Topic: Backflow & Cross-Connection

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Which of the following connections would typically be classified as a LOW-hazard cross-connection?

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