When classifying cross-connections, a 'high-hazard' connection involves which type of substance?
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ASubstances that change only the color or odor of water
BSubstances that are toxic, pathogenic, or otherwise harmful to human health
CSubstances that increase water hardness
DSubstances that decrease water pressure
✓ Correct answer: B. Substances that are toxic, pathogenic, or otherwise harmful to human healthA high-hazard cross-connection involves a substance that is toxic, pathogenic, or otherwise dangerous to health (e.g., chemicals, sewage). High-hazard connections require a higher degree of protection such as an air gap or reduced pressure principle (RP) assembly.
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