During a boil water advisory, what should not be assumed about water safety?

During a boil water advisory, it is essential to understand that the appearance of water can be misleading in terms of safety. Just because the water looks clear does not guarantee that it is free from harmful microorganisms, contaminants, or pathogens that could pose health risks if ingested. Water can be visibly clear yet still contain bacteria, viruses, or chemical pollutants that are not detectable through sight alone.

This makes it crucial to follow the advisory's guidelines, which typically state that the water must be boiled before consumption to eradicate any potential harmful agents. Thus, assuming that clear water is safe can lead to serious health problems. On the other hand, boiled water or instructed practices regarding hygiene, such as proper dishwashing methods, are more reliable in ensuring safety during such advisories.