Is it safe to drink tap water? This Fox News article asks Dr. Brynna Connor to weigh in on the risks of drinking unfiltered tap water. According to Connor, as long as it’s from a public water system and there are no boil-water advisories, it is generally safe.

In some cases, Dr. Connor explains, there could be risks, including lead poisoning, hepatitis, nitrate contamination, and fluoride exposure. These risks, Dr, Connor explains, are greater for infants, elderly folks, and those with weakened immune systems.

While these risks are serious, Connor emphasizes the U.S. public water regulations are better than anywhere in the world. Importantly however, these regulations only apply to public water systems, not privately owned wells, which can contain greater contaminants.

One solution is to get a home-filtration system. If you decide to do so, Dr. Cherilyn Davis says, ensure that the system you get only filters out chemicals that are unwanted, as not all chemicals in the water are unhealthy.