[kmjg88nvf8]

While that is the common story, I am not entirely convinced. It is presumably true that there are more controls for tap water. But those controls still only test a limited number of substances.

One story that goes around a lot is for example the claim that tap water contains a lot of hormones from all the contraceptive pills women take and then flush out of their body into the water system. That seems to not be controlled for. Not sure how serious the issue really is.

More controls also doesn't change the quality of water. It only detects bad water of some variants. If you had an excellent "mineral water" and an OK tap water, more controls wouldn't make the tap water any better.

Not saying you shouldn't drink the tap water. I drink it most of the time.

[ricardobeat]

If that's the case, the same would be true for most bottled water. The majority of mainstream brands are made from water from the same distribution system, just filtered some more and with added minerals.