11. New York City, NY
Contaminants detected above health guidelines: 6
Now and then we hear that municipal water in the US is the best in New York City. But we see that is certainly not the case, even while New York is among the top 15 cities with the cleanest tap water in the US. Nevertheless, there are many harmful chemicals in the water of New York, and six of those exceeding health guidelines are bromidichloromethane, chloroform, chromium, dichloroacetic acid, trihalomethanes and trichloroacetic acid.
Up next on our list of cities with the cleanest tap water in the US in 2017, we have two cities that share the 9th place.