15 Cities with the Cleanest Tap Water in the US in 2017

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9. McMurray, PA

Contaminants detected above health guidelines: 5

Pennsylvania American Water Pittsburgh serves around 507,675 consumers daily. Even though it has 5 contaminants that are above health guidelines, it is still one of the cities with the cleanest water in the US. Those contaminants are bromidichloromethane, chloroform, chromium, dibromochloromethane, and trihalomethanes.

15 Cities with the Cleanest Tap Water in the US in 2017

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