A woman fills up a glass of tap water in this undated stock photo. STOCK PHOTO/Adobe Stock Some water systems decided to use chloramine -- a chemical compound formed by mixing chlorine and ammonia ...

Tap water is the most cost-efficient way to get ... are often the best choice when you're concerned about contamination.) Glass bottled waters are less common in the U.S., but there are some ...

Tump's pick to lead federal health agency wants to stop fluoridating water, a decision largely left up to the states.