Mountain Valley Water Spring Water is pristine, naturally high pH water, containing a nice selection of minerals like calcium carbonate, iron, manganese and even a trace amount of fluoride. Devotees of our water claim it not only tastes refreshing, but it has a certain "mouth feel" other waters do not possess. Many teams of geologists have tested the spring source over the years and have determined that the water takes up to 3,500 years for the rain falling on Cedar Mountain to travel to the deep aquifer and return as Mountain Valley Spring Water. The filtering of this ancient water and the minerals it collects along the way make it different from many other bottled water sources. The naturally high pH of Mountain Valley mineral water is especially prized by knowledgeable, natural and organic consumers as it is believed to help offset the high acid diet of modern man. Mountain Valley Spring Water in glass bottles is sought out by people who have become sensitive to pervasive man-made chemicals in the environment. Mountain Valley is dedicated to ensuring our bottles, caps, and labels remain safe for everyone. Mountain Valley Spring Water is certified Kosher and Pareve by the Orthodox Union and we stand fast to its principals.