Mountain Valley® Sparkling Water. Since 1871. America's Premium Water™. National headquarters. Hot springs national park. Arkansas. Bottled at the original spring source, Garland County, Arkansas. NSF certified. This bottle made with recycled glass. Naturally occurring in parts per million: Calcium - 74.0. Magnesium - 7.3. Potassium - 1.0. Total dissolved solids - 220. Contents: Mountain Valley spring water with carbonation (CO2) added. 800.643.1501. We gladly provide additional consumer information relating to water quality at www.mountainvalleyspring.com.