America's premium water since 1871. Safety sealed and ozonated for your protection. NSF certified. Consider the source. Naturally Occurring in Parts Per Million: Calcium (74.0); Magnesium (7.3); Potassium (1.0); Zinc (0.1); Total Dissolved Solids (220); 7.8 pH. Bottled at the original spring source, Garland County, Arkansas.