Green planet is owned by Keystone Water Company. Keystone Water Company owns a wonderful natural artesian spring surrounded by 265 untouched acres of nature. Our spring has been touted by many water and conservation specialists as one of the most natural, well-balance springs in the United States. It has natural occurring minerals such as, magnesium, calcium and potassium which give it a low TDS (30-35 Total Dissolved Solids per million) and a pure, refreshing, easy drinking taste. This natural artesian spring has a PH of 6.5-7.4 which is right where your body needs to be for rehydrating and the springs natural electrolytes help with replenishment.