every drop of smartwater alkaline tastes pure and will leave you feeling refreshed. TEN Water is rich with electrolytes and sourced in the eastern U.S. from springs in the Great Appalachian Valley. TEN Alkaline Spring Water, with a pH of 10. Artesian water source, not a chemically enhanced municipal source. Bear the brunt of th... How many times have you simply felt fatigued? TEN comes from the foothills of the Blue Ridge Mountains and is naturally filtered by over 100 feet of quartzite rock before the company uses a patented pH process to guarantee a stable pH of 10.