PURA water sources are among the purest waters and environments on the planet. Our sources are rare in quality and attributes, having pH levels above 7.2 to 8, calcium 50-80 mg/liter, magnesium 0.2 to 10 mg/liter and other important minerals to regulate the balance your body needs. Spring water is sourced in extremely remote, unpopulated, and unpolluted parts of the world. That makes it no less than superior in originality, which means the water is unspoiled by nitrate at 0 mg per liter. Because we cherish our waters, the purest on the planet. PURA SPRING WATER SOURCES Calcium: 64mg Potassium: 4.6mg PH Level: 7.7 Img: Iron Magnesium: 4.8