Bottled at the source. Typical Analysis: pH7.7, TDS 84 mg/L, Silica 37 mg/, Calcium 6 mg/L, Magnesium 3 mg/L, Potassium 2 mg/L. 7.7 ph. Lava rock filtered. www.Hawaiianspringswater.com. 30% rPET post consumer recycled content. BPA free. A sustainable source. Bottled on Hawai'i Island.