Here’s what a world renowned hydrogeologist has to say about the rarity of Tourmaline Spring

“Tourmaline Spring in the state of Maine is a rare high-elevation source of primary spring water that is an anomaly amongst all the known prolific spring water sources on the planet. It bubbles out of the ground as a cold spring (46 degrees), with a remarkably low TDS (59), in a complex, highly, mineralized granite[…]