Hallstein Water is a premium artesian water from the Austrian Alps. Hallstein is a low sodium alkaline water which is directly bottled from the aquifer 700 ft (214 m) below the earth's surface at the base of Austria's Dachstein mountain. Hallstein is completely untreated and uncompromised making it the purest drinking water on earth. 0% PFAS, No Microplastics. An ideal drinking water to maintain good health has an alkaline pH level between 8 and 9.5 - Hallstein Water's pH level is 8.3.