The Carpathian region is distinguished by a high tourist flow and variety of hotels. The need for consumption of quality drinking water for tourists and local population is determined. Underground sources and wells constitute a water supply of accommodation facilities in this region. The issue of drinking water quality in the Carpathians remains poorly studied. It is necessary to realize the landscape, the content of heavy metals in the rocks, the differences in elevation, and tourist flow that can cause diffusion pollution. Sources of water supply in the tourist area of the Ukrainian Carpathians are the subject of the article. The sociological survey of the owners of local tourist accommodation facilities showed that 17.5% use surface sources, 48.8% use underground sources, 32.5% use mixed sources, 56.2% of respondents dispose of sewage disposal without proper water reclamation. We took samples of drinking water from sources, wells in this region and analyzed such indicators as pH, temperature, altitude, nitrates and nitrites, phosphates, ammonium, and mineralization. Sensafe's visual membrane tests for drinking water determined heavy metals such as Cu, Ni, Co, Zn, Cd, Hg, Fe in the water samples. The functional dependence of the content of heavy metals and the altitude zonation of drinking water sources for the region іs described by the equation y = -0,059ln(x) + 0,4219.