The problems of drinking water safety are relevant for Ukraine for many years, and their acuity not only does not decrease but even increases in recent years. As a result of the hostilities in the Donbass, a critical situation has arisen with the drinking water provision for the population because of the pump stations that supply water from the Seversky Donets-Donbass canal damaged and also there are partial destructions of filtering stations after shelling. For most of the water supply sources of Donbass (surface water, wells, artesian wells, mine waters), the significant exceedance of turbidity, color, TDS, hardness, nitrates, heavy metals, organic substances, and microbiological contaminants are characteristic. To solve the problem of population providing with safe and high-quality drinking water at facilities with missing or damaged centralized water supply, proposed using of special mobile drinking water purification systems, mounted on the basis of standard transport 3, 20 and 40-foot Ecosoft KFPMOUF series containers with productivity from 4 to 500 m³/hour. In cases where centralized water supply is present, but there are doubts about the quality of tap water, it is proposed to use reverse osmosis systems that connect to the water source and ensure the absolute safety of the purified water.