The existence of life is closely related to water, which, due to its physical and chemical attributes, is a first-rate factor în carrying out many essential biochemical, physiological and ecological processes. Water used for drinking purposes în Moldova is a factor that accounts for up to 15-20% of cases of acute diarrheal diseases and viral hepatitis A, predominantly în rural areas, 20-25% of somatic diseases, în the case of dental fluorosis - 100%. Insufficient water leads to a poor state of health, body hygiene, dwelling and localities, which contributes to the spread of digestive diseases, skin disease.