[Hygienic evaluation of the effectiveness of the concept of improvement the water supply in the south-eastern region of the Republic of Tatarstan].

: In the paper there is presented the hygienic assessment of the effectiveness of the implementation of a program aimed at improving conditions of the water supply in the oil producing regions of the Republic of Tatarstan. As a result of realization of measures it was able to improve the quality of drinking water in terms of chemical safety and to reduce the risk to public health. For the present time the following factors: water quality of the water source, the mismatch of sanitary protective zone to requirements of sanitary laws and failure to comply with security measures on its territory, deterioration of water quality during transport and imperfection of laboratory control monitoring were shown to make the highest contribution to the disadvantage of centralized drinking water systems.