Drinking Water Quality: Temporary Deviations from Hygienic Standards

Introduction: Current legislation permits a phased achievement of drinking water quality standards by making decisions on temporary deviations from hygienic for the period design, construction, and/or upgrade supply facilities. Objective: To substantiate mechanism coordinating concentrations certain chemicals in implementing measures improvement. Materials and methods: We applied methods sanitary epidemiological expert examination assessment method system analysis to review study current regulations, results laboratory testing centralized cold systems 2011–2019, action plans 83 constituent entities Russian Federation improvement tap quality. Results: established that violation was most often registered aluminum, boron, bromine, iron, silicon, lithium, magnesium, manganese, sodium, chloroform. Hygienic requirements determine necessary technological solutions be implemented at treatment facilities; yet, their implementation requires amount time might cause deterioration it agree with local bodies charge federal surveillance transition eliminating threat public health poor water. Conclusions: The authors propose an algorithm conducting risk decision deviations.