This Order establishes sanitary and epidemiological requirements for ensuring radiation safety of potable water. It shall be destined for natural and legal persons dealing with selection of potable water abstraction sources, operation of centralized and non-centralized potable water supply systems, bottling of potable water and potable water quality control. Radiation and hygienic potable water assessment shall include three stages: (a) determination of summarized alpha- and beta-particle activi