16. New water supplies shall be sampled and analyzed for radionuclides to determine their suitability for drinking-water before design and construction.
17. For a new drinking-water supply, measurements of radionuclides in the water shall be made at the source as part of characterizing the source and determining its suitability for drinking-water. The extent of treatment that will be carried out shall also be taken into account.
18. The frequency for measuring activity concentrations of radionuclides in drinking-water shall be developed considering the available resources, if there is a potential for there to be a public health risk from radionuclides in the drinking-water and other priorities for providing safe drinking-water.