[F1Screening for certain radionuclides, or screening for an individual radionuclideE+W
7. If one of the activity concentrations exceeds 20% of the corresponding derived value or the tritium concentration exceeds its parametric value listed in Part 3 of Schedule 1 an analysis of additional radionuclides is required.]
Textual Amendments
F1Sch. 3 Pt. 3 inserted (14.4.2016) by The Private Water Supplies (Wales) (Amendment) Regulations 2016 (S.I. 2016/411), reg. 1(1), Sch. 3