The Natural Mineral Water, Spring Water and Bottled Drinking Water (Wales) Regulations 2015

PART 4 E+W Parametric values for radon, tritium and indicative dose (ID)

Table D:

1 Remedial action is deemed to be justified on radiological protection grounds, without further consideration, where radon concentrations exceed 1000 Bq/l.
2 Elevated levels of tritium may indicate the presence of other artificial radionuclides. If the tritium concentration exceeds its parametric value, an analysis of the presence of other artificial radionuclides is required.
Item	Parameter	Unit of Measurement	Maximum Concentration or Value
1.	Radon	Bq/l	100 1
2.	Tritium	Bq/l	100 2
3.	Indicative Dose	mSv	0.10