Schedule 1 I1

England and Wales

“SCHEDULE 2A

Radioactive substances parameters

Regulation 6A

Parametric values for radon, tritium and ID of water intended for human consumption

Parameters Maximum concentration or value Units of measurement

(i)
Enforcement action by the Welsh Ministers is deemed justified on radiological protection grounds without further consideration where radon concentrations exceed 1,000 Bq/1.

(ii)
If tritium concentration exceeds its parametric value, an investigation (which may include analysis) of the presence of artificial radionuclides must be carried out.

Indicative dose (for radioactivity)
0,10

mSv

Radon^f1 100 Bq/1
Tritium (for radioactivity)^f2 100 Bq/l

”

Parameters	Maximum concentration or value	Units of measurement
(i) Enforcement action by the Welsh Ministers is deemed justified on radiological protection grounds without further consideration where radon concentrations exceed 1,000 Bq/1.
(ii) If tritium concentration exceeds its parametric value, an investigation (which may include analysis) of the presence of artificial radionuclides must be carried out.
Indicative dose (for radioactivity)	0,10	mSv
Radon^f1	100	Bq/1
Tritium (for radioactivity)^f2	100	Bq/l

Annotations

Commencement

I1: Sch. 1 in force at 14.4.2016, see reg. 1(1)

Footnotes

f1

(i)

Enforcement action by the Welsh Ministers is deemed justified on radiological protection grounds without further consideration where radon concentrations exceed 1,000 Bq/1.

f2

(ii)

If tritium concentration exceeds its parametric value, an investigation (which may include analysis) of the presence of artificial radionuclides must be carried out.