The Private Water Supplies (Wales) Regulations 2010 (revoked)

[F1PART 3E+WRadioactive substances parameters

TABLE D

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

(i)

Enforcement action by the local authority 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.]

ParametersMaximum concentration or valueUnits of measurement
Indicative dose (for radioactivity)0,10mSv
Radon100Bq/1
Tritium (for radioactivity)100Bq/l