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The Water Supply (Water Quality) (Amendment) Regulations 2016
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Regulation 5
SCHEDULE 1
Regulation 6A
“SCHEDULE 2ARadioactive substances parameters
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(i) | 100 | Bq/1 | |
| Tritium (for radioactivity)(ii) | 100 | Bq/l | |
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