S.L. 449.61 ст. 8Failure to comply with a parametric value.

(1) The competent authority shall ensure that any failure to comply with a parametric value laid down pursuant to regulation

5(1) is immediately investigated in order to identify the cause.

(2) Where a failure to comply with a parametric value occurs, the competent authority shall assess whether the failure poses a risk to human health which requires action.

(3) In the event that such a risk referred to in sub-regulation (2) exists, the competent authority shall:

(a) order the water utilities and, or private water suppliers to take remedial action in order to comply with requirements for the protection of human health from a radiation protection point of view; and

(b) ensure that the general public concerned is:

(i) notified of the risk and the remedial action taken; and

(ii) advised on any additional precautionary measures that may be needed for the protection of human health in respect of radioactive substances.

(4) The notifications referred to in sub-regulation (3)(b) are to be issued by the competent authority based on the detailed information which is to be provided to it by the water utility and, or private water supplier.

(5) The competent authority shall always have the right to issue such notifications to the public immediately once such a non-compliance becomes known. [

SCHEDULE I PARAMETRIC VALUES FOR RADON, TRITIUM AND ID OF WATER INTENDED FOR HUMAN CONSUMPTION

Parameter Parametric value Unit Notes Radon 100 Bq/l (note 1) Tritium 100 Bq/l (note 2) ID 0,10 mSv

Note 1:

(a) The competent authority may set a level for radon which is judged inappropriate to be exceeded and below which optimisation of protection should be continued, without compromising water supply on a national or regional scale. The level set by the competent authority may be higher than 100 Bq/l but lower than 1 000 Bq/l. In order to simplify national legislation, the competent authority may choose to adjust the parametric value to this level.

(b) Remedial action is deemed to be justified on radiological protection grounds, without further consideration, where radon concentrations exceed 1 000 Bq/l. Note 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 shall be required.

Amended by: SCHEDULE II L.N. 151 of 2022. MONITORING OF RADIOACTIVE SUBSTANCES

=1. General principles and monitoring frequencies All parameters for which parametric values must be set pursuant with regulation 5(1) shall be subject to monitoring. However, no monitoring of a specific parameter shall be required where a competent authority can establish that, for a period of time to be determined by it, that parameter is not likely to be present in a given supply of water intended for human consumption in concentrations which could exceed the corresponding parametric value. In case of naturally occurring radionuclides, where previous results have shown that the concentration of radionuclides is stable, the frequency, in derogation from the minimum sampling requirements set out in paragraph 6, is to be decided by the competent authority, taking into consideration the risk to human health. The competent authority is not required to request water utilities and, or private water suppliers to monitor water intended for human consumption for radon or tritium or to establish the ID where it is satisfied, on the basis of representative surveys, monitoring data or other reliable information, that, for a period of time to be determined by it, the levels of radon, tritium or of the calculated ID will remain below the respective parametric values listed in Schedule I. In that case, it shall communicate the grounds for its decision to the Commission and provide the Commission with the necessary documentation supporting that decision, including the findings of any surveys, monitoring or investigations carried out. In this context, the provisions with regard to the minimum sampling and analysis requirements set out in paragraph 6 of this Schedule do not apply.