Office for Nuclear Regulation

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Dungeness A - Intervention on Control of Occupational Radiation Exposure IRR99 regulation 8

Executive summary

Purpose of intervention

To assess compliance with regulation 8 of the Ionising Radiations Regulations 1999 (IRR99).

Interventions Carried Out by ONR

The intervention was undertaken as part of ONR’s Control of Occupational Radiation Exposure (CORE) project, which assesses compliance with IRR99 regulation 8, which is concerned with the restriction of exposure to ionising radiations so far as is reasonably practicable (SFAIRP).

The standard CORE questionnaire was submitted to, and completed by, the Licensee prior to the site visit.  We then discussed the adequacy of the arrangements described in the response with the Licensee and conducted a plant visit to determine whether these arrangements were being effectively applied at the point of work.

An overall rating for the adequacy of the arrangements is presented within this intervention record, and a more detailed set of ratings for each of the CORE criterion will be presented in a separate CORE assessment report.

Explanation of Judgement if Safety System Not Judged to be Adequate

This intervention did not include a safety system inspection.

Key Findings, Inspector's Opinions and Reasons for Judgements Made

The Licensee provided its response to the CORE questionnaire prior to the site visit which we reviewed and discussed with the Licensee upon arrival.  We explored the arrangements for restricting worker exposure to ionising radiation at Dungeness A and were provided with sufficient supporting evidence with respect of the arrangements for compliance with the requirements of IRR99 regulation 8.  From a limited sample of relevant work taking place, our plant visit confirmed that the Site is adequately implementing its arrangements at the point of work.

We were satisfied that the Licensee is complying with its duties under regulation 8 and demonstrated some areas of good practice, including the organisation of frequent, well-structured and well represented ALARP committees.

The most significant areas for improvement are:

Both matters will be taken forward as ONR Issues.

Conclusion of Intervention

The intervention identified several areas of good practice and also some areas for improvement. On balance, we consider that the Licensee is broadly compliant with IRR99 regulation 8 to restrict operational exposure SFAIRP, hence the overall rating of ‘adequate’.