Office for Nuclear Regulation

Hunterston B - Annual Review of Safety, Security Exercise and Joint SEPA Inspection

Executive summary

Purpose of Intervention

This was a planned inspection of EDF Energy Nuclear Generation Ltd.’s (NGL’s) Hunterston B Power Station, undertaken as part of the planned intervention strategy for the Operating Facilities Division (OFD) of the Office for Nuclear Regulation (ONR).

The work was carried out in accord with the planned inspection programme contained in the Hunterston B Integrated Intervention Strategy (IIS) for 2018/19.

Interventions Carried Out by ONR

As part of this intervention I, the nominated site inspector:

I also held a number of routine meetings and received updates on the progress being made to close out regulatory issues previously raised.

Explanation of Judgement if Safety System Not Judged to be Adequate

No system based inspection was undertaken hence, this is not applicable for this intervention.

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

The joint inspection of the transfer of radioactive wastes was led by the SEPA Site Inspector and inspected compliance with Environmental Limit Conditions and Environmental Management Conditions that are attached to the site Authorisation issued by SEPA under the Radioactive Substances Act.  The inspection did not find any significant non-conformances with the Authorisation.

The ONR assessment and findings from of the counter terrorism demonstration exercise is reported in the ONR Security Site Inspector’s report.  Overall the exercise was judged to be an adequate demonstration of the station security plan.

The Annual Review of Safety and Security meeting was an opportunity for ONR and station to reflect on its performance.  Whilst station has continued to deliver a strong safety and security performance over the year, a number of recent lost time injuries and International Nuclear and Radiological Event Scale (INES) events have shown that continued focus on safety and security is required.

Conclusion of Intervention

There were no findings from this inspection that could significantly undermine nuclear safety.  At present, no additional regulatory action is needed over and above the planned interventions at Hunterston B Power Station as set out in the Integrated Intervention Strategy, which will continue as planned.