Office for Nuclear Regulation

Hunterston B planned interventions - LC11 Emergency Arrangements

Executive summary

Purpose of Intervention

The purpose of this intervention was to undertake a compliance inspection  at EDF Energy Nuclear Generation Limited’s (NGL’s) Hunterston B power station in line with the planned inspection programme contained in the Hunterston B integrated intervention strategy (IIS) for 2017/2018.

Interventions carried out by ONR

As part of this intervention I, the nominated site inspector carried out an inspection against:

The intervention was performed in line with ONR's guidance requirements (as described in our technical inspection guides) in the areas inspected.

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, inspectors’ opinions and reasons for judgements made

The inspection sampled the station emergency arrangements capability map, the emergency response handbook and supporting guidance and reviewed progress against the emergency facilities and equipment improvement plan.  The inspection also included attendance at the station annual review of emergency arrangements meeting, where it was agreed that there were no significant shortfalls in the emergency arrangements at Hunterston B.  There continue to be some areas where station can make improvements in the area of integration of safety and security emergency arrangements.  The scenario of the next level 1 demonstration exercise, scheduled for October 2019, has therefore been specifically chosen to further explore and develop this area.

  From the sample of the inspection of the emergency arrangements capability map, of the emergency response handbook and in conjunction with the site improvement plan, I judged that Hunterston B is meeting relevant good practice for LC11 - Emergency arrangements, when compared to ONR guidance. The inspection was therefore rated as Green, no formal action.

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 the Hunterston B Power Station.