Office for Nuclear Regulation

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Hunterston B - LC 36 Compliance 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 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, Inspector's Opinions and Reasons for Judgements Made

Licence Condition 36 (Organisational capability) – I inspected the station implementation of the EDF management of organisational change (MOC) process.  From a sample of organisational change proposals I judged that the station is following the MOC process adequately and therefore it is meeting relevant good practice.  There are some areas where improvement can be made and two recommendations have been made to enhance the justification and independent oversight of MOC proposals.  These will be tracked to closure through routine interactions with the station.  I have therefore rated this inspection as Green, no formal action for LC 36.

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.