Office for Nuclear Regulation

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LC36 inspection of Heysham 1 power station

Executive summary

Purpose of Intervention

The purpose of this intervention was to undertake regulatory inspections at EDF Energy Nuclear Generation Limited (NGL) Heysham 1 Power Station in accordance with ONR's Integrated Intervention Strategy (IIS) 2017-2018 for the Operating Reactors Sub-Division. This report covers the nuclear safety-related inspection of Heysham 1 power station, which was undertaken as part of routine planned and reactive interventions.

Interventions Carried Out by ONR

During this intervention a compliance inspection was conducted against LC 36 - Organisational Capability. I (the Heysham 1 Nominated site inspector) also attended the joint annual review of the Heysham station's emergency arrangements made under LC 11. This meeting was also attended by the Heysham 2 Nominated site inspector and Civil Nuclear Security inspector. During this visit I also undertook a number of information gathering interventions as part of normal regulatory business.

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

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable: No safety system inspection was undertaken during this intervention.

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

For the LC36 compliance intervention I found that the positive observations, reported in the previous ONR intervention in July 2016 had been maintained. The HR department management of change (MoC) resource has also recently been bolstered following the completion of training/ mentoring for an additional MoC coordinator. From my sampled review of recent MoC documents and maintenance of the station nuclear baseline, I judge that the LC 36 arrangements and their implementation met the expected standard and no regulatory issues were identified. I have therefore rated this inspection as GREEN.

The joint Heysham station annual review of emergency arrangements was judged to cover a comprehensive review of the Licensee's implementation of arrangements supporting LC11 with a good performance being reported by the stations for April 2016 - March 2017. I also judge that a suitable level of oversight is given by the Station's own internal assurance function including the progressing of actions. From the annual reports sampled along with the presentation given and the discussion with station personnel I and the Heysham 2 nominated site inspector consider that the required standards were met, with no regulatory issues being raised.

I undertook a walk down of the Beyond Design Basis equipment and tie-ins with the INA site evaluator. Much of the equipment and work is now completed however there are still a small number of outstanding areas for completion and modification. Completion of the work and arrangements to support transfer into normal station operations is subject to INA surveillance, which is expected to be completed by the end of this year. Completion of the work across the fleet is being overseen via the ONR Corporate Inspection programme.

I met with the site safety representatives. A number of topics were discussed including site security policies, Health, Environment and Safety Advisory Committee, fatigue management and mental health and well-being. The discussion was open and constructive with no matters of significant concern being raised that I consider require a regulatory action or issue to be raised at this time.

Conclusion of Intervention

From the information gathered and evidence obtained during this intervention, no matters have been identified that are likely to have significant impact on nuclear safety on the station at this time. Therefore I consider that no additional regulatory action arising from this visit is necessary currently, and the interventions for Heysham 1 power station, set out in the integrated intervention strategy, should continue to be implemented as planned.