Office for Nuclear Regulation

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Heysham 1 - Planned Compliance Inspection

Executive summary

Purpose of Intervention

The purpose of this intervention was to undertake regulatory inspections at EDF Energy Nuclear Generation Limited (EDF 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

As part of this intervention, I (the Nominated Site Inspector), supported by the ASN seconded inspector, carried out planned compliance inspections against the following licence conditions:-

I also attended the Reactor 2, 2018 statutory outage (024) intentions meeting and LC 30 Periodic shutdown intervention, supported by the ONR project and specialist inspectors.

The interventions were based on sampling the implementation of the arrangements in place at the station against the licence condition and ONR inspection guidance.

During this inspection I also undertook a number of routine information gathering meetings with site safety representatives and the station independent nuclear assurance.

Explanation of Judgement if Safety System Not Judged to be Adequate

No safety system inspection was undertaken, hence this is not applicable.

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

I met with the site safety representatives.  A number of topics were discussed including mental health and well-being, safety coordinator roles, statutory outage and task teams.  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.

I had a regular meeting with the site internal safety regulator to discuss a number of topics including INA and ONR intervention plans/ surveillances for 2018/ 19, resources, station safety cases, plant, EP&R arrangements, statutory outage, periodic safety review and staff changes.  The discussion was open and constructive highlighting areas of potential joint working and collaboration.  No matters of significant concern were discussed that I consider require additional action at this time.

I found the arrangements in place to comply with LC 8 to be in line with ONR guidance and from the evidence sampled I judge that suitable and sufficient notices are kept on site for the purposes of informing persons thereon.  A number of minor areas for improvement were noted that the Station will address through it’s own arrangements.  I have rated this inspection as an intervention rating of Green.

The arrangements to comply with LC 9 are in line with ONR guidance and are being complied with at Heysham 1.  A number of the associated arrangements such as training pocket booklets and the safety stand down process are considered to be good practice.  I have rated this inspection as Green for compliance with arrangements and some examples of good practice which have been observed.

It is my opinion that the arrangements to comply with LC28 are adequate. From my sampling I made observations suggesting reasonable improvements, in particular maintaining more effectively the PMS up to date and aligned to the AMS database and capturing different arrangements used for LC28 into the LC28 compliance matrix with the aim to integrate more consistently their respective outcome for each safety system.

Based on evidence presented during this intervention I judge that Heysham 1 is complying with its LC30 arrangements.  Progress on the preparations for the R2 shutdown is good.  Some areas highlighted as slipping behind programme are known about and are being monitored by the Outage Manager.  Based upon discussions and evidence presented I consider currently there are no serious threats to the delivery of the Heysham 1 2018 R2 Periodic Shutdown and the Station is complying with its LC30 arrangements.  I have given an intervention rating of GREEN based upon my inspection findings.

Conclusion of Intervention

After considering the evidence examined during the inspection against Licence Conditions 8, 9, 28 and 30, ONR concluded that the licensee complied with its legal duties and an inspection rating of Green was determined for all aspects.

There are no findings from this intervention that could significantly undermine nuclear safety.  At present, no additional regulatory action is needed over and above the planned interventions at Heysham 1 Power Station.