Office for Nuclear Regulation

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LC26 Compliance Inspection

Executive summary

Purpose of intervention

The purpose of this intervention was to undertake compliance inspection activities at EDF Energy Nuclear Generation Limited’s (NGL’s) Hartlepool power station in line with the ONR’s planned inspection programme contained in the Hartlepool Integrated Intervention Strategy (IIS) for 2015/16.

Interventions Carried Out by ONR

Assisted by an ONR Specialist Insp

ector, I undertook an intervention to evaluate NGL’s implementation of arrangements made under the following licence conditions.

The intervention involved:

I undertook further enquires following an incident which occurred on site when a hot gas release door was found open. I also discussed NGL’s plans to enhance the site’s performance in relation to configuration management.

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable, no system based inspections were undertaken during this intervention.

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

During the inspection we observed a sample of NGL operations staff undertaking operations important to safety. We reviewed NGL’s records and confirmed that these staff had been assessed to be competent. I judge that an IIS rating of 3 (adequate) is appropriate against licence condition 12 (duly authorised and other suitably qualified experienced persons).

We sampled a number of activities undertaken by the shift and observed that work was undertaken diligently and systematically, in accordance with written instructions. The procedures accurately reflected the plant configuration and the requirements of the task. Prior to commencing each task, workers were formally set-to-work via the team leader who confirmed personnel were competent and fit for the duty. I judge that an IIS rating of 3 (adequate) is appropriate against licence condition 24 (operating instructions).

In respect to control and supervision, the shift handover I observed was undertaken systematically in accordance with NGL’s arrangements. The status of ongoing work was clarified and potential risks highlighted. This information was effectively communicated with the operations team via a shift briefing.

During our time on plant we observed a high standard of housekeeping within the Turbine Hall. However; we observed some minor improvements which could be made to housekeeping in an outside area of plant. NGL committed to address these observations. Overall, I judge that NGL demonstrated adequate standards of control and supervision, warranting an IIS rating of 3 (adequate) against licence condition 26.

I reviewed NGL’s internal investigation of an incident were a hot gas door was found to be open. I found that NGL’s investigation was systematic and identified appropriate corrective actions to address the identified causes. I judge that NGL’s internal investigation of the incident was adequate warranting an IIS rating of 3 (adequate) against licence condition 7 (incidents on site).

During the quarter, a number of incidents were reported to ONR by EDF NGL in which plant was identified in an inappropriate configuration. In response NGL is developing a programme to enhance the site’s performance in relation to configuration management. I concluded that NGL has used a systematic approach to identify potential areas for improvement and am content that the programme has appropriate leadership support to achieve its goals. ONR will monitor implementation this programme during routine site inspection activities. An ONR Issue has been raised to track this commitment. 

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

Conclusion of Intervention

There are no findings from this inspection that could significantly undermine nuclear safety and no change is necessary to the planned interventions and inspections at Hartlepool as a result.