Office for Nuclear Regulation

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Planned intervention at Heysham 1

Executive summary

Purpose of intervention

The purpose of this intervention was to carry out planned compliance inspections at the EDF Energy Nuclear Generation Limited’s (NGL’s) Heysham 1 power station in line with the programme contained in the Heysham 1 Integrated Intervention Strategy (IIS) for 2016/17.

Interventions Carried Out by ONR

I, the nominated site inspector and a radioactive waste specialist carried out joint inspection with the Environment Agency (EA) inspector covering land quality and groundwater protection. This inspection was led by the EA. I also carried out a quarterly review on the progress with ONR issues, attended a routine meeting with the station internal regulators and followed up on a defect identified on a runaway beam and hoist.

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

This was an EA led inspection on land quality and groundwater protection, therefore no ONR inspection rating has been given. However, it was judged that the general status of land quality and groundwater at Heysham 1 is good. There are no identified areas of radiological contaminated land and relatively minor areas contaminated with non-radiological hazardous substances. The licensee has made a number of improvements to the land quality management arrangements over the last two years. A number of areas for improvement were identified, particularly in relation to intelligent customer capability and maintenance of the boreholes used for sampling. No safety significant issues were identified and the recommendations/observations will be followed up by the EA site inspector.

I followed up on a defect identified during a Lifting Operations and Lifting Equipment Regulations (LOLER) inspection by Bureau Veritas (BV). I inspected the equipment and previous BV inspection records and raised some queries with NGL. The station stated that it intends to undertake an investigation to determine the cause of the defect and to review the inspection intervals. The result of the investigation and review will be sent to ONR and will be reviewed by the ONR conventional health and safety team and myself.

In general, good progress is being made to address previous ONR issues. Where progress has been delayed due to other priorities a way ahead has been agreed.

I also attended a routine meeting with the station internal regulators to discuss findings from previous interventions at the station by ONR and themselves. The opportunity was also taken to discuss proposed interventions for the following year, to try and co-ordinate inspections where possible to make best use of the available expertise and to reduce the regulatory burden on the station.

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

From the evidence gathered during this intervention, I do not consider there to be any matters that have the potential to impact significantly on nuclear safety.

At present, no additional regulatory action is needed over and above the planned interventions of Heysham 1 power station as set out in the Integrated Intervention Strategy, which will continue as planned.