Office for Nuclear Regulation

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Planned inspection at Heysham 1 Power Station

Executive summary

Purpose of Intervention

This was a planned inspection at EdF Energy Nuclear Generation Ltd's (NGL's) Heysham 1 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-line with the inspection programme contained in the Heysham 1 Integrated Intervention Strategy (IIS).

Interventions Carried Out by ONR

During this intervention, the following key activities were undertaken

Explanation of Judgement if Safety System Not Judged to be Adequate

No system based inspection was undertaken, hence not applicable.

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

We evaluated compliance against the following site licence conditions during the themed inspection:

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

The themed inspection examined compliance against LC12, LC23, LC24, LC25, LC26, LC27, LC28 and MHSW Reg 5. Additionally, a LC22 compliance inspection was also undertaken. Overall, based on the evidence sampled, inspectors judged that legal requirements were met. We observed a number of work activities, examined management arrangements and sampled key documentation covering plant status control, work planning and work execution. In all cases the level of control and supervision was commensurate with the safety significance of the associated task. ONR has assigned a rating of Green (no formal actions) against the each of the legal requirements inspected.