Office for Nuclear Regulation

This website uses non-intrusive cookies to improve your user experience. You can visit our cookie privacy page for more information.

Hinkley Point C planned inspection

Executive summary

Purpose of intervention

As part of a planned visit to site by two ONR Principal Inspectors, primarily to discuss progress with earthworks underway at the site and preparations for the start of quality related activities, the opportunity was taken to undertake inspections of Licence Conditions 2 and 9. The presence on site of a further ONR principal Inspector (site inspector for Moorside) provided extra resource to facilitate these compliance inspections during a busy site visit.

Interventions Carried Out by ONR

Two ONR Principal Inspectors - Nuclear Safety (PI-NS) inspected Licence Condition 2 (LC2) "marking of the site boundary". This LC was selected for inspection since the number of personnel on the Hinkley Point C (HPC) site and the level of construction activities on the site are increasing. It is therefore timely to ensure that the location of the HPC Nuclear Site Licence (NSL) boundary is visible to both persons on the site and to members of the public off the site.

In addition, an inspection of LC9 (Instructions to Persons on Site) was undertaken.

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable.

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

In relation to LC2 we concluded that the arrangements sampled were appropriate for the current phase of a new nuclear build site. Best practice observations were that: nuclear site licence boundary signs are inspected on a monthly basis (which is appropriate given the current high level of construction activity on the site); the frequency of maintenance can be readily changed as construction activity levels on the site that may impact the nuclear site licence boundary signs changes; and, the LC2 arrangements are reviewed on a yearly basis. We concluded that the arrangements sampled were being adequately implemented. Taking these factors into account we judged the arrangements inspected under LC2 to be Green.

For LC9, we noted that the arrangements had not been changed since the last time this was inspected and found to be acceptable. Briefing on hazards and alarms to ONR site visitors was found to be acceptable. In addition, during the visit the site muster alarm was sounded and was found to be clearly audible, as was the pager alarm being carried by the Site Controls Manager.

Conclusion of Intervention

The compliance inspections of both LC 2 and LC 9 were assessed as adequate and thus rated as Green.