Office for Nuclear Regulation

Atomic Weapons Establishment Burghfield – Inspection ID: 52681

Executive summary

Date(s) of inspection:

  • June 2023

Aim of inspection

This inspection at AWE *F20 will be undertaken as part of a programme of planned inspections for 2023/24. The scope of the intervention was aligned to the ONR AWE Strategy.

The key aim of the inspection is for ONR to gain regulatory confidence that:

  • The Construction or Installation of New Plant arrangements, specifically used on the *F20 civils engineering, are adequate
  • The implementation of the Construction or Installation of New Plant arrangements on *F20 is adequate

Subject(s) of inspection

LC 19 – Construction or installation of new plant – Rating: GREEN

Key findings, inspector’s opinions and reasons for judgement made

The inspection team carried out an LC19 compliance inspection at the AWE Burghfield Nuclear Licensed Site (BNLS), *F20 facility. The Inspection team reviewed the management arrangements for LC19 and was able to establish the “golden thread” in the management system for this LC.

The inspection team sampled various Life Time Quality Records (LTQR) for concrete and steel work, and also held discussions with the AWE team and Mensa contractors and from these interventions, it is the inspection teams opinion that the procedures and controls evidenced by AWE demonstrated that Relevant Good Practice had been observed and AWE were following their own procedures and that the requirements of LC19 had been satisfied. AWE presented a clear auditable trail for all of the area’s sampled and demonstrated good control of documents, records and certifications.

AWE demonstrated to the inspection team the interfaces been the contractors on site and who is responsible for what parts of the construction phases, additionally producing documentation for contractors who  undertook independent testing, inspection and certification of the various area’s sampled during the inspection. The inspection team sampled the SQEP welder approval certificates and all were found to be adequate.


Based on the evidence my sampled and the evidence provided by the AWE *F20 Safety Case and Structural Engineering Teams, he inspection team considered that the licensee’s arrangements and their implementation across the areas inspected demonstrated adequate compliance against the requirements of LC19. Therefore, an assessment rating of GREEN (no formal action required) has been given for licence condition. The *F20 Safety Case Manager accepted my judgment at the wash up meeting.