Nuclear LLC Quarterly reports – Sizewell B

The Nuclear Local Liaison Committee (LLC) Quarterly reports for 2009 quarter 4 for British Energy Generation Ltd Sizewell B Nuclear Power Station are now available.


This report is issued as part of the Health and Safety Executive’s commitment to make information about inspection and regulatory activities relating to the above site available to the public. It is for distribution to members of the Sizewell A and B Stakeholders Group (SSG) and covers activities associated with the regulation of safety at Sizewell B. These reports are distributed quarterly and are also available on the HSE’s website[1]. Site inspectors of HM Nuclear Installations Inspectorate usually attend SSG meetings and will respond to questions raised there by members of the SSG. Any other person wishing to enquire about matters covered by this report may contact the HSE’s Nuclear Directorate on 0151-951-3484/3290.

Nuclear Safety Directorate
Health and Safety Executive
Redgrave Court
Merton Road
L20 7HS


The Nuclear Installations Inspectorate (NII) made inspections at Sizewell B on the following dates during the quarter:

  • 18 to 19 November 2009
  • 24 November 2009
  • 7 to 11 December 2009

Routine matters

Inspections at Site: Inspections are undertaken at site as part of the process for monitoring compliance with:

  1. the conditions attached by HSE/NII to the nuclear site licence;
  2. the Health and Safety at Work etc Act (HSWA) 1974 and
  3. regulations made under the HSWA for example the Ionising Radiations Regulations 1999 and the Management of Health and Safety at Work Regulations 1999.

This entails monitoring licensee’s actions on the site in relation to incidents, operations, maintenance, projects, modifications, safety case changes and any other matters which may affect safety. The licensees/operators are required to make and implement adequate arrangements under the conditions attached to the licence in order to ensure legal compliance. Inspections seek to judge both the adequacy of these arrangements and their implementation. In this period routine inspections of station covered:

  • Examination, Maintenance, Inspection and Testing.
  • Meeting Safety Reps.
  • Management of operations including control and supervision.
  • Organisational Changes.

In general the arrangements made and implemented by the station in response to safety requirements were deemed to be adequate in the areas inspected. However, where improvements were considered necessary, satisfactory commitments to address the issues were made by or are being sought from the licensee, and the site inspector will monitor progress during future visits. Where necessary, formal regulatory enforcement action will be taken to ensure that appropriate remedial measures are implemented to reasonably practicable timescales.

The period covered by this report included a handover from the outgoing NII inspector (John Donald) to the incoming NII inspector (Paul Smith).

The Head of HSE Nuclear Directorate and Chief Inspector (Mike Weightman) visited the site on 24th November 2009. There were no significant issues arising from this visit.

Non-routine matters

Licensees are required to have arrangements to respond to non-routine matters and events. NII inspectors judge the adequacy of the licensee’s response including actions taken to implement any necessary improvements. There are no items of particular note during the current reporting period.

Regulatory activity

Under Health and Safety legislation NII Site Inspectors, and other HSE Inspectors, may issue formal documents to ensure compliance with regulatory requirements. Under nuclear site licence conditions HSE/NII issues regulatory documents, which either permission an activity or requires some form of action to be taken; these are collectively termed Licence Instruments (LI). In addition inspectors may issue enforcement notices to secure improvements to safety.

One Licence Instrument was issued during this quarter.

  • LI 519 – Approval of changes to Pressuriser Safety Relief Valve setting
  • LI 520 – Consent to start up the Reactor.