Planned Control of Radiation Exposure (CORE) inspection at Barrow
- Site: Barrow
- IR number: 16-183
- Date: December 2016
- LC numbers: N/A
Purpose of intervention
In accordance with the ONR programme of planned inspections to examine Control of Radiation Exposure (CORE) across a number of nuclear sites (under Regulation 8 of the Ionising Radiations Regulations, IRRs 1999), two ONR specialist radiological protection inspectors conducted an inspection of control of radiation doses on the BAE Systems Marine Ltd Barrow in Furness site. To ensure a consistent approach to CORE inspections, ONR uses a standard questionnaire and follow-up question and answer sessions with the duty holder. Other regulatory interface meetings were also held on site
Interventions Carried Out by ONR
The inspection was conducted on the licensed BAE Systems Marine Ltd Barrow in Furness site and consisted of:
- Meetings with site personnel.
- Plant visits to the Devonshire Dock Hall (DDH), New Core Facility (NCF), Waste Treatment Facility and Chemistry Laboratories
- Detailed assessment of Duty holders answers to CORE questionnaires.
The aspects examined included: ALARP strategy; dose limits, targets and budgets; trending and analysis; learning from experience; targeting of ALARP measures; work scheduling; provision of information and training for workers; and benchmarking and sharing relevant good practice.
Explanation of Judgement if Safety System Not Judged to be Adequate
Key Findings, Inspector's Opinions and Reasons for Judgements Made
BAE Systems Marine Ltd arrangements for operational radiation protection are considered to be consistent with examples of relevant good practice in the following respects:
- The Radiography group had developed robust radiography source recovery contingency arrangement to ensure doses are ALARP
- Use of the training mock-ups in preparation for new core installation.
- Use of the Red/ Amber /Green (RAG) operational feedback alerts across the site.
Some areas for potential improvement were identified as follows:
- A written rationale is required to support the radiological survey requirements and schedule;
- Action levels justification is required to support the radiological monitoring clearance certificates process;
- Radiological area signage should be standardised in line with that seen at the Waste Treatment Facility; and
- Expansion of the IRR99 compliance grid in the Radiation Safety Manual to include all supporting documents would provide improved clarity of the processes involved and highlight any gaps.
Conclusion of Intervention
The arrangements inspected were deemed overall to be adequate.