Office for Nuclear Regulation

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Dungeness B transport inspection

Executive summary

Purpose of intervention

ONR Transport Programme inspected Dungeness B Power Station in relation to the safe transport of radioactive material on the 12th and 13th July 2016. This Compliance Inspection was one of a series detailed in the ONR-RMT FY16/17 Transport Inspection Programme.

Purpose of Intervention

The purpose of the inspection was to:

Interventions Carried Out by ONR

The inspection included a 'walk round' the various parts of the site involved with the preparation and transport of radioactive material, interviews with staff and documentary review.

The inspection was conducted against the requirements of the Carriage of Dangerous Goods and Use of Transportable Pressure Equipment Regulations 2009 (CDG09), a relevant statutory provision of the Energy Act 2013, and one which requires carriage by road and rail to be in accordance with the appropriate edition of a European Agreement known as ADR (for road) and RID (for rail). The current editions are ADR 2015 and RID 2015. In particular, the inspection considered the following thematic areas: Management System, Package Maintenance and Operations, Package Preparation and Consignment, Management and Control of Transport Interfaces, Training and Competence, Emergency Planning and Testing and DGSA and Other Services.

Explanation of Judgement if Safety System Not Judged to be Adequate

N/A - not a System/Structure Based Inspection.

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

The inspection concluded that the current arrangements at Dungeness B for the safe carriage of radioactive material arising from power generation continue to be adequate based on what was seen and experienced during this inspection.

The segregation of radioactive waste at Dungeness B is enthusiastically managed by the responsible Environmental Engineer. The waste management processes implemented at the station help reduce radioactive waste being un-necessarily consigned to LLWR. Where appropriate, waste is disposed of by other approved means such as metal recycling or incineration.

Conclusion of Intervention

ONR's opinion on whether or not organisation's Management System is acceptable is influenced by:

Although not all areas of Dungeness B's Management System were sampled during this inspection, sufficient evidence was obtained to indicate that the Management System is being implemented as intended.

Therefore it is the opinion of the inspectors that the Management System employed by Dungeness B in relation to radioactive material transport activities is considered acceptable for the purposes of compliance with the requirements of ADR/RID 1.7.3 - Management System.

The inspection identified areas of good practice, these being:-

The plan for Dungeness to undertake a trial to replace valves and seals on the A2 Flask is seen as good practice. If stations could satisfactorily undertake this type of maintenance activity whilst carrying out spent fuel loading operations, it would drastically reduce the time the Flask is 'out of ticket' at Sellafield (since Sellafield would not have to undertake these maintenance activities) thus improving Flask availability.

Waste is segregated at the source thus reducing the volume of material being sent to inappropriate waste streams. The segregation of radioactive waste at source rather than in the waste store is seen as good practice.