Hinkley Point A - LC4, 5, 7, 18, 28 and Ionising Radiation Regulations 2017 inspection
- Site: Hinkley Point A
- IR number: 18-048
- Date: June 2018
- LC numbers: 4, 5, 7, 18, 28
Purpose of Intervention
ONR undertook this intervention to examine Magnox Ltd’s compliance with a number of Licence Conditions (LCs) and other legislation at Hinkley Point A (HPtA) site. This was a planned intervention as detailed in ONR’s intervention plans for the HPtA site, and in support of ONR’s Decommissioning Fuel and Waste sub-division strategy.
Interventions Carried Out by ONR
The following compliance inspections were carried out.
- LC 4 (Restrictions on Nuclear Matter on the Site)
- LC 5 (Consignment of Nuclear Matter)
- LC 7 (Incidents on Site)
- LC 18 (Radiological Protection)
- LC 28 (Examination, Inspection, Maintenance and Testing)
- Ionising Radiations Regulations 2017 (IRR17).
The inspection comprised of an examination of a sample of the licensee’s arrangements, an examination of a sample of associated records, discussions with employees and contractors, the observation of a maintenance activity, and a plant walk-down of key radiological facilities.
Explanation of Judgement if Safety System Not Judged to be Adequate
Key Findings, Inspector's Opinions and Reasons for Judgements Made
Based upon the evidence sampled it is my judgement that Magnox Ltd is, at the HPtA site, complying with both the Licence Conditions inspected and the Ionising Radiation Regulations 2017. The key findings and rationale for my judgement is as follows:
- I found that the licensee has adequate arrangements for restricting nuclear matter of the site and also for consigning nuclear matter. Records sampled were found to be adequate and I found that arrangements have been implemented adequately.
- I found that investigations carried out by the licensee into two minor events involving unexpected contamination of areas have adequately established the circumstances leading up to these events and have identified appropriate actions to reduce the probability of either of these events recurring.
- I found that the average effective dose and maximum dose for employees and members of the public for last year, and current predictions for 2018, to be within acceptable limits.
- I found that the licensee has adequate arrangements for the examination, inspection, maintenance and testing of plant. I sampled a number of records from the nuclear plant maintenance schedule and found these to have been carried out in accordance with the required intervals and in accordance with schemes laid down in writing. I found there was a clear link from the safety case through to the nuclear plant maintenance schedule and down to the work instruction used by the maintenance technician. I observed the setting to work of maintenance technicians and found that a comprehensive pre-job brief was given and that the maintenance technicians were provided with the necessary documentation for them to carry out the job safely. I observed the maintenance activity and found that it was carried out in accordance with the work specification.
- I found that the licensee has adequate arrangements for controlling exposure to radiation and has implemented these adequately in the areas I inspected. I found that radiological areas are appropriately designated and controlled, change-rooms are fit-for-purpose, appropriate PPE is available, monitoring equipment is calibrated and used correctly, signage is up to date, and employees are trained, suitably qualified and experienced in their roles.
Conclusion of Intervention
I provided their feedback to the licensee at the end of the inspection; this included advice and a small number of minor observations.