Office for Nuclear Regulation

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Magnox Ltd Harwell Compliance Inspection

Executive summary

Purpose of Intervention

This inspection on the Harwell licensed site was undertaken as part of a programme of planned interventions as outlined in the site inspection plan for 2017/18.

Interventions Carried Out by ONR

During this intervention, I carried out a compliance inspection against the following licence conditions:

I also carried out a reactive unplanned inspection against the following licence condition:

The inspection comprised plant inspection, office-based examination of procedures and records and interviews with staff.  I also held meetings to discuss a number of routine matters.

Explanation of Judgement if Safety System Not Judged to be Adequate

No safety system was inspected during this intervention.

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

With regard to LC6, I have concluded that the licensee has good arrangements for control of access and storage of records. However, I have identified that these arrangements are unclear concerning what records should be created and retained. Further I have identified that the licensee’s staff are confused about its arrangements. I have required the licensee to correct this situation and have raised a regulatory issue to monitor the licensee’s progress with dealing with this matter.    

With regard to LC16, I consider that the licensee has robust arrangements to review its building schedule and site plan, and to provide these documents to ONR.

With regard to LC25, Based on the evidence gathered from my inspection against LC25, I consider that the licensee is creating adequate records of its radioactive wastes. The licensee also recoded the amount and location of its all radioactive material that it is storing on the site. 

With regard to LC32, I found a number of legacy waste drums containing radioactive waste that were showing signs of degradation. I have required the licensee to provide an action plan to deal with this waste and have raised a regulatory issue to monitor the licensee’s progress with dealing with this matter.

The intervention was performed in line with ONR’s guidance requirements (as described in our technical inspection guides) in the areas inspected.

Conclusion of Intervention

From the evidence gathered during this intervention, I conclude that there are no matters that may impact significantly on nuclear safety.