Office for Nuclear Regulation

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Dounreay - Licence Conditions 23, 24 and 27 Inspection of PFR & DFR & attendance at the Dounreay Site Stakeholder Group meeting 

Executive summary

Purpose of intervention

I undertook inspections at facility level and other work in accordance with the DSRL inspection plan for 2014/5, with the intention of providing evidence that DSRL is controlling its hazards properly and is compliant with its statutory obligations.

Interventions Carried Out by ONR

I carried out interventions at PFR and DFR against the requirements of Licence Conditions 23, 24 and 27 to confirm compliance with the arrangements made under these LCs. I carried out an intervention at site level to establish compliance with the requirements of Licence Condition 28, and was given an overview of DSRL proposals to complete the clean up of tank 3 at PFR following the fire.

Explanation of Judgement if Safety System Not Judged to be Adequate


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

My inspection against the requirements of licence conditions 23 Operating Rules, 24 Operating Instructions and 27 Safety Mechanisms at DFR and PFR was intended to provide evidence that there was both a clear link between the operating instructions and required safety mechanisms and the relevant safety case. My inspection at both PFR and DFR provided evidence that arrangements were in place and that overall compliance with the licence conditions was adequate.

My inspection against the requirements of licence condition 28 Maintenance at site level provided evidence that the required processes and audits were in place. I gathered sufficient evidence to conclude that the site had adequate arrangements and complied with the requirements of licence condition 28.

I was provided with an overview of DSRL’s intended method for the clean-up of tank 3 at the PFR tank farm and judged that the intended method looked reasonable. I agreed to meet with DSRL to discuss the detail as part of my next scheduled visit in January 2015.

Conclusion of Intervention

The intervention concluded that DFR and PFR have achieved an adequate standard of compliance with Licence Conditions 23, 24 and 27.

I conclude that DSRL’s proposed method for the completion of the clean-up at PFR tank 3 appears reasonable, although I intend to discuss the proposal is more detail at my next visit.