- Site: Trawsfynydd
- IR number: 21-173
- Date: February 2022
- LC numbers: 22, 26, 28
Executive summary
Purpose of Intervention
This inspection was one of a series of planned inspections for 2021/22, which are informed by the ONR Decommissioning Fuel and Waste (DFW) sub-division strategy.
Interventions Carried Out by ONR
This inspection examined the adequacy of Magnox Limited’s (ML) arrangements and their implementation on the Trawsfynydd site for compliance with Licence Conditions (LC): LC 22 (Modification or experiment on existing plant); LC 26 (Control and supervision of operations); and LC 28 (Examination, inspection, maintenance and testing). I discussed Trawsfynydd’s management of regulatory issues, regulatory schedule, and planning for the next annual regional review of safety, security and environment meeting.
Explanation of Judgement if Safety System Not Judged to be Adequate
Not applicable
Key Findings, Inspector's Opinions and Reasons for Judgements Made
Based on the evidence examined it is my judgement that ML is effectively implementing arrangements for complying with LC 22, 26 and 28 at Trawsfynydd.
Conclusion of Intervention
I judged Trawsfynydd’s implementation of its LC22, 26 and 28 arrangements to be adequate in the areas inspected and no regulatory concerns were identified as a result of this inspection.
Diben yr Ymyriad
Roedd yr arolygiad hwn yn un o gyfres o arolygiadau a gynlluniwyd ar gyfer 2021/22, sy'n cael eu llywio gan strategaeth is-adran Datgomisiynu Tanwydd a Gwastraff (DFW) ONR.
Ymyriadau a Gynhaliwyd gan ONR
Archwiliodd yr arolygiad hwn ddigonolrwydd trefniadau Magnox Limited (ML) a'u gweithredu ar safle Trawsfynydd er mwyn cydymffurfio ag Amodau'r Drwydded (LC): LC 22 (Addasu neu arbrofi ar y peiriannau); LC 26 (Rheoli a goruchwylio gweithrediadau); ac LC 28 (Archwilio, arolygu, cynnal a chadw a phrofi). Trafodais reolaeth Trawsfynydd ar faterion rheoleiddio, atodlen reoleiddio, a chynllunio ar gyfer yr adolygiad rhanbarthol blynyddol nesaf o gyfarfod diogelwch, diogeledd a'r amgylchedd.
Esboniad o'r Dyfarniad os na Fernir bod y System Ddiogelwch yn Ddigonol
Amherthnasol
Canfyddiadau Allweddol, Barn yr Arolygydd a'r Rhesymau dros Ddyfarniadau a Wnaed
Yn seiliedig ar y dystiolaeth a archwiliwyd, fy marn i yw bod ML yn gweithredu trefniadau ar gyfer cydymffurfio ag LC 22, 26 a 28 yn Nhrawsfynydd yn effeithiol.
Casgliad yr Ymyriad
Barnais fod gweithrediad Trawsfynydd o'i drefniadau LC22, 26 a 28 yn ddigonol yn y meysydd a arolygwyd ac ni nodwyd unrhyw bryderon rheoleiddiol o ganlyniad i'r arolygiad hwn.