Clyde Naval Base and RNAD Coulport: Radioactive Materials
(asked on 10th October 2022) - View Source
Question to the Ministry of Defence:
To ask the Secretary of State for Defence, how many nuclear safety events occurred at (a) Coulport and (b) Faslane in each year since 2010.
The table below provides the number of Nuclear Site Event Reports (NSERs) at Coulport and Faslane recorded between 2010 and 2022 (January 2022-June 2022). These are shown according to their categorisation using criteria agreed locally in 2015.
Nuclear Site Events - 2010 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 1 | 2 | 0 | |
Faslane | 0 | 1 | 2 | 0 |
Nuclear Site Events - 2011 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 0 | 1 | 0 | |
Faslane | 0 | 0 | 12 | 8 |
Nuclear Site Events - 2012 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 0 | 0 | 0 | |
Faslane | 0 | 0 | 18 | 10 |
Nuclear Site Events - 2013 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 0 | 0 | 1 | |
Faslane | 0 | 0 | 10 | 11 |
Nuclear Site Events - 2014 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 0 | 3 | 3 | |
Faslane | 0 | 0 | 3 | 3 |
Nuclear Site Events – 2015* | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 0 | 2 | 0 | 0 |
Faslane | 0 | 0 | 1 | 2 | 3 |
*Updated categorisation criteria in 2015
Nuclear Site Events - 2016 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 0 | 1 | 4 | 0 |
Faslane | 0 | 0 | 3 | 5 | 9 |
Nuclear Site Events - 2017 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 0 | 2 | 1 | 0 |
Faslane | 0 | 0 | 2 | 6 | 19 |
Nuclear Site Events - 2018 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 2 | 2 | 1 | 16 |
Faslane | 0 | 0 | 6 | 23 | 86 |
Nuclear Site Events - 2019 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 0 | 1 | 4 | 13 |
Faslane | 0 | 1 | 5 | 46 | 88 |
Nuclear Site Events - 2020 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 0 | 0 | 0 | 26 |
Faslane | 0 | 0 | 1 | 26 | 96 |
Nuclear Site Events - 2021 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 1 | 0 | 8 | 32 |
Faslane | 0 | 2 | 10 | 33 | 67 |
Nuclear Site Events- 2022 | Category A | Category B | Category C | Category D | Below Scale |
Coulport | 0 | 0 | 3 | 3 | 19 |
Faslane | 0 | 0 | 3 | 9 | 12 |
In line with Industry Good Practice and in common with other defence and civil nuclear sites, HMNB Clyde has a well-established system for raising NSERs.
NSERs are raised to foster a robust safety culture that learns from experience, whether that is equipment failures, human error, procedural failings, documentation shortcomings or near-misses.
The safety significance of all reported events remains low and are below Level 1, the lowest of the seven-point International Nuclear and Radiological Event Scale (INES).
None of the events caused harm to the health of any member of staff on the Naval Base or to any member of the public or have resulted in any radiological impact to the environment.