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- DEPZ distances at UK nuclear installations
DEPZ distances at UK nuclear installations
Where there is a potential for off-site release of radioactivity within the UK that would require implementation of countermeasures, detailed emergency planning zones (DEPZ) are designated. The Office for Nuclear Regulation determines the size of DEPZ in the UK. They are defined based on the most significant release of radioactive material or radiation from an accident that can be reasonably foreseen. The size of DEPZ differs site by site in the UK, with due consideration given to individual factors associated with each site. The current DEPZ relating to UK sites are as follows.
Local authorities have a legal responsibility to make plans for dealing with emergencies, including within the designated DEPZ.
| Type | Site | Radial distance (km) |
|---|---|---|
| Nuclear Power Plant | Berkeley | 1 |
| Trawsfynydd | 1.3 | |
| Hunterston A & B | 2.4 | |
| Chapelcross | 2 | |
| Dungeness A & B | 2.4 | |
| Hinkley A & B | 3.5 | |
| Sizewell A & B | 2.4 | |
| Bradwell | 2.4 | |
| Wylfa | 1.6 | |
| Oldbury | 1 | |
| Heysham 1 & 2 | 1 | |
| Hartlepool | 1 | |
| Torness | 3 | |
| Chemical Plants etc | Sellafield | 2 |
| Springfields | 1 | |
| Capenhurst | 1 | |
| Dounreay | 1.15 | |
| Harwell | 1.2 | |
| Defence | Aldermaston | 3 |
| Burghfield | 1.5 | |
| Naval Dockyards | 2 | |
| Operational Berths | 1.5 |
Nuclear Site Licence Conditions (see LC11: Emergency Arrangements)