epr-method (2003) - IAEA Publications - International Atomic Energy ...

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Facility emergency
Emergency class
description
Event resulting in a major decrease in the
level of protection for on-site personnel –
however, these events cannot evolve into
one (general or site-area emergency)
warranting implementation of protective
actions off the site.
For threat category I and II facilities this
could be:
- fuel handling emergency
- in-facility fire or other emergency not
affecting safety systems
- terrorist or criminal activity resulting in
hazardous on-site conditions but with no
potential to result in a criticality or
release off-site that would warrant urgent
protective actions.
For threat category III, this could be:
- a major decrease in the level of
protection provided to the core of a small
reactor (see Threat Category III in Table
II)
- loss of shielding or control for a large
gamma emitter or spent fuel
- a criticality away from the site boundary
- high doses on site approaching the urgent
protective action intervention levels
Immediate response actions
Threat category I, II and III facilities
Operator and on-site:
- Take life saving actions and give first aid on site.
- Notify off-site officials and request emergency services if needed.
- Evacuate non-essential personnel and visitors or provide special shelter on site and account for all persons on the
site consistent with Appendix 11.
- Monitor on-site personnel for contamination and ensure contaminated people or items do not leave the site
undetected.
- Provide first aid, decontaminate, estimate exposure and transport injured and exposed individuals for treatment.
- Conduct monitoring near facility to confirm that off-site protective actions are not needed.
- Provide protection from hazardous conditions for on-site and off-site emergency response personnel
- Activate partial response.
- Take actions to mitigate the emergency, provide technical assistance to control room or operating staff.
- Establish continuous communication with off-site officials.
- With off-site officials establish an integrated response under the ICS (see Appendix 13).
- With off-site officials, conduct joint media briefings at the PIC (see Appendix 14).
- Reassess the classification and revise if warranted.