2 David Low Way - Attachment 6 - UXO Assessment - OPEC

                                                                              OPEC - 2 David Low Highway, Castaways Beach
                                                                                                 Rev 02 – AFU – 10 Aug 2017

Risk                 Effect of uncertainty on objectives. A function of the probability of the occurrence of an event
                     and the consequence of that event.
Event                Occurrence or change of a particular set of circumstances. Sometimes referred to as an
                     “incident” or “accident”. An event without consequences can also be referred to as a “near
                     miss”, “incident”, “near hit” or “close call”.
Incident/            Incident: an event that gives rise to an accident or has the potential to lead to an accident
         2
Accident             (HSE practitioners often refer to these as being ‘Near Misses’)
                     Accident: an undesired event which results in harm. (Note: Modified from definition in OHSAS
                     18001:1999)
Mitigation           Risk treatment - process to modify risk. When used in relation to EOD/UXO: A feature that
                     reduces, limits, or controls the consequences of a munition.
ALARP                Relates to management of risk to a point where it is ‘As Low As Reasonably Practicable’
                     (ALARP)

Qualitative Risk/Probability Terms Used in this Assessment
Defence                                                                                                        Alternative
                                                                          3
Phrase &                                            Defence Description                                        Probability
 Score                                                                                                           Phrase
                Expected to occur in most circumstances.
                Guide: Is expected to occur multiple times within a year or incident is clearly
    Almost
                imminent.                                                                                       Very High
    Certain
                For Safety Risks: There is significant exposure to the hazard and therefore it is
                almost certain that the risk event will occur or incident is clearly imminent.
                Probably occur in most circumstances.
                Guide: Is expected to occur approximately once per year.
     Likely                                                                                                        High
                For Safety Risks: There is regular exposure to the hazard and therefore, it is likely
                that the risk event will occur.
                Could occur at sometime.
                Guide: Likely to occur approximately once every 5 years.
    Possible                                                                                                     Medium
                For Safety Risks: There is periodic exposure to the hazard and therefore, it is
                possible that the risk event will occur.
                Not expected to occur.
                Guide: Likely to occur approximately once every 5 – 10 years.
    Unlikely                                                                                                       Low
                For Safety Risks: There is sporadic exposure to the hazard and therefore, it is
                unlikely that the risk event will occur.
                Exceptional circumstances only.
                Guide: Likely to occur with less frequency than once every 10 years.                            Extremely
     Rare
                For Safety Risks: There is little or no exposure to the hazard and therefore, it is                Low
                rare that the risk event will occur.




2
    IMAS 04.10, ‘Glossary of mine action terms, definitions and abbreviations’, 2nd Ed., Amdt 7, Aug 2014
3
    SDD Risk Management Framework Aide Memoire; 7 SEP 2016 V16

For use only in relation to the specified project
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