Incident Reporting - Risk Matrix : Environment, Health & Safety

Incident Reporting - Risk Matrix

This page provides help with categorising the risk associated with an incident in the electronic EHS Incident Reporting system.

Use the Consequence table below to determine the severity of the incident.

Severity Level	Consequences Types
Severity Level	Health and safety	Natural Environment
V Catastrophe	Multiple fatalities, or significant irreversible effects to >50 persons	Very serious, long-term environment impairment of ecosystem functions.
IV Major	Single fatality and/or severe irreversible disability (>30%) to one or more persons
III Moderate	Moderate irreversible disability or impairment (<30%) to one or more persons	Serious medium term environment effects
II Significant	Objective but reversible disability requiring hospitalization	Moderate, short-term effects but not affecting ecosystem functions
I Negligible	No medical treatment required	Minor effects on biological of physical Environment

Use the Likelihood table below to assist in determining the likelihood of the incident occurring or re-occurring.

Likelihood (Probability)
Level	Descriptor	Description	Indicative Frequency (expected to occur)
A	Almost certain	The event will occur on an annual basis	Once a year or more frequently
B	Likely	The event has occurred several times or more in your career	Once every three years
C	Possible	The event might occur once in your career	Once every ten years
D	Unlikely	The event does occur somewhere from time to time	Once every thirty years
E	Rare	Heard of something like the event occurring else-where	Once every 100 years

Themis automatically calculates the Risk Rating from the consequence and likelihood ratings, according to the table below.

Further assistance

For help with the EHS Incident Reporting system, see: Incident Reporting Help.