Health & Safety
People
P
Catastrophic
Multiple fatalities. Permanent
5 disabilities and / or irreversible health
effects (>=3).
Major
4 Fatal injury. Permanent disabilities
SEQUENCE / IMPACT
and/or irreversible health effects (<3).
CONSEQUENCE / IMPA
Significant
Significant injury with work absence
3 (LTI). Partial permanent disability.
Significant but reversible health effects
with work absence.
Minor Injury (RWC) or minor / short
Minor
2 term reversible health effect affecting
work performance.
Minimal
Negligible injury effect (FAC/MTC).
1 Negligible health effect not affecting
work or causing disability.
DNO RISK ASSESSMENT MATRI
Environment & Sustainability
E
Widespread and permanent ecological damage.
Significant contribution to regional environmental
decline. Significant remediation effort required over
period > 1 month. Sustained commitment to remedial
efforts for ecology and resource recovery.
Severe lasting ecological damage to immediate vicinity.
Widespread impact with major contribution to regional
environmental decline. Major mitigation effort required
over a period of 1 month. Potential remediation efforts
required to assist natural ecological recovery.
Uncontained or sustained release impacting on the
immediate vicinity. Limited damage which is easily
remediated over a short term.
Localised minimal impact on ecosystem. Any reduced
environmental quality is short lived with no remedial
effort required.
Little or no known impact on ecosystem. Contained
locally with no remediation required.
ASSESSMENT MATRIX
Asset
A
Business ceases to operate or may continue to operate
with substantial damage and disruption leading to losses >
$100m (replacement plus deferred revenue) (or from civil
a/o criminal litigation). Irreparable damage to supplier and
customer relationships.
Business continues to operate but with major damage and
disruption leading to losses of between $10m and $100m
(replacement plus deferred revenue or from civil a/o
criminal litigation) . Significant damage to supplier and
customer relationships which can be overcome over time.
Business continues to operate but with moderate
disruption leading to losses of between $1m and $10m
(replacement plus deferred revenue) (or from civil a/o
criminal litigation) . Some damage to supplier and
customer relationships which is quickly overcome.
Business continues to operate but minor damage short-
lived disruption to operation resulting in revenue losses
between $100k and $1m or negative impact on
relationships.
Business continues to operate with negligible disruption.
Insignificant damage or loss of systems less than $100k
EVENTS PER YEAR
Reputation
R
International public concern. Extensive adverse
attention in the national and international media.
International /national political concern with
restrictive measures and/or impact on grant of
5
licenses. International mobilization of action groups.
National public awareness and concern. Extensive
adverse attention in the national media.
Regional/national political concern with potentially
restrictive measures and/or impact on grant of
4
licenses. National mobilization of action groups.
Regional public awareness and concern. Extensive
adverse attention in local media and contact from
pressure groups. Slight national media and/or
local/regional political attention. Adverse stance of
3
local government and/or action groups.
Some local public awareness and concern. Some
media and/or local political attention. Some local
government interest. No National Government 2
interest.
Public awareness may exist, but there is no public
concern. Limited local media and pressure group
interest. No National or Local government interest.
1
PROBABILITY
Very Unlikely Unlikely
10-5 10-4 10-3
Extremely unlikely but
has occurred in the Has happened several
times in the Industry
Industry
1 2
8 9
6 7
3 5
2 3
1 2
PROBABILITY
Probable Likely
10-3 10-2 10-1
Has happened at the
location more than once
Has happened in the
Organisation and/or is a/o several times in the
organisation a/or is a
common in industry common occurrence in
industry
3 4
10 11
8 10
6 8
4 6
3 4
Very Likely
10-1 10 Menu +
Instruction
Has happened or is likely
to happen several times
at the location in a year
a/o is the cause of
incidents in industry
multiple times per year
5
Quarterly risk review
12
of all risks at this
consequence level as
part of MAH process
11
10
