Table 58. Consequence Classification
A. Insignifican t Minor localized environmental harm rectified within hours. No protected habitat or species affected
B. Minor
C. Moderate
D Major
Category
E. Catastrophic
Environmental
Minor transient environmental harm that requires days for recovery. No protected habitat or species affected.
Significant environmental harm that requires weeks for recovery. Environmental incident involving
Very serious long term environmental harm or contamination that takes years
Severe environmental harm or contamination resulting in permanent environmental damage. Endangered species and habitat destroyed Single or multiple fatalities
to recover. Damage to protected species or habitat
protected species or habitat
Health & Safety of People
No injuries requiring any treatment
First aid treatment
Medical treatment required, restricted work injury
Injuries resulting in, lost time, permanent disability, amputation or surgery
Table 59. Risk Level Classification Matrix
Consequence
Likelihood
A Insignificant
B Minor
C Moderate
D Major
E Catastrophic
Almost Certain High (11)
High (16)
Extreme (20)
Extreme (23)
Extreme (25)
Likely
Moderate (7)
High (12)
High (17)
Extreme (21)
Extreme (24)
Possible
Low (4)
Moderate (8)
High (13)
Extreme (18)
Extreme (22)
Unlikely
Low (2)
Low (5)
Moderate (9)
High (14)
Extreme (19)
Rare
Low (1)
Low (3)
Moderate (6)
High (10)
High (15)
L =
Low (1-5)
Broadly acceptable – Manage by routine procedures
M =
Moderate (6-9)
Tolerable – with identified controls fully implemented
H =
High (10-17)
Undesirable – Additional controls required to reduce risk
E =
Extreme (18-25)
Intolerable – Do not start activity
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Wulguru Technical Services Pty Ltd – Supporting Information to Amend an Environmental Authority
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