MCU14/0024 - Response to Information Request - Attachment 3

PRACTICE NOTE GUIDELINES FOR LANDSLIDE RISK MANAGEMENT 2007
APPENDIX C: - QUALITATIVE TERMINOLOGY FOR USE IN ASSESSING RISK TO PROPERTY (CONTINUED)

QUALITATIVE RISK ANALYSIS MATRIX - LEVEL OF RISK TO PROPERTY

 

 

 

 

 

 

 

 

 

 

 

 

 

LIKELIHOOD C ONSEQUENCES TO PROPERTY (With Indicative Approximate Cost of Damags)
Indicative Value of | 1: CATASTROPHIC T MAJOR © MEDIUM + MINOR
Approximate Annnal 200% SO 2 ae INSIGNIFICANT
Probability os
A - ALMOST CERTAIN ir! H Mor L (5)
B- LIKELY lie ESne s L
C - POSSIBLE we AP M M VL
D - UNLIKELY it pecs M L it VL
E - RARE iw M o L VL VL
F - BARELY CREDIBLE 1g? L VL ¥L VL VL

 

 

 

 

 

 

 

 

 

Notes: (2) For Cell ‘ike may des ames such ch that a consequence ee Risk

& an

 

RISK LEVEL IMPLICATIONS

 

Rick Level Example Implications (7)
Unaccepable without reamert. Extensive dewiled investigation and research, planting and implementation of reamment

‘option: essential te reduce risk to Low, may be too expensive and not practical Work likely to cost more than value of the

   

 

 

 

 

 

 

 

 

 

 

et sed
H . HIGH ESE : Cnaccapable without eamment Detaled invesdgation, planaog and implementation of ieatment opnons required to reduce
= . tisk to Low, Work would cost a sudstamtial sum in relation to the value of the propery.
Mar De tolerated in certs circumstances (object to regulator’: approval) bur require: invevtigation, plancine and
M MODERATE RISK implementation of razment options to reduce the risk to Low. Treatment options to raduce to Low msi should be
implemented a: 3000 a3 practicable
L LOW RISK Usually acceprable to regulators. Where treatment has bean requited to reduce the nek to this level, ongoing manmtenance is
ee i ——
VL VERY LOW RISE Acceptable. Manage by aormal slope maiotenance procedures.
Note: (7) The anplications for 2 particular sinuation are to be determined by all parties to the risk assessment and may degend on the rature of che property at risk, these are only

20ve0 a5 a general made