Estate Service Asset - PDO

Petroleum Development Oman
Estate Services Asset
Environmental Assessment:
2002 Review and Update
APPENDIX 3: PDO'S ENVIRONMENTAL RISK EVALUATION CRITERIA
Rating of Consequence of Effect on Environment
Slight effect: Local environmental damage. Within the fence and within
systems. Negligible financial consequences
Minor effect: Contamination. Damage sufficiently large to attack the
environment. Single exceedance of statutory or prescribed criterion. Single
complaint. No permanent effect on the environment.
Localized effect: Limited loss of discharges of known toxicity. Repeated
exceedance of statutory or prescribed limit. Affecting neighborhood.
Major effect: Severe environmental damage. The company is required to
take extensive measures to restore the contaminated environment to its
original state. Extended exceedance of statutory limits
Massive Effect: Persistent severe environmental damage or severe nuisance
or nature conservancy extending over a large area. In terms of commercial or
recreational use, a major economic loss for the company. Constant, high
exceedance of statutory or prescribed limits
A.
Very
low:
Not
heard of
but could
occur
Rating of Frequency of Occurrence
B. C.
Low: Medium
Has Has
occurred occurred
in other in oil
industry and gas
industry
LOW RISK
MEDIUM RISK
HIGH RISK
D.
High:
Occurs
several
times a
year in
oil and
gas
industry
E.
Very
high:
Occurs
several
times a
year in
PDO
EXTREME
RISK
HMR Environmental Engineering Consultants A3 - 1
Oman’s Environmental Consultancy
HMR/1501/HES