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CDOIF
Chemical and Downstream Oil
Industries Forum
CDOIF is a collaborative venture formed to agree strategic areas for
joint industry / trade union / regulator action aimed at delivering
health, safety and environmental improvements with cross-sector
benefits.
Row DETR
Table Ref
Receptor
Type
Severity of Harm
Reference to
Table 2
Comments
Significant
While this level of
harm might be
significant pollution, it
is not considered a
Severe
DETR Criteria - the
lowest level of harm
that might be
considered MATTE.
Major
Catastrophic
Corresponding
Harm/Duration /
Recovery row in Table
2
The 'Severe' to
'Catastrophic' levels of
harm are considered to
be included as 'Serious'
with respect to the
COMAH definition of a
major accident.
MATTE.
Severity Level ĺ
1
2
3
4
Receptors include:
10
7
Soil or sediment
(i.e. as receptor
rather than purely
a pathway)
Contamination not
leading to
environmental
damage (as per ELD),
or not significantly
affecting overlying
water quality.
Contamination of 10-
100ha of land etc. as
per Widespread
Habitat;
Contamination
sufficient to be
deemed
environmental
damage
(Environmental
Liability Directive)
Contamination of
100-1000ha of land,
as per Widespread
Habitat;
Contamination
rendering the soil
immediately
hazardous to humans
(e.g. skin contact) or
the living environment,
but remediation
available.
Contamination of
>1000ha of land, as
per Widespread
Habitat;
Contamination
rendering the soil
immediately
hazardous to humans
(e.g. skin contact) or
the living environment
and remediation
difficult or impossible.
Land
11
8
Built environment
Damage below a level
at which designation
of importance would
be withdrawn.
Damage sufficient for
designation of
importance to be
withdrawn.
Feature of built
environment subject to
designation of
importance entirely
destroyed.
N/A
Built Environment
This is limited to Grade
1 / Cat A Listed
buildings, scheduled
ancient monuments,
conservation area, etc.
Guideline – Environmental Risk Tolerability for COMAH Establishments v1.0
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