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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.
Supplement to Guideline – ‘Environmental Risk Tolerability for COMAH Establishments’
Complex Site Example v0.0
Page 32 of 35
Table A illustrates the summing of each risk for each consequence level within each Catchment for both unmitigated and
mitigated assessment stages. As there is the potential for each of the catchments to drain to the same ultimate receptor these
may also be added to provide the overall establishment risk as indicated in the grand total row. The site has been split like
this for ease of analysis and to help identify both the highest risk driving catchments at the site and the individual MAS which
may need further consideration.