Crossrail Line 1 Mott MacDonald Assessment of Water Impacts
Technical Report Cross London Rail Links Limited
203357/31/Final/February 2005 App F - Notes.doc/
F-1
Appendix F: Impact Register
Notes on Impact Tables and Mapping
The impact tables presented in Appendix F should be read in
conjunction with the main report text given in Volume 1 of the
Assessment of Water Impact Technical Report.
Certain impacts have been selected for presentation on the
impact mapping. The impacts selected include all those with:
• Significant residual impacts.
• Minor non-significant residual impacts, including those with
extensive compensation/mitigation and statutory consultee concerns
which cannot be fully mitigated
In general, impacts that are not shown are those assessed as
being:
• Not significant.
• Becoming not significant after the application of routine good
practice.
• Being designed or managed out altogether through
mitigation.
The impacts which have been selected for presentation on the
impact mapping are shaded in the final column (residual impacts) of
the impact register tables shaded.
Overall Impact
The severity categories take into account whether the impact is
temporary or permanent
Low Mod High
R Not significant Remote
O Significant Occasional
L More likely to happen than not
E Expected to happen
Severity categories
Like
lihoo
d
Particularly significant
