# #
Legend
S1 P1 R1
SPZ NVZ
Source of Contamination Pathway Receptor Source Protection Zone Nitrate Vulnerability Zone
Linkage
Preferred Onshore Cable Corridor Converter Station Refined Area of Search
F
R1 Drain Topsoil R4
Reinstated topsoil Soil backfill
Sand fill
Superficial geology (mud, sands and gravels, boulder clay)
Cable P4 R2
P3
R3 Secondary A aquifer in superficial deposits SPZ - Zones 1 and 2 both crossed by cable route NVZ below entire route
Potential Contamination Sources
A full list of sources is provided in Table 7. and shown on Figure 6. A summary is provided here:
S1 - Landfill site S2 - Disused/infilled pit S3 - Disturbed ground S4 - Substation S5 - Works/depot S6 - Railway/tramway S7 - Agricultural activities S8 - RAF Base S9 - Decoy Pond S10 - Sewage works/slurry lagoons
02 01
02/10/12 DL 12/09/12 AJ
Frame updated Frame & figure no. updated
RevDateBy Comment 00 28/03/12 AJ First issue
Ref: P:\04-EA-Landscape\P41388 - East Anglia ONE Offshore Wind\05 GIS\App 20.1.5 Conceptual Site
Model.mxd
Plausible Contamination Pathways
P1 - Direct contact P2 - Inhalation of ground gas/soil gas P3 - Vertical and lateral migration of contamination in groundwater P4 - Root uptake P5 - Chemical attack of infrastructure
On-site Receptor
R1 - Vegetation R2 - Perched groundwater R3 - Secondary A aquifer R4 - Surface watercourse/drainage
Off-site Receptor
R5 - Adjacent site users R6 - Buildings and infrastructure
Inset Map Plot Scale 1:350,000
05
10 km
© Crown copyright, All rights reserved. 2012 Licence number 0100031673. © East Anglia Offshore Wind Limited 2012
East Anglia Offshore Wind
Preliminary Risk Assessment - Indicative Conceptual Site Model
Drg No
Date Rev
Layout
41388-A20.1-20.1.5
02/10/12 02
N/A
Appendix 20.1
Figure 20.1.5
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