4 CONCLUSIONS AND RECOMMENDATIONS
The PRA has identified a number of potentially complete pollutant linkages with risk categories of moderate. These require further investigation to determine whether the pollutant linkage is complete.
It is recommended that site walkover visits should be made to potentially contaminating sites within close proximity of the Preferred Onshore Cable Corridor (ie within 100m of the centreline) and at the Converter Station Refined Area of Search. A list of sites of potential contamination concern requiring site visits is provided in Table 7. These sites are also shown on Figure 20.1.6.
In addition to inspecting the site for current evidence of pollution, it is also important to determine the exact position of the sites, in relation to the proposed Preferred Onshore Cable Corridor. It is likely that some locations shown on historical map editions may not be completely accurate when compared to the most up to date maps, and this may prove that a site thought to be crossed by the route it slightly further away, or vice versa.
Further to completion of site walkovers, it will be necessary to design a site investigation to provide additional site specific information with respect
to areas where there is
concern that complete pollutant linkages may result in moderate (or greater) risks to human health, or to other sensitive receptors such as controlled water or SSSIs.
Table 7: Locations of potential contamination concern
(Note: a walkover of these sites was undertaken for the purposes of the Environmental Statement and the findings are reported in Volume 3, Chapter 20.) Site
Location and grid reference
On-site historical Areas of artificial ground
Historical tramway
Area of artificial ground Areas of artificial ground
Sand pit/ landfill site
Old sand pit/area of possible disturbed ground
Chalk pit
On-site present day Bawdsey SSSI*
East Anglia Offshore Wind Limited
Preliminary Risk Assessment, East Anglia ONE Windfarm 41388-PRA(03)
Both banks of River Deben (6312 2398 and 6307 2396)
East of Kirton (6283 2400) Kirton Lodge, 6281 2409
Both banks of Martlesham Creek (6263 2472 and 6263 2475)
Tuddenham St Martin (grid reference of centre 6194 2491)
Lark’s Hill, crossed by proposed route at 6188 2490
North of Mockbeggers Hall, west of Claydon (6129 2488), within Preferred Onshore Cable Corridor corridor
Landfall (6345 2389) Site ref. 5+6 9 11 12+13 17 18 22
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