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Summary of areas of possible contaminated land close to or within the proposed construction area Site location Grid ref


Site ref


Access


during site walkover


Observations from site visit


Crossed by corridor/ substation site


landfill site, Tuddenham St Martin


2491


marked by steep. Top level of landfill is slightly undulating with no obvious capping. Concrete and brick rubble, metals, plastics, etc, protruding through surface. Gas tap noted in centre of landfill. Probably contamination to be encountered by route.


Requirement for site


investigation prior to


construction


investigation should be undertaken to detetrmine type of fill material, depth of fill, presence/ condition of groundwater within landfill, presence of any lining system.


Railway adjacent to River Gipping, west of Claydon


6124 2490


23 Yes


Railway embankment is approx 3m above surrounding land. Potential contamination near surface from railway, but HDD should avoid this. SI will identify impact prior to construction work.


Table 3: Contaminated sites located within or close to the proposed onshore cable route


HDD to pass beneath railway.


HDD to be present in this location, for which site investigation will be completed


should be followed to minimise effects of constructing through landfill. It is recommended that an action plan be produced On completion of SI, once nature of fill is better understood.


Likely actions required if


contamination is present


If contamination is encountered by SI prior to HDD, action can be taken to address this based on advice of the environmental consultant.


Outline Code of Construction Practice. Version 3.


Page 30


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