Table 21.5 Data Sources Features Data


Potentially contaminated sites


Land use information


Source MSDC


Year 2014


Coverage Study area


Confidence Medium*


Notes


Locations of sites on the MSDC register of Contaminated Land or Potentially Contaminated Land


Ordnance Survey


Google Maps 2013


Environmental Sensitivity data


RSK 2012 Study area Study area Study area High High Medium*


1:25,000 scale OS mapping


Online aerial photography


Preliminary Risk Assessment East Anglia ONE onshore Cable Route and Converter Station


Landmark Information Group


Environment Agency


2012 2013 Study area Study area Medium* High


Envirocheck GIS files from RSK Preliminary Risk Assessment


‘What’s in your backyard’ website


Flood Risk Mapping


Geological mapping


Environment Agency


British Geological Survey


2013 2001 2006


Geological memoirs


1961


Study area


1:50,000 Woodbridge & Felixstowe


1:50,000 Ipswich


Onshore electrical transmission works plus Study area


High High High High


EA Website


Solid and Drift geology sheet 208 &225


Solid and Drift geology sheet 207


British Regional Geology, East Anglia and adjoining areas, 4th Edition


*The RSK 2012 report has been given a medium confidence due to age of the data (2011). EATL are currently consulting with local authorities and EA to confirm if there is further data to be included in the assessment. This will be completed for the final ES.


21.4.3 Impact Assessment Methodology 31.


Potential impacts arising from the construction and operation of the onshore infrastructure are identified and assessed taking into account the following elements of the environmental baseline and their sensitivities:


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 21 Water Resource and Flood Risk Page 16


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