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EIA topic


Change in project parameters (as applicable to each topic)


changes above the worst case changes stated above


Operation


As above – limited changes in infrastructure during operation


There would be a slight increase is surface area available for colonisation & footprint of habitat loss


Decommissioning


As above – limited changes in infrastructure to be removed at decommissioning


Fish and Shellfish Ecology Construction


There are limited changes in the infrastructure required – in the worst case one additional offshore platform and extra cable within the windfarm.


Phasing would mean that piling activities would potentially be undertaken over a longer period


Operation


As above – limited changes in infrastructure during operation


As cables will be left in situ, the only additional impact is from the removal of one additional platform


There will be greater overall footprint, disturbance of sediment (from cable installation therefore a slight increase in magnitude of effect.


Under the worst case there is one additional platform, therefore a slight increase in magnitude of effect. The period over which piling will occur will change.


There would be a slight increase is surface area available for colonisation and


Phase III Report June 2015


Given the limited increase compared with the scale of the proposed project – limited changes in magnitude of effect will not change the significance of impacts.


As above, limited changes in magnitude of effect will not change the significance of impacts.


Given the limited changes compared to the scale of the proposed project – limited changes in magnitude of effect will not change the significance of impacts.


The windfarm capacity remains up to 1200MW therefore the worst case scenarios previously considered (in terms of piling hammer energy and number of piling events) is unchanged


As above, limited changes in magnitude of effect will not change the significance of


East Anglia THREE Offshore Windfarm Page 22


The ES will update the assessment for the revised parameters.


Phasing will be discussed for construction impacts


The assessment will be updated to reflect any changes in piling timings (including potential cumulative impacts)


The ES will update the assessment for the revised parameters.


Key changes in effect/s


Likely change in impact significance


Comment


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