19.4.3.3 Impact significance 35.


Following the identification of receptor sensitivity and magnitude of the effect, it is possible to determine the significance of the impact. A matrix as presented in Table 19.8 will be used wherever relevant.


36.


The impact significance is then determined by considering magnitude in relation to the sensitivity of the receptor impacted, as demonstrated by the matrix presented in Table 19.8.


Table 19.8 Impact Significance Matrix Sensitivity


High High


Medium Low


Major Major


Moderate Negligible Minor Medium Major


Moderate Minor


Negligible Magnitude Low


Moderate Minor Minor


Negligible Negligible Minor


Negligible Negligible Negligible


No change


No impact No impact No impact No impact


37. Where an impact has been assessed as major or moderate, this has been deemed to be significant for the purpose of the EIA. Where an impact has been assessed as minor, negligible or no impact, this has been deemed as not significant in terms of the EIA.


38.


Embedded mitigation and existing commitments to good practice are discussed in section 19.3, and are referred to throughout the impact assessment. The impact assessment takes into account the embedded mitigation before coming to a conclusion of the potential impact to a receptor. If any additional mitigation is required, this is included within the impact assessment in section 19.6, and a description of any residual impact post-mitigation is provided.


19.4.4 Cumulative Impact Assessment 39.


For a general introduction to the methodology used for the Cumulative Impact Assessment, please refer to Chapter 6 EIA methodology. This chapter will focus on those cumulative impacts that are specific to soils, geology and ground conditions.


40.


The further details of the methods used for the cumulative impact assessment, see section 19.7.


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 19 Soils, Geology and Ground Condition Page 20


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