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19 SOILS, GEOLOGY AND GROUND CONDITION


19.1 Introduction 1.


This chapter considers the potential impacts of the proposed East Anglia THREE project on soils, geology and ground conditions. This chapter provides an overview of existing soil and geological conditions including the presence of areas of potential contamination. The focus of the soils assessment is on the potential for contamination to be present rather than assessing soil quality in the context of an agricultural resource, which is discussed in Chapter 22 Land Use. Instead, the presence of potential contamination is considered in the context of risk to sensitive receptors such as site workers, future site users, soils, geology and groundwater from activities proposed in the construction and operation of the development.


2.


Land quality is not considered to be a receptor in its own right within this chapter. Instead the focus is on the potential pollutant linkages between contaminated land and / or groundwater and the soil, groundwater environment and other sensitive receptors, such as designated ecological sites. Any potential impacts to the groundwater and surface water environments are discussed in Chapter 21 Water Resources and Flood Risk.


3.


The chapter provides an assessment of the potential impacts of two methods for installing the onshore cable for East Anglia THREE and considers cumulative impacts of existing and proposed projects. Further information regarding the general approach taken towards impact assessment is discussed in Chapter 6 Environmental Impact Assessment (EIA) Methodology. Consistent with this approach, topic specific receptor sensitivity and magnitude of effect definitions have been provided within section 19.4. This chapter has been prepared by Royal HaskoningDHV.


4. 5.


National Policy Statement (NPS) guidance in relation to geology and ground condition is discussed in section 19.4.1.


The onshore electrical transmission works for East Anglia THREE fall within the same area covered by the assessment of East Anglia ONE, therefore, the data collected for that project forms the baseline for this assessment. The East Anglia ONE Preliminary Risk Assessment for Ground Conditions and Contamination is presented in Appendix 19.1.


6.


It should be noted that this chapter has the potential to interact with other chapters within the Preliminary Environmental Information Report (PEIR), these are covered as follows:


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 19 Soils, Geology and Ground Condition Page 1


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