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Due to careful site selection it is considered that the majority of sensitive receptors will be avoided and therefore there will not be direct impacts upon them. Where the onshore cable route crosses sensitive features (e.g. major water bodies and four designated sites listed in paragraphs 19 and 20) direct impacts are avoided by HDD (i.e. the cables will pass beneath them).
Impacts should also be seen in the light of
other embedded mitigation such as the development of a Code of Construction Practice (CoCP) and the development of an Ecological Management Plan (EMP) (as listed in Table 4).
38.
The impact assessment will be undertaken with the embedded mitigation as the starting point (i.e. there will not be an assessment of impact followed by an assessment of residual impact).
39.
The assessment approach will use the conceptual ‘source-pathway-receptor’ model. The model identifies likely environmental impacts resulting from the proposed construction, operation and decommissioning of the windfarm and its supporting onshore electrical transmission works. This process provides an easy to follow assessment route between impact sources and potentially sensitive receptors ensuring a transparent impact assessment. The parameters of this model are defined as follows:
• Source – the origin of a potential impact (noting that one source may have several pathways and receptors);
• Pathway – the means by which the effect of the activity could impact a receptor; and
• Receptor – the element of the receiving environment that is impacted.
4.2.1 Defining and Assessing Impacts 40.
The guidance issued by IEEM for the EIA (IEEM, 2006) will be used as the basis for the steps in the assessment process and the definitions that are used in that process.
Evidence Plan
East Anglia THREE & East Anglia FOUR Offshore Windfarms