22.6.2.4 Impact 4: Impacts to soils
22.6.2.4.1 Landfall, onshore cable route and converter station 161. It may be necessary to excavate soil to access the cable for maintenance activities. It is anticipated that these events would be highly localised and of short duration. Soil handling would be undertaken as described in the embedded mitigation section 22.3.3. It is likely that soils would be re-used on site appropriately. Soils that cannot be reused will follow a waste hierarchy. Following implementation of measures committed to within embedded mitigation, the magnitude of this impact is therefore considered to be low and the sensitivity of local soils is considered to be low. Therefore the impact significance is considered to be negligible.
162. Routine maintenance works would be required during the operational phase; however, this access would be via jointing pits or kiosks. Maintenance may include the excavation of soil in order to access the cables. It is anticipated that these events would be highly localised, temporary and of short duration. Jointing pits will be located be located away from watercourses and adjacent to field boundaries (avoiding rootzone) or roads and appropriate off-road vehicles would be used to access each of these. Overall a negligible impact is predicted.
22.6.2.5 Impact 5: Biological contamination
22.6.2.5.1 Landfall, onshore cable route and converter station. 163. Vehicle movements would only be needed in the event of requirement to maintain cables and this would be a much lower level of movements than during construction. Mitigation measures would ensure there is no impact from biological contamination during operation.
22.6.2.6 Impact 6: Impacts to Public Rights of Way and Cycle Routes
22.6.2.6.1 Landfall and onshore cable route 164. As all diversions would be removed and PRoW reinstated post-construction no impact is predicted during operation.
22.6.2.6.2Converter Station 165. PRoWmay be subject to visual impacts during operation, these are discussed within Chapter 29 Seascape, Landscape and Visual Amenity. During operation, access along the bridleway (crossing 44) would be open and no diversion would be required, therefore no impact is predicted.
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Chapter 22 Land Use Page 47
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