22.9 Summary
216. This section summarises the main findings from the impact assessment. This is outlined in Table 22.16.
217. The onshore electrical transmission works including access would cross land in agricultural use. This land is predominantly of low ALC grade (between grades 2 and 3), with the exception of the converter station which is located in grade 2 land. The majority of the land at landfall, along the onshore cable route and at the converter station is included under an ESS. The onshore cable route would also need to cross land drains. These receptors are considered to be highly sensitive. An ALO would be employed to undertake pre-construction land surveys to provide a baseline for reinstatement following the works, as well as to assist with appropriate micro-siting of works. Following mitigation no significant impacts are predicted to land take, ESS or land drains.
218. Several different soil types would be crossed by the onshore transmission works, however the value of these soils was considered to be low. A CoCP would be produced, incorporating a number of requirements to apply best practice techniques to all aspects of the project. This document would ensure that the potential risks relating to ground or groundwater contamination do not result in a significant impact during the project. Key aspects of the CoCP would include removal, storage and reinstatement of topsoil and subsoil layers; vehicle control to prevent soil damage by traffic movements; pollution control measures; fuel and materials storage and waste management. Following adherence to CoCP, no significant impacts are predicted to soils as a result of the proposed East Anglia THREE project.
219. The landfall and onshore cable route cross a number of PRoWs. All crossed PRoWs would be temporarily closed and a diversion put in place, avoiding disturbance to users and avoiding any significant impacts. The bridleway near to the converter station may experience some visual impacts, which are discussed in Chapter 29 Seascape, Landscape and Visual Amenity.
220. The landfall and onshore cable route cross a number of utilities related to domestic services for gas, electricity, water and sewerage connections. EATL would identify services on the ground prior to construction in consultation with utility providers, and undertake utility crossings or diversions in accordance with the appropriate standards for such crossings or works, avoiding any potential impacts to utilities.
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Chapter 22 Land Use Page 60
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