the route would be revisited for the construction of the subsequent projects for the same time periods. Although the land would be taken out of use up to three times, given the smaller area used for cable installation on subsequent projects, it is considered that this cumulative impact would be no greater than minor adverse significance.


22.7.1.2 Cumulative Impact 2: Environmental Stewardship Schemes 191. For construction of the first project construction would take place for up to 10 weeks at landfall, up to 44 weeks along the onshore cable route and up to 55 weeks at the converter station location. All land would be reinstated with exception of the permanent structures at the converter station compound. Following this, sections of the route would be revisited for the construction of the subsequent projects for the same time periods. Although the land would be taken out of use up to three times, given the smaller area used for cable installation on subsequent projects it is considered that this cumulative impact would be no greater thanminor adverse significance.


22.7.1.3 Cumulative Impact 3: Land drainage 192. For construction of the first project all water crossings would be in place and ducted prior to construction of subsequent projects. There would be a minor adverse impact from the first project (see section 22.6.1.3). There would be limited cumulative impact fromsubsequent projects as disturbance to drainage infrastructure would be limited and there would be little spoil from jointing pit excavation, overall this impact would be negligible. The cumulative impact of undertaking trenching once and up to two further cable pulling operations is not considered to increase above minor adverse.


22.7.1.4 Cumulative Impact 4: Impacts to soils 193. The construction of the first project would lead tominor adverse impacts (see section 22.6.1.4). Impacts from cable-pulling into pre-installed ducts for subsequent projects would be negligible (in line with the assessment of Scenario 1) therefore the cumulative impact of all three projects is considered to remain minor adverse.


22.7.1.5 Cumulative Impact 5: Biological contamination 194. Due to distance from possible contamination sources, no impact is predicted at landfall or converter station (see section 22.6.1.5).


195. Given the distance to the nearest reported source of contamination and assuming adherence to embedded mitigation, the cumulative impact for the onshore cable route would be negligible (see section 22.6.1.5).


Preliminary Environmental Information May 2014


East Anglia THREE Offshore Windfarm


Chapter 22 Land Use Page 56


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