locations within the East Anglia THREE site and offshore cable corridor. This is due to the large variety of threat items that may be present across this Site. This would provide an analysis of the contacts at the location and a sign-off certificate would be provided to the contractor to determine that the risks associated with site investigation are reduced to As Low As Reasonably Practicable (ALARP).
Upon review of geophysical data (including side scan sonar and a detailed magnetometer survey) and other available data, recovery operations using Remotely Operated Vehicles (ROV) would be undertaken prior to construction to confirm details of any suspected UXO.
A UXO operational plan will be implemented. The plan would include the nomination of an experienced crew member to be trained as a UXO co- ordinator, enabling them to recognise potential UXO and equipping them with the knowledge on how to react following the discovery of a UXO.
Crew level munition safety and awareness briefings within the inductions and toolbox talks.
Munition recognition posters for use on-board all vessels.
Where necessary micro-siting of infrastructure to avoid potential UXO based on further detailed investigation.
Subject to the findings of the enhanced risk assessment, where necessary a magnetometer survey covering the landfall location, including the inter-tidal and beach area at Bawdsey, would be required pre construction, the results of which would feed into a risk assessment.
A Detailed Threat and Risk Assessment is required to determine the risk posed by pipe mines and landmines at the landfall site of the export cable.
Preliminary Environmental Information May 2014
East Anglia THREE Offshore Windfarm
Chapter 18 Infrastructure and other users Page 11
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