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2007, RPS Energy, Lynn & Inner Dowsing Offshore Wind Farm, Environmental Report For Monitoring of the Disposal of Drill Arisings

2007, RPS Energy, Lynn & Inner Dowsing Offshore Wind Farm, Environmental Report For Monitoring of the Disposal of Drill Arisings

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Coastal Processes
Sedimentology

Description

Centrica Renewable Energy Ltd (CREL) is constructing an offshore wind farm and associated infrastructure at Lynn and Inner Dowsing approximately 5km from land off the coast of Skegness, Lincolnshire. As a number of proposed monopile locations required additional drilling during installation due to a hard underlying chalk formation, Centrica commissioned a field environmental survey to monitor the dispersion of drill arisings both in a near-field and far-field environment. The resulting study, carried out by RPS Energy, was based upon a suspended sediment survey, with fifteen sediment traps deployed at 100m, 1km and 5km distance from the drilled monopole locations. The survey was carried out in two phases, relating to the suspended materials recovered after 8 days, and the drilling of one monopile foundation (LN02), and a longer 30 day deployment following the combined effects of partially drilling 5 foundations. Survey operations included some preliminary seabed sampling and photography at and around some of the monopile locations prior to and immediately after drilling.

Report

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2007, RPS Energy, Lynn and Inner Dowsing offshore wind farms, Environmental Report For Monitoring of the Disposal of Drill Arisings