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TLSB Environmental Statement Addendum November 2016

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TLSB Environmental Statement Addendum November 2016 Tidal Lagoon Swansea Bay Plc Tidal Lagoon Swansea Bay Town & Country Planning Act 1990 (as amended) 275kV Cable Route – Planning Application TLSB Environmental Statement Addendum November 2016 www.tidallagoonswanseabay.com Tidal Lagoon Swansea Bay Plc Document title TLSB 275kV ES Addendum Document reference TLSB-TCPA-275 Cable Route-ES Addendum- Nov 16-1.0 Revision number 1.0 Date 17/11/2016 Version history Revision Date Description Author(s) Reviewer(s) Approval 1.0 17/11/2016 Draft 275kV ES RH FC Addendum 1 Tidal Lagoon Swansea Bay Plc – TLSB ES Addendum: 275kV Cable Route TLSB-TCPA-275 Cable Route-ES Addendum-Nov 16-1.0 Tidal Lagoon Swansea Bay Plc Table of Contents 1 Introduction ............................................................................................................ 5 1.1 The Project ............................................................................................................................... 5 1.2 Purpose and scope ................................................................................................................... 5 1.3 Structure ................................................................................................................................... 7 2 Site selection option and appraisal .......................................................................... 8 2.1 Overview................................................................................................................................... 8 3 Planning and Policy Context ..................................................................................... 9 3.1 Introduction .............................................................................................................................. 9 3.2 Neath Port Talbot County Borough Council (NPTCBC) Local Development Plan ..................... 9 4 Coastal processes, sediment transport and contamination ..................................... 11 4.1 Introduction ............................................................................................................................ 11 4.2 Assessment of impacts ........................................................................................................... 11 5 Marine water quality ............................................................................................. 12 5.1 Introduction ............................................................................................................................ 12 5.2 Assessment of impacts ........................................................................................................... 12 6 Intertidal and subtidal benthic ecology .................................................................. 13 6.1 Introduction ............................................................................................................................ 13 6.2 Assessment of impacts ........................................................................................................... 13 7 Fish including recreational and commercial fisheries .............................................. 14 7.1 Introduction ............................................................................................................................ 14 7.2 Assessment of impacts ........................................................................................................... 14 8 Marine mammals .................................................................................................. 17 8.1 Introduction ............................................................................................................................ 17 8.2 Assessment of impacts ........................................................................................................... 17 9 Coastal birds .......................................................................................................... 18 9.1 Introduction ............................................................................................................................ 18 9.2 Assessment of impacts ........................................................................................................... 18 10 Terrestrial ecology ................................................................................................. 19 10.1 Introduction ............................................................................................................................ 19 10.2 Assessment of impacts ........................................................................................................... 19 10.3 Crymlyn Burrows SSSI ............................................................................................................. 19 10.4 Bare ground, ephemeral and short perennial vegetation...................................................... 20 10.5 Fabian Way Conservation Verge ............................................................................................ 21 2 Tidal Lagoon Swansea Bay Plc – TLSB ES Addendum: 275kV Cable Route TLSB-TCPA-275 Cable Route-ES Addendum-Nov 16-1.0 Tidal Lagoon Swansea Bay Plc 10.6 Reptiles ................................................................................................................................... 21 Environmental Management Requirements ...................................................................................... 21 Delivery Strategy ................................................................................................................................ 21 Crymlyn Burrows SSSI 275 kV cable route: Habitat manipulation ..................................................... 22 Crymlyn Burrows SSSI 275 kV cable HDD reception pit: Habitat manipulation ................................. 22 10.7 Terrestrial Invasive Non Native Species (INNS) ...................................................................... 24 10.8 275 kV CEMP .......................................................................................................................... 24 11 Seascape and landscape visual impact assessment ................................................. 25 11.1 Introduction ............................................................................................................................ 25 11.2 Assessment of impacts ........................................................................................................... 25 12 Navigation marine transport assessment ............................................................... 26 12.1 Introduction ............................................................................................................................ 26 12.2 Assessment of impacts ........................................................................................................... 26 13 Onshore transport assessment .............................................................................. 27 13.1 Introduction ............................................................................................................................ 27 13.2 Assessment of impacts ........................................................................................................... 27 14 Air Quality ............................................................................................................. 29 14.1 Introduction ............................................................................................................................ 29 14.2 Assessment of impacts ........................................................................................................... 29 15 Hydrology and flood risk ........................................................................................ 30 15.1 Introduction ............................................................................................................................ 30 15.2 Assessment of impacts ........................................................................................................... 30 16 Land quality and hydrogeology .............................................................................. 31 16.1 Introduction ............................................................................................................................ 31 16.2 Assessment of impacts ........................................................................................................... 31 17 Noise and vibration ............................................................................................... 33 17.1 Introduction ............................................................................................................................ 33 17.2 Assessment of impacts ........................................................................................................... 33 18 Cultural heritage marine archaeology .................................................................... 35 18.1 Introduction ............................................................................................................................ 35 18.2 Assessment of impacts ........................................................................................................... 35 19 Cultural heritage terrestrial archaeology and historic landscape ........................ 36 19.1 Introduction ............................................................................................................................ 36 19.2 Assessment of impacts ..........................................................................................................
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