King Edward Point Wharf Redevelopment Project Environmental Impact Assessment BAS Environment Office July 2019 (Revision 1) British Antarctic Survey High Cross, Madingley Road Cambridge, CB3 0ET 1 This page intentionally left blank 2 Contents Non-Technical Summary ....................................................................................................................... 11 1. INTRODUCTION ............................................................................................................................. 16 1.1. Background to Project........................................................................................................... 16 1.2. Overview of Proposed Development .................................................................................... 16 1.2.1. KEP Wharf ..................................................................................................................... 16 1.2.2. KEP Slipway ................................................................................................................... 16 1.2.3. Sourcing rock fill material ............................................................................................. 17 1.3. Purpose and Scope of Document.......................................................................................... 17 2. APPROACH TO ENVIRONMENTAL ASSESSMENT ........................................................................... 18 2.1. Statutory Requirements ........................................................................................................ 18 2.2. EIA Methodology................................................................................................................... 19 2.3. Sustainability Strategy .......................................................................................................... 21 2.4. Consultation .......................................................................................................................... 23 3. DESCRIPTION OF PROPOSED DEVELOPMENT 1 – KEP wharf and associated structures.............. 24 3.1. Purpose and Need ................................................................................................................. 24 3.2. Location ................................................................................................................................. 25 3.3. Site Investigations completed in 2018-19 season ................................................................ 25 3.3.1. Trial pits ......................................................................................................................... 26 3.3.1.1. Contamination Risk Assessment ........................................................................... 26 3.3.2. Bathymetry.................................................................................................................... 26 3.4. Design Details & Scope of Preferred Option ......................................................................... 27 3.4.1. Wharf ............................................................................................................................ 28 3.4.2. Dolphin & Walkway ....................................................................................................... 30 3.4.3. Shoreline Moorings ....................................................................................................... 31 3.4.4. Slipway .......................................................................................................................... 32 3.4.5. Scouring of seabed by vessel operation ....................................................................... 33 3.5. Alternatives considered ........................................................................................................ 35 3.5.1. Do nothing ..................................................................................................................... 35 3.5.2. Do minimum ................................................................................................................. 35 3.5.3. Demolish and rebuild the existing wharf ...................................................................... 35 3.5.4. Rebuild the wharf at an alternative location ................................................................ 36 3.5.5. Alternative designs ........................................................................................................ 37 3.6. Overview of Works ................................................................................................................ 41 3.7. Site Set Up Areas ................................................................................................................... 41 3.8. Construction Methodology ................................................................................................... 45 3 3.8.1. Temporary Works ......................................................................................................... 45 3.8.2. Wharf Extension ............................................................................................................ 45 3.8.3. Mooring Dolphin ........................................................................................................... 49 3.8.4. Onshore Moorings ........................................................................................................ 51 3.8.5. Slipway .......................................................................................................................... 53 3.9. Construction Materials ......................................................................................................... 53 3.10. Equipment & Vehicles ....................................................................................................... 54 3.11. Personnel .......................................................................................................................... 54 3.12. Predicted Lifespan ............................................................................................................. 56 3.13. Plans for Decommissioning ............................................................................................... 56 4. DESCRIPTION OF PROPOSED DEVELOPMENT 2 – Quarrying ........................................................ 57 4.1. Purpose and Need ................................................................................................................. 57 4.2. Site Investigations completed in 2018/19 ............................................................................ 57 4.3. Location ................................................................................................................................. 58 4.4. Alternatives considered ........................................................................................................ 59 4.4.1. Importing rock fill .......................................................................................................... 59 4.4.2. Sourcing rock at other local areas ................................................................................. 59 4.5. Overview of works ................................................................................................................ 59 4.5.1. Quarry 1 (main site) ...................................................................................................... 60 4.5.2. Quarry 2 (back-up site) ................................................................................................. 62 4.6. Personnel and equipment & vehicles ................................................................................... 63 4.7. Transport of material ............................................................................................................ 63 5. DESCRIPTION OF OPERATIONAL PROCEDURES ............................................................................ 64 5.1. Fuel management and oil spill response .............................................................................. 64 5.1.1. BAM Refuelling Procedure ............................................................................................ 64 5.1.1.1. Procedure for refuelling with towable bowser ..................................................... 65 5.1.2. BAM Emergency Oil Spill Contingency .......................................................................... 66 5.1.3. BAM Spill Response Equipment .................................................................................... 68 5.2. Waste management (refer to SWMP) .................................................................................. 68 5.3. Biosecurity............................................................................................................................. 69 6. DESCRIPTION OF SUPPORT ACTIVITIES ......................................................................................... 70 6.1. Shipping – cargo .................................................................................................................... 70 6.2. Transport – personnel ........................................................................................................... 70 6.3. Accommodation .................................................................................................................... 70 6.4. Energy use ............................................................................................................................. 71 6.5. Water ...................................................................................................................................