Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1495; Orford Ness to Southwold, Area in SqKm: 796, (13/09/2016 to 15/03/2017), Standard: IHO S44ed5 Order 1a. Contract: Shallow. FY 2016/17. Contractor: Gardline.