Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1394; Eddrachillis Bay, Area in SqKm: 101, (15/05/2012 to 21/04/2013), Standard: IHO S44ed5 Order 1a. Contract: ETV. FY 2011/12. Contractor: NetSurvey.