Samples and associated geological data are held at the British Geological Survey for Maritime Coastguard Agency (MCA), Civil Hydrography Programme (CHP), Bathymetric Survey HI1327; Bristol Channel - Scarweather Sands to Culver Sand, Area in SqKm: 498, (01/04/2010 to 01/02/2011), Standard: IHO S44ed5 Order 1a. Contract: Shallow (LT). FY 2010/11. Contractor: Fugro OSAE.