Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors) > Humber Conservancy > Board of Trade Enqury into the Humber Conservancy Dredging Scheme: Deposit of Dredgings from the Hebble Shoal > Hebble Dredging Scheme: Notes on deposits on the Skitter Sand and Foul Holme Sand