This sampling survey has been carried out by Institute of Geological Sciences now British Geological Survey (BGS) for BGS, the survey took place in September 1975 in Mersey estuary on board a Sealand hovercraft. The purpose was to carry out marine sampling work in conjunction with the IGS Applied Geophysics Unit gravity survey. Sea-bed samples were collected by beach sampling methods and photography. These data are archived by BGS. No BGS survey report currently available, IGS 1975 annual report contains summary.

Acoustic Backscatter mosaics, H575 seabed samples and images, sediment areas and points shapefiles, sandwave areas and crests shapefiles. Collected as part of the Civil Hydrography Programme (CHP). Data and records verified by UK Hydrographic Office. Vessel - Mintaka I - Kongsberg EM 2040.

An oil and gas industry drilling hazard, debris clearance and environmental site survey acquired under licences P300, P928 between February and March 2011. The block numbers traversed were 14/26a and 20/01.

An oil and gas industry drilling hazard, debris clearance and environmental site survey acquired under licence P1829 between February and April 2011. The block numbers traversed were 38/05, 39/01 and 38/10.

An oil and gas industry route site survey acquired in January 2002. The block number traversed was 14/20.

An oil and gas industry site survey for a semi-sub rig acquired under licence P1064 between October and November 2010. The block numbers traversed were 210/29, 210/30.

An oil and gas industry site survey for a pipeline/cable route (Vixon to Viking BD) acquired in August 1999. The block number traversed was 49/17.

An oil and gas industry site survey for a jack-up rig acquired under licence P1715 between December 2010 and January 2011. The block number traversed was 49/29.

An oil and gas industry drill site investigation survey acquired under licences P1077 and E405. The block number traversed was 9/2b.

An oil and gas industry site survey for a semi-sub rig acquired under licence P098 between July and August 2012. The block number traversed was 30/2a.