Coring by Geodrive Ltd for Wessex Archaeology. A series of 19 points along 1450m of the pegged line of the pipe trench were cored to a depth of 2.5m. Aims were to assess the sedimentation history, indicate palaeo-environmental potential, predict archaeologically sensitive areas. Base is sand with gravel lenses with an overlying floodplain alluvium. In the north of the site, significant depots of peat and organis debris were encountered at a depth of 1.8m and lower. No palaeochannels indicated. Predominately an alder carr woodland. The peats likely date to the Neolithic and pollen shows that there was a small amount of evidence for land clearance and arable practice.