Seven cable tool holes have been drilled to investigate foundation conditions for new silos at the Port Pirie Grain Terminal. The drilling penetrated a succession of unconsolidated sediments which showed some lateral variation. From 0 to 12 metres artificial fill and sands, sllts and clays of generally very low bearing capacity were found. Saline groundwater was encountered at shallow depths. Below 12 metres the Hindmarsh Clay Formation was penetrated. This is a stiff to very stiff clay with some sandy lenses. The Hindmarsh Clay should have adequate bearing capacity for the rounding of end bearing piles for the silo foundation.