Sand and aggregate resources Vaiusu bay, Apia, Western Samoa / Robert Smith

To assess the sand and gravel resources in Vaiusu Bay mapping of bathymetry and drilling of 60 jetprobe holes to a maximum penetration depth of 5.0 metres was completed. From the jetprobing data a subsurface of impermeable reef pavement was encounted in the eastern portion of the survey area. This in part has controlled the direction of where the existing dredging has taken