Work undertaken by GCS Water and Environmental Consultants of South Africa (GCS) during the course of the pre-feasibility study showed that the HA8 water resource had limited expansion potential.
As a result, SkyTEM Surveys of Denmark, an airborne geophysical contractor specialising in water exploration were contracted to fly a 5,000km electromagnetic survey with the aim of expanding the HA8 discovery and investigating a new area to the west of Block 14 (Area 5) where two old production wells are located.
The survey in Area 5 returned positive results over a large area and has now been followed up with drilling. The aquifer, which is hosted within the Nubian Sandstone Formation (NSF) has been intersected in 9 boreholes over an at area of +60km2 between 58m and 90m from surface. 48-hour pump test results have shown consistent aquifer yields and GCS are comfortable that the aquifer is highly likely to sustain the output required for a 3.4Mtpa process plant.