THE NATIONAL GROUNDWATER ARCHIVE (NGA)

Department of Water and Sanitation

The NGA is a web enabled database system that allows capturing, viewing, modifying and extraction of groundwater related data by registered users. Advanced search and reporting facility are also provided. Currently the main focus of NGA is on point data known as Geosites (boreholes, dug wells, seepage ponds, springs, etc). Line and polygon data will be made available in future.

National Groundwater Archive (NGA) Stored Borehole Distribution

Currently there are about 265 355 Geosites on the NGA. The map shown here has been prepared from borehole records stored in the NGA as at September 2020 totaling 254 650. The bulk of the records were obtained from State-drilled boreholes.

The map does not depict all existing boreholes nor does it reflect the groundwater potential of any area. But you can learn about it from our Harvest Potential Map. Additional information on borehole records stored in the NGA is to be seen here.

To obtain Geosite Identifiers contact the relevant Regional Office.

NGA Brochure

NGA Brochure cover - Click to view brochure

Enquiries: ngaur@dws.gov.za

For more information on water-related matters, visit the DWS website.