Safe and reliable water supplies sustain growth and development in the Southern African Development Community (SADC) region where most rural communities and many small towns and irrigation schemes depend on groundwater from wells, boreholes and springs. A range of mainly unpublished "grey data" reports, papers, manuals and maps describing hydrogeological work undertaken within countries in the SADC region during the 20th Century are available to download free of charge. These reports can inform wealth creation in the SADC region by providing valuable and much needed information on groundwater development and investigation.