SA Waterbulletin September 1995

Abstract

The first aftempt at providing synoptic and visual information on South Africa's groundwater resources Prepared for the Water Research Commission by JR Vegter The set of hydrogeological maps has been produced on two AO sheets as follows: Sheet 1: Borehole prospects in colours superimposed on a background of lithostrati-graphy indicated by different hachuring and letter symbols (scale 1:2.5 million). Sheet 2 U Saturated interstices providing a A Guide on how to read and understand the qualitative indication of ground-maps is included. The Guide also gives a water storage (scale 1:4 million) short exposition of hydrogeological princi-U Depth of groundwater level (scale pies on which the maps are based and how 1:7.5 million) they were compiled. U Mean annual groundwater recharge (scale 1:7.5 million) Note: It should be emphasised that [U Groundwater component of river these maps depict groundwater condiflow (base flow) (scale 1:7.5 tions on a regional scale.

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