BOREHOLE SIGHTING
It is basically defined as ‘’the searching of groundwater using scientific methods’’
The importance includes:
- selecting a suitable area or points with high groundwater potential
- to avoid wastage of funds (reduced chances of sinking a dry borehole)
Environmental features considered during siting are:
(i) Rock type (geology)
(ii) Geological structures e.g. Fractures
(iii) Vegetation
(iv) Geomorphology
Limitation:
It does not measure the availability of groundwater (only measures the resistivity of earth materials)