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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)