03/06/2015
GROUND WATER EXPLORATION INFORMATION
Geophysical survey such as electrical resistivity sounding
is the best approach. Surveyor sends electrical current into
the ground and measures the resistance at various depth.
From this measures of resistance or computed bulk resistivity,
geophysicist can find out exactly what is below in the subsurface.
Without geophysical survey, putting tube wells here and there
will not yield groundwater in problematic area.
Drilling of a borewell with mear perception is not always giving water.
Selection of deep bore well sites must be based on some
scientific data by conducting proper examinations.
Even some time these data will not give good result.
Because the groundwater movement and potential
is based on so many parameters. Some times all
parameters can't be or are not in a situation to be studied.
So it cause 5-10 % failure, but proper examination
in borewell site selection will give 90-95% success.
