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- Provides information about the sub-surface that may be unobtainable from surface methods or sampling
- Measurements are made in situ
- Repeatable time lapse measurements to
observe changes
- Continuous data, unlike sampling
- Only means of obtaining data when there is no
information available
- Helps with the design and location of water wells
- Allows the vertical and horizontal extrapolation of data derived from boreholes
- Supplements geologists’ or drillers’ logs and
geophysical surveys
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