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| Hydrogeological
Surveys |
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Systematic
Hydrogeological Surveys |
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Reappraisal
Ground Water Surveys |
| Reappraisal
Ground Water Surveys |
| OBJECTIVES
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Update baseline information |
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Study changes in utilisation pattern |
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Estimate Ground Water quality changes |
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Study changes in the
input and output from the system since
last surveys |
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Save the system from over strain |
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Forecast quality concerns |
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| ACTIVITIES
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Repeat surveys every
3-5 years |
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Re-inventory |
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Evaluation of existing scenario with
a reference to particular datum line
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Re-orient development strategies
in the context of changed scenario |
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Area identification for resource
augmentation/protection/conservation |
| ACHIEVEMENTS
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| Entire area of West Bengal, Sikkim
& Andaman & Nicobar islands
has been covered. |
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