A hydrogeological survey report assesses aquifers, groundwater levels and quality, sustainable yield and the impact of proposed extraction. It is required with groundwater NOC applications to the CGWA or state authority for larger extraction volumes and certain project types, and is prepared by qualified hydrogeologists after field investigations.
Contents
- Geology and aquifer mapping
- Water level and quality data
- Pumping tests and yield
- Impact on nearby users
- Recharge measures
Process
- Desk study.
- Field survey and tests.
- Analysis and report.
- Submission with NOC application.
When required
Above extraction thresholds, in stressed blocks, or for mining and infrastructure projects.
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Implement recharge and monitoring as per NOC conditions.
Frequently asked questions
Is it needed for small users?
Usually only above specified extraction volumes.
How long does it take?
A few weeks including field work.
Is a geophysical survey included?
Often, to locate aquifers.
Is it valid for renewal?
Updated data may be required at renewal.
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