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Free tool · 1 minute1-minute NOC check: which study does your project need?
Answer five questions about your project. You will see which report your NOC needs, and whether a groundwater model is required. Want the full rules, what to do after the NOC, and penalties? Read the NOC guide.
The rule behind the tool
Criteria for groundwater modelling
Para 8, amendment to the CGWA guidelines notified on 29.03.2023. Projects above these limits must submit an Impact Assessment Report and a groundwater modelling study covering a 5 km radius around the site, prepared by an accredited consultant.
| Project | Assessment unit | Area type | Withdrawal (m³/day) | Modelling |
|---|---|---|---|---|
| Industry | Over-exploited, critical, semi-critical | Hard rock / non-alluvium | >100 to 500 | Analytical (SOP Section F) |
| Alluvium | >100 to 1,000 | Analytical (SOP Section F) | ||
| Hard rock / non-alluvium | >500 | Numerical | ||
| Alluvium | >1,000 | Numerical | ||
| Safe | Hard rock / non-alluvium | >500 | Numerical | |
| Alluvium | >2,000 | Numerical | ||
| Mining | All | All | Seepage >500 | Numerical |
| Infrastructure | All | All | Any dewatering | Numerical, irrespective of quantum |