- CGWA / RGI accredited
- Ex-CGWB & CGWA leadership
- RGI-certified water auditor
Ground water & CGWA NOC consultantsFormer regulators.
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CGWA NOC consultants for industry, mines and infrastructure: NOC, impact assessment and groundwater modelling, from the people who used to run CGWB and CGWA.
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New: NOC guide for industries, mines and infrastructure · Free NOC renewal reminder · CGWA updates · Got a CGWA notice? · NOC by industry · NOC गाइड हिंदी में
Trusted by industry leaders
Groundwater and surface water expertise, under one roof
CGWA NOC & Impact Assessment
NOC applications, Impact Assessment Reports with or without groundwater modelling, renewals and compliance.
MinesMining Hydrogeology
Comprehensive Hydrogeological Reports, mine seepage and dewatering estimates, EAC and CGWA support.
All sectorsGroundwater, Flood & Climate Modelling
MODFLOW, SEAWAT and transport models, HEC-RAS flood modelling and climate change impact on water availability.
FieldGeophysical Investigations
2D/3D Electrical Resistivity Tomography and VES for aquifer geometry, fractures and well siting.
FieldHydrogeological Surveys, Drilling & Aquifer Mapping
Exploratory drilling, aquifer mapping, pumping tests, water quality and resource assessment.
Corporate · ComplianceWater Audit, Neutrality & ESG
RGI-certified water audits, water neutrality and water risk assessment, and ESG reporting support.
SustainabilityRecharge & Water Security
Rainwater harvesting, managed aquifer recharge, water-body revival and water security plans.
Coastal aquifers, remediation, flood studies, GIS and more →
Accredited, certified, and run by former regulators
View our credentials (PDF) Meet the team See sample reports Book a free 15-minute call
Your NOC in three steps: file it, comply with it, avoid penalties
Industry
Documents to file, Impact Assessment Report thresholds, water audit every two years above 100 m³/day, renewal every 3 years.
Mine
Comprehensive Hydrogeological Report, use of pit water, piezometers along the lease, renewal every 2 years.
Infrastructure
NOC before work starts, Impact Assessment Report with 5 km model for dewatering, flow meter on discharge.
Penalties and EC
EC rates for industry and dewatering, deterrence factor, and fines from Rs 50,000 to Rs 10 lakh per violation.
Free NOC renewal reminder CGWA updates this month Got a CGWA notice? NOC by industry
Groundwater, explained in plain Hinglish
Start with your question
Will my NOC need a groundwater model?
It depends on how much water you draw and where. Check in seconds.
How far will my pumping affect neighbouring wells?
Radius of influence and drawdown from a calibrated model.
Can a mine pit be dewatered without drying out villages?
Seepage by pit stage, impact on wells and a mitigation plan.
Is our groundwater source secure for the next 20 years?
Source sustainability with climate change scenarios.
Where should we drill for water on hard rock?
Geophysics and drilling to put the well on the fracture.
How do we become water neutral?
Water audit, reuse and measured recharge.
From field to report
Tasra opencast coking coal mine: how much water, and from where?
Isotopes showed that 70–80% of sump water is groundwater from the fractured Barakar sandstone.
Surjagarh iron ore mine: stopping seepage before it reaches the crusher
We traced the water to a perched zone 3–7 m deep feeding NW–SE fractures, and designed a five-tier plan: surface capping to cut infiltration by 70–80%, horizontal drains and relief wells, garland drains, foundation protection and piezometer monitoring.
Groundwater baseline for a greenfield iron ore mine
Aquifer parameters, a hydrogeological framework for mine planning, and recharge options for nearby communities.
Case studies, field photos & models See what a full report contains All 271 assignments by state