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Our work

From field to report

Case studies, field work and model outputs from our assignments for industry, mines and infrastructure.

Case studies

Problems we solved

Mines · Jharkhand

Tasra opencast coking coal mine: how much water, and from where?

Challenge: A 4 Mtpa opencast coking coal mine in the Jharia Coalfield, going down to 260 m beside the Damodar River, needed year-by-year seepage estimates and a dewatering plan.
What we did: Well inventory, pumping tests, ERT surveys, water quality and stable isotope analysis of 20 samples, and a calibrated five-layer MODFLOW model (RMS error below 1 m) run for each mine stage.
Result: Isotopes showed that 70–80% of sump water is groundwater from the fractured Barakar sandstone. Seepage rises from about 2,950 m³/day in year 1 to 12,300 m³/day in year 5, with a phased plan for dewatering, slope safety and monitoring.

Mines · Maharashtra

Surjagarh iron ore mine: stopping seepage before it reaches the crusher

Challenge: Persistent seepage on the northern wall of a new infrastructure terrace at Lloyds Metals' Surjagarh mine, Gadchiroli, threatened the foundations of a crushing facility.
What we did: Four 2D ERT lines across the benches, 15 VES, well inventory, recharge and runoff analysis for 37 micro-watersheds, and a conceptual groundwater model.
Result: 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.

Mines · Nigeria

Groundwater baseline for a greenfield iron ore mine

Challenge: A new iron ore mine in Nasarawa State needed a groundwater baseline before planning dewatering and community water supply.
What we did: Exploratory drilling, pumping and slug tests, infiltration tests, VES surveys, stream flow measurement and water sampling, run by our own field team.
Result: Aquifer parameters, a hydrogeological framework for mine planning, and recharge options for nearby communities.

Special studies · Uttar Pradesh

Will the aquifer sustain a new bio-energy plant?

Challenge: A compressed biogas plant at Shahjahanpur needed proof that its groundwater source would last through the life of the project.
What we did: Two field campaigns: well inventory, water level and quality surveys, step and constant-rate pumping tests, and climate change impact on recharge.
Result: A source sustainability assessment for the plant's water planning, now the template for our work at other bio-energy sites.

Infrastructure · Haryana

Buriya Nallah drainage feasibility and DPR

Challenge: Faridabad Metropolitan Development Authority needed a feasible alignment and design for the Buriya Nallah drain.
What we did: Drone photogrammetry, DGPS survey, field investigation, hydrological analysis and hydraulic design.
Result: Feasibility study and detailed project report with tender documents for FMDA.

In the field

Field work

Drilling, pumping tests, geophysics, drone surveys and water sampling, run by our own team.

Team measuring discharge with a drum during a pumping test — Pumping test · discharge measurement, Shahjahanpur, Uttar Pradesh

Truck-mounted rig drilling an exploratory well in grassland — Exploratory drilling · iron ore mining project, Nasarawa State, Nigeria

Field team recording a resistivity sounding with the instrument on the ground — Geophysical survey · VES and resistivity, Nigeria

Village children splashing in water flowing from a newly tested well at sunset — Water for the community · exploratory well under test, Nigeria

Resistivity imaging instrument, battery and cable reel set up in open scrub — ERT survey · iron ore mine, Surjagarh, Gadchiroli, Maharashtra

Excavator loading a dumper on the bench of an opencast coal mine — Mine seepage study · Tasra opencast coal mine, Dhanbad, Jharkhand

Field crew in helmets laying resistivity cable through forest — ERT crew · Tasra, Jharkhand

Cable reel and electrode line in dense undergrowth — Electrode line · Tasra, Jharkhand

Hydrogeologists recording a pumping test with a water level sounder — Aquifer test · Nigeria

Hydrogeologist measuring water level in a pumping well — Water level monitoring · Uttar Pradesh

Drone photogrammetry 3D model of a drainage channel and banks — Drone survey · 3D terrain model, Buriya Nallah, FMDA Faridabad

Survey line laid out across a field for a geophysical traverse — Electrode spread · geophysical traverse, Nigeria

Team measuring stream flow in a forest stream — Stream flow measurement · Nigeria

Engineer with a test ring during a field survey beside a drain — Field investigation · Buriya Nallah, Faridabad

Aerial view of an iron ore mine on forested hills — Hydrogeological study · Surjagarh iron ore mine, Gadchiroli

Village pond surrounded by vegetation before rejuvenation — Water-body revival · Baba Ram Singh Talab, Gurugram

Rows of brick-lined recharge shafts in a recharge trench — Managed aquifer recharge · recharge shafts under construction

From data to decision

Models that regulators can audit

Calibrated numerical models, reported the way CGWA and EAC reviewers expect: drawdown, radius of influence, water budgets and scenarios.

3D surface of a drawdown cone around pumping wells in two aquifer layers — Cone of depression around project wells, two layers, MODFLOW

Simulated groundwater head map with flow arrows inside a 5 km study area — Simulated head and flow directions, 5 km study area

Simulated head contours and flow vectors around an opencast coal mine pit — Mine seepage model: head and flow toward the pit, Tasra coal mine

3D fence diagram of four ERT sections with VES soundings and seepage zones — 3D ERT fence diagram with seepage zones, Surjagarh iron ore mine

Block diagram of subsurface layers built from resistivity and PQWT surveys — Subsurface block model from ERT and PQWT surveys, Bengaluru

Comparison of an actual borewell litholog with a log inferred from a geophysical survey — Geophysics checked against borewell lithology

Browse all 271 assignments

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