VEXRAD • Water & Groundwater
Groundwater Exploration & Water Security
Non-invasive subsurface intelligence for groundwater exploration, aquifer characterisation and better-informed borehole targeting — before committing to physical drilling.
See before you drill
Build a subsurface picture before sinking the borehole.
Water exploration questions
What do you need to know before drilling?
Where?
Which surface locations provide the strongest combined geological and geophysical case for further investigation?
How deep?
At what depth do interpreted formation changes and candidate water-bearing intervals occur?
In what geology?
Which lithological units, fractures or structural settings may control the groundwater system?
How does it vary?
Can multiple Virtual Boreholes help investigate lateral changes across a site rather than relying on a single point?
Where should we drill?
Can the available evidence help rank candidate borehole locations before committing drilling capital?
How do we validate?
Compare the pre-drill interpretation with borehole geology, water strikes, logs and hydrogeological testing.
Where ADR can contribute
From exploration to aquifer intelligence.
Groundwater exploration
Investigate depth-referenced subsurface responses and identify candidate intervals for further hydrogeological assessment.
Virtual Boreholes
Construct depth-referenced profiles from surface measurements before physical boreholes are drilled.
Aquifer characterisation
Investigate lithology, formation boundaries, interpreted saturation changes and structural controls across selected locations.
Borehole targeting
Compare candidate locations and add another evidence layer to the hydrogeological model before drilling.
Mine & infrastructure water
Investigate subsurface water-related questions around proposed workings, dewatering areas and infrastructure.
Repeat investigation
Where technically justified, revisit selected locations to test whether repeatable subsurface changes can be measured through time.
The workflow
Turn a water question into a testable prediction.
Evidence in practice
Two water examples — with different evidence status.
15 Virtual Boreholes across three profiles
The interpretation identified a common water-table pattern around ~75 m, stepping approximately 72–100 m northward, together with interpreted water-bearing and freshwater-to-partially-saturated-to-saline zonation.
Important: the interpreted groundwater targets were not independently confirmed by investigation drilling. They remain candidate evidence rather than a drill-validated groundwater discovery.
Known aquifer / fracture intervals
At Terregles, known aquifer intervals around 58–68 m and 98–110 m provided physical control for comparison with ADR responses. Reported correspondence was approximately 1–2 m around known fracture/aquifer intervals.
This type of prediction-versus-known-control comparison is the validation model VEXRAD wants to extend across future water projects.
Stronger together
ADR should sit inside the hydrogeological workflow.
Before ADR
Review maps, boreholes, hydrogeology, remote sensing, terrain, conventional geophysics and the actual water requirement.
With ADR
Add depth-referenced Virtual Boreholes at locations chosen to answer specific geological and groundwater questions.
After ADR
Rank targets, drill where justified and use the physical borehole to validate and improve the interpretation.
Evidence-led positioning
What a Virtual Borehole can — and cannot — tell you.
It can support
- Depth-referenced geological interpretation
- Formation and lithological changes
- Candidate water-bearing intervals
- Comparison between selected locations
- Borehole-target ranking
- Pre-drill geological questions
It does not guarantee
- Water yield or sustainable abstraction rate
- Permeability or connectivity
- Water quality
- A successful production borehole
- Aquifer resource volume
- A replacement for hydrogeological testing
Frequently asked questions
Groundwater exploration FAQs
Can VEXRAD find groundwater before drilling?
VEXRAD can investigate subsurface responses and identify candidate water-bearing intervals before drilling. A physical borehole and hydrogeological testing remain necessary to confirm water, yield, quality and sustainable production.
What is a groundwater Virtual Borehole?
A depth-referenced interpretation generated from surface-acquired ADR measurements, designed to investigate geological changes and candidate intervals before a physical water borehole is drilled.
Can ADR tell how much water an aquifer will produce?
Not by itself. Sustainable yield depends on permeability, connectivity, recharge and hydrogeological conditions that require physical testing.
Can ADR replace conventional hydrogeology?
No. VEXRAD positions ADR as a complementary subsurface-intelligence layer that should be interpreted alongside hydrogeology, existing geophysics, borehole information and drilling.
How should a first VEXRAD water project be designed?
Start with a clearly defined groundwater question, review existing evidence, select a small number of test locations, generate predictions before drilling or revealing control information, and then independently compare the results.
Know more before you drill
Bring us one groundwater target.
Give VEXRAD the proposed borehole area, target depth, hydrogeological context and evidence you already have. We can assess whether ADR could add useful subsurface intelligence before more drilling capital is committed.