About GDM
An environmental specialist consultancy for the UAE
Environmental specialists for the UAE. We assess soil and groundwater, and explain how water and contaminants move between them.
Software scales specialist expertise. It does not replace it. Consultancy first.
Who we are
Specialists first, with software that applies their standard consistently
GDM Environmental Consultants & Studies Co. L.L.C is a Dubai-based environmental specialist consultancy. We assess soil and groundwater, and we read how water and contaminants move between them. Our work is a traceable evidence store and a deterministic rule set: every statement in an assessment traces to a laboratory result or a cited standard, and every threshold comparison is made by a versioned rule rather than by judgement in the moment.
The software exists to scale the specialist, not to stand in for one. It applies a specialist's own standard uniformly, the same rule in the executive summary as in the limitations section, on every parameter, every sample, every time. A certified assessment is then reviewed claim by claim and signed by the named specialist responsible. Certification is a human act, performed by a named person.
Soil expert
John Rasic, Soil expert
John Rasic leads GDM's soil practice and reviews Soil Intelligence assessments.
John has spent more than forty-five years asking one commercially blunt question on behalf of farmers, landowners and investors: can this soil actually do the job? By his own account that work spans three million hectares across fifty-five countries, much of it on international mega-irrigation schemes, and he founded John Rasic Consulting in Dubai to do it.
His argument for doing the work at all is a commercial one, not a technical one. A proper soil survey costs on the order of one per cent of what it takes to establish a project, and that one per cent is what protects the other ninety-nine. The survey is not there to describe the ground. It is there to say where land is worth investing in, what the soil can realistically support, what hidden problems become expensive later, what can be corrected and at what cost, and when the smartest commercial decision is simply to walk away. He has said that last answer sometimes saves more money than anything else he does.
The method underneath is unglamorous and deliberately so: dig, examine, measure, follow the evidence. He works to a standards stack cited per parameter rather than in general, BS 1377 and ASTM D2487 for classification, APHA and USEPA methodologies for chemical analysis, Dubai Municipality technical guidance for sampling design, and staged investigation that puts visual reconnaissance before anything intrusive. Every property gets attributed to a process: a pH is not a number sitting between two other numbers, it is that value because of the material it formed in and the climate acting on it.
What is rarer is the next step. Where a laboratory result cannot be supported by the physical understanding of the material, he questions the result rather than reporting it and moving on. A sand with almost no exchange sites cannot have a high true exchange capacity, whatever the certificate says. That instinct is now written into this platform as a deterministic rule, and it is the basis of its strongest defensibility claim.
He also takes on technical accountability reviews where serious losses have followed questionable soil advice, examining whether the facts support the claims and the work performed. He is careful about the limit of that: courts decide negligence, not consultants. If the work was sound the evidence will defend it, and if it was not, the evidence may expose it. That is the same discipline this platform is built on, which is why the integrated service exists at all, and why he treats soil as the link between the surface and the subsurface rather than a box to be cleared.
Soil holds the answers. We dig for them because soil does not lie. People do.
His qualifications are a Degree of Agricultural Engineering, Land amelioration, from the University of Novi Sad, and a Master of Engineering, Land degradation rehabilitation amelioration, from the University of Southern Queensland. The training and the practice are the same subject: not describing damaged ground, but repairing it.
Career detail and qualifications above are as stated on his own published professional profiles.
Groundwater specialist
Gary Morgan, Principal Hydrologist and Director
Gary Duwayne Morgan leads GDM's groundwater practice, with approximately 20 years of international consulting experience across 17 countries. He is Principal Hydrologist and Director for Water Resources & Environmental at GDM, and the certifying specialist for Groundwater Intelligence assessments.
Gary has spent roughly twenty years working out where water in the ground came from, and what it will do next, across seventeen countries from the Gulf to southern and west Africa. He founded GDM to bring that work to the UAE.
He describes the role he has grown into as a frontier consultant: someone who can identify a problem, design and build the intelligence workflow needed to investigate it, integrate data, models, knowledge and AI, challenge the resulting interpretation, validate it against independent evidence, and turn the validated capability into a repeatable professional method. Someone who can cross the boundaries between science, data, models, software and AI while retaining scientific judgement and accountability.
His discipline is physics before chemistry. A groundwater result is a number until a mechanism explains how the water got there, so the stratigraphy and the heads come first and the chemistry is then asked to confirm or break the mechanism already proposed. An exceedance table is a finding, not an assessment.
It follows that chemistry is read as a tracer set rather than a compliance checklist. The useful question is never whether a parameter exceeds a limit, but what its presence says about where the water came from, and a parameter with no threshold at all is often the most diagnostic one in the dataset. An attribution that has not named the competing source and given a physical reason to discount it is not an attribution.
He grades uncertainty in the language itself, so that what is strongly confirmed, what has the potential to occur and what remains preliminary are never blurred into one confident register. And he states the measurement that would falsify him, because a hypothesis with no specified test is an assertion. That practice is the reason this platform enforces a claim ladder in code.
He holds an MSc in Hydrology from the University of KwaZulu-Natal, taken by research on the vadose zone, with a BSc Honours in Hydrology and a BSc in Chemical Technology from the University of Natal. The vadose zone is the unsaturated ground between the soil investigated at the surface and the water table below it. It is routinely characterised by neither the soil study nor the groundwater study, and closing it is what the integrated service exists to do.
He is a registered Professional Natural Scientist with the South African Council for Natural Scientific Professions, and it is that registration which allows a GDM groundwater assessment to be certified rather than merely issued. Certification is a human act performed by a named person, and this platform is built so that a machine can never perform it.
Alongside the consultancy he is building GeoDataMind, an emerging AI ecosystem for geoscientists. Not a single application but a way of connecting three things so they reason together instead of sitting in separate tools: data from monitoring and field records, models that simulate the physics and chemistry, and the domain knowledge that decides which answer is credible. It comes out of forensic hydrogeology practice in the Gulf rather than out of a laboratory, and the answer it is after usually already exists. It is just scattered.
One question in. The whole spectrum out.
The practice
Where we work
We work with clients across Dubai · Abu Dhabi · GCC. Reach us at gary@gdm-enviro.com.
Work with us
Start with the evidence you already hold
Tell us about your site and the decision it needs to support, and a GDM specialist will take it from there.