Webinar | Your contamination data has more to say than a map

🞉 Date & format

Tuesday, June 30, 2026, 11:00 am (Paris CET)
Duration: ~45 minutes + live Q&A
Live online session. All registrants receive the webinar video for replay.

Ce webinaire est également réalisé en français ce même jour à 14h00. Cliquez ici pour vous y inscrire.

🞉 Why attend

The question your client will ask, do you have an answer?

You have published a map, estimated a volume, proposed a remediation plan. And then your client or the regulatory authority asks a simple question: how do you know? On what basis do you say this volume is correct? That you sampled in the right places? That your map is reliable where you have no measurements?

Classical methods – IDW, deterministic interpolation, layer-by-layer volume calculation – produce results. But they do not answer these questions. Geostatistics does. This webinar shows you exactly how, through practical examples and real-world figures.

🞉 What you’ll learn

In this webinar, you will gain practical insight into:

• How the variogram captures the spatial behavior of a pollutant, beyond classical interpolation.
• Why database quality is not just good practice, but a professional protection, and how geostatistics enforces it.
• How the kriging variance map tells you where your contamination map is reliable and where it is not.
• How sampling optimization lets you justify every borehole location with quantified uncertainty reduction.
• Why a layer-by-layer volume calculation can diverge significantly from a coherent 3D geostatistical model.
• How 3D visualization makes contamination models accessible to non-technical stakeholders.
• Why presenting a P10/P50/P90 volume distribution is more credible, not less, than a single figure

🞉 Who should attend

Designed for contaminated site professionals

This webinar is designed for contaminated site engineers, environmental project managers, and site investigation consultants who already use classical interpolation methods and want to understand what geostatistics adds in terms of defensibility, uncertainty communication, and regulatory credibility.

No prior knowledge of geostatistics is required. The webinar is built around the practical questions you already face; the methods serve those questions, not the other way around.

Don’t miss this opportunity to learn how geostatistics can build confidence in contaminated site decisions!

🞉 Speaker

Meryem Meziane is an Engineer Consultant at Geovariances, specializing in applying geostatistics to contaminated site characterization and nuclear decommissioning projects. Through her work with Kartotrak, she helps clients transform sampling data into reliable 3D contamination models, defensible volume estimates, and smarter remediation decisions. She is also soon to defend a PhD on geostatistics applied to nuclear safety at ASNR, the French Authority for Nuclear Safety and Radiation Protection, and has teaching experience at Mines Paris–PSL and Université Paris Cité.