Geostatistics applied to site characterization and remediation

The global economy and success of contaminated site characterization and remediation projects and the environmental exposure are strongly impacted by the quantity of material to be excavated, treated, then re-used or eliminated. Appropriate data acquisition, reliable mapping, precise waste categorization, and uncertainty assessment are key issues for achieving successful projects.

Whatever the contamination type (chemical or radiological) you are facing and the impacted medium (soil, concrete, sediments or groundwater), geostatistics provides you with the most efficient framework to meet these goals and improve your decision-making process.

Hear from our customers

"In the final dismantling stage of ​Zorita nuclear plant, Geostatistics and Kartotrak take an important relevance in the project inside the Site Release process."

Jose Luis Leganés Nieto, R&D, L&ILW Engineering Department - Enresa
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DMR A/S (Danish Environmental Consulting) states that Kartotrak has unique qualities when it comes to ease of use, geostatistical power and visualization capabilities in both 2D and 3D

Per Loll, R&D Manager - DMR, Denmark
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Dans le cadre de ses formations, l’INSTN fait appel à des experts reconnus. Yvon Desnoyers, consultant à Geovariances, est de ceux-là. Ses interventions permettent de délivrer une formation de qualité en combinant une approche théorique et des exemples d’applications...

Guy Granier, Responsable pédagogique - Institut National des Sciences et Techniques Nucléaires (INSTN)
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Kartotrak permet de réaliser rapidement l’analyse des données de pollution et de générer des visualisations graphiques et rendus professionnels. Le logiciel améliore la compréhension du fonctionnement d’un site pollué et nous aide à dimensionner des solutions de gestion.

Sébastien Kaskassian, Chef de projet et Responsable Innovation - Tauw France
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When using a "sniffing truck" with MIP probes to search for pollutions by volatile organic pollutants, thousands of data are collected. With Kartotrak, the management of all these data becomes a childlike simplicity and the graphical representations of results more relevant.

Jean-Louis Sevèque, Expert in Environment - AquaTerraSana
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March 13, 2018

With Kartotrak displaying borehole logs, you immediately identify the main levels of the site impacted by pollution.

February 19, 2018

Two papers of interest are to be presented dealing with (1) geostatistical mapping of health risks (eOde) and (2) the use of EQuIS and Kar...

January 30, 2018

De nombreux guides méthodologiques reconnaissent l'intérêt et la valeur ajoutée des méthodes géostatistiques pour la caractérisatio...

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September 17-20, 2018

Attend Geovariances' paper presentation about the use of geostatistics to characterize the carbon content in reactor vessel hemispherical ...

October 22-24, 2018

Find out more about Kartotrak, the integrated software solution for contaminated site and soil characterization. Ask for your demo while a...

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Data Quality Control

Before starting an evaluation of the contamination leading to decision-making tools for site clean-up, it is essential to ensure data quality. Thus, based on solid and reliable foundations, uncertainties occurring during the different steps of the decision process will be better controlled and the final quality of the project improved.

The objective of this white paper is to assess at best the validity of the data through visual, statistical and geostatistical basic tools before going further into their analysis.

Dose Rate Mapping

The objective of any serious mapping is to obtain a realistic and reliable image of the studied phenomenon. Concerning dose rate, maps are often derived from punctual measurements interpolated using deterministic methods. Sometimes, the choice of the inverse distance squared weighted interpolation is wrongly justified by the fact that the dose rate issued from a punctual source is theoretically inversely proportional to the squared distance between the source and the measurement point.

Through this white paper, find out why this inverse distance squared weighted interpolation is not the appropriate method for dose rate mapping and why the geostatistical approach by kriging is the solution for a quality and reliable mapping.

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