Hydrogeology

This course introduces groundwater in the hydrological cycle and then discusses the properties of the water/rock complex: porosity and permeability. It provides students with a basic understanding of underground hydrodynamics in natural and artificial flow and elementary hydrochemistry of groundwater.

Knowledge acquisition is facilitated by practical application during laboratory sessions on columns (porosity and permeability measurements, establishment of Darcy's law, salt tracing) and classroom tutorials (resolution of common hydrogeological problems based on the reading of piezometric and hydrogeological maps - Construction and interpretation of piezometric maps - Interpretation of well and groundwater tests - Significance of physical and chemical water analyses).

A field day provides an opportunity to illustrate the relationship between geological structure and hydrodynamic functioning and to introduce drilling measurement techniques.

Hourly volumes:

• CM: 1:00 p.m.
• TD: 2:00 p.m.
• Practical work: 12 hours
• Field: 6 hours

The objective of this course is to acquire both theoretical and practical skills in hydrogeology in order to pursue a master's degree and also to be immediately operational in the professional environment.

Students are required to understand the relationship between geological structure and hydrodynamic functioning of aquifers in order to understand and interpret fundamental hydrogeological processes and to be able to assess their impact on groundwater management and protection.

Geological mapping

100% Continuous assessment:

• 4 grades - 50% (Practical work + Fieldwork + CC1)
• +50% CC2

Know how to solve common hydrogeological problems based on reading piezometric and hydrogeological maps and using data. In this context, students must know how to:

• Identify aquifers from a drilling log or geological section
• Mastering the techniques for reading and analyzing a hydrogeological map in order to deduce how an aquifer works
• Mastering the techniques of constructing and interpreting piezometric maps (theory and practice)
• Calculate a gradient and flow rate from data or piezometric curves
• Interpreting a well and aquifer test
• Linking physical and chemical water analyses to a type of rock