EGU2020-21532, updated on 12 Jun 2020
https://doi.org/10.5194/egusphere-egu2020-21532
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Presentation and methodology of TRANSKARST project

Arthur Boudon1, Hélène Celle-Jeanton1, Xavier Bertrand1, Julie Albaric1, Philippe Amiotte-Suchet2, Flavien Choulet1, Nadia Crini1, Didier Hocquet1, Frédéric Huneau3, Philippe Le Coustumer4, Christophe Loup1, Olivier Mathieu2, Cécile Miege5, Vanessa Stefani1, Marc Steinmann1, Christian Sue1, Mathieu Thevenot2, and Pierre Trap1
Arthur Boudon et al.
  • 1Université de Bourgogne-Franche-Comté, UMR 6249 Chrono-environnement, Besançon, France
  • 2Université de Bourgogne-Franche-Comté, UMR 6282 BIOGEOSCIENCES, Dijon, France
  • 3Université de Corse Pascal Paoli, UMR 6134 SPE, Corte, France
  • 4Université de Bordeaux, EA 4592 Géoressources et environnement, Bordeaux, France
  • 5IRSTEA, Lyon, France

TRANSKARST is an interdisciplinary research project with scientists and regional water resource administrators. This 3 years project (2019-2022) is set up on Arcier's karstic watershed used for the drinking water supply of 60 000 inhabitants of Besançon, France. Using this instrumental basin, as a part of Jurassic Karst French observation system, the project aims at defining pathways of mineral, organic and microbiological contamination in karstic system.

The methodology used in the project, combines field expertise with the implementation of analytical tools related to conventional - dissolved phase chemistry (major ions, miners, traces, organic carbon), isotopes (oxygen-18, deuterium, carbon-13) – and prospective analysis - emerging pollutants such as pharmaceuticals and ETM, dissolved organic matter, suspended matter and microbiology (bacteria, fungal species) with a special focus on antibiotic resistance. The TRANSKARST project thus brings together a consortium of researchers from various disciplines: hydrogeology, chemistry, sedimentology, microbiology, geology and geophysic. The project is also highly associated to water managers as Arcier’s spring is used for drinking water supply.

The three main under-objectives following by TRANSKARST could be summarized as follows. First, through geological and geophysical investigation, a conceptual and numerical geological model will be established under geomodeler and will be further used to constrain the pathways of karstic groundwater. The second point focus on the evaluation of karst media contamination: chemical (including emerging molecules) and microbiological. Then we expect to discriminate, by the use of ETM, dissolved, colloidal and particulate pathways of contamination. All the observations will be linked together to identify actions and feedback of different parameters and contaminants within karst hydrosystems.

How to cite: Boudon, A., Celle-Jeanton, H., Bertrand, X., Albaric, J., Amiotte-Suchet, P., Choulet, F., Crini, N., Hocquet, D., Huneau, F., Le Coustumer, P., Loup, C., Mathieu, O., Miege, C., Stefani, V., Steinmann, M., Sue, C., Thevenot, M., and Trap, P.: Presentation and methodology of TRANSKARST project, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-21532, https://doi.org/10.5194/egusphere-egu2020-21532, 2020

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