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Report on the tracer tests (experimental setup, results and interpretation)
Goderniaux, Pascal; Brouyère, Serge; Gutierrez, Alexis et al.
2006
 

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FP6 Integrated Project Aquaterra (n° 505428 GOCE) co-funded by the European Commission within the Sixth Framework Programme (2002-2006) under the thematic priority: Sustainable development, global change and ecosystems


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Keywords :
Brévilles spring; tracer experiment; field experiment; groundwater pollution; FVPDM
Abstract :
[en] Tracer experiments were performed in the Brévilles test site in order to highlight vertical variations in groundwater fluxes related to vertical variations hydraulic conductivity, to estimate contaminant travel time from several locations in the catchment to the springs and to identify transport processes affecting the fate of solutes in the saturated part of the aquifer. Following a first tracer experiment with uranine and sulforhodamine G in 2003, four tracer injections were performed in November 2005 in different piezometers, using uranine, sulforhodamine B, iodide and lithium. Tracer concentrations were monitored in the injection wells and at the basin outlet (spring and gauging station). Using the FVPDM method, concentration evolutions monitored in the injection wells allowed one to estimate local Darcy fluxes. At the basin outlet, only two tracers were recovered. Analyses of breakthrough curves confirm the stratification of the aquifer with more permeable levels in the lower part. They also suggest the probable occurrence of vertical interactions within the aquifer.
Research center :
Aquapôle - ULiège
Disciplines :
Geological, petroleum & mining engineering
Earth sciences & physical geography
Author, co-author :
Goderniaux, Pascal ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Brouyère, Serge  ;  Université de Liège - ULiège > Département Argenco : Secteur GEO3 > Hydrogéologie & Géologie de l'environnement
Gutierrez, Alexis;  BRGM Orléans (France) > Service Eau
Baran, Nicole;  BRGM Orléans (France) > Service Eau
Mouvet, Christophe;  BRGM Orléans (France) > Service Eau
Language :
English
Title :
Report on the tracer tests (experimental setup, results and interpretation)
Publication date :
September 2006
Report number :
Deliverable H2.3 FP6 Integrated Project AquaTerra (n° 505428 GOCE)
Number of pages :
47
Commissioned by :
Commission européenne - Direction de la Recherche
Name of the research project :
AquaTerra - Integrated Modelling of the river-sediment-soil-groundwater system; advanced tools for the management of catchment areas and river basins in the context of global change
Funders :
DG RDT - Commission Européenne. Direction Générale de la Recherche et de l'Innovation [BE]
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since 02 December 2010

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