Environmental Geology

, Volume 44, Issue 8, pp 881–892 | Cite as

Comparison of aquifer vulnerability assessment techniques. Application to the Néblon river basin (Belgium)

  • Radu Constantin GoguEmail author
  • Vincent Hallet
  • Alain Dassargues
Original Article


Five different methods for assessing intrinsic aquifer vulnerability were tested in a case study and their results compared. The test area was a slightly karstified district in the Condroz region of Belgium. The basin covers about 65 km2 and the karst aquifer provides a water-supply of about 28,000 m3d-1. The methods tested were: EPIK (Doerfliger et al. 1999), DRASTIC (Aller et al. 1987), 'German method' (von Hoyer and Söfner 1998), GOD (Foster 1987) and ISIS (Civita and De Regibus 1995). The results are compared and critically examined. From the analysis, it seems that reducing the number of parameters is unsatisfactory, due to the variety of geological conditions. The various methods produce very different results at any given site. As only physically-based methods can be checked for their reliability, it is clear that future vulnerability mapping techniques must incorporate such methods.


Groundwater protection Vulnerability Aquifer GIS Belgium 



Particular thanks are given to Bob Aldwell and to Coran Kelly, Geological Survey of Ireland, for their helpful technical reviews.


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Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Radu Constantin Gogu
    • 1
    Email author
  • Vincent Hallet
    • 2
  • Alain Dassargues
    • 3
    • 4
  1. 1.ETH HoenggerbergInstitute of CartographyZurichSwitzerland
  2. 2.University of NamurNamurBelgium
  3. 3.Hydrogeology, Dpt GEOMACUniversity of LiegeLiegeBelgium
  4. 4.Instituut voor AardwetenschappenKatholieke Universiteit LeuvenBelgium

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