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Evaluation of the groundwater catchment potential in the vicinity of the "De Cloedt" pit at Knokke, in the eastern coastal plain of Belgium Walraevens, K.; Martens, K.; Coetsiers, M.; Van Camp, M. (2005). Evaluation of the groundwater catchment potential in the vicinity of the "De Cloedt" pit at Knokke, in the eastern coastal plain of Belgium, in: Araguás, L. et al. (Ed.) Groundwater and saline intrusion: selected papers from the 18th Salt Water Intrusion Meeting: 18 SWIM, Cartagena (Spain), 31 May to 3 June 2004. Publicaciones del Instituto Geologico y Minero de España. Hidrogeologia y Aguas Subterraneas, 15: pp. 231-241 In: Araguás, L.; Custodio, E.; Manzano, M. (Ed.) (2005). Groundwater and saline intrusion: selected papers from the 18th Salt Water Intrusion Meeting: 18 SWIM, Cartagena (Spain), 31 May to 3 June 2004. Publicaciones del Instituto Geologico y Minero de España. Hidrogeologia y Aguas Subterraneas, 15. Instituto Geologico y Minero de España: Madrid. ISBN 84-7840-588-7. 766 pp. In: Publicaciones del Instituto Geologico y Minero de España. Hidrogeologia y Aguas Subterraneas. Instituto Geologico y Minero de España: Madrid

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Beschikbaar in	Auteurs
VLIZ: Open access 247140 [ download pdf ]
Documenttype: Congresbijdrage

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Author keywords

groundwater catchment, hydrodynamic modeling, salt/fresh water distribution, geophysical characterization

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Auteurs		Top
Walraevens, K. Martens, K. Coetsiers, M. Van Camp, M.

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Abstract

The municipal public water-supply company of Knokke-Heist is producing drinking-water from the dunes aquifer. However, the available resources are limited and overexploitation of the ecologically valuable dune aquifer system should be avoided. Therefore, the company has developed a new strategy for the future. An important component of this new strategy consists in the treatment of surface water by means of reverse osmosis, and remineralisation of the produced filtrate by means of groundwater taken from a new catchment around the “De Cloedt” pit, a former sand quarry, which is now inundated and recharged by surface water. The “De Cloedt” pit is situated in the polder area, just to the south of the dune border. In the polder area, saline groundwater occurs in depth, which may limit the groundwater exploitation potential. This paper deals with the hydrogeological investigations that have been performed of the area. This includes geophysical measurements, piezometric and surface water discharge measurements, groundwater sampling and analysis and modeling.

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