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Authors: Polemio, M.* 
Limoni, P.P.* 
Mitolo, D.* 
Santaloia, F.* 
Title: Characterisation of Ionian-Lucanian coastal aquifer and seawater intrusion hazard
Issue Date: 6-May-2002
Publisher: Delft University of Technology
Keywords: seawater intrusion
groundwater quality
degradation hazard
Metaponto plain
Subject Classification05. General::05.08. Risk::05.08.02. Hydrogeological risk 
Abstract: e paper deals with the seawater intrusion hazard along the Ionian coastal plain (Southern Italy), between the mouths of Sinni and Bradano Rivers. Subjected to intense agricultural activities, the good-quality of the tapped groundwater is seriously important for the economic growth of this coastal area. The stratigraphical and hydrogeological set-up of the area as the geochemical features of the groundwater arise from the data analysis of 1130 boreholes, widespread over the whole area and from 1.3 up to 423 meters deep. The contribution of seawater intrusion to salinization processes of the studied groundwater system is characterised. As pointed out by chemical-physical data, this phenomenon involves the studied coastal plain for a width of 1-1.5 km on average and it is less evident moving inwards where the altitude of the clayey bottom of the aquifer becomes progressively higher than the sea level. A preliminary seawater hazard map has been carried out through piezometric and aquifer geometrical data.
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