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Authors: Fontana, M* 
Grassa, F.* 
Cusimano, G.* 
Favara, R.* 
Hauser, S.* 
Scaletta, C.* 
Title: Geochemistry and potential use of groundwater in the Rocca Busambra Area (Sicily, Italy)
Issue Date: 2009
Series/Report no.: /57(2009)
DOI: 10.1007/s00254-008-1368-z
Keywords: Water quality
Environmental isotopes
Subject Classification03. Hydrosphere::03.01. General::03.01.01. Analytical and numerical modeling 
Abstract: In the Rocca Busambra area (mid-west Sicily, Italy), from November 1999 to July 2002, 23 water points including wells and springs were sampled and studied for their chemical and isotopic compositions. Two rain gauges were also installed at different altitudes, and rainwater was collected monthly to determine the isotopic composition. The obtained results revealed the Rocca Busambra carbonate complex as being the main recharge area on account of its high permeability value. From a chemical view point, two main groups of water can be distinguished: calcium– magnesium–bicarbonate-type and calcium–magnesium– chloride–sulphate-type waters. The first group reflects the dissolution of the carbonate rocks; the second group probably originates from circulation within flyschoid sediments. Three water wells differ from the other samples due to their relatively high Na and K content, which probably is to be referred to a marked interaction with the ‘‘Calcareniti di Corleone’’ formation, which is rich in glauconite [(K, Na)(Fe3+, Al, Mg)2(Si, Al)4O10(OH)2]. In accordance with WHO guidelines for drinking water (2004), almost all the samples collected can be considered drinkable, with the exception of four of them, whose NO3 -, F- and Na+ contents exceed the limits. On the contrary, the sampled groundwater studied is basically suitable for irrigation.
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