Some methodological modifications are suggested to improve a DRASTIC-based method as a reliable predictor of microbial contamination in extensively fractured and subordinately karstified carbonate aquifers. These modifications will allow a better assessment of vulnerability induced by the concentrated infiltration of surface runoff in two different scenarios: (a) when the karst system is entirely located within an unsaturated aquifer and (b) when the karst system is partially located within a saturated medium. The effectiveness of the updated method has been experimentally verified by comparing the vulnerability values with the results of a hydrogeological and microbiological study at a test site.
Updating of a DRASTIC-based Method for Specific Vulnerability Assessment in Carbonate Aquifers / Celico, Fulvio; Petrella, Emma; Gino, Naclerio. - In: WATER INTERNATIONAL. - ISSN 0250-8060. - 32(2007), pp. 475-482. [10.1080/02508060708692225]
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