engleski

Managemment of coastal karstic springs of Croatia. Example of Novljanska Žrnovnica spring

An approach for solving the problem of exploitation of freshwater in the salinity zone of coastal karst aquifers during summer dry periods is presented on the example of spring zone Novljanska Žrnovnica, situated in the northern part of Croatian Adriatic coastal region. The spring zone Novljanska Žrnovnica is situated on the seacoast, and is used for water supply (about 250 l/s) of an important tourist area of Crikvenica and Novi Vinodolski. After unsuccessful attempts of physical separation of freshwater system from the sea influence, by construction of grouting curtain, hydrogeological studies have focused on the possibility of groundwater capturing in the hinterland of discharge zone, outside of the zone of periodical salinity. The final research results with the exploitation well in the spring hinterland can serve as a model for research and exploitation of drinking water in natural conditions of unstable freshwater-saltwater interface in similar natural conditions.

Coastal karstic spring; Management; Novljanska Žrnovnica; Croatia

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