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Analysis of mountain springs discharge time series in the Tennacola stream catchment (central Apennine, Italy)

The mountain portion of the Tennacola stream basin, which is located in the north-east sector of the Sibillini Mountains (Central Apennines, Italy), has a large number of springs exploited for drinking water. The presence of lithotypes with different hydraulic conductivity allowed the formation of two main groups of springs with different discharge and regime. This paper aims to provide new insights about the groundwater circulation of carbonate and karst complexes supplying small mountain springs. In detail a study based on spring hydrograph analysis using the MRC method and on the main statistical parameters has been carried out, in order to evaluate the main features related to the flow paths and the main hydrogeological properties of the aquifers studied. The results allowed to characterize the main hydrogeological features of the aquifer and to evaluate the dimension of the recharge area.

Spring hydrograph analysis ; Master Recession Curve ; Carbonate aquifers ; Central Apennine ; Italy

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