Application for Capacitively Coupled Resistivity Surveys in the City of Messina

The electrical surveys by means of the OhmMapper Geometrics were carried out in the urban centre of the Messina city. The obtained results show an increased level of vulnerability of sediment areas due to the reduced depth of the water table in zones close to the coastline, also according to the hydrogeological characteristics of the urban area, which is crossed by nine seasonal streams. An additional safety reducer was highlighted by the presence of large area of the city where the buildings, also strategic buildings, have foundation partially or totally immersed in ground water table or water leakage from the municipal water. The CCR measurement can therefore be a useful supplement during the delineation of groundwater protection areas in urban sites where the telluric noise and the very dry shallow layer make the more traditional galvanic method impracticable. The main advantage of CCR is a more simple experimental setup, which allow a deeper insight into underground structure and results in a more time and cost effective geoelectrical logging.