TECHNOLOGIES FOR A FAST CHARACTERIZATION OF SUBSURFACE STRUCTURES AN EXAMPLE FROM THE MILANO-RHO SITE

At large scale contaminated sites the typically applied approach of conventional, drilling-based investigations is prohibitive expensive, and information will be solely available at a limited number of boreholes. Hence, it can be expected that great uncertainty exists about relevant subsurface structures, their physical and geochemical properties, and on the distribution of contaminants in the subsurface. As a progress in site characterization, geophysical methods can be combined with Direct Push technologies. Especially, the combination of Direct Push technologies with pulled geophysical arrays provides a new scientific and economic relevant extension of traditional site investigation concepts. We will present a field test demonstration, which shows a variety of methods for a rapid and effective site characterization in terms of structure, hydrogeological, and chemical parameters at a field site in Rho (Milano, Italy). The measured data of high quality and resolution will help to improve the conceptual model of the site.