Brownfield Site Investigation Using Geophysics: A Case History from East Chicago

Geophysical characterization of contaminated urban fills

“…Holt et al, 1998;Mundell and Byer, 2004). However, similar media have been characterized using geophysics, namely old/abandoned landfills or heterogeneous alluvial and fluvioglacial deposits, and it is worthwhile to learn from these experiences and try to transpose the most appropriate methods to the problem of characterizing urban fills.…”

Mapping of contaminant plumes with geoelectrical methods. A case study in urban context

“…Boudreault et al, 2010;Holt et al, 1998;Mundell and Byer, 2004), so the novelty of this paper is based on the fact that (i) the crossvalidation of EM induction, electrical resistivity, temporal induced polarization and spectral induced polarization may differentiate 3 kinds of contaminants (one organic phase, and 2 different mineralized pollutions) with the suited methodology, and (ii) only spectral induced polarization soundings (located on resistivity and chargeability anomalies) may differentiate contaminants that have the same electrical resistivity and chargeability.…”

Hydrogeological Implication of Electrical Resistivity Sounding in Ita-Eku, Ado Ekiti, Nigeria

“…Electrical resistivity measurements in geophysical survey using the vertical electrical sounding (VES) technique is a well-established approach for solving a variety of geotechnical, geological, hydrological and environmental problems [2]. In recent years, there has been an increased awareness that subsurface characterization using standard drilling methods which offers a point measurement does not provide sufficient information to accurately evaluate the true distribution of geologic parameters beneath ground surface at many sites [3]. Hence as complement to drill-hole, geophysical technique can provide broad composite images of the subsurface over large areas at relatively lower cost and higher speed.…”