1D MODELLING AND INVERSION OF FREQUENCY-DOMAIN ELECTROMAGNETIC (FDEM) DATA AT A FORMER COAL TAR REFINERY

We conducted a bioriented and bimodal FDEM survey at a contaminated urban site in France. The FDEM 1D-inversion was constrained by an ERT/IP survey, boreholes and direct measurements on samples. Multivariate analysis between hydrocarbon levels and inverted data showed a global correlation affected by the groundwater and a clay layer.