Relationship Between Biodegradation and Bulk Electrical Conductivity

A014 RELATIONSHIP BETWEEN BIODEGRADATION AND BULK ELECTRICAL CONDUCTIVITY Abstract Groundwater chemistry data were used to assess the relationship between high bulk conductivity zones and biodegradation of hydrocarbon. Biodegradation was verified using terminal electron acceptors (nitrate sulfate and iron) dissolved inorganic carbon (DIC) and the isotope ratio of DIC (delta 13 CDIC). The bulk conductivity was measured using in situ vertical resistivity probes. The results show that peak values in the bulk conductivity occurred in zones in the aquifer where total petroleum hydrocarbon were high and nitrate sulfate and iron reduction were occurring. Also in the zones where bulk conductivity was