Application of Geophysical Methods to Delineate Contamination in Fractured Rock at the University of Connecticut Landfill, Storrs, Connecticut

摘要

An integral suite of geophysical methods was used to characterize the hydrogeology of a fractured-rock aquifer to identify contamination or pathways for contaminant migration near a former landfill at the University of Connecticut, Storrs, Connecticut. Surface-geophysical methods were used to identify the dominant direction of fracture orientation and to locate potential leachate plumes. Two shallow, electrically conductive anomalies near surface-water discharge areas north and south of the landfill were interpreted as leachate plumes. Two other sheet-like electromagnetic (EM) anomalies were identified and targeted for drilling and borehole-geophysical investigation. These methods were used to determine the location, orientation, and lateral continuity of fractures and to quantify the hydraulic properties of the transmissive fractures.