Leachate Plume Investigation Using Mise-A-La-Masse Resistivity

Mise-a-la-masse resistivity is a surface resistivity method that utilizes a down-hole current<br>source in contact with a conductive body. The data obtained can be interpreted to determine the<br>long axis of the conductive body or can be modeled to help determine the direction and extent of<br>the body. Mise-a-la-masse was used to assist in the delineation of a contaminant plume emanating<br>from a landfill in Ishpeming, Michigan. The long axis and direction of migration of the<br>plume were interpreted and the data was modeled as a series of point sources and using the finite<br>element program MODFLOW. Mise-a-la-masse was also used to assist in determining the direction<br>of bedrock fracturing and groundwater flow in Rock, Michigan where petroleum contamination<br>had occurred.