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Mundell mapped out subfloor utilities and clear over forty (40) proposed soil boring locations at an active automotive production plant in Indianapolis, Indiana, as part of an ongoing environmental sampling program. Mundell selected ground penetrating radar (GPR) mapping to locate utilities across the site. This technique allowed for worry-free drilling, and also increased production, as many boring were moved to areas not containing reinforced concrete. …..Read More »
Geophysics Portfolio
Subsidence Study Using Geophysics
Mundell was contracted to examine an area experiencing subsidence in the backyard of a local residence, which was located near a quarry. The results of the ground-penetrating radar (GPR) survey and 2D resistivity profiles suggested that the subsidence was most likely caused by deep, vertical soil movement which may have been the result of settlement of the unconsolidated soils or soil loss into the underlying bedrock due to quarry activities. …..Read More »
Pipeline Subsidence Study Using Geophysics
Mundell was contracted to examine an area experiencing subsidence along a section of pipeline crossing a former coal mining portion of central Indiana. To image the underlying soil and bedrock strata beneath the area of subsidence, Mundell collected, several two-dimensional resistivity imaging (2D ERI) profiles. The geophysical data showed that the shallow subsidence along the pipeline was caused by deep, vertical bedrock movement, which was likely the result of a mine collapse. …..Read More »
Geophysical Survey Locates Voids Beneath Concrete Floor
A local construction company discovered voids beneath a concrete building floor after the floor collapsed in several locations. To determine the extent of void development beneath the concrete floor, Mundell personnel completed a geophysical survey using a ground penetrating radar system (GPR), with a 1000-megahertz antenna .The results of the GPR survey indicated several void areas between the bottom of the concrete floor and the underlying fill materials on the order of 0.1 and 0.4 feet in thickness, were linked to leaking sewer pipes nearby……Read More »
Geophysical Survey Locates Buried Conductive Objects at Industrial Landfill Site
A records search and personal interviews at an aluminum industrial facility had reportedly indicated that landfill materials (in particular, carbon cathodes) had been buried in an approximately 53-acre area behind the facility. Mundell personnel completed a GPS controlled EM conductivity survey of the site, and the results indicated several large areas of highly conductive materials, which when excavated, revealed significant accumulations of spent buried carbon material, including several virgin carbon cathodes and anodes, metallic objects, and general construction debris……Read More »
