Bigman Geophysical, LLC supplies specialty technology, training, calibration, and support for remote sensing, mapping, subsurface utility detection, structural and building inspection, and materials testing. We regularly collaborate with customers on the following applications: Archaeological and historical site mapping Cemetery mapping, grave verification, and unmarked burial identification Residential and commercial construction and renovations Concrete scanning for rebar, conduits, and post-tension cables Inspection of concrete for corrosion, delamination, honeycombing, and voids Thickness measurements of concrete, runways, dams and roadways Mapping utilities, drainage systems, irrigation networks, and other civil infrastructure Environmental investigations Precision Agriculture Contaminant and waste mapping Location of underground storage tanks (USTs), septic tanks, and buried drums Void and sink hole detection and characterization Estimation of depth to bedrock or water table