Geophysical measurements are a vital part of environmental characterization and provide much higher spatial-sampling than wells and borings alone. Applications include:
Locating man-made subsurface structures such as underground storage tanks (USTs), septic tanks, and debris.
Mapping inorganic contaminant plumes.
Mapping geologic features that control contaminant migration.
Assessing the lateral and vertical extents of landfills and buried debris.