On our nineteenth episode, Sean McConnel of Bigman Geophysical gives us an expert's view on GPR as a nondestructive method of subsurface investigation:

• what it can (and can't) do

• when and where it works best

• and how it can provide incredible value at very low cost by detecting utilities in the early project phases.

Sean McConnel is a Senior Project Manager at Bigman Geophysical, where he oversees geophysical projects from around the world that call for all kinds of non-destructive testing: on-site analysis and consultation, back-end data processing, equipment, training and support. Sean is a geophysical archaeologist, currently defending his PhD at the University of Wisconsin, Milwaukee. He has been deployed to  ...