Ground-penetrating radar (GPR) is a geophysical method that reflects signals from subsurface structures. It works by pulsing electromagnetic energy into the subsurface of the soil, rock, concrete or another medium. The GPR then receives the electromagnetic signals reflected back into the transmitter from bouncing off the materials and services below the ground to identify their approximate location and depth

In the right conditions GPR can be used to detect non-conductive cables/pipes such as nylon gas mains, fibre optic cables, storm water lines, Underground Tanks and it is also able to detect changes in material properties, and voids.

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