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Pipe and Ground Penetrating Radar

Pipe penetrating radar (PPR) is the underground in-pipe application of ground penetrating radar (GPR), a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in / 450mm) non-metallic (reinforced concrete, vitrified clay, PVC, HDPE, etc.) underground pipes. PPR has the unique ability to map pipe wall thickness and deterioration including voids outside the pipe, enabling accurate predictability of needed rehabilitation or the timing of replacement. 

Ground Penetrating Radar (GPR) is a geophysical method that sends electromagnetic radar pulses into the ground to image the subsurface. GPR is typically used to detect buried utilities, potential voids and sinkholes, and bedrock and geologic hazards. When GPR encounters a buried object, a signal is returned to the receiver where signal variations are recorded.

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