Underground Detective Blog

Field Technician

What is Ground Penetrating Radar (GPR)

Ground penetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface. This non-destructive method uses electromagnetic radiation waves and detects the reflected signals from subsurface structures. GPR is limited on depth, depending on antenna frequency Read more >

utility line markings

State One-Call vs Private Utilities Location

Private utilities location – Do I need it?

The 811 State One-Call is a call everyone needs to make before starting any excavation project! It is a free service which will cover locating all underground utilities from the street to Read more >