Reply To: Sitework Surveying Home › Forums › Resident Engineer’s Toolbox › Sitework Surveying › Reply To: Sitework Surveying 08/09/2020 at 10:15 AM #9504 BobKeymaster Ground Penetrating Radar Basics – Here are a couple of article links: What to Know About Ground Penetrating Radar (GPR) Screening Eagle Technologies This reply was modified 3 years, 3 months ago by Bob. This reply was modified 2 years, 1 month ago by Bob.