The entire process of employing a surface geophysical strategy or strategies to interpret the presence of a subsurface utility and also to mark its approximate horizontal posture (its designation) on the ground floor. Anyone could provide a grievance to the safety committee concerning an alleged violation. To file a complaint: https://digitalasset.sfo2.digitaloceanspaces.com/Bess-Utility-Solutions-Hayward/Underground-Utility-Locating-Services-Near-Me.html