Locating -

: If EM is ineffective (e.g., for non-conductive plastic pipes), locators may use Ground Penetrating Radar (GPR) or Acoustic Locating .

In the context of construction and excavation, a is the process of identifying and marking the positions of underground utility lines—such as gas, electric, water, and telecommunications—to prevent damage during digging. locating

A formal locate report or write-up should document the findings with: Utility Locating- The 70% Rule : If EM is ineffective (e

: This is the most common method. It involves a transmitter that sends a frequency down a conductive line and a receiver that detects the signal above ground. : If EM is ineffective (e.g.