A standard write-up for a locating activity typically includes several critical components: 1. Pre-Excavation Steps
: Active locating uses a transmitter to follow a specific route, while passive locating detects existing fields from live power lines. 3. Documentation and Marking locating
: 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. A standard write-up for a locating activity typically
: If EM is ineffective (e.g., for non-conductive plastic pipes), locators may use Ground Penetrating Radar (GPR) or Acoustic Locating . Documentation and Marking : This is the most common method
: Before the locator arrives, the excavator should "white line" or pre-mark the planned work area with white paint or flags. This helps locators focus on the exact site, speeding up the process.