Locating

: You must contact your local 811 center (the "call before you dig" service). In many states, locators are required to arrive on-site within 48 hours of the request. 2. The Locating Process Locators use specialized equipment to find buried lines:

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

A standard write-up for a locating activity typically includes several critical components: 1. Pre-Excavation Steps : You must contact your local 811 center

A formal locate report or write-up should document the findings with: Utility Locating- The 70% Rule for non-conductive plastic pipes)

: Active locating uses a transmitter to follow a specific route, while passive locating detects existing fields from live power lines. 3. Documentation and Marking