Utility Locating Process
Our Utility Locating Surveys Are Performed by Following an 8-Step Process
Our Utility Locating Surveys Are Performed by Following an 8-Step Process
- Review old as-builts and interview facilities personnel regarding whereabouts of above ground and underground utilities.
- Perform an initial on-site consultation with the client to determine the scope of work.
- Perform a visual inspection of the site, survey area, and inside all utility vaults and nearby buildings to search for visual evidence of underground utilities.
- Conduct an active mode cable and pipe locator survey by applying a radio signal to all accessible conductive wires by wrapping a transmitter clamp around them; to metallic conduits and pipes via direct connection of an alligator clamp to their metal surfaces; and snake all non-metallic pipes and conduits with a detectable duct rod.
- Conduct a passive mode cable and pipe locator survey via power, radio, and induction mode to search for inaccessible high voltage electric (HVE), telecommunication lines, and inaccessible, abandoned and unknown lines.
- Conduct a ground-penetrating radar (GPR) survey to search for inaccessible, abandoned and unknown lines.
- Designate the location and depth of underground utilities with paint and/flags, using AWPA color codes (PDF).
- Perform a final on-site consultation with the client to explain the results of the survey, including a thorough explanation of any limitations or areas of concern.