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Subsurface Utility Locating

Precision and Accuracy in Every Project

Subsurface Utility Locating

The Zachman Group offers subsurface utility locating services utilizing Ground Penetrating Radar (GPR) and Electromagnetic Detection (EM). Subsurface utility locating is highly important for soil boring, excavation, directional boring, day-lighting, As-Built confirmation, and retrofit design.

Subsurface Utilities To Consider Prior To The Start of Your Project: Electrical, Gas, Communications, Sanitary Sewer, Storm Drains, Steam, Potable Water, Fire Services, and Irrigation.

FAQ

Frequently Asked Questions

Ground Penetrating Radar (GPR) often referred to as Concrete Scanning or Concrete X-ray, works by sending a pulse of energy into concrete and measuring the strength and time of the returning signal. The equipment will repeat this action multiple times as the unit is maneuvered across a surface and process the returning data points. This processed data will then appear on the operating system's monitor and is interpreted by the GPR Operator.

Findings are collected in real time. This means there is no post job processing that needs to be completed. A GPR Operator can mark out findings as they go along, allowing for timely decisions.

Once an area is scanned the findings will be marked directly on the surface. This can be done with spray paint, or lumber crayon. If items can be categorized they will be color coded and labeled. Reports of findings can also be created.

Yes, GPR is completely safe to operate around people. The frequency emissions are less than that of a smart phone.

The equipment is very compact and mobile. Most surfaces can be scanned as long as the area is relatively smooth and dry.

No, GPR is very quiet to operate.

Electromagnetic Detection (EM) works by detecting a magnetic field created by an alternating current on an item. Such as an AC electrical line.

Yes, EM is able to detect other utilities so long as they contain conductive material or have tracer wires.

The equipment can detect items up to approximately nine feet deep.

Yes, EM equipment is completely safe to operate around people.

No, the equipment can be set to silent if requested.