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GPRS Locates Grounding and Conduits at a Substation

Ground Penetrating Radar Systems was recently called out to a project by a general contractor to locate grounding and conduits in a substation facility. The scope of work was to locate any grounding or conduits within a 400’ path that needs to be trenched for the installation of new conduits. By using GPR and Radio Detection GPRS successfully located and marked with paint all grounding and conduits within or crossing the trench path. GPR and Radio Detection is an accurate and effective way of locating underground utilities, vaults, tunnels, and other obstructions prior to excavation. Why dig not knowing where any utilities are when GPRS can locate and mark all utilities with depth indications for your safety!

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For more information on how Ground Penetrating Radar Systems, LLC. can help you on your next project, please contact Brian Allison at (412) 292-3266 or by email at brian.allison@gprsinc.com. We also have the capabilities of locating conduits, rebar, and post tension cables in a concrete slab. Public and private utility locating is an additional service we also provide.

Equipment Used:



GSSI SIR – 3000

    • GPRS uses a Geophysical Survey Systems Inc. (GSSI) SIR-3000 Radar unit. This is the most advanced GPR available. It allows for onsite interpretation, as well as stores data for later processing. This equipment is self-calibrating, allowing more precise depth and location measurements.

400 MHz Antenna

    • This antenna typically allows data collection to a depth of approximately 3’- 6’, with a maximum capability up to 12’ depending on soil conditions. This specific antenna was created and calibrated specifically for locating underground utilities, UST’s, and other underground anomalies.



RD 7000+

    • This is an electro-magnetic tone locating device manufactured by Radio Detection. This specific model detects live power and RF signals underground, allowing us to locate electrical or telephone lines even if they are below the minimum size requirements to be detected by GPR. It also allows us to detect utilities via induction or conduction with an exposed or known surface of the utility.