Ground Penetrating Radar Services

Preserving History with GPR

Cemeteries are a vital part of our cultural heritage, and proper cemetery management ensures they are preserved for future generations. Unfortunately, many cemeteries—especially rural sites—lack formal survey plans, accurate burial records, and proper grave markers. Over time, wooden crosses rot, grave markers are moved, and unmarked graves become common.

Identifying Unmarked Graves

We use Ground Penetrating Radar (GPR) to locate unmarked graves in cemeteries across Saskatchewan. Based on over 25 cemetery projects, we have found that all rural cemeteries contain unmarked graves, often making up to 15% of total graves.

Our GPR cemetery surveys help communities, rural municipalities, and church groups:

• Preserve historical burial sites

• Plan future interments

• Ensure proper cemetery management and record-keeping

By combining advanced GPR technology with expert analysis, we provide reliable solutions to locate unmarked graves without disturbing existing sites.

Our Ground Penetrating Radar (GPR) concrete scanning services uses high-accuracy 1000 MHz antenna sensors and advanced imaging software to deliver precise, reliable subsurface detection.

GPR scanning is used to accurately determine the depth and location of embedded objects and utilities within concrete, helping prevent costly damage and safety hazards before coring, cutting, or drilling.

What We Can Detect

• Rebar and post-tension cables

• Grade beams

• In-floor electrical conduit

• In-floor heating lines

• Slab thickness and depth of concrete

• Sub-slab utilities

• Potential voids beneath concrete

This non-destructive testing method ensures safe and efficient project planning for commercial, industrial, and residential construction projects.

GPR is highly effective on most concrete surfaces and under ideal conditions can penetrate from 1 inch up to approximately 36 inches deep. However, depth penetration and signal clarity can vary depending on:

• Concrete composition

• Moisture content

• Density

• Presence of certain materials such as metal or clay, which may limit signal penetration.

Our experienced technicians interpret scan data carefully to ensure maximum accuracy and reliability.

On-Site Marking & Reporting

All GPR scans include on-site color-coded surface markings , clearly identifying detected utilities and structures unless post-processing documentation is specifically requested.

Our GPR void detection services identify hidden air gaps, washouts, and subsurface erosion beneath concrete slabs and structural elements. Using high-frequency Ground Penetrating Radar (GPR) technology, we locate voids before they lead to cracking, settlement, or structural failure.

Void detection is critical for maintaining the safety and integrity of commercial, industrial, and municipal concrete structures.

What Is a Concrete Void? A void is an empty space beneath a concrete slab caused by:

• Soil erosion or washout

• Poor compaction during construction

• Water intrusion

• Freeze-thaw cycles

• Plumbing leaks beneath the slab

If left undetected, voids can lead to slab settlement, cracking, trip hazards, and structural instability.

Ground Penetrating Radar works by sending high-frequency signals into the concrete and subgrade. When the signal encounters a gap or density change beneath the slab, it reflects back to the system, allowing our technicians to identify:

• Air-filled voids

• Water-filled voids

• Soil separation beneath slabs

• Sub-slab erosion

Under ideal conditions, GPR can detect voids from just below the slab surface to depths of approximately 36 inches, depending on soil composition and moisture levels.

Void scanning is commonly used for:

• Warehouse and industrial floors

• Driveways and parking structures

• Sidewalks and walkways

• Bridge decks

• Loading docks

• Concrete pads and foundations

Before performing core drilling, slab stabilization, mudjacking, or polyurethane injection, void detection ensures accurate repair targeting and prevents unnecessary damage.

All detected voids are clearly marked on-site with color-coded layout markings unless detailed digital reporting or post-processing documentation is requested.

In complex environments where standard locating methods may struggle, our technology can assist with locating larger or difficult-to-trace utilities.

We can help by:

• Identifying large non-conductive utilities

• Locating utilities without tracer wires

• Detecting soil disturbances from previous installations

• Supporting congested underground infrastructure mapping

This layered approach improves accuracy in challenging locating scenarios.

We provide Underground Storage Tank (UST) locating services for commercial, industrial, and environmental projects.

Our scanning can help:

• Locate buried steel or fiberglass tanks

• Estimate tank dimensions

• Identify associated piping

• Detect ground disturbances indicating prior tank removal

Even if a tank has been removed, subsurface soil anomalies often remain detectable, helping confirm historical site use and supporting environmental due diligence investigations.

We provide grade beam locating and depth verification within slabs and below-grade structures.

Our scanning services identify:

• Beam locations

• Beam width and orientation

• Depth below surface

• Reinforcement within grade beams

This is essential before trenching, cutting, or structural modifications to prevent accidental damage to load-bearing elements.

Our post-tension (PT) cable scanning services identify the exact depth and location of tensioned cables within concrete slabs.

Before coring, cutting, or anchoring into a PT slab, accurate scanning is critical to prevent:

• Structural damage

• Costly repairs

• Safety hazards

• Project delays

We clearly mark cable paths and depths on-site to ensure safe drilling and modification of post-tensioned concrete structures.

We provide precise concrete and asphalt thickness scanning using non-destructive Ground Penetrating Radar.

Our scanning can determine:

• Total slab thickness

• Asphalt depth over base

• Concrete cover depth

• Rebar spacing and depth

• Reinforcement layout

This service is ideal for roadwork, structural evaluations, coring preparation, and quality control inspections. Knowing exact slab thickness prevents overcutting and ensures compliance with engineering specifications.

Our scanning services can locate buried or abandoned foundations that have been covered by soil, asphalt, or new construction.

We help identify:

• Old concrete footings

• Foundation walls

• Structural remnants

• Previously demolished building footprints

This service is especially valuable for redevelopment projects, environmental assessments, and pre-construction planning where undocumented subsurface structures may pose risks.

We provide ice thickness testing and structural ice quality assessment for ice roads, winter access routes, and remote industrial crossings.

Using non-destructive scanning methods, we measure:

• Ice thickness

• Layer consistency

• Density variations

• Potential weak zones

Accurate ice thickness evaluation is critical for ensuring safe load capacities for transport vehicles, heavy equipment, and resource operations operating in winter environments.

Our GPR gravel pit surveys can be used under the right soil and moisture conditions to help map and estimate subsurface gravel deposits. Using Ground Penetrating Radar technology, we analyze density changes beneath the surface to identify potential aggregate zones.

This service can assist with:

• Mapping gravel deposit boundaries

• Identifying material depth variations

• Supporting excavation planning

• Reducing exploratory digging

Because soil composition and moisture content affect signal performance, site conditions are evaluated prior to survey work to determine feasibility and expected accuracy.