What is GPR?

Certification and Training

The success of GPR scanning is entirely based on the skill of the operator. Our GPR specialists have been certified and fully trained through participating in courses offered by Sensors and Software in Mississauga Ontario, and through their online webinar learning.  Origo Environmental is a member of the BC Common Ground Alliance that provides the development of consistent practices in connection with underground infrastructure. Our training is ongoing throughout the year to maintain skills and to ensure we are current with GPR technologies.

Utility locating – serious stuff

Underground utility locations are growing increasingly complex. In addition to metallic utilities and conduits, new generation of non-metallic utilities including fiber optic cables and PVC piping creates a more complex situation to track remotely. Information gathered from old maps and drawings should not be relied upon – many simply do not exist – or due to their inaccuracy pose serious HSE issues if accidentally dug up.  It is essential that precise and reliable data are available to map out the presence, location and depth of these underground utilities features.

What is GPR?

Ground Penetrating Radar (GPR) uses electromagnetic energy technology in the form of radar that bears no health and safety consequences to accurately identify and locate the position of underground utility services.  This technology is non-destructive and provides real-time results allowing little downtime on the job-site.

The location and target depth can be estimated instantly, and services are clearly marked on the ground to enable safe location by either drilling or excavator.

What’s it used for?

GPR has widespread applications for locating the following utilities,

  • Buried pipes (water, sewer, sanitary, gas)
  • Cables conduits (telephone and data, fiber optic)
  • Buried storage tanks, oil tanks, septic tanks.
  • Landfill boundaries, water table depth, abandoned mine shafts.
  • Changes in soil fill conditions, or salinity.

What we offer …

GPR can be deployed in a simple ‘Locate and Mark’ mode for rapid on-site solutions, or in a more advanced ‘Survey and Map’ mode that provides unmatched capability for defining subsurface infrastructure, for Subsurface Utility Engineering (SUE) projects, or controlling excavation in complex areas.

Locate and Mark

This is a simple and fast data collection method designed for real-time data interpretation to locate targets in the subsurface. Uses single line scan method to mark and locate targets quickly. Ideal where uncertainty exists on the job-site in a pre-dig situation.

Survey and Map

This is a more involved GPR procedure and is used to collect GPR lines and grids and then transfer the data to a PC workstation for post-processing and display using additional software. Ideally suited to Subsurface Utility Engineering (SUE) studies where more complex subsurface imaging is required to identify utilities. The survey is Trimble GPS supported with the ability to create 3D gridded and rendered data including depth slicing, and includes superimposed radar images on Google Earth with an accuracy of ~1m.