White Papers
  • Role of GPR in Buried Utility Damage Prevention

    Modern society's critical dependence on the uninterrupted availability of telecommunications, power distribution, water/sewer networks and transportation systems has made damage prevention a greater priority.  Greater awareness of the costs of repair, service disruption liabilities, not to mention compensations for injury or death, have created a strong demand for more effective methods of detecting buried infrastructure.
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  • GPR for Buried Utilities

    Why Use GPR for Utility Locating?
    The tools and methods of locating buried utilities are quite diverse. The most common approach is energizing metal pipes and cables with electric currents and using a magnetic filed sensor to detect the current. Provided that the target can be exposed for connection or current can be induced, sufficient current flows on the target and the detector is sufficiently sensitive to detect the magnetic field created by the current, then this technique works well and is very cost effective.

    When access is difficult, electrical current does not flow (i.e. non-metallic utilities or broken connection), external noise makes detection impossible, GPR provides an alternative. GPR provides its own source of energy, detects both metallic and non-metallic objects, as well as detects disturbed soil and other buried structures.
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  • CSA S250-11 - Mapping of underground utility infrastructure

    This Standard specifies mapping requirements for the recording and depiction of underground utility infrastructure and related appurtenances at or below grade.
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  • ASCE 38-02 standard

    This Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data presents a credible system for classifying the quality of utility location information that is placed in design plans.
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