Soil Resistivity Injection Testing Service

Proper grounding is essential to prevent unwanted voltage rise under fault conditions and creating EPR and Touch potential hazards for personnel, critical equipment and process systems. By carrying out accurate measurement of earth electrode resistance using soil injection testing methods, will allow effective design of grounding systems. This enhances the ability to minimize potential transient over-voltage hazards, in compliance with regulations and standards, and ensures personnel safety through the rapid detection and isolation of the faults in a distribution system.
At LONGMONT, we have licensed, experienced and qualified personnel to carry out Soil Injection Testing, Soil Resistivity Testing and earth design using the latest technology, service and quality management. On completion, installation and design certification is provided for compliance with AS/NZS Standards. To complement this selection, we include the services of specialist consultancy associates with whom we have successfully completed similar projects. The company or our personnel are active members of number of professional bodies including; IE Aust, IEEE, IICA, ACA, & AICD. Member of Australian Standards Committee, El 024 – Lightning Protection









Our Specific In-House Services include but not limited to

  • Special & general earthing system design & installation to ensure integration and compliance with the various applicable Australian standards,
  • System test, EPR measurement injection tests, step and touch potential & tests,
  • Electrical installation design installation, testing and certification,
  • Telecommunications earth systems design & installation
  • Lightning protection systems design & installation;
  • Surge protection design specification & installation;
  • Electrical Safety Audit and Earthing Audit,
  • Forensic Engineering

The following summaries represent a sample of completed projects. Please contact LONGMONT if you require further information on any of our projects profiled here.


  • GHD – Meekatharra Soil Resistivity Test and Report
  • UNDERGROUND POWER DEVELOPMENT –Soil Resistivity Test, EPR Report for various sites (Butler, Alkimos, Carine, Baldivis)
  • ALCOA – Current Injection Testing to determine Maximum Touch Potentials at Substation Transformers at Pinjarra and Kwinana Refinery