Underground Utility Detection Surveys

HSG47 guidance recommends than an underground utility detection survey is completed before working on or near to buried services.

Using the latest underground utility detection technology including Radio Frequency Location (RFL) and Ground Penetration Radar (GPR), ESG is able to locate metallic pipes, plastic pipes, drainage runs, electric cables, communication and fibre optic cables. In fact, just about any underground utility.

Typically, our underground utility detection surveys are completed to The Survey Association Level 4 or BSI PAS128 specifications. Other service specification levels are available on request to meet demands. Survey results can be provided in a range of formats to meet your project requirements. ESG can also undertake topographic surveys upon which to overlay the underground utility survey data, should these not already be available.

 

Benefits of Using ESG Underground Utility Detection Surveys Include: 

  • Reduced exposure to buried hazards
  • Non-intrusive survey - minimises disruption
  • Desk study / statutory service provider searches
  • NVQ trained and experienced staff
  • Latest survey equipment and software
  • Surveys to PAS 128 or TSA standards available

 

We can find virtually all utilities with the exception of non-metallic utilities using a Radio Frequency Location (RFL) survey, conducted by our trained surveyors. Extending this method by the addition of Ground Penetration Radar (GPR) will add the non-metallic items, and complete the full underground utility detection survey, providing our clients with an accurate record of all underground utility depths and locations.

 

Radio Frequency Location (RFL)

RFL is the main technology behind utility detection surveys, and the tools used by ESG are the most advanced form of what most people know as “CAT & Genny” (Cable Avoidance Tool & Signal Generator).

Utilising RFL in our underground utility detection surveys means ESG has the ability to detect underground utilities such as:

  • Electricity cables
  • Communication cables
  • Telecommunication cables
  • Cable TV cables
  • Metallic water pipes
  • Metallic gas pipes
  • Metallic fuel pipes
  • Metallic vent pipes

 

Ground Penetration Radar (GPR)

GPR is used to locate buried objects which are foreign to the surrounding environment. The main advantage to using this technology is that it can identify changes or interfaces between different media below ground. Although no indication is given as to the detected object’s material, and only general indications of size can be determined, this method is invaluable in obtaining information relating to the (previously invisible) underground environment.

Utilising GPR in our underground utility detection surveys means ESG has the ability to detect underground utilities such as:

  • Fibre optic cables
  • Plastic water pipes
  • Plastic gas pipes
  • Plastic cable ducts
  • Plastic fuel pipes
  • Plastic vent pipes
  • Concrete pipes
  • Clay pipes