By using electromagnetic locating technology Orbital can locate buried metallic conduits and cables. Orbital cannot locate buried non-metallic lines such as plastic or concrete pipes without inserting a trace rod into the pipe. Orbital can reliably locate traceable buried lines with a degree of accuracy of 500mm vertically and 300mm horizontally (as per AS 5488-2013 Classification of Subsurface Utility Information (SUI)) but accuracy above this is regulary achieved. There may be more than one buried service at any location. Lines may be in close proximity to each other or buried beneath another. Due to limitations inherent in the technology being employed and/or the lack of information in regard to underground services in a particular area, some services may remain undetected despite Orbital’s best efforts.
Orbital Underground Service Location Pty Ltd, its office holders and employees, take no responsibility for the location of services, except in accordance with the above. The Australian Standard, AS 5488-2013 Classification of Subsurface Utility Information (SUI), is utilised for the location of services. As electronic location is the primary method of identifying and marking services, these conform to a Quality Level B (QL-B) survey. The exact location and depth of services (QL-A) can only be ascertained by hand or vacuum excavation as appropriate (i.e.pot holing).
Overall, any work around underground services involves a degree of risk. As such, service location is a form of risk management and ultimate responsibility lies with the client having been informed of such risks and choosing to proceed on that basis.