5KC call for utility companies to make tracer wire a mandatory task when laying plastic or none metal pipework. Safe excavation will nearly always involve the use of a Cat and Genny but cat scans can’t pick up none metal pipework unless a signal is sent down them first.
The whole process could be simplified by utility companies being made to lay tracer wire when installing underground pipework making excavation much safer as ground workers will be able to locate buried pipework with ease.
There are fatalities every year by unsafe excavation where operatives have been severely injured due to pipes being in places where no one would have imagined, in many cases far shallower than legally permitted.
The cost of installing tracer wire is a small compromise when we consider the severe damage caused by unsafe excavation and associated health and safety risks.