Any company  that is about to undertake any sort of work that involves digging or excavating  the ground must first take every possible step to avoid striking any  underground services that may be in the area. 
The fact is  that they can be anywhere. Some places like the local high street will rather  obviously have all sorts of underground services in the roadway or under the  pavements, but there are many other places where they may be, although it may  not be obvious. The very first thing to do is to contact utilities in the area  and obtain STATS, or plans, but these must not be regarded as 100% accurate since  in some cases they are not. 
This means  that it is necessary to carry out a survey of the area involved in the  excavation in order to double-check the STATS and locate services even if there  are no STATS, which can also be the case.
Most  reputable contractors take every precaution, but the simple fact is that there  are still some 60,000 strikes of underground services every year, many  resulting in injury and some fatal. That comes out to around 230 every working  day. 
The tools  used to locate and identify underground services are the CAT and the Genny. CAT and Genny training on a recognised CAT course using the latest CAT 4 is essential for anyone who will  use them, as they have their limitations. It is vital that operatives are  trained to the highest standards in order to avoid cable strikes and there are  some organisations that recognise certain courses as being of the required  calibre. These include The Survey Association, CSCS, and EUSR. So, for example,  one might undertake an EUSR CAT and  Genny training course which would result in the award of an EUSR card if  the training resulted in a pass.  






